bluuebunny/crossref_metadata_2025_split huggingface dataset:
Alternative proofs of linear response for piecewise expanding unimodal maps
Authors: BALADI VIVIANE , SMANIA DANIEL 
Published: March 2009

AbstractWe give two new proofs that the Sinai–Ruelle–Bowen (SRB) measure t↦μt of a C2 path ft of unimodal piecewise expanding C3 maps is differentiable at 0 if ft is tangent to the topological class of f0. The arguments are more conceptual than the original proof of Baladi and Smania [Linear response formula for piecewise expanding unimodal maps. Nonlinearity21 (2008), 677–711], but require proving Hölder continuity of the infinitesimal conjugacy α (a new result, of independent interest) and using spaces of bounded p-variation. The first new proof gives differentiability of higher order of ∫ ψ dμt if ft is smooth enough and stays in the topological class of f0 and if ψ is smooth enough (a new result). In addition, this proof does not require any information on the decomposition of the SRB measure into regular and singular terms, making it potentially amenable to extensions to higher dimensions. The second new proof allows us to recover the linear response formula (i.e. the formula for the derivative at 0) obtained by Baladi and Smania, by an argument more conceptual than the ‘brute force’ cancellation mechanism used by Baladi and Smania.
Ag nanocluster synthesis by laser ablation in Ar atmosphere: A plume dynamics analysis
Authors: Fazio E. , Neri F. , Ossi P.M. , Santo N. , Trusso S. 
Published: March 2009

AbstractAg thin films were deposited by pulsed laser ablation in a controlled Ar atmosphere. The deposition process was performed at different Ar pressure values in the range between 10 and 100 Pa to investigate the influence of ambient gas pressure on the plasma expansion dynamics and on the film structural properties. Position, velocity and volume of the laser generated plasma as functions of time were obtained by time resolved fast photography. The morphological properties of the films were investigated by transmission electron microscopy which shows that film growth proceeds via aggregation on the substrates of nanoclusters formedin the expandingplume. The formation of nanoparticles takes place as a consequence of plasma confinement induced by the interaction with ambient gas species. Data from fast photography analysis were used as input parameters to calculate the size of the nanoparticles using a model that takes into account the collisional nature of the laser generated silver plasma.
Validation of EGNOS Helicopter Approach Procedures to North Sea Oil Platforms
Authors: Valner J. , Leighton S. J. 
Published: March 2009

A version of this paper was first presented at the Royal Institute of Navigation NAV 08 Conference held at Church House, Westminster, London in October 2008.The North Sea oil platforms are reliant on regular and reliable helicopter operations for the movement of staff and supplies. The environment is challenging and there have been six fatal accidents incurring the loss of 79 lives since the mid-1970s. The need for accurate and reliable helicopter approach procedures has been identified and this paper reports the results of a feasibility study into the use of EGNOS-based approaches to oil platforms in the North Sea.
Rapid population declines of Himalayan Griffon Gyps himalayensis in Upper Mustang, Nepal
Authors: ACHARYA RAJU , CUTHBERT RICHARD , BARAL HEM SAGAR , SHAH KARAN BAHADUR 
Published: March 2009

SummaryThe population collapse of resident Gyps vulture species in South Asia, caused by the use of a veterinary drug diclofenac, has highlighted an urgent need to monitor numbers of other vulture species in the region. This study assessed population trends of Himalayan Griffon Gyps himalayensis in the mountainous region of Upper Mustang, Nepal, which is an important breeding area for the species. Vultures were surveyed in 2002, 2004 and 2005 by recording the number of birds sighted along 188 km of transects, and observing numbers of birds at breeding colonies. The number of birds recorded per day and per kilometre of transect declined by 67% and 70% respectively over the period of study. The number of active nests declined by 84% from 2002 to 2005. The veterinary drug diclofenac was available in pharmacies in the Mustang region. Young Himalayan Griffons, which migrate to the lowland areas of Nepal and, in increasing numbers to India, are highly likely to be subject to diclofenac poisoning. If this rate of population decline occurs throughout the Himalayan region, the conservation status of the species will need to be urgently reassessed.
Distribution, habitat and status of ‘Endangered’ Sakalava Rail of Madagascar
Authors: RABENANDRASANA MARC , ZEFANIA SAMA , LONG PETER , THE SEING SAM , CLÉMENTINE VIRGINIE MARIE , RANDRIANARISOA MIHAJA , SAFFORD ROGER , SZÉKELY TAMA´S 
Published: March 2009

