Use Of Active Techniques Research Articles

USING THE GEOGEBRA ENVIRONMENT IN THE MATHEMATICAL TRAININGOF ECONOMIC STUDENTS

The use of information technology in the learning process has of learning in institutions of higher education already become commonplace, but new tools that constantly help teachers and students. In order for education to really meet the demand of modern realities, it is necessary to continuously modernize the forms and methods of education. One such most relevant assistant in teaching mathematics is the Dynamic Mathematics System GeoGebra. The article deals with the issue of modernization of methodological systems for teaching mathematical disciplines studied by students of economic specialties. in IT areas. The possibilities of the GeoGebra tool are revealed, which are important for improving the quality of mathematical training of future economists in the context of the implementation of the didactic principle of visibility and the inclusion of students in research and project activities. Particular attention is paid to the practical aspects of using GeoGebra in solving plot, applied problems associated with the use of active techniques and methods of teaching mathematical disciplines, the growth of students’ creative and intellectual activity when working with topics that require visualization of mathematical concepts and objects. The conditions of methodologically expedient inclusion of Geogebra into the practice of teaching mathematical disciplines for the preparation of economists and the modernization of already existing methodological systems for teaching mathematical disciplines are highlighted. It has been proven that the use of the interactive geometric environment GeoGebra allows visualization of abstract mathematical concepts, which contributes to the fastest possible perception of the material, a deeper understanding of it and increases interest in the discipline being studied. In addition, the use of dynamic mathematics systems both in the classroom and in non-classroom work has a positive effect on the success of students. Completing mathematical tasks using the GeoGebra environment arouses students' cognitive interest in exact sciences and promotes the development of visual and creative thinking. GeoGebra should be considered a special visual environment not only for solving specific problems related to mathematics and mathematical modeling, but also an environment for the implementation of interdisciplinary projects of an integration nature.

Evaluating the effect of different irrigation activation techniques on the dentin tubules penetration of two different root canal sealers by laser scanning confocal microscopy.

The aim of this study is to evaluate the effect of different irrigation activation techniques on the dentin tubules penetration of two different sealers by confocal laser scanning microscope (CLSM). A hundred premolar teeth were used in this study. The root canals were shaped and irrigated with 5% NaOCl and 17% EDTA using the following final irrigation activation techniques in each group; Group1: Conventional Syringe Irrigation (CSI), Group2: Passive Ultrasonic Irrigation (PUI), Group3: Apical Negative Pressure (EndoVac), Group4: Er:YAG laser and Group5: Er,Cr:YSGG laser. Then the teeth were separated two subgroups according to sealers (AH-Plus and Totalfill-BC). Horizontal sections were obtained at 2, 5, 8 mm distance of apex. Images were obtained with CLSM and the penetration areas of sealers were calculated with four different dentin tubule penetration assessment techniques. The data were statistically analyzed with Kruskal Wallis and Mann Whitney U tests. No significant difference was observed between the sealers (p > .05). EndoVac, Er:YAG and Er,Cr:YSGG laser activation groups were observed to have a significantly higher mean penetration depth, penetration percentage and penetration area than the Control group. There was a significant difference between all regions in all penetration parameters (p < .05). While the use of resin or bioceramic-based root canal sealers did not affect dentin tubule penetration, the use of activation techniques positively affect the dentin tubule penetration. The average tubule penetration and penetration area assessment techniques are suitable methods for the investigation of dentinal tubule penetration. It can be stated that the use of resin or bioceramic based root canal sealers does not affect dentin tubule penetration and the use of irrigation activation techniques during removal of the smear layer positively affects dentinal tubule penetration. In addition, it has been determined that the average tubule penetration and penetration area assessment techniques are suitable methods for the investigation of dentinal tubule penetration.

