bluuebunny/crossref_metadata_2025 huggingface dataset:
Reflexive Organization and Radicalized Modernity: Revisiting the Organization–Society Nexus
Authors: Windeler Arnold , Jungmann Robert
Published: December 2023

Organizations and societies have changed. Bureaucracy, as modernity’s form of organization, has transformed into a reflexive organization, coordinating the conditions of system reproduction in time–space with increased reflexivity. Simultaneously, modernity with capitalism, industrialization, and rationalization as its institutional dimensions radicalized; reflexive organizations as one of its driving forces and the reflexive organization as the new organization model. Today, reflexive organizations are the most ubiquitous and powerful agents in our societies, separating and integrating activities, practices, and occurrences in new time–space arrangements and sets of social systems together with others, fueling modernity’s dynamism and global scope and letting our societies resemble an engine without a driver, erratically running in directions we cannot foresee. To identify and understand these changes and their impact on our current world, we develop a research framework informed by Anthony Giddens’ structuration theory that upgrades social systems to the core of structuration theory and adds the reflexive mode of organization and a strategic perspective to Giddens’ theory of modernity.
Preparation and dielectric properties of polyimide-based composites with Al-Nb co-doped SiO2
Authors: Zhang Wenchao , Fu Qiang , Yuan Qixin , Li Han , Yue Dong , Feng Yu , Chen Qingguo , Yin Jinghua
Published: December 2023

Polyimide (PI) film have been synthesized and used extensively in energy transmission, wind power generation, new energy vehicles, lidar, and high-power weapons, et al. Nevertheless, it is still challenge to further improve the breakdown strength and dielectric constant of PI film. After the powders of Al0.5xNb0.5xSi1-xO2 (NASO (x mol%)) have been fabricated, it was analyzed that the effect of doping elements Al3+ and Nb5+ on the surface chemistry and microstructure of the NASO powder. And then a small amount of NASO powder was polymerized in situ with PI matrix material, and the effects of NASO on dielectric properties and breakdown strength of the NASO/PI composites were analyzed. The results showed that the introduction of the doping elements Al3+ and Nb5+ favors could be conductive to the formation of oxygen vacancies on the surface of the NASO particle, which improved the surface activity and chemical reactivity of the NASO particle. The PI matrix can efficiently capture additional charges and enhance the insulating characteristics of the NASO/PI composite by properly doping NASO fillers with specific defect concentrations. In the results the breakdown strength of 1 vol% NASO (1 mol%)/PI composites reaches 334.38 kV/mm, which is a 19.6% higher than that of PI. Because the traps in the fillers capture and suppress the carrier transport to enhance the insulating properties of the composites. This work offers a novel synthesis method to simultaneously produce polymer dielectrics with high insulation and high polarization.
Transient response feedback control for horizontal vibration of high-speed elevator car with prescribed performance
Authors: Su Xiaolei , Zhang Ruijun , He Qin , Qiu Tian , Liu Lixin
Published: December 2023

The high-speed elevator car is subject to violent horizontal vibration due to the wind pressure generated by the ventilation hole of the elevator rapid operation, improper adjustment of the gap and steps at the joint of the elevator car guide rail, pitting corrosion or wear on the guide surface of the guide shoe, inadequate installation and adjustment of the guide shoe or guide rail and so on. Aiming at the problems of poor transient convergence and real-time performance, low control accuracy and stability of the existing active control algorithm for the horizontal vibration control variables of the elevator car system, a transient response feedback control strategy with specified performance is proposed in this paper. Firstly, a six degree of freedom elevator car system model is established, and the state space equation is constructed based on the linear fractional transformation algorithm; Secondly, a class of preset transient performance function is introduced to construct the convergence boundary in advance to ensure that the system control variables are strictly constrained within this boundary, and the stability of the transformed variables is ensured by equivalent transformation; Finally, four different control methods including passive control, H2/H∞ control, PID control and transient response feedback control proposed in this paper are compared and analyzed by using MATLAB under two typical guideway excitation. The simulation results show that the proposed transient response feedback control strategy reduces the root mean square value and maximum value of the horizontal displacement acceleration of the elevator car system by more than 81%, effectively suppresses the horizontal vibration of the elevator car, and ensures the transient and steady-state performance of the elevator car system.
A novel Schönflies-motion generator parallel manipulator with decoupled rotational freedom
Authors: Gallardo-Alvarado Jaime , Alcaraz-Caracheo Luis A
Published: December 2023

This paper introduces a four-legged decoupled Schönflies-motion generator parallel manipulator, free of passive limbs, provided with three linear actuators and one rotary actuator. The displacement analysis problem leads to closed-form solutions, thus avoiding the application of numerical methods for their solution, an unusual feature for most parallel manipulators. Subsequently, the theory of screws allows for solving the velocity, acceleration, and jerk analyses. Canceling the passive joint rates of the limbs is an indisputable advantage of the reciprocal-screw algebra. Moreover, upon the velocity analysis, the singularity analysis of the parallel manipulator is carried out by investigating the nature of the Jacobian matrices of the parallel manipulator. Then, we conclude that the robot at hand is free of type I and III singularities. Numerical examples enhance the correctness of the kinematic analysis method employed in the contribution. As far as the authors are aware, the topology of the parallel manipulator investigated here is original.
Finite time disturbance observer design and Lyapunov-based control design for overhead cranes with double-pendulum dynamics
Authors: Li Fang , Wu Xianqing , Zhao Yijiang , Ke Liuting
Published: December 2023

