bluuebunny/crossref_metadata_2025 huggingface dataset:
The regulatory repertoire of PLZF and SALL4 in undifferentiated spermatogonia
Authors: Lovelace Dawn L. , Gao Zhen , Mutoji Kazadi , Song Yuntao Charlie , Ruan Jianhua , Hermann Brian P.
Published: April 2016

Spermatogonial stem cells (SSCs) maintain spermatogenesis throughout adulthood through balanced self-renewal and differentiation, yet the regulatory logic of these fate decisions is poorly understood. The transcription factors Sal-like 4 (SALL4) and zinc finger and BTB domain containing 16 (ZBTB16, aka: PLZF) are known to be required for normal SSC function, but their targets are largely unknown. ChIP-seq in THY1+ spermatogonia identified 4176 PLZF-bound and 2696 SALL4-bound genes, including 1149 and 515 which were unique to each factor, respectively, and 1295 which were bound by both factors. PLZF and SALL4 preferentially bound gene promoters and introns, respectively. Motif analyses identified putative PLZF and SALL4 binding sequences, but rarely both at shared sites indicating significant non-autonomous binding in any given cell. Indeed, the majority of PLZF/SALL4 shared sites contained only PLZF motifs. SALL4 also bound gene introns at sites containing motifs for the differentiation factor DMRT1. Moreover, mRNA levels for both unique and shared target genes involved in both SSC self-renewal and differentiation were suppressed following SALL4 or PLZF knockdown. Together, these data reveal the full profile of PLZF and SALL4 regulatory targets in undifferentiated spermatogonia, including SSCs, which will help elucidate mechanisms controlling the earliest cell fate decisions in spermatogenesis.
De novo neurogenesis by targeted expression of Atoh7 to Müller glia cells
Authors: Lust Katharina , Sinn Rebecca , Saturnino Alicia Pérez , Centanin Lázaro , Wittbrodt Joachim
Published: April 2016

Regenerative responses in the vertebrate CNS depend on quiescent radial glia stem cells, which re-enter the cell cycle and eventually differentiate into neurons. The entry into the cell cycle and the differentiation into neurons are events of opposite nature, and therefore efforts to force quiescent radial glia into neurons require different factors. Here we use fish to show that a single neurogenic factor, Atoh7, directs retinal radial glia (Müller glia, MG) into proliferation. The resulting neurogenic clusters differentiate in vivo into various retinal neurons. We use signaling reporters to demonstrate that the atoh7-induced regeneration-like response of MG cells is mimicked by Notch, resembling the behavior of early progenitors during retinogenesis. Activation of Notch signaling in MG cells is sufficient to trigger proliferation and differentiation. Our results uncover a new role for Atoh7 as a universal neurogenic factor, and illustrate how signaling modules are reemployed in diverse contexts to trigger different biological responses.
Καταστατικόν της Χριστιανικής Αρχαιολογικής Εταιρείας
Authors: ΧΡΙΣΤΙΑΝΙΚΗ ΑΡΧΑΙΟΛΟΓΙΚΗ ΕΤΑΙΡΕΙΑ (ΧΑΕ)
Published: April 2016

no abstract
Επιστολή Χαριλάου Τρικούπη
Authors: ΤΡΙΚΟΥΠΗΣ Χαρίλαος
Published: April 2016

no abstract
Επιστολή του Πατριάρχου Κωνσταντινουπόλεως Νεοφύτου Η΄
Authors: ΠΑΤΡΙΑΡΧΗΣ ΚΩΝΣΤΑΝΤΙΝΟΥΠΟΛΕΩΣ ΝΕΟΦΥΤΟΣ Η΄
Published: April 2016

no abstract
Αρχαί της Εταιρείας
Authors: ΧΡΙΣΤΙΑΝΙΚΗ ΑΡΧΑΙΟΛΟΓΙΚΗ ΕΤΑΙΡΕΙΑ (ΧΑΕ)
Published: April 2016

no abstract
Μουσείον Χριστιανικής Αρχαιολογίας και Τέχνης. Μελέται, εργασίαι και περιηγήσεις 1892
Authors: ΛΑΜΠΑΚΗΣ Γεώργιος
Published: April 2016

no abstract
Μουσείον Χριστιανικής Αρχαιολογίας και Τέχνης. Μελέται, εργασίαι και περιηγήσεις 1893
Authors: ΛΑΜΠΑΚΗΣ Γεώργιος
Published: April 2016

no abstract
Εκθέσεις του αντιπροέδρου της Χριστιανικής Αρχαιολογικής Εταιρείας προς το Δ. Συμβούλιον της Χριστιανικής Αρχαιολογικής Εταιρείας και της Αρχαιολογικής Εταιρείας (περί των μωσαϊκών της Μονής Δαφνίου)
Authors: ΤΥΠΑΛΔΟΣ ΚΟΖΑΚΗΣ Γ.
Published: April 2016

no abstract
Εγγραφον προς τον Σεβασμιώτατον Μητροπολίτην Αθηνών Κύριον, Κύριον Γερμανόν (περί της Μονής της Οσίας Φιλοθέης)
Authors: ΧΡΙΣΤΙΑΝΙΚΗ ΑΡΧΑΙΟΛΟΓΙΚΗ ΕΤΑΙΡΕΙΑ (ΧΑΕ)
Published: April 2016

