bluuebunny/crossref_metadata_2025 huggingface dataset:
NGHIÊN CỨU HỆ THỐNG TÁI SINH IN VITRO CÂY HỒ TIÊU (PIPER NIGRUM L.)
Authors: Phượng Trương Thị Bích , Tuấn Nguyễn Đức , Giang Hồ Thị Cẩm
Published: September 2017

Hồ tiêu (Piper nigrum L.) là loại cây trồng lâu năm, thân hóa gỗ. hạt hồ tiêu có giá trị để làm gia vị rất phổ biến trên thế giới. Hồ tiêu được nhân giống bằng phương pháp giâm hom, Phương pháp này có hạn chế là tốn nhiều thời gian, cây con khó đồng nhất về hình thái và di truyền. Nhân giống vô tính thông qua phương pháp nuôi cấy mô được xem là phương pháp thay thế tốt hơn cho phương pháp nhân giống truyền thống để tạo ra lượng cây con lớn và đồng nhất về mặt di truyền, làm tiền đề để tạo giống sạch bệnh virus trên hồ tiêu. Trong bài báo này, chúng tôi trình bày kết quả nghiên cứu hệ thống tái sinh in vitro cây hồ tiêu. Môi trường MS (Murashige, Skoog 1962) bổ sung 1 mg/l BAP cho khả năng tái sinh chồi tốt nhất đạt 2,33 chồi/đoạn thân tự nhiên sau 8 tuần nuôi cấy. Môi trường MS bổ sung BAP (4-5 mg/l) kết hợp IBA (0,5-1 mg/l) và KIN 0,5 mg/l cho hiệu quả tái sinh chồi từ callus. Khả năng tái sinh chồi của callus có nguồn gốc từ hạt là lớn nhất. Trên môi trường MS bổ sung BAP 4 mg/l kết hơp IBA 0,5 mg/l và KIN 0,5 mg/l, callus từ hạt cảm ứng tạo chồi tốt nhất đạt 6,67 chồi/mẫu. Các chồi hồ tiêu in vitro tái sinh từ callus của các dòng hồ tiêu được kiểm tra bằng kỹ thuật PCR. Kết quả kiểm tra sự có mặt của virus PYMoV cho thấy chồi in vitro tạo thành từ tất cả các mẫu vật đều có sự xuất hiện của virus PYMoV, ngoại trừ chồi in vitro tái sinh từ callus có nguồn gốc từ hạt.
ĐÁNH GIÁ HIỆU QUẢ CÁC MÔ HÌNH LÂM SẢN NGOÀI GỖ Ở MỘT SỐ HUYỆN MIỀN NÚI CỦA TỈNH QUẢNG TRỊ
Authors: Vĩnh Lê Quang , Phúc Hoàng Công
Published: September 2017

Lâm sản ngoài gỗ (LSNG) là nguồn tài nguyên có vai trò quan trọng trong đời sống kinh tế xã hội, đặc biệt đối với các cộng đồng có đời sống gắn liền với rừng ở các huyện miền núi của tỉnh Quảng Trị. Phần lớn người dân ở đây vẫn coi rừng như một kho nguyên liệu sẵn sàng cung cấp mọi thứ cho cuộc sống của họ, nên đã khai thác triệt để làm cạn kiệt nguồn tài nguyên rừng. Trước tình hình đó, chính quyền các cấp và các tổ chức phi chính phủ đã triển khai một số mô hình trồng LSNG trên địa bàn Hướng Hóa và Đakrông là hai huyện miền núi của tỉnh Quảng Trị và nhận được sự đồng tình ủng hộ của người dân. Nhiều mô hình lâm sản ngoài gỗ đã được hình thành và phát triển, bao gồm các loại cây LSNG chủ yếu: Tre lấy măng, sa nhân, mây nước, bời lời đỏ và bước đầu đã mang lại những hiệu quả thiết thực. Một số mô hình trồng bời lời đỏ, trồng tre lấy măng hàng năm cho lợi nhuận từ 10 – 13 triệu đồng/ha. Các mô hình đã tạo việc làm, nâng cao thu nhập, cung cấp các sản phẩm đáp ứng  nhu cầu của thị trường và góp phần không nhỏ trong phục hồi tài nguyên rừng.
Sistemas de Controlo de Acesso
Authors: Gomes António Augusto Araújo
Published: September 2017

A segurança, o conforto, a funcionalidade e a fiabilidade dos sistemas que integram as instalações são aspectos fundamentais na qualidade de vida das pessoas. Os sistemas de controlo de acessos são, cada vez mais, um elemento facilitador da gestão dos espaços essenciais à dinâmica funcional das instalações e um meio imprescindível de controlo da actividade nas organizações. O presente artigo aborda a temática do controlo de acessos, no que se refere, essencialmente, aos aspectos técnicos e tecnológicos dos mesmos.
The UN system
Authors: Greiner Ted
Published: September 2017

If you hear criticism of the UN system, the report Fit for Whose Purpose?, just published by the Global Policy Forum, may help you to understand why. The biggest, richest member governments, while telling the United Nations to achieve more, have been cutting back their core budgetary contributions. While calling for decreased fragmentation, they contribute far more now for earmarked projects, causing further fragmentation and turning the UN System into a contractor for their funds, rather than a set of multilateral agencies furthering human rights.
El Monedaje de Huesca de 1284 (Contribución al estudio de la ciudad y de sus habitantes)
Authors: Utrilla Utrilla Juan Fernando
Published: September 2017