SummaryThe ‘Endangered’ Sakalava RailAmaurornis olivieriis endemic to wetlands in western Madagascar, where it has been recorded between the Betsiboka river in the north and the Mangoky river in the south. Between August 2003 and November 2006, including dry and wet seasons, we surveyed 36 potentially suitable wetlands throughout its known range. We found Sakalava Rails at five sites: Lacs Kinkony, Ampandra, Amparihy, Sahapy and Mandrozo. At each site the population was small (12–39 individuals) and the highest density was 20 individuals km−2. We found up to 67 birds in each field visit and the total number of birds (sum of maxima at each site) seen was 100. We estimate the total population at the five sites to be 215 rails. We cannot confirm that the population lies within the range estimated in the current Red List (250–999 individuals), although this may yet be proven correct. The typical breeding habitat of Sakalava Rail is lotic marshes with a mixture of large areas of open water, reedPhragmites mauritianusand floatingSalvinia hastata. The major threats to Sakalava Rail appear to be habitat loss caused by wetland conversion to rice fields and by fires, disturbance by fishermen and people from local villages, and hunting. Other processes that may alter the ecological character of wetlands and so affect their suitability for Sakalava Rails, such as hydrological change or the effects of exotic fish or vegetation, remain to be investigated.
Impact of body mass on hospital resource use in total hip arthroplasty
Authors: Batsis John A , Naessens James M , Keegan Mark T , Wagie Amy E , Huddleston Paul M , Huddleston Jeanne M 
Published: March 2009

AbstractObjectiveTo determine the impact of BMI on post-operative outcomes and resource utilization following elective total hip arthroplasty (THA).DesignA retrospective cohort analysis on all primary elective THA patients between 1996 and 2004. Primary outcomes investigated using regression analyses included length of stay (LOS) and costs (US dollars).SettingMayo Clinic Rochester, a tertiary care centre.SubjectsPatients were stratified by pre-operative BMI as normal (18·5–24·9 kg/m2), overweight (25·0–29·9 kg/m2), obese (30·0–34·9 kg/m2) and morbidly obese (≥35·0 kg/m2). Of 5642 patients, 1362 (24·1 %) patients had a normal BMI, 2146 (38·0 %) were overweight, 1342 (23·8 %) were obese and 792 (14·0 %) were morbidly obese.ResultsAdjusted LOS was similar among normal (4·99 d), overweight (5·00 d), obese (5·02 d) and morbidly obese (5·17 d) patients (P= 0·20). Adjusted overall episode costs were no different (P= 0·23) between the groups of normal ($17 211), overweight ($17 462), obese ($17 195) and morbidly obese ($17 655) patients. Overall operative and anaesthesia costs were higher in the morbidly obese group ($5688) than in normal ($5553), overweight ($5549) and obese ($5593) patients (P= 0·03). Operating room costs were higher in morbidly obese patients ($3418) than in normal ($3276), overweight ($3291) and obese ($3340) patients (P< 0·001). Post-operative costs were no different (P= 0·30). Blood bank costs differed (P= 0·002) and were lower in the morbidly obese group ($180) compared with the other patient groups (P< 0·05). Other differences in costs were not significant. Morbidly obese patients were more likely to be transferred to a nursing home (24·1 %) than normal (18·4 %), overweight (17·9 %) or obese (16·0 %) patients (P= 0·001 each). There were no differences in the composite endpoint of 30 d mortality, re-admissions, re-operations or intensive care unit utilization.ConclusionsBMI in patients undergoing primary elective THA did not impact LOS or overall institutional acute care costs, despite higher operative costs in morbidly obese patients. Obesity does not increase resource utilization for elective THA.
Maternal iodine status and neonatal thyroid-stimulating hormone concentration: a community survey in Songkhla, southern Thailand
Authors: Jaruratanasirikul Somchit , Sangsupawanich Pasuree , Koranantakul Ounjai , Chanvitan Prasin , Ruaengrairatanaroj Prasit , Sriplung Hutcha , Patanasin Thanomjit , Sukmee Siriporn 
Published: March 2009

