bluuebunny/crossref_metadata_2025 huggingface dataset:
Compresión de baja elasticidad para lesiones traumáticas en contexto de insuficiencia venosa
Authors: Sánchez Basilio Raúl
Published: July 2019

La patología venosa crónica es altamente prevalente en el ámbito sociosanitario y supone la causa directa de lesiones complejas en miembros inferiores o empeora el pronóstico de otras lesiones producidas principalmente por traumatismos.Este caso clínico describe el abordaje de dos lesiones producidas por la retirada de un apósito adhesivo en un varón de 92 años que acude al Centro de Día de una residencia mixta pública.Una vez constatado el contexto de insuficiencia venosa crónica y evidenciado que los apósitos no eran capaces de manejar el exudado y que no se estaba produciendo la cicatrización en un tiempo adecuado, se decidió aplicar compresión terapéutica de baja elasticidad además de la cura húmeda.Las lesiones originales cicatrizaron en unos 30 días después de iniciar la terapia compresiva, pero el cuadro clínico se alargó 10 días más por la aparición de una flictena secundaria a un vendaje que había sido realizado con venda de crepé. El abordaje de la insuficiencia venosa (patología de base que no había originado las lesiones, pero podría haberlas cronificado) mediante compresión terapéutica aplicada con vendas de baja elasticidad, fue el factor clave en la resolución de este caso.
Sistemas de medición de heridas
Authors: Blasco Vera M Ángeles , Aunés García Lorena , Blanes Ortí Paula , Ramos Romero Irene , Hernández Sanfelix Ana
Published: July 2019

Una herida crónica constituye un importante problema asistencial que disminuye la calidad de vida de los pacientes y que también afecta al sistema de salud, por su elevado coste económico y por la dedicación de tiempo de los profesionales sanitarios. La medición de las úlceras es parte importante de su evaluación y representa una herramienta para desarrollar un plan de manejo y predecir el tiempo de cicatrización, dado que la reducción de la superficie de la herida es un buen indicador de cicatrización y eficacia de la terapia empleada.Existen multitud de sistemas para medir las úlceras: simples (lineales), de dos dimensiones (área de la superficie) o de tres dimensiones (volumen de la herida). Sin embargo, aún no hay consenso claro sobre cuál es el mejor método, que sea rápido, práctico, barato y sencillo en la práctica habitual, ya que resulta difícil medir las úlceras debido a su estructura dinámica tridimensional, en la que el área, el volumen y la forma, incluyendo la curvatura natural del cuerpo humano deben ser tenidas en consideración.
A Warm Jupiter-sized Planet Transiting the Pre-main-sequence Star V1298 Tau
Authors: David Trevor J. , Cody Ann Marie , Hedges Christina L. , Mamajek Eric E. , Hillenbrand Lynne A. , Ciardi David R. , Beichman Charles A. , Petigura Erik A. , Fulton Benjamin J. , Isaacson Howard T. , Howard Andrew W. , Gagné Jonathan , Saunders Nicholas K. , Rebull Luisa M. , Stauffer John R. , Vasisht Gautam , Hinkley Sasha
Published: July 2019

We report the detection of V1298 Tau b, a warm Jupiter-sized planet (R
P = 0.91 ± 0.05 R
Jup, P = 24.1 days) transiting a young solar analog with an estimated age of 23 Myr. The star and its planet belong to Group 29, a young association in the foreground of the Taurus–Auriga star-forming region. While hot Jupiters have been previously reported around young stars, those planets are non-transiting and near-term atmospheric characterization is not feasible. The V1298 Tau system is a compelling target for follow-up study through transmission spectroscopy and Doppler tomography owing to the transit depth (0.5%), host star brightness (K

s
 = 8.1 mag), and rapid stellar rotation (

 = 23 km s−1). Although the planet is Jupiter-sized, its mass is currently unknown due to high-amplitude radial velocity jitter. Nevertheless, V1298 Tau b may help constrain formation scenarios for at least one class of close-in exoplanets, providing a window into the nascent evolution of planetary interiors and atmospheres.
Temperate Super-Earths/Mini-Neptunes around M/K Dwarfs Consist of Two Populations Distinguished by Kepler and Spitzer Transit Depth Variations
Authors: Guo Xueying , Ballard Sarah , Dragomir Diana , Werner Michael , Livingston John , Gorjian Varoujan
Published: July 2019

