bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exploring COVID-19 anxiety across demographics: psychometric validation and application of the COVID-19-Anxiety Questionnaire in Arabic
Authors: Fadhel Fahmi H. , Soliman Abdrabo , Alqahtani Mohammed M. J. 
Published: September 2024

AbstractBackgroundThe emergence of the COVID-19 pandemic in 2019 imposed significant shifts in global health, particularly in understanding and addressing anxiety disorders precipitated by pandemic-related stressors. The current study aimed to adapt and validate the COVID-19 Anxiety Questionnaire (C-19 A) for Arabic-speaking populations (C-19 A-A), assessing its structural integrity, concurrent validity, factorial validity, and reliability.MethodsThe data of 571 individuals, including age range, educational history, gender, and marital status, were collected through online platforms. The translation process of C-19 A-A underwent rigorous verification by linguistic and subject matter experts. Several advanced statistical procedures were used to examine the C-19 A-A’s reliability, validity, and measurement invariances across demographic subsets.ResultsThe results indicated robust internal consistency, with a Cronbach’s alpha coefficient of 0.889, confirming the questionnaire’s reliability. Concurrent validity showed significant and positive correlations between C-19-A and FCV-19S (r = 0.77,p < 0.000). EFA revealed a dominant factor explaining 60.4% of the variance, bolstering the questionnaire’s factorial validity. CFA further validated the model’s adequacy across different demographic groups. Specifically, demographic factors such as age, gender, and educational level showed distinct patterns of COVID-19-related anxiety.ConclusionThe validated Arabic version of the C-19 A-A represents a pivotal tool for assessing pandemic-induced anxiety within Arabic-speaking communities. Its deployment enables targeted identification of vulnerable individuals, facilitating tailored health interventions and informing clinical strategies. This research underscores the pivotal role of culturally attuned assessment instruments in shaping effective public health responses and therapeutic interventions aimed at mitigating the psychological sequelae of global health crises.
Fever of unknown origin in pediatrics: causes and clinical characteristics in a single centre experience
Authors: Shoman Walaa , Galal Ashraf , Elshishiny Arwa Mahmoud , Hamza Eman 
Published: September 2024

Abstract
Background
Fever of unknown origin (FUO) is a common condition worldwide in children that remains a diagnostic challenge. The causes of FUO vary depending on the patient's age, residency, and the time of study. Therefore, this study aimed to identify the common aetiologies of FUO at Alexandria University Children’s Hospital under the current diagnostic abilities and newly emerging diseases.

Methods
The current prospective observational study included all children fulfilling the definition of FUO admitted at Alexandria University Children's Hospital from January 2020 to December 2021 using a steps approach for investigations.

Results
A total of 110 children with fever of unknown origin (FUO) were included in this study; the average duration of fever was 36.76 ± 31.73 days. In most of the enrolled cases 105/110 (95.4%) the definite etiology of FUO was identified. The common causes were collagen vascular diseases (30.9%), infectious diseases (28.2%), miscellaneous conditions (19.1%), and malignancy (17.3%). Among collagen vascular diseases, systemic lupus erythematosus (SLE) (47.1%) and systemic onset juvenile idiopathic arthritis (sJIA) (38.2%) were the most common. In the infectious category, Katayama fever (16.1%), brucellosis (12.9%), and urinary tract infection (UTI) (12.9%) were the most frequently observed. Post-Covid MIS-C (52.4%) was the most common in the miscellaneous category. Children in the infectious category had significantly higher neutrophil [5.76 (2.28–7.92) × 10^3/µl] and lymphocytic counts [ 4.2 (2.04–5.91) × 10^3/µl]; (P < 0.001 and < 0.010 respectively). Moreover, in the collagen category the median lymphocytic count was lower [1.95 (1.47–2.73) × 10^3/µl] with a significantly (P < 0.010) higher neutrophil/ lymphocyte ratio [2.30 (1.53–3.91)].

