bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dual‐band superconducting bandpass filter with embedded resonator structure
Authors: Heng Yong , Guo Xubo , Cao Bisong , Ying Zhijun , Wei Bin , Zhang Xiaoping , Zhang Guoyong , Song Xiaoke , Wang Jingchen 
Published: August 2013

A dual‐band superconducting microstrip filter with two passbands of 2.985–3.015 GHz and 3.045–3.075 GHz, respectively, is synthesised by a frequency transformation method. Open‐loop resonators with embedded single spiral resonators are proposed to realise the synthesised resonator frequencies and coupling coefficients. This structure has the advantages of compact size and weak parasitic couplings, which benefit the implementation of the dual‐band planar filter. The filter is successfully designed and fabricated on an MgO substrate. The measured results show high performance and match well with the simulations.
Compact polarisation reconfigurable printed monopole antenna at 2.4 GHz
Authors: Amini M.H. , Hassani H.R. 
Published: August 2013

A single feed printed monopole antenna with switchable polarisation with reduced antenna size is proposed. The radiating element is in the form of two monopole rectangular patches fed by a single microstrip line. To reduce the size of the patches and to provide dual polarised operation, each patch is perturbed by two L‐shaped slots. Such a structure can produce two orthogonal linear polarisations by switching only one pin diode, which is the most interesting feature of the design. To further reduce the size of the antenna a meandered stub attached to the transmission line is employed. The antenna is fabricated on the low‐cost FR4 substrate with an overall size of 26 × 19 mm2.
Prediction of monthly rainfall statistics from data with long integration time
Authors: Luini L. , Capsoni C. 
Published: August 2013

Conversion models, originally devised to turn yearly rainfall statistics from long (e.g. 30 or 60 min) to short integration time T (i.e. 1 min), are assessed for their ability to also predict monthly 1‐min integrated statistics, P(R)1m, knowledge of which may be beneficial for specific services (e.g. reconfigurable systems) and for the definition of a reliable approach to estimate monthly (hence worst month) rain attenuation statistics. Tests, performed for 5 ≤ T ≤ 60 min against monthly raingauge‐derived rainfall data collected in some sites worldwide, indicate that the EXponential CELL rainfall statistics conversion (EXCELL RSC) and Lavergnat‐Golé models, in force of their physical soundness, provide a good performance when used to predict 1‐min integrated rainfall statistics both on yearly and on monthly bases.
Water Body Type Influences Climate–Growth Relationships of Freshwater Drum
Authors: Richard Jordan C. , Rypel Andrew L. 
Published: August 2013

AbstractClimate–growth relationships of fish are of increasing research interest. However, few studies have attempted to characterize the extent to which climate–growth relationships may diverge across fundamentally different types of environments. The goal of this study was to examine the effects of climate variability (i.e., temperature, precipitation, global climate indices) on the growth of Freshwater Drum Aplodinotus grunniens and determine the extent to which these relationships differ between lotic and lentic habitats. Freshwater Drum were collected from five river and five reservoir environments in Georgia, Alabama, and Mississippi. Tree‐ring techniques were used to standardize annual growth for age (measured using interannual growth increments from otolith sagittae) and growth indices were correlated to annual thermal, hydrologic, and global climate indices. Freshwater Drum expressed distinct and significant climate–growth relationships by water body type. The general pattern observed was that annual drum growth in rivers was significantly correlated to days of year of maximum flow while annual drum growth in reservoirs was significantly correlated to annual variation in number of growing degree‐days (GDD). Furthermore, the strength of growth–GDD correlations for drum increased predictably alongside hydraulic retention time of reservoirs. This study reveals that water body type can govern climate–growth relationships in fish and suggests biologists need to be wary of assuming that patterns documented in one population would be wholly applicable to another.
New Uses of Old Tools? Greenhouse Gas Mitigation with Agriculture Sector Policies
Authors: Jones Carol Adaire , Nickerson Cynthia J. , Heisey Paul W. 
Published: August 2013

