bluuebunny/crossref_metadata_2025_split huggingface dataset:
SUPERA stent placement for salvaging early recurrent arteriovenous graft thrombosis after percutaneous transluminal angioplasty: A single-center study
Authors: Lee Hyoung Nam , Park Sung-Joon , Cho Youngjong , Lee Sangjoon 
Published: March 2023

Background: The aim of this study was to evaluate the patency of the helical interwoven SUPERA stent for salvaging prosthetic arteriovenous (AV) grafts with rapidly recurrent thrombotic occlusion developed within a short time period after successful percutaneous transluminal angioplasty. Methods: From December 2019 to September 2021, the data of 20 patients with AV graft who had the SUPERA stent inserted satisfying the following conditions were consecutively collected. (1) More than 1 year has passed since the AV access operation; (2) Thrombotic re-occlusion of AV graft occurred within 3 months after previous successful endovascular treatment; (3) Residual stenosis is greater than 30% after full effacement of balloon angioplasty in the primary lesion. Post-interventional target lesion primary patency (TLPP), access circuit primary patency (ACPP), and secondary patency (SP) were calculated. Results: Primary lesions of early recurrent arteriovenous graft thrombosis were found in 13 patients with graft–vein anastomosis, six patients with intra-graft stenosis, and one patient with outflow vein complications. The lesions showed residual stenosis in 47.4% (interquartile range: 44.1%–55.3%) of patients despite full-effacement balloon angioplasty. Clinical success was achieved in all patients with full-expansion of the stents at the 1-month follow-up. The TLPP was 70.7% and 32% at 6 and 12 months, respectively, and ACPP was 47.5% and 6.8% at 6 and 12 months, respectively. The SP was 76.1% and 57.1% at 6 and 12 months, respectively. No cannulation complications occurred in the six patients with installation inside the graft. No hemodialysis or stent fracture occurred in any patient during the follow-up period. Conclusions: The SUPERA stent may have a role in salvaging AV grafts with early recurrent thrombosis due to its greater radial force and its conformability and can be useful in treating stenosis involving the elbow or axilla, with fair patency and low complication rates.
HIV Sero-Status of Health Care Workers in Addis Ababa Public Hospitals After Post-Exposure Blood and Body Fluids: A Cross-Sectional Study, October 2022
Authors: Adal Ousman , Abebe Asmamaw 
Published: March 2023

Objectives: The study investigated the sero-status of human immunodeficiency virus among healthcare workers in Addis Ababa public hospitals. Methods: A multi-centered, institutional-based cross-sectional study was conducted from September 18, 2022, to October 30, 2022. A simple random sampling method and semi-structured, self-administered questionnaires were used to collect the data, which were analyzed using statistical package for social science version 25. A binary logistic regression model was used to identify factors associated with the sero-status of healthcare workers’ post-exposure blood and body fluids for the human immunodeficiency virus. Results: Of the 420 study participants who were exposed to blood and body fluids, 403 (96%) were non-reactive. Healthcare workers who had 20 to 29 years of work experience had approximately 6 times higher odds of testing positive for human immunodeficiency virus (AOR = 6.21, 95% CI: (2.39, 9.55). Healthcare workers who did not use personal protective equipment properly had 5 times higher odds of testing positive for human immunodeficiency virus (AOR = 5.02, CI: 3.73, 9.51). Conclusion: This study showed that a higher proportion of healthcare workers at the emergency department were positive for human immunodeficiency virus infection among healthcare workers who were exposed to blood and body fluids and tested immediately. Healthcare workers who did not use personal protective equipment properly had higher odds of testing positive for human immune-deficiency virus.
Evaluation of physical, mechanical, and thermal properties of woven kenaf/bio-epoxy composites
Authors: Abare Alhassan Yakubu , Jawaid Mohammad , Hamid Norul Hisham , Bakar Balkis Fatomer A , Ismail Ahmad Safwan , Sarmin Siti Noorbaini , Fouad Hassan , Midani Mohamad 
Published: March 2023

