637 research outputs found

    Headache And Bruxing Behavior Types In Craniomandibular Disorders (cmds) Patients

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    Objective. Assess headache and bruxism in Craniomandibular Disorders (CMDs) and non CMDs patients. Method. Clinical examination, questionnaires, headache criteria, severity of bruxism. Results. The prevalence of headache was 68.3% in the CMDs group and 51.4% in the non-CMDs group (p<0.04).Tension type (TTH)=52.8% and combination headaches=25.2% predominated in CMDs. Migraine was more prevalent in Non-CMDs (21.1%) than in CMDs subjects (11.4%). Severe bruxism predominated in the headache/CMDs group=35% as compared to the non-headache/ CMDs group=21%, (p=0.08). We found a frequency of 29.3% extreme bruxism in the headache group and 7% in the non-headache group (p<0.0005). The frequencies of mild/moderate bruxism were about 28% in the TTH, 44.8% in the "other headaches" and 72% in the non-headache/CMDs groups. The frequencies of severe/extreme bruxism were 72.3% in the TTH, 55.2% in the "Other headaches", and 28% in the non- headache/CMDs groups(p=0.0001). Conclusion. Headache, TTH and combination headache were common in the CMDs group. Severe and extreme bruxism were more prevalent in the headache /CMDs group than in the "other headaches" and in the non/headache CMDs groups. Severe and extreme bruxism were more frequent in the TTH/CMDs group.193449457Clark, G.T., Sakai, S., Merrill, R., Flack, V.F., McArthur, D., McCreary, C., Waking and sleeping temporalis EMG levels in tension type headache (1997) J Orofac Pain, 11, pp. 298-305Clinical and pathophysiological observations in migraine and tension type headache explained by integration of vascular, supraspinal and myofascial inputs (1991) Pain, 46, pp. 125-132. , http://dx.doi.org/10.1016/0304-3959(91)90066-7Molina, O.F., dos Santos, J., Nelson, Grossman, E., Prevalence of modalities of headaches and bruxism among patients with craniomandibular disorders (1997) J Craniomand Pract, 15, pp. 314-329Pingitore, G., Chroback, V., Petrie, J., The social and psychological factors of bruxism (1991) J Prost Dent, 65, pp. 443-446. , http://dx.doi.org/10.1016/0022-3913(91)90240-WBoutros, N.N., Montgomery, M.T., Nishioka, G., Hatch, J.P., The effects of severe bruxism on sleep architecture: A preliminary report (1993) Clin Electroenceph, 24, pp. 59-62Molina, O.F., dos Santos, J., Hostility in TMD/Bruxism patients and controls: A clinical comparison study and preliminary results (2002) J Craniomand Pract, 20, pp. 282-288Kreisberg, M.K., Headache as a symptom of craniomandibular disorders I: Pathophysiology (1986) J Craniomand Pract, 4, pp. 134-149Kemper, J.T., Okeson, J.P., Craniomandibular disorders and headaches (1983) J Prost Dent, 49, pp. 702-705. , http://dx.doi.org/10.1016/0022-3913(83)90400-6Nishigawa, K., Bando, E., Nakano, M., A quantitative study of bite force during sleep bruxism (2001) J Oral Rehab, 28, pp. 485-491. , http://dx.doi.org/10.1046/j.1365-2842.2001.00692.xLous, I., Olesen, J., Evaluation of pericranial tenderness and oral function in patients with common migraine, muscle contraction headache and combination headache (1982) Pain, 12, pp. 385-393. , http://dx.doi.org/10.1016/0304-3959(82)90183-XChristensen, L.V., Jaw muscle fatigue induced by experimental tooth clenching in man (1981) J Oral Rehab, 8, pp. 27-36. , http://dx.doi.org/10.1111/j.1365-2842.1981.tb00515.x, http://dx.doi.org/10.1111/j.1365-2842.1981.tb00472.xRasmussen, O.C., Bonde-Petersen, F., Christensen, L.V., Blood flow in human mandibular elevators at rest and during controlled biting (1977) Archs Oral Biol, 22, pp. 