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Biochar 2022年第1期4卷 986-1002页

作者： Mayank Singh MohdAhsan Versha Pandey Anupama Singh Disha Mishra Neerja Tiwari Pooja Singh Tanmoy Karak puja khare Crop Production and Protection DivisionCSIR-Central Institute of Medicinal and Aromatic PlantsLucknow 226015India Phytochemistry Division CSIR-Central Institute of Medicinal and Aromatic PlantsLucknow 226015India Upper Assam Advisory Centre Tea Research AssociationDikomDibrugarh 786101AssamIndia Academy of Scientific and Innovative Research(AcSIR) GaziabadIndia Biotechnology Division Central Institute of Medicinal and Aromatic PlantsLucknow 226015India

In this study,four biochars prepared from different crop residue waste *** bagasse(SBB),coconut shell(CNB),paddy straw(PDB),and distilled waste of lemongrass(LGB)were evaluated for removal of Remazol Brilliant Blue R from the aqueous *** RBBR adsorption capacities of biochar were 97-79%for SBB,99.9-99.47%for CNB,66.1-48%for PDB,and 78-68%for LGB,dominantly controlled by their aromaticity and mineral *** Langmuir and Freundlich isotherms and pseudo-second-order kinetic models have described the chemisorption of RBBR on biochar *** thermodynamic data suggested that adsorption was spontaneous and *** biochars demonstrated excellent reusability(till four cycles with 50-61%regeneration).The purified water and biochar dye sludge demonstrated no *** findings obtained in this study may provide supports for the potential of biochars for anionic dye removal from water and utilization of generated sludge for zero waste-producing technologies in the future.

关键词： Biochar Remazol Brilliant Blue R Dye Adsorption Biochar dye sludge

Physico-chemical and elemental investigation of aqueous leaching of high sulfur coal and mine overburden from Ledo coalfield of Northeast India

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International Journal of Coal Science & Technology 2018年第3期5卷 265-281页

作者： Madhulika Dutta puja khare Sanchita Chakravarty Durlov Saikia Binoy K. Saikia Polymer Petroleum and Coal Chemistry Group Materials Sciences and Technology Division CSIR-North East Institute of Science and Technology Jorhat 785006 India School of Applied Sciences Department of Chemistry University of Science and TechnologyRibhoi 793101 Meghalaya India Department of Chemistry CNB College Bokakhat 785612India Agrotechnology Division CSIR- Central Institute of Medicinal and Aromatic Plants Lucknow 226015 India Analytical Chemistry Division CSIR- National Metallurgical Laboratory Jamshedpur 831007 India

Acid mine drainage (AMD) is one of the major problems in high sulfur coal mining areas generating acidic water. The acidic mine water generated contain hazardous elements in varying concentrations. The Northeastern Indian coalfield produces considerable amounts of AMD. The AMD and metal leaching from coal and mine over burden (OB) are the two important naturally occurring processes. In order to know the AMD potential, the aqueous leaching experiment of a few coal and OB samples from the Ledo colliery of the Northeastern coalfield, Mergherita (India), at different time periods (1, 3, 5, and 8 h) and at different temperatures (25, 45, 65, and 90 °C) were performed in the laboratory. The physico-chemical analysis of the aqueous leachates shows the pH, electrical conductivity (EC), and total dissolved solid (TDS) in the range of 1.62–3.52, 106–2006 µs/cm, and 106–1003 ppm for the raw coal samples respectively. The OB samples produced pH, EC, and TDS in the range of 3.68–6.92, 48.6–480 µs/cm, and 69.5–240 ppm respectively. From the study, it was revealed that the concentrations of major (Si, Al, K, Na, Fe, Ca, Mg), minor (Mn) and trace/hazardous elements (As, Ba, Cd, Co, Cr, Cu, Hg, Ni, Pb, Se, Zn) considerably change with leaching time as well as with leaching temperature. Out of these elements As, Cd, Hg, Pb, Cr, and Se are of greater environmental importance. Alteration of the physico-chemical structure of the coal and OB samples resulting from leaching was also studied by field emission scanning electron microscope- energy-dispersive X-ray spectroscopy method. The release of the potentially hazardous elements from the raw coal and OB during leaching time periods to the leachates was detected by inductively coupled plasma-atomic emission spectroscopy and ion-chromatographic analyses. The major minerals found in coal and OB are quartz (SiO2), pyrite (FeS2), hematite, marcasite, and kaolinite. The association of different functional groups in minerals and their mode of

