bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dependence of the content and distribution of metals in snow cover on natural and anthropogenic factors (south Sakhalin, Sea of Okhotsk)
Authors: Kazakova E.N. , Lobkina V.A. , Zarubina N.V. , Elovskiy E.V. 
Published: November 2012

AbstractSnow cover contains various impurities from natural and anthropogenic sources. These impurities percolate into the soil, groundwater and surface water during snowmelt, significantly influencing their composition. We consider the metals content in snow cover in south Sakhalin, Sea of Okhotsk. Samples were taken in February–April 2011 by the Laboratory of Avalanche and Debris-flow Processes of the Sakhalin Department of the FEGI FEB RAS. Sample analysis was performed by the Laboratory of Analytical Chemistry, FEGI FEB RAS. Overall, the metals present in the highest concentrations were Ca, K, Mg and Na. Other metals have low concentrations at the level of total mineralization of surface water and groundwater. Thus, the main sources of metals in south Sakhalin snow cover are the water surface of the sea and anthropogenic sources.
The influences of temperature and normal load on the shear strength of snow consisting of precipitation particles
Authors: Matsushita Hiroki , Matsuzawa Masaru , Abe Osamu 
Published: November 2012

AbstractAn experiment using artificial snow was conducted to clarify the influences of temperature and normal load on temporal variations in the shear strength of snow. Artificial snow consisting of dendritic crystals was allowed to accumulate to ∼60 cm depth for the experiment. The shear strength, temperature and weight of the overlying snow were measured at three different depths in the accumulated snow. For the measurement of shear strength, the shear frame index (SFI) was found using a shear frame by placing weights with different masses on the snow contained within the frame. The measured SFI values were treated with the Mohr–Coulomb failure criterion to find the snow cohesion factor C and the internal friction factor tanϕ. The results highlighted similar trends for SFI and C values by which their rate of increase over time was greater with higher snow temperatures and normal load caused by overlying snow. This indicates that C contributes significantly to increased SFI values. tanϕ decreased over time with higher snow temperatures and increased with lower snow temperatures. In low-temperature conditions, in particular, it is likely that snow crystals are compacted but maintain their dendritic morphology.
An automated approach to the location of icequakes using seismic waveform amplitudes
Authors: Jones G.A. , Kulessa B. , Doyle S.H. , Dow C.F. , Hubbard A. 
Published: November 2012

AbstractWe adapt from volcano seismology an automated method of locating icequakes with poorly defined onsets and indistinguishable seismic phases, which can be tuned to either body or surface waves. The method involves (1) the calculation of the root-mean-squared amplitudes of the filtered envelope signals, (2) a coarse-grid search to locate the hypocentres of the seismic events using their amplitudes and (3) refinement of hypocentre locations using an iteratively damped least-squares approach. First, we calibrate the adapted method by application to real data, recorded using a network of six passive seismometers, in response to surface explosions in known locations on the western margin of the Greenland ice sheet. Second, we present a seismic modelling experiment simulating rapid supraglacial lake drainage driven hydrofracture through 1 km thick ice. The test reveals horizontal and vertical location uncertainties of ∼121 m and 275 m, respectively. Since seismic emissions from glaciers and ice sheets often have complex waveforms akin to those considered here, our adapted method is likely to have widespread applicability to glaciological problems.
La fin du patriarcat : pour quelles mutations ?
Authors: Colonna Marie-Laure 
Published: November 2012

Au delà des problématiques personnelles de nos analysants, leurs symptômes et l’interprétation de leurs rêves les plus profonds illustrent aussi les rythmes, les progrès et les reculs de la psyché collective. L’auteur applique cet angle de vue, cher à Jung, à la question très actuelle des mutations de l’esprit patriarcal devant l’émergence de nouvelles formes de conscience liées à la revalorisation de la féminité. L’interprétation de ces songes ouvre à une conception du monde ou le « logos du féminin », l’intelligence réceptrice, (et non pas seulement son éros) vient réunir les opposés dissociés actuellement par l’unilatéralité prométhéenne du principe masculin dans la culture et dans la société occidentale.
Le sextolet du couple
Authors: Agnel Aimé 
Published: November 2012

