2,029 research outputs found
Gibboryctes endroedii Duarte and Grossi 2022, sp. nov.
No full textGibboryctes endroedii Duarte and Grossi, sp. nov. (Figures 3; 6 (c); 7(c); 8(c); 9(b); 10 (c,d); 11(c); 12(e,f); 13(c); 14(b)) Diagnosis Gibboryctes endroedii differs from other Gibboryctes species by the following combination of characters: body colouration reddish brown or dark reddish brown (Figure 3); labrum subtrapezoidal with broadly rounded apex (Figure 6 (c)); maxillae with lobed galea and stipe with a triangular lateral lobe (Figure 8 (c)); pronotal sides almost completely covered with large and coalescent punctures (Figure 12 (e)); elytral interstriae densely covered with large punctures (Figure 12 (f)). Type material Holotype male dissected, labelled: (a) ‘ Brasil, Minas Gerais, Lavras/Poço Bonito, 20.xi.2012 / 1060 m, Grossi & Parizotto /criação ninhos de cupim’ [white label]; (b) ‘ Gibboryctes endroedii sp. nov. / HOLOTYPE / Duarte & Grossi det. 2021’ [red label] (CERPE). Two males and two females paratypes with same data as holotype (CERPE). Two female paratypes, labelled: (a) ‘ Brasil, Minas Gerais, Ingaí / iii.2008, termiteiro chão/Vaz-de-Mello, ab. larva’ [white label]; (CERPE). One female paratype, labelled: (a) ‘ Brasil, Minas Gerais, Ingaí / xi.2007, breed, Vaz-de - Mello leg’. [white label]; (CEMT). One male paratype, labelled: (a) ‘ Brasil, Rio de Janeiro / Itatiaia, I.1947, A. Englir’ [white label]; (CERPE). Paratypes with a yellow paratype label. Holotype description Male (Figure 3). Length : 24.6 mm. Width: 11.7 mm. Colour: Nearly completely reddish brown; protibial teeth black. Head: Clypeus triangular, transverse, 2 times wider than long, acuminate anteriorly, weakly narrowed laterally; lateral margin slightly raised; surface rugose, densely setose on sides separated by a glabrous middle area. Frontoclypeal suture with a transverse, flattened, short, subtrapezoidal tubercle. Frontal surface glabrous, transversely rugopunctate; punctures large, coalescent, C-shaped; interocular width equals 4.1 transverse eye diameter. Ocular canthus transverse, subtriangular, glabrous, with a small notch at lateroposterior outer corner. Mouthparts: Labrum subtrapezoidal, broadly rounded on apical margin (Figure 6 (c)). Mandibles with 2 teeth on outer margin; apical tooth subtriangular; basal tooth subrectangular, rounded apically, clearly larger in size compared to apical tooth (Figure 7 (c)). Maxillary galea lobed, widely rounded at apex (Figure 8 (c)); inner margin with 3 subapical teeth increasing in size towards apex; apical and basal teeth triangular; medial tooth lobed; inner margin rounded just below basal tooth; stipe expanded laterally in triangular shape (Figure 8 (c)). Maxillary palpomere II 1.6 times longer than width at middle. Labium subtriangular, slightly rounded laterally, becoming narrow towards apex; surface densely punctate; sides densely covered with long bristles; disc with scarce bristles, shorter than lateral compared to lateral bristles. Thorax: Pronotum rounded laterally in dorsal view, weakly convex in lateral view, longitudinal middle area slightly concave; anterior area with a small tubercle separated from anterior border by a deep groove; posterior pronotal border incomplete; pronotal surface almost entirely covered with ocellate punctures (Figure 9 (b)); punctures on sides deep, large, predominantly coalescent; longitudinal pronotal mid-line with a row of coalescent punctures; posterior areas on each side with shallow punctures scattered about 2 diameters of punctures. Scutellar plate subtriangular, scarcely punctate; punctures small, confined to anterior area. Elytra with 9 well-marked striae (1 sutural, 4 discal, 4 lateral); striae covered with a row of ocellate, deep, oval punctures; discal striae with contiguous punctures, gradually becoming smaller and sparser (about 1 diameter of punctures) towards posterior area; lateral striae with punctures scattered about 2 diameters of punctures, smaller compared to the discal striae; interstriae with punctures irregularly scattered, with mixed large and fine punctures. Legs: Mesotibial outer carinae with 11 stout spinules like setae (3 on basal carina, 8 on medial carina). Metatibia with 16 stout spinules like setae (6 on basal carina, 10 on