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( Priyanka Kumari ),( Hong Lim Choi ),( Shamira Hazi Metali ),( Siti Anisah Hazi Yussof ),( Jiwoon Han ) 한국동물자원과학회(구 한국축산학회) 2015 한국축산학회지 Vol.57 No.9
Background: A simple binary scoring system (SBSS) was developed and used to assess the welfare measures of commercial broiler chickens in South Korea. We also correlated welfare measures with environmental parameters of broiler house. Our measures of welfare included lameness, hock burn (HB) and foot pad dermatitis (FPD), whilst environmental parameters included air temperature, relative humidity, air speed, light intensity, air quality (in particular carbon dioxide (CO2) and ammonia (NH3) concentrations) and airborne microbes. Results: The effect of environmental parameters on welfare measures was apparent even on 10-day-old broilers. A non-parametric correlation analysis revealed significant correlations between environmental parameters and welfare measures. The key environmental parameters were relative humidity and light intensity. The results indicate that there is a need for proper control of environmental conditions on poultry farms, which could reduce health problems and subsequently reduce disease and mortality. Conclusions: In conclusion, the simplicity of SBSS makes it preferable over more complex scoring systems and allows a farmer to more easily assess the welfare measures on their own farm.
Priyanka Bhosale,Yogesh Pore,Fahim Sayyad 한국약제학회 2012 Journal of Pharmaceutical Investigation Vol.42 No.6
The aim of the present study was to enhance the physicochemical properties of poorly aqueous soluble carvedilol (CRV) by preparing its microparticles in presence and/or in absence of a hydrophilic carrier. The polymeric microparticles of CRV were prepared with polyvinylpyrrolidone K30 with or without addition of adsorbents like Aerosil200 and/or Sylysia350 by using spray drying technique. The dissolution profiles revealed that the drug and polymer ratio and colloidal silica both played critical role in solubility enhancement. The spray dried microparticles and drug alone were characterized by differential scanning calorimetry (DSC), X-ray powder diffraction, Fourier transformation infrared spectroscopy (FTIR), particle size analysis and scanning electron microscopy (SEM). DSC analysis showed that CRV transformed from the crystalline state to amorphous state by spray drying, confirmed by disappearance of its melting peak. The results of the X-ray analysis were in agreement with the thermal analysis data. It did not show characteristic crystalline drug peaks which confirmed that the amorphous form of CRV was present in the CRV loaded microparticles. FTIR analysis demonstrated hydrogen bonding interaction with an absence of significant chemical interaction between CRV and polymer. Spherical microparticles were yielded with smooth surfaces as observed by SEM. All in all, this work reveals that spray drying is a suitable technique for preparation of microparticles with improved physicochemical properties of CRV.
In silico prediction of epitopes for Chikungunya viral strains
Priyanka Kori,Shrishailnath S. Sajjan,Shivakumar B. Madagi 한국약제학회 2015 Journal of Pharmaceutical Investigation Vol.45 No.6
Chikungunya is a viral infection transmitted by Aedes mosquitoes in humans. Currently there is no drug available for the treatment of this infection. In absence of a proven therapeutic, vaccines provide an alternative preventive measure for the spread of viral infection in risk prone population. The identification of epitopes is an important step in designing vaccines for viral infections. Traditional methods for vaccine production can be augmented by incorporation of in silico methods at epitopes identification stage. Protein sequences were retrieved for three different viral strains from primary database. Multiple sequence alignment for the retrieved sequences was performed by using MEGA 6.06 to spot the conserved regions. Various immunological databases were utilized to determine the binding affinity with T cells and B cells from structural and non-structural proteins from three different isolates of Chikungunya virus. Five different epitopes were predicted for both structural and non-structural proteins. The epitopes ‘‘KKKPGRRERMCMKIE’’ and ‘‘DAEKEAEEEREAELT’’ and ‘‘AEEEREAEL’’ were predicted as core sequences for class I and class II MHC molecules whereas ‘‘SSKYDLECAQ’’ and ‘‘QVLKAKNIGL’’ were predicted as probable B cell epitopes for structural and non-structural proteins respectively. The identified epitopes can be used for developing a broad spectrum vaccines having effectiveness against different strains of Chikungunya.
Priyanka Shiveshwarkar,Savier Vega Siurano,Mahri Kadyrova,Natalie Tran,Justyn Jaworski 한국고분자학회 2022 Macromolecular Research Vol.30 No.1
Polydiacetylene based sensors have been used for a variety of sensing applications. Here we demonstrate that diacetylene-containing amphiphiles could be spray processed to provide unique sensor coatings that may be applied to a variety of material surfaces. Utilizing an airbrushing technique, we examined processing parameters to yield spray-on sensors for detecting UV, temperature, as well as chemical/ solvent targets depending on the pendant side chain chemistry of the resulting polydiacetylene coating. We observed that the concentration, carrier solvent, and UV exposure time had a significant effect on the colorimetric response of the sprayed on coating with better responses observed at higher amphiphile concentration and shorter polymerization times. We expect this approach to generating spray-on responsive coatings will provide a widely deployable means for detection that may be customized for a variety of sensing applications.
