Vacuum Rabi splitting and strong coupling dynamics for surface plasmon polaritons and Rhodamine 6G molecules

We report on strong coupling between surface plasmon polaritons (SPP) and Rhodamine 6G (R6G) molecules, with double vacuum Rabi splitting energies up to 230 and 110 meV. In addition, we demonstrate the emission of all three energy branches of the strongly coupled SPP-exciton hybrid system, revealing features of system dynamics that are not visible in conventional reflectometry. Finally, in analogy to tunable-Q microcavities, we show that the Rabi splitting can be controlled by adjusting the interaction time between waveguided SPPs and R6G deposited on top of the waveguide. The interaction time can be controlled with sub-fs precision by adjusting the length of the R6G area with standard lithography methods.Comment: 4 pages, 4 figure

Users and non-users of web-based health advice service among Finnish university students – chronic conditions and self-reported health status (a cross-sectional study)

<p>Abstract</p> <p>Background</p> <p>The Internet is increasingly used by citizens as source of health information. Young, highly educated adults use the Internet frequently to search for health-related information. Our study explores whether reported chronic conditions or self-reported health status differed among Finnish university students using the Finnish Student Health Services web-based health advice service compared with those not using the service.</p> <p>Methods</p> <p>Cross-sectional study performed by a national postal survey in 2004. Material: A random sample (n = 5 030) of a population of 101 805 undergraduate Finnish university students aged 19–35. The response rate: 63% (n = 3 153). Main outcome measures: Proportion of university students reporting use a of web-based health advice service, diagnosed chronic conditions, and self-reported health status of users and non-users of a web-based health advice service. Statistical methods: Data were presented with frequency distributions and cross-tabulations and the χ²test was used.</p> <p>Results</p> <p>12% (n = 370) of Finnish undergraduate students had used the web-based health advice service and were identified as 'users'. The proportion of male students reporting allergic rhinitis or conjunctivitis was greater among users than non-users (24%, n = 22 vs. 15%, n = 154, χ², P = .03). The proportion of female students reporting chronic mental health problems was greater among users than non-users (12%, n = 34 vs. 8%, n = 140, χ², P = .03). There was no statistical significance between the group differences of male or female users and non-users in self-reported health status (good or fairly good, average, rather poor or poor).</p> <p>Conclusion</p> <p>Among young, highly educated adults the use of a web-based health advice service is not associated with self-reported health status. However, a web-based health advice service could offer support for managing several specific chronic conditions. More research data is needed to evaluate the role of web-based health advice services that supplement traditional forms of health services.</p

Delimitation of Funga as a valid term for the diversity of fungal communities: the Fauna, Flora & Funga proposal (FF&F)

As public policies and conservation requirements for biodiversity evolve there is a need for a term for the kingdom Fungi equivalent to Fauna and Flora. Thisneed is considered to be urgent in order to simplify projects oriented toward implemention of educational and conservation goals. In an informal meeting held duringthe IX Congreso Latinoamericano de Micología by the authors, the idea of clarifying this matter initiated an extensive search of pertinent terminologies. As a result ofthese discussions and reviews, we propose that the word Funga be employed as an accurate and encompassing term for these purposes. This supports the proposal of thethree Fs, Fauna, Flora and Funga, to highlight parallel terminology referring to treatments of these macrorganism of particular geographical areas. Alternative terms andproposals are acknowledged and discussedFil: Kuhar, José Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Furci, Giuliana. Fundación Fungi; ChileFil: Drechsler-Santos, Elisandro Ricardo. Universidade Federal de Santa Catarina; BrasilFil: Pfister, Donald H.. Harvard University; Estados Unido

Noteworthy records of aphyllophoroid fungi in Finland (Basidiomycota)

We present new records of noteworthy aphyllophoroid fungi, mainly polypores and corticioids in Finland. The following 19 rare or infrequently collected species are presented with notes on their substrates: Amylocorticium subsulphureum, Antrodiella parasitica, Ceraceomyces sulphurinus, Clavaria atroumbrina, Clavaria rosea, Gloeophyllum carbonarium, Hyphodontia flavipora, Junghuhnia fimbriatella, Lindtneria chordulata, Odonticium septocystidia, Peniophorella guttulifera, Perenniporia tenuis, Postia immitis, Repetobasidium vile, Resinicium pinicola, Sidera vulgaris, Tomentella coerulea, Trechispora laevis and Xylodon pruni. We also list 41 aphyllophoroid fungi as new to some sections of the boreal vegetation zone in Finland

Methods and tools for sustainable manufacturing networks—Results of a case study

Manufacturers need be proactive, innovative and operationally efficient to succeed in the current business environment. The transition toward sustainable manufacturing requires new approaches in the design, manufacture and use of products and services. These approaches need to take into account the network of stakeholders who influence and can be influenced by the sustainability of the product in the course of its life cycle. This paper presents results of a case study that used and tested methods and tools developed for creating a sustainable business model for a manufacturing company. The main research questions addressed here are: how to develop a sustainable business model; and how to explicitly illustrate to potential customers the life cycle costs of different solutions

The role of novel forest ecosystems in the conservation of wood-inhabiting fungi in boreal broadleaved forests

The increasing human impact on the earth’s biosphere is inflicting changes at all spatial scales. As well as deterioration and fragmentation of natural biological systems, these changes also led to other, unprecedented effects and emergence of novel habitats. In boreal zone, intensive forest management has negatively impacted a multitude of deadwood-associated species. This is especially alarming given the important role wood-inhabiting fungi have in the natural decay processes. In the boreal zone, natural broad-leaved-dominated, herb-rich forests are threatened habitats which have high wood-inhabiting fungal species richness. Fungal diversity in other broadleaved forest habitat types is poorly known. Traditional wood pastures and man-made afforested fields are novel habitats that could potentially be important for wood-inhabiting fungi. This study compares species richness and fungal community composition across the aforementioned habitat types, based on data collected for wood-inhabiting fungi occupying all deadwood diameter fractions. Corticioid and polyporoid fungi were surveyed from 67 130 deadwood particles in four natural herb-rich forests, four birch-dominated wood pastures, and four birch-dominated afforested field sites in central Finland. As predicted, natural herb-rich forests were the most species-rich habitat. However, afforested fields also had considerably higher overall species richness than wood pastures. Many rare or rarely collected species were detected in each forest type. Finally, fungal community composition showed some divergence not only among the different habitat types, but also among deadwood diameter fractions. Synthesis and applications: In order to maintain biodiversity at both local and regional scales, conserving threatened natural habitat types and managing traditional landscapes is essential. Man-made secondary woody habitats could provide the necessary resources and serve as surrogate habitats for many broadleaved deadwood-associated species, and thus complement the existing conservation network of natural forests.peerReviewe

Major wood-decay fungal groups have distinct occurrence patterns on woody substrates

Abstract Conservation of wood-inhabiting fungi requires sufficient knowledge of their occurrences on woody substrates. We studied and compared two major fungal wood-decay fungi groups (polypores and corticioids) on dead wood. Eight fungal or substrate groups were separated in the analyses. In total, 6,102 dead wood units were surveyed, and 5,682 occurrences of 302 fungal species were recorded. Our analyses included also empty dead wood units, which is rather rare in quantitative ecological studies of dead wood species. In general, the occurrence of fungal species did not exactly follow the availability of dead wood substrates, indicating high importance of substrate quality on species. Furthermore, polypores and corticioids differed from each other in their substrate occurrence patterns. The largest differences were found in diameter classes, corticioids occurring more often on small dead wood units. Our findings emphasize the importance of maintaining the variation in dead wood quality when preserving the diversity of wood-inhabiting fungi