bluuebunny/crossref_metadata_2025_split huggingface dataset:
Beam evolution equation with variable coefficients in non‐cylindrical domains
Authors: De Caldas C. S. Q. , Límaco J. , Barreto R. K. 
Published: July 2007

AbstractIn this article, we present results concerning with the existence of global solutions and a rate decay estimate for energy associated with an initial and boundary value problem for a beam evolution equation with variable coefficients in non‐cylindrical domains. Copyright © 2007 John Wiley & Sons, Ltd.
A nonlinear continuous time optimal control model of dynamic pricing and inventory control with no backorders
Authors: Adida Elodie , Perakis Georgia 
Published: July 2007

AbstractIn this paper, we present a continuous time optimal control model for studying a dynamic pricing and inventory control problem for a make‐to‐stock manufacturing system. We consider a multiproduct capacitated, dynamic setting. We introduce a demand‐based model where the demand is a linear function of the price, the inventory cost is linear, the production cost is an increasing strictly convex function of the production rate, and all coefficients are time‐dependent. A key part of the model is that no backorders are allowed. We introduce and study an algorithm that computes the optimal production and pricing policy as a function of the time on a finite time horizon, and discuss some insights. Our results illustrate the role of capacity and the effects of the dynamic nature of demand in the model. © 2007 Wiley Periodicals, Inc. Naval Research Logistics, 2007
Amniocentesis in the third trimester of pregnancy
Authors: O'Donoghue Keelin , Giorgi Laura , Pontello Valentina , Pasquini Lucia , Kumar Sailesh 
Published: July 2007

AbstractBackgroundAmniocentesis in the third trimester, which reduces risks of procedure‐related miscarriage but still allows termination of affected fetuses, may be applicable in some pregnancies. The implications of deferring amniocentesis include complications, delivery before the test and increased amniotic fluid culture failure rates. We investigated the indications, complications, karyotype results and laboratory failure rates of third‐trimester amniocentesis.MethodsWe studied all women who underwent third‐trimester amniocentesis from 2000 to 2006. Data were collected from ultrasound databases, computerised records and individual chart review.ResultsWe reviewed 165 pregnancies that underwent amniocenteses after 28 weeks. Median maternal age at amniocentesis was 32 years and median gestation, 32+2 weeks. Indications included malformation (60/165), soft markers (37/165), maternal request (12/165), and positive screening test (11/165). Of the 49 women(29.7%) who declined second‐trimester amniocentesis, 24.5% had twins and 38.8%, malformations. Amniocentesis was not offered to 116 women: 57/116 (49.1%) third‐trimester referrals, 25/116 (21.5%) diagnosed late and the remainder, low‐risk indications. Fetal karyotype was abnormal in 17 cases (10.3%). Seven women who initially declined amniocentesis had abnormal results compared with one advised to have late amniocentesis. Culture failure rate was 9.7%, however results were obtained by Quantitative fluorescent polymerase chain reaction (QF‐PCR) from 164/165 samples. Complication rate was 1.2%.ConclusionFor late diagnoses and for low‐risk indications, third‐trimester amniocentesis is an acceptable option, especially when utilising QF‐PCR with cytogenetic culture. Copyright © 2007 John Wiley & Sons, Ltd.
Proteomic analysis of protein complexes
Authors: Zhou Ming , Veenstra Timothy D. 
Published: July 2007

AbstractWhile it sometimes does not generate the publicity that biomarker discovery does, the identification of protein complexes may be the most popular use of proteomic technology. The partners a protein interacts with is a key component that describes the function of any protein. Basic research has long appreciated the importance of identifying protein interactions through techniques such as Western blotting and colocalization studies using immunofluorescence microscopy. This appreciation has carried over into the field of proteomics and brought with it the development of tools that increase the capabilities to characterize protein complexes to a far greater scale. While advances in technology have had a huge impact, sample preparation issues related to the isolation of protein complexes remains a critical factor in determining the success of these types of studies.
Dissecting contact potentials for proteins: Relative contributions of individual amino acids
Authors: Buchete N.‐V. , Straub J. E. , Thirumalai D. 
Published: July 2007

