bluuebunny/crossref_metadata_2025 huggingface dataset:
Re-challenge with High Dose Methotrexate vs. Reduced Dose After Methotrexate Toxicity in Pediatric Osteosarcoma:Case Report
Authors: Ibrahim Walid , Alhuda Mohamed Alam , Alkhayat Nawaf , Elborai Yasser
Published: July 2020

Introduction: Methotrexate (MTX), a classic antifolate, is one of the most widely used and well-studied anticancer agents. High-dose methotrexate (HD-MTX) with folinic acid (leucovorin) rescue is one of the standard therapies for osteosarcoma. High-dose methotrexate (HDMTX) can exert significant toxicity and requires complex pharmacokinetic monitoring and leucovorin rescue. The side effect profile of MTX varies markedly according to the dose. Regimens containing MTX are classified as high, intermediate, or low-dose. High-dose methotrexate (HD-MTX; 12 g/m2) is a part of the golden standard therapy for pediatric osteosarcoma (OS). Risk factors associated with MTX toxicity in children with OS are not well defined. Case Presentation: We report here a case of pediatric osteosarcoma with nephrotoxicity associated with delayed MTX excretion who was successfully managed using supportive measures that encouraged us to re-challenge with a full dose of MTX then we reduced the dose to 50% to attain the final critical decision about continuation or changing the regimen of treatment for the patient. Our patient developed moderate renal complications during therapy that improved with supportive care, so we challenged with more cycles of a high dose MTX, but the patient developed serious renal complications. A reduced dose of MTX with 50% was given successfully without any renal impairment. Conclusion: Methotrexate toxicity that might not occur during the initial courses of high-dose MTX is not a predictive of the tolerability of further courses and re-challenging with HDMTX is risky, but reduced dose methotrexate is a good option rather than changing the regimen, with good tolerability and rapid clearance of HDMTX. HDMTX-induced renal impairment occurs in a low percentage of patients with osteosarcoma and can be managed successfully by maximum supportive care. MTX clearance can be affected by gender and age.
Cirrus cloud shape detection by tomographic extinction retrievals from infrared limb emission sounder measurements
Authors: Ungermann Jörn , Bartolome Irene , Grießbach Sabine , Spang Reinhold , Rolf Christian , Krämer Martina , Höpfner Michael , Riese Martin
Published: July 2020

Abstract. An improved cloud index-based method for the detection of clouds in limb sounder data is presented that exploits the spatial overlap of measurements to more precisely detect the location of (optically thin) clouds. A second method based on a tomographic extinction retrieval is also presented. Using CALIPSO data and a generic advanced infrared limb imaging instrument as example for a synthetic study, the new cloud index method is better in detecting the horizontal cloud extent in comparison to the traditional cloud index and has a reduction of false positive cloud detection events by about 30 %. The results for the extinction retrieval show even an improvement of 60 %. In a second step, the extinction retrieval is applied to real 3-D measurements of the air-borne limb sounder GLORIA taken during the Wave-driven ISentropic Exchange (WISE) campaign to retrieve small-scale cirrus clouds with high spatial accuracy.
Combining homogeneous and heterogeneous chemistry to model inorganic compounds concentrations in indoor environments: the H2I model (v1.0)
Authors: Fiorentino Eve-Agnès , Wortham Henri , Sartelet Karine
Published: July 2020

Abstract. Homogeneous reactivity has been extensively studied over the past years through outdoor air-quality simulations. However, indoor atmospheres are known to be largely influenced by another type of chemistry, that is reactivity with surfaces. Despite progress in the understanding of heterogeneous reactions, these remain barely integrated in numerical models. In this paper, a room-scale indoor air-quality (IAQ) model is developed to represent both heterogeneous and homogeneous chemistry. Thanks to the introduction of sorbed species, deposition and surface reactivity are treated as two separate processes, and desorption reactions are incorporated. The simulated concentrations of inorganic species are compared to experimental measurements acquired in a real room, thus allowing to calibrate the model’s undetermined parameters. For the considered experiments durations, the influence of the simulations initial conditions is strong. The model succeeds in simulating correctly the four inorganic species concentrations that were measured, namely NO, NO2, HONO and O3, together with the HOx (HO + HO2) radicals. Each parameter is then varied to estimate its sensitivity and identify the most prevailing processes. The speed of air and building filtration factor are uncertain parameters which appear to have a strong influence, the first one on deposition, and the second one on the control of transport from outdoor. As expected, the NO2 surface hydrolysis plays a key role in the production of secondary species. The secondary production of NO by the reaction of sorbed HONO with sorbed HNO3 stands as an essential component to integrate in IAQ models.
A Hybridized NGBoost-XGBoost Framework for Robust
Evaporation and Evapotranspiration Prediction
Authors: Başağaoğlu Hakan , Chakraborty Debaditya , Winterle James
Published: July 2020