Studies of the atmospheres of hot Jupiters reveal a diversity of atmospheric composition and haze properties. Similar studies on individual smaller, temperate planets are rare owing to the inherent difficulty of the observations and also to the average faintness of their host stars. To investigate their ensemble atmospheric properties, we construct a sample of 28 similar planets, all of which possess equilibrium temperature within 300–500 K, have similar size (1–3 R
⊕), and orbit early M dwarfs and late K dwarfs with effective temperatures within a few hundred kelvin of one another. In addition, NASA’s Kepler/K2 and Spitzer missions gathered transit observations of each planet, producing a uniform transit data set in both wavelength and coarse planetary type. With the transits measured in Kepler’s broad optical bandpass and Spitzer’s 4.5 μm wavelength bandpass, we measure the transmission spectral slope, Δz/H, for the entire sample. While this measurement is too uncertain in nearly all cases to infer the properties of any individual planet, the distribution of Δz/H among several dozen similar planets encodes a key trend. We find that the distribution of Δz/H is not well described by a single Gaussian distribution. Rather, a ratio of the Bayesian evidences between the likeliest one-component and two-component Gaussian models favors the latter by a ratio of 100:3. In the best-fit two-component Gaussian model, one Gaussian is centered around an average Δz/H = −0.1 with a standard deviation of 8.2, while a smaller but significant second population (20% ± 10% of all) is located at significantly higher Δz/H center values with higher uncertainty. Although the exact shape and locations of the Gaussian models are sensitive to our assumptions in mean molecular weight, we can conclude that (1) there exist two populations of small and temperate planets regarding their effective radius variations between the Kepler bandpass and Spitzer bandpass and (2) atmospheres of this kind of planets are far from uniformly flat, and a fraction of them may be particularly favorable for follow-up observations from space-based platforms like the Hubble Space Telescope and the James Webb Space Telescope.
On the Pitch-angle-dependent Perpendicular Diffusion Coefficients of Solar Energetic Protons in the Inner Heliosphere
Authors: Engelbrecht N. Eugene
Published: July 2019

Various numerical solar energetic particle (SEP) transport studies have shown that perpendicular diffusion plays a significant role in the propagation of these particles in the heliosphere. In particular, computed SEP intensities and anisotropies have been shown to be sensitive to the pitch-angle dependence of the perpendicular diffusion coefficient as well as its magnitude. This study proposes a novel approach to the calculation of this quantity and compares this to the results of previous theoretical approaches. These various perpendicular diffusion coefficient expressions are demonstrated for turbulence conditions prevalent at Earth and closer to the Sun.
Eulimacrostoma gen. nov., a new genus of Eulimidae (Gastropoda, Caenogastropoda) with description of a new species and reevaluation of other western Atlantic species
Authors: de Souza Leonardo Santos , Pimenta Alexandre Dias
Published: July 2019

A new genus and a new species of Eulimidae are described based on the shell morphology and on the host-parasite relationship of the type species. Eulimacrostomamicrosculpturata Souza & Pimenta gen. nov. and sp. nov. parasitizes a starfish of the genus Luidia and has an elongated, conical, straight, or slightly curved shell, a protoconch with a brownish spiral band and convex whorls, a peculiar large and broad aperture with a strongly protruding outer lip, and microsculpture of axial lines on the teleoconch. Four other species are included in the genus, all from the western Atlantic: Eulimacrostomachascanon (Watson, 1883), comb. nov., Eulimacrostomafusus (Dall, 1889), comb. nov., Eulimacrostomalutescens (Simone, 2002), comb. nov., and Eulimacrostomapatula (Dall & Simpson, 1901), comb. nov. Newly available material of Eulimacrostomapatula expands the known geographic distribution of this species in the Caribbean to the north coast of Brazil. Eulimacrostomachascanon and Eulimacrostomafusus and Eulimacrostomalutescens are known only by the type series which was re-examined. A redescription is provided for Eulimacrostomachascanon and Eulimacrostomafusus. Species within Eulimacrostoma differ mainly by teleoconch sculpture, the presence or absence of an umbilical fissure, and shell dimensions. Lectotypes are designated for Eulimacrostomachascanon, Eulimacrostomafusus, and Eulimacrostomapatula.
Life-history traits of house fly,Musca domestica L. (Diptera: Muscidae), reared on three manure types
Authors: Miranda C.D. , Cammack J.A. , Tomberlin J.K.
Published: July 2019

House flies are typically revered as pests because they are a nuisance and carriers of pathogens; however, they are capable of converting animal wastes into valuable biomass that may be suitable for inclusion in animal diets, which has been explored for industrialisation outside of the United States. The purpose of this study was to evaluate the life-history (life cycle) performance, dry matter reduction, and bioconversion of three different manure types fed to house fly larvae. Treatments consisted of 100 1-day-old larvae fed either 9 or 18 g of swine, dairy, or poultry manure every other day until 40% pupation. The control diet (50% wheat bran, 30% alfalfa meal, 20% cornmeal) produced superior results across all parameters examined. When comparing across feed rate for a manure type, larvae weighed more (4-16%) when provided the higher feed rate. A similar trend occurred for pupal (16-25%) and adult (8-25%) weight, as well as adult longevity (7-28%). In regards to those fed manure, significant differences (P<0.05) were detected for time to pupation, percentage pupation, adult weight and adult longevity, dry matter reduction, and bioconversion, across feed rates and manure types. Specifically, among those provided manure, larvae fed poultry manure delivered comparable results to those provided Gainesville diet except for time to pupariation, pupal weight, and percentage pupariation. Data from this study are necessary to advance industrial systems for managing animal wastes with house flies.
A Technique for Closing Challenging Macular Holes
Authors: Sisk Robert A.
Published: July 2019

BACKGROUND AND OBJECTIVE:

To describe a new technique for closing challenging macular holes (MHs).

PATIENTS AND METHODS:

The technique involves vitrectomy with internal limiting membrane (ILM) peeling, isolating the macula under perfluorocarbon liquid, alternating scraping of the retina toward the MH, aspirating fluid from the MH until closure is achieved intraoperatively, and sealing the MH with an inverted ILM flap or autologous ILM free flap. Gas or oil tamponade is used to prevent rehydration of the MH.

