bluuebunny/crossref_metadata_2025 huggingface dataset:
Development of sustainable comfortable socks from recycled leno waste
Authors: Akhtar Shahan , Ahmad Faheem , Nawab Yasir , Rasheed Abher , Ahmad Sheraz , Azam Farooq
Published: June 2024

Society’s growing concern for the environment has led to an increased emphasis on greener products and processes. While societies are becoming more accepting of this change, there are still significant challenges regarding the esthetic aspect of environmentally friendly products. Textiles, which are essential for providing cover and esthetics, contribute to environmental pollution through waste production. Currently, the production of hard waste yarn, a textile intermediate product, utilizes the OE (open-end) spinning method to make use of textile waste. However, this approach has limitations in terms of quality, as it results in yarn with low abrasion resistance, higher pilling, and poor physical appearance of garments. Consequently, consumers are less satisfied with these sustainable yarns, hindering their widespread use. This study focused on preparing ring-spun yarn from recovered fibers of leno waste and subsequently producing knitted fabrics from these yarns. The properties of these fabrics were analyzed and compared with fabrics made from 100% virgin ring spun yarn. The results revealed that the fiber reclaimed from leno waste had a higher content of short fibers. The yarn produced from these fibers exhibited higher imperfections, unevenness, and reduced strength as the percentage of reclaimed fibers increased. Socks made with an increasing percentage of leno waste showed higher thermal resistance. However, as the yarn became finer, the thermal resistance of the socks decreased. On the other hand, the air permeability of the socks increased with a finer yarn count. Overall, the moisture management of all samples was good, with coarser yarns exhibiting better moisture management in socks. An ANOVA approach was used to statistically evaluate the properties of the yarn and fabric. The conclusion drawn from the study was that these recycled yarns can be effectively utilized in the socks and denim industry without compromising quality.
Thumb Metacarpal Periosteal Sleeve Avulsion: A Case Report
Authors: Yerich Nadiya V. , Rask Dawn , Schmitz Matthew , Sabbag Casey
Published: June 2024

Periosteal sleeve fractures, or avulsions of cartilage and/or periosteum with or without an osseous fragment in skeletally immature individuals, are notoriously easy to miss and a high index of suspicion is necessary for accurate diagnosis and treatment. While periosteal sleeve avulsion fractures are classically reported in the patella, they have also been reported in the shoulder, clavicle, and elsewhere in the knee. However, no published reports exist for a periosteal sleeve avulsion fracture in the hand. This case details the first reported instance of such an injury involving a thumb metacarpal in a 3-year-old boy, treated with open reduction and percutaneous pinning of the thumb metacarpal.
Design method for suspension parameters of high-speed railway vehicles considering uncertainties
Authors: Park Joonhyuk
Published: June 2024

A design method for suspension parameters is proposed to ensure the desired performance of a railway vehicle despite uncertainties. The method used in this study consists of two loops: a sub-loop, which uses parameter uncertainties to determine the minimum value of target performance, and a main loop, which optimises suspension parameters such that the minimal performance achieves Pareto optimality. Thus, by selecting a suitable Pareto solution that ensures the minimum performance is equal to or higher than the required performance, the robustness of the designed vehicle against the parameter uncertainties can be achieved. The lowest low-frequency damping ratio in the service speed range was selected as one of the design targets. The other target was the critical speed. Two wheel-rail contact characteristics were applied, considering the worst conditions for each design target. The distribution of the parameter uncertainties that minimised the vehicle performance showed distinct characteristics between the longitudinal and lateral suspension parameters, which provides useful information for the maintenance of railway vehicles. The performance analysis for 100,000 random samples shows that the vehicle performed better than the targets with a high probability despite the parameter uncertainties. Further, the simulation results using multi-body dynamics simulation software validated the viability of the proposed method.
Experimental studies of the explosion resistance of steel plate with an energy-absorbing layers
Authors: Chikhradze Nikoloz , Mataradze Edgar , Chikhradze Mikheil , Tavlalashvili Karlo , Akhvlediani Irakli , Malvenishvili Zurab
Published: June 2024

The aim of this paper is to examine explosion resistance of a composite structure which consists of the steel plate and energy-absorbing layers. With this end, an experimental study of the deformation of 2-3 mm thick steel plates containing different protective layers, namely, an aluminum honeycomb plate, an aluminum sheet, tubular core, polyurethane foam, or an aramid fabrics layer, subjected to explosion generated air shock wave load, has been carried out. At the initial stage of testing, absorbing properties of various composites were examined under relatively low intensity dynamic loads (820 kPa). The dynamic response was assessed by applying bending attenuation and plate center acceleration attenuation factors. This was followed by testing sandwich structures under critical load conditions, when the plate was demolished or subjected to a substantial residual deformation. The study has shown that the composite containing an aluminum honeycomb plate has higher explosion resistance as compared to other tested composites. The proposed design ensures retention of explosion resistance under relatively high dynamic impacts at a reduced distance W = 0.46 m/kg1/3.
The Creative Industries’ Role in Low-Density Territories’ Sustainability: The Douro Region
Authors: Galvão Anderson R , Marques Carla S. , Monteiro Carolina , Mascarenhas Carla
Published: June 2024

