bluuebunny/crossref_metadata_2025_split huggingface dataset:
Two-Temperature Green and Naghdi Model on Thermoelastc Interaction in an Infinite Fibre-Reinforced Anisotropic Plate Containing a Circular Hole
Authors: Abbas Ibrahim A. 
Published: April 2013

Abstract
The present work is aimed at the study of thermoelastic interactions in an infinite fibre-reinforced anisotropic plate containing a circular hole in the context of a theory of generalized thermoelasticity in which the theory of heat conduction in deformable bodies depends on two different temperatures - conductive temperature and dynamic temperature. The two-temperature generalized thermoelastic model and one-temperature generalized thermoelastic model are formulated on the basis of Green and Naghdi theory of type II (2TGNII). The circular hole surface is assumed to be stress free and is subjected to a thermal shock. The problem is solved numerically using a finite element method. The effects of the presence and absence of reinforcement on the conductive temperature, the dynamical temperature, the stresses and the displacement distributions are studied. A comparison is made with the results predicted by the two theories. Results carried out in this paper can be used to design various fibre-reinforced anisotropic elements under thermal load to meet special engineering requirements.
Comparative Study of Codes for Seismic Design of Structures
Authors: Hampshire De C. Santos Sergio , Zanaica Luca , Bucur Carmen , De Souza Lima Silvio 
Published: April 2013

Abstract
This paper presents a comparative evaluation among some international, European and American, seismic design standards. The study considers the criteria for the analysis of conventional (residential and commercial) buildings. The study is focused on some critical topics: definition of the recurrence periods for establishing the seismic input; definition of the seismic zonation and shape of the design response spectra; consideration of local soil conditions; definition of the seismic force-resisting systems and respective response modification coefficients; definition of the allowable procedures for the seismic analysis. A model for a standard reinforced concrete building (“Model Building”) has been developed to permit the comparison among codes. This building has been modelled with two different computer programs, SAP2000 and SOFiSTiK and subjected to seismic input according to the several seismic codes. The obtained results compared are leading to some important conclusions.
Unconditional Security by the Laws of Classical Physics
Authors: Mingesz Robert , Bela Kish Laszlo , Gingl Zoltan , Granqvist Claes-Göran , Wen He , Peper Ferdinand , Eubanks Travis , Schmera Gabor 
Published: April 2013

Abstract
There is an ongoing debate about the fundamental security of existing quantum key exchange schemes. This debate indicates not only that there is a problem with security but also that the meanings of perfect, imperfect, conditional and unconditional (information theoretic) security in physically secure key exchange schemes are often misunderstood. It has been shown recently that the use of two pairs of resistors with enhanced Johnsonnoise and a Kirchhoff-loop ‒ i.e., a Kirchhoff-Law-Johnson-Noise (KLJN) protocol ‒ for secure key distribution leads to information theoretic security levels superior to those of today’s quantum key distribution. This issue is becoming particularly timely because of the recent full cracks of practical quantum communicators, as shown in numerous peer-reviewed publications. The KLJN system is briefly surveyed here with discussions about the essential questions such as (i) perfect and imperfect security characteristics of the key distribution, and (ii) how these two types of securities can be unconditional (or information theoretical).
State Estimation Based on Generalized Gaussian Distributions
Authors: Li Xifeng , Xie Yongle 
Published: April 2013

Abstract
This paper presents a novel strategy of particle filtering for state estimation based on Generalized Gaussian distributions (GGDs). The proposed strategy is implemented with the Gaussian particle pilter (GPF), which has been proved to be a powerful approach for state estimation of nonlinear systems with high accuracy and low computational cost. In our investigations, the distribution which gives the complete statistical characterization of the given data is obtained by exponent parameter estimation for GGDs, which has been solved by many methods. Based on GGDs, an extension of GPF is proposed and the simulation results show that the extension of GPF has higher estimation accuracy and nearly equal computational cost compared with the GPF which is based on Gaussian distribution assumption.
An Empirical Review On Supply Chain Integration
Authors: Maleki Meysam , Cruz-Machado Virgilio 
Published: April 2013

Abstract
The purpose of this research is to review a sample of literature in the area of supply chain integration. Considering the extensive amount of literature on supply chain integration, it appears that it is still in its infancy. This study reviews a sample of 152 articles and in doing so throw light on different aspects of supply chain integration namely: vertical integration, functional integration, integration models .It discusses and criticizes the current state of literature on this context so that future researches find directions to contribute to missing points and remove obstacles. The scope of this review is limited to a cross-section of the literature in this area. As such, it cannot, and does not, attempt to be an examination of the full range of the literature, but a sampling of important and influential works.
On the ship course-keeping control system design by using robust feedback linearization
Authors: Zwierzewicz Zenon 
Published: April 2013

