bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimal Online Selection of an Alternating Subsequence: A Central Limit Theorem
Authors: Arlotto Alessandro , Steele J. Michael
Published: May 2014

We analyze the optimal policy for the sequential selection of an alternating subsequence from a sequence ofnindependent observations from a continuous distributionF, and we prove a central limit theorem for the number of selections made by that policy. The proof exploits the backward recursion of dynamic programming and assembles a detailed understanding of the associated value functions and selection rules.
Convergence and Monotonicity for a Model of Spontaneous Infection and Transmission
Authors: Foxall Eric
Published: May 2014

A version of the contact process (effectively an SIS model) on a finite set of sites is considered in which there is the possibility of spontaneous infection. A companion process is also considered in which spontaneous infection does not occur from the disease-free state. Monotonicity with respect to parameters and initial data is established, and conditions for irreducibility and exponential convergence of the processes are given. For the spontaneous process, a set of approximating equations is derived, and its properties investigated.
Study of Side-chain Effects on the Properties of Anion-exchange Membrane with In Situ Photoswitch
Authors: Li Cunpu , Zhang Shiman , Wang Shubo , Xie Xiaofeng , Deng Changsheng , Ramani Vijay K
Published: May 2014

A crosslinked anion-exchange membrane (AEM) with an in situ photoswitch was synthesized. The side-chain effects on the properties of the AEM were studied using the same membrane sample in different status. The variances between the different samples were eliminated. The hydroxide conductivity of AEM could be increased by reducing the distance between the cations.
Improvement in the Caking Property of Lignite by Hydromodification in a CO–Subcritical Water System
Authors: Dong Dongliu , Zhang Yongfa , Zhao Yuqiong , Wang Qi
Published: May 2014

The modification of noncaking lignite to coking coal was carried out using a CO–subcritical water reaction system, and the surface structure of the modified coal was characterized by X-ray photoelectron spectroscopy. The results show that the caking index (G) of the modified coals increases from 24 to 92 during the progress of catalytic hydromodification. Some oxygen-containing functional groups were removed, decreasing the concentration of C–O, C=O, and COO−.
Acenaphtho[1,2-j]fluoranthene-4,5-dicarboxyimides: A New Monoimide Showing Self-aggregation in Chloroform
Authors: Ozoe Hiroaki , Kitamura Chitoshi , Kurata Hiroyuki , Nishida Jun-ich , Kawase Takeshi
Published: May 2014

The title imides possessing a planar acenaphthofluoranthene moiety were prepared by the Diels–Alder reaction of diacenaphtho[1,2-b:1′,2′-d]thiophene and maleic anhydride and subsequent treatment with amines. The reaction with maleimide afforded the corresponding 1:2 adduct displaying intense blue fluorescence in solution. Although the imides crystallize yellow needles, their amorphous solids are red. Concentration-dependent 1H NMR spectra of a N-octyl derivative reveal self-aggregation behavior in CDCl3.
Efficient 4f–5d Emission Processes of Ce3+ Complexes with Benzimidazole-based Tetradentate Ligands
Authors: Harada Takashi , Hasegawa Ryo , Nishiyama Katsura
Published: May 2014

A Ce3+ complex with tetradentate ligands based on benzimidazole moieties was synthesized. The photochemical properties of the Ce3+ complex were studied via absorption and emission spectra and emission quantum yield measurements. The effective values of the molar absorption coefficient and the emission quantum yield were estimated to be 890 dm3 mol−1 cm−1 and 0.58, respectively; these values are relatively large compared to those of common rare-earth metal complexes that exhibit 4f–4f emissions.
Facile Synthesis of Copper-doped Mesoporous Silica Pillared Clay (Cu-MSPC) as a High-performance Catalyst for Hydroxylation of Benzene to Phenol
Authors: Yue Liwen , Li Baoshan , Ren Zhiming , Wu Naijin , Li Xuan
Published: May 2014

A series of copper-doped mesoporous silica pillared clay (Cu-MSPC) with high catalytic performance on the hydroxylation of benzene to phenol have been synthesized with a facile process. The high conversion (31.1%) and selectivity (96%) toward phenol are achieved with only 4.16% copper loading. The characterization results show that the copper of these materials is doped in the intergallery silica pillar, leading to the high catalytic performance at low copper loadings. Meanwhile, the formation of Cu-MSPC structure is proposed.
Critical Historiography in the Entertainment Age
Authors: Pihlainen Kalle
Published: May 2014

no abstract
Living Memory and Historical Practice: A Personal Tale
Authors: Niethammer Lutz
Published: May 2014

no abstract
Polymeris Voglis : Historein’s Conference: Claiming History. Aspects of Contemporary Historical Culture / Katerina Tzamali : Roumanie et Bulgarie depuis les années '30: Une comparaison
Authors: Historein Historein
Published: May 2014

no abstract
Cannibalism and Knowledge
Authors: Zemon Davis Natalie
Published: May 2014

no abstract
Beyond Anthropocentrism in Historical Studies
Authors: Domanska Ewa
Published: May 2014

no abstract
Selfhood as Otherness: Constructing English Identity in the Elisabethan Age
Authors: Ginzburg Carlo
Published: May 2014

no abstract
The Transformation of Historical Writing from Syntagmatic to Paradigmatic Syntax
Authors: Liakos Antonis
Published: May 2014

no abstract
Byzantine Heterodoxy and the Search for Identities: Some Thoughts on Byzantine Iconoclasm
Authors: Angelidi Christine
Published: May 2014

