400 research outputs found
Implantación de un sistema de aprovisionamiento en SAP R/3 para una empresa de cuidados domiciliarios
Este Proyecto de Ingeniería se centra en la Industria de los gases industriales, más concretamente, en el sector de los llamados gases medicinales, tales como el oxígeno; en el cual la compañía Air Liquide es líder del sector. La actividad principal de la empresa VitalAir,-filial de Air Liquide- es el cuidado domiciliario de pacientes crónicos que necesitan de equipos y productos que VitalAire les suministra para una mejor calidad de vida, proporcionando “la Zona Vital” que su denominación sugiere.
En este contexto y dado el carácter multinacional de la empresa matriz, se impone una política de mejora continua que garantice la posición dominante en el sector. Obviamente esto incluye a todas sus empresas filiales a lo largo del mundo.
VitalAire, como filial española del sector medicinal, se encuentra inmersa en este escenario de modernización continua. Es por ello por lo que surge la necesidad de revisar sus procesos a todos los niveles. Entre estos procesos se encuentra la gestión de sus almacenes, dotando de nuevos métodos para el reaprovisionamiento de los mismos.
En el panorama internacional existen distintas tendencias a la hora de planificar el reaprovisionamiento. La solución empleada en este Proyecto ha sido la incluida en el módulo de gestión de materiales MM de SAP R/3. Se ha elegido como software de base SAP, siglas de Sistemas, Aplicaciones y Productos, ya que estaba implantado con anterioridad en el grupo Air Liquide.
En este Proyecto Fin de Carrera, se estudia, de principio a fin, el proceso de implementación del sistema de gestión de materiales, que mediante métodos ingenieriles consigue realizar procedimientos habituales con una mayor eficiencia como se pretende demostrar a lo largo de este Proyecto.This Engineering Project is based on the industrial gas industry, focus on medical gases, such us oxygen; sector which is lead by Air Liquide. The main activity of the enterprise VitalAire,- a subsidiary of Air Liquide- is the home care of chronic patients in need of equipment and supplies of products supplied by VitalAire to be able to provide a better quality of life, giving “ the Vital Area” that the name suggests.
In this context and given the multinational nature of the parent company, a policy of continuous improvement is required in order to ensure the dominant position in the sector. Obviously, including all its subsidiaries throughout the world.
VitalAire, as a Spanish subsidiary in the medical sector is submerged in this scenario of continuous modernization. In principle, this is the reason why every process need to be reviewed. Among these processes the warehouse management is studied, providing new methods for an automatic replenishment.
On this international scene, several trends exist regarding requirement planning. The solution adopted in this project is included on SAP R/3 material management module MM. The software chosen is SAP, acronym for Systems, Applications and Products, which was already settled on the Air Liquide group.
In this Thesis, we study, from beginning to end, the implementation process of the material management system, which using engineering methods achieve standard procedures in a more efficiently way, which is the aim of this ProjectIngeniería Industria
Elite controllers long-term non progressors present improved survival and slower disease progression
Different phenotypes exhibiting no evidences of disease progression have been described in ART-naïve HIV-1 positive individuals. Long-term non progressors (LTNP) and elite controllers (EC) are low frequent examples of immunological and virological control in HIV-1 positive subjects, respectively. The combination of both phenotypes is even less frequent and studied despite being considered as models of HIV-1 functional cure. A multicenter, prospective study in retrospect including clinical and epidemiological data collected from 313 LTNP of 21 Spanish hospitals was carried out. LTNPs maintaining CD4+ T cell counts over 500 cells/µl and viral loads (VL) under 10,000 copies/mL for at least 10 years in the absence of antiretroviral therapy were followed for a median of 20.8 years (IQR = 15.6-25.5). A 52.1% were considered EC (undetectable VL) and LTNP (EC-LTNP) and a total of 171 (54.8%) and 42 (13.5%) out of the 313 participants maintained LTNP status for at least 20 and 30 years, respectively. EC-LTNP showed