Consultoría integral en una empresa comercializadora de ferretería para lograr estructurar y formalizar los procesos de la empresa para una mejor gestión y desarrollo, en el municipio de Tlaquepaque, Jalisco

Durante el periodo primavera 2022 el equipo de consultores participa en una empresa dedicada a compraventa de insumos ferreteros fundada hace 25 años, con la experiencia adquirida por sus fundadores previamente al trabajar en un negocio familiar del mismo giro. La gestión de la empresa se realiza de forma empírica y poco formal, ofrecen a sus clientes las marcas más importantes del mercado, siendo distribuidores directos de estas, cumpliendo con calidad, precio y servicio. Su mercado está identificado en: Industrias, Ferreterías al mayoreo y Ferreterías al menudeo a quienes venden 95% a crédito y 5% de contado en ZMG y varios estados de la república. Cuentan con un equipo de ventas que realiza esfuerzos importantes para generar ingresos, pero la situación de desabasto de insumos de sus proveedores a raíz del COVID impide que los pedidos a sus clientes se surtan en tiempo y forma. Así mismo esto genera un problema en el almacén respecto a las entradas y salidas, contando con un espacio insuficiente y productos obsoletos o de lento movimiento. Las instalaciones físicas de la organización son limitadas. Su situación financiera es un área de oportunidad, ya que es conocida de forma parcial. En esta etapa de la consultoría se procedió a realizar el Diagnóstico y la Propuesta de mejora para resolver las circunstancias identificadas en esta parte del proceso.ITESO, A.C

La artroscopia de rodilla: experiencia de 474 casos

El objetivo de este trabajo es dar a conocer los resultados de un estudio de 474 artroscopias realizadas en nuestro Servicio de Cirugía Ortopédica y Traumatología desde el mes de enero 1988 hasta agosto 1992. La edad media de los pacientes fue de 32 años, con una mayor incidencia en el sexo masculino (73%). La patología más frecuente correspondió a la meniscopatía interna (48%). Tuvimos una estancia media hospitalaria de 3 días, apreciándose una relación inversa entre ésta y la edad del paciente. La complicación más habitual en el post-operatorio fue el derrame sinovial (3%) siendo necesaria al artrocentesis para su desaparición en el plazo de 1-2 semanas.This work was aimed at presenting the results of 474 diagnostic artroscopies of the knee performed in our Department of orthopaedic surgery from January 1988 to August 1992. The mean age of the patients was 32 years. There was a greater incidence in males (73%). The most frequent pathologic finding was medial meniscopathy (48%). The mean period of hospitalization was 3 days. There was an opposite relationship betwen the hospitalization period and the age of the patient. As complications, synovial effusion was found in 3% of cases, synovial fluid evacuation been necessary

INTRABEAM: precision hypo-fractionated radiotherapy with a systemic immune response

Purpose or Objective: To evaluate the changes in immune-cell phenotype in peripheral blood following intraoperative radiotherapy (IORT) in breast cancer patients

Consultoría integral en una empresa comercializadora de ferretería para lograr estructurar y formalizar los procesos de la empresa para una mejor gestión y desarrollo, en el municipio de Tlaquepaque, Jalisco

Continuación del proyecto iniciado en el período de primavera 2022, el equipo de consultores participa en una empresa dedicada a compraventa de insumos ferreteros fundada hace 25 años, con la experiencia adquirida por sus fundadores previamente al trabajar en un negocio familiar del mismo giro. La gestión de la empresa se realiza de forma empírica y poco formal, ofrecen a sus clientes las marcas más importantes del mercado, siendo distribuidores directos de estas, cumpliendo con calidad, precio y servicio. Su mercado está identificado en: Industrias, Ferreterías al mayoreo y Ferreterías al menudeo a quienes venden 95% a crédito y 5% de contado en ZMG y varios estados de la república. Cuentan con un equipo de ventas que realiza esfuerzos importantes para generar ingresos, pero la situación de desabasto de insumos de sus proveedores a raíz del COVID impide que los pedidos a sus clientes se surtan en tiempo y forma. Así mismo esto genera un problema en el almacén respecto a las entradas y salidas, contando con un espacio insuficiente y productos obsoletos o de lento movimiento. Las instalaciones físicas de la organización son limitadas.Su situación financiera es un área de oportunidad, ya que es conocida de forma parcial. Durante el período de verano 2022 se brinda seguimiento a las propuestas realizadas en el periodo anterior y se procede a revisar las situaciones y problemas que presenta la organización de acuerdo al avance actualizando el diagnóstico por medio de un Roadmap, revisando su modelo de negocios a través de CANVAS, realizando nuevas propuestas para mejorar la empresa en el contexto y situación actual.ITESO, A.C

