bluuebunny/crossref_metadata_2025 huggingface dataset:
Hip Muscle Strength Explains Only 11% of the Improvement in HAGOS With an Intersegmental Approach to Successful Rehabilitation of Athletic Groin Pain
Authors: Baida Samuel R. , King Enda , Richter Chris , Gore Shane , Franklyn-Miller Andrew , Moran Kieran
Published: August 2021

Background:

Exercise-based rehabilitation targeting intersegmental control has high success rates and fast recovery times in the management of athletic groin pain (AGP). The influence of this approach on hip strength and lower limb reactive strength and how these measures compare with uninjured athletes (CON) remain unknown. Additionally, the efficacy of this program after return to play (RTP) has not been examined.

Purpose:

First, to examine differences in isometric hip strength, reactive strength, and the Hip and Groin Outcome Score (HAGOS) between the AGP and CON cohorts and after rehabilitation; second, to examine the relationship between the change in HAGOS and the change in strength variables after rehabilitation; last, to track HAGOS for 6 months after RTP.

Study Design:

Cohort study; Level of evidence, 2.

Methods:

A total of 42 athletes diagnosed with AGP and 36 matched controls completed baseline testing: isometric hip strength, lower limb reactive strength, and HAGOS. After rehabilitation, athletes with AGP were retested, and HAGOS was collected at 3 and 6 months after RTP.

Results:

In total, 36 athletes with AGP completed the program with an RTP time of 9.8 ± 3.0 weeks (mean ± SD). At baseline, these athletes had significantly lower isometric hip strength (abduction, adduction, flexion, extension, external rotation: d = –0.67 to −1.20), single-leg reactive strength ( d = −0.73), and HAGOS ( r = −0.74 to −0.89) as compared with the CON cohort. Hip strength ( d = −0.83 to −1.15) and reactive strength ( d = −0.30) improved with rehabilitation and were no longer significantly different between groups at RTP. HAGOS improvements were maintained or improved in athletes with AGP up to 6 months after RTP, although some subscales remained significantly lower than the CON group ( r = −0.35 to −0.51). Two linear regression features (hip abduction and external rotation) explained 11% of the variance in the HAGOS Sports and Recreation subscale.

Conclusion:

Athletes with AGP demonstrated isometric hip strength and reactive strength deficits that resolved after an intersegmental control rehabilitation program; however, improved hip strength explained only 11% of improvement in the Sports and Recreation subscale. HAGOS improvements after pain-free RTP were maintained at 6 months.
Return to Professional Australian Rules Football After Surgery for Traumatic Anterior Shoulder Instability
Authors: Perret Michael , Warby Sarah , Brais Godefroy , Hinse Stephanie , Hoy Sophie , Hoy Gregory
Published: August 2021

Background:

The treatment of traumatic anterior shoulder instability in professional Australian Football League (AFL) players is challenging, with an emphasis on early return to play and avoidance of instability recurrence.

Purpose:

To investigate return-to-sport (RTS) outcomes and complications after 2 different procedures for traumatic anterior shoulder instability in professional AFL players.

Study Design:

Cohort study; Level of evidence, 3.

Methods:

We retrospectively reviewed our surgical database for professional AFL players who underwent capsulolabral stabilization or open Latarjet procedure by a single surgeon between 2006 and 2017. Outcomes included RTS, on-field performance, and complications. Between-group analyses for RTS and complications were estimated using Kaplan-Meier survival analyses. Within-group analyses for on-field performance data were performed using paired t tests with significance set at .05.

Results:

A total of 58 capsulolabral stabilization procedures in 54 players and 32 Latarjet procedures in 29 players were included in the analysis; 93.1% of capsulolabral patients and 96.9% of Latarjet patients returned to professional AFL. The median RTS time was 6.8 months for the capsulolabral group and 7.3 months for the Latarjet group. There was no significant difference in RTS rates between the 2 groups ( P = .270). Of those undergoing surgery early in the season, 75% of the capsulolabral and 71% of Latarjet group were able to RTS within the same season, at a mean time of 16.9 weeks and 18.8 weeks, respectively. There was a significant difference in instability recurrence, with 19% for the capsulolabral group and no recurrence in the Latarjet group ( P = .017). There was no significant reduction in player on-field performance in either group ( P < .05).

Conclusion:

In this study, the median RTS in AFL players was approximately 7 months after capsulolabral and Latarjet surgery with no compromise to on-field performance. Instability-related complications occurred only in the capsulolabral group, and the incidence increased with time.
State-Level Implementation of Health and Safety Policies to Prevent Sudden Death and Catastrophic Injuries Within High Schools: An Update
Authors: Scarneo-Miller Samantha E. , Eason Christianne M. , Adams William M. , Stearns Rebecca L. , Casa Douglas J.
Published: August 2021

Background:

Mandated sports safety policies that incorporate evidence-based best practices have been shown to mitigate the risk of mortality and morbidity in sports. In 2017, a review of the state-level implementation of health and safety policies within high schools was released.

