bluuebunny/crossref_metadata_2025 huggingface dataset:
Combining sample expansion and light sheet microscopy for the volumetric imaging of virus-infected cells with super-resolution
Authors: Mascheroni Luca , Scherer Katharina M. , Manton James D. , Ward Edward , Dibben Oliver , Kaminski Clemens F.
Published: July 2020

Expansion microscopy is a sample preparation technique that enables the optical imaging of biological specimens at super-resolution owing to their physical magnification, which is achieved through water-absorbing polymers. The technique uses readily available chemicals and does not require sophisticated equipment, thus offering super-resolution to laboratories that are not microscopy-specialised. Here we present a protocol combining sample expansion with light sheet microscopy to generate high-contrast, high-resolution 3D reconstructions of whole virus-infected cells. The results are superior to those achievable with comparable imaging modalities and reveal details of the infection cycle that are not discernible before expansion. An image resolution of approximately 95 nm could be achieved in samples labelled in 3 colours. We resolve that the viral nucleoprotein is accumulated at the membrane of vesicular structures within the cell cytoplasm and how these vesicles are positioned relative to cellular structures. We provide detailed guidance and a video protocol for the optimal application of the method and demonstrate its potential to study virus-host cell interactions.
Two-dimensional small-angle scattering from single particles in infrared with a lensless technique
Authors: Ceolato Romain , Aleau Killian , Paulien Lucas , Fossard Frederic , Reynoso-Lara Edmundo , Berg Matthew J.
Published: July 2020

An experiment is described where two-dimensional small-angle light scattering (2D-SALS) patterns from single particles are measured in the infrared through a lens-free approach. Spatial filtering is employed to separate scattered light from unscattered light to within approximately one degree from the forward direction. Non-planar reflective elements are used in the filtering process, permitting 2D-SALS measurements to be done without chromatic aberrations over a broad spectral range and from 0.8 to 8 degrees in the polar scattering angle and zero to 360 degrees in the azimuthal angle. Patterns from spherical microparticles are presented along with nonspherical particles including volcanic ash and salt. An asymmetry analysis is applied to demonstrate an ability to differentiate spherical from nonspherical particles from the 2D-SALS patterns.
Resonant-cavity-enhanced responsivity in germanium-on-insulator photodetectors
Authors: Ghosh Soumava , Lin Kuan-Chih , Tsai Cheng-Hsun , Lee Kwang Hong , Chen Qimiao , Son Bongkwon , Mukhopadhyay Bratati , Tan Chuan Seng , Chang Guo-En
Published: July 2020

The germanium-on-insulator (GOI) has recently emerged as a new platform for complementary metal-oxide-semiconductor (CMOS)-compatible photonic integrated circuits. Here we report on resonant-cavity-enhanced optical responses in Ge photodetectors on a GOI platform where conventional photodetection is difficult. A 0.16% tensile strain is introduced to the high-quality Ge active layer to extend the photodetection range to cover the entire range of telecommunication C- and L-bands (1530–1620 nm). A carefully designed vertical cavity is created utilizing the insulator layer and the deposited SiO2 layer to enhance the optical confinement and thus optical response near the direct-gap absorption edge. Experimental results show a responsivity peak at 1590 nm, confirming the resonant cavity effect. Theoretical analysis shows that the optical responsivity in the C- and L-bands is significantly enhanced. Thus, we have demonstrated a new type of Ge photodetector on a GOI platform for CMOS-compatible photonic integrated circuits for telecommunication applications.
Phosphomolybdic Acid Prevents Nonspecific Nuclear Staining by Picrosirius Red but Is Converted to Molybdenum Blue by Blue Light
Authors: Hatori Mizuho , Moriya Shunichi , Fujimori Misa , Kobayashi Sayaka , Ikota Hayato , Shirabe Ken , Yokoo Hideaki , Kimura Kiminori , Saio Masanao
Published: July 2020

Picrosirius red (PSR) staining is generally used to evaluate liver fibrosis; however, PSR sometimes causes nonspecific nuclear staining. In this study, we evaluated the ability of phosphomolybdic acid (PMA) pretreatment to prevent nonspecific nuclear staining by PSR. In a manual evaluation of 27 non-tumor samples from patients with hepatocellular carcinoma, nonspecific nuclear staining was observed in 3.7% of PMA-treated specimens, compared with 85.2% of untreated specimens. Conversely, computer-assisted image analysis (CAIA) identified nonspecific nuclear staining in 0% of PMA-treated samples, vs 44.4% of untreated samples. Surprisingly, after mounting, PMA-treated specimens exhibited a blue tinge because of molybdenum blue (MB) production following sunlight exposure or virtual slide scanning. Using UV cut film, MB production induced by sunlight exposure was prevented; however, the film did not prevent MB production during virtual slide scanning. Moreover, only blue light–emitting diode exposure resulted in a blue tinge in PMA solution. Our data indicated that PMA pretreatment is effective for evaluating liver fibrosis using CAIA. Meanwhile, improvements in virtual slide scanning protocols would directly improve the quality of PMA-pretreated specimens subjected to CAIA:
EXPLORING MULTIDIMENSIONAL CONSTRUCTS OF TRUST IN PROCUREMENT PRACTICES: AN EVIDENCE FROM MALAYSIA
Authors: Aseh Khairi , Kenny Kamal , Pathmanathan Ravindran
Published: July 2020

