bluuebunny/crossref_metadata_2025 huggingface dataset:
Mechanical Percussion Devices: A Survey of Practice Patterns Among Healthcare Professionals
Authors: Cheatham Scott W , Baker Russell T , Behm David G , Stull Kyle , Kolber Morey J
Published: June 2021

Background

Mechanical percussion devices have become popular among sports medicine professionals. These devices provide a similar effect as manual percussion or tapotement used in therapeutic massage. To date, there are few published studies or evidence-based guidelines for these devices. There is a need to understand what professionals believe about this technology and how they use these devices in clinical practice.

Purpose

To survey and document the knowledge, clinical application methods, and use of mechanical percussion devices among healthcare professionals in the United States.

Design

Cross-sectional survey study.

Methods

A 25 question online survey was emailed to members of the National Athletic Trainers Association, Academy of Orthopedic Physical Therapy, and American Academy of Sports Physical Therapy.

Results

Four hundred twenty-five professionals completed the survey. Most professionals (92%, n=391) used devices from two manufacturers: Hyperice® and Theragun®. Seventy-seven percent directed clients to manufacturer and generic websites (n=329) to purchase devices. Most respondents used a medium and low device speed setting for pre- and post-exercise (62%, n=185), pain modulation (59%, n=253), and myofascial mobility (52%, n=222). A large proportion of respondents preferred a total treatment time between 30 seconds and three minutes (36-48%, n=153-204) or three to five minutes (18-22%, n=76-93). Most respondents (54-69%, n=229-293) believed that mechanical percussion increases local blood flow, modulates pain, enhances myofascial mobility, and reduces myofascial restrictions. Most respondents (72%, n=305) were influenced by other colleagues to use these devices. Sixty-six percent used patient reported outcomes (n=280) to document treatment efficacy. Live instruction was the most common mode of education (79%, n=334).

Conclusion

These results are a starting point for future research and provide insight into how professionals use mechanical percussion devices. This survey also highlights the existing gap between research and practice. Future research should examine the efficacy of this technology and determine consensus-based guidelines.

Level of Evidence

3
The Neuroplastic Adaptation Trident Model: A Suggested Novel Framework for ACL Rehabilitation
Authors: Machan Timothy , Krupps Kody
Published: June 2021

Anterior Cruciate Ligament (ACL) injuries are common in athletic populations and there are many factors that contribute to a return to play decision. Human movement is diverse and variable, and it is important for patients recovering from an ACL injury to develop a variety of movement strategies for athletic performance. Variability of movement during sport may help to decrease injury risk by preparing the individual to handle many different situations and improve problem solving. ACL injuries result in neurophysiological dysfunction due to a disruption of the afferent information from the native mechanoreceptors in the ligament. Following injury, the brain enters a neuroplastic state and can adapt and change positively or negatively based on the rehabilitation or lack thereof. This commentary presents a novel framework for rehabilitation called the Neuroplastic Adaptation Trident Model that takes into account respected methods for attempting to achieve positive neuroplastic changes. This structured framework provides clinicians with reproducible methods to employ as part of the rehabilitation process to maximize motor control and motor learning. Suggested dosage and implementation are proposed to lead to a consistent and gradually progressive challenge throughout the entire rehabilitation process that takes advantage of the time from surgery until return to play. The purpose of this clinical commentary is to describe the Neuroplastic Adaptation Trident model and provide examples for clinical implementation. This method should be studied further to determine true effectiveness; currently, it is presented as a theoretical model based on best current evidence regarding ACL injury and rehabilitation of neurophysiologic dysfunction.

Level of Evidence

5
The Effects of Soft Tissue Flossing on Hamstring Range of Motion and Lower Extremity Power
Authors: Maust Zachary , Bradney Debbie , Collins Sean M , Wesley Caroline , Bowman Thomas G
Published: June 2021

Background

Flossing includes wrapping a specialized latex band around a muscle group providing compression, partially occluding blood flow, followed by performing exercises. This is hypothesized to improve flexibility by dissipating myofascial adhesions; however, research is lacking.

