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Changes in the concentration of amino acids in serum and cerebrospinal fluid of patients with Parkinson's disease
The concentrations of sixteen amino acids have been measured in the serum and cerebrospinal fluid (CSF) of patients with Parkinson's disease and compared with those of control subjects. The levels of most amino acids were not different between the two groups, but the level of glutamate in CSF was decreased significantly, while the level of glutamine was increased. The results may be consistent with an alteration of glutamate neurotransmission in Parkinson's disease.
Dasatinib-Induced T-Cell-Mediated Colitis: A Case Report and Review of the Literature
Dasatinib is a potent inhibitor of the altered tyrosine kinase activity in disease states associated with BCR/ABL1. This agent has been shown to exhibit broad off-target kinase inhibition and immunomo
Hydrogen solubility in uranium intermetallic compounds with Fe2P type structure
Hydrogen absorption properties of UMAl (M = Ni, Co) intermetallic compounds with a Fe2P type structure were examined in the temperature range from 298 K to 523 K and at the hydrogen pressures up to about 2 MPa by using a modified Sieverts apparatus. UNiAl had great capacities for hydrogen absorption per formula unit, but UCoAl didn't have. The crystal structures and lattice parameters of the compounds were examined by X-ray diffraction analysis. In UNiAl-H system, there exists α (dilute solid solution), β (UNiAlH hydride), and γ (UNiAlH2 hydride) phases. The standard enthalpy changes of formation of the hydrides were estimated from the equilibrium pressure-composition isotherms.
H/sub /spl infin// speed control of an induction motor with the two-mass resonant system by LMI
In the industrial motor drive system, a shaft torsional vibration is often generated when a motor and a load are connected with a flexible shaft. This paper treats the vibration suppression control of such a system. In this paper, a control system design method using Linear Matrix Inequality (LMI), which is a tool for control design that replaces or complements Lyapunov-Riccati equations, is provided and the Hm speed controller for an induction motor by LMI is proposed. In the Hm speed controller, weights are used to satisfy tracking and disturbance rejection. Experimental results show the validity of the proposed Hm speed controller by LMI, and this controller is compared with the state feedback controller.
Cloning and Construction of Human Hepatitis B Virus PreS1/S2/S Gene
Objective To construct recombinant plasmid encoding preS1/S2/S antigen of HBV and to investigate the effect of preS1/S2/S antigen on the mitogen activated protein kinase (MAPK) p38 signaling pathway. Methods The specific primers were designed and synthesized to amplify the DNA fragments encoding preS1/S2/S antigen gene from plasmid pHBV adr by PCR. After being digested with restriction endonuclease, Hind III and BamHI, and purification, the purified preS1/S2/S gene fragments were inserted into pcDNA3.1, and transformed into E.coli DH5α. Then the recombinant plasmid were identified by digesting with restriction endonuclease and DNA sequencing. Results The fragments digested with endonuclease were as large as the predicted results while its DNA sequencing was the same with the reported sequence. Conclusion The recombinant plasmid pcDNA3.1 S1/S2/S was successfully constructed.
Multicanonical evaluation of joint probability density functions in communication system modeling
Previously, we have adapted multicanonical sampling to the evaluation of general probability distribution functions (pdfs) such as those appearing in communication system modeling. This letter demonstrates that joint pdfs can be computed in an identical manner. To illustrate, we determine the joint distribution function between the first- and second-order polarization-mode dispersion in an optical fiber.
[Complication of keratoprosthesis of posterior fixation: retroprosthetic membranes. Apropos of 4 cases].
Keratoprosthesis represents the last solution for patients with bilateral corneal blindness or for monophthalm patients who cannot benefit from corneal grafts. Complications related to this technique are recalled together with an in-depth analysis of the problem of retroprosthesis membranes. The frequency of retroprosthesis membranes varies depending on the series reported, although it appears to be a more agreement on treatment and causes. Among 8 patients who underwent a KPF operation using the E. Lacombes technique, 50% of the cases had retroprosthesis membranes with an unusual thickness, vascularization and recurrent character. Emphasis was placed on early and intense intraocular inflammation.
A cohesive element approach for viscoelastic interface properties
This paper introduces a time dependent extension of the nonlinear traction separation law for an interface element. The constitutive equations of the load history dependent behaviour of the material are depicted and derived according to a generalized Maxwell-model. This finite linear, viscoelastic approach allows the consideration of long term loading and time dependent material behaviour in thin layers. The implementation of the presented element formulation and the material approach are verified by numerical examples. The paper gives an outlook on further work and research topics. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Building coalitions: lessons from the Alliance for a Healthy New England.
Official pronouncements that the U.S. economy is in recession have confirmed the bad news that health care advocates began experiencing months ago. State budgets are deep in deficit. Medicaid programs are in jeopardy. And making the case for expanded health care access now seems harder than ever. There is good news, though: in the Alliance for a Healthy New England, health advocates may have found a new funding mechanism. Built on a broad-based coalition model, the Alliance is seeking to raise tobacco taxes in all six New England states, with the revenue generated to be used for tobacco control and expanded health care access. This States of Health looks at how the diverse organizations that make up the Alliance are learning to work together--and why working together is so valuable.
An Effective Hybrid ADP-PSO Strategy for Optimization and Its Application to Face Recognition
In order to distinguish faces of various angles during face recognition, an algorithm of the combination of approximate dynamic programming (ADP) which is called action dependent heuristic dynamic programming (ADHDP) and particle swarm optimization (PSO) is presented and used, that is to say, ADP is applied for dynamically changing the values of the PSO parameters. During the process of face recognition, the discrete cosine transformation (DCT) is first introduced to reduce negative effects. Then K-L transformation can be used to compress images and decrease data dimensions. According to principal component analysis (PCA), main parts of vectors are extracted for data representation. Finally, radial basis function (RBF) neural network is enrolled to recognize various faces. The training of RBF neural network is exploited by ADP-PSO. In terms of ORL face database, the experimental result gives a clear view of its highly accurate efficiency.
Effect of gold deposition onto titanium on the adsorption of alkanethiols as the protein linker functionalizing the metal surface
A new method to enhance the biofunctionalization of Ti materials was developed by the immersion of Au-sputtered titanium plates into a solution of alkanethiol with a carboxy group end (HS-C11-COOH). X-ray photoelectron spectroscopy (XPS) analysis showed that the gold content increased with the Au sputtering time and reached over 98 at% after 100 s. The content of the characteristic alkanethiol elements (S, C, and O) in the immersed Ti specimens increased with the Au sputtering time, which indicates that the binding of alkanethiol molecules is enhanced by the Au modification on the Ti surface. Qualitative analysis of XPS (Au-S, COO(-), and OH(-) species) and FTIR spectra (peaks assignable to an aliphatic carboxylic acid) for the sample after immersion also supported this. A strong positive correlation between the S and Au content confirms that Au sputtering is an effective method to control the alkanethiol treatment of Ti substrates.
Hydrocortisone as a Modulator of Cell Division and Population Life Span
Previous work in our laboratory on acid phosphatase and β glucuronidase activities in crude homogenates of human diploid cell cultures showed an increase in the specific activity of these enzymes during cellular aging (1). Since these enzymes are typically marker enzymes for lysosomes, the findings implied that older cells contained more lysosomes, a conclusion that has since been documented by electron microscopic studies in our lab and by others (2–4).
