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  • 1
    Publication Date: 2018-10-24
    Description: Here, we have reported the sensing characteristics of CuO thin films towards volatile gases like ammonia, acetone and ethanol. The CuO films were deposited on glass substrate by RF magnetron sputtering at 350 °C and 400 °C. The characteristics of CuO thin films grown at both temperatures were analyzed using X-ray diffractometer (XRD), UV-Vis spectrometer, atomic force microscope (AFM), scanning electron microscope (SEM) and Fourier transform infrared spectrometer (FTIR). The thin films showed mesoporous morphology with average crystallite size of 78 nm and 36 nm for films grown at 350 °C and 400 °C, respectively. As the film grown at 400 °C showed better properties, it has been preferred for the gas sensing analysis. Gas sensing properties of the film towards different concentration (50-250 ppm) of ammonia, acetone and ethanol were studied in chemi-resistive mode. As expected, an increase in resistance with concentration of gases was observed due to the p-type nature of CuO thin...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 2
    Publication Date: 2018-10-24
    Description: SnO 2 nanoparticles were synthesized by co-precipitation technique. The synthesized SnO 2 nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and UV-visible diffused reflectance spectrometer (DRS). The XRD results addressed that the SnO 2 nanoparticles was crystallized in rutile tetragonal structure. The SEM analysis confirms that the prepared nanopowder is composed of nanoparticles. Analysis of the DRS UV-Vis spectrum showed that the band gap of the synthesized SnO 2 is to be ∼3.4 eV. The small cladding portion of the optical fiber was replaced with the synthesized nanoparticles. The ammonia sensing characteristics of the prepared SnO 2 nanoparticles were analyzed for different wavelength ranges (red, yellow and blue) using polymethyl methacrylate fiber. It has been found that the synthesized SnO 2 nanoparticles shows high sensitivity (∼23) in yellow wavelength range compared...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 3
    Publication Date: 2014-05-30
    Description: The availability of human genome sequence has transformed biomedical research over the past decade. However, an equivalent map for the human proteome with direct measurements of proteins and peptides does not exist yet. Here we present a draft map of the human proteome using high-resolution Fourier-transform mass spectrometry. In-depth proteomic profiling of 30 histologically normal human samples, including 17 adult tissues, 7 fetal tissues and 6 purified primary haematopoietic cells, resulted in identification of proteins encoded by 17,294 genes accounting for approximately 84% of the total annotated protein-coding genes in humans. A unique and comprehensive strategy for proteogenomic analysis enabled us to discover a number of novel protein-coding regions, which includes translated pseudogenes, non-coding RNAs and upstream open reading frames. This large human proteome catalogue (available as an interactive web-based resource at http://www.humanproteomemap.org) will complement available human genome and transcriptome data to accelerate biomedical research in health and disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4403737/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4403737/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Min-Sik -- Pinto, Sneha M -- Getnet, Derese -- Nirujogi, Raja Sekhar -- Manda, Srikanth S -- Chaerkady, Raghothama -- Madugundu, Anil K -- Kelkar, Dhanashree S -- Isserlin, Ruth -- Jain, Shobhit -- Thomas, Joji K -- Muthusamy, Babylakshmi -- Leal-Rojas, Pamela -- Kumar, Praveen -- Sahasrabuddhe, Nandini A -- Balakrishnan, Lavanya -- Advani, Jayshree -- George, Bijesh -- Renuse, Santosh -- Selvan, Lakshmi Dhevi N -- Patil, Arun H -- Nanjappa, Vishalakshi -- Radhakrishnan, Aneesha -- Prasad, Samarjeet -- Subbannayya, Tejaswini -- Raju, Rajesh -- Kumar, Manish -- Sreenivasamurthy, Sreelakshmi K -- Marimuthu, Arivusudar -- Sathe, Gajanan J -- Chavan, Sandip -- Datta, Keshava K -- Subbannayya, Yashwanth -- Sahu, Apeksha -- Yelamanchi, Soujanya D -- Jayaram, Savita -- Rajagopalan, Pavithra -- Sharma, Jyoti -- Murthy, Krishna R -- Syed, Nazia -- Goel, Renu -- Khan, Aafaque A -- Ahmad, Sartaj -- Dey, Gourav -- Mudgal, Keshav -- Chatterjee, Aditi -- Huang, Tai-Chung -- Zhong, Jun -- Wu, Xinyan -- Shaw, Patrick G -- Freed, Donald -- Zahari, Muhammad S -- Mukherjee, Kanchan K -- Shankar, Subramanian -- Mahadevan, Anita -- Lam, Henry -- Mitchell, Christopher J -- Shankar, Susarla Krishna -- Satishchandra, Parthasarathy -- Schroeder, John T -- Sirdeshmukh, Ravi -- Maitra, Anirban -- Leach, Steven D -- Drake, Charles G -- Halushka, Marc K -- Prasad, T S Keshava -- Hruban, Ralph H -- Kerr, Candace L -- Bader, Gary D -- Iacobuzio-Donahue, Christine A -- Gowda, Harsha -- Pandey, Akhilesh -- HHSN268201000032C/HL/NHLBI NIH HHS/ -- HHSN268201000032C/PHS HHS/ -- P41 GM103504/GM/NIGMS NIH HHS/ -- P41GM103504/GM/NIGMS NIH HHS/ -- T32 GM007814/GM/NIGMS NIH HHS/ -- U24 CA160036/CA/NCI NIH HHS/ -- U24CA160036/CA/NCI NIH HHS/ -- U54 GM103520/GM/NIGMS NIH HHS/ -- U54GM103520/GM/NIGMS NIH HHS/ -- England -- Nature. 