bluuebunny/crossref_metadata_2025 huggingface dataset:
Focal Dome Condylar Osteotomy
Authors: Bhadiyadra Ravi , Apte Aditya P. , Chaudhary Milind
Published: August 2022

Background and Aims:

Extra-articular high tibial osteotomies reliably treat varus deformities seen in medial compartment osteoarthritis of knee (MCOA). Recently, attention has turned to the detection and treatment of intra-articular knee deformity to treat MCOA. Tibial condylar valgus osteotomy (TCVO) is an intra-articular osteotomy (IAO) that corrects the varus by elevating the medial tibial condyle and is fixed with a plate. TCVO improves joint line convergence angle (JLCA), spine edge angle (SEA), and spine vertical distance (SVD), which measure intra-articular deformity. It may undercorrect the mechanical axis to <50%. Focal dome condylar osteotomy (FDCO) is recently described and claims to correct both the intra- and extra-articular deformities in MCOA. We aimed to study the immediate results of FDCO and compare its efficacy with TCVO.

Patients and Methods:

We performed ten FDCO procedures on ten patients over the last year. The mean age was 57 years. We compared the results with a similar retrospective cohort of ten TCVO patients.

Results:

The mean preoperative (bo) mechanical axis deviation (MAD) in FDCO was −13.8% and improved to 51.6%. TCVO group had a similar mean postoperative (po) MAD of 43.5% (P = 0.38). Although 6 of 10 FDCOs had MAD >50%, only two of TCVOs crossed the midline. The mean bo medial proximal tibial angle in FDCO was 85.9° and improved significantly po to 93°. Hip knee ankle angle, ankle joint line orientation, and knee joint line orientation improved significantly as did JLCA, SEA, and SVD. Condylar plateau angle did not change.

Conclusion:

FDCO is an IAO with a vertical limb that passes through the lateral tibial spine and a medial curved limb. This single osteotomy can correct the intra-articular and extra-articular varus deformity. Although there was no significant difference in the correction of intra- and extra-articular deformity parameters between FDCO and TCVO, we feel that it was part of our learning curve. FDCO has the potential for better correction of the mechanical axis along with intra-articular deformities.
Intramedullary Limb Lengthening
Authors: Maai Nader , Bernstorff Maria Alexandra , Koenigshausen Matthias , Schildhauer Thomas Armin , Ferreira Nando
Published: August 2022

Background:

Intramedullary limb lengthening has become more popular in the past two decades. This study aimed to investigate the mechanical properties of the various intramedullary lengthening devices currently available to orthopedic surgeons.

Materials and Methods:

A load cell connected to an electromechanical tensile testing machine was used to apply a bending force to nine intramedullary lengthening nails: Albizzia Ø 11 mm, intramedullary skeletal kinetic distractor Ø 10.7 mm, Precice Ø 10.7 mm, G-Nail Ø 13 mm, and Betzbone Ø 9 mm to Ø 13 mm. The force needed to deform each nail by 0.01 mm, 0.05 mm, 1 mm, and 3 mm was measured and compared.

Results:

The nail with the smallest diameter (Betzbone Ø 9 mm) needed the least force to deform. The nails with the biggest diameter (G-Nail Ø 13 mm and Betzbone Ø 13 mm) needed the most force to deform. Comparing similar-sized implants, nails manufactured from surgical steel or cobalt-chrome were more resistant to plastic deformation than titanium nails.

Conclusion:

Intramedullary lengthening device's ability to resist bending deformation depends on the diameter and material of the nail. Surgical steel and cobalt-chrome alloy nails showed higher resistant to plastic deformation when compared to titanium nails.
A Linear Regression Model Using Computed Tomography of Forearm Osteology to Predict Radius and Ulna Characteristics for Surgical Planning
Authors: Pretorius Henry Sean , Ferreira Nando , Burger Marilize Cornelle
Published: August 2022

Introduction:

The radius and ulna are commonly fractured bones. The restoration of the native anatomy is the primary surgical objective but can be difficult due to a mismatch between the bones' shape and available implants. A thorough understanding of the underlying anatomical relationships between the radius and ulna could allow for a more accurate prediction of variables, thus enabling the surgeon to treat patients more effectively.

Methods:

A cross-sectional investigation of forearm computed tomography scans and measurements were conducted on 97 forearms. Pearson's correlations were used to evaluate relationships between variables, and those with a coefficient of r > 0.4 and P < 0.001, as well as those considered clinically relevant, were carried forward into a multiple linear regression for each outcome variable, namely: (i) radius length, (ii) radius of curvature, (iii) the minimum diameter of the radial canal, (iv) ulna length, and (v) the minimum diameter of the ulna canal. A stepwise approach was used for the multiple linear regression analysis, with a significance level of 0.05 for predictor variables.

Results:

Radius length: in the multiple linear regression model, only ulna length remained in the model (adjusted R
2 = 0.85). The radius of curvature: the final model only included ulna length (adjusted R
2 = 0.30). Radius canal minimum width: three measurements were included in the final model (adjusted R
2 = 0.82). Ulna Length: six independent correlations between individual measurements and the ulna length were observed, with radius length and the radial neck length being included in the final model (adjusted R
2 = 0.86). Ulna canal minimum width: the final regression model included four variables: the maximum diameter of the distal third of the radial canal, the minimum diameter of the radial canal, and the minimum diameter of the proximal and middle third aspects of the ulna canal (adjusted R
2 = 0.80).

