bluuebunny/crossref_metadata_2025 huggingface dataset:
UNA AVENTURA EMPRESARIAL EN UN PROYECTO INTEGRAL: MOBILIARIO DEL EDIFICIO CAPITOL, LUIS M. FEDUCHI, 1931-33

A Corporate Adventure in a Comprehensive Project: the Furniture of the Capitol Building, Luis M. Feduchi, 1931-33
Authors: Villanueva Fernández María , García-Diego Villarías Héctor
Published: April 2017

En 1933 fue inaugurado el edificio Capitol, obra de los arquitectos Vicente Eced y Luis M. Feduchi. El proyecto contenía un complejo programa para el cual Feduchi diseñó un mobiliario de gran diversidad estilística que se adaptaba a las necesidades funcionales de cada estancia. Aquella convivencia de estilos y vanguardias que presentaba el mobiliario repercutió de manera directa en la elección de las empresas que participaron en su construcción: Rolaco-Mac, Lledó, Santamaría y Crowner. La presente investigación ofrece, a través del análisis de los muebles diseñados por el arquitecto y su relación con las distintas firmas, la verdadera dimensión que adquirió la obra del edificio Capitol, hasta el punto de convertirse en una auténtica aventura empresarial en un proyecto integral.
Analysis of Cruise Tourism on Croatian Rivers
Authors:   Faculty of Maritime Studies, University of Rijeka, Kovačić Mirjana , Zekić Astrid , Violić Anto
Published: April 2017

Cruise trips have been rising in popularity since the 1970 sand are currently a trend in the tourism market. This is particularly true of river cruises, which record a constant growth in the number of ship calls. The general upward trend in the number of river cruise passengers and dockings is also present in Croatia. Prerequisites for the development of cruising on Croatian rivers include, in addition to other geographical features, also the length of navigable water ways, but a systematic approach to this issue is needed for further development. The authors investigate the level of development of infrastructure on Croatian rivers and analyze the passenger and ship traffic on them. Special attention is given to the importance of cruises for tourism on European rivers and world wide. In accordance with the Croatian Tourism Development Strategy until 2020, the authors explore geographical and other conditions necessary for the development of river cruise tourism. The aim of the paper is to point to the importance of building infrastructure for accommodation of vessels sailing on Croatian rivers, and in particular to the need to improve tourism offer in river destinations.
The Concept of the Development of Intermodal Transport Network Illustrated by Polish Market
Authors:   Transport Engineering and Economics Faculty Maritime, University of Szczecin, Poland, Wiśnicki Bogusz , Milewski Dariusz , Chybowski Leszek , Hełczyński Igor
Published: April 2017

The presented research focuses on the development of an intermodal transport system in Europe. The model for a national intermodal transport network is presented based on conditioning of Poland. It proposes the location of intermodal terminals including port, regional, local and transit terminals. It also gives the forecast of intermodal units transhipments by the year 2030. Organizational solutions that provide for significant improvement to the quality of intermodal transport are suggested. The paper ends with the Authors’ conclusions of a specific and strategic nature.
Development in the Regulation of Wages and Working Conditions: The Employee Perspective
Authors: Høgedahl Laust , Jørgensen Henning
Published: April 2017

The Nordic countries are renowned for their high level of unionization and collective bargaining. However, globalization, Europeanization, and an increasing individualization are often pictured as factors suppressing collective regulation. In this article, we look at the developments in the regulation of wages and working conditions from a macro perspective by combing two large cross- sectional surveys into a longitudinal study with point of departure in the Danish case. We find that collective bargaining coverage continues to stand surprisingly strong, both in terms of being very widespread and in employee awareness, but Danish wage and salary earners also have an interest in extra support in the form of generalization and/or a politically regulated minimum wage 
A formação de educadores na era digital
Authors: Vilela Luciane Ribeiro
Published: April 2017

Com o advento das tecnologias de comunicação e informação, vivemos na chamada “era digital”, e como não poderia deixar de ser, a educação faz parte desse novo cenário social. Existem inúmeras razões para a educação ser um referencial nesse novo paradigma, voltada para a formação de cidadãos capazes de integrarem-se à era digital, cujo princípio está embasado na capacidade intelectual de usar a informação transformando-a em conhecimento. Contudo, as políticas públicas voltadas para a formação de educadores na área tecnológica, não têm colaborado de forma efetiva para que estes se apropriem desses novos conhecimentos. As reflexões aqui apresentadas, pretendem enfocar a era digital e suas implicações para os educadores, destacando-se a importância da informação e do conhecimento como mediadores do processo de inovação e desenvolvimento social. Assim este artigo, sem intencionar o esgotamento do assunto, busca apresentar um breve panorama da tecnologia educacional no Brasil, suas perspectivas e possibilidades.
A educação musical no Conservatório de Música do Estado de Sergipe: abordagem sócio-política, histórica e metodológica do projeto pedagógico de ensino
Authors: Moreira Marcos Santos
Published: April 2017

Este artigo pretende fazer uma abordagem o processo de ensino do Conservatório de Música do Estado de Sergipe em relação a admissão, cursos oferecidos e sua contribuição sócio-educativa, no processo de desenvolvimento didático, na fundamentação da prática pedagógica e interpretativa nos estudos de música no Estado sergipano. O objetivo do tema procede para que possamos entender e refletir sobre educação musical em Sergipe e ter o entendimento de como este processo deve se adequar e como hoje ainda apresenta dificuldades necessitando de apurado planejamento governamental. O texto baseia-se logo após a criação do Projeto Político Pedagógico (PPP) elaborado por professores do Conservatório de Música do Estado de Sergipe, revisado e apresentado pelos Professores Hugo Leonardo Ribeiro e Marcos Moreira no XV Encontro da ABEM em João Pessoa-Paraíba em 2006.
Práticas e representações na Escola Normal de Campinas no período 1920-1936
Authors: Pinheiro Maria de Lourdes
Published: April 2017

