Qualitative Information Research Articles

Experimental evaluation of wind turbine wake turbulence impacts on a general aviation aircraft

Abstract. Continued development of wind farms near populated areas has led to rising concerns about the potential risk posed to general aviation aircraft when flying through wind turbine wakes. There is an absence of experimental flight test data available with which to assess this potential risk. This paper presents the results of an instrumented flight experiment in which a general aviation aircraft was flown through the wake of a utility-scale wind turbine at an operating wind farm. Wake passes were flown at different downwind distances from the turbine, and data were collected on the orientation disturbances, altitude and speed deviations, and acceleration loads experienced by the aircraft. Videos and pilot statements were also collected, providing qualitative information about the disturbances encountered in the wake. Results show that flight disturbances were small in all cases, with no difference observed between flight data inside and outside the wake at distances greater than six rotor diameters from the turbine. At distances closer than six rotor diameters, small load factor and orientation disturbances were noted but were commensurate with those experienced in light or moderate atmospheric turbulence. Overall, the loads and disturbances experienced were far smaller than those that would risk causing loss of control or structural damage.

Studying the process of metals and non-metals transfer in a low-temperature gas flow over sulfide tailings materials

ABSTRACT A large number of publications have been devoted to the study of aerosol atmospheric transport, but the low-temperature transfer of metals and metalloids as a part of gas flow remains poorly understood. The present work is devoted to the study of gas stream composition using an approach based on the collection of nascent condensate upon cooling of the air flow formed over the surface of contaminated sites. A special laboratory unit was designed to collect the condensate followed by the study of its composition using atomic emission and mass spectrometry. The main novelty of this work consists of the application of the single-particle ICP‒MS technique to obtain qualitative information concerning the state of the elements in the condensates. Gold and silver are most likely present in the samples as nanoparticles; arsenic, selenium, tin and lead are present both as nanoparticles and as soluble forms; and barium and mercury are present only in soluble forms. The condensed phase contains As, Hg, Au, Ag, Pb and Sn at the ppb level, while the main elements of the tailings material (Fe, Ba, Cu, Zn and others) are present at the ppm level, which exceeds the background concentration.

Использование нечеткого метода распознавания образов для мониторинга запыленных помещений

ABSTRACT This article discusses a decision support system (DSS) based on fuzzy methods used to identify and process gas dynamic images obtained during monitoring and control of underground coal mine atmosphere processes. DSS supports ventilation operator solutions in complex and unforeseen gas dynamic situations. The work will analyze the quantitative and qualitative information used by the ventilation operator to make decisions. Based on these data, an analysis of the effectiveness of using fuzzy models and methods for interpreting and processing gas dynamic images will be carried out. Fuzzy models and methods of interpretation and processing of gas dynamic images will be proposed. In the future, based on these models and methods, the operator's decision support software will be developed.

Using drawing to study student research experiences

The communities of practice (COP) framework describes learning as a process of navigating one’s position of membership within a community of professionals pursuing a set of common goals using established practices. As students navigate their membership within a community like a physics research group, they develop a mental model of the community of practice and use this model to guide their future career decisions. Drawing has been shown to illustrate students’ perspectives and experiences, offering important benefits as a source of qualitative information. In this proof-of-concept paper, we explore how a drawing survey can be used to identify elements of a student’s COP model in the context of a research group. We describe the development and validation of this drawing survey using the response process evaluation method. This method establishes the degree to which students interpret survey prompts as intended. We then review a sample of seven student drawings made in response to the survey to investigate the degree to which the survey generates sufficient data to examine a student’s COP model. Finally, we demonstrate a use case examining N=23 drawings that allow us to identify patterns and possible differences in responses from different student groups (physics majors and biology majors). We then reflect on this use of a drawing survey by highlighting important aspects of the process and discussing limitations. Published by the American Physical Society 2024

