bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of social media marketing and e-wom on purchase intention of consumer goods buyers
Authors: Cuong Pham Hung 
Published: July 2021

The study mainly focuses on social media contents; connect of people (mainly existing and potential consumers), word of mouth (reviews and ratings) and their influence on purchase intention of the consumers for consumer goods products. Research This study has descriptive research design with a survey approach of collecting the data. The data collection instrument was a structured questionnaire constructed with the help of Likert scale. Data analysis has been done with the help of confirmatory factor analysis (CFA) followed by structural equation modeling (SEM). Three constructs namely Social Media connect of consumers, social media content and electronic word of mouth have a significant impact on purchase intention of the consumers. The constructs such as social media connect and social media contents have been introduced in this study. The constructs have been properly checked with the preconditions of validity and reliability.
NUEVOS ENFOQUES DE LA SEGURIDAD NACIONAL
Authors: MONCAYO GALLEGOS PACO 
Published: July 2021

El tema de la seguridad nacional requiere de un análisis objetivo, desapasionado e imparcial. En este trabajo se revisa el origen de la doctrina de seguridad nacional a la luz de los acontecimientos de la Guerra Fría y su difusión en Latinoamérica, con énfasis en la situación del Ecuador. Se analizan las nuevas teorías y escuelas surgidas desde fines del siglo anterior y en las dos primeras décadas del actual. Finalmente, se centra el trabajo en la influencia de los nuevos conceptos, en la planificación de la seguridad en en Ecuador, en los gobiernos del movimiento político Alianza País. Al final se presenta conclusiones.
VIOLENCIA, CONFLICTO, MIEDO E INSEGURIDAD
Authors: OJEDA LAUTARO 
Published: July 2021

Consciente de la complejidad y profundidad tanto teórica como práctica respecto de las posibles consecuencias de dos acontecimientos contemporáneos: secuestro y asesinato del equipo periodístico del diario El Comercio y las protestas, ocurridas durante los primeros 11 días de octubre del 2019, con el miedo, violencia criminal, conflicto e inseguridad, intentaré incursionar en dicha problemática.Este artículo se desarrolla en cinco momentos: 1. Teórico en el que intenta resumir los contenidos de los conceptos violencia, conflicto, miedo e inseguridad; 2. Narración de los hechos más destacados ocurridos en la frontera norte que terminó con el secuestro y muerte de los periodistas 3. Narrativa sucinta de los hechos de octubre, 2019; 4. Comentario de los Informes “provisionales" de la CIDH y en especial respecto de algunas conclusiones y recomendaciones; y 5. Interpretaciones y reflexiones finales.¿Porque comenzar con los conceptos?, porque al ser una representación mental, intelectual de un objeto del mundo exterior o interior, permitiría comprender en este caso los dos acontecimientos objeto del presente análisis e interpretación, así como separar las características propias del objeto en cuestión para quedarnos con las esenciales. Perspectiva epistemológica cuestionada por Martí-Baró quien enuncia de manera sencilla el papel de los conceptos en los siguientes términos: Que no sean los conceptos los que convoquen a la realidad, sino la realidad la que busque a los conceptos; que no sean las teorías las que definan los problemas, sino que sean los problemas los que reclamen y por así decirlo, elijan su propia teorización ía (2003:17)
CIBERATAQUES: DESAFÍOS EN EL CIBERESPACIO
Authors: ABAD WALBERTO ANTONIO 
Published: July 2021

El presente trabajo de investigación, tiene el propósito de determinar los desafíos y blancos críticos actuales y futuros en el ciberespacio del Ecuador, se inicia con el desarrollo de un análisis exploratorio del ciberespacio, ciberataques y ciberdefensa mediante el uso de fuentes primarias y datos estadísticos, se desarrolla un entorno introductorio, el progreso del ciberespacio con su aporte y empleo inadecuado a la sociedad, se define una aproximación a la conceptualización de la ciberdefensa, la traslación de los conflictos al ciberespacio, se identifican estadísticos de incidentes para tratarlos con una metodología cuantitativa, empleando la analítica predictiva mediante herramientas informáticas de aprendizaje automático o machine learning, cuyos resultados darán la identificación actual y futura de recursos críticos en el ciberespacio; los blancos críticos tendrán implicaciones en el entorno de seguridad y defensa del Ecuador.
LA URGENTE NECESIDAD DE PENSAR OPERACIONALMENTE
Authors: GNIESKO CHRISTIAN 
Published: July 2021

