bluuebunny/crossref_metadata_2025_split huggingface dataset:
A freegan pop-up café: Embedding critical hospitalities into the curriculum
Authors: Obrador Pau 
Published: January 2020

AbstractThis article suggests the importance of opening tourism and hospitality management education to critical perspectives and practices. Critical developments on hospitality have had a limited impact on higher education curricula, which retain a strong vocational orientation. This article presents a student-led pedagogical innovation that enacts hospitality as a critical tool. The activity involved the organization of a pop-up café using freegan principles. Surplus food was transformed into nutritious meals that were distributed on campus on a pay-as-you-feel basis. The innovation drew on Tribe's philosophical practitioner, which vindicates the practical value of adding critical reflection to vocational courses. This article reflects on the pedagogical value of embedding critical hospitalities into vocational curricula. The experience raised relevant questions on the interplay of hospitality and criticality, the ethical values of tourism education and the educational needs of tourism management students more generally.
Gastric Leiomyosarcoma Unmasked by Bleeding From a Percutaneous Endoscopic Gastrostomy Tube
Authors: Gubatan John , Shah Nimeesh 
Published: January 2020

ABSTRACT
Gastrointestinal bleeding from percutaneous endoscopic gastrostomy tubes and malignancy are uncommon. Gastric leiomyosarcomas are rare and differentiated from other gastric tumors with histology and immunohistochemical staining. We present a case of upper gastrointestinal bleeding from a percutaneous endoscopic gastrostomy tube manifesting as a gastric leiomyosarcoma in a 50-year-old man with a medical history of Wilms tumor. We reviewed the epidemiology, diagnosis, and management of gastric leiomyosarcomas. We also explored the risk factors and potential mechanisms in the pathogenesis of gastric leiomyosarcoma in our patient.
Corrosion behavior of titanium alloys in acidic and saline media: role of alloy design, passivation integrity, and electrolyte modification
Authors: Bodunrin Michael O. , Chown Lesley H. , van der Merwe Josias W. , Alaneme Kenneth K. , Oganbule Christian , Klenam Desmond E.P. , Mphasha Nthape P. 
Published: January 2020

AbstractThis paper presents an overview of the corrosion behavior of titanium (Ti) alloys in both acidic and saline solutions. The solutions covered in this review are essentially the typical electrolytes encountered by Ti alloys when applied under service conditions. Although Ti alloys are generally known to be corrosion resistant, this review identifies strong reducing acids and fluoride-containing solutions as electrolytes that corrode Ti and its alloys. The pathways that the knowledge of the corrosion behavior of Ti alloys have followed from the 1950s to date are captured in this review. Based on this, the different factors influencing the corrosion behavior of Ti alloys are highlighted and the different research concepts for improving the corrosion resistance of Ti alloys in both solutions are discussed. The limitations of these research concepts are mentioned and the directions for future research are proposed.
Investigating of soil features and landslide risk in Western-Atakent (İstanbul) using resistivity, MASW, Microtremor and boreholes methods
Authors: Keskinsezer Ayhan , Dağ Ersin 
Published: January 2020

AbstractIn Western-Atakent (İstanbul), population density is increasing day by day and settlement areas are expanding. Soil properties and landslide conditions of these expanding regions must be absolutely examined. In the geophysics, there are many methods used to investigate landslide risks and geotechnical structure. The most common geophysical methods used for this purpose are the Electrical resistivity tomography (ERT), Multi-channel Analysis of Surface Waves (MASW) and Microtremor Survey Method (MSM) methods. These methods are very successful techniques for defining underground layers as geological structures, stratigraphic elements, soil layer thickness and landslide. Because of that reason in this study, soil properties and possibility of landslides of the Western-Atakent (İstanbul) region were investigated by using ERT, MASW, MSM and drilling methods. In this study the first stage, electrical resistivity data have been measured using dipole-dipole method on two profiles for ERT. In the second stage, MASW measurements have been made at 25 points on 5 seismic profiles in the field. In the third stage, MSM measurements have been made to determine the fundamental period in the 5-measure station in the study area. In the fourth and final stage, 10-pieces boreholes with a depth of 20 m were drilled to reveal the lithological structure of the study area. As a result of the evaluation of all data, parts of the region that could form landslides were revealed.
Elastic flow of networks: long-time existence result
Authors: Dall’Acqua Anna , Lin Chun-Chi , Pozzi Paola 
Published: January 2020