lower CD4+ T cell count loss (9.9 vs 24.2 cells/µl/year), higher CD4/CD8 ratio (0.01 vs - 0.09 in ratio), and lesser VL increase (no increase vs 197.2 copies/mL/year) compared with LTNPs with detectable VL (vLTNP). Survival probabilities for all-cause mortality at 30 years from HIV + diagnosis were 0.90 for EC-LTNP and 0.70 for vLTNP (p = 2.0 × 10-3), and EC-LTNP phenotype was the only factor associated with better survival in multivariate analyses (HR = 0.28; 95% CI 0.10-0.79). The probability to preserve LTNP status at 30 years was 0.51 for EC-LTNP and 0.18 for vLTNP (p < 2.2 × 10-16). Risk factors associated to the loss of LTNP status was: higher age at diagnosis and the increase of VL, whereas the increase of CD4+ T cell counts and CD4/CD8 ratio, the initial EC-LTNP phenotype and HCV coinfection were protective factors. EC-LTNP phenotype was associated with improved survival and slower disease progression compared with other phenotypes of LTNP. EC-LTNP individuals represent one of the most favorable phenotypes of immune activation against HIV-1 found in nature and, therefore, are strong candidates to be considered a model of functional cure of HIV-1 infection.This study has been conducted within the Infectious Diseases Networking Biomedical Research Centre (CIBER INFEC) and the Spanish AIDS Research Network (RIS), the latter being funded by the Instituto de Salud Carlos III (Project RD16CIII/0002/0001, Plan Estatal de I+D+I 2013–2016) and co-fnanced by the European Regional Development Fund (ERDF) “A way to build Europe”. Te study was funded by the Instituto de Salud Carlos III (Project PI19CIII/00004).S
Seminarios "Mil Historias"
Documentación relativa a los seminarios "Mil Historias", vinculados al P.I.D. Las Fuentes de la Historia: un binomio en la construcción de aprendizaje
Transcriptome Sequencing of Peripheral Blood Mononuclear Cells from Elite Controller-Long Term Non Progressors
The elite controller (EC)-long term non-progressor (LTNP) phenotype represent a spontaneous and advantageous model of HIV-1 control in the absence of therapy. The transcriptome of peripheral blood mononuclear cells (PBMCs) collected from EC-LTNPs was sequenced by RNA-Seq and compared with the transcriptomes from other phenotypes of disease progression. The transcript abundance estimation combined with the use of supervised classification algorithms allowed the selection of 20 genes and pseudogenes, mainly involved in interferon-regulated antiviral mechanisms and cell machineries of transcription and translation, as the best predictive genes of disease progression. Differential expression analyses between phenotypes showed an altered calcium homeostasis in EC-LTNPs evidenced by the upregulation of several membrane receptors implicated in calcium-signaling cascades and intracellular calcium-mobilization and by the overrepresentation of NFAT1/Elk-1-binding sites in the promoters of the genes differentially expressed in these individuals. A coordinated upregulation of host genes associated with HIV-1 reverse transcription and viral transcription was also observed in EC-LTNPs -i.e. p21/CDKN1A, TNF, IER3 and GADD45B. We also found an upregulation of ANKRD54 in EC-LTNPs and viremic LTNPs in comparison with typical progressors and a clear alteration of type-I interferon signaling as a consequence of viremia in typical progressors before and after receiving antiretroviral therapy.We want to particularly acknowledge the patients in this study for their participation and to the HIV BioBank integrated in the Spanish AIDS Research Network and collaborating Centres (http://hivhgmbiobank.com/donor-area/hospitals-and-centres-transferring-samples/?lang = en) for the generous gifts of clinical samples used in this work. The HIV BioBank and the AIDS Immunopathogenesis Unit are integrated in the Spanish AIDS Research Network. The HIV BioBank is partially funded by the RD16/0025/0019 project as part of the Plan Nacional R + D + I and cofinanced by ISCIII- Subdirección General de Evaluación and el Fondo Europeo de Desarrollo Regional (FEDER)”. This work was partially supported by Instituto de Salud Carlos III and co-funded by European Regional Development Fund (ERDF) “A way to build Europe” (projects RD12/0017/0015 and RD16CIII/0002/0001, Plan Estatal de I + D + I 2013–2016), the French Government’s Investissement d’Avenir program, Laboratoire d’Excellence Integrative Biology of Emerging Infectious Diseases (n°ANR-10-LABX-62-IBEID) and the European Union’s Horizon 2020 Research and Innovation Programme under grant agreement No 681137. FDF was supported by the Spanish Government’s Sara Borrell postdoctoral ProgramS
