bluuebunny/crossref_metadata_2025_split huggingface dataset:
GeoBrush: Interactive Mesh Geometry Cloning
Authors: Takayama Kenshi , Schmidt Ryan , Singh Karan , Igarashi Takeo , Boubekeur Tamy , Sorkine Olga 
Published: April 2011

AbstractWe propose a method for interactive cloning of 3D surface geometry using a paintbrush interface, similar to the continuous cloning brush popular in image editing. Existing interactive mesh composition tools focus on atomic copy‐and‐paste of preselected feature areas, and are either limited to copying surface displacements, or require the solution of variational optimization problems, which is too expensive for an interactive brush interface. In contrast, our GeoBrush method supports real‐time continuous copying of arbitrary high‐resolution surface features between irregular meshes, including topological handles. We achieve this by first establishing a correspondence between the source and target geometries using a novel generalized discrete exponential map parameterization. Next we roughly align the source geometry with the target shape using Green Coordinates with automatically‐constructed cages. Finally, we compute an offset membrane to smoothly blend the pasted patch with C continuity before stitching it into the target. The offset membrane is a solution of a bi‐harmonic PDE, which is computed on the GPU in real time by exploiting the regular parametric domain. We demonstrate the effectiveness of GeoBrush with various editing scenarios, including detail enrichment and completion of scanned surfaces.
Guided Procedural Modeling
Authors: Beneš B. , Št'ava O. , Měch R. , Miller G. 
Published: April 2011

AbstractProcedural methods present one of the most powerful techniques for authoring a vast variety of computer graphics models. However, their massive applicability is hindered by the lack of control and a low predictability of the results. In the classical procedural modeling pipeline, the user usually defines a set of rules, executes the procedural system, and by examining the results attempts to infer what should be changed in the system definition in order to achieve the desired output. We present guided procedural modeling, a new approach that allows a high level of top‐down control by breaking the system into smaller building blocks that communicate. In our work we generalize the concept of the environment. The user creates a set of guides. Each guide defines a region in which a specific procedural model operates. These guides are connected by a set of links that serve for message passing between the procedural models attached to each guide. The entire model consists of a set of guides with procedural models, a graph representing their connection, and the method in which the guides interact. The modeling process is performed by modifying each of the described elements. The user can control the high‐level description by editing the guides or manipulate the low‐level description by changing the procedural rules. Changing the connectivity allows the user to create new complex forms in an easy and intuitive way. We show several examples of procedural structures, including an ornamental pattern, a street layout, a bridge, and a model of trees. We also demonstrate interactive examples for quick and intuitive editing using physics‐based mass‐spring system.
Dynamic Display of BRDFs
Authors: Hullin Matthias B. , Lensch Hendrik P. A. , Raskar Ramesh , Seidel Hans‐Peter , Ihrke Ivo 
Published: April 2011

AbstractThis paper deals with the challenge of physically displaying reflectance, i.e., the appearance of a surface and its variation with the observer position and the illuminating environment. This is commonly described by the bidirectional reflectance distribution function (BRDF). We provide a catalogue of criteria for the display of BRDFs, and sketch a few orthogonal approaches to solving the problem in an optically passive way. Our specific implementation is based on a liquid surface, on which we excite waves in order to achieve a varying degree of anisotropic roughness. The resulting probability density function of the surface normal is shown to follow a Gaussian distribution similar to most established BRDF models.
Blur‐Aware Image Downsampling
Authors: Trentacoste Matthew , Mantiuk Rafal , Heidrich Wolfgang 
Published: April 2011

AbstractResizing to a lower resolution can alter the appearance of an image. In particular, downsampling an image causes blurred regions to appear sharper. It is useful at times to create a downsampled version of the image that gives the same impression as the original, such as for digital camera viewfinders. To understand the effect of blur on image appearance at different image sizes, we conduct a perceptual study examining how much blur must be present in a downsampled image to be perceived the same as the original. We find a complex, but mostly image‐independent relationship between matching blur levels in images at different resolutions. The relationship can be explained by a model of the blur magnitude analyzed as a function of spatial frequency. We incorporate this model in a new appearance‐preserving downsampling algorithm, which alters blur magnitude locally to create a smaller image that gives the best reproduction of the original image appearance.
Paint Mesh Cutting
Authors: Fan Lubin , Lic Ligang , Liu Kun 
Published: April 2011