Purpose:

To provide an update on the assessment of the implementation of health and safety policies pertaining to the leading causes of death and catastrophic injuries in sports within high school athletics in the United States.

Study Design:

Cross-sectional study.

Methods:

A rubric composed of 5 equally weighted sections for sudden cardiac arrest, traumatic head injuries, exertional heatstroke, appropriate health care coverage, and emergency preparedness was utilized to assess an individual state’s policies. State high school athletic/activities association (SHSAA) policies, enacted legislation, and Department of Education policies were extensively reviewed for all 50 states and the District of Columbia between academic year (AY) 2016-2017 (AY16/17) and 2019-2020 (AY19/20). To meet the specific rubric criteria and be awarded credit, policies needed to be mandated by all SHSAA member schools. Weighted scores were tabulated to calculate an aggregate score with a minimum of 0 and a maximum of 100.

Results:

A total of 38 states had increased their rubric scores since AY16/17, with a mean increase of 5.57 ± 6.41 points. In AY19/20, scores ranged from 30.80 to 85.00 points compared with 23.00 to 78.75 points in AY16/17. Policies related to exertional heatstroke had the greatest change in scores (AY16/17 mean, 6.62 points; AY19/20 mean, 8.90 points; Δ = 2.28 points [11.40%]), followed by emergency preparedness (AY16/17 mean, 8.41 points; AY19/20 mean, 10.29 points; Δ = 1.88 points [9.40%]).

Conclusion:

A longitudinal review of state high school sports safety policies showed progress since AY16/17. A wide range in scores indicates that continued advocacy for the development and implementation of policies at the high school level is warranted.
The Circadian Clock, the Brain, and COVID-19: The Cases of Olfaction and the Timing of Sleep
Authors: Herz Rachel S. , Herzog Erik D. , Merrow Martha , Noya Sara B.
Published: August 2021

Daily rhythms of behavior and neurophysiology are integral to the circadian clocks of all animals. Examples of circadian clock regulation in the human brain include daily rhythms in sleep-wake, cognitive function, olfactory sensitivity, and risk for ischemic stroke, all of which overlap with symptoms displayed by many COVID-19 patients. Motivated by the relatively unexplored, yet pervasive, overlap between circadian functions and COVID-19 neurological symptoms, this perspective piece uses daily variations in the sense of smell and the timing of sleep and wakefulness as illustrative examples. We propose that time-stamping clinical data and testing may expand and refine diagnosis and treatment of COVID-19.
Survival of COVID-19 Patients With Respiratory Failure is Related to Temporal Changes in Gas Exchange and Mechanical Ventilation
Authors: Ende Victoria J. , Singh Gurinder , Babatsikos Ioannis , Hou Wei , Li Haifang , Thode Henry C. , Singer Adam J. , Duong Tim Q. , Richman Paul S.
Published: August 2021

Background: Respiratory failure due to coronavirus disease of 2019 (COVID-19) often presents with worsening gas exchange over a period of days. Once patients require mechanical ventilation (MV), the temporal change in gas exchange and its relation to clinical outcome is poorly described. We investigated whether gas exchange over the first 5 days of MV is associated with mortality and ventilator-free days at 28 days in COVID-19. Methods: In a cohort of 294 COVID-19 patients, we used data during the first 5 days of MV to calculate 4 daily respiratory scores: PaO2/FiO2 (P/F), oxygenation index (OI), ventilatory ratio (VR), and Murray lung injury score. The association between these scores at early (days 1-3) and late (days 4-5) time points with mortality was evaluated using logistic regression, adjusted for demographics. Correlation with ventilator-free days was assessed (Spearman rank-order coefficients). Results: Overall mortality was 47.6%. Nonsurvivors were older ( P < .0001), more male ( P = .029), with more preexisting cardiopulmonary disease compared to survivors. Mean PaO2 and PaCO2 were similar during this timeframe. However, by days 4 to 5 values for all airway pressures and FiO2 had diverged, trending lower in survivors and higher in nonsurvivors. The most substantial between-group difference was the temporal change in OI, improving 15% in survivors and worsening 11% in nonsurvivors ( P < .05). The adjusted mortality OR was significant for age (1.819, P = .001), OI at days 4 to 5 (2.26, P = .002), and OI percent change (1.90, P = .02). The number of ventilator-free days correlated significantly with late VR (−0.166, P < .05), early and late OI (−0.216, P < .01; −0.278, P < .01, respectively) and early and late P/F (0.158, P < .05; 0.283, P < .01, respectively). Conclusion: Nonsurvivors of COVID-19 needed increasing intensity of MV to sustain gas exchange over the first 5 days, unlike survivors. Temporal change OI, reflecting both PaO2 and the intensity of MV, is a potential marker of outcome in respiratory failure due to COVID-19.
Walls, Cracks and Change: The Challenges and Opportunities of Critically Engaged Research Within Current Academic and Refugee Research Structures
Authors: Rast Maria Charlotte
Published: August 2021

