Quickest descent line during alpine ski racing

2006 ◽  
Vol 9 (4) ◽  
pp. 221-228 ◽  
Author(s):  
Y. Hirano
Keyword(s):  
Descent Line

Leaded Aviation Fuel May Present Long-Term Effects on Campus Life from the Adjacent Albert Whitted Airport

2020 ◽  
Author(s):  
Joseph Matthews ◽  
Madhu Pandey
Keyword(s):  
United States ◽  
Particulate Matter ◽  
The United States ◽  
Aviation Fuel ◽  
University Campus ◽  
Long Term Effects ◽  
Aviation Gasoline ◽  
Suspended Particulate ◽  
Descent Line

Propeller planes and small engine aircraft around the United States, legally utilize leaded aviation gasoline. The purpose of this experiment was to collect suspended particulate matter from a university campus, directly below an airport’s arriving flight path’s descent line, and to analyze lead content suspended in the air. Two collection sets of three separate samples were collected on six separate days, one set in July of 2018 and the second set in January 2019.

The Founders of Lineages at Copan and other Maya Sites

1992 ◽  
Vol 3 (1) ◽  
pp. 135-144 ◽  
Author(s):  
Linda Schele
Keyword(s):  
The People ◽  
Descent Line ◽  
Historical Individual

AbstractDecipherments and interpretations presented by Peter Mathews and Bertold Riese a decade ago led to the identification of numbered-successor titles that list individual rulers according to their numerical position in a historical succession of kings. Work on the inscriptions of Copan has shown that the “counts of successors” there began with a single founding ancestor, who has been identified archaeologically. Since the rulers of other kingdoms calculated their descent from different founding ancestors, the evidence suggests that Maya kingdoms were ruled by lineages or dynasties of males who calculated their descent for a single anchoring ancestor, who was very probably a historical individual. Evidence from Naranjo also suggests that alternative descent lines were calculated from supernatural anchoring ancestors. The metaphorical term for these lineages was “spout-tree-house.” All of the people in the lineage descending from these founders were called “sprouts,” while the ruling patriarch was the ahau of the descent line.

Descent line search scheme using Gers̆gorin circle theorem

2017 ◽  
Vol 45 (6) ◽  
pp. 565-569 ◽  
Author(s):  
Suvra Kanti Chakraborty ◽  
Geetanjali Panda
Keyword(s):  
Line Search ◽  
Circle Theorem ◽  
Descent Line

Asymmetric Caregiving by Grandparents, Aunts, and Uncles and the Theories of Kin Selection and Paternity Certainty: How Does Evolution Explain Human Behavior Toward Close Relatives?

2017 ◽  
Vol 51 (3) ◽  
pp. 263-284 ◽  
Author(s):  
Alexander Pashos
Keyword(s):  
Human Behavior ◽  
Kin Selection ◽  
Evolutionary Perspective ◽  
Paternity Uncertainty ◽  
Nonhuman Animals ◽  
Related Individuals ◽  
Descent Line ◽  
Close Relatives ◽  
Suitable Explanation

Evolutionary theories explain altruism between related individuals, not only for nonhuman animals but also humans themselves. In sociobiology and evolutionary psychology, the supposedly universally found stronger matrilineal kin caregiving by grandparents, aunts, and uncles is often explained by paternity uncertainty in the male descent line. The present article provides an overview of theories and results of the evolutionary research. I will focus, in particular, on the universal caregiving pattern as well as on cultural variety in kin caregiving, the role of actual paternity certainty in the society, theoretical inconsistencies, and nonconsanguineous step relationships. From the analysis of the empirical data, I will conclude that the paternity certainty hypothesis is in fact not a very suitable explanation for the asymmetric kin caregiving found in humans. I will discuss how human behavior toward relatives, in particular grandchildren, can be alternatively explained from an evolutionary perspective.

scholarly journals STELES AND STATUS: EVIDENCE FOR THE EMERGENCE OF A NEW ELITE IN YUAN NORTH CHINA

2016 ◽  
Vol 1 (1) ◽  
pp. 3-26 ◽  
Author(s):  
Tomoyasu Iiyama
Keyword(s):  
Fourteenth Century ◽  
North China ◽  
Political Status ◽  
Descent Line ◽  
Official Status ◽  
Shed Light ◽  
Patronage System ◽  
Mongol Rule

AbstractDrawing on stele inscriptions in a Yuan-period ancestral graveyard, this article aims to shed light on the emergence and evolution of a Chinese office-holding family in North China under Mongol rule (thirteenth- to fourteenth century). Tracing the family's connections with Mongols, it argues that adaptation to the Mongolian patronage system was essential to obtaining and maintaining political status during the Yuan, and that the kin group was stratified with the patronized descent line monopolizing political privilege. In doing so, the article highlights the value of stone inscriptions in clarifying official status, patronage, and inheritance rights in North China during the Yuan period.

Leaded Aviation Fuel May Present Long-Term Effects on Campus Life from the Adjacent Albert Whitted Airport

2020 ◽  
Author(s):  
Joseph Matthews ◽  
Madhu Pandey
Keyword(s):  
United States ◽  
Particulate Matter ◽  
The United States ◽  
Aviation Fuel ◽  
University Campus ◽  
Long Term Effects ◽  
Aviation Gasoline ◽  
Suspended Particulate ◽  
Descent Line

Propeller planes and small engine aircraft around the United States, legally utilize leaded aviation gasoline. The purpose of this experiment was to collect suspended particulate matter from a university campus, directly below an airport’s arriving flight path’s descent line, and to analyze lead content suspended in the air. Two collection sets of three separate samples were collected on six separate days, one set in July of 2018 and the second set in January 2019.

Sign in / Sign up

Export Citation Format

Share Document