bluuebunny/crossref_metadata_2025_split huggingface dataset:
Epidemiology of Urinary Tract Infection and Antibiotic Resistance Pattern in Patients Referred to Amiralmomenin Hospital of Gerash City in 2018
Authors: Rezaee Elham , Kashfi Seyed Adnan , Bagheri Parisa 
Published: September 2020

Background and Aims: Urinary tract infections are one of the most common human infections seen in all age groups and both sexes. Inappropriate use of antibiotics to treat urinary tract infection causes the resistance of the pathogens to the drug. The present study aimed to determine the frequency of gram-negative and gram-positive bacteria and antibiotic resistance patterns in patients with urinary tract infection.
Materials and Methods: Samples were cultured on Blood Agar and Eosin Methylene Blue. Colonieschr('39') growth was identified by biochemical tests and standard microbiological and antibiotic sensitivity tests, which were performed with the disc diffusion method according to the Clinical and Laboratory Standards Institute 2016 Standard.
Results and Conclusion: The isolated bacteria showed the highest susceptibility to imipenem (89.66%) and meropenem (87.21%) and the highest resistance to sulfamethoxazole (50.00%) and nalidixic acid (44.09%). So, using imipenem is recommended as the most effective antibiotic for the treatment of infection.
Vitamin E and Selenium Facilitate the Osteogenesis and Adipogenesis of the Human Adipose Tissue-Derived Mesenchymal Stem/Stromal Cells
Authors: Javadi Zeynab , Khoshdel Alireza , Fahmidehkar Mohammad Ali , Hajizadeh Mohammad Reza , Mahmoodi Mehdi , Mirzaei Mohammad Reza , Akyash Fatemeh , Aflatoonian Behrouz 
Published: September 2020

Background and Aims: Previous studies have shown that adipose-derived mesenchymal stem/ stromal cells are one of the sources of mesenchymal stem cells (MSCs) with the capacity to differentiate into various mesodermal cell lineages. MSCs with cytokines secretion capability, which contributes to repair damaged tissues have gained wide credence for future cell-based therapeutic applications. In this study, the effect of the different dosages of vitamin E and Selenium was assessed on the stemness of the human adipose tissue-derived MSCs (AD-MSCs).
Materials and Methods: Following 24 hours of cell treatments with different dosages of vitamin E and Selenium, MTT assay was used to assess the effect of them on cell proliferation. Moreover, the stemness of the AD-MSCs was assessed using osteogenic and adipogenic induction medium supplemented with the different dosages of the vitamin E and Selenium. Finally, Alizarin red and Oil-red O staining were performed to detect matrix mineralization and lipid droplet accumulation, respectively.
Results: MTT data revealed that the optimal concentration for vitamin E and Selenium were 125 µM and 121 µM for the viability of the AD-MSCs. Moreover, the effect of vitamin E and Selenium were assessed by osteogenic and adipogenic differentiation by optimal dosages obtained by MTT assay, respectively. Maximum mineralization and lipid droplet aggregation of the differentiated cells were detected at IC50 in comparison with the control group.
Conclusions: These results suggest that different dosages of vitamin E and Selenium could have various impacts on the proliferation and differentiation induction of human AD-MSCs.
Determination of NRF2 and GSTM1 Expression and Biomarkers of Oxidative Stress on Smoking and Nonsmoking Sperm: A Pilot study
Authors: Bidram Nasim , Nili-Ahmadabadi Amir , Javadi Iraj , Tabatabaei Seyedmahdi 
Published: September 2020