Many consider academic research an important means to address societal inequality of marginalized groups, such as refugees. However, transformative research arguably requires critically engaged practices that consider and transform dominant exclusive structures permeating both society and knowledge production. This paper discusses challenges and opportunities of such research practices, especially given power and (neoliberal) politics around knowledge production within Dutch academic and refugee research structures. Based on 14 researchers’ narratives, the results reveal how critically engaged refugee research is challenged by its marginalized position, academic pressures and culture as well as the recently emerged ‘refugee research business’. However, the paper also uncovers various ways in which researchers manoeuvre within challenging and facilitating structures by operating outside or in the margins of academic structures, making use of facilitating spaces and strategically employing dominant discourses. Finally, researchers arguably transform academic structures by challenging dominant research paradigms and transforming the institution of academics itself.
Variation Among Infectious Diseases Pharmacists for the Treatment of Staphylococcus aureus Bacteremia
Authors: White Bryan P. , Barber Katie E. , Chastain Daniel B.
Published: August 2021

Introduction: Staphylococcus aureus bacteremia (SAB) remains complex, in that optimal treatment for patients, including complicated or persistent infection, remains unclear. Two recent surveys have demonstrated practice variations in SAB among infectious diseases (ID) physicians. Objectives: The purpose of this survey was to examine practice variations in SAB among ID pharmacists. Methods: A thirty-five-question survey was electronically distributed to the American College of Clinical Pharmacy (ACCP) Infectious Diseases Practice and Research Network (IDPRN) in Fall 2019 to determine differences in SAB management. Data were analyzed utilizing Pearson’s Chi-Square or Fisher’s Exact Test. Results: A total of 106 ID pharmacists responded. Only 28% of pharmacists practiced at hospitals with mandatory ID consultation for SAB. A majority (75%) had rapid diagnostic technology (RDT) for identifying SABSI, but 32% of those facilities with RDT did not notify pharmacy with results. Anti-staphylococcal penicillins were preferred for MSSA blood stream infections (BSI) in patients with central nervous system infection and endocarditis, whereas cefazolin was favored for other MSSA BSI. For persistent MRSA BSI, 34% selected daptomycin alone while 38% elected to combine daptomycin and ceftaroline. Pharmacists at hospitals less than 500 beds were more likely to use daptomycin, while those at larger hospitals were more likely to use daptomycin and ceftaroline for persistent MRSA BSI ( P < .05). Conclusions: A survey of ID pharmacists showed variation in the management of SABs, as well as the definition and treatment of persistent SAB. Mandatory ID consultation and RDT use to improve SAB management have not been optimized.
Numerical investigation of the diffuser throat length effect on a transonic centrifugal compressor
Authors: Li Qingkuo , Zhang Yingjie , Wang Yi , Han Ge , Zhang Yanfeng , Lu Xingen
Published: August 2021

Vaned diffuser inlet flow uniform is challenging when the impeller is throttled to stall. In this study, we extend the stable operating range of the compressor by improving the uniform flow of the diffuser inlet. First, a numerical investigation of a transonic centrifugal compressor with a vaned diffuser is presented and compared against test data. Then, a new diffuser parameterization method is pro- posed, and the throat feature of a pipe diffuser is successfully applied to parameterized vane diffusers. The influence of the throat length and divergence angle of the diffuser on the performance of the centrifugal compressor is studied via steady and non-linear harmonic simulations. Throat length delays the time of fluid pressurization and accommodates large flow instabilities from upstream—this widens the stall margin but increases mixing loss. Divergence angle affects compressor performance. Stage peak efficiency increases by about 0.58% as the divergence angle increases from 3.79° to 5.79° but drops to about 2.46% as the divergence angle further increases from 5.79° to 11.79°. This is because the boundary layers in the diffuser channel thicken with increasing divergence angle; additionally, the fluid near the hub-pressure side first becomes unstable, then flow separation occurs along the flow direction, which results in a large flow loss. Detailed performance maps of centrifugal compressors with different throat lengths and divergence angles are given to provide a reference for designing transonic centrifugal compressors.
Dynamic modeling and optimized trajectory tracking control of an autonomous tracked vehicle via backstepping and sliding mode control
Authors: Sabiha Ahmed D , Kamel Mohamed A , Said Ehab , Hussein Wessam M
Published: August 2021

This article presents a complete kinematic and dynamic modeling and trajectory tracking control of an autonomous tracked vehicle. First, based on the vehicle’s kinematics, the reference linear and angular velocities are evaluated. The kinematic controller is proposed as an integrated backstepping controller. Then, based on vehicle dynamics and slipping characteristics, an integral sliding mode control is utilized to get the desired vehicle drive torques and converge its trajectory to the desired one. Whereas the controller gains are optimally calculated. Furthermore, based on the Lyapunov stability, the proof of stability for proposed controllers is presented. Finally, simulation results are conducted to validate the effectiveness of the proposed control algorithm compared with a hybrid backstepping-modified proportional–integral–derivative dynamic controller and a nonlinear feedback acceleration controller.
New evidence for active talus-foot rock glaciers at Øyberget, southern Norway, and their development during the Holocene
Authors: Nesje Atle , Matthews John A , Linge Henriette , Bredal Marie , Wilson Peter , Winkler Stefan
Published: August 2021

