bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tumors associated with radiotherapy: a case series
Authors: Garcia Mauricio , Hernandez Dary L. , Mendoza Sara , Buelvas Nelson , Alvarez Angelina , Esguerra Jose , Díaz Sandra 
Published: October 2020

AbstractBackgroundBreast cancer is the cancer with the highest incidence and mortality worldwide. Its treatment is multidisciplinary with surgery, systemic therapy, and radiotherapy. In Colombia, according to Globocan 2018, there is an age-standardized incidence rate of 44 per 100,000 women. Radiotherapy improves local and regional control in patients with breast cancer, and it could even improve relapse-free survival and overall survival in patients with nodal disease. The toxicity of this treatment in most cases is mild and transient, but in a low percentage of patients, radiotherapy-induced tumors may develop.Case presentationSeven Colombian patients treated for breast cancer at our institution developed radiotherapy-induced tumors between 2008 and 2018. The median age was 54.4 (range 35–72) years. Six patients had locally advanced tumors at the time breast cancer was diagnosed, and all of them received neoadjuvant or adjuvant chemotherapy and radiotherapy. The radiotherapy-induced tumors were five sarcomas, one of which was a well-differentiated angiosarcomatous vascular lesion with negative c-Myc (benign lesion), and the remaining patient had basal cell carcinoma associated with radiotherapy.ConclusionsSarcomas are the most common radiotherapy-induced tumors after breast cancer treatment. These are rare, aggressive tumors and represent between 0.5% and 5.5% of all sarcomas. Basal cell carcinoma has also been associated with breast cancer treatment. The management is individualized and multimodal, including surgical resection and chemotherapy. Different studies have shown that radiation therapy is a risk factor for the development of soft tissue tumors.
Use of Higher-Harmonic and Intermodulation Generation of Ultrasonic Waves to Detecting Cracks due to Steel Corrosion in Reinforced Cement Mortar
Authors: Climent-Llorca Miguel Ángel , Miró-Oca Marina , Poveda-Martínez Pedro , Ramis-Soriano Jaime 
Published: October 2020

AbstractThe aim of this work was to provide further confirmation of the possible use of non-linear ultrasonic techniques for detecting the cracking due to corrosion of steel reinforcements in concrete. To this end accelerated steel corrosion tests have been conducted on model reinforced cement mortar specimens, while monitoring the appearance and width evolution of visible surface cracks, and performing non-linear ultrasonic measurements based on the phenomena of harmonic distortion and intermodulation. A new parameter, based on the difference between the amplitude of the fundamental frequency and the sum of the amplitudes of all the first-order and second-order intermodulation products, has been proposed in this work. The results confirm that the appearance of visible surface micro-cracks are preceded and accompanied by the observation of strong non-linear features in the received signal. Furthermore, the new parameter proposed in this work is as efficient as the relative non-linearity parameters, classically used in harmonic distortion non-linear ultrasonic studies, for detecting the non-linear features associated with the critical events of the cracking of cement mortar due to embedded steel corrosion. A hypothesis has been developed considering the possible effect of the filling of the void space by liquid containing rust products after the formation of new cracks or the enlargement of its width. This filling process, which might be particularly enhanced by net convective transport of liquid, would explain the evolution of the values of all the parameters used for putting in evidence the non-linear elastic features after the critical events of the cracking process.
Unifying yet dividing: voices of pussyhat maker–wearers who participated in the 2017 Women’s Marches
Authors: Malcom Nancy L. , Martindale Addie K. , Paulins V. Ann , Hillery Julie L. , Howell Alexandra 
Published: October 2020