Conclusion
Collagen vascular diseases, infectious diseases, miscellaneous, and malignancy were the most common causes of FUO. Katayama fever, urinary tract infections (UTI), and brucellosis were the most common causes in the infectious category. Post-Covid MIS-C and hemophagocytic lymphohistiocytosis were the most common diagnoses in the miscellaneous category.
Exploring molecular interactions and ADMET profiles of novel MAO-B inhibitors: toward effective therapeutic strategies for neurodegenerative disorders
Authors: Raza Amir , Chaudhary Jitendra , Khan Azmat Ali , Singh Mahaveer , Kumar Deepak , Malik Abdul , Wadhwa Pankaj 
Published: September 2024

Abstract
Background
Neurodegenerative disorders (NDs), primarily affecting the elderly, are marked by complex pathophysiological processes and are projected to become the second leading cause of death. Parkinson’s disease (PD), one of the most common NDs, is characterized by motor impairments due to reduced dopamine levels in the substantia nigra (SN), a crucial midbrain region involved in motor control and reward mechanisms. PD also impacts cognitive functions, potentially leading to depression and sleep disturbances. Recent research highlights the importance of MAO-B inhibitors in PD management, as these enzymes play a critical role in regulating neurotransmitter levels by catalyzing the oxidative deamination of intracellular amines and monoamine neurotransmitters.

Result
Computational virtual screening of several quinoline-based ligands against the target protein MAO-B (PDB ID: 1OJA) was performed using molecular docking simulation and ADMET studies to identify promising inhibitors for neurodegenerative disease treatment. The most active hit, Compound PA001, exhibited a MolDock score of − 207.76 kcal/mol. Subsequent investigation of 6-methoxy-2-(4-phenylpiperazin-1-yl)quinoline (Compound PA001) using molecular dynamics (MD) simulations with GROMACS revealed potent inhibition and significant interactions at key active site residues. MD simulations confirmed the stability of the Compound PA001-MAO-B complex under physiological conditions. Additionally, ADMET analysis demonstrated that Compound PA001 possesses favorable drug-like properties, including absorption, distribution, metabolism, excretion, and toxicity profiles. These findings underscore 6-methoxy-2-(4-phenylpiperazin-1-yl)quinoline (Compound PA001) as a promising candidate for developing new MAO-B inhibitors to treat neurodegenerative diseases.

Conclusion
The research highlighted 6-methoxy-2-(4-phenylpiperazin-1-yl)quinoline (Compound PA001) as a promising MAO-B inhibitor, exhibiting strong binding affinity, stability, and desirable drug-like characteristics for the treatment of neurodegenerative diseases. Among the top ten molecules, Compound PA001 was selected for molecular dynamics (MD) simulation using GROMACS. The compound showed potent inhibition, significant interactions with key active site residues, and stable complex formation under physiological conditions. ADMET analysis further confirmed its favorable pharmacokinetic profile.
Novel paradigm of therapeutic intervention for skin cancer: challenges and opportunities
Authors: Nasim Modassir , Khan Mariya , Parveen Rabea , Gull Azka , Khan Saba , Ali Javed 
Published: September 2024

Abstract
Background
Skin cancer continues to be an imperative global health issue, urging continuous exploration of treatment methodologies. Conventional treatments for skin cancer include surgical interventions, immunotherapy, targeted therapy, chemotherapy, and radiation therapy. However, these methods often present obstacles like treatment resistance, systemic toxicity, limited effectiveness in advanced stages, infection risk, pain, long recovery, and impact on healthy tissue.

Main body of the abstract
Nanomedicine holds promise by facilitating precise drug administration, early detection, and heightened therapeutic efficiency via targeted and localized delivery systems. The integration of nanomedicine into skin cancer alleviation therapies demonstrates optimistic outcomes, including refined drug delivery, augmented bioavailability, minimized adverse effects, and potential theranostic applications. Recent breakthroughs in nanomedicine have propelled advancements in skin cancer treatment, showing significant potential in transforming the treatment paradigm. The presents review provides comprehensive aspects of existing skin cancer treatments and their challenges, spotlighting recent breakthroughs propelled by nanomedicine.

Short conclusion
This abstract delineates the present landscape of skin cancer treatments, underscores their constraints, and highlights recent strides in nanomedicine that have the potential to transform the paradigm of skin cancer treatment, ultimately elevating patient prognosis. Importantly, the present review emphasizes substantial challenges that hinder the clinical translation of nanomedicines and suggests possible remedies to surpass them.

