scholarly journals Linguistic Correlates of Acoustic Duration in English Triconstituent Compounds

2021 ◽  
Author(s):  
Annika Schebesta ◽  
Gero Kunter
Keyword(s):  
Acoustic Signal ◽  
Morphological Structure ◽  
Complex Interplay ◽  
Speech Corpus ◽  
Spoken English ◽  
Boston University ◽  
Morphological Unit ◽  
Left And Right ◽  
Lexical Factors

This paper investigates the effect of a range of variables on the acoustic duration of constituents in left- and right-branching NNN compounds derived from a corpus of spoken English (Boston University Radio Speech Corpus, \citealt{Ostendorf.1997}). Variables of interest include speaker-dependent as well as phonological, morphological and lexical factors. The analysis reveals that most variables affect constituent durations as expected, and only few predictors do not yield any effect on the acoustic signal. Furthermore, we detected a complex interplay of the morphological structure of NNN compounds and the two involved bigram frequencies. For instance, the duration of N2 in left-branching compounds is affected by the frequency of N2N3 even though these two constituents do not form a morphological unit in this type of NNN compound. This interplay may be interpreted as a way of resolving potential conflicts between the frequency of adjacent constituents and the morphological structure: In such an instance, speakers appear to use acoustic duration to signal the branching direction of the triconstituent compound.

Simultaneous recognition of words and prosody in the Boston University Radio Speech Corpus

2005 ◽  
Vol 46 (3-4) ◽  
pp. 418-439 ◽  
Author(s):  
Mark Hasegawa-Johnson ◽  
Ken Chen ◽  
Jennifer Cole ◽  
Sarah Borys ◽  
Sung-Suk Kim ◽  
...  
Keyword(s):  
Speech Corpus ◽  
Boston University

scholarly journals Investigating the Gap between L2 Grammar Textbooks and Authentic Speech: Corpus-Based Comparisons of Reported Speech

2015 ◽  
Vol 1 (1) ◽  
pp. 6-11
Author(s):  
Kevin Cancellaro
Keyword(s):  
Second Language ◽  
Second Language Acquisition ◽  
Real World ◽  
Corpus Linguistics ◽  
American English ◽  
Reported Speech ◽  
Speech Corpus ◽  
Spoken English ◽  
Inaccurate Information ◽  
L2 Learners

Corpus Linguistics (CL) has made significant inroads into the field of second language acquisition (SLA) and pedagogy. As more corpora have become available, researchers and teachers alike have begun to realize the importance of empirically testing ideas that have long been taken for granted and accepted as fact. This is especially true for grammar textbooks written for second language (L2) learners. Do the textbooks that are being used reflect real world grammatical usage? The current study is the first of two in which three corpora were used to examine real world usage of reported speech (RS) as compared to typical presentations of RS in popular L2 grammar U.S. textbooks as they existed in and up to the year 2007. Results show that indirect reported speech (IRS), direct reported speech (DRS) and alternative forms of RS constructions in combination are not only frequent in spoken English but also dependent on register and context. Further, simplifying RS explanations in terms of backshifing with the use of a past tense main reporting verb may be providing inaccurate information to L2 learners of American English. Results generally support, with some exceptions, the findings in previous studies which employed corpus-based analysis to study the relevance of EFL/ESL textbooks (Al-Wossabi, 2014; Barbieri & Eckhardt, 2007; Khojasteh &Shakrpour, 2014; Šegedin, 2008). A forthcoming study will examine new corpora and revised textbooks to measure the degree of change that has occurred since 2007, thereby seeking to replicate the results of a more general review on the same topic done by Khojasteh and Shakrpour (2014).

scholarly journals Morphological Effects of Heat Stress on Cattle Kidney

2018 ◽  
Vol 35 (02) ◽  
pp. 122-124 ◽  
Author(s):  
Murat Akosman ◽  
İsmail Türkmenoğlu ◽  
Aysun Demirkan ◽  
Vural Özdemir ◽  
Mehmet Akalan
Keyword(s):  
Heat Stress ◽  
Sampling Methods ◽  
Unit Area ◽  
Morphological Changes ◽  
Left Kidney ◽  
Morphological Structure ◽  
Structural Data ◽  
Morphometric Measurements ◽  
Left And Right ◽  
Water Overflow

Introduction Cattle kidney is an interesting organ because of its individual morphological structure and the mobility of the left kidney. The effects of heat stress on animal yield have been previously researched. However, no data could be obtained during the literature research about the effects of heat stress on the morphological structure of cattle kidneys. Materials and Methods In the present study, morphometric measurements were performed on the left and right kidneys of male and female Holstein cattle. The kidney samples were collected in the summer and winter seasons to assess the effects of heat stress. A scale, water overflow, and a Mitutoyo CDN-P20PMX caliper (Mitutoyo Corporation, Kanagawa, Japan) were used to obtain the morphological structural data of the total kidney, and stereological sampling methods with microscopy were performed to investigate the glomerulus density per unit area and the diameter of the glomerulus. Results Morphological changes on the kidneys were observed after the measurements. Conclusion It can be said that heat stress may cause morphologic changes on cattle kidneys.