Conclusion:

The results of this investigation illustrate that anatomical predictions for bone size can be made using other anatomical landmarks except for the radius of curvature. The clinical application and implementation of this statistical model need further research.
Hydrosurgical Debridement of Grade VI External Fixator Pin Site Infection
Authors: Saini Aaron Kumar , Grey J. P. , Venter Rudolph , Ferreira Nando
Published: August 2022

Background:

Pin site infection is a common complication with external fixation, with a reported incidence of 26%–71% in the context of limb reconstruction. The Checketts and Otterburn (C&O) classification is frequently used, with minor infections (C&O I–III) treated with pin site care and enteral antibiotics. Major infections (C&O IV–VI) require removal of the infected pin or fine wire. Surgical debridement is indicated where the infection persists following pin removal (C&O grade VI). The Versajet hydrosurgery system (Smith & Nephew, Memphis, Tennessee) utilizes a saline jet to debride biological tissue.

Methods:

A retrospective review was conducted on all patients who underwent Versajet hydrosurgery debridement with C&O grade VI pin site infections between January 2011 and January 2021. Data regarding patient demographics, fixator type, indication for the initial surgery, and treatment outcome were recorded.

Results:

The cohort comprised seven males (87.5%) and one female (12.5%) with a mean age of 41.4 years ± 17.74 (range 16–61). Mean follow-up was 11.8 months ± 6.2 (range 7–25). The mean time in external fixator was 155 days ± 85.19 (range 83–354), and the mean time between fixator removal and Versajet debridement was 46 days ± 33.83 (range 3–116). No perioperative complications were experienced, and all patients (n = 8, 100%) were found to be infection-free at the last clinical review, with healed overlying soft tissue.

Conclusion:

The Versajet hydrosurgical debridement system is effective in managing C&O grade VI pin site infections. The method is reproducible and provides long-term clearance of infection, allowing subsequent soft tissue healing.
Continuous Irrigation as Dead Space Management for Fracture-Related Type 1 Intramedullary Chronic Osteomyelitis
Authors: Grey Jan-Petrus , Burger Marilize , Marais Leonard Charles , Ferreira Nando
Published: August 2022

Introduction:

Dead space management following intramedullary debridement and reaming can be challenging and several alternatives have been described. The main objective of this study was to investigate the clinical outcome and resolution rate in patients treated for fracture-related Cierny and Mader anatomical type 1 intramedullary chronic osteomyelitis by means of continuous irrigation (modified Lautenbach system) as dead space management following intramedullary reaming.

Materials and Methods:

A consecutive series of thirty patients with Cierny and Mader type 1 chronic osteomyelitis, treated between May 2016 and September 2019, were evaluated retrospectively. Patient history and clinical information, including imaging and laboratory results, were reviewed. Treatment procedures and antibiotic profiles were also recorded.

Results:

The initial cohort included 30 cases with 18 tibias, 11 femurs, and one humerus. Seven patients were excluded; three patients did not return for follow-up and four patients had <6 months of follow-up. Of the remaining 23 patients, 91% (21/23) achieved resolution of infection over a median follow-up period of 16 months (interquartile range [IQR] 7–21 months). Infecting organisms where isolated in 65% (15/23). The median duration of hospital stay was 6 days (IQR 4–7 days). Postoperative complications were noted in two cases and involved a tibial and femoral refracture, respectively. Both patients however achieved union without recurrence of infection following surgical intervention.

Conclusion:

Continuous irrigation is a cost-effective single-stage surgical option for dead space management during the treatment of intramedullary chronic osteomyelitis. It provides the advantage of instilling high dose intramedullary antibiotics and negates the need for a second surgical procedure while achieving similar outcomes than other dead space management techniques.

Level of Evidence:

IV, single-center retrospective study
First Metatarsal Distraction Lengthening Without Arthrodesis after Failed First Metatarsal Phalangeal Joint Replacement
Authors: Monti Lorenzo , De Marchi Fabrizio , Lovisetti Luigi , Crippa Ilaria Alice , Catagni Maurizio A.
Published: August 2022

Arthrodesis is the most common salvage procedure for failed first metatarsophalangeal joint replacement arthroplasty. However, such procedure is not without limitations. Hereafter, we present the first case of replacement arthroplasty by distraction lengthening without associated arthrodesis as a salvage procedure for a failed first metatarsophalangeal joint replacement arthroplasty.
The Efficacy and Safety of Thrombolytic Agents for Patients with Prosthetic Valve Thrombosis
Authors: Sharma Vinod , K. Arora Brig Y , Gupta Lokesh Chandra , Poonia Amitabh , Raina Sukriti , Yadav Uday Singh , Sharma Ruchi , Dwivedi S
Published: August 2022

Introduction:

Prosthetic valve thrombosis (PVT) is a serious complication seen with mechanical prosthetic cardiac valves and is associated with high mortality. Emergency surgery (thrombectomy or valve replacement) had been the traditional treatment, but now with intravenous thrombolytic therapy as an alternative to emergency surgery in patients with PVT has shown excellent success rate and acceptable risk. This study is aimed to determine efficacy and safety of use of thrombolytic agents (tPA or STK) in patients with PVT.

