bluuebunny/crossref_metadata_2025 huggingface dataset:
Industria extractiva y la emergencia del conflicto social en la comunidad de Hualla
Authors: Maldonado Valenzuela Mario
Published: January 2021

El trabajo explora la emergencia del conflicto social en la comunidad quechua de Hualla, a raíz de la exploración minera en el territorio comunal. Este episodio generó sentidos contradictorios en la lógica de los pobladores, unos interesados en la empresa extractiva e ilusionados con el discurso de progreso y desarrollo que aglutinó sentidos de oportunidad para mejorar sus condiciones de vida. Mientras, los contarios a la inversión extractiva se movilizan en defensa y el cuidado del medio ambiente. Ambas posturas debilitaron la organización comunal y familiar de la comunidad. Concluyendo el conflicto en el retiro de la empresa extractiva.
Biomarcadores desnutrición, anemia y parasitismo asociados al coeficiente intelectual en niños Institución Educativa Yanama, Ayacucho 2018
Authors: Llamocca Machuca Marizabel , Ramírez Roca Emilio , Castilla Torres Nancy
Published: January 2021

Los biomarcadores son medidas realizadas en niveles celulares de organización biológica, en los cuales se desarrolla medidas sensibles como señales de alarma temprana, por ello se estableció el estudio con el objetivo de Determinar los biomarcadores de desnutrición, anemia y parasitismo asociados al coeficiente de desarrollo intelectual en niños de 3 a 5 años de la Institución Educativa de Yanama Ayacucho 2018, el diseño metodológico fue cuantitativo, inductivo explicativo correlacional, transversal prospectivo; la población estuvo constituida por el total de niños de 3 a 5 años de la institución educativa de Yanama, la muestra fue 44 niños según criterios de inclusión, muestreo no probabilístico; la recolección fue observación, el instrumento utilizado fue guía de observación. Los resultados encontrados entre la asociación de biomarcadores y el coeficiente de desarrollo intelectual, 13.6% tiene desnutrición, 9.1% anemia y 27.3 % parasitosis asociados al riesgo del coeficiente de desarrollo intelectual; concluyéndose que existe asociación entre los biomarcadores de desnutrición, anemia y parasitosis con el coeficiente de desarrollo intelectual.
Nutrición materna y peso del recién nacido. Hospital Regional de Ayacucho. 2000-2017
Authors: Ramírez Quijada Brígida , Carhuayo Luján Silvia
Published: January 2021

El objetivo del estudio fue determinar la asociación del estado nutricional materno con los factores obstétricos, biosociales y perinatales y su influencia en el peso del recién nacido Material y Método observacional, retrospectivo, analítico y transversal comparativo. Resultados Se evaluó el estado nutricional a través del Índice de Masa Corporal Pregestacional de 43,140 gestantes atendidas en el Hospital Regional de Ayacucho del 2000 al 2017, encontrando que el 69,5% presentó estado nutricional Normal, 9,0% Bajo peso, 13,9% Sobrepeso y 7,6% Obesidad. En los recién nacidos con Bajo peso, se evidenció un mayor porcentaje de madres (11,8%) con Bajo nivel nutricional; en tanto que en el grupo de productos macrosómicos se registró un mayor porcentaje de madres con Sobrepeso (23,1%) y Obesidad (21,6%). El estado nutricional de la madre está asociado al peso del recién nacido en los diferentes grupos de edad materna, de grado de instrucción (p= 0,00) y estado civil (excepto la modalidad otro), así como en cada categoría de la paridad y edad gestacional. La preeclampsia leve, severa e infección de tracto urinario, no afecta la asociación entre el estado nutricional materno y el peso del recién nacido, mientras que en la diabetes, retardo de crecimiento intrauterino, preeclampsia moderada y eclampsia, no se da dicha asociación. Conclusiones Se comprobó la hipótesis de que el estado nutricional materno influye en el peso del recién nacido.
PENGARUH MENONTON ACARA BERBAHASA INGGRIS, LINGKUNGAN TEMPAT TINGGAL, DAN DUKUNGAN ORANG TUA TERHADAP HASIL BELAJAR BAHASA INGGRIS SISWA
Authors: Wahyu Wahyu
Published: January 2021

Penelitian ini bertujuan untuk mendeskripsikan pengaruh menonton tayangan televisi berbahasa Inggris terhadap hasil belajar siswa kelas VIII SMP/MTs di Kecamatan Pamarayan. Penelitian ini merupakan penelitian kuantitatif dengan metode ex post facto. Populasi penelitian ini adalah seluruh siswa kelas VIII Sekolah Menengah Pertama dan sederajat di Kecamatan Pamarayan yang terdiri atas 671 siswa. Teknik pengambilan sampel yang digunakan adalah simple proportional random sampling. Temuan penelitian adalah sebagai berikut. (1) Terdapat pengaruh yang positif menonton tayangan televisi berbahasa Inggris terhadap hasil belajar Bahasa Inggris siswa dengan nilai F regresi sebesar 17,154 dan signifikasi 0,000 (p < 0,05). (2) Terdapat pengaruh positif lingkungan tempat tinggal terha- dap hasil belajar Bahasa Inggris siswa dengan nilai F regresi sebesar 19,331 dan signifikansi 0,000 (p< 0,05). (3) Terdapat pengaruh positif dukungan orang tua terhadap hasil belajar Bahasa Inggris siswa dengan nilai F regresi sebesar 24,651 dan signifikansi 0,000 (p < 0,05). (4) Terdapat pengaruh positif menonton tayangan televisi berbahasa Inggris, lingkungan tempat tinggal, dan dukungan orang tua terhadap hasil belajar Bahasa Inggris siswa secara bersama-sama dengan nilai F regresi sebesar 12,606 dan signifikansi pada 0,000 (p < 0,05).
Forensic Engineering Analysis Of A Kite Surfing Accident
Authors: Armstrong Jeffrey D.
Published: January 2021

