bluuebunny/crossref_metadata_2025 huggingface dataset:
Integrated Scheduling of Rail-Mounted Gantry Cranes, Internal Trucks and Reach Stackers in Railway Operation Area of Container Terminal
Authors: Yan Baicheng , Zhu Xiaoning , Wang Li , Chang Yimei
Published: July 2018

In this paper, the integrated scheduling of handling equipment at the railway handling area in container terminals is studied, where rail-mounted gantry cranes, internal trucks, and reach stackers are deployed. In the course of the handling operation, loading and unloading containers are handled simultaneously. The handling process is first studied and some scheduling schemes are put forward. Based on the analysis, the problem is formulated as a mixed-integer programming model, with the objectives of minimizing the makespan and the total waiting time of all equipment. Then, to solve the problem, a genetic algorithm is employed, where the first available machine rule is applied in the selection of trucks and reach stackers. Sets of numerical experiments are conducted to verify the effect of the proposed algorithm. Based on the results of experiments, some key indicators are calculated and the effects of different equipment configuration schemes are studied.
Laboratory Performance of Asphalt Mixtures Containing Re-Refined Engine Oil Bottoms Modified Asphalt Binders
Authors: You Taesun , Shi Yucheng , Mohammad Louay N. , Cooper Samuel B.
Published: July 2018

The increasing use of hardened oxidized asphalt binders in recycling materials such as recycled asphalt pavement (RAP) and recycled asphalt shingles (RAS) has increased the need to use re-refined engine oil bottoms (REOB) as a recycling agent. However, conflicting conclusions on the effect of REOB on mixture performance have been reported in the literature. The objective of this study was to characterize the laboratory performance of conventional asphalt mixtures and mixtures containing REOB modified asphalt binders. Four 12.5-mm asphalt mixtures, containing 0%, 5%, 10%, and 15% REOB modified asphalt binders, were designed to meet Superpave design criteria. A suite of laboratory tests was utilized to ascertain the mechanistic behavior of the mixtures considered. Mechanistic tests were performed to evaluate the high-, intermediate-, and low-temperature properties and moisture susceptibilities of laboratory produced mixtures using the Hamburg Loaded-Wheel Tester (LWT), the Semi-Circular Bending (SCB) test, and the Thermal Stress Restrained Specimen (TSRST), respectively. Results showed that the addition of REOB did not adversely affect the rutting and moisture susceptibility of the mixtures. Similar low-temperature mixture performance was observed with an REOB dosage up to 10%, while a mixture with 15% REOB showed significantly reduced low-temperature cracking performance. A decreasing trend in SCB Jc with an increasing REOB content was observed indicating a negative effect of REOB on intermediate-temperature cracking resistance.
Calibrating the Mechanistic–Empirical Pavement Design Guide Rutting Models using Accelerated Pavement Testing
Authors: Tian Yu , Lee Jusang , Nantung Tommy , Haddock John E.
Published: July 2018

This paper presents a new method for the local calibration of the rutting models in the Mechanistic–Empirical Pavement Design Guide (MEPDG) for Indiana’s pavements using accelerated pavement testing (APT). The study focused on the verification, calibration, and validation of the rutting models in the MEPDG using both field and APT sections. In this study, a new calibration methodology was developed that uses layer rutting distribution. Also, a procedure was developed to provide the most realistic simulations of APT conditions (climate, traffic, and aging) using virtual weather station data generation, a special traffic configuration, and falling weight deflectometer evaluation. The primary benefits of APT are that it uses test sections with high distress levels and low measurement errors and it provides findings about the contributions of each layer to the total rut depth (i.e., pavement surface rutting). The accuracy of the MEPDG’s rutting prediction models was improved significantly following implementation of the new calibration process. The sum of squared errors (SSE) was reduced by 73% and the standard error of estimates was reduced by 38%. No significant differences were found between the predicted and measured asphalt layer, subgrade, and total rut depths at the 95% confidence level. When compared with the conventional calibration method, which uses the total rut depth without knowing the rut depth of each layer, the proposed method provides more reliable predictions for both asphalt mixture and subgrade rutting, most especially for the latter. The bias and SSE of the predicted subgrade rutting were improved by 46% and 62%, respectively.
What Shapes Uneven Access to Urban Amenities? Thick Injustice and the Legacy of Racial Discrimination in Denver’s Parks
Authors: Rigolon Alessandro , Németh Jeremy
Published: July 2018

Like other urban amenities, parks are unevenly distributed throughout cities, with advantaged groups enjoying better access to better parks than more disadvantaged residents. Although such inequities are well documented, we know less about the mechanisms that shape them. We conduct a case study in Denver that includes a GIS analysis and interviews with local planners and historians. We find that while park funding systems have tended to steer investments into richer neighborhoods, racially discriminatory land use and housing policies that shape where low-income people of color can live have produced some of the deepest and most persistent inequities in access to parks. Recent improvements in park access for low-income people of color are based less on equity-oriented efforts by public agencies and more on residential location choices of affluent white residents.
The Indirect Effect of Justice Perceptions on Job Satisfaction Among Hispanic Employees
Authors: Heron Laura , Coseano Robert , Bruk-Lee Valentina
Published: July 2018

