bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pre- and Postoperative MR Imaging of Craniopharyngiomas
Authors: Hald J. K. , Eldevik O. P. , Quint D. J. , Chandler W. F. , Kollevold T. 
Published: June 2015

Purpose: To compare the pre- and postoperative MR appearance of craniopharyngiomas with respect to lesion size, tumour morphology and identification of surrounding normal structures. Material and Methods: MR images obtained prior to and following craniopharyngioma resection were evaluated retrospectively in 10 patients. Tumour signal characteristics, size and extension with particular reference to the optic chiasm, the pituitary gland, the pituitary stalk and the third ventricle were evaluated. Results: Following surgery, tumour volume was reduced in all patients. In 6 patients there was further tumour volume reduction between the first and second postoperative images. Two of these patients received radiation therapy between the 2 postoperative studies, while 4 had no adjuvant treatment to the surgical intervention. There was improved visualization of the optic chiasm in 3, the pituitary stalk in one, and the third ventricle in 9 of the 10 patients. The pituitary gland was identified preoperatively only in one patient, postoperatively only in another, pre- and postoperatively in 5, and neither pre- nor postoperatively in 3 patients. In 3 patients MR imaging 0–7 days postoperatively identified tumour remnants not seen at the end of the surgical procedure. The signal intensities of solid and cystic tumour components were stable from pre- to the first postoperative MR images. Optic tract increased signal prior to surgery was gone 28 days postoperatively in one patient, but persisted on the left side for 197 days after surgery in another. Conclusion: Postoperative MR imaging of craniopharyngiomas demonstrated tumour volume reduction and tumour remnants not seen at surgery. Early postoperative MR imaging of craniopharyngiomas may overestimate the size of residual tumour. Improved visualization of peritumoral structures may be achieved.
Topological fixed point theory and applications to variational inequalities
Authors: Latif Abdul , Ben-El-Mechaiekh Hichem 
Published: June 2015

AbstractThis is the first part of a work on generalized variational inequalities and their applications in optimization. It proposes a general theoretical framework for the solvability of variational inequalities with possibly non-convex constraints and objectives. The framework consists of a generic constrained nonlinear inequality ($\exists\hat{u}\in\Psi(\hat {u})$
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, $\exists \hat{y}\in\Phi(\hat{u})$
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u
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, with $\varphi(\hat{u},\hat{y},\hat{u})\leq \varphi(\hat{u},\hat{y},v)$
φ
(

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y
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, $\forall v\in\Psi(\hat{u})$
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) derived from new topological fixed point theorems for set-valued maps in the absence of convexity. Simple homotopical and approximation methods are used to extend the Kakutani fixed point theorem to upper semicontinuous compact approachable set-valued maps defined on a large class of non-convex spaces having non-trivial Euler-Poincaré characteristic and modeled on locally finite polyhedra. The constrained nonlinear inequality provides an umbrella unifying and extending a number of known results and approaches in the theory of generalized variational inequalities. Various applications to optimization problems will be presented in the second part to this work to be published ulteriorly.
A note on label propagation for semi-supervised learning
Authors: Bodó Zalán , Csató Lehel 
Published: June 2015

Abstract
Semi-supervised learning has become an important and thoroughly studied subdomain of machine learning in the past few years, because gathering large unlabeled data is almost costless, and the costly human labeling process can be minimized by semi-supervision. Label propagation is a transductive semi-supervised learning method that operates on the—most of the time undirected—data graph. It was introduced in [8] and since many variants were proposed. However, the base algorithm has two variants: the first variant presented in [8] and its slightly modified version used afterwards, e.g. in [7]. This paper presents and compares the two algorithms—both theoretically and experimentally—and also tries to make a recommendation which variant to use.
Accuracy and precision assessment of a new blood glucose monitoring system
Authors: Ji Li-Nong , Guo Li-Xin , Liu Li-Bin 
Published: June 2015

