bluuebunny/crossref_metadata_2025_split huggingface dataset:
TÜRKİYE'DE ÜRETKEN SERMAYE OLUŞUM SÜRECİNİN ÖNÜNDEKİ ENGEL OLARAK BEŞERİ SERMAYE VE BEŞERİ SERMAYE OLUŞTURMA POLİTİKALARI
Authors: Şimşek Açar Gizem 
Published: March 2018

Türkiye’de
üretken sermaye oluşumu kendi içerisinde önemli gerilimli değişimler içeriyor. Özellikle 2001 krizinden sonra daha belirgin
bir hal alan bu yapısal dönüşüm süreci, üretim yapısının emek yoğun üretimden
sermaye yoğun üretime doğru geçiş göstermesiyle ilişkilidir. Geçişin sancılı
olması üretim sürecinin katma değeri yüksek alanlara ya da diğer bir kavramlaştırma
ile görece artı- değer üretimine geçişin zorluklarla ilişkilidir. Bu açıdan baktığımızda
sürecin işleyişi aslında mutlak artı değer üretiminden görece artı değer
üretimine geçilmesiyle ve emek gücünün niteliğindeki dönüşümle bağlantılı. Dönüşüme
ilişkin en önemli değişken emek-gücünün sürece uygun dönüşüm geçirmesidir; yani
beşeri sermaye olarak kavramsallaştıran dönüşümün gerçekleştirilmesi gerekiyor.
Dolayısıyla çalışma, Türkiye’de sermaye birikiminin değişen aşamalarında emek gücünün
beşeri sermaye biçimindeki dönüşümünü ve bunun katma değerli üretimle olan iç
bağlantılarını kurmayı amaçlamaktadır. Söz konusu iç bağlantılar kurulurken
sermaye birikiminin tarihsel bir sürekliliği olduğundan hareketle, bu
sürekliliğin farklı aşamalarının sahip olduğu farklı dinamiklerin emek gücünün
beşeri sermayeye dönüşümündeki etkilerine dikkat çekilecektir.
Microstructure and mechanical properties of ultra-fine WC-10Co cemented carbides with Cr3C2 and NbC: Experimental investigation supported by thermodynamic calculation
Authors: Tian Haixia , Du Yong , Peng Yingbiao , Chen Chong 
Published: March 2018

AbstractIn this work, Cr3C2 and NbC grain-growth inhibitors are added simultaneously to control the grain growth of ultra-fine WC-10 wt.% Co cemented carbides. Several ultra-fine WC-10 wt.% Co cemented carbides with various contents of Cr and Nb are designed and fabricated by a hybrid approach of thermodynamic calculations and key experiments. According to thermodynamic calculation, the maximum additions of Cr and Nb are 0.65 and 0.4 wt.%, respectively, in order to avoid the appearance of detrimental phases M7C3 and (Nb,W)C. The present experiments reveal that the density, transverse rupture strength, hardness and fracture toughness of WC-10 wt.% Co cemented carbides are improved significantly with the addition of Cr3C2 and NbC below the maximum solubility in the binder phase. However, excessive Cr3C2 and NbC lead to the formation of M7C3 as well as coarse (Nb,W)C grains, which deteriorates the mechanical properties. The correlation between composition, microstructure, and mechanical properties is discussed from experimental and phase assemblage points of view.
Social organization in the Orcadian Neolithic: identification of elite domestic structures and settlements through analysis of excavation data
Authors: MacInnes David 
Published: March 2018

The nature of social organization during the Orcadian Neolithic has been the subject of discussion for several decades with much of the debate focused on answering an insightful question posed by Colin Renfrew in 1979. He asked, how was society organised to construct the larger, innovative monuments of the Orcadian Late Neolithic that were centralised in the western Mainland? There are many possible answers to the question but little evidence pointing to a probable solution, so the discussion has continued for many years. This paper takes a new approach by asking a different question: what can be learned about Orcadian Neolithic social organization from the quantitative and qualitative evidence accumulating from excavated domestic structures and settlements?In an attempt to answer this question, quantitative and qualitative data about domestic structures and about settlements was collected from published reports on 15 Orcadian Neolithic excavated sites. The published data is less extensive than hoped but is sufficient to support a provisional answer: a social hierarchy probably did not develop in the Early Neolithic but almost certainly did in the Late Neolithic, for which the data is more comprehensive.While this is only one approach of several possible ways to consider the question, it is by exploring different methods of analysis and comparing them that an understanding of the Orcadian Neolithic can move forward.
Flipped Classroom: Do Students Perceive Readiness for Advanced Discussion?
Authors: Hoover Carrie Ann , Dinndorf-Hogenson Georgia Ann , Peterson Jennifer Lee , Tollefson Bethany Renae , Berndt Jodi Lisbeth , Laudenbach Nikki 
Published: March 2018

