Nueva localidad para Alsodes tumultuosus Veloso, Iturra & Galleguillos, 1979 (Amphibia, Alsodidae en la Cordillera de los Andes, Region de O’Higgins, Chile

Directory of Open Access Journals (Sweden)

Diego Ramírez Álvarez

2015-06-01

Full Text Available Alsodes tumultuosus Veloso, Iturra & Galleguillos, 1979 es un anfibio endémico de Chile, descrito y hasta hace poco conocido únicamente en su localidad tipo, los arroyos cordilleranos del Sector La Parva, en la región Metropolitana. En este artículo se detalla el hallazgo de una nueva localidad para esta especie, en la región de O’Higgins, aproximadamente a 100 kilómetros al sur de La Parva. Este hallazgo, sugiere la ampliación del rango de distribución de esta especie al cordón cordillerano Andino de la región de O’Higgins, y señala la necesidad de efectuar mayores prospecciones e investigación de la especie, que permitan definir claramente su estado de conservación en Chile.

Ultrahigh-energy Cosmic Rays from Fanaroff Riley class II radio galaxies

Science.gov (United States)

Rachen, Joerg; Biermann, Peter L.

1992-08-01

The hot spots of very powerful radio galaxies (Fanaroff Riley class II) are argued to be the sources of the ultrahigh energy component in Cosmic Rays. We present calculations of Cosmic Ray transport in an evolving universe, taking the losses against the microwave background properly into account. As input we use the models for the cosmological radio source evolution derived by radioastronomers (mainly Peacock 1985). The model we adopt for the acceleration in the radio hot spots has been introduced by Biermann and Strittmatter (1987), and Meisenheimer et al. (1989) and is based on first order Fermi theory of particle acceleration at shocks (see, e.g., Drury 1983). As an unknown the actual proportion of energy density in protons enters, which together with structural uncertainties in the hot spots should introduce no more than one order of magnitude in uncertainty: We easily reproduce the observed spectra of high energy cosmic rays. It follows that scattering of charged energetic particles in intergalactic space must be sufficiently small in order to obtain contributions from sources as far away as even the nearest Fanaroff Riley class II radio galaxies. This implies a strong constraint on the turbulent magnetic field in intergalactic space.

Charles Valentine Riley, A Biography: ambition, genius, and the emergence of applied entomology

Science.gov (United States)

Charles Valentine Riley, 1843-1895, was a renowned entomologist and founder of the field of applied or economic entomology. This biography, supported by the scientific collaboration of Dr. Weber, is the first story of his fascinating life at the center of many of the foundational events of American...

First record of Loricifera from the Iberian Peninsula, with the description of Rugiloricus manuelae sp. nov., (Loricifera, Pliciloricidae)

Science.gov (United States)

Pardos, Fernando; Kristensen, Reinhardt Møbjerg

2013-12-01

Sediment samples were taken along the Cantabric platform (Northern Spain) from 200 to 600 meters depth in October 1990. Forty specimens of loriciferans were sorted out of the samples, of which 38 specimens belong to a new species of Rugiloricus. The new species, R. manuelae sp. nov., was investigated with both light (DIC) and electron microscopy (SEM). Complete descriptions of both adult and larval stages are provided, including mapping of the introvert scalids for both stages. Information from a molting stage with an adult male inside confirms conspecificity of larvae and adults. The presence of a highly reduced postlarval stage leaded to the suggestion of a new modified life cycle for the family Pliciloricidae.

The Cost of Privacy: Riley v. California's Impact on Cell Phone Searches

Directory of Open Access Journals (Sweden)

Jennifer Moore

2014-09-01

Full Text Available Riley v. California is the United States Supreme Court’s first attempt to regulate the searches of cell phones by law enforcement.  The 2014 unanimous decision requires a warrant for all cell phone searches incident to arrest absent an emergency.  This work summarizes the legal precedent and analyzes the limitations and practical implications of the ruling.  General guidelines for members of the criminal justice system at all levels consistent with the Supreme Court’s decision are provided.  

MIRAR AL CLAUSTRO. ACERCA DE LO CONVENTUAL EN LA OBRA DE JUANA MANUELA GORRITI

Directory of Open Access Journals (Sweden)

Victoria Cohen Imach

2010-01-01

Full Text Available En la narrativa y en cartas de Juana Manuela Gorriti (Salta, 1816?-Buenos Aires, 1892 emergen figuras adscribibles, en tránsito hacia o afines a diferentes formas de la existencia religiosa femenina: monjas de clausura, donadas, beatas y una modalidad característica del siglo XIX, las integrantes de congregaciones de vida activa. Focalizando el trazado del dominio monacal (al que pertenecen las dos primeras formas ofrecido por sus textos, este trabajo se interroga por los sentidos que parecen latir en ese rasgo. Considerando que para comprenderlo es necesario tener en cuenta la situación y las representaciones relativas a los claustros en la centuria en algunos de los ámbitos en los que la autora reside y que resultan escenario de episodios vinculados al tema en su escritura (Salta, Bolivia, Perú o bien en aquel que opera sólo en la segunda dirección (Chile, en particular, probablemente, Santiago, así como las ideas y la sensibilidad de la propia Gorriti acerca de tal dominio, él aspira centralmente a ofrecer un panorama articulado al respecto y a plantear de modo más sintético ciertos trazos de su construcción en el corpus indicado.

Sampling of post-Riley visual artists surreptitiously probing perception

Science.gov (United States)

Daly, Scott J.

2003-06-01

Attending any conference on visual perception undoubtedly leaves one exposed to the work of Salvador Dali, whose extended phase of work exploring what he dubbed, "the paranoiac-critical method" is very popular as examples of multiple perceptions from conflicting input. While all visual art is intertwined with perceptual science, from convincing three-dimensional illusion during the Renaissance to the isolated visual illusions of Bridget Riley"s Op-Art, direct statements about perception are rarely uttered by the artists in recent times. However, there are still a number of artists working today whose work contains perceptual questions and exemplars that can be of interest to vision scientists and imaging engineers. This talk will start sampling from Op-Art, which is most directly related to psychophysical test stimuli and then will discuss "perceptual installations" from artists such as James Turrell"s, whose focus is often directly on natural light, with no distortions imposed by any capture or display apparatus. His work generally involves installations that use daylight and focus the viewer on its nuanced qualities, such as umbra, air particle interactions, and effects of light adaptation. He is one of the last artists to actively discuss perception. Next we discuss minimal art and electronic art, with video artist Nam June Paik discussing the "intentionally boring" art of minimalism. Another artist using installations is Sandy Skoglund, who creates environments of constant spectral albedo, with the exception of her human occupants. Tom Shannon also uses installations as his media to delve into 3D aspects of depth and perspective, but in an atomized fashion. Beginning with installation concepts, Calvin Collum then adds the restrictive viewpoint of photography to create initially confusing images where the pictorial content and depth features are independent (analogous to the work of Patrick Hughes). Andy Goldsworthy also combines photography with concepts of

Ação de inseticidas usados na cultura do milho a Trichogramma pretiosum Riley, 1879

OpenAIRE

Souza, Jander Rodrigues de

2014-01-01

No presente trabalho estudou-se a toxicidade dos inseticidas (g i.a. L-1) betacipermetrina (0,03), clorfenapir (0,60), clorpirifós (0,96), espinosade (0,16), etofemproxi (0,10), triflumurom (0,08), alfacipermetrina/teflubenzurom (0,0425/0,0425) e lambdacialotrina/tiametoxam (0,11/0,083) para Trichogramma pretiosum Riley, 1879 em suas fases imatura e adulta. As formulações comerciais dos produtos foram diluídas em água destilada, nas maiores concentrações recomendadas pelos fabricantes para o ...

Seletividade de produtos fitossanitários utilizados na cultura do pessegueiro a Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae Selectivity of pesticides used in peach orchard to Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae

Directory of Open Access Journals (Sweden)

Fabrizio Pinheiro Giolo

2007-10-01

Full Text Available A seletividade de dez formulações comerciais de produtos fitossanitários utilizados na cultura do pessegueiro foi avaliada em laboratório (25±1 ºC, UR 70±10% e fotofase de 14 horas, através da exposição de adultos de Trichogramma pretiosum Riley a resíduos secos dos produtos pulverizados sobre placas de vidro. O número de ovos parasitados por fêmea, foi mensurado e a redução no parasitismo (RP, em relação à testemunha (água, foi utilizada para classificar os compostos em: inócuos (99% RP. Os produtos fitossanitários captana, ditianona, mancozebe, metoxifenozida e óxido cuproso foram inócuos; glifosato e óleo mineral foram levemente nocivos e abamectina, cianamida e etofenproxi foram nocivos a T. pretiosum.The selectivity of ten commercial pesticide formulations used in peach orchard was evaluated in laboratory tests (25±1 ºC, RH 70±10% and 14 hours photophase by exposing the adult of Trichogramma pretiosum Riley to fresh dry pesticide film applied on glass plates. The number of eggs parasitized per adult female and the reduction in parasitism (RP compared to control (treated with water were used to measure the effect of the chemical in harmless (99% RP. The pesticides captan, copper oxide, dithianon, mancozeb and methoxyfenozide were harmless; gliphosate and mineral oil was slightly harmful and abamectin, cyanamide and etofenprox were harmful to T. pretiosum.

Entrevista a: Prof. Dña. Manuela Romo: Profesora de la Facultad de Psicología de la Universidad Autónoma de Madrid y experta en Psicología de la Creatividad

OpenAIRE

Morais, Maria de Fátima

2015-01-01

Breve CV de Prof. Manuela Romo: Ha centrado su investigación en la creatividad durante más de treinta años, publicando cuatro libros, entre ellos el libro Psicología de la Creatividad, y numerosos artículos y trabajos de investigación. Es co-autora de un ensayo para evaluar la creatividad en los niños: TCI, Test de Creatividad Infantil (TEA Ediciones, 2008, Madrid). Fue el contribuyente español en los libros Creativity's Global Corresponsales, de 1998 a 2003 publicado por Morris Stein. Wins...

Estrategia didáctica para la formación en investigación en la educación virtual: Experiencia en la Universidad Manuela Beltrán

Directory of Open Access Journals (Sweden)

Viviana Betancur Chicué

2015-12-01

Full Text Available Rev.esc.adm.neg This paper describes the problem detected in virtual education research formation at Universidad Manuela Beltran. In this way, the design of a pedagogic strategy was made based on technological resources, also the design of tasks which contextualize students and the search of a learning style focusing on collaborative work. Such strategy aims at having a successful development of a graduation project for students of undergraduate and postgraduate virtual programs. As a result of the implementation of this strategy, students have shown: more use of databases for the search of specialized information, writing of academic papers based on APA norms and an ethical management of information, identification and the design of methodological routes , as well as the proposal of new research projects.

Torsion of a giant mesocolic lipoma in a child with Bannayan-Riley-Ruvalcaba syndrome

International Nuclear Information System (INIS)

Laguna, Benjamin A.; Iyer, Ramesh S.; Rudzinski, Erin R.; Roybal, Jessica L.; Stanescu, A.L.

2015-01-01

A 6-year-old boy with Bannayan-Riley-Ruvalcaba syndrome (BRRS) presented to the emergency department with periumbilical abdominal pain for 12 h. A contrast-enhanced abdominal and pelvis CT examination revealed significant interval change in the size and appearance of a previously seen hypoattenuating right mesocolic fatty mass suggestive for lipoma, first observed 5 months prior. This lesion demonstrated new enhancing internal septations, a thickened capsule, interval development of adjacent mesenteric fat stranding and engorgement of the mesenteric vessels. Given the short follow-up interval and acute clinical presentation, imaging findings were suggestive for torsion. We present this case for the unusual imaging findings as well as to highlight the differential diagnosis for abdominal fat containing lesions by imaging in patients with BRRS and other hamartomatous syndromes. (orig.)

Torsion of a giant mesocolic lipoma in a child with Bannayan-Riley-Ruvalcaba syndrome

Energy Technology Data Exchange (ETDEWEB)

Laguna, Benjamin A. [University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA (United States); Iyer, Ramesh S.; Rudzinski, Erin R.; Roybal, Jessica L.; Stanescu, A.L. [Seattle Children' s Hospital, Department of Radiology, M/S MA.7.220, 4800 Sand Point Way NE, PO Box 5371, Seattle, WA (United States)

2015-03-01

A 6-year-old boy with Bannayan-Riley-Ruvalcaba syndrome (BRRS) presented to the emergency department with periumbilical abdominal pain for 12 h. A contrast-enhanced abdominal and pelvis CT examination revealed significant interval change in the size and appearance of a previously seen hypoattenuating right mesocolic fatty mass suggestive for lipoma, first observed 5 months prior. This lesion demonstrated new enhancing internal septations, a thickened capsule, interval development of adjacent mesenteric fat stranding and engorgement of the mesenteric vessels. Given the short follow-up interval and acute clinical presentation, imaging findings were suggestive for torsion. We present this case for the unusual imaging findings as well as to highlight the differential diagnosis for abdominal fat containing lesions by imaging in patients with BRRS and other hamartomatous syndromes. (orig.)

The measurement of the environmental concern: A critical review of Riley E. Dunlap's work

Directory of Open Access Journals (Sweden)

Jose Antonio Cerrillo Vidal

2010-03-01

Full Text Available After a promising beginning in the 1970s, environmental sociology faces a series of problems, derived mainly from its inability to link people's environmental behavior with the values they express in surveys (the environmental gap. This stagnation is due to inadequate theoretical and methodological reflection in the discipline. Applying the archaeological method, this article analyzes the work of the environmental sociologist Riley E. Dunlap, a prominent figure and a representative of the crisis of the discipline. Methodological individualism, the preference for the use of surveys of the general population, the lack of a strong theoretical frame, or of attention to structural and historical factors - all these are faults in the work of Dunlap and his followers. It is these faults that are arguably the main causes of the impasse in which environmental sociology now finds itself. 

Persistência de agrotóxicos indicados na produção integrada de pêssego a Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae Persistence of pesticides used in integrated peach production on Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae

Directory of Open Access Journals (Sweden)

Fabrizio Pinheiro Giolo

2008-03-01

Full Text Available A persistência (duração da atividade nociva de cinco agrotóxicos indicados na Produção Integrada de Pêssego (PIP foi avaliada, expondo-se adultos de Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae ao contato com resíduos de inseticidas, pulverizados sobre folhas, a diferentes intervalos de tempo, baseando-se na metodologia sugerida pela International Organization for Biological and Integrated Control of Noxious Animals and Plants (IOBC. Os resultados obtidos em relação à persistência, permitiu classificar os agrotóxicos, produto comercial/ingrediente ativo (g ou mL de produto comercial 100L-1, Dipterex 500/triclorfom (300, Sumithion 500 CE/fenitrotiona (150 e Tiomet 400 CE/dimetoato (120 como levemente persistentes (5-15 dias; o inseticida Malathion 1000 CE/malationa (200 como moderadamente persistente (16-30 dias e o fungicida/acaricida Kumulus DF/enxofre (600 como persistente (> 31 dias a adultos de T. pretiosum.The persistence (duration of harmful activity of five insecticides indicated in the Integrated Peach Production (IPP was evaluated by adult exposure of Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae to insecticide residues on plant leaves at different time intervals after treatment using the International Organization for Biological and Integrated Control of Noxious Animals and Plants (IOBC based on the suggested methodology.The results obtained in relation to the disease persistence will permit to classify the pesticides, commercial formulation/active ingredient (g or mL commercial formulation 100L-1, Dipterex 500/trichlorphon (300, Sumithion 500 CE/fenitrothion (150 and Tiomet 400 CE/dimethoate (120 as slightly persistent (5-15 days; the insecticide Malathion 1000 CE/malathion (200 as moderately persistent (16-30 days and the fungicide Kumulus DF/sulphur (600 as persistent (>31 days to T. pretiosum adults.

Medición de la conciencia ambiental: Una revisión crítica de la obra de Riley E. Dunlap The measurement of the environmental concern: A critical review of Riley E. Dunlap's work

Directory of Open Access Journals (Sweden)

Jose Antonio Cerrillo Vidal

2010-03-01

Full Text Available Después de un comienzo prometedor en la década de 1970, la sociología ambiental se enfrenta a una serie de problemas, derivados principalmente de su incapacidad de vincular comportamientos ambientalistas con los valores declarados en las encuestas (el gap medioambiental. Este estancamiento se debe a la escasa reflexividad teórica y metodológica de la disciplina. Aplicando el método arqueológico, este artículo analiza la obra de la principal figura de la sociología ambiental, Riley E. Dunlap, representativa de la crisis de la especialidad. El individualismo metodológico, la preferencia por el uso de encuestas a población general, la falta de un marco teórico fuerte y de atención a factores estructurales e históricos, característicos del trabajo de Dunlap y sus seguidores, parecen ser las principales causas del bloqueo de la sociología ambiental, dada su enorme influencia en la disciplina. After a promising beginning in the 1970s, environmental sociology faces a series of problems, derived mainly from its inability to link people's environmental behavior with the values they express in surveys (the environmental gap. This stagnation is due to inadequate theoretical and methodological reflection in the discipline. Applying the archaeological method, this article analyzes the work of the environmental sociologist Riley E. Dunlap, a prominent figure and a representative of the crisis of the discipline. Methodological individualism, the preference for the use of surveys of the general population, the lack of a strong theoretical frame, or of attention to structural and historical factors - all these are faults in the work of Dunlap and his followers. It is these faults that are arguably the main causes of the impasse in which environmental sociology now finds itself.

Selectivity of Beauveria bassiana and Metarrhizium anisopliae to Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae); Seletividade de Beauveria bassiana e Metarhizium anisopliae a Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)

Energy Technology Data Exchange (ETDEWEB)

Potrich, Michele; Silva, Everton L. da; Neves, Pedro M.O.J. [Universidade Estadual de Londrina (UEL), PR (Brazil). Centro de Ciencias Agrarias], e-mail: profmichele@gmail.com, e-mail: evertonloz@gmail.com, e-mail: pedroneves@uel.br; Alves, Luis F.A.; Daros, Alaxsandra [Universidade do Oeste do Parana (UNIOESTE), Cascavel, PR (Brazil). Centro de Ciencias Biologicas e da Saude. Lab. de Zoologia de Invertebrados], e-mail: lfaalves@unioeste.br; Haas, Jucelaine; Pietrowski, Vanda [Universidade do Oeste do Parana (UNIOESTE), Marechal Candido Rondon, PR (Brazil). Centro de Ciencias Agrarias], e-mail: jubarth@gmail.com, e-mail: vandapietrowski@gmail.com

2009-07-01

Trichogramma pretiosum Riley and the entomopathogenic fungi Beauveria bassiana and Metarhizium anisopliae are efficient biological control agents and are thought to be used jointly. In here, we investigated if these entomopathogens could have any side-effects on T. pretiosum. Therefore, 1 x 8 cards containing sterilized eggs of Anagasta kuehniella (Zeller) that were sprayed with 0.2 ml of B. bassiana or M. anisopliae (1.0 X 10{sup 9} conidia/ml) were offered to a T. pretiosum female for 24h (30 cards/fungus = 30 replicates). Afterwards, females were isolated in glass tubes. The control group was sprayed with sterile distillated water + Tween 80 (0.01%). In addition, 60 cards with sterilized eggs of A. kuehniella were submitted to parasitism by females of T. pretiosum for 24h. Of these cards, 30 were sprayed with B. bassiana or M. anisopliae and 30 with distillated water + Tween 80 (0.01%), and observed daily until parasitoid emergence. Metarhizium anisopliae decreased parasitoid emergence and caused confirmed mortality. Therefore, field and semi-field experiments should be conducted for a final assessment of the side-effects of these entomopathogens on Trichogramma as a ways to develop a control strategy in which both can be used. (author)

A FANAROFF-RILEY TYPE I CANDIDATE IN NARROW-LINE SEYFERT 1 GALAXY Mrk 1239

Energy Technology Data Exchange (ETDEWEB)

Doi, Akihiro [The Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuou-ku, Sagamihara, Kanagawa 252-5210 (Japan); Wajima, Kiyoaki [Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong, Daejeon 305-348 (Korea, Republic of); Hagiwara, Yoshiaki [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Inoue, Makoto, E-mail: akihiro.doi@vsop.isas.jaxa.jp [Academia Sinica Institute of Astronomy and Astrophysics, P.O. Box 23-141, Taipei 10617, Taiwan (China)

2015-01-10

We report finding kiloparsec-scale radio emissions aligned with parsec-scale jet structures in the narrow-line Seyfert 1 (NLS1) galaxy Mrk 1239 using the Very Large Array and the Very Long Baseline Array. Thus, this radio-quiet NLS1 has a jet-producing central engine driven by essentially the same mechanism as that of other radio-loud active galactic nuclei (AGNs). Most of the radio luminosity is concentrated within 100 parsecs and overall radio morphology looks edge-darkened; the estimated jet kinetic power is comparable to Fanaroff-Riley Type I radio galaxies. The conversion from accretion to jet power appears to be highly inefficient in this highly accreting low-mass black hole system compared with that in a low-luminosity AGN with similar radio power driven by a sub-Eddington, high-mass black hole. Thus, Mrk 1239 is a crucial probe to the unexplored parameter spaces of central engines for a jet formation.

Long-chain 3-hydroxyacyl-coenzyme A dehydrogenase (L-CHAD) deficiency in a patient with the Bannayan-Riley-Ruvalcaba syndrome.

Science.gov (United States)

Fryburg, J S; Pelegano, J P; Bennett, M J; Bebin, E M

1994-08-01

Bannayan-Riley-Ruvalcaba syndrome (BRRS) is an autosomal dominant condition of macrocephaly in combination with lipomas/hemangiomas, hypotonia, developmental delay, and a lipid myopathy. The etiology of the lipid storage myopathy has been unclear. We describe a black boy with findings of BRRS who also has a defect in long-chain fatty acid oxidation expressed in cultured skin fibroblasts as a deficiency of long-chain-L-3-hydroxyacyl-CoA dehydrogenase (L-CHAD). He also has an abnormal brain MRI and increased size of both lower limbs. We present this child because of his unusual combination of findings, and postulate that L-CHAD deficiency may be the cause of the lipid myopathy in BRRS.

Bannayan-Riley-Ruvalcaba syndrome: a cause of extreme macrocephaly and neurodevelopmental delay.

LENUS (Irish Health Repository)

Lynch, N E

2012-02-01

BACKGROUND: Bannayan-Riley-Ruvalcaba syndrome (BRRS) is an autosomal dominant condition characterised by macrocephaly, developmental delay and subtle cutaneous features. BRRS results from mutations in the PTEN gene. In adults, PTEN mutations cause Cowden syndrome where, in addition to the macrocephaly, there is a higher risk of tumour development. Diagnosis of BRRS is often delayed as presentation can be variable, even within families. AIMS: To identify characteristics of this condition which might facilitate early diagnosis. Prompt diagnosis not only avoids unnecessary investigations in the child but potentially identifies heterozygote parents who are at risk of tumour development. METHODS AND RESULTS: Six children with a PTEN mutation were identified. All had extreme macrocephaly. Four parents and a male sibling were found to have a PTEN mutation on subsequent testing. Affected parents had extreme macrocephaly and a history of thyroid adenoma, or breast or skin lesions. All six children had presented to medical attention before the age of 2.5 years (3\\/6 were investigated as neonates), but the median age at diagnosis was 5 years. Four of the children had multiple investigations prior to identification of a PTEN mutation. CONCLUSION: BRRS should be considered in children with extreme macrocephaly as it is the most consistent clinical feature seen, particularly where there is a family history of macrocephaly.

[Selectivity of Beauveria bassiana and Metarhizium anisopliae to Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)].

Science.gov (United States)

Potrich, Michele; Alves, Luis F A; Haas, Jucelaine; Da Silva, Everton R L; Daros, Alaxsandra; Pietrowski, Vanda; Neves, Pedro M O J

2009-01-01

Trichogramma pretiosum Riley and the entomopathogenic fungi Beauveria bassiana and Metarhizium anisopliae are efficient biological control agents and are thought to be used jointly. In here, we investigated if these entomopathogens could have any side-effects on T. pretiosum. Therefore, 1 x 8 cards containing sterilized eggs of Anagasta kuehniella (Zeller) that were sprayed with 0.2 ml of B. bassiana or M. anisopliae (1.0 x 10(9) conidia/ml) were offered to a T. pretiosum female for 24h (30 cards/fungus = 30 replicates). Afterwards, females were isolated in glass tubes. The control group was sprayed with sterile distillated water + Tween 80 (0.01%). In addition, 60 cards with sterilized eggs of A. kuehniella were submitted to parasitism by females of T. pretiosum for 24h. Of these cards, 30 were sprayed with B. bassiana or M. anisopliae and 30 with distillated water + Tween 80 (0.01%), and observed daily until parasitoid emergence. Metarhizium anisopliae decreased parasitoid emergence and caused confirmed mortality. Therefore, field and semi-field experiments should be conducted for a final assessment of the side-effects of these entomopathogens on Trichogramma as a ways to develop a control strategy in which both can be used.

Selectivity of Beauveria bassiana and Metarrhizium anisopliae to Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)

International Nuclear Information System (INIS)

Potrich, Michele; Silva, Everton L. da; Neves, Pedro M.O.J.; Alves, Luis F.A.; Daros, Alaxsandra; Haas, Jucelaine; Pietrowski, Vanda

2009-01-01

Trichogramma pretiosum Riley and the entomopathogenic fungi Beauveria bassiana and Metarhizium anisopliae are efficient biological control agents and are thought to be used jointly. In here, we investigated if these entomopathogens could have any side-effects on T. pretiosum. Therefore, 1 x 8 cards containing sterilized eggs of Anagasta kuehniella (Zeller) that were sprayed with 0.2 ml of B. bassiana or M. anisopliae (1.0 X 10 9 conidia/ml) were offered to a T. pretiosum female for 24h (30 cards/fungus = 30 replicates). Afterwards, females were isolated in glass tubes. The control group was sprayed with sterile distillated water + Tween 80 (0.01%). In addition, 60 cards with sterilized eggs of A. kuehniella were submitted to parasitism by females of T. pretiosum for 24h. Of these cards, 30 were sprayed with B. bassiana or M. anisopliae and 30 with distillated water + Tween 80 (0.01%), and observed daily until parasitoid emergence. Metarhizium anisopliae decreased parasitoid emergence and caused confirmed mortality. Therefore, field and semi-field experiments should be conducted for a final assessment of the side-effects of these entomopathogens on Trichogramma as a ways to develop a control strategy in which both can be used. (author)

Assessment of Energetic Compounds, Semi-volatile Organic Compounds, and Trace Elements in Streambed Sediment and Stream Water from Streams Draining Munitions Firing Points and Impact Areas, Fort Riley, Kansas, 2007-08

Science.gov (United States)

Coiner, R.L.; Pope, L.M.; Mehl, H.E.

2010-01-01

An assessment of energetic compounds (explosive and propellant residues) and associated semi-volatile organic compounds (SVOCs) and trace elements in streambed sediment and stream water from streams draining munitions firing points and impact areas at Fort Riley, northeast Kansas, was performed during 2007-08 by the U.S. Geological Survey (USGS) in cooperation with the U.S. Army. Streambed sediment from 16 sampling sites and stream-water samples from 5 sites were collected at or near Fort Riley and analyzed for as many as 17 energetic compounds, 65 SVOCs, and 27 trace elements. None of the energetic compounds or SVOCs were detected in streambed sediment collected from sites within the Fort Riley Military Reservation. This may indicate that these compounds either are not transported from dispersal areas or that analytical methods are not sensitive enough to detect the small concentrations that may be transported. Concentrations of munitions-associated trace elements did not exceed sediment-quality guidelines recommended by the U.S. Environmental Protection Agency (USEPA) and are not indicative of contamination of streambed sediment at selected streambed sampling sites, at least in regards to movement from dispersal areas. Analytical results of stream-water samples provided little evidence of contamination by energetic compounds, SVOCs, or associated trace elements. Perchlorate was detected in 19 of 20 stream-water samples at concentrations ranging from an estimated 0.057 to an estimated 0.236 ug/L (micrograms per liter) with a median concentration of an estimated 0.114 ug/L, substantially less than the USEPA Interim Health Advisory criterion (15 ug/L), and is in the range of documented background concentrations. Because of these small concentrations and possible natural sources (precipitation and groundwater), it is likely that the occurrence of perchlorate in stream water is naturally occurring, although a definitive identification of the source of perchlorate in

Rezension von: Nancy E. Riley: Gender, Work, and Family in a Chinese Economic Zone. Laboring in Paradise. Wiesbaden: Springer VS 2013.

Directory of Open Access Journals (Sweden)

Yvonne Berger

2015-03-01

Full Text Available Das Buch eignet sich vor allem für Wissenschaftler/-innen, die sich mit den Lebenswirklichkeiten von Arbeitsmigrantinnen in China aus geschlechtertheoretischer Sicht beschäftigen. Nancy E. Riley interessiert sich ethnographisch für den Zusammenhang von Geschlecht, Arbeit und Familie. Konkret geht die Autorin dabei der Frage nach, inwiefern die in der Dalian Economic Zone (DEZ arbeitenden Frauen Erwerbsarbeit als eine Ressource der sozialen Mobilität und der Verhandlung innerfamilialer Machtpositionen nutzbar machen können. Mit Fokus auf dieser (Sonder-Wirtschaftszone und den familialen Lebenswirklichkeiten der Frauen erschließen sich spannende Einsichten in das wirtschaftlich aufstrebende China und den damit einhergehenden sozialen Wandel von Geschlechterverhältnissen.

Tabela de Esperança de Vida de Trichogramma pretiosum Riley em Ovos de Trichoplusia ni Hübner em Diferentes Condicionamentos Térmicos

Directory of Open Access Journals (Sweden)

José de Carvalho

2012-11-01

Table of life Expectancy of Trichogramma pretiosum Riley in Eggs of Trichoplusia ni Hübner Different Thermal Conditioning Abstract. The objective of this work was to study the influence of temperature on demographic parameters of the egg parasitoid, Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae reared on eggs of cabbage looper, Trichoplusia ni Hübner (Lepidoptera: Noctuidae in conditions the laboratory. To this end, we made sky blue cards containing eggs of T. ni that were offered to the parasitism of T. pretiosum for 24 hours at temperatures of 18, 21, 24, 27, 30 and 33 °C. After this period, the parasitoids were removed and kept the cards in the same thermal constraints to the emergence of offspring. From the emergence of offspring, females of T. pretiosum were individually placed in Eppendorf tubes being fed honey and kept at temperatures of origin. The duration of egg-adult period and female longevity were strongly influenced by thermal regime, being opposite to its increase (16.5 to 4.5 days, for the duration of egg-adult period; and 11.9 to 5.5 days, for and female longevity. The percentage of emergence of offspring, number of offspring per egg and sex ratio were not influenced statistically significant. The survival (Lx of T. pretiosum was more influenced at temperatures 27, 30 and 33 ° C. Life expectancy of adults (ex was higher in lower temperatures (18, 21 and 24 ° C, being verified, on average, life expectancy of 32, 28 and 26 days, respectively. Thus it was found that the temperature can be the limiting factor for the development and survival of T. pretiosum in biological control programs of T. ni.

DB Riley-low emission boiler system (LEBS): Superior power for the 21st century

Energy Technology Data Exchange (ETDEWEB)

Beittel, R. [DB Riley, Inc., Worcester, MA (United States); Ruth, L.A. [Dept. of Energy, Pittsburgh, PA (United States)

1997-12-31

In conjunction with the US Department of Energy, DB Riley, Inc., is developing a highly advanced coal-fired power-generation plant called the Low Emission Boiler Systems (LEBS). By the year 2000, LEBS will provide the US electric power industry with a reliable, efficient, cost-effective, environmentally superior alternative to current technologies. LEBS incorporates significant advances in coal combustion, supercritical steam boiler design, environmental control, and materials development. The system will include a state-of-the-art steam cycle operating at supercritical steam conditions; a slagging combustor that produces vitrified ash by-products; low nitrogen oxide (NOx) burners; a new, dry, regenerable flue gas cleanup system (copper oxide process) for simultaneously capturing sulfur dioxide (SO{sub 2}) and nitrogen oxides (NOx); a pulse-jet fabric filter for particulate capture; and a low-temperature heat-recovery system. The copper oxide flue gas cleanup system, which has been under development at DOE`s Pittsburgh field center, removes over 98% of SO{sub 2} and 95% of NOx from flue gas. A new moving-bed design provides efficient sorbent utilization that lowers the cleanup process cost. The captured SO{sub 2} can be converted to valuable by-products such as sulfuric acid and/or element sulfur, and the process generates no waste.

Parasitism capacity of Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) reared under different temperatures on Bonagota salubricola (Meyrick) (Lepidoptera: Tortricidae) eggs; Capacidade de parasitismo de Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) em ovos de Bonagota salubricola (Meyrick) (Lepidoptera: Tortricidae) sob diferentes temperaturas

Energy Technology Data Exchange (ETDEWEB)

Pastori, Patrik L. [Universidade Federal do Parana (UFPR), Curitiba, PR (Brazil). Setor de Ciencias Biologicas. Dept. de Zoologia]. E-mail: plpastori@yahoo.com.br; Monteiro, Lino B. [Universidade Federal do Parana (UFPR), Curitiba, PR (Brazil). Setor de Ciencias Agrarias. Dept. de Fitotecnia e Fitossanitarismo]. E-mail: lbmonteiro@terra.com.br; Botton, Marcos [EMBRAPA, Bento Goncalves, RS (Brazil). Centro Nacional de Pesquisa Uva e Vinho]. E-mail: marcos@cnpuv.embrapa.br; Pratissoli, Dirceu [Universidade Federal do Espirito Santo (UFES), Alegre, ES (Brazil). Centro de Ciencias Agrarias. Dept. de Producao Vegetal). E-mail: pratissoli@cca.ufes.br

2007-11-15

The parasitism capacity of Trichogramma pretiosum Riley strain bonagota on Bonagota salubricola (Meyrick) eggs was studied under the temperatures of 18, 20, 22, 25, 28, 30 and 32 deg C. The number of days with parasitism, accumulated parasitism, total number of eggs parasitized per female and parasitoid longevity was evaluated. In the first 24h, parasitism ranged from 1.6 (32 deg C) to 8.8 (22 deg C) eggs of B. salubricola. Accumulated egg parasitism of B. salubricola reached 80% in 1st to 4th day at 20 deg C to 32 deg C, respectively, and in the 7th day at 18 deg C. Temperatures from 18 deg C to 22 deg C were the best suited for the total eggs parasitized for female, resulting in 35.4 and 24.6 eggs/male respectively. T. pretiosum female longevity ranged from 7.8 to 2.5 days, at 18 deg C and 32 deg C, respectively. The results showed that T. pretiosum strain bonagota is better adapted to temperatures from 18 deg C to 22 deg C. (author)

ON THE ORIGIN OF FANAROFF-RILEY CLASSIFICATION OF RADIO GALAXIES: DECELERATION OF SUPERSONIC RADIO LOBES

International Nuclear Information System (INIS)

Kawakatu, Nozomu; Kino, Motoki; Nagai, Hiroshi

2009-01-01

We argue that the origin of 'FRI/FRII dichotomy' - the division between Fanaroff-Riley class I (FRI) with subsonic lobes and class II (FRII) radio sources with supersonic lobes is sharp in the radio-optical luminosity plane (Owen-White diagram) - can be explained by the deceleration of advancing radio lobes. The deceleration is caused by the growth of the effective cross-sectional area of radio lobes. We derive the condition in which an initially supersonic lobe turns into a subsonic lobe, combining the ram pressure equilibrium between the hot spots and the ambient medium with the relation between 'the hot spot radius' and 'the linear size of radio sources' obtained from the radio observations. We find that the dividing line between the supersonic lobes and subsonic ones is determined by the ratio of the jet power L j to the number density of the ambient matter at the core radius of the host galaxy n-bar a . It is also found that the maximal ratio of (L j ,n-bar a ) exists and its value resides in (L j ,n-bar a ) max ∼10 44-47 er s -1 cm 3 , taking into account considerable uncertainties. This suggests that the maximal value (L j ,n-bar a ) max separates between FRIs and FRIIs.

Biologia e parasitismo de Trichogramma atopovirilia Oatman & Platner e Trichogramma pretiosum Riley (Hymenoptera, Trichogrammatidae em ovos de Spodoptera frugiperda (J.E. Smith (Lepidoptera, Noctuidae Biology and parasitism of Trichogramma atopovirilia Oatman & Platner and Trichogramma pretiosum Riley (Hymenoptera, Trichogrammatidae on eggs of Spodoptera frugiperda (J.E. Smith (Lepidoptera, Noctuidae

Directory of Open Access Journals (Sweden)

Eduardo B. Beserra

2004-03-01

Full Text Available Comparou-se a capacidade de paratisimo e o desenvolvimento de Trichogramma atopovirilia Oatman & Platner e T. pretiosum Riley visando à seleção da espécie mais adequada para o controle de Spodoptera frugiperda (J. E. Smith. Os experimentos foram conduzidos em laboratório à temperatura de 25±2ºC, U.R. de 70±0% e fotoperíodo de 14L:10E. Tanto T. atopovirilia como T. pretiosum desenvolveram-se bem e mostraram-se adaptados a ovos de S. frugiperda, mesmo após serem criados por várias gerações em ovos de Anagasta kuehniella Zeller. Entretanto, fêmeas de T. atopovirilia foram mais agressivas e de maior especificidade à praga, já que apresentaram maior capacidade de parasitismo em posturas com diferentes barreiras físicas e maior aceitação pelo hospedeiro natural, em relação à A. kuehniella. Por este maior parasitismo e especificidade de T. atopovirilia aos ovos da praga, deve-se dar preferência à utilização desta espécie para controle de S. frugiperda.The parasitism capacity and development of Trichogramma atopovirilia Oatman & Platner and Trichogramma pretiosum Riley were studied in order to select the most suitable species to control Spodoptera frugiperda (J. E. Smith. The experiments were conducted under laboratory conditions at 25±2ºC, 70±10% RH and 14L:10D photoperiod. Both T. atopovirilia and T. pretiosum showed good development and adaptation to S. frugiperda eggs even after being reared for several generations in eggs of Anagasta kuehniella Zeller. However, T. atopovirilia females were more aggressive and showed higher specificity to the pest, with a higher parasitism capacity in eggs laid with different physical barriers and were more accepted by the natural host in comparison with A. kuehniella. Because of the higher parasitism rate and specificity of T. atopovirilia to the pest's egg this species should be given preference to control S. frugiperda.

Special emission measurements on Riley Stoker's advanced CFB pilot facility co-firing non-recyclable de-inking paper fiber and high sulfur eastern bituminous coal

International Nuclear Information System (INIS)

Dixit, V.B.; Mongeon, R.K.; Reicker, E.L.

1993-01-01

Riley Stoker has developed advanced industrial CFB designs that utilize eastern bituminous coals as fuel, and have the potential to use coal in combination with other fuels. Various fiber waste streams in paper recycling processes have sufficient carbonaceous content to be considered as possible sources of such fuels that could fire FBC combustors. The American Paper Institute estimates that by the mid-1990's more than 40% of the waste paper will be recycled, reaching much higher numbers by the year 2000. To evaluate the effectiveness of co-firing such fuels, a test program was conducted on Riley's pilot-scale circulating fluidized bed test facility. A de-inked newsprint derived fiber waste was successfully co-fired with high sulfur coal. The waste fiber material containing approximately 50% moisture had a heating value of 3500 Btu/lb. The coal was strip-mined and contained a lot of clay and excessive quantities of fines making it difficult to burn in conventional boilers. Tests were also conducted with a combination fuel consisting of coal, fiber waste and a high carbon fly ash. In addition to obtaining performance data on combustion efficiency, sulfur capture, and NO x emissions, special emission measurements were also made to quantify the organics, trace metals and hydrochloric acid levels in the flue gas. The co-firing tests achieved a maximum combustion efficiency of 98% and sulfur capture of 90%. The effect of Ca/S mole ratio and temperature is discussed. Although there are no formal regulations in place for FBC systems regarding special emissions, the levels measured were far below the allowable limits for waste incinerators. Materials handling experience on the pilot facility relating to co-firing is also discussed. This is done to identify special considerations for designing commercial facilities. A brief overview of the de-inking waste fiber combustion market is also presented

Parasitism and super parasitism of Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) on Sitotroga cerealella (Oliver) (Lepidoptera: Gelechiidae) eggs; Parasitismo e superparasitismo de Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) em ovos de Sitotroga cerealella (Oliver) (Lepidoptera: Gelechiidae)

Energy Technology Data Exchange (ETDEWEB)

Moreira, Marciene D.; Torres, Jorge B. [Universidade Federal Rural de Pernambuco (UFRPE), Recife, PE (Brazil). Dept. de Agronomia. Entomologia; Santos, Maria C.F. dos; Beserra, Eduardo B. [Universidade Estadual da Paraiba, Campina Grande, PB (Brazil). Dept. de Biologia; Almeida, Raul P. de [EMBRAPA Algodao, Campina Grande, PB (Brazil)

2009-03-15

The parasitoid Trichogramma has been used worldwide as biological control agent due to its wide geographic distribution, high specialization and efficacy against many lepidopteran pests. Biological and behavioral traits of Trichogramma pretiosum Riley parasitizing Sitotroga cerealella (Oliver) eggs were studied aiming to a better understanding of the Results from parasitism and super parasitism. The variables investigated were: host acceptance and contact time by T. pretiosum on parasitized host, percentage of parasitoid emergence, number of deformed individuals produced, egg-adult period, sex ratio, offspring female body size and longevity, and number of S. cerealella eggs parasitized/female. Parasitism rejection was observed on parasitized host eggs after 24, 72 and 120h of parasitism. The rejection was higher for eggs parasitized after 72h and 120h of parasitism as compared to the eggs after 24h of parasitism. T. pretiosum contact time on eggs after 24h of parasitism was greater than on 72 and 120h. The offspring produced from hosts from which a single parasitoid emerged were larger, exhibited no deformities and greater capacity of parasitism, different from those produced from eggs where two parasitoids emerged. Offspring longevity, however, was similar for females emerged from hosts from which one or two adults emerged. In Conclusion, T. pretiosum was able to recognize previously parasitized eggs and the super parasitism reduced the parasitoid.reproductive success. (author)

Parasitism capacity of Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) reared under different temperatures on Bonagota salubricola (Meyrick) (Lepidoptera: Tortricidae) eggs

International Nuclear Information System (INIS)

Pastori, Patrik L.; Monteiro, Lino B.; Botton, Marcos; Pratissoli, Dirceu

2007-01-01

The parasitism capacity of Trichogramma pretiosum Riley strain bonagota on Bonagota salubricola (Meyrick) eggs was studied under the temperatures of 18, 20, 22, 25, 28, 30 and 32 deg C. The number of days with parasitism, accumulated parasitism, total number of eggs parasitized per female and parasitoid longevity was evaluated. In the first 24h, parasitism ranged from 1.6 (32 deg C) to 8.8 (22 deg C) eggs of B. salubricola. Accumulated egg parasitism of B. salubricola reached 80% in 1st to 4th day at 20 deg C to 32 deg C, respectively, and in the 7th day at 18 deg C. Temperatures from 18 deg C to 22 deg C were the best suited for the total eggs parasitized for female, resulting in 35.4 and 24.6 eggs/male respectively. T. pretiosum female longevity ranged from 7.8 to 2.5 days, at 18 deg C and 32 deg C, respectively. The results showed that T. pretiosum strain bonagota is better adapted to temperatures from 18 deg C to 22 deg C. (author)

Parasitism and super parasitism of Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) on Sitotroga cerealella (Oliver) (Lepidoptera: Gelechiidae) eggs

International Nuclear Information System (INIS)

Moreira, Marciene D.; Torres, Jorge B.

2009-01-01

The parasitoid Trichogramma has been used worldwide as biological control agent due to its wide geographic distribution, high specialization and efficacy against many lepidopteran pests. Biological and behavioral traits of Trichogramma pretiosum Riley parasitizing Sitotroga cerealella (Oliver) eggs were studied aiming to a better understanding of the Results from parasitism and super parasitism. The variables investigated were: host acceptance and contact time by T. pretiosum on parasitized host, percentage of parasitoid emergence, number of deformed individuals produced, egg-adult period, sex ratio, offspring female body size and longevity, and number of S. cerealella eggs parasitized/female. Parasitism rejection was observed on parasitized host eggs after 24, 72 and 120h of parasitism. The rejection was higher for eggs parasitized after 72h and 120h of parasitism as compared to the eggs after 24h of parasitism. T. pretiosum contact time on eggs after 24h of parasitism was greater than on 72 and 120h. The offspring produced from hosts from which a single parasitoid emerged were larger, exhibited no deformities and greater capacity of parasitism, different from those produced from eggs where two parasitoids emerged. Offspring longevity, however, was similar for females emerged from hosts from which one or two adults emerged. In Conclusion, T. pretiosum was able to recognize previously parasitized eggs and the super parasitism reduced the parasitoid.reproductive success. (author)

Efeito de produtos fitossanitários utilizados na cultura do tomateiro (Lycopersicon esculentum Mill. sobre Trichogramma pretiosum Riley, 1879 nas gerações F1 e F2 em ovos de Anagasta kuehniella (Zeller, 1879 Effect of pesticides used on tomato crop (Lycopersicon esculentum Mill. on Trichogramma pretiosum Riley, 1879 in F1 and F2 generations on Anagasta kuehniella (Zeller, 1879 eggs

Directory of Open Access Journals (Sweden)

Geraldo Andrade Carvalho

2003-04-01

Full Text Available Duas populações de Trichogramma pretiosum Riley, 1879, provenientes de Alegre, ES = L9 e Venda Nova do Imigrante, ES = L10, foram submetidas aos principais produtos fitossanitários utilizados na cultura do tomateiro, após serem multiplicadas em ovos de Anagasta kuehniella (Zeller. Os ovos desse hospedeiro foram tratados e oferecidos ao parasitismo decorridas 0, 24 e 48 horas após o tratamento, e mantidos em câmaras climáticas a 25 ± 2ºC, UR de 60 ± 10% e fotofase de 14 horas. Os inseticidas deltametrina, abamectin e metamidofós, independentemente da linhagem de T. pretiosum, reduziram a longevidade de fêmeas da geração maternal. Triflumuron, clorfluazuron, benomil, clorotalonil, Bacillus thuringiensis, mancozeb, dimetomorf, tebufenozide, teflubenzuron, acefato, pirimicarbe, iprodiona, metamidofós e ciromazina não afetaram a capacidade de parasitismo de T. pretiosum na geração F1, independentemente da origem da população, e não afetaram a porcentagem de emergência dos indivíduos da geração F2, das duas linhagens.Two Trichogramma pretiosum Riley, 1879 populations from Alegre ES = L9 and Venda Nova do Imigrante, ES = L10 (Brazil were treated with the main pesticides used on tomato crop after reared on Anagasta kuehniella (Zeller eggs. The eggs were treated and submitted to parasitism on 0, 24 and 48 hours and kept in climatic chambers at 25 ± 2 ºC, 60 ± 10% RH and 14 hours photophase. The longevity of T. pretiosum (mother females, independently of strain, was decreased for insecticides deltamethrin, abamectin and methamidophos. No influence was detected in the parasitism capacity in F1 generation of T. pretiosum with the products triflumuron, chlorfluazuron, benomyl, chlorotalonil, Bacillus thuringiensis, mancozeb, dimetomorf, tebufenozide, teflubenzuron, acefate, pirimicarb, iprodione, methamidophos and ciromazine, and these compounds did not effected the emergence in F2 generation of this parasitoid, independently of

AS MUITAS ÁGUAS DE UM RIO

Directory of Open Access Journals (Sweden)

Luciana Marino do Nascimento

2010-01-01

Full Text Available In This paper we shall show the dialogues between two productions historically distant, the short story “A Terceira Margem do Rio”, by Guimarães Rosa, and the music of Caetano Veloso and Milton Nascimento.

Sanitation and Civic Participation

Directory of Open Access Journals (Sweden)

José Antonio Peña Barreto

2016-08-01

Full Text Available This research is proposed in order to propose an action plan for environmental sanitation citizen participation in the "Manuela Sáenz" Concentrating National Basic School Parish Municipality City Bolivia Pedraza Barinas state. It is part of the qualitative approach in the form of participatory action research and supported by a narrative descriptive design. The selected scenario for performance of work was the Concentrating National School "Manuela Sáenz" key informants consist of 1 member of the community, 1 member of the community council and one teacher of the institution. The techniques used are observation and depth interview, using as instruments a field notebook and an interview script. For the presentation and analysis of results he was categorized, triangulated and theorized the information obtained, performing a thorough and detailed report on the integrated management of solid waste diagnosis. Subsequently, the proposal called Action Plan for environmental sanitation was developed with citizen participation in concentrated Manuela Saenz National Basic School. Then the proposal where participants expressed the view that activities allowed to obtain very important basic knowledge on environmental sanitation was run.

Puutumatu Riigiprokuratuur / Manuela Pihlap

Index Scriptorium Estoniae

Pihlap, Manuela

2009-01-01

President Toomas Hendrik Ilvese visiidi ajal Aserbaidžaani 2009. a. jaanuaris toimus Bakuus meeleavaldus. Meeleavaldajad nõudsid Eestis vahi all olevate Aserbaidžaani päritolu ettevõtjate vabastamist. Lisaks süüdistatakse Aserbaidžaanis Eesti riigiprokuröri Margus Kurmi rahanõudmises ja Eesti riiki seaduste rikkumises. Meeleavaldajad lubasid pöörduda Euroopa Nõukogu poole

Boletim Epidemiológico Observações: Vol. 5 (2016), Número Especial 8, Alimentação e Nutrição

OpenAIRE

Instituto Nacional de Saúde Doutor Ricardo Jorge

2016-01-01

Ficha técnica: Diretor: Fernando de Almeida; Editores:Carlos Matias Dias, Elvira Silvestre; Conselho Editorial Científico: Carlos Matias Dias, Manuela Cano, Jorge Machado, Manuela Caniça, Peter Jordan, Sílvia Viegas, Luciana Costa. Número Especial dedicado à Alimentação e Nutrição do Boletim Epidemiológico Observações. Observações é uma publicação científica do INSA, IP, que visa contribuir para o conhecimento da saúde da população, os fatores que a influenciam, a decisão e a intervenção e...

Human-Machine Collaborative Optimization via Apprenticeship Scheduling

Science.gov (United States)

2016-09-09

Air Force. Copyright c© 2017, Association for the Advancement of Artificial Intelligence (www.aaai.org). All rights reserved. tures of their problem... medical data mining: Comparisons of expert judgment and automatic approaches. In Proc. CBMS, 165– 170. Chernova, S., and Veloso, M. 2007. Confidence

Usalda, aga kontrolli / Manuela Pihlap

Index Scriptorium Estoniae

Pihlap, Manuela

2008-01-01

Uuest isikuandmete kaitse seadusest. Ilmunud ka Harju Ekspress 22. veeb. 2008, lk. 6 ; Meie Maa 26. veeb. 2008, lk. 2 ; Pärnu Postimees 28. veeb. 2008, lk. 15 ; LõunaLeht 28. veeb. 2008, lk. 4 ; Valgamaalane 28. veeb. 2008, lk. 2

Bioatividade de produtos fitossanitários utilizados na cultura do tomateiro (Lycopersicon esculentum Mill. a Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae nas gerações F1 e F2 Bioactivity of pesticides used in tomato (Lycopersicon esculentum Mill. crop to Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae in F1 and F2 generations

Directory of Open Access Journals (Sweden)

Geraldo Andrade Carvalho

2003-04-01

Full Text Available A bioatividade de dezoito produtos químicos utilizados no controle de pragas e doenças do tomateiro, sobre duas linhagens de Trichogramma pretiosum Riley, 1879 (L9=Alegre, ES e L10= Venda Nova do Imigrante, ES, nas gerações F1 e F2, foi investigada em laboratório. Ovos de Anagasta kuehniella (Zeller contendo o parasitóide em diferentes estágios de desenvolvimento (ovo-larva, pré-pupa e pupa foram tratados por meio de imersão nas respectivas caldas químicas. Os inseticidas triflumuron, clorfluazuron, deltametrina, Bacillus thuringiensis, lambdacialotrina, teflubenzuron, acefato, pirimicarb e ciromazina, e os fungicidas benomil, iprodiona, clorotalonil e dimetomorf, independente da linhagem, não reduziram a longevidade das fêmeas de T. pretiosum da geração F1. Os inseticidas abamectin, cartap, metamidofós e lambdacialotrina afetaram a razão sexual de indivíduos da geração F1, e não reduziram a taxa de emergência de parasitóides da F2, independente do estágio de desenvolvimento e da origem da população de T. pretiosum. Parasitóides de Venda Nova do Imigrante, ES (L10 mostraram-se mais susceptíveis que os de Alegre, ES (L9 aos efeitos dos compostos avaliados. De modo geral, a fase de pupa de T. pretiosum, independente da população, apresentou maior tolerância aos produtos testados. Recomenda-se a realização de novos testes para outras populações desse parasitóide que serão utilizadas no controle de pragas, pois podem responder de forma diversa aos produtos fitossanitários avaliados.The bioactivity of eighteen pesticides commonly used to pests and diseases control on tomato, in two strains of Trichogramma pretiosum Riley, 1879 (L9=Alegre, ES and L10= Venda Nova do Imigrante, ES, Brazil in F1 and F2 generations, was evaluated under laboratory conditions. The bioassays were conducted in a climatic chamber at 25 ± 2 ºC, 60 ± 10% RH and 14 hours of photophase. Eggs of Anagasta kuehniella (Zeller containing the

Desempenho de Trichogramma pretiosum Riley e T. exiguum Pinto & Platner (Hymenoptera: Trichogrammatidae submetidos a diferentes densidades de ovos de Plutella xylostella (Lepidoptera: Plutellidae

Directory of Open Access Journals (Sweden)

Pereira Fabricio Fagundes

2004-01-01

Full Text Available Este trabalho teve como objetivo avaliar o desempenho de Trichogramma pretiosum Riley e de Trichogramma exiguum Pinto & Platner submetidos a diferentes densidades de ovos de Plutella xylostella (L.. Para cada espécie, grupos compostos por uma, duas e quatro fêmeas do parasitóide, foram confinadas em tubos de vidro juntamente com 15, 30, 45 e 60 ovos de P. xylostella por 24h. A duração do ciclo (ovo-adulto foi uniforme e exatamente igual a nove dias, tanto para T. pretiosum como para T. exiguum. A porcentagem de parasitismo de T. pretiosum e T. exiguum mais elevada foi encontrada nas combinações de 15 ovos quatro fêmeas-1 e duas fêmeas 15 ovos-1, respectivamente. A viabilidade do parasitismo para T. pretiosum e T. exiguum não foi afetada pelas combinações de parasitóides e ovos para ambas as espécies. A razão sexual foi igual a um para T. pretiosum e variando de 0,6 a 0,8 para T. exiguum. O número de parasitóides emergidos por ovo, de modo geral, foi um. As maiores porcentagens de deformação foram de 33,9 e 17,5% dos descendentes para T. pretiosum e T. exiguum, nos tubos contendo quatro fêmeas para 15 ovos, respectivamente. A combinação mais indicada para T. pretiosum e T. exiguum foi uma fêmea 25 ovos-1 e duas fêmeas 15 ovos-1, respectivamente.

Ação de produtos naturais sobre a sobrevivência de Argyrotaenia sphaleropa (Meyrick (Lepidoptera: Tortricidae e seletividade de inseticidas utilizados na produção orgânica de videira sobre Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae Action of natural products on the survival of Argyrotaenia sphaleropa (Meyrick (Lepidoptera: Tortricidae and selectivity of insecticides used in the organic production of vine on Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae

Directory of Open Access Journals (Sweden)

Wilson José Morandi Filho

2006-08-01

Full Text Available Nesse trabalho, foi estudado o efeito de formulações comerciais de inseticidas, com ênfase para os produtos permitidos na produção orgânica (nim, piretro natural e extrato pirolenhoso para o controle de Argyrotaenia sphaleropa (Meyrick (Lepidoptera: Tortricidae e sua atuação sobre o parasitóide de ovos Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae, em laboratório. Os inseticidas Natuneem® (1500ppm de Azadirachta indica por litro e o extrato pirolenhoso (Biopirol 7 M®, nas dosagens de 250 e 500mL 100L-1, não foram eficientes no controle de A. sphaleropa quando aplicados sobre folhas de videira (Vitis sp. cultivar "Chardonnay", enquanto que o piretro natural (250 e 500mL 100L-1 resultou em mortalidade significativa de 77,65 e 85,88% dos insetos, respectivamente, 120 horas após a aplicação. O efeito secundário foi avaliado sobre adultos do parasitóide de ovos T. pretiosum, seguindo a metodologia da International Organization for Biological and Integrated Control (IOBC. Os inseticidas Natuneem® (500mL 100L-1, Biopirol 7 M® (500mL 100L-1 e Dipel DF® (100g 100L-1 foram inócuos (99% de redução no parasitismo, respectivamente, equivalendo-se ao efeito do fosforado Lebaycid 500® (100mL 100 L-1.This work was conducted to study the effect of commercial formulations of insecticides with emphasis on that allowed in the organic production (neem, natural piretro and pirolenhoso extract to control Argyrotaenia sphaleropa (Meyrick (Lepidoptera: Tortricidae and their performance on the egg parasitoid Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae adults. The insecticides Natuneem® (1500ppm of azadirachtin L-1 and the pirolenhoso extract (Biopirol 7 M® (250 and 500mL 100L-1 were not efficient in the control of A. sphaleropa when applied over grapevine leaves (Vitis sp. cultivate Chardonnay. Natural piretro (250 and 500mL 100L-1 resulted in a mortality of 77.65 and 85.88% of insects, respectively 120 hours

Impact of insecticides used to control Spodoptera frugiperda (J.E. Smith in corn on survival, sex ratio, and reproduction of Trichogramma pretiosum Riley offspring

Directory of Open Access Journals (Sweden)

Jander R Souza

2013-06-01

Full Text Available Corn (Zea mays L. is cultivated in large areas and considered one of the world's major cereal crops. There are several arthropod pests that can reduce its production such as the fall armyworm, Spodoptera frugiperda (J.E. Smith (Lep.: Noctuidae, which is considered to be the main pest for corn. Fall armyworm is primarily controlled by insecticides. The use of biological control agents to manage this pest is growing with an emphasis on the egg parasitoid Trichogramma pretiosum Riley (Hym.: Trichogrammatidae. Thus, the aim of this research was to evaluate the impact of the following insecticides (g ai L-1 beta-cypermethrin (0.03, chlorfenapyr (0.60, chlorpyrifos (0.96, spinosad (0.16, etofenprox (0.10, triflumuron (0.08, alfa-cypermethrin/teflubenzuron (0.0425/0.0425, and lambda-cyhalothrin/thiamethoxam (0.11/0.083 on survival, sex ratio, reproduction, and T. pretiosum offspring. Distilled water was used as a control. Commercial insecticide formulations were diluted in distilled water. Bioassays used Anagasta kuehniella eggs treated with insecticides which were afterwards exposed to parasitism. Bioassays were conducted under controlled conditions at 25 ± 2 °C, 70 ± 10% RH, and 12:12 h photoperiod. Alfa-cypermethrin/teflubenzuron, beta-cypermethrin, chlorpyrifos, chlorfenapyr, spinosad, etofenprox, and lambda-cyhalothrin/thiamethoxam reduced parasitism capacity of maternal generation females as well as the percentage of insect emergence from the F1 generation. Only triflumuron was selective for T. pretiosum and can be recommended along with this parasitoid in fall armyworm management programs in corn.

Elis Regina e a música televisual brasileira

Directory of Open Access Journals (Sweden)

Alexandre Rocha da Silva

2008-11-01

Full Text Available Este artigo discute o modo pelo qual a televisão brasileira construiu Elis Regina como ator televisivo. Parte da idéia proposta por Augusto de Campos e Caetano Veloso de que Elis foi a primeira cantora efetivamente produzida pela televisão brasileira para investigar semioticamente o que aqui se denomina mundo televisivo. Este estudo aborda, ainda, as articulações entre gêneros, subgêneros e formatos como níveis que tecem as malhas do propriamente televisivo. Palavras-chave: mundos televisivos; audiovisualidades; imagem-música; semiótica; Elis Regina Abstract Elis Regina and Brazilian televised music - This paper discusses how Brazilian television built singer Elis Regina into a television actress. Starting from the idea proposed by Augusto de Campos and Caetano Veloso that Elis was the first singer effectively produced by Brazilian television, this paper makes a semiotic investigation into what is known as the world of television. This study also discusses the articulations between genres, subgenres and formats as levels that weave the mesh of television itself. Keywords: world of television; audiovisualities; image-music; semiotics; Elis Regina

"Kolossi" autor pole Goya

Index Scriptorium Estoniae

2009-01-01

Hispaania maalikunstniku Francisco de Goya kuulsaim töö "Koloss" kuulutati Madridi Prado muuseumi uurijate poolt Goya assistendi tööks. Muuseumi ekspert Manuela Mena uuris maali röntgenkiirte abil ning avastas kulunud initsiaalid AJ

A comparison of micropore membrane inlet mass spectrometry-derived pulmonary shunt measurement with Riley shunt in a porcine model.

Science.gov (United States)

Duenges, Bastian; Vogt, Andreas; Bodenstein, Marc; Wang, Hemei; Böhme, Stefan; Röhrig, Bernd; Baumgardner, James E; Markstaller, Klaus

2009-12-01

The multiple inert gas elimination technique was developed to measure shunt and the ratio of alveolar ventilation to simultaneous alveolar capillary blood flow in any part of the lung (V(A)'/Q') distributions. Micropore membrane inlet mass spectrometry (MMIMS), instead of gas chromatography, has been introduced for inert gas measurement and shunt determination in a rabbit lung model. However, agreement with a frequently used and accepted method for quantifying deficits in arterial oxygenation has not been established. We compared MMIMS-derived shunt (M-S) as a fraction of total cardiac output (CO) with Riley shunt (R-S) derived from the R-S formula in a porcine lung injury model. To allow a broad variance of atelectasis and therefore shunt fraction, 8 sham animals did not receive lavage, and 8 animals were treated by lung lavages with 30 mL/kg warmed lactated Ringer's solution as follows: 2 animals were lavaged once, 5 animals twice, and 1 animal 3 times. Variables were recorded at baseline and twice after induction of lung injury (T1 and T2). Retention data of sulfur hexafluoride, krypton, desflurane, enflurane, diethyl ether, and acetone were analyzed by MMIMS, and M-S was derived using a known algorithm for the multiple inert gas elimination technique. Standard formulas were used for the calculation of R-S. Forty-four pairs of M-S and R-S were recorded. M-S ranged from 0.1% to 35.4% and R-S from 3.7% to 62.1%. M-S showed a correlation with R-S described by linear regression: M-S = -4.26 + 0.59 x R-S (r(2) = 0.83). M-S was on average lower than R-S (mean = -15.0% CO, sd = 6.5% CO, and median = -15.1), with lower and upper limits of agreement of -28.0% and -2.0%, respectively. The lower and upper limits of the 95% confidence intervals were -17.0 and -13.1 (P < 0.001, Student's t-test). Shunt derived from MMIMS inert gas retention data correlated well with R-S during breathing of oxygen. Shunt as derived by MMIMS was generally less than R-S.

Vidas na Raia: prostituçâo feminina em regiôes de fronteira

Directory of Open Access Journals (Sweden)

Ana Isabel Blanco García

2008-12-01

Full Text Available Reseña Vidas na Raia: prostituçâo feminina em regiôes de fronteira. Manuela Ribeiro, Manuel Carlos Silva, Johanna Schouten, Fernando B. Riveiro, Octávio Sacramento. Porto: Afrontamento, 2007

Kontsert

Index Scriptorium Estoniae

2007-01-01

Pianist Manuela Gouveia Portugali päevade raames 2. nov., Tartu I Muusikakooli 63. aastapäeva kontsert 4. nov., klaveriõhtute sarja "Pianissimo" kontsert 6. nov. ja MTÜ Puhkpillisõprade Selts 10. nov. TÜ aulas, kontsert "Farinelli" 26. okt. Vanemuise kontserdimajas

Disainikaart : Brasiilia

Index Scriptorium Estoniae

2008-01-01

Oscar Niemeyeri loodud ebamaiste skulpturaalsete vormidega hooned. Isay Weinfeldi, Sergio Rodrigues'e, Paulo Mendes da Rocha, Lucio Costa arhitektuurialane looming. Tootedisaini iseloomustab ehe materjalikasutus ja loodusressursse säästev disain, mida esindab Carlos Motta, Jose Zanine Caldas'e ja Joaquim Tenreiro disainitud mööbel.Modernistlik maastikuarhitekt Roberto Burle Marxi kujundatud park Ibirapuera, kunstnike Gilberto & Elisabethi puhas ja valge keraamika ning helilooja Caetano Veloso mitmekülgne kunstilooming

Toward Understanding the Fanaroff-Riley Dichotomy in Radio Source Morphology and Power

Science.gov (United States)

Baum, Stefi A.; Zirbel, Esther L.; O'Dea, Christopher P.

1995-09-01

In Paper I we presented the results of a study of the interrelationships between host galaxy magnitude, optical line luminosity, and radio luminosity in a large sample of Fanaroff-Riley classes 1 and 2 (FR 1 and FR 2) radio galaxies. We report several important differences between the FR 1 and FR 2 radio galaxies. At the same host galaxy magnitude or radio luminosity, the FR 2's produce substantially more optical line emission (by roughly an order of magnitude or more) than do FR 1's. Similarly, FR 2 sources produce orders of magnitude more line luminosity than do radio-quiet galaxies of the same optical magnitude, while FR 1 sources and radio-quiet galaxies of the same optical magnitude produce similar line luminosities. Combining these results with previous results from the literature, we conclude that while the emission-line gas in the FR 2's is indeed photoionized by a nuclear UV continuum source from the AGN, the emission-line gas in the FR 1's may be energized predominantly by processes associated with the host galaxy itself. The apparent lack of a strong UV continuum source from the central engine in FR 1 sources can be understood in two different ways. In the first scenario, FR l's are much more efficient at covering jet bulk kinetic energy into radio luminosity than FR 2's, such that an FR 1 has a much lower bolometric AGN luminosity (hence nuclear UV continuum source) than does an FR 2 of the same radio luminosity. We discuss the pros and cons of this model and conclude that the efficiency differences needed between FR 2 and FR 1 radio galaxies are quite large and may lead to difficulties with the interpretation since it would suggest that FR 2 radio source deposit very large amounts of kinetic energy into the ISM Intracluster Medium. However, this interpretation remains viable. Alternatively, it may be that the AGNs in FR 1 sources simply produce far less radiant UV energy than do those in FR 2 sources. That is, FR 1 sources may funnel a higher fraction

Arithmetic Procedures are Induced from Examples.

Science.gov (United States)

1985-08-13

extend the procedures when necessary, Gelman and her colleagues (Gelman & Gallistel . 1978. Greeno. Riley. & Gelman, 1984) used tests based on debugging...151-157. Gelman. R. & Gallistel , C. R. (1978). The childs understanding of number. Cambridge. MA: Harvard University Press. Greeno. J. G.. Riley. M

76 FR 12227 - Federal Property Suitable as Facilities To Assist the Homeless

Science.gov (United States)

2011-03-04

...: Excess GSA Number: Comments: 2024 sq. ft. sq. ft., concrete, poor condition, off-site use only Bldg..., pres. of asbestos clean-up required of contamination, use of respirator required by those entering... (oil storage bldg.--training ctr.), repairs needed for buildings 5 Bldgs. Fort Riley Fort Riley KS...

Com quantos paus se faz uma canoa?

Directory of Open Access Journals (Sweden)

Mariângela Andrade Paraizo

1996-10-01

Full Text Available Neste texto, pretendo trabalhar com o conto /tA terceira margem do rio", no contexto do livro Primeiras Estórias, de João Guimarães Rosa, confrontando-o com ofilme de Nelson Pereira dos Santos e a música de Milton Nascimento e Caetano Veloso, ambos com o mesmo nome. Os três trabalhos nos mostram o efeito de repetição no processo narrativo.

Home and abroad: vets' role in dealing with rabies.

Science.gov (United States)

Herrera, Manuela

2014-11-29

Manuela Herrera reports on a session at the BVA Congress which discussed the contributions that vets can make to tackling rabies, and how the profession can be at the forefront of a One Health approach to saving the lives of animals and people. British Veterinary Association.

Disease: H01377 [KEGG MEDICUS

Lifescience Database Archive (English)

Full Text Available H01377 Mitchell-Riley syndrome Mitchell-Riley syndrome is a neonatal diabetes synd...rome that involves abnormalities of the anterior gut as well as diabetes. Patients with this syndrome are ty...aniels M, Liu X, Paz VP, Ye H, Highland HM, Hanis CL, Greeley SA ... TITLE ... Neonatal diabetes, gallbladder

Recensión: Acceso a la justicia y conflictos intrafamiliares. Marginación y pobreza en el ámbito judicial

Directory of Open Access Journals (Sweden)

Mauro Cristeche

2014-06-01

Full Text Available Libro Coordinado por Manuela G González, resultado del proyecto PICT-O 2010 (Agencia Nacional de Promoción Científica y Tecnológica- Argentina sobre conflictos intrafamiliares y acceso a la justicia en 3 departamentos judiciales de la provincia de Buenos Aires.

