bluuebunny/crossref_metadata_2025 huggingface dataset:
Is Ménière’s disease the ‘inner ear migraine’? A neurovascular region-based hypothesis supported by epidemiological appraisal and pathophysiological considerations
Authors: Alicandri-Ciufelli Matteo , Aggazzotti-Cavazza Elisa , Cunsolo Eliomaria , Marchioni Daniele , Monzani Daniele , Genovese Elisabetta , Presutti Livio
Published: February 2016

Migraine (MG) and Ménière’s disease (MD) are idiopathic pathologies, but share several clinical, epidemiological, and genetic characteristics. Based on some considerations with regard to the pathophysiology and epidemiology of both MG and MD, the authors hypothesize that MG and MD could be interpreted as different neurovascular regional manifestations of the same pathology. An interpretation of MG and MD as the same phenomenon involving different brain regions could inspire and stimulate researchers studying aspects linking what has already been discovered in both fields, e.g. pathogenetic mechanisms or therapeutic development.
Assessing the Impact of Industrial Policies on Economic Development in Nepal
Authors: Kharel Khom Raj
Published: February 2016

This study analyzes the impact of industrial policies on Nepalese economic development. For this, simple regression model has been applied to estimate the impact of industrial policies on macroeconomic growth. The impact of industrial policies is analyzed as pre-liberalization period (1974/75-1991/92), post liberalization period (1991/92-2009/10) and whole period (1974/75- 2009/10). The result shows that there are significant positive relationship between economic openness and industrial registration, GDP, industrial GDP, employment, investment, foreign trade (imports and exports), trade balance, total revenue and trade tax in the whole of 1974/75- 2009/10. During pre-liberalization period, these relationships have also been found positive, as well. But, during the post liberalization period, the impact of economic openness on the growth of industries, GDP, employment, investment, total revenue, trade tax, total trade, import trade, export trade and trade balance are not found positive. To achieve the satisfactory result the government policies should be appropriately reviewed to make them investment friendly and accelerate the industrial development in Nepal.Economic Journal of Development Issues Vol. 17 & 18 No. 1-2 (2014) Combined Issue, Page: 40-75
Public Debt Stock, Education-Centric Human Capital and Economic Growth in Nepal
Authors: Dahal Madhav Prasad
Published: February 2016

Government borrows from domestic and foreign sources to finance its budget deficit. There are theories and empirical evidence that suggests negative effect of government debt on economic growth. By applying the autoregressive distributive lag (ARDL) approach to co integration on time series data of Nepal spanning over 1975-2014 , this study finds positive and statistically significant effect of total public debt on the GDP of the country. This result contradicts majority of the existing empirical literature. For the positive result we resort to Keynesian view on the effect of public debt in the economy. The total debt-to-GDP ratio of Nepal shows a declining trend. This should have some policy considerations in the conduct of fiscal policy in Nepal. The contribution of education-centric human capital on GDP is found positive as predicted by theory.Economic Journal of Development Issues Vol. 17 & 18 No. 1-2 (2014) Combined Issue, Page: 76-104
Determinants of People’s Participation in Forest Protection and Management: A Study in Kaski, Nepal
Authors: Ranjit Yogesh
Published: February 2016

Forests are easily available renewable natural resources in the world that directly and indirectly provide socio-economic benefits to the people living in and around the forests and also environmental protection and ecological balance to the global people. In Nepal, traditionally people’s participation in forest protection and sustainable management was very popular through many informal traditional and indigenous forest management committees. But, unfortunately, there was a huge lost of forests in quantity, quality and density due to some unfavorable socio-economic and political situations. So, the government has formally, legally and gradually shifted from centralized to decentralized protection and management of forests since mid of 1970’s through various forest plans, policies, acts, regulation and guidelines. The major aims of people’s participation are to get basic forest products, socio-economic development, and overall improvement of forest resources. Moreover, the role of I/NGOs and other stakeholders should be as partner, advisor, facilitator and more technical supporter for effective participation of people. However, the major challenges of people’s participation is how to make meaningful involvement of local people in better forest protection, management and sustainable development so that they will get sustainable economic benefits for livelihood, environmental protection and ecological balance.Economic Journal of Development Issues Vol. 17 & 18 No. 1-2 (2014) Combined Issue; Page: 175-186
Determinants of Share Price of Nepalese Commercial Banks
Authors: Bhattarai Yuga Raj
Published: February 2016

This study examines the determinants of share price of commercial banks listed on the Nepal Stock Exchange Limited over the period of 2006 to 2014. Data were sourced from the annual reports of the sampled banks and analyzed using regression model. The results revealed that earning per share and price- earnings ratios have the significant positive association with share price while dividend yield showed the significant inverse association with share price. The major conclusion of the study is that dividend yield, earning per share and price-earnings ratio are the most influencing factors in determining share price in Nepalese commercial banks. Economic Journal of Development Issues Vol. 17 & 18 No. 1-2 (2014) Combined Issue,Page: 187-198
Management of T1 Urothelial Carcinoma of the Bladder: What Do We Know and What Do We Need To Know?
Authors: Gershman Boris , Boorjian Stephen A. , Hautmann Richard E.
Published: February 2016

