The Relationship Between Copper Speciation and Toxicity for Larvae of the Blue Mussel Mytilus edulis: Regulatory Implications and Determination of Water Effect Ratios

2005 ◽  
Author(s):  
James W. Moffett
Keyword(s):  
Mytilus Edulis ◽  
Blue Mussel ◽  
Water Effect ◽  
Copper Speciation ◽  
The Relationship

Solid-State NMR Structure Determination of Whole Anchoring Threads from the Blue Mussel Mytilus edulis

2012 ◽  
Vol 14 (1) ◽  
pp. 132-141 ◽  
Author(s):  
Alexandre A. Arnold ◽  
Frédéric Byette ◽  
Marc-Olivier Séguin-Heine ◽  
André LeBlanc ◽  
Lekha Sleno ◽  
...  
Keyword(s):  
Solid State ◽  
Mytilus Edulis ◽  
Structure Determination ◽  
Solid State Nmr ◽  
Blue Mussel ◽  
Nmr Structure ◽  
Nmr Structure Determination

scholarly journals Modeling the Metabolic Profile of Mytilus Edulis Reveals Molecular Signatures Linked to Gonadal Development, Sex and Environmental Site

2021 ◽  
Author(s):  
Jaanika Kronberg ◽  
Jonathan Byrne ◽  
Jeroen Jansen ◽  
Philipp Antczak ◽  
Adam Hines ◽  
...  
Keyword(s):  
Mytilus Edulis ◽  
Blue Mussel ◽  
Biological Effects ◽  
Environmental Parameters ◽  
Aquatic Organisms ◽  
Gonadal Development ◽  
Bivalve Molluscs ◽  
Physiological Indicators ◽  
Work Supports ◽  
The Relationship

Abstract The monitoring of anthropogenic chemicals in the aquatic environment including their potential effects on aquatic organisms, is important for protecting life under water, a key sustainable development goal. In parallel with monitoring the concentrations of chemicals of concern, sentinel species are often used to investigate the biological effects of contaminants. Among these, bivalve molluscs such as mussels are filter-feeding and sessile, hence an excellent model system for measuring localized pollution.This study investigates the relationship between the metabolic state of the blue mussel (Mytilus edulis) and its physiology in different environments. We developed a computational model based on a reference site (relatively unpolluted) and integrated seasonal dynamics of metabolite relative concentrations with key physiological indicators and environmental parameters. The analysis of the model revealed that changes in metabolite levels during an annual cycle are influenced by water temperature and are linked to gonadal development. This work supports the importance of data-driven biology and its potential in environmental monitoring.

scholarly journals Drag on Nets Fouled With Blue Mussel (Mytilus Edulis) and Sugar Kelp (Saccharina Latissima) and Parameterization of Fouling

2017 ◽  
Author(s):  
Lars C. Gansel ◽  
Per Christian Endresen ◽  
Kristine Braaten Steinhovden ◽  
Stine Wiborg Dahle ◽  
Eirik Svendsen ◽  
...  
Keyword(s):  
Mytilus Edulis ◽  
Structural Integrity ◽  
Blue Mussel ◽  
Numerical Models ◽  
Flow Speed ◽  
Saccharina Latissima ◽  
Detailed Knowledge ◽  
Fish Welfare ◽  
Fish Cages ◽  
The Relationship

