bluuebunny/crossref_metadata_2025 huggingface dataset:
Designing an Electronic Supply Chain Management System in an Electronic Market Considering Customer Satisfaction and Logistic
Authors: Fazlollahtabar Hamed , Hajmohammadi Hamed , Mohajeri Amir
Published: August 2012

A supply chain is a network of suppliers, factories, warehouses, distribution centers, and retailers, through which raw materials are received, transformed, produced and delivered to the customer. An effective and efficient way of handling this network is called a Supply Chain Management System (SCMS). The purpose of this study is to design an electronic supply chain system to be capable in an electronic market. Here, the authors consider a supply chain composed of supplier, plant, and customer. The aim is to optimize a real time web-based order-delivery system in which customer satisfaction is noted. As such, a comprehensive web-based order-delivery system in an electronic market is proposed and optimized applying mathematical programming.
Ethernet Motion-Sensor Based Alarm System for Epilepsy Monitoring
Authors: Bonnet Stéphane , Jallon Pierre , Bourgerette Alain , Antonakios Michel , Rat Vencesslass , Guillemaud Régis , Caritu Yanis
Published: August 2012

In several biomedical domains, it would be interesting to monitor subjects over night time using wearable motion sensors and trigger an alarm if a specific movement has been detected by processing the accelerometer readings. In this paper, the authors describe an innovative architecture for such an alarm system in the context of epilepsy monitoring. The main ingredients of the proposed system are wireless motion sensors, a radio-frequency transceiver linked to an Ethernet gateway and an acquisition server that incorporates real-time detection method. This motion analysis system is further integrated in the dataflow of an existing medicalized alarm system and an event is sent to healthcare professionals every time a seizure is detected by the expert system. The EPIMOUV system has been evaluated, during a 6-month period, in a specialized institution with epilepsy pharmaco-resistant residents.
Creating and Using the Knowledge Archive in the Internet Medical Consultant for Decision Support at the Point of Care
Authors: Nakic Draško , Loškovska Suzana
Published: August 2012

The Internet Medical Consultant – IMC is a knowledge sharing system for physicians. The system’s main purpose is to collect and store the communication between its users and to provide easy retrieval of stored information. The system provides access to human generated knowledge at the point of care. Having that kind of knowledge at hand can be very helpful for physicians when they make decisions. This paper describes the process of knowledge capturing, creating and searching the knowledge archive, for final utilisation of that knowledge at point of care. The process of effective knowledge retrieval is represented more thoroughly by several modifications of algorithms for that purpose.
An Architectural Approach to Building Ambient Intelligent Travel Companions
Authors: Yayilgan Sule Yildirim , Blobel Bernd , Petersen Françoise , Hovstø Asbjørn , Pharow Peter , Waaler Dag , Hijazi Younis
Published: August 2012

In theory, persons with impairments including elderly have the same rights of taking part in everyday life activities and society. However in practice, they are at risk of being excluded because of the great number of ICT solutions not addressing the needs of people with impairments. This paper describes a system which provides personalized services supporting people with impairments and patients travelling for medical reasons, work, social contacts, daily outdoor life activities, etc. In this paper, the authors focus on the scenarios, requirements, architecture, integration, requirements fulfillment, and conclusions of building an ambient intelligent travel companions.
Industry Variables Affecting ERP Success and Status
Authors: Peslak Alan R.
Published: August 2012

This manuscript analyzes the views of top financial executives on the information systems (IS) in their organizations and to study the level of enterprise resource planning implementation success and well as current status of activity in ERP systems. Specifically, ERP success and status were studied in 2010 as well as the effect of company size, level of ownership, and industry. An analysis of secondary data obtained from the 2006 and 2010 Financial Executives International comprehensive survey-based research on technology issues for financial executives. The results of this study are further explored deeper in the article.
Realistic Modeling of Resources for a Large-Scale Computational Grid System
Authors: Chen Uei-Ren , Tang Yun-Ching
Published: August 2012

To build a large-scale computational grid resource model with realistic characteristics, this paper proposes a statistical remedy to approximate the distributions of computational and communicational abilities of resources. After fetching the source data of resources including computing devices and networks from the real world, the gamma and normal distributions are employed to approximate probabilities for the ability distribution of grid resources. With this method, researchers can supply the computational grid simulators with required parameters relating to computational and communicational abilities. The experiment result shows that proposed methodology can lead to a better precision according to the error measurement of the simulated data and its source. The proposed method can support existing modern grid simulators with a high-precision resource model which can consider the characteristics of distribution for its computational and communicational abilities in the grid computing environment.
Optimizing Techniques for OpenCL Programs on Heterogeneous Platforms
Authors: Chu Slo-Li , Hsiao Chih-Chieh
Published: August 2012

