bluuebunny/crossref_metadata_2025 huggingface dataset:
Predicting transient diesel engine NOx emissions using time-series data preprocessing with deep-learning models
Authors: Shin Seunghyup , Lee Youngbok , Park Jihwan , Kim Minjae , Lee Sangyul , Min Kyoungdoug
Published: March 2021

Deep-learning models were developed and evaluated for predicting the engine-out emission of NOx—one of the main pollutants emitted from diesel engines—under transient conditions, that is, the Worldwide Harmonized Light Vehicles Test Procedure (WLTP). Phenomena of transient conditions are difficult to predict accurately via the conventional modeling approaches. Two algorithms—the deep neural network (DNN) and long short-term memory (LSTM)—were evaluated regarding the accuracy and calculation time. Training was performed using measured data, and the results indicated that the LSTM model ( R2 = 0.9777, RMSE = 20.6 ppm) was more accurate than the DNN model ( R2 = 0.9671, RMSE = 25.5 ppm). However, the DNN model had a significantly higher computation speed (0.36 s) than the LSTM model (1381.0 s). Data preprocessing was performed to insert time-related information into the data; the DNN model trained with the measured data lacked this feature. Data were preprocessed by the calculation of the weighted average of previous timestep data to the current-timestep data. The weighted average was calculated according to various ratios, for example, 7:3, 6:4, 5:5, 4:6, and 3:7. By applying a 7:3 weighted average for training the DNN model, the accuracy of the DNN model was achieved to an R2 value of 0.9741, and RMSE 22.8 ppm (only R2 value 0.0036 smaller and RMSE 2.2 ppm larger than the LSTM model) without sacrificing the calculation speed. The results of this study suggest that data preprocessing of the DNN model is an effective method for achieving accuracy as high as that of the LSTM model. The developed DNN model for the NOx emission prediction can be used as a virtual sensor for real-time prediction owing to its accuracy and computation time.
A guaranteed cost strategy for speed-limit control of vehicles based on map information
Authors: Wang Guoxu , Wu Jie , Ma Xiaoqian
Published: March 2021

This paper proposes a guaranteed cost strategy for longitudinal control of vehicles mainly considering speed-limit control based on map information. Firstly, a state-space model is developed to calculate the desired acceleration for the speed-limit control. Secondly, based on the formulated state-space model, a state-feedback guaranteed cost strategy is developed for the speed-limit control with system uncertainties considered. The stability of the proposed state-feedback guaranteed cost control system is discussed according to Lyapunov stability theory by means of linear matrix inequality approach and Schur complement. Moreover, with the proposed control law, it is proved that the defined cost function has an upper bound. Thirdly, to reduce potential unnecessary acceleration or deceleration caused by disturbances, an event-triggered filter is designed. Finally, to evaluate the performance of the proposed guaranteed cost controller, a switching PID controller, and a guaranteed cost controller without the proposed event-triggered filter are developed for comparisons. The effectiveness and the advantages of the proposed guaranteed cost strategy are proved by simulations where model uncertainties, disturbances, and the latency of the actuator are considered.
Factors associated with sexually transmitted infection/HIV diagnosis among a predominantly university population in Brazil
Authors: Bomfim Isabella GO , dos Santos Sigrid DS , Ruggiero Cíntia M , Napoleão Anamaria A ,   SANCAHIV
Published: March 2021

In Brazil, the increasing prevalence of HIV infection in young people makes it critical to know its distribution in university communities. In this cross-sectional study, we evaluated the impact of STI/HIV testing campaigns on university campuses from 2013 to 2017. The participants took part in rapid testing for HIV, syphilis, hepatitis B and C, and counseling sessions. A total of 2691 people participated in the campaigns. Of these, 79.4% were single, and 50.3% were women. The median age was 24 years old, and 77.9% of participants had ≥12 years of formal education. Most reported having unprotected sex in the last year (87.4%). The positivity rates for HIV, syphilis, hepatitis B virus, and hepatitis C virus were 0.56%, 1.20%, 0.19%, and 0.11%, respectively. The characteristics associated with HIV infection were being men who have sex with men (MSM) (aOR = 12.06; 95% CI = 3.83–37.99) and having <12 years of schooling (aOR = 3.28; 95% CI = 1.03–10.38). Factors associated with syphilis seropositivity were older age (aOR = 1.06; 95% CI = 1.03–1.09), multiple partners (aOR = 2.44; 95% CI = 1.08–5.50), and being MSM (aOR = 5.40; 95% CI = 2.49–11.72). Positivity for hepatitis B tended to decrease with the years of testing ( p = 0.023) and for hepatitis C to increase with age ( p = 0.035). Our study observed a high vulnerability to HIV and syphilis infection in a university community, which needs an early prevention strategy, including regular testing, continuing sexual education, easy access to condoms, and pre- and postexposure HIV prophylaxis.
Challenging the Link Between Early Childhood Television Exposure and Later Attention Problems: A Multiverse Approach
Authors: McBee Matthew T. , Brand Rebecca J. , Dixon Wallace E.
Published: March 2021

