Results 101 to 110 of about 155,947 (296)

Occurrence of 'Antrobathynella stammeri' (Jakobi, 1954) (Crustacea: Syncarida: Bathynellidae) in the hyporheic zones of two English karst rivers [PDF]

open access: yes, 2008
This paper reports the first records of Antrobathynella stammeri in the British Isles since 1985. Numerous individuals were observed in hyporheic water extracted from the River Skirfare (Yorkshire, UK), whilst, in an independent study, a single confirmed
Dunscombe, MP   +2 more
core  

A Student-centered Regional Planning Group Activity for Non-science Majors [PDF]

open access: yes, 2004
NOTE: This is a large file, 81.4 mb in size! This article describes the use of an authentic regional planning public workshop activity which was modified and used to introduce the Earth surface portion of an Earth Science lecture course for undergraduate
Mark Abolins
core   +1 more source

Mapping Palaeolithic Imprints: Spatial Analysis of Hand Stencils in El Castillo Cave (Spain) Through Geomatic Techniques

open access: yesArchaeometry, EarlyView.
ABSTRACT We present the application of a new quantitative approach to space study in Palaeolithic cave art. Using GIS, we analysed the distribution and position of hand stencils in El Castillo cave to track the gestures and behaviours of Palaeolithic societies.
Olga Spaey   +7 more
wiley   +1 more source

Key technical points for integrated surface water-groundwater surveys and assessment in karst basins of South China

open access: yesCarsologica Sinica
This study focuses on the karst region of South China, centered in Guizhou Province and encompassing Yunnan, Guangxi, Hunan, Hubei, Sichuan, Chongqing, and Guangdong.
Changsong ZHOU   +14 more
doaj   +1 more source

Subterranean glacial spillways: an example from the karst of South Wales, UK [PDF]

open access: yes, 2013
Many karst areas in the UK have been glaciated one or more times during the last 0.5 Ma, yet there are few documented examples of caves in these regions being affected by glacial processes other than erosion.
Farrant, Andrew R.   +2 more
core  

Droughts and human impact in the ancient Uaymil region of the Maya lowlands inferred from a 2800‐year sedimentary archive at Lake Kaná, Mexico

open access: yesBoreas, EarlyView.
The relationship between the climate and societal transformation in Maya lowlands has long been debated, particularly the role of drought in shaping the civilization trajectory during the Classic Period. A high‐resolution, multi‐proxy, geochemical record from Lake Kaná, located in the underexplored Uaymil region of the Yucatán Peninsula in Mexico ...
Haydar B. Martinez‐Dyrzo   +5 more
wiley   +1 more source

Groundwater Contamination in Karst Areas of Southwestern China and Recommended Countermeasures

open access: yesActa Carsologica, 2010
Approximately 33% of China is karstic. The most extensive karst areas are in southwestern China and cover approximate­ly 540,000 km2. Southwestern China hosts some of the most typical karst landforms in the world and has important high-quality karst ...
Fang Guo, Daoxian Yuan, Zhengjiao Qin
doaj   +1 more source

Preclinical models for evaluating psychedelics in the treatment of major depressive disorder

open access: yesBritish Journal of Pharmacology, EarlyView.
Psychedelic drugs have seen a resurgence in interest as a next generation of psychiatric medicines with potential as rapid‐acting antidepressants (RAADs). Despite promising early clinical trials, the mechanisms which underlie the effects of psychedelics are poorly understood.
Laith Alexander   +5 more
wiley   +1 more source

Zoning of ecological treatment in typical karst areas based on ecosystem vulnerability assessment

open access: yesCarsologica Sinica
Guohua Demonstration Zone for Ecological Restoration of Desertification (hereinafter referred to as Guohua Demonstration Zone) is located in Guohua town, Pingguo City, Guangxi, with a total area of 30 km2.
Zhaoxin HU   +4 more
doaj   +1 more source

Data on the terrestrial Isopoda fauna of the Alsó-hegy, Aggtelek National Park, Hungary [PDF]

open access: yes, 2008
Field surveys in dolines of Alsó-hegy, Aggtelek Karst (Hungary) yielded 10 terrestrial isopod species. Despite of the relatively low species richness, we would like to emphasize the high naturalness of the area indicated by the presence of endemic and
Farkas, Roland   +7 more
core  

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