23 research outputs found
Poor taxonomic sampling undermines nomenclatural stability: A reply to Roxo et al. (2019)
No full textReis, Roberto E., Britski, Heraldo A., Britto, Marcelo R., Buckup, Paulo A., Calegari, Bárbara B., Camelier, Priscila, Delapieve, Maria Laura S., Langeani, Francisco, Lehmann, Pablo, Lucinda, Paulo H. F., Marinho, Manoela, Martins, Fernanda O., Menezes, Naércio A., Moreira, Cristiano R., De Pinna, Mário C. C., Pavanelli, Carla S., Rapp Py- Daniel, Lucia H., Sousa, Leandro M. (2019): Poor taxonomic sampling undermines nomenclatural stability: A reply to Roxo et al. (2019). Zootaxa 4701 (5): 497-500, DOI: https://doi.org/10.11646/zootaxa.4701.5.1
Características clínicas de los pacientes con carcinoma basocelular. Una serie de 305 casos en Bucaramanga
No full textResumenAntecedentes: El carcinoma basocelular (CBC) es la neoplasia maligna más frecuente de la piel, de crecimiento lento y baja mortalidad pero con ocasional gran poder destructivo que causa gran incapacidad laboral y social. La exposición a la luz solar es el principal factor de riesgo conocido.[Rojas RF, Díaz LA. Características clínicas de los pacientes con carcinoma basocelular. Una serie de 305 casos en Bucaramanga. MedUNAB 2002; 5(14):69-74].Palabras clave: Neoplasias de la piel, carcinoma basocelular, envejecimiento
Taxonomic impediment or impediment to taxonomy? A commentary on systematics and the cybertaxonomic-automation paradigm
No full textUniv São Paulo, Dept Zool, Inst Biociencias, BR-05508900 São Paulo, BrazilUniv São Paulo, Dept Biol, BR-14040901 Ribeirao Preto, SP, BrazilUniv São Paulo, Museu Zool, BR-04263000 São Paulo, BrazilMuseo La Plata, RA-1900 La Plata, ArgentinaTexas A&M Univ, Dept Wildlife & Fisheries Sci, College Stn, TX 77843 USAAmer Museum Nat Hist, Dept Ichthyol, New York, NY 10024 USAAcad Nat Sci Philadelphia, Dept Ichthyol, Philadelphia, PA 19103 USAArizona State Univ, Sch Life Sci, Tempe, AZ 85287 USANat Hist Museum, Dept Zool, London SW7 5BD, EnglandNatl Museum Nat Hist, Div Fishes, Washington, DC 20013 USAFlorida Museum Nat Hist, Fish Div, Gainesville, FL 32605 USAAmer Museum Nat Hist, Div Invertebrate Zool, New York, NY 10024 USAUniv Estadual Paulista, Dept Zool, Inst Biociencias, BR-13506900 Rio Claro, SP, BrazilField Museum Nat Hist, Div Collect & Res, Chicago, IL 60605 USAUniv Estadual Paulista, Dept Zool, Inst Biociencias, BR-13506900 Rio Claro, SP, Brazi
SHARK-NIR, ready to "swim" in the LBT Northern Hemisphere "ocean"
No full textSHARK-NIR is an instrument which provides direct imaging, coronagraphic imaging, dual band imaging and low resolution spectroscopy in Y, J and H bands, taking advantage of the outstanding performance of the Large Binocular Telescope AO systems. Binocular observations will be provided used in combination with SHARK-VIS (operating in V band) and LMIRCam of LBTI (operating from K to M bands), in a way to exploit coronagraphic simultaneous observations in three different wavelengths.A wide variety of coronagraphic techniques have been implemented in SHARK-NIR, ranging from conventional ones such as the Gaussian Lyot, to others quite robust to misalignments such as the Shaped Pupil, to eventually techniques more demanding in term of stability during the observation, as the Four Quadrant; the latter is giving in theory and simulations outstanding contrast, and it is supported in term of stability by the SHARK-NIR internal fast tip-tilt loop and local NCPA correction, which should ensure the necessary stability allowing this technique to operate at its best. The main science case is of course exoplanets search and characterization and young stellar systems, jets and disks characterization, although the LBT AO extreme performance, allowing to reach excellent correction even at very faint magnitudes, may open to science previously difficult to be achieved, as for example AGN and QSO morphological studies.The institutes participating to the SHARK-NIR consortium which designed and built the instrument are Istituto Nazionale di Astro Fisica (INAF, Italy), the Max Planck Institute for Astronomy (MPIA, Heidelberg, Germany) and University of Arizona/Steward Observatory (UoA/SO, Tucson, Az, USA).We report here about the SHARK-NIR status, that should achieve first light at LBT before the end of 2022
