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Daniel Alejandro Perez Navarro

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DOI: 10.48550/arxiv.1811.12276
2018
Cited 36 times
Improving Hospital Mortality Prediction with Medical Named Entities and Multimodal Learning
Clinical text provides essential information to estimate the acuity of a patient during hospital stays in addition to structured clinical data. In this study, we explore how clinical text can complement a clinical predictive learning task. We leverage an internal medical natural language processing service to perform named entity extraction and negation detection on clinical notes and compose selected entities into a new text corpus to train document representations. We then propose a multimodal neural network to jointly train time series signals and unstructured clinical text representations to predict the in-hospital mortality risk for ICU patients. Our model outperforms the benchmark by 2% AUC.
DOI: 10.46661/rio.20509
2024
Employment relationships and firm sustainability: does the strength of the HRM system play a role? [Dataset]
The aim of the present study, based on the framework of social exchange theory and sustainability, is twofold: first, to show how distinct employment relationships (ERs) can have different effects on sustainability outcomes; and second, to demonstrate how such an impact is mediated by the strength of the HRM system. The proposed model was tested using the multivariate method of partial least squares structural equation modelling (PLS-SEM) on a sample of 206 companies in the chemical and metallurgical industries. Data were collected via a questionnaire composed of measurement scales previously validated in the reference literature. Each company's production and HR managers were asked to complete the questionnaire. Our results showed that mutual investment ERs can indeed produce better sustainability results, and organisations with quasi-spot contract (QSC) relationships are unable to achieve sustainable organisational outcomes. The results also confirmed that a strong HRM system reinforces the positive effects of mutual investment ERs. Moreover, a strong HRM mitigates the negative effects of QSCs. In essence, our paper shows that the strength of an HRM system is a major driver of sustainability. Therefore, when implementing working relationships, managers should foster shared perceptions of the firm's values among its employees, thus clearly defining which behaviours are expected and rewarded.
DOI: 10.11607/prd.2755
2016
Cited 6 times
Effect of Simplified One-Step Drilling Protocol on Osseointegration
This study was designed to compare the combined effect of two different drilling techniques (conventional expansion and one-step) and four different implant geometries in a beagle dog model. The nondecalcified bone-implant samples underwent histologic/metric analysis at 2 and 6 weeks. Morphologic analysis showed similarities between different drilling technique groups and implant geometries. Histomorphometric parameters, bone-to-implant contact (BIC), and bone area fraction occupancy (BAFO) were analyzed, and no statistical difference between drilling groups and/or implant geometry was found. Time was the only variable that affected BIC and BAFO, suggesting that the two protocols are equally biocompatible and osseoconductive.
DOI: 10.1088/1748-0221/16/05/c05002
2021
Cited 6 times
Front-end electronics for CMS iRPC detectors
Abstract A new generation of resistive plate chambers, capable of withstanding high particle fluxes (up to 2000 Hz · cm -2 ) and instrumented with precise timing readout electronics is proposed to equip two of the four high pseudorapidity stations of the CMS muon system. Double-gap RPC detectors, with each gap made of two 1.4 mm High Pressure Laminate electrodes and separated by a gas gap of the same thickness, are proposed. The new layout reduces the amount of the avalanche charge produced by the passage of a charged particle through the detector. This improves the RPC rate capability by reducing the needed time to collect this charge. To keep the RPC efficiency high, a sensitive, low-noise and high time resolution front-end electronics is needed to cope with the lower charge signal of the new RPC. An ASIC called PETIROC that has all these characteristics has been selected to read out the strips of new chambers. Thin (0.6 mm) printed circuit board, 160 cm long, equipped with pickup strips of 0.75 cm average pitch, will be inserted between the two new RPC's gaps. The strips will be read out from both ends, and the arrival time difference of the two ends will be used to determine the hit position along the strip. Results from the improved RPC equipped with the new readout system and exposed to cosmic muons in the high irradiation environment at CERN GIF++ facility are presented in this work.
