Discription on a new species of Elasmus westwood (Hymenoptera:Chalcidoidea) with notes on host-parasitic relationship of some Indian species

A new Indian species of Elasmus in described in the sub family Elasminae Eulophidae from Bareilly district (U.P.), with a host parasite list of some species reared from plant hosts such as fig receptacles, fruits and galls. The parasites emerged from galls made by insects mostly belonged to family Encentidae, Aphelimidae, Eulopidae and Brachonidae. Host parasite list in compiled from the catalogue (Verma and Hayat, 1986)

Improve Performance of Power and Stability Point for Photo Voltaic System by Fuzzy Logic

A renewable energy had been used in solar power generation since years ago. Solar energy is one of the forms of renewable energy source and it brings benefits to the residential that uses it as their alternative power supply. In order to increases the efficiency of system during rapid changing environmental conditions we propose the fuzzy logic controller. This thesis presents a fuzzy logic methods for variable environmental conditions (i.e. variable temperature and irradiation level), their difficulty while tracking and how those difficulties can be overcome efficiently by the other techniques. We are improving the power results of the PV cells by Fuzzy Logic

Neural Network based Statcom for Grid Connected wind Generator

Due to the increasing demand and restriction in building of the new lines complex modern power system presents serious challenges regarding stability of power system. Transient stability is also known as main source of the system insecurity. Because of that in the event of faults and disturbances it has to be maintained for power systems stable operation. In earlier power system to improve the transient stability supplementary controllers are used. These supplementary controllers are the shunt FACT devices like STATCOM (Static Synchronous Compensator) and SVC (Static VAR Compensator). Thesis suggests an application regarding NN (Neural Network). NN determines controller signal of STATCOM for grid active power and reactive power hence this improves stability of power system. Suggested controller is tested on 3-bus 2-machine system. The parameters like terminal voltage of buses, active power transmission line and reactive power of the system. The results which obtained are compared with the FLC system, Neural Network (NN). This proved that the Neural Network STATCOM gives better power result compare to that of STATCOM with FLC system. The effectiveness is verified by the Mat Lab/Simulink Software

Enhanced photodegradation of methylene blue by silica coated ZnSe nanoparticles

Herein, we report synthesis of silica-coated ZnSe nanoparticles (SZNPs), by varying the mass to volume ratio of ZnSe : TEOS i.e. mass to mass ratio of ZnSe : SiO2 ranging from 0.0267 to 0.1071. These SZNPs showed enhanced photodegradation of methylene blue (MB) solution under visible light. Silica coating on ZnSe NPs  reduces the toxicity concerns for its wide use as photocatalyst. XRD of bare ZnSe NPs confirms hexagonal crystal structure, and TEM depicts size range of SZNPs around 7 nm. FTIR and Raman measurements confirm the presence of different chemical and silanol groups attached to bare ZnSe and SZNPs. Optical absorption and photoluminescence (PL) show a red shift due to silica coating on ZnSe NPs compared to bare ZnSe. This is due to silanization of ZnSe, as silica shell reduces the recombination of photon-generated electron and hole pairs. Photocatalytic experiments on methylene blue (MB) by bare and SZNPs have been conducted, optimal SZNPs i.e. 0.0535 sample (mass ratio of ZnSe:SiO2) exhibits enhanced photo-generated free radicals. An increase in photodegradation of SZNPs, i.e. from 35 to 46% has been observed compared to bare counterparts (ZnSe). Stability decreased by only 7% after 4th cycle of reuse, depicting efficacy of the SZNPs photocatalyst in the degradation of MB. A pseudo-first-order reaction kinetics has been observed for photodegradation of MB with highest rate constant of 8.6 × 10-3 min-1 for SZNPs (1.0000:0.0535) sample

Endodontic management of open apex using MTA and platelet-rich fibrin membrane barrier: A newer matrix concept

Objectives: Endodontic management of open apex using MTA and platelet-rich fibrin membrane as an apical matrix barrier. Study design: An immature tooth with pulpal necrosis and periapical pathology imposes a great difficulty to the endodontist. Endodontic treatment options for such teeth consist of conventional apexification procedure with and without apical barriers. This article demonstrates the use of an apical matrix barrier in form of a platelet rich fibrin membrane for stabilization of MTA in root end apexification procedure. PRF is an autologous fibrin matrix containing a large quantity of platelet and leukocyte cytokines, which enhance healing by release of growth factors. These case reports present apexification and successful healing with combined use of MTA and PRF membrane as an apical barrier Results: PRF membrane can serve as an efficient apical matrix for condensation of MTA. Combination of PRF membrane and MTA is an effective method for management of difficult cases of open apex. PRF is a strong fibrin membrane enriched with platelet and growth factors that accelerate periapical healing

Endodontic management of single rooted immature mandibular second molar with single canal using MTA and platelet-rich fibrin membrane barrier: A case report