A database of shake-table tests conducted on unreinforced masonry buildings

Experimental results obtained from shake-table tests on complete unreinforced masonry buildings (URM) play a crucial role in enhancing modeling techniques and reducing uncertainties in seismic assessments for this type of building. This paper presents an open-access database comprising 69 shake-table tests on URM buildings with a scale equal to or larger than 1:4 that have been documented in the literature. The database summarizes important geometric parameters, structural characteristics, and experimental results, including maximum shake-table accelerations, story drifts, and evolution of dynamic properties, as well as qualitative information such as observed failure modes and damage progression throughout the experiments. This database is meant to serve the research community as a resource for planning future experimental campaigns, benchmarking numerical models, validating analysis methods, and improving predictive capabilities. As an example application, we generate vulnerability functions (fragility curves) from the experimental data. Our findings reveal that buildings tested in experiments are less vulnerable compared to real buildings, particularly when severe damage is observed and when the ground motion intensity is low to moderate. The ultimate objective is to facilitate the exchange of experimental data and boost collaborative approaches in the seismic assessment of URM buildings.

The Autism Program Environment Rating Scale in Swedish Primary School: Cultural Adaptation and Content Validation.

There is a recognized need to improve inclusive learning environments for autistic children in primary school settings in Sweden. This study aimed to translate, cross-culturally adapt, and assess the content validity of the Swedish primary school version of the Autism Program Environment Scale (APERS), originally developed to evaluate autism program quality in educational settings in the United States. Following the translation into Swedish and the first cultural adaptation of the APERS, a content panel group of 14 professionals rated its content validity. Four of the content panel members also participated in individual interviews that provided a qualitative evaluation of the instrument's content validity. Finally, the authors piloted the APERS in 10 Swedish primary school classrooms to assess its feasibility. The ratings and qualitative information from the content panel members indicated a substantial need for the Swedish APERS in primary school, resulting in the culturally adapted APERS-Primary-Sweden (SE). The instrument demonstrated a high level of cross-cultural content validity for assessing the quality of the learning environment for students with autism in Swedish primary school settings. The pilot testing of the instrument resulted in further cultural adaptations. In conclusion,APERS-Primary-SE is a comprehensive scale that can be used to assess the quality of primary school learning environments for children with autism in Sweden. Further research is needed to evaluate the adapted instrument's effectiveness in improving the learning environment in Swedish primary school classrooms.

Task-sharing with community health workers to treat hypertension: a scoping review.

Many studies have implemented and evaluated task-sharing interventions with community health workers (CHWs) to manage hypertension. To identify gaps in research, we conducted a scoping review. We searched original articles published in PubMed and EMBASE between 2010 and 2022 and found 122 articles meeting our inclusion criteria. Only seven articles were from low-income countries (LICs), most of which were qualitative studies or mixed methods studies. In the identified 122 articles, CHWs often performed health education (61.3%) and measured blood pressure (60.4%). Whereas CHWs carried out pharmacological treatment in only three studies. Participant homes (75.0%) were the most common setting for receiving interventions. Our study identified specific needs for future research, specifically, studies in LICs that are experimental in design and that collect relevant qualitative information, and studies in which CHWs do advanced task. In addition, publications of CHW studies should provide a more comprehensive list of intervention features.

FRUGIVORY CAMTRAP: A dataset of plant-animal interactions recorded with camera traps.