Background and Aims: Smoking has an influence on different semen parameters. It is regarded as a risk factor for infertility. This study aims to evaluate the effect of smoking cigarettes on the expression of nuclear factor erythroid 2-related factor 2 (NRF2) and glutathione S-transferase Mu 1 (GSTM1) genes and biomarkers of oxidative stress in sperm.
Materials and Methods: A case-control study was conducted on 15 men smoker (case) and 15 men nonsmokers (control) who had referred to infertility clinics in Isfahan, Iran. After sampling and analysis of semen quality parameters, gene expression of NRF2 and GSTM1 was determined using a Real time-polymerase chain reaction instrument. The lipid peroxidation and total antioxidant capacity (TAC) were evaluated by colorimetric methods.
Results: Sperm concentration and their progressive motility in smokers were significantly lower than the nonsmoker population (p<0.001). In addition, the lipid peroxidation level increased and TAC level (p<0.01) as well as gene expression of NRF2 (p<0.05) and GSTM1 (p<0.01) decreased compared to control groups.
Conclusions: Our data demonstrated that the NRF2 and GSMT1 expressions are significantly lower in human males with low sperm motility and correlated with specific sperm quality parameters.
Molecular Identification of Helicobacter pylori and IceA Genes Frequency from Dental Plaques Isolated from People Using PCR Method
Authors: Salari Zahra , Ranjkesh Atefeh , Behboudi Emad 
Published: September 2020

Background and Aims: Helicobacter pylori (H. pylori) is a gram-negative, microaerophilic, spiral-shaped flagellated bacterium that is urease, catalase and oxidase positive. One of its pathogenicity factors is the iceA gene. H. pylori has recently been recognized as a genetic indicator for the development and evolution of duodenal ulcer disease in the East. This study aimed to determine the presence of this bacterium in gingival plaques in non-endocrine patients in Bojnourd city, and the polymerase chain reaction technique examined the percentage of iceA gene.
Materials and Methods: A total of 100 samples of dental plaque were taken and transferred to a tube that has been physiologically placed. After DNA extraction, primer design was performed, and then the polymerase chain reaction was performed for the whole sample.
Results: Of 100 samples examined in this study, two samples of H. pylori were positive (2%), and the frequency of the iceA gene of two samples was positive (100%).
Conclusion: In the Bojnord city, the frequency of iceA gene in people is high, and the frequency of H. pylori in tooth plaques is low. Also, iceA gene can be considered as an indicator for predicting the contamination and risk of H. pylori infection in the region. To confirm the results, more molecular studies are required in other populations.
Effects of Icariin on Histomorphometric Changes of Testis and Prostate Induced by Acrylamide in Mice
Authors: Doctor Arastoye Marandi Mahsa , Yadegari Maryam , Shahedi Abbas , Pourentezari Majid , Anvari Morteza , Shahrokhi Raeini Azadeh , Dortaj Hengameh 
Published: September 2020

Background and Aims: This study aimed to observe the effect of Icariin on histomorphometric changes of testis and prostate induced by Acrylamide.
Materials and Methods: Male mice were divided into four groups (n=8): A is the control group and does not get any treatment, B is the sham group and only received drinking water. C group received Acrylamide 10 mg/kg. D group received Acrylamide 15 mg/kg+1.5 mg/kg of Icariin. Histological changes in testis and prostate were examined using stereological methods.
Results: Results showed decreases in testis weight of the group treated by (p≤0.01) and the group cured by Acrylamide +Icariin group (p≤0.05). The total volume of testis showed a reduction in the Acrylamide group compared to other groups (p≤0.05). The total number of spermatogonia and spermatocyte cells in the Acrylamide group showed a decrease in comparison with the other groups (p≤0.05). The total number of spermatid cells in the Acrylamide group indicated a significant reduction in comparison with the control and sham group (p≤0.05). The total number of sertoli cells in the Acrylamide group showed a reduction when the number of leydig cells in the Acrylamide group showed a significant decrease in comparison with the control, sham, and Acrylamide+Icariin groups (p≤0.05). The mean Johnsen score was decreased in the Acrylamide treated group compared to control, sham, and Acrylamide+Icariin groups (p≤0.05). Testosterone concentration in the Acrylamide group showed a reduction in comparison with control, sham, and Acrylamide+Icariin groups (p≤0.05).
Conclusion: Results demonstrated that Acrylamide altered the structure of the testis, prostate gland, and spermatogenesis stage, and Icariin treatment improved these histopathological changes.
Effects of Crude Aqueous Extract of Cola Acuminata Pods on the Reproductive System of Male Albino Rats
Authors: Odo Ogechukwu F , C Azubuike Nkiruka C , Achukwu Peter U , Ugwu Michael C , Udeogu Chisom H , Ike Ozoemena C 
Published: September 2020

