bluuebunny/crossref_metadata_2025 huggingface dataset:
Hodgkin's Disease Involving Bone and Adjacent Soft Tissue in Adults
Authors: Abbondanzo Susan L. , Devaney Kenneth
Published: July 2017

Hodgkin's disease typically presents as peripheral lymphadenopathy, with or without constitutional symptoms. Although skeletal involvement may occur during the course of the disease, bony or adjacent soft tissue masses are extremely unusual, especially as a primary presentation. With this in mind, the authors searched the files of the Armed Forces Institute of Pathology Tumor Registry for all cases that had been diagnosed as Hodgkin's disease in open bone biopsies between the years 1970 to 1992. From a total of 29, we selected 18 that represented all cases with documented clinical records and paraffin-embedded tissue blocks for immunophenotypic analysis. The majority of these predated the use of immunohistochemical markers, and the diagnosis had been made primarily on examination of hematoxylin and eosin stained slides alone. The authors reviewed the hematoxylin and eosin stained slides and performed immunophenotypic analysis for CD45RB, CD20, CD3, CD45RO, kappa and lambda light chains, CD15, CD30, vimentin, cytokeratin, epithelial membrane antigen, factor VIII, and CD57. Seven of 18 cases showed unequivocal morphologic and immunophenotypic findings consistent with Hodgkin's disease of the nonlymphocyte predominance type. There was a male:female ratio of 6:1 and an age range of 21-39 years (median, 30 years; mean 30.4 years). Of these, only two of seven patients had a prior documented history of Hodgkin's disease (stages IB and IIB). After careful morphologic examination and immunophenotypic analysis, the authors found that the remaining 11 cases represented Hodgkin's-like lesions, including atypical lymphoid infiltrates (three cases), large B-cell lymphoma (five cases), anaplastic large-cell lymphoma (one case), large T-cell lymphoma (one case), and metastatic carcinoma with a prominent desmoplastic response (one case). These cases were excluded from this study. This report describes the clinicopathologic features of Hodgkin's disease presenting as bony and adjacent soft tissue masses and confirms the potential difficulty of making this diagnosis, especially in the absence of immunohistochemical markers. Int J Surg Pathol 3(3):147-154, 1996
Paget's Disease of the Bone in Korea
Authors: Hye Rim Park  , Park Yong-Koo , Eil Seong Lee  , Chang Joo Lee
Published: July 2017

Paget's disease of the bone is a process of increased bone remodeling; the primary event is increased resorption (osteoclastic activity) followed by subsequent reactive bone formation (osteoblastic activity). It may be present with wide variations in the clinical and radiographic picture. Paget's disease is well known in Western countries; however, it is extremely rare in Oriental countries, especially in Korea. Recently, the authors treated a case of Paget's disease in a 35-year-old man that involved the pubic bone. Open biopsy revealed irregular bony trabeculae with disconnected lamellar patterns forming characteristic mosaic patterns of cement lines. Immunohistochemical stains for osteocalcin and osteonectin showed strong cytoplasmic positive reactions on osteoblasts and weak reactions on osteocytes and osteoclasts. This immunostaining was also found along the irregular mosaic cement lines. This discrepancy of pattern distribution between normal and pagetic bone may reflect an abnormal binding of these molecules to the pagetic mineral phase of bone. The authors reviewed the clinicopathologic features of seven cases in Korea. Int J Surg Pathol 3(3):175-180, 1996
Eosinophilic Polyserositis Associated With Hepatic Globular Amyloidosis
Authors: Amr Samir S. , Sa'di Abdul Rahman M. , Kiblawi Salim S. , Satti Mohammad B.
Published: July 2017

The authors report a case of 47-year-old man who had repeated episodes of eosinophilic pleural serositis and effusion associated with peripheral blood eosinophilia. He developed an epigastric mass 3 years after his initial illness. Laparotomy revealed a thickened, shrunken omentum adherent to the parietal peritoneum. Histologically, the omentum was heavily infiltrated with eosinophils. An open liver biopsy showed globular amyloidosis, a rare variant of amyloid with only 20 cases reported. Comprehensive examination of the patient ruled out parasitic, autoimmune, or neoplastic diseases. No features of hypereosinophilic syndrome or eosinophilic gastroenteritis were detected. The authors discuss this case with its unique association of these two unusual entities with special reference to the differential diagnosis of globular amyloid. Int J Surg Pathol 3(3):201-206, 1996
Gynandroblastoma of the Ovary Review of Literature and Report of a Case
Authors: Guo Li-na , Liu Tong-hua
Published: July 2017

A rare case of gynandroblastoma of the right ovary with a typical morphologic appearance in a 10-year-old girl is reported. Clinically, there were both feminizing and masculinizing symptoms with elevated estradiol and testosterone levels. The pathomorphology, immunohistochemistry, and ultrastructural features of this tumor are described, and the reported cases in the literature are reviewed.
Heterotopic Pancreas Masquerading as Duplication Cyst of the Stomach A Case Report
Authors: Cheung Florence M. F. , Leong Heng Tat
Published: July 2017

