bluuebunny/crossref_metadata_2025 huggingface dataset:
Traumatismes et perversions des relations parents-enfants
Authors: Pernot-Masson Anne-Catherine
Published: June 2016

Thérapeutes d’enfants, nous sommes amenés à rencontrer de jeunes patients pris dans une relation perverse avec leurs parents, qui les utilisent comme des objets pour leur propre survie psychique. Travailler avec l’hypothèse des traumatismes subis par ces parents, ou leurs aïeux, peut nous permettre de garder notre liberté de penser et notre créativité, dans ces situations délétères. Des exemples tirés de la mythologie grecque et de la clinique en seront donnés : le thérapeute doit percevoir les affects gelés chez le patient, dire les mots qui n’ont jamais été inscrits, et transformer ainsi la catastrophe en histoire racontable, dont le refoulement sera enfin possible. Les pistes de travail pratiques indiquées, tant chez les parents que chez les enfants, sont appuyées sur les théories analytiques, systémiques, et sur les recherches neurophysiologiques sur lesquelles s’étayent l’EMDR (Eye Movement Desensitization and Reprocessing).
Les Risques Psycho-Sociaux Scolaires (RPSS)
Authors: Romano Hélène
Published: June 2016

Le terme de risque psycho-social dans le monde professionnel est actuellement régulièrement mis en avant et atteste de l’évolution de notre société dans l’attention portée aux conditions du travail. Mais passé les murs du monde professionnel adulte, l’usage de ce terme disparaît. C’est particulièrement le cas au sein des établissements scolaires, pourtant lieux de travail et d’activités pour les élèves comme pour les professionnels. Nous souhaitons par cette communication proposer une définition des RPSS ; relever les formes prises par les RPS en milieu scolaire, en comprendre les manifestations et les effets, puis envisager les possibilités de prises en charge.
Autisme : évaluation des diagnostics et des traitements dans un intersecteur de pédopsychiatrie
Authors: Touati Bernard , Mercier Annie , Tuil Lou
Published: June 2016

Dans le cadre d’une recherche sur un intersecteur de pédopsychiatrie, il nous a paru pertinent de différencier parmi les TED, aux plans clinique et psychopathologique, les mécanismes de fonctionnement autistiques de ceux dits psychotiques. Cette différence a, selon nous, des effets importants que nous développons, quant à la compréhension de chaque sujet et quant aux mesures thérapeutiques, éducatives et pédagogiques mises en œuvre. Sur 138 patients inclus dans l’étude pour une file active d’environ 1800 patients, 53 répondaient aux critères d’autisme et 85 à ceux de psychose (ou TED non autistique). Les interventions visent des actions et élaborations pluridimensionnelles, intensives, précoces, soutenues dans la durée, et coordonnées par des psychiatres-psychanalystes. Pour chaque groupe, des grilles d’analyse évolutive ont été appliquées sur deux temps définis, état initial/état actuel. Les résultats démontrent une évolution positive ou très positive dans plus de la moitié des cas, une évolution moyenne ou faible pour un tiers des enfants, une stagnation ou une mauvaise évolution pour un enfant sur dix.
Une clinique des affiliations pour une psychopathologie contemporaine
Authors: Feldman Marion , Mansouri Malika , Revue Paola , Moro Marie Rose
Published: June 2016

Partant d’une analyse approfondie de trois recherches en psychologie clinique sur l’impact de l’histoire collective sur la construction individuelle, cet article propose une réflexion permettant de prendre en considération les aspects relatifs aux affiliations dans la prise en charge des jeunes patients. La première étude concerne le vécu singulier et le devenir adulte des enfants juifs cachés pendant l’Occupation. La deuxième recherche porte sur les enjeux de la construction identitaire chez les descendants des ex-rapatriés d’Indochine. La troisième montre l’impact du colonial sur la construction psychique des sujets adolescents de filiation algérienne. Tous les sujets rencontrés dans ces trois recherches souffrent d’un ébranlement de leur historicité. Le dénominateur commun réside dans le fait que la violence de l’histoire, au sens des événements de la grande histoire, conduit à une éjection des familles, des individus, de leur enveloppe culturelle, de leur place, soit des éléments similaires qui relèvent potentiellement d’une psychopathologie des affiliations. L’article propose de penser à une clinique des affiliations suggérant de considérer l’histoire collective des patients et d’accorder un espace de pensée à la transmission des héritages familiaux et collectifs.
L’exposition des enfants À la violence intrafamiliale. La transmission du trauma psychique interpersonnel des parents aux enfants
Authors: Lazaratou Hélène , Golse Bernard
Published: June 2016

Après un rappel de l’approche psychanalytique de la notion de trauma et du concept de syndrome de stress post-traumatique (notamment chez l’enfant), les auteurs proposent le concept de trauma interpersonnel, en lien fréquent avec la question des violences intrafamiliales. Une recension des différents facteurs de risque est alors esquissée : l’âge de l’enfant, le tempérament de l’enfant, l’intensité de l’événement traumatique, le type d’interactions mère-enfant, le rôle et la place du père, et la violence intrafamiliale enfin. Une approche psychodynamique et neuroscientifique du trauma interpersonnel est présentée en guise de conclusion.
Ricœur et Aristote, point de départ et terme de comparaison
Authors: Cambiano Giuseppe
Published: June 2016

