bluuebunny/crossref_metadata_2025 huggingface dataset:
El psicoanálisis como sistema de creencias: un bosquejo de programa de investigación
Authors: Plotkin Mariano Ben
Published: December 2017

Resumen Este artículo plantea una agenda de investigación sobre el establecimiento de las culturas psi en América Latina. Comienza analizando algunos debates sobre la naturaleza del psicoanálisis ubicado entre las ciencias, la filosofía, y el sentido común. Se argumenta que es necesario problematizar el lugar de las culturas psi como emergentes de la modernidad en un espacio cultural como América Latina, donde el concepto mismo de modernidad es bien diferente del de los países centrales.
Effects of fineness on viscoelasticity of microfine cement-based grouts with fly ash, silica fume and superplasticiser
Authors: Sha Fei , Li Shucai , Liu Rentai , Li Zhaofeng , Zhang Qingsong
Published: December 2017

In geotechnical engineering, microfine cement-based grouts (MCGs) are used to ensure correct grouting of microcracks, medium-fine sands and so on. To determine the viscoelastic behaviour of MCG comprehensively and enhance its injectability, the viscosity variation characteristics of MCG suspensions need to be known. In this research, the new test method of ‘static viscosity’ was adopted and the synergistic effects of microfine cement (MC) fineness, water/solids (w/s) ratio and contents of microfine fly ash (MFA), silica fume (SF) and superplasticiser (SP) on the static viscosity of MCGs were studied comprehensively. The maximum MCG grain size was in the range 20–35 μm, the w/s ratio was varied from 0·8 to 3·0 and the contents of MFA, SF and SP were varied from 0 to 50%, 5 to 15% and 0 to 3·0%, respectively. The viscoelastic behaviours of the MCGs were determined by analysing the viscosity, hydration temperature, spreading ability and flowability of suspensions under different conditions. MCGs composed of blends of MC + MFA, MC + SF and MC + MFA + SF, with low initial viscosity and desirable viscoelastic properties, are discussed and recommended. The optimised viscoelastic behaviour, desirable spreading ability and flowability of MCGs can ensure their injectability, grouting effects and substitution for chemical solution in grouting applications, especially for small voids and microcracks.
Analysis of vertically loaded jet-grout-pile-strengthened piles of expanded cross-section
Authors: Ren Lian Wei , Guo Wei Dong , Deng Yue Bao
Published: December 2017

Piles are often installed together with jet grouting – to form a jet-grout-pile-strengthened pile – in soft subsoil regions of China to increase bearing capacity and reduce project costs. To facilitate their design, this paper presents a load-transfer approach to model the non-linear behaviour of such piles with expanded cross-sections. Three interface models are introduced to describe the interactions between soil–cement, the core pile and natural soil. Force equilibrium and displacement compatibility expressions are established and implemented through a purposely designed spreadsheet. The approach was verified by loading tests on two well-instrumented piles. A parametric study shows that having one to three segments of thick soil–cement enables a 20–60% gain in bearing capacity and a 43–55% reduction in head settlement compared with the core pile itself, which is slightly affected by the soil–cement modulus and stiffness ratio. It is cost-effective in practice to adopt two to four segments of soil–cement with a thickness of 0·1 m to a radius of core pile, an ultimate compressive strength of the soil–cement of over 2 MPa and a stiffness ratio of over 100 to reduce settlement. Finally, a simple equation is proposed to estimate the ultimate bearing capacity of such piles, which was verified by loading tests on piles in three case histories.
Understanding the critical success factors for delivery of megaprojects in Colombia
Authors: Cepeda D M , Sohail M , Ogunlowo O O
Published: December 2017

By their very nature, megaprojects have significant short- and longer-term impacts on the socio-economic, technical, environmental and political landscapes of the host country, but many are delivered with time and cost overruns and sometimes with quality discrepancies. This paper examines the critical success factors for megaprojects in Colombia – from the project definition stage to successful handover – from the perspective of professionals involved in the delivery of megaprojects in that country. It applies a mixed approach of quantitative and qualitative data collection and analysis to rank 34 factors identified in literature sources as being critical to the success of megaprojects. Analysis shows that inadequate information at the tender stage, design changes during the construction phase and limited availability and supply of materials have had a major negative influence on the delivery of megaprojects in Colombia. In contrast, adverse weather conditions and lack of prior experience with similar projects have had the least impact. This paper recommends approaches to mitigate the risks associated with the factors investigated.
Dylanwad y Profion Darllen Cenedlaethol ar Addysgu a Dysgu Strategaethau Darllen – Astudiaeth Achos mewn Un Ysgol Uwchradd Gymraeg
Authors: Nicholas Jane
Published: December 2017

In 2013, in the face of concern about low literacy standards, standardised reading tests for 7–14-year-olds became statutory in Wales. International research literature shows polarised views about the effect of high stakes tests on education standards, while suggesting that a
combination of teaching reading strategies, offering feedback on performance and the promotion of reading, increases pupils' self-efficacy and confidence levels. By means of a case study, this paper considers the influence of the tests on the teaching and learning of reading strategies and
on pupils' attitudes towards reading. A sample of 302 of Year 7 and Year 9 pupils was surveyed, together with focus groups with a sub-sample and interviews with key staff. While pupils showed awareness of a variety of reading strategies, and reported high levels of confidence in preparation
for the tests, there were mixed reactions towards specific whole-school literacy sessions. Generally, older pupils' attitudes to reading were more negative. Furthermore, an emphasis on accountability had led the school to focus on test preparation at the expense of using the results diagnostically.
McLuhan and the Arts After the Speculative Turn
Authors: Lauder Adam , McLeod Rogers Jacqueline
Published: December 2017

