bluuebunny/crossref_metadata_2025_split huggingface dataset:
A CFD Modeling Examining the Distance between Propellers in a Mixing Tank Equipped with Two Propellers Using FLUENT Software
Authors: MollaHajizadeh Reza 
Published: May 2023

Abstract
In this paper, a three-dimensional (3D) simulation of turbulent flow in stirred tanks with a mechanical stirrer is investigated by Fluent software. The stirrer used in this tank is a PBT turbine type with an angle of 45°, which spreads the flow radially and axially. In this study, the RNG k-ε model is used for simulation. Also, the effect of the distance between two propellers has been investigated in baffled agitator tanks equipped with two propellers. For this purpose, two tanks with baffled stirrers, in which the distance between the two impellers and the distance of the lower impeller from the bottom of the tank are different (150 mm and with a shaft height of 495 mm) have been examined, and compared. But the distance of the lower turbine from the bottom of the tank and the distance between the two turbines in the two tanks are different. The stirrer used in both tanks is PBT type. In general, this research aims to compare the effect of the distance between two turbines on axial, radial, and angular velocities, the kinetic energy of turbulence (k), and the magnitude of velocity in different places in two investigated tanks. Also, the analysis of numerical results in speed contour, turbulence intensity and speed vector has been investigated.
Evaluation of radiofrequency ablation for papillary thyroid microcarcinoma with trachea-adjacent location versus trachea-distant location: a propensity score matching study
Authors: Jing Haoyu , Yan Lin , Xiao Jing , Li Xinyang , Jiang Bo , Yang Zhen , Li Yingying , Zhang Mingbo , Luo Yukun 
Published: May 2023

Abstract
Purpose
To evaluate the outcomes of radiofrequency ablation (RFA) for papillary thyroid microcarcinoma (PTMC) adjacent to the trachea and compare those with PTMC distant from the trachea.
Methods
This retrospective study reviewed patients who underwent RFA for solitary low-risk PTMC between June 2014 and July 2020. Patients were categorized into A group (PTMC adjacent to the trachea) (n = 211) and D group (PTMC distant from the trachea) (n = 790). The volume, volume reduction ratio (VRR), tumor disappearance, complication, and disease progression were assessed and compared between groups. Factors affecting disease progression were evaluated by Cox regression analysis.
Results
After a mean follow-up time of 30.0 ± 16.5 months, the overall VRR and tumor disappearance rate were 99.2 ± 4.6% and 87.5%, respectively. After propensity score matching, no significant differences were observed between the groups in the latest volume (0.8 ± 4.0 mm3 vs 0.6 ± 3.5 mm3, p = 0.631), VRR (99.5 ± 2.3% vs 99.5 ± 2.8%, p = 0.638), and tumor disappearance rate (87.6% vs 88.0%, p = 0.845). In addition, no differences could be found between groups in the incidence of disease progression (2.9% vs 3.3%, p = 0.624) and complication (0.5% vs 0.5%, p = 1.000). Tracheal adjacency was not associated with disease progression (p = 0.671).
Conclusion
RFA is an effective and safe alternative approach for eligible patients with PTMC located adjacent to the trachea and PTMC distant from the trachea.
Association between continuity of care and attendance of post-discharge follow-up after psychiatric emergency presentation
Authors: Wong Ben Hoi-ching , Chu Petrina , Calaminus Paul , Lavelle Cathy , Refaat Rafik , Ougrin Dennis 
Published: May 2023

Abstract
Background
The number of accident and emergency (A&E) hospital attendances by young people aged 18 or under with a recorded diagnosis of a psychiatric condition more than tripled between 2010 and 2022. After discharge from the hospital, attendance at follow-up appointments in the community is critical to ensure the safety of young people and optimise the use of clinical resources
Aims
To evaluate the association between follow-up attendance and the continuity of clinicians and clinical teams.
Method
A retrospective cohort study was conducted using electronic clinical record data from East London NHS Foundation Trust (ELFT), between April 2019 and March 2022. Multi-level mixed effects logistic regression was performed to model the follow-up attendance odds based on whether the same or different clinician and clinical team offered the initial A&E and the community follow-up appointment or whether a crisis team was involved.
Results
3134 A&E presentations by 2368 young people were identified within the study period. Following these presentations, 2091 follow-up appointments in the community were offered. The attendance rate increased by more than three times if the follow-up appointment was offered by the same clinician who saw the young person in A&E (odds ratio (OR) = 3.66; 95% CI 1.65–8.13). Whether the same clin ical team provided the community follow-up appointment, or whether a crisis team was involved before discharge made no difference to the likelihood of follow-up attendance.
Conclusions
The findings support the importance of the continuity of clinicians in the care of young people in crisis. Crisis service planners and policymakers should prioritise the continuity of clinicians in mental health service models and rota planning.
Effects of in vitro testing of glycyrrhetinic acid (GA) on the lipid metabolism of channel catfish (Ictalurus punctatus) fed a high-fat diet
Authors: Desouky Hesham Eed , Jiang Guang-zhen , Abasubong Kenneth Prudence , Dai Yong-Jun , Yuan Xiangyang , Adjoumani Jean-Jacques Y. , Liu Wen-bin 
Published: May 2023