Abstract. We analyze the relationship between potential evapotranspiration (ETo), actual evapotranspiration (ETa), and surface water evaporation (Esw) in the semi-arid south-central Texas, using hourly climate data, daily lake evaporation measurements, and daily actual evapotranspiration measurements from an eddy covariance (EC) tower. The deterministic analysis reveals that ETo set the upper bound for ETa, but the lower bound for Esw in the study area. Unprecedentedly, we demonstrate that a newly developed probabilistic machine learning (ML) model, using a hybridized NGBoost-XGBoost framework, can accurately predict the daily ETo, Esw, & ETa from local climate data. The probabilistic approach exhibits great potential in overcoming data uncertainties, in which 99 % of the ETo, 90 % of the Esw, and 91 % of the ETa test data at three watersheds were within the model's 95 % prediction interval. The probabilistic ML model results suggest that the proposed framework can serve as a robust and computationally more efficient tool than the hourly Penman-Monteith equation to predict the ETo while avoiding computationally-involved net solar radiation calculations. Additionally, the performance analysis of the probabilistic ML model indicates that it can be successfully implemented in practice to overcome the uncertainties associated with pan evaporation & pan coefficients in Esw estimates, and to offset the high capital & operational costs of EC towers used for Ea measurements. Finally, we demonstrate, for the first time, a coalition game theory approach to identify the order of importance, dependencies & interactions of climatic variables on the ML-based ETo, Esw, and ETa predictions. New knowledge gained through the game theory approach is beneficial to strategically locate weather stations for enhanced evapo(transpi)ration predictions, and plan out sustainability and resilience efforts, as part of water management and habitat conservation plans.
Why does a conceptual hydrological model fail to correctly predict discharge changes in response to climate change?
Authors: Duethmann Doris , Blöschl Günter , Parajka Juraj
Published: July 2020

Abstract. Several studies have shown that hydrological models do
not perform well when applied to periods with climate conditions that differ
from those during model calibration. This has important implications for the
application of these models in climate change impact studies. The causes of
the low transferability to changed climate conditions have, however, only
been investigated in a few studies. Here we revisit a study in Austria that
demonstrated the inability of a conceptual semi-distributed HBV-type model
to simulate the observed discharge response to increases in precipitation
and air temperature. The aim of the paper is to shed light on the reasons for these model problems. We set up hypotheses for the possible causes of the
mismatch between the observed and simulated changes in discharge and
evaluate these using simulations with modifications of the model. In the
baseline model, trends of simulated and observed discharge over 1978–2013
differ, on average over all 156 catchments, by 95±50 mm yr−1
per 35 years. Accounting for variations in vegetation dynamics, as derived
from a satellite-based vegetation index, in the calculation of reference
evaporation explains 36±9 mm yr−1 per 35 years of the differences
between the trends in simulated and observed discharge. Inhomogeneities in
the precipitation data, caused by a variable number of stations, explain 39±26 mm yr−1 per 35 years of this difference. Extending the
calibration period from 5 to 25 years, including annually aggregated discharge
data or snow cover data in the objective function, or estimating evaporation
with the Penman–Monteith instead of the Blaney–Criddle approach has little
influence on the simulated discharge trends (5 mm yr−1 per 35 years or
less). The precipitation data problem highlights the importance of using
precipitation data based on a stationary input station network when studying
hydrologic changes. The model structure problem with respect to vegetation
dynamics is likely relevant for a wide spectrum of regions in a transient
climate and has important implications for climate change impact studies.
Continuous in situ measurements of anchor ice formation, growth and release
Authors: Ghobrial Tadros R. , Loewen Mark R.
Published: July 2020

Abstract. In northern rivers, turbulent water becomes supercooled (i.e. cooled to slightly below 0 °C) when exposed to freezing air temperatures. In supercooled water, frazil (small ice disks) crystals are generated in the water column and anchor ice starts to form on the bed. Two anchor ice formation mechanisms have been reported in the literature: either by the accumulation of suspended frazil particles, which are adhesive (sticky) in nature, on the river bed; or by in situ growth of ice crystals on the bed material. Once anchor ice has formed on the bed, the accumulation typically continues to grow (either due to further frazil accumulation and/or crystal growth) until release occurs due to mechanical (shear force by the flow or buoyancy of the accumulation) or thermal (warming of the water column which weakens the ice-substrate bond) forcing or a combination of the two. Although detailed laboratory experiments have been reported to study anchor ice, but very few field measurements of anchor ice processes have been reported. These measurements have relied on either sampling anchor ice accumulations from the river bed, or qualitatively describing the observed formation and release. In this study, a custom-built imaging system (camera and lighting) was developed to capture high-resolution digital images of anchor ice formation and release on the river bed. A total of six anchor ice events were successfully captured in the time-lapse images and for the first time, the different initiation, growth and release mechanisms were measured in the field. Four stages of the anchor ice cycle were identified, namely: Stage 1: initiation by in situ crystal growth, Stage 2: transitional phase, Stage 3: linear growth, and Stage 4: release phase. Anchor ice initiation due to in situ growth was observed in three events and in the remainder the accumulation appeared to be initiated by frazil deposition. The Stage 1 growth rates ranged from 1.3 to 2.0 cm/hr and the Stage 2 and 3 growth rates varied from 0.3 to 0.9 cm/hr. Anchor ice was observed releasing from the bed in three modes referred to as lifting, shearing and rapid.
Analysis of the Determinants of Tax Policy Compliance in Nigeria
Authors: Dibie Robert , Dibie Raphael
Published: July 2020

