bluuebunny/crossref_metadata_2025 huggingface dataset:
Inflammatory Fibroid Polyp of the Small Intestine: A Case Report and Systematic Literature Review
Authors: Ivaniš Nikola , Tomas Vera , Vranić Luka , Lovasić Franjo , Ivaniš Viktor , Žulj Marinko , Šuke Ramadan , Štimac Davor
Published: August 2020

Aim: Starting from a case presentation, this review aims to present literature data on inflammatory fibroid polyps (IFPs) of the small intestine.

Methods: Case report and systematic review. A comprehensive systematic review of English literature using PubMed was conducted, based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The used key words were: “inflammatory fibroid polyp” or “Vanek”, including only cases with IFPs localized of the small intestine, published from 1976 to 2019.

Results: We present a case of a 38-year old patient with intestinal IFP presenting with acute abdomen due to intussusception diagnosed with ultrasound (US) based on a target sign and visible solid tumor in the small intestine leading to prompt surgical treatment. A diagnosis of IFP was made based on the pathohistological findings. Moreover, a systematic review of small intestine IFPs was conducted which is, to our knowledge, the first comprehensive systematic literature review on this topic. The analysis included 53 case reports or case series concerning 77 cases of small bowel IFPs. The patients were aged from 4 to 75 years (average 45.2), with a female predominance (59.7%). The most common localization was the ileum in 77.9% cases, followed by the jejunum (13%) and the duodenum (6.5%). The most common clinical presentation was abdominal pain due to intussusception (63.6%). Regarding diagnostic methods, computed tomography (CT) was frequently used as primary diagnostic method (26%) followed by exploratory laparotomy (16.9%), endoscopy (7.8%) and US (6.5%). Combination of US and CT contributed to the diagnosis in 9.1% of cases. The majority of cases were treated surgically (92.21%), while only a minority benefited of minimally invasive techniques such as endoscopy.

Conclusions: Small bowel IFPs, ones of the least common benign tumors, are characterized by variable clinical signs and symptoms and can potentially lead to serious consequences for the patient.
Over-the-scope clip closure indicated as first- line therapy for iatrogenic rectal perforation
Authors: Yachida Tatsuo , Kobara Hideki , Nishiyama Noriko , Takata Tadayuki , Masugata Hisashi , Masaki Tsutomu
Published: August 2020

n/a
Telehealth Home Monitoring and Postcardiac Surgery for Congenital Heart Disease
Authors: Medoff Cooper Barbara , Marino Bradley S. , Fleck Desiree A. , Lisanti Amy Jo , Golfenshtein Nadya , Ravishankar Chitra , Costello John M. , Huang Liming , Hanlon Alexandra L. , Curley Martha A.Q.
Published: August 2020

OBJECTIVES:

To test the effect of a 4-month telehealth home monitoring program (REACH), layered on usual care, on postdischarge outcomes in parents of infants recovering from cardiac surgery and their infants.

METHODS:

Randomized trial of infants discharged from the hospital after cardiac surgery for congenital heart disease. Consecutive infants with complex congenital heart disease undergoing cardiac surgery within 21 days of life were enrolled at 3 university-affiliated pediatric cardiac centers.

RESULTS:

From 2012 to 2016, 219 parent-infant dyads were enrolled; 109 were randomly assigned to the intervention group and 110 to the control group. At 4 months postdischarge, parenting stress was not significantly different between groups (total Parenting Stress Index in the intervention group was 220 and in the control group was 215; P = .61). The percentages of parents who met posttraumatic stress disorder (PTSD) criteria and parent quality of life inventory scores were also not significantly different between the 2 groups (PTSD in the intervention group was 18% and was 18% in the control group; P =.56; the mean Ulm Quality of Life Inventory for Parents in the intervention group was 71 andwas 70 in the control group; P = .88). Infant growth in both groups was suboptimal (the mean weight-for-age z scores were −1.1 in the intervention group and −1.2 in the control group; P = .56), and more infants in the intervention group were readmitted to the hospital (66% in the intervention group versus 57% in the control group; P < .001).

CONCLUSIONS:

When added to usual care, the REACH intervention was not associated with an improvement in parent or infant outcomes. Four months after neonatal heart surgery, ∼20% of parents demonstrate PTSD symptoms. Suboptimal infant growth and hospital readmissions were common.
Representaciones sociales de la norma de sostenibilidad en MiPymes de alojamiento en Colombia
Authors: Serrano-Amado Ana Milena , Amado-Cely Nidia Paola , Rodríguez Miryam Teresa
Published: August 2020

La baja implementación de la norma sobre sostenibilidad turística colombiana (NTS-TS 002/2014), deja en desventaja a las Pequeñas y medianas empresas MiPymes del sector turístico. El objetivo de este trabajo es indagar la baja certificación de los establecimientos de hospedaje en la provincia de Sugamuxi a través de las representaciones sociales de propietarios, entidades que diseñaron la norma y un grupo focal integrando por actores como empresas y Estado. Se detectó que la “comunicación” es la palabra más resaltada dentro de la nube de palabras dentro de las preocupaciones que tienen los empresarios para la implementación de la norma. Adicionalmente, se percibe un rechazo puesto que algunos empresarios no tienen claro los beneficios económicos, sociales y de crecimiento con la implementación de la certificación.
Geoindicadores aplicados al estudio de los efectos ambientales de la explotación de oro aluvial en la cuenca baja del río Quito, Chocó (Colombia)
Authors: Gaviria Sergio , Angel-Amaya Jennifer
Published: August 2020

