Noisy Tensor Completion for Tensors with a Sparse Canonical Polyadic Factor

In this paper we study the problem of noisy tensor completion for tensors that admit a canonical polyadic or CANDECOMP/PARAFAC (CP) decomposition with one of the factors being sparse. We present general theoretical error bounds for an estimate obtained by using a complexity-regularized maximum likelihood principle and then instantiate these bounds for the case of additive white Gaussian noise. We also provide an ADMM-type algorithm for solving the complexity-regularized maximum likelihood problem and validate the theoretical finding via experiments on synthetic data set

An ROV operated undersea hydraulic hose repair coupling

A hydraulic hose repair system is presented that was developed for use at the Deepwater Horizon accident site. The system can be deployed with a single ROV with two controllable arms. One arm holds the device and the other arm pushes a severed hose into the device. Hydraulic pressure is applied from the ROV to the device and a hydraulic coupling within the device is crimped into one end of the hose. The second hose end to be spliced to the first is pushed into the other side of the device and the second half of the coupling is crimped onto the second hose end. The device itself is left in place as part of the splice. The design, on-shore testing, and fabrication of multiple devices ready to deploy at the accident site took on the order of a week to complete. They stand ready to be deployed in the case of another deep-water accident. Keywords: Deepwater Horizon; Hydraulic; Hose; Repair; Couplin

Organellar carbon metabolism is co-ordinated with distinct developmental phases of secondary xylem

Subcellular compartmentation of plant biosynthetic pathways in the mitochondria and plastids requires coordinated regulation of nuclear encoded genes, and the role of these genes has been largely ignored by wood researchers. In this study, we constructed a targeted systems genetics coexpression network of xylogenesis in Eucalyptus using plastid and mitochondrial carbon metabolic genes and compared the resulting clusters to the aspen xylem developmental series. The constructed network clusters reveal the organization of transcriptional modules regulating subcellular metabolic functions in plastids and mitochondria. Overlapping genes between the plastid and mitochondrial networks implicate the common transcriptional regulation of carbon metabolism during xylem secondary growth. We show that the central processes of organellar carbon metabolism are distinctly coordinated across the developmental stages of wood formation and are specifically associated with primary growth and secondary cell wall deposition. We also demonstrate that, during xylogenesis, plastid-targeted carbon metabolism is partially regulated by the central clock for carbon allocation towards primary and secondary xylem growth, and we discuss these networks in the context of previously established associations with wood-related complex traits. This study provides a new resolution into the integration and transcriptional regulation of plastid- and mitochondrial-localized carbon metabolism during xylogenesis

Aplicacion, Registro y Pagos de los Tributos en las Empresas ENLASA de la ciudad Matagalpa en el Periodo 2016

El presente Seminario de Graduación aborda el tema Tributos en las Empresas del Departamento de Matagalpa en el periodo 2016, con el objetivo de evaluar la aplicación, registro y pago de los Tributos en las empresas de la ciudad de Matagalpa en el periodo 2016. Los Tributos son de gran importancia para el desarrollo de cada país, permitiendo a los gobiernos el desarrollo de programas sociales para mejorar la calidad de vida de sus habitantes, a través del pago a tiempo de cada ciudadano de los Tributos ante el Estado. Al culminar nuestro trabajo investigativo llegamos a las siguientes conclusiones: Los Tributos aplicados en la empresa ENLASA son los siguientes: Impuesto sobre la Renta (IR), Impuesto Municipal sobre Ingresos (IMI), Impuesto de Matricula, Tasas por Servicios, las cuotas del INSS Laboral y Patronal e INATEC, el registro de los Tributos se realiza de la siguiente manera: Impuesto sobre la Renta (IR) como un Pasivo y su anticipo siendo un Activo, el Impuesto Municipal sobre Ingresos (IMI) y el Impuesto de Matricula representan Gastos de Ventas, las Tasas por Servicios como un Gasto de Administración, las Cuotas del INSS Laboral y Patronal e INATEC constituye un Gasto de Administración y se provisiona como un Pasivo, por lo anteriormente mencionado se valoró que la Empresa ENLASA aplica correctamente los Tributos, no demostrando dificultad alguna en su procedimientos de registro y pago de los mismos, cumpliendo con las Leyes Tributarias para obtener solvencia fiscal ante el Estado Palabras claves: Tributos, Aplicación, Registro, Pago, Procedimiento

Are Online Job Postings Informative to Investors?

Human capital is a key factor in value creation in the modern corporation. Yet the disclosure of investment in human capital is scant. We propose that a company’s online job postings are disclosures made outside of the investor-relations channel that contain forward-looking information that could be informative to investors about future growth. We find that changes in the number of job postings are positively associated with changes in future performance and that this relation is stronger when postings likely represent growth rather than replacement. Consistent with job postings providing new information to the market, investors react positively to changes in the number of job postings. The market reaction to postings is stronger when firms are likely to be hiring for growth rather than replacement and for firms with low labor intensity (and therefore high marginal productivity of labor). This paper was accepted by Brian Bushee, accounting

Identificación de apoyo financiero y recursos de financiación para la investigación en las Instituciones de Educación Superior (IES) en Colombia

La posición privilegiada de las IES en Colombia amplía la posibilidad de que estas se conviertan efectivamente en estamentos receptores de apoyo financieros y recursos de financiación por encima de los factores que la identifican. El poder definir las áreas y componentes institucionales en los cuales pueda establecerse dicha fuente de recursos es imperante para la sostenibilidad de las IES. El análisis sectorial de la educación superior en materia de financiamiento debe ser considerado como área igualmente sustantiva a la gestión de estas. Las IES deben analizar el alcance que tienen en el entorno; de paso, la revisión de fuentes estatales e institucionales a saber, y por último, las estrategias a considerar para hacer de las fuentes de apoyo y recursos financieros un flujo de ingresos óptimo