O presente trabalho traz uma discussão acerca das práticas vividas na Escola Normal de Campinas e das representações dessas práticas, por aqueles que as vivenciaram no período investigado. Ao tentar captar os movimentos de continuidades e rupturas, que se articulam a signos e vestígios da condição e das relações sociais de e entre os sujeitos, as práticas relatadas e as suas representações projetam-se como símbolos de uma época. Os usos que delas foram feitos explicam o movimento de constituição do perfil da Escola, num tempo e num espaço institucionais em que se apostava na escola e no seu poder de transformação cultural para moralizar e instruir a população.
Aprender a aprender: propostas de intervenção em estratégias de aprendizagem
Authors: Boruchovitch Evely
Published: April 2017

É inegável a escassez de propostas de intervenções e de elaboração de materiais instrucionais nacionais, relativos às estratégias de aprendizagem, em todos os segmentos da escolarização formal. O objetivo deste artigo é descrever e analisar alguns estudos nacionais, realizados e em andamento, tendo como referencial teórico a Psicologia Cognitiva baseada na Teoria do Processamento da Informação. Espera-se contribuir para discussão e produção de conhecimentos nessa área.
Platão e a educação da alma
Authors: Correia Wilson
Published: April 2017

O presente trabalho investiga as concepções platônicas sobre educação e indaga: a tese sobre a educação na Alegoria da Caverna contempla a formação do homem como ser integralmente concebido? Este trabalho assume a contribuição que instiga os pesquisadores da filosofia ao filosofar próprio e objetiva evidenciar que, na Alegoria da Caverna, Platão estabelece um conceito de educação da alma como libertação de si. A metodologia é bibliográfico-documental, pela apreensão e análise do dito do filósofo estudado. Conclui que uma concep-ção de educação que não siga o idealismo platônico pode adotar uma posição teórico-metodológica que valorizasse o homem inserido no mundo e que nele se lança para dar conta da existência concreta e presente.
Polia - feminino de Polifilo
Authors: Tamaru Angela Harumi
Published: April 2017

Estudo sobre imagens-enigmas da obra Hypnerotomachia Poliphili, de 1499, editada por Aldus Manutius, e o movimento alegórico de arquitetura, amor e erotismo.
Editorial: English
Authors: Santos Gildenir Carolino , Passos Rosemary
Published: April 2017

Due to the “A” Qualis National qualification of ETD - Digital Thematic Education by ANPEd, its team decided to celebrate the fact offering to our readers and colaborators, who contributed so much to achieve this goal, launching a special thematic number, ending the year of 2007. This time the Group of Studies and Research in Higher Education (GEPES) of UNICAMP Education Faculty is involved in the organization of the issue. For this reason, the DOSSIERS section was dedicated to Studies and Research in Higher Education, with the inclusion of seven unpublished works, which deals with university reform, the Bologna process, skills, evaluation and higher education, plus, educational policy, with the collaboration of national and foreign authors...
El espacio europeo de educación superior y su impacto en la evaluación del proceso enseñanza-aprendizaje
Authors: López López Maria Carmen
Published: April 2017

El llamado proceso de Bolonia ha sumergido a la universidad europea en un interesante proceso de transformación y convergencia. La adopción del nuevo modelo educativo que se propone, basado en el dominio de competencias, plantea importantes desafíos y exige no sólo revalorizar la labor del docente universitario, sino articular propuestas formativas que potencien su formación pedagógica y su desarrollo profesional. El artículo analiza, de forma crítica, las deficiencias que presenta el actual modelo de evaluación en la educación superior y el impacto que la adopción de este nuevo discurso sobre competencias tiene en la evaluación del proceso de enseñanza-aprendizaje, prestando atención a los peligros que supone su puesta en práctica e incidiendo en los retos y posibilidades de mejora que ofrece. En el articulo se apuesta por clarificar algunas de las claves que ayudan a optimizar los procesos de evaluación e incrementar su calidad, entendida ésta como un compromiso de la institución y del docente universitario con el desarrollo de procesos evaluadores más integrales y vinculados con la mejora.
El clima y su influencia en la salud pública. De Hipócrates a las polémicas americanas
Authors: Salaverry García Oswaldo
Published: April 2017

Desde la antigüedad se ha considerado que el clima tiene influencia sobre el origen y naturaleza de las enfermedades. Esta relación alcanzó un punto culminante con las doctrinas hipocráticas del siglo IV a.C. que influenciaron la medicina occidental hasta el siglo XVII, cuando se actualizaron y tomaron nueva forma bajo la influencia de Thomas Sydenham. La doctrina resultante de las “topografías médicas” y elambientalismo generaron el movimiento higienista en salud pública antes que la teoría bacteriológica de la enfermedad se concretara en la segunda mitad del siglo XIX. En ese marco de la relación entre clima y seres vivos, Buffon consideró que el clima americano infantilizaba a plantas, animalesy seres humanos, lo que llevo a Pauw a postular una supuesta degeneración de los habitantes de América. Dicha afirmaciónfue refutada por diversos naturalistas como Jefferson, Unanue y otros. Los argumentos esgrimidos en esa disputa, bajo otro ropaje, continúan vigentes al interpretar desde una visión del primer mundo a las nuevas epidemias que afectan a países latinoamericanos.
El descubrimiento teórico de las topologías de transición de fases y las topologías de las fases de la materia
Authors: Castromonte Salinas Juvenal
Published: April 2017

