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V okolju, kemiji okolja in drugih študijah je določanje vsebnosti ogljika pomemben parameter. V večini primerov ni zanimiva samo skupna vsebnost ogljika v vzorcu, temveč tudi vsebnost organskega ogljika. Namen diplomske naloge je bil določiti natančnost postopka določitve totalnega ogljika in totalnega organskega ogljika v trdnih vzorcih. Za namen diplomskega dela je bilo potrebno pripraviti vzorce, zamenjati lonček, zgorevalno in absorpcijsko kolono na analizatorju EnviroTOC in opraviti meritve. Da so bili rezultati znotraj linearnega območja smo v sklopu diplomske naloge preučili kako zatehta posameznega vzorca vpliva na vrednost TC in na ponovljivost meritev. In environmental research, the determination of carbon content is an important parameter. In most cases, it is not only the total carbon content of the sample that is of interest, but also the organic carbon content. The aim of the thesis was to determine the accuracy of the procedure for the determination of total carbon and total organic carbon in solid samples. For the purpose of the thesis, it was necessary to prepare the samples, replace the crucible, combustion and absorption columns on the EnviroTOC analyser, and perform the measurements. To ensure that the results were within the linar calibration range, the thesis examined how the sample bias affects the TC value and the repeatability of the measurements.

Uvod: Cirtometrija ali meritve torako-abdominalnih obsegov, se v fizioterapiji uporablja za merjenje obsegov gibljivosti prsnega koša in trebuha. Obseg gibljivosti se meri z merilnim trakom na različnih ravneh prsnega koša v mirovanju, pri največjem vdihu in največjem izdihu. Izvedba meritev je preprosta in cenovno ugodna. Namen: Namen diplomskega dela je bil ovrednotiti ponovljivost in zanesljivost meritev torako-abdominalnega obsega gibljivosti, izmerjene s samozateznim merilnim trakom. Metode dela: V raziskavo je bilo vključenih 30 preiskovancev. Meritve smo izvedli v dveh sejah, med katerima je bilo teden dni premora. Preiskovanci so med meritvami stali z rokami sproščeno ob telesu. Meritve smo opravili v višini tretjega rebra in petega prsnega vretenca (aksilarno), žličke in desetega prsnega vretenca (ksifoidalno) ter popka in četrtega ledvenega vretenca (umblikalno). Na označene kostno-anatomske točke smo položili merilni trak ter izmerili obseg v mirovanju, pri največjem vdihu in pri največjem izdihu. Ponovljivost in zanesljivost meritev smo ovrednotili z intraklasnim koeficientom korelacije. Rezultati: Pri meritvah aksilarno so bile v vseh sejah statistično pomembne razlike. Največja razlika je bila med prvo in tretjo meritvijo druge seje v mirovanju. Razlike meritev obsegov ksifoidalno in umblikalno so bile statistično nepomembne. Med prvo in drugo sejo je do največjih razlik prišlo pri ksifoidalnih meritvah v mirovanju in po največjem vdihu. Ponovljivost meritev je bila na vseh ravneh odlična. Najnižja vrednost intraklasnega koeficienta korelacije je bila opažena pri aksilarnih meritvah prve seje v mirovanju in druge seje po največjem izdihu (IKK= 0,991). Najvišja vrednost intraklasnega koeficienta korelacije (IKK = 0,999) je bila zaznana pri vseh umblikalnih meritvah. Zanesljivost je bila na vseh ravneh odlična, intraklasni koeficient korelacije vseh meritev je bil nad 0,981. Razprava in zaključek: Izvedba meritev torako-abdominalnih obsegov z merilnim trakom je bila ponovljiva in zanesljiva. Do največjih odstopanj je prišlo pri meritvah na aksilarni ravni, na kar je verjetno vplivalo potenje preiskovancev. Potrebno je nameniti večjo pozornost klimatizaciji preiskovancev pred izvedbo meritev. Introduction: Cirtometry or thoraco-abdominal measurements of perimetry is used to measure the range of motion of the chest and abdomen. The range of motion is measured with a measuring tape at different levels of chest at rest, maximal inspiration and maximal expiration. Measurements are simple and affordable. Purpose: The aim of the diploma work was to evaluate the repeatability and reliability of measurements of the thoraco-abdominal range of motion. Methods: 30 subject were included in the research. The measurements were performed in two sessions, between which there was a one-week break. During the measurements, subject stood with their arms relaxed by their sides. Measurements were made at the height of the third rib and fifth thoracic vertebra (axillary), the xiphoid and tenth thoracic vertebra (xiphoidal) and the belly button and the forth lumbar vertebra (umbilical). We placed a measuring tape on the marked anatomical points and measured circumference at rest, at maximum inhalation and at maximum exhalation. The repeatability and reliability of the measurements were evaluated with the intraclass correlation coefficient. Results: There were statistically significant differences in axillary measurements in all sessions. The biggest difference was between the first and third measurements of the second session at rest. Differences of range of motion on xiphoidal and umbilical level were not statisticaly significant. Between the first and second sessions, the largest differences occurred in the xiphoid measurements at rest and after the maximum inspiration. The repeatability of measurements was excelent at all levels. The lowest value of the intraclass correlation coefficient was observed in the axillary measurements of the first session at rest and the second session after maximal exhalation (ICC = 0.991). The highest value of the intraclass correlation coefficient (ICC = 0.999) was detected in all umbilical measurements. Reliability was excellent at all levels and intraclass corelation coefficient was always above 0,981. Discussion and conclusion: The measuring of thoraco-abdominal circumferences with a measuring tape was repeatable and reliable. The largest deviations occured in measurements at the axillary level, which was probably influenced by subjects perspiration. Before starting the measurement it is necessary to familiarize th subjects with the procedure of the measurement.

Visual disturbances are commonly reported in patients with neck pain. Smooth pursuit neck torsion (SPNT) test performed in neutral position and with trunk rotated under the stationary head has been used to discriminate between those with cervical component and those without. However, no studies investigated the reliability of the SPNT-test in patients with chronic neck pain and healthy controls. The aim of this study was to assess inter-visit reliability of the SPNT-test while applying different amplitudes and velocities of target movement. Thirty-two controls and thirty-one patients were enrolled in the study. The SPNT-test was performed in neutral position and through 45° torsion positions. The test was performed at 20°/s, 30°/s and 40°/s velocities and at 30°, 40° and 50° amplitudes of cyclic sinusoidal target movements. Interclass correlation coefficient and smallest detectable change were calculated for parameters of gain and SPNT-differences. In patients, moderate to good reliability was observed for gain at 40° and 50° amplitudes and for 20°/s and 30°/s velocities, while moderate to excellent reliability for gain was observed in controls. Both groups presented with moderate to good reliability for SPNT-difference. Our findings imply that amplitudes of 40° and 50° and velocities of 20°/s and 30°/s are the most reliable and should be applied in future studies assessing oculomotor functions during the SPNT test.

Cilj istraživanja: Ispitati koliko su djeca i adolescenti sposobni ponoviti reportiranje utjecaja malokluzije pomoću Upitnika utjecaja malokluzije (MIQ). Ispitanici i metode: Uzorak je činilo 30 ispitanika od 10 – 17 godina koji su dolazili na ortodontski pregled u Osijek (Dom zdravlja Osječko-baranjske županije), Rijeku (KBC Rijeka), te učenici jednog razreda osnovne škole u Osijeku. Ispitanici su popunjavali MIQ instrument dva puta u razmaku od tjedan dana u kojem periodu nisu bili izloženi stomatološkim intervencijama (test- retest). Ponovljivost je analizirana pomoću intraklasnog korelacijskog koeficijenta i Wilcoxonovog testa za parove. Spearmanova korelacija je korištena za analizu povezanosti dobi i ponovljivosti, a Mann-Whitneyev test za usporedbu razlika u reportiranju MIQ između spolova. Rezultati: Prisutne su značajne razlike u reportiranju MIQ-a između dva vremenska intervala uz veliku veličinu efekta (p = 0, 004 ; r = 0, 520), no ponovljivost je bila znatna r = 0, 747 (95% CI 0, 521 – 0, 873 ; p < 0, 001). Jedan ispitanik je imao veliko odstupanje u reportiranju MIQ (23 skalarna poena), dok je središnja vrijednost odstupanja 1, 5 (interkvartilni raspon 1-3). Razlike u reportiranju MIQ nisu bile ovisne o dobi niti spolu. Ženski ispitanici su reportirali više skorove MIQ-a od muških ispitanika, no statistički značajno samo u T0 uz umjerenu veličinu efekta (p = 0, 043 ; r = 0, 369). Zaključak: Djeca i adolescenti imaju znatnu ponovljivost u reportiranju utjecaja malokluzije MIQ instrumentom, a slučajevi slabe ponovljivosti su izolirani.

