Graphical Profiles Research Articles

Development of subjectivity of future teachers in the course of professional training

The values of public life in the twenty first century have changed dramatically. For successful socialization, specialists need: critical thinking, readiness for changes, reasonableness of their dispositions, conscious decision making, and active management of the situation. Psychologists have designated this set of personal qualities as subjectivity. At all times, it has not lost its professional significance for teachers, and today compliance with the challenges of the era is becoming relevant for them. Subjectivity of future teachers trained in colleges and universities should be considered as an adaptive quality of personality that requires creativity of mind and behavior. Debates about the psychological content of subjectivity, its types, and determinants of formation and change have not clearly defined it as a theoretical category of scientific psychology. The purpose of the conducted empirical research is to identify the types of subjectivity of future teachers in educational activities. We studied the development of subjectivity of future teachers in the learning process. It was assumed that the dominant type of consciousness of the student determines the configuration of its subjectivity, which can be changed in the course of training. Subjectivity is presented as a psychological construct integrally describing the ability of a personality to voluntarily change oneself and the surrounding reality. The criteria distinguishing it from consciousness are value-meaning orientation and self-regulation, which are revealed in transformational activity. Subjectivity was researched in 314 students of pedagogical universities and technical schools during four years of their studies. The type of prevailing consciousness was diagnosed by the indicators «active» and «contemplative» and communicativeness - by the indicators «communicability» and «reflectivity». The results are presented as graphic profiles of subjectivity, which are classified into four types according to the dominating indicator: «philosopher», «organizer», «facilitator» and «teacher»; the types were further described. The psychological support of the students was performed with a view of increasing their subjectivity. This was achieved via trainings promoting consciousness, social activity, self-concept, and aspirations. The final diagnostics of the future teachers showed subjectivity increase by the above indicators: in the group of technical school students - from 17 to 32%, in the group of full-time university students - from 16 to 22 %, in the group of university students by correspondence - from 12 to 23 %.

Hall and ion slip effects on MHD rotating flow of elastico-viscous fluid through porous medium

Abstract We investigated the Hall and ion slip effects on the MHD convective flow of elastico-viscous fluid through porous medium between two rigidly rotating parallel plates with time fluctuating sinusoidal pressure gradient in this paper. In an initially undisturbed state both the fluid and the plates are in rigid rotation with the uniform angular velocity Ω about the normal to the plates. At t > 0 the fluid is driven by a fluctuating pressure gradient parallel to the channel walls. Analytical solutions for the velocity, temperature and concentration are evaluated and discussed computationally with the help of graphical profiles. For engineering interest, we obtained skin friction, Nusselt number, Sherwood number and volumetric flow rate and discussed numerically. Elasticity and magnetic field resist the fluid motion gets thinner boundary layer. Lesser frequency of oscillating pressure gradient frightens the reverse flow. The similar variation of skin friction should be circumvented with less significant time span and strength of the magnetic field.

Hall and ion slip effects on unsteady MHD free convective rotating flow through a saturated porous medium over an exponential accelerated plate

In this paper, we have investigated the Hall and ion slip effects on the unsteady magnetohydrodynamic (MHD) free convective rotating flow over an exponentially accelerated inclined plate entrenched in a saturated porous medium with the effect of angle of inclination, variable temperature and concentration. The flow induced by the presence of heat source/sink and destructive reaction. The Laplace transform technique has been used to solve the governing equations. The effects of the non-dimensional parameters on the governing flow velocity, temperature and concentration are examined with graphical profiles. Also for engineering interest the shear stress, Nusselt number and Sherwood number are obtained analytically and discussed computationally with reference to foremost flow parameters. It is reported that the presence of magnetic field prevents the flow reversal. Angle of inclination sustains a retarding effect on velocity distribution. The present study has an immediate application in understanding the drag experienced at the heated and inclined surfaces in a seepage flow.

Kinetics studies on the adsorption of Methyl Orange and Metanil Yellow onto bottom ash: a comparative account.