Materials and Methods:

This was a retrospective, single-center study of patients with PVT admitted between 2004 and 2020 at a tertiary care center in North India. The diagnosis of PVT was based on a history of prosthetic heart valve replacement, clinical presentation, and by diagnostic methods. All patients received either tenecteplase or streptokinase given as a bolus dose of 2.5 lac units over ½ h, followed by 1 lac units/h for 24–48 h depending on clinical response and complication, whereas tenecteplase (1 mg/kg of body weight) was given as bolus.

Results:

Of 72 patients, 45 patients received t-PA as a thrombolytic drug. Complete success was obtained in 39 patients (86.66%), whereas partial success in 3 (17.77%) and failure in 3 (6.66%). Among the patients who received streptokinase (n = 27), complete success was found in 23 patients (85.19%), whereas partial success was seen in 3 (11.11%) and failure was seen in 1 patient (3.7%).

Conclusion:

Thrombolysis is a reasonable option in patients with PVT. Our study has reiterated that major factors for PVT are warfarin poor compliance and subtherapeutic international normalized ratio. Postclosure clinical follow-up along with patient education should be followed in patients with mechanical prosthetic valve.
Escherichia coli Urosepsis Leading to Native Valve Endocarditis
Authors: Kamat Sandeep , Sagar V. V. S. S. , Sai Akhil Chitturi Venkata , Acharya Sourya , Shukla Samarth , Kumar Sunil
Published: August 2022

Escherichia coli, a Gram-negative facultative anaerobe, is the common causative organism leading to urinary tract infection. However, the involvement of endocardium byE. colihas been reported to be very rare in spite of the septicemia caused by this organism. However, the mortality rate due to infective endocarditis caused byE. coliwas reported to be higher than due to other organisms like HACEK group of organisms. Conventional risk factors leading to infective endocarditis include cirrhosis of the liver, prosthetic heart valves, and other sources of infection like urosepsis. Here, we report the case of a 60-year-old diabetic male who presented with obstructive uropathy-induced urinary tract infection leading to infective endocarditis.
Plain Radiographic Diagnosis of “Osteogenesis Imperfecta Congenita” (Type III) in a 2-Year-Old Boy
Authors: Usman Bello O. , Oyewole Fatai A. , Suleiman Lawal
Published: August 2022

Osteogenesis imperfecta (OI), or brittle bone disease, is a rare disorder with congenital bone fragility caused by mutations in the genes. This case is reported because of its rarity and paucity in the literature in Nigeria. Available data on OI in Black African children are limited.
Evaluation of Knowledge, Effectiveness, and Challenges of Picture Archiving and Communications System in National Orthopaedic Hospital Dala-Kano, Nigeria
Authors: Saidu Adamu Muhammad , Tahir Nasiru Musa , Salihu Nuhu Muhammad , Sidi Mohammed , Yunusa Dahiru Mohammed
Published: August 2022

Background:

Picture Archiving and Communications System (PACS) is a networked group of computers, servers, and archives that can be used to manage digital images, specifically designed for the radiology department.

Aims:

The study aims at evaluating the knowledge, effectiveness, and challenges of picture archiving and communications system (PACS) in National Orthopaedic Hospital Dala-Kano, Nigeria.

Materials and Methods:

The study design was cross-sectional, and it was prospectively carried out from July 2020 to December 2020. A total number of 120 semi-structured questionnaires were distributed to consented respondents for the purpose of data collection. The validity and reliability of the questionnaire were tested. The collected data were analyzed using SPSS version 21.0.

Results:

The results showed that 78 (85%) of the respondents had a better knowledge on how to use PACS, 80 (87%) admitted that PACS saves a lot of their time, and 91 (99%) admitted that PACS improves the quality of their work in providing better patient care. Eighty-five (92%) admitted that images on PACS have diagnostic information and 73 (79%) were satisfied with the quality of images on PACS. Challenges faced by the PACS user include epileptic power supply, unavailability of PACS computers at all service points, slow network, improper patient identification, and sometime poor image quality.

Conclusion:

This study shows that majority of the respondents had good knowledge of PACS and it was highly effective.
Распределение последовательностей Коробова-Главки
Authors: Illarionov Andrei Anatol'evich
Published: August 2022

Пусть $N$ - натуральное число и $a_1, …, a_s$ - целые числа.
Н. М. Коробов (1959 г.) и Е. Главка (1962 г.) предложили использовать точки вида
$$
x^{(k)}=(\{\frac{a_1 k}N\}, …, \{\frac{a_1 k}N\}),
\qquad k=1,…, N,
$$
в качестве узлов многомерных квадратурных формул. Мы получаем некоторые новые результаты, связанные с распределением последовательности $K_N(a)=\{x^{(1)},…, x^{(N)}\}$. В частности, мы доказываем, что
$$
\frac{\ln^{s-1} N}{N \ln\ln N} \underset{s}\ll D(K_N(a)) \underset{s}\ll \frac{\ln^{s-1} N}{N} \ln\ln N
$$
для "почти всех" $a\in (\mathbb Z_N^*)^s$, где $D(K_N(a))$ - отклонение последовательности $K_N(a)$ от равномерного распределения, а $\mathbb Z^*_N$ - приведенная система вычетов по модулю $N$.
Библиография: 18 названий.
The evolution of a study and research path in Statistics
Authors: Markulin Kristina , Bosch Marianna , Florensa Ignasi , Montañola Cristina
Published: August 2022

We present the organisation of a first course in statistics for Business Administration degree students, which includes a study and research path (SRP) as an inquiry-based teaching proposal. The paper aims to summarise the course’s evolution, design, and reflections on its various components separately and together as a complete unit. The analysis considers three perspectives on the course: those of the students, the lecturer, and the researcher to provide a critical perspective. The discussion includes the joint evolution of the course and the SRP. Under the Anthropological Theory of the Didactic framework, we show that the design and management of the SRP cannot be detached from the course as a whole. We also see how the course components nourish the SRP and how this, in turn, drives the evolution of the course content and adapts it to the students’ professional needs. This inquiry proposal requires a multidimensional approach in both its planning and the dissemination of its outcomes in the research and professional literature. Therefore, our study can contribute to didactics research on SRPs and serve as a starting point for newcomers to inquiry-based teaching, and as a reflection to foster collaborations between researchers in didactics and lecturers.