no abstract
Pratiques de représentation et constructions d'identité: juifs et chrétiens au XIIe siècle
Authors: Benveniste Henriette
Published: May 2014

no abstract
Historiographical Estrangement as Critique: The Divided History of Demokratia
Authors: Lianeri Alexandra
Published: May 2014

no abstract
Shifting Boundaries: Language, Community and the "non-Greek speaking Greeks"
Authors: Exertzoglou Haris
Published: May 2014

no abstracts
What is Historical Critique About?
Authors: Liakos Antonis
Published: May 2014

no abstract
Millennien und andere Jubeljahre: Warum feiern wir Geschichte?
Authors: Mitterauer Michael
Published: May 2014

no abstract
INTERVENTIONS
Authors: Djerbal Daho , Athanasiou Athena , Tzelepis Elena
Published: May 2014

no abstract
Kulturgeschichte as a Political Tool: The Finnish Case
Authors: Jalava Marja
Published: May 2014

no abstract
Long Time Coming, Long time Gone: the Past, Present and Future of Social History
Authors: Gallant Thomas
Published: May 2014

This article traces the past, present and future of social history since the field’s emergence in the mid-1960s until the present. It examines the origin and developmental trajectory of the field, analyzing the various challenges it has faced and how it has responded to them. It ends by suggesting one possiblway forward for the field in the 21st century.
1968, 1989, 2011: reconsidering social movements, 'moments of change' and theoretical framing over time
Authors: Kornetis Kostis
Published: May 2014

This article focuses on three separate "moments of change" - 1968, 1989 and 2011 – in order to trace the changes in the way in which social movements were theoretically framed on a research level ever since the 1960s. Rather than focusing on the real or imaginary connections that activists often create with the contestatory past – or the rejection thereof – it demonstrates the ways in which those moments were theorised and the genealogies that were forged by specialists, who more often than not were implicated in the events themselves. In this respect, it argues that 1968 was the starting date that defined to a greater or lesser extent how we still view and experience collective mobilisations.
'Talkin' about a revolution, it sounds like a whisper': theories and debates on social revolutions
Authors: Voglis Polymeris
Published: May 2014

The article examines and discusses the literature on social revolutions since the 1960s
Review of Joakim Radkau's Wood: A History
Authors: Seirinidou Vaso
Published: May 2014

Review of Joachim Radkau’s Wood gets us back to basics, to the fundamental materials of human existence and the fundamental concerns of human societies. The book is about the interaction between wood and humans throughout history. It is a “tribute” to a material that although it has marked human culture from the Stone Age to the early stages of the industrialization, it has barely been transformed into a subject of historical narrative. However, the importance of Wood lies not mainly in the historical rehabilitation of a neglected material, but rather in the historisation of the actual global concern about the ways societies deal with limited resources
Postcolonial criticism encounters late Ottoman studies
Authors: Kechriotis Vangelis
Published: May 2014

In Ottoman studies, it is only in the last decade that colonialism has been considered a useful analytical category. This may be partly due to the fact that, in the 1970s and 80s, especially in approaches which drew on the dependency theory and the integration of the Ottoman Empire into the world economy, the latter was studied as one of those regions which was never effectively colonised.  However, recently postcolonial studies have attracted the interest of nineteenth-century historians who have reversed the argument and tend to include the Ottoman Empire not among the states that were subject to colonisation but among the colonisers. However, the focus remains on power relations among Muslims. This article offers a critical overview of this literature. It also suggests possible ways for a similar analytical category to be used for Muslim-Christian relations as well.
Review of Angeliki Spiropoulou's Virginia Woolf, Modernity and History: Constellations with Walter Benjamin
Authors: Funke Jana
Published: May 2014

Review of Angeliki Spiropoulou's Virginia Woolf, Modernity and History: Constellations with Walter Benjamin
The Practical Past
Authors: White Hayden
Published: May 2014

no abstract
Review of Efi Kanner's Έμφυλες κοινωνικές διεκδικήσεις από την Οθωμανική Αυτοκρατορία στην Ελλάδα και στην Τουρκία. Ο κόσμος μιας ελληνίδας χριστιανής δασκάλας [Gendered social demands from the Ottoman Empire to Greece and Turkey]
Authors: Vassiliadou Dimitra
Published: May 2014

Review of Efi Kanner, Έμφυλες κοινωνικές διεκδικήσεις από την Οθωμανική Αυτοκρατορία στην Ελλάδα και στην Τουρκία. Ο κόσμος μιας ελληνίδας χριστιανής δασκάλας [Gendered social demands from the Ottoman Empire to Greece and Turkey: The world of a Greek Christian Female teacher], Athens: Papazisis, 2012. pp. 390
Review of N. Diamantouros, Th. Dragonas and F. Birtek (eds), Ελλάδα και Τουρκία: Εκσυγχρονιστικές γεωγραφίες και χωρικές αντιλήψεις του έθνους [Spatial conceptions of the nation: modernising geographies in Greece and Turkey]
Authors: Kanner Efi
Published: May 2014

Review of Nikiforos Diamantouros, Thalia Dragonas, Faruk Birtek (eds), Ελλάδα και Τουρκία: Εκσυγχρονιστικές γεωγραφίες και χωρικές αντιλήψεις του έθνους [Spatial conceptions of the nation: modernising geographies in Greece and Turkey], Athens: Alexandria, 2012, 446 pp.
Review of Petros Pizanias (ed), The Greek Revolution of 1821: A European Event
Authors: Amorati Vasiliki
Published: May 2014

