Results 81 to 90 of about 7,756 (330)
Humans are not unique: difficult birth is common in placental mammals
Biological Reviews, EarlyView.ABSTRACT Human childbirth is widely presumed to be uniquely difficult and dangerous compared to birth in other mammals. Tight fetopelvic proportions can result in obstructed labour and contribute to high rates of maternal and neonatal mortality. Ideas summarised under the ‘obstetrical dilemma’ have contributed to this assumption by explaining difficult
Nicole D. S. Grunstra
wiley +1 more source
Frontiers in Conservation ScienceNature-based tourism, such as whale watching and swimming with whale sharks, is rapidly growing worldwide. Although there is no clear classification, whale watching is often referred to as ecotourism or sustainable tourism.
María Laura Marcías +5 more
doaj +1 more source
Soundings: the Newsletter of the Monterey Bay Chapter of the American Cetacean Society. 2004 [PDF]
, 2004 (PDF contains 92 pages.
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Utterance evolution: the road to generative, combinatorial communicators
Biological Reviews, EarlyView.ABSTRACT Language has long been considered uniquely complex in the animal kingdom; however, animal research over the last decade has begun to challenge some long‐standing premises about exactly which language capacities are uniquely human. The task of resolving why and how complex communication systems evolve, particularly human language, has ...
Catherine Crockford +2 more
wiley +1 more source
ISER Working Paper 2009.1 [PDF]
, 2009 In this report we calculate the economic importance of nature-based tourism in Southeast Alaska as measured by business revenue. Our estimates are based on field research conducted during 2005, 2006 and 2007.
Colt, Steve +3 more
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Clinical Advances in Periodontics, EarlyView.Abstract Background Loss of the interdental papilla compromises esthetics, speech, and hygiene, significantly affecting quality of life and psychological well‐being. Reconstruction has long been considered unpredictable, particularly in Cairo RT3 cases with advanced interproximal bone loss.
Katsuhiko Akiyama
wiley +1 more source
Whale-watching and Herring Fishing: Joint or Independent Production? [PDF]
The effects of "localized depletion" of a pelagic fishery (herring) on a non-extractive marine activity (tourism) are investigated. Proponents of the localized depletion theory claim that intense fishing effort can lead to areas that are unsuitable for ...
Lee, Min-Yang A.
core +1 more source
Soundings: the Newsletter of the Monterey Bay Chapter of the American Cetacean Society. 2006 [PDF]
, 2006 (PDF contains 88 pages.
core
Deep Underground Science and Engineering, EarlyView.The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li +4 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.Based on the 90 datasets, ERT and four optimization algorithms were used to build four hybrid models to predict the UCS of the backfill body. The SMA‐ERT model was the most effective model, and it can reliably guide the design of the backfill ratio parameters. Abstract This study analyzed the feasibility of using titanium (Ti) tailings as a backfilling
Weijun Liu, Zida Liu, Zhixiang Liu
wiley +1 more source