bluuebunny/crossref_metadata_2025_split huggingface dataset:
Construcción de una máquina trituradora de plástico
Authors: Angaspilco Saez , Jauregui Milton , Sosa Macuyama Jorge , Yepez Ventura , Prado Ricardo 
Published: June 2019

En este trabajo se presenta el diseño e implementación de un prototipo de máquina trituradora de plástico PET (Tereftalato de polietileno), como una alternativa de solución tecnológica al gran problema de la contaminación ambiental por el excesivo consumo de materiales poco degradables como es el plástico.
Este proyecto se enmarca en una solución de innovación tecnológica local dado que en la región La Libertad-Perú a pesar del alto consumo de materiales plásticos no existe una estrategia formal de reciclaje o eliminación de este tipo de desechos ni tampoco desarrollos tecnológicos para ese fin. Por lo que la propuesta que se implementa en este trabajo tiene un aporte de innovación tecnológica para el reciclaje de plásticos y así contribuir en la transformación o eliminación de residuos plásticos.
Por otro lado, los plásticos tipo PET son fácilmente triturables a dimensiones minúsculas para posteriormente ser utilizados en diferentes procesos que determinan productos útiles al hombre o con menos efectos negativos al medio ambiente. Y en ese sentido, el trabajo presentado aquí desarrolla un prototipo de máquina trituradora cuyas partes y componentes son de fácil construcción o adquiribles en el entorno local.
La máquina trituradora de Plástico desarrollado aquí se compone de 3 partes fundamentales: (1) Sistema eléctrico con lógica de mando y arranque directo de un motor trifásico. (2) estructura mecánica o cuerpo del equipo, que permite sostener o soportar a las diferentes partes de la máquina. (3) sistema de trituración, que convierte el plástico reciclado en pequeñas virutas, las que son luego almacenadas en un deposito que es parte de la maquina desarrollada.
Los conocimientos adquiridos en el curso de electromagnetismo, de la carrera Ing. Mecánica-eléctrica permiten realizar el diseño y construcción de una máquina trituradora de residuos plásticos que garantice su funcionamiento adecuado, facilidad de operación, seguridad laboral y una adecuada selección de los diferentes elementos y materiales requeridos para la implementación del equipo.
Palabras clave: Plástico, Máquina Trituradora, Trifásico, Sistema eléctrico.
Trust in Participatory Action Community Engaged Partnerships: Relationships and Historic Trauma Matter
Authors: Pierce Barbara , Klemme Paige , Tate Val , Studley Mary 
Published: June 2019

University-community participatory action partnerships can be mutually beneficial. Universities often work alongside communities to establish new and innovative community-based programming and research that are intended to benefit communities from these efforts. However, mistrust has been found to be a major issue in creating and maintaining strong relationships. This paper will marry a model of trust that forms when partners exhibit relational capital, relational embeddedness, and transparency within the principles of trauma-informed care as established by the Substance Abuse Mental Health Services Administration (SAMHSA) (2014).
A group of university researchers and community activists/organizers analyzed their work on a project to bring a community engaged participatory action design team intervention to develop and implement trauma-responsive care in an established transitional African American community located in a large urban Midwestern city. Through our analysis we identified three major reasons for mistrust: objectification of community members, lack of real change in the community, and lack of transparency.. Additionally, we found that paying attention to power differentials between the university researchers and community partners is key. Major findings around best practices mirrored the SAMHSA trauma-informed care principles and included developing “not just trust but trusting relationships”, sharing “voice and choice” with all who seek to participate, understanding the historical trauma within the community, using cultural guides and long time seasoned community organizers to facilitate processes, “showing up” and being interested in the community beyond the research or intervention by finding a way to give back to the community beyond the project.
Artful Spaces/Safe Places: A Gallery Provokes Voices that Interrogate Common Narratives of Latino Immigrant Children
Authors: Borgmann Cindy Bixler , Peñalva Stacy 
Published: June 2019

