bluuebunny/crossref_metadata_2025 huggingface dataset:
Automatic Recognition of Porcine Abnormalities Based on a Sound Detection and Recognition System
Authors: Zhang Sunan , Tian Jianyan , Banerjee Amit , Li Jiangli
Published: January 2020

Abstract.

With the rapid development of large-scale breeding, manual long-term monitoring of the daily activities and health of livestock is costly and time-consuming. Therefore, the application of bio-acoustics to automatic monitoring has received increasing attention. Although bio-acoustical techniques have been applied to the recognition of animal sounds in many studies, there is a dearth of studies on the automatic recognition of abnormal sounds from farm animals. In this study, an automatic detection and recognition system based on bio-acoustics is proposed to hierarchically recognize abnormal animal states in a large-scale pig breeding environment. In this system, we extracted the mel-frequency cepstral coefficients (MFCC) and subband spectrum centroid (SSC) as composite feature parameters. At the first level, support vector data description (SVDD) is used to detect abnormal sounds in the acoustic data. At the second level, a back-propagation neural network (BPNN) is used to classify five kinds of abnormal sounds in pigs. Furthermore, improved spectral subtraction is developed to reduce the noise interference as much as possible. Experimental results show that the average detection accuracy and the average recognition accuracy of the proposed system are 94.2% and 95.4%, respectively. The effectiveness of the proposed sound detection and recognition system was also verified through tests at a pig farm. Keywords: Abnormal sounds, MFCC, SSC, States of pigs, SVDD.
Effects of a Pretreatment Combining Rubbing with Dilute Alkali on the Enzymatic Hydrolysis-Reducing Sugar Yield and Structure of Rice Straw
Authors: Liu Yutao , Chai Xicun , Chi Mingmei
Published: January 2020

Abstract.

Current pretreatments to digest cellulose straw are characterized by high energy consumption, environmental pollution, and other problems that limit straw biomass utilization. In this work, a rice straw rubbing pretreatment that is less energy-intensive than existing pretreatments is proposed to partly destroy the silicon layer. The rubbing pretreatment did not significantly increase the enzymatic hydrolysis-reducing sugar production rate of rice straw, but it enhanced the effect of subsequent dilute alkali pretreatment. The enzymatic hydrolysis-reducing sugar production rate after combined rubbing and alkali pretreatment was 33.63%, which was significantly higher than the rates achieved with original straw and with dilute alkali pretreatment alone. Rubbing pretreatment removed 33.40% of the surface silicon from the straw. This was significantly higher than the removal rates for original straw and dilute alkali pretreatment alone, but there was no marked difference in removal rate between the rubbing pretreatment and the combined rubbing and alkali pretreatment. The results indicate that rubbing pretreatment is an effective way to promote the efficiency of alkali pretreatment, and combined rubbing and alkali pretreatment greatly enhances the efficient utilization of rice straw.

Highlights

33.40% of the silicon layer on the surface of rice straw was removed by the rubbing pretreatment.

Cracks caused by the rubbing pretreatment are beneficial for chemical reagents to access the inner composites.

The rubbing pretreatment could enhance the efficiency of follow-up treatments for rice straw. Keywords: Rice straw, Rubbing pretreatment, Silicon layer, Sugar yield, Structure.
Biological activity of sponge-associated fungi from Karimunjawa Islands, Indonesia against pathogenic Streptococcus pneumoniae
Authors: Cristianawati Olvi , Sabdaningsih Aninditia , Becking Leontine Elisabeth , Khoeri Miftahudin Majid , Nuryadi Handung , Sabdono Agus , TRIANTO AGUS , RADJASA OCKY KARNA
Published: January 2020

