bluuebunny/crossref_metadata_2025 huggingface dataset:
Nonlinear Dynamic Behaviors of a Marine Rotor-Bearing System Coupled with Air Bag and Floating-Raft
Authors: Zhao W. , Li M. , Xiao L.
Published: September 2015

To understand the nonlinear dynamic mechanism of a rotor-bearing system coupled with air bag and floating-raft, the dynamic characteristics of the system are investigated. This work has two key objectives. First, the vibration mechanism of rotor-bearing system coupled with air bag and floating-raft is investigated by developing a numerical model. Then, the nonlinear dynamics of the system and the effect of several parameters are studied, which includes the steady-state response and its spectrum, the orbit and its Poincaré map, the bifurcation diagram, and largest Lyapunov exponent (LLE). The results show that at low speed the dynamic behavior appears in a single periodic motion, and, with the increase of the speed, the motion becomes quasi-periodic and chaotic. These performances indicate that the air bag and floating-raft introduce some dynamic effects of marine rotor-bearing system.
O impulso e o salto: Boal em Nova Iorque (1953-1955)
Authors: Betti Maria Silvia
Published: September 2015

Este artigo aborda as características do trabalho dos professores, críticos e dramaturgos com os quais Augusto Boal teve contato durante seu período de estudos na Universidade de Columbia, em Nova York, entre 1953 e 1955. 
Considerações sobre História do teatro brasileiro
Authors: Mostaço Edelcio
Published: September 2015

O texto aborda defasagens metodológicas e discursivas existentes no livro História do teatro brasileiro, obra coordenada por João Roberto Faria. Mencionado em dois de seus capítulos, sinto-me na obrigação de refutar as objeções ali presentes, salientando divergências e pontos de vista. 
A missão italiana
Authors: Mostaço Edelcio
Published: September 2015

Esta resenha enfoca o livro A missão italiana, de Alessandra Vanucci, dedicado a situar a presença dos diretores italianos no Teatro Brasileiro de Comédia (TBC) e no teatro brasileiro entre as décadas de 1950 e 1960. Além disso, mostra a formação do Grupo dos Onze na Roma ainda ocupada pelos nazistas e suas primeiras atuações profissionais. A autora desenvolve renovadas estratégias analíticas e derruba alguns mitos ainda persistentes em nossa historiografia.
Masculinity, Materiality, and the Body of Moses
Authors: Graybill Rhiannon
Published: September 2015

The body of the prophet Moses is a site of persistent difficulty. To be sure, at birth, Moses’ body is singled out and described as “good”; at death, his eyesight and vigor alike remain undiminished. But between these two moments, the text is filled with references to Moses’ bodily problems, including a “heavy tongue and impure lips” that threaten his prophetic mission and a glowing face that terrifies the Israelite people. Moses’ body is likewise thematized in the battle against Amalek, the prophet’s affliction with “scale disease” or leprosy, and above all the famous “bridegroom of blood” incident (Exod. 4:24–26). Taken together, these incidents offer a pattern of bodily difficulty and material alterity. Moses’ experience of corporeality exposes the demands that prophecy places upon the body. In particular, prophecy displaces hegemonic masculinity and normative practices of male embodiment. Moses represents an alternate “Mosaic masculinity,” organized around an open, fluid, and vulnerable male body.
William James on How to Study Experience: Integrating Phenomenology of Religion and Radical Empiricism
Authors: Blum Jason N.
Published: September 2015

William James stands at the nexus of two intellectual traditions important to religious studies: phenomenology of religion and radical empiricism. Focusing on James’s work, I identify three essential points of contact between radical empiricism and phenomenology of religion: epoché, the affective character of consciousness, and the inevitably open-ended nature of experience. I argue that these resonances allow them to be integrated, thereby furnishing a more robust and defensible understanding of the category of “experience.” This integrated approach responds to recent criticisms of phenomenology of religion, and describes a complimentary relationship between it and other, explanatory approaches to the study of religion and religious experience.
Theory, Method, and Madness in Religious Studies
Authors: Hart Patrick
Published: September 2015

In the academic study of religion, the words “method” and “theory” possess an immutable, authoritative aura and typically function to amplify the legitimacy of any given study. What is more ambiguous, however, is whether those of us engaged in the study of religion actually have a shared understanding of these terms, and whether we are sufficiently attentive to the way in which we use them. Given this ambiguity, and given how pervasive “method” and “theory” are in our field, scholars of religion should be (in the words of J.Z. Smith) “relentlessly self-conscious” and give some consideration to how our discipline has appropriated these terms. Ultimately, I argue that attention to their genealogy can help us better orient ourselves when it comes to deploying “method” and “theory” in our studies.
“Belittling” or “Undervaluing” in 2 Clem. 1:1-2?
Authors: Rothschild Clare K.
Published: September 2015

Second Clement suffers from a lack of clarity about its historical and literary contexts. The anonymous text’s date and provenance have defied precise determination and, although it is referred to a few times in the history of tradition, it seems not to be cited at all. Moreover, its first two verses maintain a history of translation into modern languages employing expressions long out of date. The word, μικρά occurs four times in the first two verses, twice as part of the expression, μικρὰ φρονεῖν. This article identifies the outmoded nature of current translations of these words and proposes an updated translation that better reflects important new interpretations of the text’s purpose, values, and assumptions.
Orality is No Dead-End
Authors: Eve Eric
Published: September 2015