Eliminating Error in the Chemical Abundance Scale for Extragalactic HII Regions

In an attempt to remove the systematic errors which have plagued the calibration of the HII region abundance sequence, we have theoretically modeled the extragalactic HII region sequence. We then used the theoretical spectra so generated in a double blind experiment to recover the chemical abundances using both the classical electron temperature + ionization correction factor technique, and the technique which depends on the use of strong emission lines (SELs) in the nebular spectrum to estimate the abundance of oxygen. We find a number of systematic trends, and we provide correction formulae which should remove systematic errors in the electron temperature + ionization correction factor technique. We also provide a critical evaluation of the various semi-empirical SEL techniques. Finally, we offer a scheme which should help to eliminate systematic errors in the SEL-derived chemical abundance scale for extragalactic HII regions.Comment: 24 pages, 9 Tables, 13 figures, accepted for publication in MNRAS. Updated considering minor changes during the final edition process and some few missing reference

An extreme [OIII] emitter at z=3.2z=3.2: a low metallicity Lyman continuum source

[Abridged] We investigate the physical properties of a Lyman continuum emitter candidate at $z=3.212$ with photometric coverage from $U$ to MIPS 24$\mu$m band and VIMOS/VLT and MOSFIRE/Keck spectroscopy. Investigation of the UV spectrum confirms a direct spectroscopic detection of the Lyman continuum emission with $S/N>5$. Non-zero Ly$\alpha$ flux at the systemic redshift and high Lyman-$\alpha$ escape fraction suggest a low HI column density. The weak C and Si low-ionization absorption lines are also consistent with a low covering fraction along the line of sight. The [OIII]$\lambda\lambda4959,5007+\mathrm{H}\beta$ equivalent width is one of the largest reported for a galaxy at $z>3$ ($\mathrm{EW}([\mathrm{OIII}]\lambda\lambda4959,5007+\mathrm{H}\beta) \simeq 1600\AA$, rest-frame) and the NIR spectrum shows that this is mainly due to an extremely strong [OIII] emission. The large observed [OIII]/[OII] ratio ($>10$) and high ionization parameter are consistent with prediction from photoionization models in case of a density-bounded nebula scenario. Furthermore, the $\mathrm{EW}([\mathrm{OIII}]\lambda\lambda4959,5007+\mathrm{H}\beta)$ is comparable to recent measurements reported at $z\sim7-9$, in the reionization epoch. We also investigate the possibility of an AGN contribution to explain the ionizing emission but most of the AGN identification diagnostics suggest that stellar emission dominates instead. This source is currently the first high-$z$ example of a Lyman continuum emitter exhibiting indirect and direct evidences of a Lyman continuum leakage and having physical properties consistent with theoretical expectation from Lyman continuum emission from a density-bounded nebula.Comment: 14 pages, 11 figures, accepted for publication in A&A. Minor modifications, Figure 2 updated, Figure 9 adde

Energy levels distribution in supersaturated silicon with titanium for photovoltaic applications