medial carina). Abdomen: Tergite VIII with glabrous surface, strongly rugopunctate on lateral corners, densely punctate on discal area; punctures large, deep, from coalescent to contiguous on sides, becoming scattered about 1 diameter of punctures on disc. Ventrites I–VI rugopunctate on sides, finely punctate on discal area; ventrites II–V with an incomplete row of setigerous punctures near to posterior margin; ventrite VI glabrous, emarginate posteriorly at middle. Aedeagus: Parameres, in dorsal view, wide at basal half, becoming convergent towards a narrow apical half, covered with scarce bristles on inner edge of apex (Figure 10 (c)). Parameres, in lateral view, arched dorsally, ventrally with a longitudinal carina at middle, apex rounded, strongly constricted dorsoventrally (Figure 10 (d)). Variation Male paratypes. Length: 21.1–29.4 mm; Width: 11.0– 11.1 mm. As for holotype except the dark reddish brown colour; frontoclypeal tubercle bilobed; mandibles with lobed apical teeth; maxillae with 4 teeth at inner margin of galea; parameres widely divergent at basal half in dorsal view and with straight ventral surface in lateral view. Female paratypes. Length: 21.0– 23.37 mm; Width: 10.9–11.3 mm. As holotype except by the clypeus slightly rounded anteriorly (Figure 11 (c)); pronotum densely punctate compared to males (Figures 11 (c) and 12(e)); tergite VIII slightly convex in lateral view; ventrite VI parabolic, lacking posterior emargination (Figure 13 (c)). Etymology The specific epithet ‘ endroedii ’ is a homage to Dr Sebö Endrödi, author of the genus Gibboryctes and one of the greatest experts on Dynastinae in the twentieth century. Geographic distribution (Figure 14 (b)) Brazil (Minas Gerais, Rio de Janeiro). Remarks Gibboryctes endroedii sp. nov. resembles G. szelenyii in the reddish-brown body colour and elytral interstriae densely covered with punctures mixed among small and shallow, and large and deep. Besides this, males of G. endroedii have variations in the shape of parameres that sometimes overlap those observed in G. szelenyii. However, G. endroedii sp. nov. is clearly distinct by the labrum parabolic in shape; maxillary galea rounded at apex with all teeth located subapically on the inner margin; anterior corners of pronotum covered with large and coalescent punctures. Gibboryctes szelenyii have triangular labrum; triangular maxillary galea with all teeth located at middle of inner margin; anterior corners of pronotum with contiguous punctures or spaced about 1 diameter of punctures. Identification key to adults of Gibboryctes Endrödi 1. Body with dark reddish-brown or reddish-brown colouration (Figures 1; 3). Frons rugopunctate in female (Figure 11 (a,b)). Juxtasutural interstriae with large and dense punctures scattered from anterior to posterior elytral area (Figure 12 (b,f))................. 2 - Body with black colour (Figure 2a). Frons punctate in female (Figure 11 (b)). Juxtasutural interstriae with large punctures scarce and confined to anterior elytral area (Figure 12 (d)). Male unknown.. Gibboryctes ebeninus Duarte and Grossi sp. nov. 2. Labrum subtrapezoidal, with broadly rounded apex (Figure 6 (c)). Galea broadly rounded at apex (Figure 8 (c)). Punctures on the anterior pronotal corners predominantly coalescent (Figure 12 (e))......... Gibboyctes endroedii Duarte and Grossi sp. nov. - Labrum subtriangular (Figure 6 (a)). Galea triangular (Figure 8 (a)). Punctures on the pronotal corners predominantly contiguous (Figure 12 (a))..................................................................................................................................................................... Gibboryctes szelenyii Endrödi Notes on natural history of Gibboryctes Specimes of Gibboryctes szelenyii and G. endroedii sp. nov. were collected inside of epigeous termite nests (Blattodea:Isoptera: Termitidae). Gibboryctes szelenyii was found to be associated with many termite species (see remarks under G. szelenyii). Termites were not collected from the nests where specimens of G. endroedii were found. The localities of nests are marked by shrub vegetation and rocky outcrops characteristic of open areas of savannah and rupestrian grasslands (Figure 15 (a,b)). Adults, pupae and larvae of G. szelenyii and G. endroedii