2014 May 29;509(7502):575-81. doi: 10.1038/nature13302.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA [2] Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA. ; Institute of Bioinformatics, International Tech Park, Bangalore 560066, India. ; 1] McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA [2] Adrienne Helis Malvin Medical Research Foundation, New Orleans, Louisiana 70130, USA. ; The Donnelly Centre, University of Toronto, Toronto, Ontario M5S 3E1, Canada. ; 1] McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA [2] Department of Pathology, Universidad de La Frontera, Center of Genetic and Immunological Studies-Scientific and Technological Bioresource Nucleus, Temuco 4811230, Chile. ; McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA. ; School of Medicine, Imperial College London, South Kensington Campus, London SW7 2AZ, UK. ; Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA. ; Department of Neurosurgery, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India. ; Department of Internal Medicine Armed Forces Medical College, Pune 411040, India. ; 1] Department of Neuropathology, National Institute of Mental Health and Neurosciences, Bangalore 560029, India [2] Human Brain Tissue Repository, Neurobiology Research Centre, National Institute of Mental Health and Neurosciences, Bangalore 560029, India. ; Department of Chemical and Biomolecular Engineering and Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong. ; Department of Neurology, National Institute of Mental Health and Neurosciences, Bangalore 560029, India. ; Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21224, USA. ; 1] The Sol Goldman Pancreatic Cancer Research Center, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA [2] Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA. ; 1] McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA [2] Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA. ; 1] Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA [2] Departments of Immunology and Urology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA. ; The Sol Goldman Pancreatic Cancer Research Center, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA. ; 1] Department of Obstetrics and Gynecology, Johns Hopkins University School of Medicine Baltimore, Maryland 21205, USA [2] Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA. ; 1] The Sol Goldman Pancreatic Cancer Research Center, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA [2] Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA [3] Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA. ; 1] McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA [2] Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA [3] Institute of Bioinformatics, International Tech Park, Bangalore 560066, India [4] Adrienne Helis Malvin Medical Research Foundation, New Orleans, Louisiana 70130, USA [5] The Sol Goldman Pancreatic Cancer Research Center, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA [6] Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA [7] Diana Helis Henry Medical Research Foundation, New Orleans, Louisiana 70130, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24870542" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Cells, Cultured ; Databases, Protein ; Fetus/metabolism ; Fourier Analysis ; Gene Expression Profiling ; Genome, Human/genetics ; Hematopoietic Stem Cells/cytology/metabolism ; Humans ; Internet ; Mass Spectrometry ; Molecular Sequence Annotation ; Open Reading Frames/genetics ; Organ Specificity ; Protein Biosynthesis ; Protein Isoforms/analysis/genetics/metabolism ; Protein Sorting Signals ; Protein Transport ; Proteome/analysis/chemistry/genetics/*metabolism ; *Proteomics ; Pseudogenes/genetics ; RNA, Untranslated/genetics ; Reproducibility of Results ; Untranslated Regions/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2006-06-01
    Print ISSN: 1434-8411
    Electronic ISSN: 1618-0399
    Topics: Electrical Engineering, Measurement and Control Technology
    Published by Elsevier
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  • 5
    Publication Date: 2014-11-01
    Electronic ISSN: 2158-3226
    Topics: Physics
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  • 6
    Publication Date: 2014-07-01
    Description: Author(s): E. Lhotel, S. R. Giblin, M. R. Lees, G. Balakrishnan, L. J. Chang, and Y. Yasui The very nature of the ground state of the pyrochlore compound Yb2Ti2O7 is much debated, because experimental results demonstrate evidence for either a disordered ground state or a long-range ordered ground state. Indeed, the delicate balance of exchange interactions and anisotropy is believed to le... [Phys. Rev. B 89, 224419] Published Mon Jun 30, 2014