In this paper, a novel disturbance observer and a Lyapunov-based control approach are developed for the crane control. For existing works, the assumption on the disturbances is strong and the motivation of these methods is to reject disturbances by feedback control. To tackle these problems, this paper proposes a novel composite control strategy consisting of a nonlinear control method and a finite time disturbance observer. Specifically, first, based on the system dynamic equations, a disturbance estimator is put forward, which can exactly identify the unknown disturbances in finite time. Next, an elaborate Lyapunov function is constructed and a disturbance-compensation-based control approach is presented for the overhead crane system with double-pendulum dynamics. Then, rigorous theoretical analysis is given to prove that all of the states of the closed-loop system asymptotically converge to the origin. At last, simulation tests are included to verify the effectiveness and robustness of the proposed method.
Adaptive fuzzy sliding mode control of the manipulator based on an improved super-twisting algorithm
Authors: Chen Jiqing , Zhang Haiyan , Tang Qingsong , Zhang Hongdu
Published: December 2023

The high-precision trajectory tracking and chatter-free performance of the manipulators are of great significance to the improvement of the automation level. Therefore, in view of the problems of chattering and tracking performance degradation of multi-joint manipulators caused by uncertain factors such as external disturbances and modeling errors, an adaptive fuzzy sliding mode control of the manipulator based on an improved super-twisting algorithm is proposed. First, fuzzy control is chosen to approximate the uncertainty of the manipulator model, which reduces the influence of unknown disturbances on the system, and then the adaptive law is utilized to automatically modify and improve the fuzzy rules to enhance the approximation capability; Second, an improved super-twisting algorithm is used on this basis to put the discontinuous term into the integral term to avoid chattering and eliminate the approximation error; Finally, a comparative simulation experiment is carried out with the 3-DOF manipulator as the research object. The experimental results show that the method in this paper improves the convergence speed by up to 69.74% and the tracking error accuracy by up to 85.11% over the fuzzy control based on adaptive reaching law with no chattering and little difference in control inputs, thus verifying the feasibility and superiority of the method.
Effects of using hydrogen on the exergetic and environmental damage performance of an UAV turbojet engine
Authors: Yucer Cem Tahsin , Nacakli Yavuz
Published: December 2023

In this study, the performance effects of using hydrogen instead of JP-8 fuel in an unmanned aerial vehicle (UAV) jet engine was investigated. Exergy analysis and environmental damage analysis were used to obtain performance parameters. These performance parameters were exergy destruction ratio, thrust-specific fuel consumption, air-to-fuel ratio, exergy efficiency, waste exergy ratio, environmental effect factor, sustainability index, and exergetic improvement potential values. Turbojet engine was operated at three different throttle settings (50%, 75%, and 100%) to examine the impact of different load types on the performance parameters. The results obtained by using JP-8 and hydrogen fuels at different throttle settings showed consistency. For all throttle settings, the highest exergy efficiencies took place in the nozzle as approximately 90%. On the other hand, the combustion chamber had the lowest exergy efficiencies for all conditions and took values between 30% and 40%. Calculated exergy destruction ratios indicated that the hydrogen use improved or saved the jet engine’s energy performance. Except the combustion chamber, compressor, turbine, and nozzle exergy destruction ratios decreased as 6.2%, 6.5%, and 10.8%, respectively. Moreover, the use of hydrogen fuel did not significantly change the performance parameters, in fact reduced the environmental impact approximately 113%. The findings indicated the potential benefits of hydrogen fuel use when compared to JP-8 fuel.
Buffering energy-absorbing performance of multi-cell octagonal biomimetic structure with cylinder and sinusoidal guide line
Authors: Zhao Tidong , Lin Qinyu , Chen Jinxiang
Published: December 2023

In order to explore the bionic buffering energy-absorbing structure with better development and research performance, two bionic structural models (called EBETS or MBETS) with sinusoidal guide line and cylinder located at the end or center of the octagonal side are designed in this paper. In comparison between these two models and models without sinusoidal guide line (EBET, MBET), we use the finite element method and study the crashworthiness and its mechanism of influence under different amplitudes (A) and wavenumber (N): (1) The trend characteristics of change of crashworthiness indicators of EBETS and MBETS with the increase of N or A were discovered in this paper. On this basis, new buffering energy-absorbing structure with better performance ( A = 0.5, N = 20) were proposed. (2) Compared to common multi-cell and single-cell buffering energy-absorbing structures, we can safely confirm that the structure has better energy-absorption performance and have its superiority as well. (3) Based on the advantages of 3D printing technology, it is proposed to replace the single-cell structure with appropriate EBETS or MBETS, and the selection method is given in this paper.
Study on low temperature starting strategy for high power density diesel engines
Authors: Zhang Hao , Zhu Wendi , Guo Yiqiao , Du Wei , Yang Xu , Mei Bingang
Published: December 2023

