Slow crack growth in spinel in water

Magnesium aluminate spinel was tested in a water environment at room temperature to establish its slow crack-growth behavior. Ring specimens with artificial flaws on the outside surface were loaded hydraulically on the inside surface. The time to failure was measured. Various precracking techniques were evaluated and multiple precracks were used to minimize the scatter in the static fatigue tests. Statistical analysis techniques were developed to determine the strength and crack velocities for a single flaw. Slow crack-growth rupture was observed at stress intensities as low as 70 percent of K sub c. A strengthening effect was observed in specimens that had survived long-time static fatigue tests

A voz da louca, a voz da outra

As mulheres loucas tornaram-se personagens presentes na literatura ocidental desde o séc. XVIII, em diferentes perspectivas. A ficção de mulheres, e principalmente a partir do final do séc. XIX, vai tratar do tema da loucura de forma empática, inclusive dando voz a personagens loucas e mesmo usando-as como protagonistas. Essas personagens habitam duplamente as margens: tanto por serem mulheres, quanto por serem loucas. Dessa forma, elas ocupam, de forma cabal, o lugar do Outro. Espaço de reflexão sobre o Mesmo, as mulheres loucas da literatura talvez prefigurem o cansaço de algumas das estruturas sociais vigentes

A coreografia do tango : viagem e gênero em Sérgio Faraco

O conto “Dançar tango em Porto Alegre”, do gaúcho Sérgio Faraco, será lido dentro de uma perspectiva de gênero, uma vez que se centra na relação estabelecida entre o personagem-narrador e uma personagem feminina. Igualmente, uma leitura da inserção do conto na literatura sul-rio-grandense se faz necessária para o bom entendimento do conto. Cheio de referências culturais, tais como o tango, “Dançar tango em Porto Alegre” se beneficiará também de uma leitura de suas possíveis significações. _______________________________________________________________________________ ABSTRACTDançar tango em Porto Alegre, written by Sérgio Faraco, will be analyzed in a gendered perspective, once it is centered in the relationship established between the autodiegetic narrator and a feminine character. The short story will also be placed in the literary tradition of the state of Rio Grande do Sul as part of its reading. Full of cultural references, the short story needs to be analyzed, also, according to them

The Role of Young Environmental Activists in Iceland and Furthering Youth Engagement with Environmental Issues

This paper looks at the role of youth environmental activism in Iceland and how these actors view their work in a country which has long held a reputation as one of the greenest in the world. Much of the credit for that distinction goes not to careful choices, sacrifice, or excellent stewardship but rather to its ideal geography providing massive geothermal energy which Iceland turns into electricity, a clean renewable source. So are there young environmental activists in Iceland, and if so what do they do? Short answer: yes, and they study and talk. The long answer is more complex. On a global scale, youth serve as necessary actors in the affairs of environmental issues, and Icelandic youth are no exception. Pulling from six interviews with youth identified as environmentalists by themselves and their peers, these key players were found to be engaged in multiple ways, considering themselves to hold an important and developing role in the country. This paper further looks at ways in which future generations of environmental activists can be encouraged to join the fight for planet Earth both in Iceland and internationally

Coxey\u27s Army: Popular Protest in the Gilded Age

Review of: Coxey\u27s Army: Popular Protest in the Gilded Age, by Benjamin F. Alexander