Abstract. Cristianawati O, Sabdaningsih A, Becking LE, Khoeri MM, Nuryadi H, Sabdono A, Trianto A, Radjasa OK. 2019. Biological activity of sponge-associated fungi from Karimunjawa Islands, Indonesia against pathogenic Streptococcus pneumoniae. Biodiversitas 20: 2143-2150. Threats of drug-resistant Streptococcus pneumoniae and the urgent need for new antibiotics require prompt and sustained action for discovering bioactive compounds. This study aimed to isolate sponge-associated fungi as a candidate for sources of drugs. The sponge-associated fungi were screened against the MDR S. pneumoniae. The Deoxyribonucleic Acid (DNA) of fungal isolates that showed the most active was generated by using universal primers ITS1 and ITS4. While the sponge host was identified based on the molecular and by slide section. Out of twenty-nine fungal isolates from 13 marine sponges, S.06.2 isolate produced secondary metabolite that inhibiting the growth of MDR S. pneumoniae. Molecular identification based on the ITS region revealed that the active fungal isolate was closely related to Curvularia lunata, with a 99% similarity. The C. lunata S.06.2 was isolated from sponge Cinachyrella australiensis. Thus, C. lunata S.06.2_ LC315806 can serve as a fruitful strategy for the discovery of novel antibiotics for the treatment of MDR S. pneumoniae.
Bioconversion of pretreated wheat straw to ethanol by Monascus purpureus CBS 109.07 and Fusarium venenatum ATCC 20334 using simultaneous saccharification and fermentation
Authors: Yudianto David , NAINGGOLAN ELLYAS ALGA , Millati Ria , Hidayat Chusnul , Lennartsson Patrik , Taherzadeh Mohammad J , Niklasson Claes
Published: January 2020

Abstract. Yudianto D, Nainggolan EA, Millati R, Hidayat C, Lennartsson P, Taherzadeh MJ, Niklasson C. 2019. Bioconversion of pretreated wheat straw to ethanol by Monascus purpureus CBS 109.07 and Fusarium venenatum ATCC 20334 using simultaneous saccharification and fermentation. 20: 2229-2235. Fractions of sulfuric acid-pretreated wheat straw, i.e. solid, liquid, and a mixture of liquid and solid were used as substrates in simultaneous saccharification and fermentation (SSF) process to produce ethanol. The bioconversion was performed by Monascus purpureus CBS 109.07 and Fusarium venenatum ATCC 20334. The highest ethanol yields from solid, liquid and a mixture of solid and liquid fractions by M. purpureus CBS 109.07 were 0.36, 0.41, and 0.37 g/g glucose, respectively. The corresponding values by F. venenatum ATCC 20334 were 0.21, 0.54, 0.35 g/g glucose, respectively.
Fern species diversity across various land use types of Mt. Makiling, Luzon Island, Philippines
Authors: Alcala Ailene Antonio , Delos Angeles Marjorie D , Buot Inocencio, Jr. E
Published: January 2020

Abstract. Alcala AA, Delos Angeles MD, Buot Jr IE. 2019. Fern species diversity across various land use types of Mt. Makiling, Luzon Island, Philippines. Biodiversitas 20: 2437-2445. Mt. Makiling of Luzon Island, Philippines is home to many living organisms including ferns and fern allies which are one of the important understory vegetation in many forest communities and having various economic uses like food, medicine and ornamentation. This study identified fern species found in various land use types across the northeastern slope of Mt. Makiling, Los Baños, Philippines. The plot technique was employed using a 20x20 meter quadrat. Three (3) 5x2 subquadrats were randomly distributed within the established quadrat. Fern specimens were identified (sensu PPG, 2016) and measured. Samples were collected for herbarium voucher deposited in the PBDH. A total of 28 fern species with 22 genera from 14 families were found across land use types. Identified land use types were: i) Mahogany (341 m asl.); (ii) Agriculture (355 m asl.); (iii) Buffer zone (365 m asl.); (iv) Agroforest (368 m asl.); (v) Roadside (455 m asl.), and (vi) Forest (482 m asl.). The most represented fern families were found out to be Thelypteridaceae (5 spp), Dryopteridaceae (3 spp), Polypodiaceae (3 spp.), Pteridaceae (3 spp), Aspleniaceae (2 spp), Dennstaedtiaceae (2 spp), Selaginellaceae (2 spp.) and Tectariaceae (2 spp.). On the other hand the families Schizaeaceae, Lindsaeaceae, Davalliaceae, Nephrolepidaceae, and Marratiaceae are comprised of one species only. Pteris blumeana C. Agardh and Tectaria crenata Cav. were found only in buffer zone area. Dennstaedtia philippinensis Copel., Lygodium circinnatum (Burm. f.) Sw. and Microlepia sp., were found only in agroforest area; Sphaerostephanos unitus (L.) Holttum found only in agricultural; Bolbitis heteroclita (C. Presl) Ching and Microsorum membranifolium (R. Br.) Ching were found in roadside while Asplenium tenerum G. Forst. , Christella sp., Lindsaea fissa Copel. and Nephrolepis cordifolia (L.) C. Presl were found in forest area. Pneumatopteris nitidula (C. Presl) Holttum. is a dominant fern species found in agriculture and mahogany plantation area. There is a need to document fern species along with its population across land use types in order to utilize ferns as plant indicators due to their vulnerability to changes in environmental conditions. These results can shed light on the appropriate strategy for the conservation and management of ferns in Mt. Makiling.
Short Communication: Use of Geographic Information System for mapping of Aquilaria malaccensis land suitability in North Sumatra, Indonesia
Authors: RAHMAWATY RAHMAWATY , SINTIKE FRASTIKA  , RUTH MARIA ELTIANA MARPAUNG  , RIDWANTI BATUBARA  , ABDUL RAUF
Published: January 2020

