Miracle-dz/UniFAR-FTUs huggingface dataset:
Investigation of spatial sharing enhancement in multi-hop 60GHz mmWave WPANs

Spatial sharing (SPSH) is one of the most important merits in 60 GHz millimeter wave (mmWave) wireless personal area networks. Multihop architecture exhibits significant potential for concurrent transmission. In this study, we investigate the SPSH problem for single-hop and multihop architecture under the physical interference model. The minimum length schedule problem of satisfying the required traffic demand with the shortest time is formulated as the optimization problem. Concurrent scheduling and routing are jointly considered in the multihop case. To reduce the complexity of the computation, the column generation algorithm is employed to derive the optimal solution. The simulation results show that multihop architecture can enhance the network throughput by 20% to 30% compared with single-hop architecture.
Clustering and monitoring edge behaviour in enterprise network traffic

This paper takes an unsupervised learning approach for monitoring edge activity within an enterprise computer network. Using NetFlow records, features are gathered across the active connections (edges) in 15-minute time windows. Then, edges are grouped into clusters using the k-means algorithm. This process is repeated over contiguous windows. A series of informative indicators are derived by examining the relationship of edges with the observed cluster structure. This leads to an intuitive method for monitoring network behaviour and a temporal description of edge behaviour at global and local levels.
Capturing Distributed Provenance Metadata from Cloud-Based Scientific Workflows

Workflows are scientific abstractions used in the modeling of scientific experiments. High performance computing environments such as clusters and grids are often required to run the experiments. Cloud computing is starting to be adopted by the scientific community. However, the cloud environment is still incipient in collecting and recording retrospective workflow provenance. This paper presents an approach to capturing distributed provenance metadata from cloud-based scientific workflows. The approach was implemented through an evolution of the Matrioshka architecture that was refactored for cloud environments. Preliminary results show that provenance metadata captured from the virtual components running at the cloud can aid scientists to manage and reproduce their large scale in silico experiments.
Effects of culling on badger abundance: implications for tuberculosis control

Culling is often considered as a tool for controlling wildlife diseases that can also infect people or livestock. Culling European badgers Meles meles can cause both positive and negative effects on the incidence of bovine tuberculosis (TB) in cattle. One factor likely to influence the outcome of different badger-culling strategies for cattle TB is the reduction in badger population density achieved. However, this reduction is difficult to measure because badgers, being nocturnal and fossorial, are difficult to count. Here, we use indices of badger abundance to measure the population impacts of two culling strategies tested in Britain. The densities of badger setts and latrines recorded before culling were correlated with the densities of badgers captured on initial culls, suggesting that both were indices of actual badger abundance. Widespread ‘proactive’ culling was associated with a 73% reduction in the density of badger latrines, a 69% reduction in the density of active burrows and a 73% reduction in the density of road-killed badgers. This population reduction was achieved by a coordinated effort entailing widespread and repeated trapping over several years. However, this strategy caused only modest reductions in cattle TB incidence in culled areas and elevated incidence in neighbouring unculled areas. Localized ‘reactive’ culling caused a 26% reduction in latrine density, a 32% reduction in active burrow density and a 10% reduction in the density of road-killed badgers, but apparently increased the incidence of cattle TB. These results indicate that the relationship between badger population reduction and TB transmission to cattle is strongly non-linear, probably because culling prompts changes in badger behaviour that influence transmission rates. These findings raise serious questions about the capacity of badger culling to contribute to the control of cattle TB in Britain.
Hydroxychloroquine compared with placebo in rheumatoid arthritis. A randomized controlled trial.

