bluuebunny/crossref_metadata_2025_split huggingface dataset:
Remoción de arsénico (III) en sistemas acuosos por adsorción utilizando sólidos naturales de Ecuador
Authors: San Martín Delly , Medina Daniel F , López Carmen Milena , Aguilar Silvio , García Luis V. , Guaya Diana 
Published: September 2021

The aim of this work was to investigate the properties of two clays and a natural zeolite available in Ecuador, for the removal of Arsenic (III), (As (III)), in synthetic aqueous solutions. The adsorbents were prepared from the powdered solids, shaped as cylindrical extrudates of 0.5 cm in length by 0.2 cm in diameter approximately, and characterized by X-ray Diffraction (XRD), X-ray Fluorescence (FRX) and specific area ( Ae). Arsenic adsorption in aqueous systems was determined by charging load experiments, using a dosage of 0.1 L of solution per grame of adsorbent, at 30 ° C in a stirred system (100 r. p. m.). The Arsenic content was determined by means of atomic absorption spectrophotometry with a hydride generator. The kinetics absorption was analyzed by following the variation of the concentration of an 80 mg As/L solution, taken at different times for an extended period of 24 hours. The experimental data showed a good fit using a pseudo-first-order equation for the natural zeolite and pseudo-second-order equation for the two clays. The maximum adsorption capacity of As was higher for clays (13-15 ) compared to zeolite (5-6 ). These values are lower compared to those reported in the literature, however, the solids studied have the advantage of requiring a simple preparation process and they represent an abundant cheap raw material in the country.
Third Space Creates Collaborative Environments to Develop Pre-service Teachers
Authors: Steiner Amanda , Bell Julie , Wilcoxen Christina 
Published: September 2021

In the fall of 2012, 11% (n=157) of clinical practice (i.e. student teaching) candidates at a metropolitan university were in jeopardy of not passing clinical practice. Public schools in the area began to voice their concerns, and placements of candidates became a challenge. As a result, the university re-envisioned the program, utilizing third space to facilitate discourse between local school districts and university faculty. The development of third space was based on program data, which led to the following shifts in the program: scaffolded coursework with increased time in the field; instructional coaching prior to clinical practice; and a system for collecting feedback to sustain partnerships. Collaboration between P-12 schools and the university was essential in preparing candidates to connect theory and apply it in practice. By spring 2016, the initiatives implemented led to a 12% decrease of candidates in jeopardy of not passing clinical practice. As the teacher preparation program continues to grow, one of the biggest challenges is continuing to build and sustain new partnerships. The authors provide a framework for how programs could adapt some of these initiatives to develop and sustain university and school partnerships.
An Analysis of Product Dimensions Out of Specification as Quality Claim Improvement Activity : Application of 8D Method in the Injection Plastic Industry
Authors: Lubas Wahyudi Pongky , Wulandari Anita 
Published: September 2021

Every company tries to find ways to maintain its market position in an increasingly competitive business environment. In order to be successful, companies need to achieve their objectives and goals to make their vision a reality while adhering to their mission. Company claims report in the few years still hasn’t solved yet. Such complaints are significant because customersatisfaction can only be improved if the root causes of the problem is clearly identified. In the plastic industry that produces parts for the automotive industry, a systematic method named 8D is used to analyze product conformity to specifications. The 8D method consists of nine disciplines problem-solving. The original purpose of 8D method was to eliminate the defect causing the problem, thus restoring customer satisfaction and level up the quality level of the company. This research established the suitability of the 8D for complaint settlement. 8D involves teamwork to solve the problem and using a 9-step structural approach. This case study resulted that the 8D is effective. The total customer claims at the end of last year until this year in Dec 2020 totaled zero (0) and process rejection for incorrect dimensions were reduced from 0.07 % to 0.01%.
Response of Growth and Yield of Soybean (Glycine max l. Merril) to the Method and Dose of Leachate Liquid Organic Fertilizer Application
Authors: Hasnelly Hasnelly , Yasin Syafrimen , Agustian Agustian , Darmawan Darmawan 
Published: September 2021

