WorldWideScience

Sample records for helen perli tervise

  1. Tallinna harta: tervisesüsteemid tervise ja jõukuse heaks / Maret Maripuu, Marc Danzon

    Index Scriptorium Estoniae

    Maripuu, Maret, 1974-

    2008-01-01

    22. juunil 2008 Tallinnas toimunud Maailma Terviseorganisatsiooni (WHO) Euroopa ministrite konverentsil tervisesüsteemidest allkirjastasid sotsiaalminister Maret Maripuu ja WHO Euroopa regionaaldirektor Marc Danzon Tallinna harta

  2. Surnumeri - elu ja tervise meri / Ljudmila Tulina

    Index Scriptorium Estoniae

    Tulina, Ljudmila

    2002-01-01

    Dr. Nona International LTD valmistatud ravimpreparaatidest, kosmeetika- ja parfümeeriatoodetest, akadeemik Nona Kuhhina ravimeetodist ning terviseklubi tegevusest.Ilu ja Tervise Klubi (Tallinn), Dr. NONA International LTD, firma

  3. E-tervise projektid saavad hoo sisse / Eli Lilles

    Index Scriptorium Estoniae

    Lilles, Eli

    2008-01-01

    Tervishoiuteenuste seaduse muutmise seadusest, millega luuakse õiguslikud alused e-tervise projektide elluviimiseks. Lisatud Põlva haigla ülemarst Margit Rikka ja Põlva maavalitsuse sotsiaal- ja tervishoiuosakonna juhataja Mare Dreyersdorfi kommentaarid

  4. Patsiendiportaalide avamine e-tervise teenuste pakkujatele on uus suundumus tervise infosüsteemide arendamisel / Siim Nahkur

    Index Scriptorium Estoniae

    Nahkur, Siim

    2013-01-01

    Ülevaade 13.-15. mail 2013 Dublinis toimunud Euroopa e-tervise ja sellega seotud meditsiinitehnoloogiate arendamisele pühendatud konverentsil käsitletud teemadest ning patsiendi personaalse terviseloo süsteemi arendamisest Eestis

  5. Sotsiaal-majanduslik staatus tervise tausttegurina / Margo Kikas, Ene Lausvee

    Index Scriptorium Estoniae

    Kikas, Margo

    2008-01-01

    Uuringust seoste kohta Eesti inimeste tunnetatud tervise ning sotsiaal-majandusliku ja psühhosotsiaalse seisundi vahel. Uuring tugineb Tallinna Ülikooli sotsiaaltöö eriala üliõpilaste poolt aastatel 2001-2002 tehtud anonüümsel ankeetküsitlusel põhiliselt toimetulekuraskuste, krooniliste haiguste, puudega või riskikäitumisega isikute seas

  6. Gorgias's "Helen" Revisited.

    Science.gov (United States)

    Schiappa, Edward

    1995-01-01

    Argues that identifying Gorgias's "Helen" as an epideictic speech is misleading; the speech is not veiled defense of the "Art of Rhetoric"; Gorgias may have inaugurated the prose genre of encomia; and "Helen"'s most significant theoretical contribution is to offer a secular account of the workings of the logos that…

  7. Tervise kaitse põhiõigusest apteekide asutamispiirangute näitel / Ants Nõmper

    Index Scriptorium Estoniae

    Nõmper, Ants, 1977-

    2012-01-01

    Apteekide asutamispiirangute regulatsioonist põhiseaduse §-st 28 tuleneva tervise kaitse õiguse kontekstis. Õiguskantsleri 19. septembri 2012. aasta ettepanekust "Üldapteegi tegevusloa väljaandmise ja muutmise piirang". Teiste riikide kogemustest. Tabel

  8. Tervise edendamine ja kvaliteedi tagamine Eesti haiglates / Kaja Põlluste, Jane Alop, Eda Merisalu...[jt.

    Index Scriptorium Estoniae

    2006-01-01

    1990ndate aastate keskel algatati Maailma Terviseorganisatsiooni eestvedamisel tervist edendavate haiglate (TEH) liikumine. TEH-võrgustikuga ühinenud ja võrgustikku mittekuuluvate Eesti haiglate tegevusest tervise edendamisel ja tervishoiuteenuste kvaliteedi tagamisel. Lisatud statistilised tabelid ja diagrammid

  9. Tervisesüsteemid peavad edaspidi näitama oma tulemuslikku toimimist. WHO Euroopa regiooni ministrite konverents Tallinnas juunis 2008 / Väino Sinisalu

    Index Scriptorium Estoniae

    Sinisalu, Väino, 1940-

    2008-01-01

    25.-27. juunil 2008. a. Tallinnas WHO Euroopa regiooni 53 riigi tervishoiuministrite eestvedamisel toimunud konverentsist, mille märksõnadeks olid tervisesüsteem, tervis ja jõukus. Konverentsi presidendiks oli Eesti sotsiaalminister Maret Maripuu. Vt. samas: Tallinna harta: tervisesüsteemid tervise ja jõukuse heaks

  10. Ilves hakkab juhtima Euroopa Komisjoni e-tervise töörühma

    Index Scriptorium Estoniae

    2011-01-01

    President Toomas Hendrik Ilves võttis vastu Euroopa Komisjoni presidendi José Manuel Barroso, asepresidendi Neelie Kroes’i ja volinik John Dalli’ ettepaneku asuda juhtima Euroopa Liidu e-tervise tulevikku kujundavat kõrgetasemeliste nõuandjate töörühma

  11. Pingeline töötempo tapab poliitikute tervise / Andri Maimets

    Index Scriptorium Estoniae

    Maimets, Andri

    2003-01-01

    Ilmunud ka Infopress (2003/Oct/3) nr. 40, lk. 132-133. Südamearst Margus Viigimaa hinnangust juhtivate poliitikute tervisele. Poliitikute tervise baromeeter: Arnold Rüütel, Ene Ergma, Siiri Oviir, Tarmo Leinatamm, Tarmo Loodus, Marko Pomerants, Margus Leivo, Toomas Hendrik Ilves

  12. Maarja ja Helen - Kodukolde aiatoimetajad

    Index Scriptorium Estoniae

    2006-01-01

    "Kodukolde" aiatoimetaja Maarja Jaaniste ja maastikukujundaja Helen Virkunen toovad nüüdsest lugejani aia- ja maastikuveerge. Mõlemad on lõpetanud Jäneda aia- ja maastikukujunduse kursusse (1996.1999). Maarja ja Helen tutvustavad teineteist

  13. Tervise enesehinnangu sotsiaalmajanduslikud erinevused Eestis : Euroopa sotsiaaluuring 2004 / Ülle Sildever, Kersti Pärna, Inge Ringmets

    Index Scriptorium Estoniae

    Sildever, Ülle

    2008-01-01

    Euroopa sotsiaaluuringust, mis korraldati Eestis ajavahemikul novembrist 2004 kuni jaanuarini 2005 ja mille käigus uuriti 35-54aastaste täiskasvanute tervise enesehinnangu sotsiaal-majanduslikke erinevusi. Lisatud statistilised tabelid

  14. Special report: Mt. St. Helens

    Science.gov (United States)

    Mt. St Helens Volcano, Cascade Range, Southern Washington, USA (46.20°N, 122.18°W.) All times are local (GMT - 7 h through October 24, GMT - 8 h thereafter. Lava extrusion that probably began October 30 added a new lobe to the composite dome in the crater of Mt. St. Helens. After lava extrusion ended September 10 (see September 22 Eos), rates of deformation in the crater remained low for several weeks, as they had after earlier extrusion episodes. Sulfur dioxide emission ranged from 70 to 190 tons per day between October 9 and 24, but showed no particular trends. Inflation of the dome has caused small thrust faults to form in the surrounding crater floor. In early October the most active thrust, south of the dome, was moving at about 1.5 cm/d, and stations on the north crater rampart showed outward movement of about 0.5 cm/d. By October 24 these rates had increased to 14.5 and 3.5-4 cm/d, respectively, and leveling profiles perpendicular to the dome showed that crater floor tilt rates had reached 400-500 μrad/d, prompting the U.S. Geological Survey (USGS) to issue an advisory prediction of renewed lava extrusion within the next two weeks.

  15. A tribute to Helen Leith

    DEFF Research Database (Denmark)

    Atkinson, Jessica; Cave, Phoene; McDermott, Orii

    2015-01-01

    I met Helen Leith when she in 2010 participated in her first PhD course at the Doctoral Programme in Music Therapy in Aalborg. I feel very privileged to have met Helen, a unique person and a dedicated and inspiring researcher. She will be remembered by the team in Aalborg and her colleagues with ...

  16. Rebuilding Mount St. Helens

    Science.gov (United States)

    Schilling, Steve P.; Ramsey, David W.; Messerich, James A.; Thompson, Ren A.

    2006-01-01

    On May 18, 1980, Mount St. Helens, Washington exploded in a spectacular and devastating eruption that shocked the world. The eruption, one of the most powerful in the history of the United States, removed 2.7 cubic kilometers of rock from the volcano's edifice, the bulk of which had been constructed by nearly 4,000 years of lava-dome-building eruptions. In seconds, the mountain's summit elevation was lowered from 2,950 meters to 2,549 meters, leaving a north-facing, horseshoe-shaped crater over 2 kilometers wide. Following the 1980 eruption, Mount St. Helens remained active. A large lava dome began episodically extruding in the center of the volcano's empty crater. This dome-building eruption lasted until 1986 and added about 80 million cubic meters of rock to the volcano. During the two decades following the May 18, 1980 eruption, Crater Glacier formed tongues of ice around the east and west sides of the lava dome in the deeply shaded niche between the lava dome and the south crater wall. Long the most active volcano in the Cascade Range with a complex 300,000-year history, Mount St. Helens erupted again in the fall of 2004 as a new period of dome building began within the 1980 crater. Between October 2004 and February 2006, about 80 million cubic meters of dacite lava erupted immediately south of the 1980-86 lava dome. The erupting lava separated the glacier into two parts, first squeezing the east arm of the glacier against the east crater wall and then causing equally spectacular crevassing and broad uplift of the glacier's west arm. Vertical aerial photographs document dome growth and glacier deformation. These photographs enabled photogrammetric construction of a series of high-resolution digital elevation models (DEMs) showing changes from October 4, 2004 to February 9, 2006. From the DEMs, Geographic Information Systems (GIS) applications were used to estimate extruded volumes and growth rates of the new lava dome. The DEMs were also used to quantify dome

  17. Helen Mirreni kuningannad / Jaanus Noormets

    Index Scriptorium Estoniae

    Noormets, Jaanus

    2007-01-01

    Stephen Frearsi mängufilm "Kuninganna" ("The Queen") : stsenarist Peter Morgan : kuninganna Elizabeth II kehastab Helen Mirren, peaminister Tony Blair'i Michael Sheen : Suurbritannia, 2006. H. Mirreni filmiauhindadest ja Oscarivõimalustest selle rolli eest

  18. IPv6 for HelenOS

    OpenAIRE

    Steinhauser, Antonín

    2013-01-01

    This thesis extends HelenOS operating system in order to be IPv6 capa- ble. New IPv6 protocol implementation is on the same level as previous IPv4 protocol implementation. HelenOS networking stack now offers three modes of networking: IPv4-only, IPv6-only and dual stack mode. Dual stack mode enables usage of both protocols at once. The thesis describes previous state of HelenOS networking stack, analyzes differences between IPv4 and IPv6 protocols and gives reasons for single strategic decisi...

  19. 1980 Mount Saint Helens, USA Images

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — An earthquake occurred at 15 32 UT, only seconds before the explosion that began the eruption of Mount St. Helens volcano. This eruption and blast blew off the top...

  20. Eruption of Mount St. Helens, May 18, 1980

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The May 18, 1980 eruption of Mount Saint Helens was the most destructive in the history of the United States. Mt. Saint Helens is located in southwest Washington in...

  1. Helene elukool pandi filmi / Külli Kriis

    Index Scriptorium Estoniae

    Kriis, Külli, 1961-

    2010-01-01

    Dokumentaalfilmide sarja "Eesti lood" osana valminud filmist "Helene elukool", mis räägib Maidla põhikooli loodusainete õpetaja Helene Urva esimesest õpetaja-aastast. Filmi režissöör on Liis Nimik

  2. Helen Liddell : Uute turgude avanemine on eelis / Helen Liddell ; interv. Annika Poldre

    Index Scriptorium Estoniae

    Liddell, Helen

    2003-01-01

    Shotimaa riigisekretär Helen Liddell Euroopa Liidu mõjudest Shotimaale ja shotlastele, shotlaste arvamusest EL-i laienemise kohta, konkurentsist põllumajanduses, üleminekust eurole, shotlaste arvamusest EL-is toimuvate muutuste kohta. Tabel: Shotimaa

  3. The Helen logos and Herodotus’ Fingerprint

    NARCIS (Netherlands)

    de Jong, I.; Baragwanath, E.; de Bakker, M.

    2012-01-01

    Herodotus' discussion of the Trojan War in Histories 2.112-20 consists mainly of two strands: a historiographical evaluation of his sources, Homer and the Egyptian priests (116-17, 120), and the presentation of an alternative version (Helen never went to Troy but stayed in Egypt), as heard from the

  4. The Ghost Tradition: Helen Of Troy In The Elizabethan Era

    Directory of Open Access Journals (Sweden)

    RADUCANU ADRIANA

    2014-12-01

    Full Text Available Reputedly the most beautiful woman who has ever lived, Helen of Troy (or Sparta is less well known for her elusive, ghost-like dimension. Homer wrote that the greatest war of Western classical antiquity started because of Helen's adultery followed by her elopement to Troy. Other ancient writers and historians, among theme Aeschylus, Stesichorus, Hesiod, Pausanias, Aristophanes, Euripides and Gorgias of Leontini, challenged the Homeric version, in various ways and attempted to exonerate Helen either by focusing on her phantom/ ghost/ as the generic object of man's desire and scorn or by casting doubt on the mechanisms of the blaming process. This paper argues that the Elizabethans Christopher Marlowe and William Shakespeare adopted and adapted the anti-Homer version of the depiction of Helen, what I here call “the ancient Helen ghost tradition”; nevertheless, in so doing they further reinforced the character's demonic features and paradoxically achieved a return to the adulterous Homeric Helen.

  5. Helene Deutsch: a life in theory.

    Science.gov (United States)

    Thompson, N L

    1987-04-01

    Evaluations of Helene Deutsch's work on female psychology almost invariably focus on her idealization of motherhood and on her attribution of narcissism, passivity, and masochism to the "feminine" woman. The author suggests that identification plays a more important role in Deutsch's portrayal of feminine development than has hitherto been acknowledged. Deutsch treats identification as a reparative process that enables women to overcome major traumata by allowing them to re-experience the initial bliss of the mother-child relationship. The biographical origins of Deutsch's theory of feminine development are explored, and an assessment offered of how her reliance on personal experience both enhanced and inhibited its explanatory power.

  6. The opsis of Helen: Performative Intertextuality in Euripides

    Directory of Open Access Journals (Sweden)

    Aspasia Skouroumouni Stavrinou

    2015-02-01

    Full Text Available Features of the play’s staging, costume, and gestures achieve a series of allusions to comparable features in the genre of comedy and thus reinforce the comic elements of the plot and characters of Helen.

  7. Satellite sar detection of hurricane helene (2006)

    DEFF Research Database (Denmark)

    Ju, Lian; Cheng, Yongcun; Xu, Qing

    2013-01-01

    In this paper, the wind structure of hurricane Helene (2006) over the Atlantic Ocean is investigated from a C-band RADARSAT-1 synthetic aperture radar (SAR) image acquired on 20 September 2006. First, the characteristics, e.g., the center, scale and area of the hurricane eye (HE) are determined....... There is a good agreement between the SAR-estimated HE center location and the best track data from the National Hurricane Center. The wind speeds at 10 m above the ocean surface are also retrieved from the SAR data using the geophysical model function (GMF), CMOD5, and compared with in situ wind speed...... observations from the stepped frequency microwave radiometer (SFMR) on NOAA P3 aircraft. All the results show the capability of hurricane monitoring by satellite SAR. Copyright © 2013 by the International Society of Offshore and Polar Engineers (ISOPE)....

  8. Makluura - loodusand tervise jaoks

    Index Scriptorium Estoniae

    2011-01-01

    Tutvustatakse harilikku ehk värvimakluurat (Maclura pomifera (Raf.) C.K.Schneid. ehk Maclura aurantiaca Nutt.),mooruseliste sugukonnast lõunamaist ravimtaime, mille viljad pole söödavad, kuid mida kasutatakse rahvameditsiinis tinktuuride ja salvide valmistamiseks

  9. On the Determination of the Mass of Helene

    Science.gov (United States)

    Jacobson, Robert Arthur

    2017-10-01

    Helene is the largest of Dione's co-orbital satellites; it librates about the L4 Lagrangian point. The smaller co-orbital, Polydeuces, librates about the L5 Lagrangian point. Since their discoveries, we have included both as members of the Saturnian satellite system for ephemeris development because observations of their motions lead to a determination of the mass of Dione. Theoretically, it should also be possible to infer the mass of the co-orbitals by observing their effect on the motion of Dione. Of course, because of their small sizes, Helene's mean radius is 18 km and that of Polydeuces is 1.3 km, their masses are presumed to be small. Consequently, very precise observations of Dione are required to be able to detect perturbations due to them. We believe that the Doppler tracking of Cassini during five close flybys of Dione may have provided a detection of Helene (Polydeuces is too small). The Doppler data were acquired for the purpose of determining Dione's gravity field. However, those data also provide a strong constraint on the orbital position of Dione. We included Helene's GM as one of the gravity parameters in our development of our post-Cassini Saturnian satellite ephemeris. That analysis relies on an extensive data set including the Cassini radiometric tracking. Our formal data fit yielded a statistically significant, but quite small, value for the GM, suggesting that Helene has an extremely low density. Perhaps it is a very porous body or a loose conglomeration of material collected at L4. We also examined possible bounds on the GM and found that assuming a massless Helene degrades the fit of the Dione orbit to the data. Moreover, assuming masses consistent with significant densities also degrades the fit. Our conclusion is that the actual GM of Helene is at least as large as our formal estimated value, but not large enough to be consistent with a 0.5 g cm-3 density.

  10. Helen Sirp - talent kodus ja võõrsil / Auri Jürna

    Index Scriptorium Estoniae

    Jürna, Auri, 1984-

    2013-01-01

    Eesti väljapanek "Ministry of Creative Affairs" Londoni moenädalal International Fashion Showcase. Väljapaneku autoriteks Helen Sirp, Kadri Kruus, Kristina Viirpalu, Kristian Steinberg, Karl Annus. Pikemalt Helen Sirbist

  11. Advanced pulse generator and preamplifier for the HELEN laser

    Science.gov (United States)

    Norman, Michael J.; Harvey, E. J.; Hopps, N. W.; Nolan, J. R.; Smith, W. F. E.

    1997-12-01

    A replacement for the HELEN laser has been proposed that would involve a considerable increase in performance up to 100 TW from 32 beams. The design for the new laser is to be based on the technology being developed for the US National Ignition Facility. The pulse generation and preamplification stages employ novel technologies and represent a significant departure from previous designs. As part of the laser replacement development program a pulse generator and preamplifier have been built and installed on the HELEN laser at AWE, based on those employed on the Beamlet laser physics demonstration facility at Lawrence Livermore National Laboratory. As well as providing experience of the technologies involved, this system represents a significant enhancement of the performance of HELEN. Initial pulses are generated by a diode-pumped Q-switched Neodymium-doped Yttrium Lithium Fluoride ring oscillator. These are then launched into optical fiber and transported to a series of two integrated optics amplitude modulators for pulse shaping. The resulting pulses are then transported by optical fibers to a ring regenerative preamplifier for amplification to a level suitable for input to the HELEN laser. We describe this system, its performance and the enhanced capabilities of the HELEN laser resulting from its installation.

  12. Volcano ecology: flourishing on the flanks of Mount St. Helens

    Science.gov (United States)

    Rhonda Mazza; Charlie Crisafulli

    2016-01-01

    Mount St. Helens’ explosive eruption on May 18, 1980, was a pivotal moment in the field of disturbance ecology. The subsequent sustained, integrated research effort has shaped the development of volcano ecology, an emerging field of focused research. Excessive heat, burial, and impact force are some of the disturbance mechanisms following an eruption. They are also...

  13. Kuidas läks? / Helen Sooväli

    Index Scriptorium Estoniae

    Sooväli, Helen, 1974-

    2009-01-01

    Tallinna Ülikoolis esitleti virtuaalkeskkonnas Second Life Eestit välisriikides tutvustav rändnäitus "Pildistatud Eesti". Fotode autoriteks on Annika Haas, Birgit Püve, Ingmar Muusikus ja Gabriela Järvet. Näituse kuraator Helen Sooväli. Näitus avati esmalt Eesti saatkonna hoones Washingtonis

  14. Blind Rage: An Open Letter to Helen Keller

    Science.gov (United States)

    Kleege, Georgina

    2007-01-01

    In a letter addressed to Helen Keller, the author discusses the frustrations of being blind in the modern-day world. She reflects on the seeming pettiness of her complaints next to the difficulties Keller would have faced, especially given all of the new technologies and accommodations available to the blind. She wonders how Keller dealt with her…

  15. Eesti disain / Eve Arpo, Ruth-Helene Melioranski

    Index Scriptorium Estoniae

    Arpo, Eve

    2009-01-01

    Ülevaade Eesti kapitalil põhinevatest ettevõtetest, mis toodavad mööblit, valgusteid, tekstiilitooteid. Eesti Disainikeskuse tegevusest, disainerite ja ettevõtjate koostööst räägib Ruth-Helene Melioranski

  16. Inpatient management of borderline personality disorder at Helen ...

    African Journals Online (AJOL)

    Objective: The aim of this report was to establish a profile of patients with borderline personality disorder (BPD) admitted to the acute inpatient psychiatric assessment unit at the Helen Joseph Hospital, in Johannesburg, over the course of 1 year. Methods: A retrospective record review was conducted to investigate the ...

  17. Small particles in plumes of Mount St. Helens

    Science.gov (United States)

    Rose, W. I.; Chuan, R. L.; Woods, D. C.

    1982-01-01

    Particles in the size range 0.1-25 microns were sampled by aircraft carrying a quartz crystal microcascade in the Mount St. Helens plume on three dates in August and September 1980. Two of the sampling dates represented 'typical' emissions of the volcano between plinian eruptions. One sampling flight was made 1-4 hours before the small plinian eruption of August 7, 1980 when the plume had become discontinuous and visibly darker. The plume sampled on August 7, before the eruption, contained mainly approximately 2-micron diameter silicic glass particles, fragments of the Mount St. Helens magma. The typical plumes sampled on September 22 and August 6 had much smaller concentrations of particles, trimodal size distributions with peaks at 10, 0.4, and 0.1 microns. The particles were largely nonsilicate and apparently represented Cu-Zn oxide (10 micron peak), Al sulfate, chloride, and oxide, and sulfuric acid (smallest size peak).

  18. Kunstnike ÜhesHingamine / Helen Sooväli

    Index Scriptorium Estoniae

    Sooväli, Helen, 1974-

    2009-01-01

    Näitus "Eesti nägu" Tallinna Kunstihoone Galeriis. Osalevad Eve Kask ning Eesti Kunstiakadeemia klaasi ja graafika eriala üliõpilased (loetletud). Juhendajaks Eve Kask koostöös Tallinna Ülikooli vanemteaduri Helen Soovälja ja kunstiajaloolase Ott Sandrakuga. Omaette väljapanekuga osaleb näitusel spetsiaalselt näituse jaoks kirjutatud tekstidega 17 eesti kirjanikku (loetletud). Näituse on kujundanud Terje Kallast ja Urmas Luure

  19. Helene: The Face that Launched a Thousand Slips

    Science.gov (United States)

    Moore, J. M.; Howard, A. D.; Schenk, P.; Thomas, P. C.

    2013-12-01

    Helene, (~17.6 km mean radius) is a L4 Trojan co-orbital of Saturn's moon Dione. Its hemisphere features an unusual morphology consisting of broad depressions and a generally smooth surface patterned with streaks and grooves. The streaks appear to be oriented down-gradient, as are the grooves. This pattern suggests intensive mass-wasting as a dominant process on the leading hemisphere. Kilometer-scale impact craters are very sparse on the leading hemisphere other than the degraded km-scale basins defining the overall satellite shape, and many small craters have a diffuse appearance suggesting ongoing mass wasting. Thus mass wasting must dominate surface-modifying processes at present. In fact, the mass wasting appears to have been sufficient in magnitude to narrow the divides between adjacent basins to narrow septa, similar, but in lower relief, to the honeycomb pattern of Hyperion. The prominent groves occur primarily near topographic divides and appear have cut into a broad, slightly lower albedo surface largely conforming to the present topography but elevated a few meters above the smooth surfaces undergoing mass wasting flow. Low ridges and albedo markings on the surface suggest surface flow of materials traveling up to several kilometers. Diffusive mass wasting produces smooth surfaces - such a pattern characterizes most of the low-lying surfaces. The grooves, however, imply that the transport process is advective at those locations where they occur, that is, erosion tends to concentrate along linear pathways separated by divides. In fact, in many places grooves have a fairly regular spacing of 125-160 m, defining a characteristic erosional scale. Several questions are prompted by the unusual morphology of Helene: 1) What is the nature of the surface materials? 2) Are the transport processes gradual or catastrophic motion from one or a few events? 3) What mechanisms drive mass wasting and groove development? 4) Have the formative processes been active in the

  20. Colonos y soldados en Oriente Helenístico

    Directory of Open Access Journals (Sweden)

    Adolfo Domínguez Monedero

    1994-01-01

    Full Text Available Este artículo estudia las formas que asume el asentamiento de soldados en el mundo helenístico. En primer lugar, se estudia la época de Alejandro Magno en cuanto que precedente; en efecto, Alejandro ha utilizado en gran medida a sus soldados para fundar nuevas colonias, que son un medio de proteger y defender sus conquistas. Este procedimiento ha sido igualmente empleado por sus sucesores, los reyes helenísticos. Aquí estudio ante todo los reinos Seiéucida y Tolemaico, haciendo especial hincapié en los diferentes métodos de los que cada uno de ellos se ha servido, y los distintos fines que debía alcanzar cada una de sus respectivas políticas de asentamiento. Del mismo modo, en cada uno de los tres casos abordados me detengo ante todo en las relaciones entre macedonios, griegos, indígenas y no griegos en general en las nuevas fundaciones. Como conclusión, se resalta el sentido general de todo el proceso en la conformación del mundo helenístico.This paper analyzes the ways in which the settlement of soldiers has been accomplished in the Hellenistic world. Firstly, I study the age of Alexander the Great as a precedent; Alexander has greatly used his soldiers in the foundation of new colonies as a way to protect and defend his conquests. This procedure has been also used by his successors, the Hellenistic kings. I study mainly the Seleucid and the Ptolemaic Kingdoms, stressing the different ways each of them has used, and the different purposes of their different settiement politics. In the three cases deait the relations between Macedonians, Greeks, Natives and non-greeks in general in the new foundations are underlined. As a conclusión the overall meaning of all the process in the shaping of the Hellenistic worid is emphasized.

  1. A Poet at Work: The Parody of Helen in the Thesmophoriazusae

    Directory of Open Access Journals (Sweden)

    Gian Franco Nieddu

    2010-11-01

    Full Text Available The detailed use which Aristophanes in Thesmophoriazusae makes of scenes and lines of Euripides' Helen implies study of a written text, not just recollection of general situations or scattered individual lines.

  2. Kool ja kultuur / Eduard Ubaleht, Kersti Liivak, Õile Kalme, Helen Lauk

    Index Scriptorium Estoniae

    2002-01-01

    Albu mõisahoones asuvast Albu Põhikoolist räägivad kooli direktor Eduard Ubaleht, kunstiõpetaja Kersti Liivak, kooli endine direktor, algklassiõpetaja Õile Kalme ja kooli vilistlane Helen Lauk / vahendas Aime Jaagus

  3. Resonancias Vocales y Memoria Sonora en Helen Brown

    Directory of Open Access Journals (Sweden)

    Andrés Grumann Sölter

    2016-09-01

    Full Text Available El artículo se concentra en indagar aspectos referidos a la intensificación de los usos de la voz y la sonorización musical que proponen Trinidad Piriz y Daniel Marabolí en Helen Brown (2013. Dando cuenta de un marco teórico que cuestiona la dimensión referencial con la que se analiza frecuentemente al teatro y proponiendo una aproximación fenomenológica que dé cuenta de la materialidad performativa que insta a intensificar las resonancias de la voz y la capacidad audible del sonido, el escrito analiza dos escenas o tracks en los que la memoria hecha cuerpo compromete de un modo particular a los espectadores que participan de la performance escénica.

  4. Mount St. Helens: A 30-year legacy of volcanism

    Science.gov (United States)

    Vallance, James W.; Gardner, Cynthia A.; Scott, William E.; Iverson, Richard M.; Pierson, Thomas C.

    2010-01-01

    The spectacular eruption of Mount St. Helens on 18 May 1980 electrified scientists and the public. Photodocumentation of the colossal landslide, directed blast, and ensuing eruption column—which reached as high as 25 kilometers in altitude and lasted for nearly 9 hours—made news worldwide. Reconnaissance of the devastation spurred efforts to understand the power and awe of those moments (Figure 1). The eruption remains a seminal historical event—studying it and its aftermath revolutionized the way scientists approach the field of volcanology. Not only was the eruption spectacular, but also it occurred in daytime, at an accessible volcano, in a country with the resources to transform disaster into scientific opportunity, amid a transformation in digital technology. Lives lost and the impact of the eruption on people and infrastructure downstream and downwind made it imperative for scientists to investigate events and work with communities to lessen losses from future eruptions.

  5. Lower Crustal and Moho Reflections Beneath Mount St. Helens

    Science.gov (United States)

    Levander, A.; Kiser, E.; Zelt, C. A.; Creager, K.; Ulberg, C. W.; Schmandt, B.; Hansen, S. M.; Abers, G. A.

    2016-12-01

    The multi-disciplinary project iMUSH (imaging Magma Under St. Helens) was designed to illuminate the magmatic system beneath Mount St Helens (MSH) from the subducting Juan de Fuca slab to the surface using seismic, magnetotelluric, and petrologic data. The iMUSH active source experiment consisted of 23 large shots and 6000 seismograph locations. Included in the active-source seismic experiment were 2 dense linear profiles striking NW-SE and NE-SW, each with over 1000 receivers ( 150 m spacing) and 8 shots. Using the 1D average velocity model around MSH determined from travel-time analysis (Kiser et al., 2016, Geology), we have common-midpoint stacked STA/LTA envelope functions from all of the data along the NW-SE profile. A number of bright reflection events in the CMP section show remarkably good correspondence with abrupt velocity changes that were imaged in the 2D travel-time analysis in the mid to lower crust and at the Moho: Reflections appear at 20-25 km depth at the tops of two lower crustal high velocity (Vp > 7.5 km/s) bodies. One of these high velocity bodies is directly beneath MSH. The other is 40 km SE of MSH, under the Indian Heaven volcanic field, a basaltic field last active 9 ka. We have interpreted the high velocity bodies as cumulates from Quaternary or Tertiary volcanism. Separating the two high Vp bodies is a lower velocity column (Vp ≤ 6.5 km/s) dipping to the SE from the midcrust to the Moho. In the CMP section, the Moho reflection is bright under the region of low velocity and dims beneath both of the high velocity lower crustal bodies. Seismicity associated with the 1980 eruption extended from the summit to 20 km depth, stopping just above the bright reflection at the top of the MSH high Vp body. Deep long period events under MSH, often associated with motion of magmatic fluids, cluster at 20-30 km depth along the southeastern edge of the same reflection. This leads us to suggest that lower crustal magmas migrate along the southeastern

  6. Geologic Map of the Helen Planitia Quadrangle (V-52), Venus

    Science.gov (United States)

    Lopez, Ivan; Hansen, Vicki L.

    2008-01-01

    The Magellan spacecraft orbited Venus from August 10, 1990, until it plunged into the Venusian atmosphere on October 12, 1994. Magellan Mission objectives included (1) improving the knowledge of the geological processes, surface properties, and geologic history of Venus by analysis of surface radar characteristics, topography, and morphology and (2) improving the knowledge of the geophysics of Venus by analysis of Venusian gravity. The Helen Planitia quadrangle (V-52), located in the southern hemisphere of Venus between lat 25 deg S. and 50 deg S. and between long 240 deg E. and 270 deg E., covers approximately 8,000,000 km2. Regionally, the map area is located at the southern limit of an area of enhanced tectonomagmatic activity and extensional deformation, marked by a triangle that has highland apexes at Beta, Atla, and Themis Regiones (BAT anomaly) and is connected by the large extensional belts of Devana, Hecate, and Parga Chasmata. The BAT anomaly covers approximately 20 percent of the Venusian surface.

  7. Ocean Surface Wind Speed of Hurricane Helene Observed by SAR

    DEFF Research Database (Denmark)

    Xu, Qing; Cheng, Yongcun; Li, Xiaofeng

    2011-01-01

    The hurricanes can be detected by many remote sensors, but synthetic aperture radar (SAR) can yield high-resolution (sub-kilometer) and low-level wind information that cannot be seen below the cloud by other sensors. In this paper, an assessment of SAR capability of monitoring high-resolution hur......The hurricanes can be detected by many remote sensors, but synthetic aperture radar (SAR) can yield high-resolution (sub-kilometer) and low-level wind information that cannot be seen below the cloud by other sensors. In this paper, an assessment of SAR capability of monitoring high......-resolution hurricane was conducted. A case study was carried out to retrieve ocean surface wind field from C-band RADARSAT-1 SAR image which captured the structure of hurricane Helene over the Atlantic Ocean on 20 September, 2006. With wind direction from the outputs of U.S. Navy Operational Global Atmospheric...... Prediction System (NOGAPS) model, C-band geophysical model functions (GMFs) which describe the normalized radar cross section (NRCS) dependence on the wind speed and the geometry of radar observations (i.e., incidence angle and azimuth angle with respect to wind direction) such as CMOD5 and newly developed...

  8. Blob-ology and biology of cryo-EM: an interview with Helen Saibil.

    Science.gov (United States)

    Saibil, Helen R

    2017-08-31

    Helen Saibil is Bernal Professor of Structural Biology at Birkbeck, University of London. After undergraduate work at McGill University, Canada, Helen moved to London for her PhD at Kings College. After stints at CEA Grenoble and the University of Oxford, she moved to Birkbeck where her lab studies the operation of macromolecular machinery-including molecular chaperones, protein folding/misfolding, and host cell interactions with pathogens. Helen is a Fellow of the Royal Society, Fellow of the Academy of Medical Sciences, and an Honorary Member of both the British Biophysical Society and the Royal Microscopical Society. She talked to us about the background, recent developments, and future prospects in cryo-electron microscopy.

  9. Multi-Wavelength investigation of the co-orbital moons Dione and Helene

    Science.gov (United States)

    Royer, Emilie M.; Hendrix, Amanda R.; Howett, Carly; Spilker, Linda

    2017-10-01

    The icy satellites Dione and Helene share the same orbit, at 6.26 Saturn radii from the giant planet, which is within Saturn’s diffuse E ring. Helene is one of Dione’s two Trojan moons, located in the leading Lagrangian point L4 of Dione’s orbit. We present here preliminary results on the investigation of the Dione-Helene duo in term of origin, formation and evolution. Specifically, the key objectives are to retrieve the photometric properties and composition of the moons to answer questions such as: Are the Dione and Helene surfaces made of the same material? Did they form in the same region of the Solar System? Is one satellite older than the other? Have they experienced the same amount of space weathering?To provide the most complete evaluation of the Dione and Helene surfaces and advance our understanding of how exogenic processes affect the surfaces of icy satellites we use the synergy of four of the Cassini instruments: UVIS (Ultraviolet Imaging Spectrograph), ISS (Imaging Science Subsystem), VIMS (Visual and Infrared Mapping Spectrometer) and CIRS (Composite Infrared Spectrometer). Composite disk-integrated spectra of both moons have been produced to conduct spectral modeling over a large wavelength range from the ultraviolet to the infrared, from 111nm to 1mm. Until now, most investigations have focused only on one wavelength domain, telling only part of the story. A multi-wavelength analysis allows an in-depth investigation of the surfaces of the Saturnian satellites as each wavelength probes a different layer of the surface. Special attention is directed toward the search for correlations of basic properties (albedo, scattering properties, texture, grain size, composition, porosity, thermal properties) between Dione and Helene.

  10. Racism, Disable-ism, and Heterosexism in the Making of Helen Keller

    OpenAIRE

    Prettol, Andy

    2008-01-01

    In his paper "Racism, Disable-ism, and Heterosexism in the Making of Helen Keller" Andy Prettol offers an analysis of prevailing narratives about Helen Keller. Prettol focuses on the dynamic interplay of race, (dis)ability, sexuality, and gender inherent to all Keller stories of triumph that are so popular in elementary schools across the U.S. He examines three specific works: William Gibson's playscript The Miracle Worker, written in 1956; the film of the same title directed by Arthur Penn i...

  11. Source parameters of microearthquakes at Mount St Helens (USA)

    Science.gov (United States)

    Tusa, Giuseppina; Brancato, Alfonso; Gresta, Stefano; Malone, Stephen D.

    2006-01-01

    We estimate the source parameters for a selection of microearthquakes that occurred at Mount St Helens in the period 1995–1998. Excluding the activity of 2004 September, this time period includes the most intense episode of earthquake activity since the last dome-building eruption in 1986 October. 200 seismograms were processed to obtain seismic moments, source radii, stress drops and average fault slip. The source parameters were determined from the spectral analysis of P waves, after correction for attenuation and site effects. In particular, P-wave quality (Qp) and site (S) factors have been previously calculated in the frequency ranges 2–7 Hz and 18–30 Hz. Because it was impossible to perform corrections for Qp and S over the whole spectrum we applied a new approach, based on the notion of ‘holed spectrum’, to estimate spectral parameters. The term ‘holed spectrum’ indicates a spectrum lacking corrected spectral amplitude values at certain frequencies. We carried out a statistical study to verify that dealing with the ‘holed spectrum’ does not lead to significant differences in the estimates of spectral parameters. We also investigated the dependence of spectral parameters (low-frequency level, corner frequency and high-frequency decay) on the bandwidth of spectral hole, and defined the threshold values for three different spectral models. Displacement ‘holed spectra’, corrected by attenuation and site response, are then used to determine spectral parameters in order to calculate seismic source parameters. Seismic moments range from 1017 to 1019 dyne-cm, source dimensions from 100 to 350 m, and average fault slip from 0.003 to 0.1 cm. Self-similarity seems to break down in that stress drops are very low (0.1–1 bars). We postulate that seismicity is associated with a brittle shear failure mechanism occurring in a highly heterogeneous material under a relatively low stress regime.

  12. Stress tensor computations at Mount St. Helens (1995-1998

    Directory of Open Access Journals (Sweden)

    S. Gresta

    2000-06-01

    Full Text Available Fault plane solutions of 459 events occurring between 1995 and 1998 at Mount St. Helens (State of Washington, Northwest U.S.A. were considered in order to infer the state of stress beneath the volcano. These events occurred in two distinct depth zones. The shallower zone is between 2 and 5.5 km, with shocks clustering in a tight cylindrical distribution about 1 km in radius directly beneath the crater. The deeper events are spread over a larger volume from 5.5 to 10 km depth and surround an aseismic zone below and slightly west of the lava dome. Faulting is characterized by a mixture of strike-slip, reverse and normal faults with maximum compression axes which do not cluster around a single direction. In the deep zone, between 5.5 and 10 km, P axes define a wheel-spoke pattern pointing radially away from the center of the aseismic zone. The 459 fault plane solutions were inverted for stress tensor parameters using the algorithm of Gephart and Forsyth. The inversion of the whole data set revealed that faulting was not produced by a uniform stress distribution. The subdivision of the zone into smaller volumes significantly reduced misfit and confidence areas of the solutions, whereas temporal subdivision of the sample did not lead to significant improvements in terms of stress uniformity. We suggest that the inhomogeneous stress field is consistent with a varying pressure source originating from the inferred crustal magma chamber and a thin conduit extending above it.

  13. Two cases of induced insanity. Helene Deutsch, Cambridge, Mass.

    Science.gov (United States)

    Roazen, P

    1981-01-01

    "Two cases of induced insanity", hitherto untranslated, was Helene Deutsch's first (1918) psychoanalytic paper; she presented Freud with a copy of it during the beginning of her analysis with him. As an experienced clinician who had studied under both Wagner von Jauregg in Vienna and Emil Kraepelin in Munich, Deutsch observed these cases during World War I as the University of Vienna's psychiatric facilities. Although the general reading public knows her best for her The Psychology of Women, she also wrote some well-known clinical papers; and it is characteristic of her that she brought these two cases without excessive theoretical speculation. In "Two cases in induced insanity" Deutsch described some of the strains of the wartime situation, and how whole families could join in hysterical confabulations in order to cope with emotional distress. One of her most famous later clinical contribution had to do with the emotional impoverishment of 'as if' personalities and their specific suggestibility. In other papers she continued her early concern with disturbed identification. As one examines Deutsch's work it is possible to fill out the history of psychoanalytic psychology. Without ignoring her later increase in theoretical sophistication, in "Two cases of induced insanity" we find Deutsch remarkably tolerant in her willingness to suspend judgement about the sources and fate of morbid thinking. A key therapeutic recommendation of hers was to separate the family members to allow their reality to return. Like some recent critics of undue diagnostic name-calling she advocated hesitation in discerning of disease entities as well as cautionary approach to treatment. The nature of familial love may leave everyone "normal" prone to disturbances which are not necessarily to be treated as a psychiatric illness. This example of one of Deutsch's first professional essays reflects the early thinking of a giant in psychoanalysis. She followed Freud in the conviction that the

  14. Under the Threat of Mount Saint Helens: A Study of Chronic Family Stress.

    Science.gov (United States)

    1982-02-01

    unable to predict how the mountain will act in the future. 12 A series of sharp - arthquakes began this morning at Mt. St. Helens, fol- lowed by lava...Civile Centro Studi Difesa Civile Los Alamos Scientific Laboratory Rome, Italy ATTN: Document Library Los Alamos, New Mexico 87544 1 Office of Civil

  15. De eeuwigheid verzameld : Helene Kröller-Müller (1869-1939)

    NARCIS (Netherlands)

    Rovers, E.M.

    2010-01-01

    Een kist met 3400 brieven ligt aan de basis van de binnenkort te verschijnen biografie ‘De eeuwigheid verzameld’ van Helene Kröller-Müller (1869-1939), de grondlegster van het gelijknamige museum in Otterlo. Dankzij dit unieke bronnenmateriaal kon auteur Eva Rovers een nieuw licht werpen op de

  16. An Interview: Helen B. Landgarten, MA, MFCC, A.T.R.-BC, HLM.

    Science.gov (United States)

    Warren, Linda A.

    1995-01-01

    An interview with Helen B. Landgarten, a pioneer in art psychotherapy, addresses how she came to work in this field, her training, her experience with Jungian therapy, current approaches to training art therapists, her own painting, and the role of the American Art Therapy Association today. (DB)

  17. The Larry Jarret House Program at the Helen Beebe Speech and Hearing Center.

    Science.gov (United States)

    Goldberg, Donald M.; Talbot, Pamela J.

    1993-01-01

    The Larry Jarret House is a one-week in-residence program of the Helen Beebe Speech and Hearing Center in Easton, Pennsylvania, for parents of children with hearing impairments. The program is designed to help parents maximize their child's use of residual hearing in daily life situations to develop spoken language. (JDD)

  18. Revised /sup 14/C age for St. Helens Y tephra at Tonquin Pass, British Columbia

    Energy Technology Data Exchange (ETDEWEB)

    Luckman, B.H.; Kearney, M.S.; King, R.H.; Beaudoin, A.B.

    1986-05-01

    The age of a Mount St. Helens set Y tephra at Tonquin Pass, British Columbia, previously assumed to be 4300 years BP, is revised to ca. 3400 years BP, based on bracketing /sup 14/C dates of 3140 +/- 70 (Beta 13558) and 3680 +/- 80 years BP (Beta 13559). The implications of this revision for tephrostratigraphy of this area are discussed.

  19. Helen Mirren võitis Elizabeth II rolliga brittide Oscari / Triin Tael

    Index Scriptorium Estoniae

    Tael, Triin

    2007-01-01

    Stephen Frearsi mängufilmis "Kuninganna" ("The Queen") kuninganna Elizabeth II kehastav Helen Mirren sai oma rolli eest parima naisnäitleja Bafta (Briti filmiakadeemia auhind). Linateos pälvis ka aasta parima filmi tiitli. Ka teistest võitjatest

  20. Evolution of Crater Glacier, Mount St. Helens, Washington, September 2006-November 2009

    Science.gov (United States)

    Walder, Joseph S.; Schilling, Steven P.; Sherrod, David R.; Vallance, James W.

    2010-01-01

    Lava-dome emplacement through a glacier was observed for the first time during the 2004-08 eruption of Mount St. Helens and documented using photography, photogrammetry, and geodetic measurements. Previously published reports present such documentation through September 2006; this report extends that documentation until November 2009.

  1. Novel peach flower types in a segregating population from ‘Helen Borchers’

    Science.gov (United States)

    Several new peach (Prunus persica) flower types were discovered in an F2 segregating population from an open-pollinated, non-showy-flowered F1 seedling of ‘Helen Borchers’, a double-flowered ornamental cultivar. The novel flower types were white and red single-flowered, non-showy blooms, as well as ...

  2. Musik, Spiritualität und Psychotherapie - Helen L. Bonnys Leben und Werk

    DEFF Research Database (Denmark)

    Maack, Carola

    2012-01-01

    Helen L. Bonny's life is described with an emphasis on her experiences of music and sprituality. These areas of experiences are (1) empiphaniy during music performance; (2) the role of music during drug-induced altered states of consciousness that may include spiritual experiences; (3) listening ...... to music as bringe to spiritual experiences; and (4) spiritual experiences while listening to music in psychotherapy....

  3. Tupikteid ei ole / Aimi Püüa, Kristina Orion, Helen Põllo, Kaie Piiskop

    Index Scriptorium Estoniae

    2015-01-01

    Innove õppekava ja metoodika keskuse juhataja Kaie Piiskop, testide ja uuringute keskuse juht Aimi Püüa, karjääriteenuste üksuse juht Kristina Orion, haridus- ja teadusministeeriumi kutsehariduse osakonna juhataja Helen Põllo arutlesid teemal kuidas jätkata haridusteed

  4. Double-Difference Earthquake Locations Using imaging Magma Under St. Helens (iMUSH) Data

    Science.gov (United States)

    Williams, M. C. B.; Ulberg, C. W.; Creager, K. C.

    2015-12-01

    The imaging Magma Under St. Helens (iMUSH) project deployed a magnetotelluric survey, high-resolution active-source experiment, two-year passive-source experiment, and gathered geochemical-petrological data to better understand the magmatic architecture of Mount St. Helens. A primary goal of the passive source experiment is to create 3-D P-wave and S-wave velocity models under the volcano from the surface to the slab. We use hypoDD, a double-difference algorithm, to gain high-precision relative earthquake locations for several hundred events within tens of kilometers of the Mount St. Helens crater. We use data from the first half (2014 June- 2015 July) of the two-year passive-source component of the iMUSH array recording six hundred useable earthquakes with a high-event density near the volcanic crater. The array includes seventy evenly-spaced broadband seismometers continuously sampling at 50 Hz within a 50 km radius of Mount St. Helens, and is augmented by dozens of permanent network stations. Precise relative earthquake locations are determined for spatially clustered hypocenters using a combination of hand picked P-wave arrivals and high-precision relative times determined by cross correlation of waveforms recorded at a common station for event pairs using a 1-D velocity structure. These high-quality relative times will be used to help constrain seismic tomography models as well. We will interrupt earthquake clusters in the context of emerging 3-D wave-speed models from the active-source and passive-source observations. We are examining the relationship between hypocentral locations and regions of partial melt, as well as the relationship between hypocentral locations and the NNW-SSE trending Saint Helens seismic Zone.

  5. Balti aadlipreili kunstiharrastusest : Helene Marie Zoege von Manteuffel (1773/74-1842) = Artistic pursuits of an aristocratic Baltic lady : Helene Marie Zoege von Manteuffel (1773/74-1842) / Kadi Polli

    Index Scriptorium Estoniae

    Polli, Kadi, 1973-

    2014-01-01

    Aadlitüdrukute haridusest ja kunstiharidusest Balti valgustusaja kunsti(haridus)maastikul. Perekond Zoege von Manteuffeli kunstilembusest ja Ojasoo mõisa tähtsusest baltisaksa kunstiajaloos. Helene Mariest Franz Gerhard Kügelgeni õpilasena ja abikaasana

  6. Review: Leonard and Virginia Woolf, the Hogarth Press and the Networks of Modernism, Ed. Helen Southworth (Edinburgh: Edinburgh UP, 2010

    Directory of Open Access Journals (Sweden)

    Caitlyn Tierney Caldwell

    2014-12-01

    Full Text Available A review of Helen Southworth (Editor, Leonard and Virginia Woolf, the Hogarth Press and the Networks of Modernism. ix + 256 pp., notes, appendix, index. Edinburgh: Edinburgh University Press, 2010. £75

  7. Monitoring vegetation recovery patterns on Mount St. Helens using thermal infrared multispectral data

    Science.gov (United States)

    Langran, Kenneth J.

    1986-01-01

    The Mount St. Helens 1980 eruption offers an opportunity to study vegetation recovery rates and patterns in a perturbed ecosystem. The eruptions of Mount St. Helens created new surfaces by stripping and implacing large volumes of eroded material and depositing tephra in the blast area and on the flanks of the mountain. Areas of major disturbance are those in the blast zone that were subject to debris avalanche, pyroclastic flows, mudflows, and blowdown and scorched timber; and those outside the blast zone that received extensive tephra deposits. It was observed that during maximum daytime solar heating, surface temperatures of vegetated areas are cooler than surrounding nonvegetated areas, and that surface temperature varies with percent vegetation cover. A method of measuring the relationship between effective radiant temperature (ERT) and percent vegetation cover in the thermal infrared (8 to 12 microns) region of the electromagnetic spectrum was investigated.

  8. Impact of Mount St. Helens eruption on hydrology and water quality

    Science.gov (United States)

    Bonelli, J. E.; Taylor, H. E.; Klein, J. M.

    1982-01-01

    The 1980 eruptions of Mount St. Helens in southeast Washington resulted in a pronounced effect on the surface and ground water resources of the state. In response to the volcanic activity, the U.S. Geological Survey intensified statewide surface and ground water sampling programs to determine the nature and magnitude of the volcanic-induced variations. Streams to the east of Mount St. Helens received the major ash fallout. Chemical effects were best noted in smaller streams sampled 60 to 70 miles northeast of Mount St. Helens. The chemical variations observed were pronounced but short lived. Sulfate and chloride increases in anionic composition were prevalent immediately following the eruption; however, the original bicarbonate predominance was again attained within several days. Suspended iron and aluminum concentrations were similarly elevated during the period of greatest ash deposition (highest turbidity); however, the dissolved concentrations remained relatively constant. Depressions of pH were minor and short lived. Streams draining to the south, tributaries to the Columbia river, showed little observable changes in water chemistry. Streams draining to the west (Toutle river and its tributaries) were compositionally affected by the various volcanic activities. Chloride and sulfate anion percentage exceeded the bicarbonate percentage up to one month following the eruption period. Streams and lakes sampled in the immediate vicinity of Mount St. Helens, in addition to trace metals, contained organic compounds derived from decomposing wood buried in the debris deposits. This organic material may constitute a significant source of organic compounds to surface and ground water for some time to come.

  9. Mount St. Helens Long-Term Sediment Management Plan for Flood Risk Reduction

    Science.gov (United States)

    2010-06-01

    SRS, staged SRS, and dredging – were to be evaluated during continuing planning and engineering. Provided below is the Syllabus from the 1985...2.2 shows the layout of one set of grade control structures. Figure 2.2 Example Layout of One Set of Grade Control Structures Mount St...orientation of the 2-dimensional grid layout . Figure 1. Lower Cowlitz Model Mesh Mount St. Helens Long-Term Sediment Management Plan Progress Report

  10. "To Struggle and Battle and Overcome: The Educational Thought of Nannie Helen Burroughs, 1865-1961

    OpenAIRE

    Jackson, Shantina Shannell

    2015-01-01

    Few twentieth century African American educators were as influential in their lifetime and as neglected by scholars in our day as Nannie Helen Burroughs. The founder of the National Training School for Women and Girls, she was admired by African American leaders ranging from Mary Church Terrell, Anna Julia Cooper, Carter G. Woodson, Ella Baker and Martin Luther King, Jr. Relying on Burroughs’ papers and other archival sources, this dissertation examines Burroughs’ educational thought and its ...

  11. Tähistame Helen Kelleri 130. sünniaastapäeva

    Index Scriptorium Estoniae

    Keskküla, Raissa

    2010-01-01

    Helen Kellerist ja tema sünniaastapäeva tähistamisest, samuti Eesti Pimekurtide Tugiliidu ettevõtmistest: koostöölepingust Eesti Kujurite Ühendusega, punktkirjas väljaantud raamatust "Õppimise ime", Hilton/Perkins programmi kaasabil Eesti pimekurtide ja nägemis-liitpuudega lastega töötavate õpetajate ning töötajate koolitamiset

  12. Helen Howitt: una semilla canadiense en la enfermería latinoamericana Helen Howitt: uma semente canadense na enfermagem latino-americana Helen Howitt: A Canadian seed in Latin American nursing

    Directory of Open Access Journals (Sweden)

    ANA LUISA VELANDIA MORA

    2009-07-01

    Full Text Available Este trabajo se propone hacer visible la presencia de Helen Howitt en la enfermería latinoamericana. Paralelamente pretende hacer un análisis de la influencia política del Servicio Cooperativo Interamericano de Salud Pública en la enfermería de la región y la presencia de organizaciones religiosas, especialmente norteamericanas, en varios países latinoamericanos. Helen Howitt, enfermera canadiense egresada de la Universidad de Alberta, fue enviada en 1942 por la Organización Panamericana de la Salud, OPS para que asesorara en Colombia al Ministerio de Trabajo, Higiene y Previsión Social. Pasó a formar parte del proyecto de apertura y organización de la Escuela Nacional Superior de Enfermeras, y fue su primera directora. Helen Howitt fue directora de la Escuela de Enfermería del Hospital Santo Tomás de la Zona del Canal de Panamá entre 1933 y 1938, luego fundadora y primera directora de la Escuela Nacional Superior de Enfermeras de Colombia entre los años 1943 y 1951; posteriormente de la Escuela Nacional de Enfermeras de Bolivia entre 1953 y 1959, cuando fue invitada a cumplir un cargo similar en Venezuela. A todos estos países llegó primero como consultora del respectivo Ministerio de Salud, a través de convenios con el Servicio Cooperativo Interamericano de Salud Pública. La Fundación Rockefeller daba becas para todos los países latinos. En la Escuela del Hospital Santo Tomás de Panamá había estudiantes de toda la América Central, Venezuela, Colombia, hasta del Ecuador y la Argentina. La Rockefeller quería unificar la enfermería en toda Latinoamérica. Llegó primero a Venezuela; y las enfermeras que se graduaron en Panamá fueron las líderes en América Latina, donde trataron de fundar escuelas.O presente trabalho pretende visibilizar a presença de Hellen Howitt na enfermagem latino-americana. Paralelamente, procura fazer uma análise sobre a influência política do Serviço Cooperativo Interamericano de Sa

  13. Helen Howitt: una semilla canadiense en la enfermería latinoamericana Helen Howitt: A Canadian seed in Latin American nursing Helen Howitt: uma semente canadense na enfermagem latino-americana

    Directory of Open Access Journals (Sweden)

    VELANDIA MORA ANA LUISA

    2009-07-01

    Full Text Available Este trabajo se propone hacer visible la presencia de Helen Howitt en la enfermería latinoamericana. Paralelamente pretende hacer un análisis de la influencia política del Servicio Cooperativo Interamericano de Salud Pública en la enfermería de la región y la presencia de organizaciones religiosas, especialmente norteamericanas, en varios países latinoamericanos. Helen Howitt, enfermera canadiense egresada de la Universidad de Alberta, fue enviada en 1942 por la Organización Panamericana de la Salud, OPS para que asesorara en Colombia al Ministerio de Trabajo, Higiene y Previsión Social. Pasó a formar parte del proyecto de apertura y organización de la Escuela Nacional Superior de Enfermeras, y fue su primera directora. Helen Howitt fue directora de la Escuela de Enfermería del Hospital Santo Tomás de la Zona del Canal de Panamá entre 1933 y 1938, luego fundadora y primera directora de la Escuela Nacional Superior de Enfermeras de Colombia entre los años 1943 y 1951; posteriormente de la Escuela Nacional de Enfermeras de Bolivia entre 1953 y 1959, cuando fue invitada a cumplir un cargo similar en Venezuela. A todos estos países llegó primero como consultora del respectivo Ministerio de Salud, a través de convenios con el Servicio Cooperativo Interamericano de Salud Pública. La Fundación Rockefeller daba becas para todos los países latinos. En la Escuela del Hospital Santo Tomás de Panamá había estudiantes de toda la América Central, Venezuela, Colombia, hasta del Ecuador y la Argentina. La Rockefeller quería unificar la enfermería en toda Latinoamérica. Llegó primero a Venezuela; y las enfermeras que se graduaron en Panamá fueron las líderes en América Latina, donde trataron de fundar escuelas.This work's purpose is to make more visible Hellen Howitt's presence in Latin American nursing. At the same time it pretends to make an analysis on the political influence of the Interamerican Cooperative Public

  14. Mount St. Helens, 1980 to now—what’s going on?

    Science.gov (United States)

    Dzurisin, Daniel; Driedger, Carolyn L.; Faust, Lisa M.

    2013-01-01

    Mount St. Helens seized the world’s attention in 1980 when the largest historical landslide on Earth and a powerful explosive eruption reshaped the volcano, created its distinctive crater, and dramatically modified the surrounding landscape. An enormous lava dome grew episodically in the crater until 1986, when the volcano became relatively quiet. A new glacier grew in the crater, wrapping around and partly burying the lava dome. From 1987 to 2003, sporadic earthquake swarms and small steam explosions indicated that magma (molten rock) was being replenished deep underground. In 2004, steam-and-ash explosions heralded the start of another eruption. A quieter phase of continuous lava extrusion followed and lasted until 2008, building a new dome and doubling the volume of lava on the crater floor. Scientists with the U.S. Geological Survey and University of Washington’s Pacific Northwest Seismograph Network maintain constant watch for signs of renewed activity at Mount St. Helens and other Cascade volcanoes. Now is an ideal time for both actual and virtual visitors to Mount St. Helens to learn more about dramatic changes taking place on and beneath this active volcano.

  15. "Ravimiohutus - rahva tervise kaitseks" / Marika Gordon

    Index Scriptorium Estoniae

    Gordon, Marika

    2010-01-01

    Ajakirja “Apteeker” ja Eesti Akadeemilise Farmaatsia Seltsi kevadkonverentsi ettekandeid kommenteerivad MEDA Pharma SIA Eesti juhataja Anu Adermann, Apteekide infotehnoloogia OÜ juhataja Siim Uibokand, Pärnu Lõvi apteegi juhataja Kärt Kambla ja Eesti Haigekassa ravimiosakonna peaspetsialist Erki Laidmäe

  16. Systematic detection of seismic events at Mount St. Helens with an ultra-dense array

    Science.gov (United States)

    Meng, X.; Hartog, J. R.; Schmandt, B.; Hotovec-Ellis, A. J.; Hansen, S. M.; Vidale, J. E.; Vanderplas, J.

    2016-12-01

    During the summer of 2014, an ultra-dense array of 900 geophones was deployed around the crater of Mount St. Helens and continuously operated for 15 days. This dataset provides us an unprecedented opportunity to systematically detect seismic events around an active volcano and study their underlying mechanisms. We use a waveform-based matched filter technique to detect seismic events from this dataset. Due to the large volume of continuous data ( 1 TB), we performed the detection on the GPU cluster Stampede (https://www.tacc.utexas.edu/systems/stampede). We build a suite of template events from three catalogs: 1) the standard Pacific Northwest Seismic Network (PNSN) catalog (45 events); 2) the catalog from Hansen&Schmandt (2015) obtained with a reverse-time imaging method (212 events); and 3) the catalog identified with a matched filter technique using the PNSN permanent stations (190 events). By searching for template matches in the ultra-dense array, we find 2237 events. We then calibrate precise relative magnitudes for template and detected events, using a principal component fit to measure waveform amplitude ratios. The magnitude of completeness and b-value of the detected catalog is -0.5 and 1.1, respectively. Our detected catalog shows several intensive swarms, which are likely driven by fluid pressure transients in conduits or slip transients on faults underneath the volcano. We are currently relocating the detected catalog with HypoDD and measuring the seismic velocity changes at Mount St. Helens using the coda wave interferometry of detected repeating earthquakes. The accurate temporal-spatial migration pattern of seismicity and seismic property changes should shed light on the physical processes beneath Mount St. Helens.

  17. The Stars Belong to Everyone: Astronomer and Science Writer Dr. Helen Sawyer Hogg (1905-1993)

    Science.gov (United States)

    Cahill, Maria J.

    2011-05-01

    University of Toronto astronomer and science writer Helen Sawyer Hogg (President of the AAVSO 1939-41) served her field through research, teaching, and administrative leadership. Additionally, she reached out to students and the public through her Toronto Star newspaper column entitled "With the Stars" for thirty years; she wrote The Stars Belong to Everyone, a book that speaks to a lay audience; she hosted a successful television series entitled Ideas; and she delivered numerous speeches at scientific conferences, professional women's associations, school programs, libraries, and other venues. This paper will illumine her life and the personal and professional forces that influenced her work.

  18. ICT Action School Development at Helen Parkhurst Dalton School, Part II

    Science.gov (United States)

    Hogenbirk, Pieter; van de Braak, Peter

    The paper presents the progress of the action plan for improvement of the ICT usage at the Helen Parkhurst Dalton School for secondary education. At the start of the described action period in 2007 the ICT-usage in education was assessed through an review performed by a group of European inspectors. This assessment formed the basis for a continuous development in the school for promoting and improving the usage of ICT. This was done by addressing the observed weaknesses with special measures, and continuing the action plans which were already put in place. For four main points of criticism the following measures were taken.