Paul Foster has recently argued that ‘orality’ (along with memory and the Fourth Gospel) is one of three ‘dead-ends’ in historical Jesus scholarship, and that it is more appropriate to continue to use traditional methods such as form criticism. While some of Foster’s criticisms are valid, he does justice neither to the particular scholars he addresses nor to the wider implications of orality studies for New Testament and Historical Jesus scholarship. It is in any case inconsistent to advocate form criticism while denying the usefulness of orality studies. nt scholarship needs to embrace newer approaches to ancient media studies, not spurn them as ‘dead-ends’.
What Are The Odds?
Authors: Everton Sean F.
Published: September 2015

In 1985 a group of New Testament scholars, who came to be known as the Jesus Seminar, gathered to vote on the authenticity of the sayings of Jesus. Although the Seminar argued that it followed objective rules of evidence, critics have claimed that it did not. This paper investigates these claims using statistical models to evaluate the Seminar’s own voting records. It finds that although the Seminar’s Fellows did follow widely accepted criteria, they were also influenced by their own assumptions about who Jesus was. In particular, they appear to have assumed that Jesus was a non-apocalyptic enfant terrible who spoke in aphorisms and parables and occasionally uttered things that later embarrassed the early Church.
The Principle of Fairness, Political Duties, and the Benefits Proviso Mistake
Authors: Koltonski Daniel
Published: September 2015

Recent debate in the literature on political obligation about the principle of fairness rests on a mistake. Despite the widespread assumption to the contrary, a person can have a duty of fairness to share in the burdens of sustaining some cooperative scheme even though that scheme does not represent a net benefit to her. Recognizing this mistake allows for a resolution of the stalemate between those who argue that the mere receipt of some public good from a scheme can generate a duty of fairness and those who argue that only some voluntary action of consent or acceptance of the good can generate such a duty. I defend a version of the principle of fairness that holds that it is the person’s reliance on a scheme for the provision of some product or service that generates duties of fairness to share in the burdens of sustaining the scheme. And, on this version, the principle of fairness is politically significant: regardless of whether the citizen has a duty to obey the law, she will still have important political duties of fairness generated by her reliance on the various public goods provided by those society-wide cooperative schemes sustained by the sacrifices of her fellow citizens.
Preferences’ Significance Does Not Depend on Their Content
Authors: Williams Evan G.
Published: September 2015

Moral theories which include a preference-fulfillment aspect should not restrict their concern to some subset of people’s preferences such as “now-for-now” preferences. Instead, preferences with all contents—e.g. ones which are external, diachronic, or even modal—should be taken into account. I offer a conceptualization of preferences and preference fulfillment which allows us to understand odd species of preferences, and I give a series of examples showing what it would mean to fulfill such preferences and why we ought to do so.
The Knowers in Charge
Authors: Lynch Michael P. , Sheff Nathan
Published: September 2015

Epistemic Authority: A Theory of Trust, Authority, and Autonomy in Belief. By Linda Trinkaus Zagzebski. New York: Oxford University Press, 2012. Pp. xiii +279. isbn 978–0–19–993647–2.
Assessing the Role of Taste Intensity and Hedonics in Taste–Shape Correspondences
Authors: Velasco Carlos , Woods Andy , Liu Jason , Spence Charles
Published: September 2015

Taste liking influences the way in which people match tastes to shapes. However, taste–shape matching cannot be explained entirely by taste hedonics. Here, we assess whether variations in taste intensity influence such crossmodal correspondences. Participants were presented with five basic tastants in two concentrations and had to rate them on roundness/angularity shape scales, as well as in terms of liking, and intensity. The results revealed that taste quality, intensity, and participants’ liking of the taste significantly predicted the roundness/angularity of the tastants. The results also revealed a positive correlation between perceived intensity and roundness/angularity for each of the tastants except sweet, and a negative correlation between liking and roundness/angularity for all of the tastes. These results are discussed in terms of the mechanism(s) that underlie the crossmodal correspondence between taste and shape.
Phylogenetic and mycogeographical aspects of Lactarius and Rhizopogon associated with Pinus radiata in south-central Chile
Authors: Chávez Daniel , Machuca Ángela , Torres-Mellado Gustavo , Gallardo-Escarate Cristian , Palfner Götz
Published: September 2015

Pinus and Eucalyptus, being grown worldwide for timber and paper pulp industry, are depending on ectomycorrhizal fungi during their entire life cycle; especially Pinus is frequently found to be colonized by highly host-specific root mycobionts such as Suillus spp. or Rhizopogon spp. Although compatible fungi are usually not naturally present when the host tree genus is not native in the planted area, as in the case of Southern Chile, adventitious communities of ectomycorrhizal fungal partners with unknown origin are commonly observed along the extensive range of Chilean Pinus radiata plantations. We performed a molecular phylogenetic analysis focused on two taxa of Lactarius sect. Deliciosi and Rhizopogon, two very common but insufficiently studied ectomycorrhizal fungi in plantations of P. radiata in central Chile, in order to clarify both identity and origin of adventitious fungal strains. Based on ITS sequences from different specimens covering a larger distribution area, we identified the examined taxa as Lactarius quieticolor and Rhizopogon roseolus. This is the first record of L. quieticolor for South America and there is some evidence that the geographic origin of the examined strains of both species is in the Eurasian region rather than in North America where their host tree P. radiata is native, which raises the discussion how mycorrhizal partners of different geographical origins meet in an allochthonous area.
Thermo-physiological properties of polyester–cotton plated fabrics in relation to fibre linear density and yarn type
Authors: Jhanji Y , Gupta D , Kothari V K
Published: September 2015