Background and Aims: Cola acuminata pod extract (CAPE) is used in Nigerian traditional medicine to treat low sperm count in males. Hence, this study aimed to investigate the effects of CAPE on the reproductive system of male albino rats.
Materials and Methods: Preliminary acute toxicity testing, phytochemical screening, proximate analysis, and determination of vitamin E concentration were performed on the extract. Three groups (I, II, and III) of 12 rats were used in the study. Each group comprised three batches (A, B, and C) of 4 rats each for different periods (4, 6, and 8 weeks, respectively).
Results: Acute toxicity testing showed that CAPE had an oral lethal dose of 50% (LD50) of >5 g/kg body weight (b.wt) in rats. Vitamin E concentration was 0.511 mg/l. The caudal epididymal sperm count increased marginally from 4 to 6 weeks for rats treated with 800 mg/kg b.wt., but reduced significantly at 8 weeks for both CAPE treatment groups (II and III) (p<0.05) compared with the control group (I). Significant reduction (p<0.05) of sperm motility and serum testosterone levels at 8 weeks were observed. The histology of the reproductive organs revealed evident histo-architectural changes.
Conclusions: These results suggest that the aqueous pod extract of Cola acuminata causes marked alterations in reproductive organs and shows antispermatogenic and antiandrogenic effects when administered orally over 8 weeks in mature male rats leading to contradicting its use as a traditional remedy for low sperm count in males.
Mass Investigation on Intestinal Parasite Infection in Masjed Soleyman, Iran, 2010-2017: A Large Population Survey
Authors: Mazhab-Jafari Komeil , Rouhandeh Rouhollah , Bahrami Razieh , Shahrivar Firooz 
Published: September 2020

Background and Aims: Globally, intestinal parasitic infections are a significant risk to human health. These infections may cause many health problems for humans, such as reduced growth, especially in children. This study, epidemiologically, aims to investigate the prevalence of intestinal parasitic infections which are collected from three medical centers in the city of Masjed Soleyman located in the southwest of Iran from 2010 to 2017.
Materials and Methods: In this retrospective study, documented data of three medical center’s laboratories in Masjed Soleyman were collected through the years 2010 to 2017. In these medical centers, conventional parasitology methods such as direct observation are employed for detection, and other techniques have been practiced in required cases.
Results: Out of 45829 patients, 9.7% of the patients were infected by the intestinal parasites. Statistical analysis has revealed that there is a significant relationship between the rate of infection and sex and season.
Conclusions: Considering the obtained data, the incidence of protozoan parasites is more than worm infections. Despite increased levels of public health, parasitic infections that are transmitted directly are still found in the community. The air temperature, sex, environmental pollution, and lifestyle are effective factors in increasing or decreasing these infections.
Comparitive Analysis and Findings on Dct & Lbg Compression Techniques
Authors: Falahi Mr. Moayad Al , Sivakumar Dr. Janaki 
Published: September 2020

The main objective of this project is to develop an application to find the best compression technique to store Muscat College students' photographs in less storage. MATLAB software will be used to develop a Graphical User Interface GUI application and implement two image compression techniques which are lossless compression using the DCT algorithm and lossy compression using the LBG algorithm. The application shall allow the user to select and test a sample image by applying both these techniques for any student image he\she selects in order to compare the results by display the image after compression and the histogram to find which the most suitable compression technique is. Also, the application shall show the size of images before and after applying the compression process and show the compression ratio and relative data redundancy of compressed image/images. The main functionality is that the application shall allow the user to do bulk processing to apply image enhancement and image compression technique to enhance and compress all the photographs of students and store them in less space.
Implementation of Big-Data Applications Using Map Reduce Framework
Authors: Sahu kapil , Bhatt Kaveri , Saxena Prof. Amit , Singh Kaptan 
Published: September 2020

