scholarly journals Yield-protective efficiency of biological and chemical potato protection against Phytophtora infestans (Mont.) de Bary

2018 ◽  
Vol 25 (1) ◽  
pp. 59-71
Author(s):  
Marek Kołodziejczyk
Keyword(s):  
Protective Efficiency

scholarly journals The efficacy of live and inactivated vaccines of Hong Kong influenza virus in an industrial community: A report to the Medical Research Council Committee on Influenza and other respiratory virus vaccines

1973 ◽  
Vol 71 (4) ◽  
pp. 641-647 ◽  
Author(s):  
D. Hobson ◽  
F. A. Baker ◽  
R. L. Curry ◽  
A. S. Beare ◽  
P. M. O. Massey
Keyword(s):  
Influenza Virus ◽  
Hong Kong ◽  
Medical Research ◽  
Research Council ◽  
Respiratory Virus ◽  
Medical Research Council ◽  
Influenza Viruses ◽  
Protective Efficiency ◽  
Industrial Community ◽  
Inactivated Vaccines

Intranasal vaccines of inactivated or living attentuated A2/Hong Kong influenza viruses were compared for clinical acceptability, serological effects and protective efficiency against natural epidemic influenza in a large industrial and clerical population.

scholarly journals Immunogenicity and Protective Efficiency in Mice of a Smallpox DNA Vaccine Candidate

2017 ◽  
Vol 08 (01) ◽  
Author(s):  
Na Young Kim ◽  
Dong Suk Chang ◽  
Gyeung Haeng Hur ◽  
Taek Yeol Lee ◽  
Jai Myung Yang ◽  
...  
Keyword(s):  
Dna Vaccine ◽  
Vaccine Candidate ◽  
Protective Efficiency

scholarly journals Testing the protective efficiency of personal respiratory protection devices in radiologically contaminated environments

2013 ◽  
Vol 28 (1) ◽  
pp. 102-107
Author(s):  
Dusan Rajic ◽  
Negovan Ivankovic ◽  
Natasa Ivankovic ◽  
Marina Ilic ◽  
Zeljko Senic ◽  
...  
Keyword(s):  
High Efficiency ◽  
Face Mask ◽  
Depleted Uranium ◽  
Test Substance ◽  
Respiratory Protection ◽  
Protective Efficiency ◽  
Submicron Scale ◽  
Protection Devices ◽  
Protective Mask

The use of ammunition primed with depleted uranium is one of the hallmarks of modern combat operations, resulting in environmental contamination by particles of depleted uranium and uranium oxide, scattered around in the form of submicron-scale aerosols. This paper examined the protective effectiveness of the Serbian military's M3 protective face mask in relation to the presence of airborne depleted uranium and its by-products. Sodium chloride in solid aerosol form was used as a test substance and adequate physical simulator of such radioactive aerosols because its granulometric (particle) size distribution met the requirements of suitability as a simulator. Determination of aerosol concentration was carried out by flame photometry method, whilst granulometric distribution was determined by an electric particles analyzer. It was established that the total internal leakage of the M3 protective mask was as much a function of the penetration of particles through the combined M3 filter as of the leaks along the fitting line of the user's face mask and the inhalation valve. In terms of its protective effect against aerosols of depleted uranium and associated oxides, the Serbian M3 protective mask was determined to be of high efficiency and physiological suitability.

scholarly journals Analysis and Prospects of Using Recombinant Vaccinia Virus MVA Strain as a Vector in the Development of the Vaccines against Human and Simian Immunodeficiency Virus Diseases

2019 ◽  
pp. 37-44
Author(s):  
L. F. Stovba ◽  
V. T. Krotkov ◽  
D. I. Paveli’ev ◽  
S. A. Mel’nikov ◽  
V. N. Lebedev ◽  
...  
Keyword(s):  
Immune Response ◽  
Simian Immunodeficiency Virus ◽  
Structural Changes ◽  
Rhesus Macaques ◽  
Laboratory Animals ◽  
Cell Immune Response ◽  
Effective Vaccine ◽  
Protective Efficiency ◽  
Immunodeficiency Virus ◽  
Immunodominant Antigens

The review presents the results of preclinical use of vector vaccines against human immunodeficiency virus (HIV) disease and simian immunodeficiency virus (SIV) disease. Application of antiretroviral therapy exclusively is insufficient for elimination of HIV from patient’s body. This dictates the need for an effective vaccine which will reduce the number of new cases of the disease and reduce the risk of virus transmission. Current practice of medicinal product development showed the effectiveness of heterologous prime-boost regimens for the induction of expressed immune response in laboratory animals. Various vector constructs were used as priming vaccines: DNA vaccines, Bacille Calmette-Guerin vaccine, chimpanzee adenovirus, vesicular stomatitis virus, alphavirus repli-clone. Booster vaccine was represented by recombinant MVA strain. In all vector vaccines, different genes of immunodominant antigens of HIV and SIV agents were inserted. On rhesus macaques, murine, rabbit models, it was demonstrated that deployed vaccination schemes were safe and induced immune response. Because membrane HIV protein is highly variable, strongly glycoziled and subjected to structural changes during receptor binding, it cannot be viewed as a target for induction of virus neutralized antibodies. Therefore, we mainly studied the cell immune response that was presented by poly-functional CD8+ T-cells. However, some recent researches are aimed at such modification of envelope HIV immunogene that would provide for virus neutralizing antibody induction. The study of protective efficiency of the induced immunity in rhesus macaques, immunized with recombinant vectors expressing SIV’ s immunodominant antigens, in case of subsequent inoculation with virulent SIV strain has revealed that all monkeys developed illness. Assuming that the constructions with SIV’ s immunodominant antigens under protective efficiency testing on rhesus macaques imitate AIDS in humans, it seems that vaccines, developed up-to-date, will not be effective for collective immunity formation against AIDS. Therefore, the search for novel combinations of expressed immunodominant antigens for the inclusion into the composition of priming and booster vaccines remains a priority area at present time.