Abstract. Rahmawaty,  Frastika S, Marpaung RME,  Batubara R,  Rauf A. 2019. Short Communication: Use of Geographic Information System for mapping of Aquilaria malaccensis land suitability in North Sumatra, Indonesia. Biodiversitas 20: 2561-2568.  The Geographic Information System (GIS) can be applicated in the field of forestry and agriculture, such as for mapping as part of land evaluation. The land suitability of Aquilaria malaccensis in the agroforestry land of North Sumatra Province is important.  Commonly, A. malaccensis were planted by the community in Langkat and Deli Serdang District. This study aimed to map the land suitability for A. malaccensis in Telaga Village, Sei Bingai Sub District, Langkat District, Peria-ria Village and Sari Laba Jahe Village, Biru-biru Sub District, Deli Serdang District. A survey method was used to collect soil samples in the field. Land suitability classification (LSC) for A. malaccensis was evaluated based on the matching method.  The results showed that the actual land suitability classes for A. malaccensis in Telaga Village were moderately suitable (S2) and marginally suitable (S3). The actual land suitability classes for A. malaccensis in Peria-ria Village and Sari Laba Jahe Village were moderately suitable (S2), marginally suitable (S3) and not suitable (N). There were several limiting factors in land suitability evaluation in the area, namely: nutrient retention (nr), erosion hazard (eh), and root zone medium (rc).
Short communication: Anatomical changes in the roots, rhizomes and leaves of seagrass (Cymodocea serrulata) in response to lead
Authors: Rosalina Dwi , ENDANG YULI HERAWATI  , MUHAMMAD MUSA  , DINI SOFARINI  , YENNY RISJANI
Published: January 2020

Abstract. Rosalina D, Herawati EY, Musa M, Sofarini D, Risjani Y. 2019. Short communication: Anatomical changes in the roots, rhizomes, and leaves of seagrass (Cymodocea serrulata) in response to lead. Biodiversitas 20: 2583-2588. Runoff of heavy metals as a result of urban and industrial development is a potential threat for seagrass populations in the coast. The objectives of this study were to study the anatomical changes in the tissues of roots, rhizomes, and leaves of seagrass Cymodocea serrulata in response to treatment with different concentrations of lead (Pb) for different time durations. This experiment used heavy metal Pb from a solution of Pb (NO3)2-with a concentration of 0 ppm, 5 ppm, 10 ppm, and 15 ppm and the treatment period extended up to 4 weeks with 3 replications. Analysis of changes in anatomical features showed that exodermis and endodermis cells in the roots thickened as lead concentration increased. The air spaces in the root cortex and rhizome also widened. Thickening of cell walls occurred in the epidermis and endodermis of rhizome. Likewise, in the leaves, thickening occurred in the upper and lower cuticle and also the upper and lower epidermis. In general, changes in anatomical features of root, rhizome, and leaves were observed in response to increasing lead concentrations. The results showed that C. serrulata developed some level of tolerance to heavy metals, especially lead.
A máquina do mundo (não) cabe em mim
Authors: Gomes Rafaela Abreu , Silva Odalice De Castro
Published: January 2020

Esta é uma reflexão, dividida em duas partes, acerca do que, no Timeu, de Platão, se propõe como organização do Universo, a partir de relações circulares, seguida de leitura crítica do poema “A máquina do mundo”, de Carlos Drummond de Andrade. Nossa escolha conflui para um percurso em direção a entendimentos de “engrenagens” fundamentais as quais, em conjunto, Drummond chamou máquina do mundo. Assim, não foi objetivo desta discussão o alcance de um consenso (ou resposta) para as questões suscitadas. A reflexão, orientada pelos textos filosófico e poético, se configura como exercício compreensivo-interpretativo-crítico, o que consideramos necessário ao pesquisador interessado em suas próprias dúvidas.
Explaining variation in evidence-based policy making in the American states
Authors: Yingling Dylan L. , Mallinson Daniel J.
Published: January 2020

Background:

Though evidence-based policy (EBP) has attracted considerable attention from the public, academics, and governments, prior studies have revealed little about how political parties, institutions, and policy context shape the adoption and implementation of these policies in the American states.

