Miracle-dz/UniFAR-FTUs huggingface dataset:
Ka-band Antennas Simulation for LTCC Antenna-on-Chip Solution

Different Ka-band antenna designs optimized for LTCC technology were studied. With the help of finite element method spiral, patch and horn antennas were simulated. Calculated VSWR, radiation pattern cross section and axial ratio for described designs are presented. It was shown that the most suitable LTCC design for antenna array in Ka-band is horn antenna. Streszczenie. Analizowano różne anteny dla pasma K I technologii LTCC. Stosując metodę elementów skończonych analizowano trzy różne kształty anteny. Stwierdzono że najlepsze parametry ma antena ftpu horm (róg). (Badania różnych kształtów anteny na pasmo K w technologii LTCC)
Implementing the European Sports Leadership Programme: A vehicle to help development graduate workplace competencies

This research was part of a large intervention study implementing the European Sports Leadership Programme (ESLP). This paper reports the outcomes of the qualitative study that employed focus groups to assess the students’ perceptions of the 15 competencies determined according to the Framework for qualifications of the European Higher Education Area, before and after the ESLP. Focus groups were carried out at each of the five universities. The ESLP involved university students working as a sports leader for 24 months with the aim to engage more students in university sport, whilst they took part in a graduate employability programme. Each university recruited five sports leaders in their second year at university, to deliver 10 new sport and recreational activities targeting the wider inactive or semi-active student population. Findings highlighted that Organization and planning, Oral and written communication, Development of planning and decision making, and Teamworking, followed closely by Emotional control and Adapting to new situations, were the most commonly reported competencies. They affirmed that this programme had helped to develop these competencies. Use of information, communication and technology, Communication in a foreign language, Research and Emotional control were the most common competencies that students stated they needed to improve further. This research found that implementing the ESLP helped to develop students’ perceptions of their workplace and career competencies. The ESLP is therefore, recommended as one approach to helping universities to develop student’s workplace and career competencies.
How Did the Lost Shangri-La Get Lost? The Tragedy of the Groundwater Commons in Lijiang, China

Groundwater is critical to human survival, however, it has constantly been overexploited around the world. Despite hydrological causes and the effects of global climate change, groundwater governance has an essential role to play in causing or preventing such overexploitation. This paper presented a case of groundwater governance in Lijiang, renowned for its natural beauty and exotic cultures, located in northwest Yunnan, China. Since being designated as a UNESCO World Heritage site in the 1990s, Lijiang has experienced dramatic tourism development, which eventually escalated its groundwater crisis. This paper applied the diagnostic approach of social-ecological systems to analyse the institutionalised governance process in the case of Lijiang and substantiated the effectiveness of the Social-Ecological Systems (SES) approach in explaining groundwater management issues. Two significant findings were drawn in the case of Lijiang. First, institutional arrangements may play an essential role in resource management, but their analysis is lacking between macro modelling of planetary boundaries of the Earth and micro surveys of individual and community behaviour. The SES framework offered a useful tool to fill this gap. Second, the designation of Lijiang’s Outstanding Universal Values as a world heritage site ironically damaged its local cultural intimacy, which nurtured generations of collective action for Naxi people, escalating the tragedy of its groundwater commons.
Design and modeling of a hydraulic soft actuator with three degrees of freedom

This paper focuses on the design and modeling of a hydraulic soft actuator which can perform space motion with multiple degrees of freedom (DOF). The cylinder soft actuator made of elastomer has three fiber-reinforced hydraulic chambers distributed symmetrically. By controlling the pressure vector in the chambers, the motion of the soft actuator can be expressed by three independent variables including axial elongation, bending angle, and azimuth angle. This paper firstly presents the actuation principle, structural design, and fabrication method of the soft actuator. Secondly, the relationship between the input pressure and the axial length of the chamber is derived by taking the nonlinear deformation behavior of the elastomer into account, which is seldom considered in the state of the art. Thirdly, the kinematics of the soft actuator is modeled to predict the coordinates of its tip position with the piecewise constant-curvature (PCC) assumption. Finally, an experimental platform is set up and a series of experiments are implemented to identify some parameters which are difficult to be quantified analytically as well as to validate the developed model. The results show that the measured data are in good accordance with the predicted data. In addition, a model-based open-loop control experiment is carried out to realize the path following.
THE EFFECT OF TEACHER-AND PEER-ASSISTED EVALUATIVE MEDIATION ON EFL LEARNERS’ METACOGNITIVE AWARENESS DEVELOPMENT