The notion that justice perceptions greatly influence behaviors and attitudes at work has been supported in the organizational behavior literature. Given the significant increase of Hispanic employees in the U.S. workforce in the last two decades, more research is needed to understand how justice relates to important outcomes in this population. The present study uses social exchange theory to examine conflict as a mediator of the relationship between justice and overall job satisfaction, and three individual facets of job satisfaction in a sample of 154 working Hispanic young adults in a variety of jobs. Findings indicate that conflict mediates the relationship between each dimension of justice and overall job satisfaction, and between two out of three examined facets of job satisfaction. The results provide evidence for the importance of justice perceptions in determining the attitudes and behaviors of Hispanic employees in the workplace.
Cultural Background and Measurement of Usage Moderate the Association Between Social Networking Sites (SNSs) Usage and Mental Health: A Meta-Analysis
Authors: Yin Xue-Qin , de Vries Dian A. , Gentile Douglas A. , Wang Jin-Liang
Published: July 2018

The present meta-analysis reviews English-language studies from 2005 to 2016 to investigate the relationship between social networking sites (SNSs) usage and mental health and to explore whether cultural background, measurement of usage, gender and age influence this relationship. A total of 63 studies and 144 effect sizes (positive indicators of mental health k = 62, negative indicators of mental health k = 82) were analyzed. We found that (1) SNSs usage was positively correlated with both positive and negative indicators of mental health, and no significant difference between these two mean correlations was found; (2) age did not moderate the relationship between SNSs usage and mental health; (3) SNSs usage was positively related to positive indicators for measures of social network size, while general use was positively related to negative indicators; (4) stronger correlations were found between SNSs usage and positive indicators of mental health in collectivist cultures than in individualistic cultures; (5) as percentage of female participants increased, a stronger relationship between social network sites and negative indicators of mental health was observed. This meta-analysis allows for integration of conclusions of past studies and establishes a clearer understanding of the relations between SNSs usage and mental health, including recognizing that complex factors (such as cultural background and gender) moderate these relations.
Re-theorizing civil society in China: Agency and the discursive politics of civil society engagement
Authors: Gleiss Marielle Stigum , Sæther Elin , Fürst Kathinka
Published: July 2018

Scholarship on Chinese civil society has produced rich empirical studies, but there have been few attempts to theorize the empirical knowledge acquired. Moreover, the question of how to conceptualize the political agency of civil society in a non-democratic context has received limited systematic attention. In this conceptual article, we draw on a discursive approach to politics to analyse the political agency of Chinese civil society. Our analysis is based on synthesizing insights gained through three separate research projects. We propose a conceptual framework which focuses on how civil society actors position themselves within a structured political space, how they represent social groups and issues through advocacy, how they care for these groups, and how they engage in processes of identity formation. Taken together, these four modalities constitute a framework for analysing the different political dimensions of civil society agency.
Braking force decoupling control without pressure sensor for a novel series regenerative brake system
Authors: Zhao Xun , Li Liang , Wang Xiangyu , Mei Mingming , Liu Congzhi , Song Jian
Published: July 2018

Regenerative braking can save energy consumption greatly for electric vehicles. For a series regenerative brake system, it is foundational to make the hydraulic braking torque and braking force decoupled and to provide the same pedal feeling as conventional braking system. In this paper, a high-performance and low-cost solution of series regenerative brake system is designed, which consists of a conventional anti-lock brake system and a motor-driven electromechanical booster (E-booster). Based on the series regenerative brake, a braking force decoupling control scheme without pressure sensor is proposed. First, a dynamic model of vacuum booster is established to calculate the desired brake pedal feeling in real time. Then, a sliding mode observer is used to estimate the load torque of the E-booster so that the expensive pressure sensors are eliminated. Finally, a sliding mode controller is developed to work with a robust threshold–controlled anti-lock brake system hydraulic control unit adjusting the pedal feeling and the wheel cylinder pressure simultaneously. Simulations and experiments were conducted in MATLAB/SIMULINK and on a test bench, respectively. The results show that the tracking ability of wheel cylinder pressure and quality of braking pedal feeling in different conditions are both good, providing a practical method to realize fully series regenerative brake.
How Endogenous Crowd Formation Undermines the Wisdom of the Crowd in Online Ratings
Authors: Le Mens Gaël , Kovács Balázs , Avrahami Judith , Kareev Yaakov
Published: July 2018