AbstractWe provide a long-time existence and sub-convergence result for the elastic flow of a three-network in ℝnunder some mild topological assumptions. The evolution is such that the sum of the elastic energies of the three curves plus their weighted lengths decrease in time. Natural boundary conditions are considered at the boundary of the curves and at the triple junction.
Naphthalene substituted benzo[c]coumarins: Synthesis, characterization and evaluation of antibacterial activity and cytotoxicity
Authors: Patel Mrugesh , Patel Kaushal 
Published: January 2020

AbstractNovel congeners of naphthalene substituted benzo[c]coumarins (2a-f) were synthesized by reaction of various 3-coumarinoyl methyl pyridinium bromide salts (1a-d) with a selected set of acetyl naphthalene in the presence of sodium acetate in refluxing glacial acetic acid. Structures of the synthesized compounds were confirmed by elemental analysis and by various spectroscopic techniques such as 1H-NMR, 13C-NMR, DEPT, and MS spectral data. Synthesised compounds were screened for antibacterial activity and cytotoxicity against different human cancer cell lines including cervix cancer (HeLa), breast cancer (MCF-7) and lung cancer (A549) using tetrazolium dye 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) cell viability assay. Although with varying degrees, a significant growth inhibitory and cytotoxic effects were observed on all three cancer cell lines. Compounds 2b and 2e showed significant growth inhibitory and cytotoxicity against aforementioned cancer cell lines.
JIB.tools 2.0 – A Bioinformatics Registry for Journal Published Tools with Interoperability to bio.tools
Authors: Friedrichs Marcel , Shoshi Alban , Chmura Piotr Jaroslaw , Ison Jon , Schwämmle Veit , Schreiber Falk , Hofestädt Ralf , Sommer Bjorn 
Published: January 2020

Abstract
JIB.tools 2.0 is a new approach to more closely embed the curation process in the publication process. This website hosts the tools, software applications, databases and workflow systems published in the Journal of Integrative Bioinformatics (JIB). As soon as a new tool-related publication is published in JIB, the tool is posted to JIB.tools and can afterwards be easily transferred to bio.tools, a large information repository of software tools, databases and services for bioinformatics and the life sciences. In this way, an easily-accessible list of tools is provided which were published in JIB a well as status information regarding the underlying service. With newer registries like bio.tools providing these information on a bigger scale, JIB.tools 2.0 closes the gap between journal publications and registry publication. (Reference: https://jib.tools).
Split Hausdorff internal topologies on posets
Authors: Luo Shuzhen , Xu Xiaoquan 
Published: January 2020

Abstract
In this paper, the concepts of weak quasi-hypercontinuous posets and weak generalized finitely regular relations are introduced. The main results are: (1) when a binary relation ρ : X ⇀ Y satisfies a certain condition, ρ is weak generalized finitely regular if and only if (φρ(X, Y), ⊆) is a weak quasi-hypercontinuous poset if and only if the interval topology on (φρ(X, Y), ⊆) is split T2; (2) the relation ≰ on a poset P is weak generalized finitely regular if and only if P is a weak quasi-hypercontinuous poset if and only if the interval topology on P is split T2.
Tailoring the spatial localization of bound state in the continuum in plasmonic-dielectric hybrid system
Authors: Xiang Jin , Xu Yi , Chen Jing-Dong , Lan Sheng 
Published: January 2020

