5 research outputs found
Xsonify sonification tool for space physics
No full textPresented at the 12th International Conference on Auditory Display (ICAD), London, UK, June 20-23, 2006.Presented at the 12th International Conference on Auditory Display (ICAD), London, UK, June 20-23, 2006.xSonify is a concentrated project to extend the space physics data capabilities of the NASA Space Physics Data Facility (SPDF) [1] for use by visually-impaired students and researchers, by developing a sonification data analysis tool using the JavaSound API and accessing data locally or via web services. xSonify is an open-source publicly-available Java application and can be easily installed (using WebStart) and run on most platforms. With sonification, a large fraction of the space physics data collection is opened to a completely new and now excluded audience (both professional and public). Besides meeting a compelling need for a more effective non-visual approach to displaying science data, this extends SPDF's goals of improving access to space physics data and helps achieve NASA's goals of diversity and public outreach. Wanda Diaz Merced, a visually-impaired astrophysicist from Puerto Rico, is instrumental in advising on and testing the tool. Anton Schertenleib is the initial developer, as part of his graduate student thesis effort. We seek to further develop this tool with greater capabilities for rendering these data, improve its functional interface and allow for a wider variety of file input formats. Completion of this tool will open up the SPDF space physics data collection to a new community of researchers and students now excluded from space physics research. Development and evaluation will be guided by a user group of space scientists (sighted and visually-impaired) and experts in adaptive technologies from the National Federation of the Blind (NFB)
Sound for the exploration of space physics data
No full textCurrent analysis techniques for space physics 2D numerical data are based on scruti-nising the data with the eyes. Space physics data sets acquired from the natural lab of the interstellar medium may contain events that may be masked by noise making it difficult to identify. This thesis presents research on the use of sound as an adjunct to current data visualisation techniques to explore, analyse and augment signatures in space physics data. This research presents a new sonification technique to decom-pose a space physics data set into different components (frequency, oscillatory modes, etc…) of interest, and its use as an adjunct to data visualisation to explore and analyse space science data sets which are characterised by non-linearity (a system which does not satisfy the superposition principle, or whose output is not propor-tional to its input). Integrating aspects of multisensory perceptualization, human at tention mechanisms, the question addressed by this dissertation is:
Does sound used as an adjunct to current data visualisation, augment the perception of signatures in space physics data masked by noise?
To answer this question, the following additional questions had to be answered:
a) Is sound used as an adjunct to visualisation effective in increasing sensi-tivity to signals occurring at attended, unattended, unexpected locations, extended in space, when the occurrence of the signal is in presence of a dynamically changing competing cognitive load (noise), that makes the signal visually ambiguous?
b) How can multimodal perceptualization (sound as an adjunct to visualisa-tion) and attention control mechanisms, be combined to help allocate at-tention to identify visually ambiguous signals?
One aim of these questions is to investigate the effectiveness of the use of sound to-gether with visual display to increase sensitivity to signal detection in presence of visual noise in the data as compared to visual display only. Radio, particle, wave and high energy data is explored using a sonification technique developed as part of this research.
The sonification technique developed as part of this research, its application and re-sults are numerically validated and presented. This thesis presents the results of three experiments and results of a training experiment. In all the 4 experiments, the volun-teers were using sound as an adjunct to data visualisation to identify changes in graphical visual and audio representations and these results are compared with those of using audio rendering only and visual rendering only. In the first experiment audio rendering did not result in significant benefits when used alone or with a visual display.
