Multiple Concepts Research Articles

Dual-Space Transfer Learning Based on an Indirect Mutual Promotion Strategy

Transfer learning is designed to leverage knowledge in the source domain with labels to help build classification models in the target domain where labels are scarce or even unavailable. Previous studies have shown that high-level concepts extracted from original features are more suitable for cross-domain classification tasks, so many transfer learning methods transfer knowledge by modeling high-level concepts on the original feature space. However, there are two limitations to this method: First, learning high-level concepts directly on the original feature space will reduce the proportion of shared information contained in common features in the process of knowledge transfer bridge construction. Second, only learning multiple high-level concepts on the original feature space, the latent shared information contained in the domain-specific features cannot be targeted learned, so the latent shared information in the domain-specific features cannot be effectively used. To overcome these limitations, this paper proposes a novel method named Dual-Space Transfer Learning based on an Indirect Mutual Promotion Strategy (DSTL). The DSTL method is formalized as an optimization problem based on non-negative matrix tri-factorization. DSTL first extracts the common features between domains and constructs the common feature space. Then, the learning of the high-level concepts of the common feature space and the original feature space is integrated through an indirect promotion strategy, which can enhance the learning effect of common features and domain-specific features through the mutual help of the two feature spaces. The system test on benchmark data sets shows the superiority of the DSTL method.

Youth Positive Mental Health Concepts and Definitions: A Systematic Review and Qualitative Synthesis.

Background: Research on youth positive mental health (PMH) lacks comprehensiveness. We reviewed literature to (i) identify and understand concepts related to youth PMH and (ii) to summarize their definitions under broad conceptual themes. Method: We conducted a systematic review using PRISMA methodology. The protocol was registered in PROSPERO database (ID:CRD42020203712). Pubmed, Embase, PsycINFO, and OpenGrey databases were searched for publications that examined, assessed, explained, or defined PMH concepts in youth populations. Methods included searching, independent screening and review using pre-determined inclusion and exclusion criteria, extraction, coding, and iterative thematic syntheses of literature. Results: Of 3427 unique records identified, 105 articles from 26 countries met review criteria. Qualitative analysis resulted in 22 broad themes of youth PMH. These included interpersonal relationships (interpersonal competence, school connectedness, etc.), positive emotions (feel and create pleasant emotions, gratitude, etc.), self-efficacy (strengths, human agency, etc.), life satisfaction (global assessment of one’s life), and personal growth (goal achievement, life aspirations, etc.). Five novel concepts related to youth PMH were identified. Conclusions: Our review summarized and operationalized multiple concepts of youth PMH for applications in research, evaluation, and public health improvement.

Towards narrowing the reality gap in electromechanical systems: error modeling in virtual commissioning

Digital factories and smart manufacturing systems have been increasingly researched and multiple concepts were developed to cope with prevailing ever-shortening life-cycles. The ubiquitous digital twin, despite many definitions, is often praised for accurate virtual models. One key idea to improve manufacturing through such virtual models is virtual commissioning (VC), aiming at early machine code validation. VC and its virtual models are still lacking behind their real counterparts. This gap between reality and its virtual model, commonly termed reality gap, increases the complexity of creating cyber-physical systems. An especially stark contrast is visible between the idealized virtual model and a real machine encountering errors. While error simulations exist in other fields of research, a thorough investigation in VC is missing. Thus, this paper addresses the task of narrowing the reality gap in VC based on two steps. First, a comprehensive body of research of possible errors encountered in virtual commissioning is analyzed. Secondly, the feasibility of error implementation is discussed. This paper lays the foundation for narrowing the reality gap and enabling test automation and digital twin-based control.

