bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimal domains and integral representations ofLp(G)‐valued convolution operators via measures
Authors: Okada S. , Ricker W. J. 
Published: February 2007

AbstractGiven 1 ≤p< ∞, a compact abelian groupGand a measureμ∈M(G), we investigate the optimal domain of the convolution operator$ C^{(p)}_{\mu} $:f↦f∗︁μ(as an operator fromLp(G) to itself). This is the largest Köthe function space with order continuous norm into whichLp(G) is embedded and to which$ C^{(p)}_{\mu} $has a continuous extension, still with values inLp(G). Of course, the optimal domain depends onpandμ. Whereas$ C^{(p)}_{\mu} $is compact precisely whenμ∈M0(G), this is not always so for the extension of$ C^{(p)}_{\mu} $to its optimal domain (which is always genuinely larger thanLp(G) wheneverμ∈M0(G)). Several characterizations of precisely when the extension is compact are presented. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Smoking and cognitive function in Parkinson's disease
Authors: Weisskopf Marc G. , Grodstein Francine , Ascherio Alberto 
Published: February 2007

AbstractThe risk of dementia among Parkinson's disease (PD) patients is greatly elevated compared to controls, yet little is known about determinants of cognitive function among PD patients. We assessed the relation between cigarette smoking prior to disease onset and later cognitive function among PD patients (n = 286) and age‐ and sex‐matched controls (n = 1144) participating in the Nurses' Health Study and Health Professionals Follow‐up Study. Both groups completed telephone‐administered assessments of cognitive function. We used linear regression to calculate mean differences in cognitive test scores across smoking categories, adjusted for age, education, sex, age at onset of PD, and years since diagnosis. PD patients scored significantly worse on all tests than their matched controls. In analyses only among PD cases, but not among controls, current smokers at PD onset scored worse than never smokers on the Telephone Interview for Cognitive Status (difference = −0.82, 95% CI: −1.33, −0.30, P = 0.002) as well as on a global score combining results of all tests (difference = −0.36, 95% CI: −0.72, 0.01, P = 0.06). This difference was equivalent to the difference in global score observed among controls ∼10 years apart in age. Analyses of pack‐years of smoking prior to disease onset gave similar results. These findings, nested in prospective cohort studies, suggest that cigarette smoking prior to disease onset is associated with worse cognitive function in PD. © 2007 Movement Disorder Society
On the existence and stability of solutions for the micropolar fluids in exterior domains
Authors: Ferreira L. C. F. , Villamizar‐Roa E. J. 
Published: February 2007

AbstractWe prove the existence of a global strong solution in some class of Marcinkiewicz spaces for the micropolar fluid in an exterior domain of R3, with initial conditions being a non‐smooth disturbance of a steady solution. We also analyse the large time behaviour of those solutions and apply our results in the context of the Navier–Stokes equations. Copyright © 2007 John Wiley & Sons, Ltd.
Proteomic analysis of the major soluble components in Annurca apple flesh
Authors: Guarino Carmine , Arena Simona , De Simone Luciana , D'Ambrosio Chiara , Santoro Simona , Rocco Mariapina , Scaloni Andrea , Marra Mauro 
Published: February 2007

AbstractApple is one of the most worldwide‐consumed fruits and a number of cultivars, differing in organoleptic and nutritional characteristics, are available for the market. Annurca apple is a regional variety from Southern Italy, which is known for crispness, excellent taste and long shelf life of fruits. These features have renewed the interest in the investigation of their genetic potential and different studies have lead to their partial genetic and metabolic characterisation. In this study, we present the analysis of the protein repertoire of the pseudocarp tissues of three accessions of Malus x domestica Borkh. cv. Annurca, as first example of the systematic annotation of the apple proteome. Proteins were extracted from fruit tissues and resolved on 2‐DE gels; commonly expressed proteins were in‐gel digested and analysed by MALDI‐TOF‐MS and μLC‐ESI‐IT‐MS/MS approaches. Peptide MS and MS/MS data were searched against publicly available protein and EST databases, and 44 spots were identified and associated to 28 different species. They were related to important physiological processes such as energy production, ripening and stress response. The occurrence of allergens causative of widespread food allergy syndromes was also detected. Integration of genomic, metabolomic and proteomic data will be indispensable for future molecular characterisation and hence full exploitation of the peculiar organoleptic, nutritional and agronomic traits of local cultivars of fruits.
Quality and stability evaluation of disposable medical equipment
Authors: Schumacher Ilana , Tsiperman Evgeny , Tarnopolsky Alexander , Raskin Arthur , Sigler Erwin , Domb Abraham J. 
Published: February 2007