AbstractObjectiveTo determine iodine intake and urinary iodine excretion (UIE) in a group of pregnant Thai women and the concentration of thyroid-stimulating hormone (TSH) in their neonates.DesignA prospective cohort study.SettingThree districts of Songkhla, southern Thailand.SubjectsTwo hundred and thirty-six pregnant women.ResultsA quarter of the participants lacked knowledge of iodine and the prevention of iodine deficiency, although 70 % used iodized salt. Those who did not use iodized salt stated that they had no knowledge about iodine (57 %) and no iodized salt was sold in their village (36 %). The median iodine intake in the three districts was 205–240 μg/d, with 53–74 % of pregnant women having iodine intake <250 μg/d. The median UIE in the three districts was 51–106 μg/l, with 24–35 % having UIE < 50 μg/l. The mean neonatal TSH was 2·40 (sd1·56) mU/l, with 8·9 % of neonates having TSH > 5 mU/l.ConclusionsThe studied women and their fetuses were at risk of mild iodine deficiency. About a quarter of the participants lacked knowledge of the importance of iodine. Education regarding the importance of iodine supplements and the promotion of iodized salt should be added to national health-care policies in order to prevent iodine-deficiency disorders, diseases that are subclinical but have long-term sequelae.
Biostratigraphic Study of the Gurpi Formation Based on Planktonic Foraminifera In Lar Area (Kuh-e-kurdeh Section)
Authors: Shafiee Ardestani Meysam , Ghasemi-Nejad Ebrahim , Mandanizadeh Ali 
Published: March 2009

AbstractThe study of planktonic foraminifera of the Gurpi formations at Lar area (Kuh-e-kurdeh section) enables me to find the most standard biozones defined in mediterranean regions, especially Tethysian domain. Five biozones were determined. Biozones I (Globotruncanita elevata zone) and II (Globotruncana ventricosa zone) and III (Radotruncana calcarata zone) indicate the Early Campanian and Middle and Late Campanian, respectively. Biozones IV (Globotruncanita stuarti zone) and V (Gansserina gansseri zone) suggest the Early and Middle Maastrichtian, respectively. In the Late Maastrichtian, due to decreasing in water depth at the study area, Abathomphalus mayaroensis zone defined in Tethysian domain was not recognised.
A consistency-based consensus algorithm for de novo and reference-guided sequence assembly of short reads
Authors: Rausch Tobias , Koren Sergey , Denisov Gennady , Weese David , Emde Anne-Katrin , Döring Andreas , Reinert Knut 
Published: March 2009

Abstract
Motivation: Novel high-throughput sequencing technologies pose new algorithmic challenges in handling massive amounts of short-read, high-coverage data. A robust and versatile consensus tool is of particular interest for such data since a sound multi-read alignment is a prerequisite for variation analyses, accurate genome assemblies and insert sequencing.
Results: A multi-read alignment algorithm for de novo or reference-guided genome assembly is presented. The program identifies segments shared by multiple reads and then aligns these segments using a consistency-enhanced alignment graph. On real de novo sequencing data obtained from the newly established NCBI Short Read Archive, the program performs similarly in quality to other comparable programs. On more challenging simulated datasets for insert sequencing and variation analyses, our program outperforms the other tools.
Availability: The consensus program can be downloaded from http://www.seqan.de/projects/consensus.html. It can be used stand-alone or in conjunction with the Celera Assembler. Both application scenarios as well as the usage of the tool are described in the documentation.
Contact: rausch@inf.fu-berlin.de
Changes in the catch composition of artisanal fisheries attributable to dolphin depredation in a Mediterranean marine reserve
Authors: Rocklin Delphine , Santoni Marie-Catherine , Culioli Jean-Michel , Tomasini Jean-Antoine , Pelletier Dominique , Mouillot David 
Published: March 2009