Ecological interactions are a key component of biodiversity, essential for understanding ecosystem services and functioning. Recording and quantifying ecological interactions is challenging, frequently requiring complex logistics and substantial effort in the field. Camera traps are routinely used in ecology for various applications, and have proven to be an excellent method for passive and non-invasive sampling of plant-animal interactions. We implemented a standardized camera trap protocol to document vertebrate frugivores-fleshy fruitedplants interactions in Doñana National Park, SW Spain, with the central objective of inventorying the diversity of plant-animal ecological interactions providing seed dispersal services. From 2018 to 2023 we recorded pairwise interactions from which we obtained qualitative (presence-absence) and quantitative (frequency of visits) information. Each record in the dataset contains information of a visit by an individual animal to an individual plant, resulting in any form of fleshy-fruit use and provides information on visitation phenology, visit length, and feeding behavior. The dataset presented here includes 10,659 frugivory interaction events for 59 vertebrate species (46 birds, 13 mammals) recorded on 339 plant individuals from 13 different plant species which dominate the fleshy-fruited plant assemblage in the Doñana National Park. The most recorded animal species consuming fruits and playing a legitimate seed dispersal role was Curruca melanocephala (1678 records) among birds and Vulpes vulpes among mammals (751 records). Cervus elaphus, a fruit consumer with a marginal role as legitimate seed disperser, was the most recorded mammal species (1508 records). Avian frugivores, particularly those from the Sylviidae and Turdidae families, are widespread in the region and play a crucial role in maintaining the dispersal service for the fleshy-fruited plant populations in the area. The dataset offers highly versatile quantitative information that can be used to investigate frugivory from the highest resolution scale, the interaction event between pairs of individuals. In addition, other information that can be extracted includes the timing of interactions of animals and plants (their phenological couplings), activity periods of the animals, behavior during the events and preferences for individual plants within populations. There are no copyright restrictions on the data. When using the data from this data paper in publications, we kindly request that you cite the paper accordingly. Additionally, we encourage researchers and educators to inform us about how they are using this data, as we value feedback and would like to be aware of its various applications.

Probing Defects in Covalent Organic Frameworks.

Defects in covalent organic frameworks (COFs) play a pivotal role in determining their properties and performance, significantly influencing interactions with adsorbates, guest molecules, and substrates as well as affecting charge carrier dynamics and light absorption characteristics. The present review focuses on the diverse array of techniques employed for characterizing and quantifying defects in COFs, addressing a critical need in the field of materials science. As will be discussed in this review, there are basically two types of defects referring either to missing organic moieties leaving free binding groups in the material or structural imperfections resulting in lower crystallinity, grain boundary defects, and incomplete stacking. The review summarizes an in-depth analysis of state-of-the-art characterization techniques, elucidating their specific strengths and limitations for each defect type. Key techniques examined in this review include powder X-ray diffraction (PXRD), infrared spectroscopy (IR), thermogravimetric analysis (TGA), nuclear magnetic resonance (NMR), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), scanning transmission electron microscopy (STEM), scanning tunneling microscope (STM), high resolution transmission electron microcoe (HRTEM), gas adsorption, acid-base titration, advanced electron microscopy methods, and computational calculations. We critically assess the capability of each technique to provide qualitative and quantitative information about COF defects, offering insights into their complementary nature and potential for synergistic use. The last section summarizes the main concepts of the review and provides perspectives for future development to overcome the existing challenges.

Influence of Available Instructional Resources on the Acquisition of Language Skills among Early-Year Learners in Kiambaa Sub-County, Kiambu County, Kenya

Language entails the ability to communicate with other people with significant variations between understanding of speech and language. Although language acquisition largely depends on the learner's ability, the access and availability of instructional resources play a pivotal role in language acquisition among children in Early Childhood Education Centres. The main aim of this study was to assess the influence of available instructional resources on the acquisition of language skills among early-year learners, to determine the impact of teachers' competence on the use of instructional resources on the acquisition of language skills among early-year learners and to determine the influence of challenges in use of instructional resources on the acquisition of language skills among early year learners in Kiambaa sub-county, Kiambu County. The study was based on the constructivists and overlapping spheres of influence theory. The study adopted a descriptive research design. The target population was 98 head teachers and 210 ECD teachers who were considered for the study. Purposive sampling was used to obtain 12 head teachers, and simple random sampling was used to obtain 44 teachers. Statistical Package for Social Sciences was used to analyse the quantitative data, while content analysis was used to analyse the qualitative information gathered using open-ended questions, where findings were reported in a narrative form under each theme. Descriptive analysis was done through frequencies and percentages. A multiple Linear Regression model was used to model the relationship between the independent variable and the response variable (Acquisition of language skills). The study concludes that the availability of Instructional resources has a significant positive effect on the acquisition of language skills as denoted by the p-value (P <0.05). The study recommends that stakeholders, including head teachers, teachers, and parents, should understand the importance of having sufficient instructional resources. Efforts should be made to improve access and availability based on recommendations from ECD teachers, thereby fostering language acquisition among early learners.

