Wastewater characterisation of screen printing

The paper presents a preliminary investigation of wastewater quality in screen printing facilities in Novi Sad. The experimental research includes two selected parameters: pH value and BOD. The measured pH values were in the range of maximum allowed values, but very high BOD values indicate dominant organic pollution. Determined BOD values of collected samples were in the range from 36 - 206 mg/1. These BOD values show great organic pollution of wastewater from screen printing facilities with biodegradable organic matter

Multihazard susceptibility assessment: A case study – Municipality of Štrpce (Southern Serbia)

The municipality of Štrpce (Southern Serbia) is an area located within Šar Mountain National Park, which is of great ecological importance. Due to the vicinity of settlements, it is necessary to analyze the terrain's susceptibility to natural hazards. The main goal of this research was to determine locations that are highly vulnerable at times of natural hazards (such as earthquakes, erosion, torrential flooding, snow avalanches, and forest fires). The first step in this research was to analyze seismic hazards for a 475 years return period (VII–VIII MCS for the observed area), which was possible by means of Geographic Information Systems. The second step was to determine the intensity of erosion and total sediment production using the Erosion Potential Model. The third step was related to the analysis of the potential of torrential floods using the Flash Flood Potential Index. The Avalanches Potential Index method was used as the fourth step. The fifth step included the analysis of a terrain susceptibility to the occurrence of forest fires. Following the five criteria analysis, weight coefficients were assigned to each of the analyzed parameters by using the Analytical Hierarchy Process (AHP), which provided results of the total susceptibility to natural hazards of the territory of Štrpce. Results indicated that over 45% of the municipality is highly or very highly susceptible to various natural hazards. This article represents a significant step toward a better understanding of natural hazards and it provides a unique knowledge basis for establishing the management and mitigation guidelines and measures, not only within the researched area but at regional and national levels as well

Kondition och skärmtid hos ungdomar med ADHD : Samband mellan skärmtid och kondition hos ungdomar med och utan ADHD

Syfte och frågeställningar | Undersöka sambandet mellan kardiovaskulär kondition och skärmtid, samt undersöka skillnader i kardiovaskulär kondition samt skärmtid hos ungdomar med Attention Deficit Hyperactivity Disorder (ADHD) och hur det skiljer sig från ungdomar utan ADHD. Frågeställningar: 1. Hur skiljer sig kondition (beräknad VO2max) hos ungdomar med och utan ADHD? 2. Hur skiljer sig skärmtid hos ungdomar med ADHD från ungdomar utan ADHD? 3. Hur ser sambandet ut mellan skärmtid och kondition hos ungdomar med samt utan ADHD diagnos?  Metod | Studien inkluderar 1139 ungdomar från 34 skolor i åldersspannet 13–14 år. Studien är en tvärsnittsstudie som är en del av en större studie ”Physical Activity for Healthy Brain Functions in School Youth” genomförd 2019 baserad på kvantitativ data där kardiovaskulär kondition uppskattades i ml/kg/min efter utfört Ekblom-Bak submaximala cykel ergometer test. Skärmtid samt allmän beskrivande data (kön, ålder, vikt och längd) baserades på enkätfrågor och inhämtad data från SCB kring socioekonomisk bakgrund.  