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Volume 76 (2021): Issue 3 (September 2021)

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Volume 59 (2017): Issue 2 (June 2017)

Volume 58 (2017): Issue 1 (March 2017)

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Volume 51 (2015): Issue 2 (June 2015)

Volume 50 (2015): Issue 1 (March 2015)

Journal Details
Format
Journal
eISSN
2084-0535
First Published
30 Mar 2015
Publication timeframe
4 times per year
Languages
English

Search

Volume 58 (2017): Issue 1 (March 2017)

Journal Details
Format
Journal
eISSN
2084-0535
First Published
30 Mar 2015
Publication timeframe
4 times per year
Languages
English

Search

6 Articles
Open Access

The Risk of Hydrogen Explosion an a Submarine Part 3 Production of Hydrogen Mixes

Published Online: 14 Jul 2017
Page range: 1 - 12

Abstract

Abstract

This series of articles presents the problems associated with the conduction of a high-risk project aimed at modernising the hydrogen combustion engines on a submarine. The article describes technical issues connected with obtaining hydrogen-air mixes.

Keywords

  • hydrogen-air mixes
  • oxyhydrogen
  • production of gas mixes
  • stream mixing method
Open Access

The Support of Underwater Works with the Use of Remotely Operated Vehicles On the Example of Works Conducted On the Wreck of the Fishing Boat WŁA-127

Published Online: 14 Jul 2017
Page range: 13 - 22

Abstract

Abstract

The article demonstrates use of underwater remotely operated vehicles during an underwater visual inspection of a sunken vessel. The presented tasks were carried out in the course of underwater works performed from a Polish navy rescue vessel on the fishing boat WŁA-127. The discussed examples include a visual inspection of the sunken vessel and the support offered to Polish Navy rescue divers as they carried out underwater works.

Keywords

  • marine engineering
  • underwater works
  • underwater vehicle
  • underwater visual inspection
Open Access

The Influence of Hyperoxia On Heat Shock Proteins Expression and Nitric Oxide Synthase Activity – the Review

Published Online: 14 Jul 2017
Page range: 23 - 28

Abstract

Abstract

Any stay in an environment with an increased oxygen content (a higher oxygen partial pressure, pO2) and an increased pressure (hyperbaric conditions) leads to an intensification of oxidative stress. Reactive oxygen species (ROS) damage the molecules of proteins, nucleic acids, cause lipid oxidation and are engaged in the development of numerous diseases, including diseases of the circulatory system, neurodegenerative diseases, etc. There are certain mechanisms of protection against unfavourable effects of oxidative stress. Enzymatic and non-enzymatic systems belong to them. The latter include, among others, heat shock proteins (HSP). Their precise role and mechanism of action have been a subject of intensive research conducted in recent years. Hyperoxia and hyperbaria also have an effect on the expression and activity of nitrogen oxide synthase (NOS). Its product - nitrogen oxide (NO) can react with reactive oxygen species and contribute to the development of nitrosative stress. NOS occurs as isoforms in various tissues and exhibit different reactions to the discussed factors. The authors have prepared a brief review of research determining the effect of hyperoxia and hyperbaria on HSP expression and NOS activity.

Keywords

  • oxidative stress
  • hyperoxia
  • hyperbaria
  • heat-shock proteins
  • nitric oxide synthase
Open Access

The Evaluation of Sanitary-Epidemiological Service Conditions On a Submarine

Published Online: 14 Jul 2017
Page range: 29 - 36

Abstract

Abstract

Service on a submarine is the most stressful and psychologically challenging form of military service. It is characterised by specific living and sanitaryepidemiological conditions which are far from typical. This work is based on the analyses of reports formulated from research conducted by a working environment laboratory, and on the control protocols of the sanitary supervision and control team (WOMP) Gdynia, from the Kobben submersible vessels in the years 2014 and 2015. Military Centres of Preventive Medicine hold supervision over Military Units pursuant to generally applicable regulations in the civil environment and standardised NATO norms. Measurements concern the level of noise, mechanical vibrations, chemical agents, electromagnetic radiation, physiochemical and biological water and kitchenware tests. The objective of the research is to evaluate the service conditions on a submersible vessel with regard to sanitary-epidemiological aspects such as exposure to infectious and occupational diseases. In selected stations, the conducted measurements indicate an increased level of noise, electromagnetic radiation and excess quantities of bacteria colonies on kitchenware.