Medicine and Healing in the Age of Slavery edited by Sean Morey Smith and Christopher D. E. Willoughby

This volume offers new perspectives on medicine and slavery in the Atlantic World. Overall, the editors’ goal is to recover the voices and actions of black and indigenous peoples through “reading [texts] against the grain” of texts often produced for a different purpose by whites. The geographical scope of these chapters is deliberately wide, moving across time and space in an attempt to break through the various partitions of slavery studies. Thus, the first three chapters under the heading “Knowledge” draw as much from anthropological and archaeological sources as they do from more traditional historical texts. In a consideration of indigenous/African healing and magical rituals on the island of Hispaniola, Lauren Derby resurrects the Taino, the island’s indigenous people long considered extinct by historians. She finds their healing stones and magical caves survived via mixture with African slave-healing rites.Likewise, Chelsea Berry and Mary E. Hicks look at African attitudes toward poisoning (Berry, Surinam) and bloodletting rituals (Hicks, Salvador da Bahia, Brazil) using legal cases and other records. Like Derby, both of these historians explore the power of black practitioners in resisting the white enslavers, and their ability to carve out positions of authority over their own and other slave bodies. Berry finds 102 poison cases in her data set drawn from trial records. Hicks uses newspaper advertisements for the barbers who provided broader health services, as well as white voices describing black medical practices.The second section of the book clusters three chapters about the “experience” of medicine and healing. Deirdre Owens’ chapter employs haptic (touch) studies literally and metaphorically, as when mental patients are described as being “out of touch” with their surroundings, or white men touch black bodies uninhibitedly. Elise Mitchell reconsiders the prevailing historiography of slaves feigning illness. Instead of seeing this tactic as a mode of resistance, Mitchell asks us to recognize the “unbelievable suffering” that such reports reveal. The slaveholder is the one who applied the label “feigned illness”; his or her projection of this category onto the bodies of ill slaves was a process of dehumanization, as well as an excuse to force work from slaves no matter how much pain wracked their bodies.Brandi M. Waters draws attention to the process of manumission as a strategy for slaveholders to deal with disabled slaves. In such dealings, the slaveholders accepted that the weakened slave had limited residual productivity, lower re-sale value, and the prospect of needing long-term maintenance. Waters’ case study from Columbia, which examines the process from the slave’s point of view, finds that slaves wanted the freedom to choose their own health-care practitioner, whose care might well be at odds with that of the slaveowner. Waters’ work allows a rare glimpse into the agency of slave patients in resisting regular medicine.The final section, “Profession,” looks at how U. S. medical doctors exploited slave patients to create a racialized medicine and assert authority over slave bodies and their diseases. Rana Hogarth explores an early slave hospital in Charleston, where a white doctor treated slaves just removed from ships who were too ill to be sold or whose ill health was inconvenient. In the second chapter, Timothy Lockley revisits the oft-repeated claim that blacks did not fall victim to yellow fever. His novel contribution is to see a transition from assigning this immunity by skin color to attributing it to blood. He also finds observers commenting that “mulattos” of various percentages were less well protected. Finally, Leslie Schwalm reviews the many ways that white northern physicians interrogated black bodies during the U.S. Civil War.A brief prologue by Vanessa Gamble and an epilogue by Sharla M. Fett round out this impressive collection. This valuable book will hopefully inspire further scholarship and additional conferences. In the introduction, the editors listed several goals for their enterprise—to decentralize Western medicine in the lives of slaves; to engage multiple concepts of illness within slave life; and to expand understanding of the master–slave relationship. This book, which addresses all these concerns, should be especially useful to young scholars exploring new ways of approaching this most fraught topic of Western history.

Malaysian Queer Literature

This article examines Malaysian queer literature (MQL) in terms of what it is, its characteristic elements, and how the way it is written responds to the differential treatment of lesbian, gay, bisexual, transgender, and queer or questioning (LGBTQ) people in Malaysia. The article uses the secondary data analysis method to examine existing resources on MQL to ascertain what it is, its origin, and evolution. The article then applies the analytical method developed by Blackburn, Clark, and Nemeth to examine the elements of MQL in Malaysia’s anthologies of queer literature, namely, Body 2 Body - A Malaysian Queer Anthology (2009) and Mata Hati Kita/The Eyes of Our Hearts (2016). The analysis reveals that MQL is a new literary genre in the Malaysian literary scene and is produced for a number of reasons including to open up avenues of discussion about queer that remains subject to condemnation by the mainstream local society. Two characteristic elements of MQL are identified, namely, the multiple conceptions of sexual and gender identities, and the disruption of sexual and gender norms. The analysis also reveals that MQL is written with these elements in mind as a way to respond to the discriminatory treatment of LGBTQ people in the country. The article has implications for current efforts that seek to use MQL not only to provide readers with the diverse ways of being in the world but also to rethink existing discourses that continue to condemn LGBTQ people on the basis of gender and sexual diversity.