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L(a)ying with Marshall McLuhan: Media Theory as Hoax Art
Authors: Svec Henry Adam
Published: December 2017

Abstract | This artist-response essay examines some ethical and aesthetic contours of media-theoretical hoaxes (and of a hoaxing media theory). I accomplish this through an exploratory reflection upon my own experiences and dilemmas as a media hoax artist, a vocation that has been influenced by Harold Adams Innis’s “authentic” scholarly persona as well as by McLuhan’s “probing” methods. Whereas recent work in the field of hoax art has tended to rely on the eventual text-bound revelation of the truth of the situation, my McLuhanite method aims rather towards magic and mediation.Résumé | Cet essai et réponse d’artiste examine quelques contours éthiques et esthétiques des canulars médiatiques (et d’une théorie des canulars médiatiques). J’accomplis cela à travers une réflexion exploratoire sur mes propres expériences et dilemmes en tant qu’artiste de canular médiatiques, une vocation qui a été influencée par la personnalité académique « authentique » d’Harold Adams Innis ainsi que par les méthodes « exploratoires » de McLuhan. Alors que les travaux récents dans le domaine de l’art du canular ont eu tendance à dépendre de la révélation éventuelle de la vérité de la situation, ma méthode McLuhanite s’appuie plutôt sur la magie et la médiation.
Our World: McLuhan’s Idea of Globalized Presence as the Prehistory of Computational Temporality
Authors: Salemy Mohammad
Published: December 2017

Abstract | The 1960s was the decade in which satellite technology was introduced to the television world via a series of live broadcasts. With the active participation of 46 stations, BBC’s Our World (1967) was undoubtedly the most globally far-reaching of them all. Conceived around Marshall McLuhan’s concept of the communicative global village, the special program took full advantage of satellites to reach a truly global audience and use the occasion to announce the dawn of globalization and what living in a small and thoroughly connected world would mean for its inhabitants. Prominent in the broadcast was the program’s Canadian segment, which aired right after the introduction and included an interview with Marshal McLuhan in the Canadian Broadcasting Corporation’s studio in Toronto. This paper considers McLuhan’s contributions both to the ideas and practices of planetary communication as well as his direct involvement with the production of Our World. I demonstrate how McLuhan’s understanding of the co-constitution of time and space not only set live television broadcasts apart from other temporal media but that, through these spatiotemporal affinities, One World can be considered to belong to the prehistory of our contemporary telecomputational technologies such as the Internet and mobile phones.Résumé | Les années 1960 ont été la décennie où la technologie satellitaire a été introduite dans le monde de la télévision par le biais d’une série d’émissions en direct. Avec la participation active de 46 stations, Our World (1967) de la BBC a été sans aucun doute été l’émission la plus diffusée à travers le monde. Conçu autour du concept du village planétaire de communication de Marshall McLuhan, le programme spécial a profité pleinement des satellites pour atteindre un public véritablement mondial et a saisi l’occasion pour annoncer l’aube de la mondialisation et ce que vivre dans un monde petit et complètement connecté signifierait pour ses habitants. Le segment canadien du programme, diffusé juste après l’introduction, a été mis en vedette et comprenait une entrevue avec Marshall McLuhan dans le studio de la Société Radio-Canada à Toronto. Cet article considère les contributions de McLuhan aux idées et aux pratiques de la communication planétaire, mais aussi son implication directe dans la production d’Our World. Je démontre comment la compréhension de McLuhan de la co-constitution du temps et de l’espace non seulement sépare les émissions télévisées en direct des autres médias temporels, mais aussi, par ces affinités spatio-temporelles, comment One World peut appartenir à la préhistoire de nos technologies de télécommunication contemporaines comme Internet et les téléphones mobiles.
Sensitivity analysis of the model
Authors: Glagolev M V
Published: December 2017

Данная работа представляет собой адаптированную к формату журнальной статьи лекцию курса «Математическое моделирование биологических процессов», читаемого автором. В ней рассматриваются методы анализа чувствительности модели к изменениям ее параметров; обсуждаются различные количественные характеристики чувствительности, используемые теми или иными исследователями. В основном, в статье рассмотрен локальный анализ чувствительности, но в заключительном разделе дается понятие и о глобальном анализе. Кроме теоретических положений подробно рассмотрен конкретный пример анализа математической модели микробиологической кинетики. Показано как анализ чувствительности позволяет, во-первых, оптимальным образом спланировать эксперименты по определению параметров модели и, во-вторых, существенно упростить модель (если это возможно).
Student Philanthropy: Connecting BSW Students, Schools of Social Work, and Communities
Authors: Kagotho Njeri , McClendon Jennifer , Lane Shannon
Published: December 2017

University–community partnerships provide key opportunities for schools of social work to establish mutually beneficial collaborations with the communities that host them. This article explores how a student-led philanthropic initiative can expand and strengthen these partnerships. A new student philanthropy model at an undergraduate social work program that has been implemented over the past 4 years is described. Community agencies were surveyed to evaluate this program's impression on the community. Results point to the program's potential for supporting and strengthening university–community partnerships.
The Moral Experiences of Children Living in Poverty: A Focused Ethnography
Authors: Montreuil Marjorie , Saint-Laurent Olivia , Carnevale Franco A.
Published: December 2017

