bluuebunny/crossref_metadata_2025 huggingface dataset:
Leaching Impact on Compressibility and Shear Strength of Undisturbed and Cement-treated Champlain Sea Clay
Authors: Afroz Mohammad
Published: June 2021

This research investigated the impact of leaching on the compressibility and shear strength properties of undisturbed and cement-treated Champlain Sea clay. A total of five undisturbed clay samples were leached with distilled water in the laboratory to reduce the salinity from initial values ranging from 9.5 to 15 g/L to the salinity values of 2.75, 1.45, 1.03, 0.55, and 0.35 g/L. A series of geotechnical tests were conducted on these samples at different salinity levels, including constant rate of strain consolidation tests, consolidated isotropic undrained triaxial compression tests, and vane shear tests. The experimental results showed that leaching leads to an increase in the compressibility and a reduction in shear strength of undisturbed Champlain Sea clay. The experimental results revealed that cement, mixed at a dosage of 50 kg/m3 , can significantly decrease the compressibility and increase the shear strength of Champlain Sea clay. A leached cement-treated sample exhibits a relatively higher compressibility than that of unleached cementtreated one. An increase in compressibility was also observed as salinity declines for the cementtreated samples. Moreover, a cement-treated sample at a lower salinity level displays slightly a higher shear strength compared to that of a cement-treated sample at the original salinity level.
Intersections of gender and political economy: Florine Stettheimer and other modernist salonnieres.
Authors: Velardo Valerie
Published: June 2021

"Salonnieres of the Modernist era have used salon culture as a means to reshape traditional public spheres and social structures. Female salonnieres have been influential, yet often forgotten, figures of modernist art institutions. They used their financial and economic clout to help reshape political and economic social structures. Their example also allows us to study the ways in which finances either limited or allowed women to shape social structures, while proving the importance of their salons within the modernist era as a public sphere and as a space to challenge traditional gender roles. Thus, they helped shape the political and economic dimensions of the future art market."--Introduction.
Effect of Operating Conditions on the Production of Volatile Fatty Acids from Organic Wastes
Authors: Battaglia Daniel
Published: June 2021

The five parameters being analyzed are pH, temperature, retention time/organic loading rate, substrate to inoculum ratio, and inhibitors of VFAs. The effect of pH has been shown to produce optimal concentrations of VFAs when outside the optimal range of methanogenesis. Temperature sees different types of VFAs being produced at different concentrations dependant on mesophilic or thermophilic conditions. The organic loading rate (OLR) and retention time (RT) demonstrate similar concepts as longer periods of time allow for more VFAs to be converted from the waste but readily supplying waste to digesters sees higher concentrations produced immediately. The substrate to inoculum ratio (S/I) showed ratios above 1 to be favorable in production as it provided enough inoculum (microorganisms) to convert VFAs effectively. Lastly, the effects of several VFA inhibitors are discussed with regards to their impacts on the anaerobic digestion process and their inhibition of certain VFA’s formation.
Vibrations of the Body: Sounding Out a Way
Authors: Joosse Angela G.
Published: June 2021

Vibrations of the body: sounding out a way carves out a way to write in close proximity to creative work and embodied experience. The primary research examined in this paper is the group of four films and videos constructed by Angela Joosse during her Master's study. This body of work includes, Ear after ear (5 min. 16mm, 2D and 3D computer animation), City window (10 min. digital stills, digital video, computer annimation), 4C (7.5 min. digital video), and Shapes eat shapes (3 min. digital stills, computer animation).

By working through an acoustic epistemology, this thesis proposes a means of including dynamic processes in writing and analysis. How might thinking, speaking and creating through metaphors of sound engender a more dynamic and embodied relation with being? Thinking through metaphors of sound necessarily includes elements of duration and modulation in time, as well as simultaneity and layering of disparate tones and textures.
Three-dimensional GIS-based approach for highway design consistency evaluation
Authors: Li Yingfeng
Published: June 2021

The mission of transportation is to transport people and goods safely and efficiently. Therefore, traffic safety has been one of the most important topics since the birth of the subject of transportation. Improving highway design consistency is considered as an important strategy for improving traffic safety. Geographic information systems (GIS) has been popular for decades due to its great ability to deal with spatial or spatially-related data. Contributions from GIS to transportation have become well known in some aspects. However, GIS, especially its 3D visualization function, has not, in previous studies, been integrated into the core of the highway design consistency evaluation procedure. In contrast, the major objective of this thesis research is to integrate the latest advanced GIS techniques including its 3D visualization function and the state-of-the-art knowledge from previous studies into the highway design consistency evaluation procedure. By adding new functions specifically developed for highway design consistency evaluation, a 3D GIS-based highway design consistency evaluation methodology is developed. This newly developed methodology and associated software tools, as a combination of GIS, including its 3D visualization function, and highway consistency modules, will make significant contributions in the following aspects: highly automated consistency evaluation procedure, 3D-alignment-based consistency level analysis, impressive evaluation result presentation, and spatially based consistency improvement suggestion. Verification of this methodology on a typical 3D-highway segment in Ontario shows very promising results. This study, to a great extent, is convincing that, in the near future, designers could be able to design highways in a regular GIS environment.
Decision maker satisfaction in a web analytics context: the impact of analysts’ skills
Authors: Verspan Stephen
Published: June 2021