sp. nov. were found occupying the central portion of nests (Figure 16 (a–d)). When handled, the larvae emitted a stridulation sound produced by friction among the mandibles and maxillae. Furthermore, the larvae were observed building rigid galleries structured with faeces and saliva.The pupal chamber is also quite rigid,perhaps to avoid termite attacks (Figure 16 (c)).The larval excrement, when dried, acquires a peculiar aspect similar to ‘pellets’, flattened and subrectangular, with almost straight corners (90-degree angles),and which can be considered a diagnostic character for generic identification. This discovery represents the first record of an Oryctini associated with a termite nest. Regarding G. ebeninus sp. nov., only adults were collected, in an area under a Eucalyptus crop where a Pennsylvania light trap was installed, which perhaps attracted the specimens. Identification key to adults of Gibboryctes Endrödi 1. Body with dark reddish-brown or reddish-brown colouration (Figures 1; 3). Frons rugopunctate in female (Figure 11 (a,b)). Juxtasutural interstriae with large and dense punctures scattered from anterior to posterior elytral area (Figure 12 (b,f))................. 2 - Body with black colour (Figure 2a). Frons punctate in female (Figure 11 (b)). Juxtasutural interstriae with large punctures scarce and confined to anterior elytral area (Figure 12 (d)). Male unknown.. Gibboryctes ebeninus Duarte and Grossi sp. nov. 2. Labrum subtrapezoidal, with broadly rounded apex (Figure 6 (c)). Galea broadly rounded at apex (Figure 8 (c)). Punctures on the anterior pronotal corners predominantly coalescent (Figure 12 (e))......... Gibboyctes endroedii Duarte and Grossi sp. nov. - Labrum subtriangular (Figure 6 (a)). Galea triangular (Figure 8 (a)). Punctures on the pronotal corners predominantly contiguous (Figure 12 (a))..................................................................................................................................................................... Gibboryctes szelenyii Endrödi Notes on natural history of Gibboryctes Specimes of Gibboryctes szelenyii and G. endroedii sp. nov. were collected inside of epigeous termite nests (Blattodea:Isoptera: Termitidae). Gibboryctes szelenyii was found to be associated with many termite species (see remarks under G. szelenyii). Termites were not collected from the nests where specimens of G. endroedii were found. The localities of nests are marked by shrub vegetation and rocky outcrops characteristic of open areas of savannah and rupestrian grasslands (Figure 15 (a,b)). Adults, pupae and larvae of G. szelenyii and G. endroedii sp. nov. were found occupying the central portion of nests (Figure 16 (a–d)). When handled, the larvae emitted a stridulation sound produced by friction among the mandibles and maxillae. Furthermore, the larvae were observed building rigid galleries structured with faeces and saliva.The pupal chamber is also quite rigid,perhaps to avoid termite attacks (Figure 16 (c)).The larval excrement, when dried, acquires a peculiar aspect similar to ‘pellets’, flattened and subrectangular, with almost straight corners (90-degree angles),and which can be considered a diagnostic character for generic identification. This discovery represents the first record of an Oryctini associated with a termite nest. Regarding G. ebeninus sp. nov., only adults were collected, in an area under a Eucalyptus crop where a Pennsylvania light trap was installed, which perhaps attracted the specimens.Published as part of Costa, Leidiane O., Duarte, Paulo R. M., Iannuzzi, Luciana & Grossi, Paschoal C., 2022, Taxonomic revision and notes on natural history of the enigmatic beetle genus Gibboryctes Endrödi (Coleoptera: Melolonthidae: Dynastinae), pp. 191-225 in Journal of Natural History 56 (1 - 4) on pages 212-214, DOI: 10.1080/00222933.2021.2017499, http://zenodo.org/record/675831
Bothynus araya Duarte & Grossi 2020, new species
