Naturally graded Zinbiel algebras with nilindex n - 3

We present the classification of a subclass of n-dimensional naturally graded Zinbiel algebras. This subclass has the nilindex n − 3 and the characteristic sequence (n − 3, 2, 1). In fact, this result completes the classification of naturally graded Zinbiel algebras of nilindex n − 3

Leibniz Algebras Whose Semisimple Part is Related to sl2

In this paper we identify the structure of complex finite-dimensional Leibniz algebras with associated Lie algebras sl1 2⊕sl2 2⊕· · ·⊕sls 2⊕R, where R is a solvable radical. The classifications of such Leibniz algebras in the cases dimR = 2, 3 and dimI 6= 3 have been obtained. Moreover, we classify Leibniz algebras with L/I ∼= sl1 2⊕sl2 2 and some conditions on ideal I = id < [x, x] | x ∈ L

p-Filiform Zinbiel algebras

The paper deals with the classification of a subclass of finite-dimensional Zinbiel algebras: the naturally graded p-filiform Zinbiel algebras. A Zinbiel algebra is the dual to Leibniz algebra in Koszul sense. We prove that there exists, up to isomorphism, only one family of naturally graded p-filiform Zinbiel algebras under hypothesis n − p 4

Cuadriceplastia de Judet : una alternativa quirúrgica para las rigideces graves en extensión de la rodilla

Introducción. La contractura en extensión de la rodilla es una complicación de las fracturas femorales con importante afectación de partes blandas. La cuadriceplastia de Judet es una alternativa quirúrgica para aumentar la movilidad. Material y métodos. Presentamos el caso de un paciente con rigidez grave de rodilla en extensión tras una fractura abierta bifocal de fémur estabilizada mediante osteosíntesis que se complicó con una infección y retardo de consolidación que requirió varias cirugías para su estabilización. Se realizó una cuadriceplastia de Judet seguida de una rehabilitación intensiva para conseguir aumentar la flexión de la rodilla. Resultados. En el postoperatorio inmediato conseguía una flexoextensión de 0-100º que se redujo a 95º a los 3 meses y se mantuvo a los 6 meses postoperatorios, con una fuerza muscular de 4 sobre 5 en cuádriceps y psoas. Conclusion. La cuadriceplastia de Judet es una técnica efectiva que permite recuperar la movilidad en caso de rigideces graves en extensión.Introduction. Extension contracture of the knee is a complication of femoral fractures with significant soft tissue injury. The Judet quadricepsplasty is a surgical alternative to increase knee range of motion. Material and methods. We report the case of a patient with severe stiffness of knee following an open bifocal femoral fracture stabilized by osteosynthesis that was complicated by an infection and delayed healing that required several surgeries for stabilization. Judet quadricepsplasty was performed followed by intensive rehabilitation for increasing knee flexion. Results. In the postoperative care flexion and extension of 0-100º was achieved, and reduced to 95º after 3 months and remained the same at 6 months postoperatively, with a muscular strength of 4 out of 5 in quadriceps and psoas. Conclusion. The Judet quadricepsplasty is an effective technique to regain mobility in case of severe extension stiffnes

Geochemical and geochronological constraints on the geologic evolution of the western Sonobari Complex, northwestern Mexico

In the southern Sierra Sonobari, NW Mexico, U-Pb and 40Ar/39Ar geochronology studies allowed to define the provenance and maximum depositional age of the Francisco Gneiss basement of the Sonobari terrane, and to establish the age of some magmatic events in that area. The youngest zircon cluster in paragneisses of the Francisco Gneiss indicates a maximum depositional age of 509 ± 29Ma. The main peaks of the relative probability plot yield ages of 1690 and 1404Ma with minor peaks at 1156, 921, and 517Ma. Major peaks suggest that the main source of sediments was the Paleo- and Mesoproterozoic crust of Laurentia. Orthogneiss from the Francisco Gneiss yields a U-Pb zircon upper intercept age of 248 ± 28Ma, which is interpreted as the crystallization age. Crosscutting dykes of metabasite yield an 40Ar/39Ar age of 67 ± 5Ma, which is interpreted as indicating cooling after either a latest Early Cretaceous orogenic event or Late Cretaceous contact metamorphism. Granodiorite intruding the Francisco Gneiss yields a U-Pb age of 64 ± 1Ma, which is interpreted as a magmatic age. The hornblende-plagioclase Macochin Gabbro yields 40Ar/39Ar isochron ages of 54 ± 10Ma and 47 ± 5Ma, which are interpreted as cooling ages after the gabbro intrusion. Geochemical data indicate that the mafic rocks of the Francisco Gneiss correspond to subalkaline basalts of tholeiitic affinity with concentrations of high field strength elements similar to oceanic basalts, suggesting an asthenospheric upper mantle source. However, according to the variation in Th/Yb and U/Yb, the amphibolites display a significant influence of the upper continental crust. The Macochin Gabbro also has a geochemical signature characteristic of subalkaline basalt with tholeiitic affinity, and high field strength elements similar to oceanic basalts. Tectonic discrimination diagrams and elemental distribution suggest that the mafic rocks of both the Francisco Gneiss and Macochin Gabbro were emplaced during rifting in a back-arc setting

Secondary use of data extracted from a clinical information system to assess the adherence of tidal volume and its impact on outcomes.

Objectives To extract data from clinical information systems to automatically calculate high-resolution quality indicators to assess adherence to recommendations for low tidal volume. Design We devised two indicators: the percentage of time under mechanical ventilation with excessive tidal volume (>8 mL/kg predicted body weight) and the percentage of patients who received appropriate tidal volume (≤8 mL/kg PBW) at least 80% of the time under mechanical ventilation. We developed an algorithm to automatically calculate these indicators from clinical information system data and analyzed associations between them and patients’ characteristics and outcomes. Settings This study has been carried out in our 30-bed polyvalent intensive care unit between January 1, 2014 and November 30, 2019. Patients All patients admitted to intensive care unit ventilated >72 h were included. Intervention Use data collected automatically from the clinical information systems to assess adherence to tidal volume recommendations and its outcomes. Main variables of interest Mechanical ventilation days, ICU length of stay and mortality. Results Of all admitted patients, 340 met the inclusion criteria. Median percentage of time under mechanical ventilation with excessive tidal volume was 70% (23%–93%); only 22.3% of patients received appropriate tidal volume at least 80% of the time. Receiving appropriate tidal volume was associated with shorter duration of mechanical ventilation and intensive care unit stay. Patients receiving appropriate tidal volume were mostly male, younger, taller, and less severely ill. Adjusted intensive care unit mortality did not differ according to percentage of time with excessive tidal volume or to receiving appropriate tidal volume at least 80% of the time. Conclusions Automatic calculation of process-of-care indicators from clinical information systems high-resolution data can provide an accurate and continuous measure of adherence to recommendations. Adherence to tidal volume recommendations was associated with shorter duration of mechanical ventilation and intensive care unit stay.pre-print1126 K