Uvod: Meritve obsega sklepne gibljivosti so ključen del fizioterapevtske obravnave. Uporabljajo se za postavljanje ciljev obravnave, oceno izboljšanja/poslabšanja stanja, spremembo obravnave, motivacijo pacienta ter raziskave učinkov posameznih fizioterapevtskih metod in tehnik. Najpogosteje se uporablja tehnika goniometrije, najpogosteje uporabljen pripomoček pa je univerzalni goniometer. Namen: Namen diplomskega dela je ugotoviti ponovljivost in zanesljivost meritev aktivnega obsega gibljivosti v kolenskem sklepu z univerzalnim goniometrom. Metode dela: Raziskavo je odobrila Komisija za medicinsko etiko Republike Slovenije. V raziskavi je sodelovalo 40 zdravih preiskovancev (21 ţensk in 19 moških), ki so bili v povprečju stari 21,7 (1,1) let. Meritve so bile izvedene v dveh sejah, med katerima je minilo 48 ur. Preiskovanec je v vsaki seji izvedel tri zaporedne gibe fleksije in ekstenzije levega in desnega kolenskega sklepa. Rezultati: Pri meritvah obsega aktivne gibljivosti v smeri fleksije in ekstenzije ni bilo statistično pomembnih razlik med spoloma. Pri ugotavljanju ponovljivosti so bile vse vrednosti intraklasnega koeficienta korelacije višje od 0,9, kar kaţe na odlično ponovljivost, meritve fleksije so se izkazale za bolj ponovljive od meritev ekstenzije. Pri ugotavljanju zanesljivosti so se vrednosti intraklasnega koeficienta korelacije za meritve ekstenzije gibale med vrednostmi 0,6 in 0,8, kar nakazuje na zmerno do dobro zanesljivost meritev, za meritve fleksije pa so se vrednosti intraklasnega koeficienta korelacije gibale med vrednostmi 0,8 in 0,9, kar nakazuje na dobro do odlično zanesljivost. Prav tako so bile meritve fleksije bolj zanesljive od meritev ekstenzije. Najniţja vrednost najmanjše zaznane spremembe je bila 1,6° pri ekstenziji desnega kolenskega sklepa, najvišja vrednost pa je bila 2,3° pri fleksiji desnega in levega kolenskega sklepa. Razprava in zaključek: Univerzalni goniometer je naprava z odlično ponovljivostjo, ter dobro do odlično zanesljivostjo. Je preprost za uporabo, lahko dostopen in cenovno ugoden. Introduction: Measuring the extent of joint mobility is an important part of physiotherapy treatment. It is used to establish the goal of treatment, assess improvement, modify treatment, motivate the patient, and study the effects of specific physiotherapy methods and techniques. The most commonly used technique is the goniometric technique, with the universal goniometer being the most commonly used instrument. Purpose: The purpose of this thesis is to determine the repeatability and reliability of measuring active range of motion in the knee joint using a universal goniometer. Methods: The study was approved by the Republic Slovenia National Medical Ethics Committee. It included 40 healthy participants (21 women and 19 men) whose mean age was 21.7 (1.1) years. Measurements were performed in 2 sessions 48 hours apart. In each session, participants performed three consecutive flexion and extension movements with the left and right knee joints. Results: There were no statistically significant differences between the two sexes in the measurements of active range of motion toward flexion or extension. Regarding repeatability, all intraclass correlation coefficient values were above 0.9, indicating very good repeatability however, flexion measurements were found to be more repeatable than extension measurements. In determining reliability, the intraclass correlation coefficient values for the extension measurements ranged from 0.6 to 0.8, indicating good to moderate reliability of the measurement, while the intraclass correlation coefficient values for the flexion ranged from 0.8 to 0.9, indicating rather good to excellent reliability. Similarly, the flexion measurements were more reliable than the extension measurements. The lowest value of smallest detectable change was 1.6° in extension of the right knee joint and the highest value was 2.3° in flexion of both the right and left knee joints. Discussion and conclusion: The universal goniometer is a device with excellent repeatability and good to very good reliability. It is easy to use, accessible and affordable.

V prvem delu magistrske naloge je predstavljena optimizacija obstoječega stroja, ki je namenjen za odlaganje zalitih statorjev na paleto na tekočem traku, po katerem se ti odpeljejo na strojno pregledovanje. Statorji so zloženi na pladnjih, ki jih naložene na vozičke zapeljemo v stroj. Servomotorji zalogovnikov s pomočjo prijemal dvignejo pladenj na prenos, ki ga premika dodaten servomotor. Robot pobira vsak stator posebej, ga odnese na mesto odčitavanja QR kode, nato na preverjanje odtenka njegove barve ter na koncu na paleto, ki se nahaja na tekočem traku. Najprej je predstavljenih nekaj mehanskih predelav, ki so bile potrebne za zanesljivejše delovanje stroja. Opisan je program, ki vključuje: izdelavo programskega bloka za premikanje servomotorjev, izdelavo celotnega avtomatskega cikla zalogovnikov in prenosa, optimizacijo ročnega režima stroja, kodo za izvedbo zajemanja meritev pri analizi merilnega sistema senzorja barve ter optimizacijo zaslonov na kontrolnem panelu. Programiranje je potekalo na Siemensovem krmilniku in panelu s pomočjo njihovega programskega okolja TIA Portal. Stroj zajema meritve barvnih odtenkov statorjev, s pomočjo katerih je izvedeno preverjanje njihove toplotne obdelave. Zato je v drugem delu magistrske naloge predstavljena analiza merilnih sistemov, ki jo moramo izvesti na našem senzorju. Merilni sistemi morajo zagotavljati, da pri opravljanju meritev na pride do prevelikih odstopanj od realne vrednosti. Analiza zato merilnemu sistemu preverja stabilnost, ki predstavlja spreminjanje pristranskosti skozi daljše časovno obdobje, pristranskost, ki predstavlja razliko med referenčno vrednostjo in povprečjem nekega števila meritev, linearnost, ki prikazuje razliko pristranskost skozi celotno merilno območje sistema, ponovljivost, ki nam predstavlja razliko med zaporednimi meritvami enega merilca in obnovljivost, ki nam predstavlja razliko med povprečnimi meritvami posameznih merilcev. Merilni sistem našim zahtevam ustreza takrat, ko so vse naštete lastnosti znotraj mejnih vrednosti. The first part of the master's thesis presents the optimization of the existing machine, which is intended for depositing cast stators on a pallet laying on a conveyor belt, after which they are taken for machine inspection. The stators are stacked on trays, which are loaded onto carts, and then together loaded into machine. The storage servomotors lift the tray to the transmission by means of grippers, which is moved by an additional servomotor. The robot picks up each stator separately, takes it to the location of the QR code reading, then to check the hue of its color, and finally to the palette located on the conveyor belt. First, some mechanical modifications that were necessary for more reliable operation of the machine are presented. The program is described with the following: production of a program block for moving servomotors, production of a fully automatic cycle of storage and transmission, optimization of manual machine mode, code for performing measurement capture in color sensor measurement system analysis and screen control panel optimization. Programming took place on a Siemens system using their TIA Portal programming environment. The machine also includes measurements of the color shades of the stators, with the help of which the verification of their heat treatment is performed. Therefore, in the second part of the master's thesis, the analysis of measuring systems is presented, which we must perform on our sensor. Measuring systems must ensure that excessive deviations from the real value do not occur when performing measurements. The analysis of the measuring system checks the stability, which represents the change of bias over time, bias, which represents the difference between the reference value and the average of some measurements, linearity, which shows the bias difference throughout the measuring range of the system, repeatability, which represents the difference between successive measurements of one appraiser and reproducibility, which represents the difference between the average measurements of individual appraisers. Repeatability and reproducibility can be considered together to obtain a variance equal to the sum of the variations within the measurement system. The measuring system meets our requirements when all the listed properties are within the limit values.

Uvod: Najpogostejsˇi nacˇin merjenja gibljivosti sklepov so goniometricˇne meritve. Nekatere obsege gibljivosti lahko merimo tudi ali pa samo s centimetrskim trakom. Iz linearnih meritev pa lahko izračunamo obseg gibljivosti s pomočjo trigonometričnih enačb. Namen: Namen diplomskega dela je ovrednotiti ponovljivost in zanesljivost trigonometričnih meritev aktivnega obsega gibljivosti v kolenskem sklepu. Metode dela: V raziskavo je bilo vkljucˇenih 40 zdravih preiskovanev. Merjenja so potekala v dveh sejah s 48 urnim vmesnim premorom. Za ugotovljene razlik med posameznimi meritvami je bila opravljena enosmerna analiza variance za ponovljene meritve (p?0,05). Ponovljivost in zanesljivost smo vrednotili z intraklasnim koeficientom korelacije (2,1). Izračunali smo tudi najmanjšo zaznano spremembo. Rezultati: Pri preverjanju ponovljivosti je bila najnizˇja vrednost intraklasnega koeficienta korelacije (0,895) opazˇena pri meritvah fleksije levega kolenskega sklepa v drugi seji. Najvišja vrednost intraklasnega koeficienta korelacije (0,936) je bila opažena pri meritvah ekstenzije levega kolenskega sklepa v prvi seji ter pri meritvah fleksije levega kolenskega sklepa v prvi seji. Vse meritve so imele vrednosti intraklasnega koeficienta korelacije visˇje od 0,900, kar pomeni odlično ponovljivost. Meritve ekstenzije so se izkazale za bolj ponovljive od meritev fleksije. Pri računanju zanesljivosti ekstenzije je bila najnizˇja vrednost intraklasnega koeficienta korelacije pri meritvah, kjer smo uposˇtevali le tretjo meritev ekstenzije levega kolenskega sklepa (0,728). Najvisˇja vrednost intraklasnega koeficienta korelacije je bila pri povprečju treh meritev ekstenzije v desnem kolenskem sklepu (0,953). Pri meritvah zanesljivosti fleksije je bila najnizˇja vrednost intraklasnega koeficienta korelacije pri povprečju treh meritev fleksije levega kolenskega sklepa (0,784). Najvisˇja vrednost intraklasnega koeficienta korelacije je bila pri povprečju treh meritev fleksije desnega kolenskega sklepa (0,958). Vse meritve (razen ene) so imele vrednosti intraklasnega koeficienta korelacije visˇje od 0,750, kar pomeni dobro zanesljivost. Razprava in zaključek: Trigoniometricˇne meritve kolenskega sklepa so ponovljive in zanesljive, nekoliko bolj pri meritvah ekstenzije kot pri merjenju aktivnega giba fleksije kolenskega sklepa. Zanesljivost je primerljiva z drugimi, zˇe izvedenimi raziskavami. Podatkov o ponovljivosti v literaturi nismo zasledili. Introduction: The most common way of measuring joint mobility is goniometric measurements. Measurements are performed with a universal goniometer. We carry them out in order to obtain objective measurements of the flexibility of a particular joint. Some ranges of motion can also be measured only with a centimetre tape. From linear measurements, the range of motion can be calculated using trigonometric equations. Because measurements are usually conducted by different therapists, the intratester reliability is very important. Purpose: The purpose of the thesis was to identify the repeatability and reliability of trigonometric measurements of the active range of motion in the knee joint. Methods: The study involved 40 healthy subjects.. Measurements were made in two sessions within a 48.. The differences between the measurements were assessed by the analysis of the variance for repeated measurements (p⡤0.05). Repeatability and reliability were evaluated by intraclass correlation coefficient (2,1). We also calculated the lowest real difference. Results: In the repeatability test, the lowest value of the intraclass correlation coefficient (0.895) was observed when measuring the flexion of the left knee joint in the second session. The highest value of the intraclass correlation coefficient (0.936) was observed in the measurements of the extension of the left knee joint in the first session and in the measurements of the flexion of the left knee joint in the first session. All measurements had values of intraclass correlation coefficient higher than 0.900, which means excellent repeatability. Extension measurements proved to be more reproducible than flexion measurements. When calculating the reliability of the extension, the lowest value of the intraclass correlation coefficient was in the measurements, where only the third measurement of the extension of the left knee joint was considered (0.728). The highest value of the intraclass correlation coefficient was in the average of three measurements of extension in the right knee joint (0.953). In flexibility reliability measurements, the lowest value of the intraclass correlation coefficient was the average of the three left knee flexion measurements (0.784). The highest value of the intraclass correlation coefficient was in the average of three measurements of right knee joint flexion (0.958). All measurements (except one) had values of intraclass correlation coefficient higher than 0.750, which means good reliability. Discussion and conclusion: Trigoniometric measurements of the knee joint are repeatable and reliable, slightly more in the measurements of extension than in the measurement of the active movement of the knee joint flexion. Reliability is comparable to the other research already conducted. No data on repeatability were found in the literature.

