bluuebunny/crossref_metadata_2025_split huggingface dataset:
Positive and Negative Affectivity as Mediators of Volunteerism and Service‐Oriented Citizenship Behavior and Customer Loyalty
Authors: Jain Ajay K. , Malhotra Naresh K. , Guan Chong 
Published: November 2012

ABSTRACTThis study sought to examine the impact of volunteerism (motivation to help) on service‐oriented organizational citizenship behavior (S‐OCB) of salespeople as mediated by the positive and negative affectivity, and further how the involvement of salespeople in S‐OCB would affect the customer loyalty toward the company. The context chosen for empirical investigation was the Indian pharmaceutical sector and the sample consists of 125 medical sales representatives from four companies that are well‐established players, including three multinational firms and one Indian company, as well as their supervisors (n = 48) and doctors (n = 150). The data are analyzed through partial least squares approach to path modeling to estimate the measurement and structural parameters. All of the hypotheses are confirmed. The results of this study indicate that volunteerism exhibits a significant positive impact on S‐OCB and customer loyalty. In addition, this positive impact is partially mediated by positive and negative affectivity. In sum, the proposed model explains a large amount of variance in S‐OCB and customer loyalty, suggesting that it will serve as a useful tool for analyzing service‐oriented organizational sale persons’ behavior and customers’ reactions. The implications of these results include improving service OCB by promoting volunteerism in the service industry and emphasizing the important roles of service staff in enhancing the customer loyalty.
The Netherlands Obsessive Compulsive Disorder Association (NOCDA) study: design and rationale of a longitudinal naturalistic study of the course of OCD and clinical characteristics of the sample at baseline
Authors: Schuurmans Josien , van Balkom Anton J.L.M. , van Megen Harold J.G.M. , Smit Johannes H. , Eikelenboom Merijn , Cath Danielle C. , Kaarsemaker Maarten , Oosterbaan Desiree , Hendriks Gert‐Jan , Schruers Koen R.J. , van der Wee Nic J.A. , Glas Gerrit , van Oppen Patricia 
Published: November 2012

AbstractIn half of Obsessive Compulsive Disorder (OCD) patients the disorder runs a chronic course despite treatment. The factors determining this unfavourable outcome remain unknown.The Netherlands Obsessive Compulsive Disorder Association (NOCDA) study is a multicentre naturalistic cohort study of the biological, psychological and social determinants of chronicity in a clinical sample. Recruitment of OCD patients took place in mental health organizations. Its design is a six‐year longitudinal cohort study among a representative clinical sample of 419 OCD patients. All five measurements within this six‐year period involved validated semi‐structured interviews and self‐report questionnaires which gathered information on the severity of OCD and its co‐morbidity as well as information on general wellbeing, quality of life, daily activities, medical consumption and key psychological and social factors. The baseline measurements also include DNA and blood sampling and data on demographic and personality variables. The current paper presents the design and rationale of the study, as well as data on baseline sample characteristics. Demographic characteristics and co‐morbidity ratings in the NOCDA sample closely resemble other OCD study samples. Lifetime co‐morbid Axis I disorders are present in the majority of OCD patients, with high current and lifetime co‐morbidity ratings for affective disorders (23.4% and 63.7%, respectively) and anxiety disorders other than OCD (36% current and 46.5% lifetime). Copyright © 2012 John Wiley & Sons, Ltd.
Double Mover–Stayer model on customer switching in telecommunications industry
Authors: Ng Michael K. , Chung Yuho 
Published: November 2012

