bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fatores relacionados à qualidade de vida de idosos de uma comunidade quilombola da Paraíba
Authors: Batista Correia Iasmim , Alves de Olinda Ricardo , Nobre de Menezes Tarciana 
Published: April 2022

O artigo apresenta fatores relacionados à qualidade de vida de idosos de uma comunidade quilombola da Paraíba. Trata-se de estudo transversal, realizado com idosos de ambos os sexos, residentes na comunidade quilombola Caiana dos Crioulos, Alagoa Grande/PB, Brasil, cadastrados no e-SUS como residentes dessa comunidade. A variável dependente é a qualidade de vida relacionada à saúde (QVRS) e as independentes são perfil socioeconômico-demográfico, situação de saúde, estado nutricional e força muscular. Foi realizada correlação de Spearman, regressão linear simples e múltipla (IC95%; p<0,05) para verificar a relação entre as variáveis. Foram avaliados 45 idosos (66,6% mulheres), com média etária de 71,3 anos, dos quais 42,2% apresentaram QVRS ruim no componente físico e 44,4% no componente mental. Os sintomas indicativos de depressão, o número de doenças crônicas não transmissíveis (DCNT) e o teste sentar e levantar explicaram, conjuntamente, 37% (R²=0,379, p<0,05) da QVRS ruim. Sugere-se a assistência integral e prioritária pelos serviços de saúde pública, visando controlar e reduzir a ocorrência de doenças físicas e psicológicas e manter a força muscular.
Reliability and Repeatability of the China-Japan Friendship Hospital Typing Classification for Nontraumatic Osteonecrosis of the Femoral Head
Authors: Liu Li-hua , Li Zi-rong , Sun Wei , Wang Yun-ting , Gao Fu-qiang 
Published: April 2022

Background:
The purpose of this study was to analyze the interobserver reliability and intraobserver repeatability of the China-Japan Friendship Hospital (CJFH) typing classification system for nontraumatic osteonecrosis of the femoral head (ONFH).

Methods:
Image data of 50 hips were randomly selected in 289 patients (433 hips) with ONFH who underwent treatment in the China-Japan Friendship Hospital from 2012 to 2016. Bilateral hip plain radiography, magnetic resonance imaging (MRI), or computerized tomography (CT) were performed in all hips. The assessments were performed by 8 new residents independently, and the repeatability was assessed at 4-week intervals. Evaluation indicators included the size, location, and extent of necrotic lesions. Kappa values were used to determine the reliability and repeatability.

Results:
According to the CJFH classification system, 2,800 evaluations were performed with an average interobserver Kappa value of 0.711, and 400 assessments were performed with an average intraobserver Kappa value of 0.748. Reliability analysis indicated a higher reliability and repeatability of this classification system. Critical factors affecting the consistency included the accurate selection of the median coronal plane and definitive tri-pillar division of the femoral head.

Conclusion:
The CJFH classification system is a simple and direct evaluation model for ONFH with substantial inter- and intraobserver reliability.
Outcomes following Total Hip Arthroplasty for Femoral Head Osteonecrosis in Patients with History of Solid Organ Transplant
Authors: Quinlan Nicole D. , Chen Dennis Q. , Werner Brian C. , Cui Quanjun 
Published: April 2022

Background:
Osteonecrosis of the femoral head (ONFH) is a potentially debilitating condition, often requiring total hip arthroplasty (THA). Patients with solid organ transplant (SOT) are at increased risk of postoperative complications after THA for osteoarthritis. The objective of the present study is to evaluate SOT as a potential risk factor for complication after THA for ONFH.

Methods:
This is a retrospective study that identified patients with SOT who underwent THA for ONFH from 2005 to 2014 in a national insurance database and compared them to 5:1 matched controls without transplant. Subgroup analyses of patients with renal transplant (RT) and those with non-RT were also analyzed. A logistic regression analysis was used to compare rates of mortality, hospital readmission, emergency room (ER) visits, infection, revision, and dislocation while controlling for confounders. Differences in hospital charges, reimbursement, and length of stay (LOS) were also compared.

