Results 81 to 90 of about 67,347 (207)

Revision of nucleotide substitution rate in mtDNA control region of white sturgeon Acipenser transmontanus (Acipenseridae) [PDF]

open access: yesarXiv, 2017
The raw data from study of variation of D-loop mtDNA of white sturgeon Acipenser transmontanus (Mol. Biol. Evol. 1993. 10: 326-341) was re-analyzed. Re-calculated nucleotide substitution rate ({\mu}) was 0.782-0.939 x 10-7 substitutions/site/year/lineage, which was 1.4 times less than the estimate given in above-mentioned publication.
arxiv  

A novel, nonlethal liver biopsy procedure in an elasmobranch

open access: yesAustralian Veterinary Journal, EarlyView.
Tissue sampling is essential for understanding the biology, health and conservation status of elasmobranchs (i.e., sharks and rays). Historically, these samples have been obtained through recreational and commercial fisheries or via fisheries‐independent sampling, often involving lethal methods.
AM Hasenei, L Foyle, JL Rummer
wiley   +1 more source

Efficacy of dietary thiamine supplementation on growth performance, digestive enzymes, immunological responses, and antioxidant capacity of juvenile beluga (Huso huso)

open access: yesAquaculture Reports, 2023
The aim of the current study was to investigate the beneficial effects of dietary thiamine supplementation on physiological, immunological and antioxidant responses in juvenile beluga, Huso huso.
Mahmoud Mohseni   +4 more
doaj  

An investigation on the micropyle number in the ova of the strugeon species in Caspian Sea [PDF]

open access: yes, 1999
The micropyle number in the ova of sturgeon species from the South Caspian Sea was investigated. The study was conducted on female broodfishes of three species of sturgeon (Persian sturgeon Acipenser persicus, Stetates sturgeon A.
Amini, K.   +3 more
core  

Combinatorial Interpretations of some Boij-Söderberg Decompositions [PDF]

open access: yesarXiv, 2012
Boij-S\"oderberg theory shows that the Betti table of a graded module can be written as a liner combination of pure diagrams with integer coefficients. Using Ferrers hypergraphs and simplicial polytopes, we provide interpretations of these coefficients for ideals with a d-linear resolution, their quotient rings, and for Gorenstein rings whose ...
arxiv  

Corporate Sustainability Reporting: Shifting From Optional Due Diligence to Mandatory Duty

open access: yesBusiness Ethics, the Environment &Responsibility, EarlyView.
ABSTRACT This paper offers a critical overview of the newly proposed Corporate Sustainability Due Diligence Directive by the European Commission. The aim is to uncover potential opportunities, challenges, gaps, and contradictions, within the directive. We provide insights on how companies can effectively navigate through these issues and leverage upon ...
Emilene Leite   +2 more
wiley   +1 more source

First Insights into the Migration Route and Spatial Distribution of the Endangered Chinese Sturgeon (Acipenser sinensis) in the Yangtze River Estuary

open access: yesFishes
Chinese sturgeon (Acipenser sinensis) is an endangered species, and the Yangtze River Estuary is an important migration channel for this species. With the scale of Chinese sturgeon restocking along the Yangtze River gradually increasing, an increasing ...
Jiazhi Zhu   +3 more
doaj   +1 more source

Management applications of genetic structure of anadromous sturgeon populations in the Lower Danube River (LDR), Romania [PDF]

open access: yesScientific Annals of the Danube Delta Institute, 2013
During the last decades, the over-exploitation of sturgeon stocks for caviar production simultaneously with severe habitat deteriorations has led to drastic declines in the natural populations of the Danube River. As a result of (i) decrease of sturgeon
ONĂRĂ Dalia Florentina   +2 more
doaj   +1 more source

A preliminary study on phylogenetic relationship between five sturgeon species in the Iranian coastline of the Caspian Sea [PDF]

open access: yes, 2000
The phylogenetic relationship of five sturgeon species in the South Caspian Sea was investigated using mtDNA molecule. Sequence analysis of mtDNA D-loop region of five sturgeon species [Great sturgeon (Huso huso), Russian sturgeon (Acipenser ...
Beardmore, J.A.   +2 more
core  

Lifestyle Management in Menopause: A Systematic Review of Women With Premature Ovarian Insufficiency

open access: yesClinical Endocrinology, EarlyView.
ABSTRACT Objective Premature ovarian insufficiency (POI), the loss of ovarian function before age 40, increases the risk of cardiovascular disease, low bone mineral density, dementia and psychological distress. Lifestyle interventions reduce chronic disease risk in other populations and, with hormone therapy, may improve health outcomes in POI.
Ladan Yeganeh   +4 more
wiley   +1 more source

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