AbstractThe complexity and uniqueness of disposable medical devices (DMDs) requires thorough analytical investigation to ensure their quality and stability upon storage. Infusion sets were studied in this context. Chemical compositions of various parts of these medical devices were analyzed using spectroscopic and chromatographic techniques. Physical properties of the components were tested according to appropriate American Society for Testing and Materials (ASTM) procedures (swelling and leaching test, tensile strength and microhardness). Since degradation of polymers is often accompanied by a color change, the yellowing observed in the chosen items was considered as an indication of degradation. Swelling and microhardness tests indicative of a correlation between the plastics' shelf‐life and their degradation extent.Analyses of extracts of the plastics in different solvents confirmed the presense of a common plasticizer diethylhexylphthalate (DEHP) and two widely used antioxidants butylated hydroxytoluene (BHT) and methylenebis(methyl‐t‐butylphenol) in different parts of the devices. The mentioned compounds were identified by high performance liquid chromatography (HPLC) and gas chromatography and mass spectrometry (GC/MS) techniques. The concentration of these compounds in the extracts may be correlated with aging of the examined parts of the infusion sets.The quality of DMDs may deteriorate due to the field storage conditions. Development of qualititative and quantitative methods for evaluating this deterioration is essential for better quality control of these items. Copyright © 2007 John Wiley & Sons, Ltd.
Entering the Implementation Era A report on the HUPO‐PSI Fall workshop 25–27 September 2006, Washington DC, USA
Authors: Orchard Sandra , Taylor Chris F. , Jones Phil , Montechi‐Palazzo Luisa , Binz Pierre‐Alain , Jones Andrew R. , Pizarro Angel , Julian Randall K. , Hermjakob Henning 
Published: February 2007

AbstractSince its conception in April 2002, the Human Proteome Organisation Proteomics Standards Initiative has contributed to the development of community standards for proteomics in a collaborative and very dynamic manner, resulting in the publication and increasing adoption of a number of interchange formats and controlled vocabularies. Repositories supporting these formats are being established or are already operational. In parallel with this, minimum reporting requirement have been developed and are now maturing to the point where they have been submitted for journal publication after prolonged exposure to community‐input via the PSI website.
The role of distress, neuroticism and time since diagnosis in explaining support behaviors in partners of women with breast cancer: results of a longitudinal analysis
Authors: Hinnen Chris , Hagedoorn Mariët , Sanderman Robbert , Ranchor Adelita V. 
Published: February 2007

AbstractIn this prospective study distress, neuroticism and time since diagnosis were investigated as determinants of spousal support behavior (i.e. protective buffering and active engagement) in a group of 92 partners of women with breast cancer. Distress and neuroticism were assessed at three months after diagnosis while protective buffering and active engagement were assessed at three, nine and 15 months after diagnosis. Results indicate small but significant decreases in protective buffering and active engagement over time. Moreover, initial distress and neuroticism were found to be strongly and positively related to protective buffering at all three measurements. In addition, less distress was associated with more active engagement in especially individuals scoring relatively low on neuroticism, but only at 3 months after diagnosis. Copyright © 2007 John Wiley & Sons, Ltd.
Bradykinin analogs containing the 4‐amino‐2‐benzazepin‐3‐one scaffold at the C‐terminus
Authors: Ballet S. , De Wachter R. , Van Rompaey K. , Tömböly Cs. , Feytens D. , Töth G. , Quartara L. , Cucchi P. , Meini S. , Tourwé D. 
Published: February 2007

