Miracle-dz/UniFAR-FTUs huggingface dataset:
Broad-band 180/spl deg/ phase shifters using integrated submillimeter-wave Schottky diodes

A proof-of-concept broad-band 180/spl deg/ phase shifter operating at 220 GHz and based on planar integrated Schottky diodes is presented. The phase shifter is a monolithic implementation incorporating impedance transformers designed to yield broad-band operation and compensate for amplitude imbalance between bias states of the diodes. The circuit described in this paper has yielded a phase shift of 180/spl deg//spl plusmn/15/spl deg/ over a 55-GHz band with average insertion loss of 5.5 dB. Moreover, the phase shifter is demonstrated and tested as a sideband generator where it has exhibited an average carrier-to-single sideband conversion loss of 10 dB. The circuit architecture is scalable to submillimeter frequencies where phase shifters are often employed for sideband generation and parametric upconversion.
“You Just can’t Trust them”: Exploring the Memorable Messages Costa Rican Natives Recall about Race

Abstract This study uses memorable messages as a framework for understanding how Costa Rican youths are socialized about race. Through semi-structured interviews, twenty-three participants identified a total of 107 memorable messages, of which three themes emerged: (a) denial of racism, (b) preparation for bias, and (c) promotion of mistrust. Findings reveal that participants use memorable messages to make sense of racial hierarchies in Costa Rica while also highlighting patterns of racial socialization that are consistent across global contexts. In addition to examining the individual-structure dialectic, this research addresses post-racial and color-blind narratives that permeate discourses in Latin American nations.
CGMY and Meixner Subordinators are Absolutely Continuous with respect to One Sided Stable Subordinators.

We describe the CGMY and Meixner processes as time changed Brownian motions. The CGMY uses a time change absolutely continuous with respect to the one-sided stable $(Y/2)$ subordinator while the Meixner time change is absolutely continuous with respect to the one sided stable $(1/2)$ subordinator$. $ The required time changes may be generated by simulating the requisite one-sided stable subordinator and throwing away some of the jumps as described in Rosinski (2001).
Semantic Intrusion Detection System using pattern matching and state transition analysis

Emerging technologies have metamorphosed the nature of surveillance and monitoring application, but the sensory data collected using various gadgets still remain changeable and poorly synchronized. Recently data mining and state transition analysis are becoming important components in identifying intrusions. This paper proposes a semantic based intrusion detection scheme where state transition analysis, pattern matching and data mining techniques are integrated to maximize the detection accuracy. Patterns and rules are formulated based on the events detected by WSN. The sink receives information about the several events happening in the coverage area and correlates the streaming data (events) in spatial domain (several sensors) and time domain. The semantic rules are developed using ANTLR tool. The proposed scheme has been validated using a surveillance system for detecting an intruder. Implementations prove that the proposed hybrid intrusion detection scheme can accurately detect an intruder with the help of a wired network and an appropriate database.
Classification of microcalcifications using a multichannel filtering approach

Presents a method for classification of Mammographic Microcalcifications using Quadrature Mirror Filter (QMF) bank subband decomposition as a tool for extracting textural features. The QMF bank splits the input image into four subbands: low-low band, low-high band, high-low band and high-high band, and textural features based on co-occurrence matrices are computed from the subsampled subbands. The low-low band extracts the information of spatial dependence and the higher frequency bands extract the structural information. The experiments demonstrate that our approach can provide significant discrimination for classification of benign and malignant microcalcifications.
Low-rank matrix recovery from non-linear observations

Algorithms for sparse recovery problems from non-linear measurements have attracted some attention lately. Closely related to the problem of sparse is recovery is the problem of low-rank matrix recovery. There is no work on the topic of low-rank matrix recovery from non-linear measurements. This is the first study that proposes two algorithms for the said problem. The first one is based on nuclear norm minimization while the second one is based on Ky-Fan norm minimization.
Researching construction client and innovation: methodological perspective

It is generally accepted that innovation is the implementation of significantly new processes, products or management approaches in order to increase efficiency. Clients or users of products, processes or services are being identified as potential sources of innovation in research conducted in various sectors (e.g. IT, aviation, and laboratory equipment). At present there is concern regarding the construction clients’ potential to be an innovation promoter within the construction industry. Several researchers have recommended proactive client involvement in construction. Within this background, authors have designed a research methodology with the aim of ‘Improvement of the role of the clients in promoting innovation’. In this context, this paper is an attempt to elaborate the philosophical stances taken and methodologies adopted to fulfill these aims.
Video retrieval using video object-trajectory and edge potential function