The high demand for soybeans cannot yet be met by domestic production. Thus, a way to increase soybean production is necessary, one of which is to use liquid organic fertilizer derived from landfill leachate. This study aimed to examine the application method of liquid organic fertilizer (LOF) from landfill leachate to the soil and leaves and to determine the concentration giving the best growth and yield of soybean plants. The study was a field-research arranged in a completely randomized design (CRD) consisting of six treatments and four replications, which was carried out in a greenhouse. The treatments include A (0 LOF/L water), B (20 ml LOF/L water), C (30 ml LOF/L water, D (40 ml LOF/L water), E (50 ml LOF/L water) and F (60 ml LOF/L water). The liquid organic fertilizer was applied through the soil and leaves at a dose according to the treatments. The results showed that the application of liquid organic fertilizer from landfill leachate was better applied to the soil than to the leaves. The liquid organic fertilizer given had a significant effect on the leaf area (cm2), crop weight (g), and plant seed weight (g), but not on the plant height (cm) and stem diameter (cm). Liquid organic fertilizer application is better given to the soil than to the leaves based on the independent T test. The liquid organic fertilizer from landfill leachate at a concentration of 40 ml/L of water had the best effect on the growth and yield of soybean plants.
Aberrant Behaviors of Heavy Vehicle Drivers Carrying Hazardous Materials at an International Border in Iran
Authors: Sadeghi Teymur , Arghami Shirazeh , Kamali Koorosh , Sadeghi Gholamreza 
Published: September 2021

Background: Most road collisions are directly attributed to human factors. Since aberrant behaviors of drivers play a pivotal role in the occurrence of road accidents, it is worth studying driver behaviors in a riskier situation of carrying hazardous materials. This study aimed to evaluate the behaviors of the drivers carrying hazardous materials at the international border of Bashmaq-Marivan, Iran.
Methods: This descriptive-analytical study was conducted on 250 Iranian drivers carrying hazardous materials at the international border of Bashmaq-Marivan. The participants were included taking a census. Data were collected using the Manchester Driver Behavior Questionnaire (MDBQ). Data analysis was performed by SPSS v 16. The p-value of less than 0.05 was considered statistically significant.
Results: The drivers carrying inflammable liquids had more lapses compared to those carrying inflammable gases. The drivers with less driving experience and higher driving speed had more errors, as well as aggressive and ordinary violations. Higher rates of aggressive violations and errors were detected in young drivers, while the drivers with higher rates of accidents had comparatively more lapses and ordinary violation.
Conclusion: Considering the effects of age, driving experience, high speed, and accident experience on aberrant behaviors in driving, it is recommended that public training targeting specific groups be implemented regarding the legal constraints of driving.
The Relationship between Third Ventricle Diameter, Motor Disability and Cognitive Decline in Patients with Multiple Sclerosis
Authors: Kamali Maede , Joghataei Mohammad Taghi , Almasi-Dooghaee Mostafa , Babaie Mahla , Esmaeili Sara , Nouri-Shirazi Shabnam , Abbasi Mohammad Hossein , Abdi Yasaman , Mirzaasgari Zahra 
Published: September 2021

Background: Multiple Sclerosis (MS) causes brain atrophy at the early stages of the disease which leads to progressive motor and cognitive dysfunction. Brain atrophy can be diagnosed indirectly by measuring the Third Ventricle Diameter (TVD) using Trans Cranial Sonography (TCS). The purpose of the current study was evaluation of TVD in MS patients using TCS to examine its possible correlation with cognitive dysfunction and Expanded Disability Status Scale (EDSS).
Methods: Seventy-four patients with a definite diagnosis of MS were enrolled in this study. Transverse diameter of the third ventricle was measured using TCS. All patients were assessed by neurological examination and the level of disability was measured via EDSS. The cognitive performance was assessed by the Brief International Cognitive Assessment for Multiple Sclerosis (BICAMS). Pearson’s correlation was performed to evaluate possible correlations and p-value<0.05 was considered statistically significant.
Results: From the total 74 individuals, 58.1% were diagnosed with Relapse-Remitting MS (RRMS) (n=43) and 43.9% with Secondary-Progressive MS (SPMS) (n=31). The mean EDSS score was 1.81±1.38 (Range of 0-10). The mean TVD was 5.61±1.82 cm which had no statistical correlation with the EDSS score, but it was significantly wider in group with EDSS score>3 when compared to the group with EDSS score≤3 (p-value=0.0001). The mean BICAMS score was 0.65±0.57 and there was no statistical correlation between BICAMS score and TVD.
Conclusion: Measuring the diameter of the third ventricle using TCS appears to be an appropriate method to diagnose brain atrophy and is associated with cognitive dysfunction in the process of MS. Our data emphasized no association between the diameter of the third ventricle and cognitive dysfunction.
The Effect of Telerehabilitation on Quality of Life, Exercise Capacity, and Spirometry Indexes in Patients with Chronic Obstructive Pulmonary Disease in Masih Daneshvari Hospital
Authors: Ghadimi Somayeh , Fakharian Atefeh , Abedi Mohsen , Zahiri Reyhaneh , Norouz Afjeh Mahsan , Mirenayat Maryam Sadat 
Published: September 2021