Abstract
Fatty liver always strongly correlates with low growth and reduced harvest yield. However, some herbs in China can reduce the storage of hepatic fat. This study aimed to examine the lipid-lowering effect of glycyrrhetinic acid (GA) in channel catfish (Ictalurus punctatus) in vitro. Two different methods were performed to measure the effect of GA on the metabolism of fats in the fingerling of catfish.
First method: GA was injected directly into the abdominal cavity, where fish were fed on a high-fat diet with different time points (0H, 3H, 6H, 12H, 18H, 24H & 36H), and the highest TG level was found at 18 hours so this time was chosen to treat with GA. The fish were then injected with five levels of GA (0, 0.15, 0.3, 0.6, 1.2 mg/kg) in two diet groups of fish; normal-fat diet (ND) and high-fat diet (HFD). Injections of GA in channel catfish enhanced plasma and liver TC, TG, HDL & LDL, and lipid metabolism gene expression compared to HFD and ND. Nevertheless, treatment with GA significantly decreased gene expression of inositol requiring enzyme 1 (IRE1), spliced X box-binding protein 1 (xbp1s), DnaJ heat shock protein family (Hsp40) member B9 (DNAJB9), and glucose-regulated protein 78 (GRP78), an increased level of gene expression of MTTP and Apolipoprotein B(ApoB) in both ND groups and HFD groups. The best results of lipid profile parameters and gene expression of lipid metabolism genes have been observed at the injection level of 0.3 mg/kg GA both in ND and HFD.
Second method: cell culture of catfish hepatopancreas, five different levels of GA (0 - 0.15 - 0.3 - 0.6 - 1.2) μMwere tested with oleic acid (OA) as a fat source with a concentration of 0.4 mM. The use of GA with OA in cell culture led to reduced IRE1, xbp1s, DNAJB9, and GRP78 and increased MTTP & ApoB expression levels, while the opposite was observed when treated with OA alone. The best expression level was at a concentration of 0.3 μM GA. In conclusion, a high-fat diet could lead to aberrant lipid secretion by activating the IRE1/XBP1 pathway. However, adding GA restored this parameter to the normal level.
The salivary microbiome as a diagnostic biomarker of health and periodontitis: a large-scale meta-omics analysis before and after the removal of batch effects
Authors: Regueira-Iglesias Alba , Blanco-Pintos Triana , Relvas Marta , Alonso-Sampedro Manuela , Balsa-Castro Carlos , Tomás Inmaculada 
Published: May 2023