During the last two decades, the study of procurement practices impacts on business performance has generated interest among many researchers. Yet very little literature deals specifically with how company success is affected by the procurement activities of companies. In fact, most of the papers reviewed on procurement activities are qualitative rather than empirical in nature. As a result, several businesses are starting to pursue further aspects of business-performing procurement activities. Against this backdrop, this work aims to fill this vacuum by performing empirical case studies at 28 companies operating in the worst ever chaotic climate in the world. The results of this research study attempt to determine the interconnection between the procurement practices of companies and business performance related to the seven trust attributes (commitment; openness; integrity, proximity, competence; reliability and security).
CORPORATE SOCIAL RESPONSIBILITY AND BUSINESS PERFORMANCE: EVIDENCE FROM MALAYSIA OIL AND GAS COMPANIES
Authors: Aseh Khairi , Kenny Kamal
Published: July 2020

This work aims to explore the relationship between Corporate Social Responsibility (CSR) and financial performance in the energy sector for publicly traded companies. Due to their size, environmental implications, and the operational risks associated with energy production, the energy sector has a unique role to play with worldwide CSR efforts. Earlier research on the relationship between CSR engagement and financial performance has been conducted in various contexts. However, the results of these investigations have been mixed, with some positive CSR-performance relationships, while in other studies, research is either non-existent or marginal. The question of research for this research thus addresses a considerable gap in understanding this topic in the contextualization of the energy sector through an analysis of the relationship between CSR and firm performance. A series of three financial parameters – asset return, equity return, and EBITDA – were the dependent variable. In this study, the population who are presently working in a company of the energy sector in Malaysia examines the sampling methodology. There is a total of 30 listed companies, which were in the "Energy" sector, based on Bursa Malaysia's official websites. For the subsection, two categories are included, namely: (1) Energy, Equipment, and Gas, and (2) Oil & Gas. The random selection will include two companies from each subcategory from the complete list. In detail, 100 respondents from each company will be selected randomly for the study.
CORPORATE GOVERNANCE: THE GATEWAY TO A ROBUST CORPORATE FINANCIAL PERFORMANCE IN MALAYSIA
Authors: Aseh Khairi , Kenny Kamal , Pathmanathan Ravindran
Published: July 2020

In recent years, with corporate scandals and the global financial crisis, the emerging concept of corporate governance has received increasing attention in the corporate world in these days. It is seen as a moral obligation and includes supporting the consistency of the law and showing ethical guidance. Corporate governance is seen as an important tool for the financial performance of companies, and investor investment decisions have become a more serious topic, so the relationship between corporate governance tools and measurement of financial performance has attracted researchers' interest in the past decade mainly in developed and developing cities. In this study, we attempted to examine the impact of corporate governance on corporate financial performance in Kuala Lumpur using a sample of 215 companies on KLSE. Like previous research, firm, age, firm size, board size, CEO duality, board composition, board committees is the independent variables and their influence is to measure the financial ROA, ROE and Tobin's q , all kinds of test is used to investigate the relationship such as descriptive analysis, Pearson moment related test and regression using first data over a period of time.
Women Writers and the Images of Women Representation in the Post-Colonial Literature. Case Study of Zuwaira Isa Jos and Her Struggles.
Authors: Ibrahim Balbasatu
Published: July 2020

Women in Northern Nigeria although seemed and portrayed by many as naïve and back ward educationally, economically and politically, are blessed with talents and determination . These qualities make them able to struggle and overcome most of the cultural inhibitions; of gender discriminations and religious misconceptions that hinder them from participating in decision making and accessing other basic necessities for human development. They manage to break the silence and raise their voices through oral and written literature, where they lament and admonish the society against some cultural practices that are usually targeted at women folks.  In this paper one of such women writers; Zuwaira Isa Jos, and her works are discussed.
Globalisation And Public Policy In Nigeria: Challenges And Prospects
Authors: Arugu Love , Jacob Ogedi
Published: July 2020

This paper attempts to look at the impact of globalisation on public policy as it affects the economic development in Nigeria. The main proposition of this paper is that Nigeria cannot comfront the challenges of contemporary globalisation without a sustained effort to develop her economic foundations. This is because globalisation will most likely be utilitarian if its end can foster domestic development agenda. The paper was anchored on the Marxist Theory of State. The import of this approach to the paper is that it proceeds from a holistic examination of the country's historical experience and its implication for the present day political economy. The research design was historical-descriptive research design and the data were obtained through secondary sources. Content analysis was used in analyzing the data obtained. The paper concludes that many poor countries like Nigeria liberalised its economy without adequate preparation and precaution. The paper recommended inter-alia that Nigeria should formulate economic policies that recognises her specific needs and circumstances in order to promote inclusive economic development.
New formula for solution of one class of linear differential equations of the second order with the variable coefficients
Authors: Asanov Avyt , Asanova Kanykei
Published: July 2020