T1 bladder cancer constitutes approximately 25% of incident bladder cancers, and as such carries an important public health impact. Notably, it has a heterogeneous natural history, with large variation in reported oncologic outcomes. Optimal risk-stratification is essential to individualize patient management, targeting those at greatest risk of progression for aggressive therapies such as early cystectomy, while allowing others to safely pursue bladder-preserving approaches including intravesical bacillus Calmette-Guerrin (BCG). Current strategies for diagnosis, risk-stratification, and treatment are imperfect, but emerging technologies and molecular approaches represent exciting opportunities to advance clinical paradigms in management of this disease entity.
Phase I Study of Everolimus in Combination with Gemcitabine and Split-Dose Cisplatin in Advanced Urothelial Carcinoma
Authors: Abida Wassim , Milowsky Matthew I. , Ostrovnaya Irina , Gerst Scott R. , Rosenberg Jonathan E. , Voss Martin H. , Apolo Andrea B. , Regazzi Ashley M. , McCoy Asia S. , Boyd Mariel E. , Bajorin Dean F.
Published: February 2016

Background:

Cisplatin-based combination chemotherapy is standard first-line treatment for patients with advanced urothelial carcinoma (UC). Molecular profiling studies reveal that the PI3K/AKT/mTOR pathway is altered in a significant percentage of UCs.

Objective:

We conducted a phase I trial to evaluate the feasibility of combining the mTOR inhibitor everolimus with gemcitabine and split-dose cisplatin (GC) in advanced UC in the first-line setting.

Methods:

Patients received gemcitabine 800 mg/m2 and cisplatin 35 mg/m2 on days 1 and 8 of 21-day cycles for a total of 6 cycles in combination with everolimus at increasing dose levels (DL1:5 mg QOD, DL2:5 mg daily, DL3:10 mg daily) following a standard 3+3 design. Responses were assessed every 2 cycles. Patients with at least stable disease (SD) continued everolimus until progression. Goals were to establish dose-limiting toxicities (DLTs) and maximum tolerated dose (MTD) for the combination.

Results:

12 patients were enrolled, 3 at DL1, 3 at DL2, and an additional 6 at DL1 *(DL1 following de-escalation). 3/3 patients at DL2 had DLTs during cycle 1. 2/8 evaluable patients at DL1/DL1 * had DLTs during cycle 1. DLTs were primarily hematologic. Further toxicities, also primarily hematologic, were observed during later treatment cycles, leading to 8 chemotherapy dose reductions overall. Partial responses were observed in 4/10 evaluable patients, and SD in 5/10. Median overall survival was 10.8 months (95% CI 6.9, not reached).

Conclusions:

The maximum tolerated dose was reached at the lowest dose level, 5 mg QOD, for everolimus in combination with gemcitabine and split-dose cisplatin in advanced UC. The regimen was limited by hematologic toxicity.
Retrospective data suggests that the higher prevalence of benign paroxysmal positional vertigo in individuals with type 2 diabetes is mediated by hypertension
Authors: D'Silva Linda J. , Staecker Hinrich , Lin James , Sykes Kevin J. , Phadnis Milind A. , McMahon Tamara M. , Connolly Dan , Sabus Carla H. , Whitney Susan L. , Kluding Patricia M.
Published: February 2016

OBJECTIVE:

Benign Paroxysmal Positional Vertigo (BPPV) has been linked to comorbidities like diabetes and hypertension. However, the relationship between type 2 diabetes (DM) and BPPV is unclear. The purpose of this retrospective study was to examine the relationship between DM and BPPV in the presence of known contributors like age, gender and hypertension.

METHODS:

A retrospective review of the records of 3933 individuals was categorized by the specific vestibular diagnosis and for the presence of type 2 DM and hypertension. As the prevalence of BPPV was higher in people with type 2 DM compared to those without DM, multivariable logistic regressions were used to identify variables predictive of BPPV. The relationship between type 2 DM, hypertension and BPPV was analyzed using mediation analysis.

RESULTS:

BPPV was seen in 46% of individuals with type 2 DM, compared to 37% of individuals without DM (p< 0.001). Forty two percent of the association between type 2 DM and BPPV was mediated by hypertension, and supported hypertension as a complete mediator in the relationship between type 2 DM and BPPV.

CONCLUSIONS:

Hypertension may provide the mediating pathway by which diabetes affects the vestibular system. Individuals with complaints of dizziness, with comorbidities including hypertension and diabetes, may benefit from a screening for BPPV.
Visual perception of upright: Head tilt, visual errors and viewing eye
Authors: Kheradmand Amir , Gonzalez Grisel , Otero-Millan Jorge , Lasker Adrian
Published: February 2016

BACKGROUND:

Perception of upright is often assessed by aligning a luminous line to the subjective visual vertical (SVV).

OBJECTIVE:

Here we investigated the effects of visual line rotation and viewing eye on SVV responses and whether there was any change with head tilt.

METHODS:

SVV was measured using a forced-choice paradigm and by combining the following conditions in 22 healthy subjects: head position (20° left tilt, upright and 20° right tilt), viewing eye (left eye, both eyes and right eye) and direction of visual line rotation (clockwise [CW] and counter clockwise [CCW]).