Resultat | Resultaten visade ingen signifikant skillnad i VO2max (ml/kg/min) mellan ungdomar med ADHD och utan ADHD (p = 0.333). Vid kontroll av kön, föräldrautbildning och BMI kunde en signifikant skillnad visas (β = -3.398 ml/kg/min, p = 0.014). Vid analys av skillnader i skärmtid under en vanlig vardag och en vanlig helgdag var inte skillnaden signifikant mellan ungdomar med ADHD och utan ADHD (vardag p = 0.269, helgdag p =0.275). Det fanns ett signifikant samband hos ungdomar utan ADHD vid uppskattad VO2maxoch skärmtid vardag 3–4 timmar (β = -1.993 ml/kg/min, p &lt;0.001), vardag ≥5 timmar (β = -2.066 ml/kg/min, p = 0.004), helgdag ≥5 timmar (β = -2.244 ml/kg/min, p = 0.003) jämfört med referens 0–2 timmar. För ungdomar med ADHD kunde inget signifikant samband för samtliga kategorier av skärmtid utläsas (p = 0.786, p = 0.060, p = 0.392, p = 0.806).  Slutsats | Denna studie påvisar en signifikant skillnad i VO2max mellan ungdomar med och utan ADHD, medan ingen signifikant skillnad i skärmtid observerades. Uppmätt signifikant samband mellan kardiorespiratorisk kondition och skärmtid en vanlig vardag ≥3, samt skärmtid en vanlig helgdag ≥5 timmar hos ungdomar utan ADHD kunde tydas. Däremot sågs inget sådant samband hos ungdomar med ADHD. Ytterligare forskning föreslås med större stickprov på ungdomar med ADHD samt kontroll av diagnos och medicinering.Aim | To investigate the associations between cardiorespiratory fitness and screen time, also investigate the differences in cardiorespiratory fitness as well as screen time for adolescents with Attention Deficit Hyperactivity Disorder (ADHD) and how it differs from adolescents without ADHD. Questions posed: 1. How does cardiorespiratory fitness (calculated VO2max) differ in adolescents with and without ADHD? 2. How does screen time differ for adolescents with ADHD compared to adolescents without ADHD? 3. What are the associations between screen time and cardiorespiratory fitness based on adolescents with and without ADHD diagnosis? Method | The study included 1139 adolescents from 34 schools in the age range 13–14. This is a cross- sectional study as a part of the larger study ”Physical Activity for Healthy Brain Functions in School Youth” conducted 2019 based on quantitative data where cardiorespiratory fitness was estimated in ml/ kg/ min after performing the Ekblom-Bak cycle ergometertest. Screen time and general descriptive data (gender, age, weight and height) were based on survey questions and obtained data from SCB concerning socioeconomic background.  Results | No significant difference in VO2max (ml/kg/min) between adolescents with ADHD and without ADHD (p = 0.333). When controlled for gender, parental education and BMI, a significant difference could be established (β = -3.398 ml/kg/min, p = 0.014).Analysis of differences in screen time during a normal weekday and weekend day was not significant between adolescents with ADHD and without ADHD (weekday p = 0.269, weekend day p = 0.275). There were a significant association in adolescents without ADHD with estimated VO2max and screen time weekdays 3–4 hours (β = -1.993 ml/kg/min, p &lt;0.001), weekday ≥5 hours (β = - 2.066 ml/kg/min, p = 0.004), weekend day ≥5 hours (β = -2.244 ml/kg/min, p = 0.003) from the reference 0–2 hours. For adolescents with ADHD, no significant association was seen for any category of screentime (p = 0.786, p = 0.060, p = 0.392, p=0.806). Conclusions | This study showed significant difference in VO2max between adolescents with and without ADHD, however no significant difference in screen time was observed. Significant measured association between cardiorespiratory fitness and screen time on an iiiordinary weekday ≥3, such as screen time on an ordinary weekend day ≥5 h in adolescents without ADHD was shown. However, no such association was seen for adolescents with ADHD. Further research with a larger population in adolescents with ADHD and controlling for diagnosis and medication is necessary.Uppsatsen tilldelades stipendiemedel ur Överste och Fru Adolf Johnssons fond 2023.</p