AbstractKnowledge‐based contact potentials are routinely used in fold recognition, binding of peptides to proteins, structure prediction, and coarse‐grained models to probe protein folding kinetics. The dominant physical forces embodied in the contact potentials are revealed by eigenvalue analysis of the matrices, whose elements describe the strengths of interaction between amino acid side chains. We propose a general method to rank quantitatively the importance of various inter‐residue interactions represented in the currently popular pair contact potentials. Eigenvalue analysis and correlation diagrams are used to rank the inter‐residue pair interactions with respect to the magnitude of their relative contributions to the contact potentials. The amino acid ranking is shown to be consistent with a mean field approximation that is used to reconstruct the original contact potentials from the most relevant amino acids for several contact potentials. By providing a general, relative ranking score for amino acids, this method permits a detailed, quantitative comparison of various contact interaction schemes. For most contact potentials, between 7 and 9 amino acids of varying chemical character are needed to accurately reconstruct the full matrix. By correlating the identified important amino acid residues in contact potentials and analysis of about 7800 structural domains in the CATH database we predict that it is important to model accurately interactions between small hydrophobic residues. In addition, only potentials that take interactions involving the protein backbone into account can predict dense packing in protein structures. Proteins 2008. © 2007 Wiley‐Liss, Inc.
Preface: phys. stat. sol. (b) 244/8
Authors: Grahn Holger T. , Koch Reinhold , Trampert Achim 
Published: July 2007

AbstractThe present special issue entitled Frontiers in Molecular‐Beam Epitaxy toward Novel Devices has been prepared to honor Klaus H. Ploog on the occasion of his 65th birthday and pays tribute to his long scientific career, during which he performed continuously outstanding research, always at the frontiers of molecular‐beam epitaxy. This issue of physica status solidi (b) consists of 27 contributions from leading scientists around the world covering GaAs‐based heterostructures, dilute nitride alloys with antimony, IV–VI semiconductors and nanocrystals, semiconductor quantum dots, group‐III nitride films and nanocolumns, quantum‐cascade lasers, magnetic materials such as (Ga,Mn)As as well as spin relaxation and spin lifetimes. As emphasized in the laudatio by Gerhard Abstreiter, Klaus Ploog has enormously contributed to each and every one of these fields throughout his career, often resulting in new advances that had a major impact in the fields of in‐situ monitoring of molecular‐beam‐epitaxial growth, semiconductor nanostructures, ferromagnet–semiconductor hybrid structures, and solid state physics.In addition to providing an appropriate tribute to Klaus Ploog's long scientific career, we hope that this issue will stimulate the exploitation of new directions of these emerging and rapidly developing fields. We are sure that all contributors, colleagues, and collaborators join us in wishing Klaus Ploog a very enjoyable retirement with lots of new discoveries not only within but also outside the scientific life. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
The structure and distances in Yule recursive trees
Authors: Feng Qunqiang , Su Chun 
Published: July 2007

AbstractBased on uniform recursive trees, we introduce random trees with the factor of time, which are named Yule recursive trees. The structure and the distance between the vertices in Yule recursive trees are investigated in this paper. For arbitrary time t > 0, we first give the probability that a Yule recursive tree Yt is isomorphic to a given rooted tree γ; and then prove that the asymptotic distribution of ζt,m, the number of the branches of size m, is the Poisson distribution with parameter λ = 1/m. Finally, two types of distance between vertices in Yule recursive trees are studied, and some limit theorems for them are established.© 2007 Wiley Periodicals, Inc. Random Struct. Alg., 2007
A retrospective ESI‐MS/MS analysis of newborn blood spots from 18 symptomatic patients with organic acid and fatty acid oxidation disorders diagnosed either in infancy or in childhood
Authors: Kobayashi H. , Hasegawa Y. , Endo M. , Purevsuren J. , Yamaguchi S. 
Published: July 2007

SummaryTo assess the usefulness of newborn mass screening by ESI‐MS/MS in Japan, an acylcarnitine analysis of blood spots on filter paper from collected from newborn infants at the age of 5 days was retrospectively conducted on 18 cases of inherited metabolic diseases that had already been diagnosed. The patients had organic acid disorders in 8 cases, fatty acid oxidation disorders in 7 cases, and amino acid disorders in 3 cases. The time of onset was from 0 days to 1 year 8 months of age. In 16 out of the 18 cases studied, it was confirmed that the analysis of the blood spots on filter paper collected during the newborn period could detect disorders. One case each of CPT‐2 deficiency and citrin deficiency could not be detected in the newborn period. Regarding CPT‐2 deficiency, the establishment of sufficient nutrition might have interfered with the detection of the disorder because the blood was collected at 5 days of age. The disorders occurred within 1 week after birth in 4 out of 18 cases, 2 of which died at an early stage. Among 13 cases in which the disorders occurred after 1 month, 10 cases were caused by defective metabolism due to infections. The prognoses of inherited metabolic diseases that occur in the early newborn period are limited. However, this study suggests that prognoses of metabolic disorders that occur after the newborn period can expect to be improved by early detection.
The association between isoflavone and lower urinary tract symptoms in elderly men
Authors: Wong Samuel Y. S. , Lau Winny W. Y. , Leung Ping C. , Leung Jason C. S. , Woo Jean 
Published: July 2007