Thermo-physiological properties of textiles are crucial in determining the heat and moisture transport from skin to environment and in the assessment of overall wearer comfort. Engineering fabrics with desirable thermo-physiological properties suited for specific applications such as active wear, intimate wear is a big challenge for textile manufacturers as gamut of fibre, yarn and fabric parameters are known to influence the thermo-physiological properties. The present study was undertaken with an aim to explore suitable combination of fibre and yarn variables for engineering polyester–cotton plated fabrics with good thermo-physiological properties. Categorical variables i.e. outer layer yarn type and inner layer fibre linear density were found to affect the thermal, moisture vapour and liquid moisture transfer properties of developed test samples. Fabrics knitted with carded yarn and polyester fibre of high linear density showed high thermal resistance and would feel warmer on initial skin contact owing to low thermal absorptivity. However, the air permeability and moisture vapour transmission rate increased with combination of combed cotton yarn in the outer and coarse polyester fibre in the inner layer. Combed yarn fabrics were superior in trans planar wicking compared to carded yarn fabrics which showed higher water absorbency and would be slow drying fabrics.
Comic Relief: The Andy Griffith Show, White Southern Sheriffs, and Regional Rehabilitation
Authors: Bronstein Phoebe
Published: September 2015

This article examines The Andy Griffith Show (CBS, 1960–68) within the context of civil rights news reporting and articulates how the sitcom used humor to reenvision and rehabilitate the South in its safer white image. By 1960, due to civil rights news coverage, racism could be visually conjured by a set of physical attributes—the burly southern sheriff or the redneck. By contrast, the trim, handsome, and pacifistic Andy Taylor (Andy Griffith) as sheriff with his comically inept deputy Barney Fife (Don Knotts) presented a new, more tolerant South. With Andy at its helm, Andy Griffith's comic and gentle South soothed widespread anxiety about a rapidly changing America as it also reimagined a white rural South as a palliative for the white racist South appearing on the news. Because of its incredible success, Andy Griffith provides a sustained example of how race and region became uncontroversial and profitable at the most unlikely time.
Photocurrent Enhancement of Formamidinium Lead Trihalide Mesoscopic Perovskite Solar Cells with Large Size TiO2 Nanoparticles
Authors: Numata Youhei , Sanehira Yoshitaka , Miyasaka Tsutomu
Published: September 2015

TiO2 particle size in mesoscopic perovskite solar cells (PSCs) has a substantial impact on the photovoltaic performance of formamidinium lead trihalide PSCs. Anatase-TiO2 nanoparticles of different particle sizes (5, 30, 60, and 90 nm) exhibited a trend of changes in photocurrent density and fill factor as well as in the quality of perovskite film. Power conversion efficiency over 11% was achieved for a particle size of 60 nm.
The Problem of Personal Enhancement of Upperclassmen the Context of the New Federal State Educational Standard Implementation
Authors: Шевченко  , Shevchenko Natalya
Published: September 2015

The paper concerns the problem of how to ensure personal enhancement of school students in the context of implementation of the new Federal State

Educational Standard in the general schools practice. Discussed are the essence of the “personality” concept and how it evolves in the course of social

and cultural changes. It is emphasized that personal development occurs through activities, communications and self-cognition against the effects of

certain factors. Challenges of transition to the personality-oriented paradigm are outlined. Also shown are the links between personal enhancement

and the educational environment, socialization and sociability. The author highlights the most efficient methods to ensure personal enhancement of

students in the course of the educational process.
Assessing Customer-Perceived Value in Industrial Service Systems
Authors: Rajala Risto , Töytäri Pekka , Hervonen Tuomas
Published: September 2015

The creation and provision of value is an integral part of competitive service business. Yet, customer-perceived value remains imprecisely understood. In addition, previous research does not provide a conceptualization of value that supports its assessment in the industrial service context. To address these limitations, this study explores how customer-perceived value can be defined and operationalized for use in value assessment within industrial service systems. Our review of the literature shows that value is a complex and multifaceted concept. Therefore the present study proposes a new conceptualization of customer-perceived value, focusing on the perceived difference between the benefits and sacrifices experienced by the customer in relation to a service. Then, through an empirical inquiry of industrial organizations that have taken steps to assess the value perceived by their customers, we identify the constituents of value quantification processes. In addition, we analyze the key challenges pertaining to value assessment in industrial service systems. We conclude that these challenges involve understanding what customers perceive as valuable, acquiring the necessary knowledge of customers’ perceptions, and weighing and quantifying the experienced value. Our analysis of these challenges paves the way for improved practices and tools of value assessment in industrial service.
Notes from the Editors, September 2015
Authors: The Editors -
Published: September 2015