Aims and objectives:

Develop objective criteria for measuring these policies, as well as a hierarchy which describes the features that make some policies more advanced. This paper presents the first comprehensive study on EBP in the American states.

Methods:

Using assessments by the Pew and MacArthur foundations to measure EBP in the states for four topics: criminal justice, juvenile justice, behavioural health, and child welfare. Assess the relationship between EBP use and state political and institutional factors.

Results:

Democratic governors, Republican legislatures, state innovativeness are significant predictors of EBP engagement.

Discussion and conclusions:

This research makes a substantial contribution to the study of EBP and opens new avenues for future research on the political, cultural, and institutional factors that influence EBP adoption and implementation. In an era of extreme partisanship, our study finds that EBP is a policy niche where actors and institutions across political parties use research evidence to inform effective and efficient policies in ways that maximise the electoral incentives that such policies can offer.
Efficient computation of 2D point-spread functions for diffractive lenses
Authors: Ayazgok Suleyman , Oktem Figen S.
Published: January 2020

Diffractive lenses, such as Fresnel zone plates, photon sieves, and their modified versions, have been of significant recent interest in high-resolution imaging applications. As the advent of diffractive lens systems with different configurations expands, the fast and accurate simulation of these systems becomes crucial for both the design and image reconstruction tasks. Here we present a fast and accurate method for computing the 2D point-spread function (PSF) of an arbitrary diffractive lens. The method is based on the recently derived closed-form mathematical formula for the PSF and the transfer function of a diffractive lens. In the method, first, the samples of the transfer function are computed using the transmittance function of the diffractive lens, and then the inverse Fourier transform of this transfer function is computed to obtain the PSF. For accurate computation, the selection of the sampling parameters is handled with care, and simple selection rules are provided for this purpose. The developed method requires a single fast Fourier transform, and, therefore, has little computational complexity. Moreover, it is also applicable to any diffractive lens configuration with arbitrary-shaped structures and modulation. As a result, this fast and accurate PSF computation method enables efficient simulation, analysis, and development of diffractive lens systems under both focused and defocused settings.
Large-scale range diffraction grating displacement sensor based on polarization phase-shifting
Authors: Li Mengwei , Liang Zhouxin , Zhang Rui , Wu Qiannan , Xin Chenguang , Jin Li , Xie Kunyang , Zhao Hongbo
Published: January 2020

A method is proposed and demonstrated to improve a diffraction grating displacement sensor to simultaneously achieve nanometer-level resolution and an extended range of operation. The method exploits the polarization phase-shifting optical path to extract two sinusoidal signals with a quadrature phase shift. The interpolation circuit is applied to nonlinearly convert two sinusoidal signals into a standard incremental AB quadrature digital signal, implementing an extended operation range with the magnitude of a laser coherence length. This work enables displacement measurement operated at large-scale range, and provides a significant guide for the design of a high performance micro-displacement sensor.
Effect of an optical coating on in-band and out-of-band transmitted and reflected wavefront error measurements
Authors: Carlow Graham , Sullivan Brian T. , Montcalm Claude , Miles Alexander
Published: January 2020

The wavefront error (WE) of a surface with an optical coating (“filter”) is ideally measured at the in-band wavelength of the filter. However, quite often this is not possible, requiring that the filter be measured at an out-of-band wavelength (typically 633 nm), assuming that the filter transmits (for transmitted WE, or TWE) or reflects (for reflected WE, or RWE) at this wavelength. This out-of-band TWE/RWE is generally assumed to provide a good estimation of the desired in-band TWE/RWE. It will be shown in this paper that this is not the case for a large class of filters (i.e., bandpass) where the group delay is significantly different at the in-band and out-of-band wavelengths and where the optical filter exhibits a thickness non-uniformity across the surface. A theoretical explanation will be given along with an approach to predict the in-band TWE/RWE based on the coating non-uniformity, the measured out-of-band TWE/RWE, and the theoretical properties of the optical filter at the in-band and out-of-band wavelengths. A reasonable agreement between theory and measurement was demonstrated by measuring the TWE of an 11 nm wide bandpass filter (centered at 1048 nm) at both in-band (

