Miracle-dz/UniFAR-FTUs huggingface dataset:
Design , Simulation and Fabrication of a Wide Bandwidth Envelope Tracking Power Amplifier

─ In this paper an envelope tracking power amplifier is designed and implemented using MRF6S27015N MOTOROLA transistor in LDMOS technology. First, the amplifier is designed using load pull simulation and its parameters are optimized to increase the power added efficiency. Next, envelope detector and envelope amplifier are designed and simulated and finally ET is applied to the amplifier which results in more than 50% of PAE in a wide range of input power with bandwidth of 200 MHz. Envelope detector circuit is fabricated using schotkey diode and envelope amplifier is manufactured using a mosfet, an op amp, and a comparator. Index Terms ─ Envelope amplifier, envelope elimination and restoration, power amplifier.
A MULTI-WAVELENGTH VIEW OF THE CENTRAL KILOPARSEC REGION IN THE LUMINOUS INFRARED GALAXY NGC 1614

The Luminous Infrared Galaxy NGC 1614 hosts a prominent circumnuclear ring of star formation. However, the nature of the dominant emitting mechanism in its central ∼100 pc is still under debate. We present sub-arcsecond angular resolution radio, mid-infrared, Paα, optical, and X-ray observations of NGC 1614, aimed at studying in detail both the circumnuclear ring and the nuclear region. The 8.4 GHz continuum emission traced by the Very Large Array and the Gemini/T-ReCS 8.7 μm emission, as well as the Paα line emission, show remarkable morphological similarities within the star-forming ring, suggesting that the underlying emission mechanisms are tightly related. We used a Hubble Space Telescope/NICMOS Paα map of similar resolution to our radio maps to disentangle the thermal free–free and non-thermal synchrotron radio emission, from which we obtained the intrinsic synchrotron power law for each individual region within the central kiloparsec of NGC 1614. The radio ring surrounds a relatively faint, steep-spectrum source at the very center of the galaxy, suggesting that the central source is not powered by an active galactic nucleus (AGN), but rather by a compact (r ≲ 90 pc) starburst (SB). Chandra X-ray data also show that the central kiloparsec region is dominated by SB activity, without requiring the existence of an AGN. We also used publicly available infrared data to model-fit the spectral energy distribution of both the SB ring and a putative AGN in NGC 1614. In summary, we conclude that there is no need to invoke an AGN to explain the observed bolometric properties of the galaxy.
Branching random walk with selection at critical rate

We consider a branching-selection particle system on the real line. In this model the total size of the population at time $n$ is limited by $\exp\left(a n^{1/3}\right)$. At each step $n$, every individual dies while reproducing independently, making children around their current position according to i.i. d. point processes. Only the $\exp\left(a(n+1)^{1/3}\right)$ rightmost children survive to form the $(n+1)^\mathrm{th}$ generation. This process can be seen as a generalisation of the branching random walk with selection of the $N$ rightmost individuals, introduced by Brunet and Derrida. We obtain the asymptotic behaviour of position of the extremal particles alive at time $n$ by coupling this process with a branching random walk with a killing boundary.
KRDB Research Centre Technical Report : SHACL Constraint Validation over Ontology-enhanced KGs via Rewriting [ Extended Version ]

Constraints have traditionally been used to ensure data quality. Recently, several constraint languages, among which the W3C recommendation SHACL, have been proposed for Knowledge Graphs (KGs), together with validation mechanisms. An important feature of KGs is that they are often enhanced with ontologies that define relevant background knowledge in a formal language such as OWL 2 QL. At the same time, existing systems for constraint validation either ignore these ontologies, or compile ontologies and constraints into rules that should be executed by some rule engine. In the latter case, one has to rely on different systems when validating constrains over KGs and over ontology-enhanced KGs. In this work, we address this problem by defining rewriting techniques that allow to compile an OWL 2 QL ontology and a set of SHACL constraints into another set of SHACL constraints. In particular, we show that in the general case of OWL 2 QL and SHACL the rewriting may not be possible, and establish restrictions to these languages for which rewriting always exists and also establish complexity bounds as well as identify tractable cases. Our rewriting techniques allow to validate constraints over KGs with and without ontologies using the same SHACL validation engines.
Qualitative Measurement of BI Maturity in a SME ICT Organisation by Jelle Keppels