The objective of the present study is to explore the association between lower urinary tract symptoms (LUTS) and dietary isoflavone in elderly men. In a large prospective cohort of 2000 Chinese men, the association between dietary isoflavone and LUTS were studied using standardized structured questionnaires. Dietary intake was assessed by a modified version of the Block FFQ. LUTS were assessed by the Chinese version of the International Prostatic Symptoms Score. Demographic, lifestyle and other medical information were also collected and were adjusted for in the analysis. After excluding 299 men with history of bladder surgery, bladder or prostate cancer or who were current users of medication for urinary problems, the association between LUTS and dietary isoflavone was explored. A total of 96·2 % of subjects reported some consumption of genistein, glycitein or daidzein. In ordinal multinominal logistic regression, subjects with dietary total isoflavone of more than 5·1 mg were significantly less likely to suffer from more severe LUTS (dietary intake from 5·1 to 9·5 mg: OR 0·59; 95 % CI 0·44, 0·80; from 9·6 to 14·3 mg: OR 0·81; 95 % CI 0·61, 1·09; from 14·4 to 21·7 mg: OR 0·68; 95 % CI 0·51, 0·92; 21·8 mg and above: OR 0·73; 95 % CI 0·54, 0·98) after adjustment for covariates. In this cross-sectional study, we showed a strong inverse association between dietary intake of isoflavone and the risk of LUTS.
Potential effects of herbal medicines and nutritional supplements on coagulation in ENT practice
Authors: Javed F , Golagani A , Sharp H 
Published: July 2007

AbstractBackground:Herbal remedies and other natural supplements have become popular alternative medical therapy. Patients using these products may present to ENT surgeons with epistaxis or with unexpected, excessive peri-operative bleeding.Objective:The purpose of this review was to consolidate the available data regarding herb–drug interactions and the direct effects of herbal medicines and nutritional supplements in isolation, regarding disturbance in haemostasis, so as to emphasise their individual importance.Method:A literature review was performed using the Medline (PubMed) and UKMi databases.Results:Searches of these databases revealed 24 herbal products with documented interactions with anticoagulants and 98 herbal products with theoretical interactions with the coagulation system. Herbal products with effects on coagulation when given alone were also documented.Conclusion:When encountering patients presenting with epistaxis, or in the elective surgical setting, a thorough enquiry about the use of herbal medicines is of great importance.
Rhinitis symptoms and quality of life in patients with chronic perennial rhinitis treated with desloratadine
Authors: Lam H C K , Tong M C F , Hasselt C A Van 
Published: July 2007

AbstractObjective:To evaluate the outcome and the change in quality of life of patients with chronic rhinitis after treatment with desloratadine.Study design:A prospective, open-label, non-blinded, non-randomised study of patients in a secondary and tertiary ENT referral centre.Methods:Chinese patients with chronic rhinitis were recruited. The patients were assessed by a questionnaire that included rhinitis symptoms score and SF-36 health survey components. Endoscopic assessment was performed with a rigid nasoendoscope and scored according to the modified endoscopic appearance score of Lund and Kennedy. A 12-week course of desloratadine 5 mg daily was prescribed. Patients were re-evaluated after treatment. A total of 47 subjects completed the study.Results:There were significant reductions in median rhinitis symptoms score, from six to five (p < 0.001), and in median endoscopic appearance score, from five to three (p < 0.001). Patients' general health perception was also improved after treatment (p == 0.022).Conclusion:Desloratadine may be an effective treatment which provides symptomatic relief and improves the quality of life in patients with chronic rhinitis.
Ultrasound-guided botulinum toxin A injection: an alternative treatment for dribbling
Authors: Marina M B , Sani A , Hamzaini A H , Hamidon B B 
Published: July 2007