Results:
996 patients with SOT who underwent THA were identified and compared to 4,980 controls. SOT patients experienced no increased risk of early postoperative complications compared to controls. Solid organ transplant was associated with higher resource utilization and LOS. Renal transplant patients were found to have significantly higher risk of hospital readmission at 30 days (odds ratio [OR] 1.77; p = 0.001) and 90 days (OR 1.62; p < 0.001) and hospital LOS (p < 0.001), but had lower risk of infection (OR 0.65; p = 0.030). Non-RT patients had higher rate of ER visits at 30 days (OR 2.26; p = 0.004) but lower rates of all-cause revision (OR 0.22; p = 0.043).

Conclusions:
Patients with history of SOT undergoing THA for ONFH utilize more hospital resources with longer LOS and greater risk of readmission but are not necessarily at an increased risk of early postoperative complications.
Decreased Ankyrin Expression Is Associated with Repressed eNOS Signaling, Cell Proliferation, and Osteogenic Differentiation in Osteonecrosis of the Femoral Head
Authors: Lin Rio L.C. , Sung Pei-Hsun , Wu Chen-Ta , Tu Yuan-Kun , Lu Yu-Der , Yip Hon-Kan , Lee Mel S. 
Published: April 2022

Background:
Reduced nitric oxide synthase (NOS) activity and decreased reparative potentials in stem cells may be involved in the pathogenesis of osteonecrosis of the femoral head (ONFH), but the underlying mechanism is not clear. Ankyrin, a cytoskeletal protein, can promote NOS expression and many cellular functions when it interacts with the CD44 receptors on the stem cells. This study investigated whether ankyrin is involved in the pathogenesis of ONFH.

Materials and Methods:
Bone marrow stem cells (BMSCs) from ONFH patients were compared with cells from patients with proximal femoral fracture and BMSC cell lines (PT-2501, Lonza, NC, USA). Differences in the expression levels and downstream signal pathway of ankyrin-Akt-eNOS in BMSCs were studied between ONFH and control. The involvement of ankyrin in the signal cascade, cell proliferation, and differentiation were further investigated by silencing ankyrin using small interfering (si)RNA.

Results:
We found the basal mRNA levels of ankyrin and CD44 in BMSCs from the ONFH group were significantly lower as compared with those from the control group. The signal transduction of CD44-ankyrin-Akt-eNOS was significantly repressed in the ONFH group as compared with the control group after hyaluronic acid treatment. Knockdown of ankyrin by siRNA could attenuate the eNOS signaling as well as the BMSCs proliferation and osteogenic differentiation. The proliferation ability and osteogenic differentiation potential of the BMSCs from the ONFH group were significantly reduced as compared with the control group, but they can be enhanced to the baseline levels of the control group by hyaluronic acid treatment.

Conclusion:
The aberrant eNOS signaling, reduced cell proliferation, and osteogenic differentiation potential in BMSCs from ONFH patients are associated with the decreased ankyrin expression.

Clinical Relevance:
Altered signal transduction, proliferation, and osteogenic differentiation ability in BMSCs may be involved in the pathogenesis of ONFH. These need further studies especially in BMSC-based cell therapy.
Relationship Between Blood Flow and Collapse of Nontraumatic Osteonecrosis of the Femoral Head
Authors: Zheng Guo-Shuang , Qiu Xing , Wang Ben-Jie , Zhao De-Wei 
Published: April 2022

Background:
To investigate the collapse mechanism in osteonecrosis of the femoral head (ONFH), we studied the relationship between the femoral head (FH) blood circulation changes and the collapse area histomorphometry characteristics.

Methods:
A technique involving microvascular perfusion of the FH in vitro to reconstruct the vessels in the FH at different stages of nontraumatic ONFH (40 cases). In addition, we also examined the histomorphometry characteristics in the collapse area during ONFH at different stages using the hard tissue section technique. To investigate the blood supply changes in the FH on pathological involved in the FH collapse process.

Results:
The results showed that in all FHs, the collapse area always involved the margin of the necrotic lesion of the lateral column. Histologically, the fracture occurred between the thickened and necrotic trabeculae at the junction. We found that the collapse started at the lateral column of the FH in the necrotic lesion and that the lateral column was ischemic, which caused the FH to begin to collapse.

