Analysis Of Test Data Research Articles

Prediction Of Brushless DC Motor And Propeller Efficiency Using An Artificial Neural Network Model

This study focuses on an artificial neural network model that allows users of brushless motor and propeller test rigs to compare the accuracy of data received in the interface software during testing. Brushless motors are widely used in modern aviation and industrial applications. Therefore, it is essential to analyze the factors affecting motor efficiency and accurately predict this data. This study involves the creation of an artificial neural network model from data to predict the percentage of motor efficiency for the brushless motors and propellers used in the test, whose length is measured in inches. Within the scope of this research, a useful tool is provided for users to flexibly test motor and propeller configurations and accurately analyze test results. The developed artificial neural network model has the ability to make reliable and accurate predictions for various motor-propeller configurations. Furthermore, the model is easy to use and offers expandable features. This study aims to create a valuable reference source for users of brushless motor and propeller test rigs to effectively analyze test data.

Analysis of Controlling Factors of Pore Structure in Different Lithofacies Types of Continental Shale—Taking the Daqingzi Area in the Southern Songliao Basin as an Example

Due to the influence of terrigenous debris, the internal pore structure of continental shale is highly heterogeneous, and the controlling factors are complex. This paper studies the structure and controlling factors of shale reservoirs in the first member of the Qingshankou Formation in the Southern Songliao Basin using core data and various analytical test data. The results show that the original deposition and subsequent diagenesis comprehensively determine the shale reservoirs’ pore structure characteristics and evolution law. According to the severity of terrigenous debris, the shale reservoirs in the study area are divided into four categories and six subcategories of lithofacies. By comparing the characteristics of different shale lithofacies reservoirs, the results show that the lithofacies with a high brittle mineral content have more substantial anti-compaction effects, more primary pores to promote retention and a relatively high proportion of mesopores/macropores. Controlling the organic matter content when forming high-quality reservoirs leads to two possibilities. An excessive organic matter content will fill pores and reduce the pore pressure resistance. A moderate organic matter content will make the inorganic diagenesis and organic hydrocarbon generation processes interact, and the development of organic matter mainly affects the development of dissolution pores. The comprehensive results show that A3 (silty laminated felsic shale) reservoirs underwent the pore evolution process of “two drops and two rises” of compaction, cementation and pore reduction, dissolution and pore increase, and organic matter cracking and pore increase, and they are the most favourable lithofacies of the shale reservoirs in the study area.

The Relationship Between The Role of Cadres and The Behavior of Mothers in Stunting Prevention at Posyandu Toddler Mancar Village Jombang Regency

Stunting is short or very short of its age caused by inadequate chronic nutritional intake. The low role of cadres is one of the causes that affects maternal behavior in the prevention that will be carried out. This study aimed to determine the relationship between the role of cadres and maternal behavior in stunting prevention in the posyandu toddler. This research design used a cross sectional approach. The population was toddlers Posyandu in Mancar village, jombang regency with a sample size of 68 respondents and using a total sampling technique. Data collection tools in the form of questionnaires on the role of cadres and maternal behavior in stunting prevention, as well as tests data analysis using the spearman rank test significant rate 0.05. The results of the study showed that 51 respondents (75.0%) and mothers under five had less behavior in stunting prevention as many as 59 respondents (86.8%). The results of the Spearman Rank statistical test obtained a significant value of ρ < α (α = 0.05), which is 0.000 < 0.05, meaning that H1 is accepted, so there is a relationship between the role of cadres and maternal behavior in stunting prevention at the Toddler Posyandu in Mancar Village, Jombang Regency. The role of a good cadre can create the behavior of mothers under five in good prevention. The role of health workers or posyandu cadres is very important in realizing good stunting prevention knowledge and behavior so that stunting events can be reduced.

Re-examination and analysis of test data on consolidation of soft soils exhibiting creep with different thicknesses

Re-examination and analysis of test data on consolidation of soft soils exhibiting creep with different thicknesses

Evaluating the Quality of Multiple-Choice Test Questions in the Postlicensure Environment.