L’essai explore la place et la fonction d’Aristote dans la réflexion philosophique de Ricœur à partir de deux questions : pourquoi les Grecs et pourquoi, parmi les Grecs, Aristote ? En ce qui concerne le cours de Montréal, la réponse à cette question réside en premier lieu dans le pouvoir de récapitulation que Ricœur attribue à la pensée aristotélicienne, en soulignant sa dimension constitutivement dialectique. Cette accentuation de la dimension dialectique de la philosophie d’Aristote n’amène pas Ricœur à découper sa pensée en une série de problèmes autonomes : tout au contraire un aspect décisif du cours de 1967 sur la volonté est précisément l’insertion de l’éthique d’Aristote dans le cadre plus général de sa métaphysique, qu’on retrouve aussi dans les ouvrages postérieurs. En développant ces considérations, l’essai relève l’originalité de la position de Ricœur par rapport à la « réhabilitation de la philosophie pratique » aristotélicienne, qui a eu lieu en Allemagne suite à la publication de Vérité et méthode de Gadamer.
Entre transgression et reproduction des normes de genre. Les effets paradoxaux du goût du sport sur l’orientation scolaire et professionnelle des normaliennes en sciences du sport et éducation physique
Authors: Érard Carine , Louveau Catherine
Published: June 2016

Cette contribution s’attache aux effets paradoxaux de la possession de compétences et de capital sportifs sur les parcours des normaliennes en sciences du sport et éducation physique. Elle analyse les stratégies d’orientation de ces jeunes femmes que le goût du sport, central conduit à opter pour des orientations scolaires, puis professionnelles, oscillant entre conformité et atypisme, le plus souvent en deçà de ce à quoi elles peuvent prétendre. Ces « oscillations » entre reproduction des normes de genre et détachement à l’égard des référentiels masculins de réussite expriment la tendance à la reproduction du monde social travaillée par P. Bourdieu (Bourdieu, 1994) ainsi que la possible activation de dispositions apparemment contradictoires selon les contextes et les moments d’un parcours (Lahire, 2004).
La sociologie des services
Authors: Laville Jean-Louis
Published: June 2016

Les relations de service ont mauvaise presse dans l’action sociale, comme si elles venaient pervertir les contacts avec les usagers. Ces inquiétudes coïncident avec les craintes exprimées par un auteur pionnier comme Gorz. Avec le fordisme, la société industrielle avait permis un compromis entre justice sociale et performance économique. La société de services a coïncidé avec un accroissement des inégalités engendré par le dogmatisme de marché. Mais il n’existe en la matière aucun déterminisme économique. Sur ce point, cet article se distingue des analyses de Gorz en soulignant la variété des constructions institutionnelles et organisationnelles au sein d’une société de services. Après une première partie qui établit un cadre général d’analyse, la seconde s’attache à examiner les formes concrètes que prennent les relations de services dans les services aux personnes et la grille d’analyse spécifique qui permet de saisir les enjeux dont ils sont porteurs.
Les personnels en relation de service : engagement personnel et attentes d’organisation
Authors: Ughetto Pascal
Published: June 2016

Le travail en relation de service sollicite fortement les compétences et les subjectivités des personnels concernés, qu’ils soient vus comme des professionnels à part entière ou comme de faible qualification, notamment dans le secteur médico-social. La relation de service passe de fait par l’engagement des personnes, mais celles-ci ont d’autant plus besoin que l’organisation soutienne leur action. Dans le domaine médico-social en particulier, l’organisation de l’activité individuelle et collective s’interprète comme une attente des personnes pour les aider à réguler leur engagement.
La relation de service dans l’action sociale et la nouvelle gestion publique
Authors: Bresson Maryse
Published: June 2016

Cet article interroge dans quelle mesure, et de quelle manière, la nouvelle gestion publique transforme la « relation de service » dans l’action sociale, à travers son rapprochement souhaité ou dénoncé au modèle « économique » de l’entreprise privée sur un marché (ou « quasi-marché »). La thèse défendue est celle d’un impact réel, mais complexe à la fois, sur le champ professionnel et sur le contenu des activités de « service » dans l’action sociale. Si les effets diffèrent selon les groupes professionnels et selon les territoires d’action, l’accent mis sur le modèle économique du producteur et du consommateur pourrait traduire, à l’échelle sociétale, un recul de l’idéal de construire tous ensemble le lien social et politique.
De la civilisation du travail à la société du care
Authors: Molinier Pascale
Published: June 2016

Cet article fait le point sur l’itinéraire de recherche de l’auteure dans la perspective du care qu’elle a contribué à introduire en France. Le cadre épistémologique des sciences du travail a été construit selon un point de vue androcentré qui doit être dépassé au bénéfice d’une nouvelle conceptualisation du travail à partir de l’expérience féminisée du soin non spécialisé ou care . Il s’agit d’en finir avec les positions hautes et de reconceptualiser le travail à partir de sa périphérie, de ce qui a été rendu invisible ou indigne, pour montrer qu’on ne peut pas dissocier une analyse du travail du care de celle de l’éthique du care . Dans une société globale, cela implique une décolonisation des savoirs et des points de vue.
Carbon storage of Mediterranean grasslands
Authors: Corona Piermaria , Badalamenti Emilio , Pasta Salvatore , La Mantia Tommaso
Published: June 2016