What do Latino immigrant children’s voices say as they are provided a safe community space to be heard and soft clay through which to speak? Through art work, focus groups, gallery exhibitions, and filtering data (Author, 2018) this critical ethnographic research (Madison, 2012; Merriam & Tissdell, 2016; Wolcott, 2008; Thomas, 1993) exposes the complex political nature of linguistic, cultural, and national negotiations in which Latino children and their families in this study engage daily. This work troubles stereotypic mainstream narratives (Dillard, 2012; hooks, 1990, 1994; Janks, 2010) and points out the need for strong community/university collaborations to impact the excavation of deeper understandings of people in our neighborhoods. This ethnographic portrait of families, part of a larger study, involved the community director in an urban Spanish speaking church and faculty from literacy education and visual art at IUPUI. In this study children created clay objects called “hanging journals” during a summer program. These clay artworks acted as semiotic mediators (Kress, 2010; Pahl & Rowsell, 2012) for voices of this group—voices which routinely go unheard, or are devalued. Using theoretical frameworks from the fields of literacy and art, layered with multiplex ethnographic research tools, the volume on these important and complicated voices was turned up to hear buried stories and to interrogate commonly accepted narratives that swirl around Latino immigrants and their families.
This study provides a peek into the authentic narratives of children as they share the daily navigation of a transnational existence, and shows the power of the arts to communicate across contested spaces. This study embraces the necessity of authentic university/community collaborations as a two-way street to understand and empower Latino youth, to better prepare future teachers as agents of change, and to expose versions of immigrant ways of being and knowing that are misconstrued.
The role of hemodynamic limitations in the reduction of exercise capacity in patients with sarcoidosis
Authors: Gudim A. L. , Postnikova L. B. , Boldina M. V. , Bychkova E. V. 
Published: June 2019

Aim: To perform comprehensive evaluation of the Cardiopulmonary Exercise Testing (CPET) parameters with gas analysis in patients with pulmonary sarcoidosis (PS) and to assess the effects of hemodynamic limitations on the reduction of exercise capacity (EC).Materials and methods: We examined 42 PS patients (25 men, 17 women) aged from 22 to 62 years (34.5 [29; 41.5] years old). PS had been verified histologically in 33 (78.6%) patients. The group 1 included patients with decreased oxygen consumption per minute at the peak load (n = 20) with VO₂ peak pred ≤ 84%, i.e. with decreased EC. Group 2 consisted of 22 patients with normal VO₂ peak pred (> 84%). In all patients, echocardiographic and CPET parameters were assessed that characterize response of the cardiovascular system to physical exercise, such as oxygen consumption at the anaerobic threshold (VO₂ AT, % of predicted value); oxygen pulse (VO₂/HR, abs/% of predicted), the chronotropic-metabolic index (CMI), and blood pressure.Results: Thickening of the left ventricular posterior wall (p = 0.012) was found in the group 1, together with decreased VO₂ AT (р < 0.001), VО₂/HR (р < 0.001), and systolic blood pressure (p = 0.037) at the peak load during CPET, compared to the parameters in the group 2. Twelve patients from the group 1 demonstrated their VO₂ AT < 43%, 6 patients had decreased VО₂/HR < 80% of predicted, and 3 patients were diagnosed with the chronotropic incompetence phenomenon.Conclusion: Decreased EC was identified by CPET in 47.6% of PS patients without any functional abnormalities at rest. The reduction of EC in 17/20 PS patients from the group 1 was associated with abnormalities in CPET parameters, corresponding to the hemodynamic limitations (reduction of cardiac output and chronotropic incompetence).
Thermal and Aerodynamic Researches of Staggered Bundles for Choice of an Effective Spacing of Round-Finned Tubes
Authors: Kuntysh V. B. , Sukhotskii A. B. , Marshalova G. S. , Dudarev V. V. , Farafontov V. N. 
Published: June 2019

