Physical Instruments Research Articles

Influence of Sandblasting on Bonding Strength to Intact Enamel: Roughness, Surface Energy, and Micro-Shear Bond Strength Analysis

Objectives: The study aimed to evaluate the enamel roughness, surface energy, and micro-shear bond strength due to sandblasting with 53 μm aluminum oxide, etching with 37% phosphoric acid, and sandblasting plus etching. Methods: One hundred bovine teeth were used in this study. Samples were prepared with one of three different treatments: G I; intact enamel ( IE ), G II; enamel treated with 37% phosphoric acid ( AE ), G III; enamel surface conditioned with 53 μm Al2O3 particles ( SB ), and G IV; enamel treated with alumina oxide particle followed by phosphoric acid etching ( SBAE ). The surface roughness was measured using a Zeiss Axio Imager M1m + phase view Profilometry (Non-contact roughness measurement) and a Portable Surface Roughness Tester (Surftest SJ-310; Mitutoyo America, Aurora, IL) for contact roughness measurement. All samples were subjected to surface energy tests using Data Physics Instruments (USA Corp). Finally, a cylinder of Filtek™ Supreme Ultra composite resin was bonded to treated enamel surface using Scotchbond™ Universal Adhesive or bottle 3 Adper™ Scotchbond™ Multipurpose. All samples were subjected to a micro-shear test using a Chatillon TCD200 (Johnson scale co. INC, Lane Pine Brook, NJ. 07058).Results: A one-way ANOVA test revealed that the average surface roughness (Ra) and surface energy tests differed significantly between groups. Ra values of the treated enamel surfaces ranged between 0.2 to 0.7μm in the non-contact roughness test. Ra values in the contact roughness test ranged between 0.08 to 0.6μm. The roughness data showed a significant difference between groups (P < 0.001). The higher roughness values were obtained by SB and SBAE groups. Roughness and contact angle influenced the μSBS. The bonding strength of Scotchbond™ Universal Plus Adhesive to enamel sandblasted-plus-acid-etched enamel demonstrated high μSBS values compared to other groups. The μSBS values of the six groups ranged from 32 to 8.7 MPa. The bonding strength was significantly different between groups (P < 0.001). There was no significant difference between G5 (SB) and G6 (AE) using bottle 3 Adper™ Scotchbond. All the groups showed various mixed failures, adhesive and cohesive failure based on the types of the adhesive system. Significance: Sandblasting plus acid etching increase enamel roughness with a significant influence on various liquids' wettability. Compared to other groups, samples subjected to airborne particles showed significantly higher bond strengths of composite restorations using Scotchbond™ Universal Plus Adhesive.

The development of learning media and critical thinking skill instrument based on 5E learning cycle model on harmonic vibration material

This study aims to produce products in the form of learning media and instruments based on the 5E learning cycle model on harmonic vibration material. It is development research using the ADDIE model consisted of 5 stages: analysis, design, development, implementation, and evaluation stages (this study was limited to the development stage). The products developed were Syllabus, Lesson Plan, Student Worksheets, and Critical Thinking Skill Instruments in Physics. The feasibility of the learning media and instrument developed was measured by three experts’ validation by calculating the validity and reliability values of the media and instrument. The validity results based on the experts’ assessment showed that the score of the syllabus was 3.70 with very valid criteria. The Lesson Plan was 3.66 with very valid criteria; the LKPD was 3.66 with very valid criteria, and the Critical Thinking Skill Instrument in Physics was 3.63 included in the very valid criteria. The reliability results of the syllabus were 94.52%, the Lesson Plan was 90.36%, the LKPD was 91.78%, and the Critical Thinking Skill Instrument in Physics was 93.62%, indicating that all aspects assessed had a reliable category. Based on these results, it can be concluded that the learning media and instrument developed are feasible to use in learning to improve students' critical thinking skills in Physics on harmonic vibrations material.