Heterotopic pancreas is not an uncommon finding in surgical or autopsy specimens. It may be asymptomatic or produce mechanical obstruction, surface ulceration, and other rarer complications. Cystic dilation of pancreatic ducts within heterotopic pancreas has been reported. This case report gives the clinicopathologic findings of heterotopic pancreas in a 37-year-old woman. It illustrates how cystic dilation of the pancreatic duct in heterotopic pancreas may masquerade as gastric duplication.
p53 Immunoexpression in Carcinomas Arising in Pleomorphic Adenoma
Authors: Rosa Joaninha Costa , Fonseca Isabel , Félix Ana , Soares Jorge
Published: July 2017

p53 protein immunoexpression was evaluated in 17 invasive carcinomas arising in pleomorphic adenoma and correlated with the histologic type and tumor grade. Ten tumors had one malignant histologic component: adenocarcinoma NOS (not otherwise specified) (five), undifferentiated carcinoma (two), malignant myoepithelioma (one), epithelial-myoepithelial carcinoma (one), and malignant oncocytoma (one). In the remaining cases, there was a coexistence of areas of adenocarcinoma (seven), adenosquamous (two), epithelial-myoepithelial (two), adenoid cystic (two), undifferentiated carcinoma (one), and low-grade polymorphous adenocarcinoma (one). p53 positivity was found within adenocarcinoma NOS (three) and adenosquamous carcinoma (two) components of four cases. Tumor areas showing low-grade histology, either mono- or bidifferentiated carcinomas, were always negative in this series, in keeping with previous observations on primary neoplasms of the same histologic type. The benign component of the neoplasms was also found to be consistently negative. The results point to a preferential association of the p53 gene dysfunction and its protein accumulation with the malignant transformation of pleomorphic adenomas into salivary adenocarcinomas with features of high-grade malignancy.
Inflammatory Pseudotumor of the Spleen: A Case Report and Review of the Literature
Authors: Seijo Laura , Unger Pamela D. , Strauchen James A.
Published: July 2017

The authors report the case of an inflammatory pseudotumor found incidentally in the spleen of a 53-year-old woman who had undergone splenectomy for the treatment of immune thrombocytopenic purpura. An ultrasound performed 2 months prior to the operation showed a spleen of normal size with no appreciable masses; however, gross examination of morselized splenic tissue removed by laparoscopic splenectomy revealed two small, well-circumscribed, white–tan nodules measuring 0.8 and 1.5 cm admixed with otherwise normal-appearing splenic parenchyma. Microscopically, these mass lesions were inflammatory pseudotumors composed of a variable mixture of polyclonal populations of mature lymphocytes and plasma cells with eosinophils, neutrophils, histiocytes, and fibrous tissue. This case represents a rare splenic lesion in our review of the world literature. Inflammatory pseudotumors of the spleen are usually solitary, often asymptomatic, rarely diagnosed prior to surgical removal, and characterized by a varied but uniformly benign histologic appearance. Recognition of this entity by clinicians and pathologists is important in definitively ruling out malignancy of the spleen.
The Schoolwide Cluster Grouping Model
Authors: Brulles Dina , Winebrenner Susan
Published: July 2017

Schools today are experiencing dramatic changes in how they serve gifted students. Gifted programs that have prevailed for years are disappearing. In response, an increasing number of schools are turning to the Schoolwide Cluster Grouping Model (SCGM) to serve their gifted students. When implemented well, the SCGM represents one viable solution for providing effective and consistent gifted services within present budget constraints. Perceptions and practices that largely ignore the learning needs of gifted students carry heavy costs to society. Schools lose students to alternative programs, students lose opportunities for academic growth, and families lose faith in the education system. Instead, the potential of all students needs to be nurtured and developed. Current economic and political realities provide new opportunities to reexamine the ways we can deliver comprehensive and sustainable services for the most capable learners. The SCGM can achieve those goals in a way that is equitable and effective for all students by embedding gifted education services into the school system and increasing the possibility that the inherent needs of all students are understood and embraced. Focusing schools’ attention on the needs of all students can enfranchise gifted students and demonstrate continued support for gifted education in the 21st century.
How We Formed a Parent Advocacy Group and What We’ve Learned in the Process
Authors: Matthews Michael S. , Georgiades Stephanie D. , Smith Linda F.
Published: July 2017