buy this issue
 In the U.S. case, imperialism has always been closely tied to a system of racial domination at home. As W.E.B. Du Bois wrote some sixty years ago in "Negroes and the Crisis of Capitalism in the United States" (Monthly Review, April 1953; reprinted in April 2003),
The United States, with its existing social structure, cannot abolish the color line despite its promises. It cannot stop injustice in the courts based on color and race. Above all, it cannot stop the exploitation of black workers by white capital, especially in the newest South. White North America beyond the urge of sound economics is persistently driving black folk toward socialism. It is the United States which is straining every effort to enslave Asia and Africa, and educated and well-to-do black Americans are coming to know this just as well as anybody. They may delay their reaction; they may hold ominous silence. But in the end, if this pressure keeps up, they will join the march to economic emancipation [the struggle against capitalism], because otherwise they cannot themselves be free.
Despite the gains of the civil rights era, the reemergence of what is now called the "New Jim Crow," based on the mass incarceration and repeated police killings of unarmed black men, shows that the old systems of racial control have been "modernized" in the present, maintaining the color line, if in modified fashion: not only in relation to black Americans—though they have a special position emerging out of the whole legacy of slavery…—but also with respect to all other people of color as well.

Click here to purchase a PDF version of this article at the Monthly Review website.
Forecasting exchange rates using multivariate threshold models
Authors: Huber Florian
Published: September 2015

This paper investigates the ability of a broad range of non-linear time series models to forecast the EUR/USD exchange rate. Using a variant of the well-known Dornbusch (Dornbusch, R. 1976. “Expectations and Exchange Rate Dynamics.”
Challenges and results of a school-based intervention to manage excess weight among school children in Tunisia 2012–2014
Authors: Maatoug Jihen , Fredj Sihem Ben , Msakni Zeineb , Dendana Emna , Sahli Jihene , Harrabi Imed , Chouikha Firas , Boughamoura Lamia , Slama Slim , Farpour-Lambert Nathalie , Ghannem Hassen
Published: September 2015

Background:

Obesity is a serious health issue and predisposes individuals to an increased risk of morbidity and mortality. Its prevalence in children has increased worldwide.

Objective:

To demonstrate the feasibility and effectiveness of a school-based management program based on healthy lifestyle promotion for obese and overweight adolescents in Sousse, Tunisia.

Methods:

We conducted a quasi-experimental study among overweight and obese school children enrolled in 7th and 8th grades in Sousse, Tunisia with two groups, intervention and control. The 1-year intervention was based on promoting healthy eating and physical activity through a collective intervention for all recruited children and an individual intervention only for obese children who require intensive managing. Data collection was done before, at the end and at a 4-month follow up of the intervention, both in intervention and control groups.

Results:

The body mass index Z score decreased significantly from pre-intervention to post-intervention (1.89±0.57 to 1.76±0.63, p<0.001) and from post-intervention to the follow-up (1.76±0.63 to 1.55±0.68, p<0.001) in the intervention group. In the control group, it decreased significantly from pre-intervention to post-intervention but not significantly from post-intervention to follow-up assessment. Calorie intake decreased significantly both in intervention and control groups.

Conclusion:

This project began with introducing a new culture of health management in schools on one side and with increasing awareness of the importance of obesity prevention and treatment. The support of authorities for this type of action is very important to guarantee its sustainability.
Influence of Structural Parameters on the Performance of Vortex Valve Variable-Thrust Solid Rocket Motor
Authors: Wei Xianggeng , Li Jiang , He Guoqiang
Published: September 2015

The vortex valve solid variable thrust motor is a new solid motor which can achieve Vehicle system trajectory optimization and motor energy management. Numerical calculation was performed to investigate the influence of vortex chamber diameter, vortex chamber shape, and vortex chamber height of the vortex valve solid variable thrust motor on modulation performance. The test results verified that the calculation results are consistent with laboratory results with a maximum error of 9.5%. The research drew the following major conclusions: the optimal modulation performance was achieved in a cylindrical vortex chamber, increasing the vortex chamber diameter improved the modulation performance of the vortex valve solid variable thrust motor, optimal modulation performance could be achieved when the height of the vortex chamber is half of the vortex chamber outlet diameter, and the hot gas control flow could result in an enhancement of modulation performance. The results can provide the basis for establishing the design method of the vortex valve solid variable thrust motor.
Diagnosis of the Mechanism of Anodic Oxide Film
Growth on Platinum in KOH
Authors: Mao Feixiong , Lu Pin , Macdonald Digby D.
Published: September 2015

Diagnostic criteria for growth of the anodic oxide film on platinum in
KOH are reported. In this work, the analytical analysis of oxide film
growth demonstrated that the electric field in the passive film formed
anodically on platinum in KOH is constant, independent of the applied
voltage and barrier layer thickness. This criterion intrinsically
distinguishes the Point Defect Model (PDM) from the High Field Model
(HFM). Unequivocally, the PDM provides a superior theoretical
framework than does the HFM for interpreting oxide film growth on
platinum. Importantly, we argue that the diagnostic criteria also
apply to metal interstitial conduction, which is the mechanism
proposed in the HFM for formation of the PtO oxide film on platinum,
but with film growth occurring at the film/solution interface and with
a thickness-dependent electric field, rather than being restricted to
oxygen vacancy conductors alone, as originally derived for the
PDM. Thus, the ability of the diagnostic criteria to differentiate
between the HFM and the PDM, in this case, is a direct assessment of
the dependence of the electric field strength on the applied voltage
and barrier layer thickness, with the experimental results coming down
unequivocally on the side of the PDM.
The Kinetics of the Reaction C2H5
• + HI → C2H6 + I• over an Extended Temperature Range (213–623 K): Experiment and Modeling
Authors: Leplat Nicholas , Federič Jozef , Šulková Katarína , Sudolská Mária , Louis Florent , Černušák Ivan , Rossi Michel Jean
Published: September 2015