During low-temperature starting, the high viscosity and poor fluidity of diesel engine lubricating oil make it difficult to be timely replenished to the friction pair, leading to the problems of starting difficulties and wear during cold starting. To address this issue, this study completed a simulation verification work through a bench test, and carried out a transient simulation of lubricating system oil filling in the range of 1–5 s starting time and −20°C to 80°C lubricating oil temperature to obtain the transient filling characteristics of the lubrication system oil path and the friction characteristics of the bearing. The results show that extending the starting time can effectively reduce the average dry sliding speed of the bearing, thereby reducing the frictional wear of the critical friction pairs during starting; when the oil temperature is between 20°C and 30°C, the average dry sliding speed of the bearing is low and the dry sliding distance is the shortest. The research results of this study are conducive to in-depth analysis of the lubrication oil filling mechanism during cold starting, and to determine a reasonable cold starting strategy from the perspective of lubrication.
A review of coordinated control strategies for compound braking of electric vehicle ABS
Authors: Wang Zheyun , Zheng Yanping
Published: December 2023

In the case of compound braking, the dynamic coordination control strategy of electric vehicle ABS will directly affect the braking safety and the braking energy recovery. Based on the analysis of the compound braking control strategy of electric vehicle ABS, this review divides it into two categories: the single braking system control of ABS and the compound braking system control of ABS. The control strategy of ABS compound braking system is analyzed, according to the way of hydraulic control and motor control, it is divided into four categories: motor constant hydraulic coordination, hydraulic constant motor coordination, motor maximum hydraulic coordination, and motor hydraulic mutual coordination. The advantages and disadvantages of different control strategies are compared from the aspects of system response speed, stability, energy recovery rate, and complexity of system implementation. Considering the performance comprehensively, the analysis shows that the control strategy of motor hydraulic mutual coordination can give full play to the advantages of the two control systems, which is a better research direction.
Managed Care Models in India: An Investigation on the Ownership and Performance of Health Claims Management
Authors: Shetty Sham Ranjan , Chatterjee Debmallya , Pai Yogesh P.
Published: December 2023

Third-party administrators (TPAs), an important member of the managed care model in India, service health insurance claims and intermediate between health insurance companies, service providers and customers. Auditing TPA performance is not a prevalent industry practice because of a lack of regulation. This study explores the rationale behind the trend of insurance companies bringing TPA services in-house and investigates if the performance parameters for TPAs vary based on ownership. Analytical Hierarchy Process (AHP) was used to formulate the hierarchy of performance parameters for the TPA. Assessment of the efficiencies and quality of claims management between internal and external TPAs will enable insurance companies to make more informed decisions on managed healthcare models. Consequently, insurance premiums can be reduced, making health insurance a more viable option and could pave the way towards achieving the objective of universal health coverage. This study’s motivation stems from the possible impact that the performance evaluation of internal and external TPAs has on healthcare delivery, control and costs. The results show that both internal and external TPAs have their own efficiencies and advantages due to their operational models.
Appropriately Addressing Too Much Sitting as a Public Health Issue: Content Analysis of Coverage in the Five Major National Japanese Newspapers
Authors: Miyawaki Rina , Shibata Ai , Ishii Kaori , Owen Neville , Oka Koichiro
Published: December 2023

Recent international public health guidelines now address reducing and breaking up time spent sitting (sedentary behavior). Japanese people spend considerable time sitting in workplaces and other contexts. With potential future public health guidelines in Japan, there is the need for greater public awareness of the importance of reducing sedentary time and of practical ways to do so. From the five major Japanese national newspapers, articles on sedentary behavior published between 2000 and 2021 were identified and coded for content analysis, including the main topic of the article, population group, sedentary behavior context or domain, health outcome, and solutions for reducing sedentary time. There were 53 articles identified, with sedentary behavior being the main topic in 22; workers as a population group appeared in 20 articles and workplaces as a domain in 22. More than 70% mentioned health influences, but fewer than 60% mentioned solutions. Further to informing the public about adverse health influences and consequences for workers and workplaces, there is also the need for improved coverage of the broader benefits of reducing sitting time, sedentary behavior among older adults and children, sitting in all aspects of daily life, and, importantly, considering public health guidelines and solutions for reducing prolonged sitting.
A Commentary on Fasting of Nonclinical Research Animals
Authors: Gauvin David V. , McComb Margaret , Farero Ryan
Published: December 2023

