Lista de los coleópteros acuáticos (Coleoptera: Adephaga, Polyphaga) de Jesús Menéndez, Las Tunas, Cuba

Se realizó un estudio de la fauna de escarabajos acuáticos del municipio Jesús Menéndez en la provincia de Las Tunas. Fueron registrados 666 ejemplares, pertenecientes a seis familias, 22 géneros y 30 especies. La especie Tropisternus chalybeus Castelnau, 1840 constituye nuevo registro para la región Oriental de Cuba

Phase Locking Induces Scale-Free Topologies in Networks of Coupled Oscillators

An initial unsynchronized ensemble of networking phase oscillators is further subjected to a growing process where a set of forcing oscillators, each one of them following the dynamics of a frequency pacemaker, are added to the pristine graph. Linking rules based on dynamical criteria are followed in the attachment process to force phase locking of the network with the external pacemaker. We show that the eventual locking occurs in correspondence to the arousal of a scale-free degree distribution in the original graph

Signos de alarma para el diagnóstico de las inmunodeficiencias primarias. Una propuesta adaptada a la provincia de Cienfuegos

Fundamento: las enfermedades por inmunodeficiencias son un grupo heterogéneo de trastornos que reflejan un déficit cuantitativo y/o cualitativo en uno o más componentes del sistema inmune. La rápida remisión de estos casos a la consulta de inmunología disminuye la morbilidad y mortalidad.Objetivo: establecer los signos de alarma para el diagnóstico de una inmunodeficiencia primaria, que servirán de criterio de remisión en la provincia de Cienfuegos.Métodos: se revisaron 11 artículos sobre los signos de alarma para el diagnóstico de las inmunodeficiencias primarias, publicados por asociaciones y organizaciones internacionales dedicadas a la inmunología. Se determinó del valor diagnóstico del signo como criterio para su inclusión en la relación de signos de alarma de esta enfermedad. Resultados: se establecieron 15 signos de alarma basados en su frecuencia de reporte y/o valor diagnóstico atribuido.Conclusiones: los signos de alarma establecidos por el grupo provincial de inmunología de Cienfuegos se tomarán como criterios de remisión a consulta de inmunología por sospecha de inmunodeficiencia primaria, lo que podrá contribuir a disminuir su morbilidad.</p

Signos de alarma para el diagnóstico de las inmunodeficiencias primarias. Una propuesta adaptada a la provincia de Cienfuegos

Fundamento: las enfermedades por inmunodeficiencias son un grupo heterogéneo de trastornos que reflejan un déficit cuantitativo y/o cualitativo en uno o más componentes del sistema inmune. La rápida remisión de estos casos a la consulta de inmunología disminuye la morbilidad y mortalidad.Objetivo: establecer los signos de alarma para el diagnóstico de una inmunodeficiencia primaria, que servirán de criterio de remisión en la provincia de Cienfuegos.Métodos: se revisaron 11 artículos sobre los signos de alarma para el diagnóstico de las inmunodeficiencias primarias, publicados por asociaciones y organizaciones internacionales dedicadas a la inmunología. Se determinó del valor diagnóstico del signo como criterio para su inclusión en la relación de signos de alarma de esta enfermedad. Resultados: se establecieron 15 signos de alarma basados en su frecuencia de reporte y/o valor diagnóstico atribuido.Conclusiones: los signos de alarma establecidos por el grupo provincial de inmunología de Cienfuegos se tomarán como criterios de remisión a consulta de inmunología por sospecha de inmunodeficiencia primaria, lo que podrá contribuir a disminuir su morbilidad.</p

Synchronization in complex networks

Synchronization processes in populations of locally interacting elements are in the focus of intense research in physical, biological, chemical, technological and social systems. The many efforts devoted to understand synchronization phenomena in natural systems take now advantage of the recent theory of complex networks. In this review, we report the advances in the comprehension of synchronization phenomena when oscillating elements are constrained to interact in a complex network topology. We also overview the new emergent features coming out from the interplay between the structure and the function of the underlying pattern of connections. Extensive numerical work as well as analytical approaches to the problem are presented. Finally, we review several applications of synchronization in complex networks to different disciplines: biological systems and neuroscience, engineering and computer science, and economy and social sciences.Comment: Final version published in Physics Reports. More information available at http://synchronets.googlepages.com

Identification of a functional variant in the KIF5A-CYP27B1-METTL1-FAM119B locus associated with multiple sclerosis.