A focused ethnography was conducted in an after-school academic support program serving vulnerable populations in Montreal, Quebec, Canada. The aim of this study was to explore the moral experiences of children living in poverty to inform on their daily experiences and moral lives. Our results highlighted that these children, who were experiencing economic hardship and/or social isolation, faced various social barriers, such as stigmatization, family isolation, and linguistic challenges for new immigrant children. As active agents, they navigated the challenges they encountered with help from the program. 
Factors affecting the use and non-use of Learning Management Systems (LMS) by academic staff
Authors: Coleman Emma , Mtshazi Sive
Published: December 2017

The purpose of this research was to identify the factors that affect the use and non-use of a Learning Management System (LMS) by lecturers in a South African university. This research involved a qualitative case-study of lecturers, and utilised questionnaires for data collection. Findings showed that both internal and external factors are important in shaping use of LMS. Contrary to the literature, high levels of use were found amongst the respondents with a high perception of ease of use and usefulness. However, due to issues such as lack of ongoing training, more advanced features of the technology were not being utilised. It also emerged that patterns of use were affected by pre-existing practices and that the perception of the system was affected by differences to the previous system. This study contributed to literature by providing in-depth analysis of why certain factors affect lectures’ decision regarding LMS usage. Future research should consider the use of extended features of LMSs and the prior practices and systems used within the context of study to understand how they affect use or non-use of an LMS. This study contributes to practice through promoting understanding of why there is underuse of extended features of an LMS among lecturers.
A multicriteria decision aid for evaluating the competitiveness of tourist destinations in the Northwest of Mexico
Authors: León Santiesteban Martín , Leyva López Juan Carlos
Published: December 2017

This work deals with the problem of comparing the competitiveness of tourist destinations as a multicriteria ranking problem. Comparing tourist destinations is a complex problema because they present wide heterogeneity between them. The Crounch-Ritchie model is used as the main approach for analyzing tourist the competitiveness of tourist destinations. Thereby, we structure the problem as a multicriteria ranking problem for comparing and ranking the destinations with highest competitiveness as the preference direction. For this project, we use the main tourist destinations in the Northwest of Mexico as case study. The ranking of tourist destination is based in their competitiveness, however with the multicriteria analysis proposed, it is possible to use any particular group of the attributes to choose a coherent family of criteria. This process is performed in two steps, the first one uses the ELECTRE III method to construct a valued outranking relation and the second one, a multi-objective evolutionary algorithm for exploiting those relations, and generate the ranking of destinations.
COMPORTAMIENTO AGRONÓMICO Y COMPOSICIÓN QUÍMICA DE TRES VARIEDADES DE Brachiaria EN DIFERENTES EDADES DE COSECHA
Authors: Avellaneda Cevallos Juan Humberto , Romero Garaicoa Diego , Pinargote Mendoza Edgar , Espinoza Guerra Italo , Montañez Valdez Oziel Dante , Luna Murillo Ricardo , Zambrano Montes Samir , Cabezas Guerrero Fernando , Quintana Zamora Jorge Gustavo , Vanegas Ruiz Jorge
Published: December 2017

Se evaluó el efecto de la edad (E) y la variedad (V) sobre: altura de planta (AP) (cm), longitud de raíz (cm) (LR), número de tallos (NT) y hojas (NH), biomasa forrajera (BF) (kg MS ha-1), relación hoja tallo (en no y peso), digestibilidad in situ DISMS, y composición química de brachiaria decumbens, brizantha y pasto mulato (ruzizienzis 44-6 x brizantha cv. Marandú), cortados a los 28, 56, 84 y 112 d. Se empleó un diseño de parcelas divididas. La parcela grande fue la variedad de brachiaria, y la parcela pequeña la edad de cosecha. La AP, no presentó diferencias (p>0.05) entre variedades. La LR presentó diferencia (p<0.05) entre variedad, la mejor resultó el pasto mulato para la edad de 28, 56, 84 y 112 d. El mayor NT a los 56, 84 y 112 d, y NH por planta hasta los 84 d lo obtuvo mulato. La biomasa (kg MS ha-1) no presentó diferencias significativas (p>0.05). El pasto mulato presentó la mejor relación hoja/tallo, a los 28, 56 y 84 d y el brizantha a los 112 d (p<0.05). La digestibilidad in situ disminuyó al aumentar la edad. El mayor porcentaje de MS y fibra cruda, y menor proteína se presentó a los 112 d.
MODELO DE PONTO CRÍTICO PARA ESTIMAR DANOS CAUSADOS PELA MELA NA CULTURA DO FEIJOEIRO
Authors: Garcés Fiallos Felipe Rafael
Published: December 2017

