Search results for "Otan"
showing 10 items of 6391 documents
Tuottavan hämmennyksen äärellä : näkökulmia feministiseen pedagogiikkaan ympäristökriisien aikakaudella
2021
Artikkelissa hahmottelemme ympäristökriisit huomioivaa ja ympäristön suhteen vastuullista toimijuutta tuottavaa feminististä pedagogiikkaa tiedontuotannon kysymyksenä. Tarkastelemme ensinnäkin feministisen pedagogiikan eri keskusteluperinteitä ja niiden mahdollisuuksia ympäristökriisien ymmärtämisessä ja käsittelyssä. Toiseksi hahmottelemme queer-pedagogiikan pohjalta ympäristökysymykset huomioivaa erojen pedagogiikkaa, jossa sovellamme tuottavan hämmennyksen käsitettä ympäristökysymyksiin. Esitämme, että tuottava hämmennys auttaa ymmärtämään erilaisten erojen ja epämukavuuksien vaikutuksia tiedontuotantoon sekä kyseenalaistamaan niitä käsitteitä, ilmiöitä ja ymmärryksiä, joista ”ympäristö”…
Hakuperustainen proseduraalinen sisällöntuotanto tietokonepeleissä
2015
Proseduraaliset sisällöntuotantomenetelmät ovat viime aikoina kasvattaneet suosiotaan akateemisessa tutkimuksessa, erityisesti hakuperustaiset optimointiongelmia ratkaisevat menetelmät. Peliteollisuudessa näistä menetelmistä voi olla suurta hyötyä etenkin pienille yrityksille sekä yksittäisille ohjelmoijille, joilla ei ole resursseja tuottaa paljon sisältöä manuaalisesti. Aihetta käsittelevillä tutkimuksilla on tärkeä merkitys menetelmien kehittämisessä riittävän toimiviksi, että niitä voitaisiin käyttää pelituotannossa. Procedural content generation has recently been a surge in academic research. Especially search-based approaches have seen a rise in popularity. For the game industry these…
Botany_Theory Lectures_Pharmacy degree-UV_IsaacGarridoBenavent
2023
El document forma part dels materials docents programats mitjançant l'ajut del Servei de Política Lingüística de la Universitat de València. This document contains the teaching material corresponding to the subject Botany, which is taught in the first year of the Degree in Pharmacy at the University of Valencia. More specifically, this material is designed for the high performance group (ARA). It contains basic botany lessons (structure and reproduction) as well as others dedicated to describing the diversity of different botanical groups, such as plants, algae and fungi.
Seasonality of intra-specific cell size in the phytoplankton of Lake Kinneret
2015
A distinct pattern of seasonal fluctuations in intra-specific cell size and/or colony size was observed in a large number of phytoplankton species from Lake Kinneret, Israel. The same species showed larger cell size or colony size in late winter and smaller size in late summer, with intermediate sizes in the interim periods. This phenomenon was exhibited by species of chlorophytes, dinoflagellates and cyanobacteria that were abundant enough to be sampled (fortnightly) and measured throughout the year. The annual pattern of fluctuations in size repeated itself over 8 consecutive years (2004-2012). The size fluctuations were independent of the temporal changes observed in cell abundance of ea…
Degradation of an alkaloid pheromone from the pale-brown chafer, Phyllopertha diversa (Coleoptera: Scarabaeidae), by an insect olfactory cytochrome P…
1999
AbstractThe pale-brown chafer, Phyllopertha diversa, utilizes an unusual alkaloid, 1,3-dimethyl-2,4-(1H,3H)-quinazolinedione, as its sex pheromone. This compound is rapidly degraded in vitro by the antennal protein extracts from this scarab beetle. Demethylation at the N-1 position and hydroxylation of the aromatic ring have been identified as the major catabolic pathways. The enzyme responsible for the pheromone degradation is membrane-bound, requires NAD(P)H for activity and is sensitive to cytochrome P450 inhibitors, such as proadifen and metyrapone. The ability to metabolize this unusual pheromone was not detected in 12 species tested, indicating that the P450 system, specific to male P…
Identification, characterization and analysis of expression of genes encoding arylalkylamine N-acetyltransferases in the pea aphidAcyrthosiphon pisum
2013
Most organisms exhibit some kind of rhythmicity in their behaviour and/or physiology as an adaptation to the cyclical movements of the Earth. In addition to circadian rhythms, many organisms have an annual rhythmicity in certain activities, such as reproduction, migration or induction of diapause. Current knowledge of the molecular basis controlling seasonal rhythmicity, especially in insects, is scarce. One element that seems to play an essential role in the maintenance of both circadian and seasonal rhythms in vertebrates is the hormone melatonin. In vertebrates, the limiting enzyme in its synthesis is the arylalkylamine N-acetyltransferase (AANAT). Melatonin is also present in insects bu…
Photoperiodic effects on diapause-associated gene expression trajectories in EuropeanLeptinotarsa decemlineatapopulations
2014
Behavioural and physiological changes during diapause, an important strategy of insects for surviving harsh seasonal conditions, have been intensively studied. The genetic and molecular mechanisms underpinning diapause development are less well known. We took a candidate gene approach to study prediapause gene expression patterns in the Colorado potato beetle (Leptinotarsa decemlineata), an invasive insect that has rapidly spread northwards to high seasonality environments. Newly eclosed beetles originating from southern (Italy) and northern (Russia) Europe were reared under short- [12 h light (L):12 h dark (D)] and long-day (18L:6D) photoperiods for 10 days. This time period includes the s…
The role of light in the emergence of weeds: using Camelina microcarpa as an example
2015
When modelling the emergence of weeds, two main factors are considered that condition this process: temperature and soil moisture. Optimum temperature is necessary for metabolic processes that generate energy for growth, while turgor pressure is necessary for root and shoot elongation which eventually leads to seedling emergence from the soil. Most emergence models do not usually consider light as a residual factor, but it could have an important role as it can alter directly or indirectly the dormancy and germination of seeds. In this paper, inclusion of light as an additional factor to photoperiod and radiation in emergence models is explored and compared with the classical hydrothermal t…
The effect of light quality on anther culture of Citrus clementina Hort. ex Tan.
2005
This pre lim i nary re search re ports re sults on the in flu ence of light qual ity on an ther cul ture of Cit rus clementina Hort. ex Tan., cultivar Nules. Af ter one month of cul ti va tion in dark - ness, four light quali ties were tested: White, Red, Far-Red and Blue. Con tin u ous Dark ness and White light un der photoperiod of 16 hrs were used as a con trol con di tions. Ga metic embryoids and embryogenic cal lus were ob tained only un der photoperiodic con di tions of White light, sug gest ing that the al - ter na tion of light and dark can be used for the pro cess of ga - metic embryogenesis in Cit rus.
Deregulated Copper Transport Affects Arabidopsis Development Especially in the Absence of Environmental Cycles
2010
Abstract Copper is an essential cofactor for key processes in plants, but it exerts harmful effects when in excess. Previous work has shown that the Arabidopsis (Arabidopsis thaliana) COPT1 high-affinity copper transport protein participates in copper uptake through plant root tips. Here, we show that COPT1 protein localizes to the plasma membrane of Arabidopsis cells and the phenotypic effects of transgenic plants overexpressing either COPT1 or COPT3, the latter being another high-affinity copper transport protein family member. Both transgenic lines exhibit increased endogenous copper levels and are sensitive to the copper in the growth medium. Additional phenotypes include decreased hypo…