Results 51 to 60 of about 528,961 (168)

Tema 3 Ecología. Guía

open access: yes, 2008
El método científico y la ecología. Métodos descriptivos, correlacionales y comparativos. Los experimentos manipulativos en campo y laboratorio. Los ensayos en microcosmos. Control experimental vs realismo.La escala y la selección de variables.
Bautista, Susana   +3 more
core   +1 more source

EDITORIAL

open access: yesPerspectiva Teológica, 1980
Nestes últimos números, 27º e 28º da Perspectiva Teológica, que completa seu 12º ano de existência, o professor Pedro Calderan Beltrão, da Pontifícia Universidade Gregoriana de Roma e da Universidade Unisinos de São Leopoldo, apresenta no artigo ...
P. Leopoldo Adami
doaj  

Domestication Enhances the Plastic Response of Root Economic Traits to Soil Variation in the Perennial Crop Cnidoscolus aconitifolius

open access: yesPlants
Domestication-driven shifts toward resource acquisition are well-documented above ground, but how it impacts belowground strategies remains controversial. Furthermore, the role of environmental variation and phenotypic plasticity in shaping root economic
Jazmin A. López-Herrejón   +2 more
doaj   +1 more source

Nutritional characterization of Cusco green tea and its synergistic effect with omega‐3 on metabolic and cognitive dysfunctions in obese rats

open access: yesJournal of the Science of Food and Agriculture, Volume 106, Issue 9, Page 5643-5657, July 2026.
Abstract BACKGROUND Obesity and its metabolic complications, such as insulin resistance and cognitive decline, remain a global health challenge. Green tea (Camelia sinensis) and ω‐3 polyunsaturated fatty acids (PUFAs) are recognized for their antioxidant, anti‐inflammatory, and neuroprotective properties.
Paola Finetti‐Casanova   +5 more
wiley   +1 more source

Arthur Posnansky, the Czar of Tiwanaku Archaeology

open access: yesBulletin of the History of Archaeology, 2019
Arthur Posnansky was the illustrious pioneer of Tiwanaku archaeology, remembered as a quixotic, flamboyant, and swashbuckling character. He was a naval officer, a businessman, and a scholar. He dedicated nearly fifty years of his life to the study of the
Erik J. Marsh
doaj   +1 more source

The Paleoenvironment of the Ndutu Bed at Olduvai Gorge in the Context of Middle Stone Age Expansion in Eastern Africa: A Multiproxy Approach to Ungulate Analyses From the Victoria Cabrera Site and Dorothy Garrod Site (MIS 5)

open access: yesInternational Journal of Osteoarchaeology, Volume 36, Issue 4, Page 1100-1113, July/August 2026.
ABSTRACT The study of the Eastern African archaeological record is essential for understanding the origin and evolution of the Middle Stone Age (MSA). However, Olduvai Gorge, one of the primary regions in human evolution studies, has few sites associated with the MSA.
Juan Marín   +8 more
wiley   +1 more source

Condiciones de vida y salud en zonas indígenas de Yucatán, México: 1990 y 2005.

open access: yesPoblación y Salud en Mesoamérica, 2010
Objetivo. Identificar los cambios ocurridos en las condiciones de vida y salud en municipios indígenas de Yucatán, México, entre los años 1990 y 2005. Metodología. El estudio fue de tipo transversal y comparativo. Se utilizaron dos indicadores: índice de
Rosa María Méndez González
doaj   +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

open access: yesPeople and Nature, Volume 8, Issue 7, Page 2078-2090, July 2026.
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   +4 more
wiley   +1 more source

Tema 1 Ecología. Guía

open access: yes, 2008
Introducción al objeto de estudio, la historia y disciplinas de la ...
Bautista, Susana   +3 more
core   +1 more source

More pumas (Puma concolor) does not change perceptions: The mismatched response of ranchers to the presence of a top carnivore

open access: yesPeople and Nature, Volume 8, Issue 7, Page 2148-2161, July 2026.
Abstract Human‐wildlife conflicts (HWCs) are one of the most critical conservation challenges worldwide. Large carnivores are frequently at the centre of these conflicts because of the perceived and real threats they pose to livestock and human safety.
Esperanza C. Iranzo   +10 more
wiley   +1 more source

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