bluuebunny/crossref_metadata_2025_split huggingface dataset:
Entrevista con el maestro Fernando Cruz Kronfly
Authors: Martinez Fabio 
Published: June 2017

Conocí a Fernando Cruz Kronfly en los claustros de la Universidad Santiago de Cali, que estaba situada en aquella casona del centro de Cali, símbolo emblemático de la cultura caleña. Cruz Kronfly hacía parte de un grupo de intelectuales que fueron llamados a la academia por Álvaro Pío Valencia y Estanislao Zuleta, quienes dirigían los destinos del alma mater. Era un grupo exquisito por donde pasaron: Enrique Buenaventura, Anthony Sampsom, Alcibíades Paredes, Tomás Quintero, Marco Fidel Chávez, Norman Alhach, Evelio Espínola, Luz Helena Giraldo, Mario Díaz, Gladys Conde, Sebastián Solari, Eduardo Serrano y Javier y Rodrigo Navarro, ente otros. Eran los años setenta. Una década donde nadie pensaba en la guerra, en la cultura del crimen y el narcotráfico, y en la debacle del país, que durante cuarenta años iba a arrojar seis millones de víctimas. Ante el miedo que imperó durante estas cuatro décadas, Cruz Kronfly se refugió en la formación de los jóvenes y en el mundo de los libros. Cuarenta años después, y con la ilusión de un acuerdo de paz, que está por cocinarse en el país, hablé con mi maestro y amigo Fernando Cruz Kronfly, en la Librería Nacional del Oeste.
El crimen en la novela negra latinoamericana. "Entre la fascinación y la memoria"
Authors: Valderrama Rengifo James 
Published: June 2017

En el presente artículo académico se realiza un acercamiento a la novela negra Latinoamérica desde dos perspectivas: la fascinación y la memoria. El artículo establece una secuencia crítica que da cuenta de la evolución del género: sus regularidades y sus cambios literarios desde Edgar Allan Poe y Arthur Conan Doyle hasta los más destacados representantes del género negro en Latinoamérica, marcando la condición contemporánea de esta apropiación y desarrollo de este tipo de novelas. Posteriormente se postulan las claves de su análisis tomando referencias obras como Abril rojo del peruano Santiago Roncangliolo, Scorpio City del colombiano Mario Mendoza y Plata quemada de Ricardo Piglia, de Argentina. Estas obras finalmente se proponen como un ejercicio de memoria donde ocurre un choque de ficciones en el que los hechos pasados adquieren un orden distinto porque aparecen otras voces, otros informes, testimonios, otros crímenes, otras víctimas, otros asesinos, otros detectives, etc. En este orden distinto, las marcas previas de la memoria chocan con las marcas nuevas que propone el relato. El centelleo resultante de ese choque de ficciones permite el acceso a otro conocimiento sobre el pasado y sus deudas con el presente y el futuro.
Cerebral Hemodynamics in Mild Cognitive Impairment: A Systematic Review
Authors: Beishon Lucy , Haunton Victoria J. , Panerai Ronney B. , Robinson Thompson G. 
Published: June 2017

Background: The incidence of dementia is projected to rise over the coming decades, but with no sensitive diagnostic tests available. Vascular pathology precedes the deposition of amyloid and is an attractive early target. Objective: The aim of this review was to investigate the use of cerebral hemodynamics and oxygenation as a novel biomarker for mild cognitive impairment (MCI), focusing on transcranial Doppler ultrasonography (TCD) and near-infrared spectroscopy (NIRS). Methods: 2,698 articles were identified from Medline, Embase, PsychINFO, and Web of Science databases. 306 articles were screened and quality assessed independently by two reviewers; 26 met the inclusion criteria. Meta-analyses were performed for each marker with two or more studies and limited heterogeneity. Results: Eleven studies were TCD, 8 NIRS, 5 magnetic resonance imaging, and 2 positron/single photon emission tomography. Meta-analyses showed reduced tissue oxygenation index, cerebral blood flow and velocity, with higher pulsatility index, phase and cerebrovascular resistance in MCI compared to controls. The majority of studies found reduced CO2 reactivity in MCI, with mixed findings in neuroactivation studies. Conclusion: Despite small sample sizes and heterogeneity, meta-analyses demonstrate clear abnormalities in cerebral hemodynamic and oxygenation parameters, even at an early stage of cognitive decline. Further work is required to investigate the use of cerebral hemodynamic and oxygenation parameters as a sensitive biomarker for dementia.
Central Olfactory Dysfunction in Alzheimer’s Disease and Mild Cognitive Impairment: A Functional MRI Study
Authors: Vasavada Megha M. , Martinez Brittany , Wang Jianli , Eslinger Paul J. , Gill David J. , Sun Xiaoyu , Karunanayaka Prasanna , Yang Qing X. 
Published: June 2017