Se realizó la formulación y evaluación preliminar de geoindicadores físicos, químicos y mineralógicos en la cuenca del río Quito, localizada en el Chocó Biogeográfico, una de las regiones más húmedas y biodiversas del planeta. El objeto del estudio consistió en reconocer los cambios inducidos por la minería ilegal de oro de aluvión sobre el medio natural, por medio de la caracterización de sedimentos, suelos y aguas. Los minerales y los productos de meteorización, que se liberan junto con el oro durante la extracción, podrían actuar como vehículos para el transporte de metales potencialmente tóxicos, entre ellos el mercurio, en el medio acuoso. En este trabajo se identificaron los minerales que componen los sedimentos activos, los suelos y los materiales en suspensión en las zonas afectadas por minería ilegal de oro, base para entender la movilidad de los metales en el sistema hidrológico. Las actividades extractivas afectan los suelos y sedimentos en las terrazas aluviales, generando erosión y aumento del transporte de sedimentos; modificando el funcionamiento del sistema hídrico, abatiendo el nivel freático y en consecuencia generando nuevas zonas de oxidación que aumentan la intensidad de la alteración, tanto de los minerales primarios como de las arcillas, disminuyendo la cristalinidad de las últimas. En este proceso se liberan hierro y aluminio, y en menor proporción sulfatos y metales. El aumento en la acidez en el medio acuoso produce agregación de coloides en los suelos y floculación de arcillas, que forman pseudo-partículas de tamaño limo. Los cambios inducidos por la actividad extractiva se observan tanto en cortos periodos, como años después del cese de la intervención extractiva, sin embargo, factores como la alta pluviosidad pueden diluir los efectos químicos y dificultar su detección. Se plantea el empleo de geoindicadores para el monitoreo de los procesos fisicoquímicos en aguas y sólidos suspendidos que viajan por el río como consecuencia de la extracción de oro aluvial. La meta es que los resultados del monitoreo, a mediano plazo, sirvan de base para proponer medidas de prevención y de mitigación de los impactos ambientales entendiendo la dinámica geoquímica natural de estos geoecosistemas, con la sobreimposición de los efectos de las actividades extractivas.
Generación, reciclaje y disposición final de los principales residuos en México, 2000-2014
Authors: Ortiz-Pech Rafael , Burgos-Suárez Lucelly Carolina , Rivera-de la Rosa Alba Rosa
Published: August 2020

Este trabajo analiza el comportamiento de los residuos en México para el periodo 2000-2014 considerando sus tres vertientes: generación, tratamiento o reciclaje y disposición final. La generación de residuos por persona en México es uno de los más altos en América Latina por lo que es prioritario tomar medidas en beneficio del medio ambiente y la salud de los habitantes. Se utilizó información estadística de fuentes oficiales del Instituto Nacional de Estadística y Geografía y de la Secretaría de Medio Ambiente y Recursos Naturales para diversos tipos de residuos, es analizada la tendencia de reciclaje usando un modelo de regresión lineal. Los resultados muestran que la generación ha sido creciente para la mayoría de los residuos; sin embargo, su tratamiento (reciclaje) permanece relativamente bajo lo que provoca mala disposición final; de modo que es necesario aumentar el reciclaje y ejercer programas para cuantificar adecuadamente los residuos, así como incursionar en educación ambiental.
Aproximación preliminar a un índice multimétrico de macroinvertebrados (IMARBO) para evaluar el estado ecológico de ríos de las cuencas alta y media del río Chicamocha en Boyacá, Colombia
Authors: Vera-Sánchez Daniel-Alexander , Pinilla-Agudelo Gabriel A.
Published: August 2020

Se desarrolló una propuesta preliminar de un Índice Multimétrio de Macroinvertebrados para Ríos del Departamento de Boyacá (IMARBO) con el fin de valorar el estado ecológico de cinco ríos y quebradas de las cuencas alta y media del río Chicamocha. Se caracterizaron parámetros fisicoquímicos y biológicos de la comunidad de macroinvertebrados acuáticos en tres tramos de referencia y nueve estaciones con diferente grado de alteración por deforestación, modificación de hábitats y vertimientos domésticos e industriales. El gradiente de estrés ambiental se estableció mediante un análisis de componentes principales (ACP) y correlaciones bivariadas. Se calcularon 21 métricas de la comunidad de macroinvertebrados, de las cuales se seleccionaron seis para la conformación del IMARBO mediante correlaciones con el gradiente ambiental. Para las métricas seleccionadas se calculó su Eficiencia Discriminativa (ED) entre estaciones de referencia y perturbadas. El índice incluyó la riqueza de familias de Ephemeroptera, Plecoptera y Trichoptera (EPT), el % de riqueza de Ephemeroptera, el % de riqueza de Plecoptera, la abundancia total de individuos, el % de abundancia de Filtradores y el índice BMWP/Col. Con los valores de los percentiles de las métricas en los tramos de referencia se elaboraron las escalas de integridad biótica y de calidad ecológica de los ríos estudiados, las cuales se validaron preliminarmente con una base de datos independiente en una cuenca cercana a la estudiada. El índice propuesto constituye una aproximación preliminar que requerirá futuras comprobaciones a través de un mayor número de datos. Sin embargo, los resultados permitieron diferenciar con claridad los ríos menos contaminados y con una integridad biótica alta (Gámeza y Monguí) de aquellos fuertemente deteriorados y cuyas comunidades de macroinvertebrados presentan muy baja integridad biótica (Chicamocha, Malsitio, Nobsas). De esta manera, el IMARBO podría convertirse en una herramienta útil para la gestión ambiental de los ríos de la región.
A COVID–19-pandémia hatása az akut ischaemiás stroke ellátásra. A járulékos egészségügyi veszteségek retrospektív, egycentrumos felmérése (A COVID–19-pandémia orvosszakmai kérdései)
Authors: Böjti Péter Pál , Stang Rita , Gunda Bence , Sipos Ildikó , Bereczki Dániel
Published: August 2020