Objective

To determine the effect of the application of a floss band to the thigh on hamstring flexibility and lower extremity power.

Design

Crossover Study

Setting

Exercise Physiology Laboratory.

Participants

Twenty-one recreationally active individuals (8 male, 13 female; age = 22.62±2.99 years; height = 171.52±9.08 cm; mass = 73.57±11.37 kg).

Methods

Three counterbalanced interventions were studied during body weight squats, lunges, and hamstring curls (without resistance): floss, sham, and control. The floss treatment included wrapping the Rogue Wide Voodoo Floss Band™ from the proximal knee to the gluteal fold at a pressure of 140 to 200 mmHg. The sham treatment included wrapping the same band in the same location with less pressure (10 to 40 mmHg) while the control treatment did not include floss band application. Hip flexion range of motion, via the straight leg raise, and power (single-leg vertical jump) were compared from pre-test to post-test using a 3x2 repeated measures ANOVA.

Results

There was a significant interaction between time and session for hamstring flexibility (F(2,40)=17.54, p<0.001, η2=0.47). Post hoc tests showed significant differences between pre- (86.14±8.06 degrees) and post-test (90.81±7.69 degrees) for the floss session (p<0.001, Mean Difference=4.67, CI95=3.35-5.98) and between pre- (87.67±7.51 degrees) and post-test (89.86±7.88 degrees) for the sham session (p=0.001, Mean Difference=2.19, CI95=0.98-3.40). There were no significant interactions for jump power (F(2,40)=1.82, P=0.18, η2=0.08, 1-β=0.36).

Conclusions

Flossing treatment increased hamstring flexibility more than the sham session without affecting lower body power. Flossing could be beneficial when treatment or performance preparation goals are increased flexibility without decreased power. Future studies should continue to examine the clinical effectiveness of flossing on an injured population.
Platelet-Rich Plasma versus Corticosteroid Injection for the Treatment of Lateral Epicondylitis: A Systematic Review of Systematic Reviews
Authors: Kemp Jordyn A , Olson Megan A , Tao Matthew A , Burcal Christopher J
Published: June 2021

Background

Lateral epicondylitis (LE) is one of the most commonly reported musculoskeletal disorders in the upper extremity. The mechanism of LE is repetitive motion that causes a strain of the extensor tendons. This consequently causes pain and tendinosis at the tendinous attachment site on the lateral epicondyle. Most cases of LE are treated nonoperatively with a variety of interventions, such as injections.

Purpose

The aim of this systematic review (SR) is to synthesize the current evidence on the efficacy of platelet rich plasma (PRP) injections versus corticosteroid (CS) injections as treatment interventions for LE.

Study Design

Systematic Review

Methods

Online databases were searched from database inception to February 24th, 2020 for relevant SR’s evaluating PRP vs. CS injections as treatment methods for LE. Two independent researchers searched and screened for articles that were systematic reviews that directly compared PRP to CS injections for LE.

Results

A total of five SR’s were included in this review that were published between 2016 and 2020. CS injections were more efficacious for short-term pain relief, and PRP injections were more efficacious for long-term pain relief and improved function.

Conclusion

PRP injections appear to be a more effective long-term treatment option than CS injections for those with LE who did not respond to conservative management.

Level of evidence

1
The Effects of Whole Body Vibration on the Limits of Stability in Adults With Subacute Ankle Injury
Authors: Young Sonia , Wallmann Harvey W. , Quiambao Kailey L. , Grimes Brooke M.
Published: June 2021

Background

Limited research exists on the effects of both high and low frequency whole body vibration (WBV) on individuals with subacute lateral ankle sprains.

Hypothesis/Purpose

To examine the difference in the effects of high and low frequency WBV on limits of stability (LOS) in adults with a subacute ankle sprain. It was hypothesized that WBV would improve effects on outcome variables for LOS as a component of dynamic balance.

Study Design

Quasi-experimental, pretest-posttest design.

