A Child is Being Caged: Resignation Syndrome and the Psychopolitics of Petrification.

Uppgivenhetssyndrom, or resignation syndrome (RS), is a disorder that until recently was thought to affect the children of refugees in Sweden alone. The heuristic of psychopolitics is used to theorize RS as a form of abjection (Bataille, Kristeva) and petrification (Fanon, Marriott), and the movement from petrification to petrification in hallucinosis (Fanon, Bion) is delineated: first these children are petrified by persecutory and culturally specific stereotypes that precede and exceed them symbolically, and then, through a succession of shocks, they enter a post-traumatic stupor in which the faltering symbolization of the stereotype gives way to the (dis)embodiment of abject thinghood. Marriott's distinction between mirror as mask and mask as mirror allows the attribution of RS not only to sociocultural mimesis and the psychosocial impact of stereotypes (mirror as mask) but also to a socially imposed absence that the stereotype simultaneously conceals and reveals (mask as mirror). RS (petrification in hallucinosis) is considered the (dis)embodiment of this socially imposed absence.

The Genomic Basis of Postponed Senescence in Drosophila melanogaster.

Natural populations harbor considerable genetic variation for lifespan. While evolutionary theory provides general explanations for the existence of this variation, our knowledge of the genes harboring naturally occurring polymorphisms affecting lifespan is limited. Here, we assessed the genetic divergence between five Drosophila melanogaster lines selected for postponed senescence for over 170 generations (O lines) and five lines from the same base population maintained at a two week generation interval for over 850 generations (B lines). On average, O lines live 70% longer than B lines, are more productive at all ages, and have delayed senescence for other traits than reproduction. We performed population sequencing of pools of individuals from all B and O lines and identified 6,394 genetically divergent variants in or near 1,928 genes at a false discovery rate of 0.068. A 2.6 Mb region at the tip of the X chromosome contained many variants fixed for alternative alleles in the two populations, suggestive of a hard selective sweep. We also assessed genome wide gene expression of O and B lines at one and five weeks of age using RNA sequencing and identified genes with significant (false discovery rate < 0.05) effects on gene expression with age, population and the age by population interaction, separately for each sex. We identified transcripts that exhibited the transcriptional signature of postponed senescence and integrated the gene expression and genetic divergence data to identify 98 (175) top candidate genes in females (males) affecting postponed senescence and increased lifespan. While several of these genes have been previously associated with Drosophila lifespan, most are novel and constitute a rich resource for future functional validation.

Employer and new graduate satisfaction with new graduate performance in the workplace within the first year following convocation from the Ontario Veterinary College.

Mailed questionnaires administered to employers of graduates and to graduates of the Ontario Veterinary College in 2000 and 2001, 7 to 10 months after convocation, surveyed new graduate performance in the workplace. Proficiency at 9 species-specific (in 4 practice contexts) and 7 nonspecies-specific clinical activities were rated as "high," "some," or "low." Fifteen nonvocation-specific attributes, reflecting interpersonal, communication, and business skills, and the new graduate's competence to do his/her job were rated as "very good," "good," or "poor." Ninety or more percent of employers reported "high" to "some" proficiency in 8/9, 5/9, 3/9, and 1/9 activities relative to small animal, food animal, equine, and exotic animal practice, respectively, and in 5/7 nonspecies-specific clinical activities. Ninety or more percent of employers assessed workplace proficiency as "very good" to "good" in 13/15 nonvocation-specific work skills and overall competence to do the job for which the new graduate had been hired.

Adoptive transfer of BALb/c mouse splenocytes reduces lesion severity and induces intestinal pathophysiologic changes in the Mycobacterium avium Subspecies paratuberculosis beige/scid mouse model.

Successful immune reconstitution would enhance resistance of beige/scid mice to chronic infection with Mycobacterium avium subspecies paratuberculosis, but may cause damage to intestinal tissue. Therefore, we investigated the effect of adoptive transfer of BALB/c mouse splenocytes on lesion severity and intestinal physiology in beige/scid mice infected with M. paratuberculosis. Mice were inoculated intraperitoneally (i.p.) with M. paratuberculosis, and two weeks later were inoculated i.p. with viable spleen cells from immune-competent BALB/c mice. Mice were necropsied 12 weeks after infection when engraftment of lymphocytes, clinical disease, pathologic lesions, and intestinal electrophysiologic parameters were evaluated. Lymphocytes were rare in control beige/scid mice not inoculated with spleen cells. In contrast, high numbers of CD4+, CD8+, and B220+ lymphocytes were detected in the spleen of all beige/scid mice (n = 24) inoculated with spleen cells, indicating that adoptive transfer resulted in successful engraftment of donor lymphocytes (immune reconstitution). Immune reconstitution of M. paratuberculosis-infected beige/ scid mice significantly reduced the severity of clinical disease and pathologic lesions, and numbers of bacteria in the liver. However, intestinal electrophysiologic parameters studied in vitro indicated that intestinal tissues from reconstituted beige/scid mice had reduced short-circuit current responses (due to reduced ion secretion) following electrical, glucose, and forskolin stimulation. These abnormal responses suggested that neural or epithelial cells in the intestine were damaged. We conclude that successful immune reconstitution of beige/scid mice enhance their resistance to M. paratuberculosis infection, but may cause pathophysiologic changes associated with intestinal inflammation.