117 research outputs found
Anti-Social Realism
Work included in a group exhibition at Charlie Smith Gallery, London curated by Juan Bolivar and John Stark. Exhibting artists include: Juan Bolivar, Dan Coombs, Graham Crowley, Karen David, Nathan Eastwood, Geraint Evans, John Greenwood, Sigrid Holmwood, Kate Lyddon, Maharishi x Rebecca & Mike, John Salt, John Stark.
The term 'Anti-Social Realism', which acts as this exhibitions title, is not one that is commonly understood. It is intended to pose questions such as: is 'revolutionary' art a viable possibility today? What does it mean to be (anti) social in an increasingly interconnected but physically separated society? Can we, through archaic practices such as painting and sculpture, engage with notions of 'social realism’ now presented on a daily basis through the new silver-screen veneer of the digital age?
In response, this exhibition attempts to pose pictorial possibilities and create tensions through the selected artworks, tackling notions of contemporary realism and in turn offering us a distant echo of a political reality. The wry misnomer of the exhibition title slips between many interwoven threads, simultaneously conjuring up images of 'anti-social behaviour orders' (ASBO), anarchist riots, or the solitary artist locked away from the world attempting to connect on a higher level. In this light, the exhibiting artists are presented as 'social mystics' and it could be said that their work operates by a means of turning inwards to create social radiation
Enhanced hydrogenation catalyst synthesized by Desulfovibrio desulfuricans exposed to a radio frequency magnetic field
EPSRC (EP/I007806/1; EP/D05768X/1), BBSRC (BB/
C516128/1), NERC (NE/L014076/1), The Royal Society
(Industrial Fellowship) and Spanish Government Sistema
Nacional de Garantia Juvenil grant PEJ-2014-P-00391.This work was supported by EPSRC (grants No EP/
I007806/1 and EP/D05768X/1), BBSRC (grant No BB/
C516128/1), NERC (grant NE/L014076/1) and by a
Royal Society Industrial Fellowship to LEM for secondment
into C-Tech Innovation Ltd., who provided the
bespoke apparatus used in this work. We acknowledge
the invaluable contributions of the late Dr Ruth Wroe of
C-Tech Innovation Ltd. into useful discussions and the
kind permission of Drs S. Megit, C. Berry and A. Morby
(University of Cardiff, UK) to show their unpublished
work in Supplementary Information. This work was partially
supported by the Spanish Government Sistema
Nacional de Garantia Juvenil Grant PEJ-2014-P- 00391
(Promocion de Empleo Joven e Implantacion de la
Garantia Juvenil 2014, MINECO) with a scholarship to
JGB. We also thank the EM Centre at U. Granada for
access to high-resolution electron microscopy (in Fig. S2
and S3). All authors declare no competing interests.Desulfovibrio desulfuricans reduces Pd(II) to Pd(0)-nanoparticles (Pd-NPs) which are catalytically active in 2-pentyne hydrogenation. To make Pd-NPs, resting cells are challenged with Pd(II) ions (uptake), followed by addition of electron donor to promote bioreduction of cell-bound Pd(II) to Pd(0) (bio-Pd). Application of radiofrequency (RF) radiation to prepared 5 wt% bio-Pd catalyst (60 W power, 60 min) increased the hydrogenation rate by 70% with no adverse impact on selectivity to cis-2-pentene. Such treatment of a 5 wt% Pd/carbon commercial catalyst did not affect the conversion rate but reduced the selectivity. Lower-dose RF radiation (2-8 W power, 20 min) was applied to the bacteria at various stages before and during synthesis of the bio-scaffolded Pd-NPs. The reaction rate (mu mol 2-pentyne converted s(-1)) was increased by similar to threefold by treatment during bacterial catalyst synthesis. Application of RF radiation (2 or 4 W power) to resting cells prior to Pd(II) exposure affected the catalyst made subsequently, increasing the reaction rate by 50% as compared to untreated cells, while nearly doubling selectivity for cis 2-pentene. The results are discussed with respect to published and related work which shows altered dispersion of the Pd-NPs made following or during RF exposure.UK Research & Innovation (UKRI)
Engineering & Physical Sciences Research Council (EPSRC) EP/I007806/1
EP/D05768X/1UK Research & Innovation (UKRI)
Biotechnology and Biological Sciences Research Council (BBSRC) BB/C516128/1UK Research & Innovation (UKRI)Natural Environment Research Council (NERC) NE/L014076/1Royal Society of London
European CommissionSpanish Government Sistema Nacional de Garantia Juvenil grant PEJ-2014-P-0039
Redefinition of the identity and phylogenetic position of Tityus trivittatus Kraepelin 1898, and description of Tityus carrilloi n. sp. (Scorpiones; Buthidae), the most medically important scorpion of southern South America