539-543. , http://dx.doi.org/10.1016/0003-9969(77)90052-8Glaros, A.B., Bruxism Rao, S.M., A critical review (1977) Psychol Bull, 84, pp. 767-781. , http://dx.doi.org/10.1037/0033-2909.84.4.767Wänman, A., Agerberg, G.E., Headache and dysfunction of the masticatory system in adolescents (1986) Cephalalgia, 6, pp. 247-255. , http://dx.doi.org/10.1046/j.1468-2982.1986.0604247.xMolina, O.F., dos Santos, J., Nelson, S.J., Grossman, E., Prevalence of modalities of headaches and bruxism among patients with craniomandibular disorders (1997) J Craniomand Pract, 15, pp. 314-329(2009) National Headache Foundation: Coexisting Migraine and Tension-type Headache, pp. 1-2Molina, O.F., Tavares, G.P., Aquilino, R.N., Rank, R., Coelho, S.Z., César, E.W., Depression, pain, and site: A clinical comparison study in mild, moderate, severe and extreme bruxers (2007) Rev Neurocienc, 15, pp. 09-16Molina, O.F., dos Santos, J., Nelson, S.J., Nowlin, T., A clinical study of specific sign and symptoms of CMD in bruxers classified by the degree of severity (1999) J Craniomand Pract, 17, pp. 268-279Spierrings, E.L., Ranke, A., Schroever, M., Honkoop, P.C., Chronic daily headache: A time perspective (2000) Headache, 40, pp. 306-310. , http://dx.doi.org/10.1046/j.1526-4610.2000.00045.xOlesen, J., Some clinical features of the acute migraine attack: An analysis of 750 patients (1978) Headache, 18, pp. 268-271. , http://dx.doi.org/10.1111/j.1526-4610.1978.hed1805268.xSchökker, R.P., Hansson, T.L., Ansink, B.J., Craniomandibular disorders in headache patients (1989) J Craniomand Dis Facial Oral Pain, 3, pp. 72-74Benseñor, I.M., Tófoli, L.F., Andrade, L., Headache complaints associated with psychiatric co-morbidity in a population based sample (2003) Braz J Med Biol Res, 26, pp. 1425-1432Kampe, T., Tagdae, T., Bader, G., Edman, G., Karlsson, S., Reported symptoms and clinical findings in a group of subjects with longstanding bruxing behavior (1997) J Oral Rehab, 24, pp. 581-587. , http://dx.doi.org/10.1111/j.1365-2842.1997.tb00377.x, http://dx.doi.org/10.1046/j.1365-2842.1997.00540.xGramling, S.E., Nebblett, J., Graysson, R., Temporomandibular disorders: Efficacy of an oral habit reversal treatment program (1996) J Behav Exp Psychiat, 27, pp. 245-255. , http://dx.doi.org/10.1016/S0005-7916(96)00027-4Clark, G.T., Beemsterboer, P.L., Rugh, J.D., Nocturnal masseter muscle activity and the symptoms of masticatory dysfunction (1981) J Oral Rehab, 8, pp. 279-286. , http://dx.doi.org/10.1111/j.1365-2842.1981.tb00502.xWare, J.C., Rugh, J.D., Destructive bruxism: Sleep stage relationships (1988) Sleep, 11, pp. 172-181Steele, J.G., Lamey, P.G., Sharkey, S.W., Occlusal abnormalities, pericranial and joint tenderness and tooth wear in a group of migraine patients (1991) J Oral Rehab, 18, pp. 453-458. , http://dx.doi.org/10.1111/j.1365-2842.1991.tb01690.xPhilips, C., Hunter, M., The treatment of tension headache. EMG abnormality and relaxation (1981) Behav Res Ther, 19, pp. 499-507. , http://dx.doi.org/10.1016/0005-7967(81)90076-0Jensen, K., Bülow, P., Hansen, H., Experimental tooth clenching in common migraine (1985) Cephalalgia, 5, pp. 245-251. , http://dx.doi.org/10.1046/j.1468-2982.1985.0504245.xYücel, B., Kora, K., Ozyalçin, J., Alcaçar, N., Depression, automatic thoughts, alexythimia and assertiveness in patients with tension headaches (2002) Headache, 42, pp. 194-199. , http://dx.doi.org/10.1046/j.1526-4610.2002.02051.xMongini, F., Ibertis, F., Barbalonga, E., Raviola, F., MMPI-2 profiles in chronic daily Headache and the relationship to anxiety levels and accompanying symptoms (2000) Headache, 40, pp. 466-472. , http://dx.doi.org/10.1046/j.1526-4610.2000.00070.

