Results 151 to 160 of about 21,437,192 (294)

The emergence and complexification of symbolic practices in the Homo lineage: an archaeological and cognitive perspective Émergence et complexification des pratiques symboliques dans la lignée Homo : une approche archéologique et cognitive

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
Recent archaeological discoveries, reviewed in this essay, challenge traditional views on the emergence of human symbolic cognition. Once believed to have originated in Europe around 40,000 years ago, new evidence shows it emerged much earlier across diverse regions.
Francesco d'Errico   +3 more
wiley   +1 more source

Curtain Club Scrapbook (1947-1951) Page 037

open access: yes, 1951
A page of a scrapbook chronicling activities of the Ursinus College Curtain Club from 1947 to 1951. This page contains articles clipped from the February 21, 1949 Ursinus Weekly newspaper and the February 28, 1949 Ursinus Weekly newspaper.
Club, Curtain
core  

AGRICULTURE IN A SOCIALIST CITY: Towards an Alter‐Urban Political Ecology

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract Urban political ecology has developed as a critique of capitalist urbanization. This article develops the concept of alter‐urban political ecology to define urban environments emerging not from capitalist urbanization but from efforts to transform it. Drawing on archival research and ethnographic fieldwork in five urban farms in socialist Cuba,
Gustav Cederlöf
wiley   +1 more source

[Status of the Kansas Water Marketing Program and the Kansas Water Assurance Program]

open access: yes, 2002
application/pdf; Title supplied by cataloger.; "The purpose of the water marketing program is to develop adequate water supply storage to meet, as nearly as practicable, present and anticipated municipal and industrial water needs through the purchase of
Kansas Water Office.
core  

Prevalence of novel psychoactive substances in selected clinical urine specimens submitted for drug monitoring

open access: yesJournal of Forensic Sciences, EarlyView.
Abstract Novel psychoactive substances (NPS) are compounds emerging as alternatives to more established drugs of abuse. They are constantly changing and being modified, which makes their detection difficult. The study objective was to determine the prevalence of NPS in selected clinical specimens. Deidentified urine specimen remnants were analyzed that
Jillian R. Neifeld   +2 more
wiley   +1 more source

Curtain Club Scrapbook (1962-1972) Page 039

open access: yes, 1972
A page of a scrapbook chronicling activities of the Ursinus College Curtain Club from 1962 to 1972. This page contains a list of names of members of the Curtain Club organization for the 1964-1965 academic year.
Club, Curtain
core  

Edges as ecological filters: Asymmetrical orientation‐specific arthropod activity across forest boundaries

open access: yesInsect Science, EarlyView.
Moderate retention forestry creates structurally sharp forest edges that act as ecological filters, shaping orientation‐specific activity of ground‐dwelling arthropods. Using drift‐fence pitfall traps, we show that activity aligned with ecotones is more frequent than activity across forest–clearcut boundaries, particularly among detritivores.
Dominik Stočes   +3 more
wiley   +1 more source

Biochar for Lead Ion Removal from Aqueous Solutions: the Effect of Inorganic Carbonate. [PDF]

open access: yesACS Omega
Tarlera J   +10 more
europepmc   +1 more source

Report (Texas Water Development Board)

open access: yes, 2004
A guide on the practices, techniques, programs, and technologies that will protect water resources, reduce the consumption of water, reduce the loss or waste of water, improve the efficiency in the use of water, and increase the recycling and reuse of ...
Texas Water Development Board
core  

Comparison of Three Sympatric Desert Lizards: Digestive Tract Structure, Digestive Enzyme Activities, Gut Microbiota, and Metabolites

open access: yesIntegrative Zoology, EarlyView.
We performed 16S rDNA sequencing and metabolite profiling for three sympatric lizard species—Teratoscincus roborowskii, Phrynocephalus axillaris, and Eremias roborowskii—and compared their goblet cell and enzyme activities in the digestive tract. Our study suggests that the dietary niche may promote divergence or convergence of microbiota across host ...
Yi Yang, Ziyi Wang, Ruichen Wu
wiley   +1 more source

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