Microscopic picture of aging in SiO2

We investigate the aging dynamics of amorphous SiO2 via molecular dynamics simulations of a quench from a high temperature T_i to a lower temperature T_f. We obtain a microscopic picture of aging dynamics by analyzing single particle trajectories, identifying jump events when a particle escapes the cage formed by its neighbors, and by determining how these jumps depend on the waiting time t_w, the time elapsed since the temperature quench to T_f. We find that the only t_w-dependent microscopic quantity is the number of jumping particles per unit time, which decreases with age. Similar to previous studies for fragile glass formers, we show here for the strong glass former SiO2 that neither the distribution of jump lengths nor the distribution of times spent in the cage are t_w-dependent. We conclude that the microscopic aging dynamics is surprisingly similar for fragile and strong glass formers.Comment: 4 pages, 7 figure

Lysimachia nummularia L.

https://thekeep.eiu.edu/herbarium_specimens_byname/20856/thumbnail.jp

Starting Out: Changing Patterns of First Jobs for Michigan Law School Graduates

In the early 1950s, the typical graduate of Michigan Law began his career working as an associate in a law firm with four other lawyers and earned about $5,000 in his first year. Surprising to us today, in his new job he would have earned slightly less than other classmates whose first jobs were in government. Fifty years later, in the early 2000s, the typical graduate still started out as an associate in a law firm, but the firm she worked for had more than 400 lawyers. She earned about$114,000 in her first year, about three times as much as her classmates who began their careers in government. These and other fundamental changes in the beginnings of legal careers are findings from the University of Michigan Law School’s Alumni Survey. For 40 consecutive years, from 1967 through 2006, the Law School surveyed its graduates 15 years after graduation about their law school experiences and their careers. For more than 30 years (from 1973 through 2006), the survey included the graduates five years out, and for 10 years (from 1997 through 2006), the graduates 25, 35, and 45 years out. During the 40-year period, nearly 17,000 persons were asked to complete a questionnaire, with all classes except the five-year graduates of 1992–2001 surveyed more than once. On average, 67 percent of the surveyed graduates responded each year, an extraordinarily high rate for a mail questionnaire. Here is some of what we’ve found

The Recent Alumni of the University of Michigan Law School: A Report on a Survey of the Classes of 1966 and 1967 Fifteen Years After Graduation and the Classes of 1976 and 1977 Five Years After Graduation

This report cumulates responses to the fifteen year questionnaire for the classes of 1966 and 1967 and responses to the five year questionnaire for the classes of 1976 and 1977

Honesty, Privacy, And Shame: When Gay People Talk About Other Gay People to Nongay People

There is a longstanding convention among lesbians and gay men in the United States: Do not reveal the sexuality of a gay person to a heterosexual person; unless you are certain that the gay person does not regard his sexuality as a secret. Lie if necessary to protect her secret. Violating the convention by outing another person is widely considered a serious social sin

The Recent Alumni of the University of Michigan Law School: A Report on a Survey of the Classes of 1966 and 1967 Fifteen Years After Graduation and the Classes of 1976 and 1977 Five Years After Graduation

This report cumulates responses to the fifteen year questionnaire for the classes of 1966 and 1967 and responses to the five year questionnaire for the classes of 1976 and 1977

Who We Were and Who We Are: How Michigan Law Students Have Changed Since the 1950s: Findings from 40 Years of Alumni Surveys

For 40 consecutive years, from 1967 to 2006, the Law School surveyed its alumni regarding their lives and careers. The project began in 1967 with the mailing of a questionnaire to the class of 1952 shortly before their 15th reunion. The results proved interesting enough that surveys were sent each year thereafter to the class 15 years out. In 1973, the classes 5 years out were added to the survey

The Recent Alumni of the University of Michigan Law School: A Report on a Survey of the Classes of 1966 and 1967 Fifteen Years After Graduation and the Classes of 1976 and 1977 Five Years After Graduation

This report cumulates responses to the fifteen year questionnaire for the classes of 1966 and 1967 and responses to the five year questionnaire for the classes of 1976 and 1977

Faculty Views: Starting Out: Changing Patterns of First Jobs for Michigan Law School Graduates

For 40 consecutive years, from 1967 through 2006, the Law School surveyed its graduates 15 years after graduation about their law school experiences and their careers. For more than 30 years (from 1973 through 2006), the survey included the graduates five years out, and for 10 years (from 1997 through 2006), the graduates 25, 35, and 45 years out. The following details some of results found

Honesty, Privacy, And Shame: When Gay People Talk About Other Gay People to Nongay People

There is a longstanding convention among lesbians and gay men in the United States: Do not reveal the sexuality of a gay person to a heterosexual person; unless you are certain that the gay person does not regard his sexuality as a secret. Lie if necessary to protect her secret. Violating the convention by outing another person is widely considered a serious social sin