The demand for eco-friendly materials in many sectors is due to the age-long usage of synthetic materials, which has so many negative impacts on the environment, high energy consumption, and health concerns. The physical, mechanical, morphological, and thermal properties of woven kenaf fibre reinforced bio-epoxy composites are investigated in this study. The bio-composites were produced utilizing a manual lay-up process with varying fibre loading percentages of 30%, 35%, and 40%. Pure Bio-epoxy composites were also prepared as a reference. Physical, mechanical, morphological, and thermal characteristics were assessed. The density and water absorption of the bio-composites increase as the fibre loading increased. The highest density (1.2559 g/cm3) was shown by 40% fibre loading which also exhibited the highest water absorption of 9.8%. Furthermore, the void content revealed that the pure bio-epoxy has the highest value of 3.16% as compared to kenaf/bio-epoxy composites. The highest tensile strength and Young’s modulus was recorded by 40% fibre loading with 92.47 MPa and 9.18 GPa respectively. Impact properties also show enhancement with the increase in fibre loading, it showed the highest impact strength of 7280.8 J/m2 at 40% fibre loading. Scanning electron microscopy (SEM) of the tensile fracture indicates that 40% fibre loading shows better fibre and bio-epoxy inter facial bonding because of its higher strength. The Initial decomposition temperature (IDT) of the bio-composites happens at about 230°C–280°C, and the Final decomposition temperature (FDT) is 540°C–560°C which is lower when compared to the pure bio-epoxy composites of 279°C and 560°C. Kenaf/bio-epoxy composites with 40% fibre loading show the best physical and mechanical and thermal properties. Based on our findings, we believe that our green bio-composites has the potential to be employed in various industries such as automobiles, construction and packaging.
Performing Identity or Performing Relationships? Rethinking Performance Theory in Social Media Studies
Authors: Kaplan Danny 
Published: March 2023

Much of the discussion of performance and collective action presupposes a hierarchical performer–audience structure along the lines of Durkheimian public events intended to reaffirm a collective identity. Scholars have generally overlooked an alternative, horizontal formulation of ‘performance of relationships’ in which viewers serve as a third party to the social exchange. While such a performance is central to social media interactions, most studies of performance on social media focus on the presentation of self and the affirmation of personal identity rather than the performance of relationships. To demonstrate and address this gap, this article provides a typology of four theoretical approaches to performance: performing the self, performing values, performing friendship, and performing complicity. These approaches are placed along two dimensions – an individual versus collective focus and an identity versus relationship focus – and employed in relation to recent studies on social media and collective action. The article suggests that the performance of relationship approach might equally account for societal solidarity, understood not only as a byproduct of identity affirmation but also as a direct consequence of concrete social relationships.
Situating the Atrium: A Cultural Political Economy
Authors: Jones Paul 
Published: March 2023

Effectively a double-height or larger void internal to a building, the atrium is a familiar architectural feature the world over. The global popularity of the space in contemporary urban buildings – including hotels, shopping malls, casinos, hospitals, museums, galleries, libraries, schools, office blocks, and universities – is a somewhat puzzling development, and one ripe for sociological analysis. Cultural political economy (CPE) helps to explain this affinity. Using this perspective guards against reductionisms of various stripes, while rigorously situating the atrium vis-a-vis the production and circulation of material and symbolic surplus value. By facilitating inquiry into how this architectural form stabilises and furthers capitalist arrangements, CPE allows for interrogation of the atrium’s distinctive role in adding momentum and cultural meaning to contemporary urban accumulative strategies. In particular, the article draws out the atrium space’s paradoxical relationships to (i) the intensification of rentiership in very tall buildings, and (ii) with respect to the demarcation of insider–outsider boundaries underpinning elite consumption. Positioning the atrium as being reflective of attempts to both intensify and embed capitalism in the built environment, key arguments concern the meaningful, experiential and out-of-the ordinary nature of the space, As such, the article contributes to and draws from sociologies of architecture, reconciling the atrium’s materiality and meaning in a way that does not reduce either to the other.
Distal humeral corrective osteotomy for treatment of supracondylar fracture malunions in children
Authors: Tarabishi Mohammed M , Almigdad Ahmed K , Ganger Rudolf , Farr Sebastian 
Published: March 2023