RESULTS:

Covering the MH with ILM scaffolding by the inverted flap technique or autologous ILM free flap promoted closure of large MHs by photoreceptor layer migration rather than gliosis. Iatrogenic macular trauma from manipulation produced funduscopic and optical coherence tomography changes but did not preclude significant vision improvement.

CONCLUSIONS:

ILM scaffolding over the surgically reduced MH enhanced surgical closure by photoreceptor migration. Although anatomic success resulted in improvement in visual acuity, further study is required regarding long-term outcomes.

[
Ophthalmic Surg Lasers Imaging Retina
. 2019;50:450–452.]
New Ocular Findings in a Case of Chronic Granulomatous Disease in a Child
Authors: Khundkar Tahsin , Panarelli Joseph , Shulman Julia
Published: July 2019

The authors report a case of a 2-year-old male with chronic granulomatous disease (CGD). On examination, the patient had chorioretinal lesions, peripheral avascular retina, and unilateral glaucoma. CGD is a primary immunodeficiency that leaves the host susceptible to infections and granuloma formation. Chorioretinal lesions are a well-documented finding of CGD. The advent of widefield angiography allowed the authors to detect peripheral retinal nonperfusion in this case. Glaucoma, which by itself has been associated with peripheral avascular retina, has not been previously reported in a case of CGD.

[
Ophthalmic Surg Lasers Imaging Retina
. 2019;50:459–461.]
Food for fuel: The effect of the US biofuel mandate on poverty in India
Authors: Chakravorty Ujjayant , Hubert Marie-Hélène , Ural Marchand Beyza
Published: July 2019

More than40%of US grain is used for energy due to the Renewable Fuel Mandate (RFS). There are no studies of the global distributional consequences of this purely domestic policy. Using micro‐level survey data, we trace the effect of the RFS on world food prices and their impact on household level consumption and wage incomes in India. We first develop a partial equilibrium model to estimate the effect of the RFS on the price of selected food commodities—rice, wheat, corn, sugar, and meat and dairy, which together provide almost70%of Indian food calories. Our model predicts that world prices for these commodities rise by 8–16%due to the RFS. We estimate the price pass‐through to domestic Indian prices and the effect of the price shock on household welfare through consumption and wage incomes. Poor rural households suffer significant welfare losses due to higher prices of consumption goods, which are regressive. However, they benefit from a rise in wage incomes, mainly because most of them are employed in agriculture. Urban households also bear the higher cost of food, but do not see a concomitant rise in wages because only a small fraction of them work in food‐related industries. Welfare losses are greater among urban households. However, more poor people in India live in villages, so rural poverty impacts are larger in magnitude. We estimate that the mandate leads to about 25 million new poor: 21 million in rural and 4 million in the urban population.
Family Communication Patterns and Influence of Children in Family Purchase Decisions
Authors: Shefali  , Aggarwal Vijita Singh
Published: July 2019

This article revolves around the validation of family communication pattern scale along with its subsequent influence on child influence in family purchase decisions. The perceptions of parents of 6-12 years old children in Delhi NCR were taken into consideration to carry out research. Both primary and secondary studies were conducted to complete the research process. Exploratory factor analysis and confirmatory factor analysis were used to validate family communication patterns scale and multiple linear regression was used to find the influence of family communication patterns on children influence in purchase decisions across product categories. The findings resulted in four factors of family communication patterns with an excellent fit. Also, there was a significant influence of family communication patterns on children influence on child goods and services and not on family-related goods.
Mobile Applications Acceptance
Authors: Uğur Naciye Güliz , Turan Aykut Hamit
Published: July 2019

Mobile apps are now an integral part of our daily life, with people spending an average of 30 hours per month with them. On the other hand, according to the existing literature, one in four installed apps is never been used and also there are thousands of rarely downloaded apps on mobile platforms. In this context, investigating the factors influencing the behavioral intentions to use mobile apps and finding out what make some apps popular are important research areas for scientists as well as practitioners. This study integrates constructs from the technology acceptance model (TAM), theory of planned behavior (TPB), unified theory of acceptance and use of technology model (UTAUT) and the uses and gratifications theory (UGT) into a new theoretical model and tests them. The study was conducted by using a structured questionnaire to collect data from 1654 student respondents from a large state university. The theoretical research model was tested with structural equation model (SEM).
Review of Agent Based Modelling of Social Attachment in Crisis Situations
Authors: Bañgate Julius M , Dugdale Julie , Beck Elise , Adam Carole
Published: July 2019

Human behaviour during crisis evacuations is social in nature. In particular, social attachment theory posits that proximity of familiar people, places, objects, etc., promotes calm and a feeling of safety, while their absence triggers panic or flight. In closely bonded groups such as families, members seek each other and evacuate as one. This makes attachment bonds necessary in the development of realistic models of mobility during crises. This article presents a review of evacuation behaviour, theories on social attachment, crisis mobility, and agent-based models. It was found that social attachment influences mobility in the different stages of evacuation (pre, during and post). Based on these findings, a multi-agent model of mobility during seismic crises (SOLACE) is being developed, and it is implemented using the belief, desire and intention (BDI) agent architecture.
A Web-Based Guiding Framework for Student Teachers' Self-Reflective Practice
Authors: Karlsson Göran , Nilsson Pernilla
Published: July 2019

