bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessing spacing impact on coherent features in a wind turbine array boundary layer
Authors: Ali Naseem , Hamilton Nicholas , DeLucia Dominic , Bayoán Cal Raúl
Published: February 2018

Abstract. As wind farms become larger, the spacing between turbines becomes a significant design consideration that can impose serious economic constraints. To investigate the turbulent flow structures in a 4 × 3 Cartesian wind turbine array boundary layer (WTABL), a wind tunnel experiment was carried out parameterizing the streamwise and spanwise wind turbine spacing. Four cases are chosen spacing turbines by 6 or 3D in the streamwise direction, and 3 or 1.5D in the spanwise direction, where D = 12 cm is the rotor diameter. Data are obtained experimentally using stereo particle image velocimetry. Mean streamwise velocity showed maximum values upstream of the turbine with the spacing of 6 and 3D in the streamwise and spanwise direction, respectively. Fixing the spanwise turbine spacing to 3D, variations in the streamwise spacing influence the turbulent flow structure and the power available to following wind turbines. Quantitative comparisons are made through spatial averaging, shifting measurement data and interpolating to account for the full range between devices to obtain data independent of array spacing. The largest averaged Reynolds stress is seen in cases with spacing of 3D × 3D. Snapshot proper orthogonal decomposition (POD) was employed to identify the flow structures based on the turbulence kinetic energy content. The maximum turbulence kinetic energy content in the first POD mode is seen for turbine spacing of 6D × 1.5D. The flow upstream of each wind turbine converges faster than the flow downstream according to accumulation of turbulence kinetic energy by POD modes, regardless of spacing. The streamwise-averaged profile of the Reynolds stress is reconstructed using a specific number of modes for each case; the case of 6D × 1.5D spacing shows the fastest reconstruction to compare the rate of reconstruction of statistical profiles. Intermediate modes are also used to reconstruct the averaged profile and show that the intermediate scales are responsible for features seen in the original profile. The variation in streamwise and spanwise spacing leads to changes in the background structure of the turbulence, where the color map based on barycentric map and Reynolds stress anisotropy tensor provides an alternate perspective on the nature of the perturbations within the wind turbine array. The impact of the streamwise and spanwise spacings on power produced is quantified, where the maximum production corresponds with the case of greatest turbine spacing.
The Effect of Employee Turnover in the Hospitality Industry: Quantitative Correlational Study
Authors: Holston Okae Bettye
Published: February 2018

The purpose of this quantitative correlational study was to examine the relationship between employee turnover intention and job satisfaction, employee compensation, employee engagement, employee motivation, and work environment. A convenience sample of 156- services related employees from the hospitality industry in Western Georgia; Central Mississippi; and North Central Texas participants in the online surveys. The results from multiple linear regression models were significant in predicating employee turnover in the hospitality industry. In the final model, the five predictors accounted for approximately 36% of the variance in turnover intention, and the result was statistically significant, (R² =. 36, F (5, 105) = 11.57, p < .001). Motivation was not a significant predictor of employee's turnover intentions. The introduction of others organizational related variables by future researchers might enhance the effectiveness of the model. The practical implications for change include the ability of hospitality leaders' to implemented strategies and policies into their business practice to reduce employee turnover with industry, which is vital for organizational to retain skilled worker while maintaining profitability.
Reﬂexión de la práctica pedagógica, a través de un portafolio electrónico, en la formación inicial docente
Authors: Lara Subiabre Brenda , Pereira Berrios María , Alvarado Toledo Paola , Muñoz Delgado Cesar
Published: February 2018

El estudio de tipo investigación-acción se desarrolló en el contexto de las prácticas pedagógicas fnales de estudiantes de tres carreras de Pedagogía. El objetivo principal fue promover procesos de reﬂexión pedagógica dentro de su práctica profesional, a través de un portafolio electrónico. La información se recolectó mediante grupos focales, entrevista estructurada y documentación. Los resultados mostraron que la frecuencia y niveles de reﬂexión no experimentaron cambios signifcativos; pero en opinión de los estudiantes, se reconoce al portafolio electrónico como una herramienta de utilidad que les ayuda en sus procesos de práctica. A partir de los hallazgos se concluye que, es prioritario atender a los obstaculizadores de las reﬂexiones pedagógicas entre los alumnos, promoviendo estas últimas durante toda su formación.

Conocimiento Educactivo, Vol. 2, 2015: 11-26
El uso de la pizarra digital interactiva en el proceso enseñanza-aprendizaje en la Educación Superior
Authors: Hernández Monterrosa Antonia Larissa
Published: February 2018

En lo concerniente a tecnologías de información y comunicación (TIC), existe una variedad de recursos potencialmente utilizables para hacer el desarrollo del proceso de enseñanza aprendizaje más dinámico e interesante. La pizarra digital interactiva (PDI) es una opción relativamente nueva en el contexto educativo, de la cual existen una amplia variedad en el medio: pizarras digitales táctiles con malla; pizarras digitales electromagnéticas con lápiz; pizarras digitales táctiles por infrared; y pizarras digitales por ultrasonidos-infrarroja con lápiz. Sobre esta última se estudió su funcionamiento como recurso didáctico, además de su implementación en el desarrollo de metodologías que promuevan la innovación pedagógica. También se verificaron aspectos cuantitativos y cualitativos que permitieran visualizar el rendimiento académico de los estudiantes. Para ello se empleó el estudio de caso evaluativo como metodología de investigación.