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 7
    Publication Date: 2014-09-17
    Description: Single-stranded DNA (ssDNA) at DNA ends is an important regulator of the DNA damage response. Resection, the generation of ssDNA, affects DNA damage checkpoint activation, DNA repair pathway choice, ssDNA-associated mutation and replication fork stability. In eukaryotes, extensive DNA resection requires the nuclease Exo1 and nuclease/helicase pair: Dna2 and Sgs1 BLM . How Exo1 and Dna2-Sgs1 BLM coordinate during resection remains poorly understood. The DNA damage checkpoint clamp (the 9-1-1 complex) has been reported to play an important role in stimulating resection but the exact mechanism remains unclear. Here we show that the human 9-1-1 complex enhances the cleavage of DNA by both DNA2 and EXO1 in vitro , showing that the resection-stimulatory role of the 9-1-1 complex is direct. We also show that in Saccharomyces cerevisiae , the 9-1-1 complex promotes both Dna2-Sgs1 and Exo1-dependent resection in response to uncapped telomeres. Our results suggest that the 9-1-1 complex facilitates resection by recruiting both Dna2-Sgs1 and Exo1 to sites of resection. This activity of the 9-1-1 complex in supporting resection is strongly inhibited by the checkpoint adaptor Rad9 53BP1 . Our results provide important mechanistic insights into how DNA resection is regulated by checkpoint proteins and have implications for genome stability in eukaryotes.
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
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  • 8
    Publication Date: 2013-04-24
    Description: Author(s): G. Balakrishnan, L. Bawden, S. Cavendish, and M. R. Lees We report detailed investigations of the properties of a superconductor obtained by substituting In at the Sn site in the topological crystalline insulator (TCI), SnTe. Transport, magnetization, and heat capacity measurements have been performed on crystals of Sn 0.6 In 0.4 Te, which is shown to be a bu... [Phys. Rev. B 87, 140507] Published Tue Apr 23, 2013
    Keywords: Superfluidity and superconductivity
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 9
    Publication Date: 2012-08-08
    Description: In eukaryotic Okazaki fragment processing, the RNA primer is displaced into a single-stranded flap prior to removal. Evidence suggests that some flaps become long before they are cleaved, and that this cleavage involves the sequential action of two nucleases. Strand displacement characteristics of the polymerase show that a short gap precedes the flap during synthesis. Using biochemical techniques, binding and cleavage assays presented here indicate that when the flap is ~30 nt long the nuclease Dna2 can bind with high affinity to the flap and downstream double strand and begin cleavage. When the polymerase idles or dissociates the Dna2 can reorient for additional contacts with the upstream primer region, allowing the nuclease to remain stably bound as the flap is further shortened. The DNA can then equilibrate to a double flap that can bind Dna2 and flap endonuclease (FEN1) simultaneously. When Dna2 shortens the flap even more, FEN1 can displace the Dna2 and cleave at the flap base to make a nick for ligation.
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
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  • 10
    Publication Date: 2013-12-29
    Description: Plasma Proteome Database (PPD; http://www.plasmaproteomedatabase.org/ ) was initially described in the year 2005 as a part of Human Proteome Organization’s (HUPO’s) pilot initiative on Human Plasma Proteome Project. Since then, improvements in proteomic technologies and increased throughput have led to identification of a large number of novel plasma proteins. To keep up with this increase in data, we have significantly enriched the proteomic information in PPD. This database currently contains information on 10 546 proteins detected in serum/plasma of which 3784 have been reported in two or more studies. The latest version of the database also incorporates mass spectrometry-derived data including experimentally verified proteotypic peptides used for multiple reaction monitoring assays. Other novel features include published plasma/serum concentrations for 1278 proteins along with a separate category of plasma-derived extracellular vesicle proteins. As plasma proteins have become a major thrust in the field of biomarkers, we have enabled a batch-based query designated Plasma Proteome Explorer, which will permit the users in screening a list of proteins or peptides against known plasma proteins to assess novelty of their data set. We believe that PPD will facilitate both clinical and basic research by serving as a comprehensive reference of plasma proteins in humans and accelerate biomarker discovery and translation efforts.
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
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