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This paper discusses problems of estimating the net long-wave radiation flux at the sea surface on the basis of easily measurable meteorological quantities (air and sea surface temperatures, near-surface water vapour pressure, cloudiness). Empirical data and existing formulae are compared. Additionally, an improved formula for the southern Baltic region is introduced, with a systematic error of less than 1 W m−2 and a statistical error of less than 20 W m−2.
Background: The aim of this research is to evaluate analgesic effectiveness of infrared radiation and interference currents in degenerative diseases of joints. On the grounds of current practical and theoretical experience, the following hypothesis was formed: Application of interference currents and infrared radiation constitutes effective analgesic therapy in degenerative diseases, and in the case of the applied treatment, its effectiveness is long-term. Material/Methods: Tests were conducted on a group consisting of 32 women and men in the age range of 65-87 years of age suffering from a degenerative disease of the knee joint. The patients were applied a series of 10 treatments with application of the Sollux lamp for 15 minutes and interference currents of 50-100 HZ frequency for 5 minutes and 90- 100 Hz for 10 minutes during treatment. Evaluation of the efficiency of therapy was checked by means of the VAS scale and the Laitinen scale. Results: The results indicate an efficient analgesic effect according to the VAS scale immediately after treatment p = 0.002 and a month after treatment p = 0.000 as well as according to the Laitinen scale immediately after treatment p = 0.004 and a month after treatment p = 0.004. Conclusions: Application of infrared radiation and interference currents indicates an analgesic effect. These treatments may be alternative or supportive to pharmacological treatment in the case of degenerative changes in people who are over 65 years of age. Results of the research suggest continuation of further research on the effectiveness of the above-mentioned therapy and the length of preserving analgesic results in people with degenerative diseases of joints.
This paper discusses existing models of long-wave radiation exchange between the sea surface and the atmosphere, and compares them with experimental data. The latter were based on empirical data collected in the southern Baltic during cruises of r/v ‘Oceania’. To a greater or lesser extent, all the models were encumbered with significant systematic and statistical errors. The probable reasons for these discrepancies are given.
The paper addresses the influence of infra-red radiation on moisture content and compressing force of wheat grain (Zawisza cv.). The decrease was observed in moisture content of wheat grains subjected to IR radiation processing. The dependence was described using first-order regression equations. Grain’s exposure to IR resulted in a decrease of compressing force recorded directly after heating. After 48 h, values of the measured forces increased considerably and sometimes were higher than those recorded for grains that were not processed with IR.
 Infrared (IR)-A irradiation can be useful in back and musculoskeletal pain therapy. In this study joint and vertebral column pain and mobility were measured during two weeks of IR-A irradiation treatment of patients suffering from degenerative osteoarthritis of hip and knee, low back pain, or rheumatoid arthritis. Additionally, before and after IR-A treatment MDA serum levels were measured to check if MDA variations accompany changes in pain intensity and mobility. Two-hundred and seven patients were divided into verum groups getting IR-irradiation, placebo groups getting visible, but not IR irradiation, and groups getting no irradiation. In osteoarthritis significant pain reduction according to Visual Analogue Scale and mobility improvements occurred in the verum group. Even though beneficial mean value changes occurred in the placebo group, the improvements in the placebo and No Irradiation groups were without statistical significance. In low back pain, pain and mobility improvements (by 35-40 %) in the verum group were found, too. A delayed (2nd week) mobility improvement in rheumatoid arthritis was seen. However, pain relief was seen immediately. In patients suffering from low back pain or rheumatoid arthritis, the pain and mobility improvements were accompanied by significant changes of MDA serum levels. However, MDA appears not a sensitive biofactor for changes of the pain intensity in degenerative osteoarthritis. Nevertheless, unaffected or lowered MDA levels during intensive IR-A therapy argue against previous reports on free radical formation upon infrared. In conclusion, rapid beneficial effects of IR-A towards musculoskeletal pain and joint mobility loss were demonstrated.
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