With the second and third experiments, the audio as an adjunct to visual rendering became significant when a fourth cue was added to the spectra. The fourth cue con-sisted of a red line sweeping across the visual display at the rate the sound was played, to synchronise the audio and visual present. The results prove that a third congruent multimodal stimulus in synchrony with the sound helps space scientists identify events masked by noise in 2D data. Results of training experiments are reported
Brachinus fidelis LeConte
No full textBrachinus fidelis LeConte Brachinus fidelis LeConte, 1862: 524. Brachinus lecontei Motschulsky, 1859: 139. (Primary homonym of B. lecontei LeConte, 1844:49.) In 1859, Motschulsky described B. lecontei from California, but it was a primary homonym of B. lecontei LeConte, 1844, from the southern United States. According to LeConte (1862) B. lecontei LeC. is a synonym of B. perplexus Dejean. Motschulsky's name B. lecontei must also be rejected, on the grounds that it was, when proposed, a primary homonym. LeConte, in 1862, described B. fidelis, from California, as a species distinct from B. lecontei Mots. During the course of this research the author sent identical specimens of Brachinus from Del Puerto Creek, California, to both A. G. Ponomarenko and P. J. Darlington with requests that several characters be critically compared with those of the type specimens at the University of Moscow Museum and the Museum of Comparative Zoology. As a result of these comparisons, it was determined that the Del Puerto Creek specimens are identical both with Motschulsky's two type specimens of B. lecontei (in Moscow) and with LeConte's eleven type specimens of B. fidelis (in the Museum of Comparative Zoology). Accordingly, B. fidelis LeC. is a synonym of B. lecontei Mots. Because B. lecontei Motsch. is invalid, the first available valid name is B. fidelis LeConte 1862. (B. lecontei Dejean [1837: 14] must be considered a nomen nudum.) TYPE LOCALITY: B. fidelis: "Kern" is handwritten on the label of LeConte's first specimen. A gold disc represents the state of California on all of LeConte's types of this species. B. lecontei: "California" is cited in Motschulsky's description, but his cotypes are labelled B. latipennis lecontei Motsch., California. TYPE SPECIMENS: Two cotypes of B. lecontei Mots. are in the Motschulsky collection at the University of Moscow. Eleven specimens are in LeConte's series of B. fidelis LeC. at the Museum of Comparative Zoology. The first specimen in this latter series is designated as type number 5852. The last specimen in the series is labelled "Or." DISTRIBUTION: This species, as far as is known, is confined to California, Arizona, and Mexico, occurring sympatrically with B. costipennis. It is one of the three species occurring on Santa Cruz Island, 20 miles off the coast of Santa Barbara County in southern California (fig. 14). DESCRIPTION: Size. Length 7 to 9 mm.; width 4.5 to 4.6 mm. Coloration. Elytra of both sexes dark blue with blue epipleura; head and pronotum ferrugineus; mandibles dark red-brown to piceous at tips and along mesal edges; antennal segments 3-5 black or banded black; segments 6-11 dusky to brown; mesepisterna and sides of abdominal sterna black (venter may vary from dark ferrugineus to dark brown). Head. Labrum entire; dorsal surface of the mentum convex at middle with a setae at each anterior corner; bead around eyes entire joining with ridge over antennal base; furrows on frons shallow, finely rugose usually in form of a "V"; numerous setae arise behind eyes and a few from top of head; microscultpure consists of fine isodiametric meshes. Pronotum. Widest just behind anterior angles well in front of middle; anterior angles prominent and rounded; posterior angles prominent and acute; with lateral margins narrowly reflexed and narrowly beaded with a dark reddish-brown color; disc convex to flat, slightly rugose at center and at most a few setiferous punctures occurring in apical and basal transverse impressions; anterior transverse impression reduced to almost a triangular fovea; microsculpture consists of small isodiametric meshes. Elytra. Male elytra truncate, widest at apical third narrowing toward rounded humeri which are not prominent; deeply costate; microsculpture consists of fine isodiametric meshes; pubescent band confined anteriorly to 7th and 8th intervals, but broadened gradually and covering entire elytra beyond