bluuebunny/crossref_metadata_2025 huggingface dataset:
Thermography Testing of a Test Stand for Determining the Efficiency of Heat Recuperators
Authors: Zbrowski Andrzej , Zacharski Szymon
Published: November 2014

The article presents the use of thermographic technique as a method used to study the temperature distribution on the surface of the elements of a prototype system for testing air-handling units with heat recovery. Based on the research methodology of prototype devices developed at the Institute for Sustainable Technologies – National Research Institute, the system’s components constituting a potential source of failure connected with thermal insulation were identified. The article presents the infrared testing results of thermal imaging for a calorimeter chamber recreating real working conditions of a recuperation station and conduits linking the scrutinized stations tested with the chambers. The use of thermography to diagnose failure spots in the thermal insulation of housings, thermal bridges, and leakages of recuperators is described. The results were used to determine the actions to improve the energy consumption index of the station.
Teleoperation in Remote Steering System Built in Unmanned Land Vehicles
Authors: Bartnicki Adam
Published: November 2014

Unmanned ground platforms are increasingly used to perform tasks under direct threat to the operator’s life and health. Separating an operator from a controlled machine places high demands to its steering system. The requirement of reliability put to such platforms in terms of potential threats requires their steering systems to be very precisely controlled and tested at the stage of construction. The key element in the steering process of unmanned ground platforms are surroundings display systems that determine the success of conducting rescue operations. This paper presents an unmanned ground platform controlled by remote operator.
Simulators of Industrial Processes
Authors: Dzierżek Kazimierz
Published: November 2014

The paper presents ways to simulate objects and industrial processes. The use of simulation in the didactic process is to support the study of programming and visualization processes. It allows one to familiarize students with aspects of the key components of an industrial process, and it allows a better understanding of the algorithms process.
System for Automatic Web Guiding for Roll-to-Roll Machine Working in a Start-Stop Mode
Authors: Neska Mirosław , Majcher Andrzej
Published: November 2014

Web guiding used in roll-to-roll material processing machinery is connected with a number of issues including the maintenance of the web tension, the precision of the lateral web displacement, the accuracy of transport positioning of the web, and the selection of web transport velocity. The article presents the precision of the lateral web displacement issue during the start-stop work mode of the web transport. A model of a system for automatic web guiding is shown. The requirements of the lateral web guiding for transporting material over rollers in a processing machine working in a start-stop mode are presented. The control system is discussed, particularly its hardware structure and behaviour. The obtained functionality of the control system enables its application in roll-to-roll material processing machines, working either in the start-stop mode or continuously.
Modelling of Heat Flow in Bundles of Round Steel Bars Including the Formation of Scale Layer
Authors: Benduch Agnieszka , Wyczółkowski Rafał , Jowsa Jan
Published: November 2014

The article presents a proposal of a mathematical model describing the complex heat flow within the area of steel bar bundles. The model is based on an analysis of the thermal resistances defined for mechanisms of heat transfer present in the discussed medium. A bundle is considered a porous medium with a granular structure. Taking into account the modes of heat flow, we consider the following: thermal conduction in a solid phase (steel and scale), thermal conduction in a liquid phase (gas), and thermal radiation and the contact conduction in the areas of bar contact. The essence of the discussed model is the consideration of the phenomenon of scale, which is formed on the surface of the heated bars. The final result of the described calculation procedure is the value of the effective thermal conductivity kef. This parameter quantitatively expresses the heat flow in the area of the bars bundle and constitutes its basic thermal property. The value of kef is necessary for the optimization of heating a bundle of bars.
The Missional congregation in the South African context
Authors: Van Niekerk Attie
Published: November 2014

The term missional has come into use over the last years in the Dutch Reformed Church in South Africa and the Department of Science of Religion and Missiology of the Faculty of Theology at the University of Pretoria. This term refers to the role of the local congregation in the local community or communities and is used with, or in the place of, the term missionary, which traditionally referred to the sending out of a missionary to some or other place. The use of the term missional includes specific views on the goal of mission, what mission is and how it should be done. In this article it is argued that this approach can be seen as a new wave of mission within the South African context, and that it is related to developments in many parts of the global church.
The harvest and the kingdom: An interpretation of the Sower (Mk 4:3b–8) as a parable of Jesus the Galilean
Authors: Van Eck Ernest
Published: November 2014

This article attempts to read the parable of the Sower (Mk 4:3b–8) as a parable of the historical Jesus. In this reading, the focus is different from almost all previous interpretations of the parable. It is proposed that the Sower should not be understood in terms of realistic agricultural practices in 1st century Palestine, but in terms of the realism of the political, social and economic world in which the parable is told by Jesus. The conclusion reached is that the parable asks its first hearers to align themselves with the kingdom of God, and describes what the results of this decision can be. In a world with little choice, the parable gives a vision on how to cope in an exploitative world.
Crossing over; taking refuge: A contrapuntal reading
Authors: Wainwright Elaine M.
Published: November 2014

In this article, I undertake a contrapuntal reading (a type of reading developed within post-colonial studies) engaging the Gospel of Matthew and the current global and local contexts of migration. The work demonstrates the mode and the significance of such readings and ways in which the approach could be brought to bear in a range of contemporary contexts and in relation to any number of current global and local issues.
The forgotten struggle of Albert Geyser against racism and apartheid
Authors: Van Aarde Andries G. , De Villiers Pieter G.R. , Buitendag Johan
Published: November 2014