Self-reflection based on the analysis of one's own teaching performance has proven to be a powerful method for developing student teachers´ professional knowledge. The aim of this study was to investigate how a web-based guiding framework involving the use of a pedagogical tool for planning and reflection in conjunction with annotated video recorded lessons, written reflections, and a teacher educator's feedback, might provide a beneficial method for student teacher self-reflection. The study included 56 student teachers performing their in-service training in science teaching. The student teachers completed a questionnaire where they had to respond to statements about their experiences of the framework. The results indicate that a guiding framework that includes analysis of video-recorded teaching is essential for a self-reflective process to become effective. Further development of the framework might be to enable student teachers to participate in synchronous discussions with peers and teacher educators about their video-recorded lesson.
Elution Study of Three Light-Cured Orthodontic Adhesives
Authors: Roongrujimek Pitchaya , Anuwongnukroh Niwat , Dechkunakorn Surachai
Published: July 2019

Objectives: The aim of the study was to evaluate monomer elution from three commercial orthodontic adhesive pastes. Methods: Three monomers BPA, Bis-GMA, and TEGDMA were observed from Green Glue (Hangzhou Westlake Biomaterials Co., Zhejiang, China), GrenGloo (Ormco Co., Glendora, CA, USA), and Transbond XT (3M Unitek, St. Paul, MN, USA). The adhesive was light-cured in a cylindrical mold with 6 mm in diameter and 2 mm thick, before immediately immerse into 10 ml extraction media of 75%ethanol in a tightly sealed container at 37°C. The solution was refreshed at four intervals of time 1, 3, 5, and 7 d. The immersion medium was determined using High-performance liquid chromatography (HPLC). Results and Conclusions: BPA were found from three adhesives. Bis-GMA was found only from Transbond XT. TEGDMA were found from both Green Glue and Grengloo. Green Glue had 10-30 times higher TEGDMA elution than Grengloo. Major elution was found from all orthodontic adhesive paste within 1 d, and decrease with time to 7 d.
Prolonged Rest, Long-Term Dynamic Balance, and Gait in a Mouse Ankle-Sprain Model
Authors: Wikstrom Erik A. , Hubbard-Turner Tricia , Duncan Ashley , Cline Jason , Turner Michael J.
Published: July 2019

Context

Lateral ankle sprains (LASs) result in short- and long-term adaptations in the sensorimotor system that are thought to contribute to the development of chronic ankle instability and posttraumatic ankle osteoarthritis. Debate continues as to the appropriateness of rapid return to sport after LASs given the prevalence of long-term consequences.

Objective

To examine the short- and long-term effects of prolonged rest, as a model of immobilization, on dynamic balance and gait outcomes after a severe LAS in a mouse model.

Design

Controlled laboratory study.

Setting

Research laboratory.

Intervention(s)

At 7 weeks of age, 18 male mice (CBA/J) had their right anterior talofibular and calcaneofibular ligaments transected. Mice were then randomized to 1 of 3 groups representing when access to a running wheel postsurgery was gained: at 3 days, 1 week, and 2 weeks.

Main Outcome Measure(s)

Dynamic balance and spatial gait characteristics were quantified before surgery (baseline) and at 3 days and 1, 2, 4, 6, 12, 18, 24, 30, 36, 42, 48, and 54 weeks postinjury.

Results

Relative to prolonged rest, resting for only 3 days resulted in worse dynamic balance during the later assessment points (42–54 weeks postinjury, P < .01). Mice that underwent a prolonged rest period of 2 weeks crossed the balance beam faster than the group that rested for only 3 days when averaged across all time points (P < .012). Spatial gait characteristics did not differ among the groups (P > .05).

Conclusions

Relative to 3 days of rest, prolonged rest (1 and 2 weeks) after a severe LAS in mice positively affected balance. The apparent benefit of prolonged rest was noted on both dynamic-balance outcomes and performance. Stride length was not altered by the duration of rest after a surgically induced severe LAS in mice. Future research is needed to determine if these results translate to a human model.
The relationship between the exchange rate and the trade balance in South Africa
Authors: Chiloane Lebogang , Pretorius Marinda , Botha Ilse
Published: July 2019

The purpose of this paper is to test the existence of the J-curve effect and to show whether the Marshall–Lerner condition holds in the South African manufacturing sector. Using quarterly data from 1995 to 2010, the study uses the vector error correction modelling technique as well as impulse response functions to attain the research objectives. The results show that a long-run equilibrium relationship exists between the manufacturing trade balance and the three explanatory variables: real effective exchange rate, real domestic and foreign income levels. Overall, the results show that a depreciation in the domestic currency results in a deterioration in the manufacturing trade balance in the short run, and that this is followed by an improvement in the long run. The study finds evidence of the existence of the J-curve in the South African manufacturing sector. The long-run dynamics suggest that the Marshall–Lerner condition holds.
The effect of the new revenue standard on client loyalty programmes
Authors: Brink Sophia
Published: July 2019