AbstractWe present a novel progressive painting‐based mesh cut out tool, called Paint Mesh Cutting, for interactive mesh segmentation. Different from the previous user interfaces, the user only needs to draw a single stroke on the foreground region and then obtains the desired cutting part at an interactive rate. Moreover, the user progressively paints the region of interest using a brush and has the instant feedback on cutting results as he/she drags the mouse. This is achieved by efficient local graph‐cut based optimizations based on the Gaussian mixture models (GMM) on the shape diameter function (SDF) metric of the shape. We demonstrate a number of various examples to illustrate the flexibility and applicability of our system and present a user study that supports the advantages of our user interface.
Neuromatrix: The World is Embodied in our Brain
Authors: Thierry Guillaume 
Published: April 2011

AbstractOur brain is an interpreter, probably the most powerful ever conceived by Nature. However, just like every interpreter, it is limited and sometimes it can get things wrong. Most of us take it for granted that what we touch, hear, see, taste and smell is “reality”. But this reality is an illusion, a construct, which only exists in our brain, that is, a mental representation. Indeed, what if we could perceive infrared radiations like Cobras or Predator? What if we could see in very low light like cats? What if we could smell people and foods hidden from view 500 yards away? Surely “reality” would feel much different to us if our sensors and brain were able to extract and process such information from the external world. Even more puzzling is the fact that our senses can betray us completely. This is what happens when we see things that are not there or, on the contrary, when we do not see things that are before our eyes. During this lecture, I will attempt to show how the world in embodied in our brain by looking at examples of interactive visual illusions, by showing the power of attention in defining what we see in the world around us, and by introducing patients with brain lesions or mental illness who perceive the world differently.
Data Visualization: Featuring Interactive Visual Analysis
Authors: Post Frits H. 
Published: April 2011

AbstractData visualization is an application‐driven field, that is always trying to satisfy its customers and to adapt to the demands, cultures, and workflows of many application areas. Therefore, it is difficult to keep focus on techniques and approaches that are not too application specific. A lot of good work on data visualization consists of single‐problem solutions, that cannot be easily merged into general‐purpose systems.In this talk, I will briefly review some current trends and issues, and identify some approaches that are common to many applications. One such approach in data visualization that has attracted interest from the early days is the detection of salient features, or patterns of interest in a data set. The main idea is to extract information at a higher level of abstraction from a mass of data, that is richer in semantics but much smaller in size, and that can help to define scenes and objects for visualization. This idea was pioneered in areas such as flow visualization, but is now more widely applied. It is often considered to be necessity to keep up with the ever rapidly increasing size of data sets, and the demand for interactivity in data visualization and analysis.Another generic approach in data visualization is called interactive visual analysis (TVA), consisting of a strongly interactive multiple‐linked‐view interfaces with integrated, powerful data analysis techniques taken from statistical analysis, pattern recognition, machine learning, and other fields. This is built on the assumptions that a single 2D or 3D visualization is often not enough, and spatial views can be augmented with abstract, derived data spaces; that strong interaction helps to promote insight; and that a better balance is needed between human visual inspection and computer‐based analysis and reasoning. Interestingly, an IVA interface can serve not only as an environment for exploration of low‐level data, but also for defining the high‐level features to be extracted, that should summarize the essence of the data. The high‐level features are usually highly application specific, and can only be found using theories from the application domains. The big challenge is to create environments for general purpose visual data analysis, and yet allow users to introduce advanced theories and methods from many application domains.The trend towards more integration in data visualization will be illustrated with cross‐links between very different areas, such as medical and flow visualization, and the combined use of techniques from scientific visualization and information visualization, and the absorption of other data analysis techniques. Also, historic and contemporary examples of feature extraction and interactive visual analysis will be shown.
Assimilation to a Welfare State: Labor Market Performance and Use of Social Benefits by Immigrants to Finland*
Authors: Sarvimäki Matti 
Published: April 2011