no abstract
Αι εν τη μονή Φιλοθέης καταστραφείσαι πολύτιμαι βυζαντιακαί χριστιανικαί αρχαιότητες και αγιογραφίαι
Authors: ΛΑΜΠΑΚΗΣ Γεώργιος
Published: April 2016

no abstract
Επιστολή του Ι. Β. de Rossi
Authors: DE ROSSI Jean Baptiste
Published: April 2016

no asbtract
Έγγραφον της Γενικής Εφορείας των Αρχαιοτήτων και Μουσείων προς τον Σύμβουλον της Χριστιανικής Εταιρείας κ. Αντώνιον Βούρον
Authors: ΚΑΒΒΑΔΙΑΣ Π.
Published: April 2016

no abstract
Ευεργέται-Δωρηταί
Authors: ΧΡΙΣΤΙΑΝΙΚΗ ΑΡΧΑΙΟΛΟΓΙΚΗ ΕΤΑΙΡΕΙΑ (ΧΑΕ)
Published: April 2016

no abstract
Immigration in Greece: overview and perspectives
Authors: Robolis Savvas
Published: April 2016

The present paper examines immigration
in Greece over the past two decades.
Economic immigrants in Greece, despite
the absence of reliable offi cial data, exceed
one million, while immigration has lead
to the development of policies relating
to the planning and implementation of
a coherent immigration policy centered
on the legalization and the integration
of immigrants in the Greek society. This
necessity stems from the twenty year old
existence of immigration in Greece as well
as from a series of developments affecting
core public policies such as education,
employment, income, social insurance,
health care, residence, legalization and
integration of immigrants.
Nonetheless, it should be pointed out,
that the size and the complexity of the
phenomenon requires the development
of a coherent policy that will in turn
enhance effectiveness in tackling the
social, economic, and political aspects
of immigration. In addition, the role of
immigrants in society, the labor market
and the economy constitutes a further
point towards that direction.
Η συμβολή της οικιακής εργασίας στην προνοιακή περιθωριοποίηση των μεταναστριών
Authors: Ψημμένος Ιορδάνης
Published: April 2016

A combined analysis of migrants’ work
conditions and views about social protection
reveals the trajectories of welfare
marginalisation. The article here examines
those trajectories, through a closer look at
the occupation of domestic work and how it
distantiates migrant Albanian and Ukrainian
women from social insurance, health and
pre-school care services. Realizing that
there are objective and subjective factors
which determine welfare access, the analysis
argues that the routes of entry into domestic
work, its organisational structure and the
acquired attitudes and values associated
with it trap women into welfare marginality.
Manos Spyridakis, The Liminal Worker. An ethnography of work, unemployment and precariousness in Contemporary Greece, Farnham, Ashgate, 2013
Authors: Sakellaropoulos Theodoros
Published: April 2016

No abstract
Υγεία και ασφάλεια των εργαζομένων στην Ελλάδα, το ευρωπαϊκό ρυθμιστικό πλαίσιο και η εθνική εφαρμογή του
Authors: Μέκος Κωνσταντίνος
Published: April 2016

This article examines the institutional framework
regulating health and safety at work in Greece.
The analysis reveals that the regulations concerning
occupational health and safety are mainly
of European origin, since national legislation is
harmonized with the Community Directives. On
the other hand, the enforcement mechanisms of
the legislation between member-states hardly
converge, since the public administration of each
country still operates with its own functions and
procedures. The organizational structure and
history of each enforcement mechanism are of
great importance, while its independence from
the government is essential for its impartiality.
The European Social Charter is also mentioned in
the article, though its significance is deemed to
be limited up to now.
Older Women’s employment: the pension crisis and the crisis of care
Authors: Bould Sally , Falsao Casaca Sara
Published: April 2016

This paper explores the employment figures
for older women, aged 55-64 in 14 European
Union (EU) countries, with attention to the
kind of support which is available to older
working women caring for family members
in need. There is a diversity of employment
behavior for older women as well as services
to assist them in caring for older family
members but the current policies on “active
aging” and the gender neutral approach to
pension reform does not take into account
the unpaid work of caregiving. Where older
women are typically employed during these
later years in the Nordic countries, there
are a range of supports to assist them with
caring for family members. In contexts
where the state provision of eldercare
facilities is weak if the adult daughters are
now expected to work, who will care for the
very old parents?
Ebbinghaus Bernhard (ed.), The Varieties of Pension Governance, Oxford, Oxford University Press, 2011
Authors: Angelaki Marina
Published: April 2016

[Δεν υπάρχει]
Income inequality in Europe and the US: a partisan issue?
Authors: Zartaloudis Sotiris
Published: April 2016

This paper discusses the levels, trends and causes
of income inequality in Europe and the US. On
the one hand, it finds that although market
income inequality has generally risen, it did so
more in some countries and less in others. On
the other hand, disposable income inequality
has had a puzzling irregular development. The
latter is higher in the US, whereas in Europe
three clusters of countries exist: Mediterranean
and Central and Eastern European (CEE)
countries have the highest disposable income
inequality –with the UK being the only rich EU
country belonging to this group. Continental
Europe has medium to low inequality while the
lowest is found in the Scandinavian ones. The
only exceptions to this ranking are some of the
CEEs who belong to the group with the lowest
disposable income inequality. It is argued that
the best explanation for this classification and the
national disposable income inequalities’ history
is the different national public policy, that is,
national redistributive policies, different taxation
systems and social security contributions, which
stems from the political ideology of the ruling
party, the overall effectiveness and generosity of
redistributive policies.
I ndustrial work in Germany: opportunities and potential for an innovative work policy
Authors: Sanders Frauke
Published: April 2016