Abstract
In the paper the problem of ship autopilot design based on feedback linearization method combined with the robust control approach, is considered. At first the nonlinear ship model (of Norrbin type) is linearized with the use of the simple system nonlinearity cancellation. Next, bearing in mind that exact values of the model parameters are not known, the ensuing inaccuracies are taken as disturbances acting on the system. Thereby is obtained a linear system with an extra term representing the uncertainty which can be treated by using robust, H∞ optimal control techniques. The performed simulations of ship course-changing process confirmed a high performance of the proposed controller despite the assumed significant errors of its parameters.
Possibilities for Motorways of the Sea development in the eastern part of the Adriatic Sea
Authors: Beškovnik Bojan 
Published: April 2013

AbstractThis article presents a wider perspective on possibilities of Motorways of the Sea development in the Adriatic Sea, with a special emphasis on the eastern coast of the Adriatic Sea. A complete overview of Motorways of the Sea development has been presented, and key elements influencing the development of Motorways of the Sea were analysed. It has been ascertained that there exist a lot of bottlenecks in the connection to the transport infrastructure in South East Europe. Superannuated port infrastructure, unsuitable inland connections, and nonexistent IT tools for electronic data exchange between all participators in the logistics chain hinder dynamic development of Motorways of the Sea. All these elements were thoroughly analysed, and a proposal for a macro transport strategy suitable for South East Europe has been exposed. It has been accentuated that there is a future for Motorways of the Sea introduction but all described bottlenecks have to be further analysed and removed in a short period of time, to stimulate private sector for financial investments.
The Design of Eman, an Experiment Manager
Authors: Bojar Ondřej , Tamchyna Aleš 
Published: April 2013

Abstract
We present eman, a tool for managing large numbers of computational experiments. Over
the years of our research in machine translation (MT), we have collected a couple of ideas for
efficient experimenting. We believe these ideas are generally applicable in (computational)
research of any field. We incorporated them into eman in order to make them available in a
command-line Unix environment.
The aim of this article is to highlight the core of the many ideas. We hope the text can serve
as a collection of experiment management tips and tricks for anyone, regardless their field of
study or computer platform they use. The specific examples we provide in eman’s current syntax
are less important but they allow us to use concrete terms. The article thus also fills the gap in
eman documentation by providing some high-level overview.
Minimally invasive CT guided treatment of intraspinal synovial cyst
Authors: Kozar Sergeja , Jeromel Miran 
Published: April 2013

Abstract
Background. Intraspinal synovial cysts of vertebral facet joints are uncommon cause of radicular pain as well as neurological deficits. They can be managed both conservatively and surgically.
Case report. A 77-year old polymorbid patient presented with bilateral low back pain which worsened during the course of time and did not respond to the conservative treatment. A diagnosis of intraspinal synovial cyst was made using the magnetic resonance imaging (MRI). Percutaneous computed tomography (CT) guided injection with installation of local anesthetic together with corticosteroid and rupture of the cyst was successfully used. A month after the procedure his pain improved, the usage of analgesics diminished and his over-all quality of life improved.
Conclusions. Percutaneous CT guided lumbar synovial cyst treatment is safe and reliable alternative to the surgical treatment in polymorbid patients with radiculopathy who are not able to tolerate general anesthesia and operation.
Histopathological Study of Cutaneous Lesions in Gout
Authors: Orzan Olguţa Anca , Simion George , Tudose Irina , Costache Mariana , Giurcăneanu Călin 
Published: April 2013

Abstract Aim: To document the spectrum of histological changes of cutaneous lesions found in patients with gout. Material and methods: Thirteen cutaneous biopsies were studied. The biopsies were fixed in formalin solution and stained with hematoxyline and eosin. Results: A common feature in all 13 cases was the presence of deposits of basophilic material with needle-like clefts. The main histological reaction pattern was palisading granuloma. In 7 cases the deposits were subcutaneously located and in 6 cases intradermal and subcutaneously. The inflammatory infiltrate contained mainly epithelioid histiocytes and multinucleate giant cells. In 5 cases it also contained neutrophils and in one case foam cells. Secondary changes were found in 6 cases. Conclusion: When the clinical findings are atypical, cutaneous biopsy remains an important tool to establish the diagnosis of tophi, even in those cases with no possibility to exam alcohol fixed specimens under polarized light. In our study the preliminary clinical diagnosis was consistent with the histological findings in only 3 cases. The key feature that allowed the correct diagnosis was the presence of basophilic material with needle-like clefts surrounded by a palisading histiocytic infiltrate.
Multifactorial Analysis of a Group of Prediabetes Patients in Terms of Cardiovascular Risk
Authors: Adamescu Eduard , Niculescu Cătălina , Dobjanschi Carmen 
Published: April 2013