Secondary grasslands are one of the most common vegetation types worldwide. In Europe, and in the Mediterranean basin, human activities have transformed many woodlands into secondary grasslands. Despite their recognized role in the global carbon cycle, very few data are available for estimating the biomass of Mediterranean grasslands. We developed linear regression models in order to predict the biomass of two native Mediterranean grasses (Ampelodesmos mauritanicus and Hyparrhenia hirta) and an invasive alien grass (Pennisetum setaceum). Ampelodesmos mauritanicus is very common throughout the Mediterranean basin, mostly on north-facing slopes, H. hirta characterizes thermo-xeric grasslands, while P. setaceum is an alien species that is rapidly spreading along coastal areas. The measured morphometric attributes of individual plants as potential predictors were considered. The validation results corroborate the ability of the established models to predict above ground and total biomass of A. mauritanicus and P. setaceum. We also evaluated the total biomass per hectare for each species. The highest biomass per hectare was found for A. mauritanicus, whereas biomass was higher for H. hirta than for P. setaceum. The replacement of H. hirta by P. setaceum may reduce the total carbon storage in the ecosystem; however, P. setaceum allocates more resources to the roots, thus increasing the more stable and durable pool of carbon in grasslands.
Spatiotemporal variations of live coral cover in the northern Mesoamerican Reef System, Yucatan Peninsula, Mexico
Authors: Barranco Linda M. , Carriquiry José D. , Rodríguez-Zaragoza Fabián A. , Cupul-Magaña Amílcar L. , Villaescusa Julio A. , Calderón-Aguilera Luis E.
Published: June 2016

Evaluating the response of coral assemblages to different disturbances is important because variations in species composition may have consequences for ecosystem functioning due to their different functional roles in coral reefs. This study evaluates changes in diversity, structure and composition of coral assemblages of the coral reefs of two national parks in the northern sector of the Mesoamerican Barrier Reef System spanning the period from 2006 to 2012, just after the impact of two hurricanes in the area. Coral assemblages in the Cancún National Park included fewer species and lower live coral coverage ( < 15%) than those recorded in Cozumel. In the Cancún National Park, the species with the highest coral cover was Porites astreoides (more than 40% relative cover), and no significant temporal changes were observed in live coral cover and species composition. On the other hand, in the Cozumel National Park the dominant species were Agaricia agaricites, Siderastrea siderea and Porites astreoides, and the coral reefs showed an increase in live coral cover from 16% in 2006 to 29% in 2012. The dynamics of coral assemblages differed between the two parks: while there is an apparent stability in the current composition of the Cancún reefs, the Cozumel reefs show an increase in the abundance of the aforementioned dominant species. However, it is possible that the population characteristics of the species that dominate the coral assemblages in both national parks, such as those of fast population growth and of small colony size, do not entirely fulfill the main function of accretion and habitat heterogeneity, and more research is therefore needed to test this hypothesis.
Stock enhancement by hatchery-released turbot, Psetta maxima, in the southeastern Black Sea: capture, migration, growth and diet analyses
Authors: Ak Orhan , Ceylan Binnur , Aydin İlhan , Polat Hamza , Küçük Ercan , Eroğlu Oğuzhan , Kapiris Kostas
Published: June 2016

In this study, the capture, growth, migration and diet of hatchery-released turbots (Psetta maxima) were examined in the southeastern Black Sea region for six years (2009-2014). A total of 9933 turbots were marked with individual serial-numbered T-bar anchor tags and released at Trabzon, Turkey. The mean TL and weight of the released turbots were 12.91 cm (±1.25) and 35.41 g (±12.38) and the same measurements for the captured turbots were 31.17±0.86 cm and 878.08±69.47 g, respectively. A total of 2.7% (270 fishes) of the tagged individuals were captured during the study period and the age of the captured tagged fishes was between 0+ and 5+ years. Growth of the captured turbots was analytically examined. Movements of the tagged turbots were expressed as “resident” and “migratory”. Three prey groups showed the majority of forage organisms; teleost fishes, crustaceans and mollusks in the stomach of the captured turbots. The hatchery-released turbots might be used for stock enhancement due to their high growth rate and commercial value, and their relatively limited migration range.
Predicting Pollicipes pollicipes (Crustacea: Cirripedia) abundance on intertidal rocky shores of SW Portugal: a multi-scale approach based on a simple fetch-based wave exposure index
Authors: Jacinto David , Cruz Teresa
Published: June 2016

Understanding and predicting patterns of distribution and abundance of marine resources is important for conservation and management purposes in small-scale artisanal fisheries and industrial fisheries worldwide. The goose barnacle (Pollicipes pollicipes) is an important shellfish resource and its distribution is closely related to wave exposure at different spatial scales. We modelled the abundance (percent coverage) of P. pollicipes as a function of a simple wave exposure index based on fetch estimates from digitized coastlines at different spatial scales. The model accounted for 47.5% of the explained deviance and indicated that barnacle abundance increases non-linearly with wave exposure at both the smallest (metres) and largest (kilometres) spatial scales considered in this study. Distribution maps were predicted for the study region in SW Portugal. Our study suggests that the relationship between fetch-based exposure indices and P. pollicipes percent cover may be used as a simple tool for providing stakeholders with information on barnacle distribution patterns. This information may improve assessment of harvesting grounds and the dimension of exploitable areas, aiding management plans and supporting decision making on conservation, harvesting pressure and surveillance strategies for this highly appreciated and socio-economically important marine resource.
The Normative Base of Local Government
Authors: Keles Rusen
Published: June 2016