Exact solutions for linear and nonlinear differential equations play an important rolein theoretical and practical research. In particular many works have been devoted tofinding a formula for solving second order linear differential equations with variablecoefficients. In this paper we obtained the formula for the common solution of thelinear differential equation of the second order with the variable coefficients in themore common case. We also obtained the new formula for the solution of the Cauchyproblem for the linear differential equation of the second order with the variablecoefficients.Examples illustrating the application of the obtained formula for solvingsecond-order linear differential equations are given.Key words: The linear differential equation, the second order, the variablecoefficients,the new formula for the common solution, Cauchy problem, examples.
Dualität in der regelungstechnischen Methodenentwicklung
Authors: Rudolph Joachim
Published: July 2020

Das Dualitätskonzept ist für lineare Systeme etabliert, wobei im zeitvarianten Fall der Begriff des adjungierten Systems ins Spiel kommt. Es war außerdem eine stete Quelle der Inspiration über den linearen Fall hinaus. Einige Beziehungen zwischen dem linearen zeitvarianten Fall und der Analyse sowie dem Entwurf nichtlinearer Systeme werden in Erinnerung gebracht und aus einem neuen Winkel betrachtet. Dabei spielen die Linearisierung um Trajektorien und eine Betrachtung unabhängig von Zustandsdarstellungen eine Schlüsselrolle. Regler- und Beobachterentwurf werden mit Hilfe sog. kanonischer Formen ebenfalls diskutiert.
Google Play Content Scraping and Knowledge Engineering using Natural Language Processing Techniques with the Analysis of User Reviews
Authors: Aldabbas Hamza , Bajahzar Abdullah , Alruily Meshrif , Qureshi Ali Adil , Amir Latif Rana M. , Farhan Muhammad
Published: July 2020

To maintain the competitive edge and evaluating the needs of the quality app is in the mobile application market. The user’s feedback on these applications plays an essential role in the mobile application development industry. The rapid growth of web technology gave people an opportunity to interact and express their review, rate and share their feedback about applications. In this paper we have scrapped 506259 of user reviews and applications rate from Google Play Store from 14 different categories. The statistical information was measured in the results using different of common machine learning algorithms such as the Logistic Regression, Random Forest Classifier, and Multinomial Naïve Bayes. Different parameters including the accuracy, precision, recall, and F1 score were used to evaluate Bigram, Trigram, and N-gram, and the statistical result of these algorithms was compared. The analysis of each algorithm, one by one, is performed, and the result has been evaluated. It is concluded that logistic regression is the best algorithm for review analysis of the Google Play Store applications. The results have been checked scientifically, and it is found that the accuracy of the logistic regression algorithm for analyzing different reviews based on three classes, i.e., positive, negative, and neutral.
Queering the Protest’s Temporalities
Authors: Cuello Nicolás
Published: July 2020

This essay reviews a set of contemporary experiences of sex-political organization in the history of the Argentinian antagonistic imagination. It sketches an experimental, theoretical diagram of the power of queer negativity as it has been mobilized by several strategies of public space occupation. Addressing the interference and discontinuity of political time in the wake of new experiences of strike allows one to identify other forms of critical approaches to the streets’ heteronormative control systems. It also allows one to trace how new agencies of common organization can be activated for destabilizing the projective direction of emancipatory Left utopias, creating space for new vital protests.
Treatment strategies for encephalopathy related to status epilepticus during slow sleep, a narrative review of the literature
Authors: Zhang Ke , Yan Yu , Su Tangfeng
Published: July 2020

Encephalopathy related to Status Epilepticus during slow Sleep (ESES) is an age-dependent syndrome characterized by the appearance of neuropsychological and behavioral disorders associated with extreme activation of epileptic activity during sleep. The major goal of therapy in ESES is to prevent neuropsychological deficits. Effective therapy to reduce seizures and resolve the EEG pattern of status epilepticus during sleep (SES) may be crucial to improve long-term prognosis. However, whether to improve neurodevelopmental deficits by suppressing or eliminating SES remains unknown. The purpose of this article is to review current therapeutic options in ESES, in order to provide better alternatives. Treatment options consist of antiepileptic drugs, steroids, immunoglobulins, the ketogenic diet, and surgery. Maybe therapy targeted mechanisms can be developed with deep insight into the etiology of ESES.
Trailblazing a Movement
Authors: Roaf Mary
Published: July 2020

This essay includes an interview with Black Student Union co-founders Jerry Varnado and James Garrett in which they reflect on their leadership roles and personal experiences at San Francisco State in the 1960s as well as the events around the student-led strike and subsequent founding of the School of Ethnic Studies. They also discuss their wider activism and community engagement in the field of Ethnic Studies as well as their thoughts on the direction of the field today.
Why I Wrote Golden Children
Authors: Lott Juanita Tamayo
Published: July 2020

Through a discussion of her recent book, Golden Children: The Legacy of Ethnic Studies at SF State (2018), the author offers a reflection on the significance of the BSU/TWLF student-led strike at San Francisco State University and the founding of the School (now College) of Ethnic Studies. She additionally discusses her motivation for writing the book as well as comments on the past, present, and future of Ethnic Studies.
The care provided to the sexual partners of people living with the human immunodeficiency virus
Authors: Oliveira Layze Braz de , Costa Christefany Régia Braz , Sena Inara Viviane de Oliveira , Borges Paulo de Tarso Moura , Araújo Telma Maria Evangelista de , Reis Renata Karina
Published: July 2020