Clustering As a result of the rapid development in cloud computing, it & fundamental to investigate the performance of extraordinary Hadoop MapReduce purposes and to realize the performance bottleneck in a cloud cluster that contributes to higher or diminish performance. It is usually primary to research the underlying hardware in cloud cluster servers to permit the optimization of program and hardware to achieve the highest performance feasible. Hadoop is founded on MapReduce, which is among the most popular programming items for huge knowledge analysis in a parallel computing environment. In this paper, we reward a particular efficiency analysis, characterization, and evaluation of Hadoop MapReduce Word Count utility. The main aim of this paper is to give implements of Hadoop map-reduce programming by giving a hands-on experience in developing Hadoop based Word-Count and Apriori application. Word count problem using Hadoop Map Reduce framework. The Apriori Algorithm has been used for finding frequent item set using Map Reduce framework.
Key Factors Affecting Lecturer Productivity To Conduct Research
Authors: Harahap Hadry , Andriani Dewi , ES. Dedi Purwana , Susita Dan Dewi 
Published: September 2020

The effectiveness of higher education institutions must be measured in terms of research productivity, the ability to produce new knowledge in the form of research and publications. In this case, lecturers as academic staff are expected to have a high level of capacity, commitment, integrity and responsibility to achieve the stated teaching and learning goals. Then, the global challenges that must be faced increasingly demand the role of lecturers to be able to further improve their work performance to conduct research and publish it in reputable international journals such as Scopus Idexed and others. Lecturers are one of the important factors for creating competent university graduates, and the main role of tertiary institutions is teaching, research and community service and is directed to expand knowledge and open new avenues of science and technology. This study aims to analyze the factors that influence the productivity of lecturers producing international scientific articles at Private Universities using Structural Equation Modeling. The data used are primary data by conducting surveys with a total of 310 respondents, and the analysis used includes validity, reliability, multiple linear regression, multiple tests, and hypothesis testing. The results showed that the positive direct effect of transformational leadership style and communication on lecturer productivity. Both of these exogenous variables, transformational leadership style has a path coefficient value of py1 of 0.201 and CR (tcount) of 3.715, while the communication variable proves to be the most dominant influence on productivity as an endegent variable, 5,132.
The Forecasting Natural Gas demand in a region with seven models and evaluating their accuracy using as criteria five types of errors/residuals
Authors: Stathakis E. , Stambologlou E. 
Published: September 2020

The modeling of Natural Gas (NG) demand differs significantly from the demand for electricity in terms of the determinants that affect it, as all fields of economic activities in a modern economy are directly related to electricity but not to NG. But NG is the second energy type after electricity used in all countries in percentages greater than 10% in average terms. NG is going to be installed in the Region of East Macedonia-Thrace (REMTH) the next years. So, we consider it is worth to predict the NG demand in REMTH using eight deterministic forecasting models. In order to do it we used a dataset of 20 years concerning two Greek regions to which the NG is used that period and through them we built the eight forecasting models aiming to find the NG demand in the REMTH. In order to evaluate the reliability and accuracy of them we used four types of statistical errors, Mean Error (ME), Mean Absolute Error (MAE), Mean Absolute Percentage Error (MAPE) and Mean Absolute Scale Error (MASE). These are the most widely used measures of evaluating the accuracy of deterministic predictive models, due to their advantages of scale-independency and interpretability. When each of them is used alone has the significant disadvantage to produce infinite or undefined values for zero or close-to-zero actual values. In order to address this disadvantage, we propose a way to use the same time all of them measuring the accuracy of a model used to forecast the demand of Natural Gas in the Greek region EMTH. The innovation of this paper is that for NG demand forecasting were used seven different models and they are evaluated regarding their reliability /accuracy using five types of residuals or statistical errors
Using Constructivist Approach to Enhance Understanding of Mole Concept among Second Year Students in Chemistry at Adobewura Senior High School in Ashanti Region, Ghana
Authors: Baah Kennedy Ameyaw , Owusu Ansah Frank , Amoako Stephen Kwame , Boachie Solomon , Kwarteng Christian 
Published: September 2020