The paper focuses on the long- lasting initiatives aimed at the restructuring of German industries and their adjustment to the new highly competitive globalized environment. The automotive industry has been used on various occasions for the development of economic, social and industrial strategies. The paper focuses in particular on the Volkswagen “AUTO 5000” programme and the empirical data collected by SOFI. “AUTO 5000” constitutes a best practice example, providing a win-win solution for both employers and employees. The paper claims that this productive-industrial restructuring was combined with an innovative employment policy which ultimately improves workers’ position within the new capitalist production system.
Η επίδραση της ευρωπαϊκής στρατηγικής απασχόλησης στην ελληνική πολιτική απασχόλησης: μια περίπτωση «γνωσιακού» εξευρωπαϊσμού;
Authors: Φερώνας Ανδρέας
Published: April 2016

Τhis article examines the role of OMC, as a ‘soft’ mode of governance, in the Europeanisation of national policies is examined. Recent OMC bibliography highlights its cognitive effects, suggesting that the level of its influence varies nationally according to country and welfare regime and depends on the distance between national sociopolitical situation and European requirements. The examination of some aspects of the impact of European Employment Strategy on Greek employment policy, that follows as a case study, confirms to a large extent the aforementioned hypothesis. In addition, it shows that Europeanisation through OMC in some cases might be stronger and lead to some degree of convergence in policy outcomes.
Inequality, poverty and living conditions in Greece: Recent developments and prospects
Authors: Mitrakos Theodore
Published: April 2016

This paper presents the recent trends and
the characteristics of inequality, poverty and
living conditions in Greece, emphasising on
the distributional effects of the austerity
measures adopted during the current
economic crisis. Moreover, the decomposition
analysis of the study examines the structure
of inequality and the contribution of various
income sources in overall inequality, while
the main characteristics of the Greek social
solidarity system and the poor distributional
impact of social benefits are also discussed. For
this purpose, the household income from the
Greek Household Budget and the EU Statistics
of Income and Living Conditions surveys are
used. The available data indicate that income
inequality and relative poverty increased,
yet not dramatically, during the current
crisis, although the composition of the poor
population changed considerably. However,
the sharp decline in disposable income and
the dramatic increase in unemployment led
to a significant deterioration in economic
prosperity and absolute poverty, i.e. when
the poverty line in real terms remains stable
in the pro-crisis levels.
Governing the Euro area in good times and bad, Oxford University Press , Oxford 2011.
Authors: Carrera Leandro N.
Published: April 2016

No abstract
Kevin Featherstone & Dimitris Papadimitriou, The Limits of Europeanization. Reform Capacity and Policy Confl ict in Greece, Palgrave Macmillan, 2008, p. 247
Authors: Angelaki Marina
Published: April 2016

No abstract (available). 
Ion-Molecular Memory Model. Retrieving Information and the Temporary Memory
Authors: Герасимов  , Gerasimov I. , Яшин  , Yashin A.
Published: April 2016

The article is devoted to the issues of retrieving information and the temporary memory in frame of formation of the ion-molecular memory model. It is shown that the retrieving information, i.e., in everyday life language -remembering, in essence functioning close to the process of memorizing discussed in the previous article in the series. Memorizing and remembering are the essence of "antagonists" (plus or minus) with an almost identical mechanism of action. Here the main task memory to recall what exactly you need to remember. This isn´t a tautology, but the essence of the process. With this purpose, some image is formed as a mask search implicating the information about the image search, and the vector information retrieval. Obviously, the retrieval of information from memory and memorizing are carried out by means of images (fractals, wavelets, soliton-holograms etc). Scheme of retrieving information from the library memory is proposed and substantiated. Factor of the temporary memory is defined. The last point, the authors emphasize in the article because of its importance in the process of retrieving information from memory. The memory itself has many self-manifestations, but the most significant of them is the essence of short-term memory and long-term memory. There´s an emphasis: temporary, i.e., the primary question is about the characteristic time of storing information in memory. It is important to consider: long-term memory cannot exist without short-term memory, which operation is required the initial stage of memory formation in general, and short-term memory is considered as not completed memory in the sense that fixed in it facts-images weren´t recorded in the library memory and weren´t contained in it.
Sequents for non-wellfounded mereology
Authors: Maffezioli Paolo
Published: April 2016

The paper explores the proof theory of non-wellfounded mereology with binary fusions and provides a cut-free sequent calculus equivalent to the standard axiomatic system.
Human acellular dermal wound matrix for complex diabetic wounds
Authors: Rupert P.
Published: April 2016

Objective:

Diabetic ulcers are the most common foot injuries leading to lower-extremity amputation and the most common cause of non-traumatic lower extremity amputations in the industrialised world. Approximately 85% of all diabetes-related lower-extremity amputations are preceded by foot ulcers. When foot ulcers develop despite preventive measures, early and appropriate treatment should be initiated to help reduce the burden of diabetes-related amputations. Recent advances now offer these patients a regenerative process of restoring the wound with human integument by replacing damaged or missing tissue with similar tissue rather than scar formation. The aim of this product evaluation was to test the efficacy of regenerative products on complex diabetic wounds.

