An Acoustic Study of Sandhi Vowel Hiatus in Luganda

2019 ◽  
Vol 63 (3) ◽  
pp. 506-525
Author(s):  
Scott Myers

In Luganda (Bantu, Uganda), a sequence of vowels in successive syllables (V.V) is not allowed. If the first vowel is high, the two vowels are joined together in a diphthong (e.g., i + a → i͜a). If the first vowel is non-high, it is deleted with compensatory lengthening of the second vowel in the sequence (e.g., e + a → aː). This paper presents an acoustic investigation of inter-word V#V sequences in Luganda. It was found that the vowel interval in V#V sequences is longer than that in V#C sequences. When the first vowel in V#V is non-high, the formant frequency of the outcome is determined by the second vowel in the sequence. When the first vowel is high, on the other hand, the sequence is realized as a diphthong, with the transition between the two formant patterns taking up most of the duration. The durational patterns within these diphthongs provide evidence against the transcription-based claim that these sequences are reorganized so that the length lies in the second vowel (/i#V/ → [jVː]). The findings bring into question a canonical case of compensatory lengthening conditioned by glide formation.

Author(s):  
Olga N. Morozova ◽  
◽  
Svetlana V. Androsova ◽  
Tatiana V. Kravets ◽  
Elena A. Protsukovich ◽  
...  

Considerable variability of the Evenki phonological system and its realization patterns as well as its endangered status determine the urgent need for considering paradigmatic and syntagmatic phonological differences among Evenki accents and between accents and standard Evenki. The current paper presents the results of an acoustic study of a-like accent forming in the Selemdzha accent. On the one hand, the obtained results clearly indicate consistent substitute of canonical /ɜː/ with open a-like sound. On the other hand, canonical /aː/ tokens demonstrated greater openness compared to the ones that replaced canonical /ɜː/. In addition, there was considerable across-speaker variation concerning the feature of advancement-retraction. No significant duration difference was discovered. Further study is necessary to find out if the obtained acoustic difference is perceptually relevant.


2007 ◽  
Vol 37 (2) ◽  
pp. 143-172 ◽  
Author(s):  
Daniel Recasens ◽  
Aina Espinosa

The present study is an electropalatographic and acoustic investigation of the fricatives /s, f/ and the affricates /ts, dz, tf, d[zcy ]/ based on data from five speakers of Majorcan Catalan and five speakers of Valencian Catalan. Results show that the articulatory characteristics of fricatives and affricates agree in several respects: the sounds traditionally labeled /f/ and /tf, d[zcy ]/ are alveolopalatal, and are articulated at a less anterior location, are less constricted and show more dorsopalatal contact than the alveolars /s/ and /ts, dz/; the two place categories are closer to each other in Valencian than in Majorcan. Compared to voiceless affricates, voiced affricates are more anterior and more constricted, and show less dorsopalatal contact. Data also show that closure location for /tf, d[zcy ]/ occurs at the alveolar zone, and that articulatory differences among affricates are better specified at frication than at closure. Strict homorganicity between the stop and frication components of affricates appears to hold provided that constriction location at frication is compared with place of articulation at closure offset. In comparison to voiceless affricates, voiced affricates were shorter, and exhibited a longer closure and a shorter frication period, in Majorcan; in Valencian, on the other hand, closures were shortest for /d[zcy ]/, and frication was systematically longer for voiceless vs. voiced affricates. These duration data appear to conform to a universal trend in Valencian but not in Majorcan where voiced affricates are lengthened intentionally. In both Catalan dialects, vowel duration varies inversely with the duration of the affricate and of its closure and frication components. The implications of these articulatory and duration characteristics for the interpretation of sound changes affecting affricates, i.e. place merging, lenition and devoicing, are discussed.


Phonology ◽  
1998 ◽  
Vol 15 (2) ◽  
pp. 121-141 ◽  
Author(s):  
Ioana Chitoran

Georgian, a South Caucasian language belonging to the Kartvelian family, is characterised by the ability of its consonants to combine in extensive clusters. Among the possible combinations are a series of two-member clusters which are argued to behave phonologically as single segments (Tschenkeli 1958, Vogt 1958, 1971, Aronson 1982, 1991, Deprez 1988 and others). They are known as ‘harmonic’ clusters, because the laryngeal quality is constant across the cluster. Its two members are both voiced ([dg bg dγ bγ]), both aspirated ([thkh tshkh thχ tshχ]) or both ejective ([t'k' ts'k' p'k' t'q' ts'q']). They can occur either word-initially or in word-medial position. Harmonic clusters do not contrast with identical sequences of segments, except for sequences formed at the junction of two words. There is no evidence that across word boundaries harmonic clusters are derived by some sort of restructuring.The purpose of the present study is to review the phonological arguments brought in the literature in favour of treating harmonic clusters as single segments, and to look for acoustic evidence that would motivate the distinction made between harmonic clusters behaving as single segments, on the one hand, and simple sequences of consonants, on the other hand. The study uses phonetic data to address the issue of phonological representation. If the difference between a harmonic cluster and a simple sequence of segments is present in the phonology, then it should ideally also be visible in the acoustic signal, for example in the presence or absence of a release burst, or in timing differences, as suggested by previous studies of complex vs. simple segments in various languages (Maddieson & Ladefoged 1989, Maddieson 1989, 1990). The results show that the treatment of Georgian harmonic clusters as complex segments is not supported by the acoustic data.The paper is organised as follows: § 2 presents the phonological behaviour of consonant clusters in Georgian, § 3 reviews phonetic evidence for complex segments, and spells out the predictions made by the present study. The acoustic study is described in § 4, followed by the presentation and discussion of results in § 5. The conclusions and areas for further study are presented in § 6.