  19. The Poetics and Politics of Children's Play: Helen Levitt's Early Work

    OpenAIRE

    Gand, Elizabeth Margaret

    2011-01-01

    This dissertation examines the work of the American photographer, Helen Levitt. It focuses in particular on her first phase of production--the years from 1937 to 1943--when she developed an important archive of pictures documenting children's art and play encountered in the city streets. The dissertation is designed to help us understand the reasons why the subject of urban children's art and play proved so productive for Levitt in her first phase of work. Why did she return again and again t...

  20. Helen Flanders Dunbar, John Dewey, and clinical pragmatism: reflections on method in psychosomatic medicine and bioethics.

    Science.gov (United States)

    Hart, Curtis W

    2002-01-01

    This article outlines the method utilized by physicians and major figures in the founding of Clinical Pastoral Education, Helen Flanders Dunbar, in her work of 1943, Psychosomatic Diagnosis, and relates it to the currently evolving approach in bioethics known as clinical pragmatism. It assesses Dewey's influence on both Dunbar in psychosomatic medicine and clinical pragmatism in bioethics, and illustrates the breadth of influence of the school of philosophical thought known as pragmatism with which Dewey's name and those of William James and Charles Sanders Pierce are most often identified.

  1. Terpenoid marker compounds derived from biogenic precursors in volcanic ash from Mount St. Helens, Washington

    Science.gov (United States)

    Pereira, W.E.; Rostad, C.E.

    1983-01-01

    A volcanic-ash sample obtained after the 1980 eruption of Mount St. Helens, Washington, was analyzed for cyclic terpenoid organic compounds and polycyclic aromatic hydrocarbons using capillary gas chromatography-mass spectrometry-computer techniques. Various tricyclic diterpenoid acids and hydrocarbons were identified including dehydroabietic acid, dehydroabietin, dehydroabietane, simonellite, and retene. Preliminary evidence indicates that these compounds were derived from forest soils or atmospheric aerosols or both in the vicinity of coniferous forests. A diagenetic scheme involving three possible pathways for the conversion of abietic acid to retene is presented. ?? 1983.

  2. Kuidas toetate sel õppeaastal oma valla koolilapsi? / Külle Viks, Helen Metsma, Aivar Surva...[jt.

    Index Scriptorium Estoniae

    2009-01-01

    Küsimusele vastavad: Türi vallavalitsuse haridusspetsialist Külle Viks, Sõmerpalu valla lastekaitse ja sotsiaaltoetuste spetsialist Helen Metsma, Mäetaguse vallavanem Aivar Surva, Rapla abivallavanem Imbi Kalberg, Kärdla linna haridusnõunik Juta Alev, Albu vallavalitsuse sotsiaalnõunik Claire Miljukova, Võru linnavalitsuse haridusspetsialist Kristi Aavakivi

  3. Genetic structure among coastal tailed frog populations of Mount St. Helens is moderated by post-disturbance management

    Science.gov (United States)

    Stephen F. Spear; Charles M. Crisafulli; Andrew. Storfer

    2012-01-01

    Catastrophic disturbances often provide “natural laboratories” that allow for greater understanding of ecological processes and response of natural populations. The 1980 eruption of the Mount St. Helens volcano in Washington, USA, provided a unique opportunity to test biotic effects of a large-scale stochastic disturbance, as well as the influence of post-disturbance...

  4. Democracy and Schooling in California: The Legacy of Helen Heffernan and Corinne Seeds. Historical Studies in Education

    Science.gov (United States)

    Weiler, Kathleen

    2011-01-01

    Helen Heffernan and Corinne Seeds were nationally recognized as leaders of the progressive education movement and were key figures in what was probably the most concerted attempt to put the ideals of progressive education into practice in a state-wide system of public education in the United States. This book examines the struggle over public…

  5. Leonardo da Vinci jõudis Tallinna / Orest Kormašov, Helen Kokk ; intervjueerinud Ants Juske

    Index Scriptorium Estoniae

    Kormašov, Orest, 1964-

    2010-01-01

    Kadrioru Kunstimuuseumis eksponeeritakse 5.-12. veebruarini 2010. a. Leonardo da Vinci arvatavat autoportreed. Itaalia kunstiajaloolased kaasasid autoportree uurimisse Tallinna Ülikooli maaliosakonna juhataja Orest Kormašovi, kes teostas klassikalise portreeskulptuuri, ja Eesti Kunstiakadeemia graafilise disaini tudengi Helen Koka, kes valmistas arvutiimitatsiooni

  6. El universalismo judeo-helenístico en Filón de Alejandría y Pablo de Tarso

    OpenAIRE

    Antón Pacheco, José Antonio

    2004-01-01

    Filón de Alejandría y Pablo de Tarso son los dos representantes más notables del universalismo judeo-helenístico. Esta forma de ecumenismo judeo-helenístico puede ser encuadrada en el marco más amplio de la coiné, situación propiciada primero por las conquistas de Alejandro Magno y después por el Imperio Romano. Las principales corrientes de pensamiento que entran en la gestación de este universalismo por parte de Filón y de Pablo dependen tanto de la contribución helenística (...

  7. Helen Howitt: una semilla canadiense en la enfermería latinoamericana

    Directory of Open Access Journals (Sweden)

    ANA LUISA VELANDIA MORA

    2009-07-01

    Full Text Available Este trabajo se propone hacer visible la presencia de Helen Howitt en la enfermería latinoamericana. Paralelamente pretende hacer un análisis de la influencia política del Servicio Cooperativo Interamericano de Salud Pública en la enfermería de la región y la presencia de organizaciones religiosas, especialmente norteamericanas, en varios países latinoamericanos. Helen Howitt, enfermera canadiense egresada de la Universidad de Alberta, fue enviada en 1942 por la Organización Panamericana de la Salud, OPS para que asesorara en Colombia al Ministerio de Trabajo, Higiene y Previsión Social. Pasó a formar parte del proyecto de apertura y organización de la Escuela Nacional Superior de Enfermeras, y fue su primera directora. Helen Howitt fue directora de la Escuela de Enfermería del Hospital Santo Tomás de la Zona del Canal de Panamá entre 1933 y 1938, luego fundadora y primera directora de la Escuela Nacional Superior de Enfermeras de Colombia entre los años 1943 y 1951; posteriormente de la Escuela Nacional de Enfermeras de Bolivia entre 1953 y 1959, cuando fue invitada a cumplir un cargo similar en Venezuela. A todos estos países llegó primero como consultora del respectivo Ministerio de Salud, a través de convenios con el Servicio Cooperativo Interamericano de Salud Pública. La Fundación Rockefeller daba becas para todos los países latinos. En la Escuela del Hospital Santo Tomás de Panamá había estudiantes de toda la América Central, Venezuela, Colombia, hasta del Ecuador y la Argentina. La Rockefeller quería unificar la enfermería en toda Latinoamérica. Llegó primero a Venezuela; y las enfermeras que se graduaron en Panamá fueron las líderes en América Latina, donde trataron de fundar escuelas.

  8. Il Raffrescamento per Ventilazione

    DEFF Research Database (Denmark)

    Perino, Marco; Heiselberg, Per Kvols

    2016-01-01

    edifici, si è iniziato a rivolgere un crescente interesse verso la ventilazione, specie naturale, quale strumento per il raffrescamento passivo degli edifici. Le recenti evoluzioni del quadro normativo e legislativo, infatti, hanno portato nel cor-so del tempo a costruire edifici sempre più isolati...... termicamente e sempre più a tenuta d'aria. Tali misure hanno consentito indubbiamente di ridurre la domanda energetica per il riscaldamento invernale, ma hanno determinato delle crescenti problematiche di surriscaldamento dell'ambiente interno. Molti degli edifici ad alta efficienza energeti-ca di nuova......'aria per rimuovere i carichi ambiente e, dall'altro, incrementa lo scambio termico sul corpo umano, poiché aumenta la velocità locale dell'aria sulla pelle, modificando quindi e le sensazioni termiche. Permette, inoltre, di abbinare la funzione di controllo dell'IAQ con quella del controllo termico. Una...

  9. Anthropology in a postcolonial colony: Helen I. Safa's contribution to Puerto Rican ethnography.

    Science.gov (United States)

    Duany, Jorge

    2010-01-01

    This article assesses Helen I. Safa's legacy to anthropological thought in Puerto Rico. The first part of the article locates Safa's research on the Island within a long tradition of fieldwork by U.S. scholars since the early twentieth century. More recent research, conducted mostly by Puerto Rican women anthropologists and other social scientists, has expanded upon Safa's insights on gender and work. The second part of the essay analyzes Safa's major empirical work, The Urban Poor of Puerto Rico: A Study in Development and Inequality. Above all, this book helped overcome the theoretical impasse over the culture of poverty that characterized much of urban anthropology during the 1960s and 1970s. The article concludes with an appraisal of the relevance of Safa's work for the ethnography of contemporary Puerto Rico.

  10. American Self-Fashioning in Helen Foster Snow's My China Years.

    Directory of Open Access Journals (Sweden)

    Constance J. Post

    2013-11-01

    Full Text Available In My China Years: A Memoir, Helen Foster Snow draws upon her Puritan roots in fashioning an American self that affirms the power of an individual exemplary life, the ability to exercise free will amid struggle, an optimism borne of hope, and a way to represent failure and success. Self-fashioning, which Stephen Greenblatt attributes to the rise of an autonomous self in early modern Europe, is shaped by Snow as a distinctly American identity based on a secular Puritanism she found more congenial than the Puritanism of her ancestors on both sides of the Atlantic. The many resemblances noted by Snow between the Chinese Communist Army and seventeenth-century English Puritanism led her to interrogate Puritanism, both in its traditional form and its secularised variant. What emerges in the pages of My China Years is an attempt to fashion an American self by negotiating an old Puritanism with the new by way of a triangulation with China.

  11. In the path of destruction - eyewitness chronicles of Mount St. Helens

    Science.gov (United States)

    Waitt, Richard B.

    2015-01-01

    “The air had no oxygen, like being trapped underwater…I was being cremated, the pain unbearable.”-- Jim Scymanky“I was on my knees, my back to the hot wind. It blew me along, lifting my rear so I was up on my hands…It was hot but I didn’t feel burned—until I felt my ears curl.”—Mike HubbardA napping volcano blinked awake in March 1980. Two months later, the mountain roared. Author Richard Waitt was one of the first to arrive following the mountain’s early rumblings. A geologist with intimate knowledge of Mount St. Helens, Waitt delivers a detailed and accurate chronicle of events. The eruption story unfolds through unforgettable, riveting narratives—the heart of a masterful chronology that also delivers engrossing science, history, and journalism.

  12. Target diagnostics for commissioning the AWE HELEN Laser Facility 100 TW chirped pulse amplification beam

    Science.gov (United States)

    Eagleton, R. T.; Clark, E. L.; Davies, H. M.; Edwards, R. D.; Gales, S.; Girling, M. T.; Hoarty, D. J.; Hopps, N. W.; James, S. F.; Kopec, M. F.; Nolan, J. R.; Ryder, K.

    2006-10-01

    The capability of the HELEN laser at the Atomic Weapons Establishment Aldermaston has been enhanced by the addition of a short-pulse laser beam to augment the twin opposing nanosecond time scale beams. The short-pulse beam utilizes the chirped pulse amplification (CPA) technique and is capable of delivering up to 60J on target in a 500fs pulse, around 100TW, at the fundamental laser wavelength of 1.054μm. During the commissioning phase a number of diagnostic systems have been fielded, these include: x-ray pinhole imaging of the laser heated spot, charged particle time of flight, thermoluminescent dosimeter array, calibrated radiochromic film, and CR39 nuclear track detector. These diagnostic systems have been used to verify the performance of the CPA beam to achieve a focused intensity of around 1019Wcm-2 and to underwrite the facility radiological safety system.

  13. Constraints and conundrums resulting from ground-deformation measurements made during the 2004-2005 dome-building eruption of Mount St. Helens, Washington: Chapter 14 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

    Science.gov (United States)

    Dzurisin, Daniel; Lisowski, Michael; Poland, Michael P.; Sherrod, David R.; LaHusen, Richard G.; Sherrod, David R.; Scott, William E.; Stauffer, Peter H.

    2008-01-01

    A prolonged period of dome growth at Mount St. Helens starting in September-October 2004 provides an opportunity to study how the volcano deforms before, during, and after an eruption by using modern instruments and techniques, such as global positioning system (GPS) receivers and interferometric synthetic aperture radar (InSAR), together with more traditional ones, including tiltmeters, triangulation, photogrammetry, and time-lapse photography. No precursory ground deformation was detected by campaign GPS measurements made in 2000 and 2003, nor by a continuous GPS station (JRO1) operating ~9 km to the north-northwest of the vent area since May 1997. However, JRO1 abruptly began moving downward and southward, toward a source centered about 8 km beneath the volcano, concurrently with the start of a shallow earthquake swarm on September 23, 2004. The JRO1 velocity slowed from ~0.5 millimeters per day (mm/d) in late September–early October 2004 until spring 2005. Thereafter, it was essentially constant at ~0.04 mm/d through December 2005. In similar fashion, the growth rate of the welt on the south crater floor slowed from 8.9 m3/s during October 4–11 to 6.4 m3/s during October 11-13, 2004; this trend continued after emergence of the first lava spine on October 11. The volumetric extrusion rate decreased from 5.9 m3/s during October 13-November 4, 2004, to 2.5 m3/s during December 11, 2004-January 3, 2005, and for the remainder of 2005, it was in the range 2.0-0.7 m3/s. Fifteen continuous GPS stations, installed soon after the eruption began, showed radially inward and downward ground motions through December 2005. Likewise, InSAR observations spanning the first year of the eruption indicate broad subsidence centered near the vent. Model-derived estimates of source-volume decrease from September 23, 2004, to October 31, 2006, are 16-24×106 m3, substantially less than the volume erupted during the same period (87×106 m3 through October 21, 2006). The discrepancy

  14. Attenuation and scattering tomography of the deep plumbing system of Mount St. Helens

    Science.gov (United States)

    De Siena, Luca; Thomas, Christine; Waite, Greg P.; Moran, Seth C.; Klemme, Stefan

    2014-01-01

    We present a combined 3-D P wave attenuation, 2-D S coda attenuation, and 3-D S coda scattering tomography model of fluid pathways, feeding systems, and sediments below Mount St. Helens (MSH) volcano between depths of 0 and 18 km. High-scattering and high-attenuation shallow anomalies are indicative of magma and fluid-rich zones within and below the volcanic edifice down to 6 km depth, where a high-scattering body outlines the top of deeper aseismic velocity anomalies. Both the volcanic edifice and these structures induce a combination of strong scattering and attenuation on any seismic wavefield, particularly those recorded on the northern and eastern flanks of the volcanic cone. North of the cone between depths of 0 and 10 km, a low-velocity, high-scattering, and high-attenuation north-south trending trough is attributed to thick piles of Tertiary marine sediments within the St. Helens Seismic Zone. A laterally extended 3-D scattering contrast at depths of 10 to 14 km is related to the boundary between upper and lower crust and caused in our interpretation by the large-scale interaction of the Siletz terrane with the Cascade arc crust. This contrast presents a low-scattering, 4–6 km2 “hole” under the northeastern flank of the volcano. We infer that this section represents the main path of magma ascent from depths greater than 6 km at MSH, with a small north-east shift in the lower plumbing system of the volcano. We conclude that combinations of different nonstandard tomographic methods, leading toward full-waveform tomography, represent the future of seismic volcano imaging.

  15. Vapor transfer prior to the October 2004 eruption of Mount St. Helens, Washington

    Science.gov (United States)

    Kent, A.J.R.; Blundy, J.; Cashman, K.V.; Copper, K.M.; Donnelly, C.; Pallister, J.S.; Reagan, M.; Rowe, M.C.; Thornber, C.R.

    2007-01-01

    Dome lavas from the 2004 eruption of Mount St. Helens show elevated Li contents in plagioclase phenocrysts at the onset of dome growth in October 2004. These cannot be explained by variations in plagioclase-melt partitioning, but require elevated Li contents in coexisting melt, a fact confirmed by measurements of Li contents as high as 207 ??g/g in coexisting melt inclusions. Similar Li enrichment has been observed in material erupted prior to and during the climactic May 1980 eruption, and is likewise best explained via pre-eruptive transfer of an exsolved alkali-rich vapor phase derived from deeper within the magma transport system. Unlike 1980, however, high Li samples from 2004 show no evidence of excess (210Pb)/(226 Ra), implying that measurable Li enrichments may occur despite significant differences in the timing and/or extent of magmatic degassing. Diffusion modeling shows that Li enrichment occurred within -1 yr before eruption, and that magma remained Li enriched until immediately before eruption and cooling. This short flux time and the very high Li contents in ash produced by phreatomagmatic activity prior to the onset of dome extrusion suggest that vapor transfer and accumulation were associated with initiation of the current eruption. Overall, observation of a high Li signature in both 1980 and 2004 dacites indicates that Li enrichment may be a relatively common phenomenon, and may prove useful for petrologic monitoring of Mount St. Helens and other silicic volcanoes. Lithium diffusion is also sufficiently rapid to constrain vapor transfer on similar time scales to short-lived radionuclides. ?? 2007 Geological Society of America.

  16. A continuous record of intereruption velocity change at Mount St. Helens from coda wave interferometry

    Science.gov (United States)

    Hotovec-Ellis, Alicia J.; Gomberg, Joan S.; Vidale, John; Creager, Ken C.

    2014-01-01

    In September 2004, Mount St. Helens volcano erupted after nearly 18 years of quiescence. However, it is unclear from the limited geophysical observations when or if the magma chamber replenished following the 1980–1986 eruptions in the years before the 2004–2008 extrusive eruption. We use coda wave interferometry with repeating earthquakes to measure small changes in the velocity structure of Mount St. Helens volcano that might indicate magmatic intrusion. By combining observations of relative velocity changes from many closely located earthquake sources, we solve for a continuous function of velocity changes with time. We find that seasonal effects dominate the relative velocity changes. Seismicity rates and repeating earthquake occurrence also vary seasonally; therefore, velocity changes and seismicity are likely modulated by snow loading, fluid saturation, and/or changes in groundwater level. We estimate hydrologic effects impart stress changes on the order of tens of kilopascals within the upper 4 km, resulting in annual velocity variations of 0.5 to 1%. The largest nonseasonal change is a decrease in velocity at the time of the deep Mw = 6.8 Nisqually earthquake. We find no systematic velocity changes during the most likely times of intrusions, consistent with a lack of observable surface deformation. We conclude that if replenishing intrusions occurred, they did not alter seismic velocities where this technique is sensitive due to either their small size or the finite compressibility of the magma chamber. We interpret the observed velocity changes and shallow seasonal seismicity as a response to small stress changes in a shallow, pressurized system.

  17. Magma Intrusion at Mount St. Helens, Washington, from Temporal Gravity Variations

    Science.gov (United States)

    Battaglia, Maurizio; Lisowski, Mike; Dzursin, Dan; Poland, Mike; Schilling, Steve; Diefenbach, Angie; Wynn, Jeff

    2017-04-01

    Mount St. Helens is a stratovolcano in the Pacific Northwest region of the United States, best known for its explosive eruption in May 1980 - deadliest and most economically destructive volcanic event in US history. Volcanic activity renewed in September 2004 with a dome forming eruption that lasted until 2008. This eruption was surprising because the preceding four years had seen the fewest earthquakes and no significant deformation since the 1980-86 eruption ended. After the dome forming eruption ended in July 2008, the volcano seismic activity and deformation went back to background values. Time-dependent gravimetric measurements can detect subsurface processes long before magma flow leads to earthquakes or other eruption precursors. A high-precision gravity monitoring network (referenced to a base station 36 km NW of the volcano) was set up at Mount St Helens in 2010. Measurements were made at 12 sites on the volcano (at altitudes between 1200 and 2350 m a.s.l.) and 4 sites far afield during the summers of 2010, 2012, and 2014. The repeated gravity measurements revealed an increase in gravity between 2010 and 2014. Positive residual gravity anomalies remained after accounting for changes in surface height, in the Crater Glacier, and in the shallow hydrothermal aquifer. The pattern of residual gravity changes, with a maximum of 57±12 μGal from 2010 to 2014, is radially symmetric and centered on the 2004-08 lava dome. Inversion of the residual gravity signal points to a source 2.5-4 km beneath the crater floor (i.e., in the magma conduit that fed eruptions in 1980-86 and 2004-08). We attribute the gravity increase to re-inflation of the magma plumbing system following the 2004-8 eruption. Recent seismic activity (e.g., the seismic swarm of March 2016) has been interpreted as a response to the slow recharging of the volcano magma chamber.

  18. Groundmass crystallization of Mount St. Helens dacite, 1980 1986: a tool for interpreting shallow magmatic processes

    Science.gov (United States)

    Cashman, Katharine V.

    1992-02-01

    The 1980 1986 eruption of Mount St. Helens volcano provides an unprecedented opportunity to observe the evolution of a silicic magma system over a short time scale. Groundmass plagioclase size measurements are coupled with measured changes in matrix glass, plagioclase and Fe-Ti oxide chemistry to document increasing groundmass crystallinity, and thus to better constrain proposed physical models of the post-May 18, 1980 magmatic reservoir. Measurements of plagioclase microlite and microphenocryst sizes demonstrate that relatively rapid growth (approximately 10-9 cm/s) of groundmass plagioclase occurred immediately subsequent to May 18. Relatively rapid plagioclase growth continued through the end of 1980 at an average rate of 3x10-11 cm/s; plagioclase growth rates then decreased to post-1980 seismicity (Endo et al. 1990), although it does not explain the experimental data of Hill and Rutherford (1989) on the growth rate of amphibole reaction rims. Textural measurements on Mount St. Helens dacite can also be used to evaluate crystallization kinetics in silicic magmas, systems for which experimental data is almost non-existent. Plagioclase growth rates are 5 10 times slower than estimated plagioclase growth rates in basaltic systems, a result consistent with the higher viscosity of a more silicic melt. Furthermore, patterns of textural change (both average crystal size and number density) are similar to those observed during the 1984 Mauna Loa eruption by Lipman and Banks (1987), suggesting that the only modification to the crystallization behavior of plagioclase required in extrapolation from basaltic systems is a moderate decrease in rates, such that the rate of crystallization scales with the melt viscosity.

  19. Catalog of Mount St. Helens 2004-2007 Dome Samples with Major- and Trace-Element Chemistry

    Science.gov (United States)

    Thornber, Carl R.; Pallister, John S.; Rowe, Michael C.; McConnell, Siobhan; Herriott, Trystan M.; Eckberg, Alison; Stokes, Winston C.; Cornelius, Diane Johnson; Conrey, Richard M.; Hannah, Tammy; Taggart, Joseph E.; Adams, Monique; Lamothe, Paul J.; Budahn, James R.; Knaack, Charles M.

    2008-01-01

    Sampling and analysis of eruptive products at Mount St. Helens is an integral part of volcano monitoring efforts conducted by the U.S. Geological Survey?s Cascades Volcano Observatory (CVO). The objective of our eruption sampling program is to enable petrological assessments of pre-eruptive magmatic conditions, critical for ascertaining mechanisms for eruption triggering and forecasting potential changes in eruption behavior. This report provides a catalog of near-vent lithic debris and new dome-lava collected during 34 intra-crater sampling forays throughout the October 2004 to October 2007 (2004?7) eruptive interval at Mount St. Helens. In addition, we present comprehensive bulk-rock geochemistry for a time-series of representative (2004?7) eruption products. This data, along with that in a companion report on Mount St. Helens 2004 to 2006 tephra by Rowe and others (2008), are presented in support of the contents of the U.S. Geological Survey Professional Paper 1750 (Sherrod and others, eds., 2008). Readers are referred to appropriate chapters in USGS Professional Paper 1750 for detailed narratives of eruptive activity during this time period and for interpretations of sample characteristics and geochemical data. The suite of rock samples related to the 2004?7 eruption of Mount St. Helens and presented in this catalog are archived at the David A. Johnson Cascades Volcano Observatory, Vancouver, Wash. The Mount St. Helens 2004?7 Dome Sample Catalogue with major- and trace-element geochemistry is tabulated in 3 worksheets of the accompanying Microsoft Excel file, of2008-1130.xls. Table 1 provides location and sampling information. Table 2 presents sample descriptions. In table 3, bulk-rock major and trace-element geochemistry is listed for 44 eruption-related samples with intra-laboratory replicate analyses of 19 dacite lava samples. A brief overview of the collection methods and lithology of dome samples is given below as an aid to deciphering the dome sample

  20. Large-amplitude traveling ionospheric distrubance produced by the May 18, 1980, explosion of Mount St. Helens

    Energy Technology Data Exchange (ETDEWEB)

    Roberts, D.H.; Klobuchar, J.A.; Fougere, P.F.; Hendrickson, D.H.

    1982-08-01

    A remarkable long-lived, large-scale traveling ionospheric disturbance (TID), excited by the May 18, 1980, explosion of Mount St. Helens, has been detected in total electron content monitor data. Oscillatory perturbations in the electron column density of the ionosphere with amplitudes about 10% of the nominal daytime content were detected at three stations whose ionospheric penetration points lie between 1610 and 1890 km from Mount St. Helens. Smaller perturbations were detected at five of six additional stations between 3760 and 4950 km away. The period of the TID increased linearly with great-circle distance from Mount St. Helens, ranging from roughly-equal37 min at the nearest station to roughly-equal116 min at the most distant one. The TID persisted for at least four cycles at the three close stations and three cycles at the more distant stations and was qualitatively similar to TID's produced by the low-altitude thermonuclear detonations of the 1960's. The disturbance front of this TID accelerated from an average velocity of roughly-equal350 m/s between Mt. St. Helens and the close stations to an average velocity of roughly-equal550 m/s to the more distant ones.A model based on the free wave response of an isothermal atmosphere to a point disturbance provides a good fit to the data at the three closest stations, but no such model can account for all of the data. Modeling of the long-distance behavior of the Mount St. Helens TID in terms of upper-atmosphere guided gravity waves is complicated by the requirement of exciting them by a ground-level explosion. There was no evidence for a strong supersonic shock wave in the ionosphere. As a result, the Mount St. Helens disturbance may prove to be a cleaner test of detailed theories of the point excitation and propagation of gravity waves in a realistic atmosphere than were TID's excited by thermonuclear weapons.

  1. High-resolution digital elevation model of Mount St. Helens crater and upper North Fork Toutle River basin, Washington, based on an airborne lidar survey of September 2009

    Science.gov (United States)

    Mosbrucker, Adam

    2014-01-01

    The lateral blast, debris avalanche, and lahars of the May 18th, 1980, eruption of Mount St. Helens, Washington, dramatically altered the surrounding landscape. Lava domes were extruded during the subsequent eruptive periods of 1980–1986 and 2004–2008. More than three decades after the emplacement of the 1980 debris avalanche, high sediment production persists in the North Fork Toutle River basin, which drains the northern flank of the volcano. Because this sediment increases the risk of flooding to downstream communities on the Toutle and Cowlitz Rivers, the U.S. Army Corps of Engineers (USACE), under the direction of Congress to maintain an authorized level of flood protection, built a sediment retention structure on the North Fork Toutle River in 1989 to help reduce this risk and to prevent sediment from clogging the shipping channel of the Columbia River. From September 16–20, 2009, Watershed Sciences, Inc., under contract to USACE, collected high-precision airborne lidar (light detection and ranging) data that cover 214 square kilometers (83 square miles) of Mount St. Helens and the upper North Fork Toutle River basin from the sediment retention structure to the volcano's crater. These data provide a digital dataset of the ground surface, including beneath forest cover. Such remotely sensed data can be used to develop sediment budgets and models of sediment erosion, transport, and deposition. The U.S. Geological Survey (USGS) used these lidar data to develop digital elevation models (DEMs) of the study area. DEMs are fundamental to monitoring natural hazards and studying volcanic landforms, fluvial and glacial geomorphology, and surface geology. Watershed Sciences, Inc., provided files in the LASer (LAS) format containing laser returns that had been filtered, classified, and georeferenced. The USGS produced a hydro-flattened DEM from ground-classified points at Castle, Coldwater, and Spirit Lakes. Final results averaged about five laser last

  2. Zwischen Aufbegehren und bürgerlicher Rolle: die Lebensgemeinschaft von Helene Lange und Gertrud Bäumer The partnership of Helene Lange und Gertrud Bäumer: a both rebellious and domestic way of life

    Directory of Open Access Journals (Sweden)

    Mechthilde Vahsen

    2001-07-01

    Full Text Available Die Forschungsarbeiten analysieren private weibliche Beziehungsformen und ihre Bedeutung für die erste deutsche Frauenbewegung. Im Zentrum der Betrachtung steht eines der wichtigsten Führungspaare dieser Zeit: Helene Lange und Gertrud Bäumer. Die Dissertation von Göttert liefert einen wichtigen Beitrag zur Netzwerkforschung, Schaser beschäftigt sich in ihrer innovativen Studie mit der Lebensgemeinschaft der beiden Frauen, die sie in die frauenbewegten und politischen Kontexte einordnet.These studies analyse the private aspects of female relationship and their significance for the first wave of the German women’s movement. The focus is on the leading couple at that particular time: Helene Lange and Gertrud Bäumer. The dissertation by Göttert contributes an important piece to the network research, whereas Schaser describes in her innovative study the partnership of the two women, which is strongly related to the feminist and political context.

  3. Seismicity and infrasound associated with explosions at Mount St. Helens, 2004-2005: Chapter 6 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

    Science.gov (United States)

    Moran, Seth C.; McChesney, Patrick J.; Lockhart, Andrew B.; Sherrod, David R.; Scott, William E.; Stauffer, Peter H.

    2008-01-01

    Six explosions occurred during 2004-5 in association with renewed eruptive activity at Mount St. Helens, Washington. Of four explosions in October 2004, none had precursory seismicity and two had explosion-related seismic tremor that marked the end of the explosion. However, seismicity levels dropped following each of the October explosions, providing the primary instrumental means for explosion detection during the initial vent-clearing phase. In contrast, explosions on January 16 and March 8, 2005, produced noticeable seismicity in the form of explosion-related tremor, infrasonic signals, and, in the case of the March 8 explosion, an increase in event size ~2 hours before the explosion. In both 2005 cases seismic tremor appeared before any infrasonic signals and was best recorded on stations located within the crater. These explosions demonstrated that reliable explosion detection at volcanoes like Mount St. Helens requires seismic stations within 1-2 km of the vent and stations with multiple acoustic sensors.

  4. Petrology of the 2004-2006 Mount St. Helens lava dome -- implications for magmatic plumbing and eruption triggering: Chapter 30 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

    Science.gov (United States)

    Pallister, John S.; Thornber, Carl R.; Cashman, Katharine V.; Clynne, Michael A.; Lowers, Heather; Mandeville, Charles W.; Brownfield, Isabelle K.; Meeker, Gregory P.; Sherrod, David R.; Scott, William E.; Stauffer, Peter H.

    2008-01-01

    Eighteen years after dome-forming eruptions ended in 1986, and with little warning, Mount St. Helens began to erupt again in October 2004. During the ensuing two years, the volcano extruded more than 80×106 m3 of gas-poor, crystal-rich dacite lava. The 2004-6 dacite is remarkably uniform in bulk-rock composition and, at 65 percent SiO2

  5. Chlorine degassing during the lava dome-building eruption of Mount St. Helens, 2004-2005: Chapter 27 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

    Science.gov (United States)

    Edmonds, Marie; McGee, Kenneth A.; Doukas, Michael P.; Sherrod, David R.; Scott, William E.; Stauffer, Peter H.

    2008-01-01

    Remote measurements of volcanic gases from the Mount St. Helens lava dome were carried out using OpenPath Fourier-Transform Infrared spectroscopy on August 31, 2005. Measurements were performed at a site ~1 km from the lava dome, which was used as a source of IR radiation. On average, during the period of measurement, the volcanic gas contained 99 mol percent H2

  6. Multiphase-flow numerical modeling of the 18 May 1980 lateral blast at Mount St. Helens, USA

    Science.gov (United States)

    Ongaro, T.E.; Widiwijayanti, C.; Clarke, A.B.; Voight, B.; Neri, A.

    2011-01-01

    Volcanic lateral blasts are among the most spectacular and devastating of natural phenomena, but their dynamics are still poorly understood. Here we investigate the best documented and most controversial blast at Mount St. Helens (Washington State, United States), on 18 May 1980. By means of three-dimensional multiphase numerical simulations we demonstrate that the blast front propagation, fi nal runout, and damage can be explained by the emplacement of an unsteady, stratifi ed pyroclastic density current, controlled by gravity and terrain morphology. Such an interpretation is quantitatively supported by large-scale observations at Mount St. Helens and will infl uence the defi nition and predictive mapping of hazards on blast-dangerous volcanoes worldwide. ?? 2011 Geological Society of America.

  7. Kuidas muuta matemaatika õpilastele põnevaks / Helen Kaasik, Kadri Hiob, Kärt Toomel, Lembit Pallas ; intervjueeris Raivo Juurak

    Index Scriptorium Estoniae

    2010-01-01

    Vestlusringis osalesid Helen Kaasik Tallinna reaalkoolist, Kadri Hiob Rahumäe põhikoolist, Kärt Toomel Tallinna kunstigümnaasiumist („Noored kooli” programmist) ning Lembit Pallas Tabasalu ühisgümnaasiumist. Leiti, et vaja on senisest lihtsamalt sõnastatud õpikuid, eri raskusastmega ülesannete brošüüre ja tunduvalt väiksema mahuga ainekava

  8. Kas olete mõelnud välismaal õpetamisele? / Edward Kess, Helen Oppar, Sergei Ptšjolkin ... [jt.

    Index Scriptorium Estoniae

    2011-01-01

    Küsimusele vastavad Tallinna 37. keskkooli eesti keele ja kirjanduse õpetaja Edward Kess, Varstu keskkooli loodusainete õpetaja Helen Oppar, Tallinna Mustjõe gümnaasiumi füüsikaõpetaja Sergei Ptšjolkin, Sürgavere põhikooli muusikaõpetaja Helve Tähis, Nõo reaalgümnaasiumi inglise keele õpetaja Tiina Tuuling ning Rahumäe põhikooli matemaatikaõpetaja Kadri Hiob

  9. Far-field beam shaping through static wavefront correction in the near field on the HELEN laser

    Science.gov (United States)

    Bett, Thomas H.; Hopps, N. W.; Nolan, J. R.

    2002-10-01

    This report discusses the design and installation of a phase optic inserted in the near field of the HELEN high power glass laser. The element is designed to shape the intensity distribution at the focal spot of the laser to produce an increase in the peak intensity through correction of static and thermally induced wavefront errors on the beam. A phase element has been fabricated commercially using a magneto-rheological finishing tool. Test data is presented.

  10. AN ANALYSIS OF “WORK OF MIRACLES IN HELEN KELLER” FROM SOCIAL PERSPECTIVE AND MORAL VALUE

    Directory of Open Access Journals (Sweden)

    Ardayati .

    2016-04-01

    Full Text Available This study was carried out based on the problems faced by the writer as a English teacher. Most of students have no motivation when they found difficulties especially in learning English. Furthermore, the reasons why the researcher used The Miracle worker film to be investigated: Firstly, this movie was made based on the true story. Secondly, it transferred moral values. Thirdly, it told efforts of a teacher, Annie Sullivan. The research problems were “What are social perspective of Helen Keller and what are moral values found in The Miracle Worker film?” The study employed a qualitative research which was intended to analyze Helen Keller’s social life, social life at the society illustrated in that movie, and moral values found in the movie. The research instrument was investigator triangulation which referred to the use of more than one audience in the field to gather and interpret data. In conclusion the Miracle Worker was an inspirational movie because it told about a blind deaf woman to reach her goals. It delivered Helen Keller’s experience detailing her early life. Moral values of the film were motivation, kindness, responsibility, honestly, empathy, and respect.Key words: Social perspective, the Miracle worker, moral value

  11. Automatic Scanning Detection for Characterization of Dome-Related Seismic Swarms at Mount St. Helens and their Evolution Through Time

    Science.gov (United States)

    MacCarthy, J. K.; Rowe, C. A.

    2005-12-01

    Using the waveform data for Mount St. Helens from October 2004 through April, 2005 available from the IRIS DMC, as well as a special data set including the accelerometer that recorded eleven days of activity on the whaleback dome of St. Helens during February, 2005, we have modified a waveform cross-correlation algorithm previously applied for event clustering and repicking into a correlation scanning detector. This tool is being developed for implementation during routine volcano monitoring, as a means of identifying, characterizing and locating repeating swarm events and quantifying their seismic energy release. Application of the scanning detector to St. Helens data reveals stable swarm-type activity over periods with cross-correlation values exceeding 0.8 for 25 days, within which the repeating events slowly evolve over time. Waveforms show high correlation when as much as 60 s of coda is included in the correlation, suggesting very stable source and path characteristics. We present analysis of waveform evolution and event location stability as determined through the detection and automatic repicking and relocation of correlated events. Evolving seismic waveform characteristics are compared to available information about the ongoing eruption sequence to investigate the correspondence among such observables as deformation, volatile flux (both magmagenic and meteoric), estimated dome volume or magma flux and overall energy partitioning. The correlation-detection tool shows promise for real-time implementation, with the potential to greatly reduce analyst workload and augment on-the-fly characterizations already provided by such routine monitoring tools as RSAM and SSAM.

  12. Geologic Map of the Saint Helens Quadrangle, Columbia County, Oregon, and Clark and Cowlitz Counties, Washington

    Science.gov (United States)

    Evarts, Russell C.

    2004-01-01

    The Saint Helens 7.5' quadrangle is situated in the Puget-Willamette Lowland approximately 35 km north Portland, Oregon. The lowland, which extends from Puget Sound into west-central Oregon, is a complex structural and topographic trough that lies between the Coast Range and the Cascade Range. Since late Eocene time, Cascade Range has been the locus of a discontinuously active volcanic arc associated with underthrusting of oceanic lithosphere beneath the North American continent along the Cascadia Subduction Zone. The Coast Range occupies the forearc position within the Cascadia arc-trench system and consists of a complex assemblage of Eocene to Miocene volcanic and marine sedimentary rocks. The Saint Helens quadrangle lies in the northern part of the Portland Basin, a roughly 2000-km2 topographic and structural depression. It is the northernmost of several sediment-filled structural basins that collectively constitute the Willamette Valley segment of the Puget-Willamette Lowland (Beeson and others, 1989; Swanson and others, 1993; Yeats and others, 1996). The rhomboidal basin is approximately 70 km long and 30 km wide, with its long dimension oriented northwest. The Columbia River flows west and north through the Portland Basin at an elevation near sea level and exits through a confined bedrock valley less than 2.5 km wide about 16 km north of Saint Helens. The flanks of the basin consist of Eocene through Miocene volcanic and sedimentary rocks that rise to elevations exceeding 2000 ft (610 m). Seismic-reflection profiles (L.M. Liberty, written commun., 2003) and lithologic logs of water wells (Swanson and others, 1993; Mabey and Madin, 1995) indicate that as much as 550 m of late Miocene and younger sediments have accumulated in the deepest part of the basin near Vancouver. Most of this basin-fill material was carried in from the east by the Columbia River but contributions from streams draining the adjacent highlands are locally important. The Portland Basin has

  13. Environmental Impact of the Helen, Research, and Chicago Mercury Mines on Water, Sediment, and Biota in the Upper Dry Creek Watershed, Lake County, California

    Science.gov (United States)

    Rytuba, James J.; Hothem, Roger L.; May, Jason T.; Kim, Christopher S.; Lawler, David; Goldstein, Daniel; Brussee, Brianne E.

    2009-01-01

    The Helen, Research, and Chicago mercury (Hg) deposits are among the youngest Hg deposits in the Coast Range Hg mineral belt and are located in the southwestern part of the Clear Lake volcanic field in Lake County, California. The mine workings and tailings are located in the headwaters of Dry Creek. The Helen Hg mine is the largest mine in the watershed having produced about 7,600 flasks of Hg. The Chicago and Research Hg mines produced only a small amount of Hg, less than 30 flasks. Waste rock and tailings have eroded from the mines, and mine drainage from the Helen and Research mines contributes Hg-enriched mine wastes to the headwaters of Dry Creek and contaminate the creek further downstream. The mines are located on federal land managed by the U.S. Bureau of Land Management (USBLM). The USBLM requested that the U.S. Geological Survey (USGS) measure and characterize Hg and geochemical constituents in tailings, sediment, water, and biota at the Helen, Research, and Chicago mines and in Dry Creek. This report is made in response to the USBLM request to conduct a Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA - Removal Site Investigation (RSI). The RSI applies to removal of Hg-contaminated mine waste from the Helen, Research, and Chicago mines as a means of reducing Hg transport to Dry Creek. This report summarizes data obtained from field sampling of mine tailings, waste rock, sediment, and water at the Helen, Research, and Chicago mines on April 19, 2001, during a storm event. Further sampling of water, sediment, and biota at the Helen mine area and the upper part of Dry Creek was completed on July 15, 2003, during low-flow conditions. Our results permit a preliminary assessment of the mining sources of Hg and associated chemical constituents that could elevate levels of monomethyl Hg (MMeHg) in the water, sediment, and biota that are impacted by historic mining.

  14. Leaching characteristics of ash from the May 18, 1980, eruption of Mount St. Helens volcano, Washington

    Science.gov (United States)

    Smith, D. B.; Zielinski, R. A.; Taylor, H. E.; Sawyer, M. B.

    1983-06-01

    Leaching of freshly erupted air-fall ash, unaffected by rain, from the May 18, 1980, eruption of Mount St. Helens volcano, Washington, shows that Ca2+, Na+, Mg2+, SO{4/2-}, and Cl- are the predominant chemical species released on first exposure of the ash to water. Extremely high correlation of Ca with SO4 and Na with Cl in water leachates suggests the presence of CaSO4 and NaCl salts on the ash. The amount of water soluble material on ash increases with distance from source and with the weight fraction of small (less than 63 micrometers) ash particles of high-surface area. This suggests that surface reactions such as adsorption are responsible for concentrating the soluble material. CaSO4, NaCl, and other salts are probably formed as microscopic crystals in the high-temperature core of the eruption column and are then adsorbed by silicate ash particles. The environmentally important elements Zn, Cu, Cd, F. Pb, and Ba are released by a water leach in concentrations which could pose short-term hazards to some forms of aquatic life. However, calculated concentrations are based on a water-to-ash ratio of 4:1 or less, which is probably an underestimation of the regionally operative ratio. A subsequent leach of ash by warm alkaline solution shows dramatic increases, in the amount of dissolved SiO2, U, and V, which are probably caused by increased dissolution of the glassy component of ash. Glass dissolution by alkaline ground water is a mechanism for providing these three elements to sedimentary traps where they may coaccumulate as uraniferous silica or U-V minerals. Leaching characteristics of ash from Mount St. Helens are comparable to characteristics of ash of similar composition from volcanoes in Guatemala. Ashes from each locality show similar ions predominating for a given leachate and similar fractions of a particular element in the ash removed on contact with the leach solution.

  15. Rockslide-debris avalanche of May 18, 1980, Mount St. Helens Volcano, Washington

    Science.gov (United States)

    Glicken, Harry

    1996-01-01

    This report provides a detailed picture of the rockslide-debris avalanche of the May 18, 1980, eruption of Mount St. Helens volcano. It provides a characterization of the deposit, a reinterpretation of the details of the first minutes of the eruption of May 18, and insight into the transport mechanism of the mass movement. Details of the rockslide event, as revealed by eyewitness photographs, are correlated with features of the deposit. The photographs show three slide blocks in the rockslide movement. Slide block I was triggered by a magnitude 5.1 earthquake at 8:32 a.m. Pacific Daylight Time (P.D.T.). An exploding cryptodome burst through slide block II to produce the 'blast surge.' Slide block III consisted of many discrete failures that were carried out in continuing pyroclastic currents generated from the exploding cryptodome. The cryptodome continued to depressurize after slide block III, producing a blast deposit that rests on top of the debris-avalanche deposit. The hummocky 2.5 cubic kilometer debris-avalanche deposit consists of block facies (pieces of the pre-eruption Mount St. Helens transported relatively intact) and matrix facies (a mixture of rocks from the old mountain and cryptodome dacite). Block facies is divided into five lithologic units. Matrix facies was derived from the explosively generated current of slide block III as well as from disaggregation and mixing of debris-avalanche blocks. The mean density of the old cone was measured to be abut 20 percent greater than the mean density of the avalanche deposit. Density in the deposit does not decrease with distance which suggests that debris-avalanche blocks were dilated at the mountain, rather than during transport. Various grain-size parameters that show that clast size converges about a mean with distance suggest mixing during transport. The debris-avalanche flow can be considered a grain flow, where particles -- either debris-avalanche blocks or the clasts within the blocks -- collided and

  16. Ambient noise tomography across Mount St. Helens using a dense seismic array

    KAUST Repository

    Wang, Yadong

    2017-05-08

    We investigated upper crustal structure with data from a dense seismic array deployed around Mount St. Helens for 2 weeks in the summer of 2014. Interstation cross correlations of ambient seismic noise data from the array were obtained, and clear fundamental mode Rayleigh waves were observed between 2.5 and 5 s periods. In addition, higher-mode signals were observed around 2 s period. Frequency-time analysis was applied to measure fundamental mode Rayleigh wave phase velocities, which were used to invert for 2-D phase velocity maps. An azimuth-dependent traveltime correction was implemented to mitigate potential biases introduced due to an inhomogeneous noise source distribution. Reliable phase velocity maps were only obtained between 3 and 4 s periods due to limitations imposed by the array aperture and higher-mode contamination. The phase velocity tomography results, which are sensitive to structure shallower than 6 km depth, reveal an ~10–15% low-velocity anomaly centered beneath the volcanic edifice and peripheral high-velocity anomalies that likely correspond to cooled igneous intrusions. We suggest that the low-velocity anomaly reflects the high-porosity mixture of lava and ash deposits near the surface of the edifice, a highly fractured magmatic conduit and hydrothermal system beneath the volcano, and possibly a small contribution from silicate melt.

  17. Mount St. Helens Quick Response Damage Assessment Using High-Altitude Infrared Photography

    Science.gov (United States)

    Hinkle, Richard E.; Prill, James C.; Pruitt, John R.

    1981-11-01

    After the destructive volcanic eruption of Mount St. Helens on May 18, 1980, there was a need for a quick response damage assessment. Timeliness of the information was emphasized because of the need to immediately devise land man-agement plans for timber sale operations, rehabilitation efforts, fire protection activities, and areas to be preserved. High-altitude color-infrared photography was collected during May and June by the National Aeronautics and Space Administra-tion (NASA) Ames Research Center (ARC). Interpretation of the photography plus a helicopter trip into the area provided the basis for the construction of 58 map-registered overlays within a 3-week period. These overlays depicted in detail the damage to timber resources, the transportation network, and the watershed. Using the 14 timber loss overlays, U.S. Department of Agriculture (USDA) Forest Service personnel were able to digitize cells depicting ownership, degree of damage, and the preeruption cover classes. These digitized data provided such informa-tion as the total area affected within and outside the national forest, total timber acreage destroyed and damaged, the sizes of timber destroyed, and the acreage of barren land both before and after the eruption. The hydrology and transportation overlays provided information for an alert system to locate areas needing in-depth studies. These problem areas were then studied in detail on low-altitude color photography so that potential erosion sites could receive preventive treatments and essential access roads needed for fire control and timber salvage could be repaired.

  18. Aircraft sampling of the sulfate layer near the tropopause following the eruption of Mount St. Helens

    Science.gov (United States)

    Lezberg, E. A.; Otterson, D. A.; Roberts, W. K.; Papathakos, L. C.

    1982-01-01

    Twenty filter sampling flights of the NASA Lewis F-106 aircraft were conducted in the Great Lakes region between June 4 and August 8, 1980, following the major eruption of Mount St. Helens, Washington on May 18. The IPC-1478 filters were exposed over an altitude range spanning the local tropopause. Quarter sections were analyzed for sulfate and nitrate by ion chromatography and selected samples were analyzed for chloride by selective ion electrode. Trace elements were searched by X-ray fluorescence analysis. A filter sample taken above the tropopause on June 5 indicated a sulfate level of 50 times the baseline measurements. Subsequent measurements over a period of 2 months showed an initial dropoff and formation of a persistent layer of sulfate above the tropopause with a concentration of 10 to 18 times previously measured background-levels. Concentrations of nitrate above the tropopause exhibited considerable variability and some enhancement compared with previously measured concentration levels. It is suggested that the source of the nitrate may also be volcanic as evidenced by its temporal relationship to the sulfate concentration changes. Based on the null results of X-ray fluorescence measurements, there is no evidence of ash particle concentrations greater than 3.4 microns g/cubic m persisting in the layer above the tropopause after the second transit of the cloud.

  19. Inpatient management of borderline personality disorder at Helen Joseph Hospital, Johannesburg

    Directory of Open Access Journals (Sweden)

    Laila Paruk

    2016-06-01

    Full Text Available Objective: The aim of this report was to establish a profile of patients with borderline personality disorder (BPD admitted to the acute inpatient psychiatric assessment unit at the Helen Joseph Hospital, in Johannesburg, over the course of 1 year. Methods: A retrospective record review was conducted to investigate the prevalence, demographics, reasons for admission, treatment, length of stay and follow-up of a group of inpatients during 2010 with a diagnosis of BPD, based on DSM-IV-TR diagnostic criteria, allocated on discharge. Results: Considering evidence retrospectively, the quality of the BPD diagnosis allocated appeared adequate. Statistical analysis revealed findings mainly in keeping with other reports, for example, that patients with BPD are above-average users of resources who make significantly more use of emergency services and that they generally do not adhere well to their scheduled outpatient follow-up arrangements. The longer average length of inpatient stay of this group with BPD, however, exceeded the typically brief period generally recommended for acute inpatient containment and emergency intervention. Conclusion: Implementation of targeted prevention and early intervention strategies, based on systematised programmes such as dialectical behavioural therapy and mentalisation based therapy, may be useful in addressing these problems experienced with integrating the in- and outpatient management of BPD. Keywords: Borderline personality; inpatient; acute

  20. Emplacement of a silicic lava dome through a crater glacier: Mount St Helens, 2004-06

    Science.gov (United States)

    Walder, J.S.; LaHusen, R.G.; Vallance, J.W.; Schilling, S.P.

    2007-01-01

    The process of lava-dome emplacement through a glacier was observed for the first time after Mount St Helens reawakened in September 2004. The glacier that had grown in the crater since the cataclysmic 1980 eruption was split in two by the new lava dome. The two parts of the glacier were successively squeezed against the crater wall. Photography, photogrammetry and geodetic measurements document glacier deformation of an extreme variety, with strain rates of extraordinary magnitude as compared to normal alpine glaciers. Unlike normal temperate glaciers, the crater glacier shows no evidence of either speed-up at the beginning of the ablation season or diurnal speed fluctuations during the ablation season. Thus there is evidently no slip of the glacier over its bed. The most reasonable explanation for this anomaly is that meltwater penetrating the glacier is captured by a thick layer of coarse rubble at the bed and then enters the volcano's groundwater system rather than flowing through a drainage network along the bed.

  1. Drainage evolution in the debris avalanche deposits near Mount Saint Helens, Washington

    Science.gov (United States)

    Beach, G. L.; Dzurisin, D.

    1984-01-01

    The 18 May 1980 eruption of Mount St. Helens was initiated by a massive rockslide-debris avalanche which completely transformed the upper 25 km of the North Fork Toutle River valley. The debris was generated by one of the largest gravitational mass movements ever recorded on Earth. Moving at an average velocity of 35 m/s, the debris avalanche buried approximately 60 sq km of terrain to an average depth of 45 m with unconsolidated, poorly sorted volcaniclastic material, all within a period of 10 minutes. Where exposed and unaltered by subsequent lahars and pyroclastic flows, the new terrain surface was characterized predominantly by hummocks, closed depressions, and the absence of an identifiable channel network. Following emplacement of the debris avalanche, a complex interrelationship of fluvial and mass wasting processes immediately began operating to return the impacted area to an equilibrium status through the removal of material (potential energy) and re-establishment of graded conditions. In an attempt to chronicle the morphologic evolution of this unique environmental setting, a systematic series of interpretative maps of several selected areas was produced. These maps, which document the rate and character of active geomorphic processes, are discussed.

  2. A Survey of Ant Species in Three Habitats at Mount St. Helens National Volcanic Monument

    Directory of Open Access Journals (Sweden)

    Jessamy J. Rango

    2012-01-01

    Full Text Available Ants were surveyed in three habitats at Mount St. Helens in 2008. The area most impacted by the 1980 eruption is the Pumice Plain. Less impacted is the Blowdown Zone where trees were toppled due to the blast. Two habitats were surveyed in the Pumice Plain varying in vegetation density (Pumice Plain Low-Vegetation (PPLV and Pumice Plain High-Vegetation (PPHV, and one habitat was surveyed in the Blowdown Zone (BDZ. Ten ant species were collected with the most species collected from the BDZ habitat and the least from the PPLV habitat. Ant abundance was higher at the BDZ and PPHV habitats than at the PPLV habitat. Ant biodiversity was highest at the BDZ habitat than at the PPHV and PPLV habitats. Significant correlations between ant community parameters and plant community parameters were also found. Few plants in the PPLV habitat may contribute to the lack of ants. High ant species richness at the BDZ habitat may be due to complex plant architecture. Results from this study suggest that ants are important focal species in tracking biotic recovery following disturbances.

  3. O desejo na Grécia Helenística

    Directory of Open Access Journals (Sweden)

    Zeferino Rocha

    Full Text Available O presente trabalho é a terceira e última parte de uma pesquisa sobre “O desejo na Grécia Antiga”. Na primeira parte, reunimos as manifestações do desejo nos poemas épicos, líricos e trágicos, bem como nas máximas dos sete sábios e na doutrina dos filósofos pré-socráticos da Grécia Arcaica. Na segunda, apresentamos o essencial da sistematização teórica que, na Grécia Clássica, Sócrates, Platão e Aristóteles deram a essas primeiras manifestações do desejo. Nesta última parte, depois de lembrar a origem e as características da cultura helenística, vamos ver o que os epicuristas e os estóicos, no contexto de suas respectivas filosofias, disseram sobre o desejo no Jardim de Epicuro e no Pórtico Antigo de Zenão e Crísipo.

  4. Digital database of channel cross-section surveys, Mount St. Helens, Washington

    Science.gov (United States)

    Mosbrucker, Adam R.; Spicer, Kurt R.; Major, Jon J.; Saunders, Dennis R.; Christianson, Tami S.; Kingsbury, Cole G.

    2015-08-06

    Stream-channel cross-section survey data are a fundamental component to studies of fluvial geomorphology. Such data provide important parameters required by many open-channel flow models, sediment-transport equations, sediment-budget computations, and flood-hazard assessments. At Mount St. Helens, Washington, the long-term response of channels to the May 18, 1980, eruption, which dramatically altered the hydrogeomorphic regime of several drainages, is documented by an exceptional time series of repeat stream-channel cross-section surveys. More than 300 cross sections, most established shortly following the eruption, represent more than 100 kilometers of surveyed topography. Although selected cross sections have been published previously in print form, we present a comprehensive digital database that includes geospatial and tabular data. Furthermore, survey data are referenced to a common geographic projection and to common datums. Database design, maintenance, and data dissemination are accomplished through a geographic information system (GIS) platform, which integrates survey data acquired with theodolite, total station, and global navigation satellite system (GNSS) instrumentation. Users can interactively perform advanced queries and geospatial time-series analysis. An accuracy assessment provides users the ability to quantify uncertainty within these data. At the time of publication, this project is ongoing. Regular database updates are expected; users are advised to confirm they are using the latest version.

  5. Database for geologic maps of pyroclastic-flow and related deposits of the 1980 eruptions of Mount St. Helens, Washington

    Science.gov (United States)

    Furze, Andrew J; Bard, Joseph A.; Robinson, Joel; Ramsey, David W.; Kuntz, Mel A.; Rowley, Peter D.; MacLeod, Norman S.

    2017-10-31

    This publication releases digital versions of the geologic maps in U.S. Geological Survey Miscellaneous Investigations Map 1950 (USGS I-1950), “Geologic maps of pyroclastic-flow and related deposits of the 1980 eruptions of Mount St. Helens, Washington” (Kuntz, Rowley, and MacLeod, 1990) (https://pubs.er.usgs.gov/publication/i1950). The 1980 Mount St. Helens eruptions on May 18, May 25, June 12, July 22, August 7, and October 16–18 produced pyroclastic-flow and related deposits. The distribution and morphology of these deposits, as determined from extensive field studies and examination of vertical aerial photographs, are shown on four maps in I-1950 (maps A–D) on two map sheets. Map A shows the May 18, May 25, and June 12 deposits; map B shows the July 22 deposits; map C shows the August 7 deposits; and map D shows the October 16–18 deposits. No digital geospatial versions of the geologic data were made available at the time of publication of the original maps. This data release consists of attributed vector features, data tables, and the cropped and georeferenced scans from which the features were digitized, in order to enable visualization and analysis of these data in GIS software. This data release enables users to digitally re-create the maps and description of map units of USGS I-1950; map sheet 1 includes text sections (Introduction, Physiography of Mount St. Helens at the time of the 1980 eruptions, Processes of the 1980 eruptions, Deposits of the 1980 eruptions, Limitations of the maps, Preparation of the maps, and References cited) and associated tables and figures that are not included in this data release.

  6. GeoGirls: A Geology and Geophysics Field Camp for Middle School Girls at Mount St. Helens

    Science.gov (United States)

    Samson, C.; Allstadt, K.; Melander, S.; Groskopf, A.; Driedger, C. L.; Westby, E.

    2015-12-01

    The August 2015 GeoGirls program was a project designed to inspire girls to gain an appreciation and enthusiasm for Earth sciences using Mount St. Helens as an outdoor volcanic laboratory. Occupations in the field of science and engineering tend to be held by more males than females. One way to address this is to introduce girls to possible opportunities within the geosciences and encourage them to learn more about the dynamic environment in which they live. In 2015, the GeoGirls program sought to accomplish this goal through organizing a five day-long field camp for twenty middle school-aged girls, along with four high school-aged mentors and two local teachers. This group explored Mount St. Helens guided by female scientists from the USGS Cascade Volcano Observatory (CVO), the Mount St. Helens Institute (MSHI), UNAVCO, Boise State, Georgia Tech, University of Washington and Oregon State University. To introduce participants to techniques used by volcanologists, the girls participated in hands-on experiments and research projects focusing on seismology, GPS, terrestrial lidar, photogrammetry, water and tephra. Participants also learned to collect samples, analyze data and use microscopes. Through this experience, participants acquired strategies for conducting research by developing hypotheses, making observations, thinking critically and sharing their findings with others. The success of the GeoGirls program was evaluated by participant and parent survey questionnaires, which allowed assessment of overall enthusiasm and interest in pursuing careers in the geosciences. The program was free to participants and was run jointly by MSHI and CVO and funded by NSF, the American Association of University Women, the Association for Women Geoscientists, the Association of Environmental & Engineering Geologists and private donors. The program will run again in the summer of 2016.

  7. Hearing Office Dispositions Per ALJ Per Day Rate Ranking Report

    Data.gov (United States)

    Social Security Administration — A ranking of ODAR hearing offices by the average number of hearings dispositions per ALJ per day. The average shown will be a combined average for all ALJs working...

  8. Hydrometeor-enhanced tephra sedimentation: Constraints from the 18 May 1980 eruption of Mount St. Helens

    Science.gov (United States)

    Durant, A.J.; Rose, William I.; Sarna-Wojcicki, A. M.; Carey, Steven; Volentik, A.C.M.

    2009-01-01

    Uncertainty remains on the origin of distal mass deposition maxima observed in many recent tephra fall deposits. In this study the link between ash aggregation and the formation of distal mass deposition maxima is investigated through reanalysis of tephra fallout from the Mount St. Helens 18 May 1980 (MSH80) eruption. In addition, we collate all the data needed to model distal ash sedimentation from the MSH80 eruption cloud. Four particle size subpopulations were present in distal fallout with modes at 2.2 ??, 4.2 ??, 5.9 ??, and 8.3 ??. Settling rates of the coarsest subpopulation closely matched predicted single-particle terminal fall velocities. Sedimentation of particles <100 ??m was greatly enhanced, predominantly through aggregation of a particle subpopulation with modal diameter 5.9 ?? 0.2 ?? (19 ?? 3 ??m). Mammatus on the MSH80 cloud provided a mechanism to transport very fine ash particles, with predicted atmospheric lifetimes of days to weeks, from the upper troposphere to the surface in a matter of hours. In this mechanism, ash particles initiate ice hydrometeor formation high in the troposphere. Subsequently, the volcanic cloud rapidly subsides as mammatus develop from increased particle loading and cloud base sublimation. Rapid fallout occurs as the cloud passes through the melting level in a process analogous to snowflake aggregation. Aggregates sediment en masse and form the distal mass deposition maxima observed in many recent volcanic ash fall deposits. This work provides a data resource that will facilitate tephra sedimentation modeling and allow model intercomparisons. Copyright 2009 by the American Geophysical Union.

  9. Uljanow – człowiek bezdomny. Uwagi o książce Helen Rappaport

    Directory of Open Access Journals (Sweden)

    Piotr Kuligowski

    2016-06-01

    Full Text Available Helen Rapport w swojej książce Conspirator: Lenin in Exile proponowała nowe spojrzenie na emigracyjny okres życia Lenina, to jest na lata 1902–1917, jako na czas najistotniejszy w życiu rosyjskiego rewolucjonisty. Ten sposób ujęcia zagadnienia otwiera przestrzeń dla nowych interpretacji, ale także wiąże się z określonymi problemami. Rappaport udało się do pewnego stopnia „odbrązowić” Lenina i ukazać go jako postać, której cechy i światopogląd wówczas dopiero się kształtowały. Z drugiej jednak strony, książka zawiera sporo słabo ugruntowanych źródłowo, lecz „sensacyjnych” wątków, które w dużej mierze zapewniły jej rozgłos. Rappaport nie dała również przekonujących odpowiedzi na pytanie, w jaki sposób pobyt w różnych krajach Europy wpłynął na ewolucję światopoglądową Lenina, ograniczając się w tej sferze do referowania kolejnych prac rosyjskiego rewolucjonisty lub do prób przyjrzenia się im przez pryzmat jego cech psychologicznych.