Uvod: Merjenje je bistven del vseh empiričnih družboslovnih in naravoslovnih znanosti. Vsaka stvar, ki obstaja je v določeni količini. Goniometrija je najbolj pogosto uporabljena tehnika za merjenje sklepne gibljivosti. Obseg gibljivosti sklepa se meri za odkrivanje omejitev v sklepni gibljivosti in za oceno pacientovega napredka v rehabilitaciji. Ker se meritve opravijo večkrat in pogosto pri različnih fizioterapevtih, je zato pomembna zanesljivost preiskovalca in inštrumenta. Namen: Namen diplomskega dela je ugotoviti ponovljivost in zanesljivost meritev aktivnega obsega gibljivosti v kolenskem sklepu z digitalnim goniometrom z enim krakom. Metode dela: V raziskavi je sodelovalo 40 preiskovancev (21 žensk in 19 moških), povprečno starih 21,7 (1,1) let. Moški so bili v povprečju pomembno višji, težji z višjim indeksom telesne mase. Meritve so bile opravljene v dveh sejah z razmikom 48 ur. V vsaki seji so bile opravljene tri zaporedne meritve obsega gibljivosti ekstenzije in fleksije. Rezultati: Med spoloma ni bilo pomembnih razlik v aktivnem obsegu gibljivosti kolena v smeri ekstenzije, so pa ženske imele pomembno večji obseg aktivne gibljivosti pri gibu fleksije v obeh kolenih. Obstajala je pomembna razlika v aktivnem obsegu gibljivosti med levim in desnim kolenom v smeri ekstenzije samo pri moških, v smeri fleksije pa tako pri moških kot ženskah. Pri preverjanju ponovljivosti je bila najnižja vrednost intraklasnega koeficienta korelacije (0,784) bila pri meritvah ekstenzije levega kolenskega sklepa v prvi seji, najvišja (0,952) pa pri meritvah fleksije desnega kolenskega sklepa v drugi seji. Meritve fleksije so bile bolj ponovljive od meritev ekstenzije. Pri preverjanju zanesljivosti smo najboljše rezultate dobili, če smo izračunali povprečje treh zaporednih meritev. Najnižjo vrednost intraklasnega koeficienta korelacije (0,649) smo izračunali pri meritvah ekstenzije levega kolena, najvišjo (0,893) pa pri meritvah fleksije desnega kolena. Meritve fleksije so bile bolj zanesljive od meritev ekstenzije. Razprava in zaključek: Digitalni goniometer je enostavna uporabna naprava, za merjenje obsegov gibljivosti sklepov, ki je primerna tudi za začetnike. Poleg tega omogoča tudi shranjevanje podatkov. Goniometrija kolenskega sklepa z digitalnim goniometrom je postopek z dobro do odlično ponovljivostjo in zadovoljivo do dobro zanesljivostjo, če meritve opravi začetnik. Introduction: Measurement is an essential part of all empirical social sciences and natural sciences. Everything that exists is in a certain amount. Goniometry is the most commonly used technique for measuring joint mobility. The extent of joint mobility is measured to detect limitations in joint mobility and to assess the patient's progress in rehabilitation. Because measurements are made multiple times and often by different physiotherapists, the reliability of the investigator and the instrument is therefore important. Purpose: The purpose of this diploma work is to determine the repeatability and reliability of measurements of the active range of motion in the knee joint using digital goniometer. Methods: 40 subjects (21 women and 19 men) participated in the study, with an average age of 21.7 (1.1) years. Men were, on average, significantly taller, heavier with a higher body mass index. Measurements were performed in two sessions with an interval of 48 hours. Three consecutive measurements of the extent of extension and flexion mobility were performed in each session. Results: There were no significant differences between the sexes in the active range of motion of the knee in the direction of extension, but women had a significantly higher range of active mobility in the flexion movement in both knees. There was a significant difference in the active range of motion between the left and right knee in the direction of extension only in men, and in the direction of flexion in both men and women. In the repeatability test, the lowest value of the intraclass correlation coefficient (0.784) was in the measurements of the extension of the left knee joint in the first session, and the highest (0.952) in the measurements of the flexion of the right knee joint in the second session. Flexion measurements were more reproducible than extension measurements. When checking reliability, we obtained the best results if we calculated the average of three consecutive measurements. The lowest value of the intraclass correlation coefficient (0.649) was calculated in the measurements of the left knee extension, and the highest (0.893) in the measurements of the right knee flexion. Flexion measurements were more reliable than extension measurements. Discussion and conclusion: The digital goniometer is a simple and useful device for measuring the range of motion of joints, which is also suitable for beginners. In addition, it also allows data storage. Knee joint goniometry with a digital goniometer is a procedure with good to excellent repeatability and satisfactory to good reliability if beginner makes the measurements.

Uvod: Meritve gibljivosti sklepov so pomemben del celostne fizioterapevtske preiskave ter omogočajo fizioterapevtom natančnejšo oceno disfunkcije in napredka v procesu rehabilitacije. Pri opravljanju goniometričnih meritev z univerzalnim goniometrom lahko zaradi nenatančnosti preiskovalca dobimo napačne vrednosti obsega gibljivosti. Digitalni goniometrični sistem nima te težave, saj digitalni inklinometer pravilno izmeri obseg gibljivosti, ko je nameščen v skladu z navodili. Namen: Namen diplomskega dela je ugotoviti ponovljivost in zanesljivost goniometričnih meritev obsega gibljivosti kolena z digitalnim goniometričnim sistemom. Metode dela: V raziskavi je sodelovalo 40 študentov (21 žensk in 19 moških), povprečno starih 21,7 leta. Meritve so bile opravljene v dveh sejah z razmikom 48 ur. V vsaki seji so bile opravljene tri zaporedne meritve obsega gibljivosti ekstenzije in fleksije. Rezultati: Pri preverjanju ponovljivosti je bila najnižja vrednost intraklasnega koeficienta korelacije (0,754) opažena pri meritvah ekstenzije desnega kolenskega sklepa v prvi seji. Najvišja vrednost intraklasnega koeficienta korelacije (0,887) je bila pri meritvah ekstenzije levega kolenskega sklepa v seji 2. Vse meritve so imele vrednosti intraklasnega koeficienta korelacije višje od 0,75, kar pomeni dobro ponovljivost. Meritve fleksije so se izkazale za bolj ponovljive od meritev ekstenzije. Pri računanju zanesljivosti ekstenzije je bila najvišja vrednost intraklasnega koeficienta korelacije (0,898) izračunana glede na povprečje treh meritev. Pri meritvah zanesljivosti fleksije je bila najvišja vrednost intraklasnega koeficienta korelacije (0,897) izračunana glede na mediano treh meritev. Vse meritve so imele vrednosti intraklasnega koeficienta korelacije višje od 0,75, kar pomeni dobro zanesljivost. Razprava in zaključek: Digitalni goniometrični sistem je ponovljiva in zanesljiva metoda za merjenje obsega gibljivosti. Z digitalnim goniometričnim sistemom ni mogoče izmeriti prstnih sklepov in samo nameščanje digitalnega inklinometra na ude je lahko zamudno. Uvod: Meritve gibljivosti sklepov so pomemben del celostne fizioterapevtske preiskave ter omogočajo fizioterapevtom natančnejšo oceno disfunkcije in napredka v procesu rehabilitacije. Pri opravljanju goniometričnih meritev z univerzalnim goniometrom lahko zaradi nenatančnosti preiskovalca dobimo napačne vrednosti obsega gibljivosti. Digitalni goniometrični sistem nima te težave, saj digitalni inklinometer pravilno izmeri obseg gibljivosti, ko je nameščen v skladu z navodili. Namen: Namen diplomskega dela je ugotoviti ponovljivost in zanesljivost goniometričnih meritev obsega gibljivosti kolena z digitalnim goniometričnim sistemom. Metode dela: V raziskavi je sodelovalo 40 študentov (21 žensk in 19 moških), povprečno starih 21,7 leta. Meritve so bile opravljene v dveh sejah z razmikom 48 ur. V vsaki seji so bile opravljene tri zaporedne meritve obsega gibljivosti ekstenzije in fleksije. Rezultati: Pri preverjanju ponovljivosti je bila najnižja vrednost intraklasnega koeficienta korelacije (0,754) opažena pri meritvah ekstenzije desnega kolenskega sklepa v prvi seji. Najvišja vrednost intraklasnega koeficienta korelacije (0,887) je bila pri meritvah ekstenzije levega kolenskega sklepa v seji 2. Vse meritve so imele vrednosti intraklasnega koeficienta korelacije višje od 0,75, kar pomeni dobro ponovljivost. Meritve fleksije so se izkazale za bolj ponovljive od meritev ekstenzije. Pri računanju zanesljivosti ekstenzije je bila najvišja vrednost intraklasnega koeficienta korelacije (0,898) izračunana glede na povprečje treh meritev. Pri meritvah zanesljivosti fleksije je bila najvišja vrednost intraklasnega koeficienta korelacije (0,897) izračunana glede na mediano treh meritev. Vse meritve so imele vrednosti intraklasnega koeficienta korelacije višje od 0,75, kar pomeni dobro zanesljivost. Razprava in zaključek: Digitalni goniometrični sistem je ponovljiva in zanesljiva metoda za merjenje obsega gibljivosti. Z digitalnim goniometričnim sistemom ni mogoče izmeriti prstnih sklepov in samo nameščanje digitalnega inklinometra na ude je lahko zamudno.