International Encyclopaedia of the Social Sciences defines local government as a public entity which is a sub-unit of a state or of a region, charged with the determination and carrying out of certain public policies in a relatively small territory. Local authorities are created to respond to certain needs of the inhabitants in local communities. These are mainly administrative, political and social factors. Leaving aside a few exceptionally small states, carrying out of all the public services from a single center is almost impossible. In order to ensure efficient performance of public services and to avoid both “appoplexy” at the center on one hand, and “anemia” in the periphery, there is a need to reduce the load on the shoulders of the central government and to take necessary measures to strengthen local authorities.
Pequi peel meal in laying hen diet
Authors: Silva Amanda Lapa , Lage Romênia Regina Pires , Faria Filho Daniel Emygdio de , Azevedo Izabela Lorena , Dias Adélio Nunes , Faria Douglas Emygdio de
Published: June 2016

This study evaluated the effect of pequi peel meal in the diet for laying hens on performance and egg quality. Hy-Line® Brown hens (n=160) aged 55 weeks with 1642±63g body weight were distributed in a completely randomized design with five treatments and four replications of eight birds each. The treatments consisted of isometric substitution of corn by pequi peel meal at 0, 2.5, 5.0, 7.5 and 10%. The performance and internal and external egg quality were evaluated. Egg production, egg mass and feed conversion worsened linearly with increasing replacement of corn with pequi peel meal, while the yolk color increased linearly. The other variables related to performance and internal and external egg quality were not significantly affected by the treatments. It can be concluded that the use of pequi peel meal replacing corn in laying hen diet does not change the internal and external egg quality, improves the pigmentation of egg yolk, and impairs performance of laying hens.
CFD Studies of the Dynamic Stall Characteristics on a Rotating Airfoil
Authors: Hutomo Go P.C.T. , Bangga Galih S.T.A. , Sasongko Herman
Published: June 2016

The periodic changes of the angles of attack in time occurring in the Darrieus turbine blade result in the significant increase of unsteady characteristics, commonly referred as dynamic stall. CFD simulations using SST k-ω turbulence model with Kato-Launder correction were used to examine the physical phenomena occurring on the sectional airfoil of the blade. The blade was modeled as an airfoil rotating about its center of rotation. The CFD calculations show remarkable differences of the forces acting on the airfoil compared with the static condition due to the traveling vortices phenomena. The generation of leading edge and trailing edge vortices as the characteristics of dynamic stall was captured accurately. This provided more detailed information on the development of dynamic stall on the Darrieus turbine blade. The analysis of the stall event was obtained by considering the insertion flow occurring near the leading edge. The interactions of the travelling vortices in the upwind as well as in the downwind phases are presented in the present manuscript, providing deeper knowledge in the dynamic stall database of vertical axis wind turbines.
Numerical Simulation of Cutting Stress Deformation in Tungsten Carbide Turning Tools
Authors: Huang Pei Hsing , Chen Jian Rong , Lu Hong Zhong
Published: June 2016

With the aim of enhancing the precision and quality of turning processes, this study investigated cutting stress and thermal deformation induced by friction between the tool and chip of a Wolfram carbide (WC) tool cutting AISI-1045 carbon steel. Analysis of cutting stress and thermal deformation using COMSOL Multiphysics software is useful for evaluating the compensation for machining errors and reducing tool wear. Three cutting loads were adopted for the simulation of the thermal conduction, and changes in temperature and the stress field. Simulation results show that thermal deformation in the tool tip is proportional to cutting speed and time. As long as the temperature of the tool remains below the quasi-steady-state temperature, the amount of deformation does not change significantly. An understanding of the thermo-mechanical coupling effect during turning can help to improve the accuracy of compensation for thermal deformation in turning tools.
Effect of Hydrogen Addition on the Characteristics of Nitrided Martensitic Stainless Steel AISI 420
Authors: Istiroyah  , Wardana I.N.G. , Santjojo D.J.
Published: June 2016

High density RF-DC plasma nitriding was carried out to harden the surface of martensitic stainless steels AISI-420. The nitriding temperature is hold at 673 K (or 400°C). Nitrogen (N2) and mixture of nitrogen (N2)-hydrogen (H2) was utilized as a plasma atmosphere. Vickers micro-hardness testing was utilized to examine the change of surface hardness and the corresponding microstructure analysis was carried out by utilizing X-Ray Diffraction (XRD) analysis. Nitrogen concentration and diffusion length were characterized by using Auger Electron Spectroscopy (AES). Hydrogen addition to nitrogen plasma resulted significant increase of hardness, nitrogen concentration and diffusion length compared to pure nitrogen plasma. The significant peak shift observed in XRD pattern of specimen nitrided with N2+H2 plasma indicates new phase formation or phase transformation. Those phenomena related to hydrogen role in nitriding process.
Simulation Savonius Wind Turbine with Multi-Deflector
Authors: Sugiharto Budi , Soeparman Sudjito , Widhiyanuriyawan Denny , Wahyudi Slamet
Published: June 2016