Some Studies in the System CaSO4-H2O
The system CaSO4-H2O is discussed particularly in relation to the controversial hemihydrate forms and their physico-chemical as well as technological properties. Dehydration studies of gypsum in a suitably designed rotary kiln under different conditions were conducted and the dehydrated products, as characterised by the crystal structure of hemihydrate have been reported. The role of partial pressure of water vapour on the technological properties of dehydrated products has been elucidated.
On scientific methods for construction management
Aiming at the large number of the construction enterprises in China and their intermingled construction management,the paper,from the four importance aspects of the construction management,points out some effective methods for improving the competition of construction enterprises,so as to maximize the construction enterprises' interests.
Objectivity In The Assessment Of Preschool Hearing Impaired Bilingual‐Hispanic Children
Public Law 94–142, Education of Handicapped Children, mandates the development of an Individualized Education Plan for school-age children with special needs. The development of such a plan requires a team meeting of various specialists who have conducted a variety of assessments of the children being “cored”. Often such meetings become an arena for the enunciation of favored philosophical and methodological positions that tend to obstruct the development of scientifically-based goals and objectives. ::: ::: ::: ::: This article stresses the importance of avoiding one's favored philosophy in the evaluation and assessment of preschool hearing impaired Hispanic bilingual children. A case illustration is presented to demonstrate the need for objectivity in the team evaluation process. Finally, some guidelines are presented for use in working with Hispanic families.
Sustainable Forest Management and Carbon in Tropical Latin America: The Case for REDD+
In this review paper, we assess the economical, governance, and technical conditions that shape forest management in tropical Latin America with particular regard to efforts to reduce forest-based carbon emissions. We provide a framework for discussions about ways to improve forest management that achieve environmental objectives while promoting local and national development and contributing to local livelihoods. We argue that many management practices that lead towards sustainability are only likely to be adopted where there is good governance backed by financial incentives for effective enforcement of management regulations. We propose some policy interventions designed to lower net greenhouse gas emissions by decreasing rates of forest degradation and increasing carbon stock recovery in logged-over or otherwise degraded forests. Implementation of REDD+ could provide critical compensation to forest users for improved management practices in the absence of, or in combination with other economic incentives.
Improved product identification method using CNN for mixed-reality web shopping system
E-commerce (EC) sites have become quite popular for online shopping. However, a user of an EC site must possess certain skills to search for his/her desired product from the numerous web pages. A mixed-reality web-shopping system with panoramic views mitigates this problem. The users of this system can shop in the same manner as they do in a real shop, by viewing the panoramic photographs taken inside the shop. However, one problem with this system is the detection of a product selected in the panoramic view by the user. Although we proposed a product identification system using convolutional neural networks (CNN), its performance was not satisfactory. In this research, we propose a method to improve the recognition rate of the CNN.
Direct and indirect roles of Fgf3 and Fgf10 in innervation and vascularisation of the vertebrate hypothalamic neurohypophysis
The neurohypophysis is a crucial component of the hypothalamo-pituitary axis, serving as the site of release of hypothalamic neurohormones into a plexus of hypophyseal capillaries. The growth of hypothalamic axons and capillaries to the forming neurohypophysis in embryogenesis is therefore crucial to future adult homeostasis. Using ex vivo analyses in chick and in vivo analyses in mutant and transgenic zebrafish, we show that Fgf10 and Fgf3 secreted from the forming neurohypophysis exert direct guidance effects on hypothalamic neurosecretory axons. Simultaneously, they promote hypophyseal vascularisation, exerting early direct effects on endothelial cells that are subsequently complemented by indirect effects. Together, our studies suggest a model for the integrated neurohemal wiring of the hypothalamo-neurohypophyseal axis.
SS-OCT and FD-OCT System Prototyping Using LabVIEW FPGA
Optical coherence tomography (OCT) techniques have opened up a number of new medical imaging applications in research and clinical applications. Key application areas include cancer research, vascular applications such as imaging arterial plaque, and ophthalmology applications such as pre and post-operative cataract surgery imaging. Emerging Technologies in galvo control, light sources, detector technologies, and parallel hardware-based processing are increasing the quality and performance of images, as well as reducing the cost and footprint of OCT systems. The parallel computing capabilities of field programmable gate arrays (FPGAs), multi-core processors, and graphics processing units (GPUs) have enabled real-time OCT image processing, which provides real-time image data to support surgical procedures.Copyright © 2011 by ASME
Heterogeneity of microsomal membrane fluidity: evaluation using intrinsic tryptophan energy transfer to pyrene probes.
Membrane fluidity measurements based on excimer formation of pyrene and pyrene derivatives as a measure of lateral diffusion yield a decreased fluidity in the presence of proteins [1-3]. It was the aim of our study to investigate whether the reduced excimer formation is due to a rigidifying effect of proteins on the whole membrane or if the fluorophore mobility is mainly hindered in the immediate protein environment. Resonance energy transfer in microsomal membranes between intrinsic tryptophan residues and pyrene were used to study the excimer formation rate in the vicinity of proteins. The excimer-to-monomer fluorescence ratio at excitation via resonance energy transfer is lower than that observed for the direct excitation. The results suggest that, because of a reduced fluidity in the neighbourhood of proteins, pyrene and pyrene fatty acids do not diffuse homogeneously in the membrane plane. A fluidity gradient exists from the membrane proteins to the bulk lipid.
The use of dARTMAP and fuzzy ARTMAP to solve the quality testing task in semiconductor industry
Research into the application of distributed ARTMAP (dARTMAP) and fuzzy ARTMAP neural networks to quality testing is presented. The aim of this work is the classification of faulty wafers into one of 22 known classes based on topological information extracted from the geometric allocation of the defective chips on the wafer. The classification abilities of dARTMAP and fuzzy ARTMAP were investigated in comparison with the results for counterpropagation networks (CPN). Experimental results show that ART algorithms can be successfully applied to solve this problem. Both of the ART networks classify significantly better than CPN networks.
Birth weight-specific rates as a bias in the effects of smoking and other perinatal hazards.
Perinatal mortality was examined in the Ontario Perinatal Mortality Study (1960 to 1961) subset of 31,788 births and perinatal deaths among English-speaking Canadian-born women. Overall perinatal mortality rose from 22.0 to 28.2 per 1000 if the mother smoked, a 27% increase. When perinatal mortality was computed in birth weight-specific groups (less than 2500 g and 2500 g or more), the rates for smokers were lower than those for nonsmokers in both subgroups. These results occurred because maternal smoking had an even stronger effect on birth weight than on perinatal mortality, increasing the proportion of births of infants weighing less than 2500 g by 106%. These data confirm the hazard of maternal smoking for the unborn, and pinpoint how some studies that have seemingly inconsistent results have erred in analysis.
Application of EXCEL in Statistic of Materials and Components of Sewage Well
In allusion to the engineering with complex structure and disciplinary change,when the specifications of materials and components are various,using a simple computer programming software can provide detailed accurate data like the total amount of materials and components.It has great practicability.
2-(Arylpropionylamino)- and 2-(arylacryloylamino)benzophenones: Farnesyltransferase inhibition and antimalarial activity
Structural variation of the 2-acylamino moiety of some benzophenone famesyltransferase inhibitors led to the para-trifluoromethylphenylpropionyl derivative with relatively low farnesyltransferase inhibition but considerable antimalarial activity and no cytotoxicity.