Geometric anisotropy induced higher-order topological insulators in nonsymmorphic photonic crystals

To a significant extent, the rich physical properties of photonic crystals (PCs) are determined by the underlying geometry, in which the composed symmetry operator and their combinations contribute to their unique topological invariant to characterize the topological phases. In this work, we use geometric anisotropy in the 2D square lattice composed of four rectangle blocks. Due to the presence of glide symmetry, we show a variety of topological phase transitions in designed nonsymmorphic PCs and these transitions shall be understood in terms of the Zak phase and Chern number in synthetic space, as well as the pseudospin-2 concept, combinationally. Furthermore, Zak phase winding in the periodic synthetic parameter space yields high-order Chern number and double interface states. In terms of the extended Zak phase and pseudospin Hall effect, a higher-order topological insulator is constructed in the PC system. Based on the combination of different lattices, this represents a unique system that requires multiple topological concepts and indices for theoretical examination and understanding. The intriguing and abundant topological features are also sustained in the corresponding three-dimensional PC slab, which makes it a very interesting platform to control the flow of optical signals.

Multiplicative fault concept and fault observer design for reliability study of degrading reaction wheel

The reaction wheel is a typical actuator and a crucial weak link in the spacecraft attitude control system, and much attention has been paid to its reliability problem. Due to limited samples and high cost for reaction wheel life tests, a simulation method by introducing attitude coupling dynamics and multiplicative fault concept is developed to analyze the logic of electric current as a performance indicator and verify its accuracy for reliability modeling. Furthermore, a new and intrinsic performance indicator of multiplicative fault is proposed for more application scenarios of reliability modeling and an adaptive sliding mode observer is designed for fault estimation. An illustrative example shows that the performance indicator of multiplicative fault can be used for various mission scenarios but requires certain persistent excitation, while electric current is the opposite.

Multi-Target Rough Sets and Their Approximation Computation with Dynamic Target Sets

Multi-label learning has become a hot topic in recent years, attracting scholars’ attention, including applying the rough set model in multi-label learning. Exciting works that apply the rough set model into multi-label learning usually adapt the rough sets model’s purpose for a single decision table to a multi-decision table with a conservative strategy. However, multi-label learning enforces the rough set model which wants to be applied considering multiple target concepts, and there is label correlation among labels naturally. For that proposal, this paper proposes a rough set model that has multiple target concepts and considers the similarity relationships among target concepts to capture label correlation among labels. The properties of the proposed model are also investigated. The rough set model that has multiple target concepts can handle the data set that has multiple decisions, and it has inherent advantages when applied to multi-label learning. Moreover, we consider how to compute the approximations of GMTRSs under a static and dynamic situation when a target concept is added or removed and derive the corresponding algorithms, respectively. The efficiency and validity of the designed algorithms are verified by experiments.

Pendampingan Belajar Matematika Berbantuan Media Pembelajaran Berbasis Game Counting Bunny untuk Peserta Bimbel di Rumah Belajar Matematika

Rumah Belajar Matematika is a tutoring place located in Kebonan Hamlet, Yosowilangun Kidul Village, Yosowilangun District, Lumajang Regency, East Java. The tutoring participants are elementary and junior high school students, totaling 15 people. Based on the results of observations made by the KKN team, so far the tutors at the Mathematics Learning House have never made learning innovations, especially in the use of game-based learning media. This makes us compelled to carry out mentoring activities in learning mathematics by utilizing learning media based on the counting bunny game which can make it easier for students to understand the concepts of addition and multiplication of integers. The expected goals of this service activity include: 1) so that mathematics learning activities in the tutoring can be more attractive, interesting, and fun, so that tutoring participants can be more enthusiastic in learning mathematics; 2) encourage teachers or tutors in tutoring places to be able to innovate more in learning activities, one of which is the use of learning media; 3) the use of learning media is expected to help make it easier for tutors to convey mathematical material or concepts; 4) students find it easier to understand the material or concepts presented; and 5) student learning outcomes are getting better. This learning mentoring activity was carried out for 2 days, where the KKN team acted as tutors. At the end of the activity, a response questionnaire was given to the tutoring participants to find out their response to the learning process using the counting bunny game, including enthusiasm, motivation, and interest. The results of the participants' responses showed positive results, with an average score of 3.35 and included in the high category, which means that the participants felt more enthusiastic, motivated, more interested in learning mathematics after using the counting bunny game learning media.