Se concluye que, la PDI es un recurso que ayuda al aprovechamiento de las clases, ya que permite la creación de actividades como mapas conceptuales, inserción de documentos, videos e imágenes para que los estudiantes interactúen y su aprendizaje sea significativo. Otro aspecto importante es que al usar este tipo de recursos, el docente mejora su práctica pedagógica.

Conocimiento Educactivo, Vol. 2, 2015: 65-78
La Alfabetización Informacional (ALFIN), usando Plataforma Virtual de Enseñanza y Aprendizaje en Educación Superior
Authors: Cordeiro de B Isabel C. , Mancilla B. María T. , Reyes R. Grisneldy M. , Lara E. Marisa A.
Published: February 2018

Este artículo da cuenta del desarrollo del proyecto, “Plan de mejoramiento de los recursos de aprendizaje, usando nuevas tecnologías en los tres Campus de la Universidad de Los Lagos”, en el marco del proyecto MECESUP ULA 1109, denominado Programa de mejoramiento de la calidad y equidad de la Educación Superior. Las acciones de este proyecto se focalizaron en la creación de competencias informacionales, las cuales - una vez finalizada la ejecución y evaluación del proyecto - fueron insertas en los módulos de programas de estudio de asignaturas transversales TIC que ofrece la institución. Las competencias han sido desagregadas en tres niveles de desarrollo, con el fin de facilitar su aprendizaje. Para cada nivel de las competencias se asocian los contenidos implicados en el desarrollo de las habilidades antes mencionadas, con sus correspondientes resultados de aprendizaje.

Durante un semestre académico, las competencias, niveles de logro, contenidos, habilidades y resultados de aprendizaje, se incorporaron en las asignaturas transversales TIC, utilizando la Plataforma de Enseñanza y Aprendizaje (PLATEA) de la institución, a modo de pilotaje. Por otra parte, se resalta el compromiso social de las bibliotecas universitarias para educar a través de ALFIN, colaborando en el desarrollo de este tipo de competencias. En este sentido, los bibliotecólogos, agregando a su trabajo tradicional de Procesos Técnicos, Referencia y Circulación, apoyan la labor educativa, aportando junto a los docentes a los procesos formativos de los estudiantes.

Se explicita que para promover el desarrollo de competencias informacionales en los estudiantes universitarios, es necesario el trabajo colaborativo entre bibliotecólogos y docentes. Además, se describe el proceso de implementación de ALFIN, los contenidos y algunos resultados.

Conocimiento Educactivo, Vol. 3, 2016: 33-54
The "Virtuous Circle" Between Corporate Social Performance and Corporate Financial Performance in the European Banking Sector
Authors: Bussoli Candida , Conte Danilo
Published: February 2018

This paper analyses the relationship between Corporate Social Performance (CSP) and Corporate Financial Performance (CFP) in the European banking sector. The good management approach and the slack resources approach have been tested, and the paper aims to verify the existence of a "virtuous circle" between the two performance measures. The econometric analysis, based on panel data, is performed on a sample of 71 listed banks (EU28) in the period between 2011 and 2015. The main findings show a positive influence of CSP on CFP, confirming the good management approach. However, the results demonstrate a negative influence of CFP on CSP, which generates the impossibility of confirming the theoretical assumptions of the slack resources approach. Therefore, the existence of a "virtuous circle" deriving from the integration of the two approaches is not supported.
Assessment of the Quality of Electronic Administrative Services in a Greek Higher Education Institution: Α Case Study
Authors: Papanthymou Anastasia , Darra Maria
Published: February 2018

The basic aim of this paper is to investigate the perceptions, attitudes and experiences of the students of the Department of Primary Education of the University of the Aegean regarding the quality of the provided services to them by the Secretariat of Administrative Electronic Services. The survey was conducted during the second semester of the academic year 2016-2017 with the use of an anonymous written questionnaire which was completed by 128 undergraduate students of the Department of Primary Education of the University of the Aegean. The results of the survey show that students primarily consider as the most important service for them the department’s website and the service Studentsweb. The least important service for them is the communication platform uniway for mobiles. Also, the degree of satisfaction with electronic administrative services is related to the criteria: availability, ease of use, good organization, responsiveness of services to the needs and expectations of students, and the degree of information. Moreover, problems such as "Mistakes about courses’ grades" and "Unsuccessful academic books’ registration" appears to have a negative impact on the degree of satisfaction of students with the corresponding services in which the problems occur. The findings of this research can be useful to the administrative staff and faculty of the University of the Aegean as they reveal the dimensions of electronic administrative services that are important and effective and satisfy or create problems for students.
Developing a measure for health professionals’ attitudes toward veterans
Authors: Knopf-Amelung Sarah , Brommelsiek Margaret , Peterson Jane Anthony , Roman Zack , Graybill Tracy Lynn
Published: February 2018