The text is a book review of Petros Pizanias' edited volume The Greek Revolution of 1821: A European Event, Istanbul: The Isis Press, 2011
Metapolitefsi: From the Transition to Democracy to the Economic Crisis, Athens, 14–16 December 2012
Authors: Giannakopoulos Georgios
Published: May 2014

The conference on “Metapolitefsi: From the Transition to Democracy to the Economic Crisis”, organised by Historein in collaboration with the Free University of Berlin and held in Athens on 14–16 December 2012, sought to offer a first systematic account of the historical period from the fall of the Greek military dictatorship (1974) to the recent economic crisis. This postauthoritarian period in Greek politics and society is frequently referred to as the metapolitefsi.
1. The Balkans at the Turn of the Nineteenth to the Twentieth Centuries
Authors: Committee Editorial
Published: May 2014

Nikos Sigalas, review of The "lost homelands" beyond nostalgia: a sociocultural-political history of Ottoman Greeks, mid-19th–early 20th centuries, by Haris Exertzoglou.

Elias G. Skoulidas, review of "Blessed are those who possess the land": Land-conquering plans for the "disappropriation" of consciences in Macedonia, 1880-1909, by Spyros Karavas.

Roumen Daskalov, review of The Balkans: modernisation, identities, ideas; in honour of Prof. Nadia Danova (collective volume).

Loring M. Danforth, review of Battlefields of Memory: The Macedonian Conflict and Greek Historical Culture, by Erik Sjöberg.

Sada Payır, review of Les Grecs d'Instabul au XIXe siècle: Histoire socioculturelle de la communauté de Pera, by Méropi Anastassiadou.

Dimitris Stamatopoulos, review of Society and Politics in Southeastern Europe during the 19th Century, by Tassos Anastasiadis and Nathalie Clayer (eds).

 
2. The Second World War and Its Aftermath
Authors: Committee Editorial
Published: May 2014

Giorgos Antoniou, review of A war without end: the 1940s in political discourse, 1950-1967, by Eleni Paschaloudi.

Kateřina Králová and Konstantinos Tsivos, review of Children of the Greek Civil War: Refugees and the Politics of Memory, by Loring M. Danforth and Riki van Boeschoten.

Christina Alexopoulos, review of Staying temporarily: Greek political refugees in the People's Republic of Bulgaria, 1948-1982, by Katerina Tsekou.

Eugenia Bournova, review of Famine and death in occupied Greece, 1941-1944, by Violetta Hionidou.

Iordanis Psimmenos, review of Construction workers: The people who built Athens, 1950-1967, by Dimitra Lambropoulou.
Reflections on the Anti-war Movement, Then and Now
Authors: Young Marilyn B.
Published: May 2014

no abstract
Review of Promitzer et al. (eds), Health, Hygiene and Eugenics in Southeastern Europe to 1945
Authors: Kritsotaki Despo
Published: May 2014

Review of: Christian Promitzer, Sevasti Trubeta and Marius Turda (eds), Health, Hygiene and Eugenics in Southeastern Europe to 1945, Budapest: Central European UP, 2011. 440 pp.
British Education and the Defamation of the Sixties
Authors: Syriatou Athena
Published: May 2014

no abstract
Thinking About History in the European Sixteenth Century: La Popelinière and his Quest for "Perfect History"
Authors: Gaganakis Kostas
Published: May 2014

no abstract
Towards a New Epistemology: The "Affective Turn"
Authors: Athanasiou Athena , Hantzaroula Pothiti , Yannakopoulos Kostas
Published: May 2014

no abstract
Fear and History
Authors: Stearns Peter N.
Published: May 2014

no abstract
Deep Images in Nineteenth- Century Nationalist Narrative
Authors: Banti Alberto Mario
Published: May 2014

no abstract
Original Knowledge and True Enlightenment: Ranke's Kritik in Context
Authors: Braw J. D.
Published: May 2014

no abstract
Relationships of Affection. Relationships of Power: Death and Family Grieving in the Islands of the Aegean, 17th–18th Centuries
Authors: Zei Eleftheria
Published: May 2014

no abstract
Stairway to Heaven: Calvinist Grief and Redemption in the French Wars of Religion
Authors: Gaganakis Costas
Published: May 2014

no abstract
Connecting Emotions. Contributions from Cultural History
Authors: Passerini Luisa
Published: May 2014

no abstract
The Future of Utopia in History
Authors: White Hayden
Published: May 2014

no abstract
A Contribution to the Archaeology of Modern Utopian Thought: History and Utopia in Plethon’s Oeuvre
Authors: Smarnakis Yannis
Published: May 2014

no abstract
Le procès de Jean dit Italos révisé
Authors: Gounaridis Pâris
Published: May 2014

no abstract
Gender History and the Transformation of the Poetics of Historical Knowledge
Authors: Hantzaroula Pothiti
Published: May 2014

no abstract
On the Language of Conversion: Visigothic Spain Revisited
Authors: Benveniste Henriette-Rika
Published: May 2014

no abstract
Religious Zeal and Political Expediency on the Eve of the French Wars of Religion
Authors: Gaganakis Costas
Published: May 2014

no abstract
Imagining the 'Global'? National Europe, Imperial Ideology and the Legacies of Rome in Nineteenth-Century Britain
Authors: Miliori Margarita
Published: May 2014

