1,199 research outputs found

    Niepełnoletni rodzice i ich rodziny jako podmiot wsparcia. Badania własne

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    Underage parenting is an experience that can be defined as difficult, even critical. It is the same both for teenagers and their families. Adopting the role of a father and mother in adolescence, and so prematurely, generates a number of difficulties that occur in almost every sphere of functioning of these young people. It is therefore necessary to take steps supporting not only underage parents, but also their families. In this article, the issue of supporting teen parents and their families have been described. The sources of information are the empirical studies of underage mothers carried out in 2008 and underage fathers in 2012-2013. They enabled not only to recognize the difficulties that usually involve teen parents, but also the scope and type of support they receive

    Sprawozdanie z X Konferencji Organizacji Studenckich Wydziału Studiów Edukacyjnych Uniwersytetu im. Adama Mickiewicza w Poznaniu „Między radością a cierpieniem. Wyzwania współczesnej pedagogiki” Poznań, 17 maja 2018 roku

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    Sprawozdanie z X Konferencji Organizacji Studenckich Wydziału Studiów Edukacyjnych Uniwersytetu im. Adama Mickiewicza w Poznaniu „Między radością a cierpieniem. Wyzwania współczesnej pedagogiki” Poznań, 17 maja 2018 rok

    Absolute properties of the main-sequence eclipsing binary FM Leo

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    First spectroscopic and new photometric observations of the eclipsing binary FM Leo are presented. The main aims were to determine orbital and stellar parameters of two components and their evolutionary stage. First spectroscopic observations of the system were obtained with DDO and PST spectrographs. The results of the orbital solution from radial velocity curves are combined with those derived from the light-curve analysis (ASAS-3 photometry and supplementary observations of eclipses with 1 m and 0.35 m telescopes) to derive orbital and stellar parameters. JKTEBOP, Wilson-Devinney binary modelling codes and a two-dimensional cross-correlation (TODCOR) method were applied for the analysis. We find the masses to be M_1 = 1.318 ±\pm 0.007 and M_2 = 1.287 ±\pm 0.007 M_sun, the radii to be R_1 = 1.648 ±\pm 0.043 and R_2 = 1.511 ±\pm 0.049 R_sun for primary and secondary stars, respectively. The evolutionary stage of the system is briefly discussed by comparing physical parameters with current stellar evolution models. We find the components are located at the main sequence, with an age of about 3 Gyr.Comment: 5 pages, 4 figures, to appear in MNRA

    Underage Parents and Their Families as a Subject of Support. Independent Research

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    Underage parenting is an experience that can be defined as difficult, even critical. It is the same both for teenagers and their families. Adopting the role of a father and mother in adolescence, and so prematurely, generates a number of difficulties that occur in almost every sphere of functioning of these young people. It is therefore necessary to take steps supporting not only underage parents, but also their families. In this article, the issue of supporting teen parents and their families have been described. The sources of information are the empirical studies of underage mothers carried out in 2008 and underage fathers in 2012-2013. They enabled not only to recognize the difficulties that usually involve teen parents, but also the scope and type of support they receive.118920211Kultura-Społeczeństwo-Edukacj

    Orbital and physical parameters of eclipsing binaries from the ASAS catalogue -- III. Two new low-mass systems with rapidly evolving spots

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    We present the results of our spectroscopic and photometric analysis of two newly discovered low-mass detached eclipsing binaries found in the All-Sky Automated Survey (ASAS) catalogue: ASAS J093814-0104.4 and ASAS J212954-5620.1. Using the GIRAFFE instrument on the 1.9-m Radcliffe telescope at SAAO and the UCLES spectrograph on the 3.9-m Anglo-Australian Telescope, we obtained high-resolution spectra of both objects and derived their radial velocities (RVs) at various orbital phases. The RVs of both objects were measured with the TODCOR technique using synthetic template spectra as references. We also obtained V and I band photometry using the 1.0-m Elizabeth telescope at SAAO and the 0.4-m PROMPT instruments located at the CTIO. The orbital and physical parameters of the systems were derived with PHOEBE and JKTEBOP codes. We compared our results with several sets of widely-used isochrones. Our multi-epoch photometric observations demonstrate that both objects show significant out-of-eclipse modulations, which vary in time. We believe that this effect is caused by stellar spots, which evolve on time scales of tens of days. For this reason, we constructed our models on the basis of photometric observations spanning short time scales (less than a month). Our modeling indicates that (1) ASAS-09 is a main sequence active system with nearly-twin components with masses of M1 = 0.771(33) Msun, M2 = 0.768(21) Msun and radii of R1 = 0.772(12) Rsun and R2 = 0.769(13) Rsun. (2) ASAS-21 is a main sequence active binary with component masses of M1 = 0.833(17) Msun, M2 = 0.703(13) Msun and radii of R1 = 0.845(12) Rsun and R2 = 0.718(17) Rsun. Both systems confirm the characteristic of active low-mass stars, for which the observed radii are larger and the temperatures lower than predicted by evolutionary models. Other parameters agree within errors with the models of main sequence stars.Comment: 15 pages, 7 figures, 7 tables, to appear in A&
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