Synthetic aperture radar interferometry (InSAR) measurements demonstrate that lobate, blocky depositional landforms, located in southern Norway at an altitude of ~530 m above sea level, with an estimated mean annual air temperature of ~1.6°C, currently exhibit deformation attributed to viscous creep. Five years of InSAR measurements for six lobes demonstrate average surface velocities of 1.2–22.0 mm/year with maximum rates of 17.5–55.6 mm/year. New Schmidt-hammer exposure-age dating (SHD) of two proximal lobes reveals mid-Holocene ages (7.6 ± 1.3 ka and 6.0 ± 1.2 ka), which contrast with the early-Holocene SHD and 10Be ages obtained previously from distal lobes, and late-Holocene SHD ages presented here from two adjacent talus slopes (2.3 ± 1.0 ka and 2.4 ± 1.0 ka). Although passive transport of boulders on the surfaces of these small, slow-moving rock glaciers affected by compressive flow means that the exposure ages are close to minimum estimates of the time elapsed since lobe inception, disturbance of boulders on rock glaciers is a source of potentially serious underestimates of rock-glacier age. Rock-glacier development at Øyberget began shortly after local deglaciation around 10 ka before present and continued throughout the Holocene in response to microclimatic undercooling within the coarse blocky surface layer of the talus and rock-glacier lobes. We suggest this enhanced cooling lowers mean annual surface-layer temperature by at least ~3.6°C, which is needed at such a low altitude to sustain sporadic permafrost and avoid fast thawing as atmospheric temperatures rise. Our results point to circumstances where inferences about rock glaciers as indicators of regional climate should be interpreted with caution, and where they may be less useful in palaeoclimatic reconstruction than previously thought.
Future uncertainties for preserving tweets: Peoples’ perceptions in Japan
Authors: Shiozaki Ryo
Published: August 2021

Social media content includes an unprecedented number of personal documents reflecting our time. Few countries or regions have established legal grounds for securing long-term access to these documents, while paper-based publications have been exhaustively accumulated under legal deposit systems. However, archiving social media through national libraries, as a sort of state intervention, could bring about chilling effects on free speech in unexpected ways. The article aims to present empirical data of public concerns concerning social media content, focusing on Twitter’s public tweets archived by third parties, through two questionnaire surveys involving university students (Research I) and the public (Research II). The surveys were designed based on three settings: researchers, organisations to which the respondents belong and the National Diet Library in Japan. Consequently, approximately 30% and 47% of the respondents in Research I ( n = 197) and II ( n = 728), respectively, disagreed with any hypothetical scenario. An ordered logistic analysis to reveal the inter-relations of variables suggests the existence of other factors; thus, neither variables related to Twitter/Internet use nor demographic variables influenced people’s perceptions of the archival issue. While protecting privacy rights and copyrights was the primary reason for disagreements regarding third-party archival of tweets, many respondents intuitively displayed a negative reaction without any specific reason. Those who question its value and feel uncomfortable with an authoritative intervention were also identified. To nurture acceptant attitudes, advocating the archival of personal documents and adopting more restrictive archival procedures like taking down posts and anonymisation, public debates on the intervention of public bodies and demonstration of archival values should be considered.
Does midwifery-led care demonstrate care ethics: A template analysis
Authors: Buchanan Kate , Newnham Elizabeth , Ireson Deborah , Davison Clare , Bayes Sara
Published: August 2021

Background:

Ethical care in maternity is fundamental to providing care that both prevents harm and does good, and yet, there is growing acknowledgement that disrespect and abuse routinely occur in this context, which indicates that current ethical frameworks are not adequate. Care ethics offers an alternative to the traditional biomedical ethical principles.

Research aim:

The aim of the study was to determine whether a correlation exists between midwifery-led care and care ethics as an important first step in an action research project.

Research design:

Template analysis was chosen for this part of the action research. Template analysis is a design that tests theory against empirical data, which requires pre-set codes.

Participants and context:

A priori codes that represent midwifery-led care were generated by a stakeholder consultative group of nine childbearing women using nominal group technique, collected in Perth, Western Australia. The a priori codes were applied to a predesigned template with four domains of care ethics.

Ethical considerations:

Ethics approval was granted by the Edith Cowan University research ethics committee REMS no. 2019-00296-Buchanan.

Findings:

The participants generated eight a priori codes representing ethical midwifery care, such as: 1.1 Relationship with Midwife; 1.2 Woman-centred care; 2.1 Trust women’s bodies and abilities; 2.2. Protect normal physiological birth; 3.1. Information provision; 3.2. Respect autonomy; 4.1. Birth culture of fear (midwifery-led care counter-cultural) and 4.2. Recognition of rite of passage. The a priori codes were mapped to the care ethics template. The template analysis found that midwifery-led care does indeed demonstrate care ethics.

Discussion:

Care ethics takes into consideration what principle-based bioethics have previously overlooked: relationship, context and power.