scholarly journals On the physical origin of linguistic laws and lognormality in speech

2019 ◽  
Vol 6 (8) ◽  
pp. 191023 ◽  
Author(s):  
Iván G. Torre ◽  
Bartolo Luque ◽  
Lucas Lacasa ◽  
Christopher T. Kello ◽  
Antoni Hernández-Fernández
Keyword(s):  
Information Theory ◽  
Mathematical Formulation ◽  
Oral Communication ◽  
Physical Origin ◽  
Speech Corpus ◽  
Spoken English ◽  
Size Rank ◽  
Linguistic Units ◽  
Mathematical Derivation ◽  
Statistical Laws

Physical manifestations of linguistic units include sources of variability due to factors of speech production which are by definition excluded from counts of linguistic symbols. In this work, we examine whether linguistic laws hold with respect to the physical manifestations of linguistic units in spoken English. The data we analyse come from a phonetically transcribed database of acoustic recordings of spontaneous speech known as the Buckeye Speech corpus. First, we verify with unprecedented accuracy that acoustically transcribed durations of linguistic units at several scales comply with a lognormal distribution, and we quantitatively justify this ‘lognormality law’ using a stochastic generative model. Second, we explore the four classical linguistic laws (Zipf’s Law, Herdan’s Law, Brevity Law and Menzerath–Altmann’s Law (MAL)) in oral communication, both in physical units and in symbolic units measured in the speech transcriptions, and find that the validity of these laws is typically stronger when using physical units than in their symbolic counterpart. Additional results include (i) coining a Herdan’s Law in physical units, (ii) a precise mathematical formulation of Brevity Law, which we show to be connected to optimal compression principles in information theory and allows to formulate and validate yet another law which we call the size-rank law or (iii) a mathematical derivation of MAL which also highlights an additional regime where the law is inverted. Altogether, these results support the hypothesis that statistical laws in language have a physical origin.

Structural analysis of the surface-layer protein of spirillum serpens by high-resolution electron microscopy

1983 ◽  
Vol 41 ◽  
pp. 738-739
Author(s):  
W. H. Wu ◽  
R. M. Glaeser
Keyword(s):  
Electron Microscopy ◽  
Surface Layer ◽  
Structural Analysis ◽  
High Resolution ◽  
Low Dose ◽  
High Resolution Electron Microscopy ◽  
Optical Diffraction ◽  
Surface Layer Protein ◽  
Morphological Unit ◽  
Resolution Electron

Spirillum serpens possesses a surface layer protein which exhibits a regular hexagonal packing of the morphological subunits. A morphological model of the structure of the protein has been proposed at a resolution of about 25 Å, in which the morphological unit might be described as having the appearance of a flared-out, hollow cylinder with six ÅspokesÅ at the flared end. In order to understand the detailed association of the macromolecules, it is necessary to do a high resolution structural analysis. Large, single layered arrays of the surface layer protein have been obtained for this purpose by means of extensive heating in high CaCl2, a procedure derived from that of Buckmire and Murray. Low dose, low temperature electron microscopy has been applied to the large arrays.As a first step, the samples were negatively stained with neutralized phosphotungstic acid, and the specimens were imaged at 40,000 magnification by use of a high resolution cold stage on a JE0L 100B. Low dose images were recorded with exposures of 7-9 electrons/Å2. The micrographs obtained (Fig. 1) were examined by use of optical diffraction (Fig. 2) to tell what areas were especially well ordered.

The three-dimensional structure of frozen-hydrated left- and right-handed forms of bacterial flagellar filaments from an identical serotype

1986 ◽  
Vol 44 ◽  
pp. 298-299
Author(s):  
S. Trachtenberg ◽  
D. J. DeRosier
Keyword(s):  
Ionic Strength ◽  
Basal Body ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Protein Species ◽  
Liquid Environment ◽  
Bacterial Flagellum ◽  
Left And Right ◽  
Rotary Motor ◽  
Helical Parameters

The bacterial cell is propelled through the liquid environment by means of one or more rotating flagella. The bacterial flagellum is composed of a basal body (rotary motor), hook (universal coupler), and filament (propellor). The filament is a rigid helical assembly of only one protein species — flagellin. The filament can adopt different morphologies and change, reversibly, its helical parameters (pitch and hand) as a function of mechanical stress and chemical changes (pH, ionic strength) in the environment.

Advantages of Complementary Stereo Images as Viewed with the Low-Temperature Field-Emission SEM

1992 ◽  
Vol 50 (2) ◽  
pp. 1314-1315
Author(s):  
William P. Wergin ◽  
Eric F. Erbe
Keyword(s):  
Fold Increase ◽  
Horizontal Displacement ◽  
Three Dimensions ◽  
Stereo Image ◽  
Stereo Pair ◽  
Sem Micrograph ◽  
Left And Right ◽  
The Common ◽  
The Brain ◽  
Pair Analysis

The eye-brain complex allows those of us with normal vision to perceive and evaluate our surroundings in three-dimensions (3-D). The principle factor that makes this possible is parallax - the horizontal displacement of objects that results from the independent views that the left and right eyes detect and simultaneously transmit to the brain for superimposition. The common SEM micrograph is a 2-D representation of a 3-D specimen. Depriving the brain of the 3-D view can lead to erroneous conclusions about the relative sizes, positions and convergence of structures within a specimen. In addition, Walter has suggested that the stereo image contains information equivalent to a two-fold increase in magnification over that found in a 2-D image. Because of these factors, stereo pair analysis should be routinely employed when studying specimens.Imaging complementary faces of a fractured specimen is a second method by which the topography of a specimen can be more accurately evaluated.

