1,181 research outputs found
QCD tests in collisions at TeV using the ATLAS detector at the LHC
No full textThe Large Hadron Collider facility at CERN, and in particular the ATLAS detector, have provided a testing ground for high energy physics at a level which couldn't be explored in previous experiments. It has not only increased the centre-of-mass energy to the up to now highest value of TeV but also has had an excellent luminosity performance during these years of data taking. This has been especially important for the discovery of the Higgs boson, as well as for allowing searches of new physics and studies of the properties of, up to now, poorly known final states as production. In this thesis, data taken during the year 2011 have been analyzed to probe the strong sector of the Standard Model. The parton shower and hadronisation models have been tested in this thesis by means of the measurement of jet shapes in final states. Relying on the top-quark decays and the subsequent boson hadronic decays , samples with very high purity of - and light-quark induced jets have been selected. This fact, together with the fine granularity of the ATLAS calorimeter system, has allowed us to compare -jet shapes with those of light jets (ATLAS Collaboration, Eur. Phys. J. C \textbf{73} 2676 (2013)) and to determine the -quark mass from the so-called angular screening effects, clearly visible in these data (J. Llorente and J. C., Nucl. Phys. B \textbf{889} 401 (2014)). Furthermore, -jets are found to be broader than light jets and therefore -jet shapes may be used for tagging purposes. The value of the strong coupling constant at the -pole scale has also been measured in this thesis. This constant plays a key role in our understanding of nature at the subatomic scale, as it determines the strength of gluon radiation, as well as being responsible for the stability of nuclear matter. We have selected a sample of multijet events by demanding the scalar sum of transverse momenta of the two leading jets to be greater than 500 GeV while the transverse momenta of the subleading jets is required to be above 50 GeV. All jets are required to lie in the central part of the calorimeter, i.e. . We have performed a measurement of transverse energy-energy correlations, which are the natural extension of the energy-energy correlation function which was popular in colliders at PETRA-PEP and LEP-SLC energies. We have performed a comparison between the data (ATLAS Collaboration, arXiv:1508.01579 [hep-ex]) with NLO pQCD calculations (A. A., F. B., J. Llorente and W. W., Phys. Rev. D \textbf{86} 114017 (2012)) which allows us to determine \alpha_s(m_Z) = 0.1173 \pm 0.0010 \mbox{ (exp.)} ^{+0.0065}_{-0.0026} \mbox{ (theo.)}
El Formativo temprano en la cuenca baja del río Pánuco: fases Chajil y Pujal. 28. Arqueología