Background:
Use of the flipped classroom model is recognized as a popular method of instruction. Effective preclass preparation methods can create more time for instructors to reinforce application, evaluation, and analysis of information using active learning strategies.

Method:
This quasi-experimental study used a convenience sample of 42 third-year baccalaureate nursing students. Students were randomized into two groups and received either a narrated video (vodcast) or guided readings for the preclass preparation. A quiz was administered to assess preparation prior to class, and students completed a survey following the classroom activities.

Results:
Students preferred media preparation to guided readings. This preference translated to higher quiz scores. Positive correlations were noted between quiz scores and students' understanding and increased confidence.

Conclusion:

Students' preference for the vodcast translated to the perception of an increase in confidence and understanding of the material. [
J Nurs Educ.
2018;57(3):163–165.]
Mobile Devices: A Distraction, or a Useful Tool to Engage Nursing Students?
Authors: Gallegos Cara , Nakashima Hannah 
Published: March 2018

Background:
Engaging nursing students in theoretical courses, such as research, can be challenging. Innovative instructional strategies are essential to engage nursing students in theoretical nursing courses.

Method:
This article describes an educational innovation using technology as a tool in an undergraduate nursing research class. All students in the course received iPads for the semester. Lecture material was presented in class using Nearpod, an interactive presentation embedded with slides, multimedia components, and learning activities.

Result:
Students reported that using the mobile technology helped them minimize off-task activities, interact more with each other and the instructor, solve problems in the class, and develop skills and confidence related to their career.

Conclusion:

Allowing device use in the classroom, such as iPads and interactive mobile applications, can be a useful learning tool. Intentional use of technology and pedagogy can increase engagement and interaction with students. [
J Nurs Educ.
2018;57(3):170–173.]
Recent Insights into CD4+ Th Cell Differentiation in Malaria
Authors: Soon Megan S. F. , Haque Ashraful 
Published: March 2018

Abstract
CD4+ Th cell differentiation is crucial for protecting against blood-stage Plasmodium parasites, the causative agents of malaria. It has been known for decades that more than one type of Th cell develops during this infection, with early models proposing a biphasic Th1/Th2 model of differentiation. Over the past decade, a large body of research, in particular, reports over the past 2–3 y, have revealed substantial complexity in the Th differentiation program during Plasmodium infection. In this article, we review how several studies employing mouse models of malaria, and recent human studies, have redefined the process of Th differentiation, with a particular focus on Th1 and T follicular helper (Tfh) cells. We review the molecular mechanisms that have been reported to modulate Th1/Tfh differentiation, and propose a model of Th1/Tfh differentiation that accommodates observations from all recent murine and human studies.
Decision to Return to Sport After Anterior Cruciate Ligament Reconstruction, Part I: A Qualitative Investigation of Psychosocial Factors
Authors: Burland Julie P. , Toonstra Jenny , Werner Jennifer L. , Mattacola Carl G. , Howell Dana M. , Howard Jennifer S. 
Published: March 2018