U.S. veterans have complex healthcare needs that require professionals who are properly trained to address these issues. However, little is known about the attitudes that nurses and other professionals have toward veteran patients, particularly those working in community-based settings where it is unlikely training on veterans’ issues has occurred. Understanding health professionals’ attitudes toward caring for veterans is an important step in developing a workforce that is knowledgeable and willing to serve this complex and growing population. The purpose of this study was to develop and validate the Health Professionals’ Attitudes Toward Veterans (HPATV) scale, which explores attitudes regarding military cultural sensitivity and awareness, provision of care to veteran patients, and the prominent veterans’ health issues. The HPATV was developed across several phases, including review of existing measures and literature regarding veterans’ health and attitude structure, hypothesis of a factor structure, identification of a theoretical framework for attitude construction, item generation, 3-round Delphi survey to refine items and test content validity, piloting the measure among health professions students, and exploratory (EFA) and confirmatory factor analysis (CFA). Following CFA, the final 14-item scale revealed 3 latent factors to describe health professionals’ more nuanced attitudes toward working with veteran patients: culture, care, and health. The HPATV is a validated and readily available tool for needs assessment, quality improvement, and evaluation. Use of this tool will help increase understanding of these culture, care, and health domains and generate quality improvement initiatives based on them—ultimately benefiting veteran patients through more sensitive, patient-centered care.
Simultaneous Acute Femoral Deformity Correction and Gradual Limb Lengthening Using a Retrograde Femoral Nail: Technique and Clinical Results
Authors: Iobst Christopher A. , Rozbruch S. Robert , Nelson Scott , Fragomen Austin
Published: February 2018

Introduction:

Patients with limb-length discrepancies often have concomitant deformity. We describe the outcomes of acute, fixator-assisted deformity correction with gradual lengthening using the retrograde femoral Precice nail (NuVasive).

Methods:

We analyzed a retrospective series of 27 patients in whom an external fixator was combined with a Precice nail to correct angular or rotational deformity and limb-length discrepancy. The fixator was applied temporarily to restore normal alignment. The Precice nail was inserted and locked in place to hold the correction, with gradual restoration of limb length.

Results:

The 27 patients (mean age, 28 years) had a mean follow-up of 13 months. Secondary deformities were mainly valgus (15 patients) and varus (10 patients). Postoperatively, 93% of patients had correction of limb length to within 3 mm of the discrepancy (mean lengthening, 30 mm). Mechanical axis deviation was corrected to within 8 mm of neutral (ie, zero) in 81% of patients. The mechanical lateral distal femoral angle was corrected to a mean of 88° postoperatively. Final Association for the Study and Application of Methods of Ilizarov (ASAMI)–Paley scores were excellent for 96% of patients.

Discussion:

The use of intramedullary lengthening nails has revolutionized the field of limb lengthening. The results of our study show that a retrograde femoral Precice nail can be used safely and accurately to correct both limb-length discrepancy and deformity with minimal complications. The benefits of using this implant include the ability to maintain knee range of motion during the lengthening process. Rapid bone healing allows a relatively fast return to weight-bearing ambulation.

Conclusions:

The Precice nail was effectively used to correct both limb-length discrepancy and deformity, with excellent overall outcomes. This surgical technique may help avoid the complications that can occur with prolonged postoperative use of an external fixator.

Level of Evidence:

Level IV retrospective study
Elimination of Preoperative Flexion Contracture as a Contraindication for Unicompartmental Knee Arthroplasty
Authors: Purcell Richard L. , Cody John P. , Ammeen Deborah J. , Goyal Nitin , Engh Gerard A.
Published: February 2018

Introduction:

Unicompartmental knee arthroplasty (UKA) is an effective alternative to total knee arthroplasty (TKA) for the management of unicondylar osteoarthritis. Historical contraindications limit patients’ eligibility for UKA. However, recent reports have suggested that some contraindications may not be absolute. This study evaluates preoperative flexion contracture with regard to UKA.

Methods:

This study was a retrospective review of 53 patients with preoperative flexion contracture between 11° and 20° who underwent fixed-bearing UKA and a matched cohort of 53 patients who underwent cruciate-retaining TKA.

Results:

Preoperatively, the average flexion contracture was 13.8° in the UKA group and 14.1° in the TKA group (P = 0.42). Mean preoperative motion was greater in the patients treated with UKA (106°) than in those treated with TKA (97°; P < 0.001). Postoperatively, patients who underwent UKA had greater motion than patients who underwent TKA had (121° versus 113°; P < 0.01). Residual flexion contracture was greater in the UKA group (4.1°) than in the TKA group (2.1°; P = 0.02). The two groups demonstrated similar improvements in Knee Society clinical scores (P = 0.32). However, patients treated with UKA demonstrated higher Knee Society functional scores, compared with patients treated with TKA (86 versus 75; P = 0.03).

Discussion:

Although residual flexion contracture was worse after UKA, this group had similar clinical improvement, greater postoperative motion, and greater function scores, compared with the matched TKA group. Preoperative flexion contracture >5° may not be an absolute contraindication to UKA.

Conclusion:

The contraindications to UKA regarding flexion contracture may not be as absolute as previously thought. Larger, prospective studies are needed to generalize these findings to a wider population.
Anxiety and depression in patients with chronic obstructive pulmonary disease and their relation to serum vitamin D levels
Authors: Kocakaya Derya , Olgun Yıldızelı Sehnaz , Kocakaya Ozan , Arıkan Huseyin , Eryuksel Emel , Eryuksel Emel
Published: February 2018