The Investigation Of Recreational Accidents Often Involves An Analysis Of Unique Circumstances And Unique Equipment Not Commonly Found In More Traditional Forensic Engineering Investigations. In The Case Of The Kite Surfing Accident Which Is The Subject Of This Paper, It Was Alleged That The Quick-Release Mechanism Failed To Function Properly, Which Caused The User To Be Dragged To A Rocky Shore Causing Injuries. The Engineer Had To Familiarize Himself With The Various Components Of The Kite And Harness System, How The Interaction Of Those Components Under The Control Of The User Led To The Accident, And How The Accident Could Have And Should Have Been Avoided. Conditions Specific To The Subject Accident Were Investigated, Including The User Familiarity With Equipment And Emergency Protocols, Wind Patterns Present At The Time Of The Accident, And Geography Of The Accident Location. Finally, Research Revealed That There Were No Standards Or Regulation Of The Kite Surfing Industry In The United States, But That The Manufacturers Of The Equipment Claimed Compliance With A Foreign Standard. The Equipment Was Then Tested To Determine Whether It Was In Compliance With That Foreign Standard. This Paper Will Address The Proper Operation Of The Kite Surfing Equipment, And Will Describe The Testing That Was Performed By The Engineer To Determine The Effectiveness Of The Quick-Release Component Of The System. It Also Addresses Actions That Were Taken By The User To Attempt Avoidance Of The Accident.
Forensic Engineering Analysis of a Mobile Refuse Collection Vehicle Accident
Authors: Peake Drew
Published: January 2021

As shown in this case, lack of attention to engineering, administrative, and management controls can lead to serious injury or death. Engineering controls include design or redesign of equipment, tools, or the workplace to reduce workers’ exposure to hazards. Administrative controls are perhaps better characterized as workplace controls, which include changing work procedures, written safety policies and rules, supervision or schedules, and training, in order to reduce the duration, frequency, or severity of exposure. Management controls are a systematic effort by management to compare performance to predetermined standards, plans, or objectives, to determine if performance meets expectations and to take remedial action as indicated to reduce worker exposure to hazards. Because engineering, administrative, or management controls were not used in this case, a community service worker fell from a mobile refuse collection vehicle and suffered serious injury when his head struck the pavement.
Forensic Considerations Regarding Traction and Tribometry of Bathing Surfaces
Authors: Leffler John , Blanchette Mark
Published: January 2021

In 1974, the federal Consumer Product Safety Commission (CPSC) funded a study of injury patterns involving bathing surfaces. The study found the majority of injuries were due to slips and falls. The data from the CPSC-driven tribometry research was used to develop (with the cooperation of bathing surface manufacturers) a standardized test specification and minimum traction threshold. The standard that resulted in 1979, ASTM F462, was a positive step forward — but over 36 years the shortcomings of this long-obsolete standard have become increasingly evident. Nevertheless, F462 remains the sole codified standard for bathing surface traction in the United States. This paper will discuss the limitations of F462, the use (and misuse) of the standard in claims resolution and litigation, the efforts to modernize F462, and some considerations for investigating bathing surface incidents.
Forensic Engineering Investigation of PVC Piping Failure in a Multistory Condominium Building
Authors: Certuse John
Published: January 2021

Polyvinyl chloride (PVC) piping systems in larger commercial buildings are subjected to greater stresses due to normal building movement when segment length, diameter, and schedule are increased in comparison to smaller residential installations. The likelihood for increased stresses in these system installations must be recognized and accommodated for in the initial piping system design. Performance aspects, such as thermal expansion and building settling, must be considered as well as piping configurations and hanger support placement. This paper addresses the investigation methodology used to identify the causes of chronic building construction defects that resulted in water and mold damage to a recently renovated multistory condominium building.
Gas Well Integrity and Associated Gas Migration Investigations in the Marcellus Shale
Authors: Arthur J. Daniel
Published: January 2021

