bluuebunny/crossref_metadata_2025_split huggingface dataset:
Εκπαιδευτική Τηλεόραση 2.0: το Πείραμα της Ψηφιακής Μετάβασης
Authors: Τσακαρέστου Μπέττυ , Παπαδημητρίου Σοφία 
Published: June 2016

<p>Εκπαιδευτικοί και μαθητές αξιοποιούν τις δυνατότητες που προσφέρει η δεύτερη γενιά του Παγκόμιου ιστού (Web 2.0), για ανταλλαγή ιδεών, γνώσεων και πληροφοριών, συνεργασία μεταξύ των ομάδων τους, άνοιγμα στην παγκόσμια κοινότητα της εκπαίδευσης, ενεργό συμμετοχή στην παραγωγή της γνώσης και στην πρόσβαση στον παγκόσμιο ψηφιακό ανοιχτό πλούτο των ιδεών και των καινοτομιών. Η <em>Εκπαιδευτική Ραδιοτηλεόραση</em> μπαίνει δυναμικά στην ψηφιακή εποχή και συνδέεται οργανικά με τους νέους ανθρώπους και τις κοινότητές τους. Μετασχηματίζεται σταδιακά σε μια <em>multimedia</em> πλατφόρμα, συνδεδεμένη με τους σημαντικότερους ιστότοπους κοινωνικής δικτύωσης και προσφέρει στις ομάδες των μαθητών και εκπαιδευτικών τους, το περιβάλλον και τα εργαλεία για να αναπτύξουν τα δικά τους <em>multimedia projects</em>. Μετά τον πρώτο χρόνο του εγχειρήματος της ψηφιακής μετάβασής της, παρουσιάζονται οι στόχοι, οι δράσεις και τα πρώτα αποτελέσματα της <em>Εκπαιδευτικής Τηλεόρασης 2.0</em>. </p>
The role of foreign languages in hospitality management
Authors: TZIORA NEKTARIA , GIOVANIS NIKOLAOS , PAPACHARALABOUS CHARALABOS 
Published: June 2016

<p><em>The paper addresses the subject of foreign languages in hospitality management under the scope of their significance for the Greek hospitality industry and their role in the hospitality management education. </em></p><p><em>Multilingualism offers a competitive advantage to both companies operating in the global hospitality market as well as people who pursue a career in it. The data presented herewith derives from a quantitative research that targeted managers of luxury hotels operating in Greece and hospitality management students. </em></p><p><em>The key findings indicate a contradiction between theoretical acknowledgement of the importance of foreign languages in hospitality management and its practical promotion, particularly in regard to fluency in foreign languages, in service training initiatives and level of offered training courses. The paper aims to bridge the gap by showcasing up to date studies and presenting the special features of the Greek reality to promote further investigation of the field and to encourage specific action. </em></p><p><em> </em></p><p class="Abstract"> </p>
Thirty years after - dramatic change in the coastal marine habitats of Kos Island (Greece), 1981-2013.
Authors: BIANCHI C. N. , CORSINI-FOKA M. , MORRI C. , ZENETOS A. 
Published: June 2016

Results of recent fieldwork were compared with data collected in 1981, taken as a reference condition. Surveys were conducted with the same method (time-based visual census along random paths), in the same sites, by the same people. Semi-quantitative inventories of conspicuous species were analysed by univariate and multivariate techniques. Available information on the main potential stressors indicated that a regime shift has occurred in these 30+ years: sea surface temperature rose by1-2°C, human pressure grew impressively, and invasion by several alien species took place. Consistently, a phase shift occurred in the biological communities. Of the 120 conspicuous species found in total, only 51 were common to both surveys; 31 species (‘losses’) were found in 1981 but not again in 2013, 38 (‘gains’) were found exclusively in 2013, 16 (‘winners’) increased their abundance, 8 (‘losers’) got scarcer, and 27 underwent little or no change. Gains included 7 alien, 2 nitrophilic, and 7 thermophilic species. Multivariate analysis evidenced biotic homogenisation in 2013 and huge change in rocky reef habitats. The once flourishing algal forests have disappeared to leave space to sponges and wide areas of bare substratum. This has most probably been the result of overgrazing by alien herbivorous fishes (Siganus luridus and S. rivulatus), whose establishment and spread has been favoured by seawater warming; the synergic action of local human impacts was also evidenced.
Bone micro-architectural analysis of mandible and tibia in ovariectomised rats
Authors: Liu H. , Li W. , Liu Y. S. , Zhou Y. S. 
Published: June 2016