no abstract
Reflections on the Politics of Mourning: Feminist Ethics and Politics in the Age of Empire
Authors: Athanasiou Athena
Published: May 2014

no abstract
Discord or Achievement? Reflections on the Habsburg Empire, 1848–1918
Authors: Raptis Konstantinos
Published: May 2014

no abstract
The Visibility of History – Bridging the Gap between Historiography and the Fine Arts
Authors: Rüsen Jörn
Published: May 2014

no abstract
Nation and Empire Annual Conference of the Association for the Study of Ethnicity and Nationalism (ASEN), 20–21 April 2005
Authors: Kechriotis Vangelis
Published: May 2014

no abstract
The Politics of History and the History of Politics: The Rewriting of the Past During Perestroika (1985-1990)
Authors: Kouki Hara
Published: May 2014

no abstract
Historein's Note
Authors: Historein Historein
Published: May 2014

no abstract
History Writing as the Return of the Repressed
Authors: Liakos Antonis
Published: May 2014

no abstract
Are Good-Looking People More Employable?
Authors: Ruffle Bradley J. , Shtudiner Ze'ev
Published: May 2014

We investigate the role of physical attractiveness in the hiring process. We sent 5,312 curricula vitae (CVs) in pairs to 2,656 advertised job openings. In each pair, one CV was without a picture, whereas the second, otherwise almost identical CV contained a picture of either an attractive male or female or a plain-looking male or female. Employer callbacks to attractive men are significantly higher than to men with no picture and to plain-looking men, nearly doubling the latter group. Strikingly, attractive women do not enjoy the same beauty premium. In fact, women with no picture have a significantly higher rate of callback than attractive or plain-looking women. We explore a number of explanations for this discrimination against attractive women and provide evidence that female jealousy and envy are likely reasons.

This paper was accepted by Uri Gneezy, behavioral economics.
Clinical trial networks in orthopaedic surgery
Authors: Rangan A. , Jefferson L. , Baker P. , Cook L.
Published: May 2014

The aim of this study was to review the role of clinical trial networks in orthopaedic surgery. A total of two electronic databases (MEDLINE and EMBASE) were searched from inception to September 2013 with no language restrictions. Articles related to randomised controlled trials (RCTs), research networks and orthopaedic research, were identified and reviewed. The usefulness of trainee-led research collaborations is reported and our knowledge of current clinical trial infrastructure further supplements the review. Searching yielded 818 titles and abstracts, of which 12 were suitable for this review. Results are summarised and presented narratively under the following headings: 1) identifying clinically relevant research questions; 2) education and training; 3) conduct of multicentre RCTs and 4) dissemination and adoption of trial results. This review confirms growing international awareness of the important role research networks play in supporting trials in orthopaedic surgery. Multidisciplinary collaboration and adequate investment in trial infrastructure are crucial for successful delivery of RCTs.

Cite this article: Bone Joint Res 2014;3:169–74.
No apologies for cross-posting: European trans-media space and the digital circuitries of racism
Authors: Titley Gavan
Published: May 2014

This article proposes points of departure for researching the circulation and assemblage of racist ideas and racializing discourses in the trans-media space of interactive, hybrid digital media. It contends that racist mobilizations are increasingly invested in organized and opportunistic communicative actions that depend on the integration of interactive digital media to a wider media ecology and European political environment. Further, if social media can be understood as a constant ‘invitation to discourse’, then they also provide an invitation to discourse on the nature and scope of racism in a putatively ‘post-racial’ era. In contending that the affordances and dynamics of social media networks are politically generative in relation to the politics of racism, it proposes working with malleable resources in the sociology of racism to develop approaches that are not limited to the established focus on extremist sites, but that can account both for the circuitries of digital media exchange and the particularities of regional racial formations.
The migration industry of connectivity services: A critical discourse approach to the Spanish case in a European perspective
Authors: Gordano Peile Cecilia
Published: May 2014

Contemporary societies are embedded in three interrelated processes: increasing mobility, digital connectivity and the consolidation of a service-based economy. In this context, a migration industry of connectivity (MIC) emerges as a set of private ventures offering services to migrants to enable them to keep in touch with loved ones at a distance. This article has a double purpose: first, it argues that the MIC is a powerful theoretical concept to analyse contemporary migratory processes. Second, it illustrates this empirically through ten company spokespersons’ accounts and a critical discourse analysis of eighteen corporate online texts of mobile telephony and money transfer services that target immigrants in Europe. Conclusions suggest that these discourses offer migrants alternative subjectivities across the lines of consumption, citizenship and ethnic identity, often neglected within the broader field of public discourses, such as the mass media and parliamentary debate. This situates the MIC as an emerging powerful actor in a discursive arena traditionally dominated by governmental bodies.
Community music therapy in schools: Realigning with the needs of contemporary students, staff and systems
Authors: McFerran Katrina Skewes , Rickson Daphne
Published: May 2014