People frequently consult average ratings on online recommendation platforms before making consumption decisions. Research on the wisdom-of-the-crowd phenomenon suggests that average ratings provide unbiased quality estimates. Yet we argue that the process by which average ratings are updated creates a systematic bias. In analyses of more than 80 million online ratings, we found that items with high average ratings tend to attract more additional ratings than items with low average ratings. We call this asymmetry in how average ratings are updated endogenous crowd formation. Using computer simulations, we showed that it implies the emergence of a negative bias in average ratings. This bias affects items with few ratings particularly strongly, which leads to ranking mistakes. The average-rating rankings of items with few ratings are worse than their quality rankings. We found evidence for the predicted pattern of biases in an experiment and in analyses of large online-rating data sets.
Design and implementation of adaptive control logic for cart-inverted pendulum system
Authors: Hanwate Sandeep , Hote Yogesh V , Budhraja Akshit
Published: July 2018

In this article, an adaptive control logic is proposed to serve as a supervisory control system sufficient to curb the adverse effects due to modelling uncertainties and external disturbances. The control logic belongs to the class of adaptive control methodologies. The attractive attribute of this technique is that only the superior features of each individual candidate controller are obtained by applying appropriate weight to these controllers. In order to prove its effectiveness and applicability, the benchmark problem for stabilization of cart-inverted pendulum system is carried out using this technique. The system performance is tried against that with each individual candidate controllers existing techniques. In addition, the simulation-based analysis is strengthened by analysing the performance of a real-time cart-inverted pendulum system setup, stabilized using the proposed control logic.
Autoantibody profiling reveals four protein candidate autoantigens associated with systemic lupus erythematosus
Authors: Frostegård J , Hellström C , Nilsson P , Frostegård A G , Ajeganova S
Published: July 2018

Objectives

In systemic lupus erythematosus (SLE) there are typically many autoantibodies. The disease heterogeneity could be better understood with discovery of phenotype-specific antigens targeted by autoantibodies. We here aimed to identify novel autoantigens potentially related to SLE disease and a major complication, atherosclerosis.

Methods

Antigen microarrays were used to profile IgG autoantibody reactivity against 77 protein fragments (20–140 amino acids (aa) long, median 89 aa) produced within the Human Protein Atlas project, in serum samples from SLE patients ( n = 107) and age- and sex-matched population-based controls ( n = 107). Common carotid intima-media thickness, plaque occurrence and echogenicity were determined by B-mode ultrasound.

Results

We determined significant differences between patients and controls in IgG reactivity against four proteins. In patients compared to controls, there was an increase of IgG reactivity against zinc finger protein 688 (ZNF688), early B cell factor 2 (EBF2), crystallin, alpha B (CRYAB) and tumor necrosis factor receptor superfamily member 13C (TNFRSF13C). Of these four antigens, only anti-ZNF688 was associated with carotid atherosclerosis (plaque occurrence) and vulnerable plaques in SLE. There was a weak association between anti-EBF2 and SLE disease activity but no significant associations were determined for other measured IgG reactivity.

Conclusions

In this discovery screening we here demonstrate new candidate autoantigens with differential reactivity (reflecting autoantibody levels) in SLE patients and in controls and in relation to atherosclerosis in SLE.
Impact of Social Media Marketing on Brand Experience: A Study of Select Apparel Brands on Facebook
Authors: Beig Faseeh Amin , Khan Mohammad Furqan
Published: July 2018

Social media (SM) is an important and emerging area of research, which is of interest to marketers and academicians. Researchers have been studying the impact of social media marketing (SMM) on dimensions such as consumer-based brand equity, purchase intentions, attitudes and others. However, there are insignificant number of studies that have investigated the influence of SMM on brand experience. In this study, content sharing and interaction have been identified as two important marketing activities carried out by organizations in virtual communities. Therefore, the main objective of this study is to investigate the impact of content sharing and interaction on four dimensions of brand experience (sensory, affective, behavioural and intellectual). A mall-intercept survey was used to collect the data and 300 respondents were targeted, which resulted in 205 complete responses. Exploratory factor analysis (EFA) was run on independent and dependent variables, which was followed by confirmatory factor analysis (CFA) to validate the scale. The measurement scale was found to be reliable as well as valid. To test the hypothesis, structural equation modelling (SEM) was used and eight hypotheses were tested. The results showed that the content sharing and interaction have a positive significant impact on sensory, affective, behavioural and intellectual experiences.
Generalizability in Qualitative Research: A Tale of Two Traditions
Authors: Carminati Lara
Published: July 2018

Generalizability in qualitative research has been a controversial topic given that interpretivist scholars have resisted the dominant role and mandate of the positivist tradition within social sciences. Aiming to find universal laws, the positivist paradigm has made generalizability a crucial criterion for evaluating the rigor of quantitative research. This positivist echo has led generalizability to acquire a quantitative meaning, inappropriate for describing qualitative studies. The purpose of qualitative research has, thus, been directed toward providing in-depth explanations and meanings rather than generalizing findings. Through a critical review of empirical and theoretical studies, this commentary seeks to show that in qualitative domains, generalizability is possible provided that, first, generalizability is the main objective of the study; second, due precautions concerning the philosophy and terminology selected are taken. Hence, this commentary contributes to the literature on qualitative research by making suggestions for more consistent and unanimous procedures to adopt in qualitative inquiries.
The Optimal Time of Postoperative Feeding After Total Hip Arthroplasty: A Prospective, Randomized, Controlled Trial
Authors: Kim Jin-Woo , Park Yong-Gum , Kim Jae-Hyung , Jang Eui-Chan , Ha Yong-Chan
Published: July 2018