AbstractCustomer acquisition and customer retention are the most important challenges in the increasingly competitive telecommunications industry. Traditional studies of customer switching always assume that customers are homogeneous, and thus that model customer switching behavior follows a Markov formulation. However, this postulation is obviously inappropriate in most instances. Blumen et al. (Cornell Studies of Industrial and Labor Relations, Cornell University Press, Ithaca, NY, 1955) developed the Mover–Stayer (MS) model, a generalization of the Markov chain model, to relax the requirement of homogeneity and allow the presence of heterogeneity with two different types of individuals—“stayers,” who purchase the same kinds of products or services throughout the entire observation period; and “movers,” who look for variety in products or services over time. There are two purpose of this article. First, we extend the MS model to a Double Mover‐Stayer (DMS) model by assuming the existence of three types of individuals in the market: (1) stable and loyal customers, who have stable usage within the same company; (2) instable but loyal customers, whose usage varies within the same company over time; and (3) disloyal customers, who switch from one company to another to seek for new experiences or/and benefits. We also propose an estimation method for the DMS model. Second, we apply the DMS model to telecommunications data and demonstrate how it can be used for pattern identification, hidden knowledge discovery, and decision making. © 2012 Wiley Periodicals, Inc. Naval Research Logistics, 2012
Optical and mechanical properties of transparent SrTiO3 thin films deposited by ECR ion beam sputter deposition
Authors: Panomsuwan Gasidit , Takai Osamu , Saito Nagahiro 
Published: November 2012

AbstractSrTiO3 (STO) thin films have been deposited on glass substrates by electron cyclotron resonance (ECR) ion beam sputter deposition at different substrate temperatures (100–600 °C). The structural characteristics of the deposited films show a transition from amorphous phase to polycrystalline phase at 600 °C. The films exhibit good transparency with an interference pattern in the visible region and a very smooth surface without cracks. The refractive index of the films increases with an increase of the substrate temperature, and their dispersion was analyzed by a single‐oscillator model. The extinction coefficient of the films in the visible region is of the order of 10−3–10−2. The estimated values of the direct and indirect bandgap energies for the polycrystalline STO film are 3.80 and 3.32 eV, respectively. Its density is almost identical to the bulk STO single crystal, which is relatively high in comparison with those prepared by other techniques. The mechanical stability of the films is also improved with an increase of substrate temperature. Young's modulus and hardness of the polycrystalline STO film are 194.1 ± 15.5 and 22.5 ± 2.0 GPa, respectively.
Magnetic ordering and structural stability of La2/3Sr1/3MnO3/SrTiO3 (001) interfaces: A density‐functional theory study
Authors: Chen Li Yong , Le Chen Chang , Jin Ke Xin , Wang Su Fang , Du Xiu Juan 
Published: November 2012

AbstractThe magnetic ordering and relative structural stability (phase diagram) of La2/3Sr1/3MnO3/SrTiO3 (LSMO/STO) (001) interfaces are considered by performing generalized gradient approximation plus on‐site Coulomb correction calculations. A potential antiferromagnetic alignment between the interface layer and bulk is conjectured for the b‐type LSMO/STO (001) interface where the atomic‐layer stacking near interface is $\cdots $LaOMnO2LaOMnO2SrOMnO2SrOTiO2$\cdots $ (SrO termination). This is in qualitative agreement with the fact that suppression of ferromagnetism at the SrO‐terminated (001) interface is found at some experiments. The small magnetic exchange energies, for the SrO‐terminated LSMO/STO (001) interfaces, suggest that Mn spins at the interface are likely to reverse as the temperature changes. Hence, possible magnetic reconstructions will be expected to occur at the SrO‐terminated (001) interfaces when temperature increases. Under thermodynamic equilibrium, the calculated phase diagrams show that, with the exception of the c‐type (001) interface where the atomic‐layer stacking near interface is $\cdots $La2/3Sr1/3OMnO2SrOTiO2$\cdots $ (SrO termination), all other considered LSMO/STO (001) interfaces may be stabilized in the proper conditions. The spin‐resolved density of states shows that high spin‐transport behaviors could be achieved at the ferromagnetic TiO2‐terminated (001) interfaces. The results of the calculations can compare favorably with the experimental results for the LSMO/STO (001) junctions.
Effects of optical depth variability on contrail radiative forcing
Authors: Kärcher Bernd , Burkhardt Ulrike 
Published: November 2012