In this study we identify the main benefits and challenges involved with Business Intelligence (BI) and gather the main BI maturity models and frameworks from both practice and research. This is done by conducting a literature study. Afterwards, we have chosen the Business Analytics Capability Framework (BACF) by Cosic et al. [2015] to be used in a case study, this framework is well grounded in theory but needs further refinement and operationalisation. We extend the BACF with operationalisation and transform it into the Business Intelligence Capability Maturity Model (BICMM) that uses qualitative measurement based on interviews. The BICMM is applied in a case study, on a SME ICT organisation from the Netherlands. The case study has two main goals; to test the model in a real world scenario and suggest improvements, and to compare the results of the case study with the found benefits and challenges from the literature study. The results of the study show that the BICMM is very usable for the measurement of BI maturity. Improvements are suggested for future iterations of the model, such as the transformation to a prescriptive model. Because of the low BI maturity level of the organisation in this case study it was not possible to compare the found benefits, the challenges however show consistency with the findings from the literature study. These comparison can be identified in the challenges regarding governance (e.g. limited funding), culture (e.g. limited cooperation between departments), technology (e.g. no data management strategy) and people (e.g. lack of BI knowledge). Overall, this study provides practice and research with a new BI maturity model that has solid theoretical grounding, and confirms many of the found challenges from literature.
Boulders to Bifaces: Initial Reduction of Obsidian at Newberry Crater, Oregon

Experimental and archaeological data are used here to determine aspects of prehistoric lithic technology represented at three sites within the obsidian quarry complex in Newberry Crater. These data indicate that several different sets of technological activities occurred at sites within the crater; however, all involved reduction of obsidian into large-sized bifacial artifacts.
Collective narratives and politics in the contemporary study of work: the new management practices debate

In this article we explore the question of how as sociologists of work we might research those who constitute the substance of our labour process. We approach this question through an examination of the new management practices debate, principally in the labour movement where a distinctive and critical view of NMP developed in the late 1980s. Second, we argue that there is a link between this debate and the wider politics of labour process discussion both within and beyond the labour movement which has witnessed a shift away from an earlier engagement with worker interventions. In response we suggest the need to re-evaluate the nature of academic engagement with labour thus reanimating a closer engagement with labour-in-work and collective worker narratives.
The Economic Rise of China: Its Threats and Opportunities from the Perspective of Southeast Asia

Abstract The purpose of the paper is to examine the economic impact of China on Southeast Asian countries, mainly in terms of trade and investment. The paper attempts to examine whether the rise of China poses a threat to Southeast Asia as a region in the area of international trade, especially competition in third country markets, and asks, can they be friends and allies rather than competitors in international market? Secondly, the paper also questions if the concentration of foreign direct investment (FDI) in China is resulting in a diversion of FDI away from the region. Do FDI in China and Southeast Asia complement one another when it comes to the international division of labour? On the other hand, the increasing role of China as an international trader and global investor provides an opportunity for Southeast Asia countries to integrate with the Chinese economy. The huge domestic market of China also provides vast opportunities for investment, especially through connections with their respective ethnic Chinese businesses in the region. The overall assessment is that the rise of China will benefit Southeast Asian countries, especially in terms of China's role in the Asian production network, destination for investment, its outward investment and more importantly, its huge and growing domestic market. All these turn China into another driver for economic growth in Asia. Keywords: China, FDI flows, Southeast Asia, trade, investment, Asia production networks.
TARTU ÜLIKOOL Arstiteaduskond Biokeemia instituut

