Search results for "Flow"
showing 10 items of 5185 documents
Flow'n vaikutus impulssiostamiseen verkkokaupoissa
2017
Kaupankäynti on siirtynyt viime aikoina hyvin nopeasti verkkoympäristöihin, nopean teknologisen kehittymisen seurauksena. Verkkokaupat ovat loistava ympäristö saada kuluttajat tekemään ylimääräisiä impulssiostoja, koska kuluttajille on vaivatonta tarjota ostoärsykkeitä ja ostaminen on heille helppoa ja nopeaa. Impulssiostaminen tulee tulevaisuudessa olemaan myynnin kannalta selkeä kilpailuetu verkkokauppiaille. Myös flow on seikka, jota kuluttajat vaativat nykyään verkkosivuilta, koska se tarjoaa miellyttävän asiakaskokemuksen. Tämän tutkimuksen tarkoituksena on selvittää vaikuttaako flow-kokemus impulssiostamiseen verkkokaupassa ja kuinka verkkokauppiaat voisivat hyödyntää enemmän flow-kok…
Oxymetazoline modulates proinflammatory cytokines and the T‐cell stimulatory capacity of dendritic cells
2007
The nasal decongestant oxymetazoline (OMZ) is frequently used in the topical treatment of rhinitis/sinusitis. As proinflammatory cytokines play a critical role in the development and maintenance of local inflammation, the aim of this study was to investigate the influence of OMZ on immune cells in order to diminish the mucosal infiltration of the nose. Peripheral blood mononuclear cells (PBMC) from buffy coats of healthy volunteers were isolated and stimulated in the presence or absence of OMZ. In addition, monocyte-derived dendritic cells (DC) were generated and different concentrations of OMZ were added. DC phenotype and their T-cell stimulatory properties were analysed. The vasoactive su…
Investigations of Anisotropic Flow Using Multiparticle Azimuthal Correlations in pp, p-Pb, Xe-Xe, and Pb-Pb Collisions at the LHC
2019
Measurements of anisotropic flow coefficients ($v_n$) and their cross-correlations using two- and multi-particle cumulant methods are reported in collisions of pp at $\sqrt{s} = 13$ TeV, p-Pb at $\sqrt{s_{_{\rm NN}}} = 5.02$ TeV, Xe-Xe at $\sqrt{s_{_{\rm NN}}} = 5.44$ TeV, and Pb-Pb at $\sqrt{s_{_{\rm NN}}} = 5.02$ TeV recorded with the ALICE detector. The multiplicity dependence of $v_n$ is studied in a very wide range from 20 to 3000 particles produced in the mid-rapidity region $|��|<0.8$ for the transverse momentum range $0.2 < p_{\rm T} < 3.0$ GeV/$c$. An ordering of the coefficients $v_2 > v_3 > v_4$ is found in pp and p-Pb collisions, similar to that seen in large coll…
Cell-cycle control in cell-biomaterial interactions
2000
Current biocompatibility testing involves the demonstration of cell proliferation, which is usually interpreted as a sign of positive biocompatibility when the materials sustain cell proliferation. As the field of biomaterials research is rapidly moving toward tissue-engineered devices and hybrid organs, control of cell function has become a main topic. Cell function, which involves specific differentiation pathways, cannot be separated from cell-cycle control. The study of cell-cycle control is an important extension of routine proliferation assays and has extensive roots in developmental and tumor biology. We studied the expression of the tumour suppressor gene p53 and the proliferation-a…
River flow monitoring: LS-PIV technique, an image-based method to assess discharge
2022
The measurement of the river discharge within a natural ort artificial channel is still one of the most challenging tasks for hydrologists and the scientific community. Although discharge is a physical quantity that theoretically can be measured with very high accuracy, since the volume of water flows in a well-defined domain, there are numerous critical issues in obtaining a reliable value. Discharge cannot be measured directly, so its value is obtained by coupling a measurement of a quantity related to the volume of flowing water and the area of a channel cross-section. Direct measurements of current velocity are made, traditionally with instruments such as current meters. Although measur…
Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEM) of a Customized Stent-Graft for Endovascular (EVAR) Treatment of Abdominal Aorti…
2023
Background: The treatment of abdominal aortic aneurysm (AAA) is today commonly treated by inserting a stent-graft by the endovascular route, without resorting to open surgery. However, some clinical cases do not allow this less invasive approach, meaning that the stent-graft cannot be inserted and open surgery is used. Methods: In the study, we propose a fluid–structure interaction (FSI) analysis of an aneurysmatic aorta that could not be treated with Endovascular Aneurysm Repair (EVAR). The vessel is reconstructed through segmentation from CT scans and subsequently modeled on CAD software to create the surface and thickness of the vessel itself. Subsequently, we proceeded to carry out Comp…
Exploring dialogical spaces of discovery
2023
This paper revisits two teacher-education contexts which we independently researched. Both contexts invested in teacher-professional transformation, presenting unique puzzles in our respective data analyses. Bringing together Bakhtinian dialogic theory and Natural Inclusionality (Rayner, 2017), we return to these puzzles in a reflective dialogue. The paper unpacks two emergent themes. The first theme details our sense-making of the dialogic-dialectic-dialogic flow as part of professional development, and the second theme captures our deliberations about the energy-filled spaces of the in-between that form part of teacher development in our contexts. The paper discusses key insights about th…
Learning games and children's user experience : the effects of context
2015
Tutkimuksen tarkoituksena oli tutkia, onko lasten käyttäjäkokemuksissa eroja heidän pelatessa digitaalista peliä kahdessa eri kontekstissa. Käyttäjäkokemuk-sia selvitettiin myös tarkastelemalla pelaajien flow kokemuksia. Tutkimuksessa käytettiin MinecraftEdu peliä, joka on TeacherGaming LLC yrityksen tekemä vi-rallinen opetusversio Minecraft pelistä. Pelaamisen kontekstit, jossa peliä pelat-tiin, olivat kouluaika ja vapaa-aika. Erilaisista konteksteista johtuen sekä ulkoiset tekijät että myös sisäiset tekijät kuten, päämäärät, tavoitteet, ja motivaatio vaihtelevat. Tutkimuksessa käytetyt metodit koostuivat ääneen ajattelun, obser-voinnin ja kyselyjen yhdistelmistä. Kontekstilla näytti oleva…
You'll never walk alone : tutkimus suomalaisista Everton-faneista
1999
Dependence of effective properties upon regular perturbations
2022
In this survey, we present some results on the behavior of effective properties in presence of perturbations of the geometric and physical parameters. We first consider the case of a Newtonian fluid flowing at low Reynolds numbers around a periodic array of cylinders. We show the results of [43], where it is proven that the average longitudinal flow depends real analytically upon perturbations of the periodicity structure and the cross section of the cylinders. Next, we turn to the effective conductivity of a periodic two-phase composite with ideal contact at the interface. The composite is obtained by introducing a periodic set of inclusions into an infinite homogeneous matrix made of a di…