Albertus (Albert) Stephanus Geyser (10 Feb. 1918 – 13 June 1985) was a South African cleric, scholar and anti-apartheid theologian. On 17 February 2014 his alma mater, the Faculty of Theology of the University of Pretoria, presented the first commemoration lecture in tribute to the legacy of A.S. Geyser. This article portrays the décor of this commemoration. The article addresses the need to recall his contributions by discussing his prestigious career as a young academic, his transformation into an opponent of apartheid, the opposition against and persecution of him and his protest against apartheid. It discusses Geyser’s conviction that apartheid could not be justified on the basis of the Bible and theological grounds. His activism is rooted in his biblical thought. The article reflects on Geyser’s view that the church could be a powerful presence in the state and world while not compromising its message and preaching of the gospel of peace and love.
Mission as local economic development in the City of Tshwane: Towards fostering a grass roots, ‘glocal’ alternative vision, with specific reference to Luke 16:19–31
Authors: Mangayi Lukwikilu C.
Published: November 2014

This article analyses and reflects missiologically on the City of Tshwane’s economy, in terms of its priorities and strategies. It points out that it is to the detriment of local communities that Tshwane’s economy has become a replica of the national economy which is essentially growth-focused and structured to service the global market. It also discusses possibilities for the urban church to be involved in addressing this situation as it wrestles with the question: What role can the church play towards fostering a grass roots, ‘glocal’ alternative vision to the current local economic system? Responding to this question, this article argues that the church, drawing from theological/missiological resources and hermeneutic insights on biblical texts, such as Luke 16:19–31, and on the concept of God’s economy, can steer such an alternative vision for the economy of the City of Tshwane. It ends by demonstrating how the church can engage the issues of local economic development in a practical way, which will lead to an alternative reality where shared prosperity and inclusion are attained.
Informal community-based early childhood development as a focus for urban public theology in South Africa
Authors: Van der Walt J.P. , Swart Ignatius , De Beer Stephan
Published: November 2014

This article highlights important dimensions of public theology and shows how the identified dimensions are relevant to the specific situation of informal early childhood development (ECD) facilities in a South African urban setting. The article considers the contributions and challenges of informal community-based ECD on the basis of research conducted in the Rustenburg/Phokeng area of the North West province of South Africa. It critically discusses the sociocultural discourses and legislation regulating ECD centres, by focusing on the constraints put on informal ECD service providers. It concludes by considering ways in which urban public theology should act to serve, strengthen and advocate this vitally important, yet informal, sector.
Your sister in Babylon sends her love: Towards prophetic solidarity in post-apartheid South Africa
Authors: Tshehla Maarman S.
Published: November 2014

How does a self-respecting Christian from Galilee who now finds himself based near the seat of empire relate to power in light of his faith? How are his admonishments, especially those which relate to the public arena, to be appropriated by those living on the periphery of the empire? I reflect on these questions from the vantage point of a South Africa in which on the one hand erstwhile prophets are being haunted by the vagaries of power and on the other the Church is apparently as powerless as never before.
Towards a fusion of horizons: Thematic contours for an urban public theological praxis-agenda in South Africa
Authors: De Beer Stephan , Swart Ignatius
Published: November 2014

This article proposes a ‘fusion of horizons’ in constructing urban public theologies in South Africa. This is done through the introduction of five interrelated themes that have emerged from the on-going knowledge and idea production by a distinguishable counterpoint in contemporary scholarly, intellectual and activist engagement with the urban, in the authors’ own South African context but also wider internationally. In advancing a praxis-agenda for urban public theology, the authors subsequently identify the following, albeit not exhaustive, themes: southern urbanisms and the factor of unprecedented urban migration; ‘right to the city’ and urbanisation from below; a reclaiming of the commons; the making of ‘good cities’; and actors of faith in relation to urban social life.
Parietal pilomyxoid astrocytoma with recurrence in 10 months: A case report and review of literature
Authors: Patibandla Mohana , Thotakura Amit , Uppin Megha , Challa Sundaram , Addagada Gokul , Nukavarapu Manisha
Published: November 2014

Pilomyxoid astrocytoma (PMA) is a new entity described in WHO 2007 classification of brain tumors. Pilocytic astrocytoma (PA) and PMA share many histopathological features with a few differences in histopathology and behavior of the tumor. This tumor is commonly located in the hypothalamic chiasmatic region. PMA behaves more aggressively than PA, with shorter progression-free survival as well as a higher rate of recurrence and CNS dissemination. We describe a case of PMA in a 10-year-old male involving left parietal lobe presenting with raised ICP features along with the follow-up. Patient was symptom free after 7 months of postoperative and 5½ months of post-radiation. The unusual site and atypical Magnetic resonance imaging features are distinctive in this case report.
Tentorial meningioma presenting as hemifacial spasm: An unusual clinical scenario
Authors: Nayak Raghavendra , Chaudhuri Anupkumar , Chattopadhyay Aniruddha , Ghosh Samarendranath
Published: November 2014

Hemifacial spasm (HFS), which is a rare clinical entity, occurs most commonly due to vascular structures at facial nerve root entry zone. Tumor as a cause of HFS is rarely described in the literature. Here, we describe an unusual case of HFS which is caused by contralateral tentorial meningioma. The pathology, etiology, and surgical treatment have been discussed.
Twistor transforms of quaternionic functions and orthogonal complex structures
Authors: Gentili Graziano , Salamon Simon , Stoppato Caterina
Published: November 2014