Objectives This study aims to evaluate if micro-CT can work as a method for the 3D assessment and analysis of cancellous bone by comparing micro-CT with undecalcified histological sections in OVX rats. Methods The mandible and tibia of sham, ovariectomised (OVX) and zoledronate-injected ovariectomised (OVX-ZOL) rats were assessed morphometrically. Specimens were scanned by micro-CT. Undecalcified histological sections were manufactured from the specimen scanned by micro-CT and stained with haematoxylin and eosin. Bivariate linear regressions and one-way analysis of variance were undertaken for statistics using SPSS 16.0.1 software. Results There were highly significant correlations between undecalcified histological sections and micro-CT for all parameters (bone volume density (BV/TV), bone surface density (BS/BV), trabecular thickness (Tb.Th), trabecular number (Tb.N), and trabecular separation (Tb.Sp))in the mandible and tibia. Bone histomorphometric parameters analysed by both methods exhibited significant differences among sham, OVX, and OVX-ZOL groups. There were significant correlations between mandible and tibia in BV/TV, BS/BV, and Tb.Sp. Conclusions Micro-CT is a complementary tool to histological sections in basic research that could improve our understanding of bone histomorphometry. The mandible can be used as an effective site to assess bone morphometry of OVX or metabolic bone disease rat models. Cite this article: H. Liu, W. Li, Y. S. Liu, Y. S. Zhou. Bone micro-architectural analysis of mandible and tibia in ovariectomised rats: A quantitative structural comparison between undecalcified histological sections and micro-CT. Bone Joint Res 2016;5:253–262.
Pigmented villonodular synovitis of the hip
Authors: Steinmetz Sylvain , Rougemont Anne-Laure , Peter Robin 
Published: June 2016

Pigmented villonodular synovitis (PVNS) is a rare disease that can affect any joint, bursa or tendon sheath. The hip is less frequently affected than the knee, and hence is less discussed in scientific journals. PVNS of the hip mainly occurs in young adults, requiring early diagnosis and adequate treatment to obtain good results. There is no consensus on the management of PVNS of the hip in current literature. We will discuss the options for surgical intervention in hip PVNS using a literature review of clinical, biological, etiological, histological and radiographic aspects of the disease.Cite this article: Steinmetz S, Rougemont A-L, Peter R. Pigmented villonodular synovitis of the hip. EFORT Open Rev 2016;1:260-266. DOI: 10.1302/2058-5241.1.000021.
“Land to the Tiller”: Unrealized Agenda of the Revolution
Authors: Yemane-ab Abera 
Published: June 2016

Abstract
Land reform was perhaps the single most galvanizing issue of the Ethiopian Revolution. The changes effected in this regard led to the collapse of a social and political order that had prevailed for centuries. The Ethiopian Revolution broke the chains of serfdom and freed the peasants from feudal bondage. Although the archaic and exploitative land tenure system was brought to an end, the revolutionary slogan “land to the tiller” was not realized. The Land Reform Proclamation of 1975, which abolished the landlord-tenant relationship, at the same time instituted a new form of land tenure. It made the state the new landlord over all rural land in the country. The enshrinement of the state as the landlord over all of the rural land empowered it to intervene at will in the economic and political lives of people. This article aims to revisit the revolution’s land reform program and assess some of its legacies. The author’s perspective has been informed by his active involvement in the now largely forgotten Chilalo Agricultural Development Unit (CADU) project of the 1970s and his efforts to advance land reform legislation just before and after the 1974 revolution.
Historicizing Contemporary Growth: The Ethiopian Revolution, Social-Structural Transformation, and Capitalist Development
Authors: Admasie Samuel Andreas 
Published: June 2016

Abstract
This article aims to historicize the current conjuncture in Ethiopia, which is characterized by rapid economic growth. It aims to do so by using a historical and political economy perspective to analyze the social-structural transformation that the Ethiopian revolution entailed, the nature and dynamics of the social structures that emerged as a result of the Ethiopian revolution, and the manner in which those structural transformations relate to the current phase of capitalist growth in the country. It is argued that the Ethiopian revolution, by eliminating the rentier landlord class; by elevating in its place a modern petit bourgeois category to the commanding positions of the state apparatuses and of the economy; by creating an internal market out of the freed peasantry; by enhancing and deepening the relative autonomy of the state, along with its ability to intervene in the economy and act as an agent and promoter of accumulation; and by thoroughly subjugating labor, created a social structure conducive to capitalist development and laid the foundations for the current spurt of rapid capitalist growth.
Revolutionary Ethiopia through the Lens of the Contemporary Film Industry
Authors: Tadesse Bitania 
Published: June 2016

