bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Rare Cause of Personality Change in Emergency Department: Glioblastoma Multiforme
Authors: Uysal Emin , Acar Yahya Ayhan , Solak Süleyman 
Published: February 2018

ABSTRACT A
24-year-old male was admitted to emergency department with personality changes
and long-lasting headache. Neurologic examination did not show any
abnormalities. In cranial computed tomography scan brain mass was detected in
frontal cortex bilaterally. Patient was hospitalized in Neurosurgery clinic with
a diagnosis of intracranial tumor. Elective tumor resection was performed and
his topathologic examination was reported as glioblastoma multiforme. In
follow-up, no personality changes were observed. Patients with personality
changes should be examined carefully,
besides possible frequent underlying pathologies, intracranial tumors must be
considered in differential diagnosis. Long lasting headaches may be a clue for
emergency physicians.
Etiological differences in dialysis patients, And addiction level and social tendencies of patients pursuant to smoking
Authors: ÇETİN Adil , ÖZDEMİR Merve Betül , ARSLAN İsmail , TEKİN Oğuz , DURANAY Murat 
Published: February 2018

Aim: Within this study, we aim to
research whether there is a relation between smoking addiction of dialysis
patients and their social tendencies. Method: 106 patients, who were being
treated in Ankara Training and Research Hospital Nephrology Clinic, were
included in the study. Cases included in the study were evaluated in terms of
age, gender, educational background, settlement, Financial situation, smoking
habits and social tendencies. Results: It is seen that gender, income
level, Social tendency and drug avoidance scores of Fatih Social Tendencies
Scales are efficient over smoking addiction.Conclusion: In our study, we have put forward smoking condition
and its risks for dialysis patients.
Introduction
Authors: Pontrandolfo Stefania , Solimene Marco 
Published: February 2018

Abstract
Identity categorisations are socio-cultural constructs embedded in discourses of power that locate diversity within a hierarchic frame. This is especially true when identity discourses entail a relation to the nation-state. In Italy, as in most of Europe, media, political and institutional discourses depict 'Gypsies/Roma' as dangerous 'Nomads' and strangers-at-home. As a result, despite various attempts to tackle anti-Gypsyism, Roma and Sinti communities living in Italy are still subject to ethnicisation, racialisation and criminalisation processes as well as spatial segregation, social exclusion and marginalisation. This special issue addresses a critical discussion on the transformation, manipulation and strategic uses of 'Gypsy', 'Roma' and 'Nomad' categories in Italy over the last fifty years. The aim is to offer an in-depth reflection on categorisation processes, the ways in which categorisations are used in different contexts and by different social agents, and their practical effects on Roma and Sinti communities.
Reflections on the Use of Classifications in the Juridical Method: The Case of Roma Groups in Italy
Authors: Decarli Giorgia 
Published: February 2018

Abstract
The juridical method rejects a polythetic logic, favouring a monothetic procedure of classification according to which precise and necessary traits are shared by all the elements that make up a category. Such an approach, however, is ill suited for dealing with objects of analysis that escape easy reductions, and it fails to grasp the subtleties of reality. The categories applied to Roma groups are emblematic in this regard. The paper examines the classificatory vocation characterising the Italian juridical approach to Roma, exploring its repercussions on their life and fostering collaboration between jurists and anthropologists for the development of efficient juridical tools.
Roma 'Acts of Citizenship': Negotiating Categories and Housing Solutions
Authors: Pontrandolfo Stefania 
Published: February 2018

Abstract
This article presents the case study of a community-based Roma struggle to challenge categorisations, improve housing conditions and access citizenship rights. It is an ethnographic account of the citizenship enactments that a Roma family network, which migrated from Romania to Italy, has been pursuing since its arrival in the southern Italian town of Bari. The aim is to promote the value of ethnographic research in understanding the numerous, complex ways in which 'being political' among Roma is possible. This can take place not only through elite Roma activism, or by communities of Roma producing 'hidden transcripts', but also through community-based 'acts of citizenship'.
Romani Nomadism: From Hetero-Images to Self-Representations
Authors: Toninato Paola 
Published: February 2018