Methods

Fifteen participants ages 19-27 years (Mean age 22±2.36) with either a Grade I or Grade II lateral ankle sprain received WBV in bilateral stance under three randomized conditions (high frequency-25 Hz, low frequency-6 Hz, and control, which consisted of bilateral stance with machine off) for six minutes over three sessions (one time per week). The LOS test, consisting of 5 variables, were assessed using the NeuroCom® Balance Manager-SMART EquiTest® (Natus Medical Incorporated, Pleasanton, CA) at baseline and after the intervention period. The participants completed a practice LOS test and then had a six-minute standing rest break. After the rest break, they completed the pre-LOS (baseline) test. Intervention was administered using the Galileo® Med L Chip Research (Novotec Medical GmbH, Pforzheim, Germany) for six minutes for the appropriate condition of either high or low frequency WBV or control. Data analysis was performed using 2-Way (2x3) Repeated Measures ANOVAs with additional post hoc testing as needed.

Results

Significant interactions were found for reaction time (RT), movement velocity (MVL), and maximal excursion (MXE) composite scores with a decrease in RT of 0.117 seconds (p=0.022) between control and high frequency conditions during the post LOS. For composite MVL, an increase of 0.547 degrees/second (p=0.002) between pre- and post-high frequency WBV occurred. For composite MXE, an increase of 2.13% p=0.031 (when comparing pre- and post-high frequency WBV.

Conclusion

Findings suggest that a single session of high frequency WBV in individuals with a subacute lateral ankle sprain may result in improvement in several components of postural stability. WBV is a quick intervention that could be implemented in physical therapy clinics, athletic training rooms, and workout facilities to improve an individual’s LOS as a component of dynamic balance one to eight weeks post lateral ankle sprain.

Level of Evidence

2b
“It is shameful for me, but it doesn’t define me”: Exploring Experiences of Intimate Partner Abuse and Help-seeking among Female Students with a Male Partner
Authors: Wynn Annalise
Published: May 2021

Although a large quantity of research examines women’s victimisation by men in intimate relationships, little is known about the experiences of women who are university students. This is despite intimate partner aggression (IPA) being most prevalent in young people. This qualitative study sets out to address this gap by examining the experiences and associated help seeking of women attending a New Zealand university who have experienced harm from a male intimate partner. Five women voluntarily responded to an advert emailed to clients enrolled with the university student counselling service and took part in in-depth, individual semi-structured interviews. Transcripts were analysed using Interpretive Phenomenological Analysis. This analysis identified four themes related to the women’s experiences of IPA and help seeking. The first theme of A prior vulnerability comprised of three subthemes each representing a factor which contributed to the women’s vulnerability to entering an aggressive relationship. These were 1) a lack of life experience and understanding of partner aggression, 2) pre-existing challenges, and 3) a whirlwind relationship. The second theme Stuck described the barriers that the women faced which kept them in the relationship. These barriers were 1) a controlling environment, 2) not recognising abuse, 3) excusing the behaviour, 4) problem solver, 5) barriers to leaving the relationship, 6) barriers to help seeking and disclosure, and 7) the disempowering nature of negative help seeking experiences. The third theme Becoming unstuck comprised of four subthemes describing how the women were able to overcome the barriers and leave the relationship. These were 1) underlying resilience, 2) knowledge is power, 3) the importance of self-realisation and autonomy, and 4) the validating nature of positive help seeking experiences. The fourth theme The aftermath comprised of three subthemes demonstrating the short term and ongoing impacts of IPA. These were 1) double edge sword of freedom, 2) ongoing negative impact, and 3) healing over time. The findings highlight the importance of understanding young people’s aggression within the context of the developmental stages of adolescence. Importantly the results highlight the insidious nature of control and psychological aggression and its negative impact upon young women. In addition, it highlights how the young women’s lack of understanding and education about IPA kept them stuck, and how gaining knowledge was instrumental in empowering them to leave. Thus it is argued that prevention and early intervention efforts need to enhance this understanding at a societal level to improve women’s help seeking experiences. These findings contribute to a wider understanding of IPA and inform university service and policy design.
Just Fantasy? Online Pornography’s Contribution to Experiences of Harm
Authors: Keene Samantha
Published: May 2021

