Miracle-dz/UniFAR-FTUs huggingface dataset:
A family of Wien‐type oscillators modified for chaos

SUMMARY A family consisting of four Wien-type oscillator circuits are modified for chaos by direct replacement of one of the linear resistors with an asymmetrical-type non-linearity introduced by a junction field e⁄ect transistor (JFET) operating in its triode region and the addition of a single capacitor. The internal op amp dominant pole is found to play a major role in understanding the chaotic behaviour of the proposed circuits. Mathematical models that describe the observed behaviours are derived. The well known Wien bridge oscillator design equations are shown to be useful as a starting point for chaos modification. Experimental laboratory results, PSpice simulations and numerical simulations of the mathematical models are provided for this family of autonomous RC chaos generators. ( 1997 John Wiley & Sons, Ltd.
A Rare Case of Sagliker Syndrome in 16 Year-old Child: Complication of Untreated Hyperparathyroidism

Sagliker syndrome is a syndrome described in patients with chronic kidney disease (CKD) in the course of untreated or inadequately treated secondary hyperparathyroidism. We reported one patient male, 16 year-old with CKD stage V on regular hemodialysis, presented with change in facial feature overtime, characterized by uglifying face with enlarged upper and lower jaws, malformation of jaws, oral mass, abnormality of teeth, and deformity of legs. That manifestation was accompanied by history of bone fracture and other problems such as cardiomyopathy, mild tricuspid regurgitation, trivial mitral regurgitation. Laboratory examination found hyperparathyroid, vitamin D insufficiency, hypocalcemia, hyperphosphatemia, anemia, thrombocytopenia, and decreased glomerular filtration rate. Radiological imaging found osteodystrophy appearance on long bones, calvaria, and jaw bones. Patient had history of inadequately treated mineral disorder. Patient was treated by regular hemodialysis, antihypertensive medication, calcitriol, phosphate binder, folic acid, and erythropoeitin stimulating agent after recognition of the syndrome. Parathyroidectomy cannot be done in this patient. The early recognition of Sagliker syndrome would lead to safe and effective treatment by parathyroidectomy and medication which can decrease morbidity and longterm complication. The inability to correct all the morphologic changes can be catastrophic for those patients, hence appropriate treatment for CKD must begin early by the time of diagnosis in specialized centers.
1. Crowdfunding: an introduction

Crowdfunding can be defined as ‘efforts by individual entrepreneurs or groups to fund their ventures by drawing small contributions from large groups of individuals over the internet without using standard financial intermediaries’ (Mollick, 2014), or ‘open calls, mostly through the Internet, for the provision of financial resources either in the form of donation or in exchange for the future product or some form of reward to support initiatives for specific purposes’ (Belleflamme et al., 2014). Crowdfunding emerged as part of a recent movement where the general public, or ‘the crowd’, is invited to participate in the process of value creation traditionally conducted within more closed systems. Whereas crowdsourcing, its close relative, focuses on how the crowd may take an active part in a company’s innovation process (Bughin et al., 2012; Ghezzi et al., 2018), crowdfunding provides a mechanism through which the general public can financially support nascent ideas and entrepreneurs, a role traditionally reserved to a select few, such as accredited equity investors and bankers. In this sense, crowdfunding has led to a more distributed or collective nature of entrepreneurial finance and created new classes of investors, such as ‘customer investors’ (Aldrich, 2014). This allows entrepreneurs to engage with a greater number, and a more diverse set, of backers and investors all over the world (Nambisan, 2017). Some see crowdfunding ‘democratizing’ access to entrepreneurial finance for underrepresented minorities and entrepreneurs hailing from unfavourable geographic locations (Agrawal et al., 2011; Greenberg and Mollick, 2017). As a phenomenon, crowdfunding has a long history in the areas of art, charity and political campaigns (Kuppuswamy and Bayus, 2018; Ordanini et al., 2011). Famous projects that were funded by small contributions from a large number of donors include the Statue of Liberty, some of Mozart’s piano concertos, and the translation of Homer’s Iliad from Greek to English (Kuppuswamy and Bayus, 2018; Short et al., 2017). The recent surge in crowdfunding activities draws from the emergence of Internet and particularly Web 2.0 facilitating interaction between users,
An empirical analysis of factors impacting career decisions in South African construction industry