Abstract
The article analyses an alternative approach to Romani nomadism within the emerging field of Romani literature by comparing hetero-images of Romani nomadism with the Roma's own accounts of mobility. It starts by discussing romantic literary images of nomadic 'Gypsies' and entrenched fictional views of Romani nomadism, and contrasts these with self-representations of Romani authors. It focuses on the counter-hegemonic relationship between hetero-representations and self-representations of nomadism, arguing that Romani self-images are able to grasp the complex reality of Romani nomadism and understand the dual nature of Romani mobility, as both a survival mechanism and a socio-economic strategy.
Correlation between antifungal consumption and distribution of Candida spp. in different departments of a Lebanese hospital
Authors: Awad Lyn , Tamim Hani , Ibrahim Ahmad , Abdallah Dania , Salameh Mohammad , Mugharbil Anas , Jisr Tamima , Droubi Nabila , Zahran Kamal , Moghnieh Rima 
Published: February 2018

Introduction: Recently there has been a significant increase in the incidence of fungal infections attributed to Candida species worldwide, with a major shift toward non-albicans Candida (NAC). Herein, we described the distribution of Candida species among different departments in a Lebanese hospital and calculated the antifungal consumption in this facility. We, then, correlated the consumption of antifungals and the prevalence of Candida species.
Methodology: This was a retrospective study of Candida isolates recovered from the hospital microbiology laboratory database between 2010 and 2015. Data on antifungal consumption between 2008 and 2015 were extracted from the hospital pharmacy database. Spearman's coefficient was employed to find a correlation between Candida species distribution and antifungal consumption.
Results: The highest antifungal consumption was seen in the haematology/oncology department (days of therapy/1000 patient days = 348.12 ± 85.41), and the lowest in the obstetrics department (1.36 ± 0.47). The difference in antifungal consumption among various departments was statistically significant (p < 0.0001). Azoles were the most common first-line antifungals. A non-homologous distribution of albicans vs. non-albicans was noted among different departments (p = 0.02). The most commonly isolated NAC was Candida glabrata, representing 14% of total isolates and 59% of NAC. The total antifungal consumption correlated positively with the emergence of NAC. The use of azoles correlated positively with Candida glabrata, while amphotericin B formulations correlated negatively with it. None of these correlations reached statistical significance.
Conclusion: Different Candida species were unequally distributed among different hospital departments, and this correlated with consumption of antifungals in respective departments, highlighting the need for antifungal stewardship.
<b>Dívida pública e financiamento da educação superior no Brasil
Authors: Chaves Vera Lúcia Jacob , Reis Luiz Fernando , Guimarães André Rodrigues 
Published: February 2018

Objetivo deste artigo é apresentar os resultados da pesquisa realizada com a finalidade de analisar as implicações das políticas de ajuste fiscal no financiamento da educação superior brasileira, considerando o atendimento ao setor privado-mercantil, o orçamento destinado às universidades públicas federais e o pagamento da dívida pública, no período 2003-2016. Os dados financeiros foram extraídos do Tesouro Nacional, do Tribunal de Contas da União, do Senado Federal. Também se utilizaram documentos da KPMG Corporate Finance, da CM Consultoria, da Hoper Consultoria, da Associação Brasileira de Private Equity e Venture Capital (ABVCAP) e da Bolsa de Valores de São Paulo. Os resultados indicam que, mesmo diante da ampliação dos recursos destinados às universidades públicas federais, os valores são consideravelmente inferiores aos destinados à dívida pública. Também fica evidente que a expansão e a lucratividade do setor privado-mercantil são incentivadas pelas políticas do governo federal por meio do Programa Universidade para Todos (Prouni) e do Fundo de Financiamento Estudantil (Fies). Conclui-se, diante do congelamento dos gastos sociais federais nos próximos 20 anos, com a Emenda Constitucional n. 95/2016, aprofundando a política de ajuste fiscal, que as universidades públicas federais sofrerão consequências negativas para a sua manutenção, bem como será fortalecido o setor privado-mercantil.
CHARACTERIZATION AND ANTIMICROBIAL SUSCEPTIBILITY PROFILE OF SEPTICAEMIA-CAUSING PATHOGENS ISOLATED FROM FEBRILE CHILDREN WITH SICKLE CELL DISEASE IN KANO, NIGERIA.
Authors: Yusuf Ibrahim 
Published: February 2018