Abstract
This article assesses how Ethiopian historical films have engaged with the Ethiopian revolution. It analyzes the way in which contemporary Ethiopian cinema constructs the traumatic events of the past half century and in doing so contributes to a particular ideological understanding of Ethiopia’s past and present. Through utilizing certain techniques and tropes, historical films contribute to and perpetuate the hegemonic ideological interpretation of the Ethiopian Revolution of 1974 and the events associated with it. The article addresses the lacunae in the literature on the Ethiopian film industry, which in contrast to other cinemas in Sub-Saharan Africa has not been the focus of academic analysis.
Some Thoughts about the Ethiopian Left
Authors: Tadesse Kiflu 
Published: June 2016

Abstract
The article discusses the chronology of events during the revolutionary movement of Ethiopia in 1974, which finally resulted in usurpation of power by a military junta. It then turns to look at the Ethiopian Left, which took an important part in the movement. The emergence of the Ethiopian Left, the political and social dynamics that brought about the cleavage and early differences are given due attention. The symbiotic relationship between the reform acts that the military junta undertook and the defeat of the revolutionary movement are examined in detail. Finally, the article focuses on further deterioration of the relationship of the Left, which finally resulted in a carnage that engulfed the whole country.
Reachability of standard and fractional continuous-time systems with constant inputs
Authors: Rogowski Krzysztof 
Published: June 2016

Abstract
The reachability of standard and fractional-order continuous-time systems with constant inputs is addressed. Positive and non-positive continuous-time linear systems are considered. Necessary and sufficient conditions for the existence of such constant inputs that steers the system from zero initial conditions to the given final state in desired time are derived and proved. As an example of such systems the electrical circuits with DC voltage sources are presented.
Neurological Diseases of Small Ruminants in Greece: A Retrospective Study in 114 Flocks
Authors: Polizopoulou S Zoe , Giadinis D. Nektarios , Papahristou Andreas , Papaioannou Nikolaos 
Published: June 2016

Abstract
Although neurological diseases comprise an important part of small ruminant internal medicine, the number of retrospective studies on their epidemiology conducted to date is limited. This study reports an extensive review of epidemiological data on the occurrence of neurological diseases in Greek sheep and goat herds. The survey was based on data retrieved from the records of the Farm Animal Clinic, School of Veterinary Medicine, A.U.TH from January 2006 to May 2011. Historical information, clinical and neurological examination, clinicopathological and (if available) pathological evaluation were the minimum data recorded in each case.
Diseases of the nervous system represented 37.9% and 19.2% of the total evaluated sheep and goat caseload, respectively. The most frequent neurological disorders diagnosed in sheep were chronic coenurosis and Scrapie, which accounted for 72% of cases, followed by less common conditions like ovine lentiviral encephalomyelitis (OLE), listeriosis and acute coenurosis. In goats the frequency of various types of neurological diseases was more evenly distributed, with listeriosis and polioencephalomalacia being the most commonly encountered problems.
Effects of Glyphosate on Enzyme Activity and Serum Glucose in Rats Rattus norvegicus
Authors: Hasković Edhem , Pekić Melina , Fočak Muhamed , Suljević Damir , Mešalić Lejla 
Published: June 2016

Abstract
Glyphosate is a pesticide that influences many blood parameters if taken orally or subcutaneously. This pesticide causes important changes in the metabolic activity which can be measured by organospecific enzyme activity such as liver aminotransferases (AST and ALT), while glucose acts as a stress, energy and metabolism indicator after acute glyphosate exposure. In this research, glyphosate was applied subcutaneously to rats, administrated each 24 hours for a 15 days period. The concentration of the applied glyphosate was 2.8 g/kg. The experimental rats were 13 weeks old. The concentration of serum glucose, the activity of lactate dehydrogenase and liver transaminases (AST and ALT) were observed as indicators of metabolic changes after treatment. It was observed that glyphosate led to a statistically significant decrease of serum glucose level. Statistically significantly increased (p<0.05) AST, ALT and LDH activities are indicators of hepatocyte damage while LDH activity demonstrates damage of other tissues.
On Invariant Tori with Prescribed Frequency in Hamiltonian Systems
Authors: Zhang Dongfeng , Xu Junxiang , Wu Hao 
Published: June 2016

