bluuebunny/crossref_metadata_2025_split huggingface dataset:
Artificial Neural Networks Can Predict Early Failure of Cementless Total Hip Arthroplasty in Patients With Osteoporosis
Authors: Klemt Christian , Yeo Ingwon , Cohen-Levy Wayne Brian , Melnic Christopher M. , Habibi Yasamin , Kwon Young-Min 
Published: February 2022

Background:
Total hip arthroplasty (THA) done in the aging population is associated with osteoporosis-related complications. The altered bone density in osteoporotic patients is a risk factor for revision surgery. This study aimed to develop and validate machine learning (ML) models to predict revision surgery in patients with osteoporosis after primary noncemented THA.

Methods:
We retrospectively reviewed a consecutive series of 350 patients with osteoporosis (T-score less than or equal to −2.5) who underwent primary noncemented THA at a tertiary referral center. All patients had a minimum 2-year follow-up (range: 2.1 to 5.6). Four ML algorithms were developed to predict the probability of revision surgery, and these were assessed by discrimination, calibration, and decision curve analysis.

Results:
The overall incidence of revision surgery was 5.2% at a mean follow-up of 3.7 years after primary noncemented THA in osteoporotic patients. Revision THA was done because of periprosthetic fracture in nine patients (50%), aseptic loosening/subsidence in five patients (28%), periprosthetic joint infection in two patients (11%) and dislocation in two patients (11%). The strongest predictors for revision surgery in patients after primary noncemented THA were female sex, BMI (>35 kg/m2), age (>70 years), American Society of Anesthesiology score (≥3), and T-score. All four ML models demonstrated good model performance across discrimination (AUC range: 0.78 to 0.81), calibration, and decision curve analysis.

Conclusion:
The ML models presented in this study demonstrated high accuracy for the prediction of revision surgery in osteoporotic patients after primary noncemented THA. The presented ML models have the potential to be used by orthopaedic surgeons for preoperative patient counseling and optimization to improve the outcomes of primary noncemented THA in osteoporotic patients.
الصناعات والحرف التقليدية ودورها في السياحة والتنمية المحلية في صنعاء القديمة
Authors: القدسي اروى احمد 
Published: February 2022

يهدف المقال إلى التعرف على الصناعات والحرف التقليدية التي توجد في مدنية صنعاء القديمة في ، اليمن كما يهدف الى بيان الدور الريادي الذي تلعبه هذه الصناعات في جذب السياحة، اذ تزدهر السياحة الداخلية والخارجية وينعكس ذلك على التنمية المحلية للمدنية فنجد أن العلاقة طردية بين التنوع في الصناعات التقليدية والاهتمام بها وبين تطور السياحة والتنمية المحلية ، فكلما
Pemberdayaan Masyarakat Di Kampung Pinang Sebatang Kecamatan Tualang Kabupaten Siak
Authors: Daliati Surya , Herniwati Herniwati , Sudaryanto Sudaryanto 
Published: February 2022

Pinang Sebatang Village, Tualang District, Siak Regency comes from various different areas, where the majority of the population is the most dominant ethnic Malay. The problems that exist in this village include poor people. To overcome this, community service was carried out by means of online implementation methods and discussion and assistance. As a result, community empowerment went well and there was support from the local government in the form of budget allocations for annual activities for community empowerment. Like in 2019, IDR 97,057,000, only IDR 39,761,000 can be used. This means that there is an excess of budget use of IDR 57,296,000 from the total village budget of IDR 2,418,213,189. With this amount, it is still not able to solve various problems that exist in society. The remaining surplus from the previous year's budget was Rp 69,403,223 and the remaining excess of the current year's use was Rp 303,971,406. So the village / village spending in 2019 will be IDR 2,021,145,005. This empowerment activity needs to be continuously improved by involving the private sector.
Ekosistem Mangrove dan Mitigasi Pemanasan Global
Authors: Fitria Anisa 
Published: February 2022