AbstractFollowing the failure of legislative proposals for a multi‐sector greenhouse gas (GHG) cap‐and‐trade policy, the shift in focus to energy sector policies ignores the perhaps substantial potential for GHG mitigation from agriculture/forestry. We review estimates of the current U.S. agriculture sector contribution to GHG mitigation from a portfolio of existing sector policies in bioenergy, conservation, and research and development to compare accomplishments across programs. We then consider what opportunities and challenges may exist for increasing sector GHG mitigation by retargeting and/or expanding current programs—or for bioenergy‐related mitigation, implementing proposed new programs—to serve as an alternative to cap‐and‐trade.
The Transitional Costs of Sectoral Reallocation: Evidence From the Clean Air Act and the Workforce*
Authors: Walker W. Reed 
Published: August 2013

Abstract
This article uses linked worker-firm data in the United States to estimate the transitional costs associated with reallocating workers from newly regulated industries to other sectors of the economy in the context of new environmental regulations. The focus on workers rather than industries as the unit of analysis allows me to examine previously unobserved economic outcomes such as nonemployment and long-run earnings losses from job transitions, both of which are critical to understanding the reallocative costs associated with these policies. Using plant-level panel variation induced by the 1990 Clean Air Act Amendments (CAAA), I find that the reallocative costs of environmental policy are significant. Workers in newly regulated plants experienced, in aggregate, more than $5.4 billion in forgone earnings for the years after the change in policy. Most of these costs are driven by nonemployment and lower earnings in future employment, highlighting the importance of longitudinal data for characterizing the costs and consequences of labor market adjustment. Relative to the estimated benefits of the 1990 CAAA, these one-time transitional costs are small.
Expression analysis of Foxp3 in T cells from bovine leukemia virus infected cattle
Authors: Suzuki Saori , Konnai Satoru , Okagawa Tomohiro , Ikebuchi Ryoyo , Shirai Tatsuya , Sunden Yuji , Mingala Claro N. , Murata Shiro , Ohashi Kazuhiko 
Published: August 2013

ABSTRACTIn the present study, we monitored Foxp3+ T cells in bovine leukemia virus (BLV)‐infected cattle. By flow cytometric analysis, the proportion of Foxp3+CD4+ cells from persistent lymphocytotic cattle was significantly increased compared to control and AL cattle. Interestingly, the proportion of Foxp3+CD4+ cells correlated positively with the increased number of lymphocytes, virus titer and virus load, whereas it inversely correlated with IFN‐γ mRNA expression, suggesting that Foxp3+CD4+ T cells in cattle have a potentially immunosuppressive function. Further studies are necessary to elucidate the detailed mechanism behind the increased Treg during BLV infection.
Microbial alginate production, modification and its applications
Authors: Hay Iain D. , Rehman Zahid Ur , Moradali M. Fata , Wang Yajie , Rehm Bernd H. A. 
Published: August 2013

SummaryAlginate is an important polysaccharide used widely in the food, textile, printing and pharmaceutical industries for its viscosifying, and gelling properties. All commercially produced alginates are isolated from farmed brown seaweeds. These algal alginates suffer from heterogeneity in composition and material properties. Here, we will discuss alginates produced by bacteria; the molecular mechanisms involved in their biosynthesis; and the potential to utilize these bacterially produced or modified alginates for high‐value applications where defined material properties are required.
Gerstmann‐Sträussler‐Scheinker Syndrome with Variable Phenotype in a New Kindred with PRNP‐P102L Mutation
Authors: Riudavets Miguel A. , Sraka María Alejandra , Schultz Marcelo , Rojas Estefanía , Martinetto Horacio , Begué Christian , de Halac Inés Noher , Poleggi Anna , Equestre Michele , Pocchiari Maurizio , Sevlever Gustavo , Taratuto Ana Lía 
Published: August 2013

AbstractGerstmann‐Sträussler‐Scheinker syndrome (GSS) is a dominantly inherited disorder belonging to the group of transmissible human spongiform encephalopathies or prion diseases. Several families affected by GSS with patients carrying mutations in the prion protein gene have been described worldwide. We report clinical, genealogical, neuropathology and molecular study results from two members of the first Argentine kindred affected by GSS. Both family members presented a frontotemporal‐like syndrome, one with and the other without ataxia, with different lesions on neuropathology. A Pro to Leu point mutation at codon 102 (P102L) of the prion protein gene was detected in one of the subjects studied. The pathogenic basis of phenotypic variability observed in this family remains unclear, but resembles that observed in other P102L GSS patients from the same family.
Puzzling Skills: Feminist Political Economy Approaches
Authors: Armstrong Pat 
Published: August 2013

