515 research outputs found
Anomalous population of He states in reactions with Li
Structure with the lowest energy observed in the He spectrum populated
in the proton knockout reaction with Li beam has a peak at
MeV. This peak is usually interpreted as a resonant ground state of
He. Our theoretical calculations indicate that this peak is likely to be
a pileup of , , and excitations with very similar shapes. %We
predict a very specific nature of the excitation in He. Moreover,
the ``soft'' excitation appears to be the lowest one in energy. Such an
anomalous continuum response is traced to the halo structure of Li
providing extreme low energy shift to all the expected continuum excitations.
Competitions of the initial state structure (ISS) and the final state
interaction (FSI) effects on the spectrum and three-body correlations in
He are discussed. Analogous effect of the extreme low-energy shift could
also be expected in other cases of emitters populated in reactions with
halo nuclei. Simplified example of the He spectrum in knockout
from Be, is given. We also discuss limits on the properties of He
stemming from the observed He spectrum.Comment: 10 pages, 13 figure
Updated analysis of NN elastic scattering to 3 GeV
A partial-wave analysis of NN elastic scattering data has been updated to
include a number of recent measurements. Experiments carried out at the Cooler
Synchrotron (COSY) by the EDDA Collaboration have had a significant impact
above 1 GeV. Results are discussed in terms of the partial-wave and
direct-reconstruction amplitudes.Comment: 16 pages, 14 figures, 2 tables; Fig 10 error corrected; Accepted for
publication in Physical Review
The Development of the Information System of Educational and Industrial Practices
Ефективність впровадження інформаційно-комунікаційних технологій у діяльність
організацій різних форм власності головним чином залежить від інформаційної культури співробітників
та керівництва, апаратного та програмного забезпечення, а також його обґрунтованого використання.
Одним з видів програмного забезпечення, що дозволяє задовольнити інформаційні потреби користувачів,
є інформаційні системи. Їх використання, разом із базами даних, які входять до складу інформаційних
систем, сприятиме формуванню інформаційного середовища для здійснення ефективного управління
комерційною організацією чи державною установою.
Навчальна діяльність та безперервна виробнича практика закладають основи професійної
майстерності майбутнього фахівця та дозволяють підвищити його конкурентоспроможність на ринку
праці. Метою статті є повідомлення про розробку та опис функціональних можливостей інформаційної
системи з навчально-виробничих практик, яка надає можливість підвищити інформаційну складову
процесу проходження різних видів навчально-виробничих практик. У процесі розробки інформаційної
системи використовувалася мова програмування PHP, фреймворк Yii Framework, бібліотека JQuery,
технологія Ajax, програмне забезпечення MySQL.
Розроблена інформаційна система здатна працювати у трьох режимах. Адміністратор може
змінювати інформацію про практики (додавати нову, видаляти, змінювати внесені дані). Викладач може
побачити перелік практик, студентів, які закріплені за ним та цією практикою, звіти студентів.
Студент може побачити перелік практик, які він проходив або проходить. Інформація, яка вноситься до
бази даних інформаційної системи, може бути використана для подальшого аналізу керівниками
практики, завідувачем кафедри та співробітниками деканату.The effectiveness of the implementation of information and communication technologies in the
activities of organizations of different ownership forms mainly depends on the information culture of staff and
management, hardware and software, as well as its reasonable use. One of the software to meet the information
needs of the users are of the system. Their use, together with databases that are part of information systems, to
promote the formation of information environment for effective control of a commercial organization or government
Agency.
Training activities and continuous production practice of laying the foundations of professional skills of future
specialist and enhance its competitiveness in the labor market. The purpose of this article is to report on the
development and description of the functionality of the information system for educational and industrial practices,
which makes it possible to increase the information content of the process through the various types of training and
production practices. In the process of development of an information system used PHP programming language,
framework, Yii Framework, JQuery, Ajax, MySQL software.
