Conditioned place preference reveals ongoing pain in calves 3 weeks after disbudding.

Hot-iron disbudding, a routine procedure that prevents horn bud growth through cauterization, is painful for calves. The resulting burns remain sensitive to touch for weeks, but it is unknown whether calves experience ongoing, non-evoked pain. We evaluated conditioned place preference for analgesia in 44 calves disbudded or sham-disbudded 6 hours (Day 0) or 20 days (Day 20) before testing (n = 11/treatment). Calves were conditioned to associate the effects of a lidocaine cornual nerve block with the location and pattern of a visual stimulus, and a control injection of saline with the contrasting stimulus. On Day 0, disbudded calves tended to prefer the lidocaine-paired stimulus over the saline-paired one, suggesting that they found analgesia rewarding. On Day 20, sham calves avoided the lidocaine-paired stimulus, consistent with humans' experience of this drug being painful. Disbudded calves on Day 20 did not show this aversion, suggesting that they traded off the short-term pain of the lidocaine with the longer-term analgesia provided. Day 0 sham calves did not avoid the lidocaine-paired stimulus, likely because they received less than half the dose of Day 20 calves during conditioning. Thus, higher doses of lidocaine are aversive to uninjured animals, but disbudded calves are willing to engage in this cost. We conclude that calves experience ongoing pain 3 weeks after disbudding, raising additional welfare concerns about this procedure

Enrollment Trends in Northwest Arkansas Charter Schools

Northwest Arkansas is home to nine public charter schools, with plans to open a new charter school for the 2020-21 school year. These schools, which serve unique missions, are some of the most highly ranked schools in the State of Arkansas. While critics argue that public charter schools segregate based on race or academic ability, national evidence finds that these claims are highly context specific. What conclusions can we draw about northwest Arkansas charter schools based on enrollment trends in recent years

A Systematic Review of Pregnancy Prevention Programs for Minority Youth in the U.S.: A Critical Analysis and Recommendations for Improvement

African American and Latino youth experience disproportionate rates of both intended and unintended pregnancy in the United States. A public health priority to ameliorate the high rates among this population has been the creation and proposed expansion of pregnancy prevention programs designed specifically for minority youth. However, little is known about the role of incorporating cultural components into program curricula. To better understand the components and outcomes of existing programs for this population, this systematic review analyzed published outcome evaluations of adolescent pregnancy prevention programs for minority youth. This review of literature published from January 2002 to June 2012 and retrieved from databases PsycInfo and PubMed abstracted results from 10 outcome evaluations, meeting all inclusion criteria. These publications were assessed for intervention characteristics including use of theory, setting, and culturally specific aspects. In addition, aspects of the evaluation including design, outcome variables, and measures were assessed. Nine of the ten evaluations found statistically significant results for a main pregnancy prevention variable (e.g., ever had sex, contraceptive use, or previous birth). The review also indicated areas for improvement in methodological quality, and consistency in cultural components, variables and measures. Implications of this research indicate a positive impact from adolescent pregnancy prevention programs for minority youth, and a need to expand standardized measures and program components as well as increase rigor in research methodology