The popularity of client loyalty programmes has increased drastically over the past few years, with more than 100 suppliers in South Africa currently making use of them. On 1 July 2007 the IASB issued IFRIC 13 to give specific guidance to suppliers on the accounting treatment of client loyalty programme transactions. In the process of compiling a new revenue standard, the International Accounting Standard Board published Exposure Draft ED/2011/6 Revenue from Contracts with Customers on 14 November 2011 to supersede virtually all existing revenue standards and interpretations under IFRS, including IFRIC 13. Although the effective date of the new revenue standard is 1 January 2017, in view of the nature of a client loyalty programme transaction it would be prudent for suppliers to start collecting data immediately for the retrospective application. Given the time limit and the minimal specific reference to client loyalty programme transactions in the proposed new model, the main aim of the research was to investigate the proposed new model’s impact on the accounting treatment of client loyalty programme transactions. The similarities and differences between the guidelines in IFRIC 13 and those of the proposed new model as well as the specific paragraphs in the proposed new model that are applicable to client loyalty programme transactions were considered. A specific recognition difference and a presentation difference has been identified between the accounting treatment of a client loyalty programme transaction under IFRIC 13 and that of the proposed new model.
Labour productivity and employee diversity in the South African workplace
Authors: Van Zyl Hardus
Published: July 2019

The aim of this article is to determine the impact that employee diversity attributes have on labour productivity in the South African workplace. Given the perceived general low levels of labour productivity in the South African economy, this particular research aims to serve as a further contribution to our understanding of the labour productivity debate when a broad range of employee attributes at firm and individual levels are considered. A firm-based model is used for the estimation of the link between the employee group demographic characteristics and labour productivity, and an employee remuneration model is used to estimate the link between individual employee diversity demographics and labour productivity. The main conclusions of the estimation results are that a less age-diverse workforce, higher education/training levels, greater levels of gender diversity and a more racially diverse workforce are pre-requisites for higher real remuneration and labour productivity benefits.
Editorial
Authors: Beenhakker J. C.
Published: July 2019

No abstract available
Book Review: Neuro/musculo-skeletal examination and recording guide
Authors: Cunningham C.
Published: July 2019

No abstract available
Ambubagging as a therapeutic technique: Clinical guidelines
Authors: Barker M. , Eales C. J.
Published: July 2019

A review of the literature relating to ambubagging was undertaken. During the period 1980-1992, several studies that were done investigated a scientific basis for the use of bagging and conflicting evidence was found. This may have been due to discrepancies in the measuring tools used as well as the divergence of the research designs by the investigators. Guidelines for the effective use of ambubagging as a therapeutic technique are set out.
The effect of mechanical vibration on the gaseous exchange and lung functions of patients with acute lung injury
Authors: Wessels S. P.
Published: July 2019

In this study, the effect of mechanical vibration, on the gaseous exchange and lung functions of patients with acute lung injury was evaluated. The use of combinations of techniques in previous studies and, the failure to contribute success or failure to any one treatment modality, was the main motivation for this study.A study was done in which the experimental group received mechanical vibration and the control group only routine respiratory care, for two treatment sessions. Before, and at various time intervals, after the first and second treatment, blood gases and lung functions were recorded. Chest X-rays (CxR) were taken within 12 hours before the first and within 24 hours after the second treatment. For the ventilation studies, the total group was divided randomly in two groups – in one, ventilation studies were carried out before and after the first treatment and in the other, the studies were carried out before the first and after the second treatment.There was s significant deterioration in PaO2 two hours after the second treatment, and in PaO2 and SaO2 when the values two hours after the second treatment were compared to the values before the first treatment. The CxR of only two of the patients in the experimental group showed improvement and the others showed either no change or deterioration.The forced vital capacity (FVC) showed a significant improvement after the first treatment, but no change after the second treatment. The same was seen in the ventilation studies.
Beyond the landscape: analysis of Neolithic circular ditch systems of Lower Austria with advanced virtual archaeoastronomy
Authors: Zotti Georg , Neubauer Wolfgang
Published: July 2019

This paper describes developments in virtual archaeology that started in a research project about the possible astronomical entrance orientation of Neolithic circular ditch systems (German Kreisgrabenanlagen, KGA) of Lower Austria. Starting from data analysis in a Geographical Information System (GIS), we will cover a simple way of modelling, and discuss three ways of visualisation for the combination of landscape and human-made buildings together with celestial objects. The first way involves extensions to the modelling program SketchUp to bring in just enough astronomical data for scientific evaluation. The second introduces a set of extensions to the open-source desktop planetarium program Stellarium, which can meanwhile be used to load a standard 3D model format to allow detailed research in astronomical orientation patterns, and light-and-shadow interaction over many millennia, even for researchers less familiar with astronomical programming. The third presents a “serious gaming” approach, which can provide the most natural view of the landscape, but requires at least some, if not deep, familiarity with astronomical and 3D computer graphics programming and, therefore, due to this considerably larger effort, appears to be mostly useful for outreach of high-profile results to the public. The entrances to the KGA of Lower Austria turned out to be mostly oriented following a purely terrestrial pattern of up- and downward sloping terrain, but with one noteworthy exception.

Highlights:

Virtual archaeology can help to better understand archaeological remains embedded in the landscape. Occasionally, the “landscape” concept must be extended to include the celestial landscape.

Open-source development allowed the combination of a desktop planetarium with 3D landscape and architecture visualisation. Also, datable changes in the landscape can meanwhile be simulated.