The present study reports temperature dependent rate constants k
1
for the title reaction across the temperature range 213 to
293 K obtained in a Knudsen flow reactor equipped with an
external free radical source based on the reaction
C2H5I + H• → C2H5
• + HI
and single VUV-photon ionization mass spectrometry using
Lyman-α radiation of 10.2 eV. Combined with
previously obtained high-temperature data of k
1 in the range
298–623 K using the identical experimental equipment and
based on the kinetics of C2H5
• disappearance
with increasing HI concentration we arrive at the following
temperature dependence best described by a three-parameter fit to the
combined data set: k
1 = (1.89 ± 1.19)10−13(T/298)2.92±0.51 exp ((3570 ± 1500)/RT),
R = 8.314 J mol
–1 K
–1 in the range
213–623 K. The present results confirm the general
properties of kinetic data obtained either in static or Knudsen flow
reactors and do nothing to reconcile the significant body of data
obtained in laminar flow reactors using photolytic free radical
generation and suitable free radical precursors. The resulting rate
constant for wall-catalyzed disappearance of ethyl radical across the
full temperature range is discussed.

Highly correlated ab initio quantum chemistry methods and
canonical transition state theory were applied for the reaction energy
profiles and rate constants. Geometry optimizations of reactants,
products, molecular complexes, and transition states are determined at
the CCSD/cc-pVDZ level of theory. Subsequent single-point energy
calculations employed the DK-CCSD(T)/ANO-RCC level. Further
improvement of electronic energies has been achieved by applying
spin-orbit coupling corrections towards full configuration interaction
and hindered rotation analysis of vibrational contributions. The
resulting theoretical rate constants in the temperature range
213–623 K lie in the range
E-11–E-12 cm3 molecule
–1 s
–1, however
experiments and theoretical modelling seem at great odds with each
other.
New Regulators of Clathrin-Mediated Endocytosis Identified in Saccharomyces cerevisiae by Systematic Quantitative Fluorescence Microscopy
Authors: Farrell Kristen B , Grossman Caitlin , Di Pietro Santiago M
Published: September 2015

Despite the importance of clathrin-mediated endocytosis (CME) for cell biology, it is unclear if all components of the machinery have been discovered and many regulatory aspects remain poorly understood. Here, using Saccharomyces cerevisiae and a fluorescence microscopy screening approach we identify previously unknown regulatory factors of the endocytic machinery. We further studied the top scoring protein identified in the screen, Ubx3, a member of the conserved ubiquitin regulatory X (UBX) protein family. In vivo and in vitro approaches demonstrate that Ubx3 is a new coat component. Ubx3-GFP has typical endocytic coat protein dynamics with a patch lifetime of 45 ± 3 sec. Ubx3 contains a W-box that mediates physical interaction with clathrin and Ubx3-GFP patch lifetime depends on clathrin. Deletion of the UBX3 gene caused defects in the uptake of Lucifer Yellow and the methionine transporter Mup1 demonstrating that Ubx3 is needed for efficient endocytosis. Further, the UBX domain is required both for localization and function of Ubx3 at endocytic sites. Mechanistically, Ubx3 regulates dynamics and patch lifetime of the early arriving protein Ede1 but not later arriving coat proteins or actin assembly. Conversely, Ede1 regulates the patch lifetime of Ubx3. Ubx3 likely regulates CME via the AAA-ATPase Cdc48, a ubiquitin-editing complex. Our results uncovered new components of the CME machinery that regulate this fundamental process.
Effect of long-term loading on timber load-bearing elements
Authors: Sogel Kristian
Published: September 2015

The paper presents results of exceptional experimentation, which focuses on the long-term loading of timber beams. The uniqueness of the research is given by real dimensions of samples and by the term of loading over one year. In the frame of investigation four currently often used timber girders had been investigated. The aim was to observe the time dependence of deflections over time. According to deflection curves the approximations for simulating the final deflection at the end of structure’s lifetime had been defined. The obtained creep coefficients were compared with the values listed in the valid standards.
Assessment of bending moment resistance of girders with corrugated web
Authors: Ilanovský Vladimír
Published: September 2015

The topic of the paper is to investigate procedure to determine bending moment resistance of girders with corrugated webs. Concepts provided by Eurocode EN 1993-1-5 and EN 1999-1-1 are different and not very clear for practical design. To clarify determination of elastic critical bending moment, a finite element model of simply supported beam under uniform bending moment has been created. Positive influence of web corrugation on bending stiffness has been expressed through the improved factor c1 used for flat girders. Results of bending moment resistance have been compared to show the difference between the concepts and to provide more appropriate assessment.
Electrospinning 3D Scaffolds for use in Neural Tissue Engineering
Authors: Martin Rachel , Mullins M. E. , Zhao F. , Qian Zichen
Published: September 2015