OBJECTIVE To assess the efficacy of hydroxychloroquine, 400 mg daily, for rheumatoid arthritis. DESIGN Six-month, double-blind, randomized trial. SETTING Ambulatory referral clinic in a Mexico City, Mexico, teaching hospital. PATIENTS A total of 126 patients with early rheumatoid arthritis were randomly assigned to receive hydroxychloroquine, 400 mg/d, or placebo; 121 patients completed the study. RESULTS Hydroxychloroquine showed a clinically and statistically significant improvement over placebo in joint score (20% greater mean improvement; 10% more patients improved by > 50%); pain (40% greater mean improvement; 19% more patients improved by > 50%); grip strength (22% greater mean improvement; 21% more patients improved by > 50%); patient global assessment (16% more patients stated they had improved); and physician global assessment (12% more patients were judged to have improved). Side effects were mild, and no patients in the hydroxychloroquine group required discontinuation of therapy. Patient compliance with the study medication was high. CONCLUSION Hydroxychloroquine is moderately effective in early rheumatoid arthritis.
Low crosstalk simultaneous 12 ch × 25 Gb/s operation of high-density silicon photonics multichannel receiver

We developed high-density silicon-photonics multichannel receiver and demonstrated 12ch × 25 Gb/s error-free operations at the bit-error-rate of < 1E-12 for the pseudo random binary sequence (PRBS) of 231−1 signals. Carefully designed high power integrity successfully led to very small crosstalk penalty of 1.2 dB under the simultaneous operation at all 12 channels.
REVERSIBLE DATA HIDING THROUGH HISTOGRAM SHIFTING WITH A GENERAL FRAMEWORK

Histogram shifting (HS) is a useful technique of reversible data hiding (RDH). With HS-based RDH, high capacity and low distortion can be achieved efficiently. In this paper, were visit the HS technique and present a general framework to construct HSbased RDH. By the proposed framework, one can get a RDH algorithm by simply designing the so-called shifting and embedding functions. Moreover, by taking specific shifting and embedding functions, we show that several RDH algorithms reported in the literature are special cases of this general construction. In addition, two novel and efficient RDH algorithms are also introduced to further demonstrate the universality and applicability of our framework. It is expected that more efficient RDH algorithms can be devised according to the proposed framework by carefully designing the shifting and embedding functions.
Dependence of Generation–Recombination Noise With Gate Voltage in FD SOI MOSFETs

A model for computing the generation-recombination noise due to traps within the semiconductor film of fully depleted silicon-on-insulator MOSFET transistors is presented. Dependence of the corner frequency of the Lorentzian spectra on the gate voltage is addressed in this paper, which is different to the constant behavior expected for bulk transistors. The shift in the corner frequency makes the characterization process easier. It helps to identify the energy position, capture cross sections, and densities of the traps. This characterization task is carried out considering noise measurements of two different candidate structures for single-transistor dynamic random access memory devices.
Dental Ceramics: Part II - Recent Advances in Dental Ceramics

Over the last decade, it has been observed that there is an increasing interest in the ceramic materials in dentistry. Esthetically these materials are preferred alternatives to the traditional materials in order to meet the patients’ demands for improved esthetics. Dental ceramics are usually composed of nonmetallic, inorganic structures primarily containing compounds of oxygen with one or more metallic or semi-metallic elements. Ceramics are used for making crowns, bridges, artificial denture teeth, and implants. The use of conservative ceramic inlay preparations, veneering porcelains is increasing, along with all-ceramic complete crown preparations. The earlier ceramics are very fragile and can not with stand the high tensile forces. Several modifications have been made in ceramics in order to address this quandary. This article is a review of dental ceramics; divided into two parts such as part I and II. Part I reviews the composition, structure and properties of dental ceramics from the literature available in PUBMED and other sources from the past 50 years. Part II reviews the developments in evolution of all ceramic systems over the last decade and considers the state of the art in several extended materials and material properties.
Residues critical for retroviral integrative recombination in a region that is highly conserved among retroviral/retrotransposon integrases and bacterial insertion sequence transposases