In 2004, Christakis and colleagues published findings that he and others used to argue for a link between early childhood television exposure and later attention problems, a claim that continues to be frequently promoted by the popular media. Using the same National Longitudinal Survey of Youth 1979 data set ( N = 2,108), we conducted two multiverse analyses to examine whether the finding reported by Christakis and colleagues was robust to different analytic choices. We evaluated 848 models, including logistic regression models, linear regression models, and two forms of propensity-score analysis. If the claim were true, we would expect most of the justifiable analyses to produce significant results in the predicted direction. However, only 166 models (19.6%) yielded a statistically significant relationship, and most of these employed questionable analytic choices. We concluded that these data do not provide compelling evidence of a harmful effect of TV exposure on attention.
Design, system modeling and energy management for a novel hydraulic pumping unit
Authors: Li Zhenhe , Wang Zhicheng , Zhi Changjian , Zhang Daxiang , Song Xianchen , Chen Zhixin
Published: March 2021

Compared to conventional pumping units with low efficiencies and general hydraulic pumping units using hydraulic accumulators to recover and reuse energy, this article presents a novel multi-source hydraulic pumping unit with the symmetrical structure in order to save energy. First, the balanced mechanical structure through the symmetrical arrangement of double wells can not only decrease the total power of the system significantly but also make the power consumption of the pumping unit drop substantially in the constant speed phase. Uniquely, the proposed pumping unit is jointly driven by a hydrostatic transmission hydraulic system and a small-scale solar–wind hybrid power generation system. The hydrostatic transmission technique enables the system power output to adapt to the load requirements in real time without extra throttling and overflow losses, while the solar–wind hybrid system drives alone in the constant speed phase to save energy and bring environmental benefits. After parameter analyses and calculations, the energy-saving advantage of the proposed system is displayed when compared to a counterpart. Then, the mathematical model of the system is developed, and the rule-based energy management strategy is designed for the energy distribution of the proposed system. The simulation results verify that the feasibility and reasonableness of the proposed system.
Holocene sedimentation in the Hupo Trough of the southwestern East Sea (Japan Sea) and development of the East Korea Warm Current
Authors: Khim Boo-Keun , Kim Sunghan , Park Yu-Hyeon , Lee Jongmin , Ha Sangbeom , Yoo Kyu-Cheul
Published: March 2021

Various sediment properties, such as mean grain size, total organic carbon, total nitrogen, C/N ratio, CaCO3, and biogenic opal content, were analyzed for a box core (BC02; 45 cm long) and a gravity core (GC02; 628 cm long), which were collected from the western margin of the Hupo Trough located off the eastern coast of Korea. The study area has been affected by the East Korea Warm Current (EKWC), a branch of the Tsushima Warm Current (TWC). The analytical results obtained for BC02 and the upper part of GC02 were in agreement, affirming the core-top preservation of GC02. Based on the corrected calibrated AMS 14C dates, the sedimentation rate of GC02 changed abruptly at ~8.2 ka from ~4.0–10.2 cm/kyr in the lower part to ~56.6–91.0 cm/kyr in the middle to upper part. This corresponds to the lithologic change from sandy mud to mud sediments showing the mean grain size change from 6.9 to 46.0 μm. Diverse paleoceanographic proxies representing the surface water condition exhibited varying degree of change at ~8.2 ka, after which all the properties remain almost unchanged, implying stable and continuous depositional conditions following the complete development of the EKWC. Furthermore, it indicated that the sediment depositional conditions in the Hupo Trough in response to the EKWC might have stabilized at ~8.2 ka since the opening of the Korea Strait during the Holocene sea level rise. Moreover, microfossil data from previous studies on the establishment of the TWC in the East Sea (Japan Sea) support our interpretation that the sediment properties revealed the Holocene development of the EKWC in the Hupo Trough.
Effect of maleic anhydride grafted polylactic acid concentration on mechanical and thermal properties of thermoplasticized starch filled polylactic acid blends
Authors: Chauhan Shakti , Raghu N , Raj Anand
Published: March 2021

Polylactic acid (PLA) is blended with native starch or thermo plasticized starch (TPS) for preparing biodegradable composites. However, poor compatibility of PLA with starch results in the composites with inferior mechanical properties. This study examines the effect of Maleic Anhydride-Grafted-PLA (GMAPLA) coupling agent and its concentration on the extent of improvements in mechanical and thermal properties of PLA –TPS blends. Maleic anhydride was grafted on PLA in Haake torque rheometer, characterized and used as the coupling agent. PLA/TPS (wt/wt) blends (70/30 and 50/50) were prepared by twin screw extrusion. GMAPLA at three different levels 5%, 10% and 15% (wt%) with respect to PLA content was taken to study its effect on mechanical properties of blends. Presence of GMAPLA significantly improved the mechanical properties (tensile, flexural and impact strength) of TPS/PLA blends. Among the three concentrations, 10% GMAPLA in the blend was found to give the maximum improvement in strength properties. Dynamic mechanical analysis and thermo-gravimetric analysis indicated no significant effect of GMAPLA content on transition temperatures and thermal degradation behavior of the blends.
Helping actors improve their career well-being
Authors: Chen Charles P , Jagtiani Komila
Published: March 2021