Evaluation of Saccadic Component Measure on Smooth Pursuit Tests.

Despite the advancement of eye-tracking technology for smooth pursuit (SP) eye movement evaluation, qualitative observation offers much information that is not captured by computers; hence, both objective and qualitative information should be utilized to evaluate SP. This study examined the consistency among our clinicians when evaluating SP using normal (N), grossly normal (GN), mildly abnormal (MA), and abnormal (AB) as classifications. We then evaluated the effect of combining GN and MA into a single subclinical (SUBC) category. We also evaluated the computerized percent saccade (PS) metric by determining its sensitivity and specificity in classifying SP. Retrospective horizontal and vertical SP test videos and numerical data for 70 participants were obtained from the Neuro Kinetics Neuro-Otologic Test Center and de-identified. From this, eye-tracking videos, time plots of eye-tracking positional data, and tables of SP eye-tracking performance data were generated for 0.1, 0.3, and 0.5 Hz in both horizontal and vertical planes, totaling 6 tests per subject. Three clinicians rated each subject's SP performance as N, GN, MA, or AB for a total of 6 ratings (3 frequencies, horizontal and vertical). This process was repeated using N, SUBC, and AB as rating categories. Clinicians also provided an overall SP rating for each plane as follows: AB if the results were abnormal for 2 or more frequencies tested. Alternatively, if fewer than 2 frequencies presented with a rating of AB, then an overall rating of MA, GN, or N was determined at the respective clinician's discretion. When the 3 clinicians were tasked with classifying SP videos using 4 clinical categories, fair overall agreement was demonstrated. However, when MA and GN categories were combined into an SUBC category, the overall agreement for the 3 clinicians improved slightly for both horizontal SP (HSP) and vertical SP (VSP). This pattern of agreement did not differ considerably when comparing HSP versus VSP, and good consistency and reliability was observed across clinicians. Again, inter-rater consistency was smaller for VSP versus HSP despite the reduction in clinical categories. Cut-off values were generated for the PS metric and demonstrated good specificity and sensitivity when they were exceeded for 2 or more frequencies in a particular plane when evaluating a subject's SP test.

Perempuan Sumber Sial Dalam Hadis Shahih Bukhari Nomor 5903 (Kajian Tahlili)

This research discusses the hadith in Sahih Bukhari that narrates that one of the places of misfortune is women. Textually, this hadith is controversial as it is perceived to contain misogynistic suggestions conveyed by the Prophet Muhammad (peace be upon him). The purpose of this research is to comprehensively understand the process of transmission and the scholars' interpretation of this hadith. Additionally, this research also attempts to interpret the hadith through the contemporary Fiqh al-Hadith methodology proposed by contemporary scholars. The researcher employs a qualitative inductive method, obtaining data and information by collecting classical Islamic texts, including those that specifically explain the related hadith as well as other relevant books. These include books on hadith terminology, hadith commentaries, hadith text, and hadith narrator studies, among others. This research finds that the Sahih Bukhari hadith number 5093 is of hasan quality. This hadith also has many corroborating and supporting narrations of better grades. Meanwhile, the meaning of misfortune contained in it, according to the majority of scholars, is attributed to women temporarily and not permanently. Misfortune is associated with women when they have bad character, infertility, and other non-permanent negative traits. In the mubadalah (reciprocal) method, misfortune is not only attributed to women but also to men, as men can also experience infertility, bad character, and other non-permanent negative traits.