This commentary discusses the implementation of fasting in nonclinical animal experimental subjects. The short-term removal of food from cages of experimental animals is in all respects innocuous. The term “stress” is ill-defined and the statutes and regulations governing animal research laboratories that exert their authority in the performance of their operations do so without substantive grounds to base compliance. The legislative and administrative history of the implementation of the Animal Welfare Act (AWA) has evolved into the development of laboratory management strategies that focus on the reduction of the biological cost of stress to the animals and the determination of when subclinical stress (eustress) becomes distress. Animal welfare is based on the tenet that in laboratories conducting animal research in compliance with Good Laboratory Practices (Title 21 USC, Chapter 13,§58), it is the study protocol and the study director that establish procedures and processes that are approved by each Institutional Animal Care and Use Committee to ensure the humane care and use of animals in research, teaching, and testing and to ensure compliance with guidelines and regulations. This approval process establishes the justification of eustress in the environment that do not rise to the threshold of distress under the AWA.
Common sense, populism, and reactionary politics on Twitter: An analysis of populist far-right common sense narratives between 2008 and 2022
Authors: Newth George , Scopelliti Alessio
Published: December 2023

Far-right parties often depict their ideas as ‘common sense’ and as self-evident, natural, just, and proper. This article examines the extent to which there is a uniform ‘far-right common sense’. Using a mixed-methods computational approach, we analysed Twitter posts mentioning ‘common sense’ from the accounts of far-right parties in the UK, France, Italy, and the USA between 2008 and 2022. Results from our comparative study suggest that uniformity in far-right constructions of common sense is limited by varying socio-economic/political contexts. Meanwhile, our analysis also opens the door for future research on the role of mainstream actors in the legitimisation of reactionary common sense narratives.
Awareness and usage of mobile applications as an orthodontic diagnostic tool among Croatian orthodontic clinicians
Authors: Markusi Matea , Blagec Tadeja , Šimunović Luka , Lapter Varga Marina , Meštrović Senka
Published: December 2023

Objective:

To assess the impact of gender and orthodontic qualification length on the awareness, knowledge and usage of orthodontic diagnostic mobile applications, non-diagnostic mobile applications and social media platforms among orthodontic clinicians.

Design:

Cross-sectional questionnaire-based study.

Setting:

The Republic of Croatia.

Participants:

A total of 92 orthodontic specialists, members of the Croatian Dental Chamber.

Methods:

This study was conducted using a questionnaire distributed via email to orthodontic clinicians between May and July 2022.

Results:

In total, 92 respondents were divided into groups according to sex and median orthodontic qualification length: more recently qualified (MRQ) with ⩽12 years; and longer qualified (LQ) with >12 years. Nearly one-third of respondents did not have any prior knowledge of mobile applications used as an orthodontic diagnostic tool. MRQ respondents were more interested in using mobile apps as opposed to computer software for digital analysis ( P < 0.05). This interest was in a negative correlation with orthodontic qualification length ( P < 0.01) and was more prevalent among female respondents ( P < 0.001). About one-third (32.6%) of respondents did not use non-diagnostic mobile applications and 44.6% did not use social media platforms. Nearly two-thirds (62%) of the respondents did not promote their work through social media. Male respondents and LQ promoted their work more frequently than others ( P < 0.05). The usage of other mobile applications was in a positive correlation with the knowledge and awareness of orthodontic mobile applications ( P < 0.05).

Conclusion:

Orthodontic clinicians lacked knowledge, awareness and the usage of orthodontic diagnostic mobile applications according to sex and orthodontic qualification length. One-third used non-diagnostic mobile applications and less than half used social platforms in daily clinical work.
Design and numerical study of foldable wing module of air-launched underwater glider
Authors: Wu Xiangcheng , Wang Qiang , Yu Pengyao , Zhang Chengyu
Published: December 2023

Launching underwater gliders by aircraft could greatly expand the application of underwater gliders. However, during the process of the glider entry into the water, it will be subjected to significant impact loads, especially during the process of wing entry into the water. In this paper, a foldable wing module is proposed to reduce the water entry impact loads of the glider caused by the wings entering into the water. The effect of the foldable wing module on impact loads reduction and the influence of the foldable wing module on the water entry trajectory are studied by numerical method. The results show that the differences in mass and gravity center position caused by the foldable wing module have little effect on the water entry impact loads of the glider until the wings impact the water. When the glider enters the water obliquely, the wing module reduces the peak radial acceleration of the glider. In addition, the trajectory and time of the glider to reach the horizontal attitude are also reduced. These conclusions will be helpful for the designing of the wings of air-launched underwater gliders.
Caregiving and role conflict distress
Authors: MacKenzie Jordan
Published: December 2023

When our nearest and dearest experience medical crises, we may need to step into caregiving roles. But in doing so, we may find that our new caregiving relationship is actually in tension with the loving relationship that motivated us towards care. What we owe and are entitled to as friends, spouses, and family members, can be different from what we owe and are entitled to as caregivers. For this reason, caregiving carries with it the risk of a type of moral distress that I call “role conflict distress.” Rather than view role conflict distress as a sign that we are falling short, I suggest that it actually speaks to the commitment that we have to the loving relationship that grounds our duty of care.
COVID-19 Risk Communication and Community Engagement (RCCE) in Malawi: Challenges and Response
Authors: Maganga Chiyembekezo Focus , Ngwira Flemmings Fishani , Gondwe Goodwin , Nyang’wa Bester , Kunkumbira Tobias
Published: December 2023