Je m'appuie sur l'économie politique féministe pour argumenter qu'il nous faut changer notre approche. Au lieu de nous concentrer sur les structures du travail axées sur la déqualification et le contrôle de la maind'œuvre ou sur les individus et leur apprentissage formel, nous devons nous interroger sur les conditions qui empêchent les individus d'acquérir et d'utiliser les compétences voulues et réfléchir aux différents moyens de tenir compte du facteur temps dans la façon d'évaluer les compétences. Notre article se veut d'abord une intervention théorique dans le débat sur les compétences, mais qui prend racine dans une préoccupation très concrète : les compétences requises dans le domaine des soins de santé.Using a feminist political economy lens, I argue that there is a need to change how we approach skills in political economy. Instead of focusing solely on labor processes that deskill and limit control (as much of the rich political economy literature does, in this journal and elsewhere), or on individualized formal learning (as much of the management literature does), we need to ask what prevents people from developing and using the skills they need for their work, and how time can be factored into skill assessment. The argument is theoretical, but grows out of a practical concern with skills in health care.
Five Decades of Class Analysis in the Canadian Review of Sociology
Authors: Langford Tom 
Published: August 2013

Cet article discute les grandes trajectoires de l'analyse de classe publiées par La Revue canadienne de sociologie au cours des premières cinq décennies, y compris la recherche aux sujets de la structure de classe, de la classe capitaliste et de la classe ouvrière. Depuis les années 1960s, trois interventions intellectuelles – (1) féministe et antiraciste, (2) poststructuraliste et (3) personnalisation – ont suscité une réorientation et fragmentation de la sous‐discipline de l'analyse de classe. Pour conclure, l'article évalue la mesure à laquelle chaqun de ces interventions ont influencé les chemins de l'analyse de classe publiés par RCS; de plus, il offre trois pensées à propos des futures directions de l'analyse de classe dans la sociologie canadienne.This article discusses the main trajectories of class analysis that have been published by the Canadian Review of Sociology (CRS) over its first five decades, including research on class structure, the capitalist class, and the working class. Since the 1960s, three major intellectual challenges—(1) feminist/antiracist, (2) poststructuralist, and (3) individualization—have reoriented and fragmented the subdiscipline of class analysis. The article concludes by assessing the extent to which each of these intellectual challenges has impacted the streams of class analysis published in the CRS, and offers three thoughts on future directions for class analysis in Canadian sociology.
Weak Convex Decomposition by Lines‐of‐sight
Authors: Asafi Shmuel , Goren Avi , Cohen‐Or Daniel 
Published: August 2013

AbstractWe define the convexity rank of a set of points to be the portion of mutually visible pairs of points out of the total number of pairs. Based on this definition of weak convexity, we introduce a spectral method that decomposes a given shape into weakly convex regions. The decomposition is applied without explicitly measuring the convexity rank. The method merely amounts to a spectral clustering of a matrix representing the all‐pairs line of sight. Our method can be directly applied on an oriented point cloud and does not require any topological information, nor explicit concavity or convexity measures. We demonstrate the efficiency of our algorithm on a large number of examples and compare them qualitatively with competitive approaches.
The New Normal: The Figure of the Condo Owner inToronto'sRegentPark
Authors: KELLY SHARON 
Published: August 2013

AbstractIn this paper, I explore the newly emergent figure of the condo owner inToronto'sRegentPark,Canada's first and largest government housing project, which is being razed and rebuilt in a $1 billion redevelopment. The revitalized neighborhood will contain a mix of subsidized and condominium housing, and commercial development. Against this backdrop of massive change, the figure of the condo owner is perceived both as a salve and a threat. The redevelopment is premised upon the need to “normalize”RegentPark through the creation of a mixed‐income neighborhood, and the figure of the condo owner is deployed as a paragon of this “new normal.” However, the presence of the condo owner also evokes fears of privatization and a diminished voice for low‐income residents. Drawing on fieldwork conducted withinRegentPark, I examine how the figure of the condo owner is constituted in service to the redemption of a devalorized neighborhood, and how the condo owners negotiate this subject position. [urban revitalization, social mix, poverty, gentrification, Toronto].
Smoking increases the risk of pre‐ and postoperative complications in patients with pilonidal disease
Authors: Iesalnieks Igors , Deimel Sina , Zülke Carl , Schlitt Hans J. 
Published: August 2013