No full textArias Melo Granados, Martha, “El Formativo en la Cuenca Baja del Pánuco”, México, tesis ENAH, 1982.Blanco, Alicia, Informe de los restos óseos de animales del Proyecto Huaxteca, México, DSA, INAH, 1983.Castañeda Cerecero, Laura, “Altamirano: Un sitio del Formativo al Noreste de México”, México, tesis ENAH, 1992.Ceja Tenorio, Jorge Fausto, Paso de la Amada. An Early Preclassic Site in the Soconusco, Chiapas, México, USA, NWAF núm. 45, 1985.Clark, John E. y Michael Blake, 1989. “El origen de la civilización en Mesoamérica: Los Olmecas y Mokaya del Soconusco de Chiapas, México”, en: M. Carmona (coord.), El Preclásico o Formativo. Avances y Perspectivas, México, MNA/INAH, 1989.Ford, J. A., A Comparison of Formative Cultures in the Americas. Diffusion or the Physical Unity of Man, USA, Smithsonian Institution Press, Washington, 1969.García Cook, Ángel, “Las cerámicas más tempranas en México”, en: Revista de Arqueología Americana, USA, 1998.García Cook, Ángel y B. Leonor Merino Carrión, Notas sobre “Caminos y Rutas de Intercambio al Este de la Cuenca de México”, en: Comunicaciones, núm. 14, México, FACI, 1977, pp. 71-82.____, “Investigación Arqueológica en la Cuenca Baja del Pánuco”, en: Homenaje a
José Luis Lorenzo, México, INAH, 1989, (Científica, 188).“Cronología para el periodo formativo en la Cuenca baja del Río Pánuco”, en: V Coloquio Pedro Bosch Gimpera, México, UNAM, en prensa.“El incio de la producción alfarera en el México Antiguo”, en Merino Carrión y García Cook (coords.), La producción alfarera en el México Antiguo, México, INAH, en prensa.García Samper, Asunción, “La Cerámica en la Huaxteca de la Planicie Costera”, México, tesis ENAH, 1982.Guzmán, Ana Fabiola y Óscar J. Polaco, “Los peces del sitio arqueológico de Altamirano, Veracruz”, Arqueología 27, México, INAH, enero-junio 2002.Lowe, Gareth, “Appendix Results of the 1965 Investigations at Altamira”, en: Altamira y Padre Piedra: Early Preclassic Sites in Chiapas, México, USA, By D. F. Green and G. W. Lowe, NWAF núm. 15, 1967, pp. 81-130.____, The Early Preclassic Barra Phase of Altamira, Chiapas. A Review with New Data, USA, NWAF núm. 38, 1975.MacNeish, Richard S., An early site near Pánuco, Veracruz (Transactions of the American Philosophical Society), USA, vol. XLIV, part 5, 1954.____, Preliminary Archaeological Investigations in the Sierra of Tamaulipas, México (Transactions in the American Philosophical Society), USA, Philadelphia, vol. 48, part. 6, 1958.Martínez, Alejandro, “Informe de Trabajos Arqueológicos de la 2a. Temporada del Proyecto Pujal Coy”, en: Archivo de la
Coordinación de Arqueología, México, INAH, mecanuscrito, 1977.Merino Carrión, Beatriz Leonor, Definición del Formativo en la cuenca baja del río Pánuco, en Archivo Técnico de la Coordinación Nacional de Arqueología, México, INAH, 1984.
____, Proyecto Arqueológico Cañón del Infiernillo-Cañón del Diablo, en Archivo Técnico de la Coordinación de Arqueología, México, INAH, 1992.Merino Carrión, Beatriz Leonor y Ángel García Cook, “Proyecto Arqueológico Huaxteca”, en: Arqueología, núm. 1, primera época, México, INAH, 1987.____, “El Formativo en la cuenca baja del Pánuco”, en: M. Carmona (coord.), El Preclásico o Formativo. Avances y Perspectivas, México, MNA/INAH, 1989.____, “Enterramientos de Perros durante el Formativo Temprano en el Noreste de México”, en: L. Manrique y N. Castillo
(coords.), Homenaje al Dr. Ignacio Bernal, México, INAH (Científica), 1997, pp. 408-430.
