Video Tutorials Research Articles

Development of video tutorials on building construction and utilities subjects assisted by Bandicam application for grade XI students at vocational high school

The implementation of Building Construction and Utilities learning for class XI in Vocational High School (VHS) has faced several challenges including student understanding, teachers’ competency, and learning media. This study aims to result in a product, including the feasibility test and effectiveness on the topic of door and window frame details drawing assisted by the Bandicam application. We employed the Research and Development (R&D) model of 4D Thiagarajan. The trial was conducted on 14 students of the Building Information and Modeling Design (DPIB) expertise program class XI with input from 2 experts and 1 teacher. The data was collected through interviews, observations, and questionnaires. The obtained data was analysed using quantitative and qualitative descriptive analysis and descriptive statistics. The results show that the 4 video products were feasible and effective as seen from the improvement of student learning outcomes in the subject of building construction and utilities.

Vlogging as mediated mobility: Warm Experts 3.0 engaging in peer production and digital labor in the era of short videos

This article investigates the caregiving dynamics in the vlogs of Houniao vloggers on the Chinese short video platform Douyin. This article contextualizes the vlogging practices of these individuals within the sociocultural landscape of contemporary China, suggesting that vlogging acts as a medium for mediated mobility, enabling these vloggers to assume the role of ‘warm experts’. This study analyzes 50 tutorial videos produced by Chinese Houniao vloggers, revealing three interconnected themes: (1) the presence of digital care labor in the peer production of vlogs, (2) the necessity of relational labor to facilitate intragenerational connections, and (3) the complexities of managing visibility in an environment governed by platform algorithms. These findings depict Houniao vloggers as ‘ Warm Experts 3.0’, highlighting the potential of digital platforms to support active aging and promote inclusive societal engagement. Central to their role as warm experts, peer production emerges as a fundamental characteristic, underpinning the collaborative and community-focused nature of their digital interactions. Future research should explore the application of this prompted model across diverse communities, spanning both online and offline contexts.

AptitudeHub: A Centralized Platform for Free Aptitude Skill Development

In the modern educational landscape, aptitude skill development is critical for competitive exams, recruitment processes, and academic evaluations. However, current platforms are either financially inaccessible or lack a centralized and interactive approach. AptitudeHub aims to address these gaps by offering a free, locally hosted platform focusing on abstract reasoning, critical reasoning, and quantitative aptitude. It integrates features like interactive quizzes, performance tracking, and curated video tutorials to enhance learning outcomes. The platform is developed using the MERN stack, ensuring scalability, data privacy, and user-centric design. This paper reviews related works and presents a comparative analysis of the proposed system with existing solutions, highlighting its contribution to democratizing education

Model-averaged Bayesian ttests.

One of the most common statistical analyses in experimental psychology concerns the comparison of two means using the frequentist ttest. However, frequentist ttests do not quantify evidence and require various assumption tests. Recently, popularized Bayesian ttests do quantify evidence, but these were developed for scenarios where the two populations are assumed to have the same variance. As an alternative to both methods, we outline a comprehensive ttest framework based on Bayesian model averaging. This new ttest framework simultaneously takes into account models that assume equal and unequal variances, and models that use t-likelihoods to improve robustness to outliers. The resulting inference is based on a weighted average across the entire model ensemble, with higher weights assigned to models that predicted the observed data well. This new ttest framework provides an integrated approach to assumption checks and inference by applying a series of pertinent models to the data simultaneously rather than sequentially. The integrated Bayesian model-averaged ttests achieve robustness without having to commit to a single model following a series of assumption checks. To facilitate practical applications, we provide user-friendly implementations in JASP and via the package in . A tutorial video is available at https://www.youtube.com/watch?v=EcuzGTIcorQ.