Background: Angiotensin-converting enzyme (ACE) inhibitors have been available in clinical practice for treatment of several cardiovascular pathologies, but their allpossible molecular actions remains to be elucidated. As high-grade oxidative stress (OxS) is one of the key factors for several cardiovascular pathologies studies about different preventing influences of drugs on OxS-driven damages are urgently needed. Objective: We studied the effects of captopril at therapeutic concentrations on oxyresistance of non high-density lipoprotein (HDL) fraction (LPF) and iron-caused alteration of deformability of red blood cells (RBC), and measured its antioxidant activity and hydroxyl radical scavenging potency. Methods: The resistance of LPF to oxidation was estimated by permanent monitoring of the formation of diene conjugates. Chromatographic migration of RBC, a marker their deformability, was measured with and without captopril pretreatment. The antioxidant activity of captopril was determined using a standard kit, and the hydroxyl radical scavenging potency of captopril was elucidated using terephthalic acid method. Results: Captopril elongates the lag-phase of LPF (p < 0.05) and avoids an ironcaused alteration of chromatographic migration of RBCs already at therapeutic concentrations (p < 0.05). Captopril has relative high antioxidant activity and exhibit potency for scavenging of hydroxyl radicals.
Epithelial Mesenchymal Transition Network-based Feature Engineering in Lung Adenocarcinoma Prognosis Prediction Using Multiple Omic Data

Epithelial mesenchymal transition (EMT) process has been shown as highly relevant to cancer prognosis. However, although different biological network-based biomarker identification methods have been proposed to predict cancer prognosis, EMT network has not been directly used for this purpose. In this study, we constructed an EMT regulatory network consisting of 87 molecules and tried to select features that are useful for prognosis prediction in Lung Adenocarcinoma (LUAD). To incorporate multiple molecular profiles, we obtained four types of molecular data including mRNA-Seq, copy number alteration (CNA), DNA methylation, and miRNA-Seq data from The Cancer Genome Atlas. The data were mapped to the EMT network in three alternative ways: mRNA-Seq and miRNA-Seq, DNA methylation, and CNA and miRNA-Seq. Each mapping was employed to extract five different sets of features using discretization and network-based biomarker identification methods. Each feature set was then used to predict prognosis with SVM and logistic regression classifiers. We measured the prediction accuracy with AUC and AUPR values using 10 times 10-fold cross validation. For a more comprehensive evaluation, we also measured the prediction accuracies of clinical features, EMT plus clinical features, randomly picked 87 molecules from each data mapping, and using all molecules from each data type. Counter-intuitively, EMT features do not always outperform randomly selected features and the prediction accuracies of the five feature sets are mostly not significantly different. Clinical features are shown to give the highest prediction accuracies. In addition, the prediction accuracies of both EMT features and random features are comparable as using all features (more than 17,000) from each data type.
Múltipla Processing Speed , Depressive Symptoms and Working Memory : A Comparison between Aging Individuals and Multiple Sclerosis Patients

Damage to the hemispheric white matter is observed both in multiple sclerosis (MS) and normal aging, causing neuropsychological deficits in tasks of executive function, working memory (WM), and speed of information processing (SPEED). In this study two main hypotheses were investigated: (a) that SPEED may constitute a determining factor of WM impairment in MS patients and in aging individuals; (b) that self-reported depressive symptoms may aggravate cognitive deficits in MS patients. The study investigated 31 elderly MS patients without depression, 36 depressed ones, 108 demographically comparable controls and 100 community recruited senior participants. Performance of the groups was compared on a self-report measure of depression and on a WM test battery. Results showed that WM performance depends on SPEED, depressive symptoms, age, and schooling – variables which interact in complex ways.
Seminal plasma proteins and metabolites: effects on sperm function and potential as fertility markers

