Aprovechamiento de residuos de la industria textil para la preparación de telas de carbón activo.

Los residuos generados por la industria textil en España se han cuantificado sobre unas 30.000 Toneladas durante los últimos años. Debido al gran volumen de almacenamiento que necesitan estos residuos, así como la problemática generada por la disponibilidad geográfica, hacen que sea de gran interés el estudio del aprovechamiento de estos materiales, siendo de gran importancia la obtención de materiales carbonosos que poseen originariamente una estructura fibrilar en forma continua, cuya forma presenta características muy interesantes para distintas aplicaciones. En el presente trabajo se muestran los resultados de preparación y caracterización de materiales carbonosos a partir de residuos de la industria textil, usando como materia prima tejidos de algodón, los cuales se activarán químicamente con H3PO4. Las telas de carbón activo obtenidas serán usadas para testar su aplicación como adsorbentes y como materiales para almacenamiento de energía.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Breast Tumor Localization by Prone to Supine Landmark Driven Registration for Surgical Planning

Breast cancer is the most common cancer in women worldwide. Screening programs and imaging improvements have increased the detection of clinically occult non-palpable lesions requiring preoperative localization. Wire guided localization (WGL) is the current standard of care for the excision of non-palpable carcinomas during breast conserving surgery. Due to the current limitations of intraoperative tumor localization approaches, the integration of multimodal imaging information may be especially relevant in surgical planning. This research proposes a novel method for performing preoperative image-to-surgical surface data alignment to determine the position of the tumor at the time of surgery and aid preoperative planning. First, the volume of the breast in the surgical position is reconstructed and a set of surface correspondences is defined. Then, the preoperative (prone) and intraoperative (supine) volumes are co-registered using landmark driven non-rigid registration methods. We compared the performances of diffeomorphic and Bspline based registration methods. Finally, our method was validated using clinical data from 67 patients considering as target registration error (TRE) the distance between the estimated tumor position and the reference surgical position. The proposed method achieved a TRE of 16.21 ± 8.18 mm and it could potentially assist the surgery planning and guidance of breast cancer treatment in the clinical practice.This work was supported in part by the Spanish Ministry of Science and Innovation under Project RTI2018-098682-B-I00 (MCIU/AEI/FEDER,UE), Project PI18/01625 (Instituto de Salud Carlos III) and Grant BGP18/00178 under Beatriz Galindo Programme; in part by the European Union's European Regional Development Fund (ERDF); and in part by the Madrid Government (Comunidad de Madrid-Spain) under the Multiannual Agreement with Universidad Politécnica de Madrid in the line Support for Research and Development Projects for Beatriz Galindo researchers, in the context of the V Plan Regional de Investigación Científíca e Innovación Tecnológica (PRICIT)

Deformation quantization of cosmological models

The Weyl-Wigner-Groenewold-Moyal formalism of deformation quantization is applied to cosmological models in the minisuperspace. The quantization procedure is performed explicitly for quantum cosmology in a flat minisuperspace. The de Sitter cosmological model is worked out in detail and the computation of the Wigner functions for the Hartle-Hawking, Vilenkin and Linde wave functions are done numerically. The Wigner function is analytically calculated for the Kantowski-Sachs model in (non)commutative quantum cosmology and for string cosmology with dilaton exponential potential. Finally, baby universes solutions are described in this context and the Wigner function is obtained.Comment: 37 pages, 16 figure

Incidence and management of inguinodynia after inguinal plasty

Background: Hernia is defined as a defect of fascial and muscle-aponeurotic structures, allowing the protrusion of elements. The most frequent is inguinal region, prevailing in men 3:1 vs female. The most frequent complications are persistent chronic pain.Methods: A descriptive, prospective and cross-sectional study was performed in postoperative inguinal plasty patients, using a laparoscopic approach and open approach, the presence or absence of inguinodynia was studied using the visual analogue pain scale (VAS) and the Semmes-Weinstein monofilament, in addition to a systematic investigation in the following PubMed, Medline, Clinical Key and Index Medicus databases, with articles from July 2019 to April 2020.Results: Inguinodynia was present in laparoscopic surgery and open approach, 58 patients had inguinodynia at two weeks associated with the inflammatory response of the tissues and the presence of a foreign body (mesh), 77% of the patients with persistence of pain at 3 months reported mild pain (VAS 1-4), 21% moderate pain that did not limit their daily activities (VAS 5-8) and 2% of the patients reported severe pain which limited physical activity and effort   (VAS 9-10).Conclusions: Inguinodynia has an impact on hospital costs and quality life, we consider it is essential to domain the anatomical variants of the region. We propose an extensive follow-up of this group of patients, to make a comparison of diagnostic methods, as well as conservative management vs. modern techniques for pain control