AbstractLine‐shaped contrails arising from aircraft emissions affect radiative forcing. The magnitude of the radiative forcing from contrails depends strongly on their optical depth and their spatial and temporal variability caused by dynamical and microphysical processes. Here we investigate the significance of this variability, both for modelling contrail radiative forcing and estimating thresholds for the detection of contrails in satellite imagery. Ignoring the variability of contrail optical depth in models by prescribing a mean optical depth may overestimate mean net radiative forcing by 10−20%. Undersampling of optically thin line‐shaped contrails by passive satellite remote sensing is linked to the inability to detect flux changes in the outgoing long‐wave radiation below ≈︁3 W m−2 for conditions over the eastern North Pacific. Consideration of these findings aids efforts to better quantify uncertainties in aviation climate assessments.
Efficient and adaptively secure broadcast encryption systems
Authors: Zhang Mingwu , Yang Bo , Chen Zhenhua , Takagi Tsuyoshi 
Published: November 2012

ABSTRACTBroadcast encryption is an effective way to broadcast a message securely such that more than one privileged receiver can decrypt it. The well‐known constructions of identity‐based broadcast encryption only support bounded broadcast users that had to deploy the maximum user number in advance. This is somewhat inefficient and impractical if the broadcast user number is predetermined. In this paper, we propose an adaptively secure identity‐based broadcast encryption in the standard model that supports arbitrary number of users in broadcast set, which eliminates the size of public parameters with a constant number of group elements and obtain short ciphertexts, secret keys, and public parameters. We use the techniques of semi‐functional ciphertexts and semi‐functional keys in orthogonal subgroups to implement the boundless broadcast set and adaptive security by means of dual‐system encryption mechanism in a composite‐order group, and we prove the scheme to be fully secure without the random oracles in the static assumptions. The proposed scheme captures the properties of confidentiality, adaptive security, constant key, and short ciphertext. We also evaluate the computational costs and communication overheads and give the deployment in secure set‐top box broadcast systems. Copyright © 2012 John Wiley & Sons, Ltd.
Using multi criteria decision making in analysis of alternatives for selection of enabling technology
Authors: Georgiadis Daniel R. , Mazzuchi Thomas A. , Sarkani Shahram 
Published: November 2012

AbstractIn September 2009 the U.S. Government Accountability Office (GAO) reported, “Defense Acquisitions: Many Analyses of Alternatives Have Not Provided a Robust Assessment of Weapon System Options” [U.S. Government Accountability Office, Pub. No. GAO‐09‐665, 2009, p. 1]. In their focused review of 32 Acquisition Category I programs, it was found that 10 did not conduct an Analysis of Alternatives (AoA), but rather focused on an already selected weapon system solution. Prior to Milestone A, the Department of Defense (DoD) requires that service sponsors conduct an Analysis of Alternatives (AoA). The AoA is an analytical comparison of multiple alternatives to be completed prior to committing and investing costly resources to one project or decision. Typically, however, sponsors will circumvent the process in an effort to save money or schedule, and capability requirements are proposed that are so specific that they effectively eliminate all but the preferred concepts, practically ignoring other alternatives. Decision making is one of the most challenging parts of Systems Engineering. How one feeds the decision making process is key to eliminating long term waste. “About three‐quarters of a program”s total life cycle cost is influenced by decisions made before it is approved to start development“[U.S. Government Accountability Office, Pub. No. GAO‐09‐665, 2009, pp. “2]. This study evaluates the positive benefits of defining the problem domain prior to expeditiously turning to the solution domain. The goal in any decision making process is to provide the decision maker with the ability to look into the future, and to make the best possible decision based on past and present information and future predictions. There is a need for approaches that combine available quantitative data with the more subjective knowledge of experts. Decision theory techniques have been successfully used for contrasting expert judgments and making educated choices for many years. For a successful analysis, one must focus on selection of specific criteria that are key performance drivers that can lead to an informed selection of the enabling technology. Understanding the requirements of the end state goal is key to a successful analysis and should also assist in the selection of key performance parameters. A case study example is presented to demonstrate a third tier AoA identifying an enabling technology using the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) while successfully accounting for tacit knowledge of expert practitioners. © 2012 Wiley Periodicals, Inc. Syst Eng 16
Deuterium atomic density estimation in recombining plasmas using self‐absorption spectroscopy
Authors: Kajita Shin , Nishiwaki Toshihiro , Ohno Noriyasu , Sawada Keiji , Takagi Makoto 
Published: November 2012

