Primena ibuprofena u suzbijanju postoperacionog bola u stomatologiji

Postoperative pain is common complication after daily dental care. Non-steroidal anti-inflammatory drugs are among most widely prescribed analgesics for management of postoperative pain. The analgesic effect of a non-steroidal antiinflammatory drug (NSAID) is related to its ability to inhibit prostaglandin synthesis. Ibuprofen (2-proprionic acid derivate) was discovered in the 1960s as a representative of NSAIDs. It is a peripherally acting analgesic with a potent anti-inflammatory action. An extensive retrospective analysis of randomized clinical trials conducted over the last 40 years demonstrated that ibuprofen is effective in moderate to severe postoperative pain for different indications in dentistry. In comparison to other NSAIDs, ibuprofen is characterized by its efficiency, safety and good tolerance. The aim of this article was to present the most important pharmacological and therapeutic characteristics and side effects of ibuprofen used for postoperative pain treatment in dentistry.Bol koji se javi nakon hirurške intervencije je vrlo česta komplikacija u svakodnevnoj stomatološkoj praksi. U suzbijanju (lečenju) postoperacionog bola najčešće se prepisuju nesteroidni antiinflamatorni lekovi (NSAIL). Njihov analgetski efekat se zasniva, pre svega, na sprečavanju sinteze prostaglandina. Ibuprofen (derivat 2-propionske kiseline) je predstavnik velike grupe NSAIL, a otkriven je 1960. godine. Ovaj analgetik deluje na periferne nervne završetke s izrazitim protivupalnim efektom. Opsežna retrospektivna analiza randomiziranih kliničkih istraživanja u proteklih 40 godina pokazala je da je ibuprofen efikasan u suzbijanju umerenog i izraženog postoperacionog bola kod različitih indikacija. Osim efikasnosti, ibuprofen se odlikuje dobrom podnošljivošću i sigurnošću u poređenju sa drugim NSAIL. Cilj ovog rada bio je da se ukaže na najznačajnije farmakološke i terapeutske odlike, kao i neželjena dejstva ibuprofena u lečenju postoperacionog bola pri različitim indikacijama u stomatologiji

Analysis and prediction of rapeseed production indicators in the Republic of Srpska

The aim of this paper is to predict future trends in the basic production of rapeseed in the Republic of Srpska. The period to which the prediction relates is from 2018 to 2022, and the time series that is the subject of research is from 1996 to 2017. In addition to the descriptive analysis method, the Box-Jenkins model based on the ARIMA (Autoregressive Integrated Moving Average) class is used in the paper with the prediction purpose. The results obtained from the research show that, regardless of the present oscillations, in the future, there will be an increase in the area under the rapeseed and that in the last year of the prediction, the surface will reach the level of 1920 ha. Also, production is expected to increase even by 4 times more in comparison with the average from the analysed period. Predicted production in the last year of the prediction period will be about 5,824 tons. As far as the yield of rapeseed is concerned, it is expected to be 1.11 t/ha or even by 36% at a higher level than the average yield in the analysed period. Respectively, the predicted yield in the last year is higher by 0.21 t/ha or about 7% of the maximum yield in the observed period

Ergonomic analysis of the effects of the introduction of electronic displays in the cockpits of light single-engine piston aircrafts

This paper sublimates previous experience and results of certain studies related to the introduction of glass cockpit(GC) in the light piston aircraft.It considers the influence of the replacement of analog, conventional displays with the glass cockpits, on the safetyof thelight piston aircrafts, primarily from the aspect of reducing human (pilots) errors. Certain design solutions that were proposed with the introduction of the new technology in the light aviation are evaluated, including also into the consideration the results of studies that have not confirmed the expected increase of safety, in comparison with airplanes equipped with the conventional instruments

Survey on coaching philosophies and training methodologies of water polo head coaches from three different European national schools