Rooted in the heart of Vygotsky’s Sociocultural Theory, mediation has recently received considerable attention in the field of TEFL. The existing literature suggests that mediation can play an essential role in language learners’ performance development. In addition, learners need to know about their thinking process which is interpreted as metacognition. This study aimed to investigate the effect of teacher- and peer-assisted evaluative mediation on learners’ metacognitive awareness development. To this end, 40 homogenized intermediate EFL learners were selected using a test of English language proficiency. The participants were then randomly divided into teacher-assisted (n=20) and peer-assisted (n=20) groups. Before the instructional phase, a metacognitive awareness questionnaire was given to the participants. At the instructional phase, the learners in the teacher-assisted group received teacher-assisted mediation. The learners in the peer-assisted group, however, were exposed to mediation provided by their peers. After the instructional phase, the metacognitive awareness questionnaire was given to the participants as the posttest of the study. SPSS was used to analyze the data. The descriptive statistics, the Shapiro-Wilk test of normality, and the Paired Sample T-test for inferential statistics were used to analyze the data. The findings showed that peer-assisted evaluative mediation had positive effects on developing students’ level of metacognitive awareness, whereas teacher-assisted evaluative mediation did not reveal such effects. It could be concluded that peer-assisted evaluative mediation is an effective tool for improving students’ metacognitive awareness.
Coopetition dynamics between giant entrants and incumbents in a new convergent segment: a case in the smartphone industry

ABSTRACT This study investigates the dynamic evolution of coopetition between giant entrants from different industries and incumbent leaders, and the role of coopetition in industry leadership battles in a convergent segment. We analyse the case of coopetition between Apple and Samsung in the smartphone industry, taking both a broad perspective and a more focused approach. Our findings suggest that in convergent situations, innovative leaders from other industries are likely to enter newly convergent segments and coopetition between giant entrants and incumbents plays an important role in the industry leadership battles. Also, from the dynamic perspective, the cooperative relationships between giant entrants and incumbents can change to coopetition over time. Thus, the way to value creation will change across the stages of the coopetition and balance is critical for the continuation of a coopetitive relationship.
Ammonium neodymium(III) bis­[sulfate­(VI)] tetra­hydrate

(NH4)[Nd(SO4)2(H2O)3]·H2O is isotypic with other members of the (NH4)[Ln(SO4)2(H2O)3]·H2O family (Ln = lanthanides). It contains NdO9 polyhedra and SO4 tetra­hedra, which are linked by common edges and vertices, forming a layer-like arrangement parallel to (010). The neodymium cation is nine-coordinated in a distorted monocapped square anti­prismatic geometry with two sulfate groups as chelating and two sulfate groups as bridging ligands. O—H⋯O and N—H⋯O hydrogen bonds consolidate the structure into a three-dimensional network. The dependence of unit-cell dimensions of the isotypic compounds on the lanthanide atomic number is discussed.
Perinatal Mood and Anxiety Disorders in Women Undergoing Medically Assisted Reproduction

Background: Women taking advantage of medically assisted reproduction (MAR) techniques may differ from spontaneously conceiving women (nonMAR) in risk of depression and/or anxiety. We aimed to investigate possible differences between MAR and nonMAR through the use of the Edinburgh Postnatal Depression Scale in a sample of Italian-speaking women at their third trimester of pregnancy. Methods: We administered the Edinburgh Postnatal Depression Scale (EPDS) to two groups of pregnant women, MAR and nonMAR, at the third trimester of pregnancy (T0), one month after delivery (T1), and three months after delivery (T2) from February 2013 to December 2019. EPDS total scores cutoffs were ≥9 for risk of depression, 9–11 mild depression, ≥12 major depression, and the EPDS-3A cluster ≥4 was a proxy for anxiety. Results: Included were 1303 nonMAR women and 92 MAR, an expected disproportion. NonMAR and MAR women did not differ on depression or anxiety at any assessment timepoint. MAR women were older than nonMAR, consumed more alcohol and medical drugs, and displayed more complications during pregnancy. Scoring over the threshold on depression risk was associated with foreign nationality, unemployment, psychiatric history of the patient, family or partner, psychiatric problems in past pregnancies, hyperemesis, premenstrual syndrome (PMS), and stressful life events in the last year at baseline, and, for some of them, at other timepoints. In contrast, MAR past or current was associated with having suprathreshold depression at the first-month postpartum follow-up. Conclusions: Taken together, our data show that women opting for MAR do not differ from spontaneously conceiving women regarding psychiatric outcomes but do differ on some sociodemographic and clinical variables.
Response Data Analysis of a Three Phase Airlift Reactor

Different methods of response data analysis in the time and frequency domain were compared in a study of local and overall liquid mixing properties of a gas–liquid–solid internal loop airlift reactor with low density particles. The reactor was analysed using the axial dispersion model as a system consisting of five interrelated zones: draft, annulus and three top sections. Convolution in the time domain was the simplest and most accurate method of response data analysis, based on the predictions of the mean residence time. This method requires an analytical solution in the time domain of the non-ideal flow model. In cases when such a solution is not available (e.g. for the air lift reactor as a whole), analysis in the frequency domain was used with almost the same results.
Versatile particle collection concept for correlation of particle growth and discharge parameters in dusty plasmas

