bluuebunny/crossref_metadata_2025_split huggingface dataset:
Psychometric Properties and Measurement Invariance of the LIVES Daily Hassles Scale in Chinese Samples
Authors: Liu Kang , Yu Xiaofang , Cai Yan , Tu Dongbo 
Published: March 2023

Daily hassles have a larger effect on our health and well-being than those major events in daily life. The present study aimed to evaluate the psychometric properties and measurement invariance of the LIVES Daily Hassles Scale (LIVES-DHS) in Chinese samples, which consisted of 815 people at work aged between 20 and 60 years old. The results of both Explanatory Factor Analysis and Confirmatory Factor Analysis showed that the five-factor model solution was better than other solutions, which supported the original structure of LIVES-DHS. The Cronbach’s alpha coefficients of the five subdimensions varied between.721 and.818, with the entire scale of.920, and McDonald’s [Formula: see text] values of the five subdimensions varied between.716 and.821, with the entire scale of.936. The results also showed the support for measurement invariance of the five-factor model across different groups, which is the first to offer evidence for configural, metric, scalar and strict invariance of LIVES-DHS across gender, age and educational groups.
“Wearing-off” efficacy of CGRP monoclonal antibodies for migraine prevention: A meta-analysis of randomized controlled trials
Authors: Asawavichienjinda Thanin , Sathitratanacheewin Seelwan , Chokesuwattanaskul Ronpichai 
Published: March 2023

Background A new migraine prevention, CGRP monoclonal antibodies (mAbs), is injectable on a monthly or quarterly basis. In clinical practice, some patients reported that drug effectiveness does not last until the upcoming scheduled injection, a so-called “wearing-off” effect. We aimed to evaluate the wearing-off effect of the CGRP mAbs for migraine prevention in patients with different monthly migraine days. Methods We conducted a literature search for studies that reported migraine frequency after CGRP monoclonal antibody administration from MEDLINE, SCOPUS, Web of Science, and Cochrane Database from inception through February 2022. A meta-analysis, random-effects model was applied to assess the difference in migraine frequency between early and later weeks after medication to assess the presence of a wearing-off effect. Risk ratio was calculated to report the pooled treatment effect. Results Four studies were entered for the analysis, comprising 2409 patients in randomized controlled trials. There was no association between CGRP mAbs and wearing-off effect in patients with galcanezumab with a pooled risk ratio of 1.29 (95% CI 0.73 to 2.28) compared to placebo group. However, there was an association between galcanezumab and wearing-off effect in patients with chronic migraine with a pooled risk ratio of 1.91 (95% CI 1.11 to 3.28) compared to placebo group. Conclusion In this meta-analysis, there was a wearing-off efficacy of galcanezumab but only in a small percentage of patients with chronic migraine in randomized controlled trials.
Effect of Posterior Tibial Slopes on Graft Survival Rates at 10 Years After Primary Single-Bundle Posterior Cruciate Ligament Reconstruction
Authors: Yoon Kyoung Ho , Lee Jong-Hwan , Kim Sang-Gyun , Park Jae-Young , Lee Hee-Sung , Kim Sang Jin , Kim Yoon-Seok 
Published: March 2023