Our comparison of deduced amino acid sequences for retroviral/retrotransposon integrase (IN) proteins of several organisms, including Drosophila melanogaster and Schizosaccharomyces pombe, reveals strong conservation of a constellation of amino acids characterized by two invariant aspartate (D) residues and a glutamate (E) residue, which we refer to as the D,D(35)E region. The same constellation is found in the transposases of a number of bacterial insertion sequences. The conservation of this region suggests that the component residues are involved in DNA recognition, cutting, and joining, since these properties are shared among these proteins of divergent origin. We introduced amino acid substitutions in invariant residues and selected conserved and nonconserved residues throughout the D,D(35)E region of Rous sarcoma virus IN and in human immunodeficiency virus IN and assessed their effect upon the activities of the purified, mutant proteins in vitro. Changes of the invariant and conserved residues typically produce similar impairment of both viral long terminal repeat (LTR) oligonucleotide cleavage referred to as the processing reaction and the subsequent joining of the processed LTR-based oligonucleotides to DNA targets. The severity of the defects depended upon the site and the nature of the amino acid substitution(s). All substitutions of the invariant acidic D and E residues in both Rous sarcoma virus and human immunodeficiency virus IN dramatically reduced LTR oligonucleotide processing and joining to a few percent or less of wild type, suggesting that they are essential components of the active site for both reactions. (ABSTRACT TRUNCATED AT 250 WORDS)
Cloning and Sequencing of the Klebsiella pneumoniae O5wb Gene Cluster and Its Role in Pathogenesis

ABSTRACT One representative recombinant clone encoding Klebsiella pneumoniae O5-antigen lipopolysaccharide (LPS) was found upon screening for serum resistance in a cosmid-based genomic library ofK. pneumoniae KT769 (O5:K57) introduced intoEscherichia coli DH5α. A total of eight open reading frames (wbO5 gene cluster) were necessary to produce K. pneumoniae O5-antigen LPS in E. coliK-12. The enzymatic activities proposed for thewbO5 gene cluster are in agreement with the activities proposed for the biosynthesis of K. pneumoniaeO5-antigen LPS. Using the complete DNA sequence of the K. pneumoniae wbO5 gene cluster, we obtained (by single or double recombination) genetically well-characterized mutants devoid only of this O5-antigen LPS. Finally, using these O5−mutants and the corresponding wild-type strains or complemented mutants with the wbO5 gene cluster (O5+strains), we found that the presence of K. pneumoniaeO5-antigen LPS is essential for some pathogenic features like serum resistance, adhesion to uroepithelial cells, and colonization (experimental infections) of the urinary tract in rats.
Propagation characteristics of a time reversal ultra-wideband system in an enclosed T-structure metal chamber

Time Reversal (TR) is regarded as a potential technology for Ultra-Wideband (UWB) communication systems. The T-structure metal chamber is made up with three rectangular metal cavity through T junction configurations. The multipath effect is very evident in this environment, and T junction can make a large propagation loss when the wireless signal passing by it. Propagation characteristics of a TR-UWB system in an enclosed T-structure metal chamber is studied in this paper. The simulation result shows the wireless signal have a strong spatial focusing in all intended receiver even if the wireless signal have pass by the 90 degrees tunnel bend of T-structure. Moreover, there is a great focusing gain and a stable signal-to-side lobe ratio in most of the location in the metal chamber for the intended receiver.
Head Orientation Estimation using Gait Observation

We propose a novel method to estimate the head orientation of a pedestrian. There have been many meth- ods for head orientation estimation based on facial textures of pedestrians. It is, however, impossible to apply these methods to low-resolution images which are captured by a surveillance camera at a distance. To deal with the prob- lem, we construct a method that is not based on facial textures but on gait features, which are robustly obtained even from low-resolution images. In our method, first, size-normalized silhouette images of pedestrians are generated from captured images. We then obtain the Gait Energy Image (GEI) from the silhouette images as a gait feature. Finally, we generate a discriminant model to classify their head orientation. For this training step, we build a dataset consisting of gait images of over 100 pedestrians and their head orientations. In evaluation experiments using the dataset, we classified their head orientation by the proposed method. We confirmed that gait changes of the whole body were efficient for the estimation in quite low-resolution images which existing methods cannot deal with due to the lack of facial textures.
Effects of Serum Deprivation on Ki‐67‐reactive Antigen