Los tres ganadores del Premio Nobel de Física 2016 emplearon conceptos matemáticos de topología para describir estados o fases de la materia queahora permiten conocer los mecanismos de los superconductores, superfluidos y películas magnéticas delgadas.
De catenanos y rotaxanos a interruptores, sensores y coches moleculares
Authors: Tsuneshige Antonio
Published: April 2017

Por varias décadas, entrelazar mecánicamente dos moléculas circulares de manera consistente no había sido nada simple. Mucho menos el ensartar de manera estable una molécula lineal en una circular. Fueron hechos fortuitos los que llevaron a dos pioneros a descubrir independientemente la manera de realizar eficientemente estas hazañas. De esta manera fueroncreados el catenano y el rotaxano. Pronto se pudo vislumbrar la aplicación de estos en el diseño de interruptores, sensores, válvulas, canales, todos deescala molecular. La máxima proeza la llevó a cabo un tercer científico construyendo un nanocoche móvil con tracción en las cuatro ruedas.
La teoría de contratos
Authors: Pastor Cazorla Fernando
Published: April 2017

Las economías modernas se mantienen unidas por innumerables contratos. Hart y Holmström fueron galardonados con el Premio Nobel de Economíaeste año por sus valiosas contribuciones para la comprensión de los contratos reales y las instituciones, así como peligros potenciales en el diseño del contrato.
El vecindario limeño en las décadas de 1920-1940.
Authors: Zanutelli Rosas Manuel
Published: April 2017

El autor nos introduce en la parte céntrica de la ciudad de Lima con sus más interesantes casas y establecimientos así como los distinguidos personajesque vivieron y trabajaron allí. Es la Lima que fue en las décadas anteriores a la gran migración provinciana hacia la ciudad capital.
Una Vida Rusa en la Psicología: A Propósito de una Reciente Biografía de Iván P. Pavlov
Authors: León Donayre Ramón
Published: April 2017

El autor destaca una reciente y completa biografía sobre el fisiólogo ruso Iván P. Pavlov (1849-1936), quien fue uno de los pocos hombres de cienciatolerados por el gobierno soviético a pesar de no adherirse abiertamente con las ideas del socialismo.
Elitismo, romanticismo y positivismo en la medicina peruana del siglo XIX
Authors: Graña Aramburú Alejandro
Published: April 2017

Se revisa el tema de la elites y su rol en las sociedades así comode los individuos que forman parte de ellas, considerando también las influencias de los movimientos del romanticismo y del positivismo, en especial el caso de la inmolación del héroe nacional Daniel Alcides Carrión García en el siglo XIX y su significado en la medicina peruana.
Guillermo Whittembury Mendiola
Authors: Guerra-García Cueva Róger
Published: April 2017

El  20 de noviembre del 2016, mientras visitaba Puno, falleció “Willo” Whittembury, valioso peruano, investigador destacado y gran amigo. Esta nota le recuerda con particular aprecio.
Bob Dylan’s songs
Authors: Dylan Bob
Published: April 2017

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Algunos versos de su poemario inédito.
Authors: Huamán de los Heros Combe Norma
Published: April 2017

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An Ecological Panorama on How Parental Involvement Affects Academic Achievement of Secondary School Pupils in Masvingo
Authors: Iline Chingombe Shamiso
Published: April 2017

This study explored the influence of an ecological perspective on the parental involvement on secondary school pupil’s academic performance. It was influenced by Urie Bronfenbrenner’s ecological systems theory. A qualitative research was adopted through an interpretivist paradigm. The research participants comprised of two teachers and five parents. The research instrument used was the one to one interviews with the both the teachers and the parents. A thematic data analysis was used to analyse data solicited from the research participants. Findings from the teachers revealed that some parents were partially involved in the learning of their pupils and some pupils were found not to be doing their homework. Ultimately, this derailed the whole learning process. In addition diverse sentiments were outlined by the parents including the   claim that it was the teachers’ obligation to ensure that children were consistently assisted by the teachers. Their argument was based on the understanding that parents are paying full fees, therefore they expect the best out of their money.    Some parents indicated that, as much as they would want to assist their children,  they are to some extent incapacitated The researcher recommended that if the parents are unable to assist their children, they should find  other means to do so . The same applies with teachers who are encouraged to reconsider ways of assisting children who cannot get parental assistance.
Performances of the Least Developed Countries under Neo-liberal Regimes: Implications for the implementation of Agenda 2030 for Sustainable Development
Authors: Tewolde Melake
Published: April 2017

The Least Developed Countries (LDCs) have implemented neoliberal policies such as trade liberalization, privatization of public enterprises, and currency devaluation with the expectation to promote their economic growth and development by capturing the gains from international trade through a more efficient allocation of resources and increased private investment. Twenty one countries (constituting 44%) have been designated LDCs since 1971, the introduction of the category for the first time by the United Nations (UN). Development experiences of the LDCs indicate that neoliberal policies are not adequately addressing their development challenges. The LDCs  are still locked into a low equilibrium trap characterized by fragile economic growths, distorted  structural transformation,  low domestic resource, high dependence on external financing , high dependence on primary commodity exports, high external debt burden  and debt services  and  low human development. The LDCs must thus shift to a developmental state approach to strategically integrate into the world economy and to build their productive capacities and to enhance their structural transformation which could lead the countries along the path of sustained economic growth to meet the Sustainable Development Goals (SDGs) by 2030. 