AbstractDeuterium atomic density in the divertor region of fusion reactors is an important parameter. In this study, atomic density is estimated in the divertor simulator NAGDIS‐T by use of an absorption effect of Lyman‐β, of which the wavelength is in the vacuum ultraviolet (VUV). The calibration of the spectrometer in the VUV wavelength was performed by using a branching ratio method. The intensity ratio of Lyman‐β to Balmer‐α significantly decreased in detached plasmas because of radiation trapping. The atomic density was estimated by use of self‐absorption effect. © 2012 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.
Offshore wind turbine environment, loads, simulation, and design
Authors: Vorpahl Fabian , Schwarze Holger , Fischer Tim , Seidel Marc , Jonkman Jason 
Published: November 2012

In the design, certification, and optimization of offshore wind turbines, extensive loads simulation is inevitable to develop reliable and cost‐effective turbines. Description of the marine environment is based on a variety of techniques taking the stochastic nature of both, the wind and the water waves into account. The wind turbine is a highly dynamic system including effects of heavy rotating machinery and other significant nonlinearities leading to static, cyclic, transient, and stochastic loads. Due to the nature of the external loading, the system properties and the turbine design lifetime, offshore wind turbines are prone to fatigue‐driven failure. For loads assessment, aero‐hydro‐servo‐elastic tools are used including the coupled effects of the environment and the turbine to simulate the overall lifetime of the turbine in the harsh marine environment. These tools are constantly further developed and adapted to the needs of a fast‐growing industry and newly arising turbine concepts. Engineering approaches to allow for certification and reliable design are summarized in extensive guidelines and standards supporting engineers in daily design work.This article is categorized under:

Wind Power > Science and Materials
Wind Power > Systems and Infrastructure
On the economic foundations of green growth discourses: the case of climate change mitigation and macroeconomic dynamics in economic modeling
Authors: Scrieciu S. , Rezai A. , Mechler R. 
Published: November 2012

‘Greening’ economic growth discourses are increasingly replacing the catchword of ‘sustainable development’ within national and international policy circles. The core of the argument is that the growth of modern economies may be sustained or even augmented, while policy intervention simultaneously ensures sustained environmental stewardship and improved social outcomes. But how well are these claims scientifically grounded or supported by economic theory, evidence, and applied modeling? We address this question with reference to the economic modeling of climate mitigation policies. We argue that orthodox economic equilibrium and optimization thinking offers, in effect, little support to and insufficiently meaningful interpretations of green growth claims. There are several exciting strands of new economic thinking that are emerging, offering a more robust and empirically validated understanding of the potential for green growth paths. Nonoptimizing simulation models are arguably in a better position to capture socioeconomic system dynamics and the role of macroeconomic policies for sustainability governance. An important caveat, nevertheless, is that when judged against the evidence, greening growth remains to some extent an oxymoron as to date there has been little evidence of substantial decoupling ofGDPfrom carbon‐intensive energy use on a wide scale. Moreover, although the rhetoric on ‘greening the economy’ actively supports the need for policy intervention, the macroeconomic reasoning behind this, remains ambiguous. We finally suggest that, although focusing on the dichotomy between growth and the environment is clearly important, the quality of growth and beyond growth dimensions are at least as important for delivering improved macroeconomic governance for sustainability.This article is categorized under:Energy and Climate > Climate and EnvironmentEnergy and Development > Economics and Policy
Comparison of genetic diversity in the two arctic–alpine plants Diapensia lapponica var. obovata (Diapensiaceae) and Empetrum nigrum var. japonicum (Empetraceae) between Sakhalin in Russian Far East and Jeju Island in Korea, the southernmost edge of their distribution range
Authors: Chung Mi Yoon , López‐Pujol Jordi , Moon Myung‐Ok , Chung Jae Min , Kim Chan Soo , Sun Byung‐Yun , Kim Ki‐Joong , Chung Myong Gi 
Published: November 2012