Multiple-choice test questions are among the main measures of knowledge used by educators in the postlicensure environment; however, these tests are often constructed in the absence of guidelines or the means to evaluate examination quality after administration. Previously, guidance was provided on constructing quality test items. Here we present instruction for professional development specialists to use postadministration test data for an item analysis, providing insight on test flaws and opportunities for iterative examination improvement. The topics of item difficulty, index of discrimination, and distractor analysis are covered for independent analysis, and topics such as reliability are addressed for those who have access to a formal program. Three levels of strategies are described: using a learning management system for item analysis, using free open-source software, and using a minimal standards method of evaluating test items. [J Contin Educ Nurs. 2024;55(10):487-492.].

Pengaruh Media Sosial, Celebrity Endorser, dan Online Customer Review Terhadap Keputusan Pemblian Produk Kosmetik Pinkflash di Kabupaten Dompu

This research aims to test and analyze the influence of Social Media, Celebrity Endorser, and Online Customer Reviews on the Purchasing Decisions of Pinkflash Cosmetic Products in Dompu Regency. The population in this study were people in Dompu Regency who had purchased Pinkflash cosmetic products. The sample in this study consisted of 94 respondents. The sampling technique employed in this research was non-probability sampling using purposive sampling method. Data analysis in this study utilized multiple linear regression analysis, and all data were processed using SPSS Statistics 25. The results of testing and statistical data analysis indicated that the indicators in the study were valid, where in the classic assumption test, the data were normally distributed and there was no multicollinearity. The results of this study indicate that Social Media and Online Customer Reviews have a positive and significant influence on Purchasing Decisions, while Celebrity Endorser does not have a significant influence on Purchasing Decisions.

Enhance the Proportion of Fe3+ in NiFe‐Layered Double Hydroxides by utilizing Citric Acid to Improve the Efficiency and Durability of the Oxygen Evolution Reaction

NiFe‐layered double hydroxides (NiFe‐LDH) are a type of catalyst known for their exceptional catalytic performance during the oxygen evolution reaction (OER). In this study, citric acid was incorporated into the synthesis process of NiFe‐LDH, resulting in the NiFe‐LDH‐CA catalyst with superior OER performance. The catalytic efficacy is evaluated using linear sweep voltammetry (LSV), which demonstrates a significant reduction in the OER overpotential from 320 mV to 240 mV at a current density of 100 mA cm‐2. X‐ray photoelectron spectroscopy (XPS) and X‐ray absorption spectrum (XAS) indicate that the distribution of nickel valence states showed no significant difference between two samples, yet the NiFe‐LDH‐CA has a significantly higher proportion of Fe3+ ions in its iron content. In‐situ Raman spectroscopes reveal that Fe3+ broadens the redox potential of nickel and Pourbaix diagrams indicate that higher Fe3+ levels could facilitate the interaction with oxygen active sites. Based on the analysis of test data, we propose a hypothesis that the high proportion of Fe3+ in catalysts may accelerate the oxygen evolution process by modulating the redox potential of nickel and engaging with reactive oxygen species. This provides valuable insights into how to improve the reaction rate of nickel‐based catalysts.

The effect of MBCT mindfulness-based cognitive therapy techniques on increasing hope in cancer patients undergoing radiotherapy

The present study was conducted to investigate the effect of mindfulness techniques on increasing hope in cancer patients undergoing radiotherapy. For this purpose, 30 cancer patients in two control and experimental groups were available by sampling. This research method was semi-experimental, and in this regard, Freiberg (2001) and Snyder (1991) hope test questionnaires were used to collect data. The subjects of the experimental group participated in 8 sessions of 35 minutes of individual psychological therapy of mindfulness. The Freiberg test was performed in the experimental group to mentally prepare the patients for the research before the mindfulness sessions. Also, the subjects responded to Snyder's hope questionnaire as a pre-test and post-test. For data analysis, mean difference and analysis of covariance test (ANCOVA) were used in SPSS software version 22. The findings showed that mindfulness techniques have a positive effect on increasing hope in cancer patients. These findings can provide a new platform for optimal psychological interventions along with medical treatments, to help cancer patients undergoing treatment.