Advocacy is of central importance in the education of students with gifts and talents due to the great variation in legislated policies protecting the provision of educational services for these learners. The authors present here a descriptive study based on their experiences founding a successful parent advocacy organization in one large school district in Florida. The Gifted Advocacy Council of Hillsborough, Inc. grew to over 100 members within its first year, and it has become an important contributor to the local educational scene during its 3 years in existence. The authors’ experiences support the value of developing a collaborative and proactive approach that is inclusive of teachers and administrators, rather than one that is adversarial or primarily reactive in nature. Findings highlight the importance of an effective web presence in building an advocacy organization, the benefits of consistency in key leadership roles within the organization, the relevance of the diverse professional skills that our members bring to the organization, and other selected points that the authors believe have been keys to their organization’s success. The authors hope that their experiences may inform others who wish to found similar organizations to support the education of students with gifts and talents in their local schools.
Social/Emotional Needs: Gifted Sensitivity to Criticism
Authors: Cross Tracy , Mendaglio Sal
Published: July 2017

Welcome to the third column focusing on the social and emotional needs of gifted students. As I indicated in the first column, I have asked a friend, Dr. Sal Mendaglio from the University of Calgary, to share some of his thoughts and experiences counseling gifted students. Sal has been working on the topic of sensitivity for some time. Having talked at length with him about his ideas, I felt that this column would be an ideal vehicle for him to put forth his ideas. Enjoy.
Free vibration of a light sandwich beam accounting for ambient air
Authors: Chanthanumataporn Saharat , Watanabe Naoyuki
Published: July 2017

Sandwich structures consisting two thin faces and a thick core are increasing in demand, corresponding to the challenge to minimize weight and improve load carrying. In order to describe the free vibration of these kinds of structures, several accurate models have been proposed; however, the damping effect of ambient air, influential for lightweight structures, is always neglected. This paper originally presents a finite element formulation to study free vibration of a sandwich beam coupling with ambient air. The sandwich beam was modeled based on the sandwich theory, where the shear deformation of the sandwich core was taken into account. The thickness of the sandwich beam was included into the mesh model. The accuracy of the formulation was verified by comparing the obtained results with other analytical solutions and experimental results. The parametric studies on the effect of shear deformation and ambient air were conducted and the results indicate the necessity of taking into account these effects.
Robust stability and stabilization of uncertain fractional order systems subject to input saturation
Authors: Alaviyan Shahri Esmat Sadat , Alfi Alireza , Tenreiro Machado JA
Published: July 2017

This paper studies the stability and the stabilization for a class of uncertain fractional order (FO) systems subject to input saturation. The Lipschitz condition and the Gronwall–Bellman lemma are adopted and sufficient conditions are derived to stabilize systems by designing a state feedback controller. Numerical examples demonstrate the effectiveness of the proposed method.
New Media, New Relationship to Participation? A Closer Look at Youth News Repertoires and Political Participation
Authors: Edgerly Stephanie , Vraga Emily K. , Bode Leticia , Thorson Kjerstin , Thorson Esther
Published: July 2017

This study extends past research on the relationship between news use and participation by examining how youth combine news exposure across an array of media devices, sources, and services. Results from a national survey of U.S. youth ages 12 to 17 reveal four distinct news repertoires. We find that half of youth respondents are news avoiders who exhibit the lowest levels of participation. The other half of youth respondents are characterized by one of three patterns of news use, each distinct in how they seek out (or avoid) using new media platforms and sources for news, and in their levels of participation.
Shedding Light on Stakeholder Power in a Regulated Market: A Study of Variation in Electric Utilities’ Climate Change Disclosures
Authors: Kraft Brandon
Published: July 2017

Extant theory posits that corporations disclose environmental information to maintain economic and legitimacy resources. Frequently, studies find that corporations prioritize the maintenance of economic resources when formulating their disclosure strategies. These studies generally assume competitive markets. Many polluting industries, however, do not operate in competitive markets. Accordingly, current assumptions of competitiveness may obscure potential explanations of disclosure. To remedy this oversight, I investigate how utilities vary their climate disclosures in response to regulatory, movement, and shareholder pressures within more monopolistic and oligopolistic markets. By using a mixed-effects model, I find that embeddedness in regulatory processes and movement targeting correlate to an increase in substantive disclosures. Interestingly, within monopolistic electricity markets, shareholder pressures do not lead to variation in substantiveness. As markets become more competitive, I find that shareholders resume their position of power. I argue these findings demonstrate that competition influences corporations’ perceptions of stakeholder power–implicating disclosure strategy.
Lock-up characteristics of floating ring seals considering rotor whirling motion
Authors: Xia Peng , Liu Zhan-sheng , Yan Jia-jia , Zhang Guang-hui
Published: July 2017