Keywords

  • working environment
  • submarine
  • electromagnetic radiation
  • noise
  • vibrations
  • chemical agents
Open Access

The Effect of Hyperbaric Oxygen Therapy On the Level of Lipid Peroxides in Rat Brains

Published Online: 14 Jul 2017
Page range: 37 - 40

Abstract

Abstract

The problem of oxygen toxicity, and its effect on the nervous system, is an important topic with regard to the application of oxygen and breathing mixes in the pursuit of diving, as well as in the light of the striking synergy between the effects of oxygen and ionising radiation. Studies on the level of lipid peroxides were performed on rat brains. The animals were subjected to exhaustive physical strain in a pressure chamber and oxygen at the pressure between 0-3 atm for the period of 25-60 minutes. Parallel research was conducted on rested animals. Following the dissection, the brain was homogenised and the levels of lipid peroxides were determined using the Wollman method with TBA. In animals subjected to physical effort over the specified time, no deviations in the levels of lipid peroxides were observed in comparison to the control group. An increase in lipid peroxide level was noted in rats manifesting oxygen toxicity symptoms. On the basis of the above findings, the authors presume that the growth of lipid peroxides in the brain in cases subjected to hyperbaric oxygenation should be recognised as a far-reaching harmful effect of oxygen, occurring after enzymatic damage and the violation of cellular antioxidant protection. At low oxygen overpressures, no deviations in the levels of lipid peroxides were noted as compared to the control group.

Keywords

  • oxygen
  • overpressure
  • rat
  • lipid peroxides
Open Access

Suicidal Deaths an a Water Environment

Published Online: 14 Jul 2017
Page range: 41 - 45

Abstract

Abstract

Unexpected, abrupt death is always a great tragedy, both for a victim, as well as, for their family, friends, society or even country. However, death as a result of a suicide always seems to be unnecessary and difficult to accept by relatives. Every 40 seconds someone dies on the globe due to a kind of an auto-destruction act. Out of all suicides, the biggest group are adult men, frequently with mental disorders, who commit suicide by hanging themselves. The only suicide method where women are almost on the par with men is drowning (by many authors referred to as death by drowning).

Keywords

  • drowning
  • auto-aggression
  • suicide
6 Articles
Open Access

The Risk of Hydrogen Explosion an a Submarine Part 3 Production of Hydrogen Mixes

Published Online: 14 Jul 2017
Page range: 1 - 12

Abstract

Abstract

This series of articles presents the problems associated with the conduction of a high-risk project aimed at modernising the hydrogen combustion engines on a submarine. The article describes technical issues connected with obtaining hydrogen-air mixes.

Keywords

  • hydrogen-air mixes
  • oxyhydrogen
  • production of gas mixes
  • stream mixing method
Open Access

The Support of Underwater Works with the Use of Remotely Operated Vehicles On the Example of Works Conducted On the Wreck of the Fishing Boat WŁA-127

Published Online: 14 Jul 2017
Page range: 13 - 22

Abstract

Abstract

The article demonstrates use of underwater remotely operated vehicles during an underwater visual inspection of a sunken vessel. The presented tasks were carried out in the course of underwater works performed from a Polish navy rescue vessel on the fishing boat WŁA-127. The discussed examples include a visual inspection of the sunken vessel and the support offered to Polish Navy rescue divers as they carried out underwater works.

Keywords

  • marine engineering
  • underwater works
  • underwater vehicle
  • underwater visual inspection
Open Access

The Influence of Hyperoxia On Heat Shock Proteins Expression and Nitric Oxide Synthase Activity – the Review

