bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimally Managing a Stochastic Renewable Resource under General Economic Conditions
Authors: McGough Bruce , Plantinga Andrew J. , Costello Christopher 
Published: December 2009

Abstract
Empirical evidence indicates that environmental fluctuations have important effects on fisheries production. However, existing analytical solutions of stochastic fisheries models have been produced only under highly simplified economic and biological conditions. The main contribution of this paper is to derive under general conditions a policy function for the management of a stochastic fishery. Our model includes general specifications of demand and cost relationships and a stochastic biological growth function with serially-correlated shocks. Applying methods from the theory of dynamic stochastic general equilibrium modeling and multivariate linear expectational difference equations, we derive a linear approximation of the solution to the model. Our main result is a reduced-form expression for an approximation to optimal escapement, which is shown to be a function of the current stock, past environmental shocks, and model parameters. This theoretically-grounded policy function has intuitive appeal, yields insights into comparative statics, and provides a theoretically-grounded, practical starting point for fisheries management.
Truncal Pruritus of Unknown Origin May Be a Symptom of Diabetic Polyneuropathy
Authors: Yamaoka Hiroyuki , Sasaki Hideyuki , Yamasaki Hiroshi , Ogawa Kenichi , Ohta Takayuki , Furuta Hiroto , Nishi Masahiro , Nanjo Kishio 
Published: December 2009

OBJECTIVE
Our goal was to ascertain the prevalence of pruritus in diabetic and nondiabetic subjects and the relevance of symptoms, signs, and nerve functions of diabetic polyneuropathy (DPN) of pruritus.

RESEARCH DESIGN AND METHODS
A large-scale survey of 2,656 diabetic outpatients and 499 nondiabetic subjects was performed. In diabetic subjects, the relationship between pruritus and age, sex, diabetic duration, A1C, Achilles tendon reflex (ATR), and abnormal sensation in legs was evaluated. In 105 diabetic subjects, nerve conduction studies, quantitative vibratory threshold (QVT), heart rate variability, and a fall of systolic blood pressure at a head-up tilt test (ΔBP) were performed, and the relationships between pruritus and nerve functions were evaluated.

RESULTS
Although the prevalence of truncal pruritus of unknown origin (TPUO) in diabetic subjects was significantly higher than that in age-matched nondiabetic subjects (11.3 vs. 2.9%, P = 0.0001), the prevalence of other pruritus was not different between the two groups. Multiple logistic regression analysis revealed that abnormal sensation and ATR areflexia were independent risk factors for TPUO in age, sex, duration of diabetes, and A1C. ΔBP in diabetic subjects with TPUO was significantly impaired compared with that in those without TPUO. Larger ΔBP was identified as a significant risk factor of TPUO independent of other nerve dysfunctions by multiple logistic regression analysis.

CONCLUSIONS
TPUO is significantly more frequent in diabetic than in nondiabetic individuals. TPUO is significantly associated with symptoms and signs of DPN, including impaired blood pressure response in a head-up tilt test. TPUO, therefore, might be a newly recognized symptom of DPN.
Synthesis and characterization of silica gel microspheres encapsulated by salicyclic acid functionalized polystyrene and its adsorption of transition metal ions from aqueous solutions
Authors: Xu Qiang , Yin Ping , Zhao Guifang , Yin Gui , Qu Rongjun 
Published: December 2009

Abstract
The present study was undertaken to develop a novel adsorbent for heavy metal ions, and this paper presents the synthesis and characterization of a composite material-silica gel microspheres encapsulated by salicyclic acid functionalized polystyrene (SG-PS-azo-SA) with a core-shell structure. SG-PS-azo-SA was used to investigate the adsorption of Mn(II), Co(II), Ni(II), Fe(III), Hg(II), Zn(II), Cd(II), Cr(VI), Pd(II), Cu(II), Ag(I), and Au(III) from aqueous solutions. The results revealed that SG-PS-azo-SA has better adsorption capacity for Cu(II), Ag(I) and Au(III). Langmuir and Freundlich isotherm models were applied to analyze the experimental data, the best interpretation for the experimental data was given by the Langmuir isotherm equation with the maximum adsorption capacity for Cu(II), Ag(I), and Au(III) at 1.288 mmol g−1, 1.850 mmol g−1 and 1.613 mmol gt-1, respectively. Thus, silica gel encapsulated by salicyclic acid functionalized polystyrene (SG-PS-azo-SA) is favorable and useful for the removal of Cu(II), Ag(I) and Au(III) metal ions.
Preparation, characterization and enhanced photocatalytic activity of Ni2+ doped titania under solar light
Authors: Gomathi Devi L. , Kottam Nagaraju , Girish Kumar S. , Eraiah Rajashekhar K. 
Published: December 2009

