Miracle-dz/UniFAR-FTUs huggingface dataset:
Paper Projector and Camera Calibration Method for Oneshot Scan System with Static Pattern Projector and Monochrome Camera

In recent years, development on 3D measurement system using a projector and a camera becomes popular. Among them, one-shot scan which requires only a single shot with static pattern becomes important and intensively researched because of the strong demand on capturing moving objects like human. One critical issue for the system is a calibration of the devices, because projectors cannot capture an image, and thus, indirect way to get correspondences between a pixel of the pattern and a 3D point in the scene is required. The typical solution is to capture a special calibration object on which temporally encoded patterns are projected by a projector. However, for one-shot scan, since the pattern is static and cannot be changed, the techniques cannot be applied. In the paper, we extend the plane based method and detection method, with an adaptive binarization and global optimization for efficient separation and detection of overlapped markers. Experimental results are shown to prove the effectiveness of the method.
Availability in the Echo File System

The Echo file system project explored several issues in the design and implementation of distributed file systems. This paper describes the aspects of the Echo design that are related to providing high availability. These aspects include the provision of redundant components (replicated disks and backup servers), the replication of information, and recovery from failures. Further, we discuss some less obvious mechanisms needed for providing truly high availability: load control, dynamic reconfiguration of the system, and the detection and reporting of faults. Finally, we discuss some of the impact of our availability mechanisms on application software.
“ Exploring deep neural network models of syntax with a focus on Greek ”

Part-of-speech tagging (POS tagging) and dependency parsing are fundamental syntax tasks in the field of Natural Language Processing. POS tagging is the process of assigning a tag (e.g. noun, verb, etc.) to each word in a sentence. Dependency parsing aims to automatically analyze the dependency structure of a sentence. This thesis involves the implementation and evaluation of a POS tagger and a dependency parser, with a focus on Greek. Both models utilize deep neural network architectures in order to produce state of the art performance. Our POS tagger produces near state of the art performance in the Greek language. Our dependency parser produces state of the art performance in the Greek and near state of the art performance in English and Bulgarian.
Classifying digitized art type and time period

Millions of art images have been digitized over the last several decades. This has created new opportunities for art scholars and historians. However, searching and navigating these art images is difficult because of the sparsity of metadata and contextual information used to describe these images. Unless one knows the exact title and artist, finding related artwork is a difficult task. The research in this project addresses this challenge by developing unsupervised computer vision methods that generates metadata automatically from artworks. Our dataset includes more than 300,000 art images from three sources: the Metropolitan Museum of Art, WikiArt and Artsy, an online art collection platform. If successful, we plan to build an interactive interface for exploring the extracted features and developing a recommendation system that can be used by art historians, scholars, and art aficionados.
Games And Simulations in Online Learning: Research and Development Frameworks

Nearly all early learning happens during play, and new technology has added video games to the list of ways children learn interaction and new concepts. Although video games are everywhere - on Web sites, in stores, streamed to the desktop, on television - they are absent from the classroom. Computer-based simulations, a form of computer games, have begun to appear, but they are not as wide-spread as email, discussion threads, and blogs.
of Bank Marketing Determinants of co-creation in banking services

Purpose – The purpose of this paper is to identify the factors that favor the activity of co-creation with customers in the banking sector. The way in which consumers co-create with banking organizations was also examined. Design/methodology/approach – The “dialogue, access, risk and transparency” model was employed with the variables dialogue, access, risk assessment and transparency, as per Prahalad and Ramaswamy (2004). The final data sample accounted for 265 clients of a large Brazilian bank and multiple linear regression was used to analyze the data. Findings – The results indicated a significant and positive association with access, risk assessment and transparency when the bank co-created with these clients. Dialogue did not appear significantly affect to the co-creative process between clients and the bank. Research limitations/implications – The study was conducted with customers of only one major Brazilian bank. The authors recommend that the same study is conducted in other retail banks, investment banks and smaller banks, with a specialized focus. Limitations notwithstanding, the outstanding findings of this research relate to customer perceptions, which, it should be noted, do not necessarily reflect the totality of the relationship between client and bank. Originality/value – Understanding co-creation in the banking sector is a new learning perspective on consumer behavior and interactions within the service production process. The justification and relevance of this study derive from the construction of this knowledge and the scarcity of empirical work in this area.
In vitro reconstitution of nucleosome arrays with a stoichiometric content of histone octamer and linker histone ( PROT 42 )

