125 research outputs found
Differential gaze behavior towards sexually preferred and non-preferred human figures
The gaze pattern associated with image exploration is a sensitive index of our attention, motivation and preference. To examine whether an individual’s gaze behavior
can reflect his/her sexual interest, we compared gaze patterns of young heterosexual men and women (M = 19.94 years, SD = 1.05) while viewing photos of plain-clothed male and female figures aged from birth to sixty years old. Our analysis revealed a clear gender difference in viewing sexually preferred figure images. Men displayed a distinctive gaze pattern only when viewing twenty-year-old female images, with more fixations and longer viewing time dedicated to the upper body and waist-hip region. Women also
directed more attention at the upper body on female images in comparison to male images, but this difference was not age-specific. Analysis of local image salience revealed that observers’ eye-scanning strategies could not be accounted for by low-level processes, such as analyzing local image contrast and structure, but were associated with
attractiveness judgments. The results suggest that the difference in cognitive processing of sexually preferred and non-preferred figures can be manifested in gaze patterns
associated with figure viewing. Thus, eye-tracking holds promise as a potential sensitive measure for sexual preference, particularly in men
The g-factor of the 21/2 state in Nb
The Y(, 2n)Nb reaction was used to populate excited states in Nb. The rotation of the angular distribution of the 357 keV gamma-transition from the 21/2 state was measured in an external magnetic field. The IPAD method was used. By applying =(1.33 0.14) ns for the lifetime of the 21/2 state at 3467 keV, the value of the g-factor 1.18 0.18 was derived
Serious Games Application for Memory Training Using Egocentric Images
Mild cognitive impairment is the early stage of several neurodegenerative
diseases, such as Alzheimer's. In this work, we address the use of lifelogging
as a tool to obtain pictures from a patient's daily life from an egocentric
point of view. We propose to use them in combination with serious games as a
way to provide a non-pharmacological treatment to improve their quality of
life. To do so, we introduce a novel computer vision technique that classifies
rich and non rich egocentric images and uses them in serious games. We present
results over a dataset composed by 10,997 images, recorded by 7 different
users, achieving 79% of F1-score. Our model presents the first method used for
automatic egocentric images selection applicable to serious games.Comment: 11 page
Consideraciones sobre la enseñanza de la matemática en el ciclo diversificado colombiano
El documento comienza con un breve análisis del ciclo diversificado en Colombia. Los autores proponen y discuten algunos temas matemáticos sobre lĂłgica y teorĂa de conjuntos, computaciĂłn, cálculo, probabilidad y estadĂsticas que deberĂan tratarse en dicho nivel educativo
Evaluation of Single-Chip, Real-Time Tomographic Data Processing on FPGA - SoC Devices
A novel approach to tomographic data processing has been developed and
evaluated using the Jagiellonian PET (J-PET) scanner as an example. We propose
a system in which there is no need for powerful, local to the scanner
processing facility, capable to reconstruct images on the fly. Instead we
introduce a Field Programmable Gate Array (FPGA) System-on-Chip (SoC) platform
connected directly to data streams coming from the scanner, which can perform
event building, filtering, coincidence search and Region-Of-Response (ROR)
reconstruction by the programmable logic and visualization by the integrated
processors. The platform significantly reduces data volume converting raw data
to a list-mode representation, while generating visualization on the fly.Comment: IEEE Transactions on Medical Imaging, 17 May 201
A business model perspective for ICTs in public engagement
This is the post-print version of the Article. The official published article can be accessed from the link below - Copyright @ 2012 ElsevierPublic institutions, in their efforts to promote meaningful citizen engagement, are increasingly looking at the democratic potential of Information and Communication Technologies (ICTs). Previous studies suggest that such initiatives seem to be impeded by socio-technical integration barriers such as low sustainability, poor citizen acceptance, coordination difficulties, lack of understanding and failure to assess their impact. Motivated by these shortcomings, the paper develops and applies a business model perspective as an interceding framework for analysis and evaluation. The underlying principle behind this approach is that it is not technology per se which determines success, but rather the way in which the businessmodel of the technological artifact is configured and employed to achieve the strategic goals. The business model perspective is empirically demonstrated with the case of an online petitioning system implemented by a UK local authority. The case illustrates the importance of considering ICTs in public engagement from a holistic view to make them more manageable and assessable
Gaze patterns to child figures reflect deviant sexual preference in child sex offenders: a first glance
Research on non-offending heterosexual participants has indicated that men’s gaze
allocation reflects their sexual preference. In this exploratory pilot study we investigated whether
naturalistic gaze behaviour is sensitive to deviant sexual preferences. We compared gaze patterns
of convicted heterosexual child sex offenders (CSOs; n = 13) with female victims to heterosexual
non-offending men (n = 13) in a task of free-viewing images of clothed male and female figures aged
10, 20 and 40 years. CSOs dedicated more fixations to the upper body of the female child than male
child figures. The pattern was different for the control sample, whose gaze pattern to male and female
figures could only be differentiated when viewing adult figures. CSOs showed significantly greater
difference in their gaze towards the upper body of male and female children than non-offenders. Our
findings provide preliminary evidence for eye-tracking as a potential method of assessing deviant
sexual interest
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ER stress transcription factor Xbp1 suppresses intestinal tumorigenesis and directs intestinal stem cells
Unresolved endoplasmic reticulum (ER) stress in the epithelium can provoke intestinal inflammation. Hypomorphic variants of ER stress response mediators, such as X-box–binding protein 1 (XBP1), confer genetic risk for inflammatory bowel disease. We report here that hypomorphic Xbp1 function instructs a multilayered regenerative response in the intestinal epithelium. This is characterized by intestinal stem cell (ISC) expansion as shown by an inositol-requiring enzyme 1α (Ire1α)–mediated increase in Lgr5+ and Olfm4+ ISCs and a Stat3-dependent increase in the proliferative output of transit-amplifying cells. These consequences of hypomorphic Xbp1 function are associated with an increased propensity to develop colitis-associated and spontaneous adenomatous polyposis coli (APC)–related tumors of the intestinal epithelium, which in the latter case is shown to be dependent on Ire1α. This study reveals an unexpected role for Xbp1 in suppressing tumor formation through restraint of a pathway that involves an Ire1α- and Stat3-mediated regenerative response of the epithelium as a consequence of ER stress. As such, Xbp1 in the intestinal epithelium not only regulates local inflammation but at the same time also determines the propensity of the epithelium to develop tumors
Prior Bordetella pertussis infection modulates allergen priming and the severity of airway pathology in a murine model of allergic asthma
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