Abstract Molecular components of sperm and in the media surrounding them influence male fertility. In this regard, seminal plasma proteins and metabolites modulate various reproductive events, including sperm motility and capacitation, cell protection, acrosome reaction, fertilization and embryonic development. Empirical associations between seminal proteins and metabolites and fertility indicate that these molecules are potential molecular markers of male reproductive status in cattle and other species.
The role of forests, trees and wild biodiversity for nutrition-sensitive food systems and landscapes

Many contend that in order to overcome the world's nutrition problems, nutrition must become a cross-cutting issue, with concrete commitment and attention from a wide range of disciplines. From this assertion has grown the promotion of nutrition-sensitive approaches to economic growth, development, agriculture and food systems (nutrition-specific interventions target malnutrition directly, whereas nutrition-sensitive interventions target the causes of malnutrition by integrating nutrition into policies and programs in diverse sectors). There have been repeated calls for the international community to prioritize identification ways to leverage agriculture (and agricultural landscapes) to enhance nutrition (and health). Land use change is an often overlooked driver of change in diets, nutrition and food security, especially for rural communities. The synergies between food systems approaches to food security and nutrition and landscape approaches to integrated biodiversity and forest conservation should be explored and built on.
The Effects of Threonine on Performance Parameters, Carcass Traits, Visceral Organ Indices and Serum Biochemical Parameters of Linwu Ducks, Aged 4 to 8 Weeks

This study was conducted to establish dietary threonine (Thr) levels for Linwu ducks, aged 4 to 8 wk. Experimental diets formulated to contain 0.56, 0.61, 0.66, 0.71, 0.76, and 0.81% Thr fed to Linwu ducks. A total of 360 healthy Linwu female ducks with similar body weight (1183.89±3.83 g) were randomly divided into six groups, with five replicates in each group, and 12 ducks in each replicate. Samples were collected at 8 wk for the determination of growth performance, carcass traits, visceral organ indices, and serum biochemical parameters. As a result of this study, Thr level had no significant influence on the final weight, the daily gain, feed/gain ratio, and average daily intake (p>0.05). Similarly, there were no significant effects of dietary Thr on carcass traits and visceral organ indices (p>0.05). The pancreatic index was highest among all the treatments when the dietary Thr level was 0.66%. The different dietary Thr levels had no significant effect (p>0.05) on the concentration of total protein (TP), triglyceride (TG), total cholesterol (TC), glucose (GLU), superoxide dismutase (SOD), malondialdehyde (MDA), glutathione peroxidase (GSH-Px), and glutathione (GSH). However, the serum MDA concentration in the 0.66% treatment was lower (P=0.068) than in the other treatments. In conclusion, Thr at 0.66% concentration may have an antioxidant activity and exert positive effect on Linwu ducks.
Exercise preference and social identity

The purpose of the present investigation was to examine the relationship between exercise preference and social identity. In an effort to explore this relationship, the current study was conducted in two parts and attempted to determine the extent to which individuals with a specific exercise preference are associated with a set of stereotypical personality characteristics. In the first study, subjects consisted of 180 male and female University students who were asked to rate the participants of five different methods of exercise oh 70 personality and identity dimensions, the five methods of exercise were as follows: bodybuilding, jogging, aerobics, swimming, and racquet ball. In the second study, subjects consisted of 90 male and female University students currently enrolled in a physical education class falling under the heading of one of the above listed methods of exercise. Subjects were asked to rate themselves according to the same list of persdnality descriptors as that used above. Results of the first study indicated that stereotypes ar associated with individuals engaging in some forms of exercise but not others. Results of the second study indicated that actual exercise participants assoqiate themselves with differing sets of stereotypical personaiity characteristics. Subject ratings of hypothetical exercise participants differed from the self
Determination of Dark Matter Halo Mass from Dynamics of Satellite Galaxies