Background and Objectives: Bacterial infection in sickle cell anaemic patients is a major cause of mortality and require proper treatment with appropriate antibiotics. However, continue defiant of these infections causing pathogens to many antibiotics and inadequate screening methods in overburden health care facilities such as our in Kano, Nigeria necessitates the conduct of this study. A research was therefore conducted on the characterizations and antimicrobial susceptibility of septicaemia-causing pathogens isolated from febrile children with sickle cell disease in Kano, Nigeria.Method: A total of 225 venous blood samples from suspected sickle cell anaemicchildren attending three selected hospitals within Kano metropolis were collected and screened for sickle cell disease, followed by blood culture using automated blood culture system (BD BACTEC) respectively. The bacteria isolated from confirmed SCD patients were characterized using microscopic, biochemical and serological techniques. Results: Results showed that of the 225 specimens collected,68 (30.22%) were SCD positive, with the highest percentage (16%) among subjects within 1-2 years of age. A total of 11 genera of bacteria were isolated from the SCD confirmed bloods, with Salmonella typhi having highest occurring rate 27 (39.71%), followed by Streptococcus pneumoniae10 (14.71%), Salmonella Group B 9(13.24%), Staphylococcus aureus 4 (5.88%),and Escherichia coli 3 (4.41%).Majority of the isolates 59 (86.76%) were highly susceptible to ciprofloxacin followed by cefuroxime 45 (66.18%), gentamicin 38 (55.88%), ceftriaxone 30 (44.12%), augmentin 39 (57.35%), ampicillin 25 (36.77%) and co-trimoxazole (22.06%). Conclusion: Septicaemia in SCD confirmed children in the three hospitals are caused by a combination of 11 genera of bacteria. Resistance to commonly used antibiotics are on increase, but treatment with ciprofloxacin is still promising.
Space charge accumulation in XLPE versus temperature and water content
Authors: Andersen Ve Torbjørn , Mauseth Frank , Ildstad Erling 
Published: February 2018

The rate of accumulation and amount of space charge is dependent on several factors, including the electrical properties of the insulation material and the temperature of the insulation. Increased water content has been found to increase the conductivity of XLPE up to three times compared to that of dry XLPE, and is therefore also expected to affect space charge accumulation.This paper presents results of space charge measurements on dry and wet 0.3 mm thick XLPE insulation at 20, 40 and 60 °C. The applied voltage was 10 kV, and the measurement period 14 days. Results show that increased water content leads to the formation of heterocharge at the cathode at 20 °C, as opposed to homocharge in case of a dry sample. At higher temperatures, increased water content mainly decreased the magnitude of accumulated charge.A conductivity-based sectioned model was introduced, and was used to recreate the changes in electric field set up by the accumulated space charge. Comparing the model with the measurements showed that conductivitybased charging was a central mechanism in space charge build-up. At higher temperatures, additional effects not covered by the model were present.
The Effect of DC Electro-thermal Ageing on Electrical Treeing in Polyethylene
Authors: Mantsch Adrian , Chen Xiangrong , Blennow Jörgen , Gubanski Stanislaw 
Published: February 2018

Electrical treeing is among the main mechanisms responsible for electric breakdown in polymeric high voltage cables. In this paper, electrical treeing in electro-thermally aged low density polyethylene (LDPE) was evaluated by means of a real-time microscopic detection system. A wire – plane electrode test object with semiconducting tab was used in the study. The ageing was performed at a constant temperature of 80°C and an applied DC voltage of 10 kV of both polarities and lasted from 100 up to 800 hours. For testing the resistances to electrical treeing, tests were performed by applying 50 Hz AC voltage at a ramping speed of 0.5 kV/s. The obtained experimental results showed that mainly the thermal component of the ageing had an influence on electrical treeing parameters, namely on the initiation voltage as well as the shape and occurrence frequency of the trees. With an increase of the ageing time, the tree inception voltage gradually decreased.
Thermal Ageing of XLPE Cable Insulation under Operational Temperatures – Does It Exist?
Authors: Olsen Rasmus , Holboell Joachim , Henriksen Mogens , Hagen Jens Z. 
Published: February 2018

