111 research outputs found
Book review: Milena MiliÄeviÄ: Community participation of children with cerebral palsy in Serbia: Conceptual considerations and evaluation
Book review: Milena MiliÄeviÄ: Community participation of children with cerebral palsy in Serbia: Conceptual considerations and evaluation
KRIMINALITET MALOLETNIKA-STANJE U SVETU I U SRBIJI
Socially unacceptable behavior of young people has changed, over time, both in the forms of manifestations and in terms of causes and conditions which may lead it. Juvenile crime is negative, dynamic social phenomenon which represents the activity of one or more persons in a given period of time and space, conditioned by certain social relations and recognized by the legislation, whose disregard for and violation of the products and adequate criminal penalties. The study of the causes of juvenile delinquency includes two major, interrelated areas, which can be divided into objective (socio-economic) and subjective factors. Objective factors related to the study of the social conditions of criminal behavior of juveniles and the formation of personality under the inļ¬uence of these conditions. Subjective factors include psychological characteristics of the personality of the minor, specific for intelligence, temperament, Socially unacceptable behavior of young people has changed, over time, both in the forms of manifestations and in terms of causes and conditions which may lead it. Juvenile crime is negative, dynamic social phenomenon which represents the activity of one or more persons in a given period of time and space, conditioned by certain social relations and recognized by the legislation, whose disregard for and violation of the products and adequate criminal penalties. The study of the causes of juvenile delinquency includes two major, interrelated areas, which can be divided into objective (socio-economic) and subjective factors. Objective factors related to the study of the social conditions of criminal behavior of juveniles and the formation of personality under the inļ¬uence of these conditions. Subjective factors include psychological characteristics of the personality of the minor, specific for intelligence, temperament, character, emotions, motives, attitudes, habits, preferences, primarily due to the specifc characteristics of puberty and adolescence as an important phase in the development of personality. The World Health Organizationestimates that annually around the world, young people aged 10 to 29 commit about 200,000 homicides, representing 43% of the total number of murders that are committed in the world each year. Only this indicates a serious social problem in the control and prevention of juvenile crime at the global level.DruÅ”tveno neprihvatljivo ponaÅ”anje mladih, kroz vreme menjalo se kako u oblicima ispoljavanja tako i u pogledu uzroka i uslova koji ga izazivaju. MaloletniÄki kriminalitet je negativna, dinamiÄna druÅ”tvena pojava koja predstavlja aktivnost jednog ili viÅ”e lica u odreÄenom period i prostoru, uslovljenu odreÄenim druÅ”tvenim odnosima i inkriminisanu zakonskim propisima, Äije nepoÅ”tovanje i krÅ”enje povlaÄi i adekvatne kriviÄne sankcije. IzuÄavanje uzroka maloletniÄke delinkvencije obuhvata dva glavna, meÄusobno povezana podruÄja, koji se mogu podeliti na objektivne (socijalno-ekonomske) i subjektivne faktore. Objektivni faktori se odnose na izuÄavanje socijalnih uslova kriminalnog ponaÅ”anja maloletnika i formiranje liÄnosti pod uticajem tih uslova. Subjektivni faktori obuhvataju psiholoÅ”ke karakteristike liÄnosti maloletnika, specifÄne po inteligenciji, temperamentu, karakteru, emocijama, motivima, stavovima, navikama, sklonostima, pre svega, zbog posebnih obeležja puberteta i adolescencije kao znaÄajnih faza u razvoju liÄnosti. Svetska zdravstvena organizacija procenjuje da godiÅ”nje u celom svetu, mladi uzrasta od 10 do 29 godina poÄine oko 200.000 ubistava, Å”to predstavlja 43% od ukupnog broja ubistava koja se poÄine na svetu svake godine. Samo ovaj podatak ukazuje na ozbiljan problem druÅ”tva u kontroli i prevenciji maloletniÄkog kriminaliteta na globalnom nivou
Modern Analysis Techniques for Spectroscopic Binaries
Techniques to extract information from spectra of unresolved multi-component
systems are revised, with emphasis on recent developments and practical
aspects. We review the cross-correlation techniques developed to deal with such
spectra, discuss the determination of the broadening function and compare
techniques to reconstruct component spectra. The recent results obtained by
separating or disentangling the component spectra is summarized. An evaluation
is made of possible indeterminacies and random and systematic errors in the
component spectra.Comment: 12 pages, 3 figures, Invited talk to appear in the proceedings of IAU
Symp. No. 240 'Binary Stars as Critical Tools and Tests in Contemporary
Astrophysics' (Prague, 22-25 August 2006), Eds. W. Hartkopf, E. Guinan & P.