Method:

Before wound intervention, the underlying comorbidities of type II diabetes mellitus and osteomyelitis were treated. In the operating room, the wounds received a sterile surgical scrub and were treated with either regenerative tissue matrix sutured over the open wounds or regenerative flowable soft tissue scaffold placed in a plantar tunnelled wound. Negative pressure wound therapy (NPWT) was applied for 10–14 days to create an environment that promotes wound healing, to secure the grafts, and to facilitate adhesion of the matrix to the wound bed.

Results:

All wounds, three in two patients, completely epithelialised without any complications at the end of the 17-week follow-up period.

Conclusion:

With the absence of complications and successful wound epithelialisation in a variety of diabetic wounds, regenerative tissue matrix products have taken the next step forward in wound healing.
Fissures in the image of thought: Difference, photography and the networked image
Authors: Srbic Dario
Published: April 2016

Copy of a copy of a copy of a copy of a copy of … Trent Reznor’s formula sounds so much more exciting and seductive than two millennia-old formula of representation and identity also known as A=A. Oversubscribed to central perspective, concerned with clarity and distinctness
too content with the content of the image and strongly bonded with its apparatus, photography of the past century repeatedly failed to see the invisible, still acting as a copy of some ideal original, assuming this role from painting. If the painting managed to free itself from representation,
what can photography do? With new technologies of image production and dissemination, the pillars of the image of thought begin to crack, with identity and recognition losing the centre stage to difference and repetition. Through the emergence of the ability to photograph everywhere, automated
camera and ubiquitous digital dissemination of images, photography is suddenly revealed as the medium of a copy, of uncountable recurrences of the same, and with all of its subjects and objects becoming simulacra, rendering only difference as real and originary.
La Culture est l’Inversion de la Vie
Authors: Memou Antigoni
Published: April 2016

Constructed Situations: A New History of the Situationist International, Frances Stracey (2014) London: Pluto, 200 pp., ISBN: 9780745335261, p/bk, £15.00
Evidence and Graham Harman’s Third Table
Authors: Ainsworth Peter
Published: April 2016

In this article I discuss Larry Sultan and Mike Mandel’s Evidence, 1977 contextualized by Graham Harman’s text, produced for ‘dOCUMENTA(13)’, The Third Table, 2012. It is my contention that, although Evidence may have been produced to subvert the modernist tropes
of authorship and narrative, or to draw our attention to visual material, which is ‘ready-to-hand’, the photographs can also be explored as a visual metaphor for Graham Harman’s approach to Object-Orientated Ontology (OOO). I seek to demonstrate that there is significance
in analysing the work in the context of Harman’s description of relations, his concepts of ‘overmining’ and ‘undermining’ and debates surrounding ‘OOO’. The article is a reading of the photographs, where the caption-less, unreferenced images, selected
by Sultan and Mandel from various institutions and recontextualized in relation to art, are explored through ideas contained in Harman’s short text.
Influence of the Stator Winding Vibration on the Insulation System Lifetime
Authors: Štauber Jiří , Kuruc Tomáš , Pašek Roman , Smolík Luboš , Krupauer Petr
Published: April 2016

The article deals with establishing of natural frequencies at the stator endwinding in stage of design of the machine (generator) and then measurement of the mode shapes (modal analysis on a real machine).
Model Predictive Control for Offset-Free Reference Tracking
Authors: Belda Květoslav
Published: April 2016

<span style="font-family: 'Times New Roman',serif; font-size: 10pt; -ms-layout-grid-mode: line; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-GB">The paper deals with the offset-free reference tracking problem of the Model Predictive Control (MPC). That problem is considered for a class of the constant or occasionally changed constant reference signals. Proposed solution arises from a simple subtraction of the ARX model
 of two consecutive time steps. The solution is adapted
 to a state-space form and it corresponds to usual predictive control design without increase of the design complexity. The construction of the prediction equations and pre­dictive controller structure is explained in the paper.
A Mathematical Model of Thermal Processes
Authors: Lucák Jiří
Published: April 2016

<span style="font-family: 'Times New Roman',serif; font-size: 10pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">The paper is focused on heating within the electric resistance furnaces. Muffle resistance furnaces were chosen as a subject of the examination. The first part of the paper is aimed to describe the examined object from technology and construction points of view. The issue of a mathematical model of the muffle furnace is explained in the next chapter. The main part of the paper is aimed to divide the furnace into the lumped thermal capacitances and to create the system of temperature differential equations of state that characterize the object.
The end of slow networks
Authors: Binnig Carsten , Crotty Andrew , Galakatos Alex , Kraska Tim , Zamanian Erfan
Published: April 2016

The next generation of high-performance networks with remote direct memory access (RDMA) capabilities requires a fundamental rethinking of the design of distributed in-memory DBMSs. These systems are commonly built under the assumption that the network is the primary bottleneck and should be avoided at all costs, but this assumption no longer holds. For instance, with InfiniBand FDR 4×, the bandwidth available to transfer data across the network is in the same ballpark as the bandwidth of one memory channel. Moreover, RDMA transfer latencies continue to rapidly improve as well. In this paper, we first argue that traditional distributed DBMS architectures cannot take full advantage of high-performance networks and suggest a new architecture to address this problem. Then, we discuss initial results from a prototype implementation of our proposed architecture for OLTP and OLAP, showing remarkable performance improvements over existing designs.
Leopard
Authors: Huang Jiewen , Abadi Daniel J.
Published: April 2016