Graphic abstract
Research and application of rapid reconstruction technology to existing bridge guardrails based on UHPC connection
Authors: Li Yinggen , Li Zhiyong , Luo Zheng , Yu Nan 
Published: September 2024

AbstractA novel prefabricated segmental guardrail is proposed to facilitate connections between guardrails and between guardrails and bridge decks by casting ultrahigh-performance concrete (UHPC) joints in situ. Through finite element crash simulation analysis of three types of vehicles and crash tests of real vehicles, the prefabricated segmental guardrail with a UHPC connection was systematically evaluated in terms of its energy-absorbing capacity, vehicular acceleration, post-impact trajectory of the impacting vehicle, and behaviour of the guardrail upon impact. During the evaluation process, performance comparisons of the prefabricated segmental guardrails are made with the monolithic concrete guardrails. The results indicate that the performance of the prefabricated segmental guardrail with a UHPC connection was superior to that of the conventional concrete monolithic guardrails: it exhibited a higher level of crash performance, the occupants of the impacting vehicle were better protected, and the impacting vehicle exhibited better post-collision stability. Finally, the convenience of the prefabricated segmental guardrails with UHPC connections was proven in practical engineering applications.
Characterization of fresh biowastes for biogas production and environmental health in Niger Delta, Nigeria
Authors: Ogbole Faith Ajiebabhio , Ogbuta Anthony Anwuli , Okagbue Hilary Izuchukwu 
Published: September 2024

Abstract
Background
Environmental pollution is a public health problem in Niger Delta, Nigeria. Therefore, the aims of the present study were to: identify the major fresh biowastes in Bayelsa State, Niger Delta; quantify the biogas yields from mono-digestion and co-digestion of identified biowastes; determine the first day of biogas production during hydraulic retention time; assess pH variations during anaerobic digestion; and evaluate biogas flame colours.

Methods
Fifteen communities in Bayelsa State were randomly selected, and on-the-spot assessment and quantification of the biowastes found in each community were carried out daily per week. Mono-digestion of 20 kg of each biowaste and co-digestion of 10 kg of animal waste with 10 kg of plant waste were carried out respectively under anaerobic conditions. Cumulative biogas yield and pH were measured using a pH meter and weighing scale respectively. Biogas flame colours during combustion were visually assessed.

Results
Exactly 120.61 metric ton of fresh biowastes was found to be generated per week in Bayelsa State, Niger Delta. Industrial biowastes were the highest [47.6 tonnes, (39.46%)], followed by abattoir biowastes [33 tonnes (27%)], market and roadside sellers biowastes [25.5 tonnes (21.14%)], and farm biowastes [14.51 (12.03%)]. Biogas yields (kg) were: 0, 0, 0, 0, 0, 17, 14, 2, 18, 16, 17, 15 and 1 kg for palm oil mill effluent (POME), orange fruit waste (OFW), pineapple peels (PP), plantain peels, cassava mill effluent (CME), rumen digesta (RD), cow dung, sewage, PP-RD, plantain peels-cow dung, POME-rumen digesta, OFW-cow dung, and CME-sewage respectively. The first day of biogas production for RD, cow dung, sewage, PP-RD, plantain peels-cow dung, POME-RD, OFW-cow dung, and CME-sewage was on the 6th, 32nd. 56th, 1st, 26th, 18th, 25th, and 60th day of hydraulic retention time respectively. A dominant blue flame colour mixed reddish yellow or orange flames were found during biogas combustion. A slight increase in pH was found in all the biodigester media.

Conclusions
In the present study, a variety of biowastes yielding various quantities and qualities of biogas were identified in Bayelsa State, Niger Delta. The study’s findings have provided evidence-based data that might be explored as a road map and catalyst for policy creation against inadequate biowaste management and as sustainable alternatives to the expensive liquefied petroleum gas. The potential of current research study to be scaled up for commercial use is implicated in the present study.
Sexual Dimorphism in the Musculoskeletal System: Sex Hormones and Beyond
Authors: Plotkin Lilian I , Bruzzaniti Angela , Pianeta Roquelina 
Published: September 2024