The Marcellus Shale is one of the largest natural gas fields in the world and has been the site of a massive natural gas development effort involving hundreds of oil and gas companies. With the onslaught of the “shale revolution,” developers moved into states like Pennsylvania and began drilling/completing natural gas wells by the hundreds. This development occurred so rapidly that attention to issues such as wellbore natural gas intrusion was not initially given the priority it demanded in all cases. This led to instances of alleged natural gas migration and impacts to groundwater supplies in several areas of the region. Although there has been an onslaught ofevaluations geared toward the study of groundwater contamination, the author has researched the natural gaswells themselves. Based on thousands of wellbore integrity studies in the Marcellus and other worldwide shale regions, this paper will summarize the forensic processes, analysis methods, and approaches used in assessing wellbore integrity as part of a natural gas migration investigation. The paper will also present details that pertain to remedial alternatives and approaches to wells requiring attention.
Forensic Engineering Analysis: Biomechanics is an Engineering Discipline
Authors: Lee William E.
Published: January 2021

Forensic engineering experts with expertise in the field of biomechanics are frequently retained to conduct a biomechanical analysis of some injury-related incident. This may involve the areas of injury event reconstruction, what forces may have been involved, how the person responded to these forces, and whether injury mechanisms consistent with the claimed injuries were (or were not) established during the incident. It is the view of someengineering biomechanics experts that the presentation of injury mechanism-related opinions is based on biomechanics (a subject of engineering) and is not intended to serve as an opinion regarding injury causation (i.e., was the claimant injured as a result of the described incident). Attorneys have challenged the ability of forensic engineering biomechanics experts to offer injury mechanism-related opinions (and often the other associated areas described above) based on a theory that “biomechanics” is not a subject of engineering, butrather a subject of medicine, and, in turn, the engineering expert should not be allowed to present such opinions. This paper explores the validity of this claim, focusing on the academic evidence. More specifically, academic programs within the United States in both the areas of engineering and medicine were examined to find evidence of formal classes in the area of biomechanics, dedicated biomechanics research activities, current textbooks and references (focusing on author affiliation), and other academic-related activities.
Forensic Engineering Analyses of a Home Fire
Authors: Vasudevan R. Vasu , Britton Jeremy
Published: January 2021

A fire had occurred in a single-family home where a family of four was living. The family was asleep whenthe daughter woke up, saw smoke in her bedroom, and screamed. The daughter and father exited by breaking through a bedroom window, but the other two family members were overcome by the fire before exiting (and were later found deceased by the fire department). None of the witnesses heard a smoke detector (activation), and brief searches by investigators did not find any evidence of either the detector bracket or other remains. Forensic engineering analyses of the preserved evidence were performed, and Fire Dynamics Simulator (FDS) software was used to analyze multiple fire origins, predicted smoke-detector activation, and egress times. Fire growth, thermally induced electrical failure (THIEF), glass breakage, smoke-detector activation, barrier failure, and tenability (CO, temperature and visibility) were calculated. The FDS analyses were performed using a combination of factual information, timelines, fuels derived from the Fire Burning Item Database (FireBID), analyses of photographs, and witness depositions, and were verified and validated. The analyses/methodologies were explained to the trier of the facts (jury), and the results were presented; namely, the most probable origin and cause (ignition) of the fire, smoke-detector-activation times, and egress times for the residents.
Forensic Engineering Analysis of an Electrical Substation Fire in a Manufacturing Plant in Brazil
Authors: Cueva-Eguiguren Mauricio
Published: January 2021

A cable splice failure in one of the cables associated with one of the 6 MVAR capacitor banks in an electrical substation at a manufacturing plant in South America caused a fire in the 88/4.16kV electrical substation. The fire caused the plant to stop production for approximately 29 days while temporary repairs were made. Operating two shifts per day/seven days a week, and stopping for maintenance once a year, the manufacturing production generates approximately $750,000 in revenue per day. The cable splice failure caused an electrical short circuit in the substation 4.16kV distribution system for approximately 120 seconds. The cable splice failure ignited the adjacent cables in the cable tray, causing damage to various sections of the 4.16kV cables, three 88kV disconnect switches, and four 88kV – 4.16kV transformers. The cable fire in the electrical substation resulted in property damages and business interruption losses with an estimated value of $20 million. The four 88kV – 4.16kV transformers that were in service at the time of the substation fire were exposed to voltage transients and electromagnetic forces produced by the short-circuit currents for approximately120 seconds.
Forensic Engineering Investigation of a Fatal Farm Tractor Incident
Authors: Couture Daniel P.
Published: January 2021

A farm owner was found unresponsive with crushing head injuries on his property in rural Ontario. His small farm tractor was found 60 meters away down a small incline with the engine running and transmission in neutral. The owner’s son alleged that when the parking brake was engaged (with the engine running and transmission in neutral), this tractor’s parking brake would “pop out,” allowing the tractor to move. Field tests were conducted on the tractor to attempt to duplicate the scenario and to determine if the alleged sequence of events was plausible. Components of the parking brake and one exemplar were assessed with specialized metrology to determine whether they were within the manufacturing specifications on the blueprint. A 3-D CAD model of fit was created, and several variances were identified between the parts and the factory drawing. The results of the analysis concurred with the scenario that these variances led to the disengagement of the parking brake and operator fatality.
Forensic Engineering Analysis of Fire Caused by Control Failure Due to Deviation from Patented Design
Authors: Certuse John
Published: January 2021

