Search results for "RANSAC"
showing 10 items of 346 documents
The Hold-Up Problem in Agricultural Contracts. A Study of Contractual Correlations Between Polish Groups of Agricultural Producers and First Recipien…
2018
Problem pułapki przed- i post-kontraktowej ma miejsce, gdy partnerzy cechują się oportunizmem, kontrakt jest niekompletny i występuje konieczność dokonania inwestycji zarówno o charakterze specyficznym, jak i ogólnego użytku. Na problem pułapki kontraktowej mogą być narażeni producenci rolni choćby ze względu na słabszą pozycję rynkową czy też niski poziom zintegrowania horyzontalnego. W artykule wyznaczono dwa cele. Pierwszy stanowi identyfikację umów rolnych, z których realizacją wiązało się dokonanie inwestycji w aktywa trwałe (problem pułapki post-kontraktowej). Drugim zaś jest rozpoznanie grup producentów rolnych, które według własnej opinii były w toku swej działalności narażone na wy…
Qualité et coordination économique dans les industries agroalimentaires. Analyse institutionnelle comparée de l'industrie du vin en Bourgogne, Califo…
2004
Since the 1990s, the French wine exporters have been confronted with an increasing competition from a few nations of North America and the Southern Hemisphere. Initially positioned on the medium-range, the New World Wine Producers quickly developed their positions on the whole of the segments, including those traditionally occupied by French wines under controlled label of origin (AOC). The thesis examines the link between wine marketer' quality strategies and the coordination in the chain of production. Research is carried out on two levels: that of transactions governance structures concerning fresh grape, must and bulk wine, and that of the public rules framing these transactions. Firstl…
Valūtas un valūtas kursa svārstību ierobežošana ilgtermiņa līgumos
2017
Bakalaura darbs „Valūta un valūtas kursa svārstību ierobežošana ilgtermiņa līgumos” sniedz ieskatu jautājumos par maksājuma izdarīšanas valūtu un valūtas kursa svārstību ierobežošanu līgumā. Darba mērķis ir izpētīt, kādā valūtā maksājums izdarāms, ja puses līgumā par to tieši nav vienojušās, kā arī noskaidrot efektīvākos valūtas kursa svārstību ierobežošanas veidus. Pētījuma rezultātā autore konstatē kritērijus, atbilstoši kuriem tiek noteikta maksājuma izdarīšanas valūta un identificē efektīvākos mehānismus valūtas kursa svārstību ierobežošanai līguma ietveros. Atslēgvārdi: valūta, valūtas kurss, valūtas kursa svārstības, darījuma risks, valūtas de-valvācija, valūtas revalvācija.
Serotonin receptor agonist treatment induces transactivation of fibroblast growth factor receptor-1 (FGFR1) tyrosine kinase in the rat hippocampal ne…
2010
Over the past decade, many examples of activation of receptor tyrosine kinases in response to G-protein coupled receptor signaling have been reported, indicating that there are alternative modes of receptor tyrosine kinase activation (transactivation) in the absence of neurotrophic factor binding. In the present work, we aimed to examine if 5-HT receptor subtype activation may induce fibroblast growth factor receptor-1 (FGFR1) phosphorylation through transactivation of tyrosine kinase. The study has been performed in young adult rats treated with the selective 5-HT1A receptor agonist 8-OHDPAT at the dose of 0.4 mg/kg/i.p.. FGFR1 phosphorylation was evaluated by immunoprecipitation and weste…
Transparency in transactive energy at distribution level
2017
A recent report from the German Energy Agency analyzes the possible introduction of the blockchain technology in energy transactions in power distribution. The issue deserves attention since the extensive digitalization of business models puts new challenges to utilities in the power sector. The German decision makers in the energy field claim that blockchain appears as a close perspective and, at the same time, the Gartner hypecycle puts this technology at the peak of inflated expectations in 2016. Diffuse perception however provides hints for further investigation on the topic. This paper provides insight into the problem of peer-to-peer energy exchange from a technical perspective, provi…
Mining Maximal Frequent Patterns in Transactional Databases and Dynamic Data Streams: A Spark-based Approach
2018
Mining maximal frequent patterns (MFPs) in transactional databases (TDBs) and dynamic data streams (DDSs) is substantially important for business intelligence. MFPs, as the smallest set of patterns, help to reveal customers’ purchase rules and market basket analysis (MBA). Although, numerous studies have been carried out in this area, most of them extend the main-memory based Apriori or FP-growth algorithms. Therefore, these approaches are not only unscalable but also lack parallelism. Consequently, ever increasing big data sources requirements cannot be met. In addition, mining performance in some existing approaches degrade drastically due to the presence of null transactions. We, therefo…
Early marriage and cultural constructions of adulthood in two slums in Dar es Salaam.
2018
This study examines under-18 marriage in urban Tanzania from an ethnographic perspective. Due to poverty and high unemployment, some girls aspire to early marriage. Two pathways to early marriage are identified: first, poverty and gendered economic disparities motivate girls to begin transactional sexual activity at an early age, leading parents to favour early marriage as a risk-reduction measure. Second, educational opportunities are often closed off to girls before marriage, as a result of which early marriage becomes the only culturally approved pathway that allows girls to present themselves to others as a self-sufficient agent. These pathways are reinforced by cultural and religious c…
The theory of informal transactions in bureaucracies: some qualifications
1986
The ambition of the paper is certainly not to change substantially Breton and Wintrobe‘s story. We can be sure that many of the differentpieces that they have forged and assembled in their book v ill be replaced or modified in the course of time. This is the fate of all interesting theories. But only time-consuming and collective efforts can achieve this. The only ambition of this paper is a small beginning in that direction. Section II of the paper compares some of the mechanisms, others than trust, vhich have been proposed to explain self-enforcing exchanges. Then, Breton 8nd Wint robe's modelling of trust and trust accumulation is looked at critically in Section III. Section IV presents …
Tourism-related informal interaction in Chembe, Malawi : an ethnographic study
2016
Tutkielmassa tarkastellaan turismin liittyvää vapaamuotoista kanssakäymistä paikallisten malawilaisten sekä ulkomaalaisten asukkaiden ja matkailijoiden välillä. Etnografinen pääaineisto on kerätty Malawissa keväällä 2013 ja se koostuu haastatteluista ja muistiinpanoista. Tosisijainen aineisto koostuu raporteista ja asiakirjoista, joiden tarkoitus on hahmotella ruohonjuuritason vuorovaikutukselle laajempi yhteiskunnallinen konteksti. Metodologisesti tutkielma hyödyntää ranskalaisen sosiologin ja etnologin Pierre Bourdieun esittelemää käytännön teoriaa ja sen keskeisiäkäsitteitä, jotka ovat kenttä, pääoma ja habitus. Tutkielman tarkoitus on valottaa niitä tekijöitä, jotka määrittävät eri toim…
Multimodal intervention in children with attention‐deficit hyperactivity disorder
1994
ABSTRACT Children (N = 3) with attention‐deficit hyperactivity disorders were trained by using a multimodal programme, which comprised three types of intervention: children's individual and group‐based cognitive training, parent training and classroom intervention. The study was done using the experimental single‐case design. Baseline and progress were evaluated by classroom observations, questionnaires and rating scales. Results concerning the two children who were able to finish the programme were promising. Progress was seen in both classroom observations and parent and teacher ratings. Results are discussed and considered from the transactional point of view and some ideas about develop…