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Zlatka Stoyneva and Svetlan Dermendjiev

References Chetter IC, Kent PJ, Kester RC. The hand arm vibration syndrome: a review. Cardiovasc Surgery 1998;6:1-9. Lings S, Leboeuf-Yde C. Whole-body vibration and low back pain: a systematic, critical review of the epidemiological literature 1992-1999. Int Arch Occup Environm Health 2000;73:290-7. Bovenzi M. Criteria for case definitions for upper limb and lower back disorders caused by mechanical vibration. Med Lav 2007;98:98-110 Hughes JM, Wirth O

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Nazar Kostyshyn, Mechyslav Grzegotsky and Marta Servetnyk

REFERENCES 1. Compston JE. Sex steroids and bone. Physiol Rev. 2001;81(1):419-47. 2. Kolesnyk DA, Silenko YuI. Condition of blood biochemical indices under experimental osteoporosis. Actual Problems of the Modern Medicine, 2011;3(35),20-22). [Article in Russian] 3. Santos-Filho SD, Meyer PF, Ronzio OA, Bonelli L, Fonseca AS, Bernardo-Filho M. Whole body vibration exercise: what do you know about scientific interest? FIEP Bull. 2010;80:875-78). 4. Schutska HV, Hudyma AA, Boris RM. Features of bone tissue remodeling in condition of

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Dejan Jeremic, Maja Vulovic, Ivana Zivanovic Macuzic, Anita Ivosevic, Vesna Grbovic, Igor Sekulic and Dusica Djordjevic

. Johanning E. Whole-body vibration-related health disorders in occupational medicine--an international comparison. Ergonomics 2015;58(7):1239-52. 10. Walker-Bone K, Palmer KT. Musculoskeletal disorders in farmers and farm workers. Occup Med 2002;52:441-50. 11. Croft P, Coggon D, Cruddas M, Cooper C. Osteoarthritis of the hip: an occupational disease in farmers. BMJ 1992;304:1269-72. 12. Jarvholm B, Lundstrom R, Malchau H, Rehn B, Vingard E. Osteoarthritis in the hip and whole-body vibration in heavy vehicles. Int Arch Occup

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Dusko Kornjaca, Vladimir Zivkovic, Nevena Barudzic, Vladimir Jakovljevic and Dragan Djuric

. London: Chapman & Hall, 1954. 5. Nirrko A. On the intraindividual correspondence between the EEG alpha rhythm and muscle vibration.Report no. 2, University of Helsinki Psychological Institute, 1961. 6. Sugano H. Studies on the microvibrations. Kurume Med J. 1957; 4: 97-113. 7. Swarofsky H: Die Microvibration bei Affecten und bei Temperaturaenerungen. Unpublishhed doctoral dissertation, University of Vienna, 1958. 8. Ohkawa H, Ohishi N, Yagi K. Assay for lipid peroxides in animal tissues by thiobarbituric

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Lavinia Grama, F. Boda, A.S. Gaz Florea, A. Curticăpean and Daniela-Lucia Muntean

Abstract

Objectives: The polyoxometalates are a class of inorganic compounds with controllable shapes and sizes, and with excellent properties that make them attractive for various applications. This study is aimed at the comparative UV and IR spectra of Keggin type polyoxometalates.

Methods: Compounds under (UV and IR) investigations were divided into several groups to highlight similarities between compounds or classes of compounds for the same category. There are four types of saturated Keggin structures and six lacunar compounds included in this study. The study begins with the UV investigations on aqueous solutions with 10-5 M concentration for these compounds. IR spectra were recorded as KBr pressed pellets.

Results: The UV spectras presents large strong peaks between 185-195 nm corresponding to W = Od bonds, between 251-268 nm for W-O-W bridge bonds, depending on heteroatom types (As, Sb). The unsaturated cryptand ligand having Co2+ coordinated presents the most intense peak, due to the involvement of oxygen atoms from terminal W = Od coordinative bonds with high electronic densities in coordination of W-O-Co bond. The IR spectra present many peaks that are associated as follows: for terminal bonds W = Od, 955-970 cm-1; for W-OW bridging bonds, 790-910 cm-1; for W-O-As/Sb bonds to heteroatom, 690-760 cm-1. Vibrations of the bonds between heteroatoms and oxygen (As/Sb-O) appear around 620-660 cm-1.

Conclusions: Similarities appear from the recorded spectra, between compounds of the same class, by category association. Very fine displacements of peaks that occur explain the influence of heteroatoms, addenda atoms or coordinated cations.

