نتایج جستجو برای: trill
تعداد نتایج: 208 فیلتر نتایج به سال:
Electroglottographic and acoustic data for Catalan three-consonant clusters composed of a wordand syllable-final C1C2 sequence and an underlyingly voiced C3 in wordand syllable-initial position were collected in order to verify whether a regressive voicing assimilation process operates on all obstruents placed at the C2 and C1 sites. Data reveal the presence of low percentages of vocal fold vib...
Closely related species of songbirds often show large differences in song syntax, suggesting that major innovations in syntax must sometimes arise and spread. Here we examine the response of male and female swamp sparrows, Melospiza georgiana, to an innovation in song syntax produced by males of this species. Young male swamp sparrows that have been exposed to tutor songs with experimentally in...
The production of trills requires precise articulatory and aerodynamic settings, which appear to be hardly compatible with secondary palatalization – the raising and fronting of the tongue body. Yet, the precise reasons for this incompatibility are still poorly understood, largely given the paucity of articulatory work on trills. Moreover, previous investigations of palatalized trills have been...
Objectives: The present research aims to study the normal development of Percentage of Consonant Correct (PCC) in Kurdish-speaking children, with Middle Kurmanji-Mukryani Dialect as an Articulation Competency Index (ACI). PCC was examined in terms of the manner of articulation and position of sound in the word. Methods: In this descriptoanalytical cross-sectional study, 120 Kurdish-speak...
Background and methods We report a case of a giant malignant hemangiopericytoma in the left neck and involving and growing in left internal jugular, left subclvian, left brachiocephalic vein, superior vena cava (SVC) and occupying part of the right atrium. Tumor was causing severe dyspnea, dysphagia and initial SVC syndrome. A 77-year-old male was admitted to our hospital due to progressive dys...
Acoustic signals used by males to attract females are among the most prominent examples of secondary sexual traits, yet we have only limited understanding of their genetic architecture. Male crickets produce a calling song to attract females and then switch to a courtship song that incites mounting by females once they are at close range. Although we know much about the genetics of cricket call...
Males can produce complex sexual signals, often in different sensory modalities. The information conveyed by multiple signals, and the degree to which multiple signals interact in influencing female mating decisions, is not well understood. Male crickets produce 2 signals during courtship, an acoustic signal or courtship song, and a contact olfactory signal in the form of a blend of hydrocarbon...
Nous rapportons une patiente âgée de 46 ans qui présentait depuis la naissance une macule angiomateuse au niveau de l'occiput. A l'âge de 30 ans la lésion a augmenté de volume progressivement au cours des grossesses itératives devenant nodulaire battante et saignant au moindre traumatisme avec plusieurs épisodes de surinfection et épisodes hémorragiques ayant causé une fois un état de choc vaga...
This paper investigates on the basis of Romanian EMA dat timing of liquid onset and coda clusters. American English /l/-o differently from obstruent–obstruent clusters. This has bee articulatory timing relations. However, German codas showe doubt on the previously proposed perceptual account. Rathe determines the contrasting patterns between languages. Rom alveolar trill, allowing us to probe f...
Multi-component signals contain multiple signal parts expressed in the same physical modality. One way to identify individual components is if they are produced by different physical mechanisms. Here, I studied the mechanisms generating acoustic signals in the courtship displays of the Calliope hummingbird Stellula calliope. Display dives consisted of three synchronized sound elements, a high-f...
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