The implications for the implementation of Agenda 2030 for sustainable development are that:

(i) The LDCs have  to extensively tap their domestic savings potentials and investments to reach 25% or more of their Gross Domestic Product(GDP) to  sustain 7% -8% growth rates per annum that will have a great impact on  poverty reduction in line with the  sustainable development goal 1 (SDG1) . (ii) The LDCs have to select a few SDGs which are of high national priorities and  synchronize them  with their respective national development plans  and determine  the financing needs for the implementation  of the selected SDGs. (iii)  cancellation of external debt of the LDCs  by the creditors in order to release resources needed for their  investments to achieve the SDGs (iv) replacement of foreign aid  by market access for  the LDCs products to  increase their foreign exchange earnings needed for  building their  productive capacities. (v) Maintaining peace and stability and resolving conflicts to release resources needed for their productive investment.
Tax Regulation and Sustainability of Microfinance Institutions in Masvingo Urban, Zimbabwe
Authors: Duve Munyaradzi , Mandizvidza Rejoice , Chibaya Tendai , Nyakuwanika Moses
Published: April 2017

The study seeks to evaluate the effect of the current tax regulatory regime on the sustainability of microfinance institutions (MFIs) in Masvingo urban.  Many governments raise public finance through the taxation of individuals and the business community. Undertaking of this study was mainly motivated by the increase in the number of microfinance institutions after the introduction of the multicurrency system in 2009, but the government is failing to meet its revenue targets. The study was done on 24 loan officers and 8 managers of MFIs. Data was collected using a Likert scale questionnaire. Quantitative data was presented using SPSS. This study found that a tax regulation can enhance the sustainability of MFIs if properly simplified to promote investment in microfinance business through provision of tax exemptions, tax incentives, free registration, simplified record keeping procedures, and reduced tax rates. The study recommends that MFIs should not be heavily taxed if they are to meet a major objective of poverty alleviation.  
Production and marketing constraints of fisherwomen self help groups in Thoothukudi District, Tamil Nadu
Authors: Jayaraman R.
Published: April 2017

A study was conducted to identify the constraints faced by fisherwomen self help groups (SHGs) especially with respect to production and marketing. A sample of 40 fisherwomen from the SHGs in Tharuvaikulam fishing village in Thoothukudi District of Tamil Nadu was selected randomly and the required data were collected using a pre-tested interview schedule in the year 2013. Garrett ranking technique was used to analyse the constraints ranked by the fisherwomen according to their perception of importance. Seven production constraints were identified and among them, high cost of inputs (raw material) was ranked first. They identified five financial constraints, of which lack of funds for starting and running business activities was the single most important constraint. Among the five constraints that influenced cohesion of the SHGs, lack of leadership and guidance affected the performance of the SHGs including their business activities. Among the 14 marketing constraints identified, lack of marketing skills was found the most important. With regard to performance constraints, it was observed that less profits brought down their performance. Among the six extension constraints that affected market access, lack of contact between producer and consumer was identified as most important. Lack of lateral thinking and innovation among the seven entrepreneurship constraints, was identified to deny them success in their business.
Investigations on white spot disease outbreak in Penaeus monodon (Fabricius, 1798) in association with Vibrio mimicus infection in the Sunderbans, West Bengal, India
Authors: Raja R. Ananda , Panigrahi A. , De Debasis , Kumar Sujeet
Published: April 2017

The present study investigated the outbreak of white spot disease (WSD) in association with Vibrio mimicus infection, which occurred twice consecutively in a black tiger shrimp (Penaeus monodon) farm located in the Sunderbans, West Bengal, India. The farm stocked with post-larvae (PL) @ 16 PL m-2, encountered disease outbreak on the 41st day of culture (DOC) followed by a second outbreak on the 54th DOC with 100% mortality each time. Shrimp samples were collected for molecular diagnosis as well as for microbiological investigations. White spot syndrome virus (WSSV) infection was confirmed by polymerase chain reaction (PCR). V. mimicus isolated from the outbreak, was characterised by morphological, physiological and biochemical characteristics. V. mimicus isolated was found to be pathogenic by challenge studies which caused 100% mortality in P. monodon juveniles. Microbial load was studied in the natural infection and also in challenge trials in relation to the day of advancing infection. LD50 value for V. mimicus, isolated from the outbreak, was 107.32 in P. monodon juveniles. Co-infection of V. mimicus with WSSV led to 100% mortality within seven days from the onset of clinical signs.
Effect of total replacement of fishmeal by earthworm and Azolla filiculoides meals in the diets of Nile tilapia Oreochromis niloticus (Linnaeus, 1758) reared in concrete tanks
Authors: Djissou Arnauld S. M. , Ochiai Akito , Koshio Shunsuke , Fiogbe Emile D.
Published: April 2017

In order to eliminate use of fishmeal in aquafeeds, we evaluated the effect of total replacement of fish meal by a mixture of earthworm (Eisenia foetida) and aquatic fern Azolla filiculoides in the diets of Nile tilapia Oreochromis niloticus (Linnaeus, 1758). The experiment was conducted in O. niloticus fingerlings (initial mean weight = 5.6±0.2 g) for a period of 60 days. Five experimental diets isoproteic (30.4±0.6% protein) comprising control diet A0 and four test diets (A1 to A4) without fish meal were formulated. To satisfy essential amino acids requirements in test diets, the ratios 2:1; 1:1; 1:2; 1:5 between A. filiculoides and earthworm meals were used respectively in total replacement of fish meal. The diets were tested in triplicate. On termination of the experiment, the final mean weights in the test diets (10.79 to 11.94 g) were lower than 14.9 g obtained in group fed control diet (p<0.05). The best growth performance and feed utilisation were obtained in fish fed test diets A1 and A4 (SGR = 1.25 and 1.26% day-1; FCR = 2.37 and 2.31 respectively). Excess of lysine in test diets was found to affect the feed utilisation.
Effect of lead nitrate on the ovaries of the - striped snakehead Channa striatus (Bloch, 1793)
Authors: Sharma Shivani , Vyas Vipin , Tamot Sadhna , Jha Ghanshyam N.
Published: April 2017