AbstractDribbling (sialorrhoea) affects about 10 per cent of patients with chronic neurological disease. The variety of treatments currently available is unsatisfactory. This study was a clinical trial of the efficacy of ultrasound-guided, intraglandular injection of botulinum toxin A for dribbling, performed within the otorhinolaryngology department of the National University of Malaysia. Both pairs of parotid and submandibular glands received 25 U each of botulinum toxin A.Twenty patients were enrolled in the study. The median age was 15 years. All 20 patients (or their carers) reported a distinct improvement in symptoms after injection. Using the Wilcoxon signed rank test, there were significant reductions in dribbling rating score, dribbling frequency score, dribbling severity score, dribbling visual analogue score and towel changes score, comparing pre- and post-injection states (p<0.001). There were no complications or adverse effects during or after the injection procedure.Intraglandular, major salivary gland injection of botulinum toxin A is an effective treatment to reduce dribbling. Ultrasound guidance enhances the accuracy of this procedure and minimises the risk of complication.
Scutula tuberculosa, the correct name of the Scutula growing on Solorina spp., with a key to Scutula s. str. in the Northern Hemisphere
Authors: WEDIN Mats , IHLEN Per G. , TRIEBEL Dagmar 
Published: July 2007

Abstract:The taxonomic and nomenclatural status of the common Scutula (Ramalinaceae, Lecanorales, Ascomycota) parasitizing species of Solorina (Peltigeraceae, Lecanorales) is clarified. The type of Biatorina tuberculosa Th. Fr., which, according to the protologue, was described from a Peltigera, is actually growing on Solorina saccata, and the correct name for this species is here shown to be Scutula tuberculosa (Th. Fr.) Rehm. Lectotypes are designated for Lecidea solorinaria Nyl., Scutula krempelhuberi Körb. and Lecidea solorinicola Vain. Notes on the taxonomy and classification of the genus are given, and a key to the species of Scutula s. str. in the Northern Hemisphere is presented. Scutula tuberculosa is reported as new to Asia and North America.
The genus Chrysothrix in Australia
Authors: ELIX John A. , KANTVILAS Gintaras 
Published: July 2007

Abstract:Chrysothrix occidentalis Elix & Kantvilas, C. palaeophila Kantvilas & Elix and C. tchupalensis Elix & Kantvilas are described as new to science. In addition, the new combination Chrysothrix sulphurella (Räsänen) Kantvilas & Elix is proposed, C. granulosa G. Thor is reported for the first time from Australia (including Tasmania) and New Zealand, and C. xanthina (Vain.) Kalb for the first time from Tasmania, Norfolk Island and New Zealand. A key to the Australian species of Chrysothrix is presented. Chemical data on non-Australasian species of the genus are also provided.
Tourism, Development and Poverty Reduction in Guizhou and Yunnan
Authors: Donaldson John A 
Published: July 2007

AbstractHow did the differing strategies adopted to develop tourism in Guizhou and Yunnan affect patterns of economic development and poverty reduction? The answer is paradoxical. Both provincial governments incorporated tourism as part of their overall development strategies, but their tourism sites were distributed and structured strikingly differently. In Yunnan, although tourism contributed to rapid economic growth, it did not reduce rural poverty as much as might be expected from a large rural-based industry. By contrast, Guizhou's relatively small-scale tourism industry, although not contributing significantly to growth, was distributed largely in poor areas and was structured to allow poor people to participate directly. The conclusions have implications for our understanding of provincial development strategy in China and ways that tourism can be used for development and poverty reduction.
Evidence for Decreasing Helicoverpa zea Susceptibility to Pyrethroid Insecticides in the Midwestern United States
Authors: Hutchison W. D. , Burkness E. C. , Jensen B. , Leonard B. R. , Temple J. , Cook D. R. , Weinzierl R. A. , Foster R. E. , Rabaey T. L. , Flood B. R. 
Published: July 2007

