Ionospheric electrodynamic model with an eccentric dipole geomagnetic field

A computer model of ionospheric electrodynamic processes using an eccentric dipole (ED) for the geomagnetic field has been developed. This is a development from existing models which are based on the centred dipole (CD) coaxial with the geographic axis. The ED dynamo model introduces or modifies the effects of hemispherical asymmetry and longitudinal variation in the dynamo processes through two explicit parameters—the geomagnetic field intensity and the length of the field lines. These parameters of the ED field have been quantified and displayed. An additional contribution to the above effects comes implicitly from the ionospheric parameters—plasma density and atmospheric tidal winds—which become asymmetric relative to the ED dip equator. The integrated effect of the geomagnetic and ionospheric parameters produces significant variation in the field line integrated ionospheric conductivity. The ED dynamo model shows that the peak height of the equatorial electrojet (EEJ) moves by over 2 km and height profiles of the EEJ display strong hemispherical asymmetry.     

Our Schools,Our Country: American Evangelicals,Public Schools,and the Supreme Court Decisions of 1962 and 1963

American evangelicals have long maintained a tense and paradoxical relationship to mainstream American culture. This article explores the effect of the 1962 and 1963 United States Supreme Court school decisions on that perennial tension. Unlike many conservatives, conservative evangelicals greeted the court's 1962 Engel decision to ban state‐written prayer in public schools with cautious approval; however, evangelicals saw the 1963 Schempp decision to ban Bible reading and the Lord's Prayer from those schools as an affront. The unique relationship between evangelical belief and America's public school system forced evangelicals to reconsider their special place in both schools and society as a whole. They concluded with surprising unanimity that those school decisions had done more than forced evangelical belief out of America's public schools; the decisions had pushed evangelicals themselves out of America's mainstream culture.     

和祖先一起歌唱

2007年秋天，我去参加一个有关“花儿”的研讨会，会址选在乐都的柳湾彩陶博物馆。在去乐都的路上，我一直纳闷，花儿会应该在田间地头、山野河边举办，在那样的环境里唱花儿，花儿的歌声才会嘹亮奔放，直上云霄。彩陶博物馆是存放文物古董的地方，是一个庄严、肃穆、神秘的所在，活泼热烈的花儿会怎么可以在这个地方开呢？     

“Our Journey,Our Choice,Our Future”: Huu‐ay‐aht First Nations’ Self‐Government enacted through the Maa‐nulth Treaty with British Columbia and Canada

In 2011, Huu‐ay‐aht First Nations became one of five Nuu‐chah‐nulth Nations on the west coast of Vancouver Island in Canada to implement the Maa‐nulth Treaty with the Province of British Columbia and Canada. Modern treaties are dense and lengthy legal documents that exhaustively set out the obligations of each signatory party. They are heavily criticised for being unjust extensions of colonialism that limit Indigenous self‐determination and transform homelands under settler colonial property regimes. Yet, some First Nations accept these agreements as their chosen path for self‐government in state structures. We document Huu‐ay‐aht First Nations’ decision‐making that resulted when the Maa‐nulth Treaty was implemented and replaced the Indian Act by analysing the Maa‐nulth Treaty and interviews conducted with Huu‐ay‐aht First Nations leadership. We demonstrate how ?iisaak (respect) and ?uu?a?uk (taking care of) guided Huu‐ay‐aht First Nations’ self‐government, while nesting this discussion in the complexities and critiques of modern treaties.