bluuebunny/crossref_metadata_2025_split huggingface dataset:
Multiscale Aspects of the 26–27 April 2011 Tornado Outbreak. Part II: Environmental Modifications and Upscale Feedbacks Arising from Latent Processes
Authors: Chasteen Manda B. , Koch Steven E. 
Published: October 2021

Abstract
One of the most prolific tornado outbreaks ever documented occurred on 26–27 April 2011 and comprised three successive episodes of tornadic convection that culminated with the development of numerous long-track, violent tornadoes over the southeastern United States during the afternoon of 27 April. This notorious afternoon supercell outbreak was preceded by two quasi-linear convective systems (hereinafter QLCS1 and QLCS2), the first of which was an anomalously severe nocturnal system that rapidly grew upscale during the previous evening. Here in Part II, we use a series of RUC 1-h forecasts and output from convection-permitting WRF-ARW simulations configured both with and without latent heat release to investigate how environmental modifications and upscale feedbacks produced by the two QLCSs contributed to the evolution and exceptional severity of this multiepisode outbreak. QLCS1 was primarily responsible for amplifying the large-scale flow pattern, inducing two upper-level jet streaks, and promoting secondary surface cyclogenesis downstream from the primary baroclinic system. Upper-level divergence markedly increased after QLCS1 developed, which yielded strong isallobaric forcing that rapidly strengthened the low-level jet (LLJ) and vertical wind shear over the warm sector and contributed to the system’s upscale growth and notable severity. Moreover, QLCS2 modified the mesoscale environment prior to the supercell outbreak by promoting the downstream formation of a pronounced upper-level jet streak, altering the midlevel jet structure, and furthering the development of a highly ageostrophic LLJ over the Southeast. Collectively, the flow modifications produced by both QLCSs contributed to the notably favorable shear profiles present during the afternoon supercell outbreak.

Significance Statement
The tornado outbreak that impacted the United States on 26–27 April 2011 was part of an extended outbreak that produced 343 tornadoes and numerous fatalities. This paper is Part II of a study that describes the meteorological factors supporting such a prolific event. Herein we investigate the convectively forced environmental modifications that occurred during a 36-h period encompassing three successive convective episodes. The first two episodes collectively altered the upper-level flow pattern and markedly enhanced low-level winds throughout the warm sector. These modifications served as upscale feedbacks that contributed to the first episode’s exceptional severity and to the remarkable vertical shear profiles that supported numerous long-track and violent tornadoes during the final episode on the afternoon of 27 April.
A stakeholder perspective on public sector innovation: Linking the target groups of innovations to the inclusion of stakeholder ideas
Authors: Boon Jan , Wynen Jan , Callens Chesney 
Published: October 2021

Public sector innovation scholarship has not yet systematically explored how the target context (or output phase) of innovations impacts the early phases of innovation processes. This study theorizes and tests whether innovating organizations are more sensitive to ideas from particular stakeholder groups depending on the target group of said innovation. Using a large-scale dataset from the Australian Public Service, the results show that innovations with external target groups are more likely to be built on ideas from external stakeholders (compared with internal stakeholders) and—within the group of internal stakeholders—on ideas from managers (compared with non-managerial employees). Practical and scholarly implications are discussed. Points for practitioners: Innovations benefit from the inclusion of internal and external stakeholder ideas, both substantively (appropriate knowledge leads to better end products) and symbolically (innovations need to be deemed legitimate, and receive support from the actors that will be primarily impacted by the innovation). Innovating organizations need to be aware of the perceptions of the stakeholders affected by the innovation, and properly sense, capture and translate the ideas of those stakeholders in the innovation process.
A retrospective cohort study describing characteristics of those repeatedly detained under Section 136 of the Mental Health Act over a 5-year period and the association with past abuse
Authors: Adewusi Laureen , Mark Isabel , Wells Paige , O’Brien Aileen 
Published: October 2021

Individuals repeatedly detained under Section 136 (S136) of the Mental Health Act account for a significant proportion of all detentions. This study provides a detailed analysis of those repeatedly detained (‘repeat attenders’) to a London Mental Health Trust, identifying key demographic profiles when compared to non-repeat attenders, describing core clinical characteristics and determining to what degree a past history of abuse might be associated with these. All detentions to the S136 suite at South West London and St George's Mental Health NHS Trust over a 5-year period (2015–2020) were examined. Data were collected retrospectively from electronic records. A total of 1767 patients had been detained, with 81 patients identified as being a ‘repeat attenders’ (having had > = 3 detentions to the S136 suite during the study period). Repeat attenders accounted for 400 detentions, 17.7% of all detentions. Repeat attenders included a higher proportion of females (49.4%, p = 0.0001), compared to non-repeat attenders, and a higher proportion of them were of white ethnicity (85.2%, p = 0.001). 52 (64%) patients reported being a victim of past abuse or trauma. Of repeat attenders who reported past abuse or trauma, a high proportion had diagnoses of personality disorders, with deliberate self-harm as the most common reason for detention. They were more commonly discharged home with community support, rather than considered for hospital admission. In light of these findings, this paper discusses support potential strategies for those most vulnerable to repeated S136 detention, thereby minimising the ever-growing number of S136 detentions in the UK.
System dynamics kinetic model for predicting biogas production in anaerobic condition: Preliminary assessment
Authors: Momodu Abiodun S , Adepoju Tofunmi D 
Published: October 2021