Abstract Background and Aims: “Prediabetes” is defined by Impaired Fasting Glucose (IFG) or Impaired Glucose Tolerance (IGT), both states associated with increased risk for diabetes and high cardiovascular (CV) risk. The aim of our study was to investigate a population with prediabetes compared to a group from the general population in respect with the risk for progression to diabetes and CV risk parameters. Materials and Methods: We investigated 124 ambulatory patients with prediabetes and 98 persons without any known metabolic disorders (control group), for CV risk parameters and risk of developing diabetes. Results: We found statistically significant differences (p <0.05) for average weight, waist, BMI and lipids between the two groups. We also found a double risk score of developing diabetes in prediabetes patients compared to the control group. No significant differences were found in terms of anthropometric parameters, lipid values, cardiovascular disease and diabetes risk score for the IFG, IGT and IFG + IGT subgroups. Conclusions: People with prediabetes have features that differentiate them from the general population, both in terms of the history, anthropometric and biochemical characteristics. Increased risk for progression to diabetes, but also highly increased CV risk makes very useful the prevention efforts focused on this population group.
It’s Time for New Treatments in Pancreatic Cancer Pathology
Authors: Crişan Ramona , Aldea Mihaela , Kacso Gabriel 
Published: April 2013

Abstract Background and aims: The objective of this study was to conclude if there are enough scientific evidences to consider metformin as a potential treatment for pancreatic cancer. Material and Method: We performed a systematic search using PubMed and MedlinePlus up to September 2012. Reference list of relevant peer reviewed literature were hand searched. Ultimately 15 articles were included. Results: Epidemiological studies had revealed that therapy with metformin was associated with 21% reduced risk for all types of malignancies, 31% reduction in overall summary relative risk, the median survival was longer: 16.6 vs. 11.5 months and the risk of death has decreased with 33%. In vitro it was proven that low doses of metformin block the stimulation of DNA synthesis and the growth of human pancreatic cancer cells. Prospective randomized clinical trials to confirm these data were already launched. Conclusions: These results raise the possibility that metformin could improve the poor prognostic of patients suffering from pancreatic cancer. Other clinical trials should confirm this hypothesis.
Challenges in vitamin D analysis / Izazovi u analizi vitamina D
Authors: Serteser Mustafa , Coskun Abdurrahman , Inal Tamer C , Unsal Ibrahim 
Published: April 2013

Summary
Vitamin D is an important determinant for the regulation of calcium and phosphorus levels and mineralization of the bone. The most reliable indicator of vitamin D status is the measurement of plasma or serum 25OH-D concentration. Several studies reported discrepancies between the results of assays. These high variabilities in 25OH-D measurements are due to used assay technologies and lack of standardization against the reference materials. Different assays have been employed for the measurement of 25OHD levels: Competitive Protein Binding Assays, immunoassays, direct detection methods. Choosing an assay platform is important both for clinical laboratory professionals and researchers, and several factors affect this process. Recently, liquid chromatography and tandem mass spectrometry is an alternative method to traditional assays and provides higher specificity and sensitivity than many assays; therefore, it has been suggested as a candidate reference method for circulating 25OH-D3. Standardization of methods for the quantification of 25OH-D by using the human-based samples would reduce the inter-method variability. The best way for laboratories to demonstrate the accuracy of their results is by participating in the external quality assessment scheme. Standardization of the assays is also required to provide clinicians with the accurate tools to diagnose hypovitaminosis. In addition, assay-specific decision limits are needed to define appropriate thresholds of treatment.
The Revision of Historical and Current Distribution of Hordeum Geniculatum All. (Poaceae) In Slovakia
Authors: Daniel Dítě , Pavol Eliáš , Vít Grulich 
Published: April 2013

Abstract
Historical and current occurrence of halophytic-ruderal species Hordeum geniculatum was studied in Slovakia during 2003 - 2010. The species occurred only in the Podunajská nížina Lowland, where 16 sites were found in total including historical and recent locations. Recently, the number of sites decreased markedly and we confirmed only four localities. Due to the sharp decrease in the number of sites and proper habitats, Hordeumgeniculatum is re-evaluated as endangered (EN) plant of Slovak flora.
Nutritional Factors in Central Metabolic Regulation
Authors: Sīpols Alfrēds Jānis 
Published: April 2013