An immature tooth with pulpal necrosis and periapical pathology imposes a great difficulty to the endodontists. Endodontic treatment options for such teeth consist of conventional apexification procedure with and without apical barriers. Various materials have been tried as apical matrix in the past. This article demonstrates the newer concept of using platelet rich fibrin membrane as an apical matrix barrier for stabilization of MTA in root end apexification procedure. Platelet Rich Fibrin is an autologous fibrin matrix containing a large quantity of platelet and leukocyte cytokines, which enhance healing by release of growth factors. This case report represents successful management of a case of an immature mandibular second molar with single root and single c-shaped canal. The unusual canal morphology was diagnosed with the help of a CBCT scan. Faster periradicular healing and complete resolution of symptoms occurred with combined use of MTA and PRF membrane as an apical barrie

Effect of EndoActivator and Er,Cr:YSGG laser activation of Qmix, as final endodontic irrigant, on sealer penetration: a confocal microscopic study

Through chemomechanical debridement of the root canal is a primary requisite for successful endodontic therapy. Thus the aim of this study was to evaluate the effects of using QmiX alone, QmiX with EndoActivator and QmiX with Er,Cr:YSGG laser for final irrigation on sealer penetration into the dentinal tubules. 75 extracted human mandibular premolar teeth were treated with sodium hypochlorite (NaOCl) irrigation. The samples were divided into 5 groups according to the final irrigation solution used: (1) 17% EDTA and 2.5% NaOCl, (2) QmiX (3) QmiX with Er,Cr:YSGG laser and (4) QmiX with EndoActivator (5) 2.5%NaOCl. All teeth were obturated using cold lateral condensation technique with gutta percha and AH 26 sealer (Dentsply; DeTrey,Konstanz, Germany) labeled with Rhodamine B dye. The teeth were sectioned at distances of 2 and 5 from root apex. Total percentage and maximum depth of sealer penetration were measured using confocal laser scanning microscopy. Results of one way Anova analysis showed that there was a significant difference in the percentage and depth of sealer penetration among all groups at 3 and 5 mm level sections (P < .05). Within the groups maximum sealer penetration was recorded for Er,Cr:YSGG laser activated group. Greater depth of sealer penetration was recorded at 5mm as compared to 3mm in all the groups. Activation of QMix using EndoActivator and Er,Cr:YSGG laser enhanced the sealer penetration at apical and middle third. Thus Er,Cr:YSGG laser and EndoActivator may act as an appropriate adjunct during chemomechanical preparation of the root canal

Adult Necrotising Enterocolitis: a Rare Entity

A case of Adult Necrotising Enterocolitis in an adult female whom diagnosed with intestinal obstruction was reported. On exploratory laparotomy, the mechanical caused was not found although major part of small bowel, caecum and proximal ascending colon were gangrenous along with intervening normal parts. Resection of affected bowel was performed followed by jejunostomy and transverse colostomy. Unfortunately, the patient not survive in the postoperative periods. Adult Necrotising Enterocolitis may mimic intestinal obstruction clinically or radiologically and prompt medical and surgical intervention is indicated in doubtful cases although it carries a poor prognosis. Key words: adult necrotizing Enterocolitis, non-occlusive mesenteric ischemia, gangrenous bowe

Complicated Crown-Root Fracture Treated Using Reattachment Procedure: A Single Visit Technique

Complicated crown-root fracture of maxillary central and lateral incisors is common in case of severe trauma or sports-related injury. It happens because of their anterior positioning in oral cavity and protrusive eruptive pattern. On their first dental visit, these patients are in pain and need emergency care. Because of impaired function, esthetics, and phonetics, such patients are quite apprehensive during their emergency visit. Successful pain management with immediate restoration of function, esthetics and phonetics should be the prime objective while handling such cases. This paper describes immediate treatment of oblique crown root fracture of maxillary right lateral incisor with reattachment procedure using light transmitting fiber post. After two and half years, the reattached fragment still has satisfying esthetics and excellent function

Synthesis, characterization and optical properties of CdSe/CdS and CdSe/ZnS core-shell nanoparticles

Controlled organic synthesis method used for the preparation of cadmium selenide (CdSe) quantum dots, which are covered with cadmium sulfide (CdS) and zinc sulfide (ZnS) using TOP mediated has been presented in this paper. The size, shape, internal structure, chemical composition and functional groups of the core-shell nanoparticles were analyzed using X-ray diffraction, transmission electron microscopy, high resolution transmission electron microscopy, energy dispersive spectra and FTIR. These studies show that the particle size is in 2-10 nm range with hexagonal phase. The optical properties were analyzed through UV-visible spectroscopy, photoluminescence spectroscopy and micro-Raman spectroscopy. Photoluminescence blue shift and broadening of Raman spectrum further confirm the narrow size of particles