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ENVIRONMENTAL DIVERSITY IN BODY POSTURE OF SIX-YEAR-OLD CHILDREN

100%

Trzcińska D. , Świderska D. , Tabor P. , Olszewska E.

Polish Journal of Sport and Tourism

2013

tom 20

nr 3

205-210

Introduction. Body posture is a somatic characteristic essential for the biological development of the child, especially in the periods of rapid growth and those associated with changes in lifestyle. Its lability and dimorphic and ontogenetic variability cause a lot of controversy. Doubts are also raised by environmental diversity of this development feature. Hence, the purpose of the studies undertaken is the comparative evaluation of postures of six-year-old children in urban and rural areas. Material and methods. The study was conducted in 2011-2013. A total of 1057 children, including the 371 boys and girls from the Warsaw agglomeration and 147 boys and 168 girls from the rural environment in the Lublin region were subjects of the study. The average age was 5.87 (± 0.30) years. Posture in the sagittal, frontal and transverse planes was diagnosed by a visual method using scanning technique. In the mathematical analysis of numerical data the selected techniques of descriptive statistics and Student's t-test and chi-square test were used. Results. The differences in body posture between the environments in favor of the children from the rural areas emerged most strongly in the sagittal plane. They related to posture components such as: setting of the shoulders and shoulder blades (boys and girls), abdominal bulge (boys) and the position of the head (girls). In the assessment of the lower extremities the study demonstrated favorable condition knees in rural children as compared with their peers from the city. The only element of posture better shaped in the urban subgroup was the size of thoracic kyphosis. Conclusions. Established posture quality - treated as one of the positive measures of health - allows for a higher rating of this school readiness component in lowly urbanized residential areas. The complexity of posture diagnostics and lability and variability of the analyzed somatic characteristics dictate caution in formulating radical and definitive opinions on the importance of urbanization as posturogenesis condition.

Response of components of doubled haploids seed yield of winter oilseed rape (Brassica napus L.) to diverse environments

51%

Cegielska-Taras T. , Adamska E. , Kaczmarek Z. , Szala L.

Rośliny Oleiste - Oilseed Crops

2007

tom 28

nr 1

Zróżnicowanie środowisk pod względem stopnia interakcji w seriach doświadczeń z pszenicą ozimą

51%

Drzazga T. , Krajewski P.

2001

tom 218-219

111-115

Środowiska wykorzystywane do testowania rodów pszenicy ozimej w doświadczeniach przedrejestrowych oceniano pod kątem ich zdolności do różnicowania genotypów. W pracy analizowano powtarzalność udziału w interakcji genotypowo-środowiskowej tych miejscowości na podstawie serii doświadczeń z lat 1999–2000. Stwierdzono, że charakter i stopień interakcji przejawiający się w poszczególnych środowiskach zależny raczej od warunków panujących w danym roku, niż od konkretnego miejsca założenia doświadczenia lub od badanego zestawu genotypów.

Experimental stations, used as locations of test and pre-registration experiments, were evaluated with respect to the ability to differentiate winter wheat genotypes. The paper concerns the repeatability of the interaction contributions of the locations used in series of the experiments in the years 1999–2000. For these data, the type and magnitude of interaction depended rather on the year conditions than on the given location or the set of tested genotypes.

An instance of agreement between environmental and genetic diversities: chub, Leuciscus cephalus, populations in the Rhone catchment

51%

Bouvet Y. , Brohon B. , Pattee E.

nr 1-2

According to heterozygosity, allele number, and Correspondence Analysis, the chub populations of the lentic Saone River were genetically homogeneous while those of the lotic Rhone River (including flowing sections and standing backwaters) were diverse. These two groups of populations were distant by 150 km.