This paper examines the factors that determines tax policy compliance and the impediments to effective tax administration in Nigeria. The objectives are to: (a) determine if there is a relationship between knowledge of tax laws and compliance in Nigeria; and (b) if there is a positive relationship between corruption and tax compliance. The paper argues that taxpayers’ knowledge of Nigerian tax laws could positively influence citizens attitude and behavior towards compliance. The primary data were derived from interviews, and questionnaires. The conceptual frameworks are based on strategic and benchmark approaches, and principal agent model. The data analysis shows that there is a strong positive relationship between lack of tax knowledge, low level of education and tax compliance in Nigeria. The findings of this study also reveal that there is a strong positive correlation between corruption and tax evasion. The inadequate use of information technology in tax administration, and lack of government incentives as well as poor working condition have negative correlation with tax collection management. There is however significant relationship between inappropriate assessment system, poor economic situation in the country, and lower tax compliance rate in the country. Some benchmark strategic policy recommendations are provided on how to better implement tax compliance laws in Nigeria in the future.
La transformación del proceso de enseñanza-aprendizaje en centros educativos salvadoreños
Authors: Hernández Monterrosa Antonia Larissa , Huezo Estrada Vilma , Juárez Bonilla Luz Julieta , Guzmán Avilés José Daniel , Onofre Mendoza Naun Oseas
Published: July 2020

La educación es un proceso complejo que cada vez está más influenciado por la innovación de metodologías y de otros aspectos vinculados a la formación de los profesores. Esta investigación se realizó en cinco centros escolares del país. La muestra estuvo conformada por cinco docentes y 154 estudiantes de las secciones tercer ciclo de educación básica. Para recopilar información, se aplicaron las técnicas de entrevista, grupo focal y observación. Se encontraron diferentes problemáticas durante el diagnóstico: mejorar la competencia lingüística, sistematización del uso correcto del huerto escolar, la comprensión de obras literarias y la sistematización de actividades integradoras. Cada una de ellas fue intervenida en el aula durante un mes, a través de la metodología investigación-acción. Dentro del estudio se aplicaron las siguientes técnicas innovadoras, según el caso de cada centro educativo: Rutinas de pensamiento; Guía para el huerto escolar; Guía para la comprensión lectora; Guía para actividades integradoras y la Metodología del aprendizaje invertido. Posteriormente, durante la observación, se evaluó el impacto de las estrategias implementadas, a fin de verificar los cambios realizados por los docentes en su práctica profesional. Como principal resultado se encontró que, al utilizar metodologías innovadoras se incidió positivamente en la construcción del aprendizaje significativo; aumentando la participación de los estudiantes en el proceso de enseñanza-aprendizaje.
Reviewer Acknowledgements for Global Journal of Health Science, Vol. 12, No. 7
Authors: Grey Erica
Published: July 2020

Reviewer Acknowledgements for Global Journal of Health Science, Vol. 12, No. 7, 2020.
Feed-in-Tariff Removal in UK’s Community Energy: Analysis and Recommendations for Business Practices
Authors: Acharya Abhijeet , Cave Lisa A.
Published: July 2020

This paper aims to analyze the implications of Feed-In-Tariff (FIT) support removal in the UK’s community energy sector and make recommendations for future business practices. European countries, including the UK, have recognized the critical role of Community Energy Cooperatives (CECs) in achieving low-carbon-energy transition targets through citizen engagements. However, due to the withdrawal of FIT support and other incentives in the UK, CECs struggle to sustain their profitability and growth. The subsidy-free, market-oriented policies have necessitated that CECs explore new business opportunities in collaboration with other actors of the business ecosystems. In this paper, we reviewed the impact of FIT support removal on community groups in the UK's member states, England, Scotland, and Wales. We analyzed effective business practices that CECs could follow to improve business viability and achieve growth. Based on our review, we make three recommendations for the business practices that can help CECs to remain profitable and grow in the UK’s subsidy-free environment. We recommend that CECs 1) take part in shared ownership projects, 2) collaborate with local actors for bottom-up initiatives, and 3) explore low-interest financing models within the business ecosystem. The implication of findings from this paper includes new knowledge for CEC managers and policymakers in countries where the community energy sector is at a novice stage.
Klimaatrisico’s in de financiële sector: over ‘groene zwanen’ en een uniform kader tegen ‘greenwashing’
Authors: Sijmons E.S.
Published: July 2020

Klimaatrisico’s in de financiële sector: over ‘groene zwanen’ en een uniform kader tegen ‘greenwashing’

Duurzame investeringen winnen aan populariteit. Wetgevende instanties en toezichthouders stimuleren verduurzaming van de portefeuille van financiële ondernemingen in verband met klimaatrisico’s (‘groene zwaan’-risico’s), maar waarschuwen ook voor de risico’s die gepaard gaan met duurzame investeringen. De onstuitbare vergroeningstrend brengt het risico van ‘greenwashing’ met zich. Als antwoord op onder meer greenwashing wordt er gewerkt aan een Europees uniform classificatiesysteem omtrent duurzaamheid, ofwel een Europese taxonomie. Dit artikel bespreekt klimaatrisico’s, greenwashing en positieve en negatieve aspecten van deze taxonomie.
Identification of Ticks in Dogs with Ehrlichiosis
Authors: Karthika Koperumselvan
Published: July 2020

Examination of ticks collected from ehrlichiosis positive dogs revealed the occurrence of Rhipicephalus sanguineus. The distribution of ehrlichiosis in dogs is related to the spreading of vectors. Ehrlichia canis is the etiologic agent of canine monocytic ehrlichiosis (CME) and recognized as the most prevalent tick-borne disease affecting dogs and is transmitted by the brown dog tick Rhipicephalus sanguineus with an expanding global distribution. Infection of the vertebrate host occurred when an infected tick ingested a blood meal which in turn contaminated the feeding site with its salivary secretion. Blood transfusions from infected donors can also transmit the organisms. Hence, identification of ticks is necessary to detect the disease affecting dogs.
Systems-of-Systems Taxonomy: Space and Airborne Systems Perspective
Authors: D. Nguyen John
Published: July 2020