This quantitative research targets decision makers, who rely on the analysis of web data (web analytics) in order to make strategic decisions. As identified in the literature, important factors in a web analytics context are information quality, human factors and the presence of actionable insights. Thus, the research had two objectives. The first objective was to provide a better understanding of the skill(s) that matter(s) the most when hiring, training, or working with a web analyst, with the objective of obtaining actionable insights from the reports the team of web analysts prepares. The second objective was to propose a model – based on the DeLone and McLean’s (2002) Information Systems (IS) success model – that predicts web analytics success on the basis of decision maker satisfaction, which in turn depends on information quality, and business, analytical and technical skills of a team of web analysts. The results obtained from this study reveal that web data analysis expertise, and the ability to provide agreed upon practical insights are key skills that have a significant impact on decision maker satisfaction. These findings are beneficial to several stakeholders, such as academia, researchers, and the business community, as they provide empirical evidence that may help develop curriculum, provide directions for future research, and determine what profiles to target when hiring or training web analysts. Furthermore, these results provide evidence of the reliability of the proposed research model, and the applicability of the DeLone et al.’s (2002) IS success model to the WA context.
Development of a Multi-Scale Stormwater Management Modelling Methodology
Authors: Haque Preetha
Published: June 2021

The evaluation process of the land development project becomes complicated, as the simulation results of Fine-Scale Models (FCM) of lands proposed for development cannot be easily transferred to the watershed Coarse-Scale Models (CSM) due to parameterization problem. In this research study, a Multi-Scale Modelling (MSM) methodology was developed to minimize the difficulty in transferring the result into the different spatial scales of the models. The developed MSM methodology was tested on Ganatsekiagon Creek’s sub-watershed, simulating several scenarios. The analyses of model results show that the CSM is generating a lower Peak Flow Rate (PFR) and Flow Volume (FV) than the MSM, while the increasing level of development with BMPs leads to a rise in FV and a decrease in PFR. The comparison results of with and without BMPs show that the stormwater management ponds are effective in PFR reduction and the implementation of LID practices can be effective in FV reduction.
Online decision support system for water reuse system planning
Authors: Tiveron Thomas
Published: June 2021

The need for the development of water reuse systems has never been higher due to depleting potable water sources, and the global migration of citizens to urban centers. While water reuse systems are a viable solution to these emerging problems, the implementation of them are often plagued by the increasing number and complexity of water treatment processes available. Therefore, the development of a decision support system (DSS) could aid engineers in their attempts to find solutions.

This thesis contains the methodology and development of the DSS, WTRNetDSS Online. This web-based DSS uses a simple geographic information system (GIS) interface that takes the user's input of water resource recovery facilities (WRRFs) and potential reclaimed water end users and through the implementation of a multi objective genetic algorithm returns a set of optimal solutions. WTRNetDSS Online successfully determined optimal solutions for the case study of irrigation for Chicago area golf courses.
Self-consolidating concrete : rheology, fresh properties and structural behaviour
Authors: Lambros Vasilios Bill
Published: June 2021

Self-consolidating concrete (SCC) is known for its excellent deformability, high resistance to segregation and bleeding and can be obtained by incorporating viscosity modifying agents (VMA). Identifying and proposing a new low-cost VMA, and developing and testing the fresh and mechanical properties of such a concrete are essential. This thesis presents the performance of four new polysaccharide-based VMAs in enhancing the rheological and fresh properties of cement paste, mortar and concrete. An experimental study on the structural properties of two SCC and one normal concrete (NC) mixtures with varying proportions of coarse aggregate content (713-1030 kg/m 3 ) and maximum aggregate size (12 and 19-mm) is presented. Eighteen reinforced concrete beams were tested to study the comparative shear resistance of SCC and NC. Sixteen SCC and NC filled steel tube columns with and without additional steel reinforcement were tested. A design equation for peak load capacity of CFST columns is proposed and validated.
Seismic behavior and retrofitting of reinforced concrete moment resistant frames
Authors: Talebi Shahram
Published: June 2021

Many multistory reinforced concrete frame structures built prior to 1970's located in seismic zones have been designed only for gravity loads without any considerations for lateral loads. These structures are referred to as Gravity Load Designed (GLD) frames. The lack of seismic considerations in GLD structures results in non-ductile behavior that may cause the lateral load resistance of these buildings to be insufficient for even moderate earthquakes.

Based on the current Canadian practice as prescribed by CAN3-A23.3 1994, reinforced concrete structures located in seismic zones should be designed as ductile or nominally ductile frames. In this study, a typical 5-story frame building is designed as (a) ductile, (b) nominally ductile and (c) GLD frame. Analytical investigation is performed to evaluate and to compare the performance of each frame. The study includes "pushover" analysis and non-linear time-history analysis. The results in terms of story displacement, ductility, shear, drift, sequence of cracking and yielding and the damage potential are presented. As a result of the poor performance of the GLD frame, it is retrofitted with fiber-reinforced polymers (FRP). Different retrofitting schemes using FRP are used to compare the behavior in terms of ductility. In this study, the behavior of the retrofitted frame is compared with the that of the GLD frame.