En el Archivo de la Diputación de Zaragoza, legajo 745, nº 4, se conserva un manuscrito inédito que contiene la lista nominal de las personas que contribuyeron -o no- al pago del impuesto del monedaje cobrado en la ciudad de Huesca en 1284. Es el libro del monedaje más antiguo que poseemos de la Corona de Aragón.
Índice de la revista
Authors: Aragón en la Edad Media Revista
Published: September 2017

Índice original de la edición impresa de la revista.
La reina María y los funerales de su madre Brianda d'Agout, condesa de Luna, en Zaragoza (1399-1401). Aproximación al estudio de los rituales funerarios de los monarcas de la Corona de Aragón
Authors: Cingolani Stefano Maria
Published: September 2017

En este artículo se describen las ceremonias fúnebres celebradas en Zaragoza para la muerte de Brianda d’Agout, madre de la reina María. Mediante la comparación con ceremonias reales se intenta una aproximación a los rituales fúnebres y las prácticas funerarias de los reyes de Aragón de finales del siglo XIV.
Hacienda local y redes financieras en la Cataluña bajomedieval: los tesoreros del municipio de Gerona (1350-1440)
Authors: Reixach Sala Albert
Published: September 2017

El presente artículo pretende analizar la figura del clavari de les imposicions de la ciudad de Gerona, tesorero principal y oficio fundamental de la administración municipal que cristalizó, igual que en la mayoría de poblaciones catalanas, durante la segunda mitad del siglo XIV. Se presta especial atención a la treintena de individuos que ocuparon dicho cargo entre 1355 y 1443. Así se aportan datos prosopográficos sobre sus actividades profesionales, extracción social, trayectorias y relaciones, a fin de interpretar mejor las instituciones locales.
Las comunidades no confederadas de canónigos regulares en Cataluña en la Baja Edad Media
Authors: Calvo Gómez José Antonio
Published: September 2017

Este trabajo de investigación pretende determinar la extensión real de las comunidades de canónigos regulares en Cataluña que no se vincularon a ninguna de las grandes Órdenes radicadas después del siglo XI. Frente a un modelo explicativo que despreciaba, por residuales, las comunidades adheridas a la Regla de san Agustín, pero ajenas a las congregaciones internacionales, este trabajo muestra un fenómeno verdaderamente generalizado, fundamental en la repoblación de algunos territorios de la Corona de Aragón, que se prolongó, con cierta vitalidad, hasta final de la Edad Media.
Cinco biografías académicas en el 70 aniversario de la revista Estudios de Edad Media de la Corona de Aragón
Authors: Navarro Espinach Germán
Published: September 2017

En este volumen de Aragón en la Edad Media hemos querido abrir tres secciones de contenidos —editorial, dossier y artículos— para celebrar el 70 aniversario de nuestra antigua revista, Estudios de Edad Media de la Corona de Aragón (EEMCA), fundada en 1945 por el profesor José María Lacarra. Su último número de una serie de diez se publicó en 1975. Dos años después, en 1977, la presente revista la sustituyó como publicación oficial del Departamento de Historia Medieval, Ciencias y Técnicas Historiográficas y Estudios Árabes e Islámicos de la Universidad de Zaragoza. Si EEMCA hubiera sido una profesora universitaria nacida en 1945 ahora en 2015 viviría su jubilación académica a los setenta años de edad. El símil no es baladí. Su cumpleaños coincide con el de una generación entera de personas que han dedicado la vida a la docencia, la investigación y la gestión en muchos centros e instituciones de educación superior. De hecho, en nuestro Departamento son cuatro profesores y una profesora todavía activos los que podemos considerar, si se me permite, de la «generación EEMCA». Aprovecharemos el 70 aniversario de la revista para rendirles homenaje con un dossier especial compuesto por sus cinco biografías académicas. Diversos autores y autoras los han retratado en una especie de exposición colectiva que muestra un quinteto de vidas paralelas que ahora se jubilan por imperativo de las fechas en que nacieron: Federico Corriente (14 de noviembre de 1940), Sebastián Andrés Valero (29 de noviembre de 1945), Asunción Blasco Martínez (10 de mayo de 1946), José Ángel Sesma Muñoz (7 de julio de 1946) y Esteban Sarasa Sánchez (14 denoviembre de 1946).
Portada exterior
Authors: Aragón en la Edad Media Revista
Published: September 2017

Portada y contraportada exteriores de la revista.
Dos graduales de Tempore del Archivo de la Catedral de Barbastro
Authors: Bejarano Gordejuela María
Published: September 2017

Este trabajo de investigación pretende estudiar dos Graduales de Tempore de los siglos XV- XVI encontrados en el archivo de la Catedral de Barbastro, uno de ellos perteneciente al Ordo Monástico y el otro al Ordo Catedralicio. El trabajo muestra sus coincidencias y diferencias así como relaciones entre ellos y sus fuentes, los Graduales aquitanos de los siglos XI-XII con el propósito de conocer la influencia de las diferentes fuentes aquitanas en la liturgia musical aragonesa.
Cristianas, judías y musulmanas en la ciudad de Huesca a finales de la Edad Media
Authors: Pérez Galán Cristina
Published: September 2017

Cristianas, judías y musulmanas en la ciudad de Huesca a finales de la Edad Media es un trabajo de historia urbana redactado desde una perspectiva de género que analiza la presencia, ámbitos de actuación, relaciones y actividades de las oscenses de finales del Cuatrocientos. Se fundamenta en documentación archivística inédita, especialmente protocolos notariales, y se estructura en cinco grandes apartados, en los que se analizan las etapas de la vida de las mujeres de las tres culturas así como la participación femenina en el mundo laboral y la economía urbana. La religiosidad de todas ellas se analiza también a través de testamentos y registros iconográficos.
El mundo escriturario y la contribución notarial al estudio de la Zaragoza de Alfonso V el Magnánimo (1416-1458)
Authors: Lacueva Used Francisco Javier
Published: September 2017