Abstract
Background
Methodological differences in 16S rRNA sequencing studies have significant effects on the diversity of the results obtained, making comparisons in the form of traditional reviews controversial. This meta-omics study applies the best practices based on the available evidence and employs sequences from different Illumina V3-V4 bioprojects. The goal is to evaluate the salivary microbiota at the amplicon sequence variant (ASV) level in terms of differential proportionality and predictive models. This is done in periodontally healthy and untreated periodontitis patients, both before and after the removal of batch effects (BEs).
Results
Before the removal of BEs, 265 ASVs from 115 species (2.69% and 20.07% of the totals detected, respectively) revealed significant differences in their centred log-ratio abundance values for healthy and diseased patients. After their removal, this number fell to 190 ASVs from 94 species (1.93% and 16.40%), with 148 ASVs from 75 species (1.50% and 13.09%) common to those obtained before removal. In the predictivity analysis, models constructed before BEs removal using all the samples (796) consisted of 16 ASVs (0.16%) and had an area under the curve (AUC) of 0.944; models built using two-thirds of the specimens (training = 531) comprised 35 ASVs (0.36%) and had an AUC of 0.955 after being validated on one-third of the samples (test = 265). After BEs removal, these figures deteriorated - the models required more ASVs (all = 200 − 2.03%; training = 100 − 1.01%) and had slightly lower AUC (all = 0.935; test = 0.947).
Conclusions
Nearly half of the differential proportionality relationships before the exclusion of BEs were spurious. Although removing them reduced the number of ASVs with differential proportionality for health and periodontitis by approximately one-third, almost twelve (all samples) and three (training/test) times as many predictive ASVs were required to distinguish between clinical conditions than before the BEs exclusion. Nevertheless, both before and after their eradication, all models suggested that saliva has relevant value as a biomarker for diagnosing health and periodontitis, with a small percentage of salivary taxa having an outstanding capacity to discriminate between these conditions. The main health-predictor ASV was Streptococcus oralis dentisani-AV1042; for periodontitis, these were Fusobacterium nucleatum vincentii-AV10, Mycoplasma faucium-AV213, Parvimonas HMT110-AV21, Treponema denticola-AV38, and Tannerella forsythia-AV15.
Development and analysis of polymer-based wave spring response with different infill density
Authors: M Venkata Subramanian , Gouda Krushna 
Published: May 2023

Abstract
The development of wave spring has enhanced performance characteristics like load bearing capability, stiffness, energy absorption and energy release technique in a constrained space. The wave springs can be developed by considering the number of turns, waves, thickness, which can be easily adjusted to accommodate stronger force and to meet specific technical requirements as per the area of applications. Wave springs are complex in design and can be fabricated by additive manufacturing technique. Advanced manufacturing methods provides full design freedom to develop the wave spring of various geometry. Present work is focused to evaluate the Polypropylene wave spring stiffness and its load bearing capacity, which may be helpful in the application of smooth landing of drones and robotic structures, mechanical pressure valves and washers. Limited study of the polymer-based wave spring properties and its material behavior has been studied. The contemporary work establishes the computational and experimental analysis of crest-to-crest wave springs which are designed with honeycomb infill pattern with infill density of 100%, 90% and 80%. Maximum load bearing capacity and stiffness of the different designed wave springs are obtained through universal testing machine. From the experimental results the average load bearing capacity of PP 100%, PP 90% and PP 80% at 75% of compressible distance of crest-to-crest wave spring from cycle 1 to 10. The results of the 1st cycle load bearing capacity are 234.075 N, 181.31 N and 178.58N respectively.
Studying the awareness of early detection of cervical cancer by conducting a cervical smear in Damascus and its countryside
Authors: Abdeen Dana Ahmad , Alreffaie Maram Musaad , Sakka Kanaan 
Published: May 2023

Abstract
Introduction: The Pap smear is a reliable, inexpensive, and effective screening test for cervical cancer; Cervical cancer is the most common type of cancer among women worldwide. This study aims to assess knowledge and awareness about early detection of cervical cancer among a sample of women in Syria and its association with social and demographic characteristics.Materials and Methods This cross-sectional study was conducted between January and March 2023 using the appropriate sampling pattern among a sample of women from the governorates of Damascus and Damascus countryside. The inclusion criteria included Syrian women 18 years and over, who were able to read and understand the questionnaire and fill it out completely. A self-administered and filled-out questionnaire in Arabic was used that included questions about demographic information, questions about awareness about early detection of cervical cancer using a Pap smear, and questions about behavioral intention. To do a cervical smear in the future. The chi-square test was used to study the relationship between the qualitative variables of the study and the degree of awareness about early detection of cervical cancer.Results Out of 1000 women who participated in the study, most of them were 40 years old and over, 39.8%, and 31–39 years old, 26.8%. 9.8% of the sample reported having sexually transmitted diseases before, of whom 71.1% reported having gonorrhea, 16.5% with chlamydia, and 6.2% with genital herpes. 33% knew that the Pap smear is the most useful way to detect cervical cancer. And 40.4% answered that women should undergo a cervical examination at least every three years. The degree of awareness was weak at 75.8%, and 53.2% showed a weak behavioral intention to conduct a Pap smear in the future.Conclusion The results of this study indicate that women's awareness and behavior towards Pap smear is insufficient and needs to be strengthened. Given the main reason participants cited for not having the test, all healthcare providers should educate and encourage women to have regular Pap smears. This is done through awareness campaigns, scientific seminars, and social media.
Does Higher Education Influence on Women Empowerment? - A Perceptual Study
Authors: Kulal Abhinandan , N Abhishek , Kumar Sanath , P Gururaj 
Published: May 2023

