K. Vanadeep, R. Sada Siva Murty, M. Krishnaiah,
Panchangam is the traditional Hindu Almanac that has been in practice for 5,000 years. Invaluable meteorological ... planet-star conjunctions, transits, etc. Five components of Panchangam , namely Tithi , Vaaram , Nakshatram , Yogam and Karanam , along ... rainfall have been enlisted. General climatic summary of Panchangam months during the period of study (1992-2004) has been furnished. Panchangam year starts from Chaitram (April) and ends with Phaalgunam (March). Popular ' Pidaparthi Panchangam ' was used for this study. To estimate rainfall ...
Tópico(s): Tropical and Extratropical Cyclones Research
2012 - Indian Society for Education and Environment | Indian Journal of Science and Technology
Vivek Aggarwal, Anjali Mishra, Panchangam Ramakanth Bhargav, Pooja Ramakant,
... papers by this authorPanchangam R. K. Bhargav MS, Panchangam R. K. Bhargav MS Department of Endocrine Surgery, ... papers by this authorPanchangam R. K. Bhargav MS, Panchangam R. K. Bhargav MS Department of Endocrine Surgery, ...
Tópico(s): Genetic Syndromes and Imprinting
2009 - Wiley | ANZ Journal of Surgery
Suresh Koppula, Poonam Jagasia, Murali Krishna Panchangam, Surendra Babu Manabolu Surya,
NiCo(BDC) bimetallic Metal-Organic Framework (MOF) is impregnated with MnO2 particles to synthesize a highly stable NiCo(BDC)@MnO2 composite. This MOF composite is applied for the removal of Copper (II), Chromium (VI), and Uranium (VI) heavy metal ions from aqueous solutions using batch adsorption and the fixed-bed column method. The physicochemical properties of the composite were analyzed by Fourier transform infrared spectrometry (FTIR), powder X-ray Diffraction (PXRD), Scanning Electron Microscope ( ...
Tópico(s): Extraction and Separation Processes
2022 - Elsevier BV | Journal of Solid State Chemistry
Rajeeva Lochana Panchangam, R. Nishanth Rao, M. M. Balamurali, Tejashri Hingamire, Dhanasekaran Shanmugam, Venkatraman Manickam, Kaushik Chanda,
In this work, we have synthesized a series of novel C,N-cyclometalated 2H-indazole-ruthenium(II) and -iridium(III) complexes with varying substituents (H, CH3, isopropyl, and CF3) in the R4 position of the phenyl ring of the 2H-indazole chelating ligand. All of the complexes were characterized by 1H, 13C, high-resolution mass spectrometry, and elemental analysis. The methyl-substituted 2H-indazole-Ir(III) complex was further characterized by single-crystal X-ray analysis. The cytotoxic activity of ...
Tópico(s): Synthesis and Biological Evaluation
2021 - American Chemical Society | Inorganic Chemistry
Jheng-Sian Yang, Webber Wei-Po Lai, Sri Chandana Panchangam, Angela Yu‐Chen Lin,
Perfluorooctanoic acid (PFOA) have been widely studied due to their persistence, bioaccumulation and possible toxic effects. In this work, we investigated a photoelectrochemical (PEC) system consisting of a graphene oxide-titanium dioxide (GOP25) anode coated on fluorine-doped tin oxide (FTO) glass for removal of PFOA in an aquatic environment. The GOP25/FTO anode was fabricated and well characterized. Nearly complete decomposition of 0.5 mg/L PFOA was achieved after 4 h of PEC treatment with an initial ...
Tópico(s): Atmospheric chemistry and aerosols
2020 - Elsevier BV | Journal of Hazardous Materials
Chaitanya Panchangam, David A. White, Suma Goudar, Brian Birnbaum, Lindsey Malloy-Walton, Jami Gross‐Toalson, Kimberly J. Reid, Girish Shirali, Anitha Parthiban,
Children and adolescents with cardiac disease (CCD) have significant morbidity and lower quality of life. However, there are no broadly applicable tools similar to the frailty score as described in the elderly, to define functional phenotype in terms of physical capability and psychosocial wellbeing in CCD. The purpose of this study is to investigate the domains of the frailty in CCD. We prospectively recruited CCD (8-17.5 years old, 70% single ventricle, 27% heart failure, 12% pulmonary hypertension; ...