Objectives: To determine whether serum vitamin D levels wererelated to the prevalence of anxiety and depression among patientswith chronic obstructive pulmonary disease (COPD), as well as theirspirometry parameters, disease severity, and other clinical findings.Materials and Methods: Ninety-two stable patients withCOPD aged over 18 years with no exacerbations in the previousmonth were included. Symptom severity was assessed using themodified Medical Research Council (mMRC) dyspnea scale andCOPD Assessment Test (CAT) scores. Spirometry tests wereperformed and previous hospitalization histories were recordedto determine ABCD groups of the patients according to theircombined COPD assessments. Their Body mass index, airflowObstruction, Dyspnea and Exercise capacity (BODE) indices werecalculated and the Hospital Anxiety and Depression Scale (HADS)was administered. Serum vitamin D levels were determined usingimmune electrochemiluminescence.Results: According to the HADS scores, 16 patients (17.4%) hadthe risk of anxiety and 29 (31.5%) had the risk of depression. Therisk of anxiety differed significantly (P= 0.016 Fischer’s exact test)between the ABCD groups. Anxiety scores were positively correlatedwith both mMRC (r= 0.315; P= 0.002) and CAT (r= 0.445; P= 0.000)scores. Similarly, depression scores correlated positively with mMRC(r= 0.249; P= 0.017) and CAT (r= 0.373; P= 0.000) scores. Neitheranxiety nor depression scores were significantly correlated with % ofpredicted FEV1 (p= 0.339, P= 0.671). Serum vitamin D levels wereinversely correlated with anxiety (r= -0.215; P= 0.039) and depression(r= -0.244; P= 0.019) scores. Anxiety scores were positively correlatedwith BODE although not statistically significantly (r= 0.199; P= 0.058).Conclusion: A negative correlation was revealed betweenserum vitamin D levels and HADS scores, and symptom scoreswere positively correlated to HADS scores, independent of % ofpredicted FEV1.
A very rare case of cervicothoracic vertebral synostosis spanning eight adjacent segments: congenital vs acquired
Authors: Cengiç İsmet , Türeli Derya , Altaş Hilal , Buğdaycı Onur
Published: February 2018

Cervical roentgenogram revealed a long-segment cervicothoracicvertebral fusion spanning 8 adjacent spinal levels. The patient wasevaluated with computed tomography (CT) and magnetic resonance(MR) imagings of the spine, electromyography (EMG) and growthdifferentiation factor 6 (GDF6) gene mutation analysis. Imagingfindings were atypical for congenital block vertebrae and therewas no GDF6 mutation. A revision of very old medical records andpatient’s recollections revealed long-term stay in sanatorium forrehabilitation of chronic partially-treated brucella spondylodiscitisduring adolescence. Block vertebrae spanning several levels havepreviously been reported; but, this is the first report of an acquiredcervicothoracic fusion spanning 8 adjacent vertebral bodies.
Tidal Flat Depositional Response to Neotectonic Cyclic Uplift and Subsidence (1–2 m) as Superimposed on Latest-Holocene Net Sea Level Rise (1.0 m/ka) in a Large Shallow Mesotidal Wave-Dominated Estuary, Willapa Bay, Washington, USA
Authors: Peterson Curt D. , Vanderburgh Sandy
Published: February 2018

The late-Holocene record of tidal flat deposition in the large shallow Willapa Bay estuary (43 km in length), located in the Columbia River Littoral Cell (CRLC) system (160 km length), was investigated with new vibracores (n=30) and gouge cores (n=8), reaching 2–5 m depth subsurface. Reversing up-core trends of muddy sand to peaty mud deposits in marginal tidal flat settings demonstrate episodic submergence events resulting from cyclic tectonic uplift and subsidence (1–2 m) in the Cascadia subduction zone. These short-term reversals are superimposed on longer-term trends of overall sediment coarsening-up, which represent the transgression of higher-energy sandy tidal flats over pre-existing lower-energy tidal flat mud and peaty mud deposits in late-Holocene time. Fining-up trends associated with channel lateral migration and accretionary bank deposition occurred only infrequently in the broad intertidal flats of Willapa Bay. Vibracores and gouge cores were dated by 14C (n=16) and paleo-subsidence event contacts (n=17). Vibracore median probability 14C ages ranged from 0 to 6,992 yr BP and averaged 2,174 yr BP. Dated sample ages and corresponding depths of tidal flat deposits yield net sedimentation rates of 0.9–1.2 m ka-1, depending on the averaging methods used. Net sedimentation rates in the intertidal flat settings (~1.0 m ka-1) are comparable to the rate of net sea level rise (~1.0 m ka-1), as based on dated paleo-tidal marsh deposits in Willapa Bay. Reported modern inputs of river sand (total=1.77x104 m3 yr-1), from the three small rivers that flow into Willapa Bay, fall well short of the estimated increasing accommodation space (1.9x105 m3 yr-1) in the intertidal (MLLW-MHHW) setting (1.9x108 m2 surface area) during the last 3 ka, or 3.0 m of sea level rise. The under-supply of tributary sand permitted the influx of littoral sand (1.1x105 m3 yr-1) into Willapa Bay, as based on the net sedimentation rate (~1.0 m ka-1) and textural composition (average 60 % littoral sand) in analyzed core sections (n=179). The long-term littoral sand sink in Willapa Bay’s intertidal setting (55 % of total estuary area) is estimated to be about 5 % of the Columbia River supply of sand to the CRLC system, and about 30% relative to the littoral sand accumulated in barrier spits and beach plains during late-Holocene time. A 2.0 m rise in future sea level could yield a littoral sand sink of 2.2x108 m3 in the Willapa Bay intertidal setting, resulting in an equivalent shoreline retreat of 600 m along a 50 km distance of the barrier spit and beach plains that are located adjacent to the Willapa Bay tidal inlet. Willapa Bay serves as proxy for potential littoral sand sinks in other shallow mesotidal estuary-barrier-beach systems around the world following future global sea level rise.
Is Bronchoscopy Always Justified in Diagnosis of Haemoptysis?
Authors: Torbiarczyk Justyna , Sobczak Patryk , Torbiarczyk Katarzyna , Miłkowska-Dymanowska Joanna , Antczak Adam , Górski Paweł , Białas Adam , Piotrowski Wojciech
Published: February 2018

