bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prospective follow‐up study of chronic polyneuropathy of undetermined cause
Authors: Jann Stefano , Beretta Sandro , Bramerio Manuela , Defanti Carlo Alberto 
Published: August 2002

AbstractForty consecutive patients with chronic sensorimotor polyneuropathy of undetermined cause were followed to determine disease progression and prognosis. They had had neurological symptoms for at least 1 year before presentation. Neurophysiological examination in all patients showed chronic axonal degeneration, which was confirmed by sural nerve biopsy. Patients were reviewed every 3 months. Laboratory tests were performed every 6 months for the first 2 years and then annually. Neurophysiological examination was performed annually in all patients. Patients were followed up for at least 4 years. In no instance was a possible etiological factor detected during follow‐up. The clinical and electrophysiological findings had a slowly progressive course. We suggest that patients with a chronic polyneuropathy of undetermined cause despite detailed investigations do not require further extensive and expensive laboratory tests and neurophysiological studies during follow‐up. © 2001 John Wiley & Sons, Inc. Muscle Nerve 24: 1197–1201, 2001
Solutions of pore pressure build up due to progressive waves
Authors: Cheng L. , Sumer B. M. , Fredsøe J. 
Published: August 2002

AbstractThe analytical solution of soil pore pressure accumulations due to a progressive wave is examined in detail. First of all, the errors contained in a published analytical solution for wave‐induced pore pressure accumulation are addressed, and the correct solution is presented in a more general form. The behaviour of the solution under different soil conditions is then investigated. It is found that the solution for deep soil conditions is sensitive to the soil shear stress in the top thin layer of the soil. However the solution is significantly influenced by the shear stress in the thin layer of soil near the impermeable base, for shallow and finite depth soil conditions. It is also found that a small error in the soil shear stress can lead to a large error in the accumulated pore pressure. An error analysis reveals the relationships between the accuracy of the pore pressure accumulation and the accuracy of the soil shear stress. A numerical solution to the simplified Biot consolidation equation is also developed. It is shown that the error analysis is of significant value for the numerical modelling of pore pressure buildup in marine soils. Both analytical and numerical examples are given to validate the error estimation method proposed in the present paper. Copyright © 2001 John Wiley & Sons, Ltd.
Novel UNC‐44 AO13 ankyrin is required for axonal guidance in C. elegans, contains six highly repetitive STEP blocks separated by seven potential transmembrane domains, and is localized to neuronal processes and the periphery of neural cell bodies
Authors: Otsuka Anthony J. , Boontrakulpoontawee Pratumtip , Rebeiz Natalie , Domanus Marc , Otsuka Dawn , Velamparampil Nena , Chan Sabrina , Wyngaerde Marshall Vande , Campagna Sarah , Cox Andrea 
Published: August 2002

AbstractConventional ankyrins are cortical cytoskeletal proteins that form an ankyrin‐spectrin meshwork underlying the plasma membrane. We report here the unusual structure of a novel ankyrin (AO13 ankyrin, 775,369 Da, 6994 aa, pI = 4.45) that is required for proper axonal guidance in Caenorhabditis elegans. AO13 ankyrin contains the ANK repeat and spectrin‐binding domains found in other ankyrins, but differs from all others in that the acidic carboxyl region contains six blocks of serine/threonine/glutamic acid/proline rich (STEP) repeats separated by seven hydrophobic domains. The STEP repeat blocks are composed primarily of sequences related to ETTTTTTVTREHFEPED(E/D)XnVVESEEYSASGSPVPSE (E/K)DVE(H/R)VI, and the hydrophobic domains contain sequences related to PESGEESDGEGFGSKVLGFAKK[AGMVAGGVVAAPVALAAVGA]KAAYDALKKDDDEE, which includes a potential transmembrane domain (in brackets). Recombinant protein fragments of AO13 ankyrin were used to prepare polyclonal antisera against the spectrin‐binding domain (AO271 Ab), the conventional ankyrin regulatory domain (AO280 Ab), the AO13 ankyrin STEP domain (AO346 Ab), the AO13 ankyrin STEP + hydrophobic domain (AO289 Ab), and against two carboxyl terminal domain fragments (AO263 Ab and AO327 Ab). Western blot analysis with these Ab probes demonstrated multiple protein isoforms. By immunofluorescence microscopy, the antispectrin‐binding and regulatory domain (AO271 and AO280) antibodies recognized many cell types, including neurons, and stained the junctions between cells. The AO13 ankyrin‐specific (AO289 and AO346) antibodies showed a neurally restricted pattern, staining nerve processes and the periphery of neural cell bodies. These results are consistent with a role for AO13 ankyrin in neural development. © 2002 Wiley Periodicals, Inc. J Neurobiol 50: 333–349, 2002; DOI 10.1002/neu.10036
A Lanczos‐type algorithm for theQRfactorization of regular Cauchy matrices
Authors: Fasino Dario , Gemignani Luca 
Published: August 2002