This chapter discusses the taxonomy of Systems-of-Systems (SOS) with a focus on space and airborne systems perspective. A discussion with a broad view of taxonomy with considerations for space and airborne systems classification, including SOS and Family-of-Systems (FOS), will be presented. The chapter defines taxonomic categories considering dimensions in the classification of space and airborne SOS based on their acquisition strategy, operational mode, and problem domain. Commercial and military acquisition strategies will be addressed along with their intentional operational modes and problem domains. The space and airborne systems discussed will be Satellite Communication (SATCOM) systems, sensing and imaging satellite systems and Positioning-Navigation-and-Timing (PNT) satellite, and military and commercial aircraft systems. The chapter provides examples on notional military SATCOM and manned aircraft systems.
Digit Sums and Infinite Products
Authors: Riasat Samin
Published: July 2020

Consider the sequence un defined as follows: un=+1 if the sum of the base b digits of n is even, and un=−1 otherwise, where we take b=2. Recall that the Woods-Robbins infinite product involves a rational function in n and the sequence un. Although several generalizations of the Woods-Robbins product are known in the literature, no other infinite product involving a rational function in n and the sequence un was known in closed form until recently. In this chapter we introduce a systematic approach to these products, which may be generalized to other values of b. We illustrate the approach by evaluating a large class of similar infinite products.
Forest Soil Water in Landscape Context
Authors: Kučera Aleš , Samec Pavel , Bajer Aleš , Ronald Skene Keith , Vichta Tomáš , Vranová Valerie , Swaroop Meena Ram , Datta Rahul
Published: July 2020

Forests play an irreplaceable role in linking the water cycle with the functions of soil. Soil water not only enhances the stability of forests, but also its run-off and evaporation affects the growth of plants in different ecosystems. The forest soil water balance is contextualized within the immediate and more global landscapes, in terms of relations of water to the soil environment and bedrock, participation in the local water cycle within a catchment basin and in the global cycle between ecosystems. Modifications by human civilization can have significant impacts, including erosion intensification, eutrophication, salinization, spreading of single-species plantations, and regime shifts. Forests regulate the movement of water in the soil environment by reducing the intensity of run-off. Such moderated run-off prevents the occurrence of flash floods, maintaining continuous availability of water for plant and human use. Participation of soil water in the cycling of elements in forests is modified by soil organic matter balance. The preservation of hydric functions in forest soils depends on prioritization of water balance restoration in every catchment basin enclosing the local element cycle. More fundamentally, the development of a synergistically interlinked system, centered around the soil-forest-water-civilization nexus, must become an urgent priority.
Soil Carbon Restoration through Conservation Agriculture
Authors: Chatterjee Snigdha , Ghosh Satarupa , Pal Prasanna
Published: July 2020

Poor soil fertility and soil degradation induced by persistent conventional farming with repeated tillage and removal or in situ burning of crop residue are major limitations to food security and environmental sustainability. However, degraded agricultural lands with depleted soil organic carbon (SOC) stocks are capable of soil carbon restoration through improved management practices like aggregation, humification and deep placement of C that can increase SOC seques-tration. According to FAO, conservation agriculture (CA) is arrived at as a solution to restore SOC with three pillars of minimum soil disturbance, permanent organic soil cover and diversified crop rotations. A significant increase in SOC levels under zero tillage (ZT) over conventional tillage (CT) was found; returning more crop residues to the soil is associated with an increase in SOC concentration that is further increased by crop diversification. Additionally, the incorporation of high-value trees with CA is treated as a working model for C storage. Thus, conservation agriculture is an operational approach to restore SOC that aggrades soil, reduces environmental footprints and makes agricultural systems more resilient to climate change.
The Interannual and Interdecadal Variability in Tropical Cyclone Activity: A Decade of Changes in the Climatological Character
Authors: R. Lupo Anthony , Heaven Brendan , Matzen Jack , Rabinowitz Jordan
Published: July 2020

During the last decade, there has been concern that the frequency or intensity of tropical cyclones (TCs) has increased. Also, climate models have shown varying results regarding the future occurrence and intensities of TC. Previous research from this group showed there is significant interannual and interdecadal variability in TC occurrence and intensity for some tropical ocean basins and sub-basins. This work examines global TC occurrence and intensity from 2010 to 2019 and compares this period to the same quantities from 1980 to 2009. The data used here are obtained from publicly available TC archives. Globally, the number of TC occurring over the latest decade is similar to the previous decade. However, while the 40-year trend shows an increase in TC, only intense hurricanes have shown an increase. The Atlantic Ocean and North Indian Ocean Basins show increases in TC activity, especially intense storms. The Southern Hemisphere and West Pacific Region show decreases in TC activity. In the West Pacific, intense TC did not increase, but the fraction of storms classified as intense increased. Only East Pacific TC activity showed no significant short- or long-term trends. Interannual and interdecadal variability in each sub-basin was found and there were some differences with previous work.
Anthropological and Paleodietary Analysis of Human Remains: A Case Study from the Teutonic Settlement of Torre Alemanna in Puglia (Cerignola, FG, Italy)
Authors: Andriani Fabrizia , Baldassarre Francesca , Sassanelli Grazia , Sublimi Saponetti Sandro , Valdiosera Cristina , Vigliarolo Ilaria
Published: July 2020