Implementation of a common data model in Health Data Research Network Canada: Lessons learned

BackgroundThe Observational Medical Outcomes Partnership (OMOP) Common Data Model (CDM) is a standardized structure for observational data that enables collaborative health research. Health Data Research Network (HDRN Canada) is conducting a pilot study to implement this standard at partner data linkage centers. ObjectiveOur objective is to describe the process used to implement the OMOP CDM, methodological and technical challenges, and the approach to evaluate CDM implementation at multiple sites. ApproachCDM working group members include technical staff from data linkage centers in four provinces and a national data coordinating center, HDRN Canada operational and executive leads, and OMOP CDM consultants. The evaluation aims to collect quantitative and qualitative information on Extract, Transform, and Load (ETL) processes, performance of the CDM in a multi-site observational case study, and data quality. ResultsInitial steps have included collaborative learning about the CDM structure, importing open-source tools and licensed coding standards (i.e., Systematized Nomenclature of Medicine-Clinical Terms [SNOMED-CT], RxNorm) at data linkage centres, and exploring the technical requirements for developing ETL processes and hosting OMOP data. Creation of select OMOP tables has been accompanied by discussions about models for mapping clinical and prescription drug coding standards. A scoping review of evaluation strategies is underway. Conclusions and ImplicationsThe benefits of standardizing health data for multi-site research and supporting the production of findable, accessible, interoperable and reusable (FAIR) national data underscores the importance of HDRN Canada embarking on this OMOP CDM implementation project. The lessons learned will benefit other multi-site data standardization initiatives.

Data linkage of routinely collected qualitative health data: Using qualitative Patient Reported Experience Measures to understand the impact of digital hospitals on patients

ObjectiveData linkage and secondary use of routinely collected quantitative health data is ubiquitous. In recent years, the volume and breadth of routinely collected qualitative health data has grown. These data sources provide rich narrative information that could enable a broader understanding of healthcare challenges at scale, however linkage and secondary use of this qualitative health information is not common. This study explores the potential of linkage and secondary use of qualitative patient reported experience measure (PREM) data to understand the impact of digital hospitals on patients. ApproachIn Queensland, Australia, PREM surveys are distributed to most public hospital patient. Patient responses will be linked to the hospital and ward attended; qualitative comments will be extracted from two large hospitals: a digital hospital and non-digital hospital. Comments will be compared between the hospitals, focusing on factors which relate to experience of a digital hospital, either directly (e.g. computerised workstations), or indirectly (e.g. communication). Results & ConclusionsCurrently under ethics review – one challenge identified is that deidentification of free-text qualitative data at this scale is not feasible. Ethics committees may not have experience with this type of study and may require education on using qualitative health data at scale. ImplicationsLinkage and secondary use of routinely collected qualitative PREMs data has the potential to reduce participant burden in research, by utilising existing data sources to answer research questions. It can also broaden the scope of research by utilising data collected across multiple hospitals or jurisdictions, without significantly increasing the resources required.

Experiences of individuals with serious mental disorders in regular employment through the Individual Placement and Support model.

This study shows the perspective, meaning and satisfaction perceived by people with Serious Mental Disorders during their experiences in regular employment. A mixed qualitative-quantitative methodology was used, applying semi-structured interview as qualitative information collection tool and the Indiana Job Satisfaction Scale as quantitative tool. The study period was from January 2021 to December 2022. A purposive sampling was performed with a sample of 24 people with Serious Mental Disorders who had obtained a job through an Individual Placement and Support (IPS) program during the study period. Semi-structured interview and the Indiana Job Satisfaction Scale were applied to this Serious Mental Disorder workers' sample. The Indiana Job Satisfaction Scale was also applied to a group of 24 workers without mental disorders in the same working conditions who served as control group. The results of the analyses of the Serious Mental Disorder workers' narratives show that perception of work experience is conditioned by individual, environmental and social predictors, as well as external factors as determining variables. Quantitative results obtained by the Indiana Job Satisfaction Scale reveal levels of job satisfaction resembling those of the rest of workers without Serious Mental Disorder. These findings reinforce the significance of employment in the recovery process for individuals with Serious Mental Disorders and emphasize the importance of understanding the subjective meaning individuals attribute to their work experiences.