This paper introduces a dynamic graph partitioning algorithm, designed for large, constantly changing graphs. We propose a partitioning framework that adjusts on the fly as the graph structure changes. We also introduce a replication algorithm that is tightly integrated with the partitioning algorithm, which further reduces the number of edges cut by the partitioning algorithm. Even though the proposed approach is handicapped by only taking into consideration local parts of the graph when reassigning vertices, extensive evaluation shows that the proposed approach maintains a quality partitioning over time, which is comparable at any point in time to performing a full partitioning from scratch using a state-the-art static graph partitioning algorithm such as METIS. Furthermore, when vertex replication is turned on, edge-cut can improve by an order of magnitude.
SlimShot
Authors: Gribkoff Eric , Suciu Dan
Published: April 2016

Increasingly large Knowledge Bases are being created, by crawling the Web or other corpora of documents, and by extracting facts and relations using machine learning techniques. To manage the uncertainty in the data, these KBs rely on probabilistic engines based on Markov Logic Networks (MLN), for which probabilistic inference remains a major challenge. Today's state of the art systems use variants of MCMC, which have no theoretical error guarantees, and, as we show, suffer from poor performance in practice.

In this paper we describe SlimShot (Scalable Lifted Inference and Monte Carlo Sampling Hybrid Optimization Technique), a probabilistic inference engine for knowledge bases. SlimShot converts the MLN to a tuple-independent probabilistic database, then uses a simple Monte Carlo-based inference, with three key enhancements: (1) it combines sampling with safe query evaluation, (2) it estimates a conditional probability by jointly computing the numerator and denominator, and (3) it adjusts the proposal distribution based on the sample cardinality. In combination, these three techniques allow us to give formal error guarantees, and we demonstrate empirically that SlimShot outperforms to-day's state of the art probabilistic inference engines used in knowledge bases.
The Rise of the Notion of Illegitimate Debt: a Comment on “Rethinking Sovereign Debt: Politics, Reputation, and Legitimacy in Modern Finance” by Odette Lienau
Authors: Ishikawa Tomoko
Published: April 2016

“Rethinking Sovereign Debt: Politics, Reputation, and Legitimacy in Modern Finance” by Odette Lienau convincingly challenges the notion that the norm of debt continuity is a “stable and inevitable market principle” by providing a thorough analysis of the historical and political contexts surrounding this norm. The author’s approach which goes beyond the “market narrative” on the norm of debt continuity provides significant insights into the difficult issues of debt repudiation. This approach reveals the politically and historically variable nature of the norm of debt continuity. As such, the author demonstrates the openness and the possible development of sovereign debt practices towards accepting a more flexible and non-statist approach to sovereign debt management.
Evaluation of lysozyme, complement C3, and total protein in different developmental stages of Caspian kutum (Rutilus frisii kutum K.)
Authors: Abdollahi Razieh , Heidari Behrooz , Aghamaali Mahmoudreza
Published: April 2016

In this study, non–specific immune parameters in fertilized eggs, eyed embryos, larvae 10, 25, 50, 60, and 70 days post hatch (DPH), and female broodstock of Caspian kutum, Rutilus frisii kutum (Kamensky), were evaluated. The lysozyme activity, complement C3, and total protein levels were measured with the turbidimetric, immunoturbidimetric, and Bradford methods, respectively. The results showed that lysozyme levels decreased from levels noted in the fertilized eggs until the larvae were 10 days old. Subsequently, significant increases in lysozyme levels were observed until 70 DPH. An increasing trend of complement component C3 was noted from the levels in fertilized eggs to 10 DPH, following which it decreased significantly. Total protein levels differed significantly in early developmental stages of Caspian kutum. The higher values of complement component C3 than of lysozyme in the early life stages could be indicative of the former’s more fundamental role.
Genetic diversity of Diplomonadida in fish of the genus Coregonus from Southeastern Siberia
Authors: Denikina Natalia , Nebesnykh Ivan , Maikova Olga , Dzyuba Elena , Belkova Natalia
Published: April 2016

Diplomonadida are primitive flagellate protozoa, among which both commensals and pathogens have been recorded. To date, members of the genera
Synthesis, characterization and evaluation of biological activities of some 2,3-diaryl bicyclo methanones
Authors: Thirunarayanan Ganesamoorthy
Published: April 2016

Sixteen (3,4-dichlorophenyl)-3-(substituted phenyl)bicyclo[2.2.1]hept-5-ene-2-yl) methanone derivatives have been synthesized by an aqueous phase fly-ash catalyzed [4+2] cycloaddition Diels-Alder reaction of cyclopentadiene and 3,4-dichloro phenyl chalcones. The yields of the methanones were greater than 60%. The synthesized methanones were characterized by their physical constants and spectral data. The antimicrobial and antioxidant activities of the synthesized methanones were evaluated using a variety of bacterial and fungal species and DPPH radical scavenging methods.
3D Numerical Simulation of Laminar Flow and Conjugate Heat Transfer through Fabric
Authors: Zhu Guocheng , Kremenakova Dana , Wang Yan , Militky Jiri , Mishra Rajesh , Wiener Jakub
Published: April 2016

The air flow and conjugate heat transfer through the fabric was investigated numerically. The objective of this paper is to study the thermal insulation of fabrics under heat convection or the heat loss of human body under different conditions (fabric structure and contact conditions between the human skin and the fabric). The numerical simulations were performed in laminar flow regime at constant skin temperature (310 K) and constant air flow temperature (273 K) at a speed of 5 m/s. Some important parameters such as heat flux through the fabrics, heat transfer coefficient, and Nusselt number were evaluated. The results showed that the heat loss from human body (the heat transfer coefficient) was smallest or the thermal insulation of fabric was highest when the fabric had no pores and no contact with the human skin, the heat loss from human body (the heat transfer coefficient) was highest when the fabric had pores and the air flow penetrated through the fabric.
Die Führungskraft als Coach
Authors: Bartlakowski Katja
Published: April 2016

