bluuebunny/crossref_metadata_2025 huggingface dataset:
Coiling During Male-Male Combat in Snakes: Differences Between Vipers and Other Groups, and Between Constrictors and Non-Constrictors
Authors: Lock Ishmel J. , Zalewski Kaitlyn E. , Senter Philip J.
Published: March 2023

During male-male combat (MMC) in snakes, combatants often coil around each other. To determine whether there are differences in this behavior between different snake groups, we examined video footage of 100 instances of MMC in 49 snake species from six families. Results show that in Viperidae, MMC involves smaller numbers of loops than in the other three clades considered here (Pythonidae+Loxocemidae, Elapidae+Pseudoxyrhophiidae, and Colubridae). In Viperidae, coiling also seems to be an accidental result of other movements and does not involve coil tightening, whereas in the other three clades it appears to be deliberate and is often enhanced by coil tightening. The duration of coiling is shorter in the clade Elapidae+Pseudoxyrhophiidae (most of which are non-constrictors) and Viperidae (non-constrictors) than it is in Colubridae (many of which are constrictors) and the clade Pythonidae+Loxocemidae (constrictors). It is also shorter in non-constricting colubrids than in constricting colubrids, although the number of loops does not differ between the two groups. We conclude that coiling is of lesser importance for MMC in Viperidae than in the other three clades, and that maintaining loops during MMC is of lesser importance in non-constricting groups than in constrictors. These results show that differences in the amount of coiling during MMC in snakes follow phylogenetic lines. The videos used in this study were collected from social media and demonstrate that social media can be useful in collecting data for scientific studies.
Filosofia de la robotica
Authors: Gonzalez Arocha Jorge
Published: March 2023

Filosofia de la robotica
Security of the information environment of participants in the educational process
Authors: Podlinyayeva Oksana , Sytnyk Larysa
Published: March 2023

The article is devoted to a review of the main recommendations for working with information in wartime conditions. The basis of the article is the practical experience of consuming information from various media sources. The main tools for checking information messages regarding the presence of elements of media manipulation in them are presented.
Intercultural communication and the development of language personality
Authors: Voronova Yelizaveta , Gerasymchuk Tatiana , Gubareva Olga
Published: March 2023

The article emphasises that intercultural communication is currently becoming the subject of interest of philosophers and pedagogues, psychologists, lingua didactists and methodologist. The approaches to the problem of the formation and development of intercultural communication are shown. The article shows that Intercultural communication occurs when communication partners realize the fact of each other's "foreignness”.
Choice of surgical method for treatment of ameloblastoma of jaws depending on the histological subtype of the tumor
Authors: Sagyndyk Khassan , Kurashev Amangeldy , Sugurbayev Adil
Published: March 2023

In maxillofacial surgery, the generally accepted method of treating ameloblastoma (malignancy 1.5-4%) is a radical removal of the formation with a resection of the lower jaw within healthy tissues. However, given the relatively favorable clinical course of ameloblastoma of the first and second groups of AB, we believe that radicalism should be reasonably sufficient in order not to disable the patient.
Особливості окисної модифікації білків еякуляту інфертильних чоловіків за умови наявності/відсутності антитіл до токсокар
Authors: Воронцова Лоліта , Кенійз Сергій , Коваленко Вікторія
Published: March 2023

Погіршення якісних параметрів еякуляту є відображенням впливу пошкоджуючих факторів зовнішнього середовища, і одним із таких факторів, здатних викликати тератогенні зміни у чоловіків, є токсакароз. Метою роботи було дослідити особливості змін окисної модифікації білків в екстракті гомогенату еякуляту у чоловіків з порушенням репродуктивної функції за наявності/відсутності антитіл до токсокар. У статті висвітлено дані дослідження окисної модифікації білків в еякуляті та показників клітинних факторів вродженого імунітету 89 чоловіків, які були розділені на п'ять груп, залежно від рівня ДНК сперматозоїдів та наявності/відсутності токсокарозної інвазії. Згідно з отриманими даними, встановлено, що у пацієнтів усіх досліджуваних груп спостерігалося збільшення рівня ОМБ в еякуляті різної інтенсивності, залежно від особливостей пошкоджуючого фактору. Так, у пацієнтів 3-ї та 4-ї груп (з наявністю антитіл до токсокар) незначне збільшення ОМБ пов'язане з формуванням гельмінтами захисту проти дії пошкоджуючих їх факторів, таких як ОМБ та фагоцитоз, що підтверджується незавершеністю фагоцитозу на тлі дефіциту функціонально-метаболічного резерву. У пацієнтів 2-ї та 5-ї групи (з відсутністю антитіл до токсокар) високі значення ОМБ вказують лише на вплив факторів навколишнього середовища (промислові політанти в атмосферному повітрі), багато з яких можуть самі бути пусковим механізмом для розвитку та підтримки високого рівня. ОМБ.
Research of an oscillatory electro-mechanical system consisting of two DC motors
Authors: Podlesny Sergey
Published: March 2023