Abstract
Bound states in the continuum (BIC) are considered as an effective means to dramatically elongate the trapping time of light. However, light-matter interaction depends not only on the life-time of an optical mode, but also on its mode volume. Therefore, increasing the life-time of an optical mode and minimizing the mode volume simultaneously, utilizing the BIC resembles a promising way for enhancing light-matter interaction. Herein, we have proposed a novel hybrid plasmonic-dielectric structure to manipulate the mode volume of BIC. For the Friedrich-Wintgen BIC, the electric field is strongly confined in the dielectric nanoparticle, leading to the considerable field enhancement compared with the single dielectric nanoparticle case. In contrast, strong localization of electric field can be achieved along the surface normal direction for the symmetry-protected BIC, leading to one order of magnitude reduction of mode volume in one unit cell compared with the conventional symmetry-protected BIC of all-dielectric structure. The proposed hybrid photonic system could provide an ideal flat platform for advanced manipulation of light-matter interaction.
Second harmonic imaging of plasmonic Pancharatnam-Berry phase metasurfaces coupled to monolayers of WS2
Authors: Spreyer Florian , Zhao Ruizhe , Huang Lingling , Zentgraf Thomas 
Published: January 2020

Abstract
The nonlinear processes of frequency conversion such as second harmonic generation (SHG) usually obey certain selection rules, resulting from the preservation of different kinds of physical quantities, e.g. the angular momentum. For the SHG created by a monolayer of transition-metal dichalcogenides (TMDCs) such as WS2, the valley-exciton locked selection rule predicts an SHG signal in the cross-polarization state. By combining plasmonic nanostructures with a monolayer of TMDC, a hybrid metasurface is realized, which affects this nonlinear process because of an additional polarization conversion process. Here, we observe that the plasmonic metasurface modifies the light-matter interaction with the TMDC, resulting in an SHG signal that is co-polarized with respect to the incident field, which is usually forbidden for the monolayers of TMDC. We fabricate such hybrid metasurfaces by placing plasmonic nanorods on top of a monolayer WS2 and study the valley-exciton locked SHG emission from such system for different parameters, such as wavelength and polarization. Furthermore, we show the potential of the hybrid metasurface for tailoring nonlinear processes by adding additional phase information to the SHG signal using the Pancharatnam-Berry phase effect. This allows direct tailoring of the SHG emission to the far-field.
Phase-coupled simultaneous coherent perfect absorption and controllable hot-electron photodetection in Schottky junction metamaterial
Authors: Bai Qiang 
Published: January 2020

Abstract
We report a new type of coherent perfect absorption that is determined by the phase coupling between metaatoms and is referred to as the phase-coupled simultaneous coherent perfect absorption (PC-SCPA) for antisymmetric and symmetric incidences and especially the PC-SCPA for antisymmetric and symmetric incidences can be simultaneously achieved in the same bi-layered Schottky junction metamaterial possessing the phase coupling. Our proposed mechanism exploits the phase coupling between metaatoms, which is in contrast with the existing mechanism which depends on the near-field coupling. The theory of PC-SCPA is provided using coupled mode theory with the phase coupling. The operating wavelengths of PC-SCPA are insensitive to the variations of the spacing distances between metaatoms in the lateral and vertical directions. An infrared PC-SCPA-based hot-electron photodetection with dynamically switchable operating wavelengths and dynamically tunable bandwidth is theoretically and numerically verified in the same bi-layered Schottky junction metamaterial. The peak of spectrum of responsivity for antisymmetric and symmetric incidences can be switched to the same wavelength only by altering the phase coupling. Our study may build the bridge among the new type of PC-SCPA, metamaterial, and hot electron and may find potential and significant applications in hot-electron photodetection.
Apolipoprotein E: Cholesterol metabolism and Alzheimer’s pathology
Authors: Pohlkamp Theresa 
Published: January 2020

Abstract
Age is the greatest risk factor for Alzheimer’s disease (AD). Today, due to an increase in global life expectancy, AD-related deaths are ranked as the sixth most common cause of death. The allele isoform ɛ4 of apolipoprotein E (ApoE4) is the most important genetic risk factor for AD. Three ApoE isoforms are common in humans: ApoE2, ApoE3, and ApoE4. ApoE3 is the most frequent isoform and considered neutral with regards to AD, whereas the isoform ApoE2 is protective. Thus it is important to understand how ApoE isoforms affect amyloid-β (Aβ) and tau toxicity, the key drivers of AD pathology. Aβ and tau accumulate to form the hallmarks of AD, plaques and neurofibrillary tangles, respectively. ApoE, primarily expressed by astrocytes, is the major lipid transporter in the brain. In this review I summarize some important historic and scientific aspects of our progress in understanding the role of the cholesterol transporter ApoE in the brain, and how the isoform ApoE4 contributes to AD pathology.
Approach, Avoidance, and the Perception of Credibility
Authors: Ask Karl , Calderon Sofia , Mac Giolla Erik , Reinhard Marc-André 
Published: January 2020