No description supplied
The Development and Aesthetic Pursuit of Opera Films in this Century (2000-2015)
Authors: Yang Xiufeng
Published: May 2021

This paper examined the development of opera films in regard to cultural traditions and modernization, the evolution and analysis of new aesthetic concepts, the cultural reasons for continuous development and the expansion of communication channels. Based on these analyses, this paper concluded with the call for China to continuously improve and develop of the Chinese opera films in the hope for a new “golden age.”
Pulsujące metafory dydaktyki w kleszczach języka. O lingwistycznych blokadach konstruktywistycznej zmiany w kształceniu
Authors: Męczkowska-Christiansen Astrid
Published: May 2021

The content of the article includes analyses of the linguistic plane of the reception of constructivist didactics, carried out in order to seek a partial answer to the question: why does the paradigmatic change in the area of school education in Poland, which has been intensively postulated by scientific circles over the last thirty years, not materialise in the space of contemporary educational practices in their institutional settings? In particular, the subject of analyses refers to the dominant – “instructive” – linguistic level of general didactics, with regard to such concepts as: education, learning, knowledge. The purpose of the linguistic analyses was to show how the existing constellations of didactic metaphors have hindered the conceptualisation and reception of ideas coming from constructivist positions.
Konstruktywistyczna dydaktyka w edukacji matematycznej
Authors: Kalinowska-Iżykowska Alina
Published: May 2021

Didactics as science is a sub-discipline of paradigmatically pluralistic pedagogy. Its key categories, concepts, and relations between them are subject to changes in meaning. Constructivist mathematical education has to offer tools for a different understanding of educational phenomena. The text shows examples of significant transformations of didactic knowledge. The necessity to reconstruct how mathematical knowledge functions concerning students and teachers also implies requirement for changes in methodological assumptions. It becomes necessary to undertake qualitative research approaches to deepen the understanding of what is happening in lessons.
Interdyscyplinarny paradygmat "Childhood Studies" w perspektywie konstrukcjonizmu
Authors: Kowalik-Olubińska Małgorzata
Published: May 2021

The author situates her deliberations within the area of the interdisciplinary research paradigm known as Childhood Studies. The subject of her interest is the application of the ideas of constructionism, the adoption of which played a vital role in the emergence of Childhood Studies as a separate field of studies. At the time of shaping and consolidation of the new paradigm, constructionism turned out to be the primary metatheory within it. The objective of the following article is to demonstrate the values and weaknesses of the entanglement of Childhood Studies in this theoretical perspective.
Development of Dachl Cross-Cultural Learning Designs
Authors: Afifah Lilis , Ardiyani Dewi Kartika , Hidayat Edy , Retnantiti Sawitri
Published: June 2021

The actualization of learning materials needs to be done to create a learning situation that is under the times. In learning German as a foreign language, the concept of DACHL has not been well recognized by every German teacher at the SMA / MA / SMK level. For this reason, adjustments to learning materials, techniques, and learning strategies are considered important so that the German learning process does not only train language skills but also fosters a cross-cultural understanding of these countries and the Indonesian nation itself. This article attempts to describe the results of training activities for the preparation of cross-cultural learning designs for German language teachers at the SMA / MA / SMK levels throughout Malang and its surroundings. This training implementation method which is accommodated in community service activities is designed by adopting an education and training system for ASN, namely on campus and off-campus. Despite undergoing method modifications as a result of the outbreak of the Covid-19 pandemic, training is going well. With simultaneous mentoring, collaboration, and collaboration between various parties, participants can receive the material well and simultaneously apply it in the form of a learning design.
Some aspects of the concept of the mechanism of administrative and legal regulation and its methods
Authors: Aslanova Narmin
Published: May 2021

The article discusses the concept of the mechanism of administrative-legal regulation and its methods, taking into account distinctive features and special characteristics.
FORMATION AND DEVELOPMENT OF LEGISLATION ON animal protection IN PRE-REVOLUTIONARY RUSSIA
Authors: Ilyin Innokentiy , Ahmedov Ruslan
Published: May 2021

