Results 81 to 90 of about 37,361 (284)
Geological Journal, EarlyView.This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura +4 more
wiley +1 more source
Checklist of Molluscs in Nallavadu Lagoon, Puducherry, India
, 1970 The molluscs constitute a natural resource of sizable magnitude in many parts of the world. They are an age old group represented among the early fossils, a group of great diversity in size, distribution, habitat and utility.
A. Padmavathy, M. Anbarashan
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Geological Journal, EarlyView.In this study, we re‐examine the depositional architecture of the Erfoud limestone in Morocco. Introducing new biostratigraphic constraints from chitinozoan assemblages, we show that Katian to Hirnantian bryozoan‐pelmatozoan meadows reflect flooding events linked to a series of interglacial transgressions known to have occurred immediately prior to the
Philippe Razin +4 more
wiley +1 more source
Nanoplastics: Methods, Exposure and Effects on Domestic, Farm and Wild Animals
Journal of Applied Toxicology, EarlyView.ABSTRACT Nanoplastics (NPs) are synthetic polymer particles ranging in size from 1 nm to 1 μm that have been identified as a major concern for ecosystems and organisms due to their plethora of negative effects. The aim of this review is to provide a comprehensive overview of the knowledge relating to exposure and effects of NPs in domestic (i.e., farm ...
B. De Felice +8 more
wiley +1 more source
Marine ornamental molluscs [PDF]
, 2010 The molluscs recorded from the world range from 80,000 to 1,00,000, out of which 50,000 are gastropods, 15,000 bivalves, 500 polyplacophora, 400 cephalopods, 130 aplacophora and 5 monoplacophora. There are 31,463 marine, 8,765 fresh water and 24,503
Venkatesan, V
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The Minimal Nonplanar Strong Digraphs
Journal of Graph Theory, EarlyView.ABSTRACT Kuratowski's theorem says that the minimal (under subgraph containment) graphs that are not planar are the subdivisions of K 5 ${K}_{5}$ and of K 3 , 3 ${K}_{3,3}$. Here we study the minimal (under subdigraph containment) strongly‐connected digraphs that are not planar.
Stephen Bartell, Paul Seymour
wiley +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT Stable isotope analyses of freshwater mollusc carbonate can record environmental conditions at the time of mineralisation, yet this technique remains underused in British Middle Pleistocene fluvial sequences, despite the abundance of fossil shell material in these deposits.
Jennifer E. Sherriff +4 more
wiley +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT Glacial/interglacial climate cycles since marine isotope stage (MIS) 12 influenced the discontinuous and 73 m‐long sediment record from the volcanic crater of Rodderberg in the East Eifel Volcanic Field, Germany. High‐resolution grain size and geochemical data have been valued by numerical dating techniques (radiocarbon and luminescence dating,
Bernd Zolitschka +4 more
wiley +1 more source
Aspects of eco-immunology in molluscs
Invertebrate Survival Journal, 2016 There is increasing interest in the international scientific community in eco-immunology, a relatively new discipline combining the knowledge from immunology, biology, ecology, physiology and biochemistry. The integrative approach of different scientific
V Matozzo
doaj
Macronutrient and micronutrient profiles of meat types: insights into human health and diet
Journal of the Science of Food and Agriculture, EarlyView.Abstract Despite considerable advances in global health and nutrition, emerging challenges such as population growth, climate change, and limited natural resources continue to threaten food security. Meat remains an essential component of the human diet, supplying high‐quality proteins, essential amino acids, lipids, vitamins, and minerals necessary ...
Özgül Anitaş +4 more
wiley +1 more source