AbstractRocklin, D., Santoni, M-C., Culioli, J-M., Tomasini, J-A., Pelletier, D., and Mouillot, D. 2009. Changes in the catch composition of artisanal fisheries attributable to dolphin depredation in a Mediterranean marine reserve. – ICES Journal of Marine Science, 66: 699–707. There is increasing evidence from previous studies, and from fishers’ observations, that coastal dolphins use fishing nets as an easily accessible feeding source, damaging or depredating fish caught in the nets. This study investigates the impact of dolphin depredation on artisanal trammelnets by analysing the catch composition of 614 artisanal fishing operations in the Bonifacio Strait Natural Reserve (France). Common bottlenose dolphins (Tursiops truncatus) attacked, on average, 12.4% of the nets and damaged 8.3% of the catch. However, attacked nets were characterized by statistically significantly higher catch per unit effort than unattacked ones. Catch composition also differed significantly after dolphin attacks; bentho-pelagic fish were more represented and reef-associated fish less represented. Our results suggest that (i) dolphins are attracted by high fish densities in the fishing area and/or nets, and (ii) their attacks induce specific fish-avoidance behaviour, according to the fish position in the water column. Although dolphins depredate a small part of the catch, damage to nets, not yet assessed in this area, could weaken the benefits that reserves can provide to artisanal fisheries.
System Analysis of an Arabidopsis Mutant Altered in de Novo Fatty Acid Synthesis Reveals Diverse Changes in Seed Composition and Metabolism
Authors: Chen Mingjie , Mooney Brian P. , Hajduch Martin , Joshi Trupti , Zhou Mingyi , Xu Dong , Thelen Jay J. 
Published: March 2009

Abstract
Embryo-specific overexpression of biotin carboxyl carrier protein 2 (BCCP2) inhibited plastid acetyl-coenzyme A carboxylase (ACCase), resulting in altered oil, protein, and carbohydrate composition in mature Arabidopsis (Arabidopsis thaliana) seed. To characterize gene and protein regulatory consequences of this mutation, global microarray, two-dimensional difference gel electrophoresis, iTRAQ, and quantitative immunoblotting were performed in parallel. These analyses revealed that (1) transgenic overexpression of BCCP2 did not affect the expression of three other ACCase subunits; (2) four subunits to plastid pyruvate dehydrogenase complex were 25% to 70% down-regulated at protein but not transcript levels; (3) key glycolysis and de novo fatty acid/lipid synthesis enzymes were induced; (4) multiple storage proteins, but not cognate transcripts, were up-regulated; and (5) the biotin synthesis pathway was up-regulated at both transcript and protein levels. Biotin production appears closely matched to endogenous BCCP levels, since overexpression of BCCP2 produced mostly apo-BCCP2 and the resulting ACCase-compromised, low-oil phenotype. Differential expression of glycolysis, plastid pyruvate dehydrogenase complex, fatty acid, and lipid synthesis activities indicate multiple, complex regulatory responses including feedback as well as futile “feed-forward” elicitation in the case of fatty acid and lipid biosynthetic enzymes. Induction of storage proteins reveals that oil and protein synthesis share carbon intermediate(s) and that reducing malonyl-coenzyme A flow into fatty acids diverts carbon into amino acid and protein synthesis.
Design of artificial neural networks for slipper analysis of axial piston pumps
Authors: Canbulut Fazil , Koç Erdem , Sinanoğlu Cem 
Published: March 2009

PurposeThe purpose of this paper is to experimentally and theoretically investigate slippers, which have an important role on power dissipation in the swash plate axial piston pumps.Design/methodology/approachThe slipper geometry and working conditions affected on the slipper performance have been analyzed experimentally. The model of the slipper system has been established by original neural network (NN) method.FindingsFirst, the effects of the slipper geometry with smooth and conical sliding surfaces on the slipper performance were experimentally analyzed. Smooth sliding surface slippers showed a better performance then the conical surface ones. According to the results, the neural predictor would be used as a predictor for possible experimental applications on modeling this type of system.Originality/valueThis paper discusses a new modeling scheme known as artificial NNs an experimental and a NN approach have been employed for analyzing axial piston pumps. The simulation results suggest that the neural predictor would be used as a predictor for possible experimental applications on modeling bearing system.
The reflective frame
Authors: French Steven 
Published: March 2009