Priyanka Singh,Aruna Nambirajan,Manish Kumar Gaur,Rahul Raj,Sunil Kumar,Prabhat Singh Malik,Deepali Jain 대한병리학회 2022 Journal of Pathology and Translational Medicine Vol.56 No.4
Epithelioid inflammatory myofibroblastic sarcoma (EIMS) is an aggressive subtype of inflammatory myofibroblastic tumor (IMT) harboring anaplastic lymphoma kinase (<i>ALK</i>) gene fusions and is associated with high risk of local recurrence and poor prognosis. Herein, we present a young, non-smoking male who presented with complaints of cough and dyspnoea and was found to harbor a large right lower lobe lung mass. Biopsy showed a high-grade epithelioid to rhabdoid tumor with ALK and desmin protein expression. The patient initially received 5 cycles of crizotinib and remained stable for 1 year; however, he then developed multiple bony metastases, for which complete surgical resection was performed. Histopathology confirmed the diagnosis of EIMS, with <i>ALK</i> gene rearrangement demonstrated by fluorescence in situ hybridization. Postoperatively, the patient is asymptomatic with stable metastatic disease on crizotinib and has been started on palliative radiotherapy. EIMS is a very rare subtype of IMT that needs to be included in the differential diagnosis of ALKexpressing lung malignancies in young adults.
A simplified model for biomass pyrolysis in a fluidized bed reactor
Priyanka Kaushal,Jalal Abedi 한국공업화학회 2010 Journal of Industrial and Engineering Chemistry Vol.16 No.5
A reaction scheme of a set of three parallel reactions followed by a set of two parallel reactions has been used to describe the primary and secondary reactions of biomass pyrolysis in a fluidized bed reactor. A simple first-order kinetic approach has been applied to predict the product yields. The pyrolysis model detailed in this paper is actually a sub-model. The effects of operating parameters on biomass pyrolysis product yield were simulated. Results show that reaction temperature plays an important role in the yield of bio-oil. The model is robust and can predict good results in a gasification environment as well. Good agreement between predicted and published results was obtained. 2010 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
Priyanka Saha,Anupam Das Talukdar,Sanjoy Singh Ningthoujam,Manabendra Dutta Choudhury,Deepa Nath,Lutfun Nahar,Satyajit Dey Sarker,Norazah Basar 셀메드 세포교정의약학회 2015 셀메드 (CellMed) Vol.5 No.3
Apart from being used as food, seed oils have also been used traditionally as medicinal products by several communities. However, the full medicinal potential of many seed oil plants is yet to be properly reviewed, particularly for their antimicrobial and antioxidant properties. North-East India has rich resources of seed oil plants. The availability of detailed information on these plants is quite limited. This review aims to explore and evaluate these seed oil plants of the North-East India with particular emphasis on their antimicrobial and antioxidant activities as well as chemical compositions. A comprehensive literature search on seed oil plants of this region has been performed. Seed oil yielding plants of this region can be categorized into two categories: plants that are used traditionally as sources of edible or medicinal oils and plants that are used for purposes other than as sources of oils. Many seed oil plants of this region have been reported to possess antimicrobial and antioxidant properties, and to produce various types of compounds. This review also highlights the importance of these plants in contributing to the local as well as the national economy of India.
Linearity-Distortion Analysis of GME- TRC MOSFET for High Performance and Wireless Applications
Priyanka Malik,R.S. Gupta,Rishu Chaujar,Mridula Gupta 대한전자공학회 2011 Journal of semiconductor technology and science Vol.11 No.3
In this present paper, a comprehensive drain current model incorporating the effects of channel length modulation has been presented for multi-layered gate material engineered trapezoidal recessed channel (MLGME-TRC) MOSFET and the expression for linearity performance metrics, i.e. higher order transconductance coefficients: gm1, gm2, gm3, and figure-of-merit (FOM) metrics; VIP2, VIP3, IIP3 and I-dB compression point, has been obtained. It is shown that, the incorporation of multi-layered architecture on gate material engineered trapezoidal recessed channel (GME-TRC) MOSFET leads to improved linearity performance in comparison to its conventional counterparts trapezoidal recessed channel (TRC) and rectangular recessed channel (RRC) MOSFETs, proving its efficiency for low-noise applications and future ULSI production. The impact of various structural parameters such as variation of work function, substrate doping and source/drain junction depth (Xj) or negative junction depth (NJD) have been examined for GME- TRC MOSFET and compared its effectiveness with MLGME-TRC MOSFET. The results obtained from proposed model are verified with simulated and experimental results. A good agreement between the results is obtained, thus validating the model.