The theory of slice-regular functions of a quaternion variable is applied to the study of orthogonal complex structures on domains

\Omega

of

\mathbb R^4

. When

\Omega

is a symmetric slice domain, the twistor transform of such a function is a holomorphic curve in the Klein quadric. The case in which

\Omega

is the complement of a parabola is studied in detail and described by a rational quartic surface in the twistor space

\mathbb CP^3

.
A link invariant with values in the Witt ring
Authors: Collinet Gaël , Guillot Pierre
Published: November 2014

Using Maslov indices, we show the existence of oriented link invariants with values in the Witt rings of certain fields. Various classical invariants are closely related to this construction. We also explore a surprising connection with the Weil representation
Estimates for $p$-Laplace type equation in a limiting case
Authors: Farroni Fernando , Greco Luigi , Moscariello Gioconda
Published: November 2014

We study the Dirichlet problem for a

p

-Laplacian type operator in the setting of the Orlicz–Zygmund space

\mathscr{L}^q\log^{-\alpha}\mathscr{L} \left(\Omega,\mathbb R^N\right)

,

q >1

and

\alpha>0

. More precisely, our aim is to establish under which assuptions on

\alpha>0

existence and uniqueness of the solution are assured.
Trends in Gambling Behavior among College Student-Athletes: A Comparison of 2004 and 2008 NCAA Survey Data
Authors: Shead N. Will , Derevensky Jeffrey L. , Paskus Thomas S.
Published: November 2014

Two large samples of National Collegiate Athletic Association (NCAA) student-athletes in 2004 (N = 18,916) and 2008 (N = 17,675) were surveyed about their gambling behavior. A cross-comparison highlighted gambling trends among college-student athletes across the four-year span. Overall, past-year and weekly gambling rates were lower in 2008 compared to 2004. There were no within-gender differences in the proportion of individuals at-risk or meeting criteria for a gambling problem between 2004 (4.0% males, 0.3% females) and 2008 (3.8% males, 0.4% females). Participation rates were higher in 2004 for all gambling activities, except for past-year Internet gambling and sports wagering, which increased in 2008 among males. Across sports, gambling participation was notably highest among golfers of both genders. Collectively, the results suggest that gambling activity among student-athletes is on a downward trend in spite of ongoing expansion of gambling opportunities.
Relations between erythemal UV dose, global solar radiation, total ozone column and aerosol optical depth at Uccle, Belgium
Authors: De Bock V. , De Backer H. , Van Malderen R. , Mangold A. , Delcloo A.
Published: November 2014

Abstract. At Uccle, Belgium, a long time series (1991–2013) of simultaneous measurements of erythemal ultraviolet (UV) dose (Sery), global solar radiation (Sg), total ozone column (Q_{O3}$) and aerosol optical depth (τaer) (at 320.1 nm) is available, which allows for an extensive study of the changes in the variables over time. Linear trends were determined for the different monthly anomalies time series. Sery, Sg and QO3 all increase by respectively 7, 4 and 3% per decade. τaer shows an insignificant negative trend of −8% per decade. These trends agree with results found in the literature for sites with comparable latitudes. A change-point analysis, which determines whether there is a significant change in the mean of the time series, is applied to the monthly anomalies time series of the variables. Only for Sery and QO3, was a significant change point present in the time series around February 1998 and March 1998, respectively. The change point in QO3 corresponds with results found in the literature, where the change in ozone levels around 1997 is attributed to the recovery of ozone. A multiple linear regression (MLR) analysis is applied to the data in order to study the influence of Sg, QO3 and τaer on Sery. Together these parameters are able to explain 94% of the variation in Sery. Most of the variation (56%) in Sery is explained by Sg. The regression model performs well, with a slight tendency to underestimate the measured Sery values and with a mean absolute bias error (MABE) of 18%. However, in winter, negative Sery are modeled. Applying the MLR to the individual seasons solves this issue. The seasonal models have an adjusted R2 value higher than 0.8 and the correlation between modeled and measured Sery values is higher than 0.9 for each season. The summer model gives the best performance, with an absolute mean error of only 6%. However, the seasonal regression models do not always represent reality, where an increase in Sery is accompanied with an increase in QO3 and a decrease in τaer. In all seasonal models, Sg is the factor that contributes the most to the variation in Sery, so there is no doubt about the necessity to include this factor in the regression models. The individual contribution of τaer to Sery is very low, and for this reason it seems unnecessary to include τaer in the MLR analysis. Including QO3, however, is justified to increase the adjusted R2 and to decrease the MABE of the model.
A size-composition resolved aerosol model for simulating the dynamics of externally mixed particles: SCRAM (v 1.0)
Authors: Zhu S. , Sartelet K. N. , Seigneur C.
Published: November 2014

Abstract. A Size-Composition Resolved Aerosol Model (SCRAM) for simulating the dynamics of externally-mixed atmospheric particles is presented. This new model classifies aerosols by both composition and size, based on a comprehensive combination of all chemical species and their mass-fraction sections. All three main processes involved in aerosol dynamics (coagulation, condensation/evaporation and nucleation) are included. The model is first validated by comparison with a reference solution and with results of simulations using internally-mixed particles. The importance of representing the mixing state when modelling atmospheric aerosol concentrations is investigated in a box model simulation using data representative of air pollution in Greater Paris.
Snowmelt onset over Arctic sea ice from passive microwave satellite data: 1979–2012
Authors: Bliss A. C. , Anderson M. R.
Published: November 2014