This paper aims to study the windmill Savonius with multi-deflector. Multi-deflector placed around the windmill, which aims to reduced negative torque to the returning blade and directing the flow of wind to the advancing blade . CFD analysis with ANSYS software. The initial conditions with variation wind speeds 3, 4, 5 and 6 m / s. The result indicated by velocity distribution at positions 00, 450, 900 and 1350. The largest static torque occurs at position 450 caused by the greater the Coand-like flow, dragging flow and overlap flow. The greater the static torque that occurs with increasing wind speeds.
Strategy in Reducing the Pace of the Greenhouse Gas Emission from the Electricity Sector in Southeast Sulawesi
Authors: Musaruddin Mustarum , Rachman Aditya , Hasbi Muhammad , Kurdin Akbar
Published: June 2016

Climate change in Indonesia is receiving a lot of concern as the nation is the top ten world largest emitter of the greenhouse gases. To relieve the concern, Indonesia had proposed to cut the gas emissions by 26 percent by 2020 from business-as-usual (BAU) levels and proposed a 41 percent emission reduction below BAU target conditional to international support for Nationally Appropriate Mitigation Actions (NAMAs). This study deals with the strategy in reducing the acceleration of the greenhouse gas emission from the power sector in Southeast Sulawesi, a developing province in Indonesia with its high electricity demand in recent years. It calculates of the annual greenhouse emission from the electricity generation mix in this province, using the projected annual electricity generation and projected power plants installed under the power supply business plan (RPUTL) of the state electricity company (PLN Indonesia) and the lifecycle carbon dioxide emission equivalent. Some scenarios are proposed, by varying the power generation mix in the case of inclusion and exclusion the projected clean renewable powers in the year of 2020 and 2022. The result shows that in 2020, by the inclusion of the projected clean renewable powers in the power generation mix (around 5 percent), it can reduce the annual greenhouse gas emission almost 6 percent. In 2022, by maintaining the amount of the power generation from fossil sources as those in 2020 and maximizing the use of the clean powers in the electricity generation mix (around 20 percent), under the power provision plan, it can reduce the emission by 26 percent.
Inverse Kinematics Modelling and Simulation for Upper Case Writing Robot Control Using ANFIS
Authors: Syamlan Adlina Taufik , Pramujati Bambang , Nurhadi Hendro
Published: June 2016

Robotics has lots of use in the industrial world and has lots of development since the industrial revolution, due to its qualities of high precision and accuracy. This paper is designed to display the qualities in a form of a writing robot. The aim of this study is to construct the system based on data gathered and to develop the control system based on the model. There are four aspects studied for this project, namely image processing, character recognition, image properties extraction and inverse kinematics. This paper served as discussion in modelling the robotic arm used for writing robot and generating theta for end effector position. Training data are generated through meshgrid, which is the fed through anfis.
Effect of Impeller Condition on Blower Performance, Case Study: Impeller of K-2201 in Pt. Pertamina RU III
Authors: Budiman Hafid
Published: June 2016

The performance of blower depends on impeller condition. This paper is to discuss the open face impeller condition related to performance based on performance curve provided by the manufacturer. The impeller condition is observed under three different conditions. The first condition is that the impeller area is covered by 3 mm thick of fouling. The second condition is that there is a 1 mm of rubbing on the vane and the third condition is the impeller after being repaired. The datas are taken by the actual operation condition. The observed data is then calculated and plotted on OEM performance curve. The result shows that the first condition has the lowest performance; the produced head is 47% lower than the OEM’s.
Global Buckling of Frames with Laced Compression Members
Authors: Kovac Michal , Vanik Zsuzsanna
Published: June 2016

The planar frames whose members consist of a laced built-up members are often used in civil engineering practice. For chords of these structures the 1st order theory internal forces and the assessment by equivalent column method are mostly used. In the equivalent column method the buckling length according to the global buckling mode of the structures should be used. If the distance between neighboring nodes is used as the buckling length of the chord, which is the common case, the second order effects with only the bow imperfections between nodes are taken into account in the equivalent column method. For frames sensitive to buckling in a sway mode the second order effects on structures with initial sway imperfection should be taken into account. Therefore, also in frames with the laced compression columns, where the effects of additional sway deformation cause additional normal forces in the chords, the sway imperfection should be applied and the second order in frame analysis should be performed to check these additive forces. This paper deals with the simplified procedure how to evaluate additive forces due to second order effects on the structure with the global sway imperfection.
Experimental Research of Destruction of Internal Field of a Slab-Column Structure Caused by Overload
Authors: Wieczorek Mirosław
Published: June 2016

Slab-column structures used in design and construction work are one of the typical kinds of structures used in building industry. The emergence of factors unexpected at the designing stage can lead to collapse of the structures. The paper presents experimental investigations of the central field of the continuous floor. The research was conducted on a nine-field slab with dimensions 9300×9300×100 mm. The aim of the research was to observe the behaviour of the experimental model in the time when excessive load is exerted. The model was prepared using high ductility steel (εuk>7.5%) in order to determine the possibility to induce tensile membrane action. The paper presents basic geometrical and material data, the research methodology, the description of the system of loading, the description of the measurement system, and the obtained measurement results. The last part summarizes the conducted investigations.
Time-Dependent Response of Mass Continuous Solid Phase Media by Integral Form of Constitutive Equations - Mathematical Modeling
Authors: Sumec Jozef , Hrustinec Lubos
Published: June 2016