Conclusion:

Midwifery-led care has been determined in this study to demonstrate care ethics, which suggest that further research is defensible with the view that it could be incorporated into the ethical codes and conduct for the midwifery profession.
Community Safety Behavior in Response to Coronavirus Pandemic
Authors: Khan Ruqia , Fatima Tayyba , Ramayah Thurasamy , Awan Tahir M. , Kayani Zakia K.
Published: August 2021

The purpose of this study is to explore the behavior and lifestyle of individuals in response to the coronavirus that the safety behavior of people in the coronavirus disease of 2019 pandemic. Hence, the study integrates the theory of planned behavior and the health belief model to understand the behavioral change in response to the coronavirus pandemic. The current study is qualitative therefore, a survey-based online questionnaire was used for data collection from university students and staff (faculty and nonfaculty) residing in top-tier cities of Pakistan, nonprobability convenient sampling was used to approach the audience. A two-stage approach was used to test the model using partial least square (variance-based structural equation modeling). The reliability and validity of the measurement model indicate that the data is reliable and valid. Outcomes prove all the relationships as proposed by the study, except for the impact of perceived barriers on intention and individual safety behavior. Perceived barriers act as obstacles that abstain individuals from following the standard operating procedures. The research agenda provides new insights into the fields of marketing, health care, consumer behavior, and behavioral studies. It contributes to the existing literature in the field of social marketing by studying the behavior and changes in the behavior of people in the global pandemic.
A Clinical Report Utilizing the VITOM 3D® Microvideoscope for Cleft Palate Repair
Authors: Meier Peter J. , Copson Douglas G. , Gillett David A.
Published: August 2021

Cleft palate surgery has traditionally presented numerous problems for cleft surgeons including ergonomics, limited visual fields restricting the opportunity for demonstration and teaching. Additionally, the move toward online teaching means the ability to record or livestream video is paramount. The following report of eight cleft palate repairs highlights the novel use of the Vitom 3D® microvideoscope as an innovative technique for cleft palate repair with our early experience demonstrating significant ergonomic and teaching benefits.
Adolescent Characteristics, Suicide, and Bullying in High School
Authors: Blakeslee Terese , Snethen Julia , Schiffman Rachel F. , Gwon Seok Hyun , Sapp Marty , Kelber Sheryl
Published: August 2021

Youth Risk Behavior Survey 2011–2017 data were examined for associations among high school population subsets who self-reported suicide risk behaviors and experiences with bullying. High-school students who reported suicidal risk behaviors were 4.64 times more likely to have experienced bullying electronically. Ninth grade and female students were more likely than others to experience suicide risk behaviors and bullying. At the interpersonal level, school nurses are able to identify students who are experiencing bullying and who exhibit suicide risk behaviors. At the systems level, bullying prevention efforts should target all students. School nurses, administrators, policy makers, and health providers should consider data-driven recommendations in bullying prevention programs.
Factors That Influence Substance Use Among American Indian/Alaskan Native Youth: A Systematic Mixed Studies Review
Authors: Woods Cedric , Kim BoRam , Guo Kristine , Nyguen Tuyet , Taplayan Sarin , Aronowitz Teri
Published: August 2021

Background:

The American Indian/Alaskan Native (AI/AN) mortality rate from illicit drug use was 22.7%, double that of the general population between 2007 and 2009. Fifteen percent of AI/AN youth reported receiving treatment for substance use compared with 10% of non-AI/AN peers.

Objective:

The purpose was to explore the factors that influence substance use among AI/AN youth.

Method:

We performed a systematic review using a results-based convergent synthesis design. Eight electronic databases were searched for articles published between 2014 and 2019 using the search terms “Native American youth,” “Native American adolescent,” “Native Youth,” “substance use,” “substance misuse,” and “substance abuse.” The Mixed Methods Appraisal Tool was used to appraise the studies.

Results:

Forty-seven studies met the inclusion criteria (44 quantitative, one qualitative, and two mixed-methods studies). The results were organized using the ecological systems model and included evaluation of both protective and risk factors related to AI/AN youth substance use. Three system levels were found to influence substance use: individual, micro- and macrosystems. The individual systems-level coping mechanisms played a key role in whether AI/AN youth initiated substance use. Family, school, and peer factors influence the microsystem level. At the macrosystem level, community environmental factors were influential.

Conclusion:

The major factor linking all the systems was the influence of a connected relationship with a prosocial adult who instilled future aspirations and a positive cultural identity. Findings of this systematic mixed studies review will assist in intervention development for AI/AN youth to prevent substance misuse.
A comparison of accuracy and safety between stem-first and cup-first total hip arthroplasty: a prospective randomised controlled trial
Authors: Iwakiri Kentaro , Ohta Yoichi , Minoda Yukihide , Kobayashi Akio , Nakamura Hiroaki
Published: August 2021

Background:

The combined anteversion theory to prevent impingement in total hip arthroplasty (THA) has been proposed. However, because stem-anteversion is influenced by the native femoral anteversion and the stem flexion/extension angle, it is often difficult to adjust stem anteversion during surgery. Therefore, the stem-first (combined anteversion) technique may be useful to adjust and achieve appropriate cup anteversion during surgery with respect to the implanted stem anteversion angle. However, the technique may adversely affect cup or stem angle accuracy and result in intra-operative bleeding, post-operative adverse events, and prolonged operative time. It is inconclusive whether either the stem-first or cup-first technique is safe or accurate. Therefore, this study assessed the accuracy and safety of stem-first THA compared to those of cup-first THA.

