Search results for "Fish"

Some new results on interest rate rules in EMU and in the US

2000

Abstract This paper offers two new results on interest rate rules. First, we show that the empirical evidence from 1970 onwards for the US is compatible with a Taylor rule when we consider the possibility of changes in the inflation target and in the real interest rate. Second, recursive estimates of a forward-looking version of the Taylor rule for EMU confirm an increasing weight for inflation in the area, possibly as a consequence of the EMS, and, furthermore, a convergence in the nineties to the German value observed for the whole period. This process has coincided with an important reduction in the deviation of inflation across EMU countries. The results also show that credibility probl…

PENGARUH MODAL USAHA DAN LAMA MELAUT, TERHADAP HARGA JUAL IKAN PADA PASAR TRADISIONAL SANGGENG MANOKWARI

2019

The purpose of this study was to measure the effect of venture capital (X1)  and the long time at sea /time work hours (X2) for the offer price of fish (Y) in the tradisional sanggeng market manokwari, with 73 respondents chosen randomly and consisted of sellers and buyers in the sanggeng market.
 Data  collection  methods are done through interviews,  (primary data)  with a questionnaire and then  carried out  a questionnaire  test  and test the quality of the data, and then analyzed uiple linear regression.
 The result of research simultan eously or statistically partial variables X1 (venture capital) and variable X2 (long sea)  significantly influence the higt selling price of …

A Small Forward-Looking Macroeconomic Model for EMU

2001

In this paper we estimate a small forward-looking macroeconomic model for EMU which allows us to analyze the transmission mechanism of the monetary policy implemented by the European Central Bank through an interest rate rule that stabilizes inflation and output. The estimation of this model, which comprises forward-looking versions of the IS and the Phillips curves as well as the interest rate rule, is conducted by GMM using quarterly data from 1986 to 2000. We find that this simple model matches the dynamic properties of the output gap, inflation and the interest rate in EMU quite accurately. We also perform several exercises that show the response of output, inflation and interest rates …

The potential of antimicrobial peptides isolated from freshwater crayfish species in new drug development: A review

2021

Abstract The much-publicised increased resistance of pathogenic bacteria to conventional antibiotics has focused research effort on the characterization of new antimicrobial drugs. In this context, antimicrobial peptides (AMPs) extracted from animals are considered a promising alternative to conventional antibiotics. In recent years, freshwater crayfish species have emerged as an important source of bioactive compounds. In fact, these invertebrates rely on an innate immune system based on cellular responses and on the production of important effectors in the haemolymph, such as AMPs, which are produced and stored in granules in haemocytes and released after stimulation. These effectors are …

Response of soil phosphatase activities to contamination with two types of tar oil.

2018

Tar oil is a complex mixture of hydrocarbon compounds obtained from high-temperature distillation of coal tar. It has been used for over 100 years from now to protect wood and has been applied to wood products, primary utility poles, and railroad ties by pressure methods. Composition of the tar oil depends on the source and typically consists of 85% polycyclic aromatic hydrocarbons (PAHs), 10% phenolic compounds, and 5% heterocyclic compounds. In this research, we performed the laboratory experiment to compare two types of tar oil: C and GX-Plus, and their effects on P-cycling enzymes (phosphatases) in sandy loam and loamy sand. Tar oil was applied to soil samples at the following doses: 2,…

Gas chromatographic determination of organochlorine pesticides; contamination of dicofol, fenson, and tetradifon in fish and natural waters of a wet …

1986

Toxicity of lindane, atrazine, and deltamethrin to early life stages of zebrafish (Brachydanio rerio).

1990

Fertilized eggs of zebrafish were exposed under flow-through conditions to several concentrations of the following pesticides: lindane 40, 80, 110, 130, and 150 micrograms/liter; atrazine 300, 1300, and 9100 micrograms/liter; deltamethrin 0.5, 0.8, and 1.2 micrograms/liter. Hatching, abnormalities in development (external deformations, edema, etc.), and mortality were recorded over a period of 35 days. At the end of the experiment, the body lengths of the fish were measured. Survival of juvenile fish after 35 days was reduced by increasing concentrations of all xenobiotics tested: lindane enhanced the mortality from 110 micrograms/liter and atrazine from 1300 micrograms/liter, and deltameth…

Control of freshwater fish louse Argulus coregoni: a step towards an integrated management strategy

2008

Harmful infections by ectoparasites of the genus Argulus occur repeatedly in freshwa- ter fish farming operations where the management has largely been ineffective. Preventative meth- ods and regular monitoring are rarely applied, so that chemical interventions become necessary. According to the Integrated Pest Management (IPM) approach, a sustainable management or control program for a parasite should be based on knowledge of the ecology of the parasite along with adop- tion of several prevention and control methods, the application of which is dependent upon the pre- vailing infection level. The application of multiple management tactics is especially important because parasites can devel…

Assessing human health risks from pesticide use in conventional and innovative cropping systems with the BROWSE model

2017

Background: Reducing the risks and impacts of pesticide use on human health and on the environment is one of the objectives of the European Commission Directive 2009/128/EC in the quest for a sustainable use of pesticides. This Directive, developed through European national plans such as Ecophyto plan in France, promotes the introduction of innovative cropping systems relying, for example, on integrated pest management. Risk assessment for human health of the overall pesticide use in these innovative systems is required before the introduction of those systems to avoid that an innovation becomes a new problem. Objectives: The objectives of this work were to assess and to compare (1) the hum…

Dinamiche competitive dei principali prodotti ittici in Italia: possibili strategie di intervento

2011

Over the last few years, the Italian fishery sector has showed a tendential reduction in the economic performance because of the contraction of the value of the product, as a result of the fall in the catches and in the production average prices of the main species, and of the growing operational costs. Therefore, the contraction of the National supply is balanced by the imports which, in terms of value in the reference period tested in the current study (2003/04 – 2007/08) have grown, causing a further burdening in the absolute value of the Italian trade balance. The outlined background is made further worse by the slowdown, in few years, in the rise in the fishery products consumptions, d…