Purpose: This study aimed to determine the functional and radiographic outcomes following corrective distal humeral osteotomies for the treatment of supracondylar fracture malunions in children. We hypothesized that such secondary reconstructive procedures could restore a reasonable and near-normal amount of functionality in a large patient cohort at a tertiary referral center. Methods: We retrospectively reviewed the clinical and radiological records of 38 children who underwent corrective osteotomy for posttraumatic supracondylar humeral malunion using K-wire fixation. All clinical data were extracted after chart review, including age, sex, dominant side whenever available, follow-up duration, and elbow range of motion preoperatively and at the final visit. Radiographic parameters, including Baumann’s angle, humeroulnar angle, humerocondylar angle, and elbow range of motion were evaluated preoperatively, postoperatively, and at the final visit to identify the surgical correction outcomes. Results: The mean age of the patients at fracture was 5.6 (±2.7) years, and the mean age at surgical intervention was 8.6 (±2.6) years. The mean follow-up period of the current series was 28.2 (±31.1) months. Baumann’s angle, humeroulnar angle, and humerocondylar angle were successfully restored to physiological ranges (72.6°, 5.4°, and 36.1°, respectively). Postoperatively, elbow extension improved from -22° (±5.7) to -2.7° (±7.2) versus flexion from 115° (±13.2) to 128.2° (±11.1). Three revision surgeries (8%) were encountered. Conclusions: Corrective osteotomy of the distal humerus with K-wire fixation is a reliable method to efficiently correct malunion of the distal humerus in different planes, thereby improving elbow range of motion and appearance. Level of evidence: level IV: Retrospective therapeutic study.
Vacuum-Assisted Needle-Free Capillary Blood Sampling
Authors: Hoffman Michael , McKeage James , Ruddy Bryan , Nielsen Poul , Taberner Andrew 
Published: March 2023

Background: Poor glycemic management persists among people practicing insulin therapy in relation to type 1 and 2 diabetes despite a clear relationship with negative health outcomes. Skin penetration by jet injection has recently been shown as a viable method for inducing blood release from fingertips. This study examines the use of vacuum to enhance the volume of blood released and quantifies any dilution of the collected blood. Methods: A single-blind crossover study involving 15 participants, each receiving four different interventions, was conducted wherein each participant served as their own control. Each participant experienced fingertip lancing and fingertip jet injection, both with and without applied vacuum. Participants were divided into three equal groups to explore different vacuum pressures. Results: This study found that glucose concentration in blood collected under vacuum following jet injection and lancing were equivalent. We found that applying a 40 kPa vacuum following jet injection produced a 35-fold increase in the collected volume. We determined the limited extent to which the injectate dilutes blood collected following jet injection. The mean dilution of blood collected by jet injection was 5.5%. We show that jet injection is as acceptable to patients as lancing, while being equally suited for conducting glucose measurements. Conclusions: Vacuum significantly enhances the volume of capillary blood released from the fingertip without any difference in pain. The blood collected by jet injection with vacuum is equivalent to that from lancing for glucose measurement purposes.
Degree of obesity and gastrointestinal adverse reactions influence the weight loss effect of liraglutide in overweight or obese patients with type 2 diabetes
Authors: Zhou Fang , Jiang Lu , Guo Jiamei , Fan Yuting , Pan Qin , Li Tianlian , Sun Xiaoshi , Li Ping 
Published: March 2023