Kondition och skärmtid hos ungdomar med ADHD : Samband mellan skärmtid och kondition hos ungdomar med och utan ADHD

Syfte och frågeställningar | Undersöka sambandet mellan kardiovaskulär kondition och skärmtid, samt undersöka skillnader i kardiovaskulär kondition samt skärmtid hos ungdomar med Attention Deficit Hyperactivity Disorder (ADHD) och hur det skiljer sig från ungdomar utan ADHD. Frågeställningar: 1. Hur skiljer sig kondition (beräknad VO2max) hos ungdomar med och utan ADHD? 2. Hur skiljer sig skärmtid hos ungdomar med ADHD från ungdomar utan ADHD? 3. Hur ser sambandet ut mellan skärmtid och kondition hos ungdomar med samt utan ADHD diagnos?  Metod | Studien inkluderar 1139 ungdomar från 34 skolor i åldersspannet 13–14 år. Studien är en tvärsnittsstudie som är en del av en större studie ”Physical Activity for Healthy Brain Functions in School Youth” genomförd 2019 baserad på kvantitativ data där kardiovaskulär kondition uppskattades i ml/kg/min efter utfört Ekblom-Bak submaximala cykel ergometer test. Skärmtid samt allmän beskrivande data (kön, ålder, vikt och längd) baserades på enkätfrågor och inhämtad data från SCB kring socioekonomisk bakgrund.  Resultat | Resultaten visade ingen signifikant skillnad i VO2max (ml/kg/min) mellan ungdomar med ADHD och utan ADHD (p = 0.333). Vid kontroll av kön, föräldrautbildning och BMI kunde en signifikant skillnad visas (β = -3.398 ml/kg/min, p = 0.014). Vid analys av skillnader i skärmtid under en vanlig vardag och en vanlig helgdag var inte skillnaden signifikant mellan ungdomar med ADHD och utan ADHD (vardag p = 0.269, helgdag p =0.275). Det fanns ett signifikant samband hos ungdomar utan ADHD vid uppskattad VO2maxoch skärmtid vardag 3–4 timmar (β = -1.993 ml/kg/min, p &lt;0.001), vardag ≥5 timmar (β = -2.066 ml/kg/min, p = 0.004), helgdag ≥5 timmar (β = -2.244 ml/kg/min, p = 0.003) jämfört med referens 0–2 timmar. För ungdomar med ADHD kunde inget signifikant samband för samtliga kategorier av skärmtid utläsas (p = 0.786, p = 0.060, p = 0.392, p = 0.806).  Slutsats | Denna studie påvisar en signifikant skillnad i VO2max mellan ungdomar med och utan ADHD, medan ingen signifikant skillnad i skärmtid observerades. Uppmätt signifikant samband mellan kardiorespiratorisk kondition och skärmtid en vanlig vardag ≥3, samt skärmtid en vanlig helgdag ≥5 timmar hos ungdomar utan ADHD kunde tydas. Däremot sågs inget sådant samband hos ungdomar med ADHD. Ytterligare forskning föreslås med större stickprov på ungdomar med ADHD samt kontroll av diagnos och medicinering.Aim | To investigate the associations between cardiorespiratory fitness and screen time, also investigate the differences in cardiorespiratory fitness as well as screen time for adolescents with Attention Deficit Hyperactivity Disorder (ADHD) and how it differs from adolescents without ADHD. Questions posed: 1. How does cardiorespiratory fitness (calculated VO2max) differ in adolescents with and without ADHD? 2. How does screen time differ for adolescents with ADHD compared to adolescents without ADHD? 3. What are the associations between screen time and cardiorespiratory fitness based on adolescents with and without ADHD diagnosis? Method | The study included 1139 adolescents from 34 schools in the age range 13–14. This is a cross- sectional study as a part of the larger study ”Physical Activity for Healthy Brain Functions in School Youth” conducted 2019 based on quantitative data where cardiorespiratory fitness was estimated in ml/ kg/ min after performing the Ekblom-Bak cycle ergometertest. Screen time and general descriptive data (gender, age, weight and height) were based on survey questions and obtained data from SCB concerning socioeconomic background.  Results | No significant difference in VO2max (ml/kg/min) between adolescents with ADHD and without ADHD (p = 0.333). When controlled for gender, parental education and BMI, a significant difference could be established (β = -3.398 ml/kg/min, p = 0.014).Analysis of differences in screen time during a normal weekday and weekend day was not significant between adolescents with ADHD and without ADHD (weekday p = 0.269, weekend day p = 0.275). There were a significant association in adolescents without ADHD with estimated VO2max and screen time weekdays 3–4 hours (β = -1.993 ml/kg/min, p &lt;0.001), weekday ≥5 hours (β = - 2.066 ml/kg/min, p = 0.004), weekend day ≥5 hours (β = -2.244 ml/kg/min, p = 0.003) from the reference 0–2 hours. For adolescents with ADHD, no significant association was seen for any category of screentime (p = 0.786, p = 0.060, p = 0.392, p=0.806). Conclusions | This study showed significant difference in VO2max between adolescents with and without ADHD, however no significant difference in screen time was observed. Significant measured association between cardiorespiratory fitness and screen time on an iiiordinary weekday ≥3, such as screen time on an ordinary weekend day ≥5 h in adolescents without ADHD was shown. However, no such association was seen for adolescents with ADHD. Further research with a larger population in adolescents with ADHD and controlling for diagnosis and medication is necessary.Uppsatsen tilldelades stipendiemedel ur Överste och Fru Adolf Johnssons fond 2023.</p

Prenatal diagnosis of Pallister-Killian syndrome in young woman: ultrasound indicators and confirmation by FISH

We report the first case of Pallister-Killian syndrome diagnosed prenatally in Western Balkan region where one of the ultrasound markers was intrauterine growth restriction. During routine ultrasound control of the pregnancy at 21st gestation week (second pregnancy of the 25 year old woman) symmetrical intrauterine growth restriction (IUGR), short long bones, ventriculomegaly and oligoamnion were noted. Amniotic fluid was examined cytogenetically. Fetal karyotype obtained by GTG banding of amniocytes revealed mosaic female karyotype 46,XX/47,XX,+mar (F-like). C-banding indicated that F-like marker does not belong to F, E or G chromosomal group. Employing targeted FISH with arm-specific probe for chromosome 12, tetrasomy 12p was confirmed. Fetal lymphocytes revealed normal female karyotype. This case showed that i(12p) could be found in pregnancy of young woman, not only in those of advanced age, as usually reported in the literature. This case also showed that intrauterine growth restriction could be one of the ultrasound markers associated with Pallister-Killian syndrome