Whether early postoperative feeding (EPF) after total hip arthroplasty (THA) interferes with recovery of gastrointestinal motility is unclear. This randomized controlled trial compared the feasibility and patient tolerance to either EPF (at 4 hr postoperatively) or late postoperative feeding (LPF; ⩾8 hr postoperatively). One hundred forty patients were randomized to EPF (70 hips) or LPF (70 hips). Patient characteristics, surgical technique, intraoperative characteristics, and postoperative managements were similar between two groups. No significant differences were evident between the groups for vomiting ( p = .231), nausea ( p = .711), regain of appetite ( p = .711), amount of diet ( p = .630), type of food ( p = .429), abdominal pain ( p = 1.000), time to passage of flatus ( p = .231), time to defecations ( p = .619), development of postoperative ileus ( p = 1.000), and length of hospital stay ( p = .643). EPF and LPF show no difference in nausea, return of bowel function, and length of hospital stay without increasing postoperative morbidity. EPF can begin about 4 hr later after elective THA.
Discriminative Validity of the Dimensional Obsessive–Compulsive Scale for Separating Obsessive–Compulsive Disorder From Anxiety Disorders
Authors: Ong Mian-Li , Reuman Lillian , Youngstrom Eric A. , Abramowitz Jonathan S.
Published: July 2018

Objective: We investigated the diagnostic efficiency and clinical utility of the Dimensional Obsessive–Compulsive Scale (DOCS) and subscales for distinguishing obsessive–compulsive disorder (OCD) from anxiety disorders (ADs). Method: A total of 369 participants (167 male, Mage = 29.61 years) diagnosed with DSM-IV OCD or AD, recruited from specialty clinics across the United States, completed clinical interviews and self-report questionnaires, including the DOCS. Receiver operating characteristic analyses and diagnostic likelihood ratios (DiLRs) determined discriminative validity and provided clinical utility. Logistic regressions tested for incremental validity in the DOCS-total scale and subscales in predicting OCD status. Results: The DOCS-total scale and Contamination subscale performed best in differentiating between OCD and AD diagnosis (DOCS-total: Area under curve [AUC] = .75, p < .001; Contamination: AUC = .70, p < .001) as compared with the other subscales. At high scores (DOCS-total: 28+, Contamination: 6+), Contamination was more effective than the DOCS-total in differentiating OCD from ADs, with high scores in Contamination quadrupling OCD odds and DOCS-total by about threefold (Contamination DiLR+ = 4.04, DOCS-total DiLR+ = 2.82). At low scores (DOCS-total: 0-9, Contamination: 0-2), the converse was true, with low scores in Contamination cutting OCD odds by half and DOCS-total by one fifths (Contamination DiLR− = 0.52, DOCS-total DiLR− = 0.23). Conclusion: At high scores, the Contamination subscale is the most helpful subscale to differentiate OCD and ADs. For low scores, the DOCS-total scale performs the best among the scales.
Exercise and Cardioprotection: A Natural Defense Against Lethal Myocardial Ischemia–Reperfusion Injury and Potential Guide to Cardiovascular Prophylaxis
Authors: Chowdhury Mohammed Andaleeb , Sholl Haden K. , Sharrett Megan S. , Haller Steven T. , Cooper Christopher C. , Gupta Rajesh , Liu Lijun C.
Published: July 2018

Similar to ischemic preconditioning, high-intensity exercise has been shown to decrease infarct size following myocardial infarction. In this article, we review the literature on beneficial effects of exercise, exercise requirements for cardioprotection, common methods utilized in laboratories to study this phenomenon, and discuss possible mechanisms for exercise-mediated cardioprotection.
An experimental and computational investigation of air-borne noise generation mechanisms in tires
Authors: Gautam Prashanta , Azizi Yousof , Chandy Abhilash J.
Published: July 2018

The complex nature of the tire/road noise generation process makes it difficult to isolate and study each mechanism individually. This paper presents an experimental and numerical investigation of air-borne tire noise generation mechanisms for a realistic tire. Experimentally, a single slot is cut into the tire and the noise data are measured and studied. Air-borne noise is isolated by filling the slot with foam and comparing the resulting frequency spectra. Numerically, a previously developed computational fluid dynamics tire noise prediction model is employed to predict the air-borne noise for the same tire, under similar operating conditions. A direct comparison between the experimental and computational results is also presented in terms of pressure time traces and spectral characteristics. Comparisons indicate that the computational model is capable of predicting the noise generated by the air pockets in the tire. While providing a deeper understanding of the causes of air-borne noise, this paper also aims to demonstrate the use of a computational tool that can be used to obtain a reasonably accurate prediction of air-borne tire noise.
Initiation of venovenous extracorporeal membrane oxygenation in a patient receiving induction chemotherapy for acute myelogenous leukemia
Authors: Avasarala Sameer K , Qureshi Muhammad R , Waldron Madeline , Mukherjee Sudipto , Reddy Anita J
Published: July 2018

Background

Acute respiratory failure is a leading cause of intensive care unit admission in patients with hematological malignancies; it carries a mortality rate exceeding 50%. Venovenous extracorporeal membrane oxygenation use in patients with acute hematologic malignancies concurrently receiving induction chemotherapy is not well studied.

