bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cuando los escombros generan valor: del control de las alteraciones a la valorización del legado minero
Authors: Tsiouti Andri 
Published: May 2020

La crisis general de la minería en los años 60 y 70 deja una inmensa cantidad de vestigios dispersos por toda España. Las extracciones alteran gravemente el medio natural, lo que se intenta paliar con disposiciones legales que se van actualizando desde los 80. Se realizan proyectos de restauración en varias explotaciones, que al principio se limitan a in tervenciones sencillas de corrección paisajística. Al crecer la sensibilidad ambiental, aparecen proyectos más ambiciosos. Al mismo tiempo, las minas se empiezan a apreciar como lugares de memoria e identidad local. Sin embargo, la preocupación por eliminar la contaminación da lugar, a menudo, a la destrucción de este patrimonio. Este artículo examina primero la evolución de la legislación minera en relación con los proyectos de restauración. Y a continuación plantea algunas reflexiones sobre el difícil equilibrio entre la remediación ambiental y la valorización patrimonial en la experiencia española.
The general crisis of mining sector in the 60s and 70s leaves a huge amount of traces dispersed throughoutSpain. Besides that, extractive operations provoke serious alterations on the natural environment that start to be controlled by legal regulations which are being renovated since the 80s. In this context, restoration worksget place in various mining sites which in the beginning are limited to simple landscape interventions. Since environmental awareness increases, some more ambitious projects start to appear. At the same time, mines start to be valued as places of memory and local identity. However, the necessity to eliminate contamination results, in many cases, to the destruction of mining heritage. The article examines the evolution of mining legislation in relation to restoration projects. And secondly, some reflections are offered on the difficult balance between environmental remediation and heritage valorization through examples from Spain.
El arte urbano como dinamizador de comunidad: el caso de Medellin-Colombia
Authors: Gaviria Puerta Nino Andrey 
Published: May 2020

El grafiti, arte urbano, arte callejero y demás, son conceptos que enuncian un fenómeno cada vez más creciente en la actualidad, el cual se refiere a las intervenciones gráficas que operan sobre las superficies que limitan o contienen el espacio público de la ciudad; a su vez, dicho fenómeno ha experimentado también variaciones en las apreciaciones que sobre él se tienen, valoraciones que van desde lo clandestino, reaccionario hasta aquellas que lo ven como un elemento enriquecedor de la ciudad. Dicho fenómeno es visto como parte de una dinámica social que inmiscuye grafiteros, artistas, autoridades municipales y comunidades locales, incitando la pregunta por los procesos comunitarios que este tipo de actuación desencadena. A su vez, también se trata de registrar los resultados en el paisaje urbano y, si bien este fenómeno puede leerse en variados contextos, se tomará la ciudad de Medellín (Colombia) estudio de caso.
Graffiti, urban art, street art,and related terms, are concepts that enunciate a growing phenomenon, they refer to the graphic interventions that act on the surfaces that limit or contain the public space of the city; However, this phenomenon has experienced variations on its perception, these assessments range from the clandestine/reactionary to those that see it as an enriching element to the city. This phenomenon is seen as part of a social dynamic that interferes with graffiti artists, artists, municipal authorities and local communities, prompting the question about the community processes that this type of action triggers. At the same time, it is also a matter of registering the results in the urban landscape and, although this phenomenon can be read in various contexts, the city of Medellín (Colombia) will be taken as a case study.
Territorio, viviendas y áreas de incendios forestales de interfaz: localidades periurbanas en torno al Gran Santiago, Chile
Authors: Garay Moena Rosemarie , Castillo Miguel , Tapia Ricardo , Vergara Javiera 
Published: May 2020