Background: Liraglutide can effectively reduce the weight of patients with type 2 diabetes. Nonetheless, its weight loss effect was highly heterogeneous in different patients in the clinical practice. Objective: To identify the factors most associated with the weight loss effect of liraglutide in obese or overweight patients with type 2 diabetes with poorly controlled oral medication in northeast China. Design: A prospective study. Methods: A prospective study was performed in subjects with type 2 diabetes who were taking oral medication and had a body mass index (BMI) of ⩾24 kg/m2. Liraglutide was administered for at least 12 weeks, while the original hypoglycemic regimen was kept unchanged (Phase I). Later, liraglutide treatment was continued or stopped as necessary or as subjects thought fit in the 13–52 weeks that followed (Phase II), and the potential factors affecting the effect of weight loss of liraglutide were analyzed. Results: Of the 127 recruited subjects, 90 had comprehensive follow-up data at week 12. In Phase I, the subjects’ blood sugar levels and weight decreased significantly( P < 0.001). Among all the significant factors, the gastrointestinal adverse reactions score (GARS) was more correlated with BMI change (ΔBMI; r = 0.43) and waist circumference change (ΔWC; r = 0.32) than the baseline BMI (BMI0) and WC (WC0). At week 12, linear regression showed that BMI0 independently affected ΔBMI and ΔWC, whereas WC0 only affected ΔWC. The GARS was significantly associated with ΔBMI and ΔWC, and this association continued until week 52, even after most subjects had discontinued liraglutide treatment. Conclusion: The degree of obesity and gastrointestinal adverse reactions were the most promising predictors of weight loss in liraglutide treatment.
Prevalence of low back pain among medical doctors of the teaching hospitals in Karachi, Pakistan: A cross-sectional survey
Authors: Javed Salman , Dawood Muhammad Hamza , Memon Muhammad Waseem , Selod Ibrahim Zahid , Seja Arshi 
Published: March 2023

Objective: Our goal was to deduce the prevalence of low back pain among medical doctors in the teaching hospitals of Karachi, Pakistan, along with its associated variables and the functional disability accompanying it. Methods: This cross-sectional study was conducted among medical doctors from Creek General Hospital and United Hospital, affiliated with United Medical and Dental College, Karachi, Pakistan. A sample of 80 participants was included in this study, and a non-probability convenient sampling with randomization was utilized. Using a three-part questionnaire that included the Oswestry Disability Index, all participants were scrutinized for low back pain with its characteristics, associated risk factors, and functional disability. Results: Seventy percent of medical doctors included in this study suffered from the problem of low back pain, with 68% experiencing it over the last 3 months to 1 year. Furthermore, 89% and 11% suffered from minimal and moderate disability, respectively, affecting day-to-day and work life. Moreover, this study also found a significantly positive association ( p value < 0.05*) of low back pain with age and work-related characteristics and was more common in those with work experience between 1 and 10 years, >8 working hours, >4 standing hours, and belonging to the surgery and medicine specialties. The association was significantly positive according to the chi-square/Fischer exact test. Conclusion: Our study addressed the evidence that low back pain is prevalent among medical doctors in teaching hospitals in Karachi, Pakistan, potentially affecting patient treatment and student education and accentuating the need for further intervention and research among doctors worldwide.
Impact of COVID-19 Pandemic on Treatment and Outcome of Fragility Hip Fractures In Non-COVID Patients: Comparison Between the Lockdown Period, a Historical Series and the “Pandemic Normality” in a Single Institution
Authors: Troiano Elisa , De Sensi Alice Giulia , Zanasi Francesco , Facchini Andrea , De Marco Giulia , Colasanti Giovanni Battista , Mondanelli Nicola , Giannotti Stefano 
Published: March 2023