Redefinición de la identidad y posición filogenética de Tityus trivittatus Kraepelin 1898, y descripción de Tityus carrilloi n. sp. (Scorpiones; Buthidae), la especie de mayor importancia médica del sur de Sudamérica. Tityus trivittatus es considerada la especie de escorpión de mayor importancia médica en el sur de Sudamérica. En este trabajo redefinimos su taxonomía, redescribimos esta especie y separamos las poblaciones meridionales como una nueva especie Tityus carrilloi n. sp. Como consecuencia de esta descripción, la especie de mayor importancia médica de la región es la especie que describimos aquí. Establecemos además claramente la posición filogenética de ambas especies a través de una filogenia molecular datada basada en cuatro genes. Finalmente discutimos las diferencias del veneno entre ambas especies y las implicaciones epidemiológicas de nuestros resultados sobre el problema del escorpionismo en la región.Tityus trivittatus is considered the most medically important scorpion species of southern South America. In this contribution we redefine its taxonomy, redescribe the species and separate the southern popula tions as a new species, Tityus carrilloi n. sp. As a consequence of this description, the most medically important species of the region turns out to be the new species herein described. We also clearly establish the phylogenetic position of both species through a dated molecular phylogenetic analysis based on four genes. Finally, we discuss the differences of the venom between the two species, and the epidemiologic implications of our results on the scorpionism problem in the region.Fil: Ojanguren Affilastro, Andres Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". Departamento de Invertebrados. Area de Entomologia; ArgentinaFil: Kochalka, John. Museo Nacional de Historia Natural de Paraguay; ParaguayFil: Guerrero Orellana, David Jesús. Museo Nacional de Historia Natural; ParaguayFil: Garcete Barrett, Bolivar Rafael. Museo Nacional de Historia Natural; ParaguayFil: de Roodt, Adolfo Rafael. Ministerio de Salud de la Nación. Dirección Nacional de Institutos de Investigación. Administración Nacional de Laboratorios e Institutos de Salud "Doctor Carlos G. Malbrán". Instituto Nacional de Producción de Biológicos; ArgentinaFil: Borges, Adolfo. Centro para el Desarrollo de la Investigación Científica; ParaguayFil: Ceccarelli, Fadia Sara. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Consejo Nacional de Ciencia y Tecnología de México. Centro de Investigación Científica y de Educación Superior de Ensenada Baja California; Méxic
Relaciones de poder en un escenario educativo I.E.D. Almirante Padilla, jornada fin de semana, localidad de Usme, Bogotá-Colombia
Biosynthesis of zinc sulfide quantum dots using waste off-gas from a metal bioremediation process
Waste H2S biogas from a mine-water remediation bioprocess is used to make zinc sulfide quantum dots which are identical to ZnS QDs made by chemical methods.</p
Calidad en las empresas del sector educación posgrado peruano
La presente investigación ha tenido como objetivo la identificación del nivel de
cumplimiento de los factores de éxito de la Administración de la Calidad Total (ACT) así
como identificar la situación actual interna en el sector educación posgrado en el Perú. Para
llevarla a cabo, se utilizó la metodología de los nueve factores de Administración de Calidad
Total de las empresas peruanas, que se encuentran en el estudio de Benzaquen (2013). Se
tomó una encuesta de 35 preguntas al total de la población de las instituciones universitarias
de posgrado peruanas. La muestra se estimó en 48 instituciones de posgrado, y sirvió para
identificar cual era el nivel de cumplimiento de los factores de éxito de Administración de
Calidad Total en el sector educación posgrado peruano. El estudio alcanzó a identificar el
nivel de cumplimiento de los factores de éxito de la ACT en el sector educación posgrado en
el Perú. Esta investigación fue descriptiva y los resultados del estudio indican un nivel de
ACT de 3.57, indicando el nivel de calidad existente en las instituciones educativas de
posgrado en el Perú.The following research aims to the identification of the compliance levels of the
success factors in the Total Quality Management (TQM) and identification of internal present
situation in the graduate education sector in Peru. In order to do this, the nine factors of
Peruvian companies’ Total Quality Management have been used, which are found in the
Benzaquen study (2013). A survey with thirty five questions was applied to the total of the