This paper presents a lock-up condition with rotor whirling motion to predict the lock-up area for floating ring seals in liquid turbopumps. To calculate the hydrodynamic forces with arbitrary rotor motion, bulk flow model is modified with explicitly considering the squeeze velocity and temporal inertia. Finite element method is implemented to solve the transient nonlinear model. The effect of lock-up position on leakage and rotordynamic coefficients of floating ring seals is studied and shows insensitivity to eccentricity within moderate eccentric area (<0.5), which indicates that predicting lock-up area with the lock-up condition is feasible for application. With circular trajectory of rotors, the effects of rotor whirling radius and friction force on lock-up area are investigated. The results show that the lock-up area shrinks toward rotor whirling center, with the increase in the rotor whirling radius and decrease in the friction force. Further, a coupled method of rotor trajectory and floating ring seal lock-up area is presented to consider the interaction between rotors and floating ring seals. The results show that the effect of the interaction on the lock-up area is almost negligible, as lock-up position of floating ring seals has little effect on rotor trajectory. In addition, the effect of the seal configuration on the lock-up area is studied.
Intergroup contact and helping: How quality contact and empathy shape outgroup helping
Authors: Johnston Brian M. , Glasford Demis E.
Published: July 2017

Do previous intergroup contact experiences predispose a person to be more inclined to help outgroup members? The present work explores whether the quality of one’s contact experiences with an outgroup is associated with outgroup helping. Across two studies, we examine the relation between intergroup contact (quantity and quality of contact), empathy (Study 1 and Study 2), anxiety (Study 2), and helping intentions across a variety of dimensions and behaviors (Study 1 and Study 2), as well as level of commitment to helping outgroup members (Study 2). Across both studies, quality, more than quantity, contact was associated with increases in outgroup helping intentions, which was explained (i.e., mediated) by empathy. In addition, quality contact was also associated with increased commitment to help an outgroup, which was also explained by empathy. Implications for intergroup helping and emotions are discussed.
Experimental study on the seismic behavior of steel-reinforced ultra-high-strength concrete frame joints with cyclic loads
Authors: Liu Wei , Jia Jinqing
Published: July 2017

A research program on the seismic behavior of steel-reinforced ultra-high-strength concrete exterior joints is conducted herein by testing 11 specimens under a reversed cyclic loading profile. This study analyzes the testing results in terms of the load–displacement relationship, ductility, energy dissipation capacity, strength and stiffness degradations, steel panel strain, and confinement in the specimen joints. The axial compression and stirrup volumetric ratios are two significant parameters dominating the shear behavior of the steel-reinforced ultra-high-strength concrete frame exterior joints. The effect of the axial compression ratio on the shear capacity of the steel-reinforced ultra-high-strength concrete frame exterior joints characterized by a dividing point is also proposed. Furthermore, a design formula for the shear strength of the joint core area is derived using the strain analysis method with the shear model that considers the inner concrete compression strut, outer concrete compression strut, steel web panel shear mechanisms, and stirrup confinement mechanisms. The formula is verified by the experiment results.
Computation of the Influence Lines for Lateral Load Distribution in Straight, Skew and Horizontally Curved Bridges
Authors: Chang Shih Toh
Published: July 2017

This paper not only deals with the rigid-diaphragm method criteria for computing the lateral load distribution in straight, skew and horizontally curved bridges, but also presents formulae for calculating specified girder influence lines for lateral load distribution. As diaphragms are considered to be supports to main girders with the properties of bending and torsional springs, the required influence lines expressions for lateral load distributions in straight, skew and horizontally curved bridges may be attained. An illustrative example is given of the rigid diaphragm method by computing the influence lines for lateral load distribution for horizontally curved bridges.
Uncovering young children’s transformative digital game play through the exploration of three-year-old children’s cases
Authors: Huh Youn Jung
Published: July 2017

In contrast to studies focusing on digital games as learning tools, this study shows how young children use digital games as a means of facilitating spontaneous play in their everyday lives. This article highlights how 4 three-year-old children’s play with digital games revealed their ability to create new forms of play by mixing their digital game play and other play in real life. In addition, this study shows various examples of young children breaking game boundaries (e.g. rule-breaking; using virtual space as a source for their spontaneous play; navigating between virtual and physical space for their play) in their digital game playing. This finding suggests that digital games do not entirely change or displace other practices in early childhood, but young children’s digital game play is very closely related to their spontaneous play as it occurs in their everyday lives. Young children are agentic and capable users of digital technologies, incorporating the digital world for their own purposes.
Playing with place in early childhood: An analysis of dark emotion and materiality in children’s play
Authors: Procter Lisa , Hackett Abigail
Published: July 2017

In this article, the authors bring together the cultural studies of emotion with theories that foreground the agency of place and objects in order to analyse the entanglement of place, children and emotion (particularly fear) in children’s play encounters. When children, objects and places come into play with each other, intensities and emotions emerge. Through an analysis of examples from two ethnographic studies in which play encounters between children and place seem to evoke fear, the authors explore the potentialities of what is evoked. Fear is bounded in place and experienced materially and bodily. As fear becomes entangled in the materiality of place and bodies, emotions work to characterise and categorise bodies (human and non-human) in ways that connect to anthropocentric and colonial metanarratives of animal/human and victim/aggressor. The authors make the case that the cultural studies of emotion can offer a means through which it is possible to connect the micro and the macro, working at these different scales in order to consider the political implications of reconceptualising play encounters through new materialism.
Avoidance of the real and anxiety about the unreal: Attachment style and video-gaming
Authors: Coulson Mark , Oskis Andrea , Gould Rebecca L
Published: July 2017