No full textBothynus araya Duarte & Grossi, new species (Figs. 5 A–F; 7B; 8E; 9E; 10D, F; 12E) Diagnosis. Both sexes of B. araya are similar to B. entellus; however B. araya can be distinguished using the following characters: stridulatory apparatus with well-marked carinae near to basal margin in both sexes (Fig. 7B); parameres with lateral “flaps” distinctly as narrow as basal half (Fig. 8E); female differ from the females of other species in this group by the pronotum with weakly punctate concavity and smooth discal area (Fig. 10D) and proventrite with a long furrow at anterolateral angles (Fig. 10F). Etymology. The specific epithet is named as tribute to the grandmother of the first author. The name “araya” originates from the Tupi-Guarani dialect, meaning “grandmother”. This name should be treated as a noun in apposition. Type material. Holotype not dissected. Brasil: Paraná: Guarapuava, 3.IV.2012, Oliveira. G.B. – 1♂ (CERPE). Paratypes [16 males and 2 females]. One male and one female with same data as holotype (CERPE). Brasil: Minas Gerais: Poços de Caldas, XI.1995,— 1♂ (YPC). Paraná: Castro, Estrada Castro-Tibagi, Km 15, 15.XII.2006, P. Grossi & Parizotto— 1♂ (EPGC). Brasil: Santa Catarina: Campos Novos, (27º23’S, 51º12’W), II.2011, armadilha pitfall, R.C. Campos—(1♂ MAHC, 5♂ 1♀ CERPE, 4♂ CEMT). Paraguay: Caaguazú: Sommerfeld, I.1962 — 1♂ (MAHC). No data —(1♂ CERPE, 1♂ YPC). Description. Holotype male (Fig. 5A). Body l ength: 25.0 mm. Body width: 14.0 mm. Color: Dark brown. Head: Clypeus subpentagonal in shape, moderately punctate, weakly setose on sides, strongly constricted laterally at apical half, basal half with parallel and slightly raised sides. Frontoclypeal suture with a weak ridge interrupted at middle, nearly reaching the lateral margins. Interocular width equals 2.8 transverse eye diameters, frontal surface weakly rugopunctate, sides scarcely setose, basal area between eyes smooth. Eye canthus subquadrate. Mouthparts: Mandibles bidentate, teeth subtriangular. Mentum subtriangular, convex at disc, weakly rounded and densely covered with setose punctures on sides, disc smooth. Maxilla with quadridentate galea; 1 apical tooth (strong), 2 medial teeth (1 weak, 1 strong), 1 basal tooth (weak). Pronotum: Moderately convex, without horns, only with 1 small, conic-shaped apical tubercle; concavity V-shaped, shallow, confined to anterior area (Fig. 5A), hypomeron convergent (Fig. 5D); surface finely punctate Scutellar shield: Triangular in shape, smooth. Elytra: Surface with barely marked longitudinal striae, finely punctate, only observed under 90X magnification. Legs: Inner protarsal claw dilated, protarsomere IV with short ventral apex (Fig. 5E). Mesofemora with setae confined on disc (Fig. 5F). Mesotibiae slightly convex on external surface. Abdomen: Ventrites I–IV completely setose, V setose only on sides, VI bordered with setae on apex. Tergite VII with stridulatory apparatus formed by a band of transversal carinae well marked on the basal area, becoming finely marked toward the apical area (Fig. 7B). Tergite VIII with weak, setose punctures confined to sides, disc smooth. Variation. Male paratypes differ from holotype in the following aspects: Body length: 21.0– 26.5 mm. Body width: 11.0–13.0 mm. Color: Pronotal and elytral surface with variation from dark reddish brown to reddish brown. Pronotum: Concavity occasionally small and shallow compared to holotype, sometimes U-shaped. Aedeagus: Parameres in caudal view (Fig. 8E), middle area abruptly constricted on sides, apical half expanded in shape of subparallel lateral “flaps”, as narrow as the basal half. In lateral view, apex downcurved (Fig. 9E). Female paratypes (Fig. 5B) differs in the following aspects: Body length: 21.0– 26.5 mm. Body width: 11.0–13.0. Pronotum: Concavity rounded, small, confined near to anterior margin; latero-anterior surface moderately punctate, concavity weakly punctate, disc smooth (Fig. 10D). Legs: Protarsus not thickened, claws simple. Venter: Proventrite with a long furrow at anterolateral angles (Fig. 10F). Abdomen: Ventrite VI triangular shaped, not emarginate apically. Tergite VIII flattened in lateral view. Geographic distribution. Brazil: Minas Gerais, Paraná, Santa Catarina. Paraguay: Caaguazú (Fig. 12E). Bothynus araya occurs in open fields predominantly characterized as having shrubby vegetation within the “Campos Gerais” region from southern Brazilian to Paraguay.Published as part of Duarte, Paulo R. M. & Grossi, Paschoal C., 2020, Bothynus entellus (LePeletier & Serville) (Coleoptera: Scarabaeidae: Dynastinae) species group: taxonomic revision and description of two new species, pp. 101-121 in Zootaxa 4750 (1) on pages 111-113, DOI: 10.11646/zootaxa.4750.1.5, http://zenodo.org/record/370286