Background: Olfactory deficits are present in early Alzheimer’s disease (AD) and mild cognitively impaired (MCI) patients. However, whether these deficits are due to dysfunction of the central or peripheral olfactory nervous system remains uncertain. This question is fundamentally important for developing imaging biomarkers for AD using olfactory testing. Objective: This study sought to use olfactory functional magnetic resonance imaging (fMRI) to further demonstrate the involvement of the central olfactory system in olfactory deficits in MCI and AD. Methods: We investigated the central olfactory system in 27 cognitively normal controls (CN), 21 MCI, and 15 AD subjects using olfactory fMRI with an odor-visual association paradigm during which a visual cue was paired with lavender odorant (odor condition) or odorless air (no-odor condition). Results: The CN subjects had significantly greater activated volume in the primary olfactory cortex during both the odor and no-odor conditions compared to either the MCI or AD groups ( p < 0.05). No significant differences were observed between the odor and no-odor conditions within each group. No-odor condition activation in AD and MCI correlated with the cognitive and olfactory assessments. Conclusion: The no-odor condition, allowing investigation of activation patterns when the peripheral olfactory system was not directly involved, elicited the same functional response as the odor condition for each of the three groups. Thus, the olfactory activation deficits present in AD and MCI patients are most likely caused by degeneration of the central olfactory nervous system.
Thermal dehydration kinetics and characterization of pandermite
Authors: Senberber Fatma Tugce 
Published: June 2017

Pandermite (Ca4B10O19 7H2O) can be defined as a type of calcium borate hydrate which generally founds in Turkey and USA. It has been identified by using X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and Scanning electron microscope (SEM) during dehydration process. Thermal gravimetry and differential thermal gravimetry (TG/DTG) methods have been applied to investigate the thermal dehydration kinetic of pandermite. The results showed that it lost its crystal water via three-step process approximately between 280°C and 550°C temperatures. Activation energies (Ea . ) were found as 98.83, 136.86 and 391.24 kJ using Ozawa–Flynn–Wall (OFW) model; 89.82, 133.16 and 399.01 kJ using Kissinger–Akahira–Sunose (KAS) model; and 140.78, 131.01 and 486.22 kJ using Kissinger non-isothermal kinetic model for steps 1, 2 and 3, respectively. At the end of the dehydration process, Pandermite lost its water content and it decomposed to CaB2O4 (powder diffraction file number: 00-009-0247) and B2O3 (powder diffraction file number: 01-072-0626) occurred.
Geodesic Models of Quasi-periodic-oscillations as Probes of Quadratic Gravity
Authors: Maselli Andrea , Pani Paolo , Cotesta Roberto , Gualtieri Leonardo , Ferrari Valeria , Stella Luigi 
Published: June 2017

Abstract
Future very-large-area X-ray instruments (for which the effective area is larger than

m2) will be able to measure the frequencies of quasi-periodic oscillations (QPOs) observed in the X-ray flux from accreting compact objects with sub-percent precision. If correctly modeled, QPOs can provide a novel way to test the strong-field regime of gravity. By using the relativistic precession model and a modified version of the epicyclic resonance model, we develop a method to test general relativity against a generic class of theories with quadratic curvature corrections. With the instrumentation being studied for future missions such as eXTP, LOFT, or STROBE-X, a measurement of at least two QPO triplets from a stellar mass black hole can set stringent constraints on the coupling parameters of quadratic gravity.
Accretion in Radiative Equipartition (AiRE) Disks
Authors: Yazdi Yasaman K. , Afshordi Niayesh 
Published: June 2017