The corn earworm (CEW), Helicoverpa zea (Boddie), is a highly mobile pest of numerous field and vegetable crops in much of North America. In the Midwestern United States, CEW is a voracious pest of several high-value vegetable crops, including sweet corn, tomatoes, and snap beans, and seed corn grown for the field corn industry. Historically, synthetic pyrethroid insecticides have been cost-effective and have provided excellent control of CEW, with control of larvae in sweet corn exceeding 90%. However, since 2000 pyrethroids have only provided 35 to 45% control in field tests conducted in the Midwest, as indicated by small-plot sweet corn efficacy trials. During 2005, the four most commonly used pyrethroids averaged only 19.3 to 37.3% control of CEW (mean of 5 trials in Minnesota, Wisconsin, Illinois, and Indiana). In addition, the survival of moths exposed to the standard pyrethroid, cypermethrin, using the Adult Vial Test (AVT), indicated high survival rates (44 to 66% at 5 μg cypermethrin and up to 45% survival at 10 μg). These levels are similar to, or higher than recent AVT results from Louisiana and Texas. These states reflect two possible “source” regions of late-season CEW that likely migrate north to the Midwestern states each summer. These results, including the stability of resistance each year in the Midwest, are discussed within the context of developing and expanding a North American resistance monitoring and management network. Accepted for publication 3 June 2007. Published 19 July 2007.
Neuronal Markers in Allergic Rhinitis: Expression and Correlation With Sensory Testing
Authors: O'Hanlon Stephen , Facer Paul , Simpson Karen D. , Sandhu Guri , Saleh Hesham A. , Anand Praveen 
Published: July 2007

AbstractIntroduction: Although the role of immunoglobulin E‐mediated hypersensitivity reactions in allergic rhinitis is well known, the relative contribution of sensory nerves to the symptoms of rhinitis is uncertain. This study looked at the level of specific neuronal markers including the nerve marker protein gene product 9.5 (PGP 9.5), sensory and autonomic neuropeptides, the capsaicin/heat receptor TRPV1, and nerve growth factor (NGF) in patients with allergic rhinitis and controls and their correlation with nasal sensitivity.Materials and Methods: Forty patients (23 controls, 17 rhinitis) having nasal surgery were recruited. Nasal sensitivity was tested using graded monofilaments. Inferior turbinate biopsies were collected and studied using immunohistology, with measurement of nerve fibers by direct observation or computerized image analysis.Results: Nerve fibers (PGP 9.5) in the epithelium, subepithelium, and glandular/vascular regions were significantly increased in allergic rhinitis (P = .037, <.01, and .04, respectively), as were subepithelial and glandular/vascular fibers immunoreactive for neuropeptide substance P (P = .04 subepithelium; .02 glandular/vascular) and neuropeptide tyrosine (P < .01 glandular/vascular), markers for sensory and sympathetic nerves, respectively. TRPV1 epithelial fiber counts were higher in rhinitis, but this was not statistically significant. Epithelial NGF immunoreactivity (% area) was significantly increased in rhinitis (P = .027). Nasal sensitivity was correlated significantly with PGP 9.5 subepithelial innervation (control touch P = .023, irritation P = .046; rhinitis touch P = .042, irritation P = .043). A correlation was also observed between epithelial NGF and subepithelial PGP 9.5 innervation, which included all subjects (P = .044).Conclusion: The increased number and specific phenotypical changes of sensory nerves may play a role in nasal hypersensitivity and provide new targets for the treatment of rhinitis.
Light and shadows in the iron chelation treatment of haematological diseases
Authors: Maggio Aurelio 
Published: July 2007

SummaryThis review outlines the main chelator groups studied to date, and the evidence for their clinical effectiveness. For each treatment, the strength of evidence was documented according to the guidelines from the American College of Cardiology and the American Heart Association. Three main haematological diseases were considered as models: thalassaemia major, sickle‐cell disorders and myelodysplasia. Although the data in the literature do not allow firmly evidence‐based conclusions, the findings suggest that in thalassaemia major: (i) deferoxamine remains the drug of choice for chelation treatment; (ii) if there is deferoxamine intolerance or a change of treatment is suggested, the options are deferiprone or, if the liver iron concentration is high, deferasirox treatment; and (iii) if the ferritin level is >2500 μg/l and liver iron concentation is >7 mg/g/dry weight, continuous subcutaneous (s.c.) or intravenous (i.v.) deferoxamine, or combined treatment with deferiprone and deferoxamine is advised. In case of heart failure, there is currently more solid documentation to support continuous s.c. or i.v. deferoxamine treatment than combined treatment with deferiprone and deferoxamine. However, more recent data in the literature suggest that the latter could be a satisfactory alternative. Finally, if iron chelation is required for sickle‐cell disorders or myelodysplastic syndromes, the current data support the use of deferoxamine treatment.