A novel video retrieval tool, based on video objects (VOs) and objects trajectories is presented. The algorithm extends the concept of edge potential functions (EPF), already used in shape-based image retrieval, tailored to work on shapes extracted from video object planes (VOP). First, the initial model is detected by using local motion and global motion information. After the moving object is initialized, object tracking is performed to construct its trajectory features. Then, the VOP is extracted and the key-VOP, which is used as visual summarization, is detected. Finally, the special measure, based on EPF, is constructed and used as the main measure to perform video retrieval. Experimental results demonstrate that the proposed algorithm is efficient and fast in indexing a video sequence according to the presence of specific video objects and their trajectories.
Tumor necrosis factor alpha is involved in mouse growth and lymphoid tissue development

Tumor necrosis factor alpha (TNF-alpha), a major mediator of inflammation, also possesses a wide pleiotropism of actions, suggesting its involvement in physiological conditions. TNF-alpha mRNA is present in mouse embryonic tissues and also in fetal thymus and spleen. Repeated injections of a monospecific polyclonal rabbit anti-mouse TNF- alpha antibody in mice, starting either during pregnancy or at birth, led to a severe but transient growth retardation, already present at birth, reaching a 35% decrease in body weight at 3 wk, with complete recovery at 8 wk. The insulin growth factor I (IGF-I) blood levels were decreased to about 50%; growth hormone release and other endocrine functions were unaltered. A marked atrophy of the thymus, spleen, and lymph nodes was also observed, with lymphopenia and impaired development of T and B cell peripheral lymphoid structures. The pathways involving TNF-alpha in IGF-I release and early body growth are probably distinct from those by which TNF-alpha participates in early development of lymphoid tissues, where its low physiological release may contribute to enhance lymphoid cell expansion.
Combining Local Search and Look-Ahead for Scheduling and Constraint Satisfaction Problems

We propose a solution technique for scheduling and constraint satisfaction problems that combines backtracking-free constructive methods and local search techniques. Our technique incrementally constructs the solution, performing a local search on partial solutions each time the construction reaches a dead-end. Local search on the space of partial solutions is guided by a cost function based on three components: the distance to feasibility of the partial solution, a look-ahead factor, and (for optimization problems) a lower bound of the objective function. In order to improve search effectiveness, we make use of an adaptive relaxation of constraints and an interleaving of different lookahead factors. The new technique has been successfully experimented on two real-life problems: university course scheduling and sport tournament scheduling.
How do you solve a problem like Maria? Family complexity and institutional complications in UK social work

ABSTRACT This paper draws on UK data from an international, comparative project involving eight countries. The study examined how social workers’ conceptions and definitions of family impact on the way they engage with complex families, and how social policies that frame social work context impact on the way social workers engage with families. Focus groups were held in which social workers from four service areas (child welfare, addictions, mental health and migration) were asked to discuss a case vignette. Several factors were embedded in the vignette to represent a realistic situation a social worker may come across in their day-to-day work. Social workers clearly identified the complexity of the family’s situation in terms of the range of issues identified and candidate ‘causes’. However, typical first responses were institutional, looking for triggers that would signify certainty about their, or other agencies’ involvement. This resulted in a complicated story, through which the family was disaggregated into individual problem-service categories. This paper argues that understanding these processes and their consequences is critical for exploring the ways in which we might develop alternative, supportive professional responses with families with complex needs. It also demonstrates how organisational systems manifest themselves in everyday reasoning.
Promoting collegial teacher supervision: applying solution-focused strategies in a clinical supervision cycle

Abstract In this study, graduate students enrolled in an instructional supervision course were taught solution-focused strategies and applied them as they engaged in a clinical supervision cycle with a practicing classroom teacher. Qualitative methods, including in-depth interviews and analysis of written clinical supervision reports, yielded five primary themes: view positively, letting the teacher lead, solution-focused techniques used, confident and need for practice. Although additional research in this area is warranted, this work suggests the use of solution-focused conferencing strategies may aid novice instructional supervisors in helping to promote teacher reflection and improve teachers’ classroom decision-making.
Incremental prognostic utility of coronary CT angiography for asymptomatic patients based upon extent and severity of coronary artery calcium: results from the COronary CT Angiography EvaluatioN For Clinical Outcomes InteRnational Multicenter (CONFIRM) study.