RESULTS:

The accuracy and precision of SVV responses were not different between the viewing eye conditions in all head positions (P> 0.05, Kruskal-Wallis test). The accuracy of SVV responses was % significantly different between the CW and CCW line rotations (p ≈ 0.0001; Kruskal-Wallis test) and SVV was tilted in the same direction as the line rotation. This effect of line rotation was however not consistent across head tilts and was only present in the upright and right tilt head positions. The accuracy of SVV responses showed a higher variability among subjects in the left head tilt position with no significant difference between the CW and CCW line rotations (P> 0.05; post-hoc Dunn's test).

CONCLUSIONS:

In spite of the challenges to the estimate of upright with head tilt, normal subjects did remarkably well irrespective of the viewing eye. The physiological significance of the asymmetry in the effect of line rotation between the head tilt positions is unclear but it %may suggest suggests a lateralizing effect of head tilt on the visual perception of upright.
Diagnostic value of vestibular-evoked myogenic potentials in Ménière's disease and vestibular migraine
Authors: Salviz Mehti , Yuce Turgut , Acar Hurtan , Taylan Isil , Yuceant Gulsah Acar , Karatas Abdullah
Published: February 2016

Overlaps can be seen between vestibular migraine (VM) Ménière's Disease (MD) and diagnosis is difficult if hearing is normal. We aimed to investigate the sacculo-collic pathway in VM patients, MD patients, and healthy controls to define the diagnostic role of cervical VEMP (cVEMP). VEMP testing in response to 500 Hz and 1000 Hz air-conducted tone burst (TB) stimulation was studied prospectively in 22 subjects with definite VM (according to Bárány nomenclature), 30 subjects with unilateral definite MD, and 18 volunteers matched healthy controls. In VM subjects, response rate, p13 and n23 latencies were similar to healthy controls, but peak-to-peak amplitudes were bilaterally reduced at 500 Hz TBs (p= 0.005). cVEMP differentiated MD patients from VM and healthy controls with asymmetrically reduced amplitudes on affected ears with low response rates at 500 Hz TBs, and alteration of frequency dependent responses at 500 and 1000 Hz TBs. These findings suggest that cVEMP can be used as a diagnostic test to differentiate MD from VM. On the other hand, VEMP responses are symmetrically reduced on both sides in VM patients, suggesting that otolith organs might be affected by migraine-induced ischemia.
Variants in the KCNE1 or KCNE3 gene and risk of Ménière's disease: A meta-analysis
Authors: Li Yuan-Jun , Jin Zhan-Guo , Xu Xian-Rong
Published: February 2016

BACKGROUND:

Ménière's disease (MD) is defined as an idiopathic disorder of the inner ear characterized by the triad of tinnitus, vertigo, and sensorineural hearing loss. Although many studies have evaluated the association between variants in the KCNE1 or KCNE3 gene and MD risk, debates still exist.

OBJECTIVE:

Our aim is to evaluate the association between KCNE gene variants, including KCNE1 rs1805127 and KCNE3 rs2270676, and the risk of MD by a systematic review.

METHODS:

We searched the literature in PubMed, SCOPUS and EMBASE through May 2015. We calculated pooled odds ratios (OR) and 95% confidence intervals (CIs) using a fixed-effects model or a random-effects model for the risk to MD associated with different KCNE gene variants. The heterogeneity assumption decided the effect model.

RESULTS:

A total of three relevant studies, with 302 MD cases and 515 controls, were included in this meta-analysis. The results indicated that neither the KCNE1 rs1805127 variant (for G vs. A: OR = 0.724, 95%CI 0.320, 1.638, P= 0.438), nor the KCNE3 rs2270676 variant (for T vs. C: OR = 0.714, 95%CI 0.327, 1.559, P = 0.398) was associated with MD risk.

CONCLUSIONS:

Based on current evidence from published studies, neither of the two variants from KCNE was significantly associated with the risk of MD. Larger studies with mixed ethnicity subjects and stratified by clinical and sub-clinical characteristics are needed to validate our findings.
Histoire et géographie administrative de la Pévèle et des régions voisines de 850 à 1150
Authors: Derville Alain
Published: February 2016

Alain Derville, Geschiedenis en administratieve aardrijkskunde van Pévèle.

Pévèle is een vrij arm natuurgebied. Het was een frankische pagus waarvan de grenzen misschien aangegeven zijn door het gebruik van bunders van 1,4187 ha en van 1,2022 ha (voor de fiskus van Sint-Amands). Pévèle werd ingelijfd bij Vlaanderen omstreeks 930-950. De twee daaropvolgende eeuwen waren even duister als bewogen. Uit het weinige dat men ervan weet kan men opmaken dat het grafelijk domein zeer belangrijk bleef, dat de kasselrij Dowaai ontstond, ook die van Orchies on van de burg Cysoing, en dat Vlaanderen tot 1 150 gebieden in het zuidwesten veroverde.
A propos de l'adaptation de la fortification à l'artillerie vers les années 1400 : quelques remarques sur les problèmes de vocabulaire, de typologie et de méthode
Authors: Salamagne Alain
Published: February 2016

L'étude de l'architecture médiévale ne peut se passer du recours aux sources. L'analyse de ces dernières, confrontée à celle des monuments subsistants, doit nous amener à nous interroger sur la fiabilité des termes typologiques qui y sont employés. En partant de la problématique posée par les embrasures de tir, il semble bien qu'au-delà d'apparentes imprécisions le vocabulaire médiéval réponde assez bien aux formes qu'il entend décrire. L'apparition autour des années 1390 des premières embrasures adaptées aux armes à feu — des archères-canonnières — devait entraîner logiquement l'utilisation de termes nouveaux les désignant. La conception de ces embrasures, dont l'origine doit être recherchée sur les fortifications provisoires, résulta fréquemment au cours du XVe siècle de la collaboration entre maîtres-maçons et canonniers.