L’anima, différenciée du féminin de l’homme, est présentée sous une double forme : complexuelle (familière, en lien avec l’imago de la mère) et archétypique (étrangère, incitant, au contraire, à se détacher d’elle). À quoi correspond une double orientation de l’homme, dont rend justement compte le film d’Ida Lupino, The Bigamist . Ces deux formes opposées mais complémentaires caractérisent aussi l’animus de la femme. Le film de Joseph Mankiewicz, L’Aventure de Mme Muir, est donné comme exemple de la tension créative produite chez une femme par les « deux esprits » qui l’habitent. Pour tenir compte, cependant, de cette différenciation du complexe et de l’archétype, il convient de substituer à la figure du quaternion du couple présenté par Jung dans la Psychologie du transfert, celle du sextolet (six occurrences au lieu de quatre) qui reconnaît la relation inconsciente des deux partenaires avec l’anima et l’animus sous leurs deux formes contraires.
Intuition dans le transfert : de la cryptomnésie à l'interprétation
Authors: Marnette Christian 
Published: November 2012

Perception « via l’inconscient », l’intuition se révèle difficile à saisir de par sa fugacité. Lors du travail analytique, alimentée par des cryptomnésies, elle contribue à l’animation de la relation transférentielle et soutient le mouvement de transformation psychique. Son caractère inconscient nécessite qu’elle soit accueillie, évaluée et travaillée comme le rêve, dans une attention au temps, au corps et à l’histoire du sujet afin que se déploie son pouvoir opératoire.
Les Livres rouges , le feu, la nuit
Authors: Marcheschi Jean-Paul 
Published: November 2012

Jean-Paul Marcheschi, peintre, sculpteur, confie quotidiennement depuis 1981 ses notes, ses rêves, ses dessins, ses peintures dans des livres, les Livres rouges qu’il définit comme une « chronobiologie totale de l’existence ». Il nous en dit l’origine et leur histoire jusqu’à nos jours. Ce qui l’amène à évoquer son rapport au temps (celui du quotidien, celui des maîtres anciens, celui des temps les plus reculés), ainsi que son rapport à l’obscur et à la nuit. Mais si la décision du passage vers les Livres rouges allait dérouter sa vie de peintre, une autre rencontre, quelques années plus tard, celle avec le feu, reste décisive, puisque le feu tient lieu de pinceau et de réserve de substances, de thèmes et d’images depuis lors. De son pinceau de feu, il tire des tableaux, illustre ses Livres rouges , peint, mais aussi organise de vastes installations où tous les éléments sont convoqués, du ciel jusqu’à cette eau noire qui baigne désormais dans un grand nombre de ses expositions.
Publier des « chiffres officiels » ou les contraintes bureaucratiques et politiques qui façonnent l'expertise d'État
Authors: Penissat Étienne 
Published: November 2012

Résumé En déplaçant la focale d’analyse de l’usage des « chiffres officiels » à leur fabrication et leur publicisation, l’article contribue à une sociologie de l’expertise d’État. Il s’appuie sur l’ethnographie du service statistique du ministère du Travail. L’observation in situ des statisticiens qui rédigent ces publications permet de dégager trois types d’enjeux : la légitimation publique de leur métier, la bureaucratisation du travail d’écriture comme contrepartie du « droit à publier » et la politisation des statistiques qui, dans certains cas, peut s’opérer en lien avec l’agenda politique. Les conflits qui se nouent autour de ces enjeux invitent à ne pas réifier les frontières entre « politique » et « administration » mais à penser les différentes logiques de domination à l’œuvre dans ces institutions.
Former pour dépolitiser
Authors: Keyhani Narguesse 
Published: November 2012

Résumé L’article analyse, pour les années 1975-1990, les conditions et modalités de la mobilisation de savoirs sur les relations interculturelles par le secrétariat d’État aux Travailleurs immigrés et par les organisations parapubliques sous tutelle de l’administration. Située aux marges de la Direction de la Population et des migrations, l’une d’entre elles, l’ADRI, est chargée de promouvoir un dialogue entre « Français » et « immigrés ». Elle contribue à instituer l’interaction administrative avec les immigrés comme cible de l’action publique. L’article montre que la formation aux relations interculturelles des agents des services publics est la déclinaison, en termes administratifs, du mot d’ordre du dialogue. Mais la mobilisation de ces savoirs permet également de revendiquer un territoire d’action spécifique dans un contexte de forte politisation de l’enjeu de l’insertion des immigrés. Cette revendication passe par une requalification et une dépolitisation du problème public de l’insertion.
Les quatre vies d'Al Jazeera
Authors: Corbucci Théo 
Published: November 2012