In this article, the authors discuss the light and dark side of attachments and attachment style in physical and digital worlds. They argue that many games offer opportunities for the generation of new and meaningful attachments to both physical and digital others. They discuss two ‘fundamental attachment errors’ and show how these can lead to both ‘light’ outcomes, in terms of opportunities to learn more secure attachment patterns, and ‘dark’ outcomes, where existing dysfunctional behaviours become more pronounced. The authors argue that the avatars which children adopt online have important consequences for their psychosocial development, and that these are mediated through the degree to which the real self is differentiated from the avatar. It is proposed that attachment is a key force in understanding play, and that studying its manifestations and effects in digital playscapes may contribute to understanding the effects of life online, and how insecure attachments may become secure.
The growth of cost-effectiveness assessment in environmental health legislation
Authors: Smalley T.
Published: July 2017

Current controversy over the Government's intentions to introduce a cost- benefit philosophy into environmental decision making should be put into perspective. The legislative requirement for comparing costs with effectiveness is not new. There is, however, an increasing tendency for such assessments which will necessitate a greater attention to research into environmental health outcomes.
Epidemiology training for primary health care: the use of computer-assisted distance learning
Authors: Macfarlane Sarah B. , Cuevas Luis E. , Moody John B. , Russell Wanda B. , Schlecht Bernard J.
Published: July 2017

The Liverpool Epidemiology Programme, based in the Liverpool School of Tropical Medicine, has designed a series of computer-based modules for use in distance learning. The purpose of this paper is to highlight the role of computers in training health workers in epidemiology in developing countries. The aim of the modules is to provide health workers with solutions to problems which they face in their everyday work. The modules are written in hypertext software for IBM compatible machines and interact with the epidemiological software Epi Info. Four modules are described: LEP-Nut which deals with nutritional surveillance, LEP-Ref which looks at the role of epidemiology within a refugee health care programme, LEP-Surv dealing with health surveillance and LEP-Rap which introduces the concept of rapid appraisal. They are also easily distributed, particularly with the development of the Internet.

The modules are carefully evaluated before and after distribution. Issues related to their evaluation and subsequent revision are discussed, in particular is the content important, adequate, communicated and useful? A major advantage of computer-based learning materials is that they can be easily updated with new advancements of knowledge and experience from the field.
The duality of social self-categorization in consumption
Authors: Totaro Paolo , Marinho Thais Alves
Published: July 2017

“Consumer culture” theories frequently claim that people use symbols of consumption to socially self-categorize and satisfy their needs for assimilation or differentiation. Through two empirical quantitative studies, we argue that self-categorization operates according to a duality overlooked by these theories. On one hand, self-categorization can be understood as the assimilation of the “I” into a normatively well-characterized group, a self-categorization that we define as “ontological” in this article. On the other hand, it can be understood as the identification with socially standardized and impersonal models, a self-categorization that we term “formal.” In the two studies, we investigated whether the psychologically perceived distance between the in-group and out-group (metacontrast) is greater in ontological than in formal self-categorization and, second, whether these two forms of self-categorizations operate independently (not correlated) in consumption. The results support the two hypotheses. However, further studies should be developed in order to give a more definitive character to the theory. If the findings of this work were to be confirmed by other ecological contexts and sampling techniques, there might be consequences for “self-brand connection” analyses and in general for consumption studies where social self-categorization theory can be applied.
Cultural intelligence and job performance
Authors: Jyoti Jeevan , Kour Sumeet
Published: July 2017

The study generalizes the concept of cultural intelligence (CQ) as a key competency in Indian context due to its diverse cultures. Cultural intelligence is a capability, which increases the manager’s ability to effectively interact with people belonging to other cultures. The purpose of the study is to examine the mediating role of cross-cultural adaptability (CCA) in between CQ and the job performance relationship and the moderating role played by work experience and language proficiency in between CQ and CCA relationship. The data for the study have been collected from 342 managers of nationalized banks in Jammu and Kashmir (India). Exploratory factor analysis and confirmatory factor analysis have been conducted to explore and validate the factor of different constructs. Hypotheses have been tested through structural equation modeling. The study reveals that CCA mediates the relationship between CQ and job performance. Further, previous work experience and language ability act as moderators between the CQ and CCA relationship. Further, moderated mediation analysis also confirmed significant indirect effect. Implications and limitations of the study have also been discussed.
Modelling and analysing correlated non-normal data
Authors: Lee Youngjo , Nelder John A
Published: July 2017