Based on the results of this study, a guideline for improving the seismic performance of reinforced concrete frame structures is provided.
Digital Filter Design Package (DFP) Extension
Authors: Sun Hongbo
Published: June 2021

In this study, we presented an integrated approach to the design of digital filters using the digital filter package (DFP). We added four new features to DFP: multi-band filter design, adaptive filter design, two-dimensional filter design and TMS320 code generation. We discuss each of these new features from design consideration to realization. We present design examples and demonstrate the design results generated by DFP. We also discuss GUI design in MATLAB, the DFP GUI design structure and the data transition structure from one DFP function to another. We show that DFP can allow efficient design of the flollowing filter structures: low pass filter, high pass filter, band pass filter, band stop filter, multi band filter, differentiator, Hilbert Transformer, adaptive and 2D filters. DFP allows the use of a variety of FIR and IIR design methods as well as hardware implementation structures; it provides a useful tool to quickly examine a variety of filters and understand the trade-offs involved in varying the characteristics of the filter.
Fluid Flow and Heat Transfer Analysis of a Nanofluid Containing Motile Gyrotactic Micro-Organisms Passing a Nonlinear Stretching Vertical Sheet in the Presence of a Non-Uniform Magnetic Field; Numerical Approach
Authors: Kashkooli Farshad Moradi , Soltani M. , Raahemifar Kaamran
Published: June 2021

The behavior of a water-based nanofluid containing motile gyrotactic micro-organisms passing an isothermal nonlinear stretching sheet in the presence of a non-uniform magnetic field is studied numerically. The governing partial differential equations including continuity, momentums, energy, concentration of the nanoparticles, and density of motile micro-organisms are converted into a system of the ordinary differential equations via a set of similarity transformations. New set of equations are discretized using the finite difference method and have been linearized by employing the Newton’s linearization technique. The tri-diagonal system of algebraic equations from discretization is solved using the well-known Thomas algorithm. The numerical results for profiles of velocity, temperature, nanoparticles concentration and density of motile micro-organisms as well as the local skin friction coefficient Cfx, the local Nusselt number Nux, the local Sherwood number Shx and the local density number of the motile microorganism Nnx are expressed graphically and described in detail. This investigation shows the density number of the motile micro-organisms enhances with rise of M, Gr/Re2, Pe and Ω but it decreases with augment of Rb and n. Also, Sherwood number augments with an increase of M and Gr/Re2, while decreases with n, Rb, Nb and Nr. To show the validity of the current results, a comparison between the present results and the existing literature has been carried out.
Environmental Load Evaluation of Nipigon River Bridge
Authors: Hrnjak Stefan
Published: June 2021

If current climate trends continue, climate change will be inevitable and designing infrastructure which can withstand changing environmental loads will be a concern. Furthermore, current infrastructure will be affected and may require retrofitting or rehabilitation in order to meet safety and code requirements. The scope of this report is to determine the effect of increased environmental load factor coefficients on Nipigon River Bridge. An FEA model was created and the results from the model show that the bridge is sensitive to changes in environmental loads, particularly those of wind and temperature. An increase of 10% in wind and temperature load coefficients was enough to change the governing load combination and surpass the estimated moment capacities.
The New Public Management and Post-Secondary Institutions: the Evolution of the Accountability Regime of Ontario Universities
Authors: Ramlal Sabita
Published: June 2021

The adoption of New Public Management (NPM) principles, practices and values in the Ontario public sector was one phase in the evolution of the accountability regime for universities and the post-secondary education (PSE) sector since the early 1990s. New Public Management advocates the adoption of private sector management principles and practices in the public service that re-defines citizens as customers, and emphasizes efficiency and effectiveness. It also places a high value on transparency and accountability to government. The research found that the evolution of the accountability regime for universities in Ontario was significantly influenced by NPM which has meant growing demands for universities to demonstrate value for money invested by government through institutional and system level performance measures and results. The findings in the comparative analysis of public policy and administrative reform of higher education in other jurisdictions show that the impact of NPM was even greater in the jurisdictions reviewed than in Ontario. The information and insights gathered from key informants in the PSE sector support the central argument and demonstrate the differing views on changes in the accountability regime and the challenges facing the PSE sector as a result of NPM-influenced reforms. The research also reveals a multiplicity of NPM-inspired accountability mechanisms: financial compliance focusing on administrative issues; voluntary accountability initiatives; and government-mandated performance measurement in terms of achievement of government’s policy goals of increased quality, access, and accountability. The changing nature of the accountability regime demonstrated an effort by the government to assert itself over autonomous entities over which it had very little control since the 19th century. It was concluded that the changes made by government in the accountability regime while not dramatic but incremental has had some impact in terms of holding universities more accountable. This incremental change in the accountability regime over several governments resulted in a disconnected web of accountability mechanisms which was not always effective. The paper concludes that there is a need for a rationalisation of the accountability framework that provides accountability to government and taxpayers without the costly burden of meaningless performance measurement and reporting.
The use of random decrement technique for long term health monitoring of concrete structures
Authors: Morsy Rana
Published: June 2021