Materials and methods:

This prospective randomised controlled trial analysed 114 patients who were randomly divided into 2 groups (stem-first group: n = 57, cup-first group (control group): n = 57). Primary outcomes included cup and stem angle, the discrepancies from the targeted angle and combined anteversion (evaluated via CT at 3 months postoperatively). Secondary outcomes included intraoperative blood loss, operative time, WOMAC, and adverse events.

Results:

There were no significant differences in age, gender, BMI or in the primary and secondary outcomes between the 2 groups.

Conclusions:

Performing stem-first in THA did not adversely affect cup and stem angle accuracy, or result in intraoperative bleeding, prolongation of operative time, or postoperative adverse events. Thus, performing stem-first may be advantageous for achieving combined anteversion theory.

Trial registration:

University Hospital Medical Information Network (UMIN) registration number UMIN000025189.
Minimally invasive peritoneal dialysis catheter insertions with concomitant cholecystectomy or hernioplasty: Surgical technique and our experiences
Authors: Janež Jurij , Škapin Armand Dominik
Published: August 2021

Introduction:

Peritoneal dialysis is a well-accepted replacement therapy in patients with end-stage renal disease. There are many different options adopted on how to insert a peritoneal dialysis catheter. In our institution, a laparoscopic insertion has become the method of choice for providing peritoneal dialysis access in adult patients. The aim of this study was to analyze surgical outcomes of patients after laparoscopically assisted placement of a PD catheter some of them after concomitant cholecystectomy or hernioplasty.

Methods:

We have evaluated 70 consecutive patients from 1st of October 2015 to 30th of April 2020 who underwent laparoscopic insertion of a peritoneal dialysis catheter. Demographic data, details about surgery and about peri- and postoperative complications were gathered.

Results:

Out of 70 enrolled patients, 15 had gallstones (21%) and underwent concomitant laparoscopic cholecystectomy. Three patients (4%) had abdominal wall hernia and underwent concomitant hernioplasty. We observed no perioperative complications connected with any of the performed procedures. There was one early postoperative complication: an early leak of dialysate fluid. Late complications were observed in nine patients (13%): mechanical catheter problems (two patients), peritonitis (three patients), skin exit-site infections (two patients), peri-catheter leak (one patient), and port-site hernia (one patient).

Conclusions:

For all patients with concomitant gallbladder disease or abdominal wall hernias we suggest to perform synchronous surgeries, due to finding no more complications after concomitant procedures in comparison to patients in whom only a PD catheter was inserted. Concomitant procedures are done to spare patients two separate procedures and to avoid possible complications. We also suggest using the cholecystectomy first, PD catheter insertion second approach for having excellent peri- and postoperative results.
A totally implantable venous access device (TIVAD) abandoned for 5 years is re-accessed normally: A case report and literature review
Authors: He Jiaobo
Published: August 2021

Regular flushing and locking of totally implantable venous access devices (TIVADs) is recommended to maintain their patency when not in use. In this case report, a 73-year-old male patient received radical resection for rectal carcinoma in January 2010. A TIVAD was implanted in 2014 and a total of 12 rounds of chemotherapy of FOLFIRI was completed in 2015. During the period from 2015 to 2020, the patient never used or conducted the monthly infusion port flushing because of the inconvenience, the COVID-19 pandemic, and so on. On 18th April 2020, the patient was admitted to the radiotherapy department of Yiwu Central Hospital. The nurse evaluated the TIVAD upon admission, finding that the skin around the reservoir was normal without any sign of infection as erythema or induration of the skin overlying the implantable port but there was intraluminal occlusion of the devices. In order to re-access the catheter, discussion of a MDT was performed and several days of unremitting efforts were tried. Gratifyingly, the patient’s port was re-accessed successfully without any adverse reactions. This is a rare infusion port that has not been used and maintained for 5 years. For the port that has not been used and maintained for a long time up to 5 years, the medical staff should not give up easily. During the COVID-19 pandemic, prolonging the flushing interval of TIVADs can be an optimal clinical strategy without negative outcomes.
Forecasting hotel room demand amid COVID-19
Authors: Zhang Hanyuan , Lu Jiangping
Published: August 2021