A fire in a multi-unit condominium complex occurred, causing the building to be a complete loss. The point of the fire’s origin was traced to a recently drained hot tub’s electric heater. Examination of an exemplar heater revealed that a key safety-related control feature was manufactured in a configuration inconsistent with its original patent drawings in a way that would have lessened its performance for what may have been cost of manufacturing considerations. This change also brought into question whether the control that was reportedly tested at Underwriters Laboratory was one designed to the patent specifications. The manufacturer has since discontinued use of the control for subsequent installations.
Forensic Engineering Analysis of the Alleged Failure of an Emergency Vehicle Traffic Light Preemption System
Authors: Peruzzi Robert
Published: January 2021

This case involved a fatal collision between a police vehicle (operated by a police officer) and a non-police vehicle (operated by a civilian). With lights and sirens activated, the officer in pursuit ran a red light and crashed into the civilian’s vehicle in an intersection whose traffic light controller included an emergency vehicle preemption system. The civilian driver was mortally injured, and died the next day. The estate of the deceased driver sued the police officer, municipal police department, and manufacturer of the emergency vehicle preemption system. The author was retained by counsel for the estate of the deceased to assist in the case against the manufacturer of the emergency vehicle preemption system and municipality. The evidence showed that the preemption system was working properly, but that the system’s confirmation lights had been improperly programmed. A maximum speed was calculated at which a preempted green light for emergency drivers would be assured. Event logs in the police vehicle showed that the police officer was driving too fast for the traffic light controller to cycle through its sequence before the officer reached the intersection.
Forensic Engineering Investigation of a Furnace Oil Supply Line Fitting Leak
Authors: Couture Daniel P
Published: January 2021

A basement oil leak was reported to a service company, which immediately replaced a supply line SAE 37° fitting body while leaving the flared copper lines in place. An environmental remediation claim was later made against this service company, alleging improper installation of new supply lines within the prior year. Fuel delivery records and heating degree day records were analyzed, revealing a consumption rate discrep-ancy versus the homeowner’s narrative. An experimental apparatus was designed to evaluate leak rates for flared fittings in tightened and partially loosened states. The modeled expected consumption rate results inferred tampering with the fittings several days prior to the leak report. The experimental technique and consumption rate analysis withstood a Daubert challenge for relevance at the mediation conference.
Forensic Engineering Analysis of Upper Extremity Nerve Entrapment Injury Mechanisms as Related to Rear-End Collisions
Authors: Lee William
Published: January 2021

Nerve entrapments of the median nerve, i.e., carpal tunnel syndrome (CTS) and the ulnar nerve, i.e., cu-bital syndrome (CT) are relatively common, reflecting traumatic and atraumatic mechanisms. Claims of such injuries in relation to rear-end collisions (particularly low-velocity or < 10 mph collisions) are often contested by the defense, acknowledging that there is no obvious relationship between the collision and the claimed inju-ries. Of the collision types (frontal, side, rear-end), it is the least clear how a rear-end collision can establish mechanisms for such injuries. Direct blunt trauma to the carpal tunnel region or the cubital tunnel region are unlikely in a rear-end collision. Also, “stretch” injuries due to hypermotion of either the wrist or elbow are unlikely, reflecting occupant kinematics, vehicle interior geometry, and other factors. A case study involving CTS and CT claims as a result of a low-velocity rear-end collision will be presented.
Forensic Engineering Analysis of Residential Underdrain Design Methodologies, Performance, and Failures
Authors: Nelson Karen , Fronapfel Edward
Published: January 2021

In 2014, the basement of a single-family home in a residential subdivision flooded. The homeowner’s insurance company engaged an engineer to conduct forensic investigations, which ultimately determined that the resultant flooding was caused by blockage of an underdrain system to which the home was connected. This system included a main line in the street and a lateral that connected the underdrain to the home’s foundation drain. Subsequent to this event, other homes in the subdivision reported flooding in the basements and crawlspaces. The author was engaged by the subdivision homeowners association (Common Interest Ownership Community or CIOC). The CIOC’s declarations and recorded documents contained no information regarding the existence of the underdrain system. In addition, there was no clear information about the ownership or maintenance responsibility. The author’s field investigations determined the underdrain was not constructed to the applicable minimum standards, and the developer did not provide adequate flow capacity for the number of homes served by the underdrain. The CIOC entered into litigation against the developer, and the author evaluated issues associated with the design, construction, transition, and maintenance of the underdrain system.
Forensic Engineering Investigation of a Pipe Joint Tester Explosion
Authors: Keefe William
Published: January 2021

A construction laborer was killed while operating a pipe joint tester, which was used to test joints between sections of newly installed sewer pipe. The joint tester contained a donut-shaped rubber bladder, which was inflated with compressed air to seal against the inside of the pipe joint during the test. During a pipe joint test, the pipe joint tester bladder exploded without warning. The joint tester operator was fatally injured when he was struck by pipe joint tester components and the air blast. A forensic engineering investigation was conducted to determine the role of the design and construction of the pipe joint tester in the cause of the incident.
An approach to minimize aircraft motion bias in multi-hole probe wind measurements made by small unmanned aerial systems
Authors: Al-Ghussain Loiy , Bailey Sean C. C.
Published: January 2021