The feasibility of collecting nanoparticles from a dusty plasma by means of the neutral drag force is investigated. The nanoparticles are formed in a capacitively coupled asymmetric discharge running in an Ar/C2H2—mixture at a frequency of 13.56 MHz and an RF-power of 9 W. By opening a gate valve between the plasma reactor and a vacuum chamber at a lower pressure at any desired point of the growth cycle of the dust particles a neutral gas flux is induced that drags the particles out of the plasma onto a substrate. By changing the parameters of the collection process, e.g. the substrate positioning or the substrate temperature, the efficiency of the collection process can be adjusted. Information about the particle size distributions is obtained by performing ex situ SEM measurements. As the collection process creates a time stamp in the in situ recorded control parameters, e.g. the self-bias voltage or the process gas pressure, a direct and precise correlation between the control parameters and the particle size distribution is obtained.
An Improved Inverse-Time Over-Current Protection Method for a Microgrid with Optimized Acceleration and Coordination

This paper presents an improved inverse-time over-current protection method based on the compound fault acceleration factor and the beetle antennae search (BAS) optimization method for a microgrid. The proposed method can not only significantly increase the operation speed of the inverse-time over-current protection but also improve the protection coordination by considering the possible influential factors in terms of microgrid operation modes, distributed generation (DG) integration status, fault types, and positions, which are marked as the most challenging problems for over-current protection of a microgrid. In this paper, a new Time Dial Setting (TDS) of inverse-time protection is developed by applying a compound fault acceleration factor, which can notably accelerate the speed of protection by using low-voltage and short-circuit impedance during the fault. In order to improve the protection coordination, the BAS algorithm is then used to optimize the protection parameters of the pick-up current, TDS, and the inverse time curve shape coefficient. Finally, case studies and various evaluations based on DIgSILENT/Power Factory are carried out to illustrate the effectiveness of the proposed method.
From Style to Status and to Power: When and Why Do Stylistic Choices in Footwear Make Women Feel and Act Powerful?

This work examines the interplay between power, status and style. Building on the dual role of power and status as two primary sources of social influence in contemporary consumer society, we propose that stylistic choices associated with greater status can imbue the wearer with greater feelings of power. We focus on a pervasive stylistic choice for women – whether to wear heels – and test two critical relationships regarding consumers' choice of heels that can act as a bridge between status and power. First, we propose that the stylistic choice of wearing heels increases wearers' perceived status (but not perceived power) – the heeled status-enhancement hypothesis, whereby (1) wearing heels increases wearers' perceived status (but not perceived power) among observers and (2) lacking power (vs having power or baseline) yields greater desire for heels over flats. Second, we propose that an increase in status stemming from wearing heels increases consumers' feelings and behaviours of high power – the status–power transfer hypothesis. Three studies confirm the use and perception of heels as status symbols and provide support for both hypotheses. We show that wearing heels (vs flat shoes) makes individuals feel and behave more powerfully by thinking more abstractly and taking more actions, two hallmarks of high power, but only when heels are worn conspicuously (i.e., the wearer knows the observer sees them). In addition, these effects are mediated by wearer's feelings of power and unexplained by perceptions of sexiness. Implications for the literatures on style, status, power and conspicuous consumption are discussed.
Simulations of Atmospheric Rivers, Their Variability, and Response to Global Warming Using GFDL’s New High-Resolution General Circulation Model

A 50-km-resolution GFDL AM4 well captures many aspects of observed atmospheric river (AR) characteristics including the probability density functions of AR length, width, length–width ratio, geographical location, and the magnitude and direction of AR mean vertically integrated vapor transport (IVT), with the model typically producing stronger and narrower ARs than the ERA-Interim results. Despite significant regional biases, the model well reproduces the observed spatial distribution of AR frequency and AR variability in response to large-scale circulation patterns such as El Niño–Southern Oscillation (ENSO), the Northern and Southern Hemisphere annular modes (NAM and SAM), and the Pacific–North American (PNA) teleconnection pattern. For global warming scenarios, in contrast to most previous studies that show a large increase in AR length and width and therefore the occurrence frequency of AR conditions at a given location, this study shows only a modest increase in these quantities. However, the model produces a large increase in strong ARs with the frequency of category 3–5 ARs rising by roughly 100%–300% K−1. The global mean AR intensity as well as AR intensity percentiles at most percent ranks increases by 5%–8% K−1, roughly consistent with the Clausius–Clapeyron scaling of water vapor. Finally, the results point out the importance of AR IVT thresholds in quantifying modeled AR response to global warming.
The effect of amino acids on the dissolution rates of amorphous silica in near-neutral solution