Absztrakt:

Bevezetés: A korai nemzetközi adatok szerint a COVID–19-pandémia
alatt az akut ischaemiás stroke miatti intézményi felvételek száma csökkent, és
a kezelésig eltelt idő megnőtt. Célkitűzés: Azt vizsgáltuk,
hogy a COVID–19-pandémia a magyarországi akut ischaemiás stroke ellátásra is
hatással volt-e. Módszer: A járvány által érintett, 2020. 03.
01. és 2020. 04. 30. közötti időszakban egy egyetemi stroke-centrumban akut
ischaemiás stroke miatt felvettek adatait hasonlítottuk 2019 azonos
periódusához. A demográfiai és klinikai jellemzők mellett elemeztük az
intravénás és az endovascularis kezelések arányát és az ellátás időbeli
mutatóit. Eredmények: A COVID-időszakban 86, a
kontrollidőszakban 97 akut ischaemiás stroke beteget láttunk el. A két időszak a
demográfiai és a klinikai jellemzők szempontjából kiegyensúlyozott volt. A
járvány alatt az endovascularis kezelések aránya nem változott (8%), az
intravénás thrombolysisek aránya 26%-ról 16%-ra csökkent. A COVID-időszakban a
stroke kezdetétől az intravénás kezelés megkezdéséig eltelt idő átlagosan 20
perccel nőtt, míg a kórházba érkezéstől a kezelésig eltelt idő átlagosan csak 5
perccel növekedett. A járvány alatt a 24 órán túl érkezettek aránya 13%-kal
növekedett (p = 0,046). A beérkezési időkategóriák közötti átrendeződésben a
többváltozós (vizsgálat éve, NIHSS, életkor) logisztikus regresszió alapján
leginkább a vizsgálat évének (p = 0,096) lehet szerepe.
Következtetések: A COVID-időszakban akut ischaemiás stroke
miatt felvettek száma 11%-kal csökkent, a reperfúziós kezeléssel biztosan nem
kezelhető, 24 órán túl érkező esetek aránya szignifikánsan növekedett. Míg az
endovascularis beavatkozások aránya nem változott, az intravénás thrombolysisek
abszolút aránya 10%-kal csökkent, és az intravénás kezelésig eltelt idő
tendenciaszerűen megnőtt. Ezekben a változásokban magának a COVID–19-járványnak
és a hozzá kapcsolódó kórházi ellátáson kívüli faktoroknak lehet a legnagyobb
szerepükOrv Hetil. 2020; 161(34): 1395–1399.
First report on the anuran fauna of Hai Ha forest, Quang Ninh Province, Vietnam
Authors: Pham Cuong The , Do Quyen Hanh , Ngo Hai Ngoc , Tran Tung Thanh , Ziegler Thomas , Nguyen Truong
Published: August 2020

Two field surveys were conducted in the Hai Ha forest, Quang Ninh Province, northeastern Vietnam in 2015 and 2016. Based on mophological examinations, we provide the first list of 27 anuran species from this area. Ten species are recorded for the first time from Quang Ninh Province. The anuran fauna of Hai Ha District also contains one species listed in the IUCN Red List as Vulnerable, two species listed in the Red Data Book of Vietnam as Endangered, and two other species endemic to Vietnam (Limnonectes quangninhensis and Quasipaa acanthophora).
KEBIJAKAN PENGEMBANGAN SUMBER DAYA PERIKANAN BERKELANJUTAN DAN BERPERSPEKTIF MITIGASI BENCANA DI PADANG SUMATERA BARAT
Authors: Ramadona Tomi , Kusumastanto Tridoyo , Fahrudin Achmad
Published: August 2020

Penelitian yang bertujuan untuk merumuskan arahan kebijakan pengembangan sumber daya perikanan yang berkelanjutan dan berperspektif mitigasi bencana telah dilakukan di Kota Padang Tahun 2012. Metode penelitian menggunakan pendekatan sensus. Data yang dikumpulkan terdiri dari data primer dan skunder. Pengambilan data dilakukan secara purposive sampling. Responden terdiri dari nelayan yang mendaratkan ikan di Pelabuhan Perikanan Samudera (PPS) Bungus dengan komoditas tuna. Metode analisis data menggunakan analisis bioekonomi, kelayakan investasi, Analytical Hierarchy Process (AHP) dan analisis kelembagaan. Hasil penelitian menunjukkan bahwa sub-sektor perikanan memberikan pengaruh cukup besar bagi perekonomian Kota Padang. Pemanfaatan sumber daya tuna masih berada dibawah optimalnya. Pengelolaan optimal tuna dengan menggunakan rezim pengelolaan Maximum Equilibrium Yied (MEY) dengan discount rate sebesar 16% yaitu dengan meningkatkan upaya sebesar 133 trip dan produksi sebesar 418,53 ton. Potensi bencana terbesar di Padang yang berdampak pada perikanan yaitu gempa bumi. Dari hasil penelitian tersebut menunjukkan bahwa arahan kebijakan yang tepat untuk diterapkan di Kota Padang yaitu mengembangkan sarana dan prasarana perikanan yang berperspektif mitigasi bencana dengan mempertimbangkan karakteristik masyarakat lokal dan kondisi daerah serta meningkatkan partisipasi pemangku kepentingan dalam rangka optimasi produktivitas perikanan yang berkelanjutan. Title: Development Policies for Sustainable Fishery Resources with Disaster Mitigation Prespective in Padang, West Sumatra Research purposed to formulate the orientation of policy of sustainable fishery resources development with disaster mitigation perspective has been conducted in 2012. Method of the study was census approach. Data consists of primary and secondary data. Data were collected by purposive sampling. Respondents were fishers who landed their fishes at the Ocean Fishing Port (PPS) Bungus with tuna commodity. Analysis data method employs bio-economy analysis of investment feasibility, Analytical Hierarchy Process (AHP), and institutional analysis. Results showed that fishery sub-sector gave significant impact for the economy of Padang City. Utilization of tuna resource was still under its optimum value. Optimum tuna management using Maximum Equilibrium Yield (MEY) management regime with rate discount 16% was done by increasing effort to 133 trips and production to 418,53 tons. Most potential disaster in Padang influencing fishery sector was earthquake. Research showed that proper policy implemented in Padang was to develop fishery infrastructure with disaster mitigation perspective by considering local society characteristics and regional condition as well as by increasing stakeholder participation in order to optimize sustainable fishery productivity
Las Redes Sociales y el Consumismo: Del futuro colectivo al algoritmo de Facebook
Authors: Arellanes Juárez Nuria , Iñigo Dehud Laura Silvia
Published: August 2020