Mathematical modeling of boundary value problems in linear theory of viscoelasticity. Definitions and basic principles in the mathematical modeling theory. Constitutive functional and its transformation into a form of Stieltjes integral. Application of theory of algebraic sets and corresponding subsets. Riesz theorem of representation and its application for derivation of constitutive equations. Integral operator forms of stress-strain relationships for a solid-phase continuous media.
Reinforcement Corrosion and its Effect on Bond Behaviour
Authors: Holly Ivan , Gajdosova Katarina , Sonnenschein Robert
Published: June 2016

The corrosion of reinforcement is one of the predominant reasons for loss of reliability of reinforced concrete structures. This has an impact on safety, serviceability and durability of the structure. The corrosion of steel in concrete reduces the cross sectional area of the reinforcement and decreases the bond between reinforcement and concrete. Corrosion products have a higher volume than steel, which produces internal stresses that lead to the cracking and spalling of the concrete cover. Additionally, corrosion of steel changes the mechanical properties of reinforcement. In this paper, the relationship between crack widths and bond strength between reinforcement and concrete was investigated.
Laboratory Tests of RC Beams Strengthened Against Flexure and Shear by the Use of SRP Overlays
Authors: Krzywon Rafal
Published: June 2016

Mechanical properties of the laminates reinforced with steel wires based on UHTS (Ultra High Tensile Strength) steel are only slightly worse than popular carbon strips. Thanks to competitive price they become popular strengthening material for concrete structures. The paper presents the results of laboratory tests of beams not efficiently reinforced in shear zone and strengthened along its side surfaces by the L-type overlays made of SRP tape. In addition, in order to ensure a high load-bearing capacity, beams were strengthened against bending. The effectiveness of reinforcement in a comparative test of unreinforced model was analyzed including ultimate capacity, deflection, failure model and strains. The results were used to evaluate the efficiency of SRP shear strengthening.
Numerical Analysis of Deformations of the Shallow Square Foundations with Variable Relative Stiffness
Authors: Hrustinec Lubos , Sumec Jozef
Published: June 2016

The paper deals with numerical analysis of deformations and relative displacements (relative settlement, relative deflection and flexibility) of the shallow square foundations depending on the variable relative stiffness. For solution of the problem finite element method was used with theoretical assumptions of the linearly elastic half-space. Foundation-subsoil contact was modelled by one-directional and bi-directional bond effect. Results of the solution are presented by graphical forms.
Stability Analysis of an Imperfect Slender Web Subjected to the Shear Load
Authors: Psotný Martin
Published: June 2016

The stability analysis of an imperfect slender web subjected to the shearing load is presented, a specialized code based on FEM has been created. The nonlinear finite element method equations are derived from the variational principle of minimum of total potential energy. To obtain the nonlinear equilibrium paths, the Newton-Raphson iteration algorithm is used. Corresponding levels of the total potential energy are defined. The peculiarities of the effects of the initial imperfections are investigated. Special attention is paid to the influence of imperfections on the post-critical buckling mode. Obtained results are compared with those gained using ANSYS system.
Bearing Capacity of a Scarf Joint
Authors: Fajman Petr , Maca Jiří
Published: June 2016

The bearing capacity of a scarf joint depends on the length of the joint and the type of connection. It is possible to use circular bolts or squared dowels. Both connection tools used in the repairs of historic timber structures are made of wood according to the requirements of the heritage authority.
Cable-Membrane Structures - Numerical Analysis and Practical Application
Authors: Huttner Miloš , Maca Jiří , Fajman Petr
Published: June 2016

This paper presents a practical application of form-finding process of cable-membrane structures. The dynamic relaxation method with kinetic damping is used as the computation method for numerical analysis. A brief description of the construction, a description of the models and the way of solving tasks will be introduced. The correct operation of the implemented algorithm will be compared with a commercial program.
Propagation Algorithm for Solving Optimal Reactive Power Problem
Authors: Lenin K. , Ravindhranath Reddy B. , Suryakalavathi M.
Published: June 2016

This paper presents a nature inspired heuristic optimization algorithm based on lightning progression called the propagation algorithm (PA) to solve optimal reactive power problem. It is from the imitated natural phenomenon of lightning and the procedure of step frontrunner propagation using the theory of fast particles. Three particle kinds are established to distinguish the transition particles that produce the first step frontrunner population, the space particles that attempt to turn out to be the frontrunner, and the prime particle that epitomize the particle thrilled from best positioned step frontrunner. The proposed PA has been tested in standard IEEE 30,57,118 bus test systems and simulation results show clearly about the better performance of the proposed algorithm in reducing the real power loss with control variables within the limits.
Design Quality Cost System through Fault Tree Analysis (FTA) for FNB Cast Iron Foundry Industry
Authors: Acharya Shailee G. , Vadher J.A.
Published: June 2016

