Views of Private-Land Stewardship among Latinos on the Texas–Tamaulipas Border

Abstract

Successful conservation efforts require understanding predictors of private-land stewardship (PLS), its definitions, and what people feel they owe stewardship responsibility to. Various strands of research have touched on the concept, but there is little research focusing on how it is communicated and enacted among the lay public, especially among Latinos. We used a case study in the Lower Rio Grande Valley of Texas to address this gap by identifying and assessing Latino views of PLS. Our results indicate positive relationships between self-identification as a land steward, male gender, and agricultural-land ownership. Respondents associated PLS with property maintenance (60%), naturalresource conservation (14%), and addressing pollution problems (21%). They viewed PLS as a responsibility owed to family rather than to a larger community.

Explicitly correlated coupled cluster methods with pair-specific geminals

“…One may note that both for equilibrium distances and for harmonic frequencies the VDZ-F12 results for Br 2 , As 2 and Ga 2 seem slightly better than the VTZ-F12 ones. This has also been observed by Peterson and Hill [39] and is probably due to some fortuitous error cancellation due to intramolecular BSSE effects. If the much larger aug-cc-pwCVnZ-PP basis sets are used, a smooth convergence pattern is found.…”

“…This is due to the fact that these bases were not devised for cv and cc correlation without including F12; they contain only very few additional functions for correlating the d-shell. For a proper treatment of cc and cv effects without F12, the much larger aug-cc-pwCVnZ-PP basis sets [53] would be needed. In contrast to standard MP2, the MP2-F12 method recovers with just one geminal exponent about 75-80% and with the optimized exponent for core correlation 93-94% of the cc correlation energies, using the small VDZ-F12 basis (as compared to the best MP2-F12/VQZ-F12 energies).…”

“…Here we define "core" to be the 3d orbitals; correlation of the 3s and 3p orbitals in Br, As, Ga, and Cu has a very small effect on the results and has therefore not been included. For Br, As, and Ga we used newly optimized cc-pVnZ-F12-PP orbital basis sets of Peterson and Hill [39], along with their associated OPTRI sets for CABS construction and MP2FIT sets for density fitting. All OPTRI basis sets include basis functions up to l = 6 (i), as required to treat the correlation of d-electrons.…”

Rate Constant and Thermochemistry for K + O2 + N2 = KO2 + N2

“…In this work the geometries of O 2 , O 2 − , and KO 2 were obtained using coupled cluster theory and the large aug-ccpwCVQZ atomic basis set for oxygen 49 and specially constructed for potassium by Peterson and co-workers, 50 with all the electrons correlated. The optimized O−O distances in the three molecules are 0.121, 0.135, and 0.135 nm, consistent with a K + O 2 − species where there is charge transfer to the oxygen.…”

“…In KO 2 the computed K−O distance is 0.240 nm. Then single-point energies were derived with CCSD(T)/aug-ccpwCV5Z theory, 50 again with all electrons correlated, followed by a scalar relativistic correction Erel (mass-velocity plus Darwin terms) performed at the CISD/aug-cc-pwCVQZ level of theory. These calculations were made with the Molpro 2010 program, 51 and the results are listed in Table S2 (Supporting Information).…”