A rare pediatric renal tumor: classic congenital mesoblastic nephroma: two cases and review of literature

Background Mesoblastic nephroma (Boland’s tumor) is the most common benign renal tumor occurring in infants and neonates. The most common presentation is abdominal mass, but it can have varied presentations because of associated paraneoplastic syndromes. Majority of these tumors can be cured with surgical excision alone; however, long-term follow-up is required for recurrence or metastasis. Histopathologically, it is divided into two subtypes: classic and cellular. The less common cellular congenital mesoblastic nephromas have cellular elements in them and tend to have a more malignant potential.Patients and methods Two patients were studied over a period of 2 years from June 2010 to June 2012.Results By reporting two patients presenting in the infantile period with classic congenital mesoblastic nephromas, an attempt is made in this paper to characterize the clinical behavior of this variety of renal tumors. Hypertension and paraneoplastic syndromes can be associated with this tumor. Herein we compare our experience with other similar cases reported in the literature.Conclusion When renal tumors occur in infancy or at neonatal age, mesoblastic nephroma should be kept in mind. Association of hypertension and paraneoplastic syndromes should be looked for. Surgery is usually curative and postoperative follow-up for recurrence is required, more so in cellular variety

Hydrophobically-modified chitosan nanoliposomes for intestinal drug delivery

A novel chitosan derivative, O-palmitoyl chitosan (OPC) was synthesized from chitosan and palmitoyl chloride using methane-sulfonic acid as a solvent. The success of synthesis was confirmed by Fourier transform infra-red (FT-IR) spectroscopy and proton NMR spectroscopy (H-NMR). Liposomes encapsulating ferrous sulphate as a model hydrophilic drug for intestinal delivery were prepared with or without OPC inclusion (Lipo-Fe and OPC-Lipo-Fe). Entrapment of iron was significantly higher in OPC containing liposomes compared to controls. Quantitative iron absorption from the OPC liposomes was significantly higher (1.5-fold P< 0.05) than free ferrous sulphate controls. Qualitative uptake analysis by confocal imaging using coumarin-6 dye loaded liposomes also indicated higher cellular uptake and internalization of the OPC-containing liposomes. These findings suggest that addition of OPC during liposome preparation creates robust vesicles that have improved mucoadhesive and absorption enhancing properties. The chitosan derivative OPC therefore provides a novel alternative for formulation of delivery vehicles targeting intestinal absorption

(Z)-2-(2-Isopropyl-5-methyl­phen­oxy)-N′-(2-oxoindolin-3-yl­idene)acetohydrazide

In the title Mannich base, C20H21N3O3, an isatin derivative of thymol, the O—CH2—C(=O)–N(H)—N fragment connect­ing the aromatic and fused-ring systems is approximately planar, with the N—N single bond in a Z configuration. The amino H atom of this N—N fragment is intra­molecularly hydrogen bonded to the carbonyl O atom of the indolinone fused ring as well as to the phen­oxy O atom of the aromatic ring. The amino H atom of the indoline fused ring forms a hydrogen bond with the double-bond O atom of an adjacent mol­ecule, this hydrogen bond giving rise to a linear chain motif

FAMC: Face Authentication for Mobile Concurrence

It has been observed in the last decades that face recognition has acquired a large amount of attention and curiosity. Benefits of this have been seen in quite a few applications. An architecture which has been implemented earlier addresses the face analysis domain. As compared to other biometrics, face recognition is more advantageous but it is particularly subject to spoofing. The whole cost of the system increases since the accuracy of this technique involves the estimation of the three dimensionality of faces. An effective and efficient solution for face spoofing has been proposed in the paper. The growing use of mobile devices has been a growing concern due to their ability to store and exchange sensitive data. Thus this has given encouragement to the interest of people, to exploit their abilities, from one side, and to protect users from malicious data, on the other side. It is important to develop and deliver secure access in this scenario and identification protocols on mobile platforms are another upcoming aspect that also requires attention to deal on the commercial and social use of identity management system. After all these conclusions, the earlier architecture proposes biometrics as the choice for technology which has been also implemented and described in the earlier architecture. The earlier architecture is designed for mobile devices. This architecture thus acts as an embedded application that provides both verification and identification functionality. It includes identity management to support social activities. Examples of identity management system are finding doubles in a social network. Privacy has been provided by these functionalities which help to overcome the security concern. The architecture of FAMC: Face Authentication for Mobile Concurrence is modular. Functionalities like image acquisition, anti-spoofing, face detection, face segmentation; feature extraction and face matching have been provided by its implementation. The behavior of FAMC allows for recognition and best biometrics sample selection. DOI: 10.17762/ijritcc2321-8169.150310

2-{[{2-Hy­droxy-3-[2-methyl-5-(propan-2-yl)phen­oxy]prop­yl}(pyridin-2-ylmeth­yl)amino]­meth­yl}phenol

In the title racemic compound, C26H32N2O3, an intra­molecular O—H⋯N hydrogen bond is formed between the phenolic OH group and the tertiary amine N atom. Another O—H⋯N hydrogen bond that is formed between the OH group and the pyridine N atom links the mol­ecules into a polymeric chain extending along the a axis. The structure is further stabilized by intramolecular and intermolecular C—H⋯O interactions

Магнитоэлектрические свойства мультиферроиков BiFeO3 замещенных цинком

Проведены исследования магнитоэлектрических свойств керамических образцов мультиферроиков BiFe1−xZnxO3 и Bi1−xZnxFe1−xZnxO3 в области магнитных полей от 0 до 80kOe при комнатной температуре. Все образцы имеют линейные зависимости магнитоэлектрического коэффициента αME с малыми горбообраз- ными максимумами αME как при 10, так и при 85 kHz. Проведенные магнитоэлектрические исследования в образцах серий феррита висмута с двойным замещенным Zn показывает, что двойное замещение ионов Bi3+ и Fe3+ ионами Zn2+ не дают желаемого усиления магнитоэлектрических свойств по сравнению с ординарным замещением Zn2+

Magnetoelectric Properties of Zinc-Substituted BiFeO3 Multiferroics

The magnetoelectric properties of ceramic samples of BiFe1–xZnxO3 and Bi1–xZnxFe1–xZnxO3 multiferroics have been studied in magnetic fields from 0 to 80 kOe at room temperature. All the samples have the linear dependences of magnetoelectric coefficient αME with low hump-like maxima of αME at 10 kHz and also at 85 kHz. These magnetoelectric studies of the bismuth ferrites with doubly substituted Zn show that the double substitution of Zn2+ ions for Bi3+ and Fe3+ ions does not lead to desired enhancement of the mag- netoelectric properties as compared with the ordinary substitution of Zn2+

Heat capacity of nanostructured multiferroics BiFe1–x Zn x O3

The heat capacity of ceramic BiFe1–x Zn x O3 multiferroics has been studied in the temperature range 150–750 K. It is found that the antiferromagnetic transition temperature T N slightly shifts to lower temperatures as the concentration of the substitutional impurity Zn increases. An excess heat treatment has been observed; it is considered as the Schottky anomaly in three-level states