关键词：物理化学高硫煤沥滤排水元素印度东北煤田

Exploring the benefits of biochar over other organic amendments for reducing of metal toxicity in Withania somnifera

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Biochar 2019年第3期1卷 293-307页

作者： Nidhi Nigam Vineet Yadav puja khare Raghuvendra Pratap Singh Paurabi Das Karuna Shanker Ram Suresh Sharma Agronomy and Soil Science Division CSIR-Central Institute of Medicinal and Aromatic PlantsP.O.-CIMAPNear Kukrail Picnic SpotLucknow 226015India Analytical Chemistry Division CSIR-Central Institute of Medicinal and Aromatic PlantsLucknow 226015India Technology and Business Development Division CSIR-Central Institute of Medicinal and Aromatic PlantsLucknow 226015India

Biochar is considered as a good metal sequester and ameliorates the metal toxicity and uptake in ***,its effec-tiveness over other organic amendments is not well *** aim of this study is to compare the biochar amendments alleviating the levels of Pb and Cd in Withania somnifera *** with other organic *** manure,vermicom-post,and biochar were applied in the field spiked with highly available Pb and *** bioavailability and accumulation,plant growth and plant physiology,antioxidant enzymes and metabolite content of *** along with soil properties were evaluated in all *** indicates that the application of organic manures significantly alleviated the metal levels(33-72%)in the plant in comparison with *** herbage yield was significantly higher(33-69%)under different organic manures as compared to the metal *** metabolite contents and antioxidant enzymes were higher in metal treatments in comparison with *** manures were not only able to restrain the Pb and Cd in soil but also enhanced the soil microbial *** indicate that biochar amendments were more promising than farmyard manure and vermicompost due to the presence of more stable carbon in biochar and more alleviation in metal *** addition,net profit in the cultivation of *** was higher for biochar amendments(50%higher)compared to *** study recommended that biochar could be a better option for commercial and safer production of ***.

关键词： Toxic metals Withania somnifera Biochar Phytotoxicity

Spectroscopic, Kinetic Studies of Polyaniline-Flyash Composite

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Advances in Chemical Engineering and Science 2011年第2期1卷 37-44页

作者： Raju Khan puja khare Bimala Prasad Baruah Ajit Kumar Hazarika Nibaran Chandra Dey 不详

Polyaniline-fly ash (PANI-FA) composites were prepared by oxidative polymerization of aniline with fly ash in presence of ammonium persulphate (APS). The PANI-FA composites were prepared with different concentrations of fly ash to aniline ratio. The composites, so prepared, were characterized by UV-vis spectroscopy, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). The thermal stability was studied by TGA and total weight loss of PANI, FA and PANI-FA composites having FA composition of 0.02%, 0.1%, 0.5% and 1.0% were found to be 82%, 39.%, 67% 65%, 62% and 61%, respectively. The UV-vis spectroscopy of the PANI-FA polymeric composite shows absorption maxima at 315 and 350 nm (due to π-π* transition of the benzenoid rings), and 578-712 nm (due to charge transfer excitations of the quinoid structure), which are characteristic of emeraldine base. FTIR spectra of the PANI-FA composite is similar to that of pure polyaniline (PANI) but with the bands for C=N, C=C and C-N shifted to lower wave numbers, i.e., 1585, 1494, 1327 and 1113 cm?1 due to strong interaction of Fe2O3 and PANI matrix. SEM shows the complexation of metal oxide with emaraldine base of PANI, significantly changing the aggregate state of polymeric molecular chain.