An electromechanical system (EMS) is considered, the oscillations of which are excited by two DC electric motors. The equations of EMS motion in the Lagrange-Maxwell form are compiled. Numerical integration of the system of equations for specific parameters has been carried out. Graphs of dependence of platform oscillations on applied voltage. The conditions for oscillations of the platform with small amplitudes are obtained.
Психологія розвитку і фізичне виховання
Authors: Пічурін Валерій , Умеренко Віктор , Дутко Тарас
Published: March 2023

Фізичне виховання є однією із сфер життєдіяльності людини, яка здійснює суттєвий вплив на розвиток особистості. Водночас, відповідно спрямованих концепцій і педагогічних технологій у цій сфері явно бракує. Їх розробка повинна проводитись з врахуванням теоретичних засад сучасної психології розвитку. Дослідження спрямоване на окреслення теоретичних передумов для розробки педагогічних концепцій і технологій щодо розвитку особистості у сфері фізичного виховання.
Ethical Football
Authors: Curry Dale
Published: March 2023

Using a sports metaphor (U.S. football), this learning activity provides specific examples pertaining to the five major responsibility domains of the Standards for Practice of the Association for Child and Youth Care Practice. Some of the examples illustrate constructive ways of adhering to the standards while others are questionable and may violate some of the standards.
Energy Harvesting System Using Thermoelectric Generators and Heat Pipes: A Review
Authors: Monga Deepak , Baradia Gagan , Nangia Siddharth , Mishra Rohit
Published: March 2023

Environmental Protection issues and the global energy crisis worldwide have caused energy recovery techniques to come into play. One of the potential areas for this energy recovery is engine exhaust as huge amount of energy is lost in form of heat through exhaust gases. With appropriate recovery methods executed, considerable increase in efficiency of engine is obtained. For this aim, thermoelectric generators is proposed as the optimum solution as its solid state working doesn’t have any moving parts or gas emissions and directly converts exhaust heat into electricity. Another promising technique to recover waste heat is usage of heat pipes. Heat pipes being excellent thermal conductors combine phase transition of fluid (typically water) to achieve efficient heat transfer. The present study focuses on various advancements achieved in the heat recovery from engine exhaust using thermoelectric generators and heat pipes and their combinations. The results of various researches depict the enormous potential of such technologies in saving non renewable energy sources and reducing environmental degradation.
Arduino Based Gestures to Speech Conversion System
Authors: Mishra Shubham , Takkar Saurabh , Garg Tripti , Kaur Amanpreet
Published: March 2023

Around 5% of the Indian population has difficulty in speaking or cannot speak. So, sign language is a method of non-verbal communication that is used by deaf and dumb people. Normal people do not learn sign language. The problem arises here and this problem becomes a barrier between them. The past implementation of this project involved using image processing concept and accelerometer. But the drawback of these implementations are projects were non portable and too expensive. In this research paper, we have suggested a wearable glove for people who face difficulty in communicating verbally due to various different reasons (be it deaf or dumb), so that with the possession of this device, they can exhibit their basic requirements via their gestures and those gestures will be converted to speech for the hearer to understand what is he or she trying to say.
Wind Energy Potential at Different Cities of Assam Using Statistical Models
Authors: Hussain Md Zakir , Roy Dwijendra Kumar , Khan Sabah , Sharma Pranjal Kumar
Published: March 2023

Energy is an important role in any country’s economy and infrastructure growth. Wind energy is renewable form of energy and environment friendly compared to conventional energy resources that pollute the environment. A proper analysis of wind speed data is an important parameter to estimate wind energy potential at a particular site. This article investigates the wind energy potential at three different cities of Assam viz. Dibrugarh, Guwahati and Tezpur of Assam, India by using statistical methods over a period of eight years from 2010-2017. The speed data revealed that the mean wind speed of Tezpur city was lower in-comparison to Dibrugarh and Guwahati. The average wind speed of Dibrugarh is highest i.e. 5.398 km/hr followed by Guwahati city 4.628 km/hr. The average monthly wind data shows that the mean wind speed for city Dibrugarh is highest in the month of April as 7.8625 km/hr. The mean test analysis between Dibrugarh and Guwahati shows that the mean speed different between two cities is significant as P0.05. Weibull probability distribution function revealed that higher occurrence of probability at higher wind velocities for each city. The probability distribution plot shows that the 99% probability of occurance of Wind speed is 7.45093 km/hr for city Dibrugarh. The data also revealed that the average wind power density for the city Dibrugarh is 0.897451 W/m2 followed by city Guwahati 0.578349 W/m2. The above analysis shows that there is a possibility of wind power generation in the city of Dibrugarh followed by city Guwahati at these low wind speed region and the vertical axis wind turbines can be installed for power generation in cities Dibrugarh and Guwahati.
Design, Development and Fabrication of a Go-Kart
Authors: Jain P. K. , Yadav Pankaj , Natu Aditya , Mandal Mukesh Kumar
Published: March 2023

Go-Karts are widely used across the world for recreational or professional racing purposes. The following paper includes the whole designing methodology of the various components of a go kart, designed and manufactured by students of Delhi Technological University. The go-kart was designed conforming with standard principles and considering all major factors and arameters for design and simulation, developing a fully failure analyzed ergonomic go-kart, powered by an internal combustion engine of capacity 125cc. Detailed calculations were done for all the components and 3-d modelling and simulation were performed on professional softwares. The go kart was fabricated following the industrial norms
Computational Investigation and Optimization of Cooling System Used For Hub Motors
Authors: Swaroop V. V. Gagan , Vohra Minesh , Reddy Naga Sesha , Kondem Venu
Published: March 2023