The main object of this paper is to reconstruct the presence of the knights of the Teutonic Order in the archeological site of Torre Alemanna (Foggia, Italy), one of the best preserved Teutonic production sites. This is an interdisciplinary study that includes archeological and anthropological research combined with the paleonutritional results and radiocarbon dating. Specifically, for this study, the area 5 of the complex has been investigated. The cemetery is located in the northwest corner of the complex, and the burials are probably dated at the beginning of the Teutonic settlement. In order to draw conclusions about their presence, attention has been focused primarily on ergonomics activities, injuries, morphological and metric characters, diet, and dating.
Metabolic Syndrome and Pathogenesis of Obesity-Related Adverse Outcomes in Pregnancy
Authors: Sugimura Motoi
Published: July 2020

Obese women with metabolic syndrome are at increased risk for cardio-thrombo-metabolic dysfunction that leads to pregnancy-related venous thromboembolism (VTE), hypertensive disorders of pregnancy (HDP), and gestational diabetes mellitus (GDM). Indeed, maternal death secondary to a pregnancy-related VTE has an enormous impact on the childbearing population. Recent research has provided evidence that elucidates the pathogenesis of adverse outcomes in obese pregnant women with metabolic syndrome. The chronic inflammation elicited by dysregulated infiltration of macrophages into adipose tissue and increased thrombin generation by inflammatory cytokines with activation of the tissue factor pathway may play important roles in the pathogenesis; however, a simple question has yet to be answered. Specifically, “why does prepregnancy obesity increase the risk of pregnancy-related VTE in association with a high estrogenic and prothrombogenic state?” The present review of the extant literature has focused on further understanding obesity-related adverse outcomes in pregnancy by elucidating the underlying pathogenesis of metabolic syndrome.
Simultaneous Bilateral Joint Arthroplasties in Treatment of Osteoarthritis
Authors: Radunović Aleksandar , Vulović Maja , Aksić Milan , Radunović Ognjen , Matić Aleksandar
Published: July 2020

Osteoarthrosis is the most common chronic joint condition, the aetiology of which is still not completely clear. Initial phases of disease are treated conservatively applying physical rehabilitation procedures and medications. Advanced stages need surgical treatment with numerous procedures, depending on the joint affected. Joint arthroplasties are procedure of choice, especially for big joints of the extremities. As osteoarthrosis occurs bilaterally very frequently, there are a growing number of patients in need for operation of both joints. Those procedures can be performed under single anaesthesia or staged procedure, with delay between two surgeries. There are many advantages and disadvantages of both approaches cited by different authors. There is consensus of authors in available articles regarding benefits of single-stage procedure: lower cost, shorter hospital stay, single rehabilitation period and better functional results. Authors disagree about safety of a single-stage bilateral procedure as well as incidence of complications and criteria for selection of patients for safe performing of simultaneous procedure.
Pandemia de Covid-19 e destruição da natureza: uma crítica baseada no marxismo ecológico
Authors: Peneluc Magno Da Conceição
Published: July 2020

A relação que o ser humano concretiza com a natureza por meio do trabalho é a premissa ontológica fundante do marxismo ecológico. As relações de produção, a precarização do trabalho e a luta de classes encontram-se dialeticamente relacionados com a degradação ambiental, pois o sistema produtivo utiliza-se do trabalho humano e da natureza como meios de produção, levando a impactos socioambientais que podem limitar a produção. Neste cenário de degradação da natureza e de precarização do trabalho, como uma pandemia pode evoluir historicamente?
La huella generacional del magisterio femenino en Extremadura (1958-2018)
Authors: Cambero Cambero Rivero Santiago , García Romero Marta
Published: July 2020

Tras los avances socio-políticos en favor de la igualdad de género, aún existen hombres y mujeres realizando roles diferentes, condicionados por valores del patriarcado en España. Tales circunstancias impregnan todos los ámbitos de la sociedad, entre los que se incluye el educativo. Este artículo muestra los resultados de una investigación sobre la evolución histórica del ejercicio del magisterio de cuatro generaciones de mujeres desde 1958 a 2018 en Extremadura. Tanto la perspectiva de género como la generacional, fueron los ejes de orientación para este análisis retrospectivo basado en las biografías de cinco mujeres maestras, a lo largo de sesenta años en la sociedad extremeña. Como estrategia espacio-temporal de investigación se realizan las entrevistas desde la concepción de la huella generacional, que profundiza en los procesos de transferencia de conocimientos, habilidades y actitudes entre las distintas generaciones de maestras en las organizaciones escolares extremeñas, materializado en la práctica docente.After the socio-political advances in favor of gender equality, there are still men and women performing different roles, conditioned by patriarchal values in Spain. Such circumstances spread all areas of society, including the educational context. This article shows the results of a research about the historical evolution of the teaching practice of four generations of women from 1958 to 2018 in Extremadura. Both gender and generational perspectives were the focal points of this retrospective analysis based on the biographies of five women teachers, throughout sixty years of changes in Extremadura society. As a space-time research strategy, it is approached from the conception of the generational trace, which deepens in the processes of knowledge, skills and attitudes transfer between the different generations of teachers in the Extremadura school organizations, materialized in teaching activity.
Competencias y funciones profesionales: un análisis aplicado a la titulación de trabajo social en la universidad de la Rioja
Authors: Carbonero Muñoz Domingo , Cuesta Ruiz Clavijo Ana Belén , Caparrós Civera Neus , Serrano-Martinez Cecilia
Published: July 2020