A Content Analysis Study of Distortion's Influence on Drum and Bass Music Production

This study uses content analysis and draws upon aesthetic theory and technological determinism as theoretical frameworks to explore contemporary approaches to the use of distortion within drum and bass production. To achieve this, it investigates online video tutorials created by professional drum and bass producers and online content creators in order to extract insights into their common working practice when using distortion in their work. The analysis highlights a prevalent use of aggressive distortion to transform bass timbres, which is a trend originating in the 1990s that continues to shape the genre's evolving aesthetic. This research provides unique insights into the evolution. and impact of distortion and shows how established techniques persist while subtly evolving within the ever-changing production ecosystem.

Sacrospinous Hysteropexy-Video Tutorial of Construction and Application of a Feasible and Inexpensive Teaching Model for Simulation.

Sacrospinous hysteropexy is one of the preeminent uterus-preserving surgical techniques for treating pelvic organ prolapse supported by level one evidence. As training on models greatly improves surgical skills and outcomes, we developed a simple and inexpensive model to simulate sacrospinous hysteropexy. A step-by-step instruction for the production of the model is available to be viewed online. To keep production costs low, readily available materials were used, with a total cost per model of about 2 EUR (Austria, August 2023). All important anatomical landmarks (prolapsing uterus, vagina, ischial spine and sacrospinous ligament) were all represented. We present a detailed instructional video on how to construct the model and the practical training, detailing the individual steps of a successful sacrospinous hysteropexy, available online. Thus, trainees are able to practice the individual movements of the entire surgical procedure on this simulator model guided by the tutorial video. In this way, trainees will be able to practice the entire surgical procedure. An introduction to the model with explanation of all anatomical landmarks and a standardised explanation of the surgery with its individual steps (handout distributed). The presented video showcases the feasibility of the easy construction and application of a model for the surgical skill training of sacrospinous hysteropexy. Easily accessible, inexpensive material and its simple build make this a reproducible model regardless of geographic or socioeconomic resources.

WACARDIA: graphical MATLAB software for Wireless Assessment of CARDiac Interoceptive Accuracy.

Many theories of psychological function emphasize the importance of bodily sensations and the ability to accurately detect them, known as interoceptive accuracy. The most common measure of interoceptive accuracy uses heartbeat detection tasks such as the Whitehead Task, yet to our knowledge there are no freely accessible programs to conduct this task. In this paper, we present novel software called WACARDIA (Wireless Assessment of CARDiac Interoceptive Accuracy), which is free, open-source software that conducts the heartbeat detection task using Matlab and Psychtoolbox. WACARDIA contains several key features supporting participant engagement, operator convenience, and measurement accuracy. First, the program includes an optional practice trial of unlimited duration, a participant-facing graphical interface, and the ability to perform heartbeat detection training. Second, the operator is provided with a graphical user interface, live trial feedback, an accurate wireless electrocardiogram device, and a separate program to conduct the related Heartbeat Tracking task. Finally, the program ensures the accuracy of collected data by scheduling the delivery of tones with high precision and implementing fail-safes to automatically reset erroneous measurements. This paper includes flowcharts that help create transparency by describing our algorithm. We also outline customizable aspects of the program with the intent to have WACARDIA's algorithm expanded to accommodate more situations and applications. With this paper, we hope to encourage the practice of publicizing research software to contribute to the transparency, rigor, and reproducibility of scientific studies. WACARDIA and video tutorials are available at www.github.com/iankleckner/wacardia and http://wacardia.iankleckner.com.

Cerebrospinal fluid drain placement and comprehensive strategies for spinal cord protection in open thoracoabdominal aortic aneurysm repair.