La pérdida de seguridad y garantías que otorgaba un Estado benefactor fueron absorbidos por un mercado voraz que pregona por la constante renovación y responsabiliza a los individuos de a hacerse cargo de sí mismos. La incertidumbre y miedos generados por la falta de garantías comienzan a ser llenados con la tecnología; el boom de las pantallas y la instauración del reino de lo virtual abren espacio a la comunicación interactiva y a la figura del usuario creador de contenido. En este contexto las redes sociales funcionan como una herramienta que ofrece la posibilidad de una libre elección y de construir una imagen idealizada; sin embargo, esta supuesta libertad viene acompañada de un trasfondo que responde a intereses económicos a través de la venta de datos de los usuarios. Este artículo reflexiona sobre estas transformaciones, y pone énfasis en el caso de Facebook y las repercusiones que tiene esta plataforma dentro de la lógica consumista sobre sus usuarios.
Are You My Grandmother?
Authors: Gardner Jonathan
Published: August 2020

I grew up with my parents telling me that my grandmother was the leader of a cult church. They also told me that I reminded them of her. This 500-word personal essay reflects my resulting attempt to understand myself through the lens of a grandmother I knew primarily through the eyes of others.
REFLEXIÓN SOBRE LA FORMACIÓN DEL EDUCADOR DE INFANCIA CON MIRADA PROSPECTIVA
Authors: Ruiz Zerrate Martha Lucia , García Alicia , Núñez de Perdomo Carmen Rocío , Rojas Magdalena Elizabeth
Published: August 2020

El presente artículo plantea una reflexión, con una mirada prospectiva, acerca de los elementos que marcan la relación entre la formación del educador de primera infancia y las demandas profesionales de la actualidad. De tal manera, a la luz de una revisión de la literatura en diferentes bases de datos tales como: Redalyc, ProQuest, Google Académico, además de investigaciones, artículos de revista, capítulos de libros y documentos gubernamentales, se planteó el rastreo de información alrededor de los temas de Educación para el siglo XXI, Políticas Educativas en Primera Infancia, Educación Inclusiva, Gestión Educativa, Cultura Ética Formadora, Prospectiva y Educación. Luego del proceso de consulta y análisis de la literatura, se concluye que hay una necesidad de promover espacios de formación en los que converjan las políticas públicas en infancia, la inclusión y la gestión educativa, a fin de responder asertivamente, desde el ámbito pedagógico, a las demandas de formación de educadores que desde su gestión construyan nuevos mundos, anticipándose a las necesidades futuras. Es por ello que, el proceso formativo de los maestros de primera infancia, debe promover el pensar, sentir y quehacer de un profesional para impactar los contextos en que se desempeña, haciendo conciencia de los de su contexto y convirtiéndose en líder de proyectos y agente de cambio
Peculiarities of the stress-strain state of the “excavation – geo-environment” and “embankment – geo-environment” systems in the process of erecting them (part II)
Authors: Krasnov Mikhail , Gorshkov Nikolay , Jingwen Yuan , Jdanova Svetlana
Published: August 2020

Excavations and embankments are the most common ground transport structures, operational reliability and durability of which is determined by the stability of their sides and slopes. The first article deals with the features of stress-strain state and changes in stability of ground transport structures (excavations) based on modeling according to the certified program of finite element method GenIDE32. At modeling the layer-by-layer excavation of homogeneous soil from excavations with finite geometrical sizes was carried out. In the excavation edge array, in the field of displacement vector ui, appeared are poorly studied phenomena in the form of «rotation circles» or short vortices. These phenomena, discovered in model experiments (Yu.I. Soloviev, 1956), require detailed research in the future. Graphic results of the calculations performed allow one to see the appearance and development of zones of «plasticity» or limit state in the form of zones of «shift-compression», «compression-shift» and «stretching». Shift-compression zones and vice versa are shown as shaded finite elements at an angle crosswise, while stretch zones are shown as shaded vertically, horizontally and vertically, and horizontally finite elements. These zones, in the process of modeling, are drawn in the edges of the projections of a slide with vertical and horizontal cracks. The contours of the landslide prisms show themselves well when the average relative volume deformation values of ε are displayed on the screen. The display of this value in two colors defines the landslide contours in this figure. Sliding lines with the minimum value of the stability coefficient kst min pass near the borders, where values of this parameter are equal to zero. In this figure, in the upper part of the array, you can see the places where vertical cracks are formed. The analysis also uses graphs of stress-strain state trajectories in the space of stress tensor invariants σij and relative deformations εij in significant nodes and finite elements, located, including, in places of sliding lines with kst min. They make it possible to see from the volume and shape deformation graphs where the system with the calculated condition is located, for example, from the condition at which the body of the landslide was formed.
Features of the progressive destruction of bridge structures
Authors: Karakhanyan Vadim , Ovchinnikov Ilya , Baev Michail , Ovchinnikov Igor
Published: August 2020