Exploring learning outcomes of science experiments using physical instrument and substances assisted by digital entities

ABSTRACT Physical experiments on real-world systems are proposed as a means to raise learning outcomes and Arduino microcontroller is highlighted as an appropriate tool to perform them. However, experimentation on a real system may encounter various barriers. Therefore, a learning environment was developed in order to perform Arduino experiments on digital entities when the real ones are inaccessible. That was consisted of an Arduino-based pH meter from which measurements were transmitted to three different digital entities: a shoal of goldfish, an ancient Greek temple and an ancient Greek statue. In order to evaluate the learning outcomes of teaching through physical experiments on digital entities, a pre- to post-comparison was conducted on three Greek Junior High Schools. In each school, students were divided into two subgroups. The one group was taught about Acids and Bases through physical Arduino experiments by demonstration, using real instruments and substances, with a simultaneous observation of their effects on the digital entities in real-time, while the other group was taught through the same Arduino experiments by demonstration without the use of the digital entities. The results have demonstrated that students of the former group exhibited greater learning gains regarding Declarative Knowledge than those of the latter one.

Development of Science Literacy Assessment Based on Multi Representation of Rectilinear Motion Concept to Investigate Students' Science Literacy Competencies

There have been many assessment instruments developed to measure student science literacy. However, literacy measurement instruments that pay attention to various intelligences and are reflected in the context of multiple representations have not been developed much. On the other hand, it is important to give every student the opportunity to succeed at his intelligence level. This study aims to determine the feasibility of a multi-representation based scientific literacy assessment instrument for high school physics on rectilinear motion concept as well as to describe students' scientific literacy skills and the mastery pattern of the rectilinear motion concept measured by the instrument developed. This research is a Research &amp;amp; Development (R&amp;amp;D) research. The test subjects were 262 high school students who had studied rectilinear motion concept in public high schools with A-accreditation. Data analysis conducted were validity test of instruments by experts; empirical test to obtain validity, reliability, difficulty level, and item difference; student responses to test offerings; profile of scientific literacy skills; and the pattern of mastery of the rectilinear motion concept. From the measurement results, it is evident that the profile of the average scientific literacy ability of high school students is still in the unsatisfactory category. The pattern of mastery of the concept of straight motion based on the modes of representation ranging from the most difficult to the easier ones is graphical, pictorial, verbal, and mathematical representations. This data could indicate that learning by practicing literacy skills still can be improved.

Physical Activity and Sleep Quality of Elderly During The COVID-19 Pandemic Period

COVID-19 pandemic has caused the changes on the physical activity of elderly. Physical activity can affect the sleep quality of elderly. This research aims to analyze the correlation between physical activity and quality of sleep during the COVID-19 pandemic at UPT PSTW Bondowoso. This research uses a cross sectional study design. There are 44 samples of elderlies using consecutive sampling. The instrument of this research is the characteristics of the elderly questionnaire. The elderly's physical activity instrument uses the Physical Activity Scale for Elderly (PASE) and the elderly's sleep quality uses Pitssburgh Sleep Quality Index (PSQI). The analysis of research data uses Spearman-rho (p-value &lt;0.05). The results show that on physical activity, the median result (69.98) and good sleep quality (65.9%). The result of the correlation test shows that there is a correlation between physical activity and sleep quality (r = -0,364; p = 0,015). The conclusion of this research, is that the important of physical activity in maintaining the quality of sleep. Therefore, elderly should maintain physical activity to obtain a good sleep quality.

Predictive Validity of the Physical Resilience Instrument for Older Adults (PRIFOR).

This study aimed at evaluating the predictive ability of the Physical Resilience Instrument for Older Adults (PRIFOR) for the recovery of frailty, activity of daily living (ADL), and quality of life in older adults suffering from acute health stressors. The longitudinal study was adopted and patients aged 65 and older with Clinical Frailty Scale (CFS) scores between 4 and 6 were included. The PRIFOR was used to assess physical resilience at baseline. Katz ADL, CFS and EuroQoL 5-dimension Questionnaire (EQ5D) scores were all assessed at baseline and one month after discharge. The mean age of the 192 participants was 76.29 ± 6.53 years, and 50.5% were female. After adjusting for the baseline condition, the PRIFOR was only significantly associated with the CFS (β=-0.183, p<0.001) at one month after discharge. Our study results provide evidence of the predictive capacity of the PRIFOR for recovery from frailty.

Template Instrumentation for "Accurate Constant via Transient Incomplete Separation".