Dada la creciente ocurrencia e intensidad de los eventos, ya sean causados o no por el cambio climático, es esencial repensar los instrumentos de planificación y gestión del territorio, que en Chile, en el plano comunal,son los Planes Reguladores Comunales (PRC) definidos por la Ley General de Urbanismo y Construcciones y la Ordenanza General de Urbanismo y Construcción (OGUC). Se analizan viviendas instaladas en áreas rurales y periurbanas, sin características técnicas de seguridad contra incendios de fuente interna o externa (interfaz forestal). Esta ausencia de características de seguridad puede deberse a que son desconocidas, no cumplen con las regulaciones, están obsoletas o no hay requisitos para actualizarlas, ya que con frecuencia no están registradas o aprobadas en los municipios. Se revisan las regulaciones chilenas, estadounidenses, europeas y australianas con respecto al desempeño de los edificios y su entorno inmediato, vecindario, ciudad y comuna, entregando estándares de calidad y recomendaciones, incluyendo la gestión de riesgos de desastres.
Given the increasing occurrence and intensity of events, whether or not caused by climate change, it’s essential to rethink the territory management and planning instruments, which in Chile are the Communal Regulatory Plans (PRC), General Urban Planning and Construction Law, and General Ordinance of Urbanism and Construction (OGUC). This research analyzes wood houses installed in rural and peri-urban areas, without technical safety features against an internal or external source fire (forest interface). This absence of safety features might be because they are unknown or they don't comply with the regulations, or they are obsolete and there is no requirement to update them since they are frequently not registered or received at the Municipal Works Directorates (DOM). The Chilean, American, European and Australian regulation regarding the buildings performance assurance and their immediate surroundings, neighborhood, town, and commune are reviewed, delivering quality standards and recommendations, including Disaster Risk Management.
Morphology and Molecular Biology of Benthic Java Sea Shark Ray Rhina ancylostoma Bloch and Scheider 1801 (Elasmobranchia: Rhinidae)
Authors: Hartoko Agus , Pringgenies Delianis , Anggelina Amelia Cahya , Matsuishi Takashi 
Published: May 2020

Aims: Morphology and molecular biology of a rare shark-rays Rhina ancylostoma caught from Java sea.Indonesia.
Study Design: Morphology, morphometry and DNA analysis of the fish specimen.
Place and Duration of Study: Sample wascollected from fish auction hall at north Java, specimen now stored in Lab of Ichtiology. Department of Fisheries. Faculty of Fisheries and Marine Science. Diponegoro University, between March to December 2019.
Methodology: DNA extraction, amplification and molecular identification of fish sample.Yield of DNA supernatant transferred in an eppendeorf tube and stored in 4°C for further process. PCR amplification. Part of Mithocondrial DNA COI (Cytochrome Oxidase subunit-I) gen was amplified using Polymerase Chain Reaction (PCR) method. Then matched up with GenBank database at NCBI using Basic Local Alignment Search Tool (BLAST) analysis. Philogenetic tree was set using Neighbor-Joining method, Kimura-2 parameter model and 1,000 bootstrap replication. Some sequence from NCBI GenBank were inputted into philogenetic tree as comparison.
Results: Rhina ancylostoma as one of demersal shark rays catch from tropical shallow Java sea. Range of Total Length 73 – 200 cm and dominant Total Length catch 125 cm. Morphologyis characterised with three lines of spine thorn on the head, morphometry characteriswide of head to TL ratio 0.77. DNA analysis had confirmed the specimen of AH2 as Rhina ancylostoma based on homological match up of sequence of Gen Bank database with reference accesion number KU721837.1 with length sequence of 665 bpand identical similarity of 99.84% for specimen Accession number LC 505461.
Conclusion: Rhina ancylostoma as one of demersal shark rays catch from Java sea. Range Total Length (TL) of catch 73 – 200 cm and dominant TL catch range 101 – 125 cm. Morphologically character of wide head ratio with three lines of spine thorn on the head. Nearest genetic distance of 0.02 to Rhincobatushorkelii and 0.017 to R. australiae. Longest genetic distance of 0.243 to Potamotrygon motoro.
Electrocardiographic and Echocardiographic Findings in Patients Older than 60 Years: A One Year Pilot Study
Authors: Oluwabunmi Ajala Aisha , Ilanye Bell-Gam Hope 
Published: May 2020