El artículo aborda las competencias profesionales, las funciones definidas por la ANECA (2004) y los ámbitos de intervención en Trabajo Social. Mediante una encuesta exploratoria en La Rioja se estudia la opinión profesional de 70 trabajadores sociales en activo. Paralelamente, se desarrolla una metodología de investigación cualitativa mediante tres grupos de discusión formados por profesionales y 32 grupos de reflexión integrados por alumnos de grado en Trabajo Social. Las principales discusiones desde el ámbito profesional y de los estudiantes, se sitúan en torno a la metodología de aprendizaje activo o las prácticas de intervención profesional. Finalmente, los resultados obtenidos se incorporan en forma de recomendaciones en la reforma del título de grado.This paper addresses the professional skills in the Social Work degree and the professional’s role and the main domains of Social Intervention defined by ANECA (2004). The opinion in Social Worker is studied by an exploratory survey in La Rioja. In summary, it was collected 70 cases of Social Workers in professional. At the same time, it was developed a qualitative methodology by three groups of discussion formed by Social Worker and 32 groups of reflexions by students on Social Work. The active learnership or the social intervention practices are indicated such a relevant finding by the professionals and the students. At the end, the results are incorporated in the changes of the degree. Specifically, by recommendations in the Social Work degree.
Paleolítico medio de aspecto postachelense en la depresión inferior del Guadalquivir
Authors: Vallespí Enrique
Published: July 2020

-
Mitos y creencias de origen prehistórico : las piedras de rayo
Authors: García Castro Juan Antonio
Published: July 2020

-
«Sistemas expertos» en arqueología : valoración de las hipótesis
Authors: Sánchez Meseguer José L.
Published: July 2020

-
Presentación
Authors: Muñoz Amilibia Ana María
Published: July 2020

-
Historiografía y novedades del arte mueble Paleolítico en la Peninsula Ibérica
Authors: Menéndez Fernández Mario
Published: July 2020

Este trabajo pretende resumir los numerosos hallazgos realizados en el arte mobiliar paleolítico de la Península Ibérica en los últimos años, así como recoger la abundante bibliografía que se ha generado. Paralelamente a este aumento del registro mobiliar, las últimas excavaciones y nuevas dataciones han cambiado parcialmente la visión de algunas fases paleolíticas, fudamentalmente el Magdaleniense cantábrico. Esta nueva situación afecta muy directamente a la rígida identificación de temas y convenciones en el arte paleolítico con determinadas fases culturales.This paper summarizes the latest and numerous findings in Palaeolithic mobiliar art and their historiograhy in the Iberian Península, specially of Cantabrian área. Recent research has considerably changed our knowledge about the diverse phases of Upper Palaeolithic sequence. These new circumstances are changing our perspectives for a better understanding of the mobiliar art.
Ebusus Phoenissa et Poena : la isla de Ibiza en época fenicio-púnica
Authors: Costa Benjamí , Fernández Jordi H.
Published: July 2020

Los resultados de las investigaciones arqueológicas realizadas en Ibiza en los últimos veinticinco años, permiten concluir que el proceso de colonización de la isla se desarrolló en dos fases claramente diferenciadas: El primer establecimiento semita fue realizado en el siglo vii a.C. por fenicios occidentales y se vincula a la expansión del círculo colonial del Estrecho de Gibraltar. El segundo, supuso el asentamiento en Ibiza de contingentes púnicos de población, desde fines del siglo vi y sobre todo durante el V a.C. Este hecho, junto al desarrollo de la población existente, hizo posible la ocupación de toda la isla que, además de ser un importante puerto comercial, pasa a ser también un centro productor y exportador, a la vez que quedará vinculada al ámbito púnico liderado por Cartago. De esta manera, en la isla se forjará una formación social púnico-ebusitana que, en los siglos siguientes, experimentará un notable desarrollo. Tras la segunda Guerra Púnica, Ibiza quedará bajo dominio romano como ciudad federada, iniciando entonces un largo proceso evolutivo, que la llevará a integrarse plenamente en el Imperio, como municipio latino, en el siglo i d.C.The archaeological research carried out in Ibiza in the last twenty five years allows US to conclude that the process of the island's colonization in Antiquity took place in two clearly different phases: The first semitic settiement was undertaken by western Phoenicians and was related to the expansión of the colonial circle of the Straits of Gibraltar in the 7th century B.C.. The second one, from the end of the 6th century and throughout the 5th century B.C., gave rise to the establishment in Ibiza of new groups of Punic settiers. This fact, together with the growth of the existing population, made possible an important urban development and the occupation of the whole of the island. In this way, Ibiza, besides being a trading port, became also an important producer and exporter of its own goods, while at the same time becoming integrated into the Punic circle where Carthage played a leadership role. Thus, a Punic-ebusitan society was formed in the island, which flourished in the following centuries. After the second Punic War, the island was left under Román's domination as a federated town, at which point began a long process of transformation which lead Ibiza to its full integration in the Román Empire, as a latín municipality, in the 1st century A.D.
El ídolo de Peñalavieja (La Aguilera, Cantabria) : una nueva manisfestación del arte esquemático en el monte Hijedo
Authors: Gutiérrez Morillo Alonso , García Aguayo Ángel
Published: July 2020