The focal point of the study lies in the comparative evaluation of the kinetic data involved in the eradication of toxic dyes from waste waters using the adsorption technique. The investigation reveals the dynamic adsorption behavior of two hazardous textile dyes viz. Metanil Yellow and Methyl Orange over bottom ash, an industrial waste material. The impact of several experimental parameters has been inspected using batch mode to acquire information on the ongoing mechanism. The graphical profiles obtained for the adsorption of Metanil Yellow and Methyl Orange onto bottom ash suggested an increase in the adsorption rate with time, with gradual attainment of equilibrium between the adsorbing species and adsorbent. The study revealed that second-order kinetics has been followed in both cases. Adsorption of Methyl Orange over bottom ash followed particle diffusion whereas film diffusion predominated in the case of Metanil Yellow.

The Solution of a Mathematical Model for Dengue Fever Transmission Using Differential Transformation Method

Differential Transformation Method (DTM) is a very effective tool for solving linear and non-linear ordinary differential equations. This paper uses DTM to solve the mathematical model for the dynamics of Dengue fever in a population. The graphical profiles for human population are obtained using Maple software. The solution profiles give the long term behavior of Dengue fever model which shows that treatment plays a vital role in reducing the disease burden in a population.

Comparing Annoyance Potency Assessments for Odors from Different Livestock Animals

(1) Background: When it comes to estimating the annoyance potency of odors, European countries relate to different guidelines. In a previous study we compared complaint rates for different agricultural odors, but due to different guidelines, the results we obtained are hard to generalize. (2) Methods: We compare our findings on complaint rates to Dutch and German findings on annoyance rates, using diverse regression models. We also discuss whether the use of the polarity profile for hedonic odor quality could improve annoyance potency assessment. This is demonstrated by comparing the graphical profiles of two different odor types (swine and cattle). (3) Results: Official complaint rates are comparable to a percentage of annoyed residents. Confounder variables such as personal variables do not greatly contribute to annoyance. However, individual emission sites also showed an important influence on complaints and hence on annoyance. Considering the hedonic quality of odors via the polarity profile method for improving an annoyance potency assessment cannot be recommended when using the given state of the method. This is particularly true when it comes to the rating of specific odors, as the method then seems to lack reliability. (4) Conclusions: Where data on annoyance rates are lacking, complaint data could be used instead.

H-infinity controller with graphical LMI region profile for liquid slosh suppression

This paper presents a H-infinity synthesis with pole clustering based on LMI region schemes for liquid slosh control. Using LMI approach, the regional pole placement known as LMI region combined with design objective in H-infinity controller guarantee a fast input tracking capability and very minimal liquid slosh. A graphical profile of the transient response of liquid slosh suppression system with respect to pole placement is very useful in giving more flexibility to the researcher in choosing a specific LMI region. With the purpose to confirm the design of control scheme, a liquid slosh model is considered to represent the lateral slosh movement. Supremacy of the proposed approach is shown by comparing the results with hybrid model-free fuzzy-PID controller with derivative filter. The performance of the control schemes is examined in terms of time response specifications of lateral tank tracking capability and level of liquid slosh reduction.

A predictive spatio-temporal model for bovine Babesiosis epidemic transmission

The main purpose of this paper is to analyze a new dynamical model pertaining to bovine Babesiosis transmission, and investigate its consequent morphology. We present and study various ramifications of our mathematical model for bovine Babesiosis spread, given, firstly, by a temporal system of ordinary differential equations and, finally, by a spatio-temporal system consisting of reaction-diffusion equations. Diffusion terms are incorporated into the model, using specific derivations for both infected ticks and infected bovines. Furthermore, mechanisms for the nearest neighbors’ infection are integrated into the model. We determine mathematically the basic reproduction number R0 via the next-generation matrix. Then, we analyze the stability of the equilibria and the effects of the mobility of infectious agents, being they either ticks or bovines. Finally, model-based analytical-numerical results are obtained and displayed in graphical profiles. The results of the proposed model and the health ramifications are then raised, discussed and validated.