DOI: 10.1109/fie.2014.7044336
2014
Cited 6 times
Using cybersecurity as an engineering education approach on computer engineering to learn about Smart Grid technologies and the next generation of electric power systems
The security of our country is constantly being threatened. In order to ensure protection for our society, it is necessary to detect vulnerabilities in critical systems before terrorists or other adversaries are able to exploit them. Part of these vulnerabilities could be solved by improving the effectiveness of certain systems, for example, the electric power system. This system, also known as an electrical grid, can be dramatically improved by utilizing Smart Grid technologies. These technologies can incorporate a large number of features to the current system, which facilitate the production and distribution of electrical energy from the power plants to the customers. Electric companies usually employ the use of a software called Supervisory Control and Data Acquisition (SCADA) to control this type of systems. The focus of this work is using cybersecurity in Smart Grid systems as a engineering education tool. Students will begin by examining, in a simulated environment with two different machines, the process in which an attacker could potentially penetrate and compromise a computer inside the running SCADA software. The attacker computer has a set of software tools that help in the penetration testing process and the victim computer runs a commercially available SCADA software. These experiments provide computer engineering students with a hands on experience in Smart Grid cybersecurity-related issues.
DOI: 10.1088/1748-0221/15/11/c11012
2020
Cited 6 times
Improved-RPC for the CMS muon system upgrade for the HL-LHC
During Phase-2 of the LHC, known as the High Luminosity LHC (HL-LHC), the accelerator will increase its instantaneous luminosity to 5 × 1034 cm−2 s−1, delivering an integrated luminosity of 3000 fb−1 over 10 years of operation starting from 2027. In view of the HL-LHC, the CMS muon system will be upgraded to sustain efficient muon triggering and reconstruction performance. Resistive Plate Chambers (RPCs) serve as dedicated detectors for muon triggering due to their excellent timing resolution, and will extend the acceptance up to pseudorapidity values of |η|=2.4. Before Long Shutdown 3 (LS3), the RE3/1 and RE4/1 stations of the endcap will be equipped with new improved Resistive Plate Chambers (iRPCs) having different design and geometry than the present RPC system. The iRPC geometry configuration improves the detector's rate capability and its ability to survive the harsh background conditions of the HL-LHC . Also, new electronics with excellent timing performances (time resolution of less than 150 ps) are developed to read out the RPC detectors from both sides of the strips to allow for good spatial resolution along them. The performance of the iRPC has been studied with gamma radiation at the Gamma Irradiation Facility (GIF++) at CERN. Ongoing longevity studies will help to certify the iRPCs for the HL-LHC running period. The main detector parameters such as the current, rate and resistivity are regularly monitored as a function of the integrated charge. Preliminary results of the detector performance will be presented.
DOI: 10.1088/1748-0221/17/01/c01011
2022
Upgrade of the CMS resistive plate chambers for the high luminosity LHC
Abstract During the upcoming High Luminosity phase of the Large Hadron Collider (HL-LHC), the integrated luminosity of the accelerator will increase to 3000 fb −1 . The expected experimental conditions in that period in terms of background rates, event pileup, and the probable aging of the current detectors present a challenge for all the existing experiments at the LHC, including the Compact Muon Solenoid (CMS) experiment. To ensure a highly performing muon system for this period, several upgrades of the Resistive Plate Chamber (RPC) system of the CMS are currently being implemented. These include the replacement of the readout system for the present system, and the installation of two new RPC stations with improved chamber and front-end electronics designs. The current overall status of this CMS RPC upgrade project is presented.
DOI: 10.1016/j.eimce.2022.05.010
2022
Generalized implementation of reflex testing of hepatitis C in Galicia: Results for reflection
The implementation of reflex testing of active hepatitis C virus (HCV) infection, together with the incorporation of informative alerts in the reports, has shown that it significantly reduces the number of patients who were not referred for therapeutic evaluation.Since the implementation in 2018 of the DUSP in the Microbiology Services of the Galician Health Service hospitals (SERGAS), new diagnoses of active HCV infection have been retrospectively identified and characterized.In 2018, a total of 258 patients with unknown active HCV infection (70,2% men, middle age 52 years) were identified through by reflex testing from consultations of primary and specialized care units in 54.8% and 39.8% respectively, as well as from other locations by 5.4%. Of the 258 patients, 81.0% were referred for therapeutic evaluation, with a median of 54 days from their diagnosis. In 58.3% of the cases the reflex testing was determined by viral load, the predominant genotype was 1a (30,7%) and 52,1% were treated, observing sustained viral response (SVR) in 93.7 % of these.The generalized implementation of the HCV reflex testing together with informative alerts in Galicia has allowed us to obtain referral rates for treatment similar to those obtained in other studies. However, there is a wide variability between the different centers that require the incorporation of improvements, such as training or the use of rescue measures for optimization.