Ob Führungskräfte ihre Mitarbeiter

Aus Gründen der besseren Lesbarkeit wird auf die gleichzeitige Verwendung männlicher und weiblicher Sprachformen verzichtet. Sämtliche Personenbezeichnungen gelten gleichwohl für beiderlei Geschlecht.

coachen können oder sollten, wird kontrovers diskutiert. Viele sprechen sich dagegen aus. Zu groß sei der Rollenkonflikt der Führungskraft. Definiert man jedoch die in der Regel leistungsfördernde Mitarbeiterzufriedenheit als Führungsaufgabe, liegt der Coachinggedanke nicht mehr fern. Denn systemisches Coaching ist ein Ansatz zur Arbeit an und in Beziehungen. Und stimmt die Beziehungsebene in der Organisation, stellt sich zumeist auch Zufriedenheit ein.
Engineering of small diameter tubular compacted fibrin matrices
Authors: Aper Thomas , Wilhelmi Mathias , Hoeffler Klaus , Benecke Nils , Haverich Axel
Published: April 2016

Fibrin is widely used in different approaches of tissue engineering. Nevertheless, poor biomechanical strength restricts its use namely in cardiovascular tissue engineering. We have recently developed a novel moulding technique for the generation of highly stable fibrin tubes. The purpose of this study was the application of this method to the generation of small calibre fibrin tubes for the generation of bioartificial vascular grafts with a diameter of 3 mm. Therefore, a fibrinogen preparation was separated from plasma by means of cryoprecipitation and applied to a high-speed rotating casting mould in a low concentration to achieve slow polymerization and thereby uniform distribution of the fibrinogen. Thus, uniformly moulded 10 cm long fibrin tubes with a diameter of 3 mm were generated from 145±22 mg fibrinogen precipitated from 50 mL plasma. Thickness of the wall (522±57 μm) and biomechanical strength (47.4±11.1 kPa) were equable over the whole length of the tubes. Burst strength was 367±49 mm Hg. Thus, the developed technique enables the generation of tubular fibrin segments with a high biomechanical stability and represents a powerful tool for the generation of custom-made bioartificial vascular grafts.
A Comprehensive Survey and Analysis on Access Control Schemes in Cloud Environment
Authors: Shynu P. G. , Singh K. John
Published: April 2016

Cloud computing has emerged as the most dominant computational paradigm in recent times. There are tremendous benefits for enterprises adopting cloud technologies. It provides resources and services on demand, pay-as-you go basis. This includes infrastructure, platform and software services. But there are still a number of security threats and challenges associated with utilizing cloud computing. A proper access control is the fundamental security requirement in any cloud environment, to avoid unauthorized access to the cloud systems. As cloud computing supports multi-tenancy and has a various categories of users with different sets of security requirements, traditional access control models and policies cannot be used. This paper discusses on various access control models used for cloud environment and presents a detailed requirement analysis for developing an access control, specifically for the cloud. A comprehensive study on various security problems associated with outsourced data on the cloud and their existing solutions are also described, with the future research directions.
Mitigating Hot Spot Problems in Wireless Sensor Networks Using Tier-Based Quantification Algorithm
Authors: Balamurali R. , Kathiravan K.
Published: April 2016

One of the key issues in Wireless Sensor Networks (WSN) is the hot-spot problem i.e. the nodes closer to the sink tend to drain their energy at a faster rate when compared to other nodes as they have to perform more communication and hence the sensor network may get isolated. In this paper we are using an integrated MAC and routing protocol which divides the network into tiers. We also propose a quantification algorithm, which decides the number of nodes in each tier to mitigate the hot-spot problem.
Strategy for Individuals Distribution by Incident Nodes Participation in Star Topology of Distributed Evolutionary Algorithms
Authors: Balabanov Todor , Zankinski Iliyan , Barova Maria
Published: April 2016

One of the strongest advantages of Distributed Evolutionary Algorithms (DEAs) is that they can be implemented in distributed environment of heterogeneous computing nodes. Usually such computing nodes differ in hardware and operating systems. Distributed systems are limited by network latency. Some Evolutionary Algorithms (EAs) are quite suitable for distributed computing implementation, because of their high level of parallelism and relatively less intensive network communication demands. One of the most widely used topologies for distributed computing is the star topology. In a star topology there is a central node with global EA population and many remote computation nodes which are working on a local population (usually sub-population of the global population). This model of distributed computing is also known as island model. What is common for DEAs is an operation called migration that transfers some individuals between local populations. In this paper, the term 'distribution' will be used instead of the term 'migration', because it is more accurate for the model proposed. This research proposes a strategy for distribution of EAs individuals in star topology based on incident node participation (INP). Solving the Rubik's cube by a Genetic Algorithm (GA) will be used as a benchmark. It is a combinatorial problem and experiments are done with a C++ program which uses OpenMPI.
Mapping of Acoustic Noise and Microwave Radiation
Authors: Kudriashov Volodymyr V. , Garbar Artem Yu. , Lukin Sergii K. , Palamarchuk Volodymyr P. , Lukin Konstantin A.
Published: April 2016