No Equador, o feijão (Phaseolus vulgaris L.) é consumido quase pela totalidade da população, sendo também fonte de renda para pequenos e médios produtores. Uma das doenças mais importantes é a mela, ou podridão radicular de rizoctonia, causada pelo fungo necrotrófico Rhizoctonia solani Khun (teleomorfo Thanatephorus cucumeris Frank). Objetivou-se determinar a redução no rendimento de grãos causados pela infecção natural da mela, em diferentes cultivares de feijão, na safra agrícola 2010, no município de Quevedo, Equador. O delineamento experimental foi em blocos casualizados, com sete tratamentos e quatro repetições. O gradiente da intensidade da doença foi gerado pela variabilidade genética entre cultivares de feijoeiro. A avaliação de severidade (% de área foliar necrosada) da doença foi determinada no estádio fenológico R7 (desenvolvimento de legume). A colheita foi realizada em aos 124 dias pós-semeadura, para quantificação do rendimento. A equação da função de dano obtida foi R = 4,257.50 – 33.16 S, onde R é o rendimento de grãos e S a severidade (%) da doença, com R2 = 0.82 e p<0.0001. A equação resultante foi normalizada para 1,000 kg, sendo esta R = 1,000.0 – 7.79 S. Concluiu-se que a equação gerada da função de dano pode ser utilizada no cálculo do limiar de dano econômico (LDE), uma alternativa racional indicadora do momento para a aplicação de controle químico da mela em cultivares suscetíveis, mantendo a rentabilidade do agricultor e ser amigável com o meio ambiente.
PROPAGACIÓN DE Tabebuia Donnell-Smithii Rose (GUAYACÁN BLANCO) UTILIZANDO HORMONAS DE ENRAIZAMIENTO
Authors: Carranza Patiño Mercedes Susana , Escobar Troya Ariel , Nieto Rodríguez José Enrique , Morante Carriel Jaime , Cevallos Falquez Orly Fernando , Cruz Ibarra Omar , Saucedo Aguiar Silvia Gicela , Reyes Chancay Ximena
Published: December 2017

Resumen
La amplia distribución y abundancia natural de Tabebuia donnell-smithii (guayacán blanco) se ha visto reducida por la tala excesiva de los árboles, lo que ha ocasionado la desaparición de genotipos valiosos así como disminución de las poblaciones naturales, existiendo además carencia de alternativas de producción de plantas a gran escala. Se hace por tanto necesario orientar la investigación a establecer una técnica para la propagación vegetativa de guayacán blanco utilizando fitorreguladores. La metodología se basó en el uso de las hormonas de enraizamiento ácido naftalenacético (ANA) y ácido indolbutírico (AIB), en concentraciones de 0, 1,500 y 2,000 mg kg-1 en sustratos turba y arena. Las yemas apicales fueron colocadas en una cámara húmeda en condiciones de invernadero. Se aplicó un Diseño Completamente al Azar (DCA) en un arreglo factorial 2 sustratos x 3 dosis de hormona ANA x 3 dosis de hormona AIB, con cuatro repeticiones y cuatro unidades de observación. A los 45 días se evaluó el porcentaje de sobrevivencia y el enraizamiento, el número de raíces, la longitud de la raíz mayor, el número de brotes, la longitud de brotes, y el vigor. Los resultados no mostraron diferencias significativas entre los distintos tratamientos para todas las variables, sin embargo para el efecto simple e interacciones se observó diferencias para las variables evaluadas, siendo el mejor sustrato turba y las concentraciones óptimas de auxinas de 0 a 1,500 mg Kg-1. Se concluye que el guayacán blanco es una especie de fácil enraizamiento, ya que con y sin la aplicación de hormonas enraizadoras en el sustrato turba y arena se logró la obtención de clones, disminuyendo el tiempo de obtención de nuevas plantas.
Evidence Aid: Using Systematic Reviews to Improve Access to Evidence for
Humanitarian Emergencies
Authors: Clarke Mike
Published: December 2017

Evidence Aid is an international initiative to improve access
to reliable evidence that will help people and organisations make
well-informed decisions about interventions, actions and strategies in the
disaster setting. It focuses on systematic reviews as the most reliable
source of research evidence, maximising the power of existing research,
avoiding undue emphasis on single studies and reducing the waste associated
with research that is ignored or not accessible to decision makers. Evidence
Aid is knowledge champion for influencers of the humanitarian sector,
including funders, policy makers, NGOs, and humanitarian professionals.
Evidence Aid was established by members of the Cochrane Collaboration after
the Indian Ocean tsunami of December 2004. It provides access to information
relevant to disaster risk reduction, planning, response, recovery,
resilience and rehabilitation. This presentation will discuss the need for
Evidence Aid, and describes its activities.

Find out more
about <a
href="http://pure.qub.ac.uk/portal/en/persons/mike-clarke(f6bee3f9-d4fd-4498-b28b-1e52b1dfaf91).html"
target="_blank">Mike.

 <img
src="https://www.veterinaryevidence.org/rcvskmod/icons/oa-icon.jpg"
alt="Open Access" />
Modelo factorial de inclusión en estudiantes de pedagogía
Authors: Belmar Marta , Cornejo Juan , Contreras Pilar , Mellado Carlos
Published: December 2017