λ
=

1048

n
m

) and out-of-band (

λ
=

625

n
m

) wavelengths. A similar treatment is provided for RWE.
Noise reduction in optical coherence tomography images using a deep neural network with perceptually-sensitive loss function
Authors: Qiu Bin , Huang Zhiyu , Liu Xi , Meng Xiangxi , You Yunfei , Liu Gangjun , Yang Kun , Maier Andreas , Ren Qiushi , Lu Yanye
Published: January 2020

Optical coherence tomography (OCT) is susceptible to the coherent noise, which is the speckle noise that deteriorates contrast and the detail structural information of OCT images, thus imposing significant limitations on the diagnostic capability of OCT. In this paper, we propose a novel OCT image denoising method by using an end-to-end deep learning network with a perceptually-sensitive loss function. The method has been validated on OCT images acquired from healthy volunteers’ eyes. The label images for training and evaluating OCT denoising deep learning models are images generated by averaging 50 frames of respective registered B-scans acquired from a region with scans occurring in one direction. The results showed that the new approach can outperform other related denoising methods on the aspects of preserving detail structure information of retinal layers and improving the perceptual metrics in the human visual perception.
Theoretical and experimental study of acoustic waves generated by thermocavitation and its application in the generation of liquid jets
Authors: Zaca-Morán R. , Castillo-Mixcóatl J. , Sierra-González N. E. , Pérez-Corte J. M. , Zaca-Morán P. , Ramírez-San-Juan J. C. , Ramos-García R. , Padilla-Martínez J. P.
Published: January 2020

Numerical simulations using the Finite-Difference Time-Domain method were used to study the propagation of an acoustic wave within a truncated ellipsoidal cavity. Based in our simulations, a fluidic device was designed and fabricated using a 3D printer in order to focus an acoustic wave more efficiently and expel a liquid jet. The device consists of an ellipsoidal shaped chamber filled with a highly absorbent solution at the operating wavelength (1064 nm) in order to create a vapor bubble using a continuous wavelength laser. The bubble rapidly expands and collapses emitting an acoustic wave that propagates inside the cavity, which was measured by using a needle hydrophone. The bubble collapse, and source of the acoustic wave, occurs in one focus of the cavity and the acoustic wave is focused on the other one, expelling a liquid jet to the exterior. The physical mechanism of the liquid jet generation is momentum transfer from the acoustic wave, which is strongly focused due to the geometry of the cavity. This mechanism is different to the methods that uses pulsed lasers for the same purpose. The maximum speed of the generated liquid microjets was approximately 20 m/s. One potential application of this fluidic device can be found for inkjet printing, coating and, maybe the most attractive, for drug delivery.
Deriving consistent ocean biological and biogeochemical products from multiple satellite ocean color sensors
Authors: Wang Menghua , Jiang Lide , Son SeungHyun , Liu Xiaoming , Voss Kenneth J.
Published: January 2020

A methodology is developed for deriving consistent ocean biological and biogeochemical products from multiple satellite ocean color sensors that have slightly different sensor spectral characteristics. Specifically, the required coefficients for algorithm modifications are obtained using the hyperspectral in situ optical measurements from the Marine Optical Buoy (MOBY) in the water off Hawaii. It is demonstrated that using the proposed approach for modifying ocean biological and biogeochemical algorithms, satellite-derived ocean property data over the global open ocean are consistent from multiple satellite sensors, although their corresponding sensor-measured normalized water-leaving radiance spectra nLw(λ) are different. Therefore, the proposed approach allows satellite-derived ocean biological and biogeochemical products to be consistent and can therefore be routinely merged from various satellite ocean color sensors. The proposed approach can be applied to any satellite algorithms that use the input of sensor-measured nLw(λ) spectra.
Genuine tripartite Einstein-Podolsky-Rosen steering in the cascaded nonlinear processes of third-harmonic generation
Authors: Liu Y. , Liang S. L. , Jin G. R. , Yu Y. B.
Published: January 2020

Recently, Einstein-Podolski-Rosen (EPR) steering has important application in quantum information processing, and it has been received considerable attention because of its uniqueness. The properties of quantum steering among three output fields generated by cascaded nonlinear processes of quasi-phase-matching third-harmonic generation in an optical cavity are investigated. Based on the criteria for multipartite EPR steering which proposed by He and Reid [PRL, 111, 250403 (2013)], the genuine tripartite EPR steering among pump, second-harmonic, and third-harmonic is demonstrated. The parameters which affect the quantum property are also discussed.
Ultra-broadband, polarization-independent, wide-angle near-perfect absorber incorporating a one-dimensional meta-surface with refractory materials from UV to the near-infrared region
Authors: Zhang Heng , Luo Minghui , Zhou Yun , Ji Yiqun , Chen Linsen
Published: January 2020

