Comment on "Lattice Gluon and Ghost Propagators, and the Strong Coupling in Pure SU(3)SU(3) Yang-Mills Theory: Finite Lattice Spacing and Volume Effects"

The authors of ref. Phys.Rev. D94 (2016) no.1, 014502 reported about a careful analysis of the impact of lattice artifacts on the $SU(3)$ gauge-field propagators. In particular, they found that the low-momentum behavior of the renormalized propagators depends on the lattice bare coupling and interpreted this fact as the result of it being affected by finite lattice spacing artifacts. We do not share this interpretation and present here a different and more suitable explanation for these results

Planning and Logistics Issues raised by the Individual System Tests during the Installation of the LHC

The running of individual system tests has to fit within tight constraints of the LHC installation planning and of CERN's accelerator activity in general. For instance, the short circuit tests of the power converters that are performed in-situ restrict the possibility to work in neighbouring areas; much in the same way, the cold tests of the cryogenic distribution line involve safety access restrictions that are not compatible with the transport and installation of cryo-magnets or interconnect activities in the sector considered. Still, these individual system tests correspond to milestones that are required to insure that we can continue with the installation of machine elements. This paper reviews the conditions required to perform the individual system tests and describe how the general LHC installation planning is organised to allocate periods for these tests

The strong running coupling from the gauge sector of Domain Wall lattice QCD with physical quark masses

We report on the first computation of the strong running coupling at the physical point (physical pion mass) from the ghost-gluon vertex, computed from lattice simulations with three flavors of Domain Wall fermions. We find $\alpha_{\overline{\rm MS}}(m_Z^2)=0.1172(11)$, in remarkably good agreement with the world-wide average. Our computational bridge to this value is the Taylor-scheme strong coupling, which has been revealed of great interest by itself because it can be directly related to the quark-gluon interaction kernel in continuum approaches to the QCD bound-state problem.Comment: 6 pages, 3 figures, v2: references adde

Ghost-gluon coupling, power corrections and ΛMS‾\Lambda_{\overline {\rm MS}} from twisted-mass lattice QCD at Nf=2

We present results concerning the non-perturbative evaluation of the ghost-gluon running QCD coupling constant from $N_f=2$ twisted-mass lattice calculations. A novel method for calibrating the lattice spacing, independent of the string tension and hadron spectrum is presented with results in agreement with previous estimates. The value of $\Lambda_{\overline{MS}}$ is computed from the running of the QCD coupling only after extrapolating to zero dynamical quark mass and after removing a non-perturbative OPE contribution that is assumed to be dominated by the dimension-two \VEV{A^2} gluon condensate. The effect due to the dynamical quark mass in the determination of \Lams is discussed.Comment: 33 pages, 6 fig

Human immunodeficiency virus and other sexually transmitted diseases in Cuban women

ABSTRACTA cross-sectional study was performed in 60 Cuban women of child-bearing age who were sero-positive for human immunodeficiency virus (HIV) and 60 controls. Human papillomavirus (HPV) was identified most frequently, with oncogenic HPV serotypes 16, 33 and 58 detected in HIV-positive patients, and serotypes 11, 33 and 51 in the controls (relative risk 4.41; 95% CI 2.21– 8.29). Syphilis and hepatitis B and C viruses were detected exclusively in HIV-sero-positive women (p < 0.05). Sexually transmitted diseases (STDs) appeared to pose a substantial health problem, especially for HIV-positive women. Clinics should consider screening and treatment for STDs as part of their HIV prevention programmes

Trends of Rural Tropospheric Ozone at the Northwest of the Iberian Peninsula

Tropospheric ozone levels around urban and suburban areas at Europe and North America had increased during 80's–90's, until the application of NOx reduction strategies. However, as it was expected, this ozone depletion was not proportional to the emissions reduction. On the other hand, rural ozone levels show different trends, with peaks reduction and average increments; this different evolution could be explained by either emission changes or climate variability in a region. In this work, trends of tropospheric ozone episodes at rural sites in the northwest of the Iberian Peninsula were analyzed and compared to others observed in different regions of the Atlantic European coast. Special interest was focused on the air quality sites characterization, in order to guarantee their rural character in terms of air quality. Both episodic local meteorological and air quality measurements along five years were considered, in order to study possible meteorological influences in ozone levels, different to other European Atlantic regions

Synthesis of carbohydrate-derived (Z)-vinyl halides and silanes: Samarium-promoted stereoselective 1,2-elimination on sugar-derived a-halomethylcarbinol acetates

Thanks are due to the Spanish Ministerio de Economía y Competitividad (CTQ2010-14959, CTQ2014-55015-P), for financial support. University of Aveiro and FCT/MEC for the financial support of the QOPNA research unit (FCTUID/QUI/00062/2013) through national funds and, where applicable, co-financed by the FEDER,within the PT2020 Partnership Agreement, and to the Portuguese NMR Network

Obesity by BMI and central obesity in adolescents from Comodoro Rivadavia, Patagonia Argentina