This investigation deals with the development of an advanced strategy for Structural Health Monitoring (SHM) of concrete beams and girders for important structures such as bridges, offshore platforms and nuclear power stations using smart monitoring systems, including an effective diagnostic approach for damage detection with a reliability-based performance ranking. The proposed strategy can be classified into four main sections: identification of the existence of damage, determination the localization of the damage, estimation the level of damage, and assessing the seriousness of the damage regarding the structure’s service life. Random Decrement (RD) is an accurate dynamic analysis diagnostic tool that has been used effectively for SHM; the technique has been used within various fields in mechanical, aerospace, and, recently, civil engineering. The damage detection approach is based on the RD technique. A theoretical, numerical, and experimental investigation has been conducted on concrete beams using the RD technique for damage detection in terms of changes in the dynamic properties and used at successive multiple points under certain leading point conditions to determine the location of damage through the development of the Multi-Channel Random Decrement (MCRD).
Nuclear fuel waste and aboriginal concerns : Canada's nuclear fuel waste management concept public hearings--a content analysis
Authors: Farrugia-Uhalde Ann Marie
Published: June 2021

This thesis examined Aboriginal views on nuclear fuel waste management in Canada and assessed the concerns and issues Aboriginal people are likely to voice at future interactions and deliberations in the next siting phase. A content analysis method was used to examine the entire public record produced during the 1996/1997 Federal Environmental Assessment Review Panel hearings held on the Environmental Impact Statement for the concept of geological disposal of nuclear fuel waste. The content analysis indicated that Aboriginal peoples have continued to express opposition to the geologic disposal concept with intensity and consistency as demonstrated by measures of issue frequency and number of lines expended on each issue in the testimony. Further, the study indicated that native views remained consistent when compared with earlier scoping hearings in 1991, and that their positions were substantively and culturally different than non-native responses to the concept. In addition, two case studies were examined where natives in North America have been confronted with, and expressed views on, nuclear fuel waste storage or disposal, in order to further demonstrate the consistency of native views. The study found that Aboriginal responses have likely influenced the consideration of alternative disposal concepts in the long-standing Canadian nuclear waste management process.
Effect of Hydrothermal Pretreatment on the Acidification of Thickened Waste Activated Sludge and Source Separated Organics
Authors: Kakar Farokh laqa
Published: June 2021

The objective of this study was to investigate the impact of the hydrothermal pre-treatment (HTP) on solubilization and acidification of thickened waste activated sludge (TWAS) and source separated organics (SSO). The temperatures, retention times, and pressures used in this study ranges were 150-240°C, 5-30 min, and 69-488 psi, respectively. Mesophilic batch acidification tests were conducted for all pretreated and non-pretreated samples. For the TWAS, the highest overall COD solubilization due to HTP and acidification of 64% was observed at “200°C-10 min” compared to 30% for raw TWAS. The highest VFAs yield of 2856 mg VFAs/g VSS added was observed at “190°C-10 min” compared to 1251 for raw TWAS. For the SSO, the highest overall COD solubilization of 63% was observed at “210°C-20 min” compared to 17% for raw SSO. The highest VFAs yield of 1536 mg VFAs/g VSS added was observed at “210°C-20 min” compared to 768 for raw SSO.
An Investigation into Hufi English-Majored Students’ Issues with Translation and Interpretation
Authors: Hien Nguyen Thanh
Published: June 2021

English Language programs that seek to offer learners adequate English skills and translate strategies to conduct in multilingual environments include translation and interpretation. However, translating effectively is not a simple task because English language skills are not the only factor to consider; other factors also play a role. Owing to their poor language proficiency and comprehension of translation methods, many HUFI English-majored students have no experience with translation and interpretation. Therefore, this paper looked at how HUFI English-majored students approach translation and interpretation tasks and how successful those translated versions are in relation to the original Vietnamese documents. The results showed many incorrect translated items caused by “word-by-word” translation or meta-phrase technique and the influence of the Vietnamese language on two translated texts and talks from ten participants. Teachers of translation and interpretation subjects and students will get advice on improving the curriculum and teaching methods.
An Investigation into Factors Affecting Hufi Students Poor English Performance: A Case Study of Non-English Major Third-Year Students at Ho Chi Minh University of Food Industry
Authors: Ha Le Vu Ngan
Published: June 2021

It is undeniable that most students learning English as a foreign language at universities face many problems. This study was conducted to explore some reasons that impact HUFI students low English Learning. The subjects of this quantitative research were the third-year students in two classes—each respondent listed 10 reasons why students are poor in English performance. The study's findings revealed some primary factors, including firstly, the majority students stated that they were not confident enough to use English in class because of shyness and concern about making mistakes. Second, students lack fundamental knowledge and skills. Third, students do not have opportunities to practise English with native teachers because of big size classes. Fourth, students are not satisfied with some teachers’ teaching methods. Last but not least, students are not well-motivated, encouraged and instructed to apply some effective learning strategies.
TOTAL WAR IMPLEMENTED IN DEFENCE DIPLOMACY: CASE STUDY OF THE RE-NEGOTIATION OF THE DEFENCE COOPERATION AGREEMENT BETWEEN THE GOVERNMENT OF THE REPUBLIC OF INDONESIA AND THE GOVERNMENT OF THE REPUBLIC OF SINGAPORE (DCA INDONESIA-SINGAPORE)
Authors: Syarifuddin Kurniawan Firmuzi , Prakoso Lukman Yudho , Widjayanto Joni
Published: June 2021