The ability to change swimming styles and body positions, involving continuous shifting from horizontal to vertical posture and performing jumps, as well as technical skills play a fundamental role in water polo performance. To face with these demands, the coaching staff of elite and sub-elite water polo clubs might adopt a variety of training methods, also based on their specific coaching philosophies. This point has led to an enlargement of the staff, with higher head coaches’ responsibilities, who may interpret their professional activity according to their own coaching philosophy, education, and their respective national water polo schools. In fact, based on their international sports achievements, some countries can be identified as recognised water polo national schools. For this reason, the purpose of this study was to survey 40 head coaches of three important national water polo schools (Italy, Greece, and Serbia) to identify and compare their coaching philosophies and training methodologies. The survey was based on five sections (Technical staff composition, Team roster, Weekly periodization, Testing and monitoring, Tactics and strategies). Furthermore, using a detailed descriptive statistic, the current study gives interesting information on how 40 high-ranking elite and sub-elite teams of different national championships organize their training during a typical week of the competitive season. A further improvement of this research line could include more national schools, expanding the sample to more countries from all over the world

Measurement and analysis of vibrations of the axial-flow compressor caused by inlet flow instability during the flight of aircraft

U radu je prezentovan praktičan primer merenja i analize vibracija na prva dva stepena aksijalnog kompresora sa namerom da se proceni povezanost između poremećene ulazne struje vazduha i pojave otcepljenja strujnica od lopatica kompresora. Poremećenost ulazne struje vazduha je ispitivana tokom različitih režima leta aviona sa maksimalnim potiskom, pod pretpostavkom da postoji nesimetrično strujanje vazduha kroz dvostruki uvodnik i da ono ima uticaj na pojavu vibracija kompresora. Prikazano je merenje vibracija na avionu Galeb G-2 sa motorom Rolls Royce Viper Mk22-6 sa ciljem da se prepozna i definiše minimum neophodnih podataka koji bi ukazali na potencijalnu poremećenu struju vazduha kroz kompresor, kao posledicu nejednake raspodele vazdušne struje u uvodniku. Efikasnost ove metodologije merenja predstavljena je korišćenjem Furijeovih transformacija. Predložena metodologija merenja i analize može se sprovoditi na različitim tipovima aviona u cilju istraživanja pojave otcepljenja strujnica i pumpanja kompresora.This paper presents a practical example of the measurement and analysis of vibrations in the first two stages of the axial-flow compressor with intention to estimate a connection between inlet air flow distortions and appearance of stalling of the compressor blades. The inlet air flow distortions were tested during different regimes of the aircraft flight with a maximum thrust, with an assumption that the asymmetry of air flow through the twin-inlets existed and had effect on vibrations of the compressor. The paper shows the measurement of vibrations on the Galeb G-2 aircraft powered by the Rolls Royce Viper Mk22-6 engine with the aim to recognize and define the minimum necessary data for detection of the potential distorted air flow through the compressor, as consequences of an unequal air flow distribution in the inlets. The detection capability of this methodology of measurement is presented using the fast Fourier transform (FFT). The proposed methodology of measurement and analysis can be implemented in different types of aircraft in order to research the occurrence of stall and surge

Radiographic assessment of lower third molar eruption in different anteroposterior skeletal patterns and age-related groups

Objective: To analyze radiographic predictors for lower third molar eruption among subjects with different anteroposterior skeletal relations and of different age groups. Materials and Methods: In total, 300 lower third molars were recorded on diagnostic digital orthopantomograms (DPTs) and lateral cephalograms (LCs). The radiographs were grouped according to sagittal intermaxillary angle (ANB), subject age, and level of lower third molar eruption. The DPT was used to analyze retromolar space, mesiodistal crown width, space/width ratio, third and second molar angulation (alpha, gamma), third molar inclination (beta), and gonion angle. The LC was used to determine ANB, angles of maxillar and mandibular prognathism (SNA, SNB), mandibular plane angle (SN/MP), and mandibular lengths. A logistic regression model was created using the statistically significant predictors. Results: The logistic regression analysis revealed a statistically significant impact of 6 angle and distance between gonion and gnathion (Go-On) on the level of lower third molar eruption (P lt .001 and P lt .015, respectively). The retromolar space was significantly increased in the adult subgroup for all skeletal classes. The lower third molar impaction rate was significantly higher in the adult subgroup with the Class II (62.3%) compared with Class III subjects (31.7%; P lt .013). Conclusion: The most favorable values of linear and angular predictors of mandibular third molar eruption were measured in Class III subjects. For valid estimation of mandibular third molar eruption, certain linear and angular measures (beta angle, Go-On), as well as the size of the retromolar space, need to be considered