AbstractWe present a fast algorithm for computing theQRfactorization of Cauchy matrices with real nodes. The algorithm works for almost any input matrix, does not require squaring the matrix, and fully exploits the displacement structure of Cauchy matrices. We prove that, if the determinant of a certain semiseparable matrix is non‐zero, a three term recurrence relation among the rows or columns of the factors exists. Copyright © 2002 John Wiley & Sons, Ltd.
A new numerical algorithm for sub‐optimal control of earthquake excited linear structures
Authors: Bakioglu Mehmet , Aldemir Unal 
Published: August 2002

AbstractExact optimal classical closed–open‐loop control is not achievable for the buildings under seismic excitations since it requires the whole knowledge of earthquake in the control interval. In this study, a new numerical algorithm for the sub‐optimal solution of the optimal closed–open‐loop control is proposed based on the prediction of near‐future earthquake excitation using the Taylor series method and the Kalman filtering technique. It is shown numerically that how the solution is related to the predicted earthquake acceleration values. Simulation results show that the proposed numerical algorithm are better than the closed‐loop control and the instantaneous optimal control and proposed numerical solution will approach the exact optimal solution if the more distant future values of the earthquake excitation can be predicted more precisely. Effectiveness of the Kalman filtering technique is also confirmed by comparing the predicted and the observed time history of NS component of the 1940 El Centro earthquake. Copyright © 2001 John Wiley & Sons, Ltd.
Determination of an optimal regularization factor in system identification with Tikhonov regularization for linear elastic continua
Authors: Park Hyun Woo , Shin Soobong , Lee Hae Sung 
Published: August 2002

AbstractThis paper presents a geometric mean scheme (GMS) to determine an optimal regularization factor for Tikhonov regularization technique in the system identification problems of linear elastic continua. The characteristics of non‐linear inverse problems and the role of the regularization are investigated by the singular value decomposition of a sensitivity matrix of responses. It is shown that the regularization results in a solution of a generalized average between the a priori estimates and the a posteriori solution. Based on this observation, the optimal regularization factor is defined as the geometric mean between the maximum singular value and the minimum singular value of the sensitivity matrix of responses. The validity of the GMS is demonstrated through two numerical examples with measurement errors and modelling errors. Copyright © 2001 John Wiley & Sons, Ltd.
A Case Study in Implementing Emotional Intelligence Programs in Organizations
Authors: Cherniss Cary , Caplan Robert D. 
Published: August 2002

AbstractSome may still scoff at the apparent “softness” of the concept of emotional intelligence. But,
way back before the term had entered the popular vocabulary, American Express Financial Advisors benefited from
recognizing the role of emotional intelligence in business success. And the story of how the organization went
about this groundbreaking work can offer a model for other early adopters of unconventional and passing
solutions. It especially illustrates the critical need for leadership commitment in major change efforts.
© 2001 John Wiley & Sons, Inc.
Korean American health insurance and health services utilization¶
Authors: Ryu Hosihn , Young Wendy B. , Park Changgi 
Published: August 2002

AbstractThe purpose of this ethnic group study was to describe the unique pattern of Korean Americans, as compared with the aggregate of Asian Americans, for: (a) the predisposing, enabling, and need factors for health service utilization, focusing specifically on the role of health insurance coverage; and (b) predictors of health insurance coverage. Using the behavioral model for health service utilization, data were selected from the 1992 National Health Insurance Survey (NHIS, 1994) for Korean Americans (n = 345) and Asian Americans (n = 3,059). Results differed between the Korean American group and the Asian American group. Health insurance coverage was the strongest predictor of Korean American utilization, and need factors lacked significance, suggesting that uninsured Korean Americans have less access regardless of need. For the aggregate Asian American group, need factors tempered the influence of health insurance on utilization. Results of this type of study may be helpful for designing and implementing health care services tailored for specific ethnic at‐risk markets. © 2001 John Wiley & Sons, Inc. Res Nurs Health 24:494–505, 2001
Quality of life of elderly patients after treatment in the ICU
Authors: Kleinpell Ruth M. , Ferrans Carol E. 
Published: August 2002