The problem of safe maintenance of bridge structures in the event of emergency impacts is being considered. Also the problem of accounting for beyond-design-basis impacts on them is being discussed. Particular attention is paid to the problem of progressive fracture of bridges, which is practically not studied in our country. The equivalence of the problems of progressive fracture and survivability of engineering structures is discussed. An overview is given of a number of publications on bridge construction accidents with an analysis of the causes, which are divided into three groups: those caused by catastrophic natural events (60 per cent), caused by design errors and construction defects (30 per cent) and also caused by poor maintenance or excessive load (10 %).
A.V. Perelmuter’s five theses on progressive fracture are being formulated: (1) The appearance of local failures of the designed system is quite possible; (2) The process of developing sequential destruction is the most dangerous of all possible; (3) Protection against progressive collapse is possible not only by bearing structures strength reservation of the construction, but on the basis of an analysis of the genesis of emergencies it is possible to propose other safety methods against progressive collapse; (4) When modelling the processes of progressive fracture, dynamic effects accompanying the removal of individual elements from the system should be taken into account; (5) If progressive fracture is unavoidable, ways should be sought to localize it and reduce its effects.
At the end of the article, examples of progressive fracture of bridge structures due to the loss of sustaining capacity by the main members (due to corrosion cracking of the reinforcement) and owing to the partial fracture of some load-bearing elements of bridge superstructures are given. A conclusion is made on the need to organize scientific research on the progressive fracture of bridge structures.
Engineering methodology for checking the local stability of the wall of steel I-beams in distributed stress fields
Authors: Kuznetsov Dmitry
Published: August 2020

For many years, normative methods have been developed and applied for the core schematic of the calculation of load-bearing structures. With the increase in computing power of computers and the development of computer programs, it becomes possible to consider design situations for the load-bearing structures modeled in three dimensional form. The results of the calculation of mechanical systems of three-dimensional finite element models in computer complexes are presented in the form of distribution fields: stresses, deformations, displacements. Stresses can be distributed on the plane for plate models or in volume for models of volumetric finite elements. For correct work with the results of calculations of three-dimensional computer models, normative methods of calculation need a quality update and adaptation to new levels of design automation.
In the paper, discusses the procedure for determining the average stress values in the wall of a finite element model of a steel beam, broken into compartments, while checking local stability. The author calculated the steel I-beam of an overlapping beam with a span of 18 meters in the SCAD Office computing complex. The beam geometry is modeled from finite casing elements with zero Gaussian curvature. The article discusses an example of determining the average stress values in an ordinary beam compartment. In the example, the procedure for determining the average stresses in the wall of the steel beam by the distributed fields for the subsequent substitution of the local stability test into the normative condition is indicated. It is proposed to determine the average values of stresses in proportion to the distribution area in the finite elements along the compartment or section of the compartment, in horizontal rows. In the considered method, it is sufficient to determine the average values of stresses for two horizontal rows, then it is proposed to linearly interpolate or extrapolate the required stress along the height of the cross section. The article proposes an engineering method for testing local stability for use in the practice of design.
Utrophin, MHC and M1/M2 macrophages in GRMD dogs
Authors: Toledo Gabriela Noronha de , Moraes Julieta Rodini Engracia de
Published: August 2020

Abstract Muscular dystrophies are hereditary diseases that lead to progressive degeneration of the skeletal musculature. Golden Retriever dogs are used as animal models because they show a hereditary muscle disease similar to muscular dystrophy in humans. Aims: To evaluate the immunostaining of M1 (CD68) and M2 (CD163) macrophages, MHC I, MHC II and, utrophin in muscles of Golden Retriever dogs affected by muscular dystrophy (GRMD). Methods: Samples from 17 male dogs affected by GRMD were divided into GI - dystrophic dogs up to one year of age; and GII - dystrophic dogs over one-year-old. Results: Immunostaining of CD163 was higher than CD68 in both GI and GII. CD68 showed no variation between groups of dystrophic animals. MHC class I immunostaining was most evident in the biceps femoris and triceps brachialis. MHC class II was expressed mildly in four dystrophic muscle types in GI and GII. Utrophin immunostaining was higher in GII. Conclusion: M2 macrophages were one of the main mononuclear inflammatory cells found in dystrophic muscles. The number of M2 in muscles of dogs with GRMD increases with age, linking this cell subtype to permanent muscle damage.
Seropositivity for Maedi-Visna virus in sheep in Porto Acre city - Western Amazon, Brazil
Authors: Vinha Karolyne Teixeira , Silva Tamyres Izarelly Barbosa da
Published: August 2020

