236 research outputs found
Stop as a next-to-lightest supersymmetric particle in constrained MSSM
So far the squarks have not been detected at the LHC indicating that they are
heavier than a few hundred GeVs, if they exist. The lighter stop can be
considerably lighter than the other squarks. We study the possibility that a
supersymmetric partner of the top quark, stop, is the next-to-lightest
supersymmetric particle in the constrained supersymmetric standard model.
Various constraints, on top of the mass limits, are taken into an account, and
the allowed parameter space for this scenario is determined. Observing stop
which is the next-to-lightest supersymmetric particle at the LHC may be
difficult.Comment: v2: A few references, a plot indicating used parameters, discussion
about the role of parameters in determination of the stop NLSP, CCB minima
and a comment about (g-2) added. Typos corrected. Version in PR
A large Muon Electric Dipole Moment from Flavor?
We study the prospects and opportunities of a large muon electric dipole
moment (EDM) of the order (10^{-24} - 10^{-22}) ecm. We investigate how natural
such a value is within the general minimal supersymmetric extension of the
Standard Model with CP violation from lepton flavor violation in view of the
experimental constraints. In models with hybrid gauge-gravity mediated
supersymmetry breaking a large muon EDM is indicative for the structure of
flavor breaking at the Planck scale, and points towards a high messenger scale.Comment: 12 pages, 12 figures. v3: References and Eq 28 fixed; conclusions
unchange
Social responsibility of the elderly: conceptual summarizing of the issue and its contradictions
A Project-based Learning approach for teaching Robotics to Undergraduates
In this research we used a project-based learning approach to teach robotics basics to undergraduate business computing students. The course coverage includes basic electronics, robot construction and programming using arduino. Students developed and tested a robot prototype. The project was evaluated using a questionnaire. The evaluation result shows that students developed skills in circuit design, problem-solving and robot development for addressing real world problems and team work. The students had challenges of using limited resources for robot circuit design and construction. The research results indicate that robotics education through project-based learning motivates students to learn and implement computer artefact that addresses real world problems.Keywords: Robotics; Project-based learning; ICT
Health care climate, perceived self-care competence and glycemic control among patients with type 2 diabetes in primary care.
Peer reviewe
Bacterial metacommunity organization in a highly connected aquatic system
The spatial structure and underlying assembly mechanisms of bacterial communities have been studied widely across aquatic systems, focusing primarily on isolated sites, such as different lakes, ponds and streams. Here, our main aim was to determine the underlying mechanisms for bacterial biofilm assembly within a large, highly connected lake system in Northern Finland using associative methods based on taxonomic and phylogenetic alpha-and beta-diversity and a large number of abiotic and biotic variables. Furthermore, null model approaches were used to quantify the relative importance of different community assembly processes. We found that spatial variation in bacterial communities within the lake was structured by different assembly processes, including stochasticity, species sorting and potentially even dispersal limitation. Species sorting by abiotic environmental conditions explained more of the taxonomic and particularly phylogenetic turnover in community composition compared with that by biotic variables. Finally, we observed clear differences in alpha diversity (species richness and phylogenetic diversity), which were to a stronger extent determined by abiotic compared with biotic factors, but also by dispersal effects. In summary, our study shows that the biodiversity of bacterial biofilm communities within a lake ecosystem is driven by within-habitat gradients in abiotic conditions and by stochastic and deterministic dispersal processes.Peer reviewe
A search strategy for occupational health intervention studies
Background: As a result of low numbers and diversity in study type, occupational health intervention studies are not easy to locate in electronic literature databases. Aim: To develop a search strategy that facilitates finding occupational health intervention studies in Medline, both for researchers and practitioners. Methods: A gold standard of articles was created by going through two whole volumes of 19 biomedical journals, both occupational health specialty and non-occupational health journals. Criteria for occupational health intervention studies were: evaluating an intervention with an occupational health outcome and a study design with a control group. Each journal was searched independently by two of the authors. Search terms were developed by asking specialists and counting word frequencies in gold standard articles. Results: Out of 11 022 articles published we found 149 occupational health intervention studies. The most sensitive single terms were work*[tw] (sensitivity 71%, specificity 88%) and effect*[tw] (sensitivity 75%, specificity 63%). The most sensitive string was (effect*[tw] OR control*[tw] OR evaluation*[tw] OR program*[tw]) AND (work*[tw] OR occupation*[tw] OR prevention*[tw] OR protect*[tw]) (sensitivity 89%, specificity 78%). The most specific single terms were "occupational health"[tw] (sensitivity 22%, specificity 98%) and effectiveness[tw] (sensitivity 22%, specificity 98%). The most specific string was (program[tw] OR "prevention and control"[sh]) AND (occupational[tw] OR worker*[tw]) (sensitivity 47%, specificity 98%). Conclusion: No single search terms are available that can locate occupational health intervention studies sufficiently. The authors' search strings have acceptable sensitivity and specificity to be used by researchers and practitioners respectively. Redefinition and elaboration of keywords in Medline could greatly facilitate the location of occupational health intervention studies
Perusterveydenhuollon ja sosiaalitoimen henkilöstön työolot ja työuupumus neljässä kunnassa – Onko palvelutuotantotavalla väliä?
Tässä kyselytutkimuksessa verrattiin perusterveydenhuollon ja sosiaalitoimen henkilöstön psykososiaalisen työympäristön ja työuupumuksen muutoksia vuosina 2000 ja 2002 (N = 582/527) neljässä kunnassa, joista yhdessä perusterveyden- ja vanhustenhuollon palvelut tuotti kolmannen sektorin vapaaehtoisjärjestö ja muut sosiaalipalvelut kunta (Eteläkunta), kun taas kolmessa muussa kunnassa palvelut tuotettiin kunnallisesti (Itä-, Lounais- ja Länsikunta). Lisäksi tutkittiin työuupumukseen yhteydessä olevia tekijöitä. Eteläkunnassa oli ollut eniten muutoksia, mutta työn vaatimusten ja voimavarojen kehitys oli paras. Silti työuupumus oli lisääntynyt. Työuupumuksen keskiarvo oli kuitenkin alhaisin vuonna 2002. Johtajat olivat uupuneempia kuin muu henkilöstö. Palvelutuotantomallia paremmin työuupumusta selittivät työn vaatimukset, työn hallinta, työilmapiiri sekä henkilökunnan määrä ja riittävyys
Sparticle spectrum and constraints in anomaly mediated supersymmetry breaking models
We study in detail the particle spectrum in anomaly mediated supersymmetry
breaking models in which supersymmetry breaking terms are induced by the
super-Weyl anomaly. We investigate the minimal anomaly mediated supersymmetry
breaking models, gaugino assisted supersymmetry breaking models, as well as
models with additional residual nondecoupling D-term contributions due to an
extra U(1) gauge symmetry at a high energy scale. We derive sum rules for the
sparticle masses in these models which can help in differentiating between
them. We also obtain the sparticle spectrum numerically, and compare and
contrast the results so obtained for the different types of anomaly mediated
supersymmetry breaking models.Comment: LaTeX, 20 pages, 6 figures. A few comments and a reference added;
typos corrected; version published in Phys. Rev.
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