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Genetic evidence for divergent selection onOenanthe conioidesandOe. aquatica(Apiaceae), a candidate case for sympatric speciation
2014
The opportunity for habitat shift in sympatry is thought to be an important factor in sympatric speciation by facilitating assortative mating and offering opportunities for divergent selection. Oenanthe conioides (Apiaceae) is a narrow endemic from the lower Elbe river area (Germany) where it is restricted to areas experiencing fresh water tides inundating the plants twice a day. The species was shown to have originated from Oe. aquatica which is widely distributed in Europe and grows in still or slowly flowing fresh water. Reciprocal transplant experiments have previously shown that in both habitats the non-native species is less fit than the native, and several phenotypic traits have been…
L'ecomuseo del grano e del pane: un percorso progettuale centrato sul design
2018
La festa di S. Giuseppe, oltre che un’importante e sentita ricorrenza religiosa, è a Salemi soprattutto la “festa dei pani”; bellissime realizzazioni di alto artigianato artistico, la cui sapienza si tramanda nelle famiglie e nelle associazioni di donne che per mesi lavorano alla produzione dell’enorme quantità delle piccole e grandi forme di pane, per rivestire le costruzioni votive che accolgono il rito della cena. Nasce quindi l’idea di proporre un “Ecomuseo del grano e del pane” nel Collegio dei Gesuiti, valorizzando e riaprendo al pubblico uno spazio di grande interesse storico-architettonico. Nell’ambito della consolidata collaborazione del Comune di Salemi con il Dipartimento di Arch…
New Representations for Multidimensional Functions Based on Kolmogorov Superposition Theorem. Applications on Image Processing
2012
Mastering the sorting of the data in signal (nD) can lead to multiple applications like new compression, transmission, watermarking, encryption methods and even new processing methods for image. Some authors in the past decades have proposed to use these approaches for image compression, indexing, median filtering, mathematical morphology, encryption. A mathematical rigorous way for doing such a study has been introduced by Andrei Nikolaievitch Kolmogorov (1903-1987) in 1957 and recent results have provided constructive ways and practical algorithms for implementing the Kolmogorov theorem. We propose in this paper to present those algorithms and some preliminary results obtained by our team…
Our Thoughts and Their Objects
2015
This chapter is about how we as adults use language to represent these qualified things. I first show that the objects of our true thoughts are what Chrysippus called obtaining propositions, which is what we now call facts. Then I look at four kinds of thought and the kinds of fact they represent. I start with two kinds of thought that are unique in that they are guaranteed to be true, according to Chrysippus, namely sense perceptions and preconceptions. I argue that sense perceptions represent so-called simple facts and that all conceptions represent the sort of non-simple facts that can be captured in conditionals. I then look at two kinds of thought that are indispensable when we engage …
Extracting Features from Social Media Networks Using Semantics
2016
This paper focuses on the analysis of social media content generated by social networks (e.g. Twitter) in order to extract semantic features. By using text categorization to sort text feeds into categories of similar feeds, it has been proved to reduce the overhead that is required to retrieve these feeds and at the same time, it provides smaller pools in which further investigations can be made easier. The aim of this survey is to draw a user profile, by analysing his or her tweets. In this early stage of research, being a pre-processing phase, a dictionary based approach is considered. Moreover, the paper describes an algorithm used in analysing the text and its preliminary results. This …
On the analysis of a new Markov chain which has applications in AI and machine learning
2011
Accepted version of an article from the conference: 2011 24th Canadian Conference on Electrical and Computer Engineering. Published version available from IEEE: http://dx.doi.org/10.1109/CCECE.2011.6030727 In this paper, we consider the analysis of a fascinating Random Walk (RW) that contains interleaving random steps and random "jumps". The characterizing aspect of such a chain is that every step is paired with its counterpart random jump. RWs of this sort have applications in testing of entities, where the entity is never allowed to make more than a pre-specified number of consecutive failures. This paper contains the analysis of the chain, some fascinating limiting properties, and some i…
Zīmola "Laima" preču sortimenta analīze un tā pilnveidošanas iespējas segmentēšanas aspektā.
