Results 131 to 140 of about 423,623 (239)

Quantitative Analysis of Locus Coeruleus Neurons and Thalamic Noradrenergic Axons in a Progressive 1‐Methyl‐4‐phenyl‐1,2,3,6‐tetrahydropyridine Monkey Model of Parkinson's Disease

Movement Disorders, EarlyView.
Abstract Background Parkinson's disease is mainly characterized by dopaminergic neurodegeneration in the substantia nigra pars compacta (SNc) and α‐synuclein accumulation. The locus coeruleus (LC) is also affected in Parkinson's disease and linked to some nonmotor symptoms, but the extent and timing of its degeneration remain unclear.
Megan Carrillo, Nagore Hernández‐Pinedo, Josefa Zaldivar‐Diez, Isabel Pérez‐Santos, José A. Obeso, Carmen Cavada, Javier Blesa   +6 more
wiley   +1 more source

Graduates studies and scientific research in Peruvian universities

Revista MENDIVE, 2020
The University has the essential function of research, in addition to continuing with the professional training of those who graduate. This research presented how was the growth of postgraduate studies and the evolution of scientific research in Peruvian
Walther Hernán Casimiro Urcos, Consuelo Nora Casimiro Urcos, Javier Francisco Casimiro Urcos   +2 more
doaj  

Mean‐Variance Payoff Applied to Stackelberg Games

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We analyse a Stackelberg duopoly in which the leader faces uncertainty about the intercept demand, while the follower observes the realised demand and decides whether to enter the market after the uncertainty is resolved. The leader evaluates the uncertainty by maximising a mean‐variance utility function that captures its risk aversion.
João M. Silva, Margarida A. Brito, Alberto A. Pinto, Alberto A. Álvarez‐López   +3 more
wiley   +1 more source

Hechtia mixtecana sp. nov. (Hechtioideae; Bromeliaceae), from Oaxaca, Mexico

Nordic Journal of Botany, EarlyView.
Botanical explorations carried out in the state of Oaxaca, Mexico, led to the discovery of a new Bromeliaceae: Hechtia mixtecana,which is here described and illustrated. The new taxon is compared with the morphologically similar Hechtia fragilis, Hechtia lyman‐smithii, and Hechtia minuta.
Rodrigo Alejandro Hernández‐ Cárdenas, Adolfo Espejo‐ Serna, Ana Rosa López‐ Ferrari, Sofía Ana Lucrecia Lara‐ Godínez, Andrew Siekkinen   +4 more
wiley   +1 more source

Dental Stigmata and Skeletal Lesions of Congenital Treponematosis in Early Agricultural Vietnam (4000–3500 bp)

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT Prior research has documented treponematosis at a single site in Mainland Southeast Asia from northern Vietnam dated to the early agricultural transition (~4000–3500 bp). To date, no other cases in Southeast Asia's prehistory have been identified.
Melandri Vlok, Tran Thi Minh, Nicola Czaplinski, Hallie Buckley, Kate Domett, Hiep Hoang Trinh, Nguyen Thi Mai Huong, Nghia Thi Huu, Do Thi Kim Dung, Nguyen Thi Sau, Nguyen Phuong Thao, Do Thi Lan, Phan Thi Kim An, Luong Hong Phuoc, Hirofumi Matsumura, Marc Oxenham   +15 more
wiley   +1 more source

Marine trophic architecture and hidden ecological connections in the Strait of Magellan: keystone species and ecosystem resilience

Oikos, EarlyView.
Understanding the ecological implications of species coexistence is central to biodiversity studies and to identify environmental and anthropogenic drivers of ecosystem dynamics, where ecological network analysis offers valuable insights. This study examines the complexity, structure, and potential responses to disturbances of the Strait of Magellan's ...
Claudia D. Andrade, Taryn Sepúlveda, Cristóbal Rivera, Cristian Aldea, Tomás I. Marina   +4 more
wiley   +1 more source

Habitat‐based spatial patterns enable realistic reconstruction of plant spatial arrangements across complex landscapes

Oikos, EarlyView.
Spatially explicit individual‐based models provide a powerful way to explore spatial dynamics when direct observation is not feasible. But for many ecological applications, these models require detailed data on the initial spatial arrangement and traits of individuals – information rarely available in large, heterogeneous or novel landscapes.
Brayan Morera, Jose M. Fedriani, Thorsten Wiegand, Daniel Ayllón, Pedro J. Garrote   +4 more
wiley   +1 more source

Anisotropic community turn‐over at habitat edges informs on assembly drivers: simulation and empirical test on soil macrofauna

Oikos, EarlyView.
Biodiversity dynamics in heterogeneous landscapes is the result of a complex interplay between movement processes of organisms within and between habitat patches, and niche filtering processes due to spatially varying environmental conditions. Disentangling the relative influences of these different processes on community assembly and dynamics is a ...
Gwenaelle Auger, Julien Pottier, Laurence Andanson, Pauline Bonnal, Sandrine Revaillot, Marilyn Roncoroni, Franck Jabot   +6 more
wiley   +1 more source

Policy Capacity Under Decentralization: Kindergarten Education Reforms in the Philippines

Public Administration and Development, EarlyView.
ABSTRACT The paper examines the relationship between policy capacity and policy effectiveness in decentralized governance setups. It challenges the conventional view that policy functions should only be decentralized when requisite capacities already exist at lower levels of government. Instead, the paper proposes that capacity can follow function ‐ as
Kidjie Ian Saguin, M. Ramesh
wiley   +1 more source

Unveiling human–wildlife interactions in the context of livestock grazing abandonment and the return of large carnivores, ungulates and vultures: A stakeholder perspective

People and Nature, EarlyView.
Abstract Pastoral practices remain a widespread economic activity across European mountain regions. However, the viability of this activity may be threatened by the recovery of large wild vertebrates associated with passive rewilding, leading to the so‐called human–wildlife conflicts.
P. Acebes, F. J. Muñoz‐Gálvez, Z. Iglesias‐González, M. García‐Llorente, D. López‐García   +4 more
wiley   +1 more source