Résumé De 1996 à nos jours, Al Jazeera a connu plusieurs vies. Celle de la naissance sur le plan médiatique international d’abord, au lendemain des attentats du 11 septembre 2001. Celle de la confirmation ensuite, avec par exemple sa couverture remarquée du conflit irakien, ou encore celle du conflit israélo-libanais de 2006. Mais entre 2007 et 2010, l’actualité dans le monde arabe se stabilise. Limitée à être « la chaîne du Proche et du Moyen-Orient » pour beaucoup de médias et de téléspectateurs, Al Jazeera atteint une période de stagnation, qui durera jusqu’à la fin de l’année 2010. C’est le « Printemps arabe » qui viendra sortir Al Jazeera de sa léthargie. Au point qu’elle se jettera dans la couverture de cet événement, littéralement corps et âme. Au risque de se voir, une fois de plus, accusée de parti pris, et de voir s’éloigner une partie de sa base, peinée de voir certaines revendications populaires passées sous silence, en particulier dans le Golfe. Ce qui a été un peu rapidement décrit comme le « moment américain » d’Al Jazeera, censé être la consécration de plus d’une quinzaine d’années de travail acharné, pourrait s’avérer être le début de la fin pour la chaîne dans le monde arabe. Mais le groupe a déjà d’autres pistes, aux quatre coins de la planète, pour tenter de sortir de cette impasse.
Studies with gel‐filled sandstone samples with implications for the origin of induced polarization
Authors: Hördt Andreas , Milde Stefanie 
Published: November 2012

ABSTRACTThe origin of induced polarization (IP) in the pore space of sediments is not completely understood. Existing theories may be separated into two groups. The electrochemical polarization mechanism requires only an electrical double layer around the sediment grains, with the grain size determining the spatial scale. The membrane polarization mechanism is based on a coupling between pores of different sizes and ion mobilities to produce a frequency‐dependent conductivity. We have carried out complex electrical conductivity measurements on gel‐filled sandstone samples with different gel concentrations and fluid salinities. The idea is to reduce the ion mobility in the pore space, allowing to test hypotheses resulting from the different theories.The conductivity spectra of the gel‐filled sandstone samples are distinctly different from those of water‐filled samples. The phase shifts decrease, the spectrum is flattened and the maximum moves towards higher frequencies. In terms of Cole‐Cole parameters, the gel decreases the chargeabilities and decay times. The effect can be clearly separated from that of increasing water salinity. We conclude that ion mobility in large pores is an important factor for the generation of the IP‐effect. Whereas the decrease in phase shift by the gel can be explained with both electrochemical and membrane polarization, the observed decrease in relaxation times seems to be inconsistent with either type of theories.
Induced polarization 3D tomography of an archaeological direct reduction slag heap
Authors: Florsch N. , Llubes M. , Téreygeol F. 
Published: November 2012

ABSTRACTBoth environmentalists and archaeologists are interested in the detection and quantification of the remains of mine slag heaps from ancient smelters: possible pollution of the slag heaps and information concerning the history of the smelter's mine. Although magnetic surveys can be used to detect subsurface slag accumulations, it is not possible to derive the total amount of material from such surveys or to accurately delineate the heaps through the use of this method. Conversely, ‘Induced Polarization’ (IP) surveying allows a relevant and robust assessment of the volume of slag concentrations to be determined. In the present study, we follow up on results obtained in a previous study, carried out at the 14th Castel‐Minier mine (Ariège, France) site, where we have shown that the chargeability is proportional to the slag concentration in the ground and have used this property to perform 3D tomography of the heap. Based on a previous investigation using spectral induced polarization along a simple profile showing that the phase peak related to the slags is situated at approximately 1 Hz, in the present paper we extend our prospection to 3D by using a Terrameter SAS1000 and measuring temporal chargeability. The set of three‐dimensional data is recorded by means of classical transect measurements along parallel close profiles and is then interpreted using the RES3DINV code. Finally, archaeological and auger soundings confirmed the assessments derived from this geophysical investigation. We also briefly discuss the source of the IP signal, which we suspect to be induced by magnetite particles embedded in the slags.
Effect of Denture Cleanser on Weight, Surface Roughness and Tensile Bond Strength of Two Resilient Denture Liners
Authors: Chandu GS , Huddar Dayanand Ashok , Hombesh MN , Nanjannawar Girish Shankar 
Published: November 2012