In order to elucidate the relationship between the level of cellular Ki‐67‐reactive antigen and cell proliferation activity, the effects of serum deprivation on the antigen expression and cell proliferation of HeLa cells were investigated using flow cytometry. The antigen was constitutively expressed in almost all cells cultured in normal medium containing 10% calf serum. In the serum deprived cells, the antigen negative fraction increased with culture time, and the level of Ki 67 reactive antigen fell rapidly during the first 24 h. The reduction in the antigen caused by serum deprivation was independent of the cell cycle phase. Both BrdUrd incorporation and the S phase fraction were diminished during the experiment with evidence of cell growth retardation. However, after refeeding with fresh normal medium, the antigen level that had been reduced by serum deprivation recovered to the level of the control cells within 24 h. These results suggest that the level of Ki 67 reactive antigen in cells reflects their growth condition. Acta Pathol Jpn 39: 638‐642, 1989.
Towards Pervasive Cryptographic Access Control Models

Access control lies at the heart of any technical information security and information assurance system. Access control is traditionally enforced by reference monitors, which are assumed to be able to reliably monitor and mediate all traffic from users to objects. An alternative view to enforcement is cryptography, referred to as cryptographic access control (CAC). CAC has gained popularity with the emergence of distributed computing, especially cloud computing and “everything as a service”. CAC is not a formal model, but an enforcement paradigm. In this paper we propose an extension to the current CAC framework and discuss the limits, where it is in general feasible to extend CAC as a paradigm over reference monitors.
A two substrate dual polarised aperture coupled patch

We present a broadband dual polarised aperture coupled patch with high polarisation isolation. Both dual linear and dual circular configurations were investigated. Although dimensions are give for a specific substrate and frequency using the impedances and frequency scaling this design can be applied to other frequency bands. These particular designs were optimised for wide bandwidth but the concept can be applied to build antennas with varied specifications. The key to the designs is the use of two substrates; one on top of the aperture and one below.
Temporal behavior of bidimensional photorefractive bright spatial solitons.

The time behavior of bright spatial solitons in biased photorefractive media is investigated within the framework of a bidimensional band transport model. Biasing the photorefractive media requires an externally applied electric field or the presence of a photovoltaic effect. These two basically different phenomena are shown to be equivalent and additive. The mechanism of space-charge field buildup is analytically expressed, leading to a time-dependent wave propagation equation in generic photorefractive media. The temporal behavior of the soliton solutions to this equation is investigated. It shows the evolution of the soliton beam from the time the external electric field is applied to the final steady-state soliton. On the way, the so-called quasisteady soliton is retrieved, along with its properties. Furthermore, the photovoltaic soliton is described by the wave propagation equation: its behavior is the same as that of the steady-state soliton, the transient states included. Finally, low-power photorefractive bright spatial solitons are generated in a Bi12TiO20 crystal with a He-Ne laser and their temporal behavior is investigated, thus providing an experimental validation of our theoretical considerations.
Evolution of diagnostic criteria for gestational diabetes mellitus

The establishment of universal diagnostic guidelines for gestational diabetes mellitus has been a long time coming. The lack of consensus and uniformity in procedures for diagnosing this disease has been a problem ever since its existence was recognized. The USA, European countries, and Australia have each developed their own guidelines through the years, all based either on the maternal risk of subsequent diabetes, on arbitrary statistics, or on studies conducted on non‐pregnant women. None of these guidelines have been based on risk for perinatal complications. Recently, the Hyperglycemia and Adverse Pregnancy Outcomes study demonstrated that maternal hyperglycemia is associated with perinatal risk in a linear way with no obvious threshold. The International Association of Diabetes and Pregnancy Study Group has translated these results into clinical practice by proposing new diagnostic criteria for gestational diabetes mellitus, based for the first time on perinatal outcome.
C-SCRIP: Collaborative Security Pattern Integration Process

Collaboration is the act of working together, towards a common goal. Collaboration is essential to the success of construction project. In software engineering projects, understanding and supporting collaboration gives the broad impact on product quality. There appears that it is difficult to effectively interact and achieve a common project goals within the bounds of cost, quality and time. The purpose of the paper is to propose a collaborative engineering process, called Collaborative SeCurity patteRn Integration Process C-SCRIP, and a tool that supports the full life-cycle of the development of a secure system from modeling to code.
Production of citramalate by metabolically engineered Escherichia coli