El protocolo notarial es una fuente de noticias de suma importancia para el historiador. La tesis desarrollada en este espacio pretende conocer el subsuelo de la sociedad zaragozana de la primera mitad del siglo XV. Para alcanzar este objetivo, se bucea en la labor notarial de 20 escribanos zaragozanos con la intención de proponer un corpus teórico concerniente a aspectos económicos, sociales y culturales del espacio y momento elegidos, lo que se sustancia finalmente en un discurso que habla de la mentalidad que da vida a la Zaragoza tardomedieval. Palabras clave: Notario, protocolo, mentalidades y sociedad.
La occidentalización de los Siete sabios de Roma y su difusión peninsular: el ejemplo de Virgilius
Authors: Aranda García Nuria
Published: September 2017

El Sendebar, nombre genérico con el que se conoce a una colección de cuentos de origen oriental, gozó de gran difusión durante el periodo medieval. Tras la escisión en dos ramas, la oriental Sendebar y la occidental Siete sabios de Roma, la obra penetrará en la Península a partir de versiones de esta última, donde será objeto de traducciones al castellano que evidencian una serie de cambios orientados a la adaptación de la colección a un ideario medieval más puramente occidental y la versatilidad de la estructura narrativa. El análisis en última instancia del cuento Virgilius constituye el ejemplo más representativo de este proceso y una clave más de su éxito en el tiempo.
El legado de Miguel de Capiella y la labor asistencial de la Cofradía de Santa Fe.
Authors: Montanel Marcuello María Ángeles
Published: September 2017

Resumen: La cofradía de Santa Fe se fundó en 1218 en la parroquia de San Gil de Zaragoza. En 1392, Miguel de Capiella, un rico ciudadano zaragozano, legó en su testamento la mayor parte de su fortuna para que esta hermandad se ocupase de auxiliar a pobres y huérfanas. Este documento rigió la misión y la financiación de la cofradía y fue el justificante que legitimó a los parientes del testador a ocupar una de las dos capellanías perpetuas que éste ordenó para mantener su memoria y garantizar la salvación de su alma. El texto fue transcrito a lo largo de los años y consiguió perpetuar el recuerdo de Miguel de Capiella. Palabras clave: Legado, Miguel de Capiella, Cofradía, Santa Fe. Abstract: The brotherhood of Santa Fe was founded in 1218 by the church of San Gil in Zaragoza. In 1392, Miguel de Capiella, a wealthy citizien of Zaragoza, left, in his testament, most of his fortune to this fraternity to help poor and orphaned girls. This document guided the mission and the financing of this brotherhood, but it was justifiably a way to prove the right to manage one of the two perpetual chaplaincies created by Capiella to sustain his remembrance and save his spirit. Therefore, the testament has been transcribed over the years keeping the memory of Miguel de Capiella. Keywoords: Legacy, Miguel de Capiella, Brotherhood, Santa Fe.
Portada exterior
Authors: Aragón en la Edad Media Revista
Published: September 2017

Portada exterior del número 27 (2016) de la revista Aragón en la Edad Media, editado por Prensas de la Universidad de Zaragoza con financiación del Departamento de Historia Medieval, Ciencias y Técnicas Historiográficas y Estudios Árabes e Islámicos y el Vicerrectorado de Política Científica de la Universidad de Zaragoza.
Portada interior, consejo editorial e índice
Authors: Aragón en la Edad Media Revista
Published: September 2017

Portada interior, consejo editorial e índice
Gingival Crevicular Fluid and Placental Tissue Levels of Interleukin-17 as a Possible Marker for Preterm Labor in Patients with Chronic Periodontitis
Authors: Gamal Ahmed Y. , Agoor Mohamed , Shaker Olfat G. , El-Demerdash Fatma H. , Sweed Mohamed S.
Published: September 2017

Background: The present study was conducted to evaluate the levels of interleukin (IL) – 17 in gingival crevicular fluid (GCF) and placental tissue samples of pregnant females as a possible marker in determining whether or not an association exists between chronic periodontitis and preterm labor. Methods: This case-control study included a random sample of 40 female patients, aged 18 to 35 years, who were assigned to one of the following four groups (10 subjects each): group 1 included patients who underwent spontaneous preterm birth (PB) and were diagnosed with chronic periodontitis upon clinical examination (preterm/periodontitis); group 2 included patients who underwent spontaneous PB and who had a healthy periodontium upon clinical examination (preterm/healthy periodontium); group 3 included patients who underwent spontaneous normal term birth and were diagnosed with chronic periodontitis upon clinical examination (term/periodontitis); and group 4 included patients who underwent spontaneous normal term birth and who had a healthy periodontium upon clinical examination (term/healthy periodontium). GCF and placental tissue samples were obtained from each patient and IL-17 levels were measured using enzyme-linked immunosorbent assay (ELISA). Results: GCF levels of IL-17 were significantly higher (P=0.010) in patients with chronic periodontitis compared to those with a healthy periodontium. No significant differences were observed in IL-17 levels in placental tissue samples of all study groups. Conclusion: An association between chronic periodontitis and preterm labor could not be established based on IL-17 levels measured in the present study.
Preliminary findings indicate nosocomial transmission and Roma population as most affected group in ongoing measles B3 genotype outbreak in Bulgaria, March to August 2017
Authors: Kurchatova Anna , Krumova Stefka , Vladimirova Nadezhda , Nikolaeva-Glomb Lubomira , Stoyanova Asya , Kantardjiev Todor , Gatcheva Nina
Published: September 2017