In the attempt to form an intermediate band in the bandgap of silicon substrates to give it the capability to absorb infrared radiation, we studied the deep levels in supersaturated silicon with titanium. The technique used to characterize the energy levels was the thermal admittance spectroscopy. Our experimental results showed that in samples with titanium concentration just under Mott limit there was a relationship among the activation energy value and the capture cross section value. This relationship obeys to the well known Meyer-Neldel rule, which typically appears in processes involving multiple excitations, like carrier capture/emission in deep levels, and it is generally observed in disordered systems. The obtained characteristic Meyer-Neldel parameters were Tmn = 176 K and kTmn = 15 meV. The energy value could be associated to the typical energy of the phonons in the substrate. The almost perfect adjust of all experimental data to the same straight line provides further evidence of the validity of the Meyer Neldel rule, and may contribute to obtain a deeper insight on the ultimate meaning of this phenomenon. (C) 2015 AIP Publishing LLC

Linking Seasonal Reduction of Microbial Diversity to Increase in Winter Temperature of Waters of a Chilean Patagonia Fjord

Since microorganisms play a major role in the biogeochemistry of the ocean, understanding structure and dynamics of natural microbial communities is crucial in assessing the impact of environmental changes on marine ecosystems. In order to identify key environmental drivers of microbial community structure in Chilean Patagonian fjords, we analyzed composition of the prokaryotic community over an annual cycle at a single sampling site in Puyuhuapi Fjord. Distinctive communities represented mainly by Actinomycetales, Rhodobacteraceae, Cryomorphaceae, and Flavobacteriaceae were associated with Estuarine Fresh Waters, whereas Cenarchaeaceae and Oceanospirillales were representative of Modified Sub Antarctic Waters present in the fjord. Salinity and oxygen were first-order factors explaining segregation of microbial communities in these contrasting water masses. Positive correlations of members of Flavobacteriaceae, Alteromonadales, and Verrucomicrobiales with diatoms in subsurface waters and of Flavobacteriales (Cryomorphaceae and Flavobacteriaceae), Rhodobacteraceae, and Pelagibacteraceae with dinoflagellates in surface waters suggest that phytoplankton composition could define specific niches for microorganisms in Puyuhuapi fjord waters. A dramatic reduction of richness and individual abundances within Flavobacteriaceae, Rhodobacteraceae, and Cenarchaeaceae families was principally explained by seasonal increase of surface water temperature, with major reduction associated with changes in temperature during winter conditions. Taxa that are sensitive to increased temperature are key components of organic matter and element cycling, and we therefore suggest that potential decrease in diversity associated with rising of surface water temperature could impact current biogeochemical status of Patagonian fjord ecosystems

Infrastructure and equipment for radiation oncology in the spanish national health system: analysis of external beam radiotherapy 2015-2020.

PURPOSE Planning for radiation oncology requires reliable estimates of both demand for radiotherapy and availability of technological resources. This study compares radiotherapy resources in the 17 regions of the decentralised Spanish National Health System (SNHS). MATERIAL AND METHODS The Sociedad Española de Oncología Radioterápica (SEOR) performed a cross-sectional survey of all Spanish radiation oncology services (ROS) in 2015. We collected data on SNHS radiotherapy units, recording the year of installation, specific features of linear accelerators (LINACs) and other treatment units, and radiotherapeutic techniques implemented by region. Any machine over 10 years old or lacking a multileaf collimator or portal imaging system was considered obsolete. We performed a k-means clustering analysis using the Hartigan-Wong method to test associations between the gross domestic regional product (GDRP), the number of LINACs per million population and the percentage of LINACs over 10 years old. RESULTS The SNHS controls 72 (61%) of the 118 Spanish ROS and has 180 LINACs, or 72.5% of the total public and private resources. The mean rate of LINACs per million population is 3.9 for public ROS, and 42% (n=75) of the public accelerators were obsolete in 2015: 61 due to age and 14 due to technological capability. There was considerable regional variation in terms of the number and technological capacity of radiotherapy units; correlation between GRDP and resource availability was moderate. CONCLUSION Despite improvements, new investments are still needed to replace obsolete units and increase access to modern radiotherapy. Regular analysis of ROS in each Spanish region is the only strategy for monitoring progress in radiotherapy capacity.pre-print1471 K