  10. Analysis of GPS-measured deformation associated with the 2004-2006 dome-building eruption of Mount St. Helens, Washington: Chapter 15 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

    Science.gov (United States)

    Lisowski, Michael; Dzurisin, Daniel; Denlinger, Roger P.; Iwatsubo, Eugene Y.; Sherrod, David R.; Scott, William E.; Stauffer, Peter H.

    2008-01-01

    Detecting far-field deformation at Mount St. Helens since the crater-forming landslide and blast in 1980 has been difficult despite frequent volcanic activity and improved monitoring techniques. Between 1982 and 1991, the systematic extension of line lengths in a regional GPS trilateration network is consistent with recharge of a deep magma chamber during that interval. The rate of extension, however, averages only 3 mm/yr, and some of this apparent deformation may result from systematic scale error in the electronic distance measurements. Subsequent GPS surveys and data from a continuous GPS station, located 9 km north of Mount St. Helens and operating since 1997, show no significant volcanic deformation until the start of unrest on September 23, 2004. The current eruption has been accompanied by subtle but widespread inward and downward movement of GPS monitoring stations, exponentially decreasing with time and totaling as much as 30 mm. The observed deformation is consistent with the predictions of an elastic half-space model of a vertically elongate magma chamber with its center at a depth of around 7 to 8 km and with a total cavity-volume loss of about 16–24×106 m3

  11. Soil carbon 4 per mille

    NARCIS (Netherlands)

    Mulder, V.L.

    2017-01-01

    The ‘4 per mille Soils for Food Security and Climate’ was launched at the COP21 with an aspiration to increase global soil organic matter stocks by 4 per 1000 (or 0.4 %) per year as a compensation for the global emissions of greenhouse gases by anthropogenic sources. This paper surveyed the soil

  12. La tipología urbanística alejandrina en la ciudad helenística

    Directory of Open Access Journals (Sweden)

    Joaquín Montero Múñiz

    2000-01-01

    Full Text Available En este artículo se realiza un acercamiento al urbanismo en la Antigüedad, y más en concreto al urbanismo regular aparecido en la antigua Grecia, que encuentra su máxima expresión y difusión con las conquistas territoriales de Alejandro Magno y, posteriormente, durante los reinos helenísticos. La planificación y la fundación de nuevas ciudades durante la época helenística no sólo es un agente motor de desarrollo económico, de control político-militar del territorio o de difusión cultural, sino un factor muy importante y profundo de la propaganda política regia que más tarde seguirán empleando los emperadores romanos.In this article is carried out an approach to the urbanism in the Antiquity, and specific to the planned urbanism in Ancient Greece, that finds its máximum expression and diffusion with Alexander's the Great territorial conquests and, later on, during the Hellenistic kingdoms. The planning and foundation of new cities during the Hellenistic era are not only a motor of economic development, political and military control of the territory or cultural diffusion, but a very important and deep factor of the royal political propaganda that will be used later by the Román emperors.

  13. Helen Kim as New Woman and Collaborator: A Comprehensive Assessment of Korean Collaboration under Japanese Colonial Rule

    Directory of Open Access Journals (Sweden)

    AhRan Ellie Bae

    2017-02-01

    Full Text Available Although almost seventy years has passed since Korea's liberation from Japanese rule, the issue of collaboration still haunts Korea today. Attempts to resolve this issue have tended to focus attention on the traitorous actions of "collaborators" without considering the gray areas that surround their actions such as the circumstances that influenced the accused to commit their alleged traitorous acts and the intentions that drove their decisions. Helen Kim, as a "new woman" and an educator, valued the necessity of providing education for women. Yet, her efforts to realize this goal, to the contrary, forced her into actions that would later be used to construct a reputation as a Japanese collaborator. Korea's nationalist historiography has a tendency to polarize this issue by categorizing a "collaborator" as either a traitor or a patriot. However, when we take a closer look at these collaborators' lives, we discover that most collaboration happened in gray areas where it is often difficult to clearly draw a line between treason and collaboration. Helen Kim's case suggests that the issue of collaboration cannot be fully explained by nationalist historiography's framework and we must give attention to these gray areas. Through her story I hope to complicate the issue of collaboration by raising questions that address the gray areas that surround the actions of "collaborators." In doing so, I hope to challenge the nationalist historiography's propensity to oversimplify this issue and present a more nuanced understanding of it.

  14. A New Perspective on Mount St. Helens - Dramatic Landform Change and Associated Hazards at the Most Active Volcano in the Cascade Range

    Science.gov (United States)

    Ramsey, David W.; Driedger, Carolyn L.; Schilling, Steve P.

    2008-01-01

    Mount St. Helens has erupted more frequently than any other volcano in the Cascade Range during the past 4,000 years. The volcano has exhibited a variety of eruption styles?explosive eruptions of pumice and ash, slow but continuous extrusions of viscous lava, and eruptions of fluid lava. Evidence of the volcano?s older eruptions is recorded in the rocks that build and the deposits that flank the mountain. Eruptions at Mount St. Helens over the past three decades serve as reminders of the powerful geologic forces that are reshaping the landscape of the Pacific Northwest. On May 18, 1980, a massive landslide and catastrophic explosive eruption tore away 2.7 cubic kilometers of the mountain and opened a gaping, north-facing crater. Lahars flowed more than 120 kilometers downstream, destroying bridges, roads, and buildings. Ash from the eruption fell as far away as western South Dakota. Reconstruction of the volcano began almost immediately. Between 1980 and 1986, 80 million cubic meters of viscous lava extruded episodically onto the crater floor, sometimes accompanied by minor explosions and small lahars. A lava dome grew to a height of 267 meters, taller than the highest buildings in the nearby city of Portland, Oregon. Crater Glacier formed in the deeply shaded niche between the 1980-86 lava dome and the south crater wall. Its tongues of ice flowed around the east and west sides of the dome. Between 1989 and 1991, multiple explosions of steam and ash rocked the volcano, possibly a result of infiltrating rainfall being heated in the still-hot interior of the dome and underlying crater floor. In September 2004, rising magma caused earthquake swarms and deformation of the crater floor and glacier, which indicated that Mount St. Helens might erupt again soon. On October 1, 2004, a steam and ash explosion signaled the beginning of a new phase of eruptive activity at the volcano. On October 11, hot rock reached the surface and began building a new lava dome immediately

  15. Polyphony and counterpoint: Mechanisms of seduction in the diaries of Helen Hessel and Henri Pierre Roché

    Directory of Open Access Journals (Sweden)

    Catherine du Toit

    2015-06-01

    Full Text Available Henri Pierre Roché (1879–1959, the author of Jules et Jim, has been called a general introducer, an exemplary amateur, a collector of women and art and one of the most prolific diarists and active lovers in recorded history. Author of a collection of vignettes about Don Juan, Roché was fascinated with the figure of the seducer and in his twenties planned to devote his life to the creation of a body of work which would examine moral, intellectual, social and sexual relations between women and men. To this end, he would transform his life into a laboratory where real-life experiences would become the main source of reference. Roché’s diary spans sixty years and abounds in tales of seduction. However, the most intense and captivating intrigue of seduction and betrayal in his diary, is his relationship with Helen Hessel. At the start of their affair, Roché suggested that she too should keep a diary of the maelstrom of passion into which they were plunged. Written in French, German and English, Helen Hessel’s diary captures the drama of seduction and functions on several levels: realistic, visionary, absorbed in her thoughts and emotions and yet critical of herself and others. A juxtaposed reading of the two diaries generates a fascinatingly dense texture, revealing the mechanisms of seduction at play. The counterpoint created by these two interdependent voices becomes ever more complex as one becomes aware of the intertextual references that contribute to the emerging polyphony of recorded life and love.Polifonie en kontrapunt: Meganismes van verleiding in die dagboeke van Helen Hessel en Henri Pierre Roché. Henri Pierre Roché (1879–1959, outeur van Jules et Jim, word beskryf as ‘n sosiale koppelaar, ‘n model-liefhebber van alles en nog wat, ‘n versamelaar van vroue en kuns en een van die mees produktiewe dagboekskrywers en aktiewe minnaars in die opgetekende geskiedenis. Roché het ‘n reeks sketse oor Don Juan gepubliseer en

  16. The source of infrasound associated with long-period events at mount St. Helens

    Science.gov (United States)

    Matoza, R.S.; Garces, M.A.; Chouet, B.A.; D'Auria, L.; Hedlin, M.A.H.; De Groot-Hedlin, C.; Waite, G.P.

    2009-01-01

    During the early stages of the 2004-2008 Mount St. Helens eruption, the source process that produced a sustained sequence of repetitive long-period (LP) seismic events also produced impulsive broadband infrasonic signals in the atmosphere. To assess whether the signals could be generated simply by seismic-acoustic coupling from the shallow LP events, we perform finite difference simulation of the seismo-acoustic wavefield using a single numerical scheme for the elastic ground and atmosphere. The effects of topography, velocity structure, wind, and source configuration are considered. The simulations show that a shallow source buried in a homogeneous elastic solid produces a complex wave train in the atmosphere consisting of P/SV and Rayleigh wave energy converted locally along the propagation path, and acoustic energy originating from , the source epicenter. Although the horizontal acoustic velocity of the latter is consistent with our data, the modeled amplitude ratios of pressure to vertical seismic velocity are too low in comparison with observations, and the characteristic differences in seismic and acoustic waveforms and spectra cannot be reproduced from a common point source. The observations therefore require a more complex source process in which the infrasonic signals are a record of only the broadband pressure excitation mechanism of the seismic LP events. The observations and numerical results can be explained by a model involving the repeated rapid pressure loss from a hydrothermal crack by venting into a shallow layer of loosely consolidated, highly permeable material. Heating by magmatic activity causes pressure to rise, periodically reaching the pressure threshold for rupture of the "valve" sealing the crack. Sudden opening of the valve generates the broadband infrasonic signal and simultaneously triggers the collapse of the crack, initiating resonance of the remaining fluid. Subtle waveform and amplitude variability of the infrasonic signals as

  17. Growth of the 2004-2006 lava-dome complex at Mount St. Helens, Washington: Chapter 9 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

    Science.gov (United States)

    Vallance, James W.; Schneider, David J.; Schilling, Steve P.; Sherrod, David R.; Scott, William E.; Stauffer, Peter H.

    2008-01-01

    The eruption of Mount St. Helens from 2004 to 2006 has comprised extrusion of solid lava spines whose growth patterns were shaped by a large space south of the 1980-86 dome that was occupied by the unique combination of glacial ice, concealed subglacial slopes, the crater walls, and relics of previous spines. The eruption beginning September 2004 can be divided (as of April 2006) into five phases: (1) predome deformation and phreatic activity, (2) initial extrusion of spines, (3) recumbent spine growth and repeated breakup, (4) southward extrusion across previous dome debris, and (5) normal faulting of the phase 4 dome to form a depression, a shift to westward extrusion and overthrusting of earlier phase 5 products. Overall, steady spine extrusion gradually slowed from 6 m3/s in November 2004 to 0.6 m3/s in February 2006.

  18. Landscape Response to the 1980 Eruption of Mount St. Helens: Using Historical Aerial Photography to Measure Surface Change

    Science.gov (United States)

    Sweeney, K.; Major, J. J.

    2016-12-01

    Advances in structure-from-motion (SfM) photogrammetry and point cloud comparison have fueled a proliferation of studies using modern imagery to monitor geomorphic change. These techniques also have obvious applications for reconstructing historical landscapes from vertical aerial imagery, but known challenges include insufficient photo overlap, systematic "doming" induced by photo-spacing regularity, missing metadata, and lack of ground control. Aerial imagery of landscape change in the North Fork Toutle River (NFTR) following the 1980 eruption of Mount St. Helens is a prime dataset to refine methodologies. In particular, (1) 14-μm film scans are available for 1:9600 images at 4-month intervals from 1980 - 1986, (2) the large magnitude of landscape change swamps systematic error and noise, and (3) stable areas (primary deposit features, roads, etc.) provide targets for both ground control and matching to modern lidar. Using AgiSoft PhotoScan, we create digital surface models from the NFTR imagery and examine how common steps in SfM workflows affect results. Tests of scan quality show high-resolution, professional film scans are superior to office scans of paper prints, reducing spurious points related to scan infidelity and image damage. We confirm earlier findings that cropping and rotating images improves point matching and the final surface model produced by the SfM algorithm. We demonstrate how the iterative closest point algorithm, implemented in CloudCompare and using modern lidar as a reference dataset, can serve as an adequate substitute for absolute ground control. Elevation difference maps derived from our surface models of Mount St. Helens show patterns consistent with field observations, including channel avulsion and migration, though systematic errors remain. We suggest that subtracting an empirical function fit to the long-wavelength topographic signal may be one avenue for correcting systematic error in similar datasets.

  19. Soil Carbon 4 per mille

    Science.gov (United States)

    Minasny, Budiman; van Wesemael, Bas

    2017-04-01

    The '4 per mille Soils for Food Security and Climate' was launched at the COP21 aiming to increase global soil organic matter stocks by 4 per mille (or 0.4 %) per year as a compensation for the global emissions of greenhouse gases by anthropogenic sources. This paper surveyed the soil organic carbon (SOC) stock estimates and sequestration potentials from 20 regions in the world (New Zealand, Chile, South Africa, Australia, Tanzania, Indonesia, Kenya, Nigeria, India, China Taiwan, South Korea, China Mainland, United States of America, France, Canada, Belgium, England & Wales, Ireland, Scotland, and Russia) and asked whether the 4 per mille initiative is feasible. This study highlights region specific efforts and scopes for soil carbon sequestration. Reported soil C sequestration rates generally show that under best management practices, 4 per mille or even higher sequestration rates can be accomplished. High C sequestration rates (up to 10 per mille) can be achieved for soils with low initial SOC stock (topsoil less than 30 t C ha-1), and at the first twenty years after implementation of best management practices. In addition, areas that have reached equilibrium but not at their saturation level will not be able to further increase their sequestration. We found that most studies on SOC sequestration globally only consider topsoil (up to 0.3 m depth), as it is considered to be most affected by management techniques. The 4 per mille initiative was based on a blanket calculation of the whole global soil profile C stock, however the potential to increase SOC is mostly on managed agricultural lands. If we consider 4 per mille on global topsoil of agricultural land, SOC sequestration is about 3.6 Gt C per year, which effectively offset 40% of global anthropogenic greenhouse gas emissions. As a strategy for climate change mitigation, soil carbon sequestration buys time over the next ten to twenty years while other effective sequestration and low carbon technologies become

  20. High-resolution digital elevation model of lower Cowlitz and Toutle Rivers, adjacent to Mount St. Helens, Washington, based on an airborne lidar survey of October 2007

    Science.gov (United States)

    Mosbrucker, Adam

    2015-01-01

    The lateral blast, debris avalanche, and lahars of the May 18th, 1980, eruption of Mount St. Helens, Washington, dramatically altered the surrounding landscape. Lava domes were extruded during the subsequent eruptive periods of 1980–1986 and 2004–2008. More than three decades after the emplacement of the 1980 debris avalanche, high sediment production persists in the Toutle River basin, which drains the northern and western flanks of the volcano. Because this sediment increases the risk of flooding to downstream communities on the Toutle and lower Cowlitz Rivers, the U.S. Army Corps of Engineers (USACE), under the direction of Congress to maintain an authorized level of flood protection, continues to monitor and mitigate excess sediment in North and South Fork Toutle River basins to help reduce this risk and to prevent sediment from clogging the shipping channel of the Columbia River. From October 22–27, 2007, Watershed Sciences, Inc., under contract to USACE, collected high-precision airborne lidar (light detection and ranging) data that cover 273 square kilometers (105 square miles) of lower Cowlitz and Toutle River tributaries from the Columbia River at Kelso, Washington, to upper North Fork Toutle River (below the volcano's edifice), including lower South Fork Toutle River. These data provide a digital dataset of the ground surface, including beneath forest cover. Such remotely sensed data can be used to develop sediment budgets and models of sediment erosion, transport, and deposition. The U.S. Geological Survey (USGS) used these lidar data to develop digital elevation models (DEMs) of the study area. DEMs are fundamental to monitoring natural hazards and studying volcanic landforms, fluvial and glacial geomorphology, and surface geology. Watershed Sciences, Inc., provided files in the LASer (LAS) format containing laser returns that had been filtered, classified, and georeferenced. The USGS produced a hydro-flattened DEM from ground-classified points at

  1. Humanistes per al segle XXI

    Directory of Open Access Journals (Sweden)

    Joan Campàs

    2004-04-01

    Full Text Available A partir d'unes consideracions crítiques respecte als qui, davant dels nous reptes i transformacions de la societat de la informació que afecten els àmbits de la cultura, del coneixement i de l'aprenentatge, només expliciten pors i temors i, d'altra banda, a partir d'una valoració positiva del Manifest de l'humanista del segle xxi, aquest article proposa una reflexió sobre tres aspectes que servirien per a reconfigurar un nou humanisme digital: el paradigma de la complexitat, la revolució digital i la mundialització, per a desembocar en una invitació a la praxi política compromesa per tal de no convertir l'humanista en una entelèquia cultural i un simple caprici ornamental del sistema.

  2. Aplicatiu per a Cafeteria Andana

    OpenAIRE

    Fortuny Navarro, Jordi

    2012-01-01

    La finalitat del projecte és la realització d'una aplicació per gestionar l'activitat d'una cafeteria. El projecte consta de dues parts ben diferenciades: - Una part interna o Intranet, en la que el propietari podrà portar un control del negoci i on podrà establir una interacció amb els clients, fet que ajudarà a millorar la gestió del negoci. - I una part externa o web pública, accessible per a tothom. Actualment la xarxa és un aparador a nivell mundial que permet als petits negocis donar-se...

  3. Plant Succession on the Mount St. Helen's Debris-Avalanche Deposit and the Role of Non-native Species

    Energy Technology Data Exchange (ETDEWEB)

    Denton, Elsie M. [Eastern Oregon Agricultural Research center; Dale, Virginia H. [ORNL

    2017-09-01

    The abstract is published online only. If you did not include a short abstract for the online version when you submitted the manuscript, the first paragraph or the first 10 lines of the chapter will be displayed here. If possible, please provide us with an informative abstract. The debris-avalanche deposit is one of the most disturbed areas created by the 1980 eruption of Mount St. Helens, with little survival of a few plant fragments and primary succession mostly being initiated by the seeds dispersed onto the newly emplaced material. Vegetation changes on the debris-avalanche deposit during the first 30 years post eruption are analyzed considering the role of non-native species and potential future vegetation patterns on the deposit. We found that the aerial distribution of largely non-native seeds on a subset of plots at Mount St. Helens in 1980 has had a pronounced and enduring effect on subsequent vegetation communities.

  4. GDP per capita since 1820

    NARCIS (Netherlands)

    Bolt, Jutta; Timmer, Marcel; van Zanden, Jan Luiten|info:eu-repo/dai/nl/071115374

    2014-01-01

    Since 1820, the world economy experienced spectacular growth in output and income. This chapter builds upon the work by Angus Maddison and shows that the world’s average GDP per capita increased by a factor of 10 between 1820 and the 2010. Yet, this growth was spread very unevenly, resulting in a

  5. PER 2006 (1) Loretta - article

    African Journals Online (AJOL)

    Dr Tanya du Plessis

    the world.1 In 1999 approximately 250 000 hectares of farmland was planted with GM crops. This figure has increased by 100 000 hectare per year.2 South. Africa is ... 1 Biowatch http://www.biowatch.org.za/docs/booklets/gebk4.pdf 15 Jun. 2 Id. The ... subject to transboundary movement for direct use as food or feed, or for.

  6. Kuidas rasketel hetkedel käitud, kellelt nõu küsid? / Erko Karing, Monika Peetson, Helen Sildna... [jt.

    Index Scriptorium Estoniae

    2010-01-01

    Küsimusele vastavad Guvatraki reklaamibüroo juht Erko Karing, audiitor- ja finantsnõustamisfirma Deloitte vandeaudiitor Monika Peetson, muusikapeo Tallinn Music Week peakorraldaja ja ettevõtte MUsicCase omanik Helen Sildna, ETL-Baltic Groupi juhatuse esimees ja üks loojatest Krista Mulenok, Eesti Posti e-arvete operaatori eArvekeskus juht Marius Arrak ning firma Sailinvest omanik Jaanus Tamme

  7. Effects of slope on the formation of dunes in dilute, turbulent pyroclastic currents: May 18th, 1980 Mt. St. Helens eruption

    Science.gov (United States)

    Bendana, Sylvana; Brand, Brittany D.; Self, Stephen

    2014-05-01

    The flanks of Mt St Helens volcano (MSH) are draped with thin, cross-stratified and stratified pyroclastic density current (PDC) deposits. These are known as the proximal bedded deposits produced during the May 18th, 1980 eruption of MSH. While the concentrated portions of the afternoon PDCs followed deep topographic drainages down the steep flanks of the volcano, the dilute overriding cloud partially decoupled to develop fully dilute, turbulent PDCs on the flanks of the volcano (Beeson, D.L. 1988. Proximal Flank Facies of the May 18, 1980 Ignimbrite: Mt. St. Helens, Washington.). The deposits along the flank thus vary greatly from those found in the pumice plain, which are generally thick, massive, poorly-sorted, block-rich deposits associated with the more concentrated portions of the flow (Brand et al, accepted. Dynamics of pyroclastic density currents: Conditions that promote substrate erosion and self-channelization - Mount St Helens, Washington (USA). JVGR). We explore the influence of topography on the formation of these dilute currents and influence of slope on the currents transport and depositional mechanisms. The deposits on steeper slopes (>15°) are fines depleted relative to the proximal bedded deposits on shallower slopes (origin and transport of dilute PDCs.

  8. Per Højholts monologer

    DEFF Research Database (Denmark)

    Nielsen, Klaus

    2010-01-01

    Per Højholt’s monologues: about Gitte, the paratext and the concept of the literary work in a book historic perspective To the field of literary studies book history and bibliography offer insights of immense value in particular with regards to the concept of the literary work. In this article I...... will present an example of how interpretation is affected when the literary work is viewed in a book historic and material perspective. The Danish postmodernist writer Per Højholt had his biggest commercial success with the work Gitte’s Monologues (1980-1984). The monologues enjoyed a wide listening audience...... on the genesis of the work. Most monologues had been commissioned by national radio and other institutions, an aspect that has great bearing on the interpretation of the work. The bibliographical distinction between abstract work and material document is crucial in a case like Gitte’s monologues. The article...

  9. Süüteod elu ja tervise vastu / Jaan Sootak

    Index Scriptorium Estoniae

    Sootak, Jaan, 1948-

    2014-01-01

    Raske tervisekahjustuse tunnustes tehtud täiendusi ning lisandunud kakluses osalemise koosseisu (KarS § 1191) ja kehalise väärkohtlemise kooseisus (KarS § 121) tehtud muudatusi karistusseadustikus

  10. Sediment transport at gaging stations near Mount St. Helens, Washington, 1980-90, data collection and analysis

    Science.gov (United States)

    Dinehart, Randal L.

    1998-01-01

    River sedimentation caused by the May 18, 1980, eruption of Mount St. Helens, Washington, has been monitored in a continuing program by the U.S. Geological Survey. In this report, sediment discharge and changes in sediment transport are summarized from data collected at stream-gaging stations near Mount St. Helens during the years 1980 through 1990. The objectives of the monitoring program included collection of data for calculation of total sediment discharge, computation of daily suspended-sediment discharge, and detailed observations of unique sediment-laden flows. Over the 11-year period, most sediment data were collected at gaging stations on seven eruption affected streams: the Green River, the North and South Fork Toutle Rivers, the Toutle River, the Cowlitz River, Clearwater Creek, and the Muddy River. About 170 million tons of sediment (excluding volcanic debris flows) were transported in suspension from the Toutle River basin during water years 1980–90. Another 13 million tons were transported past the gaging stations on Muddy River in the upper Lewis River basin during water years 1982–90. Long-term reductions in sediment concentration occurred within most ranges of stream discharge at streams dominated by transport from the debris-avalanche deposit and at streams in drainage basins with extensive airfall deposits. Reductions in sediment concentration were less apparent at upper ranges of discharge in two streams dominated by lahar deposits, the South Fork Toutle River and the Muddy River. Bed material, suspended sediment, and bedload were sampled periodically and analyzed for size distributions. Bed material and bedload coarsened with time at some stations. Median particle sizes of suspended sediment did not show a simple relation with time. During water years 1980–84, bed material in the lower Toutle River was medium to coarse sand. During the same period, bed material in the North Fork Toutle River was coarse sand and fine gravel. By 1990

  11. Long-term autonomous volcanic gas monitoring with Multi-GAS at Mount St. Helens, Washington, and Augustine Volcano, Alaska

    Science.gov (United States)

    Kelly, P. J.; Ketner, D. M.; Kern, C.; Lahusen, R. G.; Lockett, C.; Parker, T.; Paskievitch, J.; Pauk, B.; Rinehart, A.; Werner, C. A.

    2015-12-01

    In recent years, the USGS Volcano Hazards Program has worked to implement continuous real-time in situ volcanic gas monitoring at volcanoes in the Cascade Range and Alaska. The main goal of this ongoing effort is to better link the compositions of volcanic gases to other real-time monitoring data, such as seismicity and deformation, in order to improve baseline monitoring and early detection of volcanic unrest. Due to the remote and difficult-to-access nature of volcanic-gas monitoring sites in the Cascades and Alaska, we developed Multi-GAS instruments that can operate unattended for long periods of time with minimal direct maintenance from field personnel. Our Multi-GAS stations measure H2O, CO2, SO2, and H2S gas concentrations, are comprised entirely of commercial off-the-shelf components, and are powered by small solar energy systems. One notable feature of our Multi-GAS stations is that they include a unique capability to perform automated CO2, SO2, and H2S sensor verifications using portable gas standards while deployed in the field, thereby allowing for rigorous tracking of sensor performances. In addition, we have developed novel onboard data-processing routines that allow diagnostic and monitoring data - including gas ratios (e.g. CO2/SO2) - to be streamed in real time to internal observatory and public web pages without user input. Here we present over one year of continuous data from a permanent Multi-GAS station installed in August 2014 in the crater of Mount St. Helens, Washington, and several months of data from a station installed near the summit of Augustine Volcano, Alaska in June 2015. Data from the Mount St. Helens Multi-GAS station has been streaming to a public USGS site since early 2015, a first for a permanent Multi-GAS site. Neither station has detected significant changes in gas concentrations or compositions since they were installed, consistent with low levels of seismicity and deformation.

  12. From dome to dust: shallow crystallization and fragmentation of conduit magma during the 2004-2006 dome extrusion of Mount St. Helens, Washington: Chapter 19 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

    Science.gov (United States)

    Cashman, Katharine V.; Thornber, Carl R.; Pallister, John S.; Sherrod, David R.; Scott, William E.; Stauffer, Peter H.

    2008-01-01

    An unusual feature of the 2004-6 eruptive activity of Mount St. Helens has been the continuous growth of successive spines that are mantled by thick fault gouge. Fault gouge formation requires, first, solidification of ascending magma within the conduit, then brittle fragmentation and cataclastic flow. We document these processes through field relations, hand samples, and thin-section textures. Field observations show that the gouge zone is typically 1-3 m thick and that it includes cataclasite and, locally, breccia in addition to unconsolidated (true) gouge. The gouge contains multiple slickenside sets oriented subparallel to each other and to the striation direction, as well as surface striations parallel to extrusion direction. Hand specimens show the cataclasite and gouge to be composed of a wide size range of broken dome and wallrock fragments. This grain-size heterogeneity is even more pronounced in thin section, where individual samples contain fragments that span more than four orders of magnitude in size (from more than 10 to less than 10-3 mm).

  13. Pensare per immagini: una strada per la coscienza

    Directory of Open Access Journals (Sweden)

    Ferdinando Testa

    2005-12-01

    Full Text Available Pensare per immagini è uno stile particolare di pensiero; l’acquisizione della meta e dell’obiettivo avviene non secondo un modello lineare e unicamente basato sulla legge di causa–effetto, ma attraverso percorsi, strade ed itinerari, privilegiando le connessioni analogiche che, al pari degli assi cartesiani, rappresentano i veri nodi, punti di incontro il cui fulcro è costituito dalla dimensione simbolica ed immaginale. In tale contesto il pensiero che nasce viene costruito gradualmente; non è già dato in maniera preconfezionata, non è nato ancora all’orizzonte, e segue il ritmo ciclico della spirale piuttosto che una retta all’infinito. È un pensiero, che sullo sfondo dell’immaginale collega gli eventi e i fenomeni rispettando il tempo dell’esperienza.

  14. Volcanic tremor masks its seismogenic source: Results from a study of noneruptive tremor recorded at Mount St. Helens, Washington

    Science.gov (United States)

    Denlinger, Roger P.; Moran, Seth C.

    2014-01-01

    On 2 October 2004, a significant noneruptive tremor episode occurred during the buildup to the 2004–2008 eruption of Mount St. Helens (Washington). This episode was remarkable both because no explosion followed, and because seismicity abruptly stopped following the episode. This sequence motivated us to consider a model for volcanic tremor that does not involve energetic gas release from magma but does involve movement of conduit magma through extension on its way toward the surface. We found that the tremor signal was composed entirely of Love and Rayleigh waves and that its spectral bandwidth increased and decreased with signal amplitude, with broader bandwidth signals containing both higher and lower frequencies. Our modeling results demonstrate that the forces giving rise to this tremor were largely normal to conduit walls, generating hybrid head waves along conduit walls that are coupled to internally reflected waves. Together these form a crucial part of conduit resonance, giving tremor wavefields that are largely a function of waveguide geometry and velocity. We find that the mechanism of tremor generation fundamentally masks the nature of the seismogenic source giving rise to resonance. Thus multiple models can be invoked to explain volcanic tremor, requiring that information from other sources (such as visual observations, geodesy, geology, and gas geochemistry) be used to constrain source models. With concurrent GPS and field data supporting rapid rise of magma, we infer that tremor resulted from drag of nearly solid magma along rough conduit walls as magma was forced toward the surface.

  15. The effect of consumers and mutualists of Vaccinium membranaceum at Mount St. Helens: dependence on successional context.

    Directory of Open Access Journals (Sweden)

    Suann Yang

    Full Text Available In contrast to secondary succession, studies of terrestrial primary succession largely ignore the role of biotic interactions, other than plant facilitation and competition, despite the expectation that simplified interaction webs and propagule-dependent demographics may amplify the effects of consumers and mutualists. We investigated whether successional context determined the impact of consumers and mutualists by quantifying their effects on reproduction by the shrub Vaccinium membranaceum in primary and secondary successional sites at Mount St. Helens (Washington, USA, and used simulations to explore the effects of these interactions on colonization. Species interactions differed substantially between sites, and the combined effect of consumers and mutualists was much more strongly negative for primary successional plants. Because greater local control of propagule pressure is expected to increase successional rates, we evaluated the role of dispersal in the context of these interactions. Our simulations showed that even a small local seed source greatly increases population growth rates, thereby balancing strong consumer pressure. The prevalence of strong negative interactions in the primary successional site is a reminder that successional communities will not exhibit the distribution of interaction strengths characteristic of stable communities, and suggests the potential utility of modeling succession as the consequence of interaction strengths.

  16. Rapid, low-cost photogrammetry to monitor volcanic eruptions: an example from Mount St. Helens, Washington, USA

    Science.gov (United States)

    Diefenbach, Angela K.; Crider, Juliet G.; Schilling, Steve P.; Dzurisin, Daniel

    2012-01-01

    We describe a low-cost application of digital photogrammetry using commercially available photogrammetric software and oblique photographs taken with an off-the-shelf digital camera to create sequential digital elevation models (DEMs) of a lava dome that grew during the 2004–2008 eruption of Mount St. Helens (MSH) volcano. Renewed activity at MSH provided an opportunity to devise and test this method, because it could be validated against other observations of this well-monitored volcano. The datasets consist of oblique aerial photographs (snapshots) taken from a helicopter using a digital single-lens reflex camera. Twelve sets of overlapping digital images of the dome taken during 2004–2007 were used to produce DEMs and to calculate lava dome volumes and extrusion rates. Analyses of the digital images were carried out using photogrammetric software to produce three-dimensional coordinates of points identified in multiple photos. The evolving morphology of the dome was modeled by comparing successive DEMs. Results were validated by comparison to volume measurements derived from traditional vertical photogrammetric surveys by the US Geological Survey Cascades Volcano Observatory. Our technique was significantly less expensive and required less time than traditional vertical photogrammetric techniques; yet, it consistently yielded volume estimates within 5% of the traditional method. This technique provides an inexpensive, rapid assessment tool for tracking lava dome growth or other topographic changes at restless volcanoes.

  17. Effect of temperature on the permeability of lava dome rocks from the 2004-2008 eruption of Mount St. Helens

    Science.gov (United States)

    Gaunt, H. Elizabeth; Sammonds, Peter R.; Meredith, Philip G.; Chadderton, Amy

    2016-04-01

    As magma ascends to shallow levels in the volcanic conduit, volatile exsolution can produce a dramatic increase in the crystal content of the magma. During extrusion, low porosity, highly crystalline magmas are subjected to thermal stresses which generate permeable microfracture networks. How these networks evolve and respond to changing temperature has significant implications for gas escape and hence volcano explosivity. Here, we report the first laboratory experimental study on the effect of temperature on the permeability of lava dome rocks under environmental conditions designed to simulate the shallow volcanic conduit and lava dome. Samples were collected for this study from the 2004-2008 lava dome eruption of Mount St. Helens (Washington State, USA). We show that the evolution of microfracture networks, and their permeability, depends strongly on temperature changes. Our results show that permeability decreases by nearly four orders of magnitude as temperature increases from room temperature to 800 °C. Above 800 °C, the rock samples become effectively impermeable. Repeated cycles of heating leads to sample compaction and a reduction in fracture density and therefore a decrease in permeability. We argue that changes in eruption regimes from effusive to explosive activity can be explained by strongly decreasing permeability caused by repeated heating of magma, conduit walls and volcanic plugs or domes. Conversely, magma becomes more permeable as it cools, which will reduce explosivity.

  18. PROGETTO DIDATTICO PER DETENUTI STRANIERI

    Directory of Open Access Journals (Sweden)

    Claudia Savino

    2014-07-01

    Full Text Available Questo lavoro vuol offrire spunti didattici per l’alfabetizzazione sociolinguistica dei detenuti stranieri, attraverso la sperimentazione integrata di alcune metodologie glottodidattiche. In particolare propone un laboratorio interdisciplinare nel quale le attività di italiano L2 si mescolano alle suggestioni dell’arte figurativa. Nella prima parte, l’articolo delinea le interazioni comunicative entro le strutture penitenziarie, con le implicazioni culturali che ne derivano. Accenna inoltre ai progetti pilota dell’Università per Stranieri di Siena in quest’ambito. Nella seconda parte, centrale e sperimentale, l’autrice descrive un progetto didattico in via di definizione, rivolto a detenuti stranieri e italiani: un percorso di educazione linguistica attraverso l’immagine, quale proposta formativa di comunicazione interculturale. Ne evidenzia gli aspetti glottodidattici, sociolinguistici e socioculturali, per illustrare come l’apprendimento/acquisizione della lingua seconda, in reclusione, sia facilitato da una didattica integrata e flessibile, dove l’arte e la L2 sono funzionali al processo di rieducazione del detenuto.  Educational projects for foreign prisoners   Claudia Savino  This paper offers ideas for teaching sociolinguistic literacy to foreign prisoners, through the integrated testing of some language teaching methodologies. In particular, it proposes an interdisciplinary laboratory where Italian L2 activities are mixed with figurative art. In the first part, the article outlines the communicative interactions within the prison facilities, with the cultural implications that derive from it. Mention is made of the pilot projects of the University for Foreigners in Siena in this area. In the second part, the author describes an educational project under development, aimed at Italian and foreign prisoners: language education through art for teaching intercultural communication. It highlights language teaching

  19. Modellistica numerica per problemi differenziali

    CERN Document Server

    Quarteroni, Alfio

    2016-01-01

    In questo testo si introducono i concetti di base per la modellistica numerica di problemi differenziali alle derivate parziali. Si considerano le classiche equazioni lineari ellittiche, paraboliche ed iperboliche, ma anche altre equazioni, quali quelle di diffusione e trasporto, di Navier-Stokes e le leggi di conservazione. Si forniscono inoltre numerosi esempi fisici che stanno alla base di tali equazioni. Quindi si analizzano metodi di risoluzione numerica basati su elementi finiti (continui e discontinui), differenze finite, volumi finiti, metodi spettrali (continui e discontinui), nonché strategie di approssimazione più avanzate basate sui metodi di decomposizione di domini, i metodi a basi ridotte o quelli di risoluzione di problemi di controllo ottimale. In particolare vengono discussi gli aspetti algoritmici e di implementazione al calcolatore e si forniscono diversi programmi di semplice utilizzo. Il testo non presuppone una approfondita conoscenza matematica delle equazioni alle derivate parziali:...

  20. Medicare Hospital Spending Per Patient - National

    Data.gov (United States)

    U.S. Department of Health & Human Services — The "Medicare hospital spending per patient (Medicare Spending per Beneficiary)" measure shows whether Medicare spends more, less or about the same per Medicare...

  1. Medicare Hospital Spending Per Patient - Hospital

    Data.gov (United States)

    U.S. Department of Health & Human Services — The "Medicare hospital spending per patient (Medicare Spending per Beneficiary)" measure shows whether Medicare spends more, less or about the same per Medicare...

  2. Medicare Hospital Spending Per Patient - State

    Data.gov (United States)

    U.S. Department of Health & Human Services — The "Medicare hospital spending per patient (Medicare Spending per Beneficiary)" measure shows whether Medicare spends more, less or about the same per Medicare...

  3. Partners in International Research and Education: Student Contributions to the Collaborative Investigation of Bezymianny, Shiveluch, and Karymsky Volcanoes, Kamchatka, Russia and Mount St. Helens, WA, USA.

    Science.gov (United States)

    Shipman, J. S.; Kayzar, T. M.; Team, P.

    2008-12-01

    Undergraduate and graduate students as well as senior researchers from the U.S., Russia, and Japan are investigating volcanism as participants of the National Science Foundation initiative Partners in International Research and Education (PIRE). The goal of this study is to use the benefits of global comparisons to increase our understanding of explosive volcanism while at the same time developing international collaboration between scientists in the U.S., Russia, and Japan. International collaboration is established through field work in Kamchatka, Russia investigating the active systems of Bezymianny, Shiveluch, and Karymsky volcanoes with a specific focus on historic collapse-blast type eruptions. The Kamchatka volcanic arc provides unique access to multiple active volcanic systems that can be compared and contrasted to the well-studied behavior at Mount St. Helens, WA., USA. Conversely, Mount St. Helens also provides a field setting for Russian and Japanese students to be incorporated in U.S. research. Student participants employ their respective techniques in geochemistry, geophysics, petrology, and remote sensing to study the eruption response of Bezymianny and Shiveluch volcanoes, which have experienced edifice collapse. During the 2008 field season, the increased activity at Bezymianny volcano shortened a planned field expedition. In order to preserve the integrity of the program and provide a safer environment for researchers, alternative field studies began at Karymsky volcano. In July, an anonymously large eruption at Karymsky volcano permitted the collection of unique real-time data of the eruptive event. Here we present student research from three field seasons in the Kamchatka volcanic arc and associated workshops at Mount St. Helens, WA. Results include estimates of magma storage depth, gas emissions measurements, evidence for dynamic thermal regime changes in fresh volcanic deposits, and data constraining magma inputs and sources at each volcano. By

  4. Finite Element Model of a Two-Phase Non-Newtonian Thixotropic Fluid: Mount St. Helens Lava Dome

    Science.gov (United States)

    Vincent, P.; Zevada, P.

    2011-12-01

    Extrusion of highly viscous lavas that spread laterally and form lava domes in the craters of large volcanoes is associated with significant volcanic hazards. Gas overpressure driven fragmentation of the lava dome or collapse and slumping of marginal sections or the entire mass of the dome can trigger dangerous pyroclastic flows that threaten surrounding populations up to tens of kilometers away. The rate of lava dome growth in the mature state of the dome evolution is often oscillatory. Relatively quiescent episodes are terminated by renewed extrusion and emplacement of exogenous "lobes" or "spines" of lava on the surface of the dome. Emplacement of new lobes is preceded by pressurization of magma in the magmatic conduit that can trigger volcanic eruptions and is preceded by crater floor deformation (e.g. Swanson and Holcombe, 1990). This oscillatory behavior was previously attributed primarily to crystallization kinetics and gas exsolution generating cyclic overpressure build-ups. Analogue modeling of the lava domes has revealed that the oscillatory growth rate can be reproduced by extrusion of isothermal, pseudoplastic and thixotropic plaster of Paris (analogue material for the magma) on a sand layer (analogue material for the unconsolidated deposits of the crater floor). The patterns of dome growth of these models closely correspond to both the 1980-1985 and 2004-2005 growth episodes of Mt. St. Helens lava dome (Swanson and Holcombe, 1990; Major et al., 2005). They also suggest that the oscillatory growth dynamics of the lavas can be explained by the mechanical interaction of the non-Newtonian magma with the frictional and deformable substrate below the lava dome rather than complex crystallization kinetics (e.g. Melnik and Sparks, 1999). In addition, these results suggest that the renewed growth episode of Mt. St. Helens dome in 2006 could be associated with an even higher degree of magma pressurization in the conduit than occurred during the 1980 - 1986

  5. Factors controlling permeability and fluid flow within the 2004-2008 Mount St Helens lava dome complex

    Science.gov (United States)

    Gaunt, H. E.; Meredith, P. G.; Sammonds, P.; Smith, R.; Kilburn, C.

    2011-12-01

    Magma degassing is an important control on whether an eruption will be explosive or effusive. Although the process of gas exsolution has been well-studied, the factors that determine how gases subsequently escape are still poorly understood, especially from high-viscosity magmas with evolved compositions, such as dacite. A preferred model for viscous magmas is that shear fracturing during ascent can occur along conduit margins and lead to the development of a permeable fracture network. Such fracture networks facilitate gas escape and the effusion of magma as a lava dome or flow. The model, however, has yet to be tested against direct laboratory measurements on the potential for magma to develop permeable networks of fractures. Between 2004 and 2008, dacite magma was extruded almost continuously from Mount St Helens (Cascade Range, USA) as a succession of gas-poor and solidified lava spines. The dacite is thought to have solidified about 1 km below the vent and to have experienced intense strain localisation at the conduit margins during ascent. The most prominent of all the spines, Spine 4, formed a smooth 'whaleback' feature and had a distinct internal structure analogous to that of a tectonic fault zone. Extruded dacite lava was coated with a thick (~1m) layer of fault gouge, containing multiple sets of sub-parallel slickensides and shear bands orientated preferentially in the direction of spine growth. To investigate the controls on degassing processes, we have measured how permeability varied progressively with increasing temperature and deformation on samples from the 2004-2008 dome at Mount St Helens. Permeability was measured on cylindrical samples, 25 mm in diameter, in a hydrostatic permeameter at confining pressures up to 30 MPa (a depth of c.1.2 km) and, also, in a high temperature deformation apparatus at temperatures up to 900oC, confining pressures of 12 MPa and pore fluid pressures of 4 MPa. Samples of intact dacite from the interior of Spine 4 were

  6. Where is the hot rock and where is the ground water – Using CSAMT to map beneath and around Mount St. Helens

    Science.gov (United States)

    Wynn, Jeff; Mosbrucker, Adam; Pierce, Herbert; Spicer, Kurt R.

    2016-01-01

    We have observed several new features in recent controlled-source audio-frequency magnetotelluric (CSAMT) soundings on and around Mount St. Helens, Washington State, USA. We have identified the approximate location of a strong electrical conductor at the edges of and beneath the 2004–08 dome. We interpret this conductor to be hot brine at the hot-intrusive-cold-rock interface. This contact can be found within 50 meters of the receiver station on Spine 5, which extruded between April and July of 2005. We have also mapped separate regional and glacier-dome aquifers, which lie one atop the other, out to considerable distances from the volcano.

  7. The Stars Belong to Everyone: The rhetorical practices of astronomer and science writer Dr. Helen Sawyer Hogg (1905--1993)

    Science.gov (United States)

    Cahill, Maria J.

    Astronomer and science writer Dr. Helen Sawyer Hogg (University of Toronto) reached a variety of audiences through different rhetorical forms. She communicated to her colleagues through her scholarly writings; she reached out to students and the public through her Toronto Star newspaper column entitled "With the Stars," which she authored for thirty years; she wrote The Stars Belong to Everyone , a book that speaks to a lay audience; she hosted a successful television series entitled Ideas ; and she delivered numerous speeches at scientific conferences, professional women's associations, school programs, libraries, and other venues. Adapting technical information for different audiences is at the heart of technical communication, and Sawyer Hogg's work exemplifies adaptation as she moves from writing for the scientific community (as in her articles on globular cluster research) to science writing for lay audiences (as in her newspaper column, book, and script for her television series). Initially she developed her sense of audience through a male perspective informed largely by her scholarly work with two men (Harlow Shapley and her husband, Frank Hogg) as well as the pervasive masculine culture of academic science. This dissertation situates Sawyer Hogg in what is slowly becoming a canon of technical communication scholarship on female scientists. Toward this end, I discuss how she rhetorically engaged two different audiences, one scholarly and one popular, how Sawyer Hogg translated male dominated scientific rhetoric to writing for the public, and how science writing helped her achieve her professional goals. Complementing the archival research in addressing the questions of this study, I employ social construction analysis (also known as the social perspective) for my research methodology. She was ahead of her time and embodied the social perspective years before its definition as a rhetorical concept. In short, my study illuminates one scientific woman's voice

  8. Hot pressing in conduit faults during lava dome extrusion: Insights from Mount St. Helens 2004-2008

    Science.gov (United States)

    Ryan, Amy G.; Friedlander, Elizabeth A.; Russell, James K.; Heap, Michael J.; Kennedy, Lori A.

    2018-01-01

    Rhyodacitic volcanoes such as Mount St. Helens (MSH), Soufrière Hills, Mount Unzen and Mount Pelée erupt spines mantled by layers of magma-derived cataclasite and fault gouge. MSH produced seven lava spines from 2004-2008 composed of low-porosity, compositionally uniform, crystalline dacite. Dome extrusion was attended by continuous 'drumbeat' seismicity, derived from faulting along the conduit margin at 0.5-1 km depth, and evidenced by the enveloping gouge layers. We describe the properties of the gouge-derived fault rocks, including laboratory measurements of porosity and permeability. The gouge varies from unconsolidated powder to lithified low-porosity low-permeability fault rocks. We reconstruct the subsurface ascent of the MSH magma using published field observations and create a model that reconciles the diverse properties of the gouge with conditions in the conduit during ascent (i.e. velocity, temperature). We show lithification of the gouge to be driven by 'hot pressing' processes, wherein the combination of elevated temperature, confining pressure and dwell-time cause densification and solid-state sintering of the comminuted, crystal-rich (glass-poor) gouge. The degree of gouge lithification corresponds with residence time in the conduit such that well-lithified materials reflect extended times in the subsurface due to slower ascent rates. With this insight, we suggest that gouge competence can be used as a first-order estimate of lava ascent rates. Furthermore we posit gouge lithification, which reduces porosity and permeability, inhibits volcanic outgassing thereby increasing the potential for explosive events at spine-producing volcanoes.

  9. El oráculo de Dídima : un ejemplo de las relaciones diplomáticas en época helenística

    Directory of Open Access Journals (Sweden)

    Mª Eugenia de la Nuez Pérez

    2010-01-01

    Full Text Available En un periodo tan complejo como la época helenística, las ciudades de Asia Menor van a establecer una red de relaciones diplomáticas entre ellas y con los nuevos actores del momento, las monarquías helenísticas, a fin de garantizarse una cierta estabilidad tanto interior como exterior. En este ‘juego’, Mileto va a aprovechar la existencia en su territorio del oráculo de Apolo, situado en Dídima, para crear un vínculo sólido y duradero con los Seléucidas, vínculo que va más allá de la dominación territorial directa y que es un ejemplo de esas relaciones diplomáticas tan importantes tanto para los monarcas como para las ciudades.The Hellenistic period is a very complex period, especially in Asia Minor. The Greek cities of Anatolia have to establish a system of diplomatic relations between themselves and the Hellenistic Kingdoms intending to grant their independence and stability. In this paper, we will study the example of Miletos, which employed the sanctuary of Didyma to establish diplomatic relations with the Seleucids, a very strong link which is a good example of the Hellenistic diplomacy.

  10. A comparative needs assessment of the dental health of adults attending dental access centres and general dental practices in Halton & St Helens and Warrington PCTs 2007.

    Science.gov (United States)

    Milsom, K M; Jones, C; Kearney-Mitchell, P; Tickle, M

    2009-03-14

    Dental access centres (DACs) were introduced in England at the turn of the twenty-first century in response to a growing problem of access to NHS dental services. DACs were expected to offer NHS dental care primarily to those patients that were unwilling or unable to attend 'high street' dental practice. At the same time, the new NHS primary care dental contract in England, introduced in April 2006, has been associated in some areas with access difficulties, with routine dental patients having difficulty accessing NHS dental care. In light of these changes, have DACs become an alternative provider of NHS dental services to patients seeking routine dental care? In summer 2007, a cross sectional dental epidemiological study was undertaken in Halton & St Helens PCT and Warrington PCT to compare the dental health and attitudes to dental visiting of adult patients attending DACs and neighbouring 'high street' dental practices. The results of the study showed that DAC patients: were younger and from a more disadvantaged background than patients attending 'high street' practices; had worse oral health than 'high street' dental patients; experienced more frequent episodes of dental pain than 'high street' dental patients and were more likely to be dentally anxious; had different attitudes to dental health than their 'high street' counterparts. The study suggests that the DACs in Halton, St Helens and Warrington are offering treatment to a different population of patients to that seen in neighbouring 'high street' practices and therefore the DACs are fulfilling the function expected of them locally.

  11. Vanemate töötamine välismaal - kuidas see mõjutab lapse elu : laste ja spetsialistide tõlgendused / Helen Pärna, Karmen Lai, Taimi Tulva

    Index Scriptorium Estoniae

    Pärna, Helen, 1983-

    2008-01-01

    Artikkel tugineb Helen Pärna magistriuurimusele. Ülevaade uurimustulemustest, mis puudutavad välismaale tööle läinud lapsevanemate lapse toimetulekut argieluga ning arutletakse selle üle, kuidas lapse lahusolek vanematest võib mõjutada lapse ja vanema vahelisi suhteid

  12. Education and Outreach through Ludo-Pedagogy and Experiential Learning. Bridging Feminist and Diversity Movements in Today's Nicaragua: An Interview with Helen Alfaro, Yova Briones, and Tannia Rizo Lazo of La Casa de los Colores

    Science.gov (United States)

    DeGrave, Analisa

    2016-01-01

    La Casa de los Colores (the House of Colors) is a feminist organization dedicated to defending human rights, particularly those of the LGBTQ+ community in León, Nicaragua. In 2016 Helen Alfaro, Yova Briones, Ani Guerrero, and Tannia Rizo Lazo, four members of La Casa's leadership team, "Las Coloras," were invited to speak about…

  13. Urbanistid ja keskkonnaeksperdid: iga muudatuse eest Reidi tee projektis oleme pidanud võitlema / Helen Sooväli-Sepping, Kristi Grišakov, Mari Jüssi ; intervjueerinud Mari Peegel ; kommenteerinud Taavi Aas

    Index Scriptorium Estoniae

    Sooväli-Sepping, Helen, 1974-

    2016-01-01

    TLÜ keskkonnakorralduse professor ja linnakorralduse õppekava juht Helen Sooväli-Sepping, TTÜ maastikuarhitektuuri õppekava juht ja linnaplaneerija-urbanist Kristi Grišakov ning Stockholmi keskkonnainstituudi Tallinna keskuse liikuvus- ja keskkonnaekspert Mari Jüssi kinnitavad, et Reidi tee projekt ei ole endiselt inimsõbralik

  14. Topographic controls on pyroclastic density current dynamics: Insight from 18 May 1980 deposits at Mount St. Helens, Washington (USA)

    Science.gov (United States)

    Brand, Brittany D.; Bendaña, Sylvana; Self, Stephen; Pollock, Nicholas

    2016-07-01

    Our ability to interpret the deposits of pyroclastic density currents (PDCs) is critical for understanding the transport and depositional processes that control PDC dynamics. This paper focuses on the influence of slope on flow dynamics and criticality as recorded in PDC deposits from the 18 May 1980 eruption of Mt. St. Helens (USA). PDC deposits are found along the steep flanks (10°-30°) and across the pumice plain ( 5°) up to 8 km north of the volcano. Granulometry, componentry and descriptions of depositional characteristics (e.g., bedform morphology) are recorded with distance from source. The pumice plain deposits are primarily thick (3-12 m), massive and poorly-sorted, and represent deposition from a series of concentrated PDCs. By contrast, the steep flank deposits are stratified to cross-stratified, suggesting deposition from PDCs where turbulence strongly influenced transport and depositional processes. We propose that acceleration of the concentrated PDCs along the steep flanks resulted in thinning of the concentrated, basal region of the current(s). Enhanced entrainment of ambient air, and autofluidization from upward fluxes of air from substrate interstices and plunging breakers across rugged, irregular topography further inflated the currents to the point that the overriding turbulent region strongly influenced transport and depositional mechanisms. Acceleration in combination with partial confinement in slot canyons and high surface roughness would also increase basal shear stress, further promoting shear and traction transport in the basal region of the current. Conditions along the steep flank resulted in supercritical flow, as recorded by regressive bedforms, which gradually transitioned to subcritical flow downstream as the concentrated basal region thickness increased as a function of decreasing slope and flow energy. We also find that (1) PDCs were erosive into the underlying granular substrate along high slopes (> 25°) where currents were

  15. SVILUPPO DI SOLUZIONI SOFTWARE PER LA SISMOLOGIA

    OpenAIRE

    Lanucara, Piero; Ruggiero, Vittorio; Zampini, Stefano; Ferraro, Luca

    2012-01-01

    Sviluppare soluzioni software per la sismologia è diventato, ormai, indispensabile per comprendere i complessi fenomeni che regolano il funzionamento del sistema Terra, come ad esempio: lo studio degli effetti di Sito che consentono di caratterizzare con estrema precisione l’impatto in superficie di un terremoto potenzialmente distruttivo; la derivazione di modelli per lo studio della deformazione cosismica prodotta da grandi terremoti; le simulazioni dirette per il calcolo dei campi di defor...

  16. ENEA presenta sistema ADS per trattamento scorie

    CERN Multimedia

    2002-01-01

    "Arriva il sistema Ads (Accelerator driven system) per il trattamento dei rifiuti radioattivi. Lo studio di fattibilita' per l' innovativa tecnologia, realizzato da un gruppo di lavoro congiunto Enea, Cea, Cern e Ansaldo, e' stato presentato oggi nel corso di un workshop presieduto dal premio Nobel per la fisica, Carlo Rubbia" (1/2 page).

  17. Field-trip guide to Mount St. Helens, Washington - An overview of the eruptive history and petrology, tephra deposits, 1980 pyroclastic density current deposits, and the crater

    Science.gov (United States)

    Pallister, John S.; Clynne, Michael A.; Wright, Heather M.; Van Eaton, Alexa R.; Vallance, James W.; Sherrod, David R.; Kokelaar, B. Peter

    2017-08-02

    This field trip will provide an introduction to several fascinating features of Mount St. Helens. The trip begins with a rigorous hike of about 15 km from the Johnston Ridge Observatory (9 km north-northeast of the crater vent), across the 1980 Pumice Plain, to Windy Ridge (3.6 km northeast of the crater vent) to examine features that document the dynamics and progressive emplacement of pyroclastic flows. The next day, we examine classic tephra outcrops of the past 3,900 years and observe changes in thickness and character of these deposits as we traverse their respective lobes. We examine clasts in the deposits and discuss how the petrology and geochemistry of Mount St. Helens deposits reveal the evolution of the magmatic system through time. We also investigate the stratigraphy of the 1980 blast deposit and review the chronology of this iconic eruption as we travel through the remains of the blown-down forest. The third day is another rigorous hike, about 13 km round trip, climbing from the base of Windy Ridge (elevation 1,240 m) to the front of the Crater Glacier (elevation 1,700 m). En route we examine basaltic andesite and basalt lava flows emplaced between 1,800 and 1,700 years before present, a heterolithologic flow deposit produced as the 1980 blast and debris avalanche interacted, debris-avalanche hummocks that are stranded on the north flank and in the crater mouth, and shattered dacite lava domes that were emplaced between 3,900 and 2,600 years before present. These domes underlie the northern part of the volcano. In addition, within the crater we traverse well-preserved pyroclastic-flow deposits that were emplaced on the crater floor during the summer of 1980, and a beautiful natural section through the 1980 deposits in the upper canyon of the Loowit River.Before plunging into the field-trip log, we provide an overview of Mount St. Helens geology, geochemistry, petrology, and volcanology as background. The volcano has been referred to as a

  18. Overview of the 2004 to 2006, and continuing, eruption of Mount St. Helens, Washington: Chapter 1 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

    Science.gov (United States)

    Scott, William E.; Sherrod, David R.; Gardner, Cynthia A.; Sherrod, David R.; Scott, William E.; Stauffer, Peter H.

    2008-01-01

    Rapid onset of unrest at Mount St. Helens on September 23, 2004, initiated an uninterrupted lava-dome-building eruption that continues to the time of writing this overview (spring 2006) for a volume of papers focused on this eruption. About three weeks of intense seismic unrest and localized surface uplift, punctuated by four brief explosions, constituted a ventclearing phase, during which there was a frenzy of media attention and considerable uncertainty regarding the likely course of the eruption. The third week exhibited lessened seismicity and only minor venting of steam and ash, but rapid growth of the uplift, or welt, south of the 1980-86 lava dome proceeded as magma continued to push upward. Crystalrich dacite (~65 weight percent SiO2) lava first appeared at the surface on October 11, 2004, beginning the growth of a complex lava dome of uniform chemical composition accompanied by persistent but low levels of seismicity, rare explosions, low gas emissions, and frequent rockfalls. Petrologic studies suggest that the dome lava is chiefly of 1980s vintage, but with an admixed portion of new dacite. Alternatively, it may derive from a part of the magma chamber not tapped by 1980s eruptions. Regardless, detailed investigations of crystal chemistry, melt inclusions, and isotopes reveal a complex magmatic history. Largely episodic extrusion between 1980 and 1986 produced a relatively symmetrical lava dome composed of stubby lobes. In contrast, continuous extrusion at mean rates of about 5 m3/s in autumn 2004 to 3/s in early 2006 has produced an east-west ridge of three mounds with total volume about equal to that of the old dome. During much of late 2004 to summer 2005, a succession of spines, two recumbent and one steeply sloping and each mantled by striated gouge, grew to nearly 500 m in length in the southeastern sector of the 1980 crater and later disintegrated into two mounds. Since then, growth has been concentrated in the southwestern sector, producing a

  19. Medicare hospital spending per patient (Medicare Spending per Beneficiary) – Additional Decimal Places

    Data.gov (United States)

    U.S. Department of Health & Human Services — The "Medicare hospital spending per patient (Medicare Spending per Beneficiary)" measure shows whether Medicare spends more, less or about the same per Medicare...

  20. Two Millian Arguments: Using Helen Longino’s Approach to Solve the Problems Philip Kitcher Targeted with His Argument on Freedom of Inquiry

    Directory of Open Access Journals (Sweden)

    Jaana Eigi

    2012-12-01

    Full Text Available Philip Kitcher argued that the freedom to pursue one's version of the good life is the main aim of Mill's argument for freedom of expression. According to Kitcher, in certain scientific fields, political and epistemological asymmetries bias research toward conclusions that threaten this most important freedom of underprivileged groups. Accordingly, Kitcher claimed that there are Millian grounds for limiting freedom of inquiry in these fields to protect the freedom of the underprivileged.I explore Kitcher's argument in light of the interpretation Helen Longino gave to Mill's argument. She argued that free critical dialogue in the community allows bias to be overcome, through intersubjective criticism of hypotheses and the background assumptions that frame them.I suggest that Longino's approach allows for the identification of the fundamental problems of the research programs Kitcher targeted, and for the rejection of their claims to knowledge. Thus it is possible to address Kitcher's problem without limiting freedom of speech.

  1. The past, present, and future of paediatric cardiology training at the Johns Hopkins Hospital, in the tradition of Dr Helen Taussig.

    Science.gov (United States)

    Beasley, Gary S; Murphy, Anne M; Brenner, Joel I; Ravekes, William J

    2016-12-01

    Johns Hopkins has been a leader in paediatric cardiology for over 85 years. In the 1940s, Dr Helen Taussig began training fellows in paediatric cardiology at Johns Hopkins at a time when the diagnosis and treatment of CHD were in the earliest stage. Under her leadership, the fellowship developed a strong foundation that has continued to evolve to meet the current needs of learners and educators. In the current era, the Johns Hopkins programme implements the current theories of adult education and actively engages our fellows in learning as well as teaching. The programme uses techniques such as flipped classroom, structured case-based small-group learning, observed and structured clinical examination, simulations, and innovative educational technology. These strategies combined with our faculty and rich history give our fellows a unique educational experience.

  2. Frequency-dependent seismic coda-attenuation imaging of volcanic geomorphology: from debris flows at Mount St. Helens volcano to cross-faulting at Campi Flegrei caldera.