From March to August 2017, 165 measles cases were reported from three regions in Bulgaria. The age range was 0−55 years and 66% of the cases were under 9 years. The Roma population was disproportionally affected (89% of cases), 41% cases were unvaccinated and in 24 cases there was nosocomial transmission mostly in paediatric departments. A child under 12 months of age died. Control measures have been taken and the investigation is still ongoing.
Is a Trojan Horse an Empty Signifier? The Televisual Politics ofOrange Is the New Black
Authors: Demers Jason
Published: September 2017

Orange Is the New Black self-consciously negotiates the politics of the gaze. It demonstrates how the women-in-prison genre contrives objects out of subjects, and it stages a looking back: women meet the gaze with a disdain that the audience is made to share. While it is initially a white, middle class protagonist who looks back, her privileged position is relinquished via a “Trojan horse” strategy that can be read through Ernesto Laclau and Chantal Mouffe's theories of hegemony and the empty signifier. In this collision of narrative structure and political strategy—challenged gaze and Trojan horse—lies a potential model for producing liberationist cinema.
Solid-state mechanochemical ω-functionalization of poly(ethylene glycol)
Authors: Malca Michael Y , Ferko Pierre-Olivier , Friščić Tomislav , Moores Audrey
Published: September 2017

Poly(ethylene glycol) (PEG) is a linear polymer with a wide range of applications in chemical manufacturing, drug development and nanotechnology. PEG derivatives are being increasingly used to covalently modify small molecule and peptide drugs, as well as bioactive nanomaterials in order to improve solubility in biological serum, reduce immunogenicity, and enhance pharmacokinetic profiles. Herein we present the development of mechanochemical procedures for PEG functionalization without the need for bulk solvents, offering a cleaner and more sustainable alternative to existing solution-based PEG procedures. The herein presented mechanochemical procedures enable rapid and solvent-free derivatization of PEG with tosyl, bromide, thiol, carboxylic acid or amine functionalities in good to quantitative yields and with no polymer chain oligomerization, proving the versatility of the method.
Initiatives to foster engineering student motivation: A case study
Authors: Reyes Encarnación , Enfedaque Alejandro , Gálvez Jaime C.
Published: September 2017

There is little doubt that student motivation is essential in providing a beneficial learning experience. One way to provide such motivation is to stimulate it through the most suitable methods of assessment. This paper shares the experience acquired by the authors - university lecturers in Civil Engineering at the Universidad Politécnica de Madrid – both through their assessment methods and the feedback received via the Moodle platform. Over the last eight years the authors have introduced increasingly dynamic methods in their teaching and assessment, with highly satisfactory results being obtained. Over the last three academic years a test through co-assessment has been added and during the two an assessment exercise implemented through the Moodle platform. Each test has a weight of 5% of the final mark for the module. After sitting the respective Moodle test, the students filled in a questionnaire that sought their views not only on the teaching methods but also on how motivational they found such methods. As expected, the results showed that the students considered the internet-based Moodle platform to be useful. However, the most notable finding was that the majority felt that alternative teaching and assessment methods such as, among others, cooperative learning, were those that were most beneficial to their learning experience.
Emerging Concepts in TCR Specificity: Rationalizing and (Maybe) Predicting Outcomes
Authors: Singh Nishant K. , Riley Timothy P. , Baker Sarah Catherine B. , Borrman Tyler , Weng Zhiping , Baker Brian M.
Published: September 2017

T cell specificity emerges from a myriad of processes, ranging from the biological pathways that control T cell signaling to the structural and physical mechanisms that influence how TCRs bind peptides and MHC proteins. Of these processes, the binding specificity of the TCR is a key component. However, TCR specificity is enigmatic: TCRs are at once specific but also cross-reactive. Although long appreciated, this duality continues to puzzle immunologists and has implications for the development of TCR-based therapeutics. In this review, we discuss TCR specificity, emphasizing results that have emerged from structural and physical studies of TCR binding. We show how the TCR specificity/cross-reactivity duality can be rationalized from structural and biophysical principles. There is excellent agreement between predictions from these principles and classic predictions about the scope of TCR cross-reactivity. We demonstrate how these same principles can also explain amino acid preferences in immunogenic epitopes and highlight opportunities for structural considerations in predictive immunology.
Protective effect of different antioxidant agents in UVB-irradiated keratinocytes
Authors: Salucci Sara , Burattini Sabrina , Buontempo Francesca , Martelli Alberto Maria , Falcieri Elisabetta , Battistelli Michela
Published: September 2017

Skin cells can respond to UVB-induced damage either by tolerating it, or restoring it through antioxidant activation and DNA repair mechanisms or, ultimately, undergoing programmed cell death, when damage is massive. Nutritional factors, in particular, food antioxidants, have attracted much interest because of their potential use in new preventive, protective, and therapeutic strategies for chronic degenerative diseases, including skin inflammation and cancer. Some polyphenols, present in virgin olive oil, well tolerated by organism after oral administration, show a variety of pharmacological and clinical benefits such as anti-oxidant, anti-cancer, anti-inflammatory, and neuro-protective activities. Here, the protective effects of antioxidant compounds against UV-induced apoptosis have been described in HaCat cell line. Human keratinocytes were pre-treated with antioxidants before UVB exposure and their effects have been evaluated by means of ultrastructural analyses. After UVB radiation, a known cell death trigger, typical apoptotic features, absent in control condition and in antioxidant alone-treated cells, appear. An evident numerical decrease of ultrastructural apoptotic patterns and TUNEL positive nuclei can be observed when natural antioxidants were supplied before cell death induction. These data have been confirmed by molecular investigation of caspase activity. In conclusion, this paper highlights antioxidant compound ability to prevent apoptotic cell death in human keratinocytes exposed to UVB, suggesting, for these molecules, a potential role in preventing skin damage. 
Bile duct ligature in young rats: A revisited animal model for biliary atresia
Authors: Garrido Matias , Escobar Camila , Zamora Constanza , Rejas Carolina , Varas Juan , Párraga Mario , San Martin Sebastian , Montedónico Sandra
Published: September 2017