Abstract
Mounting evidence indicates that whereas some fundamental aspects of bone cell differentiation and function are similar in females and males, there is a clear contribution of sex/gender on the effects of signaling molecules on bone mass and strength and, consequently, on the effects of pharmacologic approaches to treat skeletal disorders. However, until recently, most studies were designed and performed using only 1 sex, resulting in a scarcity of published information on sexual dimorphism of the musculoskeletal system, including the mandible/masticatory muscles and the axial and appendicular bones and skeletal muscles. Further, it is now recognized that scientific rigor requires the study of both males and females. Therefore, there is an increasing need to understand the molecular and cellular basis for the differential outcomes of genetic manipulations and therapeutic agent administration depending on the sex of the experimental animals. Studies have shown higher muscle mass, cancellous bone mass, and long bone width in males compared with females as well as different traits in the pelvis and the skull, which are usually used for gender identification in forensic anthropology. Yet, most reports focus on the role of sex hormones, in particular, the consequences of estrogen deficiency with menopause in humans and in ovariectomized animal models. In addition, emerging data is starting to unveil the effects of gender-affirming hormonal therapy on the musculoskeletal system. We summarize here the current knowledge on the sex/gender-dependent phenotypic characteristics of the bone and skeletal muscles in humans and rodents, highlighting studies in which side by side comparisons were made.
Nursing care of 80 years-old patient with type 2 diabetes at home
Authors: Ryś Bogusława , Górna Kamila , Bąk Ewelina , Kostka Julia 
Published: September 2024

Type 2 diabetes is one of the diseases of civilization that affects older people relatively more often. It is called the plague of the 21st century. As the body ages, insulin sensitivity decreases significantly, which often results in impaired insulin secretion in the body. Type 2 diabetes in the elderly is currently a major clinical problem. Improperly treated diabetes leads to many dysfunctions in the body, such as: diabetic nephropathy, coronary artery disease, and in some cases it may lead to atherosclerosis occlusive of the arteries of the lower limbs. The theoretical part of the work included information about type 2 diabetes. The practical part included a case report of an 80-year-old patient with type 2 diabetes.
Physical Activity in Pregnancy: The Role of Exercise in Promoting Maternal and Fetal Health
Authors: Dubińska Michalina , Paduch-Jakubczyk Wiktoria , Bilska Wiktoria , Ciułek Urszula , Dobosz Anna , Zduńczyk Wiktoria , Żydek Ada 
Published: September 2024

Introduction and Objective: There is no doubt that engaging in regular physical activity is beneficial for individuals of all ages. Pregnancy is a special time of life for most women. This period presents a unique opportunity for them to improve their lifestyle choices and adopt healthier habits such as exercise. The aim of this article is to find out if regular physical activity during pregnancy has a positive impact for both the mother and the baby.Review and Methods: Review and summary of available studies and meta-analyses found in open-access formats on Google Scholar and PubMed.State of Knowledge: The WHO defines physical activity as any bodily movement requiring energy expenditure, including during leisure, transport, work, and domestic activities. Regular exercise reduces the risk of noncommunicable diseases (NCDs) and poor health outcomes, while sedentary behavior contributes to this and burdens healthcare systems. For pregnant and postpartum women, physical movement decreases the risk of various complications, with no negative effects on birthweight or stillbirth risk.
Conclusions: Studies show that physical activity decreased risk of pre-eclampsia, gestational hypertension, gestational diabetes, excessive gestational weight gain, delivery complications, postpartum depression and newborn complications.
Auditing the microbiological quality of the air in operating theatres
Authors: Whyte William , Thomas Andrew M. 
Published: September 2024

The critical relationship between airborne microbiological contamination in an operating theatre and surgical site infection (SSI) is well known. The aim of this annotation is to explain the scientific basis of using settle plates to audit the quality of air, and to provide information about the practicalities of using them for the purposes of clinical audit. The microbiological quality of the air in most guidance is defined by volumetric sampling, but this method is difficult for surgical departments to use on a routine basis. Settle plate sampling, which mimics the mechanism of deposition of airborne microbes onto open wounds and sterile instruments, is a good alternative method of assessing the quality of the air. Current practice is not to sample the air in an operating theatre during surgery, but to rely on testing the engineering systems which deliver the clean air. This is, however, not good practice and microbiological testing should be carried out routinely during operations as part of clinical audit.Cite this article: Bone Joint J 2024;106-B(9):887–891.
Early Motion and Directed Exercise (EMADE) following ankle fracture fixation: a pragmatic randomized controlled trial
Authors: Matthews Paul A. , Scammell Brigitte E. , Coughlin Tim A. , Nightingale Jessica , Ollivere Ben J. 
Published: September 2024

