Evaluation of protective properties of safety anti-penetration inserts in footwear designed for professional use

2018 ◽  
Vol 559 (4) ◽  
pp. 12-15
Author(s):  
Agnieszka Woźniak-Mileszczak ◽  
Ewa Woźniak ◽  
Sebastian Decka
Keyword(s):  
Protective Capacity ◽  
Protective Properties ◽  
Penetration Velocity

In accordance with applicable standards: PN-EN 12568:2011 i PN-EN ISO 20344:2012, anti-penetration inserts and footwear outsole with anti-penetration inserts are tested at penetration velocity (10 ± 3) mm/min, with a test nail of (4.50 ± 0.05) mm in diameter and a conical tip with a truncation of 1 mm and an angle of 30o. This velocity is relatively low compared to penetration velocity when walking vigorously. The diameter of the test nail also exceeds diameters of most nails used in industry. Users’ contact with sharp objects potentially present on the ground at a worksite is usually more dynamic. It is important for footwear and the inserts to ensure workers’ safety. The Footwear Laboratory aimed to determine the effect of penetration velocity and test nail dimensions on the protective capacity of inserts. It also evaluated the quality of these items.

scholarly journals Effect of Multi-Microbial Probiotic Formulation Bokashi on Pro- and Anti-Inflammatory Cytokines Profile in the Serum, Colostrum and Milk of Sows, and in a Culture of Polymorphonuclear Cells Isolated from Colostrum

2018 ◽  
Vol 11 (1) ◽  
pp. 220-232 ◽  
Author(s):  
Ewa Laskowska ◽  
Łukasz Jarosz ◽  
Zbigniew Grądzki
Keyword(s):  
Inflammatory Cytokines ◽  
Feed Additives ◽  
Th2 Cells ◽  
Polymorphonuclear Cells ◽  
Protective Capacity ◽  
Tnf Α ◽  
Pregnancy And Lactation ◽  
Anti Inflammatory ◽  
Cellular Immune

Abstract The use of probiotics in sows during pregnancy and lactation and their impact on the quality of colostrum and milk, as well as the health conditions of their offspring during the rearing period, are currently gaining the attention of researchers. The aim of the study was to determine the effect of Bokashi formulation on the concentrations of pro- and anti-inflammatory cytokines in the serum of sows during pregnancy, in their colostrum and milk, and in a culture of Con-A-stimulated polymorphonuclear cells (PMNs) isolated from the colostrum. The study was conducted on 60 sows aged 2–4 years. EM Bokashi were added to the sows’ feed. The material for the study consisted of peripheral blood, colostrum, and milk. Blood samples were collected from the sows on days 60 and 114 of gestation. Colostrum and milk samples were collected from all sows at 0, 24, 48, 72, 96, 120, 144, and 168 h after parturition. The results indicate that the use of Bokashi as feed additives resulted in increased concentrations of pro-inflammatory cytokines TNF-α and IL-6, which increase the protective capacity of the colostrum by stimulating cellular immune mechanisms protecting the sow and neonates against infection. At the same time, the increased concentrations of cytokines IL-4, IL-10, TGF-β, and of immunoglobulins in the colostrum and milk from sows in the experimental group demonstrate the immunoregulatory effect of Bokashi on Th2 cells and may lead to increased expression of regulatory T cells and polarization of the immune response from Th1 to Th2.

Numerical Simulation Analysis for Anti-Penetration of Multilayer Ceramic Composite

2011 ◽  
Vol 396-398 ◽  
pp. 386-389
Author(s):  
Chao Zhang ◽  
Wei Wu ◽  
Yong Li
Keyword(s):  
Ceramic Composite ◽  
Simulation Analysis ◽  
Single Layer ◽  
Steel Structure ◽  
Metal Composite ◽  
Protective Structure ◽  
Protective Capacity ◽  
Initial Penetration ◽  
Multilayer Ceramic ◽  
Penetration Velocity

Use ANSYS / LS-DYNA software to build a numerical model for studying influence of projectile’s penetration velocity, penetration angle and ceramic/metal composite structure on protective capacity of multilayer ceramic composite. The results showed that velocity loss range of projectile running through the multilayer ceramic composite decreased with initial penetration velocity of projectile increased and that the shape of bullet hole showed growing asymmetry with penetration angle increased. Anti-penetration capacity of multilayer ceramic composite protective structure is better than that of single-layer ceramic composite protective structure or single-layer homogeneous steel structure with equal quality.