Tópico(s): Cardiovascular Function and Risk Factors
2020 - Springer Science+Business Media | Pediatric Cardiology
R. Nishanth Rao, Rajeeva Lochana Panchangam, Venkatraman Manickam, M. M. Balamurali, Kaushik Chanda,
Abstract In this work, a series of novel C−N cyclometalated 2 H ‐indazole Ru(II) and Ir(III) complexes were synthesized, wherein chelating ligands with substituents like H, and isopropyl group in the R 4 position of the phenyl ring of the 2 H ‐indazole chelating ligand are present. The cytotoxicity of Ru(II) and Ir(III) complexes has been evaluated against different human cancer cell lines (HeLa, MCF‐7, and A549) in a concentration‐dependent manner. The new iridium complex with isopropyl substituent ...
Tópico(s): Synthesis of Tetrazole Derivatives
2020 - Wiley | ChemPlusChem
Yen-Ching Lin, Sri Chandana Panchangam, Lichun Liu, Angela Yu‐Chen Lin,
Photolysis is considered one of the most important mechanisms for the degradation of pharmaceuticals. Photodecomposition processes to remove pharmaceuticals in water treatment presently use artificial UV light incorporated in advanced oxidation processes. However, UV lighting devices consume a substantial amount of energy and have high operational costs. To develop low energy treatment systems and make good use of abundant sunlight, a natural energy resource as a green technology is needed. As such, ...
Tópico(s): Advanced Photocatalysis Techniques
2018 - Elsevier BV | Chemosphere
Chaitanya Panchangam, Eric Dean Merrill, Geetha Raghuveer,
Abstract Atherosclerotic cardiovascular disease is a leading cause of death and disability worldwide, and the atherosclerotic process begins in childhood. Prevention or containment of risk factors that accelerate atherosclerosis can delay the development of atherosclerotic cardiovascular disease. Although current recommendations are to periodically screen for commonly prevailing risk factors for atherosclerosis in children, a single test that could quantify the cumulative effect of all risk factors ...
Tópico(s): Hemodynamic Monitoring and Therapy
2018 - Cambridge University Press | Cardiology in the Young
Sri Chandana Panchangam, Chandra Sekhar Yellatur, Jheng-Sian Yang, Loka Subramanyam Sarma, Angela Yu‐Chen Lin, V. Venkatramu,
The present work describes the facile synthesis of the TiO2-graphene nanocomposites (TGNCs) graphene oxide-TiO2 and reduced graphene oxide-TiO2 and evaluates their photocatalytic performance and mechanism in the decomposition of intractable perfluorooctanoic acid (PFOA). More than 90% photocatalytic PFOA decomposition was achieved by the TGNCs (200 mg/L), while only 16% of the initial 12 μM PFOA was decomposed by the commercial TiO2. The presence of graphene provided surface enhancement effects and ...
Tópico(s): Atmospheric Ozone and Climate
2018 - Elsevier BV | Journal of environmental chemical engineering
Rajeeva Lochana Panchangam, Venkatraman Manickam, Kaushik Chanda,
Abstract Simultaneous C−N, and N−N bond‐forming methods for one‐pot transformations are highly challenging in synthetic organic chemistry. In this study, the Cu 2 O rhombic dodecahedra‐catalyzed synthesis of 2 H ‐indazoles is demonstrated with good to excellent yields from readily available chemicals. This one‐pot procedure involves Cu 2 O nanoparticle‐catalyzed consecutive C−N, and N−N bond formation followed by cyclization to yield 2 H ‐indazoles with broad substrate scope and high functional group ...
Tópico(s): Synthesis and Biological Evaluation
2018 - Wiley | ChemMedChem
Amar Vennapusa, Bhargav R. K. Panchangam, Mukharjee S. S. Madivada,
Objective: This study is aimed to evaluate the safety, feasibility, and efficacy of a novel technique: laparoscopic sleeve gastrectomy with loop gastroileal bypass. Summary of Background Data: Standard bariatric surgeries, such as sleeve gastrectomy and Roux-en-Y gastric bypass, although very effective, carry certain inherent limitations and inevitable sequelae. Newer bariatric/metabolic surgeries are required to address these limitations. Methods: Between February 2016 and February 2018, a total ...
Tópico(s): Obesity and Health Practices
2017 - The International College of Surgeons | International Surgery
Angela Yu‐Chen Lin, Sri Chandana Panchangam, Yu‐Ting Tsai, Tsung‐Hsien Yu,
Tópico(s): Atmospheric chemistry and aerosols
2014 - Springer Science+Business Media | Environmental Monitoring and Assessment
Diky Setya Diningrat, S.M. Widiyanto, Adi Pancoro, Iriawati Iriawati, Donghwan Shim, B. Panchangam, Nicole Zembower, John E. Carlson,
Teak is one of the highly famous woody plant species for its premier quality of wood. Teak has problem on productivity because of long reproductive cycle. The problem is basically related to mechanism of flower development. The aim of this study was preliminary development of expressed gene database to characterize the floral transcriptome in teak. Two subtracted cDNA libraries were constructed from vegetative and generative bud tissues. Libraries were sequenced using Illumina MiSeq technology which ...