关键词： Polyaniline Fly-Ash TGA UV-Vis Spectroscopy FT-IR Kinetic Study and SEM

Robust Facial Biometric Authentication System Using Pupillary Light Reflex for Liveness Detection of Facial Images

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Computer Modeling in Engineering & Sciences 2024年第4期139卷 725-739页

作者： puja S.Prasad Adepu Sree Lakshmi Sandeep Kautish Simar Preet Singh Rajesh Kumar Shrivastava Abdulaziz S.Almazyad Hossam M.Zawbaa Ali Wagdy Mohamed CSE Department Geethanjali College of EngineeringHyderabadTelangana501301India Department of Computer Science LBEF CampusKathmandu44600Nepal School of Computer Science Engineering and Technology(SCSET) Bennett UniversityGreater Noida201310India Department of Computer Engineering College of Computer and Information SciencesKing Saud UniversityP.O.Box 51178Riyadh11543Saudi Arabia CeADAR Ireland’s Centre for AI Technological University DublinDublinD07 EWV4Ireland Operations Research Department Faculty of Graduate Studies for Statistical ResearchCairo UniversityGiza12613Egypt Applied Science Research Center Applied Science Private UniversityAmman11937Jordan

Pupil dynamics are the important characteristics of face spoofing *** face recognition system is one of the most used biometrics for authenticating individual *** main threats to the facial recognition system are different types of presentation attacks like print attacks,3D mask attacks,replay attacks,*** proposed model uses pupil characteristics for liveness detection during the authentication *** pupillary light reflex is an involuntary reaction controlling the pupil’s diameter at different light *** proposed framework consists of two-phase *** the first phase,the pupil’s diameter is calculated by applying stimulus(light)in one eye of the subject and calculating the constriction of the pupil size on both eyes in different video *** above measurement is converted into feature space using Kohn and Clynes model-defined *** Support Vector Machine is used to classify legitimate subjects when the diameter change is normal(or when the eye is alive)or illegitimate subjects when there is no change or abnormal oscillations of pupil behavior due to the presence of printed photograph,video,or 3D mask of the subject in front of the *** the second phase,we perform the facial recognition ***-invariant feature transform(SIFT)is used to find the features from the facial images,with each feature having a size of a 128-dimensional *** features are scale,rotation,and orientation invariant and are used for recognizing facial *** brute force matching algorithm is used for matching features of two different *** threshold value we considered is 0.08 for good *** analyze the performance of the framework,we tested our model in two Face antispoofing datasets named Replay attack datasets and CASIA-SURF datasets,which were used because they contain the videos of the subjects in each sample having three modalities(RGB,IR,Depth).The CASIA-SURF datasets showed an 89.9%Equal Err

关键词： SIFT pupil CASIA-SURF pupillary light reflex replay attack dataset brute force

Safety and efficacy of intravitreal anti vascular endothelial growth factor for severe posterior retinopathy of prematurity with flat fibrovascular proliferation

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世界临床儿科杂志 2023年第4期12卷 220-229页

作者： puja Maitra Subramaniam Prema Venkatapathy Narendran Parag K Shah Pediatric Retina and Ocular Oncology Aravind Eye Hospital and Postgraduate Institute of OphthalmologyCoimbatore 641014Tamil NaduIndia