Abstract
In this paper we are mainly concerned with the persistence of invariant tori with prescribed frequency for analytic nearly integrable Hamiltonian systems under the Brjuno–Rüssmann non-resonant condition, when the Kolmogorov non-degeneracy condition is violated. As it is well known, the frequency of the persisting invariant tori may undergo some drifts, when the Kolmogorov non-degeneracy condition is violated. By the method of introducing external parameters and rational approximations, we prove that if the Brouwer topological degree of the frequency mapping is nonzero at some Brjuno–Rüssmann frequency, then the invariant torus with this frequency persists under small perturbation.
Existence and Multiplicity of Nontrivial Solutions to Quasilinear Elliptic Equations
Authors: Li Anran , Wei Chongqing 
Published: June 2016

Abstract
In this paper, Morse theory is used to study the existence and multiplicity of nontrivial solutions for the following class of quasilinear elliptic equations:

{

-

Δ
⁢
u

-

Δ
⁢

(

u
2

)

⁢
u

=

g
⁢

(
x
,
u
)

,

x
∈
Ω

,

u
=
0

,

x
∈

∂
⁡
Ω

,

$\left\{\begin{aligned} &\displaystyle{-}\Delta u-\Delta(u^{2})u=g(x,u),&&% \displaystyle x\in\Omega,\\ &\displaystyle u=0,&&\displaystyle x\in\partial\Omega,\end{aligned}\right.$

where

Ω
⊂

ℝ
N

${\Omega\subset\mathbb{R}^{N}}$

is a bounded open domain with smooth boundary

∂
⁡
Ω

${\partial\Omega}$

,

N
⩾
3

${N\geqslant 3}$

and g is a Carathéodory function with some additional growth conditions.
Die alte Litanei
Authors: Frey Winfried 
Published: June 2016

AbstractLitanies, which are sung in great variety also today, especially on pilgrimages, have been popular for centuries in the Catholic Church, as a form of prayer that creates a sense of community and makes people forget their everyday problems. But these kinds of function hold many dangers: they can arise also from ›unholy‹ causes and ›unholy‹ aims can be achieved with them. The »Deggendorfer Gnad«, a pilgrimage in memory of a host desecration in Lower Bavaria, allegedly committed by Jews, and the pilgrimage to Andreas of Rinn near Innsbruck, alleged victim of a ritual murder committed by Jews, may serve as examples of the effects and consequences the traditional but questionable litanies can have for the Christian-Jewish relationship.
Computational study on 3D structure of L-aspartic acid and L-glutamic acid: molecular descriptors and properties
Authors: Stefaniu Amalia , Savoiu Valeria Gabriela , Lupescu Irina , Iulian Olga 
Published: June 2016

Abstract
The aim of this work is to provide a comprehensive and complex analysis of molecular descriptors and properties of two similar amino acids, L-Aspartic acid and L-Glutamic acid, using a software tool for calculations and properties predictions. As amino acids are model compounds for predicting the physical-chemical properties and behavior of biological, larger molecules as peptides or proteins, researches were focused on providing accurate mechanical calculations using: molecular/mechanical methods. Our study aims to initiate a linear scaling approach, by dividing a large system into small subsystems and performing the calculations for each, individually, then, embedding and correcting the information globally. The calculations were performed on the 3D structure of the studied amino acids that were first generated, as CPK model, and optimized by energy minimization. A comparative assay on their topological, molecular descriptors and properties was conducted, in vacuum and in water, using the Hartree-Fock model and second-order Møller-Plesset perturbation theory MP2 for predicting structure, energy and property calculations with Spartan’14 software. Values of molecular properties such as area, volume, polar surface area, polarizability, ovality, logP, dipole moment, HOMO-LUMO gap, distances and angles between atoms, were obtained. The results have been interpreted in terms of electronic effects of side chain groups, molecular deformability, steric factors and reactivity. This approach can be extended to other amino acids in order to predict protein-ligand interactions, important aspects in drug design studies and protein engineering.
Modification of surface morphology of Ti6Al4V
alloy manufactured by Laser Sintering
Authors: Draganovská Dagmar , Ižariková Gabriela , Guzanová Anna , Brezinová Janette , Koncz Juraj 
Published: June 2016