Objective: to analyze the care provided to sexual partners of people living with the human immunodeficiency virus. Methods: cross-sectional study with 173 participants, carried out in a service specialized in the treatment of people with the human immunodeficiency virus, submitted to a statistical analysis (chi-square test and Fisher’s exact test). Results: having the partner invited to attend the health service (p<0.001), receiving guidance on prevention in the health service (p<0.001), and being seen at the specialized service as a couple for counseling on sexual practices and preventive strategies (p<0.001) showed statistical differences. Conclusion: there are gaps in the care provided to sexual partners on strategies for preventing infection by the human immunodeficiency virus.
Predictive factors for worsening chronic wounds
Authors: Silva Álef Lucas Dantas de Araújo , Matias Lucas David Maia , Freitas Jucicleia Maiara da Silva , Costa Marta Miriam Lopes , LIMA DE ANDRADE LIDIANE
Published: July 2020

Objective: to analyze the predictive factors for the aggravation of chronic wounds. Methods: quantitative, cross-sectional study, whose collection was performed using the Bates-Jensen Wound Assessment Tool. For data analysis, the independent t test, analysis of variance and multiple linear regressions were applied. The level of significance adopted was 0.05. Results: in the bivariate analysis, it was observed that the variables making use of tobacco (p=0.005), presenting food restriction (p=0.001), signs of infection (p=0.005), odor characteristics (p<0.001) and evaluation pain (p=0.012) contributed to the worsening of chronic wounds. Conclusion: it was found as predictors for the worsening of wounds: using tobacco, having food restriction of the hypo sodium or hypoglycemic type, in addition to presenting edema in the surrounding area, as a sign of infection.
Healthcare experiences of homeless pregnant women
Authors: Barros Keila Cristina Costa , Moreira Rita de Cássia Rocha , Leal Mariana Silveira , Ferreira Bispo Tânia Cristiane , Azevedo Rosana Freitas
Published: July 2020

Objective: to understand healthcare experiences from the perspective of women who are or were pregnant while in homelessness. Methods: qualitative study based on Heideggerian phenomenology adapted to the field of health. There were ten participants. The technique of phenomenological interview and a semi-structured instrument were used. The comprehensive analysis methodically followed the stages of phenomenological reduction, construction,and destruction. Results: the existence of pregnant homeless women represents difficulties, discrimination, violence, prejudice, racism,and vulnerability. It is a violation of human dignity, revealing specificities and nuances of the triad women-maternity-street. Conclusion: the research made it possible to understand that healthcare, from the perspective of women who are pregnant while homeless, offers risks both to the mother and to the child. Both the self-care and the healthcare offered by health workers and services is precarious and has weaknesses, being different from any type of care that could be understood as solicitous, zealous, and concerned.
Factors associated with readmissions to an adult intensive care unit at a university hospital
Authors: Lopes Daniele , Fernandes Luciana Magnani , Alves Débora Cristina Ignácio , Tonini Nelsi Salete , Oliveira João Lucas Campos de
Published: July 2020

Objective: to verify the rate and factors associated with readmissions in the Intensive Care Unit. Methods: a documentary study, carried out with a sample (n=441) of medical records of adult patients admitted to the Intensive Care Unit of a university hospital. The descriptive and inferential statistical analysis was applied, using Pearson’s correlation, the chi-square test, and the t-student test, at a 5% confidence level. Results: most were men (66.2%), with 52.8±18.5 years of age and hospital stay of 10.2±10.8 days. Of these, 29 (6.5%) were readmitted. Death was similar (p=0.893) between readmitted (31.0%) and not readmitted (29.8%). There was no significant correlation between the readmission outcome and age, Nursing Activities Score and time on mechanical ventilation. By comparison, the hospital stay, and extubation were significantly longer (p<0.05) among those readmitted. Conclusion: the rate of readmission was slightly low. Only extubation time was negatively and significantly correlated with the readmission outcome.
The perception of ostomized patients with colorectal cancer regarding their quality of life
Authors: Macêdo Luan Monteiro , Cavalcante Viviane Mamede Vasconcelos , Coelho Manuela de Mendonça Figueirêdo , Ramos Stéphannie Lynne Torres Costa , Correia Débora Lira , Menezes Thalia Alves Chagas , Rodrigues Andrea Bezerra
Published: July 2020

Objective: to understanding the perception of ostomized patients affected by colorectal neoplasms regarding their quality of life. Methods: qualitative research, with 15 patients in outpatient treatment. Data collected through semi-structured interviews. To organize and present data, the content analysis technique was used. Data were interpreted according to the social phenomenology of Alfred Schutz. Results: three thematic categories emerged: Quality of life: social, psychic, and spiritual influences; Personal and environmental adaptations considering the new reality; and Complications of living with an ostomy. Conclusion: patients with ostomies resulting from colorectal cancer, in general, have variations in the way they perceive their quality of life. In the physical domain, they consider the device to be vital in the treatment, but it generated, a priori, social isolation, due to embarrassment, requiring them to adapt to the new reality as to diminish its emotional impact, which frequently presents in the form of sadness and non-acceptance.
FIELD WEAKENING CONTROL FOR INDUCTION MOTORS BASED ON COPPER AND IRON LOSSES MINIMIZATION
Authors: Tolochko Olga I. , Kaluhin Danylo V. , Palis Stefan , Oshurko Serhii V.
Published: July 2020

