1,721,004 research outputs found
Untersuchung der temporären Anpassung von Knochenleitungshörsystemen bei Kindern mit minimaler Schallleitungsschwerhörigkeit
No full textVergleichbarkeit des Mainzer Audimetric Test for Children (MATCH) mit dem Freiburger Sprachtest mit Zahlen und dem Mainzer Kindersprachtest 3 bei Kindern
No full textAuditory event-related potentials in post- and prelingually deaf cochlear implant recipients
No full textThe development of central auditory functions in cochlear implant (CI) patients was studied over six months of rehabilitation. Examinations were performed beginning with the first week after processor calibration, and in monthly follow-up sessions thereafter. The subjects were given a simple auditory perception task (detection of a 400 Hz and a 1450 Hz tone), as well as an oddball-paradigm (detection of one of the tones as a rare deviant). Auditory evoked potentials, reaction time and errors were recorded. Results from five patients, two postlingually deaf and three prelingually deaf CI recipients are shown. Generally, in the auditory evoked potentials of patients a shortening of N100 latency towards those of subjects with normal hearing was seen from month to month. However, in the prelingually deaf patients this effect was weaker and more variable over time. Three CI recipients showed a P300 component in the oddball-paradigm in correlation with their performance. Two prelingually deaf patients failed to show a P300 in the oddball-paradigm. For both components, the N100 and the P300 we found a larger spreading over the skull in the patients compared to a normal hearing person. The results show that from the very first days after initial processor fitting prelingually and postlingually deaf CI recipients may show cortical correlates of stimulus processing and discrimination. For some components of the auditory evoked potentials an initial temporal change but a maintained larger spreading over the skull was seen
Intraspecific allometric comparison of laboratory gerbils with Mongolian gerbils trapped in the wild indicates domestication in Meriones unguiculatus (Milne-Edwards, 1867) (Rodentia : Gerbillinae)
No full textA survey of adult male Mongolian gerbils, Meriones unguiculatus (Milne-Edwards, 1867), either trapped during an expedition in Mongolia near 47 degreesN and 105,5 degreesE in June 1995 (WILD) or obtained from a laboratory strain bred in captivity since 1935 (LAB), revealed significant morphological and behavioural differences, which are likely a result of domestication in the laboratory strain. Mean body length (125.4 mm), tail length (95.5 mm) and body weight (53.6 g) was lower in WILD, although no other external characteristics were obviously different. Related allometrically to net carcass weight, organ weights were significantly lower (p < 0.01) in LAB (brain - 17.6%, eyes - 26.0%, heart - 22.3%, lungs - 43.3%). Seizures frequently seen in LAB were absent in WILD trapped (n = 167) or subsequently housed in Germany (n = 8 1), and rare in their offspring. Mean litter size was greater in LAB (n = 5.5) than in WILD bred in the laboratory (n = 4.4). The WILD breeding strain was named Ugoe:MU95. A genetic bottleneck (n = 9) that occurred in 1954 and remarkably smaller brains in LAB indicate that the laboratory strain has become domesticated and should be designated as "Laboratory gerbils" (M. unguiculatus forma domestica) to signify this new case of domestication among rodents
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Vorschläge zur gemeinsamen Test-Retest-Darstellung von unterschiedlichen Lokalisationsexperimenten
No full textFähigkeit des Richtungshörens bei Kindern mit Auditiver Verarbeitungs- und Wahrnehmungsstörung
No full textHintergrund: Bisher gibt es kaum einheitliche Messabläufe zur Überprüfung der Fähigkeit der Richtungslokalisation bei Kindern mit auditiver Verarbeitungs- und Wahrnehmungsstörung (AVWS). Laut Leitlinie (2015) soll dies jedoch immer während einer AVWS-Diagnostik erfolgen. Häufig wird hierfür der Mainzer Kindertisch mit fünf sichtbaren Lautsprechern verwendet. Dadurch ist eine Winkelauflösung von nur 45° gegeben, so dass die Detektion häufig bei 100% liegt und kaum Auffälligkeiten aufweist. Dies gab den Anlass, das Richtungshörvermögen von Kindern, welche sich einer AVWS-Diagnostik unterziehen, genauer zu betrachten.Material und Methoden: Bisher wurden 73 Kinder und Jugendliche (Alter: 5-16 Jahre, Median: 9,2 Jahre, 34 (FEMALE), 39 (MALE)), die mit der Verdachtsdiagnose AVWS zur weiterführenden Diagnostik vorgestellt wurden, in die Studie eingeschlossen. In 17 Fällen wurde eine AVWS diagnostiziert. Bei 5 Kindern im auditiven (29%) und bei 12 Kindern im auditiv-sprachlichen Bereich (71%). Pathologisch dabei waren das dichotische Hören (DTU/DTF), Hören im Störgeräusch (OLKiSA/OLSA), Hörgedächtnis (K-ABC/Mottier) und die Phonemdifferenzierung (HVS/H-LAD).Getestet wurde das Richtungshören mit dem ERKI-Setup, basierend auf dem Mainzer-Kindertisch. Abgefragt wurden insgesamt 13 Schallquellen (fünf reale, acht virtuelle, erzeugt durch Lautsprecherpegeldifferenzen, Winkelauflösung 15° im Bereich ±90°, dreimalige Wiederholung). Als Stimulus diente Rosa Rauschen (Länge 300ms, 65dB SPL, Pegelroving ±5dB).Ergebnisse: Einem Großteil der Kinder fiel die Geräuschlokalisation schwer. Eine nahezu fehlerfreie Lokalisationsfähigkeit wiesen nur 36,5% der Kinder auf. Darunter vier Kinder mit diagnostizierter AVWS. Besonders auffällig waren zwei wiederkehrende Muster, die unter allen 73 Kindern auftraten. 20,5% der Kinder zeigte eine Lokalisation der lateralen sowie der frontalen Darbietungen (0°, ±45°) und 23% der Kinder war es nur möglich, alle realen Lautsprecher zu lokalisieren (0°, ±45°, ±90°).Diskussion: Auf eine höhere Winkelauflösung wurde aufgrund der zeitintensiven AVWS-Diagnostik beim ersten Besuch verzichtet. Eine Kontrollmessung mit einer Winkelauflösung von 5° wird momentan mit allen Kindern an einem zweiten separaten Termin durchgeführt.Fazit: Diese Studie zeigt, dass die Richtungslokalisationsüberprüfung bei Kindern mit der Verdachtsdiagnose AVWS mittels hoher Winkelauflösung sinnvoll ist. Mögliche Zusammenhänge zwischen diagnostizierten AVWS-Merkmalen und auffälligen Lokalisationsmustern müssen genauer untersucht werden
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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