The main objective of this study is to understand the role of creative industries in the sustainability of low-density territories. Primary data were gathered from semi-structured interviews’ transcripts. The interviews were applied to five creative entrepreneurs and heads of companies belonging to the creative industries, and four heads of local institutions, namely a university, two municipalities and a business incubator. The data were processed using NVivo software. The results obtained show that creative industries can be a solution to the problems identified in low-density territories, since creative companies reduce the unemployment rate and increase the population, thus reversing the depopulation of these territories. Creative industries also value local resources and the development of the local economy, thus enabling the emergence of innovation. This research’s findings include evidence of creative industries’ significant impact on low-density regions. In addition, this study demonstrates information and evidence on the role of creativity and this sector of creative companies, as well as the influence shown by creative entrepreneurs in the development of the region. The main limitations of this study are related, on the one hand, to the subjectivity of qualitative studies, due to the fact that the results can be interpreted in several ways. On the other hand, because only one territory was studied.
An Investigation of University Engineering Students’ Attitudes and Motivation in Correlation to Their Identity Formation in the Learning of EFL in a Multilingual and Multicultural Context
Authors: Wappa John Peter , Gilanlioglu Ilkay
Published: June 2024

The study investigated engineering students’ attitudes and motivation in relation to their identity formation during the learning of EFL in a multilingual and multicultural context. It adopted a Motivational Factors Questionnaire (MFQ) based on Dörnyei’s L2 Motivational System framework. In this study, a mixed-methods approach was applied, with an ordered logistic regression technique for the quantitative part and content analysis for the qualitative part. The study revealed that engineering students’ characteristics such as gender, age, learners’ attitudes toward the L2 community, and nationality were influential factors in constructing their identity in a multilingual and multicultural context. In addition, they were found to be motivated to learn EFL for some pragmatic benefits, leading to positive attitudes toward EFL learning in such a context. They easily construct their identity because of their linguistic and cultural exposure. It is recommended that EFL be taught to all university students irrespective of their course of study, to fit perfectly into the globally diverse labor market of society.
Being Happy Pays Off! Positive Affect Shaping Employee Creativity in the Hospitality Industry Through the Lens of Broaden-and-Build Theory
Authors: Mashkoor Maria , Muhammad Lakhi
Published: June 2024

Service organizations, particularly in the hospitality sector, are constantly under pressure to meet the ever-increasing and ever-changing expectations of the customers, in an innovative manner; making employee creativity a mainstream demand. Researchers and practitioners are pondering ways to frame employee creativity in the hospitality industry. This study aims to empirically investigate the role of positive affect in framing employee creativity in the hospitality industry. The broaden-and-build theory was employed to explain the framework under study, examining relations between affective, cognitive, psychological, and social factors that may shape employee creativity in the hospitality industry. Data was collected from 391 employees, working in hotels and restaurants in Pakistan, on a structured survey, by using a purposive sampling approach. The PLS-SEM approach was considered for data analysis. The findings show a positive relationship between positive affect and perspective-taking. The previously understudied relationship between perspective-taking and thriving at work was found significant. The relationship of perspective-taking with structural and relational social capital was also found significant. Supporting prior research, our results show that thriving at work and relational social capital lead to employee creativity. Interestingly, the relationship between structural social capital and employee creativity was insignificant. This study provides valuable insights for practitioners and hospitality managers to shape employee creativity by considering positive affect as a stimulator.
Social support in recently diagnosed diabetic patients: Risk factor for depression?
Authors: Delgado-Galeano Mayut , Vera-Cala Lina-Maria
Published: June 2024

Background: social support is important for adaptation in chronic diseases, such as diabetes and depression, because it favors recovery and adherence to treatment. Introducing its evaluation in the follow-up of diabetic patients can reduce complications derived from secondary non-adherence. Aims: to establish social support in diabetic patients and its correlation with depressive symptoms. Methods: a cross-sectional analytical study nested in a cohort of 173 recently diagnosed diabetic patients (<6 months) in Colombia over 18 years of age, treated in a cardiovascular risk program in 2022. The Chronic Illness Social Support Inventory was used. Results: Most of the participants were women (77.5%); single(83.8%), age (mean = 62.6 years (SD 12.3)); glycemia (mean = 146.4 (SD 65.5)), glycosylated hemoglobin (mean = 7.6 (SD 1.7)). Cronbach’s α coefficient for the general scale of the social support instrument was 0.9859. The mean social support was 168.5 (SD 37.4), range 38–228. The total social support score was normally distributed (Shapiro Wilk p > 0.05). The correlation between domains was statistically significant. The PHQ9 total score was significantly associated with the domains of Personal Interaction and Guide but did not significantly correlate with the overall social support score. The respondents who were at risk of developing depression were referred for treatment. Conclusions: findings suggest that perceived social support may play a significant role in the prevention and treatment of depression in diabetic patients. It is desirable that health professionals consider evaluating and enhancing social support to improve their mental health. More research is needed to gain a comprehensive understanding of this relationship.
An Empirical Analysis of Price Discovery and Causal Relationship Between Futures and Spot Market in India
Authors: Sridhar L S
Published: June 2024