AbstractThe purpose of this study was to determine the impact of intensive care unit (ICU) treatment on quality of life (QOL) outcomes for critically ill elderly patients 4–6 months after ICU discharge. A mean overall score of 21.4 (SD=6.3) was obtained with the Quality of Life Index (Ferrans & Powers, 1985), indicating that all the ICU survivors in the sample (N=164) reported good QOL and were satisfied with areas of life that were important to them. Greater social support, better perceived health status, fewer days of hospitalization, and a hospital readmission since discharge were associated with higher QOL (R2=.51). This sample of elderly ICU survivors maintained a good QOL after their critical illness regardless of age. © 2002 Wiley Periodicals, Inc. Res Nurs Health 25:212–221, 2002
Patterns of dental wear in the early Maori dentition
Authors: Kieser J.A. , Dennison K.J. , Kaidonis J.A. , Huang D. , Herbison P.G.P. , Tayles N.G. 
Published: August 2002

AbstractThe levels of tooth wear were surveyed in 50 pre‐contact Maori skulls (23 of them female) from New Zealand. In addition to a generalized tooth wear index, we evaluated occlusal wear for erosion and abrasion. Occlusal microwear was also investigated using scanning electron microscopy (SEM) images and, finally, the occlusal slope was determined at the level of the first molar teeth. The general pattern of wear was one of severe occlusal reduction with no significant differences between males and females. Both silicone impressions and SEM views confirmed a large component (30%) of erosion. While most individuals had flat wear planes, 33% of males and 44% of females showed reversed Monson's curves. Accentuated Monson's curves were found in 23.8% of males. While these results confirm early studies of the excessive wear experienced by pre‐contact Maori, our study shows for the first time that erosion played a significant role in the dental wear of these people. Copyright © 2001 John Wiley & Sons, Ltd.
An application of robust control technique to manufacturing systems with uncertain processing time
Authors: Boukas E. K. , Shi P. , Agarwal R. K. 
Published: August 2002

AbstractThis paper studies the inventory control problem for a production system with uncertain processing time and delay in control. First, the stabilization of the delayed system is analysed. Then, a controller is designed such that a disturbance attenuation of the system is achieved. The problem of robust control of the system with parametric uncertainty is also investigated. Linear matrix inequality approach is employed to solve the above problems. A numerical example is given to show the potential of the proposed techniques. Copyright © 2000 John Wiley & Sons, Ltd.
Optimal and sub‐optimal control in Dengue epidemics
Authors: Caetano Marco Antonio Leonel , Yoneyama Takashi 
Published: August 2002

AbstractThis work concerns the application of the optimal control theory to Dengue epidemics. The dynamics of this insect‐borne disease is modelled as a set of non‐linear ordinary differential equations including the effect of educational campaigns organized to motivate the population to break the reproduction cycle of the mosquitoes by avoiding the accumulation of still water in open‐air recipients. The cost functional is such that it reflects a compromise between actual financial spending (in insecticides and educational campaigns) and the population health (which can be objectively measured in terms of, for instance, treatment costs and loss of productivity). The optimal control problem is solved numerically using a multiple shooting method. However, the optimal control policy is difficult to implement by the health authorities because it is not practical to adjust the investment rate continuously in time. Therefore, a suboptimal control policy is computed assuming, as the admissible set, only those controls which are piecewise constant. The performance achieved by the optimal control and the sub‐optimal control policies are compared with the cases of control using only insecticides when Breteau Index is greater or equal to 5 and the case of no‐control. The results show that the sub‐optimal policy yields a substantial reduction in the cost, in terms of the proposed functional, and is only slightly inferior to the optimal control policy. Copyright © 2001 John Wiley & Sons, Ltd.
The Economic impacts of the tobacco settlement
Authors: Cutler David M. , Gruber Jonathan , Hartman Raymond S. , Landrum Mary Beth , Newhouse Joseph P. , Rosenthal Meredith B. 
Published: August 2002