The nature of schooling in first world western countries has changed significantly in the past decade. The philosophy of inclusion has been embraced internationally and has led to school communities comprising of staff and students who have considerably diverse backgrounds and abilities. Pedagogical emphases are therefore slowly shifting from teaching universalized curricula to developing universal designs that can take account of the individual needs of students. While the tradition of withdrawing students from class in order to participate in individualized therapy does not fit well in these contexts, music therapists have a lot to offer contemporary schools. The music therapy literature suggests innovative practices are occurring in mainstream and special school contexts, yet they continue to be framed by traditional theories. In contrast community music therapy (CoMT) provides a congruent theoretical framework for current practice, with an emphasis on equality, resource-orientation, collaboration and acknowledgment of the systems that shape music therapists’ work. These theories can be translated into practice principles for music therapists working in schools to assist in the transition away from a sole focus on the pathology of individuals and towards the flourishing of musical cultures within whole school systems. In this article we outline the various forces of change that we perceive to be influencing schools, how they intersect with both traditional and innovative practices of music therapists, and suggest key principles that have been helpful in our own school-based projects in the past decade. Drawing on five key features of CoMT we present a framework for contemporary music therapy practice in schools.
Discovering community music therapy in practice: Case reports from two Ontario hospitals
Authors: Clements-Cortes Amy , Pearson Sarah
Published: May 2014

Music therapy holds a particularly valuable place in providing holistic health care, and medical settings are well suited to a community music therapy (CoMT) model of practice. As medicine continues to shift its focus to become preventative, health-promoting and patient-centred, the presence of live music in hospital environments can contribute to valuable collaborative relationships between members of the community who might not otherwise meet, while impacting and addressing patient wellness as well as patient illness. CoMT is a model music therapists are practicing within to focus on improving quality of life in a variety of domains for patients and families in various healthcare settings. This article explores two distinct community case reports from Ontario, Canada, in which an emerging CoMT practice fostered therapeutic collaborative relationships. Background information is provided on music therapy, performing, interdisciplinary health care and CoMT in context and action.
Managing Revenue across Retail Channels: The Interplay of Service Performance and Direct Marketing
Authors: Lund Donald J. , Marinova Detelina
Published: May 2014

Increased internal pressure to make marketing accountable, combined with market pressure from the proliferation of new service delivery channels, requires retailers to better understand the differential impacts of marketing efforts across channels now more than ever. In this article, the authors (1) develop and test a theoretically grounded framework for the interplay of objective service performance and direct marketing in shaping retail revenue over time through two distinct service delivery channels (on-site and remote) and (2) conceptualize service delivery channel–specific servicescapes as facilitative mechanisms for the effectiveness of objective service performance and direct marketing. The authors test the conceptual framework with multisource data from a major national pizza retailer comprising a field study based on a time series of 223 weeks across five stores of objective marketing and performance data (delivery time) and a cross-sectional survey of the retailer's customers. They find that objective service performance and direct marketing interact by exhibiting a trade-off effect contingent on specific aspects of the servicescape. When both objective service performance and direct marketing levels are high, servicescape quality design perceptions alleviate the trade-off effect in on-site delivery channels, and servicescape time/effort cost perceptions do so in remote delivery channels. The authors conclude with a discussion of implications for research and practice.
Feminist Revolutionary Music Criticism and Wagner Reception
Authors: McManus Laurie
Published: May 2014

Histories of progressive musical politics in mid-nineteenth-century Germany often center on the writings of Richard Wagner and Franz Brendel, relegating contributors such as the feminist and author Louise Otto (1819–95) to the periphery. However, Otto's lifelong engagement with music, including her two librettos, two essay collections on the arts, and numerous articles and feuilletons, demonstrates how one contemporary woman considered the progressive movements in music and in women's rights to be interrelated. A staunch advocate of Wagner, Otto contributed to numerous music journals, as well as her own women's journal, advising her female readers to engage with the music of the New German School. In the context of the middle-class women's movement, she saw music as a space for female advancement through both performance and the portrayals of women onstage. Her writings offer us a glimpse into the complex network of Wagner proponents who also supported women's rights, at the same time providing evidence for what some contemporary conservative critics saw as a concomitant social threat from both Wagnerian musical radicalism and the emancipated woman.
Structural basis for Pan3 binding to Pan2 and its function in mRNA recruitment and deadenylation
Authors: Wolf Jana , Valkov Eugene , Allen Mark D , Meineke Birthe , Gordiyenko Yuliya , McLaughlin Stephen H , Olsen Tayla M , Robinson Carol V , Bycroft Mark , Stewart Murray , Passmore Lori A
Published: May 2014

The conserved eukaryotic Pan2–Pan3 deadenylation complex shortens cytoplasmic mRNA 3′ polyA tails to regulate mRNA stability. Although the exonuclease activity resides in Pan2, efficient deadenylation requires Pan3. The mechanistic role of Pan3 is unclear. Here, we show that Pan3 binds RNA directly both through its pseudokinase/C‐terminal domain and via an N‐terminal zinc finger that binds polyA RNA specifically. In contrast, isolated Pan2 is unable to bind RNA. Pan3 binds to the region of Pan2 that links its N‐terminal WD40 domain to the C‐terminal part that contains the exonuclease, with a 2:1 stoichiometry. The crystal structure of the Pan2 linker region bound to a Pan3 homodimer shows how the unusual structural asymmetry of the Pan3 dimer is used to form an extensive high‐affinity interaction. This binding allows Pan3 to supply Pan2 with substrate polyA RNA, facilitating efficient mRNA deadenylation by the intact Pan2–Pan3 complex.
Phaeochromocytoma and Acromegaly: a unifying diagnosis
Authors: Mumby C , Davis J R E , Trouillas J , Higham C E
Published: May 2014