The aim of the research was to use constructivist approach to enhance performance of second year elective science students of Adobewura in mole concept. In order to achieve this, the researcher employed the following research questions; What methods do teachers use to teach mole concept and to what extent can constructivist approach be used to help students understand mole concept. Action research was used since action research is a way of assessing result while operating. Purposive sampling was used to select 30 students for the study. Data were collected through tests (pre-intervention and post-intervention tests). The scores of the pre and post intervention tests were compared and result analyzed. The analyzed results indicated that students’ performance had improved remarkably after the implementation of all the intervention. For instance, when the researcher implemented the demonstration techniques, 23 students scored marks within 41-90 representing 76.67% while 23.33% scored between 41-30. No student scored marks less than 30 marks. Based on the findings of the study, it can be concluded that there are a lot of performance enhancements in using constructivist approach in teaching and learning mole concept at Adobewura SHS since it improves conceptual understanding and also there is a positive effect on students’ attitudes of mole concept. The researcher recommends that the use of constructivist approach in teaching and learning chemistry at the Senior High School should be encouraged by Curriculum developers and education implementers for students should have a hands-on experience with mole concept in learning chemistry.

Keywords: Constructivist, Mole Concept, Demonstration, Purposive sampling, Intervention
Retrospective Evaluuation of the Outcomes in the Patients with Chiari's Malformation Undergoing Surgical Treatment
Authors: Kaya İsmail , Cingöz İlker Deniz , Yüceer Nurullah 
Published: September 2020

Introduction and Objectives: We aimed at evaluating retrospectively effects of surgery on the clinical symptoms and signs and imaging parameters in the patients with Chiari's malformation undergoing surgical treatment.
Materials and Methods: Medical charts and radiological images of the patients with Chiari's Malformation type I who had surgical treatment between January 2008 and July 2014 were reviewed retrospectively. The patients were classified as those having good (in whom the symptoms disappeared or reduced), stabilized (with preoperative symptoms persisting without any progression), or poor (with preoperative symptoms progressing in the postoperative period) outcomes.
Findings: All patients underwent FMD, Cl laminectomy and duraplasty. Seventeen subjects underwent removal of arachnoid adhesions, 10 subjects underwent opening of the fourth ventricle, and one subject underwent subpial resection. Of the patients, 28 were female and 11 were male with ratio of females to males being 25:1. The youngest patient was 5 years old and the eldest one was 51 years old, and mean age of the patients was 3231 ± 3131 years. The subjects were divided in two groups based on presence or absence of associated syringomyelia: those with syringamyelia (Group 1, n = 15) and those without syringomyelia (Group 2, n = 24). Postoperatively, in the Group 1 (SM 1- CM) 10 (66.7%) patients had good, 3 (20%) had stabilized and 2 (133%) patients had poor surgical outcomes. In the Group 2, 23 (918%) subjects had good and 1 (4.2%) subject had stabilized outcomes. For the Group 2, rate of recovery was higher than in the Group 1 (918% and 66.7%, respectively; Pearson's chi-square test, P = 0.014). Rate of recovery in 21 subjects with degree of tonsillar herniation being more than 11 mm (95.2%) was statistically significantly higher than 18 subjects with degree of tonsillar herniation being less than 11 mm (72.2%) (Pearson's chi-square test, P = 0.047).
Results: FMD is a safe and efficient surgical method for the Chiari malformations with or without associated syringomyelia. The subjects without associated syringomyelia benefited more from the surgery. Complications related to CSF may be reduced using additional tissue glues. Studies with greater number of cases should be conducted on the effect of degree of tonsillar herniation on surgical outcomes.