Soul Split je prototip za igro, ki spada v žanr Roguelike. Za te igre je značilno, da imajo nekakšno proceduralno generiranje stopenj z namenom povečanja možne ponovljivosti igranja. V Soul Split se mora igralec premakniti skozi večje število naključno generiranih stopenj, prispeti do konca in na poti premagati veliko različnih sovražnikov. V sklopu tega dela bomo opisali ustvaritev sistemov za pripravo sob in stopenj, mehanizmov igre in algoritmov, ki so potrebni za pravilno delovanje prototipa, ter opis uporabe objektno orientiranega programskega pogona Unity, ki je bil uporabljen za izdelavo tega diplomskega dela. Soul Split is a prototype of a game, belonging to the genre Roguelike. For these games, it is typical to include a sort of procedural stage generation to increase the amount of possible replayability available in the game. In Soul Split, the player has to move through multiple randomly generated levels, reach the end, and beat a lot of enemies along the way. In this work, we describe the creation of the systems for room and stage preparation, game mechanics and algorithms which are needed for the prototype to function correctly and the usage of the object-based programing engine Unity, which was used for the creation of this diploma thesis.

Uvod: Časovno merjeni »ulezi se in vstani« test je bil zasnovan z namenom ugotavljanja funkcijske zmogljivosti zdravih odraslih. Namen: Namen diplomskega dela je bil ugotoviti ponovljivost in zanesljivost »ulezi se in vstani« testa pri zdravih odraslih preiskovancih ter ugotoviti povezanost izvedbe testa z antropometričnimi spremenljivkami. Metode: V raziskavo je bilo vključenih 30 prebivalcev Občine Bohinj, starih med 18 in 65 leti, med njimi 15 žensk in 15 moških. Test smo izvedli dvakrat z vmesnim 48-urnim premorom. Ponovljivost in zanesljivost testa smo izračunali s pomočjo intraklasnega korelacijskega koeficienta, standardne napake meritev ter najmanjše zaznane spremembe. Povezanost izvedbe testa z antropometričnimi spremenljivkami smo preverjali s Pearsonovim korelacijskim koeficientom. Rezultati: Povprečni čas treh ponovitev za izvedbo testa je znašal 4,7 sekunde v prvi seji in 4,9 sekunde v drugi seji. Ponovljivost je bila odlična, saj je intraklasni koeficient korelacije znašal 0,986 (IZ95% =0,975-0,993) v prvi seji in 0,990 (IZ95%=0,982-0,995) v drugi seji. Prav tako je bila odlična zanesljivost. Intaklasni koeficient korelacije je bil 0,989 (IZ95% =0,977-0,995). Standardna napaka merjenja je znašala 0,45 sekunde, najmanjša zaznana sprememba pa 1,24 sekunde. Ugotovili smo dobro povezanost izvedbe testa s starostjo preiskovancev in zmerno povezanost izvedbe testa z indeksom telesne mase in obsegom pasu preiskovancev. Sklep: »Ulezi se in vstani« test ima odlično ponovljivost in zanesljivost, zato ga priporočamo za ocenjevanje funkcijske zmogljivosti zdravih odraslih. Najprimernejši izračun izida je povprečje treh ponovitev. Potrebno bi bilo raziskati še veljavnost testa. Introduction: Timed “Lay down and get up” test was designed to evaluate functional capacity of healthy adults. Purpose: The purpose of the study was to determine repeatability and reliability of the timed »Lay down and get up« test in healthy adult subjects and to determine correlation between performance of the test with anthropometric variables. Methods: Thirty adults aged between 18 and 65 years (15 woman and 15 men) living in Bohinj municipality comprised the study sample. The test was performed twice with 48-hour break. Repeatability and reliability of the »Lay down and get up« test were calculated using intraclass correlation coefficient, standard error of measurement and the minimum detectable change. The correlation of the performance of the test with anthropometric variables was verified by Pearson's correlation coefficient. Results: The average time of three repetitions to perform the test was 4.7 seconds in the first session and 4.9 seconds in the second session. Repeatability was excellent, as the intraclass correlation coefficient was 0.986 (CI95%= 0,975-0,993) in the first session and 0.990 (CI95% = 0,982-0,995) in the second session. Reliability was excellent as well, as the intraclass correlation coefficient was 0.989 (CI95%= 0,977-0,995). Standard error of measurement was 0.45s and minimum detectable change was 1.24s. Good correlation was found between the performance of the test and the age of subjects and moderate correlation was found between the performance of the test and body mass index and the belt circumference of the subjects. Discussion and conclusion: »Lay down – get up« test is a clinical test with excellent repeatability and reliability. Therefore we recommend the test to evaluate functional capacity of healthy adults. The most appropriate calculation of the outcome is taking the average time of three repetitions into account. Validity still needs to be researched.

Uvod: Lumbalna spinalna stenoza pomeni zožitev ledvenega spinalnega kanala, kar lahko povzroči utesnitev hrbtenjače in/ali živčnih korenin. Je kronično stanje z več let trajajočimi nespecifičnimi bolečinami v spodnjem delu hrbta, ki se kasneje kaže kot progresivno slabšanje s prehodnimi epizodami hujših bolečin v spodnjem delu hrbta in vzdolž spodnjih okončin. Namen: Ugotoviti, kateri testi telesne zmogljivosti in funkcije so veljavni in zanesljivi za ocenjevanje zmožnosti ljudi z lumbalno stenozo spinalnega kanala. Metode dela: Uporabljena je bila deskriptivna metoda raziskovanja. Pregledana je bila strokovna in znanstvena literatura v podatkovnih zbirkah Medline, PubMed, ScienceDirect in The Spine Journal. Rezultati: Test hoje po tekoči podlagi ima visoko stopnjo kratkoročne zanesljivosti z nizko stopnjo neskladnosti. Dobra korelacija je med napovedano razdaljo sposobnosti hoje in testom Self-Paced Walking Test, pri katerem pacient hodi, dokler ga ne ustavijo simptomi. Najveljavnejša sta testa Oswestry Disability Index, in sicer kategorija hoje ter samoocena prehojene razdalje. Razprava in zaključek: Hoja je glavni kazalnik funkcijskega stanja pri pacientih z lumbalno spinalno stenozo in se jo najpogosteje ocenjuje z vprašalniki. Najpogosteje uporabljena vprašalnika sta Physical Function Scale in Oswestry Disability Index. Vprašalnik Physical Function Scale je namenjen oceni funkcijskega stanja pacientov z lumbalno spinalno stenozo, vprašalnik Oswestry Disability Index se uporablja za oceno bolečine v spodnjem delu hrbta. Najbolj veljavne in ponovljive meritve so kategorija hoje po Oswestry Disabilty Index, test hoje po tekoči podlagi ter kategorija hoje po Physical Function Scale. Introduction: Lumbar spinal stenosis is constriction of the lumbar spinal canal, which can cause the spinal cord and / or nerve roots to cramp. It is a chronic condition with several years of non-specific lower back pain and can later lead to a progressive deterioration with transient episodes of severe back pain and pain along the lower limbs. Purpose: The purpose is to determine which physical movement tests and functions are valid and reliable for assessing the capacities of people with stenosis of the spinal canal. Methods: A descriptive method of research was used. Professional and scientific literature was reviewed in Medline, PubMed, ScienceDirect and The Spine Journal. Results: The track belt test shows a high level of short-term reliability with a low degree of inconsistency. A good correlation is between the predicted walking distance and the Self-Paced Walking Test, where the patient is walking until the symptoms are stop him. We get the most valid correlation in the Oswestry Disability Index questionnaire - the walking category and self-assessment of the distance traveled with validity. Discussion and conclusion: Walking is the main indication of functional status of patients with lumbar spinal stenosis, so pre-prepared specific questionnaires that acess a certain feature are used. The most used questionnaires are Physical Function Scale and Oswestry Disability Index. The Physical Function Scale questionnaire is intended to assess the functional status of patients with lumbar spinal stenosis, while the Oswestry Disability Index questionnaire is used to assess the pain in the lower back or to assess the categories within the questionnaire. The most valid and reproducible measurements are the Oswestry Disability Index, a walk on a running carpet and a Physical Function Scale walking category.