Heterogeneous platforms that are consisted of CPU and add-on streaming processors are widely used in modern computer systems. These add-on processors provide substantially more computation capability and memory bandwidth than conventional multi-cores platforms. General-purpose computations can also be leveraged onto these add-on processors. In order to utilize their potential performance, programming these streaming processors is challenging because of their diverse underlying architectural characteristics. Several optimization techniques are applied on OpenCL-compatible heterogeneous platforms to achieve thread-level, data-level, and instruction-level parallelism. The architectural implications of these techniques and optimization principles are discussed. Finally, a case study of MRI-Q benchmark will be addressed to illustrate to capabilities of these optimization techniques. The experimental results reveal the speedup from non-optimized to optimized kernel can vary from 8 to 63 on different target platforms.
Performance Modeling of Spatio-Temporal Algorithms Over GEDS Framework
Authors: Cazalas Jonathan , Guha Ratan K.
Published: August 2012

The efficient processing of spatio-temporal data streams is an area of intense research. However, all methods rely on an unsuitable processor (Govindaraju, 2004), namely a CPU, to evaluate concurrent, continuous spatio-temporal queries over these data streams. This paper presents a performance model of the execution of spatio-temporal queries over the authors’ GEDS framework (Cazalas & Guha, 2010). GEDS is a scalable, Graphics Processing Unit (GPU)-based framework, employing computation sharing and parallel processing paradigms to deliver scalability in the evaluation of continuous, spatio-temporal queries over spatio temporal data streams. Experimental evaluation shows the scalability and efficacy of GEDS in spatio-temporal data streaming environments and demonstrates that, despite the costs associated with memory transfers, the parallel processing power provided by GEDS clearly counters and outweighs any associated costs. To move beyond the analysis of specific algorithms over the GEDS framework, the authors developed an abstract performance model, detailing the relationship of the CPU and the GPU. From this model, they are able to extrapolate a list of attributes common to successful GPU-based applications, thereby providing insight into which algorithms and applications are best suited for the GPU and also providing an estimated theoretical speedup for said GPU-based applications.
Decentralized Average Consensus in Wireless Sensor Networks with Unreliable Communication Channels
Authors: Saed Steve , Li Lingxi , Kim Dongsoo S.
Published: August 2012

This study proposes and evaluates an average consensus scheme for wireless sensor networks. For this, two communication error models, the fading signal error model and approximated fading signal error model, are introduced and incorporated into the proposed decentralized average consensus scheme, especially adapted to the constraints of wireless sensor networks. A mathematical analysis is introduced to derive the approximated fading signal model from the fading signal model and different simulation scenarios are introduced and their results analyzed to evaluate the performance of the proposed scheme and its effectiveness in meeting the needs of wireless sensor networks.
Use of Diffusion of Innovations Theory in Medical Informatics Research
Authors: Weigel Fred K. , Rainer R. Kelly , Hazen Benjamin T. , Cegielski Casey G. , Ford F. Nelson
Published: August 2012

The authors examine the use of tenets of diffusion of innovations theory in the medical informatics literature to reveal how the theory has and can continue to provide a basis for scholars seeking to align their research with the theory. A content analysis method was used to examine over 2,000 journal articles from the fields of medical informatics, medicine, and information systems. The authors found that tenets of diffusion of innovations theory were prevalent in the literature. Although several theories are useful in explaining phenomenon in the domain of medical informatics, diffusion of innovation is one such theory that can be applicable to a vast amount of medical informatics research that is focused on new technologies or work processes.
Founding an Organization Theory of Work Policy as Imperative Regimes of Regulated Freedom for ITC Development
Authors: Bruce Raymon R.
Published: August 2012

This paper proposes a theory of imperative regimes of regulated freedom as they relate to the development of policy for Information Communication Technology. Policy is characterized here as an imperative regime of regulated freedom, guiding people in both objective (regulated reasoning) and subjective (heuristic common-sense freedom) decision making to guide communities’ to achieve needed work outcomes. The paper includes: researching organizing as being the practical nature of our work, building a new theory of reorganization for people working, developing human imperative regimes of regulated freedom to guide communities’ work, and developing policies which are societies’ own artifacts helping communities work together. The paper then focuses on the human work domain, which involves policy making governing societies’ cultural and social organizations, in general, and the importance of policymaking for Information Communication Technology, in particular.
Governometrics
Authors: Sharma Sangeeta , Nagar Pankaj
Published: August 2012

The Governometrics is a neologism introduced by the authors to understand the governmental dynamics for policy syntax. The application of statistical tools to analyze and understand various nuances of policy making is imperative for effective implementation of policy. The inputs based on specific needs provide right fulcrum to make rational choices amongst the available alternatives. But essentially for any policy decision ethics is the given value. In this context this article explores writing policy syntax on the basis of moral values which by implication would improve the quality of services. The focus is on designing the conceptual frame of Governometrics to optimize the governance. No literature is available but some references have been included which may be closer to support the application of statistics in the realm of values and service quality.
Polarization and Non-Positive Social Influence
Authors: Li Zhenpeng , Tang Xijin
Published: August 2012