____, “Primeras evidencias de grupos sedentarios en el bajo Pánuco”, ponencia presentada en XXV Mesa Redonda de la SMA, San Luis Potosí, México, en prensa.Romero, Javier y Juan Valenzuela, 1945. “Expedición a la sierra Azul, Ocampo, Tamaulipas”, en Anales del Instituto Nacional de Antropología e Historia, núm.1, México, INAH, 1945.Valenzuela, Juan y Javier Romero, Informe de la expedición a la Sierra Azul, Ocampo Tamaulipas, en Archivo Técnico de la Coordinación Nacional de Arqueología, México, INAH, 1937.Wilkerson, Jeffrey K., “The Northen Olmec and Pre-Olmec Frontier on the Gulf Coast”, en: The Olmec and Their Neighbors, USA, Dumbarton Oaks Resear, 1981
Los peces del sitio arqueológico Altamirano, Veracruz
No full textÁlvarez del Villar, J., Peces mexicanos (claves), Secretaría de Industria y Comercio, Instituto de Investigaciones Biológico Pesqueras, Serie Investigación Pesquera, Estudio 1, 1970, pp. 1-166.Borhegyi, S. F., “Shark teeth, stingray spines, and shark fishing in ancient Mexico and Central America”, en: Southwestern
Journal of Anthropology, 17(3), 1961, pp. 273-296.Boschung, H. T., Jr., J. D. Williams, D. W. Gotshall y D. K. Caldwell, The Aububon Society field guide to North American fishes, whales & dolphins, Alfred A. Knop, New York, 1983.Castro-Aguirre, J. L., Catálogo sistemático de los peces marinos que penetran a las aguas continentales de México con aspectos zoogeográficos y ecológicos, México, Serie Científica del Departamento de Pesca, 1978, pp. 1-298.Castro-Aguirre, J. L., H. S. Espinosa Pérez y J. J. Schmitter-Soto, Ictiofauna estuarino-lagunar y vicaria de México, México, Limusa e Instituto Politécnico Nacional, 1999, (Textos Politécnicos).Chávez, H., “Contribución al conocimiento de la biología de los robalos, chucumite y constantino (Centropomus spp.) del estado de Veracruz”, en Ciencia, 12 núm. (5), 1963, pp. 141-161.Ekholm, G. F., “Excavations at Tampico and Panuco in the Huasteca, Mexico”, en: Anthropological Papers of the American Museum of Natural History, vol. 38 núm. (5), 1944, pp. 319-512.Espinosa Pérez, H., M. T. Gaspar Dillanes y P. Fuentes Mata, Los peces dulceacuícolas mexicanos, México, Instituto de Biología-UNAM, 1993.Fischer, J. L. y R. Rey, “De l’origen et de l’usage des termes taxinomie-taxonomie”, en: Documentes pour l’histoire du vocabulaire scientifique, Institut National de la Langue Française, 5, CNRS, 1983, París, pp. 97-113.García Cook, A., “Las cerámicas más tempranas en México”, en: Revista de Arqueología Americana, núm. 14, 1998, pp. 7-64.
• García Cook, A. y B. L. Merino Carrión, 1989. “Investigación arqueológica en la Cuenca Baja del Pánuco”, en Homenaje a José Luis Lorenzo (L. Mirambell, coord.), México, INAH, 1989, (Científica, 188), pp. 181-209.International Commission on Zoological Nomenclature 1999. International Code on Zoological Nomenclature, International Trust for Zoological Nomenclature, 4ª ed., London.Jester, D. B., 1973. Life history, ecology, and management of the smallmouth buffalo, Ictiobus bubalus (Rafinesque), with reference to Elephant Butte Lake. Agricultural Experiment Station, New Mexico State University, Research Report, 261, pp. 1-111.Kullander, S. O., A revision of the South American cichlid genus Cichlasoma (Teleostei: Cichlidae), The Swedish Museum of Natural History, Stockholm, 1983.Meek, S. E., “The fresh-water fishes of Mexico north of the Isthmus of Tehuantepec”, en: Field Columbian Museum Publication 93, Zoological Series, 5, 1904, pp. 1-252.Merino Carrión, B. L. y A. García Cook, “Proyecto Arqueológico Huaxteca”, en: Arqueología, México,