Introduction: Fiber-optic bronchoscopy (FOB) is commonly performed in the first line in diagnostic process of haemoptysis. However, lots of evidences suggest that in haemoptysis FOB do not always provide additional, useful information to radiological diagnostics. Therefore, this study aimed to evaluate the validity of performing FOB as a method of choice in first line diagnostics of haemoptysis. Material and methods: Data comprised consecutively collected results from patients referred for FOB assessment for clinical purposes were retrospectively analysed. We included all examinations, which were performed due to haemoptysis as the only indication, excluding any other lung-related conditions. Results: 114 patients were finally included to the study. The median age was 59 (IQR: 46–64.75). Active bleeding was visualized during examination of 13 (11.4%) patients. Patients with active bleeding did not differ significantly according to age: 59 (54–69) vs. 59 (45–64) years; W = 532.5, p-value = 0.27, and gender: c2 = 1.68, p-value = 0.2. On the other hand, in 29 (25.44%) patients, FOB revealed no visible abnormalities. This subgroup of patients was significantly younger — 46 (34–62) years vs. 60 (53–67) years; W = 782, p-value = 0.003. Conclusion: Low number of visualized active bleeding sites suggest overuse of bronchoscopy in diagnosis of haemoptysis. Indications for this examination should be reconsidered especially in young patients with non-massive haemoptysis.
Kidney for Sale by Owner
Authors: Cherry Mark J. ,   Philosophy Documentation Center
Published: February 2018

This paper defends an in principle understanding of the authority of persons over themselves and, in consequence, argues for significant limits on morally permissible state authority. It also defends an account of the limits of permissible state action that distinguishes between (a) the ability of persons to convey authority to common projects and (b) what may be judged virtuous, good, safe, or proper to do. In terms of organ transplantation policy, it concludes that it is morally acceptable, and should be legally permissible, for individuals to sell one of their kidneys while living, pocketing the cash to use as that person sees fit to advance their own understanding of their own best interests. Morally objectionable policy proposals, I argue, are not those that encourage individuals to sell a redundant kidney while living or families to sell the organs of a recently deceased loved one, but those that seek coercively to confiscate the organs of the recently deceased. Recognizing the authority of persons over themselves, and their ability to convey moral authority to common projects, including the sale of human organs for transplantation, would shed light on the medical marketplace and clarify public policy, while increasing the efficiency and effectiveness of procuring human organs for transplantation.
Consequences and Kidneys
Authors: Koplin Julian J. ,   Philosophy Documentation Center
Published: February 2018

Kidney for Sale by Owner discusses a range of different arguments that can be offered in defence of live donor kidney markets. Although Cherry’s case for establishing such markets does not rest on consequentialist considerations, Cherry nonetheless suggests that allowing the sale of organs would have net positive consequences. He argues that both renal failure patients and people living in poverty could benefit from participating in the market, and further claims that a legal trade in organs would not shape society in harmful ways. This paper argues that the likely consequences of establishing an open market in kidneys are less benign than Cherry suggests. Specifically, I argue that a live donor kidney market could plausibly harm sellers, give rise to harmful pressures to participate in the market, and reinforce unjust political and social structures. I conclude by considering the implications of these arguments for the organ market debate.
International economic development: Principal Internet resources
Authors: Ettinger David
Published: February 2018

From attempts to uplift millions of peoples from the throes of abject poverty and starvation to global assistance programs to benefit developing countries’ transition into viable civil societies, international economic development issues dominate the international agenda.
People in the News
Authors: Galloway Ann-Christe
Published: February 2018

Linda ZellmerRobert McInnesSarah CarterRobert  CorrellEmily FrankSarah HooverHayley JohnsonJessica KirschnerMaria KoshuteMegan LounsberryKelly Durkin RuthSara SchumacherNick SkaggsMelissa SmithKate ThornhillScott ZieglerAnne BeaubienBee Gallegos
Apuntes sobre el ceremonial de nombramiento de Franco como jefe del estado
Authors: Pino Abad Miguel
Published: February 2018

Desde que se produjo el Alzamiento militar el 18 de julio de 1936 y hasta que transcurrieron varias semanas, los generales que lo apoyaron no tenían claro si lo más recomendable era instaurar o no la unificación del mando militar, como forma de conseguir una mejor estrategia en la victoria de la guerra civil recién comenzada. Fue el 21 de septiembre cuando se adoptó la decisión de encomendar la jefatura del Ejército a un solo general, Francisco Franco, quien se convirtió en “generalísimo de las fuerzas nacionales de tierra, mar y aire y general jefe de los ejércitos de operaciones”. A partir de ese instante, quedaba por concretar las atribuciones que llevaría anexas el cargo de “generalísimo”. Tras diversas discusiones, Franco se hizo cargo de la Jefatura del Estado el 1 de octubre en la Capitanía General de Burgos, en una ceremonia en la que el presidente de la Junta de Defensa Nacional procedió a transmitirle los poderes. En la presente comunicación se trata de analizar los pormenores de tal ceremonia, las primeras palabras de Franco como flamante Jefe del Estado y la repercusión que todo ello tuvo en la prensa de la época. Since the military uprising occurred on July 18, 1936 and until several weeks passed, the generals who supported him were unclear if it was more advisable to establish whether or not the unification of the military command, as a way of getting a better strategy the victory of the civil war has just begun. It was on September 21 when the decision to entrust the leadership of the army to a single general, Francisco Franco, who became "generalissimo of the national forces of land, sea and air and commanding general of the armies of operations" was adopted. From that moment, it remained to realize the powers attached lead the charge of "generalissimo". After several discussions, Franco took over the presidency on 1 October in the Captaincy General of Burgos, in a ceremony in which the president of the National Defense Council proceeded to transmit the power. In this communication it is to analyze the details of this ceremony, the first words of Franco as head of state brand and the impact all this had on the press of the time.
Gestión de la comunicación institucional: el caso del Consejo Regulador de la Denominación de Origen «Jerez-Xérès-Sherry»
Authors: Pulido Polo Marta , Sampalo Esther
Published: February 2018