Case presentation

A 44-year-old male developed acute respiratory distress syndrome in the setting of newly diagnosed acute myelogenous leukemia. He underwent successful induction chemotherapy while on venovenous extracorporeal membrane oxygenation. His course was complicated by a devastating subarachnoid hemorrhage. Life support modalities were discontinued in accordance to the wishes of the family.

Conclusion

There is a lack of data to guide use of induction chemotherapy in patients with acute hematologic malignancies requiring venovenous extracorporeal membrane oxygenation, particularly with regard to dosing, safety, and efficacy of chemotherapeutic agents. This case highlights a potential role of venovenous extracorporeal membrane oxygenation in select young acute myelogenous leukemia patients who might benefit from this intervention and warrants further research.
Drinking Water and Public Health in an Era of Aging Distribution Infrastructure
Authors: Allen Martin , Clark Robert , Cotruvo Joseph A. , Grigg Neil
Published: July 2018

The provision of a safe and sustainable drinking water supply is one of the hallmarks of a successful society. Treated drinking water entering distribution systems in virtually all U.S. public drinking water systems meets regulations and is microbiologically safe. However, the opportunity for microbial contamination from decades to century old water distribution systems is increasing with time. Thus, increased health risk to consumers should be a driving factor in accelerating reinvestment in America’s aging water distribution water systems.
Novel Smartphone-Based Measures of Cell Phone Use While Driving in a Sample of Newly Licensed Adolescent Drivers
Authors: McDonald Catherine C. , Ward Kristen , Huang Yanlan , Wiebe Douglas J. , Delgado M. Kit
Published: July 2018

Background. Motor vehicle crashes are the leading cause of adolescent death. Cell phone use while driving is a contributor to adolescent motor vehicle crash risk. Objective and directly observable measures of cell phone use while driving are needed to implement interventions aimed at reducing cell phone–related crash risk. Aims. To describe novel smartphone-based measures of cell phone use while driving in a sample of newly licensed male and female adolescent drivers. Methods. Newly licensed adolescents in Pennsylvania installed a windshield-mounted device that pairs with a smartphone application to collect data on cell phone use while driving over 2 weeks during June 2016–October 2016. Descriptive statistics, independent t tests, and Wilcoxin Mann-Whitney U test were used to characterize handheld cell phone use (“unlock”) and call time while accounting for driving exposure. Results. Data from 16 adolescents (50% male) resulted in 5,624 miles in 705 trips, 964 cell phone unlocks, and 146.22 minutes of call time. Participants had a mean of 23.96 unlocks/100 miles ( SD = 22.97), 1.23 unlocks/trip ( SD = 0.96), and 4.87 unlocks/hour driven ( SD = 3.93). Males had significantly more unlocks/100 miles, unlocks at speed >25 mph/100 miles, unlocks/hour driven, and unlocks at speed > 25 mph/hour driven ( p < .05). Conclusions. Smartphone-based applications are an innovative means by which to collect continuous data on cell phone use while driving that can be used to better understand and intervene on this frequent behavior in newly licensed adolescent drivers.
Prediction of failure modes and peak loads in lattice sandwich panels under three-point loading
Authors: Omachi Ayumi , Ushijima Kuniharu , Chen Dai-Heng , Cantwell Wesley J
Published: July 2018

In this study, the failure behaviour of lattice sandwich panels under three-point loading has been studied using a nonlinear finite element analysis. The failure mechanisms of lattice-cored sandwich panels can be classified in three modes; facesheet yielding, facesheet wrinkling and core shear. When the panel fails due to facesheet yielding or core shear, the evaluation of the strength of the lattice-cored panel can be undertaken in the same manner as that of a foam-cored panel. In contrast, when wrinkle-like deformation occurs in the facesheets, the failure load can be estimated from the buckling stress of the facesheet. The failure mode map for the lattice-cored panel with the coordinate system tf / l and [Formula: see text] can be described by the analytical equations that predict the three failure modes. The failure mode map highlights the dominant failure modes for the lattice-cored sandwich panel based on the key design parameters tf / l and [Formula: see text].
Applying constrained layer damping to reduce vibration and noise from a steel-concrete composite bridge: An experimental and numerical investigation
Authors: Liu Quanmin , Li Xiaozhen , Zhang Xun , Zhou Yunlai , Chen Y Frank
Published: July 2018

