Body Tremulations and Their Transmission as Vibrations for Short Distance Information Transfer Between Ephippiger Male and Female

2019 ◽  
pp. 43-49
Author(s):  
René-Guy Busnel ◽  
Francois Pasquinelly ◽  
Bernard Dumortier
Keyword(s):  
Short Distance ◽  
Information Transfer ◽  
Distance Information ◽  
Male And Female

Degradation of Great Tit (Parus Major) Song Before And After Foliation: Implications for Vocal Communication in a Deciduous Forest

Behaviour ◽  
2004 ◽  
Vol 141 (8) ◽  
pp. 935-958 ◽  
Author(s):  
Sandra Blumenrath ◽  
Torben Dabelsteen
Keyword(s):  
Information Transfer ◽  
Structural Changes ◽  
Vocal Communication ◽  
Deciduous Forest ◽  
Parus Major ◽  
Great Tit ◽  
Transmission Experiment ◽  
Distance Information ◽  
Before And After ◽  
The Impact

AbstractSongbirds living in temperate forests experience great seasonal changes in habitat acoustics during the part of the breeding season when singing activity is high. These changes, which are brought about by accelerated vegetation growth and leaf burst in spring, affect sound propagation and potentially render vocal communication more difficult as the total number of scattering and absorbing obstacles increases. We investigated this in a sound transmission experiment in which representative great tit (Parus major) songs were broadcast in a typical forest habitat before and after foliation. Speaker and microphone were placed at natural separation distances and in typical sender and receiver positions. For each song note we quantified several aspects of sound degradation and found that they all increased considerably when leaves were present. Before foliation the same amount of degradation would only be obtained by doubling the transmission distance, i.e. foliage shortens the active space of great tit song. This inevitably alters distance information, provided that distance-dependent, structural changes of received songs are used as ranging cues. Moreover, sender and receiver positions within the canopy become unfavourable compared to heights just below the canopy when the aim is to maximise song propagation distances. Altogether, the presence of foliage greatly affects the potential for vocal information transfer in great tits and requires behavioural and/or perceptual adjustment of the communicating individuals to counteract or reduce the impact of foliage on signal degradation.

THE EFFECTIVE LAGRANGIAN APPROACH TO THE "PROTON-SPIN PUZZLE" AND THE ISSUE OF "TWO COMPONENTS"

1992 ◽  
Vol 07 (01) ◽  
pp. 1-11 ◽  
Author(s):  
J. SCHECHTER ◽  
V. SONI ◽  
A. SUBBARAMAN ◽  
H. WEIGEL
Keyword(s):  
Matrix Element ◽  
Short Distance ◽  
Skyrme Model ◽  
Proton Spin ◽  
Point Of View ◽  
Lagrangian Approach ◽  
Lagrangian Point ◽  
Distance Information ◽  
Effective Lagrangian

The "proton-spin puzzle" is examined from the effective Lagrangian point of view. A generalized (to include "short distance" information) Skyrme model is shown to give a satisfactory picture. We then examine the question of the breakup of the axial singlet matrix element into "matter" and "glue" pieces in this framework.

scholarly journals Recent Developments in Rare Kaon Decays

2003 ◽  
Vol 18 (19) ◽  
pp. 1273-1285 ◽  
Author(s):  
Giancarlo D'Ambrosio
Keyword(s):  
Standard Model ◽  
Short Distance ◽  
Kaon Decays ◽  
Distance Information ◽  
The Standard Model ◽  
Recent Developments ◽  
Theoretical Issues

We discuss theoretical issues in rare and radiative kaon decays. The interest is twofold: to extract useful short-distance information and understand the underlying dynamics. We emphasize channels where either we can understand nonperturbative aspects of QCD or there is a chance to test the Standard Model.

scholarly journals Social structure and relatedness in the fringe-lipped bat ( Trachops cirrhosus )

2020 ◽  
Vol 7 (4) ◽  
pp. 192256
Author(s):  
Victoria Flores ◽  
Gerald G. Carter ◽  
Tanja K. Halczok ◽  
Gerald Kerth ◽  
Rachel A. Page
Keyword(s):  
Social Structure ◽  
Information Transfer ◽  
Foraging Behaviour ◽  
Null Model ◽  
Male And Female ◽  
Trachops Cirrhosus ◽  
In Captivity ◽  
In The Wild ◽  
Term Data

General insights into the causes and effects of social structure can be gained from comparative analyses across socially and ecologically diverse taxa, such as bats, but long-term data are lacking for most species. In the neotropical fringe-lipped bat, Trachops cirrhosus , social transmission of foraging behaviour is clearly demonstrated in captivity, yet its social structure in the wild remains unclear. Here, we used microsatellite-based estimates of relatedness and records of 157 individually marked adults from 106 roost captures over 6 years, to infer whether male and female T. cirrhosus have preferred co-roosting associations and whether such associations were influenced by relatedness. Using a null model that controlled for year and roosting location, we found that both male and female T. cirrhosus have preferred roosting partners, but that only females demonstrate kin-biased association. Most roosting groups (67%) contained multiple females with one or two reproductive males. Relatedness patterns and recapture records corroborate genetic evidence for female philopatry and male dispersal. Our study adds to growing evidence that many bats demonstrate preferred roosting associations, which has the potential to influence social information transfer.

scholarly journals Short-distance information from B(KL→μ+μ−)