Polymer nanofiber scaffolds for use in neural tissue engineering have been fabricated via electrospinning of poly-L-lactic acid (PLLA) directly onto a 3D printed support. Previously, the investigators have shown success in promoting the directed growth of neural axons on highly aligned PLLA substrates both in vitro and in vivo. However, one criticism of the earlier in vitro studies is that by spinning fibers on a flat, two-dimensional surface, the growth of the axons is restricted to one plane. Thus the axon-to-fiber attachment may not be the sole mechanism for aligning the growth of the axons along the fibers, and the channels between the fibers and the substrate could contribute to the results. Using 3D-printing, elevated or “bridge” spinning stages were made with supports at varying heights, allowing the fibers to be suspended 2 to 5 mm above the substrate surface in different configurations. This 3D structure promotes better access of in vitro cell cultures on the fibers to the growth media during incubation, reduces substrate effects, allows more degrees of freedom for axonal growth, and more closely simulates the growth environment found in vivo. Using these 3D stages, we have electrospun free-standing, highly-aligned pure PLLA fiber scaffolds. We are exploring spinning coaxial fibers with a PLLA sheath and a second core polymer. These coaxial fiber scaffold structures offer additional opportunities for in situ delivery of growth agents and/or electrical stimulation for improved axonal growth results.
Сравнение образовательных программ по результатам ЕГЭ зачисленных студентов
Authors: Poldin Oleg , Silaev Andrey
Published: September 2015

Для сравнения отдельных программ подготовки по качеству приема использованы распределения суммы баллов ЕГЭ зачисленных студентов. На основе анализа распределений предложены качественные и количественные показатели, характеризующие различия между программами. Эффекты расслоения программ по баллам ЕГЭ проиллюстрированы эмпирическим анализом приемных кампаний 2009 и 2010 г. в некоторых вузах.
Recycling of coal seam gas-associated water using vacuum membrane distillation
Authors: Heidarpour Farideh , Shi Jeffrey , Chae So-Ryong
Published: September 2015

Coal seam gas-associated water (CSGAW), which is a by-product of coal seam gas (CSG) production typically contains significant amounts of salts and has potential environmental issues. In this study, we optimized a bench-scale vacuum membrane distillation (VMD) process with flat-sheet hydrophobic polytetrafluoroethylene (PTFE) membranes for the treatment of synthetic CSGAW (conductivity = 15 mS/cm). To study performance of the VMD process, we explored the effects of feed temperature (Tf = 60, 70, and 80°C), feed flow rate (Vf = 60, 120, and 240 mL/min), and vacuum pressure (Pv = 3, 6, and 9 kPa) on water permeability through the PTFE membrane in the VMD process. Under the optimum conditions (i.e. Tf = 80°C, Vf = 240 mL/min, Pv = 3 kPa), water permeability and rejection efficiency of salts by the VMD process were found to be 5.5 L/m2/h (LMH) and 99.9%, respectively, after 2 h filtration. However, after 8 h operation, the water permeability decreased by 70% compared with the initial flux due to the formation of fouling layer of calcium, chloride, sodium, magnesium, and potassium on the membrane surface.
Would a two-stage N-removal be a suitable technology to implement at full scale the use of anammox for sewage treatment?
Authors: Pérez J. , Isanta E. , Carrera J.
Published: September 2015

Sewage treatment with anammox could be implemented through a two-step reactor system, where the first reactor would be devoted to partial nitritation. A process design was sketched including control loops. The control strategy regulates the flow-rate of the rich ammonium sidestream produced after dewatering the digested sludge, to keep the ammonium concentration at a set point in the partial nitritation reactor by DOsing the SIde Stream (DOSIS). A second control loop manages the ammonium concentration set point based on the measurement of the total nitrogen in the partial nitritation reactor. A mathematical model was developed to assess the amount of sidestream required. Even in the case of a strong diurnal variability, simulations show how the control strategy is correctly performing, demonstrating the potential of the proposed technology.
Effects of methylene blue on postoperative low-back pain and functional outcomes after lumbar open discectomy: a triple-blind, randomized placebo-controlled trial
Authors: Farrokhi Majid Reza , Lotfi Mehrzad , Masoudi Mohammad Sadegh , Gholami Mehrnaz
Published: September 2015

OBJECT

Despite advances in surgical and anesthesiology techniques, many patients continue to experience postoperative pain after lumbar disc operations. This study aims to investigate the effects of methylene blue (MB) on preventing postoperative low-back pain (LBP) with or without radicular pain and improving the quality of life (QOL) in patients undergoing lumbar open discectomy.

METHODS

This is a prospective, randomized, triple-blind, placebo-controlled clinical trial, which was conducted at Shiraz University of Medical Sciences between July 2011 to January 2012. Of a total of 130 patients, 115 were eligible for participation; 56 received 1 ml of MB solution at a concentration of 0.5% (MB group) and 59 received an equivalent volume of normal saline (control group). Primary outcomes were the control of LBP with or without radicular pain, which was evaluated preoperatively and at 24 hours and 3 months after surgery with the use of a visual analog scale (VAS), and the improvement of QOL, which was assessed preoperatively and 3 months postoperatively by means of the Persian translation of the Oswestry Disability Index questionnaire.