AbstractBased on a functional approach to credibility judgments, the authors hypothesize that receivers’ judgments of senders’ credibility involve an evaluative dimension (i.e., good–bad) and are associated with approach and avoidance tendencies. In three experiments (total N = 645), participants (receivers) judged the credibility of suspects (senders) denying involvement in a mock theft. While watching or reading the message, receivers performed an approach-related (arm flexion) or an avoidance-related (arm extension) motor action. Although receivers’ affective evaluations of senders (good–bad) correlated strongly with credibility judgments in all three experiments, the results of the arm position manipulation were mixed. In Experiment 1, receivers in an arm flexion (vs. arm extension) state judged the sender as more credible, but only when informed beforehand about the upcoming credibility judgment. In Experiment 2 and 3, however, there was no evidence of an arm position effect on credibility judgments. A cross-experimental meta-analysis revealed that the effect of the manipulation was statistically indistinguishable from zero, Hedges’ g = 0.07, 95% CI [−0.09, 0.22], and provided strong support for the null hypothesis. Multiple interpretations of the results are discussed.
Serum Homocysteine, cystatin C as Biomarkers for Progression of Diabetic Nephropathy
Authors: Xu Weihai , Tang Suhua , Xiang Meijuan , Peng Jianyun 
Published: January 2020

Abstract

Objective To investigate the clinical efficacy of serological level homocysteine (Hcy) and cystatin C (Cys-C) as biomarkers for progression of diabetic nephropathy (DN).

Methods Seventy-five patients with type 2 diabetes mellitus (DM) hospitalized in Lishui People’s Hospital from January 2015 to May 2018 were included in the present study. Of the 75 cases, 28 were simple DM, 25 were early stage DN (DNe) and other 22 subjects were clinical stage DN (DNc). The serum level of Hcy and Cys-C were detected and compared among the DM, DNe and DNc groups. The efficacy of serological levels of Hcy, and Cys-C as biomarkers for diagnosis of early stage diabetic nephropathy was calculated.

Results The serological levels of Hcy were 11.53±3.05 μmol/L, 15.39±4.58 μmol/L and 18.14±7.03 μmol/L for DM, DNe and DNc groups respectively (P<0.001). Serum level of Cys-C, were 0.89±0.23 mg/L, 1.51±0.60 mg/L and 2.63±0.90 mg/L respectively for DM, DNe and DNc groups respectively (P<0.001). Significant positive correlation between serum Cys-C and Hcy was detected in DNe (rpearson=0.55, P=0.004) and DNc (rpearson=0.44, P=0.04) groups. However, there was no significant correlation of serological Cys-C and Hcy in DM group (rpearson=0.08, P=0.70). The sensitivity and specificity in diagnosis of early stage DN were 76.0 (95%CI:54.87-90.64)%, 64.29 (544.07-81.36)% for serological Hcy and 80.0 (559.30-93.17)%, 89.29 (571.77-97.73)% for serum Cys-C respectively. The diagnostic area under the ROC curve (AUC) was 0.76 (0.63 to 0.90) and 0.84 (0.72-0.96) respectively for serum Hcy and Cys-C in detection early stage DN.