AbstractThis paper documents the economic performance of immigrants in a country characterized by an extensive welfare state and a short immigration history. Upon arrival, immigrants to Finland have substantially lower employment rates than comparable natives. While they experience rapid employment growth, only men from OECD countries catch up with natives. Despite the persisting employment and earnings differences between non‐OECD immigrants and natives, the differences in income transfers disappear in roughly 20 years. The immigrant–native employment gaps are larger in Finland than in Australia, Canada, or the US.
Using the Job Demands–Resources model to investigate risk perception, safety climate and job satisfaction in safety critical organizations
Authors: NIELSEN MORTEN BIRKELAND , MEARNS KATHRYN , MATTHIESEN STIG BERGE , EID JARLE 
Published: April 2011

Nielsen, M. B., Mearns, K., Matthiesen, S. B. & Eid, J. (2011). Using the Job Demands–Resources model to investigate risk perception, safety climate and job satisfaction in safety critical organizations.Scandinavian Journal of Psychology 52, 465–475.Using the Job Demands–Resources model (JD‐R) as a theoretical framework, this study investigated the relationship between risk perception as a job demand and psychological safety climate as a job resource with regard to job satisfaction in safety critical organizations. In line with the JD‐R model, it was hypothesized that high levels of risk perception is related to low job satisfaction and that a positive perception of safety climate is related to high job satisfaction. In addition, it was hypothesized that safety climate moderates the relationship between risk perception and job satisfaction. Using a sample of Norwegian offshore workers (N = 986), all three hypotheses were supported. In summary, workers who perceived high levels of risk reported lower levels of job satisfaction, whereas this effect diminished when workers perceived their safety climate as positive. Follow‐up analyses revealed that this interaction was dependent on the type of risks in question. The results of this study supports the JD‐R model, and provides further evidence for relationships between safety‐related concepts and work‐related outcomes indicating that organizations should not only develop and implement sound safety procedures to reduce the effects of risks and hazards on workers, but can also enhance other areas of organizational life through a focus on safety.
Social skills in women with Turner Syndrome
Authors: SUZIGAN LÍGIA ZUPPI , DE PAIVA E SILVA ROBERTO BENEDITO , GUERRA‐JÚNIOR GIL , MARINI SOFIA HELENA VALENTE LEMOS , MACIEL‐GUERRA ANDRÉA TREVAS 
Published: April 2011

Suzigan, L. Z., Silva, R. B. P., Guerra‐Júnior, G., Marini, S. H. V. L. & Maciel‐Guerra, A. T. (2011). Social skills in women with Turner Syndrome. Scandinavian Journal of Psychology 52, 440–447.The aim of this study was to evaluate the performance of a group of women with Turner Syndrome (TS) in interpersonal situations where several social skills were required, and to compare the results with unaffected sisters. Fifty‐two TS females aged 15–35 years and 33 sisters aged 16–43 were evaluated using Del‐Prette Social Skills Inventory (SSI) and individual interviews. Thirty mothers to subjects and sisters answered questionnaires. It was found that TS girls’ performance in SSI was as good as their sisters’ and even better in meeting new people and facing unknown situations (p = 0.020). Older TS women scored better than younger ones, differently from their sisters. There were no significant correlations between total score of TS women and their age at diagnosis, time of follow‐up and height z‐score. Mothers reported having more problems with TS girls than with sisters. Although TS girls demonstrated having social difficulties, just a few of them spontaneously complained about interpersonal problems in the interview. Results suggest that social difficulties may not cause TS girls major problems nor make them unhappy with their social lives, and/or TS girls may not be able to perceive their own difficulties. Good performance in SSI also suggests that TS girls can identify adequate skills in presented situations and answer in a way to obtain good scores, but they may not necessarily use their skills due to other factors like anxiety and shyness. They may also have a tendency to answer SSI in a way they consider socially desirable, masking their real difficulties.
A differential evolution algorithm for joint replenishment problem using direct grouping and its application
Authors: Wang Lin , He Jing , Zeng Yu‐Rong 
Published: April 2011