The derivatives market has witnessed many positive experiences over the cash market, and it is leading to the price discovery process. It signifies that the price movements in the derivative segment strongly influence the cash market and that the cash market follows the derivative market for price determination. The price discovery happens in the derivative segment which is one of the functions of the derivative market. Both the futures and spot markets try to maintain equilibrium whenever disequilibrium occurs between the spot and futures market. Nifty IT futures and spot prices exhibit short-run relationship; whenever disequilibrium occurs in the co-integrated series, it is the futures market that makes greater adjustments in order to re-establish the equilibrium.
Total mesorectal excision after rectal-sparing approach in locally advanced rectal cancer patients after neoadjuvant treatment: a high volume center experience
Authors: Rega Daniela , Granata Vincenza , Romano Carmela , Fusco Roberta , Aversano Alessia , Ravo Vincenzo , Petrillo Antonella , Pecori Biagio , Di Girolamo Elena , Tatangelo Fabiana , Avallone Antonio , Delrio Paolo
Published: June 2024

Background:

In patient with a complete or near-complete clinical response after neoadjuvant treatment for locally advanced rectal cancer, the organ-sparing approach [watch & wait (W&W) or local excision (LE)] is a possible alternative to major rectal resection. Although, in case of local recurrence or regrowth, after these treatments, a total mesorectal excision (TME) can be operated.

Method:

In this retrospective study, we selected 120 patients with locally advanced rectal cancer (LARC) who had a complete or near-complete clinical response after neoadjuvant treatment, from June 2011 to June 2021. Among them, 41 patients were managed by W&W approach, whereas 79 patients were managed by LE. Twenty-three patients underwent salvage TME for an unfavorable histology after LE (11 patients) or a local recurrence/regrowth (seven patients in LE group – five patients in W&W group), with a median follow-up of 42 months.

Results:

Following salvage TME, no patients died within 30 days; serious adverse events occurred in four patients; 8 (34.8%) patients had a definitive stoma; 8 (34.8%) patients undergone to major surgery for unfavorable histology after LE – a complete response was confirmed.

Conclusion:

Notably active surveillance after rectal sparing allows prompt identifying signs of regrowth or relapse leading to a radical TME. Rectal sparing is a possible strategy for LARC patients although an active surveillance is necessary.
Point-of-care Glycated Hemoglobin (POC-A1c) Testing Helps Early Diagnosis of Diabetes
Authors: Agrawal Rajesh
Published: June 2024

Just like the DIPSI Guidelines for GDM in India, we must have a rapid screening tool like POC-A1c, which gives an estimate of long-term hyperglycemia and helps early detection. Traditional gold standard methods may delay the diagnosis for an indefinite time, as we have seen in our observations that of those who did not opt for POC-A1c, about 34% did not turn up even after three months. We infer that random capillary blood glucose (with a history of meal timings) of more than 140 mg% using POC-A1c helps in instant diagnosis accuracy of about 93%, or exclusion and necessary action can be taken immediately compared to traditional gold standard methods.

It also saves time and is cost-effective as no preparation is required, transportation can be avoided, and it also removes the stress or burden of being positive immediately. We know the important role of POC-A1c in treatment intensification or deintensification in the management of known T2DM patients. We also know that POC-A1c is not recommended for the diagnosis of DM by ADA, but evidence suggests we can opt for RPG and POC-A1c to screen and confirm or exclude T2DM.

At the same time, we also recommend large-scale cross sectional studies to recommend POC-A1c as a tool for early screening and diagnosis and definitely reconfirmation is always possible and can be recommended.
Intermittent Tibial Artery Compressibility in the Noninvasive Vascular Laboratory: Implications for Diagnosis and Follow-Up
Authors: Scissons Robert , Ettaher Abraham
Published: June 2024

Objective:

There is limited evidence available regarding intermittent tibial artery compressibility in the published literature. This investigation looks to determine the existence of intermittent tibial artery compressibility, in the noninvasive vascular laboratory.

Materials and Methods:

Consecutive patients underwent noninvasive arterial physiologic testing. An ankle-brachial index (ABI) ≥1.40 was defined as noncompressible and classified into 4 subgroups: (1) noncompressible single occurrence (NC-S), (2) noncompressible multiple occurrence (NC-M), (3) compressible to noncompressible (C-NC), and (4) intermittently compressible (I-C) ABI. Normal patients were compared to these noncompressible subgroups. Selective risk factors were compared in the C-NC and I-C ABI patient groups.

Results:

Of the 13 881 patients that were evaluated, 89% had compressible tibial arteries and 11% were noncompressible. Intermittent tibial artery compressibility was present in 11.3% of the patients, with noncompressible arteries. There were 718 patients from the NC-M, C-NC, and I-C subgroupings that had 3014 follow-up exams, over mean duration of 38 ± 27.7 months. The C-NC and I-C subgroup patients averaged 3.3 and 3.6 calcification risk factors, respectively.