DOI: 10.1007/978-3-030-95967-8
2022
Ensuring Sustainability
DOI: 10.1088/1748-0221/15/10/c10027
2020
Cited 3 times
Experiences from the RPC data taking during the CMS RUN-2
The CMS experiment recorded 177.75 /fb of proton-proton collision data during the RUN-1 and RUN-2 data taking period. Successful data taking at increasing instantaneous luminosities with the evolving detector configuration was a big achievement of the collaboration. The CMS RPC system provided redundant information for the robust muon triggering, reconstruction, and identification. To ensure stable data taking, the CMS RPC collaboration has performed detector operation, calibration, and performance studies. Various software and related tools are developed and maintained accordingly. In this paper, the overall performance of the CMS RPC system and experiences of the data taking during the RUN-2 period are summarised.
DOI: 10.1088/1748-0221/16/04/c04005
2021
CMS RPC background — studies and measurements
Abstract The expected radiation background in the CMS RPC system has been studied using the MC prediction with the CMS FLUKA simulation of the detector and the cavern. The MC geometry used in the analysis describes very accurately the present RPC system but still does not include the complete description of the RPC upgrade region with pseudorapidity 1.9 < |η| < 2.4. Present results will be updated with the final geometry description, once it is available. The radiation background has been studied in terms of expected particle rates, absorbed dose and fluence. Two High Luminosity LHC (HL-LHC) scenarios have been investigated — after collecting 3000 and 4000 fb -1 . Estimations with safety factor of 3 have been considered, as well.
DOI: 10.1088/1748-0221/15/10/c10007
2020
RPC system in the CMS Level-1 Muon Trigger
The CMS experiment implements a two-level triggering system composed of Level-1, instrumented by custom-design hardware boards, and a software High Level Trigger. To cope with the more challenging luminosity conditions, a new Level-1 architecture has been deployed during run II. This new architecture exploits in a better way the redundancy and complementarity of the three muon subsystems: Cathode Strip Chambers (CSC), Drift Tubes (DT) and Resistive Plate Chambers (RPC). The role of each subsystem in the Level-1 Muon Trigger is described here, highlighting the contribution from the RPC system. Challenges brought by the HL-LHC environment and new possibilities coming from detector and trigger upgrades are also discussed.
DOI: 10.1088/1748-0221/16/05/c05003
2021
CMS phase-II upgrade of the RPC Link System
Abstract The present RPC Link System has been servicing as one of the CMS subsystems since installation in 2008. Although the current Link System has been functioning well for the past 13 years, the aging of its electronic components and lack of radiation hard ASICs could present problems for future operations. Additionally, the needs to have a more robust control interface against electromagnetic interference, to improve the trigger performance with finer time granularity and to incorporate a higher bandwidth transmission lines led the idea of upgrading the Link System for the HL-LHC. This paper reviews the features of the recently developed prototype of the new Link System.
DOI: 10.1097/psn.0000000000000458
2022
Osteonecrosis and Osteomyelitis of the Proximal Third of Tibia as a Late Sequela of COVID-19: A Case Report
Coronavirus disease was first described as an identified syndrome in December 2019 (COVID-19). Since then, a global pandemic has taken place and the disease has repeatedly been associated with thromboembolic complications, most of which are venous, but may also occur at the arterial level, even in patients receiving thromboprophylaxis. To date, only medium- and large-caliber vessels have been affected by arterial thrombosis secondary to COVID-19. This article describes the case of a 60-year-old woman with a prior severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) infection who developed multiple bone infarcts, complicated by secondary osteomyelitis. The patient underwent multiple surgical debridements and received a variety of antibiotics before the correct diagnosis was made and a multidisciplinary surgery was planned that provided coverage with a medial gastrocnemius flap. At 5-months follow-up, the patient had recovered well without any clinical evidence of infection or other complications. To the best of our knowledge, this is the first known case of a bone infarct complicated with a secondary osteomyelitis occurring in a patient having suffered a previous SARS-CoV-2 infection. We postulate as our main hypothesis that the prothrombogenic state secondary to SARS-CoV-2 infection may have contributed to thrombosis of small-caliber vessels, in our patient the arteria nutricia tibialis, triggering bone infarcts and a secondary infection with Staphylococcus aureus.