Accurate Constant via Transient Incomplete Separation (ACTIS) is a new method for finding the equilibrium dissociation constant Kd of a protein-small molecule complex based on transient incomplete separation of the complex from the unbound small molecule in a capillary. This separation is caused by differential transverse diffusion of the complex and the small molecule in a pressure-driven flow. The advection-diffusion processes underlying ACTIS can be described by a system of partial differential equations allowing for a virtual ACTIS instrument to be built and ACTIS to be studied in silico. The previous in silico studies show that large variations in the fluidic system geometry do not affect the accuracy of Kd determination, thus, proving that ACTIS is conceptually accurate. The conceptual accuracy does not preclude, however, instrumental inaccuracy caused by run-to-run signal drifts. Here we report on assembling a physical ACTIS instrument with a fluidic system that mimics the virtual one and proving the absence of signal drifts. Furthermore, we confirmed method ruggedness by assembling a second ACTIS instrument and comparing the results of experiments performed with both instruments in parallel. Despite some unintentional differences between the instruments (caused by tolerances in sizes, positions, etc.) and noticeable differences in their respective separagrams, we found that the Kd values determined for identical samples with these instruments were equal. Conclusively, the fluidic system presented here can serve as a template for reliable ACTIS instrumentation.

Audio Enhancement of Physical Models of Musical Instruments Using Optimal Correction Factors: The Recorder Case

A simulation of a musical instrument is considered to be a successful one when there is a good resemblance between the model’s synthesized sound and the real instrument’s sound. In this work, we propose the integration of physical modeling (PM) methods with an optimization process to regulate a generated digital signal. Its goal is to find a new set of values of the PM’s parameters’ that would lead to a synthesized signal matching as much as possible to reference signals corresponding to the physical musical instrument. The reference signals can be: (a) described by their acoustic characteristics (e.g., fundamental frequencies, inharmonicity, etc.) and/or (b) the signals themselves (e.g., impedances, recordings, etc.). We put this method into practice for a commercial recorder, simulated using the digital waveguides’ PM technique. The reference signals, in our case, are the recorded signals of the physical instrument. The degree of similarity between the synthesized (PM) and the recorded signal (musical instrument) is calculated by the signals’ linear cross-correlation. Our results show that the adoption of the optimization process resulted in more realistic synthesized signals by (a) enhancing the degree of similarity between the synthesized and the recorded signal (the average absolute Pearson Correlation Coefficient increased from 0.13 to 0.67), (b) resolving mistuning issues (the average absolute deviation of the synthesized from the recorded signals’ pitches reduced from 40 cents to the non-noticeable level of 2 cents) and (c) similar sound color characteristics and matched overtones (the average absolute deviation of the synthesized from the recorded signals’ first five partials reduced from 41 cents to 2 cents).

Old instruments in the physics and chemistry cabinet at Goya Secondary School. Analysis of their didactic use in teaching physics today (Los antiguos instrumentos del gabinete de física y química del IES Goya. Análisis de su uso didáctico en la actual enseñanza de la física)

ABSTRACT This article presents a study on the instruments in the old physics and chemistry cabinet at Goya Secondary School in Zaragoza (Spain). The first goal was to analyse the evolution in the acquisition time of these instruments classified by disciplines and to study these instruments’ historical didactic functions. The second goal was to promote the process of recovering several instruments to learn about their didactic value today based on analysing how this process intervenes in students’ learning physics. The majority of the instruments were used in the past to demonstrate laws related to fluids, forces, light, sound, electricity and magnetism. Some of these instruments were revived via a project in which current secondary students work experimentally and autonomously. The results show that through this project, these students gained complex knowledge about the disciplines they worked on and even formulated hypotheses.

Perception of physical literacy among secondary school physical education teachers

Introduction: Physical literacy (PL) is important among children and teenagers. Studies have shown that children with high level of PL tend to be more active and not only is an active lifestyle linked to lower risk of metabolic disease, it's also associated with better academic results. Physical Education (PE) curriculum in school is aimed to develop PL among school children and PE teachers plays an important role in achieving that goal. Although PE teachers are models of people with good PL, PE teachers in schools does not necessarily take this into account. Aim: The purpose of this study was to identify the level of perception PL among PE teachers in Malaysia. Methods: This quantitative study involved secondary school PE teachers (N=100) from Miri, Sarawak. Physical literacy was measured using the Perceived Physical Literacy Instrument (PPLI). Results: This study found that the overall level of PL is high among PE teachers (M = 4.23 ± 0.39) with no significant difference between gender, location and teaching experience. However, PE teachers who majored in PE have a significantly higher PL compared to PE teachers who were not PE majors. Conclusions: The significantly higher PL among PE teachers who majored in PE shows that they may be more suitable to teach PE. Whenever possible, PE should be taught by subject-qualified teachers for PE to be effective in developing PL among students.