The outbreak of COVID-19 created a global health crisis that has impacted our everyday lives. Risk communication and community engagement (RCCE) is one of the strategic pillars the World Health Organization (WHO) recommends when dealing with public health emergencies like COVID-19. In Malawi, the COVID-19 RCCE response was coordinated by the country’s Ministry of Health and involved various organizations that distributed COVID-19 risk communication materials and engaged communities on important infection preventive practices. Furthermore, the Ministry of Information was involved in ensuring the messages were put across at national and subnational levels. Despite the efforts, most Malawians were reluctant to embrace set public health measures for COVID-19. Guided by a phenomenological approach, we used in-depth interviews with senior officials from 10 organizations, including the Ministry of Health, who were involved in RCCE response in Malawi, to understand the challenges that were faced in the implementation of RCCE activities in Malawi. We also reviewed project reports from three organizations, taken from the same implementing local organizations, to understand the experiences of implementing RCCE strategies in Malawi. We established that misconceptions, poor coordination, lack of political will, low-risk perceptions, and social norms undermined the response in Malawi. The results underscore the need for the authorities in Malawi to invest more in RCCE and strengthen the capacity to handle future epidemics. There is also a need to develop a national RCCE strategy with guidelines and protocols on methods of coordination, flow of communication, responsible ministry, tools for handling dis/misinformation and myths, and community engagement.
Rescue Strategy for Hemorrhagic Complication During Mechanical Thrombectomy and the Clinical Outcome
Authors: Wang Chao , Shi Mingchao , Li Chao , Wang Shouchun , Yang Yi
Published: December 2023

Purpose:

Hemorrhagic complications occasionally occur during mechanical thrombectomy and may lead to catastrophic outcomes. Therefore, remedial strategies require careful investigation. Herein, we aimed to evaluate a cohort of patients who experienced hemorrhage during endovascular procedures, the rescue methods used, and outcomes observed.

Method:

This prospective study included patients who had hemorrhagic complications observed on digital subtraction angiography (DSA) during mechanical thrombectomy, between October 2017 and October 2022, at a high-volume stroke center. Functional outcomes were assessed using the modified Rankin scale (mRS) score at a 90-day follow-up. The primary outcomes were favorable outcomes (mRS score: 0–2 points) and mortality rates. The secondary outcomes were rescue therapy success rates, according to extravasation observed on the final DSA, recanalization status, and causes of hemorrhage.

Results:

From October 2017 to October 2022, 1537 patients with stroke received emergency endovascular therapy, and 1147 patients completed a 90-day follow-up. Hemorrhage was observed in 33 (2.1%) patients in the process of endovascular interventions. Eighteen (54.5%) cases of hemorrhage were caused by microwire or microcatheter perforation. Mechanical stretching of the vessel during stent retriever withdrawal resulted in 8 (24.2%) cases of hemorrhage. Nine (27.3%) instances of hemorrhage stopped after the reversal of heparin administration and introduction of blood pressure control measures. Further endovascular rescue treatment was performed in 11 patients. Intracranial inflation of the balloon for tamponade stopped 10 hemorrhages, and 1 patient underwent additional coil embolization. Fifteen (45.5%) patients died within 90 days after the procedure. Three (9.1%) patients recovered functional independence (mRS score: 0–2 points) within 90 days.

Conclusion:

Hemorrhage during mechanical thrombectomy is a rare but severe complication of acute ischemic stroke with high mortality and disability rates. Intracranial inflation of a balloon for tamponade can effectively stop extravasation.

Clinical Impact

This paper described haemorrhagic events characterised by contrast extravasation in the procedure of mechanical thrombectomy due to various causes. Although this complication is rare, patients showed a high mortality and disability rate. There are limited reports available. We found self-limiting haemorrhage had a rather benign prognosis and balloon tamponade could effectively stop the extravasation and might reduce the death rate within 90d. The methods we adopted could be applied in the clinical practice and help neuro-interventionist cope with this complication more promptly and effectively
Endovascular Treatment of TASC C and D Femoropopliteal Arterial Disease With Heparin-Bonded Covered Stents: The Impact of Distal Run-Off Vessels
Authors: Barabino Emanuele , Nivolli Arianna , Pittaluga Giulia , Arnò Matteo , Gazzo Paolo , Tosques Michele , Ivaldi Diego
Published: December 2023

Introduction:

In the last 2 decades, several studies in the literature evaluated the possible role of covered stents in the treatment of TransAtlantic Inter-Society Consensus (TASC) C and D femoropopliteal lesions but, despite the encouraging results, the employment of these devices was never included in clinical guidelines. The aim of this study is to evaluate the role of the technical aspects in patients with TASC C or D lesions that were treated with the GORE VIABAHN endoprosthesis and to elaborate a computerized method to objectively estimate the post-stent run-off and predict stent-graft failure.

Materials and Methods:

In this monocentric retrospective study, we collected the patients who were treated in our department from December 2014 to May 2021. Inclusion criteria comprised: (1) patients who underwent endovascular treatment of a TASC C or D femoropopliteal lesions using one or more heparin-bonded covered stent(s) and (2) clinical follow-up >2 years. Exclusion criteria were clinical follow-up <2 years or missing. An in-house computerized analysis to estimate the post-stent run-off, CEVERO (Computerized Estimation of VEssel Run-Off), was elaborated.