Abstract

The control of metabolism by direct negative feedback of macronutrients detected centrally has
been until recently an attractive, though unconfirmed, hypothesis in the homeostatic model of energy
regulation. Research advances in the last decade have greatly expanded our knowledge of
how circulating carbohydrates, lipids, and proteins, reflecting amounts of recently ingested macronutrients,
are detected in hypothalamic areas to not only regulate food intake, but also direct
metabolic processes responsible for energy balance and anabolic pathways. For example,
plasma glucose sensed centrally is a major regulator of hepatic glucose production, a process
most likely mediated by ATP-sensitive potassium channels. More surprising, circulating lipids detected
by hypothalamic structures also act as potent negative feedback regulators of glucose mobilization
in the liver, independent of their peripheral detection in the intestines. Finally, central
detection of circulating postprandial leucine levels has been shown to decrease abdominal fat
mass mobilization and thermogenesis. These findings are consistent with the hypothesis that recognition
of macronutrients directly by hypothalamic receptors plays a pivotal role in central regulation
of metabolic processes. Moreover, the elucidated mechanisms suggest promising potential
sites for pharmacological intervention in the treatment of obesity, already at epidemic proportions,
although our modern environment is clearly the major cause.
Diet And Breast Cancer: Experiences From The Malmö Diet Cancer Cohort
Authors: Wirfält Elisabet 
Published: April 2013

Abstract

The Malmö Diet Cancer (MDC) group is a population-based cohort (n = 28 098) among Malmö inhabitants,
aged 45-73 years at the time of baseline examinations in 1991-1996. Data collection
regarding socio-demography, anthropometry and lifestyle was extensive, and included nonfasting
blood samples. A high validity diet history was used to determine the usual diet. Information
regarding cancer morbidity and mortality from the Swedish Cancer Registry is assessed
yearly. Findings support the accepted hypotheses that a lifetime overexposure to sex hormones
(modern reproductive patterns) and obesity promote postmenopausal breast cancer. Also,
women with high intakes (compared to low intakes) of fibre, folic acid and fermented milk products
have lower risk of postmenopausal breast cancer. High intakes of alcohol and energyadjusted
fat are associated with increased risk. Also, high intakes of dried soup-sauce-powders
and of fried potatoes are associated with increased breast cancer risk. The MDC has two unique
assets: the high validity dietary data and the well maintained bio bank. Since a multitude and diverse
processes likely contribute to chronic disease the active use of biomarkers has become increasingly
important to nutrition epidemiology. Clear information about the diet-breast cancer link
is important to many women, because unlike reproductive factors diet is changeable throughout
the lifecycle.
Ethical-Values Pedagogical Model
Authors: Holland Charlotte , Mulcahy Carmel , Besong Frida , Judge Miriam 
Published: April 2013

Abstract
This paper presents a pedagogical model that emerged during the design of an online Masters programme developed with the support of funding from the Erasmus multilateral programme. The authors are experienced in both the development and implementation of online learning, particularly values-based learning approaches in higher education, and are deeply committed to building alternate theoretical models that stimulate thinking about values-based learning within an online context. This pedagogical model thus represents an alternative theoretical resource for thinking about the role of ethical-values in learning. Garrison, Anderson and Archer’s (2000) Community of Inquiry Framework has been re-conceptualised and a new pedagogical model, titled the “Ethical-values Pedagogical Model”, has emerged. This model posits that a positive ethical-values presence is critical to sustaining teaching, social and cognitive presences and thus the lynchpin for the enablement of appropriate and meaningful cognitive experiences. The ethical-values bases of learners and educators effectively filter the way in which the cognitive experience is created and the manner in which the individual learner makes sense and/or constructs meaning within the learning environment. As such, the ethical-values bases of participants impact significantly on the teaching, social and cognitive presences within the learning environment. The presence of ethical-values that foster authentic, democratic and transformative learning experiences for the individual learner, communities of learners and educators is critical to the success of this Ethical-values Pedagogical Model.
Diversity of soil mite communities (Acari) within habitats seasonally flooded by the Vistula River (Ostromecko, Poland)
Authors: Kaczmarek Sławomir , Marquardt Tomasz , Faleńczyk-Koziróg Katarzyna , Marcysiak Katarzyna 
Published: April 2013

Abstract
The research was carried out in three types of habitats located in the seasonally flooded area of the Vistula River within Wielka Kępa Ostromecka Reserve: Salicetum albo-fragilis, Fraxino-Alnetum and Populetum albae. In the soil of Salicetum albo-fragilis Veigaia nemorensis and Trichouropoda ovalis were abundant, while Fraxino-Alnetum was dominated by Rhodacarellus silesiacus, and Populetum albae was overwhelmed by Rhodacarellus silesiacus and Dinychus inermis. Only between the Mesostigmata communities populating Fraxino-Alnetum and Populetum albae there were no statistically significant differences recorded in the distribution of abundance. The most similar, from the qualitative, quantitative and qualitative-quantitative point of view were Mesostigmata communities inhabiting Fraxino- Alnetum and Populetum albae. The numerous occurrence of Rhodacarellus silesiacus population in the soil of Fraxino-Alnetum and Populetum albae is most probably the result of succession changes within those habitats, and the species itself can be seen as an indicator of those habitats undergoing the process of a riparian forest transforming into an oak-hornbeam forest vegetation type.