Miracle-dz/UniFAR-FTUs huggingface dataset:
Magnetic, Electronic Structure And Interface Study Of Fe/MgO/Fe Multilayer

MgO based magnetic tunnel junctions (MTJs) exhibit high tunneling magnetoresistance (TMR) and have potential applications in magnetic random access memories. This study addresses the role of interface in the Fe/MgO/Fe based MTJs. For present investigation, Fe/MgO/Fe multilayer stack on Si substrates is grown by electron beam evaporation method and has been investigated for structural, magnetic and electronic properties. All the layers in the stack were of polycrystalline in nature as evidenced from X-ray diffraction studies, and the magnetic measurements show the attributes perpendicular magnetic anisotropy. Results from near edge X-ray absorption spectra at Fe L-edges measured by total electron yield mode and X-ray reflectometry indicate the formation of FeOx at the Fe/MgO interface. These are associated with hybridization of Fe (3d)-O(2p) levels at Fe/MgO interface in the stack and thickness of layers in the stacks. Absence of magnetic de-coupling between top and bottom ferromagnetic layers has been attributed to interface roughness and oxidation at Fe/MgO interface. This study highlights the role of interface and oxidation that need to be considered for improving the TMR for devices.
Profiling active and passive nonrespondents to an organizational survey.

In this field study (N = 405) population profiling was introduced to examine general and specific classes of nonresponse (active vs. passive) to a satisfaction survey. The active nonrespondent group (i.e., purposeful nonresponders) was relatively small (approximately 15%). Active nonrespondents, in comparison with respondents, were less satisfied with the entity sponsoring the survey and were less conscientious. Passive nonrespondents (e.g., forgot), who represented the majority of nonrespondents, were attitudinally similar to respondents but differed with regard to personality. Nonresponse bias does not appear to be a substantive concern for satisfaction type variables--the typical core of an organizational survey. If the survey concerns topics strongly related to Conscientiousness and Agreeableness, the respondent sample may not be representative of the population.
MyGeo-Explorer: A semantic search tool for querying geospatial information

We propose a semantic search approach for geospatial information systems to resolve the issue of semantic heterogeneity in metadata catalogues. Using the Malaysian geospatial data infrastructure service portal, MyGDI Explorer, as a comparative case study, a semantic search tool developed in this work is based on the model-view-controller (MVC) approach, which comprises three major components, an ontology component modelled using the Malaysian Geospatial Standard (MS 1759) as a domain, a java-based middleware component using Apache-Jena API and a query-based semantic search engine developed in Java EE. In this paper, we present MyGeo-Explorer, a web application coupled with a semantic search engine for exploring geospatial information and illustrate the use of the tool with some common usage scenarios. We show how ontology-based semantic search provides more relevant search results as compared to traditional keyword search and helps to deal with the problems of semantic heterogeneity inherent in keywords definition.
The disulfide bridge sequences of a serine protease of wide specificity from Streptomyces griseus.

The isolation of a Protease from pronase by carboxymethylcellulose and Bio-Rex 70 column chromatography is described. The esterolytic activity of the protease (termed Streptomyces griseus Protease A) towards N-acetyltyrosine ethyl ester was inhibited by diisopropyl fluorophosphate treatment but not by L-(1-tosylamido-2-phenyl) ethyl chloromethyl ketone treatment.When oxidized insulin A and B chains were used as substrates in proteolytic specificity studies, it was found that the protease had a wide specificity, with cleavages at peptide bonds containing the carboxyl group of amino acids which did not have electrophilic or polar substitutions on their β-carbon atoms.Interesting features of the amino acid analyses were that the protease molecule contained four half-cystines, three histidines, and one methionine, but no lysines.The two peptic disulfide bridge peptides in the molecule were isolated by G-25 Sephadex chromatography, and paper electrophoresis and chromatography. Sequence analysis of these peptid.
The GEO VIEW design A relational data base approach to geographical data handling