Background: Chronic Obstructive Pulmonary Disease (COPD) leads to limited activity and reduced quality of life. Treatment of this disease is a long-term process that requires the cooperation of patients in monitoring and treatment.
Methods: In the present study which was conducted from April 2019 to March 2021 in Masih Daneshvari Hospital, Tehran, Iran, 75 patients were randomly divided into telerehabilitation and control groups. Patients in the control group received pulmonary rehabilitation including respiratory, isometric, and aerobic exercises for 8 weeks, three times per week. In the second group, patients were given a lung rehabilitation booklet and asked to repeat the exercises three times a week for four weeks according to a specific schedule. In addition, patients installed Behzee care application on the mobile phone that recorded various indicators such as heart rate, SpO2, dyspnea, fatigue, and daily activities. This application reminded the patient of the program every day and at a specific time.
Finally, the patients’ conditions were compared in the two groups after 8 weeks using CAT and mMRC questionnaires and 6-Minute Walk (6MW) exercise indices as well as spirometry tests.
Results: In all four indicators (6MW, CAT, and mMRC questionnaires as well as spirometry), patients showed improvement after rehabilitation (p<0.001). This improvement was significantly higher in the telemedicine group compared to the other group (p<0.01).
Conclusion: The use of telerehabilitation in COPD patients is effective in improving spirometry indices, quality of life, as well as activity and sports indices.
Predictability of Discrimination Coefficient and Difficulty Index of Psychiatry Multiple-Choice Questions
Authors: Soraya Shiva , Shabani Amir , Kamalzadeh Leila , Kashaninasab Fatemeh , Rashedi Vahid , Saeidi Mahdie , Seddigh Ruohollah , Asadi Shabnam 
Published: September 2021

Background: Multiple-choice questions are among the most common written tests. This study aimed to evaluate the faculty members’ability to determine and predict the level of difficulty and discrimination coefficient of multiple-choice tests at Psychiatry Department.
Methods: All faculty members at Psychiatry Department of Iran University of Medical Sciences participated in this study. The difficulty and discrimination coefficient of all questions (150 questions) of the mid-term exam of psychiatric residents were measured with both software program and formulas by hand. Then, from each group of questions with high, medium, and low difficulty coefficient, 10 questions (30 questions in total) were selected and provided to faculty members for ranking each question in terms of difficulty and discrimination coefficient. Finally, the correlation between faculty members’ evaluation and standard results was measured by the Spearman’s correlation. To calculate the discrimination coefficient, the number of people who answered a question correctly in the low-score group was subtracted from the high-score group and then the result was divided by the number of people in a group.
Results: Twenty-five faculty members participated in this study. There was a significant negative correlation between difficulty level and discrimination coefficient in the whole group (r=-0.196, p=0.045), but this was not the case in the upper and lower groups (r=-0.063, p=0.733). In addition, the correlation between the discrimination coefficient obtained from the formula and the average discrimination coefficient of faculty members was not significant (r=-0.047, p=0.803).
Conclusion: It seems that the ability of faculty members to predict the discrimination coefficient and difficulty level of questions is not sufficient.
Evaluacion De Compuestos Fenolicos De (Citrus sinensis) Y Su Capacidad Antioxidante
Authors: Vega Contreras Nelson Alfonso , Torres Salazar Martha Liliana 
Published: September 2021