La inclusión educativa y la atención a la diversidad estudiantil son actualmente un desafío en los centros educativos puesto que movilizan recursos exigiendo cambios culturales al interior de los mismos. Desde esta perspectiva, la formación de profesores inclusivos es una tarea fundamental en las universidades pues requiere actualizar programas educativos y sensibilizar a la comunidad. El presente estudio analiza las propiedades psicométricas y la estructura factorial de un instrumento diseñado ad hoc en base a una escala Likert y que mide actitudes hacia la inclusión educativa. Se aplicó la escala a una muestra de 363 estudiantes universitarios de pedagogía chilenos, estableciéndose diferencias según el sexo, la edad y el semestre cursado.Los resultados revelan que el instrumento presentó un alfa de Cronbach de 0.76 evidenciándose características psicométricas aceptables y una adecuada consistencia interna al tiempo que el AFC permitió correlacionar 5 dimensiones resultantes. Entre los principales hallazgos se encontró que las mujeres tienen actitudes más positivas que los varones en las dimensiones de práctica educativa inclusiva e inclusión en minorías.También se observó que la edad se asocia positivamente con la práctica educativa inclusiva y el derecho a la inclusión al tiempo que el semestre cursado se relacionó positivamente con la práctica educativa inclusiva y la inclusión de minorías, y negativamente con la formación docente inclusiva. Estas evidencias sugieren que si bien los estudiantes poseen actitudes positivas hacia la inclusión educativa, éstas mejoran a medida que progresan en sus estudios adquiriendo mayor experiencia. No obstante, para que dichas actitudes perduren en el tiempo se requeriría del refuerzo social de pares y profesorado y, junto con ello, que los programas educativos de formación de profesores incorporasen aspectos técnicos que permitieran lograr una sociedad más inclusiva acorde a los requerimientos educativos actuales.
Presentación
Authors: Vaillant Denise
Published: December 2017

Cuadernos de Investigación Educativa es la revista académica, arbitrada y semestral de investigación científica, que el Instituto de Educación de la Universidad ORT Uruguay publica desde 1997. Actualmente, está indexada en SciELO, Redalyc, Dialnet y Latindex.El nuevo número de Cuadernos de Investigación Educativa se publica en un año especial para la revista: sus 20 años. A lo largo del tiempo, se han editado más de un centenar de artículos, así como ocho volúmenes y 25 números.  Los aportes de la revista, desde sus diversos planteamientos, han sido muy fecundos y los temas abordados de gran actualidad. Conmemoramos 20 años, pero por sobre todo celebramos las contribuciones de todos aquellos que desde el año 1997, colaboraron a través de su producción académica al desarrollo de conceptos afinados, de análisis minuciosos y de debates informados. Aplaudimos al equipo de edición, al Consejo de Redacción, al Consejo Asesor y a los pares evaluadores por su generosidad intelectual y por su convencimiento de que es posible transformar la incertidumbre en materia de indagación.
INVITED EDITORIAL P.A.L.T.: An Interdisciplinary Model for Organizational Diagnosis and Intervention
Authors: Kertesz Roberto , Víctor Kertesz , Landau Alicia
Published: December 2017

The present work is an analysis with comments of the model created by Dr. Roberto Kertész. The organization is a complex social reality that is defined as a set of people, a deliberate internal structure and a common goal. This is achieved through processes of transformation of certain "inputs" to the system - organization, obtained from the context or environment. The P.A.L.T is a systemic model, in which the organization has the opportunity to regulate its activity. The levels of the efficiency of the organizational performance will obviously depend on the quality of these interactions and the study of the nature of them will allow the management to achieve a set of more valuable results. In order to systematize this set of knowledge, it is convenient to group its components in a model that is both analytical and integral. The PALT model stands for this objective, which means the systemic integration of the Psychological, Administrative, Legal and Technical variables.
Les Pratiques De Veille Chez Le Haut Manager Marocain : Quelles Echelles De Mesure?
Authors: Amine Hamdoune , Hicham Derkaoui Moulay
Published: December 2017

In order to explain the factors influencing the use of business intelligence by senior managers, this paper seeks to sift through all the measuring instruments that have been used, in previous work, to operationalize the variables and the dimensions forming our theoretical construct. Based on Churchill's (1979) paradigm, which proposes a systematic procedure, this choice of items will result in the administration of a questionnaire. Also, it is aimed at testing our conceptual model in the context of Moroccan industrial enterprises.
ÉVALUATION DE LA VARIABILITÉ DE LA COULEUR DU BOIS DE PISTACIA ATLANTICA DESF. DU NORD DE L’ALGÉRIE
Authors: Boudouaya Manel , Benhassaini Hachemi , Bendimered-Mouri Fatima Zohra , Mothe Frédéric , Fournier Meriem
Published: December 2017

Parmi les propriétés caractérisant le bois des essences naturelles et parti- culièrement celles des zones arides et semi-arides, la variabilité de la couleur conditionne leur utilisation en tant que matériau apparent de haute valeur ajoutée, en menuiserie-ébénisterie, par exemple. Les travaux présentés ici ont pour but de contribuer à la valorisation esthétique du bois d’une espèce ligneuse répandue en Algérie mais très peu étu- diée, le pistachier de l’Atlas, Pistacia atlantica Desf. La variabilité de la couleur a été évaluée sur des éprouvettes de bois coupées dans l’aubier et le duramen d’arbres provenant de deux régions diffé- rentes du point de vue bioclimatique en Algérie nord-occidentale. L’évaluation de la couleur du bois a été effectuée au sein du Laboratoire d’étude des ressources forêt-bois (LERFoB) à Nancy, France, en utilisant un spectrocolorimètre et un logi- ciel pour la mesure et l’affichage des don- nées. Les résultats obtenus indiquent la présence de variation de la couleur du bois du pistachier de l’Atlas entre les deux régions (pour les trois composantes chromatiques, L*, a* et b*) et entre les arbres (pour la composante L*). L’aubier, avec son bois plus clair, présente des composantes colorimétriques, particu- lièrement la clarté (L*) et la composante vert-rouge (a*), très différentes de celles du duramen. Nous en déduisons que les facteurs du milieu ont une influence sur les caractéristiques colorimétriques du bois de cette espèce, en plus des carac- téristiques individuelles intrinsèques de chaque arbre. Enfin, la clarté L* et les composantes vert-rouge a* et bleu-jaune b* présentent des variations entre les dif- férents types de bois de pistachier.
Self-Evaluation in a Clinical Setting to Develop Nursing Students’ Clinical Judgment
Authors: Sobaski Tanya , Abraham Sam
Published: December 2017