The main aim of doing this project is to fix the strategy to provide the cooling for a hub motor so that there will be no effect on the copper windings of the motor while operating under variable load conditions. This works is carried out because of the fact that if the motor reaches the higher limits of its operating temperatures then the winding will get heated up and also there would be possibility of damage of the motor. So basically, we have proposed a fin attached casing from which the 30 numbers of fins are protrudes from the outer surface of hub motor and these fins are mounter in the open atmospheric condition considering the convectional heat transfer as low as possible based on the flow velocity of air and that is 5 W/m2K. Also, this value had been justified based on analytical approach followed in the study in order to find out the efficiency of the fins installed. We chose the casing material as stainless steel and fin material as aluminum because they have good thermal conductivity. The Computational investigation is carried out using ANSYS Module and the parameters i.e. Temperature distribution, Total heat flux and Directional heat flux were investigated based on the optimization technique followed based on two models that are a) Hub-Motor with Fin b) Hub-Motor without Fin. From the numerical investigation we achieved the Fin efficiency as 99%, followed by Heat dissipation from fin is 232.12 W and Fin effectiveness as 0.032 and hence results into an efficient model for the better cooling of the hub-motors of chosen dimension.
Mechanical Analysis of Composite with Reinforcement Sawdust and Palm Kernel Shells
Authors: Giri Chandra Shekher , Singh Utkarsh
Published: March 2023

In this study, the sawdust-palm kernel shellcrete composite was analysed. The sawdust-palm kernel shellcrete composite issue has been solved. Sawdust and palm kernel shells in weight varied from 100:0 to 90:10, 80:20 to 70:30, and 60:40 to 50:50 in composition. Urea formaldehyde (20% of the oven dry weight of agricultural waste) was used as a test binder. There were 300 m particles in the agricultural waste used in the process. A high water absorption capacity of aggregate materials and the need to build lightweight concrete with sufficient workability, strength, and durability led to the selection of these specific ratios of water to cement. In terms of yield strength (4.47 N/mm2), tensile strength (7.75 N/mm2), modulus of elasticity (2603 n/mm2), modulus of rupture (16.67 n/mm2), internal bond strength (0.54), thickness swelling (10.30 percent), water absorption (18.90 percent), and density (996.18 kg/m3), sawdust and palm kernel compositions performed best.
Impact of Work Load and Stress in Call Center Employees: Evidence from Call Center Employees
Authors: Chaudhary Sana , Nasir Nadia , Ur Rahman Saif , Masood Sheikh Salman
Published: March 2023

The study investigates the Impact of Workload and Technologies on the Performance of Call Centre Employees." Single-way ANOVA is used for analysis. In this study, we use questionnaires to gather data on the variables Gender, Age Group (In Years), Education, Experience (In Yrs.), Daily Practice, Relational Uncertainty, Relational Distance, Opportunism, and Inter-partner incompatibility. The outcomes of the study confirm that the study observe that the significant and positive effect of workload and technologies on the performance of Call Centre Employees. It implies that when departments use the results of rational uncertainty, there are considerable differences between them. The result shows that there is positive relationship between number of hours use mobile and online libraries. However, the finding exhibit that a positive and significant associations exist between no. of hour mobile use and mobile distract. Moreover, the regression result confirms that Rational Distance, Number of hours, Age, inter partner relationship and opportunism have significant effect on job satisfaction. Furth more, the coefficient value of Age has significant effect on Inter-partner incompatibility.  While the Relational Distance has insignificant effect opportunity to get a better job in this company.
The didactic function of narratives: Teacher discussions on the use of challenging, engaging, unifying, and complementing narratives in the history classroom
Authors:   Dalarna University, Berg Mikael , Persson Anders ,   Dalarna University
Published: March 2023

At a time when society is characterised by a polarised social climate, it is teachers who need to contribute to a nuanced orientation of the world. This article looks at the ways historical narratives can be used as a collective didactic resource in the historical-cultural context of contemporary society. Its purpose is to analyse the didactic function that underlies historical narratives in relation to students’ understanding of society. Our study builds on three focus group interviews with five upper-secondary-school teachers of history and social studies. The method used is the stimulated-recall interview whereby teachers talk about various teaching situations. Four uses of historical narratives were identified, each with its own didactic function. The first is the use of the “challenging” narrative, the function of which is to disrupt and realign students’ understanding of society. The second is the use of the “engaging” narrative: its function is to involve and activate students in their present understanding of society. The third is the use of the “unifying” narrative, the function of which is to bridge contradictions within society. The fourth and final narrative is the “complementing” narrative, whose function it is to broaden and open students’ understanding of society. To address students in terms of their present understanding of society, teachers employ these four narratives as didactic resources. In such a way, these uses of historical narratives tie in with the teachers’ overall aim to contribute an alternative perspective to students’ current understanding of society. As such, the results reveal the general theoretical knowledge teachers have relating to their profession.
The molecular mechanism of glycation. Harmful effects of advanced glycation end products (AGEs) on the skin
Authors:   Faculty of Rehabilitation, University of Physical Education in Cracow, Buszka Agata
Published: March 2023