Abstract
Standard accretion disk theory predicts that the total pressure in disks at typical (sub-)Eddington accretion rates becomes radiation pressure dominated. However, radiation pressure dominated disks are thermally unstable. Since these disks are observed in approximate steady state over the instability timescale, our accretion models in the radiation-pressure-dominated regime (i.e., inner disk) need to be modified. Here, we present a modification to the Shakura & Sunyaev model, where the radiation pressure is in equipartition with the gas pressure in the inner region. We call these flows accretion in radiative equipartition (AiRE) disks. We introduce the basic features of AiRE disks and show how they modify disk properties such as the Toomre parameter and the central temperature. We then show that the accretion rate of AiRE disks is limited from above and below, by Toomre and nodal sonic point instabilities, respectively. The former leads to a strict upper limit on the mass of supermassive black holes as a function of cosmic time (and spin), while the latter could explain the transition between hard and soft states of X-ray binaries.
c-REL and IκBNS Govern Common and Independent Steps of Regulatory T Cell Development from Novel CD122-Expressing Pre-Precursors
Authors: Schuster Marc , Plaza-Sirvent Carlos , Matthies Anne-Marie , Heise Ulrike , Jeron Andreas , Bruder Dunja , Visekruna Alexander , Huehn Jochen , Schmitz Ingo 
Published: June 2017

Abstract
Foxp3-expressing regulatory T cells (Tregs) are essential regulators of immune homeostasis and, thus, are prime targets for therapeutic interventions of diseases such as cancer and autoimmunity. c-REL and IκBNS are important regulators of Foxp3 induction in Treg precursors upon γ-chain cytokine stimulation. In c-REL/IκBNS double-deficient mice, Treg numbers were dramatically reduced, indicating that together, c-REL and IκBNS are pivotal for Treg development. However, despite the highly reduced Treg compartment, double-deficient mice did not develop autoimmunity even when aged to more than 1 y, suggesting that c-REL and IκBNS are required for T cell effector function as well. Analyzing Treg development in more detail, we identified a CD122+ subset within the CD25−Foxp3− precursor population, which gave rise to classical CD25+Foxp3− Treg precursors. Importantly, c-REL, but not IκBNS, controlled the generation of classical CD25+Foxp3− precursors via direct binding to the Cd25 locus. Thus, we propose that CD4+GITR+CD122+CD25−Foxp3− cells represent a Treg pre-precursor population, whose transition into Treg precursors is mediated via c-REL.
Sagittal-Plane Knee Moment During Gait and Knee Cartilage Thickness
Authors: Schmitz Randy J. , Harrison David , Wang Hsin-Min , Shultz Sandra J. 
Published: June 2017

Context: Understanding the factors associated with thicker cartilage in a healthy population is important when developing strategies aimed at minimizing the cartilage thinning associated with knee osteoarthritis progression. Thicker articular cartilage is commonly thought to be healthier cartilage, but whether the sagittal-plane biomechanics important to gait are related to cartilage thickness is unknown.Objective: To determine the relationship of a weight-bearing region of the medial femoral condyle's cartilage thickness to sagittal gait biomechanics in healthy individuals.Design: Descriptive laboratory study.Setting: Laboratory.Patients or Other Participants: Twenty-eight healthy participants (15 women: age = 21.1 ± 2.1 years, height = 1.63 ± 0.07 m, weight = 64.6 ± 9.9 kg; 13 men: age = 22.1 ± 2.9 years, height = 1.79 ± 0.05 m, weight = 75.2 ± 9.6 kg).Main Outcome Measure(s): Tibiofemoral angle (°) was obtained via goniometric assessment, thickness of the medial femoral condyle cartilage (mm) was obtained via ultrasound imaging, and peak internal knee-extensor moment (% body weight · height) was measured during 10 trials of over-ground walking at a self-selected pace. We used linear regression to examine the extent to which peak internal knee-extensor moment predicted cartilage thickness after accounting for tibiofemoral angle and sex.Results: Sex and tibiofemoral angle (12.3° ± 3.2°) were entered in the initial step as control factors (R2 = 0.01, P = .872). In the final step, internal knee-extensor moment (1.5% ± 1.3% body weight · height) was entered, which resulted in greater knee-extensor moment being related to greater cartilage thickness (2.0 ± 0.3 mm; R2Δ = 0.31, PΔ = .003).Conclusion: Individuals who walked with a greater peak internal knee-extensor moment during gait had a cartilage structure that is generally considered beneficial in a healthy population. Our study offers promising findings that a potentially modifiable biomechanical factor is associated with cartilage status in a healthy population. Establishing these baseline relationships in uninjured populations may help us to better understand potential factors related to maladaptive gait patterns that predispose a person to adverse changes in the cartilage environment.
Knee Frontal-Plane Biomechanics in Adults With or Without Bone Marrow Edema-Like Lesions After Anterior Cruciate Ligament Injury
Authors: Thomas Abbey C. , Palmieri-Smith Riann M. 
Published: June 2017