Total war is not always associated with power seizure using physical means, however, the real meaning is how a country could implement the whole of resources to fight for their national interest. This study is aimed to provide an understanding that total war could be implemented in all areas of activities. The study is conducted with a qualitative descriptive method through a case study approach, library study, interview, and observation in the field. It has been implemented in defense diplomacy accordingly without our awareness. For instance, in the case of the delay in the Indonesia-Singapore Defence Cooperation Agreement (DCA) renegotiation which unites all personnel from different agencies and institutions, as well as all professional fields to come up with the same directions for Indonesia national interest. This study concludes that a total war strategy could be implemented in defense diplomacy to get a maximum result to fight for Indonesia’s national interest.
THE DECISION MATRIX OF THE MOST EFFICIENT ENERGY UTILIZATION FOR COLD STORAGE AT PULAU MOROTAI REGENCY
Authors: Yoesgiantoro Donny
Published: June 2021

Pulau Morotai Regency is one of the areas identified by the government as a fisheries-focused Special Economic Zone. However, the reality on the ground is that the fishing industry has only one cold storage facility. One of the factors is the region's remote position, which requires a considerable amount of capital and operational expenditure. Lower energy costs are one way to reduce the operating cost. This study aims to determine the value of each energy-efficient criterion and to know the most efficient energy composition implemented for Cold Storage in Morotai. This study uses the decision matrix approach to compare the operating costs of cold storage with a capacity of 200 tons over 20 years with three possible alternatives: PLN electricity, hybrid electricity (PLN + photovoltaic), and fully photovoltaic energy. With a score of 38 in the decision matrix table, the outcome of the decision matrix calculation indicates that cold storage with a photovoltaic system is much superior.
THE ROLE OF THE INDONESIAN NATIONAL ARMY (TNI) IN COUNTERING TERRORISM
Authors: Tarigan Herlina , Saputro Guntur Eko
Published: June 2021

Terrorism that occurs both in the world and in Indonesia is a crime that cannot be classified as an ordinary crime, academically categorized as an extraordinary crime. Actions of terrorism in Indonesia can already be classified as a military threat, namely threats that use armed force, are organized and are considered to have capabilities that endanger state sovereignty. The role of The Indonesian National Army task in overcoming these acts of terrorism has not been effective. The research objective is to provide government input on the importance of The Indonesian National Army role in overcoming the threat of terrorism. Research using qualitative methods is aimed at understanding social phenomena from the perspective of the participants. The results achieved were that legally, the military could also be deployed to combat terrorism both from the aspect of domestic law and in the provisions of international law.
SN-CUO-ARABIC GUM COMPOSITION FOR RED TRACER PROJECTILE AMMUNITION POTENTIAL
Authors: Basyir Abdul , Asri Nining Sumawati , Aryanto Didik , Isnaeni Isnaeni , Firdharini Cherly , Widayatno Wahyu Bambang , Wismogroho Agus Sukarto , Sagita Diang , Lesmana Denny
Published: June 2021

Fundamentally, tracer projectile material based on pyrotechnic composition, and where the pyrotechnic was generally composed of fuel, oxidizer, and binder. The tin (Sn) material is one of the candidates for fuel material because tin has a low melting point, so this composition can ignite at low temperature, while the copper oxide (CuO) can emit the orange-red spectrum. This study aims to evaluate the thermal and spectrum character of Sn-CuO-AG-based composition. The characterization data of these samples was evaluated by tests of morphology and phase, enthalpy change, calorie energy, and spectrum emission. Based on this data, the 17Sn-68CuO-15AG sample was emitted a strong red color too, but this sample has a high or the longest exothermic process. Furthermore, the 27Sn-58CuO-15AG sample has emitted a weak red color with medium exothermic energy. Generally, the 22Sn-63CuO-15AG is more suitable than the two other compositions for the tracer projectile composition of ammunition, this material emits a strong red spectrum and low-calorie energy.
An Exact Solution of the Reaction-Diffusion Equation for the Speed of the Interface Propagation in Superconductors
Authors: Panna Neelufar
Published: June 2021

The speed of interface propagation in superconductors for the scalar reaction-diffusion equation ut  =   ∇2u+ F(u)   is studied in detail. Here the non linear reaction term F (u) is the time-dependent Ginzburg-Landau or TDGL equation F(u)=u-u3 which describes the dynamics of the order-disorder transition. In contrast to what has been done in previous work [1] here an improved exact solution has derived by using TDGL equation to determine the speed of the front propagation. The analytical treatment of this study has been found in good agreement with the numerical simulation of V. Mendez et al. [2] and Di Bartolo and Dorsey [3].