Purpose – The purpose of this paper is to investigate the perception of high school students on the factors impacting their career decisions and whether gender and grade have an influence on the decision‐making process.Design/methodology/approach – Literature review was used to identify relevant factors which were incorporated into the design of the survey instrument. The questionnaire was administered via a postal survey and information collected from 599 male and 491 female high school students in the Western Cape Province. Survey response data were subjected to descriptive statistics and subsequently parametric tests.Findings – Salary, working conditions, opportunities for promotion and lifelong learning were reported by both male and female students as the most important factors, whereas family tradition and peers were the least important factors according to the male and female high school students, respectively. Grade had a significant impact on the process with students in Grade 11 scoring higher o.
Embodying Experiential Learning: Cultivating Inner Peace in Higher Education

This paper presents a reflection on experiential teaching and an experiment in embodied learning for peacebuilders and changemakers. The theories, practices and experiments are part of a postgraduate course in Peace of Mind, offered at the University of Sydney. The intention of this course is to invite the reader to see experiential learning and awareness-based practices as tools that enable the possibility to evolve our humanness. Interdisciplinary abstract methodologies from Indigenous and phenomenological philosophies support the argument that granular and qualitative knowledge emerges through the embodiment of human expression. It addresses the concept of fragmentation of the self, the importance of pausing and giving voice to knowledge that words cannot convey. Through the arts, the paper shows non-linear forms of communication with visual experiments. The purpose of this collaborative work is in the craft, the process, and beyond the authorship. Embodying Experiential Learning Journal of Awareness-Based Systems Change, Volume 1, Issue 2, pp. 31-50 32
Effects of Reynolds Number on Flow over 76/40-Degree Double-Delta Wings

The effects of the Reynolds number on the flow over 76/40-deg double-delta or strake-wing configurations and the capability of numerical solutions to predict these effects are discussed. The flow over the strake appears to be little affected by the Reynolds number. On the wing strong effects are evident on the flow on and off the wing surface. Numerical solutions tend to reasonably well predict the flow over these types of configurations
ORR_A_336185 255..273