Abstract
Anatase TiO2 was prepared by sol-gel method through the hydrolysis of TiCl4. Ni2+ was doped into the TiO2 matrix in the concentration range of 0.02 to 0.1 at.% and characterized by various analytical techniques. Powder X-ray diffraction revealed only anatase phase for all the samples, while diffuse reflectance spectral studies indicated a red shift in the band gap absorption to the visible region. The photocatalytic activities of these photocatalysts were probed for the degradation of methyl orange under natural solar light. The photocatalyst with optimum doping of 0.08 at.% Ni2+, showed enhanced activity, which is attributed to: (i) effective separation of charge carriers and (ii) large red shift in the band gap to visible region. The influence of crystallite size and dopant concentration on the charge carrier trapping — recombination dynamics is investigated.
Synthesis, spectral characterization and catalytic studies of new ruthenium(II) chalcone thiosemicarbazone complexes
Authors: Muthukumar Manisekar , Viswanathamurthi Periasamy 
Published: December 2009

Abstract
A series of new hexa-coordinated ruthenium(II) complexes of the type [Ru(CO)(EPh3)(B)(L)] (E = P or As; B = PPh3, AsPh3 or Py; L = chalcone thiosemicarbazone) have been prepared by reacting [RuHCl(CO)(EPh3)2(B)] (E = P or As; B = PPh3, AsPh3 or Py) with chalcone thiosemicarbazones in benzene under reflux. The new complexes have been characterized by analytical and spectroscopic (IR, UV-vis, 1H, 31P and 13C NMR) methods. On the basis of data obtained, an octahedral structure was assigned for all of the complexes. The chalcone thiosemicarbazones behave as dianionic tridentate O, N, S donors and coordinate to ruthenium via the phenolic oxygen of chalcone, the imine nitrogen of thiosemicarbazone and thienol sulfur. The new complexes exhibit catalytic activity for the oxidation of primary and secondary alcohols to their corresponding aldehydes and ketones and they were also found to be efficient catalysts for the transfer hydrogenation of carbonyl compounds.
Trauma to transplanted kidney with open fractures: Report of a case
Authors: Piskin Turgut , Aydin Cemalettin , Kayaalp Cuneyt , Sumer Fatih 
Published: December 2009

Abstract
A 45 year-old man, who had undergone kidney transplantation 7 years prior, was admitted to hospital after a motorcycle accident. The patient was conscious, hemodynamically stable, and had suffered open tibia and femur fractures, as well as closed pubic arm fractures. He had gross hematuria and radiologic study revealed a 3.5 cm length laceration on the transplanted kidney. His renal functions and hematuria recovered after intensive care. He required 2 surgeries for the open fractures but his general condition worsened after the surgical interventions. Acinetobacter, Candida albicans and pseudomonas aeruginosa were determined by blood cultures. Immunosupressive drugs (cyclosporine, prednisolone and azathioprine) were stopped. Despite intensive care, the patient died of sepsis 17 days post trauma. Open fractures of long bones provide a higher risk of sepsis in transplant patients than closed fractures.
Kinetics of nitric oxide oxidation
Authors: Skalska Kinga , Miller Jacek , Ledakowicz Stanisław 
Published: December 2009