Multivariate analysis and extraction of parameters in resistive RAMs using the Quantum Point Contact model

A multivariate analysis of the parameters that characterize the reset process in RRAMs has been performed. The different correlations obtained can help to shed light on the current components that contribute in the Low Resistance State (LRS) of the technology considered. In addition, a screening method for the Quantum Point Contact (QPC) current component is presented. For this purpose the second derivative of the current has been obtained using a novel numerical method which allows determining the QPC model parameters. Once the procedure is completed, a whole RS series of thousands of curves is studied by means of a genetic algorithm. The extracted QPC parameter distributions are characterized in depth to get information about the filamentary pathways associated with LRS in the low voltage conduction regime.Spanish Ministry of Economy and Competitiveness TEC2014-52152-C3-2-R , MTM2013-47929-P (also supported by the FEDER program)IMB-CNM Spanish Ministry of Economy and Competitiveness TEC2014-52152-C3-1-R and TEC2014-54906-JIN (supported by the FEDER program)ENIAC Joint Undertaking-PANACHE project.Spanish ICTS Network MICRONANOFAB

Fallo renal agudo en el paciente crítico. Acute renal failure in critically-ill patients

Se realiza un estudio prospectivo, longitudinal y descriptivo, para definir las características clínico epidemiológicas de la insuficiencia renal aguda en la Unidad de Cuidados Intermedios del Hospital Universitario "Abel Santamaría" del 1ro de enero de 2002 al 31 de diciembre de 2002. El universo lo constituyeron los 3 025 pacientes ingresados en la unidad de cuidados intermedios en el período analizado. La muestra total quedó constituida por los 363 pacientes que presentaron insuficiencia renal aguda luego de la admisión en la unidad, representando un 12%. Se incluyeron los pacientes ingresados en la Unidad de Cuidados Intermedios en estado grave y que en el transcurso de dicho ingreso se le diagnosticó un fallo renal agudo, según los siguientes criterios: disminución del volumen de orina por debajo de 500 ml/24 horas y/o incremento de la creatinemia superior a 0,5 mg/dl (44 micromoles/l) por encima de su valor normal en menos de 24 horas. Existió predominio en el grupo de edades por encima de los 46 años, haciéndose más evidente por encima de los 75. Las causas de falla renal aguda más frecuentes fueron la hipovolemia absoluta y la disminución del volumen circulatorio efectivo. El tipo de insuficiencia renal aguda que más se reportó fue la hiperazoemia prerenal, siendo las infecciones, los trastornos hidroelectrolíticos, la hipertensión arterial y las arritmias cardíacas las complicaciones más frecuentemente encontradas. La modalidad terapéutica que más se aplicó fue el tratamiento conservador. DeCS: EPIDEMIOLOGÍA, INSUFICIENCIA RENAL AGUDA.ABSTRACT A retrospective, longitudinal and descriptive study is carried out to determine clinical and epidemiological features of acute renal failure at Abel Santamaría University Hospital Intermediate Health Care Unit, from January 1st 2002 to December 31st 2002. The whole patient group comprised 3015 patients admitted at Intermediate Health Care Unit during the above mentioned period. The overall sample finally consisted of 363 patients with acute renal failure after admission at the Unit, this representing 12 %. Patients admitted at Intermediate Health Care Unit with serious health conditions were included and throughout the admission period they were found to present acute renal failure, according to the following criteria: decrease in urine volume below 500 ml/24 hours and/or increase in creatinemia above 0.5 mg/dl (44 micromols/l) over its normal value in less than 24 hours. The age group over 46 years of age prevailed, more evidently over 75. The most frequent acute renal failure causes were associated with absolute hypovolemia and a decrease in the effective circulatory volume. They type of acute renal failure mostly reported was pre - renal hyperazotemia, where infections, hydroelectric disorders, hypertension and cardiac arrhythmias were most often found. The most applied therapeutic modality was the conservative treatment. DeCS: EPIDEMIOLOGY, KIDNEY FAILURE, ACUTE

Fallo renal agudo en el paciente crítico. Acute renal failure in critically-ill patients