Rheumatology Unit San Pietro Fatebenefratelli Hospital, Rome, Italy; Department of Metabolic Diseases of Bone and Joints, V.A. Nasonova Research Institute of Rheumatology, Moscow, Russian Federation; Center for Treatment Comparison and Integrative Analysis (CTCIA) at Tufts Medical Center, Boston, MA, USA; Lubelskie Centrum Diagnostyczne, Świdnik, Poland; Department of Physical Medicine and Rehabilitation, Istanbul University, Istanbul, Turkey; Department of Rheumatology, University of Ioannina, Ioannina, Greece; Department of Rheumatology Al Azhar University, Cairo, Egypt; Department of Rheumatology, Belarusian State Medical University, Minsk, Belarus; Division of Rheumatology, University of Florence, Florence, Italy; Department of Musculoskeletal Medicine and Sports, Hospital Košice -Šaca, Kosice Saca, Slovakia; Semmelweis University, Department of Traumatology Uzsoki Hospital, Department of Orthopaedics&Traumatology FIFA Medical Centre of Excellence Uzsoki u. 29–41, Budapest, Hungary; Department of Orthopaedic Surgery, Charles University and Motol University Hospital, Prague, Czech Republic; Rheumatology Division, Henri-Mondor Hospital, Créteil, France Abstract: Osteoarthritis (OA) is a significant cause of disability. Considering the increasing diffusion of the viscosupplementation (VS) with hyaluronic acid (HA), the International Symposium Intra Articular Treatment (ISIAT) appointed a Technical Expert Panel (TEP) to identify the criteria for successful VS with a specific HA in OA; this through a systematic literature review (SLR), performed following the PRISMA guidelines interrogating Medline, Embase, Cochrane Library, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Grey Matters and American College of Rheumatology (ACR/EULAR) databases and the opinion of international experts. The research included only studies on adults and humans without limitations of language or time of publication. Researchers extracted both quantitative and qualitative data from each study. Mixed Methods Appraisal Tool (MMAT) was used to perform quality analysis for the level of evidence. The SLR retrieved 385 papers, 25 of which were suitable for the analysis. The TEP focused on the different formulations of the product Sinovial [HA 0.8%, HA 1.6%, HA 2%, 800–1200 kDa, HA 3.2% (1400–2100 kDa/65–110 kDa)]. The choice was due to the vast amount of evidence available. The TEP weighed the evidence in two rounds of a Delphi survey; the results, and any disagreement, were discussed in a final session. Three domains were considered: 1) the patients’ characteristics associated with the best results; 2) the contraindications and the conditions linked to increased risk of failure; 3) the clinical conditions in which VS is considered appropriate. The TEP concluded that VS with HA is safe and effective in the treatment of knee and hip OA of grades I to III and that it is possible to undertake VS in other situations (eg grade IV Kellgren-Lawrence – KL); a comprehensive examination of the patient should be performed before the procedure.
Roadmap to Current Benchmarking Literature

Benchmarking has received extensive coverage in recent publications, but the topic has often described conflicting objectives and differing recommendations for individual applications. To reduce the task of reviewing benchmarking literature for benchmarking opportunities or academic research, this article provides a summary matrix approach to current benchmarking topics. Included in this review are summaries of available textbooks, and journal and periodical articles. Benchmarking has provided the incentive for U.S. industrial organizations to look at their on-going operations with a critical eye toward continuous process improvement. However, as shown in the summary matrix, specific analytical tools to address this objective have been generally overlooked in the benchmarking literature.
An analytical solution of the stiffness equation for linear guideway type recirculating rollers with arbitrarily crowned profiles

Abstract This article derives the stiffness equation for linear guideway type (LGT) recirculating rollers with arbitrarily crowned profiles. Recirculating rollers compressed between a carriage and a profile rail are simulated as rollers compressed between two plates, and each roller is divided into three parts: two crowned and one cylindrical. The superposition method is introduced to obtain the stiffness equation for a crowned roller, for which rollers with circular, quadratic, cubic, fourth-order power, and exponential profiles were analysed. A model of discrete normal springs is used to obtain the stiffness equation for LGT recirculating rollers. The results reveal that a higher-order power can make an LGT with higher stiffness. The stiffness of the exponential profile is close to that of the fourth power profile. Therefore, recirculating rollers with an exponential profile, a small crowned depth, and a large crowned length seem to be optimal, obtaining a higher LGT stiffness and a lower edge stress concentration.
Reducing feedback requirements of workload control

The workload control concept is known as a robust shop floor control concept. It is especially suited for the dynamic environment of small- and medium-sized enterprises (SMEs) within the make-to-order sector. Before orders are released to the shop floor, they are collected in an ‘order pool’. To make the release decision, information regarding the actual situation on the shop floor is required. Within SMEs, this information is often incomplete, incorrect or delayed. However, the workload control approaches discussed in the literature assume precise feedback information. The paper discusses the opportunities for information feedback from the shop floor for centralized order release within SMEs and analyses the information requirements of workload control approaches. These approaches are adapted based on more realistic assumptions regarding information supply within SMEs. The different approaches are compared and assessed by a simulation study. Results show that additional investments in more accurate information supply lead to decreasing marginal improvements in overall shop performance. Additionally, they indicate that the choice of the right workload control approach might have important effects on performance.
A singular-value decomposition approach for ambiguity group determination in analog circuits

