The application of the Raman Spectroscopy Method for Evaluating Implants from the Dura Mater

The results of a comparative spectral evaluation of the component composition of the surfaces of implants from the dura mater manufactured using the Lioplast technology with the use of ultrasound and sterilization are presented. Based on the analysis, coefficients were introduced reflecting the change in the relative concentration of components that determine the quality of the implants. It is established that Raman spectroscopy can be used to assess the change in the composition of implants based on the dura mater during their manufacture. Keywords: Raman spectroscopy, coefficients, spectral features, implants, dura mater

Психологический анализ экстремальных ситуаций в профессиональной деятельности работников Государственной уголовно-исполнительной службы Украины

Розкрито специфіку професійної діяльності працівників Державної кримінально-виконавчої служби України (ДКВС). Охарактеризовано екстремальні ситуації, що виникають у цій діяльності, та психологічні наслідки діяльності працівників ДКВС в особливих умовах. Обґрунтовано напрями професійно-психологічної підготовки працівників ДКВС. Запропоновано розробити і впровадити цілісну програму психологічного супроводження розвитку стресостійкості та саморегуляції у працівників ДКВС.The specifics of professional activity of the employees of the State Penitentiary Service of Ukraine (SPS of Ukraine) have been revealed. It has been noted that specific features of professional activity of the employees of the State Penitentiary Service of Ukraine are due to: specific conditions of official activity; shortcomings in the organization of official activities; the presence of risk; constant communication with convicts; the occurrence of negative personal changes of employees; the presence of conflict interaction between the various services of penitentiary institutions. The extreme situations that arise in this activity and psychological consequences of the activity of the employees of the State Penitentiary Service of Ukraine in special conditions have been characterized. The author has distinguished the following types of extreme situations: transitive; ongoing; with the element of uncertainty; those that need readiness for extreme actions; those that simultaneously include unexpectedness and lack of time; with the receipt of false information; dominant state; critical situations. The stress-factors affecting the employees of the State Penitentiary Service of Ukraine in extreme situations of professional activity have been provided. Psychological consequences of the activity of the employees of the State Penitentiary Service of Ukraine in extreme conditions of professional activity include: the state of anxiety associated with manifestations of psycho-somatic illness; the state of fatigue that is manifested in the impossibility of performing professional activity; cases of “shock”, the emergence of which is associated with emergency situations; asocial behavior, which is manifested in the inflexibility or, vice versa, in the employee’s oppression. The directions of professional and psychological training of the employees of the State Penitentiary Service of Ukraine have been substantiated. The development and implementation of an integral program of psychological support for the development of the ability to cope with stress and self-regulation among the employees of the State Penitentiary Service of Ukraine has been offered.Раскрыта специфика профессиональной деятельности работников Государственной уголовно-исполнительной службы Украины (ГУИС). Охарактеризованы экстремальные ситуации, возникающие в этой деятельности, и психологические последствия деятельности работников ГУИС в особых условиях. Обоснованы направления профессионально-психологической подготовки сотрудников ГУИС. Предложено разработать и внедрить целостную программу психологического сопровождения развития стрессоустойчивости и саморегуляции у работников ГУИС

How to get around the stress-traps in the students’ life and avoid the stress acute angles.

This paper aims to reveal the ways of forming the sanogenic anti-crisis person’s qualities. The main socio-psychological determinants causing the students’ stress (mainly, the large training load, conflicts in the group, unwillingness to study, fear of the future) and stress symptomatology (in a great part of the emotional-physiological nature: anxiety, fear, headache, lack of time, low working capacity) were identified. As it was defined, many students use spontaneously the destructive methods of stress relieving (alcohol, smoking, internet, television). A wide range of fatigue, overload and stress symptoms, arising at the interpersonal and personal level, was observed. The system of sanogenic organizational and psychological ways of stress suppression has been elaborated (i.e., Reiki recovering system, medita-tion, game trainings of cognitive processes)

Cross-sections for the 27 ⁣Al(γ,x)24Na{^{27}\!\rm{Al}}(\gamma,\textit{x})^{24}\rm{Na} multiparticle reaction at EγmaxE_{\rm{\gamma max}} = 40 ÷\div 95 MeV

