Results 171 to 180 of about 301,465 (293)
Ultrasonographic Ocular Biometry of the Greater Caribbean Manatee (Trichechus manatus manatus)
Veterinary Ophthalmology, EarlyView.ABSTRACT This study aimed to characterize the ocular biometry of the Trichechus manatus manatus applying B‐mode ultrasonography across different age groups. Twenty‐two animals were assessed employing a portable ultrasound device equipped with a linear transducer. Five ocular parameters were assessed: corneal thickness (CT), anterior chamber depth (ACD),
Radan Elvis Matias de Oliveira +10 more
wiley +1 more source
FORESEEN : a forest and remote sensing exchanges network [PDF]
, 2005 The Guiana Shield in South America is one of the largest wild areas in the world. However, this area is currently facing unsustainable logging, poor and often illegal mining practices and agricultural activities.
et al., +3 more
core
Journal of Sustainable Agriculture and Environment, Volume 5, Issue 1, March 2026.ABSTRACT This study was conducted to assess the impact of different agricultural practices on the physical quality and the carbon and nitrogen stocks of anthropogenic soils used by smallholder farmers in Central Amazonia, Brazil. Undisturbed and disturbed soil samples were collected at three depths (0–0.10 m, 0.10–0.20 m, and 0.20–0.30 m), with five ...
Heitor Marcel da Silva Ribeiro +9 more
wiley +1 more source
Geopolitical Risk and Food Inflation
Thunderbird International Business Review, Volume 68, Issue 2, Page 165-176, March/April 2026.ABSTRACT This study investigates the complex relationship between geopolitical risk and food inflation, a critical issue for global food security. Using panel data from 177 countries from 2019 to 2021, the research employs a random effects estimation model to analyze the dynamic.
Izaete Leite Nogueira +2 more
wiley +1 more source
Araucaria, 2010 Entre 1901 y 1906, un equipo de geógrafos militares franceses visitó el Ecuador para desarrollar el segundo estudio geodésico del arco del meridiano ecuatorial; un esfuerzo que no solo conmemoraba el proyecto precedente del siglo XVIII, sino que ...
Ernesto Capello
doaj
Review of river fisheries valuation in Central and South America [PDF]
, 2008 Unlike Africa and Asia, where a large part of the population are heavily dependent upon fishing for their livelihoods, fishing for a living in the interior of Central and South America (CSA) remains a marginal occupation for all but the most isolated of ...
Bennett, E., Thorpe, A.
core +1 more source
American Journal of Human Biology, Volume 38, Issue 2, February 2026.ABSTRACT The Shuar Health and Life History Project (established in 2005) is an interdisciplinary, integrated field and laboratory research project with the Indigenous Shuar population in Amazonian Ecuador. Grounded in human biology, behavioral ecology, evolutionary psychology, evolutionary medicine, and global health, the SHLHP has three key research ...
Samuel S. Urlacher +2 more
wiley +1 more source
, 1982 Four limnological investigations were conducted in different seasons of the years 1968 and 1969 at the lower reaches of the Rio Tapajóz. The physical and chemical parameters generally correspond with earlier findings of other authors. Midriver areas show
Schmidt, G.
core
American Journal of Human Biology, Volume 38, Issue 2, February 2026.ABSTRACT Objectives Altitude shapes human morphology as highland populations must cope with cold and hypoxic environments. Although Andean highlanders have been proposed to exhibit larger and deeper ribcages, this idea is mainly based on research using disarticulated skeletal elements or non‐South American controls. The objective of this research is to
J. M. López‐Rey +9 more
wiley +1 more source