Abstract. An updated version (Version 3) of the Snow Melt Onset Over Arctic Sea Ice from SMMR (Scanning Multichannel Microwave Radiometer) and SSM/I-SSMIS (Special Sensor Microwave/Imager-Special Sensor Microwave Imager/Sounder) Brightness Temperatures data set is now available. The data record has been reprocessed and extended to cover the years 1979–2012. From this data set, a statistical summary of melt onset (MO) dates on Arctic sea ice is presented. The mean MO date for the Arctic Region is 13 May (132.5 DOY – day of year) with a standard deviation of ±7.3 days. Regionally, mean MO dates vary from 15 March (73.2 DOY) in the St. Lawrence Gulf to 10 June (160.9 DOY) in the Central Arctic. Statistically significant decadal trends indicate that MO is occurring 6.6 days decade−1 earlier in the year for the Arctic Region. Regionally, MO trends are as great as −11.8 days decade−1 in the East Siberian Sea. The Bering Sea is an outlier and MO is occurring 3.1 days decade−1 later in the year.
Argumentación, principios y razonabilidad. Entre la irracionalidad y la racionalidad
Authors: Cianciardo Juan
Published: November 2014

En el presente trabajo pretendo dar cuenta sumariamente de ambigüedades, aporías y dificultades de difícil resolución a las que se enfrenta el operador jurídico hoy —es decir, en el contexto que proporciona el Esta- do constitucional— y de los ejes centrales de las distintas alternativas de solución teórico-prácticas que se han ofrecido. El intento de resolver las indeterminaciones a través del recurso a los principios constitucionales abre un abanico de problemas. ¿Cómo explicar la interrelación entre los principios jurídicos y las reglas? Se expondrán y compararán las respuestas que han dado a esa pregunta el irracionalismo, el racionalismo y quienes se enrolan en la vía de la razonabilidad.
Exact Solutions of Electro-Osmotic Flow of Generalized Second-Grade Fluid with Fractional Derivative in a Straight Pipe of Circular Cross Section
Authors: Wang Shaowei , Zhao Moli , Li Xicheng , Chen Xi , Ge Yanhui
Published: November 2014

The transient electro-osmotic flow of generalized second-grade fluid with fractional derivative in a narrow capillary tube is examined. With the help of the integral transform method, analytical expressions are derived for the electric potential and transient velocity profile by solving the linearized Poisson-Boltzmann equation and the Navier-Stokes equation. It was shown that the distribution and establishment of the velocity consists of two parts, the steady part and the unsteady one. The effects of retardation time, fractional derivative parameter, and the Debye-Hückel parameter on the generation of flow are shown graphically.
Intense Isolated Ultrashort Attosecond Pulse Generation in a Multi-Cycle Three-Colour Laser Field
Authors: Zhang Gang-Tai
Published: November 2014

An efficient method for generating an intense isolated ultrashort attosecond pulse is presented theoretically. By adding a 267 nm controlling pulse to a multi-cycle two-colour field, not only the spectral cutoff and the yields of the harmonic spectrum are evidently enhanced, but also the selection of the single quantum path is realised. Then a high-efficiency supercontinuum with a 504 eV bandwidth and smooth structure is obtained, which enables the production of an intense isolated 30 as pulse. In addition, the influences of the laser parameters on the supercontinuum and isolated attosecond pulse are investigated.
Studies on the mycoflora of meadow soil in Kazuń
Authors: Ciborska Ewa , Zadara Maria
Published: November 2014

Results are reported of two-year qualitative and quantitative studies of the soil micoflora on mown and unmown meadows overgrown with vegetation of the Arrhenathererum medioeuropaeum association (Br.-Bl. 1919) Oberd. 1952. On the unmown plot the mycoflora was more abundant and varied than on the mown one. Atmospheric conditions were found to exert an influence of the specific composition of the mycoflora. No influence of mowing on the number of colonies of the isolated fungi could be demonstrated.
The geographical distribution of Taphrinales in Poland
Authors: Sałata Bogusław
Published: November 2014

The geographical distribution of the occurrence in Poland of the species of the Taphrinales order was discussed in the paper. Both the distribution of the host plants and the total distribution of these fungi was examined.
New species of Bactrodesmium, Corynespora, Septonema and Taeniolella
Authors: Borowska Alicja
Published: November 2014

New species of dematiaceous Hyphomycetes occurring on dead wood of deciduous trees in Poland are described: Bactrodesmium xerophilum, Corynespora quercicola, Septonema binum and Taeniolella dichotoma.
General geographical distribution, origin and evolution of the Taphrinales
Authors: Sałata Bogusław
Published: November 2014

General geographical distribution, origin and evolution of Taphrinales are the subject of the paper. The distribution of holarctic species has been more carefully analyzed. Range spectra of the flora of Taphrinales of several regions of Europe have also been included. The problems connected with the orgin and evolution of Taphrinales are discussed on the basis of the more important hypotheses concerning phylogenesis of Ascomycetes.
The effects of various media on sporulation and growth of Pyricularia oryzae Cavara
Authors: Ibrahim A. N. , Ashour W. A. , Abbel-Hak T. M. , El Rafaei M. I.
Published: November 2014