Tembo Global Industries Limited – financing dilemma for the COVID-19 project

Research methodology The case proposes a discussion of the time value of money and capital budgeting concepts, including determining the effective overall cost of capital, estimating working capital requirements, consideration of all relevant cash flows – including opportunity costs, finding the present value of future cash flows (annuities and lump-sum cash flows) by linking the concepts of weighted average cost of capital and working capital and net present value (NPV) and internal rate of return (IRR). Case overview/synopsis Jehan Wadia, a newly appointed finance manager of Tembo Global Industries Ltd., is facing a dilemma in recommending an investment decision to Mr Variava, Chief Finance Officer. Implementation of the project requires an investment of INR 82m. Ms Stella, funding division head, proposed financing through equity and term loans in the proportion of 3:2, respectively. Mr Shrinivasan, handling the short-term financial needs of the firm, suggested a finance mix having a higher weight-age of debt. Mr Variava desires to maximize the wealth by taping the opportunity. The case is written for an experience in the capital budgeting dichotomy faced by managers in real-life situations. Complexity academic level This case can be used in various contexts – as a preparatory case in a foundation course of Financial Management at the graduate level to instill the fundamentals for evaluating long-term investment decisions or in courses of Strategic Financial Management or Corporate Finance at the undergraduate or graduate level as a capstone case to reinforce the application of multiple concepts in strategic financial decision making.

Using Multiple Representations to Foster Multiplicative Reasoning in Students With Mathematics Learning Disabilities

Developing and supporting understanding of the meaning of multiplication and multiplicative relationships in students with mathematics learning disabilities requires carefully designed instruction that emphasizes strategic representation use. This article discusses three ways in which teachers can incorporate multiple representations within multiplication instruction to develop a deep understanding of underlying mathematical structures. First, it is important to select concrete and semi-concrete representations (e.g., discrete objects and those that illustrate continuous quantities as length or area) that will help students most accurately model the multiplication or division concept or procedure. Next, provide students with multiple representations that are presented concurrently within the same lesson so that they can make connections among the different types of representations. Last, teachers can support students to use and connect representations through mathematical discourse that elicits student thinking by not only structuring tasks around three processes, reversibility, flexibility, and generalization, but also by posing questions to elicit different ways that students can communicate their ideas using accurate and precise vocabulary.

Internal Family Systems Therapy (IFS): A Compassionate Approach to Therapy

Internal Family Systems Therapy (IFS) has gained recognition globally as an effective psychotherapy and an evidence-based practice. It has seen widespread acceptance and application not only in individual, couple, and family therapy but also in diverse fields such as education, coaching and more. The IFS model was developed by Dr Richard Schwartz based on the concepts of systems therapy and multiplicity of the mind. The non-pathologising approach of IFS views the psychiatric symptoms that a client comes into counselling with, as protectors or parts forced into extreme roles caused by circumstances and experiences for the positive intention of maintaining functioning, despite negative consequences. The approach of IFS reflects compassion and its goal is to restore balance to the client’s inner system by unburdening the parts of their extreme roles, beliefs or feelings, and to restore the client’s Self to leadership. IFS offers an alternative neuroscience-informed intervention model to the stage model of treatment for trauma. The contribution of IFS is not only in the interventions itself but also in advancing therapeutic relationship and for self-therapy. This paper describes the application of IFS therapy to individuals by providing vignettes to highlight the impact of its non-pathologising approach on the client as well as the therapist in the counselling process by viewing parts from a lens of self-compassion.

Conversion of Automated 12-Lead Electrocardiogram Interpretations to OMOP CDM Vocabulary.