Pemanasan global berdampak pada kehidupan di dunia dan dirasakan oleh seluruh makhluk hidup. Salah satu penyebab terjadinya pemanasan global adalah peningkatan emisi karbon dioksida. Ekosistem Mangrove memiliki fungsi seperti hutan lainnya yaitu menyerap karbon dan juga berperan penting dalam mitigasi pemanasan global. Penelitian ini dilakukan untuk mengulas dan mengetahui pentingnya ekosistem mangrove dalam mitigasi pemanasan global. Metode penelitian yang digunakan studi literatur atau kajian pustaka dengan mengkaji beberapa artikel terkait. Studi literatur digunakan sebagai metode pengumpulan data dengan melakukan penggabungan beberapa data penelitian yang tercantum dalam artikel ilmiah yang relevan dengan penelitian yang akan dilakukan untuk mendapatkan suatu pemecahan masalah. Penelitian relevan dikumpulkan oleh penulis kemudian dikaji lebih dalam untuk membahas kembali peran ekosistem bagi mitigasi pemanasan global. Hasilnya Ekosistem mangrove memiliki potensi mitigasi yang sangat besar untuk mengatasi solusi untuk bencana yang disebabkan oleh perubahan iklim akibat pemanasan global.
Peran BUMDes dalam Pengelolaan Sampah dengan Insinerator dan Komposter di Desa Sumbergondo, Kota Batu
Authors: Alfiansyah Rafi 
Published: February 2022

Masalah sampah menjadi sebuah isu yang begitu penting, karena memberikan dampak terhadap lingkungan, sehingga perlu diperhatikan bagi seluruh elemen yaitu Pemerintah maupun rakyat. Desa Sumbergondo, Kota Batu pernah menghadapi persoalan serius akan sampah. Volume sampah yang diproduksi tidak sebanding dengan sarana dan prasana dalam pengelolaan sampah, sehingga sampah dibuang secara sembarangan dan menumpuk pada satu tempat sehingga dapat menimbulkan dampak negatif bagi lingkungan, kesehatan dan kenyamanan. Namun BUMDes, sekitar tahun 2019 menciptakan alat peengelolaan sampah yaitu insinerator dan komposter dengan penggunaan Dana Desa. Tujuan dilaksanakan penelitian ini (1) menjelaskan terkait peran BUMDes terkait manajemen sampah di Desa Sumbergondo (2) memahami serta melihat akibat yang dirasakan warga Desa Sumbergondo sesudah ditemukan alat incenerator dan komposter dalam pengelolaan sampah di Desa Sumbergondo. Penelitian dilakukan dengan menggunakan pendekatan kualitatif dan jenis penelitian deskriptif. Teknik untuk pengumpulan datanya mengunakan observasi, wawancara dan dokumentasi. Hasil temuan penelitian berupa BUMDes memiliki peran penting dalam suksesnya pengelolaan sampah di Desa Sumbergondo, melalui program bank sampah dan alat insinerator dan komposter yang diciptakan BUMDes bisa mengatasi permasalahan sampah di desanya.
Mechanical and microMechanical and microstructural characterization of yttria-stabilized zirconia (Y2O3/ZrO2; YSZ) nanopartstructural characterization of yttria stabilized zirconia (Y2O3/ZrO2; YSZ) nanoparticles reinforced WC-10Co-4Cr coated turbine steel
Authors: Kumar Rajinder , Bhandari Deepak , Goyal Khushdeep 
Published: February 2022

The aim of this paper is to investigate the WC-10Co-4Cr coatings reinforced with 5 % and 10 % of yttria-stabilized zirconia (Y2O3/ZrO2; YSZ) nanoparticles deposited on the CA6NM turbine steel by using the high-velocity oxy-fuel (HVOF) thermal spraying technique. In the HVOF technique, the hot jet of the semi-solid particles strikes against the workpiece and creates a layer of coating of varying thickness on the substrate material. The coatings fabricated with HVOF were analyzed by scanning electron microscope (SEM) / energy-dispersive x-ray spectroscopy (EDS). The phase identification of a crystalline material was made with the x-ray diffraction (XRD) technique. The mecha­nical properties in terms of porosity, surface roughness and microhardness of the nanocomposite coatings were also evaluated. The SEM/EDS analysis showed that dense and homogeneous coatings were developed by the reinforcement of YSZ nanoparticles. The peaks of XRD graphs of WC-10Co-4Cr coating reinforced with 5 and 10 % of YSZ nanoparticles revealed that the WC was present as a major phase and W2C, Co3W3C, Co, Co6W6C, Co6W and Y2O3/ZrO2 nanoparticles were observed as a minor phase. The porosity level decreased up to 42 and 56 % by the addition 5 and 10 % of YSZ nanoparticles as compared with conventional WC-10Co-4Cr coating. The surface roughness values for WC-10Co-4Cr conventional coating, 95 % (WC-10Co-4Cr) + 5 % YSZ and 90 % (WC-10Co-4Cr) + 10 % YSZ nanocomposite coated samples were found to be 5.03, 4.89 and 4.28 respectively. The nanocomposite coatings reinforced with 10 % YSZ nanoparticles exhibited the highest microhardness value (1278 HV). The WC-10Co-4Cr coatings reinforced with 10 % of YSZ nanoparticles resulted in low porosity, low surface roughness and high microhardness. During the coating process, the nanoparticles of YSZ flow into the pores and are dispersed in the gaps between the micrometric WC particles and provide a better shield to the substrate material. The WC-10Co-4Cr with 10 % of YSZ nanoparticles showed better results in terms of mecha­nical and microstructural properties during the investigation.
Corrosion Study of Steels In Liquid Lead-Bismuth Cooled Nuclear Reactors by Computer Simulation using Moldy Code
Authors: Maulana Alan , Su'ud Zaki , Dipojono Hermawan K. , Khairurrijal Khairurrijal 
Published: February 2022