Astronomical elements added to a game engine can also be used to faithfully provide important insights while providing the most appealing visualisation environments so far, but with considerably more effort.
Variabilidade espaço-temporal das variáveis biofísicas no semiárido do Rio Grande do Norte, Brasil
Authors: Bezerra Hélio Nogueira , Bezerra Joel Medeiros , Pereira de Araújo Caio Sérgio , Mattos Arthur
Published: July 2019

A determinação de parâmetros biofísicos, tais como o Índice de Vegetação por Diferença Normalizada (NDVI) e a Temperatura de superfície (Ts), são de extrema importância para estudos de mudanças climáticas nos ambientes em geral. Com isso, o objetivo do presente estudo foi analisar a variabilidade espaço-temporal das variáveis biofísicas de NDVI e Ts, utilizando produtos de sensoriamento remoto, em área heterogênea, com predominância de cobertura vegetal de Caatinga, associando as respostas das variações a eventos sazonais de precipitação (P) e temperatura média diária do ar (Tar). Os resultados obtidos mostraram claramente o comportamento da vegetação de Caatinga mediante a distribuição temporal da precipitação pluvial, apresentando resultados de NDVI maiores para os períodos com maior disponibilidade hídrica e de Ts menor, devido a influência do desenvolvimento de biomassa verde sobre essas duas variáveis.
Políticas públicas e sustentabilidade: o caso do Projeto Hora de Plantar na microrregião do Cariri (CE)
Authors: Rodrigues Anderson Da Silva , Khan Ahmad Saeed , Sousa Eliane Pinheiro de
Published: July 2019

Este estudo avalia o impacto do Projeto Hora de Plantar sobre a sustentabilidade agrícola dos agricultores familiares produtores de milho híbrido da Microrregião do Cariri mediante a construção de um Índice de Sustentabilidade da Produção (ISP), composto pelas dimensões econômica, ambiental e tecnológica. Utilizaram-se dados de origem primária, obtidos mediante 210 questionários semiestruturados, sendo 90 para beneficiários e 120 para não beneficiários do programa. A comparação foi realizada por meio da aplicação de técnicas de inferência estatística. Os resultados revelam que o Índice de Sustentabilidade da Produção entre os beneficiários é significativamente superior ao dos não beneficiários. Em relação aos componentes do ISP, os beneficiários apresentaram superioridade estatisticamente significativa nos índices das dimensões econômica e tecnológica.
O Programa de Aquisição de Alimentos – PAA: a evolução de uma política pública múltipla
Authors: Hentz Carla , Hespanhol Rosangela Aparecida de Medeiros
Published: July 2019

Este trabalho tem como objetivo apresentar e analisar variáveis que caracterizam a evolução do Programa de Aquisição de Alimentos (PAA), no período entre 2003 e 2015. Institucionalizado no ano de 2003 como uma ação estruturante do Programa Fome Zero, as ações do programa promovem a articulação entre a produção, a comercialização e o consumo, conjugando elementos da política agrícola e da política de segurança alimentar, visando colaborar com o enfrentamento da fome e da pobreza e, ao mesmo tempo, promover a inclusão produtiva no campo. Desta forma, efetuar-se-á uma análise da trajetória do PAA em escala nacional, como também por macrorregiões (Centro-Oeste, Nordeste, Norte, Sudeste e Sul). É possível afirmar que, embora o programa surja como resposta e possibilidade de transformação social no meio rural, sua abrangência em termos de estabelecimentos da agricultura familiar ainda é limitada.
Em defesa de uma Geografia Financeira
Authors: Da Silva Prada Joanderson , Alves Costa Pierre , Videira Sandra Lúcia
Published: July 2019

O presente trabalho se dedica a propor a existência de uma Geografia Financeira, justificando tal assertiva por meio da caracterização do que vem sendo discutido em âmbito geográfico acerca do tema das finanças. Assim, pautados por pesquisa bibliográfica, apresentamos algumas das abordagens adotadas pelos geógrafos brasileiros ao se dedicarem a essa temática para, na sequência, detalharmos alguns dos principais trabalhos dedicados ao tema. Como resultado, verificamos que o aspecto financeiro possui grande relevância sobre a organização do espaço geográfico.
How can the First ISLSCP Field Experiment contribute to present-day efforts to evaluate water stress in JULESv5.0?
Authors: Williams Karina E. , Harper Anna B. , Huntingford Chris , Mercado Lina M. , Mathison Camilla T. , Falloon Pete D. , Cox Peter M. , Kim Joon
Published: July 2019

Abstract. The First International Satellite Land Surface
Climatology Project (ISLSCP) Field Experiment (FIFE), Kansas,
US, 1987–1989, made important contributions to the understanding of energy
and CO2 exchanges between the land surface and the atmosphere, which
heavily influenced the development of numerical land-surface modelling.
Now, 30 years on, we demonstrate how the wealth of data collected during FIFE and
its subsequent in-depth analysis in the literature continue to be a valuable
resource for the current generation of land-surface models. To illustrate, we
use the FIFE dataset to evaluate the representation of water stress on
tallgrass prairie vegetation in the Joint UK Land Environment Simulator
(JULES) and highlight areas for future development. We show that, while JULES
is able to simulate a decrease in net carbon assimilation and
evapotranspiration during a dry spell, the shape of the diurnal cycle is not
well captured. Evaluating the model parameters and results against this
dataset provides a case study on the assumptions in calibrating
“unstressed”
vegetation parameters and thresholds for water stress. In particular, the
responses to low water availability and high temperatures are calibrated
separately. We also illustrate the effect of inherent uncertainties in key
observables, such as leaf area index, soil moisture and soil properties.
Given these valuable lessons, simulations for this site will be a key
addition to a compilation of simulations covering a wide range of vegetation
types and climate regimes, which will be used to improve the way that water
stress is represented within JULES.
Mª Teresa Zamanillo Peral (2018). Epistemología del Trabajo Social: De la evidencia empírica a la exigencia teórica. [Epistemology of Social work: From the empirical evidence to the theoretical requirement]. Madrid: Ediciones Complutense. 224 pp.
Authors: García Giráldez Teresa
Published: July 2019