The authors study patterns about group opinions in a group-based society by considering social influence. They classify three types of social influence: positive, neutral, and negative from the perspective of social identity, and investigate to what extent the non-positive social influence leads to group opinion polarization based on the Hopfield network model. Numerical simulations show that opinion in a group-based society would self-organize into bi-polarization pattern under the condition of no imposing external intervention, which is entirely different from the result of drift to an extreme polarization dominant state with single homogenous influence. These results are explained in the study and the authors show that opinions polarization in a group is coexisted with local structure balance.
Designing a Mobile Application for Conceptual Understanding
Authors: Dekhane Sonal , Tsoi Mai Yin
Published: August 2012

This paper describes the development of a mobile application (app) created as a learning tool to help organic chemistry students increase their conceptual understanding of a given topic. The learning needs of organic chemistry students studying the unit “functional groups” were first identified, appropriate learning theories were chosen, and then a working prototype of the mobile application “TsoiChem©” was designed and created using Apple’s iOS Software Development Kit. An iterative development process incorporated several learning theories along with the chemistry students’ feedback into the app’s design so as to best leverage the multi-touch feature of the device. This paper also discusses the preliminary data on the effectiveness of the design elements on student perceptions of the app and students’ conceptual understanding. Future directions for the app and this study are also presented.
Designing Pedagogical Models for Tourism Education
Authors: Vuojärvi Hanna , Eriksson Miikka , Ruokamo Heli
Published: August 2012

The main objective of the TravEd Research project is to develop a pedagogical model that exploits mobile technologies and electronic learning environments and that is applied especially to develop decentralised tourism education in tourist destinations with extremely mobile tourism students. Developmental work on the project will be carried out through design-based research (DBR). The approach to learning arises from the socio-cultural tradition inherent to the activities, culture, context, and environment in which the learning takes place. The focuses of attention are collaborative teaching–studying–learning (TSL) processes during which several types of applications that also enable smartphone use are utilised. This paper presents the theoretical underpinnings of the project and the first cycle of the DBR process that will be carried out during an apprenticeship period aiming to develop a pedagogical model for work-based mobile learning in tourism settings/education.
Recording Mobile Learning
Authors: Rutz Fredrik
Published: August 2012

Data collection in M-TEL (Mobile Technology Enhanced Learning) studies is associated with great challenges, as both the learners and data collectors are mobile. One context for M-TEL is outside the controlled environment of the classroom, meaning disturbing sound and noise from the environment, which forces the research community to re-evaluate how the community collects data. This study evaluates how many audio recording devices are needed when collecting data for a subsequent qualitative analysis of an M-TEL study; in the author’s case through interaction and conversation analysis. The author analyzed how much of one learner’s speech was recorded by an audio recorder attached to that learner, and compared this with how much that learner’s speech was recorded by her peer learners’ audio recorders, as well as by a close-up video camera. This article presents a quantitative analysis of the material from different points of view; consecutive in time, the proximity of the learners, activity of the learners, a union between audio recorders, and a union between video and an audio recorder. The author’s conclusion is that in a group of learners, it is necessary to let every learner carry an audio recorder to sufficiently record their speech for later qualitative analysis.
Foundation of Linear Programming
Authors: Arsham Hossein
Published: August 2012

The aim and scope of this paper are the infusion of purposeful action by decision makers with an explicit understanding of analytical linear programming (LP) tools in order that the managers will implement strategic results correctly. The advances in computing software have brought LP tools to the desktop for a variety of applications to support managerial decision-making. However, it is already recognized that current LP tools do not answer the managerial questions satisfactorily. For instance, there is a costly difference between the mathematical and managerial interpretations of sensitivity analysis. The LP software packages provide sensitivity results about the optimality of a basis and not about the optimality of the values of the decision variables, and the shadow prices that are of interest to the manager. Society has developed the largest sensitivity region based on “optimal solution,” not that which “preserves the basis” that allows for simultaneous dependent/independent changes. The aim and results of this article are found further in the work.
A Swarm Intelligence Method Combined to Evolutionary Game Theory Applied to the Resources Allocation Problem
Authors: Leboucher Cédric , Chelouah Rachid , Siarry Patrick , Le Ménec Stéphane
Published: August 2012

This paper addresses an allocation problem and proposes a solution using a swarm intelligence method. The application of swarm intelligence has to be discrete. This allocation problem can be modelled as a multi-objective optimization problem where the authors minimize the time and the distance of the total travel in a logistic context. This study uses a hybrid Discrete Particle Swarm Optimization (DPSO) method combined to Evolutionary Game Theory (EGT). One of the main implementation issues of DPSO is the choice of inertial, individual, and social coefficients. In order to resolve this problem, those coefficients are optimised by using a dynamical approach based on EGT. The strategies are either to keep going with only inertia, only with individual, or only with social coefficients. Since the optimal strategy is usually a mixture of the three, the fitness of the swarm can be maximized when an optimal rate for each coefficient is obtained. Evolutionary game theory studies the behaviour of large populations of agents who repeatedly engage in strategic interactions. Changes in behaviour in these populations are driven by natural selection via differences in birth and death rates. To test this algorithm, the authors create a problem whose solution is already known. This study checks whether this adapted DPSO method succeeds in providing an optimal solution for general allocation problems.
A Clustering Ant Colony Algorithm for the Long-Term Car Pooling Problem
Authors: Guo Yuhan , Goncalves Gilles , Hsu Tienté
Published: August 2012