We show that the mass of a dark matter halo can be inferred from the dynamical status of its satellite galaxies. Using nine dark matter simulations of halos like the Milky Way (MW), we find that the present-day substructures in each halo follow a characteristic distribution in the phase space of orbital binding energy and angular momentum, and that this distribution is similar from halo to halo, but has an intrinsic dependence on the halo formation history. We construct this distribution directly from the simulations for a specific halo and extend the result to halos of similar formation history but different masses by scaling. The mass of an observed halo can then be estimated by maximizing the likelihood in comparing the measured kinematic parameters of its satellite galaxies with these distributions. We test the validity and accuracy of this method with mock samples taken from the simulations. Using the positions, radial velocities, and proper motions of nine tracers and assuming observational uncertainties comparable to those of MW satellite galaxies, we find that the halo mass can be recovered to within . The accuracy can be improved to within ∼25% if 30 tracers are used. However, the dependence of the phase-space distribution on the halo formation history sets a minimum uncertainty of that cannot be reduced by using more tracers. We believe that this minimum uncertainty also applies to any mass determination for a halo when the phase-space information of other kinematic tracers is used.
Physiological Effects of Music during Exercise Secretion of Hormones Cortisol and Endorphins

This is a randomized experimental design with control group pre test - post test design, which aims to uncover the physiological effects of listening to music during exercise on the secretion of the hormone cortisol and endorphins. The sample is 24 students majoring in Sport Science chosen at random based on the criteria established, and then divided into three groups consisting of sports, without listening to music, sports by listening to slow music (slow music) and sports by listening to loud music (hard music). Data collecting was done by pedaling a bicycle ergo meter exercise for 10 minutes with sub maximal intensity while listening to music. Listening to music during the workout use five multiplayers (MP5) and headsets. Blood sampling for hormone cortisol and endorphins examination performed before and after exercise. The analysis data using ANOVA, with significance level 5%. Results of data analysis revealed that there is no significant difference between the exercise without music, sports by listening to music, whether slow or music on loud music on the secretion of the hormone cortisol and endorphin (p <0.05). Sports without the music tends to have increased secretion of the hormone cortisol and also hormone endorphin, contrary to the exercise by listening to loud music and there is a tendency slow decline in secretion of the hormone cortisol, whereas the hormone endorphin in both groups are still fluctuative. It can be concluded that sub maximal intensity exercise, by listening to music for 10 minutes tends to decrease hormone cortisol and increases endorphins, which can inhibit the stress and make sense of music as well. Therefore it is advisable to inhibit the increase in cortisol during exercise can be done by listening to music, which according to the intensity of exercise.
Auditing Sampling And Quality of Auditors Report in Nigeria

The paper examines the effect of audit sampling in the quality of auditor's report in Nigeria. The essence of providing an audit report is to make an investigation into the truth and fairness of accounts records, vouchers and financial statements examined by an auditor by the expression of an opinion. This opinion can be a qualified or an unqualified one. The paper concludes that audit sampling is a systematic approach applied by auditors is the process of fashioning out ways to provide reliable and accurate opinions based on the volume of accounting records, vouchers and financial statements made available for verification in order to boost the confidence of the users of audit reports. The auditors' expresses qualified or unqualified report at the end of an audit process. The paper recommends that banks should adopt sampling procedure in their audit process so as to provide audit reports that are objective and defensible; and banks should use hire the services of external auditors to investigate into the truth and fairness of accounts records, vouchers and financial statements examined so as to make them express the appropriate opinion.
Pavement scene interpretation and obstacle detection by large margin image labeling

This paper presents a novel discriminative approach for pave-ment scene understanding and obstacle detection in real-world images. It overcomes the heavy constraints in previous systems such as a simple background, a specic obstacle, etc. The approach we exploited extends the bundle method to incorporate pairwise correlations among neighboring pixels, and adopts graph-cuts as the inference engine to attain the approximation efficiently. A set of robust features on both local and multi-scale level is also introduced that captures the general statistical properties of pavements and obstacles. The proposed approach is validated on real-world image database, and outperforms the current state-of-the-art visioned-based methods