Modernizing the State Apparatus
This article examines possible next steps in administrative and civil service reform in Russia, in terms of both the lessons of reforms introduced earlier in this decade and the need for institutional development to underpin the design and implementation of a modernization strategy to guide Russia's socio-economic development.
Alveolar Capillary Dysplasia with Misalignment of Pulmonary Veins (ACD/MPV): A Case Series
Alveolar capillary dysplasia with misalignment of pulmonary veins (ACD/MPV) is a rare, fatal, developmental lung disorder, which usually presents as persistent pulmonary hypertension of the newborn (PPHN) unresponsive to treatment. The authors present their own experience with three cases admitted during the last 15 years.
Acute forearm compartment syndrome associated with HIV-induced thrombocytopenia.
Acute compartment syndrome is most commonly associated with an upper extremity fracture; however, nontraumatic cases of acute forearm compartment syndrome associated with hemophilia’-’ and leukemic infiltrate@ have been documented. We describe a case of acute compartment syndrome following relatively minor trauma in a patient with human immunodeficiency virus (HIV)-associated thrombocytopenia.
Exploration on application of eco-technology in waterway regulation project at midstream of Yangtze River
According to the contradiction of the waterway regulation and river ecology,considering the natural conditions such as surrounding environment,riverbed configuration,sedimentation,flow,water depth and climate etc.,and the ship form and density,the ecological concept is introduced in waterway regulation from the aspect of suitability,durability,economical efficiency,aesthetic property and maintenance management.Through the combination of engineering and biological control measures,the methods of self-recovery and artificial supplementary are adopted and the material and techniques that meet the requirement of environment protection are selected.The application of the above techniques in waterway regulation at midstream of Yangtze River is described,which can provide reference for the study and application of similar ecological techniques in waterway regulation.
The Features of the Present Corru Ption and its Checking Methods
The socialism system and the corruption are absolutely irreconcilable as fire and water. At present, the checking methods of the corruption should aim at its group summit. Commercial and great duplicity features, continuously educate the cadres with ideal and belief, construct perfect democratic supervision system, ascertain the responsibilities for establishing a clean party and government and severely investigate and deal with the corrupt.
Analysis of Variety Trials in the Presence of Non‐Random Time Effect
The assumption of random year effect in the analysis of variety trials data over locations and years clearly contradicts the practice of conducting the trials over only a few consecutive years. A method of analysis of such trials which assumes that the year-dependent effects are serially correlated is proposed in this paper to cater for the non-randomness in the selection of years of the experiments. A simple autoregressive model was assumed for the serial relationship. A reduction in the variance estimate of the difference between two variety means was obtained using this method.
Noise reduction in X-ray photoelectron spectromicroscopy by a singular value decomposition sorting procedure
In spite of the fact that most X-ray photoelectron spectroscopy (XPS) instruments are capable of acquiring multispectral data sets, few analysts choose to do so due to the time required to obtain an adequate signal to noise ratio. A significant reduction in the acquisition time can be achieved by the use of principal component analysis to reduce noise in the data set. Additionally a reduction in computational requirements of Principal Component Analysis (PCA) can be gained by prior application of a singular value decomposition sorting procedure. Data transformation prior to processing minimises the difficulties arising due to the non-uniform distribution of Poissonian noise through the spectra. The use of the procedure is illustrated to produce quantified elemental images from wide energy spectra, and chemical state maps requiring curve fitting to high energy resolution spectra. Finally we discuss the effect sample charging during analysis of insulators has on the images.
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Aristotle Metaphysics H6: a dialectic with Platonism
My aim in this paper is to provide an interpretation of this last chapter of Metaphysics H which demonstrates where and how this question is answered. My hope is that the interpretation I shall present is able to resolve one of the disagreements about the content of this chapter, namely whether the object whose unity is primarily at issue in H6 is the form man or the composite man. H6 is a text which is frequently caught in the crossfire of competing interpretations of Aristotle's explanation of substantial unity. It thus seems important to establish how this chapter works just in itself. Before embarking on my interpretation of the chapter, let me begin by way of orientation with what I take to be uncontroversial remarks about Aristotle's project and strategy in H6.
1,6‐Anhydro‐4‐O‐benzyl‐3‐deoxy‐2‐O‐methyl‐β‐d‐ribo‐hexopyranose and 1,6‐Anhydro‐4‐O‐benzyl‐2‐C‐(2‐cyanoethyl)‐2,3‐dideoxy‐β‐d‐ribo‐hexopyranose
The title compounds, C 14 H 18 O 4 and C 16 H 19 NO 3 , respectively, were obtained during studies of the relationship between structure and herbicidal activity of derivatives of levoglucosenone [Furneaux et al. (1989). European Patent Application 0 302 599 ; Furneaux, Henzell & Tyler (1991). US Patent 5 047 518 ; Blattner, Fumeaux, Mason & Tyler (1991). Pestic. Sci. 31, 419-435 ; Blattner, Fumeaux, Mason & Tyler (1994). Levoglucosenone and Levoglucosans : Chemistry and Applications, edited by Z. J. Witczak. ATL Press]. The crystal structures contain independent molecules held together by van der Waals packing forces. The different pendant groups at the C(2) positions have an insignificant effect on the fused dioxolane/pyranose ring conformations. The O-benzyl groups adopt different conformations apparently in order to minimize intermolecular non-bonding contacts.
The application of artificial neutral network to the economic regionalization of the forest land
Economic indicators which reflect the forest land location being used as factors.Self-organizing competition network was used to establish model.After studying and testing again and again,the economic regionalizations of forest land of 68 counties and cities of Fujian Province were made by useing the result of network simulation.They were divided into 4 districts.The result has basically reflected present utilization situation of forest land,and provided many references for the forestry economic regionalization in Fujian Province.
Wavelength Division Multiplexing at 2μm
This paper shows, for the first time, the implementation of a WDM subsystem at the 2μm wavelength window with mixed formats. Three wavelength channels were directly modulated with BPSK Fast-OFDM at 5Gbit/s per channel, with a fourth channel NRZ-OOK externally modulated at 8.5Gbit/s giving a total capacity in excess of 20 Gbit/s.
Short, highly efficient syntheses of protected 3-azido- and 4-azidoproline and their precursors.
[structure: see text] An improved synthesis of protected cis- and trans-3-azido-L-proline and cis- and trans-4-azido-L- and -D-proline is reported. These compounds have been synthesized from the corresponding hydroxyproline precursors using diphenylphosphoryl azide under Mitsunobu conditions. Short, highly efficient syntheses of these precursors are described, based on a new lactone-opening reaction and p-nitrobenzoate hydrolysis under very mild conditions.
Projecting Network Games Onto Sparse Graphs
We consider a problem of robustness in network game design. Given a nominally-well-behaved network game, we ask if the game can be guaranteed to retain its desirable properties when a single edge is removed from its associated graph of interdependencies. We show that even when the removed edge describes extremely weak interdependence, its removal can catastrophically change the emergent behavior associated with the game.
Delay Monitor Circuit for Sensitive Nodes in SRAM-Based FPGA
This paper presents a novel monitor circuit architecture and experiments performed for detection of extra combinational delays in a high frequency SRAM-Based FPGA on delay sensitive nodes due to transient ionizing radiation.
