An Investigative Study Of Twelve Dropouts In Villa Grove High School

Sve više ljudi sklapa brak iz ljubavi, usprkos vaţnosti ljubavi u braku, partneri jako malo znaju o toj ljubavi. O tome koje su vrste ljubavi, odrednice ljubavi, kako se ljubav mijenja tijekom vremena, utjecaj rođenja djeteta na ljubav i mnoge druge čimbenike koji oblikuju ljubav u braku. Osim ljubavi u braku je iznimno bitna komunikacija, kompromis, razumijevanje i poštovanje. To su samo neke od odrednica koje ĉine kvalitetan brak. Kada se brak ne temelji na ovim odrednica dolazi do sukoba, svađa, pa ĉak i nasilja u obitelji. Kada u takvoj obitelji boravi dijete i ako ne postoji niti jedno bolje rješenje, onda je najbolje rješenje rastava braka. Rastava braka ne donosi sa sobom mir u obitelj, već razdvojenost, tugu, usamljenost i mnoge druge negativne emocije. Ipak daleko najteže je djetetu na kojeg rastava braka ostavlja ponekad i trajne posljedice. Utjecaj razvoda nije samo na roditelje, već i na poremećaje u ponašanju i razvoju djece. Dijete negodovanjem iskazuje svoje reakcije na svaku promjenu u svom životu, pa tako i na razvod roditelja. Uz potpunu roditeljsku podršku i ljubav, značajnu ulogu u procesu prihvaćanja razvoda ima i odgojno obrazovni sustav. Dijete tijekom razvoda gubi sigurnost u vlastitom domu, uloga odgajatelja je da dijete zadrži sigurnost u svom vrtiću, te pomoći djetetu u prilagođavanju novonastale situacije.There has been an increasing number of people who get married for love. Notwithstanding the importance of love in marriage, partners know little about it. They are not familiar with determinants of love and do not understand that love can change and can be affected, for instance, by a childbirth. There are other factors that affect love in marriage, about which the spouses are largely ignorant. Communication, comproise, mutual understanding and respect are of utmost impedance in a marriage as well. These are only some of the factors that make a quality and functional marriage. When a marriage is disfunctional and devoid of all important determinants needed for a successful marriage it can result in conflicts, quarrels and even domestic violence. When this happens, a separation is a better option. Nevertheless, a divorce does not bring peace to a family since it results in separation, grief, loveliness and a lot of negative emotions. Adivorce does not only affect the parents, but it can also have long-term consequences as for as children are concerned. If unables to accept ther parents divorce, children can develop behavioral disorders and have stunted development. Reluctant to accept any negative change in life, they react in a negative way to a divorce. However, if provided with parental unreserved support and love, children may accept a separation in an easier way. Educational system and institutions play an important role in this as well. Children feel that they lack safety in their own home during a divorce period. Therefore, it is a kinergarten teacher’s role and duty to ensure that thay feel safe and secure in their kindergarten by helping them to adapt to new life circumstances

A comparison of dry and wet season aerosol number fluxes over the Amazon rain forest

Vertical number fluxes of aerosol particles and vertical fluxes of CO(2) were measured with the eddy covariance method at the top of a 53 m high tower in the Amazon rain forest as part of the LBA (The Large Scale Biosphere Atmosphere Experiment in Amazonia) experiment. The observed aerosol number fluxes included particles with sizes down to 10 nm in diameter. The measurements were carried out during the wet and dry season in 2008. In this study focus is on the dry season aerosol fluxes, with significant influence from biomass burning, and these are compared with aerosol fluxes measured during the wet season. Net particle deposition fluxes dominated in daytime in both seasons and the deposition flux was considerably larger in the dry season due to the much higher dry season particle concentration. The particle transfer velocity increased linearly with increasing friction velocity in both seasons. The difference in transfer velocity between the two seasons was small, indicating that the seasonal change in aerosol number size distribution is not enough for causing any significant change in deposition velocity. In general, particle transfer velocities in this study are low compared to studies over boreal forests. The reasons are probably the high percentage of accumulation mode particles and the low percentage of nucleation mode particles in the Amazon boundary layer, both in the dry and wet season, and low wind speeds in the tropics compared to the midlatitudes. In the dry season, nocturnal particle fluxes behaved very similar to the nocturnal CO(2) fluxes. Throughout the night, the measured particle flux at the top of the tower was close to zero, but early in the morning there was an upward particle flux peak that is not likely a result of entrainment or local pollution. It is possible that these morning upward particle fluxes are associated with emission of primary biogenic particles from the rain forest. Emitted particles may be stored within the canopy during stable conditions at nighttime, similarly to CO(2), and being released from the canopy when conditions become more turbulent in the morning.National Institute for Research in the Amazon (INPA)LBACNPq/MCTFAPES

