The fourth level of social structure in a multi-level society: ecological and social functions of clans in hamadryas baboons

2009 ◽  
Vol 71 (11) ◽  
pp. 948-955 ◽  
Author(s):  
Amy L. Schreier ◽  
Larissa Swedell
Keyword(s):  
Social Structure ◽  
Social Functions ◽  
Hamadryas Baboons ◽  
Fourth Level ◽  
Multi Level

Higher order nonlinearities in a non-Doppler free geometryThis paper was presented at the International Conference on Precision Physics of Simple Atomic Systems, held at University of Windsor, Windsor, Ontario, Canada on 21–26 July 2008.

2009 ◽  
Vol 87 (7) ◽  
pp. 843-850 ◽  
Author(s):  
Andal Narayanan ◽  
Archana Sharma ◽  
T. M. Preethi ◽  
H. Abheera ◽  
Hema Ramachandran
Keyword(s):  
Electromagnetically Induced Transparency ◽  
Level Density ◽  
Kerr Nonlinearity ◽  
Low Light ◽  
Atomic Systems ◽  
Fourth Level ◽  
All Optical ◽  
Multi Level ◽  
Induced Transparency ◽  
Photon Resonance

Multi-level gaseous atomic systems showing electromagnetically induced transparency (EIT) phenomenon also exhibit low light intensity nonlinear optical phenomena. This is primarily due to the supression of linear susceptibility for the probe light during EIT. Therefore under EIT, nonlinear interactions become appreciable even at very low light intensities. In particular, Kerr nonlinearity in N systems irradiated by three fields has been both experimentally and theoretically investigated. In this paper, we report an all optical observation of an absorptive three-photon resonance feature, of subnatural width, in a N level scheme of gaseous rubidium, at room temperature, in a novel geometry of three independent beams. The non-Doppler free configuration of the beam in which the absorption is seen is the first such feature reported in a beam that is not directly taking part in the transparency effect. We have demonstrated the velocity selective nature of this absorption and studied the contrast dependence on detuning from the fourth level. Density matrix calculations have been carried out for this geometry, the results of which are in qualitative agreement with the experiment.

Community social structure, social capital and adolescent smoking: A multi-level analysis

2012 ◽  
Vol 18 (4) ◽  
pp. 796-804 ◽  
Author(s):  
Thorolfur Thorlindsson ◽  
Margret Valdimarsdottir ◽  
Stefan Hrafn Jonsson
Keyword(s):  
Social Capital ◽  
Social Structure ◽  
Adolescent Smoking ◽  
Multi Level ◽  
Level Analysis

The adaptive value of secondary males in the polygynous multi-level society of hamadryas baboons

2015 ◽  
Vol 158 (3) ◽  
pp. 501-513 ◽  
Author(s):  
Shahrina Chowdhury ◽  
Mathew Pines ◽  
Julian Saunders ◽  
Larissa Swedell
Keyword(s):  
Hamadryas Baboons ◽  
Adaptive Value ◽  
Multi Level

scholarly journals A LANDMARK MATCHING ALGORITHM FOR THE GEOSTATIONARY SATELLITE IMAGES BASED ON MULTI-LEVEL GRIDS

2020 ◽  
Vol XLII-3/W10 ◽  
pp. 569-574 ◽  
Author(s):  
S. Y. Hou ◽  
Z. Y. Qin ◽  
L. Niu ◽  
W. G. Zhang ◽  
W. T. Ai
Keyword(s):  
Cloud Cover ◽  
Satellite Image ◽  
Geostationary Satellite ◽  
Layer By Layer ◽  
Matching Accuracy ◽  
Data Set ◽  
Matching Algorithm ◽  
Fourth Level ◽  
Multi Level ◽  
Landmark Matching

Abstract. The resolution of geostationary satellite image is not high and the image is covered with clouds. At present, when the extracted feature points are unstable, there are some problems, such as low matching accuracy or even matching failure. In this paper, a landmark matching algorithm is proposed to directly establish the multi-level grids for the image coastline and the coastline template. Through the similarity measure of the multi-level grids, the landmark matching is realized layer by layer. First of all, we've finished cloud detection, establishment of landmark data set, and extraction of image coastline. Then we design and implement the landmark matching algorithm based on multi-level grids. Finally, through analysis from different levels of landmarks and different proportion of cloud cover, the advantages and applicable conditions of this algorithm are given. The experimental results show that: 1) with the increase of cloud cover, the correct rate of landmark matching decreases, but the decrease is small. It shows that the matching algorithm in this paper is stable. Correct matching rate could always be stable at about 75 percent in the fourth level. 2) when the proportion of cloud cover is less than 20 percent, the higher the matching level, the higher the matching accuracy. When the cloud cover is more than 20 percent, the matching accuracy in the fourth level is the highest. This algorithm provides a stable method for the landmark matching of geostationary satellite image.

scholarly journals STRUKTUR DAN FUNGSI SOSIAL LEGENDA SETEMPAT SAMPURAGA DI DESA SIRAMBAS KECAMATAN PANYABUNGAN BARAT KABUPATEN MANDAILING NATAL

2018 ◽  
Vol 6 (1) ◽  
pp. 110
Author(s):  
Wendi Nofrialdi ◽  
Hasanuddin WS ◽  
Muhammad Ismail Nasution
Keyword(s):  
Social Structure ◽  
Social Life ◽  
Social Function ◽  
Structure And Function ◽  
Point Of View ◽  
Social Solidarity ◽  
Social Functions ◽  
The Social ◽  
Identity Based ◽  
And Function

