“PE WITH THE CLASS” starts in the family. Parent – the initiator of the motor activity in the family

The motor activity of children and teenagers is dependent on many various factors, mainly on the attitude of parents and class tutors. Increasing aversion of the younger generation to the motor activity, manifested by not being involved in PE lessons should alarm the environment responsible for bringing up the youngsters. Due to this, there is a need to seek for models of the activity which will contribute to the change of negative trends. The aim of this article is to show the family as an important part of a recreation education circle, as well as introducing the models of the motor activity in the family. Suggested models have been evaluated by the families being part of them. It was also decided to check if they are accurate proposals, having a chance of a wider social reception, and if they reach parents and children’s expectations. Achieved results indicate the need for recognizing the family as an important link in the process of introducing younger generation to an active lifestyle and the need for emphasizing the extremely substantial role of parents in preparing pre-school aged children for their future, active participation in physical education lessons

Sport event in categories of fair play values in the view of the competitors of sport team games

Prezentowana publikacja dotyczy wybranych zagadnień związanych z kulturą fizyczną i zdrowotną współczesnego człowieka. Autorzy – specjaliści z zakresu pedagogiki, nauk medycznych i nauk o kulturze fizycznej – podejmują m.in. problematykę wartości kultury fizycznej w procesie kształcenia i wychowania, współczesnych czynników promocji zdrowia i edukacji zdrowotnej, zdrowotnych uwarunkowań aktywności ruchowej czy społecznych kontekstów idei olimpijskiej. Tematyka ta wpisuje się w ważny nurt rozważań, w którym poszukuje się nowych rozwiązań pedagogicznych, zwłaszcza w odniesieniu do idei edukacji olimpijskiej i zdrowotnej.Fair play rules in sport events are based on four basic components. The scope of their action includes essential duties concerning the respect to the rules of the game and respect to the accepted behaviours and moral principles. The aim of this study was to assess the level of knowledge and awareness of competitors of team games in the scope of perceiving the components of the fair play rules in sport events. In this study a method of the diagnostic survey with using the questionnaire form and written examined statements was applied. Examination was made in 2015 and 20 volleyball players and 19 handball players took part in it. The nature of the fair play rule is not a new element for the examined players. Competitors, in most cases, have knowledge how to behave in accordance with fair game. Although this principle, unfortunately, is understood by them exclusively in categories of sports rivalry on the court or a sports hall. Attitudes to fair play components in the sport event are at the average level in the clear majority (about 89%). Choices presenting attitude, which is on the highest level, were noticed only in about 7% of respondents and the lowest level was registered at about 4% of the examined. The fair play component which was noticed on the highest level was “health”, and the lowest value was presented by: “equality of opportunity” and “respecting the principles and rules of the game”. Presented results show the high rate of the problem, both in the public and pedagogic aspect

Ossification of the ligamentum flavum of the lumbosacral spine in the polish hospitalized population : a prospective cohort study

The aim of this study was to assess the prevalence, clinical features and distribution of lumbosacral ossifications of the ligamentum flavum (OLF), using MRI, CT and microCT, in hospitalized Polish patients. Patients were recruited prospectively between January 2011 and January 2013. Patients were further qualified to the study group only if CT or MRI of the lumbosacral region detected OLF. Level of OLF excision was determined by the localization of spinal stenosis. After excision the LF fragments containing OLF were stored in a 4% solution of formaldehyde until microCT assessment. A total of 184 agreed to take part in the study. In 50 patients (27.2%) OLF were found. Thus, the study group consisted of 17 women (34%) and 33 men, with a mean age of 55.4 \pm 17.2 years. OLF occurred more often in men (66%) than in women (34%) (p = 0.0014). The most common site for the localization of OLF in women, as well as in men was the L5/S1 level (60% and 53.3% respectively). The mean volume of OLF was 3.87\pm 5.27 mm^{3}\left ( 4.66 \pm 5.71 mm^{3} vs. 1.27 \pm 2.19 mm^{3}, in men and women respectively; p = 0.023 \right ). The LF were thickened in 21 (42%) patients. The mean volume of OLF in patients with normal LF was 4.78\pm 5.95 mm^{3} and in patients with thickened LF 5.33\pm 6.10 mm^{3} (p = 0.75). The prevalence of lumbosacral OLF in the Polish hospitalized population is very high. The most common site of their localization is the L5/S1 level. LF thickening is not associated with OLF formation

Secure Biometric Verification Station Based on Iris Recognition, Journal of Telecommunications and Information Technology, 2012, nr 3

This paper describes an application of the Zak-Gabor-based iris coding to build a secure biometric verification station (SBS), consisting of a professional iris capture camera, a processing unit with specially designed iris recognition and communication software, as well as a display (LCD). Specially designed protocol controls the access to the station and secures the communication between the station and the external world. Reliability of the Zak-Gabor-based coding, similarly to other wavelet-based methods, strongly depends on appropriate choice of the wavelets employed in image coding. This choice cannot be arbitrary and should be adequate to the employed iris image quality. Thus in this paper we propose an automatic iris feature selection mechanism employing, among others, the minimum redundancy, maximum relevance (mRMR) methodology as one, yet important, step to assess the optimal set of wavelets used in this iris recognition application. System reliability is assessed with approximately 1000 iris images collected by the station for 50 different eyes