    Science.gov (United States)

    De Siena, Luca; Gabrielli, Simona; Spagnolo, Matteo

    2017-04-01

    The stochastic loss of energy measured using the later portion of seismic recordings (coda) can be used to image and monitor geomorphology in volcanoes, once appropriate sensitivity kernels for the application of attenuation tomography have been developed. The use of this advanced seismic method with GIS/InSAR techniques is an unexplored field, which is receiving increasing attention in volcano-seismology. By using this integrated approach we can image structure and monitor dynamics of the debris flow that followed the 1980 explosive eruption of Mount St. Helens (US) volcano at resolution similar to that of remote sensing data, and depths of volcano has not erupted, attenuation anomalies are instead spatially correlated with the regions of highest structural complexity and cross faulting. At Campi Flegrei, Italy, the results provide a novel perspective on the links between deep fluid migration and surface structures. The implications of the proposed approach on volcano monitoring are evident.

  3. Cyclic pressurisation of Mount St Helens dacites and basalt. Laboratory results and implications for lava dome monitoring

    Science.gov (United States)

    Kendrick, Jackie; Dainty, Matthew; Smith, Rosanna; Sammonds, Peter; Pallister, John; Meredith, Phillip

    2010-05-01

    Lava domes are frequently subjected to cyclic heating and pressurisation, which may weaken the dome rocks, leading to renewed extrusion, explosions or collapse. These heating and loading cycles can be recreated in the laboratory, allowing the level of crack damage caused by these cycles to be established through analysing elastic moduli. Acoustic emissions (AEs) indicate the timing of cracking, and can also be used to interpret precursory seismicity for eruption prediction. Experiment samples are from Mount St. Helens, USA: 3 dacites from the Pine Creek eruptive period (2.9-2.55 ka), a Castle Creek age basalt (2.55-1.895 ka), and 4 dacites from the 2004-2008 eruption. Each sample was cut into several cylindrical cores (25 mm diameter and 62.5-70 mm long). Some samples were then heated and cooled at 1˚C/ minute to a target temperature of 600o C or 900o C, and held for 2 hours to achieve thermal equilibrium. This heating can cause cracking due to contrasts in thermal expansion of different minerals. Dynamic elastic moduli were calculated for each sample using ultrasonic wave velocity, density and porosity for later comparison to static elastic moduli gathered during deformation. One core of each sample was loaded to failure in uniaxial compression in order to find the short term strength of the sample. For all cyclic loading tests, conducted on pre-heated and unheated cores, samples were loaded at 10-5 s-1 strain rate then unloaded to 5MPa. Subsequent cycles had an increasing peak load. Most had the same rate for unloading, with a few samples unloaded instantaneously. Axial, radial and volumetric strain were determined from the recorded displacement throughout the experiment and used with the axial stress measurements to calculate static elastic moduli. Samples loaded to failure with no cycling generally failed at higher stresses than their cyclically loaded counter-parts, whilst rapid unloading increased their strength. Failure stresses of the dacite lava dome

  4. Analysis of recently digitized continuous seismic data recorded during the March-May, 1980, eruption sequence at Mount St. Helens

    Science.gov (United States)

    Moran, S. C.; Malone, S. D.

    2013-12-01

    The May 18, 1980, eruption of Mount St. Helens (MSH) was an historic event, both for society and for the field of volcanology. However, our knowledge of the eruption and the precursory period leading up it is limited by the fact that most of the data, particularly seismic recordings, were not kept due to severe limitations in the amount of digital data that could be handled and stored using 1980 computer technology. Because of these limitations, only about 900 digital event files have been available for seismic studies of the March-May seismic sequence out of a total of more than 4,000 events that were counted using paper records. Fortunately, data from a subset of stations were also recorded continuously on a series of 24 analog 14-track IRIG magnetic tapes. We have recently digitized these tapes and time-corrected and cataloged the resultant digital data streams, enabling more in-depth studies of the (almost) complete pre-eruption seismic sequence using modern digital processing techniques. Of the fifteen seismic stations operating near MSH for at least a part of the two months between March 20 and May 18, six stations have relatively complete analog recordings. These recordings have gaps of minutes to days because of radio noise, poor tape quality, or missing tapes. In addition, several other stations have partial records. All stations had short-period vertical-component sensors with very limited dynamic range and unknown response details. Nevertheless, because the stations were at a range of distances and were operated at a range of gains, a variety of earthquake sizes were recorded on scale by at least one station, and therefore a much more complete understanding of the evolution of event types, sizes and character should be achievable. In our preliminary analysis of this dataset we have found over 10,000 individual events as recorded on stations 35-40 km from MSH, spanning a recalculated coda-duration magnitude range of ~1.5 to 4.1, including many M 3

  5. Põlisrahvaste deklaratsioon / Helen Arusoo

    Index Scriptorium Estoniae

    Arusoo, Helen, 1972-

    2010-01-01

    Urmas Sisask kuulutas Tuhala Nõiakaevu kaitseks välja Tuhala ja Nabala karstialadel rahvusvahelise tähtsusega looduskaitsealaks toetudes internetis kogutud 60 000 toetusallkirjale ja 2007. aastal Eesti poolt allkirjastatud ÜRO põlisrahvaste õiguste deklaratsioonile web-static.vm.ee/static/failid/298/Polisrahvaste_deklaratsioon_EST.pdf

  6. Ainult hulludele / Helen Urbanik

    Index Scriptorium Estoniae

    Urbanik, Helen

    2000-01-01

    1992. a. olid eestlased väga lähedal sellele, et saata Pirital ehitatud jaht Ameerika Karika võistlusele purjetamises. Jahi jooniste autor - Oleg Larionov, ehituse projektijuht Tõnu Urbanik, eestlaste ja venelaste sündikaadi finantsdirektor Valentin Stepanov

  7. Betoonist videograafika / Helen Kivisoo

    Index Scriptorium Estoniae

    Kivisoo, Helen

    2001-01-01

    12. augustini Helsingis MUU galeriis Jasper Zoova videoinstallatsioon "Hebel - Betoonehitus uuest aspektist" ja Tuukka Kaila (Soome) fotod "Heissulivei - Vaadake kui ilus - Check out me and my country".

  8. Popmuusika / Helen Sildna

    Index Scriptorium Estoniae

    Sildna, Helen

    2005-01-01

    Uutest heliplaatidest Maxence Cyrin "Modern Rhapsodies", Mint Royale "See You In The Morning", Robbie Williams "Intesive", The Paddingtons "Fist Comes", Frank Sinatra With Tommy Dorsey "The Essential", Deep Purple "Rapture Of The Deep", Oleg Pissarenko "The Book's Burning"

  9. Constraining the magmatic system at Mount St. Helens (2004–2008) using Bayesian inversion with physics-based models including gas escape and crystallization

    Science.gov (United States)

    Wong, Ying-Qi; Segall, Paul; Bradley, Andrew; Anderson, Kyle R.

    2017-01-01

    Physics-based models of volcanic eruptions track conduit processes as functions of depth and time. When used in inversions, these models permit integration of diverse geological and geophysical data sets to constrain important parameters of magmatic systems. We develop a 1-D steady state conduit model for effusive eruptions including equilibrium crystallization and gas transport through the conduit and compare with the quasi-steady dome growth phase of Mount St. Helens in 2005. Viscosity increase resulting from pressure-dependent crystallization leads to a natural transition from viscous flow to frictional sliding on the conduit margin. Erupted mass flux depends strongly on wall rock and magma permeabilities due to their impact on magma density. Including both lateral and vertical gas transport reveals competing effects that produce nonmonotonic behavior in the mass flux when increasing magma permeability. Using this physics-based model in a Bayesian inversion, we link data sets from Mount St. Helens such as extrusion flux and earthquake depths with petrological data to estimate unknown model parameters, including magma chamber pressure and water content, magma permeability constants, conduit radius, and friction along the conduit walls. Even with this relatively simple model and limited data, we obtain improved constraints on important model parameters. We find that the magma chamber had low (<5wt%) total volatiles and that the magma permeability scale is well constrained at ~10-11.4 m2 to reproduce observed dome rock porosities. Compared with previous results, higher magma overpressure and lower wall friction are required to compensate for increased viscous resistance while keeping extrusion rate at the observed value.

  10. Dissociation of the Reach and the Grasp in the destriate (V1) monkey Helen: a new anatomy for the dual visuomotor channel theory of reaching.

    Science.gov (United States)

    Whishaw, Ian Q; Karl, Jenni M; Humphrey, Nicholas K

    2016-08-01

    Dual visuomotor channel theory proposes that reaching depends on two neural pathways that extend from visual cortex (V1) to motor cortex via the parietal lobe. The Reach pathway directs the hand to the target's location and the Grasp pathway shapes the hand and digits for purchase. Sighted human participants integrate the Reach and the Grasp, but without vision they dissociate the movements to capitalize on tactile cues. They use a Reach with a relatively open hand to locate the target and then they use touch cues to shape the fingers to Grasp. After a V1 lesion, the rhesus monkey, Helen, learned to make near-normal visual discriminations based on size and brightness but displayed visual agnosia. She also learned to reach for food with her mouth and her hands. The present analysis of film of her reaching behavior shows that she dissociated the Reach and the Grasp, as do unsighted human participants reaching for a food target at a fixed location. Her rapid and direct Reach was made with an open hand and extended fingers to contact the food with the palm whereas her Grasp was initiated after she touched the food. She also visually fixated the target during the Reach and visually disengaged after target contact, as do sighted human participants. In contrast, Helen did integrate the Reach and the Grasp to take food from her mouth, demonstrating that she could integrate the movements using online tactile cues. The finding that extrastriate pathways can direct the hand toward extrinsic target properties (location) but not intrinsic target properties (size and shape) is discussed as a novel addition to dual visuomotor channel theory.

  11. Servei web per al software Identax

    OpenAIRE

    Santander Garcia, Victor

    2013-01-01

    Aquest projecte consisteix en una nova versió per a plataformes mòbils del software existent per a escriptori anomenat IDENTAX . El programa permet realitzar la identificació taxonòmica dels bacteris en un dispositiu mòbil i d'aquesta manera facilitar la feina a la comunitat microbiòloga.

  12. La figura del mesías según los historiadores judeo-helenísticos Filón de Alejandría y Flavio Josefo

    Directory of Open Access Journals (Sweden)

    Miralles Maciá, Lorena

    2004-12-01

    Full Text Available In this paper the author analyses the image of the Messiah as depicted by the Jewish- Hellenistic historians Philo of Alexandria and Flavius Josephus. Philo's image is basically of an eschatological nature clearly sharing Hellenistic philosophical concepts. In the works of Josephus, however, several types can be distinguished, having all in common the human nature of the Messiah and his influence on historical events.

    En este artículo analizamos la figura del mesías según los historiadores judeo-helenísticos Filón de Alejandría y Flavio Josefo. El primero presenta a un mesías escatológico que participa de los conceptos filosóficos helenísticos. En cambio, en la obra de Josefo se distinguen varios tipos, que tienen en común su naturaleza humana y su influencia en los acontecimientos históricos.

  13. Modeling Per Capita State Health Expenditure Variat...

    Data.gov (United States)

    U.S. Department of Health & Human Services — Modeling Per Capita State Health Expenditure Variation State-Level Characteristics Matter, published in Volume 3, Issue 4, of the Medicare and Medicaid Research...

  14. Deregulated expression of the Per1 and Per2 in human gliomas.

    Science.gov (United States)

    Xia, He-chun; Niu, Zhan-feng; Ma, Hui; Cao, Shuan-zhu; Hao, Shao-cai; Liu, Zhong-tao; Wang, Fan

    2010-05-01

    Growing evidence shows that the deregulation of the circadian clock plays an important role in the development of malignant tumors, including gliomas. However, the molecular mechanisms of genes controlling circadian rhythm in glioma cells have not been explored. Using reverse transcription polymerase chain reaction and immunohistochemistry techniques, we examined the expression of two important clock genes, Per1 and Per2, in 33 gliomas. In this study, out of 33 gliomas, 28 were Per1-positive, and 23 were Per2-positive. The expression levels of Per1 and Per2 in glioma cells were significantly different from the surrounding non-glioma cells (P0.05). While there was no difference in the intensity of immunoactivity for Per2 between high-grade gliomas and low-grade gliomas (r=-0.330, P=0.061), the expression level of Per1 in high-grade gliomas was significantly lower than that in low-grade gliomas(r=-0.433, P=0.012). In this study, we found that the expression of Per1 and Per2 in glioma cells was much lower than in the surrounding non-glioma cells. Therefore, we suggest that disturbances in Per1 and Per2 expression may result in the disruption of the control of normal circadian rhythm, thus benefiting the survival of glioma cells. Differential expression of circadian clock genes in glioma and non-glioma cells may provide a molecular basis for the chemotherapy of gliomas.

  15. Nitrate and (per)chlorate reduction pathways in (per)chlorate-reducing bacteria

    NARCIS (Netherlands)

    Oosterkamp, M.J.; Mehboob, F.; Schraa, G.; Plugge, C.M.; Stams, A.J.M.

    2011-01-01

    The reduction of (per)chlorate and nitrate in (per)chlorate-reducing bacteria shows similarities and differences. (Per)chlorate reductase and nitrate reductase both belong to the type II DMSO family of enzymes and have a common bis(molybdopterin guanine dinucleotide)molybdenum cofactor. There are

  16. Per-Pixel Lighting Data Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Inanici, Mehlika

    2005-08-01

    This report presents a framework for per-pixel analysis of the qualitative and quantitative aspects of luminous environments. Recognizing the need for better lighting analysis capabilities and appreciating the new measurement abilities developed within the LBNL Lighting Measurement and Simulation Toolbox, ''Per-pixel Lighting Data Analysis'' project demonstrates several techniques for analyzing luminance distribution patterns, luminance ratios, adaptation luminance and glare assessment. The techniques are the syntheses of the current practices in lighting design and the unique practices that can be done with per-pixel data availability. Demonstrated analysis techniques are applicable to both computer-generated and digitally captured images (physically-based renderings and High Dynamic Range photographs).

  17. Preface to Per Linguam 27(1

    Directory of Open Access Journals (Sweden)

    Christa van der Walt

    2011-09-01

    Full Text Available This first number of Per Linguam in 2011 sees an extended Editorial Board and we would like to welcome the following esteemed scholars: Prof Colin Baker from the University of Wales (Bangor, a specialist in bilingual education;Prof Herman Batibo from the University of Botswana, a specialist on African languages, language planning and policy issues in Africa; and Prof Petra Engelbrecht from the University of Canterbury, an educational psychologist. We hope that they will be as pleased to be associated with Per Linguam as we are to have them on board! We also say farewell to Prof Bonny Norton whose commitments prevent her from serving on the Board.  Her presence on the Board has lent stature to Per Linguam and she will be missed. We wish her all the best for the future and hope that we can convince her to return at some point in the future.

  18. Identitat corporativa per a un club esportiu

    OpenAIRE

    Zarzuela Puerta, Carlos

    2016-01-01

    Creació d'una identitat corporativa gràfica per a un club d'atletisme a partir d'una base. A partir del color principal, nom i logo de l'equip, es creen unes normes per unificar tots els continguts gràfics del club i crear-ne de nous sota aquests criteris. Per poder establir unes normes gràfiques, es crea un briefing amb la informació del club i s'estableix un manual d'identitat gràfica que actua com a document regulador de la línia gràfica de club. Es redissenya la pàgina web sota les normes...

  19. Women in Physics in Perú

    Science.gov (United States)

    Loayza, María Luisa Cerón; Vásquez, Yezeña Huaypar; Cabrejos, Jorge Aurelio Bravo

    2009-04-01

    The numbers of women receiving undergraduate and master's degrees in physics from San Marcos National University and undergraduate physics degrees from San Luis Gonzaga National University in Perú are reported. The number of undergraduate degrees in physics has increased for women in San Marcos University, but not for women earning master's degrees. Why don't women complete their post-degree studies? Economics and gender stereotypes are factors that women in Perú have to fight each day. Perú does not have a good scholar program in science, so few students are interested in beginning their university careers in science. Improvements in science education are needed for our country to reach its potential.

  20. Per mantenere una cultura musicale dobbiamo insegnarla

    Directory of Open Access Journals (Sweden)

    Philip Gossett

    2014-05-01

    Full Text Available Come musicologi, abbiamo il dovere di fare di più per coniugare i nostri interessi con quelli degli studiosi impegnati in altri campi, fra cui la storia e la storia dell’arte. Il mio contributo al simposio intende delineare alcuni dei problemi che dobbiamo affrontare oggi nel contesto scolastico, insistendo sull’idea che noi, in quanto studiosi, possiamo fare molto per eradicare questi problemi. Occorre capire che la nostra disciplina va considerata parte integrante del bagaglio culturale che ogni studente deve possedere.

  1. Does immigration boost per capita income?

    DEFF Research Database (Denmark)

    Felbermayr, Gabriel; Hiller, Sanne; Sala, Davide

    2010-01-01

    Using a cross-section of countries, we adapt Frankel and Romer's (1999) IV strategy to international labor mobility. Controlling for institutional quality, trade, and financial openness, we establish a robust and non-negative causal effect of immigration on real per capita income.......Using a cross-section of countries, we adapt Frankel and Romer's (1999) IV strategy to international labor mobility. Controlling for institutional quality, trade, and financial openness, we establish a robust and non-negative causal effect of immigration on real per capita income....

  2. Does Immigration Boost Per Capita Income?

    DEFF Research Database (Denmark)

    Felbermayr, Gabriel J.; Hiller, Sanne; Sala, Davide

    Using a cross-section of countries, we adapt Frankel and Romer's (1999) IV strategy to international labor mobility. Controlling for institutional quality, trade, and ?nancial openness, we establish a robust and non-negative causal e?ect of immigration on real per-capita income.......Using a cross-section of countries, we adapt Frankel and Romer's (1999) IV strategy to international labor mobility. Controlling for institutional quality, trade, and ?nancial openness, we establish a robust and non-negative causal e?ect of immigration on real per-capita income....

  3. Playware e robotica modulare per il gioco

    Directory of Open Access Journals (Sweden)

    Henrik H. Lund

    2009-01-01

    Full Text Available In questo contributo presentiamo e usiamo il concetto di building block robotico per la creazione di playware. Il concetto tecnologico di building block programmabili e dotati di input e output (ivi inclusa la comunicazione e dell'intelligenza artificiale embodied, che enfatizza la relazione fra morfologia e controllo.Per dare un esempio concreto del concetto di building block robotico, proponiamo le mattonelle che abbiamo creato, come elementi che compongono un nuovo tipo di campo giochi sul quale i bambini possono sperimentare un feedback immediato ai loro movimenti.

  4. Gestor de tiquets per a drets ARCO

    OpenAIRE

    Caballero Lemos, Patricia

    2013-01-01

    L'objectiu principal d'aquest projecte és estudiar diverses eines de ticketing i analitzar les seves característiques per poder escollir amb criteri aquella que resulti més convenient i sobre la qual realitzar les modificacions necessàries per adaptar-la a l'àmbit dels drets ARCO. El objetivo principal de este proyecto es estudiar diversas herramientas de ticketing y analizar sus características para poder elegir con criterio aquella que resulte más conveniente y sobre la que realizar las...

  5. Per uno studio sulla procedura delle concordanze

    Directory of Open Access Journals (Sweden)

    Luca Andrea Di Martino

    2012-12-01

    Full Text Available La procedura delle concordanze individua una tecnica interpretativa che solo in apparenza ritrova la propria ragione nello strutturalismo più sorvegliato: prima ancora di essere un metodo di studio, è di fatto una possibilità del testo, dal punto di vista del lettore, del critico e dell’autore. Qui si guarda alle concordanze anzitutto attraverso l’esperienza di tre filologi del secolo scorso (Barbi, Contini e Avalle, per proporne infine un esame per dir così tecnico, richiamando una categoria in particolare riproposta da Franco Brioschi (l’esemplificazione.

  6. Perú Centro de Culturas

    OpenAIRE

    Beltrán-Neira, Roberto J.; Profesor emérito, Profesor extraordinario investigador. Facultad de Estomatología. Universidad Peruana Cayetano Heredia. Lima,

    2014-01-01

    Cuando se examina el panorama cultural de América Precolombina, tres son los principales centros de civilización localizados en lo que actualmente son México, Guatemala y Perú.En Sudamérica, el desarrollo cultural estuvo concentrado en lo que hoy es el Perú, lo que lleva a preguntarnos cuáles fueron las condiciones que favorecieron el desarrollo de culturas de tan alto nivel como las de Chavín, Paracas y Huari, por ejemplo.La costa, árida en su mayor parte, con estrechos valles de aguas torre...

  7. Computationally efficient prediction of area per lipid

    DEFF Research Database (Denmark)

    Chaban, Vitaly V.

    2014-01-01

    Area per lipid (APL) is an important property of biological and artificial membranes. Newly constructed bilayers are characterized by their APL and newly elaborated force fields must reproduce APL. Computer simulations of APL are very expensive due to slow conformational dynamics. The simulated d...

  8. Vaccinatietoestand Nederland per 1 januari 2004

    NARCIS (Netherlands)

    Abbink F; Oomen PJ; Zwakhals SLN; de Melker HE; Ambler-Huiskes A; CIE

    2005-01-01

    In dit rapport treft u de cijfers aan van de vaccinatietoestand in Nederland per 1 januari 2004 voor zuigelingen, kleuters (4-jarigen) en schoolkinderen (9-jarigen) van de cohorten 2001, 1998 en 1993.De vaccinatiegraad in Nederland is al jaren zeer goed te noemen. Het afgelopen verslagjaar is de

  9. UTILITY OF THE TEN PER CENT RULE

    African Journals Online (AJOL)

    2001-11-01

    Nov 1, 2001 ... Objective: To measure asymmetry in grip strength between hands in left, right and mixed handers and to test utility of the ten per cent rule. Design: A cross sectional study. Setting: Queen Elizabeth Central Hospital, Blantyre, Malawi. Subjects: One hundred and seventy six healthy volunteers (102 males and ...

  10. Ligeti: Ricercare per organo / M. K.

    Index Scriptorium Estoniae

    M. K.

    1991-01-01

    Uuest heliplaadist "Ligeti: Ricercare per organo, Vivier, Les Communiantes, Cavana, Jodl; Scelsi: In nomine Lucis; Lennot: Livre d'Orgue-extrait; Richer: Orgue 88; Pärt: Pari intervallo, Pierre Bousseau (Orgel)" (AD:1990). Adda/TIS CD 581 240 (WD:59'45") DDD

  11. CYNODON DACTYLON (L.) PERS., AND ITS IMPLICATIONS

    African Journals Online (AJOL)

    2 Department of Biochemistry and Biological Sciences. Wye College, Ashford, UK. ABSTRACT: Leaves and branches of bermuda grass, Gynodon dactylon (L.) Pers., were exposed to various concentrations of N aCl and KC] salt solutions and were examined using light microscopy, electron microscopy and atomic.

  12. PER PhDs & Bachelor's Degrees

    Science.gov (United States)

    White, Susan C.

    2017-01-01

    Recently, the editor remarked to me that physics departments that offered a PhD with a specialization in Physics Education Research (PER) seemed to graduate more bachelor's degree recipients than those physics PhD departments that did not have the specialization. I was not convinced. That led to quite a bit of discussion between us. He compiled a…

  13. Characterization of (per)chlorate-reducing bacteria

    NARCIS (Netherlands)

    Wolterink, A.F.W.M.

    2004-01-01

    Some bacteria can use (per)chlorateas terminal electron acceptor for growth. These bacteria convert perchlorate via chlorate and chlorite into chloride and molecular oxygen. Oxygen formation in microbial respiration is unique. In this study two chlorate-reducing strains

  14. Annapolis achieves 99 per cent availability

    Energy Technology Data Exchange (ETDEWEB)

    DeLory, R.P.

    1986-07-01

    The Annapolis tidal power plant which officially came on line in 1984 is described. In its first year it achieved 99 per cent availability. It is the first tidal power plant in North America and the first plant in the world to employ a large diameter Straflo turbine.

  15. Evolving magma storage conditions beneath Mount St. Helens inferred from chemical variations in melt inclusions from the 1980-1986 and current (2004-2006) eruptions: Chapter 33 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

    Science.gov (United States)

    Blundy, Jon; Cashman, Katharine V.; Berlo, Kim; Sherrod, David R.; Scott, William E.; Stauffer, Peter H.

    2008-01-01

    Major element, trace element, and volatile concentrations in 187 glassy melt inclusions and 25 groundmass glasses from the 1980-86 eruption of Mount St. Helens are presented, together with 103 analyses of touching FE-Ti oxide pairs from the same samples. These data are used to evaluate the temporal evolution of the magmatic plumbing system beneath the volcano during 1980-86 and so provide a framework in which to interpret analyses of melt inclusions from the current (2004-2006) eruption. Major and trace element concentrations of all melt inclusions lie at the high SiO2 end of the data array defined by eruptive products of the late Quaternary age from Mount St. Helens. For several major and trace elements, the glasses define a trend that is oblique to the whole-rock trend, indicating that different mineral assemblages were responsible for the two trends. The whole-rock trend can be ascribed to differentiation of hydrous basaltic parents in a deep-seated magma reservoir, probably at depths great enough to stabilize garnet. In contrast, the glass trends were generated by closed-system crystallization of the phenocryst and microlite mineral assemblages at low pressures. The dissolved H2O content of the melt inclusions from 1980-86, as measured by the ion microprobe, ranges from 0 to 6.7 wt. percent, with the highest values obtained from the plinian phase of May 18, 1980. Water contents decrease with increasing SiO2, consistent with decompression-driven crystallization. Preliminary data for dissolved CO2 in melt inclusions from the May 18 plinian phase from August 7, 1980, indicate that XH2O in a vapor phase was approximately constant at 0.80, irrespective of H2O content, suggestive of closed-system degassing with a high bubble fraction or gas streaming through the subvolcanic system. Temperature and f

  16. Self-similar rupture implied by scaling properties of volcanic earthquakes occurring during the 2004-2008 eruption of Mount St. Helens, Washington

    Science.gov (United States)

    Harrington, Rebecca M.; Kwiatek, Grzegorz; Moran, Seth C.

    2015-01-01

    We analyze a group of 6073 low-frequency earthquakes recorded during a week-long temporary deployment of broadband seismometers at distances of less than 3 km from the crater at Mount St. Helens in September of 2006. We estimate the seismic moment (M0) and spectral corner frequency (f0) using a spectral ratio approach for events with a high signal-to-noise (SNR) ratio that have a cross-correlation coefficient of 0.8 or greater with at least five other events. A cluster analysis of cross-correlation values indicates that the group of 421 events meeting the SNR and cross-correlation criteria forms eight event families that exhibit largely self-similar scaling. We estimate the M0 and f0 values of the 421 events and calculate their static stress drop and scaled energy (ER/M0) values. The estimated values suggest self-similar scaling within families, as well as between five of eight families (i.e.,  and  constant). We speculate that differences in scaled energy values for the two families with variable scaling may result from a lack of resolution in the velocity model. The observation of self-similar scaling is the first of its kind for such a large group of low-frequency volcanic tectonic events occurring during a single active dome extrusion eruption.

  17. Correlations of turbidity to suspended-sediment concentration in the Toutle River Basin, near Mount St. Helens, Washington, 2010-11

    Science.gov (United States)

    Uhrich, Mark A.; Kolasinac, Jasna; Booth, Pamela L.; Fountain, Robert L.; Spicer, Kurt R.; Mosbrucker, Adam R.

    2014-01-01

    Researchers at the U.S. Geological Survey, Cascades Volcano Observatory, investigated alternative methods for the traditional sample-based sediment record procedure in determining suspended-sediment concentration (SSC) and discharge. One such sediment-surrogate technique was developed using turbidity and discharge to estimate SSC for two gaging stations in the Toutle River Basin near Mount St. Helens, Washington. To provide context for the study, methods for collecting sediment data and monitoring turbidity are discussed. Statistical methods used include the development of ordinary least squares regression models for each gaging station. Issues of time-related autocorrelation also are evaluated. Addition of lagged explanatory variables was used to account for autocorrelation in the turbidity, discharge, and SSC data. Final regression model equations and plots are presented for the two gaging stations. The regression models support near-real-time estimates of SSC and improved suspended-sediment discharge records by incorporating continuous instream turbidity. Future use of such models may potentially lower the costs of sediment monitoring by reducing time it takes to collect and process samples and to derive a sediment-discharge record.

  18. Un test per la faringits aguda

    OpenAIRE

    Madurell, Jordi

    2013-01-01

    La faringitis aguda és una de les raons més freqüents de consulta del metge d'atenció primària i en la major part dels casos es prescriu un antibiòtic. Ara bé, segons l'evidència científica només han de ser tractats amb antibiòtics aquells episodis de faringitis causats per un bacteri determinat, l'estreptococ β-hemolític del grup A (EBHGA). Segons sembla, només un 10-30% dels episodis aguts en nens i 10-15% dels casos en adults són causats per EBHGA. Aquesta tesi, presentada al Departament d...

  19. CALiPER Retail Lamps Study 3

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2014-02-01

    This is a special CALiPER report on LED lamps available through the retail marketplace and targeted toward general consumers. It follows similar reports published in 2011 and 2012 (products purchased in 2010 and 2011), and is intended as a continuation that identifies long-term trends. For this report, products were selected to investigate specific hypotheses, rather than represent a sample of the increasingly large retail LED market.

  20. Making It Personal: Per Capita Carbon Allowances

    DEFF Research Database (Denmark)

    Fawcett, Tina; Hvelplund, Frede; Meyer, Niels I

    2009-01-01

    The Chapter highligts the importance of introducing new, efficient schemes for mitigation of global warming. One such scheme is Personal Carbon Allowances (PCA), whereby individuals are allotted a tradable ration of CO2 emission per year.This chapter reviews the fundamentals of PCA and analyzes its...... merits and problems. The United Kingdom and Denmark have been chosen as case studies because the energy situation and the institutional setup are quite different between the two countries....

  1. LA LINGUA PER STUDIARE: UNA RASSEGNA BIBLIOGRAFICA

    Directory of Open Access Journals (Sweden)

    Marina Tassara

    2011-02-01

    Full Text Available I libri di testo adottati nelle scuole contengono parole sconosciute e costruzioni sintattiche e testuali complesse che rappresentano dei veri e propri “muri linguistici” per gli alunni stranieri che non possiedono una buona conoscenza della lingua italiana. Ciò facilmente determina un divario di competenze tra l’apprendente straniero e i suoi compagni e ritardi scolastici molto spesso incolmabili con conseguente perdita di motivazione e di autostima, senso di frustrazione e isolamento che a volte sfocia in un disagio psico-sociale. Tra gli strumenti adottati dalla scuola italiana per far fronte a questo problema vi sono i testi disciplinari ad alta comprensibilità che, pur mantenendo la maggior parte delle informazioni, le veicolano in una forma più semplice dal punto di vista linguistico. L’articolo fornisce una bibliografia di manuali ad alta comprensibilità il più possibile aggiornata suddivisa per ordine e grado di scuola e per materia scolastica, con l’intento di fornire agli insegnanti un aiuto nella scelta e nel reperimento dei testi.     Language for study:  a bibliography   Textbooks used in schools contain unknown words and complex sentence constructions that create real “linguistic barriers” for foreign students who do not know Italian well.  This creates an abyss between the competence of the foreign learner and his or her classmates and unsuccessful school performance which is often not made up for and leads to a loss of self-esteem, frustration, isolation, and ultimately to psycho-social malaise.  Among the tools utilized in the Italian school system to address this problem are highly comprehensible textbooks which, while containing most of the information, express the content in simpler language.  This article offers an up-dated bibliography of textbooks which are easily understandable, divided according to order and grade of school, for teachers to use in choosing the textbooks for their classes.

  2. Dodici comandamenti per l’accesso aperto

    Directory of Open Access Journals (Sweden)

    Maria Chiara Pievatolo

    2012-02-01

    Full Text Available Come può comportarsi un ricercatore che desidera diffondere l’accesso aperto non solo a parole, ma anche nei fatti? Avevo provato a rispondere, limitatamente all’arte della citazione. Mi hanno allora chiesto una guida che abbracciasse tutta l’attività di ricerca. Danah Boyd ha già prodotto qualcosa di simile: ecco un adattamento del suo lavoro per  l’uso degli [...

  3. Una nuova piattaforma per i Dati Aperti

    Directory of Open Access Journals (Sweden)

    Ernesto Lastres

    2013-02-01

    Full Text Available In un panorama di continua evoluzione ed interesse da parte della opinione pubblica sul tema dei “dati open” moltienti della pubblica amministrazione e di governo stanno svolgendo azioni specifiche per la concretizzazione di queste iniziative in ottica di open government. Tuttavia, sono in pochi quelli che nel settore privato hanno intrapreso delle iniziative importanti in tale direzione. In questo articolo presentiamo una iniziativa indipendente per una nuova piattaforma software dedicata ai dati open su internet che, se confermasse i propri scopi, costituirebbe un punto di partenza a livello nazionale per l’accesso a questi dati. In a very evolving context and in a particular moment of public interest in theme of open data, many public organizations and government institutions are carrying out specific actions for the realization of initiatives in order to promote the open government ideas. However, very few private organizations have launched initiatives in this direction. In this paper we present an independent initiative for a new software platform for opendata on the internet that aims to be a starting point at the national level for the access to these kind of data.

  4. CALiPER Retail Lamps Study 3

    Energy Technology Data Exchange (ETDEWEB)

    Royer, Michael P. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Beeson, Tracy A. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2014-02-01

    The CALiPER program first began investigating LED lamps sold at retail stores in 2010, purchasing 33 products from eight retailers and covering six product categories. The findings revealed a fragmented marketplace, with large disparities in performance of different products, accuracy of manufacturer claims, and offerings from different retail outlets. Although there were some good products, looking back many would not be considered viable competitors to other available options, with too little lumen output, not high enough efficacy, or poor color quality. CALiPER took another look in late 2011purchasing 38 products of five different types from nine retailers and the improvement was marked. Performance was up; retailer claims were more accurate; and the price per lumen and price per unit efficacy were down, although the price per product had not changed much. Nonetheless, there was still plenty of room for improvement, with the performance of LED lamps not yet reaching that of well-established classes of conventional lamps (e.g., 75 W incandescent A19 lamps). Since the second retail lamp study was published in early 2012, there has been substantial progress in all aspects of LED lamps available from retailers. To document this progress, CALiPER again purchased a sample of lamps from retail stores 46 products in total, focusing on A19, PAR30, and MR16 lamps but instead of a random sample, sought to select products to answer specific hypotheses about performance. These hypotheses focused on expanding ranges of LED equivalency, the accuracy of lifetime claims, efficacy and price trends, as well as changes to product designs. Among other results, key findings include: There are now very good LED options to compete with 60 W, 75 W, and 100 W incandescent A19 lamps, and 75 W halogen PAR30 lamps. MR16 lamps have shown less progress, but there are now acceptable alternatives to 35 W, 12 V halogen MR16 lamps and 50 W, 120 V halogen MR16 lamps for some applications. Other

  5. Interstellar Abundances Toward X Per, Revisited

    Science.gov (United States)

    Valencic, Lynne A.; Smith, Randall K.

    2014-01-01

    The nearby X-ray binary X Per (HD 24534) provides a useful beacon with which to measure elemental abundances in the local ISM. We examine absorption features of 0, Mg, and Si along this line of sight using spectra from the Chandra Observatory's LETG/ ACIS-S and XMM-Newton's RGS instruments. In general, we find that the abundances and their ratios are similar to those of young F and G stars and the most recent solar values. We compare our results with abundances required by dust grain models.

  6. La prensa chicha en Perú

    Directory of Open Access Journals (Sweden)

    Mónica S Cappellini

    2015-01-01

    Full Text Available Analiza las características y comportamiento del periodismo chicha en Perú, una forma de sensacionalismo, de preferencias populares que se desarrolla como un moderno ejemplo mediático de entretenimiento. La cultura chicha representa un grupo de costumbres de una subcultura limeña, tomó este nombre por su relación con lo indígena. Los diarios chicha son leídos preferentemente por los niveles socieconómicos bajos y muy bajos éstos no tienen impacto en la opinión pública.

  7. Blockchain per l'educació

    OpenAIRE

    Arcas Sanz, Joan Manel

    2017-01-01

    La tecnologia Blockchain o de cadena de blocs va sorgir com a suport de la xarxa de monedes virtuals Bitcoin, però amb la recent aparició dels Smart Contracts existeix la possibilitat de crear infinitud d'aplicacions que funcionin de manera distribuïda i sense la necessitat d'entitats intermediàries. En aquest article es presenta una introducció a la tecnologia Blockchain, des dels seus inicis amb Bitcoin fins a l'actualitat amb la utilització dels Smart Contracts. Posteriorment es comparen a...

  8. Obituary: Per E. Maltby, 1933-2006

    Science.gov (United States)

    Kjeldseth-Moe, Olav

    2007-12-01

    Professor Per Maltby, prominent Norwegian Solar Physicist at the Institute of Theoretical Astrophysics, University of Oslo, Norway, died on 24 May 2006. Lung cancer was diagnosed in February, but he was expected to improve. Until the end of March he came to his office every day, got recent papers off the web, and followed his field closely as he had always done. Per Maltby was born in Oslo, Norway, on 3 November 1933. He started his studies at the University of Oslo in 1952 and took his candidate degree in 1957. Between 1955 and 1958 he was a research assistant at the Institute of Theoretical Astrophysics in Oslo. In 1960 Maltby became an assistant professor (amanuensis) at the University of Bergen and from January 1963 he held a corresponding position at the University of Oslo. He became an associate professor in 1967, and from 1983 until he retired in 2003 he was a full Professor at the Institute of Theoretical Astrophysics, University of Oslo. Per Maltby is survived by his wife Elisabet (née Ruud), whom he married in 1956. They had two children. The daughter, Bente, is a medical doctor and gynecologist serving as a section head at the district hospital in Kristiansand in southern Norway. Their son, Lars, holds a doctoral degree in engineering, specializing in the properties of powders. He is currently managing director in the Norwegian division of the French multinational company Saint Gobain. As a father Per Maltby expressed pride in his children and was pleased with their progress in life. He also enjoyed his five grandchildren. As a scientist, Per Maltby was versatile and productive. In the early 1960s he visited the California Institute of Technology where he did pioneering studies of the distribution and time variation of the radio emission from active galaxies, using the Owens Valley Radio Observatory. His work with Alan Moffet contributed to revealing the secrets of these remote objects. Their results drew attention and were indeed mentioned in the pages

  9. Characterizing Energy per Job in Cloud Applications

    Directory of Open Access Journals (Sweden)

    Thi Thao Nguyen Ho

    2016-12-01

    Full Text Available Energy efficiency is a major research focus in sustainable development and is becoming even more critical in information technology (IT with the introduction of new technologies, such as cloud computing and big data, that attract more business users and generate more data to be processed. While many proposals have been presented to optimize power consumption at a system level, the increasing heterogeneity of current workloads requires a finer analysis in the application level to enable adaptive behaviors and in order to reduce the global energy usage. In this work, we focus on batch applications running on virtual machines in the context of data centers. We analyze the application characteristics, model their energy consumption and quantify the energy per job. The analysis focuses on evaluating the efficiency of applications in terms of performance and energy consumed per job, in particular when shared resources are used and the hosts on which the virtual machines are running are heterogeneous in terms of energy profiles, with the aim of identifying the best combinations in the use of resources.

  10. Una imatge val per mil paraules

    Directory of Open Access Journals (Sweden)

    Jaume Cabré

    1999-11-01

    Full Text Available Una vegada hi havia un videoclub ple de pel·lícules i a l'entrada hi havia un rètol lluminós molt bonic que deia el lema d'aquesta casa, que és una imatge val per mil paraules. I vet aquí un dia que la clientela ja se n'havia anat, però encara no havien tancat els llums, van entrar al videoclub dues rates, l'Amàlia i l'Amèlia. I van dir: "Què fem avui?" Aleshores l'Amèlia se'n va anar de seguida cap al racó de la sèrie B i va agafar una pel·lícula poc coneguda, mentre que l'Amàlia va agafar Mort a Venècia. Llavors la va començar a rosegar i l'Amèlia li va dir: "Què, què te'n sembla?", i l'Amàlia li va contestar: "Mmm... Em va agradar més la novel·la."

  11. Ipotesi per l'attore del futuro

    Directory of Open Access Journals (Sweden)

    Marco Galignano

    2012-01-01

    Full Text Available Abstract – IT Il teatro è in subbuglio perché il mondo tutto è in subbuglio. Ciclicità probabilmente, nel presente difficile. Crisi. Storiografia, società, umanità, nuove forme di teatro, scontro/incontro di etnologie, scienza nuova in fermento (biologia, fisica, chimica, tecnologia, astronomia, nuovi orizzonti di conoscenza, attori che si cercano, contaminazioni artistiche di genere, pedagogie da rifare. Caos. Tradizioni sconvolte e nuove necessità. Economia allo spasmo. Eppure esiste una strada positiva, attuabile nella sfera del privato, del personale. La salute, intesa come scopo di esistenza; la poesia, in connessione con il mistero ontologico; l’arte, specchio e riflesso della vita, potrebbero essere i capisaldi di una nuova integrazione, psicofisica, volta alla riscoperta del naturale, del benessere umano. Si cerca qui di proporre delle strade che vadano in questa direzione. Ipotesi di vita, per il teatro, per l’attore. Per l’essere umano nel nuovo millennio. Ipotesi su come possano fondersi le conoscenze più avanzate sulla salute organica dell’essere umano, recuperando la sapienza antica a volte incomprensibilmente dimenticata; la parte più aulica, nel senso di elevata, raffinata e funzionale dell’arte dello spettacolo. Abstract – EN Theatre is in a turmoil, because the whole world is in a turmoil. Cyclical pattern, perhaps, in a difficult present time. Crisis. Historiography, society, humankind, new ways of making theatre, ethnological encounter and clashing, new science in a state of ferment (biology, physics, chemistry, technology, astronomy, new horizons of knowledge, actors in search of each other, artistic gender contamination, science of education to be built anew. Chaos. Upset tradition and new needs. Suffering economy. Nevertheless, a positive way does exist and it’s workable in your own personal environment. Health meant as a goal of existence, poetry connected with ontological mystery and art as a

  12. Zircon from Mount St. Helens Reveals Residence Times of Tens to Hundreds of Thousands of Years at Low Magmatic Temperatures Prior to Eruption

    Science.gov (United States)

    Claiborne, L. L.; Miller, C. F.; Clynne, M. A.; Wooden, J. L.; Pallister, J. S.; Lowenstern, J. B.; Mazdab, F. K.

    2007-12-01

    U-series and U-Pb geochronology of zircons from four samples that span the 300,000 year eruptive history of Mount St. Helens, combined with zircon trace element geochemistry and application of the Ti-in-zircon thermometer, provide critical constraints on the time-temperature-compositional history of the sub-volcanic magmatic system. Preliminary results indicate that prior to and throughout its eruptive history, one or more relatively cool, crystal-rich reservoirs have been accumulating beneath the volcano. SHRIMP-RG U-Pb ages of the oldest sample, a dacite erupted ~300 ka, reveal that zircons grew between ~320 and 520 ka, suggesting magmatic activity may have begun 200 ka before eruption. 238U-230Th age spectra in the three youngest samples indicate multiple ages of growth for each sample. The oldest of these three young samples (eruption constrained to ~35-50 ka) contains zircons ranging from ~50 to ~200 ka, with the main concentration of ages ~100 ka. Zircons from a 35 ka dacite range from ~65 to ~230 ka in age, with a dominant episode of growth ~130 ka. Dacite from the current eruption, sampled from the dome in 2005, contains zircons from ~40 to ~170 ka in age, with distinct populations at ~130 and ~170 ka. Taken together, these ages of tens to hundreds of thousands of years prior to eruption and the distinct episodes of growth suggest repeated injection and accumulation of one or more crystal-rich reservoirs beneath the volcanic edifice, a scenario that is further supported by Ti-in-zircon geothermometry (Watson et al. 2006). Ti concentrations indicate zircons grew at temperatures from ~840 to ~640 C, with 90% of analyzed spots recording temperatures between ~770 and ~670 C (T's carry uncertainties of tens of degrees, mostly from uncertainty in a(TiO2)). These temperatures are significantly lower than the eruption temperatures of their host magmas, which range from ~950-800 C. The rounded, resorbed surface morphology of many of the grains attests to the

  13. Macchine per giuoco nella proposta di Leopardi

    Directory of Open Access Journals (Sweden)

    Laura Neri

    2017-06-01

    Full Text Available Un’operetta morale di Leopardi, la Proposta di premi fatta dall’Accademia dei Sillografi, adotta il linguaggio tecnico di un bando di concorso per proporre tre premi agli inventori di tre macchine umane perfette: l’amicizia, la magnanimità, la fedeltà coniugale sono gli obiettivi delle invenzioni scientifiche. Il tono serio cela in realtà la  polemica contro l’antropocentrismo e soprattutto contro l’ottimismo del suo tempo.  One of Leopardi’s Operette morali, Proposta di premi fatta dall’Accademia dei Sillografi, adopts the gergon of a competition notice to propose three prizes to the inventors of three perfect human machines: friendship, magnanimity, conjugal fidelity are the aims of scientific inventions. The serious tone really conceals the controversy against anthropocentrism and above all against the optimism of its time.

  14. Bianco su nero. Una storia per strada

    Directory of Open Access Journals (Sweden)

    Maria Elena Buslacchi

    2013-03-01

    Full Text Available “Per raccontare questa storia bisogna partire da Odessa” – e girare il mondo, con l’immaginazione, ma anche con i piedi. A maggio 2012, a Genova, è comparsa una scritta bianca che attraversa il centro storico. Questo è il prologo. Anche se ormai sbiadita, ancora oggi è impossibile non notarla: parte proprio di fronte a Palazzo Ducale, si inoltra nei vicoli, da quelli più frequentati a quelli meno noti e battuti, termina, o meglio, s’interrompe sulla riva del mare. Dalla banchina sul porto cade in acqua. E si dice continui in Israele, dove prosegue la storia che narra, ma nessuno si è ancora preso la premura di verificare. Forse perché non conta davvero come finisca la storia: quel che conta è seguirla.

  15. Marjane Satrapi. Persépolis

    Directory of Open Access Journals (Sweden)

    Charbanou Jochum-Maghsoudnia

    2009-05-01

    Full Text Available Dans les quatre volumes de sa bande dessinée Persépolis Marjane Satrapi décrit et illustre en noir et blanc son autobiographie. Elle y superpose de manière vertigineuse et transparente les événements et les faits marquants de l’Iran contemporain qu’elle entremêle avec les vies au quotidien sous le régime des mollahs. Le récit de sa vie d’adolescente exilée fait appel à des questions universelles comme celles de l’intégration, de l’adaptation à d’autres cultures et de l’identité.Née en Iran en...

  16. Outcomes From the First Helene Fuld Health Trust National Institute for Evidence-Based Practice in Nursing and Healthcare Invitational Expert Forum.

    Science.gov (United States)

    Melnyk, Bernadette Mazurek; Gallagher-Ford, Lynn; Zellefrow, Cindy; Tucker, Sharon; Van Dromme, Laurel; Thomas, Bindu Koshy

    2018-01-16

    Even though multiple positive outcomes are the result of evidence-based care, including improvements in healthcare quality, safety, and costs, it is not consistently delivered by clinicians in healthcare systems throughout the world. In an attempt to accelerate the implementation of evidence-based practice (EBP) across the United States, an invitational Interprofessional National EBP Forum to determine major priorities for the advancement of EBP was held during the launch of the newly established Helene Fuld Health Trust National Institute for Evidence-Based Practice in Nursing and Healthcare at The Ohio State University College of Nursing. Interprofessional leaders from national organizations and federal agencies across the United States were invited to participate in the Forum. A pre-Forum survey was disseminated to participants to assess their perceptions of the state of EBP and actions necessary to speed the translation of research into real-world clinical settings. Findings from a pre-Forum survey (n = 47) indicated ongoing low implementation of EBP in U.S. healthcare settings. These findings were shared with leaders from 45 organizations and agencies who attended the Forum. Breakout groups on practice, education, implementation science, and policy discussed the findings and responded to a set of standardized questions. High-priority action tactics were identified, including the need for: (a) enhanced reimbursement for EBP, (b) more interprofessional education and skills building in EBP, and (c) leaders to prioritize EBP and fuel it with resources. The delivery of and reimbursement for evidence-based care must become a high national priority. Academic faculty across all healthcare disciplines need to teach EBP, healthcare systems must invest in EBP resources, and payers must attach reimbursement to care that is evidence-based. An action collaborative of the participating organizations has been formed to accelerate EBP across the United States to achieve the

  17. Source mechanism of small long-period events at Mount St. Helens in July 2005 using template matching, phase-weighted stacking, and full-waveform inversion

    Science.gov (United States)

    Matoza, Robin S.; Chouet, Bernard A.; Dawson, Phillip B.; Shearer, Peter M.; Haney, Matthew M.; Waite, Gregory P.; Moran, Seth C.; Mikesell, T. Dylan

    2015-09-01

    Long-period (LP, 0.5-5 Hz) seismicity, observed at volcanoes worldwide, is a recognized signature of unrest and eruption. Cyclic LP "drumbeating" was the characteristic seismicity accompanying the sustained dome-building phase of the 2004-2008 eruption of Mount St. Helens (MSH), WA. However, together with the LP drumbeating was a near-continuous, randomly occurring series of tiny LP seismic events (LP "subevents"), which may hold important additional information on the mechanism of seismogenesis at restless volcanoes. We employ template matching, phase-weighted stacking, and full-waveform inversion to image the source mechanism of one multiplet of these LP subevents at MSH in July 2005. The signal-to-noise ratios of the individual events are too low to produce reliable waveform inversion results, but the events are repetitive and can be stacked. We apply network-based template matching to 8 days of continuous velocity waveform data from 29 June to 7 July 2005 using a master event to detect 822 network triggers. We stack waveforms for 359 high-quality triggers at each station and component, using a combination of linear and phase-weighted stacking to produce clean stacks for use in waveform inversion. The derived source mechanism points to the volumetric oscillation (˜10 m3) of a subhorizontal crack located at shallow depth (˜30 m) in an area to the south of Crater Glacier in the southern portion of the breached MSH crater. A possible excitation mechanism is the sudden condensation of metastable steam from a shallow pressurized hydrothermal system as it encounters cool meteoric water in the outer parts of the edifice, perhaps supplied from snow melt.

  18. The geologic, geomorphic, and hydrologic context underlying options for long-term management of the Spirit Lake outlet near Mount St. Helens, Washington

    Science.gov (United States)

    Grant, Gordon E.; Major, Jon J.; Lewis, Sarah L.

    2017-01-01

    The 1980 eruption of Mount St. Helens produced a massive landslide and consequent pyroclastic currents, deposits of which blocked the outlet to Spirit Lake. Without an outlet, the lake began to rise, threatening a breaching of the blockage and release of a massive volume of water. To mitigate the hazard posed by the rising lake and provide an outlet, in 1984–1985 the U.S. Army Corps of Engineers bored a 2.6-km (8,500-ft) long tunnel through a bedrock ridge on the western edge of the lake. Locally, the tunnel crosses weak rock along faults, and external pressures in these weak zones have caused rock heave and support failures, which have necessitated periodic major repairs. During its more than 30-year lifetime, the tunnel has maintained the level of Spirit Lake at a safe elevation. The lake approaches its maximum safe operating level only when the tunnel closes for repair. The most recent major repair in early 2016 highlights the need for a reliable outlet that does not require repeated and expensive interventions and extended closures. The U.S. Forest Service, U.S. Army Corps of Engineers, and U.S. Geological Survey developed, reviewed, and analyzed an array of options for a long-term plan to remove the threat of catastrophic failure of the tunnel. In this report, we (1) provide background on natural hazards that can affect existing and alternative infrastructure; (2) evaluate the potential for tunnel failure and consequent breaching of the blockage posed by the current tunnel infrastructure; (3) evaluate potential consequences to downstream communities and infrastructure in the event of a catastrophic breaching of the blockage; (4) evaluate potential risks associated with alternative lake outlets; and (5) identify data and knowledge gaps that need to be addressed to fully evaluate options available to management.

  19. Source mechanism of small long-period events at Mount St. Helens in July 2005 using template matching, phase-weighted stacking, and full-waveform inversion

    Science.gov (United States)

    Matoza, Robin S.; Chouet, Bernard A.; Dawson, Phillip B.; Shearer, Peter M.; Haney, Matthew M.; Waite, Gregory P.; Moran, Seth C.; Mikesell, T. Dylan

    2015-01-01

    Long-period (LP, 0.5-5 Hz) seismicity, observed at volcanoes worldwide, is a recognized signature of unrest and eruption. Cyclic LP “drumbeating” was the characteristic seismicity accompanying the sustained dome-building phase of the 2004–2008 eruption of Mount St. Helens (MSH), WA. However, together with the LP drumbeating was a near-continuous, randomly occurring series of tiny LP seismic events (LP “subevents”), which may hold important additional information on the mechanism of seismogenesis at restless volcanoes. We employ template matching, phase-weighted stacking, and full-waveform inversion to image the source mechanism of one multiplet of these LP subevents at MSH in July 2005. The signal-to-noise ratios of the individual events are too low to produce reliable waveform-inversion results, but the events are repetitive and can be stacked. We apply network-based template matching to 8 days of continuous velocity waveform data from 29 June to 7 July 2005 using a master event to detect 822 network triggers. We stack waveforms for 359 high-quality triggers at each station and component, using a combination of linear and phase-weighted stacking to produce clean stacks for use in waveform inversion. The derived source mechanism pointsto the volumetric oscillation (~10 m3) of a subhorizontal crack located at shallow depth (~30 m) in an area to the south of Crater Glacier in the southern portion of the breached MSH crater. A possible excitation mechanism is the sudden condensation of metastable steam from a shallow pressurized hydrothermal system as it encounters cool meteoric water in the outer parts of the edifice, perhaps supplied from snow melt.

  20. Effectiveness of 3 per cent boric acid in 70 per cent alcohol versus 1 per cent clotrimazole solution in otomycosis patients: a randomised, controlled trial.

    Science.gov (United States)

    Romsaithong, S; Tomanakan, K; Tangsawad, W; Thanaviratananich, S

    2016-09-01

    To compare the clinical effectiveness and adverse events for 3 per cent boric acid in 70 per cent alcohol versus 1 per cent clotrimazole solution in the treatment of otomycosis. A total of 120 otomycosis patients were randomly assigned to receive either 1 per cent clotrimazole solution (intervention group) or 3 per cent boric acid in 70 per cent alcohol (control group) at the Khon Kaen Hospital ENT out-patient department. Treatment effectiveness was determined based on the otomicroscopic absence of fungus one week after therapy, following a single application of treatment. After 1 week of treatment, there were data for 109 participants, 54 in the clotrimazole group and 55 in the boric acid group. The absolute difference in cure rates between 1 per cent clotrimazole solution and 3 per cent boric acid in 70 per cent alcohol was 17.9 per cent (95 per cent confidence interval, 2.3 to 33.5; p = 0.028) and the number needed to treat was 6 (95 per cent confidence interval, 3.0 to 43.4). Adverse events for the two agents were comparable. One per cent clotrimazole solution is more effective than 3 per cent boric acid in 70 per cent alcohol for otomycosis treatment.

  1. Las elecciones presidenciales en Perú

    Directory of Open Access Journals (Sweden)

    Fernando TUESTA SOLDEVILLA

    2009-11-01

    Full Text Available RESUMEN: Este artículo presenta un comentario de los resultados de las elecciones presidenciales de 1995 en Perú. Después de realizar un repaso de los datos resultantes de los comicios, el autor analiza algunas de las razones que explican el amplio triunfo del presidente Fujimori, quien diluyó su imagen autoritaria en los éxitos obtenidos en materia de estabilización económica y pacificación social. Seguidamente se repasan los procesos que enmarcaron esta evolución política: el declive de los partidos políticos, la debilidad de las instituciones, la evolución de la prefencia de voto y el aumento de la participación de la mujer en el ámbito político.ABSTRACT: This article presents a comment about the results of the last presidential elections in Peru. Following an overview of the electoral data, the author analizes some of the reasons of the presidente Fujimori's victory, who diluted his autoritharian imagen behind his successful policy on subjects such as economic stabilization and terrorism. Next, he makes a reflection on the various processes which framed such a political evolution: the decline of the political parties, the weakness of the different political institutions, the changes on the electoral preferences and the increase of women's political participation.

  2. Quali interlocutori per ’inchiesta sociale?

    Directory of Open Access Journals (Sweden)

    Piano b

    2009-06-01

    Full Text Available La chiusura delle fabbriche, la scomparsa della classe operaia, la riconversione dei capannoni dismessi. La città post-industriale, dei servizi, dei centri commerciali. L’immigrazione, la città multietnica, la questione della sicurezza, l’insicurezza percepita dai cittadini italiani nei propri quartieri. Il lavoro precario, il consumismo, la speculazione edilizia, l’inquinamento, la fine delle “comunità”, la parcellizzazione dei rapporti sociali. Parole che da anni leggiamo e ascoltiamo e che ci sembra descrivano in modo appropriato i fenomeni e le trasformazioni in atto nelle città italiane. Ma anche parole di “senso comune”, che diamo per scontate. Descrizioni dei mondi in cui viviamo che è difficile mettere in discussione, che solitamente vengono evocate piuttosto che argomentate. Parole che basta nominare perché tutti bene o male capiscano di cosa si sta parlando. Che ci mostrano in maniera inequivocabile la direzione nella quale sta andando la società in cui viviamo. E, aspetto non secondario, inibiscono l’azione politica collettiva e la nascita di progetti di segno diverso.

  3. Per- and Polyfluoroalkyl Substances (PFAS): Sampling ...

    Science.gov (United States)

    Per- and polyfluoroalkyl substances (PFAS) are a large group of manufactured compounds used in a variety of industries, such as aerospace, automotive, textiles, and electronics, and are used in some food packaging and firefighting materials. For example, they may be used to make products more resistant to stains, grease and water. In the environment, some PFAS break down very slowly, if at all, allowing bioaccumulation (concentration) to occur in humans and wildlife. Some have been found to be toxic to laboratory animals, producing reproductive, developmental, and systemic effects in laboratory tests. EPA's methods for analyzing PFAS in environmental media are in various stages of development. This technical brief summarizes the work being done to develop robust analytical methods for groundwater, surface water, wastewater, and solids, including soils, sediments, and biosolids. The U.S. Environmental Protection Agency’s (EPA) methods for analyzing PFAS in environmental media are in various stages of development. EPA is working to develop robust analytical methods for groundwater, surface water, wastewater, and solids, including soils, sediments, and biosolids.

  4. App per l’infanzia: linee guida per una progettazione efficace

    Directory of Open Access Journals (Sweden)

    Silvia Carbotti

    2015-04-01

    Full Text Available I bambini sono affascinati dai tablet e dai dispositivi mobili di ultima generazione. Allo stesso modo si trovano in una fase della vita in cui iniziano a formare preferenze e competenze così come ad esprimere le proprie emozioni e sensazioni attraverso la parola. Questo articolo descrive le strategie per la creazione di applicazioni (app per bambini che siano non solo divertenti ma anche efficaci per esperienze significative che li coinvolgano a livello cognitivo ed emotivo. Quando si disegnano app rivolte ai bambini occorre ricordare che i più piccoli non hanno ancora chiaro come dovrebbe funzionare una specifica tecnologia ma si stanno formando un’opinione a riguardo. Diventa dunque necessario considerare alcuni principi di interaction e visual design affinché l’esperienza vissuta con il tablet incontri bisogni e competenze.

  5. Studio di prototipo di calorimetro per neutroni per l'esperimento ALICE

    CERN Document Server

    Arnaldi, R; Cicalò, C; Cortese, P; De Falco, A; Dellacasa, G; De Marco, N; Gallio, M; Macciotta, P; Masoni, A; Musso, A; Oppedisano, C; Piccotti, A; Puddu, G; Scomparin, E; Siddi, S; Serci, E; Soave, C; Usai, G L; Vercellin, Ermanno

    1999-01-01

    ALICE e uno dei quattro esperimenti previsti ad LHC, al CERN, il cui scopo e lo studio delle osservabili che danno informazioni rilevanti sulla formazione del quark gluon plasma, che potrebbe essere prodotto in collisioni centrali Pb-Pb, di energia nel centro di massa di 5.5 A TeV.Il parametro di impatto di tali collisioni verra determinato grazie ad un insieme di calorimetri per protoni e neutroni che misureranno l'energia portata in avanti dai nucleoni non interagenti(spettatori).E' stato costruito un prototipo di calometro per neutroni, formato da piani di fibre di quarzo, posti a 45 gradi rispetto all'asse del fascio e inframmezzati da piani di materiale passivo denso(tungsteno). La luce Cerenkov prodotta nelle fibre dallo sciame sviluppato nel materiale passivo,viene raccolta da guide ottiche in aria.Verranno presentati i rilustati di un test previsto al CERN SPS per il luglio 1999.

  6. Desenvolupament d'un plugin per a Chrome per xifrar/desxifrar correus utilitzant Gmail

    OpenAIRE

    Martín Toral, Boris

    2016-01-01

    L'objecte del treball final de carrera és desenvolupar un plugin o extensió per a Chrome per a poder xifrar/desxifrar missatges utilitzant el correu web de Gmail. S'adjunta memòria, presentació virtual i codi font de l'extensió desenvolupada. The purpose of the final project work is to develop a plugin or extension for Chrome in order to encrypt/decrypt messages using the Gmail web mail. Attached report, presentation and virtual source extension developed. El objetivo del trabajo final ...