Tópico(s): Plant Molecular Biology Research
2014 - | Journal of Plant Sciences
Kai-Hsing Yang, Yen-Ching Lin, Meng‐Der Fang, Chung‐Hsin Wu, Sri Chandana Panchangam, Pui-Kwan Andy Hong, Cheng‐Fang Lin,
The abundance of perfluorooctanoic acid (PFOA) in the aquatic environment makes it important to understand the influence of important parameters affecting the partition of PFOA onto sediment. With a focus on the influence by dissolved organic matter (DOM), we investigated the sorption of PFOA to river sediment downstream of a semiconductor and optoelectronic industrial complex that discharged wastewater with a considerable amount of PFOA in it. The dominant components of the sediment were silica oxide (∼ ...
Tópico(s): Chemical Analysis and Environmental Impact
2013 - Taylor & Francis | Separation Science and Technology
Sri Chandana Panchangam, Karthikeyan Janakiraman,
The production and consumption of coffee and tea results in the generation of huge quantities of colored wastewaters, and these are accountable for certain problems like color, BOD, toxicity, and odor when discharged into the aquatic environment. In this study, the color from the aqueous infusions of coffee and tea was removed by chemical coagulation, using coagulants like ferrous sulfate, alum, and lime, and the chemical coagulation was also used for the evaluation of both the process efficiency ...
Tópico(s): Caching and Content Delivery
2013 - Taylor & Francis | Desalination and Water Treatment
Angela Yu‐Chen Lin, Sri Chandana Panchangam, Cheng-Yi Chang, Hong Peng, Han‐Fang Hsueh,
The elimination of recalcitrant, ubiquitous perfluoroalkyl acids (PFAAs) such as perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) is desirable for reducing potential human health and environmental risks. We here report the degradation of PFOA and PFOS by 85-100% via ozonation under alkaline condition being studied at environmentally relevant contaminant concentrations of 50 μg L(-1) to 5 mg L(-1), with enhanced removal rates by addition of hydrogen peroxide. Enhanced removal is achieved ...
Tópico(s): Atmospheric Ozone and Climate
2012 - Elsevier BV | Journal of Hazardous Materials
Mark L. Palmer, Dennis R. Claflin, John A. Faulkner, Appaji Panchangam,
Tópico(s): Sports injuries and prevention
2011 - Springer Science+Business Media | Journal of Muscle Research and Cell Motility
... Environmental Science & Technology, 43: 4009– 4015. Lin AYC, Panchangam SC, Ciou PS. (2010) High levels of perfluorochemicals ...
Tópico(s): Atmospheric chemistry and aerosols
2011 - Wiley | EFSA Journal
Tsung‐Hsien Yu, Angela Yu‐Chen Lin, Sri Chandana Panchangam, Pui-Kwan Andy Hong, Ping-Yi Yang, Cheng‐Fang Lin,
In the present study, the removal mechanisms of four antibiotics (sulfamethoxazole, sulfadimethoxine, sulfamethazine, and trimethoprim) and four non-steroidal anti-inflammatory drugs (acetaminophen, ibuprofen, ketoprofen, and naproxen) in immobilized cell process were investigated using batch reactors. This work principally explores the individual or collective roles of biodegradation and bio-sorption as removal routes of the target pharmaceuticals and the results were validated by various experimental ...
Tópico(s): Pharmacological Effects and Assays
2011 - Elsevier BV | Chemosphere
Kok-Kwang Ng, Cheng‐Fang Lin, Sri Chandana Panchangam, Pui-Kwan Andy Hong, Ping-Yi Yang,
A novel Bio-Entrapped Membrane Reactor (BEMR) packed with bio-ball carriers was constructed and investigated for organics removal and membrane fouling by soluble microbial products (SMP). An objective was to evaluate the stability of the filtration process in membrane bioreactors through backwashing and chemical cleaning. The novel BEMR was compared to a conventional membrane bioreactor (CMBR) on performance, with both treating identical wastewater from a food and beverage processing plant. The new ...
Tópico(s): Wastewater Treatment and Nitrogen Removal
2011 - Elsevier BV | Water Research
Angela Yu‐Chen Lin, Sri Chandana Panchangam, Pei-Sen Ciou,
We studied perfluorochemicals (PFCs) in the influents and effluents of two municipal wastewater treatment plants (MWWTPs) and in the effluents of an industrial wastewater treatment plant (IWWTP). The impact of IWWTP effluents on the receiving rivers (the Nanmen and Keya Rivers) was evaluated by measuring PFC levels in the surface waters of both rivers and the sediments of the Nanmen River. Perfluorooctane sulfonate (PFOS) (293 ng L(-1)) and perfluorohexanoic acid (406 ng L(-1)) were identified as the compounds ...