La presente investigación tiene como objetivo principal evaluar los compuestos fenólicos extraídos de la cáscara de la naranja valencia (Citrus. sinensis), esto con la finalidad de ser aplicados en la industria cárnica como antioxidantes, y su posible aceptación sensorial, para lo cual se aplicaron dos métodos diferentes de extracción, siendo estos el ultrasonido y Soxhlet, utilizando el etanol como solvente, donde último el método resulto más eficiente para la extracción de los compuestos fenólicos, con un porcentaje de efectividad significativo, la identificación se realizó mediante cromatografía por HPLC/DAD, en la cual se detectaron compuestos como ácido galico, acido para hidroxibenzoico, ácido vanilico, ácido cafeico, acido p-cumarico, ácido felurico, entre otros, la determinación de la actividad antioxidante, se realizó por la decoloración del beta caroteno el cual decolora rápidamente sin la presencia de un antioxidante, la aplicación de los compuestos fenólicos se realizaron en productos embutidos (chorizos) crudos frescos, en donde se sometieron a una evaluación sensorial para mirar su posible aceptación lo que permitió concluir que las cascaras de Citrus Sinensis tiene una alta capacidad de inhibir la oxidación de los productos cárnicos.
Actividad Antioxidante De Los Musgos Breutelia subdisticha, Leptodontium viticulosoides y Pylaisia falcata
Authors: Tellez-Rocha Nathaly , Moncada Bibiana , Pombo-Ospina Luis Miguel , Rodriguez-Aguirre Oscar E 
Published: September 2021

Los musgos son utilizados por muchas culturas para tratar diferentes enfermedades, probablemente por sus compuestos bioactivos, algunos de los cuales pueden presentar actividad antioxidante. Esta investigación evaluó la actividad antioxidante (AA) de Breutelia subdisticha (Hampe) A. Jaeger, Leptodontium viticulosoides (P. Beauv.) Wijk & Margad. y Pylaisia falcata Schimp., a partir de extractos de diclorometano y etanólicos, mediante los métodos 2,2-difenil-1-picrilhidracilo (DPPH*) y ácido 2,2′-azino-bis-3-etilbenzotiazolin-6-sulfónico (ABTS*+). A los extractos obtenidos mediante la técnica Soxhlet se les determinó la concentración inhibitoria (IC50) y la actividad antioxidante relativa (%AAR), con posteriores análisis estadísticos de ANOVA y post-hoc de Tukey. Los extractos etanólicos presentaron mayor capacidad antioxidante que los de diclorometano. Por el método DPPH* los extractos etanólicos mostraron una %AAR respecto al ácido ascórbico de 3.06 para L. viticulosoides, 177.00 para B. subdisticha y 141.66 para P. falcata; mientras que con el método ABTS*+ la %AAR con respecto al ácido ascórbico fue de 1.75 para L. viticulosoides, 139.17 para B. subdisticha y 120.22 para P. falcata. Como conclusión, L. viticulosoides exhibió la mejor actividad antioxidante, por lo cual se sugiere continuar con su investigación y lograr una aplicación farmacológica de origen natural.
Increased Early Mortality in Bilateral Simultaneous TKA Using Conventional Instrumentation Compared with Technology-Assisted Surgery
Authors: Kirwan David P. , B(IMIS) Yi Peng, , Harris Ian A. 
Published: September 2021

Background:
Controversy exists regarding the safety of bilateral simultaneous total knee arthroplasty (BSTKA). When conventional instrumentation is used, the increased fat emboli that result from the insertion of intramedullary rods may increase the risk of perioperative complications. We hypothesized that the use of technology-assisted instrumentation (avoiding intramedullary involvement) would be associated with a lower rate of early postoperative death compared with the use of conventional instrumentation.

Methods:
We compared the 30 and 90-day rates of mortality following BSTKA performed with conventional versus technology-assisted instrumentation from 2003 to 2019, with use of data from a large national registry. Firth logistic regression analysis was utilized, adjusting for age, sex, and procedure year for all BSTKAs performed during the study period. For procedures performed from 2015 to 2019, odds ratios were additionally adjusted for American Society of Anesthesiologists physical status classification and body mass index.