The effect of sublethal concentrations of lead nitrate (0, 8, 18 and 28 mg l-1) on the ovaries of the freshwater murrel Channa striatus (Bloch, 1793) (average length : 20-25 cm; average weight : 50-60 g), randomly distributed (ten fishes per group) into four groups (control, Exp-1, Exp-2 and Exp-3, respectively), were studied in triplicate. Each group of fishes were exposed to lead nitrate for 90 days with the aim to assess the histoarchitectural alterations in the ovaries, at different time intervals. Loosening of connective tissue, deshaped primary oocytes, damaged epithelial layer of oocytes, decreased number of yolk granules in secondary oocytes, upliftment of epithelial layer of secondary oocytes, comparatively decreased number of primary oocytes, necrosis, damaged and irregular shaped oocytes and inflammation were common features in all the three experimental groups exposed to sublethal concentrations of lead nitrate. Severity of the above features increased with increased lead nitrate concentration and duration of exposure.
Genetic diversity of the cyprinid fish Capoeta trutta (Heckel, 1843) populations from Euphrates and Tigris rivers in Turkey based on mtDNA COI sequences
Authors: Parmaksız Arif , Eksi Esra
Published: April 2017

In this study, genetic diversity of Capoeta trutta (Heckel, 1843) populations from Euphrates and Tigris rivers in Turkey was evaluated based on gene sequence analysis of mitochondrial DNA cytochrome c oxidase subunit I (mtDNA COI) locus. Six polymorphic sites and seven haplotypes were detected in 47 samples collected from four populations viz., Adiyaman, Birecik, Bismil and Batman. The mean haplotype diversity (h) and nucleotide diversity (π) were calculated as h = 0,6420 and π = 0,00138 respectively. Pairwise FST statistics of different populations were found to be negative, low and were insignificant, indicating gene flow. AMOVA analysis showed Fst = 0.09865 and p = 0.00489, indicating that the populations were isolated. The results of Neutrality tests showed an increase in Adiyaman, Birecik and Bismil populations and a decline in Batman population, all values being statistically insignificant (p>0.05). Three haplotypes determined for mtDNA COI locus in the present study form important data set for genetic diversity of this species.
Anaesthetic management of a child with PEHO syndrome
Authors: Marshall Benjamin , Turner Matthew , Lobo Shirley
Published: April 2017

Progressive encephalopathy with oedema, hypsarrhythmia and optic atrophy (PEHO) syndrome is a rare neurodegenerative disorder of probable autosomal recessive inheritance. Specific challenges faced by the anaesthetist include difficult venous access, aspiration risk, and muscular hypotonia contraindicating the use of suxamethonium.

A 3‐yr‐old boy with PEHO syndrome underwent tonsillectomy for the management of obstructive sleep apnoea. Our anaesthetic technique consisted of a gaseous induction followed by total intravenous anaesthesia, following which the patient was awoken and admitted electively to the intensive care unit for monitoring. We approached the case adopting techniques used when anaesthetising patients with more common neuromuscular diseases. Although we considered the option of using rocuronium followed by reversal with sugammadex, total avoidance of neuromuscular blocking drugs was felt to be the safest choice. The availability of intensive care in the postoperative period played an important role in our overall management.
Cardiogenic shock secondary to taxus baccata poisoning
Authors: Pope Charlie
Published: April 2017

A 55‐yr‐old man presented to the emergency department complaining of dizziness and collapse. His past medical history included post‐traumatic stress disorder, anxiety and irritable bowel syndrome. He was pale, clammy and confused. He was hypotensive and bradycardic with broad and dysmorphic QRS complexes on his ECG. Initial investigations revealed a potassium level of 6.3 mmol.l‐1on a venous blood gas sample. This was treated with intravenous calcium gluconate, fluids and an insulin‐dextrose infusion. He improved over a short period of time, made a full recovery and was discharged home from the coronary care unit the next day. He was subsequently found to have suffered with taxus baccata posioning from consumption of the leaves of the English yew tree.
Perioperative management of separation of pygopagus conjoined twins
Authors: Valecha Umesh Kumar , Singh Shri Prakash , Batra Meenu , Rahul Kanta M , Malhotra Ashima , Kumar Praneet
Published: April 2017

Perioperative management of conjoined twins is extremely difficult. The unique anatomical and physiological considerations pose a challenge to the entire operating team including the anaesthetist. The complexity of surgical technique, length of operation, risk of hypothermia, changes in fluid, electrolyte and acid‐base balance require meticulous planning, appropriate resources and a dedicated team effort. We report successful separation of pygopagus conjoined twins at our institution and discuss the perioperative management.
Virulence Factors Associated with Enterococcus Faecalis Infective Endocarditis: A Mini Review
Authors: Madsen Kristian T. , Skov Marianne N. , Gill Sabine , Kemp Michael
Published: April 2017

Introduction:

The enterococci are accountable for up to 20% of all cases of infective endocarditis, withEnterococcus faecalisbeing the primary causative isolate. Infective endocarditis is a life-threatening infection of the endocardium that results in the formation of vegetations. Based on a literature review, this paper provides an overview of the virulence factors associated withE. faecalisinfective endocarditis. Furthermore, it reports the effects of active or passive immunization against some of these involved factors.

Individual virulence factors:

Nine virulence factors have in particular been associated withE. faecalisinfective endocarditis. Absence of these factors entailed attenuation of strains in both mixed- and mono-bacterial infection endocarditis models as well as inin vitroandex vivoassays when compared to their virulence factor expressing parental strains.

