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ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57

Unique Epigenetic Features of Ribosomal RNA Genes (rDNA) in Early Diverging Plants (Bryophytes)

Introduction: In plants, the multicopy genes encoding ribosomal RNA (rDNA) typically exhibit heterochromatic features and high level of DNA methylation. Here, we explored rDNA methylation in early diverging land plants from Bryophyta (15 species, 14 families) and Marchantiophyta (4 species, 4 families). ...

Evacuation system

An inflatable evacuation slide (1) for evacuating people from a first structure (3) to a second structure (1) is disclosed. The slide comprises: at least three longitudinal beams, including two lateral lower beams (11) and an upper beam (9), spaced apart transversally over their length and substantially ...

Fabric having a cut-resistant coating comprising para-aramid particles

A fabric comprising a cut-resistant polymeric coating including by weight 1 to 10 percent para-aramid particles, the particles having an average particle size of 20 to 500 microns.

Naval platform provided with at least one hull comprising steerable thrusters

This naval platform (1) of the type including at least one hull (2) equipped with steerable thrusters (3, 4, 5, 6) distributed on the latter and means (7, 8, 9, 10, 11) for controlling the orientation and the actuation of the latter, is characterized in that the control means comprise means (12) for ...

Environmentally protected switch and device using same

An environmentally protected switch and water activated device using the switch is disclosed. The switch comprises an elongate housing having an open end and divided into a pair of chambers and into which a probe is inserted. When water infiltrates the housing an electrical circuit is completed between ...

Opening access to the black box: The need for reporting on the global phosphorus supply chain

Phosphorus (P) is an essential macronutrient in agriculture; however, lack of reporting makes its supply chain a black box. By using literature synthesis on the P challenge, we identify four areas where the reporting process is problematic: P reserves and resources; P losses along the supply chain; ...

Sea Turtle Population Genomic Discovery: Global and Locus-Specific Signatures of Polymorphism, Selection, and Adaptive Potential

Abstract In the era of genomics, single-nucleotide polymorphisms (SNPs) have become a preferred molecular marker to study signatures of selection and population structure and to enable improved population monitoring and conservation of vulnerable populations. We apply a SNP calling pipeline to assess ...

The effect of a multi-target protocol on cetacean detection and abundance estimation in aerial surveys

A double-platform protocol was implemented in the Bay of Biscay and English Channel during the SCANS-III survey (2016). Two observation platforms using different protocols were operating on board a single aircraft: the reference platform (Scans), targeting cetaceans, and the ‘Megafauna’ platform, recording ...

Population genomics reveals possible genetic evidence for parallel evolution of Sebastiscus marmoratus in the northwestern Pacific Ocean

Understanding patterns of population diversity and structuring among marine populations is of great importance for evolutionary biology, and can also directly inform fisheries management and conservation. In this study, genotyping-by-sequencing was used to assess population genetic diversity and connectivity ...

Spatiotemporal distribution of juvenile chum salmon in Otsuchi Bay, Iwate, Japan, inferred from environmental DNA

To understand the ecology of juvenile chum salmon during early marine life after their downstream migration, we developed a quantitative PCR-based environmental DNA (eDNA) method specific for chum salmon and investigated the spatiotemporal distribution of eDNA in Otsuchi Bay, Iwate, Japan. Indoor aquarium ...

Impact assessment of barge trafficking on phytoplankton abundance and Chl a concentration, in River Ganga, India

Impact of barge movement on phytoplankton abundance and biomass was assessed in the lower stretch of river Ganga, popularly known as Bhagirathi-Hooghly river, during April 2016 to March, 2017. Based on the magnitude of tide, intensity of shipping and boating activities, the stretch from Baranagar to ...

Stochastic perturbations and fisheries management

As most natural resources, fisheries are affected by random disturbances. The evolution of such resources may be modelled by a succession of deterministic process and random perturbations on biomass and/or growth rate at random times. We analyze the impact of the characteristics of the perturbations ...

Dataset on body weight, carapace width increment and growth band count of mud crabs, Scylla olivacea

The present paper contains two datasets; i) the growth band count (GBC) of mud crab, Scylla olivacea collected from Setiu Wetlands, Terengganu coastal water, East coast of Peninsular Malaysia and ii) the increment sizes of body weight (BW) and carapace width (CW) of immature S. olivace after molting. ...

Assembly for carrying out an operation on a net

There is described an assembly (1) for carrying out an operation on a net (2), the assembly (1) comprising an operation system (5), wherein that the assembly (1) further comprises: - a first movable unit (3) for being arranged on a first side (21) of the net (2); and - a second movable unit (4) for ...

High heat monomers and methods of use thereof

High heat monomer compounds, methods for preparing compounds, and compositions derived from the compounds are provided. Also provided are materials and articles derived from the compounds.

Culture of attached and suspended Rhodopseudomonas faecalis in the presence of decomposing fish feed

Abstract An approach to culturing attached and suspended forms of Rhodopseudomonas faecalis by using compound fish feed with tap water in transparent containers is reported in this study. The ratio of fish feed to tap water was 14.3–50.8 g/L, and no other inoculum or substances were added during the ...

Differences in blastomere totipotency in 2-cell mouse embryos are a maternal trait mediated by asymmetric mRNA distribution

Abstract It is widely held that the first two blastomeres of mammalian embryos are equally totipotent and that this totipotency belongs to the group of regulative properties. However, this interpretation neglects an important aspect: evidence only came from successful monozygotic twins which can speak ...

Genome-Wide Patterns of Population Structure and Linkage Disequilibrium in Farmed Nile Tilapia (Oreochromis niloticus)

Nile tilapia (Oreochromis niloticus) is one of the most produced farmed fish in the world and represents an important source of protein for human consumption. Farmed Nile tilapia populations are increasingly based on genetically improved stocks, which have been established from admixed populations. ...

Neurobiological and behavioural responses of cleaning mutualisms to ocean warming and acidification

Cleaning interactions are textbook examples of mutualisms. On coral reefs, most fishes engage in cooperative interactions with cleaners fishes, where they benefit from ectoparasite reduction and ultimately stress relief. Furthermore, such interactions elicit beneficial effects on clients’ ecophysiology. ...

Assessing the effectiveness of an electrical stunning and chilling protocol for the slaughter of Atlantic mackerel (Scomber scombrus)

Inducing unconsciousness in fish using electrical stunning prior to slaughter may improve fish welfare and fillet quality if such practises can be disseminated into wild capture fisheries. The objectives of this study were to: 1) evaluate if an established slaughter protocol consisting of dry electrical ...

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di: 1926

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