Journal of Biosciences | Indian Academy of Sciences

Indian Academy of Sciences (India)

Volume 42 Issue 1 March 2017 pp 81-89 Article. Genetic architecture of seed longevity in bread wheat ( Triticum aestivum L.) MIAN ABDUR REHMAN ARIF MANUELA NAGEL ULRIKE LOHWASSER ANDREAS BÖRNER · More Details Abstract Fulltext PDF. The deterioration in the quality of ex situ conserved seed over time ...

Math in Riley's World

Science.gov (United States)

Kritzer, Karen L.

2011-01-01

In their overview for the prekindergarten-grade 2 Standards, the National Council for Teachers of Mathematics (NCTM) documents the value of early mathematical environments. During these early years, young children are building beliefs about what mathematics is and learning about themselves as early mathematicians. What young children learn about…

Climate Change Mitigation: Can the U.S. Intelligence Community Help?

Science.gov (United States)

2013-06-01

will be key to 168 Fathali M. Moghaddam and Cara Riley, “Toward a Cultural Theory of Rights and...in question was the China National Nuclear Corporation (CNNC), which was engaged in business dealings with Westinghouse Electric Corporation...Williamson. Oxford: Oxford University Press, 1990. Moghaddam, Fathali M. and Cara Riley. “Toward a Cultural Theory of Rights and Duties in Human

BANQUETS, OUTMODED DELICACIES

Directory of Open Access Journals (Sweden)

Luis Maffei

2014-04-01

Full Text Available Os Lusíadas in its Chant VI presents some of the central issues of the poem. One of them relates to a series of developments that advertise themselves, in that point on the narrative to explode in future moments, from dicho­tomies that oppose, apparently, pleasure with food vs. sacrificial value, for instance. The delicacies and banquets are points of departure and arrival for much of this discussion, that envolves Veloso, Venus, Bacchus, wine, love and so on.

An Information Processing Analysis of the Function of Conceptual Understanding in the Learning of Arithmetic Procedures

Science.gov (United States)

1988-08-01

by Gelman and co-workers with respect to counting (Gelman & Gallistel , 1978; Gelman & Meck, 1983, 1987; Gelman, Mack, & Merkin, 1986; Greeno, Riley...Gelman, 1984). Gelman and Gallistel (1978) formulated a set of princples that determine the correct procedure for counting. The three most Important...Gelman & Gallistel , 1978). Greeno, Riley, and Gelman (1984) and Smith, Greeno, and Vitolo (in press) have proposed a theoretical analysis that shows how

Improving work-life balance: what can employers and employees do?

Science.gov (United States)

Herrera, Manuela

2013-12-14

Effective time management can play a big part in reducing stress for busy vets, but too often miscommunication between practice employers and employees can make it harder to achieve a good work-life balance. Manuela Herrera reports on a session at the BVA Congress which considered what vets can do to facilitate better time management in practice.

Assessing the need for future veterinary surgeons.

Science.gov (United States)

Herrera, Manuela

2013-12-21

While some in the profession are concerned about a possible 'overproduction' of vets, others argue that more might be needed to help meet current and future challenges. A debate at this year's BVA Congress tackled the question of how many vets are required, while considering how their unique skills might be more widely applied. Manuela Herrera reports.

Efficient Symbolic Task Planning for Multiple Mobile Robots

Science.gov (United States)

2016-12-13

shows a map of the testing environment. S1 and S2 ( green rectangles) are the initial positions of two robots, and G1 and G2 (red ellipses) show their...intelligence, pages 1594–1597. AAAI Press, 2008. [25] Mausam and D. S. Weld . Planning with durative actions in stochastic domains. J. Artif. Intell. Res...JAIR), 31:33–82, 2008. [26] D. McDermott, M. Ghallab, A. Howe, C. Knoblock, A. Ram, M. Veloso, D. Weld , and D. Wilkins. Pddl-the planning domain

Lipopolysaccharide Antigens of Pseudomonas aeruginosa and Design of Novel Vaccines.

Science.gov (United States)

1987-09-01

Studies on the Lipopolysaccharide Antigens of Seven Immunotypes of P a_ n , SELAQ, Proc. 3 VL Seminario Latinoamericano J1 Quimica , pp. 143-159 (1979). 7...Bioolymers, 19 (1980) 1801-1814. 74" , 8. Derek Horton and David A. Riley, Phosphorus-31 Nuclear Magnetic Resonance Spectroscopy of Lipopolysaccharides...Amer. Chem. Soc., 87 (1965), 1345-1353. 40. D. Horton and D. A. Riley, "Phosphorus-31 Nuclear Magnetic Resonance Spectroscopy of Lipopolysaccharides

Electron Microscopy of Intracellular Protozoa.

Science.gov (United States)

1979-08-15

Mannaberg (1905), Craig (1909), Marchoux (1926), Taliaferro and Mulligan (1937), and Maegraith (1966). These reviews contain detailed gross and microscopic...correlated with biochemical changes such as abnormal respiration and oxidative-phosphorylation (Riley and Deegan , 1960; Riley and Maegraith, 1962). Hlowever...Institute of Pathology, Washington, 1). C. pp. 273-283. * Craig , C. F., 1909. The Malarial Fevers. New York. pp. 477. Daroff, R.B., Deller, J.J. Jr., Kastl

The Chip-Scale Atomic Clock - Prototype Evaluation

Science.gov (United States)

2007-11-01

39th Annual Precise Time and Time Interval (PTTI) Meeting THE CHIP-SCALE ATOMIC CLOCK – PROTOTYPE EVALUATION R. Lutwak *, A. Rashed...been supported by the Defense Advanced Research Projects Agency, Contract # NBCHC020050. REFERENCES [1] R. Lutwak , D. Emmons, W. Riley, and...D.C.), pp. 539-550. [2] R. Lutwak , D. Emmons, T. English, W. Riley, A. Duwel, M. Varghese, D. K. Serkland, and G. M. Peake, 2004, “The Chip-Scale

THE NORTHERN BORDER A FORGOTTEN NATIONAL SECURITY THREAT

Science.gov (United States)

2017-04-06

Deputy Director of the DEA, Jack Riley.70 However, they have been seen recently expanding their physical and permanent presence in Canada. In 2015...balanced approach. Notes 1 Jane A. Bullock, George D. Haddow, and Damon P. Coppola, Homeland Security: The Essentials (Waltham, MA : Butterworth -Heinemann...Michoacán Family (La Familia Michoacána or LFM), Knights Templar (Los Caballeros Templarios or LCT), and Los Zetas.” Jack Riley, Acting Deputy

Hamartomatous polyposis syndromes

DEFF Research Database (Denmark)

Jelsig, Anne Marie; Qvist, Niels; Brusgaard, Klaus

2014-01-01

Hamartomatous Polyposis Syndromes (HPS) are genetic syndromes, which include Peutz-Jeghers syndrome, Juvenile polyposis syndrome, PTEN hamartoma tumour syndrome (Cowden Syndrom, Bannayan-Riley-Ruvalcaba and Proteus Syndrome) as well as hereditary mixed polyposis syndrome. Other syndromes such as ......Hamartomatous Polyposis Syndromes (HPS) are genetic syndromes, which include Peutz-Jeghers syndrome, Juvenile polyposis syndrome, PTEN hamartoma tumour syndrome (Cowden Syndrom, Bannayan-Riley-Ruvalcaba and Proteus Syndrome) as well as hereditary mixed polyposis syndrome. Other syndromes...

High-Density Magnetic Recording and Integrated Magneto-Optics: Materials and Devices; Symposium Held in San Francisco, California, on April 12-16 1998

Science.gov (United States)

1998-04-01

Veloso1,2, P. P. Freitas1,2, J. Fernandes3, M. Ferreira3 ’instituto de Engenharia de Sistemas e Computadores (INESC), R. Alves Redol 9, 1000 Lisboa...Freitasa’b, T.T. Galväoab, JJ. Sun", V. Soares", A. Klingc’d, M.F. da Silva’, and J.C. Soarescd ’Institute de Engenharia de Sistemas e Computadores (INESC...in direction occurs can be very long. This paper presents a theory behind this decay behavior, and a companion paper [8] shows that these

The Chip-Scale Atomic Clock - Low-Power Physics Package

Science.gov (United States)

2004-12-01

36th Annual Precise Time and Time Interval (PTTI) Meeting 339 THE CHIP-SCALE ATOMIC CLOCK – LOW-POWER PHYSICS PACKAGE R. Lutwak ...pdf/documents/ds-x72.pdf [2] R. Lutwak , D. Emmons, W. Riley, and R. M. Garvey, 2003, “The Chip-Scale Atomic Clock – Coherent Population Trapping vs...2002, Reston, Virginia, USA (U.S. Naval Observatory, Washington, D.C.), pp. 539-550. [3] R. Lutwak , D. Emmons, T. English, and W. Riley, 2004

Guerra y estado, un binomio indisoluble en la España de los Reyes Católicos

OpenAIRE

Velasco de Castro, Rocío

2016-01-01

Reseña de: Martínez Peñas, Leandro y Manuela Fernández Rodríguez, La guerra y el nacimiento del Estado Moderno. Consecuencias jurídicas e institucionales de los conflictos bélicos en el reinado de los Reyes Católicos, Valladolid, Asociación Veritas para el estudio de la Historia, el Derecho y las Instituciones, 2014, 485 pp

Aerodynamics of Rotorcraft (L’Aerodynamique des Aeronefs a Voilure Tournante)

Science.gov (United States)

1990-11-01

appreciate wether or not the airfoil drag was liable to differ significantly from the 2-D value imposed In the CAMRAD calculation. Rotor blade boundary layer...0079, 1986 24. P.G. Wilby, M.J. Riley, Judith Miller, "Some unsteady effects on helicopter rotors." 7th European Rotorcraft and Powered Lift Forum...1981 W b 9-20 25. H.J. Riley, Judith Miller, "Pressure distributions on a helicopter swept tip from flight tests and from calculations", Paper No 9, 9th

Võrdsed õigused ja kohustused ka riigikogu liikmetele / Manuela Pihlap

Index Scriptorium Estoniae

Pihlap, Manuela

2007-01-01

ERL-i teabejuhi sõnul on selge, et tegelikkuses Riigikogu liikmed leiavad aja puhkuseks, kuigi seadus seda ette ei näe. Ta peab õigemaks, et seadused viidaks reaalse eluga kooskõlla ja parlamendiliikmete õigus puhkusele tuleneks seadusest

Enhancing Microbolometer Performance at Terahertz Frequencies with Metamaterial Absorbers

Science.gov (United States)

2013-09-01

inquiry about the school and ensuring that I was actually hired on time. Cyndy Poenie and Manuela Drury helped me figure out many of the forms and...dielectric is also removed as illustrated in Figure 4(a). The effect of over-etch can be accounted for in simulations by simply adding to the geometry...component parallel to the surface. Of course, this does not take into account the boundary conditions or the coupling between squares. Figure 10(a) shows

Garaaž ja kuup : erinevad esitajad / Siram

Index Scriptorium Estoniae

Siram, pseud., 1968-

2005-01-01

30. VI-30. VIII Pärnus Rael Artel Gallery (kuraator Rael Artel) näitusepaigas Sütevaka humanitaargümnaasiumi garaazhis toimunud näitustest, näitustega kaasnenud tegevuskunsti programmist. Jaan Evarti näituse "Erinevad esitajad" ja Teo Spilleri kunstiprojekti avamisel osales diskor Aivar Tõnso. Tanja Muravskaja fotonäitusega "Welcome to London" kaasnenud Anu Vahtra projektist. Manuela Ribadeneira ja Paula Roushi koostööprojektist "Space Protocol". Rühmituse FLY näitusest "Must kohver"

Motor performance of preschool children

OpenAIRE

Słonka Karina; Dyas Manuela; Słonka Tadeusz; Szurmik Tomasz

2017-01-01

Słonka Karina, Dyas Manuela, Słonka Tadeusz, Szurmik Tomasz. Motor performance of preschool children. Journal of Education, Health and Sport. 2017;7(8):1308-1323. eISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.1045272 http://ojs.ukw.edu.pl/index.php/johs/article/view/5028 https://pbn.nauka.gov.pl/sedno-webapp/works/836989 The journal has had 7 points in Ministry of Science and Higher Education parametric evaluation. Part B item 1223 (26.01.2017...

Sangre, intriga y materialismo dialéctico: notas sobre el teatro policiaco y de contraespionaje cubano

Directory of Open Access Journals (Sweden)

Gallardo Saborido, Emilio José

2008-12-01

Full Text Available This essay intends to offer a first approach to some works that have been rarely taken into account by literary criticism: Cuban crime and contraspying theatre. These texts were mainly produced in the 70s and early 80s due to the success of the novels dealing with the same topics. They clearly show the link between literature and ideology that was the core of the an important part of Cuban cultural production of the period. Some plays are specially dealt with Ha muerto una mujer, Ernesto y Aquí del G-2 soy yo by Gerardo Fernández García and Crimen en Noche de máscaras, by Antonio Veloso y Rodolfo Pérez Valero.

Esta contribución pretende ofrecer un primer acercamiento a un corpus que ha sido escasamente considerado por la crítica: la producción dramática cubana policiaca o de contraespionaje. Nacidos al calor del éxito de la narrativa y la novela, estos textos se produjeron básicamente a lo largo de la década de 1970 y principios de la de 1980. En ellos se aprecia la imbricación entre ideología y literatura que caracterizó a buena parte de la producción cultural cubana del periodo mencionado. Se presta especial atención a los dramas Ha muerto una mujer, Ernesto y Aquí del G-2 soy yo (todos ellos de Gerardo Fernández García y a Crimen en Noche de máscaras, obra de Antonio Veloso y Rodolfo Pérez Valero.

La música y otras artes: una revisión histórica

Directory of Open Access Journals (Sweden)

Alberto Carlos Souza

2013-06-01

Full Text Available Este estudio buscó revisitar a las dos concepciones del Arte – pedagógica y reflexiva -, forjadas a lo largo de la Historia y su relación con el pensamiento estético brasilero de resistencia. A partir de la década de los 60, tal pensamiento atribuyo una fidelidad pedagogía al Arte, insertando la tarea de critica social y política de participación emancipatoria humana: en este escenario se destacó el Teatro del Oprimido, el Cine Nuevo y la música de protesta de Chico Buarque, Caetano Veloso, Gilberto Gil y Milton Nascimento, entre otros. Palabras-clave: Música Popular Brasilera; Historia; Tendencias.

Nacionalismo musical e “invasão cultural” na linha evolutiva da Música Popular Brasileira

Directory of Open Access Journals (Sweden)

Emília Saraiva Nery

2015-05-01

Full Text Available O trabalho mostra a objetivação histórica do conceito de linha evolutiva na Música Popular Brasileira, a partir de uma situação dos debates sobre o ser da MPB entre os meados da década de 1960 e por toda a década de 1970. Assim sendo, trata-se de um estudo sobre as tensões no campo da música brasileira a partir da noção de “linha evolutiva na MPB”, formulada por Caetano Veloso, em meados da década de 1960 e que, desde então, passou a ser um significativo parâmetro para se pensar a MPB.

Gaze stability of observers watching Op Art pictures.

Science.gov (United States)

Zanker, Johannes M; Doyle, Melanie; Robin, Walker

2003-01-01

It has been the matter of some debate why we can experience vivid dynamic illusions when looking at static pictures composed from simple black and white patterns. The impression of illusory motion is particularly strong when viewing some of the works of 'Op Artists, such as Bridget Riley's painting Fall. Explanations of the illusory motion have ranged from retinal to cortical mechanisms, and an important role has been attributed to eye movements. To assess the possible contribution of eye movements to the illusory-motion percept we studied the strength of the illusion under different viewing conditions, and analysed the gaze stability of observers viewing the Riley painting and control patterns that do not produce the illusion. Whereas the illusion was reduced, but not abolished, when watching the painting through a pinhole, which reduces the effects of accommodation, it was not perceived in flash afterimages, suggesting an important role for eye movements in generating the illusion for this image. Recordings of eye movements revealed an abundance of small involuntary saccades when looking at the Riley pattern, despite the fact that gaze was kept within the dedicated fixation region. The frequency and particular characteristics of these rapid eye movements can vary considerably between different observers, but, although there was a tendency for gaze stability to deteriorate while viewing a Riley painting, there was no significant difference in saccade frequency between the stimulus and control patterns. Theoretical considerations indicate that such small image displacements can generate patterns of motion signals in a motion-detector network, which may serve as a simple and sufficient, but not necessarily exclusive, explanation for the illusion. Why such image displacements lead to perceptual results with a group of Op Art and similar patterns, but remain invisible for other stimuli, is discussed.

Heterotropías: espacios y escritura de mujeres en los últimos años del siglo XIX

OpenAIRE

Cuesta Vélez, Cecilia

2010-01-01

El siguiente trabajo pretende explorar en algunas escritoras de fi nales del siglo XIX la resignifi cación de coordenadas históricosociales esenciales del espacio en el cual se constituyen como sujetos emergentes a través de la escritura. Para tal fi n se toma en cuenta como géneros discursivos el ensayo y la novela. Las autoras tratadas son la argentina Juana Manuela Gorriti (1818-1892), Teresa González de Fanning (1836-1918), Mercedes Cabello de Carbonera (1845-1909), C...

La conservación y reutilización de los datos científicos en España. Informe del grupo de trabajo de buenas prácticas

OpenAIRE

Grupo de Trabajo de “Depósito y Gestión de datos en Acceso Abierto” del proyecto RECOLECTA

2012-01-01

Coordinación: Cristina González Copeiro (FECYT) Jordi Serrano-Muñoz (UPC). -- Participantes: Alicia García-García (UCV) Antonia Ferrer-Sapena (UPV) Fernanda Peset (UPV) Isabel Bernal (CSIC) Izaskun Lacunza (FECYT) Javier Gómez (UA) Luís Martínez-Uribe (Fundación Juan March) Manuela Palafox (UCM) Mercedes de Miguel Estévez (FECYT) Paz Fernández (Fundación Juan March) Pilar Rico Castro (FECYT) Ricard de la Vega (CESCA) Victoria Rasero (UC3M) E...

Inventory and Evaluation for Fort Riley Elementary School ( 104) and Custer Hill Elementary School ( 6344), Fort Riley, Kansas

Science.gov (United States)

2017-05-15

music room was built in 1960 at a cost of $53,607 for 1,500 square feet. It is not known when the additional 9,593 square feet were added to reach the...describes the major trends of public education in the state as an effort to equalize rural and urban schools in terms of support and qual- ity of...important national trends than with important state or local trends . There is no indication that the surveyed property was associated with the life of

Plaadid / Tiia Teder

Index Scriptorium Estoniae

Teder, Tiia, 1959-

2002-01-01

Uutest plaatidest "Chiled Classics", Rullnokad "Ruulib täiega", JJ72 "I To Sky", Styrenes "Terry Riley: In C", "Everything But The Girl", Ryan Adams "Demolition", Bon Jovi "Bounce", Slum Village "Trinity"

77 FR 43047 - Modoc County Resource Advisory Committee

Science.gov (United States)

2012-07-23

...; or Resource Advisory Coordinator, Stephen Riley at (530) 233-8705. SUPPLEMENTARY INFORMATION: The... also be set aside for public comments at the beginning of the meeting. Dated: July 16, 2012. Kimberly H...

An improved method for bivariate meta-analysis when within-study correlations are unknown.

Science.gov (United States)

Hong, Chuan; D Riley, Richard; Chen, Yong

2018-03-01

Multivariate meta-analysis, which jointly analyzes multiple and possibly correlated outcomes in a single analysis, is becoming increasingly popular in recent years. An attractive feature of the multivariate meta-analysis is its ability to account for the dependence between multiple estimates from the same study. However, standard inference procedures for multivariate meta-analysis require the knowledge of within-study correlations, which are usually unavailable. This limits standard inference approaches in practice. Riley et al proposed a working model and an overall synthesis correlation parameter to account for the marginal correlation between outcomes, where the only data needed are those required for a separate univariate random-effects meta-analysis. As within-study correlations are not required, the Riley method is applicable to a wide variety of evidence synthesis situations. However, the standard variance estimator of the Riley method is not entirely correct under many important settings. As a consequence, the coverage of a function of pooled estimates may not reach the nominal level even when the number of studies in the multivariate meta-analysis is large. In this paper, we improve the Riley method by proposing a robust variance estimator, which is asymptotically correct even when the model is misspecified (ie, when the likelihood function is incorrect). Simulation studies of a bivariate meta-analysis, in a variety of settings, show a function of pooled estimates has improved performance when using the proposed robust variance estimator. In terms of individual pooled estimates themselves, the standard variance estimator and robust variance estimator give similar results to the original method, with appropriate coverage. The proposed robust variance estimator performs well when the number of studies is relatively large. Therefore, we recommend the use of the robust method for meta-analyses with a relatively large number of studies (eg, m≥50). When the

Atmospheric fluidized bed combustion advanced system concepts applicable to small industrial and commercial markets. Topical report, Level 2

Energy Technology Data Exchange (ETDEWEB)

Ake, T.R.; Dixit, V.B.; Mongeon, R.K.

1992-09-01

As part of an overall strategy to promote FBC coal combustion and to improve the marketability of the eastern coals, the US Department of Energy`s Morgantown Energy Research Center awarded a three level contract to Riley Stoker Corporation to develop advanced Multi Solids Fluidized Bed (MSFB) boiler designs. The first level of this contract targeted the small package boiler (10,000--50,000 lb/hr steam) and industrial size boiler (75,000--150,000 lb/hr steam) markets. Two representative sizes, 30,000 lb/hr and 110,000 lb/hr of steam, were selected for the two categories for a detailed technical and economic evaluation. Technically, both the designs showed promise, however, the advanced industrial design was favored on economic considerations. It was thus selected for further study in the second level of the contract. Results of this Level-2 effort, presented in this report, consisted of testing the design concept in Riley`s 4.4 MBtu/hr pilot MSFB facility located at Riley Research Center in Worcester, Mass. The design and economics of the proof of concept facility developed in Level-1 of the contract were then revised in accordance with the findings of the pilot test program. A host site for commercial demonstration in Level-3 of the contract was also secured. It was determined that co-firing coal in combination with paper de-inking sludge will broaden the applicability of the design beyond conventional markets. International Paper (IP), the largest paper company in the world, is willing to participate in this part of the program. IP has offered its Hammermill operation at Lockhaven, Pa, site of a future paper de-inking plant, for the proof of concept installation. This plant will go in operation in 1994. It is recommended that METC proceed to the commercial demonstration of the design developed. The approach necessary to satisfy the needs of the customer while meeting the objectives of this program is presented along with a recommended plan of action.

Briti Nõukogu topeltlöök Rotermannis / Neeme Korv

Index Scriptorium Estoniae

Korv, Neeme, 1974-

2004-01-01

Inglise kunstniku Bridget Riley (s. 1931) op-kunsti näitusel Rotermanni soolalaos eksponeeritud 40 siiditrükki. Arhitektuurimuuseumi kolmanda korruse galeriis inglise fotograafi Yevonde Cumbersi (1893-1975) portreede ja reklaamfotode näitus

Kümne kriitiku portreed / Andres Kurg

Index Scriptorium Estoniae

Kurg, Andres, 1975-

2001-01-01

Raamatust: 10 x 10 : 10 critics, 100 architects / autorid: Haig Beck, Jackie Cooper, Aaron Betsky, Roger Connah, Kristin Feireiss, Jorge Glusberg, Tom Heneghan, Mohsen Mostafavi, Terence Riley, Jaime Salazar, Neil Spiller. London : Phaidon, 2001

Tortugas Reef Fish Census (CRCP)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — This is a long term data set collecting visual census transect data on reef fishes at staions located at Rileys Hump, Tortugas South Ecological Reservee.

76 FR 39812 - Modoc County Resource Advisory Committee

Science.gov (United States)

2011-07-07

... Coordinator, Stephen Riley at (530) 233-8705. SUPPLEMENTARY INFORMATION: The business meeting on July 11, 2011... meeting. Dated: June 23, 2011. Kimberly H. Anderson, Forest Supervisor. [FR Doc. 2011-17022 Filed 7-6-11...

Anaesthesia and familial dysautonomia with congenital insensitivity ...

African Journals Online (AJOL)

Adele

the HSANs are familial dysautonomia (Riley-Day syndrome or HSAN type III) and congenital ... sion, and excessive vagal reflexes. Central ... His skin was mottled, dry and pale. ... Eye protection is important since affected individuals lack tears,.

Diseño e implementación interfaz para móviles de paciente y de experto en sistema experto para la formulación de un programa de ejercicio físico a pacientes con obesidad y síndrome de apnea hipoapnea obstructiva del sueño.

OpenAIRE

Buitrago Romero, Jairo Alejandro

2018-01-01

En la Universidad Manuela Beltrán de Bogotá se adelanta un proyecto de Investigación que pretende "Determinar el efecto de la implementación de una herramienta tecnológica para un programa de ejercicio físico en población con obesidad y síndrome de apnea hipo apnea obstructiva del sueño (SAHOS)" dentro del cual se decidió la construcción de un Sistema Experto (SE). En este trabajo, se muestran las evidencias del diseño y construcción de las interfaces de usuario paciente de estudio y usuario ...

Una curiosa poesía de Alacrán Posada

Directory of Open Access Journals (Sweden)

José Restrepo Posada

1964-11-01

Full Text Available Don Benito de Posada Frade nació por los años de 1766 en San Pedro de Pría (provincia de Oviedo, Asturias y era hijo de don Juan Antonio Posada y de Manuela Frade. La antigua casa solariega de los Posadas, que existe en S. Pedro de Pría, con escudo de armas esculpido en el portal, tiene una inscripción que dice: "Redificó esta obra don lván Antonio Posada, año de 1758. Este don Juan Antonio era precisamente el padre de don Benito.

Phosphate Rock Dissolution and Availability in Some Soils of Semi ...

African Journals Online (AJOL)

Fiifi Baidoo

crop production with less expensive indigenous phosphate rocks (PRs) merits the attention of ... spectrophoto-meter at 712 nm following the procedure of Murphy & Riley (1962). Laboratory analyses ..... L. M. and Goh K. M. (1989). Effects of ...

PHYTOPLANKTON - WET WEIGHT and Other Data from UNKNOWN From Long Island Sound from 19520305 to 19591109 (NODC Accession 9000037)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains two files of nutrient and chlorophyll data for Long Island Sound collected from 1952-59. The data were originally collected by G.A. Riley,...

Pop-art s britanskim aktsentom / Aleksandra Manukjan

Index Scriptorium Estoniae

Manukjan, Aleksandra

2003-01-01

Rotermanni soolalaos avatakse briti popkunsti näitus AS IS WHEN. Näha graafikat aastatest 1961-1972 kahekümnelt briti kunstnikult. Nimed loetletud, esile toodud Ricard Hamilton, David Hockney, Allen Jones. Korraldab Briti Nõukogu, kuraator Richard Riley

Kas sugu on läbirääkimistel tähtis

Index Scriptorium Estoniae

2006-01-01

Ülevaade Harvard Business Schooli uudiskirja Working Knowledge 2006. aasta veebruari numbris ilmunud Dina W. Pradel'i, Hannah Riley Bowles'i ja Kathleen L. McGinn'i artiklist inimese soo mõjust läbirääkimistele

Influence of marginal highs on the accumulation of organic carbon along the continental slope off western India

Digital Repository Service at National Institute of Oceanography (India)

Rao, B.R.; Veerayya, M.

and 743E (after De Sousa, unpublished data). by the gasometric method using the &karbonate-bombe’ (Muller and Gastner, 1971) and organic carbon by the wet oxidation method (El Wakeel and Riley, 1957). Some samples from the upper continental slope, marginal...

A Consistent Wave Impact Load Model for Studying Structure, Equipment Ruggedness, Shock Isolation Seats, and Human Comfort in Small High Speed Craft

Science.gov (United States)

2016-11-01

Carderock Division for overall management of wave slam phenomenology and craft motion mechanics investigations. During different periods of the...approach to transition this definition to an equivalent static acceleration, Riley and Coats (2012). The first assumption is that the vertical

Pediatric Palliative Care: A Personal Story

Medline Plus

Full Text Available ... views 12:07 The Ugly Truth of Pediatric Cancer - Duration: 5:21. KidsCancerChannel 64,186 views 5: ... 24. RileyKidsVideo 216,780 views 4:24 Childhood Cancer: Palliative Care - Duration: 3:29. American Cancer Society ...

Pediatric Palliative Care: A Personal Story

Medline Plus

Full Text Available ... views 12:07 The Ugly Truth of Pediatric Cancer - Duration: 5:21. KidsCancerChannel 63,703 views 5: ... 24. RileyKidsVideo 210,660 views 4:24 Teen Cancer Stories | UCLA Daltrey/Townshend Teen & Young Adult Cancer ...

Pediatric Palliative Care: A Personal Story

Medline Plus

Full Text Available ... views 13:34 The Ugly Truth of Pediatric Cancer - Duration: 5:21. KidsCancerChannel 64,137 views 5: ... 24. RileyKidsVideo 216,139 views 4:24 Childhood Cancer: Palliative Care - Duration: 3:29. American Cancer Society ...

Association of germline mutation in the PTEN tumour suppressor gene and Proteus and Proteus-like syndromes

NARCIS (Netherlands)

Zhou, X.; Hampel, H.; Thiele, H.; Gorlin, R. J.; Hennekam, R. C.; Parisi, M.; Winter, R. M.; Eng, C.

2001-01-01

The molecular aetiology of Proteus syndrome (PS) remains elusive. Germline mutations in PTEN cause Cowden syndrome and Bannayan-Riley-Ruvalcaba syndrome, which are hereditary hamartoma syndromes. Some features-eg, macrocephaly, lipomatosis, and vascular malformations-can be seen in all three

Luxury and innovation: Towards an evaluative framework | Riley ...

African Journals Online (AJOL)

... luxury to argue that it is has been, and continues to be, a driver of innovation in the tourism and hospitality industries. In examining the relationship between creativity and innovation, the paper identifies four paradoxes which, it argues, are embedded in the decision-making processes that create new objects and services.

Luxury and innovation: Towards an evaluative framework | Riley ...

African Journals Online (AJOL)

Research in Hospitality Management. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 5, No 2 (2015) >. Log in or Register to get access to full text downloads.

Acoustical Environment of Three Stations at Rileys Hump

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Passive acoustic recorders were deployed to record acoustic signals over the time span of two years, and the data analyzed for the existence of known spawning sounds...

Trace metal levels in nearshore sediments close to industrial discharges off Cuddalore (Bay of Bengal)

Digital Repository Service at National Institute of Oceanography (India)

Joseph, T.; Balachandran, K.K.; Nair, M.; Das, V.K.; Nair, K.K.C.; Paimpillii, J.S.

by back titration with ferrous ammonium sulphate (EI Wakeel and Riley. 1957). Sediments, dried and finely powdered, were digested in Teflon™ (trifluoroethylene) bomb using aquaregia hydrofluric acid mixture at 90°C for 2 hours, cooled and made up to 50 m...

Phosphorus fractionation and crop performance on an alfisol ...

African Journals Online (AJOL)

SERVER

2007-08-20

Aug 20, 2007 ... acidified ammonium persulphate oxidation (Environmental Protection. Agency, 1971), and analyzed for total P. Inorganic phosphate in the extracts was determined colorimetrically with the molybdate-ascorbic acid procedure (Murphy and Riley, 1962). Organic P was calculated as the difference between ...

The Family Adaptation Model: A Life Course Perspective

Science.gov (United States)

1990-02-01

more general constructs of self esteem ( Coopersmith , 1967; Lawler, 1973; Rosenberg, 1965), locus of control, (Rotter, 1966), and situational mastery...Riley (Ed.), Aging from birth to death. Boulder, C: Westview Press. Coopersmith , S. (1967). The antecedents of self-esteem. San Francisco: Freeman

Prevalence of Tuberculosis and Treatment Outcomes of Patients ...

African Journals Online (AJOL)

2018-05-01

May 1, 2018 ... Yonas A. et al. ... North Shoa Ethiopia. Ethiop J Health Sci.2017;28(3):347. ... Berihun, et al . This is an ... RESULTS: A total of 162 patients with tuberculosis were registered ..... Ribeiro ML, Reis-Santos B, Riley LW, Maciel. EL.

Work Integrated Learning in Higher Education: partnerships: a continuing evolution.

Directory of Open Access Journals (Sweden)

PH vd Westhuizen

2014-01-01

Full Text Available The aim of this paper is to examine the use of Work Integrated Learning (WIL in higher education and identify the role industry plays in the need for educated workers and citizens who can meet the challenges of a new world economy. WIL allows students to acquire essential practical skills through exposure to the real world. Industry has always been the strong link in this necessary and appropriate instructional component of higher education. A qualitative approach was used in this study on a sample of second level students who participated in a WIL programme at one specific service provider. WIL education in the context of this paper is defined as a unique form of education, which integrates classroom study with, planned, and supervised WIL in the private and public sector (Arnold and Nicholson, 1991; Andrisari and Nestle, 1976. This study was conducted by second year students, (n=37 finishing a 6 months WIL component in industry. The implications of these findings for career development are discussed. In recent years, there has been an increase in research that examines careers and career development in the hospitality industry (Guerrier, 1987; Riley and Turam, 1989; Baum, 1989; Williams and Hunter, 1992; Antil, 1984; Ross, 1995. Some of this research has focused on issues relating to career paths and career development (Riley and Ladkin, 1984; Ladkin and Riley, 1996. A key issue in this research has been to attempt to determine the various factors which influence length and development. This research aims to build on this and explore the student perceptions.

Vaade lähiminevikku ja pilguheit tulevikku / Evelyn Müürsepp

Index Scriptorium Estoniae

Müürsepp, Evelyn

2010-01-01

Mooste Kunsti- ja Sotsiaalpraktika Keskuse tegevusest. Loetletud 2009. a. Moostes töötanud 16 kunstnikku. Ana Carvalho (Portugal), Jez Riley Frenchi (Inglismaa), Matt Marble'i ja Emma Lippi (USA), Susanne Kudielka ja Kaspar Wimberley (Saksamaa/Inglismaa) ning Kanako Sasaki (Jaapan) töödest

Final Environmental Assessment for the Military Housing Privatization Initiative (MHPI), Dyess Air Force Base, Texas

Science.gov (United States)

2011-07-01

SGOAB Capt Mark Sakai Weapons Safety/Explosive Ordnance Disposal 7 BW/SEW Shari Riley Real Property Office 7 CES/CEAOR Sgt Alicia Uerena Entomology...Water Resources / Soils Alysia Baumann 5 years, environmental science B.S., Chemical Engineering Air Quality Luis Diaz 15 years, environmental

Maintaining the immunological balance in parasitic infections: a role for TGF-ß?

DEFF Research Database (Denmark)

Omer, F M; Kurtzhals, J A; Riley, E M

2000-01-01

on the one hand and prevention of immune-mediated pathology on the other. In this article, Fakhereldin Omer, Jørgen Kurtzhals and Eleanor Riley review the immunoregulatory properties of TGF-beta in the context of parasitic infections. Data from murine malaria infections suggest that TGF-beta modifies...

Using Probabilistic Terrorism Risk Modeling for Regulatory Benefit-Cost Analysis. Application to the Western Hemisphere Travel Initiative Implemented in the Land Environment

Science.gov (United States)

2007-05-01

Dixon and Stern, 2004), and gun violence prevention programs ( Tita et al., 2003). As DHS considers promulgating regulations and implementing new...communication 2/21/07. Tita , G., K. J. Riley, G. Ridgeway, C. A. Grammich, A. Abrahamse, and P. W. Greenwood (2003), Reducing Gun Violence: Results

Advising China, 1924-1948: The Role of Military Culture in Foreign Advisory Missions

Science.gov (United States)

2012-04-27

part of Ludendorff’s ultra-nationalist circle, which had participated in Adolf Hitler’s failed Beer Hall Putsch in 1923. 73 The advisers... Sour ce: Charles F. Romanus and Riley Sunderland, United States Army in World War II, China-Burma-India Theater: Stilwell’s Mission to China

75 FR 59208 - Modoc County Resource Advisory Committee

Science.gov (United States)

2010-09-27

... Office, Conference Room, 800 West 12th St., Alturas. FOR FURTHER INFORMATION CONTACT: Kimberly H... Coordinator, Stephen Riley at (530) 233-8771. SUPPLEMENTARY INFORMATION: The business meeting on October 4... meeting. Dated: September 20, 2010. Kimberly H. Anderson, Forest Supervisor. [FR Doc. 2010-24177 Filed 9...

Military Bases: Opportunities Exist to Improve Future Base Realignment and Closure Rounds

Science.gov (United States)

2013-03-01

Operational Army—realigns Fort Bliss , TX; Fort Hood, TX; Fort Riley, KS; Fort Campbell, KY; and Fort Sill, OK to include rebasing of units from overseas to...Committee on Appropriations United States Senate The Honorable Tim Johnson Chairman The Honorable Mark Kirk Ranking Member Subcommittee on Military

We Should Not Give up on Kids: Interviews with former U.S. Attorney General Janet Reno.

Science.gov (United States)

Reno, Janet

2001-01-01

In two interviews Janet Reno, former U.S. Attorney General, discusses the biggest challenges facing children and youth and how government, families, and communities can come together to meet these challenges. The first interview was conducted by Mary Shahbazian; the second was conducted by Father Chris Riley. (Author)

Communicators take nine Virginia Press Women awards

OpenAIRE

Owczarski, Mark

2008-01-01

Three Virginia Tech communicators have won Virginia Press Women awards. The winners - Susan Trulove, research division communications manager; Clara Cox, university publications director; and Heather Riley Chadwick, College of Architecture and Urban Studies communication manager - were announced at the Virginia Press Women Annual Spring Conference in Staunton, Va.

QuartetS-DB: A Large-Scale Orthology Database for Prokaryotes and Eukaryotes Inferred by Evolutionary Evidence

Science.gov (United States)

2012-01-01

particular functions and identify species that contain these proteins. For example, if users select two species, Homo sapiens and Mus musculus, and...Kerr AR, McCormack TJ, Riley M: Evolution by leaps: gene duplication in bacteria. Biol Direct 2009, 4:46. 12. Remm M, Storm CE, Sonnhammer EL

Historical Review of Atomic Frequency Standards Used in Space Systems - 10 Year Update

Science.gov (United States)

2007-01-01

section on 2006 predictions. The authors would like to thank Peter Cash, Bernardo Jaduszliwer, Bob Kern, Robert Lutwak , John Prestage, Bill Riley, and...258- 262. [17] R. Lutwak , D. Emmons, R. M. Garvey, and P. Vlitas, 2003, “Optically pumped cesium-beam frequency standard for GPS-III,” in

A Framework for Failure? The Impact of Short Tour Lengths and Separate National Command and Control on British Operational Art and Coalition Warfare in Iraq, 2003-2009

Science.gov (United States)

2013-12-10

frame the problem.54 This is a clear example of cognitive dissonance and highlights the intellectual confusion that had emerged in senior British...to explicitly express complete satisfaction with PJHQ and the command and control framework) came from LTG Riley, CG MND (SE) from Dec 04-Jun 05: LTG

Pediatric Palliative Care: A Personal Story

Medline Plus

Full Text Available ... 24. RileyKidsVideo 217,733 views 4:24 Childhood Cancer: Palliative Care - Duration: 3:29. American Cancer Society 4,455 views 3:29 Portraits of ... views 5:39 The Ugly Truth of Pediatric Cancer - Duration: 5:21. KidsCancerChannel 64,265 views 5: ...

Rehabilitation at Nabarlek: erosion assessment 1999

International Nuclear Information System (INIS)

Evans, K.G.; Saynor, M.J.; Hancock, G.R.

2001-01-01

Decommissioning work and the rehabilitation at the Nabarlek minesite were completed at the end of 1995. Site description, mining history, environmental management and rehabilitation have been summarised elsewhere (Prendergast et al 1999, Martin 2000, Waggitt 2001). Tailings were buried in the mined-out pit and capped with waste rock. An erosion assessment of the cap design, using a combination of modelling and analogue estimates, indicated that denudation rates on the cap would be -1 (Riley 1995). Riley (1995) suggested minor design modifications to reduce slope length on the pit cap to improve stability and provide structural integrity for several thousand years. Riley (1995) observed that roads were areas of most severe rill development in the Alligator Rivers Region (ARR) and suggested that rill development (0.2-0.3 m depth) on the pit cap would occur in the early stages of adjustment toward equilibrium but not persist in the long term. Consequently, as part of the process of assessing rehabilitation success, erosion at the former minesite was examined by ERISS in August and October 1999. A ground assessment of the perimeter of the evaporation ponds, pit and waste rock dump (WRD), unsealed roads to the north and east of the site and infrastructure area was conducted in August 1999. This survey described, quantified (using a tape and rule) and photographed erosion features. No transects were undertaken. In October 1999, a qualitative (descriptive and photographic) survey of the airstrip, constructed drains, unsealed roads to the west of the site, the pit and WRD was conducted. On this occasion, transects of the WRD and pit were taken but the locations of the transects were not surveyed

Nõela all : Igakuine vinüülitutvustus / Stony Place

Index Scriptorium Estoniae

Stony Place

1998-01-01

Uutest vinüülplaatidest Daddy's Favourite "I Feel Good Things For You", Kenny Lattimore "Days Like This", 70̀ s Age "Reach For The Sky","Grindlocked EP", Bill Riley "Closing In EP", Moodymann "Forevernevermore", Frankie Valentine "Staring In The face Of Extinction", "Norman Jay presents Philadelphia" International 1973-81"

The contribution of unresolved radio-loud AGN to the extragalactic diffuse gamma-ray background

DEFF Research Database (Denmark)

Mucke, A.; Pohl, M.

2000-01-01

, and on the unification scheme of radio-loud AGN. According to this picture, blazars represent the beamed fraction of the Fanaroff-Riley radio galaxies (FR galaxies). The observed log N-log S distribution and redshift distribution of both FSRQs and BL Lacs constrain our model. Depending slightly on the evolutionary...

76 FR 50726 - Riverbank Hydro No. 14, LLC; Notice of Preliminary Permit Application Accepted for Filing and...

Science.gov (United States)

2011-08-16

... (FPA), proposing to study the feasibility of the Tuttle Creek Hydroelectric Project (Tuttle Creek Project or project) to be located at the U.S. Army Corps of Engineers' (Corps) Tuttle Creek Dam, on Big Blue River, near Manhattan, Riley County, Kansas. The sole purpose of a preliminary permit, if issued...

JSTO Science and Technology Update. Volume 1, Number 2, Winter 2011

Science.gov (United States)

2011-01-01

the organism from lethality. Experimental animal model and techniques to evaluate radioprotective efficacy of GT3 Adult male CD2F1 mice were injected...Pharmac. Biochem. Behav. 27: 573–576. 22. Glover D, Riley LJ Jr, Carmichael K, Spar B, Glick JH, Slatopolsky E, Attie M, Goldfarb S (1983). Hypocalcemia

RF-Interrogated End-State Chip-Scale Atomic Clock

Science.gov (United States)

2007-11-01

coherent population trapping,” Electronics Letters 37, (24), 1449-1451. [2] R. Lutwak , P. Vlitas, M. Varghese, M. Mescher, D. K. Serkland, and G. M...367. [9] R. Lutwak , D. Emmons, T. English, W. Riley, A. Duwel, M. Varghese, D. K. Serland, and G. M. Peake, 2003, “Chip-Scale Atomic Clock, Recent

78 FR 69081 - Mid-Atlantic Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and...

Science.gov (United States)

2013-11-18

... study the feasibility of the Tuttle Creek Hydroelectric Project (Tuttle Creek Project or project) to be located on Big Blue River, in the city of Manhattan, Riley County, Kansas. The sole purpose of a.... The proposed project would consist of the following: (1) A new 350- foot-long, 16-foot-diameter steel...

The deployment of a tissue request tracking system for the CHTN: a case study in managing change in informatics for biobanking operations

Directory of Open Access Journals (Sweden)

Grizzle William E

2010-06-01

Full Text Available Abstract Background Managing change has not only been recognized as an important topic in medical informatics, but it has become increasingly important in translational informatics. The move to share data, together with the increasing complexity and volume of the data, has precipitated a transition from locally stored worksheet and flat files to relational data bases with object oriented interfaces for data storage and retrieval. While the transition from simple to complex data structures, mirroring the transition from simple to complex experimental technologies, seems natural, the human factor often fails to be adequately addressed leading to failures in managing change. Methods We describe here a case study in change management applied to an application in translational informatics that touches upon changes in hardware, software, data models, procedures, and terminology standards. We use the classic paper by Riley and Lorenzi to dissect the problems that arose, the solutions that were implemented, and the lessons learned. Results The entire project from requirements gathering through completion of migration of the system took three years. Double data entry into the old and new systems persisted for six months. Contributing factors hindering progress and solutions to facilitate managing the change were identified in seven of the areas identified by Riley and Lorenzi: communications, cultural changes in work practice, scope creep, leadership and organizational issues, and training. Conclusions Detailed documentation of the agreed upon requirements for the new system along with ongoing review of the sources of resistance to change as defined by Riley and Lorenzi were the most important steps taken that contributed to the success of the project. Cultural changes in tissue collection mandated by standards requirements introduced by the Cancer Bioinformatics Grid (CaBIG® and excessive reliance on the outgoing system during a lengthy period of dual

The deployment of a tissue request tracking system for the CHTN: a case study in managing change in informatics for biobanking operations.

Science.gov (United States)

Edgerton, Mary E; Grizzle, William E; Washington, M Kay

2010-06-02

Managing change has not only been recognized as an important topic in medical informatics, but it has become increasingly important in translational informatics. The move to share data, together with the increasing complexity and volume of the data, has precipitated a transition from locally stored worksheet and flat files to relational data bases with object oriented interfaces for data storage and retrieval. While the transition from simple to complex data structures, mirroring the transition from simple to complex experimental technologies, seems natural, the human factor often fails to be adequately addressed leading to failures in managing change. We describe here a case study in change management applied to an application in translational informatics that touches upon changes in hardware, software, data models, procedures, and terminology standards. We use the classic paper by Riley and Lorenzi to dissect the problems that arose, the solutions that were implemented, and the lessons learned. The entire project from requirements gathering through completion of migration of the system took three years. Double data entry into the old and new systems persisted for six months. Contributing factors hindering progress and solutions to facilitate managing the change were identified in seven of the areas identified by Riley and Lorenzi: communications, cultural changes in work practice, scope creep, leadership and organizational issues, and training. Detailed documentation of the agreed upon requirements for the new system along with ongoing review of the sources of resistance to change as defined by Riley and Lorenzi were the most important steps taken that contributed to the success of the project. Cultural changes in tissue collection mandated by standards requirements introduced by the Cancer Bioinformatics Grid (CaBIG) and excessive reliance on the outgoing system during a lengthy period of dual data entry were the primary sources of resistance to change.

Assessing Constraints on Soldier Cognitive and Perceptual Motor Performance During Vehicle Motion

Science.gov (United States)

2008-05-01

vehicle systems are biomechanical (Sirouspour & Salcudean, 2003; Sövényi & Gillespie, 2007), cognitive (Parasuraman & Riley, 1997), and psychomotor...vs. velocity), pedals for braking/acceleration Environmental constraints associated with the support surface (Seat): Damping, inclination...steering and secondarily, performance differences between a joystick and pedals for throttle and brake control. Eleven participants com- pleted three

Becoming Successful Readers: A Volunteer Tutoring Program for Culturally Diverse Students

Science.gov (United States)

Moore-Hart, Margaret; Karabenick, Stuart A.

2009-01-01

In 1996 President Clinton established the America Reads Challenge Act (1997), which included a commitment that every child will read independently and well by the end of third grade. This initiative was predicated on links between achievement and poverty (Riley, 1996, 2002) and that children reading below grade level in the early grades perform…

Weather. European Theater Weather Orientation (ETWO)

Science.gov (United States)

1992-11-01

EGUL RAF Lakenheath KBKF Buckdey CO EGUN RAF Mildenhall KSAW Sawyer MI EDAS Sembach GM KGRF Ft Lewis WA EDAB Bitburg GM KFRI Ft Riley KS EDAT...Stability Idez (2) The following list shows the bulletin headers with stations included on each FJ•UEO EDEX EDIC EDIN EDOP EDID EDOT FUE51 EGUA EGUN

Investigation of the Reliability of the SSI-3 for Preschool Persian-Speaking Children Who Stutter

Science.gov (United States)

Bakhtiar, Mehdi; Seifpanahi, Sadegh; Ansari, Hossein; Ghanadzade, Mehdi; Packman, Ann

2010-01-01

There is a pressing need in Iran for the translation of widely used speech-language assessment tools into Persian. This study reports the interjudge and intrajudge reliability of a Persian translation of the Stuttering Severity Instrument-3 (SSI-3) (Riley, 1994). There was greater than 80% interjudge and intrajudge agreement on scale scores for…

The Effect of Extinguishing Agents on Burning Sonobuoys Containing Lithium-Sulfur Dioxide Batteries

Science.gov (United States)

1989-09-01

components and the JP-5. In addition, the types of extinguish- ment materials, such as carbor spheres, that have some degree of success on metal fires , would...NWC TP 6571, publication UNCLASSIFIED.) 8. John F. Riley. "Na-X, a New Fire Extinguishing Agent for Metal Fires ," Fire Technology, Vol. 10, No. 4

A Comparative Analysis of Word Problems in Selected United States and Russian First Grade Textbooks

Science.gov (United States)

Grishchenko, Svetlana

2009-01-01

The purpose of this study was to explore word problems as a subject matter in mathematics textbook curricula. The motivation for the study derived from the following evidence: (a) American students find some word problems are more difficult than others (Garcia, Jimenez, & Hess, 2006; Riley & Green, 1988; Stern, 2001), and (b) one of the…

National Uranium Resource Evaluation Program. Hydrogeochemical and stream sediment pilot survey of Llano area, Texas

International Nuclear Information System (INIS)

Nichols, C.E.; Kane, V.E.; Minkin, S.C.; Cagle, G.W.

1976-01-01

A pilot geochemical survey of the Llano, Texas, area was conducted during February and March 1976. The purpose of this work was to prepare for a subsequent reconnaissance geochemical survey of uranium in Central Texas. Stream sediment, stream water, well water, and plant ash from five geologic areas were analyzed in the laboratory for approximately 25 parameters. Examples of anomalous values in stream sediment and stream water indicate the usefulness of both sample types in identifying anomalies at a regional reconnaissance-scale station spacing of approximately 5 km (3 mi). Groundwater samples, which generally best indicate the geochemistry of formations at depth in a survey of this type, represent another important tool in detecting uranium mineralization. Anomalies in San Saba County are associated with the Marble Falls-Smithwich Formations and the Strawn Series (Pennsylvanian), the Houy Formation (Devonian and lower Mississippian), and the Hickory Sandstone Member of the Riley Formation (Cambrian). In Burnet County anomalous values are due to the influence of the Valley Spring Formation (Precambrian); and in Blanco County anomalies are found associated with the Riley Formation

Inertial particle manipulation in microscale oscillatory flows

Science.gov (United States)

Agarwal, Siddhansh; Rallabandi, Bhargav; Raju, David; Hilgenfeldt, Sascha

2017-11-01

Recent work has shown that inertial effects in oscillating flows can be exploited for simultaneous transport and differential displacement of microparticles, enabling size sorting of such particles on extraordinarily short time scales. Generalizing previous theory efforts, we here derive a two-dimensional time-averaged version of the Maxey-Riley equation that includes the effect of an oscillating interface to model particle dynamics in such flows. Separating the steady transport time scale from the oscillatory time scale results in a simple and computationally efficient reduced model that preserves all slow-time features of the full unsteady Maxey-Riley simulations, including inertial particle displacement. Comparison is made not only to full simulations, but also to experiments using oscillating bubbles as the driving interfaces. In this case, the theory predicts either an attraction to or a repulsion from the bubble interface due to inertial effects, so that versatile particle manipulation is possible using differences in particle size, particle/fluid density contrast and streaming strength. We also demonstrate that these predictions are in agreement with experiments.

Some aspects of case teaching : how to improve the educational process / Manuela Tvaronaviciene

Index Scriptorium Estoniae

Tvaronaviciene, Manuela

2003-01-01

Kaanel ajak. ilmumisaeg 2002/2003. Autor tutvustab juhtumianalüüsi kui ärijuhtide koolitusel kasutatavat õppevahendit Harvard Business School'is, IESE Business School'is ja teistes sama tüüpi ülikoolides. Autor teeb ülevaate juhtumi valiku printsiipidest ja juhtumianalüüsi läbiviimise metodoloogiast ning etappidest. Skeem

Cancel the Cardinals Home Opener?! Lessons in Melting and Evaporation

Science.gov (United States)

Market, Patrick S.

2005-01-01

The St. Louis Cardinals are scheduled to play their home opener the next day and Megan Riley, a young meteorologist who works for a private weather consulting firm, is responsible for developing the weather forecast. It's looking like she may need to change her prediction from rain to snow. In this interrupted case study, students work in small…

Multiple Cationic Amphiphiles Induce a Niemann-Pick C Phenotype and Inhibit Ebola Virus Entry and Infection

Science.gov (United States)

2013-02-18

Volume 8 | Issue 2 | e56265 mL. After disrupting the membranes with 20 mM methionine methyl -ester for 1 hr at RT, ,150 mg of disrupted NPC1- enriched...PLoS Biol 9: e1000598. 42. Simmons G, Rennekamp AJ, Chai N, Vandenberghe LH, Riley JL, et al. (2003) Folate receptor alpha and caveolae are not required

te70).

African Journals Online (AJOL)

Dunn (1975) recorded a similar response regarding the total LH response, but not the peak LH level, in heifers fed 6I% of their energy requirements. In an earlier study by Dunn, Rone. Kaltenbach, van der walt, Riley. & Akbar (1974) the peak LH was in effect higher in underfed beef cows. In the study reported here, on day.

Spatial Distribution of Infection Risk of SARS Transmission in a Hospital Ward

DEFF Research Database (Denmark)

Qian, Hua; Li, Yuguo; Nielsen, Peter V.

2009-01-01

The classical Wells-Riley model for predicting risk of airborne transmission of diseases assumes a uniform spatial distribution of the infected cases in an enclosed space. A new mathematical model is developed here for predicting the spatial distribution of infection risk of airborne transmitted ......, such as inpatients in a hospital ward, passengers in an airplane etc....

Francisco de Goya en San Nicolás de los Loreneses de Roma 1770

Directory of Open Access Journals (Sweden)

Navarrete Prieto, Benito

2002-09-01

Full Text Available La aparición del Cuaderno Italiano de Goya y su posterior estudio por parte de Jesús Urrea, Manuela Mena, Juliet Wilson, Paolo Mangiante, Rogelio Buendía y Arturo Ansón ha venido a desvelar un periodo fascinante en la formación del joven Goya, pudiendo rastrear, no solo los elementos que constituyeron sus fuentes en el periodo de aprendizaje, sino los propios orígenes de su arte y sobre todo constituirse en instrumento para fechar y autentificar obras del artista de su época juvenil entre las que destaca el Aníbal vencedor, felizmente hallado por Urrea y con el que Goya concurrió al premio de la Academia de Parma en 1771....

Human Factors Issues When Operating Underwater Remotely Operated Vehicles and Autonomous Underwater Vehicles

Science.gov (United States)

2011-03-01

etiquette (Parasuraman & Miller, 2004). Through natural and intuitive communication, Johnson et al., (2007) hope that this interface will instill greater...and etiquette in high criticality automated systems. Communications of the ACM, 47(4), 51-55. Parasuraman, R., & Riley, V. (1997). Humans and... protocols for underwater wireless communications. IEEE Communications Magazine, pp. 97-102. Quazi, A. H., & Konrad, W. L. (1982, March 1982). Underwater

Controls Over Materiel Procured for Direct Vendor Delivery

Science.gov (United States)

1995-02-10

National Guard, Company D, 560th Engineer Battalion, Bainbridge, GA Army National Guard, Company E, 121st Infantry Battalion, Tifton , GA Joint...Command, Fort Monmouth, NJ United States Army Forces Command, Atlanta, GA United States Army Materiel Command, Alexandria, VA United States Army...Fort Gillem, GA Headquarters, Fort Lee, Petersburg, VA Headquarters, Fort Riley, KS Headquarters, National Guard Bureau, Washington, DC Headquarters

Synergy Between Radio and Optical Telescopes: Optical Followup ...

Indian Academy of Sciences (India)

tion, because the star formation rate is linked to FIR emission as well as number of supernovae. However, with the advent of recent deep and ultra-deep surveys ..... Kuiper, E., Venemans, B. P., Hatch, N. A., Miley, G. K., Röttgering, H. J. A. 2012, MNRAS,. 425, 801. Laing, R. A., Riley, J. M., Longair, M. S. 1983, MNRAS, 204, ...

Assessing biodiversity on the farm scale as basis for ecosystem service payments.

Science.gov (United States)

von Haaren, Christina; Kempa, Daniela; Vogel, Katrin; Rüter, Stefan

2012-12-30

Ecosystem services payments must be based on a standardised transparent assessment of the goods and services provided. This is especially relevant in the context of EU agri-environmental programs, but also for organic-food companies that foster environmental services on their contractor farms. Addressing the farm scale is important because land users/owners are major recipients of payments and they could be more involved in data generation and conservation management. A standardised system for measuring on-farm biodiversity does not yet exist that concentrates on performance indicators and includes farmers in generating information. A method is required that produces ordinal or metric scaled assessment results as well as management measures. Another requirement is the ease of application, which includes the ease of gathering input data and understandability. In order to respond to this need, we developed a method which is designed for automated application in an open source farm assessment system named MANUELA. The method produces an ordinal scale assessment of biodiversity that includes biotopes, species, biotope connectivity and the influence of land use. In addition, specific measures for biotope types are proposed. The open source geographical information system OpenJump is used for the implementation of MANUELA. The results of the trial applications and robustness tests show that the assessment can be implemented, for the most part, using existing information as well as data available from farmers or advisors. The results are more sensitive for showing on-farm achievements and changes than existing biotope-type classifications. Such a differentiated classification is needed as a basis for ecosystem service payments and for designing effective measures. The robustness of the results with respect to biotope connectivity is comparable to that of complex models, but it should be further improved. Interviews with the test farmers substantiate that the assessment

Magnetic field, reconnection, and particle acceleration in extragalactic jets

Science.gov (United States)

Romanova, M. M.; Lovelace, R. V. E.

1992-01-01

Extra-galactic radio jets are investigated theoretically taking into account that the jet magnetic field is dragged out from the central rotating source by the jet flow. Thus, magnetohydrodynamic models of jets are considered with zero net poloidal current and flux, and consequently a predominantly toroidal magnetic field. The magnetic field naturally has a cylindrical neutral layer. Collisionless reconnection of the magnetic field in the vicinity of the neutral layer acts to generate a non-axisymmetric radial magnetic field. In turn, axial shear-stretching of reconnected toroidal field gives rise to a significant axial magnetic field if the flow energy-density is larger than the energy-density of the magnetic field. This can lead to jets with an apparent longitudinal magnetic field as observed in the Fanaroff-Riley class II jets. In the opposite limit, where the field energy-density is large, the field remains mainly toroidal as observed in Fanaroff-Riley class I jets. Driven collisionless reconnection at neutral layers may lead to acceleration of electrons to relativistic energies in the weak electrostatic field of the neutral layer. A simple model is discussed for particle acceleration at neutral layers in electron/positron and electron/proton plasmas.

Climate change – an opportunity for engineers? | Riley | Journal of ...

African Journals Online (AJOL)

... such as agricultural land being used for biofuels, and community expectations of a more secure and “better” life. The doomsday scenarios suggest that the human and natural systems will collapse under the strain. Notwithstanding the problems of united world-wide action to address the issues of climate change there are ...

Evaluating the Navy’s Enlisted Accessions Testing Program Based on Future Talent Needs

Science.gov (United States)

2017-03-01

NAVY’S ENLISTED ACCESSIONS TESTING PROGRAM BASED ON FUTURE TALENT NEEDS by Shereka F. Riley March 2017 Thesis Advisor: Joseph Sullivan Co...REPORT TYPE AND DATES COVERED Master’s thesis 4. TITLE AND SUBTITLE EVALUATING THE NAVY’S ENLISTED ACCESSIONS TESTING PROGRAM BASED ON FUTURE TALENT ...public release. Distribution is unlimited. 12b. DISTRIBUTION CODE 13. ABSTRACT (maximum 200 words) In recent years, non-defense related industries

The Role of Lower Extremity Joint Powers in Successful Stair Ambulation

Science.gov (United States)

2011-01-01

written informed consent, all subjects participated in a biomechanical gait assessment during stair ascent walking. A total of 55 markers were used...power generation and vertical COM acceleration (COMA) during stair ascent. Twenty-two healthy individuals underwent a biomechanical gait assessment...DA. An integrated biomechanical analysis of normal stair ascent and descent. J Biomech 1988;21:733–44. [6] Zachazewski JE, Riley PO, Krebs DE

Selectivity of pesticides used in rice crop on Telenomus podisi and Trichogramma pretiosum

OpenAIRE

Pazini,Juliano de Bastos; Grützmacher,Anderson Dionei; Martins,José Francisco da Silva; Pasini,Rafael Antônio; Rakes,Matheus

2016-01-01

ABSTRACT Telenomus and Trichogramma species stand out as agents for the biological control in rice crops, and the main strategy for preserving them is the use of selective pesticides. This study aimed at evaluating the toxicity of pesticides used in irrigated rice crop on Telenomus podisi Ashmead (Hymenoptera: Platygastridae) and Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae). Adults of these parasitoids were exposed to dry residues of pesticides, in a completely randomized exp...

A method to identify energy efficiency measures for factory systems based on qualitative modeling

CERN Document Server

Krones, Manuela

2017-01-01

Manuela Krones develops a method that supports factory planners in generating energy-efficient planning solutions. The method provides qualitative description concepts for factory planning tasks and energy efficiency knowledge as well as an algorithm-based linkage between these measures and the respective planning tasks. Its application is guided by a procedure model which allows a general applicability in the manufacturing sector. The results contain energy efficiency measures that are suitable for a specific planning task and reveal the roles of various actors for the measures’ implementation. Contents Driving Concerns for and Barriers against Energy Efficiency Approaches to Increase Energy Efficiency in Factories Socio-Technical Description of Factory Planning Tasks Description of Energy Efficiency Measures Case Studies on Welding Processes and Logistics Systems Target Groups Lecturers and Students of Industrial Engineering, Production Engineering, Environmental Engineering, Mechanical Engineering Practi...

Parasitism Capacity of Trichogramma pretiosum and Trichogramma acacioi (Hym.: Trichogrammatidae on eggs of Sitotroga cerealella (Lep.: Gelechiidae

Directory of Open Access Journals (Sweden)

Dirceu Pratissoli

2008-12-01

Full Text Available The objective of this work was to evaluate the parasitism capacity of Trichogramma pretiosum Riley and T. acacioi Brun, Moraes and Soares (Hymenoptera: Trichogrammatidae in eggs of the alternative host Sitotroga cerealella (Olivier (Lepidoptera: Gelechiidae aiming to use both species in biological control programs of Nipteria panacea Tierry-Mieg (Lepidoptera: Geometridae. The parasitism rhythm and total parasitism of these parasitoid species were affected by the temperature with higher values during the first 24 h of their life. Parasitism period was longer for T. pretiosum and T. acacioi at the lowest temperature.O objetivo deste trabalho foi estudar a capacidade de parasitismo de Trichogramma pretiosum Riley e de Trichogramma acacioi Brun, Moraes and Soares (Hymenoptera: Trichogrammatidae em ovos do hospedeiro alternativo Sitotroga cerealella (Olivier (Lepidoptera: Gelechiidae, visando o uso desses inimigos naturais em programas de controle biológico da praga do abacateiro Nipteria panacea Tierry-Mieg (Lepidoptera: Geometridae. O ritmo de parasitismo de T. acacioi e T. pretiosum variou com a temperatura, sendo maior nas primeiras 24 horas de vida desses parasitóides. Além disso, o período de parasitismo foi maior para essas duas espécies de parasitóides na menor temperatura, enquanto o parasitismo total por fêmea variou com a temperatura.

Sustainability-Related Publications: Calendar Years 2014 - 2015

Science.gov (United States)

2016-03-03

interface changes throughout the program to facilitate the process, ease data entry, and help deter- mine the information required to produce useful...was limited before the start of these projects and was estimated to deter- mine proper sizing of the two methods used. During proof-of-concept...et al. ERDC/CERL TR-14-12. OPAL Netlogo Land Condition Model: Application and Validation at Fort Riley, KS, http://acwc.sdp.sirsi.net/client/en_US

An Estimate and Score Algorithm for Simultaneous Parameter Estimation and Reconstruction of Incomplete Data on Social Networks

Science.gov (United States)

2013-01-12

www.security-informatics.com/content/2/1/1 References 1. SM Radilm, C Flint, GE Tita , Spatializing Social Networks: Using Social Network Analysis to...http://www.tandfonline.com/doi/ abs/10.1080/00045600903550428 2. G Tita , S Radil, Spatializing the social networks of gangs to explore patterns of...violence. Journal of Quantitative Criminology. 27, 1–25 (2011) 3. G Tita , JK Riley, G Ridgeway, AF Abrahamse, P Greenwood, Reducing Gun Violence

Long-Term Stability of NIST Chip-Scale Atomic Clock Physics Packages

Science.gov (United States)

2007-01-01

vacuum packaging), as has been demonstrated by Lutwak et al. [3]. Nevertheless, we tried to investigate the causes for the frequency shifts of...stability,” Optics Express, 13, 1249-1253. [3] R. Lutwak , J. Deng, W. Riley, M. Varghese, J. Leblanc, G. Tepolt, M. Mescher, D. K. Serkland, K. M. Geib...the 1st Annual Multiconference on Electronics and Photonics, 7-11 November 2006, Guanajuato, Mexico, in press. [6] R. Lutwak , P. Vlitas, M

A Focused Fundamental Study of Predicting Materials Degradation & Fatigue. Volume 1

Science.gov (United States)

1997-05-31

Eisentraut U.S. Air Force Thomas Faegg Thomas Optical Mike Foley Norton Company Kathleen Havey Wright Lab Bill Mandler Enceratec Karl Mecklenburg U.S. Air...F. Riley (ed.). Nitrogen Ceramics, Noordhoff, Leyden , release rate obtained is greater than or equal to its critical Netherlands, 1977, pp. 109-128...Noordhoff, Leyden , Netherlands, 1977, pp. 265-288. node will then be relaxed into two nodes and crack extension [5] D. Richerson, Am. Ceram. Soc. Bull

U.S. Army Corps of Engineers Surveying Requirements Meeting, 2-5 February 1982,

Science.gov (United States)

1982-04-01

performance and economical performance, has been in effect in prior legislation since the 1920’s. 2. PL 95-269 has a new provision - that the Corps...please hire and train your crew locally.* (This is also in conformance with the Legislative directive to utilize local community resources.) Seriously...Glennon Equipment Westminister Park John Lorea Contract Surveys E. Providence, RI 02914 (401) 438-1780 Riley Park Hayden Ralph L. Hayden Contract Surveys

The Biggest Stick: The Employment of Artillery Units in Counterinsurgency

Science.gov (United States)

2011-06-10

83 59Riley Sunderland, Organizing Counterinsurgency in Malaya, 1947-1960 (Santa Monica, CA: RAND, 1964), 17. 60The Virgin Soldiers, ―British...on the night of 30-31 January 1968 in the midst of the largest holiday on the Vietnamese calendar, and it culminated within two weeks except in Hue...executed bodies per month to a pacified environment in which locals brought American soldiers food on holidays .191 The glaring negative effect was

Una trayectoria de nuestro tiempo

Directory of Open Access Journals (Sweden)

Roberto Schwarz

2014-12-01

Full Text Available La lectura crítica de la autobiografía de CaetanoVeloso, Verdade tropical, analiza la posición cultural y política de la Tropicália, movimiento en que este artista tuvo un papel decisivo con su música y sus shows. Se problematiza su distanciamiento de la izquierda tradicional y las críticas que hace de ésta: por un lado, su ilusión sobre la existencia de un ‘populismo’ y, por el otro, su complacencia con medidas dictatoriales tomadas en el nombre del pueblo. El artículo sostiene que esta actitud prepara el descompromiso social que caracteriza el post-modernismo, no obstante admite que tampoco la izquierda –hasta hoy– ha encontrado una respuesta sobre el periodo que apunte a una reevaluación de lo popular y del pueblo como sujeto políticamente viable. A leitura crítica da autobiografia de Caetano Veloso, Verdade tropical, analisa a perspectiva cultural e política da Tropicália, movimento no qual este artista teve um papel decisivo com sua música e seus shows. Problematiza-se o seu afastamento a respeito da esquerda tradicional e as críticas que faz dela: de um lado, a sua ilusão com a existência de um ‘populismo’ e, do outro, a sua complacência com medidas ditatoriais tomadas em nome do povo. O ensaio assinala que a atitude da Tropicália antecipa a desobrigação social que caracteriza o pós-modernismo, não obstante admite que a esquerda não foi capaz até hoje de propor uma nova avaliação tanto do período quanto do popular e do povo como sujeito politicamente viável. This critical approach to Caetano Veloso’s autobiographic book Verdade Tropical, analyzes the cultural and political dimensions of Tropicália, a movement in which this artist played a decisive role with his music and shows. This article questions the distance Tropicália took from traditional left-wing positions, as well as its criticism of the latter: on the one hand, Tropicália’s misleading depiction about populism and, on the other

Army Communicator. Volume 33, Number 1, Winter 2008

Science.gov (United States)

2008-01-01

1983, with the Cold War still going strong, a movie called “War Games” de- picted an eccentric computer hacker named David Lightman, played by Matthew...After an abbreviated, but successful, reception and staging operations, including another small COMMEX, in the “dustbowl;” the Regiment began a phased...stationed at Fort Riley Kan., STB 3HBCT 1AR Division. JNN training: 25Q, PFC Logan Davis, tests his knowledge on a Ku satellite transportable trailer

Component-Level Demonstration of a Microfabricated Atomic Frequency Reference

Science.gov (United States)

2005-08-01

Kitching, L. A. Liew, and J. Moreland, "A microfabricated atomic clock," Applied Physics Letters, vol. 85, pp. 1460-1462, 2004. [4] R. Lutwak , P...Symposium on Frequency Standards and Metrology, P. Gill, Ed. St. Andrews, Scotland: World Scientific, 2001, pp. 155-166. [31] R. Lutwak , D. Emmons...Frequency and Time Forum. Tampa, FL, 2003, pp. 31-32. [71] R. Lutwak , D. Emmons, T. English, W. Riley, A. Duwel, M. Varghese, D. K. Serkland, and

Airport Activity Statistics of Certificated Route Air Carriers

Science.gov (United States)

1988-12-31

City/Ft.RileyKennewick, WA Pasco/Kennewick/Richand Kilgore, TX Longview/Kilgore/Gladewater Kingsford, MI Iron Mountain /Kingsford Kingsport. TN Bristol...1744.94 4865.07 MON MOUNTAIN /IKINIOF N 0.00(FORD) M- FEDERAL ESS ........................... DOMESTIC ........... S 96.10 96.10 N S - NmmddUd AS -A...C--71 ............ 2 2 212 TOTAL DEPARMUE PERVM COMPL0 EPTE S AlEA STARE ORW " TYPE oF DEPARTURES COMMUNITY CAM OPERATION RAIT 80iNNUDO (AIRORT NAME

B-Cell Activation and Tolerance Mediated by B-Cell Receptor, Toll-Like Receptor and Survival Signal Crosstalk in SLE Pathogenesis

Science.gov (United States)

2015-10-01

H. Wagner, K. Takeda, and S. Akira. 2000 . A Toll-like receptor recognizes bacterial DNA. Nature 408: 740–745. 2. Kawai, T., and S. Akira. 2010. The...I. M. Carr , J. C. Fuller, R. M. Jackson, T. Lamb, T. A. Briggs, et al. 2009. Mutations involved in Aicardi-Goutières syndrome implicate SAMHD1 as...Moreover, recent studies from Riley and colleagues (27) suggest that ABCs negatively influence B-lineage commitment or development of bone marrow

Geochemistry of the continental margin sediments of the central west coast of India

Digital Repository Service at National Institute of Oceanography (India)

Rao, Ch.M.; Murty, P.S.N.

organic carbonI~ntent{< I%J and organic carbon rich (upto 12%) carbonate sediments in the slope regionl The b'ulk and partition geocfiemistry of the surface sediments renect the complex intermixture of several sedimentary components (lithogenic. authigenic.... The elements Fe, Mn, Ni, Cu, Zn and Sr :ue determined using a Hilger and Watts Model M 1550 atomic absorption spectrophotometer. Titanium and Phosphorus are detennined on all samples by colorimeter (Riley, 1958; Strickland and Parsons, 1971). Following bulk...