SummaryBackgroundSmoking has a negative impact on the natural history and on treatment results of many dermatological conditions. However, there are no data demonstrating a similar effect in patients with pilonidal disease.Patients and MethodsConsecutive patients undergoing surgery for pilonidal disease between 1/2004 and 3/2012 were analyzed retrospectively. Two surgical methods were used: a minimally invasive “pit‐picking” surgery for smaller primary disease and Karydakis flap for patients presenting with larger primary disease or those who have been operated previously. The aim of the present study was to analyze the impact of smoking on the natural history and on treatment results.ResultsSix hundred and ten patients underwent 660 surgeries: 475 pit‐picking operations and 185 Karydakis procedures. Smokers had developed a pilonidal abscess at least once during their disease significantly more often than non‐smokers (48% vs. 26%, p = 0.00001). The recurrence rate following the pit‐picking procedure was significantly increased in smokers (1‐year recurrence rate: 36% vs. 21%, p = 0.008). After the Karydakis procedure, smokers developed more wound complications than non‐smokers (29% vs. 10%, p = 0.005). The recurrence rate after the Karydakis flap was non‐significantly increased in smokers (9% vs. 7% at 1 year, p = 0.07).ConclusionsSmoking has a detrimental effect on the natural history and on treatment results of pilonidal disease. Patients should be encouraged to cease smoking prior to pilonidal surgery.
Bacteriological pathogen spectrum of chronic leg ulcers: Results of a multicenter trial in dermatologic wound care centers differentiated by regions
Authors: Jockenhöfer Finja , Gollnick Harald , Herberger Katharina , Isbary Georg , Renner Regina , Stücker Markus , Valesky Eva , Wollina Uwe , Weichenthal Michael , Karrer Sigrid , Klode Joachim , Dissemond Joachim 
Published: August 2013

SummaryBackgroundIn almost every chronic wound different bacteria species can be detected.Patients and methodsRetrospective, multicenter evaluation of bacterial swab results from 2010 and 2011 in patients with chronic leg ulcer treated in 10 dermatologic wound care centers from 5 regions in Germany.ResultsData of 970 patients were analyzed. Staphylococcus aureus was detected in 47.6 % of the patients, 8.6% of these were methicillin‐resistant (MRSA). Pseudomonas aeruginosa was found in 31.1 %, enterobacteria in 28.6 % and Proteus mirabilis in 13.7 % of the patients. The regional comparison showed a significant south‐north gradient for S. aureus, P. aeruginosa, and enterobacteria. Moreover, a highly significant west‐east gradient for MRSA was found with detection rates of 13.5 % in the west to 4.0 % in the east. Furthermore, nationally there was a significant negative correlation between S. aureus and P. aeruginosa or P. mirabilis, respectively, as well as a positive correlation of P. aeruginosa with respect to wound size and duration. In addition to climatic and therapeutic conditions, different regional health care structures are discussed as potentially relevant reasons for these significantly different regional detection rates.ConclusionsOur data show the regional variability of the spectrum of currently detected bacteria in patients with chronic leg ulcers in Germany.
The Effects of Strategic and Structural Supply Chain Orientation on Operational and Customer‐Focused Performance
Authors: Patel Pankaj C. , Azadegan Arash , Ellram Lisa M. 
Published: August 2013

