Miracle-dz/UniFAR-FTUs huggingface dataset:
New Ionic Conductor as Solid Electrolyte for Solid Oxide Fuel Cell Application

In this work, ceria-doped electrolytes with general formula of Ce0.8Y0. 2xLaxO1.9 (x=0.00; 0.05; 0.10; 0.15; 0.20) were synthesized by combustion method, using glycine as a fuel. The phase identification and morphology of the powders was studied by X-ray diffraction (XRD), surface area measurements (BET) and Raman spectroscopy. The consistency of particle sizes, calculated by the Scherrer formula, and BET measurements suggests that all as-synthesized powders were composed of weakly agglomerated crystallites. After the sintering process (1450 °C/5h) all pellets reach relative densities above 94% of the theoretical density. The contributions of grains and grain boundaries to the total conductivity, were investigated by a.c. impedance spectroscopy, in temperature range of 200-500 °C. The results show that the substitution of the yttrium by lanthanum mainly affects the grain boundary conductivity. Key-words: doped-ceria, SOFC, solid electrolyte, fuel cells 13 ARICLE TH 118 New Ionic Conductor as Solid Electrolyte for Solid Oxide Fuel Cell Application
Non-linearities in light sources

Correction of a light source’s large chromaticity, while maintaining sufficient dynamic aperture and momentum acceptance, requires careful optimization of the sextupole configuration in first and second order of sextupole strength. In this paper we try to explain chromaticity and its correction in a most intuitive way. Accompanied by the stepwise improvement of a test lattice, the scheme is then expanded from plain correction with two sextupole families to installation of ‘harmonic’ sextupole for first and second order optimization. The approach is very visual and pragmatic at the expense of the mathematical formalism which may be found in the references.
Nano-ceramic aspect of preparation and processing of zirconia nanopowders

The hydrothermal method of preparation of zirconia nanopowders was reviewed with respect to the influence of solution pH, mineralizer and TiO2 concentration on the composition and morphology of zirconia crystallite phase. The pH dependence of both the ratio of the needle-shaped monoclinic to oval tetragonal zirconia nano-crystallites and CaO concentration in the zirconia solution has been described. Compressibility improvement and sinterability deterioration of zirconia nanopowders due to the presence of needle-shaped crystallites have been shown. Hydrothermal crystallisation of zirconia nanopowders with a mineralizer-dependent amount of the tetragonal and monoclinic zirconia polymorphs composed of oval and elongated crystallites with various ratios or plate-shaped crystallites has been discussed. The effect of TiO2 on hindered hydrothermal crystallisation of zirconia solid solutions was shown. A potential of the in-situ method for shaping the nano-structure of the TiC/ZrO2 composites has been presented. A slight effect of the carbon precursor and a significant one of the carbon incorporation way on the morphology of TiC in-situ inclusions have been documented. Zirconia ceramics, a truly remarkable group of materials, range from electrically insulating, mechanically weak pure monoclinic zirconia through the fast ion conducting stabilised cubic and tetragonal forms to the TZP and Mg-PSZ ceramics characterised by superb mechanical properties. The latter materials utilize benefits of the transformation toughening associated with the tetragonal (t) to monoclinic (m) phase transformation. Furthermore, zirconia brings a potential for nanotechnology development. The last 35 years of extensive studies of the zirconia systems have delivered a wealth of exciting results [1–3], also those usable in the nanotechnology. Developed methods of fabrication of zirconia micropowders with controlled chemical and phase compositions and morphology can be
Quality Matters: The Expulsion of Professors and the Consequences for PhD Student Outcomes in Nazi Germany

I investigate the effect of faculty quality on PhD student outcomes. To address the endogeneity of faculty quality I use exogenous variation provided by the expulsion of mathematics professors in Nazi Germany. Faculty quality is a very important determinant of short- and long-run PhD student outcomes. A one-standard-deviation increase in faculty quality increases the probability of publishing the dissertation in a top journal by 13 percentage points, the probability of becoming a full professor by 10 percentage points, the probability of having positive lifetime citations by 16 percentage points, and the number of lifetime citations by 6.3.
WBC Segmentation Using MorphologicalOperation and SMMT Operator - A Review

This paper give idea regarding various methods for segmentation of nucleus and cytoplasm of white blood cells (WBC). This basic information is necessary for automatic differential counting, which give idea in diagnosis of different diseases. Self dual multiscale morphological toggle (SMMT) operator is used for segmentation and contour regularization. After preprocessing with SMMT nucleus can be segmented using watershed transform and level-set methods. Cytoplasm region can be identified using granulometric analysis and on morphological transformations
Relationship between bone mineral density and anti-citrullinated protein antibody and rheumatoid factor in patients with rheumatoid arthritis

