Results 101 to 110 of about 16,139 (294)

Molecular Palaeontology Prospects From Exceptionally Preserved Eocene Brackish‐Water Bivalve Batissa sitakaraensis (Venerida: Corbiculidae) From Hokkaido, Japan

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, Kazuki Hirota, Hiroyuki Kagi, Takashi Matsubara, Takenori Sasaki   +4 more
wiley   +1 more source

Bryozoan‐Rich Carbonate Units of the Erfoud Area (SE Morocco) Record Latest Katian to Early Hirnantian Interglacial Intervals

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, Jean‐François Ghienne, Amira Meddour, Lorena Tessitore, Thijs R. A. Vandenbroucke   +4 more
wiley   +1 more source

Dietary Carotenoids and Cognitive Decline: A Longitudinal Study Among Chinese Middle‐Aged and Older Adults

Health Care Science, EarlyView.
Higher intake of dietary carotenoids was associated with slower cognitive decline. The strongest protective association was observed for moderate carotenoid intake. Total carotenoid intake exhibited a non‐linear association with cognitive decline. ABSTRACT Background This study examined the association between dietary intakes of total and specific ...
Liyan Huang, Ting Shen, Minyu Wu, Yiying Gong, Gulisiya Hailili, Ziping Wang, Caifeng Zhao, Wei Chen, Shuang Rong, Changzheng Yuan   +9 more
wiley   +1 more source

Comparative evaluation of specimen type and processing conditions for studying oyster microbiomes

Frontiers in Microbiology
Metagenomic sequencing is increasingly being employed to understand the assemblage and dynamics of the oyster microbiome. Specimen collection and processing steps can impact the resultant microbiome composition and introduce bias.
Esam Almuhaideb, Nur A. Hasan, Nur A. Hasan, Christopher Grim, Shah Manzur Rashed, Salina Parveen   +5 more
doaj   +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, M. Bertazzo, A. F. Tabaran, M. Parolini, R. P. Popa, A. Pintea, L. J. Spicer, A‐L. Nagy, F. Caloni   +8 more
wiley   +1 more source

The Single, the Whole, and the Pooled: Implications of Tissue Choice for Stable Isotope Analysis

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT In the exciting era of non‐invasive tissue sampling and data reuse via open access databases, it is increasingly challenging to ensure comparability of sample types for stable isotope analysis in ecology. According to the theoretical predictions about the changes in the stable isotope values between prey and consumers and tissue turnover rates,
Paride Balzani, Nadège Belouard, Lukáš Veselý, Antonín Kouba   +3 more
wiley   +1 more source

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

Ostracod faunal and geochemical evidence for the impact of Hoxnian (MIS 11c) sea levels in eastern England

Journal of Quaternary Science, EarlyView.
ABSTRACT Marine isotope substage 11c (~426–366 ka) is widely regarded as the most recent Pleistocene interglacial that is broadly analogous to the Holocene. The timing and magnitude of sea‐level changes during MIS 11 have been much debated, particularly concerning whether sea levels were significantly higher than during the Holocene. Empirical evidence
Tom S. White, Jonathan A. Holmes, David J. Horne, David R. Bridgland   +3 more
wiley   +1 more source

О НАХОДКЕ КОРБИКУЛЫ ЯПОНСКОЙ CORBICULA JAPONICA, PRIMЕ, 1864 В ОКРЕСТНОСТЯХ ГОРОДА ХАБАРОВСК

Cifra: Биологические науки
Корбикула японская – один из моллюсков, который обитает в нижнем течении реки Амур, где может образовывать плотные скопления с биомассой свыше 4 кг/м2. Известно, что основные скопления вид образует в Амурском лимане, о находках его у Хабаровска (1000 ...
Млынар Е.В., Гурская В.С.   +1 more
doaj   +1 more source

New mollusk research center opens

, 2004
A new Freshwater Mollusk Conservation Center allows graduate and undergraduate students at Virginia Tech's College of Natural Resources the opportunity to gain real research experience with freshwater mussels, as well as extend the college's research ...
Davis, Lynn
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