Miracle-dz/UniFAR-FTUs huggingface dataset:
Analysis of pre-computed partition top method for range top-k queries in OLAP data cubes

In decision support systems, having knowledge on the top k values is more informative and crucial than the maximum value. Unfortunately, the naive method involves high computational cost and the existing methods for range-max query are inefficient if applied directly. In this paper, we propose a Pre-computed Partition Top method (PPT) to partition the data cube and pre-store a number of top values for improving query performance. The main focus of this study is to find the optimum values for two parameters, i.e., the partition factor (b) and the number of pre-stored values (r), through analytical approach. A cost function based on Poisson distribution is used for the analysis. The analytical results obtained are verified against simulation results. It is shown that the PPT method outperforms other alternative methods significantly when proper b and r are used.
Positive solutions of singular multi-point boundary value problem for discrete system with a parameter

This paper is concerned with the existence of one or more positive solutions for a second order discrete system yi(k − 1) + λai(k)fi(y1(k), y2(k), · · · , yn(k)) + λei(k) = 0, k ∈ N1,T , i = 1, 2, · · · , n, yi(0) = 0, yi(T + 1) = α m ∑ l=1 y(l), i = 1, 2, · · · , n. By using the Krasnoselskii’s fixed point theorem in cone, sufficient conditions are obtained for the existence for the above system. AMS subject classification: 34B16, 39A10.
Challenges for information technology supporting educational assessment

This article examines the scope for IT-enabled assessments to serve simultaneously both learners and the enterprise of education. The article proposes ways of combining frameworks that come from two different perspectives: 1) a conceptual approach to assessment design for computerized assessment based on evidence-centred design (ECD) and 2) a framework for formative assessment based on empirical research in classrooms. The article argues that combining the ECD and formative assessment frameworks and building on the opportunities provided by computerized assessments as well as harnessing teachers' and students' experience and developing their validation processes could enable assessments to address simultaneously assessment FOR learning and assessment OF learning. Strategies would include harnessing the benefits of embedded continuous unobtrusive measuring of performance while learners are engaged in interesting computerized tasks designed to support their learning. Learners need to be involved in discussing and negotiating their learning so we conceptualize these embedded unobtrusive processes as ‘quiet assessment’, whose volume can be turned up by learners whenever they wish, to give them access to meaningful representations of evidence and arguments about their achievements. These strategies could enable a wider range of measures to contribute to judgements of students' achievements, thus supporting their learning in 21st-century contexts.
The Seattle Pediatric Palliative Care Project: effects on family satisfaction and health-related quality of life.

PURPOSE This paper presents the components of a pediatric palliative care demonstration program implemented in Seattle during the period 1999-2001. It reports findings from the evaluation of quality of life and family satisfaction among enrolled participants. The program was designed to enhance patient-provider communication using the Decision-making Tool (DMT) and experimented with co-management by clinicians and insurers to support decision making in advanced serious pediatric illness. DESIGN The project design consisted of ethical decision-making, provider education, and flexible administration of health benefits through co-case management between insurers and care providers. The evaluation study design is a non-experimental pretest, posttest design comparison of pediatric quality of life and family satisfaction at program entry with repeated measures at 3 months post-program entry. Quality of life was measured with parent proxy reports of health-related quality of life using the PedsQL() Version 4.0, and family satisfaction was measured with a 31-item self-administered questionnaire designed by project staff. RESULTS Forty-one patients ranging in age from infancy to 22 years old were enrolled in the program over a 2-year period. Parents consented to participate in the evaluation study. Thirty one specific diagnoses were represented in the patient population; 34% were some form of cancer. Improvements in health-related quality of life over baseline were observed for 21 matched pairs available for analysis in each domain of health-related quality of life; positive changes in reports of emotional well-being were statistically significant. Improvements over baseline in 14 of 31 family satisfaction items were statistically significant. CONCLUSIONS Pediatric palliative care services that focus on effective communication, decision support, and co-case management with insurers can improve aspects of quality of life and family satisfaction.
Spatial Correlation Property of a 2x2 MIMO System for Different 3GPP Cases

— The presented research paper aims to study and analyze the spatially correlated fading channel, Its basic concepts, brief mathematical modelling and simulation of correlation function of a MIMO System. The review work in [1] presents the effect of antenna parameters on the correlation property of a MIMO System and hence the system capacity. In this paper we will specifically analyze the correlation property of the MIMO System under Rayleigh fading and will compare and interpret the simulated results. The simulation results of MATLAB program [2], have been used to analyze the correlation property.
Hemolytic anemia and G-6-PD deficiency.