AbstractOn January 21, 2017, several million protesters took part in the “Women’s March on Washington” and its more than 400 sister Marches held in cities throughout the U.S. and across the globe. One enduring image of these Marches was the (often pink) pussyhat. In this qualitative study we examine broader issues of inclusion and exclusion within craftivism and take a closer look at the way craftivism supported, and potentially detracted from, its intended purpose as a unifying symbol of the Marches. From a dataset of 511 surveys distributed and collected online, 71 “maker–wearers” were identified and investigated for this study. While our overarching question focused on the role of craftivism related to the inaugural March and the pussyhat, we seek to understand not only the voices of craftivists, but also the voices of marchers who reported negative and/or controversial associations with the pussyhat. Building on previous findings that the majority of marchers we surveyed perceive the pussyhat as an anti-Trump symbol that represented women’s power, strength, and solidarity, a small number of our respondents and emergent voices in mainstream media have indicated concerns about potential racism and trans person exclusion represented by the pussyhat. We conclude that even as the pussyhat is recognized as a unifying symbol, it is simultaneously representative of exclusionary, potentially divisive practices within both craftivism and feminism. As awareness of the pussyhat’s problematic symbolism is spreading, new conversations have spawned about intersectionality and the implementation of more inclusive practices.
Production losses five months after outbreak with a recombinant of two PRRSV vaccine strains in 13 Danish sow herds
Authors: Kristensen C. S. , Christiansen M. G. , Pedersen K. , Larsen L. E. 
Published: October 2020

AbstractBackgroundIn July 2019, a PRRSV-negative boar station was infected with a recombinant of two PRRSV vaccine strains, which subsequently spread to at least 36 herds that had received semen from the boar station. In the following months, all the infected herds reported reduced productivity. The aim of the present study was to evaluate the impact of the PRRS outbreak.ResultsProduction data were collected from 13 of the herds. The average levels of farrowings/week, liveborns/litter, stillborns/litter, pre-weaning mortality and weaned pigs/litter were compared for the five-month period after infection and the preceding 7 months before infection with the new variant of PRRSV-1. Twelve herds experienced a decrease in farrowings/week (0.1–10.8% fewer farrowings/week), and all herds experienced fewer liveborns (0.8–4.8 fewer liveborns/litter) and more stillborns (0.6–2.6 more stillborns/litter). Pre-weaning mortality nearly doubled in half of the herds. Overall, the 13 herds were missing 2.4–6.5 pigs/litter at weaning during the 5 months after infection compared to the seven preceding months before infection.ConclusionIn this study, the impact of this new PRRSV-1 variant on productivity exceeded that typically seen in Danish herds infected with PRRSV-1.
Determinant of emergency contraceptive practice among female university students in Ethiopia: systematic review and meta-analysis
Authors: Fikre Rekiku , Amare Belay , Tamiso Alemu , Alemayehu Akalewold 
Published: October 2020

Abstract
Introduction
Despite Ethiopia’s government’s commitment to alleviating unwanted pregnancy and unsafe abortion by increasing holistic reproductive health service accessibility, the rate of unwanted pregnancy among female students in the universities is distressing and becoming a multisectoral concern. Therefore, this systematic review aimed to assess the prevalence and determinant of emergency contraceptive practice among female university students in Ethiopia.

Result
The overall pooled prevalence of emergency contraceptive practice among female university students in Ethiopia was 34.5% [95% CI [20.8, 48.2%]. The pooled odds ratio showed that positive association between practice of emergency contraceptives with age of the students [OR, 0.19; 95% CI: 0.04, 0.98, P = 0.05] Previous contraceptive methods use [OR, 0.22; 95% CI: 0.12, 0.40, P = 0.0001], Marital status [OR, 0.09; 95% CI: 0.02, 0.40, P < 0.002] and knowledge [OR, 0.12; 95% CI: 0.04, 0.37, P < 0.0003].

Conclusion
The practice of emergency contraceptives among university female students was 34.5% and explained by knowledge, age, previous use of contraceptive methods and marital status.
Infiltration and Soil Water Distribution in Irrigation Furrows Treated with Polyacrylamide
Authors: Lentz Rick D. , Bautista Eduardo , Koehn Anita , Sojka Robert 
Published: October 2020

