Search results for "AIRO"
showing 10 items of 84 documents
Essential oils composition of two Sicilian cultivars of Opuntia ficus-indica (L.) Mill. (Cactaceae) fruits (prickly pear).
2013
The essential oils composition of the skin, pulp and seeds from fruits of two Sicilian cultivars of Opuntia ficus-indica (cv. Sanguigna and cv. Surfarina) has been obtained by hydrodistillation and the possible antioxidant, antimicrobial and semiochemical roles have been investigated comparing the data with those reported in the literature. The presence of antioxidants and antimicrobials found in this study increases the spectrum of compounds that have beneficial properties in O. ficus-indica. In addition, several compounds identified in this study have been reported to influence the behaviour of Ceratitis capitata, a phytophagous pest which causes severe damages to several crops including …
Spider cues stimulate feeding, weight gain and survival of crickets
2014
1. To avoid predation, prey often change their behaviour upon encountering cues of predator presence. Such behavioural changes should enhance individual survival, but are likely to be energy-demanding. This should deplete energy reserves of the prey, unless it increases food intake. 2. These hypotheses were studied by conducting two microcosm experiments. In the first, crickets were kept on plants previously occupied by a spider or on control plants. After 3 days leaf consumption and weight gain of the crickets were quantified. In the second experiment, crickets were kept in the presence or absence of spider cues for 3 days. Spiders were then added and predation of the crickets was recorded…
L’istante necessario: tracce per un ethos del tempo
2002
Identification of biomarkers for diagnosis of thyroid cancer and exploration of their functional role in cancer development
2015
Elektroniskā versija nesatur pielikumus
Sub-lethal effects of deltamethrin on walking behaviour and response to host kairomone of the egg parasitoid Trissolcus basalis.
2002
The lethal doses of the pyrethroid deltamethrin were estimated for the egg parasitoid Trissolcus basalis (Wollaston) (Hymenoptera: Scelionidae), and the sub-lethal effects of an LD25 on female walking behaviour were evaluated. Linear speed of treated parasitoids was reduced compared with that of untreated ones for a period of up to 24 h. The sub-lethal effects of deltamethrin on parasitoid response to patches contaminated by a contact kairomone from its host, Nezara viridula L (Heteroptera: Pentatomidae), was also evaluated. Both treated and untreated parasitoids responded to host-contaminated patches by increasing residence time and decreasing linear speed. However, treated females showed …
The response of Trissolcus basalis to footprint contact kairomones from Nezara viridula females is mediated by leaf epicuticular waxes.
2009
Chemical footprints left behind by true bugs are perceived as contact kairomones by scelionid egg parasitoids. Female wasps encountering a contaminated artificial substrate display a characteristic arrestment posture, holding the body motionless and antennating the surface. In the system Nezara viridula (L.) and its egg parasitoid Trissolcus basalis (Wollaston), previous studies have shown that the kairomone mediating such behavior is part of N. viridula's cuticular hydrocarbons (CHC) and furthermore that the wasp's ability to discriminate host male and female footprints is mainly based on the presence/absence of nonadecane (nC(19)). In this study, the effect of epicuticular waxes of leaves…
LED gaismekļu izmantošanas iespējas bērzu un apšu in vitro pavairošanas procesā
2021
LED (light emitting diode) gaismekļi ir moderna, energoefektīva apgaismošanas tehnoloģija, ko var izmantot augu audzēšanai telpās, aizvietojot tradicionālās, neenergoefektīvās spuldzes. Pētījuma mērķis bija noskaidrot piemērotāko LED lampu gaismas spektrālo sastāvu, hibrīdo apšu un āra bērza mikropavairošanai. Salīdzināja trīs LED spektru kombinācijas: sarkano-zilo gaismu, sarkano-zilo gaismu ar papildus zaļo spektra daļu un sarkano-zilo-zaļo-dzelteno-oranžo spektru kombināciju. Kā kontroli izmantoja fluorescentās spuldzes ar pilnu spektru. Lai novērtētu šo gaismas spektru ietekmi uz bērzu un apšu augšanu un attīstību in vitro apstākļos, novērtēja morfoloģiskos parametrus - augu garumu, mas…
Avoidance and contextual learning induced by a kairomone, a pheromone and a common odorant in female CD1 mice
2015
Copyright © 2015 Fortes-Marco, Lanuza, Martínez-García and Agustín-Pavón.
The effect of hyperthyroidisation on the plumage of carnivorous birds
1931
Izvilkums no: Acta Zoologica, Stockholms högskola, Bd.11, 1930.
Autortiesību aizsardzības mehānismi.
2019
Autortiesību aizsardzības mehānismi ir noteikti dažādos veidos. Tie tiek regulēti gan privāttiesību līmenī, gan publisko tiesību līmenī. Autortiesību aizsardzība ir vitāli svarīga mūsdienu progresīvajā pasaulē, lai aizsargātu personu intelektuālās un radošās darbības rezultātus, bet autortiesību subjektiem pieejamie aizsardzības mehānismi ir pieejami necentralizēti un dažkārt visefektīvākais tiesību aizsardzības īstenotājs ir privāttiesiskais sektors. Maģistra darba mērķis ir izpētīt dažus autortiesību aizsardzības mehānismus, kas var tikt īstenoti kā preventīvi līdzekļu vai pēc tiesību aizskāruma. Darba rezultātā autors izceļ problēmjautājumu, kas saistīts ar pieejamo autortiesību aizsardz…