Conclusions:
Based on the above findings, the relationship between associations of the blood circulation to the collapse showed that if a portion of the blood supply of the lateral column (the superior retinacular artery) was preserved, the prognosis of the natural progression of the diseases was improved, the collapse rate was low and collapse occurred later. The blood circulation of artery in the lateral column was good, and the FH maintained an intact shape even if the internal region was ischemic. Therefore, we can predict the collapse of the FH by measuring the blood flow in the lateral area of the FH, thus providing guidance for the selection of FH-preserving clinical therapy in young and middle-aged patients.

Clinical Relevance:
This work provides a proof of how to predict the collapse of the FH by measuring the blood flow, providing guidance for FH-preserving clinical therapy in young and middle-aged patients.
A Case Study on Integrated Modeling of Spatial Information of a Complex Geological Body
Authors: Zhang Peng , Zhang Dingfei , Yang Yang , Zhang Wengang , Wang Yawen , Pan Yajing , Liu Xiaozheng 
Published: April 2022

Abstract
To ensure the safety of project construction and reduce development costs, it is necessary to obtain a reasonable design before project initiation and to analyze and study geological information from multiple perspectives to achieve intuitive and effective project planning. Therefore, it is proposed to integrate above- and underground information to realize integrated spatial information expression. Generally, geological body model construction is based on drilling data, but most geological bodies are not simple layered structures, and complex geological phenomena usually occur, such as faults, lenses, and fissures. It is difficult to construct a high-quality geological body model with only limited drilling data. To fully consider existing geological information in complex geological areas with limited geological data information available, profile maps are considered in the modeling process. This article focuses on the geological model construction of a primary school in Shuicheng County, Guizhou Province, using the GoCAD platform. The Structure and Stratigraphy Workflow is applied in three-dimensional geological body structure model establishment, the stratum rock mass is outlined, and the complex geological structure (karst cave) is embedded into the geological surface. The model can be sliced at any angle to accomplish integrated spatial information expression of above- and underground building information combined with the same platform’s geological body to obtain engineering information and analyze future construction problems.
Natural Gas Resource from Gas Hydrates Offshore the East Coast of Trinidad
Authors: Gift J. H. , Hosein R. , Jupiter A. , Wang J. Y. 
Published: April 2022

SummaryThe global shift toward environmentally friendly fuels has led to an increase in the usage of natural gas as an energy source. Natural gas is currently being produced from conventional gas reservoirs; however, there has been increased interest in the large repositories of highly compressed natural gas sequestered in gas hydrates. Well logs, as well as 3D seismic surveys, aid in the identification of geophysical features which support the presence of natural gas hydrates. Geophysical features include bottom-simulating reflectors (BSRs), amplitude blanking, and enhanced reflections. Previous studies of the deepwater blocks offshore the eastern coast of Trinidad provided conflicting conclusions regarding the existence of gas hydrate-bearing sediments in Blocks 25A, 25B, 26, and 27. This study investigated not only the presence, but additionally the location, depth of the BSRs, and associated natural gas hydrate-bearing sediments, as well as the volumetric estimation of the hydrate-bound gas in these blocks, as well as Block 4B. Six gas hydrate-related BSRs were identified; one each in Blocks 4B, 25A, and 26, and three in Block 27. No BSRs were observed in Block 25B. Closer inspection revealed that the BSR in Block 26 is an extension of one of the BSRs in Block 27. A total gas resource in place is estimated to be 4–19 Tcf, which indicates that the eastern coast of Trinidad has the potential to provide additional natural gas reserves.
Trends in adults’ energy imbalance gaps over two decades in Belgium using system dynamics modelling
Authors: Fallah-Fini Saeideh , Rezaei Tannaz , Ridder Karin , Vandevijvere Stefanie 
Published: April 2022

