(2012). [Methods of bio-engineering destruction of root residues in application to a space vitamin greenhouse with ionite artificial soil]. Aviakosmicheskaia i Ekologicheskaia Meditsina = Aerospace and Environmental Medicine, 46(4), 48–52.
Abstract: Regeneration of ionite artificial soil (AS) in root modules (RM) of conveyor-type space greenhouses should be proceeded by removal of root residues without disruption of the AS capillary-porous structure. The proposed method consists of two stages of root residues destruction. On the first stage, AS treatment by 0.7% an alkali water solution with added 0.7% hydrogen peroxide over 3.5 hours in a thermal-insulation container at 95 +/- 4 degrees C reduces root residue mass up to 60%. Specific energy cost of SHF pulses to maintain the required temperature is 1 W x hr for cleaning 1 g and AS sterilization from saprotrophs. On the second stage, AS undergoes saturation with a liquid anaerobic medium for 7-day cultivation of thermophilic Clostridium thermocellum at 55 degrees C. Seven days of bio-engineering regeneration enables removal of 90% root biomass. Residual products of fermentation have a stimulating effect on seed germination and subsequent plant growth. Bio-engineering testing of regenerated AS with cultivation of leaf cabbage Brassica chinensis L. attested to suitability of the technology for extension of AS useful life.
Keywords: Bioengineering/*methods; Biomass; Brassica/growth & development; Clostridium thermocellum/growth & Fermentation; Hydrogen Peroxide/chemistry; Plant Roots/growth & Soil/*chemistry; *Space Flight; Temperature; SpaceMed; Neuroscience; Snails
|
(2012). [Research activities of cosmonauts in long-duration orbital missions]. Aviakosmicheskaia i Ekologicheskaia Meditsina = Aerospace and Environmental Medicine, 46(4), 22–26.
Abstract: The paper presents the view of space medicine and human factor experts on the problems of cosmonauts research activities. Readiness of ISS crewmembers for conducting experiments and research equipment handling depends on the pre-flight training quality and course of adaptation to the flight conditions, the latter of particular criticality for participation in human use tests as an object.
Keywords: *Aerospace Medicine; Astronauts/education/*organization & administration/standards; Humans; Research/instrumentation; *Research Design; *Space Flight; Time Factors; SpaceMed; Neuroscience; Snails
|
(2012). [Shifts in the mice blood-forming system and energy exchange of erythrocytes due to chronic exposure to chemical agents (acetone, ethanol, acetaldehyde) and radiation in concentrations and doses modeling the conditions in extended orbital mission]. Aviakosmicheskaia i Ekologicheskaia Meditsina = Aerospace and Environmental Medicine, 46(2), 21–28.
Abstract: The paper presents the results of an investigation with mice subjected to isolated and successive exposure to a blend of chemical agents (acetone, ethanol, acetaldehyde) at MPC levels defined for piloted space vehicles followed by fractionated gamma-irradiation by daily 1 cGy (30 cGy total). The selected chemicals are the primary contributors to total air contamination and present in the prioritized list of compounds to be monitored to ensure air quality on piloted space vehicles. Radiation levels were determined with allowance for mice radiosensitivity to simulate the actual absorbed dose accumulated by crewmembers of orbital mission of up to a year in duration (10 cGy). Based on the findings in the hematopoietic system and erythrocyte biochemistry, energy exchange and redox parameters, pre-irradiation exposure to chemical agents within the MPC limits accentuated radiosensitivity gravely and, therefore, made mouse organism less tolerant to radiation. It was shown that adaptation of the hematopoietic system calls forth activation and significant straining of regulatory mechanisms equally in opposing to a single factor or combination of chemical and radiation exposure. The marked tension of these mechanisms persisted till day 30 of recovery.
Keywords: Acetaldehyde/administration & dosage/*toxicity; Acetone/administration & Air Pollutants/toxicity; Animals; Environmental Monitoring/methods; Erythrocytes/*drug effects/radiation effects; Ethanol/administration & Gamma Rays/*adverse effects; Mice; Inbred C57BL; Inbred CBA; Oxidation-Reduction; Space Flight; Time Factors; SpaceMed; Neuroscience; Snails
|
(2012). In the wake of the Supreme Court's ruling on health care reform, hospitals and EDs still grapple with uncertainty, continued stress. ED Manag, 24(9), 97–100.
Abstract: Even though the U.S. Supreme Court has upheld the bulk of President Obama's signature health care legislation, the Accountable Care Act (ACA), the prospects for full implementation of the law remain uncertain as political opponents still vow to strike down portions of the law at the earliest opportunity. Further, the high court's decision to leave the law's Medicaid expansion provisions up to the states leaves hospitals and EDs in a particularly precarious position as they will still face mandated cuts that the law's authors anticipated would be offset by Medicaid dollars. Experts recommend that ED administrators prepare for continued stress on their departments and get involved with shaping the way emergency medicine fits into ACOs and other emerging models of care. Some experts predict that EDs will see a flood of new patients when the Medicaid expansion provisions go into effect in 2014, but this trend may be tempered by the fact that newly insured patients will be able to seek care in other settings. The health reform transition is expected to be most difficult in states with large uninsured populations, and experts agree that a shortage of primary care physicians will drive ED volume in many communities. Hospitals and health care business interests are putting pressure on states to opt in to the ACA's Medicaid expansion provisions because it will make federal dollars available to cover 100% of the cost to cover newly insured Medicaid patients for three years, and 90% of the cost after that.
Keywords: *Emergency Service, Hospital/utilization; Health Services Accessibility; Medicaid; Patient Protection and Affordable Care Act/*legislation & jurisprudence; State Government; *Supreme Court Decisions; *Uncertainty; United States
|
(2012). In the wake of the Supreme Court's ruling on health care reform, hospitals and EDs still grapple with uncertainty, continued stress. ED Manag, 24(9), 97–100.
Abstract: Even though the U.S. Supreme Court has upheld the bulk of President Obama's signature health care legislation, the Accountable Care Act (ACA), the prospects for full implementation of the law remain uncertain as political opponents still vow to strike down portions of the law at the earliest opportunity. Further, the high court's decision to leave the law's Medicaid expansion provisions up to the states leaves hospitals and EDs in a particularly precarious position as they will still face mandated cuts that the law's authors anticipated would be offset by Medicaid dollars. Experts recommend that ED administrators prepare for continued stress on their departments and get involved with shaping the way emergency medicine fits into ACOs and other emerging models of care. Some experts predict that EDs will see a flood of new patients when the Medicaid expansion provisions go into effect in 2014, but this trend may be tempered by the fact that newly insured patients will be able to seek care in other settings. The health reform transition is expected to be most difficult in states with large uninsured populations, and experts agree that a shortage of primary care physicians will drive ED volume in many communities. Hospitals and health care business interests are putting pressure on states to opt in to the ACA's Medicaid expansion provisions because it will make federal dollars available to cover 100% of the cost to cover newly insured Medicaid patients for three years, and 90% of the cost after that.
Keywords: *Emergency Service, Hospital/utilization; Health Services Accessibility; Medicaid; Patient Protection and Affordable Care Act/*legislation & jurisprudence; State Government; *Supreme Court Decisions; *Uncertainty; United States
|