Results 111 to 120 of about 59,864 (304)

Fecal Steroids as Tracers of Human Population and Waste Management Practices at the Ancient Maya City of Ucanal, Guatemala

Archaeometry, EarlyView.
ABSTRACT Geochemical data compiled from dried sediments from three water reservoirs at the ancient Maya city of Ucanal, Petén, Guatemala, reveal low to undetectable fecal biomarker concentrations. These low concentrations may be the result of the aerobic decay of sterols combined with well‐managed waste disposal practices.
Jean D. Tremblay, Peter M. J. Douglas, Christina T. Halperin, Yves Gélinas   +3 more
wiley   +1 more source

2023 Jishishan Earthquake-triggered river terrace landslide enabled by tectonic and human activities

npj Natural Hazards
The continued increase in demand for food is such that flood-irrigation-based agricultural techniques are not expected to change in the future.
Zonglin Zhang, Runqiang Zeng, Shufen Zhao, Ziran Wei, Xingmin Meng, Zhao Long, Xiaorui Wang, Tianjun Qi, Ruihuan Su, Bing Wu, Jianhua Ma, Dongxia Yue, Guan Chen, Yi Zhang, Yajun Li, Yan Zhao   +15 more
doaj   +1 more source

Hydrology of the Central Arctic River Basins of Alaska [PDF]

, 1973
The work upon which this report is based was supported in part by funds (Project A-031-ALAS) provided by the United States Department of Interior, Office of Water Resources Research, as authorized under the Water Resources Act of 1964, as ...
Carlson, Robert F., Kane, Douglas L.
core  

Morphometric and Paleobiological Insights Into Pleistocene Sicilian Wolf Populations

Acta Zoologica, EarlyView.
ABSTRACT The Pleistocene wolves (Canis lupus) from Sicily represent one of the few known insular populations of this species from that time period. Despite their potential relevance for understanding carnivore adaptations in insular contexts, no dedicated study has previously investigated their morphology and evolutionary significance.
Domenico Tancredi, Carolina Di Patti, Sabrina Lo Brutto, Matteo Cammarata   +3 more
wiley   +1 more source

Soil-plant mercury concentrations in the Idrijca river terraces (Slovenia)

Geologija, 2004
The subjects of research are mercury contents in plants and soils on river terraces in the lower reaches of the Idrijca River. Samples of averaged meadow forage and plaintain (Plantago lanceolata) contain from 0.055 to 0.220 mg Hg/kg in dry matter.
Mateja Gosar
doaj  

Morphology of Guard Hairs in Amazonian Marsupials: Intergeneric Variation, Habitat and Habit Association in a Phylogenetic Framework of the Order Didelphimorphia

Acta Zoologica, EarlyView.
ABSTRACT The cuticle and medulla of guard hairs exhibit distinct morphological patterns among mammalian species. To investigate this variability in marsupials from the Brazilian Amazon, we analysed guard hairs from nine Didelphimorphia species and incorporated data from an additional 25 didelphid species.
Matheus M. Bitencourt, Ana Cristina Mendes‐Oliveira, Gleomar F. Maschio, Maria Clara S. Ribeiro, Alexandra M. R. Bezerra   +4 more
wiley   +1 more source

Late Miocene-Early Pliocene Matemateaonga Formation in eastern Taranaki Peninsula: A new 1:50,000 geological map and stratigraphic framework [PDF]

, 2004
In recent years the Matemateaonga Formation has become an additional exploration play in Taranaki Basin. Exploration interest has been stimulated by the success of Swift Energy Company in the Rimu/Kauri prospect (38719), located near south Taranaki Coast.
Kamp, Peter J.J., Vonk, Adam J.
core   +1 more source

Self‐Giving and Reflections on Life Extension: How Love Might Shape the Choice of Whether to Live Past a Natural Human Lifespan

Bioethics, EarlyView.
ABSTRACT Drawing upon a deprivationist account of the badness of death, Ingemar Patrick Linden advocates for a hypothetical state called “contingent immortality.” The future Linden champions is one in which every person would be able to live for as long as they would like, save for events like accidents or murder.
Andrew Moeller, Ann‐Marie Shorrocks, Keith Lemna   +2 more
wiley   +1 more source

Modelling for a land suitability analysis of rice terraces on the upland area using the geographic information system (GIS) and analytical hierarchical process (AHP)

Research in Agricultural Engineering
Rice fields are the main source of rice production. Rice field expansion is one way to increase rice production. Rice field expansion activities for the upland area in Indonesia are often overlooked due to limited information about the availability of ...
Razali, Rahmawaty, Chairani Hanum, Zulkifli Nasution   +3 more
doaj   +1 more source

Differential uplift and incision of the Yakima River terraces, central Washington State [PDF]

, 2015
Amos, CB, Bender, AM, Bierman, P, Kelsey, H, Rood, DH, Sherrod, B, Staisch, L   +6 more
core   +1 more source