Nous présentons l'organisation d'un premier cours de statistique destiné aux étudiants en gestion d’entreprise, qui comprend un parcours d'étude et de recherche (PER) en tant que proposition d'enseignement basé sur l'enquête. L'article vise à résumer l'évolution du cours, sa conception et les réflexions sur ses différentes composantes, séparément et dans leur ensemble, comme une unité complète. L'analyse prend en compte les différents points de vue sur le cours, celui de l'étudiant, celui de l'enseignant et celui du chercheur, offrant ainsi une perspective critique. Elle inclut également l'évolution conjointe du cours et du PER. Dans le cadre de la théorie anthropologique de la didactique, nous montrons que la conception et la gestion du PER ne peuvent être détachées du cours dans lequel il s’inscrit. Nous montrons comment les composantes du cours nourrissent le PER et comment celle-ci, en retour, fait évoluer le contenu du cours en l'adaptant aux besoins professionnels de l'étudiant. La proposition d'enquête nécessite une approche multidimensionnelle, tant dans sa planification que dans la diffusion de ses résultats dans la recherche et la littérature professionnelle. Par conséquent, notre étude peut contribuer à la recherche en didactique sur les PER, servir de point de départ pour les nouveaux venus à l'enseignement basé sur l'enquête et de point de réflexion pour favoriser les modes de collaboration entre chercheurs en didactique et enseignants universitaires.
Characterization by Electric Impedance Sensing of Normal and Cancer Cell Attachment and the Effect of Ginseng
Authors: Martinez Alejandra , Kong Steffi Shi Qing , Behravan Maddy
Published: August 2022

This research reestablishes an application of an Electric Cell Substrate Impedance Sensing (ECIS) system to examine the effects of Ginseng on the attachment of epithelial cells; HaCAT (healthy human skin cells) and A431 (human carcinoma cells). The study is functionally a continuation of the authors’ previously published paper, where an identical set of experiments were carried out for the putative homeopathic Reishi. The purpose for this study was two-fold: (1) to investigate variations in results between a roundly discredited homeopathic (Reishi) and a studied, well-accepted homeopathic (Gensing), and (2) to justify the experimental technique from the results - as the electric impedance sensing technique has heretofore been considered itself experimental; specifically, impedance measurements reflecting cell-to-cell binding and their associated binding electric field strength and the high correlation to shape (normal vs. cancer) and cluster size (as measured by increased field strength in greater clusters). Here the impedance analysis shows that Ginseng at applied doses does not alter the impedance of HaCAT colonies but that Ginseng does significantly increase the strength of cell-to-cell attachments in A431 colonies and may confer previously suggested anti-inflammatory properties. This result is not seen with the previous set of Reishi experiments, and this correct distinction provides more ammunition for the electrical impedance sensing technique as a valid differentiation in cell attachment.
Disruption, Transition, and Re-imagining: Teaching, Learning and Development in the Midst of the Two Pandemics
Authors: Many Joyce E. , Bhatnagar Ruchi , Tanguay Carla L.
Published: August 2022

In “Will Schools Change Forever,” Waite and Arnett contend our educational system, and our society as a whole, have been confronted with two pandemics, COVID-19 and systemic racism (2020). Both of these pandemics have acerbated challenges schools must address and have exposed chronic inequities in educational systems. Our inquiry is case study of 23 novice teachers who graduated from our urban institution and their perception of how the pandemics impacted the development of their students, their own professional trajectory, and their future instruction. Semi-structured interviews focused on educators’ approaches to instruction across 12-18 months of the pandemic. Data were analyzed using NVivo through open coding. Results indicated novice teachers’ initial teaching experiences were disrupted by both Covid-19 and the social unrest during this time period. The challenges they faced reflected their focus as culturally responsive educators who were working to meet the needs of the learners in the urban schools where they were employed. The stories they shared related their challenges (a) in engaging students, and (b) in making connections to students and building a sense of community in the virtual environment. Eventually, however, these educators were able to transition to effectiveness as student-centered educators (a) by embracing the digital environment, and (b) by providing supports for student success. Drawing on their experiences and perceptions, our participants also offered advice on reimagining education and classrooms of the future for the new normal.
The Effect of Leisure Time Satisfaction Levels of University Students Taking Reformer Pilates Training on Life Satisfaction: Structural Modeling
Authors: Karagoz Seniz
Published: August 2022

