bluuebunny/crossref_metadata_2025_split huggingface dataset:
Iodinated contrast prior to evaluation for thyrotoxicosis
Authors: Phillips Brian D. , Hennessey James V. 
Published: March 2009

AbstractBACKGROUND:Radioactive iodine is useful in the diagnosis and treatment of patients with newly diagnosed thyrotoxicosis. However, in many patients these tests are not possible to obtain due to recent administration of iodinated contrast for other types of diagnostic studies, most frequently computed tomography (CT) scans.OBJECTIVE:To determine the frequency of iodinated contrast use in hospital inpatients newly diagnosed with thyrotoxicosis and the utility of these studies.DESIGN:Retrospective chart review.SETTING:Academic medical center.INTERVENTION:None.PATIENTS:Inpatients with newly diagnosed thyrotoxicosis who were seen in consultation by the endocrinology service.MEASUREMENTS:The records of inpatient endocrinology consultations (n = 1171) performed by our service over a 4‐year period were reviewed. Records of patients with newly diagnosed thyrotoxicosis were identified and reviewed to determine if iodinated contrast had been recently administered, the types of studies it was used for, and the results of those studies.RESULTS:Forty‐five patients (45%) had been given iodinated contrast within 2 weeks prior to endocrinology evaluation, 43 for CT scanning, and 2 for angiography. Of the patients who underwent CT scanning, 7 (16%) had a finding that potentially changed their inpatient management. Only 1 of these patients required emergent treatment of a condition diagnosed by CT scan before further diagnostic studies could have been performed.CONCLUSIONS:A substantial number of inpatients with thyrotoxicosis receive iodinated contrast prior to endocrinologic evaluation. Acute findings from these studies that change patient management are uncommon. Awareness of this issue may facilitate care of hospitalized patients with thyrotoxicosis. Journal of Hospital Medicine 2009;4:285–288. © 2009 Society of Hospital Medicine.
Atomic force microscopy study of germination and killing of Bacillusatrophaeus spores
Authors: Pinzón‐Arango Paola A. , Scholl Geoffrey , Nagarajan Ramanathan , Mello Charlene M. , Camesano Terri A. 
Published: March 2009

AbstractBacterial spores such as Bacillus atrophaeus are one of the most resistant life forms known and are extremely resistant to chemical and environmental factors in the dormant state. During germination, as bacterial spores progress towards the vegetative state, they become susceptible to anti‐sporal agents. B. atrophaeus spores were exposed to the non‐nutritive germinant dodecylamine (DDA), a cationic surfactant that can also be used as a killing agent, for up to 60 min, or to the nutrient germinant l‐alanine. In kinetic studies, 99% of the spores were killed within 5 min of exposure to DDA. Atomic force microscopy (AFM) can be used as a sensitive tool to assess how the structure of the spore coat changes upon exposure to germinants or killing agents. Changes in cell height and roughness over time of exposure to DDA were examined using AFM. DDA caused the spore height to decrease by >50%, which may have been due to a partial breakdown of the spore coat. Treatment of B. atrophaeus with the nutrient germinant resulted in a decrease in height of spores after 2 h of incubation, from 0.7 ± 0.1 µm to 0.3 ± 0.2 µm. However, treatment with l‐alanine did not change the surface roughness of the spores, indicating that the changes that occur during germination take place underneath the spore coat. We propose that exposure to DDA at high concentrations causes pores to form in the coat layer, killing B. atrophaeus without the need to fully germinate spores. Published 2009 by John Wiley & Sons, Ltd.
Expression of estrogen receptor GPR30 in the rat spinal cord and in autonomic and sensory ganglia
Authors: Dun Siok L. , Brailoiu G. Cristina , Gao Xin , Brailoiu Eugen , Arterburn Jeffrey B. , Prossnitz Eric R. , Oprea Tudor I. , Dun Nae J. 
Published: March 2009