INAH, núm. 1, 1987a, pp. 31-72.____, “Enterramientos del Formativo en el noreste de México”, en: Homenaje al profesor César A. Sáenz (A. García Cook, A. G. Mastache, L. Merino y S. Rivero Torres, coords.), México, INAH, 1997b, (Científica, 351), pp. 319-366.Merino Carrión, B. L., A. García Cook y L. A. Castañeda Zerecero, “Definición del Formativo en la Cuenca Baja del Río Pánuco (segundo informe parcial): temporadas 1985, 1986 y 1988”, Archivo de la Subdirección de Estudios Arqueológicos del INAH, México, 1989, (mecanoescrito).Myers, G. S., Freshwater fishes and west Indian zoogeography, Ann. Rept. Smithson. Inst. for 1937 (1940), pp. 339-364.Nelson, J. S., Fishes of the world, New York, John Wiley & Sons, 1994.Page, L. M. y B. M. Burr, Freshwater fishes, Peterson Field Guide Series, Roger Tory Peterson (eds.), Houghton Miffin Company, Boston, 1991.Pasteur, G., “The proper spelling of taxonomy”, en Systematic Zoology, 25, 1976, pp. 192-193.Polaco, O. J. y A. F. Guzmán, Arqueoictiofauna Mexicana, México, INAH, 1997, (Científica, 352).Reséndez Medina, A. 1970. “Estudio de los peces de la Laguna de Tamiahua, Veracruz, México”, en: Anales del Instituto de Biología, México, UNAM, vol. 41 núm. (1), 1970, pp. 79-146
A comparison of Mulesed and un-Mulesed sheep in the Western District
No full textThe Mules operation practically eliminated fly-strike and the need for jetting in a Merino flock, while in "Comeback" sheep flystrike was considerably reduced and jetting requirements were halved. For both types of sheep crutching time and wool soiling were reduced. Although the operation removes a relatively large area of wool-bearing skin, no reduction in wool weight was recorded. It had little or no effect on liveweight, and at lambing there was no increase in the number of difficult births. HMB..Source type: Electronic(1) http://upei-resolver.asin-risa.ca?sid=SP:CABI&id=pmid:&id=&issn=&isbn=&volume=&issue=&spage=10&pages=10-11&date=1971&title=J%20Agric%20Vict%20Dep%20Agric&atitle=A%20comparison%20of%20Mulesed%20and%20un-Mulesed%20sheep%20in%20the%20Western%20District.&aulast=Richardson&pid=%3Cauthor%3ERichardson%2c%20G%3C%2Fauthor%3E%3CAN%3E19712204724%3C%2FAN%3E%3CDT%3EJournal%20article%3C%2FDT%3
Environmental and Parental Influences on Offspring Health and Growth in Great Tits (Parus major)
No full textPMCID: PMC3728352This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Enhancement of the fluorescence and stability of o-phthalaldehyde-derived isoindoles of amino acids using hydroxypropyl-beta-cyclodextrin
No full textAddition of hydroxypropyl-beta-cyclodextrin to o-phthalaldehyde (OPA)-amino acid-thiol reaction mixtures is shown to cause significant enhancement of the fluorescence of the isoindole product for a wide range of amino acids, with the largest effects observed in the cases of glycine and lysine. The largest enhancement observed was a factor of 2.67 in the case of the derivative of glycine. This fluorescence enhancement is the result of the formation of a 1:1 host:guest inclusion complex between the isoindole and the cyclodextrin. Relatively small association constants of 44 and 130 M-1 were obtained for the inclusion of the derivatives of glycine and lysine, respectively. Inclusion of the isoindole derivative into hydroxypropyl-beta-cyclodextrin was also found to result in a significant stabilization of the isoindole derivatives, contrary to what has been previously reported for inclusion into beta-cyclodextrin. For example, the lifetime of the lysine derivative