APROXIMACION A LA CONSTRUCCION DEL CONCEPTO DE BIODIVERSIDAD: UNA EXPERIENCIA DE AULA DESDE EL ENFOQUE DE ENSEÑANZA PARA LA COMPRENSION

Directory of Open Access Journals (Sweden)

Yuly Vannesa Sánchez

2014-05-01

Full Text Available Se presenta la investigación en aula titulada “Aproximación al concepto de Biodiversidad: Una experiencia desde el enfoque de la Enseñanza para la Comprensión”, la cual fue desarrollada en el Colegio Manuela Ayala de Gaitán, con estudiantes de noveno grado, en el espacio académico de la Licenciatura en Biología de la Universidad Distrital Francisco José de Caldas. Centra la mirada en la  implementación de una estrategia que busca reconocer la comprensión de los estudiantes en relación al concepto de Biodiversidad y el avance que presentan en correspondencia  a los desempeños de comprensión, evidenciados a través de el seguimiento a la dimensión de contenidos en los niveles de comprensión (Ingenuo, Principiante, Aprendiz, Maestría.

Capacidade de dispersão de Trichogramma em tomateiro estaqueado Dispersion capacity of Trichogramma pretiosum in propped up tomato

Directory of Open Access Journals (Sweden)

Dirceu Pratissoli

2005-06-01

Full Text Available Estudou-se a capacidade de dispersão de Trichogramma pretiosum Riley em ovos de Anagasta kuehniella (Zeller, na cultura do tomateiro, em diferentes estágios fenológicos e sistemas de condução das plantas. A dispersão de T. pretiosum, 24 horas após a liberação, foi de 7,37 a 7,94 m. A área de dispersão foi de 120,20 a 138,72 m². O parasitismo foi de 53,1% a 87,3%, e significativo de acordo com o estágio fenológico da cultura. A liberação dos parasitóides para o controle de Tuta absoluta (Meyrick deve ser feita em 75 pontos por hectare.The dispersion capacity of Trichogramma pretiosum Riley was studied on Anagasta kuehniella (Zeller eggs, in tomato field in different phenological stages and systems of conduction of the plants. The dispersion of T. pretiosum, 24 hours after the liberation, attained 7.37 to 7.94 m. The dispersion area was 120.20 to 138.72 m². Parasitism varies from 53.1% to 87.3% and it is significant according to the phenological stage of the crop. The parasitoids liberation for the control of Tuta absoluta (Meyrick should be done in 75 points per hectare.

Rotorcraft Airloads Measurements - Extraordinary Costs, Extraordinary Benefits

Science.gov (United States)

2014-08-01

Force at High Speed—Data Analysis. NASA CR 145217-1. Merkley, D. J., M. J. Riley, and C. Young. 1983. Summary Report of the Second TTCP/ HTP -6 Joint...Philbrick, R. B. 1980. The Data from Aeromechanics Test and Analytics—Management and Analysis Package (DATAMAP), Vol. 1 – User’s Manual . USAAVRADCOM- TR-80...D-30A. Philbrick, R. B. and A. L. Eubanks. 1979. Operational Loads Survey – Data Management System, Vol. 1 User’s Manual . USARTL TR 78-52A. Piziali

Spatial distribution of the nematodes in the subtidal community of the Central West Coast of India with emphasis on Tershellingia longicaudata (Nematoda: Linhomoeidae)

Digital Repository Service at National Institute of Oceanography (India)

Nanajkar, M.; Ingole, B.S.; Chatterjee, T.

, Blaxter M. 2001. Systematic position and phylogeny. In Biology of Nematodes ed. DL Lee, (London: Harwood Academic Publishers), pp.1-30. El Wakeel SK, Riley JP. 1957. The determination of organic carbon in marine muds. Journal du Conseil Permanent... determination of chlorophyll. Journal du Conseil Permanent International Pourl Exploration de la mer. 30:3-15. Ingole B, Sivadas S, Goltekar R, Clemente S, Nanajkar M, Sawant R, D’Silva C, Sarkar A, Ansari Z. 2006. Ecotoxicological effect of grounded MV River...

逮捕に伴う電子機器の内容確認と法的規律 : Riley判決を契機として

OpenAIRE

緑, 大輔

2016-01-01

In Riley v. California, the U.S. Supreme Court ruled that police conducting a lawful search incident to arrest must generally obtain a warrant before searching information stored on a cell phone. This ruling has the following implications. First, the notion that officer safety and the preservation of evidence are the reasons for allowing a warrantless search of the person of the arrestee, as well as a search of the scene of the arrest. Secondly, warrant requirements can protect privacy stored...

QuartetS: A Fast and Accurate Algorithm for Large-Scale Orthology Detection

Science.gov (United States)

2011-01-01

of these two genes with all other genes of the other one species. In addition, to be considered orthologs, the BBH pairs had to satisfy two conditions ...BBH pair computations employed as part of the outgroup and QuartetS methods, we used the same two conditions as the ones described above. In our...versus proteins. Genetica , 118, 209–216. 4. Serres,M.H., Kerr,A.R., McCormack,T.J. and Riley,M. (2009) Evolution by leaps: gene duplication in bacteria

McArdle disease: a case report and review

Directory of Open Access Journals (Sweden)

Leite A

2012-01-01

Full Text Available Alberto Leite, Narciso Oliveira, Manuela RochaInternal Medicine Department, Hospital de Braga, PortugalAbstract: McArdle disease (glycogen storage disease type V is a pure myopathy caused by an inherited deficit of myophosphorylase. The disease exhibits clinical heterogeneity, but patients typically experience exercise intolerance, acute crises of early fatigue, and contractures, sometimes with rhabdomyolysis and myoglobinuria, triggered by static muscle contractions or dynamic exercise. We present the case of a 54-year-old man with a lifelong history of fatigability, worsening on exertion. Laboratory evaluation revealed significant elevations in levels of creatine kinase (7924 U/L, lactate dehydrogenase (624 U/L, and myoglobulin (671 ng/mL. A muscle biopsy confirmed the presence of McArdle disease. This case report illustrates how, due to embarrassment, the patient hid his symptoms for many years and was eventually extremely relieved and “liberated” once McArdle disease was diagnosed 40 years later.Keywords: McArdle disease, glycogen storage disease, myophosphorylase

The Demise and Rise of the Coy San

Directory of Open Access Journals (Sweden)

Robert J. Gordon

2014-01-01

Full Text Available Review Article:De Jongh, Michael (2012, Roots and Routes: Karretjie People of the Great Karoo: The Marginalisation of a South African First People, Pretoria: UNISA Press, ISBN 978-1-86888-665-4, 220 pp.Glyn, Patricia (2013, What Dawid Knew: A Journey with the Kruipers, Johannesburg: Picador, ISBN 978-1-77010-304-7, 256 pp.Myburgh, Paul John (2013, The Bushman Winter Has Come: The True Story of the Last Band of /Gwikwe Bushmen on the Great Sand Face, Johannesburg: Penguin, ISBN 978-0-14-353066-4, 234 pp.Taylor, Julie J. (2012, Naming the Land: San Identity and Community Conservation in Namibia’s West Caprivi, Basel: Basler Afrika Bibliographien, ISBN 978-3-905758-25-2, 280 pp.Zips-Mairitsch, Manuela (2013, Lost Lands? (Land Rights of the San in Botswana and the Legal Concept of Indigeneity in Africa, Berlin: Lit Verlag, ISBN 978-3-643-90244-3, 430 pp.

Fort Riley Building Inventory and Evaluation, 1964-1974: Volume 1 of 2

Science.gov (United States)

2017-08-07

important in prehistory or history. 4.3 Exceptional importance Generally, buildings constructed within the past 50 years are not eligible for the...historical records provided no indication that the study properties have yielded, or were likely to yield, any information important in prehistory or...Criterion D for being able to provide additional information important in prehistory or history at a state or local level. 4.5.6 Facilities found not

User Centered System Design. Part 2. Collected Papers from the UCSD HMI Project.

Science.gov (United States)

1984-03-01

31 David Owen >CONSTRUCTIVE INTERACTION: A METHOD FOR STUDYING USER-COMPUTER-USER INTERACTION,~4 Claire O’MWaiey. Stephrn W. Drape, &mW4(fey S. Riley...improving intelligibility. __________ Display of a 1mg. musher Allows user to see a Slow to read, slow to of MCM Item: law percestage of the display, ua...Display of a saw musher Essy to red, quick to If number of alterna- of Ase im ms: display, only a small tiwes is large, multiple percentage of the sads

Response of infaunal macrobenthos to the sediment granulometry in a tropical continental margine southwest coast of India

Digital Repository Service at National Institute of Oceanography (India)

Jayaraj, K.A.; Sheeba, P.; Jacob, J.; Revichandran, C.; Arun, P.K.; Praseeda, K.S.; Nisha, P.A.; Rasheed, K.A.

. Marine Ecology Progress Series 232, 15e27. El-Wakeel, S.K., Riley, J.P., 1957. Determination of organic carbon in the ma- rine muds. Journal of Du Counseil International Exploration 22, 180e183. Fauchald, K., Jones, G.F., 1979a. A survey of five... Press, Chicago, 111 pp. Massad, R., Brunel, P., 1979. Associations par stations, densites et diversite des polychates du benthos circalittoral et bathyal de estuaire maritime du Saint Laurent. Naturaliste Canadien 106, 229e253 (in French). McLaren, P...

Modelling of transport and collisions between rigid bodies to simulate the jam formation in urban flows

Directory of Open Access Journals (Sweden)

S Hadji

2008-09-01

Full Text Available This study deals with the simulation of transport and interaction betweenbodies considered as a rectangular shape particles, in urban flow. We usedan hydrodynamic two-dimensional finite elements model coupled to theparticles model based on Maxey-Riley equations, and taking into accountof contact between bodies. The finite element discretization is based onthe velocity field richer than pressure field, and the particles displacementsare computed by using a rigid body motion method. A collision strategy isalso developed to handle cases in which bodies touch.

Distribution of major, trace and rare-earth elements in surface sediments of the Wharton Basin, Indian Ocean

Digital Repository Service at National Institute of Oceanography (India)

Pattan, J.N.; Rao, Ch.M.; Higgs, N.C.; Colley, S.; Parthiban, G.

indicate the presence of sodic feldspars in the clays (Nohara and Kato, 1985 ) or preferential biological removal of Na from seawater by certain calcareous organisms (EI- Wakeel and Riley, 1961 ). In deep-sea sediments, phosphorus is mainly present....C., 1991. The accumalation of barium in marine phytoplankton grown in culture. J. Mar. Res., 49: 339-354. Froelich, P.N., Bender, M.L., Luedtke, N.A., Heath, G.R. and De Vties, T., 1982. The marine phosphorus cycle. Am. J. Sci., 282:474-511. Glasby, G...

Aldo Leopold: A Bio-Bibliography

Science.gov (United States)

1990-10-01

Gullies: Why Sweat to Reclaim New Land When We Lack Sense Enough to Hold On to the Old Acres ?" "Canada, 1924"** "Grass, Brush, Timber, and Fire in Southern...Game Population Increased in Trials at Riley; Study Response of Prairie Chickens and Sharptail Grouse to Fall and Winter Feeding." Findings in Farm...Surveys Help the Sportsman and Farmer." New England Game Conference, 1933, pp. 51- 56.* "How the Country Boy or Girl Can Grow Quail." Wisconsin Arbor

Impact of sewage disposal on a nematode community of a tropical sandy beach

Digital Repository Service at National Institute of Oceanography (India)

Nanajkar, M.; Ingole, B.S.

1: Map of the study area with sampling location MATERIALS AND METHODS Mandovi estuary, which opens into the Arabian Sea near Panjim city on the west coast of India with an average annual river discharge of 6004 Mm 3 (Suprit and Shankar, 2008... sediment was sampled with an acrylic core (4.5cm diameter) down to 5 cm depth in triplicates. Separate cores were taken for sediment organic carbon and grain size analysis. Organic carbon was analysed using wet Oxidation method (Wakeel and Riley, 1957...

Determination Total Phosphour of Maize Plant Samples by Continuous Flow Analyzer in Comparison with Vanadium Molybdate Yellow Colorimetric Method

OpenAIRE

LIU Yun-xia; WEN Yun-jie; HUANG Jin-li; LI Gui-hua; CHAI Xiao; WANG Hong

2015-01-01

The vanadium molybdate yellow colorimetric method(VMYC method) is regarded as one of conventional methods for determining total phosphorus(P) in plants, but it is time consuming procedure. Continuous flow analyzer(CFA) is a fluid stream segmentation technique with air segments. It is used to measure P concentration based on the molybdate-antimony-ascorbic acid method of Murphy and Riley. Sixty nine of maize plant samples were selected and digested with H2SO4-H2O2. P concentrations in the dige...

Determination Total Phosphour of Maize Plant Samples by Continuous Flow Analyzer in Comparison with Vanadium Molybdate Yellow Colorimetric Method

Directory of Open Access Journals (Sweden)

LIU Yun-xia

2015-12-01

Full Text Available The vanadium molybdate yellow colorimetric method(VMYC method is regarded as one of conventional methods for determining total phosphorus(P in plants, but it is time consuming procedure. Continuous flow analyzer(CFA is a fluid stream segmentation technique with air segments. It is used to measure P concentration based on the molybdate-antimony-ascorbic acid method of Murphy and Riley. Sixty nine of maize plant samples were selected and digested with H2SO4-H2O2. P concentrations in the digests were determined by CFA and VMYC method, respectively. The t test found that there was no any significant difference of the plant P contents measured by the CFA and the VMYC method. A linear equation could best describe their relationship: Y(CFA-P=0.927X(VMYC-P-0.002. The Pearson's correlation coefficient was 0.985 with a significance level(n=69, P<0.01. The CFA method for plant P measurement had a high precision with relative standard deviation(RSD less than 1.5%. It is suggested that the CFA based on Murphy and Riley colorimetric detection can be used to determinate total plant P in the digests solutions with H2SO4-H2O2. The CFA method is labor saving and can handle large numbers of samples. The human error in mixing with other operations is reduced to a great extent.

Looking at Op Art: Gaze stability and motion illusions.

Science.gov (United States)

Hermens, Frouke; Zanker, Johannes

2012-01-01

Various Op artists have used simple geometrical patterns to create the illusion of motion in their artwork. One explanation for the observed illusion involves retinal shifts caused by small involuntary eye movements that observers make while they try to maintain fixation. Earlier studies have suggested a prominent role of the most conspicuous of these eye movements, small rapid position shifts called microsaccades. Here, we present data that could expand this view with a different interpretation. In three experiments, we recorded participants' eye movements while they tried to maintain visual fixation when being presented with variants of Bridget Riley's Fall, which were manipulated such as to vary the strength of induced motion. In the first two experiments, we investigated the properties of microsaccades for a set of stimuli with known motion strengths. In agreement with earlier observations, microsaccade rates were unaffected by the stimulus pattern and, consequently, the strength of induced motion illusion. In the third experiment, we varied the stimulus pattern across a larger range of parameters and asked participants to rate the perceived motion illusion. The results revealed that motion illusions in patterns resembling Riley's Fall are perceived even in the absence of microsaccades, and that the reported strength of the illusion decreased with the number of microsaccades in the trial. Together, the three experiments suggest that other sources of retinal image instability than microsaccades, such as slow oculomotor drift, should be considered as possible factors contributing to the illusion.

Cost-Loss Analysis of Ensemble Solar Wind Forecasting: Space Weather Use of Terrestrial Weather Tools

Science.gov (United States)

Henley, E. M.; Pope, E. C. D.

2017-12-01

This commentary concerns recent work on solar wind forecasting by Owens and Riley (2017). The approach taken makes effective use of tools commonly used in terrestrial weather—notably, via use of a simple model—generation of an "ensemble" forecast, and application of a "cost-loss" analysis to the resulting probabilistic information, to explore the benefit of this forecast to users with different risk appetites. This commentary aims to highlight these useful techniques to the wider space weather audience and to briefly discuss the general context of application of terrestrial weather approaches to space weather.

ROTATION MEASURES ACROSS PARSEC-SCALE JETS OF FANAROFF-RILEY TYPE I RADIO GALAXIES

International Nuclear Information System (INIS)

Kharb, P.; Gabuzda, D. C.; O'Dea, C. P.; Shastri, P.; Baum, S. A.

2009-01-01

We present the results of a parsec-scale polarization study of three FRI radio galaxies-3C66B, 3C78, and 3C264-obtained with Very Long Baseline Interferometry at 5, 8, and 15 GHz. Parsec-scale polarization has been detected in a large number of beamed radio-loud active galactic nuclei, but in only a handful of the relatively unbeamed radio galaxies. We report here the detection of parsec-scale polarization at one or more frequencies in all three FRI galaxies studied. We detect Faraday rotation measures (RMs) of the order of a few hundred rad m -2 in the nuclear jet regions of 3C78 and 3C264. In 3C66B, polarization was detected at 8 GHz only. A transverse RM gradient is observed across the jet of 3C78. The inner-jet magnetic field, corrected for Faraday rotation, is found to be aligned along the jet in both 3C78 and 3C264, although the field becomes orthogonal further from the core in 3C78. The RM values in 3C78 and 3C264 are similar to those previously observed in nearby radio galaxies. The transverse RM gradient in 3C78, the increase in the degree of polarization at the jet edge, the large rotation in the polarization angles due to Faraday rotation, and the low depolarization between frequencies suggest that a layer surrounding the jet with a sufficient number of thermal electrons and threaded by a toroidal or helical magnetic field is a good candidate for the Faraday rotating medium. This suggestion is tentatively supported by Hubble Space Telescope optical polarimetry but needs to be examined in a greater number of sources.

Eye movement instructions modulate motion illusion and body sway with Op Art.

Science.gov (United States)

Kapoula, Zoï; Lang, Alexandre; Vernet, Marine; Locher, Paul

2015-01-01

Op Art generates illusory visual motion. It has been proposed that eye movements participate in such illusion. This study examined the effect of eye movement instructions (fixation vs. free exploration) on the sensation of motion as well as the body sway of subjects viewing Op Art paintings. Twenty-eight healthy adults in orthostatic stance were successively exposed to three visual stimuli consisting of one figure representing a cross (baseline condition) and two Op Art paintings providing sense of motion in depth-Bridget Riley's Movements in Squares and Akiyoshi Kitaoka's Rollers. Before their exposure to the Op Art images, participants were instructed either to fixate at the center of the image (fixation condition) or to explore the artwork (free viewing condition). Posture was measured for 30 s per condition using a body fixed sensor (accelerometer). The major finding of this study is that the two Op Art paintings induced a larger antero-posterior body sway both in terms of speed and displacement and an increased motion illusion in the free viewing condition as compared to the fixation condition. For body sway, this effect was significant for the Riley painting, while for motion illusion this effect was significant for Kitaoka's image. These results are attributed to macro-saccades presumably occurring under free viewing instructions, and most likely to the small vergence drifts during fixations following the saccades; such movements in interaction with visual properties of each image would increase either the illusory motion sensation or the antero-posterior body sway.

Spatial distribution of infection risk of SARS transmission in a hospital ward

Energy Technology Data Exchange (ETDEWEB)

Qian, Hua; Li, Yuguo [School of Energy and Environment, Southeast University, Nanjing, JiangSu (China); Nielsen, Peter V. [Department of Civil Engineering, Aalborg University, DK-9000 Aalborg (Denmark); Huang, Xinhua [Institute of Refrigeration and Cryogenics Engineering, Shanghai Jiaotong University, Shanghai (China)

2009-08-15

The classical Wells-Riley model for predicting risk of airborne transmission of diseases assumes a uniform spatial distribution of the infected cases in an enclosed space. A new mathematical model is developed here for predicting the spatial distribution of infection risk of airborne transmitted diseases by integrating the Wells-Riley equation into computational fluid dynamics. We applied our new integrated model to analyze a large nosocomial SARS outbreak in Hong Kong during the 2003 SARS epidemics, which was studied in the literature with regard to the association between airflow and SARS infection. The predicted numbers of infected cases of medical students in the same cubicle, the adjacent cubicle and the distant cubicle were 6.39, 0.78 and 0.2 respectively while the observed numbers of infected medical students in the three cubicles were 7, 0 and 0 respectively during the morning of March 6th, which was the highest attack period. The predicted numbers of infected cases of inpatients during the morning of March 6th in the same cubicle, the adjacent cubic and the distance cubicle were 7.8, 5.1, and 4.8 respectively which also agree well with the observed distribution of the infected inpatients during the entire infection period. The new developed model provides a new modelling tool for investigating the airborne transmission of diseases in enclosed spaces. The model is applicable when the susceptible stays mostly at the same location in an enclosed space during the infectious period, such as inpatients in a hospital ward, passengers in an airplane etc. (author)

Editorial

Directory of Open Access Journals (Sweden)

Wong-Riley M

2011-04-01

Full Text Available Margaret Wong-RileyMedical College of Wisconsin, Milwaukee, WI, USAThere is no doubt that we have long entered into an information explosion age, and the pace is escalating by the minute. Not only have the borders between disciplines been torn down, but there are no longer any barriers between counties, states, regions, countries, and continents. Knowledge is no longer reserved for a privileged few, but indeed can be shared by all. This freedom of information is what we cherish as scientists, but this information is much more valuable when screened first by experts before dissemination.

Direct HST Dust Lane Detection in Powerful Narrow-Line Radio Galaxies

Energy Technology Data Exchange (ETDEWEB)

Ramírez, Edgar A.; Aretxaga, Itziar [Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla (Mexico); Tadhunter, Clive N. [Department of Physics and Astronomy, University of Sheffield, Sheffield (United Kingdom); Lopez-Rodriguez, Enrique [NASA Ames Research Center, SOFIA Science Center, SOFIA/USRA, Mountain View, CA (United States); Department of Astronomy, University of Texas at Austin, Austin, TX (United States); McDonald Observatory, University of Texas at Austin, Austin, TX (United States); Packham, Chris, E-mail: e.ramirez@inaoep.mx [Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, TX (United States); National Astronomical Observatory of Japan, Tokyo (Japan)

2017-11-22

We present the analysis of near-infrared Hubble Space Telescope imaging of 10 Fanaroff Riley II powerful radio galaxies at low redshift (0.03 < z < 0.11) optically classified as narrow-line radio galaxies. The photometric properties of the host galaxy are measured using galfit, and compared with those from the literature. Our high resolution near-infrared observations provide new and direct information on the central kpc-scale dust lanes in our sample that could be connected to the pc-scale torus structure. Moreover, analyzing the infrared spectrograph Spitzer spectra of our sample, we suggest properties of the dust size of the torus.

2010 Precision Strike Annual Review Held in Springfield, Virginia on April 20-21, 2010

Science.gov (United States)

2010-04-21

Zakheim • Staff • Ms Kelly Frere • Mr Brian C Keller • Dr Toni Marechaux 8 Defense Science Board Addressing Urgent Needs Today Once an urgent need is...Eustis (Vigilante) Pinon (R) Ft Worth (R) Okeechobee (R ) Ft Ord (RMAX) Moffett (RMAX) Ft Irwin Santa Fe (R) A.P.Hill (RMAX,W,R) Robbins AFB (P) Ft Carson...A.P.Hill (RMAX,W,R) Robbins AFB (P) Ft Carson (S,W,R) Ft Riley (S,E) Dugway (H,S) Ft Lewis (S,W,R) 29 Palms (S,R) Trent Lott (Fire Scout) B-BAMS E

Refractory experience in circulating fluidized bed combustors, Task 7

Energy Technology Data Exchange (ETDEWEB)

Vincent, R.Q.

1989-11-01

This report describes the results of an investigation into the status of the design and selection of refractory materials for coal-fueled circulating fluidized-bed combustors. The survey concentrated on operating units in the United States manufactured by six different boiler vendors: Babcock and Wilcox, Combustion Engineering, Foster Wheeler, Keeler Dorr-Oliver, Pyropower, and Riley Stoker. Information was obtained from the boiler vendors, refractory suppliers and installers, and the owners/operators of over forty units. This work is in support of DOE's Clean Coal Technology program, which includes circulating fluidized-bed technology as one of the selected concepts being evaluated.

Refractory experience in circulating fluidized bed combustors, Task 7. Final report

Energy Technology Data Exchange (ETDEWEB)

Vincent, R.Q.

1989-11-01

This report describes the results of an investigation into the status of the design and selection of refractory materials for coal-fueled circulating fluidized-bed combustors. The survey concentrated on operating units in the United States manufactured by six different boiler vendors: Babcock and Wilcox, Combustion Engineering, Foster Wheeler, Keeler Dorr-Oliver, Pyropower, and Riley Stoker. Information was obtained from the boiler vendors, refractory suppliers and installers, and the owners/operators of over forty units. This work is in support of DOE`s Clean Coal Technology program, which includes circulating fluidized-bed technology as one of the selected concepts being evaluated.

Fuel quality and its effect on the design of power boilers in the USA

Energy Technology Data Exchange (ETDEWEB)

Kotler, V.R.

1984-05-01

Statistical data, taken from Power, Proceedings of the American Power Conference and others, on developments since the 1950s in boiler design caused by the increasing use of lower quality fuel (subbituminous and lignite coals) are presented. The effect of pollution regulations in the USA on boiler design is discussed. The results of a 16 year study by the TVA on the decrease in coal quality fired in its boilers and its effect on boiler efficiency are presented. Methods of transport are surveyed. Descriptions and characteristics of several modern boilers designed by Babcock and Wilcox, Combustion Engineering, Foster-Wheeler and Riley Stoker are given. 13 references.

Do variations in the composition and structure of vegetation allow floristic groups to be detected in a subtropical moist forest in southern Brazil?

Directory of Open Access Journals (Sweden)

João Paulo de Maçaneiro

2016-12-01

Full Text Available Variations in vegetation based on topographic location have become an interest of researchers. However, few studies have verified floristic associations related to the topographic position of a slope. In this work, we analyzed if variations in vegetation allow floristic groups to be detected in a subtropical moist forest. The vegetation was sampled in 25 plots of 400 m² distributed systematically, where individuals with a DBH ≥ 5.0 cm were measured. We sampled 1,727 individuals and 144 species. The NMDS ordination segregated three groups based on the topographic position of the slope (Monte Carlo, P ≥ 0.05; ANOSIM, P < 0.001. Euterpe edulis and Sloanea guianensis were notable in the lower and middle sections of the slope, whereas Ocotea aciphylla and Alchornea triplinervia were notable in the upper section. Some species were indicators of the analyzed sectors, such as Actinostemon concolor and Alsophila setosa in the lower section, Cyathea corcovadensis and Rudgea recurva in the middle section, and Myrcia pulchra and Podocarpus sellowii in the upper section. Our results indicate that the floristic and structural variations observed by Veloso and Klein (1959 and Klein (1980; 1984 for Vale do Itajaí in Santa Catarina are statistically valid today, because we verified the formation of different groups according to the topographic position of the slope.

A TROPICÁLIA: CULTURA E POLÍTICA NOS ANOS 60

Directory of Open Access Journals (Sweden)

Cláudio N.P. Coelho

1989-12-01

Full Text Available A Tropicália foi um dos movimentos artílsticos mais importantes dos anos 60, tendo sido interpretada como uma contestação radical às posições da esquerda, que neste período exercia forte influência sobre a produção cultural. A tese defendida por este artigo é a de que a Tropicália compartilhava a posição defendida pela esquerda de que a obra de arte deve ter por objeto a realidade brasileira e estar associada às lutas por mudanças revolucionárias, tendo construído, no entanto, uma versão própria desta posição. A Tropicália apresentava uma visão mais complexa da realidade brasileira do que a da esquerda, indicando a presença de uma combinação entre o arcaico e o moderno, enquanto a esquerda só enxergava o arcaico. A noção de Revolução defendida pela esquerda foi ampliada, com a incorporação da revolução nos comportamentos individuais às mudanças sociais. Do enraizamento na realidade que marcou o tropicalismo resultaram obras ainda hoje atuais como “Geléia Geral” de Gilberto Gil e “Tropicália” de Caetano Veloso.

THE CHARACTERIZATION OF DIDACTIC SPEECH OF A BIOLOGY TEACHER AND HIS INFLUENCE IN THE MOTIVATION OF STUDENTS FOR BIOLOGY

Directory of Open Access Journals (Sweden)

Lorena Bejarano Beltrán

2016-10-01

Full Text Available The Pedagogic practice is the staging of knowledge for consideration and recognition of acquired understanding in the academic and personal level that took place in the Commercial Technical School Manuela Beltran, showing that students present lack of motivation to learn Biology , which is expressed in the limited relationship between reality, scientific concepts together with the technical language. The experiments and innovation are left aside. This is why there is a question in relation to the didactic speech and motivation of seventh and eighth grade students towards Biology. In this way the didactic speech of the teacher has been characterized to allow the identification of elements that facilitate the teaching in terms of motivation. In the same way the space for recognizing the factors that generate in the students pleasure for the subject given, in which the games, the participation and the experiments were aspects that they will like to have in their classes. The present investigation had and interpretative paradigm and a qualitative perspective, such instruments like the nonparticipant observation,six recordings of Biology classes making analyses of information units where categories emerged, as well as a questionnaire applied to 25 students.

Síncope cardíaca reflexa por "nevralgia" do glossofaríngeo: rara apresentação dessa doença Cardiac syncope induced by glossopharyngeal "neuralgia": a rare presentation

Directory of Open Access Journals (Sweden)

Helio Korkes

2006-11-01

Full Text Available A primeira descrição de dor severa no trajeto do nervo glossofaríngeo foi realizada por Weisenberg, em 1910¹, em um paciente com tumor do ângulo ponto cerebelar. Entretanto, coube a Harris, em 1926², nomear como nevralgia do nervo glossofaríngeo esse raro quadro clínico, caracterizado por paroxismos de dor intensa, unilaterais, na região posterior da língua, no palato mole, na garganta e na região lateral e posterior da faringe, irradiando para o ouvido. A dor pode ser desencadeada por deglutição, tosse, bocejo ou mastigação e normalmente dura de segundos a minutos. A associaç��o de nevralgia do glossofaríngeo e síncope é muito rara e se deve a breves períodos de bradicardia, assistolia ou hipotensão, sendo a primeira descrição dessa associação, com essa fisiopatologia, realizada por Riley e cols., em 1942³.The first description of severe pain in the distribution of the glossopharyngeal nerve is credited to Weisenberg, in 1910¹, in a patient with cerebellopontine angle tumor. However, it was Harris, in 1926², who coined the term glossopharyngeal neuralgia to describe this rare condition characterized by paroxysms of excruciating pain located laterally at the back of the tongue, soft palate, throat, and lateral and posterior pharynx, radiating to the ear. Swallowing, coughing, yawning or chewing may trigger pain, which usually lasts from seconds to minutes. The association between glossopharyngeal neuralgia and syncope is very rare, being identified by brief episodes of bradycardia, asystole, and hypotension. Such an association, with this same pathophysiology, was first described by Riley et al³ in 1942.

X-ray study of a sample of FR0 radio galaxies: unveiling the nature of the central engine

Science.gov (United States)

Torresi, E.; Grandi, P.; Capetti, A.; Baldi, R. D.; Giovannini, G.

2018-06-01

Fanaroff-Riley type 0 radio galaxies (FR0s) are compact radio sources that represent the bulk of the radio-loud active galactic nuclei (AGN) population, but they are still poorly understood. Pilot studies on these sources have been already performed at radio and optical wavelengths: here we present the first X-ray study of a sample of 19 FR0 radio galaxies selected from the Sloan Digital Sky Survey/NRAO VLA Sky Survey/Faint Images of the Radio Sky at Twenty-cm sample of Best & Heckman, with redshift ≤0.15, radio size ≤10 kpc, and optically classified as low-excitation galaxies. The X-ray spectra are modelled with a power-law component absorbed by Galactic column density with, in some cases, a contribution from thermal extended gas. The X-ray photons are likely produced by the jet as attested by the observed correlation between X-ray (2-10 keV) and radio (5 GHz) luminosities, similar to Fanaroff-Riley type I radio galaxies (FRIs). The estimated Eddington-scaled luminosities indicate a low accretion rate. Overall, we find that the X-ray properties of FR0s are indistinguishable from those of FRIs, thus adding another similarity between AGN associated with compact and extended radio sources. A comparison between FR0s and low-luminosity BL Lacs rules out important beaming effects in the X-ray emission of the compact radio galaxies. FR0s have different X-ray properties with respect to young radio sources (e.g. gigahertz-peaked spectrum/compact steep spectrum sources), generally characterized by higher X-ray luminosities and more complex spectra. In conclusion, the paucity of extended radio emission in FR0s is probably related to the intrinsic properties of their jets that prevent the formation of extended structures, and/or to intermittent activity of their engines.

Mineralogical Controls over Carbon Storage and Residence Times in Grassland Soils

Science.gov (United States)

Dwivedi, D.; Riley, W. J.; Torn, M. S.; Spycher, N.

2014-12-01

Globally, soil organic matter (SOM) contains approximately three times more carbon than the atmosphere and terrestrial vegetation contain combined. However, it is not well understood why some SOM persists for a long time while other SOM decomposes quickly. For future climate predictions, representing soil organic matter (SOM) dynamics accurately in Earth system models is essential. Soil minerals stabilize organic carbon in soil; however, there are gaps in our understanding of how soil mineralogy controls the quantity and turnover of long-residence-time organic carbon. To investigate the impact of soil mineralogy on SOM dynamics, we used a new model (Biotic and Abiotic Model of SOM—BAMS1 [Riley et al., 2014]) integrated with a three-dimensional, multiphase reactive transport solver (TOUGHREACT). The model represents bacterial and fungal activity, archetypal polymer and monomer carbon substrate groups, aqueous chemistry, gaseous diffusion, aqueous advection and diffusion, and adsorption and desorption processes. BAMS1 can predict bulk SOM and radiocarbon signatures without resorting to an arbitrary depth-dependent decline in SOM turnover rates. Results show a reasonable match between observed and simulated depth-resolved SOM and Δ14C in grassland ecosystems (soils formed on terraces south of Eureka, California, and the Central Chernozem Region of Russia) and were consistent with expectations of depth-resolved profiles of lignin content and fungi:aerobic bacteria ratios. Results also suggest that clay-mineral surface area and soil sorption coefficients constitute dominant controls over organic carbon stocks and residence times, respectively. Bibliography: Riley, W.J., F.M. Maggi, M. Kleber, M.S. Torn, J.Y. Tang, D. Dwivedi, and N. Guerry (2014), Long residence times of rapidly decomposable soil organic matter: application of a multi-phase, multi-component, and vertically resolved model (BAMS1) to soil carbon dynamics, Geoscientific Model Development, vol. 7, 1335

Les répétitifs, la machine et l’instrument

Directory of Open Access Journals (Sweden)

Johan Girard

2011-03-01

Full Text Available La poétique des compositeurs répétitifs américains Terry Riley, Steve Reich et Philip Glass repose sur des usages spécifiques de l’instrument de musique. C’est tout d’abord l’indigence des ressources instrumentales et le recours à des instruments de fortune, comme l’orgue électrique. C’est également l’usage de l’amplification dans la composition du timbre et le traitement percussif des instruments à clavier, en particulier chez Steve Reich. Enfin, le « transfert » de structures issues de la musique pour bande vers l’écriture traditionnelle détermine les choix et les usages de l’instrument, par des mises en boucle, des effets d’accumulation, un jeu sur l’indiscernabilité des timbres et une attention aux plus infimes détails émergeant de la répétitivité du jeu, de sorte que les choix esthétiques des trois compositeurs impliquent une gestion spécifique de l’instrument de musique.« Repetitive Music, the machine and the instrument ». The poetics of American repetitive composers Terry Riley, Steve Reich and Philip Glass are based on a specific use of musical instruments. First we can notice the use of indigent instrumental means and rudimentary instruments like the electric organ. Second we point out the use of amplification in timbre composition and the percussive use of keyboard instruments (particularly in Steve Reich’s work. Finally, a structural “transfer” from tape music to traditional musical composition determines the choices and uses of musical instruments, trough tape looping, accumulation effects and a play on timbre indiscernibility that brings attention to the most subtle details emerging from repetition, so that the three composers’ aesthetic choices imply a specific relation to musical instruments.

Las especies de Trichogramma de Uruguay (Hymenoptera: Trichogrammatidae Trichogramma species from Uruguay (Hymenoptera: Trichogrammatidae

Directory of Open Access Journals (Sweden)

César Basso

2004-07-01

Full Text Available Fueron recolectadas cinco especies de Trichogramma Westwood en Uruguay. La más ampliamente distribuida T. pretiosum Riley parasita Diatraea saccharalis (Fabricius, Heliothis zea (Boddie, Alabama argillacea (Hübner y Argyrotaenia sphaleropa (Meyrick. Trichogramma exiguum Pinto & Platner, a menudo confundida con T. fuentesi Torre, parasitan Bonagota cranaodes (Meyrick y A. sphaleropa. Otras dos especies T. galloi Zucchi y T. distinctum Zucchi parasita D. saccharalis. Ellas presentan una morfología relativamente similar y, de acuerdo a la información disponible, no es posible decidir si son especies próximas o sinónimas. Finalmente, T. bellaunionense Basso & Pintureau fue recolectada en Uruguay hasta el momento sólo sobre D. saccharalis. Se provee una clave ilustrada para determinar esas cinco especies. Por otra parte, se incluye una revisión del uso actual y proyectado de Trichogramma para controlar diferentes plagas en diversos cultivos en este país.Five Trichogramma Westwood species were collected in Uruguay. The widely distributed T. pretiosum Riley parasitizes Diatraea saccharalis (Fabricius, Heliothis zea (Boddie, Alabama argillacea (Hübner and Argyrotaenia sphaleropa (Meyrick. Trichogramma exiguum Pinto & Platner, often confused with T. fuentesi Torre, parasitizes Bonagota cranaodes (Meyrick and A. sphaleropa. The two species T. galloi Zucchi and T. distinctum Zucchi parasitize D. saccharalis. Their morphology is relatively close and, from the information available, it is not possible to decide if they are closely related species or synonymous species. Finally, up to now, T. bellaunionense Basso & Pintureau was only collected from Uruguay on D. saccharalis. An illustrated key is provided to identify these five species. Moreover, the present and expected use of Trichogramma to control different pests in different Uruguayan crops is reviewed.

The Financial Impact of Emergency Department Crowding

Directory of Open Access Journals (Sweden)

Foley, Mathew

2011-05-01

Full Text Available Objective: The economic benefits of reducing emergency department (ED crowding are potentially substantial as they may decrease hospital length of stay. Hospital administrators and public officials may therefore be motivated to implement crowding protocols. We sought to identify a potential cost of ED crowding by evaluating the contribution of excess ED length of stay (LOS to overall hospital length of stay. Methods: We performed a retrospective review of administrative data of adult patients from two urban hospitals (one county and one university in Brooklyn, New York from 2006-2007. Data was provided by each facility. Extrapolating from prior research (Krochmal and Riley, 2005, we determined the increase in total hospital LOS due to extended ED lengths of stay, and applied cost and charge analyses for the two separate facilities. Results: We determined that 6,205 (5.0% admitted adult patients from the county facility and 3,017 (3.4% patients from the university facility were held in the ED greater than one day over a one-year period. From prior research, it has been estimated that each of these patient’s total hospital length of stay was increased on average by 11.7% (0.61 days at the county facility, and 0.71 days at the university facility. The increased charges over one year at the county facility due to the extended ED LOS was therefore approximately $9.8 million, while the increased costs at the university facility were approximately $3.9 million. Conclusion: Based on extrapolations from Krochmal and Riley applied to two New York urban hospitals, the county hospital could potentially save $9.8 million in charges and the university hospital $3.9 million in costs per year if they eliminate ED boarding of adult admitted patients by improving movement to the inpatient setting. [West J Emerg Med. 2011;12(2:192-197.

Report examines links among women's equality, smaller families, healthier children.

Science.gov (United States)

1997-06-01

This article reports on a new study by Nancy Riley about the relationship between gender equality and fertility and mortality declines in developing countries. Findings indicate that mortality and fertility has declined in countries without gender equality. Fertility and child mortality decline is related to women's educational status and employment. Riley argues that women's power to make decisions about health care, contraception, and the timing and number of children, if affected by education and paid employment, is more likely to lower mortality and fertility. Women's power may decline in countries where women's education and employment are advanced, but their role in society remains that of mothers. All developing countries showed a relationship between the amount of education and family size and child health. Fertility tends to be lowest among highly educated women. However, women's education has a stronger effect on child health and mortality. Maternal education also affects child nutritional status. Women's education offers women the option of job opportunities and new values or ideas. Women's employment may result in increased resources and status or in poverty and heavy physical labor. Societal views of women's work may reflect an increased self-worth for working women or lower status or the failure of a husband to adequately provide for family welfare. The key to the impact of women's employment is whether work becomes a way to achieve greater power for women in decision making about child welfare and family planning. Employment outside the home educates. In most countries, women who worked for cash had fewer children, but differences in fertility between working and nonworking women range from small to large. Higher income for Nigerian women means more children. Women's work also has inconsistent effects on child health.

Denitrification activity is closely linked to the total ambient Fe concentration in mangrove sediments of Goa, India

Digital Repository Service at National Institute of Oceanography (India)

Fernandes, S.O.; Gonsalves, M.J.B.D.; Michotey, V.D.; Bonin, P.C.; LokaBharathi, P.A.

hot air oven at 60 ± 2 ºC for 48 h. Total organic carbon (TOC) was then determined by wet oxidation method (El Wakeel and Riley, 1957) with a precision of 0.01%. Sub-samples for metal analyses were also dried at 60 ± 2oC for 48 h and disaggregated... was observed at Divar where TOC varied from 1.65 ± 1.37 % at 4-6 cm during monsoon to 4.88 ± 2.76 % at 2-4 cm during the post-monsoon (Fig. 3b; Table S2). Sediment Fe values at Tuvem ranged from 4.45 ± 3.70 % at 0-2 cm to 9.28 ± 4.33 % at 4-6 cm during...

FIST - a suite of X-ray powder crystallography programs for use with a HP-65 calculator

International Nuclear Information System (INIS)

Ferguson, I.F.; Turek, M.

1977-12-01

Programs for X-ray powder crystallography are defined for use with a Hewlett Packard HP-65 (programmable) pocket calculator. These include the prediction of all Bragg reflections for defined P-, F-, I-cubic, tetragonal, hexagonal and orthorhombic cells; the calculation of the position of a specific Bragg reflection from defined unit cells with all symmetries except triclinic; interconversion of theta, 2theta, sin 2 theta and d, as well as the calculation of the Nelson-Riley function; the computation of crystal densities; the interconversion of rhombohedral and hexagonal unit cells, lsub(c) determinations for graphite, the calculation of a and c for boron carbide; and Miller index transformations between various unit cells. (author)

A Rating Scale for the Functional Assessment of Patients with Familial Dysautonomia (Riley Day Syndrome)

Science.gov (United States)

Axelrod, Felicia B.; Rolnitzky, Linda; von Simson, Gabrielle Gold; Berlin, Dena; Kaufmann, Horacio

2012-01-01

Objective To develop a reliable rating scale to assess functional capacity in children with familial dysautonomia, evaluate changes over time and determine whether severity within a particular functional category at a young age affected survival. Study design Ten functional categories were retrospectively assessed in 123 patients with familial dysautonomia at age 7 years ± 6 months. Each of the ten Functional Severity Scale (FuSS) categories (motor development, cognitive ability, psychological status, expressive speech, balance, oral coordination, frequency of dysautonomic crisis, respiratory, cardiovascular and nutritional status) was scored from 1 (worst or severely affected) to 5 (best or no impairment). Changes over time were analyzed further in 22 of the 123 patients who were also available at ages 17 and 27 years. Results Severely impaired cardiovascular function and high frequency of dysautonomic crisis negatively affected survival (p<0.005 and p<0.001, respectively). In the 22 individuals followed up to age 27 years, psychological status significantly worsened (p=0.01), and expressive speech improved (p=0.045). From age 17 to 27 years, balance worsened markedly (p =0.048). Conclusion The FuSS scale is a reliable tool to measure functional capacity in patients with familial dysautonomia. The scale may prove useful in providing prognosis and as a complementary endpoint in clinical trials. PMID:22727867

Sala de aula interativa

Directory of Open Access Journals (Sweden)

Simone Ferreira Conforto

2017-02-01

Full Text Available Marco Silva, neste livro fantástico e futurista, nos traz uma tremenda reflexão, desde a chamada "Terceira Revolução Industrial", em meados da década de 1970, caracterizada por uma "Revolução da Informática" e a emergência de "novos materiais", entre os quais as fibras óticas e os materiais sintéticos (VELOSO, 1989, que o mundo tem passado por uma série de transformações históricas com consequências diretas para o modo de se pensar, sentir e agir, e que por sua vez, tendem a provocar outras tantas transformações no âmbito da própria história. Foi assim que ocorrerá um aumento no volume e no fluxo da troca de informações e de relações econômicas, sociais e interpessoais numa intensidade inédita na história. A mudança foi de tal dimensão que se passou a falar de uma nova sociedade da informática (SCHAFF, 1990, caracterizada pela introdução da informática de modo a não se poder pensar esta sociedade sem aquela. Particularmente no âmbito desta chamada "Revolução da Informática", o que se observa é a emergência de uma nova forma de se comunicar, caracterizada pela interatividade e a cibercultura.

First record of Loricifera from the Iberian Peninsula, with the description of Rugiloricus manuelae sp nov., (Loricifera, Pliciloricidae)

DEFF Research Database (Denmark)

Pardos, Fernando; Kristensen, Reinhardt Møbjerg

2013-01-01

., was investigated with both light (DIC) and electron microscopy (SEM). Complete descriptions of both adult and larval stages are provided, including mapping of the introvert scalids for both stages. Information from a molting stage with an adult male inside confirms conspecificity of larvae and adults. The presence...

Modified method of perturbed stationary states. II. Semiclassical and low-velocity quantal approximations

International Nuclear Information System (INIS)

Green, T.A.

1978-10-01

For one-electron heteropolar systems, the wave-theoretic Lagrangian of Paper I 2 is simplified in two distinct approximations. The first is semiclassical; the second is quantal, for velocities below those for which the semiclassical treatment is reliable. For each approximation, unitarity and detailed balancing are discussed. Then, the variational method as described by Demkov is used to determine the coupled equations for the radial functions and the Euler-Lagrange equations for the translational factors which are part of the theory. Specific semiclassical formulae for the translational factors are given in a many-state approximation. Low-velocity quantal formulae are obtained in a one-state approximation. The one-state results of both approximations agree with an earlier determination by Riley. 14 references

Reseñas/Book Reviews

Directory of Open Access Journals (Sweden)

Book Review Editor, Barbara Hogenboom

2012-10-01

Full Text Available Pistoleros and Popular Movements. The Politics of State Formation in Postrevolutionary Oaxaca, by Benjamin T. Smith; reviewed by Wil Pansters, p.128Exceptional Violence. Embodied Citizenship in Transnational Jamaica, by Deborah A. Thomas; reviewed by Gert Oostindie, p. 130The Guatemala Reader: History, Culture, Politics (The Latin America Readers, compilado por Greg Grandin, Deborah T. Levenson, Elizabeth Oglesby; reviewed by Manuela Camus, p. 131The Resurgence of the Latin American Left, edited by Steven Levitsky and Kenneth M. Roberts; reviewed by Peadar Kirby, p. 133Latin America in the 21st Century: Nations, Regions, Globalization, by Gian Luca Gardini; reviewed by Daniel Hellinger, p. 134The New Politics of Protest, by Roberta Rice; reviewed by Michiel Baud, p. 136Mercury, mining and empire. The human and ecological cost of colonial silver mining in the Andes, por Nicholas Robins; reviewed by Raquel Gil Montero, p. 138Bolivia. Refounding the Nation, by Kepa Artaraz; reviewed by Isabella Margerita Radhuber, p. 139Allende’s Chile and the Inter-American Cold War, by Tanya Harmer; reviewed by Gisela Cramer, p. 141The Politics of Sexuality in Latin America. A Reader on Lesbian, Gay, Bisexual, and Transgender Rights, compilado por Javier Corrales y Mario Pecheny; reviewed by José Carlos G. Aguiar, p. 144

Parasitismo de Trichogramma pretiosum em ovos da traça-das-crucíferas sob diferentes temperaturas Parasitism of Trichogramma pretiosum on diamondback moth eggs under different temperatures

Directory of Open Access Journals (Sweden)

Dirceu Pratissoli

2004-12-01

Full Text Available Estudou-se a capacidade de parasitismo de Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae, em ovos de Plutella xylostella (L.(Leptoptera: Plutellidae nas temperaturas de 18; 20; 22; 25; 28; 30 e 32ºC, avaliando-se número de ovos parasitados diariamente, porcentagem acumulada de parasitismo, número total de ovos parasitados por fêmea e longevidade de fêmeas. O ritmo de parasitismo durante as primeiras 24 horas, oscilou de 1,6 a 16 ovos parasitados por fêmea de T. pretiosum nas temperaturas entre 18 e 32ºC. O parasitismo acumulado de ovos de P. xylostella, nas temperaturas de 18; 20; 22; 25; 28; 30 e 32ºC, atingiu 80%, aos 2; 16; 11; 3; 5; 4 e 7 dias, por T. pretiosum. As maiores taxas de parasitismo ocorreram nas faixas térmicas de 25; 28 e 30ºC. A longevidade média de fêmeas de T. pretiosum nas faixas térmicas compreendidas entre 18 e 32ºC, variaram de 2,3 a 13,3 dias.The parasitism capacity of Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae on eggs of Plutella xylostella (L. (Lepidoptera: Plutellidae was studied, under temperatures of 18; 20; 22; 25; 28; 30 and 32°C aiming to evaluate the number of days with parasitism, cumulated parasitism, total number of eggs parasitized per female and their longevity. Parasitism during the first 24 hours ranged from 1.6 to 16 eggs of P. xylostella per T. pretiosum female in the range of 18 to 32°C. Cumulated egg parasitism of P. xylostella by T. pretiosum reached 80% after 2; 16; 11; 3; 5; 4 and 7 days at 18; 20; 22; 25; 28; 30 and 32°C. Higher parasitism rates were recorded at 25; 28 and 30°C while longevity of T. pretiosum females varied from 2.3 to 13.3 days under temperatures of 18 to 32°C.

Características biológicas de linhagens de Trichogramma pretiosum, criados em ovos de Sitotroga cerealella e Anagasta kuehniella Biological characteristics of Trichogramma pretiosum lineages, reared in Anagasta kuehniella and Sitotroga cerealella eggs

Directory of Open Access Journals (Sweden)

Dirceu Pratissoli

2004-09-01

Full Text Available Avaliaram-se as características biológicas de cinco linhagens de T. pretiosum Riley (Hym.:Trichogrammatidae, coletadas em plantios comerciais de tomate, e criados em ovos de A. kuehniella (Zeller e S. cerealella (Olivier. A taxa de parasitismo das cinco linhagens variou de 56,1 a 68,6%, quando o hospedeiro foi A. kuehniella, sendo superior à do hospedeiro S. cerealella. A viabilidade de todas as linhagens, quando criadas em ovos de S. cerealella, foi superior a 90%; no entanto, somente nas linhagens provenientes de Afonso Cláudio e Venda Nova do Imigrante é que a viabilidade das linhagens de Trichogramma criadas em ovos de S. cerealella, foram significativamente maiores que as criadas sobre A. kuehniella. A longevidade dos descendentes submetidos ao parasitismo foi superior para todas as linhagens quando criadas em ovos de A. kuehniella. Ambos os hospedeiros podem ser empregados na criação massal das cinco linhagens estudadas. Contudo, tomando-se por base a taxa de parasitismo e a qualidade da progênie, o hospedeiro A. kuehniella demonstrou ser superior a S. cerealella.The biological characteristics of five lineages of T. pretiosum Riley (Hym.: Trichogrammatidae, collected from tomato crops, and reared in A. kuehniella (Zeller and S. cerealella (Olivier eggs were evaluated. The parasitism rate of the lineages, varied from 56,1 to 68.6%, when the host was A. kuehniella, being higher than for S. cerealella. The viability of all lineages, when reared in S. cerealella eggs, was superior to 90%; however, only those lineages reared in S. cerealella eggs and collected in Afonso Cláudio and Venda Nova dos Imigrantes (Espirito Santo State, Brazil were significantly higher than those reared on A. kuehniella. The longevity of the offspring submitted to the parasitism, was higher in all the lineages reared in A. kuehniella eggs. All five lineages can be mass reared using both hosts. However, considering the parasitism rate and the quality of the

Attractive and Repulsive Forces on Particles in Oscillatory Flow

Science.gov (United States)

Agarwal, Siddhansh; Rallabandi, Bhargav; Raju, David; Thameem, Raqeeb; Hilgenfeldt, Sascha

2016-11-01

A large class of oscillating flows gives rise to rectified streaming motion of the fluid. It has recently been shown that particle transport in such flows, excited by bubbles oscillating at ultrasound frequencies, leads to differential displacement and efficient sorting of microparticles by size. We derive a general expression for the instantaneous radial force experienced by a small spherical particle in the vicinity of an oscillating interface, and generalize the radial projection of the Maxey-Riley equation to include this effect. Varying relevant system parameters, we show that the net effect on the particle can be either an attraction to or a repulsion from the bubble surface, depending in particular on the particle size and the particle/fluid density contrast. We demonstrate that these predictions are in agreement with a variety of experiments.

Ladders to Leadership: What Camp Counselor Positions Do for Youth

Directory of Open Access Journals (Sweden)

Darcy Tessman

2012-09-01

Full Text Available The 4-H youth development organization understands and has recognized residential camping as one of the major modes of program delivery. Primary benefactors of the residential camping program are those youth who serve as camp counselors. Not only are they recipients of the educational program, but also supervise and teach younger campers (Garst & Johnson, 2005; McNeely, 2004. As a result of their experience, camp counselors learn about and develop leadership and life skills (Thomas, 1996; Purcell, 1996. The residential camping experience allows youth to serve as volunteers through their role as camp counselors. In addition to the benefits earned from their volunteer role, residential camping provides youth camp counselors the opportunity to gain leadership skills (Arnold, 2003 as well as add to the camp structure, planning, and implementation (Hines & Riley, 2005.

Potential role of immunotherapy in advanced non-small-cell lung cancer

Directory of Open Access Journals (Sweden)

de Mello RA

2016-12-01

Full Text Available Ramon Andrade de Mello,1–3 Ana Flávia Veloso,4 Paulo Esrom Catarina,4 Sara Nadine,5 Georgios Antoniou6 1Department of Biomedical Sciences and Medicine, University of Algarve, Faro, 2Faculty of Medicine, University of Porto, Porto, Portugal; 3Research Center, Cearense School of Oncology, Instituto do Câncer do Ceará, 4Oncology & Hematology League, School of Medicine, State University of Ceará (UECE, Fortaleza, Brazil; 5Instituto de Ciências Biomédicas Abel Salazar (ICBAS, University of Porto, Porto, Portugal; 6Department of Medical Oncology, The Royal Marsden NHS Foundation Trust, London, UK Abstract: Immuno checkpoint inhibitors have ushered in a new era with respect to the treatment of advanced non-small-cell lung cancer. Many patients are not suitable for treatment with epidermal growth factor receptor tyrosine kinase inhibitors (eg, gefitinib, erlotinib, and afatinib or with anaplastic lymphoma kinase inhibitors (eg, crizotinib and ceritinib. As a result, anti-PD-1/PD-L1 and CTLA-4 inhibitors may play a novel role in the improvement of outcomes in a metastatic setting. The regulation of immune surveillance, immunoediting, and immunoescape mechanisms may play an interesting role in this regard either alone or in combination with current drugs. Here, we discuss advances in immunotherapy for the treatment of metastatic non-small-cell lung cancer as well as future perspectives within this framework. Keywords: immunotherapy, non-small-cell lung cancer, nivolumab, pembrolizumab, ipilimumab, clinical trials, PD1, PDL1, CTLA4

Das citações (indiretas na discursividade do voto de Carlos Ayres Britto acerca da união homoafetiva: efeitos de sentido possíveis

Directory of Open Access Journals (Sweden)

Lígia NEGRI

2015-06-01

Full Text Available Neste artigo, trazemos o acontecimento que o voto do ministro relator Carlos Ayres Britto funda pela sua enunciação, no Supremo Tribunal Federal, referente à recente (2011 questão da união homoafetiva no Brasil, tendo como corpus de análise as citações (indiretas extraídas de afirmações de personalidades célebres (Platão, Max Scheler, Descartes, Fernando Pessoa, Nietzsche, Hegel, Jung, Caetano Veloso, Rui Barbosa, Spinoza, Sartre e Chico Xavier, postas em jogo na materialidade linguística. Discutimos os efeitos de sentido possíveis delas decorrentes, mediante a perspectiva da Análise do Discurso de orientação francesa, tendo em conta os aspectos relevantes das condições de produção do discurso, sem deixarmos de aventar os efeitos de articulação entre citações e enunciados que as circunscrevem no voto, paralelismos etc. Lançaremos, ainda, breve olhar sobre o ethos do sujeito do discurso, a partir dos efeitos de sentido das citações. Dentre outras avaliações e reflexões, concluiremos que o discurso tem como argumento maior o amor, confrontando uma FD (Formação Discursiva prototípica do judiciário, inclusive nas menções a interdiscursos religiosos. Para nosso exercício analítico, contamos especialmente com Possenti (2009, 2002, Eni Orlandi (2009, 2006, Foucault (2010, 2009, Maingueneau (1997 e Pêcheux (2009, para que constituam nosso aporte teórico.

HUMAN TRAFFICKING DRUG TRAFFICKING, AND THE DEATH PENALTY

Directory of Open Access Journals (Sweden)

Felicity Gerry

2016-12-01

Full Text Available Both Australia and Indonesia have made commitments to combatting human trafficking.  Through the experience of Mary Jane Veloso it can be seen that it is most often the vulnerable ‘mule’ that is apprehended by law enforcement and not the powerful leaders of crime syndicates. It is unacceptable that those vulnerable individuals may face execution for acts committed under threat of force, coercion, fraud, deception or abuse of power. For this reason it is vital that a system of victim identification is developed, including better training for law enforcement, legal representatives and members of the judiciary. This paper builds on submissions by authors for Australian Parliamentary Inquiry into Human Trafficking, and focusses on issues arising in the complex cross section of human trafficking, drug trafficking, and the death penalty with particular attention on identifying victims and effective reporting mechanisms in both Australia and Indonesia. It concludes that, in the context of human trafficking both countries could make three main improvements to law and policy, among others, 1 enactment of laws that create clear mandatory protection for human trafficking victims; 2 enactment of criminal laws that provides complete defence for victim of human trafficking; 3 enactment of corporate reporting mechanisms. Systemic protection and support is not sufficiently available without clear legislative protection as this paper suggests together with standardised referral mechanisms and effective financial reporting mechanisms. The implementation can be achieved through collaborative responses and inter-agency coordination with data collection and properly trained specialists.

Natural gas reburning technology for NOx reduction from MSW combustion systems

International Nuclear Information System (INIS)

Penterson, C.A.; Abbasi, H.; Khinkis, M.J.; Wakamura, Y.; Linz, D.G.

1990-01-01

A technology for reducing emissions from municipal solid waste combustion systems through advanced combustion techniques is being developed. Pilot testing of natural gas reburning was first performed in the Institute of Gas Technology's pilot-scale furnace under conditions simulating the firing of 1.7 x 10 6 Btu/hr (0.5 MWth) of MSW. Pilot testing then continued in Riley Stoker Corporation's 3 x 10 6 Btu/hr (0.88 MWth), 7 ton/day, pilot-scale MSW combustor using actual MSW in both test series, injection of up to 15% (HHV basis) natural gas reduced NO, by 50--70% while maintaining or improving combustion efficiency as measured by CO and hydrocarbon emissions and temperature stability. This paper will review the test results and discuss the status of the full-scale field demonstration testing that is planned for 1990

Assessing Installation Ethnobotanical Resources Using Land Condition Trend Analysis (LCTA) Data: A Fort Riley, Kansas, Case Study

Science.gov (United States)

1998-07-01

incarnata S F Carya illinoensis G L Asclepias stenophylla S B Ceanothus herbaceus S B Asclepias syriaca S B Ceanothus oliganthus S L Asclepias tuberosa S...cannabinum S B Carex retroflexa G F Argemone polyanthemos S F Carex vulpinoidea S F Artemisia ludoviciana S B Carya cordiformis S B Asclepias...longipilum G B Descurainia pinnata S F Hordeum pusillum G F Descurainia sophia S F Hymenopappus scabiosaeus G B Desmanthus illinoensis S B Hypericum

Os limites do sentido no ensino da matemática The limits of meaning in the teaching of mathematics

Directory of Open Access Journals (Sweden)

Maria da Conceição Ferreira Fonseca

1999-06-01

Full Text Available Em Os Limites do Sentido (1995, Eduardo Guimarães analisa os esforços de se resgatar a questão da significação nos estudos lingüísticos como gestos de incluir, no seu objeto, elementos que Saussure deliberadamente excluiu: o sujeito, o mundo e a história. Já no artigo As possibilidades de inovação no ensino-aprendizagem da matemática elementar, Manuela David (1995 faz um apanhado das tendências do ensino de Matemática que lhe parecem mais expressivas, no Brasil, observando que todas elas, na busca de um sentido, ultrapassam os conteúdos matemáticos. Neste trabalho, parodiando o texto de Guimarães, tomaremos tais tendências atuais do ensino da Matemática (a resolução de problemas, a modelagem, o construtivismo, a etnomatemática e o que David chama de um ensino comprometido com as transformações sociais, visando identificar nelas esse movimento de busca de um sentido para o ensinar matemática, por meio da re-inclusão daqueles mesmos elementos excluídos por Saussure da Lingüística, e negligenciados por abordagens mais tradicionais da matemática escolar. A análise procura apontar como essa busca de sentido no ensino da matemática trilha um percurso análogo ao que Guimarães identifica nos estudos da linguagem: o esforço de re-incluir na abordagem da matemática escolar aquilo que dela foi tradicionalmente excluído: o objeto, o sujeito e a história.In The Limits of Meaning (Os Limites do Sentido, 1995, Eduardo Guimarães analyzes the efforts to rescue the issue of meaning in linguistic studies as a movement to include in their object elements that Saussure had deliberately excluded: the subject, the world and the history. In the paper The possibilities for innovation in the teaching-learning of elementary mathematics (As possibilidades de inovação no ensino-aprendizagem da matemática elementar, 1995, Manuela David collects what she considered to be the most expressive trends in the current teaching of

Ergonomía y Terapia Ocupacional = Ergonomics and Occupational Therapy

Directory of Open Access Journals (Sweden)

Guzman Suárez, Olga Beatriz

2008-02-01

Full Text Available RESUMENEn éste artículo se dan a conocer algunas de las aplicaciones más importantes de la ergonomía en Terapia Ocupacional, puesto que a pesar de tener un gran reconocimiento en el sector trabajo, en donde hay un mayor predominio de estudio por parte de la ergonomía, aún se desconocen muchas de las actividades que pueden ser realizadas por éstos profesionales. Terapia Ocupacional abarca el estudio de todas las etapas de la vida del individuo, en cuanto a su desempeño ocupacional se refiere, lo cual garantiza un amplio campo de actuación profesional, que permite profundizar e investigar en diversas áreas, para que desde su experiencia y resultados se facilite el aporte a muchos proyectos de investigación que requieren de conceptos que son transversales a diferentes disciplinas y que pueden constituirse en conocimiento nuevo para la sociedad científica. Con la creación del Grupo de Salud Ocupacional y Ergonomía en la Universidad Manuela Beltrán, se pretende “Desarrollar proyectos de investigación en el campo de la ergonomía, aplicables en los contextos: laboral, escolar, social y familiar; que permitan la adaptación de diferentes entornos al ser humano y a su vez mejorar condiciones tendientes al logro de un óptimo desempeño y productividad”[1]. De esta manera, se inician proyectos de investigación con estudiantes de Terapia Ocupacional, cuyos avances han permitido escribir el presente articulo, se espera además la vinculación de otras áreas para su fortalecimiento. ABSTRACTIn this article they bring themselves to light some of the most important applications of the ergonomics in occupational therapy, since in spite of having a great recognition in the work sector, where there is a greater predominance of study on the part of the ergonomics, still many of the activities they do not know themselves that can be carried out for these professionals. The occupational therapy covers the study of all the phases of the life of

Geochemistry of sediments from the Mangalore-Cochin shelf and upper slope off southwest India: Geological and environmental factors controlling dispersal of elements

Digital Repository Service at National Institute of Oceanography (India)

Paropkari, A.L

according to the method of Shull and Guthan (1967) and Fe and Ti were estimated by the method of Riley (1958). 102 A.L. PAROPKARI o / / °_- ~ ,~"/J" ~ J " o , 6 0 v _~ ^ ° 0 ~ T ~f _\\] °)° .... o~1 r Jj I • • • • • et i~ I jg ~ j n I fl... >.-:.--.:.:.: .~"~ lb- • • • • • • • • • • • • • N • • • • • • • • • • • • • • • • • .... ~- ° ° • ° i • "~° • °oe °eee° • • • • • e°e • • • • ao t0~'. ,l.I.il ~1~1'1~ • • • • • • B • • i ~..-.. ~ o ° 0 ~oeo oo eee eoeooeoe°oeell ( eooeoeeoe ~1 ~ oeoe*oeool~l~l...

Specially designed B4C/SnO2 nanocomposite for photocatalysis: traditional ceramic with unique properties

Science.gov (United States)

Singh, Paviter; Kaur, Gurpreet; Singh, Kulwinder; Singh, Bikramjeet; Kaur, Manpreet; Kaur, Manjot; Krishnan, Unni; Kumar, Manjeet; Bala, Rajni; Kumar, Akshay

2018-02-01

Boron carbide: A traditional ceramic material shows unique properties when explored in nano-range. Specially designed boron-based nanocomposite has been synthesized by reflux method. The addition of SnO2 in base matrix increases the defect states in boron carbide and shows unique catalytic properties. The calculated texture coefficient and Nelson-Riley factor show that the synthesized nanocomposite has large number of defect states. Also this composite is explored for the first time for catalysis degradation of industrial used dyes. The degradation analysis of industrial pollutants such as Novacron red Huntsman (NRH) and methylene blue (MB) dye reveals that the composite is an efficient catalyst. Degradation study shows that 1 g/L catalyst concentration of B4C/SnO2 degrades NRH and MB dye up to approximately 97.38 and 79.41%, respectively, in 20 min under sunlight irradiation. This water-insoluble catalyst can be recovered and reused.