population of the Peruvian graduate schools. This sample was estimated in the forty eight
graduate school institutions, and was useful to identify the achievement of the Total Quality
Management success factors in the Peruvian graduate education field. The study was able to
identify the success factors of the TQM in the Peruvian graduate education field. This has
been a descriptive research and the results of the study indicate a 3.57 level of the TQM,
which identifies the quality level in the graduate educational institutions in Peru.Tesi
Chromosomal and SRY gene findings by FISH in patients with disorders of sexual development
Objetivo: Los trastornos del desarrollo sexual son un grupo de enfermedades congénitas que afectan la formación normal de los genitales. Dentro los mecanismos fisiopatológicos descritos existen factores genéticos causados por alteraciones cromosómicas o en los genes determinantes en la diferenciación sexual. En este trabajo se analizaron alteraciones cromosómicas y en el gen SRY como posible causa del trastorno. Se realizó cariotipo con bandas G o R y FISH para SRY en linfocitos, tejido gonadal y tejido escrotal. Materiales y métodos: La información clínica de los sujetos de investigación se obtuvo de los informes de los médicos tratantes. En 9 (73%) casos el sexo asignado fue masculino y en 3 (27%) casos fue femenino. 8 de los casos (66%) tuvieron cariotipo 46,XY; 2 casos (17%) 46,XX y en 2 casos (17%) se reportaron mosaicos con presencia de idic(Y). Un solo caso de tejido gonadal mostró mosaicismo debido a la presencia de una línea celular tetraploide. El diagnóstico clínico más frecuente fue de genitales ambiguos en 8 casos (67%). Seguido de hipospadias en 5 casos (41,7%). Conclusiones: Los resultados muestran la importancia de aplicar diferentes pruebas citogenéticas en el diagnóstico y la necesidad del seguimiento de los pacientes por un equipo transdisciplinario para abordar estas condiciones clínicas.Q4Pacientes diagnosticados con trastornos del desarrollo sexualObjective:
Disorders of sexual development are a group of congenital diseases that affect the normal formation of genital structures. Within the pathophysiologic mechanisms described, there are genetic factors caused by chromosomal or sex-determining gene alterations. Therefore, chromosomal analysis is an essential priority in the diagnostic approach. Alterations in the chromosomes and the SRY gene as a cause of disorder of sexual development was analyzed herein.
Material and methods:
G or R-banding karyotype and FISH analyses for the SRY gene were performed in lymphocytes, gonadal tissue, and scrotal tissue in twelve cases, three cases, and one case, respectively. The clinical information was obtained from the patients’ medical reports.
Results:
In 9 (73%) cases, the assigned sex was male, and in 3 (27%) cases, it was female. Karyotype 46,XY was found in 8 (66%) cases, 46,XX in 2 (17%) cases, and mosaic karyotype in 2 (17%) cases with idic(Y). A single case of gonadal tissue showed mosaicism due to the presence of a tetraploid cell line. The most common clinical diagnosis was abnormal genital differentiation in 8 (67%) cases, followed by hypospadias in 5 (41.7%) cases.
Conclusions:
The results show the importance of applying different cytogenetic tests in making the diagnosis, and the need for a multidisciplinary team to address the disorder.https://orcid.org/0000-0001-7501-7307https://orcid.org/0000-0002-0729-6866https://orcid.org/0000-0002-1421-3619https://orcid.org/0000-0001-6336-5347https://orcid.org/0000-0001-8528-4433https://orcid.org/0000-0002-2231-4321https://orcid.org/0000-0002-7856-7213https://orcid.org/0000-0003-2241-7854https://orcid.org/0000-0002-9675-5963https://orcid.org/0000-0001-5685-8354https://orcid.org/0000-0002-0826-6191Revista Internacional - IndexadaCN
Surgical treatment of benign prostatic hyperplasia: A literature review
Introducción: La hiperplasia prostática benigna HPB es una patología prevalente. Dependiendo de la severidad del tracto urinario bajo se define la necesidad del manejo médico o quirúrgico, el cual tiene como patrón de oro, la resección transuretral de la próstata por sistema bipolar TURP-B Objetivo: Determinar el estado actual de las diferentes técnicas quirúrgicas para comparar su eficacia y seguridad en el tratamiento de hiperplasia prostática benigna.
Métodos. Se realizó una busqueda en cinco bases de datos PUBMED, Embase, Lilacs, Science Direct y Greynet. Se evaluaron metaanálisis, revisiones sistemáticas y ensayos clínicos aleatorizados determinando la eficacia y seguridad de las técnicas quirúrgicas para el tratamiento de HPB entre los años 2006 al año 2016.