Background: The Lasater clinical judgment rubric is based upon Tanner’s clinical judgment model for developing clinical judgment and the incorporation of the Benner Novice to Expert theory. The Lasater clinical judgment rubric has been used in nursing programs at the baccalaureate level and with simulation exercises.Method: In this study, the Lasater clinical judgment rubric was used to compare instructor and associate degree nursing students’ evaluations in an acute care setting during their first nursing care rotation. Data analysis included a split-plot ANOVA with repeat measures. A sample size of 16 students yielded an effect size of .40 with a = .001.Results: There was no significant difference in mean scores between the five administrations of the assessment with different groups.Conclusion: The interactions between the evaluator and the scores over time were consistent between groups. Development of student’s ability to use self-evaluation, introspection, and self-awareness skills are foundational for thinking that is more complex.
Why not Robot Teachers: Artificial Intelligence for Addressing Teacher Shortage
Authors: Edwards Bosede I. , Cheok Adrian David
Published: December 2017

Global teacher shortage is a serious concern with grave implications for the future of education. This calls for novel ways of addressing teacher roles. The economic benefits of tireless labour inspires the need for teachers who are unlimited by natural human demands, highlighting consideration for the affordances of robotics and Artificial Intelligence in Education (AIED) as currently obtainable in other areas of human life. This however demands designing robotic personalities that can take on independent teacher roles despite strong opinions that robots will not be able to fully replace humans in the classroom of the future. In this paper, we argue for a future classroom with independent robot teachers, highlighting the minimum capabilities required of such personalities in terms of personality, instructional delivery, social interaction and affect. We describe our project on the design of a robot teacher based on these. Possible directions for future system development and studies are highlighted.
Performance Study of a Cylindrical Parabolic Concentrating Solar Water Heater with Nail Type Twisted Tape inserts in the Copper Absorber Tube
Authors: Bhakta Amit K. , Panday Nitesh  K. , Singh Shailenrda N.
Published: December 2017

This paper reports the overall thermal performance of a cylindrical parabolic concentrating solar water heater (CPCSWH) with inserting nail type twisted tape (NTT) in the copper absorber tube for the nail twist pitch ratios 4.787, 6.914 and 9.042 respectively. The experiments are conducted for a constant volumetric water flow rate and during the time period 9:00 h to 15:00 h. The useful heat gain, hourly solar energy collected and hourly solar energy stored of this solar water heater are found higher for nail twist pitch ratio 4.787. The above said parameters are found to be a peak at noon and observed to follow the path of variation of solar intensity. At the starting of the experiment, the value of charging efficiency is observed to be maximum. Whereas the maximum value of instantaneous efficiency and overall thermal efficiency are observed at noon. The key finding is that the nail twist pitch ratio enhances the overall thermal performance of the CPCSWH.
Особенности количественного распределения рыб дельты Дона в тёплый сезон 2015 г.
Authors: Болтачев А. Р. , Карпова Е. П. , Старцев А. В. , Степаньян О. В.
Published: December 2017

Изучены видовое разнообразие и особенности качественного и количественного распределения рыб в некоторых протоках дельты реки Дон, которая является верхней границей крупного эстуарного экотона между экосистемами бассейна этой реки и Азовского моря. Впервые определены удельная численность и удельная биомасса мелких донных и придонных видов рыб в протоках дельты, различающихся условиями обитания. Установлено, что непромысловые мелкие виды рыб доминируют по численности, а в отдельных случаях — и по биомассе, что определяет их важную роль в трофической структуре экотона дельты. Для сообществ рыб отмечены низкие значения индекса разнообразия Шеннона, что подтверждает хорошо выраженное доминирование эврибионтных короткоцикловых непромысловых рыб. Дальнейшее повышение солёности Азовского моря может привести к увеличению количественных показателей солоноватоводных понто-каспийских эндемиков в дельте Дона.
Консорты брюхоногого моллюска Rapana venosa (Valenciennes, 1846) в северной части Чёрного моря. Часть II: Mollusca (Polyplacophora, Bivalvia)
Authors: Бондарев И. П. , Ревков Н. К.
Published: December 2017