This article analyzes the legislative regulation of the protection of objects of the animal world at different stages of the development of the state and law of Russia in the pre-revolutionary period of time.
LEGAL REGULATION OF THE MONOPOLY OF FOREIGN TRADE IN THE FIRST YEARS OF SOVIET regime
Authors: Kukharenko Vladislav , Fedorov Roman
Published: May 2021

The historical aspect of the monopoly of foreign trade allows us to see the development of legislation on monopoly, since the beginning of the XX century. The article, through a detailed analysis of the draft laws of that time, defines the essence of monopolies as a legal institution. These aspects lead to the need to study the legislation on the monopoly of foreign trade, in order to make amendments and improve the current legislation.
GENETIC ALGORITHM APPROACH FOR OPTIMAL CYCLIC TOUR ROUND THE STATE CAPITALS IN NIGERIA’S NIGER DELTA REGION
Authors: Fraser Egba Anwaitu , Okonkwo Obikwelu R.
Published: May 2021

The classical traveling salesman problem(TSP) is simple to state but difficult a problem to solve. TSP seeks to determine the total distance or cost of visiting (n-1) cities or points and returning to the starting city or point. In this research, the Genetic Algorithm (GA) technique is utilized for solving the problem of finding the optimal tour around the nine Niger Delta state capitals in Nigeria which is an example of a traveling salesman problem. The partially mapped(PMX) crossover operator and the inversion mutation operator techniques were employed due to their simplicity. Genetic algorithms are evolutionary techniques used in solving optimization problems according to the survival of the fittest. The method does not provide an optimal exact solution, rather, it gives an approximated result in time. Data required for the tour were obtained from an online google map website where the distances between the state capitals and their coordinates (longitude and latitudes) were obtained. The MATLAB software which is suitable for scientific computations was used in coding the results show that the BB algorithm yielded an optimal tour of 1351km with a cyclic tour of (X3,1), (X1,9), (X9,6), (X6,8), (X8,4), (X4,7), (X7,5), (X5,2), (X2,3) and then (X3,1) after nine (9) iterations. Solving using the genetic algorithm with the four genetic parameters population size(N), maximum generation(G), crossover probability (Pc), and mutation probability(Pn) were used and set to 30; 10; 0.8; and 0.1 respectively yielded an optimal path of (8476125398) which is with an optimal tour of 1124.0KMs. genetic algorithm yielded an improved result.
A COMPREHENSIVE UPDATE ON INCIDENCE, PREVALENCE AND COMPLEX ETIOLOGY OF CENTRAL LINE–ASSOCIATED BLOODSTREAM INFECTION IN PEDIATRIC INTENSIVE CARE UNITS IN KING SAUD MEDICAL CITY
Authors: Abdulrahiem Juhaina , Sultan Asia , Alaklobi Faisl , Amer Hala , Alzoman Hind
Published: May 2021

Central Line Associated Bloodstream Infection (CLABSI) is a type of bloodstream infection that is caused by microorganisms after the insertion of central lines. Paediatric Intensive Care Units have been studied to conduct this research on CLABSI in children from 2 to 15 years old. Children have been divided in two age groups that are 2-5 and 5-15 years. The Royal Children’s Hospital, Melbourne has been chosen as a sample of this besides other five hospitals of Australia. A total of 350 patients are studied in the course of this research and 216 among them were inserted with central lines. Bloodstream infection has been identified in 49 patients from these 216 patients and CLABSI occurred in 75.51% of them that is 37 patients. Associated microorganisms and other underlying diseases are listed in this study to develop an idea about factors responsible for CLABSI.
THE EFFECTIVENESS OF A SCHOOL-BASED INTERVENTION FOR THE TREATMENT OF IRON DEFICIENCY ANEMIA
Authors: Vellozo Eliana Pereira , Arcanjo Francisco Plácido Nogueira , Vitalle Maria Sylvia de Souza , Fisberg Mauro , Enes Carla Cristina , Andrade André Luiz Monezi , Niskier Sheila Rejane , Ganen Aline de Piano , Hall Peter Richard , Braga Josefina Aparecida Pellegrini , Passos Maria Aparecida Zanetti
Published: May 2021