AbstractThe G protein–coupled receptor GPR30 has recently been identified as a nonnuclear estrogen receptor. Reverse transcriptase–polymerase chain reaction revealed expression of GPR30 mRNA in varying quantities in the rat spinal cord, dorsal root ganglia, nodose ganglia, trigeminal ganglia, hippocampus, brain stem, and hypothalamus. Immunohistochemical studies that used a rabbit polyclonal antiserum against the human GPR30 C‐terminus revealed a fine network of GPR30‐immunoreactive (irGPR30) cell processes in the superficial layers of the spinal cord; some of which extended into deeper laminae. A population of neurons in the dorsal horn and ventral horn were irGPR30. Dorsal root, nodose, and trigeminal ganglionic neurons displayed varying intensities of irGPR30. Positively labeled neurons were detected in the major pelvic ganglion, but not in the superior cervical ganglion. A population of chromaffin cells in the adrenal medulla was irGPR30, so were cells of the zona glomerulosa. Double‐labeling the adrenal medulla with GPR30 antiserum and tyrosine hydroxylase antibody or phenylethanolamine‐N‐methyltransferase antiserum revealed that irGPR30 is expressed in the majority of tyrosine hydroxylase–positive chromaffin cells. Last, some of the myenteric ganglion cells were irGPR30. Tissues processed with preimmune serum resulted in no staining. Voltage‐sensitive dye imaging studies showed that the selective GPR30 agonist G‐1 (1, 10, and 100 nM) depolarized cultured spinal neurons in a concentration‐dependent manner. Collectively, our result provides the first evidence that GPR30 is expressed in neurons of the dorsal and ventral horn as well as in sensory and autonomic neurons, and activation of GPR30 by the selective agonist G‐1 depolarizes cultured spinal neurons. © 2009 Wiley‐Liss, Inc.
The spatial pattern of summertime subtropical anticyclones over Asia and Africa: A climatological review
Authors: Zarrin Azar , Ghaemi Hooshang , Azadi Majid , Farajzadeh Manuchehr 
Published: March 2009

AbstractThe National Centers for Environmental Prediction‐National Center for Atmospheric Research (NCEP‐NCAR) monthly mean reanalysis dataset has been used to analyze spatial variations of summertime subtropical anticyclones over the Asia–Africa region. The geopotential height and zonal wind components of 1000, 500, 200, and 100 hPa in a 30‐year period (1971–2000) have been used to determine the spatial and temporal variations of the anticyclone centres, their monthly frequency and latitudinal axis variations during April–October.The results revealed that there is a clear difference in the location of the summer anticyclone centres in lower, middle and upper levels of the troposphere. In the lower levels, the Azores subtropical anticyclone is located at the east of North Atlantic. In the middle levels, the frequencies of anticyclone centre are concentrated over the northwest of Africa, Arabian Peninsula and Iranian Plateau. In the upper troposphere, the geographical location of the anticyclone centres and their frequencies in the summer season exhibit a scattered pattern from south of China up to western Iran at 200 hPa, and a bimodal pattern over the Tibetan and the Iranian Plateaus at 100 hPa. In fact, in the entire study domain, the Iranian Plateau is a preferable location of the middle and upper troposphere anticyclones.The highest observed latitude of the subtropical anticyclone at 100, 200 and 500 hPa levels have been seen over north of Tibetan plateau, a large area from east to west of Asia and Iran during August, July–August and July, respectively. The maximum monthly variation in the latitude of the ridgeline is seen at 500, 200, and 100 hPa from June to July which goes even up to 10 degrees at some longitudes. Copyright © 2009 Royal Meteorological Society
Predominant modes of winter surface wind variability over the Gulf of Alaska
Authors: Wu Bingyi , Johnson Mark 
Published: March 2009

AbstractTwo distinct modes extracted from winter (Dec.–Mar.) monthly mean surface wind variability over the Gulf of Alaska (GOA) and part of the northeast Pacific Ocean have been identified along with their associations with sea surface temperature (SST), coastal downwelling, surface air temperature (SAT) and sea level pressure (SLP). The leading mode of surface wind variability, accounting for 45% of the variance, is characterized by two distinct and alternating modes or their linear combination, and shows strong interannual and interdecadal variations with the transition years in the mid‐1970s and the beginning and late of 1990s. One mode (M1) features a coherent cyclonic or anticyclonic surface wind anomaly in the GOA and part of the northeast Pacific Ocean, and reflects wind field variability related to the intensity of large scale atmosphere‐ocean interactions associated with the Aleutian Low, the Pacific/North American (PNA) pattern, the Pacific decadal oscillation (PDO), and the South Oscillation (SO). This mode significantly influences SAT over the GOA and the entire northeast Pacific and influences downwelling along the eastern and southeastern GOA. It does not significantly influence SST in the northern GOA. The other (M2) characterizes dominant southerly or northerly anomalies, and significantly influences coastal downwelling in the northern and southeastern GOA. It is also correlated with SAT over the GOA, the Bering Sea shelf, and much of Alaska. The impact of M2 on SST is greater than that of M1 in the GOA and the Bering Sea. M1 and M2, respectively, correspond to the PNA pattern and a dipole pattern, and the later is characterized by the third mode of the empirical orthogonal function (EOF) analysis of winter SLP variability over the domain 20° –70°N and 160°E–100°W, accounting for 13% of the variance. The dipole pattern is a new mode of winter atmospheric variability, with opposite anomalous centres over the southern Bering Sea and the west coast of the USA and part of the northeast Pacific Ocean. Copyright © 2009 Royal Meteorological Society
Delayed influence of the Indian Ocean Dipole mode on the East Asia–West Pacific monsoon: possible mechanism
Authors: Kripalani R. H. , Oh J. H. , Chaudhari H. S. 
Published: March 2009