Results:

Sixty-six patients were enrolled in the study. Eleven patients had a TASC type C lesion, and 55 patients presented a type D lesion. The median follow-up time was 2.6 years. Twenty-nine patients (43.9%) experienced a major adverse limb event. Primary patency after 6, 12 and 24 months was 74.2%, 60.6%, and 57.6%; primary-assisted patency was 78.8%, 65.2%, and 59.1%. The presence of <2 run-off vessels (p<0.001) was correlated with stent-graft failure. The CEVERO analysis demonstrated an accuracy of 90.0% in predicting stent-graft failure.

Conclusions:

The treatment of TASC C and D femoropopliteal lesions remains technically challenging. Our study supported the hypothesis that run-off is the most critical factor in determining the outcome of the procedure and that concomitant angioplasty of the tibial vessels might improve the patency of the covered stent. The CEVERO analysis could permit a real-time, objective estimation of the distal run-off using conventional angiographic images, and it might be employed as a tool in the intraprocedural decision-making process, but its clinical applicability should be evaluated on external validation cohorts.

Clinical Impact

The endovascular treatment of TASC C and D femoropopliteal lesions is technically challenging and run-off seems to be the most critical factor in determining the outcome. Concurrent angioplasty of the tibial vessels can create adequate run-off to avoid stent failure. The CEVERO analysis is a computerized estimation of run-off that might be a useful tool in the decision-making process.
Chinese multidisciplinary expert consensus on the management of adverse drug reactions associated with savolitinib
Authors: Zhang Li , Wang Yongsheng , Lin Lizhu , Yu Yongfeng , Lu Shun
Published: December 2023

Savolitinib is a highly selective mesenchymal-epithelial transition (MET) tyrosine kinase inhibitor (TKI). Based on its significant efficacy shown in clinical studies, savolitinib was conditionally approved for marketing in China on 22 June 2021, for the treatment of advanced non-small cell lung cancer (NSCLC) with MET 14 exon skipping mutation. Additionally, many studies showed that MET TKIs were equally effective in patients with advanced solid tumors with MET gene amplification or MET protein overexpression. Several relevant registered clinical studies are in progress. The most common adverse reactions (ARs) due to savolitinib administration are nausea, vomiting, peripheral edema, pyrexia, and hepatotoxicity. This consensus was developed through two rounds of extensive national surveys involving multidisciplinary experts in China, aiming to guide clinicians to prevent and treat various ARs scientifically, and improve the efficacy of the drug and the quality of life of patients.
Do Victims and Perpetrators Justify Intimate Partner Violence Even While They See It Happening in Front of Their Eyes?
Authors: Dannisworo Cantyo A. , Kluwer Esther S. , Arriaga Ximena B. , Faure Ruddy , Griep Yannick , Karremans Johan C.
Published: December 2023

When intimate partner violence occurs, both victims and perpetrators may justify the violence. However, efforts to understand justifying violence typically rely on written descriptions of violent acts or are assessed well after the violence has occurred. Do victims and perpetrators justify violence even while they see it happening? A novel paradigm addressed this question in two cross-sectional studies (Study 1, N = 535 and Study 2, N = 480). Using this paradigm, participants in the violent and non-violent relationships gave in-the-moment and continuous justification ratings (using a slider) as they watched video clip(s), each depicting a couple having a heated and violent fight. The results showed that participants who previously had experienced victimization or perpetration were more likely to justify the violence, both during and after watching the violent clips. This research provides new insights into the nature of violence justification and offers a novel paradigm for future studies.
Why Being Social and Active Boosts Psychological Wellbeing: A Mediating Role of Momentary Positive Emotions
Authors: Sun Rui , Teulings Irene , Sauter Disa
Published: December 2023

Social interactions and active activities are key to psychological wellbeing, but how do these activities improve wellbeing? Building on work showing that positive emotional experiences help build psychological resources, we test the prediction that momentary positive emotional experiences mediate the relationships between social interactions, active activities, and wellbeing. In a pre-registered experience sampling study, 106 participants reported their wellbeing, momentary emotional experiences, and activities linked to intense emotions five times per day for 15 days (7,110 observations). Participants reported experiencing more intense positive emotions when interacting with others (especially face-to-face), and when engaged in active (versus passive) activities. As predicted, positive emotional experiences partially mediated the positive relationships between social interactions and wellbeing, and between active activities and wellbeing (explaining 25% and 12% of variance, respectively). These findings show that intense emotional experiences can be elicited by social and active activities, helping explain how these activities aid our psychological wellbeing.
Embolization of cerebellar pial arteriovenous fistula presented with congestive edema of the brainstem and cervical cord
Authors: Zhou Zibo , Yu Jinlu
Published: December 2023