Pathogenesis:

The virulence factors promote a broad spectrum of events that together allow for disease development and progression. The infection is initiated through bacterial binding to ligands present at the site of infection after which the colonization can be accelerated through inter-bacterial attachment and modulation of the host immune response. The formation and growth of the vegetation provide protection and promote growth. Controlled degeneration of the vegetation appears to increase the likelihood of embolization and dissemination, without exposing protected bacteria.

Prophylactic immunization:

In most cases, active and passive immunization against associated virulence factors provided partial protection.

Future prospects:

There is a need for further evaluation of the known virulence factors. Immunization against two or more virulence factors might be an effective prophylactic tool.
Ozone Sensitivity and Catalase Activity in Pigmented and Non-Pigmented Strains of Serratia Marcescens
Authors: de Ondarza José
Published: April 2017

Background:

Ozone exposure rapidly leads to bacterial death, making ozone an effective disinfectant in food industry and health care arena. However, microbial defenses may moderate this effect and play a role in the effective use of oxidizing agents for disinfection.Serratia marcescensis an opportunistic pathogen, expressing genes differentially during infection of a human host. A better understanding of regulatory systems that control expression ofSerratia’s virulence genes and defenses is therefore valuable.

Objective:

Here, we investigated the role of pigmentation and catalase inSerratia marcescenson survival to ozone exposure.

Method:

Pigmented and non-pigmented strains ofSerratia marcescenswere cultured to exponential or stationary phase and exposed to 5 ppm of gaseous ozone for 2.5 – 10 minutes. Survival was calculated via plate counts. Catalase activity was measured photometrically and tolerance to hydrogen peroxide was assayed by disk-diffusion.

Results:

Exposure ofS. marcescensto 5 ppm gaseous ozone kills > 90% of cells within 10 minutes in a time and concentration-dependent manner. Although pigmentedSerratia(grown at 28°C) survived ozonation better than unpigmentedSerratia(grown at 35°C), non-pigmented mutant strains ofSerratiahad similar ozone survival rates, catalase activity and H2O2tolerance as wild type strains. Rather, ozone survival and catalase activity were elevated in 6 hour cultures compared to 48 hour cultures.

Conclusion:

Our studies did not bear out a role for prodigiosin in ozone survival. Rather, induction of oxidative stress responses during exponential growth increased both catalase activity and ozone survival in both pigmented and unpigmentedS. marcescens.
Hip Abductor Strengthening Improves Physical Function Following Total Knee Replacement: One-Year Follow-Up of a Randomized Pilot Study
Authors: Harikesavan Karvannan , Chakravarty Raj D. , Maiya Arun G , Hegde Sanjay P. , Y. Shivanna Shivakumar
Published: April 2017

Background:

Total knee replacement (TKR) is the commonest surgical procedure for patients with severe pain and impaired physical function following end stage knee osteoarthritis. The hip abductors are well renowned in stabilization of the trunk and hip during walking, maintaining the lower limb position, and transferring the forces from the lower limbs to the pelvis.

Objective:

To assess the efficacy of hip abductor strengthening exercise on functional outcome using performance based outcome measures following total knee replacement.

Methods:

An observer blinded randomized pilot trial design was conducted at Manipal hospital, Bangalore, India. Participants designated for elective TKR were randomized to experimental group hip abductor strengthening along with standard rehabilitation (n=10) or control group standard rehabilitation alone (n=10). Participants followed for one year to assess physical function using performance based outcomes, such as timed up and go test, single leg stance test, six minute walk test, knee extensor strength and hip abductor strength.

Result:

Eighteen participants with a mean age of 63.1 ± 5.5 years (8 Males and 10 Females) completed the study. Improvement in hip abduction strength, single leg stand test was superior in hip abductor strengthening group at 3 months and 1 year when compared to standard rehabilitation alone.

Conclusion:

Hip abductor strengthening showed superior improvements in single leg stance test and six minute walk test. Hip abductor strengthening exercises has the potential to improve physical function following total knee replacement.
Особенности гальваномагнитных явлений в сильных магнитных полях в бикристаллах кручения 3D топологического изолятора Bi-=SUB=-1-x-=/SUB=-Sb-=SUB=-x-=/SUB=- (0.07≤ x≤ 0.2)
Authors: Мунтяну Ф.М. , Георгицэ Е.И. , Gilewski A. , Кистол В. , Бежан В. , Мунтеану В.
Published: April 2017

Исследованы гальваномагнитные явления в бикристаллах кручения сплавов Bi1-xSbx (0.07≤ x≤ 0.2) при низких температурах и в магнитных полях до 40 Тл. Установлено, что при малых углах разориентации кристаллитов переход полупроводник-полуметалл индуцируется в центральном (толщина ~ 60 нм) и двух смежных слоях (толщина ~20 нм каждый) интерфейса при разных значениях ультраквантового магнитного поля. В бикристаллах с большими углами разориентации в сильных магнитных полях наблюдались квантовые осцилляции магнитосопротивления и эффекта Холла, которые свидетельствуют о том, что плотность электронных состояний выше, а носители заряда тяжелее в смежных слоях интерфейсах, чем в кристаллитах. Наши результаты показывают также, что в бикристаллах кручения существуют области разной плотности квантовых электронных состояний, зависящие от угла разориентации кристаллитов и напряженности магнитного поля. DOI: 10.21883/FTP.2017.04.44331.8371
Динамика абсолютно прозрачных каналов рассеяния электронов в трехбарьерных структурах при двухфотонных переходах
Authors: Пашковский А.Б.
Published: April 2017