1998 ◽  
Vol 423 (3-4) ◽  
pp. 385-394 ◽  
Author(s):  
G. D'Ambrosio ◽  
G. Isidori ◽  
J. Portolés
Keyword(s):  
Short Distance ◽  
Distance Information

Parallel interconnect for a novel system approach to short distance high information transfer data links

1997 ◽  
Author(s):  
Glenn Raskin ◽  
Michael S. Lebby ◽  
F. Carney ◽  
M. Kazakia ◽  
Daniel B. Schwartz ◽  
...  
Keyword(s):  
Short Distance ◽  
System Approach ◽  
Information Transfer ◽  
Transfer Data ◽  
Data Links ◽  
High Information

scholarly journals Extracting short distance information fromb→sℓ+ℓ−effectively

2007 ◽  
Vol 75 (3) ◽  
Author(s):  
Keith S. M. Lee ◽  
Zoltan Ligeti ◽  
Iain W. Stewart ◽  
Frank J. Tackmann
Keyword(s):  
Short Distance ◽  
Distance Information

scholarly journals Gender Comparison on Teaching Practices of One Teacher Schools

2020 ◽  
Vol V (IV) ◽  
pp. 32-41
Author(s):  
Mona Rafiq ◽  
Naveed Sultana
Keyword(s):  
Qualitative Study ◽  
Rural Areas ◽  
Lived Experiences ◽  
Primary Schools ◽  
Short Distance ◽  
Small Population ◽  
Male And Female ◽  
Gender Comparison ◽  
Female Teachers ◽  
5Th Grade

Primary schools in rural areas of Pakistan have been opened at very short distance firstly due to small geographical boundaries of the villages and secondly to improve the enrollment of students. The small population in villages resulted in low enrollment of the students. According to rationalization policy of Government of Pakistan, the student-teacher ratio is 35:1; therefore, student strength of schools in rural areas hardly reaches 40; hence, a single teacher is allocated, and students in a school from Zero grade to 5th grade sit together in either one room or two and are taught by mostly one or two teachers concurrently This qualitative study was conducted in rural primary schools for girls and boys to explore lived experiences of male and female teachers in One Teacher Schools/multi-grade and to find out differences in teaching on the gender-disaggregated basis. The management of multi grades single-handedly is the toughest job.

The Clinical, Roentgenological and Morphological Effects of an Acute Exposure of Phosgene on the Lungs of Dogs

1971 ◽  
Vol 29 ◽  
pp. 236-237
Author(s):  
R. F. Bils ◽  
W. F. Diller ◽  
F. Huth
Keyword(s):  
Latent Period ◽  
Chemical Industry ◽  
Toxic Substance ◽  
Lung Edema ◽  
X Rays ◽  
Beagle Dogs ◽  
Male And Female ◽  
Morphological Alterations ◽  
Before And After ◽  
Electron Microscopes

Phosgene still plays an important role as a toxic substance in the chemical industry. Thiess (1968) recently reported observations on numerous cases of phosgene poisoning. A serious difficulty in the clinical handling of phosgene poisoning cases is a relatively long latent period, up to 12 hours, with no obvious signs of severity. At about 12 hours heavy lung edema appears suddenly, however changes can be seen in routine X-rays taken after only a few hours' exposure (Diller et al., 1969). This study was undertaken to correlate these early changes seen by the roengenologist with morphological alterations in the lungs seen in the'light and electron microscopes.Forty-two adult male and female Beagle dogs were selected for these exposure experiments. Treated animals were exposed to 94.5-107-5 ppm phosgene for 10 min. in a 15 m3 chamber. Roentgenograms were made of the thorax of each animal before and after exposure, up to 24 hrs.

Ultrastructural investigation of spontaneous pituitary gonadotroph cell adenomas in aging Sprague-Dawley rats

1983 ◽  
Vol 41 ◽  
pp. 702-703
Author(s):  
D. J. McComb ◽  
J. Beri ◽  
F. Zak ◽  
K. Kovacs
Keyword(s):  
Electron Microscopy ◽  
Animal Model ◽  
Epoxy Resin ◽  
Immunoelectron Microscopy ◽  
Tumor Type ◽  
Gonadal Function ◽  
Sprague Dawley ◽  
Male And Female ◽  
Reticulin Fibers ◽  
Sprague Dawley Rats

Gonadotroph cell adenomas of the pituitary are infrequent in human patients and are not invariably associated with altered gonadal function. To date, no animal model of this tumor type exists. Herein, we describe spontaneous gonadotroph cell adenomas in old male and female Sprague-Dawley rats by histology, immunocytology and electron microscopy.The material consisted of the pituitaries of 27 male and 38 female Sprague Dawley rats, all 26 months of age or older, removed at routine autopsy. Sections of formal in-fixed, paraffin-embedded tissue were stained with hematoxylin-phloxine-saffron (HPS), the PAS method and the Gordon-Sweet technique for the demonstration of reticulin fibers. For immunostaining, sections were exposed to anti-rat β-LH, anti-ratβ-TSH, anti-rat PRL, anti-rat GH and anti-rat ACTH 1-39. For electron microscopy, tissue was fixed in 2.5% glutaraldehyde, postfixed in 1% OsO4 and embedded in epoxy-resin. Tissue fixed in 10% formalin, embedded in epoxy resin without osmification, was used for immunoelectron microscopy.

Sign in / Sign up

Export Citation Format

Share Document