The results of an experimental study of local modeling of convective heat transfer and aerodynamic resistance of staggered six-row bundles of bimetallic tubes with spiral knurled aluminum fins under transverse air flow in the range of its velocity alteration in a compressed bundle section of 1.9−11.0 m/s are presented. The velocity range covers the possible modes of operation of industrial air coolers (AVO). The fins with a diameter of approximately 57 mm are rolled on a steel supporting tube with an outer diameter of 25 mm. Tube finning ratio j = 19.26. Such tubes are widely used in the heat exchange sections of AVO of natural gas, in particular, at “Gribanovskii Engineering Plant” JSC (Russia). To measure the reduced heat transfer coefficients, an electric calorimeter had been developed by the authors with a power input of 600−1300 W. The temperature of the wall surface at the base of the fins did not exceed the range of 77–92 °C. The transverse tube spacing in bundles S1was 64.0 or 68.0 mm, while the longitudinal spacing S2 was 54.4 or 50.0 mm. The heat transfer of each transverse row of six-row bundles was measured, as well as the average heat transfer and aerodynamic drag, which are summarized by the similarity equation of a power type. The heat transfer rate of the last transverse row in the direction of air movement is 0–5 % lower than the heat transfer rate of the stabilized rows, and here new features of heat transfer variations in the insufficiently studied area of spacing changes S1 and S2 have been found. The thermal contact resistance (TCR) was measured in the range of the average temperature of the contact surfaces tк = (79–95) оС, and no dependence of the value of TCR on tк for the specified interval was found. The numerical average value of TCR was Rк = 2,13 × 10–4 m2×K/W, which is typical for reliable mechanical connection of the finned aluminum shell with the supporting steel tube made of carbon steel. The results of variant thermal and aerodynamic calculations with the use of the obtained data established the technical and economic feasibility of placing tubes at the vertices of an isosceles triangle with spacing S1 = 68–69 mm and S2 = 55 mm with failure to use the location of the tubes along an equilateral triangle with S1 = S2' = 64 mm (where S2' – is diagonal spacing). With Q = idem and other conditions being equal, the number of tubes on AVO decreases by 5.7 % with a decrease in power consumption to 4.0 %.
Body Image after Breast Cancer Questionnaire: psychometric properties of the Persian version
Authors: Firouzbakht Mojgan , Rekabpour Seyed- Javad , Nabavian Majedeh , Nikpour Maryam , Nia Hamid Sharif 
Published: June 2019

Abstract
Background: Assessing body image among breast cancer survivors is essential to the development of good treatment and rehabilitation plans. Culturally-appropriate methods and instruments are needed for body image assessment. The aim of this study was to assess the psychometric properties of the Persian version of Body Image after Breast Cancer Questionnaire.
Methods: In this methodological study, the Body Image after Breast Cancer Questionnaire was translated into Persian through forward-backward translation. Then, its content validity was assessed by twelve experts, and 400 women with breast cancer completed the questionnaire. The construct validity of the questionnaire was evaluated through exploratory and confirmatory factor analyses and its convergent and discriminant validity were evaluated using Fornell and Larcker’s approach. The reliability of the questionnaire was also evaluated through Cronbach’s alpha, McDonald’s omega, and composite reliability.
Results: In exploratory factor analysis, five factors were extracted, namely vulnerability, body stigma, body-related shame, body satisfaction, and physical disability stigma. Confirmatory factor analysis also confirmed the fit of the five-factor model (χ2 = 466.95; N = 241; P < 0.001; PCFI = 0.728; PNFI = 0.624; CMIN/DF = 1.938; RMSEA = 0.068; AGFI = 0.808; IFI = 0.838). Second-order factor analysis also revealed that the subscales of the questionnaire measured an overarching concept which was labeled “Body image stigma”. The questionnaire had acceptable content and convergent validity and composite reliability.
Conclusion: The Persian version of Body Image after Breast Cancer Questionnaire measures the broad concept of “Body image stigma”. The Persian BIBCQ has acceptable validity and reliability and hence, can be used for assessing body image among breast cancer survivors.

Keyword: Body image, Breast cancer, Psychometric evaluation, Validity, Reliability
Transcriptome sequencing of a keystone aquatic herbivore yields insights on the temperature-dependent metabolism of essential lipids
Authors: Windisch Heidrun Sigrid , Fink Patrick 
Published: June 2019