It is generally assumed that visible actors in the performing arts industry maintain overall wellness despite the knowledge that an actor’s life is often characterized by instability. While an actor’s performance is often critiqued subjectively and critically, the variety of occupational risks associated with an actor’s well-being is less closely examined. Prior research suggests those working within the acting profession experience significant levels of distress. As a result, this article, first, aims to address the issues confronting the actor, in particular, anxiety associated with erratic employment, vulnerability to adverse working conditions, and conflict in identity owing to the impact of acting coupled with the effect of economic insecurity. Second, the paper follows with a consideration of key counselling theories to help strengthen this diverse group’s personal well-being and career prospects. By examining counselling interventions, the application of these theories can allow actors to develop optimally in acting industries worldwide.
Teenagers and Young Adults with Cancer: An Exploration of Factors Contributing to Treatment Adherence
Authors: Carr Elizabeth , Rosengarten Leah
Published: March 2021

This systematic appraisal explores the literature surrounding treatment adherence in teenagers and young adults (TYAs) with cancer, with the aim of identifying influential factors that could affect adherence rates. This area is particularly important due to the increased risk of relapse and death associated with nonadherent behavior. In addition, TYAs are found to be the age group least likely to adhere to medical regimes. A comprehensive review of the literature was conducted and seven studies met the inclusion criteria, the articles were then critiqued using a data extraction form and eight themes were generated and discussed. This review highlights the complexities and difficulties in measuring adherence, as well as the key factors affecting adherence, before identifying implications for practice. Good communication and relationships are crucial between all parties involved in TYAs’ care including the patients, professionals, parents, and peers. A model of adherence was adapted on the basis of the result of the systematic review, other literature pertaining to adherence in TYAs, and the clinical experience of the authors. Personal factors and external factors, along with treatment factors and interactions with the system all have an effect on the patient's response or ability to adhere. It is apparent that there is a need for more high-quality qualitative and quantitative research in this area, with an emphasis on finding interventions that directly improve adherence specific to this age group.
Cathepsin K (Clone EPR19992) Demonstrates Uniformly Positive Immunoreactivity in Renal Oncocytoma, Chromophobe Renal Cell Carcinoma, and Distal Tubules
Authors: Iakymenko Oleksii A. , Delma Katiana S. , Jorda Merce , Kryvenko Oleksandr N.
Published: March 2021

Introduction. Cathepsin K is overexpressed in several tumors associated with microphthalmia transcription factor (MiTF) family or mechanistic target of rapamycin (mTOR) upregulation. Among renal neoplasms, MiTF translocation renal cell carcinoma (RCC), perivascular epithelioid cell neoplasms (PEComa), and eosinophilic solid and cystic RCC have demonstrated Cathepsin K immunoreactivity. In this study, we demonstrate a uniform Cathepsin K expression in oncocytoma, chromophobe RCC (CHRCC), and distal tubules. Design. We stained 13 oncocytomas, 13 CHRCC, 14 clear cell RCC (CCRCC), 9 papillary RCC (PRCC), 9 PEComas, and 5 MiTF RCC. Additionally, we assessed immunoreactivity for Cathepsin K in non-neoplastic renal parenchyma. Immunolabeling was performed on regularly charged slides from formalin-fixed paraffin-embedded tissue with monoclonal anti-rabbit antibodies to human Cathepsin K (clone EPR19992, Abcam). Results. All oncocytomas demonstrated diffuse strong cytoplasmic immunolabeling. CHRCC demonstrated uniform less intense immunolabeling in all cases with membranous accentuation. The assessment of the non-neoplastic renal parenchyma in all cases showed strong cytoplasmic immunoreaction in distal tubules and proximal tubules stained faintly. Mesangial cells were not immunoreactive. All MiTF RCC and PEComas were immunoreactive for Cathepsin K, whereas CCRCC and PRCC were negative in all cases. Conclusions. In this study, we expand the spectrum of renal neoplasms reactive with a particular clone of Cathepsin K (EPR19992). Distal tubules are strongly immunoreactive for Cathepsin K. Our conclusions need to be taken into consideration when differential diagnosis includes MiTF RCC or PEComa and this Cathepsin K clone is included in the immunohistochemical panel. This newer antibody clone was not tested in prior publications, potentially explaining the difference in conclusions.
Combined effect of thermosonication and high hydrostatic pressure on bioactive compounds, microbial load, and enzyme activities of blueberry juice
Authors: Chen Tianshun , Li Bin , Shu Chi , Tian Jinlong , Zhang Ye , Gao Ningxuan , Cheng Zhen , Xie Xu , Wang Jiaxin
Published: March 2021