DOI: 10.1088/1748-0221/15/10/c10009
2020
A new approach for CMS RPC current monitoring using Machine Learning techniques
The CMS experiment has 1054 RPCs in its muon system. Monitoring their currents is the first essential step towards maintaining the stability of the CMS RPC detector performance. The current depends on several parameters such as applied voltage, luminosity, environmental conditions, etc. Knowing the influence of these parameters on the RPC current is essential for the correct interpretation of its instabilities as they can be caused either by changes in external conditions or by malfunctioning of the detector in the ideal case. We propose a Machine Learning(ML) based approach to be used for monitoring the CMS RPC currents. The approach is crucial for the development of an automated monitoring system capable of warning for possible hardware problems at a very early stage, which will contribute further to the stable operation of the CMS RPC detector.
2001
Comparisons of NORAD two-line elements with INTELSAT orbital elements
DOI: 10.1088/1748-0221/16/04/c04001
2021
Towards a two-dimensional readout of the improved CMS Resistive Plate Chamber with a new front-end electronics
Abstract As part of the Compact Muon Solenoid experiment Phase-II upgrade program, new resistive plate chambers will be installed in the region at low angle with respect to the beam collision axis, in order to improve the detection of muons with a low transverse momentum. High background conditions are expected in this region during the high-luminosity phase of the Large Hadron Collider, therefore an improved-RPC design has been proposed with a new front-end electronics to sustain a higher particle rate capability and better time resolution. A new technology is used in the front-end electronics resulting in low achievable signal detection of 1–20 fC. Crucial in the design of the improved-RPC is the capability of a two-dimensional readout in order to improve the spatial resolution, mainly motivated by trigger requirements. In this work, the first performance results towards this two-dimensional readout are presented, based on data taken on a real-size prototype chamber with two embedded readout planes with orthogonal strips.
2015
Rd 172/2007 de Modificación de la Demarcación de los Registros de la Propiedad Mercantiles y de Bienes Muebles: Registro de la Propiedad de Coslada Número 2
2016
Rol de los gobiernos locales en la política social
DOI: 10.20432/prd2017372
2017
Efeito do Protocolo Simplificado de Perfuração Única Sobre a Osseointegração
2017
Gestión de los gobierno locales en la inversión social 2016: consideraciones sobre el alcance municipal en creación de vivienda
2008
Hepatitis B y C en coinfección con VIH en un banco de sangre en Corrientes Hepatitis B, hepatitis C and HIV coinfection in a blood bank in Corrientes
DOI: 10.21203/rs.3.rs-2330593/v1
2022
Copernicus for Urban Resilience in Europe
Abstract A major challenge for the urban community is the exploitation of Earth Observation intelligence in the multidimensional nature of urban sustainability, towards enhancing urban resilience, particularly in relation to the challenges of climate change. Here, we present the ways in which the Horizon2020 funded project CURE synergistically exploited Copernicus Core Services (CCS) to support urban resilience. CURE provides spatially disaggregated environmental intelligence at a local scale, as well as a proof-of-concept that urban planning and management strategies, enhancing the resilience of cities, can be supported by CCS. CURE has developed eleven cross-cutting applications between CCS, reflecting the main urban sustainability dimensions and are relevant to user needs, which were identified based on a strong stakeholders’ engagement. CURE is built on Data and Information Access Services, as a system integrating these cross-cutting applications, capable of supporting downstream services across Europe, enabling its incorporation into operational Copernicus products portfolio in the future.
DOI: 10.4049/jimmunol.208.supp.102.26
2022
Mechanisms underlying the mollusk hemocyanin processing and presentation through MHC-dependent pathways in antigen presenting cells of mammals
Abstract Hemocyanins are oligomeric glycoproteins widely used as immunomodulators because they bias immunity towards a Th1 profile when inoculated in mammals. We have demonstrated that hemocyanins are internalized through receptor-mediated endocytosis, and TLR4 and C-type lectin receptors (MR, DC-SIGN, MGL) participate in the hemocyanin-mediated proinflammatory response in mouse and human dendritic cells (DCs). However, despite the massive use of hemocyanins, their intracellular processing route for MHC presentation to T lymphocytes has been scarcely studied. Therefore, we hypothesized that hemocyanins follow the MHC-II pathway as a classical T-cell-dependent antigen. Interestingly, our results analyzing the processing pathway of hemocyanins in mouse DCs showed that hemocyanins from Fissurella latimarginata (FLH) and Megathura crenulata (KLH) co-localized with Rab5+, Rab7+, and Lamp-1+ compartments. This observation strongly suggests that hemocyanins could be cross-presented by MHC-I molecules. Furthermore, DCs incubated with FLH showed an increase in the percentage of MHC-I+ cells versus the control cells. FLH-induced cytokine secretion decreased in J774.2 macrophages treated with pharmacological inhibitors of both MHC-II and MHC-I pathways, supporting our previous results on hemocyanin cross-presentation but also the MHC-II pathway. Furthermore, immunoblot confirmed different FLH proteolysis patterns in macrophages treated with MHC-I and MHC-II pathway inhibitors. Hence, we postulate that hemocyanins undergo both MHC-I and MHC-II dependent antigen presentation pathways in antigen-presenting cells. These findings offer molecular clues to underlying hemocyanin processing and presentation mechanisms. Supported by grants from FONDECYT N° 1151337 and N° 1201600 (MIB), ANID/Beca Doctorado Nacional N° 21210946 (MLS) and N° 21200880 (DDD).