AbstractBlood glucose self-monitoring by individuals with diabetes is essential in controlling blood glucose levels. The International Organization for Standardization (ISO) introduced new standards for blood glucose monitoring systems (BGMS) in 2013 (ISO 15197: 2013). The CONTOUR PLUSThis study evaluated the accuracy and precision of CONTOUR PLUS BGMS in quantitative glucose testing of capillary and venous whole blood samples obtained from 363 patients at three different hospitals.Results of fingertip and venous blood glucose measurements by the CONTOUR PLUS system were compared with laboratory reference values to determine accuracy. Accuracy was 98.1% (96.06%–99.22%) for fingertip blood tests and 98.1% (96.02%–99.21%) for venous blood tests. Precision was evaluated across a wide range of blood glucose values (5.1–17.2 mmol/L), testing three blood samples repeatedly 15 times with the CONTOUR PLUS blood glucose meter using test strips from three lots. All within-lot results met ISO criteria (i.e., SD<0.42 mmol/L for blood glucose concentration <5.55 mmol/L; CV<7.5% for blood glucose concentration ≥5.55 mmol/L). Between-lot variations were 1.5% for low blood glucose concentration, 2.4% for normal and 3.4% for high.Accuracy of both fingertip and venous blood glucose measurements by the CONTOUR PLUS system was >95%, confirming that the system meets ISO 15197: 2013 requirements.
The equivariant Tamagawa number conjecture and the extended abelian Stark conjecture
Authors: Vallières Daniel 
Published: June 2015

Abstract
The goal of this paper is to show that the equivariant Tamagawa number conjecture implies the extended abelian Stark conjecture contained in [12] and [11]. In particular, this gives the first proof of the extended abelian Stark conjecture for the base field

ℚ

{\mathbb{Q}}

, since the equivariant Tamagawa number conjecture away from 2 was proved in this context by Burns and Greither in [8] and Flach completed their results at 2 in [13] and [14].
Exosomes: potential model for complement-stealth delivery systems
Authors: Milosevits Gergely , Szebeni János , Krol Silke 
Published: June 2015

AbstractExosomes are nature’s nanocarriers that transport biological information in humans. Their structural properties, origin and functions are making them interesting objects for the diagnosis of diseases, such as cancer, and also, as innovative tools for drug delivery. The interaction of exosomes with the immune system has been one of the focal points of interest; nevertheless their “stealth” properties helping to avoid adverse immune reactions are still not fully understood. In this review, after giving an overview of recent findings on the role of exosomes in disease pathogenesis and physiological functions, we focused on their interaction with the immune system and possibilities for clinical applications. The potential of exosomes of creating stealth nanoparticles that are better tolerated by the immune system than the presently available synthetic drug delivery systems represent a promising new approach in nanomedicine.
A regional survey of the relationship between vowel and consonant duration in Shetland Scots
Authors: Sundkvist Peter , Gao Man 
Published: June 2015

AbstractThe local dialect spoken in the Shetland Isles constitutes a form of Lowland Scots. It has been suggested that stressed syllables in Shetland Scots tend to contain either a long vowel followed by a short consonant (V:C) or a short vowel followed by a long consonant (VC:), and furthermore that this pattern constitutes a trace of complementary quantity in Norn, a Nordic language spoken in Shetland approximately until the end of the eighteenth century. The existence of such a pattern has also been supported by acoustic measurements. Following a summary and overview of Norn’s demise in the Shetland Isles, this paper presents a regional survey of the relationship between vowel and consonant duration in stressed syllables in Shetland Scots. Based on acoustic data from 43 speakers, representing ten separate regions across the Shetland Isles, the inverse correlation between vowel and consonant duration is assessed. The results reveal that the inverse correlation is strongest in the northern part of Shetland and weakest in the south, and displays a general north-to-south decline across Shetland. The results are thus generally consistent with predictions that follow from regional variation concerning Norn’s death; evidence suggests that it survived the longest in the northern parts of Shetland.
Climate-Ready Seeds and Patent Rights: A Question of Climate (in) Justice?
Authors: Saab Anne 
Published: June 2015