Biofouling is a serious problem in marine finfish aquaculture with a number of negative impacts. Marine growth obstructs net openings, thereby reducing water exchange through the net and affecting fish welfare and health, as well as the spreading of dissolved nutrients, particles and pathogens. Furthermore, additional water blockage leads to increased hydrodynamic forces on fish cages, which potentially threaten the structural integrity of the fish farm. However, detailed knowledge about the effects of biofouling on the flow past, and the resulting forces on fish cages, is limited and systematic investigations of the effects of different types of fouling have been called for. This study investigates the effects of different amounts and sizes of two important fouling organisms in Norwegian aquaculture, blue mussel (Mytilus edulis) and kelp (Saccharina latissima) on the drag on net panels. Drag forces on a number of clean and fouled nets were measured in a flume tank at a flow speed of 0.1 m/s. Net solidity was calculated from images acquired of all nets in the current. The relationship between net solidity and drag was then found for clean nets and for each type of fouling, and biofouling was parameterized by comparing clean and fouled net results: for a given fouled net, a clean net can be found that experiences the same drag. The latter can then be used in numerical models to estimate the effect of fouling on net drag. That means existing models can be used to model the drag effect of fouling. This study found a solidity increase due to mussel and kelp fouling to affect drag roughly at the same rate as an increase in clean net solidity at a flow speed of 0.1 ms−1 and within the tested fouling size range for two net types. Therefore, existing models, describing the relationship between net solidity and drag, can be used directly or with minor alterations (especially at high solidities) to estimate effects of additional mussel and kelp fouling on drag. In contrast, wet weight seems to be unsuitable as a measure to estimate drag on nets fouled with seaweed or mussels. It should be noted that these findings are only valid under similar conditions, and that other fouling types and sizes, as well as test parameters and tank size can affect the relationship between solidity and drag.

scholarly journals Simultaneous Determination of Organochlorine Herbicides and Fungicides in Blue Mussel (Mytilus edulis) by Gas Chromatography

1986 ◽  
Vol 27 (6) ◽  
pp. 641-648_1 ◽  
Author(s):  
Yasuyuki MURAKAMI ◽  
Hiroshi MURATA ◽  
Hisashi MATSUMOTO ◽  
Ryoichi TANAKA ◽  
Hiroyuki NAKAZAWA ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Simultaneous Determination ◽  
Mytilus Edulis ◽  
Blue Mussel

scholarly journals Modeling the metabolic profile of Mytilus edulis reveals molecular signatures linked to gonadal development, sex and environmental site

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jaanika Kronberg ◽  
Jonathan J. Byrne ◽  
Jeroen Jansen ◽  
Philipp Antczak ◽  
Adam Hines ◽  
...  
Keyword(s):  
Mytilus Edulis ◽  
Blue Mussel ◽  
Biological Effects ◽  
Environmental Parameters ◽  
Aquatic Organisms ◽  
Gonadal Development ◽  
Bivalve Molluscs ◽  
Physiological Indicators ◽  
Work Supports ◽  
The Relationship

AbstractThe monitoring of anthropogenic chemicals in the aquatic environment including their potential effects on aquatic organisms, is important for protecting life under water, a key sustainable development goal. In parallel with monitoring the concentrations of chemicals of concern, sentinel species are often used to investigate the biological effects of contaminants. Among these, bivalve molluscs such as mussels are filter-feeding and sessile, hence an excellent model system for measuring localized pollution. This study investigates the relationship between the metabolic state of the blue mussel (Mytilus edulis) and its physiology in different environments. We developed a computational model based on a reference site (relatively unpolluted) and integrated seasonal dynamics of metabolite relative concentrations with key physiological indicators and environmental parameters. The analysis of the model revealed that changes in metabolite levels during an annual cycle are influenced by water temperature and are linked to gonadal development. This work supports the importance of data-driven biology and its potential in environmental monitoring.

Thromboplastin Related Differences in the Determination of International Normalised Ratio: A Cause for Concern?