BACKGROUND Intravitreal anti-vascular endothelial growth factor(IVA)injection is known to cause contraction of fibrovascular proliferation(FVP),when present in severe retinopathy of prematurity(ROP).AIM To assess the structural outcomes of IVA injection in the treatment of severe posterior ROP with significant *** It was a retrospective study in which 36 eyes of 18 preterm babies who developed>4 clock hours of FVP in zone I or posterior zone II,were treated with either intravitreal 0.625 mg bevacizumab or intravitreal 0.2 mg of *** structural outcome included resolution of plus disease and FVP without the development of tractional retinal *** outcome measure included either full retinal maturation at follow-up or development of recurrent disease requiring additional *** outcomes included progression to retinal *** The mean gestational age of the 18 preterm babies was 30 wk(range 27-36),and mean birth weight was 1319 g(range 650-1980 g).Mean post-menstrual age(PMA)at the time of primary treatment was 35.5 wk(range 31-41 wk).All eyes showed regression of plus disease and FVP.5 eyes of 3 babies showed reactivation of disease and were treated with repeat IVA(n=2 eyes)or peripheral laser photocoagulation(n=3 eyes)respectively.16 out of 36(44%)reached retinal vascular maturation at final follow up at 5 *** There was good resolution of severe posterior ROP with FVP with IVA,with retinal maturity of 44%at 5 year follow-up and a reactivation rate of 13.8%.When the IVA injection is given prior to 37 wk PMA,while disease is in phase 2,it is less likely to cause contracture of pre-existing FVP.

关键词： Retinopathy of prematurity Anti-vascular endothelial growth factor injection Contraction Crunch phenomenon

Toward molecular models of proton pumping:Challenges,methods and relevant applications

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Science China Chemistry 2012年第1期55卷 3-18页

作者： RICCARDI Demian GOYAL puja Department of Chemistry and Theoretical Chemistry Institute University of Wisconsin

Motivated by several long-lasting mechanistic questions for biomolecular proton pumps,we have engaged in developing hybrid quantum mechanical/molecular mechanical(QM/MM) methods that allow an efficient and reliable description of long-range proton transport in transmembrane *** this review,we briefly discuss several relevant issues:the need to develop a "multi-scale" generalized solvent boundary potential(GSBP) for the analysis of chemical events in large trans-membrane proteins,approaches to validate such a protocol,and the importance of improving the flexibility of QM/MM *** recent studies of model and realistic protein systems are also discussed to help put the discussions into ***,these studies suggest that the QM/MM-GSBP framework based on an approximate density functional theory(SCC-DFTB) as QM holds the promise to strike the proper balance between computational efficiency,accuracy and *** additional improvements in the methodology and recent developments by others,especially powerful sampling techniques,this "multi-scale" framework will be able to help unlock the secrets of proton pumps and other biomolecular machines.

关键词：分子模型质子泵应用密度泛函理论生物分子跨膜蛋白远距离运输机械问题

Unusual case of a free anterolateral thigh flap partial necrosis in a COVID-19 positive young male following extremity reconstruction

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Chinese Journal of Traumatology 2023年第5期26卷 308-310页

作者： Sourabh Shankar Chakraborty Anjana Malhotra Urvi Ashok Shah Shylesh Ramesh Babu puja Bhaurao Dandekar Doddi Avinash Kumar Chindarkar Himanshu Prakash Department of Burn&Plastic Surgery All India Institute of Medical SciencesKalyaniWest Bengal741245India Department of Plastic Surgery South Eastern Railway Central HospitalKolkataWest Bengal700043India

Free flap procedure provides an overall success rate of 97%, which decreases to 85% in hypercoagulable states. COVID-19, as a pro-thrombotic disorder, therefore seems detrimental to free flap survival. We encountered a case of unique pattern of free flap partial failure in a young male who underwent extremity reconstruction. The patient was diagnosed as COVID-19 positive on the 3rd day post-reconstruction. The flap survived well for the first 7 days post-operatively, but gradually the skin got necrosed and the subcutaneous fat layer was preserved when debriding. To our knowledge, this is the only case in which the skin of the free flap of a COVID-19 positive patient was necrosed almost entirely subsequently, while the subcutaneous fat was relatively preserved.