Abstract
Background:
Phytoplankton dietary quality is the major determinant of the trophic transfer efficiency at the plant-herbivore interface in freshwater food webs. In particular, the phytoplankton’s content of the essential polyunsaturated omega-3 fatty acid eicosapentaenoic acid (EPA) has repeatedly been shown to determine the secondary production in the major zooplankton herbivore genus Daphnia. Despite extensive research efforts on the biological model organism Daphnia and the availability of several Daphnia genomes, little is known on the molecular mechanisms underlying the limitation of Daphnia by dietary EPA availability.
Results:
Here, we used RNAseq to analyse the transcriptomic response of Daphnia magna fed with diets with or without EPA to specifically analyse gene-networks and pathways that are driven by dietary EPA availability. Since EPA is – among other functions – critical to the adaptation of poikilothermic organisms to low environmental temperatures, we ran our experiment at two temperature levels to investigate potentially constrained physiological responses to EPA availability at lower temperatures. Here, trade-offs between food quality and homeoviscous adjustments of biological membranes are expected through the incorporation of polyunsaturated fatty acids.
Conclusions:
Our highly controlled eco-physiological experiments revealed an orchestrated response of genes involved in transformation and signalling of the essential fatty acid, including eicosanoid-signalling pathways with potential immune functions. We provide an overview of downstream-regulated genes, which contribute to enhance growth and reproductive output. We also identified numerous EPA-responsive candidate genes of yet unknown function, which constitute new targets for future studies on the molecular basis of EPA-dependent effects at the freshwater plant-herbivore interface.
Association between NMD3 and symptoms of Parkinson’s disease in Chinese
Authors: Wu Hui , Li Hui , Shi Zhiqiang , Tang Jiajia , Mei Shuya , Ai Tianyi , He Zhenzhou 
Published: June 2019

Abstract
Bcakground

Parkinson's disease (PD) is a progressive degenerative disorder of the basal ganglia that not only affects the initiation and execution of voluntary movements, but also nonmotor features. The aim was to investigate the association between NMD3 and symptoms of PD patients in Chinese.

Methods

217 PD patients were recruited in this study. All patients were evaluated by Sniffin’ Sticks 16 (SS-16), Hamilton anxiety rating scale and Hamilton depression rating scale, 39-item Parkinson's disease Questionnaire (PDQ-39) and MDS - Unified PD Rating Scale (MDS-UPDRS). Symptoms were also recorded.

Results

NMD3 carriers had worse cognitive function (MMSE: p 0.042, NMD3 wildtype: 27.44 ± 2.89, NMD3 carriers: 26.31 ± 3.79; MoCA: p 0.005, NMD3 wildtype: 23.15 ± 4.20, NMD3 carriers: 20.75 ± 6.68).

Conclusions

The recessive and overdominant model of GALC rs8001572 was associated with the presence of sensitive to light.
Intraoperative navigation system for ventriculoperitoneal shunting improves outcomes in patients with hydrocephalus compared with conventional procedures via the occipital horn
Authors: Peng Aijun , Zhao Hai , Wu Yongkang , Zhao Yi , Zhou Liangxue 
Published: June 2019

Abstract
Background: Ventriculoperitoneal shunting (VPS) is a common neurosurgical procedure for treating hydrocephalus. Catheter obstruction is one of the most common factors influencing patient prognosis. We evaluated the possibility of improving the accuracy of proximal catheter placement and the probable relationship of ventricular catheter obstruction with the symptom grade and postoperative Evans index with intraoperative navigation for VPS compared with conventional surgery via the occipital horn.
Method: We performed a retrospective study including 33 patients with VPS in the navigation surgery group and 26 patients with VPS in the conventional surgery group between January 2012 and August 2018. The clinical data, follow-up time, catheterization accuracy, postoperative outcomes, cumulative survival time and correlations of catheter placement with obstruction and of catheter obstruction with the symptom grade and postoperative Evans index were analyzed.
Results: Thirty-one patients experienced optimal ventricular catheter placement (grade 1), 2 patients experienced suboptimal placement (grade 2), and no patients experienced poor ventricular catheter placement (grade 3) in the navigation surgery group compared with 6, 14, and 6 patients, respectively, in the conventional surgery group. Greater improvement in postoperative symptoms (P=0.017) was observed in the navigation surgery group, including less catheter readjustment (P<0.001). Kaplan-Meier survival analysis showed that the cumulative catheter obstruction-free survival time was longer in the navigation surgery group than in the conventional surgery group (P=0.028). Catheter placement was significantly correlated with catheter obstruction (P<0.001). In addition, catheter obstruction was significantly correlated with the symptom grade (P=0.001) and postoperative Evans index (P<0.001).
Conclusions: The intraoperative navigation system for VPS improved patient outcomes and the accuracy of ventricular catheter placement. Catheter obstruction-free survival time was longer in the navigation surgery group, and catheter placement was significantly correlated with catheter obstruction.
Amniotic membrane transplantation in a patient with an impending perforated corneal ulcer caused by Streptococcus mitis: a case report
Authors: Hsiao Fang-Chi , Meir Yaa-Jyuhn James , Yeh Lung-Kun , Tan Hsin-Yuan , Hsiao Ching-Hsi , Ma Hui-Kang David , Wu Wei-Chi , Chen Hung-Chi 
Published: June 2019