Ischaemic spinal cord injury remains a significant challenge in thoracoabdominal aortic repairs. Modern techniques have reduced spinal cord injury rates yet managing patients during and after thoracoabdominal aortic repairs remains complex. This article outlines our comprehensive approach to the prevention of spinal cord injuries in open thoracoabdominal aortic repair operations, focusing on the placement of cerebrospinal fluid drain and intraoperative strategies to enhance spinal cord protection. Preoperative planning involves thorough patient assessment, prehabilitation and nutritional support, detailed imaging review, thorough operative planning and patient blood management. Intraoperative measures include the use of neuromonitoring techniques like near-infrared spectroscopy and motor evoked potentials, as well as cerebrospinal fluid drainage together with blood pressure management to optimize spinal cord perfusion. Postoperative management focuses on maintaining haemodynamic stability with high mean arterial pressure, along with close monitoring and management of the cerebrospinal fluid drain to improve spinal cord perfusion. Additionally, thromboelastography-guided strategies are crucial for optimizing coagulation and addressing postoperative bleeding complications. The goal of this multifaceted approach is to minimize the risk of spinal cord injury, thereby improving patient outcomes and reducing the incidence of postoperative paraplegia. Our video tutorial shows some of our preoperative and intraoperative techniques for spinal cord protection in thoracoabdominal aortic repairs.

Refining English tutors' skills: Documentary films as pre-teaching reference

Training spoken English tutors requires a variety of resources, including audio-visual references. However, popular social media tutorials often focus on teaching specific English materials, neglecting broader teaching techniques. Ideal tutors need a positive and engaging personality, knowledge transfer strategies, adaptable approaches to classroom conditions, meticulous preparation, and effective wrap-up activities - elements that are missing from most tutorial videos. This study investigates the potential of short documentary films as a reference for teaching techniques for 13 prospective tutors in an intermediate English class. Through an integrated mentoring program for the production of short documentaries, the study explores, describes and addresses the challenges of teaching preparation through observation, interviews and literature review. It also analyzes the potential of documentaries to support teaching and formulates criteria for effective documentary content relevant to teacher preparation. The findings suggest that integrating documentary film production into the English language teaching curriculum can equip tutors with the necessary skills for successful micro-teaching experiences. This approach allows tutors to create personalized short documentaries that serve as a reference for teaching techniques tailored to their specific pre-teaching needs. Tutors gain a deeper understanding and ability to demonstrate not only teaching techniques, but also classroom management elements such as preparation, wrap-up activities, brainstorming and teaching approaches.

Ultrasonographic approach to visualize the medial shoulder compartment and diagnose medial glenohumeral ligament and subscapularis lesions in dogs.

To provide a video tutorial on the diagnostic ultrasound approach to the medial compartment of the canine shoulder and provide comparisons of normal and pathological images with corresponding MRI. Dogs undergoing diagnostic ultrasound of the medial shoulder. The medial shoulder was positioned in flexion with external rotation to allow transducer access, clipped, and scrubbed with dilute chlorhexidine. A 2- to 14-MHz linear array probe with a footprint of 50 mm (V8 ultrasound system; Samsung) was used to visualize the medial glenohumeral ligament (MGL), subscapularis, and coracobrachialis with coupling gel, confirmed by cadaveric ultrasound-guided dye injection and dissection. Ultrasound and corresponding MRI were then used to contrast normal anatomy to a live sedated dog with clinical subscapularis tendinopathy and MGL desmopathy. Proton density-weighted MRI sequences (1.5T Vantage Orian; Canon) using a flex coil were able to identify all 3 structures and corresponded to ultrasound findings for normal and pathological anatomy. Diagnostic ultrasound identified normal and abnormal structures of the medial shoulder (coracobrachialis, subscapularis, and MGL). All imaging correlated well to MRI. Medial compartment disease of the shoulder is a well-described cause of canine lameness, but diagnosis has traditionally relied on MRI or arthroscopy. Prior ultrasound approaches did not distinguish MGL components, failed to consistently identify normal or surgically transected ligaments, and have not been studied in vivo. Our approach is different and can play an important role in diagnosing medial compartment lesions, as it possesses greater anatomical visualization than arthroscopy and is noninvasive, accomplished with sedation, and relatively accessible and affordable.