X-ray diffraction, cements and environment, three worlds in one
This keynote lecture will be focused on the strategies for reducing CO2 emissions in the cement production. Concretely, the production of ecocements with optimised formulations that yield reductions in CO2 emissions of up to 25%, when compared to OPC production. Phase assemblage has to be carefully optimised to be competitive and these new ecocements should develop compressive strengths of at least 50 MPa at 28 days of hydration. Optimised compositions of several ecocements will be discussed, but all of them are ye'elimite or calcium sulphoaluminate containing ones: belite-ye'elimite-ferrite (BYF), belite-alite-ye'elimite (BAY) and ye'elimite rich ones (CSA). The clinkering temperature of BYF and BAY has to be established to obtain the targeted phase assemblages. Moreover, the stabilisation of alpha-forms of belite is needed to develop high mechanical strengths at early ages. The benefits of the use of waste materials (such as fly ash or slag) as additions to ecocements are three-fold: lower CO2 emissions due to clinker replacement; valorisation of “useless” products that need a lot of landscape and the consequent efficient consumption of raw materials; and to enhance mechanical properties of the corresponding mortars. The design of appropriate CSA, BYF and BAY mortars, with the final aim of knowing and controlling the hydration mechanisms, will be presented. Particularly, the role of i) type and amount of set regulator (gypsum, anhydrite, etc.), ii) water/cement ratio (w/c); iii) superplasticiser; and iv) pozzolanic additions will be discussed. The role of these parameters in the microstructure and hydraulic behaviour has been investigated through traditional techniques as well as advanced synchrotron characterisation. The formers include laboratory/synchrotron X-ray powder diffraction combined with Rietveld methodology (to obtain phase assemblage), electron microscopy techniques for paste microstructure determination, rheological studies (to control the effect of the different additives, w/c ratio and setting time retarders) and mechanical tests (setting times, compressive strengths and dimensional stability). The latters comprise a group of techniques available at synchrotrons such as: i) high temperature x-ray diffraction for clinkering studies and ii) total scattering data to be analysed by pair distribution function, PDF.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
PhD D. Londono-Zuluaga thanks Colciencias and Enlaza Mundos program PhD grant. Spanish MINECO (BIA2014-57658-C2-2-R, which is co-funded by FEDER, BIA2014-57658-C2-1-R and I3 (IEDI-2016-0079) grants) are acknowledged
DREAM-dependent activation of astrocytes in amyotrophic lateral sclerosis
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease of unknown origin and characterized by a relentless loss of motor neurons that causes a progressive muscle weakness until death. Among the several pathogenic mechanisms that have been related to ALS, a dysregulation of calcium-buffering proteins in motor neurons of the brain and spinal cord can make these neurons more vulnerable to disease progression. Downstream regulatory element antagonist modulator (DREAM) is a neuronal calcium-binding protein that plays multiple roles in the nucleus and cytosol. The main aim of this study was focused on the characterization of DREAM and glial fibrillary acid protein (GFAP) in the brain and spinal cord tissues from transgenic SOD1G93A mice and ALS patients to unravel its potential role under neurodegenerative conditions. The DREAM and GFAP levels in the spinal cord and different brain areas from transgenic SOD1G93A mice and ALS patients were analyzed by Western blot and immunohistochemistry. Our findings suggest that the calcium-dependent excitotoxicity progressively enhanced in the CNS in ALS could modulate the multifunctional nature of DREAM, strengthening its apoptotic way of action in both motor neurons and astrocytes, which could act as an additional factor to increase neuronal damage. The direct crosstalk between astrocytes and motor neurons can become vulnerable under neurodegenerative conditions, and DREAM could act as an additional switch to enhance motor neuron loss. Together, these findings could pave the way to further study the molecular targets of DREAM to find novel therapeutic strategies to fight ALS