Context: Lateral subchondral bone bruises (BBs) occur frequently with anterior cruciate ligament (ACL) injuries. These BBs are associated with pain during weight bearing, leading individuals to increase medial tibiofemoral loading to alleviate pain laterally. Increased medial tibiofemoral loading may precipitate the development or progression of posttraumatic osteoarthritis; however, no in vivo biomechanical data exist to confirm that lateral BBs increase medial tibiofemoral loading as measured by the external knee-adduction moment (KAM).Objective: To determine whether lateral BBs after ACL injury increase the external KAM during walking.Design: Descriptive laboratory study.Setting: University research laboratory.Patients or Other Participants: Eleven volunteers with an ACL injury (age = 20.36 ± 4.03 years, height = 177.60 ± 8.59 cm, mass = 79.70 ± 16.33 kg), 12 with an ACL injury and a lateral BB (ACL + BB; age = 19.25 ± 5.58 years, height = 170.71 ± 9.40 cm, mass = 66.79 ± 11.91 kg), and 12 healthy controls (age = 19.67 ± 5.19 years, height = 173.29 ± 11.58 cm, mass = 67.07 ± 11.25 kg) participated.Intervention(s): We recorded peak KAM during 3 walking trials (1.1 ± 0.6 m/s) in which participants walked over a force platform located in the field of view of a motion-capture system.Main Outcome Measure(s): Peak KAM was calculated during the first half of stance using standard inverse-dynamics analysis, averaged across trials, and examined via 1-way analysis of variance. Knee pain and function were determined from the International Knee Documentation Committee Subjective Knee Evaluation Form and compared among groups via the Kruskal-Wallis test.Results: Peak KAM did not differ among groups (ACL injury = 0.14 ± 0.07 Nm·kg−1·m−1, ACL + BB = 0.21 ± 0.08 Nm·kg−1·m−1, control = 0.20 ± 0.08 Nm·kg−1·m−1; F2,35 = 3.243, P = .052). Knee-pain frequency and severity were greater in the ACL-injury (frequency = 2.55 ± 1.81, severity = 3.36 ± 1.75; both P &lt; .001) and ACL + BB (frequency = 3.58 ± 2.81, severity = 4.08 ± 3.20; both P &lt; .001) groups than in the control group (frequency = 0.00 ± 0.00, severity = 0.00 ± 0.00). Knee function was greater in the control group (100.00 ± 0.00) than in the ACL-injury (59.35 ± 17.31; P &lt; .001) and ACL + BB (46.46 ± 25.85; P &lt; .001) groups.Conclusions: The ACL + BB groups did not walk with a greater external KAM than the ACL-injury or control groups. Thus, lateral tibiofemoral BB did not influence knee frontal-plane loading after ACL injury.
The levels of disclosure relating to mine closure obligations by platinum mining companies
Authors: Sturdy Joline , Cronje Christo J. 
Published: June 2017

Background: Mine closure obligations are economically significant, and the consequences of insufficient mine closure obligations are of public interest. The incidence of acid mine drainage and the high number of ownerless and abandoned mines in South Africa have brought the consequences of insufficient mine closure obligations in the mining sector into the spotlight.Aim: The aim of this study is to establish the extent to which platinum mines listed on the Johannesburg Stock Exchange (JSE) comply with a recommended disclosure framework.Setting: South Africa is the largest producer of platinum in the world. The study covers all platinum mines listed on the JSE.Methods: Using a framework, a census of the annual financial statements, integrated annual reports and sustainability reports or websites was conducted to determine the level of compliance of disclosure relating to mine closure obligations to the recommended disclosure framework.Results: The results show disclosure relating to mine closure obligations of platinum mines listed on the JSE is inconsistent and not sufficient for stakeholders to understand the scope, key assumptions, parameters or reliability of the assessment and calculation of mine closure obligations.Conclusion: The assumptions used to determine mine closure obligations are specialised and multi-disciplinary. The accuracy and reliability of mine closure obligations will improve dramatically through greater transparency and access to information. It is recommended that the JSE listings for mining companies should require a competent person’s report to provide disclosure on assumptions, key values and processes applied to determine the mine closure obligations. Furthermore, it is recommended that the Department of Mineral Resources implements a mechanism of independent assessment of mine closure obligations by experts on an ongoing basis.
Results of a Flipped Classroom Teaching Approach in Anesthesiology Residents
Authors: Martinelli Susan M. , Chen Fei , DiLorenzo Amy N. , Mayer David C. , Fairbanks Stacy , Moran Kenneth , Ku Cindy , Mitchell John D. , Bowe Edwin A. , Royal Kenneth D. , Hendrickse Adrian , VanDyke Kenneth , Trawicki Michael C. , Rankin Demicha , Guldan George J. , Hand Will , Gallagher Christopher , Jacob Zvi , Zvara David A. , McEvoy Matthew D. , Schell Randall M. 
Published: June 2017