Tópico(s): Atmospheric chemistry and aerosols
2010 - Elsevier BV | Chemosphere
Yen-Ching Lin, Sri Chandana Panchangam, Chung‐Hsin Wu, Pui-Kwan Andy Hong, Cheng‐Fang Lin,
Tópico(s): Building materials and conservation
2010 - Elsevier BV | Chemosphere
Kok-Kwang Ng, Cheng‐Fang Lin, Shaik Khaja Lateef, Sri Chandana Panchangam, Pui-Kwan Andy Hong, Ping-Yi Yang,
The fixed carrier biological system (FCBS) has been developed for treatment of wastewater with an intent to achieve high simultaneous removal of carbon and nitrogen in a single through-put process. It is believed that a longer sludge retention time (SRT), high dissolved oxygen (DO), low suspended solids and good contact with the bio-balls in an FCBS possibly enable less production of extracellular polymeric substances (EPS) and soluble microbial products (SMP). The present study relates the role of SMP ...
Tópico(s): Extraction and Separation Processes
2010 - Elsevier BV | Separation and Purification Technology
Sri Chandana Panchangam, Angela Yu‐Chen Lin, Jia-Hong Tsai, Cheng‐Fang Lin,
Decomposition of perfluorinated chemicals is of significant interest in both scientific and industrial perspectives. Here, we report the decomposition of perfluorooctanoic acid (PFOA) under sonication-assisted photocatalysis by utilizing commercial TiO2 (RdH) and home-made TiO2 (sol–gel) as photocatalysts at ambient temperature, pressure and near neutral pH with the irradiation of 254 nm UV light. PFOA was decomposed into fluoride ions and to several perfluorinated carboxylic acids (PFCAs) with a shorter ...
Tópico(s): Atmospheric Ozone and Climate
2009 - Elsevier BV | Chemosphere
Sri Chandana Panchangam, Angela Yu‐Chen Lin, Khaja Lateef Shaik, Cheng‐Fang Lin,
Decomposition of perfluorocarboxylic acids (PFCAs) is of prime importance since they are recognized as persistent organic pollutants and are widespread in the environment. PFCAs with longer carbon chain length are particularly of interest because of their noted recalcitrance, toxicity, and bioaccumulation. Here in this study, we demonstrate efficient decomposition of three important PFCAs such as perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA) and perfluorodecanoic acid (PFDA) by heterogeneous ...
Tópico(s): Atmospheric Ozone and Climate
2009 - Elsevier BV | Chemosphere
Angela Yu‐Chen Lin, Sri Chandana Panchangam, Huan-Yo Chen,
Contamination of natural aquatic environments with human-use pharmaceuticals poses a significant potential threat to local ecosystems. However studies of the risk assessment of this contamination are limited, in part because currently the environmental concentration prediction is logistically and technically difficult to perform. In this study, 1) a strategic method to determine occurrence and risk of pharmaceutical compounds in an aquatic environment is proposed, and 2) this method is applied to ...
Tópico(s): Effects and risks of endocrine disrupting chemicals
2009 - Royal Society of Chemistry | Journal of Environmental Monitoring
Appaji Panchangam, Dennis R. Claflin, Mark L. Palmer, John A. Faulkner,
A laser-diffraction technique was developed that rapidly reports the lengths of sarcomeres (Ls) in serially connected sectors of permeabilized single fibers. The apparatus translates a laser beam along the entire length of a fiber segment within 2 ms, with brief stops at each of 20 contiguous sectors. We tested the hypothesis that during lengthening contractions, when maximally activated fibers are stretched, sectors that contain the longer sarcomeres undergo greater increases in Ls than those containing ...
Tópico(s): Sports Performance and Training
2008 - Elsevier BV | Biophysical Journal
AtchutaKameswararao Avasarala, Saibharghavi Panchangam,
It is well-known that every health problem, not only presents itself with different epidemiological profiles in different population settings, but is also perceived and managed differently. Having knowledge of these variations in its presentations and perceptions in different population settings, for example, in urban and rural settings, will be useful for its successful management.To study differences in epidemiological profiles, perceptions, socio economic losses, and quality-of-life losses and ...
Tópico(s): Menstrual Health and Disorders
2008 - Medknow | Indian Journal of Community Medicine
Angela Yu‐Chen Lin, Sri Chandana Panchangam, Chao-Chun Lo,
Tópico(s): Atmospheric chemistry and aerosols
2008 - Elsevier BV | Environmental Pollution