The authors have investigated the effect of many media on the development of 10 isolates of Pyricularia oryzae in order to obtain abundant sporulation, to facilitate the determination of physiological races and preparation of phytopathological tested.
Parasitic fungi of the xerothermic associations in the Lublin Highlands
Authors: Romaszewska-Sałata Joanna
Published: November 2014

The paper presents the results of the investigations in the years 1970-1972 carried out on the flora of parasitic fungi found in the xerothermic associations in the Lublin Highlands (South-Eastern Poland). The work also discusses the occurence of these parasitic fungi in Poland with respect to the geography of the host plant.
Badania właściwości fungistatycznych gleby
Authors: Kanaujia R. S.
Published: November 2014

This paper presents the results of study the effect of rhizosphere of Pennisetum typhoides on the soil fungistasis. The fungistasis of three different regions of the root has been investigated in relation to rhizosphere effect.
Further observations on Nellymyces megaceros and its parasite - Rozellopsis uliginosa sp.nov.
Authors: Batko Andrzej
Published: November 2014

The rhipidiaceous fungus Nellymyces megaceros Batko, described in the author's previous study has been again found at the type locality in 1971. Observations carried out on this material in the course of fungus population development, have shown that all of the smooth zoosporangia occuring in the 1970 (type) material had been attacked by a holocarpid biflagenate parasitic fungus, and had their openings slightly modified. In the present study, the author describes he.91thy smooth sporangia of N. megaceros, and zoospores forming within them, he describes the above-mentioned parasitic fungus - Rozellopsis uliginosa sp. nov., erects a hypothesis explaining the specific characters of the life cycle of N. megaceros and populations dynamics in this parasite-host system, and resolves the controversal questions of taxonomy of holocarpic parasitic chytrids and lagenidial fungi. In connection with the latter question. two new genera have been established - Skirgiellia and Skirgiellopsis.
Fungi pathogenic for Zinnia elegans L.
Authors: Łacicowa Barbara , Filipowicz Antoni , Wagner Anna
Published: November 2014

Among fungi isolated from specimens of Zinnia elegans L. dying due to rotting of the stem base and root neck the most frequent were Sclerotinia sclerotiorum, Fusarium culmorum, F. solani, F. oxysporum and Alternaria zinniae. Alternaria zinniae has been found to very harmful to these plants. The fungus harmed the root neck and stem base and caused formation of spots on above-ground organs, especially on leaves. Sclerotinia sclerotiorum and Fusarium culmorum also proved to be very harmful, especially for seedlings.
Bone Marrow Regeneration Promoted by Biophysically Sorted Osteoprogenitors From Mesenchymal Stromal Cells
Authors: Poon Zhiyong , Lee Wong Cheng , Guan Guofeng , Nyan Lin Myint , Lim Chwee Teck , Han Jongyoon , Van Vliet Krystyn J.
Published: November 2014

Human tissue repair deficiencies can be supplemented through strategies to isolate, expand in vitro, and reimplant regenerative cells that supplant damaged cells or stimulate endogenous repair mechanisms. Bone marrow-derived mesenchymal stromal cells (MSCs), a subset of which is described as mesenchymal stem cells, are leading candidates for cell-mediated bone repair and wound healing, with hundreds of ongoing clinical trials worldwide. An outstanding key challenge for successful clinical translation of MSCs is the capacity to produce large quantities of cells in vitro with uniform and relevant therapeutic properties. By leveraging biophysical traits of MSC subpopulations and label-free microfluidic cell sorting, we hypothesized and experimentally verified that MSCs of large diameter within expanded MSC cultures were osteoprogenitors that exhibited significantly greater efficacy over other MSC subpopulations in bone marrow repair. Systemic administration of osteoprogenitor MSCs significantly improved survival rates (>80%) as compared with other MSC subpopulations (0%) for preclinical murine bone marrow injury models. Osteoprogenitor MSCs also exerted potent therapeutic effects as “cell factories” that secreted high levels of regenerative factors such as interleukin-6 (IL-6), interleukin-8 (IL-8), vascular endothelial growth factor A, bone morphogenetic protein 2, epidermal growth factor, fibroblast growth factor 1, and angiopoietin-1; this resulted in increased cell proliferation, vessel formation, and reduced apoptosis in bone marrow. This MSC subpopulation mediated rescue of damaged marrow tissue via restoration of the hematopoiesis-supporting stroma, as well as subsequent hematopoiesis. Together, the capabilities described herein for label-freeisolation of regenerative osteoprogenitor MSCs can markedly improve the efficacy of MSC-based therapies.
Le rat est mort ! Ou le jeu de la tradition dans l’Hamlet de William Shakespeare (Notes de mise en scène)
Authors: Iovita Cristina
Published: November 2014

L’article décrit le processus de création du spectacle Hamlet de William Shakespeare adapté et mis en scène par Cristina Iovita au Théâtre de l’Utopie (Montréal, mars-avril 2010). La première partie examine les rapports entre le personnage de Polonius et celui de Pantalon, personnage typique de la commedia dell’arte qui donne la « clé » de l’adaptation scénique. La deuxième partie présente la reconstruction du texte de Shakespeare sur les structures de base de la commedia dell’arte, structures identifiées et inspirées par la « scène des acteurs » (Acte II, Scène 2) du texte original. La troisième partie suit les innovations de style amenées par l’insertion dans la trame scénique du tango argentin, une danse narrative de type populaire exprimant les rites de la passion. La conclusion porte sur le potentiel d’actualisation du répertoire classique par la récupération des moyens scéniques traditionnels.
L’esthétique théâtrale chez le jeune Albert Camus
Authors: Bastien Sophie
Published: November 2014