apical third. Female elytra similar, but proportionately wider than those of male in apical half. Aedeagus (fig. 5). Phallus cylindrical, ending in a rounded point; a median ridge occurs on dorsal surface at apex; microsculpture lacking. Endophallus bears a poorly pigmented virga consisting of two lateral plates. CALIFORNIA LOCALITY RECORDS: 894 specimens were examined. Alameda County: (Niles Canyon) ATM, (San Leandro) UIM, (Oakland Hills) CAS, (Livermore) CAS; Amador County: (5 miles west oi Sutter Creek) TLE; Colusa County: (Hwy. 20 and 16) ATM, (Rumsey Canyon) ATM; El Dorado County: ("El Dorado County") CAS; Fresno County: (La Ferre Creek) CAS; Imperial County: (Calpatria) CAS; Inyo County: (Little Lake) CAS, (Owens Lake) CAS, (Westgard Pass Plateau) CAS, (Olancha) CAS, (Deep Springs Lake) CAS, (Big Pine) CAS, (Independence) CAS, (Freeman) CAS, (Lone Pine) CAS, (Diaz Lake) CAS; Glenn County: (Elk Creek) CAS; Los Angeles County: (Alhambra) CAS, (Frenchman Flat) CAS, (Arroyo Seco Canyon) VVB, (San Dimas) CAS, (Pasadena) CAS, (Los Angeles) CAS, (Big Dalton Dam) ATM; Madera County: (O'Neals) ATM, (Coarsegold) CAS; Mariposa County: (Mariposa) CAS; Merced County: (Merced) CAS; Monterey County: (Stone Canyon) CAS, (3 miles S. E. of Jolon) CAS, (Jolon) CAS; Napa County: (Monticello) ATM; Orange County: (Laguna Beach) CAS, (Black Star Canyon) ATM; Placer County: ("Placer County") CAS; Riverside County: (Colton CAS, (Hemet) VVB, (Riverside) CAS, (Palm Canyon) CAS, (San Jacinto Mts.) CAS, (Palm Springs) CAS; San Benito County: (Panoche Valley) CAS; San Luis Obispo County: (Cambria) CAS, (San Luis Obispo) CAS, (Santa Margarita) CAS, (Atascadero) CAS; San Diego County: (Mt. Palomar) CAS, (Carrizo) UIM, (Guatay) UIM, (San Juan Capistrano) UIM, (Poway) CAS, (3 miles south of Dehesa) TLE, (Jacumba) CAS, (Sweetwater River) RES, (Chicken Creek) CAS, (Knaus) CAS, (9 miles east of Pine Valley) ATM, (Mission Valley) ATM; San Joaquin County: (Corral Hollow) TLE; San Bernadino County: (Cajon Pass) ATM; Santa Barbara County: (Gaviota) CAS, (Cuyama River) CAS, (Santa Ynez River, San Lucas) CAS, (Canada del Venadeto) ATM, (Bluff Camp, San Rafael Mts.) ATM; Santa Cruz Island: (Santa Cruz Island) CAS; Santa Cruz County: (Santa Cruz) CAS; Santa Clara County: (Gilroy Hot Springs) TLE, (Pacheco Pass) UIM, (Uvas Creek) TLE, (Alum Rock Park) CAS, (Arroyo Bayo) JGE; Stanislaus County: (Del Puerto Creek) TLE, (Del Puerto Canyon) UIM; Tehama County: ("hills west of Tehama County") CAS; Tulare County: (Kaweah) CAS; Ventura County: (Santa Paula) CAS ATM, (Wheeler Hot Springs) CAS, (Ventura) CAS, (Fillmore) CAS, (Foster Park) ATM; Yolo County: (Putah Canyon) ATM, (Davis) ATM, (Putah Creek) TLE. DISCUSSION: This is the most common species of Brachinus in California. It is easily recognized by the darkened 3rd and 4th antennal segments, together with the dark mesepisterna and abdominal sides.Published as part of Erwin, Terry L., 1965, A Revision Of Brachinus Of North America: Part I. The California Species (Coleoptera: Carabidae), pp. 1-19 in The Coleopterists Bulletin 19 (1) on pages 9-11, DOI: 10.5281/zenodo.382888
Afectación en el autoconcepto físico por estereotipos de belleza propuestos en las redes sociales en estudiantes universitarios de la ciudad de Me
No full textEsta investigación, tiene como finalidad identificar si existe afectación en el autoconcepto físico por los estereotipos establecidos en redes sociales, en jóvenes universitarios de la ciudad de Medellín. La muestra estuvo compuesta por hombres y mujeres entre los 18 y 30 años, participaron un total de 417 personas, de estos el 72.4 % mujeres y el 26.9% hombres. Esta investigación es no experimental con un enfoque empírico analítico, los datos se tomaron a través de un cuestionario sociocultural de autoconcepto físico llamado CIAF y una escala de medición de dependencia a las redes sociales, llamada ERA-RSI, posteriormente fueron analizados estadísticamente con el software IBM SPSS Statistics versión 26. Los resultados arrojaron que los encuestados presentan un grado de afectación leve respecto al autoconcepto físico que en la mayoría de veces se ve afectado por los tópicos de belleza en redes sociales, sin embargo, mostraron que todos los encuestados presentan incidencia frente al autoconcepto físico, haciendo énfasis que entre mayor insatisfacción con el autoconcepto físico mayor es la dependencia a las redes sociales.PregradoProfesional en Psicologí