We introduce a model class that includes many types of correlation structures for non-Gaussian models. We then show how to check the underlying model assumptions to discriminate between different correlation patterns and demonstrate how to select suitable models. Strawberry data are used to discuss the choice between fixed- and random-effect models for the fertility effect in agricultural experiments. Prostate-cancer data are used to demonstrate the method applied to the analysis of longitudinal studies and Scottish lip-cancer data to illustrate an application to spatial statistics.
Using cross-classified multivariate mixed response models with application to life history traits in great tits (Parus major)
Authors: Browne William J , McCleery Robin H , Sheldon Ben C , Pettifor Richard A
Published: July 2017

Longitudinal observations on known individuals are an important source of data with which to test evolutionary theory within natural populations, in particular, the evolution and maintenance of life-history traits. In this paper, we concentrate on the reproductive behaviour and survival of a small passerine bird, the great tit ( Parus major). The dataset we consider is taken from the long-term study of great tits in Wytham Woods in Oxfordshire. The models we consider are designed to relate variation in several phenotypic response variables that are linked to evolutionary fitness, alongside the correlations between them, to both general environmental and individual-specific factors. We fit multivariate cross-classified random effects models using a Markov chain Monte Carlo (MCMC) estimation algorithm described in the paper. Our results show for which traits variability is influenced by environmental factors and for which traits individual bird factors are more important. The partitioning of correlations is particularly illuminating, producing some pairs of ‘antagonistic’ correlations which are biologically meaningful.
Statistical modelling using product partition models
Authors: Jordan Claire , Livingstone Vicki , Barry Daniel
Published: July 2017

Product partition models (PPMs) allow us to partition a set of objects into k sets. PPMs are a special case of Bayesian Partition models. They use partially exchangeable priors where given a partition ρ of the objects into k sets, the objects in the same set are exchangeable and the objects belonging to distinct sets are independent. PPMs specify prior probabilities for a random partition and update these into posterior distributions of the same form. They provide a convenient way of allowing the data to weight the partitions likely to hold. Posterior estimates of the parameter of interest are obtained by conditioning on the partition and averaging over all generated partitions. Markov chain Monte Carlo (MCMC) techniques are used to generate partitions of the data. PPMs can be applied to many diverse estimation problems and in this paper we outline two areas where they are useful.
Teaching a Psychology-Based Study Abroad Pre-Departure Course
Authors: Goldstein Susan B.
Published: July 2017

In response to recent research indicating that the benefits of study abroad are significantly enhanced by pre-departure training, tertiary institutions are increasingly offering pre-departure courses to students preparing to study abroad. Teachers of psychology are well positioned to contribute to such courses in that a large number of psychological concepts are relevant to the student sojourner experience and the goals of pre-departure training. In this article I present the goals, format, content, and assessment of a psychology-based study abroad pre-departure course, describe relevant psychological concepts, and provide suggestions for psychology instructors interested in developing and teaching such courses.
A Standardized Framework for Transplant-Specific Competencies for Dietitians
Authors: Pieloch Daniel , Friedman Golnaz G. , DiCecco Sara , Ulerich Linda , Beer Stacey , Hasse Jeanette
Published: July 2017

Dietitians have extensive training and are considered the experts in medical nutrition therapy (MNT). Although dietitian competencies for MNT are well established, competencies that account for the expanded roles of dietitians working in transplantation have not been developed. These expanded roles require a better understanding of transplant processes, regulations, and even the business side of transplant, novel concepts to most dietitians. Therefore, we proposed a standardized framework of transplant-specific competencies for dietitians practicing in transplantation. These competencies can help improve and standardize initial and ongoing training for transplant dietitians moving forward, ultimately leading to improved patient care for transplant candidates, recipients, and donors.
Conflict and Candidate Selection: Game Framing Voter Choice
Authors: Cox Han Lori , Calfano Brian Robert
Published: July 2017

Political campaigns are often likened to a game typified by conflict. We consider whether using a conflict frame visually emphasizing the contested aspect of partisanship affects candidate support in the 2016 presidential election. Using a nationwide survey experiment ( N = 975) that randomly assigns participants to different visual frames depicting politics as conflictual or process-based, we find that participants exposed to the conflict frame show significantly higher odds of supporting Donald Trump and Bernie Sanders, while rejecting Hillary Clinton. The conflicting frame also increases self-reported participant anger, which decomposition analysis shows increases support for Trump and Sanders while decreasing it for Clinton (and that we offer as a preliminary finding). Avenues for future research are then considered.
Nicolaus Listenius’s Musica (1537) and the Development of Music Pedagogy
Authors: Honea Sion M. (Ted)
Published: July 2017