ABSTRACTSupply chain orientation (SCO), or the implementation of a supply chain management philosophy, consists of two distinct, yet interdependent elements, namely strategic SCO and structural SCO. Strategic SCO involves integrating an SCM philosophy into the firm's strategy development, while structural SCO encompasses operational‐level behaviors and actions that reflect such a philosophy. This study extends the research on SCO by developing hypotheses on the contingent effects of strategic SCO and structural SCO on a firm's operational and customer‐focused performance. Drawing on the strategy‐structure‐performance framework, the study proposes that strategic SCO and structural SCO positively affect different dimensions of performance and that structural SCO plays a mediating role in the relationship between strategic SCO and performance. These relationships are tested using primary survey data and archival data from 183 manufacturers in the Midwestern US. Results confirm that strategic SCO is associated with both operational performance and customer‐focused performance, but structural SCO is only related to operational performance. Structural SCO acts as a mediator in linking strategic SCO with operational performance and customer‐focused performance and mediation effects are strengthened at higher levels of environmental dynamism.
Influence of peripheral vascular calcification on efficiency of screening tests for peripheral arterial occlusive disease in diabetes—a cross‐sectional study
Authors: Aubert C. E. , Cluzel P. , Kemel S. , Michel P.‐L. , Lajat‐Kiss F. , Dadon M. , Hartemann A. , Bourron O. 
Published: August 2013

AbstractAimsPulse palpation and ankle brachial index are recommended to screen for peripheral arterial occlusive disease in people with diabetes. However, vascular calcification can be associated with false negative tests (arteriopathy present despite normal screening tests). We therefore studied the impact of peripheral vascular calcification on the performance of these tests.MethodsThis cross‐sectional study included 200 people with diabetes at high risk of cardiovascular disease. The main exclusion factor was an estimated glomerular filtration rate < 30ml/min. Peripheral arterial occlusive disease was diagnosed by colour duplex ultrasonography and peripheral vascular calcification scored by computed tomography scan. We measured sensitivity, specificity, predictive values, accuracy and likelihood ratios of pulse palpation and ankle brachial index, and looked for the impact of calcification on false negative tests (arteriopathy present despite normal screening tests).ResultsAnkle brachial index alone had poor sensitivity and negative predictive value and high negative likelihood ratio. Pulse palpation had higher sensitivity and negative predictive value. An abnormal pulse palpation, defined by weak or missing pulses, combined with an abnormal ankle brachial index, had the highest sensitivity and negative predictive value (92.3 and 89.8%, respectively). Vascular calcification score was higher in patients with false negative tests, for both pulse palpation and ankle brachial index (P < 0.0001 for all). Ankle systolic blood pressure was higher in patients with false negative tests for pulse palpation (P = 0.004).ConclusionsBelow‐knee vascular calcification gave a high rate of false negative results for ankle brachial index. Refined pulse palpation combined with ankle brachial index remained the best strategy to screen for peripheral arteriopathy.
Architecture‐driven assistance for fault‐localization tasks
Authors: Soria Álvaro , Díaz‐Pace J. Andrés , Campo Marcelo R. 
Published: August 2013

AbstractFinding software faults is a problematic activity in many systems. Existing approaches usually work close to the system implementation and require developers to perform different code analyses. Although these approaches are effective, the amount of information to be managed by developers is often overwhelming. This problem calls for complementary approaches able to work at higher levels of abstraction than code, helping developers to keep intellectual control over the system when analyzing faults. In this context, we present an expert‐system approach, called FLABot, which assists developers in fault‐localization tasks by reasoning about faults using software architecture models. We have evaluated a prototype of FLABot in two medium‐size case studies, involving novice and non‐novice developers. We compared time consumed, code browsed and faults found by these developers, with and without the support of FLABot, observing interesting effort reductions when applying FLABot. The results and lessons learned have shown that our approach is practical and reduces the efforts for finding individual faults.
Probabilistic cumulative damage model to estimate fatigue life
Authors: Pinto J. M. A. , Pujol J. C. F. , Cimini C. A. 
Published: August 2013

ABSTRACTThis paper introduces a numerical model to estimate fatigue life under step‐stress conditions, using the Weibull and lognormal distributions. The maximum likelihood method was used to estimate the free parameters of the distributions. The model was fitted to an experimental data on fatigue life in the specimens of steel SAE 8620, by using evolutionary computation to optimize the likelihood function. Results are reported on the values of the parameters and their confidence interval. Also, a validation of the model is discussed using analysis of residuals.