Cerebellar pial arteriovenous fistula (PAVF) in adults presenting with congestive edema of the brainstem and cervical cord has rarely been reported. Here, we report such a case. A 59-year-old man presented with progressive weakness and numbness of the limbs and hiccups for 6 months. On physical examination, his limbs had grade III muscle strength, and he was unable to stand or walk. He also had occasional incontinence and retention. There was a positive Babinski sign in both lower limbs. Below the neck, he had hypoesthesia of the skin. Magnetic resonance imaging (MRI) showed edema of the brainstem and upper cervical cord. Digital subtraction angiography (DSA) confirmed there was a cerebellar nongalenic-type PAVF lesion; the feeding arteries were the branches of the posterior inferior cerebellar artery (PICA); and the draining vein was a single cortical vein that ultimately entered the venous systems of the brainstem and upper cervical cord. Casting Onyx-18 via the PICA obliterated the PAVF. Postoperatively, the patient recovered gradually. Two and a half months later, he could walk using a crutch and had no incontinence. Six-month follow-up MRI and DSA revealed recession of the edema of the brainstem and cervical cord and no recurrence of this PAVF. One year later, he was nearly normal. In conclusion and extremely rarely, cerebellar nongalenic-type PAVF can present with congestive edema of the brainstem and high cervical cord. This treatment by Onyx-18 embolization can resolve PAVF.
Public relations, activism, and the culture of assertion: The case of Blackrock’s Larry Fink and the letter to the CEOs
Authors: Foust Joshua , St John Burton
Published: December 2023

This study argues that public relations scholarship on activism needs to better contextualize the ascendancy of non-dialogic, raw assertions in today’s public sphere. Analyzing 10 years of corporate communication by Blackrock CEO Larry Fink, we show how his corporate activist rhetoric suggests a growing disregard for dialogic communication, which is typically articulated within American public relations scholarship as a vital component in, for example, Grunig’s Excellence Theory and Heath’s rhetorical perspectives. This analysis of Fink’s communication further suggests the need for American public relations scholarship to move beyond a false binary between external and internal approaches to activism, which is further complicated by Fink’s seeming lack of interest in dialogic communication. Relatedly, we note that the mainstream conception of public relations as a consensus-oriented, good faith exchange seems at odds with the emerging reality of a societal disposition for mere assertions. We end with discussing theoretical implications regarding public relations’ ability to engage with stakeholder groups.
Feeling worried and powerless: A qualitative interview study of relatives’ experiences of the collaboration with patients and nurses during COVID-19 visiting restrictions in Denmark
Authors: Haslund-Thomsen Helle , Thorup Charlotte Brun , Laugesen Britt , Jørgensen Lone , Pedersen Birgith , Voldbjerg Siri Lygum , Nielsen Marie Germund , Jacobsen Sara , Kusk Kathrine Hoffmann , Albrechtsen Maja Thomsen , Bundgaard Karin , Grønkjær Mette , Lerbæk Birgitte
Published: December 2023

Relatives are an important resource to hospitalised patients and hence to nursing. During the COVID-19 pandemic, visiting restriction policies were implemented in healthcare settings globally, unwillingly excluding relatives from visiting the bedsides of their loved ones. The aim of the present study was to explore how the visiting restrictions influenced relatives’ relationships with patients and collaboration with registered nurses at non-pandemic hospital wards. In total, 13 relatives were interviewed. The study was reported following the COREQ guidelines and checklist. Content analysis led to three themes: 1) being excluded from providing care and support; 2) being excluded from conveying person-centred and situational relevant knowledge to registered nurses; and 3) being excluded from assessing the health status of the hospitalised loved one. Together they describe relatives feeling worried and powerless regarding the health of their hospitalised loved one and the performed nursing care. Findings from studies such as this are pivotal to any future national or global health crisis, where visiting restriction policies are implemented.
Empirical Analysis of Export Tax Rebate on Inwards Foreign Direct Investment in China
Authors: Li Bingqiang , Li Xi , Li Jinzhi , Lin Hongchun , Rui Baojuan
Published: December 2023

Export tax rebate (ETR) and inwards foreign direct investment (IFDI) are important driving forces for the steady development of China’s export-oriented economy. Based on data from 2004 to 2019, this study puts forward relevant assumptions on constructing a model for empirically analyzing the impact of the ETR on China’s IFDI from the perspective of the national and the sub-national. The result demonstrates that there exists a complementary relationship between the ETR and IFDI; the weak lag effect of ETR on IFDI in the eastern, middle, and western regions of China; an explicit impact on the performance in the western region, which lags behind only one period; and no significant lag effect of ETR on IFDI in developed, moderately developed, and underdeveloped regions. On the basis of this evaluation, the conclusion could be achieved that that ETR has a significant effect on IFDI, though there may be differences in the direction and value of the impact. The highlight of this research is to detect the impact of ETR on IFDI by taking China as a case, and achieved that there exist sub-national differences, including the geographical and development-level differences.
Enhancing Self-Leadership in Online Fitness Education and Training: Exploring Strategies and Addressing Challenges Among Social Media Influencers in Henan Province, China
Authors: Yangzi Zhang , Cheah Kenny S. L. , Shaharom Mohd Shahril Nizam Bin
Published: December 2023