Для несимметричных трехбарьерных резонансно-туннельных структур с тонкими высокими барьерами решение уравнения Шредингера, описывающее резонансные переходы между тремя квантовыми уровнями в сильном двухчастотном электрическом поле, обобщено на случай отстройки частот и энергий от строго резонансных. Исследована зависимость формы резонансных уровней от амплитуды и частоты электрических полей. Показано, что в зависимости от амплитуды СВЧ поля число областей абсолютной прозрачности может доходить до четырех. DOI: 10.21883/FTP.2017.04.44335.8171
Электронный обмен между нейтральными и ионизованными примесными центрами железа в стеклообразном селениде мышьяка
Authors: Марченко А.В. , Tеруков Е.И. , Егорова А.Ю. , Киселев В.С. , Серегин П.П.
Published: April 2017

Примесные атомы железа в стеклообразных пленках селенида мышьяка As2Se3, модифицированных железом, образуют одноэлектронные донорные центры с энергией ионизации 0.24(3) эВ (энергия отсчитывается от дна зоны проводимости). Уровень Ферми с ростом концентрации железа смещается от середины запрещенной зоны к положению донорного уровня железа за счет заполнения одноэлектронных состояний акцепторного типа, лежащих ниже уровня Ферми. При концентрациях железа ≥3 ат% с увеличением температуры выше 350 K наблюдается процесс электронного обмена между нейтральными и ионизованными центрами железа, приводящий к изменению как электронной плотности, так и тензора градиента электрического поля на ядрах атомов железа. DOI: 10.21883/FTP.2017.04.44338.8411
Чувствительность к импульсным электрофизическим воздействиям энергонасыщенных соединений на основе высокодисперсного кремния и нанопористого кремния
Authors: Зегря Г.Г. , Савенков Г.Г. , Морозов В.А. , Зегря А.Г. , Улин Н.В. , Улин В.П. , Лукин А.А. , Брагин В.А. , Оськин И.А. , Михайлов Ю.М.
Published: April 2017

Исследована чувствительность к воздействию сильноточного электронного пучка энергонасыщенного соединения на основе нанопористого кремния и перхлората кальция. Проведены исследования по возбуждению взрывчатых превращений с помощью высоковольтного разряда смеси пикрата калия с высокодисперсным порошком кремния, легированного бором. Показано, что под действием электронного пучка в исследованном энергонасыщенном соединении возникают режимы взрывчатого превращения (горение и взрыв). Установлена связь режимов взрывчатого превращения с плотностью энергонасыщенного соединения и напряжения пробоя (инициирования) с массовой долей порошка кремния. DOI: 10.21883/FTP.2017.04.44342.8391
Влияние гамма-облучения на фотолюминесценцию пористого кремния
Authors: Елистратова М.А. , Романов Н.М. , Горячев Д.Н. , Захарова И.Б. , Сресели О.М.
Published: April 2017

Исследовано влияние гамма-облучения на люминесцентные свойства пористого кремния, полученного электрохимическим методом. Регистрировались изменения фотолюминесценции между дозами облучения и в течение нескольких дней после последнего облучения. Обнаружено гашение фотолюминесценции при небольших дозах облучения и восстановление ее после дальнейшего облучения. Выявлено сильное окисление пористого кремния после гамма-облучения, продолжающееся в течение нескольких дней после облучения. Предполагается, что изменение спектров и интенсивности фотолюминесценции пористого кремния после гамма-облучения обусловлено изменением типа пассивации пористой поверхности: вместо водородной пассивации наблюдается более стабильная кислородная. Для стабилизации спектров фотолюминесценции пористого кремния предложено использовать фуллерен. У образца пористого кремния со слоем термически напыленного фуллерена не обнаружено значительных изменений спектров фотолюминесценции во время облучения и в течение 18 дней после него. Показана стабильность к гамма-облучению и окислению образцов пористого кремния с напыленным слоем C60. DOI: 10.21883/FTP.2017.04.44343.8451
Энергетический спектр и тепловые свойства терагерцового квантово-каскадного лазера на основе резонансно-фононного дизайна
Authors: Хабибуллин Р.А. , Щаврук Н.В. , Клочков А.Н. , Глинский И.А. , Зенченко Н.В. , Пономарев Д.С. , Мальцев П.П. , Зайцев А.А. , Зубов Ф.И. , Жуков А.Е. , Цырлин Г.Э. , Алфёров Ж.И.
Published: April 2017

Исследованы зависимости положения электронных уровней и силы осциллятора переходов от приложенного электрического поля для терагерцового квантово-каскадного лазера (ТГц ККЛ)с резонансно-фононным дизайном на основе каскада, состоящего их трех квантовых ям. Рассчитаны напряженности электрического поля для двух характерных состояний исследуемого терагерцового квантово-каскадного лазера: 1) протекание паразитного" тока по структуре, когда порог генерации еще не достигнут; 2) порог генерации достигнут. Проведено моделирование процессов теплопереноса в исследуемых терагерцовых квантово-каскадных лазерах для определения оптимальных режимов питания и охлаждения. Подобраны режимы термокомпрессионного соединения гребневого полоска лазера с проводящей подложкой n+-GaAs на основе Au-Au для создания механически более прочного контакта c большей теплопроводностью. DOI: 10.21883/FTP.2017.04.44349.8414
Гетероэпитаксиальные структуры InAs-=SUB=-1-x-=/SUB=-Sb-=SUB=-x-=/SUB=- на градиентных буферных слоях GaInSb и AlGaInSb
Authors: Гусейнов Р.Р. , Танрывердиев В.А. , Kipshidze G. , Алиева Е.H. , Алигулиева Х.В. , Абдуллаев Н.А. , Мамедов Н.Т.
Published: April 2017