ABSTRACT

Background
In a flipped classroom approach, learners view educational content prior to class and engage in active learning during didactic sessions.

Objective
We hypothesized that a flipped classroom improves knowledge acquisition and retention for residents compared to traditional lecture, and that residents prefer this approach.

Methods
We completed 2 iterations of a study in 2014 and 2015. Institutions were assigned to either flipped classroom or traditional lecture for 4 weekly sessions. The flipped classroom consisted of reviewing a 15-minute video, followed by 45-minute in-class interactive sessions with audience response questions, think-pair-share questions, and case discussions. The traditional lecture approach consisted of a 55-minute lecture given by faculty with 5 minutes for questions. Residents completed 3 knowledge tests (pretest, posttest, and 4-month retention) and surveys of their perceptions of the didactic sessions. A linear mixed model was used to compare the effect of both formats on knowledge acquisition and retention.

Results
Of 182 eligible postgraduate year 2 anesthesiology residents, 155 (85%) participated in the entire intervention, and 142 (78%) completed all tests. The flipped classroom approach improved knowledge retention after 4 months (adjusted mean = 6%; P = .014; d = 0.56), and residents preferred the flipped classroom (pre = 46%; post = 82%; P &lt; .001).

Conclusions
The flipped classroom approach to didactic education resulted in a small improvement in knowledge retention and was preferred by anesthesiology residents.
Pedagogies of Academic Writing in Teacher Education: from Epistemology to Practice and back again
Authors: Beighton Christian , Blackman Alison 
Published: June 2017

TThis paper discusses barriers to the development of academic writing, in the area of teacher education in UK higher education . We first situate these issues in a higher education context increasingly defined by new technologies and diverse cohorts of higher education students. Drawing on empirical data obtained from interviews with both students and teachers (N=21), we then critically examine a range of perspectives on the definition, role and function of academic literacy in this contemporary context. Findings include useful insights into the development of writing skills and teacher identity, but they also reveal fundamental differences in the epistemological presuppositions of those teaching academic writing. These accounts are reflected in significant differences in pedagogy, and raise important questions for practice which, although potentially irresolvable, may help to explain some of the difficulties which emerge when trying to teach academic writing. Such fundamental issues, we argue, need to be at least recognized if teachers hope to develop the writing capacity of trainee teachers in an academic context.
Teachers’ perceptions about their practices and needs for improvement: A qualitative research project at the University of Padova
Authors: Aquario Debora , Clerici Renata , Da Re Lorenza , Felisatti Ettore , Mazzucco Cristina , Paccagnella Omar , Serbati Anna 
Published: June 2017

The aim of the paper is to present the results deriving from the qualitative analysis of open-ended questions included in the Prodid Project Questionnaire. Prodid (Teacher professional development and academic educational innovation) is a research project conducted in 2014-2015 at the University of Padova, which aimed at developing strategies to support academic teachers to enhance their teaching competences. The questions were formulated in order to collect teachers’ points of view on excellence and innovation, perceived critical aspects in their teaching practice and the need for support to improve teaching. The analysis was conducted through the use of software Atlas.ti 7 in order to highlight, on the one hand, the strengths and weaknesses of current teaching practices, and on the other hand, the need of support to improve teaching skills and enhance teachers’ professionalism. Findings are presented by illustrating the distributions based on the different Schools in the universities as well as the thematic issues that emerged from teachers’ answers. These results informed the professional development activities organized at the University for junior and senior staff in 2015.