Generalidades fisiopatologicas de piometra canina por escherichia coli
No full textLa Hiperplasia endometrial quística (HEQ) – Piometra, es una afección patológica de alto compromiso reproductivo en hembras animales domésticas como la perra y la gata de mediana y avanzada edad. Es un proceso infeccioso en donde prevalece la bacteria Escherichia coli y una elevación considerable de progesterona(P4) durante la fase lútea del ciclo estral. Este bacilo pertenece a la microbiota habitual del intestino, presente en el entorno de la zona genital de las hembras, siendo de gran importancia en la fisiopatología de la HEQP, ya que sus endotoxinas generan signos clínicos característicos de la enfermedad como letargo, depresión, anorexia, poliuria, polidipsia, vómito y fiebre, comprometiendo inicialmente la capacidad reproductiva de la paciente y debido a sus complejidades puede desencadenar la muerte de la misma.We speak that Cystic Endometrial Hyperplasia (HEQ) - Pyometra, is a pathological condition of high reproductive compromise in female domestic animals such as bitches and cats of middle and advanced age. It is an infectious process where E. coli bacteria and a high elevation of progesterone prevail during the luteal phase of the estrous cycle. The Gram (-) bacillus is present in the genital area of females and in the anal area, being of great importance in the pathophysiology of HEQP, since its endotoxins generate characteristic clinical signs of the disease such as lethargy, depression, anorexia, polyuria, polydipsia, vomiting and fever (Faldyna et al., 2001; De Bosschere et al., 2002, initially compromising the reproductive capacity of the patient and due to its complexities can trigger her death.Resumen. -- Introducción. -- Etiología. -- Acción. -- Transmisión. -- Signos clínicos. -- Diagnóstico. -- Patogenia. -- Tratamiento. -- Discusión. -- Conclusión. -- Referencias bibliográ[email protected]@[email protected]
Search for monotop signatures in proton-proton collisions at √s = 8 TeV
No full textThis article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.Results are presented from a search for new decaying massive particles whose presence is inferred from an imbalance in transverse momentum and which are produced in association with a single top quark that decays into a bottom quark and two light quarks. The measurement is performed using 19.7 fb-1 of data from proton-proton collisions at a center-of-mass energy of 8 TeV, collected with the CMS detector at the CERN LHC. No deviations from the standard model predictions are observed and lower limits are set on the masses of new invisible bosons. In particular, scalar and vector particles, with masses below 330 and 650 GeV, respectively, are excluded at 95% confidence level, thereby substantially extending a previous limit published by the CDF Collaboration
Study of vector boson scattering and search for new physics in events with two same-sign leptons and two jets
No full textThis article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.A study of vector boson scattering in pp collisions at a center-of-mass energy of 8 TeV is presented. The data sample corresponds to an integrated luminosity of 19.4fb-1 collected with the CMS detector. Candidate events are selected with exactly two leptons of the same charge, two jets with large rapidity separation and high dijet mass, and moderate missing transverse energy. The signal region is expected to be dominated by electroweak same-sign W-boson pair production. The observation agrees with the standard model prediction. The observed significance is 2.0 standard deviations, where a significance of 3.1 standard deviations is expected based on the standard model. Cross section measurements for W±W± and WZ processes in the fiducial region are reported. Bounds on the structure of quartic vector-boson interactions are given in the framework of dimension-eight effective field theory operators, as well as limits on the production of doubly charged Higgs bosons