Diffusées précocement dans les anciens Pays-Bas bourguignons à la fin du XIVe siècle, puis très rapidement au cours des décennies suivantes dans les principales régions touchées par les conflits de la guerre de Cent Ans, les embrasures à feu attestaient de l'adaptation de l'architecture militaire aux nouvelles composantes poliorcétiques dès le début du XVe siècle et non pas dans la seconde moitié du XVe siècle comme on le pensait.
Characterisation of thin films of graphene–surfactant composites produced through a novel semi-automated method
Authors: Walch Nik J , Nabok Alexei , Davis Frank , Higson Séamus P J
Published: February 2016

In this paper we detail a novel semi-automated method for the production of graphene by sonochemical exfoliation of graphite in the presence of ionic surfactants, e.g., sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB). The formation of individual graphene flakes was confirmed by Raman spectroscopy, while the interaction of graphene with surfactants was proven by NMR spectroscopy. The resulting graphene–surfactant composite material formed a stable suspension in water and some organic solvents, such as chloroform. Graphene thin films were then produced using Langmuir–Blodgett (LB) or electrostatic layer-by-layer (LbL) deposition techniques. The composition and morphology of the films produced was studied with SEM/EDX and AFM. The best results in terms of adhesion and surface coverage were achieved using LbL deposition of graphene(−)SDS alternated with polyethyleneimine (PEI). The optical study of graphene thin films deposited on different substrates was carried out using UV–vis absorption spectroscopy and spectroscopic ellipsometry. A particular focus was on studying graphene layers deposited on gold-coated glass using a method of total internal reflection ellipsometry (TIRE) which revealed the enhancement of the surface plasmon resonance in thin gold films by depositing graphene layers.
ZODIACAL EXOPLANETS IN TIME (ZEIT). I. A NEPTUNE-SIZED PLANET ORBITING AN M4.5 DWARF IN THE HYADES STAR CLUSTER
Authors: Mann Andrew W. , Gaidos Eric , Mace Gregory N. , Johnson Marshall C. , Bowler Brendan P. , LaCourse Daryll , Jacobs Thomas L. , Vanderburg Andrew , Kraus Adam L. , Kaplan Kyle F. , Jaffe Daniel T.
Published: February 2016

Studying the properties of young planetary systems can shed light on how the dynamics and structure of planets evolve during their most formative years. Recent K2 observations of nearby young clusters (10–800 Myr) have facilitated the discovery of such planetary systems. Here we report the discovery of a Neptune-sized planet transiting an M4.5 dwarf (K2-25) in the Hyades cluster (650–800 Myr). The light curve shows a strong periodic signal at 1.88 days, which we attribute to spot coverage and rotation. We confirm that the planet host is a member of the Hyades by measuring the radial velocity of the system with the high-resolution near-infrared spectrograph Immersion Grating Infrared Spectrometer. This enables us to calculate a distance based on K2-25's kinematics and membership to the Hyades, which in turn provides a stellar radius and mass to ≃5%–10%, better than what is currently possible for most Kepler M dwarfs (12%–20%). We use the derived stellar density as a prior on fitting the K2 transit photometry, which provides weak constraints on eccentricity. Utilizing a combination of adaptive optics imaging and high-resolution spectra, we rule out the possibility that the signal is due to a bound or background eclipsing binary, confirming the transits’ planetary origin. K2-25b has a radius (

 R
⊕) much larger than older Kepler planets with similar orbital periods (3.485 days) and host-star masses (0.29 M
⊙). This suggests that close-in planets lose some of their atmospheres past the first few hundred million years. Additional transiting planets around the Hyades, Pleiades, and Praesepe clusters from K2 will help confirm whether this planet is atypical or representative of other close-in planets of similar age.
ELECTROMAGNETIC SPINDOWN OF A TRANSIENT ACCRETING MILLISECOND PULSAR DURING QUIESCENCE
Authors: Melatos A. , Mastrano A.
Published: February 2016

The measured spindown rates in quiescence of the transient accreting millisecond pulsars IGR J00291+5934, XTE J1751–305, SAX J1808.4–3658, and Swift J1756.9–2508 have been used to estimate the magnetic moments of these objects assuming standard magnetic dipole braking. It is shown that this approach leads to an overestimate if the amount of residual accretion is enough to distort the magnetosphere away from a force-free configuration through magnetospheric mass loading or crushing, so that the lever arm of the braking torque migrates inside the light cylinder. We derive an alternative spindown formula and calculate the residual accretion rates where the formula is applicable. As a demonstration we apply the alternative spindown formula to produce updated magnetic moment estimates for the four objects above. We note that based on current uncertain observations of quiescent accretion rates, magnetospheric mass loading and crushing are neither firmly indicated nor ruled out in these four objects. Because quiescent accretion rates are not measured directly (only upper limits are placed), without more data it is impossible to be confident about whether the thresholds for magnetospheric mass loading or crushing are reached or not.
ENERGETIC GAMMA RADIATION FROM RAPIDLY ROTATING BLACK HOLES
Authors: Hirotani Kouichi , Pu Hung-Yi
Published: February 2016