Abstract
Background: Streptococcus mitis (S. mitis) belongs to the viridans group streptococci, which is rarely isolated as a causative pathogen of corneal ulcers. When S. mitis causes keratitis, penetrating keratoplasty (PK) might be necessary. Herein, we demonstrated that amniotic membrane transplantation (AMT) may be an easier procedure with acceptable outcomes and with fewer complications.

Case presentation: A 63-year-old female presented with a right persistent corneal ulcer that she had suffered from for the past nine months. The culture of a corneal scraping yielded S. mitis. The right eye descemetocele decreased from 3 mm in diameter to 0.8 mm in diameter after the continuous administration of topical vancomycin and ceftriaxone for two weeks. Due to the slow healing, AMT was performed. Her corneal erosion healed and gradually became clear. Her visual acuity recovered from initially counting fingers to 20/200 17 months after AMT.

Conclusion: This unusual case illustrated that antibiotics plus AMT may be an effective alternative treatment instead of PK to promote epithelialization and to reduce inflammation in corneas complicated by S. mitis keratitis.
Comparative Chloroplast genomes of Gynura species:Sequence Variation, Genome Rearrangement and Divergence studies
Authors: Han Tianyu , Li Mimi , Li Jiawei , Lv Han , Ren Bingru , Chen Jian , Li Weilin 
Published: June 2019

Abstract
Background

Some Gynura species were reported to be natural anti-diabetic plants. The chloroplast genomes of four Gynura species were sequenced for hybridizations to improve agronomic traits. There are only 4 genera of tribe Senecioneae have published chloroplast genome in Genbank up to now. The internal relationships of the genus Gynura and the relationship of the genus Gynura with other genera in tribe Senecioneae need further researches.

Results

The chloroplast genome of 4 Gynura species were sequenced, assembled and annotated. Comparing with other 12 Senecioneae species, the chloroplast genome features were detailedly analyzed. Subsequently, the differences of the microsatellites and repeats type in the tribe were found. By comparison, the IR expansion and contraction is conserved in the genera Gynura, Dendrosenecio and Ligularia. The region from 25,000 to 50,000 bp is relatively not conservative but the 7 ndh genes in this region are under purifying selection with small change in amino acids. The phylogenetic tree shows two major clades, same as the sequence divergence in region 25,000 to 50,000 bp. Based on the oldest Artemisia pollen fossil, the divergence time were estimated.

Conclusions

Sequencing of chloroplast genome of the 4 Gynura species help us to develop abundant genetic resources. The phylogenetic relationships and divergence time among 4 Gynura and 16 Senecioneae species were sorted out by comparing the chloroplast genomes. The phylogenetic relationship of the genera Gynura and Ligularia is different with former work and further morphology and genome-wide analysis are needed to clarify the genera relationship.
The Possibility of Social Change and Pop Music in Serbia: Šobaja’s Three Kisses – A Case Study
Authors: Brkić Aleksandar 
Published: June 2019

Can social change be brought about only in a radical manner? Is a radical manner of bringing about change possible at all? When we say social change, do we mean "revolution"? Is there a different way of looking at social change, and what is the role of elite culture and that of popular culture in these processes? Has the temporally and contextually limited effect of change and guerilla subversion through popular culture proved more effective? This small-scale study aims to raise the question of whether pop music can contribute to positive changes in society, and examines the conditions for this possibility through the case study of Nebojša "Šobaja" Anđelković’s song Three Kisses, declared the biggest music hit of 2009 in Serbia.