Their estimated population in was 3,; at that time one of the most powerful tribes on the northern Gulf of Mexico coast west of what is now Floridathey inhabited the area around Grand Lake in what is now southern Louisiana. The Chitimacha linguistic group also included the Washa and Chawasha tribes. Traditionally, the Chitimacha were sun worshipers who reinterred the bones of their dead and practiced ritual head deformation. The men used nose ornaments, wore their hair long, and tattooed their arms, legs, and faces.
The small-signal speed of sound in humid air is calculated from a model which includes the real-gas effects from the equation of state for humid air and the vibrational dispersion due to N2, O2, and CO2 relaxation.
Other atmospheric effects such as dispersion due to viscothermal and rotational relaxation, heat radiation, propagation along the air-ground boundary, the density gradient, turbulance, aerosols and fogs are considered and found to be unimportant for frequencies between 1Hz and 5 HHz at one atmosphere.
The uncertainty in predicting the sound speed varies between 0. Experimental results in humid air at 20C and 30C are in excellent agreement with the model.
For the propagation frequency of 20 Hz, it is found that the presently used sound-ranging formula, c - A correction to the "sonic" temperature determination is suggested with results in deviations of less than 0.
For over a century, various neuroanatomical measures have been employed as assays of cognitive ability in comparative studies. Nevertheless, it is still unclear whether these measures actually correspond to cognitive ability.
A recent meta-analysis of cognitive performance of a broad set of primate species has made it possible to provide a quantitative estimate of general cognitive ability across primates.
We find that this estimate is not strongly correlated with neuroanatomical measures that statistically control for a possible effect of body size, such as encephalization quotient or brain size residuals.
Instead, absolute brain size measures were the best predictors of primate cognitive ability. Moreover, there was no indication that neocortex-based measures were superior to measures based on the whole brain. The results of previous comparative studies on the evolution of intelligence must be reviewed with this conclusion in mind.
Originally published in This study investigated the effect of different breathing rates on cardiac autonomic tone and blood pressure control. The influence of nose and mouth-only breathing was also assessed.
After obtaining ethical approval and informed consent, sixteen healthy subjects 8 males, 8 females, aged Cardiac autonomic tone was assessed by heart rate variability HRV in the time domain and by power spectral analysis PSA in the frequency domain.
Blood pressure control was evaluated by baroreflex sensitivity BRS derived from a transfer function analysis of the PSA data. Time domain measures showed that compared to spontaneous breathing, standard deviation of normal RR intervals SDNN ms Total power ms2 a frequency domain measure of HRV was increased at 6 cpm Compared with mouth breathing, nose-only breathing decreased nLF These data suggest that reduced breathing frequency particularly 6 cpm is associated with increased parasympathetic activity, cardiac autonomic tone and blood pressure control, and that nose-only breathing is associated with altered sympathovagal balance, predominantly reflecting increased cardiac vagal activity.
Toussaint, Terry Winograd, and David R. We demonstrate relationships between the classic Euclidean algorithm and many other fields of study, particularly in the context of music and distance geometry.
Specifically, we show how the structure of the Euclidean algorithm defines a family of rhythms which encompass over forty timelines ostinatos from traditional world music. We prove that these Euclidean rhythms have the mathematical property that their onset patterns are distributed as evenly as possible: Indeed, Euclidean rhythms are the unique rhythms that maximize this notion of evenness.
We also show that essentially all Euclidean rhythms are deep: Finally, we characterize all deep rhythms, showing that they form a subclass of generated rhythms, which in turn proves a useful property called shelling.Methodology for Addressing the Issue: This project will initiate a collaborative effort between the USGS Wetland and Aquatic Research Center and the Chitimacha to increase the tribe’s ability to prevent, plan, and prepare for these environmental challenges by enhancing technical skills; facilitating access to software and data; and .
What is Ethnographic Research? Anthropologists, ethnographers, and other social scientists may engage in something called ethnography. Ethnography, simply stated, is the study of people in their own environment through the use of methods such as participant observation and face-to-face interviewing.
Area, Inc., seeks proposals for ethnographic research regarding the El Camino Real de los Tejas National Historic Trail in Louisiana.
The attached Request for Proposals outlines the intent of the project, proposal submission guidelines, and contains contacts for additional information.
NATIVE AMERICAN NATIONS. Last update - September 16, Maintained by Lisa Mitten. INFORMATION ON INDIVIDUAL NATIVE NATIONS. This section contains links to pages that have either been set up by the nations themselves, or are pages devoted to a particular nation, and are ALPHABETICAL BY TRIBAL NAME. ABOUT THIS SITE: The food notes provided for each state are meant as starting points for your research. They are not comprehensive; nor are they presented in a standardized format containing exactly the same information for each state, as you would find in an encyclopedia. Ehani OhunKaKan Project/Ancient Ethnographic Preservation Project Chitimacha Tribe of Louisiana Language Revitalization Program Assist with salary expenses for language and cultural instructors in the Tribe's CRF Phase 1 Project List.
Thank you for your interest in this project. The Chitimacha Indians (Sitimaxa-"people of the many waters") were the original inhabitants of the area. Around A.D., the Chitimacha began settling the bayou region of Louisiana, where they lived in permanent villages in homes constructed of cane, wood and palmetto leaves.
ABOUT THIS SITE: The food notes provided for each state are meant as starting points for your research. They are not comprehensive; nor are they presented in a standardized format containing exactly the same information for each state, as you would find in an encyclopedia.
History. The Chitimacha Indians and their ancestors inhabited the Mississippi River Delta area of south central Louisiana for thousands of years before European encounter.
Tradition asserts that the boundary of the territory .