Background: Recent biomechanical studies have reported that stress on the posterior cruciate ligament (PCL) graft increases as the posterior tibial slope (PTS) decreases (flattened) in knees with single-bundle (SB) and double-bundle PCL reconstruction. Clinical studies of SB PCL reconstruction have shown that a flattened PTS is associated with a lesser reduction in posterior tibial translation. There is no long-term study on the clinical outcomes and graft survival rates of SB PCL reconstruction based on the medial and lateral PTSs measured on magnetic resonance imaging. Hypothesis: Flattened medial and lateral PTSs are associated with poor clinical outcomes and graft survival rates at a minimum 10-year follow-up after SB PCL reconstruction. Study Design: Cohort study; Level of evidence, 3. Methods: In this cohort study, we retrospectively reviewed 46 patients (mean age, 28.8 ± 9.9 years) who underwent primary SB PCL reconstruction between 2000 and 2009. They were followed up for a minimum of 10 years. The medial and lateral PTSs were measured on preoperative magnetic resonance imaging. As a previous study reported that a steeper medial or lateral PTS showed a higher risk of anterior tibial translation at thresholds of 5.6° and 3.8°, respectively, the patients were divided into 2 groups based on the cutoff values of both the medial (≤5.6° vs >5.6°) and lateral (≤3.8° vs >3.8°) PTSs. Clinical scores (International Knee Documentation Committee subjective score, Lysholm score, and Tegner activity score), radiological outcomes (side-to-side difference [SSD] on stress radiography and osteoarthritis progression), and graft survival rates were compared between the groups at the last follow-up. Results: All clinical scores and the progression of osteoarthritis demonstrated no significant difference between the 2 subgroups of both the medial and lateral PTS groups. The mean SSD on stress radiography after SB PCL reconstruction was significantly greater in patients with a medial PTS ≤5.6° than in patients with a medial PTS >5.6° (8.4 ± 3.9 vs 5.1 ± 2.9 mm, respectively; P = .030), while the lateral PTS subgroups after SB PCL reconstruction demonstrated no significant difference. The minimum 10-year graft survival rate was significantly lower in patients with a medial PTS ≤5.6° (68.4% vs 92.6%, respectively; P = .029) and a lateral PTS ≤3.8° (50.0% vs 91.7%, respectively; P = .001). Conclusion: A flattened medial PTS (≤5.6°) was associated with an increased SSD on stress radiography, and both flattened medial (≤5.6°) and lateral (≤3.8°) PTSs resulted in lower graft survival rates at a minimum 10-year follow-up after primary SB PCL reconstruction.
Distal Clavicle Autograft Versus Traditional and Congruent Arc Latarjet Procedures: A Comparison of Surface Area and Glenoid Apposition With 3-Dimensional Computed Tomography and 3-Dimensional Magnetic Resonance Imaging
Authors: Kim Billy I. , Hudson Caroline P. , Taylor Dean C. , Anakwenze Oke , Dickens Jonathan F. , Lau Brian C. 
Published: March 2023

Background: Limited studies have compared graft-glenoid apposition and glenoid augmentation area between the Latarjet procedure and distal clavicle graft in glenohumeral stabilization. Additionally, preoperative planning is typically performed using computed tomography (CT), and few studies have used 3-dimensional (3D) magnetic resonance imaging (MRI) reformations to assess graft dimensions. Purpose: The purpose of this study was 2-fold: (1) to compare bony apposition, glenoid augmentation, and graft width among coracoid and distal clavicle bony augmentation techniques and (2) to determine the viability of 3D MRI to assess bone graft dimensions. Study Design: Controlled laboratory study. Methods: A total of 24 patients with recurrent glenohumeral instability and bone loss were included in this study. 3D CT and 3D MRI reformations were utilized to measure pertinent dimensions for 5 orientations of coracoid and distal clavicle autografts: (1) standard Latarjet procedure (SLJ), (2) congruent arc Latarjet procedure (CLJ), (3) distal clavicle attached by its posterior surface (DCP), (4) distal clavicle attached by its inferior surface (DCI), and (5) distal clavicle attached by its resected end (DCR). Glenoid augmentation was defined as the graft surface area contributing to the glenoid. Bone-on-bone apposition was defined as the graft-glenoid contact area for bone healing potential, and graft width was pertinent for fixation technique. Glenoid bone loss ranged from 0% to 34%. Paired t tests were used to compare graft sizes between patients and compare 3D CT versus 3D MRI measurements. Results: The CLJ had the largest graft surface area (mean, 318.41 ± 74.44 mm2), while the SLJ displayed the most bone-on-bone apposition (mean, 318.41 ± 74.44 mm2). The DCI had the largest graft width (mean, 20.62 ± 3.93 mm). Paired t tests revealed no significant differences between the Latarjet techniques, whereas distal clavicle grafts varied significantly with orientation. All 3D CT and 3D MRI measurements were within 1 mm of each other, and only 2 demonstrated a statistically significant difference (coracoid width: 13.03 vs 13.98 mm, respectively [ P = .010]; distal clavicle thickness: 9.69 vs 10.77 mm, respectively [ P = .002]). 3D CT and 3D MRI measurements demonstrated a strong positive correlation ( r > 0.6 and P < .001 for all dimensions). Conclusion: Glenoid augmentation, bony apposition, and graft width varied with coracoid or distal clavicle graft type and orientation. Differences between 3D CT and 3D MRI were small and likely not clinically significant. Clinical Relevance: 3D MRI is a viable method for preoperative planning and graft selection in glenoid bone loss.
Study on fabricating epoxy coatings reinforced with iron oxide flakes and nano silica
Authors: Le Huy Cuong H , Thanh An T 
Published: March 2023