The approach taken by this paper is expected to motivate the Furan No Bake (FNB) sand casting foundries to use a standardized system of classification to show unwanted casting defects for highly effective failure analysis. It will also motivate foundries to develop new systems to quantify process parameters relating to the defects. Any reduction in the scrap and rework also highly influences the impact on environment of industry. This paper covers the various aspects of a systematic approach for understanding and quality cost system development in cast iron foundries through Fault Tree Analysis (FTA).
Suitability of Nigerian Bentonite in Drilling Fluid Formulation
Authors: Oyedoh Eghe , Odumugbo Charles , Ebewele Eboseremen Osemenkhian
Published: June 2016

The oil production industry in Nigeria operates both onshore and more recently offshore in the coastal areas located in the oil-rich Niger-Delta. Unfortunately, the drilling mud additives currently used in the country are all imported and at huge foreign exchange costs. Therefore the objective of the current effort is development of drilling fluid from locally sourced mud additives for drilling operations. Various rheological and filtration tests were carried out on both unbeneficiated and beneficiated local clay from Afuze, Nigeria using a six-speed Rheometer and API filter press respectively. Beneficiation involved the addition of sodium carbonate, caustic soda and starch to the mud formulations.Clay concentrations were varied from 20g/350ml to 60g/350ml. The test results showed that free swell volume (FSV) increased from with clay concentration with the optimum values observed at 60g/350ml. The filtrate loss of 63ml, filter cake thickness of 6m, yield point of 7cp and plastic viscosity of 1cp values of Afuze clay did not satisfy API specification of 15ml, 2m, 24cp and 8cp respectively at any tested concentration. Likewise Afuze clay did not display gel strength (10 seconds and 10 minutes of 29 and 34 respectively) suitable for bringing cuttings up from the hole. However, improvements in its rheological and filtration properties as well as free swell volume were observed with the beneficiated Afuze clay at clay concentrations of 20, 30, 40, 50, 60g/350ml when beneficiated with starch concentrations of 1g and 0.5g, sodium carbonate of 2g and 1g and caustic soda of 0.25g. Beneficiated Afuze clay displayed gel strengths (10 seconds and 10 minutes of 98 and 140 respectively) suitable for bringing cuttings up from the hole with optimum values observed at 60g/350ml.
An organisational coherence model to maintain employee contributions during organisational crises
Authors: Pelser Hendrik J. , Bosch Anita , Schurink Willem
Published: June 2016

Orientation: Crises that threaten an organisation’s continued existence cannot be seen in isolation when considering the perception of threats to individual job security. These threats often go hand in hand with employee panic.Research purpose: The aim of this study was to establish a model to assist organisations in managing employee emotionality and panic during times of crisis.Motivation for the study: Environmental crises threaten organisations’ existence, threatening employees’ livelihood and resulting in employee panic. Panic reduces employees’ contributions. Organisations that are successful harness employee contributions at all times.Research design, approach, and method: A modernist qualitative research methodology was adopted, which included a case study as research strategy, purposive sampling to select 12 research participants, semi-structured interviews for data gathering, focus groups for data verification, and the use of grounded theory for data analysis.Main findings: An organisation’s ability to manage employee panic depends on the relationship between the foundational elements of authentic leadership, crisis readiness, resilience practices, versatile and committed talent, strategic management, quality management, and coherence actions taken during the crisis, which include crisis leadership, ongoing visible communication, mindfulness, work flexibility, and decisions based on the greatest financial need and social support.Practical/managerial implications: The study provides a best-practice option for managing emotionality during crises for the case organisation and other organisations within the vehicle components and other manufacturing industries.Contribution/value-add: The Coherence Hexagons Model is presented as a tool to manage employee panic during crisis.Keywords: crisis management; employee emotionality; employee panic; authentic leadership; talent management
Species-Specific Associations Between Soil-Transmitted Helminths and Micronutrients in Vietnamese Schoolchildren
Authors: de Gier Brechje , Nga Tran Thuy , Winichagoon Pattanee , Dijkhuizen Marjoleine A. , Khan Nguyen Cong , van de Bor Margot , Ponce Maiza Campos , Polman Katja , Wieringa Frank T.
Published: June 2016

Soil-transmitted helminth (STH) infections and micronutrient deficiencies are closely related and often coexist among low-income populations. We studied the association between infections with specific STH species and micronutrient status in rural Vietnamese schoolchildren. Children (N = 510) aged 6–9 years were recruited from two primary schools. STH infections were determined in stool samples. Hemoglobin, ferritin, retinol, and zinc were measured in blood samples, as well as C-reactive protein to control for inflammation. Iodine excretion was measured in urine. Associations of single and multiple infections with Ascaris lumbricoides, Trichuris trichiura, and hookworm with micronutrient status (hemoglobin, plasma ferritin, retinol, zinc, and urinary iodine) were estimated by multiple regression analysis. Ascaris infections showed a specific and intensity-dependent negative association with vitamin A. Trichuris and hookworm infections were associated with lower hemoglobin concentration, but not with plasma ferritin. Trichuris-infected children had zinc deficiency less often than uninfected children. In conclusion, our study shows species-specific associations between STH infections and micronutrient status in children. The different life cycles of STH species might have specific effects on the absorption or loss of specific micronutrients. Tailor-made combinations of deworming and nutritional interventions may be needed to improve child health and nutrition.
Enteroviruses and Rhinoviruses: Molecular Epidemiology of the Most Influenza-Like Illness Associated Viruses in Senegal
Authors: Fall Amary , Dia Ndongo , Kébé Ousmane , Sarr Fatoumata Diene , Kiori Davy E. , Cissé El Hadj Abdoul Khadir , Sy Sara , Goudiaby Deborah , Richard Vincent , Diop Ousmane Madiagne , Niang Mbayame Ndiaye
Published: June 2016