Introduction: This preliminary assessment of a grey-box model, was predicated on system dynamics principles and developed using Vensim® DSS software. The purpose is to predict biogas production under anaerobic conditions for energy utilization at the design stage. Objective: To describe the process of a developed system dynamics model to predict biogas production under anaerobic conditions. Methods: This method involves two-stage kinetics of the biogas production process in anaerobic conditions using the first-order and Gompertz functions. The model is depicted in two parts: causal loop diagram and stock–flow diagram. The causal loop diagram describes the anaerobic digestion process a substrate undergoes for the production of biogas, while stock–flow diagram depicts basic building blocks of the dynamic behavior of an anaerobic digestion process. Primary data is from a laboratory-scale experiment of biogas production using vegetal wastes, while the secondary one is from the literature on studies using similar substrates. Results: Primary and secondary data are used to validate and stimulate the developed model. The kinetic model shows the substrate being reduced exponentially with increasing time; consumption of substrate and production of methane and carbon dioxide follows exponential growth and decay pattern, with carbon dioxide production starting early compared to methane, and was produced at a rate faster due to the strong and resilient characteristics of fermentative microorganisms. Discussion: Comparing data from empirical and model simulation shows some close relationship, though not too perfectly. Both results reflect signs of inhibitions occurring within the substrates in the digester under anaerobic conditions explaining the low methane yield or instability.
Transforming the Online Learning Experience
Authors: Hamilton Nancy J. , Heddy Benjamin C. , Goldman Jacqueline A. , Chancey John B. 
Published: October 2021

Background College instruction has experienced a significant movement toward increased online learning course options. Without appropriate supports, students in virtual learning environments often face greater challenges with self-regulation, motivation, and recognizing the personal relevance of course content. Objective The current study focuses on the prevalence of personal relevance and its associated impact on cognitive and motivational variables including achievement emotion, intrinsic value, self-efficacy, test anxiety, cognitive strategy use, self-regulation, and metacognition in a virtual learning environment. Method Students in two online graduate level human development courses completed a series of questionnaires ( N = 73) for course credit. Results Results show the high transformative experience (TE) group reported significantly higher positive emotions, interest, intrinsic value, self-efficacy, cognitive strategy use, test anxiety, and self-regulation, giving them more cognitive and motivational benefits than those who experienced low levels. They also show no relationship between TE and course grade. Conclusion Future research in this area may benefit from focus on ways to intentionally increase TEs from online contexts to real-life contexts. Teaching Implications Such research would allow instructors intentionality in pedagogical endeavors while allowing students to integrate course information into their daily lives.
A novel method for determining the X-ray beam angulation of the supraspinatus outlet view
Authors: Zheng Xiaoli , Hu Jingying , Xu Jian , Wang Zhen , Shu Zhenyu , Gong Xiangyang 
Published: October 2021

Background Rapid and accurate quantification of the supraspinatus outlet view (SOV) is a clinical challenge. Purpose To quantify the X-ray beam angle of the SOV using the horizontal angle of the subscapular spine line (SSSL) and to further verify the feasibility of this method. Material and Methods A total of 119 patients who underwent shoulder computed tomography (CT) examination were enrolled in the retrospective study. Three-dimensional (3D) CT reconstruction was performed and manually adjusted to provide the position similar to SOV. The rotation angle of the 3D image along the long axis of the human body (marked as β) was obtained. The horizontal angle of SSSL (marked as α) was measured on the anteroposterior localizer image of shoulder CT. Pearson correlation and linear regression correlation analysis were performed. In addition, the first-time success rate between the experience-based group and the measurement-based group were compared to verify the novel method. Results We found a linear correlation between α and β (r = 0.962; P = 0.000). There was no significant correlation between the experience-based group and the measurement-based group in terms of age ( P = 0.500), sex ( P = 0.397), and side ( P = 0.710), but there was a significant statistical difference in the first success rate between the two validation groups (χ2 = 5.808a, P = 0.016). Conclusion This novel quantitative measurement method for determining the X-ray beam angle of SOV using the horizontal angle of SSSL is feasible.
The Injured Shoulder in High-Level Male Gymnasts, Part 1: Epidemiology and Pathoanatomy of Surgically Treated Lesions
Authors: Gendre Patrick , Boileau Pascal 
Published: October 2021