Se trata en este trábelo la descripción, contextualización y encuadre cronológico de una nueva manifestación de arte esquemático en la zona del Monte Hijedo (Cantabria), el ídolo que hemos denominado de Peñalaveja. Presenta características que lo sitúan en un punto intemiedio entre los ídolos del tipo Peñatu (Asturias) y los de Peña Lostroso, El Redular (Cantabria) y Portillo Viejo (Burgos). En relación con estos últimos parece descubrirse una cierta organización espacial. Todo ello dentro de una banda cronológica que iría desde el Calcolítico/Bronce Inicial al Bronce Medio.We deal in tliis paper with the description, contextualization and chronological framing oí a new expression ofschematic art in the área of Mount Hijedo (Cantabria) the idol that we have named after Peñalaveja. It shows features that sitúate it in a halfway point between the idols of the kind Peñatu (Asturias) and those of Peña Lostroso, El Redular (Cantabria) and Portillo Viejo (Burgos). In connection with these last one everything seems to indícate some kind of spatial organization. All this within a chronological band that would extend from the Chalcolithic/lnitial Bronze Age to the Middie Bronze Age.
Aportaciones del estudio de la industria lítica a la comprensión del fenómeno calcolítico : yacimiento de Llanete de los Moros (Montero, Córdoba)
Authors: Gutiérrez Sáez Carmen
Published: July 2020

Se destaca la abundancia de fragmentos mesiales de lámina, partidos intencionalmente, y su propuesta como tipo específico a partir del trabajo de Arméndariz e Iriagaray (1991-92). Se avanza en su importancia como indicador del cambio de concepto durante el Calcolítico frente al utillaje Utico de momentos anteriores.This paper wants to remark true outstanding presence of intentionally broken medial parts of black flakes, since Arméndariz and Iriagaray (1991-92) proposed them as specific lithic type. It may suggest conceptual changas during Calcholithic times in opposition to eartier lithic implements.
Las investigaciones del Marqués de Cerralbo en el «Cerro Villar» de Monreal de Ariza : Arcobriga
Authors: Jiménez Sanz Carmen
Published: July 2020

Se presenta un avance de los trabajos que se están realizando sobre la aportación del xvii Marqués de Cerralbo a la disciplina arqueológica, orientados al conocimiento de la Historia de la Arqueología española en las primeras décadas del siglo xx. Se revisa el caso del yacimiento romano de Arcobriga desde las circunstancias que motivaron su descubrimiento, objetivos de las investigaciones, metodología, desarrollo de los trabajos de campo y gabinete, intervención de otros especialistas, etc., partiendo de una breve introducción a la figura del Marqués de Cerralbo.We introduce an advance ofour work about XVII Marquis of Cerralbo and his contribution to the spanish Archaeology History, in the first decades of this century. Following a brief history about his Ufe, you will find a review of the case of Arcobriga's román site: circumstances that involved its discovery, research objectives, methodology, development of works, contributions of any other specialists and so on.
Nueva interpretación de un mosaico de la Colonia Patricia Corduba
Authors: San Nicolás Pedraz María del Pilar
Published: July 2020

Se valora de nuevo un mosaico de la colonia Patricia Corduba con la representación del águila sobre un globo terrestre, como alusión a Júpiter, un unicum en cuanto a su iconografía en la musivaria hispano-romana.A mosaic of the Patricia Corduba colony is assessed again. An eagle over ttie earth globe representing tfie god Júpiter, constitutes an unicum in teh hispano-roman musivaria iconography.
Paleoecología y gestión del combustible en la ocupación del Auriñaciense arcaico de la cueva de El Castillo (Puente Viesgo, Cantabria)
Authors: Cabrera Valdés Victoria , Uzquiano Paloma
Published: July 2020

El análisis antracológico correspondiente al nivel 18 (Auriñaciense arcaico) de la cueva del Castillo (Cantabria, Norte de España), ha puesto en evidencia una flora compuesta por Betu\a, P'mus t. sylvestris y Sorbus aria. Las dataciones "C en espectrometría de masa por acelerador obtenidas sobre carbón, sitúan este nivel en el Pleniglaciar medio (37-40Ka.). Las estimaciones paleoambientales obtenidas a través de los estudios de los glaciares de las montañas cantábricas y del Pirineo occidental, nos han permitido correlacionar la Antracología y el Glaciarismo. El paisaje vegetal alrededor del habitat prehistórico estaría compuesto esencialmente por especies pioneras que tian coionizado unos sueios Ubres de hieios pero sometidos a condiciones periglaciares debido a que este iiabitat estaba próximo de ia cota aititudinal aicanzada por ios giaciares de montaña. Estos serian responsabies en parte dei desfase aititudinai y zonai de ia vegetación si io comparamos con ias condiciones actuaies. Los trayectos diarios recorridos por ios grupos liumanos a ia búsqueda de recursos económicos diversos, entre ellos la leña para encender fuego, se verían infiuídos en gran parte por estos condicionantes ambientaies.Charcoal analysis from archaeological levéis oí El Castillo (Cantabria, Northern Spain), have yielded Betula; Pinus t. sylvestris and Sorbus aria. The AMS C obtained on the same samples place these levéis on the Middie Pleniglacial (37-40Ka.). Palaeoenvironmental results obtained in glacial deposits from Cantabrian mountains and western Pyrenees let us to compare charcoal analysis and glaciation patterns. Landscape around this prehistoric settiement is formed essentially by pioneer vegetation cover along free-glace areas but under periglacial conditions. Altitudinal position of this site and ttie glaciai zones are similar. This particuiarity explain the altitudinal gap of the vegetation in tiiis área. Diary routes tallen by humans looking for their económical resources, as well as tlieir woodfire, were infiuenced by these palaeoenevironmental conditions.
Propuesta de clasificación técnica de los sistemas de explotación de las BN1G de producción (núcleos)
Authors: Castañeda Clemente Nuria
Published: July 2020