AbstractWe compared allozyme variation in the two arctic–alpine plants Diapensia lapponica var. obovata and Empetrum nigrum var. japonicum between Sakhalin Island in Russian Far East, within their range core, and the Korean island of Jeju, their world's southernmost distribution. For D. lapponica var. obovata, Sakhalin populations harbored moderate levels of within‐population genetic variation and low among‐population divergence, whereas extremely low levels of within‐population genetic diversity and high among‐population differentiation were found in Jeju Island populations. In contrast, we found moderate levels of within‐population variation and low among‐population differentiation in E. nigrum var. japonicum in both northern populations (those of Sakhalin and an additional population from northern Japan) and Jeju Island populations. Under a similar scenario of immigration history of arctic–alpine plants on Jeju Island during the glacial periods of the Pleistocene and local persistence through glacial/interglacial cycles, the contrasting genetic structure between D. lapponica var. obovata and E. nigrum var. japonicum is mainly attributable to their different life‐history, ecological, and demographic traits: (1) hermaphroditic versus monoecious, dioecious or polygamous, (2) seeds with no adaptations for long‐distance dispersal versus berry‐like drupes dispersed by animals and birds, and (3) a very small patch near the peak of Mt. Halla with a few hundred individuals versus a relatively continuous distribution around the peak of Mt. Halla with numerous individuals. From a conservation perspective, in situ and ex situ conservation measures should be strengthened for D. lapponica var. obovata on Jeju Island given their extreme rarity there.
Acidification of Alperujo Paste Prevents Off‐Odors During Their Storage in Open Air
Authors: Ruiz‐Méndez M. V. , Romero C. , Medina E. , García A. , de Castro A. , Brenes M. 
Published: November 2012

AbstractAlperujo is the main paste produced by the olive oil industry that must be stored in big open air ponds for months before pomace olive oil is extracted. During this period, malodorous 4‐ethylphenol is formed, and it represents a big environmental problem for the oil extracting factories. The aim of this investigation was to prevent the formation of this substance by acidification of the fresh paste. Several batches of fresh Alperujo were stored in 100‐L plastic containers for 6 months without pH control and acidified up to pH 2 or 3. Acidification inhibited the formation of 4‐ethylphenol as well as the growth of yeasts. By contrast, acidification of the paste did not affect oil acidity, triterpenic acid concentration, waxes or fatty acid composition. An increase in hydroxytyrosol of the aqueous phase of Alperujo was also observed because of hydroxytyrosol glucoside hydrolysis. The results indicated that acidification of Alperujo during storage under open air conditions reduced the formation of 4‐ethylphenol, thereby diminishing the environmental impact of the pomace olive oil production.
Two-Categorical Bundles and their Classifying Spaces
Authors: Baas Nils A. , Bökstedt Marcel , Kro Tore August 
Published: November 2012

AbstractFor a 2-category 2C we associate a notion of a principal 2C-bundle. For the 2-category of 2-vector spaces, in the sense of M.M. Kapranov and V.A. Voevodsky, this gives the 2-vector bundles of N.A. Baas, B.I. Dundas and J. Rognes. Our main result says that the geometric nerve of a good 2-category is a classifying space for the associated principal 2-bundles. In the process of proving this we develop powerful machinery which may be useful in further studies of 2-categorical topology. As a corollary we get a new proof of the classification of principal bundles. Another 2-category of 2-vector spaces has been proposed by J.C. Baez and A.S. Crans. A calculation using our main theorem shows that in this case the theory of principal 2-bundles splits, up to concordance, as two copies of ordinary vector bundle theory. When 2C is a cobordism type 2-category we get a new notion of cobordism-bundles which turns out to be classified by the Madsen–Weiss spaces.