Whilst great insights into the structure and properties of chromatin have been gained using chromatin samples extracted from native sources, analyses of such material have limitations because of their inherent heterogeneity. Native chromatin samples contain an ensemble of different core histones, linker histones and their variants, and other chromatin-associated proteins, all of which are adorned by a plethora of post-translational modifications. The DNA from these sources is also highly variable, prescribing varying and irregular nucleosome repeat lengths. Indeed, this heterogeneity is a consequence of the critical role that chromatin plays in the regulation of DNA transcription and replication, where local chromatin environments are tailored to suit the particular needs of a given DNA locus.
A New N-FINDR Algorithm and the unmixR Package for Spectral Unmixing

In spectral unmixing, a data set X composed of n observed spectra of chemical mixtures with p wavelengths or spectral bands is decomposed to identify pure component spectra. Each spectrum is assumed to be a linear mixture of a limited number m of pure component spectra, in this context also referred to as endmembers. m is also known as chemical rank of the spectra matrix X. In matrix notation, this is the bilinear model X x p) = A x m) E x p) + ε. The concentrations or abundances A can be depicted in the mixture diagram of the m components, forming an (m 1) simplex. Also the spectra X lie in an (m – 1) simplex. If noise is low and pure component spectra are present in the data, this decomposition can be obtained by finding the corners of the simplex. Two well-known algorithms to achieve this are NFINDR [1] and Vertex Component Analysis [2]. N-FINDR is a rather slow iterative algorithm. While VCA is much faster, we find that it does not always yield as good decompositions. A number of improved algorithms are known [3, 4]. In addition, we present a new N-FINDR algorithm that uses a fast projection and is particularly suitable for implementation in high-level languages such as R or Matlab where optimized and parallelized BLAS routines can be used but loops are computationally expensive.
Design strategies for tissue engineering scaffolds

This thesis focuses on various aspects involved in scaffold design and the cell-scaffold interaction. The ultimate goal is to design a scaffold that supports functional tissue formation, resembling in vivo tissue organization, combined with good nutrient supply to the cells. In our concept 3D multi-layer scaffolds are developed consisting of porous micropatterned sheets fabricated by one-step method phase separation micromolding (PSµM). In these multi-layer scaffolds, the cells grow within micropatterned channels giving clear direction to the cells inducing cell organization. Subsequent stacking of these sheets results in 3D scaffolds where the microchannels also provide space for nutrient perfusion throughout the complete scaffold. The porosity of the individual layers enables diffusion of nutrients and signalling factors between the layers. First, an overview is presented of commonly applied biomaterials as well as fabrication techniques to process these materials into scaffolds, which in contrast to PSµM generally only incorporate or porosity or surface topography. Subsequently, the understanding and optimization of the PSµM processing conditions are considered to obtain these micropatterned porous scaffold sheets of distinct polymers varying largely in material properties, of which poly(L-lactic acid) (PLLA) is the most commonly applied. Adapting PSµM process parameters yields micropatterned sheets expressing a wide variety of porosities and morphologies. With respect to the cell-material interactions, the results reveal clear organization of the cells for distinct surface topographies, independently of the scaffold material. In addition, a detailed study is presented that relates the influence of scaffold material and micropatterning to surface wettability and protein adsorption, and in turn their effect on cell attachment, proliferation and morphology. Furthermore, we present a new high-throughput screening concept of a large surface characteristics library to enable selection of surface characteristics that elicit an appropriate bio-active response required for a specific application. Finally, the transport of nutrients throughout the 3D multi-layer scaffold is studied under both static as well as dynamic (perfusion) conditions. Nutrient perfusion through the microchannels of the scaffold clearly revealed improved cell viability and proliferation at the distinct layers showing the excellent potential of the multi-layer 3D scaffolds as proposed in this thesis.
SCHEDULING MULTIPLE OPERATING ROOMS UNDER UNCERTAINTY

Operating room (OR) scheduling is an important operational problem for most hospitals. Uncertainty in the surgery delivery process, the existence of multiple resources and competing performance criteria are among the important aspects of OR scheduling problems in practice. Considering these aspects, this dissertation focuses on developing and efficiently solving novel stochastic programming models for multi-OR scheduling problems under uncertainty in surgery durations. We first consider a stochastic multi-OR scheduling problem with multiple surgeons where the daily scheduling decisions are made before the resolution of uncertainty. We formulate the problem as a two-stage stochastic mixed-integer program that minimizes the sum of the fixed cost of opening ORs and the expected overtime and surgeon idling cost. Decisions in our model include the number of ORs to open, the allocation of surgeries to ORs, the sequence of surgeries in each OR, and the start times for surgeons. Realistic-sized instances of our model are difficult or impossible to solve with standard stochastic programming techniques. Therefore, we exploit several structural properties of our model and describe a novel set of widely applicable valid inequalities to achieve computational advantages. We use our results to quantify the value of capturing uncertainty and the benefit of pooling ORs, and to demonstrate the impact of parallel surgery processing on surgery schedules. We then consider a stochastic multi-OR scheduling problem where the initial schedule is revised at a prespecified rescheduling point during the surgical day. We formulate the problem as a three-stage stochastic mixed-integer program that minimizes the sum of the fixed cost of opening ORs and the expected overtime cost. The number of ORs to open and the allocation of surgeries to ORs are the first-, and the revisions on the allocation of surgeries to ORs are the second-stage decisions in our model. For our computational study, we consider a special case, which is a two-stage stochastic mixed-integer program, where rescheduling decisions are made under perfect information. We use stage-wise and scenario-wise decomposition methods to solve our model. By using our results, we estimate the value of rescheduling, and illustrate the impact of different surgery sequencing rules on this value.
Membrane Potential of CA 3 Hippocampal Pyramidal Cells During Postnatal Development