Non-enzymatic glycosylation, commonly known as glycation, is a physiological process that may be intensified by endogenous and exogenous factors. The accumulation of advanced glycation end products (AGEs) effects negatively the aging process of the skin, modifying the biochemical, structural, and morphological properties of the skin. The study aimed to describe the mechanisms and effects of AGEs on the cells of the epidermis, dermis, vascular endothelium, as well as extracellular matrix proteins and intercellular lipids. Scientific research is being conducted to find substances that effectively inhibit the glycation process and the accompanying glycooxidation.
Skin pigmentation - complications and side effects
Authors:   Faculty of Medicine, Katowice Business University, Godlewska Nina , Ruprich Małgorzata ,   Faculty of Medicine, Katowice Business University
Published: March 2023

The number of people who decide to get a tattoo or permanent makeup is increasing every year. The constantly growing popularity of skin pigmentation treatments results in more postoperative complications and side effects of these treatments. The study aimed to present and analyze, based on the available literature, the most common complications after skin pigmentation procedures and to indicate their causes. Appropriate training of people performing skin pigmentation and education of clients increases the safety of the procedure.
BACTERIAL ASSOCIATED WITH SWIMMING POOL WATER IN BENIN CITY, NIGERIA
Authors: Okoruwa A. I , Isibor C,N , Ukpene A. O.
Published: March 2023

Swimming pools are man-made recreational water bodies.  These water bodies are supposed to be hygienic   but due to human activities, they have been considered as sources of infections. The objective of this study was to ascertain the bacterial isolates found in some swimming pools in Benin City. Five swimming pools in Benin City identified as A, B, C, D and E were studied. A total of 15 samples (three from each pool) were collected in duplicates before and after the maximum bather’s load, and after the water change. Samples were analysed bacteriologically using standard methods. A total of 51 organisms were isolated with Staphylococcus epidermidis having a prevalence of 27.5 %/, Escherichia coli; 15.7 %, Staphylococcus aureus; 15.7 %, Enterobacter aerugenes; 13.7 %, Klebsiella aerogenes; 13.7 %, Pseudomonas aeruginosa; 5.9 %, Klebsiella pneumonia; 3.2% and Streptococcus faecalis; 3.2%. The mean viable colony counts of 1.60x 102 /ml, 7.33 x 102 /ml, 9.00 x 102 /ml, 1.60 x 102 /ml and 7.30 x 102 /ml at 37 oC were obtained from A, B, C, D and E pools respectively.  It was observed that water from swimming pools B, C and E were contaminated with mean viable counts exceeding the recommended 200 colony counts/ml and detection of Escherichia coli in 100 ml. The high bacterial load and the isolation of pathogenic bacteria from the pools demonstrate the need for pool health authorities to improve surveillance, improve pool decontamination standards, and educate swimmers on hygiene before entering pools. This study emphasis the need for proper hygienic maintenance of swimming pools and the need for a bacteriological standard to be drawn up for swimming pools in Nigeria.
Evaluation of Irrigation Water Application Techniques at Omo Kuraz Left Bank Canal, SNNPRE, Ethiopia
Authors: Shibeshi Firdawek Zewudu , Mogiso Tamene Mojira , Eniyew Yilkal Zewude
Published: March 2023

Water loss from furrows can be due to runoff, seepage and deep percolation which may cause yield reduction. This study focuses on the evaluation of irrigation water application techniques and employed experimental observation which included 30 test observations using the bund, cut-off, cut-back, surge, and portable structure techniques. The experiments were carried out in two blocks; block A with 50 m furrow length and that of block B with 100 m furrow length. The experimental design was a randomized complete block design with three replications. The analysis was done using surface irrigation evaluation model and SAS software package. The results of the study showed that at block A, highest application efficiency of 87.0% was obtained with surge flow and followed to this cut-back recorded 86.6%; whereas the lowest application efficiency of 75.00% was obtain by bund technique. Storage efficiency of surge and cut-back recorded 99.00%. The lowest was obtained by bund (88.9%). The distribution uniformity of surge was highest (84.1%). whereas bund technique gave 71.0% of lowest distribution efficiency. At block B, surge registered the highest application efficiency and distribution uniformity of 66.0% and 59.57% whereas; bund technique records the lowest application efficiency of 60%. The surge and cut-back were more efficient in the field recovery of storage requirement resulted above 99.0%. The statistical analyzed results showed that mean application efficiency of 75.69% was obtained using the surge technique; whereas the lowest application efficiency of 70.0% was obtained by the bund. The use of the surge technique reduces irrigation water loss from 30.0% to 24.3% compared to the local bund technique. This is due to the surge performed better in terms of advance rate and efficient moisture content. With the surge, the highest mean DU of 68.07 % was obtained, while the bund technique had the lowest DU (58.32%). Therefore, adoption of the surge is a promising water application and management practice in sugar cane plantation at Omo Kuraz.
Effect of Training Platform on Interest and Academic Performance in Technical Education among Technical College Students in Ondo-State, Nigeria
Authors: Vincent Deborah Ahuoiza
Published: March 2023