Resultados: A partir de 2505 artículos escogidos por título y resumen, 94 artículos fueron escogidos para revisión del texto completo. Se encontraron diferentes técnicas quirúrgicas; TURP por método monopolar o bipolar, prostatectomía abierta, vaporización del plasma, técnicas laser, técnicas ablativas mínimamente invasivas. La mayoría de los artículos compara TURP-B (patrón de oro) vs otros métodos quirúrgicos; enfocándose en desenlaces clínicos basados en escalas de IPSS score, Qmax, PVR y QoL; Observándose resultados similares entre todas las técnicas.
Conclusiones: TURP-B es la técnica más practicada para el manejo de HPB, con buenos resultados en comparación con TURP-M. Resultados similares entre TURP-B con HoLEP, ThuLEP, Greenlight láser, TUMT. La decisión de la técnica quirúrgica será elegida según la experticia del cirujano y las características de cada paciente. Los resultados aquí presentados son heterogéneos y hacen necesario mayor investigación.Q4Pacientes con Hiperplasia prostática benignaBackground: Benign prostatic hyperplasia is a prevalent pathology. The need for medical or surgical treatment depends on the severity of the lower urinary tract symptoms. The gold standard for surgical treatment is bipolar transure-thral resection of the prostate (b-turp). Objective: To evaluate the different surgical techniques, comparing their effi-cacy and safety in the treatment of benign prostatic hyperplasia.Methods: A narrative review of the literature was carried out through a search of five databases: PubMed, Embase, Lilacs, Science Direct, and GreyNet. Me-ta-analyses, systematic reviews, and randomized clinical trials published from 2006 to 2016 were evaluated to determine the efficacy and safety of the surgi-cal techniques for the treatment of benign prostatic hyperplasia.Results: A total of 2505 articles were selected by title and abstract and the complete texts of 94 of those articles were reviewed. The different surgical techniques encountered were monopolar turp, bipolar turp, open prostatec-tomy, plasma vaporization, laser techniques, and minimally invasive ablation techniques. The majority of the articles compared bipolar turp (the gold stan-dard) vs other surgical methods, focusing on clinical outcomes based on the ipss, qmax, pvr, and qoL instruments. The results were similar among all the techniques.Conclusions:Bipolar turp is the most widely practiced technique for benign prostatic hyperplasia management and has good results, compared with mono-polar turp. Results are similar between the bipolar turp, holep, thulep, Green-light laser, and tumt modalities. The choice of surgical technique is dependent on the expertise of the surgeon and the characteristics of each patient. The re-sults of the present review are heterogeneous, making further study necessary.https://orcid.org/0000-0002-5895-3029https://orcid.org/0000-0001-5685-8354https://orcid.org/0000-0003-4787-1228https://orcid.org/0000-0002-8547-9182https://orcid.org/0000-0003-2633-6971Revista Internacional - IndexadaCN
Bio-Based Fire Retardant for Coco Lumber using Aloe barbadensis miller (Aloe Vera), Mangifera indica (Mango), or Persea americana (Avocado) and Boron Additives
Accidental fires are prevalent in low-income communities and one of the solutions to decrease fire risk is to apply fire retardants on combustible materials. While extensive research was available in creating fire retardants with inorganic chemicals, further studies are needed for bio-based fire retardants. The development of bio-based fire retardants involves testing organic matter for the presence of fire-retardant compounds such as nitrogen, phosphorus, and polyphenols. This study sought to determine the effectiveness of the peels of Aloe barbadensis miller (aloe vera), Mangifera indica (mangoes), and Persea americana (avocados) in creating bio-based fire retardants for coco lumber. Maceration was used to get the fruit and plant extracts. Boric acid and borax were also added as additives to boost fire retarding properties. The burning behavior of the lumber was observed in a modified horizontal flammability test and a modified flame spread test and measured in terms of mass loss, smoke density, char yield, and charring rate. The results revealed that among the fruits, the mango-based fire-retardant inhibited mass loss the most (M = 0.006, SD = 0.003), while the avocado-based fire-retardant inhibited smoke the most (M = 0.036, SD = 0.016). No significant difference was found among the groups as determined by One-way ANOVA and MANOVA (p \u3e 0.05). An indirect relationship was found between smoke density and char yield, which may be examined to improve the smoke suppressing ability of commercial fire retardants. Future studies may also refine the plant extracts and use standard flammability tests
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