Abstract
In today’s world higher education is crucial not only as a source of knowledge but also as a means to increase one’s employability. Even though this statement holds good for both men and women, higher education has a more predominant role in the life of woman because higher education not only promotes the financial stability of women but also boost self-confidence and independence in her personality. In order to understand to what extent higher education influences the various aspects of women empowerment namely Social, Psychological, Economic, Political and Educational, a perceptual study of women with higher education has been undertaken in Karnataka. A multiple regression analysis was used to check the influence of higher education on women empowerment and depicted the path analysis using Structured Equation Model. The study revealed that higher education significantly influences the overall empowerment of women and it also exhibited that there is no association between women’s perception on overall empowerment among demographic parameter except monthly income.
Prevalence of Peri-implant Diseases in Patients Attending a Colombian University Dental Clinic: A
Retrospective Study
Authors: Pérez F. , Urueña S. , Calderón L. , Martínez S. , Garzon H.S. 
Published: May 2023

Introduction:
Due to the growing demand for dental implants to treat edentulism, the presence of peri-implant diseases
(PD) is also increasing. Estimates of the prevalence of PD in the world continue to be heterogeneous.
According to the new classification of periodontal and peri-implant diseases in the Colombian population,
its frequency was unknown.

Objective:
To evaluate the prevalence of PD in patient assistants in a dental clinic of a Colombian university in
Bogotá between 2015-2020.

Methodology:
Cross-sectional observational study based on dental records. From a sample frame of 370 dental records of
patients treated with dental implants, a sample size of 156 was established and chosen randomly. An analysis
was performed through descriptive and inferential statistics. Statistical significance was considered
p < 0.05. The open statistical package R was used.

Results:
The final sample was 216 implants. The prevalence of peri-implant health was 50.93%, peri-implant mucositis
31.48%, and peri-implantitis 17.59%. There was a significant relationship between elevated Silness and Löe
index and female gender with the development of PD (
p=0.000). Systemic conditions other
than diabetes, implant placement time, simultaneous regeneration, surgical and post-surgical complications,
placement site, and adherence to maintenance therapies did not have statistical significance.

Conclusion:
The prevalence of PD was 49.07% in these implants. This indicates the need for a follow-up program and
supportive peri-implant therapy.
Association between Self-perceptions of Periodontal Health and Electronic Cigarette use in Young Adults
Authors: Miguras Maite , Leon-Rios Ximena Alejandra 
Published: May 2023

Background:
The present study aimed to determine the association between self-perceptions of periodontal health and electronic cigarette use.

Material and Methods:
The study used an observational, analytical and cross-sectional design. 189 young adults aged 18 to 29 from the Metropolitan area of Lima, Peru, were recruited. In order to evaluate self-reported periodontal health, a questionnaire conceived by Quiroz et al. (2017) was used. This includes 13 questions divided into two dimensions (habits and self-perceived periodontal health). Poisson regression with robust variance was used to examine associations between qualitative variables and calculate raw and adjusted prevalence ratios.

Results:
59.46% of participants using electronic cigarettes were found to have a poor perception of gum health. Statistically significant associations were produced between poor perceptions of gum health and vaping, regarding both raw data (PR=0.81; 95% CI: 0.69-0.95; p=0.011) and data adjusted to consider covariates (PR=0.82; 95% CI: 0.69-0.97; p=0.021). No associations were observed for the dimensions of bleeding during brushing, reddish, and/or swollen gums.

Conclusion:
A relationship was found between poor perceptions of gum health and electronic cigarette use.
Thermocycling Stain Challenge and Colour Stability of two Current Zirconium Silicate-filled Indirect Composite Restorative Materials
Authors: Kassim Zethy Hanum Mohamed , Faiz Anuar Muhamad Alif , Ramli Sujana , Ismail Ikmal Hisham , Angelis Nicola De 
Published: May 2023

Aim:
This study compares the colour stability of two zirconium silicate-filled indirect composite materials CM and its improved formulation CMD using an in vitro thermocycling stain challenge model with 2 immersion solutions. The rationale of the thermocycling stain challenge model is to replicate the intraoral conditions that the indirect composite materials may be exposed to during a clinical service, water or saliva absorption and cyclical exposure to staining food colourant at varying temperature extremes.