Se propone una clasificación de los sistemas de explotación de las BN1G de producción a partir de las relaciones entre los distintos atributos que caracterizan a los núcleos. Esta clasificación se estructura en tres niveles. El primero discrimina los sistemas de explotación según su número de superficies de talla. En el segundo nivel, la característica jerarquizadora es la relación geométrica entre superficie /plataforma o entre superficies de talla. El tercer y último nivel atiende a la dirección en la que se explotan estas superficies. This work consists in a classification of the production BN1G (cores) exploitation systems, based on tlie reiatlonsfíip between ttie different cíiaracteristic core forms features. Tfiere are tfiree levéis of classification.The first one discrimínate between exploitation systems by tlieir number of debitage surfaces. On the second level the hierarchical feature is the geomethcai relationship between the debitage surface and striking platform or between debitage surfaces. Third level is the direction on exploitation of surfaces.
Esquemas operativos y conocimiento técnico : el caso del yacimiento solutrense del valle Almoinha (Torres Vedras, Portugal)
Authors: Maíllo Fernández José Manuel
Published: July 2020

En este trabajo se identifican los esquemas operativos empleados en la realización de las hojas de laurel del yacimiento solutrense de Vale Almoinha. A su vez, se intenta conocer los diferentes conocimientos técnicos empleados por los artesanos llegándose a identificar dos tipo: un grupo que posee todos los conocimientos técnicos y otro que podemos denominar como aprendices.Dans cet travail ont présent l'analyse des esquemes téchniques des feuilles de laurier solutréennes á Vale Almoinha. Aussi ont présent la vahabilité du coinnaissances téchniques impliques dans sa réalisation.
El paleolítico medio cantábrico y sus relaciones con el área pirenaica
Authors: Cabrera Valdés Victoria
Published: July 2020

-
Industrias óseas del paleolítico y postpaleolítico pirenaico en relación con los nuevos hallazgos de Jarama II (Guadalajara)
Authors: Jordá Pardo Jesús Francisco , Adán Álvarez Gema
Published: July 2020

-
Placas de hueso perforadas procedentes de la necrópolis de El Cigarralejo (Mula, Murcia)
Authors: Ruano Ruiz Encarnación , Montero Ruiz Ignacio
Published: July 2020

-
La inscripció olímpica del barcinonense Lucius Minicius Natalis Quadronius Verus
Authors: Verrie Frederic Pau
Published: July 2020

-
Industria lítica en el megalitismo del noroeste peninsular : consideraciones generales
Authors: Fábregas Valcarce Ramón
Published: July 2020

-
Espejos hispanorromanos de plomo : un nuevo tipo de producción plúmbea detectado en la Península Ibérica
Authors: Aurrecoechea Fernández Joaquín
Published: July 2020

Existen pocos ejemplares de espejos fabricados en plomo durante el imperio Romano, algunos de los cuales han sido encontrados en nuestro país. En el presente artículo se dan a conocer los hallazgos de este tipo procedentes de Hispania. La importancia del lote de piezas que estudiamos radica en el desconocimiento actual sobre estas producciones romanas, inéditas en nuestras publicaciones nacionales.
La ictiofauna del yacimiento tartésico de la calle del Puerto, número 10 (Huelva) : consideraciones generales
Authors: Roselló Izquierdo Eufrasia , Morales Muñiz Arturo
Published: July 2020

La ictiofauna del yacimiento tartésico de la calle del Puerto, número 10, está siendo objeto en estos momentos de un estudio pormenorizado que verá la luz en breve (Roselló y Morales, en prep.)- Debido al interés que tanto cultural como ambientalmente reviste este sector de la fauna arqueológica consideramos oportuno realizar un avance de dicho informe en donde se comenta la importancia e implicaciones de estos hallazgos. Éste, a su vez, conlleva implicaciones adicionales sobre la actividad pesquera en el litoral sudoccidental durante el phmer milenio a.C. que puede ser de importancia capital a la hora de elaborar teorías sobre la economía de las culturas locales.
A propósito de la cronología final del poblado ibérico del Molí d'Espigol (Tornabous, Lleida)
Authors: Garcés Estallo Ignasi , Cura Morera Miquel
Published: July 2020

-
Mango de llave broncíneo de Albadalejo (Ciudad Real)
Authors: Aurrecoechea Fernández Joaquín
Published: July 2020

-
Análisis estilístico de los conjuntos del «Canjorro de Peñarrubia», «Doña Clotilde», «Abrigo del tío Campano» y «Selva Pascuala»
Authors: López Payer Manuel , Soria Lerma Miguel
Published: July 2020

-
Una cita de Benjamín de Tudela como pretexto : la muralla romana de Tarragona
Authors: Ripoll Perelló Eduardo
Published: July 2020

-
Seres, signos y sueños : la interpretación del arte paleolítico
Authors: Freeman Leslie G.
Published: July 2020

-
Curso «Introducción al arte rupestre prehistórico de la Península Ibérica», Ávila, 9-12 de julio de 1991
Authors: Martínez Perelló María Isabel
Published: July 2020

-
Rasgos etnográficos del arte rupestre naturalista en Murcia
Authors: Mateo Saura Miguel Ángel
Published: July 2020

-