Abstract Lentivirosis of small ruminants (LVPR) are chronic and degenerative infectious diseases, caused by Lentivirus, associated with numerous losses such as: drop in meat and milk production, predisposition to secondary infections, expenses with veterinary assistance and, even, early disposal of animals. In the northern region of Brazil, the epidemiological situation is poorly understood. Thus, this study aimed to determine the seropositivity of sheep for Lentivirus in Porto Acre city, Western Amazon, Brazil. 122 blood samples from sheep were collected and as a diagnostic method, agarose gel immunodiffusion was used, using the p28 protein of the capsid as antigen. The seropositivity of the sheep to the test was 8.2% (10/122). In 80% (4/5) of the investigated properties, the presence of seropositive animals was detected. It is worth noting that the acquisition of small ruminants from other states likely represented a risk to sheep health in the municipality of Porto Acre, Western Amazon, Brazil. It is concluded that there is a need for more systematic investigations on the prevalence of LVPR in the state of Acre.
Estratégias Didáticas Ativas de Ensino-Aprendizagem para Preceptores de Medicina de Família e Comunidade no EURACT
Authors: Barreiros Bárbara Cristina , Diercks Margarita Silva , Biffi Maríndia , Fajardo Ananyr Porto
Published: August 2020

Abstract: Introduction: The Family Doctor (FD), whose scope of action is Primary Health Care (PHC), is a professional trained to care for people, their families, and communities. The best FD training should be performed through Medical Residency Programs in Family Medicine (MRPFM), an in-service teaching field where a preceptor, also a FD, accompanies the resident. A pedagogically well-trained preceptor can work in the learning process of young doctors, who in turn are able to develop the necessary skills to work as a future FD. Active Learning Methodologies (ALM) are based on critical pedagogy and work with problems for the development of teaching-learning processes. They seek the theory from the practice, thus preparing the students to become aware of their environment and act aiming at its transformation. ALMs are achieved in the pedagogical processes through Active Teaching-Learning Strategies (ATLS), which are effective pedagogical resources used by the preceptors in the residents’ daily training. They can be divided into two groups: Active Teaching-Learning Dynamics and Active Teaching Actions. This article reports on the effects of a training course for Family Medicine preceptors on the use of Active Teaching-Learning Dynamics and Active Teaching Actions. Method: Qualitative comparative case study using sociodemographic survey, individual semi structured interview and field notes. The information was examined under content analysis, having participated ten preceptors from four MRPFM from the state of São Paulo, Brazil (half having attended the Leonardo EURACT level 1 course and half not having done so). Results: Those preceptors who attended the course expressed having more knowledge and use of Active Teaching-Learning Strategies, specifically of Active Teaching-Learning Dynamics and Active Teaching Actions. Conclusions: It was observed that the Leonardo EURACT level 1 teaching technology modifies the teaching practice of those who took the course, as they demonstrate a greater use and domain of its tools in their pedagogical practice. Moreover, the course allows a greater understanding of the presented dynamics and activities, thus promoting the residents’ critical learning and encouraging autonomy.
Evaluation of skin sensitivity in individuals presented with temporomandibular disorder
Authors: Silva Giovanna Siqueira Faustino da , Paulino Clarissa Evelyn Bandeira , Kosminsky Maurício , Studart-Pereira Luciana Moraes
Published: August 2020

ABSTRACT Purpose: to identify the occurrence of a difference in skin sensitivity between analogous points on the face in individuals with temporomandibular disorder. Methods: a total of 60 individuals of both genders, aged 18 to 73 years, participated in the study. People classified with TMD signs and symptoms with the Fonseca Anamnestic Questionnaire were included. The skin sensitivity was evaluated with a Semmes-Weinstein esthesiometer. Sensitivity change was defined in this study as the occurrence of a difference between analogous points on both hemifaces. The localization of the points followed the regional block anatomical description and was confirmed with a neuromuscular electrostimulation device. The collected data were analyzed statistically with a 5% significance level. Results: the occurrence of a difference in sensitivity between the analogous points had a significant association with age group and severity of TMD. However, no association was perceived between sensitivity change and gender. Conclusion: in the population studied, the more severe the temporomandibular disorder, the greater the skin sensitivity change on the face. Also, the older the person, the higher the number of analogous points with a difference in sensitivity.
El capital inmobiliario-financiero y la producción de la ciudad latinoamericana hoy
Authors: López Lisett Márquez
Published: August 2020

Resumen Entre los cambios generados por el tránsito del patrón de acumulación con intervención estatal al neoliberal en América Latina, destacan la consolidación del capital financiero como actor dominante en la economía, la liberación de sus flujos internacionales y el avance de su fusión con el capital inmobiliario en las ciudades. Esta forma del capital ha generado nuevos productos materiales como la vivienda periférica de interés social y/o desarrollos inmobiliarios para la renovación de las áreas centrales altamente valorizadas, la mercantilización y terciarización de la vida urbana, y aumenta los instrumentos financieros especulativos y de riesgo. El protagonismo del capital inmobiliario-financiero ha llevado al debilitamiento de la planeación urbana indicativa, sustituida por una “estratégica” y los gobiernos locales aplican políticas para facilitar su acción.
O aluguel como gestão da insegurança habitacional: possibilidades de securitização do direito à moradia
Authors: Guerreiro Isadora de Andrade
Published: August 2020