Optimization of Daily Warehouse Storage PT. XYZ with Shared Storage Method

PT XYZ is a company engaged in ship repair and maintenance services and port management services. The problems faced by PT XYZ in carrying out its business lines are related to the effective and efficient operational managerial activities of raw material warehousing. Problem solving steps are carried out by testing data processing and analysis using the shared storage method as a solution step related to the problem of warehousing layout and optimization. Problem solving with the shared storage method is a method of reconditioning the warehousing layout with the principle of First in First out or fast moving where the layout of goods is classified based on the order of the flow of goods movement according to the operational needs of PT XYZ activities. Based on the calculation results, if the company applies the proposed layout, there is an average distance savings of 4 m2. The layout of the placement of raw materials based on the proposed improvements has a more organized condition and facilitates the flow of goods movement as well as inputting the flow of goods in and out which can be more efficient if the goods are organized and inputted administratively, this also affects the quality of goods.

APLIKASI IRIGASI TETES BERTINGKAT PADA TANAMAN SEMUSIM MENDUKUNG KETAHANAN PANGAN KELUARGA DI LINGKUNGAN PERMUKIMAN KOTA MATARAM

The use of multistage drip irrigation needs to be supported by adequate planting media so that irrigation water can be provided optimally. The planting medium used is practically soil mixed with compost and put in a polybag. Therefore, by adding compost with a certain composition to the soil, it is hoped that a good planting medium will be obtained. This test aims to determine the effect of using cocopeat compost and cow compost as well as soil as a planting medium in polybags on providing multistage drip irrigation. Flow characteristics on the distribution of irrigation water, its absorption capacity, absorption rate and irrigation uniformity achieved. The test was carried out on a ½” PVC drip irrigation network with a 2 lt/hour emitter consisting of 4 network levels on land measuring 2m x 4m, water source from a tower with a height of around 2.5m and a tank capacity of 150 liters. Test data for analysis consists of irrigation volume and distribution, drip system flow rate, irrigation uniformity (Cu), infiltration rate and irrigation depth. The analysis results show that the average irrigation distribution on floors 1 to 4 is 3028ml, 2937ml, 2848.25ml and 2793 ml, with flow rates on floors 1 to 4 of 40ml/s, 39 ml/s, 38 ml/s and 37 ml/sec. The amount of drip discharge (qt) on the 1st floor was 6.7ml/sec, on the 2nd floor the amount was 6.5 ml/sec, on the third floor it was 6.3 ml/sec and 6.2ml/sec on the 4th floor. Irrigation uniformity was obtained by 96% is considered very good, with an average infiltration rate hc in V2 of 0.04 cm/s, in V3 the hc was 0.03cm/s and in V4 the hc was 0.027cm/s. So the irrigation infiltration rate when using cocopeat tends to decrease if the portion of the planting medium increases, so its use needs to be limited.

O03 THE SEVERITY OF COGNITIVE IMPAIRMENT IN PATIENTS WITH ESSENTIAL HYPERTENSION AND VARIOUS FORMS OF ATRIAL FIBRILLATION

Objective: comparative analysis of the severity of cognitive impairment in hypertensive patients with various forms of atrial fibrillation (AF). Materials and methods: During the observation period, 156 patients of both sexes with I–III degree of arterial hypertension (AH) were examined. The average age of patients was 63.8±9.07 years, duration of hypertension was 12.8±7.8 years. To analyze cognitive impairment in patients with AF 3 groups of patients were formed: Group I - hypertension and AF with a permanent form, n = 91, Group II - hypertension and AF with a paroxysmal form, n = 18, Group III - AH and persistent AF form, n=47. Cognitive functions were assessed using the Mini-Cog test, MOCA. The Hospital Anxiety and Depression Scale (HADS) was used to assess anxiety and depression levels. The results are presented as M±SD. Results: The analysis of psychological testing data showed that cognitive impairment is more pronounced in the group of patients with a permanent form of AF. Thus, the total score on the Mini-Cog test in group I of patients was 3.73±1.3 points, while in group II it was 4.0±1.11 points (p<0.05). According to MoCa scale, the total score was superior in group II patients, amounting to 19.7±6.14, while in group I this figure was 19.2±6.08 (p<0.05), and in group III is 18.8±7.22, which indicates a greater severity of cognitive impairment in patients with hypertension and AF with a permanent form and a persistent form. Cognitive functions such as memory are significantly better in group II compared to group I: 7.88±1.99 points versus 6.9±1.78 points, respectively (p>0.05), and decision-making function is significantly better in group III group. It should be noted that according to the HADS scale, the severity of anxiety and depression is higher in group III. Conclusion: A comparative analysis of psychological testing data taking into account the form of AF showed that cognitive impairment is more pronounced in patients with a permanent form of AF.