This study aims to examine the relationship between leisure time satisfaction and life satisfaction of university students receiving Reformer Pilates training. For this purpose, 234 people from Afyonkarahisar province, reached by purposeful sampling method, constituted the research participants. Leisure Satisfaction Scale developed by Beard and Raghep (1980) and The Satisfaction with Life Scale developed by Ed Diener et al. (1985) was used as a data collection tool. The Cronbach Alpha reliability coefficient of the Leisure Satisfaction Scale was 0.76, and the Cronbach Alpha reliability coefficient of the life satisfaction scale was 0.70. For the sub-dimensions of the leisure satisfaction scale, the internal consistency coefficients ranged from 0.70 to 0.89. Validity and reliability analysis (EFA) of the obtained data was performed, then confirmatory factor analysis (CFA) and structural equation modeling (SEM) were applied. As a result of the established model (RMSEA = .07, CFI = .96), a highly significant relationship was found between leisure time satisfaction and life satisfaction (p0.05). It was found that the leisure time satisfaction levels of female students who took the reformer pilates training had a high effect on life satisfaction. The findings suggest that reformer pilates training plays an important role in increasing life satisfaction in young women as a leisure time evaluation tool.
Latinx Community College Student Co-Enrollment
Authors: Taggart Amanda
Published: August 2022

Co-enrollment, defined as simultaneous enrollment at more than one postsecondary institution, has become increasingly prevalent among college student attendance patterns. This descriptive study analyzes the characteristics and experiences of a nationally representative sample of co-enrolled Latinx community college students from the Beginning Postsecondary Longitudinal Study (BPS: 12/17). Results showed that certificate, associate’s degree, and bachelor’s degree completion was higher for co-enrolled Latinx community college students than for the entire sample of Latinx community college students. In addition, Latinx community college students co-enrolled at greater rates than the total sample of students in the dataset who co-enrolled.
Resilience is the Key: A Concurrent Mixed Methods Study on Surviving the Challenges of COVID-19 among Philippine Schools Overseas
Authors: Acosta Imee Colonia , Acosta Alexander S.
Published: August 2022

The COVID-19 pandemic has brought unprecedented challenges among schools across the globe, including the Philippine Schools Overseas (PSOs). Using a convergent mixed methods design, this study investigated the perceptions, views and experiences of the respondents to the unexpected occurrence of COVID 19. In this approach, quantitative and qualitative data collection techniques were used in parallel with each other. Datasets were analyzed separately and merged at the point of integration where they are arrayed side-by-side and by using a joint display. A total of eighty-eight participants from PSOs participated the survey, and nine respondents participated in the phenomenological interviews. The chi-square analysis revealed non-significant association between the respondents’ designation and their perceptions to surviving the challenges of COVID-19 in relation to challenges encountered, learning continuity, health and safety protocols, and lessons learned. Qualitative findings revealed that mitigating the challenges, pursuing learning continuity, observing stricter health and safety protocols, and learning from experiences are the best approaches to survive the challenges. The direct comparison of the quantitative and qualitative results allowed us to draw meta-inferences which were classified as confirming and expanding. The mixed methods analyses illuminated the overall aspects of how schools survived the COVID-19 challenges, thus creating a more complete picture of the phenomenon under study.
Investigation of High School Students' Visual Literacy Levels
Authors: Hanci Hacer
Published: August 2022

This study was conducted to determine the visual literacy levels of high school students and to reveal whether visual literacy levels are affected by some variables. In this context, the visual literacy levels of the participants were examined according to gender, class and achievement level on the basis of comparative relational screening method. The study group consisted of 299 high school students studying in Sivas, Konya and Mersin city centers. Personal Information Form and Visual Literacy Scale were used to collect the data of the study. As a result of the study, it was discovered that the visual literacy levels of high school students were moderate in some dimensions but generally high. In the study, a partially significant difference was found according to the gender variable. In the study, it was observed that the level of visual literacy increased in parallel with the grade level. Finally, as the success level of the students increases, their visual literacy increases significantly.
Can Nanotechnology Keep Us Dry in the Rain: An Inquiry-Based Activity to Help Students Improve Their Investigation Skills
Authors: Arabacıoğlu Sertaç
Published: August 2022

In scientific practices, students are frequently asked to conduct investigations to produce data that will serve as the basis for evidence that meets the goals of an investigation. But however, assisting in the formulation and implementation of students' investigations is often a difficult task for many teachers because authentic investigations include using multiple variables and further providing of evidence to support explanations or solutions. The purpose of this study was to gain a better understanding of the potential of a nanotechnology activity on encouraging the formulation and implementation of students' investigations. The "Can Nanotechnology Keep Us Dry in the Rain?" activity was developed as part of an in-service teacher training designed to assist science teachers in implementing inquiry-based science practices in their own classrooms. To discuss the potential of the activity, the author has provided the detailed analysis from the classroom visits of four case teachers in three governmental schools. The qualitative data was collected through video recordings, feedback of teacher trainers, and pre- and post- interviews. The results of this research provide supporting evidence that the nanoscale changes could be a powerful tool for four case teachers to provoke students for deeper inquiry. The present research, therefore, contributes to a growing body of evidence suggesting the direct demonstration of conducting hands-on experiments to formulate and implement the investigations of nanoscale phenomena.
Science Education Research within TPACK Framework at a Glance: A Bibliometric Analysis
Authors: Putri Ananda Hafizhah , Robandi Babang , Samsudin Achmad , Suhandi Andi
Published: August 2022