Existieron hechos recientes en américa latina que pusieron en la vidriera nuevamente a las Fuerzas Armadas, teniendo que actuar en operaciones sumamente delicadas, donde el riesgo era muy alto y el margen de error casi nulo.Observamos que las técnicas y procedimientos utilizadas no eran adecuadas para la administración de la crisis, junto a ello, el manejo de la información en redes sociales jugó un papel trascendente en su actuar. Se debe sumar, además, que la estructura conceptual de “toma de decisiones” utilizada, se basan en procedimientos de la pos 2da guerra mundial, totalmente atemporales.Por ello, el presente trabajo abordará una forma de pensar distinta a la actual , para ser usada en este tipo de crisis, trabajando de manera innovadora para poder presentar soluciones adecuadas con esquemas de toma de decisiones más acordes a los tiempos que se viven.Comenzará con la necesidad de pensar en las relaciones de los distintos niveles de la conducción en el manejo de las crisis, reflexionando sobre las responsabilidades e insumos a producir para cada uno de ellos.Luego nos describirá brevemente qué es el “arte y diseño operacional”, su empleo y virtudes para ser adoptado por las Fuerzas Armadas del Ecuador, finalizando con algunas propuestas necesarias para dotar a la organización de mayor eficiencia y actualización al estado del arte sobre la temática.
Work and Play During Covid-19
Authors: Jones Joe , Winder Jon 
Published: July 2021

The global pandemic and resultant lockdowns are challenging our traditional assumptions about the times and spaces of labour and leisure - but how were these norms established and why have they had such an enduring appeal? In this paper, we take a long view to investigate the philosophical and historical roots of the binary distinction between work and play and outline ways in which these long-held ideas are being increasingly challenged. As lockdown measures are relaxed, we urgently need to develop more nuanced conceptions of the spatial and temporal conditions of work and leisure to ensure a more equitable and compassionate post-lockdown world.
Ecological apocalypticism in Ella Hickson's Oil, Lucy Kirkwood's The Children and Duncan Macmillan's Lungs
Authors: Burton Andrew 
Published: July 2021

The vast spatio-temporal dimensions of global warming and ecological devastation are hyberobjects (Morton, 2013) which humans are able to compute but not directly see. This is problematic for dramatists and theatre makers whose work tends to focus on portraying more immediate emotions on a human scale. Diamond (2016) has written insightfully about a number of contemporary British plays which attempt to grapple with the “genre-bending” hyperobject of global warming, either by working within the limitations of conventional genres or by extending the boundaries of those genres. In this essay, I develop her theme by asking how dramaturgical form rather than genre may be harnessed in this task. I examine how Kirkwood exploits the naturalistic form in her play The Children to show the impacts of the hyperobject on the characters’ lives. I further examine how the open time, open place structure (pace Jeffreys, 2019) of Hickson’s reconfigured Brechtian epic Oil enables the playwright to connect human and ecological timescales. I explore how Macmillan has his dramaturgical cake and eats it by pioneering, in his play Lungs, a hybridised form which offers a highly affective audience experience, aligning human and more-than-human timescales. Finally, I theorise that playwrights and theatre makers might profitably experiment with such formal hybridisations in future attempts to dramatize the hyperobject’s ontological vastness.
When the Body Says No: The Experience of Vaginismus and the Validity of Female Pain
Authors: Haire Georgia 
Published: July 2021

Vaginismus first entered medical discourse in 1861 when Dr J Marion Sims linked symptoms of vaginal hypersensitivity to muscular spasms. Today, vaginismus is similarly defined by the NHS characterised as an involuntary tightening of muscles around the vagina whenever penetration is attempted. Although these medical descriptions do not encapsulate every experience of the condition, it is generally agreed that the condition makes penetration near impossible, and very painful. The use of tampons, penetrative intercourse, cervical examinations, and other activities become sources of shame and fear for sufferers. Vaginismus is neglected as it is an underdiagnosed condition, which sufferers often must treat themselves, away from medical support. It is contested by doctors, who do not believe that there is anything wrong with the sufferer. By taking the experience of vaginismus as my starting point, I argue that the medical response to vaginismus is shaped by wider cultural perceptions about the believability of female pain. Female pain is viewed not as fact, but as a misinterpretation of bodily events. This article highlights the issues that surround the disbelief of female pain in relation to vaginismus, and how such perceptions might be altered.