Neutron-induced cross section measurements

Neutron-induced cross sections represent the main nuclear input to models of stellar and Big-Bang nucleosynthesis. While (n,γ) reactions are relevant for the formation of elements heavier than iron, (n,p) and (n,α) reactions can play an important role in specific cases. The time-of-flight method is routinely used at n_TOF to experimentally determine the cross section data. In addition, recent upgrades of the facility will allow the use of activation techniques as well, possibly opening the way to a systematic study of neutron interaction with radioactive isotopes. In the last 20 years n_TOF has provided a large amount of experimental data for Nuclear Astrophysics. Our plan is to carry on challenging measurements and produce nuclear data in the next decades as well.

Investigation of compressive strength and microstructures of activated cement free binder from fly ash - calcium carbide residue mixture

This paper investigates compressive strength and microstructural properties of activated cement free binder from fly ash (FA) - calcium carbide residue (CC). Different activation methods to enhance the strength of the FA-CC mixture were used including the following: 1) curing at elevated temperature of 60°C, 2) adding 1% NaOH by weight of binder and 3) combining both 1% NaOH by weight of binder and curing at temperature of 60°C. The compressive strengths of mortars with different activation techniques were determined at 3, 7, 28, and 90 days. Microstructural properties of activated cement free binder from the FA-CC mixture, that is, XRD patterns, SEM microscopy, EDS analysis, and degree of reaction were examined. Results from this study revealed that the activated cement free binder from FA-CC had components of Ca, Al, and Si and indicated CSH and CASH likewise the end products of pozzolanic reaction. Use of activation techniques had significantly affected on the microstructure in cementing system. The activated cement free binder from FA-CC mixture with addition of 1% NaOH and curing at 60°C increased binder strength and promoted the formation of CSH, CASH, and some amount of NASH phase or hybrid C(N)ASH.

Improved neutron activation dosimetry for fusion

Neutron activation technique has been widely used for the monitoring of neutron fluence at the Joint European Torus (JET) whereas it is foreseen to be employed at future fusion plants, such as ITER and DEMO. Neutron activation provides a robust tool for the measurement of neutron fluence in the complex environment encountered in a tokamak. However, activation experiments previously performed at JET showed that the activation foils used need to be calibrated in a real fusion environment in order to provide accurate neutron fluence data. Triggered by this challenge, an improved neutron activation method for the evaluation of neutron fluence at fusion devices has been developed. Activation assemblies similar to those used at JET were irradiated under 14 MeV neutrons at the Frascati Neutron Generator (FNG) reference neutron field. The data obtained from the calibration experiment were applied for the analysis of activation foil measurements performed during the implemented JET Deuterium-Deuterium (D-D) campaign. The activation results were compared against thermoluminescence measurements and a satisfactory agreement was observed. The proposed method provides confidence on the use of activation technique for the precise estimation of neutron fluence at fusion devices and enables its successful implementation in the forthcoming JET Deuterium-Tritium (D–T) campaign.

Электронное Обучение в Высшем Гуманитарном Образовании (E-Learning in High Liberal Education)

Russian Abstract: Статья посвящается анализу возможностей информационно-коммуникационных технологий, используемых для повышения качества образования и с целью расширения репертуара средств обучения. Описаны некоторые особенности дистанционного обучения, раскрыта эффективность использования компьютера в учебном процессе вуза. Особое внимание уделяется использованию метода проектов при интерактивном обучении русскому языку и как родному, и как иностранному. Исследование основано на практическом материале и возможностях использования современных информационно-коммуникационных технологий как средства интерактивного обучения, которое открывает возможности учебных виртуальных экскурсий. Результатом интерактивного обучения студентов русскому языку с использованием активных приемов становятся сформированные навыки аудирования, говорения и письма. English Abstract: The paper is devoted to analysis of possibilities of information and communication technologies used to improve the quality of education and to expand the repertoire of learning tools. Some features of distance learning are described, is revealed the efficiency of computer use in the educational process of the University. Special attention is paid to the use of project method for an interactive teaching of Russian language as a native and as a foreign. The study is based on practical material and possibilities of using modern information and communication technologies as a means of interactive learning, which opens up possibilities of educational virtual tours. The result of interactive students training in Russian language with the use of active techniques become formed the skills of listening, speaking and writing.