Published Online: 14 Jul 2017
Page range: 23 - 28

Abstract

Abstract

Any stay in an environment with an increased oxygen content (a higher oxygen partial pressure, pO2) and an increased pressure (hyperbaric conditions) leads to an intensification of oxidative stress. Reactive oxygen species (ROS) damage the molecules of proteins, nucleic acids, cause lipid oxidation and are engaged in the development of numerous diseases, including diseases of the circulatory system, neurodegenerative diseases, etc. There are certain mechanisms of protection against unfavourable effects of oxidative stress. Enzymatic and non-enzymatic systems belong to them. The latter include, among others, heat shock proteins (HSP). Their precise role and mechanism of action have been a subject of intensive research conducted in recent years. Hyperoxia and hyperbaria also have an effect on the expression and activity of nitrogen oxide synthase (NOS). Its product - nitrogen oxide (NO) can react with reactive oxygen species and contribute to the development of nitrosative stress. NOS occurs as isoforms in various tissues and exhibit different reactions to the discussed factors. The authors have prepared a brief review of research determining the effect of hyperoxia and hyperbaria on HSP expression and NOS activity.

Keywords

  • oxidative stress
  • hyperoxia
  • hyperbaria
  • heat-shock proteins
  • nitric oxide synthase
Open Access

The Evaluation of Sanitary-Epidemiological Service Conditions On a Submarine

Published Online: 14 Jul 2017
Page range: 29 - 36

Abstract

Abstract

Service on a submarine is the most stressful and psychologically challenging form of military service. It is characterised by specific living and sanitaryepidemiological conditions which are far from typical. This work is based on the analyses of reports formulated from research conducted by a working environment laboratory, and on the control protocols of the sanitary supervision and control team (WOMP) Gdynia, from the Kobben submersible vessels in the years 2014 and 2015. Military Centres of Preventive Medicine hold supervision over Military Units pursuant to generally applicable regulations in the civil environment and standardised NATO norms. Measurements concern the level of noise, mechanical vibrations, chemical agents, electromagnetic radiation, physiochemical and biological water and kitchenware tests. The objective of the research is to evaluate the service conditions on a submersible vessel with regard to sanitary-epidemiological aspects such as exposure to infectious and occupational diseases. In selected stations, the conducted measurements indicate an increased level of noise, electromagnetic radiation and excess quantities of bacteria colonies on kitchenware.

Keywords

  • working environment
  • submarine
  • electromagnetic radiation
  • noise
  • vibrations
  • chemical agents
Open Access

The Effect of Hyperbaric Oxygen Therapy On the Level of Lipid Peroxides in Rat Brains

Published Online: 14 Jul 2017
Page range: 37 - 40

Abstract

Abstract

The problem of oxygen toxicity, and its effect on the nervous system, is an important topic with regard to the application of oxygen and breathing mixes in the pursuit of diving, as well as in the light of the striking synergy between the effects of oxygen and ionising radiation. Studies on the level of lipid peroxides were performed on rat brains. The animals were subjected to exhaustive physical strain in a pressure chamber and oxygen at the pressure between 0-3 atm for the period of 25-60 minutes. Parallel research was conducted on rested animals. Following the dissection, the brain was homogenised and the levels of lipid peroxides were determined using the Wollman method with TBA. In animals subjected to physical effort over the specified time, no deviations in the levels of lipid peroxides were observed in comparison to the control group. An increase in lipid peroxide level was noted in rats manifesting oxygen toxicity symptoms. On the basis of the above findings, the authors presume that the growth of lipid peroxides in the brain in cases subjected to hyperbaric oxygenation should be recognised as a far-reaching harmful effect of oxygen, occurring after enzymatic damage and the violation of cellular antioxidant protection. At low oxygen overpressures, no deviations in the levels of lipid peroxides were noted as compared to the control group.

Keywords

  • oxygen
  • overpressure
  • rat
  • lipid peroxides
Open Access

Suicidal Deaths an a Water Environment

Published Online: 14 Jul 2017
Page range: 41 - 45

Abstract

Abstract

Unexpected, abrupt death is always a great tragedy, both for a victim, as well as, for their family, friends, society or even country. However, death as a result of a suicide always seems to be unnecessary and difficult to accept by relatives. Every 40 seconds someone dies on the globe due to a kind of an auto-destruction act. Out of all suicides, the biggest group are adult men, frequently with mental disorders, who commit suicide by hanging themselves. The only suicide method where women are almost on the par with men is drowning (by many authors referred to as death by drowning).

Keywords

  • drowning
  • auto-aggression
  • suicide

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