El Tlacuache Núm. 298 (2008). 298 Año 9 (2008) febrero. El Tlacuache
No full textRemodelación de la Plazuela del Zacate por Fernando Duarte Soriano. - Representación del Dragón Olmeca por G. Manuel Barragán Dorantes. - El Yauhtli por Margarita Avilés Flores y Macrina Fuentes Mata
Perfil lipídico y riesgo cardiovascular en octogenarios atendidos en Consulta Externa de Cardiología, Hospital Luis Vernaza, período 2014-2015
No full textPDFLa dislipidemia es uno de los factores de riesgo cardiovascular predominantes en la
población octogenaria a nivel global; pese a esto, con relativa frecuencia los ensayos clínicos
han relegado a este grupo etario, cada vez más numeroso en nuestra sociedad. Se realizó
estudio analítico, correlacional, no experimental, retrospectivo, que se realizó en la consulta
externa de Cardiología del Hospital Luis Vernaza (HLV). Se incluyeron a todos los sujetos
≥ 80 años que acudieron entre enero 2014 hasta diciembre 2015, que tuvieron registros de
historia clínica, análisis del perfil lipídico, a los cuales se los clasificó en dos grupos:
pacientes que no recibieron hipolipemiantes y pacientes que fueron tratados con
hipolipemiantes. Obtuvimos en el grupo general, colesterol total: 177 mg/dl (DE±39), p =
0.041; HDL-C: 49 mg/dl (DE±14), p = 0.802; No HDL-C: 128 mg/dl (DE±40), p = 0.088;
triglicéridos: 129 mg/dl (DE±64), p = 0.143; LDL-C: 113 mg/dl (DE±38), p = 0.034. En
relación a comorbilidades tuvimos Hipertensión Arterial 94%; Diabetes Mellitus Tipo 2:
20%; Cardiopatía Isquémica 11%; Stroke 14%. De lo anterior podemos concluir que el
Colesterol Total y LDL-C fueron estadísticamente significativos; HDL-C, No HDL-C,
triglicéridos no obtuvieron significación estadística; en comorbilidades predominó la HTA,
seguidos de DM2, IRC, Cardiopatía Isquémica, Stroke y patología tiroidea. La asociación
entre HTA, DM2, Cardiopatía Isquémica y el perfil lipídico no obtuvieron significación
estadística.The dyslipidemia is one of the predominant factors of cardiovascular risk in the
octogenarian population globally; despite this, relatively frequently clinical trials have
relegated this, increasingly numerous age group in our society. It was an analytical,
correlational, not experimental, retrospective study, which was conducted in the outpatient
department of Cardiology Luis Vernaza Hospital (HLV). We included all subjects ≥ 80 years
who attended between January 2014 to December 2015, which had records of history,
analysis of lipid profile, to which were classified into two groups: patients who did not
receive lipid-lowering and patients who were treated with lipid-lowering. The overall group
total cholesterol: 177 mg / dl (SD± 39), p = 0.041; HDL-C: 49 mg / dl (SD ± 14), p = 0.802;
Non-HDL-C: 128 mg / dl (SD ± 40), p = 0.088; triglycerides 129 mg / dl (SD ± 64), p =
0.143; LDL-C: 113 mg / dl (SD ± 38), p = 0.034. Regarding comorbidities had hypertension
94%; Type 2 Diabetes Mellitus 20%; Ischemic heart disease 11%; Stroke 14%. From this we
can conclude there was a considerable amount of patients receiving lipid-lowering; Total
cholesterol and LDL-C were statistically significant; HDL-C, No HDL-C, triglycerides were
not statistically significant; in comorbid hypertension he predominated, followed by DM2,
IRC, Ischemic Heart Disease, Stroke and thyroid disease. The association between
hypertension, DM2, ischemic heart disease and lipid profile did not reach statistical
significance.Universidad de Guayaquil. Facultad de Ciencias Médicas. Escuela de Graduado
Variational multiscale method for coupled systems: free-surface flows and stratified turbulence
No full textThis dissertation presents a robust numerical method for the class of coupled systems comprised of multiple interacting partial differential equations (PDE). Particular emphasis is placed on incompressible Navier-Stokes equations that are coupled with a hyperbolic scalar PDE. The method is derived based on the variational multiscale (VMS) framework. Specifically, two classes of coupled systems are considered: free-surface flows with a sharp interface marker and stratified turbulence with a smooth temperature field.