MetaboScope: A statistical toolbox for analyzing 1H nuclear magnetic resonance spectra from human clinical studies

Abstract Motivation Metabolic phenotyping, using high-resolution spectroscopic molecular fingerprints of biological samples, has demonstrated diagnostic, prognostic, and mechanistic value in clinical studies. However, clinical translation is hindered by the lack of viable workflows and challenges in converting spectral data into usable information. Results MetaboScope is an analytical and statistical workflow for learning, designing and analyzing clinically relevant 1H nuclear magnetic resonance data. It features modular pre-processing pipelines, multivariate modeling tools including principal components analysis (PCA), orthogonal-projection to latent structure discriminant analysis, and biomarker discovery tools (multiblock PCA and statistical spectroscopy). A simulation tool is also provided, allowing users to create synthetic spectra for hypothesis testing and power calculations. Availability and implementation MetaboScope is built as a pipeline where each module accepts the output generated by the previous one. This provides flexibility and simplicity of use, while being straightforward to maintain. The system and its libraries were developed in JavaScript and run as a web app; therefore, all the operations are performed on the local computer, circumventing the need to upload data. The MetaboScope tool is available at https://www.cheminfo.org/flavor/metabolomics/index.html. The code is open-source and can be deployed locally if necessary. Module notes, video tutorials, and clinical spectral datasets are provided for modeling. Supplementary information Supplementary data are available at Bioinformatics Advances online.

Sound Stack, Soundwalk, Southworth

This portfolio presents 3 pieces of videographic research focused on film sound and the soundscape. Alongside a written statement these works reflect and expand on a video essay I published in 2020 entitled Sonic Chronicle, Post Sound. The portfolio contains 3 new pieces of work; a video essay ‘Sound Stack’ which revisits my 2020 video essay and queries the pursuit of sonic authenticity in film soundtracks from the perspective of Michael Southworth’s soundscape research. An annotated soundwalk through Boston replicating Southworth’s 1967 research. And a tutorial video which explores the volumetric process used in the Sound Stack video essay.

Video Documented Upscaled Synthesis of Salts of the Parent Carbaborate Ion [CB11H12]−, its Undecafluorinated Form [CHB11F11]− and Useful Starting Materials for its Introduction

AbstractIn this work, we present our improved protocols for the single batch syntheses of approximately 32 g of [NHMe3][CB11H12] and 10 g of Na[CHB11F11] as well as salt metathesis reactions, granting access to useful starting materials to introduce the [CHB11F11]− anion. This includes the trityl cation [Ph3C]+ and the bis‐1,2‐difluorobenzene‐silver(I)‐complex [Ag(odfb)2]+, as well as some applications of the shown compounds. The described methodology allows the synthesis of large amounts of both the [CB11H12]− and the [CHB11F11]− anion and therefore making them accessible for further reactions. To facilitate the reproducibility, we present video tutorials of the synthetic steps towards Na[CHB11F11].

Development and effectiveness of short video tutorials in basic turning learning to enhance students' cognitive ability

This study aims to develop and evaluate the effectiveness of short tutorial videos in teaching the essential operation of lathe machines in mechanical engineering. Utilizing the ADDIE model (Analysis, Design, Development, Implementation, Evaluation), the research was conducted at SMK N 1 Sumatera Barat, involving 65 vocational school students. The short tutorial videos were designed to enhance students' comprehension and cognitive ability in lathe machine operations, addressing the challenges posed by traditional teaching methods. Data were collected through questionnaires and practical tests to assess students' understanding and skills. The findings revealed that the short tutorial videos significantly improved students' comprehension and cognitive ability, although variations in understanding levels were observed. Normality tests confirmed a normal data distribution, allowing for the use of paired sample t-tests, which indicated no significant difference between the Mechanical Engineering and Industrial Mechanical Engineering groups after using the tutorials. Validation by media and content experts demonstrated the high quality and relevance of the instructional material. This study underscores the importance of developing more interactive and adaptive learning media and highlights the need to explore further other factors influencing cognitive ability.

The Value Matrix: a communication tool to support shared decision-making and the practice of Spectrum of Care.