Search for jet extinction in the inclusive jet-pT spectrum from proton-proton collisions at s=8 TeV
No full textPublished by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published articles title, journal citation, and DOI.The first search at the LHC for the extinction of QCD jet production is presented, using data collected with the CMS detector corresponding to an integrated luminosity of 10.7 fb−1 of proton-proton collisions at a center-of-mass energy of 8 TeV. The extinction model studied in this analysis is motivated by the search for signatures of strong gravity at the TeV scale (terascale gravity) and assumes the existence of string couplings in the strong-coupling limit. In this limit, the string model predicts the suppression of all high-transverse-momentum standard model processes, including jet production, beyond a certain energy scale. To test this prediction, the measured transverse-momentum spectrum is compared to the theoretical prediction of the standard model. No significant deficit of events is found at high transverse momentum. A 95% confidence level lower limit of 3.3 TeV is set on the extinction mass scale
Carotid plaque detection improves the predictve value of CHA2DS2-VASc score in patients with non-valvular atrial fibrilation: The ARAPACIS Study
No full textBackground and aims: Vascular disease (VD), as assessed by history of myocardial infarction or peripheral artery
disease or aortic plaque, increases stroke risk in atrial fibrillation (AF), and is a component of risk assessment
using the CHA2DS2-VASc score. We investigated if systemic atherosclerosis as detected by ultrasound carotid
plaque (CP) could improve the predictive value of the CHA2DS2-VASc score.
Methods:Weanalysed data fromthe ARAPACIS study, an observational study including 2027 Italian patientswith
non-valvular AF, in whom CP was detected using Doppler Ultrasonography.
Results: VD was reported in 351 (17.3%) patients while CP was detected in 16.6% patients. Adding CP to the VD
definition leaded to higher VD prevalence (30.9%).
During amedian [IQR] follow-up time of 36months, 56 (2.8%) stroke/TIA eventswere recorded. Survival analysis
showed that conventional VD alone did not increase the risk of stroke (Log-Rank: 0.009, p=0.924), while addition
of CP to conventional VD was significantly associated to an increased risk of stroke (LR: 5.730, p = 0.017).
Cox regression analysis showed that VD + CP was independently associated with stroke (HR: 1.78, 95% CI:
1.05–3.01, p=0.0318). Reclassification analysis showed that VD + CP allowed a significant risk reclassification
when compared to VD alone in predicting stroke at 36 months (NRI: 0.192, 95% CI: 0.028–0.323, p = 0.032).
Conclusions: In non-valvular AF patients the addition of ultrasound detection of carotid plaque to conventional
VD significantly increases the predictive value of CHA2DS2-VASc score for stroke
Photography-based taxonomy is inadequate, unnecessary, and potentially harmful for biological sciences
No full textThe question whether taxonomic descriptions naming new animal species without type specimen(s) deposited in collections should be accepted for publication by scientific journals and allowed by the Code has already been discussed in Zootaxa (Dubois & Nemésio 2007; Donegan 2008, 2009; Nemésio 2009a–b; Dubois 2009; Gentile & Snell 2009; Minelli 2009; Cianferoni & Bartolozzi 2016; Amorim et al. 2016). This question was again raised in a letter supported
by 35 signatories published in the journal Nature (Pape et al. 2016) on 15 September 2016. On 25 September 2016, the following rebuttal (strictly limited to 300 words as per the editorial rules of Nature) was submitted to Nature, which on
18 October 2016 refused to publish it. As we think this problem is a very important one for zoological taxonomy, this text is published here exactly as submitted to Nature, followed by the list of the 493 taxonomists and collection-based
researchers who signed it in the short time span from 20 September to 6 October 2016