RESULTS

The mean VAS scores for LBP were significantly lower in the MB group compared with the control group at 24 hours (1.25 ± 0.97 vs 2.80 ± 0.69, p < 0.001) and 3 months (1.02 ± 1.29 vs 2.07 ± 1.10, p = 0.019) after treatment. The mean radicular pain scores decreased significantly in the 2 groups at 24 hours after surgery, but the mean radicular pain score was significantly lower in the MB-treated patients than the control group. However, the difference between radicular pain scores in the MB group (1 ± 1.1) and the control group (1.2 ± 1) was not statistically significant (p = 0.64). The reduction in LBP was greater in the MB group than the control group (8.11 ± 1.74 vs 6.07 ± 1.52, p = 0.023, CI 95% −1.37 to −0.10). The functional QOL improved significantly 3 months after the operation in both groups (p < 0.001). Moderate disability occurred more frequently in the control group than in the MB group (14.5% vs 7.7%, p = 0.004). No toxicity, adverse effects, or complications were found in the group of patients treated with MB injection.

CONCLUSIONS

A single dose of MB (1 ml 0.5%) for coating the dura and surrounding tissues (facet and muscle) shows promising results in terms of safety, reduction of postoperative pain, and functional outcome compared with placebo.
Postoperative survival and functional outcomes for patients with metastatic gynecological cancer to the spine: case series and review of the literature
Authors: Liu Ann , Sankey Eric W. , Goodwin C. Rory , Kosztowski Thomas A. , Elder Benjamin D. , Bydon Ali , Witham Timothy F. , Wolinsky Jean-Paul , Gokaslan Ziya L. , Sciubba Daniel M.
Published: September 2015

OBJECT

Spinal metastases from gynecological cancers are rare, with few cases reported in the literature. In this study, the authors examine a series of patients with spinal metastases from gynecological cancer and review the literature.

METHODS

The cases of 6 consecutive patients who underwent spine surgery for metastatic gynecological cancer between 2007 and 2012 at a single institution were retrospectively reviewed. The recorded demographic, operative, and postoperative factors were reviewed, and the functional outcomes were determined by change in Karnofsky Performance Scale and the American Spine Injury Association (ASIA) score during follow-up. A systematic review of the literature was also performed to evaluate outcomes for patients with similar gynecological metastases to the spine.

RESULTS

In this series, details regarding metastatic gynecological cancers to the spine are as follows: 2 patients with cervical cancer (both presented at age 46 years, mean postoperative survival of 32 months), 2 patients with endometrial cancer (mean age of 40 years, mean postoperative survival of 26 months), and 2 patients with leiomyosarcoma (mean age of 44 years, mean postoperative survival of 20 months). All patients presented with pain, and no complications were noted following surgery. All patients with known follow-up had stable or improved neurological outcomes, performance status, and improved pain, without local recurrence of tumor. Overall median survival after diagnosis of metastatic spine lesions for all cases in the literature as well as those treated by the authors was 15 months. When categorized by type, median survival of patients with cervical cancer (n = 2), endometrial cancer (n = 26), and leiomyosarcoma (n = 16) was 32, 10, and 22.5 months, respectively.

CONCLUSIONS

Gynecological cancers metastasizing to the spine are rare. In this series, overall survival following diagnosis of spinal metastasis and surgery was 27 months, with cervical cancer, endometrial cancer, and leiomyosarcoma survival being 32, 26, and 20 months, respectively. Combined with literature cases, survival differs depending on primary histology, with decreasing survival from cervical cancer (32 months) to leiomyosarcoma (22.5 months) to endometrial cancer (10 months). Integrating such information with other patient factors may more accurately guide decision making regarding management of such spinal lesions.
Pratiques addictives en milieu de travail : impasses du concept et nouvelles perspectives
Authors: Lutz Gladys
Published: September 2015

La problématique formulée sous les termes de « pratiques addictives en milieu de travail » enferme l’analyse du côté de la responsabilité individuelle et de la psychopathologie. Aux côtés des sciences médicales et du droit, nous mobilisons les approches cliniques du travail afin d’ouvrir la recherche et l’intervention à l’analyse du travail réel, à la multiplicité des usages et à leurs effets ambivalents pour la santé et pour le travail. Historiquement, le champ « pratiques addictives (ou addictions) en milieu professionnel » a contribué à lever le déni autour des consommations d’alcool et de drogues et à améliorer la prise en charge des usagers problématiques. Aujourd’hui, l’enjeu est de rendre visible le sens des usages pour le travail ; toutes les situations de tensions, d’usure, physique et psychique, soigneusement masquées sous l’effet de ces adjuvants chimiques de l’action (licites et illicites) de plus en plus repérés mais trop rarement questionnés dans leurs liens aux activités professionnelles.
L’appropriation du paradigme addictologique à la SNCF : entre réceptions négociées et usages détournés
Authors: Lemaître Félix
Published: September 2015