Real congruences of complex subspaces of 2 × 2 symmetric complex matrices
Abstract Consider complex subspaces of symmetric 2 × 2 complex matrices under real congruences (sending M to AMA T with A real and invertible). The orbits for dimension one were classified (in different language) two decades ago. Those for dimension two were recently classified by Coffman. It turns out that these two problems are in fact dual to each other, and Coffman’s classification yields a simpler expression for the orbits in dimension one.
Acute and Long-Term Surgical Management of the Spinal Cord Injury Patient
Many injured patients require post-acute care and rehabilitative services as part of their recovery from trauma. These patients often have ongoing medical care needs that continue past the immediate period of stabilization and treatment. Since prolonged hospitalization and immobilization contribute to functional decline, early progression to the rehabilitation phase is key. Therefore, it is important to better understand the common procedures, including complications and sequela, experienced by recovering trauma patients.
Activated carbon pickling device
The utility model provides an activated carbon pickling device which can prevent damage to a pv (polyvinyl) plastic barrel. The activated carbon pickling device comprises a barrel body with a liquid outlet at the bottom, a filter plate with filtering holes is arranged at the inner lower part of the barrel body, the barrel body is made of pv plastic, an annular wall which surrounds the barrel body and is built by refractory bricks and acid-proof cement is arranged on the outer side of the barrel body; and a gap is remained between the inner wall of the annular wall and the outer wall of the barrel body.
Iridoid Glucosides with Free Radical Scavenging Properties from Fagraea blumei
Four new iridoid glucosides 1–4, named blumeosides A–D, were isolated from the methanolic stem-bark extract of Fagraea blumei G. DON. (Loganiaceae). They were accompanied by the benzyl-alcohol derivative di-O-methylcrenatin (5) and the flavone C-glucoside swertisin (6). The structures of 1–4 were established by spectroscopic methods, including FAB-MS, and 1H- and 13C-NMR, and by alkaline hydrolysis. Blumeosides A (1) and C (3) are 10-O-(2,5-dihydroxytercphthalo) adoxosidic acid and 10-O-(2-hydroxyterephthalo)adoxosidic acid, respectively. In blumeosides B (4) and D (2), both carboxylic groups of the terephthalic-acid moiety are esterified by adoxosidic-acid units, Blumeosides A–D (1–4) inhibited bleaching of crocin induced by alkoxyl radicals. Blumeosides A (1) and D (2) also demonstrated scavenging properties towards the 2,2-diphenyl-1-picryl-hvdrazvl (CDPPH) radical in TLC autographic and spectrophotometric assays.
Risk Shifting Performance of Royalty Contracts; Airbus' Launch Aid is Better Still than Equity
The simple cash flow definition of profit, i.e. the pass-through dividend payout policy, is a standard workhorse of economic analysis. Nevertheless it is well established that firms smooth their dividend payouts and generally resort to dividend cuts only as a last resort. Thus far these empirically observed Lintner-style smoothed dividend equity shares have been omitted from analyses of risk shifting performance. This paper augments Sebenius and Stan's (1982) analysis of risk shifting performance with the empirically relevant category of smoothed dividend equity shares. Compared to the royalty vs. pass-through profit contrast, the revenue-cost covariance threshold at which it becomes risk-efficient to pay a royalty share (rather than a smoothed dividend) occurs at a lower, not necessarily positive level. This result provides further grounds for understanding the effect of royalty-based contracts throughout the economy, including European 'Launch Aid' for Airbus.
Erratum: Fcp1-dependent dephosphorylation is required for M-phase-promoting factor inactivation at mitosis exit
Cyclin B-dependent kinase 1, the M-phase-promoting factor, is precisely activated and inactivated to control mitosis. In this study, Fcp1—the RNA polymerase II-carboxy-terminal domain phosphatase—is identified as a phosphatase required to inactivate the M-phase-promoting factor and promote mitosis exit.
Listening, reading and understanding: how Jewish women read the Yiddish ethical literature (seventeenth to eighteenth century)*
ABSTRACTFor a long time, the study of the Old Yiddish literature was centred on the content of the books. Now the research is also focused on the information, written by the authors, translators, editors and printers, included in the introductions, prefaces and preliminaries of the printed editions. A central question concerns the practices of reading. In this article, inspired by the research of Shlomo Berger, we analyse how the Old Yiddish ethical books were read and studied by women, either during private or collective readings. The ethical literature, one of the main genres of the Old Yiddish literature, contains a great deal of information about the readership and the ways Jewish women used to read the Jewish popular books printed during the Early Modern period.
Impacts on Some Enzyme Activities and Photosynthetic Characters in Suscep-tible and Resistant Eggplants by Inoculation with Crude Toxin Isolated from Verticillium dahliae Kleb
The different eggplant varieties were inoculated with crude toxin isolated from Verticillium dahliaeKleb. The result showed that the peroxidase (POD) and superoxide dismutase (SOD) activities in resistanteggplants were higher than those in susceptible ones. However, polyphenol oxidase (PPO) and phenylalanineammonia lyase (PAL) activitives were relatively stable. Meanwhile, the net photosynthetic rate (Pn), stomatalconductance (Gs), transpiration rate (Tr) and intercellular CO2 concentration (Ci) in resistant eggplants were lessthan those in susceptible ones. While both eggplants displayed descending trend in Pn, Gs and Tr after inoculationfor 72 h.
Miniaturized Fractal Reflectarray Element Using Fixed-Size Patch
A Minkowski fractal-shaped patch is proposed for the design of a reduced-size reflectarray element. The intrinsic miniaturization capability of the fractal geometry is fully exploited by leaving unchanged the patch length, while using the fractal scaling factor to obtain a good reflectarray phase agility. The achieved size reduction effect allows to choose array grids with smaller interelement spacing, thus offering the opportunity to have wide-angle scanning capabilities. As validation test, a fractal-shaped X-band reflectarray element, embedded into a 0.3λ×0.3λ cell, is designed to give a high phase agility range, greater than 300°. Furthermore, the design and the experimental validation of a 15 ×15 reflectarray prototype are presented to prove the fixed-beam large angle pointing ability.
Carrier channels of multimodal-sized quantum dots: A surface-mediated adatom migration picture
This paper focuses on the study of carrier channels of multimodal-sized quantum dots formed on patterned substrate by a rate-equation-based model. Surface-mediated indium adatom migration is revealed by a direct comparison between quantum dot wetting layer, which acts as carrier channel, formed on a flat substrate and on a patterned substrate. For the assessment of suitability, the carrier channel of the dot-in-well structure has also been studied by the present model, and the transition energies of the carrier channel (e.g., InGaAs quantum well) obtained from theoretical simulation agree fairly well with those obtained from the reflectance measurements.
An Integrated Approach to the Automation of Class Three Electronic Design Problems
Over the years in an effort to shorten the lead time to production in electronic systems design the various steps of the process have been progressively automated. In recent times this short lead time has become increasingly important with time to market being the significant factor in product success in the 1980s and 1990s. In the production of working prototypes and ‘one off’ products, a short lead time is often more important than a design that is optimised in terms of parts cost.
The centennial of the Fenton reaction
Abstract A short account is given of Fenton's life and research, with special emphasis on the Fenton reactions.