Along with the increase of population and the dispersion of habitation, the use of private cars has been increasing drastically. More and more vehicles on the road have caused significant traffic congestion, noise, and energy waste. Car pooling, which is based on the idea that sets of car owners having the same travel destination share their vehicles, has emerged to be a viable possibility for reducing private car usage around the world. This paper describes a clustering ant colony algorithm for solving the long-term car pooling problem. Computational results are given to show the superiority of the authors’ approach compared with other metaheuristics.
Deficiencies in pastoral care with prisoners in Cameroon
Authors: Akih Abraham K. , Dreyer Yolanda
Published: August 2012

Cameroon celebrated fifty years of independence from colonial rule on 20 May 2010. Major problems facing the nation are economic, social and political crises and the appalling condition of its prisons. This article focuses on pastoral care with prisoners in Cameroon. Most churches in Cameroon have no pastoral care programme for prisoners. The churches in general are not yet committed to this kind of work. The article argues that changes and reform of the penitential system will be difficult if not impossible without collaboration with other institutions and resources, which include the different faith communities and faith based organisations. The focus should be on the care and well-being of those within its walls if successful rehabilitation is to take place. Spiritual care will contribute to the general well-being of prisoners. The article gives a broad overview of the situation of prisons and prisoners in Cameroon and presents a pastoral care approach that could contribute to the overall improvement of the lives of people in Cameroon prisons.
Invitations and excuses that are not invitations and excuses: Gossip in Luke 14:18–20
Authors: Van Eck Ernest
Published: August 2012

In modern Western culture, gossip is seen as a malicious activity that should be avoided. In ancient oral-cultures, gossip as a cultural form did not have this negative connotation. Gossip was a necessary social game that enabled the flow of information. This information was used in the gossip network of communities to clarify, maintain and enforce group values, facilitate group formation and boundary maintenance and assess the morality of individuals. Gossip was a natural and spontaneous recurring form of social organisation. This understanding of gossip is used to interpret the two invitations and three excuses in the parable of the Feast (Lk 14:16a–23). The conclusion reached is that gossip, when understood as a social game, can be a useful tool to curb anachronistic and ethnocentristic readings of texts produced by cultures different from that of modern interpreters analysing these texts.
Use of real-time quantitative reverse transcription polymerase chain reaction for the detection of African horse sickness virus replication in Culicoides imicola
Authors: Scheffer Elisabeth G. , Venter Gert J. , Joone Christopher , Osterrieder Nikolaus , Guthrie Alan J.
Published: August 2012

Despite its important role as vector for African horse sickness virus (AHSV), very little information is available on the dissemination of this virus in Culicoides (Avaritia) imicola Kieffer (Diptera: Ceratopogonidae). This study reports on the applicability of a real-time quantitative reverse transcription polymerase chain reaction (RT-qPCR) to detect AHSV in dissected midges. A total of 96 midges were fed on AHSV-infected blood, after which one test group was dissected into head/thorax and abdomen segments immediately after feeding and the other only after 10 days of incubation. The majority of the midges (96%) ingested the virus successfully and there was no significant difference between the virus concentration in the heads/thoraxes and the abdomens immediately after feeding. After incubation, virus was detected in 51% of the midges and it was confined to the abdomen in the majority of these. The fact that virus was detected only in the heads/thoraxes of four Culicoides midges after incubation suggests the presence of a mesenteronal escape barrier. Replication in the salivary glands was not shown. An increase of the mean virus concentration in the abdomen after incubation indicates localised viral replication. The real-time RT-qPCR is recommended for further studies investigating the replication and dissemination of AHSV in Culicoides midges.
Frictionless contact problems for elastic hemitropic solids: Boundary variational inequality approach
Authors: Gachechiladze A. , Gachechiladze R. , Natroshvili David
Published: August 2012

The frictionless contact problems for two interacting hemitropic solids with different elastic properties is investigated under the condition of natural impenetrability of one medium into the other. We consider two cases, the so-called coercive case (when elastic media are fixed along some parts of their boundaries), and the semicoercive case (the boundaries of the interacting elastic media are not fixed). Using the potential theory we reduce the problems to the boundary variational inequalities and analyse the existence and uniqueness of weak solutions. In the semicoercive case, the necessary and sufficient conditions of solvability of the corresponding contact problems are written out explicitly.
On the existence of curves with a triple point on a $K$3 surface
Authors: Galati Concettina
Published: August 2012

Let

(S,H)

be a general primitively polarized

K3

surface of genus p and let

p_a(nH)

be the arithmetic genus of

nH.

We prove the existence in

|\mathcal O_S(nH)|

of curves with a triple point and

A_k

-singularities. In particular, we show the existence of curves of geometric genus

g

in

|\mathcal O_S(nH)|

with a triple point and nodes as singularities and corresponding to regular points of their equisingular deformation locus, for every

1\leq g\leq p_a(nH)-3

and (p,n)

\neq (4,1).