Citramalic acid (citramalate) is a five carbon hydroxy‐dicarboxylic acid and potential precursor for the production of methacrylic acid from renewable resources. We examined citramalate production in Escherichia coli expressing the citramalate synthase gene cimA. Although, knockouts in ldhA coding lactate dehydrogenase and glcB/aceB coding malate synthase did not benefit citramalate accumulation, knockouts in gltA coding citrate synthase, and ackA coding acetate kinase significantly increased citramalate accumulation compared to the control strain. A fed‐batch process in a controlled fermenter using a glucose feed resulted in 46.5 g/L citramalate in 132 h with a yield of 0.63 g/g, over 75% of the theoretical maximum yield from glucose of 0.82 g/g. Biotechnol. Bioeng. 2016;113: 2670–2675. © 2016 Wiley Periodicals, Inc.
Effects of aerobic or resistance exercise and/or diet on glucose tolerance and plasma insulin levels in obese men.

OBJECTIVE This study had two objectives. First, we examined whether the influence of diet combined with either aerobic (DA) (n = 10) or resistance (DR) (n = 10) exercise has effects on insulin and glucose levels that are different in obese men. Second, we tried to determine whether the combination of diet and exercise is associated with improvements in insulin and glucose levels that are greater than those associated with diet alone (DO) (n = 9). RESEARCH DESIGN AND METHODS Insulin and glucose levels were measured after an overnight fast and a 75-g oral glucose challenge (OGTT). Visceral adipose tissue (AT), subcutaneous AT, and skeletal muscle were measured by magnetic resonance imaging (MRI) before and after treatment (16 weeks). RESULTS Reductions in weight (12.4 +/- 3.8 kg) and in visceral (37 +/- 15.1%) and subcutaneous AT (24.3 +/- 8.6%) were not different between treatments (P > 0.05). Skeletal muscle was maintained in the DA and DR groups but was reduced (7.3 +/- 2.8%) in the DO group (P < 0.05). Independent of treatment, fasting glucose and OGTT glucose did not change (P > 0.05). However, fasting insulin, OGTT insulin, and the insulin-to-glucose ratio decreased within all treatments (P < 0.05). Reductions in the OGTT insulin area under the curve were greater (P < 0.05) within the DA (52 +/- 12%) and DR (42 +/- 17%) treatments than in the DO (20 +/- 15%) treatment. Collapsed across group, reductions in visceral AT were related to reductions in fasting and OGTT glucose (P < 0.05), whereas reductions in abdominal subcutaneous AT correlated with reductions in fasting insulin (P < 0.05). CONCLUSIONS Weight loss induced by diet and aerobic or resistance exercise has similar positive effects on lowering fasting and OGTT insulin values that are greater than those with diet alone. Because changes in glucose and insulin were related to reductions in visceral and abdominal subcutaneous AT, we conclude that reduction in abdominal obesity consequent to diet and exercise-induced weight loss is important for attaining improvements in plasma insulin levels, observations that strengthen the concept that abdominal obesity has an important role in mediating insulin resistance.
Neuronal mapped hybrid background segmentation for video object tracking

Detection of moving objects in a video sequence is the fundamental step but a critical task in information extraction for computer vision applications. It provides focus on recognition, classification and analysis problems making the subsequent steps more efficient. Background subtraction, a common approach identifies moving object from video frame that differs from background. We propose an approach based on neuronal mapping for segmentation of targets with hybrid background subtraction and adaptive mean shift filtering. With this method, scenes containing moving backgrounds and the robust illumination changes can be considered effectively. First, the preliminary motion analysis is held to each block of the frame and the block with moving objects are detected. After thresholding and post processing the objects are obtained. Our method can handle scenes with moving objects and suitable for different types of videos. As our method supports inherent parallelism, it can be extended in real time.