The corrosion of steel in liquid lead-bismuth has been studied by computer simulation using MOLDY code. The diffusion processes among atoms are assumed to be the key issues to understand the corrosion mechanism microscopically. In order to simulate these diffusion processes, the inter-atomic potential between Fe-Fe, Pb-Pb, Bi-Bi, Cr-Cr and Ni-Ni are assumed to obey the Lennard-Jones potential. The Lennard-Jones potential parameters of above pairs of atom have been derived by fitting the data available in the literature with the Lennard-Jones equation. The initial positions of the system are taken from the crystal structures data including the cell parameters. The simulation cell was a box with the volume 60x30x30 Å3 that were filled by 2864 atoms. Nickel and chromium atoms were substituted into Fe crystal with the percentage 10% and 16 % respectively to construct the systems of SS-316 which contacted by 50%Pb-50%Bi. The molecular dynamic simulations have been carried out for surface interaction between steel crystal with liquid lead-bismuth for several temperatures. After done the above simulation, the simulation is then tried by using 45%Pb-55%Bi (Pb-Bi Eutectic). The results of molecular dynamic simulations for several temperatures and the effect of variation of Pb and Bi above will be presented in this paper.
Evaluation of the Spatial Distribution of the Annual Extreme Precipitation Using Kriging and Co-Kriging Methods in Algeria Country
Authors: Salhi Hicham 
Published: February 2022

In this chapter, we have conducted a statistical study of the annual extreme precipitation (AMP) for 856 grid cells and during the period of 1979–2012 in Algeria. In the first step, we compared graphically the forecasts of the three parameters of the generalized extreme value (GEV) distribution (location, scale and shape) which are estimated by the Spherical model. We used the Cross validation method to compare the two methods kriging and Co-kriging, based on the based on some statistical indicators such as Mean Errors (ME), Root Mean Square Errors (RMSE) and Squared Deviation Ratio (MSDR). The Kriging forecast error map shows low errors expected near the stations, while co-Kriging gives the lowest errors on average at the national level, which means that the method of co-Kriging is the best. From the results of the return periods, we calculate that after 50 years the estimated of the annual extreme precipitation will exceed the maximum AMP is observed in the 33-year.
Combination of Numerical, Experimental and Digital Image Correlation for Mechanical Characterization of Al2O3/β-TCP Based on CDM Criterion
Authors: Rachida Barkallah , Taktak Rym , Guermazi Noamen , Zaïri Fahmi , Bouaziz Jamel 
Published: February 2022

Cracks in engineering materials and structures can undergo different modes of deformation. This chapter presents a numerical and experimental approaches aimed to assess the fracture toughness and the Fracture behavior under tensile and shear loading of bioceramics based on commercial Alumina (Al2O3), synthesized Tricalcium phosphate (β-TCP). Conditioning was conducted at different percentages of TCP. After a sintering process at 1600°C for 1 hour, The Crack Straight Through Brazilian Disc were performed by image correlation during a mechanical test and numerical tests were carried out in order to find the angle where the pure mode II. A CDM based constitutive model was selected and implemented into a finite element code to study the damage of our bioceramics. The result of this combination was compared with the direction of crack propagation obtained experimentally. The directions of crack propagation found numerically were found in good agreement with those experimentally obtained by a mechanical test. Alumina-10 wt.% Tricalcium phosphate composites displayed the highest values of the fracture toughness. This value reached 8.76 MPa m1/2 MPa. The same optimal composition for the mode I and mode II stress intensity factor with maximum values of 7.6 MPa m1/2 and 8.45 MPa m1/2 respectively.
REVERBERAÇÕES DE ATIVIDADES DE EXTENSÃO EM UM POLO SEMIPRESENCIAL DE EDUCAÇÃO À DISTÂNCIA
Authors: Portugal Anderson dos Santos , Moraes Vinicius dos Santos 
Published: February 2022