Resumo Este artigo busca compreender novas dinâmicas imobiliárias locatícias nos territórios populares em São Paulo à luz das transformações macroestruturais que consolidaram a predominância da reprodução de capital fictício – que alteraram relações de trabalho, mecanismos de extração de renda e dão novos contornos ao papel estatal. A hipótese é a de que, com o incremento das relações de trabalho “sem forma” na periferia do capitalismo, ganha relevância o papel do aluguel popular na conformação de um modo de vida marcado pela permanente insegurança habitacional. Tal dinâmica é incentivada e regulada por políticas públicas de direito à moradia que estão produzindo e vinculando tal insegurança à possibilidade de remuneração financeira, gerando ambiente propício à atuação de regimes privados de gestão territorial.
Ressemantização das áreas centrais das cidades brasileiras e mercado imobiliário habitacional: o caso recifense (Brasil)
Authors: Lacerda Norma , Bernardino Iana Ludermir
Published: August 2020

Resumo Na década de 1990, as baixas taxas de crescimento da economia brasileira e sua inserção no mundo globalizado tiveram repercussões sobre os centros históricos das grandes cidades ao impulsionarem os governos locais a neles investirem para atrair empresas. Isso tem significado a volta do interesse do capital por esses centros e a revalorização dos respectivos entornos mediante empreendimentos imobiliários habitacionais. Ante essa dinâmica, o objetivo deste texto é identificar as implicações do retorno dos investimentos aos centros históricos sobre o mercado imobiliário de unidades habitacionais antigas e sobre o mercado de moradias novas no seu entorno, responsável pela criação de novas espacialidades que pouco se articulam às antigas espacialidades, tendo como objeto de reflexão a área central recifense.
Lixo, racismo e injustiça ambiental na Região Metropolitana de Belém
Authors: Steinbrenner Rosane Maria Albino , Brito Rosaly de Seixas , Castro Edna Ramos de
Published: August 2020

Resumo A lógica da produção e de descarte de resíduos sólidos é expressão das mais perversas e paradoxais da desigual distribuição de poder no capitalismo. Estigmatiza com a ideia de “atraso”, de “indesejáveis”, indivíduos e lugares “descartáveis”, que recebem os resíduos e os riscos a eles associados que a sociedade de consumo produz. Ancorado em pesquisa documental e bibliográfica e em entrevistas abertas com moradores e ativistas envolvidos na luta pela retirada do Lixão de Marituba, como é conhecido o irregular e polêmico aterro da Região Metropolitana de Belém, este artigo focaliza e discute o caso – emblemático como cena colonial na contemporânea Amazônia urbana – a partir dos marcos da ecologia política e das noções de justiça ambiental, colonialidades, racismo e necropoder.
Os distintos e indistintos meios para viabilizar terminais de uso privativo no Porto de Santos
Authors: Moreira Fernanda Accioly
Published: August 2020

Resumo No Brasil, o Estado sempre criou condições favoráveis para garantir a participação do setor privado nas transformações do espaço urbano, em especial em obras de infraestrutura de transporte e logística. Neste texto, buscamos discutir as disputas pela terra pública e, também, pelo modelo de gestão portuária, no contexto da expansão econômica nas primeiras décadas do século XXI. Ao delimitarmos o porto de Santos como nosso recorte territorial de análise, buscamos precisar os elementos, atores, agentes e conflitos de interesses presentes nessa disputa, bem como a forma pela qual eles se articulam em diferentes escalas. A abordagem transescalar aqui adotada como estratégica metodológica ancorou-se em relações de contínuas aproximações entre fundamentação teórica e imersão empírica. Nesse debate, a função social da terra pública, com oscilações ao seu papel ambiental e econômico, ganha centralidade.
Regimes urbanos: perspectiva comparada entre operações urbanas consorciadas
Authors: Carvalho Mônica de
Published: August 2020

Resumo Este artigo tem por objetivo a análise comparativa dos marcos legais das operações urbanas consorciadas dos municípios de Osasco e São Bernardo do Campo, ambos localizados na Região Metropolitana de São Paulo (RMSP), tendo por referência a perspectiva dos regimes urbanos. Pretendemos demonstrar que a escala geográfica promovida pela operação urbana consorciada é indicativa da maneira como se processa a relação entre o poder público e o setor privado, seja em direção à maior regulação da produção do espaço urbano, seja em direção à sua maior flexibilização.
Os institutos liberais e a consolidação da hegemonia neoliberal na América Latina e no Brasil
Authors: Faria Ana Lúcia B , Chaia Vera
Published: August 2020

Resumo Este artigo analisa as conexões entre o avanço da direita neoliberal nos países latino-americanos, notadamente no Brasil, e as redes de institutos liberais. Examina-se especificamente o think tanks estadunidense, Atlas Network, e as redes parceiras dessa organização que atuam na América Latina e no Brasil. Trata-se de um movimento profundamente articulado por essas redes em âmbito global, da batalha ideológica hayekiana de difusão da racionalidade neoliberal para legitimar e pavimentar o caminho da escalada desmensurada do capital que mercantiliza a sociedade e expropria brutalmente direitos e políticas sociais dos trabalhadores, mediante mudanças ortodoxas nos campos político, jurídico, ideológico e social.
Thermo-mechanical and durability properties of expanded perlite aggregate foamed concrete
Authors: Sharook Sakir , Sathyan Dhanya , Madhavan Mini K.
Published: August 2020