Abstract
Background
The energy imbalance gap (EIG) represents the average daily difference between energy intake and energy expenditure. The maintenance energy gap (MEG) captures the increased energy intake needed to maintain a higher average bodyweight compared with an initial distribution of bodyweight. This study quantified the dynamics of the EIG and MEG over time and across different genders/regions/BMI groups for Belgian adults.
Methods
A validated system dynamics model was adapted to estimate the trends/dynamics of the EIG among different subpopulations over two decades in Belgium. The model was calibrated using data from the six Belgium national Health Interview Surveys (1997,2001,2004,2008,2013,2018).
Results
EIG was negative for all BMI groups among Belgian females in 2018, implying the start of a decrease in prevalence of overweight/obesity in this subpopulation. However, this was not the case among Belgian males. Flemish and Walloon males had positive EIGs across BMI groups in 2018, however, Brussels’ males showed negative EIGs across BMI groups. Flemish and Brussels’ females showed negative EIGs across all BMI groups in 2018, while Walloon females showed positive EIGs across almost all BMI groups. According to the MEG, Belgian men consumed (and expended) on average 59 kcal/day more in 2018 than in 1997 to maintain their heavier body weight. The MEG for Belgian women was 46kcal/day in 2018, triple the MEG in 2004.
Conclusions
The detailed heterogeneous trends of the EIG explain the obesity patterns for different subpopulations in Belgium and could be used to model the differential effects of specific nutrition policies targeting energy intake.
ASTERI: Image-based representation of EEG signals for motor imagery classification
Authors: Gomes Juliana Carneiro , Rodrigues Marcelo Cairrão de Araújo , Santos Wellington Pinheiro dos 
Published: April 2022

Abstract
Purpose
Electroencephalography (EEG) signals are valuable in the monitoring and investigation of neurological diseases and in the control of brain-machine interfaces (BCI). However, these signals are noisy and are non-linear and non-stationary in nature. Signal analysis is an expensive task and can lead to misdiagnosis. Deep learning can be used to overcome these challenges. The most used deep architectures are based on convolutional neural networks (CNNs). Representing EEG signals as images can be useful to use deep architectures based on CNNs in solutions based on intelligent EEG-based systems.
Methods
In this work, we propose the ASTERI method, for representing EEG signals in two dimensions using the backprojection reconstruction method. To validate the proposal, experiments were performed with motor imagery EEG signals from the BCI Competition IV 2b motor imagery database. To extract attributes from the EEG signal windows, we used the ASTERI representation and investigated the pre-trained networks VGG16 and LeNet. To classify the final classification of imagined movements to the right and to the left, we used Random Forests.
Results
For the original database, the validation with 100 trees achieved an average accuracy and kappa index of 88.97% and 0.78, respectively. In the case of augmented databases with synthetic instances, the average accuracies were 89.10% and 89.13% for increases of 50% and 150% for each class, respectively.
Conclusion
The experimental results showed that the ASTERI method, together with hybrid deep architectures based on CNN and Random Forests, can generate competitive results in solving motor imagery problems. The representation of signals as images can also con tribute to the exploration of new solutions of applied neuroscience problems based on deep architectures.
ThGM cells as a prognostic and predictive marker for coronary heart disease
Authors: Mou Dachao , Wu Shasha , Jiao Ling , Zhou Yi , Bai Xiufeng 
Published: April 2022

Abstract
Background Coronary heart disease (CHD) is causing by the aberrant aggregation of immune cells in plaque. This study aimed to identify abnormal T cell subtypes and inflammatory factors in CHD patients.Methods and results T cell subsets from 187 CHD patients were analyzed using flow cytometry. Plasma concentration of cytokines were analyzed by Luminex. Flow cytometric analysis revealed that the number of ThGM cells was higher in CHD patients. The proportion of Th17 and Th1 cells were also increased in CHD patients. levels of IL-4, IL-5, IL-6, and IL-10 were significantly higher in CHD patients (P<0.05). However, levels of GM-CSF were slightly lower in CHD patients. Conclusions ThGM can be considered as a diagnostic marker of CDH.
Effects of Plasmon Resonance on the low frequency noise and optoelectronic properties of Au/Cu codoped ZnO based photodetectors
Authors: Elkamel Imen Ben , Hamdaoui Nejeh , Mezni amine , Ajjel Ridha , beji lotfi 
Published: April 2022