The current study is aimed to evaluate the combined effect of thermosonication (TS) and high hydrostatic pressure (HHP) on enzyme activities (polyphenolase and peroxidase), microbial load and phenolic compounds (phenols, flavonoids, and anthocyanins) of blueberry juice. Blueberry juice has been treated with TS (40 kHz and 240 W) at different temperatures (25 °C and 45 °C) for 15 mins with subsequent different HHP (200, 400 and 600 MPa) for 5 mins at room temperature. The results revealed that a combined use of HHP of 400 MPa and 600 MPa with TS at 45 °C not only reduced microorganisms below 1 logCFU/mL, but also significantly inactivated enzymes. The treatments also increased the phenolic compounds, peroxyl radical scavenging capacity (PSC), and DPPH free radical scavenging activity to a higher level without causing any changes in soluble solids and pH. Therefore, the combination of HHP and TS can be used as a novel alternative nonthermal technology to improve the nutritional qualities of blueberry juice, which produces a desirable, healthy juice for consumers.
Recent Attitudes toward ADHD in the Broader Community: A Systematic Review
Authors: Bisset Matthew , Winter Leanne , Middeldorp Christel M. , Coghill David , Zendarski Nardia , Bellgrove Mark A. , Sciberras Emma
Published: March 2021

Objective:

This review aimed to understand the broader community’s attitudes toward ADHD, which could facilitate public health interventions to improve outcomes for individuals with ADHD.

Methods:

A standardized protocol identified peer-reviewed studies focusing on attitudes of broader community samples, published from January 2014 to February 2020 (inclusive).

Results:

A total of 1,318 articles were screened and 10 studies were included, examining attitudes of broader community samples from Australia, Sweden, Germany, Finland, Korea, Indonesia, and the United States. Findings revealed that broader community samples displayed varying degrees of ADHD-related knowledge, negative attitudes (that ADHD is over-diagnosed; that pharmacological treatment is not acceptable; that those with ADHD are more likely to exhibit poor behavior), and a desire for maintaining social distance from individuals with ADHD.

Conclusion:

Findings suggest that community attitudes are generally negative toward those with ADHD. Targeted mental health literacy could provide an important avenue for improving the broader community’s attitudes toward those with ADHD.
Effects of Implementation and Enforcement Differences in Prescription Drug Monitoring Programs in 3 States: Connecticut, Kentucky, and Wisconsin
Authors: Dickson-Gomez Julia , Christenson Erika , Weeks Margaret , Galletly Carol , Wogen Jennifer , Spector Antoinette , McDonald Madelyn , Ohlrich Jessica
Published: March 2021

Background and aims:

Prescription Drug Monitoring Programs (PDMPs) were designed to curb opioid misuse and diversion by tracking scheduled medications prescribed by medical providers and dispensed by pharmacies. The effects of PDMPs on opioid prescription, misuse and overdose rates have been mixed due in part to variability in states’ PDMPs and difficulties measuring this complexity, and a lack of attention to implementation and enforcement of PDMP components. The current study uses qualitative interviews with key informants from 3 states with different PDMPs, Connecticut, Kentucky and Wisconsin to explore differences in the characteristics of the PDMPs in each state; how they are implemented, monitored and enforced; and unintended negative consequences of these programs.

Methods:

We conducted in-depth interviews with key informants from each state representing the following sectors: PDMP and pain clinic regulation agencies, Medicaid programs, state licensing boards, pharmacies, emergency medicine departments, pain management clinics, first responders, drug courts, drug treatment programs, medication assisted treatment (MAT) providers, and harm reduction organizations. Interview guides explored participants’ experiences with and opinions of PDMPs according to their roles. Data analysis was conducted using a collaborative, constant comparison method.

Results:

While all 3 states had mandated registration and reporting requirements, the states differed in the implementation and enforcement of these and the extent to which provider prescribing was monitored. These, in turn, influenced how medical providers perceived the PDMP and changed how providers prescribed opioids. Unintended consequences of state PDMPs included under-prescribing for pain and “dumping” patients who were long term users of opioids or who had developed opioid use disorders and may explain the increase in illicit heroin or opioid use.

Conclusion:

State PDMPs with similar mandates may differ greatly in implementation and enforcement. These differences are important to consider when determining the effects of PDMPs on opioid misuse and overdose.
Examination of elementary students’ emotions and personal and social responsibility in physical education
Authors: Simonton Kelly L. , Shiver Victoria N.
Published: March 2021

This study examined the relationships between student emotions in elementary physical education (PE) and their self-reported personal and social behaviors. Additionally, self-reported emotion and personal and social behavior differences were tested between students receiving a traditional multiactivity and games PE curriculum and those experiencing a Teaching Personal and Social Responsibility (TPSR) model curriculum. Participants were 2nd and 3rd grade students ( n=222) from two schools in the United States. Both schools had similar student demographics, school needs, and community characteristics. For secondary comparison analysis, school one ( n=87) served as the comparative school receiving a traditional multiactivity curriculum and school two ( n=135) received the TPSR model. Results showed that enjoyment and anger were predictors of students’ behavioral engagement. Findings also disclosed a significant positive effect for enjoyment, perceived responsibility, and behavioral engagement favoring the TPSR group. The TPSR model may be positively associated with elementary students’ beliefs about responsible behaviors, student enjoyment, and training students in positive ways to deal with anger. Overall, investigating the relationship between students’ emotions and their personal and social development, as it relates to PE, may provide intervention to reduce some negative experiences students report in these environments. Likewise, positive emotional experiences may increase in-class engagement and the adoption of adaptive personal and social responsibilities within PE and potentially into other areas in and out of school.
Ego effectiveness: A novel individual difference approach to health behavior and coping
Authors: Robinson Michael D , Irvin Roberta L , Persich Michelle R
Published: March 2021