The COVID-19 pandemic has hindered international travel considerably, greatly affecting the hotel industry. Hong Kong, as a well-known international tourist destination, has also been hit hard by the crisis. Recovery forecasts for hotel room demand are critical to managing this ongoing crisis. This study employs the autoregressive distributed lag error correction model to generate baseline forecasts of hotel room demand for Hong Kong followed by compound scenario analysis to optimize forecasts considering the pandemic’s impacts. The COVID-19 Travelable Index is designed to group source markets by their pandemic situations, vaccinations, policy responses, and health resilience. To capture pandemic-related uncertainty, this study presents three scenarios describing recovery patterns based on trough duration, the quarter for lifting travel restrictions, and the quarter for returning to baseline forecasts. Hotel demand forecasts geared toward each source market are analyzed, revealing strategies to help hotel businesses manage this crisis.
Looking professional: How women decide what to wear with and through automated technologies
Authors: Horst Heather A , Baylosis Cherry , Mohammid Sheba
Published: August 2021

From innovations such as virtual fit through 3D body scanning, smart clothes, wearable technology and virtual styling assistants to more mundane capabilities such as digital photography and social media, deciding what to wear and how to wear an item is now accompanied by a range of new information and perspectives. This article examines the sociotechnical systems that support everyday decisions about what to wear, and how this decision-making process is being re-imagined in response to technology. Drawing upon closet ethnographies with women in the USA and Australia, we focus upon the ways in which women make decisions about what will help them to ‘look professional’. Specifically, we attend to two key dimensions of the decision-making process – visions and validations – to understand the ways in which women weigh the opinion of other people, media and technologies, and the real and imagined role of how new technologies such as the Amazon Echo Look may be integrated into this process. Through fine-grained analysis of the ways that women receive, reject or ignore information about their performance of looking professional, we reflect upon the relative importance of different technologies in the process of decision-making.
First-in-human experience of the Bashir Endovascular Catheter in the treatment of iliocaval deep vein thrombosis
Authors: Al-Otaibi Mohamad , Shah Neal B , Iftikhar Omer , Sharma Prateek , Rao Koneti , Bashir Riyaz , Lakhter Vladimir
Published: August 2021

Deep vein thrombosis (DVT) is a common disorder affecting approximately 900,000 new patients in the United States each year. Although the mainstay of treatment of DVT patients is therapeutic anticoagulation, some patients remain significantly symptomatic and therefore require more advanced interventions such as catheter-directed thrombolysis (CDT). We describe a case series of 13 patients with acute symptomatic inferior vena cava (IVC) and iliofemoral DVT that were treated with CDT using the Bashir Endovascular Catheter (BEC). We report the first-in-human use of BEC, which is a novel pharmacomechanical thrombolysis device. All the treated patients had complete and rapid resolution of their symptoms with excellent venous outflow. Despite initial promising results, larger studies using this catheter design will be needed to assess the role of BEC-directed therapy on rates of post-thrombotic syndrome and bleeding complications.
An optimized metamodel for predicting damage and oil outflow in tanker collision accidents
Authors: Das Tanmoy , Goerlandt Floris , Tabri Kristjan
Published: August 2021

Society is concerned about maritime accidents since pollution, such as oil spills from ship accidents, adversely affects the marine environment. Operational and strategic pollution preparedness and response risk management are essential activities to mitigate such adverse impacts. Quantitative risk models and decision support systems (DSS) have been proposed to support these risk management activities. However, there currently is a lack of computationally fast and accurate models to estimate oil spill consequences. While resource-intensive simulation models are available to make accurate predictions, these are slow and cannot easily be integrated into quantitative risk models or DSS. Hence, there is a need to develop solutions to accelerate the computational process. A fast and accurate metamodel is developed in this work to predict damage and oil outflow in tanker collision accidents. To achieve this, multiobjective optimization is applied to three metamodeling approaches: Deep Neural Network, Polynomial Regression, and Gradient Boosting Regression Tree. The data used in these learning algorithms are generated using state-of-the-art engineering models for accidental damage and oil outflow dynamics. The multiobjective optimization approach leads to a computationally efficient and accurate model chosen from a set of optimized models. The results demonstrate the metamodel’s robust capacity to provide accurate and computationally efficient estimates of damage extents and volume of oil outflow. This model can be used in maritime risk analysis contexts, particularly in strategic pollution preparedness and response management. The models can also be linked to operational response DSS when fast, and reasonably accurate estimates of spill sizes are critical.
Frontline Workers’ Response to Harmful Sexual Behavior: Building Blocks For Promising Practice
Authors: McKibbin Gemma , Humphreys Cathy
Published: August 2021