Measurement and analysis of vibrations of the axial-flow compressor caused by inlet flow instability during the flight of aircraft

U radu je prezentovan praktičan primer merenja i analize vibracija na prva dva stepena aksijalnog kompresora sa namerom da se proceni povezanost između poremećene ulazne struje vazduha i pojave otcepljenja strujnica od lopatica kompresora. Poremećenost ulazne struje vazduha je ispitivana tokom različitih režima leta aviona sa maksimalnim potiskom, pod pretpostavkom da postoji nesimetrično strujanje vazduha kroz dvostruki uvodnik i da ono ima uticaj na pojavu vibracija kompresora. Prikazano je merenje vibracija na avionu Galeb G-2 sa motorom Rolls Royce Viper Mk22-6 sa ciljem da se prepozna i definiše minimum neophodnih podataka koji bi ukazali na potencijalnu poremećenu struju vazduha kroz kompresor, kao posledicu nejednake raspodele vazdušne struje u uvodniku. Efikasnost ove metodologije merenja predstavljena je korišćenjem Furijeovih transformacija. Predložena metodologija merenja i analize može se sprovoditi na različitim tipovima aviona u cilju istraživanja pojave otcepljenja strujnica i pumpanja kompresora.This paper presents a practical example of the measurement and analysis of vibrations in the first two stages of the axial-flow compressor with intention to estimate a connection between inlet air flow distortions and appearance of stalling of the compressor blades. The inlet air flow distortions were tested during different regimes of the aircraft flight with a maximum thrust, with an assumption that the asymmetry of air flow through the twin-inlets existed and had effect on vibrations of the compressor. The paper shows the measurement of vibrations on the Galeb G-2 aircraft powered by the Rolls Royce Viper Mk22-6 engine with the aim to recognize and define the minimum necessary data for detection of the potential distorted air flow through the compressor, as consequences of an unequal air flow distribution in the inlets. The detection capability of this methodology of measurement is presented using the fast Fourier transform (FFT). The proposed methodology of measurement and analysis can be implemented in different types of aircraft in order to research the occurrence of stall and surge

Jačine i odnosi jačina mišića ekstenzora i fleksora kolena kod sportista nakon rekonstrukcije prednjeg ukrštenog ligamenta