Harmanec (Cambridge Univ. Press
Regularizacija rjeÅ”enja za raspodjele nabijene praÅ”ine u EinsteināMaxwellovoj teoriji
Regularization of singular solutions for the static spherically symmetric extremelly charged dust in the Majumdar-Papapetrou system has been investigated. Singularities are of such a type that solutions become physically unacceptable since physically relevant quantities (metric invariants) are singular as well. With a simple redefinition of the charge/energy distributions, these solutions can be regularized. A spectrum of solutions with a number of zero-nodes in the metric tensor is found, and it is shown that their regularization can be accomplished either by using a d-shell, or a thick shell distribution of matter. The bifurcating behaviour of regular solutions is not present any more, but quantized-like behaviour in the total mass allocated to the solutions is observed.Istražujemo regularizaciju rjeÅ”enja za statiÄku sferno simetriÄnu potpuno nabijenu praÅ”inu u Majumdar-Papapetrouovom sistemu. RjeÅ”enja u njihovim koordinatama pokazuju singularnosti. Te su singularnosti takve naravi da su rjeÅ”enja fizikalno neprihvatljiva jer su važne fiziÄke veliÄine (metriÄke invarijante) takoÄer singularne. Ta se rjeÅ”enja mogu regularizirati jednostavnom promjenom definicije raspodjela naboja/energije. NaÅ”li smo spektar rjeÅ”enja s nekoliko nul-Ävorova u metriÄkom tenzoru, i pokazali da se može postiÄi njihova regularizacija bilo s Ī“ sferom, ili s debelom sfernom raspodjelom tvari. Nestaje grananje regularnih rjeÅ”enja, ali se za ukupnu masu pridruženu rjeÅ”enjima opaža ponaÅ”anje sliÄno kvantizaciji
Separation techniques for disentangling of composite spectra
Disentangling of composite spectra is a promissing technique for the analysis of double-lined spectroscopic binary systems. The technique makes use of a separation routine to extract model-component spectra out of a time series of observed composite spectra. Focusing on the differences between two possible approaches in the implementation of the separation routine, we compare the resulting limitations. We perform test runs on artificial data and conclude that separation in the wavelength domain is more versatile in several aspects, while the computational efficiency of separation in the Fourier domain allows working with larger data sets which is beneficial in a fully-blown disentangling process
Tehnike razdvajanja za raspetljavanje složenih spektara
Disentangling of composite spectra is a promissing technique for the analysis of double-lined spectroscopic binary systems. The technique makes use of a separation routine to extract model-component spectra out of a time series of observed composite spectra. Focusing on the differences between two possible approaches in the implementation of the separation routine, we compare the resulting limitations. We perform test runs on artificial data and conclude that separation in the wavelength domain is more versatile in several aspects, while the computational efficiency of separation in the Fourier domain allows working with larger data sets which is beneficial in a fully-blown disentangling process.Raspetljavanje složenih spektara je obeÄavajuÄa metoda za prouÄavanje dvojnih zvjezdanih sustava. Ta metoda primjenjuje rutinu za razdvajanje kojom se izluÄuje spektre zvijezda komponenata modela iz vremenskog niza opaženih složenih spektara. UsredotoÄujuÄi se na razlike u pristupu pri izvedbi rutine za rastavljanje, usporeÄujemo ograniÄenja koja iz njih proizlaze. Proveli smo ispitivanje s umjetnim podacima i zakljuÄili da je rastavljanje u podruÄju valnih duljina svestranije u viÅ”e pogleda, dok rastavljanje primjenom Fourierovog transformata dozvoljava rad s veÄim skupovima podataka, Å”to je povoljno u potpunom procesu raspetljavanja složenih spektara
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