Supermassive black holes (BHs) are believed to be the central powerhouse of active galactic nuclei. Applying the pulsar outer-magnetospheric particle accelerator theory to BH magnetospheres, we demonstrate that an electric field is exerted along the magnetic field lines near the event horizon of a rotating BH. In this particle accelerator (or a gap), electrons and positrons are created by photon–photon collisions and accelerated in the opposite directions by this electric field, efficiently emitting gamma-rays via curvature and inverse-Compton processes. It is shown that a gap arises around the null-charge surface formed by the frame-dragging effect, provided that there is no current injection across the gap boundaries. The gap is dissipating a part of the hole’s rotational energy, and the resultant gamma-ray luminosity increases with decreasing plasma accretion from the surroundings. Considering an extremely rotating supermassive BH, we show that such a gap reproduces the significant very-high-energy (VHE) gamma-ray flux observed from the radio galaxy IC 310, provided that the accretion rate becomes much less than the Eddington rate particularly during its flare phase. It is found that the curvature process dominates the inverse-Compton process in the magnetosphere of IC 310, and that the observed power-law-like spectrum in VHE gamma-rays can be explained to some extent by a superposition of the curvature emissions with varying curvature radius. It is predicted that the VHE spectrum extends into higher energies with increasing VHE photon flux.
IMPULSIVITY PARAMETER FOR SOLAR FLARES
Authors: Fajardo-Mendieta W. G. , Martínez-Oliveros J. C. , Alvarado-Gómez J. D. , Calvo-Mozo B.
Published: February 2016

Three phases are typically observed during solar flares: the preflare, impulsive, and decay phases. During the impulsive phase, it is believed that the electrons and other particles are accelerated after the stored energy in the magnetic field is released by reconnection. The impulsivity of a solar flare is a quantifiable property that shows how quickly this initial energy release occurs. It is measured via the impulsivity parameter, which we define as the inverse of the overall duration of the impulsive phase. We take the latter as the raw width of the most prominent nonthermal emission of the flare. We computed this observable over a work sample of 48 M-class events that occurred during the current Solar Cycle 24 by using three different methods. The first method takes into account all of the nonthermal flare emission and gives very accurate results, while the other two just cover fixed energy intervals (30–40 keV and 25–50 keV) and are useful for fast calculations. We propose an alternative way to classify solar flares according to their impulsivity parameter values, defining three different types of impulsivity, namely, high, medium, and low. This system of classification is independent of the manner used to calculated the impulsivity parameter. Lastly, we show the relevance of this tool as a discriminator of different HXR generation processes.
Two new bee-killing flies from Brazil (Insecta: Diptera: Phoridae: Melaloncha)
Authors: Brown Brian
Published: February 2016

The genus Melaloncha is a large group of species of parasitoid phorid flies that attack Hymenoptera, mostly stingless bees (Meliponinae, Apidae) in the Neotropical Region.

Two new Brazilian species, Melaloncha (Melaloncha) peacockorum sp. n. and Melaloncha (Udamochiras) nielsi sp. n., are described and their identification clarified.
Théories féministes de l’éducation : où est le care ?
Authors: Mozziconacci Vanina
Published: February 2016

Bien qu’elle ne s’y réduise pas, la pensée du care apparaît, dans les années 1980, dans un contexte théorique marqué par la variété des pensées féministes. Le traitement de la question éducative porte l’empreinte de cette diversité ; les termes des débats entre les représentant·e·s de chaque courant féministe sur l’éducation informent ainsi sa genèse et son développement. Nous voudrions poser ici les jalons d’une cartographie des paradigmes féministes en matière d’éducation au tournant des années 1980-1990 aux États-Unis, afin de resituer la question du care en son sein. Ce travail s’avère d’autant plus nécessaire que le care occupe une place incertaine sur la carte des différentes prises de positions, entre pédagogie critique et pédagogie « féminine ». Cette ambiguïté met en jeu son statut théorique même : s’agit-il d’un modèle, d’un outil ou d’une valeur ?
Penser l’apport du care à l’évaluation et à la gestion des pratiques enseignantes
Authors: Bouchareu Manon
Published: February 2016

Cette recherche doctorale tente de mettre en lumière ce qu’une pensée de la vulnérabilité et de l’interdépendance des sujets peut apporter à la politique à visée égalitaire et démocratique de l’Éducation nationale française. Suite à un travail antérieur en études de genre, nous postulons que le pouvoir d’agir de professionnels remplissant une mission d’éducation peut être revitalisé grâce à la mobilisation de l’éthique du care, champ de référence aujourd’hui sous-estimé au sein du système éducatif. Cet article prend appui sur une analyse de Pascale Molinier et propose une analogie entre les modes de gestion à l’œuvre dans les secteurs hospitaliers et scolaires. Il s’attache à démontrer que l’articulation de la gestion administrative et du « souci de l’autre » est complexe tant pour l’institution que pour ses agents, mais qu’il est cependant essentiel de parvenir à concilier voire intégrer ces logiques en apparence contradictoire. Essentiel dans l’optique du développement d’un agir pédagogique visant l’émancipation de sujets relationnels : élèves bien sûr, mais également enseignant•es.
« Ethnographies » au service du développement de compétences scientifiques dans l’éducation préscolaire et l’enseignement de premier cycle dans la région des Açores
Authors: Egounleti Ludivine
Published: February 2016