Aliado ao desafio de ensinar e transmitir o conhecimento sobre plantas foi realizada com alunos, equipe do polo semipresencial Magé (CEDERJ/UAB) e a comunidade do entorno do polo, o 1° Dia da Botânica com intuito de promover extensão, divulgação científica e ensino. O objetivo deste trabalho é tecer considerações sobre extensão e reverberações oriundas deste evento acadêmico. Com isso testamos as seguintes hipóteses: (i) os agentes envolvidos aprimoraram o engajamento e desenvolvimento de capacidades individuais e (ii) o evento evidencia o polo Magé como espaço de multifuncionalidade dentro do município. Os percursos metodológicos foram do tipo qualitativo com observações diretas e indiretas, realizadas nas ações antes, durante e após o evento do Dia da Botânica. Todas essas ações foram registradas em caderneta de campo. Ocorreu a análise quantitativa das com fichas de controle e inscrição de todos os participantes e questionário de avaliação do evento para o público ouvinte. Os diversos participantes do evento tiveram engajamento e os alunos desenvolveram capacidades individuais, além do evento reafirmar o polo Magé como espaço de multifuncionalidade dentro do município. O ensino e extensão de plantas teve interação dialógica e reforçou fatores intrínsecos de motivação, que auxiliou alguns participantes em questões sensíveis que perpassam a evasão da EaD. Parte do sucesso do evento se deu no protagonismo de alunos e agentes do polo, fazendo mudança de polarização frente a eventos tradicionalmente ofertados, não sendo receptores institucionais. Eventos de extensão desta natureza em polos semipresenciais devem ser replicados e estimulados para aprimoramento de cursos EaD no Brasil.
Integrated Management of Root-Knot Nematode (Meloidogyne Spp.) Using Fresh Organic Manure and Crotalaria brevidens Intercrop for Improved Growth and Yield of Tomato
Authors: Ngelenzi Munywoki James , Ogweno Joshua Otieno , Saidi Mwanarusi 
Published: February 2022

Tomato (Solanum lycopersicum L.) is one of the most important vegetables worldwide. Tomato productivity is limited by, among other factors, biotic constraints including root-knot nematodes (Meloidogyne species) which lower both quality and quantity of the crop. Two trials were conducted at the Horticulture Research and Teaching Field, Egerton University, Kenya, to evaluate effects of fresh organic manure and slender leaf (Crotalaria brevidens var. brevidens Benth.) intercrop on management of root-knot nematode during tomato production as well as establish their effect on tomato growth and yield. Variables measured were nematode infestation, plant height, stem collar diameter, number of internodes and branches, number of fruits, and fresh fruit weight. Use of fresh organic manure and slender leaf intercrop suppressed the nematode population by 27.8% to 53.5% reduction and significantly increased tomato fruit numbers by 22.2% to 49.7% and fresh fruit weight by 24.5% to 80.4% when used alone or in combinations compared to the control treatment. The combination of fresh goat dung and slender leaf intercrop resulted in the highest reduction in nematode population of 53.5% and highest increase in total number of fruits of 49.7% and fresh fruit weight of 80.4%.
Assessment of Risk Factors and Outcome of Co-Infection of Soil Transmitted Helminths and H. pylori among School Age Children Living in Riverine Slum Settlements in Port Harcourt, Nigeria
Authors: Onosakponome E. O. , Adedokun A. A. , Wogu Michael N. 
Published: February 2022

Soil transmitted helminths and Helicobacter pylori are well-known for their high prevalence worldwide. In developing countries, Soil-transmitted helminths (STHs) and H. pylori infectionis highly prevalent especially in human populations with low socioeconomic status and personal hygiene which promote the spread of these infections.
Aim: The objective of this study was to assess risk factors and co-infection of soil transmitted helminths and H. pylori among school age children living in Riverine slum settlements in Port Harcourt, Nigeria.
Methodology: A community-based study was conducted among 300 school age children from December 2018 to May 2019. Stool and venous blood samples were collected for analysis of STHs and H. pylori infection using standard methods, respectively after due ethical approval was obtained. Data was analyzed using SPSS version 16. A p ≤ 0.05 was considered as statistically significant.
Results: STHs and H. pylori IgG were detected in 36(12.0%) and 35(11.7%) of participants, respectively. The Prevalence was insignificant (P=05). Prevalence of H. pylori and STHs was not statistically associated with settlement location, age group or sex of the study. Poor hand washing practice and irregular deworming exercise are the major risk factors affecting the transmission of infection in the study populations.
Conclusions: Though prevalence is insignificant, we advice that better hygiene policies and adequate measures to prevent feacal- oral infection in school children for healthier status of school children and teenagers.
Controlling Wound Pathogen Using Stevia and Peppermint Based Mouth Gel
Authors: Shivani N. , Varghese Sheeja S. , Rajeshkumar S. 
Published: February 2022