Background: In Brazil, iron deficiency anemia is considered a public health problem, which has a direct impact on the process of child growth and development. To assess the impact of a powdered supplement added to food preparations, on hemoglobin (Hb) levels and other hematimetric parameters in children. Method: This study is a double-blind, community-controlled clinical trial conducted in education centers in the northeast of Brazil. In this trial, food preparations were offered with a powdered supplement, enriched with iron (intervention) and control (no supplementation), Monday through Friday, for 60 days. Two biochemical evaluations were performed to determine Hb, hematocrit (Ht), mean corpuscular volume and ferritin levels before and after the intervention. Results: For participants in the 6- to 59-month age range, we identified an increase in mean Hb concentrations and other hematimetric parameters. In the 5- to 11-year age group, there was a significant increase in both groups for Hb and Ht values, and mean Hb concentration was significantly greater in the intervention group (12.25±0.76 vs. 11.93±0.94, p<.0035). In the 12- to 14-year-olds, all variables analyzed presented an increase. Conclusions: This school-based intervention effectively increased Hb concentrations other hematimetric parameters and reduced the prevalence of anemia in children and adolescents.
A STUDY ON ASSAULT CASES ADMITTED TO COLOMBO SOUTH TEACHING HOSPITAL-SRI LANKA
Authors: Hulathduwa S. R , Bandara A. R. S. V , M. D Aloysius
Published: May 2021

Assault cases are commonly encountered in the day to day life of a Judicial Medical Officer or an Accident Service Surgeon. Most of the admissions to the Accident Service Unit of any major hospital in almost anywhere in the world are due to accidents and assaults. Accidents are preventable disasters and there are major organizations whose main role is to draw strategies and plans to prevent accidents. On the other hand, assaults are always man-made and the underlying factors are very different from those of accidents. Assaults are a serious health and economic burden in a country. Additionally, there are socio-economic, religious, ethnic, cultural and legal issues intermingled with the broad picture of ‘assaults’. Very few studies have been done in depth about assaults in the recent past which cover the multiple aspect of the issue. Even the conclusions drawn from the most extensive study on this subject may become obsolete and dilapidated after few years, as the patterns of wounding and the methods and trends are changing constantly across the globe. This justifies the necessity of continuous research by different authorities to this ever-changing subject. This study discusses certain demographic characters of victims, assailants, contributory factors and legal implications of assaults.
The Influence of Different Surface Treatments on Wear Performance of Rod Materials used in Gas Springs
Authors: Savaş Soner , Yalçın Çağatay Berkan
Published: June 2021

Gazlı amortisörler, birçok uygulamada yük ve ağırlık ihtiva eden kapakları eş kuvvet ile dengelemek ve kullanım alanında hız kontrolü sağlamak, damperlemek hatta yükü kaldırmak gibi roller oynamaktadırlar. En bilinenleri; arabaların
bagaj ve motor kapakları, mobilya kapakları, makina kapakları, ameliyat masaları, çeşitli endüstriyel uygulamalar, vb.’dir. Gazlı amortisörlerin sahip olduğu gaz basıncının ortalama %10’u kaybedilene kadar açma-kapama sayısı genellikle
kullanım ömrünü belirtmektedir. Çalışma ömrünü belirleyen sızdırmazlığı sağlayan elemanlar üzerindeki tribolojik mekanizmada sürtünme ve aşınma rol oynamaktadır. Mil malzemesi ile sızdırmazlık elemanı arasındaki olaylar dizisinde
mil malzemesinin yüzey pürüzlülüğü, sızdırmazlık parçası olan keçe ve O-ringlerin malzeme özellikleri etkendir. Mil malzemesinin pürüzlülüğünü iyileştirmek ve aşınmaya karşı direncini arttırmak için farklı prosesler ile yüzey özellikleri
iyileştirilebilmektedir. Bu çalışmada, aynı çaplarda ve aynı özelliklerde hazırlanmış olan gazlı amortisörlerde nitrürasyon uygulanmış C35, krom kaplanmış C45 ve krom kaplanmış SS316 olmak üzere 3 farklı milin ve farklı özelliklerdeki
keçelerin amortisör ömrüne olan etkisi tribolojik olarak araştırılmıştır. Yapılan testlerde yüzey pürüzlülükleri, sertlikleri, aşınma dirençleri, sürtünme kuvvetleri, ömür testlerindeki gaz kayıpları ölçülmüş ve yorumlanmıştır.
Sonuç olarak en iyi amortisör ömrüne, düşük pürüzlülükteki mil ve PU keçe ile ulaşılmıştır.
Simulasi Kinerja Motor BLDC untuk Merancang Sistem Kelistrikan Mobil Hemat Energi Menggunakan Simulink
Authors: Satrio Wahyubramanto  , Tobing Sheila , Adeatma Antonio Yohanes
Published: May 2021