Conclusion:

A subset of patients with intermittent tibial artery compressibility was confirmed in the noninvasive vascular laboratory. Additional research is needed to substantiate these findings and investigate whether intermittent compressibility may be marker for increased cardiovascular risk.
The impact of cognitive-motor interference on balance and gait in hearing-impaired older adults: a systematic review
Authors: Wunderlich Anna , Wollesen Bettina , Asamoah Janek , Delbaere Kim , Li Karen
Published: June 2024

Background

Hearing impairments are a rising burden in our aging society. Hearing loss is associated with reduced cognitive performance as well as decrements in balance and gait. Therefore, impaired hearing affects also dual tasking (DT). The aim of this review is to summarize the evidence for DT performance decrements of older adults with hearing impairments during maintaining balance or walking.

Methods

The systematic literature research according to PRISMA guidelines was conducted using MEDLINE, APA Psych-Info, and Web of Science. Inclusion criteria were: Independent living older people ≥ 60 years with hearing impairments, use of a DT paradigm to test hearing impaired older adults within a balance or walking condition.

Results

N = 57 studies were found within the databases. Eight studies were included (N = 456 participants (58% women), including n = 200 older hearing-impaired persons with different levels of hearing loss). Most of the included studies oriented their inclusion criteria for hearing-impairments at thresholds for mild hearing loss with Pure Tone Average (0.5-4 kHz) ≥ 25 and < 40 dB. Three of the studies focused on DT balance performance and five used DT walking comparing participants with and without hearing loss. For DT balance and gait performance, higher decrements for the hearing-impaired group were observed compared to healthy older adults. Performance decrements were accompanied by reduced compensatory strategies in balance performance.

Conclusion

More pronounced decrements in DT performance were observed for participants with hearing impairments compared to those without. This implies that hearing-impaired older adults might need specific interventions to reduce the cognitive-motor interference (CMI) to maintain balance control or walking stability in daily situations that require managing of cognitive and motor tasks simultaneously. However, taking all results into account the underlying mechanisms of CMI for this target group needs to be further examined.

Trial registration

This review was registered at Prospero with the ID CRD42022340232.
Nanoscale insights into hematology: super-resolved imaging on blood cell structure, function, and pathology
Authors: Liu Jinghan , Tan Yuping Yolanda , Zheng Wen , Wang Yao , Ju Lining Arnold , Su Qian Peter
Published: June 2024

Fluorescence nanoscopy, also known as super-resolution microscopy, has transcended the conventional resolution barriers and enabled visualization of biological samples at nanometric resolutions. A series of super-resolution techniques have been developed and applied to investigate the molecular distribution, organization, and interactions in blood cells, as well as the underlying mechanisms of blood-cell-associated diseases. In this review, we provide an overview of various fluorescence nanoscopy technologies, outlining their current development stage and the challenges they are facing in terms of functionality and practicality. We specifically explore how these innovations have propelled forward the analysis of thrombocytes (platelets), erythrocytes (red blood cells) and leukocytes (white blood cells), shedding light on the nanoscale arrangement of subcellular components and molecular interactions. We spotlight novel biomarkers uncovered by fluorescence nanoscopy for disease diagnosis, such as thrombocytopathies, malignancies, and infectious diseases. Furthermore, we discuss the technological hurdles and chart out prospective avenues for future research directions. This review aims to underscore the significant contributions of fluorescence nanoscopy to the field of blood cell analysis and disease diagnosis, poised to revolutionize our approach to exploring, understanding, and managing disease at the molecular level.

Graphical Abstract
Effect of high-flow nasal cannula at different flow rates on diaphragmatic function in subjects recovering from an acute exacerbation of COPD: a physiological prospective pilot study
Authors: Colaianni-Alfonso Nicolás , Castro Iván , Cáceres Vanesa , Montiel Guillermo , Maggiore Salvatore Maurizio , Vetrugno Luigi
Published: June 2024

Background

Noninvasive ventilation (NIV) is widely employed as the initial treatment for patients with chronic acute exacerbation of obstructive pulmonary disease (AECOPD). Nevertheless, high-flow nasal cannula (HFNC) has been increasingly utilized and investigated to mitigate the issues associated with NIV. Flow rate may play a significant role in diaphragmatic function among subjects recovering from AECOPD. Based on these observations, we conducted a physiological study to assess the impact of HFNC therapy on diaphragmatic function, as measured by US, respiratory rate (RR), gas exchange, and patient comfort at various flow rates.

Methods

A prospective physiological pilot study enrolled subjects with a diagnosis of AECOPD who required NIV for more than 24 h. After stabilization, these subjects underwent a 30-min trial using NIV and HFNC at different sequential flow rates (30–60 L/min). At the end of each trial, diaphragmatic displacement (DD, cm) and diaphragmatic thickness fraction (DTF, %) were measured using ultrasound. Additionally, other physiological variables, such as RR, gas exchange, and patient comfort, were recorded.

Results

A total of 20 patients were included in the study. DD was no different among trials (p = 0.753). DTF (%) was significantly lower with HFNC-30 L/min compared to HFNC-50 and 60 L/min (p < 0.001 for all comparisons). No significant differences were found in arterial pH and PaCO2 at discontinuation of NIV and at the end of HFNC trials (p > 0.050). During HFNC trials, RR remained unchanged without statistically significant differences (p = 0.611). However, we observed that HFNC improved comfort compared to NIV (p < 0.001 for all comparisons). Interestingly, HFNC at 30 and 40 L/min showed greater comfort during trials.