scholarly journals Increase fish protective efficiency constructions of meliorative water intake

2020 ◽  
pp. 69-73
Author(s):  
Svetlana Mikhailovna Dragunova ◽  
Yevgeniy Vladimirovich, Кuznetsov ◽  
Anna Yevgenievna Khadzhidi
Keyword(s):  
Physical Model ◽  
Water Intake ◽  
Flow Rate ◽  
Juvenile Fish ◽  
Protective Efficiency ◽  
Irrigation Systems ◽  
Relative Flow Rate ◽  
Reclamation System ◽  
Relative Flow ◽  
Fish Protection

The article solves the problem of increasing the level of protection of juvenile fish to a standard indicator by the modernization of individual elements of fish protection of ameliorative water intake of irrigation systems. The design of an integrated fish-protecting structure with a logging boom adapted to hydrology and the rhythm of migration of juvenile fish from irrigation sources has been proposed. The results of studies on a physical model, taking into account the costs of the reclamation system, show an increase in the efficiency of the combined fish protection structure with a harbor for reclamation water intakes in the range of 78,5–84,0 %, depending on the relative flow rate on the shelf of the sanctuary.

scholarly journals Synthesis, Characterization and Corrosion Protective Efficiency of 2[2-Oxo-phenyl hydrazinyl ethyl] benzamide on Mild Steel in Sulphuric Acid Medium

2010 ◽  
Vol 7 (2) ◽  
pp. 331-340
Author(s):  
Rinki Goel ◽  
Weqar A. Siddiqi ◽  
V. M. Chaubey ◽  
Bahar Ahmed
Keyword(s):  
Mild Steel ◽  
Acid Medium ◽  
Electrochemical Impedance ◽  
Protective Efficiency ◽  
Inhibitor Molecule ◽  
Protection Efficiency ◽  
Langmuir Isotherm Model ◽  
Eis Measurements ◽  
Increasing Temperature ◽  
Good Agreement

2[2-Oxo-phenyl hydrazinyl ether] benzamide (2BA) was synthesized, characterized and tested effective for corrosion inhibition of mild steel in 1 N H2SO4solution using galvanodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. Polarization resistances calculated from the EIS measurements are in good agreement with those obtained from alternating current (AC) polarization measurements. The mild steel samples were also analyzed by Scanning Electron Microscopy (SEM). The result showed that 2BA is an excellent inhibitor for mild steel in acid medium. The inhibition was assumed to occurviaadsorption of the inhibitor molecule on the metal surface. In the 303-323K temperature range, the 2BA adsorption follows Langmuir isotherm model. The protection efficiency increases with increasing the inhibitor concentration in the range of 250-1000 ppm but slightly decreases with increasing temperature.

A flagellin-adjuvanted PED subunit vaccine improved protective efficiency against PEDV variant challenge in pigs

Vaccine ◽  
2018 ◽  
Vol 36 (29) ◽  
pp. 4228-4235 ◽  
Author(s):  
Qianniu Li ◽  
Zhichao Xu ◽  
Tingting Wu ◽  
Ouyang Peng ◽  
Licheng Huang ◽  
...  
Keyword(s):  
Subunit Vaccine ◽  
Protective Efficiency

Corrosion inhibition of AA3003 aluminum alloy by self-assembled layers of myristic acid

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
María V. Puc-Oxté ◽  
Máximo A. Pech-Canul
Keyword(s):  
Photoelectron Spectroscopy ◽  
Myristic Acid ◽  
Electrochemical Techniques ◽  
Aluminum Surface ◽  
Protective Efficiency ◽  
Water Contact ◽  
Protection Efficiency ◽  
Content Type ◽  
Self Assembled ◽  
Highly Hydrophobic

Purpose This paper aims to prepare highly hydrophobic films on aluminum AA3003 using myristic acid (MA) and evaluate its corrosion protection efficiency in a low-chloride solution. Design/methodology/approach The aluminum surface was initially treated with boiling water to develop a porous nanostructure, and then surface modification was carried out in ethanolic solutions with different concentrations of MA. The surface morphology, wetting behavior and film composition were first characterized, and then, the corrosion behavior was evaluated with electrochemical techniques. Findings The best hydrophobicity and corrosion resistance were obtained with 50 mM of MA. For such concentration, a water contact angle of 140° and protective efficiency of 96% were achieved. A multilayer structure was revealed by scanning electron microscope and X-ray photoelectron spectroscopy. Originality/value The results of this work shed light on the anticorrosion performance of fatty acid self-assembled multilayers on the surface of Al–Mn alloys.

Sign in / Sign up

Export Citation Format

Share Document