Conclusion: Serum levels of Hcy and Cys-C in diabetic nephropathy patients were elevated compared to that of simple DM cases, making them potential biomarkers for diagnosis of early DN from DM patients.
Structure Property Correlation of In Situ Reinforced Al–based Metal Matrix Composite via Stir Casting
Authors: Gupta Ashish Kumar , Mallik Banshidhar , Roy Debdas 
Published: January 2020

Abstract
Aluminum-based in situ nanocomposites are synthesized by stir casting route. The powder materials used to develop the in situ reinforcement were mechanically milled so as to reduce the powder size in the nanoregime. The as-fabricated nanocomposite aluminum base 20 vol% (Al203 + Fe-aluminide) in situ reinforcement is characterized through X-ray diffraction, field emission scanning electron microscopy (FE-SEM), and energy dispersive spectroscopy analysis, yet its mechanical properties were characterized through microhardness, dry sliding wear, and shear punch test. The tormented surface of the wear out and sheared specimen, investigated through FE-SEM of the as-processed composite, elicits improved tribological and shear properties as compared with pure aluminum.
Pre-colonial groups from brazilian coast and sharks: First glimpse on a complex relationship through the case study of the shallow site Rio do Meio, Santa Catarina
Authors: Gilson Simon-Pierre , Lessa Andrea 
Published: January 2020

Abstract: The excavation of the coastal shallow site Rio do Meio (500-700 years cal BP, Santa Catarina, Brazil) made available a large faunal collection with a particularly interesting frequency of shark remains. Considering all the identified faunal fragments, the centra and teeth of sharks participate with 15% of the remains, being the third most important element behind the bones of fish and shells. The high frequency of shark remains led to the questioning of the dietary value of this resource for coastal groups, fishing and processing techniques, as well as issues associated with their interaction with the supply territory. In this sense, the high frequency of Whitemouth croaker (Micropogonias furnieri) in association with shark remains at the Rio do Meio site suggests fishing strategies with non-aleatory choices, which may be related to geographic and environmental conditions, as well as to the interspecies interactions. These reflections provide new elements for discussions on diet and territory exploration for subsistence activities, and their implications in terms of spacial movement by these fisher-hunter-gatherer groups.

Resumo: A escavação do sítio raso Rio do Meio (500-700 years cal BP, Santa Catarina, Brasil) disponibilizou uma numerosa coleção faunística com uma frequência particularmente interessante de restos de tubarões. Considerando-se todos os remanescentes faunísticos identificados, as vértebras e dentes de tubarões participam com 15% do total da coleção, sendo o terceiro elemento mais importante, atrás dos ossos de peixes e das conchas. A alta frequência de restos de tubarões observada levou ao questionamento sobre o valor dietético desse recurso para os grupos litorâneos, sobre as técnicas de pesca e de processamento, assim como sobre questões associadas a sua interação com o território de abastecimento. Neste sentido, a alta frequência da corvina (Micropogonias furnieri) em associação com restos de tubarão no sítio Rio do Meio sugere estratégias de pesca com escolhas não-aleatórias, o que pode ser relacionado com condições geográficas e ambientais, assim como com interações interespécies. Essas reflexões fornecem novos elementos para discussões sobre dieta e exploração do território para atividades de subsistência, e suas implicações em termos de movimentação espacial por parte desses grupos pescadores-caçadores-coletores.
Quanto mais peixe, melhor: Sobre a importância da pesca para os Mbyá-Guarani
Authors: Tempass Mártin César 
Published: January 2020

O presente artigo resulta de quinze anos de diferentes pesquisas etnográficas realizadas em aldeias Mbyá-Guarani do estado do Rio Grande do Sul. O objetivo é analisar os aspectos práticos e simbólicos das pescarias e do consumo de peixes para este grupo indígena. Em um primeiro momento, analisaremos a relação da etnia com as águas e a importância atribuída aos peixes para a construção de corpos e almas perfeitos. Depois serão apresentadas as modalidades e técnicas empregadas pelos Mbyá-Guarani na prática pesqueira. Por fim, serão discutidas as regras que tornam sustentáveis as pescarias dos Mbyá-Guarani.
Abstract: This article is the result of fifteen years of different ethnographic research carried out in Mbyá-Guarani villages in the state of Rio Grande do Sul. The objective is to analyze the practical and symbolic aspects of fisheries and fish consumption for this indigenous group. In a first moment, we will analyze the relation of the ethnicity with the waters and the importance attributed to the fishes for the construction of perfect bodies and souls. Then the modalities and techniques used by the Mbyá-Guarani in fishing practice will be presented. Finally, we will analyze the rules that make sustainable the fisheries of the Mbyá-Guarani.