Structure-borne noise from railway bridges has become increasingly severe due to increased train speeds and axle loads. Constrained layer damping can suppress structural vibration and noise considerably across a wide frequency range by dissipating vibrational energy via damping layer shear deformation. This paper proposes a theoretical method of calculating the train-induced vibration and noise of a constrained layer damping-enhanced railway bridge based on the train–track–bridge coupled vibration, the modal strain energy method, and statistical energy analysis. First, the vibration responses of bridge decks were obtained via train–track–bridge coupled vibration calculations. Second, the constrained layer damping subsystem modal loss factors were determined via modal strain energy analysis and converted to damping loss factors in 1/3 octave band. Third, upon substituting the vibration energies of the decks and the damping loss factors of constrained layer damping subsystems into the statistical energy analysis power balance equations, the transmitted vibration energy results from various bridge subsystems were determined by solving the referenced equations. The structure-borne noise from the bridge was finally determined by analyzing the vibratory energies of all of the bridge subsystems using vibro-acoustic theory. Numerical analysis and field measurements of vibration and noise from a three-span steel–concrete composite bridge before and after constrained layer damping installation were performed. The predicted train-induced vibration and noise agreed well with the measured results. The stringer web and flange vibration velocity levels were reduced by 10.5 dB and 6.1 dB, respectively, and the sound pressure level at a measurement point 25 m (horizontal) from the track centerline and 1.5 m off the ground decreased by 4.3 dB(A).
Transcriptome Analysis and Microsatellite Markers Development of a Traditional Chinese Medicinal Herb Halenia elliptica D. Don (Gentianaceae)
Authors: Yang Mingliu , Han Nanyu , Li Heng , Meng Lihua
Published: July 2018

Halenia elliptica is a popular Chinese medicinal herb that is used to treat jaundice disease and virus hepatitis, and its wild populations have been reduced significantly due to overharvesting recently. However, effective conservation could not be implemented because of the lack of genomic information and genetic markers. In this study, a de novo transcriptome of H elliptica was sequenced using the NGS Illumina, and 132 695 unigenes with the length >200 bp (base pairs) were obtained. Among them, a total of 32 109 unigenes were scanned to develop simple sequence repeats (SSRs). Based on NCBI (National Center for Biotechnology Information) nonredundant database (Nr), these SSR sequences were annotated and assigned into gene ontology categories. In addition, we designed 126 pairs of SSR primers for polymerase chain reaction amplification, of which 12 pairs were identified to be polymorphic among 40 individuals from 8 populations. We then used the 12 polymorphic SSRs to construct a UPGMA dendrogram of the 40 individuals. In addition, a significant correlation between the genetic relationship and the geographic distance was found, suggesting a phylogeographic structure in H elliptica. Moreover, 2 of these SSRs were also successfully amplified in a related species Veratrilla baillonii, suggesting their cross-species transferability. Generally, the SSR markers with high polymorphisms identified in this study provide valuable genetic resources and represent an initial step for exploring the genetic diversity and population histories of H elliptica and its related species.
Borders of belonging: challenges in access to anti-oppressive mental health care for Indigenous Latinx gender-fluid border-youth
Authors: Tenenbaum Silvia , Singer Katrissa
Published: July 2018

Many voices have called for decolonizing psychology as a profession and underscored the necessity of building and utilizing a counseling framework that rejects the rigidity of the gender binary and is mindful of the intersectional positionality that implicates subjectivities in complex vectors of oppression, invisibility, and marginalization. But how does one integrate and apply these complex constructs in a culturally relevant clinical practice? The gap between theory and practice appears to have widened, by both action and omission. Moreover, a myriad of clients run the risk of becoming re-oppressed by hegemonic practices in mental health services in Canada. Gender-fluid youth without immigration status who speak languages other than English are either pathologized or rendered invisible by academic discourses and clinical training practices in university settings. Using a critical approach to personality psychology and drawing upon extensive field research, this work discusses the challenges faced by Indigenous Latinx border-youth in accessing anti-oppressive mental health services in Toronto, Canada. The study conducted between 2010 and 2016, in which six Indigenous Latinx gender-fluid youth were interviewed, employed a qualitative narrative inquiry methodology and used a narrative story map tool to analyze data. Grounded in these research findings, this article highlights the necessity of implementing a culturally relevant and social justice–based training model for mental health care providers. Such training must include an ongoing critical examination of the socio-political underpinnings that ground clinical psychology’s epistemology, rather than adapting hegemonic therapeutic models and practices to a “population at risk.”
Exercise Stroke Volume in Adult Cystic Fibrosis: A Comparison of Acetylene Pulmonary Uptake and Oxygen Pulse
Authors: Van Iterson Erik H , Baker Sarah E , Wheatley Courtney M , Morgan Wayne J , Olson Thomas P , Snyder Eric M
Published: July 2018