Abstract
We have investigated the effect of Au nanoparticles on the low frequency noise and current-voltage of Au/Cu doped ZnO nanoparticles (Nps) based photodetectors (PDs). Besides, 1/f noise of Cu doped ZnO is studied with and without Au Nps conditions and varied bias voltages. The Au/Cu codoped ZnO Nps showed much lower 1/f noise and higher normalized photocurrent to the dark current ratio (NPDR) than Cu doped ZnO Nps and undoped ZnO Nps. This enhancement may be attributed to the effect of localized surface Plasmon resonances (LSPR). Furthermore, the noise equivalent power (NEP) and the detectivity (D*) were determined using low frequency noise measurements. The observed low frequency noise performances could be used for Au/Cu codoped ZnO Nps based UV photodetectors.
Combination technique using patchwork and partial softening to determine the collision toughness and intrusion prevention in side crash simulation
Authors: Lee Min Sik , Jin Chul Kyu , Lim Ok Dong , Suh Jun Ho 
Published: April 2022

Abstract
Various techniques have been applied to center pillar to enhance collision characteristics during side crash. Among these techniques, the patchwork (PW) was welded to center pillar to strengthen the stiffness and partial softening (PS) was applied to provide ductility. Side crash test was conducted by Insurance Institute for Highway Safety (IIHS) to evaluate collision resistance. But it is hard to evaluate collision toughness and energy distribution flow for each automobile component. In this study, the side crash simulation was performed along with IIHS instruction. The effect of Hot Press Forming (HPF) center pillar with the combination techniques of PW and PS on collision toughness and energy distribution flow was investigated. As a result, the role of PW and PS techniques were verified during side crash. The strain energy and intrusion displacement by PW were improved 10, 7.5% respectively and the plastic deformation energy and intrusion displacement by PS were improved 10%. When PW and PS were applied to the HPF center pillar simultaneously, the synergy effect of PW and PS occurred.
MgO nanoparticle effect on nonlinear refractive index of nematic liquid crystal doped with Sudan black B dye using of Z-scan method
Authors: Pourmostafa Davoud , Tajalli Habib , Vahedi Ali , Milanchian Karim 
Published: April 2022

Abstract
The effect of added MgO nanoparticles on nonlinear optical properties of 6CHBT liquid crystal doped with Sudan black B dye were studied by z-scan technique using of cw He-Ne laser at 632.8 nm. The cell used had homogeneous alignment. The MgO nanoparticles were added to 6CHBT liquid crystal doped with 0.3 wt% Sudan black B dye, at three concentrations of 0.1, 0.3 and 0.6 wt%. It was found that the added MgO nanoparticles did not significantly change the nonlinear refractive index of the compound at concentrations of 0.1 and 0.6 wt% while increasing it at 0.3 wt%.
Sexually Transmitted Infection and Related High-Risk Behaviors among female sex workers in Iran: results of the national rapid assessment &amp; response (RAR), 2017
Authors: Roshanfekr Payam , moftakhar Leila , Ali Delaram , Vameghi Meroe , Narouee Sakineh , soufi khodamord , SoleimanvandiAzar Neda 
Published: April 2022

Abstract
Background: Sexually transmitted infections are one of the most important public health problems and have serious consequences for female sex worker. The aim of this study was to investigate the prevalence of STIs among sex workers and to identify high-risk behaviors affecting STIs.Methods: In this cross-sectional study, 898 women sex workers were studied in 21 provinces of Iran from October 2016 to March 2017. The required information was collected through self-report and completing a questionnaire. Simple and multiple logistic regression was used with 95% significance level. To identify risk factors for sexually transmitted diseases.Results: The prevalence of STIs was 41.8%. Multiple logistic regression results showed that the odds of getting STIs in FSW over the age of 35was 5.6 times higher than FSWs 18-24 years (AOR = 5.65, 95% CI: 1.035, 30.90), and the odds of getting STIs in FSWs with imprisonment was 3 times higher in FSW without imprisonment (AOR = 3.00, 95% CI: 1.04, 8.62), Also odds of getting STIs in FSWs who used injectable drugs was 17.2 times higher in FSW who did not take injectable drugs (AOR = 17.21, 95% CI: 2.54, 116.59). But self-perceived risk of HIV was borderline (AOR = 3.81, 95% CI: 0.97, 14.93),Conclusion: The findings of this study can provide evidence for designing and implementing for risk reduction interventions for FSWs.