Cet article expose d’abord les nombreuses activités créatrices qu’a exercées Albert Camus en lien avec le théâtre, tant comme art scénique que comme genre littéraire. Sa partie centrale, ensuite, se penche sur la production de la première troupe camusienne, le « Théâtre du Travail », dans les années trente à Alger. En examinant ce pan de la carrière de Camus que la critique a éludé, elle met au jour une esthétique surprenante. L’article montre finalement en quoi ces audaces formelles annoncent des traits fondamentaux du répertoire camusien plus connu (celui de la décennie quarante), et se retrouvent aussi chez l’homme de métier qui prospère au Festival d’Angers dans les années cinquante.
From the decision to the results: narrative of adult men about vasectomy
Authors: Cícero Anna Carmen Vicente F. P. Pereira , Mandadori Franciele , Marcon Sonia Silva , Barreto Mayckel da Silva
Published: November 2014

Objetivo: descrever o papel da família na opção pela vasectomia, o período de aconselhamento profissional e os resultados diante do procedimento na perspectiva de homens adultos. Método: investigação descritiva e exploratória de abordagem qualitativa. Os dados foram coletados em agosto de 2013, por meio de entrevista, junto a 13 homens que haviam sido submetidos à esterilização cirúrgica há, no mínimo, seis meses, em um município paranaense. Resultados: a família representou para os homens fator decisório ante a escolha pela cirurgia, pois foi descrita como suporte emocional. Apesar de o enfermeiro não ter participado do processo de aconselhamento para a realização da vasectomia, o procedimento cirúrgico e seus resultados foram descritos como satisfatórios. Conclusão: os enfermeiros necessitam participar mais ativamente do aconselhamento aos homens que buscam os serviços de saúde para a realização da vasectomia e a família deve ser incluída neste processo por constituir suporte para a decisão masculina.
Oral hygiene to a hospitalized dependent patient: perceptions of a nursing team
Authors: Passos Silvia Silva Santos , Carvalho Evanilda Souza de Santana , Sadigursky Dora , Nobre Vera Patricia Carneiro Cordeiro , Leite Gesidalva Araujo dos Santos
Published: November 2014

Objetivo: Discutir a percepçãoda equipe de enfermagem sobre a higiene oral de pacientes dependentes hospitalizados. Método: Estudo descritivo, qualitativo, realizado nas clínicas médica e cirúrgica de um hospital do interior da Bahia, no período de março a julho de 2006, dados obtidos através da entrevista semiestruturada aplicada a dezessete participantes, complementados pela observação estruturada. Resultado: Após a análise de conteúdo temática emergiram três categorias que revelam: a higiene oral como cuidado importante para o paciente; a higiene oral evita o desconforto da equipe na prestação de outros cuidados; e a higiene oral pode ser delegada para a família. Conclusão: No contexto estudado não existe protocolo para realização desse cuidado, os odores advindos da boca do paciente definem sua periodicidade, a higiene oral é realizada por familiares e as enfermeiras não participam diretamente deste cuidado.
Actions on nutrition education with children in daycare university – representatives’ and teachers’ perception about the playful
Authors: Sá Selma Petra Chaves , Azeredo Elizabeth Azevedo , Lavoyer Cristina Escudeiro
Published: November 2014

Objetivos: Analisar as ações educativas nutricionais implementadas com pré- escolares em creche universitária na visão dos responsáveis e descrever a percepção dos responsáveis dos pré-escolares sobre as ações educativas aplicadas. Método: Estudo com abordagem qualitativa, descritiva utilizando a técnica de Grupo Focal com os responsáveis e de entrevista semi estruturada com os professores da Creche daUniversidade Federal Fluminense que foram submetidos às ações educativas. Realizou-se  análise de conteúdo segundo Bardin além do pensamento de Vygostki relacionado ao processo de ensino aprendizagem. Resultados: A partir da análise emergiram duas categorias: Ações em Educação Alimentar e Nutricional na percepção dos professores; e Ações em Educação Alimentar e Nutricional – as mudanças no hábito alimentar na visão dos professores. Conclusões: pode-se dizer que houve o aprendizado através das atividades lúdicas em um momento de descontração para crianças onde o ato culinário foi uma pratica de integração social.
Chronic kidney patients in hemodialysis: a study on the mode of psychosocial theory of Roy
Authors: Frazão Cecília Maria Farias de Queiroz , Paiva Maria das Graças Mariano Nunes de , Sá Jéssica Dantas de , Bezerra Clarissa Maria Bandeira , Silva Fernanda Beatriz Batista Lima e , Lira Ana Luisa Brandão de Carvalho
Published: November 2014

