4,802 research outputs found
One thousand good things in Nature: aspects of nearby Nature associated with improved connection to Nature
As our interactions with nature occur increasingly within urban landscapes, there is a need to consider how âmundane natureâ can be valued as a route for people to connect to nature. The content of a three good things in nature intervention, written by 65 participants each day for five days is analysed. Content analysis produced themes related to sensations, temporal change, active wildlife, beauty, weather, colour, good feelings and specific aspects of nature. The themes describe the everyday good things in nature, providing direction for those seeking to frame engaging conservation messages, plan urban spaces and connect people with nearby nature
Biofilm-forming capability of highly virulent, multidrug-resistant Candida auris
The emerging multidrug-resistant yeast pathogen Candida auris has attracted considerable attention as a source of healthcareâassociated infections. We report that this highly virulent yeast has the capacity to form antifungal resistant biofilms sensitive to the disinfectant chlorhexidine in vitro
Conversational Agents, Conversational Relevance, and Disclosure: Comparing the Effectiveness of Chatbots and SVITs in Eliciting Sensitive Information
Conversational agents (CAs) in various forms are used in a variety of information systems. An abundance of prior research has focused on evaluating the various traits that make CAs effective. Most studies assume, however, that increasing the anthropomorphism of an agent will improve its performance. In a sensitive information disclosure task, that may not always be the case. We leverage self disclosure, social desirability, and social presence theories to predict how differing modes of conversational agents affect information disclosure. In this paper, we propose a laboratory experiment to compare how the mode of a given CA text based chatbot or voice based smart speaker paired with either high or low levels of conversational relevance, affects the disclosure of personally sensitive information. In addition to understanding influences on disclosure, we aim to break down the mechanisms through which CA design influences disclosure
The Halo Occupation Distribution of X-ray-Bright Active Galactic Nuclei: A Comparison with Luminous Quasars
We perform halo occupation distribution (HOD) modeling of the projected
two-point correlation function (2PCF) of high-redshift (z~1.2) X-ray-bright
active galactic nuclei (AGN) in the XMM-COSMOS field measured by Allevato et
al. The HOD parameterization is based on low-luminosity AGN in cosmological
simulations. At the median redshift of z~1.2, we derive a median mass of
(1.02+0.21/-0.23)x10^{13} Msun/h for halos hosting central AGN and an upper
limit of ~10% on the AGN satellite fraction. Our modeling results indicate (at
the 2.5-sigma level) that X-ray AGN reside in more massive halos compared to
more bolometrically luminous, optically-selected quasars at similar redshift.
The modeling also yields constraints on the duty cycle of the X-ray AGN, and we
find that at z~1.2 the average duration of the X-ray AGN phase is two orders of
magnitude longer than that of the quasar phase. Our inferred mean occupation
function of X-ray AGN is similar to recent empirical measurements with a group
catalog and suggests that AGN halo occupancy increases with increasing halo
mass. We project the XMM-COSMOS 2PCF measurements to forecast the required
survey parameters needed in future AGN clustering studies to enable higher
precision HOD constraints and determinations of key physical parameters like
the satellite fraction and duty cycle. We find that N^{2}/A~5x10^{6} deg^{-2}
(with N the number of AGN in a survey area of A deg^{2}) is sufficient to
constrain the HOD parameters at the 10% level, which is easily achievable by
upcoming and proposed X-ray surveys.Comment: 11 pages, 4 figures, accepted in Ap
Delivering Bio-Mems & Microfluidic Education Around Accessible Technologies
Electronic Systems are now being deployed in al-most all aspects of daily life as opposed to being confined to consumer electronics, computing, communication and control applications as was the case in the 90âs. One of the more significant growth areas is medical instrumentation, health care, bio-chemical analysis and environmental monitoring. Most of these applications will in the future require the integration of fluidics and biology within complex electronic systems. We are now seeing technologies emerging together with access services such as the FP6 âINTEGRAMplusâ and âMicroBuilderâ programs that offer competitive solutions for companies wishing to de-sign and prototype microfluidic systems. For successful deployment of these systems, a new breed of electronic engineers are needed that understand how to deliver bio-chemistry and living cells to transducers and integrate the required technologies reliably into robust systems. This paper will report on initial training initiatives now active under the INTEGRAMplus program
Excavation of an Arctic Fox, Alopex lagopus, den by a Polar Bear, Ursus maritimus
We observed a Polar Bear (Ursus maritimus) excavating an Arctic Fox (Alopex lagopus) den on 24 June 1998, 3 km inland from the Hudson Bay coast (58°40'N, 93°12'W), near Cape Churchill in Wapusk National Park, Manitoba. To our knowledge this is the first observed excavation of an Arctic Fox den by a Polar Bear
Observations of Polar Bear Predatory Behaviour toward Caribou
A polar bear (Ursus maritimus) was observed unsuccessfully stalking and chasing caribou (Rangifer tarandus) in western Hudson Bay. Before chasing the caribou, the polar bear appeared to make use of wind direction and vegetation cover in order to move close to them. While there have been very few documented cases of the two species interacting, our observations indicate that polar bears will stalk and chase caribou.On a observé un ours polaire (Ursus maritimus) traquer et poursuivre sans succÚs le caribou (Rangifer tarandus) dans l'ouest de la baie d'Hudson. Avant de se lancer dans sa poursuite, l'ours polaire semblait s'aider de la direction du vent et du couvert végétal pour s'approcher des animaux. Bien que trÚs peu de cas d'interaction des deux espÚces aient été documentés, nos observations révÚlent qu'en réalité les ours polaires traquent et poursuivent le caribou
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