Aerosol number fluxes over the Amazon rain forest during the wet season

Number fluxes of particles with diameter larger than 10 nm were measured with the eddy covariance method over the Amazon rain forest during the wet season as part of the LBA (The Large Scale Biosphere Atmosphere Experiment in Amazonia) campaign 2008. The primary goal was to investigate whether sources or sinks dominate the aerosol number flux in the tropical rain forest-atmosphere system. During the measurement campaign, from 12 March to 18 May, 60% of the particle fluxes pointed downward, which is a similar fraction to what has been observed over boreal forests. The net deposition flux prevailed even in the absolute cleanest atmospheric conditions during the campaign and therefore cannot be explained only by deposition of anthropogenic particles. The particle transfer velocity v(t) increased with increasing friction velocity and the relation is described by the equation v(t) = 2.4x10(-3)xu(*) where u(*) is the friction velocity. Upward particle fluxes often appeared in the morning hours and seem to a large extent to be an effect of entrainment fluxes into a growing mixed layer rather than primary aerosol emission. In general, the number source of primary aerosol particles within the footprint area of the measurements was small, possibly because the measured particle number fluxes reflect mostly particles less than approximately 200 nm. This is an indication that the contribution of primary biogenic aerosol particles to the aerosol population in the Amazon boundary layer may be low in terms of number concentrations. However, the possibility of horizontal variations in primary aerosol emission over the Amazon rain forest cannot be ruled out.National Institute for Research in the Amazon (INPA)LBA infrastructure teamCNPq/MCT Millennium Institute ProgramFAPES

Functional significance of the Rad51-Srs2 complex in Rad51 presynaptic filament disruption

The SRS2 (Suppressor of RAD Six screen mutant 2) gene encodes an ATP-dependent DNA helicase that regulates homologous recombination in Saccharomyces cerevisiae. Mutations in SRS2 result in a hyper-recombination phenotype, sensitivity to DNA damaging agents and synthetic lethality with mutations that affect DNA metabolism. Several of these phenotypes can be suppressed by inactivating genes of the RAD52 epistasis group that promote homologous recombination, implicating inappropriate recombination as the underlying cause of the mutant phenotype. Consistent with the genetic data, purified Srs2 strongly inhibits Rad51-mediated recombination reactions by disrupting the Rad51-ssDNA presynaptic filament. Srs2 interacts with Rad51 in the yeast two-hybrid assay and also in vitro. To investigate the functional relevance of the Srs2-Rad51 complex, we have generated srs2 truncation mutants that retain full ATPase and helicase activities, but differ in their ability to interact with Rad51. Importantly, the srs2 mutant proteins attenuated for Rad51 interaction are much less capable of Rad51 presynaptic filament disruption. An internal deletion in Srs2 likewise diminishes Rad51 interaction and anti-recombinase activity. We also present evidence that deleting the Srs2 C-terminus engenders a hyper-recombination phenotype. These results highlight the importance of Rad51 interaction in the anti-recombinase function of Srs2, and provide evidence that this Srs2 function can be uncoupled from its helicase activity