  7. Processi e temi per una smartculturalcity

    Directory of Open Access Journals (Sweden)

    Marco Gaiani

    2013-12-01

    Full Text Available ItIn questo contributo si assume il concetto di ‘Smart City’ come paradigma per sottolineare l’importanza che riveste l’Information Technology (IT di prima e seconda generazione ai fini del miglioramento del profilo competitivo di una città, soprattutto per ciò che riguarda il patrimonio culturale in essa contenuto. Si estende così il costrutto di William Mitchell dalla città al patrimonio culturale precisando, anche attraverso alcune esemplificazioni, come le Smart IT modifichino profondamente le modalità di trasmissione, acquisizione e produzione della conoscenza trasformando quest’ultima in un fattore di sviluppo economico, sociale e culturale. Non secondariamente esse contribuiscono alla soluzione di problemi tipici dei processi connessi al lifecycle dei beni culturali: la loro conservazione, fruizione, comunicazione e gestione, nonché quelli connessi alla grande quantità di dati e alla loro eterogeneità. Infine, i nuovi sistemi come l’Internet of Things o il fenomeno dello User Generated Content permettono di concepire i beni culturali come ‘smart cultural objects’ e la generazione di conoscenza da parte degli utenti. Tutto ciò, se da una parte amplifica le possibilità di interazione tra soggetti e oggetti della conoscenza, dall’altra ne modifica radicalmente le modalità. Questo deve sollecitare le Università, le Istituzioni culturali e le Imprese a collaborare, nel prossimo futuro, sugli usi possibili delle soluzioni tecnologiche prospettate, in vista dell’affermazione di una più consapevole e partecipata cultura della sostenibilità del nostro patrimonio culturale.EnThis contribution takes the concept of ' Smart City ' as a paradigm in order to underline the importance of first and second generation of Information Technology (IT for the purpose of improving the competitiveness of a city, especially for what concerns its Cultural Heritage (CH. We extends so the construct of William Mitchell from the city to

  8. INTERSTELLAR ABUNDANCES TOWARD X Per, REVISITED

    Energy Technology Data Exchange (ETDEWEB)

    Valencic, Lynne A. [Johns Hopkins University, Baltimore, MD 21218 (United States); Smith, Randall K. [Smithsonian Astrophysical Observatory, Cambridge, MA 02138 (United States)

    2013-06-10

    The nearby X-ray binary X Per (HD 24534) provides a useful beacon with which to examine dust grain types and measure elemental abundances in the local interstellar medium (ISM). The absorption features of O, Fe, Mg, and Si along this line of sight were measured using spectra from the Chandra X-Ray Observatory's LETG/ACIS-S and XMM-Newton's RGS instruments, and the Spex software package. The spectra were fit with dust analogs measured in the laboratory. The O, Mg, and Si abundances were compared to those from standard references, and the O abundance was compared to that along lines of sight toward other X-ray binaries. The results are as follows. First, it was found that a combination of MgSiO{sub 3} (enstatite) and Mg{sub 1.6}Fe{sub 0.4}SiO{sub 4} (olivine) provided the best fit to the O K edge, with N(MgSiO{sub 3})/N(Mg{sub 1.6}Fe{sub 0.4}SiO{sub 4}) = 3.4. Second, the Fe L edge could be fit with models that included metallic iron, but it was not well described by the laboratory spectra currently available. Third, the total abundances of O, Mg, and Si were in very good agreement with that of recently re-analyzed B stars, suggesting that they are good indicators of abundances in the local ISM, and the depletions were also in agreement with expected values for the diffuse ISM. Finally, the O abundances found from X-ray binary absorption spectra show a similar correlation with Galactocentric distances as seen in other objects.

  9. Per una lettura laica della teologia medievale

    Directory of Open Access Journals (Sweden)

    Dino Buzzetti

    2010-02-01

    Full Text Available È possibile operare una forma di epoché sui concetti di carattere teologico? Ed è possibile riflettere sulla loro importanza, prescindendo dalla loro portata religiosa? I concetti teologici riescono a dirci qualcosa, se si trascura il loro riferimento essenziale alla nostra relazione con un essere divino? La risposta a queste domande consente di comprendere che cosa significhi essere un studioso laico della filosofia medievale, mentre è impossibile discutere tale problema senza prendere in considerazione anche la teologia medievale. Tutto ciò dunque riguarda non solo la natura della teologia, ma anche l’idea stessa di laicità. Dunque una storiografia del pensiero medievale pienamente consapevole di se stessa deve studiare il discorso teologico e affrontare in profondità la portata teorica di questo problema. Si può concludere che per una lettura laica della teologia medievale è paradossalmente essenziale cogliere proprio il senso intimo del pensiero religioso e le forme storicamente determinate della sua effettiva concettualizzazione.  Is some form of epoché possible on theological concepts? In which way? Is it possible consider their importance leaving their religious scope aside? Can the theological concepts tell us something unless we consider their essential reference to our relationship with a divine being? The answer to these questions let us to understand what means to be a secular (laico scholar of medieval philosophy. It's impossible conversely to discuss this problem without dealing with medieval theology. And this concerns not only the nature of theology, but also and deeply the same idea of secularism (laicità. Therefore a fully aware historiography of medieval thought has to understand the theological speech and to encounter the depth of this theoretical question. So we can conclude that for a secular reading of the medieval theology is paradoxically essential to catch the intimate sense of religious thought and the

  10. Hot pressing and lithification of gouge during the Mount St. Helens 2004-2008 eruption: insights from high temperature deformation experiments

    Science.gov (United States)

    Ryan, Amy G.; Russell, James K.; Heap, Michael J.

    2017-04-01

    We present results from an experimental program designed to investigate the timescales, conditions and mechanisms responsible for the densification and lithification of volcanic gouge at Mount St. Helens (MSH). From 2004-2008, MSH produced a series of lava domes/spines that were mantled by thick layers of gouge resulting from fracturing and cataclasis at the conduit-wall rock interface. The gouge comprises fine crystal-rich rock powder containing little to no glass. The erupted gouge carapace is texturally diverse, and varies from loose granular material to moderately indurated coherent rock to fine-grained cataclasite within tens of centimeters. The spatial association of these materials suggests that the originally unconsolidated conduit-fault gouge is densified and lithified during ascent to the surface. At present the conditions, timescales and mechanisms for lithification of the glass-poor materials are unknown. Here, we present results from a series of high-temperature (T) uniaxial deformation experiments performed on natural gouge collected from MSH (spine 5). The experiments are intended to (1) establish the feasibility of experimentally densifying/lithifying natural gouge materials at laboratory conditions approximating those within the MSH conduit, and to (2) constrain the effects of T, load and time on the extents, rates and mechanisms of densification. Our experimental conditions include T up to 800°C (Tspines 4, 5 and 7 at MSH, tying the results from the lab to the natural system. Initial results show an increase in the amount and rate of densification with increasing experimental T, with an increase in sample shortening (axial strain) between experiments completed at 650 and 850°C. This change in axial strain-time curves with increasing T suggests the inclusion of a second densification process, aside from mechanical compaction, at elevated T. It is our hypothesis that solid-state sintering, a process wherein crystalline particles are fused together

  11. Field-trip guide for exploring pyroclastic density current deposits from the May 18, 1980, eruption of Mount St. Helens, Washington

    Science.gov (United States)

    Brand, Brittany D.; Pollock, Nicholas; Sarocchi, Damiano; Dufek, Josef; Clynne, Michael A.

    2017-07-05

    Pyroclastic density currents (PDCs) are one of the most dangerous phenomena associated with explosive volcanism. To help constrain damage potential, a combination of field studies, laboratory experiments, and numerical modeling are used to establish conditions that influence PDC dynamics and depositional processes, including runout distance. The objective of this field trip is to explore field relations that may constrain PDCs at the time of emplacement.The PDC deposits from the May 18, 1980, eruption of Mount St. Helens are well exposed along the steep flanks (10–30° slopes) and across the pumice plain (5–12° slopes) as far as 8 km north of the volcano. The pumice plain deposits represent deposition from a series of concentrated PDCs and are primarily thick (3–12 m), massive, and poorly sorted. In contrast, the steep east-flank deposits are stratified to cross-stratified, suggesting deposition from PDCs where turbulence strongly influenced transport and depositional processes.The PDCs that descended the west flank were largely nondepositional; they maintained a higher flow energy and carrying capacity than PDCs funneled through the main breach, as evidenced by the higher concentration of large blocks in their deposits. The PDC from the west flank collided with PDCs funneled through the breach at various points along the pumice plain. Evidence for flow collision will be explored and debated throughout the field trip.Evidence for substrate erosion and entrainment is found (1) along the steep eastern flank of the volcano, which has a higher degree of rough, irregular topography relative to the west flanks where PDCs were likely nonerosive, (2) where PDCs encountered debris-avalanche hummocks across the pumice plain, and (3) where PDCs eroded and entrained material deposited by PDCs produced during earlier phases of the eruption. Two features interpreted as large-scale (tens of meters wide) levees and a large (~200 m wide) channel scour-and-fill feature

  12. Using program impact pathways to understand and improve program delivery, utilization, and potential for impact of Helen Keller International's homestead food production program in Cambodia.

    Science.gov (United States)

    Olney, Deanna K; Vicheka, Sao; Kro, Meng; Chakriya, Chhom; Kroeun, Hou; Hoing, Ly Sok; Talukder, Aminzzaman; Quinn, Victoria; Iannotti, Lora; Becker, Elisabeth; Roopnaraine, Terry

    2013-06-01

    Evidence of the impact of homestead food production programs on nutrition outcomes such as anemia and growth is scant. In the absence of information on program impact pathways, it is difficult to understand why these programs, which have been successful in increasing intake of micronutrient-rich foods, have had such limited documented impact on nutrition outcomes. To conduct a process evaluation of Helen Keller International's (HKI's) homestead food production program in Cambodia to assess whether the program was operating as planned (in terms of design, delivery, and utilization) and to identify ways in which the program might need to be strengthened in order to increase its potential for impact. A program theory framework, which laid out the primary components along the hypothesized program impact pathways, was developed in collaboration with HKI and used to design the research. Semistructured interviews and focus group discussions with program beneficiaries (n = 36 and 12, respectively), nonbeneficiaries (n = 12), and program implementers (n = 17 and 2, respectively) and observations of key program delivery points, including health and nutrition training sessions (n = 6), village model farms (n = 6), and household gardens of beneficiaries (n = 36) and nonbeneficiaries (n = 12), were conducted to assess the delivery and utilization of the primary program components along the impact pathways. The majority of program components were being delivered and utilized as planned. However, challenges with some of the key components posited to improve outcomes such as anemia and growth were noted. Among these were a gap in the expected pathway from poultry production to increased intake of eggs and poultry meat, and some weaknesses in the delivery of the health and nutrition training sessions and related improvements in knowledge among the village health volunteers and beneficiaries. Although the program has been successful in delivering the majority of the program

  13. 38 CFR 61.33 - Payment of per diem.

    Science.gov (United States)

    2010-07-01

    ...) VA HOMELESS PROVIDERS GRANT AND PER DIEM PROGRAM § 61.33 Payment of per diem. (a) A capital grant... non-grant recipient for those homeless veterans— (1) Who VA referred to the grant recipient or non... per diem recipient for furnishing services to homeless veterans that the per diem recipient certifies...

  14. 38 CFR 61.30 - Per diem-general.

    Science.gov (United States)

    2010-07-01

    ... HOMELESS PROVIDERS GRANT AND PER DIEM PROGRAM § 61.30 Per diem-general. VA provides per diem funds to... of supportive housing or services after November 10, 1992 so they can assist homeless veterans by... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Per diem-general. 61.30...

  15. La correlazione di immagini per la generazione di modelli 3D per il patrimonio costruito

    Directory of Open Access Journals (Sweden)

    Filiberto Chiabrando

    2013-06-01

    Full Text Available I modelli dettagliati 3D derivati dalle tecniche di rilievo metrico digitale vengono impiegati con crescente sviluppo in moltissimi campi applicativi, dal rilievo del territorio e delle aree urbane, per i quali sono stati testati e messi a punto processi di elaborazione di dati satellitari o aerei, ai beni paesaggistici strettamente correlati al territorio fino alla sfera dei Beni Culturali. L’elevato dettaglio ottenibile delle superfici e la loro accuratezza li rende particolarmente stimati per un largo insieme di finalizzazioni. Questo contributo esamina in particolare i cosiddetti sensori passivi e i relativi sistemi di correlazione d’immagine, poiché l’efficacia dei modelli ottenibili, il basso costo e la ricchezza d’informazione offerta, rendono questi modelli di importanza strategica nei settori caratterizzati da scarse risorse come quello dei Beni Culturali. Dopo una breve rassegna dei metodi disponibili, è riportato un esame dell’applicazione degli algoritmi di base implementati in due diffusi software; a corredo alcune valutazioni circa le strategie di matching in riferimento alle geometrie di acquisizione, alle tipologie di materiali e finiture superficiali degli oggetti rilevati. Una sezione sperimentale finale descrive alcuni test ed una loro lettura critica per la comparazione di differenti soluzioni da riferire a diversi casi studio.

  16. PER-8, a Novel Extended-Spectrum β-Lactamase PER Variant, from an Acinetobacter baumannii Clinical Isolate in Nepal.

    Science.gov (United States)

    Tada, Tatsuya; Shrestha, Shovita; Shimada, Kayo; Ohara, Hiroshi; Sherchand, Jeevan B; Pokhrel, Bharat M; Kirikae, Teruo

    2017-03-01

    A novel PER-type extended-spectrum β-lactamase, PER-8, was identified in an Acinetobacter baumannii clinical isolate obtained in Nepal. The amino acid sequence of PER-8 has a substitution at position 39 (Gly to Glu) compared with that of PER-7. The kcat/Km ratio of PER-8 for aztreonam was lower than that of PER-7, while the kcat/Km ratio of PER-8 for imipenem was higher than that of PER-7. The genomic environment surrounding blaPER-8 was intI1 blaPSE-1qacEDI sulI ISCR1-blaPER-8gts sulI orfX on a 100-kb plasmid. Copyright © 2017 American Society for Microbiology.

  17. Perú-Chile: imágenes mutuas (Perú-Chile: mutual images

    Directory of Open Access Journals (Sweden)

    Álvaro González Riesle

    2014-06-01

    Full Text Available RESUMEN: A partir de los enfoques sobe Expansionismo-Revanchismo de Elizondo y las Imágenes en Espejo de Scott, se analizaron los contenidos de blogs referentes a imágenes mutuas entre Perú y Chile, comprendidos a partir de la fecha (16-01-2008 de presentación por parte del Perú de la Demanda ante el Tribunal de la Haya para la solución del Diferendo Limítrofe con Chile, hasta el 30-03-2011. Se han registrado intensas y variadas manifestaciones de hostilidad mutua, que respaldan la vigencia de la dinámica Expansionismo-Revanchismo en las imágenes mutuas entre Chile y Perú en los blogs analizados. Paralelamente, se detectaron contenidos correspondientes a actitudes integracionistas entre ambos países. Los resultados fundamentan la utilidad del enfoque de las Imágenes en Espejo como instrumento para el análisis de contenido de blogs portadores de mensajes de hostilidad e integración entre ambos países. Se propone una estrategia psicosocial binacional para desactivar la dinámica Expansionismo- revanchismo que contribuiría a producir catastróficas consecuencias para las generaciones actuales y futuras de ambos países; y, promover la integración fronteriza entre Tacna (Perú y Arica (Chile. ABSTRACT: The contents of blogs relating to mutual images between Peru and Chile were analyzed from the approaches about Expansionism – Revanchism of Elizondo, and The images on the mirror of Scott, included the date of the presentation (January 16th, 2008 by Peru of the demand before the International Court of Justice at the Hague for the solution of the border dispute with Chile until March 30th, 2011. There have been intense and varied manifestations of mutual hostility that support the validity of Expansionism-Revanchism dynamics in the mutual images between Chile and Peru in the analyzed blogs. At the same time, it was detected content corresponding to integrationist attitudes between the two countries. The results underlie the utility

  18. L’ICF-CY per la progettazione inclusiva per gli alunni con DSA

    Directory of Open Access Journals (Sweden)

    Marina Chiaro

    2013-09-01

    Full Text Available Il lavoro presenta i principali risultati di una ricerca a carattere teorico-esplorativo, finalizzata a valutare quanto lo strumento dell’International Classification of Functioning, Disability and Health for Children and Youth (ICF-CY sia conosciuto ed utilizzato nei diversi contesti educativi per l’osservazione degli allievi e del loro “funzionamento” in senso dinamico-evolutivo, in interazione con i fattori ambientali, e finalizzato ad una progettazione educativo-didattica significativamente orientata alla prospettiva inclusiva. A tal fine sono stati intervistati gli insegnanti delle scuole di ogni ordine e grado del Lazio iscritti al Master in Didattica e Psicopedagogia per gli alunni con Disturbi Specifici di Apprendimento (DSA presso l’Università degli Studi di Roma Tre. La scelta è coerente con la direttiva MIUR del 2012 dove viene considerato rilevante ai fini della individuazione dei Bisogni Educativi Speciali dell’alunno, ed in particolare degli allievi con DSA, l’apporto, anche sul piano culturale del modello diagnostico ICF-CY che considera la persona nella sua totalità, in una prospettiva bio-psico-sociale.

  19. L’otto per mille nella nuova relazione della Corte dei Conti: spunti per una riforma

    Directory of Open Access Journals (Sweden)

    Giuseppe Casuscelli

    2015-12-01

    Full Text Available A chiare lettere - Transizioni   La Corte dei Conti - organo neutrale, autonomo e indipendente sia dal Governo sia dal Parlamento, con il compito istituzionale di sottoporre a controllo la gestione delle risorse pubbliche allo scopo di “perseguire l’utilizzo appropriato ed efficace dei fondi pubblici, la ricerca di una gestione finanziaria rigorosa, la regolarità dell’azione amministrativa e l’informazione dei poteri pubblici e della popolazione tramite la pubblicazione di relazioni obiettive” -, per la seconda volta ha reso pubblica, di agevole accesso e di piana comprensione la «Relazione concernente la “Destinazione e gestione dell'8 per mille: le misure consequenziali finalizzate alla rimozione delle disfunzioni rilevate”». Così facendo, la Corte ha osservato in concreto la regola dell’efficienza e della trasparenza amministrativa, e ha proseguito nell'intento informativo avviato con la pubblicazione della relazione dello scorso anno, confermandolo e rafforzandolo.

  20. Parallel search engine optimisation and pay-per-click campaigns: A comparison of cost per acquisition

    Directory of Open Access Journals (Sweden)

    Wouter T. Kritzinger

    2017-01-01

    Full Text Available Background: It is imperative that commercial websites should rank highly in search engine result pages because these provide the main entry point to paying customers. There are two main methods to achieve high rankings: search engine optimisation (SEO and pay-per-click (PPC systems. Both require a financial investment – SEO mainly at the beginning, and PPC spread over time in regular amounts. If marketing budgets are applied in the wrong area, this could lead to losses and possibly financial ruin.Objectives: The objective of this research was to investigate, using three real-world case studies, the actual expenditure on and income from both SEO and PPC systems. These figures were then compared, and specifically, the cost per acquisition (CPA was used to decide which system yielded the best results.Methodology: Three diverse websites were chosen, and analytics data for all three were compared over a 3-month period. Calculations were performed to reduce the figures to single ratios, to make comparisons between them possible.Results: Some of the resultant ratios varied widely between websites. However, the CPA was shown to be on average 52.1 times lower for SEO than for PPC systems.Conclusion: It was concluded that SEO should be the marketing system of preference for e-commerce-based websites. However, there are cases where PPC would yield better results – when instant traffic is required, and when a large initial expenditure is not possible.

  1. Per una teoria politica dell’impresa cooperativa

    National Research Council Canada - National Science Library

    Stefano Zan

    2014-01-01

    Il saggio propone una traccia di ricerca per l’elaborazione di una teoria politica della cooperazione, ovvero per la considerazione del fenomeno cooperativo come caratterizzato da una peculiare modalità...

  2. Per-patient-per-month drug costs in Medicare Part D protected classes.

    Science.gov (United States)

    Mucha, Lisa; Masia, Neal A; Axelsen, Kirsten J

    2006-01-01

    The objective of this study was to estimate the per-patient-per-month (PPPM) costs of medications in the six Medicare Part D protected classes based on findings among Medicare and dual eligible beneficiaries with drug coverage before the enactment of the benefit. Data were from the Thomson Medstat MarketScan Medicare and Medicaid claims databases. The study sample was constructed by identifying patients who were enrolled either in Medicare or dually in Medicare and Medicaid. PPPM costs were calculated for each protected class. Drugs covered under Part B were excluded. PPPM aggregated costs within each class. The classes in which generic formulations are available (antidepressants and anticonvulsants) show low PPPM costs ($ US 45.31 and $ US 50.97, respectively). The most expensive class is the antiretrovirals ($ US 829.73). This class is the costliest for all dual eligible patients including those aged 64 years and under. Among the dual eligible aged 65 years and older, the immunosuppressants are the most expensive class. The same result is seen qualitatively in the Medicare group. PPPM costs are not uniformly high among the protected classes. The claims data in this study allowed a 'real world' check of how much the protected classes may impact the finances of Part D. There are differences within the classes between the dual eligible and Medicare patients, and also within the dual eligible by age. This is an important message to policy makers that a change to the structure of the protected classes in Part D may have differential effects across classes and also within classes.

  3. Hydrogen isotope investigation of amphibole and glass in dacite magmas erupted in 1980-1986 and 2005 at Mount St. Helens, Washington

    Science.gov (United States)

    Underwood, S.J.; Feeley, T.C.; Clynne, M.A.

    2013-01-01

    In active, shallow, sub-volcanic magma conduits the extent of the dehydrogenation–oxidation reaction in amphibole phenocrysts is controlled by energetic processes that cause crystal lattice damage or conditions that increase hydrogen diffusivity in magmatic phases. Amphibole phenocrysts separated from dacitic volcanic rocks erupted from 1980 to 1986 and in 2005 at Mount St. Helens (MSH) were analyzed for δD, water content and Fe3+/Fe2+, and fragments of glassy groundmass were analyzed for δD and water content. Changes in amphibole δD values through time are evaluated within the context of carefully observed volcanic eruption behavior and published petrological and geochemical investigations. Driving forces for amphibole dehydrogenation include increase in magma oxygen fugacity, decrease in amphibole hydrogen fugacity, or both. The phenocryst amphibole (δD value c. –57‰ and 2 wt % H2O) in the white fallout pumice of the May 18, 1980 plinian eruptive phase is probably little modified during rapid magma ascent up an ∼7 km conduit. Younger volcanic rocks incorporate some shallowly degassed dacitic magma from earlier pulses, based on amphibole phenocryst populations that exhibit varying degrees of dehydrogenation. Pyroclastic rocks from explosive eruptions in June–October 1980 have elevated abundances of mottled amphibole phenocrysts (peaking in some pyroclastic rocks erupted on July 22, 1980), and extensive amphibole dehydrogenation is linked to crystal damage from vesiculation and pyroclastic fountain collapse that increased effective hydrogen diffusion in amphibole. Multiple amphibole δD populations in many 1980 pyroclastic rocks combined with their groundmass characteristics (e.g. mixed pumice textures) support models of shallow mixing prior to, or during, eruption as new, volatile-rich magma pulses blended with more oxidized, degassed magma. Amphibole dehydrogenation is quenched at the top surface of MSH dacite lava lobes, but the diversity in the

  4. Putting zircon surface geochronology and geochemistry in textural context using 3D Xray tomography: Probing the magmatic history of Mount St. Helens

    Science.gov (United States)

    Claiborne, L. L.; Wooden, J. L.; Miller, C. F.; Gualda, G. A.; Clynne, M. A.; Flanagan, D. M.

    2010-12-01

    Zircon U-Series and U-Pb geochronology from 25 samples spanning the eruptive history of Mount St. Helens volcano (MSH) reveal complex and wide-ranging age populations, suggesting that some magmas intruded beneath MSH are stored for up to a few 100 kyr before being rejuvenated, recycled into younger hot magmas, and erupted (Claiborne et al., 2010). The compositions of these zircons record thermal and chemical transitions in the magmatic system independent of the eruptive behavior. An apparent paucity of eruption-age zircon precluded assessment of near-eruption magmatic conditions and suggested that zircon was undersaturated in all magmas just prior to eruption or that zircons were not cognate to the erupted magmas. However, this could be an artifact of traditional SHRIMP methods that use a 15 to 40 micron ion beam to analyze interiors of polished grains and therefore cannot access micrometer-scale outer rims that may represent final growth. To address these possibilities, we analyzed the outermost rims of zircon from 6 of the 25 eruptive units by pressing grains into indium and analyzing their surfaces. In 3 samples, zircon growth within error of or less than the previously estimated eruption age was identified. In 3 samples, the surface ages and chemistry were similar to the older zircon interiors. Each sample exhibited variation in surface ages and compositions among grains, including some surface ages more than 10 kyr older than eruption. This variation within samples indicates that the zircon in an erupted magma experienced different conditions prior to eruption, a conclusion also supported by the varied external morphology and grain size within individual samples (rounded vs. euhedral, glass-covered vs. clean). In order to determine the source of these variations in surface composition and age, it was necessary to place the zircons in textural context. Since zircons are scarce in MSH rocks and rarely visible in thin section, we used differential absorption x

  5. 38 CFR 61.31 - Application for per diem.

    Science.gov (United States)

    2010-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Application for per diem. 61.31 Section 61.31 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS (CONTINUED) VA HOMELESS PROVIDERS GRANT AND PER DIEM PROGRAM § 61.31 Application for per diem. (a) To apply for...

  6. 33 CFR 5.57 - Traveling expenses and per diem.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Traveling expenses and per diem... GENERAL COAST GUARD AUXILIARY § 5.57 Traveling expenses and per diem. A member of the Auxiliary, when assigned to specific duties, may be paid actual necessary traveling expenses, including a per diem...

  7. 36 CFR 1150.48 - PER: Citation, answer, amendment.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false PER: Citation, answer...; Pleadings and Motions § 1150.48 PER: Citation, answer, amendment. (a) Unless otherwise specified, other..., the citation shall request PER when it appears to the Executive Director that immediate and...

  8. Kooli roll vaimse tervise edendamisel ja riskikäitumise ennetamisel / Merike Sisask

    Index Scriptorium Estoniae

    Sisask, Merike, 1968-

    2012-01-01

    Eestis läbi viidud Euroopa Komisjoni projektist SEYLE (Saving and Empowering Young Lives in Europe). Selle käigus rakendati õpilastele vanuses 14-15 a. kolme erinevat sekkumismudelit, mille eesmärk oli edendada nende vaimset tervist ja vähendada riskikäitumist

  9. Internet - kas vaimse tervise edendamise suurepärane tööriist? / Airi Mitendorf

    Index Scriptorium Estoniae

    Mitendorf, Airi, 1974-

    2012-01-01

    Üleeuroopalise terviseprogrammi projekti SUPREME (Suicide Prevention by Internet and Media Based Mental Health Promotion) raames kaardistati veebileheküljed, mis avanesid märksõnadele suitsiid ja enesetapp

  10. Maris Jesse üks 34st maailma tervise-otsustajast / Maris Jesse

    Index Scriptorium Estoniae

    Jesse, Maris, 1968-

    2009-01-01

    21. mail Eesti esindajana Maailma Terviseorganisatsiooni täitevkogu liikmeks kinnitatud Maris Jesse vastab küsimustele, mis puudutavad tema tööd uuel ametikohal, valitsuskriisi Eestis, suhtumist proua Evelin Ilvese meditsiiniteemalistesse seisukohtadesse

  11. Pärnu hotell-veekeskus Tervise Paradiis / Tüüne-Kristin Vaikla

    Index Scriptorium Estoniae

    Vaikla, Tüüne-Kristin, 1961-

    2005-01-01

    Pärnus Side t. 14 asuva hotelli-veekeskuse arhitekt on Raivo Puusepp. Sisekujundus, logo, infograafika: Tüüne-Kristin ja Urmo Vaikla, OÜ Vaikla Stuudio. Ehitaja: AS Merko Ehitus. Hotellitubade mööbel ja valamud, retseptsioonide letid, restorani-baaride lauad, sohvad, lobby vaibad on kavandatud spetsiaalselt sellele objektile. T.-K. ja U. Vaiklast, Vaikla Stuudio sisearhitektuurseid töid. Ill.: plaan, 28 värv. vaadet

  12. Tervisesüsteemi rahastamise väljakutsed ja võimalused Euroopas / Joseph Kutzin

    Index Scriptorium Estoniae

    Kutzin, Joseph

    2007-01-01

    Maailma Terviseorganisatsiooni Euroopa regionaalbüroo nõuniku hinnangul ei saa Eesti jääda lootma ainult palgal põhinevale maksustamisele kui ainsale ravikindlustuse rahastamise allikale. Tervishoiu rahastamiseks tuleb leida erinevaid allikaid. Ettekanne konverentsil "15 aastat ravikindlustuse süsteemi Eestis"

  13. Activating PER repressor through a DBT-directed phosphorylation switch.

    Directory of Open Access Journals (Sweden)

    Saul Kivimäe

    2008-07-01

    Full Text Available Protein phosphorylation plays an essential role in the generation of circadian rhythms, regulating the stability, activity, and subcellular localization of certain proteins that constitute the biological clock. This study examines the role of the protein kinase Doubletime (DBT, a Drosophila ortholog of human casein kinase I (CKIepsilon/delta. An enzymatically active DBT protein is shown to directly phosphorylate the Drosophila clock protein Period (PER. DBT-dependent phosphorylation sites are identified within PER, and their functional significance is assessed in a cultured cell system and in vivo. The per(S mutation, which is associated with short-period (19-h circadian rhythms, alters a key phosphorylation target within PER. Inspection of this and neighboring sequence variants indicates that several DBT-directed phosphorylations regulate PER activity in an integrated fashion: Alternative phosphorylations of two adjoining sequence motifs appear to be associated with switch-like changes in PER stability and repressor function.

  14. Mentalità stratigrafica e progetti per la conoscenza e per la conservazione

    Directory of Open Access Journals (Sweden)

    Pertot, Gianfranco

    2002-12-01

    Full Text Available The present work is made to show a didactic experience acquired by the authors at the Universities of Milan and Brescia (Italy in the sphere of teaching Architectural Restoration. The peculiar aspect of research is the attempt to apply not only the procedures of archeological stratigraphy but also the “stratigraphical mentality” to the project of conservation and re-use of architecture. Introducing and using, for example, new models of archeological stratigraphy lecture of the buildings expressed for the requirements of conservation and re-use, in proposing the new index-codes of Phases Intersides and Associated Stratigraphical Unity. The authors finally put forward some comments about the so called “archaological” Restoration.Gli autori presentano i risultati più significativi di una ricerca svolta presso le Università di Milano e di Brescia, nell’ambito dei corsi di Restauro architettonico. Fra i principali obiettivi dello studio e delle esperienze didattiche correlate vi è il tentativo non solo di utilizzare le procedure dell’archeologia stratigrafica, per quanto utile e possibile, nella complessa serie di operazioni che segna la redazione di un progetto di conservazione e di riuso, ma di trasferirvi anche quella che si può definire come “mentalità stratigrafica”. In particolare considerando nuovi codici, quali le Interfacce di Fase e le Unità Stratigrafiche Associate. A corredo di queste argomentazioni vengono anche svolte alcune considerazioni in merito al cosiddetto “Restauro archeologico”

  15. Visitantes florais de Lagerstroemia speciosa Pers: (Lythraceae Floral visitors in Lagerstroemia speciosa Pers: (Lythraceae

    Directory of Open Access Journals (Sweden)

    Maria de Jesus Vitali-Veiga

    1999-06-01

    Full Text Available Studies were carried out with Lagerstroemia speciosa Pers. on floral reproductive systems, diversity and constancy of visiting insects at different hours of day, the behaviour of these insects at the flowers and the influence of these environmental factors in relation to their visits. The fenology, anthesis and others particularity of this vegetal species was studied. A great diversity of insects was verified visiting the flowers with the predominance of bees. The most frequent and constant species encountered were: Nannotrigona testaceicornis (Lepeletier, 1836 (40,2%, Tetragonisca angustula (Latreille, 1811 (16,9%, Apis mellifera Linnaeus, 1758 (11,8%, Plebeia droryana (Friese, 1900 (9,1 % e Exomalopsis fulvofasciata (Smith, 1879 (8,5%. The blossoms possessis features of melittophily syndrome and diurnal anthesis. The environmental factors influence the insects foraging activity, mainly temperature, light, time of day, humidity and wind speed. The effective pollinators were the large insects like Bombus morio (Swederus, 1787, Bombus atratus (Franklin, 1913, Centris tarsata (Smith, 1874, Centris flavifrons Fabricius, 1775, Xylocopa suspecta Camargo & Moure, 1988, Xylocopa frontalis (Olivier, 1789 and Eulaema nigrita Lepeletier, 1841.

  16. Collapse transition in polymer models with multiple monomers per site and multiple bonds per edge

    Science.gov (United States)

    Rodrigues, Nathann T.; Oliveira, Tiago J.

    2017-12-01

    We present results from extensive Monte Carlo simulations of polymer models where each lattice site can be visited by up to K monomers and no restriction is imposed on the number of bonds on each lattice edge. These multiple monomer per site (MMS) models are investigated on the square and cubic lattices, for K =2 and 3, by associating Boltzmann weights ω0=1 , ω1=eβ1 , and ω2=eβ2 to sites visited by 1, 2, and 3 monomers, respectively. Two versions of the MMS models are considered for which immediate reversals of the walks are allowed (RA) or forbidden (RF). In contrast to previous simulations of these models, we find the same thermodynamic behavior for both RA and RF versions. In three dimensions, the phase diagrams, in space β2×β1 , are featured by coil and globule phases separated by a line of Θ points, as thoroughly demonstrated by the metric νt, crossover ϕt, and entropic γt exponents. The existence of the Θ lines is also confirmed by the second virial coefficient. This shows that no discontinuous collapse transition exists in these models, in contrast to previous claims based on a weak bimodality observed in some distributions, which indeed exists in a narrow region very close to the Θ line when β1<0 . Interestingly, in two dimensions, only a crossover is found between the coil and globule phases.

  17. Bacillus licheniformis Contains Two More PerR-Like Proteins in Addition to PerR, Fur, and Zur Orthologues.

    Directory of Open Access Journals (Sweden)

    Jung-Hoon Kim

    Full Text Available The ferric uptake regulator (Fur family proteins include sensors of Fe (Fur, Zn (Zur, and peroxide (PerR. Among Fur family proteins, Fur and Zur are ubiquitous in most prokaryotic organisms, whereas PerR exists mainly in Gram positive bacteria as a functional homologue of OxyR. Gram positive bacteria such as Bacillus subtilis, Listeria monocytogenes and Staphylococcus aureus encode three Fur family proteins: Fur, Zur, and PerR. In this study, we identified five Fur family proteins from B. licheniformis: two novel PerR-like proteins (BL00690 and BL00950 in addition to Fur (BL05249, Zur (BL03703, and PerR (BL00075 homologues. Our data indicate that all of the five B. licheniformis Fur homologues contain a structural Zn2+ site composed of four cysteine residues like many other Fur family proteins. Furthermore, we provide evidence that the PerR-like proteins (BL00690 and BL00950 as well as PerRBL (BL00075, but not FurBL (BL05249 and ZurBL (BL03703, can sense H2O2 by histidine oxidation with different sensitivity. We also show that PerR2 (BL00690 has a PerR-like repressor activity for PerR-regulated genes in vivo. Taken together, our results suggest that B. licheniformis contains three PerR subfamily proteins which can sense H2O2 by histidine oxidation not by cysteine oxidation, in addition to Fur and Zur.

  18. Exemple de volumetria per retrocés

    OpenAIRE

    Fuguet i Jordà, Elisabet; Giménez López, Estela; Jaumot Soler, Joaquim; Núñez Burcio, Oscar; Serrano i Plana, Núria; Tarancón Sanz, Alex

    2013-01-01

    Aquest material forma part d'una col•lecció de tres vídeos, que estan creats per tal de mostrar a l'alumne de Química Analítica la diferència que hi ha entre una volumetria directa, una volumetria indirecta i una volumetria per retrocés. En aquest vídeo es mostra la volumetria per retrocés.

  19. Roars: sette proposte per la valutazione della ricerca

    Directory of Open Access Journals (Sweden)

    Maria Chiara Pievatolo

    2012-06-01

    Full Text Available L’articolo uscito oggi su Roars, Sette proposte per la VQR, propone sette soluzioni facilmente praticabili per correggere gli aspetti più discutibili della valutazione della ricerca in corso in Italia.  In queste pagine abbiamo discusso molto della classificazioni non bibliometriche delle riviste e abbiamo presentato una nostra soluzione a lungo termine. Nel breve termine pensiamo però [...

  20. Nova via terapèutica per tractar desordres gastrointestinals

    OpenAIRE

    Martínez, Vicente

    2009-01-01

    El tractament de les alteracions funcionals gastrointestinals, encapçalades per la síndrome del còlon irritable, és un repte més per a la biomedicina. L’article següent presenta una possible via terapèutica: bloquejar un dels receptors de la vasopresina, una de les hormones encarregades de generar respostes orgàniques per mitigar els efectes nocius de l’estrès o estats depressius. Sembla contradictori interrompre una funció hormonal tan beneficiosa, però estudis previs han demostrat que les p...

  1. PER1 Phosphorylation Specifies Feeding Rhythm in Mice

    Directory of Open Access Journals (Sweden)

    Zhiwei Liu

    2014-06-01

    Full Text Available Organization of circadian behavior, physiology, and metabolism is important for human health. An S662G mutation in hPER2 has been linked to familial advanced sleep-phase syndrome (FASPS. Although the paralogous phosphorylation site S714 in PER1 is conserved in mice, its specific function in circadian organization remains unknown. Here, we find that the PER1S714G mutation accelerates the molecular feedback loop. Furthermore, hPER1S714G mice, but not hPER2S662G mice, exhibit peak time of food intake that is several hours before daily energy expenditure peaks. Both the advanced feeding behavior and the accelerated clock disrupt the phase of expression of several key metabolic regulators in the liver and adipose tissue. Consequently, hPER1S714G mice rapidly develop obesity on a high-fat diet. Our studies demonstrate that PER1 and PER2 are linked to different downstream pathways and that PER1 maintains coherence between the circadian clock and energy metabolism.

  2. Bacterial PerO Permeases Transport Sulfate and Related Oxyanions.

    Science.gov (United States)

    Hoffmann, Marie-Christine; Pfänder, Yvonne; Tintel, Marc; Masepohl, Bernd

    2017-07-15

    Rhodobacter capsulatus synthesizes the high-affinity ABC transporters CysTWA and ModABC to specifically import the chemically related oxyanions sulfate and molybdate, respectively. In addition, R. capsulatus has the low-affinity permease PerO acting as a general oxyanion transporter, whose elimination increases tolerance to molybdate and tungstate. Although PerO-like permeases are widespread in bacteria, their function has not been examined in any other species to date. Here, we present evidence that PerO permeases from the alphaproteobacteria Agrobacterium tumefaciens , Dinoroseobacter shibae , Rhodobacter sphaeroides , and Sinorhizobium meliloti and the gammaproteobacterium Pseudomonas stutzeri functionally substitute for R. capsulatus PerO in sulfate uptake and sulfate-dependent growth, as shown by assimilation of radioactively labeled sulfate and heterologous complementation. Disruption of perO genes in A. tumefaciens , R. sphaeroides , and S. meliloti increased tolerance to tungstate and, in the case of R. sphaeroides , to molybdate, suggesting that heterometal oxyanions are common substrates of PerO permeases. This study supports the view that bacterial PerO permeases typically transport sulfate and related oxyanions and, hence, form a functionally conserved permease family. IMPORTANCE Despite the widespread distribution of PerO-like permeases in bacteria, our knowledge about PerO function until now was limited to one species, Rhodobacter capsulatus In this study, we showed that PerO proteins from diverse bacteria are functionally similar to the R. capsulatus prototype, suggesting that PerO permeases form a conserved family whose members transport sulfate and related oxyanions. Copyright © 2017 American Society for Microbiology.

  3. The Hepatitis C Genotype 1 Paradox: Cost per Treatment Is Increasing, but Cost per Cure Is Decreasing

    Directory of Open Access Journals (Sweden)

    Stephen D Shafran

    2015-01-01

    Full Text Available Significant attention has been focused on the perceived increase in the cost of antiviral treatment for hepatitis C genotype 1 infection since the approval of the first direct-acting antiviral agents in 2011. Using Canadian list prices, the present analysis points out a paradox: while the cost per antiviral regimen is increasing, the cost per cure is decreasing, especially with interferon-free therapy. In a publicly funded health care system, the lowest cost per cure is a more valuable measure of value for public money than the cost per regimen.

  4. Le immagini nei libri di storia per la scuola primaria

    Directory of Open Access Journals (Sweden)

    Maila Pentucci

    2015-09-01

    Full Text Available Il presente saggio, a partire dall’analisi di un corpus di libri di storia per la scuola primaria, vuole comprendere come e quanto le immagini possano essere portatrici di sapere e quanto invece possano ingenerare stereotipi e misconoscenze negli alunni. Le pagine dei manuali sono sempre più ricche di elementi iconografici, probabilmente per rispondere alla modalità di apprendimento simultanee e proprie dei ragazzi dell’era digitale. Tuttavia questi elementi non sono autopoietici rispetto al sapere storico, ma richiedono una didattica specializzata per la loro decodifica ed interpretazione. Le immagini, infatti, possono essere utilizzate come fonti, secondo metodologie di ricerca laboratoriale, oppure possono essere mediatori di saperi storici, ovvero strumenti portatori di operazioni significative finalizzate allo sviluppo di competenze. Spesso però negli usi editoriali sono poco significative sul piano cognitivo, non utili al docente per una trasposizione didattica che metta gli alunni nella condizione di pensare storicamente.

  5. 78 FR 46421 - Proposed Information Collection (Per Diem for Nursing Home Care of Veterans in State Homes; Per...

    Science.gov (United States)

    2013-07-31

    ... AFFAIRS Proposed Information Collection (Per Diem for Nursing Home Care of Veterans in State Homes; Per Diem for Adult Day Care of Veterans in State Homes): Comment Request AGENCY: Veterans Health... home and adult day health services care to Veterans. VA requires facilities providing nursing home and...

  6. 77 FR 45719 - Proposed Information Collection (Per Diem for Nursing Home Care of Veterans in State Homes; Per...

    Science.gov (United States)

    2012-08-01

    ... Information Collection (Per Diem for Nursing Home Care of Veterans in State Homes; Per Diem for Adult Day Care... solicits comments on information needed to ensure that nursing home and adult day health care facilities... services care to Veterans. VA requires facilities providing nursing home and adult day health care to...

  7. The Impact of Corruption on GDP Per Capita

    Directory of Open Access Journals (Sweden)

    Nazar Mustapha

    2014-10-01

    Full Text Available The paper studies the impact of corruption on the GDP per capita. A panel data covers the period between 2003 and 2011. The objective is to test the hypothesis that there is a strong negative impact of corruption on the GDP per capita. Three tests were conducted, the pool OLS, The Fixed Effect and the Random effect estimations. The main result of this study is that all three tests had shown strong statistically significant negative impact of corruption on the GDP per capita.

  8. Avaluació dels indicadors per mesurar la pobresa multidimensional

    OpenAIRE

    Permanyer, Iñaki

    2015-01-01

    Tradicionalment mesurat en base als ingressos, actualment el concepte de pobresa inclou altres dimensions rellevants per al benestar de les persones, com ara l’educació o la salut. Aquest article revisa les diferents propostes de mesura de pobresa multidimensional i mostra que, per a aquells individus classificats com a “pobres”, si tenen atributs que estan per sobre del llindar de la pobresa, aquests no poden influir en l’avaluació global dels nivells de privació. L’autor conclou recomanant ...

  9. Taccio e cionco: due parole Toscane per forfè

    Directory of Open Access Journals (Sweden)

    Bruno Migliorini

    1972-12-01

    Full Text Available Documentato in Toscana fin clal sec. XIV (Leonardo Frescobalcli nella locuzione tenere a taccio «per un prezzo convenuto», poi attestato dal Cinquecento al Settecento a Firenze e a Pisa (Cecchi, Fagiuoli, Ga­ bella di Pisa e tuttora vivo qua e là in Toscana nella locuzione fare un taccio «combinare per un prezzo globale», questo taccio è stato clapprima etimologizzato dal Caix, Studi di efimologia italiana e romanza, Firenze 1878, § 615: Taccio 'cottimo'; fare un taccio 'finir una controversia con accomoclamento'. Per ' fascia da faxare 'tassare, stimare, computare'.

  10. Il calcolo del premio assicurativo per gli eventi catastrofali

    OpenAIRE

    Aversa, Monica

    2010-01-01

    Tra i problemi che pone la Matematica Attuariale ha un rilievo non indifferente la questione del calcolo del premio, ovvero il prezzo da far pagare all’assicurato per garantirgli la copertura assicurativa. Nella presente tesi si esaminano i più moderni principi di calcolo del premio per le assicurazioni danni, in particolare si considerano i rischi catastrofali e si utilizza come modello per il rischio “il danno cumulato” ovvero la variabile casuale S=X1+X2+…..+XN, con Xi≥0 variabili casuali ...

  11. Pluto Moons exhibit Orbital Angular Momentum Quantization per Mass

    Directory of Open Access Journals (Sweden)

    Potter F.

    2012-10-01

    Full Text Available The Pluto satellite system of the planet plus five moons is shown to obey the quan- tum celestial mechanics (QCM angular momentum per mass quantization condition predicted for any gravitationally bound system.

  12. Ultrasonographic evaluation of first trimester bleeding per vaginum

    OpenAIRE

    Neelam Gupta; Meenakshi Samariya; Devika Choudhary; Kanti Yadav; Pushpa Kannoujiya

    2016-01-01

    Background: First trimester is a very crucial period of pregnancy having high risks of pregnancy losses. The objective of this study was to assess the accuracy of ultrasound in diagnosis of cause of first trimester bleeding per vaginum. Methods: 200 women who attended the out-patient department with the complaint of bleeding per vagina in the first trimester pregnancy were taken for the study. Clinical assessment by pelvic examination was done and a provisional diagnosis was made. All nece...

  13. Substrate control through per-O-methylation of cyclodextrin acids

    DEFF Research Database (Denmark)

    Fenger, Thomas H; Bols, Mikael

    2010-01-01

    Per-O-methylated cyclodextrins containing a single 2-O-(2-acetate), 2-O-(3-propanoate) or a 6-carboxylate were investigated for glycosidase activity on p-nitrophenyl glycosides. The former two compounds displayed enzyme catalysis giving rate accelerations of 500-1000, while the latter compound gave...... marginal catalysis. These results show that per-O-methylated cyclodextrins direct substrate binding from the secondary face leading to better catalysis....

  14. Distribution Dynamics of Regional GDP per Employee in Unified Germany

    OpenAIRE

    Vollmer, Sebastian; Holzmann, Hajo; Ketterer, Florian; Klasen, Stephan

    2010-01-01

    We investigate to what extent convergence in production levels per worker has been achieved in Germany since unification. To this end, we model the distribution of GDP per employee across German districts using two-component normal mixtures. While in the first year after unification, the two-component distributions were clearly separated and bimodal, corresponding to the East and West German districts, respectively, in the following years they started to merge showing only one mode. Still, us...

  15. Time-place learning and memory persist in mice lacking functional Per1 and Per2 clock genes.

    Science.gov (United States)

    Mulder, C; Van Der Zee, E A; Hut, R A; Gerkema, M P

    2013-12-01

    With time-place learning, animals link a stimulus with the location and the time of day. This ability may optimize resource localization and predator avoidance in daily changing environments. Time-place learning is a suitable task to study the interaction of the circadian system and memory. Previously, we showed that time-place learning in mice depends on the circadian system and Cry1 and/or Cry2 clock genes. We questioned whether time-place learning is Cry specific or also depends on other core molecular clock genes. Here, we show that Per1/Per2 double mutant mice, despite their arrhythmic phenotype, acquire time-place learning similar to wild-type mice. As well as an established role in circadian rhythms, Per genes have also been implicated in the formation and storage of memory. We found no deficiencies in short-term spatial working memory in Per mutant mice compared to wild-type mice. Moreover, both Per mutant and wild-type mice showed similar long-term memory for contextual features of a paradigm (a mild foot shock), measured in trained mice after a 2-month nontesting interval. In contrast, time-place associations were lost in both wild-type and mutant mice after these 2 months, suggesting a lack of maintained long-term memory storage for this type of information. Taken together, Cry-dependent time-place learning does not require Per genes, and Per mutant mice showed no PER-specific short-term or long-term memory deficiencies. These results limit the functional role of Per clock genes in the circadian regulation of time-place learning and memory.

  16. Classical capacity per unit cost for quantum channels

    Science.gov (United States)

    Jarzyna, Marcin

    2017-09-01

    In most communication scenarios, sending a symbol encoded in a quantum state requires spending resources such as energy, which can be quantified by a cost of communication. A standard approach in this context is to quantify the performance of communication protocol by classical capacity, quantifying the maximal amount of information that can be transmitted through a quantum channel per single use of the channel. However, different figures of merit are also possible and a particularly well-suited one is the classical capacity per unit cost, which quantifies the maximal amount of information that can be transmitted per unit cost. I generalize this concept to account for the quantum nature of the information carriers and communication channels and show that if there exists a state with cost equal to zero, e.g., a vacuum state, the capacity per unit cost can be expressed by a simple formula containing maximization of the relative entropy between two quantum states. This enables me to analyze the behavior of photon information efficiency for general communication tasks and show simple bounds on the capacity per unit cost in terms of quantities familiar from quantum estimation theory. I calculate also the capacity per unit cost for general Gaussian quantum channels.

  17. Alstroemeriaceae en Perú y áreas vecinas

    Directory of Open Access Journals (Sweden)

    Anton Hofreiter

    2006-10-01

    Full Text Available Las Alstroemeriaceae peruanas fueron revisadas por última vez por Killip (1936. Es necesaria una nueva revisión. Cinco viajes de campo de varias semanas cada uno fueron emprendidos a Sudamérica con el fin de estudiar las plantas in situ. En el presente trabajo se describe la historia taxonómica y colección de los géneros con especial énfasis en el Perú. El área descrita no considera fronteras políticas sino unidades geográficas de acuerdo a Baumann (1988, Berry (1982, Duellman (1979, Simpson (1975, 1979 y Weigend (2002. Se reconocen cinco unidades geográficas: Región Amotape-Huancabamba (Ecuador, Perú, Cordillera Occidental (Perú, Cordillera Central (Perú, Cordillera Oriental (Bolivia, Perú y el Altiplano (Bolivia, Perú. Se brinda una clave taxonómica en inglés y español para determinar las especies del Perú. Para cada una de las especies se discute la forma típica de crecimiento y su variabilidad, preferencias de hábitat y distribución general. Se identifican las especies de Ruiz & Pavón (1802. Ellos describieron en su Flora de Chile y Perú 23 especies de Alstroemeria, 18 fueron de Perú, ahora 17 son incluidas en Bomarea, todas proceden de Perú. El género Bomarea está subdividido en 4 subgéneros: Baccata, Bomarea s. str., Sphaerine y Winchurea (Hofreiter & Tillich, 2002. Alstroemeria no es dividido en subgéneros, pero existen dos grupos reconocidos, Alstroemeria de Chile y Brasil. En el área de estudio se encuentran dos especies de Alstroemeria y 68 de Bomarea, de ellas 43 especies pertenecen al subgénero Bomarea, 9 especies al subgénero Sphaerine y 16 especies al subgénero Wichuraea. El subgénero Baccata no se encuentra en el área de estudio. Seis de las especies del género Bomarea son nuevas para la ciencia: B. amazonica, B. libertadensis, B. lopezii, B. macusanii, B. pseudopurpurea, B. weigendii.

  18. Potential of soil liquefaction at Perlis, northern region of Malalysia

    Science.gov (United States)

    Ghazaly, Zuhayr Md; Rahim, Mustaqqim Abdul; Nasir, Mohamad Amzar Bin Mhd; Isa, Nur Fitriah; Zaki, Mohd Faiz Mohammad; Hassan, Zulkarnain Bin; Ismail, Zul-Atfi Bin

    2017-09-01

    Soil liquefaction is earthquake's secondary effect which could cause fatal damages and structures instability. Despite Malaysia been located in stable zone of Pacific Ring of Fire, few significant surrounded quakes like Sumatra-Andaman earthquake had prompted Malaysian's public concern, especially in Perlis area, on local seismic resistant. Hence, this research presents the analysis result of liquefaction potential of the soils, as the secondary effect of earthquake, within Perlis, northern region of Malaysia; the next strong and sustainable metropolis by using semi-empirical procedures introduced by Seed and Idriss. The study consists of two stages which were determination of the local geological and geotechnical site conditions within Perlis and analysis of soil liquefaction susceptibility by using various methods and liquefaction potential by using Simplified Procedure developed by Seed and Idriss on stress approach. There were consist of four phases implemented in order to achieve the objectives targeted for the study after problem being identified. Firstly, a comprehensive review of literature on liquefaction at Perlis was carried out. Second phase was data collection process that includes collection of Site Investigation (SI) report. Thirdly, data analysis was carried out by utilizing suitable method. The final phase was to draw conclusion and recommendation for this study. It can be concluded that the overall Perlis due to earthquake moment magnitude below 7.5 has no potential to soil liquefaction. However, with the range of liquefaction potential of 1.60 to 5.64 in Kuala Perlis area, it is liquefiable. The development of liquefaction severity map of Perlis, Malaysia in this research, may be used by others as a reference for seismic design and standard safety measures as well as for further research work.

  19. Strong sales growth in 2006: + 21 per cent

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    Paris, February 14, 2007 - The Gaz de France group today reported record consolidated sales of euro 27,642 million in 2006, up 21 per cent compared with 2005. Under average weather conditions and comparable accounting methods, sales increased by 24 per cent versus 2005. This growth results primarily from an overall increase in European energy prices notwithstanding the slight decrease in prices towards the end of the year. The group also benefited from an increase in volumes and from the integration of new operations. After a colder first half of the year compared to that of the previous year, the autumn of 2006 was particularly warm. This had a negative impact on sales growth (there was a 12 billion kWh decrease between 2005 and 2006). The sales generated by the group's international activities increased by 33 per cent to a total of euro 10,839 m in 2006 and now account for almost 40 per cent of the group's overall sales. In this context, the group confirmed at the board meeting held on January 23, 2007 that it would reach the targets set for 2006, namely: - Growth in EBITDA above 20 per cent, e.g. in excess of euro 5 billion, - Net income of more than euro 2.2 billion.

  20. Estimation of optimal educational cost per medical student.

    Science.gov (United States)

    Yang, Eunbae B; Lee, Seunghee

    2009-09-01

    This study aims to estimate the optimal educational cost per medical student. A private medical college in Seoul was targeted by the study, and its 2006 learning environment and data from the 2003~2006 budget and settlement were carefully analyzed. Through interviews with 3 medical professors and 2 experts in the economics of education, the study attempted to establish the educational cost estimation model, which yields an empirically computed estimate of the optimal cost per student in medical college. The estimation model was based primarily upon the educational cost which consisted of direct educational costs (47.25%), support costs (36.44%), fixed asset purchases (11.18%) and costs for student affairs (5.14%). These results indicate that the optimal cost per student is approximately 20,367,000 won each semester; thus, training a doctor costs 162,936,000 won over 4 years. Consequently, we inferred that the tuition levels of a local medical college or professional medical graduate school cover one quarter or one-half of the per- student cost. The findings of this study do not necessarily imply an increase in medical college tuition; the estimation of the per-student cost for training to be a doctor is one matter, and the issue of who should bear this burden is another. For further study, we should consider the college type and its location for general application of the estimation method, in addition to living expenses and opportunity costs.

  1. Turbo-per-Tone Equalization for ADSL Systems

    Directory of Open Access Journals (Sweden)

    Marc Moonen

    2005-05-01

    Full Text Available We study the equalization procedure in discrete multitone (DMT-based systems, in particular, in DMT-based ADSL systems. Traditionally, equalization is performed in the time domain by means of a channel shortening filter. Shifting the equalization operations to the frequency domain, as is done in per-tone equalization, increases the achieved bitrate by 5–10%. We show that the application of the turbo principle to per-tone equalization can provide significant additional gains. In the proposed receiver structure, referred to as a “turbo-per-tone equalization” structure, equalization and decoding are performed in an iterative fashion. Equalization is done by means of a linear minimum mean squared error (MMSE equalizer, using a priori information. We give a description of an efficient implementation of such an equalizer in the per-tone structure. Simulations show that we obtain a bitrate increase of 12–16% compared to the original per-tone equalization-based receiver structure.

  2. HiPER: The European path to laser energy

    Directory of Open Access Journals (Sweden)

    Edwards Chris

    2013-11-01

    Full Text Available While for decades, energy production relying on laser inertial fusion has been a strong motivation for the development in Europe of a few high-energy laser facilities and dedicated scientific programs, the HiPER initiative launched in 2004 fostered an ambitious large-scale coordinated European program toward inertial fusion energy. Anticipating the successful demonstration of fusion ignition and gain at the National Ignition Facility (NIF in the USA, scientists and engineers from across Europe are developing the case for a next generation laser fusion facility, HiPER, to be constructed in Europe. The single-facility build strategy of HiPER (High Power Laser Energy Research Facility aims at first demonstrating some key elements of a fusion reactor in a high rep-rate few-second cycle mode, before addressing energy production on a high rep-rate continuous mode in a second area.

  3. La Psoralea bituminosa evoluciona per defensar-se

    OpenAIRE

    Espadaler, Xavier

    2008-01-01

    Quan la formiga Messor barbarus remou selectivament les llavors de la Psoralea bituminosa podria estar canviant l'estructura de la població d'aquestes plantes. Per això, l'objectiu de l'estudi següent ha estat determinar empíricament la preferència d'aquestes formigues granívores per les llavors que potser eren més pesants, però sobretot menys dures. Els resultats són contundents: prop d'un 70% amb més duresa no són consumides. A més, com són dispersades lluny de la planta originària, les gen...

  4. Projecte TRAMA. Formació per al treball en xarxa.

    Directory of Open Access Journals (Sweden)

    Daniel Muntané

    2008-12-01

    Full Text Available Aquest article vol exposar el treball de recerca i de construcció del coneixement sobre la docència del treball en xarxa dut a terme durant dos anys per les facultats d’educació de les universitats catalanes. El projecte d’educació i treball en xarxa (TRAMA té per objectiu promoure la formació inicial dels professionals dels àmbits socioeducatius en treball en xarxa i l'impuls d'estratègies de treball integrat per donar resposta als reptes que la societat actualmente planteja a l'educació. Aquest projecte se centra en la sensibilització del professorat universitari i la inclusió dels aspectes relacionats amb el treball en xarxa en el currículum de la formació inicial dels professionals de l'àmbit socioeducatiu.

  5. Le TIC nella scuola: dieci raccomandazioni per i policy maker

    Directory of Open Access Journals (Sweden)

    Antonio Calvani

    2013-12-01

    Full Text Available Basandosi sulle evidenze relative al rapporto tra tecnologia e apprendimento e sul recente rapporto OCSE riguardante il Piano Nazionale Scuola Digitale, l’autore riflette sui criteri che devono orientare le politiche innovative, ispirati a sostenibilità, ottimizzazione dell’impatto educativo, sottolineando anche la necessità di finalizzare meglio l’impiego delle tecnologie verso specifici obiettivi. Viene ricordato come storicamente si tenda a sovrastimare l’effetto positivo delle tecnologie sull’apprendimento; la ricerca ha invece rilevato i limiti della loro efficacia (da ricercare in determinate aree e la rilevanza del rischio del sovraccarico cognitivo che la loro introduzione può comportare. Si propongono alcuni suggerimenti per i decisori scolastici rispondendo alle due domande “Quali criteri per la politica tecnologica?”, “In che modo usare le tecnologie per apprendere a scuola?”.

  6. Quantum search with multiple walk steps per oracle query

    Science.gov (United States)

    Wong, Thomas G.; Ambainis, Andris

    2015-08-01

    We identify a key difference between quantum search by discrete- and continuous-time quantum walks: a discrete-time walk typically performs one walk step per oracle query, whereas a continuous-time walk can effectively perform multiple walk steps per query while only counting query time. As a result, we show that continuous-time quantum walks can outperform their discrete-time counterparts, even though both achieve quadratic speedups over their corresponding classical random walks. To provide greater equity, we allow the discrete-time quantum walk to also take multiple walk steps per oracle query while only counting queries. Then it matches the continuous-time algorithm's runtime, but such that it is a cubic speedup over its corresponding classical random walk. This yields a greater-than-quadratic speedup for quantum search over its corresponding classical random walk.

  7. What Can Learn from PER: Physics Education Research?

    CERN Document Server

    Singh, Chandralekha

    2016-01-01

    I believe that most teachers develop a belief in a set of pedagogical practices. As we teach, we try different ways to teach topics and then judge how successful the methods were. After several years, we have a compilation of techniques in our teaching toolbox. New teachers are at a disadvantage because they have fewer prior experiences to draw upon. Luckily, there is a group of physicists and physics educators who are researching how students learn physics, and have been able to show evidence of effective education practices in physics. They field of study is called PER: Physics Education Research. I asked Chandralekha Singh, one of the leaders in PER, to summarize some of the most relevant PER findings and her response follows.

  8. 13 bits per incident photon optical communications demonstration

    Science.gov (United States)

    Farr, William H.; Choi, John M.; Moision, Bruce

    2013-03-01

    Minimizing the mass and power burden of a laser transceiver on a spacecraft for interplanetary optical communications links drives requires operation in a "photon starved" regime. The relevant performance metric in the photon starved regime is Photon Information Efficiency (PIE) with units of bits per photon. Measuring this performance at the detector plane of an optical communications receiver, prior art has achieved performance levels around one bit per incident photon using pulse position modulation (PPM). By combining a PPM modulator with greater than 75 dB extinction ratio with a tungsten silicide (WSi) superconducting nanowire detector with greater than 83% detection efficiency we have demonstrated an optical communications link at 13 bits per incident photon.

  9. Empirical estimation of per capita brandy demand in Armenia

    Directory of Open Access Journals (Sweden)

    S.A. Movsisyan

    2017-03-01

    Full Text Available The empirical estimations were based on linear and double-log regression models, which identified the factors influencing the average per capita brandy demand in Armenia. The model was estimated using quarterly time-series data on per capita brandy consumption, disposable income, prices of various alcoholic beverages for 1997–2015 periods. This is quantitative study based on secondary annual, quarterly and monthly data, and 5% significance level. The average annual per capita brandy consumption data for 1997–2007 periods was obtained from WHO's website, whereas the 2008–2015 data was extracted from the National Statistical Service of the Republic of Armenia. For annual, quarterly and monthly periods from 1997 through 2015, the price data related to various alcoholic beverages, consumer price index were provided in NSS statistical publications of “Socio-Economic Situation of RA”, ”Consumer price indexes (prices in the Republic of Armenia”, “Prices and tariffs in the Republic of Armenia”. For 1997–2015 periods, the average monthly per capita monetary income data was obtained from “Living Standards of Population and Social Sphere” section of statistical yearbooks. The latter substituted the average per capita monthly disposable income data, since these data were unavailable. Meantime, since the data included numerous years, therefore, the nominal price and income data were adjusted for inflation using consumer price index with 2005 as base year. In conclusion, the average real prices of wine and vodka were statistically significant determinants of the average per capita brandy demand in Armenia, and the demand for brandy was inelastic.