关键词： COVID-19 Free anterolateral thigh flap Partial flap failure Freeflapcomplication

Awareness of the Importance of Cardiopulmonary Resuscitation Skills Following the Sudden Cardiac Arrest of Damar Hamlin during a Buffalo Bills Game

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Journal of Biosciences and Medicines 2023年第6期11卷 161-170页

作者： puja Sengupta Mariana Adieb Simona Maksimyan Maxim Crasta Lake Erie College of Osteopathic Medicine Elmira NY USA

Background: Cardiopulmonary resuscitation (CPR) is a life-saving skill that is often overlooked until a tragic event occurs. A popular NFL player, Damar Hamlin, safety for the Buffalo Bills, suffered a cardiac arrest on January 2, 2023. Due to prompt intervention and CPR, Hamlin survived the arrest and is playing again. This research sought to understand how people respond to this event on the internet. It also seeks to understand how this response can be used to raise CPR awareness. Design and Methods: Using Google Trends and Twitter data, we searched, downloaded, and retrospectively analyzed search interests relative to Hamlin’s cardiac arrest for a one-year duration. We searched for related keywords in the United States from March 2022 to March 2023, including “Damar Hamlin”, “sudden cardiac death”, “heart attack”, and “CPR”. Results: There was a significant rise in post-event Google searches that combined the terms “Damar Hamlin” and “SCD” (M = -28898.88, SE = 1537.66;t = 1.62, p Conclusion: Based on the analytics of these platforms, it can be concluded that there were active discussions and an awareness of life-saving skills such as CPR along with Hamlin’s cardiac event by his fans, as demonstrated by the data gathered from these platforms. This can provide us with valuable insight into human behavior and help us leverage this knowledge to promote health.

关键词： Sudden Cardiac Death CPR Heart Attack Damar Hamlin

Xanthogranulomatous cholecystitis:a premalignant condition?

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Hepatobiliary & Pancreatic Diseases International 2011年第2期10卷 179-184页

作者： Mila Ghosh puja Sakhuja Anil K Agarwal Department of Gastrointestinal Surgery GB Pant Hospita and Maulana Azad Medical College Department of Pathology GB Pant Hospita and Maulana Azad Medical College

BACKGROUND:Xanthogranulomatous cholecystitis(XGC)is an uncommon variant of chronic cholecystitis,characterized by marked thickening of the gallbladder wall and dense local *** often mimics a gallbladder carcinoma(GBC), and may coexist with GBC,leading to a diagnostic dilemma. Furthermore,the premalignant nature of this entity is not *** study was undertaken to assess the p53,PCNA and beta-catenin expression in XGC in comparison to GBC and chronic inflammation. METHODS:Sections from paraffin-embedded blocks of surgically resected specimens of GBC(69 cases),XGC(65), chronic cholecystitis(18)and control gallbladder(10)were stained with the monoclonal antibodies to p53 and PCNA, and a polyclonal antibody to beta-catenin.p53 expression was scored as the percentage of nuclei *** expression was scored as the product of the percentage of nuclei stained and the intensity of the staining(1-3).A cut-off value of 80 for this score was taken as a positive result. Beta-catenin expression was scored as type of expression-membranous,cytoplasmic or nuclear staining. RESULTS:p53 mutation was positive in 52%of GBC cases and 3%of XGC,but was not expressed in chronic cholecystitis and control gallbladders.p53 expression was lower in XGC than in GBC(P<0.0001).PCNA expression was seen in 65%of GBC cases and 11%of XGC,but not in chronic cholecystitis and control *** expression was higher in GBC than XGC(P=0.0001),but there was no significant difference between the XGC,chronic cholecystitis and control gallbladder ***-catenin expression was positive in the GBC,XGC, chronic cholecystitis and control gallbladder *** the expression pattern in XGC,chronic cholecystitis and control gallbladders was homogenously membranous,whereas in GBC the membranous expression pattern was altered to cytoplasmic and ***:The expression of p53,PCNA and beta-catenin in XGC was significantly different from GBC and similar to chronic cholecystitis,

关键词： xanthogranulomatous cholecystitis gallbladder cancer p53 PCNA beta-catenin