Determination of Microstructural Parameters of Nanocrystalline Hydroxyapatite Prepared by Mechanical Alloying Method

Science.gov (United States)

Joughehdoust, Sedigheh; Manafi, Sahebali

2011-12-01

Hydroxyapatite [HA, Ca10(PO4)6(OH)2] is chemically similar to the mineral component of bones and hard tissues. HA can support bone ingrowth and osseointegration when used in orthopaedic, dental and maxillofacial applications. In this research, HA nanostructure was synthesized by mechanical alloying method. Phase development, particle size and morphology of HA were investigated by X-ray diffraction (XRD) pattern, zetasizer instrument, scanning electron microscopy (SEM), respectively. XRD pattern has been used to determination of the microstructural parameters (crystallite size, lattice parameters and crystallinity percent) by Williamson-Hall equation, Nelson-Riley method and calculating the areas under the peaks, respectively. The crystallite size and particle size of HA powders were in nanometric scales. SEM images showed that some parts of HA particles have agglomerates. The ratio of lattice parameters of synthetic hydroxyapatite (c/a = 0.73) was determined in this study is the same as natural hydroxyapatite structure.

Selectivity of pesticides used in rice crop on Telenomus podisi and Trichogramma pretiosum

Directory of Open Access Journals (Sweden)

Juliano de Bastos Pazini

2016-09-01

Full Text Available Telenomus and Trichogramma species stand out as agents for the biological control in rice crops, and the main strategy for preserving them is the use of selective pesticides. This study aimed at evaluating the toxicity of pesticides used in irrigated rice crop on Telenomus podisi Ashmead (Hymenoptera: Platygastridae and Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae. Adults of these parasitoids were exposed to dry residues of pesticides, in a completely randomized experiment, with 25 treatments (24 pesticides + control and four replications. The insecticides clorantraniliprole, flubendiamide and diflubenzuron and the biological insecticides based on Beauveria bassiana and Metarhizium anisopliae were harmless to T. podisi and T. pretiosum. The harmless herbicides were: 2.4-D amine, profoxydim, quinclorac, ethoxysulfuron and saflufenacil. The fungicide epoxiconazole + kresoxim-methyl was also harmless to these two biological control agents. Therefore, these pesticides are indicated for the integrated pest management, in flooded rice areas.

Teaching Library: Vermittlung von Informationskompetenz an medizinischen Bibliotheken

Directory of Open Access Journals (Sweden)

Bauer, Bruno

2014-08-01

Full Text Available [english] The focus of the current issue 1-2/2014 of GMS Medizin – Bibliothek – Information is on “Teaching Library: information literacy instruction at medical libraries”. The authors in this issue are Marina Betker & Annette Kustos (Literature research training in health sciences in a new academic library – straight through and strategic planning: the concept of the “hsg Bochum”, Simone Waldboth (Integration of e-learning in the lecture “Information Literacy” at the Provincial College for Health-Care Professions „Claudiana“, Michaele Adam & Jens Mittelbach (Shaping the Future at the SLUB Dresden with Information Literacy in the Research Cycle, Gregor Steinrisser (Sucessfully failing – Fiction and Friction of a teaching library in university and clinical daily routine, Melanie Kintzel & Norbert Sunderbrink (Information literacy classes at the Medical Library of the University Medical Center Hamburg-Eppendorf, Markus Schmiel (The teaching and learning concept of the Library of the Hannover Medical School, Jutta Matrisciano & Martina Semmler-Schmetz (Teaching Library – Realization of a concept with many facets at the Library for the Medical Faculty of Mannheim, Karin Cepicka („Teaching Library“ at the Library oft the Medical University Vienna, Helmut Dollfuß (Library user education for the new curriculum at the Medical University Vienna, Manuela Rohrmoser & Irene Schachl (The cooperations of teaching librarians at Vienna University Library und Claudia Hausberger & David Frank (Curriculum reform – a work report from the Library of the University of Veterinary Medicine Vienna.

El portafolio: una estrategia para la enseñanza de las ciencias. Experiencia llevada a cabo en una universidad colombiana

Directory of Open Access Journals (Sweden)

John Jairo Briceño Martínez

2011-01-01

Full Text Available Investigación llevada a cabo en el 2008 en la Universidad Manuela Beltrán (UMB, con la participación de 54 profesores del área de ciencias y 1266 estudiantes. El objetivo era analizar la estrategia del portafolio como una alternativa para diseñar, sistematizar y retroalimentar el proceso de aprendizaje dentro del aula, por medio de las actividades propuestas por el profesor y desarrolladas por el estudiante. Esto se logró, a través de la revisión y lectura crítica de cuatro portafolios por profesor, 216 en total. Se extrajeron de manera inductiva categorías de análisis con las cuales se organizaron los resultados, entre los que se resaltan: a la generalidad de actividades que involucran ejercicios de pregunta cerrada y de selección múltiple con única respuesta, utilizadas por la mayoría de los profesores en los portafolios; b la creatividad por parte del estudiante para apropiarse del portafolio y convertirlo en una opción para ir sistematizando sus mejores trabajos con autonomía y criterio personal; c la riqueza en actividades y estrategias que emplean los profesores dentro de las aulas, su creatividad para abordar una enseñanza más cercana y de interés al estudiante, que en muchas ocasiones es desconocida por la institución.

El portafolio: una estrategia para la enseñanza de las ciencias. Experiencia llevada a cabo en una universidad colombiana

Directory of Open Access Journals (Sweden)

John Jairo Briceño Martínez

2011-01-01

Full Text Available Investigación llevada a cabo en el 2008 en la Universidad Manuela Beltrán (UMB, con la participación de 54 profesores del área de ciencias y 1266 estudiantes. El objetivo era analizar la estrategia del portafolio como una alternativa para diseñar, sistematizar y retroalimentar el proceso de aprendizaje dentro del aula, por medio de las actividades propuestas por el profesor y desarrolladas por el estudiante. Esto se logró, a través de la revisión y lectura crítica de cuatro portafolios por profesor, 216 en total. Se extrajeron de manera inductiva categorías de análisis con las cuales se organizaron los resultados, entre los que se resaltan: a la generalidad de actividades que involucran ejercicios de pregunta cerrada y de selección múltiple con única respuesta, utilizadas por la mayoría de los profesores en los portafolios; b la creatividad por parte del estudiante para apropiarse del portafolio yconvertirlo en una opción para ir sistematizando sus mejores trabajos con autonomía y criterio personal; c la riqueza en actividades y estrategias que emplean los profesores dentro de las aulas, su creatividad para abordar una enseñanza más cercana y de interés al estudiante, que en muchas ocasiones es desconocida por la institución.

Cartas y Salones: mujeres que leen y escriben la nación en la Sudamérica del siglo XIX

Directory of Open Access Journals (Sweden)

Sarah C. Chambers

2005-01-01

Full Text Available Este ensayo se basa en la correspondencia de tres destacadas mujeres de principios del siglo diecinueve en la Sudamérica española (Manuela Sáenz, Mariquita Sánchez de Thompson y Carmen Arriagada para analizar sus ideas sobre la identidad nacional y el lugar de la mujer en las nuevas repúblicas. Sus cartas revelan que las redes de amistad influenciaron en su diverso grado de nacionalismo y les permitieron defender que las mujeres podían jugar un papel importante en la reconciliación nacional durante el periodo de lucha civil. Propongo que la nueva concepción de las naciones como “comunidades imaginadas” (Anderson, 1983 se enraíce en las interacciones sociales de estas -más pequeñas pero más tangibles- comunidades de escritores, conversadores y conspiradores políticos. Excluidas de la función pública, y por tanto inhabilitadas para seguir sus ambiciones personales, estas tres mujeres afirmaron que ponían la unidad nacional por encima de la política partidista. Aunque dicho argumento hacía imposible exigir los derechos de plena ciudadanía para las mujeres, fueron más allá del restrictivo rol de esposa y madre desprendida, que se estaba convirtiendo progresivamente en la idea oficial, para hacer de consejeras y mediadoras en el espacio político.

Lhermitte-Duclos disease with neurofibrillary tangles in heterotopic cerebral grey matter

Directory of Open Access Journals (Sweden)

Daniel Rusiecki

2016-06-01

Full Text Available Lhermitte-Duclos disease (LDD, a disorder first described by French physicians Lhermitte and Duclos in 1920 [25], is a benign, slow growing dysplastic gangliocytoma of the cerebellum, characterized by replacement of the granule cell layer by abnormal granule and Purkinje like cells. The most frequent presenting signs and symptoms are megalocephaly, increased intracranial pressure, nausea, hydrocephalus, ataxia, gait abnormalities, and intermittent headaches, all of which are attributed to the mass effect [6,11,25]. Many cases are associated with a mutation in the phosphatase and tensin homolog or PTEN gene which is also involved in numerous otherwise unrelated central nervous system abnormalities, namely Cowden syndrome [1,6,11], autism spectrum disorder [18], cerebral cortical dysplasia [11,30] and Bannayan-Riley-Ruvalcaba syndrome [30]. The presence of cortical heterotopia has been reported in a small number of LDD cases [3,5,17,32]. We describe a unique case of LDD with cerebral cortical heterotopic grey matter containing neurofibrillary tangles.

ESPECIES NATIVAS DE Trichogramma (HYMENOPTERA: TRICHOGRAMMATIDAE COLECTADAS EN CULTIVOS AGRÍCOLAS DEL NORTE DE MÉXICO

Directory of Open Access Journals (Sweden)

Fabián García-González

2011-01-01

Full Text Available Trichogramma atopovirilia Oatman y Platner, T. deion Pinto y Oatman, T. exiguum Pinto y Platner, T. fuentesi Torre y T. pretiosum Riley, fueron determinadas de 27 muestras colectadas en los siguientes cultivos: algodonero, caña de azúcar, chile serrano, col, girasol, maíz, naranjo, nogal, soya y tomate, establecidos en ocho estados del norte de México. T. pretiosum se determinó en algodonero, chile serrano, col, girasol, maíz, naranjo, nogal, soya y tomate; T. fuentesi en muestras de maíz y nogal; en muestras de maíz a T. exiguum y T. deion; y T. atopovirilia en caña de azúcar. T. pretiosum fue encontrada en 19 de las 27 muestras revisadas, en contraste T. atopovirilia y T. exiguum se determinaron en una muestra cada una. La determinación de T. deion y T. fuentesi en las muestras de maíz, se consideran como nuevos reportes para México.

Insecticide toxicity to Trichogramma pretiosum (Hymenoptera: Trichogrammatidae) females and effect on descendant generation.

Science.gov (United States)

Vianna, Ulysses R; Pratissoli, Dirceu; Zanuncio, José C; Lima, Eraldo R; Brunner, Jay; Pereira, Fabrício F; Serrão, José E

2009-02-01

The effect of nine insecticides used in tomato production was evaluated on adults of two Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) populations from Rive and Afonso Cláudio, Espírito Santo State, Brazil. The experiment was developed in an acclimatized chamber at 25 +/- 1 degrees C, 70 +/- 10% relative humidity and 14 h photophase. Eggs of Anagasta kuehniella (Lepidoptera: Pyralidae), previously immersed in insecticides solutions were offered to females of both T. pretiosum populations. Bacillus thuringiensis, lufenuron and triflumuron had lowest negative effects on parasitism and viability of individuals of these populations; however, abamectin and pyrethroids (betacyflurin 50 and 125 g/l and esfenvalerate) insecticides reduced parasitism rates. T. pretiosum emerged from A. kuehniella eggs treated with esfenvalerate but were not able to parasitize non treated eggs of this host. B. thuringiensis, lufenuron and triflumuron may be used in integrated pest management programs to control tomato pests, because they have moderated negative effect on parasitoid wasps.

Studying the highly bent spectra of FR II-type radio galaxies with the KDA EXT model

Science.gov (United States)

Kuligowska, Elżbieta

2018-04-01

Context. The Kaiser, Dennett-Thorpe & Alexander (KDA, 1997, MNRAS, 292, 723) EXT model, that is, the extension of the KDA model of Fanaroff & Riley (FR) II-type source evolution, is applied and confronted with the observational data for selected FR II-type radio sources with significantly aged radio spectra. Aim. A sample of FR II-type radio galaxies with radio spectra strongly bent at their highest frequencies is used for testing the usefulness of the KDA EXT model. Methods: The dynamical evolution of FR II-type sources predicted with the KDA EXT model is briefly presented and discussed. The results are then compared to the ones obtained with the classical KDA approach, assuming the source's continuous injection and self-similarity. Results: The results and corresponding diagrams obtained for the eight sample sources indicate that the KDA EXT model predicts the observed radio spectra significantly better than the best spectral fit provided by the original KDA model.

Part-task training in the context of automation: current and future directions.

Science.gov (United States)

Gutzwiller, Robert S; Clegg, Benjamin A; Blitch, John G

2013-01-01

Automation often elicits a divide-and-conquer outlook. By definition, automation has been suggested to assume control over a part or whole task that was previously performed by a human (Parasuraman & Riley, 1997). When such notions of automation are taken as grounds for training, they readily invoke a part-task training (PTT) approach. This article outlines broad functions of automation as a source of PTT and reviews the PTT literature, focusing on the potential benefits and costs related to using automation as a mechanism for PTT. The article reviews some past work in this area and suggests a path to move beyond the type of work captured by the "automation as PTT" framework. An illustrative experiment shows how automation in training and PTT are actually separable issues. PTT with automation has some utility but ultimately remains an unsatisfactory framework for the future broad potential of automation during training, and we suggest that a new conceptualization is needed.

Anthony D. Smith and the Role of Art, Architecture and Music in the Growth of Modern Nations

DEFF Research Database (Denmark)

Brincker, Benedikte; Leoussi, Athena S.

2018-01-01

In his two books, The Nation made Real (2013) and The Nation and Classical Music (2016), co-authored with Matthew Riley, as well as in other writings,Smith showed how artists, architects, musical composers and other cultural agents in Europe became champions of the idea of the nation from the late...... eighteenth century onwards and tried, through their works, to convert and draw the wider public ‘into the conceptual and emotional world of nationalism’ (Smith 2013: 2, 9). This conversion would, in turn, lead to action: the mobilization of communities, who came to think of themselves as ‘nations’ ,for...... the practical realization of the ideals of national ‘autonomy, unity and identity’ (Ibid : 8). For Smith, ‘[T]his is where the arts came to play a critical role.’ They enabled the wider public to ‘see the nation’ and ‘hear its call’(Ibid: 9). This they did by depicting and evoking to these wider, ‘national...

Why does placing the question before an arithmetic word problem improve performance? A situation model account.

Science.gov (United States)

Thevenot, Catherine; Devidal, Michel; Barrouillet, Pierre; Fayol, Michel

2007-01-01

The aim of this paper is to investigate the controversial issue of the nature of the representation constructed by individuals to solve arithmetic word problems. More precisely, we consider the relevance of two different theories: the situation or mental model theory (Johnson-Laird, 1983; Reusser, 1989) and the schema theory (Kintsch & Greeno, 1985; Riley, Greeno, & Heller, 1983). Fourth-graders who differed in their mathematical skills were presented with problems that varied in difficulty and with the question either before or after the text. We obtained the classic effect of the position of the question, with better performance when the question was presented prior to the text. In addition, this effect was more marked in the case of children who had poorer mathematical skills and in the case of more difficult problems. We argue that this pattern of results is compatible only with the situation or mental model theory, and not with the schema theory.

FIRST 'WINGED' AND X-SHAPED RADIO SOURCE CANDIDATES. II. NEW REDSHIFTS

International Nuclear Information System (INIS)

Cheung, C. C.; Healey, Stephen E.; Landt, Hermine; Jordan, Andres; Verdoes Kleijn, Gijs

2009-01-01

We report optical spectroscopic observations of X-shaped radio sources with the Hobby-Eberly Telescope and Multiple-Mirror Telescope, focused on the sample of candidates from the FIRST survey presented in a previous paper. A total of 27 redshifts were successfully obtained, 21 of which are new, including a newly identified candidate source of this type which is presented here. With these observations, the sample of candidates from the previous paper is over 50% spectroscopically identified. Two new broad emission-lined X-shaped radio sources are revealed, while no emission lines were detected in about one-third of the observed sources; a detailed study of the line properties is deferred to a future paper. Finally, to explore their relation to the Fanaroff-Riley division, the radio luminosities and host galaxy absolute magnitudes of a spectroscopically identified sample of 50 X-shaped radio galaxies are calculated to determine their placement in the Owen-Ledlow plane.

The risk of airborne influenza transmission in passenger cars.

Science.gov (United States)

Knibbs, L D; Morawska, L; Bell, S C

2012-03-01

Travel in passenger cars is a ubiquitous aspect of the daily activities of many people. During the 2009 influenza A(H1N1) pandemic a case of probable transmission during car travel was reported in Australia, to which spread via the airborne route may have contributed. However, there are no data to indicate the likely risks of such events, and how they may vary and be mitigated. To address this knowledge gap, we estimated the risk of airborne influenza transmission in two cars (1989 model and 2005 model) by employing ventilation measurements and a variation of the Wells-Riley model. Results suggested that infection risk can be reduced by not recirculating air; however, estimated risk ranged from 59% to 99·9% for a 90-min trip when air was recirculated in the newer vehicle. These results have implications for interrupting in-car transmission of other illnesses spread by the airborne route.

Invited commentary: co-occurring health conditions among women living with profound life challenges.

Science.gov (United States)

Coughlin, Steven S

2011-09-01

People challenged by homelessness are living with several losses including the loss of a home, employment, economic security, health or well-being, and personal security. Assistance programs for people who are homeless consist of housing, emergency shelter, food services, employment assistance, peer support, medical care, and mental health services. An article by Riley et al. (Am J Epidemiol. 2011;175(5):515-522) appearing in this issue of the Journal examines the relation between basic subsistence needs and health outcomes in a cohort of 129 human immunodeficiency virus-infected women who were recruited from a probability sample of low-income hotels, homeless shelters, and free food programs in San Francisco, California. The results of their study underscore the importance of addressing subsistence needs and providing access to medical and psychological treatment for homeless and unstably housed women. In addition to subsistence needs, more attention should be given to comorbid psychiatric and medical conditions that occur among homeless women, including trauma-related disorders.

KUDESAN EFFICACY IN ADOLESCENTS WITH METABOLIC SYNDROME

Directory of Open Access Journals (Sweden)

M.B. Kolesnikova

2011-01-01

Full Text Available Metabolic abnormalities in metabolic syndrome affect the functioning of practically all organs and systems, and most seriously — cardio-vascular system. Cardio-vascular abnormalities in metabolic syndrome manifest as arterial hypertension, Riley-Day syndrome and endothelial dysfunction that can lead to decrease of adaptive and reserve capabilities. Co-enzyme Q10 possesses cardioprotective,  stress-protective and anti-ischaemic activity. Clinical study performed on 40 children aged 10 to 17 years with constitutive obesity, complicated metabolic syndrome, has proven validity of co-enzyme Q10 treatment in patients with metabolic syndrome. The use of co-enzyme Q10 15 mg/day during 30 days has lead to improvement of psycho-emotional condition, decrease in anxiety complaints, sleep improvement, decrease in asthenic syndrome symptoms, improvement in electrophysiological heart indices Key words: metabolic syndrome, co-enzyme Q10. (Voprosy sovremennoi pediatrii — Current Pediatrics. — 2011; 10 (5: 102–106.

Os anofelinos do sub-gênero kerteszia em relação à distribuição das bromeliáceas em comunidades florestais do município de Brusque, Estado de Santa Catarina

Directory of Open Access Journals (Sweden)

Henrique P. Veloso

1956-06-01

Full Text Available Die vorliegende Arbeit bildet einem Teil der Studien, die unter Leitung des nationalen Malaria-Dienstes in Zusammenarbeit mit Technikern des Institutes Oswaldo Cruz im Sueden Brasiliens durchgefuehrt werden und sich mit dem Problem des Wechselspiels zwischen Malaria und Bromeliacen befassen. Die verfasser bearbeiten in dieser Niederschrift, die den Anfang einer Serie ueber die erwaehnten Fragen darstellt, die Entwicklung der Anophelinen der Untergattung Kerteszia in den Wasseransammlungen der Blattwinkel von Bromelien. Es wurde das Munizip Brusque ausgewaehlt, da hier die Abhaengigkeit der Bevoelkerung vom Wald eine sehr enge ist und da dieses Gebiet fuer die Oekologie und Topographie der Suedregion charakteristisch ist. Den hier gefundenen Wald nennen die Autoren die “Suedbrasilianische Regenformation”. Vor der Ankunft der Arbeitsgruppe wurden die folgenden Methoden zur Bekaempfung der Brutstaetten der Malariauebertraeger angewendet: 1. Manuelle Entfernung der Bromelien aus den die Staedte umgebenden Waeldern, 2. Abholzung. Da diese beiden Methoden zu drastisch sind, benutzten die erwaehnten Techniker anfangs eine 0,5% ige Loesung von Kupfersulfat als “Bromelicid” und spaeter PariserGruen, das vom Flugzeug aus verstaeubt wurde. Um ueberfluessige Schaeden an den Pflanzengesellschaften zu vermeiden, wurde daran gedacht, auf Grund oekologischer Betrachtungen das Problem “Bromeliaceae-Malaria” nach dem Vorbild Pittendrigh’s in Trinidad zu loesen. Es wurde folgenden Arbeitsplan durchgefuehrt: 1. Studium der Vergesellchaftungen im Hinblick auf die Soziologie und ihre Beziehungen zu den Bromelien, 2. Auszaehlung der in den Bromelien enthaltenen Larven und Puppen, 3. Kenntnis des Mittelwertes der Larven, die sich zu Imagines entwickeln und 4. Mikrolima der Waelder usw. Die Oekologie der bromelien wurde in einer frueheren Publikation veroeffentlich (Veloso, H. P., 1952. Das botanische Material der vorliegenden Arbeit wurde von Spezialisten

Effect of 6-month community-based exercise interventions on gait and functional fitness of an older population: a quasi-experimental study

Directory of Open Access Journals (Sweden)

Ramalho F

2018-04-01

Full Text Available Fátima Ramalho,1,2 Rita Santos-Rocha,1,2 Marco Branco,1,2 Vera Moniz-Pereira,2 Helô-Isa André,2 António P Veloso,2 Filomena Carnide2 1Sport Sciences School of Rio Maior (ESDRM, Polytechnic Institute of Santarém, Rio Maior, Portugal; 2Laboratory of Biomechanics and Functional Morphology, Interdisciplinary Centre for the Study of Human Performance (CIPER, Faculty of Human Kinetics (FMH, University of Lisbon, Cruz Quebrada, Portugal Background: Gait ability in older adults has been associated with independent living, increased survival rates, fall prevention, and quality of life. There are inconsistent findings regarding the effects of exercise interventions in the maintenance of gait parameters.Objectives: The aim of the study was to analyze the effects of a community-based periodized exercise intervention on the improvement of gait parameters and functional fitness in an older adult group compared with a non-periodized program.Methods: A quasi-experimental study with follow-up was performed in a periodized exercise group (N=15 and in a non-periodized exercise group (N=13. The primary outcomes were plantar pressure gait parameters, and the secondary outcomes were physical activity, aerobic endurance, lower limb strength, agility, and balance. These variables were recorded at baseline and after 6 months of intervention.Results: Both programs were tailored to older adults’ functional fitness level and proved to be effective in reducing the age-related decline regarding functional fitness and gait parameters. Gait parameters were sensitive to both the exercise interventions. Conclusion: These exercise protocols can be used by exercise professionals in prescribing community exercise programs, as well as by health professionals in promoting active aging. Keywords: mobility, community exercise programs, active aging, plantar pressure analysis, ground reaction forces, gait properties

Notes sur « la charpente secrète » et sur la thématique de L’Automne du patriarche de G. García Márquez

Directory of Open Access Journals (Sweden)

Richard Renaud

2012-08-01

Full Text Available Roman compact et foisonnant, L’Automne du patriarche de Gabriel García Márquez a été écrit avec une précision d’horloger. Une lecture attentive du texte y décèle plusieurs séries de thèmes ou de motifs récurrents qui n’ont pas encore été mis au jour, comme celui des vautours, par exemple : il reparaît à la fin du volume où, associé au plus ancien souvenir du patriarche ainsi qu’au motif des excréments (fréquent dans l’œuvre narrative de l’auteur, il duplique l’image de la mère, et symbolise la nature œdipienne de l’amour qui unit le personnage central à Bendición Alvarado, puis à celle qui sera sa maternelle épouse : Leticia Nazareno.Plus étonnante est la composition des chapitres du roman. En effet, l’exact milieu de chacun d’eux renferme un élément qui en représente l’essentiel. Trois sont centrés sur un personnage lumineux qui ne se plie pas à l’autorité du patriarche : la jeune et belle Manuela Sánchez (chapitre II, le religieux Demetrio Aldous (chapitre IV, et le poète Rubén Darío (chapitre V. Les trois autres s’articulent autour de la bassesse du protagoniste, mise en évidence par sa duplicité – qu’exprime le thème du double ou du miroir (chapitre I ; par sa corruption (chapitre III ; et par un goût infantile du pouvoir qui le pousse à vendre les eaux territoriales afin d’éviter une nouvelle occupation du pays par une puissance étrangère dominatrice (chapitre VI.Novela compacta y lujuriante, El otoño del patriarca se escribió con una precisión casi maníaca. Una lectura atenta del texto descubre varias series de temas o motivos recurrentes que todavía no se han subrayado, como el de los buitres, por ejemplo : éste asoma de nuevo al final del volumen donde, asociado como está al recuerdo más antiguo del patriarca, así como al motivo de los excrementos (frecuente en la obra narrativa del autor, duplica la imagen de la madre, y simboliza la índole ed

Desenvolvimento e exigências térmicas de Trichogramma pretiosum Riley, criados em duas traças do tomateiro

Directory of Open Access Journals (Sweden)

PRATISSOLI DIRCEU

2000-01-01

Full Text Available Estudou-se a biologia de Trichogramma pretiosum em ovos de Phthorimaea operculella (Zeller e Tuta absoluta (Meyrick em diferentes temperaturas (18, 20, 22, 25, 30 e 32ºC, 70±10% de umidade relativa e fotofase de 14 horas, com o objetivo de se determinarem as exigências térmicas, bem como o número de gerações durante o ano. Houve correlação inversa entre a duração do ciclo e o aumento de temperatura na faixa térmica estudada. A razão sexual, no entanto, não foi afetada pela temperatura quando o hospedeiro foi T. absoluta. A viabilidade de T. pretiosum, criado em P. operculella foi mais afetada que em T. absoluta. A exigência térmica, calculada pelo método da hipérbole, foi maior no tocante a T. absoluta (131,3 graus dia em relação a P. operculella (120,9 graus dia, e o limiar térmico inferior, respectivamente, 12,98 e 13,53°C. No que tange a ambas as espécies de traças, a longevidade do parasitóide sempre obedeceu à distribuição de Weibull. O potencial de aumento foi avaliado, em ambas as espécies de traças, com base no número de gerações anuais.

JDD, Inc. Database

Science.gov (United States)

Miller, David A., Jr.

2004-01-01

JDD Inc, is a maintenance and custodial contracting company whose mission is to provide their clients in the private and government sectors "quality construction, construction management and cleaning services in the most efficient and cost effective manners, (JDD, Inc. Mission Statement)." This company provides facilities support for Fort Riley in Fo,rt Riley, Kansas and the NASA John H. Glenn Research Center at Lewis Field here in Cleveland, Ohio. JDD, Inc. is owned and operated by James Vaughn, who started as painter at NASA Glenn and has been working here for the past seventeen years. This summer I worked under Devan Anderson, who is the safety manager for JDD Inc. in the Logistics and Technical Information Division at Glenn Research Center The LTID provides all transportation, secretarial, security needs and contract management of these various services for the center. As a safety manager, my mentor provides Occupational Health and Safety Occupation (OSHA) compliance to all JDD, Inc. employees and handles all other issues (Environmental Protection Agency issues, workers compensation, safety and health training) involving to job safety. My summer assignment was not as considered "groundbreaking research" like many other summer interns have done in the past, but it is just as important and beneficial to JDD, Inc. I initially created a database using a Microsoft Excel program to classify and categorize data pertaining to numerous safety training certification courses instructed by our safety manager during the course of the fiscal year. This early portion of the database consisted of only data (training field index, employees who were present at these training courses and who was absent) from the training certification courses. Once I completed this phase of the database, I decided to expand the database and add as many dimensions to it as possible. Throughout the last seven weeks, I have been compiling more data from day to day operations and been adding the

[Intergenerational communication by age-integrating structures? Remarks on on gerontologic utopia].

Science.gov (United States)

Amrhein, L

2002-08-01

In their "aging and society" paradigm Riley and collaborators conceptualize the ideal type of an age-integrated society in which the social segregation of different age groups is removed. They claim that in the future the life-world areas of education, work and leisure will no longer exclusively follow the triple division of the life course but will be visited repeatedly in different phases of life. Therefore, they argue, age barriers would be dissolved in many areas, which would lead to more contact and cooperation and to a greater solidarity between the generations. This conception shall be rejected as an utopia because it contradicts central functional mechanisms of modern societies; at best it might be imagined as a "reflexive modernization" of age-segregated structures. A certain distance and alienation between the generations remains a direct, though unintended product of the modernization process and cannot be reversed without welfare losses. A dialogue of generations as a societal project, therefore, implies that the functional differentiation into age groups and life stages will be accepted without referring to pre-modern idealizations of generational relationships.

Utilizing leadership to achieve high reliability in the delivery of perinatal care

Directory of Open Access Journals (Sweden)

Parrotta C

2012-11-01

Full Text Available Carmen Parrotta,1 William Riley,1 Les Meredith21School of Public Health, University of Minnesota, Minneapolis, MN, 2Premier Insurance Management Services Inc, Charlotte, NC, USAAbstract: Highly reliable care requires standardization of clinical practices and is a prerequisite for patient safety. However, standardization in complex hospital settings is extremely difficult to attain and health care leaders are challenged to create care delivery processes that ensure patient safety. Moreover, once high reliability is achieved in a hospital unit, it must be maintained to avoid process deterioration. This case study examines an intervention to implement care bundles (a collection of evidence-based practices in four hospitals to achieve standardized care in perinatal units. The results show different patterns in the rate and magnitude of change within the hospitals to achieve high reliability. The study is part of a larger nationwide study of 16 hospitals to improve perinatal safety. Based on the findings, we discuss the role of leadership for implementing and sustaining high reliability to ensure freedom from unintended injury.Keywords: care bundles, evidence-based practice, standardized care, process improvement

Movement dynamics reflect a functional role for weak coupling and role structure in dyadic problem solving.

Science.gov (United States)

Abney, Drew H; Paxton, Alexandra; Dale, Rick; Kello, Christopher T

2015-11-01

Successful interaction requires complex coordination of body movements. Previous research has suggested a functional role for coordination and especially synchronization (i.e., time-locked movement across individuals) in different types of human interaction contexts. Although such coordination has been shown to be nearly ubiquitous in human interaction, less is known about its function. One proposal is that synchrony supports and facilitates communication (Topics Cogn Sci 1:305-319, 2009). However, questions still remain about what the properties of coordination for optimizing communication might look like. In the present study, dyads worked together to construct towers from uncooked spaghetti and marshmallows. Using cross-recurrence quantification analysis, we found that dyads with loosely coupled gross body movements performed better, supporting recent work suggesting that simple synchrony may not be the key to effective performance (Riley et al. 2011). We also found evidence that leader-follower dynamics-when sensitive to the specific role structure of the interaction-impact task performance. We discuss our results with respect to the functional role of coordination in human interaction.

Optical Analysis of Iron-Doped Lead Sulfide Thin Films for Opto-Electronic Applications

Science.gov (United States)

Chidambara Kumar, K. N.; Khadeer Pasha, S. K.; Deshmukh, Kalim; Chidambaram, K.; Shakil Muhammad, G.

Iron-doped lead sulfide thin films were deposited on glass substrates using successive ionic layer adsorption and reaction method (SILAR) at room temperature. The X-ray diffraction pattern of the film shows a well formed crystalline thin film with face-centered cubic structure along the preferential orientation (1 1 1). The lattice constant is determined using Nelson Riley plots. Using X-ray broadening, the crystallite size is determined by Scherrer formula. Morphology of the thin film was studied using a scanning electron microscope. The optical properties of the film were investigated using a UV-vis spectrophotometer. We observed an increase in the optical band gap from 2.45 to 3.03eV after doping iron in the lead sulfide thin film. The cutoff wavelength lies in the visible region, and hence the grown thin films can be used for optoelectronic and sensor applications. The results from the photoluminescence study show the emission at 500-720nm. The vibrating sample magnetometer measurements confirmed that the lead sulfide thin film becomes weakly ferromagnetic material after doping with iron.

Fluorine-doped NiO nanostructures: Structural, morphological and spectroscopic studies

Science.gov (United States)

Singh, Kulwinder; Kumar, Manjeet; Singh, Dilpreet; Singh, Manjinder; Singh, Paviter; Singh, Bikramjeet; Kaur, Gurpreet; Bala, Rajni; Thakur, Anup; Kumar, Akshay

2018-05-01

Nanostructured NiO has been prepared by co-precipitation method. In this study, the effect of fluorine doping (1, 3 and 5 wt. %) on the structural, morphological as well as optical properties of NiO nanostructures has been studied. X-ray diffraction (XRD) has employed for studying the structural properties. Cubic crystal structure of NiO was confirmed by the XRD analysis. Crystallite size increased with increase in doping concentration. Nelson-Riley factor (NRF) analysis indicated the presence of defect states in the synthesized samples. Field emission scanning electron microscopy showed the spherical morphology of the synthesized samples and also revealed that the particle size varied with dopant content. The optical properties were studied using UV-Visible Spectroscopy. The results indicated that the band gap energy of the synthesized nanostructures decreased with increase in doping concentration upto 3% but increased as the doping concentration was further raised to 5%. This can be ascribed to the defect states variations in the synthesized samples. The results suggested that the synthesized nanostructures are promising candidate for optoelectronic as well as gas sensing applications.

Motion illusions in optical art presented for long durations are temporally distorted.

Science.gov (United States)

Nather, Francisco Carlos; Mecca, Fernando Figueiredo; Bueno, José Lino Oliveira

2013-01-01

Static figurative images implying human body movements observed for shorter and longer durations affect the perception of time. This study examined whether images of static geometric shapes would affect the perception of time. Undergraduate participants observed two Optical Art paintings by Bridget Riley for 9 or 36 s (group G9 and G36, respectively). Paintings implying different intensities of movement (2.0 and 6.0 point stimuli) were randomly presented. The prospective paradigm in the reproduction method was used to record time estimations. Data analysis did not show time distortions in the G9 group. In the G36 group the paintings were differently perceived: that for the 2.0 point one are estimated to be shorter than that for the 6.0 point one. Also for G36, the 2.0 point painting was underestimated in comparison with the actual time of exposure. Motion illusions in static images affected time estimation according to the attention given to the complexity of movement by the observer, probably leading to changes in the storage velocity of internal clock pulses.

Short-term cyclic variations and diurnal variations of the Venus upper atmosphere

Science.gov (United States)

Keating, G. M.; Taylor, F. W.; Nicholson, J. Y.; Hinson, E. W.

1979-01-01

The vertical structure of the nighttime thermosphere and exosphere of Venus was discussed. A comparison of the day and nighttime profiles indicates, contrary to the model of Dickinson and Riley (1977), that densities (principally atomic oxygen) dropped sharply from day to night. It was suggested either that the lower estimates were related to cooler exospheric temperatures at night or that the atomic bulge was flatter than expected at lower altitudes. Large periodic oscillations, in both density and inferred exospheric temperatures, were detected with periods of 5 to 6 days. The possibility that cyclic variations in the thermosphere and stratosphere were caused by planetary-scale waves, propagated upward from the lower atmosphere, was investigated using simultaneous temperature measurements obtained by the Venus radiometric temperature experiment (VORTEX). Inferred exospheric temperatures in the morning were found to be lower than in the evening as if the atmosphere rotated in the direction of the planet's rotation, similar to that of earth. Superrotation of the thermosphere and exosphere was discussed as a possible extension of the 4-day cyclic atmospheric rotation near the cloud tops.

Ocorrência de Trichogramma pretiosum em áreas comerciais de tomate, no Espírito Santo, em regiões de diferentes altitudes Occurrence of Trichogramma pretiosum in commercial fields of tomato, in Espírito Santo State (Brazil, in areas with different altitudes

Directory of Open Access Journals (Sweden)

Dirceu Pratissoli

2003-03-01

Full Text Available Foram instalados sete campos experimentais em altitudes entre 200 e 1050 metros, nos municípios de Afonso Cláudio e Venda Nova do Imigrante no Espírito Santo, para desenvolvimento de avaliações pré-introdutórias de Trichogramma. Visou-se determinar as espécies nativas e conhecer o índice de parasitismo natural, para utilização em programas de manejo integrado da traça-do-tomateiro. Em todos os campos comerciais de tomateiros foram coletados apenas Trichogramma pretiosum Riley. No primeiro ano de coleta, o número médio de amostras de cartelas com parasitismo, bem como o número médio de ovos parasitados, apresentaram uma relação inversa, quando comparado com as regiões de altitudes entre 200 e 850 metros. Em regiões de menor altitude (200, 380 e 450 metros, foram observadas presença constante desses parasitóides de ovos em todas as áreas amostradas. No segundo ano de coleta não foi observado o mesmo comportamento em relação ao primeiro, tendo os valores médios dos parâmetros sido inferiores, com o número médio de ovos parasitados por cartela reduzido pela metade. Os resultados de dois anos de coleta mostraram que a agressividade das linhagens de T. pretiosum foi diferenciada em função das áreas.Seven experimental fields were installed in altitudes varying from 200 to 1050 meters, located in Afonso Cláudio and Venda Nova do Imigrante in Espírito Santo State, Brazil. The evaluations of Trichogramma presence were done to determine the native species, know the natural parasitism rate in order to use the obtained results in programs of pest management of Tuta absoluta. In all commercial tomato fields only Trichogramma pretiosum Riley was collected. In the first year the medium number of egg-cards sample with parasitism, as well as the medium number of parasitized eggs, presented an inverse relationship when compared to the areas of altitude between 200 and 850 meters. In the lower areas (200, 380 and 450 m a constant

Editorial L&E, v.7, n.1, 2013.

Directory of Open Access Journals (Sweden)

Rede Conpadre

2013-02-01

Full Text Available Editorial L&E, v.7, n.1, 2013 L’architettura, in quanto bene d’uso, è da considerarsi come un’opera aperta, destinata a venire, nel corso della sua esistenza, modificata, trasformata, integrata per poter continuare ad essere utilizzata e fruita. Le architetture che sono state oggetto di dismissione, a seguito del venir meno delle motivazioni (funzioni per le quali esse erano state realizzate, sono, più di altre, destinate a subire tali trasformazioni. Sono, infatti, architetture ormai deboli e fragili, nella maggior parte dei casi considerate prive di valore o quasi, che proprio in virtù di queste considerazioni vengono abbandonate e/o distrutte, decretandone irrimediabilmente la scomparsa. Il patrimonio industriale dismesso rientra a pieno titolo in tale categoria di manufatti architettonici e, purtroppo, nel corso del tempo, è stato sottoposto a qualsivoglia tipo di manomissione, ivi compresa la demolizione. Si tratta però di un patrimonio che, a ben guardare, risulta ancora ricco di qualità e di potenzialità che potrebbe/dovrebbe essere adeguatamente valorizzato attraverso lo studio e la messa a punto di soluzioni che consentano di massimizzare la permanenza, pur prestando attenzione al problema della sostenibilità degli interventi sia in fase di realizzazione degli stessi, sia in fase di utilizzo dei beni sottoposti ai necessari e appropriati interventi di rifunzionalizzazione. Solo in questo modo tale patrimonio può cessare di rappresentare un “problema” per i proprietari, pubblici o privati che siano, per divenire una risorsa – architettonica, culturale e, perché no, anche materiale – garantendone la permanenza nel tempo – magari trasformata, sicuramente arricchita da nuove tracce – e la trasmissione alle future generazioni. Manuela Mattone

NOAA/NCCOS Point Shapefile - 100m2 Fish Density for Tortugas Ecological Reserve and Riley's Hump, United States, 2011, WGS84

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The research mission was conducted in the Dry Tortugas, FL by National Ocean Service scientists from the Center for Coastal Habitat and Fisheries Research (CCFHR)...

Strategic Planning for Irwin Army Community Hospital: The Assessment and Implementation of Services, in Order to Meet Fort Riley's Increasing Population

National Research Council Canada - National Science Library

Besser, Christopher S

2008-01-01

... that is significantly increasing in size yet with the same physical support structure. The purpose of this research is to develop a strategic plan to determine an optimal "mix" of services for Irwin Army Community Hospital (IACH...

Variações na composição e estrutura da vegetação permitem detectar agrupamentos florísticos em uma Floresta Subtropical Atlântica no Sul do Brasil?

Directory of Open Access Journals (Sweden)

João Paulo de Maçaneiro

2016-12-01

Full Text Available http://dx.doi.org/10.5007/2175-7925.2016v29n4p43 As variações da vegetação em função da posição topográfica têm despertado o interesse dos pesquisadores. Entretanto, poucos estudos verificaram as associações florísticas formadas pela posição topográfica de uma encosta. Neste trabalho, analisamos se as variações na vegetação permitem detectar agrupamentos florísticos em uma Floresta Pluvial Subtropical. A vegetação foi amostrada em 25 parcelas de 400 m² distribuídas sistematicamente, onde foram medidos os indivíduos com DAP ≥ 5,0 cm. Amostramos 1.727 indivíduos e 144 espécies. A ordenação NMDS segregou três grupos em função da posição topográfica da encosta (Monte Carlo, P ≥ 0,05; ANOSIM, P < 0,001. Euterpe edulis e Sloanea guianensis se destacaram nos terços inferior e médio da encosta, enquanto Ocotea aciphylla e Alchornea triplinervia se destacaram no terço superior. Algumas espécies se mostraram indicadoras dos setores analisados, como é o caso de Actinostemon concolor e Alsophila setosa no terço inferior, Cyathea corcovadensis e Rudgea recurva no terço médio e Myrcia pulchra e Podocarpus sellowii no terço superior. Nossos resultados indicaram que as variações florísticas e estruturais observadas por Veloso e Klein (1959 e Klein (1980; 1984 para o Vale do Itajaí em Santa Catarina apresentam validade estatística nos dias atuais, pois verificamos a formação de diferentes grupos de acordo com a posição topográfica da encosta.

Homosexual Desire Displayed in El lugar sin límites, by Arturo Ripstein / Visualizaciones del deseo homosexual en El lugar sin límites, de Arturo Ripstein

Directory of Open Access Journals (Sweden)

Dieter Ingenschay

2016-09-01

Full Text Available El siguiente artículo analiza la película El lugar sin límites (1977 de Arturo Ripstein, basada en la novela homónima de José Donoso (1966. Ambas obras se conocen como ejemplos tempranos de un discurso sobre la homosexualidad dentro de las sociedades homófobas latinoamericanas de la era antes de Foucault. Su meta es mostrar las diferencias específicas «esenciales» entre la novela y la película con respecto al tema de los problemas de género y del deseo homosexual en particular. Cuando Ripstein pidió el guión a Manuel Puig, quería ganar la colaboración de una voz «auténticamente» gay, pero más tarde Puig no reconoció su autoría. Las dos obras disponen de técnicas específicas para visualizar la «perturbación de géneros», a saber: métodos gramaticales en el caso de la novela, y el uso de colores simbólicos en el caso de la película. Ésta última muestra, más claramente que la novela, el carácter performativo del género. Aunque la película aborda cuestiones como la homofobia, la represión y los inicios de una liberación sexual –y por ello podría relacionarse con el popular cine de fichera–, su principal logro es mostrar, de manera consciente e inédita, el proceso emancipatorio de un gay, travesti en este caso. Si hay una persona «trágica» en esta película, ya no es La Manuela, el travesti, sino Pancho, el macho y homosexual.Palabras clave: Ripstein, Donoso, El lugar sin límites, homosexualidad en Latinoamérica, Gender Trouble (perturbación de género en Latinoamérica, homofobia en Latinoamérica, emancipación gay en Latinoamérica.AbstractThe following article analyzes Arturo Ripstein’s film El lugar sin límites (1977, based on José Donoso’s homonymous novel (1966. Both are well-known early examples of a fictional discourse on homosexuality within the homophobic Latin American societies of pre-Foucauldian times. Its aim is to show the specific «essential» difference between the novel and

Predictive Capability of the Compressible MRG Equation for an Explosively Driven Particle with Validation

Science.gov (United States)

Garno, Joshua; Ouellet, Frederick; Koneru, Rahul; Balachandar, Sivaramakrishnan; Rollin, Bertrand

2017-11-01

An analytic model to describe the hydrodynamic forces on an explosively driven particle is not currently available. The Maxey-Riley-Gatignol (MRG) particle force equation generalized for compressible flows is well-studied in shock-tube applications, and captures the evolution of particle force extracted from controlled shock-tube experiments. In these experiments only the shock-particle interaction was examined, and the effects of the contact line were not investigated. In the present work, the predictive capability of this model is considered for the case where a particle is explosively ejected from a rigid barrel into ambient air. Particle trajectory information extracted from simulations is compared with experimental data. This configuration ensures that both the shock and contact produced by the detonation will influence the motion of the particle. The simulations are carried out using a finite volume, Euler-Lagrange code using the JWL equation of state to handle the explosive products. This work was supported by the U.S. Department of Energy, National Nuclear Security Administration, Advanced Simulation and Computing Program, as a Cooperative Agreement under the Predictive Science Academic Alliance Program,under Contract No. DE-NA0002378.

Criteria for retrograde rotation of accreting black holes

Science.gov (United States)

Mikhailov, A. G.; Piotrovich, M. Yu; Gnedin, Yu N.; Natsvlishvili, T. M.; Buliga, S. D.

2018-06-01

Rotating supermassive black holes produce jets and their origin is connected to the magnetic field that is generated by accreting matter flow. There is a point of view that electromagnetic fields around rotating black holes are brought to the hole by accretion. In this situation the prograde accreting discs produce weaker large-scale black hole threading magnetic fields, implying weaker jets than in retrograde regimes. The basic goal of this paper is to find the best candidates for retrograde accreting systems in observed active galactic nuclei. We show that active galactic nuclei with low Eddington ratio are really the best candidates for retrograde systems. This conclusion is obtained for kinetically dominated Fanaroff-Riley class II radio galaxies, flat-spectrum radio-loud narrow-line Seyfert I galaxies and a number of nearby galaxies. Our conclusion is that the best candidates for retrograde systems are the noticeable population of active galactic nuclei in the Universe. This result corresponds to the conclusion that in the merging process the interaction of merging black holes with a retrograde circumbinary disc is considerably more effective for shrinking the binary system.

A Step Toward High Reliability: Implementation of a Daily Safety Brief in a Children's Hospital.

Science.gov (United States)

Saysana, Michele; McCaskey, Marjorie; Cox, Elaine; Thompson, Rachel; Tuttle, Lora K; Haut, Paul R

2017-09-01

Health care is a high-risk industry. To improve communication about daily events and begin the journey toward a high reliability organization, the Riley Hospital for Children at Indiana University Health implemented a daily safety brief. Various departments in our children's hospital were asked to participate in a daily safety brief, reporting daily events and unexpected outcomes within their scope of responsibility. Participants were surveyed before and after implementation of the safety brief about communication and awareness of events in the hospital. The length of the brief and percentage of departments reporting unexpected outcomes were measured. The analysis of the presurvey and the postsurvey showed a statistically significant improvement in the questions related to the awareness of daily events as well as communication and relationships between departments. The monthly mean length of time for the brief was 15 minutes or less. Unexpected outcomes were reported by 50% of the departments for 8 months. A daily safety brief can be successfully implemented in a children's hospital. Communication between departments and awareness of daily events were improved. Implementation of a daily safety brief is a step toward becoming a high reliability organization.

Relativistic beaming and orientation effects in core-dominated quasars

International Nuclear Information System (INIS)

Ubachukwu, A.A.; Chukwude, A.E.

2002-07-01

In this paper, we investigate the relativistic beaming effects in a well-defined sample of core- dominated quasars using the correlation between the relative prominence of the core with respect to the extended emission (defined as the ratio of the core- to the lobe- flux density measured in the rest frame of the source) and the projected linear size as an indicator of relativistic beaming and source orientation. Based on the orientation-dependent relativistic beaming and unification paradigm for high luminosity sources in which the Fanaroff-Riley class-ll radio galaxies form the unbeamed parent population of both the lobe- and core-dominated quasars which are expected to lie at successively smaller angles to the line of sight, we find that the flows in the cores of these core-dominated quasars are highly relativistic, with optimum bulk Lorentz factor, γ opt ∼6-16, and also highly anisotropic, with an average viewing angle, ∼ 9 deg. - 16 deg. Furthermore, the largest boosting occurs within a critical cone angle of ∼ 4 deg. - 10 deg. The results suggest that relativistic bulk flow appears to extend to kilo-parsec scales in these sources. (author)

Powerful Radio Galaxies with Simbol-X: the Nuclear Environment

Science.gov (United States)

Torresi, E.; Grandi, P.; Malaguti, G.; Palumbo, G. G. C.; Bianchin, V.

2009-05-01

Fanaroff & Riley type II radio galaxies (FRII) are complex objects. In particular FRII Narrow Line Radio Galaxies (NLRG), optically classified as High Excitation Galaxies (HEG) show X-ray spectra very similar to their radio-quiet counterparts, the Seyfert 2 galaxies. They show 2-10 keV continua heavily obscured (NH~1023-24 cm-2) and intense FeKα lines, typical cold matter reprocessing features. Moreover recent Chandra and XMM-Newton observations suggest that the soft X-ray emission of HEG and Seyfert 2 have a common origin from photoionized gas, reinforcing the idea that not only their nuclear engine but also the circumnuclear gas (at least the warm phase) are similar. On the contrary, our knowledge of NLRG HEG above 10 keV is very poor when compared to brighter Seyfert 2. As a consequence, the physical properties of the cold phase of the circumnuclear gas (possibly linked to a dusty torus) are largely unknown. Thanks to its high sensitivity up to 80 keV, Simbol-X will provide very accurate spectra and will allow a direct comparison between the NLRG and Seyfert 2 cold environments.

The potential of Mythimna sequax Franclemont eggs for the production of Trichogramma spp. after cryopreservation in liquid nitrogen

Directory of Open Access Journals (Sweden)

Magda Fernanda Paixão

Full Text Available ABSTRACT The cryopreservation of noctuid eggs in liquid nitrogen has proved be a promising tool in the mass production of Trichogramma, however studies into this technique have only just begun. This study evaluated the response of different densities of the female of Trichogramma pretiosum Riley to the parasitism of Mythimna sequax eggs stored and not stored in liquid nitrogen, and the performance of females reared only in cryopreserved eggs. The study evaluated the influence of the number of T. pretiosum females (4, 8 and 12 released to parasitise 40 M. sequax eggs, stored and not stored for 15 days in liquid nitrogen, as well as the performance of T. pretiosum females reared in eggs stored for three generations and females reared in non-stored eggs. Parasitism by T. pretiosum in stored eggs was 84%, twice the value obtained in previous studies. The emergence of parasitoids was greater than 95% in both experiments. The performance of females raised in stored eggs did not differ from that of females raised in non-stored eggs. The data show that the technique of cryopreservation of M. sequax eggs may be a viable alternative in the mass production of T. pretiosum.

THE MISSING GOLIATH'S SLINGSHOT: MASSIVE BLACK HOLE RECOIL AT M83

International Nuclear Information System (INIS)

Dottori, Horacio; Diaz, Ruben J.; Facundo Albacete-Colombo, Juan; Mast, Damian

2010-01-01

The Fanaroff-Riley II radio source J133658.3-295105, which is also an X-ray source, appears to be projected onto the disk of the barred-spiral galaxy M83 at about 60'' from the galaxy's optical nucleus. J133658.3-295105 and its radio lobes are aligned with the optical nucleus of M 83 and two other radio sources, neither of which are supernova remnants or H II regions. Due to this peculiar on-the-sky projection, J133658.3-295105 was previously studied by Gemini+GMOS optical spectroscopy, which marginally revealed the presence of Hα in emission receding at 130 km s -1 with respect to the optical nucleus. In this Letter, we reanalyze the Chandra spectroscopy carried out in 2000. We show that J133658.3-295105 presents an Fe Kα emission line at a redshift of z = 0.018. This redshift is compatible with a black hole at the distance of M 83. We discuss similarities to the recently reported micro-quasar in NGC 5408. This finding reinforces the kicked-off black hole scenario for J133658.3-295105.

On the results of the Pierre Auger Observatory

Energy Technology Data Exchange (ETDEWEB)

Lemoine, Martin, E-mail: lemoine@iap.f [Institut d' Astrophysique de Paris, CNRS, UPMC, 98 bis boulevard Arago, F-75014 Paris (France)

2009-05-15

This paper discusses the correlation recently reported by the Pierre Auger Observatory (PAO) of the arrival directions of the highest energy cosmic rays with active galactic nuclei (AGN) located within 75 Mpc. It is argued that these correlating AGN do not have the power required to be the sources of those particles. It is further argued that the current PAO data disfavors giant radio-galaxies (both Fanaroff-Riley type I and II) as sources of ultra-high energy cosmic rays. The reported correlation with AGN should thus be understood as follows: the AGN trace the distribution of the local large scale structure, in which the actual sources of ultrahigh energy cosmic rays camouflage. The most promising theoretical candidates for these sources are then gamma-ray bursts and magnetars. One important consequence of the above is that one will not detect counterparts in gamma-rays, neutrinos or gravitational waves to the sources of these observed ultrahigh energy cosmic rays, since the cosmic rays are delayed by extragalactic magnetic fields on timescales approx10{sup 4}-10{sup 5} yrs much larger than the emission timescale of these sources.

On the results of the Pierre Auger Observatory

International Nuclear Information System (INIS)

Lemoine, Martin

2009-01-01

This paper discusses the correlation recently reported by the Pierre Auger Observatory (PAO) of the arrival directions of the highest energy cosmic rays with active galactic nuclei (AGN) located within 75 Mpc. It is argued that these correlating AGN do not have the power required to be the sources of those particles. It is further argued that the current PAO data disfavors giant radio-galaxies (both Fanaroff-Riley type I and II) as sources of ultra-high energy cosmic rays. The reported correlation with AGN should thus be understood as follows: the AGN trace the distribution of the local large scale structure, in which the actual sources of ultrahigh energy cosmic rays camouflage. The most promising theoretical candidates for these sources are then gamma-ray bursts and magnetars. One important consequence of the above is that one will not detect counterparts in gamma-rays, neutrinos or gravitational waves to the sources of these observed ultrahigh energy cosmic rays, since the cosmic rays are delayed by extragalactic magnetic fields on timescales ∼10 4 -10 5 yrs much larger than the emission timescale of these sources.

Are Polar Field Magnetic Flux Concentrations Responsible for Missing Interplanetary Flux?

Science.gov (United States)

Linker, Jon A.; Downs, C.; Mikic, Z.; Riley, P.; Henney, C. J.; Arge, C. N.

2012-05-01

Magnetohydrodynamic (MHD) simulations are now routinely used to produce models of the solar corona and inner heliosphere for specific time periods. These models typically use magnetic maps of the photospheric magnetic field built up over a solar rotation, available from a number of ground-based and space-based solar observatories. The line-of-sight field at the Sun's poles is poorly observed, and the polar fields in these maps are filled with a variety of interpolation/extrapolation techniques. These models have been found to frequently underestimate the interplanetary magnetic flux (Riley et al., 2012, in press, Stevens et al., 2012, in press) near the minimum part of the cycle unless mitigating correction factors are applied. Hinode SOT observations indicate that strong concentrations of magnetic flux may be present at the poles (Tsuneta et al. 2008). The ADAPT flux evolution model (Arge et al. 2010) also predicts the appearance of such concentrations. In this paper, we explore the possibility that these flux concentrations may account for a significant amount of magnetic flux and alleviate discrepancies in interplanetary magnetic flux predictions. Research supported by AFOSR, NASA, and NSF.

Efecto de substratos de la tirosinasa sobre el crecimiento del mela noma de Greene del jámster sirio (mesocricetus auratus

Directory of Open Access Journals (Sweden)

José Perea Sasiaín

1966-04-01

Full Text Available En el proceso de oxidación de la L- tirosina a melanina son notables dos productos intermediarios inestables: la DOPA-quinona y el DOPA cromo (II. Es evidente que estos compuestos no inhiben el crecimiento de las células del melanoma. Sin embargo, Chevremont describió la acción mitotóxica de los compuestos de oxidación de la adrenalina: adrenocromo (III y adrenolutina (IV sobre fibroblastos en cultivo de tejidos. Riley planteó la posibilidad de una "quimioterapia racional" del melanoma utilizando la orto-fenilendiamina. Otros autores han hecho indicaciones al respecto. Personalmente hemos estado interesados en encontrar un substrato del sistema oxidativo fenolásico (tirosinasa del melanocito, capaz de generar productos tóxicos, según el concepto de "sintesis" letal de Peters. Aun cuando la especificidad de la tirosinasa del melanoma es mayor que la de los vegetales, encontramos que es capaz de oxidar rápidamente algunos derivados metilados en la cadena lateral de la DOPA y, más lentamente, ciertos  análogos de la adrenalina.

Comparison of outcome in 1809 patients treated with drug-eluting stents or bare-metal stents in a real-world setting

Directory of Open Access Journals (Sweden)

Vogt A

2011-11-01

Full Text Available Alexander Vogt1, Anke Schoelmerich1, Franziska Pollner1, Manuela Schlitt1, Uwe Raaz1, Lars Maegdefessel2, Iris Reindl1, Michael Buerke1, Karl Werdan1, Axel Schlitt11Department of Medicine III, Martin Luther-University, Halle, Germany; 2Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USAPurpose: The aim of this study was to determine the long-term safety of drug-eluting stent (DES versus bare metal stent (BMS implantation in a “real-world” setting.Patients and methods: A total of 1809 patients who were treated with implantation of either BMS or DES were assessed. Kaplan-Meier and multivariate Cox regression analyses concerning primary endpoint of cardiac mortality were performed.Results: A total of 609 patients received DES. Mean age was 66.2 ± 11.3 years, 69.4% were male, and 1517 (83.8% were treated for acute coronary syndrome (unstable angina 510 [28.2%], non-ST-elevation myocardial infarction [NSTEMI] 506 [28.0%], and ST-elevation myocardial infarction [STEMI] 501 [27.7%]. Mean follow-up was 34 ± 15 months. During follow-up, 268 patients died of cardiac causes (DES 42 [7.3%]; BMS 226 [19.6%]; P < 0.001. Univariate Kaplan-Meier analysis showed an advantage of DES over BMS concerning the primary endpoint (P < 0.001. When adjusting for classic risk factors and additional factors that affect the progression of coronary heart disease (CHD, DES was not found to be superior to BMS (hazard ratio 0.996, 95% confidence interval 0.455–2.182, P = 0.993. Severely impaired renal function was an independent predictor for cardiac mortality after stent implantation.Conclusion: Treatment with DES is safe in the long term, also in patients presenting with STEMI. However, in multivariate analyses it is not superior to BMS treatment.Keywords: coronary stent, outcome, renal insufficiency, myocardial infarction, STEMI

Compression of the right coronary artery by an aortic pseudoaneurysm after infective endocarditis: an unusual case of myocardial ischemia

Directory of Open Access Journals (Sweden)

Lacalzada-Almeida J

2017-12-01

Full Text Available Juan Lacalzada-Almeida,1 Alejandro De la Rosa-Hernández,1 María Manuela Izquierdo-Gómez,1 Javier García-Niebla,2 Iván Hernández-Betancor,1 Juan Alfonso Bonilla-Arjona,3 Antonio Barragán-Acea,1 Ignacio Laynez-Cerdeña1 1Cardiology Department, Hospital Universitario de Canarias, Tenerife, 2Health services from the Health Area of El Hierro, Valle del Golfo Health Center, El Hierro, 3Radiology Department, Hospital Universitario de Canarias, Tenerife, Spain Abstract: A 61-year-old male with a prosthetic St Jude aortic valve size 24 presented with heart failure symptoms and minimal-effort angina. Eleven months earlier, the patient had undergone cardiac surgery because of an aortic root dilatation and bicuspid aortic valve with severe regurgitation secondary to infectious endocarditis by Coxiela burnetii and coronary artery disease in the left circumflex coronary artery. Then, a prosthesis valve and a saphenous bypass graft to the left circumflex coronary artery were placed. The patient was admitted to the Cardiology Department of Hospital Universitario de Canarias, Tenerife, Spain and a transthoracic echocardiography was performed that showed severe paraprosthetic aortic regurgitation and an aortic pseudoaneurysm. The 64-slice multidetector computed tomography confirmed the pseudoaneurysm, originating from the right sinus of Valsalva, with a compression of the native right coronary artery and a normal saphenous bypass graft. On the basis of these findings, we performed surgical treatment with a favorable postoperative evolution. In our case, results from complementary cardiac imaging techniques were crucial for patient management. The multidetector computed tomography allowed for a confident diagnosis of an unusual mechanism of coronary ischemia. Keywords: pseudoaneurysm, infective endocarditis, myocardial ischemia, aortic valve prosthesis

Erythropoietin and a nonerythropoietic peptide analog promote aortic endothelial cell repair under hypoxic conditions: role of nitric oxide

Directory of Open Access Journals (Sweden)

Heikal L

2016-08-01

Full Text Available Lamia Heikal,1 Pietro Ghezzi,1 Manuela Mengozzi,1 Blanka Stelmaszczuk,2 Martin Feelisch,2 Gordon AA Ferns1 1Brighton and Sussex Medical School, Falmer, Brighton, 2Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital and Institute for Life Sciences, Southampton, UK Abstract: The cytoprotective effects of erythropoietin (EPO and an EPO-related nonerythropoietic analog, pyroglutamate helix B surface peptide (pHBSP, were investigated in an in vitro model of bovine aortic endothelial cell injury under normoxic (21% O2 and hypoxic (1% O2 conditions. The potential molecular mechanisms of these effects were also explored. Using a model of endothelial injury (the scratch assay, we found that, under hypoxic conditions, EPO and pHBSP enhanced scratch closure by promoting cell migration and proliferation, but did not show any effect under normoxic conditions. Furthermore, EPO protected bovine aortic endothelial cells from staurosporine-induced apoptosis under hypoxic conditions. The priming effect of hypoxia was associated with stabilization of hypoxia inducible factor-1α, EPO receptor upregulation, and decreased Ser-1177 phosphorylation of endothelial nitric oxide synthase (NOS; the effect of hypoxia on the latter was rescued by EPO. Hypoxia was associated with a reduction in nitric oxide (NO production as assessed by its oxidation products, nitrite and nitrate, consistent with the oxygen requirement for endogenous production of NO by endothelial NOS. However, while EPO did not affect NO formation in normoxia, it markedly increased NO production, in a manner sensitive to NOS inhibition, under hypoxic conditions. These data are consistent with the notion that the tissue-protective actions of EPO-related cytokines in pathophysiological settings associated with poor oxygenation are mediated by NO. These findings may be particularly relevant to atherogenesis and postangioplasty restenosis. Keywords

Strategic Planning for Irwin Army Community Hospital: The Assessment and Implementation of Services, in Order to Meet Fort Riley’s Increasing Population

Science.gov (United States)

2008-07-05

Hemorrhoidectomy Mastectomy Gallbladder Removal Thyroid Removal Peripheral Vascular Surgery Exploratory Laparotomy Ear, Nose and Throat Tonsilleetomy... Extraction Periodontal Surgery Orthopedic Surgery Arthroscopy (Shoulder, Wrist, Hip, Knee and Ankle) Carpal Tunnel Release Tendon Repair Removal

Modeling the role of public transportation in sustaining tuberculosis transmission in South Africa.

Science.gov (United States)

Andrews, Jason R; Morrow, Carl; Wood, Robin

2013-03-15

Current tuberculosis notification rates in South Africa are among the highest ever recorded. Although the human immunodeficiency virus epidemic has been a critical factor, the density of respiratory contacts in high-risk environments may be an important and underappreciated driver. Using a modified Wells-Riley model for airborne disease transmission, we estimated the risk of tuberculosis transmission on 3 modes of public transit (minibus taxis, buses, and trains) in Cape Town, South Africa, using exhaled carbon dioxide as a natural tracer gas to evaluate air exchange. Carbon dioxide measurements were performed between October and December of 2011. Environmental risk, reflected in the rebreathed fraction of air, was highest in minibus taxis and lowest in trains; however, the average number of passengers sharing an indoor space was highest in trains and lowest in minibus taxis. Among daily commuters, the annual risk of tuberculosis infection was projected to be 3.5%-5.0% and was highest among minibus taxi commuters. Assuming a duration of infectiousness of 1 year, the basic reproductive number attributable to transportation was more than 1 in all 3 modes of transportation. Given its poor ventilation and high respiratory contact rates, public transportation may play a critical role in sustaining tuberculosis transmission in South African cities.

Experience with the once-yearly histrelin (GnRHa subcutaneous implant in the treatment of central precocious puberty

Directory of Open Access Journals (Sweden)

Katherine A Lewis

2008-12-01

Full Text Available Katherine A Lewis, Erica A EugsterDepartment of Pediatrics, Indiana University School of Medicine, Riley Hospital for Children, Indianapolis, USAAbstract: In 2007, a hydrogel histrelin implant was approved for the treatment of children with central precocious puberty (CPP. Children with CPP commonly have reduced height potential due to premature closure of the epiphyseal growth plates from exposure to sex steroids. Gonadotropin-releasing hormone analog (GnRHa treatment halts puberty and allows for improvement of adult height. A hydrogel implant delivery system utilizing the potent GnRHa, histrelin, was first developed for use in men with prostate cancer. A once yearly histrelin subcutaneous implant was subsequently developed for the treatment of children with CPP. Studies to date have demonstrated safety, tolerability, and effectiveness of this treatment option in patients treated up to 2 years. The most common adverse effects of the implant relate to implant site pain or bruising. Cost of this treatment seems comparable to somewhat higher than the commonly used GnRHa treatment option, depot leuprolide. While long term studies are needed to establish continued efficacy and safety beyond 2 years of treatment, the histrelin implant appears to be an attractive option for GnRHa treatment in patients with CPP.Keywords: central precocious puberty, histrelin, implant, gonadotropin-releasing-hormone analogs

Impact of integrated pest management on the population of leafminers, fruit borers, and natural enemies in tomato

Directory of Open Access Journals (Sweden)

Miranda Moacyr Mascarenhas Motta

2005-01-01

Full Text Available The objective of this work was to evaluate the impact of integrated pest management (IPM in the productivity of the tomato and in the populations of leafminers, fruit borers, and natural enemies in tomato crops. The treatments were calendar (spraying twice weekly with insecticides and fungicides, IPM (spraying when action thresholds were achieved, and control (no pesticide was applied. IPM was the most efficient system of pest control due to presenting similar productivity and 65.6% less pesticide applications than in the calendar. The attack of Tuta absoluta (Meyrick (Lepidoptera: Gelechiidae and Liriomyza spp. (Diptera: Agromyzidae to the leaves only achieved the action threshold in the final phase of the cultivation. The main fruit borer was Neoleucinoides elegantalis (Guen. (Lepidoptera: Crambidae, followed by T. absoluta and Spodoptera eridania (Cr. (Lepidoptera: Noctuidae. The natural enemy populations were severely reduced by excessive pesticide applications. Predators were more abundant than parasitoids. The most abundant predators were Araneidae, Anthicus sp. (Coleoptera: Anthicidae, Cycloneda sanguinea larva (L. (Coleoptera: Coccinellidae, Staphylinidae adults (Coleoptera, Orius sp. and Xylocoris sp. (Hemiptera: Anthocoridae, Formicidae (Hymenoptera, and Phlaeothripidae (Thysanoptera. The most abundant parasitoids were Hymenoptera of the families Eulophidae, Braconidae (Bracon sp. and Chelonus sp., Trichogrammatidae [Trichogramma pretiosum (Riley] and Bethylidae (Goniozus nigrifemur Ashmead, besides Tachinidae (Diptera.

Scat removal: A source of bias in feces-related studies

Science.gov (United States)

Livingston, T.R.; Gipson, P.S.; Ballard, W.B.; Sanchez, D.M.; Krausman, P.R.

2005-01-01

Consumption of feces (coprophagy) may alter findings of dietary studies and population estimates based on fecal analyses, but its magnitude is poorly understood. We investigated seasonal incidence of scat removal on Fort Riley, Kansas, from January through December 2000. We placed feces from captive bobcats (Lynx rufus), captive coyotes (Canis latrans), and free-ranging coyotes randomly on tracking stations in forest and prairie landscapes to determine rates of scat removal by local wildlife. Rates of removal of feces from captive bobcats, captive coyotes, and free-ranging coyotes varied from 7% during spring to 50% during summer. We identified opossums (Didelphis virginiana) as the most common species present at stations where scat removal occurred. Feces may be an important seasonal source of food for opossums and may provide seasonal dietary supplements for other species. Other factors responsible for disturbance of feces included a woodrat (Neotoma floridana) caching coyote feces, removal of captive coyote feces by free-ranging coyotes accompanied by deposition of fresh feces, a bobcat burying a captive bobcat sample and depositing fresh feces, and rain storms. Dietary studies based on fecal analyses could be biased by scat removal, assuming that contents in feces are representative of the proportion of foods consumed.