Our result is obtained by studying the versal deformation space of a non-planar quadruple point.
Points of order two on theta divisors
Authors: Marcucci Valeria Ornella , Pirola Gian Pietro
Published: August 2012

We give a bound on the number of points of order two on the theta divisor of a principally polarized abelian variety

A

. When

A

is the Jacobian of a curve

C

the result can be applied in estimating the number of effective square roots of a fixed line bundle on

C

.
Quotients of Fano surfaces
Authors: Roulleau Xavier
Published: August 2012

Fano surfaces parametrize the lines of smooth cubic threefolds. In this paper, we study their quotients by some of their automorphism sub-groups. We obtain in that way some interesting surfaces of general type.
Airborne observations of aerosol microphysical properties and particle ageing processes in the troposphere above Europe
Authors: Hamburger T. , McMeeking G. , Minikin A. , Petzold A. , Coe H. , Krejci R.
Published: August 2012

Abstract. In-situ measurements of aerosol microphysical properties were performed in May 2008 during the EUCAARI-LONGREX campaign. Two aircraft, the FAAM BAe-146 and DLR Falcon 20, operated from Oberpfaffenhofen, Germany. A comprehensive data set was obtained comprising the wider region of Europe north of the Alps throughout the whole tropospheric column. Prevailing stable synoptic conditions enabled measurements of accumulating emissions inside the continental boundary layer reaching a maximum total number concentration of 19 000 particles cm−3 stp. Nucleation events were observed within the boundary layer during high pressure conditions and after updraft of emissions induced by frontal passages above 8 km altitude in the upper free troposphere. Aerosol ageing processes during air mass transport are analysed using trajectory analysis. The ratio of particles containing a non-volatile core (250 °C) to the total aerosol number concentration was observed to increase within the first 12 to 48 h from the particle source from 50 to 85% due to coagulation. Aged aerosol also features an increased fraction of accumulation mode particles of approximately 40% of the total number concentration. The presented analysis provides an extensive data set of tropospheric aerosol microphysical properties on a continental scale which can be used for atmospheric aerosol models and comparisons of satellite retrievals.
Eddy covariance emission and deposition flux measurements using proton transfer reaction-time of flight-mass spectrometry (PTR-TOF-MS): comparison with PTR-MS measured vertical gradients and fluxes
Authors: Park J.-H. , Goldstein A. H. , Timkovsky J. , Fares S. , Weber R. , Karlik J. , Holzinger R.
Published: August 2012

Abstract. During summer 2010, a proton transfer reaction-time of flight-mass spectrometer (PTR-TOF-MS) and a standard proton transfer reaction mass spectrometer (PTR-MS) were deployed simultaneously for one month in an orange orchard in the Central Valley of California to collect continuous data suitable for eddy covariance (EC) flux calculations. The high time resolution (5 Hz) and high mass resolution (up to 5000 m Δ m−1) data from the PTR-TOF-MS provided the basis for calculating the concentration and flux for a wide range of volatile organic compounds (VOC). Throughout the campaign, 664 mass peaks were detected in mass-to-charge ratios between 10 and 1278. Here we present PTR-TOF-MS EC fluxes of the 27 ion species for which the vertical gradient was simultaneously measured by PTR-MS. These EC flux data were validated through spectral analysis (i.e. co-spectrum, normalized co-spectrum, and ogive). Based on inter-comparison of the two PTR instruments, no significant instrumental biases were found in either mixing ratios or fluxes, and the data showed agreement within 5% on average for methanol and acetone. For the measured biogenic volatile organic compounds (BVOC), the EC fluxes from PTR-TOF-MS were in agreement with the qualitatively inferred flux directions from vertical gradient measurements by PTR-MS. For the 27 selected ion species reported here, the PTR-TOF-MS measured total (24 h) mean net flux of 299 μg C m−2 h−1. The dominant BVOC emissions from this site were monoterpenes (m/z 81.070 + m/z 137.131 + m/z 95.086, 34%, 102 μg C m−2 h−1) and methanol (m/z 33.032, 18%, 72 μg C m−2 h−1). The next largest fluxes were detected at the following masses (attribution in parenthesis): m/z 59.048 (mostly acetone, 12.2%, 36.5 μg C m−2 h−1), m/z 61.027 (mostly acetic acid, 11.9%, 35.7 μg C m−2 h−1), m/z 93.069 (para-cymene + toluene, 4.1%, 12.2 μg C m−2 h−1), m/z 45.033 (acetaldehyde, 3.8%, 11.5 μg C m−2 h−1), m/z 71.048 (methylvinylketone + methacrolein, 2.4%, 7.1 μg C m−2 h−1), and m/z 69.071 (isoprene + 2-methyl-3-butene-2-ol, 1.8%, 5.3 μg C m−2 h−1). Low levels of emission and/or deposition (<1.6% for each, 5.8% in total flux) were observed for the additional reported masses. Overall, our results show that EC flux measurements using PTR-TOF-MS is a powerful new tool for characterizing the biosphere-atmosphere exchange including both emission and deposition for a large range of BVOC and their oxidation products.
Drifting snow climate of the Greenland ice sheet: a study with a regional climate model
Authors: Lenaerts J. T. M. , van den Broeke M. R. , van Angelen J. H. , van Meijgaard E. , Déry S. J.
Published: August 2012