1999 ◽  
Vol 173 ◽  
pp. 249-254
Author(s):  
A.M. Silva ◽  
R.D. Miró

AbstractWe have developed a model for theH2OandOHevolution in a comet outburst, assuming that together with the gas, a distribution of icy grains is ejected. With an initial mass of icy grains of 108kg released, theH2OandOHproductions are increased up to a factor two, and the growth curves change drastically in the first two days. The model is applied to eruptions detected in theOHradio monitorings and fits well with the slow variations in the flux. On the other hand, several events of short duration appear, consisting of a sudden rise ofOHflux, followed by a sudden decay on the second day. These apparent short bursts are frequently found as precursors of a more durable eruption. We suggest that both of them are part of a unique eruption, and that the sudden decay is due to collisions that de-excite theOHmaser, when it reaches the Cometopause region located at 1.35 × 105kmfrom the nucleus.


Author(s):  
A. V. Crewe

We have become accustomed to differentiating between the scanning microscope and the conventional transmission microscope according to the resolving power which the two instruments offer. The conventional microscope is capable of a point resolution of a few angstroms and line resolutions of periodic objects of about 1Å. On the other hand, the scanning microscope, in its normal form, is not ordinarily capable of a point resolution better than 100Å. Upon examining reasons for the 100Å limitation, it becomes clear that this is based more on tradition than reason, and in particular, it is a condition imposed upon the microscope by adherence to thermal sources of electrons.


Author(s):  
K.H. Westmacott

Life beyond 1MeV – like life after 40 – is not too different unless one takes advantage of past experience and is receptive to new opportunities. At first glance, the returns on performing electron microscopy at voltages greater than 1MeV diminish rather rapidly as the curves which describe the well-known advantages of HVEM often tend towards saturation. However, in a country with a significant HVEM capability, a good case can be made for investing in instruments with a range of maximum accelerating voltages. In this regard, the 1.5MeV KRATOS HVEM being installed in Berkeley will complement the other 650KeV, 1MeV, and 1.2MeV instruments currently operating in the U.S. One other consideration suggests that 1.5MeV is an optimum voltage machine – Its additional advantages may be purchased for not much more than a 1MeV instrument. On the other hand, the 3MeV HVEM's which seem to be operated at 2MeV maximum, are much more expensive.


2005 ◽  
Vol 19 (3) ◽  
pp. 129-132 ◽  
Author(s):  
Reimer Kornmann

Summary: My comment is basically restricted to the situation in which less-able students find themselves and refers only to literature in German. From this point of view I am basically able to confirm Marsh's results. It must, however, be said that with less-able pupils the opposite effect can be found: Levels of self-esteem in these pupils are raised, at least temporarily, by separate instruction, academic performance however drops; combined instruction, on the other hand, leads to improved academic performance, while levels of self-esteem drop. Apparently, the positive self-image of less-able pupils who receive separate instruction does not bring about the potential enhancement of academic performance one might expect from high-ability pupils receiving separate instruction. To resolve the dilemma, it is proposed that individual progress in learning be accentuated, and that comparisons with others be dispensed with. This fosters a self-image that can in equal measure be realistic and optimistic.


Author(s):  
Stefan Krause ◽  
Markus Appel

Abstract. Two experiments examined the influence of stories on recipients’ self-perceptions. Extending prior theory and research, our focus was on assimilation effects (i.e., changes in self-perception in line with a protagonist’s traits) as well as on contrast effects (i.e., changes in self-perception in contrast to a protagonist’s traits). In Experiment 1 ( N = 113), implicit and explicit conscientiousness were assessed after participants read a story about either a diligent or a negligent student. Moderation analyses showed that highly transported participants and participants with lower counterarguing scores assimilate the depicted traits of a story protagonist, as indicated by explicit, self-reported conscientiousness ratings. Participants, who were more critical toward a story (i.e., higher counterarguing) and with a lower degree of transportation, showed contrast effects. In Experiment 2 ( N = 103), we manipulated transportation and counterarguing, but we could not identify an effect on participants’ self-ascribed level of conscientiousness. A mini meta-analysis across both experiments revealed significant positive overall associations between transportation and counterarguing on the one hand and story-consistent self-reported conscientiousness on the other hand.


2019 ◽  
Vol 50 (2) ◽  
pp. 80-93
Author(s):  
Jort de Vreeze ◽  
Christina Matschke

Abstract. Not all group memberships are self-chosen. The current research examines whether assignments to non-preferred groups influence our relationship with the group and our preference for information about the ingroup. It was expected and found that, when people are assigned to non-preferred groups, they perceive the group as different to the self, experience negative emotions about the assignment and in turn disidentify with the group. On the other hand, when people are assigned to preferred groups, they perceive the group as similar to the self, experience positive emotions about the assignment and in turn identify with the group. Finally, disidentification increases a preference for negative information about the ingroup.


1961 ◽  
Vol 6 (6) ◽  
pp. 222-223
Author(s):  
Edwin G. Boring
Keyword(s):  

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