  10. Analysing malaria drug trials on a per-individual or per-clone basis: a comparison of methods.

    Science.gov (United States)

    Jaki, Thomas; Parry, Alice; Winter, Katherine; Hastings, Ian

    2013-07-30

    There are a variety of methods used to estimate the effectiveness of antimalarial drugs in clinical trials, invariably on a per-person basis. A person, however, may have more than one malaria infection present at the time of treatment. We evaluate currently used methods for analysing malaria trials on a per-individual basis and introduce a novel method to estimate the cure rate on a per-infection (clone) basis. We used simulated and real data to highlight the differences of the various methods. We give special attention to classifying outcomes as cured, recrudescent (infections that never fully cleared) or ambiguous on the basis of genetic markers at three loci. To estimate cure rates on a per-clone basis, we used the genetic information within an individual before treatment to determine the number of clones present. We used the genetic information obtained at the time of treatment failure to classify clones as recrudescence or new infections. On the per-individual level, we find that the most accurate methods of classification label an individual as newly infected if all alleles are different at the beginning and at the time of failure and as a recrudescence if all or some alleles were the same. The most appropriate analysis method is survival analysis or alternatively for complete data/per-protocol analysis a proportion estimate that treats new infections as successes. We show that the analysis of drug effectiveness on a per-clone basis estimates the cure rate accurately and allows more detailed evaluation of the performance of the treatment. Copyright © 2012 John Wiley & Sons, Ltd.

  11. Planificación Municipal en el Perú

    OpenAIRE

    Hurtado Villanueva, Abelardo

    2013-01-01

    El presente trabajo tiene como finalidad explicar el nivel de planificación local y municipal en el Perú, para ello se procedió a interpretar los resultados alcanzados en cuanto al Plan de desarrollo local concertado y el Plan operativo institucional por la municipalidades del Perú al año 2011, y con ayuda de teorías científicas se puede establecer sus implicancias y repercusiones en el desempeño municipal, el desarrollo local y desarrollo humano. Se concluye que existe bajo nivel de plani...

  12. Restaural, sistema de gestió de comandes per restaurants

    OpenAIRE

    Solà Fernández, Xavier

    2006-01-01

    El projecte consisteix en un sistema informatitzat per restaurants centralitzat en un servidor que permet recollir comandes als clients a través de PDA’s i de pantalles tàctils situades a la barra per enviar-les als corresponents llocs d’ elaboració: -Terminal de la cuina on s’elaboraran tots els menjars. -Terminal de la bodega on es serviran els vins i caves. -Terminal barra on es serviran els licors, refrescos (entre d’altres productes totalment configurables). -Termina...

  13. Generació de codi C amb Matlab per DSP's

    OpenAIRE

    Gavaldà Bernal, Jordi

    2007-01-01

    Amb aquest projecte es pretén demostrar la generació automàtica de codis C a partir d’algoritmes desenvolupats amb Matlab i les seves llibreries per poder executar-los sobre una plataforma amb DSP de Texas Instruments (DSK 6711). Això inclou un estudi i realització de la comunicació Matlab-CCS-DSP per poder controlar l’algoritme que s’executa a la DSP mitjançant comunicació RTDX. En primer lloc s'explica l'entorn de treball del CCS i la comunicació de l'ordinador amb la t...

  14. Neutronics design and radiological aspects of HiPER facilities

    OpenAIRE

    Juarez Mañas, Rafael

    2013-01-01

    En este trabajo se han cubierto diferentes asuntos del diseño neutrónico de los aspectos radiológicos de las dos instalaciones del proyecto HiPER. El proyecto HiPER es un proyecto europeo concebido en el marco del programa ESFRI (European Scientific Facilities Research Infrastructure). Está destinado al desarrollo de la energía de fusión nuclear inercial mediante el uso de láseres y el esquema iluminación directa. Consecuentemente, se trata de una instalación con fines exclusivamente civiles....

  15. Adjetivos modificados con per- y prae- en Tácito

    Directory of Open Access Journals (Sweden)

    Joaquín Villalba Álvarez

    1998-06-01

    Full Text Available Throughout Latinity it is a common opinion the intensive force of some preverbs like per- or prae-, when they form modified adjectives (seuerus-perseuerus. This paper tries to analyse such type of adjectives in the works of Tacitus. After explaining the origin of these formations (seemingly proceeding from the sermo plebeius, and their different phases of creation in Latin literature, we review aH the forms found in Tacitus (eight with per- and seventeen with prae-, in order to examine their superlative force, their uis intentiua.

  16. Studio di Architetture e Protocolli per Reti Ottiche

    CERN Document Server

    Cucchi, R; Raffaelli, C; Vistoli, C

    1999-01-01

    Le reti ottiche basate sulla tecnologia WDM (Wavelength Division Multiplexing) sono molto promettenti per rispondere non solo alle esigenze di capacit trasmissiva ma anche per la realizzazione di reti costituite da apparati $9 esclusivamente ottici dove la lunghezza d¹onda rappresenta il circuito di comunicazione fra nodo sorgente e nodo destinatario.Questo documento prende in esame il ³trigger di II livello dell¹esperimento ATLAS come case study², ne $9 analizza le esigenze di trasmissione dei dati e descrive uno studio di fattibilit basato su una rete ottica a stella.

  17. Il progetto SISTER per il comune di Lignano Sabbiadoro

    OpenAIRE

    Alberto Poli

    2005-01-01

    Il comune di Lignano è stato recentemente invitato a Roma in qualità di relatore alla conferenza nazionale dei sistemi informativi territoriali organizzata da Esri, il maggior produttore mondiale di software per la gestione delle cartografie informatizzate. In tale occasione l’assessore AngeloBonelli ha presentato il progetto sperimentale di sistema informatico per la gestione del territorio, che è in corso da circa un anno. Ecco la sintesi della relazione del Sistema Informativo Integrato Te...

  18. Il progetto SISTER per il comune di Lignano Sabbiadoro

    Directory of Open Access Journals (Sweden)

    Alberto Poli

    2005-10-01

    Full Text Available Il comune di Lignano è stato recentemente invitato a Roma in qualità di relatore alla conferenza nazionale dei sistemi informativi territoriali organizzata da Esri, il maggior produttore mondiale di software per la gestione delle cartografie informatizzate. In tale occasione l’assessore AngeloBonelli ha presentato il progetto sperimentale di sistema informatico per la gestione del territorio, che è in corso da circa un anno. Ecco la sintesi della relazione del Sistema Informativo Integrato Territoriale (SISTER realizzato da Politecnica.

  19. Acantocéfalos del Perú

    OpenAIRE

    Tantaleán, Manuel; Unidad de Postgrado, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos; Sánchez, Lidia; Departamento de Protozoología, Helmintología e Invertebrados Afines. Museo de Historia Natural; Gómez, Luis; Departamento de Protozoología, Helmintología e Invertebrados Afines. Museo de Historia Natural; Huiza, Alina; Instituto de Medicina Tropical Daniel A. Carrión. UNMSM

    2013-01-01

    In this paper, the fullest information available about the Acanthocephalan discovered in Peru is presented, but also new hosts. En este trabajo, se reúne la mayor información disponible acerca de los acantocéfalos encontrados en el Perú y se incluyen nuevos huéspedes

  20. The demand for Kerosene and per capita income in Ethiopia ...

    African Journals Online (AJOL)

    We will also compare and contrast nominal prices and the amount of energy per unit cost for important fuels. Even though fuel wood has the lowest quality, it is the cheapest energy source among household fuels and that is why poor households preferred to consume it. Kerosene becomes the most expensive fuel than ...

  1. determinants of residential per capita water demand of makurdi ...

    African Journals Online (AJOL)

    This report presents the findings of the study on the determinants of residential per capita water demand of Makurdi metropolis in Benue State, Nigeria. Data for the study was obtained by the use of questionnaires, oral interviews and observations. The data was analyzed using SPSS. Twenty variables were considered in ...

  2. determinants of residential per capita water demand of makurdi

    African Journals Online (AJOL)

    user

    This report presents the findings of the study on the determinants of residential per capita water demand of. Makurdi metropolis in Benue State, Nigeria. Data for the study was obtained by the use of questionnaires, oral interviews and observations. The data was analyzed using SPSS. Twenty variables were considered in ...

  3. Genomic DNA extraction method from Annona senegalensis Pers ...

    African Journals Online (AJOL)

    aghomotsegin

    2014-02-05

    Feb 5, 2014 ... DNA fruit. 4 μl DNA was loaded per lane. (b) Restriction enzymes digestion of Annona senegalensis genomic. DNA. Lanes 1-3: DNA digested with Sau3A. Figure 2. Amplification of purified DNA with SSR-PCR. DNA was purified using the method described. The purified DNA was amplified using SSR-.

  4. Dynamic maintenance of majority information in constant time per update

    DEFF Research Database (Denmark)

    Frandsen, Gudmund Skovbjerg; Skyum, Sven

    1997-01-01

    We show how to maintain information about the existence of a majority colour in a set of elements under insertion and deletion of single elements using O(1) time and at most 4 equality tests on colours per update. No ordering information is used....

  5. Vreemd vermogen per land- en tuibouwbedrijf sterk toegenomen

    NARCIS (Netherlands)

    Meulen, van der H.A.B.

    2008-01-01

    Het vreemde vermogen op agrarische bedrijven is tussen 2002 en 2007 met 33% gestegen tot bijna 550.000 euro per bedrijf. Gemiddeld genomen wordt ongeveer een derde van het balanstotaal gefinancierd met vermogen verstrekt door derden. De glastuinbouwbedrijven hebben met gemiddeld circa 1 miljoen euro

  6. La (incumplida) promesa universitaria en el Perú

    OpenAIRE

    Cuenca, Ricardo; Reátegui, Luciana

    2016-01-01

    “El objetivo de este informe es mostrar qué sucedió con aquellas hipótesis de mediados de los años noventa mediante el análisis descriptivo de un conjunto de datos oficiales sobre la educación superior universitaria en el Perú.”—Introducción.

  7. Effect of different nematicide applications per year on banana ...

    African Journals Online (AJOL)

    Objective: The objective of this study was to evaluate the effect of different nematicide applications per year on control of banana root nematode, root weight and crop yield in Belize. The relationship between cost and benefit of the nematicide applications was also estimated. Methodology and results: A field experiment was ...

  8. Estimating Leaf Area Per Plant in Bambara Groundnut ( Vigna ...

    African Journals Online (AJOL)

    Equations relating leaf area to leaf dry weight and leaf number were developed for two local landraces of bambara groundnut (Vigna subterranean) grown in a greenhouse and in the field during the 1998/99 cropping season in Swaziland. During the seed filling stage the number of leaves on 10 plants per landrace were ...

  9. How Large Are the Cuts in Operating Grants per Student?

    Science.gov (United States)

    Burke, Gerald

    2008-01-01

    The 1988-89 Budget provides more detail on the Commonwealth's intentions for higher education as outlined in the Green and White Papers. This article focuses on one consequence of the Budget: the decline in operating grants per student in the period 1989 to 1991. Not all the data on expenditure and enrolments necessary for precise estimates are…

  10. Therapeutic Effects of Annona senegalensis Pers Stem Bark ...

    African Journals Online (AJOL)

    Therapeutic Effects of Annona senegalensis Pers Stem Bark Extracts in Experimental African Trypanosomiasis. ... International Journal of Health Research ... Results: Hexane extract, at a dose of 400 mg/kg body weight and aqueous extract at a dose of 300 mg/kg body weight, cured the experimental infection in mice.

  11. Measuring the nursing workload per shift in the ICU

    NARCIS (Netherlands)

    Debergh, Dieter P.; Myny, Dries; Van Herzeele, Isabelle; Van Maele, Georges; Miranda, Dinis Reis; Colardyn, Francis

    In the intensive care unit (ICU) different strategies and workload measurement tools exist to indicate the number of nurses needed. The gathered information is always focused on manpower needed per 24 h. However, a day consists of several shifts, which may be unequal in nursing workload. The aim of

  12. Thevetia neriifolia Juss. ex Steud Syn. J. peruviava (Pers.) Schum ...

    Indian Academy of Sciences (India)

    Thevetia neriifolia Juss. ex Steud Syn. J. peruviava (Pers.) Schum (English: yellow oleander; Hindi: Pili-. Kaner) of Apocynaceae is a small evergreen ornamental tree with strap-like simple leaves and funnel- shaped yellow flowers. Fruit is large with a single hard-shelled seed. Thevetia trees are largely cultivated in gardens ...

  13. Calculation of growth per cycle (GPC) of atomic layer deposited ...

    Indian Academy of Sciences (India)

    2014-03-06

    Mar 6, 2014 ... Calculation of growth per cycle (GPC) of atomic layer deposited aluminium oxide nanolayers and dependence of GPC on surface OH concentration. ANU PHILIP, SUBIN THOMAS and K RAJEEV KUMAR*. Department of Instrumentation, Cochin University of Science and Technology,. Cochin 682 022, India.

  14. Calculation of growth per cycle (GPC) of atomic layer deposited ...

    Indian Academy of Sciences (India)

    Home; Journals; Pramana – Journal of Physics; Volume 82; Issue 3. Calculation of growth per cycle (GPC) of atomic layer deposited aluminium oxide nanolayers and dependence of GPC on surface OH concentration. Anu Philip Subin Thomas K Rajeev Kumar. Research Articles Volume 82 Issue 3 March 2014 pp 563-569 ...

  15. Economics of the one laptop per child in India

    NARCIS (Netherlands)

    James, M.J.

    2014-01-01

    Much controversy has surrounded the adoption of the one laptop per child (OLPC) programme in India. In the debate, however, an economics perspective has rarely been adopted. In what follows, accordingly, I use some basic economic principles to analyse the full-scale adoption of OLPC laptops in all

  16. Reply to Battro on the one laptop per child

    NARCIS (Netherlands)

    James, M.J.

    2013-01-01

    Dr. Battro takes issue with my paper on the One-Laptop-per-Child Programme that appeared in a 2010 issue of this journal (20/3). He raises a variety of issues that are relevant to this Programme but nowhere does he deal with my main point, namely, that poor countries simply cannot afford to give

  17. Macroeconomic consequences of the one laptop per child project

    NARCIS (Netherlands)

    James, M.J.

    Because some developing countries have adopted the One Laptop per Child (OLPC) project at the national level and others are planning to do so, the macroimplications of this idea can no longer be ignored. Accordingly, I examine whether or not full adoption of OLPC computers in primary schools

  18. Strategie robotiche ed informatiche per la fruizione museale

    National Research Council Canada - National Science Library

    Michela Cigola; Arturo Gallozzi; Marco Ceccarelli; Giuseppe Carbone; Claudio De Stefano; Alessandra Scotto di Freca

    2014-01-01

    ... sull’uso di robot per effettuare una visita ad un museo durante l’orario di chiusura, permettendo al visitatore, connesso al robot attraverso il proprio computer di casa o il proprio tablet o smartphone, di controllare e “guidare...

  19. Clinical and Parasitological Effects of Aspilia africana (Pers.)

    African Journals Online (AJOL)

    Department of Pharmacy, Makerere University

    This paper reports the findings of a clinical study of a herbal preparation of Aspilia africana (Pers.) C.D. Adams against malaria, corroborated by in vitro antiplasmodial and cytotoxicity tests. In a non-controlled prospective design, 15 patients with uncomplicated malaria were administered with the herbal preparation and ...

  20. What Can We Learn from PER: Physics Education Research?

    Science.gov (United States)

    Singh, Chandralekha

    2014-01-01

    Physics Education Research (PER) focuses on understanding how students learn physics at all levels and developing strategies to help students with diverse prior preparations learn physics more effectively. New physics instructors are encouraged to visit http://PhysPort.org, a website devoted to helping instructors find effective teaching resources…

  1. Genetic diversity of Annona senegalensis Pers. populations as ...

    African Journals Online (AJOL)

    Annona senegalensis Pers. is one of the wild fruit tree for domestication in southern Africa. An assessment of the genetic diversity in A. senegalensis would assist in planning for future germplasm collection, conservation and fruit domestication programmes. During 2004 to 2006 nine populations were collected from different ...

  2. 49 CFR 37.93 - One car per train rule.

    Science.gov (United States)

    2010-10-01

    ... light or rapid rail service shall ensure that each train, consisting of two or more vehicles, includes... 49 Transportation 1 2010-10-01 2010-10-01 false One car per train rule. 37.93 Section 37.93 Transportation Office of the Secretary of Transportation TRANSPORTATION SERVICES FOR INDIVIDUALS WITH...

  3. Per operative discovery of Placenta Praevia Percreta: A case report ...

    African Journals Online (AJOL)

    Placenta percreta is a rare pathological entity with challenging diagnostic and therapeutic requirements especially for resource limited settings. We present here the case of a 40 year old woman with a per operative diagnosis of placenta accreta during a caesarian section indicated for placenta praevia. We highlight the ...

  4. Lista dei caratteri macroscopici per l’identificazione dei legni

    Science.gov (United States)

    Flavio Ruffinatto; Alan Crivellaro; Alex C. Wiedenhoeft

    2016-01-01

    L’identificazione dei legni costituisce il primo passo per ottenere conoscenze indispensabili in molti ambiti di studio. Ad esempio, prima di eseguire il restauro di un manufatto di interesse culturale è indispensabile conoscere il nome dei legni che lo compongono. Oppure, nel caso in cui si sospetti che un legno protetto da convenzioni internazionali sia stato...

  5. Il progetto SISTER per il comune di Lignano Sabbiadoro

    Directory of Open Access Journals (Sweden)

    Alberto Poli

    2005-10-01

    Bonelli ha presentato il progetto sperimentale di sistema informatico per la gestione del territorio, che è in corso da circa un anno. Ecco la sintesi della relazione del Sistema Informativo Integrato Territoriale (SISTER realizzato da Politecnica.

  6. Modello metodologico per il monitoraggio degli incidenti stradali in Trentino

    Directory of Open Access Journals (Sweden)

    P. Fateh-Moghadam

    2003-05-01

    Full Text Available

    Obiettivi: realizzazione di un’infrastruttura informatica, per l’unificazione tempestiva dei flussi sugli incidenti stradali (ISTAT-ACI e sanitari con la georeferenziazione degli eventi a partire dall’anno 2000.

    Materiali e Metodi: dall’archivio di Trentino emergenza sono stati estratti gli interventi per incidente stradale selezionando la combinazione: descrizione patologica: “traumatismi”, tipologia luogo: “strada”, tipologia incidente. Dai dati di ogni Pronto soccorso è stato costruito un archivio unico contenente il totale degli accessi e sono stati estratti gli accessi per “incidente stradale” e quelli per lesioni accidentali in generale. Dall’archivio SDO si sono selezionati sia i ricoveri con il criterio “3” alla variabile mtraav (=incidente stradale che quelli per traumatismi.

    Nell’ambito del progetto “Metodi informatici predittivi per la mitigazione del rischio da incidenti stradali” (Mitris, finanziato dal Ministero della Salute, è stata realizzata l’immissione tramite interfaccia internet o decodifica automatica dei verbali informatizzati delle Forze dell’ordine, e la contestuale realizzazione di un interfaccia WebGIS
    in grado di visualizzare la localizzazione degli incidenti stradali.

    Risultati: tramite la combinazione “data nascita”,
    “data incidente”, “sesso” è stato eseguito un primo collegamento tra gli archivi. Aggiungendo alla data incidente uno o più giorni, è stato costruito un nuovo archivio PS contenente il 97,4% degli eventi raccolti dalle forze dell’Ordine e contenuti nel data base Mitris. Approccio analogo è stato seguito per il linkage con SDO e 118. Tramite interfaccia WebGIS è stata creata una mappa degli incidenti interrogabile on-line, che oltre alla semplice localizzazione riporta dinamica e esiti con possibilità di produrre statistiche e grafici. Il sistema copre attualmente

  7. The Application of SNiPER to the JUNO Simulation

    Science.gov (United States)

    Lin, Tao; Zou, Jiaheng; Li, Weidong; Deng, Ziyan; Fang, Xiao; Cao, Guofu; Huang, Xingtao; You, Zhengyun; JUNO Collaboration

    2017-10-01

    The JUNO (Jiangmen Underground Neutrino Observatory) is a multipurpose neutrino experiment which is designed to determine neutrino mass hierarchy and precisely measure oscillation parameters. As one of the important systems, the JUNO offline software is being developed using the SNiPER software. In this proceeding, we focus on the requirements of JUNO simulation and present the working solution based on the SNiPER. The JUNO simulation framework is in charge of managing event data, detector geometries and materials, physics processes, simulation truth information etc. It glues physics generator, detector simulation and electronics simulation modules together to achieve a full simulation chain. In the implementation of the framework, many attractive characteristics of the SNiPER have been used, such as dynamic loading, flexible flow control, multiple event management and Python binding. Furthermore, additional efforts have been made to make both detector and electronics simulation flexible enough to accommodate and optimize different detector designs. For the Geant4-based detector simulation, each sub-detector component is implemented as a SNiPER tool which is a dynamically loadable and configurable plugin. So it is possible to select the detector configuration at runtime. The framework provides the event loop to drive the detector simulation and interacts with the Geant4 which is implemented as a passive service. All levels of user actions are wrapped into different customizable tools, so that user functions can be easily extended by just adding new tools. The electronics simulation has been implemented by following an event driven scheme. The SNiPER task component is used to simulate data processing steps in the electronics modules. The electronics and trigger are synchronized by triggered events containing possible physics signals. The JUNO simulation software has been released and is being used by the JUNO collaboration to do detector design optimization, event

  8. Disseny de les pautes per la redacció del protocol de gestió per les aus del PNAE

    OpenAIRE

    Merino Fajarnés, Eladio; Murlà Tuyls, Damián; Pérez Martínez, Sònia; Soley Prieto, Susanna

    2006-01-01

    Aquest projecte té com a objectius: determinar les Directrius a seguir per la futura redacció d’un protocol de gestió de les zones inundables del PNAE, amb la finalitat de potenciar la presència d’aus; determinar les millors condicions d’hàbitat per les poblacions d’aus del PNAE i redactar unes línies de seguiment que permetin d'una banda avaluar si les pautes proposades tindran l’efecte desitjat i d'altra banda que permetin la redacció del protocol de gestió

  9. Rapid spectroscopic determination of per cent aromatics, per cent saturates and freezing point of JP-4 aviation fuel

    Energy Technology Data Exchange (ETDEWEB)

    Lysaght, M.J.; Kelly, J.J.; Callis, J.B. (Washington University, Seattle, WA (USA). Dept. of Chemistry)

    1993-05-01

    Near-infrared (n.i.r.) spectroscopy in both the short wavelength region (700-1100 nm) and the long wavelength region (1100-1500 nm) is evaluated as a rapid method for the simultaneous estimation of the freezing point and volume percentages of aromatics and saturates of aviation fuels. Thirty-three JP-4 samples were independently analysed by six industrial and government laboratories for freezing point and for volume per cent aromatics and volume per cent saturates by fluorescent indicator adsorption. These results were then used to calibrate the sample's n.i.r. spectra. Both multiple linear regression and partial least squares calibration methods were evaluated and gave comparable performance. The n.i.r. spectral analysis predictions for these properties were within the standard deviations of the round-robin values. Specially, the per cent aromatics and per cent saturates were within 1% and the freezing point within 2.5[degree]C of the laboratory-determined values. N.i.r. spectroscopy appears to have considerable promise as a rapid non-destructive method for jet fuel analysis. 27 refs., 8 figs., 6 tabs.

  10. SCN-AVP release of mPer1/mPer2 double-mutant mice in vitro

    Directory of Open Access Journals (Sweden)

    Oster Henrik

    2008-03-01

    Full Text Available Abstract Background Circadian organisation of behavioural and physiological rhythms in mammals is largely driven by the clock in the suprachiasmatic nuclei (SCN of the hypothalamus. In this clock, a molecular transcriptional repression and activation mechanism generates near 24 hour rhythms. One of the outputs of the molecular clock in specific SCN neurons is arginine-vasopressin (AVP, which is responsive to transcriptional activation by clock gene products. As negative regulators, the protein products of the period genes are thought to repress transcriptional activity of the positive limb after heterodimerisation with CRYPTOCHROME. When both the Per1 and Per2 genes are dysfunctional by targeted deletion of the PAS heterodimer binding domain, mice lose circadian organization of behaviour upon release into constant environmental conditions. To which degree the period genes are involved in the control of AVP output is unknown. Methods Using an in vitro slice culture setup, SCN-AVP release of cultures made of 10 wildtype and 9 Per1/2 double-mutant mice was assayed. Mice were sacrificed in either the early light phase of the light-dark cycle, or in the early subjective day on the first day of constant dark. Results Here we report that in arrhythmic homozygous Per1/2 double-mutant mice there is still a diurnal peak in in vitro AVP release from the SCN similar to that of wildtypes but distinctively different from the release pattern from the paraventricular nucleus. Such a modulation of AVP release is unexpected in mice where the circadian clockwork is thought to be disrupted. Conclusion Our results suggest that the circadian clock in these animals, although deficient in (most behavioural and molecular rhythms, may still be (partially functional, possibly as an hourglass mechanism. The level of perturbation of the clock in Per1/2 double mutants may therefore be less than was originally thought.

  11. Capsule endoscopy capture rate: Has 4 frames-per-second any impact over 2 frames-per-second?

    Science.gov (United States)

    Fernandez-Urien, Ignacio; Carretero, Cristina; Borobio, Erika; Borda, Ana; Estevez, Emilio; Galter, Sara; Gonzalez-Suarez, Begoña; Gonzalez, Benito; Lujan, Marisol; Martinez, Jose Luis; Martínez, Vanessa; Menchén, Pedro; Navajas, Javier; Pons, Vicente; Prieto, Cesar; Valle, Julio

    2014-01-01

    AIM: To compare the current capsule and a new prototype at 2 and 4 frames-per-second, respectively, in terms of clinical and therapeutic impact. METHODS: One hundred patients with an indication for capsule endoscopy were included in the study. All procedures were performed with the new device (SB24). After an exhaustive evaluation of the SB24 videos, they were then converted to “SB2-like” videos for their evaluation. Findings, frames per finding, and clinical and therapeutic impact derived from video visualization were analyzed. Kappa index for interobserver agreement and χ2 and Student’s t tests for qualitative/quantitative variables, respectively, were used. Values of P under 0.05 were considered statistically significant. RESULTS: Eighty-nine out of 100 cases included in the study were ultimately included in the analysis. The SB24 videos detected the anatomical landmarks (Z-line and duodenal papilla) and lesions in more patients than the “SB2-like” videos. On the other hand, the SB24 videos detected more frames per landmark/lesion than the “SB2-like” videos. However, these differences were not statistically significant (P > 0.05). Both clinical and therapeutic impacts were similar between SB24 and “SB2-like” videos (K = 0.954). The time spent by readers was significantly higher for SB24 videos visualization (P videos when all images captured by the capsule were considered. However, these differences become non-significant if we only take into account small bowel images (P > 0.05). CONCLUSION: More frames-per-second detect more landmarks, lesions, and frames per landmark/lesion, but is time consuming and has a very low impact on clinical and therapeutic management. PMID:25339834

  12. BASI ANTISISMICHE IN MARMO PER I BRONZI DI RIACE

    Directory of Open Access Journals (Sweden)

    Gerardo De Canio

    2012-04-01

    Full Text Available

    Nell'ambito di una convenzione stipulata con la Direzione Regionale per i BeniCulturali e Paesaggistici della Calabria, l’ENEA ha progettato e realizzato innovative basi antisismiche in marmo per i Bronzi di Riace in procinto di essere collocati in una nuova sede espositiva del Museo Archeologico Nazionale della Magna Grecia a Reggio Calabria.

     

    Earthquake-resistant marble bases

    ENEA has designed and implemented innovative earthquake-resistant marble bases for Bronze Statues, which will be placed in a new venue of the National Archaeological Museum of Magna Greece in Reggio Calabria.

  13. Trombose da veia renal no período neonatal

    OpenAIRE

    Morais, Sofia; Santos, Raquel; Gomes, Clara; Correia, António Jorge

    2014-01-01

    Introdução: A trombose da veia renal (TVR) no período neonatal é uma entidade rara. As complicações a longo prazo incluem hipertensão arterial, atrofia renal e insuficiência renal crónica. Objectivo: Revisão da abordagem das atitudes na fase aguda e evolução a longo prazo das crianças com TVR neonatal seguidas numa consulta de Nefrologia Pediátrica. Material e métodos: Análise retrospectiva dos processos das crianças com antecedentes de TVR no período neonatal. Foram avaliados os factores de ...

  14. Aportes del Proyecto de Educación Rural (PER)

    OpenAIRE

    Cubillo Jiménez, Kenneth Alfredo; Chaves Murillo, Urania María

    2011-01-01

    Recibido 05 de mayo de 2010 • Aceptado 31 de agosto de 2010 • Corregido 27 de julio de 2011 El presente artículo se deriva de la investigación “El proceso de formación inicial del Proyecto de Educación Rural (PER)”, desarrollada entre 1984 y 1987 en las Direcciones Regionales de Educación de San Carlos, Coto y Limón, y sus aportes para los procesos formativos en la actualidad. El PER fue implementado por el Centro de Investigación en Docencia y Educación (CIDE), de la Universidad Nacional (UN...

  15. Gentianaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Susy Castillo

    2013-10-01

    Full Text Available La familia Gentianaceae es reconocida en el Perú por presentar alrededor de 15 géneros y aproximadamente de 170 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004; S. Castillo, com.pers., mayormente hierbas y arbustos. En este trabajo se reconoce 103 especies endémicas en siete géneros. Los géneros con mayor número de especies endemicas son Gentianella y Macrocarpaea. Las especies endémicas ocupan principalmente las regiones de la Puna Húmeda y Seca, Páramo y Bosque Muy Húmedo Montano, entre los 1000 y 5100 m de altitud. Se aplicaron las categorías y criterios de la UICN a 99 especies. Treinta y tres especies endémicas se encuentran representadas dentro de un área protegida.

  16. Apiaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Apiaceae es reconocida en el Perú por presentar 29 géneros y 88 especies (Brako & Zarucchi, 1993, básicamente hierbas y subarbustos. En este trabajo reconocemos como endémicos 22 taxones en siete géneros. Un género, Paraselinum, es endémico del Perú. La mayoría de los taxones endémicos ocupan las regiones Desierto Semicálido Costero, Mesoandina y Bosques Muy Húmedos Montanos, entre los 10 y 4400 m de altitud. Ninguna de estas especies está representada en las áreas protegidas.

  17. Per and polyfluorinated substances in the Nordic Countries

    DEFF Research Database (Denmark)

    Posner, Stefan; Roos, Sandra; Brunn Poulsen, Pia

    This Tema Nord report presents a study based on open information and custom market research to review the most common perfluorinated substances (PFC) with less focus on PFOS and PFOA. The study includes three major parts: 1) Identification of relevant per-and polyfluorinated substances and their ......This Tema Nord report presents a study based on open information and custom market research to review the most common perfluorinated substances (PFC) with less focus on PFOS and PFOA. The study includes three major parts: 1) Identification of relevant per-and polyfluorinated substances...... prioritized in 2) There is a lack of physical chemical data, analystical reference substances, human and environmental occurrence and toxicology data, as well as market information regarding PFCs other than PFOA and PFOS and the current legislation cannot enforce disclosure of specific PFC substance...

  18. Immagini dinamiche: appunti per un catalogo degli usi didattici

    Directory of Open Access Journals (Sweden)

    Filippo Bruni

    2013-03-01

    Full Text Available Le immagini dinamiche costituiscono un’importante risorsa per le attività didattiche. A partire da una riflessione storica, si evidenzia in primo luogo l’importanza di un loro uso efficace alla luce della classificazione operata da Clark e Lyons. In secondo luogo si segnalano alcune attività emergenti legate alla documentazione, al digital storytelling e alla formazione degli insegnanti.

  19. Capabilities for per Process Tuning of Distributed Operating Systems

    OpenAIRE

    Margery, David; Lottiaux, Renaud; Morin, Christine

    2004-01-01

    This paper introduces capabilities as a tool to tailor cluster mechanisms usage on a per process basis in a single system image operating system. Using capabilities, processes should only pay the cost in terms of OS resources for the operating system of the mechanisms they want to use. We relate capabilities to policies that are used to try to ensure optimal resource usage across all cluster nodes. Finally, we discuss implementation of these ideas in Kerrighed and describe its usage on a real...

  20. Quali politiche di innovazione tecnologica per la scuola italiana?

    Directory of Open Access Journals (Sweden)

    Licia Cianfriglia

    2013-12-01

    Full Text Available Il presente contributo affronta il tema del rapporto tra introduzione delle tecnologie in classe e cambiamenti delle pratiche degli insegnanti. Alla luce dei cambiamenti sociali e delle abitudini degli individui, sulla base della conoscenza diretta della realtà scolastica del Paese, e dei dati messi a disposizione dalle indagini nazionali e internazionali sui comportamenti professionali dei docenti e sulle competenze acquisite dagli alunni, intende evidenziare le scelte necessarie per attuare efficaci politiche di innovazione della scuola italiana.

  1. Regional differences in intelligence and per capita income in Portugal

    OpenAIRE

    Almeida,Leandro S.; Lemos, Gina C.; Lynn, Richard

    2011-01-01

    Regional differences in IQ and per capita incomes are presented for five regions of Portugal: North, North Central, Lisbon-Central, Lisbon-Suburb, and South. Regional IQs were calculated from a representative sample of 4548 Portuguese school students from 5th to 12th grades. The average IQ and average incomes are highest in Central Lisbon. The results show a positive association between IQs and average regional incomes, as it has been observed in other countries.

  2. CALiPER Exploratory Study. Recessed Troffer Lighting

    Energy Technology Data Exchange (ETDEWEB)

    Miller, N. J. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Royer, M. P. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Poplawski, M. E. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2013-03-01

    This CALiPER study examines the problems and benefits likely to be encountered with LED products intended to replace linear fluorescent lamps. LED dedicated troffers, replacement tubes, and non-tube retrofit kits were evaluated against fluorescent benchmark troffers in a simulated office space for photometric distribution, uniformity of light on the task surface, suitability of light output, flicker, dimming performance, color quality, power quality, safety and certification issues, ease of installation, energy efficiency, and life-cycle cost.

  3. A new 4-oxazolidinone from Sorghum halepense (L. Pers.

    Directory of Open Access Journals (Sweden)

    Hongjuan Huang

    2015-01-01

    Full Text Available Sorghum halepense (L. Pers. is known as invasive weed in the world . In this paper we report three rare natural products from this weed. The compounds include a new rare natural product 2,2-dimethyl-5-(4-hydroxyphenyl-4-oxazolidinone (1, and two other known mandelic acid derivatives, ethyl 4-hydroxymandelate (2 and 4-hydroxymandelamide (3. The structures of these compounds were elucidated by extensive spectroscopic analysis (MS, IR, 1H, 13C NMR and 2D NMR.

  4. La responsabilità delle imprese multinazionali per crimini internazionali

    OpenAIRE

    Ricci, Mena

    2015-01-01

    L’attività di ricerca nell'ambito del Dottorato di ricerca “Persone, imprese e lavoro: dal diritto interno a quello internazionale” ha consentito di studiare ed approfondire una tematica nuova del diritto internazionale, ossia “La responsabilità delle imprese multinazionali per crimini internazionali”. Il progetto di ricerca è stato strutturato su tre parti dedicate rispettivamente alla soggettività giuridica delle imprese multinazionali, ai diversi profili di responsabilità che possono e...

  5. Thesaurus: un sistema per la conoscenza del patrimonio sommerso

    Directory of Open Access Journals (Sweden)

    Denise La Monica

    2013-03-01

    Full Text Available ItIl progetto Thesaurus (TecnicHe per l’Esplorazione Sottomarina Archeologica mediante l’Utilizzo di Robot aUtonomi in Sciami affronta lo sviluppo di metodologie e tecnologie scientifiche multidisciplinari al fine di individuare, censire e documentare manufatti e relitti subacquei di interesse archeologico e storico. Il sistema di gestione e consultazione dei dati già realizzato, a partire da un’attenta analisi di altri sistemi informativi e progetti similari, contiene sia dati sensoriali ottenuti mediante tecnologie avanzate per l’esplorazione dei fondali, sia dati di natura storica, archeologica e documentaria derivanti dalle ricerche umanistiche.EnThe goal of the project Thesaurus (TecnicHe per l’Esplorazione Sottomarina Archeologica mediante l’Utilizzo di Robot aUtonomi in Sciami is to develop multidisciplinary technologies and scientific methodologies in the aim of pinpointing, conducting a census and documenting artifacts and underwater wrecks of archaeological or historical interest. After having considered other similar projects and information systems, we implemented a system for managing and retrieving data, where sensory data gathered through advanced technologies to explore sea bottom, as well as data acquired through historical, archaeological and documentary research, are stored.

  6. La riscoperta della stereoscopia per la rappresentazione dello spazio architettonico

    Directory of Open Access Journals (Sweden)

    Simone Garagnani

    2011-06-01

    Full Text Available Il progressivo sviluppo dei metodi della rappresentazione grafica nel corso della storia è stato possibile in virtù della scoperta di strumenti e tecniche appartenenti al loro tempo: questo continuo progresso delle modalità di “raccontare” l’architettura è tuttora in corso di evoluzione, costituendo il fondamento di ogni strategia informativa e di comunicazione del progetto. Il sempre più pervasivo trattamento digitale dell’informazione, sia essa grafica che testuale, ha condotto ad una progressiva riscoperta di approcci tradizionali nella descrizione dello spazio costruito, declinandoli alle nuove tecnologie informatiche per amplificarne possibilità e valenze. È il caso della stereoscopia, diffuso metodo ottocentesco adottato in fotografia per rendere spaziale la percezione dell’immagine sfruttando la visione binoculare; oggi i modelli tridimensionali e le immagini digitali catturate da apposite fotocamere rendono l’approccio stereoscopico di immediato utilizzo anche per i profani della rappresentazione, semplificando e rendendo trasparenti i concetti di geometria proiettiva alla base del metodo. Questo contributo intende indagare le funzionalità, i vantaggi e le criticità della tecnologia stereoscopica immersiva nella moderna comunicazione del progetto d’architettura.

  7. Per un dizionario della ricerca sul Technology Enhanced Learning

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    Nicolas Balacheff

    2012-12-01

    Full Text Available Questo articolo presenta le principali linee di azione di un meta-progetto iniziato nell’ambito della Rete di Eccellenza STELLAR con l’obiettivo di creare e dare struttura a un Thesaurus e a un Dizionario dei termini e delle espressioni in uso nell’ambito della ricerca sul Technology Enhanced Learning (TEL. Questo meta-progetto intende fornire gli strumenti per superare le difficoltà dovute alla ricchezza e alla rapida evoluzione di quest’area di ricerca multidisciplinare, allo scopo di facilitare il coinvolgimento dei ricercatori giovani e di quelli che si accostano per la prima volta a questo settore, nonché di tutti coloro che a vario titolo si interessano al TEL. Il meta-progetto in questione ha anche l’ambizione di facilitare la comunicazione tra individui appartenenti a diverse culture scientifiche e tra le lingue nazionali. Dopo una presentazione delle motivazioni, vengono discussi gli attuali sviluppi del lavoro e presentati i criteri seguiti per le principali scelte effettuate in merito ai metodi e alle tecnologie utilizzate.

  8. The need for drugged driving per se laws: a commentary.

    Science.gov (United States)

    DuPont, Robert L; Voas, Robert B; Walsh, J Michael; Shea, Corinne; Talpins, Stephen K; Neil, Mark M

    2012-01-01

    Triggered by the new federal commitment announced by the Office of National Drug Control Policy (ONCDP) to encourage states to enact drugged driving per se laws, this article reviews the reasons to establish such laws and the issues that may arise when trying to enforce them. A review of the state of drunk driving per se laws and their implications for drugged driving is presented, with a review of impaired driving enforcement procedures and drug testing technology. Currently, enforcement of drugged driving laws is an adjunct to the enforcement of laws regarding alcohol impairment. Drivers are apprehended when showing signs of alcohol intoxication and only in the relatively few cases where the blood alcohol concentration of the arrested driver does not account for the observed behavior is the possibility of drug impairment pursued. In most states, the term impaired driving covers both alcohol and drug impairment; thus, driver conviction records may not distinguish between the two different sources of impairment. As a result, enforcement statistics do not reflect the prevalence of drugged driving. Based on the analysis presented, this article recommends a number of steps that can be taken to evaluate current drugged driving enforcement procedures and to move toward the enactment of drug per se laws.

  9. Prevalencia de Esclerosis Múltiple en Lima - Perú

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    Darwin Vizcarra Escobar

    2009-07-01

    Full Text Available La Esclerosis Múltiple (EM es la principal enfermedad desmielinizante a nivel mundial. La epidemiología señala una mayor prevalencia de esta entidad en áreas alejadas de la línea ecuatorial. Existen algunos estudios de prevalencia en Latinoamérica, ninguno publicado en el Perú. Objetivo: Determinar la prevalencia de Esclerosis Múltiple en Lima, Perú. Material y métodos: Se utilizó el método captura recaptura para estimar la prevalencia de EM en Lima en 4 centros de pacientes con Esclerosis Múltiple de la ciudad: Hypnos Instituto del Sueño en la Clínica San Felipe, el Hospital Nacional Cayetano Heredia, la Clínica El Golf y la Asociación "Esclerosis Múltiple Perú" (ESMUP. Resultados: Se calculó la prevalencia de EM en 7,69 x 100 000 habitantes (intervalo de confianza al 95 % 7,09 a 8,30. Conclusiones: La prevalencia estimada de EM, para la ciudad de Lima, se encuentra en rango medio bajo. (Rev Med Hered 2009;20:146-150.

  10. Large Scale Structure in CHILES using DisPerSE

    Science.gov (United States)

    Luber, Nicholas Matthew; van Gorkom, Jacqueline; Hess, Kelley; Pisano, D. J.; Fernandez, Ximena; Momjian, Emmanuel

    2018-01-01

    We apply the Discrete Persistence Source Extractor (DisPerSE) to the distribution of galaxies in the COSMOS field and isolate the best parameters in DisPerSE for identifying filaments in the field. The identification of the cosmic web, and the ability of CHILES to study the resolved neutral hydrogen morphologies and kinematics of galaxies, will allow us to study the properties of neutral hydrogen in different cosmic web environments across the redshift range $z$ = 0.1 - 0.5. We identify the parameters in DisPerSE and create the methodology that provides for the best results given the relatively small field of view of the COSMOS field and the increasing incompleteness of the survey with increasing redshift. The catalog we use is compiled using high confidence spectroscopic redshifts from the GAMA G10 data release and photometry/ancillary data from COSMOS2015. We analyze two-dimensional slices, extract the filaments, and calculate the distance from each galaxy to the cosmic web in each slice. We present correlations between galaxy properties and cosmic web environments--namely, that redder and more massive galaxies are closer to filaments--and highlight the relationship between color and stellar mass. Additionally, we discuss the cold gas morphology of a few individual galaxies and their positions with respect to the cosmic web.

  11. Evaluating turbidity and suspended-sediment concentration relations from the North Fork Toutle River basin near Mount St. Helens, Washington; annual, seasonal, event, and particle size variations - a preliminary analysis.

    Science.gov (United States)

    Uhrich, Mark A.; Spicer, Kurt R.; Mosbrucker, Adam; Christianson, Tami

    2015-01-01

    Regression of in-stream turbidity with concurrent sample-based suspended-sediment concentration (SSC) has become an accepted method for producing unit-value time series of inferred SSC (Rasmussen et al., 2009). Turbidity-SSC regression models are increasingly used to generate suspended-sediment records for Pacific Northwest rivers (e.g., Curran et al., 2014; Schenk and Bragg, 2014; Uhrich and Bragg, 2003). Recent work developing turbidity-SSC models for the North Fork Toutle River in Southwest Washington (Uhrich et al., 2014), as well as other studies (Landers and Sturm, 2013, Merten et al., 2014), suggests that models derived from annual or greater datasets may not adequately reflect shorter term changes in turbidity-SSC relations, warranting closer inspection of such relations. In-stream turbidity measurements and suspended-sediment samples have been collected from the North Fork Toutle River since 2010. The study site, U.S. Geological Survey (USGS) streamgage 14240525 near Kid Valley, Washington, is 13 river km downstream of the debris avalanche emplaced by the 1980 eruption of Mount St. Helens (Lipman and Mullineaux, 1981), and 2 river km downstream of the large sediment retention structure (SRS) built from 1987–1989 to mitigate the associated sediment hazard. The debris avalanche extends roughly 25 km down valley from the edifice of the volcano and is the primary source of suspended sediment moving past the streamgage (NF Toutle-SRS). Other significant sources are debris flow events and sand deposits upstream of the SRS, which are periodically remobilized and transported downstream. Also, finer material often is derived from the clay-rich original debris avalanche deposit, while coarser material can derive from areas such as fluvially reworked terraces.

  12. Analisi dei processi di un ambulatorio per i viaggiatori internazionali

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    M.L. Demarchi

    2003-05-01

    Full Text Available

    Obiettivi: 1 determinare i costi di gestione dell’ambulatorio del viaggiatore internazionale dell’ASL13 di Novara; 2 predisporre un piano di riorganizzazione dell’ambulatorio. Materiali e metodi: per la determinazione dei costi di gestione dell’ambulatorio è stata applicata la metodologia dell’Activity Based Costing (ABC che consiste nello scomporre, secondo un criterio gerarchico, le attività che costituiscono un processo, partendo da quelle poste a livello più elevato (macroattività e giungendo al singolo compito professionale (microattività.

    In seguito per ogni attività individuata ciascun operatore del servizio indica, in percentuale, il tempo mediamente dedicato a tale attività, al fine di quantificarne il costo. Le attività individuate sono state rappresentate graficamente con la tecnica del Work design secondo cui per ciascun processo sono identificati input, output, risorse utilizzate, nonché eventuali regole e controlli a cui è soggetto.

    Risultati: lo studio ha coinvolto tutti gli operatori dell’ambulatorio (4 medici, 2 assistenti sanitari e 1 assistente amministrativo.

    Sono state identificate 180 attività. Il costo annuale complessivo della gestione dell’ambulatorio, attribuibile alle risorse umane, è pari a ¤ 288.934. Complessivamente il costo di alcune attività è risultato particolarmente elevato, in quanto le attività stesse vengono svolte da figure professionali non pertinenti (es. attività amministrative svolte dall’infermiere, attività di pertinenza infermieristica effettuate dal medico.
    Attraverso la definizione di input, output, controlli e meccanismi, è stato possibile evidenziare sia le macro criticità del processo organizzativo, quali ad esempio la necessità di integrare l’utilizzo di supporti informatizzati per la gestione delle informazioni relative all’utente, sia le micro criticità, come l’esigenza di predisporre

  13. KAJIAN MANAJEMEN PRODUKSI PEMBERITAAN PSO BIDANG PERS OLEH LKBN ANTARA

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    Primayanti Primayanti

    2015-05-01

    Full Text Available Based on Government Regulation No. 40 Year 2007 on Perum ANTARA do fund public services (public service obligation / PSO in the field of government information. ANTARA position is also very strategic in the middle of the fight-laden media industry interests. Also, the need to get in the news media with the retail product line strategy while maintaining the main products for the media.Results of this study showed that the press area of public service obligations (PSO-Field Press includes a number of products and services that news text, photo news, and TV news. In line with government policies and programs, also set a number of themes that frame the products and services fields PSO Press.PSO and Field Releases can be interpreted as the government's efforts to maintain control and domination of the media life, given the strategic function of political economy of media. A contradiction was born. On the one hand, the government wants to adopt the principles of the liberal press, on the other hand maintain government policies in the media sector as opposed to the spirit of libertarianism. Berdasarkan Peraturan Pemerintah Nomor 40 Tahun 2007 tentang Perum LKBN ANTARA dilakukan dana pelayanan umum (public service obligation/PSO di bidang informasi dari pemerintah. Posisi LKBN ANTARA juga sangat strategis di tengah pertarungan industri media yang sarat kepentingan. Juga, perlunya kantor berita masuk media ritel dengan strategi lini produk dengan tetap mempertahankan produk utama untuk media.Hasil penelitian ini menujukkan bahwa kewajiban pelayanan umum bidang pers (PSO-Bidang Pers tersebut mencakup sejumlah produk dan layanan yaitu berita teks, berita foto, dan berita TV. Agar sejalan dengan program dan kebijakan pemerintah, ditetapkan pula sejumlah tema yang membingkai produk dan layanan PSO Bidang Pers.PSO Bidang Pers dapat dimaknai sebagai upaya pemerintah yang ingin mempertahankan kontrol dan dominasinya terhadap kehidupan media, mengingat begitu

  14. LA FORMAZIONE DEGLI INSEGNANTI PER UNA EDUCAZIONE PLURILINGUE E INTERCULTURALE

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    Edoardo Lugarini

    2012-07-01

    Full Text Available Dalla la Guida per lo sviluppo e l’attuazione di curricoli per una educazione plurilingue e interculturale del Consiglio d’Europa è possibile trarre una serie di indicazioni per disegnare un profilo professionale e, di conseguenza, una serie di indicazioni per la formazione iniziale e in servizio dell’insegnate di lingua (L1, L2, LS. In questo intervento si suggeriscono, senza alcuna pretesa di esaustività, degli indicatori relativi alle competenze professionali che l’insegnante dovrebbe possedere per poter svolgere la sua attività nella scuola italiana di oggi in considerazione dei bisogni linguistici delle nuove generazioni e degli obiettivi linguistici proposti dal Consiglio d’Europa nell’ambito delle politiche educative orientate a favorire la mobilità, una più efficace comunicazione internazionale, il rispetto dell’identità e della diversità delle culture, a sviluppare l’educazione alla cittadinanza democratica ed europea. Dalle riflessioni condotte emerge la necessità di una formazione disciplinare e didattica articolata e complessa che renda l’insegnante “professionista riflessivo” e “ricercatore sperimentale”TRAINING TEACHERS FOR MULTILINGUISTIC, INTERCULTURAL EDUCATIONFrom the Council of Europe’s Guide for the development and implementation of curricula for multilingual and intercultural education, it is possible to draw a series of explicit or implicit characteristics for teachers, and consequently, a series of indications for initial and in-service language (L1, L2, FL teacher training. This paper offers a brief view of the professional competences teachers should possess in order to carry out their roles in Italian schools considering the linguistic needs of the young generations and the language objectives set out by the Council of Europe regarding education policies that promote mobility, more effective International communication and respect for cultural identity and diversity, in an effort to

  15. Reti per la mobilità e sicurezza

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    Adriana Galderisi

    2009-07-01

    Full Text Available Una riflessione centrale nell’ambito del rapporto mobilità e sicurezza è quella relativa al ruolo che le reti per la mobilità rivestono, o possono rivestire, nel garantire la sicurezza del territorio rispetto a fattori di rischio, naturali o antropici. Già da alcuni anni, accrescere la sicurezza delle comunità insediate ai rischi costituisce uno degli obiettivi prioritari delle strategie volte ad orientare in chiave di sostenibilità lo sviluppo urbano e territoriale. Le reti per la mobilità rivestono, in tale contesto, un ruolo centrale: essenziali supporti alla vita quotidiana delle comunità - da cui dipende in molti casi la salute, il comfort e, più in generale, il benessere socioeconomico - esse rappresentano, da un lato ,elementi esposti e spesso ad elevata vulnerabilità rispetto ai diversi fenomeni calamitosi; dall’altro, attrezzature di importanza strategica per la gestione dell’emergenza, indispensabili per garantire l’accesso e l’esodo dalle aree colpite nella fase dell’immediato post evento. Il danneggiamento o la ridotta funzionalità di tali reti può incrementare, anche significativamente, le perdite di vite umane conseguenti ad un evento calamitoso, oltreché indurre danni economici rilevanti anche su orizzonti temporali di medio-lungo periodo. Inoltre, ampliando il campo di attenzione dalle reti come supporti fisici ai flussi di persone e beni che esse supportano, gli impatti di un evento calamitoso su singoli elementi di tali reti possono indurre eventi secondari anche di grande rilevanza quali, ad esempio, rilasci tossici o esplosioni, dovute a danni sulla rete che coinvolgono mezzi per il trasporto di sostanze pericolose o serbatoi localizzati lungo la rete o all’interno dei nodi della rete di trasporto. Tuttavia, nonostante la riconosciuta centralità delle reti per la mobilità, nel garantire la sicurezza del territorio, le analisi di rischio sono state a lungo incentrate prevalentemente sui manufatti

  16. Tecniche integrate di rilievo per la comprensione di contesti archeologici e paesaggistici: note metodologiche per un approccio multi-scalare.

    Directory of Open Access Journals (Sweden)

    Mariangela Liuzzo

    2017-12-01

    Full Text Available L’obiettivo della ricerca consiste nello sviluppo di un metodo efficiente volto a superare la dicotomia esistente tra la documentazione di dettaglio e quella a scala più ampia, territoriale e paesaggistica, in maniera tale da innescare nuove riflessioni sugli ambiti archeologici indagati e contestualizzarli nella storia e negli spazi geografici differenziati per periodi che arrivino fino ai giorni nostri.Il poter misurare ed assorbire diversi universi contestuali (dal singolo muro all’architettura, fino al sito e al suo territorio, mettendoli a sistema e facendoli interagire nello spazio e nel tempo, è forse il contributo più importante che un lavoro di squadra multidisciplinare può offrire per la comprensione dello spazio in cui viviamo.Si presentano i risultati di due recenti attività svolte sul campo ancora in atto.

  17. Home visit improves knowledge, self-care and adhesion in heart failure: randomized Clinical Trial HELEN-I Visita domiciliar mejora conocimiento, auto cuidado, adhesión en la insuficiencia cardíaca: Ensayo Clínico Aleatorizado HELEN - I Visita domiciliar melhora conhecimento, autocuidado e adesão na insuficiência cardíaca: ensaio clínico randomizado HELEN-I

    Directory of Open Access Journals (Sweden)

    Cláudia Motta Mussi

    2013-02-01

    Full Text Available OBJECTIVE: To verify the effect of an educative nursing intervention composed of home visits and phone calls on patients' knowledge about the disease, self-care and adhesion to the treatment. METHODS: Randomized clinical trial with patients with recent hospitalization caused by decompensated heart failure. There were two groups: the intervention group, which has received four home visits and four phone calls to reinforce the guidelines during six months of follow up; and the control group, which has received conventional follow up with no visits or phone calls. RESULTS: Two hundred patients were randomized (101 in the intervention group and 99 in the control group. After six months, a significant improvement was observed in self-care and knowledge about the disease in the intervention group (P=0.001 and POBJETIVO: Verificar el efecto de una intervención educativa de enfermería combinada de visita domiciliaria y contacto telefónico en pacientes con internación reciente por insuficiencia cardiaca descompensada, en el conocimiento de la enfermedad, las habilidades para el autocuidado y la adhesión al tratamiento comparado con el acompañamiento convencional de pacientes en el período de seis meses. MÉTODOS: Ensayo Clínico Aleatorizado en pacientes que fueron ingresados recientemente por insuficiencia cardiaca descompensada. El grupo intervención recibió cuatro visitas domiciliarias y cuatro contactos telefónicos para reforzar las orientaciones en seis meses de acompañamiento; el grupo control recibió acompañamiento convencional sin visitas y sin contactos telefónicos. RESULTADOS: Fueron aleatorizados doscientos pacientes (101: intervención y 99: control. Tras seis meses, se observó una mejoría significativa en el conocimiento y el autocuidado para el grupo intervención (P=0,001 y POBJETIVO: verificar o efeito de uma intervenção educativa de enfermagem combinada, caracterizada por visita domiciliar e contato telefônico, em

  18. Buone pratiche didattiche per prevenire falsi positivi nelle diagnosi di discalculia: il progetto “PerContare”

    OpenAIRE

    Anna Ethelwyn Baccaglini-Frank; Maria Giuseppina Bartolini Bussi

    2015-01-01

    Per contrastare il fenomeno dei falsi positivi nelle diagnosi di discalculia in Italia, tra i bambini di terza elementare, è stato realizzato un progetto triennale (2011-2014), fondato sulla collaborazione tra ricercatori in psicologia e didattica della matematica. Durante il progetto sono state elaborate e sperimentate pratiche didattiche atte a prevenire e affrontare difficoltà di apprendimento nell’ambito dell’aritmetica all’inizio della scuola primaria. In questo articolo vengono discusse...

  19. Campagna di social marketing per sensibilizzare all'uso delle cinture di sicurezza e dispositivi per bambini

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    S. Cinquetti

    2003-05-01

    Full Text Available

    Obiettivi: aumento del 10% dell’uso delle cinture di sicurezza anteriori e posteriori e del 20% dei seggiolini per bambini nella Regione del Veneto.

    Metodi: il Programma Regionale di Prevenzione dei Traumi da Traffico è stato varato nel 1998 e rifinanziato nel 2002 per un secondo triennio. Fa capo alla Direzione per la Prevenzione dell’Assessorato alle Politiche Sanitarie del Veneto, coinvolge i Dipartimenti di Prevenzione di tutte le Aziende ULSS del Veneto e ha come capofila l’azienda ULSS 7 di Pieve di Soligo (TV. Nell’ambito del programma, il 16 maggio 2003 è stata avviata una campagna di marketing sociale finanziata dalla fondazione CARIVERONA e commissionata ad un’ agenzia pubblicitaria leader del settore. La campagna è stata preceduta da ricerca formativa con 19 focus group e 12 interviste, volta ad analizzare il punto di vista dei diversi target, nonché degli attori principali coinvolti (Forze dell’Ordine, autoscuole, etc. Dopo un test di gradimento, la campagna è partita con spot televisivi e radiofonici, inserzioni nei giornali e manifesti informativi destinati alle scuole medie superiori, alle scuole guida nonché agli ambulatori dei medici di famiglia. Attraverso i media si sostiene una serie di azioni nel territorio che coinvolgeranno le amministrazioni comunali, le forze di polizia e le associazioni di volontariato.

    Risultati: l’efficacia della campagna viene valutata attraverso due distinte rilevazioni dell’uso delle cinture di sicurezza/seggiolini, confrontando i dati raccolti prima della campagna e dopo.

    Conclusioni: i traumi da traffico rappresentano nel Veneto un’importante causa di mortalità e morbosità. Il programma regionale ha utilizzato la tecnica innovativa del marketing sociale come strumento essenziale per sostenere i cambiamenti comportamentali necessari a prevenire l’incidentalità da traffico nel

  20. Circadian clock genes Per1 and Per2 regulate the response of metabolism-associated transcripts to sleep disruption.

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    Jana Husse

    Full Text Available Human and animal studies demonstrate that short sleep or poor sleep quality, e.g. in night shift workers, promote the development of obesity and diabetes. Effects of sleep disruption on glucose homeostasis and liver physiology are well documented. However, changes in adipokine levels after sleep disruption suggest that adipocytes might be another important peripheral target of sleep. Circadian clocks regulate metabolic homeostasis and clock disruption can result in obesity and the metabolic syndrome. The finding that sleep and clock disruption have very similar metabolic effects prompted us to ask whether the circadian clock machinery may mediate the metabolic consequences of sleep disruption. To test this we analyzed energy homeostasis and adipocyte transcriptome regulation in a mouse model of shift work, in which we prevented mice from sleeping during the first six hours of their normal inactive phase for five consecutive days (timed sleep restriction--TSR. We compared the effects of TSR between wild-type and Per1/2 double mutant mice with the prediction that the absence of a circadian clock in Per1/2 mutants would result in a blunted metabolic response to TSR. In wild-types, TSR induces significant transcriptional reprogramming of white adipose tissue, suggestive of increased lipogenesis, together with increased secretion of the adipokine leptin and increased food intake, hallmarks of obesity and associated leptin resistance. Some of these changes persist for at least one week after the end of TSR, indicating that even short episodes of sleep disruption can induce prolonged physiological impairments. In contrast, Per1/2 deficient mice show blunted effects of TSR on food intake, leptin levels and adipose transcription. We conclude that the absence of a functional clock in Per1/2 double mutants protects these mice from TSR-induced metabolic reprogramming, suggesting a role of the circadian timing system in regulating the physiological effects

  1. La iniciativa de vivienda saludable en el Perú

    Directory of Open Access Journals (Sweden)

    Rosario Santa María

    2008-10-01

    Full Text Available El objetivo del presente documento es identificar los principales indicadores relacionados con la salud de las familias en su domicilio y peridomicilio y, de tal manera, comprender la importancia de difundir en nuestro país la Iniciativa de Vivienda Saludable promovida por la Organización Panamericana de la Salud. Nos hemos focalizado en los factores de salud relacionados con la vivienda en las diferentes regiones del Perú, teniendo en cuenta las formas de vida locales, priorizando el análisis en los sectores socio-económicos de menores ingresos de las ciudades y con la consideración de que el tema de la vivienda saludable es un componente importante dentro de la salud ambiental. El contenido es resultado de entrevistas a profesionales con experiencia en los temas de salud y vivienda, así como contrastar información bibliográfica y periodística con nuestra apreciación subjetiva de la realidad, para llegar a conclusiones y recomendaciones generales. Ante las condiciones de la vivienda en el Perú y sus repercusiones en la salud de la población, se hizo necesario favorecer la conformación de una red nacional que agrupe a diversas instituciones públicas y privadas que vienen promoviendo en el Perú, desde diversos enfoques, el mejoramiento de las condiciones de la vivienda y de su entorno, con el propósito de complementar sus capacidades y apoyarse mutuamente en sus desempeños. Finalmente, consideramos que la vivienda saludable es un derecho y deber de las personas, en sintonía con el derecho a la salud y a la vida y la corresponsabilidad entre gobierno local y ciudadanía.