AbstractThis study investigates the possible physical processes for the delayed response of the East Asia–West Pacific summer monsoon to the Indian Ocean Dipole Mode (IODM) through the Eurasian continent based on composite and correlation analyses. The media carrying the memory for this delayed response is identified.Results reveal that the peak positive phase of the dipole during autumn could suppress the following summer monsoon activity over East Asia three seasons later, in particular over the Korea–Japan sector, South China and the adjacent West Pacific region. Composite and correlation analysis suggests that the autumn positive phase of the dipole could induce heavy snow over Eastern Eurasia, north of the Korea–Japan (EENKJ) peninsula, during the following winter and spring seasons. This could increase the temperature gradient conducive to transport cold and dry air from the north towards south over the warmer East Asia–West Pacific domain during the following summer. The sea surface temperature (SST) reveals that the positive phase of the dipole mode during autumn is associated with the warm phase (El Nino) of the El Nino Southern Oscillation (ENSO) over the Pacific. As the seasons progress through to summer, the warm phase over the Pacific transforms to a developing cold phase (La Nina) with warmer SSTs over the West Pacific. Both the anomalous northerly winds due to heavy snow and the anomalous warm SST over the West Pacific due to La Nina displace the North Pacific Subtropical High (NPSH) eastwards, resulting in a weak cross‐equatorial flow and a weak low‐level jet. This could inhibit moisture supply from the Pacific leading to subdued rainfall activity. The footprints of the IODM for delayed response, three seasons later, could be carried by the snow distribution over Eastern Eurasia by the northern route. Furthermore, correlation analysis suggests that the relationships with IODM are slighter stronger than with the ENSO phenomenon. However, partial correlation analysis probably suggests that both the IODM and ENSO work cooperatively for the summer monsoon rainfall anomalies over East Asia–West Pacific region. Copyright © 2009 Royal Meteorological Society
Chronology of late Pleistocene Pampa loess from the Córdoba area in Argentina
Authors: Frechen Manfred , Seifert Britta , Sanabria Jorge A. , Argüello Graciela L. 
Published: March 2009

AbstractIn Argentina, loess/palaeosol sequences were studied from the two sections at Monte Ralo and Corralito, located near to the city of Córdoba in the east of the Pampean ranges. Infrared optically stimulated luminescence (IRSL) and thermoluminescence (TL) dating techniques were applied to set up a more reliable chronological framework for the Upper Pleistocene loess record. IRSL ages increase with depth and are stratigraphically consistent. The oldest loess exposed correlates at least to the penultimate glaciation. The luminescence dating study gives evidence for humid climate conditions with soil formation during the last interglacial period and the middle pleniglacial correlating to Marine Isotope Stage (MIS) 5 and 3, respectively. Three extended periods of soil formation are recorded in the loess/palaeosol sequences at the Corralito section. These buried soils most likely correlate with the last interglacial and early last glacial period. During the Middle Pleniglacial, two palaeosols are intercalated in the loess successions. In the Córdoba area, the periods of increased loess accumulation and deposition of loessic sediments correlate with more arid and glacial periods during the Early Pleniglacial, the Middle Pleniglacial and the Late Glacial. Copyright © 2009 John Wiley & Sons, Ltd.
Spectroscopic and thermal studies on the inclusion of trans‐cinnamic acid and a number of its hydroxyl‐derivatives with α, β and γ‐cyclodextrins molecules
Authors: Nolasco Mariela M. , Amado Ana M. , Ribeiro‐Claro Paulo J. A. 
Published: March 2009