was found to increase from 42 to 222 min, a factor of 5.3. These results have potential applications in fluorescence-based HPLC and high-performance capillary electrophoresis amino acid analysis methods using OPA derivation. Addition of hydroxypropyl-beta-cyclodextrin to the reaction mixture results in an increase in both the fluorescence and the stability of the isoindole product, providing potentially significant improvements to the method. (C) 2003 Elsevier Science (USA). All rights reserved.PT: J; CR: BAEYENS WRG, 1990, ANAL CHIM ACTA, V234, P187 BENESI HA, 1949, J AM CHEM SOC, V71, P2703 DELAPENA AM, 1993, J INCLUS PHENOM MOL, V15, P131 FRANKEWICH RP, 1991, ANAL CHEM, V63, P2924 GARCIAALVAREZCO.MC, 1989, ANAL BIOCHEM, V178, P1 KHOKHAR MY, 1993, ANAL P, V30, P93 KHOKHAR MY, 1995, J CHEM SOC PAKISTAN, V17, P226 LENTON KJ, 1999, ANAL BIOCHEM, V274, P125 MERINO IM, 1990, ANAL CHIM ACTA, V234, P127 NAKAMURA H, 1981, ANAL CHEM, V53, P2190 OGURI S, 1997, J CHROMATOGR A, V787, P253 PENN SG, 1994, J CHROMATOGR A, V680, P233 REEUWIJK HJEM, 1993, J CHROMATOGR-BIOMED, V614, P95 ROBERTS EL, 1996, J PHYS CHEM-US, V100, P19681 SANRAME CN, 1996, J PHYS CHEM-US, V100, P8151 SZEJTLI J, 1998, CHEM REV, V98, P1743 TAO L, 1998, ANAL CHEM, V70, P4015 TEE OS, 1996, CAN J CHEM, V74, P736 TSIKAS D, 1999, ANAL BIOCHEM, V273, P32 VAZQUEZ ML, 1991, ANAL CHIM ACTA, V255, P343 WAGNER BD, 1998, J PHOTOCH PHOTOBIO A, V114, P151 WAGNER BD, 2000, J INCL PHENOM MACRO, V38, P467; NR: 22; TC: 5; J9: ANAL BIOCHEM; PG: 7; GA: 685ZFSource type: Electronic(1
Effect of continuous water movement on growth and body composition of Juvenile rabbitfish, Siganus rivulatus
No full text[No abstract available]Alavanese A, 1963, NEWER METHODS NUTR B, P1; Anderson R.O., 1983, P283; Bariche M, 2005, J APPL ICHTHYOL, V21, P141, DOI 10.1111-j.1439-0426.2004.00619.x; BELAL IEH, 2008, WORLD AQUACULTURE, V39, P15; Bjornevik M, 2003, AQUAC RES, V34, P55, DOI 10.1046-j.1365-2109.2003.00794.x; CHRISTIANSEN JS, 1990, CAN J ZOOL, V68, P2185, DOI 10.1139-z90-303; Davidson J, 2004, AQUACULT ENG, V32, P245, DOI 10.1016-j.aquaeng.2004.03.009; DAVISON W, 1977, J EXP BIOL, V70, P1; Davison W, 1997, COMP BIOCHEM PHYS A, V117, P67, DOI 10.1016-S0300-9629(96)00284-8; Forster IP, 1996, FISHERIES SCI, V62, P404; Grunbaum T, 2008, AQUAC RES, V39, P106, DOI 10.1111-j.1365-2109.2007.01861.x; Hopkins Kevin D., 1992, Journal of the World Aquaculture Society, V23, P173, DOI 10.1111-j.1749-7345.1992.tb00766.x; HOULIHAN DF, 1987, CAN J FISH AQUAT SCI, V44, P1614, DOI 10.1139-f87-195; Jobling M., 1993, AQUACULT INT, V1, P95, DOI 10.1007-BF00692614; Kawamata S, 2006, NIPPON SUISAN GAKK, V72, P717, DOI 10.2331-suisan.72.717; LEON KA, 1986, PROG FISH CULT, V48, P43, DOI 10.1577-1548-8640(1986)4843:EOEOFC2.0.CO;2; Merino GE, 2007, AQUACULTURE, V271, P206, DOI 10.1016-j.aquaculture.2007.06.038; Ogata HY, 2000, J WORLD AQUACULT SOC, V31, P225, DOI 10.1111-j.1749-7345.2000.tb00357.x; Parsons T. R., 1985, MANUAL CHEM BIOL MET; Saoud IP, 2008, AQUAC RES, V39, P491, DOI 10.1111-j.1365-2109.2007.01903.x; Saoud IP, 2008, AQUACULT INT, V16, P109, DOI 10.1007-s10499-007-9129-7; SAOUD IP, 2007, J EXPT MARINE BIOL E, V384, P183; SOLORZAN.L, 1969, LIMNOL OCEANOGR, V14, P799; Timmons MB, 1998, AQUACULT ENG, V18, P51, DOI 10.1016-S0144-8609(98)00023-5; TOTLAND GK, 1987, AQUACULTURE, V66, P299, DOI 10.1016-0044-8486(87)90115-3; WALKER MG, 1971, J CONSEIL, V33, P421; WOODLAND DJ, 1983, B MAR SCI, V33, P713; Yogata H, 2000, FISHERIES SCI, V66, P1100, DOI 10.1046-j.1444-2906.2000.00175.x12