An efficient approach for ambiguity group determination in low-testability analog linear circuits is presented. It is based on the use of the singular-value decomposition of the testability matrix of the circuit under test, and permits us to determine canonical ambiguity groups also in the case of circuits of relatively large dimensions. The new approach is characterized by a numerical robustness not present in previous approaches, which give only an estimate of both testability and ambiguity groups. A program implementing the proposed method has been developed by exploiting symbolic analysis techniques. Examples of application of the new approach are considered through the use of this program.
Numerical and Discrete Modeling of Reproductive Endocrinological Networks

This thesis deals with the mathematical modeling of endocrinological networks that are underlying the female hormone cycle. These networks consist of a variety of biological mechanisms in different parts of the organism. Their interaction leads to periodic changes of various substances that are necessary for reproduction. In every cycle, hormones are secreted from the hypothalamic-pituitary-gonadal axis into the bloodstream, where they distribute and influence several functions in the body. Their most important task in reproduction is to regulate processes in the ovaries, where follicles and corpus luteum develop. These produce steroids that are released into the blood and from therein regulate the processes in the hypothalamic-pituitary-gonadal axis. The hormonal cycle is thus a result of a large feedback loop, whose self-regulation is a complex interplay of multiple components. For the modeling of these processes, a high abstraction level is required, which can be realized by various modeling approaches. In this work, some of these approaches are implemented. The first step in all approaches is the representation of the most important mechanisms in a flowchart. In the next step, this can be implemented as a system of ordinary differential equations using Hill functions, as a piecewise defined affine differential equation model, or directly as a purely regulatory model. Using this approach, a differential equation model for the hormonal cycle of cows is developed. This is compared with a more advanced model of the menstrual cycle in humans. Both models are validated by comparing simulations with measured values, and by studying external influences such as drug administration. For the example of the bovine estrous cycle, continuous analysis methods are used to investigate stability, follicular wave patterns, and robustness with respect to parameter perturbations. Furthermore, the model is substantially reduced while preserving the main simulation results. To take a look at alternative modeling approaches, corresponding discrete models are derived, exemplified for the bovine model. For a piecewise affine version of the model, parameter constraints for the continuous model are calculated. Stability is analyzed globally for a purely discrete model. In addition, core discrete models are derived, which retain the dynamic properties of the original model.
The Modern Interior Revisited

In this essay, I would like to focus on some thoughts that I developed while I was writing a book for Reaktion Books in London, titled The Modern Interior. I wrote this book to address a number of questions that had arisen in my mind over the last decade or so while I was working on two other books — As Long as It’s Pink: the Sexual Politics of Taste, published in 1995, which addressed the issue of the marginalization of feminine taste within modernism, and Elsie de Wolfe: The Birth of Modern Interior Decoration, published a decade later, in which I explored the implementation of feminine taste in the interior from the perspective of the life and work of a single individual. 1
Post-Filter Optimization for Multichannel Automotive Speech Enhancement