Reduction of oxide films during consolidation of the charge used to make powder semifinished products
This article examines one possible method of making iron-carbon materials in order to obtain materials with a low content of impurities (especially oxygen) and sufficiently high density. The proposed method is also evaluated from the viewpoint of producing materials with a low carbon content. The technology traditionally used to obtain powder materials is discussed and the prospects for combining the reduction of surface oxides and consolidation of the powder into a dense semifinished product are examined. Powders of graphites obtained by using special synthetic low-ash pitch (SSLG) and high-temperature coaltar pitch (HCP) as the carbon-bearing components (CBC) are employed to achieve the stated objective of this investigation. The shaping method chosen is hot pressing with resistance heating.
Insecticide Resistance in Field Populations of Cotton Thrips (Thrips tabaci Lindeman) in Major Cotton Growing Regions of Tamil Nadu
Field populations of Thrips tabaci Lindeman collected from different cotton growing areas of Tamil Nadu (South India) were bioassayed for their susceptibility to thiamethoxam, imidacloprid and dimethoate. The population of Kumbakonam was highly susceptible as evident from the lowest LC50 and LC95 values; the values being 0.0571 and 1.1446 for thiamethoxam; 0.0390 and 0.6914 for imidacloprid and 94.1882 and 999.0683 ppm for dimethoate, respectively. T. tabaci was highly susceptible to imidacloprid and thiamethoxam when compared to dimethoate. The Resistance Factor at LC95 varied from 1.36 to 2.28, 1.21 to 2.84 and 1.91 to 4.82 for thiamethoxam, imidacloprid and dimethoate, respectively for all the populations. In general, the populations of T. tabaci exhibited low level of resistance to these insecticides.
INERTIAL PROFILOMETER USES IN THE PAVEMENT MANAGEMENT PROCESS
The inertial profilometer has the potential to become one of the most important tools in the pavement condition evaluation process. This paper discusses its continuing development, including a noncontact profile sensor, digital profile computation, and an array of computer software developments that will further enhance the inertial profilometer's contribution to the pavement management process. For historical purposes the paper also discusses the original development of the inertial profilometer at the General Motors Research Laboratories in the early 1960s and its introduction into the user community by K.J. Law Engineers, Inc. (Author)
Exhibitions: exotica and exigencies
Two exhibitions, in England and France, are showing different ways to promote interest in archaeology and history from regions afar. Sudan: ancient treasures is a lavish and elegant show at the British Museum, London. In Auch, Le crepuscule des dieux , on the Americas, is imaginative but penurious. The first raises an ethical worry, the second a couple of technical principles. Sudan displays some 350 exhibits, from an Acheulian handaxe to Medieval inscriptions, all from the Sudan National Museum, celebrating its centenary. Most are clearly arranged in chronological sections, and amplifying the narrative are an effective introduction and sections on goldwork, pottery and burials. The exhibition is completed by photographs of the multinational Meroe Dam Archaeological Salvage Project, which (it is claimed) has enhanced knowledge of the Sudan’s northern Nile. My visit was amidst a steady flow of highly attentive visitors from the world over and an excited but also attentive school party.
East Coast Rooms Portfolios Of 31 Interior Designers And Architects
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SHARP INEQUALITIES FOR RIESZ TRANSFORMS
We establish the following sharp local estimate for the family fRjg d=1 of Riesz transforms on R d . For any Borel subset A of R d and any function f : R d ! R, Z A jR jf(x)jdx CpjjfjjLp(Rd)jAj 1=q ; 1 < p <1: ; 2 p <1: This enables us to determine the precise values of the weak-type constants for Riesz transforms for 1 < p <1. The proof rests on appropriate martingale inequalities, which are of independent interest.
Losing Weight: The Organizational Promotion of Behavior Change
This analysis explores the sociological dimensions of obesity as a type of deviance through a study of the strategies used by one voluntary weight loss organization to change the behavior of fat people so they will become thin. Goffman's concept of stigma and Lemert's theory of secondary deviation are applied to these strategies. The study concludes that under certain circumstances, stigma may be used to change behavior from deviant to normal and that a deviant identity, deviant behavior and a deviant way of life do not always vary together.
Effectiveness of the Mini-Mult in detecting MMPI pathology in the blind
The Mini-Mult and MMPI were administered in random order to 60 blind male veterans admitted to a residential rehabilitation program. Mini-Mult scores predicted the presence or absence of MMPI pathology in 81.7% of the cases. Correlations between the individual Mini-Mult and MMPI scales were significant at the p < .01 level, but not of sufficient magnitude to permit their interchangeability or to allow for profile diagnosis on the basis of Mini-Mult scores. Analysis of the false negatives raises questions about the clinical significance of an abnormal MMPI in the population studied. The results support the value of the Mini-Mult as a screening device, but not as a substitute for a detailed psychological assessment of the blind.
The Min system is not required for precise placement of the midcell Z ring in Bacillus subtilis
In bacteria, the Min system plays a role in positioning the midcell division site by inhibiting the formation of the earliest precursor of cell division, the Z ring, at the cell poles. However, whether the Min system also contributes to establishing the precise placement of the midcell Z ring is unresolved. We show that the Z ring is positioned at midcell with a high degree of precision in Bacillus subtilis, and this is completely maintained in the absence of the Min system. Min is therefore not required for correct midcell Z ring placement in B. subtilis. Our results strongly support the idea that the primary role of the Min system is to block Z ring formation at the cell poles and that a separate mechanism must exist to ensure cell division occurs precisely at midcell.
The Exploratory Process of the "China Brand" Crystals: An Interview with Academician Chen Chuangtian
Nonlinear optical crystals BBO, LBO and KBBF were developed by Chinese scientists, and have been named "China Brand" crystals by foreign scholars. Being the main leader of the research, Academician Chen Chuangtian talks about how the anionic group theory came to be proposed, and how the nonlinear optical crystals such as BBO were developed.
Unexpected Role of Anionic Ligands in the Ruthenium-Catalyzed Base-Free Selective Hydrogenation of Aldehydes
Bigger and better: The replacement of anionic chloride ligands in Noyori-type [(diamine)(diphosphine)RuCl2 ] catalysts with bulky carboxylate ligands enabled the efficient selective hydrogenation of a variety of aldehydes under base-free conditions. Turnover numbers of up to 100 000 were reached in the presence of a bulky carboxylic acid co-catalyst. This type of catalytic system probably operates through an inner-sphere mechanism.
ONE THOUSAND UNSUCCESSFUL CAREERS
Since time immemorial society has dealt with the problem of poverty on a moral basis. Success has been honorific and failure ignominious, and so handicapped persons failing to make the social grade have been judged by the method of moral evaluation. The terms "lazy," "improvident," "vicious" have been used as terms of reproach. Each advance in civilization has led to a changed technique in dealing with human failures; but in general, all have tended to attribute the squalid condition of the poor to individual qualities. Latterly there has been a change in attitude. There has been more solicitude for the common man and his welfare and less willingness to allow avarice and greed to go unchecked. The tendency has been away from scrutiny of the individual and toward scrutiny of social organization. Sociologists in particular have attributed the plight of handicapped classes to social disorganization, and vast plans have been made for their relief, with very little information concerning the personality of the...