Kontes Mobil Hemat Energi (KMHE) merupakan lomba tingkat nasional yang diselenggarakan oleh Kementerian Riset dan Teknologi Indonesia yang bertujuan untuk mewadahi kreativitas mahasiswa seluruh Indonesia dalam merancang, membangun, menguji dan menyelenggarakan kompetisi mobil hemat energi yang aman dan ramah lingkungan. Peserta dari kegiatan ini adalah seluruh mahasiswa teknik di Indonesia. Penelitian ini membahas mengenai rancang bangun sistem kelistrikan mobil hemat energi yang telah sesuai regulasi KMHE 2019. Metode yang digunakan dalam penelitian ini adalah melalui simulasi Simulink MATLAB dengan menggunakan sistem kontrol Proportional Integral Derivative (PID). Hasil simulasi dengan program Simulink MATLAB R2020b menunjukkan bahwa motor BLDC dengan kecepatan putar 100-900 rpm menghasilkan torsi motor sebesar 30 Nm dan memiliki daya sekitar 960 W. Hal ini menunjukkan bahwa motor BLDC telah melebihi kebutuhan perancangan mobil listrik.

Kata Kunci: KMHE, motor BLDC, ramah lingkungan, sistem kelistrikan, torsi motor.
Risk of Anterior Cruciate Ligament Injury in Female Soccer Athletes: A Review
Authors: Mancini Sophia L. , Dickin Clark , Hankemeier Dorice A. , Rolston Lindsey , Wang Henry
Published: June 2021

Soccer is becoming an increasingly popular sport amongst women. Common movements during play, such as jumping and cutting, require rapid acceleration and deceleration of multiple lower-limb joints. The anterior cruciate ligament (ACL), which contributes to stabilization of the knee, is often injured during these events. ACL injury typically requires costly surgery, extended time away from sports, and jeopardizes long-term joint health. Due to sex-specific factors such as menstruation and anatomical disadvantages, women are more susceptible to tearing their ACL. Injury often occurs in non-contact scenarios during rapid acceleration or deceleration movements. Research has examined these movements and established several kinematic and kinetic mechanisms as well as muscle activation patterns that frequently occur at the time of injury, however results tend to vary based on population. This article summarizes recent and relevant literature of ACL injury mechanisms and highlights the lack of specific research in the high-risk female soccer athlete population. Due to inconclusive risk factors, injury prevention programs within this population have been inconsistent. ACL injury risk for female soccer athletes should be closer examined so that more specific injury risks can be established, and effective protective measures can be taken. Raised awareness of this need may capture attention in the research and medical communities and potentially stimulate the development of strategies that limit future ACL injury and thus the challenges it brings to the high-risk female soccer athlete.
Implementasi Model Pembelajaran Berbasis Masalah Pada Materi Menerapkan Prosedur Teknik Pengefreisan Balok Segiempat di SMK Negeri 1 Selong untuk Peningkatan Hasil Belajar Kelas IX
Authors: Wibowo Agus
Published: May 2021