He sido testigo de las vicisitudes del libro y de la preocupación del prologuista, Luis Nogués, por el vacío que provocan las jubilaciones en la academia y en la profesión. Para contrarrestarlo, la labor científica de Teresa Zamanillo, en Epistemología del Trabajo Social: De la evidencia empírica a la exigencia teórica, evitará que se pierda parte de un legado antes disperso, reunido ahora en esta obra que se reseña. Además el hecho de que coincida con la puesta en marcha de Ediciones Complutense, como la primera propuesta de una publicación de Trabajo Social, resulta gratificante. En este texto la autora ha seleccionado aquellos artículos que considera más pertinentes, evaluados por expertos y transformados en libro. Son unas reflexiones teóricas de otros autores y de la propia autora, que permean la praxis progresista de una académica comprometida, como se evidencia en los distintos capítulos.
Sobre el pensamiento complejo
Authors: Navarro Llobregat Belén
Published: July 2019

Me llamo Belén Navarro Llobregat, soy trabajadora social y residente en El Ejido (Almería). Desde 2011 escribo en un blog al que llamé trabajo social y tal porque trabajo social y otras hierbas estaba ocupado. Ahora que lo pienso también podría haberlo titulado Mi trabajo social y otros animales, emulando el título del famoso libro de Gerald Durrell, pero igual alguien no se lo hubiera tomado bien. Lo que quiero decir es que necesitaba un título que me permitiese tomarme la libertad de escapar del trabajo social de vez en cuando.
Enseñanza a partir de saberes tradicionales de las comunidades de la etnia Wayuu
Authors: Melo Nadenka Beatriz
Published: July 2019

Este artículo presenta una exploración acerca de las posibilidades de diálogo entre los conocimientos científicos escolares y los saberes locales tradicionales que son trabajados en las escuelas de la comunidad de la etnia Wayuu, a partir del reconocimiento de las plantas medicinales nativas presentes en el territorio. La metodología fue de tipo cualitativo, con observación participante, en la que, mediante la elaboración de un cuento, los niños generan respuestas sobre los saberes tradicionales de las plantas nativas. El análisis de la experiencia permite concluir que las plantas nativas y los saberes locales tradicionales permiten el diálogo entre conocimientos mediados por un cuento cultural en las escuelas de la comunidad Wayuu.
Educación para la paz: aproximación teórica desde los imaginarios de paz
Authors: Alvarez Maestre Annie Julieth , Pérez Fuentes Carlos Alfredo
Published: July 2019

El artículo presenta un estudio documental a cerca de los elementos teóricos que fundamentan epistemológicamente un proyecto de investigación sobre educación para la paz. Aborda en tres temas centrales: análisis de la teoría de la paz y el conflicto; comprensión de los imaginarios sociales en el contexto de la paz; aprehensión conceptual de la educación para la paz mediante las tecnologías de la información y la comunicación (TIC). Como conclusiones, se plantea que la comprensión de los imaginarios sociales de paz es fundamental para generar propuestas pedagógicas adecuadas a las necesidades de los estudiantes. Estas propuestas se deben soportar en una teoría sistemática de la paz, que incorpore elementos de la paz estructural, imperfecta y neutra.
Comparative Analysis of Growth Convergence in Selected West African Countries
Authors: Semanou Alexandrov Nevski Sachs , Uslu Kamil
Published: July 2019

This paper analyses the β-convergence process of West African countries with a focus on Benin, Côte d'Ivoire, Ghana, and Togo. It has been motivated by the apparent persistence of income gap between West African countries. To achieve the objective of the study, we use both descriptive statistics and econometric approach. The study covers the time period of 27 years (1990-2017). The results show the absence of a unit steady state for the region and do not confirm neoclassical theory’s predictions. Rather, it shows the existence of club convergence in West Africa. Also, lower-income countries such as Benin and Togo have lower steady-state income compared to Ghana and Cote d'Ivoire.
Determinants of Lighting Energy Transitions in Rural Ethiopia: Lessons from Mida Oromo and Wonisho Districts of Ethiopia
Authors: Mekonnen Kindeye Fenta , Abera Yohannes
Published: July 2019

Modern renewable energy is an important tool to achieve socio-economic transformation, particularly in rural areas of developing countries like Ethiopia. However, most people do not access modern energy and thus providing it is one of the daunting tasks that the government has faced. Knowing energy choice of households is one of the important factors to bring energy transition. However, limited studies are undertaken in the Country on this area. Thus, this paper tried to address the gap by investigating factors affecting households lighting energy choice by taking sample of 442 households in Mida Oromo and Wonisho Districts of Ethiopia. Both descriptive and inferential statistics were employed for analyzing the data. The result shows that households consume a range of traditional, transitional and modern lighting energy sources available in their areas. Wealthy households prefer lighting energy sources that are clean and relatively expensive including, grid electricity and solar energy unlike households in lower income category who opt to cheap and easily available energy sources. The study further highlighted that income is not the only factor affecting household energy transitions. Family size, access to market and road infrastructure, asset of the household and the district of the households, mobile and radio ownership and education attainment of the head or family members are found to be an important determinants affecting energy transition of rural households. The study concluded that any program that aim to provide modern lighting energy sources need to consider all these diverse factors and local contexts.
Metodología de diagnóstico logístico de almacenes y centros de distribución
Authors: Valencia Granados Jorge Arnoldo
Published: July 2019