Background: Weightbearing and traction-suspension movements with the upper limbs put considerable demands upon the shoulder region of high-level gymnasts. The diagnosis of instability in these gymnasts may be difficult because voluntary inferior shoulder subluxation is part of their training and is needed to perform some acrobatic figures. Purpose: To (1) assess the epidemiology of shoulder lesions requiring surgery, (2) describe the types of injuries and assess which maneuvers and equipment put the gymnast most at risk, and (3) present a pathoanatomic classification of the injured shoulder in high-level male gymnasts. Study Design: Case series; Level of evidence, 4. Methods: Over a 20-year period (1994-2014), 26 high-level male gymnasts (30 shoulders; mean age, 22 years; range, 16-33 years) were referred to our surgical center for shoulder pain or instability. Four gymnasts underwent surgery on both shoulders. All shoulders were evaluated clinically, radiologically, and arthroscopically. An independent observer evaluated the circumstances in which these lesions occurred, including the apparatus used and the maneuvers performed. Results: The mean duration of symptoms before surgery was 8 months (range, 6-24 months). Eighteen injured shoulders (60%) had chronic overuse injuries. In 27 shoulders (90%), the mechanism of injury was traction of the arm in forced flexion-rotation while using suspension equipment with locked hands on the bars or the rings. In the remaining 3 shoulders, the traumatic position was one of an isometric muscle contraction against gravity, sustained while performing strength-and-hold positions on the rings. Based on the main presenting symptoms (pain and/or instability) and main anatomic lesions found during arthroscopy, the injured gymnasts’ shoulders were classified into 2 categories: painful shoulders (n = 13) with no clinical, radiological, or arthroscopic findings of instability (mainly superior cuff and biceps anchor lesions) and unstable shoulders (n = 17) with isolated inferior capsule labral tears or mixed lesions (tendinous and capsulolabral). Some gymnasts with inferior labral tears had no recall of having suffered a dislocation or subluxation. Conclusion: The majority of injuries requiring surgery in this population occurred during traction in forced flexion-rotation using suspension equipment. Injured shoulders were classified as either painful or unstable shoulders.
The Injured Shoulder in High-Level Male Gymnasts, Part 2: Can Athletes Return to Competition After Surgery?
Authors: Gendre Patrick , Boileau Pascal 
Published: October 2021

Background: The results of surgical treatment of shoulder injuries in high-level male gymnasts have not yet been documented. Purpose: To evaluate the functional and subjective results after surgical treatment of shoulder injuries in high-level gymnasts and the possibilities to return to sport at the same level. Study Design: Case series; Level of evidence, 4. Methods: Over a 20-year period (1994-2014), 23 high-level male gymnasts (26 shoulders) underwent surgery by a single experienced shoulder surgeon. At the time of surgery, 7 gymnasts competed at the international level, 12 at the national elite level, and 4 at the regional level. According to symptoms and anatomic lesions, the shoulders were classified into 2 groups: painful shoulders (n = 11) and unstable shoulders (n = 15). Fifteen capsulolabral repairs, 10 cuff debridements, 1 cuff repair, 4 SLAP (superior labral anterior and posterior) repairs, and 8 suprapectoral biceps tenodesis were performed. Twelve shoulders (46%) had >1 procedure performed. Outcomes assessment was performed by an independent observer at a mean of 5 years (range, 2-15 years) postoperatively. In addition, patients completed the Subjective Shoulder Value (range, 0%-100%). Results: After shoulder surgery, 21 (91%) of the 23 gymnasts returned to competitive gymnastics, and 20 gymnasts (87%) regained their preinjury level of sport. All international-level gymnasts returned to their preinjury level of sport. Three athletes (13%) underwent revision surgery, and 1 athlete (4%) ended his career without returning to competition. The postoperative period before resumption of competitive gymnastics was 9 ± 3.5 months (mean ± SD). Of the 15 gymnasts treated for shoulder instability with arthroscopic stabilization, 12 were able to return to their previous level of sport. All 8 gymnasts who had arthroscopic biceps tenodesis were able to return to their previous level of sport, as opposed to only 2 of 4 gymnasts treated with SLAP repair. The gymnastics-specific Subjective Shoulder Value score was 80% ± 11%. Conclusion: Most gymnasts who required surgical treatment for a shoulder injury were able to return to competition at their previous level, although there was a considerable postoperative recovery period. Current arthroscopic reconstruction techniques were effective for treating structural lesions and allowing return to high-level gymnastics.
ACL Repair of Femoral Osseous Avulsion in a 13-Year-Old Using Suture Pullout Technique
Authors: Moore Andrew , Rames Jess , McGurk Kathy , Slone Harris 
Published: October 2021