An ultra-broadband near-perfect absorber based on one-dimensional meta-surface utilizing refractory materials is proposed and demonstrated numerically. High absorptivity from UV to the near-infrared region (300-1200 nm) is attained for both transverse electric (TE) and transverse magnetic (TM) polarizations. For TE polarization, an average absorption of 96.0% with peak absorption up to 99.4% is attained. Simultaneously, an average absorption of 91.0% with peak absorption about 99.8% is achieved for TM polarization. Moreover, the high absorptivity can be maintained with incident angles up to 45°. The excellent performances are attributed to the trapping effect of the multiple resonance modes supported by the multi-layered structure. The ultra-broadband near-perfect absorber presented in this paper will provide a new method for realizing ultra-broadband polarization-independent absorption with a one-dimensional meta-surface, and has potential application prospects in color-printing, solar-energy harvesting, and other fields.
The key elements of cultural intelligence as a driver for digital leadership success
Authors: Rüth René , Netzer Torsten
Published: January 2020

In today‘s globalized economy, being successful in an industry almost necessarily implies an international approach of doing business. Restricting one’s economic activities to the domestic market will ultimately lead to disadvantages in comparison to multinational companies which are able to grow rapidly in emerging markets. The digital transformation further increases the possibilities for companies that operate across national borders and has become the enabler to serve customers all around the world and increase the responsiveness of the business in all areas. At the same time this fact further increases the pressure on companies driving global hypercompetition. In order to survive in this globalized, hypercompetitive world companies need to embrace the opportunity and internationalize their business. One of the main tools for successfully operating in different business cultures is the ability to manage the workforce in an international environment. Not only the foreignness of the new markets a company is operating in but also the different cultures of the team members are challenging modern leaders. The concept of cultural intelligence (CQ) provides the toolset to manage a diverse workforce from various cultural backgrounds within one organizational framework. CQ will be explained and its importance for digital leadership will be discussed. Especially when communication across borders and interaction between members and customers from different cultural background happens in real-time it is important to understand and interpret behavior correctly and communicate or act with a high and flexible cultural awareness. This is where the paper will line out that CQ has become an important tool for leadership success in a digital world and will explain the key elements of CQ with the highest influence on leadership in this digital setting.
Space-to-face (S2F) hospitality in spaces and places
Authors: Höykinpuro Ritva , Yrjölä Mika
Published: January 2020

This study investigates how spaces and places with no human interaction convey a sense of hospitality – a phenomenon we term space-to-face (S2F) hospitality. By problematizing the traditional conceptualizations of hospitality that emphasize the role of human interaction, this study aims to highlight the spatial aspects of hospitality. Physical environment has commonly been investigated only as one dimension of hospitality. However, spaces and places where there is nothing but the physical environment to convey a sense of hospitality are becoming increasingly common. For instance, railway or bus stations with ticket machines have no human interaction but a space and a place to convey a sense of being welcome or unwelcome. Using a participant-generated photography, this study was built on empirical data from 46 participants, who provided 234 photos and associated descriptions of perceived hospitality in spaces and places. As a result, we found six dimensions under macro and micro layers that capture S2F hospitality: domesticity, cleanliness, safety and security, restrictedness, intactness, and functionality. As a contribution, this study broadens the views on hospitality, and explores the concept of S2F hospitality that is relevant to for all types of spaces and places.
A freegan pop-up café: Embedding critical hospitalities into the curriculum
Authors: Obrador Pau
Published: January 2020

This 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.
Percepción sobre el soporte social brindado a cuidadores familiares de personas con enfermedad crónica
Authors: Arias-Rojas Mauricio , Carreño Sonia , Chaparro-Díaz Lorena
Published: January 2020