Key words: vaginismus, sexual pain disorders, sexual practice, women's medicine, heteronormativity
The Observers Observed: 'Reflections on making a film, The Day War Broke Out, with the Mass Observation Archive' by three PhD researchers
Authors: Chappell Elizabeth , King Simon , Baron-Bonarjee Dominique 
Published: July 2021

Elizabeth Chappell, Simon King and Dominique Baron-Bonarjee made a film, The Day War Broke Out, in the summer of 2019 as part of a CHASE film making training course led by film-maker Karen Boswall at The University of Sussex. The film focuses on the way in which the Mass Observation (MO) Archive came about. The film brings to life the materiality of the archive through voice, music, hand-written letters, historical objects and setting as well as through an interview with one of Mass Observation’s curators, Kirsty Pattrick.

But what can we understand from the stated intentions of MO’s founders for anonymous volunteer contributors to write diaries ‘so that their [the public’s] environment may be understood and thus constantly transformed.’? This article takes the view that the ‘single voice’, i.e. in this case the personal reflective narrative, can offer a ‘way in’ to understanding collective lived experience. Exploring the research questions through three case studies, it offers a dialogical approach to the parallel and overlapping questions of how past lived experience can be brought to life on film as well as how researchers can use materiality to access the context of lived experience. It asks, how does the creative exploration of the archive through film offer the possibility of a more open dialogue to occur between researchers and curators? And finally, how can film making open up new vistas and avenues for researchers to share findings as well as to transform their own field of research?
Iridoids from Stachys byzantina K. Koch (Lamb's Ears) and Stachys germanica L. (Downy Woundwort)
Authors: Háznagy-Radnai E. , Czigle Sz. , Máthé I. 
Published: July 2021

Abstract
Iridoids are a class of secondary metabolites found in a wide variety of plants. Iridoids are typically found in plants as glycosides, most often found to glucose. The genus Stachys L. is one of the largest genera of the Lamiaceae family, containing iridoids.

Aim
The aim of this study was the isolation and identification of iridoids from the aerial parts of Stachys byzantina K. Koch and Stachys germanica L.

Methods
For the isolation and identification of the iridoids, different chromatographic methods (NP-TLC, CPC and RP-HPLC) were used. The structures were established by one- and two-dimensional NMR and mass spectrometry, also.

Results
Iridoids (aucubin, harpagide, ajugoside and harpagoside) were isolated and identified by combination of different chromatographic methods from S. byzantina and S. germanica.

Conclusion

Stachys species may also be used as a potential source of iridoids.
Rapid and simple CZE-UV method for quality control of B1 and B6 vitamins in drugs and dietary supplements
Authors: Matuskova M. , Cizmarova I. , Chalova P. , Mikus P. , Piestansky J. 
Published: July 2021

Abstract
The application of hydrodynamically closed capillary zone electrophoresis combined with convenient ultraviolet (UV) detection allows fast, simple, environmentally friendly and cost-effective analysis of ions or ionisable molecules. This technique has been used to determine two selected B vitamins (thiamine, pyridoxine) in various drug formulations. The developed method was characterised by excellent validation parameters, such as linearity, precision, accuracy, limit of detection and limit of quantification. The total time of analysis was lower than 13.5 min. The results indicate that the method is suitable for implementation in routine quality control of selected B vitamins in pharmaceutical and food samples.
Human Body Movement Coupling Model in Physical Education Class in the Educational Mathematical Equation of Reasonable Exercise Course
Authors: Pang Tao 
Published: July 2021