Biliary atresia leads to cirrhosis in the vast majority of patients and constitutes the first cause of paediatric liver transplantation. Animal models allow us to understand the molecular basis and natural history of diseases. The aim of this study is to describe a surgically created animal model of biliary atresia with emphasis in long-term liver function. Forty-two 3-week-old Sprague-Dawley rats were randomly divided into two groups: bile duct ligature (BDL) and control. The animals were sacrificed on the 2nd, 4th, and 6th postoperative weeks. Blood samples were collected for liver function analysis. The spleen to body weight ratio was determined. Histopathological examination of liver tissue was performed by hematoxylin-eosin and Sirius red staining. Collagen quantification was determined by using colorimetric digital image analysis and was expressed as a percentage of total liver tissue area. Quantitative real-time polymerase chain reaction was performed to analyse gene expression levels of transforming growth factor-β1 (Tgfb1) and apeline (Apln) genes. Statistical analysis was performed where P<0.05 was considered significant. Animals from BDL group developed increasing cholestasis with clinical and laboratory features. Splenomegaly was detected at 4th and 6th week (P<0.05). Histological evaluation of the liver showed ductular reaction, portal fibrosis and bile plugs. Collagen area to total liver tissue area had a median of 2.5% in the control group and 6.5 %, 14.3 % and 37.7 % in BDL rats at 2nd, 4th and 6th weeks respectively (P<0.001). Tgfb1 mRNA expression level was significantly higher at 6th week (P<0.001) in BDL group when compared to control. Apln mRNA expression level was significantly higher at 4th and 6th week (P<0.001) and showed a positive linear correlation (r = 0.975, P<0.05) in BDL group when compared to control. Bile duct ligature in young rats is an animal model that recreates clinical, laboratory, histological and molecular findings of biliary atresia. Bile duct ligature constitutes a good animal model to investigate therapeutic approaches for modifying the progression of liver fibrosis in biliary atresia.
The relationship between internationalisation, creativity and transformation: A case study of higher education in Hungary
Authors: Smith Melanie K. , Vass Vilmos
Published: September 2017

The main objective of this article is to explore the relationship between internationalisation, creativity and transformation in the context of higher education. It is argued in academic theory that the process of internationalisation in higher education has two pillars: transformational learning and creative development, and that creativity is an integral part of transformational learning. To explore this relationship further, the authors draw on primary research undertaken in the context of a higher education institution in Budapest, Hungary. A Delphi study with senior academic staff and a focus group with Hungarian and international students were included in the research. Questions were asked which aimed to determine whether creativity is indeed an integral part of transformational learning, and whether creativity and transformation are the most important elements of internationalisation. Staff and students recognise the creative and transformative potential of internationalisation, but they also identified several challenges. These include encouraging students to go beyond instrumental approaches to learning, providing staff with the relevant training and support, changing the culture of institutions and overcoming the lack of flexibility in existing national education structures. Overall, the research findings reinforced theoretical perspectives, which propose creative thinking, cooperative and communicative learning, project-based and problem-solving activities as some of the main tools in the process of transformational learning and prerequisites for internationalisation.
Liver Perivascular Epithelioid Cell Tumor with an Unusual Location: Diagnostic Characteristics with Multidetector Computed Tomography and Magnetic Resonance Imaging
Authors: Hekimoglu Koray , Haberal Murat
Published: September 2017

Primary perivascular epithelioid cell tumor (PEComa) of the liver is a very rare tumor that originates from mesenchyma. Gastrointestinal tract with perivascular distribution is the most common anatomic sites of these tumors. Only few cases of hepatic PEComa have been described so far. Malignant PEComas exhibit aggressive behavior with poor prognosis, making early diagnosis crucial. Hereby, we report a 79-year-old female with unusually located mass in the liver. A partial curative hepatectomy has been done, and PEComa was diagnosed histopathologically. No evidence of recurrence was observed during the 6-month follow-up.
SRB measures for partially hyperbolic systems whose central direction is weakly expanding
Authors: Alves José F. , Dias Carla L. , Luzzatto Stefano , Pinheiro Vilton
Published: September 2017

We consider partially hyperbolic

C^{1+}

diffeomorphisms of compact Riemannian manifolds of arbitrary dimension which admit a partially hyperbolic tangent bundle decomposition

E^s \otimes E^{cu}

. Assuming the existence of a set of positive Lebesgue measure on which

f

satisfies a weak nonuniform expansivity assumption in the centre unstable direction, we prove that there exists at most a finite number of transitive attractors each of which supports an SRB measure. As part of our argument, we prove that each attractor admits a Gibbs–Markov–Young geometric structure with integrable return times. We also characterize in this setting SRB measures which are liftable to Gibbs–Markov–Young structures.
Superscars in the Šeba billiard
Authors: Kurlberg Pär , Ueberschär Henrik
Published: September 2017

We consider the Laplacian with a delta potential (a “point scatterer”) on an
irrational
torus, where the square of the side ratio is
diophantine
. The eigenfunctions fall into two classes—“old” eigenfunctions (75%) of the Laplacian which vanish at the support of the delta potential, and therefore are not affected, and “new” eigenfunctions (25%) which are affected, and as a result feature a logarithmic singularity at the location of the delta potential.