Thermal ageing of power cables may cause premature breakdown if the cables are operated at elevated temperatures, a relation usually described by Arrhenius’ law. The purpose of the present study is to investigate if any significant ageing takes place under normal operational temperatures. The investigation shows that thermal degradation at these comparably low temperatures is hardly reported and seems not to be of practical concern to transmission system operators. This may be the result of a conservative mind-set during the dimensioning of power systems, here in the case of power cables, which means that the lines are generally lightly loaded. Based on the literature found or, to be more precise, on the literature not found it seems to be very difficult to determine that thermal ageing should be problematic for operational power cables at all, in particular as compared to laboratory investigations at very high temperatures, where thermal ageing clearly takes place. To this conclusion contributes the fact that failure statistics do not correlate failures with severity of loading, and that the laboratory studies (which mosly conclude thermal ageing to be problematic) exposes the materials to unrealistic conditions.
Influence of antioxidants in epoxy-anhydride resin used for HV applications
Authors: Ho Chau Hon , Logakis Emmanuel , Krivda Andrej 
Published: February 2018

In this work, various antioxidants with different chemical structures and functionalities were investigated in respect to their influence in the processibility and properties of a standard epoxyanhydride resin formulation used in HV applications. Such antioxidants are mainly used in thermoplastic materials as they are known for their long- and shortterm stabilizing effect against thermal and thermooxidative degradation. They are also used as UV stabilizers against decomposition and discoloration of the polymer and as metal deactivators by catching and eliminating metal ions. Recently, the use of such antioxidants as voltage stabilizers in cross-linked polyethylene has been reported showing a significant increase in breakdown voltage.Our investigations show that the processing requires additional mixing steps in order to completely dissolve antioxidants in the epoxy formulation. While little amounts of antioxidants or voltage stabilizers have a large influence in thermoplastics regarding thermal stability and electrical properties, the studied antioxidants in a concentration range of 1-5 weight-% show surprisingly only little impact in breakdown voltage as well as in dielectric properties and also in degradation behavior as detected by thermo-gravimetric analyses. Only the glass transition temperature of the cured epoxy resin is decreased in a few cases where the antioxidants have a plasticizing effect.
On-line condition monitoring importance and evolution
Authors: Fantana N.L. 
Published: February 2018

In recent years there has been an increase in the availability of on-line condition monitoring devices and systems and of monitoring installations in utility networks. Their installation is judged considering a lot of factors including: general utility strategy, expected value from such an installation, asset and risk management, utility best practices, economic, environmental or regulatory pressures, and will vary from one utility to another. What is the present experience, the value from on-line condition monitoring and what are the opportunities and challenges in future grids and considering modern technologies? The paper intends also to position on-line condition monitoring in life strategies and point to evolution and international activities related to the topic.
Study of the Dielectric Response of Ester Impregnated Cellulose for Moisture Content Evaluation
Authors: Graczkowski A , Gielniak J , Przybyłek P , Walczak K , Morańda H 
Published: February 2018

Knowledge about moisture content in impregnated cellulose insulation is essential for power transformers when estimating remaining lifetime, planning operating conditions and drying procedure. Frequency dielectric spectroscopy (FDS) is non-destructive, convenient method to asses moisture content of insulation. It is important to study dielectric response of ester-cellulose insulation due to growing number of transformers using synthetic ester MIDEL 7131 as insulation fluid [1, 2]. The paper presents study of dielectric response of synthetic ester-pressboard samples with various moisture content (from dry to 5%) measured in wide temperature range (from 5 ˚C to 50 ˚C). Measurement results for pressboard impregnated with synthetic ester are compared to data of pressboard impregnated with mineral oil. The aim of presented work is to provide patterns of dielectric response of synthetic esterpressboard for accurate moisture content evaluation.
Oil Aging due to Partial Discharge Activity
Authors: Ghaffarian Niasar M , Edin H , Clemence Kizza R 
Published: February 2018