DOI: 10.1115/1.4042358
2019
Sensitivity Analysis of the Thermal Diffusion Coefficient Effect on the Departure From Nucleate Boiling Ratio With the VIPRE Code
One of the limiting conditions during operation of a pressurized water reactor (PWR) is cladding integrity in class I (normal operations) or class II (most frequent). Cladding integrity is limited typically by the departure from the nucleate boiling (DNB), which criterion ensures an appropriate core cooling. Adequate heat transfer between the fuel cladding and reactor coolant is achieved by preventing DNB that is avoided if the local heat flux is lower than the critical heat flux (CHF). The DNB is estimated thanks to thermal-hydraulic (TH) design codes, as the VIPRE-W code that predicts the fluid behavior based on the geometry of the problem, the fuel rods and the fluid properties among others. One of the parameters that influences the DNB estimation is the thermal diffusion coefficient (TDC), which depends on the fuel design and is affected by the grid spacing. As a matter of fact, the TDC enters into the DNB calculation for thermal mixing between subchannels and in some special cases like the most primitive fuel designs, as a factor within the DNB correlation. Nevertheless, although the TDC is a variable, the TH design codes used for the DNB prediction consider the TDC as a constant. This investigation is founded on a new numerical program developed to explore the effect of the TDC on the DNB. In addition to this, variables as the effect of the turbulent momentum factor (FTM) and the correlation effect has been explored too. The most direct outcome of this research is the substantial extension of the existing studies of VIPRE-W TH code. The results show that TDC has an effect on the DNB dominated by the radial power distribution. The departure from nucleate boiling ratio (DNBR) increases up to 1.2% when TDC is a variable under normal operation radial shapes. For the design radial distribution, this effect is vanished but observable for values under 0.02 with an exponential increase of the DNBR with respect to the TDC. From this moment on, the energy exchanged between subchannels is negligible due to the flatness shape of the radial enthalpy distribution.
DOI: 10.1016/j.rccl.2019.03.001
2019
Insuficiencia cardiaca aguda secundaria a miocarditis eosinofílica
DOI: 10.1088/1748-0221/15/09/c09025
2020
Effects of the electronic threshold on the performance of the RPC system of the CMS experiment
Resistive Plate Chambers have a very important role for muon triggering both in the barrel and in the endcap regions of the CMS experiment at the Large Hadron Collider (LHC) . In order to optimize their performance, it is of primary importance to tune the electronic threshold of the front-end boards reading the signals from these detectors. In this paper we present the results of a study aimed to evaluate the effects on the RPC efficiency, cluster size and detector intrinsic noise rate, of variations of the electronics threshold voltage.