This research had a purpose to describe Social Structure and Function of Legend of Sampuraga Story. The theory used by researchers in this research was folklore theory. The type of this research is qualitative research with description method which is explaining facts explicitly obtained from research object. To be able to describe the Social Structure and Function of the Legend of Sampuraga, this research is done by analyzing the data as an object with the following steps. (1) to describe the Structure of Folklore Legend of Sampuraga. (2) to describe the socio-function of the folklore of the Samapuraga legend. Structures are elements that build a ceruta, there are elements that are (1) characterizations, (2) style of language, (3) events and plot, (4) point of view, (5) background, and (6) theme and mandate. Furthermore, social function is a form of community belief to folklore they have and become a separate function in their social life. The social functions are (1) as a means of entertainment, (2) as a means of education (3) a means of social control, (4) social solidarity inauguration, and (5) group identity. Based on data analysis conducted, it can be concluded that there are only 5 elements in the Structure of Folklore Legend because the point of view is not found in the folklore Legend Sampuraga. All the social functions described above apply to the community of folklore owner Legend Sampuraga.Keywords: folklore, sampuraga, social function

scholarly journals Coordination during group departures and progressions in the tolerant multi-level society of wild Guinea baboons (Papio papio)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Davide Montanari ◽  
William J. O’Hearn ◽  
Julien Hambuckers ◽  
Julia Fischer ◽  
Dietmar Zinner
Keyword(s):  
Adult Males ◽  
Hamadryas Baboons ◽  
Similar Frequency ◽  
Group Coordination ◽  
Collective Movement ◽  
Males And Females ◽  
Multi Level ◽  
Individual Success ◽  
Almost All ◽  
Papio Papio

AbstractCollective movement of social groups requires coordination between individuals. When cohesion is imperative, consensus must be reached, and specific individuals may exert disproportionate influence during decision-making. Animals living in multi-level societies, however, often split into consistent social subunits during travel, which may impact group coordination processes. We studied collective movement in the socially tolerant multi-level society of Guinea baboons (Papio papio). Using 146 group departures and 100 group progressions from 131 Guinea baboons ranging in Senegal’s Niokolo-Koba National Park, we examined individual success at initiating group departures and position within progressions. Two-thirds of attempted departures were initiated by adult males and one third by adult females. Both sexes were equally successful at initiating departures (> 80% of initiations). During group progressions, bachelor males were predominantly found in front, while reproductively active ‘primary’ males and females were observed with similar frequency across the whole group. The pattern of collective movement in Guinea baboons was more similar to those described for baboons living in uni-level societies than to hamadryas baboons, the only other multi-level baboon species, where males initiate and decide almost all group departures. Social organization alone therefore does not determine which category of individuals influence group coordination.

scholarly journals A multi-level society comprised of one-male and multi-male core units in an African colobine (Colobus angolensis ruwenzorii)

2019 ◽  
Author(s):  
Samantha M. Stead ◽  
Julie A. Teichroeb
Keyword(s):  
Social Organization ◽  
Mammalian Species ◽  
Hierarchical Cluster ◽  
Adult Males ◽  
Hamadryas Baboons ◽  
The Social ◽  
Multi Level ◽  
Using Data ◽  
Hierarchical Cluster Analyses ◽  
Insight Into

AbstractA few mammalian species exhibit complex, nested social organizations, termed multi-level societies. Among nonhuman primates, multi-level societies have been confirmed in several African papionin and Asian colobine species. Using data on individually-recognized Rwenzori Angolan colobus at Lake Nabugabo, Uganda, we document the first multi-level society in an African colobine. The study band comprised up to 135 individuals living in 12 socially and spatially distinct core units that ranged in size from 4 to 23 individuals. These core units shared a home range, and fissioned and fused throughout the day. Using the association indices between core units, we employed hierarchical cluster analyses and permutation tests to show that some core units clustered into clans. Thus, we confirm three tiers of social organization for Rwenzori Angolan colobus: core unit, clan, and band. The social organization of this subspecies is unlike any reported previously in a nonhuman primate, with about half the core units containing a single adult male and the others containing multiple reproductive adult males. Preliminary data show males to transfer within the band and female to transfer outside of the band, which suggests that, like Hamadryas baboons, this subspecies could provide insight into the selective pressures underlying hominin social organization.

A study on the social structure and dispersal patterns of hamadryas baboons living in a commensal group at Taif, Saudi Arabia

Primates ◽  
2007 ◽  
Vol 48 (3) ◽  
pp. 179-189 ◽  
Author(s):  
Akio Mori ◽  
Akihiro Yamane ◽  
Hideki Sugiura ◽  
Takayoshi Shotake ◽  
Ahmed Boug ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Social Structure ◽  
Dispersal Patterns ◽  
Hamadryas Baboons ◽  
The Social

The rise and fall of leader males in a multi-level society: Takeovers and tenures of male hamadryas baboons

2014 ◽  
Vol 77 (1) ◽  
pp. 44-55 ◽  
Author(s):  
Mathew Pines ◽  
Shahrina Chowdhury ◽  
Julian Saunders ◽  
Larissa Swedell
Keyword(s):  
Hamadryas Baboons ◽  
Multi Level
Sign in / Sign up

Export Citation Format

Share Document