Conclusions

In subjects recovering from AECOPD and receiving HFNC, flows above 40 L/min may not offer additional benefits in terms of comfort and decreased respiratory effort. HFNC could be a suitable alternative to COT during breaks off NIV.
Image-domain least-squares imaging in an elastic vertically transversely isotropic medium: Multiparameter point-spread function deconvolution
Authors: Zhao Chong , Yang Jidong , Huang Jianping , Qin Ning , Yang Feilong , Sun Jiaxing
Published: June 2024

By solving a linear inverse problem, least-squares migration (LSM) can provide higher-precision images of complex subsurface structures than traditional adjoint-operator-based migration. LSM can be conducted in the data domain and the image domain (IDLSM). IDLSM in acoustic media has been extensively studied, commonly using single-parameter point-spread function (PSF) deconvolution. For high-accuracy imaging of complex media, we develop an image-domain elastic least-squares imaging method using multiparameter PSF deconvolution for vertically transversely isotropic (VTI) media. The multiparameter PSFs, including P-P, P-S, S-P, and S-S components, are calculated on a sparse grid using elastic VTI wave equation Born modeling and migration. The traditional migration result is then decomposed into individual local results, each corresponding to the size of a single PSF, through unit partitioning. Finally, a set of filters is derived from four elastic VTI PSF components to approximate the Hessian inverse, which are subsequently assembled to reconstruct an entire deconvolved image. The numerical experiments confirm that our method can significantly decrease multiparameter crosstalk artifacts and improve spatial resolution and amplitude fidelity.
The Association of Female and Male Preconception Dyslipidemia With Live Birth in Couples Seeking Fertility Treatment
Authors: Bollig Kassie J , Barnhart Kurt T , Schisterman Enrique F , Johnstone Erica Boiman , Peterson C Matthew , Hotaling James M , Ryan Ginny , Van Voorhis Bradley J , Carrell Douglas T , Mendola Pauline , Mills James L , Harhay Michael O , Zee Jarcy , Mumford Sunni L
Published: June 2024

Context

Dyslipidemia is common, and resultant endothelial dysfunction may impact reproductive outcomes. No prospective study has examined the effect of preconception lipid parameters in both female and male partners or their interaction on live birth.

Objective

To determine whether live birth is associated with preconception lipids in both partners by planned fertility treatment.

Design

Secondary analysis of the Folic Acid and Zinc Supplementation Trial, conducted between June 2013 and December 2017. Couples were followed for 9 months after randomization and until delivery.

Setting

Multicenter study.

Participants

Couples seeking fertility treatment (n = 2370; females 18-45 years, males ≥18 years).

Exposures

Female, male, and couple abnormal vs normal preconception lipid concentrations [total cholesterol (TC), low-density lipoprotein (LDL), high-density lipoprotein, triglycerides].

Main Outcome Measures

Live birth.

Results

Among 2370 couples, most males (84%) and females (76%) had at least 1 abnormal lipid parameter. Males planning in vitro fertilization (IVF, n = 373) with elevated LDL had lower probability of live birth than those with normal levels [47.4% vs 59.7%, adjusted relative risk (aRR) 0.79, 95% confidence interval (CI) 0.65-0.98]. In couples planning IVF where both partners had elevated TC or LDL, live birth was lower than those with normal levels (TC: 32.4% vs 58.0%, aRR 0.53, 95% CI 0.36-0.79; and LDL: 41.9% vs 63.8%, aRR 0.69, 95% CI 0.55-0.85). Lipid parameters were not associated with live birth for couples planning non-IVF treatments.

Conclusion

Couples planning IVF where both partners had elevated TC or LDL and males planning IVF with elevated LDL had decreased probability of live birth. These findings may support lipid screening in patients seeking fertility treatment for prognostic information for reproductive outcomes.
Repeat Single-Session Stereotactic Radiosurgery for Cerebral Arteriovenous Malformations: A Systematic Review, Meta-Analysis, and International Stereotactic Radiosurgery Society Practice Guidelines
Authors: Shaaban Ahmed , Tos Salem M. , Mantziaris Georgios , Kotecha Rupesh , Fariselli Laura , Gorgulho Alessandra , Levivier Marc , Ma Lijun , Paddick Ian , Pollock Bruce E. , Regis Jean , Suh John H. , Yomo Shoji , Sahgal Arjun , Sheehan Jason P.
Published: June 2024

BACKGROUND AND OBJECTIVES:

Repeat stereotactic radiosurgery (SRS) for residual arteriovenous malformations (AVMs) can be considered as a salvage approach after failure of initial SRS. There are no published guidelines regarding patient selection, timing, or SRS parameters to guide clinical practice. This systematic review aimed to review outcomes and complications from the published literature to inform practice recommendations provided on behalf of the International Stereotactic Radiosurgery Society.

METHODS:

We performed a systematic review and meta-analysis following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. A comprehensive search of MEDLINE, Scopus, Web of Science, and Embase was conducted. Fourteen studies with 925 patients met the inclusion criteria. Patients were treated between 1985 and 2022. All studies were retrospective, except for one prospective cohort.

