Sacramento State - From left, junior Brooke Estrada and seniors Kurtis Hofer and Michael Boyd Jr. show their research modeling youth substance use across the high school transition using a linear piecewise
![Photo: 1955 Kurtis Kraft KK500D Offy (serial # 371,built in 1954) # 39 Sumar/Chapman Root - Johnny Boyd driver 29th at Indy | Indy Car Roadsters Indianapolis 500 Watson-Kurtis Kraft and others Photo: 1955 Kurtis Kraft KK500D Offy (serial # 371,built in 1954) # 39 Sumar/Chapman Root - Johnny Boyd driver 29th at Indy | Indy Car Roadsters Indianapolis 500 Watson-Kurtis Kraft and others](https://images12.fotki.com/v1681/photos/5/40265/9420476/05zvi-vi.jpg)
Photo: 1955 Kurtis Kraft KK500D Offy (serial # 371,built in 1954) # 39 Sumar/Chapman Root - Johnny Boyd driver 29th at Indy | Indy Car Roadsters Indianapolis 500 Watson-Kurtis Kraft and others
![Minnesota Wild's Kurtis Foster, right, gets checked to the ice by Calgary Flames' Dustin Boyd during first period hockey action in Calgary, Canada, Tuesday, Jan. 9, 2007. (AP Photo/Jeff McIntosh Stock Photo - Minnesota Wild's Kurtis Foster, right, gets checked to the ice by Calgary Flames' Dustin Boyd during first period hockey action in Calgary, Canada, Tuesday, Jan. 9, 2007. (AP Photo/Jeff McIntosh Stock Photo -](https://c8.alamy.com/comp/2PC4PR1/minnesota-wilds-kurtis-foster-right-gets-checked-to-the-ice-by-calgary-flames-dustin-boyd-during-first-period-hockey-action-in-calgary-canada-tuesday-jan-9-2007-ap-photojeff-mcintosh-2PC4PR1.jpg)