To the Editor:— I noted with considerable interest your editorial comment, "Hemolytic Anemia Complicating Viral Hepatitis and G-6-PD Deficiency" ( 208 :2468, 1969), and particularly your reference to two reports of acute renal shut-down in such patients. I wonder whether your warning of the dangers of renal complications in patients with this enzyme defect should not be extended to those with virus disorders other than hepatitis. I should like to report briefly a patient who, because of massive intravascular hemolysis, was considered to be in great danger of intravascular coagulation, with possible kidney damage, and who received heparin without waiting for evidences of coagulation. Report of a Case:— A 17-month-old boy of Greek-American extraction woke one morning appearing pale and listless, and with his wet diapers stained deep red. The patient had had a small-pox vaccination four days before, and had had an upper-respiratory tract infection for the prior two days.
Price Heterogeneity and Consumption Inequality

Using the Nielsen Consumer Panel, we document the presence of significant price heterogeneity in the United States. Poor households pay lower prices for the same products, mostly because they shop more at discount stores. However, we also find that price heterogeneity has a very small impact on the measurement of consumption inequality. Adjusting nominal household expenditures by imposing that all products have the same price does not appreciably reduce consumption inequality in the United States. Finally, we decompose our inequality measure into two factors, measuring differences in the composition and size of consumption baskets. Variations in composition and quantity are both very important in explaining consumption inequality, and the two factors appear to be highly correlated.
ON‐OFF amacrine cells in cat retina

We studied the morphology, photic responses, and synaptic connections of ON‐OFF amacrine cells in the cat retina by penetrating them with intracellular electrodes, staining them with horseradish peroxidase, and examining them with the electron microscope. In a sample of seven cells, we found two different morphological types: the A19, which ramifies narrowly in stratum 2 (sublamina a) of the inner plexiform layer, and the A22, which ramifies mostly in stratum 4 (sublamina b) but extends some dendrites to sublamina a. Both of these cell types have axon‐like processes that extend >800 μm from the conventional dendritic arbor.
An efficient approach to smile detection

Smile detection in real-life face images is an interesting problem with many potential applications. This paper presents an efficient approach to smile detection for face images captured in real-world unconstrained scenarios. In our approach, the pixel intensities in the gray-scale face image are compared, and the intensity differences are used as features. We adopt Adaboost to choose and combine intensity differences (based weak classifiers) to form a strong classifier for smile detection. With the simple features, the detection could be very fast. Our approach achieves 85% accuracy in smile detection by examining 20 pairs of pixel difference and 88% accuracy with 100 pairs of pixel comparison. We match the accuracy of Gabor features based SVM by examining as few as 350 pairs of pixel difference.
Une Approche Générique pour la Reconfiguration Dynamique des Applications à base de Composants Logiciels. (Generic Approach for the Dynamic Reconfiguration of Component-based Software)