AbstractThe inclusion compounds of α‐, β‐ and γ‐cyclodextrins (α‐CD, β‐CD and γ‐CD) with trans‐cinnamic acid (t‐CIA), 3‐hydroxy‐trans‐cinnamic acid (t‐3OHCIA), 4‐hydroxy‐trans‐cinnamic acid (t‐4OHCIA) and 3,4‐dihydroxy‐trans‐cinnamic acid (t‐3,4OHCIA) were prepared and characterized, in the solid state, by means of thermogravimetry and Raman spectroscopy. The effects of the inclusion process on the guest molecules and on the hydrogen bond interactions of the guest were studied by monitoring sensitive vibrational modes, such as CO, CC and ring CH stretching modes.By combining Raman and TG data with ab initio calculations and information from CSD database on similar compounds, inclusion geometries for the different compounds are proposed. The size of the host cavity and the maximization of host/guest hydrogen‐bonding contacts appear to be the main factors determining the inclusion geometries. Copyright © 2009 John Wiley & Sons, Ltd.
Solvent dependent study of carbonyl vibrations of 3‐phenoxybenzaldehyde and 4‐ethoxybenzaldehyde by Raman spectroscopy and ab initio calculations
Authors: Ramakrishnan Veerabahu , Sarua Andrei , Kuball Martin , Abdullah Anis Fathima 
Published: March 2009

AbstractA Raman spectroscopy investigation of the carbonyl stretching vibrations of 3‐phenoxybenzaldehye (3Phbz) and 4‐ethoxybenzaldeheyde (4Etob) was carried out in binary mixtures with different polar and nonpolar solvents. The purpose of this study was twofold: firstly, to describe the interaction of the carbonyl groups of two solute molecules in terms of a splitting in the isotropic and anisotropic components and secondly, to analyze their spectroscopic signatures in a binary mixture. Changes in wavenumber position, variation in the anisotropic shift and full width half maximum were investigated for binary mixtures with different mole fractions of the reference systems. In binary mixtures, the observed increase in wavenumber with solvent concentration does not show linearity, indicating the significant role of molecular interactions on the occurrence of breaking of the self‐association of the solute. In all the solvents, a gradual decrease in the anisotropic shift reflects the progressive separation of the coupled oscillators with dilution. Γi(ηc), 3Phbz—solvent mixtures, exhibit a gradual decrease with decrease in the concentration of the solute which is an evidence on the influence of micro viscosity on linewidth. For 4Etob, the carbonyl stretching vibration shows two well‐resolved components in the Raman spectra, attributed to the presence of two distinct carbonyl groups: hydrogen‐bonded and free carbonyl groups. The intensity ratio of the carbonyl stretching vibration of these two types of carbonyl groups is studied to understand the dynamics of solute/solvent molecules owing to hydrogen bond interactions. Ab initio calculations were employed for predicting relevant molecular structures in the binary mixtures arising from intermolecular interactions, and are related to the experimental results. Copyright © 2009 John Wiley & Sons, Ltd.
Retracted: A comparative Raman study of graphite, single‐walled, and multi‐walled carbon nanotubes
Authors: Ojha Animesh K. , Materny Arnulf 
Published: March 2009

AbstractRetraction: The following article from Journal of Raman Spectroscopy, ‘A comparative Raman study of graphite, single‐walled, and multi‐walled carbon nanotubes’, by Animesh K. Ojha and Arnulf Materny published online on 3 March 2009 in Wiley InterScience (www.interscience.wiley.com), has been retracted by agreement between the authors, the journal Editor in Chief, Wolfgang Kiefer, and the publisher John Wiley & Sons, Ltd. The retraction has been agreed due to lack of citation or acknowledgement of third party interests in certain data included in the article.
Improvement of rotational CARS thermometry in fuel‐rich hydrocarbon flames by inclusion of N2‐H2 Raman line widths
Authors: Bohlin Alexis , Vestin Fredrik , Joubert Pierre , Bonamy Jeanine , Bengtsson Per‐Erik 
Published: March 2009

AbstractIn rotational coherent anti‐Stokes Raman spectroscopy (CARS) thermometry applied to air‐fed flames, the temperature sensitivity mainly depends on the intensity distribution of the nitrogen spectral lines. Temperatures are estimated by numerical fitting of theoretical spectra to experimental ones, and one uncertainty in the calculation of theoretical CARS spectra for specific flame conditions is the accuracy in utilized line‐broadening coefficients. In a previous article, self‐broadened N2‐N2 line widths were considered in the spectral calculations as well as those of N2‐CO, N2‐CO2, N2‐H2O, and N2‐O2. In the present article, we also include N2‐H2 line widths calculated from a newly developed model, and it is shown that the evaluated temperature from flame spectra increases with increasing mole fractions of hydrogen. For example, in a very rich flame at Φ = 2.5, the use of available line‐width data for all major species gives a temperature raise of 72 K at a temperature of ∼1700 K, in comparison with using self‐broadened N2‐N2 line widths only. Half of this temperature raise is related to the inclusion of N2‐H2 line widths. This article emphasizes the importance of using adequate line‐broadening models for rotational CARS thermometry in flames. Copyright © 2009 John Wiley & Sons, Ltd.
Raman spectroscopic study of the mixed anion sulphate–arsenate mineral parnauite Cu9[(OH)10|SO4|(AsO4)2]·7H2O
Authors: Frost Ray L. , Sejkora Jiří , Čejka Jiří , Keeffe Eloise C. 
Published: March 2009