AbstractRecent litigation against the major tobacco companies culminated in a master settlement agreement
(MSA) under which the participating companies agreed to compensate most states for Medicaid expenses.
Here the terms of the settlement are outlined and its economic implications analyzed using data from
Massachusetts. The financial compensation to Massachusetts (and other states) under the MSA is
substantial. However, this compensation is dwarfed by the value of the health impacts induced by the settlement.
Specifically, Medicaid spending will fall, but only by a modest amount. More importantly, the value of health
benefits ($65 billion through 2025 in 1999 dollars) from increased longevity is an order of
magnitude greater than any other impacts or payments. The net efficiency implications of the settlement turn
mainly on a comparison of the value of these health benefits relative to a valuation of the foregone pleasure of
smoking. To the extent that the value of the health benefits is not offset by the value of the pleasure
foregone, the economic impacts of the MSA will include a share of these health benefits. © 2002 by the
Association for Public Policy Analysis and Management.
Preparation and EIS studies on polyimide/polyaniline blend film for corrosion protection
Authors: Liangcai Lei , Ming Wu , Huoming Shu , Haiying Li , Qingdong Qiao , Yuanlong Du 
Published: August 2002

AbstractA corrosion protection coating from polyimide/polyaniline (PI/PAn) blend was prepared by solution blending and the anti‐corrosion property of this coating was studied with electrochemical impedance spectroscopy technique. The results show that PAn can react with PI to form chemical bonds between these two polymers and these bonds keep these two polymers as a miscible system. The corrosion protection property of this coating increases with a growth in the PAn component and an excellent anti‐corrosion effect emerges when the PAn content reaches 10–15%. The reason why PAn can improve the anti‐corrosion property is that PI/PAn blend can form a dense and non‐porous polymer film that would prevent some corrupting components from access to the underlying steel surface. And also, PAn may serve as a corrosion inhibiting agent to scavenge any protons and foster a local basic surface environment. Copyright © 2001 John Wiley & Sons, Ltd.
Cellular and humoral mechanisms of osteoclast formation and bone resorption in Gorham–Stout disease
Authors: Hirayama T. , Sabokbar A. , Itonaga I. , Watt‐Smith S. , Athanasou N. A. 
Published: August 2002

AbstractGorham–Stout disease (GSD) is a rare, massively osteolytic condition which is associated with increased vascularity and an increase in osteoclast numbers. To determine the cellular and humoral mechanisms underlying the increase in osteoclast numbers and osteolysis in GSD, this study analysed circulating osteoclast precursor numbers and sensitivity to osteoclastogenic factors in a GSD patient and age/sex‐matched controls. Monocytes were cultured with M‐CSF (25 ng/ml) and RANKL (30 ng/ml) and osteoclast formation was assessed in terms of the formation of TRAP+ and VNR+ multinucleated cells and the extent of lacunar resorption. There was no increase in the proportion of circulating osteoclast precursors in GSD relative to controls, but lacunar resorption was consistently greater in GSD monocyte cultures. Increased osteoclast formation in GSD was noted when monocytes were incubated with IL‐1β (1 ng/ml), IL‐6/sIL‐6R (100 ng/ml), and TNFα (10 ng/ml). An increase in osteoclast differentiation and bone resorption was also noted in control monocyte cultures in the presence of GSD serum. These results indicate that the increase in osteoclast formation in GSD is due not to an increase in the number of circulating osteoclast precursors, but rather to an increase in the sensitivity of these precursors to humoral factors which promote osteoclast formation and bone resorption. Copyright © 2001 John Wiley & Sons, Ltd.
Phytoecdysteroid profiles in seeds of Sida spp. (Malvaceae)
Authors: Dinan Laurence , Bourne Pauline , Whiting Pensri 
Published: August 2002

AbstractProcedures are presented for the assessment of the phytoecdysteroid profiles in small plant samples (ca. 25 mg), using seeds of Sida spp. as an example. The procedures are suitable for the analysis of minute or valuable samples and provide copious information for chemotaxonomic purposes. Methanolic extracts of the plant material, after partioning against hexane, were separated by reversed‐phase gradient HPLC monitored by PAD, RIA and bioassay. Aliquots of the fractions were also treated with Helix pomatia hydrolases, followed by RIA and bioassay, in order to assess the presence of hydrolysable ecdysteroid conjugates. Further information could also be obtained by separation of samples using normal‐phase gradient HPLC. Among 11 species of Sida examined, seed extracts of S. acuta (=S.carpinifolia) and S. rhombifolia were found to contain significant amounts of ecdysteroids, seed extracts of S. filicaulis contained only moderate levels, whilst the remaining species showed no detectable levels of ecdysteroids. The ecdysteroid profiles of the extracts of the three positive species were significantly different, demonstrating that phytoecdysteroids have chemotaxonomic value in this genus. Copyright © 2001 John Wiley & Sons, Ltd.
HPLC‐UV and HPLC‐positive‐ESI‐MS analysis of the diterpenoid fraction from caper spurge  (Euphorbia lathyris) seed oil
Authors: Bicchi Carlo , Appendino Giovanni , Cordero Chiara , Rubiolo Patrizia , Ortelli Didier , Veuthey Jean‐Luc 
Published: August 2002