Different viruses have been identified as etiologic agents of respiratory tract infections, including severe cases. Among these, human rhinoviruses (HRVs) and human enteroviruses (HEVs) are recognized as leading causes. The present study describes the molecular epidemiology of HRVs and HEVs in Senegal over a 3-year surveillance period. From January 2012 to December 2014, nasopharyngeal and oropharyngeal swabs specimen were collected from patients with influenza-like illness (ILI). A real-time reverse transcription polymerase chain reaction was performed for HRV and HEV detection using the RV16 kit. Two regions were targeted for the molecular characterization of RVs: 5′ untranslated region (5′UTR) and viral protein 4/viral protein 2 (VP4/VP2) transition region. For enteroviruses (EVs) phylogeny, VP1 gene was targeted. A total of 4,194 samples were collected. Children up to 5 years accounted for 52.9%. Among them, 1,415 (33.7%) were positive for HRV, 857 (20.4%) for HEV, and 437 cases of dual infections HRV/HEV. HRVs and HEVs were identified significantly in children aged 5 years or less. Only cough and vomiting signs were observed with significant association with viral infection. Both viruses co-circulated all year long with a marked increase of activity during rainy and cold period. All HRV types circulate in Senegal. HRV-A and C groups were the most common. HEV serotyping identified coxsackie B viruses (CBV) only. VP1 region revealed different CBV (CBV1, CBV2, CBV3, CBV4, and CBV5), echoviruses, coxsackieviruses A4–like strains and a poliovirus 2. The results suggest strong year-round respiratory picornavirus activity in children up to 5 years of age. Molecular studies identified a wide variety of RVs along with diverse EVs in samples from patients with ILI.
Acceptance and Use of Mobile Technology for Health Self-Monitoring in Lung Transplant Recipients during the First Year Post-Transplantation
Authors: Sereika Susan , DeVito Dabbs Annette , Handler Steven , Schlenk Elizabeth , Jiang Yun
Published: June 2016

To describe lung transplant recipients (LTRs’) acceptance and use of mobile technology for health self-monitoring during the first year post-transplantation, and explore correlates of the use of technology in the 0 to 2, >2 to ≤6, >6 to ≤12, and 0 to 12 months.

Secondary analysis of data from 96 LTR assigned to use Pocket PATH®, a smartphone application, for daily health self-monitoring in a randomized controlled trial. Use of Pocket PATH was categorized as low, moderate, and high use. Proportional odds models for ordinal logistic regression were employed to explore correlates of use of technology.

LTR reported high acceptance of Pocket PATH at baseline. However, acceptance was not associated with actual use over the 12 months (p=0.45∼0.96). Actual use decreased across time intervals (p<0.001). Increased self-care agency was associated with the increased odds of higher use in women (p=0.03) and those less satisfied with technology training (p=0.02) in the first 2 months. Higher use from >2 to ≤6 months was associated with greater satisfaction with technology training (OR=3.37, p=0.01) and shorter length of hospital stay (OR=0.98, p=0.02). Higher use from >6 to ≤12 months was associated with older age (OR=1.05, p=0.02), lower psychological distress (OR=0.43, p=0.02), and better physical functioning (OR=1.09, p=0.01). Higher use over 12 months was also associated with older age (OR=1.05, p=0.007), better physical functioning (OR=1.13, p=0.001), and greater satisfaction with technology training (OR=3.05, p=0.02).

Correlates were different for short- and long-term use of mobile technology for health self-monitoring in the first year post-transplantation. It is important to follow up with LTR with longer hospital stay, poor physical functioning, and psychological distress, providing ongoing education to improve their long-term use of technology for health self-monitoring.

Citation: Jiang Y, Sereika SM, DeVito Dabbs A, Handler SM, Schlenk EA. Acceptance and use of mobile technology for health self-monitoring in lung transplant recipients during the first year post-transplantation.
Does the Explanatory Power of the OLI Approach Differ Among Sectors and Business Functions? Evidence from Firm-level Data
Authors: Arvanitis Spyros , Hollenstein Heinz , Stucki Tobias
Published: June 2016

As services and goods differ with respect to important characteristics, one may expect that the determinants of internationalisation are not identical for services and manufacturing. Surprisingly, there is practically no firm-level research contrasting the two sectors in this respect. To fill this gap, the authors aim at identifying for the two sectors the determinants of a firm’s propensity to engage in exports or FDI as well as the factors determining a firm’s FDI strategy in terms of business functions. They find that an OLI-based model is well suited for explaining the propensity to go international as well as the differences between specific forms of FDI in terms of business functions both for manufacturing and services. As expected, the explanatory power of the OLI approach is stronger for manufacturing than service activities.