scholarly journals The effectiveness of the use of drugs Globigen Pig Dozer and Globigen Jump Start when growing pigs

2019 ◽  
Vol 21 (91) ◽  
pp. 94-97
Author(s):  
T. Y. Prudyus ◽  
Y. I. Kyryliv
Keyword(s):  
Blood Flow ◽  
Good Practice ◽  
Growing Pigs ◽  
Passive Immunity ◽  
Protective Capacity ◽  
Viral Pathogens ◽  
Living Things ◽  
The World ◽  
Energy Components

Currently, humanity owes great thanks to nature before the protection that nature has created is to protect the newborn. A person is born not sterile, but with protective appropriate antibodies transmitted from the mother. Antibodies, in the human body, have the ability to penetrate the placenta, and with blood flow, to be transmitted with maternal colostrum and milk. Unfortunately, not all living things have this advantage. Pigs are born sterile unless they are infected with viruses and toxins that have the ability to penetrate the placenta. In this case, they are sterile and defenseless, the whole environment is dangerous for them, and in this case there is no immunity and inevitable death. Therefore, after birth, the pigs themselves, or with the help of a sow that pushes them to the nipples with a snout, or an operator who receives farrowing, as soon as they try to drink precious colostrum, which loses its protective capacity every hour. The sow's colostrum contains not only nutritional, energy components, but also a more important component – Immunoglobulins. Immunoglobulins contained in colostrum provide piglets with passive immunity, but not all. Why? This is because the farrow is usually stretched or pathological. Pigs are born unevenly, so they eat colostrum differently. The last piglets, at birth, get the least amount of colostrum, or not enough at all. In addition, the quality of colostrum and the amount of immunoglobulins depend on the sow's age, the number of farrowing, whether the sows are vaccinated before farrowing, and the presence of viral pathogens and their vaccination. A good practice for pigs in the world, as well as in Ukraine, is the use of the Globigen Pig Dozer, which is given to the pigs orally to increase passive immunity and provide protection against viruses and bacteria.

scholarly journals Use of propolis in foods and its protective properties

2022 ◽  
Vol 8 (1) ◽  
pp. 68-77
Author(s):  
Damla Gümüş ◽  
Mevlüde Kızıl
Keyword(s):  
Food Industry ◽  
Sensory Quality ◽  
Microbial Growth ◽  
Biological Activities ◽  
Protective Effects ◽  
Aromatic Acids ◽  
Protective Properties ◽  
Natural Mixture ◽  
Plant Sources

Propolis is a natural mixture of saliva, enzymes and plant secretions which collected by bees from various plants and used for protection of hives against external fac-tors. Biological activities and chemical composition of propolis may vary accor-ding to the plant sources, location and time, and it contains phenolic compo-unds, aromatic acids, essen-tial oils, minerals and vita-mins. Propolis has been used in traditional medicine for various therapeutic pur-poses, and it has a potential as a natural preservative in foods. Propolis may have various protective effects such as reducing microbial growth and oxidation, pre-venting fungus, rotting and weight loss, maintaining product stability and exten-ding shelf life in meat, po-ultry, fish, dairy, vegetables, fruits and fruit juices during storage. However, propolis's unique odor and taste may alter the sensory quality of foods and that may effect its use in the food industry ne-gatively.

scholarly journals Radiation protection technologies using granular materials

2021 ◽  
pp. 194-200
Author(s):  
O.I. Gerasimov ◽  
I.S. Andrianova ◽  
L.M. Sidletska ◽  
A.Ya. Spivak ◽  
V.V. Kuryatnikov ◽  
...  
Keyword(s):  
Granular Materials ◽  
Radiation Protection ◽  
Form Factors ◽  
Potential Threat ◽  
Protective Properties ◽  
Theoretical Substantiation ◽  
Physical Mechanisms ◽  
Destructive Processes ◽  
Monolithic Structures

Technological overcoming of the potential threat of a decrease in the quality of radiation monolithic structures of protective shields, which are under constant influence of ionizing radiation (due to radiation embitterment) is one of the most urgent tasks of ensuring protection against radiation exposure. The aim of the work is to carry out a comparative analysis of the quality (in terms of radiation protection) of monolithic and granular protective screens. In contrast to monolithic prototypes, granular conglomeration has clear advantages, which are to avoid destructive processes of radiation embitterment, simplify replacement and handling (compaction and compaction), and disposal. It is important to emphasize that the protective properties of granular screens hardly differ from their monolithic counterparts, and the economic advantages of the corresponding technologies are significant at the same time. The material provided is actually the formulation of the problem on the theoretical substantiation of the advantages of using granular materials (in comparison with monolithic ones) in radiation protection technologies based on analysis as physical mechanisms and form factors of interaction neutron and gamma radiation with a substance with a developed morphology on a micro-scale.

