Results 41 to 50 of about 66,293 (247)

Study and application of length of horizontal wells in lens-like thin-layered bottom-water reservoirs

open access: yesYouqicang pingjia yu kaifa, 2018
The reasonable length of horizontal wells for lens-like thin-layered bottom-water reservoirs has been a question, and there were limited studies in the literature.
Wang Jingpeng   +4 more
doaj  

The Layout and Size of an Early Pre‐Pottery Neolithic B Small Settlement Revealed by Geophysical Prospection at Harbetsuvan Tepesi in Southeastern Anatolia

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT In Upper Mesopotamia, the transition from the Pre‐Pottery Neolithic A (PPNA) to Pre‐Pottery Neolithic B (PPNB) period, ca. 10 800–10 600 cal. BP, is marked by a series of changes in chipped stone industries, architectural forms, symbolic objects, regional distribution of settlements and long‐distance exchange networks among others.
Toshihiro Tada   +7 more
wiley   +1 more source

Opposing consensus science through scholarly practices: The role of claims maintenance

open access: yesJournal of the Association for Information Science and Technology, EarlyView.
Abstract This study examines how three US‐based communities who oppose consensus science produce and disseminate scholarly‐like artifacts: pro‐life activists, Young Earth Creationists, and Anthropogenic Climate Crisis skeptics. Prior research shows that industry‐ or church‐backed advocacy campaigns often generate claims supported by these communities ...
Irene V. Pasquetto   +3 more
wiley   +1 more source

Climatic and human influences on water resources in low atolls [PDF]

open access: yes, 2005
Low, small islands have water supply problems amongst the most critical in the world. Fresh groundwater, the major source of water in many atolls, is vulnerable to natural and human-induced changes.
Dray, Anne   +6 more
core  

Virtual geological outcrops - fieldwork and analysis made less exhaustive? [PDF]

open access: yes, 2004
For geologists studying outcrops in the field, there is an ever‐increasing need for the acquisition of accurate and comprehensive data, whatever their purpose.
Gardiner, AR, Pringle, JK, Westerman, R
core   +2 more sources

Increasing hydrocarbon production within the Krukenytsia depression of the Bolshe-Volytska zone of the Fore-Carpathian trough

open access: yesМінеральні ресурси України
Increasing hydrocarbon production in Ukraine requires the development and introduction of new promising methodological and technological means of petrophysical support and drilling support for exploration areas based on modern scientific and ...
D. D. Fedoryshyn   +4 more
doaj   +1 more source

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

Microstructure and growth of the lenses of schizochroal trilobite eyes [PDF]

open access: yes, 2013
Lenses within the schizochroal eyes of phacopine trilobites are made principally of calcite and characterisation of them using light microscopy and high-resolution electron imaging and diffraction has revealed an array of microstructural arrangements ...
Lee, Martin R.   +2 more
core   +1 more source

Development of a three‐dimensional hydrogeological model for the island of Norderney (Germany) using GemPy

open access: yesGeoscience Data Journal
Geological information is required to parameterize hydrogeological properties in groundwater flow models. Our aim was to provide a hydrogeological model for the island of Norderney, Northwest Germany and the surrounding Wadden Sea for this purpose.
Patrick Haehnel   +3 more
doaj   +1 more source

Early evolutionary history of the seed

open access: yesBiological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

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