Closed-Form Coverage Probability in Cellular Networks With Poisson Point Process

For the cellular networks with Poisson point process and general path-loss exponent, we derive a closed-form expression of the coverage probability. Its graphical profile perfectly matches with the one that is obtained by numerical integration.

Global stability analysis of the disease-free equilibrium state of a mathematical model of trypanosomiasis

The global stability analysis represents a compound failure, mechanism which provides lower calculated factors of safety. In this research, the global stability analysis was used to propose a mathematically model of the transmission dynamics and control of Trypanosomiasis, known as African sleeping sickness. We obtained the Disease-free equilibrium state and present graphical profile of some of the compartments. Keywords: Equilibrium state, trypanosome, sleeping sickness, stability

Neuropsychological Test Barcelona-2: Theoretical and Practical Aspects

The Barcelona test (TB) is an instrument of neuropsychological assessment, developed under the influence of Luria’s ideas, and published in 1990 [1]. It explores the main cognitive functions and allows the design of graphic profiles similar to those of the Boston Test for the diagnosis of aphasia. Objective: To present the theoretical and practical characteristics of a new version of the test, the Test Barcelona-2. The new and computerized versions of test structure is described here with six modules established: (1) Language-attention-orientation; (2) Reading and writing; (3) Motorpraxis; (4) Perception-gnosis; (5) Memory; (6) Abstraction-execution. As a novelty, test allows the selection for specific profiles: alpha, beta, abbreviated, aphasia, andecological-forensic approach. The types of variables condition a different statistical approach and a differentiated form of graphic expression. The new test presents a modular structure, which allows determining intra- and inter-module dissociations. Computerization greatly facilitates the work of the clinician. In the case of aphasia the test allows to differentiate easily all its clinical forms.
 Keywords: Test Barceona-2, neuropsychological test; computerized workstation, modular structure

Epidemiological and Nutritional Characteristics of Twin Gestations in A Sample of Brazilian Maternity Hospital

Objective: The aim was to describe socio demo graphic, clinical, obstetric and nutritional profile of twin pregnants receiving prenatal care at a public maternity hospital in Rio de Janeiro. Methods: An analytical and cross-sectional study was conducted from consulting patient records during prenatal care and delivery for adults and teenagers twin pregnancy. Exploratory data analysis included sample description through averages and standard deviation (SD) for continuous variables and proportions for categorical variables. The chi-square test and the Fisher exact test were used to detect association between maternal age (adult or teenager) and independent variables Results: 109 pregnant women were evaluated, 101 were adults and eight were teenagers. Adults and teenagers were similar for the variables pre-pregnancy body mass index (p=0,709), complications during delivery (p=0,638) and postpartum (p=0,674), adequacy of gestational weight gain (p=0,631), gestational age at birth (p=0,791) and type of delivery (p=0,423). The most frequent pregnancy complications were anemia 49(44.9) and hypertensive disorders during pregnancy31(28.4). Prematurity occurred in 52.3% and 92.7% of deliveries were cesarean. Percentage of normal pre-pregnancy body mass index was 53.3%, insufficient weight gain was62.6% and 75.2%were referred a nutritional care during pregnancy. Conclusion: The high prevalence of obstetric complications, caesarean delivery and prematurity are important issues for twin pregnancy. The inadequate total weight gain shows the need for nutritional care during twin pregnancy. Keywords: Twin pregnancy; Nutritional Epidemiology; Prenatal care; Prenatal nutrition

Detection of 1,3-dihydroxyacetone by tris(2,2'-bipyridine)ruthenium(II) electrochemiluminescence.