Frontline workers, including educators and health practitioners, play an important role in identifying and responding to harmful sexual behavior (HSB) carried out by children and young people. Despite this, there have been no reviews of the evidence about promising practice for how frontline workers could best manage this behavior. This article presents a scoping review of evidence exploring the research question: How can frontline professionals be trained and supported to better manage HSB carried out by children and young people? Multiple databases were searched in July 2020. Inclusion criteria included a focus on professional development or practice relating to children and young people displaying inappropriate sexual behavior or HSB; a population of frontline workers (teachers, health practitioners, coaches, childcare workers); and all study types, including gray literature. Two reviewers screened the articles, and findings from included papers were synthesized according to the method of thematic synthesis. Thirty-one papers were included in the review. Five themes were identified in response to the research question: process of identification and response, knowledge required to identify and respond, skills needed to identify and respond, organization-level supports, and system-level supports. The authors propose the “building blocks” for a promising practice model, which sets out the process of identification and response to HSB, and the knowledge required by frontline workers to support that process. Further, the model identifies the skills required by frontline workers to undertake the process of identification and response, as well as the organization-level and system-level scaffolding needed for good practice.
The Effect of Hippocampal Avoidance Whole Brain Radiotherapy on the Preservation of Long-Term Neurocognitive Function in Non-Small Cell Lung Cancer Patients With Brain Metastasis
Authors: Wang Buhai , Fu Shiwei , Huang Yuxiang , Liu Liqin , Liang Yichen , An Wenxian , Fan Yaqin , Zhao Yisa
Published: August 2021

Whole-brain radiotherapy (WBRT) is the mainstay of therapy in treating cancer patients with brain metastases, but unfortunately, it might also lead to decline in neurocognitive function. This study aims to investigate the preservation of long-term neurocognitive function in patients after hippocampal avoidance whole-brain radiotherapy (HA-WBRT). Retrospectively, 47 patients diagnosed with brain metastases of non-small cell lung cancer (NSCLC) between 2015-01-01 and 2017-12-31 at the Department of Oncology, XXX Hospital were selected and divided into 2 groups. Group A (n = 27) received HA-WBRT, whereas group B (n = 20) received WBRT. Neurocognitive function was analyzed at baseline and at 3, 6, 9, 12 and 24 months after radiotherapy, using Mine-Mental State Examination (MMSE) scales and Montreal Cognitive Assessment (MoCA) scales. The OS, PFS and tumor recurrence sites were also analyzed. When evaluated at 12 and 24 months after radiotherapy, the cognitive function scores of the hippocampal avoidance group were significantly higher than those of the non-hippocampal avoidance group ( P < 0.001). In terms of patient survival, there was no significant difference in OS ( P = 0.2) and PFS (P = 0.18) between these 2 groups. Fourteen patients in group A and 12 patients in group B had brain tumor recurrence after radiation, only one patient in group A occurred within 5 mm from the edge of the hippocampus ( P > 0.05). In conclusion, HA-WBRT might have a protective effect on long-term neurocognitive function and did not affect patient survival.
Online Gaming and Racism: Impact on Psychological Distress Among Black, Asian, and Latinx Emerging Adults
Authors: TaeHyuk Keum Brian , Hearns Maynard
Published: August 2021

Although online racism occurs frequently and explicitly in online gaming (e.g., anti-Black hate speeches), no research has examined the psychological impact on racial/ethnic minority players. Thus, the current study examined the mediating role of online racism in the link between time spent in online gaming and psychological distress. Using data from 765 racial minority emerging adults in the United States and with gender controlled, time spent in online gaming predicted greater exposure to online racism, which in turn was linked to higher psychological distress. Post hoc multi-group comparison suggested that the findings were consistent with the Black group but neither the direct nor indirect effects of the model were significant for the Asian and Latinx groups. The results highlight the unjust digital burden and psychological costs of racism in online gaming among racial minority emerging adults, particularly among Black individuals. Limitations and implications for research are discussed.
Isolation, Characterization of Zn Solubilizing Bacterium (Pseudomonas protegens RY2) and its Contribution in Growth of Chickpea (Cicer arietinum L) as Deciphered by Improved Growth Parameters and Zn Content
Authors: Yasmin Riffat , Hussain Sabir , Rasool Muhammad Hidayat , Siddique Muhammad Hussnain , Muzammil Saima
Published: August 2021

Background: Zinc is an essential micronutrient required for optimum plant growth. Zinc-solubilizing bacteria convert applied inorganic zinc to available forms that could be used by plants. Research design: In present study, experiments were conducted to isolate, characterize, and evaluate Zn solubilization potential of different bacteria. Results: Among 10 isolated strains, Pseudomonas protegens (RY2, MF351762) was found to be the most promising strain having zinc-solubilizing potential on 4 different insoluble zinc sources. In quantitative assay, Zn solubilization by RY2 was significantly higher than other strains at different incubation time. P. protegens RY2 was selected (based on zinc solubilizing and plant growth promoting activities like P solubilization and ACC deaminase) for plant experiments. Meanwhile, available Zn release rate in soil was determined at day 10 of incubation. Chickpea seeds were inoculated with RY2 strain and ZnO is used as zinc source. Growth parameters and quantifying zinc content of shoot and root using atomic absorption spectrophotometer were determined. Enhanced shoot and root dry weights and lengths were observed in chickpea plants compared to control. Maximum increase of 44%, 67%, and 75% in T2 (Soil + RY2), T5 (Soil + ZnO + RY2), and T7 (Soil + manure + ZnO + RY2), respectively, was found in shoot length compared to control (T1). Conclusion: The study indicated that zinc-solubilizing RY2 strain possesses potential for enhanced Zn in soil so it would allow reduced inorganic Zn application.