Abstract. A multi-hole probe mounted on an aircraft provides the air velocity vector relative to the aircraft, requiring knowledge of the aircraft spatial orientation (e.g., Euler angles), translational velocity and angular velocity to translate this information to an Earth-based reference frame and determine the wind vector. As the relative velocity of the aircraft is typically an order of magnitude higher than the wind velocity, the extracted wind velocity is very sensitive to multiple sources of error including misalignment of the probe and aircraft coordinate system axes, sensor error and misalignment in time of the probe and aircraft orientation measurements in addition to aerodynamic distortion of the velocity field by the aircraft. Here, we present an approach which can be applied after a flight to identify and correct biases which may be introduced into the final wind measurement. The approach was validated using a ground reference, different aircraft and the same aircraft at different times. The results indicate a significant reduction in wind velocity variance at frequencies which correspond to aircraft motion.
Physical versus economic water footprints in crop production: a spatial and temporal analysis for China
Authors: Yang Xi , Zhuo La , Xie Pengxuan , Huang Hongrong , Feng Bianbian , Wu Pute
Published: January 2021

Abstract. A core goal of sustainable agricultural water resources management is to implement a lower water footprint (WF), i.e. higher water productivity,
and to maximize economic benefits in crop production. However, previous studies mostly focused on crop water productivity from a single physical
perspective. Little attention is paid to synergies and trade-offs between water consumption and economic value creation of crop production.
Distinguishing between blue and green water composition, grain and cash crops, and irrigation and rainfed production modes in China, this study
calculates the production-based WF (PWF) and derives the economic value-based WF (EWF) of 14 major crops in 31 provinces for each year over
2001–2016. The synergy evaluation index (SI) of PWF and EWF is proposed to reveal the synergies and trade-offs of crop water productivity and its
economic value from the WF perspective. Results show that both the PWF and EWF of most considered crops in China decreased with the increase in crop
yield and prices. The high (low) values of both the PWF and EWF of grain crops tended to cluster obviously in space and there existed a huge difference
between blue and green water in economic value creation. Moreover, the SI revealed a serious incongruity between PWFs and EWFs both in grain and
cash crops. Negative SI values occurred mostly in north-west China for grain crops, and overall more often and with lower values for cash crops.
Unreasonable regional planting structure and crop prices resulted in this incongruity, suggesting the need to promote regional coordinated
development to adjust the planting structure according to local conditions and to regulate crop prices rationally.
Kinematic synthesis method and eccentricity effects of a Stephenson mechanism
Authors: Tuleshov Amandyk , Halicioglu Recep , Shadymanova Azhar , Kuatova Moldir
Published: January 2021

Abstract. When implementing the technological process on crank presses, it is
necessary to provide a predetermined working cycle of the slider motion:
fast lifting, dwell, and slow lowering. The cycle cannot be realized without
controlling the motor. In addition, using controllable motors increases the
manufacturing cost. Due to the geometric and kinematic capabilities of the
mechanism, changing the kinematics of the working link is the best choice.
Thanks to the use of the Stephenson II mechanism, the slider skew is
eliminated due to the parallel connecting rods and the increased area of
slider contact. This study presents a numerical method for kinematic
synthesis of the Stephenson mechanism that has kinematic advantages. The
method is based on mean square deviation which is the minimizing of an
objective function. Thanks to the proposed synthesis method, approximate
dwell movement can be performed when the slider is on the bottom dead
center. In this study, values of the crank length and parallel connecting
rods' lengths, angular coordinates of the crank and connecting rods, and the
eccentricity of the guide slider relative to the crank rotation axis were
obtained. It is observed that eccentricity affects the lower forward and
higher backward speed of the slider. The kinematic results of the slider
movement are comparatively presented in this article.
High resolution stochastic downscaling method for ocean
forecasting models and its application to the Red Sea dynamics
Authors: Shapiro Georgy I. , Gonzalez-Ondina Jose M. , Belokopytov Vladimir N.
Published: January 2021

Abstract. High-resolution modelling of a large ocean domain requires significant computational resources. The main purpose of this study is to develop an efficient tool for downscaling the lower resolution data such as available from Copernicus Marine Environment Monitoring Service (CMEMS). Common methods of downscaling CMEMS ocean models utilize their lower resolution output as boundary conditions for local, higher resolution hydrodynamic ocean models. Such methods reveal greater details of spatial distribution of ocean variables; however, they increase the cost of computations, and often reduce the model skill due to the so called double penalty effect. This effect is a common problem for many high-resolution models where predicted features are displaced in space or time. This paper presents a Stochastic Deterministic Downscaling (SDD) method, which is an efficient tool for downscaling of ocean models based on the combination of deterministic and stochastic approaches. The ability of the SDD method is first demonstrated in an idealised case when the true solution is known a priori. Then the method is applied to create an operational eddy-resolving Stochastic Model of the Red Sea (SMORS) with the parent model being the eddy-permitting Mercator Global Ocean Analysis and Forecast System. The stochastic component is data-driven rather than equation-driven and applied to the areas smaller than the Rossby radius, where distributions of ocean variables are more coherent. The method, based on objective analysis, is similar to what is used for data assimilation in ocean models, and stems from the philosophy of 2D turbulence. The SMORS model produces higher resolution (1/24th degree latitude mesh) oceanographic data using the output from a coarser resolution (1/12th degree mesh) parent model available from CMEMS. The values on the high-resolution mesh are computed under condition of minimisation of the cost function which represents the error between the model and true solution. The SMORS model has been validated against Sea Surface Temperature and ARGO floats observations. Comparisons show that the model and observations are in good agreement and SMORS is not subject to the ‘double penalty’ effect. SMORS is very fast to run on a typical desktop PC and can be relocated to another area of the ocean.
New insights into radiative transfer within sea ice derived from autonomous optical propagation measurements
Authors: Katlein Christian , Valcic Lovro , Lambert-Girard Simon , Hoppmann Mario
Published: January 2021