AbstractThis paper seeks to examine the concept of climate justice and how it is employed by different actors and for different ends. This will be done through an exploration of invocations of climate justice in discussions about a proposed adaptation strategy, namely ‘climate-ready seeds’. The impacts of climate change are often perceived as a form of injustice, because the most vulnerable regions and people suffer disproportionately while having contributed least to causing climate change. Adaptation strategies intended to alleviate this suffering can be viewed as a pursuit of climate justice. At the same time, some argue that certain adaptation strategies cause more injustice than they alleviate. Climate justice movements thus also aim to correct the injustices caused by adaptation strategies. Critics of climate-ready seeds contend that this proposed adaptation strategy is a profitable business for seed corporations, but does not benefit poor farmers. Even though different actors use the concept of climate justice for different purposes, they often invoke similar notions of ‘rights’. I argue in this paper that reliance on rights in all accounts of climate justice in discourses about climate-ready seeds plays a hand in obscuring the distinct aims and ends contained in the idea of climate justice.
Multi-Elemental Inductively Coupled Plasma-Optical Emission Spectroscopic Calibration Problems of the Sequential Extraction Procedure for the Fractionation of the Heavy Metal Content from Aquatic Sediments
Authors: Heltai György , Fekete Ilona , Halász Gábor , Kovács Katalin , Horváth Márk , Takács Anita , Boros Norbert , Győri Zoltán 
Published: June 2015

Abstract
For the characterisation of the environmental mobility of heavy metal contamination in aquatic sediments, the EU Bureau of Reference has proposed a fractionation by sequential extraction procedure. For its validation, the CRM-701 sample is available containing Cd, Cr, Cu, Ni, Pb, and Zn. In this paper, the matrix-matched calibration problems are presented. A multi-elemental inductively coupled plasma-optical emission technique is employed for the detection of heavy metals in the extracts. It was established that the sensitivities are strongly influenced by the extractants, which causes significant matrix effects: the sensitivities are strongly influenced by the solvents applied in extraction steps; the summarised recoveries show an acceptable agreement with the certified values; however, in the individual extraction steps for certain elements significant differences may occur due to the neglected interferences. Therefore, further optimisation is required utilising the flexible line selection possibility offered by the HORIBA Jobin Yvon ACTIVA-M instrument.
Nitrogen Removal Controlled by an Ammonium-Analyser at the north Pest Wastewater Treatment Plant
Authors: Kassai Zsófia 
Published: June 2015

Abstract
At the North Pest Wastewater Treatment Plant, a nutrient removal process has been in operation since 2011. New tanks have been built, which can receive approximately half of the pre-settled wastewater. A predenitrification system has been planned and built both to the old and new lines. Due to the relatively small anoxic zones, periodic aeration was initiated first in the new line to achieve the lowest possible effluent total nitrogen concentration. Because of its positive impact, the operation of periodic aeration was initiated in the old line as well. Ammonium-analysers are used to control the aeration periods. Due to this process, the plant can provide a very low total nitrogen effluent value (below 10 mg dm-3 on average) as well as save energy and operational costs.
User Interaction with Context-aware Recommender Systems on Smartphones
Authors: Wörndl Wolfgang , Lamche Béatrice 
Published: June 2015

Summary
In this article we give an overview on selected aspects of user interaction with context-aware recommender systems on smartphones. We discuss these according to the three steps of user interaction with recommender systems using subjective and objective evaluation criteria: 1. Preference elicitation: how input methods on mobile devices can influence the users’ rating behavior, 2. Result delivery and presentation: how results can be adapted to the mobile context, 3. Feedback, critiquing and refinement: how interactive explanation can improve the user experience. The selection of examples is based on several studies we did in different mobile scenarios.
No Success without Purpose
Authors: Gumm Dorina 
Published: June 2015