Nous nous intéressons dans cet article aux dynamiques d’appropriation professionnelles et individuelles du paradigme addictologique (discours préventif, méthodologie d’action, théories explicatives). Il apparaît que le discours addictologique participe à une individualisation des enjeux. Un nouveau stigmate est produit : la vulnérabilité. Les liens entre usages et travail sont occultés. La prévention est interprétée comme une campagne de rappel à l’ordre moral grâce à des outils scientifiques. Le discours des préventeurs se confronte aux identités professionnelles et aux stratégies de conservation de la face... L’addictologie est intégrée à une science indigène de la sélection où le corps est évalué et l’esprit catégorisé. Mais, en alertant les professionnels, elle participe aussi à l’émergence de résistances aux logiques disciplinaires.
La marche à l’Étoile de Franz Rosenzweig
Authors: Guibal Francis
Published: September 2015

On tente ici de retracer le chemin, d’existence et de pensée, qui devait amener Franz Rosenzweig au chef-d’œuvre qu’est L’Étoile de la Rédemption. Un premier temps est sous le signe d’un « retour » au judaïsme, où distance est prise à l’égard des « tentations » hégélienne et chrétienne. Vient alors le débat décisif de 1916 avec Franz Rosenstock, où l’amitié rend possible la probité intellectuelle et spirituelle d’un parler-vrai entre un envoyé soucieux d’histoire et un témoin de l’Éternel. Dans une époque divisée entre des nations se disputant la maîtrise du monde et le retrait d’un peuple élu voué à un jugement eschatologique, est-il possible de penser une articulation faisant droit tout ensemble aux existences singulières, à leurs traditions respectives et à leur confrontation signifiante ? Là est le défi que devait tenter de relever L’Étoile de la Rédemption.
The Promise for African American Male Students in Teacher Education at Marygrove College
Authors: Okezie Chukwunyere E. , Alhamisi Judy , Glimps Blanche Jackson
Published: September 2015

The recruitment of African American males into the teaching profession in the United States of America is an increasing challenge at national, state, and local levels. Gender and racial disparities between teachers in this country and the students they teach are present in classrooms. This chapter examines the Marygrove College's Griot program as an initiative established to address the underrepresentation of African American males in teaching. The philosophy and heritage from which the Griot Program was developed, along with key events and decisions throughout its life span are discussed. Model African American initiatives in K-12 and higher education that can help shape Griot's future as it tries to increase recruitment, retention, and graduation of African American men to assume positions in elementary, secondary, and post-secondary education also are presented.
The Need for Traffic Based Virtualisation Management for Sustainable Clouds
Authors: Voderhobli Kiran
Published: September 2015

The subscription based model of cloud computing has allowed for users to migrate their processes to off-site network facilities. One of the motivations for deployment of cloud based services is to promote sustainability by reducing green-house emissions at a local level. Although some might argue that this model saves a lot of power at local network facilities, the problem of energy crisis caused by ICT is never-ending. Today, data-centres are bee-hives of exascale computing and high network dependant processing. Work-load on the cloud directly contributes to energy consumption to an extent that currently IT clouds are some of the worst contributors to CO2 emissions. This paper discusses why traffic-management on the cloud is vital to make it more power efficient and how it can be achieved by gathering live network statistics. The discussion fits with the context of “emerging clouds” as thought needs to be given on how to apply energy efficient schemes at various points including at the communication level.
Comparison of Micromechanical Parameters of Different Dental Implants Using Nanoindentation
Authors: Jíra Aleš , Králík Vlastimil , Denk František , Kopecký Lubomír
Published: September 2015

The aim of this work is the description of microstructure and comparison of micromechanical properties of cylindrical shaped intraosseous parts of dental implants with plasma modified surface and with threaded modification. Differences in elastic parameters (such as reduced modulus (Er) and hardness (H)) of investigated implants within the supporting part of the shaft and surface layer in two different directions (proximal and lateral) are compared using experimental method of nanoindentation. Machined implants of titanium alloys Ti6Al4V with plasma modified surface of sprayed titanium with hydroxyapatit (HA) Ca10(PO4)6(OH)2 from different batches of product were available for measurements. SEM element analysis revealed a heterogeneous structure and various concentrations of the essential chemical elements (C, O, P, Ca) on the surface of implants. Results of elastic moduli and hardness was monitored in different locations. On a large statistical set of measurements was indicated that average reduced modulus of implant shafts of titanium alloy is approximately 126 GPa. Differences of Er in case of peripheral hydroxyapatite layer are in range of ~145 GPa – ~163 GPa according to the exact composition of surface modification in the individual batches of the product. The difference of measured values on individual samples in a proximal/lateral direction is approximately 10%.
Surface Layer Micro-Hardness of Modified LDPE by Radiation Cross-Linking after Temperature Load
Authors: Mizera Ales , Manas Miroslav , Manas David , Ovsik Martin , Kaszonyiová Martina , Stanek Michal , Navratil Jan , Bednarik Martin
Published: September 2015

The presented article deals with the research of surface layer ́s micro-mechanical properties of modified LDPE by radiation cross-linking after temperature load. These micro-mechanical properties were measured by the DSI (Depth Sensing Indentation) method on samples which were non-irradiated and irradiated by different doses of the β – radiation and then were temperature loaded. The purpose of the article is to consider to what extent the irradiation process influences the resulting micro-mechanical properties measured by the DSI method. The LDPE tested showed significant changes of indentation hardness and modulus after temperature load.