Training platform is closely associated to e-learning. Training platforms are primarily focused on the delivery of online learning. It serves as a platform for a variety of uses, including asynchronous and synchronous methods of teaching and learning. This study investigated the effect of training platform instruction on students’ interest and academic performance in technical education among technical college students. The study was conducted in Ondo State and applied a quasi-experimental methodology. The study involved 284 participants, including 232 male and 52 female students from two technical colleges in Ondo State. For effective investigation, training technical education interest rating (TEIR) and technical education academic performance (TEAP) instrument were faces verified by 3 experts. To analyze the null hypotheses that served as the study guiding principles and to provide answers to the research questions, the collected data were analyzed using the mean and analysis of variance (ANOVA). The results showed that students’ interest and academic performance are enhanced when technical education is taught using a training platform method than the conventional instructional method. The study also finds a significant variation in the academic performance of the students who were taught technical education via the training platform instructional method. Based on these findings, the study concluded that the training platform instructional approach improves students' academic performance and interest more than the traditional approach in technical education. Also, male students had a stronger interest in technical education than female students who are taught technical education using the training platform instructional approach, and female students in technical institutions outperformed male students academically when utilizing the training platform. The study therefore recommended that technical colleges should take into consideration the use of training platform as an addition to the conventional instructional practices to enhance the quality of learning and teaching.
Effects of 3-Dimensional Model of Human Digestive System on Students Performance in Biology Concept in Nigeria
Authors: Babalola Ebenezer Omolafe , Ekunola Gbadebo Temitope , Omolafe Eyiyemi Veronica
Published: March 2023

This study examined the effects of 3D model of human digestive system (3-DMHDS) on senior secondary school students’ performance in Human digestive system in Ilorin, Kwara State, Nigeria. The research adopted a post-test, control group, non-randomized, and non-equivalent quasi-experimental research design. Two intact classes from two secondary schools were randomly sampled based on institutional ownership.  The instruments used were Lesson Note (LN), Biology Performance Test (BPT) for data gathering, and 3D-model of human digestive system (3-DMHDS) as the treatment instrument. The reliability coefficient of BPT was determined using the Pearson product-moment correlation and was found to be 0.84. Three research questions and three research hypotheses were formulated for the study. The mean score was used to answer the research questions while an independent sampled t-test at 0.05 level of significant was used to test the hypotheses. Findings show that 3-DMHDS significantly influence the understanding of the human digestive system among students irrespective of their gender and institutional ownership. It was recommended among others that Biology teachers and students should be motivated to use the 3D model for the teaching and learning of the human digestive system among other biology topics.
The Effect of Project Based Learning Model on Creative Thinking Ability in Biology Learning
Authors: Illahi Putri Cahaya , Fitri Rahmadhani , Arsih Fitri
Published: March 2023

This research aims to gain insights into the influence of the Project-based learning model on the enhancement of creative thinking skills among high school students in the subject of biology. The low creative thinking skills of high school students and the teacher-centered learning model, which typically involves lectures, have prompted the need for a more active learning process that involves students in the learning process. The Project-based learning model has been identified as a suitable approach for this purpose. To conduct the research, an expost facto method was employed, involving a review of relevant literature on the topic. The findings of the study indicate that the Project-based learning model has a positive impact on the creative thinking skills of high school students, as evidenced by an increase in the average scores of the students. This research adds to the body of knowledge on effective learning methods and has practical implications for educators seeking to enhance the creative thinking skills of their students. Further research could be conducted to explore the potential of the Project-based learning model in other subjects and at different educational levels. Additionally, it would be valuable to examine the long-term effects of the Project-based learning model on the creative thinking skills of students, as well as its potential to foster other desirable outcomes such as critical thinking and problem-solving skills.
Probability Modeling of Exchange Rate Fluctuation in Nigeria
Authors: S. Adebanjo , P. Sibeate
Published: March 2023

The Naira's value has continued fluctuating in comparison with other currencies due to its depreciation. Because of this fluctuation, returns are difficult to forecast. The core objective of this study is to find a unified probability distribution for modelling the exchange rate in Nigeria and this will contribute immensely to the existing body of knowledge. The continuous nonnegative exchange rate data from 1970 to 2021 was used for this research paper. Previous studies have demonstrated different probability distributions from others in the real sense. Therefore, the selection of appropriate probability distributions is of great importance. This study adopted ten continuous probability distributions. The graph of the probability density function and Chi-square goodness of fit statistics show that the probability distributions fit the exchange rate data. Meanwhile, the log-likelihood value and the AIC show that Fatigue Life (3P) distribution is best done compared with fitted probability models. Therefore, the Fatigue Life (3P) is Nigeria's unified probability distribution for the modelling exchange rate.
Vendor Attraction to Improve the PTM System: A Commentary
Authors: Bin Nafisah Sharafaldeen
Published: March 2023