AbstractNitrogen oxides are nowadays a subject of global concern. Several types of nitrogen oxides exist in the environment: N2O, NO, NO2, N2O3, N2O4, N2O5. The abbreviation NOx usually relates to nitric oxide NO, nitrogen dioxide NO2, and nitrous oxide N2O. The first two are harmful pollutants for both environment and human health, whereas the third is one of the greenhouse gases. Implementation of stringent NOx emission regulations requires the development of new NOx removal technologies from exhaust gases. One of many proposals for NOx emission reduction is the application of an oxidizing agent which would transform NOx to higher nitrogen oxides with higher solubility in water. The main objective of the paper was to present the rate constant of nitric oxide oxidation, determined in our studies.
Simulation of aerobic landfill in laboratory scale lysimeters — effect of aeration rate
Authors: Slezak Radoslaw , Krzystek Liliana , Ledakowicz Stanisław 
Published: December 2009

AbstractAeration of municipal landfills contributes to the acceleration of organic matter degradation and to the decrease of pollutant emission into air, water, and soil. Biodegradation of organic matter present in municipal waste, deposited in a landfill, by microorganisms under anaerobic conditions is a slow process. The aim of the study was to carry out simulations of an aerobic landfill in lysimeters, to determine the influence of aeration rate on the degradation of organic matter present in landfills, and to formulate a mathematical model defining the changes of carbon content in leachate and in gas produced. In this work, simulation of aerobic landfill leachate degradation was carried out in laboratory scale lysimeters with the working volume of 15 L. The changes of BOD5, COD, and ammonium nitrogen concentration during aeration were similar for all aeration rates. During aeration, the BOD5 index decreased by 99.9 %, COD decreased by 95.1 %, and ammonium nitrogen concentration by 93 %. The proposed kinetic model defines the processes of organic carbon content changes in simulated leachate and the quantity of carbon dioxide for aerobic landfill simulation quite well.
Single-longitudinal mode Nd:YVO4/YVO4/KTP green solid state laser
Authors: Sotor J.Z. , Antończak A.J. , Abramski K.M. 
Published: December 2009

AbstractWe present the concept and practical realization of a single frequency, tuneable diode pumped Nd:YVO4/YVO4/KTP microchip laser operating at 532 nm. Theoretical analysis of the single mode operation of such a laser configuration is presented. The single frequency operation has been obtained in a birefringent filter, where an YVO4 beam displacer acts as an ideal polarizer. Experimental results are in good agreement with theoretical analysis. We have obtained stable single frequency operation, tuneable over 0.6 nm in the spectral range around 1064 nm. The laser operated with output power up to 110 mW at 53 nm. The total optical efficiency (808 nm to 532 nm) was 14%.
Allergen Skin Test Reactivity and Serum Total IgE Level in Adult Bronchial Asthmatic Patients
Authors: Parveen Tasmina , Begum Noorzahan , Begum Shelina 
Published: December 2009

Background: Asthma affects more than 100 million people worldwide. Increased morbidity is multifactorial and may include increased exposure to indoor allergens and environmental pollutants, overuse of beta-2 agonist, underuse of anti-inflammatory mediators and limited education about health care. Allergy represents a specific alteration in biologic reactivity mediated by an immunologic mechanism and resulting in an adverse physiologic response. Objective: Some of the type of allergen's sensitivity by skin prick test and serum total IgE level were studied in adult asthmatic patients to observe their relationships. Methods: This study was carried out in the department of Physiology, Bangabandhu Sheik Mujib Medical University, Dhaka and Asthma center,Mohakhali, Dhaka from January 2005 to December 2005. Allergen skin prick tests (SPT) were done by Pepy's skin prick method and serum total IgE level by Enzyme Linked Immunosorbent Assay method on 30 asthmatic patients and 30 age and sex matched control subjects. Data were analyzed statistically by unpaired student's ‘t' test and Chi- squares test. Results: In this study, maximum numbers of asthmatic patients had positive SPT for dust mite which was followed by house dust and by cockroach. Frequency percentage for dust mite was significantly higher (P<0.05) than that of house dust and cockroach. It was also significantly higher in house dust than that of cockroach (P< 0.001). The mean serum total IgE level was significantly higher (P<0.001) in asthmatic adults compared to that of healthy subjects. On the other hand, the association between the positive skin prick tests of all allergens used in this study and elevated serum total IgE were not statistically significant (P >0.05). Conclusion: Therefore , it can be concluded that different allergens like, house dust, dust mite and cockroach are responsible for bronchial asthma in our country which can be detected by SPT. Thus it can be used for identification of type of actual allergens responsible for bronchial asthma which may be a useful measure for earlier detection of allergens and for hyposensitization or desensitization of that patients accordingly with those allergens. Key words: Allergen, IgE, Bronchial asthma. DOI: 10.3329/jbsp.v4i1.4062 J Bangladesh Soc Physiol. 2009 June; 4(1): 1-6
Parasympathetic Nerve Function Status in Postmenopausal Women
Authors: Naher Latifa Afrin Dill , Begum Noorzahan , Begum Shelina , Ferdousi Sultana , Ali Taskina 
Published: December 2009