scholarly journals Quantity and quality of wool yolk in Caucasian Merino rams

2018 ◽  
Vol 10 (4) ◽  
pp. 370-373
Author(s):  
D. Pamukova ◽  
G. Staykova ◽  
N. Stancheva
Keyword(s):  
Negative Impact ◽  
The Body ◽  
Technological Properties ◽  
Protective Properties ◽  
Body Side ◽  
Wool Yield

Abstract. The aim of this study was to determine the quality and quantity of the wool yolk of the rams from Caucasian merino breed in order to improve their technological features. The analyses included seven rams and eleven rams at the age of 18 months. Thirty-six individual wool samples from two parts of the body (side and thigh) were studied. The following wool parameters were investigated: percentage of the dirty areas of the wool (on the side and the thigh), fat amount, sweat amount, pH of sweat, laboratory wool yield, and color of greasy wool on the side. Percentage of the dirty areas of the wool by categories and topographic ranges varied from 30.79% to 41.52%, indicating that the wool yolk of Caucasian rams was of sufficient quantity and good quality. The percentage of the fats in wool yolk to the greasy wool was relatively high (23.25% in the rams at the age of 18 months and 25% in the rams) and had a negative impact on the wool yield. The ratio of fat/sweat was 1.91:1 in rams and 1.44:1 in rams at the age of 18 months). The higher relative part of the fat compared to the sweat was an indicator of good protective properties of the wool yolk. That allowed to protect the technological properties of the wool.

scholarly journals IL-10 production differentially influences the magnitude, quality, and protective capacity of Th1 responses depending on the vaccine platform

2010 ◽  
Vol 207 (7) ◽  
pp. 1421-1433 ◽  
Author(s):  
Patricia A. Darrah ◽  
Sonia T. Hegde ◽  
Dipti T. Patel ◽  
Ross W. B. Lindsay ◽  
Linda Chen ◽  
...  
Keyword(s):  
T Cells ◽  
T Cell ◽  
Cd4 T Cells ◽  
Cd4 T Cell ◽  
High Dose ◽  
Th1 Cells ◽  
Protective Capacity ◽  
Th1 Response ◽  
Ifn Γ

The quality of a Th1 response can be a prospective correlate of vaccine-mediated protection against certain intracellular pathogens. Using two distinct vaccine platforms, we evaluate the influence of interleukin (IL) 10 production on the magnitude, quality, and protective capacity of CD4+ T cell responses in the mouse model of Leishmania major infection. Multiparameter flow cytometry was used to delineate the CD4+ T cell production of interferon (IFN) γ, IL-2, tumor necrosis factor (TNF), and IL-10 (or combinations thereof) after vaccination. Immunization with a high dose of adenovirus (ADV) expressing leishmanial proteins (MML-ADV) elicited a limited proportion of multifunctional IFN-γ+IL-2+TNF+ Th1 cells, a high frequency of IL-10–producing CD4+ T cells, and did not protect against subsequent challenge. Surprisingly, in the absence of IL-10, there was no change in the magnitude, quality, or protective capacity of the Th1 response elicited by high-dose MML-ADV. In contrast, after immunization with MML protein and CpG (MML + CpG), IL-10 limited the production of IL-12 by DCs in vivo, thereby decreasing the generation of multifunctional Th1 cells. Consequently, three immunizations with MML + CpG were required for full protection. However, inhibiting IL-10 at the time of immunization enhanced the magnitude and quality of the Th1 response sufficiently to mediate protection after only a single immunization. Overall, we delineate distinct mechanisms by which vaccines elicit protective Th1 responses and underscore the importance of multifunctional CD4+ T cells.

scholarly journals Nutritional critical points of the cook & chill system and development of corrective actions tools

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
G Barocco ◽  
M Cella ◽  
D Sarto ◽  
A Pernarcic ◽  
T Longo ◽  
...  
Keyword(s):  
Critical Points ◽  
Nutritional Quality ◽  
Public Procurement ◽  
Quality Criteria ◽  
The Elderly ◽  
Rapid Screening ◽  
Protective Capacity ◽  
Corrective Actions ◽  
Screening Systems