To provide a video tutorial on use of the Value Matrix in clinical practice. Any animal for which a preference-sensitive decision can be made regarding their care. The veterinary professional gathers a comprehensive history from the veterinary client and uses this information, in further discussion with the client, to develop 2 or more evidence-informed options for the veterinary patient's care. With the use of the Value Matrix, options are captured on a whiteboard or piece of paper, and the advantages and disadvantages of each option as well as financial cost are visually presented and discussed. The Value Matrix is a clinical-communication tool for supporting shared decision-making between veterinary professionals and clients and for delivering the Spectrum of Care. The Value Matrix is a practical tool that can assist veterinary professionals in collaborating with clients on making preference-sensitive decisions, providing contextualized care, and achieving informed-client consent.

Technical note: Measuring bicondylar length in computed tomography data.

With the increased use of 3D-generated images in biological research, there is a critical need to adapt classical anatomical measurements, traditionally conducted with calipers, to a virtual environment. We present detailed protocols for measuring bicondylar length, a critical dimension of the femur, using three different imaging software programs-3D Slicer™, Amira™, and Simpleware™. These protocols provide researchers and practitioners in radiology, orthopedics, biomechanics, and biological anthropology with accurate and reproducible measurement techniques. The objective is to standardize and support virtual osteology in biomechanical research, stature estimation, and related medical and anthropological studies. Adhering to standardized protocols, we adapted femoral bicondylar length measurements for computed tomography images from a New Mexican collection (n = 10). The method was designed for applicability and reproducibility across three software platforms. By comparing measurements from the same sample across different observers and different platforms, this study validates the accuracy and consistency of the adapted protocol, demonstrating its utility for research and clinical assessments. We present a step-by-step guide for each program, detailing bone alignment and measurement. We illustrate each step and provide video tutorials via links for an enhanced understanding of the process. Bicondylar length can be measured effectively in each software program following the provided instructions. However, ease of measurement varied among the programs, with some offering a more straightforward process. This variability underscores the importance of choosing appropriate software for the user's needs and proficiency. It also suggests areas for improvement and standardization in software design and instructional clarity.

Temporary palatopexy procedure for brachycephalic obstructive airway crisis in dogs.

To provide a video tutorial on how to perform a temporary palatopexy in an anesthetized brachycephalic dog. Brachycephalic dogs. To perform a temporary palatopexy, needle drivers, forceps, intubation equipment, and absorbable suture material are needed. In an anesthetized and ideally intubated patient, buried sutures are placed, tacking the free edge of the soft palate to the junction of the hard and soft palate. Temporary palatopexy pulls the soft palate out of the airway to improve airflow and manage brachycephalic upper airway crises. Temporary palatopexy can be used for brachycephalic obstructive airway crises in an attempt to avoid prolonged intubation, temporary tracheostomy, emergent palatoplasty, euthanasia, or death. This is not intended to replace permanent palatoplasty but to allow time for stabilization/transfer or delay palatoplasty due to the higher complication rate of emergent palatoplasty.

Slow-Paced Breathing Intervention in Healthcare Workers Affected by Long COVID: Effects on Systemic and Dysfunctional Breathing Symptoms, Manual Dexterity and HRV.

Many COVID-19 survivors still experience long-term effects of an acute infection, most often characterised by neurological, cognitive and psychiatric sequelae. The treatment of this condition is challenging, and many hypotheses have been proposed. Non-invasive vagus nerve stimulation using slow-paced breathing (SPB) could stimulate both central nervous system areas and parasympathetic autonomic pathways, leading to neuromodulation and a reduction in inflammation. The aim of the present study was to evaluate physical, cognitive, emotional symptoms, executive functions and autonomic cardiac modulation after one month of at-home slow breathing intervention. 6655 healthcare workers (HCWs) were contacted via a company email in November 2022, of which N = 58 HCWs were enrolled as long COVID (cases) and N = 53 HCWs as controls. A baseline comparison of the two groups was performed. Subsequently each case was instructed on how to perform a resonant SPB using visual heart rate variability (HRV) biofeedback. They were then given a mobile video tutorial breathing protocol and asked to perform it three times a day (morning, early afternoon and before sleep). N = 33 cases completed the FU. At T0 and T1, each subject underwent COVID-related, psychosomatic and dysfunctional breathing questionnaires coupled with heart rate variability and manual dexterity assessments. After one month of home intervention, an overall improvement in long-COVID symptoms was observed: confusion/cognitive impairment, chest pain, asthenia, headache and dizziness decreased significantly, while only a small increase in manual dexterity was found, and no relevant changes in cardiac parasympathetic modulation were observed.