Physiological Changes to the Cardiovascular System at High Altitude and Its Effects on Cardiovascular Disease.

Science.gov (United States)

Riley, Callum James; Gavin, Matthew

2017-06-01

Riley, Callum James, and Matthew Gavin. Physiological changes to the cardiovascular system at high altitude and its effects on cardiovascular disease. High Alt Med Biol. 18:102-113, 2017.-The physiological changes to the cardiovascular system in response to the high altitude environment are well understood. More recently, we have begun to understand how these changes may affect and cause detriment to cardiovascular disease. In addition to this, the increasing availability of altitude simulation has dramatically improved our understanding of the physiology of high altitude. This has allowed further study on the effect of altitude in those with cardiovascular disease in a safe and controlled environment as well as in healthy individuals. Using a thorough PubMed search, this review aims to integrate recent advances in cardiovascular physiology at altitude with previous understanding, as well as its potential implications on cardiovascular disease. Altogether, it was found that the changes at altitude to cardiovascular physiology are profound enough to have a noteworthy effect on many forms of cardiovascular disease. While often asymptomatic, there is some risk in high altitude exposure for individuals with certain cardiovascular diseases. Although controlled research in patients with cardiovascular disease was largely lacking, meaning firm conclusions cannot be drawn, these risks should be a consideration to both the individual and their physician.

The effect of reinforcement percentages on properties of copper matrix composites reinforced with TiC particles

Energy Technology Data Exchange (ETDEWEB)

Bagheri, GH.A., E-mail: Gh.a.bagheri65@gmail.com

2016-08-15

In this research, copper matrix composites reinforced with different amounts of titanium carbide particles were produced by mechanical milling and in-situ formation of reinforcements. Morphology and size of milled powders were inspected by scanning electron microscopy (SEM) several times during milling process. Changes in lattice parameter, crystallite size, lattice strain, dislocation density and Gibbs free energy changes (due to increasing in dislocation densities and grain boundaries) in different samples (with different TiC particles contents) were studied by X-Ray Diffraction technique with Cu-kα radiation and using Nelson–Riley method and Williamson–Hall equation. Microstructure of samples after sintering was investigated by FESEM. Finally, densitometry, hardness, determination of electrical resistance and pin on disk wear test were performed and effect of reinforcement percentages on the physical and mechanical properties of composites was studied. Results show incredible improvement in mechanical properties with increasing in TiC value, even though, electrical conductivity dropped off considerably. - Highlights: • Microstructures, mechanical and physical properties of composites have been studied. • Stored Gibbs free energy of dislocations and grain boundaries has been calculated. • Gibbs free energy increased with increasing in titanium percent. • Higher TiC percentage led to better mechanical and unfavorable physical properties.

Intrajudge and Interjudge Reliability of the Stuttering Severity Instrument-Fourth Edition.

Science.gov (United States)

Davidow, Jason H; Scott, Kathleen A

2017-11-08

The Stuttering Severity Instrument (SSI) is a tool used to measure the severity of stuttering. Previous versions of the instrument have known limitations (e.g., Lewis, 1995). The present study examined the intra- and interjudge reliability of the newest version, the Stuttering Severity Instrument-Fourth Edition (SSI-4) (Riley, 2009). Twelve judges who were trained on the SSI-4 protocol participated. Judges collected SSI-4 data while viewing 4 videos of adults who stutter at Time 1 and 4 weeks later at Time 2. Data were analyzed for intra- and interjudge reliability of the SSI-4 subscores (for Frequency, Duration, and Physical Concomitants), total score, and final severity rating. Intra- and interjudge reliability across the subscores and total score concurred with the manual's reported reliability when reliability was calculated using the methods described in the manual. New calculations of judge agreement produced different values from those in the manual-for the 3 subscores, total score, and final severity rating-and provided data absent from the manual. Clinicians and researchers who use the SSI-4 should carefully consider the limitations of the instrument. Investigation into the multitasking demands of the instrument may provide information on whether separating the collection of data for specific variables will improve intra- and interjudge reliability of those variables.

Insight into the effects of modifying chromophores on the performance of quinoline-based dye-sensitized solar cells

Science.gov (United States)

Mao, Mao; Wang, Jian-Bo; Liu, Xiu-Lin; Wu, Guo-Hua; Fang, Xia-Qin; Song, Qin-Hua

2018-02-01

A series of organic dyes based on quinoline as an electron-deficient π-linker, were designed and synthesized for dye sensitized solar cells (DSSC) application. These push-pull conjugated dyes, sharing same anchoring group with distinctive electron-rich donating groups such as N,N-diethyl (DEA-Q), 3,6-dimethoxy carbazole (CBZ-Q), bis(4-butoxyphenyl)amine (BPA-Q), were synthesized by Riley oxidation of sbnd CH3 followed by Knoevenagel condensation of the corresponding aldehyde precursors 2a-c with cyanoacrylic acid. The optical, electrochemical, theoretical calculation and photovoltaic properties with these three dyes were systematically investigated. Compared to DEA-Q and CBZ-Q, BPA-Q possesses better light harvesting properties with regard to extended conjugate length, red-shifted intramolecular charge transfer band absorption and broaden light-responsive IPCE spectrum, resulting in a greater short circuit photocurrent density output. BPA-Q also has improved open-circuit voltage due to the apparent large charge recombination resistance. Consequently, assembled with iodine redox electrolytes, the device with BPA-Q achieved the best overall conversion efficiency value of 3.07% among three dyes under AM 1.5G standard conditions. This present investigation demonstrates the importance of various N-substituent chromophores in the prevalent D-π-A type organic sensitizers for tuning the photovoltaic performance of their DSSCs.

Boiler materials for ultra supercritical coal power plants

Energy Technology Data Exchange (ETDEWEB)

Purgert, Robert [Energy Industries of Ohio, Independence, OH (United States); Shingledecker, John [Electric Power Research Inst., Palo Alto, CA (United States); Pschirer, James [Alstom Power Inc., Windsor, CT (Untied States); Ganta, Reddy [Alstom Power Inc., Windsor, CT (Untied States); Weitzel, Paul [The Babcock & Wilcox Company, Baberton, OH (United States); Sarver, Jeff [The Babcock & Wilcox Company, Baberton, OH (United States); Vitalis, Brian [Riley Power Inc., Worchester, WA (United States); Gagliano, Michael [Foster Wheeler North America Corp., Hampton, NJ (United States); Stanko, Greg [Foster Wheeler North America Corp., Hampton, NJ (United States); Tortorelli, Peter [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

2015-12-29

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have undertaken a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of advanced ultrasupercritical (A-USC) steam conditions up to 760°C (1400°F) and 35 MPa (5000 psi). A limiting factor to achieving these higher temperatures and pressures for future A-USC plants are the materials of construction. The goal of this project is to assess/develop materials technology to build and operate an A-USC boiler capable of delivering steam with conditions up to 760°C (1400°F)/35 MPa (5000 psi). The project has successfully met this goal through a focused long-term public-private consortium partnership. The project was based on an R&D plan developed by the Electric Power Research Institute (EPRI) and an industry consortium that supplemented the recommendations of several DOE workshops on the subject of advanced materials. In view of the variety of skills and expertise required for the successful completion of the proposed work, a consortium led by the Energy Industries of Ohio (EIO) with cost-sharing participation of all the major domestic boiler manufacturers, ALSTOM Power (Alstom), Babcock and Wilcox Power Generation Group, Inc. (B&W), Foster Wheeler (FW), and Riley Power, Inc. (Riley), technical management by EPRI and research conducted by Oak Ridge National Laboratory (ORNL) has been developed. The project has clearly identified and tested materials that can withstand 760°C (1400°F) steam conditions and can also make a 700°C (1300°F) plant more economically attractive. In this project, the maximum temperature capabilities of these and other available high-temperature alloys have been assessed to provide a basis for

CONSERVANDO LA MARIPOSA MONARCA (Danaus plexippus L., CONSERVANDO ENEMIGOS NATURALES DE PLAGAS

Directory of Open Access Journals (Sweden)

Hipólito Cortez-Madrigal

2014-01-01

Full Text Available El potencial de la mariposa monarca ( Danaus plexippus L. como hospedera alterna de enemi - gos naturales de plagas, se investigó (marzo de 2012 a marzo de 2013 en una plantación de As - clepias curassavica L. en la Ciénega de Chapala, Villamar, Michoacán. Para ello, se colectaron muestras de huevos del fitófago y se incubaron en cajas Petri para el registro de parasitismo . Los resultados indican que D. plexippus estuvo presente durante todo el año en la región de estudio, con los niveles máximos de oviposturas durante agosto-diciembre. Trichogramma pretiosum Riley fue el pa - rasitoide predominante, con niveles de parasitismo hasta de 100 %; su mayor actividad coincidió con los niveles máximos de oviposturas del fitófago . La emergencia múltiple de parasitoides en cada huevo de la mariposa contribuye al incremento de las poblaciones de T. pretiosum en campo . Basados en ello, D. plexippus puede considerarse un excelente hospedero alterno de T. pretiosum, enemigo natural de lepidópteros plaga. Adicionalmente, la estrategia propuesta busca contribuir con la conservación e in - cremento de las poblaciones de la monarca, tanto mediante la conservación de su hospedera A. curassavica como por la eventual reducción en el uso de insecticidas para eliminar plagas.

Lethal and behavioral effects of selected novel pesticides on adults of Trichogramma pretiosum (Hymenoptera: Trichogrammatidae).

Science.gov (United States)

Khan, Muhammad Ashraf; Khan, Hizbullah; Ruberson, John R

2015-12-01

Growing demand for reduced chemical inputs in agricultural systems requires more effective integration of biological control with pesticides. The egg parasitoid Trichogramma pretiosum Riley is an important natural enemy of lepidopteran pests, used in biological control. In an investigation of the interaction of T. pretiosum and pesticides, we studied the acute toxicity of 19 pesticides (insecticides, miticides, fungicides and herbicides) to adult parasitoids and the behavioral effects of 11 pesticides on foraging parasitoid females, including host antennation, stinging and host feeding. At recommended field doses, fipronil, dinotefuran, spinetoram, tolfenpyrad and abamectin induced nearly 100% adult mortality within 24 h of exposure to treated cotton leaves by comparison with controls. Acetamiprid was also toxic, but significantly less so than the former materials. The other pesticides had no significant toxic effects. Only glufosinate ammonium exhibited increased toxicity among the non-toxic materials when increased two- or fourfold over recommended rates. The foraging behavior of parasitoids was affected only by tolfenpyrad among the materials tested. Most novel pesticides, except for several insecticides, exhibited little to no acute toxicity to the parasitoid. Parasitoid foraging behavior was only affected by tolfenpyrad, indicating that parasitoids could successfully forage on eggs treated with most pesticides evaluated. Therefore, many of these pesticides may have good compatibility with Trichogramma. © 2015 Society of Chemical Industry.

The association between self-injurious behaviors and autism spectrum disorders

Directory of Open Access Journals (Sweden)

Minshawi NF

2014-04-01

Full Text Available Noha F Minshawi,1 Sarah Hurwitz,2 Jill C Fodstad,1 Sara Biebl,3 Danielle H Morriss,4 Christopher J McDougle51Department of Psychiatry, Indiana University School of Medicine, Christian Sarkine Autism Treatment Center, James Whitcomb Riley Hospital for Children at Indiana University Health, Indianapolis, IN, USA; 2School of Education, Indiana University, Bloomington, IN, USA; 3Child and Adolescent Behavioral Health, Sanford Health, Fargo, ND, USA; 4Medical College of South Carolina, Charleston, SC, USA; 5Departments of Psychiatry and Pediatrics, Lurie Center for Autism, Massachusetts General Hospital and MassGeneral Hospital for Children, Harvard Medical School, Boston, MA, USAAbstract: A key area of concern in children with autism spectrum disorders (ASDs are self-injurious behaviors (SIBs. These are behaviors that an individual engages in that may cause physical harm, such as head banging, or self-biting. SIBs are more common in children with ASD than those who are typically developing or have other neurodevelopmental disabilities. Therefore, it is important that clinicians who work with children with ASD have a solid understanding of SIB. The purpose of this paper is to review the research on the epidemiology of SIB in children with ASD, factors that predict the presence of SIB in this population, and the empirically supported behavioral treatments available.Keywords: self-injury, autism spectrum disorders, applied behavior analysis

A radio and optical study of Molonglo radio sources

Science.gov (United States)

Ishwara-Chandra, C. H.; Saikia, D. J.; McCarthy, P. J.; van Breugel, W. J. M.

2001-05-01

We present multi-wavelength radio observations with the Very Large Array, and narrow- and broad-band optical observations with the 2.5-m telescope at the Las Campanas Observatory, of a well-defined sample of high-luminosity Fanaroff-Riley class II radio galaxies and quasars, selected from the Molonglo Reference Catalogue 1-Jy sample. These observations were carried out as part of a programme to investigate the effects of orientation and environment on some of the observed properties of these sources. We examine the dependence of the Liu-Pooley relationship, which shows that radio lobes with flatter radio spectra are less depolarized, on size, identification and redshift, and show that it is significantly stronger for smaller sources, with the strength of the relationship being similar for both radio galaxies and quasars. In addition to Doppler effects, there appear to be intrinsic differences between the lobes on opposite sides. We discuss the asymmetry in brightness and location of the hotspots, and present estimates of the ages and velocities from matched-resolution observations in the L and C bands. Narrow- and broad-band optical images of some of these sources were made to study their environments and correlate with the symmetry parameters. An extended emission-line region is seen in a quasar, and in four of the objects possible companion galaxies are seen close to the radio axis.

Lethal effects of selected novel pesticides on immature stages of Trichogramma pretiosum (Hymenoptera: Trichogrammatidae).

Science.gov (United States)

Khan, Muhammad Ashraf; Ruberson, John R

2017-12-01

Trichogramma pretiosum Riley is an important egg parasitoid and biological control agent of caterpillar pests. We studied the acute toxicity of 20 pesticides (14 insecticides/miticides, three fungicides and three herbicides) exposed to recommended field rates. Egg, larval, and pupal stages of the parasitoid in their hosts were dipped in formulated solutions of the pesticides and evaluated 10 days later for percentage of host eggs with holes, number of parasitoids emerged per egg with holes, and stage-specific mortality of immature as well as adult wasps within the host eggs. Seven insecticides (buprofezin, chlorantraniliprole, spirotetramat, flonicamid, flubendiamide) and miticides (spiromesifen, cyflumetofen), one herbicide (nicosulfuron), and three fungicides (myclobutanil, pyraclostrobin, trifloxystrobin + tebuconazole) caused no significant mortality to immature stages or pre-emergent adult parasitoids relative to controls. By contrast, seven insecticides/miticides (abamectin, acetamiprid, dinotefuran, fipronil, novaluron, spinetoram, tolfenpyrad) adversely affected immature and pre-emergent adult T. pretiosum, with tolfenpyrad being particularly lethal. Two herbicides had moderate (glufosinate ammonium) to severe (s-metolachlor) acute lethal effects on the immature parasitoids. This study corroborates earlier findings with adult T. pretiosum. Over half of the pesticides - and all the fungicides - tested in the current study would appear to be compatible with the use of T. pretiosum in integrated pest management programs, with respect to acute parasitoid mortality. © 2017 Society of Chemical Industry. © 2017 Society of Chemical Industry.

Clusters of galaxies associated with quasars. I. 3C 206

International Nuclear Information System (INIS)

Ellingson, E.; Yee, H.K.C.; Green, R.F.; Kinman, T.D.

1989-01-01

Multislit spectroscopy and three-color CCD photometry of the galaxies in the cluster associated with the quasar 3C 206 (PKS 0837-12) at z = 0.198 are presented. This cluster is the richest environment of any low-redshift quasar observed in an Abell richness class 1 cluster. The cluster has a very flattened structure and a very concentrated core about the quasar. Most of the galaxies in this field have colors and luminosities consistent with normal galaxies at this redshift. The background-corrected blue fraction of galaxies is consistent with values for other rich clusters. The existence of several blue galaxies in the concentrated cluster core is an anomaly for a region of such high galaxy density, however, suggesting the absence of a substantial intracluster medium. This claim is supported by the Fanaroff-Riley (1974) class II morphology of the radio source. The velocity dispersion calculated from 11 spectroscopically confirmed cluster members is 500 + or - 110 km/s, which is slightly lower than the average for Abell class 1 clusters. A high frequency of interaction between the quasar host galaxy and cluster core members at low relative velocities, and a low intracluster gas pressure, may comprise a favorable environment for quasar activity. The properties of the cluster of galaxies associated with 3C 206 are consistent with this model. 59 refs

Numerical investigation of upper-room UVGI disinfection efficacy in an environmental chamber with a ceiling fan.

Science.gov (United States)

Zhu, Shengwei; Srebric, Jelena; Rudnick, Stephen N; Vincent, Richard L; Nardell, Edward A

2013-01-01

This study investigated the disinfection efficacy of the upper-room ultraviolet germicidal irradiation (UR-UVGI) system with ceiling fans. The investigation used the steady-state computational fluid dynamics (CFD) simulations to solve the rotation of ceiling fan with a rotating reference frame. Two ambient air exchange rates, 2 and 6 air changes per hour (ACH), and four downward fan rotational speeds, 0, 80, 150 and 235 rpm were considered. In addition, the passive scalar concentration simulations incorporated ultraviolet (UV) dose by two methods: one based on the total exposure time and average UV fluence rate, and another based on SVE3* (New Scale for Ventilation Efficiency 3), originally defined to evaluate the mean age of the air from an air supply opening. Overall, the CFD results enabled the evaluation of UR-UVGI disinfection efficacy using different indices, including the fraction of remaining microorganisms, equivalent air exchange rate, UR-UVGI effectiveness and tuberculosis infection probability by the Wells-Riley equation. The results indicated that air exchange rate was the decisive factor for determining UR-UVGI performance in disinfecting indoor air. Using a ceiling fan could also improve the performance in general. Furthermore, the results clarified the mechanism for the ceiling fan to influence UR-UVGI disinfection efficacy. © 2013 The Authors Photochemistry and Photobiology © 2013 The American Society of Photobiology.

Iron-rich (Fe1-x-yNixCoy)88Zr7B4Cu1 nanocrystalline magnetic materials for high temperature applications with minimal magnetostriction

Science.gov (United States)

Martone, Anthony; Dong, Bowen; Lan, Song; Willard, Matthew A.

2018-05-01

As inductor technology advances, greater efficiency and smaller components demand new core materials. With recent developments of nanocrystalline magnetic materials, soft magnetic properties of these cores can be greatly improved. FeCo-based nanocrystalline magnetic alloys have resulted in good soft magnetic properties and high Curie temperatures; however, magnetoelastic anisotropies persist as a main source of losses. This investigation focuses on the design of a new Fe-based (Fe,Ni,Co)88Zr7B4Cu1 alloy with reduced magnetostriction and potential for operation at elevated temperatures. The alloys have been processed by arc melting, melt spinning, and annealing in a protective atmosphere to produce nanocrystalline ribbons. These ribbons have been analyzed for structure, hysteresis, and magnetostriction using X-Ray diffraction, vibrating sample magnetometry (VSM), and a home-built magnetostriction system, respectively. In addition, Curie temperatures of the amorphous phase were analyzed to determine the best performing, high-temperature material. Our best result was found for a Fe77Ni8.25Co2.75Zr7B4Cu1 alloy with a 12 nm average crystallite size (determined from Scherrer broadening) and a 2.873 Å lattice parameter determined from the Nelson-Riley function. This nanocrystalline alloy possesses a coercivity of 10 A/m, magnetostrictive coefficient of 4.8 ppm, and amorphous phase Curie temperature of 218°C.

Forensic analyses of explosion debris from the January 2, 1992 Pd/D2O electrochemistry incident at SRI International

International Nuclear Information System (INIS)

Andresen, B.; Whipple, R.; Vandervoort, D.; Grant, P.

1992-01-01

The January 2, 1992 explosion in an electrochemistry laboratory at SRI International (SRI) resulted in the death of scientist Andrew Riley, and gained some notoriety due to its association with experimental work in the controversial field of cold fusion research. Selected components of explosion debris were subjected to forensic analyses at LLNL to elucidate potential causes of, or contributing factors to, the explosion. Interrogation of the debris by LLNL encompassed nuclear, chemical, physical, and materials investigations. Nuclear studies for the determination of tritium and neutron-activation products in stainless steel and brass were negative. No evidence of signature species indicative of orthodox nuclear events was detected. The inorganic and particulate analyses were likewise negative with respect to residues of unexpected chemical species. Such target compounds included conventional explosives, accelerants, propellants, or any exceptional industrial chemicals. The GC-MS analyses of trace organic components in the explosion debris provided perhaps the most interesting results obtained at LLNL. Although no evidence of organic explosives, oxidizers, or other unusual compounds was detected, the presence of a hydrocarbon oil in the interior of the electrochemical cell was established. It is likely that its source was lubricating fluid from the machining of the metal cell components. If residues of organic oils are present during electrolysis experiments, the potential exists for an explosive reaction in the increasingly enriched oxygen atmosphere within the headspace of a metal cell

Structural analysis of a speech disorder of children with a mild mental retardation

Directory of Open Access Journals (Sweden)

Franc Smole

2004-05-01

Full Text Available The aim of this research was to define the structure of speech disorder of children with a mild mental retardation. 100 subjects were chosen among pupils from the 1st to the 4th grade of elementary school who were under logopaedic treatment. To determine speech comprehension Reynell's developmental scales were used and for evaluation of speech articulation the Three-position test for articulation evaluation. With the Bender test we determined a child's mental age as well as defined the signs of psychological disfunction of organic nature. For the field of phonological consciousness a Test of reading and writing disturbances was applied. Speech fluency was evaluated by the Riley test. Evaluation scales were adapted for determining speech-language levels and motor skills of speech organs and hands. Data on results in psychological test and on the family was summed up from the diagnostic treatment guidance documents. Social behaviour in school was evaluated by their teachers. Six factors which hierarchicallydefine the structure of speech disorder were determined by the factor analysis. We found out that signs of a child's brain lesion are the factor which has the most influence on a child's mental age. The results of this research might be helpful to logopaedists in determining a logopaedic treatment for children with a mild mental retardation.

The Controversy of Corporate Social Responsibility: What Is Best For Business

Directory of Open Access Journals (Sweden)

Danciu Victor

2015-12-01

Full Text Available The Corporate Social Responsibility (CSR is the subject of permanent theoretical debates and the constant object of a company's business practices but also of some controversy. This makes it necessary to bring some valid arguments to support the growing role of CSR in the company' s efforts to achieve its objectives. This article aims to contribute to a better understanding of CSR issues and how it may help by better meeting the demands of society. It begins with a brief overview of the phenomenon of social irresponsibility which is justifying a better understanding of CSR issues. Therefore, the second part deals with the concept and the improved content of CSR which includes an author’s proposal of a new updated structure of the CSR content and ends with the presentation of its potential contribution to the company's performance and to better satisfy the demands of society. The conclusions highlight the main ideas and arguments of the article. At first, they present the arguments in favor of CSR that are justified by the changes in contemporary society and then the ones which stems from the fact that the companies are members of the society. The article has as support the idea of Riley (2012 who argues that "ignoring CSR potentially damage stakeholders, embracing CSR creates value".

Repeatedly pairing vagus nerve stimulation with a movement reorganizes primary motor cortex.

Science.gov (United States)

Porter, Benjamin A; Khodaparast, Navid; Fayyaz, Tabbassum; Cheung, Ryan J; Ahmed, Syed S; Vrana, William A; Rennaker, Robert L; Kilgard, Michael P

2012-10-01

Although sensory and motor systems support different functions, both systems exhibit experience-dependent cortical plasticity under similar conditions. If mechanisms regulating cortical plasticity are common to sensory and motor cortices, then methods generating plasticity in sensory cortex should be effective in motor cortex. Repeatedly pairing a tone with a brief period of vagus nerve stimulation (VNS) increases the proportion of primary auditory cortex responding to the paired tone (Engineer ND, Riley JR, Seale JD, Vrana WA, Shetake J, Sudanagunta SP, Borland MS, Kilgard MP. 2011. Reversing pathological neural activity using targeted plasticity. Nature. 470:101-104). In this study, we predicted that repeatedly pairing VNS with a specific movement would result in an increased representation of that movement in primary motor cortex. To test this hypothesis, we paired VNS with movements of the distal or proximal forelimb in 2 groups of rats. After 5 days of VNS movement pairing, intracranial microstimulation was used to quantify the organization of primary motor cortex. Larger cortical areas were associated with movements paired with VNS. Rats receiving identical motor training without VNS pairing did not exhibit motor cortex map plasticity. These results suggest that pairing VNS with specific events may act as a general method for increasing cortical representations of those events. VNS movement pairing could provide a new approach for treating disorders associated with abnormal movement representations.

Responding to the real needs of women.

Science.gov (United States)

Arango, H

1994-01-01

INPPARES, the International Planned Parenthood Federation affiliate in Peru, has provided family planning and other services to the Peruvian population since 1976. The organization concentrates upon interventions targeted to women of low socioeconomic status. One of the group's most important strategies has been to distribute contraceptives at the community level in rural and peri-urban areas of the country through a network of centers managed by promoters. These promoters are virtually all female. The organization in 1993 supplied 812 distribution centers. Promoters and their supervisors have received training in contraception, basic data recording, community work, and related topics. INPPARES, however, suspected that the quality of the project would be improved if promoters and supervisors were trained about the role of women in the community and their rights and identity as women. The personnel would then be able to better understand the role of contraception and reproductive health in women's lives. To that end, INPPARES in 1992-93 developed a project in coordination with the Manuela Ramos Association, a Peruvian women's organization. A questionnaire was given to forty promoters on issues related to women's roles, values, attitudes, the place of women in society and the family, family planning, sexual relations, and decision making. Their responses pointed to a real need to provide promoters and supervisors with more information through workshops on women in Peruvian society, women's identity and roles, women's sexual rights, and the quality of care in service provision. Four pamphlets were drafted from a seminar of fifty supervisors from both organizations to be used in a series of twelve workshops for 256 promoters. Post-intervention evaluation of the original forty participants confirm the significant effectiveness of both subjects covered and materials used in achieving desired project goals. Four workshops were subsequently held in which project results

Evidence for preferences of Italian patients for physician attire

Directory of Open Access Journals (Sweden)

Sotgiu G

2012-04-01

Full Text Available Giovanni Sotgiu1, Paolo Nieddu2, Laura Mameli2, Enrico Sorrentino2, Pietro Pirina3, Alberto Porcu4, Stefano Madeddu1, Manuela Idini1, Maddalena Di Martino1, Giuseppe Delitala2, Ida Mura1, Maria Pina Dore21Epidemiology and Medical Statistics Unit, Department of Biomedical Sciences, 2Clinica Medica, 3Pneumologia, 4Chirurgia dell’Obesità, University of Sassari, Sassari, ItalyBackground: The relationship between patient and physician is a complex interaction that includes multiple factors. The objective of this study was to explore Italian patients’ preferences regarding physician appearance.Methods: A questionnaire was developed to survey patients in different medical and surgical settings; each subject was asked to choose one picture of either a male or female physician from a selection of different attires (professional, casual, surgical scrubs, trendy, and careless. Patients were also surveyed about issues such as the presence of a name tag, hair length, trousers on women, amount of makeup, presence of tattoos, and body piercing. Statistical analysis was performed using a Chi-square test.Results: A total of 765 questionnaires (534 completed from patients waiting for an internal medicine visit and 231 for other subspecialties were completed. The majority (45% of patients preferred the gastroenterologist to wear a surgical scrub with a white coat. For the other specialists, patients accepted either scrubs or formal dress under a white coat (P ≤ 0.05, with a name tag. Trendy attire was preferred by nine patients (1.1%. The entire sample judged it inappropriate for clinicians to have long hair, visible tattoos, body piercing, and, for women, to wear trousers and use excessive makeup.Conclusion: This is the first study conducted in Italy regarding physician attire. As in other Western countries, Italian patients favor physicians in professional attire with a white coat. Wearing professional dress is part of “etiquette based medicine” and

Toxicidade de produtos fitossanitários utilizados na cultura do pessegueiro sobre adultos de Trichogramma pretiosum Toxicity of pesticides used in peach orchard on adults Trichogramma pretiosum

Directory of Open Access Journals (Sweden)

Fabrizio Pinheiro Giolo

2007-01-01

Full Text Available A toxicidade de dezesseis formulações comerciais de produtos fitossanitários utilizados na cultura do pessegueiro foi avaliada para adultos de Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae. Os experimentos foram desenvolvidos utilizando-se a metodologia padrão da International Organization for Biological and Integrated Control of Noxious Animals and Plants, West Palaearctic Regional Section (IOBC/WPRS, em condições de laboratório, sob temperatura de 25 ± 1 ºC, umidade relativa de 70 ± 10% e fotofase de 14 horas. Os testes consistiram na exposição de adultos do parasitóide a resíduos secos dos produtos fitossanitários pulverizados sobre placas de vidro e mensuração do número de ovos parasitados por fêmea. Reduções no número de ovos parasitados por fêmea de T. pretiosum em relação à testemunha (somente água foram utilizadas para classificar os produtos segundo a IOBC/WPRS nas classes: 1, inócuo (99%. Os fungicidas (g ingrediente ativo 100 L-1 de água cálcio + cobre (40+100, dodina (79, folpete (125, iprodione (75, mancozebe (160, mancozebe + óxicloreto de cobre (88+60 e triforina (24 e o inseticida teflubenzurom (3,75 foram inócuos (classe 1; o fungicida tebuconazol (20 e óleo mineral (800 foram levemente nocivos (classe 2; o fungicida-acaricida enxofre (480 e o herbicida glufosinato de amônio (200 foram moderadamente nocivos (classe 3; os inseticidas espinosade (6, fenitrotiona (75, fosmete (100 e malationa (200 foram nocivos (classe 4 a T. pretiosum.The toxicity of sixteen commercial formulations of pesticides used in peach orchard was assessed on adults of Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae. The experiments were carried out using the International Organization for Biological and Integrated Control of Noxious Animals and Plants, West Palaearctic Regional Section (IOBC/WPRS standard methodology, under laboratory conditions at temperature of 25±1ºC, relative

Ação transovariana de lufenuron (50 g/l sobre adultos de Spodoptera Frugiperda (j. e. smith (Lepidoptera: Noctuidae e seu efeito sobre o parasitóide de ovos Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae Transovarian action of lufenuron on adults of Spodoptera frugiperda (J. E. Smith (Lepidoptera: Noctuidae and its effect on the parasitoid Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae

Directory of Open Access Journals (Sweden)

Dirceu Pratissoli

2004-02-01

Full Text Available Avaliaram-se a ação transovariana do lufenuron em Spodoptera frugiperda e sua seletividade ao parasitóide de ovos Trichogramma pretiosum. Casais da praga foram isolados em gaiolas de PVC e alimentados com solução de mel a 10% na testemunha, e nos outros tratamentos, foi adicionado à solução de mel o regulador de crescimento de insetos Match® CE nas proporções de 12,5; 15,0 e 17,5 g i.a/l. Para verificação da ação transovariana, diariamente foram coletadas as posturas, contado o número de ovos e, posteriormente, o número de larvas eclodidas. Quarenta ovos provenientes de cada tratamento foram colados em cartelas de papel (cartolina e expostos ao parasitismo, dentro de tubos de vidro de 1,0 x 3,5 cm, contendo uma fêmea de T. pretiosum no seu interior. Cartelas contendo 40 ovos de S. frugiperda foram imersas em soluções de lufenuron com a mesma concentração dos tratamentos anteriores e, posteriormente, expostas ao parasitismo por T. pretiosum. O lufenuron afetou consideravelmente a viabilidade dos ovos de S. frugiperda. Pelos resultados obtidos nos ensaios, relativos ao parasitóide, demonstram-se a seletividade do regulador de crescimento lufenuron e a possibilidade de sua utilização em programas de Manejo Integrado, juntamente com o parasitóide de ovos T. pretiosum.The transovarian action of insect growth regulator lufenuron in Spodoptera frugiperda (Lepidoptera: Noctuidae and its effects on the egg parasitoid Trichogramma pretiosum (Hymenoptera: Trichogrammatidae, were evaluated. Pest couples were isolated in PVC's cages and provided with 10% honey solution as control. In the others treatments, the honey solution was mixed with the insect growth regulator Match® CE using the following concentrations of 12.5; 15.0 and 17.5 g i.a./l. For verification of the transovarian action, the eggs were collected daily, with the number of the hatched larvae being subsequently counted. Forty eggs from each treatment were fixed in paper cards and exposed to parasitism, inside clean vials of 1.0 x 3.5 cm, containing one female of the parasitoid. Cards with forty host eggs were dipped in lufenuron solutions with the same concentrations of the previous experiment, and these exposed to parasitism. Lufenuron affected considerably the viability of the host eggs. The results, regarding to the parasitoid, showed the selectivity of this insecticide and the possibility of its utilization in programs of Integrated Pest Management, with T. pretiosum.

Representação social dos enfermeiros sobre cuidados paliativos

Directory of Open Access Journals (Sweden)

Sabrina Maria Coelho de Britto

2015-07-01

Full Text Available RESUMOIntrodução: O presente estudo refere-se a um processo de investigação sobre a representação social dos enfermeiros sobre cuidados paliativos. Objetivos: identificar a estrutura das representações sociais dos enfermeiros sobre cuidados paliativos; discutir as repercussões dessas representações no cotidiano da prática assistencial. Materiais e Métodos: Para a realização deste estudo foram abordados 70 enfermeiros que atuam nas enfermarias do serviço de Clínica Médica. A técnica para coleta de dados foi a da evocação livre. Para este estudo o termo indutor foi cuidado paliativo, e foi solicitada a associação de cinco palavras aos participantes do estudo. O material foi, então, tratado pelo software Ensemble de programmes permettant l’analyse dês evocations (EVOC. Resultados e Discussão: O sistema central é homogêneo, possui forte teor negativo e fornece estabilidade a representação. Por outro lado, a presença de elementos positivos no sistema periférico como carinho, conforto, dedicação e humanização reforçam o caráter flexível da representação. Cabe ressaltar que o provável núcleo central é pouco sensível ao contexto imediato, o que significa afirmar que, mesmo que o mais utópico dos setores de cuidados paliativos fosse inaugurado neste momento, o núcleo central da representação dos cuidados paliativos para enfermeiros não se modificaria imediatamente. Conclusões: Apesar dos cuidados paliativos e suas tecnologias estarem cada vez mais presentes no cotidiano hospitalar e, portanto, serem alvo de constantes debates em veículos de comunicação, a sua representação social, elaborada por este grupo de enfermeiros, permanece com forte teor negativo.  Cómo citar este artículo: Britto S, Ramos R, Santos É, Veloso O, Silva M, Silva A Mariz R. Representação social dos enfermeiros sobre cuidados paliativos. Rev Cuid. 2015; 6(2: 1062-9. http://dx.doi.org/10.15649/cuidarte.v6i2.170

Violencia intrafamiliar como causa de trastorno depresivo en mujeres que acuden al Centro de Apoyo Integral las tres Manuelas y al Hospital Cantonal de Sangolquí durante el año 2011

OpenAIRE

Moreno Ronquillo, Tania Paulina

2014-01-01

El Trastorno Depresivo ocupa el primer lugar dentro de las causas de discapacidad en el mundo. La Violencia Intrafamiliar es un grave problema de Salud Pública, pudiendo ser una causa importante de depresión. Objetivo. Determinar si la Violencia Intrafamiliar es causa del desarrollo de Trastorno Depresivo en mujeres que acuden al Centro de Equidad y Justicia “Las Tres Manuelas”. Diseño: Observacional, Epidemiológico Analítico Longitudinal de casos y controles. Lugar y sujetos. El presente est...

The occurrence of glyphosate, atrazine, and other pesticides in vernal pools and adjacent streams in Washington, DC, Maryland, Iowa, and Wyoming, 2005-2006

Science.gov (United States)

Battaglin, William A.; Rice, Karen C.; Focazio, Michael J.; Salmons, Sue; Barry, Robert X.

2009-01-01

Vernal pools are sensitive environments that provide critical habitat for many species, including amphibians. These small water bodies are not always protected by pesticide label requirements for no-spray buffer zones, and the occurrence of pesticides in them is poorly documented. In this study, we investigated the occurrence of glyphosate, its primary degradation product aminomethylphosphonic acid, and additional pesticides in vernal pools and adjacent flowing waters. Most sampling sites were chosen to be in areas where glyphosate was being used either in production agriculture or for nonindigenous plant control. The four site locations were in otherwise protected areas (e.g., in a National Park). When possible, water samples were collected both before and after glyphosate application in 2005 and 2006. Twenty-eight pesticides or pesticide degradation products were detected in the study, and as many as 11 were identified in individual samples. Atrazine was detected most frequently and concentrations exceeded the freshwater aquatic life standard of 1.8 micrograms per liter (μg/l) in samples from Rands Ditch and Browns Ditch in DeSoto National Wildlife Refuge. Glyphosate was measured at the highest concentration (328 μg/l) in a sample from Riley Spring Pond in Rock Creek National Park. This concentration exceeded the freshwater aquatic life standard for glyphosate of 65 μg/l. Aminomethylphosphonic acid, triclopyr, and nicosulfuron also were detected at concentrations greater than 3.0 μg/l.

El Quijote y Tiempo de silencio: reflejos recíprocos

Directory of Open Access Journals (Sweden)

Branka Kalenić Ramšak

2006-12-01

Full Text Available El Quijote sirvió como texto de referencia a muchísimas obras posteriores. Cervantes intuía en la Segunda parte de su novela que en realidad es una respuesta a la Primera parte y al Quijote apócrifo de Avellaneda, que su texto necesitaría comentario y que provocaría en la posterioridad diferentes y variadas interpretaciones. Don Quijote dice en el tercer capítulo de la Segunda parte: «Y así debe de ser de mi historia, que tendrá necesidad de comento para entenderla» (Cervantes, II: 571, aunque el bachiller Sansón Carrasco no se lo cree. Los cuatro siglos pasados han demostrado que Cervantes tenía razón: el ingenioso hidalgo de la Mancha y su compañero de viaje, el escudero Sancho, han entrado en el ámbito mitológico y arquetípico. Su historia se ha leído a lo largo de la historia de una y mil maneras. «Por consiguiente, como en un juego de luces y reflejos recíprocos, muchos aspectos del Quijote se descubren en innumerables novelas de los siglos XVII al XX, y viceversa» (Riley, 2004: 7. Entre estas novelas se encuentra también el texto clave de la posguerra española del siglo XX, Tiempo de silencio de Luis Martín-Santos.

Natural ventilation reduces high TB transmission risk in traditional homes in rural KwaZulu-Natal, South Africa.

Science.gov (United States)

Lygizos, Melissa; Shenoi, Sheela V; Brooks, Ralph P; Bhushan, Ambika; Brust, James C M; Zelterman, Daniel; Deng, Yanhong; Northrup, Veronika; Moll, Anthony P; Friedland, Gerald H

2013-07-01

Transmission of drug susceptible and drug resistant TB occurs in health care facilities, and community and households settings, particularly in highly prevalent TB and HIV areas. There is a paucity of data regarding factors that may affect TB transmission risk in household settings. We evaluated air exchange and the impact of natural ventilation on estimated TB transmission risk in traditional Zulu homes in rural South Africa. We utilized a carbon dioxide decay technique to measure ventilation in air changes per hour (ACH). We evaluated predominant home types to determine factors affecting ACH and used the Wells-Riley equation to estimate TB transmission risk. Two hundred eighteen ventilation measurements were taken in 24 traditional homes. All had low ventilation at baseline when windows were closed (mean ACH = 3, SD = 3.0), with estimated TB transmission risk of 55.4% over a ten hour period of exposure to an infectious TB patient. There was significant improvement with opening windows and door, reaching a mean ACH of 20 (SD = 13.1, p ventilation conditions (windows/doors open) and window to volume ratio. Expanding ventilation increased the odds of achieving ≥12 ACH by 60-fold. There is high estimated risk of TB transmission in traditional homes of infectious TB patients in rural South Africa. Improving natural ventilation may decrease household TB transmission risk and, combined with other strategies, may enhance TB control efforts.

Biological control of Indianmeal moth (Lepidoptera: Pyralidae) on finished stored products using egg and larval parasitoids.

Science.gov (United States)

Grieshop, Matthew J; Flinn, Paul W; Nechols, James R

2006-08-01

Biological control using hymenopteran parasitoids presents an attractive alternative to insecticides for reducing infestations and damage from the Indianmeal moth, Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae), in retail and warehouse environments. We examined the potential for using combinations of the egg parasitoid Trichogramma deion Riley (Hymenoptera: Trichogrammatidae), and the larval parasitoid Habrobracon hebetor (Say) (Hymenoptera: Braconidae) for preventing infestations of P. interpunctella in coarse-ground cornmeal as well as the influence of packaging on parasitoid effectiveness. Treatments included one or both parasitoids and either cornmeal infested with P. interpunctella eggs or eggs deposited on the surface of plastic bags containing cornmeal. H. hebetor had a significant impact on the number of live P. interpunctella, suppressing populations by approximately 71% in both unbagged and bagged cornmeal. In contrast, T. deion did not suppress P. interpunctella in unbagged cornmeal. However, when released on bagged cornmeal, T. deion significantly increased the level of pest suppression (87%) over bagging alone (15%). When H. hebetor was added to bagged cornmeal, there was a significant reduction of live P. interpunctella compared with the control (70.6%), with a further reduction observed when T. deion was added (96.7%). These findings suggest that, in most situations, a combined release of both T. deion and H. hebetor would have the greatest impact; because even though packaging may protect most of the stored products, there are usually areas in the storage landscape where poor sanitation is present.

Biology and thermal requirements to Trichogramma spp. selection for Ecdytolopha aurantiana control

International Nuclear Information System (INIS)

Molina, Rosa M.S.; Parra, Jose R.P.

2005-01-01

The purpose of this work was to evaluate the potential of Trichogramma atopovirilia Oatman and Platner, 1983 and T. pretiosum Riley, 1879 as agents of control of Ecdytolopha aurantiana (Lima, 1927) (Lepidoptera: Tortricidae), an important Citrus pest in Sao Paulo State (South-East Brazil). In order to provide subsidies to programs of biological control with these parasitoids, studies of biology in different temperatures, thermal requirements and parasitism capacity were carried out. The temperatures (18, 20, 22, 25, 28, 30, and 32 deg C) did not affect the sex ratio, however, female longevity of both species was higher at 22 and 25 deg C. The temperature of 25 deg C tended to be more suitable to both emergency rate and female longevity. The egg-adult period for both Trichogramma species was inversely proportional to temperature. The thermal requirements of the two species were very close, about 108 DD (degree days). Neither the natural rearing host, E. aurantiana, nor the alternative host Anagasta kuehniella (Zeller, 1879) (Lepidoptera, Pyralidae), affected the number of parasitized eggs per Trichogramma female. The parasitism rate and the number of emerged adults per egg on E. aurantiana eggs were higher than on A. kuehniella eggs. However, the emergency rate was higher when the parasitoids were reared on A. kuehniella eggs. Both Trichogramma species could be tested in the field for citrus fruit borer control. The thermal requirements and the parasitism capacity also could be good parameters for selection of Trichogramma species/strains. (author)

The Teles Pires volcanic province: A paleogeoproterozoic silicic-dominated large igneous province in southwest Amazon craton and tectonic implications

International Nuclear Information System (INIS)

Leite, Jayme Alfredo Dexheimer; Saes, Gerson Souza; Macambira, Moacir Jose Buenano

2001-01-01

Large Igneous Provinces (LIPs) are important features of the Earth history especially recognized during Paleo to Mezosoic times when they are related to the break up of supercontinents (Coffin and Eldhom, 1994). These provinces occur in several different tectonic settings such as volcanic passive margins, submarine ridges and continental and oceanic plateaux. Mafic-dominanted provinces are the most well known among the LIPs and the best examples are the Karoo, Kerguelem and Ontong-Java. LIPs including an important silicic component have been described in some basaltic provinces of southern Africa (Milner et al. 1992). More recently, silicic-dominated LIPs have been recognized in eastern Australia (Bryan et al., 2000), in southern South America (Pankhurst et al. 1998) and in Antartica Penninsula (Riley and Leat, 1999). The common characteristics of this kind of LIP include: 1) large volume of silicic rocks with dominance of ignimbrites, 2) active over 40 to 50 m.y.; and 3) spatially and temporally associated with plate break up. In this paper we present the main geologic and geochronologic characteristics of the Teles Pires volcanic province from southwest Amazon Craton, which allow its classification as a Paleoprotorozoic silicic-dominated LIP. Geologic implications of this suggestion includes the existence of a large cratonic plate as old as 1.81Ga for the Amazon Craton, therefore the proposed 1.85-1.55 Ga magmatic arc of Rio Negro-Juruena Province should be reviewed (au)

Biology and thermal requirements to Trichogramma spp. selection for Ecdytolopha aurantiana control; Selecao de Trichogramma spp., para o controle de Ecdytolopha aurantiana, com base na biologia e exigencias termicas

Energy Technology Data Exchange (ETDEWEB)

Molina, Rosa M.S.; Parra, Jose R.P. [Escola Superior de Agricultura Luiz de Queiroz (ESALQ/USP), Piracicaba, SP (Brazil). Dept. de Entomologia, Fitopatologia e Zoologia Agricola], e-mail: rmsmolina@ig.com.br, e-mail: jrpparra@esalq.usp.br; Fronza, Vanoli [Empresa de Pesquisa Agropecuaria de Minas Gerais (EPAMIG), Uberaba, MG (Brazil)], e-mail: vanoli@epamig.br

2005-03-15

The purpose of this work was to evaluate the potential of Trichogramma atopovirilia Oatman and Platner, 1983 and T. pretiosum Riley, 1879 as agents of control of Ecdytolopha aurantiana (Lima, 1927) (Lepidoptera: Tortricidae), an important Citrus pest in Sao Paulo State (South-East Brazil). In order to provide subsidies to programs of biological control with these parasitoids, studies of biology in different temperatures, thermal requirements and parasitism capacity were carried out. The temperatures (18, 20, 22, 25, 28, 30, and 32 deg C) did not affect the sex ratio, however, female longevity of both species was higher at 22 and 25 deg C. The temperature of 25 deg C tended to be more suitable to both emergency rate and female longevity. The egg-adult period for both Trichogramma species was inversely proportional to temperature. The thermal requirements of the two species were very close, about 108 DD (degree days). Neither the natural rearing host, E. aurantiana, nor the alternative host Anagasta kuehniella (Zeller, 1879) (Lepidoptera, Pyralidae), affected the number of parasitized eggs per Trichogramma female. The parasitism rate and the number of emerged adults per egg on E. aurantiana eggs were higher than on A. kuehniella eggs. However, the emergency rate was higher when the parasitoids were reared on A. kuehniella eggs. Both Trichogramma species could be tested in the field for citrus fruit borer control. The thermal requirements and the parasitism capacity also could be good parameters for selection of Trichogramma species/strains. (author)

PERANCANGAN PEMENUHAN PERMINTAAN PASOKAN GULA RAFINASI DENGAN METODE WAGNER WHITIN

Directory of Open Access Journals (Sweden)

Hendy Tannady

2013-09-01

Full Text Available Tidak bisa dipungkiri, setelah melewati tahapan dimana faktor Kualitas dan Kapabilitas Memproduksi Masal merupakan dimensi yang dianggap penting bagi industri dalam terus mempertahankan eksistensi dan mampu terus berkompetisi, kini kompetisi industri tengah memasuki era kompetisi dimana kapabilitas yang baik dalam Information Technology dan Supply Chain Management dipandang dapat menjadi bagian penting kompetensi pokok untuk terus bersaing. Penelitian ini membahas tentang perancangan pemenuhan permintaan terhadap permintaan gula rafinasi dari sebuah perusahaan yang berlokasi di Makassar, Sulawesi Selatan. Saat ini pemerintah memiliki kebijakan untuk membatasi jumlah perusahaan yang memiliki akses produksi dan menjual gula rafinasi, sedangkan pertumbuhan permintaan domestik terus tumbuh, mengantisipasi hal ini, diperlukan sebuah perencanaan terhadap strategi pemenuhan pesanan. Penelitian menggunakan metode Wagner Within dalam membantu perusahaan membuat rancangan persediaan. Tujuan jangka panjang adalah mencari metode terbaik yang dapat meringkas anggaran perusahaan tanpa mengesampingkan kepuasan customer. Menurut John dan Riley (1985 Supply Chain Management berhubungan dengan total aliran material dari supplier hingga customer akhir. Penelitian berfokus kepada aliran material dari Manufaktur kepada distributor dan manufaktur rekanan yang membutuhkan bahan baku untuk memproduksi produk lain. Data yang digunakan diambil menggunakan data riil sekunder, pengolahan data juga memasukkan variabel seperti biaya yang ditimbulkan akibat persediaan (Holding Cost dan set up cost. Hasil akhir penelitian adalah diperoleh data tabel perencanaan persediaan untuk periode permintaan 12 periode kedepan untuk pemenuhan permintaan di area Makassar dan Manado, untuk area Makassar pemenuhan persediaan dilakukan setiap periode permintaan, sedangkan untuk area Manado pemenuhan persediaan dilakukan pada periode 1 dan 3. Kata Kunci : supply chain management, wagner within

Processamento auditivo em gagos: análise do desempenho das orelhas direita e esquerda Auditory processing in stutterers: performance of right and left ears

Directory of Open Access Journals (Sweden)

Adriana Neves de Andrade

2008-03-01

Full Text Available OBJETIVO: Comparar a diferença entre as orelhas nos testes comportamentais do processamento auditivo e os resultados de sujeitos com diferentes graus de gravidade de gagueira em cada teste do processamento auditivo. MÉTODOS: Cinqüenta e seis indivíduos, com idades entre quatro e 34 anos, foram encaminhados pelo Ambulatório de Avaliação Fonoaudiológica da UNIFESP para avaliação comportamental do processamento auditivo. Todos os pacientes foram submetidos à avaliação de audição, fala e linguagem. A disfluência foi classificada segundo o protocolo de Riley (1994, o qual prevê os seguintes graus de gravidade da gagueira: muito leve, leve, moderado, severo e muito severo. Os testes para avaliação do processamento auditivo foram selecionados e analisados de acordo com a idade do paciente e a proposta de Pereira & Schochat (1997. RESULTADOS: Observamos prevalência da gagueira de grau leve nas faixas etárias de quatro a sete anos e de 12 a 34 anos de idade, e de grau moderado nos indivíduos de oito a 11 anos de idade. Dos 56 indivíduos avaliados 92,85% apresentaram alteração do processamento auditivo. Houve diferença estatisticamente significante entre as orelhas direita e esquerda na etapa de atenção direcionada do teste dicótico não verbal, em todas as faixas etárias estudadas. Não foram encontradas diferenças significativas entre os graus de gravidade da gagueira em nenhum dos testes de processamento auditivo. CONCLUSÕES: A orelha direita apresentou melhor desempenho do que a esquerda nos diferentes testes comportamentais. O grau de gravidade da gagueira não interferiu no resultado de cada teste.PURPOSE: To compare the difference between the performances of right and left ears in behavioral tests of auditory processing and to compare the results obtained by subjects with different stuttering severity classifications in each auditory processing test. METHODS: Fifty six subjects (49 male, 7 female, with ages ranging

Review: Manuela Boatca, Claudia Neudecker & Stefan Rinke (Eds. (2006. Des Fremden Freund, des Fremden Feind: Fremdverstehen in interdisziplinärer Perspektive [The Stranger's Friend, the Stranger's Enemy: Conceiving Foreignness in an Interdisciplinary Perspective

Directory of Open Access Journals (Sweden)

Claudia Brunner

2007-09-01

Full Text Available This book comprises the papers of a multidisciplinary workshop on the topic of foreignness/strangeness held at the Catholic University of Eichstätt, Germany, in July 2004. Seven authors try to critically question ways of conceiving foreignness instead of understanding or explaining it in the first place, doing so as a means of changing perspectives. The papers deal with the self-evidence of presumed Otherness and with aspects of constructing Otherness that appear to be strange indeed. A lengthy essay written by two of the editors rounds up the collection. The book is theoretically profound and politically ambitious, since both the workshop and the publication of its proceedings have an important aim: to develop an international and transcultural horizon of values for a common political and social agency based on multi- or interdisciplinary debates. The latter are conceived of as not only dealing with the objects of research, but with its subjects and with the multiple proceedings that lie behind the ways of getting to know the Other by constructing it. URN: urn:nbn:de:0114-fqs0703238

A Review of: "Organ, John F., Daniel J. Decker, Len H. Carpenter, William F. Siemer, and Shawn J. Riley. Thinking Like a Manager: Reflections on Wildlife Management."

Science.gov (United States)

Lee. K. Cerveny

2008-01-01

Thinking Like a Manager is a unique book that offers students and wildlife professionals a fresh format for considering a. complex array of themes associated with the contemporary wildlife management. The title refers to Aldo Leopold's classic essay, Thinking Like a Mountain, which promotes the integration of ecological and sociocultural processes in natural...

Health-Related Coping and Social Interaction in People with Multiple Sclerosis Supported by a Social Network: Pilot Study With a New Methodological Approach.

Science.gov (United States)

Lavorgna, Luigi; Russo, Antonio; De Stefano, Manuela; Lanzillo, Roberta; Esposito, Sabrina; Moshtari, Fatemeh; Rullani, Francesco; Piscopo, Kyrie; Buonanno, Daniela; Brescia Morra, Vincenzo; Gallo, Antonio; Tedeschi, Gioacchino; Bonavita, Simona

2017-07-14

.com was perceived by users to be a useful tool to support health-related coping and social interaction, and may suggest a new kind of therapeutic alliance between physicians and people with MS. ©Luigi Lavorgna, Antonio Russo, Manuela De Stefano, Roberta Lanzillo, Sabrina Esposito, Fatemeh Moshtari, Francesco Rullani, Kyrie Piscopo, Daniela Buonanno, Vincenzo Brescia Morra, Antonio Gallo, Gioacchino Tedeschi, Simona Bonavita. Originally published in the Interactive Journal of Medical Research (http://www.i-jmr.org/), 14.07.2017.

Preoperative risk factors in total thyroidectomy of substernal goiter

Directory of Open Access Journals (Sweden)

Bove A

2016-11-01

Full Text Available Aldo Bove, Raffaella Maria Di Renzo, Gauro D’Urbano, Manuela Bellobono, Vincenzo D’ Addetta, Alfonso Lapergola, Giuseppe Bongarzoni Department of Medicine, Dentistry and Biotechnology, University “G. d’Annunzio” Chieti-Pescara, Chieti Scalo, Italy Abstract: The definition of substernal goiter (SG is based on variable criteria leading to a considerable variation in the reported incidence (from 0.2% to 45%. The peri- and postoperative complications are higher in total thyroidectomy (TT for SG than that for cervical goiter. The aim of this study was to evaluate the preoperative risk factors associated with postoperative complications. From 2002 to 2014, 142 (8.5%; 98 women and 44 men of the 1690 patients who underwent TT had a SG. We retrospectively evaluated the following parameters: sex, age, histology, pre- and retrovascular position, recurrence, and extension beyond the carina. These parameters were then related to the postoperative complications: seroma/hematoma, transient and permanent hypocalcemia, transient and permanent laryngeal nerve palsy, and the length of surgery. The results were further compared with a control group of 120 patients operated on in the same period with TT for cervical goiter. All but two procedures were terminated via cervicotomy, where partial sternotomies were required. No perioperative mortality was observed. Results of the statistical analysis (Student’s t-test and Fisher’s exact test indicated an association between recurrence and extension beyond the carina with all postoperative complications. The group that underwent TT of SG showed a statistically significant higher risk for transient hypocalcemia (relative risk =1.767 with 95% confidence interval: 1.131–2.7605, P=0.0124, and need to treat =7.1 and a trend toward significance for transient recurrent laryngeal nerve palsy (relative risk =6.7806 with 95% confidence interval: 0.8577–53.2898, P=0.0696, and need to treat =20.8 compared to the

La investigación - acción en el contexto de la Educación Musical

Directory of Open Access Journals (Sweden)

Jimeno, María Manuela

2000-05-01

Full Text Available Investigación que propone un marco para adecuar, organizar, estructurar e interrelacionar los "Curriculum" de Escuelas de Música (3-12 años y Educación Musical en: Educación Infantil y Primaria (3-12 años, analizando convergencias y divergencias, fundamentando la música en su dualidad de Ciencia y Arte. Dicha investigación dirigida por Mª Manuela Jimeno, ha sido realizada con la participación de un equipo de profesores de Educación Infantil y Primaria así como de Escuelas de Música.La investigación que presentamos se está llevando a cabo en estos momentos en varios Centros de la Comunidad Foral de Navarra bajo el Patrocinio del Gobierno de Navarra, Departamento de Educación y Cultura. El planteamiento Teórico y Análisis de las propuestas se lleva a cabo en la Universidad Pública de Navarra, desde 1995 hasta la fecha.La finalidad de este proyecto pedagógico-musical es conseguir para los niños/as entre 3 y 12 años una cultura y formación musical equilibradas, el acercamiento más profundo al hecho musical, apostando por la unidad y convergencia de los "Currículos" como eje vertebrador, con la doble finalidad de servir de formación básica para unos, y como formación y preparación más específica, para aquellos otros que posean aptitudes para optar a las pruebas de grado medio de las Enseñanzas regladas de Música, o servir de fundamento para la apertura hacia otros itinerarios de expresión ARTÍSTICA.El planteamiento de la investigación que presentamos nos brinda la oportunidad de reflexionar y analizar sobre:Nuestra concepción del alumno/a. Nuestra concepción de Investigación Ecológica y la situación de la Investigación en la Acción. Las hipótesis de Trabajo. Como realizamos una sesión práctica. El Modelo creado que se sigue en la Investigación. Valoración de Datos y Conclusiones obtenidas hasta la fecha.

Preliminary study on the development of an antistretch marks water-in-oil cream: ultrasound assessment, texture analysis, and sensory analysis

Directory of Open Access Journals (Sweden)

Bogdan C

2016-09-01

Full Text Available Cătălina Bogdan,1 Mirela L Moldovan,1 Ioana Manuela Man,2 Maria Crișan,2 1Department of Dermopharmacy and Cosmetics, Faculty of Pharmacy, 2Department of Histology, Faculty of Medicine, University of Medicine and Pharmacy “Iuliu Hațieganu”, Cluj-Napoca, Romania Purpose: Striae distensae represent the result of the failure of the dermis to sustain intrinsic mechanical forces. Intensive moisturization of the lesions and use of emollient oils have been recommended for the prevention and treatment of striae distensae rubra. The aim of this research was to formulate an emollient water-in-oil cosmetic cream containing argan oil, which may be helpful in the prevention or early treatment of striae distensae. Patients and methods: Sensory evaluation of the consistency, firmness, adhesiveness, oiliness, spreadability, and rapidity of penetration into the skin was evaluated by 22 volunteers using 10-point scales for each descriptor. The instrumental characterization of the cream was performed using Brookfield® CT3 Texture Analyzer. The cutaneous changes induced by the topical use of the cream were evaluated by assessing the thickness of the epidermis, hydration, and elasticity of the skin using DermaLab® Combo scanner. Results: Ultrasound measurements showed an improvement in the elasticity of the epidermis following the application of cream. The product was well tolerated and appreciated by the consumers in terms of its spreadability, penetration ability, and lack of stickiness. The values recorded for texture analysis were firmness 10.16±0.15 mJ, adhesiveness 30.94±6.87 g, consistency 1229.50±119.78 g, spreadability 481.50±39 g, and stringiness 0.56±0.09 mJ. Conclusion: A water-in-oil cream containing argan oil and emollient ingredients with appropriate physical characteristics was obtained. In vivo study of clinical efficacy revealed a positive effect on increasing the skin elasticity, suggesting that the cream may be helpful in the

EDITORIAL: Invited papers from the 15th International Congress on Plasma Physics combined with the 13th Latin American Workshop on Plasma Physics Invited papers from the 15th International Congress on Plasma Physics combined with the 13th Latin American Workshop on Plasma Physics

Science.gov (United States)

Soto, Leopoldo

2011-07-01

attended by 44 participants and 7 lecturers from 11 different countries. All participants received financial assistance from the Local Organizing Committee. The topics covered by the School were: a general description of plasmas, space and astrophysical plasmas, plasma diagnostic techniques, high temperature and fusion plasmas, and low temperature and industrial plasmas. The organizers of ICPP-LAWPP-2010 are grateful to the lecturers of the LAWPP Plasma Physics School: Luis Felipe Delgado-Aparicio (USA), Homero Maciel (Brazil), and Marina Stepanova, J Alejandro Valdivia, Victor Muñoz, Felipe Veloso and Leopoldo Soto (Chile). On 27 February 2010, Chile suffered a major earthquake, one of the worst in the recorded history of the world up to that time. Although Santiago was little affected, the region located 200 km to the south was seriously damaged. After this event, the Local Organizing Committee received many messages from members of the plasma physics community around the world expressing their concern. The Local Organizing Committee greatly appreciates the support of the participants from all over the world who decided to come to Chile to attend the Conference. Their solidarity is highly appreciated. The Chairman of ICPP-LAWPP-2010 is grateful to the members of the Local Organizing Committee for the conference: Karla Cubillos, José Moreno, Cristian Pavez, Felipe Veloso, Marcelo Zambra, Luis Huerta and Fabian Reyes, and to the members of the Program Committee for their work and commitment. The Guest Editor of this special issue is grateful to the Publishers, in particular to Caroline Wilkinson, for their excellent work and cooperation.

Assessing the Total Mortality Caused by Two Species of Trichogramma on Its Natural Host Plutella xylostella (L.) at Different Temperatures.

Science.gov (United States)

Marchioro, C A; Krechemer, F S; Foerster, L A

2015-06-01

Trichogramma pretiosum Riley and Trichogramma atopovirilia Oatman & Platner are natural enemies of Plutella xylostella (L.) in Southern Brazil. Laboratory studies to evaluate parasitoids performance under different conditions, such as temperature regimes, are necessary to assess their potential as biocontrol agents of P. xylostella. In most studies involving Trichogramma, parasitism rate is the main parameter used to evaluate parasitoid performance, ignoring that parasitoids can cause egg mortality by feeding on the host content and/or to multiple drilling without laying eggs. This study was conducted to investigate three main issues: how temperature affects T. pretiosum and T.atopovirilia development on eggs of P. xylostella, whether or not these species respond differently to temperature, and how important is the mortality they cause besides parasitism on P. xylostella. Temperature effects (from 10 to 30°C) on development, survival, parasitism rate, mortality, and total mortality caused by T. pretiosum and T. atopovirilia on eggs of P. xylostella were evaluated. Temperature affected the development time, female longevity, parasitism rate, mortality not directly related to parasitoid larval development, and total mortality caused on the host. No significant differences were recorded for the estimated thermal requirements for T. pretiosum and T. atopovirilia. However, the higher mortality caused by T. pretiosum indicates that this parasitoid is the most suitable to be used against P. xylostella. Also, the results suggest that the use of parasitism rate as the only parameter to evaluate the performance of T. pretiosum and T. atopovirilia may underestimate the potential of these parasitoids in regulating pest populations.

The effect of B-site substitution on structural transformation and ionic conductivity in Ho2(ZryTi1−y)2O7

International Nuclear Information System (INIS)

Shafique, Muhammad; Kennedy, Brenden J.; Iqbal, Yaseen; Ubic, Rick

2016-01-01

Compounds in the pyrochlore system Ho 2 (Zr y Ti 1−y ) 2 O 7 exhibit an order-disorder transition from pyrochlore to a defect-fluorite type structure. Compositions in this system were prepared via mechanical milling, followed by a two-step sintering process. Structural characterization was carried out via Rietveld refinements using neutron powder diffraction data, supported by X-ray diffraction to determine the phase and location of the pyrochlore-fluorite transformation. Unit-cell parameters were determined for the whole series using Rietveld refinements as well as the Nelson–Riley function. The neutron refinement results confirmed that the cation disorder was independent of the anion Frenkel disorder. The relation between the x-parameter in the oxygen 48f position and anion Frenkel disorder was found to be linear for the pyrochlore structure. The ionic conductivity studies were undertaken via AC impedance analysis to determine the electronic behaviour and its relation to the structural change in the temperature range 300°C–700 °C. The trends in ionic conductivity and activation energy were explained structurally via neutron powder diffraction and X-ray diffraction data. The pyrochlore-fluorite boundary composition (at y = 0.5) exhibited the lowest activation energy and highest ionic conductivity. - Highlights: • Ho 2 (Zr y Ti 1-y ) 2 O 7 structure changed from ordered pyrochlore to defect-fluorite at y = 0.6. • Ho 2 (Zr 0.5 Ti 0.5 ) 2 O 7 exhibited high ionic conductivity and low activation energy. • Doping improved stability in ionic conductivity behaviour at lower temperature.

RAiSE II: resolved spectral evolution in radio AGN

Science.gov (United States)

Turner, Ross J.; Rogers, Jonathan G.; Shabala, Stanislav S.; Krause, Martin G. H.

2018-01-01

The active galactic nuclei (AGN) lobe radio luminosities modelled in hydrodynamical simulations and most analytical models do not address the redistribution of the electron energies due to adiabatic expansion, synchrotron radiation and inverse-Compton scattering of cosmic microwave background photons. We present a synchrotron emissivity model for resolved sources that includes a full treatment of the loss mechanisms spatially across the lobe, and apply it to a dynamical radio source model with known pressure and volume expansion rates. The bulk flow and dispersion of discrete electron packets is represented by tracer fields in hydrodynamical simulations; we show that the mixing of different aged electrons strongly affects the spectrum at each point of the radio map in high-powered Fanaroff & Riley type II (FR-II) sources. The inclusion of this mixing leads to a factor of a few discrepancy between the spectral age measured using impulsive injection models (e.g. JP model) and the dynamical age. The observable properties of radio sources are predicted to be strongly frequency dependent: FR-II lobes are expected to appear more elongated at higher frequencies, while jetted FR-I sources appear less extended. The emerging FR0 class of radio sources, comprising gigahertz peaked and compact steep spectrum sources, can potentially be explained by a population of low-powered FR-Is. The extended emission from such sources is shown to be undetectable for objects within a few orders of magnitude of the survey detection limit and to not contribute to the curvature of the radio spectral energy distribution.

Classifying Radio Galaxies with the Convolutional Neural Network

Energy Technology Data Exchange (ETDEWEB)

Aniyan, A. K.; Thorat, K. [Department of Physics and Electronics, Rhodes University, Grahamstown (South Africa)

2017-06-01

We present the application of a deep machine learning technique to classify radio images of extended sources on a morphological basis using convolutional neural networks (CNN). In this study, we have taken the case of the Fanaroff–Riley (FR) class of radio galaxies as well as radio galaxies with bent-tailed morphology. We have used archival data from the Very Large Array (VLA)—Faint Images of the Radio Sky at Twenty Centimeters survey and existing visually classified samples available in the literature to train a neural network for morphological classification of these categories of radio sources. Our training sample size for each of these categories is ∼200 sources, which has been augmented by rotated versions of the same. Our study shows that CNNs can classify images of the FRI and FRII and bent-tailed radio galaxies with high accuracy (maximum precision at 95%) using well-defined samples and a “fusion classifier,” which combines the results of binary classifications, while allowing for a mechanism to find sources with unusual morphologies. The individual precision is highest for bent-tailed radio galaxies at 95% and is 91% and 75% for the FRI and FRII classes, respectively, whereas the recall is highest for FRI and FRIIs at 91% each, while the bent-tailed class has a recall of 79%. These results show that our results are comparable to that of manual classification, while being much faster. Finally, we discuss the computational and data-related challenges associated with the morphological classification of radio galaxies with CNNs.

XFEL resonant photo-pumping of dense plasmas and dynamic evolution of autoionizing core hole states

Science.gov (United States)

Rosmej, F. B.; Moinard, A.; Renner, O.; Galtier, E.; Lee, J. J.; Nagler, B.; Heimann, P. A.; Schlotter, W.; Turner, J. J.; Lee, R. W.; Makita, M.; Riley, D.; Seely, J.

2016-03-01

Similarly to the case of LIF (Laser-Induced Fluorescence), an equally revolutionary impact to science is expected from resonant X-ray photo-pumping. It will particularly contribute to a progress in high energy density science: pumped core hole states create X-ray transitions that can escape dense matter on a 10 fs-time scale without essential photoabsorption, thus providing a unique possibility to study matter under extreme conditions. In the first proof of principle experiment at the X-ray Free Electron Laser LCLS at SCLAC [Seely, J., Rosmej, F.B., Shepherd, R., Riley, D., Lee, R.W. Proposal to Perform the 1st High Energy Density Plasma Spectroscopic Pump/Probe Experiment”, approved LCLS proposal L332 (2010)] we have successfully pumped inner-shell X-ray transitions in dense plasmas. The plasma was generated with a YAG laser irradiating solid Al and Mg targets attached to a rotating cylinder. In parallel to the optical laser beam, the XFEL was focused into the plasma plume at different delay times and pump energies. Pumped X-ray transitions have been observed with a spherically bent crystal spectrometer coupled to a Princeton CCD. By using this experimental configuration, we have simultaneously achieved extremely high spectral (λ/δλ ≈ 5000) and spatial resolution (δx≈70 μm) while maintaining high luminosity and a large spectral range covered (6.90 - 8.35 Å). By precisely measuring the variations in spectra emitted from plasma under action of XFEL radiation, we have successfully demonstrated transient X- ray pumping in a dense plasma.