Objective Rheumatoid arthritis (RA) is one of the causes of osteoporosis, and it leads to systemic bone loss. The anti-citrullinated protein antibody (ACPA) and rheumatoid factor (RF) are associated with local and systemic low bone mineral density and osteoclast-mediated bone resorption independently of inflammation in patients with RA. In this article, we aimed to evaluate the relationship between the ACPA, RF, and systemic bone mineral density in patients with RA. Methods Ninety-three patients (6 male, 87 female) with RA were included in the study. The disease activity score 28-erythrocyte sedimentation rate and titers of RF, ACPA, and bone mineral density of the total hip, femoral neck, and lumbar areas were evaluated. The independent samples t-test, Mann-Whitney U-test, Spearman’s correlation, and multivariable regression analysis were used for the statistical analysis. Results The RF and ACPA were positive in 40.9% and 48.4% of patients with RA, respectively. Disease activity was negatively correlated with the T- and Z-scores. The T- and Z-scores were lower in the seropositive group than in the seronegative group. The ACPA was negatively correlated with the T- and Z-scores of the femoral neck. There was a significant difference for the Z-score of the femoral neck in patients with ACPA and RF-positive patients compared to seronegative patients with RA. Conclusion A low bone mineral density, especially in the femoral neck, is associated with the presence of ACPA and RF. It would be a more appropriate approach to carefully monitor osteoporosis in seropositive RA patients.
Characteristics of limestone soil collected from Gunung Lang, Perak and metagenomic analysis of the soil microbial community

Aims: This project was aimed to study the microbial diversity of the limestone soil and its correlation with the environment. Methodology and results: The study was carried out using samples obtained from Gunung Lang, Ipoh, Perak in August 2013. X-ray diffraction analysis of the rock structure confirmed that the samples were of limestone origin. Besides that, soil analysis revealed that this area was fertile and rich in nutrients. It therefore served as a suitable habitat for microorganismal diversity to flourish. This was proven by the 16S rDNA metagenomic analysis which targeted on 16S rDNA variable region V3-V5 using Illumina MiSeq sequencer. Using this approach, a variety of microorganisms was identified and many yet to be characterized microorganisms were detected from this area. Conclusion, significance and impact of study: This is the first study in Malaysia that aimed to study the microbial diversity of limestone soils through metagenomic approach. The study showed that limestone is rich in microbial diversity and it is a place worth looking for novel microbes and genes of interest in biotechnology.
Transcriptome-based identification of drought responsive genes in the tea plant

Tea (Camellia sinensis L. (O) Kuntze) is one of the most widely consumed beverages worldwide. Tea growing areas in Kenya often experience drought periods which cause accumulated soil water deficit. These adversely affect tea production and hence necessitate a need to develop drought-adapted tea cultivars that can withstand the stress challenge. Development of such cultivars can be facilitated by better understanding of genetic mechanisms underlying tolerance of the tea plant to water deficit. Tea plants respond to water deficit through poorly understood molecular processes. The present study was therefore, designed with the objective of identifying genes putatively conferring tolerance in the tea plant. Drought tolerant (TRFCA SFS150) and susceptible (AHP S15/10) tea cultivars, both 18-month old, were each separately exposed to water stress or control conditions of 18% and 34% soil moisture content, respectively, for three months in a randomized complete block (RCB) design with three replicates. Fresh shoots (n = 5) were randomly selected and separately harvested from each treatment and replicate. Total RNA of the shoots were extracted, their mRNA reverse transcribed and sequenced on Roche 454 high-throughput pyrosequencing platform. Overall, 232,853 reads were generated. The reads were quality-filtered, trimmed and assembled into 460 long transcripts (contigs). Contigs were annotated using BLAST searches against similar proteins in the Arabidopsis proteome and blast2go against non-redundant database to determine gene ontologies. Drought-related genes including heat shock proteins (HSP70), superoxide dismutase (SOD), catalase (cat), peroxidase (PoX), calmoduline-like protein (Cam7) and galactinol synthase (Gols4) were induced in plants exposed to drought. Additionally, the expressions of HSP70 and SOD were higher in the drought tolerant relative to the susceptible cultivar under drought conditions. Loci with known functional links to physiological and biochemical features of drought response appear to mediate tolerance to drought in C. sinensis. The loci present potential molecular markers for drought tolerance that can be explored through functional genomics to better understand molecular mechanisms underlying drought tolerance in C. sinensis.
Computer-based digital measurement system for optical small signals

