Kinetics of Acid-catalysed Hydrolysis of Hexanohydroxamic Acid

1086-108

Capturing an Evolving Nebular Environment: A Petrographic and Geochemical Study of a Type A, B & C CAI

Calcium, Aluminum-rich Inclusions (CAIs) were the first formed solids in our Solar System, with mineral assemblages reflecting the first phases predicted to condense out of a hot nebular gas of Solar composition. Geochemical, textural and crystallographic information in CAIs can be used to constrain the temperature, pressure, and composition (e.g., oxygen fugacity) of the gaseous reservoir(s) from which they formed, as well as any secondary (nebular and parent body) processes they underwent. Coordinated geochemical and textural analyses provide information on nebular conditions (i.e., astrophysical environments and dynamics of nebular gas reservoirs) in which these CAIs formed. In order to better understand the evolution of nebular reservoirs at the time of CAI formation, we analyzed a Type A, B and C CAI using Electron Probe Micro-Analyzer (EPMA) and Electron BackScatter Diffraction (EBSD) at NASA Johnson Space Center (JSC)

Clostridium difficile in Antibiotic-Associated Diarrhoea and Detection of Toxin Producing Strains in a Tertiary Care Hospital in Western Maharashtra

Background: Rampant and injudicious use of broad spectrum antibiotic in hospitalized patients has increased the incidence of Clostridium difficile Associated Diarrhea (CDAD). In recent years, Clostridium difficile Infection (CDI) has become more frequent, severe, and difficult to treat. Aim and Objective: A prospective, study was conducted to isolate C. difficile in Antibiotic-associated Diarrhoea (AAD) and to detect toxin producing strains of C. difficile from faecal samples of patients suspected to have CDI. Material and Methods: A total of 111 hospitalized patients who developed diarrhoea after >72 hours of admission and suspected of CDI were enrolled for investigation. The samples were subjected to anaerobic culture and toxin assay. Results: The total sample size of the study was 111 patients who were having antibiotic associated diarrhoea. Majority of the patients were from the age group 21-30 years and 41-50 years i.e., 23 (20.7%). Males 64 (57.7%) were affected more as compared to females 47 (42.3%). Third generation cephalosporins were the most common group of antibiotics associated with both AAD 36 (32.4%) and CDAD 9 (42.85%) cases, followed by carbapenem fluroquinolones in combination 3 (12.5%). Culture positivity was seen in 12 (10.81%) of the 111 stool samples and 39 (35.13%) were toxin producers. Conclusion: The use of several medications was found to be associated with an increased risk of CDAD. The only way to reduce Cl. difficile infection is to judiciously use antibiotics, strictly adhere to antibiotic policy and to give prime importance to strict infection control measures

Snake Bite Complicated By Bacterial Meningitis

Background: Neurotoxic snake bite envenomation is a common life threatening medical emergency in India, especially in the rural areas. Case Presentation: We report a case of a neurotoxic snake envenomation presenting with abdominal pain and neuromuscular paralysis, which developed bacterial meningitis during her stay in the hospital. Possibly, secondary to the snake bite, a very rare incidence. Conclusion: Our case is a step towards the direction pointing to the rare possibility of bacterial meningitis complicating snake bites which needs further research

Nuclear spins, magnetic moments and quadrupole moments of Cu isotopes from N = 28 to N = 46: probes for core polarization effects

Measurements of the ground-state nuclear spins, magnetic and quadrupole moments of the copper isotopes from 61Cu up to 75Cu are reported. The experiments were performed at the ISOLDE facility, using the technique of collinear laser spectroscopy. The trend in the magnetic moments between the N=28 and N=50 shell closures is reasonably reproduced by large-scale shell-model calculations starting from a 56Ni core. The quadrupole moments reveal a strong polarization of the underlying Ni core when the neutron shell is opened, which is however strongly reduced at N=40 due to the parity change between the $pf$ and $g$ orbits. No enhanced core polarization is seen beyond N=40. Deviations between measured and calculated moments are attributed to the softness of the 56Ni core and weakening of the Z=28 and N=28 shell gaps.Comment: 13 pagers, 19 figures, accepted by Physical Review

Synthesis of 1,2-dimethyl-6-(2' -hydroxyisopropyl)-7 -methoxynaphthalene, an isomer of emmotin-G methyl ether

857-86

New Constraints on Dispersive Form Factor Parameterizations from the Timelike Region

We generalize a recent model-independent form factor parameterization derived from rigorous dispersion relations to include constraints from data in the timelike region. These constraints dictate the convergence properties of the parameterization and appear as sum rules on the parameters. We further develop a new parameterization that takes into account finiteness and asymptotic conditions on the form factor, and use it to fit to the elastic \pi electromagnetic form factor. We find that the existing world sample of timelike data gives only loose bounds on the form factor in the spacelike region, but explain how the acquisition of additional timelike data or fits to other form factors are expected to give much better results. The same parameterization is seen to fit spacelike data extremely well.Comment: 24 pages, latex (revtex), 3 eps figure

Towards a sustainable re-construction method for seismic-prone heritage settlements of Gujarat, India based on advanced recording technologies

Post-earthquake reconstruction of housing in heritage settlements confronts challenges such as inadequate damage assessment and replacement, displaced population and loss of heritage significance. Recording the built fabric and ways of life within heritage settlements are key for conserving their historic value, which is increasingly possible with the evolution of digital technologies. This paper presents an ongoing research project developing a novel methodology for heritage conservation and post-disaster reconstruction using state-of-the-art 3D-laser-scanning (LiDAR) technologies to enable comprehensive damage assessment and design of solutions for repair, retrofitting, reuse and disaster risk mitigation, facilitating community empowerment, while virtually preserving the living heritage of vernacular settlements in Kutch, Gujarat. Through the development of a scalable method of reconstruction , the aim is to break the unsustainable cycle of buildings' replacement, dereliction and subsequent loss of heritage, advancing from previous research in Chile. Key aspects of vernacular architecture in Kutch are presented alongside the critical evaluation of previous experiences of post-earthquake reconstruction in the region, introducing the challenges from the LiDAR data capture done so far. The early findings show the potential of the record as fast and accurate documentation of complex living settings, incorporating the technical information required of each house within the contextual information of its surroundings-even when working remotely-where complementary social, archival and historical information can be placed and analysed