Longer intervals between SARS-CoV-2 infection and mRNA-1273 doses improve the neutralization of different variants of concern
The humoral immune response against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern elicited by vaccination was evaluated in COVID-19 recovered individuals (Rec) separated 1-3 months (Rec2m) or 4-12 months (Rec9m) postinfection and compared to the response in naïve participants. Antibody-mediated immune responses were assessed in 66 participants by three commercial immunoassays and a SARS-CoV-2 lentiviral-based pseudovirus neutralization assay. Immunoglobulin (Ig) levels against SARS-CoV-2 spike were lower in naïve participants after two doses than in Rec after a single dose (p < 0.05). After two doses in Rec, levels of total Ig to receptor-binding domain were significantly increased in Rec9m compared to Rec2m (p < 0.001). The neutralizing potency observed in Rec9m was consistently higher than in Rec2m against variants of concern (VOCs) Alpha, Beta, Delta, and BA.1 sublineage of Omicron with 2.2-2.8-fold increases. Increasing the interval between SARS-CoV-2 infection and the vaccination with messenger RNA-based vaccines to more than 3 months generates a more efficient heterologous humoral immune response against VOCs by allowing enough time to mount a strong recall memory B cell response.This work is funded by Instituto de Salud Carlos III, a Spanish public body assigned to the Ministry of Science and Innovation that manages and promotes public clinical research related to Public Health, by Grants PI19CIII/00004 (José Alcamí and Francisco Díez‐Fuertes) and PI21CIII/00025 (Javier García‐Pérez and Mayte Pérez‐Olmeda), COVID‐19 Fund (Grants COV20/00679 (Javier García‐Pérez, Mayte Pérez‐Olmeda, José Alcamí, and Francisco Díez‐Fuertes) and COV20/00072 (Javier García‐Pérez, Mayte Pérez‐Olmeda, Almudena Ramírez‐García, María Castillo de la Osa, Rocio Layunta Acero, Laura Vicente‐Izquierdo, Cristina Avendaño‐Solá, and José Alcamí), and CIBERINFEC, co‐financed by the European Regional Development Fund (FEDER) “A way to make Europe.”S
Ampicillin Plus Ceftriaxone Combined Therapy for Enterococcus faecalis Infective Endocarditis in OPAT
Cardiovascular Infectious Study Group of the Andalusian Society of Infectious Diseases.Ampicillin plus ceftriaxone (AC) is a well-recognized inpatient regimen for Enterococcus faecalis infective endocarditis (IE). In this regimen, ceftriaxone is usually administered 2 g every 2 h (AC12). The administration of AC in outpatient parenteral antibiotic treatment (OPAT) programs is challenging because multiple daily doses are required. AC regimens useful for OPAT programs include once-daily high-dose administration of ceftriaxone (AC24) or AC co-diluted and jointly administered in bolus every 4 h (ACjoined). In this retrospective analysis of prospectively collected cases, we aimed to assess the clinical effectivity and safety of three AC regimens for the treatment of E. faecalis IE. Fifty-nine patients were treated with AC combinations (AC12 n = 32, AC24 n = 17, and ACjoined n = 10). Six relapses occurred in the whole cohort: five (29.4%) treated with AC24 regimen and one (10.0%) with ACjoined. Patients were cured in 30 (93.3%), 16 (94.1%), and eight (80.0%) cases in the AC12, AC24 and ACjoined groups, respectively. Unplanned readmission occurred in eight (25.0%), six (35.3%), and two (20.0%) patients in the AC12, AC24 and ACjoined groups, respectively. The outcome of patients with E. faecalis IE treated with AC in OPAT programs relies on an optimization of the delivery of the combination. AC24 exhibit an unexpected rate of failures, however, ACjoined might be an effective alternative which clinical results should corroborate in further studies.The authors received no financial support for the research, authorship, and/or publication of this article. GVA was supported by the Instituto de Salud Carlos III, cofinanced by the European Development Regional Fund (“A way to achieve Europe”), Subprograma Miguel Servet (grant CP19/00159). HHL was supported by the Instituto de Salud Carlos III, Subprograma Rio Hortega (grant CM19/00152)
Cementos de arcillas calcinadas y caliza preparados en la Universidad de Málaga
Adjuto documentoproyectos del MICINN (cofinanciados FEDER) PID2019-104378RJ-I00 y PID2020-114650RB-I00.
Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
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