Particle content, radio-galaxy morphology, and jet power: all radio-loud AGN are not equal

Science.gov (United States)

Croston, J. H.; Ineson, J.; Hardcastle, M. J.

2018-05-01

Ongoing and future radio surveys aim to trace the evolution of black hole growth and feedback from active galactic nuclei (AGNs) throughout cosmic time; however, there remain major uncertainties in translating radio luminosity functions into a reliable assessment of the energy input as a function of galaxy and/or dark matter halo mass. A crucial and long-standing problem is the composition of the radio-lobe plasma that traces AGN jet activity. In this paper, we carry out a systematic comparison of the plasma conditions in Fanaroff & Riley class I and II radio galaxies to demonstrate conclusively that their internal composition is systematically different. This difference is best explained by the presence of an energetically dominant proton population in the FRI, but not the FRII radio galaxies. We show that, as expected from this systematic difference in particle content, radio morphology also affects the jet-power/radio-luminosity relationship, with FRII radio galaxies having a significantly lower ratio of jet power to radio luminosity than the FRI cluster radio sources used to derive jet-power scaling relations via X-ray cavity measurements. Finally, we also demonstrate conclusively that lobe composition is unconnected to accretion mode (optical excitation class): the internal conditions of low- and high-excitation FRII radio lobes are indistinguishable. We conclude that inferences of population-wide AGN impact require careful assessment of the contribution of different jet subclasses, particularly given the increased diversity of jet evolutionary states expected to be present in deep, low-frequency radio surveys such as the LOFAR Two-Metre Sky Survey.

"COCHLEAR IMPLANTATION IN PATIENTS WITH INNER EAR MALFORMATIONS"

Directory of Open Access Journals (Sweden)

P. Borghei S. Abdi

2004-08-01

Full Text Available Performing cochlear implantation in patients with inner ear malformation has always been a matter of dispute. This study was designed to analyze the operative findings,complications, and postoperative performance of patients with inner ear anomalies who underwent cochlear implantation. Six patients with inner ear malformations underwent implantation in our academic tertiary referral center from 1997 to 2002. The average follow-up period was 27 months. Malformations included one incomplete partition, one common cavity, one narrow internal acoustic canal (IAC in a patient with Riley-Day syndrome and 3 cases of large vestibular aqueduct. All received multi-channel implants either Nucleus 22 or Clarion device. Facial nerve was anomalous in 2 cases. CSF gusher occurred in 4 patients, which was controlled with packing the cochleostomy site. In all cases, the full length of electrode array was inserted, except one with Mondini's dysplasia where insertion failed in the first operation and was referred to another center for a successful surgery on the opposite ear. No other surgical complications were encountered. In 4 cases, all the 22 electrodes could be activated. All patients showed improved hearing performance after implantation. Four showed open-set speech recognition. The one with narrow IAC showed improved awareness to environmental sounds. In the other case (common cavity, the perception tests could not be performed because of very young age. Cochlear implantation in patients with inner ear malformations is a successful way of rehabilitation, although complications should be expected and auditory responses may be highly variable and relatively moderate.

Transferring alien genes to wheat

International Nuclear Information System (INIS)

Knott, D.R.

1987-01-01

In broad terms an alien gene can be considered to be any gene transferred to wheat from a related species. As described above by Maan (section 7D) the genus Triticum contains a broad range of species, some of which cross readily with the cultivated tetraploid (T. Turgidum L.) or hexaploid (T. aestivum L.) wheats, and others only with great difficulty. In addition, wheat will also cross with species in a number of other genera including Agropyron, Elymus, Elytrigia (=Agropyron), Haynaldia, Hordeum, and Secale (Riley and Kimber, 1966; Knobloch, 1968; Feldman and Sears, 1981). In discussing the Triticum and Aegilops spp., the classification by Kimber and Sears, section SA-I, above, will be followed. For the Agropyron and related species the classification described by Dewey (1983) will be used. To avoid confusion, in referring to the literature the designations used by the authors will be given, followed by the new designation. The wild relatives of wheat are adapted to a broad range of environments and carry a large reservoir of useful genes (Zohary et al., 1969; Kerber and Dyck, 1973; Brezhnev, 1977; Feldman and Sears, 1981; Limin and Fowler, 1981; Sharma et aI., 1981; McGuire and Dvorak, 1981). Initially they were considered to be primarily sources of disease resistance, but more recently they have been recognized as potential sources of genes for high protein, cold tolerance, salt tolerance, drought tolerance, lodging resistance, early maturity, and even yield. Extensive screening of the wild relatives of wheat needs to be done before their useful genes can be fully utilized

Transferring alien genes to wheat

Energy Technology Data Exchange (ETDEWEB)

Knott, D. R.

1987-07-01

In broad terms an alien gene can be considered to be any gene transferred to wheat from a related species. As described above by Maan (section 7D) the genus Triticum contains a broad range of species, some of which cross readily with the cultivated tetraploid (T. Turgidum L.) or hexaploid (T. aestivum L.) wheats, and others only with great difficulty. In addition, wheat will also cross with species in a number of other genera including Agropyron, Elymus, Elytrigia (=Agropyron), Haynaldia, Hordeum, and Secale (Riley and Kimber, 1966; Knobloch, 1968; Feldman and Sears, 1981). In discussing the Triticum and Aegilops spp., the classification by Kimber and Sears, section SA-I, above, will be followed. For the Agropyron and related species the classification described by Dewey (1983) will be used. To avoid confusion, in referring to the literature the designations used by the authors will be given, followed by the new designation. The wild relatives of wheat are adapted to a broad range of environments and carry a large reservoir of useful genes (Zohary et al., 1969; Kerber and Dyck, 1973; Brezhnev, 1977; Feldman and Sears, 1981; Limin and Fowler, 1981; Sharma et aI., 1981; McGuire and Dvorak, 1981). Initially they were considered to be primarily sources of disease resistance, but more recently they have been recognized as potential sources of genes for high protein, cold tolerance, salt tolerance, drought tolerance, lodging resistance, early maturity, and even yield. Extensive screening of the wild relatives of wheat needs to be done before their useful genes can be fully utilized.

Classifying Radio Galaxies with the Convolutional Neural Network

Science.gov (United States)

Aniyan, A. K.; Thorat, K.

2017-06-01

We present the application of a deep machine learning technique to classify radio images of extended sources on a morphological basis using convolutional neural networks (CNN). In this study, we have taken the case of the Fanaroff-Riley (FR) class of radio galaxies as well as radio galaxies with bent-tailed morphology. We have used archival data from the Very Large Array (VLA)—Faint Images of the Radio Sky at Twenty Centimeters survey and existing visually classified samples available in the literature to train a neural network for morphological classification of these categories of radio sources. Our training sample size for each of these categories is ˜200 sources, which has been augmented by rotated versions of the same. Our study shows that CNNs can classify images of the FRI and FRII and bent-tailed radio galaxies with high accuracy (maximum precision at 95%) using well-defined samples and a “fusion classifier,” which combines the results of binary classifications, while allowing for a mechanism to find sources with unusual morphologies. The individual precision is highest for bent-tailed radio galaxies at 95% and is 91% and 75% for the FRI and FRII classes, respectively, whereas the recall is highest for FRI and FRIIs at 91% each, while the bent-tailed class has a recall of 79%. These results show that our results are comparable to that of manual classification, while being much faster. Finally, we discuss the computational and data-related challenges associated with the morphological classification of radio galaxies with CNNs.

Investigation clogging dynamic of permeable pavement systems using embedded sensors

Science.gov (United States)

Razzaghmanesh, Mostafa; Borst, Michael

2018-02-01

Permeable pavement is a stormwater control measure commonly selected in both new and retrofit applications. However, there is limited information about the clogging mechanism of these systems that effects the infiltration. A permeable pavement site located at the Seitz Elementary School, on Fort Riley, Kansas was selected for this study. An 80-space parking lot was built behind the school as part of an EPA collaboration with the U.S. Army. The parking lot design includes a permeable interlocking concrete pavement section along the downgradient edge. This study monitored the clogging progress of the pavement section using twelve water content reflectometers and three buried tipping bucket rain gauges. This clogging dynamic investigation was divided into three stages namely pre-clogged, transitional, and clogged. Recorded initial relative water content of all three stages were significantly and negatively correlated to antecedent dry weather periods with stronger correlations during clogged conditions. The peak relative water content correlation with peak rainfall 10-min intensity was significant for the water content reflectometers located on the western edge away from the eastern edge; this correlation was strongest during transition stage. Once clogged, rainfall measurements no longer correlated with the buried tipping bucket rain gauges. Both water content reflectometers and buried tipping bucket rain gauges showed the progress of surface clogging. For every 6 mm of rain, clogging advanced 1 mm across the surface. The results generally support the hypothesis that the clogging progresses from the upgradient to the downgradient edge. The magnitude of the contributing drainage area and rainfall characteristics are effective factors on rate and progression of clogging.

Classifying Radio Galaxies with the Convolutional Neural Network

International Nuclear Information System (INIS)

Aniyan, A. K.; Thorat, K.

2017-01-01

We present the application of a deep machine learning technique to classify radio images of extended sources on a morphological basis using convolutional neural networks (CNN). In this study, we have taken the case of the Fanaroff–Riley (FR) class of radio galaxies as well as radio galaxies with bent-tailed morphology. We have used archival data from the Very Large Array (VLA)—Faint Images of the Radio Sky at Twenty Centimeters survey and existing visually classified samples available in the literature to train a neural network for morphological classification of these categories of radio sources. Our training sample size for each of these categories is ∼200 sources, which has been augmented by rotated versions of the same. Our study shows that CNNs can classify images of the FRI and FRII and bent-tailed radio galaxies with high accuracy (maximum precision at 95%) using well-defined samples and a “fusion classifier,” which combines the results of binary classifications, while allowing for a mechanism to find sources with unusual morphologies. The individual precision is highest for bent-tailed radio galaxies at 95% and is 91% and 75% for the FRI and FRII classes, respectively, whereas the recall is highest for FRI and FRIIs at 91% each, while the bent-tailed class has a recall of 79%. These results show that our results are comparable to that of manual classification, while being much faster. Finally, we discuss the computational and data-related challenges associated with the morphological classification of radio galaxies with CNNs.

A survey of hymenopteran parasitoids of forest macrolepidoptera in the central Appalachians.

Science.gov (United States)

Petrice, T R; Strazanac, J S; Butler, L

2004-04-01

In 1995 and 1996, we conducted a study of the hymenopteran parasitoids of macrolepidopteran larvae in the George Washington National Forest (GWNF), Augusta County, Virginia, and the Monongahela National Forest (MNF), Pocahontas County, West Virginia. Macrolepidopteran larvae were collected from canopy foliage and from under canvas bands placed around tree boles. A total of 115 macrolepidopteran species and 5,235 individual larvae were reared. Forty-two percent (2,221) of the larvae were gypsy moth, Lymantria dispar (L.) (Lymantriidae). A total of 43 primary and secondary (hyperparasitoid) hymenopteran parasitoid species were reared from 46 macrolepidopteran species. Hymenopteran families represented included Ichneumonidae (23 species), Braconidae (19), Eulophidae (6), Perilampidae (1), and Trigonalidae (1). We reared 41 and 28 parasitoid species from the GWNF and the MNF, respectively, with 19 species reared from both forests. Many parasitoid species were collected infrequently, suggesting that they are relatively rare on the sampled hosts. The introduced species Cotesia melanoscela (Ratzeburg) (Braconidae), and Euplectrus bicolor (Swederus) (Eulophidae) were among the most commonly reared parasitoids, the latter reared from native hosts. The four most commonly reared native parasitoids were Meteorus hyphantriae, Riley (Braconidae), Microplitis near hyphantriae (Ashmead) (Braconidae), Aleiodes preclarus Marsh & Shaw, and Euplectrus maculiventris (Westwood) (Eulophidae). A total of 53 new hymenopteran parasitoid-macrolepidopteran host records were documented. Results from this study will be used to evaluate long-term treatment effects of regional applications of Bacillus thuringiensis kurstaki, and the gypsy moth fungus Entomophaga maimaiga Humber, Shimazu & Soper on hymenopteran parasitoids of macrolepidopteran larvae.

Hereditary sensory and autonomic neuropathies: types II, III, and IV

Directory of Open Access Journals (Sweden)

Axelrod Felicia B

2007-10-01

Full Text Available Abstract The hereditary sensory and autonomic neuropathies (HSAN encompass a number of inherited disorders that are associated with sensory dysfunction (depressed reflexes, altered pain and temperature perception and varying degrees of autonomic dysfunction (gastroesophageal reflux, postural hypotention, excessive sweating. Subsequent to the numerical classification of four distinct forms of HSAN that was proposed by Dyck and Ohta, additional entities continue to be described, so that identification and classification are ongoing. As a group, the HSAN are rare diseases that affect both sexes. HSAN III is almost exclusive to individuals of Eastern European Jewish extraction, with incidence of 1 per 3600 live births. Several hundred cases with HSAN IV have been reported. The worldwide prevalence of HSAN type II is very low. This review focuses on the description of three of the disorders, HSAN II through IV, that are characterized by autosomal recessive inheritance and onset at birth. These three forms of HSAN have been the most intensively studied, especially familial dysautonomia (Riley-Day syndrome or HSAN III, which is often used as a prototype for comparison to the other HSAN. Each HSAN disorder is likely caused by different genetic errors that affect specific aspects of small fiber neurodevelopment, which result in variable phenotypic expression. As genetic tests are routinely used for diagnostic confirmation of HSAN III only, other means of differentiating between the disorders is necessary. Diagnosis is based on the clinical features, the degree of both sensory and autonomic dysfunction, and biochemical evaluations, with pathologic examinations serving to further confirm differences. Treatments for all these disorders are supportive.

Multiwavelength study of Cygnus A. V. The hotspots in the lobe

Science.gov (United States)

Pyrzas, S.; Steenbrugge, K. C.; Blundell, K. M.

2015-02-01

Context. The jets in Faranoff-Riley type II AGN are supposed come to an abrupt halt in hotspots on opposite sides of the nucleus. Quite commonly, two hotspots are observed in each lobe. The origin of the second hotspot is currently poorly understood. Aims: Our aims are to determine the origin of the secondary hotspot in the western lobe of Cygnus A from high resolution multifrequency radio images; to determine the minimum Lorentz factor of the electrons in the hotspots, often referred to as the low-energy turnover; and to study the magnetic field configuration of the hotspots. Methods: We used 151 MHz Merlin and 327 MHz, 1.4, 5, 8, 15, and 43 GHz VLA images to determine the centroid of the peak luminosity, the spectral shape, and polarization fraction of both hotspots in the western lobe of Cygnus A. Results: We find a spatial shift in peak luminosity between the lower and higher frequency images for both hotspots. We determine the minimum Lorentz factor of the electrons to be ~1000, and show that most of the emission from the primary hotspot is linearly polarized. The minimum energy magnetic field strength is found to range between ~0.14 and ~0.5 mG in both the primary and secondary hotspots. Conclusions: From the low polarization and the determined outflow velocity, we conclude that the secondary hotspot is no longer a strong shock, and is an expanding, and hence a fading hotspot. This hotspot has an age that is of the same order of magnitude as the jet precession period.

Angle alignment evokes perceived depth and illusory surfaces.

Science.gov (United States)

Shapley, Robert; Maertens, Marianne

2008-01-01

There is a distinct visual process that triggers the perception of illusory surfaces and contours along the intersections of aligned, zigzag line patterns. Such illusory contours and surfaces are qualitatively different from illusory contours of the Kanizsa type. The illusory contours and surfaces in this case are not the product of occlusion and do not imply occlusion of one surface by another. Rather, the aligned angles in the patterns are combined by the visual system into the perception of a fold or a 3-D corner, as of stairs on a staircase or a wall ending on a floor. The depth impression is ambiguous and reversible like the Necker cube. Such patterns were used by American Indian artists of the Akimel O'odham (Pima) tribe in basketry, and also by modern European and American artists like Josef Albers, Bridget Riley, Victor Vasarely, and Frank Stella. Our research aims to find out what manipulations of the visual image affect perceived depth in such patterns in order to learn about the perceptual mechanisms. Using paired comparisons, we find that human observers perceive depth in such patterns if, and only if, lines in adjacent regions of the patterns join to form angles, and also if, and only if, the angles are aligned precisely to be consistent with a fold or 3-D corner. The amount of perceived depth is graded, depending on the steepness and the density of angles in the aligned-angle pattern. The required precision of the alignment implies that early retinotopic visual cortical areas may be involved in this perceptual behavior, but the linkage of form with perceived depth suggests involvement of higher cortical areas as well.

Manager's Discretionary Power and Comparability of Financial Reports: An Analysis of the Regulatory Transition Process in Brazilian Accounting

Directory of Open Access Journals (Sweden)

Alex Mussoi Ribeiro

2016-04-01

Full Text Available This research aimed to directly evaluate the impact of the accounting regulatory flexibility movement on the comparability of financial reports. The country chosen for the analysis was Brazil, because it was one of the few countries in the world where a process of regulatory change from a completely rule-based standard with a strong link to tax accounting (Lopes, 2011 to a principle-based standard with greater need for decision by managers who prepare the financial reports took place. To measure comparability, the accounting function similarity model developed by DeFranco, Kothari and Verdi (2011 was used. The companies analyzed were all listed ones with full data for the period concerned having, at least, a pair company within the same economic activity sector. To obtain the research results, we adopted a panel data model where the years 2005 to 2012 were compared to the year 2004. The results obtained prove that, on average, there was no significant decrease in the comparability level within country during the regulatory transition period in Brazil. On the contrary, there was an increase in genuine comparability in the year 2012 when compared to 2004. In the model adjusted by stepwise, the years 2011 and 2012 had a significantly higher average comparability when compared to 2004. The results found corroborate other researches addressing the quality of accounting information (Collins, Pasewark, & Riley, 2012; Psaros & Trotman, 2004; Agoglia, Doupnik, & Tsakumis, 2011 and prove the superiority of the principle-based standard also over the comparability of financial reports. The main conclusion of this research is that increasing manager's discretionary power through flexibility of accounting standards does not decrease the comparability of financial reports.

Recycling of high purity selenium from CIGS solar cell waste materials

Energy Technology Data Exchange (ETDEWEB)

Gustafsson, Anna M.K., E-mail: anna.gustafsson@chalmers.se; Foreman, Mark R.StJ.; Ekberg, Christian

2014-10-15

Highlights: • A new method for recycling of selenium from CIGS solar cell materials is presented. • Separation of selenium as selenium dioxide after heating in oxygen atmosphere. • Complete selenium separation after oxidation of <63 μm particles at 800 °C for 1 h. • After reduction of selenium dioxide the selenium purity was higher than 99.999 wt%. - Abstract: Copper indium gallium diselenide (CIGS) is a promising material in thin film solar cell production. To make CIGS solar cells more competitive, both economically and environmentally, in comparison to other energy sources, methods for recycling are needed. In addition to the generally high price of the material, significant amounts of the metals are lost in the manufacturing process. The feasibility of recycling selenium from CIGS through oxidation at elevated temperatures was therefore examined. During oxidation gaseous selenium dioxide was formed and could be separated from the other elements, which remained in solid state. Upon cooling, the selenium dioxide sublimes and can be collected as crystals. After oxidation for 1 h at 800 °C all of the selenium was separated from the CIGS material. Two different reduction methods for reduction of the selenium dioxide to selenium were tested. In the first reduction method an organic molecule was used as the reducing agent in a Riley reaction. In the second reduction method sulphur dioxide gas was used. Both methods resulted in high purity selenium. This proves that the studied selenium separation method could be the first step in a recycling process aimed at the complete separation and recovery of high purity elements from CIGS.

A MULTIWAVELENGTH STUDY OF THREE HYBRID BLAZARS

Energy Technology Data Exchange (ETDEWEB)

Stanley, E. C.; Lister, M. L. [Department of Physics and Astronomy, Purdue University, 525 Northwestern Avenue, West Lafayette, IN 47907 (United States); Kharb, P. [Indian Institute of Astrophysics, II Block, Koramangala, Bangalore 560034 (India); Marshall, H. L. [Center for Space Research, Room NE80-6031, Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); O’Dea, C.; Baum, S. [Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2 (Canada)

2015-07-01

We present multiwavelength imaging observations of PKS 1045−188, 8C 1849+670, and PKS 2216−038, three radio-loud active galactic nuclei from the MOJAVE-Chandra Sample that straddle the Fanaroff-Riley (FR) boundary between low- and high-power jets. These hybrid sources provide an excellent opportunity to study jet emission mechanisms and the influence of the external environment. We used archival VLA observations, and new Hubble and Chandra observations to identify and study the spectral properties of five knots in PKS 1045−188, two knots in 8C 1849+670, and three knots in PKS 2216−038. For the seven X-ray visible knots, we constructed and fit the broadband spectra using synchrotron and inverse Compton/cosmic microwave background (IC/CMB) emission models. In all cases, we found that the lack of detected optical emission ruled out the X-ray emission from the same electron population that produces radio emission. All three sources have high total extended radio power, similar to that of FR II sources. We find this is in good agreement with previously studied hybrid sources, where high-power hybrid sources emit X-rays via IC/CMB and the low-power hybrid sources emit X-rays via synchrotron emission. This supports the idea that it is total radio power rather than FR morphology that determines the X-ray emission mechanism. We found no significant asymmetries in the diffuse X-ray emission surrounding the host galaxies. Sources PKS 1045−188 and 8C 1849+670 show significant differences in their radio and X-ray termination points, which may result from the deceleration of highly relativistic bulk motion.

DYNAMICS INSIDE THE RADIO AND X-RAY CLUSTER CAVITIES OF CYGNUS A AND SIMILAR FRII SOURCES

International Nuclear Information System (INIS)

Mathews, William G.; Guo Fulai

2012-01-01

We describe approximate axisymmetric computations of the dynamical evolution of material inside radio lobes and X-ray cluster gas cavities in Fanaroff-Riley II (FRII) sources such as Cygnus A. All energy is delivered by a jet to the lobe/cavity via a moving hotspot where jet energy dissipates in a reverse shock. Our calculations describe the evolution of hot plasma, cosmic rays (CRs), and toroidal magnetic fields flowing from the hotspot into the cavity. Many important observational features are explained. Gas, CRs, and field flow back along the cavity surface in a 'boundary backflow' consistent with detailed FRII observations. Computed ages of backflowing CRs are consistent with observed radio-synchrotron age variations only if shear instabilities in the boundary backflow are damped and we assume this is done with viscosity of unknown origin. We compute a faint thermal jet along the symmetry axis and suggest that it is responsible for redirecting the Cygnus A nonthermal jet. Magnetic fields estimated from synchrotron self-Compton (SSC) X-radiation observed near the hotspot evolve into radio lobe fields. Computed profiles of radio-synchrotron lobe emission perpendicular to the jet reveal dramatically limb-brightened emission in excellent agreement with FRII observation, although computed lobe fields exceed those observed. Strong winds flowing from hotspots naturally create kiloparsec-sized spatial offsets between hotspot nonthermal X-ray inverse Compton (IC-CMB) emission and radio-synchrotron emission that peaks 1-2 kpc ahead where the field increases due to wind compression. In our computed version of Cygnus A, nonthermal X-ray emission increases from the hotspot (some IC-CMB, mostly SSC) toward the offset radio-synchrotron peak (mostly SSC).

Toxicity of some insecticides used in maize crop on Trichogramma pretiosum (Hymenoptera, Trichogrammatidae immature stages

Directory of Open Access Journals (Sweden)

Jander R Souza

2014-04-01

Full Text Available Fall armyworm Spodoptera frugiperda (J.E. Smith, 1797 (Lepidoptera: Noctuidae is an important pest of maize (Zea mays L. crops in Brazil. The effects of beta-cypermethrin, chlorfenapyr, chlorpyrifos, spinosad, etofenprox, triflumuron, alpha-cypermethrin/teflubenzuron, and lambda-cyhalothrin/thiamethoxam on Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae immature stages were evaluated. Eggs of Anagasta kuehniella (Zeller, 1879 (Lepidoptera: Pyralidae, containing immature stages of the parasitoid were dipped in water solution pesticides, to evaluate their effects on emergence and sex ratio of F1 parasitoids. For F2 parasitoids, emergence, parasitism capacity, and sex ratio were evaluated. Beta-cypermethrin, chlorfenapyr, chlorpyrifos, and spinosad affected the emergence success of F1 T. pretiosum. Insects exposed to etofenprox and alpha-cypermethrin/teflubenzuron during the egg-larval period and to lambda-cyhalothrin/thiamethoxam during the pupal stage also suffered reduction in the emergence. Beta-cypermethrin affected the sex ratio of F1 T. pretiosum from host eggs treated during the egg-larval period; spinosad affected it during the egg-larval period and the pupal stage, whereas chlorpyrifos did the same when applied during the pupal stage. Chlorpyrifos also affected the sex ratio of F2 parasitoids, but only when applied during the egg-larval period, whereas chlorfenapyr reduced this trait when applied during the pre-pupal phase. Chlorpyrifos and alpha-cypermethrin/teflubenzuron affected the parasitism capacity of F1 females from eggs treated during the egg-larval period. Considering the overall effects, only etofenprox and triflumuron were selective on T. pretiosum when applied on parasitized A. kuehniella eggs. Further studies need to be carried out to verify the toxicity of the other pesticides under semi-field and field conditions.

Doing Duo – a Case Study of Entrainment in William Forsythe’s Choreography Duo

Directory of Open Access Journals (Sweden)

Elizabeth eWaterhouse

2014-10-01

Full Text Available Entrainment theory focuses on processes in which interacting (i.e. coupled rhythmic systems stabilize, producing synchronization in the ideal sense, and forms of phase related rhythmic coordination in complex cases. In human action, entrainment involves spatiotemporal and social aspects, characterizing the meaningful activities of music, dance, and communication. How can the phenomenon of human entrainment be meaningfully studied in complex situations such as dance? We present an in-progress case study of entrainment in William Forsythe's choreography Duo, a duet in which coordinated rhythmic activity is achieved without an external musical beat and without touch-based interaction. Using concepts of entrainment from different disciplines as well as insight from Duo performer Riley Watts, we question definitions of entrainment in the context of dance. The functions of chorusing, turn-taking, complementary action, cues and alignments are discussed and linked to supporting annotated video material. While Duo challenges the definition of entrainment in dance as coordinated response to an external musical or rhythmic signal, it supports the definition of entrainment as coordinated interplay of motion and sound production by active agents (i.e., dancers in the field. Agreeing that human entrainment should be studied on multiple levels, we suggest that entrainment between the dancers in Duo is elastic in time and a propose how to test this hypothesis empirically. We do not claim that our proposed model of elasticity is applicable to all forms of human entrainment nor to all to examples of entrainment in dance. Rather, we suggest studying higher order phase correction (the stabilizing tendency of entrainment as a potential aspect to be incorporated into other models.

On the issue of quality of experience in technology supported learning

Directory of Open Access Journals (Sweden)

Kirsten Snyder

2010-12-01

Full Text Available Quality in education has been discussed for many decades, and as such the discussion reflects the social accountability to which schools are bound in order to demonstrate the degree to which they fulfill their purpose. What has changed overtime is the way in which quality is perceived and how it is used as both an accountability device as well as a form of change agency (Fredriksson & Snyder, 2004; Power, 2002; Riley & Nutall 1994; Snyder, Acker-Hocevar & Snyder, 2000; 2008. Typical accountability models, such as those found in Great Britain and the U.S. and more recently in the European Union and Sweden as well, focus on student achievement, drop-out rates, student attrition and teacher training as some of the key factors that define ”quality” in education (Fredriksson & Snyder, 2004. Presently, international comparison tests such as TIMMS, PEARLS, and PISA are acquiring a greater significance as a ”measure of quality”. At the same time, many argue that such large scale testing does not consider important factors that relate to learning, and drop-out rates do not necessarily relate to quality education. In contrast to the standard accountability and comparative models of quality, are other systemic models, such as total quality management (Deming, 1986; Juran, 1992 that focus on both process and outcome, and recognize the inter-relationship between the two. Quality, from a systemic model, thus must address a variety of factors in addition to student achievement, including elements in the learning environment, as well as the leadership of the school, the infrastructure and resource allocation, team work, etc. (Murgatroyd & Morgan, 1994; Snyder, Acker-Hocevar & Snyder, 2000.

LOFAR reveals the giant: a low-frequency radio continuum study of the outflow in the nearby FR I radio galaxy 3C 31

Science.gov (United States)

Heesen, V.; Croston, J. H.; Morganti, R.; Hardcastle, M. J.; Stewart, A. J.; Best, P. N.; Broderick, J. W.; Brüggen, M.; Brunetti, G.; ChyŻy, K. T.; Harwood, J. J.; Haverkorn, M.; Hess, K. M.; Intema, H. T.; Jamrozy, M.; Kunert-Bajraszewska, M.; McKean, J. P.; Orrú, E.; Röttgering, H. J. A.; Shimwell, T. W.; Shulevski, A.; White, G. J.; Wilcots, E. M.; Williams, W. L.

2018-03-01

We present a deep, low-frequency radio continuum study of the nearby Fanaroff-Riley class I (FR I) radio galaxy 3C 31 using a combination of LOw Frequency ARray (LOFAR; 30-85 and 115-178 MHz), Very Large Array (VLA; 290-420 MHz), Westerbork Synthesis Radio Telescope (WSRT; 609 MHz) and Giant Metre Radio Telescope (GMRT; 615 MHz) observations. Our new LOFAR 145-MHz map shows that 3C 31 has a largest physical size of 1.1 Mpc in projection, which means 3C 31 now falls in the class of giant radio galaxies. We model the radio continuum intensities with advective cosmic ray transport, evolving the cosmic ray electron population and magnetic field strength in the tails as functions of distance to the nucleus. We find that if there is no in situ particle acceleration in the tails, then decelerating flows are required that depend on radius r as v∝rβ (β ≈ -1). This then compensates for the strong adiabatic losses due to the lateral expansion of the tails. We are able to find self-consistent solutions in agreement with the entrainment model of Croston & Hardcastle, where the magnetic field provides ≈1/3 of the pressure needed for equilibrium with the surrounding intracluster medium. We obtain an advective time-scale of ≈190 Myr, which, if equated to the source age, would require an average expansion Mach number M ≈ 5 over the source lifetime. Dynamical arguments suggest that instead either the outer tail material does not represent the oldest jet plasma or else the particle ages are underestimated due to the effects of particle acceleration on large scales.

BILINGUALISM AMONG STUDENTS OF THE FACULTY OF LANGUAGE AND LITERATURE, SALATIGA, INDONESIA: A DESCRIPTIVE ANALYSIS

Directory of Open Access Journals (Sweden)

Anne Indrayanti Timotius

2017-04-01

Full Text Available Although bilingualism is an interesting phenomenon these days, not many researchers explore bilingualism in Asia. Most research in a similar field, like that done by Yip and Matthews (2007, and Harding-Esch and Riley (2003, show that children become bilingual because their parents are from countries with different mother tongues. This is not necessarily true in Asian countries like Indonesia. In Indonesia, most of its citizens are bilingual, even though both parents are Indonesian. This happens because children are not only exposed to and taught one language from a young age. Many of them are exposed to at least two languages, which are Indonesian (the national language and lingua franca of Indonesia and their local language – which is different depending on which area of Indonesia they were born or grew up. In addition, it is highly possible that exposure to other languages, such as English, may add to their capability to speak more than just two languages and thus, they become multilingual. This phenomenon has piqued the interest of the writers to conduct a study on bilingualism in Indonesia. The aim of the study is to describe bilingualism/multilingualism among a group of students in Indonesia. The data is collected by distributing questionnaires to 240 participants who are students in the Faculty of Language and Literature (FLL, Satya Wacana Christian University, Salatiga. The study reveals that there are three languages mostly spoken or used by the participants. They are Indonesian, English, and a regional language (mostly Javanese. Also, most of the students‘ first language is Indonesian. As for the second language, it is quite varied, including regional languages and English.

Central serous chorioretinopathy: a pathogenetic model

Directory of Open Access Journals (Sweden)

et al

2011-02-01

Full Text Available Antonio Caccavale1, Filippo Romanazzi1, Manuela Imparato1, Angelo Negri2, Anna Morano3, Fabio Ferentini21Department of Ophthalmology, Neuropthalmology and Ocular Immunology Service, 2Department of Ophthalmology, Hospital “C. Cantù”, Abbiategrasso, Milan, Italy; 3University Eye Clinic, Foundation IRCCS San Matteo Hospital, Pavia, ItalyAbstract: Despite numerous studies describing predominantly its demography and clinical course, many aspects of central serous chorioretinopathy (CSCR remain unclear. Perhaps the major impediment to finding an effective therapy is the difficulty of performing studies with large enough cohorts, which has meant that clinicians have focused more on therapy than on a deeper understanding of the pathogenesis of the disease. Hypotheses on the pathogenesis of CSCR have ranged from a basic alteration in the choroid to an involvement of the retinal pigment epithelium (RPE. Starting from evidence that affected subjects often present a personality prone to stress with altered pituitary–hypothalamic axis response (HPA and that they have higher levels of serum and urinary cortisol and catecholamines than healthy subjects, we hypothesize a cascade of events that may lead to CSCR through hypercoagulability and augmented platelet aggregation. In particular we investigated the role of tissue plasminogen activator, increasing plasminogen activator inhibitor 1 (PAI-1, and plasmin-α2- plasmin inhibitor complexes. We reviewed the different therapeutic approaches, including adrenergic antagonists, carbonic anhydrase inhibitors, mifepristone, ketoconazole, laser photocoagulation, intravitreal injection of bevacizumab, and photodynamic therapy with verteporfin (PDT and our model of pathogenesis seems to be in agreement with the clinical effects obtained from these treatments. In accord with our thesis, we began to treat a group of patients affected by CSCR with low-dose aspirin (75–100 mg, because of its effectiveness in other

EE-drospirenone-levomefolate calcium versus EE-drospirenone + folic acid: folate status during 24 weeks of treatment and over 20 weeks following treatment cessation

Directory of Open Access Journals (Sweden)

Diefenbach K

2013-04-01

Full Text Available Konstanze Diefenbach,1 Dietmar Trummer,1 Frank Ebert,1 Michael Lissy,2 Manuela Koch,2 Beate Rohde,1 Hartmut Blode3 1Bayer HealthCare Pharmaceuticals, Berlin, Germany; 2Nuvisan GmbH, Neu-Ulm, Germany; 3Bayer HealthCare Pharmaceuticals Global R&D Center, Beijing, People's Republic of China Background: Adequate folate supplementation in the periconceptional phase is recommended to reduce the risk of neural tube defects. Oral contraceptives may provide a reasonable delivery vehicle for folate supplementation before conception in women of childbearing potential. This study aimed to demonstrate that a fixed-dose combination of an oral contraceptive and levomefolate calcium leads to sustainable improvements in folate status compared with an oral contraceptive + folic acid. Methods: This was a double-blind, randomized, parallel-group study in which 172 healthy women aged 18–40 years received ethinylestradiol (EE-drospirenone-levomefolate calcium or EE-drospirenone + folic acid for 24 weeks (invasion phase, and EE-drospirenone for an additional 20 weeks (folate elimination phase. The main objective of the invasion phase was to examine the area under the folate concentration time-curve for plasma and red blood cell (RBC folate, while the main objective of the elimination phase was to determine the duration of time for which RBC folate concentration remained ≥ 906 nmol/L after cessation of EE-drospirenone-levomefolate calcium. Results: Mean concentration-time curves for plasma folate, RBC folate, and homocysteine were comparable between treatment groups during both study phases. During the invasion phase, plasma and RBC folate concentrations increased and approached steady-state after about 8 weeks (plasma or 24 weeks (RBC. After cessation of treatment with levomefolate calcium, folate concentrations decreased slowly. The median time to RBC folate concentrations falling below 906 nmol/L was 10 weeks (95% confidence interval 8–12 weeks after cessation

Incidence and costs of hip fractures vs strokes and acute myocardial infarction in Italy: comparative analysis based on national hospitalization records

Directory of Open Access Journals (Sweden)

Piscitelli P

2012-12-01

Full Text Available Prisco Piscitelli,1,2 Giovanni Iolascon,3 Alberto Argentiero,2 Giovanna Chitano,2 Cosimo Neglia,2 Gemma Marcucci,1 Manuela Pulimeno,2 Marco Benvenuto,2 Santa Mundi,2 Valentina Marzo,2 Daniela Donato,4 Angelo Baggiani,4 Alberto Migliore,5 Mauro Granata,6 Francesca Gimigliano,3 Raffaele Di Blasio,7 Alessandra Gimigliano,3 Lorenzo Renzulli,7 Maria Luisa Brandi,1 Alessandro Distante,2,4 Raffaele Gimigliano3,71University of Florence, Florence Italy; 2ISBEM Research Centre, Brindisi, Italy; 3Second University of Naples, Naples, Italy; 4University of Pisa, Pisa, Italy; 5Fatebenefratelli St Peter’s Hospital, Rome, Italy; 6St Filippo Neri Hospital, Rome, Italy; 7Casa di Cura Santa Maria del Pozzo, Somma Vesuviana, ItalyObjectives: As osteoporotic fractures are becoming a major health care problem in countries characterized by an increasing number of older adults, in this study we aimed to compare the incidence and costs of hip fragility fractures in Italian elderly people versus those of major cardiovascular diseases (strokes and acute myocardial infarctions [AMI] occurring in the whole adult population.Methods: We analyzed hospitalization records maintained at the national level by the Italian Ministry of Health for the diagnosis of hip fractures (ICD-9-CM codes 820–821, AMI (code 410, hemorrhagic (codes 430, 431, 432 and ischemic strokes (codes 433–434, and TIA (code 435 between 2001–2005. Cost analyses were based on diagnosis-related groups.Results: The incidence of hip fractures in elderly people has increased (+12.9% between 2001 and 2005, as well as that of AMI (+20.2% and strokes (hemorrhagic: +9.6%; ischemic: +14.7 occurring in the whole adult population; conversely, hospitalization due to TIA decreased by a rate of 13.6% between 2001 and 2005. In 2005, the hospital costs across the national health care system that were associated with hip fragility fractures in the elderly were comparable to those of strokes (both hemorrhagic and

The History and Evolution of Young and Distant Radio Sources

Science.gov (United States)

Collier, Jordan

convex spectrum is generally thought to be caused by Synchrotron Self Absorption (SSA), an internal process in which the same population of electrons is responsible for the synchrotron emission and self-absorption. However, recent studies have shown that the convex spectrum may be caused by Free-Free Absorption (FFA), an external process in which an inhomogeneous screen absorbs the synchrotron emission. The majority of GPS and CSS samples consist of Jy-level and therefore, high-luminosity sources. VLBI images show that GPS and CSS sources typically have double-lobed, edge-brightened morphologies on mas scales, appearing as scaled down versions of Fanaroff-Riley Class II (FR II) galaxies. Recently, two low-luminosity GPS sources were found to have jet-brightened morphologies, which appeared as scaled down versions of Fanaroff-Riley Class I (FR I) galaxies. From this, it was proposed that there exists a morphology-luminosity break analogous to the FR I/II break and that low-luminosity GPS and CSS sources are the compact counterparts of FR I galaxies. However, this hypothesis remains unconfirmed, since very few samples of low-luminosity GPS and CSS sources exist. We conclude that, despite being historically favoured, single inhomogeneous SSA is not the dominant form of absorption amongst a large fraction of GPS and CSS sources. We find that FFA provides a good model for the majority of the spectra with observable turnovers, suggesting an inhomogeneous and clumpy ambient medium. Furthermore, we conclude that the majority of our GPS and CSS sources are young and evolving and may undergo recurrent activity over small time scales. We conclude that a very small fraction of GPS and CSS sources consists of frustrated, dying or restarted radio galaxies. (Abstract shortened by ProQuest.).

Efeito do armazenamento de ovos de Anagasta kuehniella, Zeller (Lepidoptera: Pyralidae nas características biológicas de duas gerações sucessivas de Trichogramma pretiosum, Riley (Hymenopitera: Trichogrammatidae

Directory of Open Access Journals (Sweden)

Clara Elizabete Medeiros Marques

2015-07-01

Full Text Available Normal 0 21 false false false PT-BR X-NONE X-NONE MicrosoftInternetExplorer4 Este trabalho teve por objetivo avaliar o efeito do armazenamento de ovos de A. kuehniella, em condições de baixas temperaturas, sobre os seguintes parâmetros biológicos do T. pretiosum: Capacidade de parasitismo, Viabilidade Aparente e Razão sexual. Este bioensaio foi composto de seis tratamentos, sendo: 0 (testemunha, 5, 10, 15, 20 e 25 dias de armazenamento numa temperatura de 4 ± 1°C. Após cada período de armazenamento, os ovos foram submetidos ao parasitismo por um período de 24 horas, em sala climatizada com temperatura de 25 ± 1°C, umidade relativa de 70 ± 10% e fotofase de 12 horas. Observou-se que, a capacidade de parasitismo do T. pretiosum não é afetada com o armazenamento de ovos de A. kuehniella por um período de até 20 dias em ambas as gerações. A porcentagem de emergência foi maior na geração F1. O período de armazenamento não afetou a razão sexual. O armazenamento de ovos inviabilizados de ovos A. kuehnella pode ser incorporado como importante etapa no estabelecimento de técnica de criação de T. pretiosum para pesquisa ou mesmo em programas de controle biológico aplicado.

Failure of two consecutive annual treatments with ivermectin to eradicate the reindeer parasites (Hypoderma tarandi, Cephenemyia trompe and Linguatula arctica from an island in northern Norway

Directory of Open Access Journals (Sweden)

Arne C. Nilssen

2002-03-01

Full Text Available The highly efficient endectocide ivermectin is used to reduce the burden of parasites in many semidomestic reindeer herds in northern Fennoscandia. In the autumn of 1995 and 1996 all reindeer on the island of Silda (42 km2 were treated with ivermectin in an attempt to eradicate the warble fly (Hypoderma (=Oedemagena tarandi (L., the nose bot fly (Cephenemyia trompe (Modeer (Diptera: Oestridae and the sinus worm (Linguatula arctica Riley, Haugerud and Nilssen (Pentastomida: Linguatulidae. Silda is situated 2-3 km off the mainland of Finnmark, northern Norway, and supports about 475 reindeer in summer. A year after the first treatment, the mean abundance of H. tarandi was reduced from 3.5 to 0.6, but a year after the second treatment the mean abundance unexpectedly had increased to 4.5. After one year without treatment, the mean abundance and prevalence of the three target parasites were at the same level, or higher, than pre-treatment levels. The main hypothesis for the failure to eliminate the parasites is that gravid H. tarandi and C. trompe females originating from untreated reindeer in adjacent mainland areas dispersed to the island during the warm summer of 1997 (possibly also in 1998. As these oestrids are strong flyers, it may not be too difficult for them to cross >2-3 km of oceanic waters. There are no good explanations for the failure to eradicate L. arctica, but the results indicate that there may be elements in its life cycle that are unknown. The conclusion of the study is that it may be difficult or impossible to eradicate these parasites permanently, even locally such as on islands unless adjacent areas on the mainland are also cleared.

Cartographic Production for the FLaSH Map Study: Generation of Rugosity Grids, 2008

Science.gov (United States)

Robbins, Lisa L.; Knorr, Paul O.; Hansen, Mark

2010-01-01

Project Summary This series of raster data is a U.S. Geological Survey (USGS) Data Series release from the Florida Shelf Habitat Project (FLaSH). This disc contains two raster images in Environmental Systems Research Institute, Inc. (ESRI) raster grid format, jpeg image format, and Geo-referenced Tagged Image File Format (GeoTIFF). Data is also provided in non-image ASCII format. Rugosity grids at two resolutions (250 m and 1000 m) were generated for West Florida shelf waters to 250 m using a custom algorithm that follows the methods of Valentine and others (2004). The Methods portion of this document describes the specific steps used to generate the raster images. Rugosity, also referred to as roughness, ruggedness, or the surface-area ratio (Riley and others, 1999; Wilson and others, 2007), is a visual and quantitative measurement of terrain complexity, a common variable in ecological habitat studies. The rugosity of an area can affect biota by influencing habitat, providing shelter from elements, determining the quantity and type of living space, influencing the type and quantity of flora, affecting predator-prey relationships by providing cover and concealment, and, as an expression of vertical relief, can influence local environmental conditions such as temperature and moisture. In the marine environment rugosity can furthermore influence current flow rate and direction, increase the residence time of water in an area through eddying and current deflection, influence local water conditions such as chemistry, turbidity, and temperature, and influence the rate and nature of sedimentary deposition. State-of-the-art computer-mapping techniques and data-processing tools were used to develop shelf-wide raster and vector data layers. Florida Shelf Habitat (FLaSH) Mapping Project (http://coastal.er.usgs.gov/flash) endeavors to locate available data, identify data gaps, synthesize existing information, and expand our understanding of geologic processes in our dynamic

Plant-Herbivore and Plant-Pollinator Interactions of the Developing Perennial Oilseed Crop, Silphium integrifolium.

Science.gov (United States)

Prasifka, J R; Mallinger, R E; Hulke, B S; Larson, S R; Van Tassel, D

2017-12-08

Sampling in Kansas and North Dakota documented the plant-herbivore and plant-pollinator interactions of the developing perennial oilseed crop, Silphium integrifolium Michx. The larva of the tortricid moth, Eucosma giganteana (Riley), was the most damaging floret- and seed-feeding pest in Kansas, with infested heads producing ≈85% (2015) or ≈45% (2016) fewer seeds than apparently undamaged heads. Necrosis of apical meristems caused stunting and delayed bloom in Kansas; though the source of the necrosis is not known, observations of the tarnished plant bug, Lygus lineolaris (Palisot de Beauvois; Hemiptera: Miridae), in S. integrifolium terminals suggest a possible cause. In North Dakota, E. giganteana larvae were not found, but pupae of Neotephritis finalis (Loew; Diptera: Tephritidae), a minor pest of cultivated sunflower, were common in the heads of S. integrifolium. Bees appeared highly attracted to S. integrifolium, and in all but one observation, bees were seen actively collecting pollen. The most common bees included large apids (Apis mellifera L., Svastra obliqua [Say], Melissodes spp.) and small-bodied halictids (Lasioglossum [Dialictus] spp.). Controlled pollination experiments demonstrated that S. integrifolium is pollinator dependent, due to both mechanical barriers (imperfect florets and protogyny) and genetic self-incompatibility. Subsequent greenhouse tests and AFLP confirmation of putative self-progeny show that a low (<1%) level of self-pollination is possible. If genetic self-incompatibility is eventually reduced through breeding, mechanical barriers would maintain a reliance on bees to move pollen between male and female florets. Collectively, observations on S. integrifolium show that both herbivore and pollinator management are important to maximize seed production. Published by Oxford University Press on behalf of Entomological Society of America 2017. This work is written by (a) US Government employee(s) and is in the public domain in the US.

Environmental condition assessment of US military installations using GIS based spatial multi-criteria decision analysis.

Science.gov (United States)

Singer, Steve; Wang, Guangxing; Howard, Heidi; Anderson, Alan

2012-08-01

Environment functions in various aspects including soil and water conservation, biodiversity and habitats, and landscape aesthetics. Comprehensive assessment of environmental condition is thus a great challenge. The issues include how to assess individual environmental components such as landscape aesthetics and integrate them into an indicator that can comprehensively quantify environmental condition. In this study, a geographic information systems based spatial multi-criteria decision analysis was used to integrate environmental variables and create the indicator. This approach was applied to Fort Riley Military installation in which land condition and its dynamics due to military training activities were assessed. The indicator was derived by integrating soil erosion, water quality, landscape fragmentation, landscape aesthetics, and noise based on the weights from the experts by assessing and ranking the environmental variables in terms of their importance. The results showed that landscape level indicator well quantified the overall environmental condition and its dynamics, while the indicator at level of patch that is defined as a homogeneous area that is different from its surroundings detailed the spatiotemporal variability of environmental condition. The environmental condition was mostly determined by soil erosion, then landscape fragmentation, water quality, landscape aesthetics, and noise. Overall, environmental condition at both landscape and patch levels greatly varied depending on the degree of ground and canopy disturbance and their spatial patterns due to military training activities and being related to slope. It was also determined the environment itself could be recovered quickly once military training was halt or reduced. Thus, this study provided an effective tool for the army land managers to monitor environmental dynamics and plan military training activities. Its limitation lies at that the obtained values of the indicator vary and are

Defining and targeting health disparities in chronic obstructive pulmonary disease

Directory of Open Access Journals (Sweden)

Pleasants RA

2016-10-01

Full Text Available Roy A Pleasants,1–3 Isaretta L Riley,1–3 David M Mannino4 1Duke Asthma, Allergy, and Airways Center, 2Division of Pulmonary, Allergy, and Critical Care Medicine, Duke University School of Medicine, 3Durham VA Medical Center, Durham, NC, 4Division of Pulmonary, Critical Care, and Sleep Medicine, Pulmonary Epidemiology Research Laboratory, University of Kentucky, Lexington, KY, USA Abstract: The global burden of chronic obstructive pulmonary disease (COPD continues to grow in part due to better outcomes in other major diseases and in part because a substantial portion of the worldwide population continues to be exposed to inhalant toxins. However, a disproportionate burden of COPD occurs in people of low socioeconomic status (SES due to differences in health behaviors, sociopolitical factors, and social and structural environmental exposures. Tobacco use, occupations with exposure to inhalant toxins, and indoor biomass fuel (BF exposure are more common in low SES populations. Not only does SES affect the risk of developing COPD and etiologies, it is also associated with worsened COPD health outcomes. Effective interventions in these people are needed to decrease these disparities. Efforts that may help lessen these health inequities in low SES include 1 better surveillance targeting diagnosed and undiagnosed COPD in disadvantaged people, 2 educating the public and those involved in health care provision about the disease, 3 improving access to cost-effective and affordable health care, and 4 markedly increasing the efforts to prevent disease through smoking cessation, minimizing use and exposure to BF, and decreasing occupational exposures. COPD is considered to be one the most preventable major causes of death from a chronic disease in the world; therefore, effective interventions could have a major impact on reducing the global burden of the disease, especially in socioeconomically disadvantaged populations. Keywords: health disparities

Optimal chemotherapy for leukemia: a model-based strategy for individualized treatment.

Directory of Open Access Journals (Sweden)

Devaraj Jayachandran

Full Text Available Acute Lymphoblastic Leukemia, commonly known as ALL, is a predominant form of cancer during childhood. With the advent of modern healthcare support, the 5-year survival rate has been impressive in the recent past. However, long-term ALL survivors embattle several treatment-related medical and socio-economic complications due to excessive and inordinate chemotherapy doses received during treatment. In this work, we present a model-based approach to personalize 6-Mercaptopurine (6-MP treatment for childhood ALL with a provision for incorporating the pharmacogenomic variations among patients. Semi-mechanistic mathematical models were developed and validated for i 6-MP metabolism, ii red blood cell mean corpuscular volume (MCV dynamics, a surrogate marker for treatment efficacy, and iii leukopenia, a major side-effect. With the constraint of getting limited data from clinics, a global sensitivity analysis based model reduction technique was employed to reduce the parameter space arising from semi-mechanistic models. The reduced, sensitive parameters were used to individualize the average patient model to a specific patient so as to minimize the model uncertainty. Models fit the data well and mimic diverse behavior observed among patients with minimum parameters. The model was validated with real patient data obtained from literature and Riley Hospital for Children in Indianapolis. Patient models were used to optimize the dose for an individual patient through nonlinear model predictive control. The implementation of our approach in clinical practice is realizable with routinely measured complete blood counts (CBC and a few additional metabolite measurements. The proposed approach promises to achieve model-based individualized treatment to a specific patient, as opposed to a standard-dose-for-all, and to prescribe an optimal dose for a desired outcome with minimum side-effects.

Herbicide toxicity, selectivity and hormesis of nicosulfuron on 10 Trichogrammatidae (Hymenoptera) species parasitizing Anagasta ( = Ephestia) kuehniella (Lepidoptera: Pyralidae) eggs.

Science.gov (United States)

Leite, Germano L D; de Paulo, Paula D; Zanuncio, José C; Tavares, Wagner De S; Alvarenga, Anarelly C; Dourado, Luan R; Bispo, Edilson P R; Soares, Marcus A

2017-01-02

Selective agrochemicals including herbicides that do not affect non-target organisms such as natural enemies are important in the integrated pest management (IPM) programs. The aim of this study was to evaluate the herbicide toxicity, selectivity and hormesis of nicosulfuron, recommended for the corn Zea mays L. (Poaceae) crop, on 10 Trichogrammatidae (Hymenoptera) species. A female of each Trichogramma spp. or Trichogrammatoidea annulata De Santis, 1972 was individually placed in plastic test tubes (no choice) with a cardboard containing 45 flour moth Anagasta ( = Ephestia) kuehniella Zeller, 1879 (Lepidoptera: Pyralidae) eggs. Parasitism by these natural enemies was allowed for 48 h and the cardboards were sprayed with the herbicide nicosulfuron at 1.50 L.ha -1 , along with the control (only distilled water). Nicosulfuron reduced the emergence rate of Trichogramma bruni Nagaraja, 1983 females, but increased that of Trichogramma pretiosum Riley, 1879, Trichogramma acacioi Brun, Moraes and Smith, 1984 and T. annulata females. Conversely, this herbicide increased the emergence rate of Trichogramma brasiliensis Ashmead, 1904, T. bruni, Trichogramma galloi Zucchi, 1988 and Trichogramma soaresi Nagaraja, 1983 males and decreased those of T. acacioi, Trichogramma atopovilia Oatman and Platner, 1983 and T. pretiosum males. In addition, nicosulfuron reduced the sex ratio of T. galloi, Trichogramma bennetti Nagaraja and Nagarkatti, 1973 and T. pretiosum and increased that of T. acacioi, T. bruni, T. annulata, Trichogramma demoraesi Nagaraja, 1983, T. soaresi and T. brasiliensis. The herbicide nicosulfuron was "harmless" (class 1, <30% reduction) for females and the sex ratio of all Trichogrammatidae species based on the International Organization for Biological Control (IOBC) classification. The possible hormesis effect of nicosulfuron on Trichogrammatidae species and on the bacterium Wolbachia sp. (Rickettsiales: Rickettsiaceae) was also discussed.

ZZ ELAST2, Database of Cross Sections for the Elastic Scattering of Electrons and Positrons by Atoms

International Nuclear Information System (INIS)

2002-01-01

1 - Historical background and information: This database is an extension of the earlier database, 'Elastic Scattering of Electrons and Positrons by Atoms: Database ELAST', Report NISTIR 5188, 1993. Cross sections for the elastic scattering of electrons and positrons by atoms were calculated at energies from 1 KeV to 100 MeV. Up to 10 MeV the RELEL code of Riley was used. Above 10 MeV the ELSCAT code was used, which calculated the factored cross sections and evaluates the screening factor Kscr in WKB approximation. 2 - Application of the data: This database was developed to provide input for the transport codes, such as ETRAN, and includes differential cross sections, the total cross section, and the transport cross sections. In addition, a code TRANSX is provided that generates transport cross section of arbitrary order needed as input for the calculation of Goudsmit-Saunderson multiple-scattering angular distribution 3 - Source and scope of data: The database includes cross sections at 61 energies for electrons and 41 energies from positrons, covering the energy region from 1 KeV to 100 MeV. The number of deflection angles included in the database is 314 angles. Total and transport cross sections are also included in this package. The data files have an extension (jjj) that represents the atomic number of the target atom. The database includes auxiliary data files that enable the ELASTIC code to include the following optional modifications: (i) the inclusion of the exchange correction for electrons scattering; (ii) the conversion of the cross sections for scattering by free atoms to cross sections for scattering by atoms in solids; (iii) ti reduction of the cross sections at large angles and at high energies when the nucleus is treated as an extended rather than a point charge

Extended radio emission and the nature of blazars

International Nuclear Information System (INIS)

Antonucci, R.R.J.; Ulvestad, J.S.

1985-01-01

The VLA has been used at 20 cm to map all 23 of the 54 confirmed blazars listed in the Angel and Stockman review paper that had not been mapped before at high resolution. (Blazars include BL Lac objects and optically violently variable quasars.) In addition, data on most of the previously mapped blazars have been reprocessed in order to achieve higher dynamic range. Extended emission has been detected associated with 49 of the 54 objects. The extended radio emission has been used to test the hypothesis that blazars are normal radio galaxies and radio quasars viewed along the jet axes. We find that blazars have substantial extended power, consistent with this hypothesis. Many have extended powers as high as the luminous Fanaroff-Riley class 2 radio doubles. The projected linear sizes are small, as expected from foreshortening of the extended sources, and many blazars have the expected core-halo morphology. There are also several small doubles, a head-tail source, and some one-sided sources, and these could be in cases where the line of sight is slightly off the jet axis, or projections of asymmetrical radio galaxies and quasars. The ratio of core to extended radio emission has been studied as a possible indicator of viewing aspect or beaming intensity. It is found to correlate with optical polarization, optical and radio core variability, and one-sided radio morphology. We can go beyond these consistency checks and work toward a proof of the hypothesis under discussion. The flux from the extended emission alone is sufficient in some blazars to qualify them for inclusion in the 3C and 4C catalogs. Suppose that the radio core emission is anisotropic, but the extended emission is predominantly isotropic. The isotropy of the extended emission implies that these blazars would be in the catalogs even if viewed from the side

Extragalactic Ultra-High Energy Cosmic-Rays - Part One - Contribution from Hot Spots in Fr-II Radio Galaxies

Science.gov (United States)

Rachen, J. P.; Biermann, P. L.

1993-05-01

The hot spots of Fanaroff-Riley class II radio galaxies, considered as working surfaces of highly collimated plasma jets, are proposed to be the dominant sources of the cosmic rays at energies above 1 EeV^a^. We apply the model of first order Fermi acceleration at strong, nonrelativistic shock waves to the hot spot region. The strength of the model has been demonstrated by Biermann & Strittmatter (1987) and by Meisenheimer et al. (1989), who explain their radio-to optical spectra and infer the physical conditions of the radiating plasma. Using synchrotron radiating electrons as a trace, we can calculate the spectrum and the maximum energy of protons accelerated under the same conditions. For simplicity, we disregard heavy nuclei, but their probable role is discussed. The normalization of proton flux injected in extragalactic space is performed by using estimates from Rawlings & Saunders (1991) for the total energy stored in relativistic particles inside the jets and radio galaxy evolution models given by Peacock (1985). We calculate the spectral modifications due to interactions of the protons with the microwave background photons in an evolving universe, following Berezinsky & Grigor'eva (1988). Constraints on the extragalactic magnetic field can be imposed, since it must permit an almost homogeneous filling of the universe with energetic protons. The observed ultra-high energy cosmic ray spectrum is reproduced in slope and flux, limited at high energies by the Greisen-cutoff at about 80 EeV. The requirements on the content of relativistic protons in jets and the constraints to the extragalactic magnetic field are consistent with common estimates. The data beyond the Greisen cutoff for protons may be explained by including heavy nuclei in our model, since they can propagate over cosmological distances up to more than 100 EeV.

224Ra distribution in surface and deep water of Long Island Sound: sources and horizontal transport rates

International Nuclear Information System (INIS)

Torgersen, T.; O'Donnell, J.; DeAngelo, E.; Turekian, K.K.; Turekian, V.C.; Tanaka, N.

1997-01-01

Measurements of surface water and deep water 224 Ra(half-life 3.64 days) distributions in Long Island Sound (LIS) were conducted in July 1991. Because the pycnocline structure of LIS had been in place for about 50 days in July (long compared to the half-life of 224 Ra) in the surface water and the deep water operate as separate systems. In the surface water, the fine-grain sediments of nearshore and saltmarsh environments provide a strong source of 224 Ra, which is horizontally mixed away from the short to central LIS. A one-dimensional model of 224 Ra distribution suggests a cross-LIS horizontal eddy dispersivity of 5-50 m 2 s -1 . In the deep water, the mid-LIS sediment flux of 224 Ra is enhanced by ∼ 2x relative to the periphery, and the horizontal eddy flux is from central LIS to the periphery. A second one-dimensional model suggests a cross-LIS horizontal eddy dispersivity below the thermocline of 5-50 m 2 -1 . 224 Ra fluxes into the deep water of the central LIS are likely enhanced by (1) inhomogeneous sediment or (2) a reduced scavenging of 224 Ra in the sediments of central LIS brought about by low oxygen conditions (hypoxia) and the loss of the MnO 2 scavenging layer in the sediments. These rates of horizontal eddy dispersivity are significantly less than the estimate of 100-650 m 2 s -1 (Riley, 1967) but are consistent with the transport necessary to explain the dynamics of oxygen depletion in summer LIS. These results demonstrate the use of 224 Ra for quantifying the parameters needed to describe estuarine mixing and transport. (Author)

Flight Synchrony among the Major Moth Pests of Cranberries in the Upper Midwest, USA

Directory of Open Access Journals (Sweden)

Shawn A. Steffan

2017-02-01

Full Text Available The cranberry fruitworm (Acrobasis vaccinii Riley, sparganothis fruitworm (Sparganothis sulfureana Clemens, and blackheaded fireworm (Rhopobota naevana Hübner are historically significant pests of cranberries (Vaccinium macrocarpon Aiton in the Upper Midwest (Wisconsin, USA. Their respective natural histories are well documented but correlations between developmental benchmarks (e.g., larval eclosion and degree-day accruals are not yet known. Treatment timings are critical to the optimization of any given control tactic, and degree-day accrual facilitates optimization by quantifying the developmental status of pest populations. When key developmental benchmarks in the pest life cycle are linked to degree-days, real-time weather data can be used to predict precise treatment timings. Here, we provide the degree-day accumulations associated with discrete biological events (i.e., initiation of flight and peak flight for the three most consistent moth pests of cranberries in Wisconsin. Moths were trapped each spring and summer from 2003 to 2011. To characterize flight dynamics and average timing of flight initiation, pheromone-baited trap-catch data were tallied for all three pest species within each of seven growing seasons. These flight dynamics were then associated with the corresponding degree-day accumulations generated using the cranberry plant’s developmental thresholds. Finally, models were fit to the data in order to determine the peak flight of each species. The initiation of the spring flight among all three moth species was highly synchronous, aiding in the timing of control tactics; however, there were substantial differences in the timing of peak flight among the moth species. Characterization of the relationship between temperature and pest development allows pest management professionals to target specific life stages, improving the efficacy of any given pest control tactic.

Self-reported chronic pain is associated with physical performance in older people leaving aged care rehabilitation

Directory of Open Access Journals (Sweden)

Pereira LS

2014-02-01

Full Text Available Leani Souza Máximo Pereira,1,2 Catherine Sherrington,2,3 Manuela L Ferreira,2 Anne Tiedemann,2,3 Paulo H Ferreira,4 Fiona M Blyth,5 Jacqueline CT Close,3,6 Morag Taylor,3,6 Stephen R Lord3 1Department of Physiotherapy, School of Physical Education, Physiotherapy, and Occupational Therapy, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; 2Musculoskeletal Division, The George Institute for Global Health, The University of Sydney, Sydney, Australia; 3Neuroscience Research Australia, University of New South Wales, Sydney, Australia; 4Discipline of Physiotherapy, Faculty of Health Sciences, The University of Sydney, Sydney, Australia; 5Pain Management and Research Institute, Royal North Shore Hospital, The University of Sydney, Sydney, Australia; 6Prince of Wales Clinical School, University of New South Wales, Sydney, Australia Background/objectives: The impact of pain on the physical performance of patients in aged care rehabilitation is not known. The study sought to assess 1 the prevalence of pain in older people being discharged from inpatient rehabilitation; 2 the association between self-reported pain and physical performance in people being discharged from inpatient rehabilitation; and 3 the association between self-reported pain and physical performance in this population, after adjusting for potential confounding factors. Methods: This was an observational cross-sectional study of 420 older people at two inpatient aged care rehabilitation units. Physical performance was assessed using the Lower Limb Summary Performance Score. Pain was assessed with questions about the extent to which participants were troubled by pain, the duration of symptoms, and the impact of chronic pain on everyday activity. Depression and the number of comorbidities were assessed by questionnaire and medical file audit. Cognition was assessed with the Mini-Mental State Examination. Results: Thirty percent of participants reported chronic pain (pain

Self- versus physician-collected samples for the follow-up of human papillomavirus-positive women in sub-Saharan Africa

Directory of Open Access Journals (Sweden)

Viviano M

2018-04-01

Full Text Available Manuela Viviano,1,* Phuong Lien Tran,1,* Bruno Kenfack,2 Rosa Catarino,1 Mohamed Akaaboune,1,† Liliane Temogne,2 Eveline Tincho Foguem,2 Pierre Vassilakos,3 Patrick Petignat1 1Gynecology Division, Geneva University Hospitals, Geneva, Switzerland; 2Department of Biomedical Sciences, University of Dschang, Dschang, Cameroon; 3Geneva Foundation for Medical Education and Research, Geneva, Switzerland *These authors contributed equally to the work †MA passed away on July 31, 2017 Introduction: Human papillomavirus (HPV testing is a suitable tool for primary cervical cancer (CC screening and follow-up in low-resource settings. Vaginal samples taken by women themselves (Self-HPV are an interesting alternative to physician-performed sampling (Dr-HPV. Our aim was to assess the performance of Self-HPV and Dr-HPV at 6 and 12 months following a CC screening campaign. Methods: This study was carried out at the Dschang District Hospital, Cameroon. Women aged 30–49 years were recruited in a CC screening campaign. HPV-positive women, of whom 2/3 were treated with thermoablation because of abnormal results at baseline screening, were invited to participate in a follow-up study. Self- and Dr-HPV, as well as cytology, were performed at 6 and 12 months. HPV samples were analyzed using the Xpert HPV assay. Sensitivity and specificity for the detection of low-grade squamous intraepithelial lesion or worse and of high-grade squamous intraepithelial lesion or worse were calculated for Self-HPV and Dr-HPV, using cytology as the reference diagnosis. Results: Overall, 188 HPV-positive women were invited to attend follow-up. The obtained follow-up visits’ attendance was 154 (81.9% and 131 (69.7% at 6 and 12 months, respectively. While the overall performance of Dr-HPV at 6 months was slightly superior, Self-HPV showed an improved sensitivity for HSIL+ detection at 12 months when compared with Dr-HPV (83.3% [95% CI 41.8–98.9] versus 71.4% [95% CI 21.5–95

The effects of an 8-week multicomponent inpatient treatment program on body composition and anaerobic fitness in overweight and obese children and adolescents

Directory of Open Access Journals (Sweden)

Karner-Rezek K

2013-03-01

Full Text Available Klaus Karner-Rezek,1 Beat Knechtle,2,3 Matthias Fenzl,4 Christian Schlegel,4 Manuela Konrad,5 Thomas Rosemann2 1Private University of the Principality of Liechtenstein, Triesen, Principality of Liechtenstein, 2Institute of General Practice and for Health Services Research, University of Zurich, Zurich, Switzerland; 3Gesundheitszentrum St Gallen, St Gallen, Switzerland; 4Swiss Olympic Medical Center, Medizinisches Zentrum Bad Ragaz, Switzerland; 5University of Applied Sciences JOANNEUM, Bad Gleichenberg, Austria Background: High intensity exercise is considered as an effective means for reducing body fat. The aims of the present study were to investigate (1 whether body mass would be lost and body composition would change and (2 whether variables of anaerobic fitness prior to the intervention period would be related to loss of body mass and changes in body composition in overweight and obese children and adolescents. Methods: A total of 28 children and adolescents (19 boys, 9 girls attended an 8-week multicomponent inpatient program. Caloric intake was based on the subject's weight and a daily energy deficit of ~500 kcal was targeted. At the beginning and at the end of the program, variables of anaerobic fitness were assessed using Wingate tests. Body composition was measured before and after the program using dual-energy X-ray absorptiometry. Results: Body mass decreased by 11.4% ± 1.6% in boys and by 11.0% ± 2.8% in girls (P < 0.001. Fat mass decreased by 23.8% ± 6.1% in boys and by 21.5% ± 5.2% in girls (P < 0.001. The decrease in fat mass was associated with the decrease in body mass in boys (r = 0.54, P = 0.017 but not in girls (P > 0.05. The decrease in body mass and the decrease in fat mass were neither associated with overall energy expenditure nor with the energy deficit in both genders (P > 0.05. Mean power in W/kg increased in the Wingate tests by 95.4% ± 109.1% in boys and by 100.0% ± 119.9% in girls (P < 0.001. Conclusions

Looking at Op Art from a computational viewpoint.