Abstract Digital map data are currently available based on a variety of data structures, depending on the uses to which the data are to be put Within the major categories of vector and raster data, as well as other structures, there is a multiplicity of data formats. Further to this, data for digital map coordinates are frequently stored in a different way from attribute data pertaining to points, lines and polygons. Given these problems, this paper investigates the possibility of handling different kinds of data structures, as well as both coordinate and attribute information within a unified conceptual scheme. This scheme is expressed in terms of the design of an integrated geographical information system called GEO VIEW, which can be implemented in a relational data base environment. The structure of the tables in the data base is outlined, together with the methodology for coding different kinds of data structure into a standard form. Examples of queries are provided, using the SQL query language, to .
Overestimation of liver fibrosis staging using transient elastography in patients with chronic hepatitis C and significant liver inflammation

Background Transient elastography (TE) is a non-invasive method that allows liver fibrosis staging on the basis of hepatic stiffness measurements. Little is known about the influence of chronic liver inflammation on the stiffness of hepatic tissue. Methods A total of 112 patients with chronic hepatitis C underwent a liver biopsy and TE. Results Mean values of liver stiffness (in kPa) by inflammation strata were 4.8, 6.4, 9.4 and 12.6 for A0, A1, A2 and A3, respectively, in hepatitis C virus (HCV)-monoinfected individuals (P=0.018). These figures were 8.0, 10.4, 12.9 and 12.6 for A0, A1, A2 and A3, respectively, in HIV– HCV-coinfected patients (P=0.35). In HCV-monoinfected patients with fibrosis staging F3-F4, mean liver stiffness was greater if inflammation was ≥A2 versus A0-A1 (14.6 versus 6.2 kPa; P=0.04). By contrast, no differences in liver stiffness according to inflammation were seen in HCV-monoinfected patients with <F3 or in HIV-HCV-coinfected patients regardless of liver fibrosis staging. Among HCV-monoinfected patients, mean liver stiffness was greater for alanine aminotransferase >100 versus <100 IU/l (10.5 versus 8.5 kPa; P=0.04). Conclusions The extent of liver inflammation might affect the accuracy of TE for staging liver fibrosis, particularly in HCV-monoinfected patients with advanced fibrosis on liver biopsy and/or increased alanine aminotransferase levels.
[A new treatment of keratectasia after LASIK by using collagen with riboflavin/UVA light cross-linking].

BACKGROUND Keratectasia is one of the most severe complications after refractive laser surgery. Usually penetrating keratoplasty is the treatment of choice to achieve an optical rehabilitation in such cases. PATIENTS AND METHODS We report on a female patient who developed keratectasia in both eyes 4 weeks after LASIK. Due to a severe keratectasia 10 months after LASIK, a treatment with riboflavin/UVA cross-linking was performed. RESULTS Due to the induced collagen cross-linking the biomechanical status of the cornea was stabilized and a progression of the keratectasia was prevented. The postoperative refraction and corneal topography have been stable for 18 months. CONCLUSION Collagen cross-linking leads to a stiffening of the anterior parts of the corneal stroma. The increase of biomechanical stability can stop the progression of a keratectasia after LASIK by means of a simple procedure.
On the computation of non‐perturbative effective potentials in the string theory landscape – IIB/F‐theory perspective –

We discuss a number of issues arising when computing non‐perturbative effects systematically across the string theory landscape. In particular, we cast the study of fairly generic physical properties into the language of computability/number theory and show that this amounts to solving systems of diophantine equations. In analogy to the negative solution to Hilbert's 10th problem, we argue that in such systematic studies there may be no algorithm by which one can determine all physical effects. We take large volume type IIB compactifications as an example, with the physical property of interest being the low‐energy non‐perturbative F‐terms of a generic compactification. A similar analysis is expected to hold for other kinds of string vacua, and we discuss in particular the extension of our ideas to F‐theory. While these results imply that it may not be possible to systematically answer certain physical questions about generic type IIB compactifications, we identify particular Calabi‐Yau manifolds in which the diophantine equations become linear, and thus can be systematically solved. As part of the study of the required systematics of F‐terms, we develop technology for computing ℤ2 equivariant line bundle cohomology on toric varieties, which determines the presence of particular instanton zero modes via the Koszul complex. This is of general interest for realistic IIB model building on complete intersections in toric ambient spaces.
Gait analysis for identification by using BPNN with LDA and MDA techniques