2020
arXiv : CMS RPC Background -- Studies and Measurements
DOI: 10.1016/j.eimce.2018.05.015
2019
Diagnóstico tradicional versus diagnóstico en un solo paso del virus de la hepatitis C. Estudio piloto en 2 centros asistenciales
We have developed a MALDI-TOF-mediated phenotypic method, which determines antibiotic susceptibility (AS) from positive blood cultures (BCs) in 2 h. We developed a software for process automation. We report results on Escherichia coli-positive BCs with cefotaxime (CTX) and ciprofloxacin (CIP).We studied CIP and CTX activity in 18 and 17 real E. coli-positive BCs, and in 56 and 45 spiked BCs, respectively. Positive BCs were incubated for 2 h without any antibiotics, and with 2 mg/l and 4 mg/l of CIP and CTX. The extraction was performed using ethanol/formic acid. Spectra were processed with specifically developed software which compares the peaks’ intensity and the size of specific peaks.The set cut-off point was a 3-fold decrease in the summation of all peaks and/or the 5382m/z peak value (ribosomal protein L34). In simulated BCs, the correlation of CIP 2 mg/l and 4 mg/l with Etest® was 94.6% and 98.2%, respectively; for CTX 2 mg/l and 4 mg/l, this correlation was 95.6%. In real BCs, the correlations were 100% for CIP (2 mg/l and 4 mg/l) and 88.2% and 94.1% for CTX 2 mg/l and 4 mg/l, respectively. Resistant isolates were always correctly classified.This method provides accurate, fast and inexpensive AS information. The method can be automated, making it easier to implement in a microbiology laboratory routine.Se ha desarrollado un método fenotípico basado en MALDI-TOF, que determina la sensibilidad a antibióticos en hemocultivos (HC) positivos en 2 h. Se ha desarrollado un software que automatiza el proceso. Se presentan los resultados en HC positivos para Escherichia coli, con cefotaxima (CTX) y ciprofloxacino (CIP).Se estudió la actividad de CIP y CTX en 18 y 17 HC positivos reales con E. coli, y en 56 y 45 HC simulados. Los HC positivos se incubaron durante 2 h sin antibiótico, y con 2 y 4 mg/l de CIP y de CTX. La extracción se realizó con etanol/ácido fórmico. Los espectros se procesaron con un software específico, que compara la intensidad de los picos y el tamaño de los picos específicos.El punto de corte establecido fue una disminución de 3 veces en la suma de picos, y/o en el valor del pico de 5.382 m/z (proteína ribosómica L34). En hemocultivos simulados la correlación con Etest® para las concentraciones de CIP de 2 y 4 mg/l fueron 94,6 y 98,2%, respectivamente, y 95,6% para CTX (2 y 4 mg/l). En HC reales, la correlación con Etest® fue del 100% para CIP (2 y 4 mg/l), y del 88,2 y 94,1% para CTX 2 y 4 mg/l, respectivamente. Los aislados resistentes siempre se clasificaron correctamente.Este método proporciona información sobre sensibilidad a antimicrobianos de manera precisa, rápida y barata. El método se puede automatizar e incluir en la rutina del laboratorio de microbiología.
DOI: 10.48550/arxiv.2005.12769
2020
CMS RPC Background -- Studies and Measurements
The expected radiation background in the CMS RPC system has been studied using the MC prediction with the CMS FLUKA simulation of the detector and the cavern. The MC geometry used in the analysis describes very accurately the present RPC system but still does not include the complete description of the RPC upgrade region with pseudorapidity $1.9 < \lvert \eta \rvert < 2.4$. Present results will be updated with the final geometry description, once it is available. The radiation background has been studied in terms of expected particle rates, absorbed dose and fluence. Two High Luminosity LHC (HL-LHC) scenarios have been investigated - after collecting $3000$ and $4000$ fb$^{-1}$. Estimations with safety factor of 3 have been considered, as well.