Cet article a pour objet de questionner la méthodologie utilisée par les enseignants en formation en master d’enseignement premier degré et enseignement maternel à l’Université des Açores, pour évaluer le développement de compétences scientifiques chez les enfants en cycle primaire et préscolaire. Le « registre ethnographique » nommé ainsi par les étudiants et professeurs impliqués dans cette recherche, sera analysé en tant qu’outil scientifique permettant de lire des indices de développement de compétences scientifiques. L’utilisation des guillemets dans le titre et dans le texte fait référence aux différentes utilisations du terme ethnographie. Il s’agira donc de mettre en perspective, tant l’utilisation faite par les étudiants de ce qu’ils appellent le « registre ethnographique », que la méthodologie ethnographique même en tant qu’outil scientifique d’analyse des comportements des enfants.
Évaluation des pratiques psychoéducatives et résilience : influences des ressources psychosociales et du climat social scolaire
Authors: Talavera Christiam , Molina Guylaine , Mallet Jeanne
Published: February 2016

Les recherches actuelles sur la résilience s’intéressent à l’intervention psychoéducative sur des facteurs de risque, passant d’une résilience naturelle à une résilience assistée : nous considérons la promotion des pratiques de résilience comme un facteur de développement des capacités psychologiques des enfants. Dans ce sens, le milieu scolaire est susceptible de constituer un espace d’interaction sociale favorisant l’émergence de ressources socio-affectives, cognitives et conatives. Comment les pratiques scolaires peuvent-elles inclure la formation des capacités de résilience ? Pour répondre à cette question, nous avons travaillé auprès d’un échantillon de 109 enfants à haut risque d’écoles défavorisées du Pérou. Notre approche méthodologique a pris en compte la perception du climat social scolaire des enseignants et des élèves, en particulier (1) les relations entre élèves, entre enseignants, et entre élèves et enseignants, (2) l’organisation et (3) le développement des activités périscolaires. D’autre part, nous avons identifié les besoins psychosociaux des élèves sur la base de leurs discours. Ces analyses apportent des éléments de réponse pour proposer des pratiques psychoéducatives de résilience et des formations destinées aux enseignants.
Analysis of Tweets Related to Cyberbullying
Authors: Alim Sophia
Published: February 2016

The use of Twitter, especially by teenagers and young people, has raised the issue of cyberbullying. There is a lack of research into what types of advice and support are available in tweets for cyberbullying victims, and into the features influencing the spread of tweets related to cyberbullying. In this study, 7,315 tweets associated with cyberbullying were extracted and analysed. The results highlighted that tweets containing features such as a higher number of URLs, hashtags, or followers did not necessarily lead to a higher number of retweets. Sentiment analysis of the tweets presented both positive and negative sentiments from users towards cyberbullying. This study manually sampled 400 tweets for content analysis. Tweets covered a variety of areas associated with cyberbullying ranging from user opinions to news events. Results showed that 33% of tweets contained advice and support for cyberbullying victims. These tweets produced the highest number of retweets in comparison with tweets covering other areas associated with cyberbullying.
Probabilistic Relation between Triadic Closure and the Balance of Social Networks in Presence of Influence
Authors: Saha Rahul , Geetha G. , Kumar Gulshan
Published: February 2016

Data analysis in social networking is a major research concern in todays' environment in the field of interpretation models of data for any network. Social networking includes only two types of relationships: firstly, a friendly relation with whom one is having a link that can be considered as a positive relation and secondly, a relationship with which one is not connected or so called one's enemies labelled as negative relationships. Balanced theorem of social networking claims that all the nodes in the social network can be divided into two sets: a friendship set and an enemy set and provides the global view of relationships. In this paper, the authors have shown a probabilistic model to show that the global view of social links does not only depend on negative and positive relations to be distinguished, but it also depends on influences parameters.
Exploring the Relationship between Facebook and Self-Esteem among Turkish University Students
Authors: Mersin Sevinç , Acılar Ali
Published: February 2016

The main purpose of this study is to investigate the relationship between the use of Facebook and self-esteem among Turkish university students. Research data were obtained by surveying the undergraduate students in the Business Administration and Economics Departments of Bilecik Seyh Edebali University, in the academic year of 2013-2014. A questionnaire, including Rosenberg Self-Esteem Scale, was used to collect the data. According to the results of the study, self-esteem of Turkish university students does not have significant association with Facebook use. It was found that there was no statistically significant difference between self-esteem of those who use and those do not use Facebook. In addition, there was also no relationship found between characteristics of Facebook use and self-esteem among Facebook users either.
The Virtual Self and Possible Immersive Consequences of Uncharacteristic Self-Presentation in the Virtual Environment
Authors: Kukshinov Eugene Y.
Published: February 2016

The author employs a theoretic construct based on self-presentation approach and a self-concept which is taken as a complex structure of self-schema and possible selves. Within the framework of this model (or “self-matrix”), self-presentation is observed under the conditions of virtual reality, in which the usual ties between various aspects of one's self may be lost, producing uncharacteristic performance. The author claims that immersive interaction within the simulated environment of virtual reality may be experienced to such an extent that new properties of the self are obtained, bringing a change in real behavior. The resultant performance might contradict existing social circumstances and vice versa.
A Surveillance and Spatiotemporal Visualization Model for Infectious Diseases using Social Network
Authors: Fatima-Zohra Younsi , Djamila Hamdadou , Omar Boussaid
Published: February 2016