HighlightsControl furrows with 1× inflow rates were compared with 3× advance inflows treated with 10 mg L-1 polymer (WSPAM).WSPAM reduced sediment loads in furrow streams by 89%, despite its 3× greater advance inflows.WSPAM furrow advance times and infiltrated volumes were greater than predicted from increased inflows alone.WSPAM enabled reduced upper-section infiltration and increased lower-section infiltration relative to control furrows.Abstract. Few if any studies have measured the effects of water-soluble anionic polyacrylamide (WSPAM) on infiltration and soil water distribution in different segments of irrigation furrows. We conducted a four-year study on a silt loam soil with 1.5% slopes. Control furrows received no WSPAM and inflows were 15.1 L min-1, whereas WSPAM was applied using 10 mg L-1 a.i. to 45 L min-1 inflows during furrow advance. Despite its greater advance phase inflow rates, WSPAM application reduced sediment concentrations in furrow streams by an average of 89% relative to the control. A surface irrigation model, WinSRFR 5.1, was used to separate furrow inflow rate effects on infiltration from that of WSPAM. Relative to results predicted by simulation for the entire furrow, the polymer treatment: (1) increased advance time an average 1.4-fold, (2) increased advance-phase infiltrated volume 1.5-fold, and (3) increased infiltration volume at the common opportunity time 1.2-fold. Hence, these effects resulted from WSPAM and not from differences in treatment inflow rates. Treatment infiltration amounts varied markedly among irrigations and years, as did the intensity of WSPAM effects. These were attributed mainly to differences in infiltration opportunity time, but temporal differences in soil water content during furrow formation, irrigation water electrical conductivity, initial soil surface water content and water temperature, and the irrigation-long, furrow-stream mean sediment content also appear to have influenced infiltration rates. Although inconsistent, WSPAM increased net furrow infiltration in the lower section and reduced infiltration in the upper section relative to control furrows. This effect could not be explained by the greater inflow rate and shorter advance time of the WSPAM treatments and was attributed to spatially variable WSPAM effects on infiltration opportunity time and possibly irrigation water viscosity. The WSPAM management approach, while protecting against furrow erosion, may potentially provide a means of improving irrigation uniformity and reducing associated percolation water and nutrient losses. Keywords: Furrow advance, Irrigation, Irrigation uniformity, Polymers.
Una semana sin smartphone: usos, abuso y dependencia del teléfono móvil en jóvenes
Authors: González-Cortés Eugenia , Córdoba-Cabús Alba , Gómez Marisol 
Published: October 2020

INTRODUCCIÓN. El 98% de la población española posee un teléfono móvil, siendo los jóvenes los que mejor se desenvuelven en este entorno. La tecnología ha transformado sus comunicaciones y las redes sociales son su canal preferente de información. La presente investigación examina: a) la percepción que los jóvenes tienen de su uso del teléfono móvil, b) el consumo que realizan del smartphone y c) su grado de dependencia del móvil a partir de una experiencia de desconexión digital. MÉTODO. El método planteado consta de técnicas cuantitativas y cualitativas. Primero se diseñó y aplicó un cuestionario para analizar la percepción que los jóvenes tienen de su empleo del teléfono móvil. El cuestionario se distribuyó entre jóvenes andaluces de 15 a 24 años (n=1068). De acuerdo con los resultados obtenidos, se procedió a la realización de un experimento de campo y un grupo de discusión para comprobar la dependencia real del dispositivo. En él participaron once estudiantes de la Universidad de Málaga, cuyos teléfonos móviles fueron monitorizados durante tres semanas. La desconexión durante una semana permitió observar las consecuencias sociales, informacionales y emocionales que provoca en este segmento poblacional una dieta digital de estas características. RESULTADOS. Los resultados evidencian que los jóvenes no pueden vivir sin su teléfono, y ponen de manifiesto cómo hacen un uso intensivo (4h/día) e irrefrenable del smartphone, principalmente para el seguimiento de redes sociales. Durante la desconexión, se han detectado sensaciones encontradas que irían desde la incomodidad, la desinformación y la dependencia hasta la liberación. DISCUSIÓN. Se concluye que tras la semana de privación los estudiantes, aun reconociendo el dominio que el móvil ejerce en su vida y la libertadque experimentaron de las aplicaciones, se sienten incapaces de controlar y rebajar de manera voluntaria su tiempo de consumo.
Infectivity and viability of dengue virus infected hepatocytes cocultured with peripheral blood mononuclear cells from a healthy subject
Authors: Tresnaningtyas Sekar Asri , Sjatha Fithriyah , Dewi Beti Ernawati 
Published: October 2020