Materials and Methods:
Ten discs each from shade A1 subtypes of CM and CMD indirect composites (Dentine Body A1B, Incisal 58, and Translucent HVT) were subjected to a thermocycling stain challenge following final polishing, which consisted of static immersion in 37°C of distilled water, followed by 500 thermocycles in 5°C of tea and 55°C of soy sauce and finally a 10-minute cleaning using an ultrasonic device. L*, a* and b* colour coordinates were measured, and the mean colour difference expressed as Delta E (ΔE) at different time points of the experiment were calculated and compared.

Results:
CM and CMD indirect composites had a significant color difference at all experimental time points (F=37.818, p<0.001). ΔE for CM subtypes and CMD subtypes in descending order, respectively, were Translucent HVT>Incisal 58>Dentin Body A1B and Incisal 58>Translucent HVT>Dentin Body A1B.

Conclusion:
CMD indirect composite showed improved colour stability compared to CM indirect composite.

Clinical Significance:
Limiting the usage of translucent shades and polishing according to the manufacturer’s recommendation may improve the overall colour of prostheses made using indirect zirconium silicate-filled composite materials.
Acoustic, FTIR and Raman spectroscopic studies of aspartame and citric acid
Authors: K M Benazir Banu , N S Shubhashree , George Preetha Mary 
Published: May 2023

aims:
To study the molecular interactions between artificial sweetener and edible acid

background:
Ultrasonics, Material Science

objective:
To determine the molecular interactions between artificial sweetener and edible acids using acoustical parameters

method:
Acoustical parameters, spectroscopy and stability constant

result:
The molecular interactions and functional groups that are present is found

conclusion:
As the concentration increases, acoustical parameters like ultrasonic velocity, viscosity, density, Relaxation time, acoustic impedance while, other acoustical parameters like adiabatic compressibility and intermolecular free length decreases with the increases with concentration. This proves that there is a strong interaction between solute and solvent.

other:
Spectroscopy Experimental Study
Multirresistencia a antibióticos y alternativas para resolver esta crisis
Authors: Bertrand Brandt , Morales-Martínez Adriana , Hernández-Adame Pablo Luis , Muñoz-Garay Carlos 
Published: May 2023

Las evaluaciones estandarizadas en el ámbito educativo tienen una larga historia, que inicia a principios de siglo XX. El campo de la Psicología y de la Educación ha impactado enormemente el mundo educativo y, últimamente, ha servido para diseñar políticas públicas y para rendir cuentas a la sociedad. La principal característica de las pruebas estandarizadas es que pueden administrarse a una gran cantidad de personas, cuyas respuestas se califican de manera automática con dispositivos electrónicos. Su gran desventaja radica en que utilizan, principalmente, el formato de selección de respuestas que hace un tanto artificial la evaluación. A pesar de esta limitación, las evaluaciones estandarizadas se utilizan con una gran variedad de propósitos: desde la admisión a instituciones educativas hasta la evaluación de la calidad educativa de un país. A lo largo de su historia, las evaluaciones estandarizadas han sido objeto de críticas, algunas de ellas justas y otras no. Dada su importancia, el propósito de este texto es precisar lo que se entiende por evaluaciones estandarizadas de aprendizaje, describir su origen y evolución en el ámbito educativo, explicar sus principales usos y puntualizar las limitaciones y retos que tendrán.
El Programa Análisis Institucional y Pedagogías Alternativas. Orígenes, avances y preocupaciones actuales
Authors: Reinoso Marta , Ramírez Sergio , Rotman Silvio , Cornejo Pedro 
Published: May 2023

Presentaremos en esta ocasión una reseña sobre historia, situación y prospectiva del Grupo de Investigación/Extensión del Programa Análisis Institucional y Pedagogías Alternativas (PAIPA) y del Servicio de Intervención y Asesoramiento Institucional (SIAI) de la Unidad Académica Río Gallegos –UNPA; con el propósito de dar cuenta de las características de su dinámica y el acontecer dramático de los equipos en distintos momentos de su trayectoria.