Self-efficacy of mathematics education students in solving geometry problems

The problem and the aim of the study. Teachers as key holders of student success must have selfefficacy so that the learning process goes well and gets optimal results. In other words, teachers who have good self-efficacy will be able to foster students' self-efficacy in working on math problems. Researchers propose to analyze the influence of mathematics education students' self-efficiency in solving geometric problems. Participants and Research methods. This research uses a combination of quantitative and qualitative methods, which aims to analyze the self-efficacy of mathematics education students in solving geometry problems. This research was conducted on 43 students STKIP YPUP Makassar, which consisted of 7 boys students and 36 girl students. Two instruments were used in this study, namely the Self-Efficacy Questionnaire (SEQ) and The Geometry Problem Solving Test (GPST). Forty-three students in the research sample. were asked to complete SEQ and GPST-1 with a time duration of 30 minutes and 80 minutes respectively, the implementation of which was directly supervised by the researcher and assisted by lecturers who taught geometry courses. The results were grouped into low, medium and high mathematics ability groups. Then one student from each group was selected to be the research subject. Results. Data analysis for the influence test obtained: (i) F count 56,863 with a significance of 0.001 < 0.05, meaning that students' self-efficacy and Geometry Values simultaneously have a significant influence on the geometry problem solving, and (ii) For SEQ, t count was 3,480. with a significance of 0.001 < 0.05, meaning that the self-efficacy partially has a significant influence on the geometry problem solving, while for GV, the t count is 8.775 with a significance of 0.001 < 0.05, meaning that Geometry Values partially has a significant influence on the geometry problem solving. LS can complete the understanding of aspects of the problem, MS is able to solve problems by understanding the problem and formulating a plan, and HS is able to solve problems on all indicators. Conclusion. Quantitatif: Self-efficacy and geometry values has a significant influence on students' geometry problem-solving. Qualitative: Each subject in each group has a different geometry problem solving process at each stage of problem solving.

Correlation of Parenting Styles and Oral Health Behavior of Children with Down Syndrome in Banjarmasin

Background: Parental, Down syndrome is a trisomy chromosomal genetic disorder that leads newborn child having more than one chromosome so that could interfere the normal growth of the body due to an excess of protein level. Children with Down syndrome have different oral health problems compared to the general population. They need assistance to maintain their oral health because of mental and physical deficiencies as well as limitations in optimally cleaning their teeth. Objective: To analyze the relationship between parenting styles and oral health behavior of children with Down syndrome in Banjarmasin Special Needs School, Indonesia. Materials and Method: This is an observational analytic study with cross-sectional approach. Sample was taken using simple random sampling technique and a cross-sectional sample formula obtained for 32 respondents. The instrument used a parenting style questionnaire and a behavioral modification questionnaire for children's oral health. Results: Democratic (87.5%) compared switch order parenting styles. It was found that there were more children with Down syndrome in the category of moderate behavior (59%) than children with good behavior (38%) and poor behavior (3%). The results of the Somers'd test data analysis obtained a significance value of 0.034 (p<0.05) and the correlation value obtained was 0.571, which means that the correlation strength is moderate with a positive correlation direction (unidirectional). Conclusion: The more democratic the parents use as parenting style the better the oral health behavior of children with Down syndrome will be.