Abstract
In physical education class, the movement of the human body requires multiple joints to cooperate, and a multi-link system coupling is presented. In the teaching of physical education curriculum, the impact of the force received by students jumping up and down shows the characteristics of the non-linear system of physics and mathematics. Aiming at the movement process of jumping up and down, we established a joint mathematical equation model of the motion state of the human lower limb joints. We use a non-linear system to solve the mathematical model of the joint force coupling problem of the human body jumping up and down.
Characteristics of Mathematical Statistics Model of Student Emotion in College Physical Education
Authors: Wang Beibei , Al-Barakati Abdullah , Hasan Hafnida 
Published: July 2021

Abstract
The influence of learning emotions on learning behaviors in college physical education is directly reflected in learning efficiency. Based on this research background, the paper applies a mathematical, statistical model to structural equation modeling of the emotional situation of students in a school's physical education curriculum. The study results found that college students have lower positive emotional attitudes towards college physical education courses. Thus, students’ mood is affected by the. For this reason, we should eliminate students’ resistance and fear of college physical education courses and promptly correct students’ unhealthy learning emotions about college physical education courses. In this way, it helps students correct their negative feelings about college physical education courses.
Numerical Simulation Analysis Mathematics of Fluid Mechanics for Semiconductor Circuit Breaker
Authors: Liu Danjuan , He Wei 
Published: July 2021

Abstract
The paper derives the current-voltage relationship in the semiconductor circuit breaker based on the equation of fluid mechanics which has application for safe and water access. Then, the paper proposes a Newton iterative method based on the finite element analysis method to solve the nonlinear algebraic equation relationship in the semiconductor circuit breaker. At the same time, the paper constructed a coupled numerical model based on the hydrodynamic equations and applied it to the pulse current prediction. Experiments have proved that the algorithm can realize large-scale open-circuit switching current forecast, and the algorithm has high efficiency and accuracy.
Constructing Artistic Surface Modeling Design Based on Nonlinear Over-limit Interpolation Equation
Authors: Cheng Tan , Alassafi Madini O. , Muwafak Bishr Muhamed 
Published: July 2021

Abstract
The digital and physical methods of establishing minimal curved surfaces are the basis for realizing the design of the minimal curved surface modeling structure. Based on this research background, the paper showed an artistic surface modeling method based on nonlinear over-limit difference equations. The article combines parameter optimization and 3D modeling methods to model the constructed surface modeling. The research found that the nonlinear out-of-limit difference equation proposed in the paper is more accurate than the standard fractional differential equation algorithm. For this reason, the method can be extended and applied to the design of artistic surface modeling.
The Model of Sugar Metabolism and Exercise Energy Expenditure Based on Fractional Linear Regression Equation
Authors: Gao Jinchao , Alotaibi Fahd S , Ismail Ragab Ibrahim. 
Published: July 2021

Abstract
Carbohydrate metabolism can provide energy for human exercise. However, different exercise intensities will consume different amounts of energy. For this reason, the paper uses a fractional linear regression equation to study the characteristics of carbohydrate metabolism and energy consumption of other groups of human beings with the same oxygen consumption during exercise. In addition, the thesis measures energy consumption during exercise and body recovery by analyzing gas metabolism methods. As a result, we found that the sugar, fat metabolism, and energy consumption of heavier volunteers under the same exercise intensity were lower than those of regular weight volunteers. Thus, the fractional linear regression method can help us analyze the relationship between glucose metabolism and exercise energy.
Passive and Active Biomonitoring of Atmospheric Aerosol with the Use of Mosses
Authors: Słonina Nikola , Świsłowski Paweł , Rajfur Małgorzata 
Published: July 2021

Abstract
The aim of the carried out research was passive and active biomonitoring of woodlands in the Opole province. Pleurozium schreberi mosses were used during the research, in which the following heavy metals concentrations were determined: Mn, Fe, Ni, Cu, Zn, Cd and Pb. Concentrations were determined with absorption atomic spectrometry (AAS). On the basis of the carried out research, concentrations of heavy metals in moss samples used in the passive and active biomonitoring methods were compared. The obtained results indicate that Pleurozium schreberi mosses can be successfully used in both passive and active biomonitoring, however, these methods should not be used interchangeably in a defined study area. On the basis of carried out research it was determined that the applied biomonitoring methods can be supplementary.
The Issue of Shading Photovoltaic Installation Caused by Dust Accumulation on the Glass Surface
Authors: Rudnicka Małgorzata , Klugmann-Radziemska Ewa 
Published: July 2021