Boxcar integrator and lock-in amplifier for the detecting of optical small signals are developed based on the virtual instrument technology of LabView. The algorithm of boxcar integrator is simple and easy-achieved. Lock-in amplifier is a powerful technique for the extracting and amplification of small signals. However, the cost of lock-in amplifier hardware is high. We develop digital boxcar integrator and lock-in amplifier in LabView platform. The performances of these two virtual measurement systems for optical small signal are exhibited and analyzed. Introduction In the biomedical detection, optical sensing and fundamental research, the measurement of optical small signals is a difficult work frequently encountered. Optical small signals will be easy contaminated by noise, such as the environment light, the noise of photoelectric conversion, the noise of electric circuit, etc. The measurement system should minimize the effects of noise as far as possible. There are many detecting technologies, for instance correlation detection and narrow-band filter, aiming small signal measurement. Lock-in amplifier is a powerful correlation detection technique for small signal detection with high signal-to-noise ratio [1,2]. However, the cost for the hardware of lock-in amplifier is very high. When the signal is a periodic signal, time domain averaging is an effective method to extract signal from complex signals with noise [3-5]. In this paper, we develop two kinds of virtual instrument based LabView platform, digital boxcar integrator and digital lock-in amplifier, for the detecting of optical small signals. The performances of these two virtual measurement systems for are exhibited and analyzed. Modulation of Optical Signals. In optical signal measurement system, the optical signals from samples usually are very weak. Here, we realize two digital processing systems for the detection of small signals: boxcar integrator and lock-in amplifier. First of all, the optical small signals should be modulated. Figure 1 displays the using of optical chopper to modulate the signal light. The optical signals are converted to square wave by the optical chopper and then are measured by photoelectric detector, like highly sensitive avalanche photo diode (APD). The periodic signals with certain frequency are entered into conventional acquisition system undergoing amplification, filter, D/A conversion, processing and storage. Next, we mainly discuss the data processing of the complex signals of the chopped signal mixed with noise for extracting the weak effective information from sample. International Conference on Intelligent Systems Research and Mechatronics Engineering (ISRME 2015) © 2015. The authors Published by Atlantis Press 145
Empirical Evaluation of Web Based Alias Extraction Techniques

Alias name extraction is the process of extracting surnames for the known name in the web. Alias names are useful in a wide range of processes like information retrieval, opinion mining and terrorist activities detection and so on. Owing to significance of the alias name extraction work, different techniques for web based alias name extraction and validation have been proposed. These methods use a range of techniques like Ranking SVM, Supervised classifiers, Lexical patterns and Latent semantic analysis etc. In this scenario, it is essential to compare these techniques and review its performances. In this work, different alias name extraction and validation techniques are compared. Experiments were conducted on Name alias data set. Experimental Results show that the feature based alias extraction technique that uses ranking SVM outclasses other alias extraction techniques.
Histological study on the effect of adipose tissue-derived mesenchymal stem cells on the testis of chemically induced castration model by calcium chloride in adult albino rats

Background: Male infertility is considered a major cause of couple infertility as it represents 25-50% of infertility cases. In addition, non-obstructive azoospermia (NOA) represents 10% of all infertile men. There is no definite curable treatment for such cases.Aim of the work: To evaluate the therapeutic role of adipose tissue-derived mesenchymal stem cells (ADMSCs) in the treatment of CaCl2 castration model in adult male albino rats.Materials and Methods: Forty five adult male albino rats were divided into 4 groups. Group I (control group), Group II (CaCl2 group), Group III (stem cell treated group), Group IV (recovery group). Testes were dissected out and processed for light and electron microscopic examination. Sperm count and testosterone hormonal assay were done. Morphometric and statistical analysis were performed.Results: Histological examination of the testes of both groups II and IV revealed severe degeneration of seminiferous tubules with sloughing of spermatogenic cells. Inflammatory cells and multinucleated giant cells were obvious in group II while macrophages were detected more clearly in group IV. Collagen fibers deposition was detected in the interstitium and inside seminiferous tubules in group IV. Sperm count and serum testosterone levels were significantly decreased in both groups comparable with that of the control group. Intratesticular injection of ADMSCs in group III resulted in improvement of the histological architecture of testicular tissue which was documented by non significant changes in sperm count and serum testosterone when compared to that of the control group.Conclusions: Adipose tissue-derived mesenchymal stem cells (ADMSCs) could be considered an effective treatment in NOA.
Enhanced Indoor Navigation Using Fusion of IMU and RGB-D Camera

Accurate indoor navigation, especially precise attitude estimation is a challenge topic. Unlike the rate gyroscope in an IMU, the camera based visual-gyro does not suffer from drift errors. In order to overcome the drawbacks of the standalone systems, an INS/visual-gyro integration using direction cosine matrix (DCM) models is presented. Compared to the conventional Euler angle models, the usage of DCM can provide linear system models and avoided singularity problems. Using iterative closest point (ICP) algorithm, the depth measurement from a RGB-D camera can be converted to positioning information and further added to the integrated navigation system. To show the performance of the presented system, one field experiment is carried out with a mobile robot and the numerical results are shown.
Biochemical and haematological changes following an acute toxicity study of a hydro-ethanolic whole plant extract of Synedrella nodiflora (L) Gaertn in male Sprague-Dawley rats