Objetivo: Identificar os problemas adaptativos do modo psicossocial do modelo de Roy em pacientes renais crônicos em hemodiálise. Métodos: Estudo do tipo transversal, realizado com 178 pacientes de um centro de diálise do nordeste do Brasil. Resultados: Foram identificados três problemas adaptativos, sendo dois do modo de autoconceito: disfunção sexual e baixa autoestima; e um do modo de desempenho de papel: falha no papel. Conclusões: Os problemas adaptativos falha no papel, disfunção sexual e baixa autoestima se remetem à presença de uma doença cônica e a um tratamento invasivo, uma vez que essas condições afetam diretamente no estilo de vida do indivíduo. Descritores: Teoria de enfermagem; Diálise renal; Insuficiência renal crônica.
Psychological and nursing assistance to the elderly in primary care
Authors: Da Silva Patrick Leonardo Nogueira , Cordeiro Simone Queiroz , Souto Simone Guimarães Teixeira , Gonçalves Renata Patrícia Fonseca , Mota Écila Campos , De Oliveira Ricardo Soares
Published: November 2014

Objetivo: Descrever o processo de assistência de enfermagem e também psicológica ao idoso na Atenção Primária. Método: Pesquisa descritiva de caráter bibliográfica. Foram analisados 22 artigos publicados entre os anos de 1998 a 2010. Resultados: A Estratégia Saúde da Família tem se configurado como um dos mais importantes referenciais da organização da Atenção Primária brasileira. A assistência de enfermagem é uma ação prática que, de acordo com a demanda da clientela, pode também ser reconhecida por uma dimensão não apenas biológica. As atividades que envolvem a Psicologia clínica vêm sendo ofertadas à Atenção Primária à Saúde oferecendo atendimento psicoterápico gratuito à população que a procura, fornecendo assim possibilidades de construção e intervenções diretas nas comunidades. Conclusão: Conclui-se que os cuidados a serem prestados a uma pessoa idosa devem visar à manutenção de seu estado de saúde, independência funcional e autonomia junto à família e à equipe multiprofissional.
Psychiatric nursing practices in the paradigmatic transition: a study of theses and dissertations
Authors: Dutra Virginia Faria Damasio , Oliveira Rosane Mara Pontes
Published: November 2014

Trata-se de um estudo bibliográfico, de teses e dissertações, selecionadas no portal CAPES, utilizado a expressão Enfermagem Psiquiátrica, em maio de 2012, com o objetivo de analisar as práticas da enfermagem psiquiátrica na transição paradigmática do campo da saúde mental e discutir as possíveis mudanças das práticas de enfermagem psiquiátrica documentadas nas teses e dissertações do portal CAPES. Foi selecionado 110 produtos, dos 288 achados, que abordavam a prática. Na Análise Temática evidenciaram-se os núcleos de sentidos: ferramentas para o cuidado de enfermagem, papel do enfermeiro, práticas hospitalar, transição do modo hospitalocêntrico para o psicossocial, e rede de saúde. Estes foram reagrupados em duas categorias temáticas: as práticas hospitalocêntricas e as práticas psicossociais. Após 2001, houve maior concentração de estudos sobre a transição paradigmática, no entanto, as práticas da enfermagem psiquiátrica, que teve sua gênese no hospital, continuam a existir nos serviços psicossociais com as devidas transformações do atual paradigma.
Endovascular Stroke Thrombectomy for Patients With Large Ischemic Core
Authors: Chen Huanwen , Lee Jin Soo , Michel Patrik , Yan Bernard , Chaturvedi Seemant
Published: August 2024

Importance

Recently, 6 randomized clinical trials—RESCUE-Japan-LIMIT (Recovery by Endovascular Salvage for Cerebral Ultra-Acute Embolism—Japan Large Ischemic Core Trial), ANGEL-ASPECT (Trial of Endovascular Therapy for Acute Ischemic Stroke With Large Infarct), SELECT2 (Trial of Endovascular Thrombectomy for Large Ischemic Strokes), TESLA (Thrombectomy for Emergent Salvage of Large Anterior Circulation Ischemic Stroke), TENSION (Endovascular Thrombectomy for Acute Ischemic Stroke With Established Large Infarct), and LASTE (Large Stroke Therapy Evaluation)—have concluded their investigations on the efficacy and safety of endovascular thrombectomy (EVT) for the treatment of patients with ischemic stroke, anterior-circulation large vessel occlusions, and large areas of ischemic changes defined as an Alberta Stroke Program Early Computed Tomography Score (ASPECTS) of 5 or less. Overall, the results appeared to be positive, with 5 of the 6 trials meeting their primary efficacy end point, and 1 trial that was a near miss. However, questions remain regarding how these trial results should be interpreted and incorporated into routine clinical practice.

Observations

In this narrative review and analysis of published trials, important nuances of the available clinical data were identified, and important areas of lingering uncertainty were highlighted, including the efficacy and safety of EVT for patients with a low ASPECTS score in late treatment windows and those with large core volumes. Also emphasized was the possibly important role of advanced neuroimaging modalities such as perfusion and magnetic resonance imaging when making EVT treatment decisions for select patients with low ASPECTS scores.