In this paper, the authors propose a surveillance and spatiotemporal visualization system to simulate the infectious diseases spread which enables users to make decisions during a simulated pandemic. This system is based on compartment Susceptible, Exposed, Infected, and Removed (SEIR) model within a Small World network and Geographic Information System. The main advantage of this system is that it allows not only to understand how epidemic spreads in the human population and which risk factors promote this transmission but also to visualize epidemic outbreaks on the region's map. Experiments results reflect significantly the dynamical behavior of the influenza epidemic and the system can provide significant guidelines for decision makers when coping with epidemic diffusion controlling problems.
H-EQPE Model and L-Checkpoint Algorithm
Authors: Ngan Chun-Kit , Li Lin
Published: February 2016

The authors propose a Hypoglycemic Expert Query Parametric Estimation (H-EQPE) model and a Linear Checkpoint (L-Checkpoint) algorithm to detect hypoglycemia of diabetes patients. The proposed approach combines the strengths of both domain-knowledge-based and machine-learning-based approaches to learn the optimal decision parameter over time series for monitoring the symptoms, in which the objective function (i.e., the maximal number of detections of hypoglycemia) is dependent on the optimal time point from which the parameter is learned. To evaluate the approach, the authors conducted an experiment on a dataset from the Diabetes Research in Children Network group. The L-Checkpoint algorithm learned the optimal monitoring decision parameter, 99 mg/dL, and achieved the maximal number of detections of hypoglycemic symptoms. The experiment shows that the proposed approach produces the results that are superior to those of the domain-knowledge-based and the machine-learning-based approaches, resulting in a 99.2% accuracy, 100% sensitivity, and 98.8% specificity.
Construct a Multi Criteria Decision Making Tool
Authors: Chen Chun-An
Published: February 2016

When dealing with multi-criteria decision-making problems in both engineering and management research fields, DEMATEL is one of the common methods applied by the researchers. However, so far there is no any easy-to-use DEMATEL application software. Moreover, for DEMATEL, the threshold value setup may vary in different researchers. Later MMDE method was developed, which could obtain clear threshold value. However, its concept and complicated computing process hinder the common researchers to use it quickly. Without any related application software either, it is quite inconvenient to the researchers. Therefore, the study develops an application software that combines with these two methods and incorporates with friendly interfaces. In the paper, it takes how to develop Taiwan into a passenger transport center of East Asia as an example, to illustrate the operation and application of the software. It provides the researchers using DEMATEL and MMDE methods with an excellent and easy-to-good tool.
Comparative Analysis of Neural Network and Fuzzy Logic Techniques in Credit Risk Evaluation
Authors: Grace Asogbon Mojisola , Williams Samuel Oluwarotimi
Published: February 2016

Credit risk evaluation techniques that aid effective decisions in credit lending are of great importance to the financial and banking industries. Such techniques assist credit managers to minimize the risks often associated with wrong decision making. Several techniques have been developed in the time past for credit risk evaluation and these techniques suffer from one form of limitation or the other. Recently, powerful soft computing tools have been proposed for problem solving among which are the neural networks and fuzzy logic. In this study, a neural network based on backpropagation learning algorithm and a fuzzy inference system based on Mamdani model were developed to evaluate the risk level of credit applicants. A comparative analysis of the performances of both systems was carried out and experimental results show that neural network with an overall prediction accuracy of 96.89% performed better than the fuzzy logic method with 94.44%. Finding from this study could provide useful information on how to improve the performance of existing credit risk evaluation systems.
Method for Improving Data Security in Register Files Based on Multiple Pipeline Restart
Authors: Chen Qingyu , Wu Longsheng , Li Li , Ma Xuhan , Wang Xu An
Published: February 2016

Data security in the register file significantly decreases as a result of technology scaling. Based on pipeline restart, the method of improving the data security and reliability in register files is presented in this paper. As the data and its replica simultaneously exist as a redundant copy of each other in half-custom register files, when an uncorrectable error is detected in the data during the access of the register file, its replica will be checked for subsequent processor operation by the restart of pipeline. In addition, the correctable error in data or its replica can also be scrubbed by rollback and restart of pipeline. Finally, the proposed method is evaluated and the results show that the hardware overhead increases by only 2%, whereas the reliability of data in register file increases by more than 2.5 times. This method can significantly improve the data security in the register file without distinct overhead increasing.
An Additively Homomorphic Encryption over Large Message Space
Authors: Chen Hu , Hu Yupu , Lian Zhizhu , Jia Huiwen , Wang Xu An
Published: February 2016

Fully homomorphic encryption schemes available are not efficient enough to be practical, and a number of real-world applications require only that a homomorphic encryption scheme is somewhat homomorphic, even additively homomorphic and has much larger message space for efficiency. An additively homomorphic encryption scheme based heavily on Smart-Vercauteren encryption scheme (SV10 scheme, PKC 2010) is put forward, where both schemes each work with two ideals I and J. As a contribution of independent interest, a two-element representation of the ideal I is given and proven by factoring prime numbers in a number field. This two-element representation serves as the public key. The authors' scheme allows working over much larger message space than that of SV10 scheme by selecting the ideal I with larger decryption radius to generate public/private key pair, instead of choosing the ideal J as done in the SV10 scheme. The correctness and security of the scheme are shown, followed by setting parameters and computational results. The results indicate that this construction has much larger message space than SV10 scheme.
Assistive Technologies and the Carers of People with Dementia
Authors: Bhattacharyya Sarmishtha , Benbow Susan Mary
Published: February 2016