Uvod: Občutenje na stopalu nas varuje pred poškodbami in sodeluje pri uravnavanju gibanja tako, da zagotavlja informacije za ohranjanje ravnotežja med hojo in stojo. Kvantitativno ocenimo zaznavni prag za dotik z monofilamenti. Pražne vrednosti zaznav lahko variirajo od lahnega dotika do grobega pritiska. Namen: Pregled izsledkov raziskav o ponovljivosti in zanesljivosti ocenjevanja zaznavnega praga za dotik z monofilamenti na spodnjih udih. Metode: Raziskovalni članki so bili pridobljeni v podatkovni zbirki PubMed do konca oktobra 2017. Rezultati: V pregled je bilo vključenih 12 člankov. V eni raziskavi so ugotavljali ponovljivost ocenjevanja in v 10 zanesljivost posameznega preiskovalca in med preiskovalci s Semmes-Weinsteinovimi monofilamenti ter v eni zanesljivost med preiskovalci z Weinsteinovim izboljšanim testom občutenja (Weinstein enhanced sensory test, WEST). Ocenjevanje je ponovljivo le v primeru, da so monofilamenti pravilno umerjeni (CV: 6–9 %). Zanesljivost za posameznega preiskovalca je bila pri zdravih odraslih v štirih raziskavah nizka do odlična (ICC = 0,36–0,92), pri pacientih s sladkorno boleznijo v dveh raziskavah nizka do odlična (ICC = 0,49–0,92) in pri pacientih z gobavostjo v dveh raziskavah dobra do odlična (ICC = 0,83–0,92). Zanesljivost med preiskovalci s Semmes-Weinsteinovimi monofilamenti je bila pri zdravih odraslih v dveh raziskavah nizka do odlična (ICC = 0,07–0,92), pri zdravih šolskih otrocih v eni raziskavi dobra do odlična (ICC = 0,88–0,96), pri pacientih s sladkorno boleznijo v dveh raziskavah nizka do dobra (ICC = 0,46–0,88) in pri pacientih z gobavostjo v treh raziskavah dobra do odlična (ICC = 0,76–0,95). Zanesljivost je bila dobra do odlična (ICC = 0,76–0,96) v šestih raziskavah, ko so ocenjevali izkušeni preiskovalci. Najbolj zanesljivo ocenjevanje je bilo na 1. prstu in 1. stopalnici na plantarni strani stopala (ICC = 0,52¬–0,94) in pri določitvi zaznavnega praga 2/3 (vsaj dve zaznavi od treh prejetih dražljajev) (ICC = 0,88–0,95), 2/2 (ICC = 0,92–0,94) in 3/3 (ICC = 0,61–0,92). Zanesljivost med preiskovalci z WEST pri pacientkah s hallux valgus je bila dobra (ICC = 0,84). Zaključek: Ocenjevanje zaznavnega praga z monofilamenti je najbolj zanesljivo ko ocenjuje isti izkušen preiskovalec, in sicer na področju 1. prsta in glavici 1. stopalnice plantarno in določi zaznavni prag z 2/3 (vsaj dve zaznavi od treh prejetih dražljajev) ali z 2/2. Ponovljivost sil monofilamentov je optimalna, vendar bi bilo potrebno ponovljivost raziskati še na ljudeh. O zanesljivosti ocenjevanja so potrebne nadaljnje raziskave pri pacienti z nevrološkimi okvarami, starejših odraslih, otrocih in tudi pri sladkornih bolnikih. Introduction: Foot sensitivity protects us from injuries and participates in posture control by providing information during standing and walking. Touch detection threshold can be quantitatively assessed with monofilaments. Detection threshold values can vary from light touch to deep pressure. Purpose: To review studies of repeatability and reliability of touch threshold assessment with monofilaments on lower limbs. Methods: Research articles were conducted using database PubMed until the end of October 2017. Results: 12 articles were included in the review. One study established repeatability, and 10 studies intra-rater and inter-rater reliability of Semmes-Weinstein monofilaments, and in one study interrater reliability of assessment with Weinstein enhanced sensory test (WEST) was established. Use of monofilaments is repeatable if filaments are well calibrated (CV: 6–9 %). Intra-rater reliability was poor to excellent (ICC = 0.36–0.92) in four studies with healthy adults, poor to excellent (ICC = 0.49–0.92) in two studies with diabetic patients and good to excellent (ICC = 0.83–0.92) in two studies with leprosy patients. Inter-rater reliability was poor to excellent (ICC = 0,07–0,92) in two studies with healthy adults, good to excellent (ICC = 0.88–0.96) in one study with healthy school children, poor to good (ICC = 0.46–0.88) in two studies with diabetic patients and good to excellent (ICC = 0.76–0.95) in three studies with leprosy patients. In six studies reliability was good to excellent (ICC = 0.76–0.96) when assessment was done by experienced researchers. Most reliable assessment was performed on plantar surface of the 1. digit and the 1. metatarsal head (ICC = 0.52¬–0.94) and when detection threshold was determinated with 2/3 (at least two detections out of three applications) (ICC = 0.88–0.95) or 2/2 answers (ICC = 0.92–0.94). Interrater reliability with WEST was good (ICC = 0.84) in patients with hallux valgus. Conclusions: Assessment of touch threshold with monofilaments is most reliable if performed by experienced researchers on plantar surface of the 1. digit and the 1. metatarsal head and if touch threshold is determinate with 2/3 (at least two detections out of three applications) or with 2/2 answers. Monofilaments are repeatable tool, but repeatability of their use should be established on humans. Further studies of reliability are needed in patients with neurological disorders, older adults, children and diabetic patients.

Determining the in-situ engineering parameters of sandy soils has always been a challenge for geotechnical engineers, resulting in several methods having been developed so far. The Perth Sand Penetrometer (PSP) test is one of the most versatile of these methods. It is a considerably faster and cheaper tool than boring equipment, especially when the depth of the exploration is moderate. In the present research, a methodology for the use of a PSP device to evaluate the engineering parameters of sandy soils in laboratory conditions is discussed and the repeatability of the test results is studied. First of all, the tests were performed on typical Tehran young alluvial deposits (poorly graded sandy soil, SP) consistently prepared to 5 densities using the sand raining or pluviation technique. Next, the normal and logNormal distributions of the test data using the Kolmogorov-Smirnov normality test were examined. After that, based on the obtained results, the relationship types between the dynamic point resistance index (qd) and other parameters, such as the relative density (Dr), the modulus of elasticity (E), the shear modulus (G) and the friction angle of the soil, were determined. The results show that the obtained relationships were semi-logarithmic and logarithmic, and most of the obtained experimental formulas had a high coefficient of determination (>90%). To evaluate the accuracy of the results, 95% confidence and prediction bands were also used and the results show that all the obtained experimental relationships were appropriate. Finally, the repeatability of the test results was evaluated by calculating the coefficient of variations, which was less than 30% for all the tests. Določanje in-situ inženirskih parametrov peščenih zemljin je bil vedno izziv za geotehnične inženirje, zaradi česar je bilo do sedaj razvitih več metod. Preizkus s Perthovim penetrometrom za peske (PSP) je ena od najbolj vsestranskih metod. Je bistveno hitrejše in cenejše orodje kot vrtalna oprema, še posebej, če je globina raziskovanja zmerna. V prikazani raziskavi je obravnavana metodologija za uporabo naprave PSP za ovrednotenje inženirskih parametrov peščenih zemljin v laboratorijskih pogojih in preučevana ponovljivosti rezultatov preizkusa. Najprej so bili izvedeni preizkusi na tipičnih teheranskih mladih naplavinah (slabo granulirana peščena zemljina, SP), na vzorcih petih različnih gostot, navlaženih s pršenjem ali zalivanjem. Dalje so bile proučene običajne in logNormal porazdelitve podatkov o preizkusih z uporabo Kolmogorov-Smirnov testa normalnosti porazdelitve. Nato pa so bile, na podlagi dobljenih rezultatov, določene vrste razmerij med dinamičnim točkovnim indeksom odpora qd in drugimi parametri, kot so relativna gostota (Dr), modul elastičnosti (E), strižni modul (G) in trenjski kot zemljine. Rezultati kažejo, da so dobljeni odnosi pol-logaritmični in logaritmični, večina dobljenih eksperimentalnih enačb ima visok koeficient določanja (>90%). Za oceno natančnosti rezultatov je bil uporabljen interval zaupanja meritev pri 95% zanesljivosti. Rezultati kažejo, da so bili vsi dobljeni eksperimentalni odnosi ustrezni. Nazadnje je bila ponovljivost rezultatov testov ocenjena z izračunom koeficienta variacije, ki je bil za vse teste manjši od 30%.

V pričujočem diplomskem delu smo opisali snovanje in postopke izdelave linearnega enkoderja, ki deluje na principu zaznavanja usmerjene gostote magnetnega polja. Pri izdelavi diplomskega dela smo se naučili precej novih stvari, čeprav večine zadanih ciljev nismo dosegli. Kljub temu smo med izdelavo pridobili precej izkušenj in znanja za izdelavo potencialnih naslednjih serij enkoderjev. Med izdelavo diplomskega dela smo naleteli na nove težave, ki jih nismo dovolj dobro upoštevali pri začetnem načrtovanju. Velik problem predstavlja temperaturna občutljivost, ki pa je še vedno nismo dokončno analizirali. V prihodnje bi morali ugotoviti, kako vsaka komponente posebej prinese k temperaturni občutljivosti enkoderja. Dodaten problem, ki ga nismo upoštevali pri snovanju, je prisotnost remanenčne gostote magnetnega polja v kroglicah, še preden so te vstavljene v enkoder. This thesis focuses on describing design and procedures of making linear encoder, that works by sensing directed magnetic flux density. During the procedure of making encoder, we learned a lot of new things although we didn't achieve most of desired goals. However we were still able to learn from the process itself and obtain broad knowledge that is required for further development. We discovered new problems that had not anticipated in designing process. In the future we should explore how much each component effects temperature sensitivity. Another problem that occurred in design was presence of remanent magnetic flux density which had been present in balls even before they were inserted into encoder.