Roman, Tyzio, Anton Ivanov, Christophe Bernard, Gregory L. Holmes, Yehezkiel Ben-Ari, and Roustem Khazipov. Membrane potential of CA3 hippocampal pyramidal cells during postnatal development. J Neurophysiol 90: 2964–2972, 2003. First published July 16, 2003; 10.1152/jn.00172. 2003. A depolarized resting membrane potential has long been considered to be a universal feature of immature neurons. Despite the physiological importance, the underlying mechanisms of this developmental phenomenon are poorly understood. Using perforated-patch, whole cell, and cell-attached recordings, we measured the membrane potential in CA3 pyramidal cells in hippocampal slices from postnatal rats. With gramicidin perforatedpatch recordings, membrane potential was 44 4 (SE) mV at postnatal days P0–P2, and it progressively shifted to 67 2 mV at P13–15. A similar developmental change of the membrane potential has been also observed with conventional whole cell recordings. However, the value of the membrane potential deduced from the reversal potential of N-methyl-D-aspartate channels in cell-attached recordings did not change with age and was 77 2 mV at P2 and 77 2 mV at P13–14. The membrane potential measured using whole cell recordings correlated with seal and input resistance, being most depolarized in neurons with high, several gigaohms, input resistance and low seal resistance. Simulations revealed that depolarized values of the membrane potential in whole cell and perforated-patch recordings could be explained by a shunt through the seal contact between the pipette and membrane. Thus the membrane potential of CA3 pyramidal cells appears to be strongly negative at birth and does not change during postnatal development.
WP 5 / 08 SEARCH WORKING PAPER Values and Attitudes Towards Innovation Among

This study investigated relations of basic personal values to attitudes towards innovation among students in Russia, Canada, and China. Participants completed a questionnaire that included the SVS measure of values (Schwartz, 1992) and a new measure of attitudes towards innovation (Lebedeva, Tatarko, 2009). There were significant cultural and gender-related differences in value priorities and attitudes to innovation among the Canadian, Russian, and Chinese college students. As hypothesized, across the full set of participants, higher priority given to Openness to change values (self-direction, stimulation) was related to positive attitudes toward innovation whereas higher priority given to Conservation values (conformity, security) was related negatively to attitudes toward innovation. This result is compatible with the findings reported by other researchers (Shane, 1992; Dollinger et al.,, 2007). There were, however, culture-specific variations in some of these associations, which may be explained by cultural differences in value priorities and implicit theories of creativity. Applying the Multiple-Group Multiple Indicators Multiple Causes Model (Muthen 1989) we have found that the type of mediation between sociodemographic factors and attitudes to innovation is different in the three samples. Whereas in Russia and Canada the effects of gender and age are fully mediated by the values, this is not true for China, where a direct effect of gender on innovation was found. The cultural differences in values, implicit theories of innovation, and attitudes to innovation are discussed.
The Relationship Between Physical Activity Classroom-based Lessons and Students Time-on-task

This research study focused on the relationship between physical activity in the classroom and students' time-on-task behavior. Students' levels of onand off-task behavior were compared during typical school days and days in which students received some sort of physical activity instruction. A total of three classes of approximately fifty students were used in data collection through observations and individual student interviews . The resulting data contributed answers to the following questions: Does increased physical activity through movement in classroom lessons provide students with an alternative lesson format that increases their time-on-task, when combined with the usual amounts of physical education and outdoor recess they receive in school? What are the positive and negative outcomes of student experiences with the integration of physical activity into the classroom environment? The study found that overall students ' time-on­ task increased after physical education and physical classroom-based lesson activities . It was also demonstrated that both male and female students spend at least some time playing outside after schools and on weekends, as well as spend sometime participating in sedentary indoor activities such as video games or watching television.
Genetic and environment info in goat milk FTIR spectra