Results:
A total of 34,908 BSTKAs were identified. The proportion of cases utilizing technology-assisted instrumentation increased over the study period. The odds ratio of death within 30 days after technology-assisted BSTKA, adjusted for age, sex, and procedure year, was 0.26 (95% confidence interval [CI], 0.08 to 0.83; p = 0.02). The odds ratio, adjusted for age, sex, procedure year, American Society of Anesthesiologists classification, and body mass index, was 0.26 (95% CI, 0.09 to 0.74; p = 0.01). The corresponding odds ratios for 90-day mortality were 0.25 (95% CI, 0.09 to 0.72; p = 0.01) and 0.26 (95% CI, 0.10 to 0.67; p = 0.005), respectively.

Conclusions:
Technology-assisted BSTKA was associated with a significant reduction in early mortality compared with the use of conventional instrumentation. This difference may be explained by the reduced fat emboli associated with technology-assisted BSTKA and is likely to be clinically important on a population scale.

Level of Evidence:
Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
Dynamic Positioning of An Oceanographic Research Vessel Using Fuzzy Logic Controller in Different Sea States
Authors: Tiwari Kunal , P. Krishnankutty 
Published: September 2021

Abstract
A dynamic positioning system is computer controlled system which maintains the positioning and heading of ship by means of active thrust. A DP system consist of sensors, observer, controller and thrust allocation algorithm. The purpose of this paper is to investigate the performance of proportional derivative type fuzzy controller with Mamdani interface scheme for dynamic positioning of an oceanographic research vessel (ORV) by numerical simulation. Nonlinear passive observer is used to filter the noise from the position and orientation. A nonlinear mathematical model of the ORV is subjected to the wave disturbance ranging from calm to phenomenal sea. Robustness and efficiency of the fuzzy logic controller is analysed in comparison with the multivariable proportional integral derivative (PID) and the linear quadratic regulator (LQR) controller. A simplified constrained linear quadratic algorithm is used for thrust allocation. The frequency response of the closed loop system with different controllers is analysed using the bode plot. The stability of controller is established using the Lyapunov criteria.
Association of Three micro-RNA Gene Polymorphisms with the Risk of Cervical Cancer: A Meta-Analysis and Systematic Review
Authors: Xu Jingyu , Fan Yihua , Zhang Qiang , Geng Junze , Xia Tian 
Published: September 2021

Abstract
Objective: Regulation of single nucleotide polymorphisms (SNP) in micro-RNA (miRNA) on the host cells may be one of the most important factors influencing the occurrence of cervical cancer based on the prevalence of HPV infection and the development of cervical cancer. In order to explore the contribution of miRNA polymorphism to the occurrence and development of cervical cancer, we conducted an analytical study. Methods: We selected the polymorphisms of three widely studied miRNAs (miRNA-146a rs2910164, miRNA-499 rs3746444 and miRNA-196a2 rs11614913). Then we conducted a meta-analysis (for the first time) to investigate their susceptibility to cervical cancer. Case control studies on the correlation between these three miRNAs and cervical cancer susceptibility were investigated by searching on from Pubmed, The Cochrane Library, Embase, CBM, CNKI, Wanfang database and VIP database. Basic characteristics were recorded and meta-analysis of the case studies was performed using STATA 15.1 software. Results: The miRNA-146a rs2910164 mutation significantly reduced the risk of cervical cancer in both recessive model (OR= 0.804, 95%CI= 0.652-0.992, P= 0.042；CC vs. CG+GG) and allelic model (OR= 0.845, 95%CI= 0.721-0.991, P= 0.038；C vs. G). There was no significant correlation between miRNA -499 rs3746444 and the risk of cervical cancer. The miRNA -196a2 rs11614913 mutation was significantly associated with a reduced risk of cervical cancer in homozygous model (OR= 0.641, 95%CI= 0.447-0.919, P= 0.016；TT vs. CC), dominant model (OR= 0.795, 95%CI= 0.636-0.994, P= 0.045；CT+TT vs. CC), recessive model (OR= 0.698, 95%CI= 0.532-0.917, P= 0.01；TT vs. CC+CT), and allelic models (OR= 0.783, 95%CI= 0.643-0.954, P= 0.015；T vs. C). Conclusion: In summary, this meta-analysis shows that the mutant genotypes of miRNA -146a rs2910164 and miRNA -196a2 rs11614913 are associated with a reduced risk of cervical cancer. Therefore, they may be two gene regulatory points for the prevention of cervical cancer.PROSPERO Registration number: CRD42021270079.