The Chittagong Univ. J. Sci. 40(1) : 85-95, 2019
UNIVERSIDAD, COMUNICACION Y FE
Authors: Luna-Tobar+ Luis Alberto
Published: June 2021

La publicación de una revista universitaria conjuga términos cargados de significado y trascendencia. Se deben encontrar en esa revista la misión social de las comunicaciones en el compromiso comunitario de una auténtica universidad. La conjugación de valores tan exigentes no puede realizarse sino en clima de mucha sinceridad. Si a estos términos sustantivos se les adjunta la determinante específica de nuestra universidad, su cualidad de católica y pontificia, nos encontramos frente a un propósito difícil, cuya ejecución exige valentía académica y decisión científica. Si sea posible pedirles lo primero a las academias y si es posible admirar una ciencia que no sea decidida, es asunto que lo clarifica la historia y la historia es la síntesis viva de todo magisterio y toda ciencia entroncada con la existencia. Solamente falta sinceridad en el análisis de lo vivido para aceptar estas realidades indiscutibles.La Pontificia Universidad Católica del Ecuador, Sede en Cuenca, me ha pedido una introducción para el primer número de su revista académica y encuentro que debo asumir este compromiso desarrollando en síntesis el pensamiento de la Iglesia católica sobre los valores anteriormente enunciados, en cuanto se reflejan y viven en una auténtica universidad: la antropología y la teología de la comunicación y de la educación -que es la más noble suerte de comunicación-, en cuanto se realizan en un claustro universitario.
The Outcome of Authentic Material-Based Teaching in a Speaking Class
Authors: Pradana Harsya Danang , Tena Ouda Eda
Published: June 2021

This study was conducted to analyze the language outcome variety of authentic material-based speaking classes of a private university in Yogyakarta. The acceptance of World Englishes variants in the world has led to several changes in English language education, one of them being the focus on native-like accents that has previously been the focus of English language classes. Authentic material, teaching materials created by native speakers of a language, is one way that has been proven to be effective for teaching. However, instead of checking its effectivity, this study researches the language variant of the students. To that end, the researcher interviewed five teachers of speaking classes from a private university in Yogyakarta. The results of the research show that despite all classes using authentic material as a method of instruction, the language variation of the students vary. Some students attained native-like speaking proficiency, while others speak in the Indonesian variety of World Englishes. The future direction of any subsequent research to succeed this one is to find out how this phenomenon could happen.
DETERMINING OF MAGNETIC ABRASIVE POLISHING OF OPTICAL POLYMERS FOR SENSITIVE ELEMENTS OF RADIATION INDICATORS
Authors:   The National academy of the National Guard of Ukraine, Titarenko O. , Zubkova N. ,   National Technical University "Kharkiv Polytechnic Institute"., Novak S. ,   The National academy of the National Guard of Ukraine
Published: June 2021

Extending the durability of functioning of the sensitive elements of radiation indicators and increasing their reliability and safety are the main requirements for producers of modern radiation reconnaissance and monitoring devices. The proposed solutions for construction improving of products provide for the usage of optical fibers and the corresponding formation of loop-shaped channels in the finished sensitive polymer element. Potential possibilities of using magnetic abrasive polishing for finishing channel surfaces are considered. For the chosen construction of the polishing head, the material and form of the powder particles composition and the process parameters are proposed. The effect of the frequency and amplitude of vibration of abrasive particles on the depth of their penetration into the surface layer of the polymer is investigated. It has been determined that the widest possibilities of using powders of the composition Fe - C - Si - Ti with a diameter of d = 50 – 400 μm have a mode when the pressure of the air flow by feeding particles is maintained at a level of 1 atm, the magnetic induction of the field in the working gap is 0.8 T, the vibration amplitude of the particles is a = 0.4 mm, and the vibration frequency varies in the range f = 25 – 30 Hz.
METHOD FOR DETERMINING ENERGY LOSSES IN THE TRANSMISSION OF VEHICLES
Authors:   The National academy of the National Guard of Ukraine, Shasha I.
Published: June 2021

Generally the transmission can be considered as a mechanical system formed by a set of rigid links, the position and speed of which are determined by the problem of the law of motion of the engine crankshaft. The transmission of the car consists of a large number of flywheels which are interconnected by shafts, clutches and other elastic elements with different angular stiffness. These assembly units form a rather complex torsional oscillatory system with scattered parameters. Loads acting on the transmission of the car are due to environmental influences (macro- and micro-profile of the bearing surface, physical and mechanical properties of the soil, etc.) and fluctuations of the car itself, and are random. To determine the actual loads in its elements and the degree of non-uniformity of their motion, as well as finding the laws of this motion, it is necessary to take into account their elasticity and the impact of these processes on fuel consumption. The method of determining losses in the transmission of the car on the basis of the energy approach taking into account the operating conditions of armored vehicles of the NGU is proposed. The method should be based on a mathematical model of fuel consumption as the main source of energy, which takes into account the variety of operating conditions and follows from the theory of the car. Mechanical losses in the engine can be expressed through the magnitude of the piston stroke and crankshaft speed. The average effective pressure is determined by the force lost in the transmission and the force applied to the wheels of the car. The total moment of resistance of transmission given to driving wheels is presented in the form of two components: the moment caused by friction losses in knots transferring loadings (gearboxes, a transfer case, reducers of leading axles, cardan transfers), and the moment taking into account expenses energy for oil spraying in units (hydraulic losses). The total transmission losses consist of two main components: idling losses and torque transmission losses. Losses in transmission separately on units are defined by means of the special stands equipped with braking and loading devices. An important advantage of the method is the ability to obtain the equation of engine power balance and determine the efficiency of the transmission as a system with distributed parameters. Further research should be aimed at improving the mathematical model of fuel consumption, taking into account the calculated values of the transmission efficiency depending on the operating conditions of armored vehicles of the NGU.
Instrumentação para medidas de mobilidade eletrônica e concentração de portadores em amostras semicondutoras, pelo método de van der Pauw
Authors: Ribeiro Luiz Henrique , Oliveira Adhimar Flávio , Rubinger Rero Marques
Published: June 2021