A 52-year-old lady was referred after a 5 cm left adrenal mass was detected on computed tomography (CT) scanning. She was asymptomatic although was noted to have acromegalic facies. Blood pressure (BP) was normal but plasma normetanephrines were raised to 2.81 mmol/l (<1.09) and urinary normetadrenaline excretion 5.3 μmol/24 h (0–4.3). Adrenal biochemistry screen was otherwise normal. Metaiodobenzylguanidine (MIBG) scan demonstrated uptake in the adrenal lesion. Growth hormone (GH) nadir on oral glucose tolerance test (OGTT) was 2.2 ng/ml with an elevated IGF1 level of 435 ng/ml (72–215), confirming acromegaly biochemically. The remainder of the pituitary screen was normal. A magnetic resonance imaging (MRI) scan of the pituitary revealed an enlarged pituitary gland with a microadenoma/cyst of 2–3 mm in diameter. Alpha blockade was achieved with a titrated dose of phenoxybenzamine before a successful laparoscopic hand-assisted left adrenalectomy. Postoperative biochemical testing revealed a normal plasma normetanephrine level of 0.6 nmol/l (<1.09) and a metanephrine level of 0.35 nmol/l (<0.46 nmol/l). Nadir on OGTT was normal at 0.07 ng/ml with an IGF1 level within the reference range at 111 ng/ml (75–215). Histology demonstrated a well-circumscribed and encapsulated oval mass with microscopic features typical for a phaeochromocytoma. The sections stained strongly positive for GHRH in 20% of cells on immunocytochemistry. Genetic analysis showed no pathogenic mutation. This is a report of the rare condition of a phaeochromocytoma co-secreting GHRH resulting in clinical and biochemical acromegaly. Neuroendocrine tumours can stain positive for GHRH without coexisting acromegaly, but the resolution of patient symptoms and normalisation of serum GH and IGF1 levels following surgery imply that this was functional secretion. Pituitary surgery should be avoided in such cases.

Learning points

Incidental findings on imaging require thorough investigation to determine the presence of serious pathology.

Acromegaly and phaeochromocytoma are rarely coincident in the same patient. If this occurs, co-secretion of GHRH from the phaeochromocytoma or the presence of underlying genetic abnormalities must be considered.

Acromegaly is due to ectopic GHRH-secreting neuroendocrine tumours in <1% of cases, most commonly pancreatic or bronchial lesions.

Co-secretion of GHRH from a phaeochromocytoma is extremely rare.

In such cases, the pituitary gland may appear enlarged but pituitary surgery should be avoided and surgical treatment of the neuroendocrine tumour attempted.
Investigating the deformation and damage scenario under tensile loading of ductile specimens using thermography
Authors: Cabrera F. Mata , Manzanares J. Tejero , Hanafi I. , Arenas A. B. , Garrido I. , Toledano V. , Rubio M. L.
Published: May 2014

Mechanical properties of ductile materials are very sensitive to environmental conditions in particular temperature. The paper shows the results obtained in the simultaneous testing of 5182 H111 Aluminium alloy, S275JR Carbon Steel and F114 Carbon Steel specimens using conventional methods and thermography. The infrared thermography was used to quantify deformation localization zones, also to relate the temperature changes of the specimens, continuously recorded by thermography, with the load extension diagram. It enables to predict reaching the critical stresses which cause the appearance of fractures and to define the criteria for determining the maximum sample temperature alteration in the field of elastic and elastic-plastic strains. Infrared thermography was found to be an efficient tool for investigating the deformation and damage scenario under tensile loading.
Characterization of greywater sources on the base of organic content and microbial quality
Authors: Boros N. , Petrányi A. , Kocsis D. , Bodnár I.
Published: May 2014

The recycling of greywater for non-potable water applications, such as toilet flushing or irrigation, is a potential solution to reduce potable water consumption. To estimate the quality of raw greywater samples, we measured several physical, chemical and biological parameters. We used Hygiene Monitor test kits to determine microbiological presence in the samples. The greywater samples showed a high variability for all the measured parameters. In general, we found that greywater sources had lightly alkaline character with a considerable inorganic and organic content. About half of the analyzed samples can be characterized as highly contaminated water source with organic substance. The average BOD5 and DOC values of greywater samples were 429 ± 410 mg l−1 and 341 ± 348 mg l−1. The samples showed high similarity concerning the total plate counts parameter (range from 5 to 6 log10 cfu ml−1). Among the three greywater sources, the samples from dish sources showed the lowest coliform content (3.9 log10 cfu ml−1) and the bath samples were contaminated with coliforms to the highest degree (4.9 log10 cfu ml−1). The results of E. coli contamination tests proved that all greywater sources can be contaminated with pathogen bacteria, consequently the treatment before reuse of greywater is indispensable.
Investigation of chemical parameters along the Nagy Brook
Authors: Mazsu N. , Szabolcsik A. , Forian S. , Boros N. , Bodnar I.
Published: May 2014

Several small and big water streams cut across Hungary; the protection of these water resources is in our common interest. To perform this protection, it is necessary to carry out extensive condition surveys of these surface waters. Unfortunately, our surface water streams are not properly investigated; it is true especially for the small ones. That is why we started to study the water quality of Nagy Brook, which is loaded by many point sources of pollution. During our work we have done measurements on spot and in laboratory, as well. In this paper we are presenting only those results which were measured on the spots along the Nagy Brook. Our results demonstrate how large the effect of inflowing treated wastewater is on the quality of a seasonal water stream and how the water level affects the studied parameters and what kind of the chemical and ecological water conditions can be developed under these circumstances.
Air-source heat pump LabView-based model development for NZEB applications
Authors: Szász Cs.
Published: May 2014