This paper is concerned with the analysis of losses in induction motors. The most significant have been chose for minimization. These are in particular the losses in the windings and in the magnetic circuit due to eddy currents and hysteresis. Equations for the rotor flux linkage and orthogonal components of the stator current in the rotor reference frame dq in the induction motor’s vector control system based on the condition of minimizing the total losses in copper and motor steel in the steady state. Here, effects of steel saturation are not taken into account. The limit values of the torque and speed are determined, where the rotor flux linkage con-trol can improve the energy characteristics of the drive outside the magnetic saturation. It is shown that the main difficulty in imple-menting energy-optimal control is that the rotor flux linkage operates not only energy parameters, but also speed regulation in the field-weakening region.A block diagram of the implementation of energy-optimal control with field weakening mode is proposed. The idea is to switch the control algorithms of the magnetic field of the motor in such a way that in the start-brake modes the rotor flux linkage changes in the speed reference function, and when operating at a steady speed, in the function of the torque. A co mpara-tive analysis for a typical and developed drive systems in field-weakening mode by the simulation is carried out.It is shown that with the same transients of the torque and speed in a typical system, the efficiency in steady-state decreases with a decrease of torque load torque, whereas the proposed system it remains unchanged. The change in efficiency in dynamic conditions occurs when the rotor flux linkage changes. With energy-optimal control, there is a slight increase in the stator current peaks when the torque load changes abruptly, but at low torque load an additional field-weakening leads to a decrease in the stator voltage, which carry on a decrease in electricity consumption.
PROFESINIAI PENSIJŲ FONDAI: TEISINIS REGULIAVIMAS IR PROBLEMOS
Authors: Bitinas Audrius
Published: July 2020

Šiame straipsnyje analizuojamos profesinių pensijų fondų teisinio reguliavimo nuostatos Europos Sąjungos instituciniu lygmeniu ir Lietuvoje, profesinių pensijų fondų veiklos schemos ir problematika. Atskleidžiami esminiai Lietuvos profesinių pensijų sistemos trūkumai ir pateikiami galimi šių trūkumų šalinimo pasiūlymai. Straipsnio tikslas – pateikti profesinių pensijų fondų instituto analizę ir atskleisti probleminius šio instituto taikymo aspektus. Straipsnis skiriamas finansų rinkos dalyviams, teisininkams ir šia sritimi besidomintiems mokslininkams.
Peningkatan Kemampuan Motorik Halus Melalui Kegiatan Mozaik Pada Siswa Kelompok B
Authors: Qomariah Qomariah , Marlina Leny , Oktamarina Lidia
Published: July 2020

The undeveloped child's fine motor ability is the background for this research. The problems in this study were child's undevelopment ability to control fingers and hands, undevelopment of skills using media with the coordination between eyes and hands. The subject of his research was the B3 group of 18 children. This was based on action research method. It used the Kemmis & McTaggart Research design which consists of planning, observation and reflection actions. There were two cycles with four times meeting in each cycle. Data used in the observation were field records, interview notes and documentation notes. The techniques of data analysis in this study were qualitative data analysis and quantitative data analysis. The results showed that in the pre-cycle phase, the child's fine motor ability level reached 47.66%, whereas after using mozaic activities in cycle 1 it reached until 59.91% and in cycle 2 it reached to 80.08%. It can be concluded that there is a significant increase in the child's fine motor ability through mosaic activities.
Interaksi Sosial Anak Nonreguler di SLB Zinnia Jakarta
Authors: Harjani Haryanti Jaya
Published: July 2020

The objective of this research is to describe study the social interaction of children with special needs such as autism spectrum disorders, down syndrome and mental retardation. This research is a qualitative research with a phenomenological method. The data analysis used is by the Miles and Huberman. Research data obtained from observations, interviews, and documentation. The research shows that: (1) Children's social interactions include communication, cooperation, and empathy have increased. Communication with peers is good even though it is limited, the child is able to work together in carrying out group assignments from his teacher (educator and therapist), as well as children learn empathy by giving some food that they brought to school with their friends; (2) Behavioral therapy learning model is used for education process; (3) The role of behavioral therapy learning model in the formation of social interactions of special needs children;(4) The role of parents, the environment home, school environment, and community environment in the formation of social interactions of non-regular children; (5) The success in this study is shown by changes in children’s behaviour in the home environment, school environment, and in the community environment.
Variation in Rayleigh wave ellipticity as a possible indicator of earthflow mobility: a case study of Sobradinho landslide compared with pile load testing
Authors: Hussain Yawar , Cardenas-Soto Martin , Moreira César , Rodriguez-Rebolledo Juan , Hamza Omar , Prado Renato , Martinez-Carvajal Hernan , Dou Jie
Published: July 2020

