Obrazovanje faze AlFeSi u slitini AlSi12 s dodatkom cera

The influence of cerium addition on the solidification sequence and microstructure constituents of the Al-Si alloys with 12,6 mass % Si was examined. The solidification was analyzed by a simple thermal analysis. The microstructures were examined with conventional light and scanning electron microscopy. Ternary AlSiCe phase was formed in the Al-Si alloys with added cerium during the solidification process. AlSiCe and β-AlFeSi phases solidified together in the region that solidified the last. Cerium addition influenced on the morphology of the α-AlFeSi phase solidification.Ispitan je utjecaj dodatka cera na tijek skrućivanja i oblikovanje mikrostrukture u Al-Si slitini s 12,6 mas. % Si. Skrućivanje je praćeno s jednostavnom toplinskom analizom. Mikrostrukture su kvantificirane pomoću svjetlosnog i elektronskog mikroskopa. Pri skrućivanju Al-Si slitine s dodatkom Ce, obrazuju se faze Al-SiCe, AlSiCe te β-AlFeSi, koje se skrućivaju zajedno u završnom području skrućivanja. Dodatak Ce utječe na morfologiju skrućivanja faze α-AlFeSi

Nonsuicidal Self-Injury (NSSI) in Serbia: Nationally representative sample study

Although NSSI has been drawing the attention of researchers intensely for the last 30 years, to date there is no published study about rates of NSSI behaviors in countries of south-eastern Europe. The study aimed to explore NSSI in the Republic of Serbia. Data were collected using multistage random sampling. The final sample consisted of 2792 participants (57.4% female) while the NSSI subsample consisted of 405 participants (54.3% males). Results showed the NSSI rate in Serbia is 4.3% based on a percentage of people who answered affirmatively to lifetime NSSI engagement. However, when the percentage of people who reported at least one positive answer through the NSSI behaviors checklist, the rate rises to 14.5%. The most frequent NSSI behavior is wound picking. NSSI rate drops to 8.8% when wound picking is excluded. Those engaged in NSSI were more likely to report suicide attempts and seek professional help than those who did not report NSSI. Gender differences in NSSI frequency are found only in cases of headbanging and burning oneself. This study showed the scope of NSSI-related problems is similar in Serbia compared to other countries. It also raised questions about the lack of preventive programs and treatment strategies for dealing with NSSI in Serbia.[https://www.sciencedirect.com/science/article/pii/S2772598722000320]Corresponding author. Institute for Educational Research, Dobrinjska 11/3, 11 000, Belgrade, Serbia. E-mail addresses: [email protected], [email protected] (A. Radanović)

New national and regional bryophyte records, 52

Marchantia paleacea is a new species for the Umbria Region and is rare in central and southern Italy. This record is in a Site of Community Importance (SCI) IT5220017 and a Special Area of Conservation (SAC) of the Natura 2000 EU-wide network due to the presence of the 7220* ‘Petrifying springs with tufa formation (Cratoneurion)’ Annexe I priority habitat. The particular environment, with a gorge and waterfall, created a very special microclimate that allowed the establishment of interesting liverworts and mosses

Determination of dioxins in dyes and pigments with HRGC/HRMS

Dioxins in some textile dyes and pigments may be a significant source of both human exposure and environmental contamination. Dyes and pigments contaminated with dioxins are the main sources of dioxins in textile industry. Further formations of dioxins can occur via dyeing and textile finishing processes at the conditions favoured for the generation of PCDD/Fs (high temperatures, alkaline conditions, UV radiation or other radical starters). Distribution of dioxins and their fate during textile processes were investigated. Textile disperse dye contaminated with dioxins was used in dyeing process and increasing of dioxins content during the process was observed

Obróbka tkaniny wełnianej przyjaznym dla środowiska środkiem odstraszającym owady