Are European Convertibles More Debt-Like than the US Issues? An Empirical Analysis
The popular financial press often suggests that convertible debt issued by European firms is more debt-like in nature than convertible debt issued by US firms. This paper is the first to formally test the validity of this common perception. Our evidence indicates that European convertibles are effectively structured to be more debt-like than US convertibles. We also show that European convertible debt announcements induce less negative stockholder reactions than US announcements, which is consistent with the larger debt component of the former securities. Lastly, we explore some potential explanations for the relatively more debt-like design of European convertibles. Our results indicate that this finding may be attributable to both issuer-related and institutional differences across European and US convertible debt markets.
A prospective evaluation of preemployment screening methods for acute industrial back pain.
Preemployment screening methods have been ineffective in predicting those at risk, and in curbing the impact of back problems in industry. Such methods have centered on individual physical factors (capacities and clinical examination). This study evaluates commonly used physical examination measures and simple historical data for its ability to predict individuals at risk for future back injury reporting in the aircraft industry. In this study, once simple historical information about previous pain treatment was known, information gained from physical factors added no significant predictive value.
An Update on Cystic Fibrosis Screening
Cystic fibrosis (CF) is a monogenic, autosomal recessive disorder, which ultimately leads to multisystem organ dysfunction and a subsequent decrease in life expectancy. Because of the sizeable number of disease causing mutations (>1000) and expansive ethnic and racial distribution, CF has presented a challenge for prenatal diagnosis. This article aims to review the genetics of CF, its spectrum of genotypic-phenotypic variations, current prenatal carrier screening and diagnostic recommendations, ultrasonographic markers of CF, and available reproductive options for carrier couples.
Intermetallic compounds for use as catalysts and catalyst systems
The present invention relates to intermetallic compounds for use as catalysts for chemical reactions and catalyst systems. Ordered structure of the intermetallic compound allows such compounds to function as highly efficient catalysts. The ordered intermetallic compound, among other many applications, the fuel cell (e.g., a hydrogen fuel cell) can be used to catalyze the reaction in.
Post-Communist Cross-Border Migration in South-Eastern Albania: Who Leaves? Who Stays Behind?
The opening-up of Albania to the outside world in the early 1990s brought about changes that have had a dramatic effect on society. Emigration has been a major consequence of the fall of communism. An estimated 600,000 or so Albanians are believed to have left the country, many of them permanently. Useful as such a piece of information is, it falls short of the data required to understand the motivations and micro-level consequences of cross-border migration, whether temporary or of a more permanent nature. Why do Albanians leave? Who leaves—and who stays behind? Are there any identifiable trends in the propensity to move, type of movement or the reason why people leave? Several studies have addressed issues such as these, but few (if any) have had the privilege of using survey data that are based on a statistically sound sampling frame. This paper, which is based on a survey conducted in the Korce district in south-eastern Albania in late 2002 with regional planning ends in mind, adopts the perspective o...
Preparation method of opaque glaze
The invention relates to a preparation method of an opaque glaze. Firstly, the molar number of all alkaline oxides in the formula of the opaque glaze is determined, and then the molar ratio of silicon oxide in the formula is controlled to be 3.00-4.50 and the molar ratio of aluminium oxide in the formula is controlled to be 0.30-0.40, thus the glaze is opacified in an opacifying area to form the opaque glaze. The raw materials adopted by the preparation method are low in cost, the preparation process is simple and is easy to control, and the opaque glaze is high in brightness, thus the preparation method has a wide application prospect.
The Immediate Effects of Tension of Counterforce Forearm Brace on Neuromuscular Performance of Wrist Extensor Muscles in Subjects With Lateral Humeral Epicondylosis
Study Design Within-subject repeated-measures study. Objectives To examine the immediate effects of counterforce forearm brace on isokinetic strength, stretch reflex, passive stretching pain threshold of the wrist extensors, and proprioception of the wrist in subjects with lateral humeral epicondylosis for different strap tensions of a forearm brace. Background Counterforce forearm bracing has been used for treating lateral humeral epicondylosis, but the effect of brace tension has not been well reported. Methods and Measures Fifteen subjects diagnosed with lateral humeral epicondylosis on their dominant arm were tested under 4 randomized conditions: (1) no brace, (2) brace with minimal tension, (3) brace with 25-N tension, and (4) brace with 50-N tension. The tests included isokinetic wrist extensors strength, passive stretching force in wrist flexion to elicit pain in the wrist extensors, wrist proprioception, and stretch reflex latency of the extensor carpi ulnaris. A repeated-measures MANOVA was used ...
Description of Micropygomyia brandaoi sp. n. (Diptera: Psychodidae: Phlebotominae), a fossil phlebotomine from the Dominican Republic
The description of Micropygomyia brandaoi, a new species of fossil phlebotomine sand fly, is based on one male specimen obtained from Dominican amber of the Miocene period (20 million years). In this new species, the fifth palpal segment is long, the coxite lacks a setal tuft and the style shows four well-developed spines. This set of characters allowed us to place the new species in the genus Micropygomyia Barretto.
Marian Penner Bancroft, Sylvie Readman : Trouble en vue = Marian Penner Bancroft, Sylvie Readman : Trouble in View
This catalogue refers to an exhibition organized for Le Mois de la photo in Paris, whose theme was “Picturing Women”. Curators Langford and Bedard emphasize how both Bancroft and Readman provide a distinctly feminine perspective on landscape – one in terms of family lineage and, the other, in terms of reappropriating territory and the notion of displacement. Texts in French and English ; list of works. 8 bibl. ref.
Influence of MgO doping on the structure of monocrystalline LiNbO3
Conditions for the growth of LiNbO3:MgO single crystals by the Czochralski method were optimized. An upper limit of the molar MgO concentration in the melt for obtaining limpid, optically homogeneous crystals was determined. The Curie temperature was measured on precisely defined samples and so real MgO contents in the single crystal phase, distribution coefficients and longitudinal concentration profiles could be determined using this calibration curve. X-ray diffraction and optical absorption in the near infra-red and in the ultra-violet and visible regions were also studied on LiNbO3:MgO single crystals. Lattice constants and positions of the OH− absorption band and of the short-wave absorption edge were determined on the basis of described measurements. Dependences of all the above-mentioned properties on the molar MgO concentration were found out. The simple model of microscopic mechanisms for explaining these experimental data was proposed.
Frailty Among Patients Receiving Hemodialysis: Evolution of Components and Associations With Mortality
Background ::: Understanding how components of frailty change over time and how they can be modeled as time-dependent predictors of mortality could lead to better risk prediction in the dialysis population.
Aviation and Procedural Medicine
Aviation and medicine are two complex fields involving many interdependent steps where problems can occur. When they inevitably do the outcome can be catastrophic, leading to injury or even loss of life. While both professions have made great strides to reduce error and improve safety, we would suggest medicine can still learn much from the approach aviation has developed. We will show how pilots spend a significant amount of time on planning and early recognition of impending challenges, utilize the concept of crew resource management routinely, and stay much focused during each specific mission. More importantly, they are very open and committed to discussing every event or near event to improve the system, and are supported in this by their superiors without fear of punishment or retribution. By adopting many of these principles, medicine can develop a true culture of safety such as aviation has done, leading to a remarkable improvement in their safety record.
Numerical and experimental dynamic analyses of Hägernäs pedestrian bridge : Including seasonal effects
Wood as a construction material has in recent years increased, in particular concerningpedestrian bridges. By utilizing wood, the ecological footprint can be reduced,and the material can be designe ...