An alternate form of Merino-Mička-Mütze\u27s approach to a combinatorial generation problem of Knuth
No full textA modification of Merino-Mička-Mütze\u27s solution to a combinatorial generation problem of Knuth is proposed in this survey. The resulting alternate form to such solution is compatible with a reinterpretation by the author of a proof of existence of Hamilton cycles in the middle-levels graphs. Such reinterpretation is given in terms of a dihedral quotient graph associated to each middle-levels graph. The vertices of such quotient graph represent Dyck words and their associated ordered trees. Those Dyck words are linearly ordered via a rooted tree that covers all their tight, or irreducible, forms, offering an universal reference point of view to express and integrate the periodic paths, or blocks, whose concatenation leads to Hamilton cycles resulting from the said solution.23 pages, 8 figure
Genomic regions associated with wool, growth and reproduction traits in Uruguayan Merino Sheep.
No full textThe aim of this study was to identify genomic regions and genes associated with the fiber diameter (FD), clean fleece weight (CFW), live weight (LW), body condition score (BCS), pregnancy rate (PR) and lambing potential (LP) of Uruguayan Merino sheep. Phenotypic records of approximately 2000 mixed-age ewes were obtained from a Merino nucleus flock. Genome-wide association studies were performed utilizing single-step Bayesian analysis. For wool traits, a total of 35 genomic windows surpassed the significance threshold (PVE > 0.25%). The proportion of the total additive genetic variance explained by those windows was 4.85 and 9.06% for FD and CFW, respectively. There were 42 windows significantly associated with LWM, which collectively explained 43.2% of the additive genetic variance. For BCS, 22 relevant windows accounted for more than 40% of the additive genetic variance, whereas for the reproduction traits, 53 genomic windows (24 and 29 for PR and LP, respectively) reached the suggestive threshold of 0.25% of the PVE. Within the top 10 windows for each trait, we identified several genes showing potential associations with the wool (e.g., IGF-1, TGFB2R, PRKCA), live weight (e.g., CAST, LAP3, MED28, HERC6), body condition score (e.g., CDH10, TMC2, SIRPA, CPXM1) or reproduction traits (e.g., ADCY1, LEPR, GHR, LPAR2) of the mixed-age ewes. Copyright: © 2023 by the author
Deliberate Practice of Handwriting: Supervision Under the Ghost of an Expert
No full textIt takes considerable time, experience, and direct assistance from teachers to become a skilled writer. Handwriting fluency is one of the predictors of writing quality among students. However, students do not receive enough teacher supervision as a beginner to develop handwriting fluency in a proper manner. The ``Calligraphy tutor'' presented in this paper, is an application developed to assist teachers to help students learn proper handwriting fluency skills. Calligraphy tutor is designed to support deliberate practice of handwriting, in which teachers play the central role. To reduce workload of teachers, Calligraphy tutor automates repetitive actions such as providing mundane real-time feedback, while also collecting performance data from students, allowing students to practice without the presence of a teacher. The collected performance data is used by teachers to further personalise students' training.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.New Media CentreWeb Information System
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