RESULTS:

The median patient age at repeat SRS ranged from 32 to 60 years. Four studies (630 patients) reported detailed information on Spetzler–Martin grade at the time of repeat SRS; 12.54% of patients had Spetzler–Martin grade I AVMs (79/630 patients), 46.51% had grade II (293/630), 34.92% had grade III (220/630), 5.08% had grade IV (32/630), and 0.95% had grade V (6/630). The median prescription doses varied between 15 and 25 Gy (mean, 13.06-22.8 Gy). The pooled overall obliteration rate at the last follow-up after repeat SRS was 59% (95% CI 51%-67%) with a median follow-up between 21 and 50 months. The pooled hemorrhage incidence at the last follow-up was 5% (95% CI 4%-7%), and the pooled overall radiation-induced change incidence was 12% (95% CI 7%-20%).

CONCLUSION:

For an incompletely obliterated AVM, repeat radiosurgery after 3 to 5 years of follow-up from the first SRS provides a reasonable benefit to the risk profile. After repeat SRS, obliteration is achieved in the majority of patients. The risk of hemorrhage or radiation-induced change appears low, and International Stereotactic Radiosurgery Society recommendations are presented.
Association of Glymphatic and White Matter Impairment With the Postoperative Outcome of Pediatric Hydrocephalus
Authors: Zhao Cailei , OuYang YiPing , Zhang Gongwei , Zang Dongdong , Xia Jun , Liang Guohua , Ye Miaoting , Wang Jingsheng , Gan Yungen , Zhou Yangyang , Yang Jian , Li Xianjun
Published: June 2024

BACKGROUND AND OBJECTIVES:

Assessment of postoperative outcomes on pediatric hydrocephalus is critical for adjusting treatment strategies. The aim of this work was to investigate the ability of MRI metrics to predict postoperative outcomes.

METHODS:

A total of 55 children with hydrocephalus who underwent MRI and ventriculoperitoneal shunt surgery were prospectively enrolled. MRI was also performed at 6 months postoperatively in 33 of the 55 children. A total of 92 controls matched for age and sex were enrolled and divided into preoperative and postoperative control groups. We calculated the diffusion tensor imaging along the perivascular space (DTI-ALPS) index, Evans index, and diffusion tensor imaging metrics. The ability of various metrics to predict postoperative outcomes was assessed using receiver operating characteristic curve analysis.

RESULTS:

The DTI-ALPS index was significantly lower in patients with hydrocephalus than in controls. The abnormal DTI-ALPS index trended toward the normal range after surgery. Patients with lower preoperative DTI-ALPS index, lower fractional anisotropy (FA), and higher radial diffusivity in association fibers had less favorable short-term outcomes. Patients with worse long-term outcomes had lower postoperative DTI-ALPS index, higher postoperative Evans index, and lower FA and higher radial diffusivity in association fibers. Predictive performance was better when the DTI-ALPS index and FA in association fibers were used in combination than when either of these metrics was used alone.

CONCLUSION:

The DTI-ALPS index and FA in association fibers provided complementary information for prognostic assessment after the ventriculoperitoneal shunt surgery on pediatric hydrocephalus. A combination of DTI-ALPS index and FA would improve our ability to predict postoperative outcomes in these patients.
Sapporo: A workflow execution service that encourages the reuse of workflows in various languages in bioinformatics
Authors: Suetake Hirotaka , Tanjo Tomoya , Ishii Manabu , P. Kinoshita Bruno , Fujino Takeshi , Hachiya Tsuyoshi , Kodama Yuichi , Fujisawa Takatomo , Ogasawara Osamu , Shimizu Atsushi , Arita Masanori , Fukusato Tsukasa , Igarashi Takeo , Ohta Tazro
Published: June 2024

The increased demand for efficient computation in data analysis encourages researchers in biomedical science to use workflow systems. Workflow systems, or so-called workflow languages, are used for the description and execution of a set of data analysis steps. Workflow systems increase the productivity of researchers, specifically in fields that use high-throughput DNA sequencing applications, where scalable computation is required. As systems have improved the portability of data analysis workflows, research communities are able to share workflows to reduce the cost of building ordinary analysis procedures. However, having multiple workflow systems in a research field has resulted in the distribution of efforts across different workflow system communities. As each workflow system has its unique characteristics, it is not feasible to learn every single system in order to use publicly shared workflows. Thus, we developed Sapporo, an application to provide a unified layer of workflow execution upon the differences of various workflow systems. Sapporo has two components: an application programming interface (API) that receives the request of a workflow run and a browser-based client for the API. The API follows the Workflow Execution Service API standard proposed by the Global Alliance for Genomics and Health. The current implementation supports the execution of workflows in four languages: Common Workflow Language, Workflow Description Language, Snakemake, and Nextflow. With its extensible and scalable design, Sapporo can support the research community in utilizing valuable resources for data analysis.
Tourette syndrome research highlights from 2023
Authors: Hartmann Andreas , Andrén Per , Atkinson-Clement Cyril , Czernecki Virginie , Delorme Cécile , Mol Debes Nanette , Morand-Beaulieu Simon , Müller-Vahl Kirsten , Paschou Peristera , Szejko Natalia , Topaloudi Apostolia , Black Kevin J.
Published: June 2024