Abstract. This paper presents the drifting snow climate of the Greenland ice sheet, using output from a high-resolution (∼11 km) regional climate model. Because reliable direct observations of drifting snow do not exist, we evaluate the modeled near-surface climate instead, using automatic weather station (AWS) observations from the K-transect and find that RACMO2 realistically simulates near-surface wind speed and relative humidity, two variables that are important for drifting snow. Integrated over the ice sheet, drifting snow sublimation (SUds) equals 24 ± 3 Gt yr−1, and is significantly larger than surface sublimation (SUs, 16 ± 2 Gt yr−1). SUds strongly varies between seasons, and is only important in winter, when surface sublimation and runoff are small. A rapid transition exists between the winter season, when snowfall and SUds are important, and the summer season, when snowmelt is significant, which increases surface snow density and thereby limits drifting snow processes. Drifting snow erosion (ERds) is only important on a regional scale. In recent decades, following decreasing wind speed and rising near-surface temperatures, SUds exhibits a negative trend (0.1 ± 0.1 Gt yr−1), which is compensated by an increase in SUs of similar magnitude.
Variability of mass changes at basin scale for Greenland and Antarctica
Authors: Barletta V. R. , Sørensen L. S. , Forsberg R.
Published: August 2012

Abstract. During the last decade, the GRACE mission has provided valuable data for determining the mass changes of the Greenland and Antarctic ice sheets. Yet, discrepancies still exist in the published mass balance results, and analyses on the sources of errors and discrepancies are lacking. Here, we present monthly mass changes together with trends derived from GRACE data at basin scale for both the Greenland and Antarctica ice sheets and we assess, for the first time systematically, the variability and errors for each of the possible sources of discrepancies: mass inference methods, data sets and background models. We find a very good agreement between the monthly mass change results derived from two independent methods, which represents a cross validation. For the monthly solutions, we find that most of the variability is caused by the use of different data sets rather than different methods. Besides the well-known GIA trend uncertainty, we find that the degree-1 variability and the recent de-aliasing corrections have significant impact on monthly time series and trends respectively. We also show the remarkable differences between the use of release RL04 and the new RL05, and how the latter results in smaller mass trends for the majority of the basins. The overall variability of the solutions well exceeds the uncertainties propagated from the data errors and the leakage (as done in the past), hence we calculate new sound total errors for the monthly solutions and the trends. For the whole GRACE period our trend estimate for Greenland is −234 ± 20 Gt yr−1 and −83 ± 36 Gt yr−1 for Antarctica (−111 ± 15 Gt yr−1 in the western part). These trends show a clear (with respect to our errors) increase of mass loss in the last four years.
Sanctity and Identity:
Authors: Mary Marshall Campbell
Published: August 2012

With her Liber Revelationum Elisabeth de Sacro Exercitu Virginum Coloniensium (Book of Revelations), Elisabeth von Schönau establishes the authenticity of the relics of St. Ursula and the eleven thousand virgins, which had been discovered some fifty years prior to the text's composition. In this article, I demonstrate how Elisabeth's text accomplishes this work of authentication: it weds divine revelation to emergent modes of legal proof in order to authenticate the Ursuline relics. Furthermore, its bipartite structure in which sets of halves are produced so as to be reunified is rhetorically analogous to the chirograph, a legal instrument for document authentication.
A Byzantine Theodidact:
Authors: Jim McInnes
Published: August 2012

The Byzantine mystic Symeon the New Theologian claimed to be a theodidact: one taught by God. This article examines the rationale and experiential theological method that underwrote this claim. Symeon contended with scholastic theologians over the role of the Holy Spirit in illuminating believers and inspiring their speech. The New Theologian's mystical definition of a theodidact raises the problem of subjective experience in relation to teaching authority, which is addressed by exploring Symeon's own insistence that Orthodox tradition, Scripture, and a holy life safeguard the inspired teacher against self-authentication, error, and hypocrisy.
Liberalization and Strategic Change in Air Transport: An Examination of Current and Future Variations in Tourist Traffic to and from Egypt Resulting from Policy Changes at EgyptAir
Authors: O'Connell John F. , Warnock-Smith David
Published: August 2012

The purpose of this study is to explore the impact of changes in EgyptAir's corporate strategy on its role and significance in relation to the Egyptian tourism sector. In-depth open interviews with top-level personnel were combined with a before–after time-series analysis of key market data in order to identify any early effects of EgyptAir's strategic changes on important international markets for inbound and outbound tourism. The study's major finding is that EgyptAir has taken some significant steps to target higher-yielding tourist passengers travelling from Egypt to Europe, Asia and North America and vice versa by fortifying its position at Cairo, improving its overall service offering and joining the world's largest strategic airline alliance (Star Alliance). Some early gains have been noted in these markets for EgyptAir, while at the same time an avoidance strategy has been noted in relation to lower-yield package holiday-makers who, despite forming a growing share of total demand, are already served by a highly competitive mix of foreign charter and scheduled airlines. Tourist numbers were found to increase after the strategic changes at EgyptAir. This increase was either facilitated directly by EgyptAir or indirectly as other carriers took advantage of the additional opportunities to serve markets that were dominated or neglected by EgyptAir prior to its air policy induced change of strategic direction. The general push towards liberalization in the wider Middle East region also partly led to these strategic changes.
Impacts of High Oil Prices on Tourism in New Zealand
Authors: Lennox James
Published: August 2012