El objetivo de este estudio fue describir la percepción de soporte social del cuidador familiar de personas con enfermedades crónicas. Se utilizó un abordaje cualitativo descriptivo con análisis de contenido basado en una categorización de tipo inductivo, se incluyeron 130 participantes cuidadores principales captados por medio del grupo de investigación de Cuidado al paciente crónico y su familia. La información se recolectó por medio de cuestionarios escritos con preguntas abiertas durante los meses de Febrero a Junio del 2018 en la Facultad de Enfermería de la Universidad Nacional de Colombia. Los hallazgos se agruparon en 9 categorías que fueron denominadas como el soporte que alivia la carga, el soporte para afrontar y superar, necesidad de apoyo emocional, trascender en el apoyo espiritual, necesidad de apoyo tangible, soporte para apoyar a otros, Tecnologías de la información y la comunicación TICS como medio para el soporte, Percepción de soporte estatal e institucional y Ser un cuidador visible y apoyado. Se puede concluir que la mayor necesidad de soporte social expresada por los cuidadores esta relacionada con el apoyo emocional y espiritual, en el que hacer visible su labor, tener reconocimiento y estar acompañados es lo más importante para ellos.
Homens, necessidades de saúde e motivações para a automedicação
Authors: Sousa Anderson Reis de , Alencar Delmo de Carvalho , Silva Ádila Maria Matos da , Souza Cristine Santos de , Barros Juliana Ferreira , Pereira Álvaro
Published: January 2020

Objetivo: Descrever as necessidades de saúde dos homens e os fatores que motivam a prática da automedicação em um município do Nordeste brasileiro. Método: Trata-se de um estudo descritivo, exploratório, com abordagem qualitativa, cujo campo de pesquisa foi uma unidade de saúde da família de uma cidade do interior da Bahia, Brasil. Participaram do estudo homens que realizavam a prática da automedicação, nos meses de novembro de 2015 a maio de 2016. Para a coleta de dados, utilizou-se a entrevista com roteiro semiestruturado, organizados e apresentados pelo método Discurso do Sujeito Coletivo (DSC). Resultados: Considerando as expressões-chave e as ideias centrais dos discursos emergiram duas vertentes distintas, mas complementares, as necessidades de saúde e as motivações para a automedicação que perpassam por questões que envolvem a concepção dos homens sobre os serviços públicos de saúde. A insatisfação com a prestação da assistência, a carência de programas específicos e o fácil acesso a medicamentos, são os principais fatores que facilitam a prática da automedicação. Conclusões: Faz-se necessária a criação de mecanismos de fortalecimento e da qualificação da Atenção Básica quanto a importância da qualidade e integralidade da assistência, para que o homem abandone a prática da automedicação e passe a valorizar a prevenção à saúde.
Incertidumbre, estrés y su relación con el bienestar psicológico en familiares de dependientes del alcohol
Authors: Hinojosa García Laura , Alonso Castillo María Magdalena
Published: January 2020

Objetivos: identificar los niveles de incertidumbre, así como determinar la relación y el efecto de la incertidumbre y el estrés percibido con el bienestar psicológico del familiar principal de la persona dependiente del alcohol. Metodología: estudio cuantitativo correlacional y transversal, la muestra estuvo conformada por 135 mujeres familiares de personas dependientes del alcohol, los instrumentos utilizados fueron la Escala de Percepción de Incertidumbre en Padres y Miembros de la Familia (PPUS-FM) de Mishel y la Escala de Tensión Percibida (PSS), la cual fue diseñada por Cohen, et al. Resultados: el total de las participantes reportaron incertidumbre, predominó el nivel de incertidumbre alto (58.5%), a través de la prueba de correlación bivariada de Spearman se identificó correlación positiva y significativa de la incertidumbre con el estrés percibido (rs = .616, p < .01). Mediante un Modelo de Regresión Lineal General Multivariado se determinó un efecto negativo y significativo de la incertidumbre (β = -.413, t = -5.91, p = .001) y el estrés percibido (β = -.611, t = -11.45, p = .001) sobre el bienestar psicológico.
Incertidumbre en los cuidadores de niños hospitalizados en unidades de: cuidado intensivo neonatal – cuidado intensivo pediátrico (UCIN-UCIP)
Authors: Bautista Espinel Gloria Omaira , Velandia Galvis Martha Ligia , Arevalo Rangel Jofren Andrés , Amaya Quintero Camila , Bayona- Pérez Natalia
Published: January 2020