We conducted a bibliometric analysis of the scientific articles in the field of science education research within TPACK framework published between 2012 and 2021. In total, 910 articles published in science education and technological education journals were extracted from Scopus databases. This study aims to present a summary of science education research within TPACK framework regarding number of annual production, most influencing authors and productive countries, the co-authorship collaboration, and research foci. The main findings show that the number of articles on science education research within TPACK framework throughout the period 2012 to 2021 fluctuated. Co-authorship collaborations were mostly made up of researchers from the same country. Furthermore, a shift in the research foci was observed. Recent research foci have emphasized higher education, self-efficacy, and STEM as important keywords. In addition, one of the most common articles published in the field is a literature review.
Influence of Cultural Competency Program on Bias in a Community Volunteer Program
Authors:   , Anderson Melodie
Published: August 2022

Practice Problem: Individuals may express hesitancy in volunteering in community health programs that directly interface with persons experiencing poverty due to poverty biases. Failure to understand the issues and needs of those experiencing poverty may factor into disparities and inequities along the social determinants of health, leading to poorer population health, well-being, and quality of life. PICOT: The PICOT question that guided this project was in volunteers (mentors) of community health programs (P) how does a cultural competency program (I) compare to the standardized training program(C) influence bias (0) over 8 weeks (T)? Evidence: An evidence review indicated poverty simulation increases awareness of personal beliefs or attitudes of the impoverished. Additionally, it provided insight into psychosocial and physical challenges experienced by them. Evidence supported that mindfulness is effective in improving concentration, processing a situation in a non-judgmental way, while anticipating activities, and preparing for an actionable response that may positively influence engagement and empathy. Intervention: A cultural competency program was developed. The program included a virtual online poverty simulation and mindfulness activities implemented over 8 weeks. Participants completed the System and Individual Responsibility for Poverty Scale tool pre- and post-intervention to measure perceptions of poverty and its causes. Outcome: Persons interested in becoming volunteer mentors for a faith-based vocational readiness program were the participants of this program. The results were not statistically significant. Feedback from participants provided insight that can be utilized for future program planning. The feedback included having respect for persons experiencing poverty and attempts to overcome impacting factors (i.e., psychosocial, economic, and legal). Conclusion: This cultural competency program highlighted how perceptions of poverty can be introduced into a volunteer or mentoring orientation program within organizations that focus on improving community health. Incorporating a peer discussion component into the implementation phase is an important consideration.
Okul Öncesi Çocukların Sosyal ve Duygusal Yeterliliklerinin Değerlendirilmesi
Authors: GÜLAY OGELMAN Hülya , ERTEN SARIKAYA Hatice , GÜNGÖR Hande
Published: August 2022

Gelişim, kalıtım ile çevrenin etkileşimi doğrultusunda devamlılığını sağlar. Çevreden gelebilecek tüm değişimlerin (olumlu-olumsuz), gelişimi etkileyeceği söylenebilir. Günümüzde yaşanan COVID 19 pandemisi de bu kapsamda önemli çevre etkilerinden birisidir. Bu araştırmada, pandemi kısıtlamalarının büyük bir bölümü kaldırılmış olsa da halen devam eden COVID 19 sürecinde 36-60 ay çocukların sosyal ve duygusal yeterliklerinin değerlendirilmesi amaçlanmaktadır. Nicel araştırma yöntemlerinden ilişkisel tarama modelinde gerçekleştirilen araştırmanın örneklem grubunu Denizli ili Pamukkale ilçesinde bağımsız anaokuluna devam eden 87’si (%51.2) kız, 83’ü (%48.8) erkek 170 çocuk oluşturmaktadır. Araştırmada veri toplama aracı olarak Okul Öncesi Sosyal Beceri Değerlendirme Ölçeği (OSBED), Duygu Düzenleme Ölçeği ve araştırmacılar tarafından oluşturulmuş Kişisel Bilgi Formu kullanılmıştır. Araştırmanın sonuçlarına göre çocukların duygu düzenleme becerileri ile sosyal becerilerinden başlangıç becerileri, akademik destek becerileri ve arkadaşlık becerileriyle yüksek düzeyde olumlu yönde ilişkili olduğu görülmektedir. Çocukların değişkenlik/olumsuzluk düzeyleri ile sosyal becerilerden başlangıç becerileri ve sosyal becerilerinden arkadaşlık becerileri arasında ise olumsuz yönde anlamlı bir ilişki olduğu görülmektedir.
OLHAR SOBRE O ESTÁGIO CURRICULAR SUPERVISIONADO NO CURSO DE PEDAGOGIA
Authors: Rodrigues Andrade Rosana Cássia
Published: August 2022

Embora o estágio na formação de professores venha sendo objeto de muitas pesquisas, não se percebem resultados significativos desses estudos na dinâmica de seu desenvolvimento nas universidades. Nesse sentido pode-se afirmar que o estágio curricular clama por novos sentidos, o que tem instigado os pesquisadores a novas buscas. No contexto dessa problemática, emergiu a questão orientadora dessa pesquisa: O que os relatórios de estágio dos alunos do curso de Pedagogia revelam sobre o Estágio Supervisionado na formação do professor para atuar no ensino básico?  Em consonância com os objetivos propostos, optamos por uma abordagem qualitativa de investigação, realizando pesquisa bibliográfica e pesquisa documental, selecionando 10 relatórios de estágio supervisionado   do curso de Pedagogia. A partir da leitura dos relatórios foram definidas 3 categorias de análise: 1) estágio como pesquisa 2) O estágio na perspectiva reflexiva 3) estágio relação teoria e prática. Nos relatórios analisados, constatamos que o estágio supervisionado traz de forma recorrente a reflexão como fio condutor, e são considerados como um espaço de pesquisa, visando favorecer maior conhecimento da realidade do profissional docente, a partir da problematização, teorização, reflexão, intervenção e redimensionamento da ação. Apontam também a dificuldade de se romper com a dicotomia entre teoria e prática na formação do professor. Apesar desta dificuldade, percebe-se grande empenho na busca de soluções que permitam transpor os entraves que se colocam.
PABLO NERUDA E PABLO PICASSO: ESPAÑA EN EL CORAZÓN E GUERNICA COMO REPRESENTAÇÃO DAS EXPERIÊNCIAS HUMANAS
Authors: Soares Rodrigues Valéria Daiane
Published: August 2022