Effects of Health-Related Fitness Model to Improve Physical Fitness and Physical Activity in Vocational High School Students

Physical activity and physical fitness have a vital role in enhancing a healthy and active lifestyle for individuals. This study aimed to see the impact of providing a health-related fitness model on physical improvement and vocational high school students' physical activity. The experimental method with randomized control group pretest-posttest design was applied in this research. The sample selection was based on random cluster sampling to select two classes as the experimental group and the control group consisting of 33 students each, with an age range of 16-17. The instruments used in this study were physical fitness test instruments and students' physical activity tests. The data analysis technique used the Mann-Whitney test and t-test to determine the difference in influence between the experimental and control groups. The results showed that overall, the two groups had a positive impact on the improvement of students' physical fitness and physical activity. However, the experimental class showed a significant increase compared to the control class on the physical fitness variable. Meanwhile, in the physical activity variable, there was no significant difference between the two groups. From these findings, the researchers concluded that the health-related fitness model and the direct instruction model could be applied as an alternative for teachers to improve physical fitness and physical activity for vocational high school students. Furthermore, the researcher explicitly suggests the use of health-related fitness models to improve students' physical fitness.

Household food insecurity and children's physical activity and sedentary behaviour in the United States: the Healthy Communities Study.

To examine associations between household food insecurity and children's physical activity and sedentary behaviours. Secondary analysis was conducted on the Healthy Communities Study, an observational study from 2013 to 2015. Household food insecurity was assessed by two items from the US Department of Agriculture's 18-item US Household Food Security Survey Module. Physical activity was measured using the 7-d Physical Activity Behaviour Recall instrument. Data were analysed using multilevel statistical modelling. A total of 130 communities in the USA. In sum, 5138 US children aged 4-15 years. No associations were found for the relationship between household food insecurity and child physical activity. A significant interaction between household food insecurity and child sex for sedentary behaviours was observed (P = 0·03). Additional research capturing a more detailed assessment of children's experiences of food insecurity in relation to physical activity is warranted. Future studies may consider adopting qualitative study designs or utilising food insecurity measures that specifically target child-level food insecurity. Subsequent research may also seek to further explore sub-group analyses by sex.

Products of Interest

Products of Interest

Development of a critical thinking skill instrument for physics and chemistry students in higher education

Critical thinking skill is one of the essential skills needed in the 21st century. Besides being improved through a learning process, critical thinking skill also can be acquired through the evaluation. This study aims to determine the validity and reliability of a critical thinking skill instrument. The research method used is Research and Development (R&D) with the ADDIE model and a quantitative descriptive analysis. The participant of the study are fifty 2nd semester students majoring in Physics and Chemistry. This test consists of sixteen reasoned multiple-choice items. The data are collected by using test and questionnaire. Expert validation shows that this instrument is well categorized with a percentage of 90%. This result shows that the instrument is reliable with a reliability of 0.71. The implementation shows that students’ critical thinking skill is low with a score 10.1 out of 64.

A Symposium on the Clinic of the Future and Telehealth: Highlights and Future Directions.

Children’s National Hospital held a virtual symposium on “The Clinic of the Future and Telehealth” in December 2020. The goal of the symposium was to explore future trends in these domains. We also discussed how the coronavirus disease 2019 (COVID-19) pandemic accelerated ongoing changes in healthcare. We explored what is on the horizon in these fields and how these changes might affect care delivery in the future. Specifically, we discussed the “Clinic of the Future” with clinical teams from genetics and metabolism, orthopedic surgery, and primary care while our telehealth discussion involved genetics and metabolism, psychiatry, and telerehabilitation. As one example, wearable technology could be adopted among primary care practices and drive a shift in outpatient care from center-based care to patient-based care. We also examined technological innovations in physical exam instruments, gait analysis, imaging integration, and cast technology that could modernize the orthopedic surgery clinic. Telemedicine has rapidly expanded among all fields of medicine, especially since the COVID-19 pandemic, and has spurred innovation to improve the effectiveness of virtual physician visits. The development of technology to improve the virtual physical exam, during a telemedicine visit, further increases the utility of online appointments and increases access to care in all specialties. The incorporation of photogrammetry technology, in genetics and metabolism dysmorphology exams, will offer standardized tracking of patients that could improve diagnosis and treatment. Psychiatry has found nearly equal efficacy in diagnosis and treatment with telehealth visits and the additional benefit of gaining insight in the setting of the patients’ home. Robotics has become increasingly common in rehabilitation, which can now incorporate a gaming experience that can be remotely updated and increase engagement and adherence in pediatric patients. The continued exploration of new ideas promises to improve both in-person and virtual care options.