Cultivating trans-disciplinarity: transcending and transgressing research methods

Transdisciplinarity is creative human agency including cognitive, intellectual and behavioural activities of individuals and groups. These activities define and are mutually defined by beliefs and ideas, knowledge and know-how, language and meanings, norms and rules, and opinions and values. The cultivation of transdisciplinary projects should embrace these cultural, social and psychological predispositions because they are core constituents of a trans-anthropo-logic. This requires transcending common research methods used in scientific studies and using scaffolding that facilitates agency, and positioning individuals and groups. However, scientists are rarely trained to pilot projects involving multiple stakeholders with different positions. This article explains why trained facilitators are needed to pilot transdisciplinary projects. They can cultivate transcendence and transgression – both analysed by the late Julie Thompson Klein – beyond the scope and purpose of common research methods. In essence, transdisciplinary practices respect different ontologies and epistemologies while incorporating ethical principles and moral values. The cultivation of transdisciplinary projects should accommodate and reduce asymmetries of power between politicians, public administrators, property owners, researchers and laypeople that are shaped by extant historical and societal variables in specific situations. Transdisciplinary projects should also apply multiple sources of quantitative data and qualitative information that represent the complexity, diversity and perhaps incommensurability of intentions, meanings, perceptions and values about specific subjects or situations. This is being achieved by innovative projects that should become beacons for change.

Evaluating Nondestructive Quantification of Composition Gradients in Metal-Organic Frameworks by MeV Ion Microbeam Analysis.

We evaluate a method to quantify composition depth gradients in intact metal-organic framework (MOF) single crystals and thereby derive diffusion coefficients of postsynthetically incorporated active sites by nondestructive ion-beam microanalysis. Zr-based UiO-67-bpy (bpy = 2,2'-bipyridine-5,5'-dicarboxylic acid) MOFs were synthesized on Si substrates and then metalated postsynthetically with NiCl2 for 2-48 h, resulting in different Ni depth distributions. Simultaneous micro-Rutherford backscattering spectrometry (μ-RBS) and micro-particle induced X-ray emission (μ-PIXE) analysis were used for the spatially resolved chemical analysis of the MOF single crystals. Qualitative assessment of the μ-RBS spectra indicated the presence of elemental depth gradients and hinted at the governing process of the postsynthetic Ni incorporation, in the present case, molecular diffusion. Quantitative evaluation of the resulting composition depth profiles directly provided the diffusion length and, thereby, the diffusion coefficient of the system. Virtual gradients caused by overhanging tips/edges of the truncated octahedral crystal shape are considered. Furthermore, in the case of insufficient probing depth for μ-RBS, μ-PIXE was still capable of providing qualitative information. In the present system the diffusion coefficient for NiCl2 is found to be (1.72 ± 0.18) × 10-16 m2s-1. The long-term stability of the synthesized and postsynthetically modified MOFs is proved by repeated measurements.

An Insight into México Art's Symbolic Value through their Economic Behavior: One Case of Valuation Comparison Between the Emergent Physical and Digital Abstract Art Market, 2021

This work analyzes the phenomenon of the symbolic value in digital art over the circuit NFT in México, considering the economic behavior as a factor to identify their dynamics and characteristics, but at the same time, to recognize their influence and capacity of change from the interaction of the hybrid spaces that have this new kind of artist and pieces of work; to rethink from there, the traditional considerations for the symbolic value to looking at how to be modified in their relation with the circuit of NFT art. This makes it possible to propose an experimental aesthetic economic methodology to compare their different behaviors positions and structures, this time, in the particular case of two artists, who have different stays of symbolic value and activities in the traditional formats and digital art. Access and review of the hybrid quantitative (financial) and qualitative (trajectories and aesthetic) information, allowed the identification of meeting points, disagreement zones, and new spaces of analysis of these phenomena, to bring to the broad new considerations in the symbolic value, that is to say, new variables to consider in the dynamic values in the different kind of productions of our times.