Global oil supply is unlikely to meet rapidly growing global demand unless oil prices rise significantly. In New Zealand, a high oil price future threatens the tourism sector, which is a major source of export income. Using a two-stage general equilibrium modelling approach, the long-run economic effects of a permanent decline in the global oil supply are quantified. The tourism sector and especially tourism exports are disproportionately affected, due to a combination of income and price effects. Impacts differ significantly by inbound tourist market segments. The most distant markets are more adversely affected, but distance is only one of several important factors.
Symmetry Reduction, Exact Solutions, and Conservation Laws of the ZK-BBM Equation
Authors: Zhang Wenbin , Zhou Jiangbo , Kumar Sunil
Published: August 2012

Employing the classical Lie method, we obtain the symmetries of the ZK-BBM equation. Applying the given Lie symmetry, we obtain the similarity reduction, group invariant solution, and new exact solutions. We also obtain the conservation laws of ZK-BBM equation of the corresponding Lie symmetry.
Humanos e não-humanos no universo transformacional dos ribeirinhos do rio Tapajós – Pará
Authors: Valentin Wawzyniak João
Published: August 2012

A partir de dados etnográficos resultantes da pesquisa de campo realizada, entre 2005 e 2007, em comunidades situadas às margens do baixo rio Tapajós, Pará, esta comunicação abordará a dimensão social da relação entre humanos e não-humanos presente na cosmologia e no cotidiano dos ribeirinhos nelas residentes. Os princípios orientadores dessa relação são fornecidos pelo sistema cultural que postula a não existência de dicotomia ou antagonismo entre as dimensões natural, cultural e sobrenatural, mas, em seu lugar, postula um universo transformacional e povoado por uma pluralidade de agentes, humanos e não humanos. Tais seres, com poder de encantamento e agenciamento, transformam-se, em certas circunstâncias, uns nos outros. Transfiguram suas aparências e comportamentos, regulam e afetam o corpo e a vida cotidiana individual e coletiva. Nesse contexto etnográfico, algumas qualidades de seres — animais, humanos, objetos, espíritos e instituições — são apreendidas como pessoas com quem podem estabelecer relações sociais, particularmente “acordos”.
Gênero, genealogias & as novas famílias
Authors: Corrêa Mariza
Published: August 2012

Será que as novas famílias que temos estudado ultimamente são tão “novas” assim? Alguns exemplos sobre a história contada por alguns intelectuais ingleses, ou americanos na Europa, ou sobre eles, sugere que arranjos os mais variados são testados há muito tempo por casais ou grupos sociais que, no entanto, ainda se apresentam como “famílias” – e também registram suas genealogias na sua forma mais tradicional, “esquecendo” relações que não tenham dado origem a descendentes, ou, que ainda que o tenham, são relações pouco convencionais. Também vale a pena perguntarmos se a nossa forma tradicional de apresentar genealogias não induz, pela própria estrutura formal por nós aprendida, a esses apagamentos da história.
Transformações sociais e econômicas e a mudança na configuração do campo político local no município de Caraguatatuba (SP)
Authors: Souza Samuel Candido de
Published: August 2012

O campo político, como todos os outros campos sociais, recebe influências do mundo exterior, o que torna possível a vida política. Mudanças sociais e econômicas alteram a forma como o campo político se apresenta, ao modificar as condições para o acesso e o sucesso dentro dele. Esse artigo procura analisar como as transformações sociais e econômicas sofridas pelo município de Caraguatatuba, no período correspondente aos anos de 1970 a 2000, alteraram o perfil social dos principais agentes políticos locais, enfatizando os processos de inserção política de agentes sociais no que se refere aos mecanismos de reconversão de recursos sociais em capital político.
Os regimes políticos e as guerras civis: uma discussão metodológica
Authors: Freire Danilo
Published: August 2012

A guerra civil é uma das formas de violência coletiva mais importante de nossa época. Embora a literatura tenha destacado a relação entre determinadas variáveis e o início das guerras civis, a influência dos regimes políticos nos conflitos internos ainda é controversa. O presente estudo visa colaborar para esse debate. Os objetivos deste artigo são: discutir as definições contemporâneas de guerras civis; avaliar, criticamente, as bases quantitativas mais comuns nos estudos de política comparada e comentar sua adequação para as pesquisas sobre guerras civis e; por último, sugerir possíveis soluções metodológicas que poderiam ser utilizadas para analisar, com mais precisão, o impacto dos regimes no início das guerras civis.
A posição original, o contratualismo e o “transcendentalismo institucional”: a nova crítica de Sen a Rawls
Authors: Roberto Germano Santos Arthur
Published: August 2012