Introduction Maximal strength ratios such as the limb symmetry index (LSI) and hamstring-to-quadriceps ratio (HQ) may be considered the main outcome measures in the monitoring of recovery after anterior cruciate ligament (ACL) reconstruction. Although explosive strength is much more important than maximal strength, it is generally disregarded in the follow-up of muscle function recovery. Objective The purpose of this study was to compare ratios between maximal (Fmax) and explosive strength (rate of force development - RFD) in individuals with ACL reconstruction. Methods Fifteen male athletes were enrolled and had maximum voluntary isometric quadriceps and hamstring contractions tested (4.0 ± 0.1 months post reconstruction). In addition to Fmax, RFD was estimated (RFDmax as well as RFD at 50, 100, and 200 ms from onset of contraction) and LS gt I and HQ ratios were calculated. Results The involved leg demonstrated significant hamstring and quadriceps deficits compared to uninvolved leg (p lt 0.01). Deficits were particularly significant in the involved quadriceps, causing higher HQ ratios (average 0.63), compared to the uninvolved leg (0.44). LSI was significantly lower for RFD variables (average 55%) than for Fmax (66%). Conclusion The assessment of RFD may be considered an objective recovery parameter for one's readiness to return to sports and should be an integral part of standard follow-up protocol for athletes after ACL reconstruction. Moreover, the combination of indices derived from maximal and explosive strength may provide better insight in muscle strength balance, as well as a clear picture of functional implications.Uvod Maksimalne jačine ekstenzora i fleksora kolena, njihov međusobni odnos (eng. hamstrings-to-quadriceps ratio; HQ), kao i indeks simetrije operisane i neoperisane noge (eng. limb symmetry index; LSI) važni su pokazatelji pomoću kojih se prati oporavak nakon rekonstrukcije LCA. Iako je za izvođenje brojnih funkcionalnih zadataka eksplozivna jačina važnija od maksimalne, ova sposobnost generalno je zanemarena u praćenju oporavka mišićne funkcije. Cilj rada bio je da se uporede odnosi (maksimalne jačine (Fmax) i odnosi eksplozivne jačine (eng. Rate of Force Development - RFD) kod sportista sa rekonstrukcijom LCA. Metode rada U studiju je uključeno 15 sportista, kojima je testirana maksimalna voljna izometrijska kontrakcija (MBK) ekstenzora i fleksora kolena (4,0 ± 0,1 meseca postoperativno). Pored Fmax, procenjivan je i RFD (RFDmax, kao i RFD na 50, 100 i 200 ms od početka kontrakcije) i računati odnosi jačine (LSI i HQ odnos). Rezultati Maksimalna jačina i ekstenzora i fleksora operisane noge bila je značajno niža nego kod neoperisane noge (p lt 0,01). Deficiti su bili posebno izraženi kod ekstenzora operisane noge, usled čega su i HQ odnosi na toj strani (prosečno 0,63) bili veći nego kod neoperisane noge (0,44). Indeks simetrije je bio značajno niži za varijable RFD (prosečno 55%) nego za Fmax (66%). Zaključak Procena eksplozivne jačine može biti još jedan objektivni pokazatelj oporavka i spremnosti za izlaganje specifičnim opterećenjima i kretnjama, zbor čega bi trebalo da bude deo standardnog protokola za praćenje sportista nakon rekonstpukcije LCA. Štaviše, kombinacija indeksa izvedenih iz maksimalne i eksplozivne jačine morala bi dati kompletniji uvid u balans jačine mišića za kretnje koje zahtevaju maksimalne i eksplozivne akcije, kao i jasnu sliku o funkcionalnim implikacijama

Analysis and Forecast of Foreign Trade Indicators of Corn in Bosnia and Herzegovina

The aim of this paper is to present the application of quantitative methods in the analysis of foreign trade indicators of corn in Bosnia and Herzegovina. Subsequently, based on the analysis, the forecast of import and export parameters was created for the 2018-20 period which predicted that corn imports and exports would increase both in the natural and value form. Furthermore, it was established for the observed period that Serbia was the largest importer of this crop to Bosnia and Herzegovina, and that Turkey was a country to which the corn from Bosnia and Herzegovina was mostly exported. The research in this paper can serve the purpose of further planning and development of both the production and the markets of this crop and agriculture as a whole

RELIABILITY AND GENERALIZABILITY OF CONSECUTIVE MAXIMUM CONTRACTIONS AS A TEST OF NEUROMUSCULAR FUNCTION

The aim of the study was to explore the intra- and inter- session reliability, generalizability, as well as the factorial validity of the recently proposed novel test of neuromuscular function. Twelve participants took part in the first experiment, performing the standard strength test (SST) and a novel test based on consecutive maximum contractions (CMC) tests on the knee extensor muscle. Within the second experiment, additional 36 participants performed the SST and CMC tests on the knee and elbow flexor and extensor muscles. The obtained results for the SST and CMC revealed high day by day and test-retest reliability in most measured variables (ICC in the range of 0.80 - 0.92). The principal component analysis (PCA) applied on the SST variables revealed 3 factors that explained 81.2% of the non-normalized and 66.1% of the normalized data. The PCA applied on all 16 non-normalized variables of the CMC test revealed 3 factors that explained 80% of the total variance. Another PCA with the rate of force development and relaxation (RFD and RFR) normalized in regards  to the PF revealed 4 factors that explained 70.9% of the total variance. Non-normalized factors were not loaded with different muscle groups, but with variables of the same muscle group. After the applied normalization, the individual factors were loaded with the variables recorded from individual muscles. The results of the CMC suggest that the ability of the RFD and RFR could be partially independent. The CMC may be a feasible alternative to SST since it could assess the same strength properties from muscles through a single trial, based on a relatively low and transient force