Background A computerized 12-lead electrocardiogram (ECG) can automatically generate diagnostic statements, which are helpful for clinical purposes. Standardization is required for big data analysis when using ECG data generated by different interpretation algorithms. The common data model (CDM) is a standard schema designed to overcome heterogeneity between medical data. Diagnostic statements usually contain multiple CDM concepts and also include non-essential noise information, which should be removed during CDM conversion. Existing CDM conversion tools have several limitations, such as the requirement for manual validation, inability to extract multiple CDM concepts, and inadequate noise removal. Objectives We aim to develop a fully automated text data conversion algorithm that overcomes limitations of existing tools and manual conversion. Methods We used interpretations printed by 12-lead resting ECG tests from three different vendors: GE Medical Systems, Philips Medical Systems, and Nihon Kohden. For automatic mapping, we first constructed an ontology-lexicon of ECG interpretations. After clinical coding, an optimized tool for converting ECG interpretation to CDM terminology is developed using term-based text processing. Results Using the ontology-lexicon, the cosine similarity-based algorithm and rule-based hierarchical algorithm showed comparable conversion accuracy (97.8 and 99.6%, respectively), while an integrated algorithm based on a heuristic approach, ECG2CDM, demonstrated superior performance (99.9%) for datasets from three major vendors. Conclusion We developed a user-friendly software that runs the ECG2CDM algorithm that is easy to use even if the user is not familiar with CDM or medical terminology. We propose that automated algorithms can be helpful for further big data analysis with an integrated and standardized ECG dataset.

Managing Paradox with Visuals: Persistence and Adaptation in an Airline’s Crisis Response

Increasing volatility and disruptions, which organizations have to respond to, can contribute to salience of paradoxical tensions. Such can be addressed in proactive or defensive ways. Despite increasing interest in sociomateriality, little is known about its role in management of paradoxes, let alone in the context of a crisis. This paper adopts a video-ethnographic approach to study a materially managed paradox in an airline setting during the COVID-19 crisis. Specifically, a year-long set of meetings was analysed with a focus on a visual artefact used for management of airline operations. Our results show how material mediation with dynamically changing visual artefact contributes to management of adaptability and persistance paradox and how the malleable nature of the visual enabled responding to the disruption, as well as maintaining ongoing operations. Our study showcases the mediation through first splitting the crisis response from continuous issues of operating an airline, and later through merging the two. This paper extends understanding on how material mediation happens as material artifacts are changed, establishing two-way relationship between the discourse and materiality governed by multiple concepts identified as capturing honing, connecting and transcending and leading to different outcomes across the time. Our findings re-emphasize the importance of considering the two-way relationship between the discourse and materiality in management of paradoxes.

ETNOMATEMATIKA DALAM TRADISI PERNIKAHAN ADAT SUKU DAYAK KALIS DI KECAMATAN KALIS KABUPATEN KAPUAS HULU

This study aims to describe the implementation of the stages of the traditional marriage tradition of the Dayak Kalis tribe in Nanga Danau village, Kalis sub-district, Kapuas Hulu district, and to find out of what mathematical activities are include in the implementation of the stages of the traditional wedding tradition. The form of research used is qualitative research with an ethnographic approach. The subjects in this study consisted of three subjects, the first being the traditional chief at the hamlet level, the second subject at the village level, and the third being an elder traditional leader. Data collection techniques used are interview, documentation, and observation techniques. The data collection tools used were interview guides, observation guidelines, cellphone cameras and voice recorders. The result and analysis of the data obtained from this study are (1) At the stage of the Situtukang Baba’ and Paseset activities there is an activity to explain. (2) At the stage of Baru-Baru there are activities to explain, determine location, and count. And the mathematical concepts contained in it are the concepts of counting, the concept of logic, the concept of multiplication, and the concept of multiples.