In this, the tenth annual update for the F1000Research Tics collection, we summarize research reports from 2023 on Gilles de la Tourette syndrome and other tic disorders. The authors welcome article suggestions and thoughtful feedback from readers.
Unravelling the devaluation puzzle: Empirical insights into the transmission channel on balance of payments and output in Ethiopia
Authors: Maru Ayinewa Yigermal , Belay Zegeye Mesele , Ayanaw Alemu Tesfahun , Belaye Tefera Abate
Published: June 2024

Background Empirical studies on the impact of devaluation in developing countries, including Ethiopia, have revealed diverse and mixed results. The effects can be positive or negative depending on the specific economic context and policies in place.This study addresses the devaluation puzzle by providing a more comprehensive and nuanced understanding of how devaluation affects the balance of payments and output. Methods To achieve this, we employ a recursive structural vector autoregressive (SVAR) model focusing on Ethiopia from 2001Q1 to 2023Q4. Results The findings reveal that exchange rate shocks negatively affect the balance of payments in both the short and long run, with a greater impact observed in the short run. Shocks in other variables, such as foreign exchange rate reserves, inflation, and interest rates, exert a stronger influence on the balance of payments than the exchange rate itself in the long run. In addition, shocks in the exchange rate significantly impact foreign exchange rate reserves in the long run, highlighting the complex dynamics of exchange rates and the indirect nature of the exchange rate channel. Exchange rate shocks also negatively impact output growth in both the short and long run. Conclusion The study concludes that devaluation has a contractionary effect through various channels. Devaluation increases the money supply, leading to inflationary pressures and a decline in output. It also increases interest rates, which further reduces output. In addition, devaluation reduces foreign exchange reserves, resulting in a fall in the balance of payments and a decrease in output. We suggest policymakers prioritize exchange rate stability through practical monetary and fiscal policies. In general, International financial institutions, particularly the National Bank of Ethiopia, should reconsider their devaluation-focused policies, considering the complexities and potential negative consequences associated with devaluation.
Ground-penetrating radar scanning and historical interpretation of the location of the destroyed Epiphany Cathedral in Kyiv Brotherhood Monastery (Ukraine)
Authors: Bondar Kseniia , Taranenko Sergiy , Zatyliuk Yaroslav , Popelnytska Olena , Osinchuk Tetiana
Published: June 2024

Background The article presents results of a ground penetrating radar (GPR) scanning carried out in a site of the Epiphany Cathedral of Brotherhood Monastery in Kyiv, Ukraine, destroyed in 1936 by the Soviets. The Cathedral is known as a burial site of Hetman Petro Sahaidachnyi (1582–1622), a Ukrainian Cossack political and civic leader, guardian and patron of Kyiv Brotherhood Monastery. The collection of archival documents, blueprints, stock sources, photographs and cartographic materials of the 17th-19th centuries, as well as historical works of the 19th-21st centuries, were thoroughly analyzed and used as a basis for the interpretation of geophysical results. The set of historical data covers the period from 1615, that is, from the beginning of the construction of the wooden Epiphany Church, the predecessor of the cathedral, to the present day. Methods Summarized information about the construction, restoration after the fire, functioning and destruction of the Cathedral, as well as about the construction on its site in the 20th century, archaeological research in the 20th-21st centuries, was used to clarify possible location of hidden foundations and target GPR measurements. In this context, written testimonies of archaeologists who personally observed the foundations of the cathedral became especially valuable. The shielded GPR antennas, with a central frequency of 300 MHz and 700 MHz, is used for non-invasive investigation. Results GPR scanning specified the site and showed the best-preserved group of foundations of the western wall of the Epiphany Cathedral. Conclusions An integrated historical and geophysical study provided the basis to certify the foundation of the Epiphany Cathedral as a protected object of cultural heritage and facilitated its archaeological research.
Is entrepreneurship a key factor in the development of European countries? A proposal for an innovation readiness environment (IRE) index
Authors: Fabbro Elisa , Kyrdoda Yuliia , Dore Salvatore , Marzi Giacomo , Borruso Giuseppe , Battino Silvia , Piani Giovanni Cristiano , Vianelli Donata
Published: June 2024

This study investigates the complex interplay among innovation, research and development (R&D), and entrepreneurship within the context of European nations. The focus of the study is also on the contributory role of tertiary educational institutions in nurturing entrepreneurial activities. To deepen the understanding of these multifaceted relationships and their subsequent impact on regional economies, the research introduces a novel metric termed the Innovation Readiness Environment (IRE) index. This index combines various indicators such as R&D expenditure, patenting rates, firm size, and educational levels, thereby providing a framework for evaluating firms' innovative capabilities and entrepreneurial success in a given region. Utilization of this index offers policymakers and stakeholders a nuanced understanding of the regional innovation ecosystem, facilitating the identification of strengths and deficiencies. This, in turn, enables the formulation of targeted policy interventions to enhance innovation and entrepreneurship. One relevant conclusion drawn from this study is the pivotal role of tertiary education in catalyzing entrepreneurial ventures. The findings posit that higher levels of entrepreneurial education significantly supplement an individual's likelihood of entrepreneurial success by imparting the requisite skills and knowledge indispensable in a competitive business milieu. By fostering an environment conducive to innovation, higher education institutions emerge as critical agents in cultivating entrepreneurial acumen and stimulating economic expansion. The study further incorporates a spatial analytical framework to elucidate the regional specificities of innovation at the pan-European scale.
Revision of metal-on-metal hip replacements with dual-mobility bearings and acetabular component retention
Authors: Fishley William , Nandra Rajpal , Carluke Ian , Partington Paul F. , Reed Mike R. , Kramer Derek J. , Wilson Matthew J. , Hubble Matthew J. W. , Howell Jonathan R. , Whitehouse Sarah L. , Petheram Timothy G. , Kassam Al-Amin M.
Published: June 2024