Science.gov (United States)

Zanker, Johannes M

2004-01-01

Arts history tells an exciting story about repeated attempts to represent features that are crucial for the understanding of our environment and which, at the same time, go beyond the inherently two-dimensional nature of a flat painting surface: depth and motion. In the twentieth century, Op artists such as Bridget Riley began to experiment with simple black and white patterns that do not represent motion in an artistic way but actually create vivid dynamic illusions in static pictures. The cause of motion illusions in such paintings is still a matter of debate. The role of involuntary eye movements in this phenomenon is studied here with a computational approach. The possible consequences of shifting the retinal image of synthetic wave gratings, dubbed as 'riloids', were analysed by a two-dimensional array of motion detectors (2DMD model), which generates response maps representing the spatial distribution of motion signals generated by such a stimulus. For a two-frame sequence reflecting a saccadic displacement, these motion signal maps contain extended patches in which local directions change only little. These directions, however, do not usually precisely correspond to the direction of pattern displacement that can be expected from the geometry of the curved gratings as an instance of the so-called 'aperture problem'. The patchy structure of the simulated motion detector response to the displacement of riloids resembles the motion illusion, which is not perceived as a coherent shift of the whole pattern but as a wobbling and jazzing of ill-defined regions. Although other explanations are not excluded, this might support the view that the puzzle of Op Art motion illusions could potentially have an almost trivial solution in terms of small involuntary eye movement leading to image shifts that are picked up by well-known motion detectors in the early visual system. This view can have further consequences for our understanding of how the human visual system usually

Influência da idade do hospedeiro e da aprendizagem no comportamento quimiotáxico e no parasitismo de Trichogramma pretiosum

Directory of Open Access Journals (Sweden)

Camila C. Vargas

Full Text Available RESUMO Trichogramma pretiosum Riley, 1879 mantido em ovos de Ephestia kuehniella Zeller, 1879, tem sido utilizado no controle biológico de Spodoptera frugiperda (J. E. Smith, 1797. No entanto, fatores como idade do hospedeiro e experiência prévia, podem influenciar o parasitismo e o comportamento do parasitoide. Esse estudo avaliou a influência da idade dos ovos e da experiência em ovos e extrato de ovos de S. frugiperda no comportamento quimiotáxico e no parasitismo de T. pretiosum. Ovos de S. frugiperda com 24, 48 e 72 horas, foram expostos a fêmeas de T. pretiosum. Também foi avaliado o tempo de experiência do parasitoide, no mesmo hospedeiro, por 1, 3, 4, 5, 6 e 24 horas, assim como, seu tempo de exposição (1, 2, 3 e 24 horas. As respostas quimiotáxicas de T. pretiosum (experiente e não experiente em extrato de ovos de S. frugiperda foram observadas em olfatômetro tipo Y. As taxas de parasitismo foram registradas em teste de escolha, com insetos experientes e inexperientes com ovos e extrato de ovos de S. frugiperda. O parasitismo em S. frugiperda foi significativamente maior em ovos com 24 horas de idade. Fêmeas inexperientes e experientes por 1, 3 e 4 horas, apresentaram uma menor taxa de parasitismo, quando comparadas a fêmeas expostas por 5, 6 e 24 horas. Não houve diferença de parasitismo em fêmeas expostas por 2, 3 e 24 horas, comparadas às expostas por uma hora. Fêmeas experientes foram mais atraídas ao extrato de ovos de S. frugiperda, do que ao controle (hexano. A porcentagem de parasitismo, em fêmeas inexperientes, foi maior em ovos de E. kuehniella (hospedeiro de origem, no entanto, o mesmo resultado não foi observado em fêmeas experientes.

Unification in the low radio luminosity regime: evidence from optical line emission

Science.gov (United States)

Marchã, M. J. M.; Browne, I. W. A.; Jethava, N.; Antón, S.

2005-08-01

We address the question of whether or not the properties of all low-luminosity flat spectrum radio sources, not just the obvious BL Lac objects, are consistent with them being the relativistically beamed counterparts of the low radio luminosity radio galaxies (the Fanaroff-Riley type 1, FR I). We have accumulated data on a well-defined sample of low redshift, core-dominated, radio sources all of which have one-sided core-jet structures seen with very long baseline interferometry, just like most BL Lac objects. We first compare the emission-line luminosities of the sample of core-dominated radio sources with a matched sample of FR I radio galaxies. The emission lines in the core-dominated objects are on average significantly more luminous than those in the comparison sample, inconsistent with the simplest unified models in which there is no orientation dependence of the line emission. We then compare the properties of our core-dominated sample with those of a sample of radio-emitting UGC galaxies selected without bias to core strength. The core-dominated objects fit well on the UGC correlation between line emission and radio core strength found by Verdoes Kleijn et al. The results are not consistent with all the objects participating in a simple unified model in which the observed line emission is orientation independent, though they could fit a single, unified model provided that some FR I radio galaxies have emission line regions that become more visible when viewed along the jet axis. However, they are equally consistent with a scenario in which, for the majority of objects, beaming has minimal effect on the observed core luminosities of a large fraction of the FR I population and that intrinsically stronger cores simply give rise to stronger emission lines. We conclude that FR I unification is much more complex than usually portrayed, and models combining beaming with an intrinsic relationship between core and emission line strengths need to be explored.

Innovations and Reproduction in Second Language (L2 New Media: A Discursive- Semiotic Study of Selected SMS Text Messages in Nigeria

Directory of Open Access Journals (Sweden)

Tunde Opeibi

2013-03-01

Full Text Available Since the turn of the new millennium, the new media has continued to alter the communication configuration in modern societies. The social media tools have been influencing the way we interact and communicate. These wireless networks have confirmed that our world has indeed become a global village by creating a superhighway for communication possibilities never witnessed in human history. While scholars  have explored the roles of  some of the new media platforms e.g. Facebook  blogging, and twitter for private and public discourses(e.g., Taiwo, 2010; Presley, 2010, 2012,  previous studies in the use of SMS in Nigeria have concentrated more on sociolinguistic, lexical, or morpho-syntactic  features of text messages (e.g., Awonusi, 2004; Chiluwa, 2010. The present study, however, considers aspects of the new media discourse strategies as resources in a second language setting that demonstrate users’ bilingual creativity. It adopts a discursive-semiotic approach in its analytical paradigm to examine how participants, sharing the mobile protocols, deploy linguistic and non-linguistic facilities as well as contextual resources to create relationship and to enact meaning. The approaches of Discourse Analysis (DA and Semiotics (Schiffrin, 1994; Chandler, 2001 as well as insight from Computer-Mediated Communication (CMC, and Computer-Mediated Discourse Analysis (CMDA(Herring 2001, 2004;  O’Riley, 2005;  Herring, 2007 provide the theoretical underpinning for this study.  CMC and CMDA, for instance, have been used as tool kits to study and   to explain how the new media technologies influence the strategies with which language users within a given virtual sphere engage a wide range of audience through the virtual protocols. The study finds that the use of text messages has opened up creative ways of deploying the resources of a non-native language (English among bilinguals in Nigeria. The outcome of this innovative and reproduction process

HAVING A PEEK INTO THE ROOM OF HAROLD PINTER

Directory of Open Access Journals (Sweden)

Kadir ALKAYA

2014-12-01

Full Text Available Sessizliğin konuşma, konuşmanınsa bir anlaşamama olgusuna dönüştüğü Pinter'ın "the Room" adlı oyununa farklı bir açıdan bakılınca görülenlerin paylaşıldığı bir yazı. Küçük bir odada, iki kişilik bir toplumda karşılıklı çıkar elde etme olgusu etrafında birleştikleri iddia edilen iki insan arasındaki ilişkinin bir yorumu. Pinter'ın karakterlerine yüklediği görev nedeniyle "ne tam ispatlanabilecek ne de inkar edilebilecek" yorumlar. Marksist pencereden bakıldığında bu oda içerisindeki birlikteliğin Bert in (koca Rose üzerinde uyguladığı baskı, dış dünyaya kapalılığın getirdiği daha iyi olanı görmemişlikten doğan mevcudu kaybetme korkusuyla her şeyi beğenme durumu. Karı koca arasındaki bir ilişkiden çok, patron ve çalışanı arasındaki ilişkiye benzetilen bir ilişki. Rose'a geçmişindeki muhtemelen bugüne göre daha güzel olan durumunu hatırlatmak üzere gelen Riley'nin Bert tarafından öldürülüp bir anlamda tarihin susturulması. Sonuçta iki kişilik bu toplum ve bu toplumdaki baskı rejimi bir şekilde sona eriyor. Rose'un etrafında dönen olayları apolitik olmasından dolayı görememesi fiziksel bir körlüğe dönüşüyor, Bert ise en büyük desteğini kaybediyor.

Effects of intra- and interpatch host density on egg parasitism by three species of Trichogramma.

Science.gov (United States)

Grieshop, Matthew J; Flinn, Paul W; Nechols, James R

2010-01-01

Host-foraging responses to different intra- and interpatch densities were used to assess three Trichogramma spp. (Hymenoptera: Trichogrammatidae) Trichogramma deion Pinto and Oatman, T. ostriniae Pang and Chen, and T. pretiosum Riley - as potential biological control agents for the Indian meal moth, Plodia interpunctella Hübner (Lepidoptera: Pyralidae). Single naïve females were allowed 6 h to forage in Plexiglas arenas with four different spatial arrangements of host eggs, nine single-egg patches), nine four-egg patches, 36 single-egg patches, and 36 four-egg patches. No significant differences were found among species in the number of patches parasitized. As expected, all three species parasitized the most eggs in the 36 four-egg patch treatment and the least in the nine single-egg patch treatment. T. deion parasitized significantly more eggs than T. pretiosum on the nine four-egg patches. T. ostriniae parasitized significantly more patches when intrapatch density was greater, regardless of interpatch density. In contrast, T. deion only parasitized more patches at the greater intrapatch density when the interpatch density was low. Patch density had no effect on T. pretiosum. The spatial pattern of parasitism was more aggregated for T. deion and T. ostriniae in the 36 four-egg patches treatment compared to the 36 single-egg patches treatment. Therefore, intrapatch density was more important than interpatch density for T. ostriniae, and potentially for T. deion, but not for T. pretiosum. T. deion may be the best candidate for augmentative biological control because it parasitized either slightly or significantly more eggs than the other two species in all four treatments. Furthermore, the pattern of parasitism by T. deion in the 36 four-egg patches treatment was the most aggregated among the three species, suggesting a more thorough searching pattern. In contrast, T. pretiosum had the least aggregated pattern of parasitism and therefore may have used a more

Capturing spatial heterogeneity of soil organic carbon under changing climate

Science.gov (United States)

Mishra, U.; Fan, Z.; Jastrow, J. D.; Matamala, R.; Vitharana, U.

2015-12-01

The spatial heterogeneity of the land surface affects water, energy, and greenhouse gas exchanges with the atmosphere. Designing observation networks that capture land surface spatial heterogeneity is a critical scientific challenge. Here, we present a geospatial approach to capture the existing spatial heterogeneity of soil organic carbon (SOC) stocks across Alaska, USA. We used the standard deviation of 556 georeferenced SOC profiles previously compiled in Mishra and Riley (2015, Biogeosciences, 12:3993-4004) to calculate the number of observations that would be needed to reliably estimate Alaskan SOC stocks. This analysis indicated that 906 randomly distributed observation sites would be needed to quantify the mean value of SOC stocks across Alaska at a confidence interval of ± 5 kg m-2. We then used soil-forming factors (climate, topography, land cover types, surficial geology) to identify the locations of appropriately distributed observation sites by using the conditioned Latin hypercube sampling approach. Spatial correlation and variogram analyses demonstrated that the spatial structures of soil-forming factors were adequately represented by these 906 sites. Using the spatial correlation length of existing SOC observations, we identified 484 new observation sites would be needed to provide the best estimate of the present status of SOC stocks in Alaska. We then used average decadal projections (2020-2099) of precipitation, temperature, and length of growing season for three representative concentration pathway (RCP 4.5, 6.0, and 8.5) scenarios of the Intergovernmental Panel on Climate Change to investigate whether the location of identified observation sites will shift/change under future climate. Our results showed 12-41 additional observation sites (depending on emission scenarios) will be required to capture the impact of projected climatic conditions by 2100 on the spatial heterogeneity of Alaskan SOC stocks. Our results represent an ideal distribution

On the Merging Cluster Abell 578 and Its Central Radio Galaxy 4C+67.13

Science.gov (United States)

Hagino, K.; Stawarz, Ł.; Siemiginowska, A.; Cheung, C. C.; Kozieł-Wierzbowska, D.; Szostek, A.; Madejski, G.; Harris, D. E.; Simionescu, A.; Takahashi, T.

2015-06-01

Here we analyze radio, optical, and X-ray data for the peculiar cluster Abell 578. This cluster is not fully relaxed and consists of two merging sub-systems. The brightest cluster galaxy (BCG), CGPG 0719.8+6704, is a pair of interacting ellipticals with projected separation ˜10 kpc, the brighter of which hosts the radio source 4C+67.13. The Fanaroff-Riley type-II radio morphology of 4C+67.13 is unusual for central radio galaxies in local Abell clusters. Our new optical spectroscopy revealed that both nuclei of the CGPG 0719.8+6704 pair are active, albeit at low accretion rates corresponding to the Eddington ratio ˜ {{10}-4} (for the estimated black hole masses of ˜ 3× {{10}8} {{M}⊙ } and ˜ {{10}9} {{M}⊙ }). The gathered X-ray (Chandra) data allowed us to confirm and to quantify robustly the previously noted elongation of the gaseous atmosphere in the dominant sub-cluster, as well as a large spatial offset (˜60 kpc projected) between the position of the BCG and the cluster center inferred from the modeling of the X-ray surface brightness distribution. Detailed analysis of the brightness profiles and temperature revealed also that the cluster gas in the vicinity of 4C+67.13 is compressed (by a factor of about ˜1.4) and heated (from ≃ 2.0 keV up to 2.7 keV), consistent with the presence of a weak shock (Mach number ˜1.3) driven by the expanding jet cocoon. This would then require the jet kinetic power of the order of ˜ {{10}45} erg s-1, implying either a very high efficiency of the jet production for the current accretion rate, or a highly modulated jet/accretion activity in the system. Based on service observations made with the WHT operated on the island of La Palma by the Isaac Newton Group in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias.

CONNECTION BETWEEN THE ACCRETION DISK AND JET IN THE RADIO GALAXY 3C 111

International Nuclear Information System (INIS)

Chatterjee, Ritaban; Marscher, Alan P.; Jorstad, Svetlana G.; Harrison, Brandon; Agudo, Ivan; Taylor, Brian W.; Markowitz, Alex; Rivers, Elizabeth; Rothschild, Richard E.; McHardy, Ian M.; Aller, Margo F.; Aller, Hugh D.; Laehteenmaeki, Anne; Tornikoski, Merja; Gomez, Jose L.; Gurwell, Mark

2011-01-01

We present the results of extensive multi-frequency monitoring of the radio galaxy 3C 111 between 2004 and 2010 at X-ray (2.4-10 keV), optical (R band), and radio (14.5, 37, and 230 GHz) wave bands, as well as multi-epoch imaging with the Very Long Baseline Array (VLBA) at 43 GHz. Over the six years of observation, significant dips in the X-ray light curve are followed by ejections of bright superluminal knots in the VLBA images. This shows a clear connection between the radiative state near the black hole, where the X-rays are produced, and events in the jet. The X-ray continuum flux and Fe line intensity are strongly correlated, with a time lag shorter than 90 days and consistent with zero. This implies that the Fe line is generated within 90 lt-day of the source of the X-ray continuum. The power spectral density function of X-ray variations contains a break, with a steeper slope at shorter timescales. The break timescale of 13 +12 -6 days is commensurate with scaling according to the mass of the central black hole based on observations of Seyfert galaxies and black hole X-ray binaries (BHXRBs). The data are consistent with the standard paradigm, in which the X-rays are predominantly produced by inverse Compton scattering of thermal optical/UV seed photons from the accretion disk by a distribution of hot electrons-the corona-situated near the disk. Most of the optical emission is generated in the accretion disk due to reprocessing of the X-ray emission. The relationships that we have uncovered between the accretion disk and the jet in 3C 111, as well as in the Fanaroff-Riley class I radio galaxy 3C 120 in a previous paper, support the paradigm that active galactic nuclei and Galactic BHXRBs are fundamentally similar, with characteristic time and size scales proportional to the mass of the central black hole.

ULTRA STEEP SPECTRUM RADIO SOURCES IN THE LOCKMAN HOLE: SERVS IDENTIFICATIONS AND REDSHIFT DISTRIBUTION AT THE FAINTEST RADIO FLUXES

Energy Technology Data Exchange (ETDEWEB)

Afonso, J.; Bizzocchi, L.; Grossi, M.; Messias, H.; Fernandes, C. A. C. [Observatorio Astronomico de Lisboa, Faculdade de Ciencias, Universidade de Lisboa, Tapada da Ajuda, 1349-018 Lisbon (Portugal); Ibar, E.; Ivison, R. J. [UK Astronomy Technology Centre, Royal Observatory, Edinburgh EH9 3HJ (United Kingdom); Simpson, C. [Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD (United Kingdom); Chapman, S.; Gonzalez-Solares, E. [Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA (United Kingdom); Jarvis, M. J. [Centre for Astrophysics, Science and Technology Research Institute, University of Hertfordshire, Hatfield, Herts AL10 9AB (United Kingdom); Rottgering, H. [Leiden Observatory, Leiden University, Oort Gebouw, P.O. Box 9513, 2300 RA Leiden (Netherlands); Norris, R. P. [CSIRO Astronomy and Space Science, P.O. Box 76, Epping, NSW 1710 (Australia); Dunlop, J.; Best, P. [SUPA, Institute for Astronomy, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ (United Kingdom); Pforr, J. [Institute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama Building, Burnaby Road, Portsmouth PO1 3FX (United Kingdom); Vaccari, M. [Department of Astronomy, University of Padova, vicolo Osservatorio 3, 35122 Padova (Italy); Seymour, N. [Mullard Space Science Laboratory, UCL, Holmbury St Mary, Dorking, Surrey RH5 6NT (United Kingdom); Farrah, D. [Astronomy Centre, Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH (United Kingdom); Huang, J.-S., E-mail: jafonso@oal.ul.pt [Department of Astrophysics, Oxford University, Keble Road, Oxford OX1 3RH (United Kingdom); and others

2011-12-20

Ultra steep spectrum (USS) radio sources have been successfully used to select powerful radio sources at high redshifts (z {approx}> 2). Typically restricted to large-sky surveys and relatively bright radio flux densities, it has gradually become possible to extend the USS search to sub-mJy levels, thanks to the recent appearance of sensitive low-frequency radio facilities. Here a first detailed analysis of the nature of the faintest USS sources is presented. By using Giant Metrewave Radio Telescope and Very Large Array radio observations of the Lockman Hole at 610 MHz and 1.4 GHz, a sample of 58 USS sources, with 610 MHz integrated fluxes above 100 {mu}Jy, is assembled. Deep infrared data at 3.6 and 4.5 {mu}m from the Spitzer Extragalactic Representative Volume Survey (SERVS) are used to reliably identify counterparts for 48 (83%) of these sources, showing an average total magnitude of [3.6]{sub AB} = 19.8 mag. Spectroscopic redshifts for 14 USS sources, together with photometric redshift estimates, improved by the use of the deep SERVS data, for a further 19 objects, show redshifts ranging from z = 0.1 to z = 2.8, peaking at z {approx} 0.6 and tailing off at high redshifts. The remaining 25 USS sources, with no redshift estimate, include the faintest [3.6] magnitudes, with 10 sources undetected at 3.6 and 4.5 {mu}m (typically [3.6] {approx}> 22-23 mag from local measurements), which suggests the likely existence of higher redshifts among the sub-mJy USS population. The comparison with the Square Kilometre Array Design Studies Simulated Skies models indicates that Fanaroff-Riley type I radio sources and radio-quiet active galactic nuclei may constitute the bulk of the faintest USS population, and raises the possibility that the high efficiency of the USS technique for the selection of high-redshift sources remains even at the sub-mJy level.

15th International Congress on Plasma Physics & 13th Latin American Workshop on Plasma Physics

Science.gov (United States)

Soto, Leopoldo

2014-05-01

invited peers. The criteria for review focused on the demand for a consistent research and the clear statement of results. Most of the articles received report the work of research groups where advanced students and young investigators are prominent. Thanks to their enthusiasm, we would like to express our appreciation to the authors. Previous to the ICPP-LAWPP 2010, an important activity associated to the Latin American Workshop on Plasma Physics took place. This activity was the LAWPP School on Plasma Physics, which was open to participants from over the world, providing basic training to students and young researchers. The School was attended by 44 participants and 6 lecturers from 11 different countries. All participants received economical assistance from the local organizing committee. The topics covered by the school were: general description of plasmas, space and astrophysical plasmas, plasma diagnostic techniques, high temperature and fusion plasmas, and low temperature and industrial plasmas. The organizers of the ICPP-LAWPP-2010 are grateful to the lectures of the LAWPP Plasma Physics School: Luis Felipe Delgado-Aparicio (USA), Homero Maciel (Brazil), and Marina Stepanova, J Alejandro Valdivia, Victor Muñoz, Felipe Veloso, Leopoldo Soto from Chile. On 27 February, 2010, one of the worst earthquakes in the recorded history of the world struck Chile. Although Santiago was affected little, the region located 200 km South of Santiago was seriously damaged. After this event, the local organizing committee received many messages from members of the plasma physics community around the world expressing their concern. The local organizing committee greatly appreciates the support of the participants from the entire world that decided to come to Chile and attend the Conference. Their solidarity is highly appreciated. During the celebration of the ICPP-LAWPP in Chile the two pioneers of plasma physics in Chile were affected by grave illness. Albeit that, Dr Hern

Combining pain therapy with lifestyle: the role of personalized nutrition and nutritional supplements according to the SIMPAR Feed Your Destiny approach

Directory of Open Access Journals (Sweden)

De Gregori M

2016-12-01

Full Text Available Manuela De Gregori,1–3 Carolina Muscoli,2,4,5 Michael E Schatman,2,6 Tiziana Stallone,2,7 Fabio Intelligente,2,8 Mariangela Rondanelli,2,9 Francesco Franceschi,2,10 Laura Isabel Arranz,2,11 Silvia Lorente-Cebrián,2,12 Maurizio Salamone,2,13,14 Sara Ilari,2,5 Inna Belfer,2,15 Massimo Allegri2,16,17 1Pain Therapy Service, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy; 2Study in Multidisciplinary Pain Research Group, 3Young Against Pain Group, Parma, Italy; 4Department of Health Sciences, Institute of Research for Food Safety and Health, University “Magna Graecia” of Catanzaro, Parma, Italy; 5IRCCS San Raffaele Pisana, Roccelletta di Borgia, Catanzaro, Italy; 6US Pain Foundation, Bellevue, WA, USA; 7ENPAB, Rome, 8Chronic Pain Service Anestesia Day-Surgery, IRCCS Humanitas Research Hospital, Rozzano, 9Department of Public Health, Section of Human Nutrition and Dietetics, Azienda di Servizi alla Persona di Pavia, University of Pavia, Pavia, 10Institute of Internal Medicine, Catholic University of Rome, Rome, Italy; 11Department of Nutrition, Food Sciences and Gastronomy, University of Barcelona, Barcelona, 12Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, Pamplona, Spain; 13Metagenics Italia srl, Milano, 14Italian Lifestyle Medicine Association, Bari, Italy; 15Faculty of Dentistry, McGill University, Montreal, QC, Canada; 16Department of Surgical Sciences, University of Parma, 17Anesthesia, Intensive Care and Pain Therapy Service, Azienda Ospedaliero, Universitaria of Parma, Parma, Italy Abstract: Recently, attention to the lifestyle of patients has been rapidly increasing in the field of pain therapy, particularly with regard to the role of nutrition in pain development and its management. In this review, we summarize the latest findings on the role of nutrition and nutraceuticals, microbiome, obesity, soy, omega-3 fatty acids, and curcumin supplementation as key elements in

Proceedings - II Nanosciesce and Nanotecnology Biomedicals Symposium

Directory of Open Access Journals (Sweden)

Luís Monteiro Rodrigues et al

2013-06-01

Full Text Available Programa Open Session | Sessão de abertura Pres. do Conselho de Admin. do INFARMED, Dr. Eurico Castro Alves Pres. do Conselho de Admin. da Univ Lusófona, Manuel de A. Damásio Diretor da Escola de Ciências e Tecnologias da Saúde Luís Monteiro Rodrigues (Presidente do Simpósio Presidente da Sociedade Portuguesa de Ciências em Animais de Laboratório, Isabel V. Figueiredo 1st Session |Sessão 1 Nanomedicine: past and future | Nanomedicina: passado e futuro Chairman | Moderador - João Nuno Moreira Speakers | Prelectores C.01 - Liposomes technology platform for clinical applications Lipossomas com aplicações clínicas Manuela Gaspar C.02 - The nanotechnology applied to the field of regenerative medicine: a big contribute at the nanoscale A nanotecnologia aplicada à medicina regenerativa: um grande contributo para a nanoescala Ana Paula Pêgo C.03 - Perspectives in solid lipid nanoparticles development Perspectivas no desenvolvimento de nanopartículas sólidas lipídicas Slamovira Doktorovova 1st Session (continuation | Sessão 1 (continuação Nanomedicine: past and future | Nanomedicina: presente e futuro Chairman | Moderador - Helena Florindo Speakers | Prelectores C.04 - Oral delivery of insulin A administração oral de insulina Philippe Maincent C.05 - Targeted nano-oncologicals to battle cancer Nanoprodutos direccionados ao tratamento do cancro Maria Fuente C.06 - Polysaccharide-based nanoparticles: useful tools in transmucosal nano drug delivery Ana Grenha 2st Session | Sessão 2 Biomedical nanotechnologies | Nanotecnologias biomédicas Chairman | Moderador - António Almeida Speakers | Prelectores C.07 - Development of a new approach to the periodontal regeneration Desenvolvimento de uma nova abordagem para a regeneração periodontal Carlos Viegas C.08 - The path from milli through micro to nano: Does size matter in the encapsulation and delivery of bioactive therapeutics? Transição da escala micro para nano: o tamanho importa

From micro- to nanostructured implantable device for local anesthetic delivery

Directory of Open Access Journals (Sweden)

Zorzetto L

2016-06-01

Full Text Available Laura Zorzetto,1 Paola Brambilla,1 Elena Marcello,1 Nora Bloise,2 Manuela De Gregori,3 Lorenzo Cobianchi,4,5 Andrea Peloso,4,5 Massimo Allegri,6 Livia Visai,2,7 Paola Petrini1 1Department of Chemistry, Materials and Chemical Engineering ‘G. Natta’, Politecnico di Milano, Milan, 2Department of Molecular Medicine, Centre for Health Technologies (CHT, INSTM UdR of Pavia, University of Pavia, 3Pain Therapy Service, IRCCS Foundation Policlinico San Matteo Pavia, Pavia, 4General Surgery Department, IRCCS Foundation Policlinico San Matteo, Pavia, 5Departments of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, 6Department of Surgical Sciences, University of Parma, Parma, 7Department of Occupational Medicine, Toxicology and Environmental Risks, S. Maugeri Foundation, IRCCS, Lab of Nanotechnology, Pavia, Italy Abstract: Local anesthetics block the transmission of painful stimuli to the brain by acting on ion channels of nociceptor fibers, and find application in the management of acute and chronic pain. Despite the key role they play in modern medicine, their cardio and neurotoxicity (together with their short half-life stress the need for developing implantable devices for tailored local drug release, with the aim of counterbalancing their side effects and prolonging their pharmacological activity. This review discusses the evolution of the physical forms of local anesthetic delivery systems during the past decades. Depending on the use of different biocompatible materials (degradable polyesters, thermosensitive hydrogels, and liposomes and hydrogels from natural polymers and manufacturing processes, these systems can be classified as films or micro- or nanostructured devices. We analyze and summarize the production techniques according to this classification, focusing on their relative advantages and disadvantages. The most relevant trend reported in this work highlights the effort of moving from microstructured

Safety profile of solid lipid nanoparticles loaded with rosmarinic acid for oral use: in vitro and animal approaches

Directory of Open Access Journals (Sweden)

Madureira AR

2016-08-01

Full Text Available Ana Raquel Madureira,1 Sara Nunes,2 Débora A Campos,1 João C Fernandes,2 Cláudia Marques,3 Monica Zuzarte,2 Beatriz Gullón,1 Luís M Rodríguez-Alcalá,1 Conceição Calhau,3,4 Bruno Sarmento,5–7 Ana Maria Gomes,1 Maria Manuela Pintado,1 Flávio Reis2 1Catholic University of Portugal, CBQF – Center for Biotechnology and Fine Chemistry – Associate Laboratory, Faculty of Biotechnology, Porto, Portugal; 2Laboratory of Pharmacology and Experimental Therapeutics, Institute for Biomedical Imaging and Life Sciences (IBILI, Faculty of Medicine, and CNC.IBILI Consortium, University of Coimbra, Coimbra, Portugal; 3Department of Biochemistry, Faculty of Medicine, University of Porto, Porto, Portugal; 4Center for Health Technology and Services Research (CINTESIS, Porto, Portugal; 5Department of Pharmaceutical Sciences, Institute of Health Sciences-North, CESPU, Gandra, Portugal; 6“I3S” Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal; 7INEB, Institute of Biomedical Engineering, University of Porto, Porto, Portugal Abstract: Rosmarinic acid (RA possesses several protective bioactivities that have attracted increasing interest by nutraceutical/pharmaceutical industries. Considering the reduced bioavailability after oral use, effective (and safe delivery systems are crucial to protect RA from gastrointestinal degradation. This study aims to characterize the safety profile of solid lipid nanoparticles produced with Witepsol and Carnauba waxes and loaded with RA, using in vitro and in vivo approaches, focused on genotoxicity and cytotoxicity assays, redox status markers, hematological and biochemical profile, liver and kidney function, gut bacterial microbiota, and fecal fatty acids composition. Free RA and sage extract, empty nanoparticles, or nanoparticles loaded with RA or sage extract (0.15 and 1.5 mg/mL were evaluated for cell (lymphocytes viability, necrosis and apoptosis, and antioxidant

Estudo preliminar do controle biológico da traça-do-tomateiro com o parasitóide Trichogramma pretiosum em ambientes protegidos A preliminar survey on the biological control of South American tomato pinworm with the parasitoid Trichogramma pretiosum in greenhouse models

Directory of Open Access Journals (Sweden)

Maria Alice de Medeiros

2009-03-01

Full Text Available O cultivo de tomate em ambiente protegido é economicamente vantajoso para os produtores. No entanto, o ambiente interno da casa de vegetação, quente e seco, favorece o crescimento populacional da traça-do-tomateiro Tuta absoluta (Meyrick dificultando seu controle, geralmente realizado com inseticidas químicos. O controle biológico da traça-do-tomateiro utilizando o parasitóide Trichogramma pretiosum Riley é indicado como método alternativo aos inseticidas e foi avaliado em ambiente protegido. O experimento foi conduzido com plantas de tomateiro tutoradas, cv. Larissa, em três modelos de casas de vegetação (arco, capela e convectivo, com 288 plantas em uma área de 160 m² em cada modelo. Todos os tratamentos foram associados com uma aplicação semanal do inseticida biológico Bacillus thuringiensis e liberações semanais do parasitóide: 1 casa de vegetação com teto convectivo: 200 cm² de ovos parasitados em liberação única, ou seja, apenas uma vez por semana; 2 teto em arco: 200 cm² de ovos parasitados liberados duas vezes por semana, ou seja, 100 cm² a cada liberação; 3 capela: 400 cm² de ovos parasitados liberados duas vezes por semana, ou seja, 200 cm² a cada liberação. A população da traça-do-tomateiro foi amostrada semanalmente, coletando-se 50 folíolos de tomateiro ao acaso, em cada casa de vegetação. Em laboratório, os ovos foram contados, individualizados e mantidos em câmara climatizada para se determinar o número de larvas emergidas e o número de ovos parasitados. A produtividade e o dano causado pela traça foram avaliados em 50 frutos colhidos ao acaso em cada tratamento. A eficiência técnica e econômica do sistema de produção foi analisada em cada modelo de casa de vegetação. Os principais resultados foram: a as diferentes condições de temperatura e umidade proporcionadas pelas casas de vegetação têm influência sobre o desempenho do parasitóide; b o uso exclusivo do controle biol

Kinematics, mechanics, and potential earthquake hazards for faults in Pottawatomie County, Kansas, USA

Science.gov (United States)

Ohlmacher, G.C.; Berendsen, P.

2005-01-01

Many stable continental regions have subregions with poorly defined earthquake hazards. Analysis of minor structures (folds and faults) in these subregions can improve our understanding of the tectonics and earthquake hazards. Detailed structural mapping in Pottawatomie County has revealed a suite consisting of two uplifted blocks aligned along a northeast trend and surrounded by faults. The first uplift is located southwest of the second. The northwest and southeast sides of these uplifts are bounded by northeast-trending right-lateral faults. To the east, both uplifts are bounded by north-trending reverse faults, and the first uplift is bounded by a north-trending high-angle fault to the west. The structural suite occurs above a basement fault that is part of a series of north-northeast-trending faults that delineate the Humboldt Fault Zone of eastern Kansas, an integral part of the Midcontinent Rift System. The favored kinematic model is a contractional stepover (push-up) between echelon strike-slip faults. Mechanical modeling using the boundary element method supports the interpretation of the uplifts as contractional stepovers and indicates that an approximately east-northeast maximum compressive stress trajectory is responsible for the formation of the structural suite. This stress trajectory suggests potential activity during the Laramide Orogeny, which agrees with the age of kimberlite emplacement in adjacent Riley County. The current stress field in Kansas has a N85??W maximum compressive stress trajectory that could potentially produce earthquakes along the basement faults. Several epicenters of seismic events (

The impact of anxiety and catastrophizing on interleukin-6 responses to acute painful stress

Directory of Open Access Journals (Sweden)

Lazaridou A

2018-03-01

Full Text Available Asimina Lazaridou,1 Marc O Martel,1 Christine M Cahalan,1 Marise C Cornelius,1 Olivia Franceschelli,1 Claudia M Campbell,2 Jennifer A Haythornthwaite,2 Michael Smith,2 Joseph Riley,3 Robert R Edwards1 1Department of Anesthesiology, Harvard Medical School, Brigham & Women’s Hospital, Boston, MA, USA; 2Department of Psychiatry and Behavioral Sciences, School of Medicine, Johns Hopkins University, Baltimore, MD, USA; 3Department of Community Dentistry and Behavioral Science, College of Dentistry, University of Florida, Gainesville, FL, USA Objective: To examine the influence of anxiety and pain-related catastrophizing on the time course of acute interleukin-6 (IL-6 responses to standardized noxious stimulation among patients with chronic pain.Methods: Data were collected from 48 participants in the following demographically matched groups: patients with chronic pain (n=36 and healthy controls (n=12. Participants underwent a series of Quantitative Sensory Testing (QST procedures assessing responses to mechanical and thermal stimuli during two separate visits, in a randomized order. One visit consisted of standard, moderately painful QST procedures, while the other visit involved nonpainful analogs to these testing procedures. Blood samples were taken at baseline, and then for up to 2 hours after QST in order to study the time course of IL-6 responses.Results: Results of multilevel analyses revealed that IL-6 responses increased across assessment time points in both visits (p<0.001. While patients with chronic pain and healthy controls did not differ in the magnitude of IL-6 responses, psychological factors influenced IL-6 trajectories only in the chronic pain group. Among patients, increases in catastrophizing over the course of the QST session were associated with elevated IL-6 responses only during the painful QST session (p<0.05. When controlling for anxiety, results indicated that the main multilevel model among patients remained significant

Sixteenth workshop on geothermal reservoir engineering: Proceedings

Energy Technology Data Exchange (ETDEWEB)

Ramey, H.J. Jr.; Kruger, P.; Miller, F.G.; Horne, R.N.; Brigham, W.E.; Cook, J.W. (Stanford Geothermal Program)

1991-01-25

produces the Proceedings Volumes for publication. We owe a great deal of thanks to our students who operate the audiovisual equipment and to Michael Riley who coordinated the meeting arrangements for a second year. Henry J. Ramey, Jr. Roland N. Horne Frank G. Miller Paul Kruger William E. Brigham Jean W. Cook

O Conhecimento de diferenças raciais pode evitar reações idiossincrásicas na anestesia? El conocimiento de diferencias raciales puede evitar reacciones idiosincrásicas en la anestesia? Could the understanding of racial differences prevent idiosyncratic anesthetic reactions?

Directory of Open Access Journals (Sweden)

Nilton Bezerra do Vale

2003-04-01

Full Text Available JUSTIFICATIVA E OBJETIVOS: No campo da variabilidade inter-étnica da resposta de drogas anestésicas e adjuvantes existem várias questões sem resposta. Estamos na iminência de sermos capazes de identificar diferenças raciais herdadas que podem prever a resposta de cada paciente aos anestésicos pelo atual desenvolvimento farmacogenético. CONTEÚDO: O conhecimento de fatores inter-étnicos que alteram a resposta à droga permitirá ao anestesiologista evitar reações idiossincrásicas: (1 Branco caucasiano - aumento do efeito diurético da dopamina; apnéia prolongada após succinilcolina ou mivacúrio; arritmias cardíacas após uso de halotano e catecolaminas na síndrome de Riley-Day; ataques agudos de porfiria após tiopental. (2 Negro americano: diferentes abordagens terapêuticas, hipertensão arterial essencial advêm da pior resposta aos anti-hipertensivos de IECA, inibidores do AT1, bloqueadores beta e à clonidina, contrastando com a melhor resposta anti-hipertensiva dos diuréticos, antagonistas de canais de cálcio e clarvedilol; ação vasodilatadora atenuada do isoproterenol (beta2 e uma maior resposta vasodilatadora à nitroglicerina sublingual; menor ação fibrinolítica do t-PA; recuperação mais lenta da anestesia venosa pela associação de remifentanil e propofol; menor glicuronidação do paracetamol e menos analgesia da codeína nos fracos metabolizadores (CYP2D6; a melanina retarda o início da analgesia epidérmica do creme anestésico EMLA; menor midríase pela adrenalina; maior broncoespasmo à metacolina em crianças asmáticas; deficit da G-6-PD nas hemácias eleva o risco de hemólise a drogas oxidativas (10% da população negra. (3 Asiáticos: alterações cinéticas tóxicas da meperidina e codeína; maior duração da ansiólise do diazepam; espasmo coronariano pela injeção de metilergonovina no pós-parto; inter-relação do receptor GABA, das desidrogenases e do comportamento de beber nip

Rapid and Accurate Behavioral Health Diagnostic Screening: Initial Validation Study of a Web-Based, Self-Report Tool (the SAGE-SR).

Science.gov (United States)

Brodey, Benjamin; Purcell, Susan E; Rhea, Karen; Maier, Philip; First, Michael; Zweede, Lisa; Sinisterra, Manuela; Nunn, M Brad; Austin, Marie-Paule; Brodey, Inger S

2018-03-23

diagnoses. These 664 items were iteratively submitted to 3 rounds of cognitive interviewing with 50 community mental health center participants; the expert panel reviewed session summaries and agreed on a final set of 661 clear and concise self-report items representing the desired criteria in the DSM-5. The SAGE-SR constructed from this item pool took an average of 14 min to complete in a nonclinical sample versus 24 min in a clinical sample. Responses to individual items can be combined to generate DSM criteria endorsements and differential diagnoses, as well as provide indices of individual symptom severity. Preliminary measures of test-retest reliability in a small, nonclinical sample were promising, with good to excellent reliability for screener items in 11 of 13 diagnostic screening modules (intraclass correlation coefficient [ICC] or kappa coefficients ranging from .60 to .90), with mania achieving fair test-retest reliability (ICC=.50) and other substance use endorsed too infrequently for analysis. The SAGE-SR is a computerized adaptive self-report instrument designed to provide rigorous differential diagnostic information to clinicians. ©Benjamin Brodey, Susan E Purcell, Karen Rhea, Philip Maier, Michael First, Lisa Zweede, Manuela Sinisterra, M Brad Nunn, Marie-Paule Austin, Inger S Brodey. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 23.03.2018.

Interpreting patient-reported outcomes from clinical trials in COPD: a discussion

Directory of Open Access Journals (Sweden)

Jones PW

2016-12-01

Full Text Available Paul W Jones,1,2 Stephen Rennard,3,4 Maggie Tabberer,5 John H Riley,2 Mitra Vahdati-Bolouri,2 Neil C Barnes2,6 1Institute for Infection and Immunity, University of London, London, 2Global Respiratory Franchise, GlaxoSmithKline, Uxbridge, UK; 3Division of Pulmonary, Critical Care, Sleep and Allergy, Nebraska Medical Center, Omaha, NE, USA; 4Clinical Discovery Unit, AstraZeneca, Cambridge, 5Global R&D, GlaxoSmithKline, Uxbridge, 6William Harvey Institute, Bart’s and the London School of Medicine and Dentistry, London, UK Abstract: One of the challenges faced by the practising physician is the interpretation of patient-reported outcomes (PROs in clinical trials and the relevance of such data to their patients. This is especially true when caring for patients with progressive diseases such as COPD. In an attempt to incorporate the patient perspective, many clinical trials now include assessments of PROs. These are formalized methods of capturing patient-centered information. Given the importance of PROs in evaluating the potential utility of an intervention for a patient with COPD, it is important that physicians are able to critically interpret (and critique the results derived from them. Therefore, in this paper, a series of questions is posed for the practising physician to consider when reviewing the treatment effectiveness as assessed by PROs. The focus is on the St George’s Respiratory Questionnaire for worked examples, but the principles apply equally to other symptom-based questionnaires. A number of different ways of presenting PRO data are discussed, including the concept of the minimum clinically important difference, whether there is a ceiling effect to PRO results, and the strengths and weaknesses of responder analyses. Using a worked example, the value of including a placebo arm in a study is illustrated, and the influence of the study on PRO results is considered, in terms of the design, patient withdrawal, and the selection of

Zimbabwe's Human Resources for health Information System (ZHRIS)-an assessment in the context of establishing a global standard.

Science.gov (United States)

Waters, Keith P; Zuber, Alexandra; Simbini, Tungamirirai; Bangani, Zwashe; Krishnamurthy, Ramesh S

2017-04-01

There have been numerous global calls to action to utilize human resources information systems (HRIS) to improve the availability and quality of data for strengthening the regulation and deployment of health workers. However, with no normative guidance in existence, the development of HRIS has been inconsistent and lacking in standardization, hindering the availability and use of data for health workforce planning and decision making (Riley et al., 2012). CDC and WHO partnered with the Ministry of Health in several countries to conduct HRIS functional requirements analyses and establish a Minimum Data Set (MDS) of elements essential for a global standard HRIS. As a next step, CDC advanced a study to examine the alignment of one of the HRIS it supports (in Zimbabwe) against this MDS. For this study, we created a new data collection and analysis tool to assess the extent to which Zimbabwe's CDC-supported HRIS was aligned with the WHO MDS. We performed systematic "gap analyses" in order to make prioritized recommendations for addressing the gaps, with the aim of improving the availability and quality of data on Zimbabwe's health workforce. The majority of the data elements outlined in the WHO MDS were present in the ZHRIS databases, though they were found to be missing various applicable elements. The lack of certain elements could impede functions such as health worker credential verification or equitable in-service training allocation. While the HRIS MDS treats all elements equally, our assessment revealed that not all the elements have equal significance when it comes to data utilization. Further, some of the HRIS MDS elements exceeded the current needs of regulatory bodies and the Ministry of Health and Child Care (MOHCC) in Zimbabwe. The preliminary findings of this study helped inspire the development of a more recent HRH Registry MDS subset, which is a shorter list of priority data elements recommended as a global standard for HRIS. The field-tested assessment

Intracellular interactions of umeclidinium and vilanterol in human airway smooth muscle

Directory of Open Access Journals (Sweden)

Shaikh N

2017-06-01

Full Text Available Nooreen Shaikh,1,2 Malcolm Johnson,3 David A Hall,4 Kian Fan Chung,1,2 John H Riley,3 Sally Worsley,5 Pankaj K Bhavsar1,2 1Experimental Studies, National Heart and Lung Institute, Imperial College London, 2Biomedical Research Unit, Royal Brompton and Harefield NHS Trust, London, 3Respiratory Global Franchise, GlaxoSmithKline, Uxbridge, 4Fibrosis and Lung Injury Development Planning Unit, GlaxoSmithKline, Stevenage, 5Respiratory Research & Development, GlaxoSmithKline, Uxbridge, UK Background: Intracellular mechanisms of action of umeclidinium (UMEC, a long-acting muscarinic receptor antagonist, and vilanterol (VI, a long-acting β2-adrenoceptor (β2R agonist, were investigated in target cells: human airway smooth-muscle cells (ASMCs. Materials and methods: ASMCs from tracheas of healthy lung-transplant donors were treated with VI, UMEC, UMEC and VI combined, or control compounds (salmeterol, propranolol, ICI 118.551, or methacholine [MCh]. Cyclic adenosine monophosphate (cAMP was measured using an enzyme-linked immunosorbent assay, intracellular free calcium ([Ca2+]i using a fluorescence assay, and regulator of G-protein signaling 2 (RGS2 messenger RNA using real-time quantitative polymerase chain reaction. Results: VI and salmeterol (10–12–10–6 M induced cAMP production from ASMCs in a concentration-dependent manner, which was greater for VI at all concentrations. β2R antagonism by propranolol or ICI 118.551 (10–12–10–4 M resulted in concentration-dependent inhibition of VI-induced cAMP production, and ICI 118.551 was more potent. MCh (5×10–6 M, 30 minutes attenuated VI-induced cAMP production (P<0.05, whereas pretreatment with UMEC (10–8 M, 1 hour restored the magnitude of VI-induced cAMP production. ASMC stimulation with MCh (10–11–5×10–6 M resulted in a concentration-dependent increase in [Ca2+]i, which was attenuated with UMEC pretreatment. Reduction of MCh-induced [Ca2+]i release was greater with UMEC + VI versus

Natural ventilation for the prevention of airborne contagion.

Science.gov (United States)

Escombe, A Roderick; Oeser, Clarissa C; Gilman, Robert H; Navincopa, Marcos; Ticona, Eduardo; Pan, William; Martínez, Carlos; Chacaltana, Jesus; Rodríguez, Richard; Moore, David A J; Friedland, Jon S; Evans, Carlton A

2007-02-01

Institutional transmission of airborne infections such as tuberculosis (TB) is an important public health problem, especially in resource-limited settings where protective measures such as negative-pressure isolation rooms are difficult to implement. Natural ventilation may offer a low-cost alternative. Our objective was to investigate the rates, determinants, and effects of natural ventilation in health care settings. The study was carried out in eight hospitals in Lima, Peru; five were hospitals of "old-fashioned" design built pre-1950, and three of "modern" design, built 1970-1990. In these hospitals 70 naturally ventilated clinical rooms where infectious patients are likely to be encountered were studied. These included respiratory isolation rooms, TB wards, respiratory wards, general medical wards, outpatient consulting rooms, waiting rooms, and emergency departments. These rooms were compared with 12 mechanically ventilated negative-pressure respiratory isolation rooms built post-2000. Ventilation was measured using a carbon dioxide tracer gas technique in 368 experiments. Architectural and environmental variables were measured. For each experiment, infection risk was estimated for TB exposure using the Wells-Riley model of airborne infection. We found that opening windows and doors provided median ventilation of 28 air changes/hour (ACH), more than double that of mechanically ventilated negative-pressure rooms ventilated at the 12 ACH recommended for high-risk areas, and 18 times that with windows and doors closed (p ventilation than modern naturally ventilated rooms (40 versus 17 ACH; p natural ventilation exceeded mechanical (p ventilated rooms 39% of susceptible individuals would become infected following 24 h of exposure to untreated TB patients of infectiousness characterised in a well-documented outbreak. This infection rate compared with 33% in modern and 11% in pre-1950 naturally ventilated facilities with windows and doors open. Opening windows and

Spondylolysis of C-2 in children 3 years of age or younger: clinical presentation, radiographic findings, management, and outcomes with a minimum 12-month follow-up.

Science.gov (United States)

Gressot, Loyola V; Vadivelu, Sudhakar; Hwang, Steven W; Fulkerson, Daniel H; Luerssen, Thomas G; Jea, Andrew

2014-02-01

Cervical spondylolysis is a rare condition that results from a pars interarticularis defect. The C-6 level is the most frequently involved site in the cervical spine. Its clinical presentations range from incidental radiographic findings to neck pain and, rarely, neurological deficits. Although 150 patients with subaxial cervical spondylolysis have been reported, a mere 24 adult and pediatric patients with C-2 spondylolysis have been described. The long-term outcomes of very young children with bilateral C-2 spondylolysis are of great interest, yet only a few longitudinal studies exist. The authors retrospectively reviewed 5 cases of bilateral C-2 spondylolysis at Texas Children's Hospital and Riley Children's Hospital; these were combined with 5 other cases in the literature, yielding a total of 10 patients. Data regarding the patients' age, sex, C2-3 angulation and displacement, associated spine anomalies, neurological deficits, treatment, and most recent follow-up were recorded. The patients' ages ranged from 3 to 36 months (mean 12.9 months). There were 6 boys and 4 girls. The C2-3 angulation, displacement, and width of pars defect were measured when available. The mean C2-3 angulation was 9.5° (range 1-34°), the mean C2-3 displacement was 4.78 mm (range 1.1-10.8 mm), and the mean width of the pars defect was 4.16 mm (range 0.9-7 mm). One patient developed myelopathy and spinal cord injury. All 10 of the patients were treated initially with conservative therapy: 3 with close observation alone, 1 with a rigid cervical collar, 4 with a Minerva jacket, 1 with a sternal-occipital-mandibular immobilizer, and 1 with a halo vest. Three patients ultimately underwent surgery for internal fixation due to progressive instability or development of neurological symptoms. All patients were neurologically intact at the last follow-up (mean 44.3 months, range 14-120 months). Based on the literature and the authors' own experience, they conclude that most very young children

Geochemical Tracing of Potential Hydraulic Connections between Groundwater and Run-Off Water in Northeastern Kansas, USA

Directory of Open Access Journals (Sweden)

Norbert Clauer

2017-11-01

Full Text Available This study is focused on establishing the extent of potential hydraulic connections of local lowland aquifers with the run-off waters of a nearby creek and two major rivers in and around Fort Riley in northeastern Kansas, USA. It is based on collective evidence by combining the contents of several major and trace elements of the waters with their oxygen, hydrogen and Sr isotopic compositions. The area of investigation is located a few miles to the west of the Kansas Konza Prairie, which is a United States designated site for regular monitoring of ecological and environmental configurations. The δ18O and δD of the run-off waters from the two rivers and the creek, and of the ground waters from local aquifers are almost identical. Relative to the General Meteoric Water Line, the δ18O-δD data have a tendency to deviate towards relatively lower δ18O values, as do generally the sub-surface waters of intra-continental basins. The observed stable isotope compositions for these waters preclude any significant impact by either an evapo-transpiration process by the vegetation, or an interaction with immediate mineral-rock matrices. The 87Sr/86Sr ratios of the aquifer waters collected from wells close to the Kansas River were markedly different from those of the river waters, confirming a lack of hydraulic interactions between the aquifers and the river. On the contrary, ground waters from wells at a relative distance from the Kansas River have 87Sr/86Sr ratios, Sr contents and Sr/Ca ratios that are similar to those of the river water, suggesting a hydraulic connection between these aquifers and the river, as well as a lack of any impact of the vegetation. An underground water supply from nearby Summer Hill located to the north of the study area has also been detected, except for its western border where no interactions occurred apparently between the aquifer waters and the reservoir rocks, or with the creek and river waters. The 87Sr/86Sr signatures

Digital Health Intervention for Asthma: Patient-Reported Value and Usability.

Science.gov (United States)

Merchant, Rajan; Inamdar, Rubina; Henderson, Kelly; Barrett, Meredith; Su, Jason G; Riley, Jesika; Van Sickle, David; Stempel, David

2018-06-04

more likely to take the survey. Electronic sensors and a digital health platform were well received by participants who reported satisfaction and perceived value. These results were consistent across multiple participants' characteristics. These findings can add to a limited literature to keep improving digital health interventions and ensure the meaningful and enduring impact on patient outcomes. ©Rajan Merchant, Rubina Inamdar, Kelly Henderson, Meredith Barrett, Jason G Su, Jesika Riley, David Van Sickle, David Stempel. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 04.06.2018.

Exploring the Measurement Properties of the eHealth Literacy Scale (eHEALS) Among Baby Boomers: A Multinational Test of Measurement Invariance.

Science.gov (United States)

Sudbury-Riley, Lynn; FitzPatrick, Mary; Schulz, Peter J

2017-02-27

random samples drawn from an increasingly important cohort. The results give increased confidence to researchers using the scale in a range of eHealth assessment applications from primary care to health promotions. ©Lynn Sudbury-Riley, Mary FitzPatrick, Peter J Schulz. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 27.02.2017.

Home-Based HIV Testing and Counseling for Male Couples (Project Nexus): A Protocol for a Randomized Controlled Trial.

Science.gov (United States)

Stephenson, Rob; Freeland, Ryan; Sullivan, Stephen P; Riley, Erin; Johnson, Brent A; Mitchell, Jason; McFarland, Deborah; Sullivan, Patrick S

2017-05-30

discrimination associated with HIV and/or sexuality). ClinicalTrials.gov NCT02335138; https://clinicaltrials.gov/ct2/show/NCT02335138 (Archived by WebCite at http://www.webcitation.org/6qHxtNIdW). ©Rob Stephenson, Ryan Freeland, Stephen P Sullivan, Erin Riley, Brent A Johnson, Jason Mitchell, Deborah McFarland, Patrick S Sullivan. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 30.05.2017.

On the interaction of the PKS B1358–113 radio galaxy with the A1836 cluster

Energy Technology Data Exchange (ETDEWEB)

Stawarz, Ł.; Simionescu, A.; Hagino, K. [Institute of Space and Astronautical Science, JAXA, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210 (Japan); Szostek, A.; Kozieł-Wierzbowska, D.; Ostrowski, M. [Astronomical Observatory, Jagiellonian University, ulica Orla 171, 30-244 Kraków (Poland); Cheung, C. C. [Space Science Division, Naval Research Laboratory, Washington, DC 20375 (United States); Siemiginowska, A.; Harris, D. E. [Harvard Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Werner, N. [KIPAC, Stanford University, 452 Lomita Mall, Stanford, CA 94305 (United States); Madejski, G. [W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, CA 94305 (United States); Begelman, M. C., E-mail: stawarz@astro.isas.jaxa.jp [JILA, University of Colorado and National Institute of Standards and Technology, 440 UCB, Boulder, CO 80309-0440 (United States)

2014-10-20

Here we present the analysis of multifrequency data gathered for the Fanaroff-Riley type-II (FR II) radio galaxy PKS B1358-113, hosted in the brightest cluster galaxy in the center of A1836. The galaxy harbors one of the most massive black holes known to date, and our analysis of the acquired optical data reveals that this black hole is only weakly active, with a mass accretion rate M-dot {sub acc}∼2×10{sup −4} M-dot {sub Edd}∼0.02 M{sub ⊙} yr{sup –1}. Based on analysis of new Chandra and XMM-Newton X-ray observations and archival radio data, and assuming the well-established model for the evolution of FR II radio galaxies, we derive the preferred range for the jet kinetic luminosity L {sub j} ∼ (1-6) × 10{sup –3} L {sub Edd} ∼ (0.5-3) × 10{sup 45} erg s{sup –1}. This is above the values implied by various scaling relations proposed for radio sources in galaxy clusters, being instead very close to the maximum jet power allowed for the given accretion rate. We also constrain the radio source lifetime as τ{sub j} ∼ 40-70 Myr, meaning the total amount of deposited jet energy E {sub tot} ∼ (2-8) × 10{sup 60} erg. We argue that approximately half of this energy goes into shock heating of the surrounding thermal gas, and the remaining 50% is deposited into the internal energy of the jet cavity. The detailed analysis of the X-ray data provides indication for the presence of a bow shock driven by the expanding radio lobes into the A1836 cluster environment. We derive the corresponding shock Mach number in the range M{sub sh}∼2--4, which is one of the highest claimed for clusters or groups of galaxies. This, together with the recently growing evidence that powerful FR II radio galaxies may not be uncommon in the centers of clusters at higher redshifts, supports the idea that jet-induced shock heating may indeed play an important role in shaping the properties of clusters, galaxy groups, and galaxies in formation. In this context, we speculate on

VLBA AND CHANDRA OBSERVATIONS OF JETS IN FRI RADIO GALAXIES: CONSTRAINTS ON JET EVOLUTION

International Nuclear Information System (INIS)

Kharb, P.; O'Dea, C. P.; Tilak, A.; Baum, S. A.; Haynes, E.; Noel-Storr, J.; Fallon, C.; Christiansen, K.

2012-01-01

We present here the results from new Very Long Baseline Array (VLBA) observations at 1.6 and 5 GHz of 19 galaxies of a complete sample of 21 Uppasala General Catalog (UGC) Fanaroff-Riley type I (FRI) radio galaxies. New Chandra data of two sources, viz., UGC 00408 and UGC 08433, are combined with the Chandra archival data of 13 sources. The 5 GHz observations of 10 'core-jet' sources are polarization-sensitive, while the 1.6 GHz observations constitute second-epoch total intensity observations of nine 'core-only' sources. Polarized emission is detected in the jets of seven sources at 5 GHz, but the cores are essentially unpolarized, except in M87. Polarization is detected at the jet edges in several sources, and the inferred magnetic field is primarily aligned with the jet direction. This could be indicative of magnetic field 'shearing' due to jet-medium interaction, or the presence of helical magnetic fields. The jet peak intensity I ν falls with distance d from the core, following the relation, I ν ∝d a , where a is typically ∼ – 1.5. Assuming that adiabatic expansion losses are primarily responsible for the jet intensity 'dimming,' two limiting cases are considered: (1) the jet has a constant speed on parsec scales and is expanding gradually such that the jet radius r∝d 0 .4 ; this expansion is, however, unobservable in the laterally unresolved jets at 5 GHz, and (2) the jet is cylindrical and is accelerating on parsec scales. Accelerating parsec-scale jets are consistent with the phenomenon of 'magnetic driving' in Poynting-flux-dominated jets. While slow jet expansion as predicted by case (1) is indeed observed in a few sources from the literature that are resolved laterally, on scales of tens or hundreds of parsecs, case (2) cannot be ruled out in the present data, provided the jets become conical on scales larger than those probed by VLBA. Chandra observations of 15 UGC FRIs detect X-ray jets in 9 of them. The high frequency of occurrence of X

Ecological impacts of non-native species

Science.gov (United States)

Wilkinson, John W.

2012-01-01

Non-native species are considered one of the greatest threats to freshwater biodiversity worldwide (Drake et al. 1989; Allen and Flecker 1993; Dudgeon et al. 2005). Some of the first hypotheses proposed to explain global patterns of amphibian declines included the effects of non-native species (Barinaga 1990; Blaustein and Wake 1990; Wake and Morowitz 1991). Evidence for the impact of non-native species on amphibians stems (1) from correlative research that relates the distribution or abundance of a species to that of a putative non-native species, and (2) from experimental tests of the effects of a non-native species on survival, growth, development or behaviour of a target species (Kats and Ferrer 2003). Over the past two decades, research on the effects of non-native species on amphibians has mostly focused on introduced aquatic predators, particularly fish. Recent research has shifted to more complex ecological relationships such as influences of sub-lethal stressors (e.g. contaminants) on the effects of non-native species (Linder et al. 2003; Sih et al. 2004), non-native species as vectors of disease (Daszak et al. 2004; Garner et al. 2006), hybridization between non-natives and native congeners (Riley et al. 2003; Storfer et al. 2004), and the alteration of food-webs by non-native species (Nystrom et al. 2001). Other research has examined the interaction of non-native species in terms of facilitation (i.e. one non-native enabling another to become established or spread) or the synergistic effects of multiple non-native species on native amphibians, the so-called invasional meltdown hypothesis (Simerloff and Von Holle 1999). Although there is evidence that some non-native species may interact (Ricciardi 2001), there has yet to be convincing evidence that such interactions have led to an accelerated increase in the number of non-native species and cumulative impacts are still uncertain (Simberloff 2006). Applied research on the control, eradication, and

Ecological impacts of non-native species: Chapter 2

Science.gov (United States)

Pilliod, David S.; Griffiths, R.A.; Kuzmin, S.L.; Heatwole, Harold; Wilkinson, John W.

2012-01-01

Non-native species are considered one of the greatest threats to freshwater biodiversity worldwide (Drake et al. 1989; Allen and Flecker 1993; Dudgeon et al. 2005). Some of the first hypotheses proposed to explain global patterns of amphibian declines included the effects of non-native species (Barinaga 1990; Blaustein and Wake 1990; Wake and Morowitz 1991). Evidence for the impact of non-native species on amphibians stems (1) from correlative research that relates the distribution or abundance of a species to that of a putative non-native species, and (2) from experimental tests of the effects of a non-native species on survival, growth, development or behaviour of a target species (Kats and Ferrer 2003). Over the past two decades, research on the effects of non-native species on amphibians has mostly focused on introduced aquatic predators, particularly fish. Recent research has shifted to more complex ecological relationships such as influences of sub-lethal stressors (e.g. contaminants) on the effects of non-native species (Linder et al. 2003; Sih et al. 2004), non-native species as vectors of disease (Daszak et al. 2004; Garner et al. 2006), hybridization between non-natives and native congeners (Riley et al. 2003; Storfer et al. 2004), and the alteration of food-webs by non-native species (Nystrom et al. 2001). Other research has examined the interaction of non-native species in terms of facilitation (i.e. one non-native enabling another to become established or spread) or the synergistic effects of multiple non-native species on native amphibians, the so-called invasional meltdown hypothesis (Simerloff and Von Holle 1999). Although there is evidence that some non-native species may interact (Ricciardi 2001), there has yet to be convincing evidence that such interactions have led to an accelerated increase in the number of non-native species and cumulative impacts are still uncertain (Simberloff 2006). Applied research on the control, eradication, and

[Man and his fellow-creatures under ethical aspects].

Science.gov (United States)

Teutsch, Gotthard M

2005-01-01

's excessive meat consumption as a "cruel necessity". Klaus Peter Joern also enters into Schweitzer's fundamental argumentation in his "A good bye to the disparagement of our fellow creatures". Quotation: "It just cannot go on that Christianity lets the validity of the commandment of love end at the behaviour towards humans, simply because that is the tradition. We rather have to, in this instance, deny the authority of the Bible it's due respect, as this has deemed Schweitzer already inevitable." The killing of animals, irrespective of the motives, remains a critical issue in the understanding (or the lack thereof) with regard to the dignity of all creation. Manuela Linnemann, Charles Patterson, Evelyn Ofensberger and the German Veterinary Association for the Protection of Animals have dealt with this issue extensively. As always, more space is taken up by publications dealing with legal questions and developments. In particular, the conference report of the Protestant Academy at Bad Boll should be mentioned "Animal protection on good constitution". Contributions to this report, edited by the academy, include Hans Georg Kluge's "The governmental aim 'animal protection' and it's implementation in jurisdiction" and Johannes Caspar's "effects of the governmental goal 'animal protection' in the protected area of unconditional fundamental rights". Regarding animal experiments, the last two position papers commissioned by the Foundation for animal-free research (FFVFF), dealing with perspectives of 3R research, have been published within the period of time covered by this report. Alternatives in basic research (with once again rising numbers of experimental animals) and in biomedical education are the themes dealt with by Franz P. Gruber and his co-authors Thomas Hartung and David Dewhurst.

A "Genetic Study" of the Galaxy

Science.gov (United States)

2006-09-01

Looking in detail at the composition of stars with ESO's VLT, astronomers are providing a fresh look at the history of our home galaxy, the Milky Way. They reveal that the central part of our Galaxy formed not only very quickly but also independently of the rest. "For the first time, we have clearly established a 'genetic difference' between stars in the disc and the bulge of our Galaxy," said Manuela Zoccali, lead author of the paper presenting the results in the journal Astronomy and Astrophysics [1]. "We infer from this that the bulge must have formed more rapidly than the disc, probably in less than a billion years and when the Universe was still very young." ESO PR Photo 34a/06 ESO PR Photo 34a/06 The Field around Baade's Window The Milky Way is a spiral galaxy, having pinwheel-shaped arms of gas, dust, and stars lying in a flattened disc, and extending directly out from a spherical nucleus of stars in the central region. The spherical nucleus is called a bulge, because it bulges out from the disc. While the disc of our Galaxy is made up of stars of all ages, the bulge contains old stars dating from the time the galaxy formed, more than 10 billion years ago. Thus, studying the bulge allows astronomers to know more about how our Galaxy formed. To do this, an international team of astronomers [2] analysed in detail the chemical composition of 50 giant stars in four different areas of the sky towards the Galactic bulge. They made use of the FLAMES/UVES spectrograph on ESO's Very Large Telescope to obtain high-resolution spectra. The chemical composition of stars carries the signature of the enrichment processes undergone by the interstellar matter up to the moment of their formation. It depends on the previous history of star formation and can thus be used to infer whether there is a 'genetic link' between different stellar groups. In particular, comparison between the abundance of oxygen and iron in stars is very illustrative. Oxygen is predominantly produced in

Alcohol, microbiome, life style influence alcohol and non-alcoholic organ damage.

Science.gov (United States)

Neuman, Manuela G; French, Samuel W; Zakhari, Samir; Malnick, Stephen; Seitz, Helmut K; Cohen, Lawrence B; Salaspuro, Mikko; Voinea-Griffin, Andreea; Barasch, Andrei; Kirpich, Irina A; Thomes, Paul G; Schrum, Laura W; Donohue, Terrence M; Kharbanda, Kusum K; Cruz, Marcus; Opris, Mihai

2017-02-01

This paper is based upon the "8th Charles Lieber's Satellite Symposium" organized by Manuela G. Neuman at the Research Society on Alcoholism Annual Meeting, on June 25, 2016 at New Orleans, Louisiana, USA. The integrative symposium investigated different aspects of alcohol-induced liver disease (ALD) as well as non-alcohol-induced liver disease (NAFLD) and possible repair. We revealed the basic aspects of alcohol metabolism that may be responsible for the development of liver disease as well as the factors that determine the amount, frequency and which type of alcohol misuse leads to liver and gastrointestinal diseases. We aimed to (1) describe the immuno-pathology of ALD, (2) examine the role of genetics in the development of alcoholic hepatitis (ASH) and NAFLD, (3) propose diagnostic markers of ASH and non-alcoholic steatohepatitis (NASH), (4) examine age and ethnic differences as well as analyze the validity of some models, (5) develop common research tools and biomarkers to study alcohol-induced effects, 6) examine the role of alcohol in oral health and colon and gastrointestinal cancer and (7) focus on factors that aggravate the severity of organ-damage. The present review includes pre-clinical, translational and clinical research that characterizes ALD and NAFLD. Strong clinical and experimental evidence lead to recognition of the key toxic role of alcohol in the pathogenesis of ALD with simple fatty infiltrations and chronic alcoholic hepatitis with hepatic fibrosis or cirrhosis. These latter stages may also be associated with a number of cellular and histological changes, including the presence of Mallory's hyaline, megamitochondria, or perivenular and perisinusoidal fibrosis. Genetic polymorphisms of ethanol metabolizing enzymes and cytochrome p450 (CYP) 2E1 activation may change the severity of ASH and NASH. Other risk factors such as its co-morbidities with chronic viral hepatitis in the presence or absence of human deficiency virus were discussed

Sensitivity of wetland methane emissions to model assumptions: application and model testing against site observations

Directory of Open Access Journals (Sweden)

L. Meng

2012-07-01

Full Text Available Methane emissions from natural wetlands and rice paddies constitute a large proportion of atmospheric methane, but the magnitude and year-to-year variation of these methane sources are still unpredictable. Here we describe and evaluate the integration of a methane biogeochemical model (CLM4Me; Riley et al., 2011 into the Community Land Model 4.0 (CLM4CN in order to better explain spatial and temporal variations in methane emissions. We test new functions for soil pH and redox potential that impact microbial methane production in soils. We also constrain aerenchyma in plants in always-inundated areas in order to better represent wetland vegetation. Satellite inundated fraction is explicitly prescribed in the model, because there are large differences between simulated fractional inundation and satellite observations, and thus we do not use CLM4-simulated hydrology to predict inundated areas. A rice paddy module is also incorporated into the model, where the fraction of land used for rice production is explicitly prescribed. The model is evaluated at the site level with vegetation cover and water table prescribed from measurements. Explicit site level evaluations of simulated methane emissions are quite different than evaluating the grid-cell averaged emissions against available measurements. Using a baseline set of parameter values, our model-estimated average global wetland emissions for the period 1993–2004 were 256 Tg CH₄ yr⁻¹ (including the soil sink and rice paddy emissions in the year 2000 were 42 Tg CH₄ yr⁻¹. Tropical wetlands contributed 201 Tg CH₄ yr⁻¹, or 78% of the global wetland flux. Northern latitude (>50 N systems contributed 12 Tg CH₄ yr⁻¹. However, sensitivity studies show a large range (150–346 Tg CH₄ yr⁻¹ in predicted global methane emissions (excluding emissions from rice paddies. The large range is

Providing Home-Based HIV Testing and Counseling for Transgender Youth (Project Moxie): Protocol for a Pilot Randomized Controlled Trial.

Science.gov (United States)

Stephenson, Rob; Metheny, Nicholas; Sharma, Akshay; Sullivan, Stephen; Riley, Erin

2017-11-28

participants. Combining home-based HIV testing and video-based counseling allows TY, an often stigmatized and marginalized population, to test for HIV in a safe and nonjudgmental setting of their choosing. This approach creates an opportunity to reduce the high rate of HIV among TY through engagement in care, support, and linkage to the HIV treatment cascade for those who test positive. ClinicalTrials.gov NCT03185975; https://clinicaltrials.gov/ct2/show/NCT03185975 (Archived by WebCite at http://www.webcitation.org/6vIjHJ93s). ©Rob Stephenson, Nicholas Metheny, Akshay Sharma, Stephen Sullivan, Erin Riley. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 28.11.2017.