Taking care of one’s health can require trading current feelings for longer-term considerations of health and well-being. The present research (total N = 366) sought to assess ego operations of this type in terms of the extent to which the self would be capable of responding to health-challenging situations in ways deemed to be effective. Ego effective individuals engaged in a greater frequency of health-protective behaviors as well as a lesser frequency of risky behaviors, both with respect to a peer protocol (Study 1) and a daily life protocol (Study 2). Findings are informative concerning multiple self-regulation perspectives on health.
For a translational sociology: Illuminating translation in society, theory and research
Authors: Bielsa Esperança
Published: March 2021

This article argues for a non-reductive approach to translation as a basic social process that shapes both the world that sociologists study and the sociological endeavour itself. It starts by referring to accounts from the sociology of translation and translation studies, which have problematized simplistic views of processes of cultural globalization. From this point of view, translation can offer an approach to contemporary interconnectedness that escapes from both methodological nationalism and what can be designated as the monolingual vision, providing substantive perspectives on the proliferation of contact zones or borderlands in a diversity of domains. The article centrally argues for a sociological perspective that examines not just the circulation of meaning but translation as a process of linguistic transformation that is necessarily embodied in words. Only if this more material aspect of translation is attended to can the nature of translation as an ordinary social process be fully grasped and its intervention in meaning-making activities explored. This has far-ranging implications for any reflexive account of the production of sociological works and interpretations.
“What an idiot!” – How the appraisal of the writer of an uncivil comment impacts discussion behavior
Authors: Kluck Jan P , Krämer Nicole C
Published: March 2021

Despite incivility in online discussions being linked to various negative effects, less is known about the mechanisms of how incivility works. So far, explanations by social perception have been neglected. Therefore, drawing on the multiple inference model, this study employs an attribution theoretical approach to examine whether the motives and traits that people attribute to senders of uncivil or opposing comments affect their intentions to join a discussion. Employing a 2 (incivility vs. no incivility) × 2 (like-minded vs. opposing stance) between-subjects design, data from an online experiment ( N = 452) were analyzed applying a path model (SPSS AMOS). Results revealed that participants attributed more aggressive and less nonaggressive motives to senders of uncivil messages. The attribution of aggressive motives consequently increased hostile inferences about the target. A similar pattern occurred when individuals were exposed to an opposing stance. In result, hostile inferences about the sender’s traits decreased participants’ willingness to discuss.
Adapting participatory research methods for reflexive environmental management
Authors: Rodenbiker Jesse
Published: March 2021

This article discusses methodological adaptations to participatory methods for reflexive environmental management. Reflexive approaches to research methods as process, this article contends, can elucidate social dynamics that standard sampling frames and rote procedures may elide. This argument is supported through a discussion of key insights from scholarship about participatory research methods, as well as auto-reflections on methodical adaptations undertaken while conducting photovoice research on environmental management in peri-urban villages of Southwest China. Reflexive adaptations to participatory methods discussed in this paper include ethnographic attention to forms of refusal, suspended participation, and individual interviews with and without visual aids. These methodological adaptations highlight relations of power between researchers and participants, as well as amongst participants. They also highlight diverse social needs and uneven environmental management processes. Although reflexive approaches to participatory methods are key to producing more widely representational findings and socially just sustainability practices, they are not a panacea for universal inclusivity. Reflexive methodological adaptations have their own limitations and introduce new power relations between participants and researchers. The article concludes with a discussion of how reflexive methodological adaptations bear on research praxis. In particular, the conclusion highlights how reflexive adaptations to research methods are crucial to socially just environmental management and sustainability practices.
Do self-determining states have a conditional right to exclude would-be immigrants?
Authors: Sun Jinyu
Published: March 2021

Why should (or should not) we have a system of different states that each claim both internal and external sovereignty? How can the state gain its legitimate authority to rule? What is the problem with the ideal of the ‘global citizen’? How should states respond to different groups’ secession claims? To what extent should states have the right to control their borders? If one finds such questions intriguing, one should read Anna Stilz’s book Territorial Sovereignty: A Philosophical Exploration. Stilz argues that a system of territorial states serves to protect important values – occupancy, basic justice and collective self-determination – which are key to living an autonomous life. I focus on the theory’s implication for the debates on border control. I contend that Stilz’s arguments still have difficulties grounding the state’s right to exclude would-be immigrants. That said, the book has done a great job in providing a liberal theoretical framework for us to reflect upon citizenship, immigration, succession claims, cosmopolitan ideals, the colonial legacy and disputes over borders and resources.
Effect of solidity on aeroacoustic performance of a vertical axis wind turbine using improved delayed detached eddy simulation
Authors: Rasekh Sepehr , Karimian Saeed
Published: March 2021