Neste trabalho apresentamos os resultados da construção de um equipamento, de baixo custo, para medidas medida Hall, utilizando a técnica de van der Pauw. Para isso, foi desenvolvido um sistema composto por uma placa eletrônica controlada por uma placa DAQ que juntamente com um software em Labview realiza a automação de todas as medidas necessárias. O sistema é capas de realizar todas as operações necessárias entre os contatos para realizar a técnica de van der Pauw e obter parâmetros como mobilidade eletrônica, concentração de portadores e resistividades elétrica em função da temperatura. Tais medidas são essenciais para estudar o comportamento eletrônico de amostras, visando sua aplicação em dispositivos eletrônicos. Para verificar o comportamento do sistema, foi utilizado uma amostra de Indium tin oxide (ITO). Nesses testes verificou-se que o os tempos de sincronização utilizados para as medidas apresentam resultados com baixo ruído e que a montagem permite a realização de medidas didáticas para disciplinas de pós-graduação e também de pesquisas desenvolvidas pelos alunos de pós-graduação.
Tratamento de múltiplos cbc’s recidivantes: Importância do rastreio precoce e na qualidade de vida do paciente
Authors: Silva Pedro Henrique Freitas , Assunção Anna Joyce Tajra , Moura Adhonias Carvalho , Pereira Maria Clara Leal , Januário Ana Luiza Alves Pio , Dantas Herbet Matheus Neves , Holanda Sarah Maria Monteiro Soares Costa de , Nunes Raissa Martins de Oliveira , Silva Larissa Alves dos Santos , Barros Marianna Mendes de , Rezende Erika Mauler Santiago , Santos Paulo Henrique Marques dos
Published: June 2021

O CBC é o tumor de pele não-melanoma mais comum no Brasil e também o mais benigno, com pequena capacidade metastática e potencial relativo de destruição tecidual local. É originado de células basais da epiderme e também de diferentes partes do aparelho folicular que sofreram ação crônica de radiação ultravioleta. O estudo justificou-se devido a importância do CBC no cenário médico atual, pois tal afecção é recorrente e pode trazer inúmeros prejuízos ao paciente, sejam eles orgânicos ou de cunho psicossocial. Por isso requer melhor metodologia terapêutica e rastreio precoce. Paciente A.C.C.A de 65 anos, sexo masculino, comparece ao consultório dermatológico com pelo menos cinco lesões cutâneas características de CBC que evoluem há mais de 10 anos em regiões frontooccipital (0,5x0,3 cm), pavilhão auricular (1,5x1,0 cm), membros superiores (0,7x0,4 cm) e duas na face anterior do membro inferior direito (1,0x0,6 cm). Refere história familiar e pessoal de tumores cutâneos reincidentes e relata viver estigma social decorrente da doença. Foi realizado exérese cirúrgica com margens livres e fechamento primário, exceto na região da perna, em que foi feita enxertia de pele proveniente da região da virilha com o curativo de Brown. A amostra de material biológico coletada foi submetida ao estudo histopatológico que comprovou a hipótese diagnóstica de CBC em graus de diferenciação variados. Atualmente segue em acompanhamento dermatológico para seguimento de cicatrização da injúria e relata satisfação com o resultado obtido. O CBC aparece frequentemente em consultórios dermatológicos e ambulatórios médicos como queixa principal de pacientes com histórico de fotoexposição crônica ou com história familiar de tumores de pele que necessitam de tratamento cirúrgico. É importante incentivar o hábito de fotoproteção solar, bem como a procura de profissionais capacitados ao diagnóstico precoce da doença com o intuito de evitar tanto o surgimento e evolução dessa afecção como a necessidade de uma intervenção cirúrgica extensa e o comprometimento da autoestima do paciente.
Forragem hidropônica no ecótono Cerrado Pantanal
Authors: Santana Dthenifer Cordeiro , Arevalo Ana Caroline Mello , Silva Pablo Rozo , Kraeski Marcos Jefferson , Ribera Laura Matos , Torres Francisco Eduardo
Published: June 2021