Electrochemically induced one pot synthesis of 1,4-dihydropyrano[2,3-c]-pyrazole-5-carbonitrile derivatives via a four component-tandem strategy
Abstract An efficient one pot, multicomponent-tandem synthesis of highly functionalized 1,4-dihydropyrano[2,3- c ]-pyrazole-5-carbonitrile is reported by electrochemically induced condensation of ethyl acetoacetate, hydrazine hydrate, malononitrile and various aromatic aldehydes. The reaction is carried out in an undivided cell, at a constant current in the presence of NaBr as a supporting electrolyte and ethanol as solvent.
Reglerstrategier för vattenkraftverk
Hydro power stations are normally controlled by PID-controllers. One example is the Torsebro hydro power plant in Helge river. The Southern Sweden Power Supply (Sydkraft SB) initiated a research project addressing the water level control problem of hydro power plants. The goal of this master thesis was to investigate the level-control problem. Different control structures were analyzed like. PID-schemes, Feed-Forward compensators and Observers, based on Kalman filter techniques. The thesis contains a description of the process, development of a dynamic simulation model represented in the SIMNON language, analytic studies of the sampled model and simulations using different control structures. Compared to conventional design (PID), the Feed-Forward compensator structure gives a significant better performance. However, this structure assumes that the disturbances can be measured. Observer structures, are more related to reality and gives acceptable performance. (Less)
Integrated silicon nitride organic hybrid DFB laser with inkjet printed gain medium
The provision of a coherent light source is a prerequisite for a variety of photonic integrated circuits. The integration of semiconductor laser diodes in disposable photonic devices in fields such as biosensing is, however, impeded by the competitive pricing in this application area. In this work, we demonstrate lasing of an alternative laser light source, namely an integrated hybrid organic solid-state distributed feedback laser for a silicon nitride photonic platform. The laser is optically pumped with a high power 450 nm laser diode and emits in the visible at 630 nm into a waveguide taper to reduce the cross-section to a single mode geometry. Inkjet printing of the organic gain medium enables a local, cost-effective, and flexible processing technology. The fabrication of the presented coherent light source is CMOS compatible and therefore highly interesting for co-integrated sensing platforms.
Viewpoint: Malpractice-related finances remain a concern for physicians
Tort reform remains an important issue for physicians, but a survey indicates that relief may be at hand for malpractice premiums.
Operational requirements for an earthquake forecasting programme for New Zealand
This paper reviews considerations attendant on introducing an operational forecasting scheme in New Zealand. A background section summarizes the current views on the scientific basis of earthquake forecasting and the progress of empirical studies on New Zealand data. Further sections examine the likely form and time-scale of earthquake forecasts, technical resources required for different aspects of developing the forecasts, the need to identify and work with users of forecast information, and the protocols and procedures for issuing regular and ad hoc forecasts. The need for integrating the development of a forecasting programme within a coordinated framework of natural hazard mitigation is emphasized.
Promoting Qarḍ al-Ḥasan in Nanofinance to Counter The Moneylender in Southeast Asia
Moneylending is a real humanitarian problem in Asian countries, including in Southeast Asia. This study examines moneylending activities in this region, where poor people become a target. An emergency need forces them to seek out a moneylender. This paper argues that nanofinance may address the microfinance gap to counter the moneylender. Despite the existence of nanofinance, it has not obtained as much attention as microfinance. However, nanofinance activities have run in some Asian countries to help the poor. By interviewing some informants in Indonesia, Vietnam, and Cambodia, and then reviewing the empirical study and context in Malaysia, Thailand and Brunei, this paper intends to: (1) Describe the practice of moneylending in Indonesia, Vietnam, Cambodia, Malaysia, Thailand and Brunei; (2) Describe the nanofinance practice in Indonesia and Thailand; (3) Promote qarḍ al-ḥasan as the philanthropy contract of (Islamic) nanofinance.
Spectral biodiagnostics of tissues with fiber optics
The synergy of novel MIR-fibers with FTIR-spectroscopy opens a new horizon in applications of spectroscopy in 4 − 16 μm range in vivo medical diagnostics. The innovated bare core and core-clad MIR-fibers are produced by hot extrusion method from the crystals of silver halides solid solutions. These non-toxic and non-hygroscopic fibers are characterized by low optical losses: 0.1 − 0.5 dB/m nearby 10μm, and high flexibility: Rbending > 10–100 fiber diameters. Some prototypes of accessories for FTIR-spectrometers, based on commercially available MIR-fibers for several areas of promising applications are developed. Non-invasive medical diagnostics in vivo: cancer detection and glucose content measurements in whole human blood is possible. The new family of evanescent fiber sensors is started for the direct in-process applications. Fiberoptic Evanescent Wave FTIR Spectroscopy (FEWS) for cancer diagnosis in human organs is exemplified in this paper, and their great potentiality is demonstrated.
Productivity and Market Selection of French Manufacturing Firms in the Nineties
This paper analyses post-entry and pre-exit performance of French firms using a dataset covering 14 manufacturing industries over the period 1990-2002. The main focus is on market selection mechanisms looking at total factor productivity levels of entrants and exitors relative to incumbent firms. Entrants are found to outperform incumbents, while exitors are less efficient than their surviving counterparts. We nonetheless found key distinguishable features of exit patterns between young and mature firms. Young exiting firms do not display productivity disadvantage relative to incumbent firms. By contrast, mature exiting firms display large and persistent productivity disadvantage relative to their surviving counterparts (shadow of death effect). The determinants of exit differ for entrants and incumbents. Productive inefficiency is a key determinant of the exit of mature firms but not entrants.
Activity of metalloproteinases and adiponectin in obese patients— a possible factor of incisional hernias after bariatric procedures
Purpose ::: Metalloproteinases are a key component of the pathogenesis of abdominal hernias. Obesity is considered a risk factor in herniogenesis and hernia recurrence. The aim of this study was to evaluate the serum concentrations of metalloproteinase-2 (MMP-2), MMP-9, MMP-13, and adiponectin in morbidly obese and nonoverweight controls.
[Peyronie's disease. Therapeutic difficulties].
The authors report their experience of the treatment of Peyronie's disease on the basis of 27 cases. In the light of their results and the data reported in the literature, they study the place of infiltrations, plication of the corpora cavernosa and implants in the treatment of this disease.
PURIFICATION OF L-METHIONINE AND N-ACETYL-D-METHIONINE FROM THE MIXTURE OF ENZYMATICALLY DEACYLATED N-ACETYL-DL-METHIONINE
N-acetyl-D-methionine, NaAc and the remains of N-acetyl-L-methionine dramatically affect the purification of L-methionine when purified from the mixture of enzymatically deacylated N-acetyl-DL-methionine, leading to a low yield conventionally. Here, this paper reports a successful separation and purification of both L-methionine and N-acetyl-D-methionine by an H ion-exchange column. The pH, L-Met concentration and the ratio between the content of sodium cation and the ion-exchange capacity were optimized to obtain the maximum yield. Experimental results indicate that, under the optimized conditions, the yields of L-methionine and N-acetyl-D-methionine can reach as high as 85% and 75%, respectively.