Aim: To evaluate the antimicrobial activity of Stevia and peppermint based gel on Streptococcus aureus, E. coli and Pseudomonas.
Background: In recent years, the research concerning the use of herbal products has been vastly analyzed to assess their antimicrobial properties. It has been found that these herbs have certain phytochemicals which contributes to its antimicrobial property. The common oral wound pathogens are Staphylococcus aureus, E. coli and Pseudomonas and Stevia-peppermint based mouth gel was formulated to check its antibacterial property.
Materials and Methods: Stevia and Peppermint powder was bought from a local supermarket near Poonamallee. 1g of each stevia and peppermint was measured and dissolved in 100mL of distilled water. The mixture was boiled using heating mantle at 70oC for 15 minutes. Then the extract was filtered using Whatmann No.1 filter paper. The filtered extract was further condensed from 80mL to 10mL. 0.5 g of carbopol was added to the 10mL extract to make it in a gel consistency. This gel was focussed to act against the three wound pathogens, S. aureus, Pseudomonas, E. coli. Through agar well diffusion method, the antimicrobial property of various concentrations of the gel was tested and compared with known antibiotic amoxicillin.
Results: The current study revealed that Stevia- Peppermint based mouth gel had antimicrobial activity at all concentrations but was significantly less when compared with the standard and there was no significant difference in the antimicrobial activity between different concentrations of the gel used.
Conclusion: From the present study, it may be concluded that Stevia- Peppermint based mouth gel have potent antimicrobial properties.
Evaluation of Efficacy of 20% Nigella sativa on Gingival Health
Authors: Ilangovan Swetha , Rajasekar Arvina 
Published: February 2022

Background: Gingivitis is a reversible inflammation of the gingiva. If it is left untreated it will progress to irreversible damage to the tissues like mobility and tooth loss. Previous studies have found that use of an antibacterial agent along with scaling and root planing is ideal for treating periodontal diseases. Nigella sativa is a herb with excellent antioxidant, antiinflammatory and antibacterial properties and hence was used in this study.
Aim: The aim of the study was to evaluate the efficacy of 20% Nigella sativa mouthwash on gingival health in comparison to 0.12% chlorhexidine mouthwash.
Materials and Methods: The study was performed as a double-blinded, randomized controlled trial research study. A total of 30 patients were selected randomly, comprising two groups, 15 in each, aged between 18 and 28 years with gingivitis. The first group was advised to oral rinse with 0.12% chlorhexidine mouthwash and the second group with new formulated Nigella sativa herbal mouthwash for 1 week. The plaque index and gingival index scores were calculated before administering them the mouthwashes. Then subsequently after one week the plaque and gingival index scores were taken for the 30 patients. The final data was sorted in excel and statistically analysed using IBM SPSS software analysis, unpaired t-test. The results were interpreted as graphs and tabulations.
Results: The group 1 patients were found to have a mean plaque index value of 2.6±0.49 before mouthwash usage and post 1 week usage of chlorhexidine the plaque index was 1.53±0.51. The mean plaque index was 2.53±0.51 prior to usage of mouthwash in group 2 and 1.27±0.45 post usage of Nigella sativa mouthwash. The difference in plaque index between both the groups was found to be statistically non-significant (p=0.067). The mean gingival index of patients who used chlorhexidine was 2.53±0.51 before the mouthwash usage and 1.33±0.45 after mouthwash usage. In group 2 the gingival index before the mouthwash usage was 2.47±0.51 and after the mouthwash was 1.47±0.51. However the difference in gingival index between both the groups was not statistically significant (p=0.393)
Conclusion: The present study reveals that the Nigella sativa mouthwash was more effective in plaque control when compared to the standard chlorhexidine mouthwash. Herbal mouthwash shows promising results to be used as an alternative for chlorhexidine mouthwash for management of gingivitis.