Исследование моллюсков-симбионтов хищной гастроподы Rapana venosa (Valenciennes, 1846) является продолжением работы по описанию таксономического состава комплекса эпибионтов, формирующегося на раковине рапаны. Современные исследования инвазивной гастроподы R. venosa показывают, что экологическая роль этого вида не сводится только к хищничеству. На довольно крупной раковине рапаны может формироваться специфический комплекс организмов-эпибионтов, рассматриваемый как консорция, ядром которой является R. venosa. Консорция брюхоногого моллюска-вселенца R. venosa является малоизученным и неучтённым звеном бентосных сообществ и экосистемы шельфа Чёрного моря. Для изучения консортного сообщества рапаны были осуществлены сборы в 7 районах северной части Чёрного моря: 1 — Мамайя, Румыния; 2 — северо-западная часть Чёрного моря (СЗ-ЧМ), Крымский сектор; 3 — Севастополь; 4 — Алупка; 5 — Ялта — Алушта; 6 — Карадаг; 7 — Керченский пролив. Сбор рапаны в прибрежной зоне до глубины 15 м проводили тотально с использованием легководолазного оборудования, в более глубоководной зоне (до 40 м) — дночерпателем «Океан-50» с борта НИС «Профессор Водяницкий». Каждый экземпляр помещали в отдельный пластиковый пакет с указанием района, глубины и биотопа. Параллельно со сбором моллюсков проводили визуальные наблюдения и фотофиксацию гидробионтов in situ. Всего проанализировано 890 экземпляров R. venosa. По сравнению с предыдущими исследованиями существенно расширен таксономический список консортных моллюсков R. venosa, относящихся к трём классам: Polyplacophora (Loricata), Bivalvia, Gastropoda. В этой части работы рассмотрены Polyplacophora, представленные в консорции 3 видами 2 родов 2 семейств, и Bivalvia — 7 видами 7 родов 5 семейств. Установлено, что моллюски являются важным компонентом консорции рапаны. На скальной рапане хитоны встречаются с частотой до 25 %, на песчаной рапане — до 10 %, в целом в консорции рапаны — около 12 %. Более 80 % численности всех хитонов на рапане приходится на Lepidochitona cinerea. Встречаемость бивальвий в большинстве обследованных районов составляет 50–75 %. Площадь покрытия раковины рапаны двустворками обычно составляет 2–20 %, иногда достигая 85 %. Наиболее распространённым видом бивальвий и моллюсков в целом в консорции черноморской рапаны является Mytilaster lineatus. Большинство Bivalvia имеют тесную связь с ядром консорции, прикрепляясь биссусом к поверхности раковины рапаны, а на самых ранних стадиях — и к поверхности эпифитов. Представители Polyplacophora приурочены преимущественно к скальной форме рапаны, а Bivalvia представлены большим количеством видов в консорции рапаны рыхлых грунтов, чем скальных (6 против 3 видов соответственно). Различия в таксономическом составе эпибионтов и проценте покрытия раковины двух экоформ R. venosa преимущественно определяются спецификой динамического воздействия водной массы в зонах развития скальных и рыхлых грунтов.
Химико-микробиологическая характеристика вод и донных отложений Керченского пролива и прилегающих акваторий
Authors: Тихонова Е. A. , Бурдиян Н. В. , Соловьёва О. В.
Published: December 2017

Представлены результаты исследований уровня загрязнения нефтяными углеводородами и хлороформ-экстрагируемыми веществами донных отложений и морской воды районов черноморского предпроливья и Азовского моря (весна, осень 2016 г.). Выполнено сравнение уровней загрязнения морской среды с результатами предыдущих исследований (2007–2010 гг.). Приведены количественные характеристики гетеротрофной и нефтеокисляющей микробиоты в обозначенных районах.  Установлено, что концентрация нефтяных углеводородов в поверхностном слое воды района азовского предпроливья в целом не превышала значения ПДК (0,05 мг·л-1). Исключение составили результаты, полученные осенью 2016 г. Численность гетеротрофных бактерий изменялась в поверхностном слое воды Азовского моря в пределах 104–105 кл.·мл-1, нефтеокисляющие бактерии были выделены в единичных количествах. В акватории причерноморского района пролива число гетеротрофных бактерий составило 106 , численность нефтеокисляющих бактерий не превысила 10 кл.·мл-1. При сравнении с данными прошлых лет отмечено увеличение содержания хлороформкстрагируемых веществ и нефтяных углеводородов в донных отложениях. Общий уровень загрязнения при этом не превышал средних величин, определённых для данного региона. Численность гетеротрофных бактерий в донных отложениях в приазовской акватории варьировала от 2,5·104 до 4,5·104 кл.·г-1, а нефтеокисляющих бактерий — от 2,5·10 до 4,5·102 кл.·г-1. В донных отложениях черноморского предпроливья число гетеротрофов составляло 4,5·103 кл.·г-1, нефтеокисляющих бактерий — 10 кл.·г-1.
Fundamental Tongue Motions for Trumpet Playing: A Study Using Cine Magnetic Resonance Imaging (Cine MRI)
Authors: Furuhashi Hiroko , Chikui Toru , Inadomi Daisuke , Shiraishi Tomoko , Yoshiura Kazunori
Published: December 2017

OBJECTIVE: Though the motions of structures outside the mouth in trumpet performance have been reported, the dynamics of intraoral structures remain unelucidated. This study explored the tongue’s movement in trumpet playing using cine magnetic resonance imaging (cine MRI) and
demonstrated the effects of intraoral anatomical structures on changes in pitch and dynamics. METHODS: Cine MRI was applied to 18 trumpet players, who were divided into two groups (7 beginner, 11 advanced) based on their ability to play a certain high note. They were instructed to play a custom-made
MRI-compatible simulated trumpet. Pitch-change tasks and dynamics-change tasks were assigned. The positions of the anatomical points and intraoral areas were identified on outlined images, and the changes associated with each task were evaluated. RESULTS: A forward and upward projection of
the tongue was observed in the production of higher pitches, and there were no significant differences in all areas. In louder dynamics, a backward and downward bending of the tongue occurred, the tongue area became smaller (p<0.001), and the oral cavity area became larger (p<0.001).
No significant differences between beginner and advanced trumpet players were seen in the changes in pitch and dynamics. CONCLUSION: It was demonstrated using cine MRI that certain tongue movements were associated with each task. Tongue protrusion in the production of higher pitch and bending
in louder dynamics can be rationalized using acoustics theory and the movements of anatomical structures. These findings seem to be consistent regardless of the player’s proficiency.
Implementation of an integrated pharmacy supply management strategy
Authors: Amerine Lindsey B. , Calvert Daniel R. , Pappas Ashley L. , Lee Sarah M. , Valgus John M. , Savage Scott W.
Published: December 2017

Purpose

Implementation of an integrated pharmacy supply management strategy is described.