AbstractThere has been much work in establishing joint replenishment model and designing effective and robust algorithms. Little research has been done by direct grouping methods. In this paper, we present a differential evolution (DE) algorithm that uses direct grouping to solve joint replenishment problem (JRP). Extensive computational experiments are performed to compare the performances of the DE algorithm with results of evolutionary algorithm (GA). The experimental results indicate that the DE algorithm can find a replenishment policy that incurs a lower total cost than the GA. We also conducted a case study to test the proposed DE algorithm for the JRP. The findings suggest that the proposed model is successful in decreasing spare parts ordering costs and holding costs significantly in a power plant.
Fact and Fiction in EU-Governmental Economic Data
Authors: Rauch Bernhard , Göttsche Max , Engel Stefan , Brähler Gernot 
Published: April 2011

AbstractTo detect manipulations or fraud in accounting data, auditors have successfully used Benford’s law as part of their fraud detection processes. Benford’s law proposes a distribution for first digits of numbers in naturally occurring data. Government accounting and statistics are similar in nature to financial accounting. In the European Union (EU), there is pressure to comply with the Stability and Growth Pact criteria. Therefore, like firms, governments might try to make their economic situation seem better. In this paper, we use a Benford test to investigate the quality of macroeconomic data relevant to the deficit criteria reported to Eurostat by the EU member states. We find that the data reported by Greece shows the greatest deviation from Benford’s law among all euro states.
Studying significance of apoptosis in mediating tolbutamide‐induced teratogenesis in vitro
Authors: Singh Gyanendra , Kumar Akhilesh , Sinha Neeraj 
Published: April 2011

AbstractThe incidence of type 2 diabetes mellitus (non‐insulin‐dependent diabetes mellitus) is growing worldwide and poses a serious public health problem in a current paradigm of changing life style and food habits. Tolbutamide (sulfonylurea) is among the commonly used anti‐diabetic drugs worldwide for treating type 2 diabetes and is known to cause congenital malformations in animals. In this study, the effect of tolbutamide on major organogenesis period and the possible involvement of apoptosis in mediating congenital malformations have been carried out. In the present study design, post‐implantation rat embryos of day 11 were cultured for 24 h with various concentrations of tolbutamide, i.e., 10, 100, and 1000 μg/mL cultures, respectively. The growth and developmental of each embryo was evaluated and compared with control ones for the presence of any malformations. The tolbutamide decreased all growth and developmental parameters in a concentration‐dependent manner, when compared with control. However, exposure to tolbutamide at 10 μg/mL culture did not show any significant effect on embryonic growth and development in vitro. In parallel to this, flow cytometric analysis (cell cycle and annexin V binding) and DNA fragmentation assay were carried out followed by quantitation by 3′‐OH labeling of cultured rat embryos to examine the role of apoptosis in bringing about tolbutamide‐induced teratogenesis. All results were found to be dose dependent and an increase in apoptosis in embryonic tissues may be related to the increased risk of congenital malformations. The outcome of the research suggested that apoptosis might be involved in mediating teratogenesis of tolbutamide in vitro. Further research is warranted to fully understand this mechanism.
Predictors of All‐Cause 1‐Year Mortality in Implantable Cardioverter Defibrillator Patients with Chronic Chagas’ Cardiomyopathy
Authors: TORO DARÍO DI , MURATORE CLAUDIO , AGUINAGA LUIS , BATISTA LUIZ , MALAN ANTONIO , GRECO OSWALDO , BENCHETRIT CHAMIA , DUQUE MAURICIO , BARANCHUK ADRIAN , MALONEY JENNIFER 
Published: April 2011