Abstract Background In Italy almost one in 10 people eat a meal in collective catering (CC) every day. The WHO and FAO emphasize the need to guarantee adequate amounts of antioxidants and protective phytochemicals, essential for the many metabolic functions, by intake of minimally processed foods. It is strategic to ensure protective meals for all CC users, especially hospital patients and the elderly. Recently the Public Procurement (PP) have more often chosen Cook & Chill (C&C) systems, characterized by the administration of meals stored between 0 and +3 C ° for 20 - 30 days. The aims of the project were to: evaluate the qualitative - quantitative profile of the effective protective molecules in C&C meals, determine any nutritional critical points (NCPs) - corrective actions (CAs) of C&C, identify rapid and cheap methods for monitoring the nutritional quality of meals and identify portable systems easy to use by non-professional operators in the chemical-analytical sector. Methods The NACCP process indicated by the Ministry of Health has been applied. In 2019 over 120 foods collected at different stages of the production of a C&C were sampled. The University of Trieste has performed over 850 analyses. The outcomes were compared with the food composition database by the agency of the Ministry of Agriculture (MA). Results The quantitative profile of the protective molecules present in C&C meals was in many cases reduced by 15 to 75% compared to the MA database. The protective capacity of some meals administered is comparable to that of ultra-processed food. The NCPs - CAs have been determined to ensure an adequate content of protective compounds in C&C meals. Rapid screening systems with chromatographic and optical techniques were identified. Portable systems with immediate analytical response will be developed. Conclusions The results of the project can significantly orient PP towards choices that: adhere to the WHO recommendations and adopt nutritional quality monitoring tools. Key messages Include nutritional quality criteria for choosing collective catering systems. Monitor the nutritional quality of collective catering through rapid screening systems.

scholarly journals The quality of agricultural output

2008 ◽  
pp. 61-63
Author(s):  
N.A. Golubkina
Keyword(s):  
Vegetable Consumption ◽  
Epidemiological Data ◽  
Food Composition ◽  
Fruit And Vegetable Consumption ◽  
Biologically Active ◽  
Vegetable Crops ◽  
Fruit And Vegetable ◽  
Great Role ◽  
Protective Properties

Vegetables definitely play a great role in food composition of a human. In countries where fruit and vegetable consumption is high, there is reduced cases of cardiovascular and cancel diseases as it was shown by epidemiological data. Vegetables bear the protective properties based on antioxidant actions of such components as vitamins, flavonoids, antozian, polyphenols and microelements including selenium, zinc, and copper and so on. The applications of stimulators of growth are safe environmental methods that can be used for improvement of yield qualities. The influence of Epin, Gumats, APIONs and other growth stimulators on antioxidant and biologically active matter contents has been studied in range of vegetable crops like perennial onion, Japanese cabbage, and bell pepper and so on.

scholarly journals A Recombinant Enolase-Montanide™ PetGel A Vaccine Promotes a Protective Th1 Immune Response against a Highly Virulent Sporothrix schenckii by Toluene Exposure

Pharmaceutics ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 144 ◽  
Author(s):  
Damiana Téllez-Martínez ◽  
Deivys Leandro Portuondo ◽  
Maria Loesch ◽  
Alexander Batista-Duharte ◽  
Iracilda Zeppone Carlos
Keyword(s):  
Protective Immunity ◽  
Sporothrix Schenckii ◽  
Antifungal Drugs ◽  
Protective Capacity ◽  
Th1 Response ◽  
Virulent Strains ◽  
Toluene Exposure ◽  
Highly Virulent

The effect of vaccination in fungal strains that suffered changes in their virulence by exposure to environmental contaminants is largely known. Growing reports of resistance to antifungal drugs and the emergence of new highly virulent strains, possibly acquired in the environment, prompt the design of new vaccines able to prevent and combat emerging mycotic diseases. In this study, we evaluated the protective capacity of an enolase-based vaccine and Montanide PetGel A (PGA) as an adjuvant against S. schenckii with increased virulence by exposure to toluene. The adjuvanted vaccine induced a strong specific Th1 response and protective immunity against a challenge with either wildtype or toluene-adapted S. schenckii in Balb/c mice. This study highlights the role of the adjuvant PGA driving the quality of the anti-sporothrix immunity and the key component in the vaccine efficacy.

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