Uvod: Časovno merjeni Test petih vstajanj s stola se uporablja kot orodje za ugotavljanje gibalnih sposobnosti starejših ljudi. Prvotno se je test uporabljal za ugotavljanje moči spodnjih udov. Sedaj pa se poleg tega uporablja tudi za posredno ocenjevanje drže in ravnotežja. Tako lažje poiščemo posameznike, ki so ogroženi za padce. Problem predstavlja veliko različnih izvedb testiranja. Namen Ugotoviti ponovljivost in zanesljivost Testa petih vstajanj s stola, izmerjenega z mobilno aplikacijo »Test to go«. Metode dela: V raziskavi je sodelovalo 32 študentov, trije moški in 29 žensk, v povprečju (standardni odklon) starih 21,2 (0,8) let. S pomočjo mobilne aplikacije smo s študenti dvakrat, v razmiku 48 ur izvedli meritve. Pri vsaki meritvi so imeli preiskovanci na voljo 3 poskuse. Iz danih rezultatov smo izračunali intraklasni korelacijski koeficient (IKK) in 95% interval zaupanja. Rezultati: Skupni IKK je znašal le 0,44. Višje vrednosti IKK so bile pri drugi meritvi tj. po 48 urah. Izračunani IKK za 2. in 3. poskus pri obeh meritvah je 0,60 - 0,66. 95% interval zaupanja pa je bil širok, saj znaša od 0,11 do 0, 68. Merjene vrednosti so bile zelo različne. Razprava in sklep: Na osnovi dobljenih rezultatov skupnega IKK lahko sklepamo, da je Petkratni test vstajanja, merjen z mobilno aplikacijo, komaj sprejemljivo zanesljivo merilno orodje. Če pa upoštevamo samo IKK drugega in tretjega poskusa, pa je test zmerno zanesljiv, saj je izračunani IKK precej višji. Zato bi bilo smiselno testiranju dodati poskusno izvedbo testa. Preiskovanci bi že pri prvem poskusu imeli izkušnjo, ki bi jo le utrdili. Introduction: Five times sit to stand test is used as s measuring tool for determining motor abilities of elderly people. Originally, the test was used to determine the strength of lower limbs. Now is also used for indirect assessment of posture and balance. So it is easier to find risk individuals. The problem arises from different test implementations. Purpose: The purpose of the study is to determining the repeatability and reliability of the Five times sit to stand test, measured with mobile application »Test to go«. Methods: The study involved 32 students, 3 male and 29 female, both on average (standard deviation) 21.2 (0.8) years old. We made two measurements, which were 48 hours apart. At each measurement subjects had three attempts. From the given results, we calculated interclass correlation coefficient (ICC) with the 95% confidence interval. Results: Interclass correlation coefficient was only 0.44. Total ICC from the second and the third measurement was higher than the overall measurements, in which the values are between 0.60 and 0.66. 95% confidence interval is very wide, ranging from 0.11 to 0.68. All the measured values are very different. Discussion and conclusion: The adjustment results show that the Five times sit to stand test, which was implemented using a mobile application, is an unreliable measurement tool. It is necessary to add a pilot test. Thus, the patient experience after the first attempt could be strengthened in the following ones.

V diplomski nalogi bomo preverjali ustreznost optičnega merilnega sistema v primerjavi z merilnim koordinatnim strojem, profilomerom ter merilno kamero. Na vsakem od zgoraj naštetih strojev bomo izvedli določeno število meritev ter nato ugotavljali ustreznost optičnega merilnega sistema. Ugotavljanje ustreznosti optičnega merilnega sistema bo potekalo na neobdelanem ulitku iz aluminija. Za vsak stroj posebej bomo izračunali raztros posameznega stroja, največjo razliko med maksimalno in minimalno vrednostjo ter raztros oziroma ponovljivost samega stroja. In this thesis we will verify the adequacy of the optical measuring system in comparison with the coordinate measuring machine, contour measuring machine and measuring camera. In each of the above mentioned machines we will perform a certain number of measurements and then we will find out if the optical measuring system is suitable for use. All measurements will be performed on a rough aluminium casting. For each machine separately the scatter / dispersion and the highest difference between the maximum and minimum value will be calculated.

Uvod: Razmerja med padci, ravnotežjem in hojo so zapletena, zato so razvili številne teste ravnotežja in hoje, da bi z njimi napovedali tveganje za padce. Namen: Ugotoviti razliko med spoloma, med dominantno in nedominantno nogo, med položajema in ponovljivost medio-lateralnega testa stopanja. Metode dela: V raziskavi je sodelovalo 60 (30 žensk, 30 moških) mladih zdravih preiskovancev. Opravili so test stopanja v medio-lateralni smeri, v sedečem in stoječem položaju. Pridobljene podatke smo statistično obdelali. Rezultati: Moški so v primerjavi z ženskami hitrejši oziroma so dosegli boljše rezultate. Vrednosti ICC za posameznika so pokazale zadovoljivo zanesljivost. Dominanca uda pomembno vpliva na izvedbo testa, predvsem v stoječem položaju. Razprava in sklep: Na podlagi rezultatov lahko govorimo o dobri zanesljivosti medio-lateralnega testa stopanja. Dodatna testiranja bi bilo dobro opraviti predvsem glede dominance uda. Introduction: Relation between falls, balance and walking are complex. For this reason, many balance tests as well as walk tests were developed – in order to predict the risks of falling. Purpose: The purpose of this final thesis is to determine differences between genders, between dominantly and non-dominantly extremity, between positions and repeatability of the medio-lateral step test. Methods: Research included 60 younger subjects who performed the test of stepping in the medio-lateral direction in a sitting and standing position. The data obtained were statistically analyzed. Results: In comparison with women, men were faster and have shown better results. ICC values for individual showed satisfactory reliability. Dominance of the leg has a significant impact on the execution of the test, especially in an upright position. Discussion and conclusion: Based on the results, we can speak about the reliability of the medio-lateral stepping test. However, the dominance of the extremity should be a subject of further research.

U radu su prikazani rezultati laboratorijskih ispitivanja jednoosne tlačne čvrstoće stijena provedeni u Laboratoriju za ispitivanje tla i stijena društva Geotehnički studio d.o.o. te u Geomehaničkom laboratoriju Rudarsko–geološko– naftnog fakulteta Sveučilišta u Zagrebu. Cilj laboratorijskih ispitivanja bio je utvrđivanje ponovljivosti i obnovljivosti rezultata ispitivanja određivanja jednoosne tlačne čvrstoće stijena koja je jedno od najvažnijih i najčešće određivanih svojstava stijenskog materijala pri gradnji i ostalim inženjerskim zahvatima u stijenskoj masi. Za potrebe ispitivanja korišteni su uzorci vapnenačkih stijena iz kamenoloma „Korenići“ u Istri. Obzirom na problematiku heterogenosti stijenskog materijala, ranijim istraživanjima dokazano je da sloj oznake F ima svojstvo približno homogenog materijala te su uzorci iz tog sloja korišteni za laboratorijska ispitivanja. Rezultati provedenih ispitivanja interpretirani su u skladu sa zahtjevima ispitne norme ASTM D 7012 – 14 Određivanje jednoosne tlačne čvrstoće stijena. Obnovljivost i ponovljivost rezultata ispitivanja bile su unutar granica propisanih ispitnom normom.

The aim of the study was to determine internal consistency and retest reliability of the Croatian version of PAQ-C on a sample of 6-10 years old children and to report physical activity levels of elementary school pupils. The same set of questions was administered to the pupils on two different occasions, three weeks apart. Both testing rounds for 8-10 years old pupils were conducted at school in the presence of an experienced researcher. In contrast, the 6-8 years old pupils took the questionnaires home and completed them with parental help. A total of 81 pupils (participation rate 65%) filled out the questionnaire at both time points. Internal consistency for the 6- to 8-year-old group, as assessed by Cronbach’s alpha, was .51 and .69 for the first and second measure, respectively. For the 8- to 10-year-old group, Cronbach’s alpha for the first and second measure was .77 and .75, respectively. Average Intraclass Correlation Coefficient (ICC) between total physical activity levels of the first and second measure was .56 (95% IC .05 – .76) and .75 (95%CI .54 – .86) for the 6- to 8-year-old and 8- to 10-year-old group, respectively. Results of the present study support the use of the Croatian version of PAQ-C to assess the physical activity levels of 8- to 10-year-old pupils. In contrast, the current evidence indicates that PAQ-C will not reliably assess parental-reported physical activity levels of children younger than 8 years., Cilj ovog istraživanja bio je utvrditi internu konzistenciju i retest pouzdanost hrvatske inačice PAQ-C upitnika na uzorku djece u dobi od 6 do 10 godina te izvijestiti o razini tjelesne aktivnosti učenika razredne nastave. Isti set pitanja primijenjen je na učenicima dva puta s vremenskim razmakom od tri tjedna. Oba mjerenja učenika u dobi od 8 do 10 godina održana su u školi uz prisustvo iskusnog istraživača. Suprotno tome, učenici u dobi od 6 do 8 godina ispunjavali su upitnik kod kuće, uz pomoć roditelja. Ukupno 81 učenik (85 %) ispunio je upitnik u obje vremenske točke. Interna konzistencija procijenjena Cronbachovom alfom kod skupine u dobi od 6 do 8 godina iznosila je .51 za prvo mjerenje, odnosno .69 za drugo mjerenja. Kod skupine od 8 do 10 godina, za prvo mjerenje Cronbahova alfa iznosila je .77, a za drugo mjerenje .75. Prosječan Intraclass Correlation Coefficient (ICC) između rezultata ukupne tjelesne aktivnosti prvog i drugog mjerenja iznosio je 0.56 (95% IC .05 – .76) za skupinu u dobi od 6 do 8 godina, odnosno .75 (95%CI 0.54 – 0.86) za skupinu u dobi od 8 do 10 godina. Rezultati ovog istraživanja podupiru korištenje hrvatske inačice PAQ-C upitnika za procjenu razine tjelesne aktivnosti učenika u dobi od 8 do 10 godina. Nasuprot tome, trenutni dokazi upućuju na to kako PAQ-C upitnik neće pouzdano procijeniti razinu tjelesne aktivnosti učenika mlađih od 8 godina.