Outdoor Learning Methods on the Ability to Write Free Poetry in Hankuk University of Foreign Studies Malay-Indonesian Study Program Students South Korea

This study aims to determine the effect of using outdoor learning methods on the ability to write free poetry in Audio Visual A1 and A2 classes of Malay-Indonesian. The method used is an experimental method of the Quasi Experimental type using two classes, namely the experimental class of 37 students which given treatment in the form of outdoor learning methods and a control class of 35 students which was not given treatment as a comparison class. The data collection technique used a poetry writing essay test and a questionnaire to find out students' responses to the outdoor learning method. Based on the results of hypothesis testing data analysis using the t test at a significant level of 0.05, a T count of 2.592 and a T table of 1.997 are obtained. Because T count is greater than T table, namely 2.592 > 1.997. It can be concluded that accept H1, reject H0, thus it can be said that there is an influence on the use of outdoor learning methods. Based on the results of hypothesis testing data analysis using the t test at a significant level of 0.05, a T count of 2.592 and a T table of 1.997 are obtained. Because T count is greater than T table, namely 2.592 > 1.997. It can be concluded that accept H1, reject H0, thus it can be said that there is an influence on the use of outdoor learning methods.the ability to write free poetry for students of the Malay-Indonesian study program Hankuk University of Foreign Studies South Korea.

Lessons learnt from assessing and improving accuracy and positive predictive value of the national HIV testing algorithm in Nigeria.

HIV testing remains an entry point into HIV care and treatment services. In 2007, Nigeria adopted and implemented a two-test rapid HIV testing algorithm of three HIV rapid test kits, following the sequence: Alere Determine (first test), UnigoldTM (second test), and STAT-PAK® as the tie-breaker. Sub-analysis of the 2018 Nigeria HIV/AIDS Indicator and Impact Survey data showed significant discordance between the first and second tests, necessitating an evaluation of the algorithm. This manuscript highlights lessons learnt from that evaluation. A two-phased evaluation method was employed, including abstraction and analysis of retrospective HIV testing data from January 2017 to December 2019 from 24 selected sites supported by the United States President's Emergency Plan for AIDS Relief programme. A prospective evaluation of HIV testing was done among 2895 consecutively enrolled and consented adults, aged 15-64 years, accessing HIV testing services from three selected sites per state across the six geopolitical zones of Nigeria between July 2020 and September 2020. The prospective evaluation was performed both in the field and at the National Reference Laboratory under controlled laboratory conditions. Stakeholder engagements, strategic selection and training of study personnel, and integrated supportive supervision were employed to assure the quality of evaluation procedures and outcomes. The algorithm showed higher sensitivity and specificity in the National Reference Laboratory compared with the field. The approaches to quality assurance were integral to the high-quality study outcomes. We recommend comparison of testing algorithms under evaluation against a gold standard. This study provides context-specific considerations in using World Health Organization recommendations to evaluate the Nigerian national HIV rapid testing algorithm.

Pengembangan Perangkat Pembelajaran Matematika Berbasis Open Ended Untuk Meningkatkan Kemampuan Berpikir Kreatif Siswa Kelas VIII Pada Materi SPLDV

This research is motivated by the low creative thinking skills of students and there are still many teachers who have difficulty in developing learning tools that are in accordance with the demands of the 2013 curriculum learning. The purpose of this research is to develop open ended based mathematics learning tools to improve the creative thinking skills of grade VIII students on SPLDV material that is practical, valid and effective. The device development model chosen in this research is the Thiagarajan, Semmel & Semmel (4-D) model. This model consists of four stages, namely defining, designing, developing and disseminating. The learning tools developed in this research are in the form of lesson plans, student activity sheets and creative thinking skills tests. The research instruments used are in the form of device validation sheets, learning implementation observation sheets, student activity observation sheets and student response questionnaires. From the results of the validation test data analysis, the average percentage score for: (1) lesson plas which is 4.60 with a valid category, (2) Student Activity Sheet which is 4.57 with a valid category, (3) Creative Thinking Ability Test which is 4.74 with a valid category. The observation results of the implementation of learning devices showed an average result of 83.63% in the good category. The overall average of student activity is 83% which is classified as an active category. The results of the creative thinking ability test showed that the percentage of classical completeness was 80%. And students' response to the developed learning tools is positive. Thus, the open ended based learning tools developed are valid, practical and effective to improve the creative thinking ability of students in grade VIII.

Comparative Analyses of Bioequivalence Assessment Methods for In Vitro Permeation Test Data.