Vertical axis wind turbines (VAWTs) can be suitably installed in urban regions. Although the power performance is essential, the noise generated by a VAWT may influence the living environment. An accurate prediction of power and noise performance is therefore necessary. In the present study, a precise aerodynamic and aeroacoustic performance assessment of a Darrieus VAWT is accomplished with the aim of exploring the effect of solidity parameter using a high-fidelity method. The improved delayed detached eddy simulation (IDDES) and the Ffowcs Williams and Hawkings (FW-H) acoustic analogy approaches have been utilized for predicting flow field and noise level. The simulations were performed in three different solidities at a specific tip speed ratio (TSR). It is shown that changing the solidity parameter affects both power and noise level remarkably. Change in the aerodynamic performance mostly occurs due to variation in instantaneous effective angle of attack which comprises many detailed discussions. The lower the solidity the higher the value of effective angle of attack. The noise level also affects by changing solidity as consequence of flow field variation. It is discussed here how the noise level would alter in terms of solidity, TSR, distance and azimuth angle. As the solidity increases, the sound pressure level (SPL) at blade pass frequency increases. Since design of quieter VAWT with application in urban regions recently is of the most interest and importance therefore such deep studies could appropriately address hybrid criteria and be helpful in future investigations.
Revisiting competences of adult learning facilitators: Perspectives from the Mongolian context
Authors: Zagir Togtokhmaa , Dorner Helga
Published: March 2021

Competent adult learning facilitators play a vital role in improving the quality of adult learning programmes. This article thus explores common and core competences of adult learning facilitators from the perspective of key stakeholders, such as facilitators, adult learners and administrators. By synthesising previous international studies, we developed a survey and collected data in Mongolia ( n = 227). We identified adult learning facilitators’ common and core competences focusing on their teaching role. As found, areas of adult learners’ needs assessment, communication and motivation should be integrated in professional development programmes in order to aim for a better completion rate and higher participation of target audiences in adult learning programmes.
Using Co-Design to Create Community Advocacy for Biosecurity Behavior Change
Authors: Sherring Phill
Published: March 2021

Background:

New Zealand’s Ministry for Primary Industries (MPI) manages the “declare or dispose” biosecurity border compliance social marketing program. Its aim is to protect the country’s important horticulture and agriculture industries from imported pests and diseases, and its environment. The program encourages visitors to New Zealand to leave potential biosecurity risk items at home or dispose in specially marked bins on arrival. An important part of this is having New Zealand ethnic communities advocate on MPI’s behalf to friends and family overseas to follow the biosecurity rules. To fully engage the community to be advocates, it was felt that the community should be involved in the creation of this aspect of the program.

Focus of the article:

The article is a case study explaining how MPI used co-design methodology to create an advocacy program with a local community to assist behavior change in overseas visitors. The article focusses on the process and planning (including following a six-step co-design model) from a practitioners’ perspective to develop a program co-created with the target audience, rather than the final interventions developed.

Program design/approach:

The “declare or dispose” program had been solely “expert led” and designed by social marketers and researchers. The program is heavily influenced by a mix of quantitative and ethnographic research. These feed into customer journey mapping where interventions are inserted to influence audiences’ behavior. To assist in advocacy from the New Zealand Indian community to friends and family overseas, a customer led co-design process was developed to create community engagement and advocacy.

Methods:

MPI ran three co-design sessions involving members of local Indian community groups. The sessions used a mixture of card sorting and open discussion within small groups. The card sorting was used to review, and rate current interventions used in the behavior change program (including interventions both overseas direct to visitors and locally to community members). The open discussion asked participants to generate new ideas for potential new interventions to reach visitors.

Results:

Through the ranking of existing tools and participant suggestions of new ideas—MPI has developed an advocacy program that spans expert-led and user-led interventions. As hoped, the user-led suggestions were at a community-based level, resulting in a stronger buy-in from the community to deliver advocacy messages to overseas friends and family.

Recommendations for practice:

The article is useful for practitioners by detailing how to not only use co-design for creating new ideas, but also to evaluate existing ones to create a program blending both expert- and user-led interventions. MPI followed a six-step co-design process to organize its co-design program. This ensured that the right preparation was followed, sessions were effective, and the desired results of the program were achieved.
Research Progress and Application Prospects of Long Noncoding RNAs in Gastric Neoplasms
Authors: Tan Bibo , Li Fang , Chen Zihao , Li Yong
Published: March 2021