Flake micaceous iron oxide (MIO) pigment is a natural flake pigment, together with nano silica (NS) used to increase mechanical properties and corrosion resistance of coatings based on epoxy resin Epotec YD011X75 cured with Domide G5022. MIO and NS were dispersed into epoxy resin Epotec YD011X75 by mechanical stirring combined with ultrasonic vibration. The structural morphology of the materials was characterized by Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS), and Transmission Electron Microscopy (TEM). Functional groups in epoxy/curing agent/MIO polymers analyzed using Fourier Transform Infrared Spectroscopy (FTIR). The thermal property of the material is evaluated by Thermogravimetric and Differential Scanning Calorimetry (TG-DSC). Epoxy coatings with flake micaceous oxide iron, nano silica, phosphate zinc pigment (P), talc filler powder (T), additives, and solvents are prepared by grinding and mechanical stirring. The mechanical properties of epoxy coatings were evaluated by standards for epoxy coatings. The anti-corrosion properties of the coatings on steel were evaluated by the salt fog spray method and electrochemical method. The research results have fabricated two formulations of epoxy coatings based on epoxy resin Epotec YD011X75 with the most appropriate mass ratio of YD011X75/(MIO/P/T) is 40/60 (wt/wt); of which one does not have nano silica (epoxy coating MIO2); one with 1 wt% nano silica (epoxy coating MIO5). The thermal stability of epoxy coating MIO5 is better than epoxy coating MIO2. The decomposition temperature of 50 wt% of epoxy coatings MIO5 and MIO2 is 528.34°C and 470.53°C. The formed epoxy coatings achieve the physical chemistry properties, mechanical properties, and corrosion resistance properties of steel for epoxy coatings, in which the epoxy coating MIO5 is better than the epoxy coating MIO2.
Mechanical properties of starch bio-composite and molded pulp samples manufactured using pine and eucalyptus fibers
Authors: Alptekin Artunç , Çallioğlu Hasan 
Published: March 2023

In recent years, one of the main challenges is to improve the mechanical performance of bio-composites to be used as structural parts for the construction, automotive, and aviation sector. This paper may contribute to developing durable structural bio-composite parts with starch addition. The mechanical properties of bio-composites reinforced by eucalyptus or pine fibers (48 wt %) compound with Cationic Starch (48 wt %) and Carboxymethyl cellulose (CMC) (4 wt %) were determined. The production method was a combination of molded pulp, extrusion, and compression molding production techniques. To see the effect of adding starch to bio-composites and different production methods, the mechanical performance of these natural fibers produced by the conventional molded pulp production method (without any additives) was also found and compared with the composite samples. Composite samples indicate significantly better tensile, flexural, and compressive values, at least four times, compared with the molded pulp samples. On the other hand, the molded pulp samples had more than 2 times better impact characteristics against composites. Using molded pulp technic in composite production (investigated in the study) is a new idea and may give some opportunities with its serial production compatibility and geometry freeness, to the industry.
Defining the fit and ideal entry site of the fibula rod system––a computed tomography based study in elderly patients with lower limb infections, vascular diseases or tumors
Authors: Cheung Yan Chun , Yee Dennis KH , Fang Christian 
Published: March 2023