AbstractHigh affinity peptide ligands for the bradykinin (BK) B2 subtype receptor have been shown to adopt a β‐turn conformation of the C‐terminal tetrapeptide (H‐Arg1‐Pro2‐Pro3‐Gly4‐Phe5‐Ser6‐Pro7‐Phe8‐Arg9‐OH). We investigated the replacement of the Pro7‐Phe8 dipeptide moiety in BK or the D‐Tic7‐Oic8 subunit in HOE140 (H‐D‐Arg0‐Arg1‐Pro2‐Hyp3‐Gly4‐Thi5‐Ser6‐D‐Tic7‐Oic8‐Arg9‐OH) by 4‐amino‐1,2,4,5‐tetrahydro‐2‐benzazepin‐3‐one templates (Aba). Binding studies to the human B2 receptor showed a correlation between the affinities of the BK analogs and the propensity of the templates to adopt a β‐turn conformation. The L‐spiro‐Aba‐Gly containing HOE140 analog BK10 has the best affinity, which correlates with the known turn‐inducing property of this template. All the compounds did not modify basal inositolphosphate (IP) output in B2‐expressing CHO cells up to 10 µM concentration. The antagonist properties were confirmed by the guinea pig ileum smooth muscle contractility assay. The new amino‐benzazepinone (Aba) substituted BK analogs were found to be surmountable antagonists. Copyright © 2007 European Peptide Society and John Wiley & Sons, Ltd.
A synthetic analog of plantaricin 149 inhibiting food‐borne pathogenic bacteria:evidence for α‐helical conformation involved in bacteria–membrane interaction
Authors: Müller Diana M. , Carrasco Marta S. , Simonetta Arturo C. , Beltramini Leila M. , Tonarelli Georgina G. 
Published: February 2007

AbstractPlantaricin‐149 is a bacteriocin produced by Lactobacillus plantarum NRIC 149 (a LAB isolated from pineapple), which consists of a peptidic chain made up of 22 amino acid residues [Kato et al. J. Ferment. Bioeng. 1994; 77: 277–282]. In this work, a synthetic C‐terminal amidated peptide analog denoted Pln149a was prepared by SPPS‐Fmoc chemistry and the antagonistic activity against gram‐positive and gram‐negative bacteria was tested. The secondary structure was studied by circular dichroism (CD) and the vicinity of the tyrosine residue by fluorescence spectroscopy under different conditions. We report the results of the interaction of Pln149a with reverse micelles prepared from the amphiphilic AOT in cyclohexane.Synthetic plantaricin was active against one strain of Staphylococcus aureus and four strains of Listeria genus at pH 5.5 and 7.4 and, like its natural variant, inhibited L. plantarum ATCC 8014.The data derived from spectroscopic measurements in presence of AOT reverse micelles suggest that the secondary structure of the peptide upon interaction is an α‐helix. In this membrane model, the hydrophobic side of the α‐helix is inserted into the micelles, leaving the lysines exposed to the solvent and interacting with the polar moieties of AOT. The fluorescence data point out that the N‐terminal tyrosine residue is close to the micellar interface. Copyright © 2007 European Peptide Society and John Wiley & Sons, Ltd.
The [Tc(N)(PNP)]2+ metal fragment labeled cholecystokinin‐8 (CCK8) peptide for CCK‐2 receptors imaging: in vitro and in vivo studies
Authors: Agostini Stefania , Bolzati Cristina , Didonè Eliana , Cavazza‐Ceccato Mario , Refosco Fiorenzo , Aloj Luigi , Arra Claudio , Aurilio Michela , Tornesello Anna Lucia , Tesauro Diego , Morelli Giancarlo 
Published: February 2007

AbstractThe radiolabeling of the natural octapeptide CCK8, derivatized with a cysteine residue (Cys‐Gly‐CCK8), by using the metal fragment [99mTc(N)(PNP3)]2+ (PNP3 = N,N‐bis(dimethoxypropylphosphinoethyl)methoxyethylamine) is reported. The [99mTc(N)(NS‐Cys‐Gly‐CCK8)(PNP3)]+ complex was obtained according to two methods (one‐step or two‐step procedure) that gave the desired compound in high yield. The complex is stable in aqueous solution and in phosphate buffer. In vitro challenge experiments with an excess of cysteine and glutathione indicate that no transchelation reactions occur, confirming the high thermodynamic stability and kinetic inertness of this compound. Stability studies carried out in human and mouse serum, as well as in mouse liver homogenates, show that the radiolabeled compound remains intact for prolonged incubation at 37 °C. Binding properties give Kd (19.0 ± 4.6 nmol/l) and Bmax (∼106 sites/cell) values in A431 cells overexpressing the CCK2‐R. In vivo evaluation of the compound shows rapid and specific targeting to CCK2‐R, a fourfold higher accumulation compared to nonreceptor expressing tumors. Copyright © 2007 European Peptide Society and John Wiley & Sons, Ltd.
Probing by transport the single‐particle energy spectrum up to high energy of one quantum dot with the ground state of an adjacent weakly coupled quantum dot
Authors: Austing D. G. , Yu G. , Payette C. , Gupta J. A. , Korkusinski M. , Aers G. C. 
Published: February 2007