Advancement in healthcare technology has shaped modern healthcare delivery. Vendors that supply advanced technology are profit-driven, but at the same time their profit is contingent upon awareness of, and acceptability of, their products. Openness to ideas and critique is crucial to improving any existing system, and a proactive approach to advanced technology will be greatly beneficial in improving current practice.
The effect of single plate and double plate application on union and functional results in humeral diaphyseal nonunions
Authors: Durgut Fatih , Ozdemir Ali , Ergin Musa , Güleç Ali , Acar Mehmet Ali
Published: March 2023

In this study, we assessed and compared the outcomes of two different fixation techniques for humeral diaphyseal fracture nonunions. A retrospective evaluation of 22 patients who underwent single-plate and double-plate fixation due to humeral diaphyseal nonunions was conducted. Union rates, union times, and functional outcomes of the patients were assessed. There was no significant difference between single- plate and double-plate fixation in terms of union rates or union times. The double-plate fixation group achieved significantly better functional outcomes. Nerve damage or surgical site infection were not encountered in either group.Due to its considerable effect on stability, double-plate fixation, offers both patients and surgeons confidence in terms of early adaptation to daily life in the postoperative period.
Ulnar lateral digital flap for Dupuytren’s disease of the fifth finger, a technique not be forgotten
Authors: Morrison Canelle Bakota , Gkotsi Antonia , Bahm Jorg , Schuind Frédéric A , El Kazzi Wissam
Published: March 2023

Dupuytren’s disease is a common condition in hand surgery. The fifth finger is frequently affected, pre- senting the highest recurrence rate after surgical treatment. The ulnar lateral-digital flap is used when a skin defect prevents direct closure after fasciectomy of the fifth finger at the level of the MP joint. Our case series comprises of 11 patients undergoing this procedure. Their mean preoperative extension deficit was 52° at the MP joint and 43° at the PIP joint. Full extension of the MP joint and a mean of 8° extension deficit at the PIP joint was achieved with surgery. All patients maintained full extension at the MP joint, with a follow-up of 1 to 3 years. Minor complications were reported. The ulnar lateral digital flap is a simple and reliable alternative when surgically treating Dupuytren’s disease of the fifth finger.
Which design tolerates rotational mismatch better in unicompartmental knee arthroplasty: fixed or mobile bearing?
Authors: Emre Fahri , Kiliç Erden , Kaya Özgür , Uysal Özgür Selim , Çay Nurdan , Erşen Ömer , Bozkurt Murat
Published: March 2023

Unicompartmental knee arthroplasty is an effective method for the treatment of medial compartment osteoarthritis. However, appropriate surgical tech- nique and optimum implant positioning are crucial for a satisfactory outcome. This study aimed to demonstrate the relation between the clinical scores and the alignment of the components in UKA. A total of 182 patients with medial compartment osteoarthritis and treated by UKA between January 2012 and January 2017 were enrolled in this study. Computed tomography (CT) was used to measure the rotation of components. Patients were divided into two groups according to the insert design. These groups were divided into three subgroups according to the angle of the tibia relative to the femur (TFRA) (A): TFRA 0° to 5° either internal or external rotation; (B): TFRA >5° internal rotation, and (C): TFRA >5° external rotation. There was no significant difference between the groups in terms of age, body mass index (BMI) and follow-up period. KSS scores increased as the tibial component rotation (TCR) external rotation increased, but there was no correlation for WOMAC score. (P: 0,039 r: 0,207; P:0,347 r:0,095, respectively) Post-operative KSS and WOMAC scores decreased as TFRA external rotation was increased. (p: 0,001; p:0,001, respectively) No correlation has been observed between femoral component rotation (FCR) internal rotation and post-operative KSS and WOMAC scores. (p: 0,261; p: 0,502, respectively) Any mismatch between the components is better tolerated by mobile-bearing designs compared to fixed-bearing designs. Orthopedic surgeons should take care of rotational mismatch of components, not only the axial alignment of the components.
How does kinesiophobia affect short- and long-term gait parameters in individuals with total knee arthroplasty surgery?
Authors: Deniz Gulnihal , Bilek Furkan , Esmez Omer , Gulkesen Arif
Published: March 2023

Delays in weight transfer due to various fears after Total knee arthroplasty (TKA) surgery negatively affect recovery. Therefore, the presence of kinesiophobia is essential for the success of the treatment. This study was planned to investigate the effects of kinesiophobia on Spatio-temporal parameters in patients who underwent unilateral TKA surgery.

This study was a prospective and cross-sectional study. Seventy patients with TKA were assessed preoperatively in the 1st week (Pre1W) and post- operatively in the 3rd month (Post3M) and 12th month (Post12M). Spatiotemporal parameters were assessed using the Win-Track platform (Medicapteurs Technology, France). The Tampa kinesiophobia scale and Lequesne index were evaluated in all individuals. A significant relationship was found between the Pre1W, Post3M, and Post12M periods and Lequesne Index scores (p<0.01), and this relationship was in favor of improvement. In the Post3M period, kinesiophobia increased compared to the Pre1W period, and kinesiophobia decreased effectively in the Post12M period (p<0.01). The effect of kine-siophobia was evident in the first postoperative period. In the correlation analyses between spatiotemporal para- meters and kinesiophobia, significant negative correlations were observed (p<0.01) in the early postoperative period (Post3M).