Abstract
The purpose an organisation attaches to its intranet should be the starting point for justifying an intranet project, defining use cases and ultimately being able to measure its success. An intranet's prospects for success are best when it is perceived as a tool for operations management. This is one of the core findings of the “KlinikNet 2.0” project chosen by hospital directors as one of five “IT Key Topics” in 2014.
Blessing or Curse: “Everybody Knows how to Write” – How Can Good Editorial Work Be Accomplished on an Intranet?
Authors: Häfel Heike 
Published: June 2015

Abstract
In many companies, employees and managers alike are critical about the quality of their intranet. Solutions focusing on technical and process improvements frequently fail to produce sustainable results because they ignore one key factor for the quality of written content: Amid the day-to-day business routine there are too many obstacles for doing good editorial work and acquiring writing skills. To encourage the production of quality texts, an environment must be created that encourages writing, a culture where editorial work is firmly established, trained and performed efficiently.
Social Collaboration: Overcoming Inhibitions with Communication
Authors: Chaudhuri Oliver 
Published: June 2015

Abstract
Employee empowerment is at least as important as a high level of usability for the acceptance and successful implementation of a new Intranet or social collaboration platforms – especially in view of the media skepticism in middle management and among middle-aged executives. Strategic communication is the key to driving cultural change in companies and successfully introducing new forms of collaboration.
Developing Intranet Strategy: An Interdisciplinary Building Block Model
Authors: Riemke-Gurzki Thorsten 
Published: June 2015

Abstract
Intranets became the central platform for internal corporate communication, business processes and information technology in the last decade. This huge application scope leads to severe project traps: How can a corporate-wide, interdisciplinary intranet strategy be developed, established and maintained? This article shows the challenges and potential problems for the development of an intranet strategy. It introduces a building block model for intranet strategy. The model includes strategic dimensions as well as cultural aspects and project scope.
Environmental And Economic Aspects Of Anticorrosion Protection By Hot-Dip Galvanized Method Rebars In Concrete
Authors: Hegyi Andreea , Păstrav M. , Rus M. 
Published: June 2015

Abstract
The implementation of the sustainable development concept is nowadays a key issue in almost all human activities. For the constructions domain an European strategy has already been elaborated. Among its goals are also the use of long lasting materials and the reduction of repair costs. This paper presents an interdisciplinary study concerning the efficiency of the use of hot-dip galvanized rebar for concrete structures. Experimental results about corrosion kinetics of coated and usual steel reinforcement embedded in concrete, subjected to chlorine ions attack, are analyzed. Electrochemical methods as chronoamperometry and linear polarization have been used. Corrosion potential values recorded for galvanized steel embedded in concrete indicate an uncertain corrosion activation process up to a rate of 2.5 % calcium chloride relative to concrete. For rates of 5% CaCl2 and more the corrosion process is activated. For unprotected steel bars embedded in concrete the corrosion activation process started at all calcium chloride studied rates and higher corrosion potential values has been registered than for the hot-dip galvanized ones, at the same rates. Economical assessments have been done using entire lifetime cost analysis of the reinforced concrete structures. Despite that the hot-dip galvanization is a rather expansive procedure, when taking into account the whole expected life span, the use of zinc coating proves to be efficient both from structural and financial approaches.
Approximation Of Scours Using Terrestrial 3D Laser Scanning
Authors: Jocea Andreea Florina , Crăciun E. G. , Anton A. 
Published: June 2015

Abstract
In designing artwork as bridges, hydraulic calculations have a very important role due to the fact that they are behind their sizing. Bridge designer must therefore possess knowledge of hydrology, hydraulics of bridges and river banks regularization. A problem that arises during the design stage of bridges is the scour phenomenon surrounding bridge pier. Over time, there have been conducted a number of studies which led to the provision of a plurality of mathematical models that are intended scour prediction. In the present article we will present an experimental study to determine the bed profile and measurement of scours products around a pier bridge using 3D terrestrial laser scanner.
Building Design Influence On The Energy Performance
Authors: Moga Ligia , Moga I. 
Published: June 2015