AbstractWe investigate single‐electron resonant tunneling through gated vertical quantum dot molecules for which the tunnel coupling between the two dots is weak to examine magnetic field induced two‐ and three‐level crossings in the single‐particle energy spectrum of the constituent dots. We consider two devices. Device I with almost circular dots is close to ideal, i.e., the dot spectrum is like the Fock–Darwin spectrum with expected level crossings. Device II with elliptically deformed dots seems close to ideal too, i.e., the dot spectrum is overall like the elliptical parabolic dot spectrum, except at many of the level crossings, where unexpected anti‐crossing behavior is observed between two or more approaching levels. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Differential electroabsorption studies of semiconductors and semiconductor heterostructures
Authors: Weiser Gerhard 
Published: February 2007

AbstractElectroabsorption spectra of high mobility semiconductors and quantum wells are presented and compared with non‐perturbative theoretical models. Since even moderate fields mix eigenstates in these materials very strongly a differential technique is applied, where a dc voltage defines the field in the sample which then is altered by a small modulation voltage. The response to that modulation is generated from the most sensitive part of an electronic state, the envelope function, which facilitates the analysis of the spectral lineshape. The difference of the response of delocalized electrons in bulk semiconductors and spatially confined electrons will be elucidated, including the intermediate case of 0.1 µm‐thick single crystals and field‐localisation of electrons in a superlattice. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Photoreflectance spectroscopy with nanometer spatial resolution under lateral current flow conditions in selectively doped heterostructures
Authors: Lonskaya E. , Ryabushkin O. 
Published: February 2007

AbstractThe simultaneous measurements of the photoreflectance spectra and I –V characteristics in GaAs/AlGaAs HEMT‐like structures allowed to determine the built‐in electric fields and a spatial dependence of the current density in direction transverse to heterostructure layers with nanometer spatial resolution. The variations of a spatial distribution of the current density with the lateral current were also investigated. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Photoluminescence and modulation spectroscopy study of the effects of growth interruptions on the interfaces of GaAsSb/GaAs multiple quantum wells
Authors: Hsu H. P. , Sitarek P. , Huang Y. S. , Liu P. W. , Lin J. M. , Lin H. H. , Tiong K. K. 
Published: February 2007

AbstractTemperature dependent photoluminescence (PL), room temperature phototransmittance (PT), contactless electroreflectance (CER) and wavelength modulated surface photovoltage spectroscopy (WMSPS) measurements are utilized to study the effects of growth interruption times, combined with Sb exposure of GaAsSb/GaAs multiple quantum wells (MQWs) structures. The PL spectra show peak location red‐shifted, luminescence intensity increased and full width at half maximum narrowed with increasing interruption time. The features originated from different regions of the samples including interband transitions of MQWs, interfaces and GaAs are observed and identified through a detailed comparison of the obtained spectra and theoretical calculation. The anomalous temperature dependence of PL spectra has been attributed to the carrier localization effect resulted from the presence of Sb clusters and/or fluctuations in Sb composition at the QW interfaces. An additional feature has also been observed below the GaAs region in Sb exposure treated samples and the probable origin of this feature has been discussed. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Evaluation of the growth inhibitory activities of triphala against common bacterial isolates from HIV infected patients
Authors: Srikumar R. , Parthasarathy N. Jeya , Shankar E. M. , Manikandan S. , Vijayakumar R. , Thangaraj R. , Vijayananth K. , Sheeladevi R. , Rao Usha Anand 
Published: February 2007