Nicolaus Listenius’s Musica (1537) proved to be one of the two most successful music textbooks in the Lutheran Latin Schools of the sixteenth century, issued in at least forty-six editions and surviving in use into the next century. Yet, a casual inspection of the book today does not readily yield to modern expectations of a successful pedagogical text; indeed, there has never been any thorough analysis of the book to determine its merits and defects and so the causes of its popularity. The present analysis demonstrates that the Musica utilizes a variety of influential practices—medieval, humanist, and Lutheran—combined with an innovative new concept in music pedagogy in order to account for its success. It also reveals certain weaknesses and flaws in the book but argues that these were mostly overcome by the intended practice of guidance from the instructor in actual classroom use. The book’s method presents a difficulty for understanding today because of our modern assumptions about proper pedagogy, but an analysis of its method is beneficial for making more conscious those assumptions and advances in current practice.
Fault diagnosis for rectifier transformers of high-frequency power supplies based on current waveform feature extraction
Authors: Liu Yufang , Jiang Bin , Yi Hui
Published: July 2017

Rectifier transformers are key components of high-frequency power supplies; their waveforms play an important role in diagnosing faults of high-frequency power supplies. Typically, the integral value of the current waveform is analyzed to diagnose rectifier transformer faults. However, the waveforms of currents are greatly influenced by the load, which results in serious fault-coupling problems. Generally, conventional methods cannot accurately locate faults, and they have high error rates. In this study, primary and secondary waveform currents were analyzed to extract fault feature data. The extracted data were used to train least-square support vector machines to build fault classifiers, thus realizing the fault detection and isolating the rectifier transformer. The proposed method was applied to actual waveform data from the Baosteel power plant; it performed satisfactorily.
Optimal design of microvascular networks based on non-dominated sorting genetic algorithm II and fluid simulation
Authors: Li Peng , Liu Yuan , Zou Tian , Huang Jinyong
Published: July 2017

The non-dominated sorting genetic algorithm II is used to design the microvascular networks embedded in self-healing polymeric materials. And the fluid simulation software Fluent is used to validate the optimization result obtained by non-dominated sorting genetic algorithm II. Two objective functions are considered, namely, the void volume fraction and flow efficiency. A total of 222 solutions are obtained, and the head loss is in the range of (3.88 × 10−7 m, 2.36 × 10−6 m), whereas the void volume fraction is in the range of (4.39%, 5.12%). The simulation velocities are close to optimization velocities. The average error rate of selected solutions (a), (b), and (c) is 22.6%, 26.4%, and 35.2%, respectively.
Mechanical and failure characteristics of rock-like material with multiple crossed joint sets under uniaxial compression
Authors: Liu Jiaming , Sun Shaorui , Yue Ling , Wei Jihong , Wu Jimin
Published: July 2017

The strength and deformation of rock masses transected by persistent joints are controlled by the fracture network. In this work, bonded particle model modeled by particle flow code in three dimensions was used to study the effect of geometry parameters on the strength and behavior of jointed rock masses under uniaxial compression. The effect of the number of crossed joint sets, joint orientation, and joint spacing on the uniaxial compressive strength was investigated, and this article presents the results of the numerical simulations. Rigorous validation process had done before the numerical experiments. Four types of blocks (Series A, B, C, and D) with different numbers of joint sets were considered in this article. Then, a sensitivity study is undertaken to investigate the effects of joint set numbers and joint geometry configuration on the failure mode, unconfined compressive strength, and Young’s modulus of jointed rock mass. The interaction among the crossed joint sets was found to have marked effects on the mechanical properties and failure modes. A study about the effects of joint spacing on the failure modes, unconfined compressive strength, and Young’s modulus was also conducted. Joint spacing was found to have no significant effect on the failure modes of jointed rock masses in a certain range. It is also shown that the range and variance of unconfined compressive strength are affected principally by joint set numbers and decreased slightly with the decrease in joint spacing. The effect of crossed joint sets on the stress field was carried out. Stress concentration was found to be the reason for relatively lower strength of blocks with crossed joint sets compared to the block with the same weakest single joint set. The result in this article is of great help to reveal the mechanism of damage and fracture of jointed rocks under uniaxial compression.
Behavior decision model for park-and-ride facilities utilization
Authors: Zhao Xing , Li Yan , Xia Han
Published: July 2017

With the accelerated process of urbanization and traffic development, especially the urban rail transit system’s great improvement, Park-and-Ride provides an effective mode for trips between suburbs and downtown. In this research, online and field survey is carried out on the use of Park-and-Ride facilities. Analyses are conducted on personal attributes containing gender, age, and income; the travel characteristics such as driving time during departing from origin to parking lot, parking duration, transfer mode, transfer walking time and waiting time, and transfer times; Park-and-Ride users’ intentions concerned walking time, waiting time, and time looking for parking space; and reasons for Park-and-Ride trip mode not be chosen. On the basis of decomposition for travel procedures, impedance models for different trip modes including public transport, private car, and Park-and-Ride are built and then the multinomial logit model for choice probability of trip modes and Park-and-Ride demand model is established. After further analysis on the survey data, calibrations and tests for the impedance models above are performed. Finally, a case is shown to demonstrate application of the proposed model.
Study on control performance of pilot high-speed switching valve
Authors: Wang Shuang , Zhang Bin , Zhong Qi , Yang Huayong
Published: July 2017