PurposeTo implement the concepts developed in this action research (AR) programme in a single company and monitor the results.Design/methodology/approachIn this paper the ideas canvassed in earlier papers regarding the inductive frame and the deductive frame are applied to a single firm and the response is observed over a period of three years. The CMS concept of a change in management style – from a modernist, traditional hands‐on, hierarchical manager/subordinate style, to a more inclusive, self‐management style is introducedFindingsThe tangible benefits that have been observed in the subject company over a period of three years are described. The strategic thinking process led to a change in company culture, which has resulted in many benefits deriving from significant productivity gains. Financial performance and employee productivity have improved significantly. AR as a philosophy for change and CMS as an epistemological paradigm, which underlies the core philosophies for the business, are now part of the long‐term culture of the firm and it is expected that the AR process will continue indefinitely.Practical implicationsSignificant improvements in productivity and profitability have been observed. Sickness and accident leave have also been reduced and a positive culture of self‐responsibility is apparent.Originality/valueThis small business has demonstrated many improvements and it is probable that other businesses would also enjoy the benefits of implementing this strategic process.
Multi‐scale modelling of heterogeneous structures with inelastic constitutive behavior
Authors: Niekamp Rainer , Markovic Damijan , Ibrahimbegovic Adnan , Matthies Hermann G. , Taylor Robert L. 
Published: March 2009

PurposeThe purpose of this paper is to consider the computational tools for solving a strongly coupled multi‐scale problem in the context of inelastic structural mechanics.Design/methodology/approachIn trying to maintain the highest level of generality, the finite element method is employed for representing the microstructure at this fine scale and computing the solution. The main focus of this work is the implementation procedure which crucially relies on a novel software product developed by the first author in terms of component template library (CTL).FindingsThe paper confirms that one can produce very powerful computational tools by software coupling technology described herein, which allows the class of complex problems one can successfully tackle nowadays to be extended significantly.Originality/valueThis paper elaborates upon a new multi‐scale solution strategy suitable for highly non‐linear inelastic problems.
Reinganum's trading strategies revisited
Authors: Yu Susana 
Published: March 2009

PurposeThe purpose of this paper is to reexamine the value, momentum and size factors employed in the trading strategy originally proposed by Reinganum. Also to enhance our understanding of the impact of these factors over time; to evaluate the effectiveness of these factors; to develop new strategies through a framework presented by Chan et al.; and to investigate the possibility of limiting the number of filters to allow for a larger universe of eligible stocks without hurting performance for both long and short strategies.Design/methodology/approachUsing data from 1970 to 1983, Reinganum developed a profitable trading strategy based on four (or nine) variables to select stocks. First this paper shows why it is increasingly difficult to implement his original trading strategy, then tests his strategy on 23 additional years of data through 2006, and compares it to similar strategies that incorporate straightforward modifications to his filters. The analysis is further extended to a long/short trading strategy similar to that of Chan et al.FindingsUsing the Capital Asset Pricing Model, Fama‐French's three‐factor model and Carhart's four‐factor model to evaluate returns following portfolio formation, significant and consistent alphas and portfolio sizes were found.Research limitations/implicationsIt is concluded that strategies that mix value, momentum and size filter rules can be developed to produce consistently negative or non‐positive (vs solely positive) alphas.Originality/valueThe paper shows that it is possible to form profitable short‐only and long/short strategies and to increase the number of eligible stocks in the sample despite our modifications to Reinganum's variables. By creating strategies based on mixed filter rules to produce either consistently positive (or negative) risk‐adjusted returns, it can be concluded that slightly different versions of a given filter rule – often much simpler versions – not only enhance return performance but also increase its effectiveness in terms of portfolio size.