The developed information system is able to operate in three modes. The administrator can change
information about the practice (add new, delete, modify the data entered). The teacher can see the list of practices
that students who are assigned to him and this practice, the records of the students. The student can see the list of
practices which he passed, or passing. The information that is recorded in the database of the information system
can be used for further analysis by the departments the head of Department and Dean's office
Phytoplankton of the delta of the Mekong River during the dry season
Human activity has disturbed the functioning of river ecosystems all around the globe. The current global climatic fluctuations and local anthropogenic impact lead to rearrangement in the structure and functioning of aquatic communities. One of the most important components of aquatic ecosystems is phytoplankton as the main primary producer of the organic matter, the basis for trophic relations and indicator of changes in the environment. This article presents the first results of a study concerning the peculiarities of quantitative distribution of biomass and species composition of phytoplankton in the delta of the Mekong River at the beginning of the dry season (December of 2018). Diatoms dominated according to biomass practically in all the stations of selection of samples. The total biomass of phytoplankton on average accounted for 0.049 ± 0.007 mg/L at the abundance of 40 ± 7 103 ind./L. In practically all the studied plots, according to biomass, the dominating diatoms were first of all Aulacoseira granulata, A. islandica, Cyclotella meneghiniana, Cyclotella spp., and Oxyneis binalis. Among Chlorophyta, most often we found Chlorella sp. and Scenedesmus quadricauda, but their biomass was insignificant. We determined statistically significant correlation relationships between biomass of phytoplankton and hydrological parameters. Based on the Spearman’s rank correlation coefficient, we determined negative relations between the total biomass of phytoplankton with salinity and pH. Positive correlation was seen between the biomass of diatoms and turbidity, and also between the temperature and the biomass of chlorophytes and Dinophyta. The biomass of golden algae (Chrysophyceae) and Dinophyta positively correlated with the mineralization. Quantitative regression analysis confirmed the close relationship between the total biomass of phytoplankton, hydrophysical and hydrochemical parameters. Besides the importance of scientific data on biological diversity and ecology of plankton algae, the results we obtained are necessary for organizing biological monitoring in the delta of the Mekong River in the future
Hadronic Regge Trajectories: Problems and Approaches
We scrutinized hadronic Regge trajectories in a framework of two different
models --- string and potential. Our results are compared with broad spectrum
of existing theoretical quark models and all experimental data from PDG98. It
was recognized that Regge trajectories for mesons and baryons are not straight
and parallel lines in general in the current resonance region both
experimentally and theoretically, but very often have appreciable curvature,
which is flavor-dependent. For a set of baryon Regge trajectories this fact is
well described in the considered potential model. The standard string models
predict linear trajectories at high angular momenta J with some form of
nonlinearity at low J.Comment: 15 pages, 9 figures, LaTe
Модель механізму антикризового управління в адміністративно-територіальному утворенні
The model of the crisis-mechanism for administrative-territory unit is descript including aim-setting, projects of the risk-oriented strategy formation, the structure institutionalization of the crisis-assignment, crisis-management during strategy realization, diagnostic and identification of the crisis-threats. The approach to management for the system of the strategy realization based on the crisis-group creation, which exist on dual virtual-real status. The approach delivers such differs: accented proactive management; integration of the strategic and crisis functions without the special institution creation; the matrix structure integrates the functional and aimed activity; adaptively opportunities; stimulate of the project management implementation; opportunities to create the inter-organizational crisis-cell under crisis-threat..Описано модель механізму антикризового управління в адміністративно-територіальному утворенні, яка включає процеси цілепокладання, формування проектів ризик-орієнтованої стратегії, структурну інституціоналізацію антикризової відповідальності, управління ризиками на етапах реалізації стратегії, діагностику та ідентифікацію кризових небезпек. Підхід до побудови системи управління реалізацією стратегії передбачає створення кризових груп, які можуть існувати у подвійному віртуально-реальному режимі, і має такі принципові ознаки: виражений проактивний характер; інтеграція стратегічних та антикризових функцій без створення спеціальної антикризової структури; матрична структура вправління поєднує функціональну і цільову діяльність; гнучкість; сприяння упровадженню проектного підходу; можливість в умовах кризової ситуації розгорнути міжорганізаційну мережу кризового управління
Model of the mechanism of crisis management in the administrative-territorial entities
The model of the crisis-mechanism for administrative-territory unit is descript including aim-setting, projects of the risk-oriented strategy formation, the structure institutionalization of the crisis-assignment, crisis-management during strategy realization, diagnostic and identification of the crisis-threats. The approach to management for the system of the strategy realization based on the crisis-group creation, which exist on dual virtual-real status. The approach delivers such differs: accented proactive management; integration of the strategic and crisis functions without the special institution creation; the matrix structure integrates the functional and aimed activity; adaptively opportunities; stimulate of the project management implementation; opportunities to create the inter-organizational crisis-cell under crisis-threat
Minigap, Parity Effect and Persistent Currents in SNS Nanorings
We have evaluated a proximity-induced minigap in the density of states (DOS)
of SNS junctions and SNS nanorings at an arbitrary concentration of
non-magnetic impurities. We have demonstrated that an isotropic energy minigap
in the electron spectrum opens up already at arbitrarily weak disorder, while
angle resolved DOS at higher energies can remain strongly anisotropic. The
minigap value can be tuned by passing a supercurrent through an
SNS junction or by applying a magnetic flux to an SNS ring. A
non-monotonous dependence of on has been found at weak
disorder. We have also studied persistent currents in isolated SNS nanorings.
For odd number of electrons in the ring we have found a non-trivial
current-phase (current-flux) relation which -- at relatively high disorder --
may lead to a -junction state and spontaneous currents in the ground state
of the system.Comment: 7 pages, 8 figure
The relationship of time perspective and subjective perceptions of students as the empirical base for individualization of the educational path
The significance of the investigated problem is stipulated by the need in practicing individualization of vocational educational process in the continuing education and lack of scientific and methodological support of its accompaniment. The purpose of the article is to substantiate the subjective perceptions and temporal perspective as the empirical bases of individualization of vocational and educational process. The leading method of research of this problem is a questionnaire that allows to identify the level of demonstration time perspectives (adapted technique ZTPI) and differentiate subjective judgments about the system of vocational education, professional self-determination process (questionnaire). The results of empirical study of time perspective, the subjective perception of vocational education and retrospective-prospective (forward-looking) aspects of professional self-determination, as well as their relationship with students are presented and discussed in the article. The results can be taken into account in the scientific and methodological support of individualization of vocational and educational process and in applied methods of formation of individual educational paths in vocational education. © 2016 Zavodchikov et al
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