Rainfall-induced landslides pose a significant risk to communities and infrastructures. To improve the prediction of such events, it is imperative to adequately investigate the rainfall-dependent dynamics (leading to fluidization) and any associated internal sliding along shear planes within clayey slopes. Therefore, the present study adopted ambient noise analysis based on the Horizontal to Vertical Spectral Ratio (HVSR) method, to measure the seasonal variation of Rayleigh wave ellipticity as an indicator for the internal deformation and transition in the material state. The methodology was applied to an existing landslide, where variations in soil stiffness and internal sliding were expected to occur in response to rainfall. To improve the interpretation of the HVSR results (and hence the prediction of landslide’ reactivation by rainfall), HVSR measurements were also conducted on a field-scale pile load test. The pile test allowed a comparison of the seismic data generated by the soil movement along shear planes. The HVSR curves of this field test showed two frequency peaks with no changes in the resonance. In comparison with the data obtained from the landslide, the resultant HVSR curves showed three frequency patterns: ubiquitous (2Hz), landslide (4-8Hz), and flat (no peak). However, the HVSR curves did not show any response to the expected seasonally induced variations in the landslide mass because of the relatively short data acquisition. Nevertheless, time-lapse HVSR is a promising technique that can complement other geophysical methods for improving landslide monitoring.
GPS elevation fitting study based on ternary polynomial regression
Authors: Wang Jianmin , Xie Dongping
Published: July 2020

For the traditional GPS elevation fitting method, the accuracy has not been significantly improved in recent years, and the method has become increasingly complicated. This paper proposes to insert the geodetic height ‘H’ into the calculation system and use a ternary polynomial regression function to fit the GPS elevation anomaly. The feasibility of the ternary polynomial regression method in GPS elevation fitting was verified by an example, and compared with the results of the traditional plane fitting and quadric surface fitting method, it was proved that the proposed method is suitable for terrain with large terrain fluctuations. The fitting residual error and the standard deviation are smaller, and through example calculations, it is concluded that the ternary polynomial regression method under the seven parameters has the highest fitting accuracy.
LA LUCHA POR LOS DERECHOS DE LAS PERSONAS ADULTAS MAYORES EN NICARAGUA (2007- 2017)
Authors: Serra Vázquez Luis Héctor
Published: July 2020

Este artículo tiene el objetivo de describir y analizar las experiencias de lucha del movimiento social de personas pensionadas nicaragüenses desde su origen en el año 2007 hasta el 2017. Se ha utilizado una metodología participativa por medio de la realización de entrevistas a 57 miembros del movimiento, llevadas a cabo en 9 departamentos del país a finales del 2017. Asimismo, se estudiaron fuentes documentales para reforzar la temática. En los hallazgos se destaca la conformación de una sólida organización a nivel nacional, la incidencia en políticas públicas como la pensión de vejez y la inclusión en espacios de concertación con el Estado.
HISTORIA DEL CANTÓN DE GOLFITO, COSTA RICA AÑOS 1864-2011
Authors: Fonseca Zúñiga Edgardo
Published: July 2020

Este artículo detalla el desarrollo histórico del cantón de Golfito. En el primer apartado, se analizó el origen del cantón y las primeras actividades económicas y sociales realizadas en el Golfo Dulce. En un segundo punto, se estudió la influencia de la actividad bananera y en un tercer apartado, se investigó la situación del cantón después de la salida de la Compañía Bananera. Para lograr estos objetivos se realizó un análisis de la composición de la población a través de los censos desde el año 1864 hasta el 2011.
CONSTRUCCIÓN Y REPRESENTACIÓN DE MODERNIDAD. EL PAPEL PERIÓDICO ILUSTRADO EN SU ENTORNO Y AL INTERIOR DEL MUSEO NACIONAL DE COLOMBIA
Authors: Celis Hernández Marlon Steve
Published: July 2020

El propósito del documento es revisar la construcción y la representación de la modernidad en el Papel Periódico Ilustrado, en su entorno y al interior del Museo Nacional de Colombia. Se introduce representaciones sobre esta publicación de final del siglo xix y su vinculación en el museo con su guion curatorial en la última década del siglo xx. La revisión documental demuestra significados sobre la nación decimonónica y la construcción de una narrativa histórica desde el plano escrito y visual en Colombia.
Pertinencia de un Programa Docente ante los retos de la Industria 4.0
Authors: Corona Flores José Daniel , Ruelas-Chacón Xochitl , Rebolloso-Padilla Oscar , Fuentes-Lara Laura , Aguilera-Carbó Antonio
Published: July 2020

