Astra Zviedre, Arnis Eņģelis, Pēteris Tretjakovs, Irisa Zīle and Aigars Pētersons
Bachur, R. G., Hennelly, K., Callahan, M. J., Chen, C., Monuteaux, M. C. (2012). Diagnostic imaging and negative appendectomy rates in children: Effects of age and gender. Pediatrics , 129 (5), 877–884.
Cobben, L. P., Otterloo, A. M., Puylaert, J. B. (2000). Spontaneously resolving appendicitis: Frequency and natural history in 60 patients. Radiology, 215 (2), 349–352.
Dingemann, J., Ure, B. (2012). Imaging and the use of scores for the diagnosis of appendicitis in children. Eur. J. Pediatr. Surg., 22 (3), 195
The aim of the retrospective case-control study was to determine if the health-related quality of life of overweight and obese children is lower than for children with optimal weight, using the KIDSCREEN-52 survey of health-related quality of life. The study examined differences in health-related quality of life assessments between children with optimal weight, and obese and over-weight children, as well as evaluated parental assessments of the quality of life of their children. In total, 200 children aged 8 to 18 years and their parents participated in the study. The results of the study showed that the total quality of life of obese (p < 0.0001) and overweight (p = 0.008) children was lower than for children with optimum weight (p = 0.001). Also, the assessments of quality of life between parents of obese (p < 0.0001) and overweight (p = 0.001) children scored lower than those of parents whose children had optimal weight.
Shynar Anuarbek, Saule Abugalieva and Yerlan Turuspekov
Development of efficient DNA markers plays an important role in modern breeding projects of many crops, including cultivated hexaploid bread wheat (BW) and tetraploid durum wheat (DW). Findings of genome-wide association studies on major polyploid crops, such as BW, may also help in molecular breeding studies in relative cultivated species with a similar genetic background, including DW. Therefore, the validation of identified quantitative trait loci or marker-trait associations is an important preliminary step in marker-assisted selection (MAS) oriented projects. In this study, thirty-two SNP (single nucleotide polymorphism) markers of six agronomic traits identified in BW, harvested in Kazakhstan, were converted to KASP (Kompetitive Allele-Specific PCR) as-says. Generated 32 KASP assays were used in the analysis of 29 DW accessions from Kazakhstan. Firstly, the group of DW accessions was tested using replicated and randomised one-metre blocks in field conditions of southeast Kazakhstan and evaluated for main agronomic traits. The analysis showed that 14 KASP assays were polymorphic in the scoring of 29 DW accessions. The t-test suggested that the segregation in eight KASP assays was significantly associated with five agronomic traits. The study confirms robustness of KASP assays in MAS of DW breeding projects for the improvement of yield potential.
Lina Straigytė, Gunta Čekstere, Māris Laiviņš and Vitas Marozas
Robinia pseudoacacia is an alien tree species that has wide distribution in green areas of Rīga and Kaunas. In recent years, the spread and invasion of this species was observed. The aim of this study was to determine the relative importance of invasiveness of R. pseudoacacia in Rīga and Kaunas. The degree of species invasion was estimated by applying the Pest Plant Prioritization Process, which is based on the Analytic Hierarchy Process method. The results showed that the invasive degree of R. pseudoacacia was near medium (0.4); the present compared to potential distribution rating was medium (0.57) and the social, environmental and economic impact score was very low (0.17). The Final Pest Plant Score for R. pseudoacacia was near medium (0.426). The obtained estimates indicated that black locust was medium invasive, and that well-lit conditions favour its establishment.
 N. Achutan, S. B. Rao, A. Ramachandra-Rao, The number of symmetric edges in a digraph with prescribed out-degrees. Combinatorics and Applications (Calcutta, 1982), Indian Statist. Inst ., (1984), 8–20.
 M. Aigner, Uses of diagram lattice, Mittel. Mathem. Sem. Gissen (Coxeter-Festschrrift), 163 (1984), 61–77.
 G. G. Alway, Matrices and sequences, Math. Gazette , 46 (1962), 208–213.
 P. Avery, Score sequences of oriented graphs, J. Graph Theory , 15, 3 (1991), 251–257.
 C. M. Bang, H. Sharp, Score
A simple and popular childhood game, loves or the love calculator, involves an iterated rule applied to a string of digits and gives rise to surprisingly rich behaviour. Traditionally, players’ names are used to set the initial conditions for an instance of the game: its behaviour for an exhaustive set of pairings of popular UK childrens’ names, and for more general initial conditions, is examined. Convergence to a fixed outcome (the desired result) is not guaranteed, even for some plausible first name pairings. No pairs of top-50 common first names exhibit non-convergence, suggesting that it is rare in the playground; however, including surnames makes non-convergence more likely due to higher letter counts (for example, “Reese Witherspoon loves Calvin Harris”). Difierent game keywords (including from difierent languages) are also considered. An estimate for non-convergence propensity is derived: if the sum m of digits in a string of length w obeys m > 18=(3=2/)w-4, convergence is less likely. Pairs of top UK names with pairs of ‘O’s and several ‘L’s (for example, Chloe and Joseph, or Brooke and Scarlett) often attain high scores. When considering individual names playing with a range of partners, those with no loves letters score lowest, and names with intermediate (not simply the highest) letter counts often perform best, with Connor and Evie averaging the highest scores when played with other UK top names.
In this paper, we present an approach to data aggregation based on a generalization of the discrete Choquet integral by means of fusion functions. Inspired by Mesiar, R.-Kolesárová, A.-Bustince, G.-Pereira Dimuro, G.-Bedregal, B.: Fusion functions based discrete Choquet-like integrals, European J. Oper. Res. 252 (2016), 601-609, we merge information contained in capacities m of criteria sets and values of score vectors by a fusion function F instead of the product operator. We give the conditions under which fusion functions F yield well-defined functionals CFm and we also discuss properties of these functionals. Some examples for particular capacities m and particular fusion functions F are given.
minimizing the dispersion of the residuals, Ann. Math. Stat. 43 (1972), 1449-1458.
 JUREˇCKOV´A, J.: Asymptotic linearity of a rank statistic in regression parameter, Ann. Math. Stat. 40 (1969), 1889-1900.
 JUREˇCKOV´A, J.: Nonparametric estimate of regression coefficients, Ann. Math. Stat. 42 (1971), 1328-1338.
 JUREˇCKOV´A, J.-PICEK, J.-SALEH, A. K. MD. E.: Rank tests and regression rank scores tests in measurement error models, Comput. Stat. Data Anal., 2012 (in press).
 JUREˇCKOV´A, J
Valdis Gončars, Konstantīns Kalnbērzs, Ēriks Jākobsons, Ieva Briede, Kristaps Blūms, Kristaps Ērglis, Mārtiņš Ērglis, Liene Patetko, Indriķis Muižnieks and Andrejs Ērglis
.-S., Lee, S.-W., Park, S.-H., Choi, Y.-J. (2013). Mesenchymal stem cell injections improve symptoms of knee osteoarthritis. Arthroscopy: J. Arthrosc. Rel. Surg ., 29 (4), 748–755.
Kon, E., Filardo, G., Drobnic, M., Madry, H., Jelic, M., Dijk, N. van, Della Villa, S. (2012). Non-surgical management of early knee osteoarthritis. Knee Surg. Sports Traumatol. Arthrosc ., 20 (3), 436–449.
Lee, S., Nardo, L., Kumar, D., Wyatt, C. R., Souza, R. B., Lynch, J., McCulloch, C. E., Majumdar, S., Lane, N. E., Link, T. M. (2015). Scoring hip osteoarthritis with MRI