Background: Cardiovascular disease (CVD) is the most frequent diagnosis in elderly people and is the leading cause of death in both men and women older than 65 years of age. Age-related vulnerability to CVD is compounded by the cumulative effect of the normal aging process and cardiovascular risk factors over a lifetime. The study assessed the prevalence of electrocardiographic and echocardiographic abnormalities in patients older than 60 years at the geriatric unit of the University of Port-Harcourt Teaching Hospital.
Methods: A cross-sectional study was conducted over 50 patients admitted to the geriatric ward over one year. The subjects underwent blood pressure and anthropometric parameters clinical examinations. Evaluation of the cardiovascular system was done using resting electrocardiogram and echocardiography.
Results: The mean age of the subjects was 68.3±6.3 years with a female preponderance. Out of the 50 studied patients, 44 were admitted with a diagnosis of heart failure (HF). Preserved ejection fraction was present in 27 out of the 44 patients admitted for HF. Forty-seven patients had an abnormal LV geometry ranging from concentric remodeling to eccentric LV hypertrophy. Diastolic dysfunction was present in majority of the respondents 42 (84%). Resting ECG showed varying degrees of rhythm disturbances. Sinus tachycardia, bradycardia and left anterior fascicular blocks were the most prevalent rhythm disorders. Electrocardiographic LVH and left atrial abnormalities were present in 21 and 27 patients respectively. Prolonged QTc was present in only 4 patients.
Conclusion: Electrocardiographic and ultrasound abnormalities are common in elderly patients and this also reflects the high prevalence of CVD in these groups of patients. Thus, resting ECG and ultrasound should routinely be incorporated as one of the baseline assessments for elderly patients to identify potentially serious heart conditions and also serves as a basis for comparison during subsequent hospitalization.
Oxidal® Ameliorates the Ty1 Retrotransposition Induced by Methyl Methanesulfonate in Saccharomyces cerevisiae
Authors: Todorova Teodora , Dimitrov Martin , Ignatov Ignat , Gluhchev Georgi , Dinkov Georgi 
Published: May 2020

Aim: The aim of the study was to evaluate the potential of Oxidal® to decrease the Ty1 retrotransposition rate in a model system Saccharomyces cerevisiae.
Study Design: Saccharomyces cerevisiae cell suspensions were pre-treated with different concentrations Oxidal® and subsequently treated with 16mM methyl methanesulfonate. (MMS)
Methodology: The potential of various concentrations Oxidal® was evaluated based on “spot” test and Ty1 retro-transposition test.
Results: Data revealed that only 5% Oxidal® possesses some cytotoxic properties. Lack of Ty1 retro-transposition was observed after single treatment with 1, 2.5 and 5% Oxidal® concentrations.
On the other hand, all the tested concentrations showed promising results against the standard carcinogen methyl methane sulfonate. The most pronounced anti-carcinogenic and cytoprotective effects were observed after pre-treatment with 2.5% Oxidal®, which could be attributed to the antioxidant properties of the combination of ingredients; methylene blue, salicylic acid and caffeine. Further studies could reveal the exact mechanism of action of the supplement and the role of the antioxidant potential.
Conclusion: New data is provided concerning the potential of Oxidal® at low concentrations to protect Saccharomyces cerevisiae cells from MMS-induced Ty1 retro-transposition. The cytoprotective properties of the supplement were also obtained. These results could be considered as a basis for further studies revealing the exact mechanisms of cell protection of the Oxidal®. Additionally, our data could also serve as an important step of the in-depth research of a potential antiviral activity.
Three‐dimensional printing in radiation oncology: A systematic review of the literature
Authors: Rooney Michael K. , Rosenberg David M. , Braunstein Steve , Cunha Adam , Damato Antonio L. , Ehler Eric , Pawlicki Todd , Robar James , Tatebe Ken , Golden Daniel W. 
Published: May 2020

AbstractPurpose/objectivesThree‐dimensional (3D) printing is recognized as an effective clinical and educational tool in procedurally intensive specialties. However, it has a nascent role in radiation oncology. The goal of this investigation is to clarify the extent to which 3D printing applications are currently being used in radiation oncology through a systematic review of the literature.Materials/methodsA search protocol was defined according to preferred reporting items for systematic reviews and meta‐analyses (PRISMA) guidelines. Included articles were evaluated using parameters of interest including: year and country of publication, experimental design, sample size for clinical studies, radiation oncology topic, reported outcomes, and implementation barriers or safety concerns.ResultsOne hundred and three publications from 2012 to 2019 met inclusion criteria. The most commonly described 3D printing applications included quality assurance phantoms (26%), brachytherapy applicators (20%), bolus (17%), preclinical animal irradiation (10%), compensators (7%), and immobilization devices (5%). Most studies were preclinical feasibility studies (63%), with few clinical investigations such as case reports or series (13%) or cohort studies (11%). The most common applications evaluated within clinical settings included brachytherapy applicators (44%) and bolus (28%). Sample sizes for clinical investigations were small (median 10, range 1–42). A minority of articles described basic or translational research (11%) and workflow or cost evaluation studies (3%). The number of articles increased over time (P < 0.0001). While outcomes were heterogeneous, most studies reported successful implementation of accurate and cost‐effective 3D printing methods.ConclusionsThree‐dimensional printing is rapidly growing in radiation oncology and has been implemented effectively in a diverse array of applications. Although the number of 3D printing publications has steadily risen, the majority of current reports are preclinical in nature and the few clinical studies that do exist report on small sample sizes. Further dissemination of ongoing investigations describing the clinical application of developed 3D printing technologies in larger cohorts is warranted.
Multiresonant Thermally Activated Delayed Fluorescence Emitters Based on Heteroatom‐Doped Nanographenes: Recent Advances and Prospects for Organic Light‐Emitting Diodes
Authors: Madayanad Suresh Subeesh , Hall David , Beljonne David , Olivier Yoann , Zysman‐Colman Eli 
Published: May 2020