In this paper BPNN performance for the gait analysis with using the different modulation techniques i.e LDA and MDA. Gait Analysis is the new technique in the biometric identification, the gait have more advantages over the field of biometric systems like face recognition, finger printing etc. Gait Analysis is a method by which individual can be recognized by the manner of walk. Less unobtrusive gait recognition system over the other biometric traits is the main advantage. i.e. it offers the identification of an individual at a particular distance, without any physical interference or contact with an individual and can be easily apply on the low resolution image frames as well. In this paper, firstly the video of an individual in captured, secondly background subtraction is applied on that so as to remove the unwanted information, thirdly feature extraction is carried out to extract the various parameters by using the Hanavan's model, and finally the recognition is performed by using BPNN+LDA and BPNN+MDA techniques, are used for the training and the testing purposes, and the matching can also be performed on the basis of CBIR. All the processes are performed on the gait database and the input video.
Integrating Health Theories in Health and Fitness Applications for Sustained Behavior Change: Current State of the Art

Two hundred million people in the US are overweight or obese mirroring a worldwide trend that is associated with high morbidity and mortality rates. Health and fitness mobile technology applications have great capacities for supporting dieters’ life-style changes and could profit from and provide input of health behavior theories. Those theories have been demonstrated with massive clinical evidence to be efficient for fostering healthy lifestyle changes and weight loss. This research reviewed the 100 most popular mobile technology applications from iTunes App Store’s Health and Fitness category in respect coverage of health behavior theories’ concepts und chose 14 of those for a complete analysis. Applications provide good support for athletes’ workouts and have great potential to be extended to serve overweight users as well. Missing features could be easily implemented given the current state of technology. These developments look promising for tackling sustained weight loss in many mobile technology users.
Spatial and temporal analysis of hillslope–channel coupling and implications for the longitudinal profile in a dryland basin

The long‐term evolution of channel longitudinal profiles within drainage basins is partly determined by the relative balance of hillslope sediment supply to channels and the evacuation of channel sediment. However, the lack of theoretical understanding of the physical processes of hillslope–channel coupling makes it challenging to determine whether hillslope sediment supply or channel sediment evacuation dominates over different timescales and how this balance affects bed elevation locally along the longitudinal profile. In this paper, we develop a framework for inferring the relative dominance of hillslope sediment supply to the channel versus channel sediment evacuation, over a range of temporal and spatial scales. The framework combines distinct local flow distributions on hillslopes and in the channel with surface grain‐size distributions. We use these to compute local hydraulic stresses at various hillslope‐channel coupling locations within the Walnut Gulch Experimental Watershed (WGEW) in southeast Arizona, USA. These stresses are then assessed as a local net balance of geomorphic work between hillslopes and channel for a range of flow conditions generalizing decadal historical records. Our analysis reveals that, although the magnitude of hydraulic stress in the channel is consistently higher than that on hillslopes, the product of stress magnitude and frequency results in a close balance between hillslope supply and channel evacuation for the most frequent flows. Only at less frequent, high‐magnitude flows do channel hydraulic stresses exceed those on hillslopes, and channel evacuation dominates the net balance. This result suggests that WGEW exists mostly (~50% of the time) in an equilibrium condition of sediment balance between hillslopes and channels, which helps to explain the observed straight longitudinal profile. We illustrate how this balance can be upset by climate changes that differentially affect relative flow regimes on slopes and in channels. Such changes can push the long profile into a convex or concave condition. © 2018 The Authors. Earth Surface Processes and Landforms published by John Wiley & Sons Ltd.
A Novel Broadband 3 dB Branch Waveguide Directional Coupler With Ultra-Low Amplitude Imbalance