Passive sensor systems are attractive for monitoring due to the absence of probing emissions. Two passive systems: an acoustic camera, manufactured by Brüel & Kjær (Sound and Vibration Measurement A/S) and a microwave radiometer are considered in the paper. The performance of these systems is carefully analyzed. The obtained results show the limitations of the acoustic camera in acoustic noise source localization caused by specific side lobes of a pattern of its microphone array. A suggestion how to avoid them is given. Application of microwave bistatic radiometer provides information about thermal electromagnetic radiation of objects in 3D spatial coordinates. The generated radiometric maps contain amplitude and phase information, which is suitable for estimation of displacements/vibration. The received results are applicable in nondestructive testing.
Analyte stability during the total testing process: studies of vitamins A, D and E by LC-MS/MS
Authors: Albahrani Ali A. , Rotarou Victor , Roche Peter J. , Greaves Ronda F.
Published: April 2016

Background:

There are limited evidence based studies demonstrating the stability of fat-soluble vitamins (FSV) measured in blood. This study aimed to examine the effects of light, temperature and time on vitamins A, D and E throughout the total testing process.

Methods:

Four experiments were conducted. Three investigated the sample matrix, of whole blood, serum and the extracted sample, against the variables of temperature and light; and the fourth experiment investigated the sample during the extraction process against the variable of light. All samples were analysed via our simultaneous FSV method using liquid chromatography-tandem mass spectrometry technology. The allowable clinical percentage change was calculated based on biological variation and desirable method imprecision for each analyte. The total change limit was ±7.3% for 25-OH-vitamin D3, ±11.8% for retinol and ±10.8% for α-tocopherol.

Results:

Vitamins D and E were stable in the investigated conditions (concentration changes <4%) in the pre-analytical and analytical stages. Vitamin A showed photosensitivity in times >48 h with concentration changes of −6.8% (blood) and −6.5% (serum), both are within the allowable clinical percentage change. By contrast, the extracted retinol sample demonstrated a concentration change of −18.4% after 48 h of light exposure. However, vitamin A in the serum and extracted solution was stable for one month when stored at −20°C.

Conclusions:

Blood samples for vitamins D and E analyses can be processed in normal laboratory conditions of lighting and temperature. The required conditions for vitamin A analysis are similar when performed within 48 h. For longer-term storage, serum and vitamin A extracts should be stored at −20°C.
Comparison of three analytical platforms for quantification of the neurofilament light chain in blood samples: ELISA, electrochemiluminescence immunoassay and Simoa
Authors: Kuhle Jens , Barro Christian , Andreasson Ulf , Derfuss Tobias , Lindberg Raija , Sandelius Åsa , Liman Victor , Norgren Niklas , Blennow Kaj , Zetterberg Henrik
Published: April 2016

Background:

Neuronal damage is the morphological substrate of persisting neurological disability. Neurofilaments (Nf) are specific cytoskeletal proteins of neurons and their quantification has shown encouraging results as a biomarker for axonal injury.

Methods:

We aimed at comparing a widely used conventional ELISA for Nf light chain (NfL) with an electrochemiluminescence-based method (ECL assay) and a newly developed single-molecule array (Simoa) method in clinically relevant cerebrospinal fluid (CSF) and serum samples.

Results:

Analytical sensitivity was 0.62 pg/mL for Simoa, 15.6 pg/mL for the ECL assay, and 78.0 pg/mL for the ELISA. Correlations between paired CSF and serum samples were strongest for Simoa (r=0.88, p<0.001) and the ECL assay (r=0.78, p<0.001) and weaker for ELISA measurements (r=0.38, p=0.030). CSF NfL measurements between the platforms were highly correlated (r=1.0, p<0.001). Serum NfL levels were highly related between ECL assay and Simoa (r=0.86, p<0.001), and this was less visible between ELISA-ECL assay (r=0.41, p=0.018) and ELISA-Simoa (r=0.43, p=0.013). Multiple sclerosis (MS) patients had significantly higher serum NfL levels than controls when measured with Simoa (p=0.001) but not with the other platforms.

Conclusions:

We found Simoa to be more sensitive than ELISA or the ECL assay. Our results support the feasibility of quantifying NfL in serum; the results correlate with the more-established CSF NfL test. The highly sensitive Simoa technology deserves further studies in larger patient cohorts to clarify whether serum NfL could be used in the future to measure disease severity and determine prognosis or response to treatment interventions in neurological diseases.
“Nativeness” and Intelligibility: Impacts of Intercultural Experience Through English as a Lingua Franca on Chinese Speakers’ Language Attitudes
Authors: Wang Ying , Jenkins Jennifer
Published: April 2016

This paper investigates the impacts of intercultural experience through English as a lingua franca (ELF) on language attitudes, with the focus on Chinese Speakers’ narratives of ELF experience in relation to their views of Englishes. The data retrieved through 769 questionnaires and 35 interviews with Chinese users of English revealed the impacts in four aspects. First, the lack of ELF experience helps to maintain the assumption that conformity to native English is necessary for interactants to understand each other. Second, ELF experience triggers the question about the exclusive connection between nativeness and intelligibility. Third, it raises challenges to the exclusive relevance of native English for successful intercultural communication. Fourth, it helps to develop an awareness of intercultural communication strategies as important for communicative effectiveness in the context of the diversity of English. Attitudes revealed in the four aspects all point to a concern with the issue what is intelligible English. This paper thus discusses intelligibility in relation to (non-) nativeness and the role of intercultural experience in making sense of the issue of intelligibility, which leads to the exploration of pedagogical implications of this study.
Qualification Requirements for Foreign Suppliers in Public Procurement – Evidence from the Czech Republic
Authors: Vyklický Martin , Man Petr , Heidu Rudolf Franz , Jurčík Radek
Published: April 2016