  2. O período toxêmico da esquistossomose

    Directory of Open Access Journals (Sweden)

    J. Leocádio

    1969-06-01

    Full Text Available O A. apresenta seis casos de pacientes observados durante o período toxêmico da esquistosomose mansônica. Dêstes, um foi de mulher cuja sintomatologia datava de um ano. Concebeu e deu à luz durante a enfermidade. Apresentava sinais de fibrose hepática quando do primeiro exame, ainda na vigência de sintomas do período agudo da enfermidade. Todos êstes pacientes apresentavam febre, dores abdominais, hepatoesplenomegalia e outras manifestações que têm sido descritas neste período da parasitose. Como notas dominantes no hemograma, leucocitose com eosinofilia, como ocorre nas infecções por helmintos com ciclo textrino, e anemia. Esta, nem todos apresentavam. Além de alterações do equilíbrio proteico e de resultados da exploração funcional do fígado, o A. chamou a atenção para a hípoglicemia e hipocolesterolemia encontradas em alguns dos observados. Foi digno de registro, também, a positividade tardia da intradermorreação para diagnóstico da esquistosomose. Todos os pacientes foram submetidos a tratamento antimonial, com bom resultado. Como reação colateral devemos mencionar a exacerbação da febre forçando, por vêzes à interrupção do mesmo. O A. faz referências a outros recursos terapêuticos empregados no Oriente: o F30.066, um nitrofurano de uso oral, e as sementes de Cucurbita moshata. Sugere a investigação em animais e no homem com sementes de abóbora outrora empregadas como tenifugo

  3. CALiPER Exploratory Study: Recessed Troffer Lighting

    Energy Technology Data Exchange (ETDEWEB)

    Miller, Naomi J.; Royer, Michael P.; Poplawski, Michael E.

    2013-04-28

    This report describes an exploration of troffer lighting as used in office and classroom spaces, which was conducted by the CALiPER program. Twenty-four pairs of 2×2 and 2×4 troffers were procured anonymously, documented, tested for photometric and electrical performance, and installed in a mockup office space in Portland, Oregon. Three of the pairs were T8 fluorescent benchmark products, 12 were dedicated LED troffers, five were fluorescent troffers modified for LED lamps (sometimes referred to as "tubes"), and another four troffers were modified with LED retrofit kits. The modifications were performed by a commercial electrical contractor, following the instructions provided by the retrofit lamp or kit manufacturer. Once installed in the mockup facility, the converted luminaires were examined by a NRTL (Nationally Recognized Testing Laboratory) safety expert, who provided feedback on safety issues. In September 2012, a group of lighting designers, engineers, and facility managers were brought in to observe the LED luminaires in comparison to fluorescent benchmarks. This report documents performance in measures that go beyond illuminance values or luminaire efficacy. Dedicated LED troffers are ready to compete with fluorescent troffers in terms of efficacy (lumens per watt), and in many lighting quality issues such as glare, light distribution, visual appearance, and color quality. That is not to say that each one is stellar, but each one tested in this CALiPER study bested the fluorescent benchmarks in terms of efficacy, and almost all were rated highly in several categories -- only one luminaire of twelve performed consistently poorly.

  4. Indicazioni Geografiche, Strategie di Differenziazione e Politiche per il Consumatore

    OpenAIRE

    Capelli, Maria Giacinta

    2014-01-01

    Il presente lavoro si pone un duplice obiettivo: analizzare il contesto dei marchi di origine in Italia e indagare la domanda e l’offerta di Prosciutto di Parma DOP. Per raggiungere questo scopo la ricerca è stata organizzata in tre parti: la prima, attraverso l’articolo “The resilient character of PDO/PGI products in dynamic food markets: the Italian case” (Arfini e Capelli, 2011), si propone di fornire un quadro esaustivo delle caratteristiche economiche delle denominazioni DOP e IGP it...

  5. Flacourtiaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Flacourtiaceae es reconocida en el Perú por presentar 19 géneros y 65 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, mayormente arbustos y árboles. En este trabajo reconocemos tres especies endémicas en dos géneros, las cuales ocupan la región de los Bosques Muy Húmedos Montanos, entre los 2300 y 3600 m de altitud. Solamente una de estas especies se encuentra representada en el Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  6. LabTD: un laboratorio di tecnologie didattiche per docenti

    Directory of Open Access Journals (Sweden)

    Maria Ferraris

    2007-01-01

    Full Text Available Descrizione del progetto e l’avvio di un ambiente prototipo, dentro ad una scuola, dedicato al lavoro degli insegnanti e alla loro formazione permanente. LabTD e’ stato immaginato come un ambiente attrezzato per docenti, la cui ragion d’essere non sta tanto nei temi affrontati o nelle tecnologie di cui e’ dotato, quanto nell’idea che la crescita professionale degli insegnanti dipenda in gran parte dalle opportunita’, dalle risorse e dagli stimoli offerti dal contesto in cui operano.

  7. Book Review, Per non scoprirlo mangiando… ,Maria Caramelli

    Directory of Open Access Journals (Sweden)

    Manuel Graziani

    2013-06-01

    Full Text Available L'incidenza delle malattie trasmesse dagli alimenti sta crescendo in maniera esponenziale, le insidie nascoste negli alimenti sono sempre di più e di varia natura. Questo accade soprattutto in Occidente: "Nei Paesi del terzo mondo ci si ammala e si muore per l'assenza di cibo. Nei Paesi industrializzati, invece, ogni anno più di una persona su quattro contrae malattie associate al consumo di alimenti." Si stima che nel 2010 in Europa più di 45.000 persone si siano ammalate a causa di acqua o cibo contaminati; secondo i dati dell'Istituto Superiore di Sanità in Italia sono circa 30.000 all'anno le tossinfezioni alimentari. Un incremento di malattie alimentari che, per paradosso, è frutto dell'evoluzione di un mondo senza più frontiere nel quale gli scambi di animali, mangimi e materie prime di origine animale sono oramai incontrollabili.Nonostante i consumatori europei pongano i rischi chimici (come gli additivi in cima alle preoccupazioni per la propria sicurezza alimentare, secondo la FAO e l'OMS i pericoli maggiori sono invece di natura microbiologica, riguardano cioè virus e batteri in grado di provocare intossicazioni e infezioni con conseguenze anche drammatiche: microrganismi spesso difficili da identificare e in continua espansione, favoriti dalla globalizzazione, dalla trasformazione delle nostre abitudini, dalla complessità dei processi di produzione e distribuzione dei cibi.L'agile libro della dott.ssa Maria Caramelli, Direttore generale dell'IZS di Piemonte Liguria e Valle d'Aosta ed esperta di sicurezza alimentare (una delle più autorevoli studiose italiane di BSE, indaga il vasto mondo delle malattie alimentari partendo dai casi che hanno scatenato allarmi sanitari e crisi economiche di vaste proporzioni scuotendo mass media e opinione pubblica: mucca pazza (BSE, influenza aviaria, diossina nei maiali, mozzarella blu "color puffo", ricotta rosa, fino all'epidemia tedesca del batterio killer nei germogli che tra maggio e

  8. Book Review, Per non scoprirlo mangiando… ,Maria Caramelli

    OpenAIRE

    Manuel Graziani

    2013-01-01

    L'incidenza delle malattie trasmesse dagli alimenti sta crescendo in maniera esponenziale, le insidie nascoste negli alimenti sono sempre di più e di varia natura. Questo accade soprattutto in Occidente: "Nei Paesi del terzo mondo ci si ammala e si muore per l'assenza di cibo. Nei Paesi industrializzati, invece, ogni anno più di una persona su quattro contrae malattie associate al consumo di alimenti." Si stima che nel 2010 in Europa più di 45.000 persone si siano ammalate a causa di acqua o ...

  9. Tripolitania e Cirenaica: un futuro per il patrimonio

    OpenAIRE

    Mastino, Attilio

    2012-01-01

    In Libia, nel fondo del Mediterraneo, al centro della Grande Sirte, c'è un luogo che non è un luogo, Ras Ali (Graret Gser et Trab), le antiche Arae Philenorum, il favoloso muchòs, il sacco del Mediterraneo, dove cultura punica e cultura ellenistica si sono toccate, più tardi cultura latina e cultura greca, e poi vandala, bizantina e araba; Sallustio ricorda: quem locum Aegyptum versus finem imperli habuere Carthaginienses, là dove i due fratelli Fileni si sarebbero fatti uccidere per se...

  10. Green economy: un'occasione per le aree montane

    Directory of Open Access Journals (Sweden)

    Maria Sapone

    2013-06-01

    Full Text Available È ormai opinione largamente condivisa che l’attuale “crisi” dell’organismo territoriale non sia soltanto economica ma anche ambientale. Quest’ultima tematica unita a quella della green economy potrebbero rappresentare l'occasione di intervenire sui sistemi territoriali non urbani, un tempo vitali per l’economia locale, ed oggi abbandonati a se stessi a favore delle aree urbanizzate, luoghi economicamente più vantaggiosi. Partendo dalle indicazioni del Programma per l’Ambiente delle Nazioni Unite (UNEP si potrebbero definire politiche di sviluppo al fine di migliorare la competitività e l'attrattività dei sistemi territoriali rurali attraverso la valorizzazione delle risorse endogene presenti su tali territori, con l’obiettivo di favorire lo sviluppo ecosostenibile delle diverse attività al fine di creare una rete integrata. La ricerca svolta presenta le diverse dinamiche legate alla creazione di una rete di Eco-Villaggi, con lo scopo di rifunzionalizzare il patrimonio edilizio e urbanistico esistente, migliorando, così, la qualità della vita dei centri montani. Questo modello può rappresentare concretamente una delle possibili soluzioni allo spopolamento, nel conservare e tutelare lo spazio naturale attraverso la promozione della green economy, basata sull’utilizzo di sistemi di produzione sostenibili, nel rispetto dei requisiti ambientali, nell’attivazione di sistemi energetici rinnovabili e nel richiamo turistico del patrimonio storico-culturale della montagna. Infatti queste risorse se gestite nel modo corretto, attraverso una attenta pianificazione territoriale, potrebbero rappresentare il volano per un modello di sviluppo sostenibile e allo stesso tempo potrebbero avviare una riqualificazione e valorizzazione dei borghi rurali, che spesso ospitano un patrimonio architettonico di notevole pregio. Risulta necessario, per i contesti rurali, porre in atto strumenti, modalità e forme innovative d’intervento capaci

  11. Cyclanthaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Cyclanthaceae es reconocida en el Perú por presentar nueve géneros y 37 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, mayormente hierbas y lianas. En este trabajo reconocemos siete endemismos en tres géneros. Los taxones endémicos ocupan dos de las regiones ecológicas, Bosque Húmedo Amazónico y Bosque Húmedo Premontano, entre los 180 y 1100 m de altitud. Dos de estos taxones endémicos se encuentran representados en áreas naturales protegidas.

  12. La oferta de trabajo en el Perú.

    OpenAIRE

    Reyna García, Debora Rosilene

    2015-01-01

    En esta tesis se estima la elasticidad de la oferta laboral para Perú en el periodo 2004-2012. Para ello, se utiliza la técnica de panel dinámico desarrollada por Arellano-Bond (1991), esto permite lidiar con los problemas de sesgos de selección y variables no observables. Las variables explicativas a utilizarse son el género, la edad, el tamaño de la empresa, la experiencia y el nivel educativo. Utilizando datos de la Encuesta Nacional de Hogares se encuentra que la elasticidad de la ofer...

  13. Convolvulaceae endémicas del Perú

    OpenAIRE

    Blanca León

    2013-01-01

    La familia Convolvulaceae es reconocida en el Perú por presentar 17 géneros y 132 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), mayormente bejucos y lianas. En este trabajo reconocemos nueve especies y una subespecie como endemismos peruanos en cuatro géneros. Los taxones endémicos ocupan principalmente las regiones Matorral Desértico, Bosques Secos y Desierto Cálido Tropical, entre los 100 y 2000 m de altitud. Ninguna de estas especies se encuentra representada en el Siste...

  14. Convolvulaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Convolvulaceae es reconocida en el Perú por presentar 17 géneros y 132 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, mayormente bejucos y lianas. En este trabajo reconocemos nueve especies y una subespecie como endemismos peruanos en cuatro géneros. Los taxones endémicos ocupan principalmente las regiones Matorral Desértico, Bosques Secos y Desierto Cálido Tropical, entre los 100 y 2000 m de altitud. Ninguna de estas especies se encuentra representada en el Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  15. MELAS en el Perú: reporte de caso.

    OpenAIRE

    Escalante-Gavancho, Carlos; Vattuone-Echevarría, Jorge A.; Candia-Rivera, Elizabeth; Isidro-Huarcaya, Jaime; Escalante-Canorio, Jorge

    2015-01-01

    El síndrome de MELAS es una rara citopatía mitocondrial de difícil diagnóstico. Reportamos el caso de una niña de 10 años, que ingresó al Instituto Nacional de Ciencias Neurológicas de Lima, Perú, quien presentó episodios bruscos similares a accidentes cerebrovasculares y crisis epilépticas. Los estudios de neuroimágenes mostraron infartos y el examen genético fue positivo para MELAS identificando la mutación más frecuente A3243G.

  16. Burmanniaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Burmanniaceae es reconocida en el Perú por presentar ocho géneros y 16 especies (Brako & Zarucchi, 1993, principalmente hierbas saprófitas. En este trabajo reconocemos un endemismo en el genero Burmannia. Esta especie endémica posee un amplio grado de adaptación ambiental, habiéndosele localizado en las vertientes occidentales, valles interandinos, páramos y bosques montanos orientales, entre los 1200 y 4100 m de altitud. Esta especie se encuentra representada en un área natural protegida.

  17. Chloranthaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Chloranthaceae es reconocida en el Perú por presentar un género, Hedyosmum, y 14 especies (Brako & Zarucchi, 1993, todos ellas árboles y/o arbustos. En este trabajo reconocemos una especie endémica, la cual ocupa la región Bosques Muy Húmedos Montanos, entre los 1900 y 2650 m de altitud, y está representada dentro del Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  18. Circuiti fondamenti di circuiti per l'ingegneria

    CERN Document Server

    de Magistris, Massimiliano

    2016-01-01

    Questo libro è un testo introduttivo ai circuiti per i corsi delle Facoltà di Ingegneria, al primo livello. Esso parte dai concetti di intensità di corrente, tensione e potenza elettrica, introducendo le leggi di Kirchhoff ed il modello circuitale su base fisica. Vengono poi introdotti gli elementi circuitali fondamentali ed illustrate le proprietà generali dei circuiti. Successivamente sono trattati i circuiti lineari e tempo invarianti in maniera completa, sviluppandone le principali tecniche di analisi. Nonostante il taglio introduttivo e l’attenzione ad uno stile piano ed accessibile, il testo si propone di affrontare il modello circuitale in modo rigoroso ed al tempo stesso moderno.

  19. La fisica del Novecento per un bilancio critico

    CERN Document Server

    Selleri, Franco

    1999-01-01

    Ma chi ha detto che la fine della fisica è vicina? Che tutto quello che c'era da scoprire è già stato scoperto? E che le generazioni future potranno solo precisare e raffinare, e mai negare o arricchire le attuali teorie? Questo libro si contrappone a pensatori come Heisenberg, Feyman e Hawking che hanno predetto la morte della fisica. L'autore sostiene che grandi progressi sono possibili, ma che il prezzo da pagare per realizzarli è una modifica radicale delle basi della fisica moderna, in particolare abbandonando l'indeterminismo, la non località (paradosso di Einstein, Podolsky e Rosen) e lo stesso principio di relatività.

  20. Rutaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Rutaceae es reconocida en el Perú por presentar 25 géneros y 76 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, principalmente árboles y arbustos. En este trabajo reconocemos seis endemismos, representando igual número de géneros. Los taxones endémicos se encuentran en las regiones Bosques Húmedos Amazónicos, Bosques Muy Húmedos Premontanos y Mesoandina, entre los 130 y 2000 m de altitud. Tres taxones se encuentran representados dentro del Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  1. Buxaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Buxaceae es reconocida en el Perú por presentar un género, Styloceras, y tres especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, todos arbustos. En este trabajo reconocemos un endemismo. Esta especie endémica se encuentra en la región Bosques Muy Húmedos Montanos, entre los 1800 y 1850 m de altitud. No está representada en el Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  2. Olacaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Olacaceae es reconocida en el Perú por presentar nueve géneros y 23 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, la mayoría árboles y arbustos. En este trabajo reconocemos un endemismo en el género Aptandra. Esta especie se encuentra en la región Bosques Húmedos Amazónicos, entre los 100 y 150 m de altitud. No está registrada en el Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  3. Vochysiaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Vochysiaceae es reconocida en el Perú por presentar cuatro géneros y 32 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, todas árboles. En este trabajo reconocemos dos especies endémicas en el género Qualea. Estas especies endémicas han sido encontradas en la región Bosques Húmedos Amazónicos, entre los 100 y 160 m de altitud. Ninguna especie endémica se encuentra representada dentro del Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  4. Rosaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Wilfredo Mendoza

    2013-10-01

    Full Text Available La familia Rosaceae es reconocida en el Perú por presentar 24 géneros y 113 especies (Brako & Zarucchi, 1993; Mendoza, 2005; Ulloa Ulloa et al., 2004, entre hierbas, arbustos y árboles. En este trabajo reconocemos 14 especies endémicas en cuatro géneros. Las especies endémicas se encuentran principalmente en las regiones Bosques Pluviales Montanos, Bosques Muy Húmedos Montanos y Páramo, entre los 1900 y 3800 m de altitud. Seis especies endémicas se encuentran representadas dentro del Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  5. Buddlejaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Buddlejaceae es reconocida en el Perú por presentar dos géneros y 16 especies (Norman, 2000; Ulloa Ulloa et al., 2004, principalmente arbustos. En este trabajo reconocemos dos especies endémicas en el género Buddleja. Estos taxones endémicos se encuentran en las regiones Mesoandina, Puna Húmeda y Seca y Páramo, entre los 2650 y 3900 m de altitud. Una de estas dos especies se encuentra representada dentro del Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  6. Begoniaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Begoniaceae es reconocida en el Perú por presentar un género, Begonia, y 76 especies (Brako & Zarucchi, 1993, mayormente hierbas. En este trabajo reconocemos 38 endemismos. La mayoría de estos taxones endémicos ocupan las regiones de Bosques Húmedos Amazónicos y Bosques Muy Húmedos Montanos y Premontanos, entre los 400 y 2500 m de altitud. Se aplicaron las categorías y criterios de la UICN a diez taxones. Aparentemente, sólo una de estas especies se encuentra representada dentro del Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  7. Tropaeolaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available Esta es la familia de la «mashua». La familia Tropaeolaceae es reconocida en el Perú por presentar un género, Tropaeolum, y 24 especies (Brako & Zarucchi, 1993, todas herbáceas y bejucos. En este trabajo reconocemos 10 especies endémicas, las cuales se encuentran principalmente en las regiones Bosques Muy Húmedos Montanos y Mesoandina, entre los 1800 y 3200 m de altitud. Una especie, aparentemente, se encuentra representada dentro del Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  8. Wissenschaftliche Persönlichkeiten fallen nicht vom Himmel

    Directory of Open Access Journals (Sweden)

    Anina Mischau

    2003-03-01

    Full Text Available Steffani Engler geht in ihrer Studie der Frage nach, wie und durch was eine wissenschaftliche Persönlichkeit im sozialen Feld der Wissenschaft konstruiert wird. Hierzu beschreibt und analysiert sie den Karriereweg von vier Professoren und zwei Professorinnen. Obgleich sich die Autorin damit in der Biographieforschung verortet, beschreitet sie für ihre Fragestellung, auch in Abgrenzung zu gängigen Methoden und Ansätzen dieser Forschungsrichtung, neue Wege: Ihre Interpretation und Analyse nimmt sie in Anlehnung an das von Pierre Bourdieu entwickelte „Konzept des Verstehens“ vor und vollzieht dabei einen Blickwechsel weg vom Individuum hin zur Funktionsweise des wissenschaftlichen Feldes.

  9. Android application for handwriting segmentation using PerTOHS theory

    Science.gov (United States)

    Akouaydi, Hanen; Njah, Sourour; Alimi, Adel M.

    2017-03-01

    The paper handles the problem of segmentation of handwriting on mobile devices. Many applications have been developed in order to facilitate the recognition of handwriting and to skip the limited numbers of keys in keyboards and try to introduce a space of drawing for writing instead of using keyboards. In this one, we will present a mobile theory for the segmentation of for handwriting uses PerTOHS theory, Perceptual Theory of On line Handwriting Segmentation, where handwriting is defined as a sequence of elementary and perceptual codes. In fact, the theory analyzes the written script and tries to learn the handwriting visual codes features in order to generate new ones via the generated perceptual sequences. To get this classification we try to apply the Beta-elliptic model, fuzzy detector and also genetic algorithms in order to get the EPCs (Elementary Perceptual Codes) and GPCs (Global Perceptual Codes) that composed the script. So, we will present our Android application M-PerTOHS for segmentation of handwriting.

  10. Dorsomedial prefontal cortex supports spontaneous thinking per se.

    Science.gov (United States)

    Raij, T T; Riekki, T J J

    2017-06-01

    Spontaneous thinking, an action to produce, consider, integrate, and reason through mental representations, is central to our daily experience and has been suggested to serve crucial adaptive purposes. Such thinking occurs among other experiences during mind wandering that is associated with activation of the default mode network among other brain circuitries. Whether and how such brain activation is linked to the experience of spontaneous thinking per se remains poorly known. We studied 51 healthy subjects using a comprehensive experience-sampling paradigm during 3T functional magnetic resonance imaging. In comparison with fixation, the experiences of spontaneous thinking and spontaneous perception were related to activation of wide-spread brain circuitries, including the cortical midline structures, the anterior cingulate cortex and the visual cortex. In direct comparison of the spontaneous thinking versus spontaneous perception, activation was observed in the anterior dorsomedial prefrontal cortex. Modality congruence of spontaneous-experience-related brain activation was suggested by several findings, including association of the lingual gyrus with visual in comparison with non-verbal-non-visual thinking. In the context of current literature, these findings suggest that the cortical midline structures are involved in the integrative core substrate of spontaneous thinking that is coupled with other brain systems depending on the characteristics of thinking. Furthermore, involvement of the anterior dorsomedial prefrontal cortex suggests the control of high-order abstract functions to characterize spontaneous thinking per se. Hum Brain Mapp 38:3277-3288, 2017. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

  11. Regional Per Capita Solar Electric Footprint for the United States

    Energy Technology Data Exchange (ETDEWEB)

    Denholm, P.; Margolis, R.

    2007-12-01

    In this report, we quantify the state-by-state per-capita 'solar electric footprint' for the United States. We use state-level data on population, electricity consumption, economic activity and solar insolation, along with solar photovoltaic (PV) array packing density data to develop a range of estimates of the solar electric footprint. We find that the solar electric footprint, defined as the land area required to supply all end-use electricity from solar photovoltaics, is about 181 m2 per person in the United States. Two key factors that influence the magnitude of the state-level solar electric footprint include how industrial energy is allocated (based on location of use vs. where goods are consumed) and the assumed distribution of PV configurations (flat rooftop vs. fixed tilt vs. tracking). The solar electric footprint is about 0.6% of the total land area of the United States with state-level estimates ranging from less than 0.1% for Wyoming to about 9% for New Jersey. We also compare the solar electric footprint to a number of other land uses. For example, we find that the solar electric footprint is equal to less than 2% of the land dedicated to cropland and grazing in the United States.

  12. Ka-Band, Multi-Gigabit-Per-Second Transceiver

    Science.gov (United States)

    Simons, Rainee N.; Wintucky, Edwin G.; Smith, Francis J.; Harris, Johnny M.; Landon, David G.; Haddadin, Osama S.; McIntire, William K.; Sun, June Y.

    2011-01-01

    A document discusses a multi-Gigabit-per-second, Ka-band transceiver with a software-defined modem (SDM) capable of digitally encoding/decoding data and compensating for linear and nonlinear distortions in the end-to-end system, including the traveling-wave tube amplifier (TWTA). This innovation can increase data rates of space-to-ground communication links, and has potential application to NASA s future spacebased Earth observation system. The SDM incorporates an extended version of the industry-standard DVB-S2, and LDPC rate 9/10 FEC codec. The SDM supports a suite of waveforms, including QPSK, 8-PSK, 16-APSK, 32- APSK, 64-APSK, and 128-QAM. The Ka-band and TWTA deliver an output power on the order of 200 W with efficiency greater than 60%, and a passband of at least 3 GHz. The modem and the TWTA together enable a data rate of 20 Gbps with a low bit error rate (BER). The payload data rates for spacecraft in NASA s integrated space communications network can be increased by an order of magnitude (>10 ) over current state-of-practice. This innovation enhances the data rate by using bandwidth-efficient modulation techniques, which transmit a higher number of bits per Hertz of bandwidth than the currently used quadrature phase shift keying (QPSK) waveforms.

  13. Orchidaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    José Roque

    2013-10-01

    Full Text Available La familia Orchidaceae constituye para la flora peruana la familia más diversa, con alrededor de 212 géneros y 2020 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, aunque se estima que el número real podría oscilar entre 2500 y 3500 especies (Collantes, com. pers.. La mayoría son hierbas epífitas o terrestres, aunque hay también las que presentan ambos hábitos. En este trabajo reconocemos 775 endemismos en 137 géneros, lo que la constituye también en la familia con más taxones restringidos al Perú. Estos endemismos han sido encontrados en varias regiones ecológicas, principalmente en la Bosques Muy Húmedos Montanos, Bosques Muy Húmedos Premontanos y Mesoandina, entre los 100 y 4600 m de altitud. La destrucción de sus hábitats y el comercio ilegal de plantas silvestres la hacen particularmente vulnerable desde el punto de vista de conservación. Ciento cinco taxones se encuentran en áreas naturales protegidas.

  14. LHC Report: 1,033 bunches per beam and counting

    CERN Multimedia

    Jorg Wenninger for the LHC team

    2015-01-01

    Following the second technical stop, the first beams were injected into the LHC in the early evening of Saturday, 5 September. About ten days later, the machine was operated with around 1,000 bunches per beam.    Evolution of the stored energy per LHC beam, over time.   The first step after a technical stop consists of running through a full LHC cycle, from injection to collisions and beam dump, with a low-intensity bunch (“probe”) to check all machine settings and equipment. This is followed by a series of collimation and absorber validation tests at different points in the LHC cycle. Low-intensity beams – typically the equivalent of three nominal bunches (3 x 1011 protons) – are expanded transversely or longitudinally, or de-bunched to verify that the collimators and absorbers are correctly intercepting lost particles. The techniques for those validations have been progressively improved, and t...

  15. Urban movements and disempowerment in Perú and Venezuela

    Directory of Open Access Journals (Sweden)

    Daniel H. LEVINE

    2010-10-01

    Full Text Available This paper addresses a core puzzle: why is continued citizen mobilization accompanied by growing disempowerment of those same citizens? Why do movements fail, leaders burn out and members disperse, and what are the implications of this organizational failure for demo¬cratic representation? Our consideration of the issues is rooted in a close examination of urban movements, mobilization, empowerment and disempowerment in the recent experience of Venezuela and Perú. The puzzle that concerns us is of course not limited to these two countries: it is common to all the Andean republics, and in different ways, to much recent experience of urban mobilization in Latin America and beyond. After a brief account of urban citizen move¬ments and politics in our two cases, we outline general reflections on the nature of empowerment and disempowerment, on the peculiar combination of strengths and weaknesses that mark many contemporary movements. A close examination of types of movements and their links with poli¬tical parties and protest follows. The character of city life is important here. We close with analysis of recent waves of urban mobilization in Perú (that sparked the ouster of president Alberto Fujimori and in Venezuela (both for and against president Hugo Chávez Frías, and with reflections on the likely future of empowerment and disempowerment for urban citizens and the implications of this perspective for democratic representation

  16. Fabaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Severo Baldeón

    2013-10-01

    Full Text Available La familia Fabaceae es reconocida en el Perú por presentar alrededor de 145 géneros y 1000 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, mayormente árboles y arbustos. En este trabajo reconocemos 234 especies y 40 variedades como endémicas en 47 géneros. Un género, Weberbauerella, es endémico del Perú. Sin lugar a dudas, el género con mayor número de especies endémicas es Lupinus, siendo al mismo tiempo el que mayor necesidad tiene de estudios taxonómicos detallados y mayor recolección. Las Fabaceae endémicas ocupan la mayoría de regiones, principalmente la Mesoandina, Puna Húmeda y Seca y Bosques Muy Húmedos Montanos, entre los 1100 y 4800 m de altitud. Se aplicaron las categorías y criterios de la UICN a 203 taxones. Diecisiete taxones endémicos se encuentran representados dentro del Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  17. Elementi di interfaccia per l’analisi di strutture murarie

    Directory of Open Access Journals (Sweden)

    Jessica Toti

    2009-04-01

    Full Text Available Il presente articolo riguarda la modellazione del comportamento meccanico di elementi in muratura intesi come sistemi eterogenei composti da malta, blocchi ed interfacce di connessione. La strategiacomputazionale che viene adottata consiste nel modellare separatamente i blocchi, i letti di malta ed le interfacce responsabili di fenomeni di decoesione malta-blocco; a tale scopo, si propone uno speciale modello di interfaccia che combina il danneggiamento con l’attrito. Si sviluppa una procedura numerica, basata sull’algoritmo backward di Eulero, per risolvere il problema evolutivo; per il passo temporale si utilizza invece la tecnica predictor-corrector a controllo di spostamenti. Si effettuano alcune applicazioni numeriche con lo scopodi verificare la capacità del modello e dell’algoritmo proposto nel riprodurre la risposta non lineare della muratura dovuta a fenomeni di degrado localizzati. Infine, si conduce lo studio della modellazione di un arco murario, confrontando i risultati numerici con quelli sperimentali; si dimostra la abilità del modello proposto nel simulare il comportamento globale della struttura ad arco in termini di carico ultimo e di meccanismo di collasso.

  18. Un corrector gramatical basat en cerques per Internet

    Directory of Open Access Journals (Sweden)

    Joaquim Moré

    2006-05-01

    Full Text Available En aquest article presentem un corrector gramatical de l'anglès destinat a escriptors no angloparlants. La principal característica d'aquest corrector és l'ús d'un motor de cerca per Internet. Com que hi ha un gran nombre de pàgines web escrites en anglès, el sistema fa la hipòtesi que un segment de text que no és present en cap pàgina web és probablement un segment de text mal escrit. El sistema també fa la hipòtesi que a la Xarxa hi trobarà exemples que ensenyaran a l'usuari com ha d'expressar el contingut del segment de text d'una manera gramatical i idiomàtica. Per tant, un cop el corrector avisa l'usuari que és millor verificar un segment del seu text, el motor cerca contextos que poden ser útils a la persona que escriu a l'hora de decidir si corregeix el segment o no. Gràcies també a l'ús d'un motor de cerca, el corrector suggereix a l'escriptor que utilitzi expressions que són més freqüents a la Xarxa en comptes de l'expressió que ha escrit. Text complet (PDF

  19. Per una teoria politica dell’impresa cooperativa

    Directory of Open Access Journals (Sweden)

    Stefano Zan

    2014-07-01

    Full Text Available Il saggio propone una traccia di ricerca per l’elaborazione di una teoria politica della cooperazione, ovvero per la considerazione del fenomeno cooperativo come caratterizzato da una peculiare modalità di azione collettiva, non ricompresa nella celebre distinzione hirschmaniana tra Exit, Voice e Loyalty. Chi partecipa all’impresa cooperativa non crede nelle possibilità di successo sia dell’opzione voice che di quella exit, ma pratica una forma diversa di azione che si basa sulla fiducia in se stessi e nei soci che hanno interessi comuni. Questa forma di azione collettiva può essere preliminarmente definita come entry. L’entry riporta all’interno del mercato chi aveva scelto l’opzione exit, conservando al tempo stesso quella carica di contestazione delle relazioni capitalistiche tipica dell’opzione voice. L’impresa cooperativa, in virtù di questa doppia caratteristica dell’azione dei suoi soci, rappresenta quindi un’opzione, oltre che economica, anche politica.

  20. The outer disk of the classical Be star ψ Per

    Science.gov (United States)

    Klement, Robert; Carciofi, Alex C.; Rivinius, Thomas; Matthews, Lynn D.; Ignace, Richard; Bjorkman, Jon E.; Vieira, Rodrigo G.; Mota, Bruno C.; Faes, Daniel M.; Štefl, Stanislav

    2017-11-01

    To this date ψ Per is the only classical Be star that was angularly resolved in radio (by the VLA at λ = 2 cm). Gaussian fit to the azimuthally averaged visibility data indicates a disk size (FWHM) of ~500 stellar radii (Dougherty & Taylor 1992). Recently, we obtained new multi-band cm flux density measurements of ψ Per from the enhanced VLA. We modeled the observed spectral energy distribution (SED) covering the interval from ultraviolet to radio using the Monte Carlo radiative transfer code HDUST (Carciofi & Bjorkman 2006). An SED turndown, that occurs between far-IR and radio wavelengths, is explained by a truncated viscous decretion disk (VDD), although the shallow slope of the radio SED suggests that the disk is not simply cut off, as is assumed in our model. The best-fit size of a truncated disk derived from the modeling of the radio SED is 100+5 -15 stellar radii, which is in striking contrast with the result of Dougherty & Taylor (1992). The reasons for this discrepancy are under investigation.

  1. Endectocide activity of a pour-on formulation containing 1.5 per cent ivermectin +0.5 per cent abamectin in cattle.

    Science.gov (United States)

    Silva, Heloisa Cristina; Prette, Nancy; Lopes, Welber Daniel Zanetti; Sakamoto, Cláudio Alessandro M; Buzzulini, Carolina; Dos Santos, Thais Rabelo; Cruz, Breno Cayeiro; Teixeira, Weslen F Pires; Felippelli, Gustavo; Carvalho, Rafael Silveira; Maciel, Willian Giquelin; Soares, Vando Edésio; da Costa, Alvimar José

    2015-01-01

    The present work aimed to evaluate, through ten different studies, the therapeutic efficacy of a new pour-on formulation, containing 1.5 per cent ivermectin +0.5 per cent abamectin, against parasites of cattle. Results obtained on trials against Rhipicephalus (Boophilus) microplus showed that the pour-on combination of 1.5 per cent ivermectin +0.5 per cent abamectin obtained superior efficacy indexes against this ectoparasite, when compared with formulations containing 0.5 per cent ivermectin, 1 per cent ivermectin and the combination of 1 per cent abamectin +20 per cent levamisole. The results of efficacy of the ivermectin+abamectin and the 0.5 per cent ivermectin against Haematobia irritans were similar. Against Cochliomyia hominivorax larvae, all pour-on formulations tested (1.5 per cent ivermectin +0.5 per cent abamectin, 0.5 per cent ivermectin and 0.5 per cent abamectin), as well as 1 per cent doramectin administered subcutaneously, were considered ineffective. Cattle medicated with 1.5 per cent ivermectin +0.5 per cent abamectin, pour-on, remained free from parasitism by Dermatobia hominis larvae during 42 days (96 per cent efficacy), while values superior to 90 per cent were obtained by 0.5 per cent ivermectin (92 per cent) and 0.5 per cent abamectin (93 per cent) until the 42nd and 35th days post treatment, respectively. Against Haemonchus placei and Oesophagostomum radiatum, the pour-on of ivermectin+abamectin showed better efficacy than the 0.5 per cent ivermectin and 0.5 per cent abamectin. As to Cooperia punctata, there was no difference regarding efficacy results obtained by the avermectins combination and abamectin. The pour-on combination of 1.5 per cent ivermectin +0.5 per cent abamectin obtained high efficacy against R. (B.) microplus, D. hominis and some species of cattle gastrointestinal helminths when compared with formulations of 0.5 per cent ivermectin and 0.5 per cent abamectin administered through the same route.

  2. Endectocide activity of a pour-on formulation containing 1.5 per cent ivermectin +0.5 per cent abamectin in cattle

    Science.gov (United States)

    Silva, Heloisa Cristina; Prette, Nancy; Lopes, Welber Daniel Zanetti; Sakamoto, Cláudio Alessandro M; Buzzulini, Carolina; dos Santos, Thais Rabelo; Cruz, Breno Cayeiro; Teixeira, Weslen F Pires; Felippelli, Gustavo; Carvalho, Rafael Silveira; Maciel, Willian Giquelin; Soares, Vando Edésio; da Costa, Alvimar José

    2015-01-01

    The present work aimed to evaluate, through ten different studies, the therapeutic efficacy of a new pour-on formulation, containing 1.5 per cent ivermectin +0.5 per cent abamectin, against parasites of cattle. Results obtained on trials against Rhipicephalus (Boophilus) microplus showed that the pour-on combination of 1.5 per cent ivermectin +0.5 per cent abamectin obtained superior efficacy indexes against this ectoparasite, when compared with formulations containing 0.5 per cent ivermectin, 1 per cent ivermectin and the combination of 1 per cent abamectin +20 per cent levamisole. The results of efficacy of the ivermectin+abamectin and the 0.5 per cent ivermectin against Haematobia irritans were similar. Against Cochliomyia hominivorax larvae, all pour-on formulations tested (1.5 per cent ivermectin +0.5 per cent abamectin, 0.5 per cent ivermectin and 0.5 per cent abamectin), as well as 1 per cent doramectin administered subcutaneously, were considered ineffective. Cattle medicated with 1.5 per cent ivermectin +0.5 per cent abamectin, pour-on, remained free from parasitism by Dermatobia hominis larvae during 42 days (96 per cent efficacy), while values superior to 90 per cent were obtained by 0.5 per cent ivermectin (92 per cent) and 0.5 per cent abamectin (93 per cent) until the 42nd and 35th days post treatment, respectively. Against Haemonchus placei and Oesophagostomum radiatum, the pour-on of ivermectin+abamectin showed better efficacy than the 0.5 per cent ivermectin and 0.5 per cent abamectin. As to Cooperia punctata, there was no difference regarding efficacy results obtained by the avermectins combination and abamectin. The pour-on combination of 1.5 per cent ivermectin +0.5 per cent abamectin obtained high efficacy against R. (B.) microplus, D. hominis and some species of cattle gastrointestinal helminths when compared with formulations of 0.5 per cent ivermectin and 0.5 per cent abamectin administered through the same route. PMID:26392893

  3. UN LASCIAPASSARE PER L’ITALIA. LA LEGGE MARONI E L’OBBLIGO DEL TEST DI ITALIANO PER STRANIERI

    Directory of Open Access Journals (Sweden)

    Giuseppe Sergio

    2011-07-01

    Full Text Available Per legge, dalla fine del 2010, gli stranieri già residenti nel nostro Paese e intenzionati a richiedere il “permesso CE per soggiornanti di lungo periodo” devono dimostrare di possedere un livello minimo di conoscenza dell’italiano. L’articolo ripercorre il contenuto di questa normativa, soffermandosi sui suoi aspetti operativi e sulle procedure per la somministrazione del test volto all’elicitazione e verifica del profilo di competenza richiesto (corrispondente all’A2 del QCER. Se la legge dimostra di considerare la lingua come irrinunciabile fattore coesivo, allineandosi peraltro a quanto già stabilito in numerosi Paesi europei, diversamente da questi ultimi in Italia il settore formativo versa in condizioni deficitarie. Anche in questa prospettiva critica, l’articolo svolge una rassegna sulla recezione della legge: sostanzialmente positiva da parte dell’opinione pubblica, più circostanziata e criticata da parte dagli addetti ai lavori e, per ragioni diverse, dagli stessi stranieri. Si propone infine un’analisi del test di italiano, così come è stato finora somministrato, cioè sulla base del Vademecum diffuso dal  Miur, ma anche tenendo contrastivamente d’occhio le linee guida precedentemente indicate dagli Enti certificatori.     A pass for Italy. The Maroni law and the obligatory Italian test for foreigners   By law, since 2010, foreign residents in Italy who wish to appy for the “EC long term stay permit” have to demonstrate a minimal knowledge of Italian. The article covers the content of this law, considering the operative aspects and the test procedures aimed at eliciting and verifying the competence profile requested (A2 level of the QCER. Although the law demonstrates that language is a necessary cohesive factor, in line with what other European countries have already established, training in Italy is not up to par with the other countries. In this critival perspective, the article discusses the

  4. Endectocide activity of a pour-on formulation containing 1.5 per cent ivermectin +0.5 per cent abamectin in cattle

    OpenAIRE

    Silva, Heloisa Cristina [UNESP; Prette, Nancy [UNESP; Lopes, Welber Daniel Zanetti [UNESP; Sakamoto, Cláudio Alessandro M; Buzzulini, Carolina; Dos Santos, Thais Rabelo [UNESP; Cruz,Breno Cayeiro; Teixeira, Weslen F Pires [UNESP; Felippelli, Gustavo [UNESP; Carvalho, Rafael Silveira; Maciel,Willian Giquelin; Soares,Vando Edésio; da Costa, Alvimar José

    2015-01-01

    The present work aimed to evaluate, through ten different studies, the therapeutic efficacy of a new pour-on formulation, containing 1.5 per cent ivermectin +0.5 per cent abamectin, against parasites of cattle. Results obtained on trials against Rhipicephalus (Boophilus) microplus showed that the pour-on combination of 1.5 per cent ivermectin +0.5 per cent abamectin obtained superior efficacy indexes against this ectoparasite, when compared with formulations containing 0.5 per cent ivermectin...

  5. DEVELOPMENT AND CORRELATION AMONG LIPPIZANER FOALS PER LINES

    Directory of Open Access Journals (Sweden)

    T. Rastija

    2002-06-01

    Full Text Available The investigations were conducted on 114 Lippizaner breed foals in Đakovo stud. The accomplished measures obtained by cattle tape after parturition and ablactation (aged six months referred to withers height, chest girth and cannon bone circumference per fathers' line. The foals dominance per lines varied as follows: line Favory 2, Maestoso 21, Neopolitano 5, Conversano 11, Pluto 40, Siglavy 9 and Tulipan 26 foals. The measuring values were processed by the statistical program SPSS/PC (Nie et al. 1975. Statistical processing was followed by correlation computation between aforesaid measures after parturition and ablactation in the total number of foals per line. Also, statistical significance between obtained values was also calculated. The smallest parturition withers height turned to be in the foals of the line Neapolitano 100.80 cm and the greatest one in the line Siglavy 108.11 cm. The smallest chest girth was with Maestoso line foals 80.19 cm and the largest one with Siglavy 86.78 cm. However, the smallest cannon bone circumference was found to be in Neapolitano line foals 11.10 cm and the largest one with the line Favory 12.50 cm. In the post ablactation period withers height ranged from 135.50 cm in the line Favory to 143.33 cm in Siglavy line whereas chest girth was from 133.00 cm in Favory line to 142.78 cm in Siglavy line. The smallest cannon bone circumference was also with Favory line foals 16.25 cm and the largest one with Conversano line 17.23 cm. Statistical significance of all three measures was more pronounced after parturition compared to the post ablactation period. Correlation for the total number ranged from r = -0.121 to r = 0.913. Correlation among the processed body measures ranged from very strong negative to complete positive. Stronger correlation with all the lines appeared to be between withers height, chest girth and cannon bone circumference.

  6. Energy System Analysis of 100 Per cent Renewable Energy Systems

    DEFF Research Database (Denmark)

    Lund, Henrik; Mathiesen, Brian Vad

    2007-01-01

    This paper presents the methodology and results of the overall energy system analysis of a 100 per cent renewable energy system. The input for the systems is the result of a project of the Danish Association of Engineers, in which 1600 participants during more than 40 seminars discussed...... and designed a model for the future energy system of Denmark, putting emphasis on energy efficiency, CO2 reduction, and industrial development. The energy system analysis methodology includes hour by hour computer simulations leading to the design of flexible energy systems with the ability to balance...... of farming areas, or mostly on wind power, which will involve a large share of hydrogen or similar energy carriers leading to certain inefficiencies in the system design....

  7. Disseny d'una sala polivalent per una societat musical

    OpenAIRE

    TORRES SALORT, JOSEP

    2015-01-01

    Disseny d’una sala polivalent per una societat musical atenent als parà- metres acústics que defineixen la qualitat acústica d’una sala d’aquestes característiques i a la màxima polivalència en el seu ús. Extracció d’uns pautes de disseny a partir de l’anàlisi de diferents sales de reduïdes dimensions i posterior creació d’un model de sala ideal. Simulació acústica i valoració de la sala inicial. Finalment, aplicació del prototip i les millores pertinents a la sala objecte d...

  8. There is no gap 'per se' between theory and practice

    DEFF Research Database (Denmark)

    Larsen, Kristian; Adamsen, Lis; Bjerregaard, Lene Berit Skov

    2003-01-01

    and practitioners in terms of the source of their knowledge. Unlike a dominant barrier paradigm, theory and practice have different logics; they are not on a continuum nor are they hierarchically ordered. They exist in their own right as theoretical knowledge and practical knowledge. In daily practice, clinical...... nurses are inspired and learn from the context, including each other, and they are active producers of knowledge, not simply recipients of knowledge. This study, therefore, claims that there is no research-practice gap “in itself” (per se) as argued in the “barriers paradigm.”......The aim of this article is to highlight relations between theory and practice and the genesis of professional action in clinical nursing and among researchers. With use of a sociologically based empirical approach, focus is placed on the knowledge involved in the work of researchers...

  9. Malvaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Magda Chanco

    2013-10-01

    Full Text Available La familia Malvaceae es reconocida en el Perú con 38 géneros y 264 especies (Brako & Zarucchi 1993, Ulloa et al. 2004, mayormente arbustos y hierbas. En este trabajo reconocemos 87 especies endémicas en 16 géneros. El género más rico en especies endémicas es Nototriche. Las especies endémicas se encuentran en varias regiones ecológicas, entre ellas Altoandina, Mesoandina y Puna Húmeda y Seca, por encima de los 2500 m, hasta alcanzar los límites de la vegetación a 5100 m de altitud. Se aplicaron las categorías y criterios de la UICN a 84 especies. Once especies endémicas se encuentran presentes en el Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  10. Online-FLIM at 10 images per second

    Science.gov (United States)

    Becker, Wolfgang; Smietana, Stefan

    2017-02-01

    We report on a technique that records and displays fluorescence lifetime images at a rate of 10 images per second. Data acquisition is based on multi-dimensional TCSPC in combination with confocal or two-photon laser scanning. The image are calculated from the TCSPC FLIM data via the first moment of the decay data in the pixels of the images. The first-moment technique combines near-ideal photon efficiency with calculation times shorter than the frame times of the commonly used galvanometer scanners. The image rate is thus not slowed down by the lifetime calculation process. Potential applications are clinical FLIM, where suspicious areas can be identified for subsequent high-accuracy imaging, and standard FLIM microscopy, where the technique it helps the user select interesting cells in a large field of view for detailed analysis.

  11. Networks as integrated in research methodologies in PER

    DEFF Research Database (Denmark)

    Bruun, Jesper

    2016-01-01

    In recent years a number of researchers within the PER community have started using network analysis as a new methodology to extend our understanding of teaching and learning physics by viewing these as complex systems. In this paper, I give examples of social, cognitive, and action mapping...... networks and how they can be analyzed. In so doing I show how a network can be methodologically described as a set of relations between a set of entities, and how a network can be characterized and analyzed as a mathematical object. Then, as an illustrative example, I discuss a relatively new example...... of using networks to create insightful maps of learning discussions. To conclude, I argue that conceptual blending is a powerful framework for constructing "mixed methods" methodologies that may integrate diverse theories and other methodologies with network methodologies....

  12. Rilievo e rappresentazione delle geometrie parametriche per l’HBIM

    Directory of Open Access Journals (Sweden)

    Leonardo Paris

    2016-06-01

    Full Text Available Nell’analisi formale di una architettura storica si possono distinguere diverse geometrie, da quelle semplici (di muri, travi, pilastri, solai ecc. a  quelle più complesse difficilmente riconducibili a geometrie regolari (a prevalente carattere scultoreo. Vi sono alcuni elementi con geometrie complesse ma comunque traducibili per mezzo di modelli matematici. Alcune forme sono poi spesso ricorrenti, apparentemente diverse, ma riconducibili a matrici comuni, che possono essere pertanto parametrizzati. L’attività di rilievo in questi casi si esplica nel rilevare non la forma nella sua complessità ma solo gli elementi parametrici, facendo poi gli opportuni riscontri tra i parametri variabili del modello elaborato in ambiente HBIM e altri modelli ricavati da point cloud. Su questo tema è stata fatta una prima sperimentazione nel rilievo della Scala Regia in Vaticano.

  13. Un approccio multidisciplinare per l’archeologia digitale

    Directory of Open Access Journals (Sweden)

    Rodolfo Maria Strollo

    2017-12-01

    Full Text Available Obiettivo del contributo è quello di indagare le potenzialità offerte da una metodologia multidisciplinare volta alla creazione di un database digitale facilmente interrogabile, sempre disponibile e scientificamente valido da impiegare per le diverse finalità legate al patrimonio culturale immobile (ricerca scientifica, interventi di manutenzione e restauro, valorizzazione culturale, promozione turistica. La banca dati è composta da modelli infografici elaborati con riferimento a rilievi tridimensionali affidabili dal punto di vista metrico e cromatico e rappresentativi di una realtà virtuale ‘aumentata’ delle informazioni storiche, iconografico-documentali e archivistiche riferite al bene. Caso studio su cui è stato sperimentato tale approccio metodologico è l’area archeologica di Tuscolo, sui Colli Albani a sud di Roma.

  14. Moraceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Pamela Cáceres

    2013-10-01

    Full Text Available La familia Moraceae es reconocida en el Perú por presentar 19 géneros y 128 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, la mayoría arbóreas y/o hemiepífitos. En este trabajo reconocemos dos especies endémicas en igual número de géneros. Las especies endémicas se encuentran en la región Bosques Húmedos Amazónicos, entre los 115 y 220 m de altitud. Ambas especies endémicas se encuentran dentro del Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  15. Liliaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Liliaceae es reconocida en el Perú con 15 géneros (excepto Alstroemeria y Bomarea y aproximadamente 29 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, todas ellas hierbas. Esta familia incluye tres géneros endémicos, Diamena, Diora y Trichlora. En este trabajo reconocemos 11 especies endémicas en cinco géneros. Se asignó las categorías de amenaza de la UICN a seis especies. La mitad de los endemismos es conocido solamente de una localidad. Los taxones endémicos ocupan las regiones del Desierto Semicálido Costero y Mesoandina, entre los 600 y 3600 m de altitud. Solamente una especie está representada en un área natural protegida.

  16. Metodi matematici per la teoria dell’evoluzione

    CERN Document Server

    Bazzani, Armando; Freguglia, Paolo

    2011-01-01

    Esistono ormai da tempo molti articoli, in particolar modo su riviste di biomatematica, di (bio)fisica e di biologia, che presentano proposte e risultati di modellistica matematica relativi direttamente ed indirettamente alla teoria dell’evoluzione. Sicuramente questi studi sono da considerarsi cruciali per l’istituzione della biologia teorica. I temi da prendere in esame sono dapprima le convinzioni che i biologi hanno in merito. Quindi un’analisi dei precedenti tentativi di formulare una teoria matematica dell’evoluzione, nonché i relativi sviluppi e insuccessi a cui abbiamo assistito nell’ambito della "teoria della complessità". La nostra proposta consiste dunque nel realizzare una teoria matematicamente formulata e biologicamente ben fondata dell’evoluzione con specifico e giustificato riferimento a quella fenotipica. Quindi su questa base costruiamo sia di un modello geometrico sia un modello dinamico stocastico. In questo modo, pur tenendo presente l’intrinseca insufficienza dell’appro...

  17. Responsabilidad social empresarial en el Perú

    Directory of Open Access Journals (Sweden)

    Manuel Porro Rivadeneira

    2008-06-01

    Full Text Available Como parte del crecimiento y el desarrollo de los agentes económicos se ha creído conveniente analizar una institución de reciente data que afecta de modo especial a los grupos de interés (stakeholders unidos a la empresa, es por ello que la presente investigación pretende analizar de modo amplio y general los aspectos más relevantes de la Responsabilidad Social Empresarial así como aquellos de difícil tratamiento y de modo específico resolveremos la pregunta ¿cómo ha avanzado en materia de instrumentalización y normatividad la Responsabilidad Social Empresarial en el Perú?

  18. Per-oral endoscopic myotomy (POEM) for esophageal achalasia.

    Science.gov (United States)

    Pescarus, Radu; Shlomovitz, Eran; Swanstrom, Lee L

    2014-01-01

    Per-oral endoscopic myotomy (POEM) is a new minimally invasive endoscopic treatment for achalasia. Since the first modern human cases were published in 2008, around 2,000 cases have been performed worldwide. This technique requires advanced endoscopic skills and a learning curve of at least 20 cases. POEM is highly successful with over 90 % improvement in dysphagia while offering patients the advantage of a low impact endoscopic access. The main long-term complication is gastroesophageal reflux (GER) with an estimated incidence of 35 %, similar to the incidence of GER post-laparoscopic Heller with fundoplication. Although POEM represents a paradigm shift in the treatment of achalasia, more long-term data are clearly needed to further define its role in the treatment algorithm of this rare disease.

  19. Multiuser switched diversity scheduling systems with per-user threshold

    KAUST Repository

    Nam, Haewoon

    2010-05-01

    A multiuser switched diversity scheduling scheme with per-user feedback threshold is proposed and analyzed in this paper. The conventional multiuser switched diversity scheduling scheme uses a single feedback threshold for every user, where the threshold is a function of the average signal-to-noise ratios (SNRs) of the users as well as the number of users involved in the scheduling process. The proposed scheme, however, constructs a sequence of feedback thresholds instead of a single feedback threshold such that each user compares its channel quality with the corresponding feedback threshold in the sequence. Numerical and simulation results show that thanks to the flexibility of threshold selection, where a potentially different threshold can be used for each user, the proposed scheme provides a higher system capacity than that for the conventional scheme. © 2006 IEEE.

  20. The time of infection of apples by Botrytis cinerea Pers.

    Directory of Open Access Journals (Sweden)

    Hanna Bryk

    2013-12-01

    Full Text Available The time of infection of apple fruits by Botrytis cinerea Pers. was studied. Artificial inoculations with conidial suspensions of B. cinerea were done at different stages of fruit developmment (flowers, sets, fruits. In autumn the apples were harvested and stored at a temperature of 2°C for 4 months after which rotting caused by B. cinerea was evaluated. B. cinerea presence in the calyx of apples was checked throughout the growing season. This was done by plating flowers, apple and set calyces on PDA medium. Latent infection of apples by B. cinerea was found. The infection took place in the orchard and the pathogen survived latently in the calyx; disease symptoms appeared in storage. Infection is possible during the whole vegetative season, but the most important time is flowering and just before or just after harvest of apples.

  1. Sviluppo e crisi. Per una prospettiva della compresenza

    Directory of Open Access Journals (Sweden)

    Andrea Pirni

    2011-02-01

    Full Text Available Il paradigma della modernità, adottando il concetto di sviluppo come tema chiave, ha elaborato moltissime teorie del mutamento: qui sviluppo e crisi risultano necessariamente contrapposti sia sotto il profilo teorico che empirico. La complessità crescente delle società europee contemporanee mette in discussione la capacità interpretativa del mutamento che le coinvolge attualmente e suggerisce l’elaborazione di nuove prospettive che focalizzino il processo di trasformazione in corso piuttosto che soffermarsi sul risultato. Dopo aver sinteticamente inquadrato il concetto di sviluppo nell’ambito del paradigma della modernità l’articolo intende sostenere l’utilità di una prospettiva che considera congiuntamente crisi e sviluppo per analizzare il mutamento delle democrazie contemporanee.

  2. Compression phase study of the HiPER baseline target

    Energy Technology Data Exchange (ETDEWEB)

    Ribeyre, X; Nicolai, Ph; Schurtz, G; Olazabal-Loume, M; Breil, J; Maire, P H; Feugeas, J L; Hallo, L; Tikhonchuk, V T [Centre Lasers Intenses et Applications, Universite Bordeaux 1, CNRS, CEA, Universite Bordeaux 1, 351, cours de la Liberation, 33405 Talence (France)

    2008-02-15

    The European High Power laser Energy Research (HiPER) project aims at demonstrating the feasibility of high gain inertial confinement fusion using the fast ignitor approach. A baseline target has been recently developed by Atzeni et al (2007 Phys. Plasmas 14 052702). We study here the robustness of this target during the compression phase and define pulse shape tolerances for a successful fuel assembly. The comparison between a standard and a relaxation pulse shows that the latter allows one to reduce both the laser power contrast and the growth of perturbations due to Rayleigh-Taylor instability. We have found that with 95 kJ of absorbed laser energy one can assemble the fuel with a peak density around 500 g cm{sup -2} and a peak areal density of 1.2 g cm{sup -2}. This implies a total target gain of about 60.

  3. Numerical simulations of the HiPER baseline target

    Energy Technology Data Exchange (ETDEWEB)

    Ribeyre, X.; Nicolai, Ph.; Schurtz, G.; Olazabal-Loume, M.; Breil, J.; Maire, P.H.; Feugeas, J.M.; Hallo, L.; Tikhonchuk, V.T. [Bordeaux-1 Univ., Centre Lasers Intenses et Applications, CNRS, CEA, 33 - Talence (France)

    2009-08-15

    The European High Power laser Energy Research (HiPER) project aims at demonstrating the feasibility of high gain inertial confinement fusion using the fast ignitor approach. A baseline target has been recently developed by Atzeni et al. [Phys. Plasmas 14, 052702 (2007)]. The radiative transport have a minor effect on the peak areal density but decreased by 20% the peak density. We have found that with 95 kJ of absorbed laser energy one can assemble the fuel with a peak density around 500 g/cm{sup 3} and a peak areal density of 1.2 g/cm{sup 2}. This implies a total target gain of about 60. (authors)

  4. Numerical simulations of the HiPER baseline target

    Energy Technology Data Exchange (ETDEWEB)

    Ribeyre, X; Nicolai, P; Schurtz, G; Olazabal-Loume, M; Breil, J; Maire, P H; Feugeas, J L; Hallo, L; Tikhonchuk, V T [Centre Lasers Intenses et Applications, Universite Bordeaux 1, CNRS, CEA, Universite Bordeaux 1, 351, cours de la Liberation, 33405 Talence (France)], E-mail: ribeyre@celia.u-bordeaux1

    2008-05-15

    The European High Power laser Energy Research (HiPER) project aims at demonstrating the feasibility of high gain inertial confinement fusion (ICF) using the fast ignitor approach. A baseline target has been recently developed by Atzeni et al. [Phys. Plasmas 14, 052702 (2007)]. The comparison between a standard and a relaxation pulse shows that the latter one allows to reduce both the laser power contrast and the growth of perturbation under Rayleigh-Taylor instability. We have found that with 95 kJ of absorbed laser energy one can assemble the fuel with to a peak density around 500 g/cm{sup 3} and to a peak areal density of 1.2 g/cm{sup 2}. This implies a total target gain of about 55.

  5. Percorsi di apprendimento per gli stranieri nella scuola italiana

    Directory of Open Access Journals (Sweden)

    Laura Sala

    2009-12-01

    Full Text Available Normal 0 14 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabella normale"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} Nell’articolo si passano in rassegna le nuove proposte editoriali per gli studenti non italofoni nella scuola secondaria di primo grado e di uno in particolare, a titolo esemplificativo, si analizzano più da vicino le caratteristiche. L’indagine considera le strategie di scrittura controllata messe in atto nei testi. Infatti, tutti questi manuali (antologie, grammatiche, libri di storia sono realizzati secondo un’idea comune: le difficoltà poste dall’italiano per lo studio agli stranieri devono essere appianate attraverso la semplificazione: per quanto riguarda le discipline scolastiche facilitare l’apprendimento significa soprattutto semplificare i testi per fornire conoscenze e nozioni fondamentali e competenze e abilità di base da cui sia possibile poi accedere a livelli più alti e raffinati. Si sottolinea, dunque, che  la versione semplificata dei testi dei manuali disciplinari deve essere intesa come strumento propedeutico, transitorio, che aiuta l’apprendente a compiere i primi passi nello sviluppo delle abilità di studio sia orali che scritte da cui procedere verso competenze linguistico-cognitive più ambiziose.  Normal 0 14 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabella normale"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} In this paper an overview is given of the new

  6. Dilleniaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Dilleniaceae es una adición reciente a la flora endémica peruana; los endemismos han sido recolectados y reconocidos hacia fines de los 1990. Está representada en el Perú por seis géneros y 23 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, la mayoría lianas. En este trabajo reconocemos tres endemismos en dos géneros. Las especies endémicas ocupan la región Bosques Húmedos Amazónicos, entre los 100 y 125 m de altitud. No se encuentra representada en el Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  7. Onagraceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Susy Castillo

    2013-10-01

    Full Text Available Esta es la familia de las «fucsias», la cual es reconocida en el Perú por presentar seis géneros y 76 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, principalmente arbustos y hierbas. En este trabajo reconocemos 24 especies endémicas, la mayoría en el género Fuchsia. Las especies endémicas se encuentran mayormente en la región Bosques Muy Húmedos Montanos, entre los 1600 y 2500 m de altitud. Diez especies endémicas se encuentran representados dentro del Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  8. Crassulaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Crassulaceae es reconocida en el Perú por presentar cinco géneros y 29 especies (Brako & Zarucchi, 1993, mayormente arbustos y hierbas. En este trabajo reconocemos 13 especies y dos variedades como endemismos peruanos en tres géneros. Echeveria es el género con el mayor número de especies endémicas. Los taxones endémicos ocupan principalmente las regiones Mesoandina y Puna Húmeda y Seca, entre los 1700 y 4500 m de altitud. Se aplicaron las categorías y criterios de la UICN a nueve taxones. Dos Crassulaceae endémicas están representados dentro del Sistema Nacional de Áreas Naturales Protegidas por el Estado.

  9. Husserl and Kant on Persönlichkeit

    Directory of Open Access Journals (Sweden)

    James Dodd

    2011-03-01

    Full Text Available This paper pursues a Kantian critique of Husserl’s theory of moral consciousness as it is found in his lectures on ethics and other shorter pieces on political and moral philosophy from the interwar period. The critique centers on Kant’s conception of moral personality (Persönlichkeit, arguing that Husserl fails to appreciate the force of this idea, subsequently leaving himself open to the charge of moral perfectionism. The paper ends with a positive assessment of Husserl’s thought, however, arguing that Husserl provides important resources for understanding moral consciousness as a sensibility for the possible, adding an important dimension to approaches in ethics that tend to center exclusively on questions of motivation and principle.   