1994 ◽  
Vol 72 (03) ◽  
pp. 426-429 ◽  
Author(s):  
S Kitchen ◽  
I D Walker ◽  
T A L Woods ◽  
F E Preston
Keyword(s):  
Patient Management ◽  
External Quality Assessment ◽  
Oral Anticoagulant Therapy ◽  
Warfarin Dosage ◽  
External Quality ◽  
External Quality Assessment Scheme ◽  
International Normalised Ratio ◽  
The Uk ◽  
The Relationship

SummaryWhen the International Normalised Ratio (INR) is used for control of oral anticoagulant therapy the same result should be obtained irrespective of the laboratory reagent used. However, in the UK National External Quality Assessment Scheme (NEQAS) for Blood Coagulation INRs determined using different reagents have been significantly different.For 18 NEQAS samples Manchester Reagent (MR) was associated with significantly lower INRs than those obtained using Diagen Activated (DA, p = 0.0004) or Instrumentation Laboratory PT-Fib HS (IL, p = 0.0001). Mean INRs for this group were 3.15, 3.61, and 3.65 for MR, DA, and IL respectively. For 61 fresh samples from warfarin-ised patients with INRs of greater than 3.0 the relationship between thromboplastins in respect of INR was similar to that observed for NEQAS data. Thus INRs obtained with MR were significantly lower than with DA or IL (p <0.0001). Mean INRs for this group were 4.01, 4.40, and 4.59 for MR, DA, and IL respectively.We conclude that the differences between INRs measured with the thromboplastins studied here are sufficiently great to influence patient management through warfarin dosage schedules, particularly in the upper therapeutic range of INR. There is clearly a need to address the issues responsible for the observed discrepancies.

Modern determinants of endometrium hyperplastic processes pathogenesis

2016 ◽  
pp. 137-142
Author(s):  
V.O. Benyuk ◽  
◽  
V.M. Goncharenko ◽  
T.R. Nykoniuk ◽  
◽  
...  
Keyword(s):  
Conservative Therapy ◽  
Solid Phase ◽  
Research Direction ◽  
Immunohistochemical Method ◽  
Results Of Treatment ◽  
Treatment And Prevention ◽  
Receptor Phenotype ◽  
The Relationship ◽  
Endometrial Proliferation

The objective: to еxplore the relationship between the activity of endometrial proliferation and the state of the local immune response in the uterus in the conditions berprestasi process. Patients and methods. Examined 228 women of reproductive and perimenopausal age with endometrial pathology using ultrasound and then performing hysteroresectoscopy. Determination of the concentrations of the cytokines IL-1, IL-2, IL-6 and TNF was performed by solid phase ELISA. Results. Found a trend that confirms the loss of sensitivity to hormones at the stage of malignancy of the endometrium and can be used as diagnostic determinants in determining the nature of intrauterine pathology and criterion of the effectiveness of conservative therapy. Conclusion. Improving etiopatogenetice approach to the therapy of hyperplastic proce.sses of endometrium with determination of receptor phenotype of the endometrium is a research direction in modern gynecology, which will help to improve the results of treatment and prevention of intrauterine pathology. Key words: endometrial hyperplasia,the receptors for progesterone and estrogen, immunohistochemical method.

Calculating the aerodynamics of vertical axis wind turbines

2012 ◽  
Vol 34 (3) ◽  
pp. 169-184 ◽  
Author(s):  
Hoang Thi Bich Ngoc
Keyword(s):  
Wind Turbine ◽  
Incidence Angle ◽  
Vertical Axis ◽  
Rotor Blades ◽  
Vertical Axis Wind Turbine ◽  
Horizontal Axis Wind Turbine ◽  
Velocity Triangle ◽  
Relationship Of ◽  
The Relationship

Vertical axis wind turbine technology has been applied last years, very long after horizontal axis wind turbine technology. Aerodynamic problems of vertical axis wind machines are discussible. An important problem is the determination of the incidence law in the interaction between wind and rotor blades. The focus of the work is to establish equations of the incidence depending on the blade azimuth, and to solve them. From these results, aerodynamic torques and power can be calculated. The incidence angle is a parameter of velocity triangle, and both the factors depend not only on the blade azimuth but also on the ratio of rotational speed and horizontal speed. The built computational program allows theoretically selecting the relationship of geometric parameters of wind turbine in accordance with requirements on power, wind speed and installation conditions.

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