Question

Lennard-Jonesium (“lennard-jones-ium”) 38 requires enhanced sampling to visit the entire space spanned by these variables because it is not ergodic on the timescale of the simulation. Berendsen et al. extracted the essential dynamics of protein fluctuations into modes that make excellent choices for these variables, which are obtained through dimensional reduction of trajectories in molecular dynamics. An “intrinsic” choice (10[1])of these variables traces the unique minimum energy path through 3N-minus-6-dimensional configuration space. (-5[2])The synchronous transit method finds points where the derivative of the Gibbs free energy with respect to these (10[1])variables (10[1])is zero on a PES (“P-E-S”). These (10[1])variables are the x-axis on plots (10[1])with local maxima at transition states. (10[2]-5[1])For (10[1]-5[1])10 (10[1])points, (10[1])name these variables chosen (10[1])to represent changes (10[1])in structure (10[1])during a reaction. ■END■ (10[5]0[10])

ANSWER: reaction coordinates [or collective variables; accept intrinsic reaction coordinates or geometric coordinates or order parameters; prompt on parameters; prompt on atomic or nuclear positions, bond angles, dihedral angles, or bond lengths by asking “they are part of what broader set of variables?”]
<Chemistry>
= Average correct buzz position

Back to tossups

Summary

2024 ACF Nationals2024-04-21Y2378%0%17%107.56

Buzzes

PlayerTeamOpponentBuzz PositionValue
Rasheeq AzadNorth Carolina BMinnesota B5710
Connor BlakeChicago BCornell A70-5
Bryan UgazArizona StatePenn70-5
Adam FineChicago AColumbia A8810
Andrew WangIllinoisYale A8910
Matt SchiavonePurdueWUSTL A9510
Michal GerasimiukStanfordTexas10110
Jason HongBrownToronto A107-5
Swapnil GargBerkeley ANYU10710
Vincent DuNorth Carolina AWaterloo10710
Yashwanth BajjiMichiganIowa State108-5
Tiffany ZhouFloridaToronto B10810
Kevin ParkClaremont CollegesWUSTL B10910
Andrew SalijNorthwesternGeorgia Tech11010
Alex AkridgeIndianaMinnesota A11410
Joy AnHarvardTruman State11710
Derek ChenColumbia BDuke11910
Kunaal ChandrashekarToronto ABrown12310
Rohan ShelkeBerkeley BChicago C12310
Asha BasuMcGillCornell B1230
Andrew EllisKentuckyChicago D1230
Ezra SantosChicago DKentucky1230
Yared TadesseCornell BMcGill1230
David BassJohns HopkinsMaryland12310
Guy IndoranteIowa StateMichigan1230
Max HodesChicago CBerkeley B1230
Richard NiuCornell AChicago B12310
Lydia TarekegnYale BRutgers1230
Maude-Sophie LockmanOttawaVirginia1230
Joseph ChambersVirginiaOttawa1230
Kushal AluruRutgersYale B12310
Andrew HannaPennArizona State1230