Teachers’ Motivation in Enhancing Sustainable Management of School Projects: Case of Secondary Schools in Sumbawanga Municipality, Tanzania

The study on Teachers’ Motivation in Enhancing Sustainable Management of School Projects: Case of Secondary Schools in Sumbawanga Mincipality, Tanzania. The study aimed at examining the ways of teacher’s motivation on the sustainable management of the school projects in secondary schools. Specifically the study was conducted around by two specific objectives which were; firstly was to identify kinds of school projects implemented from 2017 up 2023 in Sumbawanga public secondary schools, and second was to propose ways of motivating teachers to enhance sustainability of school project management. The study based on ground of both research approaches which were qualitative and quantitative approaches. Hierarchy of Needs Theory by Abraham Maslow in 1954 was used to guide the study. The study took place in Rukwa region in Sumbawanga Municipal council. Twelve (12) public secondary schools were involved in the study. The sample size of the study was 234 whereby 12 of the respondents were heads of the school and 222 were ordinary teachers. Data from the respondents were collected using questionnaire, interview and observation. The obtained data were analyzed basing on both quantitative and qualitative information. Quantitative data were analyzed by percentage distribution and presented using table while qualitative data were analyzed by developing categories and subcategories. The findings of the study identified two major aspects that answer the purpose of the study firstly the finding revealed several implemented school projects for the period from 2017-2023 in Sumbawanga municipality; secondly, the findings indicate ways of teachers motivation that are needed to motivate teachers in order teachers to dedicate their effort in managing sustainably the school projects. Basing on the study findings, the study recommended that schools and government should motivate teachers not financially only but, recognition, team working and appreciation can also be used to motivate teachers, so that teachers can manage well the school projects for benefit of the current and future students.

The impact of e-commerce platforms' quality on customer satisfaction and repurchase intention in post COVID-19 settings

PurposeE-commerce expands product and service reach, emphasizing the need for strategic market approaches to enhance e-service quality and drive sales growth. This paper aims to assess the relationship between the perceived quality of e-commerce platforms (characterized by measures of order and return convenience), customer satisfaction with online shopping and repurchase intention from online stores as well as examine whether demographic variables such as age, gender and area of residency (urban/rural) influence the ratings of each of these variables.Design/methodology/approachAn online, self-administered survey gathered 108 valid responses from e-commerce customers. Data were analyzed in Statistical Package for the Social Sciences (SPSS) and Analysis of Moment Structures (AMOS) through principal component analysis, confirmatory factor analysis and structural equation modeling (SEM) as well as correlation, descriptive statistics, difference of means tests and nonlinear regression.FindingsOnline shopping on e-commerce platforms is seen as convenient for both placing orders and managing returns. Additionally, consumers express satisfaction with their online shopping experiences and exhibit a strong intention to repurchase. The analysis revealed linear relationships between order convenience and customer satisfaction, between order convenience and repurchase intention and nonlinear relationships between return convenience, customer satisfaction and repurchase intention. No significant difference was found between the way the demographic variables rated the convenience, satisfaction and repurchase intention constructs.Originality/valueThis study contributes to the empirical literature on service quality in e-commerce by providing a streamlined model of the interactions among the factors as well as by isolating the nonlinear relationships and comparing results across three demographic variables. From a managerial standpoint, the findings suggest that strategies aimed at providing complete qualitative information and enhancing order and return convenience improve customer satisfaction and foster repurchase intention.