DOI: 10.59283/ebk-978-85-93653-09-4
2020
O PULO DO GATO EM VENDAS
DOI: 10.1037/e537052012-304
2004
Connectionist Landscaping: A Tool for Analyzing and Comparing Localist Models of Language Processing
2005
INNOVACIONES AL PAISAJE, EN CASA DEL LAGO
EL HA SIDO TEMA DE INSPIRACION EN LA PRODUCCION ARTISTICA DE LOS TIEMPOS. ALGUNOS DE LOS MOVIMIENTOS ARTISTICOS COMO EL ROMANTICISMO, EL IMPRESIONISMO Y EL LAND ART LO HAN TRATADO CON DIVERSAS PERSPECTIVAS TECNICAS. LA APROXIMACION QUE HACEN DEL LOS ARTISTAS GRAFICOS DIEGO BERRUECOS, TOMAS CANCHOLA, ALEX DORFSMAN, PABLO LOPEZ LUZ Y DANIEL NAVARRO ES UNA PERSPECTIVA ACORDE CON EL LENGUAJE VISUAL CONTEMPORANEO. LOS CINCO ARTISTAS SON autorES DE MAS DE 30 IMAGENES, REALIZADAS CON DIVERSAS TECNICAS, QUE INTEGRAN LA EXPOSICION PAISAJE ARTIFICIAL, QUE SE EXHIBE DESDE EL 25 DE AGOSTO Y HASTA EL 15 DE OCTUBRE EN CASA DEL LAGO JUAN JOSE ARREOLA COMO PARTE DE FOTO-SEPTIEMBRE. CON LA CURADURIA DE ITZEL VARGAS, LA MUESTRA OFRECE UN PANORAMA ACTUAL DEL TRABAJO QUE REALIZA ESTE GRUPO DE JOVENES CREADORES INTERESADOS EN LA EXPERIMENTACION A PARTIR DE LA IMAGEN Y SUS POSIBLES MODIFICACIONES POR MEDIO DE LAS NUEVAS TECNOLOGIAS. A PESAR DE QUE EL TRABAJO DE LOS CINCO ARTISTAS PARTE DE IMAGENES REALES, RECOGIDAS EN LUGARES TAN DIVERSOS COMO ROMA, ARGENTINA, CANCUN O MICHOACAN, LA INTENCION DE ELLOS, COMO LO SENALO LA CURADORA DE LA EXPOSICION, NO ES OFRECER LA IMAGEN DE UN ENTORNO NATURAL, SINO UNA PROPUESTA ESTETICA QUE EXPLORA EL CONCEPTO DEL DESDE UNA PERSPECTIVA CONTEMPORANEA. ITZEL VARGAS COMENTO QUE EL CONCEPTO EN ESTA EXHIBICION SE REFIERE AL MODO EN QUE EL AMBIENTE ES TRANSGREDIDO, RECREADO, OBSERVADO Y REINVENTADO, DE MANERA QUE LOS autorES TRAZAN RECORRIDOS DE CONTEXTOS TAN DISIMILES COMO UN ESTACIONAMIENTO, UN ACUARIO O UNA DUNA EN EL DESIERTO. DIEGO BERRUECOS PRESENTA LA SERIE TODOS LOS MC DONALD'S QUE VI EN UN ANO, DONDE EL FOTOGRAFO MUESTRA COMO LA CADENA ESTADUNIDENSE DE HAMBURGUESAS SE HA CONVERTIDO EN UN ELEMENTO VISUAL QUE HA INVADIDO LAS METROPOLIS MAS IMPORTANTES DEL MUNDO. DESDE OTRA PERSPECTIVA, TOMAS CANCHOLA REGISTRA LOS PAISAJES DE SUS VIAJES, A MANERA DE ITINERARIO VISUAL, AL CAPTAR ESCENAS DE LA VIDA NATURAL O ENTORNOS INTERVENIDOS POR LA MANO DEL HOMBRE. ESTO LO HACE A MODO DE UN FOTOGRAFO DE NATIONAL GEOGRAPHIC. ALEX DORFSMAN EN CAMBIO DOCUMENTA PARALELISMOS ENTRE ESCENAS PAISAJISTICAS REALES Y ARTIFICIALES PRESENTADAS EN UN MISMO CONTEXTO. POR OTRA PARTE, PABLO LOPEZ LUZ PARTICIPA CON UNA SERIE DE FOTOGRAFIAS MANIPULADAS DIGITALMENTE DE PAISAJES DONDE APARECEN ELEMENTOS CREADOS POR EL HOMBRE O ASENTAMIENTOS HUMANOS DONDE EL CONCRETO SE APROPIA DEL PAISAJE. FINALMENTE, DANIEL NAVARRO INTERVIENE EL PARA CREAR ESCENARIOS COMO SI FUERAN ELEMENTOS ENCONTRADOS. ASI ES COMO INSTALA DOS PORTERIAS EN UN LLANO EN DISTINTAS SITUACIONES CLIMATICAS. POR OTRO LADO, DESCUBRE MODOS DE APROPIACION DEL ESPACIO COMO LOS RECURSOS EMPLEADOS COTIDIANAMENTE EN LAS CALLES DE LA CIUDAD PARA APARTAR LUGARES DE ESTACIONAMIENTO. LA EXPOSICION PAISAJE ARTIFICIAL SE EXHIBE EN LA GALERIA DEL LAGO, SALAS A Y B, EN EL ANTIGUO BOSQUE DE CHAPULTEPEC, PRIMERA SECCION. ENTRADA POR REFORMA (PUERTA AL ZOOLOGICO). SE PROPORCIONAN DATOS SOBRE LA TRAYECTORIA DE CADA UNO DE LOS EXPOSITORES.