Preparation, structural, dielectric and magnetic properties of LaFeO3-PbTiO3 solid solutions

Solid solutions of (1-x)LaFeO3-(x)PbTiO3 (0<x<1) have been prepared by conventional solid-state reaction. These complex perovskites have been studied by means of X-ray (XRPD) and neutron powder (NPD) diffraction, complemented with dielectric, magnetic, heat capacity and M\"ossbauer measurements. Complete solubility in the perovskite series was demonstrated. The NPD and XRPD patterns were successfully refined as orthorhombic (x \leq 0.7) and tetragonal (x \geq 0.8). A composition-driven phase transformation occurs within the interval 0.7<x<0.8. The samples with x<0.5 showed evidence of long-range magnetic ordering with an G-type antiferromagnetic arrangement of the magnetic moments of the Fe3+ cations in the B-site with propagation vector k = (0,0,0). Based on the obtained experimental data, a combined structural and magnetic phase diagram has been constructed. The factors governing the structural, dielectric and magnetic properties of (1-x) LaFeO3 - (x)PbTiO3 solid solutions are discussed, as well as their possible multiferroicity.Comment: 33 pages, 15 figure

Evaluation of Toxicom on Broilers Fed Mycotoxin Contaminated Ration and Vaccinated Against Gumboro

The aim of this study was to evaluate the possible protective effect of preparation which synthesized in Vitebsk State Academy of Veterinary Medicine adsorbent (Toxicom) 5g\kg diet against the toxic effects of mixed mycotoxins in growing broiler chickens. Total 75 chicks, one week age, were divided into 5 treated groups,15 birds for each. The first group (G1) fed a contaminated ration with mycotoxin and supplemented with toxicom 5g/kg of diet and vaccinated with gumboro vaccine at 15 and 22 days of age. The second group (G2) was fed a ration contaminated with mycotoxin and vaccinated with gumboro vaccine at 15 and 22 days of age and not supplemented with toxicom. The third group (G3) was fed intact broiler ration and vaccinated with gumboro vaccine at 15 and 22 days of age. The fourth group (G4) was only fed a contaminated ration with mycotoxins. The fifth group (G5) was fed intact broiler ration  as a control group. The diet was naturally contaminated with many mycotoxins and analyzed by ELISA and the level of mycotoxins were as follows : Aflatoxin B1 0.001 mg/kg, Dezoxivalenol 1.24 mg/kg, Zearalenon 0.068 mg/kg, Ochratoxin 0.005 mg/kg, T2 toxin 0.09 mg/kg, Fuminisen B1 0.2 mg/kg. The antibody titers for Infectious Bursal Disease vaccine (IBDv) was conducted by ELISA. It was concluded that this preparation which synthesized in Vitebsk State Academy of Veterinary Medicine is protect chickens body weight and decrease the effect of mycotoxins in comparison with the other groups and recommended for using as adsorbent in Republic of Belarus

ОПЫТ ДИАГНОСТИКИ И ЛЕЧЕНИЯ ПАЦИЕНТОВ С ТОТАЛЬНЫМ И СУБТОТАЛЬНЫМ АГАНГЛИОЗОМ КИШЕЧНИКА

Total and subtotal intestinal aganglionosis (hypogangliosis) is a severe and potentially lethal condition related to neuromuscular intestinal diseases. Some authors consider it as a rare, atypical and most severe form of rectocolic aganglionosis which constitutes 1% of all cases related to the disease [6,7,8]. According to meta-analysis performed by Ruttenstock, 68 patients with total aganglionosis were found in the world literature for 2009 [8]. Different surgical methods (Martin, Kimura, Zigler procedures (extended myectomy and myotomy), bringing down the ileum with formation of ileoanal anastomosis, Bianchi’s plasty and STEP-procedure, intestinal transplantation) are proposed for treatment of total intestinal aganglionosis; however, none of them were considered as superior to the others [3,6,8]. The article describes three clinical cases of total and subtotal intestinal aganglionosis in patients of the neonatal surgery department of Filatov Moscow Pediatric Clinical Hospital No. 13 in 2015-2016. According to our experience, the tactics of sparing resection with preservation of the small intestine maximum length is being optimal. However, it doesn’t exclude the need for durative parenteral nutritional support. Using domestic parenteral nutrition in the management of this group of patients is pharmaco-economically viable.Тотальный и субтотальный аганглиоз (гипоганглиоз) кишечника является тяжелым и потенциально летальным состоянием из группы нейромышечных заболеваний кишечника. Некоторыми авторами он рассматривается как редкая, атипичная и наиболее тяжелая форма болезни Гиршпрунга, составляющая 1% всех случаев данного заболевания [1, 2, 3]. По результатам мета-анализа, выполненного Ruttenstock, в мировой литературе на 2009 год было описано 68 пациентов с тотальным аганглиозом [3]. Для лечения тотального аганглиоза кишечника предлагаются различные хирургические методики: операции Мартина и Кимура, процедура Циглера (расширенная миоэктомия-миотомия), низведение подвздошной кишки с созданием илеоанального анастомоза, удлиняющая пластика по Бианчи и STEP-процедура, трансплантация кишечника, однако ни одна из них не доказала своего превосходства над другими [1, 3, 4]. В статье приведено описание трех клинических случаев тотального и субтотального аганглиоза кишечника, наблюдавшихся в отделении хирургии новорожденных ДГКБ № 13 им. Н.Ф. Филатова в 2015-2016 гг. Согласно нашему опыту тактика экономной резекции с сохранением максимальной длины тонкой кишки является оптимальной, однако она не исключает необходимости длительной парентеральной нутритивной поддержки. Использование техники домашнего парентерального питания в ведении данной группы пациентов является фармако-экономически целесообразным