Objetivo: identificar el grado de pertinencia del Programa Docentede Ingeniero en Ciencia y Tecnología de Alimentos (PDICTA) para enfrentar los retos que demanda la Cuarta Revolución Industrial o Industria 4.0. Método: para la recolección de los datos se aplicó una encuesta como instrumento de medición, utilizando la escala de Likert de cinco opciones de respuesta a 10 ítemspara una muestra representativa de 12 profesores y 14 egresados del programa. Para el análisis de los datos de la encuesta, se aplicó la estadística descriptiva. Resultados:Los hallazgos fueron los siguientes: en 4 de los items, los profesores y egresados manifestaron estar de acuerdo, mientras que en los 6 items restantes, los resultados mostraron diferentes respuestas que estuvieron en niveles que variaron desde estar en desacuerdo, neutral y de acuerdo.Discusión y conclusión:Tanto los profesores como los egresados, estuvieron de acuerdo en que los primeros apoyaron a los segundos en el desarrollo de cuatro de las diez habilidades o competencias que demanda la Industria 4.0, lo que indica queel PDICTA está en un proceso de cambio para incurcionsr en el mercado laboral que demanda ia Industria 4.0.
Competencias digitales docentes y el reto de la educación virtual derivado de la covid-19
Authors: Martínez-Garcés Josnel , Garcés-Fuenmayor Jacqueline
Published: July 2020

Objetivo: determinar las competencias digitales de los docentes frente a la implementación de la educación virtual en una institución de educación superior ubicada en el departamento Valle del Cauca – Colombia como consecuencia de la pandemia generada por la COVID-19. Método: descriptivo, la población fue de cincuenta y dos (52) docentes vinculados durante el período académico 2020-I. El error muestral fue 6,5%. La recolección de datos se hizo a través de dos cuestionarios cuya confiabilidad fue de 0.937 para ambos, medida a través del coeficiente Alpha-Cronbach. Resultados: se destaca la facilidad para clasificar información digital (78,85%), compartir información a través de medios virtuales (50,00%), editar contenido digital (40,38%), proteger datos personales (40,38%), y desarrollar competencias conceptuales (42,31%). Existen correlaciones directas, positivas y fuertes entre tres de las competencias. El nivel de capacidades se ubica en integrador II (52,00%). Discusión y Conclusiones: informatización y alfabetización informacional, comunicación y colaboración, y resolución de problemas son las competencias más desarrolladas; creación de contenido digital y seguridad son las más débiles. Pocos docentes alcanzan un nivel innovador de competencias. Se deben implementar estrategias de fortalecimiento previendo la extensión del aislamiento preventivo obligatorio producto de la pandemia generada por la COVID-19 y la necesidad de garantizar la calidad del servicio educativo que se presta en la institución.
Videodiscs as Databases
Authors: Gillespie Junetta
Published: July 2020

The special properties of videodiscs, the economicsof videodisc production, and the nature ofour educational system are put forward as argumentsin favor of making cost effective videodiscsby designing and utilizing them as aural andvisual databases designed to be utilized at avariety of levels and in a variety of instructionalcontexts rather than as the basis for highly evolvedand specialized lesson designs or as ''just anotherway" of delivering film or videotape.
Interactive Video
Authors: Cline William J.
Published: July 2020

Interactive video is a rapidly growing technologywhich holds great promise for teachingforeign language and culture. Multimediacontextualization of the language and simulationsof typical cultural situations are powerfultools for language teachers and learners. Interactivevideo is often delivered with alternateworkstation designs: one with a single monitorto present simultaneous video and text, and onewith different monitors for video and computertext and graphics. This study investigates thepossibility that the workstation configurationsmight have a differential impact on studentperformance on a test of Spanish culture. Studentsin second semester college Spanish classesstudied five interactive video Spanish culturesimulations during the semester. Some studentsused a single monitor workstation and others adual monitor design. They were given pre- andpost-tests on Spanish culture and the resultswere analyzed for significant differences. Additionalfactors influencing workstation design(e.g., hardware and software costs, user friendliness)are also discussed.
Los refranes recogidos en el Vocabulista del P. Patricio de la Torre
Authors: Moscoso García Francisco
Published: July 2020

La obra Vocabulista, escrita por P. Patricio de la Torre en Tánger a finales del siglo XVIII y principios del XIX, recoge un total de 183 refranes que presentamos en este artículo. Algunos de ellos aparecen en fuentes andalusíes (az-Zağğāli, Ibn ʕĀṣim y Alonso del Castillo) y otros perduran en el refranero marroquí actual. Ofrecemos en este trabajo su presentación lingüística y estilística, además de un estudio comparativo con estas fuentes. Hemos incorporado además dos apéndices con todos los refranes y un glosario.
Eisejuaz: chamán (y relatos de la vida de Santos Aparicio)
Authors: Flores Esquivel Enrique
Published: July 2020

Esta conversación con el pastor Marcos Delgado, de la Misión Evangélica Asamblea de Dios —de Embarcación, en Salta, Argentina—, se realizó en el anochecer del lunes 15 de septiembre de 2019, a propósito de Lisandro Vega, el “verdadero Eisejuaz”, protagonista de la novela Eisejuaz de Sara Gallardo publicada en 1971 y miembro de la misma Iglesia. El pastor habla extensamente del hombre, así como de Santos Aparicio, otro personaje de gran relevancia en la novela y en la cultura de los “matacos” —nombre con el que antes, de manera despectiva, se designaba al pueblo de Eisejuaz—, en un rico informe, híbrido y subjetivo, de los intérpretes, los “chamanes de Dios” y otras caras del chamanismo wichí.
La leyenda de María Sánchez en Santo Domingo Tomaltepec (Oaxaca)
Authors: Cruz Martínez Xochiquetzalli
Published: July 2020

