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Early math skills are a good predictor of later academic success. Finding what factors influence math performance might help educators create better and more efficient math programs. The goal of the present study was to assess the relationship of math achievement and verbal fluency, selective attention, visual-motor integration and inhibitory control. An additional goal was to assess the effect of gender and grade on math achievement. The sample for this study comprised 210 children from grades 1 to 3 (107 boys, 103 girls). Children were individually administered a math test and tests of various predictor measures. The significant predictors of math achievement were verbal fluency, selective attention, visual-motor integration, and inhibitory control. The proposed model explained around 70% of the variance in the math scores. There were no gender differences in the math scores. Given the fact that all the predictors used in this study are very susceptible to inclusion in instruction, their incorporation in an early age curriculum might significantly improve math skills at a later age.
EN
Introduction. Posterior circulation aneurysms account for approximately 30% of all intracranial aneurysms, and their rupture often causes aneurysmal subarachnoid hemorrhage (aSAH). Because surgical treatment of posterior circulation aneurysms is difficult, endovascular treatment is commonly indicated. However, simple coil embolization is associated with a high rate of recanalization. Our goal was to investigate morphometric aneurysmal features assessed on pre-embolization computed tomography angiography (CTA) as predictors of recanalization in patients with posterior circulation aneurysms. Material and Methods. We retrospectively analyzed data of 24 patients who underwent coil embolization due to rupture of saccular posterior circulation aneurysms. The morphometric features of aneurysms were measured based on pre-embolization 3D-CTA-aneurysm models, and aneurysmal size and volume were measured on digital subtraction angiography (DSA) images. The effectiveness of initial endovascular treatment was determined visually with the modified Raymond Roy classification directly after embolization and on follow-up DSAs. Recanalization was diagnosed when, compared to the primary embolization aneurysm appearance, compaction and filling of the aneurysm occurred. Statistical analysis was performed with Statistica 13.1 software. Results. Higher maximal aneurysm height perpendicular to the aneurysmal neck was associated with a greater aneurysm recanalization risk (12.12±5.13mm vs. 7.41±3.97mm, p=0.039), and this relationship remained significant after adjustment for patient’s age, sex and aneurysm localization (OR=1.26, 95%CI: 1.01-1.60, p=0.047). Maximal aneurysm height perpendicular to the aneurysmal neck distinguished well between recanalized and non-recanalized aneurysms (AUC=0.755, 95%CI: 0.521- 0.989, p=0.033). Conclusions. Predictors of aneurysm recanalization can help choose best endovascular treatment strategies, which could reduce complication rates.
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Time Series Approach To Athletes Motor Potential

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EN
Introduction. The aim of this study was to determine the dynamics of changes in selected motor abilities of javelin throwers and to determine predictors of javelin throw distances. Material and methods. Research material included the results obtained from a group of 60 competitors from the Silesia Region of Poland, aged 14 - 15 years. In order to answer the research question, the following statistical analysis were employed: Pearson's linear correlation coefficients, vectors R0 and R1, time series analysis, distributed lag analysis and Almon distributed lag analysis and coefficient of concordance φ2Results. The correlation analyzes allowed for a selection of two variables for further analyses: specific strength of arms and trunk (SSAT) and specific strength of shoulders girdle and trunk (SSGT). Calculated indexes revealed that the level of SSAT showed a constant upward tendency (+15%). The highest rise in SSAT level was recorded in the 4th and 5th quarter (+9%). The level of SSGT showed an upward tendency nearly (+6%). In this case, the highest rise was observed in the 7th and 8th quarter (+4.5%). Conclusions. The standardized regression analysis revealed that the variable of specific power of arms and trunk (SOBT) is the most important predictor for javelin throw distance with a full approach run.
EN
Energy drinks (EDs) are caffeinated drinks marketed as energy and performance boosters and commonly used by athletes worldwide. They are widely used among youth and university students, with limited research about their consumption among physically active persons. Objectives: This study aims to assess ED consumption among physically active persons in Lebanon, the association between ED use and the participants’ general characteristics, and to explore the predictors of ED use among them. Methods: An observational cross-sectional study was conducted over three months, targeting 384 physically active persons from 8 gyms across Lebanon. Results: The prevalence of ED consumption was 49.2%, namely to boost energy (68.2%) and stimulate awakeness (19.3%). Around 20% used EDs during workouts, and 15.8% used them before it. Females had 59% lower odds of ED consumption than males (OR 0.41, 95% CI 0.19-0.89), while older participants had 4.74 times higher odds of ED use (OR 4.74, 95% CI 1.16-19.3). Waterpipe smokers and alcohol consumption had 3.68 and 2.28 times higher odds of ED use than non-users. Among other sports, those doing weightlifting had significantly higher odds of ED consumption than others (OR 2.61, 95% CI 1.30-5.25). Conclusion: The predictors of ED consumption should be considered for better-informed decisions and effective awareness campaigns.
EN
Acetylcholinesterase inhibitors are the mainstay of treatment of Alzheimer’s disease. However, in the majority of studies the proportion of patients demonstrating a significant clinical improvement under treatment does not exceed 40%. A routine method of identifying responders in clinical practice is the assessment of change in their cognitive functions during treatment. This review presents the available data on predictors of response to acetylcholinesterase inhibitor therapy in Alzheimer’s disease – factors allowing the prognosis of a patient’s reaction to treatment (in terms of target symptoms and tolerance) at its very beginning or even before therapy has been initiated. A variety of predictors will be discussed: genetic factors (apolipoprotein E, butyrylcholinesterase, choline acetyltransferase), demographic factors (age, gender), clinical factors (severity and rate of progression of dementia, comorbid neuropsychiatric symptoms, vascular risk factors, response to the test dose of the drug, results of neuropsychological testing, orthostatic hypotension), and work-up results (SPECT, MRI, EEG). The ability to predict patient’s response to treatment would allow a precise choice of szczególdrug for a given patient, taking into account its clinical efficacy in different subpopulations and potency for the generation of side effects, could also help cut down the global costs of prescribing those medications, and stimulate research on the biological mechanisms of Alzheimer’s disease. Altogether, the current level of knowledge on predictors of response to acetylcholinesterase inhibitors, with good tolerance and benign side-effect profile of this class of drugs, and lack of alternative, more effective methods of treatment of Alzheimer’s disease cannot entitle the physician to give up on the introduction of treatment in any single patient.
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