Le deploiement est une phase qui prend de plus en plus d'importance dans le cycle de vie du logiciel. Il prend le relais apres la phase de developpement et couvre les etapes restantes du cycle de vie : de l'installation jusqu'a la desinstallation du logiciel en assurant sa maintenance corrective et evolutive . Cette maintenance est necessaire pour prendre en compte de nouvelles conditions, non envisagees et difficiles a predire dans la phase de developpement. Depuis plusieurs annees, le developpement du logiciel s'oriente vers un nouveau paradigme permettant de simplifier la maintenance. Ce paradigme a pour objectif la construction d'applications en integrant des briques logicielles bien definies et "autonomes", appelees composants. La notion classique de developpement d'applications en ecrivant du code a ete remplacee par l'assemblage de composants prefabriques. En general, pour introduire les modifications necessaires, l'application doit etre arretee, modifiee, recompilee puis demarree a nouveau. Cependant, ce processus classique de maintenance ne peut pas etre applique a certaines categories d'applications, pour lesquelles l'interruption complete de service ne peut pas etre toleree. Ces applications, qualifiees de "non-stop", doivent etre adaptees d'une maniere dynamique avec le minimum de perturbation. Dans cette these, nous proposons une approche reflexive permettant de supporter la reconfiguration dynamique des applications a base de composants. Cette approche est mise en œuvre sous forme du systeme DYVA. Le role de ce systeme est de prendre en charge la responsabilite de reconfiguration, et de permettre aux developpeurs de se concentrer sur la logique applicative. Notre objectif majeur est de proposer une solution de reconfiguration generale, basee sur des abstractions et separee des applications a reconfigurer. Ceci permet de developper des applications propres, qui focalisent sur la logique metier. La separation favorise aussi l'evolution et facilite la maintenance, aussi bien des applications que du systeme de reconfiguration. Pour assurer l'ouverture et la reutilisabilite de notre systeme, nous l'avons base sur un modele de composants abstrait. Ce modele incarne l'image de l'application a reconfigurer et permet de traiter d'une maniere homogene, des applications issues de modeles de composants differents. Notre approche favorise aussi l'auto-reconfiguration qui reflete la capacite du systeme de reconfiguration a prendre des decisions de reconfiguration coherentes, et a materialiser ces decisions sans l'intervention d'un acteur humain.
A software model for impact analysis: a validation experiment

Impact analysis is the process of identifying software work products that may be affected by proposed changes. This requires a software representation model that can formalize the knowledge about the various dependencies between work products. This study was carried out with the aim of objectively assessing whether the effectiveness of an impact analysis approach depends on the software dependency model employed. ANALYST, a tool for impact analysis, was used to implement different impact analysis approaches. The results show that the nature of the components and the traceability relationships employed for impact analysis influence the effectiveness of the approach, but different traceability models affect the various aspects of effectiveness differently. Moreover, this influence is independent of the software development approach, but is sensitive to software quality decay.
New approach to optical diffraction tomography yielding a vector equation of diffraction tomography and a novel tomographic microscope

We first obtain a frequency‐space equation of diffraction tomography for the electric field vector, within the first‐order Born approximation, using a simplified formalism resulting from using three‐dimensional spatial frequencies and replacing outgoing waves by linear combinations of homogeneous plane waves. A coherent optical diffraction tomographic microscope is then described, in which a sample is successively illuminated by a series of plane waves having different directions, each scattered wave is recorded by phase‐shifting interferometry, and the object is then reconstructed from these recorded waves. The measurement process in this device is analysed taking into account the illuminating wave, the wave scattered by the sample, the reference wave, and the phase relations between these waves. This analysis yields appropriate equations that take into account the characteristics of the reference wave and compensate random phase shifts. It makes it possible to obtain a high‐resolution three‐dimensional frequency representation in full conformity with theory. The experimentally obtained representations show index and absorptivity with a resolution limit of about a quarter of a wavelength, and have a depth of field of about 40 µm.
Comparison of block size distribution in rockfalls

Rock masses detached as rockfalls usually disintegrate upon impact on the ground surface. The knowledge of the Rockfall Block Size Distribution (RBSD) generated by the propagation of the rockfall mass is required for th e analysis of the trajectories o f the blocks, the run - out distances, the impac t energies, the quantitative assessment of the rockfall hazard and for the understanding of the fra g- mentation process . We have measured the volume of the blocks detached in 5 rockfall cases, obtaining the corresponding RBSD. The total volume involved in th ese rockfall events ranges from 2.6 m 3 to 10000 m 3 . The obtained RBS D can be well fitted by power laws with exp o- nents ranging from 0.51 to 1.27. The results suggest that t hese exponents may be related to the height of fall ( potential energy ) and to the pro portion of new fractures generated in the rock mass , among other factors.
POSITIVE FALSE DISCOVERY PROPORTIONS: INTRINSIC BOUNDS AND ADAPTIVE CONTROL