ABSTRACT

Aim
Evaluating effects of a denture cleanser on weight, surface roughness and tensile bond strength on two resilient lining materials.

Materials and methods
Specimens of heat cure acrylic resin were prepared to verify weight change, surface roughness and tensile bond strength. Specimens were divided into four groups: Relined with resilient liner Visco-gel, soft liner immersed in Clinsodent denture cleanser and water and evaluated immediately, 24 hours, 7 and 15 days. Weight changes, roughness and tensile bond strength were determined and data submitted to statistical analysis.

Results
Visco-gel specimens immersed in water (group 1) have shown significant increased surface roughness than those immersed in Clinsodent (group 3) during 24 hours, 7 and 15 days. The soft liner specimens immersed in water (group 2) have shown increased surface roughness than those immersed in Clinsodent (group 4) during 24 hours and 7 days. Visco-gel specimens immersed in water have shown significant increased tensile bond strength during 7 and 15 days than those immersed in Clinsodent. The soft liner specimens immersed in water have shown increased tensile bond strength than those immersed in Clinsodent during immediately, 24 hours and 7 days.

Conclusion
Within limitations of this study, specimens immersed in Clinsodent demonstrated increased weight changes compared with water. Specimens immersed in water demonstrated lesser surface roughness and tensile bond strength compared with specimens immersed in Clinsodent.

Clinical significance
Resilient denture liners and denture cleansers are most commonly used materials in prosthodontics. Caution should be taken while selecting the materials which cause the detrimental changes on properties of the materials.

How to cite this article
Huddar DA, Hombesh MN, Sandhyarani B, Chandu GS, Nanjannawar GS, Shetty R. Effect of Denture Cleanser on Weight, Surface Roughness and Tensile Bond Strength of Two Resilient Denture Liners. J Contemp Dent Pract 2012;13(5):607-611.
In vitro Evaluation of Microleakage under Ceramic and Metal Brackets Bonded with LED and Plasma Arc Curing
Authors: Davari Abdolrahim , Yassaei Soghra , Karandish Mariam , Zarghami Fateme 
Published: November 2012

ABSTRACT

Aim
The aim of the present study was to evaluate these two high intensity light curing units regarding microleakage beneath metal and ceramic brackets.

Materials and methods
A total of 60 freshly extracted human premolar teeth were randomly divided into four groups of 15 samples; group I: Metal bracket + LED cured, group II: Ceramic bracket + LED cured, group III: Metal bracket + plasma arc cured, group IV: Ceramic bracket + plasma arc cured.
After photopolymerization, the teeth were immersed in water and thermocycled (500 cycles between 5 and 55). Specimens were further sealed with nail varnish and stained with 5% basic fuchsin for 24 hours. All of the teeth were sectioned with two parallel longitudinal occlusogingival cuts and examined under a stereomicroscope. The microleakage was measured with a digital caliper and scored from 0 to 3 for marginal microleakage at the bracket-adhesive and adhesive-enamel interfaces from both the occlusal and gingival margins.

Results
Microleakage was detected in all groups. The plasma arc cured group showed less microleakage than light emitting diode (LED) cured in all samples at the enamel-adhesive interface at the gingival margin (ceramic brackets, p = 0.009 and metal brackets, p = 0.005). The plasma arc cured samples showed less microleakage than LED cured in metal brackets at the adhesive-brackets interface at the occlusal margin (p = 0.033). While curing with an LED unit, ceramic brackets displayed significantly less microleakage than metal ones at the gingival margin of adhesive-enamel interface (p = 0.013).
The gingival margin in all groups exhibited higher microleakage compared with those observed in occlusal sides in all sample groups (p < 0.001).
Conclusion
1. LED units cause more microleakage than plasma arc units.
2. In all groups the microleakage at the gingival margin is greater than the occlusal margin.