    Diversidad diferencial de esporas de Glomeromycota en la rizosfera de bromeliáceas nativas del Parque Nacional Sierra de las Quijadas (San Luis, Argentina)

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    Los hongos micorrícicos arbusculares (HMA) están ampliamente distribuidos en distintos ambientes y forman con la mayoría de las plantas asociaciones simbióticas denominadas micorrizas arbusculares. Bromeliaceae es una familia americana que habita desde los trópicos hasta zonas templadas y áridas. En el Parque Nacional Sierra de las Quijadas (San Luis, Argentina) las especies terrestres de Bromeliaceae están colonizadas por HMA, presentando distintos grados de asociación. El objetivo de este trabajo fue estudiar la diversidad (riqueza y densidad) de esporas de HMA en el suelo rizosférico de tres especies nativas de Bromeliaceae del Parque Nacional Sierra de las Quijadas. Riqueza y densidad de esporas difirieron significativamente entre las especies de Bromeliaceae estudiadas, siendo siempre marcadamente menores los valores obtenidos en Bromelia urbaniana, mientras que Deuterocohnia longipetala y Dyckia floribunda presentaron los mayores valores y sólo difirieron entre sí en la riqueza de HMA. Esta diversidad diferencial de esporas de HMA observada, podría tener relación con la especie hospedante y a su vez, con los distintos grados de colonización radical de cada especie. La escasa riqueza y densidad de esporas de HMA en B. urbaniana podría deberse tanto a un efecto alelopático de esta planta como a su particular morfología radical.Fil: Rivero Mega, Maria Soledad. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Area Ecológica; ArgentinaFil: Crespo, Esteban María. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Area Ecológica; ArgentinaFil: Molina, M.G.. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Area Ecológica; ArgentinaFil: Lugo, Mónica Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina. Universidad Nacional de San Luis; Argentin

    Stilling project: advances in the compilation and homogenization of historical wind speed data for the assessment of the stilling phenomenon

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    Póster presentado en: EGU General Assembly 2018 celebrada del 8 al 13 de abril en Viena, Austria.During the last decade scientists have reported a terrestrial slowdown in wind speed across the world. This weakening in wind speed has been recently termed the “stilling” phenomenon, with a worldwide average trend of -0.140 m s-1 decade-1 reported since the 1960s. The precise causes of this “stilling” remain largely uncertain and have been hypothetically attributed to several factors, mainly related to an increase in surface roughness (i.e. forest growth, land use changes, and urbanization) with little attention paid to changes in atmospheric circulation. Unlike this “stilling” over land, satellite measurements have revealed that wind speed has increased over ocean surfaces, which introduces uncertainty to the “stilling” debate. Therefore, scientists are currently debating if global warming has and will impact on changes in wind speed.The uncertainty on the causes driving the “stilling” over land is mainly due to short availability (i.e. since the 1960s) and low quality of observed wind speed records as stated by the Fifth Assessment Report (AR5) of the Intergovernmental Panel on Climate Change (IPCC) and the recent report “State of the Climate in 2015” . The main objective of the ongoing EU funded project STILLING (MSCAIF-2015 GA-703733) is to fill the key gap of short availability and low quality of wind speed datasets, and improve the limited knowledge on the causes driving the “stilling” in a climate change scenario. This has not yet been addressed by the scientific community due to (i) scientists have traditionally paid little attention on variability of wind speed; (ii) digitization of climate series at National Weather Services (NWS) systematically started in the 1960s, however, some longer but isolated past wind speed records are available for scientists to be rescued and analyzed; and (iii) efforts on advances in homogenization algorithms to improve quality of wind speed series have been scarce. The STILLING project covers a novel research niche on the “stilling” debate, and this contribution will present the advances in the compilation and homogenization of historical wind speed data (prior to the 1960s) to better assess trends/cycles and causes on multidecadal time periods and reliable datasets than previous studies.This research has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 703733 (STILLING project)

    Data Vaults: a Database Welcome to Scientific File Repositories

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    Efficient management and exploration of high-volume scientific file repositories have become pivotal for advancement in science. We propose to demonstrate the Data Vault, an extension of the database system architecture that transparently opens scientific file repositories for efficient in-database processing and exploration. The Data Vault facilitates science data analysis using high-level declarative languages, such as the traditional SQL and the novel array-oriented SciQL. Data of interest are loaded from the attached repository in a just-in-time manner without need for up-front data ingestion. The demo is built around concrete implementations of the Data Vault for two scientific use cases: seismic time series and Earth observation images. The seismic Data Vault uses the queries submitted by the audience to illustrate the internals of Data Vault functioning by revealing the mechanisms of dynamic query plan generation and on-demand external data ingestion. The image Data Vault shows an application view from the perspective of data mining researchers

    Instabilities and Bifurcations of Nonlinear Impurity Modes

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    We study the structure and stability of nonlinear impurity modes in the discrete nonlinear Schr{\"o}dinger equation with a single on-site nonlinear impurity emphasizing the effects of interplay between discreteness, nonlinearity and disorder. We show how the interaction of a nonlinear localized mode (a discrete soliton or discrete breather) with a repulsive impurity generates a family of stationary states near the impurity site, as well as examine both theoretical and numerical criteria for the transition between different localized states via a cascade of bifurcations.Comment: 8 pages, 8 figures, Phys. Rev. E in pres

    Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high transverse momentum in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm NN}}=2.76 TeV

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    The elliptic, v2v_2, triangular, v3v_3, and quadrangular, v4v_4, azimuthal anisotropic flow coefficients are measured for unidentified charged particles, pions and (anti-)protons in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm NN}} = 2.76 TeV with the ALICE detector at the Large Hadron Collider. Results obtained with the event plane and four-particle cumulant methods are reported for the pseudo-rapidity range η<0.8|\eta|<0.8 at different collision centralities and as a function of transverse momentum, pTp_{\rm T}, out to pT=20p_{\rm T}=20 GeV/cc. The observed non-zero elliptic and triangular flow depends only weakly on transverse momentum for pT>8p_{\rm T}>8 GeV/cc. The small pTp_{\rm T} dependence of the difference between elliptic flow results obtained from the event plane and four-particle cumulant methods suggests a common origin of flow fluctuations up to pT=8p_{\rm T}=8 GeV/cc. The magnitude of the (anti-)proton elliptic and triangular flow is larger than that of pions out to at least pT=8p_{\rm T}=8 GeV/cc indicating that the particle type dependence persists out to high pTp_{\rm T}.Comment: 16 pages, 5 captioned figures, authors from page 11, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/186

    Centrality dependence of charged particle production at large transverse momentum in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm{NN}}} = 2.76 TeV

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    The inclusive transverse momentum (pTp_{\rm T}) distributions of primary charged particles are measured in the pseudo-rapidity range η<0.8|\eta|<0.8 as a function of event centrality in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm{NN}}}=2.76 TeV with ALICE at the LHC. The data are presented in the pTp_{\rm T} range 0.15<pT<500.15<p_{\rm T}<50 GeV/cc for nine centrality intervals from 70-80% to 0-5%. The Pb-Pb spectra are presented in terms of the nuclear modification factor RAAR_{\rm{AA}} using a pp reference spectrum measured at the same collision energy. We observe that the suppression of high-pTp_{\rm T} particles strongly depends on event centrality. In central collisions (0-5%) the yield is most suppressed with RAA0.13R_{\rm{AA}}\approx0.13 at pT=6p_{\rm T}=6-7 GeV/cc. Above pT=7p_{\rm T}=7 GeV/cc, there is a significant rise in the nuclear modification factor, which reaches RAA0.4R_{\rm{AA}} \approx0.4 for pT>30p_{\rm T}>30 GeV/cc. In peripheral collisions (70-80%), the suppression is weaker with RAA0.7R_{\rm{AA}} \approx 0.7 almost independently of pTp_{\rm T}. The measured nuclear modification factors are compared to other measurements and model calculations.Comment: 17 pages, 4 captioned figures, 2 tables, authors from page 12, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/284

    Two-pion Bose-Einstein correlations in central Pb-Pb collisions at sNN\sqrt{s_{\rm NN}} = 2.76 TeV

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    The first measurement of two-pion Bose-Einstein correlations in central Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm NN}} = 2.76 TeV at the Large Hadron Collider is presented. We observe a growing trend with energy now not only for the longitudinal and the outward but also for the sideward pion source radius. The pion homogeneity volume and the decoupling time are significantly larger than those measured at RHIC.Comment: 17 pages, 5 captioned figures, 1 table, authors from page 12, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/388

    Suppression of charged particle production at large transverse momentum in central Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm NN}} = 2.76 TeV

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    Inclusive transverse momentum spectra of primary charged particles in Pb-Pb collisions at sNN\sqrt{s_{_{\rm NN}}} = 2.76 TeV have been measured by the ALICE Collaboration at the LHC. The data are presented for central and peripheral collisions, corresponding to 0-5% and 70-80% of the hadronic Pb-Pb cross section. The measured charged particle spectra in η<0.8|\eta|<0.8 and 0.3<pT<200.3 < p_T < 20 GeV/cc are compared to the expectation in pp collisions at the same sNN\sqrt{s_{\rm NN}}, scaled by the number of underlying nucleon-nucleon collisions. The comparison is expressed in terms of the nuclear modification factor RAAR_{\rm AA}. The result indicates only weak medium effects (RAAR_{\rm AA} \approx 0.7) in peripheral collisions. In central collisions, RAAR_{\rm AA} reaches a minimum of about 0.14 at pT=6p_{\rm T}=6-7GeV/cc and increases significantly at larger pTp_{\rm T}. The measured suppression of high-pTp_{\rm T} particles is stronger than that observed at lower collision energies, indicating that a very dense medium is formed in central Pb-Pb collisions at the LHC.Comment: 15 pages, 5 captioned figures, 3 tables, authors from page 10, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/98
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