In the research work presented, fabric made of wool was grafted with β-cyclodextrine (β-CD) using 1, 2, 3, 4 butanetetracarboxlic acid (BTCA) as a polyfunctional reagent. To reduce the grafting curing temperature, which could damage the wool fabric if too high, cyanamide (CA) in combination with ammonium dihydrogen phosphat (ADHP) were used as catalysts. The presence of cedar oil applied onto textile materials was determined by ATR FT-IR spectroscopy, as well as estimation of the add-on of cedar oil with the gravimetric approach, respectively. Finally the reduction in moths after being exposed to wool treated with a separate treatment formulation i.e. β-CD, cedar oil, and β-CD in combination with cedar oil was assessed visually after different time periods. Results showed that the wool after being treated with β-CD in combination with cedar oil shows significantly prolonged moth oppression activity compared to the wool treated with cedar oil only.W pracy szczepiono tkaninę wełnianą b-cyklodekstryną (b-CD) przy użyciu kwasu 1, 2, 3, 4 butanotetrakarboksylowego (BTCA). W celu zmniejszenia temperatury utwardzania, która jeśli jest za wysoka, może uszkodzić tkaninę wełnianą, jako katalizatora użyto cyjanamidu (CA) w połączeniu z fosforem mono-amonowym (ADHP). Obecność oleju cedrowego na materiałach określono za pomocą spektroskopii ATR FT-IR, a dodatek oleju cedrowego oszacowano przy użyciu metody grawimetrycznej. Następnie oceniono wizualnie, po różnych okresach czasu, redukcję ilości motyli po ekspozycji na wełnę obrabianą b-cyklodekstryną, olejem cedrowym oraz środkiem powstałym z połączenia b-cyklodekstrynąy i oleju cedrowego. Stwierdzono, że wełna, po obróbce b-cyklodekstryną w kombinacji z olejem cedrowym wykazuje znaczne wydłużenie aktywności przeciwko molom w porównaniu z wełną obrabianą samym olejem cedrowym

Formation of AlFeSi phase in AlSi12 alloy with Ce addition

The influence of cerium addition on the solidification sequence and microstructure constituents of the Al-Si alloys with 12,6 mass % Si was examined. The solidification was analyzed by a simple thermal analysis. The microstructures were examined with conventional light and scanning electron microscopy. Ternary AlSiCe phase was formed in the Al-Si alloys with added cerium during the solidification process. AlSiCe and β-AlFeSi phases solidified together in the region that solidified the last. Cerium addition influenced on the morphology of the α-AlFeSi phase solidification

Can authorities appreciably enhance the prescribing of oral generic risperidone to conserve resources? : findings from across Europe and their implications

Generic atypical antipsychotic drugs offer health authorities opportunities for considerable savings. However, schizophrenia and bipolar disorders are complex diseases that require tailored treatments. Consequently, generally there have been limited demand-side measures by health authorities to encourage the preferential prescribing of generics. This is unlike the situation with hypertension, hypercholaesterolaemia or acid-related stomach disorders.The objectives of this study were to compare the effect of the limited demand-side measures in Western European countries and regions on the subsequent prescribing of risperidone following generics; to utilise the findings to provide future guidance to health authorities; and where possible, to investigate the utilisation of generic versus originator risperidone and the prices for generic risperidone. Principally, this was a segmented regression analysis of retrospective time-series data of the effect of the various initiatives in Belgium, Ireland, Scotland and Sweden following the introduction of generic risperidone. The study included patients prescribed at least one atypical antipsychotic drug up to 20 months before and up to 20 months after generic risperidone. In addition, retrospective observational studies were carried out in Austria and Spain (Catalonia) from 2005 to 2011 as well as one English primary care organisation (Bury Primary Care Trust (PCT)). There was a consistent steady reduction in risperidone as a percentage of total selected atypical antipsychotic utilisation following generics. A similar pattern was seen in Austria and Spain, with stable utilisation in one English PCT. However, there was considerable variation in the utilisation of generic risperidone, ranging from 98% of total risperidone in Scotland to only 14% in Ireland. Similarly, the price of generic risperidone varied considerably. In Scotland, generic risperidone was only 16% of pre-patent loss prices versus 72% in Ireland. Consistent findings of no increased prescribing of risperidone post generics with limited specific demand-side measures suggests no 'spillover' effect from one class to another encouraging the preferential prescribing of generic atypical antipsychotic drugs. This is exacerbated by the complexity of the disease area and differences in the side-effects between treatments. There appeared to be no clinical issues with generic risperidone, and prices inversely reflected measures to enhance their utilisation