AbstractSince the first report in 2015, multiresonant thermally activated delayed fluorescent (MR‐TADF) compounds, a subclass of TADF emitters based on a heteroatom‐doped nanographene material, have come to the fore as attractive hosts as well as emitters for organic light‐emitting diodes (OLEDs). MR‐TADF compounds typically show very narrow‐band emission, high photoluminescence quantum yields, and small ΔEST values, typically around 200 meV, coupled with high chemical and thermal stabilities. These materials properties have translated into some of the best reported deep‐blue TADF OLEDs. Here, a detailed review of MR‐TADF compounds and their derivatives reported so far is presented. This review comprehensively documents all MR‐TADF compounds, with a focus on the synthesis, optoelectronic behavior, and OLED performance. In addition, computational approaches are surveyed to accurately model the excited state properties of these compounds.
Designing Outside the Box: Unlocking the Geometric Freedom of Melt Electrowriting using Microscale Layer Shifting
Authors: Liashenko Ievgenii , Hrynevich Andrei , Dalton Paul D. 
Published: May 2020

AbstractMelt electrowriting, a high‐resolution additive manufacturing technology, has so far been developed with vertical stacking of fiber layers, with a printing trajectory that is constant for each layer. In this work, microscale layer shifting is introduced through deliberately offsetting the printing trajectory for each printed layer. Inaccuracies during the printing of sinusoidal walls are corrected via layer shifting, resulting in accurate control of their geometry and mechanical properties. Furthermore, more substantial layer shifting allows stacking of fiber layers in a horizontal manner, overcoming the electrostatic autofocusing effect that favors vertical layer stacking. Novel nonlinear geometries, such as overhangs, wall texturing and branching, and smooth and abrupt changes in printing trajectory are presented, demonstrating the flexibility of the layer shifting approach beyond the state‐of‐the‐art. The practice of microscale layer shifting for melt electrowriting enables more complex geometries that promise to have a profound impact on the development of products in a broad range of applications.
Enhanced Brightness and Device Lifetime of Quantum Dot Light‐Emitting Diodes by Atomic Layer Deposition
Authors: Kim Gi‐Hwan , Noh Kyeongchan , Han Jisu , Kim Minsu , Oh Nuri , Lee Woongkyu , Na Hyon Bin , Shin Chansun , Yoon Tae‐Sik , Lim Jaehoon , Cho Seong‐Yong 
Published: May 2020

AbstractColloidal quantum dot light‐emitting diodes (QD‐LEDs) are one of the future emissive displays, but understanding charge transport mechanism at the interface and improving charge balances in the device are key challenges to the commercialization of QD‐LED. In this study, the ZnO interlayer is introduced by atomic layer deposition (ALD) technique to enhance the performance and lifetime of green‐emitting CdZnSeS/ZnS core/shell QD‐LEDs. Atomic force microscopy images of QD layer reveal that the thin film of ZnO deposited by ALD reduces the root‐mean‐square (RMS) roughness of the QD film to less than 2 nm, even though the average diameter of the individual QDs is about 10.9 nm, which results in the suppression of excess electron transport in QD‐LED devices. The enhanced performance (an improvement of maximum luminescence from 70 000 to 160 000 cd m−2) and operational stability (an improvement of operation lifetime from 20 to 61.5 h at 5000 cd m−2) of the QD‐LEDs result from the formation of the smoother interface between the QD and electron transport layers, which is indicated by deposition of thicker ALD ZnO or deposition of ALD ZnO after coating the ZnO nanoparticles as an electron transport layer.
A Potential Checkmate to Lead: Bismuth in Organometal Halide Perovskites, Structure, Properties, and Applications
Authors: Attique Sanam , Ali Nasir , Ali Shahid , Khatoon Rabia , Li Na , Khesro Amir , Rauf Sajid , Yang Shikuan , Wu Huizhen 
Published: May 2020