A forragem hidropônica é uma tecnologia de produção de período curto, produção contínua, cultivo em todas as estações do ano, produtividade elevada, baixo consumo de água. Buscando reverter as adversidades climáticas sofrida pelos produtores para alimentar seus animais, objetivo deste trabalho foi avaliar a produtividade e a qualidade da forragem hidropônica no ecótono Cerrado-Pantanal, buscando determinar a espécie e a solução mais adequada para a região. Foram conduzidos dois experimentos na Universidade Estadual de Mato Grosso do Sul, no município de Aquidauana – MS, em casa de vegetação com tela de sombreamento de 50%. O primeiro experimento foi implementado no mês de março e o segundo no mês de setembro, ambos sendo conduzido por 15 dias. O delineamento experimental foi em blocos ao acaso, em parcelas subdivididas. A parcela foi formada pelas soluções (mineral e orgânica) e as subparcelas foram as populações (100% milho, 100% milho + 8 sementes de mucuna, 100% milheto, 50% milho + 50% milheto, 75% milho + 25% milheto e 25% milho + 75% milheto) com quatro repetições totalizando 12 tratamentos. As parcelas continham 1 m2 e receberam 4 litros de sua respectiva solução durante 11 dias. A população constituída de 25% milho e 75% milheto irrigada com solução mineral apresentou melhor qualidade de forragem quanto a proteína bruta. A população de milho e milho + mucuna obtiveram maior matéria seca independente da solução.
When age matters: boys with Duchenne muscular dystrophy have growth delay and a fat mass accumulation, as they get older
Authors: Cunha Thais Alves , Grilo Evellyn Câmara , Costa Ádila Danielly de Souza , Vermeulen-Serpa Karina Marques , Leite-Lais Lúcia , Dourado-Júnior Mário Emílio Teixeira , Vale Sancha Helena de Lima , Brandão-Neto José
Published: June 2021

Anthropometry and body composition evaluation in boys with Duchenne muscular dystrophy (DMD) are challenging, but crucial methods to evaluate the nutritional status, and better anthropometric reference values and body composition predictive equations are needed for this population. Based on these aspects, this study aimed to investigate the hypothesis that changes in anthropometric parameters and body composition of boys with DMD occur according to age. A cross-sectional study with 49 individuals diagnosed with DMD at the neurological outpatient facility at the Onofre Lopes University Hospital in Natal, Brazil, was performed between September 2016 and March 2019. These individuals underwent anthropometric and body composition evaluation. According to age, the participants were divided into four groups:  G1 (2.6 - 8.2y), G2 (8.5 - 10.8y), G3 (11.0 - 14.0y), and G4 (15.9 - 23.0y). The parameters weight-for-age (W/A) (p=0.025), tricipital skinfold (TSF) (p=0.027), adductor pollicis muscle (p=0.041), and corrected arm muscle area (cAMA) (p=0.005) were different among the groups. Regarding anthropometric parameters, was prevalence in the categories of appropriate W/A and a height-for-age (H/A), and eutrophy for body mass index-for-age (BMI/A). For the TSF, there was a higher frequency of severe malnutrition or obesity. The cAMA indicated severe malnutrition in most individuals. As for %FM, high adiposity was more frequent, increasing over age groups (G1 to G4). The boys with DMD presented different patterns of anthropometric and body composition parameters. An increase of fat mass and a decrease of lean mass with age/disease progression were observed.
Influência dos metais pesados no acometimento do câncer: Uma revisão da literatura
Authors: Cruz Jessica Valéria Bastos , Santos Érica Pereira dos , Silva Natália de Jesus , Lima Felicson Leonardo Oliveira , Martinelli Priscila Pimentel , Vasconcellos Neto João Ronaldo Tavares de
Published: June 2021

Objetivo: Relatar a influência dos metais pesados no acometimento do câncer, descrevendo assim, os principais metais detentores dessa possibilidade, citando ainda, os tipos de cânceres comumente ocasionados pela exposição a esses metais. Metodologia: Trata-se de uma revisão da literatura de natureza descritiva e qualitativa acerca da influência dos metais pesados no acometimento do câncer. O estudo foi realizado no período de dezembro de 2020 a fevereiro de 2021, mediante análise nas bases de dados: Pubmed, SciELO e Lilacs. A busca e seleção dos materiais foram realizadas baseando-se em critérios de inclusão e exclusão previamente estabelecidos, o que totalizou 48 materiais, estes publicados entre os anos de 2000 a 2021, compondo assim o presente estudo. Resultados e discussão: Mesmo em baixas concentrações, a exposição exacerbada aos metais pesados promove inflamação crônica, o que desencadeia o estresse oxidativo, e subsequentemente, o processo de carcinogênese. Dentre os principais metais envolvidos no processo de carcinogênese, pode-se citar: o cobre, mercúrio, cobalto, níquel, cádmio, cromo, arsênio, prata e o chumbo. No que se remete aos tipos de cânceres acometidos pela exposição continuada a esses metais, tem-se: os cânceres de pulmão, pele, ovário, mama, estômago, próstata, cérebro e laringe. Conclusão: Os metais pesados apresentam grande influência no processo de carcinogênese, o que está intrinsicamente vinculado a exposição sequenciada e bioacumulação destes elementos. Numerosos são os metais pesados com o potencial de desencadear o desenvolvimento de canceres, o que reflete na variabilidade de tecidos e órgãos afetados e a diversidade de tumores aos seres humanos.