Quais são os limites entre as artes na representação das relações humanas? Talindagação constitui elemento motivador para a escrita deste texto. Busca-se, a partir da críticaespecializada e da obra Guernica, de Pablo Picasso e España en el Corazón, de Pablo Neruda,refletir sobre a relação entre literatura e pintura, a fim de entender os seus limites epossibilidades. Vale salientar que essa discussão é fruto de uma pesquisa de doutoramento eque a metodologia que orienta a escrita do texto é a pesquisa bibliográfica a partir da qual foipossível entender questões importantes relacionadas ao questionamento inicial. Acontribuição de Guimarães (2018), Gonçalves (1997) e Ribeiro (1993) foram essenciais nesseprocesso de pesquisa e, consequentemente, descoberta. Por fim, torna-se importante ressaltarque todas as artes detêm o poder de representar as experiências humanas, contudo, a partir dedistintos suportes e das possibilidades que lhe são inerentes.
FUEL PROPERTIES OF BIODIESELS FROM VEGETABLE OIL FROM YELLOW OLEANDER ( Thevetia peruviana) SEEDS AND PORK LARD FROM PIG (SUS DOMESTICUS)
Authors: Dallatu Y.A. , Gimba C. E.
Published: August 2022

In this study, oil was extracted from yellow oleander ( thevetia peruviana) seeds and pork lard rendered from pig (Sus domesticus) fat, and their yield determined as 64.7% and 85.4% respectively. The fuel properties of the yellow oleander seed oil (YO) and the pork lard (PL) were assessed following the ASTM standard methods, and found to have high flash points of 192 oC and 165 oC, calorific values of 13.79 MJ/Kg and 12.02 MJ/kg respectively. The GC-MS result showed about 80% saturated/ monounsaturated fatty acids in both YO and PL, signifying high potential for biodiesel production. Biodiesels were prepared from the YO and PL using the base- catalyzed transesterification method. The yield was above 96% for yellow oleander methyl ester (YOME) and 85% for pig lard methyl ester (PLME) at the optimum condition of 60oC, for 60 minutes with 1 % (wt) KOH catalyst. There was similarity in fatty acid distribution in both YOME and PLME, with Oleic acid as high as 57.84%, palmitic acid (15.56% to18.07%), stearic acid was in the range of 15.98 % to 15. 65%, which placed them as better substitutes for fossil diesel. The fuel properties obtained indicated that yellow Oleander seed oil and pork lard can be used as alternative feedstock for biodiesel production. Methyl esters of yellow Oleander seed oil and pork lard showed fuel property values close to the ASTM standards for biodiesel.
ELECTROCHEMICAL AND COMPUTATIONAL STUDY OF CORROSION INHIBITION OF MILD STEEL USING CEFUROXIME DRUG AS AN INHIBITOR.
Authors: Abiola B. A. , Gimba C. E. , Shallangwa G.A. , Dallatu Y. A , Ikpi M. E.
Published: August 2022

The corrosion inhibition behavior of cefuroxime was investigated on mild steel in 2 M H2SO4 solution using electron impedance spectroscopy measurement and Quantum chemical studies. The inhibitive effects of the studied compound increase with increasing concentration and the study revealed that cefuroxime is a mixed-type corrosion inhibitor and the Quantum chemical studies corroborate experimental results.
Crisis del Estado de bienestar
Authors: Pérez Palma Wendy Johana
Published: August 2022

OBJETIVO: analizar la crisis del bienestar y explicar las causas en las cuales el Estado de bienestar, entro en crisis como consecuencias de los pocos compensadores sociales, a pesar de un Estado que interviene como regulador y benefactor de la vida económica y en la busca de la armoniosa convivencia, en el ámbito social, económico y político.  MÉTODO: deductivo, científico y analítico, debido a que el desarrollo del marco teórico partió de lo general a lo particular, conociendo diversos elementos del fenómeno a estudiar para llegar a entender el mismo.  RESULTADOS: el estudio de la crisis del Estado de bienestar proporciona información para estudiosos del derecho que quieran conocer sobre este tipo de sistema de gobierno, como un fuente de información  CONCLUSIÓN: el modelo de  Estado de bienestar cae en crisis cuando  el Estado como el mayor benefactor  no tiene los suficientes compensadores sociales, por ende debe ser compatible con el sistema capitalista y el socialista para  desarrollar políticas que permitan el cumplimiento de sus fines como lo es el bien común sin que hayan desequilibrios económicos como alza de precios e inflación, para que sus habitantes no emigren a otros países por falta de recursos materiales.
Militarización del Estado
Authors: Cordón Vargas Víctor Hugo
Published: August 2022

