Search results for "QL"
showing 10 items of 424 documents
Three new species of Anacharis Dalman, 1823 (Hymenoptera: Figitidae), with revised taxonomy and distribution records of Palaearctic and Indomalayan s…
2018
An update of the current knowledge of Anacharis Dalman, 1823 for the Palaearctic and Indomalayan regions is given. The previously known Palaearctic species Anacharis antennata Belizin, 1951, Anacharis eucharoides (Dalman, 1818), Anacharis immunis Walker, 1835 and Anacharis parapsidalis Belizin, 1951 are redescribed. Three new species are described: Anacharis fergussoni sp. nov. from Europe, Anacharis norvegica sp. nov. from Norway and Anacharis belizini sp. nov. from Thailand, the first recorded Indomalayan species for the genus. Anacharis gracilipes Ionescu, 1969, is synonymized with A. eucharoides , while Anacharis flavidicornis Kieffer, 1910 is transferred to the genus Aegilips Haliday, …
Three new species of the subgenus Neoribates (Neoribates) (Acari, Oribatida, Parakalummidae) from Nepal
2014
Three new parakalummid mites of the subgenus Neoribates (Neoribates), N. (N.) parabulanovae sp. n., N. (N.) paramacrosacculatus sp. n. and N. (N.) pararotundus sp. n., are described from Nepalese soils. Neoribates (Neoribates) parabulanovae sp. n. is morphologically most similar to N. (N.) bulanovae Grishina, 2009, N. (N.) rotundus Aoki, 1982 and N. (N.) setiger Balogh & Mahunka, 1978, however, it differs from N. (N.) bulanovae by the body length, body and leg integument, morphology of bothridial setae, absence of aggenital setae, length of interlamellar setae and location of adanal setae ad3; from N. (N.) rotundus by the body size, body integument, morphology of bothridial setae and le…
Revision of New World Species of the Shore-fly Subgenus Allotrichoma Becker of the Genus Allotrichoma with Description of the Subgenus Neotrichoma (D…
2012
The New World species of the subgenera Allotrichoma Becker and Neotrichoma (new subgenus) are revised, including a phylogenetic analysis of the species groups and subgenera within the genus Allotrichoma. For phylogenetic perspective and to document the monophyly of the genus Allotrichoma and its included subgenera and species groups, we also provide a cladistic analysis of genera within the tribe Hecamedini. The ingroup included seven exemplar congeners from within Allotrichoma. Outgroup sampling included exemplars of other genera within Hecamedini and from the putative sister group, Lipochaetini, and to root the analysis, we used an exemplar of the tribe Discocerinini. Analyses with succes…
New western Palaearctic Dinotrema species with mesoscutal pit and only medially sculptured propodeum (Hymenoptera, Braconidae, Alysiinae)
2013
Descriptions of four new species of the genus Dinotrema Foerster with a mesoscutal pit and only medially sculptured propodeum are given. Dinotrema alysiae sp. n. (Denmark, England, Netherlands, Spain), D. paramicum sp. n. (Denmark, Finland), D. tirolense sp. n. (Italy) and D. valvulatum sp. n. (Denmark, Italy).