Background: In postmenopausal women, the risk of cardiovascular diseases gradually increases and alterations in autonomic nerve functions commonly affect cardiac vagal control. Objective: To observe some aspects of parasympathetic nerve function status in apparently healthy post menopausal women. Method: This cross sectional study was carried out in the Department of Physiology Bangabandhu Sheikh Mujib Medical University. In this study, 30 postmenopausal women with age 45 to 60 years were included in group B (study group) and 30 premenopausal women aged 20 to 30 years were taken in group A (control group). They were further divided into group A1(menstrual),A2(follicular), A3(luteal) according to phases of menstrual cycle during which they were studied. Serum estrogen and progesterone levels were measured in postmenopausal women and also during follicular and luteal phases in premenopausal women and were estimated by MEIA technique. To assess parasympathetic nerve function status, three noninvasive cardiovascular reflex tests such as heart rate response to valsalva maneuver, heart rate response to deep breathing and heart rate response to standing were performed in all the subjects. Data were collected by recording ECG in resting conditions. For statistical analysis, unpaired t test and multiple regression analysis was used. Results: In postmenopausal women, serum estrogen and progesterone levels were significantly (p<0.001) lower compared to those of follicular and luteal phases of premenopausal women except progesterone level during follicular phase which was though lower but not statistically significant. Heart rate response to valsalva maneuver were almost similar in all the groups.Heart rate response to deep breathing and heart rate response to standing were significantly lower in group B than those of group A1, A2 and A3 respectively. On regression analysis parasympathetic nerve function in post postmenopausal women showed significant association with estrogen level. Conclusion: From this study it may be concluded that parasympathetic nerve function was lower in postmenopausal women, which may be related to decreased level of estrogen Key Words: Postmenopausal women, Parasympathetic nerve function, Cardiovascular reflex test. DOI: 10.3329/jbsp.v4i1.4064 J Bangladesh Soc Physiol. 2009 June; 4(1): 14-19
Cutting Edge: Basophils Are Transiently Recruited into the Draining Lymph Nodes during Helminth Infection via IL-3, but Infection-Induced Th2 Immunity Can Develop without Basophil Lymph Node Recruitment or IL-3
Authors: Kim Sohee , Prout Melanie , Ramshaw Hayley , Lopez Angel F. , LeGros Graham , Min Booki 
Published: December 2009

Abstract
Basophils are recognized as immune modulators through their ability to produce IL-4, a key cytokine required for Th2 immunity. It has also recently been reported that basophils are transiently recruited into the draining lymph node (LN) after allergen immunization and that the recruited basophils promote the differentiation of naive CD4 T cells into Th2 effector cells. Using IL-3−/− and IL-3Rβ−/− mice, we report in this study that the IL-3/IL-3R system is absolutely required to recruit circulating basophils into the draining LN following helminth infection. Unexpectedly, the absence of IL-3 or of basophil LN recruitment played little role in helminth-induced Th2 immune responses. Moreover, basophil depletion in infected mice did not diminish the development of IL-4–producing CD4 T cells. Our results reveal a previously unknown role of IL-3 in recruiting basophils to the LN and demonstrate that basophils are not necessarily associated with the development of Th2 immunity during parasite infection.
Cutting Edge: HLA-DM–Mediated Peptide Exchange Functions Normally on MHC Class II–Peptide Complexes That Have Been Weakened by Elimination of a Conserved Hydrogen Bond
Authors: Ferrante Andrea , Gorski Jack 
Published: December 2009