1,3-Dihydroxyacetone, a common cosmetic material and food additive, has been successfully explored as an efficient electrochemiluminescence coreactant of Ru(bpy)32+ for the first time. It is about 25 times more effective than the well-known coreactant sodium oxalate. The high electrochemiluminescence efficiency allows sensitive detection of 1,3-dihydroxyacetone without any derivatization. The electrochemiluminescence method shows two linear electrochemiluminescence responses over the range of 5.0-500μM and 500μM-6.0mM with a detection limit of 1.79μM. The proposed method is at least two orders of magnitude more sensitive than other reported methods. Graphical abstract ECL intensity-potential profile of 1,3-dihydroxyacetone (DHA) and oxalate.

The choice of variant technologies and materials supported by multicriteria methods and an assessment of variants with graphic profiles of criteria

On many occasions, while executing construction projects, we must solve dilemmas regarding the use of specific technologies and materials. Depending on the purpose and future functions of a building, as well as expectations of its occupants and users, different solutions might prove to be superior. Numerous factors influence the final decision, hence effective tools which support the decision-making process are needed. When many parameters must be taken into consideration, multi-criteria analysis methods appear to be the best choice.Having analyzed many such cases, the author has developed her own approach, which includes a graphic template corresponding to the importance of criteria assigned to a planned building project, to which profiles of the variants submitted to an assessment are compared. The discussed case is the roof structure over a machine shop, in which – due to the intended production – harsh ambient conditions are expected. An analysis was made to evaluate three variants of the roof cover, i.e. based on timber, steel or prestressed ferroconcrete girders.

On the Stability Analysis of a Coupled Rigid Body

In this research article, we investigate the stability of a complex dynamical system involving coupled rigid bodies consisting of three equal masses joined by three rigid rods of equal lengths, hinged at each of their bases. The system is free to oscillate in the vertical plane. We obtained the equation of motion using the generalized coordinates and the Euler-Lagrange equations. We then proceeded to study the stability of the dynamical systems using the Jacobian linearization method and subsequently confirmed our result by phase portrait analysis. Finally, we performed MathCAD simulation of the resulting ordinary differential equations, describing the dynamics of the system and obtained the graphical profiles for each generalized coordinates representing the angles measured with respect to the vertical axis. It is discovered that the coupled rigid pendulum gives rise to irregular oscillations with ever increasing amplitude. Furthermore, the resulting phase portrait analysis depicted spiral sources for each of the oscillating masses showing that the system under investigation is unstable.

A survey of zoonotic nematodes of commercial key fish species from major European fishing grounds—Introducing the FP7 PARASITE exposure assessment study

Harvesting and exploiting limited fisheries resources in a sustainable manner also implies achieving maximum added value from the raw material. However, the presence of parasites in the products may adversely affect consumer perception and/or pose a direct health hazard. As a major stepping-stone of the PARASITE project, an epidemiological survey was carried out to provide the basis for analysis and prediction of consumer exposure risk due to the presence of anisakid nematodes in fish from European wild-catch fisheries. The project consisted of nine separate workpackages (WP) where the exposure risk assessment survey was organized within WP2. The surveillance task also provided the data or samples needed for data management and sample storage (WP3, Biobank), molecular and genetic parasite species identification (WP4), and statistical modelling and inference (WP8). In total 17,760 fish belonging to 16 teleost species were examined for anisakids, with special emphasis on economically and ecologically important species such as Atlantic mackerel, herring, European hake, Atlantic cod and anchovy. The target fish species were sampled at four major European fishing areas including the Barents Sea, North Sea, Baltic Sea, Grand Sole Bank, waters off NW Spain and Portugal, central and western parts of the Mediterranean Sea, and the Adriatic Sea. Thus, the survey represents the largest and most comprehensive epidemiological data compilation of anisakids ever generated in terms of geographical range as well as number of fish host species and sample size. An important requirement of the survey was the use of commonly accepted nematode detection methods, i.e. the UV-press method or artificial digestion, to quantify infection level and spatial distribution of anisakid larvae in the target fish species. The basic layout, set-up and principles of the method, along with a discussion of possible source of errors are described. Additionally, the molecular and genetic markers which were used to identify and characterize different species and populations of anisakids from the targeted fish host species and geographical areas, are reviewed as well. Some basic parasite infection characteristics of each fish host species, and any relationships with the presumably most important infection predictors, i.e. fish host body size and fishing locality, are presented and discussed. Emphasis is put on anisakid occurrence in the flesh of the fish. Based on the findings, a graphical exposure risk profile is introduced, including fish species or products thereof, which due to common processing or preparation practices, are at highest risk to act as source of anisakiasis in Europe.