AbstractThe isolation of microbial agents less susceptible to regular antibiotics and the rising trend in the recovery rates of resistant bacteria highlights the need for newer alternative principles. Triphala has been used in traditional medicine practice against certain diseases such as jaundice, fever, cough, eye diseases etc. In the present study phytochemical (phenolic, flavonoid and carotenoid) and antibacterial activities of aqueous and ethanol extracts of Triphala and its individual components (Terminalia chebula, Terminalia belerica and Emblica officinalis) were tested against certain bacterial isolates (Pseudomonas aeruginosa, Klebsiella pneumoniae, Shigella sonnei, S. flexneri, Staphylococcus aureus, Vibrio cholerae, Salmonella paratyphi‐B, Escherichia coli, Enterococcus faecalis, Salmonella typhi) obtained from HIV infected patients using Kirby‐Bauer's disk diffusion and minimum inhibitory concentration (MIC) methods. T. chebula was found to possess high phytochemical content followed by T. belerica and E. officinalis in both aqueous and ethanol extracts. Further, most of the bacterial isolates were inhibited by the ethanol and aqueous extracts of T. chebula followed by T. belerica and E. officinalis by both disk diffusion and MIC methods. The present study revealed that both individual and combined aqueous and ethanol extracts of Triphala have antibacterial activity against the bacterial isolates tested. Copyright © 2007 John Wiley & Sons, Ltd.
Temperature trend in lancashire, 175–1945
Authors: Manley Gordon 
Published: February 2007

AbstractA table of monthly mean temperatures for the Lancashire plain from 1753 to the present day has been compiled by reduction from a large number of little‐known early observations. It is believed that from 1781 onward the values are likely to be fairly reliable. The general trend of mean temperature for each month agrees remarkably well with that shown to have occurred since about 1800 in Scandinavia.
Air motion ahead of warm fronts
Authors: Miles M. K. 
Published: February 2007

AbstractThe ageostrophic component of the wind at 900 millibars in the cold air ahead of warm fronts has been found for sixty occasions between 1943 and 1949. The values show much variability both of magnitude and angular deviation from the isobars. It is found that this variability is not closely related to any of the following characteristics of the situation:—(i) The curvature of the isobars in the cold air.(ii) The isallobaric gradient ahead of the front.(iii) The pressure tendency at the place where the ageostrophic component is found.(iv) The refraction of the isobars at the front.(v) The temperature difference between the two air masses.(vi) The geostrophic wind at this place.For forty‐four of the cases the vector change of geostrophic wind along the trajectory over the preceding six hours has been obtained and it is found that there is a correlation coefficient of 0.88 between this quantity and the magnitude of the ageostrophic component.The line of best fit is |4|=0.78J′–1.0 where |A| and J′ are the magnitudes of the ageostrophic vector and the vector change of the geostrophic wind respectively, both being in mi/hr.It is shown that this value of |A|/J′ could arise with quasi‐geostrophic motion but the observed direction of A is inconsistent with such motion.Finally, predictions made from the equations of motion in an exponentially growing pressure gradient without the quasi‐geostrophic assumption are shown to be in close agreement with the observations.
Natural removal of pollution from the atmosphere
Authors: Meetham A. R. 
Published: February 2007

AbstractObservations of atmospheric pollution throughout Britain are considered in relation to the amounts of pollution emitted through the combustion of coal. The estimated weight of ash emitted into the air and the estimate, from deposit gauges, of the ash deposited, are considered likely to agree fairly well at a figure of rather over one million tons per annum (one million tonnes/yr).On the assumption that about 1.5 million tons of smoke are blown to sea each year, it is shown that about 1.1 million tons of sulphur dioxide are blown to sea each year; the remaining 0.8 million tons of smoke and 3.9 million tons of sulphur dioxide must be deposited in Britain, irrespective of the quantities measured in deposit gauges.The average life of a smoke particle before deposition on land is probably of the order of 1–2 days; that of a molecule of sulphur dioxide is estimated with rather more certainty to be less than 12 hours.Of the chlorides collected in deposit gauges more than half, as a rule, come from the sea, and less than half from the utilization of coal; but the ratio must vary with the position of the deposit gauge relative to the sea and to industries.