Results 121 to 130 of about 284,257 (387)

Sharpening our understanding of saber‐tooth biomechanics

The Anatomical Record, EarlyView.
Abstract Saber‐teeth are a striking example of convergent evolution in vertebrate predators, having evolved multiple times in mammals and their early ancestors. While there is broad consensus that saber‐toothed taxa employed a distinct biting strategy compared to conical‐toothed carnivores, like the lion, the precise mechanics and variability of this ...
Tahlia Pollock, Philip S. L. Anderson
wiley   +1 more source

Commentary: What's so interesting about sabertooths?

The Anatomical Record, EarlyView.
Abstract Sabertooth creatures are fascinating to the public and to scientists. This Special Issue on The Anatomy of Sabertooths starts with a discussion of what exactly a sabertooth is, continues with a couple of papers about other animals with extraordinarily long teeth, and then delves into analyses of fossil sabertoothed taxa—some of which are not ...
Adam Hartstone‐Rose, Tahlia I. Pollock, Lars Werdelin   +2 more
wiley   +1 more source

Differences in the environmental control of leaf senescence of four Quercus species coexisting in a Mediterranean environment

Forest Systems, 2015
Aims of study: Our aim is to check the effect of different environmental factors on the leaf senescence of four Quercus species with different leaf longevities, to help us better understand the implications of climate change on leaf demography.
Teresa del Río-García, Sonia Mediavilla, Fernando Silla, Alfonso Escudero   +3 more
doaj   +1 more source

Waste Management and Waste Disposal Detected by Combination of Analytical Methods: Late Bronze Age Březnice Settlement Site (South Bohemia)

Archaeological Prospection, EarlyView.
ABSTRACT Waste disposal processes and landfill management are crucial subjects in the field of settlement archaeology. Our study is focused on understanding the processes that are connected to the formation of the infills of settlement features and the recycling of the building materials (daub and wood) and waste management.
Tereza Šálková, Kristýna Budilová, Jaromír Kovárník, Antonín Majer, Jan Novák, Jaroslav Pavelka, Barbora Strouhalová, Libor Vobejda, Ondřej Šťastný, Martin Kuna, Ondřej Chvojka   +10 more
wiley   +1 more source

Vegetation of Doi Tung, Chiang Rai Province, Northern [PDF]

Maejo International Journal of Science and Technology, 2007
The climate of Doi Tung, Chiang Rai Province, is monsoonal with three distinctseasons, viz. cool-dry, hot-dry, and rainy. The elevation ranges from c. 350-1525m and mostof the bedrock is limestone and granite. Vegetation below c.
J. F. Maxwell
doaj  

Comparison of the Effect of Bioglass, Chitosan, and SDF Compounds on Remineralization of Primary Caries Lesions in Primary Teeth: An in vitro Study [PDF]

Journal of Dentistry
Statement of the Problem: Dental caries are among the most common oral and dental diseases affecting adults and children. To prevent caries, either the factors that cause caries should be reduced or the host resistance should be increased.
Razieh Meshki, Nazgol Ghahramani, Maryam Kouchak, Shirin Taravati   +3 more
doaj   +1 more source

The evolution of tree nursery offerings in Los Angeles County over the last 110 years [PDF]

, 2013
Interest in urban vegetation has increased dramatically. Urban trees are an important aspect of the urban environment but there is little known about the potential sources of those trees, change in tree species diversity over time and the factors leading
Gillespie, TW, Jenerette, GD, Pataki, DE, Pincetl, S, Prabhu, SS   +4 more
core   +1 more source

Semantic primitives and compositionality: An Annual Review of Information Science and Technology (ARIST) paper

Journal of the Association for Information Science and Technology, EarlyView.
Abstract The term semantic primitives refers to a set of basic, atomic concepts from which all other (compound) concepts are constructed. It presupposes the principle of compositionality—the idea that complex items or expressions can be formed by combining simpler constituents.
Birger Hjørland
wiley   +1 more source

Comparison of Primary Mandibular First Molar Crown Dimensions with Stainless Steel Crowns in a Sample of Iranian Children

Frontiers in Dentistry, 2019
Objectives: Attempts to retain primary teeth have led to introduction of materials and techniques for their preservation such as stainless steel crowns (SSCs).
Mehdi Shahrabi, Alireza Heidari, Sanaz Kamareh   +2 more
doaj   +1 more source

Uncertainties in classification system conversion and an analysis of inconsistencies in global land cover products [PDF]

, 2017
In this study, using the common classification systems of IGBP-17, IGBP-9, IPCC-5 and TC (vegetation, wetlands and others only), we studied spatial and areal inconsistencies in the three most recent multi-resource land cover products in a complex ...
De Maeyer, Philippe, Kurban, Alishir, Ma, Mingguo, Zhang, Miao   +3 more
core   +2 more sources