Background: The incidence of pediatric anterior cruciate ligament (ACL) injuries has been increasing over the past 20 years, with the majority comprised of mid substance tears or tibial eminence avulsion fractures. Pediatric femoral sided osseous avulsion is rarely reported in orthopedic literature and specific surgical indications and contraindications, as well as recommended surgical techniques and postoperative rehabilitation protocols, are underdefined. Indications: The surgical indications for femoral-sided repair of ACL osseous avulsion includes a displaced osseous fragment and ligamentous laxity on physical examination. There was no concomitant midsubstance tear necessitating reconstruction. Technique Description: Two sutures piercing the proximal ligamentous bony junction of the ACL were fed through 2.4-mm transphyseal tunnels and secured with cortical button and backup fixation with a 3.9-mm swivel lock anchor in the proximal lateral femoral metaphysis. The patient was immobilized in a hinged-knee brace locked in extension during ambulation and limited to 90 degrees of flexion while nonweightbearing for the first 6 weeks after surgery. Standard ACL protocol was followed thereafter. Results: Successful fixation and restoration of ligamentous tension and impingement-free range of motion were achieved without complication. There was stable Lachman, negative pivot shift, 125 degrees of knee flexion, and evidence of early healing at 3 months follow-up. Discussion/Conclusion: This report demonstrates successful reduction and fixation of proximal bony avulsion of the ACL. Although this patient exhibits stable physical examination and undisturbed growth at early follow-up, more research is required to establish treatment and rehabilitation guidelines for this rare injury.
Normal seminal plasma could preserve human spermatozoa against cryopreservation damages in Oligozoospermic patients
Authors: Eini Fatemeh , kutenaei Maryam Azizi , Shirzeyli Maryam Hosseinzadeh , Dastjerdi Zeinolabedin Sharifian , Omidi Mahmoud , Novin Marefat Ghaffari 
Published: October 2021

Abstract
Background
Cryopreservation of human spermatozoa has been identified as an efficient procedure to preserve fertility in men before any cancer therapy or surgical infertility treatment. Despite the benefits of the procedure, the deleterious effects of cryopreservation have been proven on sperm structure and function. This study aimed to evaluate seminal plasma effects on human sperm characteristics after cryopreservation, and compare the addition of normozoospermic and oligozoospermic seminal plasma in the prepared oligozoospermic samples. Semen samples were collected from fifty-five oligozoospermic men and the twenty fertile individuals who referred to the infertility center. At first, a semen analysis was carried out on each neat ejaculate, and then some were cryopreserved. The remainder of the semen was divided into two, one for seminal plasma removal and the other for sperm preparation. Then, the prepared spermatozoa were cryopreserved in three groups: one with, and another without the addition of oligozoospermic seminal plasma, and still another with the addition of normal seminal plasma. After thawing, sperm DNA integrity, viability, motility, and morphology were determined.

Results
The percentages of all parameters were significantly lower after cryopreservation in all groups compared to the fresh sample. However, this reduction was lower in the oligozoospermic samples cryopreserved with normal seminal plasma.

Conclusion
The results indicated that seminal plasma in oligozoospermic patients could not support sperm against cryo-injuries, an indication likely due to insufficient antioxidants and other protective components in oligozoospermic patients. However, normal seminal plasma could slightly preserve sperm characteristics after cryopreservation in oligozoospermic patients.
Exon and intron sharing in opposite direction-an undocumented phenomenon in human genome-between Pou5f1 and Tcf19 genes
Authors: Mehravar Majid , Ghaemimanesh Fatemeh , Poursani Ensieh M. 
Published: October 2021

AbstractBackgroundOverlapping genes share same genomic regions in parallel (sense) or anti-parallel (anti-sense) orientations. These gene pairs seem to occur in all domains of life and are best known from viruses. However, the advantage and biological significance of overlapping genes is still unclear. Expressed sequence tags (ESTs) analysis enabled us to uncover an overlapping gene pair in the human genome.ResultsBy using in silico analysis of previous experimental documentations, we reveal a new form of overlapping genes in the human genome, in which two genes found on opposite strands (Pou5f1andTcf19), share two exons and one intron enclosed, at the same positions, between OCT4B3 and TCF19-D splice variants.ConclusionsThis new form of overlapping gene expands our previous perception of splicing events and may shed more light on the complexity of gene regulation in higher organisms. Additional such genes might be detected by ESTs analysis also of other organisms.