Existen muchas metodologías de análisis  para el mejoramiento de almacenes y centros de distribución. Este artículo expone, a grandes trazos,  los componentes utilizados por la empresa Portal Logístico para desarrollar sus proyectos. Independientemente de la tecnología utilizada, los factores o componentes que se analizan son: análisis de infraestructura y áreas; procesos, inventarios, seguridad laboral y ocupacional; e indicadores logísticos o KPI.
Magma Emplacement Rates and Porphyry Copper Deposits: Thermal Modeling of the Yerington Batholith, Nevada
Authors: Schöpa Anne , Annen Catherine , Dilles John H. , Sparks R. Stephen J. , Blundy Jon D.
Published: July 2019

Many porphyry copper deposits are associated with granitoid plutons. Porphyry copper deposit genesis is commonly attributed to degassing of pluton-forming intermediate to silicic magma chambers during slow cooling and crystallization. We use numerical simulations of thermal evolution during pluton growth to investigate the links between pluton construction, magma accumulation and solidification, volatile release, and porphyry copper deposit formation. The Jurassic Yerington batholith, Nevada, serves as a case study because of its exceptional exposure, revealing the geometry of three main intrusions. The last intrusion, the Luhr Hill granite, is associated with economic porphyry copper deposits localized over cupolas where dikes and fluid flow were focused. Our simulations for the conceptual model linking porphyry copper deposits with the presence of large, highly molten magma chambers show that the Luhr Hill granite must have been emplaced at a vertical thickening rate of several cm/yr or more. This magma emplacement rate is much higher than the time-averaged formation rates of other batholiths reported in the literature. Such low rates, although common, do not lead to magma accumulation and might be one of the reasons why many granitoid plutons are barren. Based on our results, we formulate the new testable hypothesis of a link between porphyry copper deposit formation and the emplacement time scale of the associated magma intrusion.
Geological and Chronological Constraints on the Long-Lived Eocene Yulong Porphyry Cu-Mo Deposit, Eastern Tibet: Implications for the Lifespan of Giant Porphyry Cu Deposits
Authors: Chang Jia , Li Jian-Wei , Selby David , Liu Jia-Cheng , Deng Xiao-Dong
Published: July 2019

The Yulong porphyry Cu-Mo deposit, the third largest porphyry Cu deposit in China, contains proven reserves of > 6.5 million metric tons (Mt) Cu and 0.4 Mt Mo. Previous radiometric dating studies have provided numerous ages for this deposit, but the timing and duration of the process governing the deposition of Cu and Mo remains not well constrained. In this paper, we first document multiple stages of mineralization and hydrothermal alteration associated with distinct magmatic pulses at Yulong by field and textural relationships, and then present high-precision molybdenite Re-Os ages of 14 quartz-molybdenite ± chalcopyrite veins representing these stages to precisely constrain the timing and duration of Cu-Mo mineralization.

The ore-hosting Yulong composite stock consists of three successive porphyry intrusions: (1) monzonitic granite porphyry (MGP), (2) K-feldspar granite porphyry (KGP), and (3) quartz albite porphyry (QAP). The vein formation, Cu-Mo mineralization, and ore-related alteration are grouped into early, transitional, and late stages with respect to the intrusive history. The first two porphyry intrusions are followed by cyclical sequences of veining that are mainly associated with potassic alteration and have formed (1) ME vein/USTT, (2) EBE/T veins, (3) A1E/T veins, (4) A2E/BT veins, and (5) A3E/T veins. A2E/BT and A3E/T veins of the early and transitional stages are dominated by quartz and chalcopyrite ± pyrite, respectively, and represent the main Cu-Mo mineralization events. More than 80% of Cu and Mo at Yulong were deposited in the early stage with the remainder being formed in the transitional stage. The late-stage pyrite-quartz veins (DL), which are characterized by sericitic alteration halos, postdate the intrusion of QAP dikes and have no economic significance.

Molybdenite Re-Os ages of A2E and BT veins indicate that sulfide deposition at Yulong was episodic over a prolonged history lasting over 5.13 ± 0.23 m.y. (1σ). However, the bulk Cu-Mo ores formed in a shorter time interval of 1.36 ± 0.24 m.y. (1σ) with most Cu precipitated in a more restricted timespan of 0.82 ± 0.24 m.y. (1σ) in the early stage. These results, combined with geochronologic data from porphyry copper deposits elsewhere, confirm that multiple magmatic-hydrothermal pulses with a lifespan of tens to hundreds of thousands of years are sufficient to form a giant porphyry copper deposit. Factors such as metal concentration, volume, and focusing efficiency of ore-forming fluids could have played important roles in producing a giant porphyry Cu deposit regardless of a short- or long-lived magmatic-hydrothermal system.