Book Reviews

Directory of Open Access Journals (Sweden)

Redactie KITLV

2008-12-01

Full Text Available Frederick H. Smith; Caribbean Rum: A Social and Economic History (Franklin W. Knight Stephan Palmié; Wizards and Scientists: Explorations in Afro-Cuban Modernity and Tradition (Julie Skurski Miguel A. De la Torre; The Quest for the Cuban Christ: A Historical Search (Fernando Picó L. Antonio Curet, Shannon Lee Dawdy & Gabino La Rosa Corzo (eds.; Dialogues in Cuban Archaeology (David M. Pendergast Jill Lane; Blackface Cuba, 1840-1895 (Arthur Knight Hal Klepak; Cuba’s Military 1990-2005: Revolutionary Soldiers during Counter-Revolutionary Times (Antoni Kapcia Lydia Chávez (ed.; Capitalism, God, and a Good Cigar: Cuba Enters the Twenty-First Century (Ann Marie Stock Diane Accaria-Zavala & Rodolfo Popelnik (eds.; Prospero’s Isles: The Presence of the Caribbean in the American Imaginary (Sean X. Goudie Alexandra Isfahani-Hammond (ed.; The Masters and the Slaves: Plantation Relations and Mestizaje in American Imaginaries (Danielle D. Smith David J. Weber; Bárbaros: Spaniards and Their Savages in the Age of Enlightenment (Neil L. Whitehead Larry Gragg; Englishmen Transplanted: The English Colonization of Barbados, 1627-1660 (Richard S. Dunn Jon F. Sensbach; Rebecca’s Revival: Creating Black Christianity in the Atlantic World (Aaron Spencer Fogleman Jennifer L. Morgan; Laboring Women: Reproduction and Gender in New World Slavery (Verene A. Shepherd Jorge Luis Chinea; Race and Labor in the Hispanic Caribbean: The West Indian Immigrant Worker Experience in Nineteenth-Century Puerto Rico, 1800-1850 (Juan José Baldrich Constance R. Sutton (ed.; Revisiting Caribbean Labour: Essays in Honour of O. Nigel Bolland (Mary Chamberlain Gert Oostindie; Paradise Overseas: The Dutch Caribbean: Colonialism and its Transatlantic Legacies (Bridget Brereton Allan Pred; The Past Is Not Dead: Facts, Fictions, and Enduring Racial Stereotypes (Karen Fog Olwig James C. Riley; Poverty and Life Expectancy: The Jamaica

Energy transfer and reaction dynamics of matrix-isolated 1,2-difluoroethane-d4

Science.gov (United States)

Raff, Lionel M.

1990-09-01

The molecular dynamics of vibrationally excited 1,2-difluoroethane-d4 isolated in Ar, Kr, and Xe matrices at 12 K are investigated using trajectory methods. The matrix model is an fcc crystal containing 125 unit cells with 666 atoms in a cubic (5×5×5) arrangement. It is assumed that 1,2-difluoroethane-d4 is held interstitially within the volume bounded by the innermost unit cell of the crystal. The transport effects of the bulk are simulated using the velocity reset method introduced by Riley, Coltrin, and Diestler [J. Chem. Phys. 88, 5934 (1988)]. The system potential is written as the separable sum of a lattice potential, a lattice-molecule interaction and a gas-phase potential for 1,2-difluoroethane. The first two of these are assumed to have pairwise form while the molecular potential is a modified form of the global potential previously developed for 1,2-difluoroethane [J. Phys. Chem. 91, 3266 (1987)]. Calculated sublimation energies for the pure crystals are in good accord with the experimental data. The distribution of metastable-state energies for matrix-isolated 1,2-difluoroethane-d4 is Gaussian in form. In krypton, the full width at half maximum for the distribution is 0.37 eV. For a total excitation energy of 6.314 eV, the observed dynamic processes are vibrational relaxation, orientational exchange, and four-center DF elimination reactions. The first of these processes is characterized by a near linear, first-order decay curve with rate coefficients in the range 1.30-1.48×1011 s-1. The average rates in krypton and xenon are nearly equal. The process is slightly slower in argon. The decay curves exhibit characteristic high-frequency oscillations that are generally seen in energy transfer studies. It is demonstrated that these oscillations are associated with the frequencies for intramolecular energy transfer so that the entire frequency spectrum for such transfer processes can be obtained from the Fourier transform of the decay curve. Orientational

Particle dispersion and mixing induced by breaking internal gravity waves

Science.gov (United States)

Bouruet-Aubertot, Pascale; Koudella, C.; Staquet, C.; Winters, K. B.

2001-01-01

The purpose of this paper is to analyze diapycnal mixing induced by the breaking of an internal gravity wave — the primary wave — either standing or propagating. To achieve this aim we apply two different methods. The first method consists of a direct estimate of vertical eddy diffusion from particle dispersion while the second method relies upon potential energy budgets [Winters, K.B., Lombard, P.N., Riley, J.J., D'Asaro, E.A., 1995. J. Fluid Mech. 289, 115-128; Winters, K.B., D'Asaro, E.A., 1996. J. Fluid Mech. 317, 179-193]. The primary wave we consider is of small amplitude and is statically stable, a case for which the breaking process involves two-dimensional instabilities. The dynamics of the waves have been previously analyzed by means of two-dimensional direct numerical simulations [Bouruet-Aubertot, P., Sommeria, J., Staquet, C., 1995. J. Fluid Mech. 285, 265-301; Bouruet-Aubertot, P., Sommeria, J., Staquet, C., 1996. Dyn. Atmos. Oceans 29, 41-63; Koudella, C., Staquet, C., 1998. In: Davis, P. (Ed.), Proceedings of the IMA Conference on Mixing and Dispersion on Stably-stratified Flows, Dundee, September 1996. IMA Publication]. High resolution three-dimensional calculations of the same wave are also reported here [Koudella, C., 1999]. A local estimate of mixing is first inferred from the time evolution of sets of particles released in the flow during the breaking regime. We show that, after an early evolution dominated by shear effects, a diffusion law is reached and the dispersion coefficient is fairly independent of the initial seeding location of the particles in the flow. The eddy diffusion coefficient, K, is then estimated from the diapycnal diffusive flux. A good agreement with the value inferred from particle dispersion is obtained. This finding is of particular interest regarding the interpretation of in situ estimates of K inferred either from tracer dispersion or from microstructure measurements. Computation of the Cox number, equal to the

Analysis of long-term (median 10.5 years) outcomes in children presenting with traumatic brain injury and an initial Glasgow Coma Scale score of 3 or 4.

Science.gov (United States)

Fulkerson, Daniel H; White, Ian K; Rees, Jacqueline M; Baumanis, Maraya M; Smith, Jodi L; Ackerman, Laurie L; Boaz, Joel C; Luerssen, Thomas G

2015-10-01

Patients with traumatic brain injury (TBI) with low presenting Glasgow Coma Scale (GCS) scores have very high morbidity and mortality rates. Neurosurgeons may be faced with difficult decisions in managing the most severely injured (GCS scores of 3 or 4) patients. The situation may be considered hopeless, with little chance of a functional recovery. Long-term data are limited regarding the clinical outcome of children with severe head injury. The authors evaluate predictor variables and the clinical outcomes at discharge, 1 year, and long term (median 10.5 years) in a cohort of children with TBI presenting with postresuscitation GCS scores of 3 and 4. A review of a prospectively collected trauma database was performed. Patients treated at Riley Hospital for Children (Indianapolis, Indiana) from 1988 to 2004 were reviewed. All children with initial GCS (modified for pediatric patients) scores of 3 or 4 were identified. Patients with a GCS score of 3 were compared with those with a GCS score of 4. The outcomes of all patients at the time of death or discharge and at 1-year and long-term follow-up were measured with a modified Glasgow Outcome Scale (GOS) that included a "normal" outcome. Long-term outcomes were evaluated by contacting surviving patients. Statistical "classification trees" were formed for survival and outcome, based on predictor variables. Sixty-seven patients with a GCS score of 3 or 4 were identified in a database of 1636 patients (4.1%). Three of the presenting factors differed between the GCS 3 patients (n = 44) and the GCS 4 patients (n = 23): presence of hypoxia, single seizure, and open basilar cisterns on CT scan. The clinical outcomes were statistically similar between the 2 groups. In total, 48 (71.6%) of 67 patients died, remained vegetative, or were severely disabled by 1 year. Eight patients (11.9%) were normal at 1 year. Ten of the 22 patients with long-term follow-up were either normal or had a GOS score of 5. Multiple clinical

Journal abstracts from current research in the field of child and adolescent mental health.

Science.gov (United States)

2009-12-01

at-risk adolescents. Journal of Child & Adolescent Psychiatric Nursing 22(3): 160-168 Page RM & Hall CP (2009) Psychosocial distress and alcohol use as factors in adolescent sexual behaviour among sub-Saharan African adolescents. Journal of School Health 79(8): 369-379 Taliaferro LA, Rienzo BA, Pigg RM, Miller MD & Dodd VJ (2009) Spiritual well-being and suicidal ideation among college students. Journal of American College Health 58(1): 83-90 Jarrett T, Horn K & Zhang J (2009) Teen perceptions of facilitator characteristics in a school-based smoking cessation program. Journal of School Health 79(7): 297-303 Parker JS & Morton TL (2009) Distinguishing between early and late onset delinquents: Race, income, verbal intelligence and impulsivity. North American Journal of Psychology 11(2): 273-284 Burris JL, Smith GT & Carlson CR (2009) Relations among religiousness, spirituality and sexual practices. Journal of Sex Research 46(4): 282-289 Brown DW, Riley L, Butchart A, Meddings DR, Kann L & Harvey AP (2009) Exposure to physical and sexual violence and adverse health behaviours in African children: Results from the Global School-based Student Health Survey. Bulletin of the World Health Organization 87(6): 447-B.

Temporal trends in erosion and hydrology for a post-mining landform at Ranger mine, Northern Territory. Supervising Scientist report 165

International Nuclear Information System (INIS)

Moliere, D.R.; Evans, K.G.; Saynor, M.J.; Willgoose, G.R.

2002-01-01

An important part of rehabilitation planning for mines is the design of a stable landform for waste rock dumps or spoil piles, at the completion of mining, which minimise erosion and environmental impact offsite. To successfully incorporate landform designs in planning, there is a need to be able to predict the surface stability of the final landform using erosion and landform evolution modelling techniques. In the long term, weathering, soil forming processes, ecosystem development and even climate change may affect the surface characteristics, and hence the stability, of the rehabilitated landform. In this study, changes to the surface characteristics of a landform in time can be quantified in terms of erosion parameters. Since a prediction of the stability of the rehabilitated landform is required over the long term, temporal changes in these erosion parameters are incorporated into landform evolution modelling of a post-mining landform. The landform evolution model SIBERIA was used to predict the stability of the proposed rehabilitated landform at Ranger Mine, Northern Territory. The data collection sites were considered to be representative of the hydrology and erosion characteristics that would exist on the WRD at Ranger at various stages after rehabilitation. This study uses measured site data from landforms with hydrology and erosion properties similar to those likely to develop on Ranger at various times after rehabilitation to assess the effect of temporal change on landform evolution model input parameters. Section 2 documents the process of SIBERIA input parameter derivation and landform evolution modelling using collected site rainfall, runoff and sediment loss data. This section is based on the detailed descriptions of the process given in Willgoose and Riley (1998) and Evans et al( 1998). In section 3, monitoring data, collected from sites with properties similar to those likely to develop on the proposed above-grade landform at Ranger at various

Use of blood biomarkers to screen for obstructive sleep apnea

Directory of Open Access Journals (Sweden)

Fleming WE

2018-06-01

Full Text Available Wesley Elon Fleming,1 Jon-Erik C Holty,2 Richard K Bogan,3 Dennis Hwang,4 Aliya S Ferouz-Colborn,4 Rohit Budhiraja,5 Susan Redline,5 Edith Mensah-Osman,6 Nadir Ishag Osman,6 Qing Li,7 Armaghan Azad,1 Susann Podolak,1 Michael K Samoszuk,8 Amabelle B Cruz,8 Yang Bai,8 Jiuliu Lu,8 John S Riley,8 Paula C Southwick8 1Sleep Center Orange County, Irvine, CA, USA; 2Stanford Medical School, VA Palo Alto Health Care System, Pulmonary, Critical Care and Sleep Medicine Section, Palo Alto, CA, USA; 3SleepMed Inc., Bogan Sleep Consultants, LLC, Columbia, SC, USA; 4Sleep Medicine Department, Southern California Permanente Medical Group, Kaiser Permanente, Fontana Medical Center, Fontana, CA, USA; 5Division of Sleep Medicine, Harvard Medical School, Brigham and Women’s Hospital, Boston, MA, USA; 6EENA Comprehensive Neurology and Sleep Center, Boynton Beach, FL, USA; 7South Bend Medical Foundation, New Technology and Test Development, South Bend, IN, USA; 8Clinical Research Department, Beckman Coulter, Inc., Brea, CA, USAPurpose: Obstructive sleep apnea (OSA is a highly prevalent disorder associated with increased risk for cardiovascular disease, diabetes, and other chronic conditions. Unfortunately, up to 90% of individuals with OSA remain without a diagnosis or therapy. We assess the relationship between OSA and blood biomarkers, and test the hypothesis that combinations of markers provide a characteristic OSA signature with diagnostic screening value. This validation study was conducted in an independent cohort in order to replicate findings from a prior feasibility study.Patients and methods: This multicenter prospective study consecutively enrolled adult male subjects with clinically suspected OSA. All subjects underwent overnight sleep studies. An asymptomatic control group was also obtained. Five biomarkers were tested: glycated hemoglobin (HbA1c, C-reactive protein (CRP, uric acid, erythropoietin (EPO, and interleukin-6 (IL-6.Results: The study

Fermi-LAT observation of nonblazar AGNs

Science.gov (United States)

Sahakyan, N.; Baghmanyan, V.; Zargaryan, D.

2018-06-01

Context. Fermi Large Area Telescope (Fermi-LAT) has recently detected γ-ray emission from active galactic nuclei (AGN) that do not show clear evidence for optical blazar characteristics or have jets pointing away from the observer (nonblazar AGNs). These are interesting γ-ray emitters providing an alternative approach to studying high energy emission processes. Aims: This paper investigates the spectral and temporal properties of γ-ray emission from nonblazar AGNs using the recent Fermi-LAT observational data. Methods: The data collected by Fermi-LAT during 2008-2015, from the observations of 26 nonblazar AGNs, including 11 Fanaroff-Riley Type I (FRI) and ten FRII radio galaxies and steep spectrum radio quasars (SSRQs) and five narrow line seyfert 1s (NLSy1s) are analysed using the new PASS 8 event selection and instrument response function. Possible spectral changes above GeV energies are investigated with a detailed spectral analysis. Light curves generated with normal and adaptive time bins are used to study the γ-ray flux variability. Results: Non-blazar AGNs have a γ-ray photon index in the range of 1.84-2.86 and a flux varying from a few times 10-9 photon cm-2 s-1 to 10-7 photon cm-2 s-1. Over long time periods, the power law provides an adequate description of the γ-ray spectra of almost all sources. Significant curvature is observed in the γ-ray spectra of NGC 1275, NGC 6251, SBS 0846 + 513, and PMN J0948 + 0022 and their spectra are better described by log parabola or by the power law with exponential cut-off models. The γ-ray spectra of PKS 0625-25 and 3C 380 show a possible deviation from a simple power-law shape, indicating a spectral cut-off around the observed photon energy of Ecut = 131.2 ± 88.04 GeV and Ecut = 55.57 ± 50.74 GeV, respectively. Our analysis confirms the previous finding of an unusual spectral turnover in the γ-ray spectrum of Cen A: the photon index changes from Γ = 2.75 ± 0.02 to 2.31 ± 0.1 at 2.35 ± 0.08 GeV. In the �

Interação tritrófica e influência de produtos químicos e vegetais no complexo: brássicas x traça-das-crucíferas x parasitóides de ovos Tritrofic interaction and influence of insecticides and plant products on the complex: brassica diamondback moth egg parasitoids

Directory of Open Access Journals (Sweden)

Robson Thomaz Thuler

2008-08-01

Full Text Available Objetivou-se avaliar a interação tritrófica no complexo hospedeiro-vegetal (brássicas x praga/hospedeiro-natural Plutella xylostella Linnaeus x inseto-entomófago (parasitóides - Trichogrmma pretiosum Riley e T. exiguum Pinto & Platner, associada a alguns produtos químicos e vegetais com efeito inseticida, utilizando-se os cultivares de repolho verde - Chato de quintal e híbrido Midori; roxo - Roxo precoce e Híbrido roxo - TPC00682; e couve manteiga - Geórgia e hibrido Geórgia HS20, pulverizadas com os inseticidas: lufenuron (2,52 ml/100L e deltametrina (32 ml/100L, os produtos vegetais óleo de nim a 0,16 % e extrato pirolenhoso a 3,0 %, controle (água. Foi avaliada a interação das cultivares com os compostos por meio da exposição de lagartas recém-eclodidas aos produtos, avaliando-se os insetos nas fases de desenvolvimento até a emergência dos adultos. Para avaliar o efeito desses compostos sobre os parasitóides, foram empregados ovos de uma geração F2 de P. xylostella oriunda de lagartas alimentadas com folhas de brássicas, pulverizadas com esses produtos. A associação de produtos químicos ou vegetais, com efeito inseticida, com as cultivares de brássicas permitiu o manejo mais eficaz, especialmente na interação extrato pirolenhoso x a cultivar de repolho Chato de quintal. Observa-se que a interação entre as cultivares e os produtos pode ser prejudicial à atuação do parasitóide Trichogramma, sendo necessária uma avaliação criteriosa para minimizar o efeito sobre inimigos naturais.The aim of this work was to evaluate the tritrofic interaction in brassica complex: host-vegetable (brassica vs. pest/natural-host (Plutella xylostella vs. entomophagous-insect (parasitoid - Trichogramma pretiosum and Trichogramma exiguum, combined with chemical and vegetable products with insecticide action. The cultivar used were: green cabbage - Chato de quintal and Midori hybrid; purple cabbage - Roxo Precoce and purple hybrid

Self-reported concussion history: impact of providing a definition of concussion

Directory of Open Access Journals (Sweden)

Robbins CA

2014-05-01

Full Text Available Clifford A Robbins,1 Daniel H Daneshvar,1,2 John D Picano,1,3 Brandon E Gavett,1,4 Christine M Baugh,1,2 David O Riley,1 Christopher J Nowinski,1,2,5 Ann C McKee,1,2,6–8 Robert C Cantu,1,5,9,10 Robert A Stern1,2,8,91Center for the Study of Traumatic Encephalopathy, 2Department of Neurology, Boston University School of Medicine, Boston, MA, USA; 3School of Medicine and Biomedical Sciences, University of Buffalo, Buffalo, NY, USA; 4Department of Psychology, University of Colorado, Colorado Springs, CO, USA; 5Sports Legacy Institute, Waltham MA, USA; 6United States Department of Veterans Affairs, VA Boston Healthcare System, Boston, MA, USA; 7Department of Pathology, 8Alzheimer's Disease Center, 9Department of Neurosurgery, Boston University School of Medicine, Boston, MA, USA; 10Department of Neurosurgery, Emerson Hospital, Concord, MA, USABackground: In recent years, the understanding of concussion has evolved in the research and medical communities to include more subtle and transient symptoms. The accepted definition of concussion in these communities has reflected this change. However, it is unclear whether this shift is also reflected in the understanding of the athletic community.What is known about the subject: Self-reported concussion history is an inaccurate assessment of someone's lifetime exposure to concussive brain trauma. However, unfortunately, in many cases it is the only available tool.Hypothesis/purpose: We hypothesize that athletes' self-reported concussion histories will be significantly greater after reading them the current definition of concussion, relative to the reporting when no definition was provided. An increase from baseline to post-definition response will suggest that athletes are unaware of the currently accepted medical definition.Study design: Cross-sectional study of 472 current and former athletes.Methods: Investigators conducted structured telephone interviews with current and former athletes between January

Seletividade de herbicidas registrados para a cultura do milho aos estádios imaturos de Trichogramma pretiosum (Hymenoptera: Trichogrammatidae Selectivity of herbicides registered for corn at the immature stages of Trichogramma pretio sum (Hymenoptera: Trichogrammatidae

Directory of Open Access Journals (Sweden)

G.J Stefanello Jr

2011-01-01

Full Text Available O controle químico tem sido um dos métodos mais utilizados para o manejo de plantas daninhas na cultura do milho, no entanto o uso de herbicidas pode ocasionar efeitos adversos aos insetos benéficos, como os parasitoides de ovos. Nesse sentido, foi avaliada a seletividade de 12 herbicidas registrados para a cultura do milho para as fases imaturas de Trichogramma pretiosum em condições de laboratório (temperatura de 25±1 ºC, umidade relativa de 70±10% e fotofase de 14 horas. Os herbicidas foram diluídos em um volume proporcional a 200 L de água por hectare e pulverizados sobre ovos de lepidóptero contendo formas imaturas do parasitoide em seu interior, nas fases de ovo-larva, pré-pupa e pupa. Avaliou-se, então, a porcentagem de emergência dos parasitoides e, em função da comparação com a testemunha, classificaram-se os herbicidas em inócuo (classe 1, 99%. Os herbicidas Agrisato 480 SL, Finale, Glifos, Glifosato Nortox, Gliz 480 SL, Polaris, Roundup Original, Roundup Transorb, Roundup WG, Trop e Zapp Qi foram inócuos (classe 1 às diferentes fases imaturas de T. pretiosum e são considerados seletivos ao parasitoide. Gramoxone 200, embora tenha sido inócuo para as fases de ovo-larva e pré-pupa, foi considerado levemente nocivo (classe 2 para a fase de pupa. Nesse sentido, para melhor compatibilização do manejo químico das plantas daninhas e controle biológico de insetos, sugere-se que sejam utilizados, sempre que possível, aqueles herbicidas que permitem maior sobrevivência de T. pretiosum.- Chemical control has been one of the most widely used methods for weed mana gement in corn. However, the use of herbicides can cause adverse effects on beneficial insects, such as egg parasitoids. Thus, this work aimed to evaluate the selectivity of 12 herbicides regis tered for corn at the immature stages of Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae under laboratory conditions (temperature 25±1 o C

“¿Cuál es el grado de aceptación de la campaña ¨reacciona Ecuador, el machismo es violencia¨ en el público masculino de 35 a 45 años, a través del análisis de los mensajes emitidos por los spots televisivos en la zona correspondiente al centro de equidad y justicia tres manuelas?”

OpenAIRE

Proaño Castillo, María Belén; Zurita Ramos, Melissa Andrea

2013-01-01

In this thesis was to investigate the degree of acceptance of the campaign "Reacciona Ecuador, el machismo es violencia," government campaign launched in the year 2010, whose strong root in the broadcast of commercials on television, where its main objective focuses on the eradication of gender violence in the Ecuador. For the realization of theoretical research will investigate various topics as what is sexism and gender violence, television production and analysis of the campaign along w...

Nutrients, phytoplankton, zooplankton, and macrobenthos

Science.gov (United States)

Rudstam, Lars G.; Holeck, Kristen T.; Watkins, James M.; Hotaling, Christopher; Lantry, Jana R.; Bowen, Kelly L.; Munawar, Mohi; Weidel, Brian C.; Barbiero, Richard; Luckey, Frederick J.; Dove, Alice; Johnson, Timothy B.; Biesinger, Zy

2017-01-01

Lower trophic levels support the prey fish on which most sport fish depend. Therefore, understanding the production potential of lower trophic levels is integral to the management of Lake Ontario’s fishery resources. Lower trophic-level productivity differs among offshore and nearshore waters. In the offshore, there is concern about the ability of the lake to support Alewife (Table 1) production due to a perceived decline in productivity of phytoplankton and zooplankton whereas, in the nearshore, there is a concern about excessive attached algal production (e.g., Cladophora) associated with higher nutrient concentrations—the oligotrophication of the offshore and the eutrophication of the nearshore (Mills et al. 2003; Holeck et al. 2008; Dove 2009; Koops et al. 2015; Stewart et al. 2016). Even though the collapse of the Alewife population in Lake Huron in 2003 (and the associated decline in the Chinook Salmon fishery) may have been precipitated by a cold winter (Dunlop and Riley 2013), Alewife had not returned to high abundances in Lake Huron as of 2014 (Roseman et al. 2015). Failure of the Alewife population to recover from collapse has been attributed to declines in lower trophic-level production (Barbiero et al. 2011; Bunnell et al. 2014; but see He et al. 2015). In Lake Michigan, concerns of a similar Alewife collapse led to a decrease in the number of Chinook Salmon stocked. If lower trophic-level production declines in Lake Ontario, a similar management action could be considered. On the other hand, in Lake Erie, which supplies most of the water in Lake Ontario, eutrophication is increasing and so are harmful algal blooms. Thus, there is also a concern that nutrient levels and algal blooms could increase in Lake Ontario, especially in the nearshore. Solutions to the two processes of concern—eutrophication in the nearshore and oligotrophication in the offshore—may be mutually exclusive. In either circumstance, fisheries management needs information on

Extended Radio Emission in MOJAVE Blazars: Challenges to Unification

Science.gov (United States)

Kharb, P.; Lister, M. L.; Cooper, N. J.

2010-02-01

their parent population. It could also just be due to small number statistics. We find that the ratio of the radio core luminosity to the k-corrected optical luminosity (Rv ) appears to be a better indicator of orientation for this blazar sample than the traditionally used radio core prominence parameter (Rc ). Based on the assumption that the extended radio luminosity is affected by the kiloparsec-scale environment, we define the ratio of extended radio power to absolute optical magnitude (L ext/M abs) as a proxy for environmental effects. Trends with this parameter suggest that the parsec-scale jet speeds and the parsec-to-kiloparsec jet misalignments are not affected by the large-scale environment, but are more likely to depend upon factors intrinsic to the active galactic nucleus, or its local parsec-scale environment. The jet speeds could, for instance, be related to the black hole spins, while jet misalignments could arise due to the presence of binary black holes, or kicks imparted to black holes via black hole mergers, consistent with both radio morphologies resembling precessing jet models observed in some MOJAVE blazars and the signature of a 90° bump in the jet misalignment distribution, attributed to low-pitch helical parsec-scale jets in the literature. We suggest that some of the extremely misaligned MOJAVE blazar jets could be "hybrid" morphology sources, with an FRI jet on one side and an FRII jet on the other. It is tempting to speculate that environmental radio boosting (as proposed for Cygnus A) could be responsible for blurring the Fanaroff-Riley dividing line in the MOJAVE blazars, provided a substantial fraction of them reside in dense (cluster) environments.

EXTENDED RADIO EMISSION IN MOJAVE BLAZARS: CHALLENGES TO UNIFICATION

International Nuclear Information System (INIS)

Kharb, P.; Lister, M. L.; Cooper, N. J.

2010-01-01

their parent population. It could also just be due to small number statistics. We find that the ratio of the radio core luminosity to the k-corrected optical luminosity (R v ) appears to be a better indicator of orientation for this blazar sample than the traditionally used radio core prominence parameter (R c ). Based on the assumption that the extended radio luminosity is affected by the kiloparsec-scale environment, we define the ratio of extended radio power to absolute optical magnitude (L ext /M abs ) as a proxy for environmental effects. Trends with this parameter suggest that the parsec-scale jet speeds and the parsec-to-kiloparsec jet misalignments are not affected by the large-scale environment, but are more likely to depend upon factors intrinsic to the active galactic nucleus, or its local parsec-scale environment. The jet speeds could, for instance, be related to the black hole spins, while jet misalignments could arise due to the presence of binary black holes, or kicks imparted to black holes via black hole mergers, consistent with both radio morphologies resembling precessing jet models observed in some MOJAVE blazars and the signature of a 90 deg. bump in the jet misalignment distribution, attributed to low-pitch helical parsec-scale jets in the literature. We suggest that some of the extremely misaligned MOJAVE blazar jets could be 'hybrid' morphology sources, with an FRI jet on one side and an FRII jet on the other. It is tempting to speculate that environmental radio boosting (as proposed for Cygnus A) could be responsible for blurring the Fanaroff-Riley dividing line in the MOJAVE blazars, provided a substantial fraction of them reside in dense (cluster) environments.

Studying Turbulence Using Numerical Simulation Databases. No. 7; Proceedings of the Summer Program

Science.gov (United States)

1998-01-01

forcing strategy for jets yielding increased spreading rate. A very efficient algorithm for flow in complex geometries with moving boundaries based on the immersed boundary forcing technique was tested with very encouraging results. Also a new strategy for the destruction of aircraft trailing vortices was introduced and tested. The Reynolds Averaged Modeling (RANS) group demonstrated that the elliptic relaxation concept for RANS calculations is also applicable to transonic flows with shocks; however, prediction of laminar/turbulent transition remains an important pacing item. A large fraction of the LES effort was devoted to the development and testing of a new algorithmic procedure (as opposed to phenomenological model) for subgrid scale modeling based on regularized de-filtering of the flow variables. This appears to be a very promising approach, and a significant effort is currently underway to assess its robustness in high Reynolds number flows and in conjunction with numerical methods for complex flows. As part of the Summer Program two review tutorials were given on Turbulent structures in hydrocarbon pool fires (Sheldon Tieszen), and Turbulent combustion modeling: from RANS to LES via DNS (Luc Vervisch); and two seminars entitled Assessment of turbulence models for engineering applications (Paul Durbin) and Subgrid-scale modeling for non-premixed, turbulent reacting flows (James Riley) were presented. A number of colleagues from universities, government agencies, and industry attended the final presentations of the participants on July 31 and participated in the discussions. There are twenty-six papers in this volume grouped in five areas. Each group is preceded with an overview by its coordinator.

METHANE de-NOX for Utility PC Boilers

Energy Technology Data Exchange (ETDEWEB)

Bruce Bryan; Serguei Nester; Joseph Rabovitser; Stan Wohadlo

2005-09-30

to minimize the need for overfire air by maximizing NO{sub x} reduction in the burner. The proposed combustion concept aims to greatly reduce NO{sub x} emissions by incorporating a novel modification to conventional or low-NO{sub x} PC burners using gas-fired coal preheating to destroy NO{sub x} precursors and prevent NO{sub x} formation. A concentrated PC stream enters the burner, where flue gas from natural gas combustion is used to heat the PC up to about 1500 F prior to coal combustion. Secondary fuel consumption for preheating is estimated to be 3 to 5% of the boiler heat input. This thermal pretreatment releases coal volatiles, including fuel-bound nitrogen compounds into oxygen-deficient atmosphere, which converts the coal-derived nitrogen compounds to molecular N{sub 2} rather than NO. Design, installation, shakedown, and testing on Powder River Basin (PRB) coal at a 3-million Btu/h pilot system at RPI's (Riley Power, Inc.) pilot-scale combustion facility (PSCF) in Worcester, MA demonstrated that the PC PREHEAT process has a significant effect on final O{sub x} formation in the coal burner. Modifications to both the pilot system gas-fired combustor and the PC burner led to NO{sub x} reduction with PRB coal to levels below 0.15 lb/million Btu with CO in the range of 35-112 ppmv without any furnace air staging.

Theoretical studies of the reaction dynamics of the matrix-isolated F2+cis-d2 -ethylene system

Science.gov (United States)

Raff, Lionel M.

1991-12-01

The molecular dynamics of the F2+cis-d2 -ethylene addition reaction and the subsequent decomposition dynamics of the vibrationally excited 1,2-difluoroethane-d2 product isolated in Ar or Xe matrices at 12 K are investigated using trajectory methods that incorporate nonstatistical sampling to enhance the reaction probabilities. The matrix is represented by a face-centered-cubic crystal containing 125 unit cells with 666 lattice atoms in a cubic (5×5×5) arrangement. Both interstitial and substitutional sites for the F2/cis-d2 -ethylene pair are examined. Transport effects of the bulk are simulated using the velocity reset method introduced by Riley, Coltrin, and Diestler [J. Chem. Phys. 88, 5934 (1988)]. The potential-energy hypersurface for the system is written as the separable sum of a lattice potential, a lattice-substrate interaction, and a gas-phase potential for 1,2-difluoroethane-d2. The first two of these have pairwise form, while the 1,2-difluoroethane-d2 potential is identical to that employed previously to study the unimolecular reaction dynamics of matrix-isolated 1,2-difluoroethane-d4 [J. Chem. Phys. 93, 3160 (1990)]. The major F2+cis-d2 -ethylene reaction mechanism involves a four-center, concerted αβ addition across the C=C double bond. A small contribution from an atomic addition mechanism that initially forms fluoroethyl and fluorine radicals is observed in a xenon matrix, but not in argon. Subsequent to the formation of 1,2-difluoroethane-d2, the observed dynamic processes are vibrational relaxation to the lattice phonon modes, orientational exchange, and HF or DF elimination reactions. Vibrational relaxation is found to be very similar to that observed previously for 1,2-difluoroethane-d4. The process is well described by a first-order rate law with rate coefficients in the range 0.046-0.069 ps-1. The distribution of rate coefficients, as well as the averages, are nearly identical for Ar and Xe lattices. Very little difference is found between

The 12th Edition of the Scientific Days of the National Institute for Infectious Diseases “Prof. Dr. Matei Bals” and the 12th National Infectious Diseases Conference

Directory of Open Access Journals (Sweden)

Cristian-Mihail Niculae

2016-11-01

-Kezdi, Cristina Gîrbovan, Andrea Incze, Anca Meda Georgescu A54 LPS serum levels and correlation with immunological, virological and clinical outcome in HIV infected patients Simona Alexandra Iacob, Diana Gabriela Iacob, Eugenia Panaitescu, Monica Luminos, Manole Cojocaru A55 LL37 human cathelicidin serum levels are positively correlated with IFN gamma and alanine aminotransferase level in HCV infection Simona Alexandra Iacob, Diana Gabriela Iacob, Monica Luminos A56 Early diagnosis of pulmonary tuberculosis in a non-compliant HIV/AIDS late presenter patient Vochita Laurențiu, Vochita Andreia, Opreanu Radu, Trinca Bogdan, Rosca Ovidiu, Marincu Iosif A57 Evolution of antiretroviral regimens in naϊve patients in 2016 Ramona Zamfir, Alina Angelescu, Alena Andreea Popa, Raluca Jipa, Ruxandra Moroti, Adriana Hristea, Liana Gavriliu, Șerban Benea, Elisabeta Benea A58 The unfavorable risk factors for HIV infected persons with positive blood cultures hospitalized at the National Institute for Infectious Diseases “Prof. Dr. Matei Balș” in 2015 Alena-Andreea Popa, Georgeta Ducu, Daniela Camburu, Alina Cozma, Manuela Podani, Roxana Dumitriu, Liana Gavriliu, Șerban Benea, Elisabeta Benea A59 Epidemiological aspects of HIV infection in Oltenia region Andreea Cristina Stoian, Florentina Dumitrescu, Augustin Cupșa, Lucian Giubelan, Irina Niculescu, Loredana Ionescu, Livia Dragonu A60 HIV risk behaviors and prevalence among patients in methadone maintenance therapy (MMT from Arena center, Bucharest Adrian Octavian Abagiu, Loredana Nicoleta Stoica, Catrinel Blaga, Archontis Koulosousas, Roxana Ștefănescu, Alice Atomoaie, Florentina Paraschiv, Florin Matache Duna A61 Therapeutic options in a case of severe psoriasis associated with both HIV infection and hepatitis C virus previously treated with fumaric acid esters Rodica Olteanu, Roxana Ion, Alexandra Zota, Isra Ennour Jaballah, Lara Mahfoud, Georgeta Preda, Magda Constantin A62 Prevalence of autoantibodies against gangliosides in

From surfaces to magnetic properties: special section dedicated to Juan Rojo

Science.gov (United States)

Mascaraque, A.; Rodríguez de la Fuente, O.; González-Barrio, Miguel A.

2013-12-01

Barandiaran, V A Chernenko, E Cesari, D Salas, J Gutierrez and P Lazpita Magnetism in nanoparticles: tuning properties with coatingsPatricia Crespo, Patricia de la Presa, Pilar Marín, Marta Multigner, José María Alonso, Guillermo Rivero, Félix Yndurain, José María González-Calbet and Antonio Hernando Ordered arrays of metal-organic magnets at surfacesSara Barja, Daniel Stradi, Bogdana Borca, Manuela Garnica, Cristina Díaz, Josefa M Rodriguez-García, Manuel Alcamí, Amadeo L Vázquez de Parga, Fernando Martín and Rodolfo Miranda Surface defects and their influence on surface propertiesO Rodríguez de la Fuente, M A González-Barrio, V Navarro, B M Pabón, I Palacio and A Mascaraque

Estudos dos agrupamentos vegetativos relacionados com as áreas onde foram efetuadas as pesquisas sôbre a febre amarela silvestre no Município de Passos, Estado de Minas Gerais

Directory of Open Access Journals (Sweden)

Henrique P. Veloso

1947-09-01

fry Rain Forest, which seems to be growing under optimum conditions. The Scrub is thus limited to small belts on the calcareous mountains and on sandy soils with alcaline depths (pH abo¬ve 7 which do not retain enough moisture for the Rain Forest that is progres¬sively restricting the area occupied by Scrub. In view of the topographic and present climatic conditions the Rain Forest must consequently be regarded as the regional climax. The presence of ecologically contradictory elements and associations shows that the real problem is that of the fluctuations of the climate of Passos or even of Minas Geraes during the quaternary and recent periods (DAN-SEREAU, P. : 3, a subject on which little is known and which is tied to the evolution of the climate of Brazil (OLIVEIRA, E. : 4 . The transformation of Scrub into Rain Forest has been - observed by the author before, in other parts of Brazil (VELOSO, PL P.: 5 . It seems probable that the Rio Grande has also greatly influenced the change of the regional vegetation, by invading areas of Scrub and dislocating the limit of the Pluvial climate towards the Canastra Range, though there are remnants of Scrub (postclimax transfor¬med into secondary open country (disclimax, fig. 5 by human devastation and the setting of fire to the land. VEGETATION GROUPS OF THE PLUVIAL TYPE. The map of the region also shows that at the present time the small patches of forest (whether devasted or intact occupy the least accessible places, such as valleys, peaks and abrupt slopes (fig. 2. Even these are now being destroyed, so that in the near future this forested region will be en¬tirely reduced to poor pasture land unless energetic measures of conservation are undertaken in time. The Special Service for Prophylaxis against Yellow Fever installed two of their four Stations for the Capture of Mosquitos in this area, one of them at Batatal and the other at Cachoeira, which have separate formations each of them composed of several associations

Aspectos del dengue investigados en Santander

Directory of Open Access Journals (Sweden)

Ruth Martínez

2004-03-01

-family: Arial">5. HARRIS E., SANDOVAL E., XET-MULL A.M., JOHNSON M., RILEY LW. Rapid subtyping of dengue viruses by restriction site-specific (RSS-PCR. Virology 1999; 253: 86- 95.

6. MIAGOSTOVICH M, DOS SANTOS FB., GUITIERREZ M, RILEY LW, HARRIS E. Rapid subtyping of dengue virus serotypes 1 and 4 by restriction site-specific PCR. J Clin Micobiol 2000; 28:1286-1289.

7. VAUGHN DW, GREEN S, KALAJANAROOJ S, INNIS BL, NIMMANNITYA S, SUNTAYAKORNS S, et al. Dengue viremia titer, antibody, response pattern and virus serotype correlate with disease severity. J Infect Dis 2000; 181: 2-9.

8. VAUGHN DW, GREEN S, KALAYANAROOJ S, INNIS BL, NIMMANNITYA S, SUNTAYAKORN S, et al. Dengue in Early phase: viremia and antibody responses. J Infec Dis 1977; 176: 322-30.

9. YAMADA KI, TAKASAKI T, NAWA M, KURANE I. Virus isolation as one of the diagnostic method por dengue virus infection. J Clin Virol 2002; 24:203-09.

10. BALMASEDA A, SANDOVAL E, PÉREZ L, GUTIÉRREZ CM, HARRIS E. Application of molecular typing techniques in the 1998 dengue epidemic in Nicaragua. Am J Trop Med Hyg. 1999; 6: 893-7.

Monitoring and Assessment of Military Installation Land Condition under Training Disturbance Using Remote Sensing

Science.gov (United States)

Rijal, Santosh

monitor the land condition of military land and compare it with non-military land. The results from this study can provide FR land managers with the information of the spatial variation and temporal trend of land condition in FR. Fort Riley land managers can also use this method for monitoring their land condition at a very low cost. This method can thus be applied to other military installations as well as non-military lands. Furthermore, one of the most significant environmental problems in military installations of the U.S. is the formation of gullies due to the intensive use of military vehicle. However, to our knowledge, no remote sensing based method has been developed and used to assess the detection of gullies in military installations. In the second paper of this dissertation, light detection and ranging (LiDAR) derived digital elevation model (DEM) of 2010 and WorldView-2 images of 2010 were used to quantify the gullies in FR. This method can be easily applied to assess gullies in non-military installations. On the other hand, modeling the land condition of military installation is critical to understand the spatial and temporal pattern of military training induced disturbance and land recovery. In the third paper, it was assumed that the military training induced disturbance was spatially auto-correlated and thus four regression models including i) linear stepwise regression (LSR) ii) logistic regression (LR), iii) geographically weighted linear regression (GWR), and iv) geographically weighted logistic regression (GWLR) were developed and compared using remote sensing image derived spectral variables for years 1990, 1997, 1998, 1999, and 2001. It was found that the spatial distribution of the military training disturbance was well demonstrated by all the regression models with higher intensities of military training disturbance in the northwest and central west parts of the installation. Compared to other regression models, GWR accurately estimated the land

EDITORIAL Teoria do documentário ---> Marcius Freire, Manuela Penafria DOSSIER TEMÁTICO Novos territórios do documentário ---> Arlindo Machado Perspectivas da análise narrativa no cinema: por uma abordagem da narrativa no filme documentário ---> Sandra Straccialano Coelho Fotografía y realidad: notas para una fenomenología del cine documental ---> Rubén Dittus Retórica e pragmática do documentário: a experiência de realização cinematográfica compartilhada do projeto Vídeo nas Aldeias

Directory of Open Access Journals (Sweden)

Juliano José de Araújo Juliano José de Araújo Juliano José de Araújo

2011-12-01

Full Text Available The article examines the experience of shared filmmaking (preparation,shooting and editing of the Brazilian Project Video in the Villages from the analysis ofthree documentaries directed by indigenous filmmakers. It analyzes the rhetoric choices ofthe documentaries, as the mise en scène, the first person narration and the voice-over etc.,according to their rhetoric and pragmatic dimensions, as defined by Plantinga (1997.

The Study on the Physical Properties of Blazar Jets

Science.gov (United States)

Kang, S. J.

2017-09-01

Active galactic nuclei (AGNs) belong to a special class of active galaxies, and have violent active phenomena and intense physical processes in the nuclei. Blazar is a subclass of AGNs, and has a relativistic jet with a small jet viewing angle. Therefore, the boosting effect is very important, and almost all the observed radiation is dominated by the jet. The relativistic jet physics is not very clear yet, such as the jet formation, collimation, and matter content etc. The multi-waveband radiation of blazar is dominated by jet, which provides an ideal laboratory for studying the jet physics. The first chapter of this thesis introduces the recent progress of AGNs and blazars. We further introduce the jet model that commonly used in blazars in the second chapter. In the third chapter, we fit simultaneously (or quasi-simultaneously) the multi-waveband spectral energy distributions (SEDs) for a sample of low-synchrotron-peaked (LSP) blazars with the jet model and χ2 procedure, which takes into account different soft photon fields (broad line region or a molecular torus). We find that the SED fitting with an external soft photon from IR torus is systematically better than that from the broad line region (BLR) based on a χ2 test, which suggests that the γ-ray emitting region most possibly stays outside the BLR. The minimum electron Lorentz factor, γmin, is constrained from the modeling of these LSP blazars with good soft X-ray data, and in a range from 5 to 160 (with a median value of 55), which plays a key role in jet power estimation. Assuming one-to-one ratio of proton and electron, we find that the jet power for LSP blazars is systematically higher than that of Fanaroff-Riley type II (FR II) radio galaxies. A possible reason for this is that there are some positrons in the jets of these blazars. If this is the case, the jet power will be reduced. Therefore, we propose a mixed composition of e±-p in the jets of these LSP blazars. If we assume that the jet power

Inorganic Phosphorus Fractions and Their Relationships with Soil Characteristics of Selected Calcareous Soils of Fars Province

Directory of Open Access Journals (Sweden)

abolfazl azadi

2017-01-01

sequential fractionation scheme was preformed according to the method described by Jiang and Gu (1989. Olsen-P fraction that was extracted by NaHCO3 (Olsen and Sommers 1982 was regarded as P-availability index. Also, Total-P by perchloric acid (HClO4 digestion (Sparks; 1996 and organic P were determined.. All of the extraction procedures were performed in duplicate and the amounts of P were colorimetrically measured in the supernatants by the ascorbic acid method of Murphy and Riley (1962.The relationships between forms of P and some of the soil properties were established using correlation method. Results and Discussion: The chemical data of the soils showed that soils were calcareous with CCE range between 9.94 to 74.27 % ( average 51.10% and pH range between 7.02 to 8.36 (average 7.85. Also, the amounts of CEC were between 5.35 to 29.39 cmol (+ kg-1(average 16.68 cmol (+ kg-1. The results showed a wide range in content of Phosphorus fractions. The amount of total Phosphate ranged from 301.87 to 1458.68 mg kg-1 with an average of 626.63 mg kg-1 . Calcium Phosphate ranged from 147.83 to 666.90 mg kg-1 with an average of 324.79 mg kg-1, that comprised 85 and 52 percent of inorganic and total Phosphorus, respectively. The amount of Fe-P ranged from 0.38 to 59.18 mg kg-1 with an average of 7.56 mg kg-1 that comprised 13.64 and 8.34 percent of inorganic and total Phosphorus, respectively. Also, the amount of Al-P ranged from 20.49 to 123.09 mg kg-1 with an average of 52.28 mg kg-1that comprised 1.97 and 1.21 percent of inorganic and total Phosphorus, respectively. The results of correlation study showed that available Phosphorus was significantly correlated with Ca2-P, Ca8-P, Al-P, Ca10-P, and Pt (total phosphorus. So, in calcareous soils, awareness of soil properties and phosphorus fractions and their relationships are important for evaluation of phosphorous status in soil and understanding of soil chemistry that influence soil fertility. Conclusion: The relative abundance of

Resúmenes de las tesis de grado en floricultura realizadas en la Facultad de Agronomía, Universidad Nacional de Colombia. Bogotá D.C., entre 1981 y 1993

Directory of Open Access Journals (Sweden)

Casas Eduardo

1992-12-01

para el control integrado de la mosca blanca de los invernaderos (Trialeurodes vaporariorum (Westwood, bajo condiciones de la sabana de Bogotá. / Asociación de Onychiurus armatus Tullberg y Fusarium oxysporum Schl. f. sp. dianthi, con relación a los daños causados en el cultivo del clavel (Dianthus caryophyllus L. /  Cría y comportamiento en campo de Trichogramma cerca pretiosum Riley para el control de Copitarsia consueta Walker. / Curvas poblacionales y calibración de trampas para Liriomyza huidobrensis (Blanchard, plaga en Gypsophila paniculata bajo invernadero en la sabana de Bogotá. / Determinación del numero optimo de trampas para la evaluación del minador del crisantemo Liriomyza trifolii Burgess bajo invernadero. / Dispersión de la población de Tetranychus cinnabarinus (Boisduval y respuesta a la aplicación de tres acaricidas en una plantación comercial de clavel miniatura, durante épocas seca y lluviosa. / ...

Effect of Different Diets of Flour Moth on its Parasitoid Wasp Fitness, Trichogramma brassicae (Hym.:Trichogrammatidae

Directory of Open Access Journals (Sweden)

Paria Soltaninejad

2017-03-01

conducted with 10 replicates for each treatment at 25±1°C, 60±5 % RH and a photoperiod of 14 L: 10 D. Each glass tube (8cm diameter, 11 cm height as an experimental unit was consisted of 40 and 20 wasps for the second and fourth generation of the parasitoid and was provided with the card carried 200 and 100 eggs of MFM, respectively. The number of emerged parasitoid wasps along with the number of parasitized eggs on each card w recorded daily till the death of the adult wasp. Also, the number of emerged wasps and females were counted. Results and Discussion: The results showed that the lowest parasitism rate was occurred in the treatment I (9.8±0.011 % for the second generation of the parasitoid. But, in the fourth generation, the treatment II and III presented the highest (11.05±1.23 % and lowest parasitism rate (5.58±0.70%, respectively. In the previous report, the parasitism rate of T. brassicae fed on eggs of Sitotroga cerealella was assessed higher than that in the present study, which occurs probably because of the differences in insect host. The results obtained from the second generation showed that the variation in the diets had significant effect on the percentage of parasitoid emergence and the highest percentage of the parasitoid emergence was observed in treatment I (64.5±4.78 % but there was no significant difference between the treatment I and III. The percentage of adult emergence of Trichogramma pretiosum Riley (28 and Trichogramma maidis Pint, et Voeg. (13 reared on the MFM eggs were higher than the present research. The difference may be related to the parasitoid density and the wasp species. However, the variation in diets had no significant effect on the percentage of parasitoid emergence in fourth generation and sex ratio in both generations. In second generation, there were no significant differences among the treatments in daily oviposition of the female parasitoid but in fourth generation, various diets had significant effect. The highest and

ELSEPA—Dirac partial-wave calculation of elastic scattering of electrons and positrons by atoms, positive ions and molecules

Science.gov (United States)

Salvat, Francesc; Jablonski, Aleksander; Powell, Cedric J.

2005-01-01

-103) obtained from multiconfiguration Dirac-Fock self-consistent calculations. For comparison purposes, three simple analytical approximations to the electron density of neutral atoms (corresponding to the Thomas-Fermi, the Thomas-Fermi-Dirac and the Dirac-Hartree-Fock-Slater models) are also included. For calculations of elastic scattering by ions, the electron density should be provided by the user. The exchange potential for electron scattering can be selected among three different analytical approximations (Thomas-Fermi, Furness-McCarthy, Riley-Truhlar). The offered options for the correlation-polarization potential are based on the empirical Buckingham potential. The imaginary absorption potential is calculated from the local-density approximation proposed by Salvat [Phys. Rev. A 68 (2003) 012708]. Program summaryTitle of program:ELSEPA Catalogue identifier: ADUS Program summary URL:http://cpc.cs.qub.ac.uk/cpc/summaries/ADUS Program obtainable from: CPC Program Library, Queen's University of Belfast, N. Ireland License provisions: none Computer for which the program is designed and others in which it is operable: Any computer with a FORTRAN 77 compiler Operating systems under which the program has been tested: Windows XP, Windows 2000, Debian GNU/Linux 3.0r0 (sarge) Compilers:Compaq Visual Fortran v6.5 (Windows); GNU FORTRAN, g77 (Windows and Linux) Programming language used: FORTRAN 77 No. of bits in a word: 32 Memory required to execute with typical data: 0.6 Mb No. of lines in distributed program, including test data, etc.:135 489 No. of bytes in distributed program, including test data, etc.: 1 280 006 Distribution format: tar.gz Keywords: Dirac partial-wave analysis, electron elastic scattering, positron elastic scattering, differential cross sections, momentum transfer cross sections, transport cross sections, scattering amplitudes, spin polarization, scattering by complex potentials, high-energy atomic screening functions Nature of the physical problem: The code

Countdown for the Cluster quartet

Science.gov (United States)

2000-07-01

from each ESA member state. These finalists and their families have all won a 3-day trip to attend a special Cluster II launch event in one of these ESA establishments: * ESRIN (near Rome, Italy): winners from France, Ireland, Belgium. * VILSPA (near Madrid, Spain): winners from The Netherlands, Norway, Sweden, Finland. * ESTEC (near Amsterdam, The Netherlands): winners from Germany, Denmark, Switzerland, Austria. * ESOC (in the Rhine Valley, Germany): winners from Italy, Spain, Portugal, United Kingdom. The Lucky 15. The lucky national winners are: Austria: VENTO, NUBO, FULMO, PLUVO entered by Andreas Rosenstingl (Vienna, A). Belgium: ALBATROS, EAGLE, FALCON, HAWK entered by André Borremans (Lembeek, B). Denmark: ORIENTÁLIS, OCCIDENTÁLIS, AQUILÓNIUS, AUSTRÁLIS entered by Mia Stampe (Copenhagen, DK). Finland: UKKO, ILMATAR, KOKKO, LOUHI entered by Ismo Hirvonen (Tampere, FI) France: ADAGIO, ALLEGRO, LARGO, VIVACE entered by Daniel Lellouch (c/o Rehovot, Israel) Germany: TRISTAN & ISOLDE, ROMEO & JULIA entered by Manuela Saal (Köln, D) Ireland: IMBOLC, BELTAINE, LUGHNASA, SAMHAIN entered by Grainne Duncan (Dublin, IR). Italy: GEA, URANO, TETI, CRONO entered by Paola Benna (Avigliana-To, I). Netherlands: KIN, UINAL, TUN, KATUN entered by Ben Jasper Fayer (Hoogeven, NL). Norway: CHLOROS, ERYTHROS, AUREUS, LUTEUS entered by Joar Vatnaland (c/o Leeds, UK). Portugal: IXCHELL, ITZAMNA, MAUINA, RAINBOW entered by Carlos Fernando Carvalhido Oliveira (Porto, P). Spain: DIVEE, BEEDY, EEROT, BROT entered by Sergi Porter (Barcelona, E). Sweden: FLUTE, VIOLIN, CELLO, PIANO entered by Ola Carlström (Huddige, SW). Switzerland: SOLÉA, LUNÉA, EOLIA, ONDÉA entered by Luciana Favre (Riddes, CH). United Kingdom: TANGO, RUMBA, SALSA, SAMBA entered by Raymond Cotton (Bristol, UK). One of these lucky finalists will go on to gain a special grand prize when the winning names for the four spacecraft are announced at the ESOC event to mark the first Cluster II launch. These names will

Mediano, Fernando Rodríguez et Felipe, Helena de (eds., El protectorado español en Marruecos. Gestión colonial e identidades, Estudios Arabes e Islámicos, Monografías, 4, CSIC, Madrid, 2002. Felipe, Helena de ; López-Ocon, Leoncio ; Marín, Manuela (eds, Angel Cabrera : ciencia y proyecto colonial en Marruecos, Estudios Arabes e Islámicos, Monografías, 7, CSIC, Madrid.García-Arenal, Mercedes ; Mediano, Fernando Rodríguez ; El Hour, Rachid (eds.,  Cartas Marruecas. Documentos de Marruecos en archivos Españoles (Siglos XVI-XVII, Estudios Arabes e Islámicos, Monografías, 3, CSIC, Madrid, 2002.

Directory of Open Access Journals (Sweden)

Thierry Desrues

2006-03-01

Full Text Available Ironie de l’histoire, le regain d’intérêt en Espagne pour le Maroc, en général, et pour le Protectorat espagnol, en particulier, coincide avec la consolidation d’un phénomène récent, à savoir : l’immigration marocaine. L’importance du « retour des morisques » tout au long des années 1990, ainsi que la participation de jeunes immigrés marocains dans les attentats du 11 mars 2004 rejoignent l’existence de contentieux territoriaux non-résolus (Sahara, Ceuta et Melilla ou encore la pêche parmi l...

EDITORIAL: Announcing the 2011 Measurement Science and Technology Outstanding Paper Awards Announcing the 2011 Measurement Science and Technology Outstanding Paper Awards

Science.gov (United States)

Foss, John; Dewhurst, Richard; Fujii, Kenichi; Regtien, Paul; Tatam, Ralph

2012-06-01

flow. 2011 Award Winners—Fluid Mechanics Acoustic tomographic imaging of temperature and flow fields in air Manuela Barth and Armin Raabe University of Leipzig, Institute for Meteorology, Stephanstraße 3, 04103 Leipzig, Germany This paper [4] provides a valuable measurement strategy for volumetric measurements of the velocity and temperature fields in an airflow over large fields. Given that the speed of sound in the medium is influenced by humidity, the recovered temperature is termed 'acoustic virtual temperature' (Tav). The method is demonstrated for a volume of order 1 m3. It can, in principle, be scaled to a much larger domain. The inferred quantities, T(x, y, z, t) and bar v(x, y, z, t), are not intended to replace discrete point measurements (which can be obtained with substantially greater accuracy albeit with intrusive probes or added scattering particles). Rather, the time-resolved measurements will likely be very valuable for HVAC or micro-meteorological, etc measurements. The supporting theory and the respective literature base are succinctly presented. The experimental strategy, in which pairs of counter-propagating acoustic emitters/receivers criss-cross the measurement domain, is supported by the authors' form of an algebraic tomographic reconstruction technique. The demonstration experiment and representative results are clearly presented. The selection committee anticipates a positive response by those investigators whose application problem is compatible with the capabilities offered by this paper. 2011 Award Winner—Precision Measurement Diameter measurements of polystyrene particles with atomic force microscopy J Garnaes Danish Fundamental Metrology, Matematiktorvet 307, DK-2800 Kgs. Lyngby, Denmark This paper [5] describes a geometric diameter measurement of polystyrene spheres with nominal diameters of about 100 nm using atomic force microscopy (AFM). Although electron microscopy has conventionally been used for small diameter measurements

BOOK REVIEW: Advances in Electronic Marketing,

Directory of Open Access Journals (Sweden)

Reviewed by Dr. Ayhan YILMAZ

2005-10-01

understanding of the concepts, theories, practices, and current stateof electronic marketing.AcknowledgementsWe wish to thank the staff of Idea Group Publishing, most notably Mehdi Khosrow-Pour,Jan Travers, and Michele Rossi, for consistent support during the editing process. A veryspecial thanks is extended to the College of Business and Marketing Program at JamesMadison University for providing assistance. The Advances in Electronic Marketing bookproject would not be possible without the hard work and dedication of the contributingauthors and reviewers. All chapters appearing in this book were reviewed by the externalreviewers through a double-blind review process. The external reviewers did not knowthe authors’ names or affiliations. The chapter selection process was quite competitiveand went through several revisions based on comments provided by reviewers andeditors. Although we evaluated 33 chapters (70 authors for the book, only 16 chapters(34 authors were accepted for final inclusion.Irvine Clarke III and Theresa B. FlahertyJames Madison UniversitySECTION I:THE BUYER BEHAVIOR OF ONLINE CONSUMERS? Chapter I. Attracting and Retaining Online Buyers: Comparing B2C and B2BCustomers? Eileen Bridges, Kent State University, Ronald E. Goldsmith, Florida StateUniversity, and Charles F. Hofacker, Florida State University? Chapter II. Unlocking E-Customer Loyalty? Alvin Y.C. Yeo and Michael K.M. Chiam, University of Western Australia? Chapter III. Drivers and Barriers to Online Shopping: The Interaction ofProduct, Consumer, and Retailer Factors? Francesca Dall'Olmo Riley, Kingston University Business School, DanieleScarpi Universita' di Bologna, and Angelo Manaresi, Universita' di Bologna? Chapter IV. eCRM: Understanding Internet Confidence and the Implicationsfor Customer Relationship Management? Terry Daugherty, University of Texas at Austin, Matthew Eastin, Ohio StateUniversity, and Harsha Gangadharbatla, University of Texas at Austin166SECTION II:E-MARKETING STRATEGY? Chapter

EDITORIAL: Student undergraduate laboratory and project work

Science.gov (United States)

Schumacher, Dieter

2007-05-01

that new experiments which illustrate both fundamental physics and modern technology can be realized even with a small budget. Traditional labwork courses often provide a catalogue of well known experiments. The students must first learn the theoretical background. They then assemble the setup from specified equipment, collect the data and perform the default data processing. However, there is no way to learn to swim without water. In order to achieve a constructivist access to learning, 'project labs' are needed. In a project labwork course a small group of students works as a team on a mini research project. The students have to specify the question of research, develop a suitable experimental setup, conduct the experiment and find a suitable way to evaluate the data. Finally they must present their results e.g. in the framework of a public poster session. Three contributions refer to this approach, however they focus on different aspects: 'Project laboratory for first-year students' by Gorazd Planinšič, 'RealTime Physics: active learning laboratories' by David Sokoloff et al and 'Labs outside labs: miniprojects at a spring camp for future physics teachers' by Leos Dvorák. Is it possible to prepare the students specifically for project labwork? This question is answered by the contribution 'A new labwork course for physics students: devices, methods and research projects' by Knut Neumann and Manuela Welzel. The two main parts of the labwork course cover first experimental devices (e.g. multimeters, oscilloscopes, different sensors, operational amplifiers, step motors, AD/DA-converters). Then subjects such as data processing, consideration of measurement uncertainties, keeping records or using tools like LABVIEW etc are focused on. Another concrete proposal for a new curriculum is provided by James Sharp et al, in 'Computer based learning in an undergraduate physics laboratory: interfacing and instrument control using MATLAB'. One can well imagine that project labs

Preface: SciDAC 2006

Science.gov (United States)

Tang, William M., Dr.

2006-01-01

/output, management, movement, and storage challenges. If scientific discovery is expected to keep apace with the continuing progression from tera- to petascale platforms, the vital alliance between domain scientists, applied mathematicians, and computer scientists will be even more crucial. During the SciDAC 2006 Conference, some of the future challenges and opportunities in interdisciplinary computational science were emphasized in the Advanced Architectures Panel and by Dr. Victor Reis, Senior Advisor to the Secretary of Energy, who gave a featured presentation on `Simulation, Computation, and the Global Nuclear Energy Partnership.' Overall, the conference provided an excellent opportunity to highlight the rising importance of computational science in the scientific enterprise and to motivate future investment in this area. As Michael Strayer, SciDAC Program Director, has noted: `While SciDAC may have started out as a specific program, Scientific Discovery through Advanced Computing has become a powerful concept for addressing some of the biggest challenges facing our nation and our world.' Looking forward to next year, the SciDAC 2007 Conference will be held from June 24-28 at the Westin Copley Plaza in Boston, Massachusetts. Chairman: David Keyes, Columbia University. The Organizing Committee for the SciDAC 2006 Conference would like to acknowledge the individuals whose talents and efforts were essential to the success of the meeting. Special thanks go to Betsy Riley for her leadership in building the infrastructure support for the conference, for identifying and then obtaining contributions from our corporate sponsors, for coordinating all media communications, and for her efforts in organizing and preparing the conference proceedings for publication; to Tim Jones for handling the hotel scouting, subcontracts, and exhibits and stage production; to Angela Harris for handling supplies, shipping, and tracking, poster sessions set-up, and for her efforts in coordinating and

Preface: SciDAC 2005

Science.gov (United States)

Mezzacappa, Anthony

2005-01-01

the natural world is realized. For the computational scientist, enabling such workflows presents myriad, signiflcant challenges, and it is computer scientists that are called upon at such times to address these challenges. Simulations are currently generating data at the staggering rate of tens of TeraBytes per simulation, over the course of days. In the next few years, these data generation rates are expected to climb exponentially to hundreds of TeraBytes per simulation, performed over the course of months. The output, management, movement, analysis, and visualization of these data will be our key to unlocking the scientific discoveries buried within the data. And there is no hope of generating such data to begin with, or of scientific discovery, without stable computing platforms and a sufficiently high and sustained performance of scientific applications codes on them. Thus, scientific discovery in the realm of computational science at the TeraScale and beyond will occur at the intersection of science, applied mathematics, and computer science. The SciDAC Program was constructed to mirror this reality, and the pages that follow are a testament to the efficacy of such an approach. We would like to acknowledge the individuals on whose talents and efforts the success of SciDAC 2005 was based. Special thanks go to Betsy Riley for her work on the SciDAC 2005 Web site and meeting agenda, for lining up our corporate sponsors, for coordinating all media communications, and for her efforts in processing the proceedings contributions, to Sherry Hempfling for coordinating the overall SciDAC 2005 meeting planning, for handling a significant share of its associated communications, and for coordinating with the ORNL Conference Center and Grand Hyatt, to Angela Harris for producing many of the documents and records on which our meeting planning was based and for her efforts in coordinating with ORNL Graphics Services, to Angie Beach of the ORNL Conference Center for her efforts

NOVOS MODELOS ORGANIZACIONAIS E REPERCUSSÕES NA GESTÃO DOS RECURSOS HUMANOS: ESTUDO DE CASO EM SALVADOR-BA

Directory of Open Access Journals (Sweden)

Sônia R. P. Fernandes

2003-05-01

-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

RESUMO

As transformações no mundo do trabalho têm impulsionado novos modelos organizacionais, refletindo nas práticas gerenciais e na gestão de recursos humanos (DRUCK, 1999; MENDES, 1997; VELOSO 1999. Este estudo objetivou analisar uma organização do segmento de serviços e suas estratégias gestão dos recursos humanos. A investigação adotou o desenho de corte transversal e foi estruturada em dois momentos. Os resultados indicam que o modelo organizacional é tipico da reorganização produtiva - estrutura central com poucos trabalhadores e terceirização dos serviços. Também, a organização assemelha-se ao modelo simples (Robbins e apresenta características predominantes da metáfora da máquina (Morgan. Finalmente, as estratégias de gestão de recursos humanos, especialmente a partir do estilo de liderança adotado, tëm refletido no clima organizacional que foi avaliado pelos trabalhadores como positivo. Entretanto, as estratégias de desenvolvimento de recursos humanos - avaliação de desempenho e remuneração - não correspondem ao preconizado nas atuais concepções sobre gestão de pessoas.

Palavras-chave: desenvolvimento recursos humanos; gestão recursos humanos; modelos organizacionais

ABSTRACT

The transformations in the workplace have propelled new organizational models, reflecting on managerial practices and resource management (DRUCK, 1999; MENDES, 1997; VELOSO, 1999

CBIOS Science Sessions - 2016 - Part I and III National Symposium on Nanoscience and Biomedical Nanotechnology - Proceedings

Directory of Open Access Journals (Sweden)

L. Monteiro Rodrigues, et al.

2016-05-01

ências em Animais de Laboratório, Isabel V. Figueiredo Presidente da Sociedade Portuguesa de Fitoterapia, António Proença da Cunha Director da Escola de Ciências e Tecnologias da Saúde, Luís Monteiro Rodrigues (Presidente do Simpósio Scientific Commitee /Comissão Científica António José Almeida, Universidade de Lisboa Catarina Pinto Reis, Universidade Lusófona de Humanidades e Tecnologias Domingos Ferreira, Universidade do Porto Luís Monteiro Rodrigues, Universidade Lusófona de Humanidades e Tecnologias Sérgio Simões, Universidade de Coimbra Organizing Commitee /Comissão Organizadora Ana Sofia Fernandes Catarina Pinto Reis Lídia palma Manuela Teixeira Marina Baptista Marisa Nicolai Patrícia Rijo Organization /Organização Escola de Ciências e Tecnologias da Saúde (ECTS da U. Lusófona de Humanidades e Tecnologias ALIES – Associação Lusófona para o Desenvolvimento do Ensino e Investigação das Ciências da Saúde CBIOS – Centro de Investigação em Biociências e Tecnologias da Saúde Open Session | Sessão de abertura Reitor da Universidade Lusófona de Humanidades e Tecnologias, Mário Moutinho Diretor da Escola de Ciências e Tecnologias da Saúde, Luís Monteiro Rodrigues (Presidente do Simpósio Vice-presidente do Conselho de Enfermagem, Maria José Costa Dias Presidente da Sociedade Portuguesa de Ciências em Animais de Laboratório, Isabel V. Figueiredo 1st Session |Sessão 1 Nanomedicine | Nanomedicina Chairman | Moderador - Catarina Pinto Reis Speakers | Prelectores Jorg Kreuter Sandra Simões Catarina Silva 1st Session (continuation | Sessão 1 (continuação Nanomedicine | Nanomedicina Chairman | Moderador - Luís P. Fonseca Speakers | Prelectores Elias Fattal Pedro Viana Baptista Diogo Matias 2st Session | Sessão 2 Biomedical nanotechnologies | Nanotecnologias biomédicas Chairman | Moderador - Hugo Alexandre Ferreira Speakers | Prelectores Sónia Fraga Lino Ferreira Filipe Pereira 3st Session | Sessão 3 Nanochemistry and

Preface: SciDAC 2007

Science.gov (United States)

Keyes, David E.

2007-09-01

even the `Right-brain Night' featuring artistic statements, both reverent and irreverent, by computational scientists, inspired by their work. The organizers thank the sponsors for their generosity in attracting participants to these informal occasions with sumptuous snacks and beverages: AMD, Cray, DataDirect, IBM, SGI, SiCortex, and the Institute of Physics. A conference as logistically complex as SciDAC 2007 cannot possibly and should not be executed primarily by the scientists, themselves. It is a great pleasure to acknowledge the many talented staff that contributed to a productive time for all participants and nearperfect adherence to schedule. Chief among them is Betsy Riley, currently detailed from ORNL to the program office in Germantown, with degrees in mathematics and computer science, but a passion for organizing interdisciplinary scientific programs. Betsy staffed the organizing committee during the year of telecon meetings leading up to the conference and masterminded sponsorship, invitations, and the compilation of the proceedings. Assisting her from ORNL in managing the program were Daniel Pack, Angela Beach, and Angela Fincher. Cynthia Latham of ORNL performed admirably in website and graphic design for all aspects of the online and printed materials of the meeting. John Bui, John Smith, and Missy Smith of ORNL ran their customary tight ship with respect to audio-visual execution and capture, assisted by Eric Ecklund and Keith Quinn of the Westin. Pamelia Nixon-Hartje of Ambassador Services was personally invaluable in getting the most out of the hotel and its staff. We thank Jeff Nichols of ORNL for managing the primary subcontract for the meeting. The SciDAC tutorial program was a joint effort of Professor John Negele of MIT, David Skinner, PI of the SciDAC Outreach Center, and the SciDAC 2007 Chair. Sponsorship from the Outreach Center in the form of travel scholarships for students, and of the local area SciDAC university delegation of BU, Harvard