The importance of size ranges in aerosol instrument intercomparisons: a case study for the Atmospheric Tomography Mission

Abstract. Aerosol intercomparisons are inherently complex as they convolve instrument-dependent detection efficiencies vs. size (which often change with pressure, temperature, or humidity) and variations in the sampled aerosol population, in addition to differences in chemical detection principles (e.g., inorganic-only nitrate vs. inorganic plus organic nitrate for two instruments). The NASA Atmospheric Tomography Mission (ATom) spanned four separate aircraft deployments which sampled the remote marine troposphere from 86∘ S to 82∘ N over different seasons with a wide range of aerosol concentrations and compositions. Aerosols were quantified with a set of carefully characterized and calibrated instruments, some based on particle sizing and some on composition measurements. This study aims to provide a critical evaluation of inlet transmissions impacting aerosol intercomparisons, and of aerosol quantification during ATom, with a focus on the aerosol mass spectrometer (AMS). The volume determined from physical sizing instruments (aerosol microphysical properties, AMP, 2.7 nm to 4.8 µm optical diameter) is compared in detail with that derived from the chemical measurements of the AMS and the single particle soot photometer (SP2). Special attention was paid to characterize the upper end of the AMS size-dependent transmission with in-field calibrations, which we show to be critical for accurate comparisons across instruments with inevitably different size cuts. Observed differences between campaigns emphasize the importance of characterizing AMS transmission for each instrument and field study for meaningful interpretation of instrument comparisons. Good agreement (regression slope =0.949 and 1.083 for ATom-1 and ATom-2, respectively; SD =0.003) was found between the composition-based volume (including AMS-quantified sea salt) and that derived from AMP after applying the AMS inlet transmission. The AMS captured, on average, 95±15 % of the standard PM1 volume (referred to as the URG Corp. standard cut 1 µm cyclone operated at its nominal efficiency). These results support the absence of significant unknown biases and the appropriateness of the accuracy estimates for AMS total mass and volume for the mostly aged air masses encountered in ATom. The particle size ranges (and their altitude dependence) that are sampled by the AMS and complementary composition instruments (such as soluble acidic gases and aerosol, SAGA, and particle analysis by laser mass spectrometry, PALMS) are investigated to inform their use in future studies.

Teacher Readiness to teach Quantum Physics (TRQP): An Instrument for Form Five Physics Teacher in Secondary School

This study aims to determine the validity and reliability of Teacher Readiness to teach Quantum Physics (TRQP) instrument using Rasch Measurement Model. The TRQP was developed to measure the level of teacher readiness to teach quantum physics in secondary schools. TRQP consisted of 41 items containing three constructs namely: content knowledge, attitudes, and readiness. The research sample consisted of 30 Form Five Physics teacher from secondary schools in Sabah. The results of the validity analysis found that the polarity of the items through the PTMEA-CORR values showed that all 41 items were &gt; 0.00 (+). Through item fit analysis, all items were retained because they met the requirements in one of the MNSQ, Outfit ZSTD, and PTMEA-CORR outfit ranges. In the Principal Component Analysis (PCA), the Raw Variance Explained by Measures value of 40.6% and the Unexplained variance value in the first to fifth contrast below 15% indicates that the instrument has a strong dimensional dimension and has high construct validity. The reliability of Cronbach Alpha (KR20) showed a value of 0.87 (high), item reliability of 0.88 (very good), and person reliability of 0.81 (good) with separation item value of 2.73 (good) and separation person value of 2.04 (good). In conclusion, TRQP has good validity and reliability in measuring the level of teacher readiness to teach quantum physics in terms of content knowledge and attitudes among Form Five Physics teachers in secondary schools.