Improvement in critical current density under magnetic field in heavily Pb-doped Bi2Sr2CaCu2Ox superconducting tape
A heavily Pb-doped Bi2Sr2CaCu2Ox (Bi-2212) tape has been prepared using an isothermal partial melting method. Width of magnetic hysteresis (ΔM) normalized by ΔM under 0 Oe decreases with increasing magnetic field (H∥c axis) at 20–60 K; this occurs more rapidly in pure Bi-2212 tape (Pb-free tape) than in Pb-doped tape. Irreversibility field under the H∥c axis is elevated by Pb doping at 20–60 K. Moreover, a decrease in transport critical current density (Jc) with increasing H∥c axis is reduced by Pb doping at 20–60 K. In particular, a peak is observed at 2.0 kOe in Jc–H curves at 20 and 30 K. Hole concentration in the Pb-doped tape seems to be close to the optimum, as magnetic superconducting transition starts at 91 K. Therefore, the above results are due to production of new pinning centers induced by applying the magnetic field. It is clear that heavy Pb doping is effective for Bi-2212 polycrystalline tape in producing efficient pinning centers for the H∥c axis as reported in Bi-2212 single crystals.
Why do nations matter? The struggle for belonging and security in an uncertain world
This paper explores the reasons why national forms of identification and organization (might) matter in the contemporary era. In contrast to the majority of macro-sociological work dealing with this topic, I develop an analytical framework that draws together recent research on everyday nationalism with micro-sociological and psychological studies pointing to the importance of routine practices, institutional arrangements and symbolic systems in contributing to a relatively settled sense of identity, place and community. The second part of the paper focuses on the hierarchies of belonging that operate within a given national setting. Of particular interest is the largely taken-for-granted status of the ethnic majority and the degree to which it underpins claims to belonging and entitlement that are used to secure key allocative and authoritative resources.
Ramada Encore Bangkok, Bangkok - Ticket Link
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Activation of Aromatic C−C Bonds of 2,2’-Bipyridine Ligands
4,4'-disubstituted-2,2'-bipyridine ligands coordinated to Mo(II) and Re(I) cationic fragments become dearomatized by an intramolecular nucleophilic attack from a deprotonated N-alkylimidazole ligand in cis disposition. The subsequent protonation of these neutral complexes takes place on a pyridine carbon atom rather than at nitrogen, weakening an aromatic C-C bond and affording a dihydropyridyl moiety. Computational calculations allowed to rationalize the formation of the experimentally obtained products over other plausible alternatives.
The Li2 F 1Σg+ “shelf” state: Accurate potential energy curve based on the inverted perturbation approach
We report an accurate inverted perturbation approach (IPA) potential energy curve for the “shelf” F 1Σg+ state in Li2 which reproduces positions of the experimental energy levels available in the literature for all three isotopomers 7Li2, 6Li7Li, and 6Li2 with a standard deviation of 0.11 cm−1. Our analysis significantly improves the shape of the recently reported Rydberg–Klein–Rees (RKR) potential curve of the F 1Σg+ state [Antonova et al., J. Chem. Phys. 112, 7080 (2000)] and provides evidence for the existence of a shallow minimum in the shelf region. Using our IPA potential curve we were able to localize and identify some local perturbations in the spectra, as well as to correct the assignment of several spectral lines previously observed experimentally.
Irrational Limit and its Guide of Social Development
There are rational and irrational factors in man's understanding and social practical activities. Social development is actually process of man's understanding and social practical activities.Therefore,irrational factor influence social development through man's understanding and social practical activities.This text defines irrational factor and analyzes negative effect of irrational factor in social development,in order to guide effectively irrational factor,turn the negative factor to aggressive factor,urge the healthy development of the social activities and the normal operation of the social machine body.
Myth and the Construction of Meaning in the Soledades and the Polifemo
Abstract This essay examines the role of mythological allusions in the Soledades and the Polifemo, and in particular those with which both poems open. While many critics have identified the sources of the myths Gongora uses, less attention has been given to their importance as markers of meaning. I aim to show how these allusions exercise a broader function than is commonly understood, especially in preparing the way for what is to come; how insufficient attention has been paid to the biblical reference to Jonah; and how the apparently discrete allusions belong to larger patterns of mythological discourse the presence of which can be detected at later points in the poems. I shall look at the ways in which they establish the themes of shipwreck and deliverance in the Soledades and consistently associate both Galatea and Acis with death in the Polifemo. I conclude that in each case the poems offer a more complex vision of love than some have thought.
B2B e-commerce supply chain integration and performance: A contingency fit perspective on the role of environment
Drawing upon contingency theory ''fit'' research in the IT and supply chain management literature, we applied the ''fit'' concept to the relationship between B2B e-commerce supply chain integration and performance. The results demonstrated that the effect of B2B supply chain integration on financial, market, and operational performance decreased as product turbulence and demand unpredictability jointly increased. Managerial implications include the conditions under which IT investments yield performance improvement and the need for firms to actively manage demand uncertainty.
Pediatric Chronic Sinusitis: What Art Thou?
Pediatric chronic sinusitis has been re-termed, pediatric chronic rhinosinusitis, largely following the adult nomenclature. However, other large areas of medical management of the process have remained largely uninvestigated. This opinion piece discusses the gaps in our current knowledge of pediatric rhinosinusitis pathophysiology and limitations of current management protocols.
Modeling of Heterogeneous and Controlled Populations
Age-structured population models, considered in Chap. 6, have become a traditional tool in biological modeling and are widely used in other disciplines. They possess well-developed investigation techniques. However, the size of individuals is a more important parameter than their age for some species. Section 7.1 considers two size-structured models that describe a population with natural reproduction and a fully managed population and explores links between size- and age-structured models. Nonlinear models of heterogeneous populations with intraspecies competition and their investigation techniques (steady-state and bifurcation analyses) are discussed in Sect. 7.2. An endogenous control is introduced into the model to address management problems in farming, fishery, forestry, and other applications. Controlled age- and size-dependent models are considered in Sect. 7.3.
A system for a computer-based content analysis of interview data
Content analysis based on frequency distributions differs from impressionistic analysis and interpretations of written or spoken text. This type of analysis is objective insofar as it requires an explicit analysis procedure and a formalised analysis. Objectification means that a person transfers certain typical human functions to objects, i.e., tools, and that machines are developed that can carry out functions that were originally subjective. In this respect the development of a Computer-based Content Analysis (CCA) is an attempt to objectify the method of content analysis.
Villains Called Sicarii: A Commonplace for Rhetorical Vituperation in the Texts of Flavius Josephus
Examining the presentation of sicarii in Flavius Josephus’s Judean War from a rhetorical perspective, this article argues that each reference to sicarii alludes to the clauses of a Roman law concerning sicarii, which Josephus has used as a commonplace for rhetorical vituperation against particular groups. Three literary-rhetorical tendencies of War are highlighted to show how this vituperation, as well as the connection between War’s sicarii and the so called Fourth Philosophy, is part of a general rhetorical strategy to shift the blame for the outbreak of the violent conflict to one particular rebel group.
Evidence of duration and type of illness in children found unexpectedly dead.
The thymus, rib, and liver from a series of 200 children found unexpectedly dead showed that in over 90% of these children the costochondral junction indicated that a retardation in growth velocity had preceded death. In a similar proportion of children the liver showed fatty change indicating a metabolic upset, which in 5% was of severe degree. Changes in the thymus compatible with a normal reaction to infection were observed in only a little over half of the child deaths. An absence of gross thymic reaction in some children in whom there was other evidence of infection suggests that in some an abnormal immunological reaction was taking place. It is concluded that careful systematic clinical monitoring of growth in these children would have shown abnormality in nearly all.