The additional nonlinearity introduced by the active scalar field to the nonlinear Navier-Stokes equation system is effectively accounted for by variationally derived stabilization term. In the context of the free-surface flows that are modeled by immiscible two-phase fluids, the dependency of fluid mechanical properties (i.e., density and viscosity) on the implicit interface marker (e.g., signed distance field) results in an interface that traverses through the elements. Applying VMS method to the coupled system results in an interface stabilization term. It is shown that the structure of the stabilization term leads to the so-called Ghost-Penalty method. In the context of internal dissipation in thermodynamics for incompressible flow with Boussinesq approximation, an energy conservation equation is appended that gives rise to a thermomechanically coupled system. The coupled fine-scale sub-problem is locally resolved to yield the closure model. The fine-scale turbulence features are accounted for by the VMS strategy wherein the hierarchical application of VMS results in further enhancement of the mass conservation.
The new method for coupled systems is implemented using hexahedral and tetrahedral elements, and the code is parallelized for the distributed memory system. A range of problems is presented to show the mathematical and computational features of the method.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2021-12-01The student, Lixing Zhu, accepted the attached license on 2019-12-02 at 15:46.The student, Lixing Zhu, submitted this Dissertation for approval on 2019-12-02 at 17:53.This Dissertation was approved for publication on 2019-12-04 at 08:50.DSpace SAF Submission Ingestion Package generated from Vireo submission #14647 on 2020-02-28 at 17:37:08Made available in DSpace on 2020-03-02T22:38:49Z (GMT). No. of bitstreams: 3
ZHU-DISSERTATION-2019.pdf: 11297928 bytes, checksum: a291b57e719c378038dff8817adeab48 (MD5)
LICENSE.txt: 4207 bytes, checksum: c640d4c132604d9ad051b48c4b63224c (MD5)
PROQUEST_LICENSE.txt: 4553 bytes, checksum: 6e7f4ff11c6a43667054218368f258fa (MD5)
Previous issue date: 2019-12-04Embargo set by: Seth Robbins for item 114014
Lift date: 2022-03-02T22:39:04Z
Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemOpen Restriction set for Item 114014 on 2021-01-29T17:08:06Z with date null by [email protected] Restriction set for Item 114014 on 2021-01-29T17:08:11Z with date null by [email protected]
Ruptura prematura de membranas pretérmino en embarazadas con infecciones de la vagina y el útero
No full textPDFLa Organización Mundial de la Salud establece que el 40 % de partos prematuros se
dan por Ruptura Prematura de Membranas (RPM), esta situación es de vital importancia por
las numerosas complicaciones materno-perinatales que presenta y que pueden terminar en un
desenlace fatal, razón que origina la realización de éste estudio. Se efectúa un tipo de estudio:
cuantitativo, observacional, transversal, retrospectivo y analítico. El objetivo es demostrar que
en las pacientes con ruptura prematura de membrana se presentaron infecciones de la vagina y
del útero. Para la metodología del estudio se incluyó a todas las embarazadas que acudieron a
la consulta externa de Centro de Salud Tipo C del Cantón Pedro Carbo en el período enero a
junio del 2016 y de éstas se tomó como universo aquellas que cursaban la vigésima semana de
gestación. Los resultados reportados de las 45 gestantes en sus historias clínicas
independientemente de la edad gestacional, fueron correlacionados; y se analiza como factor
desencadenante a las infecciones de vagina y útero en la presentación de la ruptura prematura
de membranas y desenlaces neonatales. La conclusión es que la RPM que desencadena partos
pretérmino, está directamente relacionada con un inadecuado peso al nacer.The World Health Organization states that 40% of preterm births occur by Premature
Rupture of Membranes (PRM), this situation has vital importance for the many maternal and
perinatal complications posing and can finish in fatal outcomes, reason that causes the
performing this study. Quantitative, observational, cross-sectional, retrospective and analytical
type of study is carried out. The aim is to demonstrate that in patients with premature rupture
of membranes infections of the vagina and uterus were presented. For the methodology of the