The advent of social media platforms has brought about a paradigm shift in the dissemination of information, consequently giving rise to a new breed of individuals known as Social Media Influencers (SMIs). These SMIs have exerted a substantial influence on individuals and society as a whole. Within the domain of fitness education and training, the emergence of Social Media Influencers (SMIs) has significantly disrupted conventional approaches to disseminating information. The purpose of this study is to examine the SMIs’ practices of self-leadership and further explained in terms of their challenges, practices, and strategies of online fitness coaching. Qualitative interviews, coding, and thematic analysis were used to address three key research questions. From findings, these SMIs practice several contextual challenges; which include creating quality digital content, lack of creativity, low digital literacy, lack of financial, physical, and marketing skills, falling out of trends, designing unique programs, and adapting to changing environments. To overcome these challenges, SMIs practice self-leadership by upskilling in content and digital marketing, graphic design, and video-making, seeking constant feedback, leveraging word-of-mouth inquiries, and participating in trending workshops and interest groups. By effectively managing these challenges, SMIs can provide valuable fitness education to their audience and have a significant impact on promoting health and wellness.
Pulling the Lever: Supporting Critical Consciousness in Secondary Special Education and Transition
Authors: Sheftel Anya , Poppen Marcus , Brown Ruiz Amber
Published: December 2023

Youth with disabilities encounter multiple systemic barriers to post-school success, including racism and discrimination. Critical consciousness is the foundation of culturally responsive and anti-racist work and supports self-determination and vocational outcomes expectations among marginalized youth. While secondary special educators are interested in learning more about culturally responsive practices such as critical consciousness, they lack institutional support and resources to implement these practices. In this article, we present an ecologically based conceptual framework of Critical Consciousness in Secondary Special Education and Transition (CCSSET) to demonstrate how special education teacher preparation programs and school administrators can leverage funding, laws, policies, and resources to support critical consciousness among teachers and students. Implications for research and practice are discussed.
Navigating Challenges to Work-Based Learning Experiences: Responses From Special Educators
Authors: Brenner Hannah R. , Dymond Stacy K.
Published: December 2023

A host of challenges have been associated with providing work-based learning experiences (WBLEs) for students with disabilities; however, little is known about how special education teachers navigate or overcome these challenges. The purpose of this qualitative study therefore was to understand how special education teachers respond to the challenges they experience when providing WBLEs for students with extensive support needs. Participants included nine special education teachers who primarily serve 14- to 22-year-old students with extensive support needs. Each teacher participated in one semi-structured interview, and transcripts were analyzed using thematic analysis. Teachers reported responding to challenges by (a) creating authentic school-based work experiences, (b) providing direct support for students and families, (c) networking and building new connections, and (d) advocating for students in school and community contexts. Findings from this study have practical implications for special education teachers who provide WBLEs for students with extensive support needs.
2023 Roger A. Mann Award Winner: Younger Patients Undergoing Total Ankle Arthroplasty Experience Higher Complication Rates and Worse Functional Outcomes Scores
Authors: Anastasio Albert T. , Kim Billy I. , Wixted Colleen M. , DeOrio James K. , Nunley James A. , Easley Mark , Adams Samuel
Published: December 2023

Category:

Ankle Arthritis; Ankle

Introduction/Purpose:

Although many patients with postraumatic ankle arthritis are of a younger age, studies evaluating the impact of age on outcomes of primary total ankle arthroplasty (TAA) reveal heterogenous results. The purpose of this study is to determine the effect of age on complication rates and patient reported outcomes after TAA.

Methods:

This was a retrospective study of 1,185 primary TAA divided into 3 age cohorts (Age < 55, n=219; Age55-70, n=688; Age>70, n=278). Patient demographics, intraoperative variables, postoperative complications, and patient reported outcome measures were compared among groups using univariable analyses. Multivariable Cox regression was performed to assess risk for implant failure by age group. Mean follow-up was 5.7 years.

Results:

Compared to Age55-70 and Age>70 groups, Age < 55 patients had the lowest mean ASA score (2.2 vs 2.4 vs 2.5; p< 0.001) and highest rates of all complications (33.8% vs 23.1% vs 19.8%; p=0.001), implant failure (9.1% vs 6.0% vs 3.2%; p=0.022), and component removal (5.0% vs 2.8% vs 1.1%; p=0.030). Univariable and multivariable cox regression analysis revealed decreased risk for implant failure for Age>70 compared to Age < 55 patients (HR: 0.43 [95%CI: 0.19-0.94], p=0.034; and HR: 0.42 [95%CI: 0.18-0.95], p=0.038, respectively). Across the AOFAS Hindfoot and all FAOS subscales, Age < 55 group reported the lowest (worst) mean pre and postoperative scores (p < 0.001). The age < 55 group had the highest mean VAS score at final follow-up (22 vs 14 vs 14; p< 0.001).

Conclusion:

Studies involving large sample sizes with mid-to long-term follow up are critical to reveal age-related impacts on outcomes after TAA. Younger patients had higher rates of complications and implant failure and fared worse on patient reported outcome measures in the largest single-institution series to date evaluating the effect of age on outcomes in TAA.