Background: Implantable cardioverter defibrillators (ICDs) have been used in the treatment of either sustained ventricular tachycardia or ventricular fibrillation in patients with Chagas’ cardiomyopathy. This study aimed at determining mortality rate and risk factors of all‐cause 1‐year mortality in primary and secondary ICD patients with Chagas’ cardiomyopathy.
Methods: One hundred and forty‐eight Chagas’ patients with ICDs were included from the Medtronic ICD Registry Latin America. All patients were followed for 1 year.
Results: At implant, mean age was 60.1 ± 9.4 years and 72.9% were male. Mean left ventricular ejection fraction (LVEF) was 40.1 ± 11%. Mean follow‐up was 12 ± 7 months. During the follow‐up, 15 patients died (10.2%). Patients who died were older (64 ±10.8 years vs 59 ± 9.1; P = 0.04), had more atrial fibrillation (13.3% vs 3.8%; P = 0.02), had lower LVEF (33.4%± 9.8 vs 40.9%± 11.3; P = 0.01), and worse functional class (III/IV 40% vs 21.8%; P = 0.03). The multivariate analysis showed that two independent predictors of all‐cause 1‐year mortality remained statistically significant: age more than 65 (hazard ratio [HR] = 2.85, 95% confidence interval [CI] 1.77–3.92; P = 0.03) and LVEF less than 30% (HR = 2.68, 95% CI 1.57–3.79; P = 0.04).
Conclusion: This analysis showed that patients older than 65 years of age and with LVEF less than 30% were independent predictors of all‐cause 1‐year mortality in patients with chronic Chagas’ cardiomyopathy. (PACE 2011; 34:1063–1069)
Low‐Dose Protamine to Facilitate Earlier Sheath Removal from the Femoral Artery After Peripheral Endovascular Intervention
Authors: HANNA NICHOLAS , FIORILLI PAUL , GAGLIA, Jr. MICHAEL A. , TORGUSON REBECCA , VITA ANTONIA , BEN‐DOR ITSIK , XUE ZHENYI , WAKSMAN RON , BERNARDO NELSON L. 
Published: April 2011

Objectives:
This study aimed to evaluate the safety of low‐dose protamine administration to facilitate earlier vascular sheath removal.
Background:
Vascular access complications are the most common cause of postprocedural morbidity in patients undergoing peripheral endovascular intervention (PEI). Prolonged manual compression and closure devices do not eliminate these complications.
Methods:
A consecutive series of 166 patients who underwent PEI were retrospectively compared to an all‐comers control group of 136 patients who did not receive protamine. The study population received an intravenous dose of protamine based upon the dose of heparin received and the length of the procedure. The arterial sheath was removed when activated clotting time was less than 220 seconds. Primary end‐points included bleeding complications, comprised of groin hematomas and retroperitoneal bleeding, and vascular complications, comprised of pseudoaneurysms, access vessel thrombosis, and arteriovenous fistula formation.
Results:
The study population on average was older than the control group (71 vs. 67 years) and had a higher incidence of hypercholesterolemia (89.8% vs. 76.5%, P = 0.002). The average dose of protamine was 1.9 ± 0.83 mg, with a total dose of heparin of 5371 ± 1327 units. The time until sheath removal was 8.9 ± 8.6 minutes in the protamine group versus 188 ± 118 minutes in the control group (P < 0.001). There were no episodes of protamine anaphylaxis or adverse reactions. The access site complication rate between the 2 groups was statistically insignificant.
Conclusions:
This strategy offers an inexpensive, safe, and reliable method to achieve hemostasis and facilitate earlier sheath removal in patients undergoing PEI. (J Interven Cardiol 2011;24:278–284)
“New” techniques for more sensitive patch testing?
Authors: Dickel Heinrich , Altmeyer Peter , Brasch Jochen 
Published: April 2011

SummaryThe patch test is the mainstay of diagnosis in allergic contact dermatitis. In its nearly 120‐year‐long history, numerous efforts to standardize several methodical aspects proved successful. The aim was always to enhance the validity and reliability of patch testing. This article reviews modifications of the basic patch test technique for enhancing test sensitivity. We expand on the recently validated strip patch test, which is a modification that involves affixing tape strips to the skin and removing them prior to patch testing.Although it was first described in 1953, we proposed the first protocol for standardized performance of the “strip patch test.” The protocol was then tested in studies. As a result, test sensitivity of standardized strip patch test versus patch test was increased. The protocol produced a uniform reduction in the thickness of the stratum corneum and a good inter‐rater agreement. Additionally, there was evidence of a non‐specific stimulation of the inflammatory epidermal system. With regard to patient history, the standardized strip patch test showed a vastly better sensitivity than the patch test with only marginally lower specificity. As a complementary measure to patch testing diagnostic accuracy could be improved significantly by performing the standardized strip patch test. Further studies are needed on the reproducibility of the standardized strip patch test.