Results 41 to 50 of about 183,921 (351)

Linking PAHs concentration, risk to PAHs source shift in soil and water in epikarst spring systems, Southwest China

open access: yesEcotoxicology and Environmental Safety, 2023
A systematic assessment of the variations in the ecological risk of PAHs and the key emission sources controlling the variations is of great importance to human health and aquatic organisms. PAH concentrations, composition, source, and ecological risk in
Xue Qi   +8 more
doaj   +1 more source

Karsts

open access: yes, 2012
Collection edytem n°13 ; Les Gorges de l’Ardèche. Quelle pouvait être l’impression d’un Homme parcourant celles-ci il y a plus de 30 000ans ? Quel regard portait-il sur ces versants abrupts, ces roches calcaires aux formes spectaculaires et ses nombreuxporches et autres abris sous roche ?
Delannoy, Jean-Jacques   +2 more
openaire   +1 more source

Technical Note: Field experiences using UV/VIS sensors for high-resolution monitoring of nitrate in groundwater [PDF]

open access: yes, 2014
peer-reviewedTwo different in situ spectrophotometers are compared that were used in the field to determine nitrate-nitrogen (NO3-N) concentrations at two distinct spring discharge sites. One sensor was a double wavelength spectrophotometer (DWS) and the
Blum, P.   +8 more
core   +4 more sources

Injuries in deep time: interpreting competitive behaviours in extinct reptiles via palaeopathology

open access: yesBiological Reviews, EarlyView.
ABSTRACT For over a century, palaeopathology has been used as a tool for understanding evolution, disease in past communities and populations, and to interpret behaviour of extinct taxa. Physical traumas in particular have frequently been the justification for interpretations about aggressive and even competitive behaviours in extinct taxa.
Maximilian Scott   +3 more
wiley   +1 more source

Study on spatiotemporal evolution of rocky desertification in the pilot zone for sustainable development: A case study of Gongcheng county

open access: yesCarsologica Sinica
The karst area in Southwest China is an important region for the implementation of sustainable development strategies in China, as well as an area with extremely fragile ecological environment and concentrated distribution of rocky desertification. As a "
Chun TU   +7 more
doaj   +1 more source

Geomorphology of the Durmitor Mountains and surrounding plateau Jezerska Površ (Montenegro) [PDF]

open access: yes, 2014
The geomorphological map of the northeastern Durmitor Mountains and the plateau Jezerska Povrs. (1: 10,000, 47 km(2), Montenegro, Dinaric Alps) was prepared from an intensive fieldwork campaign and remote sensing analysis, and was compiled within a GIS ...
Annys, Klaas   +5 more
core   +3 more sources

Rapid Identification of New Psychoactive Substances in Letters by LA‐APCI‐MS

open access: yesDrug Testing and Analysis, EarlyView.
Laser ablation coupled to molecular mass spectrometry utilizing a modified atmospheric pressure chemical ionization source was used for the detection of synthetic cannabinoid receptor agonists in infused prison mail samples. ABSTRACT New psychoactive substances (NPS), especially synthetic cannabinoid receptor agonists (SCRA), are increasingly smuggled ...
Mark Wesner   +4 more
wiley   +1 more source

Directional Deep Brain Stimulation for Parkinson's Disease: Results of an International Crossover Study With Randomized, Double‐Blind Primary Endpoint

open access: yesNeuromodulation: Technology at the Neural Interface, EarlyView., 2021
Abstract Objective Published reports on directional deep brain stimulation (DBS) have been limited to small, single‐center investigations. Therapeutic window (TW) is used to describe the range of stimulation amplitudes achieving symptom relief without side effects.
Alfons Schnitzler   +24 more
wiley   +1 more source

Study on the delimitation of affected zone of geological environment for karst underground engineering:taking Longgang district, Shenzhen City as an example

open access: yesCarsologica Sinica, 2022
The construction of a large number of urban underground rail transit and urban renewal projects has intensified the urban karst geological disasters in our country.
Shengtang WU   +3 more
doaj   +1 more source

Serrano v. Priest’s Inputs and Outputs [PDF]

open access: yes, 1974
A report on the litigation strategies and cost-quality issues involved in the Serrano V Priest case in which the California Supreme Court ruled that spending for a child\u27s publicly financed education should not be a function of wealth.
Karst, Kenneth L.
core   +1 more source

Home - About - Disclaimer - Privacy