Long noncoding RNAs (lncRNAs) are noncoding RNAs longer than 200 nt that have almost no function for encoding proteins. As an important regulatory molecule of the human genome, lncRNAs play a regulatory role in the human body. LncRNAs have a variety of functions, such as signaling, guiding, baiting or scaffolding of functional proteins, and are closely related to tumor development. Gastric cancer is one of the most common malignant tumors. It has a high incidence, a low early diagnosis rate, and a poor prognosis, and it seriously threatens human health. Abnormal expression of lncRNAs can affect the occurrence, development, invasion and metastasis of gastric cancer. Therefore, lncRNAs are expected to become important biomarkers and new targets for the diagnosis and treatment of gastric cancer. LncRNAs have a significant potential to guide the diagnosis, treatment and prognosis of gastric cancer. This article reviews lncRNAs and the mechanisms that have been discovered in recent years related to gastrointestinal tumors.
All in the Family? Exploring the Intergenerational Transmission of Exposure to Adverse Childhood Experiences and Their Effect on Offending Behavior
Authors: Craig Jessica M. , Malvaso Catia , Farrington David P.
Published: March 2021

Research indicates that individuals with Adverse Childhood Experiences (ACEs) are more likely to offend, and that some ACEs, such as offending and child maltreatment, are transmitted from one generation to the next. However, the extent to which ACEs are transferred across generations and its subsequent impact on offending has not been examined. Using data from the Cambridge Study in Delinquent Development, this study examined the intergenerational transmission of ACEs and the extent to which this was associated with offending in the second generation. Although parental ACEs increased the likelihood of the subsequent generation’s ACEs, other risk factors attenuated this effect. Additionally, ACEs’ impact on the second generation’s convictions was also weakened after controlling for other risk factors. This provides evidence of intergenerational transmission of ACEs and additionally the effects of ACEs on the risk of offending. However, these associations are not straightforward and other risk factors likely play an important role in elucidating these relationships.
Mechanism and prediction models for interfacial shear separation of claddings excited by Love waves
Authors: Guo Feng , Wu Jiu Hui
Published: March 2021

The forced propagation solution of interfacial shear stress of multilayer cladding structure excited by Love waves is derived by the integral transformation method, and the shear resonance mechanism of interfacial separation is further revealed. The coupling resonance between the excitation frequency and structure intrinsic property causes the peak of interfacial shear stress amplitude, which results in interfacial shear separation at certain frequency bands. It is found that the coupling resonance frequency of interfacial shear stress is only dependent on the inherent properties of the structure, around which the frequency band of interfacial shear separation is formed. The coupling resonance frequency decreases with the increase of the cladding thickness or shear wave velocity difference between the cladding and substrate. The influence of cladding material parameters on interfacial shear stress is greater than that of matrix material parameters. The experimental results support the theoretical analysis results. The conclusions presented could have potential applications in ultrasonic deicing/defrosting/de-sanding and/or coatings protection.
Cold pain sensitivity is associated with single-nucleotide polymorphisms of PAR2/F2RL1 and TRPM8
Authors: Soeda Moe , Ohka Seii , Nishizawa Daisuke , Hasegawa Junko , Nakayama Kyoko , Ebata Yuko , Ichinohe Tatsuya , Fukuda Ken-ichi , Ikeda Kazutaka
Published: March 2021

Pain sensitivity differs individually, but the mechanisms and genetic factors that underlie these differences are not fully understood. To investigate genetic factors that are involved in sensing cold pain, we applied a cold-induced pain test and evaluated protease-activated receptor 2 (PAR2/F2RL1) and transient receptor potential melastatin 8 (TRPM8), which are related to pain. We statistically investigated the associations between genetic polymorphisms and cold pain sensitivity in 461 healthy patients who were scheduled to undergo cosmetic orthognathic surgery for mandibular prognathism. We found an association between cold pain sensitivity and the rs2243057 polymorphism of the PAR2 gene. We also found a significant association between cold pain sensitivity and the rs12992084 polymorphism of the TRPM8 gene. Carriers of the minor A allele of the rs2243057 polymorphism of PAR2 and minor C allele of the rs12992084 polymorphism of TRPM8 exhibited a longer latency to pain perception in the cold-induced pain test, reflecting a decrease in cold pain sensitivity. These results suggest that genetic polymorphisms of both PAR2 and TRPM8 are involved in individual differences in cold pain sensitivity.
Quotation errors related to the Distal Radius Acute Fracture Fixation Trial paper
Authors: Cay Peter , Leung Brook , Curlewis Keegan , Stone Andrew , Roper Tom , Ricketts David
Published: March 2021

Quotation error is an inaccuracy in the assertions made by authors when referencing another’s work. This study aimed to assess the quotation errors in articles referencing the Distal Radius Acute Fracture Fixation Trial (DRAFFT). A literature search was performed to identify all citations of DRAFFT from 2014 to 2020. The relevant publications were assessed by two reviewers using a validated framework of error classification. There were 83 articles containing references to DRAFFT. There was substantial agreement between the two reviewers (Kappa coefficient 0.66). We found 22/83 (28%) of articles contained an error, with one article containing two errors. There were 12 major errors, which were not substantiated by, were unrelated to or contradicted the findings of DRAFFT, and 11 minor errors, including numerical inaccuracies, oversimplification or generalization. This study highlights that a significant number of articles inaccurately quote DRAFFT. Authors and journals should consider checking the accuracy of key referenced statements.
Honouring Nancy Barnes, nee Brumbie (1927–2012), South Australia’s first qualified Aboriginal Kindergarten Director
Authors: Whitehead Kay , MacGill Belinda , Schulz Sam
Published: March 2021