Abstract
Energy efficient design is a high priority in the national energy strategy of European countries considering the latest requirements of the European Directive on the Energy Performance of Buildings. The residential sector is responsible for a significant quantity of energy consumptions from the total amount of consumptions on a worldwide level. In residential building most of the energy consumptions are given mainly by heating, domestic hot water and lighting. Retrofitting the existing building stock offers great opportunities for reducing global energy consumptions and greenhouse gas emissions. The first part of the paper will address the need of thermal and energy retrofit of existing buildings. The second part will provide an overview on how various variables can influence the energy performance of a building that is placed in all four climatic zones from Romania. The paper is useful for specialist and designers from the construction field in understanding that buildings behave differently from the energy point of view in different climatic regions, even if the building characteristic remain the same.
An ethnopharmacological approach to the preliminary screening of native Australian herbal medicines for anticancer activity
Authors: Tan Aaron C. , Konczak Izabela , Li George , Roufogalis Basil D. , Sekhon Bhagwant , Sze Daniel M.-Y. 
Published: June 2015

Abstract: Five plants used traditionally by Australian Aboriginals and two edible native Australian fruits have been investigated for anticancer activity. The aim was to identify native Australian herbal medicines which displayed anticancer activity, with cytotoxicity to cancer cells but sparing or even proliferating normal immunological cells, and subsequently provide potentially new anticancer drug leads.: Extracts and derived fractions were assayed for cell viability against a multiple myeloma cell line, RPMI-8226, in comparison to the peripheral blood mononuclear cells (PBMC) representing normal human immunological cells.: None of the crude extracts exhibited the desirable differential activity; however, following further fractionation of the: One fraction may potentially contain valuable compounds which may be useful for further investigation. This may focus on the identification of the bioavailable purified compounds present within these fractions or by detailed delineation of the related mechanisms of action.
Slow Television
Authors: Puijk Roel 
Published: June 2015

Abstract
Public-service broadcasters are compelled to seek innovative ways to fulfil their publicservice functions in an increasingly competitive environment. The Norwegian Broadcasting Corporation (NRK) has been experimenting with new programme formats and cross-media concepts. The concept of slow television was developed by the regional office in Bergen. On July 16, 2011, they started a five-day live broadcast from one of the cruise ships that sailed up the Norwegian coast from Bergen in southern Norway to Kirkenes near the Russian border. The broadcast was a huge success. I take this programme as a case study and provide an analysis from the perspective of innovation within public-service broadcasting. The article addresses the following questions: 1) In what way was the programme innovative? 2) How was the programme accepted and produced? 3) What accounts for the success of the broadcast in terms of number of viewers and popular engagement?
Synthesis of carrageenan/multi-walled carbon nanotube hybrid hydrogel nanocomposite for adsorption of crystal violet from aqueous solution
Authors: Hosseinzadeh Hossein 
Published: June 2015

Abstract
A novel polysaccharide-based hydrogel nanocomposite was prepared using grafting of acrylic acid (AA) on to kappa-carrageenan (κC) by incorporating multi-walled carbon nanotube (MCNT). In fact, MCNTs were used as nano-sized reinforcements in the synthesized nanocomposite. Spectroscopy together with morphology proved relatively strong κC-MCNT interaction. Besides, the swelling behavior of the nanocomposite hydrogel was studied. The results showed that in the presence of MCNTs, the equilibrium swelling capacity was decreased. This can be attributed to cross-linking role and hydrophilicity nature of MCNTs. The adsorption performance of hydrogel nanocomposite was also investigated for the removal of crystal violet (CV) as a cationic dye. The effects of some important parameters such as MCNT concentration, pH and contact time on the uptake of CV solution were studied. Equilibrium adsorption isotherm data of the hydrogel exhibited better fit to the Langmuir than to the Freundlich isotherm model. According to this model, the maximum adsorption capacity of κC-based hydrogel nanocomposite was found to be 118 mg . g-1.