High-resolution topographic SEM and radiation damage: The rationale for using low beam voltage

1992 ◽  
Vol 50 (2) ◽  
pp. 1278-1279
Author(s):  
James Pawley ◽  
David Joy
Keyword(s):  
High Resolution ◽  
Imaging Techniques ◽  
Morphological Structure ◽  
Radiation Sensitivity ◽  
Beam Specimen ◽  
Measured Signal ◽  
Practical Consideration ◽  
Interaction Volume ◽  
Impact Area ◽  
Signal Contrast

The scanning electron microscope (SEM) builds up an image by sampling contiguous sub-volumes near the surface of the specimen. A fine electron beam selectively excites each sub-volume and then the intensity of some resulting signal is measured and then plotted as a corresponding intensity in an image. The spatial resolution of such an image is limited by at least three factors. Two of these determine the size of the interaction volume: the size of the electron probe and the extent to which detectable signal is excited from locations remote from the beam impact area. A third limitation emerges from the fact that the probing beam is composed of a number of discrete particles and therefore that the accuracy with which any detectable signal can be measured is limited by Poisson statistics applied to this number (or to the number of events actually detected if this is smaller). As in all imaging techniques, the limiting signal contrast required to recognize a morphological structure is constrained by this statistical consideration. The only way to overcome this limit is to increase either the contrast of the measured signal or the number of beam/specimen interactions detected. Unfortunately, these interactions deposit ionizing radiation that may damage the very structure under investigation. As a result, any practical consideration of the high resolution performance of the SEM must consider not only the size of the interaction volume but also the contrast available from the signal producing the image and the radiation sensitivity of the specimen.

Histological evaluation of cochlear hair cell damage from noise-induced hearing loss in chinchillas

1990 ◽  
Vol 48 (3) ◽  
pp. 332-333
Author(s):  
R.V. Harrison ◽  
R.J. Mount ◽  
P. White ◽  
N. Fukushima
Keyword(s):  
Hair Cell ◽  
Evoked Potential ◽  
Cell Damage ◽  
Acoustic Trauma ◽  
Histological Evaluation ◽  
Cell Integrity ◽  
Functional Changes ◽  
Cochlear Hair Cell ◽  
Left And Right ◽  
Contralateral Ear

In studies which attempt to define the influence of various factors on recovery of hair cell integrity after acoustic trauma, an experimental and a control ear which initially have equal degrees of damage are required. With in a group of animals receiving an identical level of acoustic trauma there is more symmetry between the ears of each individual, in respect to function, than between animals. Figure 1 illustrates this, left and right cochlear evoked potential (CAP) audiograms are shown for two chinchillas receiving identical trauma. For this reason the contralateral ear is used as control.To compliment such functional evaluations we have devised a scoring system, based on the condition of hair cell stereocilia as revealed by scanning electron microscopy, which permits total stereociliar damage to be expressed numerically. This quantification permits correlation of the degree of structural pathology with functional changes. In this paper wereport experiments to verify the symmetry of stereociliar integrity between two ears, both for normal (non-exposed) animals and chinchillas in which each ear has received identical noise trauma.

The crystallography characteristic of (Mn,Fe)S single crystal

1990 ◽  
Vol 48 (4) ◽  
pp. 898-899
Author(s):  
Jiang Xishan
Keyword(s):  
Single Crystal ◽  
Cast Steel ◽  
Point Group ◽  
Central Area ◽  
Hexagonal Crystal ◽  
Growth Step ◽  
Left And Right ◽  
Relationship Of ◽  
Fcc Structure ◽  
New Discovery

This paper reports the growth step pattern and morphology at equilibrium and growth states of (Mn,Fe)S single crystal on the wall of micro-voids in ZG25 cast steel by using scanning electron microscope. Seldom report was presented on the growth morphology and steppattern of (Mn,Fe)S single crystal.Fig.1 shows the front half of the polyhedron of(Mn,Fe)S single crystal,its central area being the square crystal plane,the two pairs of hexagons symmetrically located in the high and low, the left and right with a certain, angle to the square crystal plane.According to the symmetrical relationship of crystal, it was defined that the (Mn,Fe)S single crystal at equilibrium state is tetrakaidecahedron consisted of eight hexagonal crystal planes and six square crystal planes. The macroscopic symmetry elements of the tetrakaidecahedron correpond to Oh—n3m symmetry class of fcc structure,in which the hexagonal crystal planes are the { 111 } crystal planes group,square crystal plaits are the { 100 } crystal planes group. This new discovery of the (Mn,Fe)S single crystal provides a typical example of the point group of Oh—n3m.

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