Assistive technologies have a role in supporting both formal and informal carers of people with dementia, and in maintaining the independence, and quality of life of both people with dementia and their carers. The authors report a narrative review of the use of technological interventions to empower the carers of people with dementia, and relate this to a model of ageing well. They argue that this highlights the importance of empowering and connecting with carers in order to increase their participation and connection in the care of their relative/client; and conclude that both empowerment and connection contribute to maintaining autonomy and well-being of both carers and people with dementia. Technological interventions should not be used as alternatives to connection. The emphasis in practice should be on empowering and connecting with both carers and people with dementia.
Property-based Semantic Similarity and Relatedness for Improving Recommendation Accuracy and Diversity
Authors: Likavec Silvia , Osborne Francesco , Cena Federica
Published: February 2016

The authors introduce new measures of semantic similarity and relatedness for ontological concepts, based on the properties associated to them. They consider two concepts similar if, for some properties they have in common, they also have the same values assigned to these properties. On the other hand, the authors consider two concepts related if they have the same values assigned to different properties. These measures are used in the propagation of user interest values in ontology-based user models to other similar or related concepts in the domain. The authors tested their algorithm in event recommendation domain and in recipe domain and showed that property-based propagation based on similarity outperforms the standard edge-based propagation. Adding relatedness as a criterion for propagation improves diversity without sacrificing accuracy. In addition, assigning a certain relevance to each property improves the accuracy of recommendation. Finally, the property-based spreading activation is effective for cross-domain recommendation.
Scaling with Confidence
Authors: Wang Qing , Shen Zeyu
Published: February 2016

Constraints ubiquitously exist in many real-life applications for entity resolution. However, it is always challenging to effectively specify and use such constraints for performing ER tasks. In particular, not every constraint is equally robust. Adding weights to express the “confidence” on constraints thus becomes a natural choice. In this paper, the authors study entity resolution (ER), the problem of determining which records in one or more databases refer to the same entities, in the presence of weighted constraints. They propose a unified framework that allows us to associate a weight for each constraint, capturing the confidence for its robustness in an ER model. The authors develop an approach to learn weighted constraints based on domain knowledge, and investigate how effectively and efficiently weighted constraints can be used for generating an ER clustering and for determining a propagation order across multiple entity types. Their experimental study shows that using weighted constraints can lead to improved ER quality and scalability.
The development, validation and standardisation of a questionnaire for ICT professional development of mathematics teachers
Authors: Leendertz Verona , Blignaut A. Seugnet , Ellis Suria , Nieuwoudt Hercules D.
Published: February 2016

This article reports on the development of a custom-made questionnaire. The questionnaire was developed with the aim to compile guidelines for the professional development (PD) of mathematics teachers for the pedagogical use of information and communication technology (ICT) integration in teaching and learning. During the standardisation and validation of the questionnaire it was distributed to 179 schools and 300 teachers in eight educational management districts in the Western Cape, South Africa. The extracted factors had a reliability level higher than 0.8, which indicates the items in the questionnaire are significant to address the research problem and the questionnaire is valid for ICT PD.
Correlation between cyclin D1 expression and standard clinicopathological variables in invasive breast cancer in Eastern India
Authors: Sarkar Santanu , Kanoi Aditya , Bain Jayanta , Gayen Rajarshi , Das Kashi Nath
Published: February 2016

Introduction: Breast cancer is the leading oncogenic threat in South-East Asian women showing an inexplicable biological aggressiveness. High expression of cyclin D1, a key molecule in breast cancer pathogenesis, has been shown by previous studies in the Western world to be associated with favorable tumoral characteristics. Apart from determining the correlation between cyclin D1 expression and standard clinicopathological variables in invasive breast cancer in Eastern India, questions that we aimed to answer through this study included: Is there a significant regional difference in expression patterns of this protein? And if yes, can it possibly account for the epidemiological differences in breast cancer occurrence and biological behavior? Finally, is testing for overexpression of this protein in regions with limited resources beneficial? Materials and Methods: The present study was carried out on 110 previously untreated, female patients with primary breast carcinoma. Cyclin D1 expression was determined by immunohistochemistry using specific anti-cyclin D1 monoclonal antibodies. Results: Overexpression of cyclin Dl was found in 78 of 110 cases (70.9%). High expression of cyclin D1 showed a significant negative correlation with tumor size (P = 0.023) and tumor grade (P = 0.045). Estrogen receptor and progesterone receptor positive cases showed a significantly positive correlation with cyclin D1 overexpression (P = 0.026 and 0.046, respectively). Interestingly, cyclin D1 positivity showed a strong correlation with the type of surgical procedure performed (P = 0.002). Conclusion: Cyclin D1 overexpression in breast cancer is associated with less aggressive tumoral characteristics. Furthermore, its potential epidemiological role and utility as a prognostic marker have been discussed.