V diplomskem delu sem si zastavil nalogo merjenja nivoja tekočine v fekalni posodi avtodoma. Zasnoval sem merilni sistem, ki je namenjen, da vzdrži pogoje avtomobilske industrije z različnimi snovmi v merjeni tekočini. Merilni sistem rezultate prikazuje v programu , ki je preprost za vsakega uporabnika. Naloge sem se lotil tako, da sem pregledal vse obstoječe rešitev senzorjev, ki bi lahko prišli v poštev pri izdelovanju diplomskega dela in se na koncu odločil za tista dva, ki sta najprimernejša za mojo raziskavo – tlačnega in kapacitivnega. Z izbiro mikrokrmilnika, ki je bil uporabljen kot vmesni člen med senzorjem in uporabniškim vmesnikom, sem prikazoval merjene podatke. Pogoje za preizkušanje senzorjev sem naredil sam doma. Po opravljenih meritvah sem ugotovil da je kapacitivni senzor občutljiv na razne spremembe tekočine. Torej ob destilirani vodi ali pa vodi z smetmi in gosto peno, je senzor meril drugače kot pa pri običajni vodi. Tlačni senzor je deloval konstantno tudi pri vodi z smetmi in gosto peno, vendar pa je prišlo do velikih sprememb pri nizkih in visokih temperaturah. Po vseh opravljenih testiranjih sem zbral podatke in jih uredil v tabele in grafe. Dodal sem tudi izračun absolutnega in relativnega pogreška ter ponovljivost. Na koncu vseh meritev bi se odločil za tlačni senzor saj je bolj zanesljiv, natančnejši in bolj preprost za namestitev v merjen rezervoar. In the thesis I planned measuring system with the task of measuring the liquid level in the tank fecal container. I designed a measuring system that is designed to withstand the conditions of the automotive industry with various substances in the liquid being measured. Results of my measurement system are shown in a program that is easy for each user. First I had to review of all the existing solutions and sensor. I chose two of the most suitable – pressure sensor and capacitive sensor. By selecting a microcontroller, which is used as an interface between the sensor and the user interface, I show the measured data. The measuring conditions were done at home with house hold sources (deep freeze, heat fan). After measurements, I found that the capacitive sensor is sensitive to various changes in the fluid. So when distilled water or water with debris and dense foam, sensor behaved differently than in normal water. Pressure sensor is operated constantly even in water with debris and thick foam, but there have been major changes at low and high temperatures. Upon completion of all testing, I collected information and edited in tables and graphs. I went on to calculate the absolute and relative error and repeatability. In the end, I would use the pressure sensor because it is more reliable, more accurate and easy to install in the tank measured.

The aim of the research was to estimate genetic parameters for litter size in Romanov breed reared in Croatia. A total of 10723 phenotypic records, and all available pedigree information (4097 individuals) were used to estimate variance components with the repeatability animal model. Age at lambing, parity, and season were fitted in the fixed part of the model, while herd, permanent (non genetic) effect of an animal, and direct additive genetic effect of the animal were fitted in the random part of the model. The estimated heritability (r2=0.06), and repeatability (r2=0.07) are in line with previous reports for this breed, and its crossbreds abroad.

Diplomsko delo opisuje razvoj naprave za hitro preizkušanje elektronskega vezja žarilne svečke s tipalom tlaka. Naprava nadomešča dizelski motor – vzpostaviti mora takšne tlačne razmere, kot so v valju med običajnim delovanjem motorja. Zasnoval sem napravo s pnevmatskim cilindrom, ki ustvarja silo na konico svečke. Cilinder je krmiljen z elektromagnetno proženim ventilom, silo pa nastavljamo z regulatorjem tlaka. Razvil sem krmilno elektroniko, ki proži ventil, njena dodatna funkcija pa je napajanje svečke. Elektronika potrebuje za delovanje enosmerno napajanje in proženje preko funkcijskega generatorja. Izhodni signal svečke spremljamo z osciloskopom. Preveril sem ponovljivost pri delovanju naprave, ki se je izkazala za dobro, in predpisal uporabo etalona za zagotavljanje kakovosti meritev. The thesis describes development of a device for quick testing of pressure sensor glow plug's electronic circuit. The device subtitutes a diesel engine – it has to establish such pressure conditions as are in a cylinder during normal engine operation. I designed a device with a pneumatic cylinder that applies force to the tip of a glow plug. The cylinder is controlled by an electromagnetically actuated valve and the force is adjusted by a pressure regulator. I developed control electronics that actuates the valve. Its additional function is powering the glow plug. DC power supply and trigger with a function generator are needed for the circuit to operate. The output of a glow plug is monitored with an oscilloscope. I checked the device's operation repeatability which proved to be good and prescribed usage of a standard for quality assurance of measurements.

U svrhu boljeg kontroliranja ali i poboljšavanja proizvodnih procesa potreban je kvalitetan mjerni sustav koji mjeri značajke procesa. U ovom radu opisani su postupci za analizu mjernih sustava (procjenu kvalitete mjernih sustava). Navedene su i opisane osnovne sastavnice mjernog sustava, te su definirani mjeriteljski pojmovi i statističke veličine za procjenu kvalitete mjernog sustava. Postoji razlika u analizi mjernih sustava, ovisno o tome dali se taj mjerni sustav koristi u laboratorijskim uvjetima ili u industrijskim uvjetima. Kod analize laboratorijskih mjernih sustava potrebno je analizirati dali postoje grube pogreške u izmjerenim podacima. To se radi sa različitim testovima koji su opisani u ovome radu. Potom se radi usporedba rezultata mjerenja. Sve metode za usporedbu rezultata mjerenja i testovi za određivanje grubih pogrešaka opisani su u radu i u skladu su sa normom ISO 5725:1994, te su dani primjeri provedbe analize takvog jednog laboratorijskog mjernog sustava. Mjerni podaci se općenito dijele na mjerljive i atributivne . Iz toga proizlazi da se i metode za procjenu kvalitete tih sustava moraju razlikovati ovisno o tipu podataka. U radu su opisane sve metode za procjenu kvalitete inustrijskih mjernih sustava i za mjerljive i za atributivne podatke. Metode su popraćene primjerima u svrhu lakšeg razumjevanja. Za analizu podataka u industriji koriste se različiti softverski paketi za jednostavnije računanje opisanih metoda, pa se pri izradi ovog rada koristio takav jedan program pod nazivom Minitab 16-probna verzija. U radu je također procijenjen utjecaj kvalitete mjernog sustava na procjenu sposobnosti procesa. Kvaliteta mjernog sustava u laboratorijskim uvijetima se u posljednje vrijeme najčešće procjenjuje izračunom mjerne nesigurnosti. U radu je opisana GUM metoda za određivanje mjerne nesigurnosti. Mjerna nesigurnost je najvažniji statistički podatak u mjeriteljstvu, a procjenjuje se radi nedvosmislenog iskazivanja i usporedbe mjernih rezultata dobivenih u različitim umjernim i ispitnim laboratorijima ali i radi usporedbe mjernih rezultata sa specifikacijama proizvođača ili zadanom tolerancijom. Izračun mjerne nesigurnosti popraćen je primjerom.

In this paper, the possibility to create uniform porous structure for non- symmetric precursor heating was investigated together with changes in collapse stress and their reproducibility. The statistic relative standard deviation (RSD) of pore size was used to determine the structural uniformity. It was shown that proper adjustment of the foaming parameters leads to formation of the uniform foam structure. The compression testing showed that standard deviation of collapse stress was higher for uniform structure than those obtained for non- uniform structure., U ovome radu istražena je mogućnost stvaranja jednolike porozne strukture nesimetričnim zagrijavanjem prekursora, te su isto tako istražene promjene lomnog naprezanja i njihova ponovljivost. Statistička relativna standardna devijacija (RSD) veličine pora koristila se za određivanje strukturne jednolikosti. Pokazano je da pravilan odabir parametara upjenjavanja dovodi do nastajanja jednolike strukture. Tlačna proba je pokazala da je vrijednost standardne devijacije lomnog naprezanja veća za jednoličnu strukturu od onih ostvarenih za nejednoliku strukturu.

U epidemiološkim studijama koje se bave procjenom unosa hrane i prehrambenim navikama važno je koristiti precizne i pouzdane metode. Cilj ovog istraživanja bio je ispitati ponovljivost metode kvantitativnog upitnika o učestalosti konzumiranja namirnica (FFQ) za koje se pretpostavlja da su pozitivno ili negativno povezane s nastankom alergijskih bolesti dišnog sustava. U ovom ispitivanju sudjelovalo je ukupno 106 studenata (28 mladića i 78 djevojaka) prve godine studija Sveučilišta u Zagrebu. Prosječna dob ispitanika bila je 19 godina (raspon od 18 do 44 godine). Koeficijent Spearmanove korelacije tjedne učestalosti konzumiranja namirnica kretao se od 0, 37 (P

Adekvatan unos kalcija i folne kiseline tijekom rane odrasle dobi smanjuje rizik od pojave kroničnih bolesti u kasnijoj životnoj dobi. Cilj rada je bio ispitati valjanost i ponovljivost upitnika o učestalosti konzumiranja hrane i piča (FFQ) za procjenu unosa kalcija i folata u studentskoj populaciji u cilju njegove daljne primjene, te procjena prehrambenog statusa i kaqkvoće prehrane. Istraživanje je provedeno na studentima iz kontinentalne i primorske regije. FFQ za procjenu unosa kalcija, za razliku od FFQ za folat, nije pokazao valjanost obzirom na korelacijske koeficijente, ali su oba FFQ pokazala jako dobru ponovljivost. Primjenom Bland-Altmanova metode može se zaključiti da se oba FFQ mogu primjeniti za procjenu unosa ciljanih mikronutrijenata studentske populacije. U prosjeku studenti iz obje regije su adekvatno uhranjeni, imaju odgovarajući udjel i raspodjelu maqsnog tkiva i statistički se ne razlikuju s obzirom na regiju. Prehrana studenata u prosjeku je bila adekvatna obzirom na udio makronutrijenata, a deficitarna nekim mikronutrijentima (kalij, vitamin A, cink, željezo i magnezij).