BACKGROUND Dengue virus (DENV) can infect and replicate in monocytes, resulting in antibody-dependent enhancement. The liver is the main target of DENV, and the infection mechanisms of DENV include direct cytopathic effects (CPEs) of the virus, mitochondrial dysfunction, and effect of cellular and humoral immune factors in the liver. This study was aimed to explore the infectivity of DENV and viability of human hepatocytes using Huh 7it-1 cells cocultured with peripheral blood mononuclear cells (PBMCs).
METHODS Huh 7it-1 cells were infected with dengue virus serotype-2 (DENV-2) New Guinea C strain at multiplicity of infection of 0.5 and 1 FFU/cell, and cocultured in vitro with and without adherent PBMCs. The infectivity of DENV was assessed by immunoperoxidase staining. The viability of Huh 7it-1 cells was assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT, a tetrazole) assay and trypan blue staining. Data were statistically analyzed by ShapiroWilk and analysis of variance for normality significances.
RESULTS The result showed that addition of PBMCs to DENV-2 infected Huh 7it-1 cells decreased the infectivity of DENV (1537%). DENV-2 infection decreased the viability of Huh 7it-1 cells (15.520.8%). Despite the decrease in infectivity of DENV, the addition of PBMCs increased the Huh 7it-1 cells viability (4.510.2%).
CONCLUSIONS Addition of PBMCs to Huh 7it-1 cells that are infected with DENV-2 decreased the infectivity of DENV and increased Huh 7it-1 cells viability.
Investigation of a highly compact intracavity actively Q-switched cascade diamond Raman laser
Authors: Yang Haolin , Chen Yue , Ding Kaili , Jia Fuqiang , Li Kang , Copner Nigel , Davies Antony 
Published: October 2020

A laser diode (LD) pumped intracavity chemical vapor deposition (CVD) diamond cascade Raman laser is reported here. By rotating a Brewster plate (BP) in the laser resonator, the Raman laser with tunable output coupling rate is achieved. The highly compact diamond laser emitted 1240 nm and 1485 nm Stokes light simultaneously via optimization of the pumping direction. The slope efficiency of the intracavity diamond laser is improved by optimizing the output coupling rate and adjusting the repetition rate of the 1064 nm fundamental laser. Ultimately, the maximum slope efficiency of the first Stokes light (1240 nm) is 16.8%, and the corresponding output power is about 0.6 W. The maximum peak power is 2.5 kW when the power of 808 nm LD is 34.7 W.
Sub-40  fs pulses at 1.8  µm and MHz repetition rates by chirp-assisted Raman scattering in hydrogen-filled hollow-core fiber
Authors: Loranger Sébastien , Russell Philip St. J. , Novoa David 
Published: October 2020

The possibility to perform time-resolved spectroscopic studies in the molecular fingerprinting region or extending the cutoff wavelength of high-harmonic generation has recently boosted the development of efficient mid-infrared (mid-IR) ultrafast lasers. In particular, fiber lasers based on active media such as thulium or holmium are a very active area of research since they are robust, compact, and can operate at high repetition rates. These systems, however, are still complex, are unable to deliver pulses shorter than 100 fs, and are not yet as mature as their near-infrared counterparts. Here, we report the generation of sub-40 fs pulses at 1.8 µm, with quantum efficiencies of 50% and without the need for post-compression, in hydrogen-filled, hollow-core photonic crystal fiber pumped by a commercial high-repetition-rate 300 fs fiber laser at 1030 nm. This is achieved by pressure-tuning the dispersion and avoiding Raman gain suppression by adjusting the chirp of the pump pulses and the proportion of higher-order modes launched into the fiber. The system is optimized using a physical model that incorporates the main linear and nonlinear contributions to the optical response. The approach is average power-scalable, permits adjustment of the pulse shape, and can potentially allow access to much longer wavelengths.
CURRICULUM AND IDENTITY ITS IMPACTS ON THE SCHOOL CONTEXT IN GOIÁS: POINTS AND COUNTERPOINTS
Authors: Purificação Marcelo Máximo , Catarino Elisângela Maura , Teixeira Maria Filomena Rodrigues , Santana Lousana de Jesus , Abdalla Cláudia de Souza , Alves Angélica Ferreira 
Published: October 2020