  10. The evolution of per-cell organelle number

    Directory of Open Access Journals (Sweden)

    Logan W. Cole

    2016-08-01

    Full Text Available Organelles with their own distinct genomes, such as plastids and mitochondria, are found in most eukaryotic cells. As these organelles and their host cells have evolved, the partitioning of metabolic processes and the encoding of interacting gene products have created an obligate codependence. This relationship has played a role in shaping the number of organelles in cells through evolution. Factors such as stochastic evolutionary forces acting on genes involved in organelle biogenesis, organelle-nuclear gene interactions, and physical limitations may, to varying degrees, dictate the selective constraint that per-cell organelle number is under. In particular, coordination between nuclear and organellar gene expression may be important in maintaining gene product stoichiometry, which may have a significant role in constraining the evolution of this trait.

  11. Michail Bachtin, Su Flaubert. Per una stilistica del romanzo

    Directory of Open Access Journals (Sweden)

    Stefania Sini

    2011-12-01

    Full Text Available Presentiamo in traduzione italiana due testi di Bachtin redatti intorno agli anni 1944-1945 quali appunti preparatori a un lavoro su Gustave Flaubert. Da queste pagine lo scrittore francese mostra di rappresentare per il pensatore russo una figura molto più importante di quanto si supponesse finora. Fra i tanti motivi di estremo interesse qui presenti segnaliamo la riflessione sul ruolo degli animali in letteratura in riferimento al tema flaubertiano della bêtise – con aperture teoriche che troveranno ampie conferme negli studi letterari degli anni più recenti – e, ad essa legato, l’insistito richiamo sulla «possibilità di una visione del mondo completamente diversa», che ammetta la «curvatura» dello spazio e del tempo, quale presupposto della parola romanzesca.

  12. Responsabilidad social empresarial en el Perú

    Directory of Open Access Journals (Sweden)

    Manuel Porro Rivadeneira

    2008-07-01

    Full Text Available Como parte del crecimiento y el desarrollo de los agentes económicos se ha creído conveniente analizar una institución de reciente data que afecta de modo especial a los grupos de interés (stakeholders unidos a la empresa, es por ello que la presente investigación pretende analizar de modo amplio y general los aspectos más relevantes de la Responsabilidad Social Empresarial así como aquellos de difícil tratamiento y de modo específico resolveremos la pregunta ¿cómo ha avanzado en materia de instrumentalización y normatividad la Responsabilidad Social Empresarial en el Perú?

  13. Alstroemeriaceae endémicas del Perú

    Directory of Open Access Journals (Sweden)

    Blanca León

    2013-10-01

    Full Text Available La familia Alstroemeriaceae es reconocida en el Perú con dos géneros, Alstroemeria y Bomarea, y 85 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004, básicamente hierbas y enredaderas. En este trabajo reconocemos 22 endemismos en el género Bomarea. Estos taxones endémicos ocupan varias regiones ecológicas, incluyendo la del Bosque Húmedo Montano y de la Puna Seca y Húmeda, entre los 1000 y 4600 m de altitud. Aproximadamente un tercio de esas especies, son conocidas solamente de sus localidades tipo, ubicadas en cadenas montañosas aisladas o en cuencas que han recibido escasa herborización los últimos 80 años, como la del Monzón. Nueve de estas especies están representadas en áreas naturales protegidas.

  14. Michel de Montaigne. Per una lettura degli Essais

    Directory of Open Access Journals (Sweden)

    Giovanni Bottiroli

    2012-12-01

    Full Text Available Si riflette sullo stile di pensiero degli Essais, in cui, come afferma lo stesso Montaigne «vi è gran libertà di parlare in ogni senso, e pro e contro». Si rileva la capacità del pensatore di conferire un nuovo significato a termini tradizionali, recuperati in accezioni inedite. Emerge per esempio una nozione di forma che sa includere il molteplice senza irrigidirlo nell‟Uno. Ciò che Montaigne ri-fiuta è la concezione tradizionale di forma come essenza rigida, come insieme di tratti o di proprietà; l‟identità del soggetto umano – l‟ humaine condition – è invece una condizione flessibile, cioè aperta a destini divergenti. Il pensiero di Montaigne si può interpretare dunque come un pensiero della flessibilità.

  15. Delivering phage therapy per os: benefits and barriers.

    Science.gov (United States)

    Zelasko, Susan; Gorski, Andrzej; Dabrowska, Krystyna

    2017-02-01

    Multidrug-resistant bacterial infections of the gastrointestinal tract pose a serious public health concern. High levels of antibiotic drug resistance, along with the potential for antibiotics to precipitate disease or alter the gut microbiome has prompted research into alternative treatment methods. Evidence suggests that bacteriophage therapy delivered per os may be well-suited to target such infections. Areas covered: Herein, we discuss the specific advantages and challenges of using orally administered phage therapy. Our literature review encompasses recent works using phages to target various clinically-relevant bacteria in vivo. We also provide insights into methods that aim to overcome the barriers to effective phage transit through the harsh gastrointestinal environment. Expert commentary: Evidence from a number of in vivo animal studies suggests that targeting bacterial infections using phages delivered orally holds potential. Efficacious oral phage therapy depends on the delivery of sufficient phage titers to the infection site, which may be hindered by the host's gastrointestinal tract and immune response.

  16. La democracia en el Perú: una terca voluntad

    Directory of Open Access Journals (Sweden)

    Carolina ROMERO

    2009-11-01

    Full Text Available RESUMEN: La construcción de la democracia en el Perú es una vieja tarea que se realiza, aunque imperceptiblemente, lenta y tercamente tanto en la cultura política de los nuevos ciudadanos como en la organización política de la sociedad. El presente artículo es un ensayo sobre la aventura democrática en el primer lustro del siglo XXI yendo a las últimas décadas del siglo XX en el Perú, en las que la institucionalidad democrática adquiere nueva legitimidad, para entender las dificultades que los actores políticos encuentran y que se deben tomar en cuenta para hablar de la calidad de la democracia, en la línea que el artículo de Levine y Molina (2007 nos propone.ABSTRACT: The construction of democracy in Peru is a long standing challenge that has advanced slowly and stubbornly, if imperceptibly at time, in both the political culture of the citizens and the political organization of society. This article analyzes the «democratic adventure» in Peru in the first years of the 21st century in the context of the last two decades of the 20th, when democratic institutionalization achieved a new level of legitimacy, to identify the challenges to democracy that political actors have confronted. These elements will help analyze the quality of democracy along the lines proposed in the work of Levine and Molina (2007.

  17. El Perú y las falacias del "neopopulismo"

    Directory of Open Access Journals (Sweden)

    Aldo Olano Alori

    2006-01-01

    Full Text Available En este artículo, Aldo Olano plantea que el Perú contemporáneo hay que entenderlo como producto de circunstancias en donde confluyen aspectos de tipo histórico como también políticos, diversos modelos de desarrollo como también evidentes cambios producidos dentro de la sociedad. La idea central de este trabajo es aquella que nos indica que la ingobernabilidad recurrente es producto de un tipo de cultura política anti-institucional, pero no necesariamente anti-estatal. Se argumenta que esta situación es producto del mantenimiento de unos órdenes sociales y políticos excluyentes, a pesar de los proyectos modernizantes de corte ya sea liberal o proteccionista puestos en marcha a lo largo del siglo pasado. De la misma manera cuestiona algunos de los paradigmas con los cuales se adelantaron importantes estudios sobre el “desarrollo” político tenido por el país en las últimas décadas, por lo tanto establece que el Perú actual sería la expresión paradigmática de un desencuentro entre lo ideológico - social y lo político – institucional. En tal sentido, el estado de ingobernabilidad y preeminencia de prácticas populistas es producto de la confluencia de tres proyectos considerados en sí mismos como inconclusos: el reformismo del gobierno militar (1968-1975, el demócrata liberal (1980-1990, 2000-2006 y el autoritarismo patrimonialista (1992-2000

  18. Per-anal excision of large, rectal, villous adenomas.

    Science.gov (United States)

    Featherstone, J M; Grabham, J A; Fozard, J B

    2004-01-01

    Considering the malignant potential of villous adenoma of the rectum, complete resection at the first intervention is desirable and yet many series suggest that a high recurrence rate must be expected. The experience of one colorectal surgeon in the management of this condition is described. Between 1993 and 2000, 50 patients underwent per-anal resection of villous adenoma. The procedure was conducted in the prone jackknife position unless contraindicated, with dissection performed using a diathermy blade, with particular attention to circumferential and deep margins of excision. The mean distance of the proximal margin of the tumor from the dentate line was 5.6 (range, 0.5-11) cm. The mean length of the tumor was 5.2 (range, 0.5-9) cm. Mean anesthetic time was 27 (range, 10-110) minutes, and median hospital stay was two (range, 1-14) days. There was no significant perioperative morbidity and no mortality. On histology of ten patients, there were foci of adenocarcinoma. Excision was complete histologically in 49 patients. The median follow-up was 30 (range, 6-91) months. The patient with incomplete excision developed a probable recurrence after six months, which was ablated with diathermy (residual tumor rate, 2.1 percent). Two patients have subsequently developed villous adenoma at different sites within the rectum (metachronous tumor rate, 4.3 percent). Many series of this procedure report recurrence in up to 36 percent and significant complication in up to 19 percent of patients. Transanal endoscopic microsurgery has achieved recurrence rates of 2.8 percent and low complication rates but for economic reasons has failed to find a widespread role. This article demonstrates that large, villous tumors of the low and mid rectum can be simply and effectively treated by per-anal resection with recurrence rates equivalent to transanal endoscopic microsurgery.

  19. Le tecniche AMS e IBA del CEDAD per lo studio dei Beni Culturali, Ambientali e per la Scienza dei Materiali

    Directory of Open Access Journals (Sweden)

    Lucio Calcagnile

    2011-09-01

    Full Text Available ItGli acceleratori di particelle sono diventati un potente strumento per la diagnostica dei materiali in molti campi di ricerca. Questo articolo descrive la facility AMS-IBA installata presso il CEDAD – Centro di Datazione e Diagnostica dell’Università del Salento e riporta alcune applicazioni in Archeologia, Scienze ambientali e Scienza dei materiali.EnParticle accelerators have become a powerful tool for the diagnostics of materials in many research fields. This paper describes the AMS-IBA (Accelerator Mass Spectrometry – Ion Beam Analysis facility installed at CEDAD-Center for Dating and Diagnostics of the University of Salento, Italy and some applications in Archaeology, Environmental Sciences and Materials Science.

  20. Urban movements and disempowerment in Perú and Venezuela Movimientos urbanos y desempoderamiento en Perú y Venezuela

    Directory of Open Access Journals (Sweden)

    Daniel H. LEVINE

    2010-11-01

    Full Text Available This paper addresses a core puzzle: why is continued citizen mobilization accompanied by growing disempowerment of those same citizens? Why do movements fail, leaders burn out and members disperse, and what are the implications of this organizational failure for demo¬cratic representation? Our consideration of the issues is rooted in a close examination of urban movements, mobilization, empowerment and disempowerment in the recent experience of Venezuela and Perú. The puzzle that concerns us is of course not limited to these two countries: it is common to all the Andean republics, and in different ways, to much recent experience of urban mobilization in Latin America and beyond. After a brief account of urban citizen move¬ments and politics in our two cases, we outline general reflections on the nature of empowerment and disempowerment, on the peculiar combination of strengths and weaknesses that mark many contemporary movements. A close examination of types of movements and their links with poli¬tical parties and protest follows. The character of city life is important here. We close with analysis of recent waves of urban mobilization in Perú (that sparked the ouster of president Alberto Fujimori and in Venezuela (both for and against president Hugo Chávez Frías, and with reflections on the likely future of empowerment and disempowerment for urban citizens and the implications of this perspective for democratic representationEste artículo plantea un puzzle principal: ¿por qué la movilización ciudadana continuada viene acompañada de un crecimiento del desempoderamiento de estos mismos ciudadanos? ¿Por qué los movimientos fracasan, los líderes se desgastan y los miembros se dispersan, y cuáles son las implicaciones del fracaso organizativo para la representación democrática? Nuestra consideración del asunto encuentra sus raíces en un profundo análisis de los movimientos urbanos, de la movilización, del empoderamiento y del

  1. Patologia del legame in post-modernità: quale scambio? Per quale coppia? Per quale società?

    Directory of Open Access Journals (Sweden)

    Virginia Maloni

    2011-06-01

    Full Text Available La post-modernità ci ha messo di fronte ad una metamorfosi di tutti i legami relazionali tra noi e l'ambiente, i codici morali, l'altro da noi ed il mondo circostante. Credo che oggi tra le varie emergenze quotidiane, si sviluppi sempre più quello che è la dipendenza affettiva, soprattutto nelle relazioni. Nelle culture tradizionali e semi-tradizionali si ha una chiara concezione dell'essere dentro o fuori da una cosa. Pensiamo per esempio al confine dell'incesto. Nelle culture tradizionali è chiarissimo dove finiscono le famiglie e dove inizia il modo esterno ai legami di sangue chiamato appunto degli affini. Questo discorso è invece molto più caotico nella post-modernità, dove troviamo un'aggressione a qualsiasi tipo di confine, limite e legame familiare.

  2. Anatomia foliar de Alpinia zerumbet (Pers. Burtt & Smith (Zingiberaceae Leaf anatomy of Alpinia zerumbet (Pers. Burtt & Smith (Zingiberaceae

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    Elaine Santiago Brilhante de Albuquerque

    2004-03-01

    Full Text Available Foi realizado o estudo da anatomia foliar de Alpinia zerumbet (Pers. Burtt & Smith, espécie da família Zingiberaceae, coletada no Horto Botânico da Quinta da Boa Vista, São Cristóvão, Rio de Janeiro, RJ. A espécie é vulgarmente conhecida como colônia, destacando-se pela beleza de suas inflorescências e pelo valor medicinal que lhe é atribuído. O presente estudo tem como objetivo fornecer dados que possam contribuir para a compreensão das características morfológicas da espécie e da taxonomia da família. Anatomicamente a folha apresenta organização dorsiventral do mesofilo, caráter não peculiar à maioria das monocotiledôneas, e pela ocorrência de células oleíferas dispersas no mesofilo e na epiderme da face abaxial. A folha é anfiestomática e apresenta hipoderme em ambas as faces.It was accomplished a study of the foliar anatomy of Alpinia zerumbet (Pers. Burtt & Smith, Zingiberaceae family collected at Horto Botânico of Quinta da Boa Vista, São Cristóvão, Rio de Janeiro, RJ. This species is vulgarly known as "colônia" and is distinguished by its beautiful inflorescence and medicinal value. The main objective of this research is to contribute to the understanding of the morphological characteristics of this species as well its family taxonomy. Anatomically, the leaf presents a dorsiventral organization of the mesophyll, disaccording with most monocotyledonous. Another remarkable aspect is the presence of scattered oil cells throughout the mesophyll and abaxial surface of the leaf. The leaf is amphistomatic and presents hypodermis on both sides.

  3. Estudio del Helicobacter pylori en el Perú

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    Alberto Ramírez Ramos

    2002-10-01

    Full Text Available El presente es el resultado del trabajo que diversos investigadores realizaron sobre la infección del H. pylori en el Perú. Epidemiología: notamos que la infección se adquiere a edades tempranas de la vida, siendo probablemente la vía oral-fecal y por el agua la forma de transmisión más importante. La prevalencia de la infección por H. pylori en los niveles socioeconómicos bajos es la misma en la costa, sierra y selva, manteniéndose estacionaria, a diferencia de los niveles medio y alto donde está disminuyendo (fenómeno asociado a la disminución de úlcera péptica y adenocarcinoma de estómago No existe evidencia que permita afirmar que ciertas razas tienen mayor predisposición para adquirir la infección, pero se ha notificado que en la población de altura es más frecuente la prevalencia de gastritis crónica atrófica que en la que habita a nivel del mar. Microbiología, biología molecular y patología: las cepas del H. pylori predominantes en el Perú son similares a las de España y Europa, pero muy diferentes a las encontradas en China y Japón. La gastritis crónica superficial, gastritis crónica profunda y gastritis crónica atrófica son diferentes estadios evolutivos de la lesión inflamatoria producida por la bacteria en el estómago. Diagnóstico: la biopsia de estómago utilizando coloración con plata es el patrón de oro. La combinación de dos métodos también puede ser útil. Tratamiento: los esquemas triples producen erradicación mayor al 80% los esquemas dobles y la monoterapia son insuficientes: la tasa de recaída postratamiento es alta y la mayoría por una cepa diferente.

  4. Per una didattica della musica del Novecento: un percorso possibile

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    Graziella Seminara

    2013-12-01

    Full Text Available Questo percorso didattico è concepito come ‘guida’ all’ascolto e all’analisi della sezione introduttiva e del primo quadro (Les augures printaniers. Danses des adolescentes del Sacre du printemps di Igor Stravinskij: l’opera stravinskiana, annoverata tra le grandi partiture del Novecento, presenta infatti caratteristiche sonore immediatamente percepibili, che consentono anche all’ascoltatore non esperto di costruire con agio una propria ‘mappa mentale’ della composizione.Il percorso si sviluppa come riflessione a vasto raggio, articolata in una serie di suggerimenti che potranno di volta in volta essere declinati in approcci didattici differenziati, calibrati sugli stadi d’età e di competenza dei discenti; al di là delle specifiche considerazioni sull’Introduction del Sacre e sugli Augures printaniers, con questo percorso si intende altresì avanzare un’ipotesi di lavoro: la pratica dell’analisi anche di poche pagine di una partitura come occasione per sviluppare un discorso di più ampia portata sugli elementi costitutivi del linguaggio musicale e sui procedimenti del comporre.Dopo l’individuazione dei parametri principali della scrittura stravinskiana – ritmo, timbro, tessitura sonora – si ricostruiscono le ragioni storiche e culturali del radicamento della partitura del Sacre nelle tradizioni folkloriche dell’Europa orientale (russa bielorussa lituana e si approfondiscono quindi taluni fondamentali stilemi del comporre di Stravinskij: dal ricorso all’ossessiva ripetitività dell’ostinato alla costruzione di percorsi formali di tipo paratattico, fondati sulla frammentazione e la discontinuità, sino al conseguimento di una nuova organizzazione del tempo musicale, sottratta alla direzionalità propria della musica di tradizione classico-romantica. Il percorso si chiude con la proposta di ulteriori possibili approfondimenti, che vanno dalla considerazione del ruolo determinante della scala ottatonica per la

  5. Italiano per Cinesi – Didael. Corso di lingua italiana online.

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    Franca Bosc

    2009-12-01

    Full Text Available Normal 0 14 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabella normale"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} Per gli apprendenti sinofoni la lingua italiana, con la sua complessità e fragilità morfologica, rappresenta  un ostacolo notevole. Il corso  pone attenzione alla lontananza tipologica delle due lingue con schede grammaticali in cinese e, soprattutto, i livelli A1 e A2 hanno una progressione molto controllata per fissare le basi della lingua italiana. Sono disponibili un Glossario, tre diversi tipi di dizionario (il dizionario automatico, il dizionario, visuale e il dizionario fraseologico e approfondimenti culturali. Si tratta di un corso completo che consente di sviluppare le competenze previste  dal Quadro Comune Europeo; il modello formativo è flessible e prevede varie opzioni di erogazione.  Normal 0 14 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabella normale"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} For Chinese speakers Italian, in all its complexity and morphological fragility, represents a great obstacle.  This course takes into careful account the distance between the two language types, with grammar fact cards in Chinese and, above all, progression at levels A1 and A2 which is very carefully controlled in order to establish the bases of the Italian language.  A Glossary, three different types of dictionary (an automatic dictionary, a visual dictionary and a dictionary of phrases

  6. Viaggiatori per “diporto” nella Napoli di antico regime

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    Paola Avallone

    2010-10-01

    Full Text Available Per il periodo preunitario siamo ancora lontani dall’idea di turismo nell’accezione attuale e ancor di più non si può parlare di turismo di massa. Operatori turistici come Thomas Cook arriveranno in Italia solo nella seconda metà dell’800 quando ormai è in declino il Grand Tour. Diffusosi a partire dal XVII, il Grand Tour era inteso come quel lungo viaggio nell'Europa continentale effettuato dai ricchi giovani dell'aristocrazia britannica e destinato a perfezionare la loro educazione con partenza ed arrivo in una medesima città. Questo viaggio poteva durare dai pochi mesi fino a 8 anni. Le destinazioni principali erano la Francia, l'Olanda, la Germania, ma aveva come obiettivo privilegiato l'Italia e Roma, e di norma includeva le tappe di Venezia, Firenze, Bologna, Pisa e Napoli. Durante il Tour, i giovani imparavano a conoscere la politica, la cultura, l'arte e le antichità dei paesi europei. Passavano il loro tempo facendo giri turistici, studiando e facendo acquisti. L'Italia con la sua eredità della Roma antica, con i suoi monumenti, divenne uno dei posti più popolari da visitare. Oltre alla conoscenza del mondo antico gli Inglesi vennero così a contatto con le opere di Palladio e con il Neoclassicismo. Napoli, soprattutto quando divenne Capitale con l’arrivo della dinastia borbonica sul trono, era tra le mete finali dei grandtouristi. Oltre alle bellezze naturali e al tepore del clima mite durante tutto l’anno, l’élite culturale europea era interessata alla storia e all’arte del sud della penisola. L’Italia meridionale raccoglieva l’eredità della Magna Grecia e le suggestioni dell’Impero Romano, che si potevano ammirare sia a est che a ovest della città. Ma c’erano anche il Vesuvio, la Solfatara, i Campi Flegrei, luoghi legati ad eventi impressionanti e scientificamente ancora non provati, e che sollecitavano la curiosità di naturalisti, studiosi di flora e fauna ma anche di pittori e artisti in generale

  7. Per-Sample Multiple Kernel Approach for Visual Concept Learning

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    Tian Yonghong

    2010-01-01

    Full Text Available Abstract Learning visual concepts from images is an important yet challenging problem in computer vision and multimedia research areas. Multiple kernel learning (MKL methods have shown great advantages in visual concept learning. As a visual concept often exhibits great appearance variance, a canonical MKL approach may not generate satisfactory results when a uniform kernel combination is applied over the input space. In this paper, we propose a per-sample multiple kernel learning (PS-MKL approach to take into account intraclass diversity for improving discrimination. PS-MKL determines sample-wise kernel weights according to kernel functions and training samples. Kernel weights as well as kernel-based classifiers are jointly learned. For efficient learning, PS-MKL employs a sample selection strategy. Extensive experiments are carried out over three benchmarking datasets of different characteristics including Caltech101, WikipediaMM, and Pascal VOC'07. PS-MKL has achieved encouraging performance, comparable to the state of the art, which has outperformed a canonical MKL.

  8. Per-Sample Multiple Kernel Approach for Visual Concept Learning

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    Ling-Yu Duan

    2010-01-01

    Full Text Available Learning visual concepts from images is an important yet challenging problem in computer vision and multimedia research areas. Multiple kernel learning (MKL methods have shown great advantages in visual concept learning. As a visual concept often exhibits great appearance variance, a canonical MKL approach may not generate satisfactory results when a uniform kernel combination is applied over the input space. In this paper, we propose a per-sample multiple kernel learning (PS-MKL approach to take into account intraclass diversity for improving discrimination. PS-MKL determines sample-wise kernel weights according to kernel functions and training samples. Kernel weights as well as kernel-based classifiers are jointly learned. For efficient learning, PS-MKL employs a sample selection strategy. Extensive experiments are carried out over three benchmarking datasets of different characteristics including Caltech101, WikipediaMM, and Pascal VOC'07. PS-MKL has achieved encouraging performance, comparable to the state of the art, which has outperformed a canonical MKL.

  9. Gašper Žitnik and His Books

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    Sonja Svoljšak

    2014-12-01

    Full Text Available Gašper Žitnik (ca. 1535–1585 was a jurist, a doctor of law from the Vienna university, a Count palatine, an Inner-Austrian government councillor and an important political figure in Carniolian and Styrian Counter-Reformation. He was also Bishop Tomaž Hren’s (1560−1630 uncle and had important influence on his upbringing, education and career. Besides being an occasional poet in his youth, he was also a book collector and he liked to inscribe various details about his study, work and personal life into his books. The paper gives an overview of Žitnik’s books, which are kept in the National and University Library, with an emphasis on his hand-written notes and some other peoples’ hand-written notes in his books which are of significance. The findings complement the already known facts about Žitnik’s life and work through this secondary information while also revealing some details about the relation between his books and him as their reader.

  10. Perú, después de las elecciones

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    Luis PÁSARA

    2009-11-01

    Full Text Available RESUMEN: En este artículo se reflexiona sobre la elección presidencial peruana a partir de los resultados electorales de la primera y la segunda vuelta electoral. El autor sostiene que la elección de Alejandro Toledo no supone una recuperación del país y expone las características de los comicios en los que participó la mitad de la población. Asimismo, analiza el perfil del nuevo elector peruano «el cholo» y lo señala como el nuevo protagonista social del Perú; reflexiona respecto a la salida de Fujimori y Montesinos del poder y puntualiza el papel de Estados Unidos en la caída del régimen fujimorista.ABSTRACT: This article analyzes the Peruvian presidential election taking as a point of departure the electoral results of the first and second rounds. The author argues that the election of Alejandro Toledo does not imply a recovery of the country and he presents the characteristics of the electoral contest in which half of the population participated. He also analyzes the profile of the new Peruvian voter, the «cholo», and points to them as new social protagonists in Peru. The author reflects on the exit from power of Fujimori and Montesinos, specifying the role of the United States in the fall of the Fujimori regime.

  11. Per una didattica del melodramma. Idee e percorsi

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    Giorgio Pagannone

    2011-04-01

    Full Text Available Il presente intervento ha lo scopo di mettere a fuoco alcune questioni di fondo sulla didattica del melodramma e di formulare alcune ipotesi metodologiche approfondite nel volume Insegnare il melodramma: saperi essenziali, proposte didattiche, finanziato dall’Università della Valle d’Aosta e destinato ad insegnanti della scuola di base, dalla scuola dell’infanzia alla secondaria superiore. Il libro è suddiviso in due parti: la prima di riflessione teorica e metodologica; la seconda più operativa, e contenente alcuni percorsi didattici divisi per fasce scolastiche. Esso dunque intende fornire a chi opera nella scuola una riflessione articolata e almeno un po’ approfondita sull’opera lirica, e nel contempo degli strumenti di lavoro concreti. Si può constatare infatti che alcune recenti pubblicazioni sulla didattica dell’opera puntano sull’immediata operatività (anche ai livelli più precoci d’istruzione, ma difettano, a nostro avviso, di un’adeguata cornice teorico-metodologico-concettuale: il che si ripercuote anche sul livello e sulla qualità dei percorsi didattici stessi.

  12. Cisticercosis diseminada: reporte de un caso en Perú

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    Julio Maquera-Afaray

    Full Text Available La cisticercosis es una enfermedad desatendida y endémica en el Perú que afecta comúnmente al sistema nervioso central (SNC, causando la neurocisticercosis (NCC. Sin embargo, son pocos los reportes de cisticercosis diseminada (CCD en el mundo. Se reporta el caso de un paciente varón de 82 años, natural del departamento de Junín, que presenta pérdida brusca del nivel de conciencia asociada a convulsiones tónico-clónicas generalizadas. La tomografía axial computarizada y la resonancia magnética nuclear cerebral mostraron múltiples lesiones de aspecto quístico con presencia de escólex en su interior y compatibles con NCC masiva; la resonancia magnética nuclear torácica, abdominal y pélvica permitieron evidenciar la diseminación multiorgánica de cisticercos. Aunque es poca la casuística y experiencia terapéutica en los casos de CCD, el paciente recibió tratamiento antiparasitario con albendazol y corticoides, logrando una evolución clínica favorable y sin complicaciones durante la hospitalización

  13. Strategie robotiche ed informatiche per la fruizione museale

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    Michela Cigola

    2014-04-01

    Full Text Available ITL’articolo intende presentare una ricerca multidisciplinare in corso presso l’Università di Cassino. Il progetto si incentra sull’uso di robot per effettuare una visita ad un museo durante l’orario di chiusura, permettendo al visitatore, connesso al robot attraverso il proprio computer di casa o il proprio tablet o smartphone, di controllare e “guidare” il dispositivo attraverso le sale del museo, inquadrando e guardando le varie opere, ottenendone o una semplice visione oppure una esplorazione ampliata dell’opera che si sta osservando, attraverso un database multimediale appositamente predisposto.ENThe article intends to present a multidisciplinary research underway at the University of Cassino. The project focuses on the use of robots to make a visit to a museum during the hours of closure.  The visitor, connected to the robot through computer or tablet or smartphone, will be able to check and "ride" the device through the Museum obtaining or a simple vision or an extended exploration of the museum through a specially designed multimedia database.

  14. Tre voci per un Lexicon di Giuseppe Pontiggia

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    Daniela Marcheschi

    2014-07-01

    Full Text Available Tre parole-chiave offrono lo spunto per un’immersione nel pensiero e nell’opera di Giuseppe Pontiggia. La prima: parola, riaffermata dallo scrittore in quanto atto civile e ‘corporeo’ mediante il quale l’uomo fa esperienza di se stesso entrando in contatto con i suoi simili e con il circostante, ricongiungendosi insieme alla sua più profonda e antica natura. Viene così restituita allo scrittore/critico la responsabilità di lottare contro l’attuale minaccia dello svuotamento linguistico, nel nome di una costruttiva utopia culturale. La seconda parola, musica, serve a illuminare i romanzi di Pontiggia – in specie La grande sera e L’arte della fuga – attraverso suggestive analogie con la musica classica e il jazz, predilette dallo scrittore. Ossimoro è l’ultima voce di questo Lexicon: figura retorica, ma soprattutto figura conoscitiva che permette allo scrittore di scoprire la propria verità e il proprio linguaggio e al lettore di abbracciare una visione non lineare e problematica del mondo, capace di ampliare le prospettive e rinnovare lo sguardo.

  15. Perú 1985. Rescate de la memoria colectiva

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    María Teresa Quiroz

    2015-01-01

    Full Text Available La revista se centra en el rol que desempeñan los medios en las campañas electorales,se publica la función política de éstos en Escandinavia,(1983La campaña electoral en una transición política en Argentina, (1986Una democracia amenazada en Costa Rica, (1985 Rescate de la memoria colectiva desde el Perú, (1983 Impacto de la crisis económica en Venezuela,(1986 Impresiones del periodismo político en Austria, (1984Propaganda electoral en la prensa de Quito, (1984 Estados Unidos. Estrategia de Comunicación:la elección presidencial. En la sección NUEVAS TECNOLOGÍAS se habla de los flujos de datos transfrontera (FDT y cuestiones afines. En DOCUMENTOS se publica sobre Innovación tecnológica en Educación, el Informe de proyectos 1985

  16. Applied Physics Education: PER focused on Physics-Intensive Careers

    Science.gov (United States)

    Zwickl, Benjamin

    2017-01-01

    Physics education research is moving beyond classroom learning to study the application of physics education within STEM jobs and PhD-level research. Workforce-related PER is vital to supporting physics departments as they educate students for a diverse range of careers. Results from an on-going study involving interviews with entry-level employees, academic researchers, and supervisors in STEM jobs describe the ways that mathematics, physics, and communication are needed for workplace success. Math and physics are often used for solving ill-structured problems that involve data analysis, computational modeling, or hands-on work. Communication and collaboration are utilized in leadership, sales, and as way to transfer information capital throughout the organization through documentation, emails, memos, and face-to-face discussions. While managers and advisors think a physics degree typically establishes technical competency, communication skills are vetted through interviews and developed on the job. Significant learning continues after graduation, showing the importance of cultivating self-directed learning habits and the critical role of employers as educators of specialized technical abilities through on-the-job training. Supported by NSF DGE-1432578.

  17. Primer reporte de alcaptonuria en el Perú

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    Daniel Guillén-Mendoza

    Full Text Available La alcaptonuria es un error innato del metabolismo causado por la deficiencia de la homogentisiato 1,2 dioxidasa (HGD, produciéndose un exceso de ácido homogentísico (HGA. Se presenta el caso de una mujer de 57 años quien, desde que nació, su orina se tornaba de color negro; desde hacía 9 años presentaba una pigmentación verdosa en los lechos ungueales que no mejoró con tratamientos antifúngicos y en los últimos 9 meses presentó artrosis de articulaciones grandes que fue empeorando, forzándola a usar una silla de ruedas por el intenso dolor generado por la artrosis de caderas y columna lumbar. Por la descripción de los síntomas se le solicitó la medición de HGA en orina lo que confirmó el diagnóstico de alcaptonuria. Se sugirieron analgésicos, dieta sin productos que contuvieran tirosina y fue referida para cirugía de reemplazo de cadera. Se trata del primer reporte de caso de alcaptonuria en el Perú.

  18. El sistema nacional de salud en el Perú

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    Francisco Sánchez-Moreno

    Full Text Available Un grupo de profesionales en el Perú, conocedores de sistemas nacionales de salud, conformado desde 1975, comenzó un proceso que llevó al país a ser el primero en América del Sur en iniciar la organización moderna de este sistema. El avance pionero que significó la creación del Sistema Nacional de Servicios de Salud en 1978 ocurrió antes de las reformas de los sistemas de salud en Chile (1980, Brasil (1990, Colombia (1993 y Ecuador (2008. El alentador inicio tuvo vaivenes reformistas permanentes desde entonces, con evolución negativa por falta de una política de Estado. Las características actuales del sistema peruano son el desempeño ineficiente y la discontinuidad, sin evaluación alguna, lo que determina un gran atraso con relación a los sistemas de salud de América. En el siglo XXI se han desaprovechado importantes esfuerzos técnicos para modernizar el sistema y sus funciones. El futuro es preocupante y el papel de las nuevas generaciones será decisivo.

  19. Microtubular Fuel Cell with Ultrahigh Power Output per Footprint.

    Science.gov (United States)

    Miao, Shiding; He, Shulian; Liang, Mengnan; Lin, Gungun; Cai, Bin; Schmidt, Oliver G

    2017-09-01

    A novel realization of microtubular direct methanol fuel cells (µDMFC) with ultrahigh power output is reported by using "rolled-up" nanotechnology. The microtube (Pt-RuO2 -RUMT) is prepared by rolling up Ru2 O layers coated with magnetron-sputtered Pt nanoparticles (cat-NPs). The µDMFC is fabricated by embedding the tube in a fluidic cell. The footprint of per tube is as small as 1.5 × 10-4 cm2 . A power density of ≈257 mW cm-2 is obtained, which is three orders of magnitude higher than the present microsized DFMCs. Atomic layer deposition technique is applied to alleviate the methanol crossover as well as improve stability of the tube, sustaining electrolyte flow for days. A laminar flow driven mechanism is proposed, and the kinetics of the fuel oxidation depends on a linear-diffusion-controlled process. The electrocatalytic performance on anode and cathode is studied by scanning both sides of the tube wall as an ex situ working electrode, respectively. This prototype µDFMC is extremely interesting for integration with micro- and nanoelectronics systems. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  20. An examination of periodontal treatment and per member per month (PMPM medical costs in an insured population

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    Papapanou Panos

    2006-08-01

    Full Text Available Abstract Background Chronic medical conditions have been associated with periodontal disease. This study examined if periodontal treatment can contribute to changes in overall risk and medical expenditures for three chronic conditions [Diabetes Mellitus (DM, Coronary Artery Disease (CAD, and Cerebrovascular Disease (CVD]. Methods 116,306 enrollees participating in a preferred provider organization (PPO insurance plan with continuous dental and medical coverage between January 1, 2001 and December 30, 2002, exhibiting one of three chronic conditions (DM, CAD, or CVD were examined. This study was a population-based retrospective cohort study. Aggregate costs for medical services were used as a proxy for overall disease burden. The cost for medical care was measured in Per Member Per Month (PMPM dollars by aggregating all medical expenditures by diagnoses that corresponded to the International Classification of Diseases, 9th Edition, (ICD-9 codebook. To control for differences in the overall disease burden of each group, a previously calculated retrospective risk score utilizing Symmetry Health Data Systems, Inc. Episode Risk Groups™ (ERGs were utilized for DM, CAD or CVD diagnosis groups within distinct dental services groups including; periodontal treatment (periodontitis or gingivitis, dental maintenance services (DMS, other dental services, or to a no dental services group. The differences between group means were tested for statistical significance using log-transformed values of the individual total paid amounts. Results The DM, CAD and CVD condition groups who received periodontitis treatment incurred significantly higher PMPM medical costs than enrollees who received gingivitis treatment, DMS, other dental services, or no dental services (p Conclusion This two-year retrospective examination of a large insurance company database revealed a possible association between periodontal treatment and PMPM medical costs. The findings suggest that

  1. Linee guida per la gestione della Volpe in Italia

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    Silvano Toso

    2003-10-01

    Full Text Available La plasticità ecologica della Volpe (Vulpes vulpes fa di questa specie il Carnivoro più diffuso e più adattabile al mondo. Proprio per la sua diffusione la Volpe è oggetto di un intenso prelievo sia venatorio, sia finalizzato a contenerne l'impatto predatorio ed allo sfruttamento commerciale della pelliccia. In Italia esiste una forte pressione dei cacciatori perché si realizzino programmi di controllo delle popolazioni di questo predatore, al fine di ridurne l'impatto sulle specie d'interesse cinegetico. Gli effetti del contenimento della Volpe sulla dinamica delle popolazioni di specie preda sono stati oggetto di numerosi studi, ma i risultati di tali ricerche non sono univoci; se in alcuni casi si è infatti verificato, in seguito a decrementi delle popolazioni di Volpe, un incremento di consistenza e successo riproduttivo delle specie preda, in altri casi non si è registrato alcun significativo effetto demografico. Ancora meno chiaro è quale sia la soglia di contrazione delle popolazioni di Volpe necessaria per ottenere un effetto significativo sulle popolazioni delle specie preda, considerato che questo Carnivoro ha un potenziale riproduttivo elevato ed un'organizzazione sociale che determina la rapida rioccupazione dei territori lasciati liberi. La legislazione italiana in materia di controllo è, rispetto ad altri paesi europei ed extraeuropei, particolarmente rigida: la legge n. 157/92 identifica infatti un obiettivo generale di mantenimento delle popolazioni dei predatori a livelli adeguati ad assicurare una funzione regolatrice delle biocenosi. La stessa norma impone inoltre che ogni intervento di abbattimento di predatori finalizzato al contenimento dei danni da essi arrecati sia autorizzato dalla Regione o dalla Provincia competente, sulla base di un parere tecnico dell'INFS che è chiamato a verificare l'inapplicabilità di metodi incruenti di prevenzione dei danni, la selettività delle tecniche di abbattimento e la

  2. Final Report of the HyPER Harvester Project

    Energy Technology Data Exchange (ETDEWEB)

    Prasad, Nadipuram R [New Mexico State Univ., Las Cruces, NM (United States); Ranade, Satishkuma J [New Mexico State Univ., Las Cruces, NM (United States)

    2015-11-30

    The HyPER Harvester Project resulted in the first full­scale design, fabrication and testing of two vertical­axis harvester prototypes at the Elephant Butte Irrigation District Drop 8 Station in Southern New Mexico. The design, followed by fabrication, and deployment clearly demonstrated the feasibility to manufacture and deploy harvester prototypes at low cost. While several issues common to irrigation canal systems have to be overcome, the electromechanical performance of the integrated turbine­generator system demonstrated proof­of­concept. Proof­of­concept includes 1) feasibility for using additive manufacturing techniques to fabricate Carbon­composite turbine­generator components at low cost, 2) ease of transportation and deployment, and 3) the harvester performance. The benefits of modularity were demonstrated in terms of rapid deployment at the Drop 8 Station. Scalability and adaptability were proven in terms of the custom­fitting characteristics that enabled rapid deployment. While keeping the same shape and form, the harvester can be easily adapted to any drop environment. Self­supporting ability makes the harvester design minimally intrusive on existing structures. There are two technical challenges ahead that have to be addressed. Irregular flow patterns in canal flow induce vertical oscillations due to pressure change across the impeller. Despite the nosecone in conventional Kaplan turbine design that ordinarily dampens oscillations, an effective coupling design is required to eliminate the hydrodynamic effect on the generating system. In arid areas where tumbleweed is present, a robust design to prevent trash entering the drop is required. The compact shape and form have an aesthetic appearance and appear to illustrate an environmentally friendly attribute. The systems­engineered design enables rapid manufacturing and assembly of desired size units that can be deployed at sites along U.S. waterways as small hydropower plants. There is

  3. Modelling Per Capita Water Demand Change to Support System Planning

    Science.gov (United States)

    Garcia, M. E.; Islam, S.

    2016-12-01

    Water utilities have a number of levers to influence customer water usage. These include levers to proactively slow demand growth over time such as building and landscape codes as well as levers to decrease demands quickly in response to water stress including price increases, education campaigns, water restrictions, and incentive programs. Even actions aimed at short term reductions can result in long term water usage declines when substantial changes are made in water efficiency, as in incentives for fixture replacement or turf removal, or usage patterns such as permanent lawn watering restrictions. Demand change is therefore linked to hydrological conditions and to the effects of past management decisions - both typically included in water supply planning models. Yet, demand is typically incorporated exogenously using scenarios or endogenously using only price, though utilities also use rules and incentives issued in response to water stress and codes specifying standards for new construction to influence water usage. Explicitly including these policy levers in planning models enables concurrent testing of infrastructure and policy strategies and illuminates interactions between the two. The City of Las Vegas is used as a case study to develop and demonstrate this modeling approach. First, a statistical analysis of system data was employed to rule out alternate hypotheses of per capita demand decrease such as changes in population density and economic structure. Next, four demand sub-models were developed including one baseline model in which demand is a function of only price. The sub-models were then calibrated and tested using monthly data from 1997 to 2012. Finally, the best performing sub-model was integrated with a full supply and demand model. The results highlight the importance of both modeling water demand dynamics endogenously and taking a broader view of the variables influencing demand change.

  4. PER LA DIDATTICA DI UNA SCRITTURA ESPOSITIVA: LA RELAZIONE

    Directory of Open Access Journals (Sweden)

    Massimo Prada

    2014-07-01

    Full Text Available In questo articolo si descrive – con una specifica attenzione alle ricadute didattiche – la relazione in quanto tipo testuale, discorsivo e linguistico e si forniscono indicazioni operative utili alla stesura di relazioni corrette, adeguate ed efficaci. Il testo delinea così un possibile percorso formativo per migliorare – in un ambito ben determinato dello “scrivibile” – le competenze scrittura degli studenti della scuola secondaria di secondo grado. La prima parte del documento sottolinea le caratteristiche generali della relazione in quanto classe di testi e individua i tratti distintivi di sue forme particolarmente utili e praticabili in ambito scolastico: il verbale, il rapporto e la relazione di ricerca, il saggio breve e la recensione. La seconda parte, invece, si focalizza sul processo cognitivo e operativo che rende possibile la scrittura di relazioni funzionali, individuando un possibile itinerario compositivo distinto in fasi: quella della lettura dei testi fonte e della loro manipolazione; quella della vera e propria stesura progettuale; quella della revisione. Teaching expository writing: a report  Massimo Prada  With a specific focus on educational implications, this article describes the report as a textual, discursive and linguistic type and provides useful guidance useful for writing correct, appropriate and effective reports. In the well-defined area of “writablility”, the text outlines a possible way to improve teaching writing skills to secondary school students. The first part of the paper outlines the general characteristics of the report as a class of text and identifies the distinctive features of its form that are particularly useful and practicable in schools: memorandums, reports and research reports, short essays and reviews. The second part focuses on the cognitive and operational processes that makes it possible to write functional reports, identifying a possible distinct compositional stages

  5. Mappe interattive per la promozione turistico-culturale

    Directory of Open Access Journals (Sweden)

    Antonella Lerario

    2014-04-01

    Full Text Available IT L’ingente patrimonio culturale italiano affronta oggi le conseguenze di strategie di promozione obsolete e di un insufficiente uso delle ICT, ma soprattutto di una errata percezione del suo significato nella vita delle comunità. I caratteri stessi del c.d. ‘Museo Italia’(un patrimonio di beni ‘minori’ fortemente diffuso sul territorio accanto ai più noti beni monumentali richiedono notevoli cambiamenti nei progetti di promozione sia nel senso di un trasferimento alla scala locale dei processi, sia nella identificazione e modellazione dell’utenza potenziale. Sul piano operativo ciò implica il ricorso a strumenti tecnologici semplici e fortemente interattivi, incentrati sui bisogni di informazione dell’utente medio, potenziale visitatore. L’articolo illustra il sistema sviluppato da ITC-CNR (Bari nell’ambito del progetto 'Smart Cities’ per la città di Siracusa, basato su procedure e software che semplificano la pubblicazione di informazione georeferenziata.ENThe huge cultural heritage of Italy is facing the consequences of obsolete promotion strategies and of an under exploitation of ICTs, but above all of a wrong perception of its significance in communities’ life. The inherent characters of the so-called ‘Museum Italy’ (a wealth of ‘minor’ assets, diffused on the territory, together with the more famous monuments demand substantial modifications in promotion projects, in terms of both a downscaling of processes and of identification and modelling of potential users’ behaviour. On the operational level, this requires the elaboration of simple and highly interactive technological tools, focused on the ‘average’ user’s  information needs, or potential visitor. The article presents the system developed by ITC-CNR (Bari within the ‘Smart Cities’ project for the city of Siracusa (Sicily, based on software and procedures aimed at simplifying the publication of georeferenced information.

  6. Mida teie oma tervise heaks teete? / Ly Jagor, Ülle Mihhailova, Ene Pill, Katrin Käbin...[jt.

    Index Scriptorium Estoniae

    2008-01-01

    Küsimusele vastavad Pärnu Õppenõustamiskeskuse psühholoog Ly Jagor, Maasika lasteaia juhataja asetäitja Ülle Mihhailova, Tallinna Perekeskuse ja Tähetorni lastekeskuse psühholoog Ene Pill, Tallinna Nõmme Noortemaja väikelaste ringijuht Katrin Käbin, Tääksi Põhikooli õpetaja Silva Kolk

  7. Tervise edendamine töökohal - müüt või tulevikutrend? / Taimi Elenurm

    Index Scriptorium Estoniae

    Elenurm, Taimi

    2008-01-01

    Tervist edendavate töökohtade liikumisest maailmas, Eesti liitumisest Euroopa tervist edendavate töökohtade võrgustikuga (European Network for Workplace Health Promotion, ENWHP). Vt. samas: Tervis on sotsiaalsest kooslusest sõltuv; Millistes valdkondades saab töötaja tervist edendada?; Näiteid heast terviseedenduse praktikast Eesti ettevõtetes

  8. Per una nuova traduzione di Winnie Ille Pu: da libro per l’infanzia a “classico latino”

    Directory of Open Access Journals (Sweden)

    Elena Scuotto

    2016-06-01

    Full Text Available Il seguente contributo prende in considerazione la traduzione latina del classico della letteratura per l’infanzia Winnie-the-Pooh di A.A. Milne, fatta dall’ungherese Lénárd Sándor come Winnie Ille Pu. L’attenzione si soffermerà nello specifico sulla nuova edizione francese del romanzo a cura di Florient Azoulay che traduce dal latino e non dall’inglese, considerando quindi la versione di Lénárd come un classico autonomo. The following contribution aims at analysing the Latin translation of the children literature classic Winnie-the-Pooh by A.A. Milne, made by Hungarian Lénárd Sándor as Winnie Ille Pu. In particular, I will focus my attention on the new French edition of the novel edited by Florient Azouly, who has translated it from Latin and not from English, considering Lénárd’s version as an autonomous classic itself.

  9. Energy analysis in Cynodon dactylon (L.) Pers hay production; Analise energetica na producao de feno de Cynodon dactylon (L.) Pers

    Energy Technology Data Exchange (ETDEWEB)

    Campos, Alessandro T. [UNIOESTE, Marechal Candido Rondon, PR (Brazil). Centro de Ciencias Agrarias]. E-mail: atcampos3@yahoo.com.br; Saglietti, Jose R.C.; Bueno, Osmar C. [UNESP, Botucatu, SP (Brazil). Facudade de Ciencias Agronomicas; Campos, Aloisio T. [EMBRAPA - Gado de leite, Juiz de Fora, MG (Brazil)

    2005-05-15

    The aim of this work was to characterize the energy consumption related to the introduction, development, hay processing and storage of Cynodon dactylon (L.) Pers allied to the analysis of the energetic efficiency. The data used in this project were collected from EMBRAPA Gado de Leite, localized in Coronel Pacheco, Minas Gerais, Brazil. The data were obtained from a seven year period of an intensive system of milk production. Energetic coefficients were used to generate the survey and several matrix components obtained from pertinent literature. The direct energy, related to the inputs, showed more efficient participation on the energetic matrix than the indirect energy and the percentages were 94.64 and 5.31, respectively. Farm tractor was the main indirect energy consumer, which is responsible for turning on all the equipment, followed by the irrigation system. The energetic efficiency presented by the whole system was 4.2, being considered positive and demonstrating that the agriculture ecosystem is sustainable. Most of the direct energy employed in this system was oil derived on fuel form. There was, however, a great consume of another oil derived energy such as fertilizer, but mainly on the nitrogen form (28.89% of the total employed energy). (author)

  10. Buone pratiche didattiche per prevenire falsi positivi nelle diagnosi di discalculia: il progetto “PerContare”

    Directory of Open Access Journals (Sweden)

    Anna Ethelwyn Baccaglini-Frank

    2015-12-01

    Full Text Available Per contrastare il fenomeno dei falsi positivi nelle diagnosi di discalculia in Italia, tra i bambini di terza elementare, è stato realizzato un progetto triennale (2011-2014, fondato sulla collaborazione tra ricercatori in psicologia e didattica della matematica. Durante il progetto sono state elaborate e sperimentate pratiche didattiche atte a prevenire e affrontare difficoltà di apprendimento nell’ambito dell’aritmetica all’inizio della scuola primaria. In questo articolo vengono discusse le basi su cui si fonda il progetto, in particolare le basi scientifiche dei materiali didattici elaborati, di cui verranno proposti alcuni esempi. Tali esempi sono prototipici rispetto all’attenzione verso un approccio cinestetico-tattile e visuo-spaziale alla matematica. Le pratiche didattiche proposte hanno portato gli studenti ad interiorizzare relazioni parte-tutto e a pensare alla moltiplicazione in maniera strutturale, attraverso appositi diagrammi. Saranno forniti dati quantitativi e discussi brevemente dati qualitativi che confermano l’efficacia delle pratiche didattiche proposte.

  11. Scaling vectors of attoJoule per bit modulators

    Science.gov (United States)

    Sorger, Volker J.; Amin, Rubab; Khurgin, Jacob B.; Ma, Zhizhen; Dalir, Hamed; Khan, Sikandar

    2018-01-01

    Electro-optic modulation performs the conversion between the electrical and optical domain with applications in data communication for optical interconnects, but also for novel optical computing algorithms such as providing nonlinearity at the output stage of optical perceptrons in neuromorphic analog optical computing. While resembling an optical transistor, the weak light–matter-interaction makes modulators 105 times larger compared to their electronic counterparts. Since the clock frequency for photonics on-chip has a power-overhead sweet-spot around tens of GHz, ultrafast modulation may only be required in long-distance communication, not for short on-chip links. Hence, the search is open for power-efficient on-chip modulators beyond the solutions offered by foundries to date. Here, we show scaling vectors towards atto-Joule per bit efficient modulators on-chip as well as some experimental demonstrations of novel plasmonic modulators with sub-fJ/bit efficiencies. Our parametric study of placing different actively modulated materials into plasmonic versus photonic optical modes shows that 2D materials overcompensate their miniscule modal overlap by their unity-high index change. Furthermore, we reveal that the metal used in plasmonic-based modulators not only serves as an electrical contact, but also enables low electrical series resistances leading to near-ideal capacitors. We then discuss the first experimental demonstration of a photon-plasmon-hybrid graphene-based electro-absorption modulator on silicon. The device shows a sub-1 V steep switching enabled by near-ideal electrostatics delivering a high 0.05 dB V‑1 μm‑1 performance requiring only 110 aJ/bit. Improving on this demonstration, we discuss a plasmonic slot-based graphene modulator design, where the polarization of the plasmonic mode aligns with graphene’s in-plane dimension; where a push–pull dual-gating scheme enables 2 dB V‑1 μm‑1 efficient modulation allowing the device to be just

  12. Proposta per una classificazione dei dati sperimentali in sismologia

    Directory of Open Access Journals (Sweden)

    G. PANNOCCHIA

    1974-06-01

    Full Text Available T Centri Internazionali clic elaborano i d a t i di t u t ti gli Osservatori sismologici allo scopo di determinare i p a r a m e t r i fondamentali dogli eventi sismici, forniscono generalmente questi p a r a m e t r i con i corrispondenti errori calcolati. Nel presente lavoro, dopo alcuni rilievi di c a r a t t e r e generale, è s t a ta messa in evidenza l ' o p p o r t u n i t à di dare un aspetto significativo alle conseguenze che hanno gli inevitabili errori dovuti al rilevamento sperimentale dei dati di osservazione. In particolare è s t a t a r i c h i a m a t a l'attenzione: I sul f a t t o elio l ' i n t e r p r e t a z i o n e d i r e t t a di un sismogramma non fornisce una distanza A sufficientemente precisa; I I sull'importanza che hanno gli errori + STI corrispondenti ai tempi origine e le conseguenze che ne derivano, specialmente per valori elevali di | SH |; I I I sul significato e l ' i m p o r t a n z a che hanno gli errori corrispondenti alle coordinate epicentrali ed alla p r o f o n d i t à ipocentrale; IV sul significato e l ' i m p o r t a n z a clic hanno i residui ( 0 — ( ' = (tempi osservati — tempi calcolati relativi ai iP di ciascuna stazione (lP = tempi di t r a g i t t o delle onde longitudinali. Tenendo presenti questi punti viene proposta una classificazione di c a r a t t e r e analitico e di uso pratico (Fig. 2 in 4 classi

  13. Births per U.S. woman? Depends on race, ethnicity.

    Science.gov (United States)

    Haub, C

    1993-09-01

    A profile of mothers giving birth is presented for the US for 1990 based on race and ethnicity. Some of the complexities involved in compiling racial and ethnic data are described. The total fertility rate was 2.1 for all American women, 1.1 for Japanese Americans, and 3.2 for Hawaiians and Mexican Americans. The number of births per woman was derived from state birth registration data, which culls data from preadmission hospital forms filled out by the mother. The denominator of the birth rate comes from the number of women in the specified age group as determined by the Census. The problem arises from self-reports themselves. Consistency between recording systems has been improved since 1989 when births were counted based on mother's race and ethnicity. There have been greater percentages of interracial births for which race of both parents were known, and the trend was for 15% of the births for race of the father not to be reported in 1990. The data revealed that in 1990, Mexican Americans and Hawaiians had the highest birth rate of 3.2, which was comparable to developing countries in Latin America. The other Hispanic group was another high fertility group for a developed country. Low fertility was found among Japanese, Chinese, and Cuban Americans. The actual numbers revealed that non-Hispanic whites constitute 2.6 million out of 4.2 million children born in the US. 595,100 were Hispanics, 661,700 were non-Hispanic blacks, 142,000 were Asian or Pacific Islander, and less than 40,000 were American Indian. Teenage pregnancy was considerable among the ethnic populations: nearly 25% of African Americans, and about 20% of American Indians, Puerto Ricans, Hawaiians, and Mexican Americans having births to women under 20 years of age. The birthing patterns were different among minority groups. Hispanic women had early childbearing and continued childbearing throughout the reproductive years. Black and American Indian women tended to complete childbearing early. Asian

  14. Per una educazione linguistica trasversale: la sfida della competenza multilingue.

    Directory of Open Access Journals (Sweden)

    Luciano Mariani

    2009-12-01

    Full Text Available Normal 0 14 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabella normale"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} Insegnare e apprendere più lingue in un curricolo consente di sviluppare una competenza comunicativa plurilingue e pluriculturale: una multicompetenza che, sulla base dell’interdipendenza tra apprendimenti linguistici (L1, L2, Ln …, implica un trasferimento di conoscenze, abilità e convinzioni/atteggiamenti tra le lingue. L’integrazione tra apprendimenti presuppone però un’integrazione tra insegnamenti, ossia una cultura della scuola e della classe basata sulla collaborazione – una condivisione e negoziazione di teorie, metodologie e prassi che rinnovi la sfida di un’educazione linguistica trasversale.  Normal 0 14 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabella normale"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} Learning and teaching several languages in a curriculum allows the development of a plurilingual and pluricultural communicative competence: a multicompetence based on the interdependence of language learning (L1, L2, Ln …, which implies a transfer of knowledge, abilities and beliefs/attitudes between languages. Integrating different language learning experiences, however, involves integrating teaching experiences, i.e. a school and class culture based on collaboration – sharing and negotiating theories, methodologies and practices as a way to reaffirm a cross

  15. Proposta per la implantació d'un sistema de gestió de manteniment asistit per ordinador (GMAO) a una empresa farmacèutica

    OpenAIRE

    Visa Catalàn, Sergi

    2013-01-01

    Es presenta el projecte per implantar un software de Gestió de Manteniment Assistit per Ordinador (GMAO) en un edifici d’oficines d’una empresa farmacèutica. A l’edifici es fan tres tipus de manteniment: correctiu, conductiu i preventiu. Com a requeriment inicial, el GMAO, ha de donar entrada a equips electrònics com a terminals per reduir feina de transmissió de dades, per eliminar el paper com a canal de comunicació i per eliminar els arxius físics un cop implantat del GMAO. Estudis que ...

  16. El testimonio inca de la conquista del Perú

    Directory of Open Access Journals (Sweden)

    1978-01-01

    Full Text Available Ce témoignage de Cayo Inga est un document important qui retrace les succès des premières années de la pénétration espagnole au Pérou, de la côte de Tumbes à la ville de Cuzco. Sa valeur exceptionnelle tient à la qualité de l'informateur-membre du lignage inca et au fait qu'il ait été un témoin personnel des faits qu'il décrit. Par ce manuscrit, nous savons que Waskar Inga connut opportunément l'invasion étrangère à partir de la côte de Tumbes et que les Espagnols exigèrent une rançon au captif Atao Wallpa lui promettant de relâcher après. Nous sommes également renseignés sur le fameux pillage du temple de Pachacamac, sur la dramatique demande d'Atao Wallpa suppliant d'être exilé en Espagne et sur l'emprisonnement de Mango Inga Yupangui. Enfin, ce manuscrit éclaircit quelques faits quant aux sièges de la ville de Cuzco et de celle de Lima en 1536. El testimonio de Cayo Inga, es un documento excepcional para rehacer los sucesos de los primeros años de la penetración española en el Perú, de la costa tumbesina a la ciudad del Cuzco primero por la calidad del informante miembro del linaje Inca y segundo por su presencialidad en el lugar de los hechos. Este manuscrito, aclara que Waskar Inga conoció oportunamente la invasión de la costa tumbesina por los extranjeros y refiere que los españoles exigieron al cautivo Atao Wallpa un rescate, prometiéndole soltarlo después. Reseña a la vez el famoso saqueo del adoratorio de Pachacamac, el dramático pedido de Atao Wallpa para que lo exiliaran a España y el prendimiento de Mango Inga Yupangui, finalmente aporta datos sobre los asedios de la ciudad del Cuzco y de Lima en 1536. Cayo Inga's testimony is a document of exceptional value in the retracing of the events of the first years of the Spanish invasion and occupation of the country from Tumbes to Cuzco. It is remarkable for the quality of the source of information, since the reporter was both a member of the Inca

  17. rPer1 and rPer2 induction during phases of the circadian cycle critical for light resetting of the circadian clock.

    Science.gov (United States)

    Nagano, Mamoru; Adachi, Akihito; Masumoto, Koh-hei; Meyer-Bernstein, Elizabeth; Shigeyoshi, Yasufumi

    2009-09-15

    Photic resetting of a biological clock is one of the fundamental characteristics of circadian systems and allows living organisms to adjust to a particular environment. Nocturnal light induces the Per1 and Per2 genes, which leads to a resetting of the circadian clock in the suprachiasmatic nucleus (SCN), the mammalian circadian center. In our present study, we investigated whether light differentially induces the rat Per1 (rPer1) and Per2 (rPer2) genes to enable resetting of their circadian clocks. In a 24-hour LD cycle (12 h light:12 h dark), which is shorter than the normal free-running period for rats, Per1 alone showed strong induction in the ventrolateral region of the SCN (VLSCN) during the early day. In contrast, in a 25 hour LD cycle (12.5 h light:12.5 h dark), which is longer than the free running period for these animals, rPer2 alone was strongly induced in the VLSCN, at the end of the light phase and during the early dark periods. Our current findings therefore suggest that Per1 and Per2 are differentially regulated for daily entrainment to the LD cycle.

  18. Malbed kastetilgad ja kaaluta merekivid / Helen Arak

    Index Scriptorium Estoniae

    Arak, Helen

    2008-01-01

    Liivi Leppiku shibori tehnikas kardinate ja selle edasiarendusena reljeefsete kolmedimensiooniliste kangaste, nn. kivipiltide näitusest Soosoo galeriis Tallinnas. Õhkkerged kivipildid olid 2008. aasta disainiauhinna Bruno nominendid. Lk. 49 kunstniku näpunäiteid kardinate valmistamiseks ja hoolduseks

  19. Helen Mendes | IDRC - International Development Research Centre

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

    Freelance journalist, Curitiba, Brazil. When did you become interested in pursuing science journalism? I have always liked reading about science. When I studied journalism, I knew from the beginning that I wanted to work in science communication. I was lucky that Ciência Hoje, the most popular science magazine in Brazil, ...

  20. Marie N seisis pea peal / Helen Urbanik

    Index Scriptorium Estoniae

    Urbanik, Helen

    2002-01-01

    Tänavuse Eurovisiooni võitjast Marija Naumovast, tema heliplaatidest "Do svetlõh sljoz" ("Magusate pisarateni"), "Leskaties acis" ("Vaata mu silmadesse"), "Ma voix, ma vie" ("Minu hääl, minu tee")