Within a
full density
subsequence of the new eigenfunctions we determine all semiclassical measures in the weak coupling regime and show that they are localized along 4 wave vectors in momentum space — we therefore prove the existence of so-called “superscars” as predicted by Bogomolny and Schmit. This result contrasts the phase space
equidistribution
which is observed for a
full density
subset of the new eigenfunctions of a point scatterer on a
rational
torus. Further, in the strong coupling limit we show that a weaker form of localization holds for an
essentially full density
subsequence of the new eigenvalues; in particular quantum ergodicity does not hold.

We also explain how our results can be modified for rectangles with Dirichlet boundary conditions with a point scatterer in the interior. In this case our results extend previous work of Keating, Marklof and Winn who proved the existence of localized semiclassical measures under a clustering condition on the spectrum of the Laplacian.
A new proof of Savin's theorem on Allen–Cahn equations
Authors: Wang Kelei
Published: September 2017

In this paper we establish an improvement of tilt-excess decay estimate for the Allen–Cahn equation, and use this to give a new proof of Savin's theorem on the uniform

C^{1,\alpha}

regularity of flat level sets. This generalizes Allard’s

\varepsilon

-regularity theorem for stationary varifolds to the setting of Allen–Cahn equations. A new proof of Savin’s theorem on the one-dimensional symmetry of minimizers in

\mathbb{R}^n

for

n\leq 7

is also given.
Geometric Eisenstein series: twisted setting
Authors: Lysenko Sergey
Published: September 2017

Let

G

be a simple simply-connected group over an algebraically closed field

k

, and

X

a smooth connected projective curve over

k

. In this paper we develop the theory of geometric Eisenstein series on the moduli stack Bun

_G

of

G

-torsors on

X

in the setting of the quantum geometric Langlands program (for étale

\mathbb Q_{\ell}

-sheaves) in analogy with [3]. We calculate the intersection cohomology sheaf on the version of Drinfeld compactification in our twisted setting. In the case of

G

= SL

_2

we derive some results about the Fourier coefficients of our Eisenstein series. For

G

= SL

_2

and

X = \mathbb P^1

we also construct the corresponding theta-sheaves and prove their Hecke property.
Eco-physiological characterization of early successional biological soil crusts in heavily human impacted areas – Implications for conservation and succession
Authors: Szyja Michelle , Büdel Burkhard , Colesie Claudia
Published: September 2017

Abstract. Eco-physiological characterization of photoautotrophic communities is not only necessary to identify the response of carbon fixation related to different climatic factors, but also to evaluate risks connected to changing environments. In biological soil crusts (BSCs), the description of eco-physiological features is difficult, due to the high variability in taxonomic composition and variable methodologies applied. Especially for BSCs in early successional stages, the available datasets are rare or focused on individual constituents, although these crusts may represent the only photoautotrophic component in many heavily disturbed ruderal areas, like parking lots or building areas with increasing surface area worldwide. We analyzed the response of photosynthesis and respiration to changing BSC water contents, temperature and light in two early successional BSCs. One BSC was dominated by the cyanobacterium Nostoc commune, the other by the green alga Zygogonium ericetorum. Independent of species composition, both crust types had convergent features like high light acclimatization and low or no depression in carbon uptake at water suprasaturation. This particular setup of eco-physiological features may enable these communities to cope with a high variety of climatic stresses, and may therefore be a reason for their success in heavily disturbed areas with ongoing human impact. Nevertheless, a major divergence between the two BSCs was their absolute carbon fixation rate on a chlorophyll basis, which was significantly higher for the cyanobacterial crust. This study emphasizes the importance of measuring intact BSCs under natural conditions for collecting reliable data.
Assessing storm surge hazard and impact of sea level rise in the Lesser Antilles case study of Martinique
Authors: Krien Yann , Dudon Bernard , Roger Jean , Arnaud Gael , Zahibo Narcisse
Published: September 2017

Abstract. In the Lesser Antilles, coastal inundations from hurricane-induced storm surges pose a great threat to lives, properties and ecosystems. Assessing current and future storm surge hazards with sufficient spatial resolution is of primary interest to help coastal planners and decision makers develop mitigation and adaptation measures. Here, we use wave–current numerical models and statistical methods to investigate worst case scenarios and 100-year surge levels for the case study of Martinique under present climate or considering a potential sea level rise. Results confirm that the wave setup plays a major role in the Lesser Antilles, where the narrow island shelf impedes the piling-up of large amounts of wind-driven water on the shoreline during extreme events. The radiation stress gradients thus contribute significantly to the total surge – up to 100 % in some cases. The nonlinear interactions of sea level rise (SLR) with bathymetry and topography are generally found to be relatively small in Martinique but can reach several tens of centimeters in low-lying areas where the inundation extent is strongly enhanced compared to present conditions. These findings further emphasize the importance of waves for developing operational storm surge warning systems in the Lesser Antilles and encourage caution when using static methods to assess the impact of sea level rise on storm surge hazard.
“Bases antropológico-filosóficas de las aportaciones del constructivismo epistemológico a la didáctica
Authors: Cano de Pablo Juan
Published: September 2017

Muchas de las teorías educativas actuales son de corte constructivista. En este artículo, reflexionamos sobre diversas cuestiones antropológico-filosóficas que justifican los postulados del constructivismo aplicados a la didáctica expuestos por Giovanni Marcello Iafrancesco. Cuando nos adentramos en el constructivismo epistemológico encontramos diferentes orientaciones teóricas. Algunas de ellas se relacionan con la epistemología evolucionista y la idea de selección natural. Por ello, tras la introducción, se realiza una crítica a la idea de selección natural en el campo antropológico, después de la cual aparecen expuestas las ideas necesarias para que los postulados del constructivismo, aplicados a la didáctica, resulten evidentes.
Las pulsiones y la pregunta por el entender: Spinoza, Nietzsche y Kuno Fischer”.
Authors: Pablos Escalante Raúl de
Published: September 2017