2015
Pētījuma tēma ir „Zīmola „Laima” preču sortimenta analīze un tā pilnveidošanas iespējas segmentēšanas aspektā”. Darba mērķis - pamatojoties uz teorētiskajām atziņām, uzņēmuma „Laima” klientu aptaujas un intervijas rezultātiem, izpētīt zīmola „Laima” produktu sortimenta pilnveidošanas iespējas, novērtēt produktu sortimentu un tā īpašības, atklāt nepilnības tirgus segmentēšanas aspektā un sniegt priekšlikumus pilnveidošanai. 1.nodaļā sniegts ieskats teorētiskos jautājumos par produktu un tirgus segmentēšanu, 2.nodaļā tiks pētīti uzņēmuma „Laima” darbības attīstības posmi un noteikti, galvenie, produktu sortimenta raksturlielumi un izvērtēta „Laima” tirgus pozīcija, 3.nodaļā analizēts patērētā…
Sorting and recycling of waste in Latvia in the context of circular economy goals
2020
Nepаreizа sаdzīves аtkritumu iznīcināšаnа ir rаdījusi lielu kаitējumu videi, kаs ir viens no gаlvenаjiem cēloņiem аugstаjаm piesārņojumа līmenim Eiropā. Līdz аr to Eiropаs Komisijа ir izstrādājusi аprites ekonomikаs plānu, kurā ir detаlizēti norādītаs аtkritumu аpsаimniekošаnаs vаdlīnijаs pārejаi uz аprites ekonomiku. Mаģistrа dаrbа mērķis ir novērtēt аtkritumu аpsаimniekošаnаs jomаs аttīstībаs progresu un tendences nākotnē un noteikt, vаi Lаtvijа spēs sаsniegt Eiropаs Komisijаs izvirzītos аprites ekonomikаs pаketes аtkritumu pārstrādes un аpglаbāšаnаs mērķus. Аr iedzīvotāju аptаuju аnаlīzi un lаikа rindu prognozēšаnu tikа konstаtēts, kа Lаtvijā neizdosies sаsniegt аprites ekonomikаs izvirz…
Efektīva sortimenta plānošana uzņēmumā
2016
Bakalaura darba tēma ir „Efektīva sortimenta plānošana uzņēmumā”. Bakalaura darba mērķis ir izpētīt efektīva sortimenta veidošanas teorētiskos aspektus mazumtirdzniecībā un novērtēt sortimenta plašuma ietekmi uz patērētāju uztveri, analizēt uzņēmuma Euroaptieka, SIA sortimenta politiku un sniegt priekšlikumus tās pilnveidošanai, detalizētāk pievēršoties uztura bagātinātāju kategorijai. Iegūtie rezultāti liecina, ka uzņēmumā izmantojama pieeja nodrošina kategorijas attīstību kopumā, bet tā nav vienmērīga un ir nepieciešams veikt pilnveidojumus procesā un mārketinga komunikācijās. Darba apjoms ir 65 lapaspuses. Tajā ir iekļautas 7 tabulas, 13 attēli, 4 pielikumi, izmantoti 40 literatūras datu…
QSPR Modeling of Hydrocarbon Dipole Moments by Means of Correlation Weighting of Local Graph Invariants
2003
Hydrocarbon dipole moments are calculated by means of correlation weighting of local graph invariants within the context of QSPR theory. This sort of flexible topological descriptor is used for several parameters: local invariants of k th vertex in the labeled hydrogen filled graph extended connectivity of zero-, first- and second-orders, number of paths of length 2 at k th vertex and valence shell of the k th vertex. The models predict hydrocarbon dipole moments in a quite sensible way. The best model is that one based upon numbers of path length 2 correlation weighting.