Amino acids are ubiquitous in the Earth’s surface environments as reactive biological molecules produced by every living thing including bacteria. To evaluate the effects of amino acids on mineral dissolution and to reveal the mechanism by which they interact with the mineral surface, we performed dissolution experiments of X-ray amorphous silica in solution containing 0.1 mmol Na with 10.0 mmol amino acids such as cysteine, asparagine, serine, tryptophan, alanine, threonine, histidine, lysine and arginine in near-neutral solutions. Dissolution experiments in solutions of 0.1, 1.0 and 10.0 mmol NaCl without amino acids were also conducted as amino acid-free controls. The results of this study indicate that basic amino acids such as histidine, lysine and arginine can interact more strongly with the negatively charged surface of amorphous silica than other non-basic amino acids due to their greater dissociation, thus forming cationic species. This electrostatical interaction enhanced dissolution rates of amorphous silica by approximately one order of magnitude compared with amino acid-free controls. In contrast, no significant effect on the dissolution rates of amorphous silica was observed in solutions containing cysteine, asparagine, serine, tryptophan, alanine and threonine because of lesser interaction with the surface of amorphous silica.
Performance Analysis of Ml Techniques for Spam Filtering

The rise in the volume of unwanted spam emails has made the development of a lot more necessary more reliable and robust filters for antispam. Current machine learning approaches are used to excel Spam emails can be detected and filtered. Filtering solutions to text spam. The analysis discusses core principles, actions, efficacy, and Spam filtering trend for research. The first topic in the research study aims at the requests Machine learning approaches for the operation of filters of spam by the leading providers of internet infrastructure (ISPs) The increasing quantity of unnecessary bulk email (also called spam) has generated a secure need Filters for anti-spam. Then the review compares the strengths and disadvantages of existing methods of machine learning and open research Spam handling problems. As future strategies suggested extreme leaning and strongly opposed schooling that can handle the danger of spam emails effectively. KeywordsSpam, Machine learning, Computer Security, Recall, Precision
Copolymer resin. VII. 8‐hydroxyquinoline‐5‐sulfonic acid–thiourea–formaldehyde copolymer resins and their ion‐exchange properties

8-Hydroxyquinoline-5-sulfonic acid–thiourea–formaldehyde copolymer resins were synthesized through the condensation of 8-hydroxyquinoline-5-sulfonic acid and thiourea with formaldehyde in the presence of hydrochloric acid as a catalyst and with various molar ratios of the reacting monomers. The resulting copolymers were characterized with UV-visible, IR and 1H-NMR spectral data, employed to determine the reactivity of monomers. The average molecular weights of these resins were determined with vapor pressure osmometry and conductometric titration in a nonaqueous medium. The chelation ion-exchange properties were also studied with the batch equilibrium method. The resins were proved to be selective chelating ion-exchange copolymers for certain metals. The chelation ion-exchange properties of these copolymers were studied for Cu2+, Ni2+, Co2+, Pb2+, and Fe3+ ions. The study was carried out over a wide pH range and in media of various ionic strengths. The copolymers showed a higher selectivity for Fe3+ ions than for Cu2+, Ni2+, Co2+, and Pb2+ ions. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009
Entwining indigenous knowledge and science knowledge for sustainable agricultural extension: exploring the strengths and challenges

ABSTRACT Purpose To explore the challenges and strengths of employing an extension approach, which entwines indigenous knowledge and science, for the purpose of enhancing sustainable agricultural practices. Design/methodology/approach We assessed an agricultural extension approach which entwined indigenous knowledge and science. Data for this paper were qualitative and quantitative in nature as gathered from semi-structured interviews, farmer observations, surveys and the researcher’s field notes. Findings Indigenous knowledge has enormous potential to contribute to sustainable agriculture, yet it is rarely included in agricultural extension. There are many inhibiting factors which may contribute to the lack of inclusion of indigenous knowledge in extension programmes, including: perceived value of indigenous knowledge; knowledge protocols; cultural constraints; access to indigenous knowledge; and, misrepresentation of indigenous knowledge, but also strengths such as enhanced sustainable agricultural practices. Practical Implications Understanding the strengths and challenges of entwining indigenous knowledge and science may support extension policies which further value indigenous knowledge and recognise accessibility and property rights, thus maximising the strengths and limiting the challenges. Theoretical implications Whilst the present study further supports theories which recognise the challenges (accessibility; perceived value; intellectual property rights; cultural embeddedness) and strengths (contribution to sustainable agriculture) of including indigenous knowledge in agricultural extension, this study also offers an alternative approach to agricultural extension. Originality Much has been written regarding the value of indigenous knowledge and its potential in sustainable agriculture. This paper explicitly reports on the strengths and challenges of entwining indigenous knowledge and science in an alternative agricultural extension approach.