Objectives To determine the configuration of the distal fibula anatomy and the fitness of the Fibula Rod System (Acumed®, Hillsboro, Oregon) in a series of fibula models and to determine the optimal entry site of the rod. Methods Consecutive series of computed tomography (CT) of tibias and fibulae with no fracture or deformity were converted to stereo-lithograph format, and imported into Meshmixer software (Autodesk, San Rafael, California). A 3.6 × 180 mm fibula rod model was virtually inserted to best fit the intramedullary canal of the fibula model and to a depth of 0 mm proud at the distal fibula. The location of the entry point in relationship to the fibular tip, and the distance between the rod and the lateral fibula cortex were measured. Results CT of 41 fibulae (23 male and 18 female patients) contributed to the three-dimensional fibula modeling. The entry point was 3.5 mm (SD 2.0) medial to (in mortise view) and 1.0 mm (SD 2.1) anterior to (in lateral view) the fibular tip. The fibula rod was inserted to a depth of 6.2 mm (SD 2.1) proximal to the fibula tip. The mean shortest distance of the rod to the outer cortex was 1.88 mm (SD 0.87). There was a breach of the posterolateral cortex in one patient. Conclusion The guide pin entry site of fibula rod should be medial and anterior offset with reference to the fibula tip, in contrary to the distal tip as recommended in the manual. There is a chance of breaching the posterolateral cortex with rod entry.
Medium- to Long-term Results of Nonanatomic Spring Ligament Reconstruction Using an Allograft Tendon in Progressive Collapsing Foot Deformity With Severe Abduction Deformity
Authors: Kim Jaeyoung , Mizher Rami , Sofka Carolyn M. , Ellis Scott J. , Deland Jonathan T. 
Published: March 2023

Background: Spring ligament reconstruction (SLR) has been suggested as an adjunct to other reconstructive procedures to potentially avoid talonavicular joint fusion in progressive collapsing foot deformity (PCFD) with severe abduction deformity. Most clinical reports present short-term follow-up data and a small number of patients. The purpose of this study was to examine the medium- to long-term outcomes of an SLR using allograft tendon augmentation as part of PCFD surgical reconstruction. This study to our knowledge represents the largest number of patients and the longest follow-up to date. Methods: This study retrospectively reviewed 26 patients (27 feet, mean age of 61.4 years) who underwent SLR with allograft tendon as part of PCFD reconstruction. The mean follow-up of the cohort was 8 years (range, 5-13.4). Radiographic evaluation consisted of 5 parameters including talonavicular coverage angle (TNC), with the maintenance of correction being evaluated by comparing parameters from the early postoperative period (mean: 11.6 months, range, 8-17) to final follow-up. Foot and Ankle Outcome Score (FAOS) and patient satisfaction questionnaires were collected at final follow-up. Conversion to talonavicular or subtalar fusion was considered as a failure. Results: Final radiographs demonstrated successful abduction correction, with the mean TNC improving from 43.7 degrees preoperatively to 14.1 degrees postoperatively (P < .0001). All other radiographic parameters improved significantly and exhibited maintenance of the correction. All FAOS subscales showed significant improvement. Responses to the satisfaction questionnaire were received from all except 1 patient, of whom 88.5% (23/26) were satisfied with the results, 96.2% (25/26) would undergo the surgery again, and 88.5% (23/26) would recommend the surgery. Eight feet (29.6%) required painful hardware removal and 1 (3.7%) developed nonunion of the lateral column lengthening osteotomy. No patient required conversion to talonavicular or subtalar fusion. Conclusion: This study demonstrates favorable medium- to long-term outcomes following PCFD reconstruction including an SLR with allograft tendon augmentation. Level of Evidence: Level IV, case series.
Association between maternal socioeconomic status and breastfeeding: Results from the Japan environment and children’s study
Authors: Tanaka Rie , Tsuji Mayumi , Shimono Masayuki , Morokuma Seiichi , Morisaki Naho , Kusuhara Koichi , Kawamoto Toshihiro ,   Japan Environment and Children’s Study Group
Published: March 2023

Although breastfeeding has various benefits for mothers and children, there are several barriers to continuing breastfeeding practices. However, little is known about the relationship between breastfeeding in Japan and maternal socioeconomic circumstances. Based on data from the Japan Environment and Children’s Study ( n = 75,742), we evaluated maternal socioeconomic factors associated with breastfeeding 1 year after giving birth. Socioeconomic status (education, employment status, and household income), working hours, and breastfeeding were assessed using a self-administered questionnaire. After descriptive analysis, a logistic regression analysis was conducted with adjustments for age, educational level, employment status, and household income. Mothers with higher education and full-time homemakers were more likely to breastfeed one-year-old children. Mothers working long hours (both part-time and full-time) were less likely to breastfeed their one-year-old children. To improve breastfeeding among working mothers, it may be helpful to promote awareness of breastfeeding for every mother as well as to make the workplace environment conducive for working mothers to breastfeed.
The Processability, Electrical and Mechanical Properties of EMI Shielding ABS Composites
Authors: Ma Chen-Chi M. , Hu A.T. , Chen D.K. 
Published: March 2023