A useful paradigm for multiple testing is to control error rates derived from the false discovery proportion (FDP). The false discovery rate (FDR) is the expectation of the FDP, which is defined to be zero if no rejection is made. How- ever, since follow-up studies are based on hypotheses that are actually rejected, it is important to control the positive FDR (pFDR) or the positive false discovery excessive probability (pFDEP), i.e., the conditional expectation of the FDP or the conditional probability of the FDP exceeding a specified level, given that at least one rejection is made. We show that, unlike FDR, these two positive error rates may not be controllable at a desired level. Given a multiple testing problem, there can exist positive intrinsic lower bounds, such that no procedures can attain a pFDR or pFDEP level below the corresponding bound. To reduce misinterpretations of testing results, we propose several procedures that are adaptive, i.e., they achieve pFDR or pFDEP control when the target control level is attainable, and make no rejections otherwise. The adaptive control is established under a sparsity condition where the fraction of false nulls is increasingly close to zero as well as under the con- dition where the fraction of false nulls is a positive constant. We demonstrate that the power of the proposed procedures is comparable to the Benjamini-Hochberg FDR controlling procedure.
Preliminary criteria for the classification of systemic sclerosis (scleroderma).

A multicenter, ongoing study of early-diagnosed cases of systemic sclerosis and comparison patients with systemic lupus erythematosus, polymyositis/dermatomyositis, and Raynaud's phenomenon was conducted in order to develop classification criteria for systemic sclerosis. Preliminary criteria are proposed, namely, the finding of either the sole major criterion, i.e.,1) sclerodactyly, 2) digital pitting scars of fingertips or loss of substance of the distal finger pad, and 3) bilateral basilar pulmonary fibrosis. When applied to the case and comparison patients included in this study, these proposed criteria had a 97% sensitivity for definite systemic sclerosis and 98% specificity.
Cell Clustering Using Shape and Cell Context Descriptor

Given a set of boundary points from a 2-D image, the shape context captures the distribution of points relative to each point on that shape. We have applied the shape context descriptor to cancer cell images. Using the shape context, we clustered a list of cancer cell images into groups having likewise similar shapes. To do this clustering, we used the K-means algorithm. From there, we implemented our cell context descriptor by gathering information about the different intensity values. In doing so, we divided the cell into polar rectangles, and in each rectangle, we measured the intensity by counting the number of times the cell concentration hits a certain value. Afterwards, each partition is a histogram which sums up all the different values. This applies concepts from mathematics, computer science, and biology in helping
Effect of alcohols and their interaction with ethylene on the ripening of epidermal pericarp discs of tomato fruit.

Ethanol concentrations that were induced in pericarp discs of mature-green tomato fruit (Lycopersicon esculentum Mill, cv Castlemart) either by anaerobic metabolism or by exposure to ethanol vapor inhibited ripening without increasing the rate of ion leakage. Inhibition of ripening (i.e. lycopene synthesis) of excised tomato pericarp tissue by ethanol vapor was reversed by increasing concentrations of the plant hormone ethylene. A Lineweaver-Burk plot indicated noncompetitive interaction between ethanol and ethylene. Methanol and n-propanol also inhibited lycopene synthesis without significantly increasing ion leakage. The similar inhibitory effects of methanol, ethanol, and n-propanol at concentrations which did not stimulate ion leakage, and the relationship between activity and lipophilia of the alcohols suggest that their mode of action was through disruption of membranes associated with ethylene action.
Time‐resolved quantitative proteome profiling of host–pathogen interactions: The response of Staphylococcus aureus RN1HG to internalisation by human airway epithelial cells