Milk is a complex mixture of several thousand kinds of molecules (Harding, 1995); however, only a few major milk components are included in the current animal breeding programmes. The need for costly and time consuming chemical analysis to determine them limited their current use. Consequently, the variability of a large part of milk composition remains unknown. In a recent study, the genetic variability of cows’ milk components based on mid-infrared spectra (MIR) are presented (Soyeurt et al., 2010). The study indicated that some regions of the MIR spectra are more heritable than others.
Unravel:: a case tool to assist evaluation of high integrity software

iii Executive Summary . v Symbol Glossary . vii
SEA SURFACE TEMPERATURE AND ATMOSPHERIC CIRCULATION FEATURES ASSOCIATED TO THE ARGENTINEAN ANDEAN RIVERS STREAMFLOW VARIABILITY

The objective of this paper focuses on revealing the main characteristics of the conditions of Atmospheric Circulation and Sea Surface Temperature (SST) associated with the fluctuations of flow in the Atuel and the Chubut rivers, whose temporal behaviors represent the temporal variations found in the rivers of the Cuyo and North Patagonia regions. The relationship between streamflows and SST is significant in large areas of the Southern Hemisphere (SH) central Pacific. However, the Atuel variability seems to be highly linked to El niño / Southern Oscillation (ENSO) patterns with strong signal in the tropical-equatorial Pacific and the Indian Ocean, whereas the Chubut seems to be less associated with the ENSO, showing signal restricted to the SH central subtropical Pacific. High streamflows in the Atuel zone are associated with frequent passage of northwest-southeast oriented lows moving over the subtropical Pacific that induce moisture convergence from lower latitudes and its advection toward the Andean region. The lows reaching the central Chilean coast would produce upward air motion with intense snowstorms in the high mountains and downward air motion with relative high pressures leeward the Andes. Hence, over northeastern Argentina and southern Brazil, a later cyclogenesis would be produced and an increase in baroclinicity linked to a frontal zone with consequent moisture convergence from Brazil, upward air motion and high pre-frontal temperatures. In cases of high streamflows in the Chubut zone, the lows from the Pacific would reach the Chilean coast at higher latitudes, crossing over the natural further low Andes with no discontinuity and transporting moisture from subtropical latitudes. The subtropical low systems are linked to a remarkable reduction of the westerlies owing to higher frequency of highs from the southern Pacific. Some researchers associate these highs with equatorial SST anomalies and the decadal ENSO-like variability and they may take part of a wave-train from the Indian Ocean extended over the southern Pacific. The wave-train can be observed with the correlation between the Atuel streamflows and the geopotential height, but not for the Chubut streamflows. Inverse circulation and SST features would be associated to low streamflows in the studied regions. 1 Corresponding author address: Diego C. Araneo Departamento de Cs. de la Atmósfera y los Océanos FCEyN – UBA – Ciudad Universitaria – Pab. II – 2o piso (1428) Ciudad de Buenos Aires – Argentina e-mail: araneo@at.fcen. uba.ar
Proposal and evaluation of an internetworking mechanism using stepwise synchronization for wireless sensor networks

To realize the ambient information society, where information devices embedded in the environment detect, reason, and satisfy demands of people unconsciously, a variety of network, interface, and platform technologies have been intensively developed in recent years. Regarding networking, one of fundamental technologies is to allow independent networks to cooperate with each other. For example, a wireless body network carried by a person should be connected with networks embedded in the environment immediately and smoothly to provide them with personal information necessary for ambient information services and to receive information services from the environment. However, it is not trivial to enable inter-networking among networks operating on different control policies. Especially in case of wireless sensor networks, which consist of small and powerless devices, they in general adopt a duty cycling mechanism to turn off unnecessary modules for energy conservation. Depending on applications, duty cycles are different among wireless sensor networks. Since it is waste of energy for a node in a frequently operating network to wait for a node in an infrequent network to wake up for message transmission, we need a mechanism for different wireless sensor networks to communicate with each other without sacrificing energy invaluable for network operation. In this thesis, we propose an smooth and moderate inter-networking mechanism for wireless sensor networks. With our inter-networking mechanism, nodes located near the border of networks adjust their operational frequencies in accordance with their distance to the border to bridge the gap between intrinsic operational frequencies of those networks, while other nodes keep their intrinsic operational frequency. To accomplish such stepwise control, we adopt a pulse-coupled oscillator model as a fundamental theory of synchronization. In the PCO model, a set of oscillators achieves the synchronization of timers emerges through mutual interaction among oscillators. Our inter-networking mechanism accomplishes the