AIM Prior evidence observed no predictive utility of coronary CT angiography (CCTA) over the coronary artery calcium score (CACS) and the Framingham risk score (FRS), among asymptomatic individuals. Whether the prognostic value of CCTA differs for asymptomatic patients, when stratified by CACS severity, remains unknown. METHODS AND RESULTS From a 12-centre, 6-country observational registry, 3217 asymptomatic individuals without known coronary artery disease (CAD) underwent CACS and CCTA. Individuals were categorized by CACS as: 0-10, 11-100, 101-400, 401-1000, >1000. For CCTA analysis, the number of obstructive vessels-as defined by the per-patient presence of a ≥50% luminal stenosis-was used to grade the extent and severity of CAD. The incremental prognostic value of CCTA over and above FRS was measured by the likelihood ratio (LR) χ(2), C-statistic, and continuous net reclassification improvement (NRI) for prediction, discrimination, and reclassification of all-cause mortality and non-fatal myocardial infarction. During a median follow-up of 24 months (25th-75th percentile, 17-30 months), there were 58 composite end-points. The incremental value of CCTA over FRS was demonstrated in individuals with CACS >100 (LRχ(2), 25.34; increment in C-statistic, 0.24; NRI, 0.62, all P < 0.001), but not among those with CACS ≤100 (all P > 0.05). For subgroups with CACS >100, the utility of CCTA for predicting the study end-point was evident among individuals whose CACS ranged from 101 to 400; the observed predictive benefit attenuated with increasing CACS. CONCLUSION Coronary CT angiography provides incremental prognostic utility for prediction of mortality and non-fatal myocardial infarction for asymptomatic individuals with moderately high CACS, but not for lower or higher CACS.
A SECURE DATA SHARING IN CLOUD STORAGE WITH INDEPENDENT KEY GENERATION CENTRE AND CERTIFICATE-LESS ENCRYPTION

— A mediated certificateless encryption (mCL-PKE) scheme which solves the certificate revocation problem and the key escrow problem and preserves the data confidentiality in the cloud. Since most of the CL-PKE schemes are based on bilinear pairing and computationally expensive. mCL-PKE scheme does not utilize pairing operation problem. The security mediator supports instantaneous revocation of compromised or malicious users and act as the policy enforcement scheme. This method is highly efficient than the bilinear pairing based scheme. The mCL-PKE scheme with the access control lists is been proposed to overcome the problem of sharing the sensitive information in the cloud storage. The access control list contains the details of the user and this list is generated to the cloud and the data owner for verification purpose. The main problem stated here is the key generation center in the cloud. This will bring vulnerabilities against the secure key generation. A new method is discovered to implement the key generation centre as an independent center which shares key independently. According to the access control, the data is being encrypted by the data owner using the symmetric encryption algorithm and uploads encrypted data items with an intermediate keys to the cloud. The user uses their private key to convert the partially decrypted data to the fully decrypted one. The cloud storage does not perform the decryption operation fully to preserve the data confidentiality as well as the keys information. The extension of the mCL-PKE approach allows the data owner to improvise the encryption operation in an efficient way and also to implement high level independent security in the cloud based system. The result of the mCL-PKE schemes is efficient and practical.
The Astronomical Orientation of Ancient Greek Temples

Despite its appearing to be a simple question to answer, there has been no consensus as to whether or not the alignments of ancient Greek temples reflect astronomical intentions. Here I present the results of a survey of archaic and classical Greek temples in Sicily and compare them with temples in Greece. Using a binomial test I show strong evidence that there is a preference for solar orientations. I then speculate that differences in alignment patterns between Sicily and Greece reflect differing pressures in the expression of ethnic identity.
Erectile Dysfunction Drugs Changed the Protein Expressions and Activities of Drug-Metabolising Enzymes in the Liver of Male Rats

Erectile dysfunction (ED) is a major health problem and is mainly associated with the persistent inability of men to maintain sufficient erection for satisfactory sexual performance. Millions of men are using sildenafil, vardenafil, and/or tadalafil for ED treatment. Cytochrome P450s (CYPs) play a central role in the metabolism of a wide range of xenobiotics as well as endogenous compounds. Susceptibility of individuals to the adverse effects of different drugs is mainly dependent on the expression of CYPs proteins. Therefore, changes in activities of phase I drug-metabolising enzymes [arylhydrocarbon hydroxylase (AHH), dimethylnitrosamine N-demethylase (DMN-dI), 7-ethoxycoumarin-O-deethylase (ECOD), and ethoxyresorufin-O-deethylase ((EROD)] and the protein expression of different CYPs isozymes (CYP1A2, CYP2E1, CYP2B1/2, CYP3A4, CYP2C23, and CYP2C6) were determined after treatment of male rats with either low or high doses of sildenafil (Viagra), tadalafil (Cialis), and/or vardenafil (Levitra) for 3 weeks. The present study showed that low doses of tadalafil and vardenafil increased DMN-dI activity by 32 and 23%, respectively. On the other hand, high doses of tadalafil, vardenafil, and sildenafil decreased such activity by 50, 56, and 52%, respectively. In addition, low doses of tadalafil and vardenafil induced the protein expression of CYP2E1. On the other hand, high doses of either tadalafil or sildenafil were more potent inhibitors to CYP2E1 expression than vardenafil. Moreover, low doses of both vardenafil and sildenafil markedly increased AHH activity by 162 and 247%, respectively, whereas high doses of tadalafil, vardenafil, and sildenafil inhibited such activity by 36, 49, and 57% and inhibited the EROD activity by 39, 49, and 33%, respectively. Low and high doses of tadalafil, vardenafil, and sildenafil inhibited the activity of NADPH-cytochrome c reductase as well as its protein expression. In addition, such drugs inhibited the expression of CYP B1/2 along with its corresponding enzyme marker ECOD activity. It is concluded that changes in the expression and activity of phase I drug-metabolising enzymes could change the normal metabolic pathways and might enhance the deleterious effects of exogenous as well as endogenous compounds.
Investigation of human identification using two-lead Electrocardiogram (ECG) signals