A net zero-energy building (NZEB) is considered as a resident or commercial building where the energy needs are covered by using locally available renewable energy sources and technologies. Various types of heat pumps are widely used energy conversion systems for NZEB strategies implementation. This paper is focused on the development of a novel LabView-based model for an air-source heat pump system that absorbs heat from outside air and releases it inside the building as domestic hot water supply or room's space heating by using hot water-filled fan-coils. In the first research steps the mathematical background of the considered heat pump system has been developed. Then the LabView-based software implementation of the air-source heat pump and entire heating circuit model is unfolded and presented. The result is a versatile and powerful graphical software toolkit, suitable to simulate the complex heating, ventilation and air-conditioning processes in net-zero energy buildings and to perform energy balance performance evaluations. Beside the elaborated mathematical models, a concrete software implementation example and measurement data is provided in the paper. Last but not least, the proposed original model offers a feasible solution for future developments and research in NZEB applications modeling and simulation purposes.
Financial position of building industry in Hajdú-Bihar County (E Hungary) in the period of 2008–2012: Regional sectoral analysis based on economic performance ratios
Authors: Rózsa A.
Published: May 2014

In this study the financial situation of leading Hungarian construction companies in Hajdú-Bihar County is analysed for the period of the economic crisis. The target group is determined by the amount of share capital and sales, thus it contains the most relevant regional companies. Their main activity is residential and non-residential building construction. The most significant purpose of the research is to analyse the changes of the comparative financial situation of these companies. Moreover, I specify the main characteristics of the regional sector, and determine the competitive advantages of the companies. The research method is based on annual financial reports. In order to evaluate the performance of the examined companies I use financial ratios concerning liquidity, efficiency, and profitability situation. At the end of the study I summarize conclusions and identify the most important consequences regarding the changing financial position of competitors.
Thermodynamic description of Ge-Mn-Si
Authors: Berche Alexandre , Tédenac Jean-Claude , Jund Philippe , Gorsse Stéphane
Published: May 2014

Literature data of the Mn-Si system is analyzed and discordances are pointed out. First principles calculations are performed to clarify the enthalpies of formation of the intermetallic phases. Especially the enthalpies of formation of the various possible structures of the MnSix are discussed. On the basis of these new data, a thermodynamic description of the Gibbs energy of the phases is performed using the Calphad method. The system Ge-Mn is also assessed using the Calphad method for the first time.

The mixing enthalpy in the D88 solid solution is calculated between Mn5Ge3 and Mn5Si3 by DFT calculations.

Finally a thermodynamic description of the ternary system is suggested. Especially the solubility of germanium in MnSix is modeled.
O caso do PAC Embrapa: requisitos de uma gestão orientada para resultados no setor público
Authors: Porpino Gustavo , De Stefani Emerson
Published: May 2014

O artigo analisa os processos de gestão, acompanhamento e controle de resultados adotados pela Embrapa para realizar com efetividade os 10 projetos e 141 metas previstos no Programa de Fortalecimento e Crescimento da Embrapa (PAC Embrapa). A pesquisa qualitativa, baseada em estudo de caso descritivo, aborda a literatura de gestão orientada para resultados (GpR) em junção com a análise do modelo emergente dessa implementação. Ao explicitar e descrever o modelo praticado que se revelou preponderante para o cumprimento das metas e para uma elevada execução orçamentária, o estudo identifica sete requisitos necessários para uma gestão para resultados eficaz em instituições públicas, tais como: meritocracia na formação da equipe gestora, apoio da alta gestão, autonomia e comunicação estratégica. Ao apresentar evidências empíricas dos requisitos para a eficácia da GpR, o estudo oferece subsídios para melhoria da gestão de programas de governo e consequente geração de valor público.
Conhecimento, aprendizagem organizacional e poder na rede: um estudo de caso na Secretaria de Educação e Cultura de Coahuila, México
Authors: Américo Bruno Luiz , Takahashi Adriana Roseli Wünsch
Published: May 2014

O presente estudo parte da lacuna identificada de estudos de aprendizagem organizacional e poder. Para isso, tem como objetivo analisar a relação entre conhecimento, aprendizagem organizacional e poder, que permite controle, a partir da implantação, seguimento e avaliação de um Programa Nacional de Ensino de Inglês pela Coordenação da Secretaria da Educação e Cultura em Coahuila, México. Como referencial, vale-se da literatura de aprendizagem e conhecimento, poder e controle. Especificamente, versa sobre: a força ordenadora dos elementos textualizados na rede. Por meio de um estudo de caso qualitativo verificou-se como se dá o fluxo do conhecimento (acúmulo e utilização) e o exercício de poder, onde mediadores atuam, configurando o processo de aprendizagem individual e organizacional.
Avaliação subjetiva da aceitabilidade das imagens de tomografia computadorizada de feixe cônico para o planejamento de implantes osteointegrados
Authors: SIMÕES Cinthia Coelho , CAMPOS Paulo Sergio Flores
Published: May 2014