Staphylococcus aureus is a versatile Gram‐positive pathogen that gains increasing importance due to the rapid spreading of resistances. Functional genomics technologies can provide new insights into the adaptational network of this bacterium and its response to environmental challenges. While functional genomics technologies, including proteomics, have been extensively used to study these phenomena in shake flask cultures, studies of bacteria from in vivo settings lack behind. Particularly for proteomics studies, the major bottleneck is the lack of sufficient proteomic coverage for low numbers of cells. In this study, we introduce a workflow that combines a pulse‐chase stable isotope labelling by amino acids in cell culture approach with high capacity cell sorting, on‐membrane digestion, and high‐sensitivity MS to detect and quantitatively monitor several hundred S. aureus proteins from a few million internalised bacteria. This workflow has been used in a proof‐of‐principle experiment to reveal changes in levels of proteins with a function in protection against oxidative damage and adaptation of cell wall synthesis in strain RN1HG upon internalisation by S9 human bronchial epithelial cells.
Stability analysis of some classes of nonlinear switched systems with time delay

ABSTRACT Stability of certain classes of nonlinear time-delay switched systems is studied. For the corresponding families of subsystems, conditions of the existence of common Lyapunov–Razumikhin functions are found. The fulfilment of these conditions provides the asymptotic stability of the zero solutions of the considered hybrid systems for any switching law and for any nonnegative delay. Some examples are presented to demonstrate the effectiveness of the obtained results.
Adaptive Q-Sort Matrix Generation : A Simplified Approach

This paper aims to use the previous work related to the DELPHI method, and, in particular, the Q-Sort method for information retrieval of a panel of experts, to provide a new and simple algorithm to generate Q-Sort matrices that adjust to the size of a given survey to have more questions whose weight is null for the outcome of the round, giving experts the need to prioritise some questions above others in order to reach a consensus in a more direct way.
Novel Variants of AbaR Resistance Islands with a Common Backbone in Acinetobacter baumannii Isolates of European Clone II

ABSTRACT In this study, the genetic organization of three novel genomic antibiotic resistance islands (AbaRs) in Acinetobacter baumannii isolates belonging to group of European clone II (EC II) comM integrated sequences of 18-, 21-, and 23-kb resistance islands were determined. These resistance islands carry the backbone of AbaR-type transposon structures, which are composed of the transposition module coding for potential transposition proteins and other genes coding for the intact universal stress protein (uspA), sulfate permease (sul), and proteins of unknown function. The antibiotic resistance genes strA, strB, tetB, and tetR and insertion sequence CR2 element were found to be inserted into the AbaR transposons. GenBank homology searches indicated that they are closely related to the AbaR sequences found integrated in comM in strains of EC II (A. baumannii strains 1656-2 and TCDC-AB0715) and AbaR4 integrated in another location of A. baumannii AB0057 (EC I). All of the AbaRs showed structural similarity to the previously described AbaR4 island and share a 12,008-bp backbone. AbaRs contain Tn1213, Tn2006, and the multiple fragments which could be derived from transposons Tn3, Tn10, Tn21, Tn1000, Tn5393, and Tn6020, the insertion sequences IS26, ISAba1, ISAba14, and ISCR2, and the class 1 integron. Moreover, chromosomal DNA was inserted into distinct regions of the AbaR backbone. Sequence analysis suggested that the AbaR-type transposons have evolved through insertions, deletions, and homologous recombination. AbaR islands, sharing the core structure similar to AbaR4, appeared to be distributed in isolates of EC I and EC II via integration into distinct genomic sites, i.e., pho and comM, respectively.
"Tumor vascularity" in left atrial thrombus demonstrated by selective coronary arteriography.

Coronary arteriography was performed during preoperative investigation of mitral valve disease in a 62-year-old woman. "Vascular puddles" arising from the left coronary artery were seen within a large filling defect in the left atrium, raising the suspicion of myxoma. At surgery, the filling defect proved to be partially organized thrombus. "Tumor vascularity" can be a feature of left atrial thrombus as well as myxoma.