Optimisation of a machine learning algorithm in human locomotion using principal component and discriminant function analyses.

Assessment methods in human locomotion often involve the description of normalised graphical profiles and/or the extraction of discrete variables. Whilst useful, these approaches may not represent the full complexity of gait data. Multivariate statistical methods, such as Principal Component Analysis (PCA) and Discriminant Function Analysis (DFA), have been adopted since they have the potential to overcome these data handling issues. The aim of the current study was to develop and optimise a specific machine learning algorithm for processing human locomotion data. Twenty participants ran at a self-selected speed across a 15m runway in barefoot and shod conditions. Ground reaction forces (BW) and kinematics were measured at 1000 Hz and 100 Hz, respectively from which joint angles (°), joint moments (N.m.kg-1) and joint powers (W.kg-1) for the hip, knee and ankle joints were calculated in all three anatomical planes. Using PCA and DFA, power spectra of the kinematic and kinetic variables were used as a training database for the development of a machine learning algorithm. All possible combinations of 10 out of 20 participants were explored to find the iteration of individuals that would optimise the machine learning algorithm. The results showed that the algorithm was able to successfully predict whether a participant ran shod or barefoot in 93.5% of cases. To the authors’ knowledge, this is the first study to optimise the development of a machine learning algorithm.

Exploring the potential energy surface of novel [H, S, Se, Br] species: a high level first principle study.

The characterization of the seleno-sulfide-bromo systems and the isomerization process on the [H, S, Se, Br] potential energy surface were investigated using state-of-the-art theoretical methods. The CCSD(T) and the MP2 levels of theory were employed along with the series of correlation consistent basis sets extrapolated to the complete basis set (CBS) limit in the optimization of the geometrical parameters and computation of electronic energies. The relative stability, in kcal mol-1, at the CCSD(T)/CBS follows the trend: HSSeBr (0)>HSeSBr (9.51)>SSeHBr (24.02)>SeSHBr (25.42). This order was observed in the previous study of the [H, S, Se, Cl] species. The structural parameters and vibrational frequencies of the [H, S, Se, Br] species are reported. This research work should be helpful to experimentalists in order to gain insights into these novel heteroatom molecules. Graphical abstract Relative energy profile (in kcal mol-1) using the CCSD(T)/CBS and MP2/CBS (in parentheses) method of the stationary states on the [H, S, Se, Br] PES.

The relation between academic and professional competences in the graphic designer profile

Estudi de cas a EINA Centre Universitari de Disseny i Art de Barcelona que es formalitza en la construcció d’un sistema de diagnosi que identifiqui el nivell d’ajustament entre les competències acadèmiques impartides en el centre universitari i les competències professionals requerides en l’àmbit professional del disseny gràfic. Vol ser una eina que ajudi a conèixer les demandes de l’àmbit professional del sector, així com a actualitzar les competències del Grau de Disseny.

El Museo Thyssen-Bornemisza: evaluando sus programas educativos para enseñar arte

This work rises up from the obtained results of the R&D Project “Qualitative Evaluation of Educative Programs in the Spanish Museums” (in spanish, E.C.P.E.M.E, “Evaluacion Cualitativa de Programas Educativos en Museos Espanoles”) developed in 13 different museums. Through mixed direct observation protocols of the qualitative methodology, it’s possible to access to an evaluation of the educative action effectiveness by using a tool (multicategory assessment), which allows to get a graphic profile, showing all the assessments converted from qualitative forms into figures. After presenting the research project, the outcomes obtained in the specific case of the Thyssen-Bornemisza Museum are analyzed in the next lines, highlighting the importance of the programs to teach art.