Search results for "Pater"
showing 10 items of 278 documents
Joint brood guarding in parent bugs — an experiment on defence against predation
1995
Females of Elasmucha grisea defend their eggs and small nymphs against invertebrate predators. Females sometimes guard their clutches side by side on the same birch leaf. We studied benefits of this joint guarding both in the field and in the laboratory. We found that adjacent females had significantly larger clutches than solitary females. In the laboratory, we studied the effectiveness of joint versus single defence against ant (Formica uralensis) predators. We established female pairs from initially singly guarding females by cutting off pieces of leaves with egg clutches and pasting them beside another female guarding her clutch. In the control group the females with their clutches were…
Ocean acidification affects fish spawning but not paternity at CO2 seeps
2016
Fish exhibit impaired sensory function and altered behaviour at levels of ocean acidification expected to occur owing to anthropogenic carbon dioxide emissions during this century. We provide the first evidence of the effects of ocean acidification on reproductive behaviour of fish in the wild. Satellite and sneaker male ocellated wrasse (Symphodus ocellatus) compete to fertilize eggs guarded by dominant nesting males. Key mating behaviours such as dominant male courtship and nest defence did not differ between sites with ambient versus elevated CO2 concentrations. Dominant males did, however, experience significantly lower rates of pair spawning at elevated CO2 levels. Despite the higher r…
Paternitātes brīvprātīga atzīšana un apstrīdēšana
2022
Bakalaura darbā “Paternitātes brīvprātīga atzīšana un apstrīdēšana” autore ir identificējusi vairākas problēmas, kas attiecas uz paternitātes brīvprātīgu atzīšanu un apstrīdēšanu. Bērna aizsardzība starptautiskos dokumentos ir noteikta par primāru uzdevumu, tomēr atsevišķos gadījumos praksē tiek lemts, ievērojot arī bioloģisko vecāku cilvēktiesības. Latvijā paredzētais paternitātes brīvprātīgas atzīšanas regulējums pašlaik atbilst starptautisko tiesību principiem, to nostiprina arī Satversmes tiesas nolēmumi. Taču jāņem vērā, ka pašlaik notiek ģimenes tiesību principu saskaņošana Eiropas mērogos, un tas attiecas arī uz daudziem pamatjautājumiem, pašu jēdzienu paternitāte ieskaitot. Šis jēdz…
Compensatory education: Long-term effects of early parental implication (and III: The C.P.C.)
2007
After describing the program of early compensatory education (from age 3 to 9), called Chicago Child-Parent Centers (CPC), this article collects and analyses the evaluation studies of that Program from a longitudinal perspective – Chicago Longitudinal Study (CLS)-, focusing primarily on methodological problems and afterwards on the short and, mainly, long terms effects, until the targeted subjects of the Program reached the age of 24. The studies confirm the Program has lasting educational (higher performance and educational achievements) and social (higher social adjustment) effects. Subsequently, it analyses which elements of the Program can produce these beneficial effects, which are bas…
The Other in Western Civilization
2017
This chapter explores how the Otherness was imagined by Europeanness, as well as the stereotypes, prejudices and idealized image around the non-Western Other. This section not only discusses to what extent Europe launched to colonize the world but the socio-cultural background for the European proclamation of supremacy over the rest of the world. The perverse core of European ethnocentrism rests in its paternalism to understand the cultural difference, adjoined to the rise and consolidation of Science, which paradoxically accelerated what David Riesman dubbed ‘the Other-oriented’ gaze. This is the moment of great technological breakthrough and the flourishing of romantic novels, literature …
Premesse a uno studio sulle questioni di fine vita nel diritto penale: una riflessione a partire dal liberalismo di Joel Feinberg
2010
LE QUESTIONI SOTTESE AL TEMA DELLE DECISIONI DI FINE VITA SI CARATTERIZZANO TUTTE PER LA PRESENZA DI UN COMUNE PROFILO PROBLEMATICO : RAVVISABILE NELLA VALUTAZIONE DELLA PORTATA DEL PRINCIPIO DIO AUTONOMIA O AUTODETERMINAZIONE DELLA PERSONA DALLA QUALE SEMBRA DIPENDERE LA SOLUZIONE DI MOLTEPLICI PROBLEMI GIURIDICI CHE VENGONO SPESSO AFFRONTATI IN SEDE APPLICATIVA COME IPOTESI DI CONFLITTI DI DIRITTI O DI DOVERI. L'AUTORE SEGUE UN APPROCCIO CHE PRENDE LE MOSSE DAL LIBERALISMO DI JOEL FEINBERG PER ESAMINARE ANCHE SOTTO UNA DIVERSA PROSPETTIVA ALCUNE DECISIONI DELLA GIURISPRUDENZA ITALIANA SUL PROBLEMA DELLA EUTANASIA E DEL FINE VITA
Sexual and natural selection on body mass and metabolic rates in free-living bank voles
2010
Summary 1. Because energy is a crucial resource, adaptive significance of variation in the rate of energy metabolism, and especially in basal (BMR) and maximum aerobic (VO2max) metabolic rates, is a popular theme in evolutionary and ecological physiology. However, little is known about the association of these traits with fitness components in populations of free-living animals. 2. We studied the association between body size, the metabolic rates, and reproductive success in bank voles (Myodes glareolus) in an isolated, small island population. Correlation analyses were performed for two measures of reproductive performance: mating success (the number of partners with which an individual ha…
Henkilöstön johtaminen Valkeakosken tehdasyhteisössä Rudolf ja Juuso Waldenin aikakaudella 1924-1969
2012
Effects of male removal on female foraging behavior in the Eurasian treecreeper
1997
In old, spruce-dominated forests of central Finland, Eurasian treecreepers Certhia familiaris divide their territories spatially during the breeding season. Females forage primarily on the upper parts of the tree trunks, while males use the lower parts of the tree trunks. In this study we removed males from eight territories in the early nestling period to see if the mate's absence would change the foraging patterns of the resident female. Widowed females foraged at lower heights, thus behaving more like paired males. These females also spent less time on each tree and on each foraging bout than did paired females. We conclude that male removal facilitated the change in a female's foraging …