Open access

Dusko Kornjaca, Vladimir Jakovljevic, Stefan Zivkovic, Marko Djuric, Nela Puskas and Dragan Djuric

. London: Chapman & Hall, 1954 5. Nirrko O: On the intraindividual correspondence between the EEG alpha rythm and muscle vibration. Report No. 2, University of Helsinki Psychological Institute, 1961 6. Sugano H: Studies on the microvibration. Kurume Med J, 1957; 4: 97-113 7. Swarofsky H: Die Microvibration bei Affecten und bei Temperaturaenerungen. Doctoral dissertation, University of Vienna, 1958 8. Rohracher H: Neue Untersuchungen uber biologische Microschwingungen. II Anz Phil-Hist Ost Akad Wist 11

Open access

Ardiana Murtezani, Zana Ibraimi, Sabit Sllamniku, Teuta Osmani and Seven Sherifi

Prevalence and Risk Factors for Low Back Pain in Industrial Workers

Objectives: The aim of the present study was to determine the prevalence of low back pain (LBP) in industrial workers, check for possible LBP related risk factors and investigate the associations between physical activity and severity of low back pain.

Methods: We conducted a cross-sectional study among 430 workers of an industrial company over the previous 12 months. The industrial workers were given questionnaires and assigned to two groups: (1) with low back pain, (2) without low back pain. Group 1 was then divided into three subgroups according to the answer to question (a) LBP without irradiation, called mild cases, (b) LBP with irradiation above the knee, called moderate cases, LBP with the irradiation below the knee, called severe cases.

Results: LBP was found in 61.6% of workers. The prevalence of LBP was significantly associated with physical activity (p = 0.03). There was a significant difference between frequent physical activity and severity of LBP (p = 0.01). Work-related physical factors showed strong associations with LBP. The main risk factors for low back pain among production workers were extreme trunk flexion (OR = 3.5, 95% CI 1.7-7.3), as well as lifting of loads (OR = 3.5, 95% CI 1.9-6.2), pushing or pulling heavy loads (OR = 3.5, 95% CI 1.9-6.2) and exposure to whole body vibration (OR = 1.7, 95% CI 1.0-3.0).

Conclusion: Daily life conditions, job-related factors are associated with the occurrence of low back pain. These results suggest that individuals with LBP should avoid nonspecific physical activities to reduce pain and improve psychological health.

Open access

Bistra Y. Blagova, Petia F. Pechalova, Elena G. Poriazova and Irina A. Angelova

vibrations to perform osteotomies in rhinoplasty. J Oral Maxillofac Surg 2007;65:1035-8. 8. Sakkas N, Otten JE, Gutwald R, et al. Transposition of the mental nerve by piezosurgery followed by postoperative neurosensory control: a case report. Br J Oral Maxillofac Surg 2008;46:270-1. 9. Seshan H, Konuganti K, Zope S. Piezosurgery in periodontology and oral implantology. J Indian Soc Periodontol 2009;13:155-6. 10. Rashad A, Sadr-Eshkevari P, Heiland M, et al. Intraosseous heat generation during sonic, ultrasonic and

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Hajnal Kelemen, Gabriel Hancu, Serban Andrei Gâz-Florea, Eniko Nemes-Nagy, Lajos Attila Papp and Eleonora Mircia

Macrocycl Chem. 2016;84(3-4):189-196. 20. Wang JH, Cai Z – Investigation of inclusion complex of miconazole nitrate with β-cyclodextrin. Carbohydrate polymers. 2008;72(2): 255-260. 21. Gupta HKK – Solid state compatibility studies of miconazole using thermal and spectroscopic methods. Adv Anal Chem. 2015;5(3):51-55. 22. Barillaro V, Dive G, Ziémons et al. – Theoretical and experimental vibrational study of miconazole and its dimers with organic acids: Application to the IR characterization of its inclusion complexes with cyclodextrins. . Int J Pharm

Open access

Angel M. Dzhambov and Donka D. Dimitrova

European Working Conditions Survey; 2015. 14. Tzenova B, Radneva R, Tzvetkov D, et al. [Characteristics of noise exposure in modern living environment and their health effects]. Hyg Public Health 2000;5-6:29-33 (in Bulgarian) 15. Dimitrova T, Karaslavova E. [Vibrations in the working environment and risk of acute myocardial infarction]. Med Rev 2008;44:54-7 (in Bulgarian). 16. Dzhambov A, Dimitrova D. Road traffic noise and annoyance: exposure-response relationship and burden of disease calculations in Bulgaria. Scr Sci Med 2015;47(2):22-30. 17