Conducting composite materials based on acrylonitrile-butadiene-styrene (ABS) compounded with conductive fillers, i.e. carbon black and aluminium flakes were prepared. The effectiveness of such composite materials with regard to shielding against electromagnetic interference (EMI) was studied, and the relationships among electrical conductivity, processability and mechanical properties were explored. Effects of modifying the filler surface with coupling agents on various properties were also investigated. Results show that the threshold for conductivity is about 5 vol% (20wt%) of conductive carbon black or 5 – 10 vol% (20–40wt%) of Al-flake in composites. The most optimised shielding effectiveness reaching 25dB and 30 dB when the ABS matrix contains 20 wt% of carbon black or 40 wt% of Al-flake. This performance is comparable with that of 1 mm thickness of copper sheet, or that of nickel coating. In addition, both mechanical and rheological properties of the conductive composites were studied.
Determination of the Damage Zone Size in Textile Fabric Reinforced Polypropylene Composites by Locating the Acoustic Emission
Authors: Czigany T. , Karger-Kocsis J. 
Published: March 2023

The size of the damage zone was determined on modified compact tension (CT) specimens of model composites containing a single layer of different textile fabrics by locating the acoustic emission (AE) events during loading. Among the reinforcing fabrics both crimped woven (co-woven and/or hybrid clothes) and non-woven (swirl mat) structures were studied. The extent of the damage zone was linked to a circle or ellipse in which a given proportion of the AE events could be found. Its size was strongly underestimated when only the stress-whitened zone at the crack tip, resolved by light microscopy, was considered. It is therefore reasonable to distinguish a processing zone (stress-whitened region) within the damage one. The size of the damage zone depended upon the microstructure of the reinforcing fabric due to differences in the possible stress transfer, as expected. It was also shown that the stress transfer and stress distribution capability of the fabrics strongly depend on their “wettability” by the matrix polymer; easily impregnable fabrics are loosely structured and/or hybridized ones.
Predicting the Operating Characteristics and Play of Machine Sliding Bearings Made from Composite Materials
Authors: Levin Eng A.L. , Kacevman Eng 
Published: March 2023

Polymer sliding materials are being used more and more in combinations of machine parts. The sliding properties and other characteristics of thermoplastics (acetal resins, polyamides) are temperature dependent. The main limitation of thermoplastic sliding bearings is the temperature. Calculation of the load capacity of thermoplastic sliding bearings should therefore form the basis for the thermal calculation of the sub-assembly, the purpose of which is to determine the operating temperature of the sub-assembly or (at a given permissible operating temperature) to determine the permissible operating parameters for the thermoplastic sliding bearing in the sub-assembly in question. Because of the low heat conduction and high thermal expansion coefficients of polymers, there are certain difficulties with heat dissipation through the bearing and the permissible tolerances when using thermoplastic sliding bearings. On the basis of algorithms developed for the purpose, a program package has been developed to calculate the strength and stiffness of thermoplastic sliding bearings made from the most varied of materials. This presentation points out certain graphic dependences, determined with a plotter, of the initial dimensions on material properties and sub-assembly design. Analysis of these relationships together with others determined during these machine experiments leads to the conclusion that the greatest efficiency can be achieved by simultaneously increasing the thermal conduction of the composite material by two to two and a half times and reducing the coefficient of friction to two thirds of the original value. By adding graphite fibres, the coefficient of thermal expansion can be reduced by 35%. This parameter has a decisive effect on the magnitude of the play in the sliding combination.
Solvent Absorption by Carbon Fibre Reinforced PEEK Laminates
Authors: Pritchard Geoffrey , Randies Steven J. 
Published: March 2023

The absorption of organic liquids by polyaryl ether-etherketone (PEEK) was investigated. Experiments with carbon fibre reinforced PEEK immersed in liquids of linear and cyclic molecules at 23°±2°C show that three important parameters (molecular size, shape, and polarity) have important effects on the diffusion rate. For the purposes of this study, using fibrous laminates rather than unreinforced polymers ensured matrix samples which were well-characterised and representative of practical materials with respect to crystallinity. Special attention was directed to alkanes and alcohols. Three dimensional plots of weight absorption against hydrogen bonding capacity and the product of molar volume and solubility parameter mismatch are presented. Implications for solvent resistance are suggested.