Este artículo se centra en el motivo spinoziano de entender las acciones humanas (E3Praef., TP1) y su interpretación llevada a cabo por Nietzsche en La ciencia jovial 333. Nietzsche no lee directamente a Spinoza sino el volumen de la Historia de la filosofía moderna de Kuno Fischer dedicado al filósofo del siglo XVII; lo que puede confirmarse por la manera en que el texto es citado en el aforismo 333. Aunque Nietzsche reduce en demasía la potencia del entendimiento a una de sus facetas al traducir intelligere por erkennen, es necesario destacar que el aforismo presenta una novedad que puede enriquecer el estudio de las relaciones entre Spinoza y Nietzsche. Este último identifica el pensar consciente con «las últimas escenas de reconciliación» entre diversas pulsiones a partir de un conflicto inconsciente (unbewusst) previo. Si bien este recorrido parte de la centralidad de los afectos en ambos pensadores, identifica un límite preciso que distancia el entendimiento de los afectos en Spinoza de la centralidad de las pulsiones en el proyecto filosófico nietzscheano.
La soledad de lo Uno: Mística y teología negativa en la obra de Michel de Certeau”.
Authors: Torres Sánchez Rayiv David
Published: September 2017

A partir del momento en que el cuerpo de lo único se oculta, y el sepulcro es vaciado de toda presencia, se tiene una falta primordial en común (corpus mysticum). Por ello, esta ausencia, en lo relativo al mundo cristiano, se expresa en términos de un ocultamiento originario (Deus absconditus). Por su parte, la tradición teológica y mística medieval, heredera e interlocutora de toda una tradición metafísica del mundo helénico (especialmente el neoplatonismo), sistematizó a lo largo de los siglos la gramática de esta desaparición en términos de una inaccesibilidad e irreductibilidad del ser, a saber, una negatividad esencial del Logos (v.gr. “ni esto ni aquello”, “ni lo uno ni lo otro”). Podría anticiparse, por tanto, como punto de llegada, que el lenguaje de la tradición de la mística cristiana, no es sólo el lenguaje de la falta de un cuerpo (la encarnación del Verbo), sino también, la búsqueda de un lenguaje suficiente para reconciliar lo universal con la unidad autónoma del lenguaje. Este artículo se propone, pues, reconstruir la manera en que el historiador y teólogo jesuita francés, Michel de Certeau, reconstruyó genealógicamente parte de una tradición mística que, inmersa en una serie de variables y posibilidades históricas de enunciación, reconstruyó genealógicamente parte de una tradición mística que desembocaría en una relación de alteridad. Este sería uno de los desenlaces en la modernidad temprana occidental de aquello que desde los orígenes del neoplatonismo se conoce como la soledad de lo Uno.
The Comparative Study of civil Society Organizations in Combat Corruption in I.R.I and South Korea with Overview to the United Nations Convention against Corruption (UNCAC)
Authors: Varkani Abutaleb Motallebi , Barati Amir Nezam
Published: September 2017

Corruption is a social, political, economic and even security phenomena that defect the democratic institutions and it make a lot of problem for governance (private, civil society and government sectors). Combating corruption is one of the most important factors for establishment of Good Governance. In combat corruption different actor such as government, private sector and civil society have functions, but the role of civil societies are very effective than others.This study using analytical–descriptive, analyses the role of civil society in combat corruption in I.R. of Iran and South Korea.Findings of this study shows that in south Korea the role of special civil society organization in combat corruption have remarkable efficiency but in Iran, specialized civil society organizations are in the beginning of the path to tackle corruption or this kind of NGO is not established until now, while the parliament ratified the law of UN Convention against corruption and it is necessary to execute and recognize the role of these NGOs in this hard struggle.
Estado desenvolvimentista: uma parceria entre o Setor Público e Privado em Maringá-PR
Authors: Menezes Vânia De
Published: September 2017

Considerando o debate recente acerca do desenvolvimentismo e suas implicações, com relação aos papeis do Estado e do setor privado e da relação entre ambos, a pesquisa documental propõe um debate teórico dos estudos sobre o desenvolvimento, os ciclos e crises associados a este fenômeno, bem como o papel dos grandes grupos econômicos em tempos recentes. Pretende, enfim, construir um painel sobre este tema que possibilite tanto uma análise do Estado como mediador de oportunidades visando à redução das desigualdades sociais e regional do município de Maringá-PR.
Cinema e populações de origem africana no Ensino de História: experiências no Estágio Curricular Supervisionado
Authors: Debortoli Gabrielli
Published: September 2017

O presente artigo visa discorrer sobre o uso de recursos midiáticos em sala de aula a partir de experiências e reflexões proporcionadas pela disciplina de Estágio Curricular Supervisionado II e III do curso de História da Universidade do Estado de Santa Catarina (UDESC), ministrada no semestre de 2014/2. A análise é feita a partir dos elementos abordados pelos alunos, onde estes demostraram terem capturado determinadas ideias e exemplos a partir dos filmes que foram assistidos em sala e debatidos com a turma. O estágio foi realizado na Escola Básica Municipal Vitor Miguel de Souza, com alunos do 7º ano. O período histórico que estava sendo trabalhado com os alunos antes de iniciar o período do estágio era o Brasil Colonial, de forma que se optou por abordar os aspectos da escravidão no Brasil. O objetivo desse recorte temático foi de desmistificar a ideia de que os escravizados eram passivos e meros objetos, dando visibilidade às ações dos sujeitos e valorizando a história e a cultura das populações de origem africana.
A Colônia do Sacramento na historiografia nacional e os usos da Historia Topografica e Belica de Simão Pereira de Sá
Authors: Gonçalves Palma Zimmer Tamyres
Published: September 2017