Las relaciones públicas constituyen un elemento fundamental para la gestión de La comunicación institucional. Desde esta perspectiva, el objetivo principal de la presente investigación es observar la evolución del comportamiento comunicacional que en los últimos años a llevado a cabo el Consejo Regulador de Vinos y Vinagres de Jerez para cuantificar la presencia de técnicas de relaciones públicas. Para responder a este objetivo se utiliza una metodología sustentada en el estudio de caso (modalidad de caso único) y en la triangulación metodológica intramétodos (GONZÁLEZ RÍO, 1997). Los resultados del análisis revelan un modelo comunicativo bidireccional basado en el empleo de técnicas publirelacionistas.Public relations is a fundamental element for the management of institutional communication. From this perspective, the main objective of this research is to observe the evolution of the communicational behavior that, in recent years, has been developed by the Wine and Vinegar Regulatory Council of Jerez to quantify the presence of public relations techniques. In order to respond to this objective, it is used a methodology based on the case study (single case modality) and intra-method methodological triangulation (GONZÁLEZ RÍO, 1997). The results of the analysis reveal a bidirectional communicative model based on the use of public relation techniques.
RESEÑA de: Ryan Avent. "La riqueza de los humanos"; Ed. Ariel, Barcelona, 2017. ISBN: 978-84-344-2541-5
Authors: Bordas Martínez Julio
Published: February 2018

-
Inverse Functions: Why Switch the Variable?
Authors: Teuscher Dawn , Palsky Kylie , Palfreyman Charlie Y.
Published: February 2018

An “undoing” process can improve students' conceptual understanding.
Dancing Our Way to Geometric Transformations
Authors: Leonard Alison E. , Bannister Nicole A.
Published: February 2018

Students slide into reflections, rotations, and translations and take giant leaps forward in their geometric understanding.
Assembling the Puzzle of Mathematical Strengths
Authors: White Dorothy Y. , Gomez Carlos Nicolas , Rushing Fred , Hussain Nicholas , Patel Kristina , Pratt Jason
Published: February 2018

A professional learning community, or PLC, identifies students' mathematical strengths and shows how the PLC uses the information to support students as mathematical thinkers and doers.
Using Plot Twists to Engage Learners
Authors: Ryan Laura E. , Dietiker Leslie
Published: February 2018

To deepen students' mathematical interest and knowledge, the authors use a mathematical story-planning framework to design and enact a fifth-grade measurement lesson.
A questão ambiental em cursos de administração de Mossoró (RN): documentos e percepções de coordenadores de curso analisados
Authors: Oliveira Roberto Porfírio de Sousa , Enéas Ana Paula de Sousa , Rabelo Livia Nascimento , França Djanilton Alves de
Published: February 2018

Um dos instrumentos estratégicos e essenciais para o modelo de desenvolvimento sustentável é a Educação Ambiental (EA). Sendo assim, o objetivo geral deste trabalho é analisar a Educação Ambiental (EA) em bacharelados presenciais de Administração de quatro Instituições de Ensino Superior (IES) de Mossoró/RN. E objetivos específicos deste são: verificar o posicionamento dos coordenadores de curso sobre a EA nos seus respectivos cursos; e, verificar pressupostos de EA nos respectivos Projetos Pedagógicos dos Cursos (PPC´s). O estudo foi direcionado para os cursos de graduação presencial em administração de quatro IES de Mossoró/RN, sendo uma Universidade Federal, uma Estadual, uma Privada e uma Faculdade. Foram entrevistados os coordenadores dos cursos e analisados os documentos. Apesar dos cursos pesquisados apresentarem a realização de práticas sustentáveis e o ensino da temática em algumas disciplinas, observou-se que as ações são pontuais e não desenvolvidas de forma transversal como preconiza a Lei 9.795/1999, o que poderia ser procedente do tipo de comprometimento dos atores envolvidos.
COMPLIANCE WITH ENERGY SAVINGS AND LABOUR LEGISLATION REQUIREMENTS IN WIDE-OPEN INDUSTRIAL BUILDINGS REFURBISHMENT
Authors: GIL LOPEZ TOMAS , GALVEZ HUERTA MIGUEL ANGEL , CASTEJON NAVAS JUAN , GERARD O'DONHOE PAUL
Published: February 2018

Given the continuing requirements of the EU in terms of reducing the emissions of gases and improving energy efficiency, the refurbishment of existing buildings is of particular importance, considering that 40% of the energy is consumed in building sector. With respect to partially-open industrial buildings, air conditioning while refitting leads to increase of productivity, for it maximizes the working hours. Nevertheless, due to the resulting energy consumption increase, it seems necessary to clarify what would be the most efficient way of air conditioning this type of buildings, considering at the same time its economic viability. Therefore, the study presents an integrated approach to HVAC (Heating, Ventilation and Air Conditioning) systems to identify the most adequate of them in the case of an existing workshop. An application to a workshop in Carmona (Seville, Spain) shows that a highly efficient HVAC system, along with a climate separation by means air curtains, makes possible to keep the indoor thermal conditions of the premises between the mandatory ranges prescribed by the work legislation during much longer periods of time (reducing the hours out of compliance from 56% to 2%), with a reasonable energy consumption level (79.63% lower than a conventional system).