AbstractCaper spurge (Euphorbia lathyris L.) seed oil contains a series of diterpenoids known as Euphorbia factors, or L‐factors, L1–L9. They are esters of several polyols (lathyrol, epoxylathyrol, hydroxylathyrol and ingenol) and account for about 3–5% of the oil. The percentage of ingenol‐based L‐factors is very low, less than 5% of the diterpenoid fraction, but some of them (factors L5 and L6) are responsible for the irritant and co‐carcinogenic activities of the oil. This paper reports an HPLC‐UV and HPLC‐positive‐ESI‐MS analysis of the diterpenoid fraction of caper spurge seed oil before and after selective hydrolysis of ingenol‐based L‐factors. Separation of lathyrane polyols and esters, and ingenol and its esters was achieved using a chromatographic system consisting of a C18 stationary phase and acetonitrile:water as mobile phase. A new macrocyclic constituent, the deoxy Euphorbia factor L1, was identified in the oil. Copyright © 2001 John Wiley & Sons, Ltd.
Prenatal diagnosis of long QT syndrome using magnetocardiography: a case report and review of the literature
Authors: Hosono Takayoshi , Kawamata Kazuya , Chiba Yoshihide , Kandori Akihiko , Tsukada Keiji 
Published: August 2002

AbstractObjectivesTo investigate the usefulness of magnetocardiography (MCG) in the prenatal diagnosis of fetal long QT syndrome.MethodsFetal MCG was recorded in a case of fetal long QT syndrome suspected in utero. The literature on the prenatal diagnosis of fetal long QT syndrome was also reviewed.ResultsThe MCG was performed at 36 weeks' gestation because sustained fetal bradycardia of 110–120 bpm was detected by cardiotocography. The 64‐channel MCG revealed a prolonged fetal corrected QT‐interval of 0.57 s. The postnatal electrocardiogram coincided with prenatal MCG.ConclusionAn accumulation of cases of prenatally diagnosed long QT syndrome using MCG indicates that MCG may be the most reliable tool for the prenatal diagnosis of long QT syndrome. Copyright © 2002 John Wiley & Sons, Ltd.
Intrauterine left chamber myocardial infarction of the heart and hydrops fetalis in the recipient fetus due to twin‐to‐twin transfusion syndrome
Authors: Marton Tamás , Hajdú Júlia , Hruby Ervin , Papp Zoltán 
Published: August 2002

AbstractA rare complication of twin‐to‐twin transfusion syndrome (TTTS) is described: myocardial infarction of the recipient fetus. Myocardial infarction and hydrops are considered to be consequences of hypertension in the recipient. No other organs were affected. Pathological signs of intrauterine hypertension were estimated by the thickness of vessel walls and signs of hypertrophied myocardial cells. In the heart of the recipient fetus there was a chronic myocardial infarction near the apex cordis on the anterior wall with an aneurysm 4×5 mm in diameter. Diagnosis was based on light microscopic examination. The poor myocardial systolic function resulted in hydrops. Since the mother was administered β sympathomimetics in therapeutic doses the contribution of the drug to the myocardial infarction is uncertain, but we would like to suggest this as a possible adverse effect in TTTS.The present case is the first reported myocardial infarction in connection with the syndrome. Copyright © 2002 John Wiley & Sons, Ltd.
An umbilical cord teratoma in a 17‐week‐old fetus
Authors: Satgé Daniel C. L. , Laumond Marie‐Annick , Desfarges François , Chenard Marie‐Pierre R. 
Published: August 2002

AbstractA therapeutic abortion was conducted on a 17‐week‐old male fetus with a large umbilical cord teratoma associated with an exomphalos. A review of the literature revealed ten other cases of umbilical cord teratoma and shows that these tumors have a very polymorphic presentation. Four fetuses and infants died from various causes indicating that there is a need for close follow‐up of pregnancies with umbilical cord teratoma. Copyright © 2001 John Wiley & Sons, Ltd.