Jan Długosz University

About: Jan Długosz University is a education organization based out in Częstochowa, Poland. It is known for research contribution in the topics: Crystal structure & Luminescence. The organization has 749 authors who have published 2311 publications receiving 19395 citations. The organization is also known as: Higher Teacher Education School.

Different modifier oxides effect on the photoluminescence and photoinduced piezooptics of Er 3+ -doped fluorotellurite glasses

Abstract: Novel fluorotellurite glasses with composition 70TeO2·5MxOy·10P2O5·10ZnO·5PbF2 (mol %) containing 600 ppm Er2O3, where MxOy = (MgO, PbO, Bi2O3, Nb2O5, TiO2, BaO, WO3, SrO, CdO) have been prepared using the conventional melt-quenching method. Studies of the nonlinear optical refractive index and photoinduced piezooptics were carried out. The Mid-Infrared spectroscopy, optical transmission, photoluminescence and photoinduced changes of diagonal piezooptics and nonlinear optics refractive indices coefficient measurements were applied to determine the appropriate glass modifier to achieve the desirable optical properties and high performance. The glasses may be useful for operation by high-intensity laser pulses.

A new species of the genus Latois STAL, 1866 from Madagascar (Hemiptera: Fulgoromorpha: Flatidae)

Abstract: Received: 30 March 2012. Accepted: 20 April 2012. ŒWIERCZEWSKI D., STROIÑSKI A. 2012. A new species of the genus Latois STCL, 1866 from Madagascar (Hemiptera: Fulgoromorpha: Flatidae). Acta zool. cracov., 55B(1): 65-77. Abstract. A new species of the family Flatidae Latois nigrofasciata sp. n. fromMadagascar is described and illustrated.

Removal of Pb(II) Ions Using Polymer Inclusion Membranes Containing Calix[4]resorcinarene Derivative as Ion Carrier

Abstract: Stricter environmental regulations regarding the discharge of toxic metals require developing various technologies for the removal of these metals from polluted effluents. The removal of toxic metal ions using immobilized membranes with doped ligands is a promising approach for enhancing environmental quality, because of the high selectivity and removal efficiency, high stability, and low energy requirements of the membranes. Cellulose triacetate-based polymer inclusion membranes (PIMs), with calix[4]resorcinarene derivative as an ion carrier, were analyzed to determine their ability for removal of Pb(II) ions from aqueous solutions. The effects of ion carrier concentration, plasticizer amount, pH of source aqueous phase, and receiving agents on the effective transport of Pb(II) were determined. All studied parameters were found to be important factors for the transport of Pb(II) ions. The PIM containing calix[4]resorcinarene derivative as an ion carrier showed high stability and excellent transport activity for selective removal of Pb(II) from the battery industry effluent, with a separation efficiency of 90%.

Empowerment in Polish fathers of children with autism and Down syndrome: the role of social support and coping with stress - a preliminary report.

Abstract: Background Although empowerment is an important factor in the adaptation of parents of children with intellectual and developmental disabilities, our understanding of empowerment in fathers or how it relates to coping with stress and subjective social support is limited. In Poland, families with children with intellectual and developmental disabilities experience many challenges because of insufficient support. Although parental contribution to developing different forms of services for people with disability is crucial, the potential of fathers is underestimated and poorly understood. Methods The study enrolled 35 fathers of children with autism with intellectual disability, 37 fathers of children with Down syndrome and 40 fathers of typically developing children. They completed three questionnaires: Family Empowerment Scale, Ways of Coping Questionnaire and Social Support Questionnaire - Short Form. Results Compared with other groups, family empowerment was lower in fathers of children with autism. No group differences were found for the service system and community dimensions of empowerment. In the fathers of children with autism, social support was not related to empowerment, but there was a negative correlation between emotional coping and service system. Satisfaction with social support in fathers of children with Down syndrome correlated positively with the community dimension of empowerment. Conclusions Results show that fathers of children with autism and intellectual disability require support in family empowerment and that the significance of emotion-focused and problem-focused coping and social support in the context of empowerment differs in fathers of children with autism and Down syndrome. These results should be considered preliminary because of the limited sample size.