Context: Return-to-sport criteria after anterior cruciate ligament (ACL) injury are often based on “satisfactory” functional and patient-reported outcomes. However, an individual's decision to return to sport is likely multifactorial; psychological and physical readiness to return may not be synonymous.Objective: To determine the psychosocial factors that influence the decision to return to sport in athletes 1 year post–ACL reconstruction (ACLR).Design: Qualitative study.Setting: Academic medical center.Patients or Other Participants: Twelve participants (6 males, 6 females) were purposefully chosen from a large cohort. Participants were a minimum of 1-year postsurgery and had been active in competitive athletics preinjury.Data Collection and Analysis: Data were collected via semistructured interviews. Qualitative analysis using a descriptive phenomenologic process, horizontalization, was used to derive categories and themes that represented the data. The dynamic-biopsychosocial model was used as a theoretical framework to guide this study.Results: Six predominant themes emerged that described the participants' experiences after ACLR: (1) hesitation and lack of confidence led to self-limiting tendencies, (2) awareness was heightened after ACLR, (3) expectations and assumptions about the recovery process influenced the decision to return to sport after ACLR, (4) coming to terms with ACL injury led to a reprioritization, (5) athletic participation helped reinforce intrinsic personal characteristics, and (6) having a strong support system both in and out of rehabilitation was a key factor in building a patient's confidence. We placed themes into components of the dynamic-biopsychosocial model to better understand how they influenced the return to sport.Conclusions: After ACLR, the decision to return to sport was largely influenced by psychosocial factors. Factors including hesitancy, lack of confidence, and fear of reinjury are directly related to knee function and have the potential to be addressed in the rehabilitation setting. Other factors, such as changes in priorities or expectations, may be independent of physical function but remain relevant to the patient-clinician relationship and should be considered during postoperative rehabilitation.
Dyslexic learners’ experiences with their peers and teachers in special and mainstream primary schools in North-West Province
Authors: Leseyane Monicca , Mandende Peter , Makgato Mary , Cekiso Madoda 
Published: March 2018

Background: Inclusive education requires that the framework within which education is delivered should be broad enough to accommodate equally the needs and circumstances of every learner in the society. This includes learners with disabilities like dyslexia who have been excluded from the formal education system. This article reports the findings of a qualitative study that explored and described the dyslexic learners’ experiences with their peers and teachers in special and public schools in North-West Province of South Africa.Methods: The study adopted a qualitative methodology and used a phenomenology research design. The sample was purposively selected and comprised nine dyslexic learners. All the learners were in public schools previously and were later moved to a special school after being diagnosed as dyslexic. The participants were aged 9–12 years. The researchers conducted one-on-one interviews with the participants and content-analysed the data.Findings: The findings revealed that in public schools the dyslexic learners were exposed to ill-treatment by other learners who despised, ridiculed, bullied and undermined them. The findings further revealed that teachers in public schools were not patient with dyslexic learners, did not give them extra attention and that some teachers used negative comments that embarrassed them.Conclusion: The article spells out the barriers experienced by dyslexic learners in public schools and also recommends training of teachers so that they know how to deal with dyslexic learners, thereby eliminating the barriers. The study further recommended awareness campaigns among the student body about dyslexia.
Exploring the Impact of Telecollaboration in Initial Teacher Education: The EVALUATE project
Authors: O'Dowd Robert 
Published: March 2018

This article provides an introduction to the EVALUATE project (Evaluating and Upscaling Telecollaborative Teacher Education). This project aims to gauge the impact of telecollaborative learning on student-teachers involved in Initial Teacher Education in various European countries and regions. <span>The project is funded by the Erasmus+ KA3 programme (EACEA/34/2015) and is a European Policy Experiment (EPE). </span>
Protocolo de valorización de residuos en la fabricación de materiales de base cemento: sedimentos dragados como componente de hormigón autocompactante
Authors: Castillo Talavera Angel , Rozas Francisco , Martínez Sierra Isabel , Castellote Armero Marta 
Published: March 2018

A pesar del gran esfuerzo de investigación que se ha llevado a cabo sobre el tema de la valorización de residuos en materiales de construcción, no se han encontrado protocolos para evaluar de forma sistemática la viabilidad de un residuo para formar parte de una matriz de base cemento. Acometer esta parte es el objetivo de esta investigación, que presenta unas reglas generales para analizar la viabilidad del uso de residuos en la fabricación de hormigón. El procedimiento se ilustra con un ejemplo, obteniendo hormigón autocompactante (SCC) que incorpora un sedimento dragado de un puerto español. La razón para elegir sedimento dragado como residuo se debe a que las contribuciones en este tema se han centrado fundamentalmente en la reutilización de residuos industriales y de demolición, no siendo tan frecuente encontrar trabajos en los que se incorporen sedimentos dragados en la fabricación de hormigón, a pesar de la gran cantidad de sedimentos que se dragan cada año en el mundo. Se ha elegido SCC como ejemplo por las características del propio residuo, considerando además las características de este material como tecnología intrínsecamente amigable desde un punto de vista medioambiental: fluye bajo su propio peso, eliminando la necesidad de vibrado, lo que implica un considerable ahorro energético, de horas hombre y de tiempo de construcción. Adicionalmente, contribuye a un entorno laboral más saludable al eliminar el impacto del ruido y la vibración, que a su vez repercuten en un bienestar social al acortar y hacer menos molestos los periodos de obras.DOI: http://dx.doi.org/10.4995/HAC2018.2018.5637
Influencia de la naturaleza y granulometría de los áridos en el comportamiento reológico de morteros de cementos activados alcalinamente
Authors: Alonso Maria del Mar , Gismera-Diez Sara , Puertas Francisca 
Published: March 2018