Keywords: wide-open industrial buildings; air curtain; climate separation; HVAC systems; energy efficiency
DESIGN ASPECTS AND THERMO-­ACOUSTIC PERFORMANCE OF PRECAST CONCRETE FAÇADES FOR INDUSTRIAL BUILDINGS
Authors: BARBA PEREZ ALFONSO , VILLANUEVA LLAURADO PAULA , FERNANDEZ GOMEZ JAIME , GARCIA LOPEZ DE LA OSA GREGORIO
Published: February 2018

Innovation is a constant issue regarding precast concrete, with the aim of optimising the properties of products such as façade panels. Together with continuous development of new textures and finishes, acoustic performance and fire resistance have traditionally been regarded as the most limiting parameters in the design of façade panels for industrial buildings. Conversely, the concern for enhancing the thermal transmittance has but recently been included as a parameter, largely due to the need to increase the versatility of industrial buildings. As a result, solutions enhancing the thermal performance are developed, but may have negative effect on the mechanical properties of the panels. This text presents a state-of-the-art review of the industry, indicating common design values as well as optimization criteria that designers can use.

Keywords: precast concrete, façade panels, industrial buildings, thermoacoustic properties, optimization
COMPARATIVE STUDY OF THE OPTICAL PROPERTIES EFFECT OF THE FACADE EXTERIOR COATING ON THE BUILDING ENERGY DEMAND
Authors: GAVIRA MARIA , PEREZ QUIÑONEZ GLORIA , ACHA CONSOLACION
Published: February 2018

There are different technologies to optimize the use of solar energy in construction systems, with the aim of improving the building energy efficiency and also to reduce the effect of solar radiation on the exterior coatings, which in turn affects the urban areas warming. Among these technologies, chromogenic devices based on materials whose optical properties can be reversibly modified by some external stimulus have become relevant. These materials are especially interesting because they adapt to variations of solar radiation during the day and throughout the different seasons of the year.
The facade coating may have different types of texture or color, which determine specific optical properties. One of these properties is the absorptance, which determines the amount of solar radiation absorbed by the material with respect to the incident radiation.
The effect of the absorptance on the building energy demand will be conditioned by other parameters that also influence it, such as the climatic zone, orientation and thermal properties of the wall.
In the work presented, the influence of the optical properties of three types of exterior facade coating on the building energy demand is analyzed. The materials chosen for this study are a conventional white Portland cement, a belitic cement synthesized in the laboratory by a process of low energy and low CO2 emissions and a brick representative of a brickwork wall, presenting the first two a more polished finish and clearer colors than the second.
The final objective of this study is to determine the parameters that optimize the utilization of the optical properties of the studied coatings in the building energy efficiency.
INFLUENCE OF THERMAL CYCLES ON THE MECHANICAL BEHAVIOUR OF CONCRETE OF THERMO-ACTIVATED STRUCTURES
Authors: HOSOKAWA MENENDEZ KENZO , COBO ESCAMILLA ALFONSO , PRIETO BARRIO MARIA ISABEL , MARTINEZ PEREZ INMACULADA
Published: February 2018

This article examines the behavior of concrete when subjected to thermal cycles, thus, imitating the process of thermal loading and unloading in thermo-activated structures, throughout their in-use period. Cylindrical specimens have been performed to study the behavior to compression and tensile strength, and prismatic specimens were performed to flexural test strength. The analysis of results shows that in thermo-active structures subjected to thermal cycles, temperature variation influences on the evolution of concrete mechanical properties, not staying constant over time. Likewise, a greater amount of reinforcement to withstand compression is necessary, as well as the reformulation of calculation methods outlined in the concrete standard EHE, so that analysis of this type of structures can be performed on the safe side, regarding both stresses and strains.

Keywords: ? concrete, temperature-related & thermal effects, thermo-active structures, compression test, splitting tensile test, flexural test
EXPERIMENTAL STUDY OF LIGHTWEIGHT AND CONVENTIONAL CONCRETE MULTILAYER BEAMS
Authors: OLMEDO ZAZO FERNANDO ISRAEL , VALIVONIS JUOZAS , COBO ESCAMILLA ALFONSO
Published: February 2018

Lightweight concrete (LWC) has advantages over conventional concrete (CC). For the same strength value, LWC has a lower weight so the load over the structure is reduced. However, CC produces shorter deflections for the same load. The combined use of both materials could optimize the best behavior of each.
The goal of this paper is to study experimentally the multilayer LWC and CC beam behaviour. It is compared against monolithic LWC and CC beams.
Keywords: Lightweight concrete, multilayer beam
THE MAKER MOVEMENT' S APPROACH TO INDUSTRY. A LOOK FROM THE OD&M PROJECT
Authors: MARTINEZ RODRIGUEZ RODRIGO , RETEGI URIA AIUR
Published: February 2018