OBJETIVO: determinar los aspectos, características de la militarización del Estado. MÉTODO: mediante la lectura e averiguación de diversos libros sobre militarización del Estado por qué se involucran y que efectos desarrolla en el ámbito político. RESULTADOS: a lo largo de los últimos quince años, acudiendo a una multiplicación sin antecedente de regímenes militares, a una supresión progresiva de los gobiernos "democráticos representativos" y a una irrupción masiva corporal de oficiales en la escena política. Al costado de territorios gobernados a menudo por militares como la situación de Bolivia y Centroamérica, opuesto a otros que, tenían largas tradiciones cívicas. CONCLUSIÓN: es factible que dicha crisis únicamente tomará maneras radicales en sectores minoritarios y marginales de la jerarquía militar. En el futuro próximo, la mayor parte de los oficiales de carrera seguirá eligiendo entre el semipopulismo militar, la evacuación parcial de la escena política o la instauración de un Estado de dominante coercitivo.
Micro:bit as a new technology in education in primary schools
Authors: Simović Vasilija , Vesković Milan , Purenović Jelena ,   University of Kragujevac, Faculty od Technical Sciences
Published: August 2022

Micro:bit as a new technology in education provides the solution for the gap between abstract and often incomprehensible frontal teachings and new wave of practical teaching, which forces individualization and independence of students. At the same time, by teaching students digital-technical literacy in a fun way, it increases interest and strengthens students’ will for the subject. The advantages of this device are not only oriented towards the students, but also towards the teachers and the entire school system. Modernization and the introduction of new approaches are paving the way for the schools of the future both in Serbia and around the world. The paper shows theoretical part on the basics of micro:bit, device layout, its specification and programming languages in which it is performed as well as the practical part.
Integration of virtual instrumentation in marine electrical engineering education
Authors:   University of Montenegro, Faculty of Maritime Studies Kotor, Knežević Ilija , Koprivica Branko , Dlabač Tatijana , Marvučić Nikola , Milovanović Alenka ,   University of Kragujevac, Faculty of Technical Sciences, Serbia
Published: August 2022

Virtual instruments have wide application and they are used not only for measurements and control but also as an excellent tool in engineering education. They can be utilized in real and actual labor-atories. They present huge support for individual learning and distance learning. This paper presents an example of using virtual instruments in the education of future Electro Technical Officers, actually the present students enrolled in the study program of Marine Electrical Engineering at Faculty of Maritime Studies Kotor, University of Montenegro. With the aim of promoting practical exercises for the subject Ship’s Measurements as a part of the undergraduate study of Marine Electrical Engineering, the paper proposes examples of laboratory exercises with belonging schemes of connection and experimental set up.
Use of electronic design automation tools in computer engineering courses
Authors:   University of Kragujevac, Faculty od Technical Sciences, Serbia, Knežević Mihailo
Published: August 2022

Electronic Design Automation (EDA) tools are widely used semiconductor industry to support the ever-growing complexity of computer design, and they became an important skill which is required by computer engineers. In this paper, we present the usage of the EDA Playground web platform for practical exercise in the Digital systems design course at the computer engineering department of the Faculty of technical sciences. This platform was used in process of designing and testing of program counter register of a simple processor.
Promoviendo el liderazgo climático-corporativo: Aprendizajes desde la iniciativa Science Based Targets en México
Authors: Nolasco Aline , Ruiz Avelina , Pereyra Saúl , Ramírez Ana Alejandra , Zimbrón Erick , Arvide Iván , Morales Kermith , Pesqueira Luli , Escobar Ninel , Guzmán Paola Villalón , Vázquez Victoria Amany
Published: August 2022

Esta publicación refleja el trabajo realizado por el consorcio SBT en México, conformado por WRI México, WWF México, Pacto Mundial México, CDP LATAM y South Pole, con el apoyo del programa México-UK PACT (Partnering for Accelerated Climate Transitions) del Gobierno del Reino Unido, para aumentar la ambición climática en el sector privado en México, utilizando la iniciativa Objetivos basados en Ciencia (SBTi) como referencia internacional y transmitiendo el potencial de integrarla como herramienta complementaria a los instrumentos regulatorios y de mercado destinados a reducir las emisiones GEI.
Standardisation of Various Processes in the Preparation of Kousheyashma Bhasma Accounting its Clinical Utility
Authors: Prabhash Nileena J , Anand S
Published: August 2022

Asbestos, one among the inosilicate group of minerals is listed under the Sikatha varga (Silicate compounds) in the Rasasastra treatises, in the name, Kousheyashma. Though the asbestos is vastly used for commercial purposes, it is not found to be used in clinical practices owing to its toxicity. But in Ayurveda, Acharyas have opined that by the judicious usage, even the poison can be bestowed medicinal value. And hence, after undergoing appropriate pharmaceutical processes as mentioned in the treatises, Kousheyashma can be effectively administered in Bhasma (after incineration) form in the treatment of various ailments like leucorrhoea, painful micturition, inflammation of urinary tract, menorrhagia.

In this work, an attempt is made to expose the hidden medicinal values of asbestos by converting it into Bhasma form. Kousheyashma is a very cost effective and potent medicine which could be effectively used by Ayurvedic practitioners. In the present work, conversion of raw Kousheyashma into medicinal Bhasma form is discussed elaborately. The processes involved includes Sodhana and Marana of Kousheyashma. The liquid media used for the purpose of Sodhana was Gomutra and for Marana purpose, Harithamanjari swarasa was used. Three Putas were required to obtain Kousheyashma bhasma which satisfied the Bhasma pareekshas.