Se realiza un estudio prospectivo, longitudinal y descriptivo, para definir las características clínico epidemiológicas de la insuficiencia renal aguda en la Unidad de Cuidados Intermedios del Hospital Universitario "Abel Santamaría" del 1ro de enero de 2002 al 31 de diciembre de 2002. El universo lo constituyeron los 3 025 pacientes ingresados en la unidad de cuidados intermedios en el período analizado. La muestra total quedó constituida por los 363 pacientes que presentaron insuficiencia renal aguda luego de la admisión en la unidad, representando un 12%. Se incluyeron los pacientes ingresados en la Unidad de Cuidados Intermedios en estado grave y que en el transcurso de dicho ingreso se le diagnosticó un fallo renal agudo, según los siguientes criterios: disminución del volumen de orina por debajo de 500 ml/24 horas y/o incremento de la creatinemia superior a 0,5 mg/dl (44 micromoles/l) por encima de su valor normal en menos de 24 horas. Existió predominio en el grupo de edades por encima de los 46 años, haciéndose más evidente por encima de los 75. Las causas de falla renal aguda más frecuentes fueron la hipovolemia absoluta y la disminución del volumen circulatorio efectivo. El tipo de insuficiencia renal aguda que más se reportó fue la hiperazoemia prerenal, siendo las infecciones, los trastornos hidroelectrolíticos, la hipertensión arterial y las arritmias cardíacas las complicaciones más frecuentemente encontradas. La modalidad terapéutica que más se aplicó fue el tratamiento conservador. DeCS: EPIDEMIOLOGÍA, INSUFICIENCIA RENAL AGUDA.ABSTRACT A retrospective, longitudinal and descriptive study is carried out to determine clinical and epidemiological features of acute renal failure at Abel Santamaría University Hospital Intermediate Health Care Unit, from January 1st 2002 to December 31st 2002. The whole patient group comprised 3015 patients admitted at Intermediate Health Care Unit during the above mentioned period. The overall sample finally consisted of 363 patients with acute renal failure after admission at the Unit, this representing 12 %. Patients admitted at Intermediate Health Care Unit with serious health conditions were included and throughout the admission period they were found to present acute renal failure, according to the following criteria: decrease in urine volume below 500 ml/24 hours and/or increase in creatinemia above 0.5 mg/dl (44 micromols/l) over its normal value in less than 24 hours. The age group over 46 years of age prevailed, more evidently over 75. The most frequent acute renal failure causes were associated with absolute hypovolemia and a decrease in the effective circulatory volume. They type of acute renal failure mostly reported was pre - renal hyperazotemia, where infections, hydroelectric disorders, hypertension and cardiac arrhythmias were most often found. The most applied therapeutic modality was the conservative treatment. DeCS: EPIDEMIOLOGY, KIDNEY FAILURE, ACUTE

A study of the dry forest communities in the Dominican Republic

This paper is a floristic and phytosociological study of the dry forest communities of the Dominican Republic. A total of 69 relevés in dry forest biotopes were carried out. The samples were subsequently subjected to Detrended Correspondence Analysis for the determination and study of possible groupings. The study does not cover tree formations growing on serpentines, nor the so-called semideciduous forests, peculiar to areas with higher rainfall. A total of nine phytocoenoses were identified. The most significant results led to the description of six new phytosociological associations: Simaroubetum berteroani (thorny dry forest on coastal dunes), Phyllostylo rhamnoidis-Prosopidetum juliflorae (southern Dominican disturbed dry forest), Consoleo moniliformis-Camerarietum linearifoliae (dry forest on hard limestones), Lemaireocereo hystricis-Prosopidetum juliflorae (northern Dominican disturbed dry forest), Lycio americani-Prosopidetum juliflorae (disturbed dry forest on saline soils) and Guettardo ellipticae-Guapiretum discoloris (dry forest on flat-topped hillocks in Montecristi). This is an important step forward in the phytosociological and floristic studies of the Caribbean territories.Este trabalho apresenta um estudo florístico e fitossociológico das comunidades de florestas secas da República Dominicana. Um total de 69 amostras foram obtidas pelo método relevé em biótopos florestais secos. As amostras foram posteriormente submetidas à análise de correspondência destendenciada para a determinação e estudo de possíveis agrupamentos. O estudo não abrange formações arbóreas desenvolvidas sobre serpentinitos, nem as chamadas florestas semideciduais, peculiares às áreas de maior pluviosidade. Foram identificados nove fitocenoses. Os resultados mais significativos levaram à descrição de seis novas associações fitossociológicas: Simaroubetum berteroani (floresta espinhosa seca em dunas costeiras), Phyllostylo rhamnoidis-Prosopidetum juliflorae (floresta seca perturbada do sul da República Dominicana), Consoleo moniliformis-Camerarietum linearifoliae (floresta seca sobre calcários compactos), Lemaireocereo hystricis-Prosopidetum juliflorae (floresta seca perturbada do norte da República Dominicana), Lycio americani-Prosopidetum juliflorae (floresta seca perturbada desenvolvida em solos salinos) Guettardo ellipticae-Guapiretum discoloris (floresta seca em colinas de topo achatado em Montecristi). O trabalho realizado representa um importante avanço nos estudos fitossociológicos e florísticos dos territórios do Caribe.This research paper was possible thanks to the sponsorship of the Agencia Española de Cooperación Internacional para el Desarrollo (AECID), under the auspices of the Ministerio de Asuntos Exteriores y de Cooperación de España, which funded the project (cod. A/3499/05)