Oil is the main insulation in power transformers and over long time of ageing its insulation properties can change. In this paper ageing of oil due to the exposure to electric discharges was investigated. The effect of high energy discharges (complete arc) and low energy discharges (partial discharges) on oil properties such as breakdown strength and oil conductivity was investigated.An experimental setup consisting of two spherical electrodes was designed. The adjustable distance between the two electrodes made it possible to have PD with different magnitude.The oil conductivity and breakdown strength was measured for three sets of experiments. The first group of experiments was performed on new oil in order to have a reference for comparison. In the second group of experiments the new oil samples was exposed to 1000 and 3000 lightning impulses. In the third group of experiments new oil samples was exposed to partial discharge for different duration of time. Oil conductivity and breakdown strength of these aged samples were compared with new oil. The results show that after exposure to lightning impulse oil conductivity increases and breakdown strength decreases, However PD activity for short time does not change the oil conductivity but it reduces the breakdown strength.
Mechanical Simulations Regarding the Influence of Paper Insulation Degradation on the Radial Mechanical Strength of Continuously Transposed Conductors for Power Transformers
Authors: Geißler D , Liebfried T 
Published: February 2018

The short circuit withstand capability of power transformers describes the ability of the windings to withstand electromagnetic forces resulting from current density in the conductors and magnetic stray fields. Especially operationally aged transformers often have a reduced short circuit strength what can lead to irreversible deformation of windings if high fault currents occur. Short circuit strength is to some degree dependent on the mechanical strength of the conductors. Mainly the cellulosic insulation materials experience degradation during operation time due to high temperatures and moisture. Hence a reduction in short circuit strength can be correlated to some degree with the aging of the cellulose. In this paper the influence of paper insulation around Continuously Transposed Conductors (CTC) on their mechanical strength will be analyzed by a simplified analytical model as well as by a FEA based mechanical simulation model.
Comparison of Test Setups for High Field Conductivity of HVDC Insulation Materials
Authors: Andersson Johan , Englund Villgot , Hagstrand Per-Ola , Friberg Andreas , Olsson Carl-Olof 
Published: February 2018

Electrical conductivity is considered to be a key property for HVDC insulation. For cable insulation the conductivity level has to be sufficiently low in order to avoid a large leakage current that could cause heat generation in the insulation and contribute to additional transmission losses. The distribution of conductivity in the radial direction of the cable insulation dictates the distribution of electric field and space charge at steady state. It is therefore of interest to know the conductivity characteristics of insulation materials intended for HVDC cables.This paper presents a test method and procedure for evaluating the high field electrical conductivity of HVDC insulating materials and crosslinked polyethylene in particular. The results presented in this paper are generated from two nearly identical measurement setups using the same sample geometry, but installed in two different test facilities (ABB and Borealis). The results reveal that differences in conductivity can be seen; even between test setups with only minor differences and that the influence of sample preparation is crucial to obtain reproducibility. However, the decay of the measured current was observed to be relatively different between the measurement set-ups.
Mechanical Stress Distribution inside Dry Capacitor Elements
Authors: Petersson Linnea , Wei Kun , Paulsson Göran , Strömsten David , Ekh Johan 
Published: February 2018

Many power products are produced by winding paper, polymer film or metal foils around an electrically active or passive core, like cables, bushings and capacitor elements. The mechanical stress distribution inside the product has high impact on its final performance. The stress distribution will be determined by the selected materials, winding parameters, and the ambient temperature. In this work the stress distribution inside dry metallized film capacitor elements for HV applications has been investigated using multiple experimental methods: Parotester, Smith needle, Pressure sensors and X-ray computed tomography. The results showed that the tested methods were unable to provide exact values of the radial stress distribution inside the capacitor element. As a continuation, the nonlinear material properties of the biaxially oriented polypropylene capacitor film were characterized. This work indicated that the temperature and the initial film stress will have an effect on the resulting tightness of the capacitor element.