Synedrella nodiflora (L) Gaertn (family Asteraceae), a common weed in Ghana, is traditionally used for the management of epilepsy, hiccup and threatened abortion. To further promote the ethno-pharmacological uses of the plant, an acute toxicity of a hydro-ethanolic whole plant extract was assessed in male Sprague-Dawley rats. The lethal dose (LD 50 ) and effects of a single oral admin-istration of the extract (1600, 3200 and 6400 mg kg -1 ) on haematological and serum biochemical parameters were measured. The extract produced no mortality in the rats treated during a 48-hour examination and after a subsequent 12-day assessment. Thus the LD 50 was indicated as being greater than 6400 mg kg -1 . The extract also did not significantly affect any of the haematological and serum biochemical indices. This result suggests that acute oral administration of the hydro-ethanolic extract of Synedrella nodiflora is virtually non-toxic in male Sprague-Dawley rats under normal laboratory conditions. Keywords: Synedrella nodiflora, acute toxicity, Sprague-Dawley rats, haematology, biochemical analysis
ARE HABITUAL SUPPRESSORS BETTER AT LIMITING THE DEGREE TO WHICH THEIR FEELINGS OF DISGUST ALTER MORAL JUDGMENTS

People who suppress their feelings do so in order to not experience them. However, the literature is unclear as to whether suppression lessens or increases the impact of these suppressed feelings on judgment. To examine this issue, I tested whether and how individual differences in suppression may alter the degree to which feelings of disgust would enhance the severity of people’s moral judgments. If suppression lessens the impact of disgust feeling, then people who are high in suppression should be less likely to make harsh moral judgments when they feel disgusted compare to those low in suppression (hypothesis 1). Second, if suppression results in people being ironically influenced by the feelings that they are trying to suppress, then people who are high in suppression should make harsher judgments when they feel disgusted compared to those who are low in suppression (hypothesis 2). In the experiment, 165 participants completed a measure of habitual suppression. Then, they read and imagined either five disgust sentences (experiment condition) or five neutral sentences (control condition). Finally, they completed a measure of moral judgment. The data indicated that neither disgust nor habitual suppression predicted morality. However, in support of the prediction that suppression would lessen the impact of disgust on moral judgments, disgust and suppression tended to interact. Specifically, when disgusted, people who chronically suppressed were less likely than those who tended not to suppress to harshly evaluate the moral dilemmas. The findings imply that habitual suppression could be effective in not only reducing felt feelings, but also not letting feelings influence people’s judgments.
The notion of Talent: what are the talents we are looking for in science?

In this paper we study the process of scientific talent evaluation in more detail. By analysing the grant allocation process on both the individual and panel level, we will give more insight in the predominant notion of talent in external talent selection. We will compare this to the notion of talent that prevails when researchers identify talent in their own academic work environment. We interviewed 29 panel members involved in grant allocation. For improving the transparency, quality and legitimacy of grant allocation practices, we furthermore aim to uncover the details of the de facto (implicit and explicit) criteria applied in grant allocation.
Kesan penggunaan kulit buah naga sebagai pemeka-pewarna dan molekul pewarna di dalam elektrolit bagi tindak balas fotoelektrokimia

Natural dye sensitizer in photoelectrochemical shows a great potential in improving the efficiency of metal oxide semiconductor especially Titanium dioxide (TiO2) due to its prominent in absorbing visible light and also low cost. In this work, the effect of using pitaya peel as natural dye sensitizes to TiO2 has been studied through characterizations analysis and PEC test. The bare TiO2 thin films were fabricated on Fluorine-doped tin oxide (FTO) glass substrate by doctor blade method meanwhile dyesensitized TiO2 thin films prepared by immersion of TiO2 in the dye extracts. The fabricated thin films were characterized with Scanning Electron Microscopy (SEM), X-ray difractometer (XRD), UV-Vis spectrophotometer and photoelectrochemical analysis. The surface of TiO2 was porous and uniform meanwhile dye particles could not been observed due to very small size. The energy band gap of dye-sensitized TiO2 from the UV-Vis spectrum is 2.1 eV which is smaller than bare TiO2 (3.7 eV). Meanwhile, photoactivities of dye-sensitized TiO2 has the highest compared to bare TiO2 photoelectrodes which is 127μA/cm 2 in 6.25% v/v of pitaya dye in the electrolyte.