In this paper, we investigate the applicability of Electrocardiogram (ECG) signals for human identification. Wavelet Transform (WT) and Independent Component Analysis (ICA) methods are applied to extract morphological features that appear to offer excellent discrimination among subjects. The proposed method is aimed at the two-lead ECG configuration that is routinely used in long-term continuous monitoring of heart activity. The information from the two ECG leads is fused to achieve improved subject identification. The proposed method was tested on three public ECG databases, namely, MIT-BIH Arrhythmias Database [1], Ml T-BIH Normal Sinus Rhythm Database [2] and Long-Term ST Database [3], in order to evaluate the proposed subject identification method on normal ECG signals as well as ECG signals with arrhythmias. Excellent rank-1 recognition rates (as high as 99.6%) were achieved based on single heartbeats. The proposed method exhibits good identification accuracies not just with the normal ECG signals, but also in the presence of various arrhythmias. This work adds to the growing evidence that ECG signals can be useful for human identification.
An Introduction to Irrationality and Transcendence Methods.

In 1873 C. Hermite [6] proved that the number e is transcendental. In his paper he explains in a very clear way how he found his proof. He starts with an analogy between simultaneous diophantine approximation of real numbers on the one hand and analytic complex functions of one variable on the other. He first solves the analytic problem by constructing explicitly what is now called Padé approximants for the exponential function. In fact there are two types of such approximants, they are now called type I and type II, and what Hermite did in 1873 was to compute Padé approximants of type II. He also found those of type I in 1873 and studied them later in 1893. K. Mahler was the first in the mid’s 1930 to relate the properties of the two types of Padé’s approximants and to use those of type I in order to get a new proof of Hermite’s transcendence Theorem (and also of the generalisation by Lindemann and Weierstraß as well as quantitative refinements). See [2] Chap. 2 § 3. In the analogy with number theory, Padé approximants of type II are related with the simultaneous approximation of real numbers θ1, . , θm by rational numbers pi/q with the same denominator q (one does not require that the fractions are irreducible), which means that we wish to bound from below
Cross-lingual Text Classification Using Topic-Dependent Word Probabilities

Cross-lingual text classification is a major challenge in natural language processing, since often training data is available in only one language (target language), but not available for the language of the document we want to classify (source language). Here, we propose a method that only requires a bilingual dictionary to bridge the language gap. Our proposed probabilistic model allows us to estimate translation probabilities that are conditioned on the whole source document. The assumption of our probabilistic model is that each document can be characterized by a distribution over topics that help to solve the translation ambiguity of single words. Using the derived translation probabilities, we then calculate the expected word frequency of each word type in the target language. Finally, these expected word frequencies can be used to classify the source text with any classifier that was trained using only target language documents. Our experiments confirm the usefulness of our proposed method.
ParC—An Extension of C for Shared Memory Parallel Processing

ParC is an extension of the C programming language with block‐oriented parallel constructs that allow the programmer to express fine‐grain parallelism in a shared‐memory model. It is suitable for the expression of parallel shared‐memory algorithms, and also conducive for the parallelization of sequential C programs. In addition, performance enhancing transformations can be applied within the language, without resorting to low‐level programming. The language includes closed constructs to create parallelism, as well as instructions to cause the termination of parallel activities and to enforce synchronization. The parallel constructs are used to define the scope of shared variables, and also to delimit the sets of activities that are influenced by termination or synchronization instructions. The semantics of parallelism are discussed, especially relating to the discrepancy between the limited number of physical processors and the potentially much larger number of parallel activities in a program.
A Hybrid Approach to Surface Segmentation of Sparse Triangle Meshes

A hybrid approach for the surface segmentation of sparse triangle meshes is presented. The algorithm realizes the segmentation of different regions of triangle meshes through twice segmentations phases: in the first phase, for sparse mesh regions, the edge-based method is used after combination of planes according to the variance of the dihedral angle of normal vector; in the second phase, for other surfaces, the vertex-based method is used to calculate approximate curvature of every triangle mesh according to the evaluated curvature of vertices, and then to realize segmentation through region growing method. Satisfactory results have been achieved for sparse meshes of mechanical CAD models.