In 2011, the formulary approval process and supply management for oncology medications were independent of each other at an oncology infusion center. Numerous nonformulary medications were kept on hand and reordered based on inventory levels that were established with inadequate usage information, while some formulary agents did not have on-hand inventory levels and had to be reordered on a patient-specific basis, which required paperwork and then a review by drug information staff per institutional policy. Because there was no true distinction in the ordering of formulary versus nonformulary oncology agents, the medical staff prescribed both in the same manner, leaving the pharmacy staff responsible for ensuring that enough quantities were on hand for many drugs, regardless of formulary status. Using supply chain management principles, a formal analysis of the on-hand inventory was performed. In addition, the formulary process for oncology drugs was restructured to align with how oncology drugs are managed for on-hand inventory levels. The alignment of these processes allowed the operation to have 1 supply strategy for the ambulatory oncology infusion center. As a result, inventory exhaustion rates were reduced by 70% and inventory turn rates improved by 78%. There was also significant time savings in the operational process streamlining, eliminating the rework and inefficiencies caused by an unclear process that was not fully captured in this assessment.

Conclusion

Alignment of the formulary review process with inventory analyses that support supply management principles reduced inventory exhaustion while improving inventory turn rates.
Aquifer parameter and zonation structure estimation using meshless local Petrov–Galerkin method and particle swarm optimization
Authors: Swathi Boddula , Eldho T. I.
Published: December 2017

The simulation-optimization (SO) modeling approach can be effectively used for aquifer parameter estimation. In this study, a numerical approach based on meshless local Petrov–Galerkin (MLPG) method is used for groundwater flow simulation and coupled with particle swarm optimization model for optimization. The study deals with the identification of the most suitable model structure for a hypothetical heterogeneous confined aquifer from a number of alternate models using zonation method of parameter estimation. A range of alternate models starting from homogeneous to more complex model structures are considered for the zonation. Inverse modeling of different model structures is carried out based on weighted least square performance criterion. The suitable models are selected and reliability analysis ascertained by computing three parameters of composite scaled sensitivity, coefficient of variation, and confidence interval, and the best model is selected. Sensitivity of estimated parameters is investigated by considering different sets of head data involving possible measurement errors. The solutions are compared with another inverse model using the MLPG and Levenberg–Marquardt algorithm. Based on the results, it is found that the proposed methodology can be utilized in the estimation of different unknown parameters in a regional groundwater system.
Removal of nitrate from water by acid-washed zero-valent iron/ferrous ion/hydrogen peroxide: influencing factors and reaction mechanism
Authors: Li Yongye , Fu Fenglian , Ding Zecong
Published: December 2017

In this paper, a system consisting of acid-washed zero-valent iron (ZVI), ferrous ion (Fe2+), and hydrogen peroxide (H2O2) was employed for the removal of nitrate (NO3−) from water, and the reaction mechanism for this is discussed. The effects of acid-washed ZVI, Fe2+, H2O2, and initial NO3− concentration on nitrate removal were investigated. Acid-washed ZVI before and after reaction with nitrate were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). Results reveal that the combined system can enhance the corrosion of ZVI and facilitate aqueous nitrate reduction. The products of nitrate reduction are mainly ammonium, with some N2. The ZVI particles after reaction may have a core of ZVI with an oxidation layer mainly consisting of Fe3O4.
Effect of Mortar Reduction in Recycled Aggregates Used in Concrete
Authors: Letelier Viviana , Tarela Ester , Muñoz Pedro
Published: December 2017

Background:

Following a global environmental concern, concrete manufactured with recycled materials has been widely studied. The reuse of concrete as raw material can reduce the amount of debris and the amount of natural resources needed minimizing the environmental impact.

Objective:

One of the fundamental issues when using recycled aggregates is the mortar that remains adhered to their surfaces. The effect of this adhered mortar on aggregates, obtained from pavement demolition debris, used in recycled concrete is studied.

Method:

A mechanical abrasion process is used to reduce the amount of mortar in different degrees from the recycled aggregates that will be used to replace a 40 % of natural coarse aggregates in structural concrete. The mechanical behavior is studied through the compressive and flexural strength of the material and compared with the values obtained for a control concrete, with no recycled aggregates.

Results:

The abrasion process is proven to be effective eliminating the adhered mortar to the aggregates and the results show that a medium abrasion level, around 200rev, improves significantly the mechanical properties of the recycled concrete, increasing its compressive strength.

Conclusion:

The percentage of recycled aggregates used in structural concrete can be increased if these are treated with simple mechanical abrasion. The residuals of the eliminated mortar can be also reused as cement replacement, maximizing the material reuse.