Objetivo: Determinar el nivel de incertidumbre ante la enfermedad y el significado de los factores que influyen en la experiencia de los cuidadores de niños de 0 a 14 años hospitalizados en UCI neonatal y pediátrica. Materiales y métodos: investigación mixta, con integración sistemática de los métodos cuantitativo y cualitativo, mediante triangulación analítica de los resultados, la muestra cuantitativa estuvo conformada por 285 cuidadores de niños internados en las UCI, y 10 informantes claves en el componente cualitativo. Resultados: La incertidumbre global en la población encuestada fue: regular, con un 57%, alto en un 36 %, solo el 7% presento nivel bajo; las categorías cualitativas fueron: experiencia difícil, imprevisibilidad, vínculo parental, apoyo, calidad de la atención, espiritualidad, esperanza y experiencia única. La triangulación analítica evidenció la aplicabilidad de los postulados teóricos en el contexto. Conclusión: La incertidumbre es una experiencia única, enmarcada por sentimientos y emociones generan una nueva perspectiva, delineada por factores asociados al estado de salud, como: ambigüedad, falta de claridad e información respecto a los hechos experimentados por los niños. Comunicarse con el personal de salud es relevante, porque permite al cuidador desarrollar estrategias de afrontamiento eficaces, disminuir sentimientos negativos, promover vínculos, soporte y capacidad para aceptar eventos.
El Diccionario de la Academia y su tiempo: DRAE 1817-DRAE 1852
Authors: Clavería Nadal Gloria
Published: January 2020

El artículo se propone establecer las principales líneas de desarrollo de seis ediciones decimonónicas consecutivas del Diccionario de la lengua castellana de la Real Academia Española, publicadas desde 1817 (5.ª edición) hasta 1852 (10.ª edición), a través del análisis de los principales cambios introducidos en el proceso de enmienda de cada nueva versión de la obra. Se extraen de este examen las directrices fundamentales de la evolución de la lexicografía académica de la época y se intenta encuadrarlas en la situación histórica, social y lexicográfica en la que nacieron. Se trata de unas ediciones en las que, en su conjunto, pesa más la reducción y revisión del diccionario que la acogida de innovaciones léxicas, pues en este período esta se regía por unos criterios de admisión bastante restrictivos, en especial, en el léxico facultativo.
Ressenya de Fontanella polièdric: poesia barroca i transmissió
Authors: Martín Pascual Llúcia
Published: January 2020

Fontanella polièdric: poesia barroca i transmissió, ed. VerònicaZaragoza i Pep Valsalobre, Barcelona, Institut d’Estudis Catalans-Universitat de Girona, 2019 («Memòries de la Secció Histórico-Arqueològica», 109), 274 pp. ISBN: 978-84-8458-537-4.
Gastric Leiomyosarcoma Unmasked by Bleeding From a Percutaneous Endoscopic Gastrostomy Tube
Authors: Gubatan John , Shah Nimeesh
Published: January 2020

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.
A Educação a Distância nas Políticas Públicas de Formação Continuada de Professores
Authors: Pereira Daniela de Oliveira
Published: January 2020

Este artigo tem como tema as políticas públicas de formação continuada de professores por meio da Educação a Distância – EAD e traz a seguinte questão problema: como as políticas de EAD se constituíram historicamente no Brasil e são implementadas na formação de educadores? Tem-se por objetivo analisar como a modalidade de EAD se inseriu, a partir da Lei de Diretrizes e Bases – LDB de 1996, nas políticas públicas de formação continuada de professores, especialmente nos Planos Nacionais de Educação. Utilizou-se como metodologia a pesquisa bibliográfica, qualitativa e de caráter exploratório, tendo por base autores como Dourado (2008), Belloni (2003), Nogueira (2011), Costa e Zanatta (2010), Pretto e Riccio (2010). O estudo aponta que as mudanças no sistema produtivo mundial influenciaram fortemente as políticas públicas, resultando em reformas para atender a demanda de novos profissionais, inclusive na educação.
Fatores a serem observados na criação de Áreas Protegidas: o caso do Parque Nacional do Descobrimento (Prado/BA).
Authors: Pontes Euripedes Junior , Fernandes Geraldo Wilson , Pereira Neto Prudente Almeida
Published: January 2020

A criação de áreas protegidas é um dos mecanismos encontrados para garantir a proteção da biodiversidade frente às constantes e crescentes ameaças. Neste estudo buscou-se analisar conceitos da Biologia da Conservação e sua aplicação na criação e ampliação do Parque Nacional do Descobrimento/BA, a partir da coleta de dados primários e secundários sobre a UC bem como a utilização de ferramentas de geoprocessamento. A criação da UC foi guiada basicamente pela oportunidade de aquisição da área, sendo que grandes oportunidades para a conservação da biodiversidade na região foram desconsideradas no processo. Discute-se também o grau de confiabilidade dos instrumentos de planejamento da UC bem como situações envolvendo a inserção da mesma na Zona de Amortecimento.
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

This 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

In 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

We 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

Novel 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

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

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

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.