V Gorenje Orodjarna izdelujemo orodja za preoblikovanje pločevine za dobavitelje karoserijskih delov v avtomobilski industriji. V sklopu orodja se zahteva tudi izdelava kontrolne priprave, ki omogoča kontrolo izdelkov iz orodij pod enakimi pogoji, kot bodo nastopili pri montaži in uporabi. V diplomski nalogi je dokumentiran proces izdelave kontrolne priprave s poudarkom na meritvah. Do sedaj takega dokumenta v Gorenju Orodjarna ni bilo. Ker sem v Gorenju Orodjarna edini strokovno usposobljen na tem področju, se je pojavila potreba po dokumentiranju postopkov in metod pri procesu izdelave kontrolne priprave Vpeljal sem delitev kontrolnih priprav na vpenjalne in merilne priprave. S tem je odpravljeno nejasno opisovanje v tehnično tehnološki mapi zahtev ob pričetku projekta. Diplomska naloga na kratko prikaže proces izdelave kontrolne priprave in ga podrobno vodi skozi proces meritve. Prikazani so primeri in podana dovoljena odstopanja pri meritvi. Gorenje Orodjarna produces tools to transform the sheet metal for the bodywork parts suppliers in the automotive industry. In the context of the tools required for production of control appliance which allow control of the products of the tools under the same conditions as they occur in the installation and use. The Thesis is a documented process of manufacture of the control appliance, with emphasis on measurements. Such document did no exist in Gorenje Orodjarna until now. Since I am in Gorenje Orodjarna only technically competent in this area, there is need for documentation of procedures and methods in the process of manufacture of the control appliance. I introduced the division of control appliances for the fixture and measuring appliances. This is a vague description to avoid the technical requirements of technological folder at the start of the project. Thesis briefly displays the process of manufacture of the control appliance and detail through the process of measurement. They are examples and given the tolerances in the measurement.

The paper presents the analysis of results of inter-laboratory proficiency tests performed in accordance with standard ISO 5725. The methodology for evaluation of each individual laboratory through definition of critical interval and deviation coefficient Z is presented together with methodology for determination of repeatability and reproducibility through calculation and graphical presentation of Mendel's parameters 'h' i 'k' and statistics of Cochran's test 'C'. The approach is illustrated through analysis of results of interlaboratory testing for evaluation of characteristics of asphalt mixes in which 4 accredited laboratories have participated and which was initiated by the Laboratory for roads and geotechnics of the IMS Institute. . U radu je prikazan postupak analize rezultata međulaboratorijskog uporednog ispitivanja u skladu sa standardom ISO 5725. Posebno su obrađeni metodologija za vrednovanje rada pojedinih laboratorija preko određivanja kritičnog intervala i koeficijenta odstupanja Z, kao i određivanje ponovljivosti i reproducibilnosti preko definisanja i grafičke predstave Mendelovih parametara 'h' i 'k' i određivanja statistike Košranovog testa 'C'. Postupak je ilustrovan na analizi rezultata međulaboratorijskog uporednog ispitivanja karakteristika asfaltnih mešavina, u kome su učestvovale 4 akreditovane laboratorije, a inicijator je bila Laboratorija za puteve i geotehniku Instituta IMS u Beogradu. .

Osnovna namjena alatnih strojeva je omogućiti obradu dijelova traženih oblika i dimenzija, prihvatljive točnosti uz što veću ekonomičnost. Današnji zahtjevi na proizvodno tržište sve su stroži, kako na povećanje kvalitete, varijantnosti proizvoda tako i na brže vrijeme isporuke. Kako bi pratili te zahtjeve nužno je posjedovati alatni stroj koji posjeduje odgovarajuću točnost izrade i radnu točnost. U ovom radu obrađuju se upravo metode ispitivanja stroja koje opisuju točnost i funkcionalnost numerički upravljanog alatnog stroja. U prvom dijelu rada opisuju se osnovne komponente i značajke numerički upravljanog alatnog stroja koje utječu na njegovu točnost, mjerna oprema koja se za to koristi i načini na koje se mogu provesti mjerenja. Nakon mjerenja pokušava se na temelju rezultata definirati što je uzrokovalo grešku, te način na koji se može ispraviti, sve u vidu povećanja točnosti stroja. Način na koji će se vršiti mjerenja i ocjenjivanje rezultata definiran je normom ISO 230-2 koja se primjenjuje za ispitivanje točnosti i ponovljivosti pozicioniranja numerički upravljanih osi stroja. Vrlo je važno na koji se način mjere greške na stroju što je i prikazano u poglavlju 4., odnosno ispitivanjem volumetričke točnosti pozicioniranja. Mjerenjem dijagonala u radnom prostoru dolazi se do informacija o svim greškama na stroju, za razliku od linearnih mjerenja, jer linearna grešaka samo je jedna od volumetričkih grešaka. Generiranjem kompenzacijskih datoteka i korištenjem u upravljačkoj jedinici stroja, pokazuje se da mjerenje volumetričkih grešaka bitno utječe na točnost stroja. U nastavku rada izvršeno je ocjenjivanje rezultata mjerenja dobivenih u zavisnosti od načina pozicioniranja te je prikazana metoda obrade podataka ISO 230-2 standardom, kojima se opisuju točnost i ponovljivost pozicioniranja numerički upravljanih alatnih strojeva.

U diplomskom radu ispitana je preciznost mjerenja visinskih razlika nivelirom Wild NA2 pomoću ISO 17123-2 norme i ISO 5725 norme. ISO 17123-2 je međunarodno priznata norma za ispitivanje preciznosti mjerenja nivelirom. Ova norma kao mjeru preciznosti koristi empirijsko standardno odstupanje. ISO 5725 je norma za ispitivanje preciznosti i kompatibilnosti mjerenja unutar i između mjeriteljskih laboratorija, koja kao mjere preciznosti navodi mjernu ponovljivost i mjernu obnovljivost. Krajnji rezultat praktičnog dijela su mjere preciznosti dobivene ispitivanjem nivelira: standardno odstupanje sISO-LEV, mjerna ponovljivosti r i mjerna obnovljivosti R. Cilj ovog ispitivanja je na osnovi usporedbe rezultata izvesti zaključak i dati preporuku o prikladnosti korištenja ISO 5725 norme za ispitivanje geodetskih instrumenata.

In 2005 the variation of clutch size of tree sparrows Passer montanus was investigated in the Mokrice rural area, north-western Croatia. Average clutch size of first clutches was 5.00 eggs (SD = 0.62), of the second 5.36 eggs (SD = 0.66) and of the third 4.86 eggs (SD = 0.71). Repeatability (r) of clutch size in first, second and third clutches (within-year) was significant (p = 0.005). This means that 33% of the variation in clutch size is due to intraindividual variation of genetic factors (intrinsic »female quality«)., Obilježja promjenjivosti veličine pologa poljskog vrapca Passer montanus istraživana su na području sela Mokrice (Hrvatsko zagorje, sjeverozapadna Hrvatska) 2005. godine. Prosječna veličina pologa prvog gniježđenja iznosi 5,00 jaja (SD = 0,62), drugog 5,36 jaja (SD = 0,66) i trećeg gniježđenja 4,86 jaja po gnijezdu (SD = 0,71). Ponovljivost (repeatability, r) između prvog, drugog i trećeg pologa iznosi 0,33 i statistički je značajna (p = 0,005). Znači da se 33% varijacija u veličini pologa odnosi na genetičke čimbenike (intrinsic »female quality«).

Prikazani su rezultati međulaboratorijskog ispitivanja granulometrijskog sastava kamenog materijala frakcije 0 – 4 mm obrađeni metodom analize varijance (ANOVA). Eksperiment je planiran trofaktorskim stupnjevitim modelom. Procijenjene su varijance ponovljivosti i obnovljivosti te prijelazne varijance među nizovima rezultata dobivenih u različitim uvjetima obnovljivosti. Iskazivanje prijelazne varijance važno je radi određivanja utjecaja heterogenosti agregata na svakoj razini ispitivanja., Results of interlaboratory testing of the stone aggregate fraction 0 – 4 mm, analysed by variance analysis method (ANOVA), are presented. The experiment was planned with the three-factor staggered- nested model. The repeatability and reproducibility variances, and intermediate precision variances among ranges of results obtained under various reproducibility conditions, were estimated. The estimation of intermadiate variance is significant for determining the influence of heterogeneity of aggregates at each level of testing.

The aim of this study was to compare two extraction procedures: dynamic headspace-purge and trap (PT) and headspace solid-phase microextraction (HS-SPME) for gas chromatographic determination of benzene, toluene, ethylbenzene, and isomeric xylenes (BTEX) in urine with photoionization (PID) and mass spectrometric (MS) detection, respectively. Both methods showed linearity in the range of interest [(50-2000) ng L-1], good accuracy (80% to 100 %), and repeatability (RSD≤11 %). Detection limits were in the low ng L-1 level for both methods, although slightly greater sensitivity was found for the PT method. In comparison with PT, HS-SPME was simpler and required less time for analysis. Although the analytical features of both examined methods are appropriate for biomonitoring of environmental exposure to BTEX, only the HS-SPME-GC-MS method is recommended for routine analysis of BTEX in urine. The method was applied for the quantitative analysis of BTEX in urine samples collected from non-smokers (n=10) and smokers (n=10)., Cilj ovog rada bio je usporediti dva postupka ekstrakcije za plinskokromatografsko određivanje benzena, toluena, etilbenzena i izomera ksilena u urinu. Uspoređene su dinamička analiza para iznad otopine (tzv. purge and trap) uz fotoionizacijski detektor i mikroekstrakcija analita na čvrstoj fazi uz detektor spektrometar masa. Rezultati upućuju na linearnost odziva detektora u ispitivanome koncentracijskom području [(50- 2000) ng L-1], zadovoljavajuću točnost (80 %-100 %) i ponovljivost (RSD ≤11 %). Postignute su niske granice detekcije za obje metode. Mikroekstrakcija analita na čvrstoj fazi uz detektor spektrometar masa pokazala se jednostavnijom i bržom za izvođenje pa se preporučuje za rutinsko određivanje BTEX-a u urinu. Metoda je primijenjena za analizu tih spojeva u uzorcima urina nepušača (n=10) i pušača (n=10).