Abstract: One of the biggest challenges of contemporary education is to work with diversity, and identity plurality in school spaces, spaces in which relationships are often marked by tensions, conflicts, due to the asymmetries of power that permeate them and cause the construction of hierarchy, processes of subordination, (re) affirm prejudices, discrimination and violence in relation to certain social actors. It is a text of bibliographic review, in a qualitative approach, approaching the theoretical aspect of Cultural Studies. Keywords: Culture. Curriculum. Differences. Cultural Studies
Between Aura and Access: Artefactuality, Institutionality, and the Allure of the Archival
Authors: Sommer Tim 
Published: October 2020

AbstractThis article analyses narratives inspired by the institutional emergence of the literary archive. It focuses in particular on what historian Arlette Farge has described as the “allure of the archives”: the elusive immediacy of encounters with artefactual remnants of the past. Key to this experience is what has often been described as the ability of archival objects to conjure up the presence of their creators – a process that at the same time paradoxically depends on the uniqueness and fundamental ‘unapproachability’ of the artefact. Through regulating and restricting access to documents, the archive thus maintains their distance and simultaneously makes them available for acts of reverential consumption. Focusing on such forms of gatekeeping and consecration, the article reads Henry James’s novella “The Aspern Papers” (1888) and Martha Cooley’s novelThe Archivist(1998) to enquire how the literary archive – both as an idea and as an institution – has shaped ways of thinking about the relationship between physical absence and auratic presence.
Words, Wares, Names: Dave the Potter as American Archive
Authors: Chaney Michael A. 
Published: October 2020

Abstract
This article introduces readers to the enslaved African American crafter, David Drake, otherwise known as “Dave the Potter”, who incised poetry, signatures, dates, and sayings onto the stoneware ceramic jugs and plantation storage pots he made (from the 1830 s to the 1860s). In view of the concept of an archive, Dave the Potter’s works are significant as they are made up of writing and plastic arts, words and material. They not only record what has been thought through writing, they also perform through material languages of handles, spouts, bases, rims, etc. disruptions of the conventional functioning of the archive. If, as Derrida and others have argued, an archive confuses the content of cultural artefacts with the invested right of those housing an archive to interpret its content, then Dave the Potter’s incised jars perform this contradiction on their very surfaces, in their very design and construction, showing how the place or site of memory is also a house of hidden hermeneutic rights to remember.
From Parchment to Podcast: The Collaborative Process of Building and Unlocking an Archive
Authors: Oertel Kristen T. , Harvey Renee , Folsom Diana 
Published: October 2020

AbstractThis project began with a deceptively simple question: “Were there runaway slaves in Indian Territory in the 1830 s and 40s?” The answer was complicated and relied upon the combined expertise of historians, archivists, curators, and collectors. This article describes how collaborative research, performed at the Helmerich Center for American Research at the Gilcrease Museum in Tulsa, Oklahoma, uncovered a long-neglected piece of history in Indian Territory. The collections, which contain diverse sources such as manuscripts written on parchment, archaeological artefacts, original art, and more recently, digitised documents, images, and videos, shape the way scholars answer their questions. Although scholarly research may appear to be an independent endeavour – the professor mining sources at a desk or writing alone on a computer – the reality, especially in the twenty-first century, is much different. What shows up on the page and, now, what results in a podcast, is rooted in a shared journey, beginning with an archivist or curator collecting and cataloguing materials and ending in cyberspace.
Atomic 2D electric field imaging of a Yagi–Uda antenna near-field using a portable Rydberg-atom probe and measurement instrument
Authors: Cardman Ryan , Gonçalves Luís F. , Sapiro Rachel E. , Raithel Georg , Anderson David A. 
Published: October 2020

AbstractWe present electric field measurements and imaging of a Yagi–Uda antenna near-field using a Rydberg atom–based radio frequency electric field measurement instrument. The instrument uses electromagnetically induced transparency with Rydberg states of cesium atoms in a room-temperature vapor and off-resonant RF-field–induced Rydberg-level shifts for optical SI-traceable measurements of RF electric fields over a wide amplitude and frequency range. The electric field along the antenna boresight is measured using the atomic probe at a spatial resolution ofλRF/2${\lambda }_{RF}/2$with electric field measurement uncertainties below 5.5%, an improvement to RF measurement uncertainties provided by existing antenna standards.