A Cognitive-Behavioral Perspective on Robert Cohen's Case of "Daniel"

Robert Cohen

Music and health: what interventions for what results?

Music and health: what interventions for what results?

Do counselor techniques predict quitting during smoking cessation treatment? A component analysis of telephone-delivered Acceptance and Commitment Therapy

No studies to date have examined the effect of counselor techniques on smoking cessation over the course of treatment. To address this gap, we examined the degree to which the use of specific Acceptance and Commitment Therapy (ACT) counseling techniques in a given session predicted smoking cessation reported at the next session. The data came from the ACT arm of a randomized controlled trial of a telephone-delivered smoking cessation intervention. Trained raters coded 139 counseling sessions across 44 participants. The openness, awareness and activation components of the ACT model were rated for each telephone counseling session. Multilevel logistic regression models were used to estimate the predictive relationship between each component during any given telephone session and smoking cessation at the following telephone session. For every 1-unit increase in counselors' use of openness and awareness techniques there were 42% and 52% decreases in the odds of smoking at the next counseling session, respectively. However, there was no significant predictive relationship between counselors' use of activation techniques and smoking cessation. Overall, results highlight the theoretical and clinical value of examining therapists' techniques as predictors of outcome during the course of treatment.

Activation procedures in the electroencephalograms of healthy and epileptic cats under propofol anaesthesia

The current study evaluated the diagnostic value of electroencephalographic recordings (EEG) in cats with epilepsy under special consideration of photic stimulation and hyperventilation. EEGs in six healthy cats were recorded...

Electroencephalographic recordings in dogs suffering from idiopathic and symptomatic epilepsy: Diagnostic value of interictal short time EEG protocols supplemented by two activation techniques

The diagnostic value of interictal short time electroencephalographic (EEG) recordings in epileptic dogs under general anaesthesia with propofol and the muscle relaxant rocuronium bromide was investigated. Two activation techniques, namely photic stimulation and hyperventilation, were evaluated for their potential to enhance the diagnostic validity of these recordings. Sixty-one dogs suffering from idiopathic epilepsy and 28 dogs suffering from symptomatic epilepsy were included. Electroencephalograms were recorded using five subdermal EEG electrodes (F3, F4, Cz, O1 and O2). All 89 EEGs were analysed visually and 61 were also evaluated quantitatively with fast Fourier transformation. Interictal paroxysmal epileptiform activity was found in 25% of idiopathic and in 29% of symptomatic epileptic dogs. Quantitative analysis of the EEGs (qEEGs) detected significant differences of frequency analysis in single reading points without any continuous changes of frequency bands. A comparison between healthy and affected brain hemispheres in seven dogs with focal lesions of one hemisphere did not show any significant differences in qEEG analysis. qEEG was not more sensitive than visual evaluation. Despite the use of activation techniques, the results showed that short time EEG recordings in epileptic dogs can detect interictal epileptic activity in less than one third of all seizuring dogs and is not a useful screening method.

Airway Clearance in COPD: Need for a Breath of Fresh Air? A Systematic Review

Background: Airway clearance is a key component of respiratory physiotherapy management for patients with excess secretions, including patients with chronic obstructive pulmonary disease (COPD). The aim of this review is to give an overview of the available evidence for the use of different airway clearance techniques (ACT) and their effects in patients with COPD. Methods: A systematic literature search was performed on CEBAM, PUBMED, Cochrane CT, Science Direct and Biomed central data bases. After screening, a total of 26 articles were included. Results: Studies that provide solid evidence of the effectiveness of different airway clearance techniques in patients with COPD are rather scarce. The available evidence indicates that active breathing techniques, such as active cycle of breathing techniques, autogenic drainage and forced expiration, can be effective in the treatment of COPD. The evidence for passive techniques such as postural drainage and percussion is low. Supporting techniques such as intrapulmonary percussive ventilation, positive expiratory pressure and non-invasive ventilation have little evidence because of the small number of studies. Little evidence is found for the combined use of active techniques and supporting techniques such as (oscillating) positive expiratory pressure, postural drainage and vibration in COPD patients. There is clearly a need for well-powered controlled clinical trials on the long-term effects of (combined) airway clearance techniques in COPD.