Actualmente, la búsqueda de materiales cementantes eco-eficientes y sostenibles es un reto obligado, con el fin de adaptar el sector de la construcción hacia un tipo de economía circular y sostenible. Estos materiales, además, deben cumplir una serie de requisitos de prestaciones mecánicas, durables y de trabajabilidad que los haga competitivos. Dentro de estos materiales eco-eficientes, destacan los sistemas de cementos activados alcalinamente (Alkali-Activated Materials, AAMs), con muy buenas prestaciones mecánicas y durabilidad, pero cuya reología y trabajabilidad no están suficientemente estudiados. En trabajos previos se ha determinado que el comportamiento reológico de pastas y morteros de escorias y cenizas activadas alcalinamente (AAS y AAFA) depende de la naturaleza y la concentración del activador alcalino. Asimismo se corroboró que la trabajabilidad de los morteros AAS y AAFA es más sensible a los cambios en la relación líquido/sólido que los morteros de OPC. Sin embargo hay parámetros cuya influencia sobre la reología de estos morteros de AAMs están por determinar, como son la granulometría y naturaleza del árido en el sistema. Se han preparado morteros con una relación árido/ligante 2:1 variando el diámetro máximo del árido (0.5, 1 y 2 mm) y la naturaleza del mismo (silíceo, calizo y remplazamiento parcial por árido reciclado). Los morteros de AAS se activaron con una disolución de silicato sódico hidratado (waterglass) (módulo SiO2/Na2O de 1.5 y 4% de Na2O sobre peso de escoria), mientras que los de cenizas volantes se activaron con una disolución de NaOH 10M. Se elaboraron igualmente morteros de OPC con el fin de comparar con un sistema tradicional. La trabajabilidad de los morteros se evaluó a partir de la prueba de fluidez y se han realizado ensayos de Stress Growth Test y determinación de parámetros reológicos por el ensayo del Flow curve test. Los resultados han mostrado, en primer lugar, que la fluidez de los morteros de AAMs presenta mayor variación con el tamaño de árido, frente a los morteros de OPC. De igual manera, la naturaleza del árido afecta a la demanda de líquido y a la fluidez de dichos morteros. Además, la disminución del tamaño máximo de los áridos, produce en todos los casos un aumento en el valor del esfuerzo umbral de cizalla estático y dinámico, así como de la viscosidad plástica. Por último, se ha constatado que los morteros de OPC, AAS y AAFA se ajustan al modelo reológico de Bingham, independientemente de la naturaleza y diámetro máximo de partícula del árido.DOI: http://dx.doi.org/10.4995/HAC2018.2018.6002
Reforço ao corte de vigas em betão armado recorrendo a painéis em micro betão auto compactável reforçado com fibras metálicas de pneus reciclados
Authors: Lourenço Lúcio , Zamanzadeh Ziaadin , Barros Joaquim , Gonçalves Delfina , Costa Inês 
Published: March 2018