Aims

In metal-on-metal (MoM) hip arthroplasties and resurfacings, mechanically induced corrosion can lead to elevated serum metal ions, a local inflammatory response, and formation of pseudotumours, ultimately requiring revision. The size and diametral clearance of anatomical (ADM) and modular (MDM) dual-mobility polyethylene bearings match those of Birmingham hip MoM components. If the acetabular component is satisfactorily positioned, well integrated into the bone, and has no surface damage, this presents the opportunity for revision with exchange of the metal head for ADM/MDM polyethylene bearings without removal of the acetabular component.

Methods

Between 2012 and 2020, across two centres, 94 patients underwent revision of Birmingham MoM hip arthroplasties or resurfacings. Mean age was 65.5 years (33 to 87). In 53 patients (56.4%), the acetabular component was retained and dual-mobility bearings were used (DM); in 41 (43.6%) the acetabulum was revised (AR). Patients underwent follow-up of minimum two-years (mean 4.6 (2.1 to 8.5) years).

Results

In the DM group, two (3.8%) patients underwent further surgery: one (1.9%) for dislocation and one (1.9%) for infection. In the AR group, four (9.8%) underwent further procedures: two (4.9%) for loosening of the acetabular component and two (4.9%) following dislocations. There were no other dislocations in either group. In the DM group, operating time (68.4 vs 101.5 mins, p < 0.001), postoperative drop in haemoglobin (16.6 vs 27.8 g/L, p < 0.001), and length of stay (1.8 vs 2.4 days, p < 0.001) were significantly lower. There was a significant reduction in serum metal ions postoperatively in both groups (p < 0.001), although there was no difference between groups for this reduction (p = 0.674 (cobalt); p = 0.186 (chromium)).

Conclusion

In selected patients with Birmingham MoM hips, where the acetabular component is well-fixed and in a satisfactory position with no surface damage, the metal head can be exchanged for polyethylene ADM/MDM bearings with retention of the acetabular prosthesis. This presents significant benefits, with a shorter procedure and a lower risk of complications.

Cite this article: Bone Jt Open 2024;5(6):514–523.
Thermo-optic effect induced tunable phase controlled propagation of solitons in a Jaynes-Cummings-Hubbard model
Authors: Xiao Yujuan , Li Tianjun , Zhang Yujie , Zheng Anshou
Published: June 2024

The manipulation of light propagation has garnered significant attention in discrete periodic photon structures. In this study, we investigate the impact of an adjustable phase on soliton behavior within a one-dimensional (1D) coupled cavity array. Each cavity is doped with two-level qubits, and the system can be effectively described by a Jaynes-Cummings-Hubbard model (JC-Hubbard model). By numerically exploring the photonic phase, we reveal that it introduces an additional degree of flexibility in controlling soliton propagation. This flexibility encompasses dispersion relations, propagation direction, transverse velocity, and stability conditions. We observe that soliton styles transition with changes in the tunneling phase. At a phase of 0, solitons form due to the delicate balance between spatial dispersion and system nonlinearity. When the phase increases to π/2, solitons vanish because spatial dispersion is significantly suppressed. The underlying theory explains this suppression, which arises from the opposite phase ±θ. Interestingly, standard temporal solitons emerge in the discrete periodic cavity array. Our investigation has broader applicability extending to various discrete structures, encompassing but not limited to waveguide arrays and optomechanical cavity arrays.
MetaHDR: single shot high-dynamic range imaging and sensing using a multifunctional metasurface
Authors: Brookshire Charles , Liu Yuxuan , Chen Yuanrui , Chen Wei Ting , Guo Qi
Published: June 2024

We present MetaHDR, which is a single-shot high-dynamic range (HDR) imaging and sensing system using a multifunctional metasurface. The metasurface is capable of splitting an incident beam into multiple focusing beams with different amounts of power, simultaneously forming multiple low dynamic range (LDR) images with distinct irradiance on a photosensor. Then, the LDR images are jointly processed using a gradient-based HDR fusion algorithm, which is shown to be effective in attenuating the residual light artifacts incurred by the metasurface and the lens flare. MetaHDR achieves single-shot HDR photography and videography that increases the dynamic range by at least 50 dB compared to the original dynamic range of the photosensor. It can also perform single-shot HDR sensing, including reflectance calibration and surface curvature estimation of reflective materials. MetaHDR’s demonstrated functionalities could be broadly applied in surveillance and security, microscopic imaging, advanced manufacturing, etc.