More than a decade ago - in 2005 - the concept of maker became popular in reference to those who enjoy creating independently, driven by curiosity and self-learning. The fall of the traditional barriers between content producers and their consumers, make the first decade of the 21st century resonate with terms such as collaborative economics or DIY (Do It Yourself). Thus, in 2013, the publication "The Maker Movement Manifesto" introduces this movement, defining maker as anyone who can develop and create new products, bringing positive changes in society and obtaining an economic benefit for it.
DECISION CRITERIA TO SELECT A SUITABLE CRITICALITY ASSESSMENT TECHNIQUE
Authors: VIVEROS GUNCKEL PABLO , CRESPO MARQUEZ ADOLFO , BARBERA MARTINEZ LUIS , GONZALEZ-PRIDA DIAZ VICENTE , KRISTJANPOLLER RODRIGUEZ FREDY
Published: February 2018

The occurrence of events associated to failures in any industrial plant may lead to some increases in overall cost (direct or indirect cost) in the production process. In order to assess and rank events associated with failures, those criteria of importance will depend on the organization and its context. The most used criteria are: Safety, Environment, Production, Costs, Failure Frequency and Mean Time To Repair. Therefore, it is necessary to identify those processes, areas, equipment and components that generate a higher impact on the occurrence of failure or, in other words, those which are potentially critical, where their impact refers to the degree in which the occurrence of the failure may affect the process continuity.
CRYPTOMONEY (BITCOIN) & BLOCKCHAIN
Authors: GARCIA BRINGAS PABLO , PSAILA GIUSEPPE
Published: February 2018

After the publication in the September/October 2017 issue of our DYNA Journal about BLOCKCHAIN: Challenges and Opportunities Beyond Bitcoin, some of our readers asked us several questions that we have addressed to the authors and that they kindly answered us in an accessible way, even for non-specialists. Given the actuality and diverse points of view generated around the topic, we abstain from any judgment of value with respect to the aforementioned products.
Precopulatory behavior and sexual conflict in the desert locust
Authors: Golov Yiftach , Harari Ally , Rillich Jan , Ayali Amir
Published: February 2018

Studies of mating and reproductive behavior have contributed much to our understanding of various animals’ ecological success. The desert locust,Schistocerca gregaria, is an important agricultural pest. However, knowledge of locust courtship and precopulatory behavior is surprisingly limited. Here we provide a comprehensive study of the precopulatory behavior of both sexes of the desert locust in the gregarious phase, with particular emphasis on the conflict between the sexes. Detailed HD-video monitoring of courtship and mating of 20 locust pairs, in a controlled environment, enabled both qualitative and quantitative descriptions of the behavior. A comprehensive list of behavioral elements was used to generate an eight-step ethogram, depicting from first encounter between the sexes to actual copulation. Further analyses included the probability of each element occurring, and a kinematic diagram based on a transitional matrix. Eleven novel behavioral elements are described in this study, and two potential points of conflict between the sexes are identified. Locust sexual interaction was characterized by the dominance of the males during the pre-mounting stage, and an overall stereotypic male courtship behavior. In contrast, females displayed no clear courtship-related behavior and an overall less organized behavioral sequence. Central elements in the sexual behavior of the females were low-amplitude hind-leg vibration, as well as rejecting males by jumping and kicking. Intricate reciprocal interactions between the sexes were evident mostly at the mounting stage. The reported findings contribute important insights to our knowledge of locust mating and reproductive behavior, and may assist in confronting this devastating agricultural pest.
Similar acute physiological responses from effort and duration matched leg press and recumbent cycling tasks
Authors: Steele James , Butler Andrew , Comerford Zoe , Dyer Jason , Lloyd Nathan , Ward Joshua , Fisher James , Gentil Paulo , Scott Christopher , Ozaki Hayao
Published: February 2018

The present study examined the effects of exercise utilising traditional resistance training (leg press) or ‘cardio’ exercise (recumbent cycle ergometry) modalities upon acute physiological responses. Nine healthy males underwent a within session randomised crossover design where they completed both the leg press and recumbent cycle ergometer conditions. Conditions were approximately matched for effort and duration (leg press: 4 × 12RM using a 2 s concentric and 3 s eccentric repetition duration controlled with a metronome, thus each set lasted  60 s; recumbent cycle ergometer: 4 × 60 s bouts using a resistance level permitting 80–100 rpm but culminating with being unable to sustain the minimum cadence for the final 5–10 s). Measurements included VO2, respiratory exchange ratio (RER), blood lactate, energy expenditure, muscle swelling, and electromyography. Perceived effort was similar between conditions and thus both were well matched with respect to effort. There were no significant effects by ‘condition’ in any of the physiological responses examined (all p > 0.05). The present study shows that, when both effort and duration are matched, resistance training (leg press) and ‘cardio’ exercise (recumbent cycle ergometry) may produce largely similar responses in VO2, RER, blood lactate, energy expenditure, muscle swelling, and electromyography. It therefore seems reasonable to suggest that both may offer a similar stimulus to produce chronic physiological adaptations in outcomes such as cardiorespiratory fitness, strength, and hypertrophy. Future work should look to both replicate the study conducted here with respect to the same, and additional physiological measures, and rigorously test the comparative efficacy of effort and duration matched exercise of differing modalities with respect to chronic improvements in physiological fitness.