No passado recente, o grupo de investigação "Structural Composites" da Universidade do Minho e a empresa CiviTest – Pesquisa de Novos Materiais para a Engenharia Civil, Lda. têm realizado vários estudos experimentais e numéricos avançados, em parceria, que permitiram a aquisição de conhecimento e o desenvolvimento de materiais de matriz cimentícia reforçados com fibras recicladas, BRFR (Betão Reforçado com Fibras Recicladas), nomeadamente as provenientes da indústria da reciclagem de pneus. A investigação desenvolvida tem evidenciado que as fibras recicladas possuem elevadas potencialidades como reforço efetivo do betão, nomeadamente no reforço ao corte. No presente trabalho pretende-se apresentar os resultados relativos à avaliação da eficácia do reforço ao corte de vigas em betão por intermédio da aplicação de painéis em microbetão auto-compactável reforçado com fibras de aço de pneu reciclado nas faces de vigas de betão armado existentes. Para tal foram efetuados ensaios comparativos de resistência ao corte entre vigas em betão armado de referência (viga I com 1.25 x 0.15 x 0.30 m3; alma com 0.09 m) e vigas similares reforçadas na alma com painéis em microbetão auto-compactável reforçado com fibras recicladas de 2 cm de espessura usando dois sistemas de fixação às respetivas vigas em betão armado. Os resultados e conclusões obtidos são apresentados na presente publicação. A eficiência da aplicação dos referidos painéis em vigas demonstrou que é possível obter aumentos de capacidade de carga da ordem dos 250 % em vigas não fendilhadas e em vigas previamente fendilhadas. DOI: http://dx.doi.org/10.4995/HAC2018.2018.6143
Influencia de la fracción mixta y de hormigón en las prestaciones mecánicas de los hormigones reciclados
Authors: Medina C. , Plaza P. , Velardo P. , Matías A. , Sánchez de Rojas M.I. , Sáez del Bosque I.F. 
Published: March 2018

La utilización de áridos reciclados en el ámbito de la ingeniería civil ha incrementado en los últimos años, representando en 2014 un 8% de la producción total de áridos a nivel europeo. A nivel nacional el empleo de los mismos se ha visto estimulado en la última década por el desarrollo de un marco normativo que permite su empleo en aplicaciones, tales como mezclas bituminosas, base de carreteras, hormigones estructurales y no estructurales …. La actual Instrucción Española de Hormigón Estructural (EHE-08) permite la incorporación parcial (&lt; 20% peso) de áridos reciclados gruesos de hormigón como sustitutos de los áridos convencionales. El presente trabajo de investigación persigue analizar el efecto de utilizar simultáneamente la incorporación parcial (20%) de arena reciclada (hormigón o mixta) con árido grueso reciclado de hormigón (50%) en las prestaciones finales de los hormigones reciclados con fines estructurales. Para alcanzar este ítem, se caracterizó primeramente los áridos empleados, para posteriormente proceder al diseño y fabricación de las mezclas objeto de estudio. A continuación, se llevó a cabo la caracterización física (densidad y consistencia) y mecánicas (compresión, tracción y flexión) de los nuevos hormigones. Resultado de este estudio se observa que la incorporación de la fracción fina y gruesa reciclada no afecta nocivamente en las prestaciones finales de los mismos pudiendo ser empleados en el sector de la construcción y contribuyendo al actual modelo de economía circular. Finalmente, indicar que este trabajo contribuye a aportar un mayor conocimiento a la laguna científica y técnica que tiene la reutilización integral (fracción fina y gruesa) de los residuos de la construcción y demolición en el campo de los hormigones.DOI: http://dx.doi.org/10.4995/HAC2018.2018.6447
Nighttime wind and scalar variability within and above an Amazonian canopy
Authors: Oliveira Pablo E. S. , Acevedo Otávio C. , Sörgel Matthias , Tsokankunku Anywhere , Wolff Stefan , Araújo Alessandro C. , Souza Rodrigo A. F. , Sá Marta O. , Manzi Antônio O. , Andreae Meinrat O. 
Published: March 2018

Abstract. Nocturnal turbulent kinetic energy (TKE) and fluxes of energy, CO2 and O3 between the Amazon forest and
the atmosphere are evaluated for a 20-day campaign at the Amazon Tall Tower Observatory (ATTO) site. The distinction of
these quantities between fully turbulent (weakly stable) and intermittent (very stable) nights is discussed. Spectral
analysis indicates that low-frequency, nonturbulent fluctuations are responsible for a large portion of the variability
observed on intermittent nights. In these conditions, the low-frequency exchange may dominate over the turbulent
transfer. In particular, we show that within the canopy most of the exchange of CO2 and H2O happens on
temporal scales longer than 100 s. At 80 m, on the other hand, the turbulent fluxes are almost absent in
such very stable conditions, suggesting a boundary layer shallower than 80 m. The relationship between TKE and
mean winds shows that the stable boundary layer switches from the very stable to the weakly stable regime during
intermittent bursts of turbulence. In general, fluxes estimated with long temporal windows that account for low-frequency effects are more dependent on the stability over a deeper layer above the forest than they are on the
stability between the top of the canopy and its interior, suggesting that low-frequency processes are controlled over
a deeper layer above the forest.