Evaluating the effectiveness of kinesiophobia on Spatio-temporal parameters at different time intervals before and after TKA surgery may be necessary for the treatment process.
Financial implications of the renewed reimbursement system of total hip arthroplasty in Belgium
Authors: Rabbachin Noëmi , Lieten Siddhartha , De Smet Vincent , Pien Karen , Scheerlinck Thierry
Published: March 2023

In Belgium, from June 1st 2018 on, a renewed reim- bursement for hip arthroplasty implants was launched and from January 1st 2019 on, a lump sum covering doctors’ fees for “low variable patients”, was introduced. We investigated the impact of both reimbursement systems on the funding of a University Hospital in Belgium. All patients from the UZ Brussel with a severity of illness score of one or two whom had an elective total hip replacement implanted between January 1st and May 31st 2018, were included retrospectively. We compared their invoicing data to those of patients operated in the same period but one year later. Moreover, we simulated the invoicing data of both groups as if they had been operated in the other period. Overall, we compared invoicing data of 41 patients before and 30 after the introduction of both renewed reimbursement systems. After the introduction of both new laws, we noted a loss of funding per patient and per intervention between 46.8€ and 753.5€ for a single room and, between 105.5€ and 1877.7€ for a double room. We noted the highest loss in the subcategory “physicians’ fees”. The renewed reimbursement system is not “budget neutral”. In time, the new system can lead to an optimization of care, but it can also lead to a progressive decrease of funding if future fees and implant reimbursements would be aligned towards the national mean. More- over, we fear the new financing system could affect the quality of care and/or result in the selection of profitable patients.
Derivação nas variações I a III das Variações Goldberg de J. S. Bach
Authors: Petri Ariane
Published: March 2023

O principal objetivo deste trabalho é a identificação e a descrição do trabalho derivativo ao qual uma célula apresentada na Ária, primeiro movimento das Variações Goldberg de J. S. Bach, é submetida nas variações I, II e III. Com ajuda do Modelo de Análise Derivativa (MDA) (Almada 2019; 2020; 2021) mapeamos o comportamento das transformações dentro dos movimentos e entre eles. O trabalho é baseado na hipótese de uma organização organicista da obra, entendendo que as conexões motívicas e derivativas são mais uma estratégia composicional garantindo coesão e diversidade dentro da obra com seus 32 movimentos.
Editorial
Authors: Navia Gabriel
Published: March 2023

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Studies on the families Drynidae, Heloridae and Ismaridae (Insecta: Hymenoptera)
Authors: Carlos Henrique Marchiori
Published: March 2023

Most Dryinidae act as cenobiont ectoparasitoids of Cicadellidae, Delphacidae, Flatidae and Membracidae (Hemiptera). Females of Dryinidae feed on nectar and other sugary solutions and, with the exception of Aphelopinae, they also have a predatory habit and feed on fluids and tissues of their hosts. Only Crovettia Olmi (Aphelopinae) act as polyembryonic endoparasitoids that attack Membracidae nymphs. The Heloridae Family Individuals of this family are solitary, endoparasitoids of Chrysopidae (Neuroptera) larvae, and use the cocoon created by the host to complete their cycle. The Family Ismaridae are primary parasitoids of cicadas (Hemiptera: Cicadellidae). Species of Ismarus act as hyperparasitoids or secondary parasitoids of larvae of Dryinidae (Hymenoptera). This paper aims to seek knowledge about the Drynidae, Heloridae and Ismaridae families. The methodological basis of the present work consists of bibliographical research of scientific articles published in national and international academic scientific journals classified by the Coordination for the Improvement of Higher Education Personnel (CAPES). The search criterion for articles was to prioritize articles that dealt with the topic. Document analysis was used as a data collection method to gather information in theoretical books, theses banks, university dissertations, scientific journals, documents and digital platforms of the University of São Paulo (http://www.usp.br/), Latin American and Caribbean Literature in Health Sciences (http://www.bireme.br/), Scielo (http://www.scielo.org) and University of Brasilia (http://www.bce.unb .br/sistemas/pesq_bibliografica.php).
The carbon footprint of beef production from cull cows finished on sown pastures in the savannas of the Colombian Orinoquía
Authors: Ramírez Restrepo Carlos A. , Vera-Infanzón Raul R. , Rao Idupulapati M.
Published: March 2023