Abstract
The issue of accumulation of dust and other pollutants on the surface of photovoltaic modules was thoroughly analysed over the years. One of the first surveys in this field of knowledge linked pollutant accumulation on the module surface with transmittance loss of its glass covering, which leads to lessened amount of solar radiation reaching solar cells. First stage of this accumulation process is linear transparency loss, and second stage - molecule agglomeration and settlement some grains on the already existing layer of dust. Additionally, the pace of working parameters reduction for photovoltaic installation is influenced by the type of dust itself. Molecules with smaller grains cover the surface much more densely, therefore limiting the amount of light passing though the top glass layer far more than molecules with bigger grains. The aim of the carried out study was to find the relationship between dust surface density and change in electrical parameters. Such approach makes it possible to compare electrical and physical parameters of different photovoltaic modules. Additionally, glass coverage itself was noted to have a significant impact on the overall decrease in working parameters of PV modules.
Volumes Ratio Optimization in a Cascade Anaerobic Digestion System Producing Hydrogen and Methane
Authors: Chorukova Elena , Simeonov Ivan , Kabaivanova Lyudmila 
Published: July 2021

AbstractAs focus of humans has turned to renewable energy, the role of anaerobic digestion has started to become economically viable. Reducing the volume of agro-wastes for the generation of gaseous and liquid fractions with energy carriers and valuable products is an enormous challenge. A two-stage anaerobic digestion process consisting of hydrogenic stage followed by methanogenic stage was studied in a laboratory scale. Five simple nonlinear models of this continuous cascade process were studied in order to determine the optimal ratio of working volumes of bioreactors, in view of maximising energy production. This ratio was reported for all adopted models. The optimal ratio (maximal energy production criterion) depends of the adopted mathematical model. Static characteristics of both bioreactors were obtained usingSymbolyctoolbox ofMatlab.Numerical experiments concerning dynamics of the main variables of both bioreactors for these models usingSimulinkofMatlabare performed for different step changes of the dilution rate of the first bioreactor, together with the influence of the substrate (acetate) inhibition for one of the models. The value of the constant of inhibition plays an important role on the admissible interval of the dilution rate. The developed idea could serve for optimally designed experiments of anaerobic digestion for production of hydrogen and methane from lignocelluloses wastes (wheat straw) in two phase process.
Heat Recovery of Compost Reactors: Field Study of Operational Behaviour, Heating Power and Influence Factors
Authors: Jaschke Nele , Schmidt-Baum Torsten 
Published: July 2021

Abstract
This study evaluates the common process and set-up design of a static compost bioreactor for heat recovery. A technology, which fits the goal of a sustainable, growing bioeconomy which combines the utilization of compost heat and compost material. Interest on this technology has been growing the last years but precise data of pilot scale reactors is rare. Data is required to adjust the process for custom needs and further technical development. Therefore, lignin-cellulose based biomass was composted in unaerated cylindrical compost reactors size 20 to 70 m3 for 140 days. The biomass comes with C:N ratio of about 25:1, water content of 43-48 %, organic matter content of 40.6 % d.m. and calorific value of 8.3 MJ/kg d.m. Spatial distribution of temperature and gas concentration (oxygen, carbon dioxide, methane) within the reactor shows methane production of the anaerobic core area. Maximum thermal power of 5.2 kW from a 63 m3 reactor with average temperature of heating flow about 40 °C was reached. Maximum recovered heating power of 4.8 MJ/kg d.m. was calculated for an operation of 6 month. This corresponds to 50 % of the measured calorific value. Biggest influence factors detected on the recovered heating power of the pilot scale reactor has been the size of reactor, the set up quality and the control of heat exchanger. The spatial correlation between heat production and aerobic digestion suggests a technical development in terms of aeration.