High-speed switching valves have been widely studied as pilot valves because of their advantages on easy digital control, low power loss, and non-sensitive to oil pollution. However, there are still lots of difficulties and problems between discrete flow and response time. In this article, two high-speed switching valves are used to pilot a three-way main stage valve. By adjusting the duty ratio of pulse width modulation control signals, the main stage can output continuous flow and pressure. The control performances of two pilot stage methods, which are high-speed switching valve and proportional valve, are compared through the theoretical analysis and the dynamic simulation. It is found that three factors directly affect the response time of the main stage, which are the control signal, the operating frequency of high-speed switching valve, and the pressure of the control chamber. The main valve can achieve better performance if optimized parameters are applied.
Establishing sustainable design and development for plastic mold under product service system
Authors: Huang Yu-Chen , Tu Jui-Che , Kuo Kuo-Pin
Published: July 2017

Face the energy recovery and environmental concerns and policy, the plastic molds design and develop have to focus on the issues of the lead-free, non-toxic, recyclable, re-manufactured, and integrate environmental protection and technology etc. Hence, this study adopts the product service system to integrate product and service to meet consumer demands. Furthermore, this system concept combines the procedures of design, manufacture, and distribution. This procedure of service supply will improve product life cycle for reduced environmental impact, satisfy the concepts of the reuse and remanufacturing of raw materials, reduce production waste, and further achieve the purpose of dematerialization. The purpose of this research is to construct the impact factors of the sustainable design and development of plastic molds on product service. This study integrates expert interviews and the literature review to list the principles of the sustainable design and development of plastic molds; the results of this study sum up 6 capital dimensions and 30 evaluation indicators, which are analyzed through the analytical hierarchy process, and add the plastic mold application process to provide complete products and services that improve the sustainable design, development process, and evaluation criteria of plastic molds.
A study of nonlinear coupling dynamic characteristics of the cold rolling mill system under different rolling parameters
Authors: Xu Hai , Cui Ling-Li , Shang De-Guang
Published: July 2017

The dynamic characteristics of the mill and the drive system are mutually coupled and affected closed-loop system. However, most research has considered only the vibration of the drive system or the vibration of the mill to determine the cause of the accident in the equipment condition monitoring and fault diagnosis process. Condition monitoring and fault diagnosis based on this type of approach can lead to misdiagnosis or missed diagnosis in determining faults in actual systems. So, in this study, a dynamic model of the coupling between a mill and its drive system was developed to study the interaction of the mill and the drive system with the goal of increasing the accuracy of diagnostic methods and to improve the quality of the rolled material. A nonlinear coupling dynamic model was formulated to represent the relation between the gearbox vibration amplitude and various time-varying parameters to study the effects of various parameters on the drive system vibration characteristic under unsteady lubrication. Simulations results showed that increasing the strip speed, the input strip thickness, or the output strip thickness or decreasing the lubricating oil temperature or the roller radius caused the vibration amplitude of the drive system to increase. The vibration frequency caused by variations in the strip inlet or outlet thickness can be transmitted to the drive system, and gear meshing frequency of the gearbox can be transmitted to the mill. Test data from an actual cold rolling mill verified the accuracy of the model. The model was shown to be capable of simulating the mutually coupled and affected mechanism between a mill and its drive system.
Design of a climbing robot platform with protection device
Authors: Altaf Meteb , Ahmad Eball , Xu Yaru , Liu Rong , Li Yang , Na Han
Published: July 2017

In this article, a new wall-climbing robot platform with protection devices for city inspection is developed. After an overall structural introduction, the main protection devices of the robot are described in detail, including the support frame, the Ethylene Vinyl Acetate (EVA) shell, and the airbag. The support frame plays the roles of chassis and protection framework, so integrative and lightweight design is required. The EVA shell covers the support frame, and it protects the robot from overturn falling down from the wall. The airbag is designed both for sealing and protection. The mechanical model of the airbag is established based on the engineering thermodynamics theory and is used for force analysis when robot falls down on the ground. In addition, two-level distributed control system is designed to achieve the control of fan speed, straight moving, differential steering, position servo, and video transmission. To verify the feasibility of the climbing robot, many experiments are conducted, that is, experiments of movement, load capacity, adaptability to the wall surfaces, endurance, camera, sensor, and antithrow. The results show that the actual working performance of the climbing robot is favorable, thus providing a train of thought and inspiration for the antithrow design of climbing robot.
Is Psychology Moving in the Right Direction? An Analysis of the Evidentiary Value Movement
Authors: Hamlin J. Kiley
Published: July 2017

The following article considers whether psychology is moving in the right direction by exploring the evidentiary value movement. Although the author considers the movement to be a net positive, she discusses concerns regarding the scope and tone of the discussions to date. She encourages the movement to consider heretofore underrepresented subfields and to reduce the use of negative tone.