New EU Matrimonial Property Law and the Situation of Polish Nationals (Citizens)

The article discusses the origins, contents and application of the EU Regulation 2016/ 1103 governing the issues of applicable law and court jurisdiction in relation to spouses’ property. The author examines the problem cross-border marriages in the EU and the potential applicability of the Regulation to Polish citizen, given that 10 EU Member States, including Poland, have not acceded to that Regulation

Parallel implementation of the k-connectivity test algorithm

There exists a large number of theoretical results concerning fast parallel algorithms for graph problems, however, scarcely one finds reports of their practical implementation. In an attempt at partial filling this gap we discuss implementation of an algorithm performing the pretest for k-connectivity. This test is based, first, on the Scan-First Search algorithm introduced in [1]. Utilizing this procedure we decrease the size of the input graph by removing selected edges so that the resulting graph (certificate of k-connectivity) has only 0(kn) left. During this part of computations we can answer the question about k-connectivity negatively if a certificate cannot be generated. Afterwards, we can apply the test described in [2] to establish ^-connectivity in the remaining cases

Sytuacja polityki mieszkaniowej w województwie kujawsko-pomorskim

Celem artykułu jest przedstawienie sytuacji polityki mieszkaniowej w województwie kujawsko-pomorskim na tle całej Polski. Posługując się metodami badań statystycznych, autorzy określili stan mieszkalnictwa w regionie i na tej podstawie zdefi niowali strategiczne kierunki polityki mieszkaniowej województwa. Z badań wynika, że na terenie województwa występują głębokie różnice w zakresie zaspokojenia potrzeb mieszkaniowych w zależności od rodzaju osadnictwa (wielkie miasta, pozostałe miasta, wieś). Ponadto poziom zaspokojenia potrzeb mieszkaniowych w województwie jest niższy niż w całym kraju. W efekcie niezbędna jest polityka, która pozwoliłaby na redukcję różnic w województwie oraz osiągnięcie średniej krajowej w zakresie zaspokojenia potrzeb mieszkaniowych w regionie

Mechanical characterisation and crashworthiness performance of additively manufactured polymer-based honeycomb structures under in-plane quasi-static loading

ABSTRACTAdditive manufacturing technology is suitable for producing energy-absorbing devices with tunable mechanical properties and improved crashworthiness performance. In this study, the mechanical properties and macrostructural crushing behaviour of five additively manufactured polymer-based honeycomb structures (HS) are investigated. Subjected to in-plane loading, the experimental results of the HS are compared with numerical findings and theoretical predictions. Results indicate that deformation modes and overall crushing performance are influenced by utilising different parent materials. The polymer HS made from polyethylene terephthalate glycol gives the best overall crushing performance over the other polymers and polymer-fibre reinforcement HS. However, the crush force efficiency of HS made from polylactic acid is the least promising. The polymer-fibre reinforced HS outperforms some of the pure polymer-based ones in terms of specific energy absorption and shows a characteristic lightweight advantage. Hence, spotting it as a promising energy absorber utilised for crashworthiness application especially where ultra-lightweight property is highly desired

Friction Welding of Aluminium and Aluminium Alloys with Steel

The paper presents our actual knowledge and experience in joining dissimilar materials with the use of friction welding method. The joints of aluminium and aluminium alloys with the different types of steel were studied. The structural effects occurring during the welding process were described. The mechanical properties using, for example, (i) microhardness measurements, (ii) tensile tests, (iii) bending tests, and (iv) shearing tests were determined. In order to obtain high-quality joints the influence of different configurations of the process such as (i) changing the geometry of bonding surface, (ii) using the interlayer, or (iii) heat treatment was analyzed. Finally, the issues related to the selection of optimal parameters of friction welding process were also investigated

Liquid levothyroxine in the treatment of myxoedema coma

Not required for Clinical Vignette

Oxygen uptake kinetics and biological age in relation to pulling force and 400-m front crawl performance in young swimmers

Background: The study aimed to assess differences in the biological age (BA) of 13-year-old swimmers and show their ability, as biologically younger—late mature or older—early mature, to develop fast 60-s oxygen uptake (V˙O2) kinetics and tethered swimming strength. Furthermore, the interplay between swimming strength, V˙O2, and 400-m front crawl race performance was examined.Methods: The study involved 36 competitive young male swimmers (metrical age: 12.9 ± 0.56 years). Depending on BA examination, the group was divided into early-mature (BA: 15.8 ± 1.18 years, n = 13) and late-mature (BA: 12.9 ± 0.60 years, n = 23) participants, especially for the purpose of comparing tethered swimming indices, i.e., average values of force (Fave) and V˙O2 (breath-by-breath analysis) kinetic indices, measured simultaneously in 1-min tethered front crawl swimming. From the 400-m racing stroke rate, stroke length kinematics was retrieved.Results: In the 1-min tethered front crawl test, early-mature swimmers obtained higher results of absolute values of V˙O2 and Fave. Conversely, when V˙O2 was present relatively to body mass and pulling force (in ml∙min–1∙kg–1∙N−1), late-mature swimmers showed higher O2 relative usage. Late-mature swimmers generally exhibited a slower increase in V˙O2 during the first 30 s of 60 s. V˙O2, Fave, BA, and basic swimming kinematic stroke length were significantly interrelated and influenced 400-m swimming performance.Conclusion: The 1-min tethered swimming test revealed significant differences in the homogeneous calendar age/heterogeneous BA group of swimmers. These were distinguished by the higher level of V˙O2 kinetics and pulling force in early-mature individuals and lower efficiency per unit of body mass per unit of force aerobic system in late-mature peers. The higher V˙O2 kinetics and tethered swimming force were further translated into 400-m front crawl speed and stroke length kinematics