Background and aim: Several studies have highlighted the association of the 12q13.3-12q14.1 region with coeliac disease, type 1 diabetes, rheumatoid arthritis and multiple sclerosis (MS); however, the causal variants underlying diseases are still unclear. The authors sought to identify the functional variant of this region associated with MS. Methods: Tag-single nucleotide polymorphism (SNP) analysis of the associated region encoding 15 genes was performed in 2876 MS patients and 2910 healthy Caucasian controls together with expression regulation analyses. Results: rs6581155, which tagged 18 variants within a region where 9 genes map, was sufficient to model the association. This SNP was in total linkage disequilibrium (LD) with other polymorphisms that associated with the expression levels of FAM119B, AVIL, TSFM, TSPAN31 and CYP27B1 genes in different expression quantitative trait loci studies. Functional annotations from Encyclopedia of DNA Elements (ENCODE) showed that six out of these rs6581155-tagged-SNPs were located in regions with regulatory potential and only one of them, rs10877013, exhibited allele-dependent (ratio A/G=9.5-fold) and orientation-dependent (forward/reverse=2.7-fold) enhancer activity as determined by luciferase reporter assays. This enhancer is located in a region where a long-range chromatin interaction among the promoters and promoter-enhancer of several genes has been described, possibly affecting their expression simultaneously. Conclusions: This study determines a functional variant which alters the enhancer activity of a regulatory element in the locus affecting the expression of several genes and explains the association of the 12q13.3-12q14.1 region with MS

Modulation of apoptosis by V protein mumps virus

<p>Abstract</p> <p>Background</p> <p>The Urabe AM9 vaccine strain of mumps virus contains two variants of V protein: VWT (of HN-A1081 viral population) and VGly (of HN-G1081). The V protein is a promoting factor of viral replication by blocking the IFN antiviral pathway.</p> <p>Findings</p> <p>We studied the relationship between V protein variants and IFN-α2b-induced apoptosis. V proteins decrease activation of the extrinsic IFN-α2b-induced apoptotic pathway monitored by the caspase 8 activity, being the effect greater with the VWT protein. Both V proteins decrease the activity of caspase 9 of the intrinsic apoptotic pathway. In a system without IFN, the VWT and VGly proteins expression promotes activation of caspases 3 and 7. However, when the cellular system was stimulated with IFN-α, this activity decreased partially. TUNEL assay shows that for treatment with IFN-α and ibuprofen of cervical adenocarcinoma cells there is nuclear DNA fragmentation but the V protein expression reduces this process.</p> <p>Conclusions</p> <p>The reduction in the levels of caspases and DNA fragmentation, suggesting that V protein, particularly VWT protein of Urabe AM9 vaccine strain, modulates apoptosis. In addition, the VWT protein shows a protective role for cell proliferation in the presence of antiproliferative signals.</p

The Kuramoto model in complex networks

181 pages, 48 figures. In Press, Accepted Manuscript, Physics Reports 2015 Acknowledgments We are indebted with B. Sonnenschein, E. R. dos Santos, P. Schultz, C. Grabow, M. Ha and C. Choi for insightful and helpful discussions. T.P. acknowledges FAPESP (No. 2012/22160-7 and No. 2015/02486-3) and IRTG 1740. P.J. thanks founding from the China Scholarship Council (CSC). F.A.R. acknowledges CNPq (Grant No. 305940/2010-4) and FAPESP (Grants No. 2011/50761-2 and No. 2013/26416-9) for financial support. J.K. would like to acknowledge IRTG 1740 (DFG and FAPESP).Peer reviewedPreprin

Measurement of inclusive and differential cross sections for single top quark production in association with a W boson in proton-proton collisions at s \sqrt{s} = 13 TeV

Measurements of the inclusive and normalised differential cross sections are presented for the production of single top quarks in association with a W boson in proton-proton collisions at a centre-of-mass energy of 13 TeV. The data used were recorded with the CMS detector at the LHC during 2016-2018, and correspond to an integrated luminosity of 138 fb$^{−1}$. Events containing one electron and one muon in the final state are analysed. For the inclusive measurement, a multivariate discriminant, exploiting the kinematic properties of the events is used to separate the signal from the dominant $t\bar{t}$ background. A cross section of 79.2 ± 0.9 (stat) $^{+7.7}_{−8.0}$ (syst) ± 1.2 (lumi) pb is obtained, consistent with the predictions of the standard model. For the differential measurements, a fiducial region is defined according to the detector acceptance, and the requirement of exactly one jet coming from the fragmentation of a bottom quark. The resulting distributions are unfolded to particle level and agree with the predictions at next-to-leading order in perturbative quantum chromodynamics

Search for long-lived particles decaying to a pair of muons in proton-proton collisions at s \sqrt{s} = 13 TeV

An inclusive search for long-lived exotic particles decaying to a pair of muons is presented. The search uses data collected by the CMS experiment at the CERN LHC in proton-proton collisions at s√ = 13 TeV in 2016 and 2018 and corresponding to an integrated luminosity of 97.6 fb−1. The experimental signature is a pair of oppositely charged muons originating from a common secondary vertex spatially separated from the pp interaction point by distances ranging from several hundred μm to several meters. The results are interpreted in the frameworks of the hidden Abelian Higgs model, in which the Higgs boson decays to a pair of long-lived dark photons ZD, and of a simplified model, in which long-lived particles are produced in decays of an exotic heavy neutral scalar boson. For the hidden Abelian Higgs model with m(ZD) greater than 20 GeV and less than half the mass of the Higgs boson, they provide the best limits to date on the branching fraction of the Higgs boson to dark photons for cτ(ZD) (varying with m(ZD)) between 0.03 and ≈0.5 mm, and above ≈0.5 m. Our results also yield the best constraints on long-lived particles with masses larger than 10 GeV produced in decays of an exotic scalar boson heavier than the Higgs boson and decaying to a pair of muons