To date, the work of Aboriginal early childhood educators in the mid-twentieth century has not been widely acknowledged. Nancy Barnes, nee Brumbie (1927–2012), exemplifies the strength and tenacity of Aboriginal Australians who had to negotiate their lives and work in white institutions and a society which denied them fundamental human rights. Nancy graduated from the Adelaide Kindergarten Training College in December 1956 as the first qualified Aboriginal kindergarten director in South Australia. Following on, she was the foundation director of Ida Standley Preschool in Alice Springs (1959–1962) then the first ‘regional director’ in the Kindergarten Union of South Australia. Based on traditional archival research and analysis of public documents and Barnes’ autobiography, the article begins with her childhood and youth as a domestic servant and then explores her career, political activism, experiences of racism and lifelong commitment to addressing inequalities between Aboriginal and white Australians through education.
Patient Satisfaction Following Hallux Rigidus Treatment With a Synthetic Cartilage Implant
Authors: Lee Wonyong , Wang Carol , Prat Dan , Wapner Keith L. , Chao Wen , Farber Daniel C.
Published: March 2021

Background

There remains no clear consensus on patient satisfaction and functional outcomes following synthetic cartilage implant (SCI) implantation for hallux rigidus. The purpose of this study was to review our experience at a single academic institution using an SCI for treatment of hallux rigidus.

Methods

A retrospective review was performed of patients who underwent the SCI procedure for treatment of hallux rigidus between January 2017 and May 2019. Functional outcomes were evaluated using Patient-Reported Outcome Measures Informational System (PROMIS)-10 scores as well as a survey investigating patient satisfaction, self-reported clinical improvement, and changes in sporting ability. Patients were divided into satisfied versus unsatisfied subgroups, and between-group differences in preoperative variables and complications were reviewed. A total of 90 patients (96 implants) were included in this study. The mean follow-up time was 26.4 months.

Results

In all, 81.2% of patients reported that their foot was “much improved” (55.2%) or “improved” (26.0%) since undergoing the SCI procedure, whereas a slightly lower percentage, 74.0%, stated that they were “extremely satisfied” (41.7%) or “satisfied” (32.3%) at final follow-up. Patients were able to tolerate higher impact sporting activities after the procedure, and 75.0% of patients stated they would have the same surgery again. PROMIS-10 T-scores averaged 54.2 points for physical health and 57.4 points for mental health. Only 2.1% of patients required conversion to arthrodesis. Significant differences between the satisfied versus unsatisfied subgroups were found in preoperative corticosteroid injection use (21.1% vs 41.1%, respectively; P = .029) and preoperative VAS pain score (8.2 vs 7.1, respectively; P = .036).

Conclusion

The SCI procedure can be a viable option for treating hallux rigidus with high satisfaction overall, increased sport activity levels, and a very low revision rate. However, maximizing patient satisfaction may require more careful consideration of preoperative prognosticators and extensive patient counseling to ensure realistic expectations for recovery time and individual outcome.

Level of Evidence:

Level IV: Retrospective case series
Pulmonary endarterectomy for chronic thromboembolic pulmonary hypertension: state‐of‐the‐art 2020
Authors: Madani Michael M.
Published: March 2021

Pulmonary endarterectomy is the treatment of choice for patients with operable chronic thromboembolic pulmonary hypertension (CTEPH) as it is potentially curative. In expert centers that conduct > 50 pulmonary endarterectomy procedures per year, peri‐ and post‐surgical mortality rates are very low and long‐term outcomes are excellent, with three‐year post‐operative survival of > 80%. Therapeutic decisions in CTEPH are based largely on the location of the arterial obstruction, with pulmonary endarterectomy for obstructions in main, lobar, and segmental vessels, and balloon pulmonary angioplasty and medical therapy for small‐vessel disease. Medical therapy is also an option for patients with persistent/recurrent pulmonary hypertension after pulmonary endarterectomy or balloon pulmonary angioplasty. With increasing surgical experience and improvements in instruments and procedures, an increasing number of patients are now considered operable who would previously have been inoperable, including some patients with subsegmental disease. At our University (University of California San Diego), around 200 pulmonary endarterectomy procedures are performed every year and several advances have been developed, including resection of more distal disease, availability of pulmonary endarterectomy to patients previously considered to be at too high risk for surgery, improved management of post‐pulmonary endarterectomy complications, and minimally invasive pulmonary endarterectomy. Pulmonary endarterectomy can be combined with other treatment modalities, including balloon pulmonary angioplasty, medical therapy for persistent/recurrent pulmonary hypertension after pulmonary endarterectomy, and medical therapy or balloon pulmonary angioplasty as bridging therapy before surgery. Data on these combinations are, however, limited. Combination treatment should therefore be considered on an individual patient basis. In the future, however, multimodal therapy with pulmonary endarterectomy, balloon pulmonary angioplasty, and/or medical therapy is likely to be an important treatment option for many patients.