AbstractThe mixed anion mineral parnauite Cu9[(OH)10|SO4|(AsO4)2]·7H2O has been studied by Raman spectroscopy. Characteristic bands associated with arsenate, sulphate and hydroxyl units are identified. Broad bands are observed and are resolved into component bands. Two intense bands at 859 and 830 cm−1 are assigned to the ν1 (AsO4)3− symmetric stretching and ν3 (AsO4)3− antisymmetric stretching modes. The comparatively sharp band at 976 cm−1 is assigned to the ν1 (SO4)2− symmetric stretching mode and a broad‐spectral profile centered upon 1097 cm−1 is attributed to the ν3 (SO4)2− antisymmetric stretching mode. A comparison of the Raman spectra is made with other arsenate‐bearing minerals such as carminite, clinotyrolite, kankite, tilasite and pharmacosiderite. Copyright © 2009 John Wiley & Sons, Ltd.
Hydrogen bonding in amylose/DMSO complexes studied by vibrational spectroscopy and density functional theory calculations
Authors: Milani Alberto , Aiman Fadel Nur , Brambilla Luigi , Del Zoppo Mirella , Castiglioni Chiara , Zerbi Giuseppe , Stradi Riccardo 
Published: March 2009

AbstractThe intermolecular interactions in amylose/dimethyl sulfoxide (DMSO) complexes are discussed both experimentally and theoretically by means of Raman and infrared spectroscopies.The study is based on a preliminary analysis of well known systems such as pure liquid DMSO or DMSO in mixture with water: for such systems, an analysis of the CS stretching region is carried out both by means of Raman and infrared spectra.In particular, Raman spectra reveal a high sensitivity to the strength and to the type of interaction involving the DMSO molecules.These results, applied to the investigation of amylose‐DMSO complexes, show the presence of different hydrogen‐bonded complexes which coexist in this compound. In particular, DMSO molecules are identified both on the external surface of the V‐amylose helix, where they can interact via one hydrogen bond and in the inner channel of the helix where they can interact via two hydrogen bonds.The present findings open the possibility of applying vibrational spectroscopy to the characterization of inclusion compounds of amylose which are currently being involved in many fields of nanosciences. Copyright © 2009 John Wiley & Sons, Ltd.
First and second‐order Raman scattering of B6O
Authors: Solozhenko Vladimir L. , Kurakevych Oleksandr O. , Bouvier Pierre 
Published: March 2009

AbstractFirst and second‐order Raman spectra of B6O and their dependence on the wavelength of the excitation line from IR (infrared) to deep UV (ultraviolet) has been studied. The first‐order Raman spectra contain 11 well‐resolved lines of the 12 expected modes 5 A1g + 7 Eg (space group R‐3m, point group D3d). The second‐order Raman spectra contains eight lines that are resolved only in the case of the 244‐nm excitation line. Copyright © 2009 John Wiley & Sons, Ltd.
Vibrational spectra and scaled quantum chemical studies of the structure of Martius yellow sodium salt monohydrate
Authors: Snehalatha M. , Ravikumar C. , Joe I. Hubert , Jayakumar V. S. 
Published: March 2009

AbstractThe FT‐IR and Raman spectra of Martius Yellow sodium salt Monohydrate (MYM) [2, 4‐dinitro‐1‐naphthol sodium salt] in solid‐phase have been measured. The geometry, intramolecular hydrogen bonding and harmonic vibrational wavenumbers of MYM have been investigated with the help of B3LYP density functional theory (DFT) methods. The detailed interpretation of the vibrational spectra has been carried out with the aid of normal coordinate analysis (NCA) following the scaled quantum mechanical force field methodology (SQMFF). The existence of intramolecular CH···O improper, blue‐shifted hydrogen bonding was investigated by means of the NBO analysis. The infrared and Raman spectra were predicted theoretically from the calculated intensities. The observed and the calculated spectra were found to be in good agreement. Copyright © 2009 John Wiley & Sons, Ltd.