In an automotive environment, quality of speech communication using a hands-free equipment is often deteriorated by interfering car noise. In order to preserve the speech signal without car noise, a multichannel speech enhancement system including a beamformer and a post-filter can be applied. Since employing a beamformer alone is insufficient to substantially reducing the level of car noise, a post-filter has to be applied to provide further noise reduction, especially at low frequencies. In this thesis, two novel post-filter designs along with their optimization for different driving conditions are presented. The first post-filter design utilizes an adaptive smoothing factor for the power spectral density estimation as well as a hybrid noise coherence function. The hybrid noise coherence function is a mixture of the diffuse and the measured noise coherence functions for a specific driving condition. The second post-filter design applies a new multichannel decisiondirected a priori SNR estimator based on both temporal and spatial smoothing. For different driving conditions, both post-filters are instrumentally optimized: For the first post-filter, the optimal adaptive smoothing factor and the optimal hybrid noise coherence function are obtained. For the second post-filter, the weighting factors of the temporal and spatial smoothing parts are optimized. Compared to state-of-the-art post-filters, both post-filter designs employing the optimized parameters improve the overall noise reduction performance significantly for different driving conditions. Generally, manually finding the optimal parameterization of a noise reduction algorithm is a time-consuming task. In this thesis, the two new post-filter designs are thus instrumentally optimized by using a figure of merit (FoM). We define the FoM as an entity, which comprises three independent instrumental measures for the speech component quality, the level of noise attenuation, and the amount of musical tones. Particularly, a new weighted log kurtosis ratio measure is proposed for instrumental musical tones assessment in a black-box test manner, which does not mandate any knowledge of internal variables of the noise reduction algorithm under test and can be applied to a wide range of noise reduction algorithms. Subjective listening tests reveal that the weighted log kurtosis ratio measurements can provide a high correlation to the perceived amount of musical tones. In addition, a single-channel application example of jointly optimizing the smoothing factor and the a priori SNR floor of the decision-directed a priori SNR estimation is shown using an FoM. For some noise reduction algorithms, yet unknown optimal values of the parameters of interest are identified by applying the FoM-based instrumental optimization method and subjectively verified.
Adolescent Attachment Profiles Are Associated With Mental Health and Risk-Taking Behavior

This person-oriented study aimed to identify adolescents’ hierarchical attachment profiles with parents and peers, and to analyze associations between the profiles and adolescent psychosocial adjustment. Participants were 449 Finnish 17–19-year-olds reporting their attachments to mother, father, best friend, and romantic partner and details on mental health (internalizing symptoms, inattention/hyperactivity, and anger control problems) and risk-taking behavior (substance use and sexual risk-taking). Attachment was measured with Experiences in Close Relationships – Relationship Structures (ECR-RS); internalizing, inattention/hyperactivity, and anger control problems with Self-Report of Personality — Adolescent (SRP—A) of the Behavior Assessment System for Children, third edition (BASC-3); substance use with the Consumption scale of the Alcohol Use Disorders Identification Test (AUDIT-C) and items from the Finnish School Health Promotion Study; and sexual risk-taking behavior with the Cognitive Appraisal of Risky Events (CARE). Latent profile analysis identified five attachment profiles: “All secure” (39%), “All insecure” (11%), “Parents insecure – Peers secure” (21%), “Parents secure – Friend insecure” (10%), and “Parents secure – Partner insecure” (19%). “All insecure” adolescents showed the highest and “All secure” adolescents the lowest levels of mental health problems and substance use. Further, parental attachment security seemed to specifically prevent substance use and anger control problems, while peer attachment security prevented internalizing problems. Our findings help both understand the organization of attachment hierarchies in adolescence and refine the role of specific attachment relationships in psychosocial adjustment, which can be important for clinical interventions in adolescence.
Gut microbiota–driven brain Aβ amyloidosis in mice requires microglia

Dodiya et al. characterize an APPPS1-21 mouse model of Aβ amyloidosis with an antibiotic-perturbed microbiome. Fecal transplantation approaches and microglial depletion studies are employed to establish the causality between the gut microbiota, microglia, Aβ, and neurodegeneration.
Scour hole characteristics of two unequal size bridge piers in tandem arrangement

The work reported herein is concerned with a carefully controlled extensive experimental investigation of the effect of mutual interference of a group of two bridge piers of unequal sizes placed in tandem arrangement at varied pier spacing under steady, uniform flow clear water scour conditions on scour hole characteristics. The data on various characteristics of scour holes developed around the piers are collected and analyzed. Present study reveals considerable mutual interference effect on scour hole characteristics which may lead to bridge failure, if pier group effect is ignored and bridge piers are designed merely as an isolated pier.