study included all pregnant women who attended the outpatient health center type C Canton
Pedro Carbo in the period January to June 2016 and of these was taken as the universe those
who were studying the twentieth week of gestation . The reported results of the 45 pregnant
women in their medical records regardless of gestational age were correlated; and analyzed as
a trigger to infections of the vagina and uterus in presenting premature rupture of membranes
and neonatal outcomes factor. The conclusion is that the PRM that triggers preterm births, is
directly related to inadequate birthweight.Universidad de Guayaquil. Facultad de Ciencias Médicas. Escuela de Graduado
Measurement of the muon charge asymmetry in inclusive pp →W + X production at s=7 TeV and an improved determination of light parton distribution functions
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.Measurements of the muon charge asymmetry in inclusive pp → W + X production at root s= 7 TeV are
presented. The data sample corresponds to an integrated luminosity of 4.7 fb−1 recorded with the CMS
detector at the LHC. With a sample of more than 20 million W → μν events, the statistical precision is
greatly improved in comparison to previous measurements. These new results provide additional
constraints on the parton distribution functions of the proton in the range of the Bjorken scaling variable
x from 10−3 to 10−1. These measurements and the recent CMS measurement of associated W þ charm
production are used together with the cross sections for inclusive deep inelastic e p scattering at HERA in
a next-to-leading-order QCD analysis. The determination of the valence quark distributions is improved,
and the strange-quark distribution is probed directly through the leading-order process g þ s → W þ c in
proton-proton collisions at the LHC.the Austrian Federal Ministry of Science and Research and the Austrian Science Fund; the Belgian Fonds de la Recherche Scientifique, and Fonds voor Wetenschappelijk Onderzoek; the Brazilian Funding Agencies (CNPq, CAPES, FAPERJ, and FAPESP); the Bulgarian Ministry of Education and Science; CERN; the Chinese Academy of Sciences, Ministry of Science and Technology, and National Natural Science Foundation of China; the Colombian Funding Agency (COLCIENCIAS); the Croatian Ministry of Science, Education and Sport, and the Croatian Science Foundation; the Research Promotion Foundation, Cyprus; the Ministry of Education and Research, Recurrent financing contract SF0690030s09 and European Regional Development Fund, Estonia; the Academy of Finland, Finnish Ministry of Education and Culture, and Helsinki Institute of Physics; the Institut National de Physique Nucléaire et de Physique des Particules/CNRS, and Commissariat à l’Énergie Atomique et aux Énergies Alternatives/CEA, France; the Bundesministerium für Bildung und Forschung, Deutsche Forschungsgemeinschaft, and Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany; the General Secretariat for Research and Technology, Greece; the National Scientific Research Foundation, and National Innovation Office, Hungary; the Department of Atomic Energy and the Department of Science and Technology, India; the Institute for Studies in Theoretical Physics and Mathematics, Iran; the Science Foundation, Ireland; the Istituto Nazionale di Fisica Nucleare, Italy; the Korean Ministry of Education, Science and Technology and the World Class University program of NRF, Republic of Korea; the Lithuanian Academy of Sciences; the Mexican Funding Agencies (CINVESTAV, CONACYT, SEP, and UASLP-FAI); the Ministry of Business, Innovation and Employment, New Zealand; the Pakistan Atomic Energy Commission; the Ministry of Science and Higher Education and the National Science Centre, Poland; the Fundação para a Ciência e a Tecnologia, Portugal; JINR, Dubna; the Ministry of Education and Science of the Russian Federation, the Federal Agency of Atomic Energy of the Russian Federation, Russian Academy of Sciences, and the Russian Foundation for Basic Research; the Ministry of Education, Science and Technological Development of Serbia; the Secretaría de Estado de Investigación, Desarrollo e Innovación and Programa Consolider-Ingenio 2010, Spain; the Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER); the National Science Council, Taipei; the Thailand Center of Excellence in Physics, the Institute for the Promotion of Teaching Science and Technology of Thailand, Special Task