AimsThis study aimed to compare the outcomes of two different postoperative management approaches following surgical fixation of ankle fractures: traditional cast immobilization versus the Early Motion and Directed Exercise (EMADE) programme.MethodsA total of 157 patients aged 18 years or older who underwent successful open reduction and internal fixation (ORIF) of Weber B (AO44B) ankle fractures were recruited to this randomized controlled trial. At two weeks post-surgical fixation, participants were randomized to either light-weight cast-immobilization or the EMADE programme, consisting of progressive home exercises and weekly advice and education. Both groups were restricted to non-weightbearing until six weeks post-surgery. The primary outcome was assessed using the Olerud-Molander Ankle Score (OMAS) questionnaire at 12 weeks post-surgery, with secondary measures at two, six, 24, and 52 weeks. Exploratory cost-effectiveness analyses were also performed.ResultsOverall, 130 participants returned their 12-week OMAS questionnaires. The mean OMAS was significantly higher in the EMADE group compared with the immobilized group (62.0 (SD 20.9) vs 48.8 (SD 22.5)), with a clinically meaningful mean difference of 13.2 (95% CI 5.66 to 20.73; p < 0.001). These differences were maintained at week 24, with convergence by week 52. No intervention-related adverse events, including instability, were reported.ConclusionThe EMADE programme demonstrated an accelerated recovery compared to traditional six-week cast immobilization for those who have undergone ORIF surgery to stabilize Weber B (AO44B) ankle fractures. The study found the EMADE intervention to be safe.Cite this article: Bone Joint J 2024;106-B(9):949–956.
Management of zone 2 fifth metatarsal fractures varies based on treating specialty
Authors: Kingery Matthew T. , Kadiyala Manasa L. , Walls Raymond , Ganta Abhishek , Konda Sanjit R. , Egol Kenneth A. 
Published: September 2024

AimsThis study evaluated the effect of treating clinician speciality on management of zone 2 fifth metatarsal fractures.MethodsThis was a retrospective cohort study of patients with acute zone 2 fifth metatarsal fractures who presented to a single large, urban, academic medical centre between December 2012 and April 2022. Zone 2 was the region of the fifth metatarsal base bordered by the fourth and fifth metatarsal articulation on the oblique radiograph. The proportion of patients allowed to bear weight as tolerated immediately after injury was compared between patients treated by orthopaedic surgeons and podiatrists. The effects of unrestricted weightbearing and foot and/or ankle immobilization on clinical healing were assessed. A total of 487 patients with zone 2 fractures were included (mean age 53.5 years (SD 16.9), mean BMI 27.2 kg/m2 (SD 6.0)) with a mean follow-up duration of 2.57 years (SD 2.64).ResultsOverall, 281 patients (57.7%) were treated by orthopaedic surgeons, and 206 patients (42.3%) by podiatrists. When controlling for age, sex, and time between symptom onset and presentation, the likelihood of undergoing operative treatment was significantly greater when treated by a podiatrist (odds ratio (OR) 2.9 (95% CI 1.2 to 8.2); p = 0.029). A greater proportion of patients treated by orthopaedic surgeons were allowed to immediately bear weight on the injured foot (70.9% (178/251) vs 47.3% (71/150); p < 0.001). Patients treated by podiatrists were immobilized for significantly longer (mean 8.4 weeks (SD 5.7) vs 6.8 weeks (SD 4.3); p = 0.002) and experienced a significantly longer mean time to clinical healing (12.1 (SD 10.6) vs 9.0 weeks (SD 7.3), p = 0.003).ConclusionAlthough there was considerable heterogeneity among zone 2 fracture management, orthopaedic surgeons were less likely to treat patients operatively and more likely to allow early full weightbearing compared to podiatrists.Cite this article: Bone Joint J 2024;106-B(9):942–948.