New Class of Antimicrobial Agents: SBA-15 Silica Containing Anchored Copper Ions

The paper is about a new class of antimicrobial functional nanomaterials. Proposed compounds are based on SBA-15 porous silica matrices and contain anchored copper ions. Thanks to the immobilization of functional groups the compounds are safer for environment than commonly used disinfectant agents. We prepared and examined silica based materials containing two concentrations of copper-containing groups: 10 and 5%. For the reference we prepared samples containing free-standing CuO molecules in the structure and checked their antimicrobial properties. Antibacterial effect of considered SBA-15-Cu material was tested on Escherichia coli bacteria. Antimicrobial tests were applied for the pure form of the material and as modifying agents for plastics. The obtained results showed that the sample with lower concentration of active copper-containing groups has stronger antimicrobial properties than the one with higher concentration of copper. Interestingly, silica containing free-standing CuO molecules has no antimicrobial properties. Considering the obtained results, we can conclude that the most probable antimicrobial mechanism in this case is an oxidation stress. When a plastic modifier is applied the material is enriched with bacterial inhibitory properties. It seems that SBA-15 silica containing low concentration of anchored copper ions is promising in terms of its antibacterial property and biomaterial potential for commercial use

Dissolved organic carbon and biodegradable dissolved organic carbon determination in river water of the Strug Basin

The aim of the study was to determine Dissolved Organic Carbon (DOC) and Biodegradable Dissolved Organic Carbon (BDOC) concentrations, as well as the correlation between them, in the river water of the Strug basin located in the Carpathian Foothills. The Strug river's hydrographic basin was chosen for the study as it is a typical catchment area, which allows ease of measurement. DOC concentrations in the streams (tributaries) and the Strug ranged from 2.71 to 4.88 mgC/dm3 and from 3.62 to 4.19 mgC/dm3, respectively. BDOC concentrations in the streams and the Strug ranged from 0.40 to 1.09 mgC/dm3 and from 0.64 to 0.77 mgC/dm3, respectively. BDOC, expressed as the percentage of DOC (%BDOC) ranged from 14.76 to 24.78% in the streams, and from 17.68 to 20.11% in the Strug. The procentage of BDOC is independent of DOC concentrations. The season of the year and the size of the watercourse had the greatest impact on DOC and BDOC concentrations

In-Spray Supercharging of Peptides and Proteins in Electrospray Ionization Mass Spectrometry

Enhanced charging, or supercharging, of analytes in electrospray ionization mass spectrometry (ESI MS) facilitates high resolution MS by reducing an ion mass-to-charge (m/z) ratio, increasing tandem mass spectrometry (MS/MS) efficiency. ESI MS supercharging is usually achieved by adding a supercharging reagent to the electrospray solution. Addition of these supercharging reagents to the mobile phase in liquid chromatography (LC)-MS/MS increases the average charge of enzymatically derived peptides and improves peptide and protein identification in large-scale bottom-up proteomics applications but disrupts chromatographic separation. Here, we demonstrate the average charge state of selected peptides and proteins increases by introducing the supercharging reagents directly into the ESI Taylor cone (in-spray supercharging) using a dual-sprayer ESI microchip. The results are comparable to those obtained by the addition of supercharging reagents directly into the analyte solution or LC mobile phase. Therefore, supercharging reaction can be accomplished on a time-scale of ion liberation from a droplet in the ESI ion source

The products of the thermal decomposition of CH 3

We have used a heated 2 cm x 1 mm SiC microtubular (mu tubular) reactor to decompose acetaldehyde: CH3CHO + DELTA --> products. Thermal decomposition is followed at pressures of 75 - 150 Torr and at temperatures up to 1700 K, conditions that correspond to residence times of roughly 50 - 100 mu sec in the mu tubular reactor. The acetaldehyde decomposition products are identified by two independent techniques: VUV photoionization mass spectroscopy (PIMS) and infrared (IR) absorption spectroscopy after isolation in a cryogenic matrix. Besides CH3CHO, we have studied three isotopologues, CH3CDO, CD3CHO, and CD3CDO. We have identified the thermal decomposition products CH3(PIMS), CO (IR, PIMS), H (PIMS), H2 (PIMS), CH2CO (IR, PIMS), CH2=CHOH (IR, PIMS), H2O (IR, PIMS), and HC=CH (IR, PIMS). Plausible evidence has been found to support the idea that there are at least three different thermal decomposition pathways for CH3CHO: Radical decomposition: CH3CHO + DELTA --> CH3 + [HCO] --> CH3 + H + CO Elimination: CH3CHO + DELTA --> H2 + CH2=C=O. Isomerization/elimination: CH3CHO + DELTA --> [CH2=CH-OH] --> HC=CH + H2O. Both PIMS and IR spectroscopy show compelling evidence for the participation of vinylidene, CH2=C:, as an intermediate in the decomposition of vinyl alchohol: CH2=CH-OH + DELTA --> [CH2=C:] + H2O --> HC=CH + H2O