650 research outputs found
Soliton absorption spectroscopy
We analyze optical soliton propagation in the presence of weak absorption
lines with much narrower linewidths as compared to the soliton spectrum width
using the novel perturbation analysis technique based on an integral
representation in the spectral domain. The stable soliton acquires spectral
modulation that follows the associated index of refraction of the absorber. The
model can be applied to ordinary soliton propagation and to an absorber inside
a passively modelocked laser. In the latter case, a comparison with water vapor
absorption in a femtosecond Cr:ZnSe laser yields a very good agreement with
experiment. Compared to the conventional absorption measurement in a cell of
the same length, the signal is increased by an order of magnitude. The obtained
analytical expressions allow further improving of the sensitivity and
spectroscopic accuracy making the soliton absorption spectroscopy a promising
novel measurement technique.Comment: 9 pages, 7 figures
Additional visits as a factor determining the psychoemotional status of a dentist and a patient requiring endodontic treatment
The possibility of achieving effective communication that optimizes interpersonal relations between the doctor and the patient along with the formation of manual skills is one of the most important aspects of dental education. The paper presents the results of the survey of 58 second-year resident physicians and 64 dentists with more than 5 years of work experienc
Training of the top skills in the conditions of continuous education
The article deals with the problem of training highly qualified personnel in the context of the implementation of continuing education. The new status of Russian post-graduate studies in the system of higher education is analyzed. The problem of developing a universal educational program for postgraduate students that is adequate to the new conditions of its activity and meets the needs of the main customers of this process is being actualizedВ статье рассматривается проблема подготовки кадров высшей квалификации в контексте реализации непрерывного образования. Анализируется новый статус российской аспирантуры в системе высшего образования. Актуализируется проблема разработки универсальной образовательной программы подготовки аспирантов, адекватной новым условиям ее деятельности и отвечающей запросам основных заказ-чиков данного процесс
RESULTS OF TESTING OAT BREEDING MATERIAL IN THE TAIGA ZONE OF WESTERN SIBERIA
The studies found out that the productivity and quality of oat crop accessions were influenced by the climatic conditions during the vegetation period and plant mineral nutrition level. Under favorable weather and soil conditions the accessions demonstrated a reliable yield increase (0.35-0.37-0.40 t/ha), increased weight of 1000 grains and lesser grain husk. With irregular heat and humidity on poor naturally fertile soils, the growing season of mid-ripening varieties was longer, while for mid-early ones becamer shorter; grain yield was lower than in dry environments
Analysis of Involvement of Cytokine Genetic Polymorphisms in Development of Genital Endometriosis
The article outlines the role of cytokines in development of genital endometriosis. There were detected associations between genetic polymorphisms and their combinations and development of genital endometriosis among women in the Central region of Russi
Anosognosia in patients with acute hemispheric ischemic stroke
Objective: to investigate the frequency of anosognosia (a deficit of self-awareness), its anatomic correlates associated with other neuropsychological and neurological disorders in acute hemispheric ischemic stroke (IS).Patients and methods 150 patients (83 men and 67 women; mean age, 63.0±9.3 years) with acute hemispheric IS were examined. All the patients underwent neurological, neuroimaging, and neuropsychological (by the procedure described by A.R. Luria) examinations. neuropsychological investigations. Anosognosia was diagnosed using the Dysexecutive Questionnaire (DEX) and the authors' procedure involving a scale to measure impaired self-rating of motor abilities and a scale to measure impaired self-rating of cognitive abilities in everyday life.Results and discussion. In the acute period of hemispheric IS, reduced self-awareness of motor and cognitive abilities was noted in 14% of the patients and unawareness of only cognitive abilities was recorded in 15%. Patients with anosognosia and cognitive dysfunction (ACD) and those with anosognosia and motor dysfunction (AMD) had right-sided hemispheric IS more frequently (76%) while this was not found in patients with isolated ACD. The development of anosognosia for paralysis and paresis was favored by the large sizes of an ischemic focus that involved a few lobes in the posterior regions of the brain although no lesions were found in the anosognosia-specific anatomical regions. ACD and AMD proved to be associated with unilateral spatial and tactile neglect and obvious regulatory dysfunction
Timetracker capabilities in student project activities
The purpose of the work is to consider the possibilities of time trackers in the design activities of students. The article presents an analysis of modern time trackers that contribute to the self-organization of students to achieve educational goals. In the context of an increase in the share of independent training in universities and the expansion of distance learning, there is a need for students to master time management, which allows them to conduct activities most productively. Time management involves the use of electronic tools that promote the development of the discipline, self-organization and student planning for the rapid achievement of goals. The article discusses both trackers for large-scale professional activities, control and accounting of working hours, as well as simpler versions of trackers suitable for personal use by students. Time management ensures timely implementation of the project, allows you to evaluate the contribution of each student to the work, and adjust the activities of students. The use of time trackers in performing various tasks, including the implementation of projects, contributes to high-quality visualization of the number of hours spent on the task and, as a result, the development of discipline and self-organization of students
Candidate genes and clinical-laboratory parameters in pregnant women with preeclampsia
They studied the associations of genetic polymorphisms with clinico-laboratory indicators among pregnant women with preeclampsia depending on hereditary complicatio
Polymorphisms of genes and the risk of preeclampsia
They studied the relations of genetic polymorphisms with the risk of preeclampsia occurrence depending on hereditary complicatio
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