Neutron yield measurements by use of activation techniques on TEXTOR-94

The time integrated neutron yield on TEXTOR is measured with an activation system which pneumatically sends the samples near to and from the plasma edge. After irradiation the samples are counted by an absolutely calibrated high purity germanium (HPGe) detector. The uncertainty in the calibration of the HPGe detector is less than 2%. By using threshold reactions for indium and silicon samples it is possible to distinguish between the 2.5 and 14 MeV neutron emission. MCNP code simulations have been performed in order to determine the neutron fluence and energy distribution at the irradiation position. This allows calculation of an activation coefficient which relates the activation of the sample to the total yield from the TEXTOR plasma. For the 2.5 MeV neutron emission the corresponding error is less than 15%. Details on the measuring procedure as well as on the calibration method of the HPGe detector are provided. Results of calibration monitoring of the neutron source strength measurements and the triton burnup measurements are presented.

Group therapy for adults with a learning disability: use of active techniques

We describe our experience of running a group using active therapy techniques for adults with a teaming disability, and briefly explore cognitive developmental theory in an attempt to understand some of our observations.

Transcranial Doppler in neurosurgery.

This chapter describes the use of the transcranial Doppler apparatus in neurosurgery. The principles of Doppler insonation, the techniques of recording and the use of activation techniques is described. The relationship between blood flow and blood velocity is discussed, and the interaction of various pharmacological agents. The establishment of normal values for the laboratory and various vessels insonated is emphasised. The use of indices particularly the pulsatility index is described together with its variations. Cerebral vascular reactivity measurements and the interaction of Doppler recordings with raised intracranial pressure, useful in assessment of cerebral perfusion pressure as in head injury and in terminal cases, is documented. The use of transcranial Doppler in management of head injury and subarachnoid haemorrhage is described. The latter is probably the most useful routine place for Doppler measurement in neurosurgical practice and the documentation of the onset and progress of vasospasm is the final portion of the chapter.

Use of Activation Technique for the Measurement of Neutron Yields from Deuterium Plasmas at the Joint European Torus

This paper reports on the time dependence of the 2.5-MeV neutron emission from the Joint European Torus (JET) which is reliably measured using fission chambers. The absolute calibration of these chambers is required to an accuracy of 10% or better for a range of intensities that may cover six or more decades. At JET, this calibration is now achieved by use of activation techniques, the most convenient of which involves fissionable materials (thorium and uranium) and delayed neutron counting. Because delayed neutron counting is unfamiliar in the fusion community, particular care is taken to obtain confirmation of the results based on this method by comparison with measurements made using the conventional activation procedure (involving indium, nickel, and zinc as target materials). As the activation measurements can be influenced appreciably by the weak emission of 14-MeV neutrons, this contribution is measured separately using high threshold energy activation reactions (in copper and silicon). Neutron transport calculations are employed to relate the measured local fluences of both 2.5- and 14-MeV neutrons to the total yields from the plasma. Absolute calibration accuracies of 6 and 8% are claimed for 2.5- and 14-MeV neutron yields, respectively; the accuracy of the 14-MeV to 2.5-MeV yield ratiosmore » is 6%.« less

Child-Rearing Experience and Attitudes toward the Use of Influence Techniques

Samples of female college students and women with children completed questionnaires indicating the likelihood of their performing 16 types of influence techniques in a common child-rearing situation. Significant differences were found in the proportions of the college women and mothers stating that they would use several of the techniques. Two general patterns emerged: first, the greater use of active techniques involving the direct manipulation of consequences and, second, a decrease in the use of love-oriented techniques which were negatively cast. The results were interpreted as suggesting that the experience of child-rearing may produce significant changes in attitudes toward parental influence techniques.