A novel broadband 3dB branch waveguide directional coupler with ultra-low amplitude imbalance is proposed in this paper. By introducing 10 circular cutouts inside the main waveguide, the amplitude imbalance in operating band is greatly improved. The results show that the proposed coupler has a working frequency band of 133.2 GHz to 163.3 GHz, a fractional bandwidth of 20.3%, the amplitude imbalance is less than 0.4dB, while the amplitude imbalance is less than 0.13dB in the center frequency, and the phase imbalance is better than ±0.94°. The amplitude imbalance in the center of the operating band is improved by about 70% compared to the traditional 5-branch waveguide coupler.
Predictors of neonatal hypothalamic–pituitary–adrenal axis activity at delivery

Objective Clinical and preclinical studies indicate that maternal stress during pregnancy may exert long‐lasting adverse effects on offspring. This investigation sought to identify factors mediating the relationship between maternal and neonatal hypothalamic–pituitary–adrenal (HPA) axes in pregnant women with past or family psychiatric history.
Autoregulation of Helicobacter pylori Fur revealed by functional analysis of the iron‐binding site

The ferric uptake regulator protein Fur regulates iron‐dependent gene expression in bacteria. In Helicobacter pylori it has been shown to regulate iron‐activated and iron‐repressed genes. In this study, we show that H. pylori Fur protein regulates transcription from its own σ80 promoter Pfur in response to iron. Footprinting analysis shows that Fur binds at three distinct operators at Pfur overlapping and proximal to the promoter elements. Site‐directed mutagenesis of the proposed iron‐binding site of the protein results in derepression of Pfur and the loss of iron regulation. In vivo oligomerization assays reveals that the C‐terminus of Fur is necessary for multimerization of the protein and that the mutations do not affect this activity. Molecular and phenotypic analysis of the mutant proteins provides evidence that the iron‐binding site controls the specific affinity of Fur for the operators at Pfur and hence its repressive ability. In summary, the data presented are consistent with a model in which Fur acts as a rheostat of transcription to autoregulate its own expression in response to iron, which in turn controls expression of iron‐induced and iron‐repressed genes, providing maintenance of homeostasis.
Tonic immobility in spent hens after catching and transport

Tonic immobility tests were used to obtain information about the levels of fear in end-of-lay hens after they had been transported to four commercial processing plants. They stayed in a condition of tonic immobility longer than hens which had only been caught and removed from cages. There was no evidence that they became habituated to transport during journeys of up to five hours, but there were significant differences between the levels of fear expressed by birds transported by the different processors.
Safety of anticoagulant treatment in cancer patients

Introduction: Patients with cancer are at increased risk of (recurrent) venous thromboembolism. They are also at increased risk of bleeding. This makes treatment of venous thromboembolisms (VTE) in cancer patients challenging. Areas covered: In this review, we will focus on the safety of anticoagulant treatment of VTE in cancer patients. We will discuss the absolute and relative bleeding risks associated with the various types of anticoagulants, specifically focusing on low-molecular-weight heparins (LMWH), vitamin K antagonist (VKA) and the new oral anticoagulants (NOACs). Expert opinion: Monotherapy with LMWH is recommended for treatment of acute VTE in cancer patients. The bleeding risk associated with LMWH is comparable to VKAs, but LMWH are more effective in preventing recurrent VTE. More evidence on the efficacy and safety of NOACs in cancer patients is needed.
Deep residual networks for automatic segmentation of laparoscopic videos of the liver