Introdução: Para realização de mensurações precisas para implantes osteointegrados, é necessário que as imagens tomográficas apresentem uma qualidade mínima, que permita a visualização clara das estruturas anatômicas. Objetivo: Diante disso, avaliou-se, subjetivamente, a aceitabilidade das imagens de diferentes protocolos de tomografia computadorizada de feixe cônico (TCFC), para o planejamento de implantes osteointegrados. Material e método: Foram obtidas imagens de TCFC de dez hemimandíbulas maceradas no equipamento K9000 3D, sendo modificada apenas a miliamperagem (Grupo I: 2 mA; Grupo II: 8 mA e Grupo III: 15 mA). As aquisições foram feitas com 80 kV, FOV de 5 × 3,7 cm, matriz de 512 × 512 e voxel de 0,076 mm de espessura. Após as aquisições, três avaliadores analisaram as reconstruções ortogonais em três tamanhos de voxel, constituindo-se, assim, nove grupos experimentais. Após a realização das mensurações de altura e espessura óssea, os avaliadores atribuíram escores (sim ou não) para a aceitabilidade das imagens para mensurações. Resultado: Os grupos apresentaram qualidade de imagem aceitável para o planejamento de implantes, com exceção das imagens adquiridas com 2 mA e analisadas com voxel de 0,076 mm e 0,535 mm. Conclusão: O protocolo de 8 mA e voxel de 2,1 mm deve ser, preferencialmente, indicado na identificação do canal mandibular, já que a dose de radiação é menor do que nos protocolos de 15 mA e a qualidade de imagem é superior aos protocolos de 2 mA; além disso, voxel de 2,1 mm apresentou maior aceitabilidade das imagens.
Fracture resistance of endodontically-treated teeth submitted to bleaching treatment with hydrogen peroxide and titanium dioxide nanoparticles photoactivated by LED-laser
Authors: JORDÃO-BASSO Keren Cristina , ANDOLFATTO Carolina , KUGA Milton Carlos , CHÁVEZ-ANDRADE Gisselle Moraima , FARIA-JÚNIOR Norberto Batista de , FARIA Gisele , MADEIRA-NETO Paulo , OLIVEIRA-JUNIOR Osmir Batista de
Published: May 2014

Objective: The aim of this study was evaluate the fracture resistance of endodontically-treated teeth after bleaching treatment using 15% hydrogen peroxide plus titanium dioxide nanoparticles (15HPTiO2) photoactivated by LED-laser, in comparison with protocols using 35% hydrogen peroxide (35HP), 37% carbamide peroxide (37CP) or sodium perborate (SP). Material and method: After endodontic treatment, fifty bovine extracted incisors were divided into five groups (n = 10): G1- without bleaching; G2- 35HP; G3- 37CP; G4- 15HPTiO2 photoactivated by LED-laser and G5- SP. In G2 and G4, the bleaching protocol was applied in 4 sessions, with a 7 day interval between each session. In G3 and G5, the materials were kept in the pulp chamber for 21 days, but replaced every 7 days. After 21 days, the crowns were subjected to compressive load at a cross head speed of 0.5 mm/min, applied at 135° to the long axis of the root using an eletromechanical testing machine, until fracture. The data were submitted to ANOVA and Tukey tests (p = 0.05). Result: The bleaching treatment in endodontically-treated teeth with 15HP plus TiO2 nanoparticles and photoactivated by LED-laser caused reduction of the fracture resistance similarly provided by 35HP, 37CP or SP (p>0.05). All bleaching treatments reduced the fracture resistance compared to unbleached teeth (p<0.05). Conclusion: All bleaching protocols reduced the fracture resistance of endodontically-treated teeth, but there were no differences between each other.
Lesões maxilofaciais: um levantamento de 762 casos da Universidade Federal de Sergipe, Brasil
Authors: SOUTO Maria Luisa Silveira , PIVA Marta Rabello , MARTINS-FILHO Paulo Ricardo Saquete , TAKESHITA Wilton Mitsunari
Published: May 2014

Introdução : A pesquisa epidemiológica de lesões maxilofaciais em determinada região estabelece as necessidades populacionais e orienta os profissionais da saúde na definição de ações preventivas e tratamento adequado. Objetivo: Analisar os laudos histopatológicos de lesões maxilofaciais do período de 1996 a 2011 do Laboratório de Patologia Oral do Departamento de Odontologia da Universidade Federal de Sergipe (UFS), Brasil. Material e método: Estudo retrospectivo das biópsias realizadas de 1996 a 2011, recuperando-se os dados referentes ao gênero e à idade dos pacientes, à localização das lesões e ao diagnóstico histopatológico. As lesões foram agrupadas em: neoplasias benignas, lesões potencialmente malignas, neoplasias malignas, lesões inflamatórias, lesões odontogênicas, lesões ósseas, lesões de glândulas salivares e anomalias de desenvolvimento. Resultado: Foram analisados 762 laudos, havendo maior prevalência das lesões inflamatórias (n=205, 26,9%). O diagnóstico mais comum entre as neoplasias benignas foi a lesão periférica de células gigantes (n=15); entre as lesões potencialmente malignas, foi a displasia epitelial (n=80), e entre as neoplasias malignas, foi o carcinoma de células escamosas (n=29). Dentre as lesões inflamatórias, a lesão mais prevalente foi a hiperplasia fibrosa inflamatória (n=74). O granuloma periapical (n=62) foi a lesão mais comum dentre as lesões odontogênicas. A lesão mais prevalente dentre as lesões ósseas foi o fibroma ossificante central (n=08); entre as lesões de glândulas salivares, foi o fenômeno de retenção de muco (n=64), e entre as anomalias de desenvolvimento, foi a mácula melanocítica (n=04). Conclusão: Os achados deste levantamento salientam a importância de planos de tratamento e medidas educativas que diminuam e previnam a exposição dos pacientes a fatores de risco.