Получены нерелаксированные слои твердого раствора InAs1-xSbx (x=0.43 и 0.38) методом молекулярно-лучевой эпитаксии с использованием градиентных буферных слоев GaInSb и AlGaInSb. Высокое качество полученных тонких пленок подтверждается результатами исследований высокоразрешающей рентгеновской дифракции и микро-рамановского рассеяния. Выявлен двухмодовый тип перестройки фононных спектров твердых растворов InAs1-xSbx. DOI: 10.21883/FTP.2017.04.44351.8401
Исследование пространственного распределения фототока в плоскости Si-p-n-фотодиода с наноостровками GeSi методом сканирующей ближнепольной оптической микроскопии
Authors: Филатов Д.О. , Казанцева И.А. , Шенгуров В.Г. , Чалков В.Ю. , Денисов С.А. , Горшков А.П. , Мишкин В.П.
Published: April 2017

Методом сканирующей ближнепольной оптической микроскопии исследовано пространственное распределение фототока в плоскости p+-n-перехода на базе Si cо встроенными самоформирующимися наноостровками GexSi1-x (x~0.35) при локальном фотовозбуждении зондом микроскопа на длине волны излучения 1310 нм, большей красной границы собственной фоточувствительности Si. На изображениях фототока (картах пространственного распределения фототока в плоскости фотоприемного окна p+-n-фотодиода) обнаружены неоднородности, связанные с межзонным оптическим поглощением в наноостровках GeSi. Результаты работы показывают возможность визуализации индивидуальных наноостровков GeSi на изображениях фототока с пространственным разрешением ~100 нм. DOI: 10.21883/FTP.2017.04.44353.8420
Анизотропия длин свободного пробега фононов в монокристаллических пленках Ge, Si, алмаза при низких температурах
Authors: Кулеев И.И.
Published: April 2017

Рассмотрены физические аспекты влияния анизотропии упругой энергии кристаллов на анизотропию длин свободного пробега фононов в монокристаллических пленках Ge, Si, алмаза при диффузном рассеянии фононов на границах. Показано, что длины свободного пробега фононов для достаточно широких пленок Ge, Si, алмаза с ориентациями \100\ и \111\ и длинами пленок, меньшими или равными их ширины, являются изотропными (не зависят от направления градиента температуры в плоскости пленки). А анизотропии длин пробега фононов зависит главным образом от ориентации плоскости пленки и определяется фокусировкой и дефокусировкой фононных мод. Для пленок Ge, Si, алмаза с ориентациями \100\ и \111\ и длинами пленок, гораздо больших их ширины, длины свободного пробега фононов становятся анизотропными. Работа выполнена в рамках государственного задания ФАНО России (тема "Спин" N 01201463330) при поддержке Программы УрО РАН (проект N 15-17-2-17) и Минобрнауки РФ (грант N 14.Z50.31.0025). DOI: 10.21883/FTT.2017.04.44267.294
Ab initio расчет структуры и оптических свойств оксигалогенидов свинца Pb-=SUB=-3-=/SUB=-O-=SUB=-2-=/SUB=-X-=SUB=-2-=/SUB=- (X =Cl, Br, I)
Authors: Закирьянов Д.О. , Чернышев В.А. , Закирьянова И.Д. , Ярославцева Т.В.
Published: April 2017

С помощью ab initio методов получены сведения о кристаллической структуре, рассчитаны фононные спектры и оптические свойства оксигалогенидов Pb3O2Br2 и Pb3O2I2. Синтезировано соединение Pb3O2Br2 и зарегистрированы его фононные спектры. Проведено отнесение наблюдаемых в эксперименте колебательных полос. Выполнен сравнительный анализ параметров кристаллической решетки, фононных спектров, параметров анизотропии оксигалогенидов свинца Pb3O2X2 (X = Cl, Br, I). Исследование выполнено при финансовой поддержке РФФИ в рамках научного проекта N 15-03-00368а. Рентгенофазовый анализ выполнен в ЦКП ИВТЭ УрО РАН "Состав вещества". DOI: 10.21883/FTT.2017.04.44270.236
Мультиферроидные свойства и структурные особенности Al-замещенных гексаферритов бария M-типа
Authors: Труханов А.В. , Труханов С.В. , Костишин В.Г. , Панина Л.В. , Салем М.М. , Казакевич И.С. , Турченко В.А. , Кочервинский В.В. , Кривченя Д.А.
Published: April 2017

Выполнены прецизионные исследования кристаллической и магнитной структуры замещенных гексаферритов бария M-типа BaFe12-xAlxO19 (0.1≤ x≤1.2) методом порошковой дифракции нейтронов в интервале температур 300-730 K. Исследованы электрическая поляризация и намагниченность, а также магнитоэлектрический эффект рассматриваемых составов в электрическом (до 110 kV/m) и магнитном (до 14 T) полях при комнатной температуре. Установлено сохранение коллинеарной ферримагнитной структуры с замещением. Обнаружено наличие спонтанной поляризации и сильной взаимосвязи диэлектрической и магнитной подсистем при комнатной температуре. Величина магнитоэлектрического эффекта составляет в среднем около 5%, несколько увеличиваясь с ростом концентрации катионов алюминия. Прецизионные структурные исследования позволили установить причину и механизм возникновения спонтанной поляризации в замещенных гексаферритах бария M-типа BaFe12-xAlxO19 (x≤1.2) с коллинеарной ферримагнитной структурой. Работа выполнена при софинансировании Министерства образования и науки РФ по программе повышения конкурентоспособности НИТУ "МИСиС" среди ведущих мировых научно-образовательных центров (N К4-2015-040 и К3-2016-019) и при поддержке грантов БРФФИ (N Ф15Д-003) и ОИЯИ (N 04-4-1121-2015/2017). Л.В. Панина благодарит правительство РФ за поддержку в рамках государственного заказа по организации научной работы. DOI: 10.21883/FTT.2017.04.44274.328