Qualification requirements for foreign suppliers in Public Procurement (PP) are quite different in each European Union (EU) member state. The most complex requirements for foreign suppliers in the context of public purchases are included in the Czech PP law. The aim of this paper is to make an overview of the problem of qualification requirements for foreign suppliers in the PP law of the CR. Its sub-objectives are the identification and explanation of solutions to the problem in the PP legislation of neighboring countries of the CR that are also members of the EU. The methodological part of the contribution is based mainly on the analysis and critical evaluation of the current state of legal issues relating to the proof of qualification of foreign suppliers in PP orders of the CR; with examples of fairly extensive decision-making practices of the Office for the Protection of Competition and law courts, including the jurisprudence of the European Court of Justice. The paper highlights the unnecessary complexity of qualification requirements that, on purely formal grounds, inhibits submissions of tenders from potential foreign suppliers that would otherwise be able to submit a bid for a public contract without any problems whatsoever. The authors are using and applying a comparative-legal method in the context of the comparison of the PP legislation of neighboring countries of the CR that are also members of the EU. The case study of foreign suppliers bidding for above-threshold public tenders in the CR at the minimum legal requirements of the contracting authority (CA) for proof of qualification, the comparation study with selected EU countries or analysis of the development of the proportion of public contracts awarded to foreign suppliers in 2010–2014 shows that there is legislation uncertainty in EU PP law that should be reduced and simplified on an EC basis.
Steam gasification of oat with conversion of tars on clay catalyst and gas cleaning by condensation of steam
Authors: Zabłocka-Malicka Monika , Szczepaniak Włodzimierz , Zielińska Amelia , Rutkowski Piotr
Published: April 2016

Gasification of oat grains with steam at normal pressure has been performed in a laboratory scale. Experiments were carried out in a vertical quartz reactor, with a steady flow of the steam and immediate tars conversion at 900ºC on the catalytic bed prepared from local clay with simple additives. Condensation of steam excess enabled essential elimination of non-volatile components of the gas stream. Condensates were analyzed with GC-MS. The highest level of organic compounds was detected in experiment with non-catalytic bed of small quartz pieces (90.2 mg/15 g of oat grains) and successful decreased by 86% for original clay without additives (precursors), 94% for clay with magnesium precursor, 97% with iron and more than 99% with calcium one.
Glebokie Lake in Szczecin after hydrotechnical regulations
Authors: Miller Tymoteusz , Svobodova Zdenka , Meller Edward , Poleszczuk Gorzysław
Published: April 2016

Water quality of the Glebokie Lake in Szczecin (NW-Poland) was studied in years 2012-2014. Glebokie Lake is a reservoir with a negative water balance related to the location draining groundwater drinking water intake for Szczecin agglomeration. In 2004 hydrotechnical regulations were conducted aimed at maintaining a constant amount of water in the lake, which involved a temporary feeding Glebokie Lake with Gunica River waters. In order to determine the hydrochemical status of the Lake waters and the factors shaping water quality - 19 water quality indices within 25 months were measured: temperature, pH and water oxygen status, nutrients (N, P) and ionic macrocomponents and Fetot. Trophic status of the lake waters using the Carlson criteria was defined. On the basis of chemometric analysis of measurement data (CA, PCA/FA and DA) we established that statistically significant factors affecting water quality in the study period were: seasonal (the climatic seasons) changes in the biological processes activity, periodical (in April and November) waters inflows from the Gunica River, anthropopressure in during swimming season and the coagulant (FeSO4) presence in the ecosystem. The possibility of applying the chemometric techniques to interpret measurement data in the lake type like Glebokie Lake with a small amount of data has been shown.
Slovenes in Italy: A Fragmented Minority
Authors: Steinicke Ernst , Jelen Igor , Lieb Gerhard Karl , Löffler Roland , Čede Peter
Published: April 2016

The study examines the Slovenian-speaking minority in the northern Italian autonomous region of Friuli-Venezia Giulia. It explores the spatial fragmentation in the Slovenian settlement area in Italy and analyzes the socio-economic and demographic processes that exert influence on the minority. The work is based on the critical evaluation of the current status of research, of statistical data from the state censuses and results of own research on site. The Slovenian-language population in the entire region is currently estimated at about 46,000 people. The main settlement area is the eastern border region of Friuli-Venezia Giulia, which is characterized by different cultural and regional identities. While the Slovenian-speaking population of Friuli focuses more on its cultural and regional distinctions, the majority of the Slovenian-language group in Venezia Giulia considers itself a “national minority.”
Serpentinite in the Śnieżnik Massif: petrology and ecological impact
Authors: Pędziwiatr Artur
Published: April 2016

The paper presents a locality related to the occurrence of serpentinite body from the
western slope of Żmijowiec in the Śnieżnik Massif. On the basis of field observations
and numerous literature references, I provide a detailed geological description of this
site and discuss the origin and tectonic settings of the serpentinite body. Apart from
compelling geology, these rocks are site for ladder spleenwort, a rare species protected
in Poland as well as in the European Union.