Effect Of Audio-Visual Intervention and Cooperative Learning on Keyboard Mastery in Computer Studies Among Junior School Students in Ede, Osun State

This study examined the effect of audio-visual intervention and cooperative learning on keyboard mastery in computer studies among junior school students in Ede, Osun State. Three, hypotheses guided the study, and a 3×3 factorial quasi-experimental design was adopted which involved pre-test, post-test, non-randomized control and non-equivalent intact groups. The population for the study was all the students in Government Junior Secondary School Two in Ede South Local Government Area, Osun State, Nigeria, which at the time of this study was 965. The sample for the study was 261 from three intact classes; two experimental classes and one control class. Research Instruments consisted of: (i) computer keyboard mastery (CKM), (ii) Video Tutorials, (iii) Interactive Keyboard Simulator (iv) Typing Games and (v) a lesson plan structure provided to facilitate the teaching of computer keyboard mastery. The Computer Keyboard Mastery (CKM) was validated and pilot tested for reliability using Kuder Richardson 20 (KR-20) formula with a result of 0.75 value. Using ANCOVA to test the hypotheses generated for the study, the results revealed that there is a significant main effect of audio-visual intervention on Junior Secondary School Students’ Keyboard mastery level in computer studies in Ede, Osun State (F (1,177) =1137.406, p<0.05, η2=0.865). A significant main effect of cooperative learning exists on Junior Secondary School Students’ Keyboard mastery level in computer studies in Ede, Osun State (F (1,180) =1124.769, p<0.05, η2=0.862). There is a significant interactive effect of audio-visual and cooperative learning intervention on Junior Secondary School Students’ Keyboard mastery level in computer studies in Ede, Osun State (F (1,128) =0.057, p<0.05, η2=0.830). It was recommended that: (i) audio-visual intervention and (ii) cooperative learning should be adopted independently and (iii) in combination of both audio-visual intervention and cooperative learning should be adopted in teaching and learning of computer keyboard mastery at the Junior Secondary Schools for effectiveness.

Ultrasound-guided arthrocentesis and intra-articular injection of the hip and shoulder joints in the dog.

To provide a video tutorial on ultrasound-guided arthrocentesis and injection of the canine hip and shoulder joints. Dogs undergoing arthrocentesis or intra-articular injection for diagnostic or therapeutic purposes. The target joint is visualized in long axis with a 70% isopropyl alcohol medium and linear array probe with a frequency range of 2 to 14 MHz and footprint of 50 mm after clipping a window and preparing the region sterilely. The needle is inserted, bevel up, in long axis with the probe angled at the appropriate trajectory to enter the joint space. The needle is advanced until the tip is visualized entering the joint. Aspiration to obtain synovial fluid can further confirm needle placement or provide diagnostic sampling prior to injection. The aspirate syringe is exchanged for that containing the therapeutic agent, and injectate can then be visualized entering and/or expanding the joint upon injection. Ultrasound-guided arthrocentesis will help identify deep appendicular joints (hip and shoulder), avoid surrounding vasculature, confirm needle placement, and target joint fluid pocketing. Needle guidance into a joint can reduce iatrogenic tissue damage from inappropriate needle placement and/or by minimizing attempts. For arthrocentesis, ultrasound guidance can maximize joint fluid volume acquisition for diagnostic purposes (cytology, culture, and fluid analysis) while also avoiding blood contamination. For joint injections, ultrasound will help ensure real-time intra-articular delivery of the injectate (regardless of attaining synovial fluid feedback) to maximize the therapeutic effect. For either purpose, iatrogenic tissue damage and procedure time are minimized.