Results 61 to 70 of about 5,992 (256)

Placental crises: disruptive selection and maternal under‐investment as the foundations of mammalian placental evolution and dysfunction

Biological Reviews, EarlyView.
ABSTRACT Among the vertebrates, mammals are notable for the dominance of live birth and placental nutrition. The structural diversity of the mammalian placenta is remarkable, despite sharing a single common ancestor and conserved physiological functions.
Davis Laundon, Neil J. Gostling, Ian G. Reddin, Bram G. Sengers, Pascale Chavatte‐Palmer, Rohan M. Lewis   +5 more
wiley   +1 more source

Single‐cell sequencing reveals potential novel insights into appendage‐patterning and joint‐development in a spider

Developmental Dynamics, EarlyView.
Abstract Background Jointed appendages represent one of the key innovations of arthropods, and thus understanding the development and evolution of these structures is important for the understanding of the evolutionary success of Arthropoda. In this paper, we analyze a cell cluster that was identified in a previous single‐cell sequencing (SCS ...
Brenda I. Medina‐Jiménez, Graham E. Budd, Ralf Janssen   +2 more
wiley   +1 more source

Medullary bone in an Early Cretaceous enantiornithine bird and discussion regarding its identification in fossils

Nature Communications, 2018
Medullary bone is used by modern female birds as a calcium reservoir for eggshell production. Here, O’Connor and colleagues propose criteria for identifying medullary bone in fossils and report medullary bone from a Cretaceous enantiornithine bird fossil.
Jingmai O’Connor, Gregory M. Erickson, Mark Norell, Alida M. Bailleul, Han Hu, Zhonghe Zhou   +5 more
doaj   +1 more source

Ordinarius Professır Dr. Muzaffer Şenyürek-Chairman of the Division of Palaeoanthropology (Human Paleontology and Primatology)

Bulletin of the Mineral Research and Exploration, 1961
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openaire   +3 more sources

Effect of Fruit Maturation Stage on the Chemical Composition and Antioxidant and Cytotoxic Activities of Piper nigrum Essential Oil

Flavour and Fragrance Journal, EarlyView.
The essential oils of Piper nigrum show marked chemical and biological variation across fruit maturation stages. Ripe fruits yield oils with the strongest antioxidant and cytotoxic activities, demonstrating that maturation directly modulates volatile composition and enhances the bioactive potential of this aromatic species.
Marcio Marcelo da Siva Pessoa, Jorddy Neves Cruz, Ingryd Nayara de Farias Ramos, André Salim Khayat, Eloisa Helena de Aguiar Andrade, José de Arimatéia Rodrigues do Rego, Davi do Socorro Barros Brasil   +6 more
wiley   +1 more source

Cultivation and morphology of jujube (Ziziphus Jujuba Mill.) in the Qi River Basin of Northern China during the Neolithic Period

Scientific Reports
This transition from gathering to cultivation is a significant aspect of studying early agricultural practices. Fruit trees are an essential component of food resources and have played a vital role in both ancient and modern agricultural production ...
Yanpeng Li, Xinying Zhou, Keliang Zhao, Junchi Liu, Guanhan Chen, Yaping Zhang, Jiacheng Ma, Nan Sun, Xiaoqiang Li   +8 more
doaj   +1 more source

Holocene Vegetation Succession and Response to Climate Change on the South Bank of the Heilongjiang-Amur River, Mohe County, Northeast China

Advances in Meteorology, 2016
Pollen samples from peat sediments on the south bank of the Heilongjiang River in northern Northeast China (NE China) were analyzed to reconstruct the historical response of vegetation to climate change since 7800 cal yr BP.
Chao Zhao, Xiaoqiang Li, Xinying Zhou, Keliang Zhao, Qing Yang   +4 more
doaj   +1 more source

Perissodactyl diversities and responses to climate changes as reflected by dental homogeneity during the Cenozoic in Asia

Ecology and Evolution, 2020
Cenozoic mammal evolution and faunal turnover are considered to have been influenced and triggered by global climate change. Teeth of large terrestrial ungulates are reliable proxies to trace long‐term climatic changes due to their morphological and ...
Bin Bai, Jin Meng, Christine M. Janis, Zhao‐Qun Zhang, Yuan‐Qing Wang   +4 more
doaj   +1 more source

Smart Solutions for Sustainable Access and Technological Equity: The Effect of Energy Transition, Artificial Intelligence, and Digital Economy on Energy Poverty

Geological Journal, EarlyView.
ABSTRACT The integration of energy transition, artificial intelligence, and the digital economy represents a significant shift in the global effort to combat energy poverty and offers innovative tools and approaches to increase energy access, efficiency, and affordability for underserved populations. This study examines the impact of energy transition,
Abdulmuttalip Pilatin, Magdalena Radulescu, Hind Alofaysan, Abdulkadir Barut, Rena Huseynova   +4 more
wiley   +1 more source

Savanna ecosystems and mammalian adaptations in Mid-Miocene Northern China

Scientific Reports
The paleoenvironments and ecosystems of northern China during the Miocene (ca. 23–5.3 Ma) are complex topics, especially concerning the uplift of the Tibetan Plateau on the surrounding areas and the ecological adaptations of mammals as a consequence. Our
Chunxiao Li, Shi-Qi Wang, Yang Wang, Tao Deng, Jiao Ma, Bian Wang, Qigao Jiangzuo, Danhui Sun   +7 more
doaj   +1 more source