In recent decades, democratic countries have signed hundreds of international environmental agreements (IEAs). Most of these are weak and do not include effective enforcement. To study this puzzle, we propose a positive theory of IEAs in which the political incumbents negotiate in the shadow of reelections. We show that incumbents are prone to negotiate treaties that are simultaneously overambi...

Kai Nagel,* Dietrich E. Wolf, Peter Wagner, and Patrice Simon Los Alamos National Laboratory, TSA-DO/SA Mail Stop M997, Los Alamos, New Mexico 87545 Theoretische Physik, Gerhard-Mercator-Universität, 47048 Duisburg, Germany Zentrum für Paralleles Rechnen, Universität zu Köln, 50923 Köln, Germany Deutsches Zentrum für Luftund Raumfahrt, Linder Höhe, 51170 Köln, Germany ~Received 18 December 1997!

Received 04 Oct., 2013 Accepted 10 Jan., 2014 (006206) 1 Department of Chemistry, State University of Maringá – UEM, Maringá, PR, Brazil, e-mail: [email protected] 2 Universidade Tecnológica Federal do Paraná – UTFPR, Campus Londrina, Tecnologia de Alimentos, Londrina, PR, Brazil 3 Federal University of Latin American Integration – UNILA, Foz do Iguaçú, PR, Brazil *Corresponding author Evalu...

Guilherme Bicalho Saturnino, ∗ Caio Padoan de Sá Godinho, † Denise Fagundes-Lima, ‡ Alcides Castro e Silva, § and Gerald Weber ¶ Departamento de F́ısica, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil Departamento de F́ısica, Universidade Federal de de Ouro Preto, Ouro Preto, MG, Brazil

The Atlantic forest is a terrestrial biome that extends along the Brazilian coast and has been subject of intense deforestation for decades. There are presently several efforts to try to preserve the flora and fauna of what remains from this region (e.g., Coco et al. 2014, Maciel-Silva et al. 2014, Missagia et al. 2014), but several questions on how the distinct floristic units of this biome ar...

EXTREME PREMATURITY AND ATTENTION IMPAIRMENT Preterm infants are at increased risk for a wide range of developmental disorders, including sensory, motor, cognitive, and other brain disorders (Lorenz et al., 1998; Bhutta et al., 2002; Aarnoudse-Moens et al., 2009), and the risk is highest for those infants born before 28 weeks gestation, i.e., extremely preterm or extremely low gestational age i...

lightning is a characteristic of severe weather and often associated with hail and heavy rainfall. it is a natural hazard with potential threat to human life and considerable damages to aviation structures. therefore, lightning prediction is critical and the real-time lightning detection systems are able to determine the location of cloud-to-ground (cg) lightning strikes accurately.generally ma...

Chronic myeloid leukemia (CML) is a clonal myeloproliferative disease consisting of chronic phase (CP), accelerated phase (AP) and blast crisis (BC). In recent years, molecular mechanism of CMLBC has been comprehensively investigated. Based on the DNA sequencing, several somatic gene mutations in patients with CML-BC has been revealed. These gene including RUNX1, ASXL1, IKZF1, WT1, TET2, IDH1, ...