Conclusions and Relevance

Recent trial data provide strong evidence that EVT is safe and effective for patients with anterior, large vessel–occlusion stroke and low ASPECTS scores who present within 6 hours from stroke onset. However, patient outcomes often remain poor despite EVT treatment. The efficacy and safety of EVT for patients with low ASPECTS scores who present beyond 6 hours of stroke onset remain uncertain, and the current trial data seem too scarce to justify forgoing advanced stroke imaging during this extended time window. Furthermore, the efficacy and safety of EVT for patients with large core volumes (100 mL or greater) or M2 occlusions (ie, occlusions of the second segment of the middle cerebral artery) remain uncertain. Future research to better identify patients likely to meaningfully respond to EVT is needed to further optimize the stroke triage process and health care resource utilization.
Parkinsonism Following Chimeric Antigen Receptor T Cell Therapy
Authors: Gudera Jonas A. , Baehring Joachim M. , Karschnia Philipp
Published: August 2024

This case report describes a 67-year-old woman who had received adoptive immunotherapy with chimeric antigen receptor T cells for multiple myeloma and was experiencing parkinsonism-like symptoms.
Inhibition of autophagy as a novel treatment for neurofibromatosis type 1 tumors
Authors: Stevens Megan , Wang Yuanli , Bouley Stephanie J. , Mandigo Torrey R. , Sharma Aditi , Sengupta Sonali , Housden Amy , Perrimon Norbert , Walker James A. , Housden Benjamin E.
Published: August 2024

Neurofibromatosis type 1 (NF1) is a genetic disorder caused by mutation of the NF1 gene that is associated with various symptoms, including the formation of benign tumors, called neurofibromas, within nerves. Drug treatments are currently limited. The mitogen‐activated protein kinase kinase (MEK) inhibitor selumetinib is used for a subset of plexiform neurofibromas (PNs) but is not always effective and can cause side effects. Therefore, there is a clear need to discover new drugs to target NF1‐deficient tumor cells. Using a Drosophila cell model of NF1, we performed synthetic lethal screens to identify novel drug targets. We identified 54 gene candidates, which were validated with variable dose analysis as a secondary screen. Pathways associated with five candidates could be targeted using existing drugs. Among these, chloroquine (CQ) and bafilomycin A1, known to target the autophagy pathway, showed the greatest potential for selectively killing NF1‐deficient Drosophila cells. When further investigating autophagy‐related genes, we found that 14 out of 30 genes tested had a synthetic lethal interaction with NF1. These 14 genes are involved in multiple aspects of the autophagy pathway and can be targeted with additional drugs that mediate the autophagy pathway, although CQ was the most effective. The lethal effect of autophagy inhibitors was conserved in a panel of human NF1‐deficient Schwann cell lines, highlighting their translational potential. The effect of CQ was also conserved in a Drosophila NF1 in vivo model and in a xenografted NF1‐deficient tumor cell line grown in mice, with CQ treatment resulting in a more significant reduction in tumor growth than selumetinib treatment. Furthermore, combined treatment with CQ and selumetinib resulted in a further reduction in NF1‐deficient cell viability. In conclusion, NF1‐deficient cells are vulnerable to disruption of the autophagy pathway. This pathway represents a promising target for the treatment of NF1‐associated tumors, and we identified CQ as a candidate drug for the treatment of NF1 tumors.
Evaluating the Associations Among Dysautonomia, Gastrointestinal Transit, and Clinical Phenotype in Patients With Systemic Sclerosis
Authors: Alvarez‐Hernandez Maria Paula , Adler Brittany , Perin Jamie , Hughes Michael , McMahan Zsuzsanna H.
Published: August 2024

Objective

Our objective was to identify patients with systemic sclerosis (SSc) with a high burden of autonomic symptoms and to determine whether they have a distinct clinical phenotype, gastrointestinal (GI) transit, or extraintestinal features.

Methods

In a prospective cohort of patients with SSc with GI disease, clinical data were systematically obtained at routine visits. Dysautonomia was identified by the Composite Autonomic Symptom Score (COMPASS)‐31questionnaire. GI transit was measured by whole‐gut scintigraphy. Associations between total COMPASS‐31 scores and clinical features, GI symptoms, and transit were evaluated. Comparisons between patients with global autonomic dysfunction (GAD; ≥5 positive COMPASS‐31 subdomains) and those with limited autonomic dysfunction (LAD; <5 positive subdomains) were also studied.

Results

A total of 91 patients with SSc and GI involvement were included (mean age 57 years, 90% female, 74% limited cutaneous disease, 83% significant GI disease [Medsger score ≥2]). The mean COMPASS‐31 score in patients with SSc was higher than controls (38.8 vs 7.2); 33% had GAD, and 67% had LAD. Patients with GAD were more likely to have limited SSc (93% vs 65%; P < 0.01) and have sicca symptoms (100% vs 77%; P = 0.01). Gastric and colonic transit were faster in patients with GAD (P < 0.05). Upper GI involvement (Medsger GI score of 1 or 2) was associated with higher total COMPASS‐31 scores (P = 0.02).

Conclusion

Symptoms of global dysautonomia are seen in up to one‐third of patients with SSc and GI involvement. Identifying specific clinical characteristics associated with GAD in SSc will help to identify a population that may benefit from therapies that modulate the autonomic nervous system.

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Identification of fractional Hammerstein systems with the conformable fractional derivative
Authors: Zhang Zhaoming , Mi Wen , Zheng Wei Xing
Published: August 2024

In this article, we study parameter estimation problems for fractional commensurate Hammerstein systems utilizing the conformable fractional derivative. Two algorithms are investigated: first, the Poisson moment functions (PMF) method, aiming to transfer the fractional derivative of the measurement signal into PMF using the fractional Laplace transform and convolution; second, a proposed new instrumental variable algorithm, which is based on the conformable fractional derivative. Both algorithms have been analyzed and shown to be consistent. A comprehensive complexity analysis is provided for each algorithm. Furthermore, a kind of special time‐varying systems are discussed under the conformable fractional derivative. Finally, an example is given to illustrate the effectiveness of the proposed algorithms.