A Colônia do Sacramento – hoje território uruguaio – teve papel extremamente relevante na colonização do extremo-sul da América portuguesa a partir do século XVII. Apesar de ter sido o primeiro povoado português tão ao sul do território, por muitas décadas a existência e importância da Colônia foi descartada por historiadores nacionalistas que buscavam esquecer este território perdido. Para compreender esta representação, selecionei, a partir de critérios por mim explanados ao início do artigo, trabalhos de diversas tipologias para analisar a maneira como a Colônia do Sacramento é tratada - ou não - na historiografia nacional. Por fim, analiso obras que fizeram uso da crônica de Simão Pereira de Sá como detentora da verdade, de maneira acrítica, confiando nas palavras daquele erudito sem se perguntar quais seriam os interesses por trás de sua retórica.
“Eu o vi, Lusitanos, não me engano/ Já temos o monarca descoberto”: o rei Encoberto para Manuel Bocarro Francês (1593 – 1662).
Authors: Negreiros Carlos Eugênio
Published: September 2017

Manuel Bocarro Francês (1593 – 1662) foi um médico português, judeu e sebastianista que, trabalhando também como astrólogo, previu que o reino de Portugal libertar-se-ia do domínio de Castela graças ao lendário rei Encoberto. Através de cálculos astronômicos sobre os movimentos dos astros e interpretações pessoais, Bocarro acreditava que a coroa portuguesa estava destinada a d. Teodósio de Bragança, pai do futuro rei D. João IV. O objetivo do presente artigo é relacionar o momento histórico português – a União Ibérica – com os escritos de Bocarro de teor profético e messiânico sobre o rei Encoberto.
As percepções de Clodomir Vianna Moog e Bayard de Toledo Mércio acerca da nacionalização de imigrantes e descendentes nas obras Um rio imita o Reno e Longe do Reno
Authors: Dos Santos Rodrigo Luis
Published: September 2017

Objetivamos neste trabalho analisar os diferentes discursos e posicionamentos acerca da Campanha de Nacionalização empreendida no Brasil durante o período do Estado Novo, tendo como objetos dois romances escritos neste período: Um rio imita o Reno, de Vianna Moog, publicado em 1939, e Longe do Reno, lançado em 1940, tendo como autor Bayard de Toledo Mércio. Cada autor elabora uma narrativa representativa de suas compreensões pessoais e posicionamentos políticos e ideológicos frente ao processo nacionalizador em vigência naquele momento, em consonância com a divisão em esfera mundial deflagrada por conta da eclosão da Segunda Grande Guerra, a partir de 1939. Deste modo, cabe ressaltar a importância da apreensão de elementos presentes na Literatura por parte dos historiadores, tendo em vista a forte carga representativa e discursiva que são empregadas nessas obras, sendo possível antever uma compreensão significativa do quadro social, político e cultural deste período histórico.
"Meu reino por um cavalo!": a construção da imagem vilanesca do rei Ricardo III a partir das Crônicas de Holinshed, de 1587
Authors: Ribeiro Oliveira Renata
Published: September 2017

Este artigo tem como objetivo analisar a construção da imagem de vilão do rei Ricardo III da Inglaterra, a partir das Crônicas de Holinshed, de 1587. A história do monarca, assim como seu caráter, são bastante discutidos na historiografia inglesa, sendo este constantemente retratado como um dos piores reis do país. Contudo, em muitos estudos, julgamentos de caráter são feitos, a partir de atos atribuídos ao rei desde o século XVI, durante a dinastia Tudor, que retirou Ricardo do poder. As Crônicas foram uma das principais fontes históricas do período e responsáveis por criar um imaginário em torno do rei Plantageneta, caracterizando-o como assassino e vilão, sendo posteriormente, imortalizado pela famosa peça de William Shakespeare, Ricardo III.
Taxa de cancelamento cirúrgico
Authors: Pinheiro Silvania Lopes , Vasconcelos Raissa Ottes , Oliveira João Lucas Campos de , Matos Fabiana Gonçalves de Oliveira Azevedo , Tonini Nelsi Salete , Alves Débora Cristina Ignácio
Published: September 2017

El objetivo de esta investigación fue identificar la tasa de cancelaciones quirúrgicas en un hospital universitario público y caracterizar las cirugías y los motivos de la suspensión. Se trata de un estudio descriptivo, transversal, retrospectivo y documental basado en la programación quirúrgica y en los expedientes clínicos de los pacientes atendidos en la unidad del centro quirúrgico de un hospital público de enseñanza del Estado de Paraná, Brasil. La población deriva del total (n=2828) de los procedimientos quirúrgicos programados entre abril y noviembre de 2013 y la muestra analizada consistió en todas aquellas intervenciones que habían sido canceladas (n=522), independientemente del motivo. Con los datos tabulados se realizó el análisis estadístico descriptivo, en porcentaje. La tasa global de cancelaciones quirúrgicas se obtuvo mediante la fórmula de un programa de calidad y productividad hospitalaria, determinada en 18,45%. Se constató la prevalencia de cancelaciones de las siguientes áreas: cirugía general (25,48%); ortopedia (23,57%); y neurocirugía (20,11%). Las motivos más comunes estaban vinculados con recursos humanos (61,38%) e ineficiencia en la planificación quirúrgica (21,45%).Se llegó a la conclusión que la tasa global identificada fue ligeramente más alta. Se apunta a la necesidad de un seguimiento de los recursos humanos responsables de la planificación y ejecución de cirugías.