Cardiac hemodynamic assessment during cardiopulmonary exercise testing (CPET) is proposed to play an important role in the clinical evaluation of individuals with cystic fibrosis (CF). Cardiac catheterization is not practical for routine clinical CPET. Use of oxygen pulse (O2pulse) as a noninvasive estimate of stroke volume (SV) has not been validated in CF. This study tested the hypothesis that peak exercise O2pulse is a valid estimate of SV in CF. Measurements of SV via the acetylene rebreathe technique were acquired at baseline and peak exercise in 17 mild-to-moderate severity adult CF and 25 age-matched healthy adults. We calculated [Formula: see text]. Baseline relationships between SV and O2pulse were significant in CF ( r = .80) and controls ( r = .40), persisting to peak exercise in CF ( r = .63) and controls ( r = .73). The standard error of estimate for O2pulse-predicted SV with respect to measured SV was similar at baseline (14.1 vs 20.1 mL) and peak exercise (18.2 vs 13.9 mL) for CF and controls, respectively. These data suggest that peak exercise O2pulse is a valid estimate of SV in CF. The ability to noninvasively estimate SV via O2pulse during routine clinical CPET can be used to improve test interpretation and advance our understanding of the impact cardiac dysfunction has on exercise intolerance in CF.
An Investigation of Comorbid Disease and Health Service Utilization Among Patients With Moderate to Severe Psoriasis in Newfoundland and Labrador
Authors: Gulliver Wayne P. , Randell Shane , Gulliver Susanne , Macdonald Don , Gregory Valerie , Nagle Sean , Chambenoit Olivier
Published: July 2018

Psoriasis is an inflammatory skin condition affecting 2% to 3% of the population and is associated with several comorbidities, including cardiovascular disease, depression, inflammatory bowel disease, metabolic syndrome, mood disorder, psoriatic arthritis, and weight gain. Psoriasis is treated with a number of topical and systemic therapies, including biologic drugs that directly target proinflammatory cytokines. This cross-sectional retrospective study investigated comorbid conditions reported in the Newfoundland and Labrador psoriasis population, outcomes associated with therapeutic treatment, and use of health care resources. Of the psoriasis comorbidities investigated, psoriatic arthritis was significantly associated with the use of biologic therapy while a failure to respond to biologics was associated with a higher incidence of cardiovascular disease. Patients responsive to biologic treatment had fewer hospital stays than patients treated with other therapies. Our results suggest that biologic therapies have a cardioprotective effect and reduce the number of hospital visits in patients whose symptoms are responsive to treatment.
‘There’s Nothing’: Unemployment, Attitudes to Work and Punitive Welfare Reform in Post-Crash Salford
Authors: Jeffery Bob , Devine Dawn , Thomas Peter
Published: July 2018

This article explores attitudes and barriers to work, and the impact of punitive welfare reform in the City of Salford (Greater Manchester). Contextualising our discussion in relation to the contemporary landscape of inequality and social class in the UK, we draw attention to the trends towards the expansion of low-paid work, precarity, and stigmatisation, and highlight the need for more qualitative, geographically sensitive studies of how these phenomena are being played out. Describing the economic context of the City of Salford and the current state of its labour market, we then present the findings from qualitative interviews with a sample of low income, mostly working-class participants, who describe their orientations towards employment, perceptions of the labour market, barriers to employment and interactions with punitive welfare reform. Ultimately, we conclude by noting that both strategies of neoliberal statecraft aimed at the reduction of the charitable state described by Wacquant are at play in Salford and that their result is a discouragement from claiming welfare and a recommodification of labour.
Fuzzy clustering of time-series model to damage identification of structures
Authors: Zeng Yongping , Yan Yongyi , Weng Shun , Sun Yanhua , Tian Wei , Yu Hong
Published: July 2018

Time-series methods have been popularly used for damage identification of civil structure because of its output-only and non-model approach. Since the existence of structural damage is usually vague and not focussed on any particular time point, the switches in damage patterns from one time state to another are necessary to be treated in a fuzzy way. This article develops a damage identification method based on the fuzzy clustering of time-series model. The changes of model coefficients of time-series model are proposed to indicate the undamaged and damaged states by the fuzzy c-means clustering algorithm. The residual errors of time-series model are used to identify the damage location and damage severity. The proposed method is applied to an experimental segment lining and a numerical study of a practical bridge. The results verify that the proposed method is accurate and efficient to detect the structural damage location and severity. Since the computational process of time-series model and fuzzy clustering require low computational cost, the proposed data-based damage identification method is applicable to the online structural health monitoring system of large-scale civil structures.
To identify what is not there: A definition of missingness patterns and evaluation of missing value visualization
Authors: Fernstad Sara Johansson
Published: July 2018

While missing data is a commonly occurring issue in many domains, it is a topic that has been greatly overlooked by visualization scientists. Missing data values reduce the reliability of analysis results. A range of methods exist to replace the missing values with estimated values, but their appropriateness often depend on the patterns of missingness. Increased understanding of the missingness patterns and the distribution of missing values in data may greatly improve reliability, as well as provide valuable insight into potential problems in data gathering and analyses processes, and better understanding of the data as a whole. Visualization methods have a unique possibility to support investigation and understanding of missingness patterns by making the missing values and their relationship to recorded values visible. This article provides an overview of visualization of missing data values and defines a set of three missingness patterns of relevance for understanding missingness in data. It also contributes a usability evaluation which compares visualization methods representing missing values and how well they help users identify missingness patterns. The results indicate differences in performance depending on the visualization method as well as missingness pattern. Recommendations for future design of missing data visualization are provided based on the outcome of the study.
Analyzing and modeling inter-sensor relationships for strain monitoring data and missing data imputation: a copula and functional data-analytic approach
Authors: Chen Zhicheng , Li Hui , Bao Yuequan
Published: July 2018