Living on the edge: Meoneura obscurella in the ‘Wieliczka’ Salt Mine (southern Poland) exhibits the first case of lecithotrophic ovoviviparity in the…
2021
During the studies on the invertebrate fauna of the subterranean part of the “Wieliczka” Salt Mine in Wieliczka, Poland, the presence of many specimens of the dipteran species Meoneura obscurella (Fallén 1823) was observed. Organic remains and faeces related to the presence of mice (Mus musculus) were indicated as a potential food source for the insects. M. obscurella displays lecithotrophic viviparity (ovoviviparity), which has developed due to extremely harsh abiotic conditions and a lack of food. This is the first documented case of lecithotrophic viviparity within the fly family Carnidae. Based on the ability of this species to inhabit and reproduce in the conditions of the subterranean…
Explaining Causes Behind SQL Query Formulation Errors
2020
This Full Research Paper presents the most prominent query formulation errors in Structured Query Language (SQL), and maps these errors to their cognitive explanations. Understanding query formulation errors is a key to teaching SQL. more effectively. However, studies on what kind of errors novices struggle with are relatively scarce when compared to, for example, programming languages. Although committing errors is a crucial part in learning, some errors are relatively easy to fix, and their commonness is not necessarily an indication of their difficulty. Other errors, however, halt the learning process, and are never fixed by the query writer. Using a previously established error taxonomy…
Relaatiotietokannat ja olio-ohjelmointi
2017
Olioparadigma on yleisesti hyväksytty tapa mallintaa sovellusohjelman monimutkaisuutta. Vastaavasti relaatioparadigmaan perustuvat relaatiokannat ovat keskeisessä roolissa tiedon tallentamisessa. Näiden kahden paradigman yhteensovittaminen ei ole ongelmatonta, vaan johtaa olio-relaatioyhteensopimattomuutena tunnettuun ongelmaan. Tämä tutkielma tarkastelee yhteensopimattomuuteen johtavia syitä ja esittelee metodeja sen kanssa selviytymiseksi Object-oriented paradigm is a widely accepted way to control complexity in software. Correspondingly relational databases based on the relational paradigm play a central role in storing information. Combining these two paradigms is not effortless but lea…
Role of volatile and contact pheromones in the mating behaviour of Bagrada hilaris (Heteroptera: Pentatomidae)
2008
Volatiles and contact pheromones involved in the mating behaviour of the Painted bug, Bagrada hilaris Burmeister (Het- eroptera: Pentatomidae), were investigated in behavioural and chemical experiments. Vertical open Y-shaped olfactometer bioassays showed that odour from males attract females but not males, while that from females did not attract either gender. Adult females were also attracted by hexane extracts of volatile compounds collected from males. In open arena bioassays, males displayed the characteristic steps of courtship behaviour in the presence of virgin females. Such courtship behaviour was displayed in the presence of females killed by freezing, but not in the presence of f…
Teksta auto-turpinājumi vizuālos SPARQL vaicājumos
2022
Līdzās tradicionālajām tīmekļa vietnēm jau 16 gadus pastāv datu veidojumus, kas tiek dēvēts par Saistītajiem Atvērtajiem datiem. Saistītie Atvērtie Dati piedāvā tīmeklī publicētu strukturētu un saistītu informāciju, kas pieejama mašīnlasāmā formā, atbilstoši RDF datu formātam. Datu izgūšana no Saistītajiem Atvērtajiem datiem ir iespējama ar SPARQL vaicājumu valodu, taču pieaugošie datu apjomi, elastīgās datu struktūras, kā arī netriviālā SPARQL vaicājumu valoda ierobežo šo datu izzināšanu un izgūšanu. Lai vienkāršotu datu izgūšanu no Saistītajiem Atvērtajiem datiem, eksistē rīki, kas vai nu vienkāršo SPARQL vaicājumu veidošanu vai arī pilnība to nomaskē aiz lietotājiem ērtas grafiskās saska…
Pilvisovelluksille sopivia tietokannan hallintajärjestelmiä
2012
Tässä tutkielmassa on tarkoitus selvittää, millaisia vaatimuksia pilvisovelluksilla on tietokannan hallintajärjestelmille ja miten ehdotetut järjestelmät täyttävät nämä vaatimukset. Tutkimus suoritetaan kirjallisuuskatsauksena, joka perustuu tieteellisiin julkaisuihin ja tutkimusartikkeleihin.Aluksi käsitellään pilvimaailman käsitteitä, ominaisuuksia ja haasteita tietokannan hallintajärjestelmille. Viime vuosina on kehitetty lukuisia uusia pilvi-sovelluksille suunnattuja tietokantatuotteita, joista suurin osa kuuluu termin NoSQL alle. NoSQL-tietokantatuotteet eivät perustu relaatioihin, eivätkä käytä pelkästään SQL-kieltä tiedon käsittelemiseen. Nämä ovat pilviympäristössä horisontaalisesti…