Abstract. The radiative transfer of shortwave solar radiation
through the sea ice cover of the polar oceans is a crucial aspect of energy
partitioning at the atmosphere–ice–ocean interface. A detailed understanding
of how sunlight is reflected and transmitted by the sea ice cover is needed
for an accurate representation of critical processes in climate and
ecosystem models, such as the ice–albedo feedback. Due to the challenges
associated with ice internal measurements, most information about radiative
transfer in sea ice has been gained by optical measurements above and below
the sea ice. To improve our understanding of radiative transfer processes
within the ice itself, we developed a new kind of instrument equipped with a
number of multispectral light sensors that can be frozen into the ice. A
first prototype consisting of a 2.3 m long chain of 48 sideward planar
irradiance sensors with a vertical spacing of 0.05 m was deployed at the
geographic North Pole in late August 2018, providing autonomous, vertically
resolved light measurements within the ice cover during the autumn season.
Here we present the first results of this instrument, discuss the advantages
and application of the prototype, and provide first new insights into the
spatiotemporal aspect of radiative transfer within the sea ice itself. In
particular, we investigate how measured attenuation coefficients relate to
the optical properties of the ice pack and show that sideward planar
irradiance measurements are equivalent to measurements of total scalar
irradiance.
Institutional Adoption of Blended Learning: Analysis of an Initiative in Action
Authors: Groen Jovan , Ghani Shehzad , Germain-Rutherford Aline , Taylor Maurice
Published: January 2021

This instrumental case study explored some preliminary impacts of a 7-year blended learning initiative (BLI) at a medium sized Canadian university on student learning. Building on the Community of Inquiry (CoI) framework, two research questions directed the investigation: (1) What are the preliminary impacts of a BLI on student learning? (2) What are the actual lived experiences of students, professors, and administrators in a university-wide BLI? Preliminary impacts reveal that student retention appears to be greater in blended courses as opposed to traditional ones, and no significant differences were observed for student grades in the campus-wide roster of courses. Both students and instructors shared that an intentional synergy of in-class instructional practices and online activities added value to a course and had a positive impact on student learning. The viewpoints of the three key stakeholders were very different concerning themes such as motivating factors and mechanisms for support; these themes need to be taken into account and weighted carefully.
La sostenibilidad del Tercer Sector de la Comunicación en España. Diseño y aplicación de un modelo de análisis al estudio de caso de El Salto y OMC Radio1
Authors: Barranquero Alejandro , Candón-Mena José
Published: January 2021

El Tercer Sector de la Comunicación se compone de medios y proyectos de comunicación alternativos gestionados por entidades no lucrativas (asociaciones, cooperativas, ONG, etc.) y que se caracterizan por promover un periodismo independiente y abierto a la participación de la ciudadanía y los movimientos sociales. A pesar de su importante papel en el ecosistema de medios, la sostenibilidad de este tipo de proyectos ha sido escasamente abordada por una literatura académica en la que dominan las miradas celebratorias en detrimento de los estudios empíricos y comparados. El presente trabajo revisa los debates y analiza las estrategias de sostenibilidad de los medios españoles del Tercer Sector mediante la construcción y aplicación de un modelo multidimensional de indicadores que contempla tanto la financiación como otras dimensiones clave para asegurar la autonomía y misión social de estos proyectos: organizativas, ecosociales, político-legales e infotecnológicas. La metodología parte de una revisión documental de la literatura de referencia y del estudio de caso de dos experiencias paradigmáticas, una cooperativa (El Salto) y una asociación (OMC Radio), que ayudan a testar los indicadores y que son representativas de ciertas tendencias mediáticas en un contexto de crisis económica y reconversión digital.
Arquetipos e intertextualidad en la versión teatral italiana de Caperucita en Manhattan, de Carmen Martín Gaite
Authors: Pérez Vicente Nuria
Published: January 2021