Introduction The COVID-19 pandemic has affected and is still deeply affecting all aspects of public life. World governments have been forced to enact restrictive measures to stem the contagion which have led to a decrease in the movement of people within national territory and to a redirection of health care resources with a suspension of non-urgent procedures. In Italy, a lockdown was imposed from March 9th to May 3rd, 2020. As a result, a significant reduction in the overall operative volume of orthopedic trauma was expected, but it was not possible to predict a similar trend regarding fragility fractures of the proximal femur in the elderly. Methods The aim of this paper was to examine the impact of COVID-19 on the operating volume for trauma surgeries and to determine how the pandemic affected the management of fragility hip fractures (FHFs) in non-COVID patients at a single Institution. Results The first result was a statistically significant reduction in the overall operative volume of orthopedic trauma during the period of the first lockdown and an increase in the mean age of patients undergoing surgery, as expected. As regard to the second aim, the incidence of FHFs remained almost unchanged during the periods analysed. The population examined were superimposable in terms of demographics, comorbidities, type of fracture, peri-operative complications, percentage of operations performed within 48 hours from hospitalization and 1-year outcome. Discussion Our results are in line with those already present in the Literature. Conclusions Our study revealed a significant impact of the restrictive anti-contagion measures on the overall orthopedic surgical volume, but, at the same time, we could affirm that the pandemic did not affect the management of FHFs in non-COVID patients, and their results.
NIR-triggerable self-assembly multifunctional nanocarriers to enhance the tumor penetration and photothermal therapy efficiency for castration-resistant prostate cancer
Authors: Li Shuqiang , Ma Yan , Ma Chao , Shi Lei , Li Fan , Chang Liansheng 
Published: March 2023

AbstractGreat challenges still remain in the management of patients with castration-resistant prostate cancer (CRPC) based on traditional treatments, and the rapid development of nanotechnology may find a breakthrough. Herein, a novel type of multifunctional self-assembly magnetic nanocarriers (IR780-MNCs) containing iron oxide nanoparticles (Fe3O4 NPs) and IR780 iodide was synthesized by an optimized process. With a hydrodynamic diameter of 122 nm, a surface charge of –28.5 mV and the drug loading efficiency of 89.6%, IR780-MNCs have increased cellular uptake efficiency, long-term stability, ideal photothermal conversion ability and excellent superparamagnetic behavior. The in vitro study indicated that IR780-MNCs have excellent biocompatibility and could induce significant cell apoptosis under the 808 nm laser irradiation. The in vivo study showed that IR780-MNCs highly accumulated at the tumor area could reduce the tumor volume of tumor-bearing mice by 88.5% under the 808 nm laser irradiation, but minimal damage to surrounding normal tissues. Since IR780-MNCs encapsulated a large number of 10 nm homogeneous spherical Fe3O4 NPs, which can be used as T2 contrast agent, the best window for photothermal therapy can be determined through MRI. In conclusion, IR780-MNCs have initially showed excellent antitumor effect and biosafety in the treatment of CRPC. This work provides novel insights into the precise treatment of CRPC by using a safe nanoplatform based on the multifunctional nanocarriers.
Perivascular fat attenuation index measured by coronary computed tomography angiography as a tool for assessment of ischaemia-causing lesions: a case report
Authors: Okamoto Shuichi , Mochizuki Junji , Matsumi Hiroaki , Hashimoto Katsushi , Nikaido Akira , Hata Yoshiki 
Published: March 2023

Abstract
Background
It can be difficult to diagnose coronary artery disease in patients with acute coronary syndrome if coronary angiography does not identify stenosis. Coronary inflammation, which can contribute to the pathogenesis of coronary artery disease and acute coronary syndrome, can be quantified using the perivascular fat attenuation index. Furthermore, the perivascular fat attenuation index is a marker for all-cause mortality, cardiac-related mortality and impaired global coronary flow reserve.

Case presentation
Here we report a case of a patient presenting with symptoms of acute coronary syndrome. The patient had hypokinesis of the lateral-posterior wall of the left ventricle, decreased myocardial perfusion in the posterior wall myocardium and elevated myocardial troponin-T and creatine phosphokinase levels. However, coronary computed tomography angiography did not identify arterial stenosis. The patient did have an increased perivascular fat attenuation index, indicating coronary inflammation. Moreover, the fat attenuation index was higher around the left circumflex artery than around the right coronary artery or left anterior descending artery. Intravascular ultrasonography identified an intramural haematoma, leading to a diagnosis of type 3 spontaneous coronary artery dissection in the left circumflex artery.

Conclusions
Perivascular fat attenuation index may be a useful tool to help identify and localise disease-causing lesions, and to direct further testing to confirm a diagnosis of spontaneous coronary artery dissection in acute coronary syndrome patients without significant arterial stenosis.