Abstract
The paper deals with the evaluation of relation
between roughness parameters of Ti6Al4V alloy produced
by DMLS and modified by abrasive blasting. There were
two types of blasting abrasives that were used – white
corundum and Zirblast at three levels of air pressure. The
effect of pressure on the value of individual roughness parameters
and an influence of blasting media on the parameters
for samples blasted by white corundum and Zirblast
were evaluated by ANOVA. Based on the measured values,
the correlation matrix was set and the standard of correlation
statistic importance between the monitored parameters
was determined from it. The correlation coefficient
was also set.
Real-Time Demonstration of Optimized Spectrum Usage with LSA Carrier Aggregation
Authors: Wirth Thomas , Wieruch Dennis , Holfeld Bernd , Mehlhose Matthias , Pilz Jens , Haustein Thomas , Halfmann Rüdiger , Friederichs Karl-Josef 
Published: June 2016

AbstractMobile broadband networks will face a tremendous growth in data traffic demand over the next 20 years. A key requirement for the evolution of radio access networks is the increase in the amount of spectrum and optimized spectrum usage, in order to meet future service demands. More efficient spectrum use will come with evolving technology features and novel spectrum sharing models. Candidates for technology improvements are higher order and massive MIMO systems, cooperative base stations and CoMP techniques, highly optimized resource allocation algorithms, network densification with inter-cell interference management and highly flexible carrier aggregation techniques to extend spectrum. In this paper, we will highlight carrier aggregation combined with flexible spectrum assignment and use of spectrum databases following novel licensing schemes. We give an overview of LSA activities, present a 3CA demonstration platform enabling the LSA concept and discuss its implementation constraints.
Joint-angle specific strength adaptations influence improvements in power in highly trained athletes
Authors: Rhea Matthew R. , Kenn Joseph G. , Peterson Mark D. , Massey Drew , Simão Roberto , Marin Pedro J. , Favero Mike , Cardozo Diogo , Krein Darren 
Published: June 2016

PurposeThe purpose of this study was to examine the influence of training at different ranges of motion during the squat exercise on joint-angle specific strength adaptations.MethodsTwenty eight men were randomly assigned to one of three training groups, differing only in the depth of squats (quarter squat, half squat, and full squat) performed in 16-week training intervention. Strength measures were conducted in the back squat pre-, mid-, and post-training at all three depths. Vertical jump and 40-yard sprint time were also measured.ResultsIndividuals in the quarter and full squat training groups improved significantly more at the specific depth at which they trained when compared to the other two groups (<i>p</i> < 0.05). Jump height and sprint speed improved in all groups (<i>p</i> < 0.05); however, the quarter squat had the greatest transfer to both outcomes.ConclusionsConsistently including quarter squats in workouts aimed at maximizing speed and jumping power can result in greater improvements.
FPGA–Based Efficient Hardware/Software Co–Design for Industrial Systems with Consideration of Output Selection
Authors: Deliparaschos Kyriakos M. , Michail Konstantinos , Zolotas Argyrios C. , Tzafestas Spyros G. 
Published: June 2016

Abstract
This work presents a field programmable gate array (FPGA)-based embedded software platform coupled with a software-based plant, forming a hardware-in-the-loop (HIL) that is used to validate a systematic sensor selection framework. The systematic sensor selection framework combines multi-objective optimization, linear-quadratic-Gaussian (LQG)-type control, and the nonlinear model of a maglev suspension. A robustness analysis of the closed-loop is followed (prior to implementation) supporting the appropriateness of the solution under parametric variation. The analysis also shows that quantization is robust under different controller gains. While the LQG controller is implemented on an FPGA, the physical process is realized in a high-level system modeling environment. FPGA technology enables rapid evaluation of the algorithms and test designs under realistic scenarios avoiding heavy time penalty associated with hardware description language (HDL) simulators. The HIL technique facilitates significant speed-up in the required execution time when compared to its software-based counterpart model.
Application of Input–State of the System Transformation for Linearization of Selected Electrical Circuits
Authors: Zawadzki Andrzej , Różowicz Sebastian 
Published: June 2016

Abstract
The paper presents a transformation of nonlinear electric circuit into linear one through changing coordinates (local diffeomorphism) with the use of closed feedback loop. The necessary conditions that must be fulfilled by nonlinear system to enable carrying out linearizing procedures are presented. Numerical solutions of state equations for the nonlinear system and equivalent linearized system are included.