O artigo pretende investigar a contribuição crítica mais recente do economista indiano Amartya Sen à obra do filósofo político americano John Rawls, interlocutores de longa data. Sen renova o debate com o último em seu livro mais recente, A idéia de Justiça, obra em que retoma a discussão com Rawls para demonstrar o que ele compreende como limitações manifestas dos procedimentos utilizados pelo filósofo para construir a sua teoria da justiça, notadamente o mecanismo da posição original. Com este trabalho, pretendo demonstrar as limitações da própria crítica de Sen, discutindo, para isso, pontos específicos da obra de Rawls.
Os problemas biopolíticos contemporâneos em Nikolas Rose
Authors: Freitas Gimenes Gabriel de
Published: August 2012

The politics of life itself: biomedicine, power, andsubjectivity in the twenty-first century.Princeton: Princeton University Press, 2007.
Redes xamânicas, curanderismo e processos interétnicos: uma análise comparativa
Authors: Jean Langdon Esther
Published: August 2012

Este artigo examina os fatores históricos, sociais e demográficos que contribuíram para as mudanças dos papéis dos xamãs entre dois grupos indígenas da Colômbia. Os xamãs do vale do Sibundoy fortaleceram seu papel de cura durante o século XX por meio da articulação com as práticas terapêuticas da medicina popular conhecida como curanderismo. Entretanto, durante o mesmo período, os xamãs Siona, que habitam as terras baixas da Amazônia, perderam sua posição de líderes políticoreligiosos, e cessaram de praticar seus rituais durante duas décadas. Por meio desta comparação, argumenta-se que o xamanismo deve ser visto como um fenômeno constantemente em mudança, que emerge das interações entre fatores sociais, culturais, históricos e demográficos em situações específicas. O papel do xamã não é um fenômeno homogêneo, mas um que está em construção contínua, dependente da ação dos atores sociais em contextos particulares.
Advances in Epilepsy Genetics and Genomics
Authors: Kearney Jennifer A.
Published: August 2012

Current and emerging technologies for mutation identification are changing the landscape of genetics and accelerating the pace of discovery. Application of high throughput genomic analysis to epilepsy will advance our understanding of the genetic contribution to common forms of epilepsy and suggest novel therapeutic strategies for improved treatment.
AED Treatment through Different Ages: As Our Brains Change, Should Our Drug Choices Also?
Authors: French Jacqueline A. , Staley Brigid A.
Published: August 2012

Patient age can impact selection of the optimal antiepileptic drug for a number of reasons. Changes in brain physiology from neonate to elderly, as well as changes in underlying etiologies of epilepsy, could potentially affect the ability of different drugs to control seizures. Unfortunately, much of this is speculative, as good studies demonstrating differences in efficacy across age ranges do not exist. Beyond the issue of efficacy, certain drugs may be more or less appropriate at different ages because of differing pharmacokinetics, including changes in hepatic metabolism, absorption, and elimination. Lack of appropriate drug formulations (such as liquid forms) may be a barrier to using drugs in the very young. Finally, some serious adverse events are seen either exclusively or preferentially at different ages.
ARTE E GÊNERO ANDROGINIDADE: A DIALÉTICA DO APOGEU
Authors: Lyra Sonia
Published: August 2012

Método, método, que queres de mim? Bem sabes que comi do fruto do inconsciente,diz Jules Laforgue, em seu Moralités Légendaires. O método e a imagem evocam a psicologia do maravilhamento entre o feminino e o masculino na esperança de reanimar o encontro numa nova dialética: andrógina! Não serão abordadas aqui as dimensões físico-biológicas do masculino e do feminino, ainda que não sejam exclusas, mas como diz Henri Bosco em Un rameau de la nuit: as inexauríveis reservas de vida latente que vamos buscar no feminino, sustentado pela força masculina do verbo: anima e animus. A paz dos gêneros, comenta Gaston Bachelard, é procurada pela sabedoria atrativa do esposo e a gravitação amorosa da esposa, a verdadeira situação espiritual,tão terrível e tão bela!
Tendências e relações entre a orientação sexual e o Cristianismo no Brasil
Authors: Câmara Uipirangi Franklin da Silva
Published: August 2012

O presente artigo tem como pano de fundo um projeto que procura apresentar alternativas teológicas que deem conta de pensar a possibilidade e viabilidade de que pessoas homossexuais possam expressar sua espiritualidade de forma livre e completa nas comunidades cristãs brasileiras. Nesse sentido, procura apresentar um panorama da homossexualidade no Brasil, pontuando momentos diversos, valores, projetos e colocando em relevo a questão da identidade homossexual, principalmente, uma referência à mesma como perversão, anormalidade, crime e doença, reservando às pessoas homossexuais, o estigma, marginalização e exclusão. O texto procurará pontuar a busca por uma identidade alternativa por parte das pessoas homossexuais, tanto do ponto de vista teórico, procurando novas possibilidades conceituais, quanto do ponto de vista político, articulando-se em busca de seus direitos como cidadãos.