For topical, dermatological drug products, an in vitro option to determine bioequivalence (BE) between test and reference products is recommended. In particular, in vitro permeation test (IVPT) data analysis uses a reference-scaled approach for two primary endpoints, cumulative penetration amount (AMT) and maximum flux (Jmax), which takes the within donor variability into consideration. In 2022, the Food and Drug Administration (FDA) published a draft IVPT guidance that includes statistical analysis methods for both balanced and unbalanced cases of IVPT study data. This work presents a comprehensive evaluation of various methodologies used to estimate critical parameters essential in assessing BE. Specifically, we investigate the performance of the FDA draft IVPT guidance approach alongside alternative empirical and model-based methods utilizing mixed-effects models. Our analyses include both simulated scenarios and real-world studies. In simulated scenarios, empirical formulas consistently demonstrate robustness in approximating the true model, particularly in effectively addressing treatment-donor interactions. Conversely, the effectiveness of model-based approaches heavily relies on precise model selection, which significantly influences their results. The research emphasizes the importance of accurate model selection in model-based BE assessment methodologies. It sheds light on the advantages of empirical formulas, highlighting their reliability compared to model-based approaches and offers valuable implications for BE assessments. Our findings underscore the significance of robust methodologies and provide essential insights to advance their understanding and application in the assessment of BE, employed in IVPT data analysis.

Review about the Permutation Approach in Hypothesis Testing

Today, permutation tests represent a powerful and increasingly widespread tool of statistical inference for hypothesis-testing problems. To the best of our knowledge, a review of the application of permutation tests for complex data in practical data analysis for hypothesis testing is missing. In particular, it is essential to review the application of permutation tests in two-sample or multi-sample problems and in regression analysis. The aim of this paper is to consider the main scientific contributions on the subject of permutation methods for hypothesis testing in the mentioned fields. Notes on their use to address the problem of missing data and, in particular, right-censored data, will also be included. This review also tries to highlight the limits and advantages of the works cited with a critical eye and also to provide practical indications to researchers and practitioners who need to identify flexible and distribution-free solutions for the most disparate hypothesis-testing problems.

Improving cardiovascular risk stratification through multivariate time-series analysis of cardiopulmonary exercise test data

Nowadays cardiorespiratory fitness (CRF) is assessed using summary indexes of cardiopulmonary exercise tests (CPETs). Yet, raw time-series CPET recordings may hold additional information with clinical relevance. Therefore, we investigated whether analysis of raw CPET data using dynamic time warping combined with k-medoids could identify distinct CRF phenogroups and improve cardiovascular (CV) risk stratification. CPET recordings from 1,399 participants (mean age, 56.4 years; 37.7% women) were separated into 5 groups with distinct patterns. Cluster 5 was associated with the worst CV profile with higher use of antihypertensive medication and a history of CV disease, while cluster 1 represented the most favorable CV profile. Clusters 4 (hazard ratio: 1.30; p= 0.033) and 5 (hazard ratio: 1.36; p= 0.0088) had a significantly higher risk of incident adverse events compared to clusters 1 and 2. The model evaluation in the external validation cohort revealed similar patterns. Therefore, an integrative CRF profiling might facilitate CV risk stratification and management.

Pengaruh Model Pembelajaran P2RE dalam Meningkatkan Keterampilan Menulis Teks Berita Siswa Kelas XI SMA Rahmat Islamiyah Medan

The research that has been carried out is entitled "The Influence of the P2RE Learning Model in Improving the Ability to Write News Texts for class This research aims to improve the ability to write news texts through the P2RE (Preparation, Organizing, Reflective and Evaluation) learning model for class XI students at SMA Rahmat Islamiyah Medan. This research methodology is quantitative by producing a pretest and posttest. Research procedures include planning, implementing actions, observing and reflecting. Data collection techniques through non-tests (tests on student learning outcomes, observation, documentation and questionnaires). Data analysis includes data analysis of validity tests, reliability tests, normality tests, homogeneity tests, hypothesis tests. The results of the research revealed that the results of student learning observations at the pretest stage were 9.9%. At the stage of working on pretest questions individually the average score for students at XI SMA Rahmat Islamiyah Medan was only 76.2, while at the posttest stage student learning outcomes were 14.6% and at the posttest question stage as a group the students' average score was 89.33. So the conclusion is that the average student score increased after being given the P2RE learning model by 13,11.