Force for Activating Research and the National Science and Technology Development Agency of Thailand; the Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authority; the Science and Technology Facilities Council, UK; the U.S. Department of Energy, and the U.S. National Science Foundation. Individuals have received support from the Marie-Curie programme and the European Research Council and EPLANET (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Ministry of Education, Youth and Sports (MEYS) of Czech Republic; the Council of Science and Industrial Research, India; the Compagnia di San Paolo (Torino); the HOMING PLUS programme of Foundation for Polish Science, cofinanced by EU, Regional Development Fund; and the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF
Transient voltage distribution along LV motor windings fed with PWM converters. Insulation ageing analysis
No full textVariational multiscale method for coupled systems: free-surface flows and stratified turbulence
No full textThis dissertation presents a robust numerical method for the class of coupled systems comprised of multiple interacting partial differential equations (PDE). Particular emphasis is placed on incompressible Navier-Stokes equations that are coupled with a hyperbolic scalar PDE. The method is derived based on the variational multiscale (VMS) framework. Specifically, two classes of coupled systems are considered: free-surface flows with a sharp interface marker and stratified turbulence with a smooth temperature field.
The additional nonlinearity introduced by the active scalar field to the nonlinear Navier-Stokes equation system is effectively accounted for by variationally derived stabilization term. In the context of the free-surface flows that are modeled by immiscible two-phase fluids, the dependency of fluid mechanical properties (i.e., density and viscosity) on the implicit interface marker (e.g., signed distance field) results in an interface that traverses through the elements. Applying VMS method to the coupled system results in an interface stabilization term. It is shown that the structure of the stabilization term leads to the so-called Ghost-Penalty method. In the context of internal dissipation in thermodynamics for incompressible flow with Boussinesq approximation, an energy conservation equation is appended that gives rise to a thermomechanically coupled system. The coupled fine-scale sub-problem is locally resolved to yield the closure model. The fine-scale turbulence features are accounted for by the VMS strategy wherein the hierarchical application of VMS results in further enhancement of the mass conservation.
The new method for coupled systems is implemented using hexahedral and tetrahedral elements, and the code is parallelized for the distributed memory system. A range of problems is presented to show the mathematical and computational features of the method.LimitedAuthor requested closed access (OA after 2yrs) in Vireo ETD syste
Measurement of associated W+ charm production in pp collisions at √s=7 TeV
No full textOpen Access, Copyright CERN, for the benefit of the CMS Collaboration.Measurements are presented of the associated production of a W boson and a charm-quark jet (W + c) in pp collisions at a center-of-mass energy of 7 TeV. The analysis is conducted with a data sample corresponding to a total integrated luminosity of 5 fb−1, collected by the CMS detector at the LHC. W boson candidates are identified by their decay into a charged lepton (muon or electron) and a neutrino. The W + c measurements are performed for charm-quark jets in the kinematic region p jet T > 25 GeV, |ηjet| 25 GeV) and σ(pp → W + c + X)× B (W → ℓν) = 84.1 ± 2.0 (stat.) ± 4.9 (syst.) pb ( p ℓ T > 35 GeV), and the cross section ratios σ(pp → W+ + c ¯ + X)/σ(pp → W− + c + X) = 0.954 ± 0.025 (stat.) ± 0.004 (syst.) ( p ℓ T > 25 GeV) and σ(pp → W+ + c ¯ + X)/σ(pp → W− + c + X) = 0.938 ± 0.019 (stat.) ± 0.006 (syst.) ( p ℓ T > 35 GeV). Cross sections and cross section ratios are also measured differentially with respect to the absolute value of the pseudorapidity of the lepton from the W-boson decay. These are the first measurements from the LHC directly sensitive to the strange quark and antiquark content of the proton. Results are compared with theoretical predictions and are consistent with the predictions based on global fits of parton distribution functions
- …
