Results 51 to 60 of about 51,747 (166)

The family Lohmanniidae (Acari, Oribatida) II: two new Oribatid mites, Meristacarus perikopesis sp. n. from Costa Rica and Torpacarus eidikoterai sp. n. from Kenya

ZooKeys, 2018
Two very particular new species of the family Lohmanniidae were studied and described using optical and Scanning Electron Microscopy (SEM). Meristacarus perikopesis sp. n.
Nestor Fernandez, Pieter Theron, Sergio Leiva, Anine Jordaan   +3 more
doaj   +3 more sources

‘Hardcastle Hollows’ in loess landforms: Closed depressions in aeolian landscapes – in a geoheritage context

Open Geosciences, 2018
Loess landscapes sometimes contain isolated depressed areas, which often appear as lakes. The outline shape (and distribution) of these depressions could be controlled by random processes, particularly if the depressions are caused by loess ...
Fagg Roger, Smalley Ian
doaj   +1 more source

Negative exokarstic units as a basis for urban management: Yucatan Peninsula, Mexico

Discover Geoscience
The morphometric characterization of large-scale depressions, with high-resolution contributions and in urban contexts, has been carried out in the cities of Cozumel and Playa del Carmen.
Elsi Margarita May-Arias, Oscar Frausto-Martínez, José Francisco Rodríguez-Castillo, Lucinda Arroyo-Arcos   +3 more
doaj   +1 more source

A general method for searching customized depressions for large radio telescopes using digital elevation models

International Journal of Digital Earth
The construction of large-aperture radio telescopes, such as the Five-hundred-meter Aperture Spherical radio Telescope (FAST), demands careful site selection to balance performance, cost-efficiency, and electromagnetic shielding.
Shuhang Zhang, Zeyuan Cao, Wuming Zhang, Boqin Zhu, Bo Peng, Bo Ma, Yang Gao, Weipeng Lin, Jianbin Li   +8 more
doaj   +1 more source

Geomorphic information extraction and morphological characteristics analysis of karst peak-cluster depressions based on DEM

Carsologica Sinica
The largest area of karst in the world is distributed in China. In the karst area, the peak-cluster depression is regarded as one of the typical landforms.
Jiyong HE, Yichao TIAN, Qiang ZHANG, Donghua WANG, Yali ZHANG, Huijuan ZHOU   +5 more
doaj   +1 more source

Increased Hg Methylation Risks in Management-Induced Terrain Depressions in Forests with Organic-Matter-Rich Soils

Hydrology
Mercury (Hg) is a toxic contaminant that bioaccumulates in trophic chains in its organic form—methylmercury (MeHg). Hg methylation is driven by microorganisms in favourable conditions, stagnant water pools being among potential methylation hotspots.
Ivars Kļaviņš, Arta Bārdule, Zane Kļaviņa, Zane Lībiete   +3 more
doaj   +1 more source

Localized ST Elevations and PR Depressions in Systemic Lupus Erythematosus Pericarditis: An Unusual Case Presentation. [PDF]

Case Rep Med
Derector E, Gundlapally MS, Young NR.
europepmc   +1 more source

Ship wake-induced water column mixing and meter-scale seabed erosion in the Baltic Sea. [PDF]

Nat Commun
Geersen J, Feldens P, Rollwage L, Baumann LM, Krämer K, Westfeld P, Krastel S, Ahmerkamp S, Tauber F, von Deimling JS.   +9 more
europepmc   +1 more source

Evaluating the combined effect of a biomimetic organic matrix and bioinspired fluorapatite nanoparticles on initial caries lesions. [PDF]

RSC Adv
El-Sharkawy RM, Hanafy RA, Alghonemy WY, Abdelfatah OM, Salem EM.   +4 more
europepmc   +1 more source

Surface geoenvironments shape organic matter inputs in iron-ore caves of Carajás, southeastern Amazonia. [PDF]

PLoS One
Reis LS, Felix Guimarães JT, de Sá CYG, Bernard E, Ruiz Pessenda LC, Gastauer M, de Oliveira PE.   +6 more
europepmc   +1 more source