Data analysis and modeling are very important in structural health monitoring. A good model is very conducive to better understanding, interpretation, estimation or prediction of structural performance, and dependence of variables. Strain responses are one of the most common measurements in structural health monitoring. Conventional modeling approaches in structural health monitoring for strain monitoring data have limitations in flexibly capturing the complex dependence structures of stochastic components between sensors. Also, addressing the nonlinear phase components is challenging when they are employed to model the inter-sensor relationships for temperature-induced strains. This article presents a refined inter-sensor modeling approach for strain monitoring data, which enables us to better understand the dependence of strain at different locations. Specifically, nonparametric copulas are employed to flexibly describe the dependence structures and the link marginal distributions to form the joint distribution to capture the inter-sensor relationship of stochastic strain responses. As opposed to traditional approaches in structural health monitoring, temperature-induced strains are treated as functional data; the phase and amplitude components are separately modeled by warping functions and a piecewise linear mapping model based on phase–amplitude separation technique; then, phase model and amplitude model are combined to form the final sensor-to-sensor mapping model. A similar functional modeling approach is also discussed for local strain responses resulting from wheel forces. Cooperated by a kernel regression model, applications of the established models in missing data imputation (i.e. replacing missing records by substitute values) are discussed for stochastic strain responses and temperature-induced strains using field monitoring data.
Critical pedagogy in the university: Can a lecture be critical pedagogy?
Authors: Clark Lauren B
Published: July 2018

In a higher education system driven by student satisfaction, there has been a recent push towards more student-centred methods of teaching such as collaborative learning and seminar discussions despite an increase in student numbers. In contrast, some academics defend the transformative and educative possibilities of the lecture by challenging its conception as ‘banking education’, asking us to reflect on the purpose of education in a way that calls into question our assumptions about the transmission of information through lecturing. While acknowledging the place of the lecture in higher education, I want to consider whether a lecture can be critical pedagogy by interrupting previous ways of thinking and being. As the teacher lectures he/she models what it means to know, to think and to act, but is this enough to make it critical pedagogy? Looking at conceptualisations of the transformative intellectual and the relationship between curriculum and pedagogy alongside data from case study research, this article will explore what critical pedagogical practice looks like in the university.
Novel Sales Tracking Method to Evaluate a Healthy Corner Store Intervention
Authors: Sadeghzadeh Claire Jon , Soldavini Jessica , Uslan Daniella , De Marco Molly
Published: July 2018

This article describes a Supplemental Nutrition Assistance Program—Education-funded (SNAP-Ed) healthy corner store intervention and novel evaluation method for tracking sales of promoted foods in two corner stores in North Carolina. The healthy corner store intervention was designed to encourage the purchase of healthy foods among SNAP participants. Stickers were placed on eligible foods to highlight healthy options as well as assist with tracking the sales of those products. Store staff removed the sticker and placed it on a tracking sheet that recorded the date, number of healthy foods purchased, whether the purchased item(s) contained a fruit or vegetable, and the type of payment. Storeowners were interested in participating and remained engaged throughout the program; however, there were challenges with fidelity to the intervention and its evaluation using the sticker method to track sales. Additional research on methods for evaluating healthy retail interventions that are simple, low cost, and feasible for retailers that do not have electronic sales data is needed.
Representing the Western Super-minority: Desirable Cosmopolitanism and Homosocial Multiculturalism on a South Korean Talk Show
Authors: Oh David C.
Published: July 2018

Airing on Joongang Tongyang Broadcasting Company (JTBC), a South Korean television network, Non Summit represents multiculturalism on the small screen through light-hearted, loosely structured debates between eleven men from different nations that is moderated by three Korean hosts. This study approaches the show’s representation of multinational, homosocial masculine friendship and commentary as a text that advances the goals of damunhwa, a locally specific articulation of multiculturalism. Non Summit does this by constructing a normative ideal of a cosmopolitan citizen who espouses liberal progressive values and appreciation for superficial multicultural difference. The ideal, which the show associates with the West, is occasionally ruptured through fleeting moments when non-Western members challenge Western superiority and Koreanness, however, the ruptures are patched through the show’s policing of difference through shared, heteronormative masculinity and homosocial friendship.
Performing Ethnography: Staging Resistance
Authors: Denzin Norman K.
Published: July 2018

In this performance script, I interrogate the ethical and political implications of the interdisciplinary turn to performance and theatre in critical ethnography. I focus on ethnodramas, and the performance theories of Boal, Conquergood, Freire, Goffman, Madison, Saldana, Schechner, and Turner. A play-within-a-play is offered as an instance of this kind of writing.