Results 51 to 60 of about 52,220 (213)

Nonclassical measurement error in farmland markets with implications for Ricardian analysis

American Journal of Agricultural Economics, Volume 108, Issue 2, Page 599-629, March 2026.
Abstract Nonclassical measurement error threatens the validity of empirical economic models. We examine the extent to which land value measures that are commonly used in studies of the US farmland market are subject to nonclassical measurement error. We consider differences in county‐level land values from two popular data sources: (1) self‐reported ...
Daniel P. Bigelow, Margaret Jodlowski
wiley   +1 more source

Desarrollo y optimización de un snack extruido funcional a base de maca (Lepidium meyenii Walp.), lúcuma (Pouteria lucuma (Ruiz & Pav.) Kuntze) y espirulina (Arthrospira maxima Setchell & Gardner)

Revista de Investigación e Innovación Agropecuaria y de Recursos Naturales
Ante el aumento en la demanda de productos nutritivos y beneficiosos, esta investigación elaboró y perfeccionó un aperitivo extruido con maca (Lepidium meyenii Walp.), lúcuma (Pouteria lucuma (Ruiz & Pav.) Kuntze) y espirulina (Arthrospira maxima ...
Edson Hilmer Julca Marcelo, Hugo Fernando Cañari Marticorena, Raúl Inga Peña, Shalin Carhuallanqui Avila, Natali Heidi Contreras Aylas, Deysi Alina Colachagua Calderón, Aixa Xiomara Rivas Quinto   +6 more
doaj   +1 more source

Lepidium meyenii Walp Exhibits Anti-Inflammatory Activity against ConA-Induced Acute Hepatitis

Mediators of Inflammation, 2018
Strong inflammation is a prominent pathogenesis of acute hepatitis, which can induce hepatocyte death and lead to liver failure. Lepidium meyenii Walp (Maca) is a traditional herbal medicine mostly used in improving sperm motility and serum hormone ...
Wei Zheng, Shouwen Du, Mingyao Tian, Wang Xu, Yufei Tian, Tiyuan Li, Yanling Fu, Shipin Wu, Chang Li, Ningyi Jin   +9 more
doaj   +1 more source

Histomorphmetric studies on the protective role of Maca (Lepidium meyenii) on New Zealand White Rabbits prostate gland under oxidative stress

SVU-International Journal of Veterinary Sciences, 2023
The prostate gland considers the most important gland among rabbits' accessory genital glands and secretes many factors essential for sperm function. This study aims to show the impact of Maca as an antioxidant on the prostate gland's histomorphology and
Asmaa Nabil, Fatma El-Zahraa A. Mustafa, Enas A. Abdelhefez, Mostafa Galal Abdelfattah, M. A. M. Sayed, Manal T Hussein   +5 more
doaj   +1 more source

Population expansion in the North African Late Pleistocene signalled by mitochondrial DNA haplogroup U6 [PDF]

, 2010
Background <br/> The archaeology of North Africa remains enigmatic, with questions of population continuity versus discontinuity taking centre-stage.
Behar, D.M., Costa, M.D., Fernandes, V., Franco-Duarte, R., Macaulay, V., Martins, H., Pereira, J.B., Pereira, L., Richards, M., Silva, N.M., Soares, P.   +10 more
core   +4 more sources

How to Fish With Respect: A Transformation of Human‐Fish Relations in Riverside Amazonia

American Anthropologist, Volume 128, Issue 1, Page 63-72, March 2026.
ABSTRACT Riverside inhabitants of the Middle Xingu River Basin, in the Brazilian Amazonia, frequently say that it is important to respect animals and the forest spirits who protect them. In recent decades, however, the development of an iced fish industry in the region has changed what respect means and how it is expressed when it comes to fishing ...
Vinicius de Aguiar Furuie
wiley   +1 more source

The Shuar Health and Life History Project: Overview at 20 Years and Introduction to the Special Issue

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, Theresa E. Gildner, Lawrence S. Sugiyama   +2 more
wiley   +1 more source

Comparative Studies of DPPH Radical Scavenging Activity and Content of Bioactive Compounds in Maca (Lepidium meyenii) Root Extracts Obtained by Various Techniques

Applied Sciences, 2023
The effect of the extraction conditions on the DPPH radical scavenging activity and isolation of bioactive compounds from the maca (Lepidium meyenii) root was investigated.
Małgorzata Dzięcioł, Agnieszka Wróblewska, Katarzyna Janda-Milczarek   +2 more
doaj   +1 more source

Collision-free Time Slot Reuse in Multi-hop Wireless Sensor Networks [PDF]

, 2005
To ensure a long-lived network of wireless communicating sensors, we are in need of a medium access control protocol that is able to prevent energy-wasting effects like idle listening, hidden terminal problem or collision of packets.
Havinga, Paul, Hoesel, Lodewijk van
core   +4 more sources

Effects of Traceability Scope and Sample Quantity on Origin Tracing of Mineral Elements in Mung Beans

Food Science &Nutrition, Volume 14, Issue 2, February 2026.
Mineral element fingerprint analysis technology is one of the effective methods for grain origin identification. The accuracy of the identification model is closely related to sample origin, including traceability scope and sample quantity. ABSTRACT Mineral element fingerprint analysis technology is one of the effective methods for grain origin ...
Mingming Chen, Zhigang Quan, Lili Qian, Dongjie Zhang   +3 more
wiley   +1 more source