The bremsstrahlung flux-averaged cross-sections $\langle{\sigma(E_{\rm{\gamma max}})}\rangle$ and the cross-sections per equivalent photon $\langle{\sigma(E_{\rm{\gamma max}})_{\rm{Q}}}\rangle$ were measured for the photonuclear multiparticle reaction $^{27}\!\rm{Al}(\gamma,\textit{x}; \textit{x} = {^{3}\rm{He}} + pd + 2pn)^{24}\rm{Na}$ at bremsstrahlung end-point energies ranging from 40 MeV to 95 MeV. The experiments were performed using the beam from the NSC KIPT electron linear accelerator LUE-40 with the use of the $\gamma$-activation technique. The bremsstrahlung quantum flux was calculated with the program GEANT4 and, in addition, was monitored by means of the $^{100}\rm{Mo}(\gamma,n)^{99}\rm{Mo}$ reaction. The cross-sections $\sigma(E)$ were computed using the TALYS1.9 code with the default options. The measured average cross-sections $\langle{\sigma(E_{\rm{\gamma max}})}\rangle$ and $\langle{\sigma(E_{\rm{\gamma max}})_{\rm{Q}}}\rangle$ have appeared to be higher by factors of 2.0 to 2.4 than the theoretical results. The experimental results have been found to be in good agreement with the data of other laboratories. Consideration is given to special features of calculation of $\langle{\sigma(E_{\rm{\gamma max}})}\rangle$ and $\langle{\sigma(E_{\rm{\gamma max}})_{\rm{Q}}}\rangle$ for the $^{27}\!\rm{Al}(\gamma,\textit{x})^{24}\rm{Na}$ reaction, with occurrence of three $^{27}\!\rm{Al}$ photodisintegration channels. The paper also discusses the possibility of using the $^{27}\!\rm{Al}(\gamma,\textit{x})^{24}\rm{Na}$ reaction for monitoring the bremsstrahlung $\gamma$-quantum flux in the photon energy region above 30 MeV.Comment: 16 pages, 6 figures, 1 tabl

Some complex intensification features of spheroidizing annealing of low carbon steel

The paper considers complex intensification features of spheroidizing annealing of low-carbon steels and possible technological realizations of intensive annealing modes in current lines. The research aims to reveal the intensification nature of the steel’s spheroidizing due to the non-isothermal holding and an internal coolant for the metal heating. That allows a significant reduction of the spheroidizing annealing process while improving the steel product’s technological properties – providing a high dispersion and homogeneity of the structure across the entire plane of its section. The multiprocessor computing system with its mathematical and IT software for modeling the heat treatment modes of metal billets effectively controls the processes

Харківська наукова школа екстремальної юридичної психології: історія становлення та перспективи розвитку

Тімченко, О. В. Харківська наукова школа екстремальної юридичної психології: історія становлення та перспективи розвитку / О. В. Тімченко // Вісник Національного університету внутрішніх справ. – 2004. – Вип. 28. – С. 462-466.Розглянуто історію становлення та перспективи розвитку Харківської наукової школи екстремальної юридичної психології. Запропоновано низку рекомендацій щодо вирішення зазначених питань. Рассмотрена история становления и перспективы развития Харьковской научной школы экстремальной юридической психологии. Предложен ряд рекомендаций по решению указанных вопросов. The history of formation and prospects of development of the Kharkov scientific school of extreme legal psychology is considered. A number of recommendations are offered to address these issues

Some complex intensification features of spheroidizing annealing of low carbon steel

The paper considers complex intensification features of spheroidizing annealing of low-carbon steels and possible technological realizations of intensive annealing modes in current lines. The research aims to reveal the intensification nature of the steel’s spheroidizing due to the non-isothermal holding and an internal coolant for the metal heating. That allows a significant reduction of the spheroidizing annealing process while improving the steel product’s technological properties – providing a high dispersion and homogeneity of the structure across the entire plane of its section. The multiprocessor computing system with its mathematical and IT software for modeling the heat treatment modes of metal billets effectively controls the processes

Raman spectroscopy analysis of dental enamel organic and mineral composition: an experimental non-randomised study

Background. Contemporary dental diagnosis should supplement clinical examination with instrumental diagnostic techniques. Raman spectroscopy has become widely adopted due to high spatial resolution, non-invasiveness, the lack of strict requirements and ease of sample preparation.Objectives. A qualitative assessment of enamel mineral and organic composition dynamics using Raman spectroscopy.Methods. Raman spectroscopy was used as primary research method. The trial bench consisted of a Shamrocksr-303i high-resolution digital spectrometer with built-in DV420A-OE cooled optical detector (spectral range 200–1200 nm), RPB-785 optic fibre scattering probe integrated with LuxxMaster LML-785.0RB-04 laser source with wavelength 785 nm.Software spectrum processing was performed with Wolfram Mathematica 9. Spectra were denoised with a median filter (5 points), the approximating line (fifth order polynomial) of autofluorescent component was determined in 700–2200 cm-1 range using an iterative algorithm and then subtracted to receive isolated Raman spectra.Linear discriminant analysis (LDA) of data was performed with the IBM SPSS Statistics package. Results. The assay included 28 teeth, with 14 extracted for orthodontic indications and 14 — for chronic periodontitis. Spectral dental enamel dynamics has been established in periodontal disease and after the in-office bleaching procedure. The evidence obtained can be applicable in dental practice to verify patients at risk of periodontal disease by interpreting the tooth enamel spectral properties, as well as prior to in-office bleaching.Conclusion. We demonstrate high efficiency of Raman spectroscopy for qualitative assessment of the mineral and organic enamel composition dynamics in various settings. Raman spectroscopy is confirmed effective and versatile in various aetiologies. It was successfully applied to diagnose periodontitis by changes in the organic and mineral enamel composition and evaluate enamel after in-office bleaching