Antecedentes: La prevalencia de obesidad infantil y adolescente resulta relevante ya que con frecuencia el sobrepeso a esa edad persistirá en la vida adulta. Objetivo: Determinar sobrepeso y obesidad en una población adolescente de Comodoro Rivadavia, Patagonia Argentina. Métodos: Se utilizaron las tablas propuestas para el índice de masa corporal (IMC) y la circunferencia de cintura (CC) por los siguientes tres grupos: International Obesity Taskforce (IOTF), Centers for Disease Control and Prevention (CDC) y la Organización Mundial de la Salud (OMS). Se evaluó el grado de concordancia en las definiciones, en relación a las tablas empleadas. Se estudiaron por muestreo no probabilístico y consecutivo, 402 voluntarios (279 mujeres y 123 varones) de edades comprendidas entre 12 y 16 ± 0,5 años. Con consentimiento escrito de los padres y asentimiento de los voluntarios, se midió peso, talla presión arterial y CC. Se calcularon percentiles del IMC y de la CC. Resultados: Al utilizar tanto las tablas IOTF como CDC más del 40 % de la población presentó sobrepeso u obesidad según el IMC. No se evidenciaron diferencias estadísticamente significativas al evaluar sobrepeso según sexo mientras que los varones presentaron mayores índices de obesidad con ambas definiciones (p0,05). Conclusiones: La prevalencia de obesidad es elevada tanto al considerar percentiles tanto de IMC, como de CC. El grado de acuerdo de las definiciones es adecuado. Estos resultados aportan información regional inexistente hasta este momento y alertan sobre una situación que requiere una urgente intervención sanitaria.Background: The prevalence of overweight and obesity in childhood and adolescence is important because it will frequently persist in adult life. Objective: To determine overweight and obesity in a group of adolescents from Comodoro Rivadavia, Argentine Patagonia through the use of body mass index (BMI) and waist circumference. Methods: Obesity Taskforce (IOTF), Centers for Disease Control and Prevention (CDC) and Word Health Organization (WHO) tables were used. The agreement degree in the definitions was evaluated in relation with the tables used. 402 volunteers were studied, aged between 12 to 16 years old ± 0.5. Written parental consent and assent of volunteers were obtained. Anthropometry, blood pressure were measured, andbody mass index and waist circumference´s percentile (Pc) were calculated. Results: Over 40 % of the adolescents were obese or overweight (BMI equal or major 95 or 85, respectively). There weren´t significant statistic difference between overweight and gender while the males showed majors obesity index with both definitions (p0.05). Conclusions: The prevalence of obesity is high with both BMI, as waist circumference percentiles. The degree agreement of the definition is adequate. These results contribute regional information that actually it is non-existent up to now and it alert about a situation that requires an urgent sanitary intervention.Fil: Ponce, Graciela M.. Universidad Nacional de la Patagonia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Quezada, Andrés O.. Universidad Nacional de la Patagonia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Rodríguez, María A. Universidad Nacional de la Patagonia; ArgentinaFil: Boeri, Mónica P.. Universidad Nacional de la Patagonia; ArgentinaFil: Soto, Mariana S.. Universidad Nacional de la Patagonia; ArgentinaFil: Brites, Fernando Daniel. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Estudio físico-químico en salchichas adicionadas con almidón de plátano macho (Musa paradisiaca)

El objetivo de este trabajo fue adicionar harina de plátano macho, la cual contiene, almidones, minerales (potasio) y fibras, con la finalidad de que este contenido sustituya al que se adiciona de forma convencional en las formulaciones de salchichas, con el propósito de obtener salchichas con buenas propiedades nutricionales, físicas y sensoriales. Se encontró que las salchichas adicionadas con harina de plátano en proporciones de 0, 20, 30 y 40%, sustituyendo a la harina de maíz, presentó una dureza mayor con diferencia significativa (P0.05), en cambio la adhesividad incrementó conforme aumentaba la adición de harina de plátano. Al probar la prueba de textura con la navaja Watner-Blatzer, se encontró una disminución en el esfuerzo al corte, conforme se aumento la concentración de harina de plátano. La Aw no tuvo ningún cambio por la adición de esta, no fue así en la capacidad de retención de agua la cual fue aumentando de una forma ligera hasta el 30% de incorporación, para posteriormente bajar en el 40%. Con respecto al color este fue disminuyendo. Se realizó la prueba de sensorial a 35 jueces no entrenados, de los cuales el 70% les gusto el producto y al 30% restante les gusto mucho

Polymerized-Type I Collagen Induces Upregulation of Foxp3-Expressing CD4 Regulatory T Cells and Downregulation of IL-17-Producing CD4+ T Cells (Th17) Cells in Collagen-Induced Arthritis

Previous studies showed that polymerized-type I collagen (polymerized collagen) exhibits potent immunoregulatory properties. This work evaluated the effect of intramuscular administration of polymerized collagen in early and established collagen-induced arthritis (CIA) in mice and analyzed changes in Th subsets following therapy. Incidence of CIA was of 100% in mice challenged with type II collagen. Clinimorphometric analysis showed a downregulation of inflammation after administration of all treatments (P < 0.05). Histological analysis showed that the CIA-mice group had extensive bone erosion, pannus and severe focal inflammatory infiltrates. In contrast, there was a remarkable reduction in the severity of arthritis in mice under polymerized collagen, methotrexate or methotrexate/polymerized collagen treatment. Polymerized Collagen but not methotrexate induced tissue joint regeneration. Polymerized Collagen and methotrexate/polymerized collagen but not methotrexate alone induces downregulation of CD4+/IL17A+ T cells and upregulation of Tregs and CD4+/IFN-γ+ T cells. Thus, Polymerized Collagen could be an effective therapeutic agent in early and established rheumatoid arthritis by exerting downregulation of autoimmune inflammation