Caperucita en Manhattan (1990) es una de las más importantes incursiones de Carmen Martín Gaite en la LIJ. En este artículo nos ocuparemos de la versión teatral italiana, estrenada en 1999 por el Teatro delle Marionette di Gianni e Cosetta Colla, de Milán. Estudiaremos el texto escénico para ver cómo se subvierten los arquetipos tradicionales y el importante papel que cumple en tal proceso la intertextualidad, centrándonos en los rasgos estructurales y lingüísticos que definen a los principales personajes de la novela para observar si permanecen, y cómo, en la versión teatral.
Pedagogía e interculturalidad en el teatro infantil de Concha Méndez: El pez engañado
Authors: Barrantes Martín Beatriz
Published: January 2021

Concha Méndez fue partícipe del convulso mundo de la década de los años 30 del siglo XX; su inmersión en un contexto intercultural, así como su siempre infatigable afán pedagógico, son cuestiones cruciales que aparecerán en las obras que escriba durante ese tiempo. Este artículo se ocupa de analizar el acercamiento de Méndez al teatro desde una perspectiva integradora. Buen ejemplo de ello es la pieza titulada El pez engañado. En esta breve obra Méndez consigue presentar una reveladora propuesta personal sobre su manera de entender la interculturalidad desde una perspectiva didáctica.
Mapa de compañías y festivales del teatro para la primerísima infancia en España
Authors: Ceballos Viro Ignacio , Llergo Ojalvo Eva
Published: January 2021

El teatro para la primerísima infancia, dirigido a espectadores menores de 3 años, es un fenómeno en auge en la escena contemporánea. El número de compañías, espectáculos, festivales y ciclos que se dirigen a esta franja de edad ha ido creciendo desde su aparición en España a principios del siglo XXI. Ante esta nueva manifestación, en este artículo realizamos un inventario de compañías, clasificamos sus obras, registramos su aparición cronológica y ofrecemos un mapa con la ubicación geográfica de cada una. El análisis de todos estos datos relativos al ecosistema del teatro para los más pequeños nos permite ofrecer una caracterización global del fenómeno en España.
Pasen y lean: los orígenes del teatro infantil español en la Biblioteca Pedro Cerrillo de la Universidad de Castilla-La Mancha
Authors: Sánchez Ortiz César , Rodríguez Abad Ernesto
Published: January 2021

Este texto pretende, como principal objetivo, dar a conocer el fondo antiguo de teatro infantil de la Biblioteca Pedro Cerrillo de la Universidad de Castilla-La Mancha, además de reivindicar los estudios e investigaciones en un género tan minoritario como es el teatro infantil. Como este repaso analítico, el fondo acaba en 1939. En ese año acabaron también muchos proyectos e impulsos educativos, culturales y sociales que finalizaron con el estallido de nuestra Guerra Civil. Estas obras nos dan una imagen bastante fiel de la evolución de un teatro para niños que, como la propia Literatura Infantil, ha experimentado un cambio considerable.
El teatro para la infancia y la juventud en los márgenes de un territorio inexplorado
Authors: Gómez Rubio Gema , Ortiz Ballesteros Antonia M.
Published: January 2021

Introducción al monográfico
The effect of hedging exchange rate risk, interest rate risk and commodity price risk with derivative instruments on firm value
Authors: Almas Nadhifah , Wijaya Chandra , Indriati Fibria , Anindyaswari Sekar
Published: January 2021

The purpose of this paper is to analyze the effects of firm value on hedging for exchange rates, interest rates and commodity price risks using derivative instruments as well as examining different types of derivative instruments, including forward contract, future contract, option contract, and swap contract, used as hedging instruments to assess their various effects on firm value. The proxy used for the firm value variable is Tobin’s Q, and the ordinary least squares regression is employed for the research method. The study used 348 records from non-financial companies listed on the Indonesia Stock Exchange over the period 2015–2018. There are different results. First of all, the use of hedging for exchange rate risk with derivative instruments has a positive and significant effect on firm value. Secondly, the use of hedging for interest rate risk with derivative instruments has a negative but not significant effect on firm value. In addition, the use of hedging for commodity price risk with derivative instruments has a positive but not significant effect on firm value. Moreover, the effects from hedging using derivative contracts in general on firm value does not give results that are different from the use of hedging risk for exchange rates, interest rates and commodity prices with derivative instruments.
The effect of soft skills, ethics, and value on the willingness of employers to continue recruiting UMT graduates
Authors: Ngah Abdul Hafaz , Kamalrulzaman Nurul Izni , Ibrahim Fauzayani , Osman Noor Azuan Abu , Ariffin Nur Asma
Published: January 2021

This study aims to investigate the effect of soft skills and ethics and value on the employers’ willingness to continue recruiting Universiti Malaysia Terengganu (UMT) graduates, together with the moderating effect of knowledge on the relationship between soft skills and the employers’ willingness to continue recruiting UMT graduates. The study’s respondents comprised of 208 employers in Malaysia who responded through an online survey using Google Forms. The survey data was then analyzed using the Partial Least Squares Structural Equation Modelling (PLS-SEM), indicating that soft skills positively affected the employers’ willingness to continue recruiting UMT graduates. Nevertheless, ethics and value were found to be insignificant factors on the employers’ willingness to continue recruiting UMT graduates. It was also revealed that knowledge had the moderating effect on the relationship between soft skills and the employers’ willingness to continue recruiting UMT graduates. Therefore, universities were recommended to invest in soft skills and knowledge education to ensure that graduates met the employers’ professional recruitment standards in areas of expertise.
Does motivation play moderating role on organizational citizenship behavior? Evidence from Indonesian telecommunication firms
Authors: Herlina Maria Grace , Saputra Nopriadi
Published: January 2021