The thermal conductivity of a material is a measure of its capacity to conduct heat and is a major factor influencing heat transfer in buildings. For better thermal insulation, construction materials should possess low thermal conductivity. The feasibility of expanded perlite aggregate as a thermal insulation material in foamed concrete was examined. Mechanical, thermo-mechanical and durability properties were assessed and compared. A base mix was designed to have 1100 kg/m3 density, a water-to-solids ratio of 0.3 and a cement-to-sand ratio of 1:1. Expanded perlite aggregate was used as a substitute for fine aggregate in the foamed concrete mix at contents of 0, 10, 20 and 30% by volume. The work was extended by replacing cement with 60% by weight of fly ash to study an eco-friendly mix. The test results showed that the strength values increased with an increase in fly ash and decreased with an increase in perlite. The reverse trend was observed for thermal conductivity and durability, which was also affected by the addition of perlite. The test results showed that expanded perlite is an excellent replacement for sand as a thermal insulation material. The efficiency of the developed material was assessed by an analytical model using the Comsol Multiphysics software program.
Experimental study on the effect of sediment concentration on trapezoidal hydraulic jump
Authors: Ebrahimiyan Saber , Hajikandi Hooman , Shafai Bejestan Mahmood , Jamali Saeed , Asadi Ebrahim
Published: August 2020

The effect of suspended sediment concentration on the characteristics of a hydraulic jump in a symmetrical trapezoidal channel was studied experimentally and compared with a classic jump. The first test series of the classical jump was performed in a rectangular flume, while the second series was conducted with two different trapezoidal side slopes. In both cases, the tests were conducted under clear water and with different concentrations (4, 8 and 12%) of fine sand of 0.22 mm as suspended sediment. The results of the tests showed that, with an increase in sediment concentration, the jump length ratio and the sequent depth ratio decreased and the energy dissipation increased. The present study considered three different sections (two sections of trapezoidal shape with side slopes of 60° and 75° and one rectangular section). A comparison of the results in flow with Fr1 = 10 for all three sections for a sediment concentration of 12% with clear water showed that the jump length ratio decreased by 14%, 22% and 18%, the sequent depth ratio decreased by 12%, 21% and 31% and the energy dissipation ratio increased by 9%, 12% and 11%, respectively. Some dimensionless relations for the prediction of jump characteristics were also developed.
Experimental study on near-bed flow turbulence of sinuous channel with downward seepage
Authors: Taye Jyotismita , Kumar Bimlesh
Published: August 2020

The presence of a small seepage velocity in streams and rivers induces transfer of mass and momentum near the sediment boundary, causing bank failure and instability of hydraulic structures. This experimental study is intended to report near-bed hydrodynamics and morphological characteristics under the impact of downward seepage. A laboratory investigation was conducted in a sinuous rectangular alluvial channel with rigid sides and movable uniform sand bed. From the distribution of Reynolds shear stress (RSS), the transverse or radial motion of the sediment across the bend was identified. High values of RSS in the outer region relate to higher momentum flux, eroding the outer bend. The contribution probability of ejection and sweep events are highest in the bend region. For seepage, the contribution probability of the events has increased. Moreover, the altered flow with seepage affected the transport of sediment and caused noticeable modifications along the channel bed. With seepage, the erosion rate has been enhanced along the outer bend of the channel.
Investor-State Dispute Settlement under review; current challenges, lack of regulation in the EU-MERCOSUR agreement and basis for the EU-UK and UK-MERCOSUR FTAs
Authors: Theoduloz Duarte Santiago
Published: August 2020

Investment treaties aim to protect the rights of foreign investors and provide legal certainty, generally including an Investor-state dispute settlement (ISDS) system. The increase of criticism towards ISDS -which reached its highest point during the EU-US TTIP negotiations- brought up different concerns. As a result, the Investment Court System (ICS) was developed and incorporated for the first time in the CETA between Canada and the EU, and then in other Free-Trade Agreements (FTA) signed by the EU. However, in the EU-MERCOSUR FTA there is no regulation of a dispute settlement mechanism between investors and States parties.Currently, the United Kingdom (UK) is leaving the EU and negotiations of a new deal with the EU are being developed. In the next stages, the UK will most likely reach different agreements with sovereign states and others commercial blocks. In this sense, there is a possibility that a future EU-UK and UK-MERCOSUR agreement will need to consider whether the ISDS or the ICS will be adopted. Also, MERCOSUR will need to analyse which system it will be willing to adopt in the future in case a dispute settlement between investors and States is adopted, and could even explore a system that includes aspects of both the ISDS and the ICS.
Democracia, institucionalidade e processos decisórios no MERCOSUL e na União Europeia
Authors: Rossi Guilherme
Published: August 2020

O presente artigo apresenta reflexões sobre os processos de decisão do Mercosul e da União Europeia, tendo em vista a correlação destes processos com a institucionalidade e a normativa em que se inserem. Neste contexto, a democracia se afirma como a via deliberativa de diversos casos de integração regional. Em uma primeira etapa, será discutido o suporte formal da democracia aos processos de integração regional. Em uma segunda etapa, identificam-se as particularidades da estrutura institucional de cada organismo. Como exemplo, ressalta-se o caráter intergovernamental do Mercosul e seus efeitos sobre as decisões formuladas neste âmbito. Por outro lado, em comparação, observa-se o formato organizacional da União Europeia, com destaque a algumas características próprias, como a supranacionalidade, a tecnocracia e o marco da cidadania regional. Por fim, a dinâmica proposta aponta ao objetivo de ressaltar a democracia como o regime político necessário aos processos regionais (ou até mesmo internacionais), considerando a demanda pela efetivação e validação das decisões elaboradas nestas instâncias.
The Unmeasured ecological effect of mosquito control
Authors: Török Edina , Hochkirch Axel , Soltész Zoltán , Tscharntke Teja , Batáry Péter
Published: August 2020

Intensive mosquito control programs are likely to contribute to insect diversity loss, but these effects are both underestimated and understudied. We recommend to conduct direct biodiversity monitoring programs to understand the effects of both chemical and biological control.