Neotropical savannas of the Colombian Orinoquia are largely dedicated to year-round beef production. There is evidence of sustainable animal production in this savanna environment, but little is known of the links among animal lifetime performance, greenhouse gas emissions, and soil organic carbon (SOC) accumulation at the system level. The main objective of this study was to estimate C footprint of beef production from Brahman (Bos indicus) cull cows finished on contrasting C4-grass-based pastures in the Orinoco basin. Long-term individual variations of liveweights and reproductive performance were used in an Excel® dynamic model to estimate dry matter intake, methane (CH4) emissions and carcass traits, and C footprint at the farm gate. Values from the developed database were computed for cows born and raised on the savanna, bred on Brachiaria decumbens, and later finished on B. humidicola [Scenario (SCE) 1, SCE 2]; B. decumbens (SCE 3); Andropogon gayanus + Melinis minutiflora + Stylosanthes capitata (SCE 4); and A. gayanus + S. capitata (SCE 5) pastures. We estimated C footprints of SCE 1, SCE 3, and SCE 5 using published values of the rates of emission of CH4 and nitrous oxide from the soil, feces, and urine; and accumulation of SOC in soil during the fattening period. The majority of the estimated overall C footprint values at the system level were negative due to expected net SOC accumulation during the fattening period. Depending on the expected quality of management, systems ranged from near equilibrium in C balance to net increases in SOC accumulation.
Tax incentives and regional development: the case of the Fluminense Metal-Mechanical Pole
Authors: Cabral Joilson de Assis , Nestor Melquisedec , Cabral Maria Viviana , Santos Matheus , Lima Paulo Vitor dos Santos
Published: March 2023

This study aimed to calculate the metalworking pole (PMM) importance for the economy of the state of Rio de Janeiro (ERJ), measuring the psychological impacts given by the entry of new companies in the ERJ and estimating the net financial impact (IFL) in Rio de Janeiro's ICMS and FECP collection, in case the differentiated tax treatment (TTD) provided for by Law No. 8.960/2020 becomes effective in the state. By achieving the proposed objectives, the work was also able to respond to the allegations made by the MP/RJ in the direct action of unconstitutionality (ADI) since it estimated the IFL and the impact of the waiver of revenue under this law. The proposed objective was achieved using the input-output method. Among the results, the following stand out: the PMM represents 4.9% of ERJ's GDP; its main linkage is with the industrial sectors; finally, the economic impact of the law increases by approximately R$ 2.1 bi (R$ 2020) in the economy, generating 4,731 occupations and increasing the collection by R$ 118 mi, with the IFL of R$ 4.86 mi. In this way, it is possible to establish the PMM law to the ERJ as an instrument for productive consolidation and deconcentration of economic activity.
The employability of students in undergraduate courses in Information Technology
Authors: Ferreira João Victor , Sousa Reudismam Rolim de
Published: March 2023

Employability can be seen as an individual's ability to start and remain in the professional market. One of the major factors that contribute to employability is the quality of undergraduate courses. In particular, the Information Technology (IT) area usually has a high demand for professionals. Considering the relationship between academia and the professional market, the purpose of this paper is to identify how much undergraduate courses in the IT area contribute to employability. For this purpose, a Survey was applied, with students of an IT course. The Survey received a total of 30 responses, which helped to identify the main characteristics of the relationship between academia and the professional market. As a result, it was identified that i) some subjects in the view of the students are outdated, ii) there is a need to work with modern programming languages, iii) there is a need to analyze the classes offered by the courses, in order to align them with aspects worked on in the professional market, iv) the IT course influences employability, and v) the students are satisfied with their course choice.
Triterpenes, steroids and phenolic isolated from Minquartia guianensis Aubl. (Coulaceae) and antibacterial activity
Authors: Alexandre Andrei da Silva , Fachin-Espinar Maria Teresa , Nunez Cecilia Veronica
Published: March 2023

This work aimed to carry out a chemical study of Minquartia guianensis branches and leaves extracts (Coulaceae) and to evaluate their antibacterial potential. The collection of plant material was carried out at Reserva Ducke, Manaus, Amazonas. The plant material was dried, ground, and extracted with hexane (Hex) and methanol (MeOH). The extracts obtained were submitted to chromatographic analysis and showed characteristics mainly of terpenes and phenolics. The chemical fractionation of branches methanol extract allowed the isolation of the triterpenes: lupen-3-one, β-amyrone, lupeol, β-amyrin; the steroids: β-sitosterol and stigmasterol, and a phenolic derivative: methyl gallate. From the leaf’s methanol extract, the triterpene: taraxerol was identified. These same methanol extracts were active against gram-positive bacteria: Staphylococcus aureus and gram-negative bacteria: Aeromonas hydrophila and Pseudomonas fluorescens, with an inhibition percentage of 63 to 70%. Based on the results, this work contributed to the chemical and biological knowledge of the species M. guianensis, this being the first report of the substances: β-amyrin, β-amyrone and methyl gallate for the Coulaceae family.
Maintenance and inspection applied to photovoltaic solar plant, a case study at UFERSA-Caraúbas
Authors: Vieira Rafael Marinho , Crisóstomo Daniel Carlos de Carvalho
Published: March 2023

The growing expansion of photovoltaic systems results in the need to perform maintenance routines and inspections in order to ensure that components and equipment function as expected, that is, normal productivity, operate with low risks to health, environment and safety. In this work, an analysis was carried out in the photovoltaic solar plant of UFERSA-Caraúbas, which included visual inspection and qualitative thermographic analysis, where the first one had the purpose of verifying the components and the photovoltaic arrangement itself, evidencing the factors considered abnormal; and the second, to recognize possible thermal anomalies present in the PV system and/or its components. Finally, it was possible to verify that the system in question has a considerable amount of modules with broken surface glass, in addition to the relevant presence of dirt on their surfaces. The thermographic inspection showed that the modules together with the inverters remain within the limit range determined by the manufacturers.