AbstractThe remarkable optoelectronic properties and considerable performance of the organo lead‐halide perovskites (PVKs) in various optoelectronic applications grasp tremendous scientific attention. However, the existence of the toxic lead in these compounds is threatening human health and remains a major concern in the way of their commercialization. To address this issue, numerous nontoxic alternatives have been reported. Among these alternatives, bismuth‐based PVKs have emerged as a promising substitute because of similar optoelectronic properties and extended environmental stability. This work communicates briefly about the possible lead‐alternatives and explores bismuth‐based perovskites comprehensively, in terms of their structures, optoelectronic properties, and applications. A brief description of lead‐toxification is provided and the possible Pb‐alternatives from the periodic table are scrutinized. Then, the classification and crystal structures of various Bi‐based perovskites are elaborated on. Detailed optoelectronic properties of Bi‐based perovskites are also described and their optoelectronic applications are abridged. The overall photovoltaic applications along with device characteristics (i.e., VOC, JSC, fill factor, FF, and power conversion efficiency, PCE), fabrication method, device architecture, and operational stability are also summarized. Finally, a conclusion is drawn where a brief outlook highlights the challenges that hamper the future progress of Bi‐based optoelectronic devices and suggestions for future directions are provided.
Hyperspectral monitor on chlorophyll density in winter wheat under water stress
Authors: Xie Yongkai , Feng Meichen , Wang Chao , Yang Wude , Sun Hui , Yang Chenbo , Jing Binghan , Qiao Xingxing , Saleem Kubar Muhammad , Song Jinyao 
Published: May 2020

AbstractLack of water can lead lower chlorophyll concentrations and yields. Based on the hyperspectral reflectance of winter wheat (Triticum aestivum L.), we analyzed the relationship between the canopy hyperspectral reflectance and the water‐stressed winter wheat. The correlation analysis (CA), partial least squares regression (PLSR), and successive progressions algorithm (SPA) were used to extract the important bands. Then the hyperspectral estimation models for chlorophyll density (ChD) by characteristic variables were established. The results showed that the reflectance in the visible regions increased gradually with an increasing water stress. In the near‐infrared (NIR) region, reflectance decreased with stress intensity. We extracted five and seven important waveband regions by CA and PLSR. Then we extracted right and nine important bands through SMLR, and 11 important bands were extracted by the method of SPA. We found that 427, 434, 749, and 814 nm contained important information about ChD of winter wheat after water stress. The model established by CA+SMLR was generally realized, whereas the ChD estimation models established by PLSR+SMLR and SPA with multiple linear regression had better performance, and the performance of the validation model was accurate and robust. The results of this study could provide theoretical basis and practical reference for accurate estimation of ChD in winter wheat after water stress.
Experimental study and modeling of organic solvent reverse osmosis separations through organosilica membranes
Authors: Dong Guanying , Nagasawa Hiroki , Kanezashi Masakoto , Tsuru Toshinori 
Published: May 2020

AbstractExceptionally stable, mechanically robust, and highly methanol‐selective organosilica membranes, including Bis(triethoxysiyl)acetylene (BTESA), fluorine‐doped bis(triethoxysiyl) methane (F‐BTESM), and Cetyltrimethylammonium chloride‐etched bis(trimethoxysiyl)hexane (CTAC‐BTMSH), were prepared and utilized for organic solvent reverse osmosis (OSRO) separations. The BTESA membrane showed optimal separation performance regarding methanol/toluene and possessed the highest levels of both permeation flux and rejection. Continuous measurements were performed to highlight the molecule size/shape discrimination of BTESA membranes using compounds such as methanol/methyl acetate, methanol/dimethyl carbonate (DMC) and methanol/methyl tert‐butyl ether (MTBE). Also, a generalized solution‐diffusion model was successful in predicting the permeation behaviors through organosilica membranes when used in an OSRO modality, and proved to be capable of accurate predictions on pressure‐dependent permeation flux and rejection for a wide range of feed concentrations (0–55 wt%) and pressures (2–14 MPa). This study lends important insight for the development of organosilica membranes and process design for the energy‐efficient OSRO separation of organic liquids.