ANALYSIS OF PARENTS' SOCIAL ECONOMIC STATUS TOWARDS CARIES STATUS IN CHILDREN

A concise and factual abstract is required (maximum length 200 words). The abstract should state briefly the purpose of the research, the principal results, and major conclusions. An abstract is often presented separately from the article, so it must be able to stand alone. References should therefore be avoided, but if essential, they must be cited in full, without reference to the reference list. Non-standard or uncommon abbreviations should be avoided, but if essential they must be defined at their first mention in the abstract itself. Abstract in italics, spacing 1, size 11, Font Book Antiqua also includes keywords. The number of words for the abstract is min. 150-200 words, which contain the problem, objectives, methods, and results. Keywords are a minimum of 3 (three) and a maximum of 5 (five) words that reflect the content of the manuscript. Please avoiding general and plural terms and multiple concepts (avoid, for example, 'and', 'of'). Separate each keyword with a ";" on every word. Be frugal with abbreviations: only abbreviations that are familiar in the field are eligible. These keywords will be used for indexing purposes.

How innovations in methodology offer new prospects for volume electron microscopy

Detailed knowledge of biological structure has been key in understanding biology at several levels of organisation, from organs to cells and proteins. Volume electron microscopy (volume EM) provides high resolution 3D structural information about tissues on the nanometre scale. However, the throughput rate of conventional electron microscopes has limited the volume size and number of samples that can be imaged. Recent improvements in methodology are currently driving a revolution in volume EM, making possible the structural imaging of whole organs and small organisms. In turn, these recent developments in image acquisition have created or stressed bottlenecks in other parts of the pipeline, like sample preparation, image analysis and data management. While the progress in image analysis is stunning due to the advent of automatic segmentation and server‐based annotation tools, several challenges remain. Here we discuss recent trends in volume EM, emerging methods for increasing throughput and implications for sample preparation, image analysis and data management.

NTM-Based Skill-Aware Knowledge Tracing for Conjunctive Skills.

Knowledge tracing (KT) is the task of modelling students' knowledge state based on their historical interactions on intelligent tutoring systems. Existing KT models ignore the relevance among the multiple knowledge concepts of a question and characteristics of online tutoring systems. This paper proposes a neural Turing machine-based skill-aware knowledge tracing (NSKT) for conjunctive skills, which can capture the relevance among the knowledge concepts of a question to model students' knowledge state more accurately and to discover more latent relevance among knowledge concepts effectively. We analyze the characteristics of the three real-world KT datasets in depth. Experiments on real-world datasets show that NSKT outperforms the state-of-the-art deep KT models on the AUC of prediction. This paper explores details of the prediction process of NSKT in modelling students' knowledge state, as well as the relevance of knowledge concepts and conditional influences between exercises.

Fractional Advection Diffusion Models for Radionuclide Migration in Multiple Barriers System of Deep Geological Repository

Based on the multiple barriers concept of deep geological disposal of high-level waste, fractional advection diffusion equations for radionuclide migration in multiple layers low-permeability porous media are proposed in this work. The presented fractional advection diffusion models in terms of different definitions of fractional derivative are analytically addressed via the Laplace integral transform method. This work provides a theoretical foundation for further simulations of radionuclide migration in the multiple barriers system of the high-level waste repository.

One Concept, One Term, Good Practice but How to Achieve? —Improving Facet Values Quality for Samuel Proctor Oral History Collection, Hosted by the University of Florida Digital Collections

Faceted search, also known as dynamic taxonomies, is a popular feature applied to digital collection sites. Appearing as clickable labels, facets facilitate search result refinement and content browsing. To achieve the utmost efficiency, faceted search requires each facet value to represent a single concept–that is, one controlled vocabulary term represents one concept. However, in reality, this status is hard to achieve. An example of this can be seen in the digital collection of Samuel Proctor Oral History Program, a high-profile international resource hosted by the University of Florida Digital Collections. The Topical Subject and Genre terms appear with many vocabulary control issues: the same concept is often expressed with different terms; the same term appears with different spelling variations; and/or outdated terms mingle with more up-to-date ones. Additionally, compound terms that represent multiple concepts prohibit the grouping of content that share individual concepts. In short, a great deal of improvement will be needed to optimize the faceted search. To address these issues, the Digital Support Services department of the George A. Smathers Libraries at the University of Florida launched a pilot metadata remediation project using an out-of-box product – Oxygen XML Editor. This article, in addition to providing one more metadata remediation case study, traces the discussions around metadata quality and analyses the general metadata remediation process. Moreover, this article enriches the discussion of vocabulary control in relation to a core function of digital collection sites–faceted search.