Clinical significance
The microleakage formation permits the passage of bacteria and oral fluids initiating white spot lesions beneath the bracket base.

How to cite this article
Davari A, Yassaei S, Karandish M, Zarghami F. In vitro Evaluation of Microleakage under Ceramic and Metal Brackets Bonded with LED and Plasma Arc Curing. J Contemp Dent Pract 2012;13(5):644-649.
Glass Ionomer Cement as an Orthodontic Bonding Agent
Authors: Ali Hashim , Maroli Sasi 
Published: November 2012

ABSTRACT
Aim
• To find an alternative to popular orthodontic bonding agent composite resin and elimination of acid etching.
• To assess GC Fuji Ortho as an orthodontic bonding agent under different enamel conditions and evaluate the shear bond strength.
• Enamel surfaces intentionally contaminated with saliva, conditioned enamel using Fuji dentin conditioner and conventional 37% phosphoric acid/60 seconds.
• To evaluate and compare shear bond strength to a ‘gold standard’ composite bonding agent—Rely-a-Bond.

Materials and methods
The sample consisted of 50 human premolar teeth collected and stored in formalin. Out of 50 samples, 38 were upper premolars and 12 were lower second premolars. The total sample divide into 10 each. Stainless steel contour bracket with bondable mesh measured about 3.42 mm in length and 3.31 mm in width. Each tooth sample was embedded in a cylindrical acrylic block of polymethyl methacrylate (PMMN). The buccal surfaces of all the samples were polished with fluoride-free pumice and rinsed thoroughly. Group 1 bonded with GC Fuji Ortho after getting etched with 37% phosphoric acid/60 seconds. Group 2 was contaminated with saliva. Group 3 was conditioned with Fuji dentin condition. Group 4 unetched, uncontaminated, and Group 5 was treated with rely bond composite resin after getting etched with 37% phosphoric acid. The shear bond strength was tested using Instron universal testing machine. The force at which bond failed was recorded on XY recorder as shear/peel bond strength of the material used for bonding. The reading obtained were statistically analyzed.

Result
Rely bond showed highest bond strength of 64.70 N (Newtons). The next highest value was that of Group 1. The lowest bond strength in the Group 4.

Conclusion
GC Fuji Ortho can be used as a bonding agent on etched enamel. Unetched, uncontaminated enamel surfaces were inadequate for bracket bonding.

Clinical significance
Potential benefits of glass ionomer cements can be utilized in orthodontic bonding.

How to cite this article
Ali H, Maroli S. Glass Ionomer Cement as an Orthodontic Bonding Agent. J Contemp Dent Pract 2012; 13(5):650-654.
A Cross-Sectional Study on the Relationship between Behavioral Variables and Economic Status in Periodontal Disease among Elderly Individuals
Authors: Prasanna HR , Chandan DN , Kripal Krishna , Hari KR , Adarsh CM , Reddy T Praveenkumar 
Published: November 2012

ABSTRACT

Objectives
The objectives of this study were to examine the relationship between behavioral variables, such as smoking and level of income on the periodontal disease among older South Indian adults.

Materials and methods
Data pertaining to participants aged 55 years and above from the Outpatient Department of MR Ambedkar Dental College and Hospital were used. A total of 209 elderly subjects were selected by convenient sampling and a complete evaluation of their periodontal status was carried out.

Results
Our study showed that patients belonging to the lower income group and smokers had more severe disease compared to other groups. They were found to have higher plaque scores, higher calculus scores, deeper pockets and attachment loss compared to the subjects of the other groups.

Conclusion
Variables, such as smoking, gender and low income are associated with the severity of periodontal disease in older adults.

How to cite this article
Prasanna HR, Chandan DN, Kripal K, Hari KR, Adarsh CM, Reddy TP. A Cross-Sectional Study on the Relationship between Behavioral Variables and Economic Status in Periodontal Disease among Elderly Individuals. J Contemp Dent Pract 2012;13(5):699-702.