Motivation: For primary and metastatic liver cancer patients undergoing liver resection, a laparoscopic approach can reduce recovery times and morbidity while offering equivalent curative results; however, only about 10% of tumours reside in anatomical locations that are currently accessible for laparoscopic resection. Augmenting laparoscopic video with registered vascular anatomical models from pre-procedure imaging could support using laparoscopy in a wider population. Segmentation of liver tissue on laparoscopic video supports the robust registration of anatomical liver models by filtering out false anatomical correspondences between pre-procedure and intra-procedure images. In this paper, we present a convolutional neural network (CNN) approach to liver segmentation in laparoscopic liver procedure videos. Method: We defined a CNN architecture comprising fully-convolutional deep residual networks with multi-resolution loss functions. The CNN was trained in a leave-one-patient-out cross-validation on 2050 video frames from 6 liver resections and 7 laparoscopic staging procedures, and evaluated using the Dice score. Results: The CNN yielded segmentations with Dice scores ≥0.95 for the majority of images; however, the inter-patient variability in median Dice score was substantial. Four failure modes were identified from low scoring segmentations: minimal visible liver tissue, inter-patient variability in liver appearance, automatic exposure correction, and pathological liver tissue that mimics non-liver tissue appearance. Conclusion: CNNs offer a feasible approach for accurately segmenting liver from other anatomy on laparoscopic video, but additional data or computational advances are necessary to address challenges due to the high inter-patient variability in liver appearance.
Generation of adaptive splitbelt treadmill walking of a biped robot using learning of intralimb and interlimb coordinations

In this paper, we proposed a control system with learning to investigate neuromechanical functions for generating adaptive bipedal locomotion on a splitbelt treadmill. Humans show two types of adaptations, called early adaptation and late adaptation, in splitbelt treadmill walking. In our previous work, we investigated the locomotor behavior of a biped robot driven by nonlinear oscillators with phase resetting and showed that it produced the early adaptation like humans. However, because the locomotion control system did not contain any learning mechanism, it did not show the late adaptation. In this paper, we newly develop learning systems, which modulate the interlimb and intralimb coordination patterns, and incorporate them to our locomotion control system. We investigated the locomotor behavior of a biped robot using computer simulations and robot experiments. The results showed the early and late adaptations during the splitbelt treadmill walking and the time evolution of locomotion parameters was similar to that of humans, which might contribute to understanding of adaptive mechanism in humans and to guiding principle for designing a control system of biped robots.
Occurrence of toxigenic Escherichia coli in raw milk cheese in Brazil

The occurrence of toxigenic Escherichia coli in raw milk cheese was surveyed in Middle Western Brazil. Fifty samples of cheese from different supermarkets were analyzed for E.coli. The isolates were serotyped and screened for the presence of verotoxigenic E. coli (VTEC) and enterotoxigenic E. coli (ETEC) by Polymerase Chain Reaction (PCR). The susceptibility to thirteen antimicrobial agents was evaluated by the disk diffusion method. E.coli were recovered from 48 (96.0%) of the samples. The serogroups identified were O125 (6.0%), O111 (4.0%), O55 (2.0%) and O119 (2.0%). Three (6.0%) and 1(2.0%) of the E.coli isolates were VTEC and ETEC, respectively. Most frequent resistance was observed to the following antimicrobials: cephalothin (60.0%), nalidixic acid (40.0%), doxycyclin (33.0%), tetracycline (31.0%) and ampicillin (29.0%).
Compound structures of new chaotic attractors in a commonly-distributed-coefficient jerk model with arcsine and arc-hyperbolic sine nonlinearity

Two new chaotic attractors in a commonly-distributed-coefficient jerk model are proposed with new coefficients and new nonlinearity. The latter is based on arcsine and arc-hyperbolic sine nonlinearity. In particular, compound structures of both attractors are demonstrated through a half-image isolation using a control parameter C. The positive value of an appropriate C isolates the right half-image attractors whilst the negative value of an appropriate C isolates the left half-image attractor. Both images can then be merged together as a compound structure. Forming mechanism of compound structures has been concluded. Examples of gradual development of the compound structures have also been demonstrated.