Preparation and characterization of triangular hollow porous polyacrylonitrile fiber made by coaxial wet spinning

AbstractHollow porous fiber with both hollow and mesoporous structural characteristics can play an important role in storage, adsorption, and other fields. Triangular hollow porous fiber was prepared by coaxial wet spinning in this paper. Polyacrylonitrile (PAN) and N‐N dimethylformamide (DMF) were blended to get cortical solution. Polyvinylpyrrolidone (PVP) and DMF were blended to get core solution. Subsequently, coaxial triangular spinneret was adopted to inject solution into coagulation bath for double diffusion and obtain primary fiber. Then PAN‐based triangular fiber with high porosity was prepared after washing and drying. Scanning electron microscopy, nitrogen physical adsorption instrument, thermogravimetric analyzer, and other instruments were used to test and characterize. The results show that the cross‐section of the fiber is triangular and has a sense of luster. The hollow degree of the fiber is as high as 84.17%, and the sheath has three‐level structure with multi‐scale pore diameters, including micropores (200 μm), submicron pores (200 nm), and nanopores (20 nm). Through the range analysis of orthogonal experiment, it is found that the concentration of cortical solution is the main factor affecting the fiber tensile strength. When the concentration of cortical solution is 17%, the concentration of core solution is 10%, the flow rate ratio of cortical solution to core solution is 10:1, and the concentration of coagulation bath is 10%, the fiber tensile strength reaches 1.43 N/mm2. The thermal insulation performance of fiber is better than that of silk, cotton and polyester. The results in this paper will provide an experimental foundation for the design and application of hollow porous profiled fibers.

WITHDRAWN: To Develop Indonesian Version of The Influence on Physical Activity Instrument for Community-Based Obese Adults: Cross-Cultural Validation and Psychometric Testing

Insufficient physical activity is a public health concern in Indonesia, but there are no valid Indonesian tools for exploring the influences. Due to cultural and contextual differences, the Indonesian version of the Influence on Physical Activity Instrument (IPAI-I) was developed and tested the psychometric properties in community obese-adults. The cross-sectional study enrolled 846 obese-adults in Indonesian community health-centre. The IPAI was translated with culturally appropriate Indonesian. Using Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) assessed the psychometric properties. The scale reliability was tested by Cronbach's α for internal consistency and intra-class correlation coefficient (ICC) for stability. Through EFA via Principal Axis Factoring with Oblimin rotation, the 21-item IPAI-I exhibited cross-cultural appropriateness, readability with three factors in the individual domain, one factor in the support domain, and two factors in the environment domain. The indices of good fit model for three domains testing by a second-order CFA was achieved at χ2/df=1.5, goodness of fit index = .93, root mean square error of approximation = .039 (p < .001). Furthermore, a high correlation (r = .52; p < .001) was between the support domain and the environment domain, but the two domains had a very low correlation with the individual domain, respectively. The test-retest reliability was by ICC with .73 - .92 and Cronbach's α with .82 - .91 among six-factor, respectively. The IPAI-I is a valid, reliable instrument to assess in Indonesian context. Enhancing ecological effects are high-priority to increase physical activity for community obese-individual.

Включенность перфекционистов в социально-трудовые отношения при разных стилях управления персоналом

Research into personal qualities of employees is acquiring relevance in the modern society as physical and material means and instruments of production are gradually being excluded from immediate interaction with people; their place is being taken by robotic technologies; whereas human labour is turning into intellectual creativity. Perfectionism is one of personal construct characteristics, which allows them to achieve high goals, overcoming different obstacles. The aim of the work was to consider the involvement of employees, characterized by perfectionistic personal construct, in social and labour relations under the authoritarian, democratic and liberal management styles. Perfectionists known for their struggle for high achievements are inclined to work individually and characterized by a low level of socialization. Under the authoritarian style, managers usually diminish individual achievements, focusing on the importance of goals and objectives rather than personality types of employees; therefore, perfectionists risk turning into reserved unsocial individuals. The democratic and liberal personnel management styles give the possibility to integrate perfectionists in teamwork, to activate their positive personal qualities and, in this way, enable them to meaningfully socialize. The democratic and liberal management styles provide conditions for successful combination of personal perfectionist interests and socially relevant objectives. In the age of information-oriented society, targeted at intensive intellectual development, contribution of perfectionists is indispensable; however, it is necessary to facilitate their social integration underlying inseparability of their individual goals and socially significant objectives.