AbstractThe mechanism by which HLA-DM (DM) promotes exchange of peptides bound to HLA-DR (DR) is still unclear. We have shown that peptide interaction with DR1 can be considered a folding process as evidenced by cooperativity. However, in DM-mediated ligand exchange, prebound peptide release is noncooperative, which could be a function of the breaking of a critical interaction. The hydrogen bond (H-bond) between β-chain His81 and the peptide backbone at the −1 position is a candidate for such a target. In this study, we analyze the exchange of peptides bound to a DR1 mutant in which formation of this H-bond is impaired. We observe that DM still functions normally. However, as expected of a cooperative model, this H-bond contributes to the overall energetics of the complex and its disruption impacts the ability of the exchange ligand to fold with the binding groove into a stable complex.
On Hankel Forms of Higher Weights: The Case of Hardy Spaces
Authors: Sundhäll Marcus , Tchoundja Edgar 
Published: December 2009

AbstractIn this paper we study bilinear Hankel forms of higher weights on Hardy spaces in several dimensions. (The Schatten class Hankel forms of higher weights on weighted Bergman spaces have already been studied by Janson and Peetre for one dimension and by Sundh¨all for several dimensions). We get a full characterization of Schatten class Hankel forms in terms of conditions for the symbols to be in certain Besov spaces. Also, the Hankel forms are bounded and compact if and only if the symbols satisfy certain Carleson measure criteria and vanishing Carleson measure criteria, respectively.
Goresky–MacPherson Calculus for the Affine Flag Varieties
Authors: Yun Zhiwei 
Published: December 2009

AbstractWe use the fixed point arrangement technique developed by Goresky and MacPherson to calculate the part of the equivariant cohomology of the affine flag variety ℱ ℓ G generated by degree 2. We use this result to show that the vertices of the moment map image of ℱ ℓ G lie on a paraboloid.
Sensor fault detection and isolation for wind turbines based on subspace identification and Kalman filter techniques
Authors: Wei Xiukun , Verhaegen Michel , van Engelen Tim 
Published: December 2009

AbstractThis paper aims at the blade root moment sensor fault detection and isolation issue for three‐bladed wind turbines with horizontal axis. The underlying problem is crucial to the successful application of the individual pitch control system, which plays a key role for reducing the blade loads of large offshore wind turbines. In this paper, a wind turbine model is built based on the closed loop identification technique, where the wind dynamics is included. The fault detection issue is investigated based on the residuals generated by dual Kalman filters. Both additive faults and multiplicative faults are considered in this paper. For the additive fault case, the mean value change detection of the residuals and the generalized likelihood ratio test are utilized respectively. For multiplicative faults, they are handled via the variance change detection of the residuals. The fault isolation issue is proceeded with the help of dual sensor redundancy. Simulation results show that the proposed approach can be successfully applied to the underlying issue. Copyright © 2009 John Wiley & Sons, Ltd.
Nickel(II) complexes bearing pyrazolylimine ligand: synthesis, structure, and catalytic properties for vinyl‐type polymerization of norbornene
Authors: Wang Yuan‐yuan , Li Ben‐xia , Zhu Yu‐zhang 
Published: December 2009

AbstractTwo nickel(II) complexes of {2‐[C3HN2(R1)2‐3,5]}[C(R2)N(C6H3iPr2‐2,6)]NiBr2 (complex 1: R1 = CH3, R2 = 2,4,6‐trimethylphenyl; complex 2: R1 = R2 = Ph) were synthesized and characterized. The solid‐state structure of complex 1 has been confirmed by X‐ray single‐crystal analysis. Activated by methylaluminoxane (MAO), complexes 1 and 2 are capable of catalyzing the polymerization of norbornene with moderate activities [up to 10.56 × 105 gPNBE (mol Ni h)−1] with high molecular weights (Mw⩽13.56 × 105 g mol−1) and molecular weight distributions were around 2. The influences of polymerization parameters such as reaction temperature and Al–Ni molar ratio on catalytic activity and molecular weight of the polynorbornene were investigated in detail. The obtained polynorbornenes were characterized by means of 1H‐NMR and FTIR techniques. The analytical results of polymer structures indicated that the norbornene polymerization is vinyl‐type polymerization rather than ROMP. Copyright © 2009 John Wiley & Sons, Ltd.