Highly competitive and continuous business changes in telecommunication industry make organizational citizenship behavior (OCB) strategically important. This research aims to test the impact of transformational leadership of the direct supervisor on working motivation of the employees. Does supervisor's leadership capability impact on employees' work motivation more intrinsically or extrinsically? The study was conducted in an Indonesian telecommunication company which provides television cable and high-speed internet services for the high-rise building in Java and Sumatra. It involved 199 employees as the respondents. The collected data was analyzed with structural equation modelling approach. The statistical test has proved that transformational leadership has a positive impact on work motivation and organizational citizenship behavior. The motivation – both extrinsic motivation and intrinsic motivation, impacts on organizational citizenship behavior significantly. Although transformational does impact on organizational citizenship behavior both directly and indirectly, but the working motivation does not play a mediating role in the relationship between transformation leadership and organizational citizenship behavior.
Green purchase intention: The power of success in green marketing promotion ,
Authors: Jamal Fauziyah Nur , Othman Norfaridatul Akmaliah , Saleh Raden Chairul , Chairunnisa Safira
Published: January 2021

The development of green marketing has received the attention of various levels of business around the world. The promotion of green marketing is now shaping all business sectors' practices, including the property industry. Yogyakarta is one of the cities whose industry has been developing so fast. This study explored green purchase intention to succeed in green marketing promotion. It examined how the relationship between green purchase intention with the variables supporting it and measuring its value. This research was completed with two methods: identifying the relationship between the green purchase intention variables (endogenous) with variables and their indicators (exogenous) that affect the value of green purchase intention. The identification using structural equation modelling. While the measurement of green purchase intention values was carried out using a dynamic system simulation. The data was collected through the survey method on 400 sample sizes. The results obtained, a significant relationship between 4 exogenous variables and the endogenous variable and also obtained some prediction value per unit time.
Effectiveness of psychometric tests for the selection of personnel in jobs in the retail sector
Authors: Chipana-Castillo Cristian , Miranda-Roca Gabriela-Jhennyfer , Vicente-Ramos Wagner
Published: January 2021

The aim of this study was to determine the effectiveness of psychometric tests in the selection of personnel in retail sector jobs. The study used the scientific deductive method of explanatory level, with non-experimental design on companies in the retail sector in the region of Junín, Peru. The most relevant psychometric tests in the study was the interview whose intention was to go into the life of the interviewee ensuring, suggestions, opinions and behavioral attitudes, knowledge tests to assess the capabilities and skills of the candidate and finally personality tests that allow to know the working relationship, performance, satisfaction and staff turnover. The results generated through structural equations, show that the interview, positively influences the selection of personnel (p≤0.05). In relation to knowledge tests based on IQ, the results reveal that it had a positive impact on personnel selection (p≤0.05). Finally, personality tests based on psychological traits, significantly influence in personnel selection (p≤0.05). The conclusion of the study indicates that the interview, knowledge tests and personality tests in the selection of personnel contribute to the efficiency of the human resources area, thus optimizing the resources of the organization.
The effect of psychological capital on team performance: The moderating role of leadership behavior in advertising agencies in Amman City
Authors: Ayed Nesreen Tayseer , Bataineh Abdallah Q. , Idris Mohammed
Published: January 2021

This research aimed at identifying the impact of psychological capital dimensions (self-efficacy, hope, optimism and resilience) on team performance at advertising agencies operating in Amman city. Moreover, the study examines the moderating role of leadership behavior on the relationship between the psychological capital and team performance. The researchers rely on descriptive and analytical approach, where the research population consists of all employees working in thirteen advertising agencies operating in Amman city. Convenience sampling technique was applied to distribute (250) questionnaires on the research sample. To analyze the research data; the researchers used a set of statistical methods including Cronbach's alpha along with a normality test, standard deviation, exploratory factor analysis, confirmatory factor analysis, multiple regression, interactive hierarchical regression and process procedures methods using SPSS-V20 and AMOS-V23. The results indicate that there was a statistically impact of psychological capital dimensions (self-efficacy, hope, optimism and resilience) on team performance in advertising agencies operating in Amman city. There was also a significant and role for leadership behavior as moderating variable between psychological capital dimensions and team performance.
Uncertainty of the business environment affecting business success due to the Covid-19 pandemic
Authors: Yustian Okky Rizkia
Published: January 2021

The purpose of this study was to analyze the influence of entrepreneurial competence and business environment on the business success of creative industry SMEs in West Java which were affected by Covid-19. Data collection was done using a questionnaire distributed to 254 respondents. Partial Least Square Structural Equation Modeling (PLS-SEM) was used to test the hypothesis. The results showed that entrepreneurial competence and business environment influenced the SMEs’ business success during the Covid-19 pandemic. This article also presents some managerial implications of the study.