En este artículo sigo el itinerario de una leyenda oral protagonizada por una mujer mítica que se dedica a agredir y a veces a causar la muerte a los hombres borrachos, donjuanes o maltratadores, cuando se encuentra con ellos en algún lugar apartado o silvestre. Analizaré paralelos en otros pueblos de Oaxaca y de México, y también de otros países del continente americano y de España. Los antecedentes del relato remontan incluso al cuento europeo medieval. Analizo los paralelismos con un cuento del Sendebar castellano del siglo XIII.
Trascendencia de las normas de carácter oral y consuetudinario en los rituales festivos populares
Authors: Arranz Mínguez Conrado José
Published: July 2020

La tradición del huapango arribeño que se lleva a cabo en la Sierra Gorda de Querétaro y Guanajuato, y en la Zona Media de San Luis Potosí, se revela en la celebración de rituales festivos de carácter músico-poético, tanto civiles como religiosos, en donde la glosa conjuga la copla y la décima. La tradición se rige bajo la influencia de una serie de normas de carácter consuetudinario y oral, entre las cuales destacan el «reglamento» y el «compromiso». El presente artículo indaga en torno a la naturaleza jurídica de, lingüística y literaria de dicha normatividad; su interacción con otras normas de carácter externo a la fiesta; su influencia, tanto en la performance o ritual festivo –especialmente en la topada–, como en la creación poética. A partir de fuentes etnográficas (entrevistas y grabaciones de fiestas) y bibliohemerográficas, el objetivo es dilucidar el papel que juega dicha normatividad en la conservación y transformación de la tradición.
Rebuilding Trust in Broken Systems? Populist Party Success and Citizens’ Trust in Democratic Institutions
Authors: Mauk Marlene
Published: July 2020

What effect does the recent rise of populist parties harnessing an anti-system rhetoric have on political trust? Will citizens become disenchanted with and lose trust in the political system, or could populist party success even stimulate a growth of political trust? Arguing that populist parties may well be conceived as a corrective force giving voice to and addressing citizen concerns about the established political system, this contribution hypothesizes that populist party success will increase political trust among the general public, especially in countries lacking democratic quality, with weak corruption control, and meagre government performance. Empirically, it combines ParlGov data with survey data from the European Social Survey (2002–2016) as well as aggregate data from the Varieties-of-Democracy project and the World Development Indicators to investigate how political trust has changed in relation to the growing success of populist parties and how democratic quality, corruption control, and government performance have moderated this relationship in 23 European democracies. Its main findings indicate that, at least in the short run, political trust increases rather than decreases following populist party success and that this increase in trust is most pronounced in political systems that lack democratic quality, struggle with corruption, and deliver only meager government performance.
Disentangling How Populism and Radical Host Ideologies Shape Citizens’ Conceptions of Democratic Decision-Making
Authors: Heinisch Reinhard , Wegscheider Carsten
Published: July 2020

In this article, we aim to disentangle the extent to which citizens’ conceptions of democratic decision-making are shaped by populist attitudes or rather by radical left and right host ideologies. Following recent work by Landwehr and Steiner (2017), we distinguish four modes of decision-making embedded in different conceptions of democracy: trusteeship democracy, anti-pluralism, deliberative proceduralism, and majoritarianism. Drawing on data from Austria and Germany, we show that populism and radical host ideologies tap into different dimensions of democracy. While populism is primarily directed against representative forms of democratic decision-making, preferences for deliberative procedures and majority decisions appear entirely shaped by radical left and right host ideologies. Populism thus views decision-making based on the general will of the people as the only legitimate democratic procedure, whereas radical left and right host ideologies aim at involving the relevant group(s) of citizens. Further analyses of the interactions between populist attitudes and radical host ideologies confirm that the effects of populism remain robust and thus independent of the specific manifestations of radical host ideologies. These findings help to disentangle the causes of democratic discontent and to develop possible responses through democratic reforms that specifically and separately aim to mitigate populism and radical host ideologies.
The Effect of Parties on Voters’ Satisfaction with Democracy
Authors: Nemčok Miroslav
Published: July 2020

Electoral ‘winners’ (i.e., voters casting a ballot for a party included in the post-electoral government) are acknowledged to be more satisfied with democracy than supporters of opposition parties. However, little is known about the influence of parties and their specifics on the boost in satisfaction with democracy experienced by their voters. To address this question, the research utilizes 17 surveys from 12 countries included in the European Social Survey rounds 1–8, for which a government replacement took place during the survey period. This allows this research to employ discontinuity design and examine the effect of two attributes related to parties—differences in party vote shares, and voters’ feeling of closeness to a party. The findings suggest that these factors have a negligible influence on voters’ satisfaction with democracy and only scant evidence is found that closeness to a party tends to increase their satisfaction. When voters’ attitudes from before and after a government replacement are compared, changes in government do not seem to strike voters as a surprise and thus they do not cause any sudden and lasting changes in the general attitudes of electorates. Nevertheless, this indicates a novel contribution to the literature: the effect of losing needs some time to fully develop until it results in a decrease in satisfaction level. Based on these findings, the research concludes that when it comes to parties’ characteristics, it is primarily the government/opposition status which determines voters’ degree of satisfaction with democracy.