Model pembelajaran berbasis masalah dimplementasikan pada penelitian tindakan kelas pada kelas XI SMK Negeri 1 Selong, Lombok Timur, Nusa Tenggara Barat pada tahun ajaran 2018/2019. Penelitian Tindakan Kelas yang dilaksanakan menggunakan dua siklus dengan sampel peserta didik sebanyak 25 orang. Data hasil belajar dikumpulkan untuk setiap siklus. Adapun teknik pengumpulan data yang digunakan untuk mendapatkan data penelitian dengan cara tes, wawancara, observasi dan studi dokumentasi. Hasil belajar peserta didik dapat dilihat pada siklus I mencapai nilai rata-rata 70,50. Pada siklus II nilai peserta didik mencapai nilai rata-rata 78,50. Berdasarkan hasil ini dapat disimpulkan bahwa penerapan model pembelajaran berbasis masalah pada materi menerapkan prosedur teknik pengefreisan balok segiempat efektif diimplementasikan guna meningkatkan hasil belajar peserta didik
HUBUNGAN TINGKAT KECANDUAN BERMAIN ONLINE GAME DENGAN TINGKAT ASTENOPIA PADA MAHASISWA FAKULTAS KEDOKTERAN UNIVERSITAS PATTIMURA AMBON
Authors: Assagaf Abdur Rahman , Tamtelahitu Carmila L. , Rahawarin Halida
Published: May 2021

Online game, salah satu jenis permainan yang diakses menggunakan jaringan internet, memungkinkan koneksi dan interaksi banyak pemain game di seluruh dunia. Penggunaan online game terlalu lama dapat menimbulkan kebingungan antara kenyataan dan ilusi, berkurangnya daya konsentrasi, penurunan berat badan, dan kondisi penglihatan terganggu. Penurunan kondisi penglihatan yang ditimbulkan akibat kebiasaan bermain online game biasanya berawal dari mata lelah (astenopia) dan kering. Penelitian ini bertujuan untuk mengetahui hubungan tingkat kecanduan bermain online game dengan tingkat astenopia pada mahasiswa Fakultas Kedokteran Universitas Pattimura Ambon. Penelitian ini menggunakan metode cross sectional dengan pendekatan kuantitatif. Pengumpulan data menggunakan kuesioner yang dibagikan kepada mahasiswa Fakultas Kedokteran Universitas Pattimura Ambon. Data hasil penelitian dianalisis secara univariat dan bivariat. Hasil penelitian menunjukkan bahwa responden yang paling banyak ditemukan adalah responden yang kecanduan online game yaitu sebanyak 66 responden (82,5%) dan yang suka online game sebanyak 14 responden (17,5%). Tingkat astenopia yang paling banyak ditemukan adalah astenopia ringan yaitu sebanyak 53 responden (62,5%) dan yang paling sedikit adalah astenopia berat yaitu 2 responden (2,5%). Sedangkan tidak ditemukan responden yang tidak mengalami astenopi dan astenopia berat. Hasil uji Chi-square menunjukkan nilai p sebesar 0,52 (p > 0,05) yang berarti bahwa tidak terdapat hubungan antara tingkat kecanduan bermain online game dengan tingkat astenopia pada mahasiswa Fakultas Kedokteran Universitas Pattimura Ambon.
THE ANALYSIS OF ENGLISH SLANGS FOUND IN THE ANTMAN MOVIE
Authors: Donal Andri , Fauzi Andi Rizky , Saleh Himry
Published: May 2021

This article discusses the meaning and types of English slangs found in the Ant Man Movie directed by Peyton Reed, produced by Wald Disney Studios Motion Pictures, 2015. The main object of the research was to find out themeaning of English slangs found in the Ant Man Movie and classify themdepending on its characteristics of English Slangs types. This research used a qualitative method. In Classifying the English Slangs, researchers used theory from Coleman that classifying English slangs into seven; English Slang changes in meaning, English Slang changes in function, English Slang change in form, English Slang created by abbreviation, English Slangchanges in spelling, Slangs loans and Slangs from imitating sound. Through this research, researchers found forty English Slangs in the Ant Man Movie; fourteen English Slangs created by changes in meaning, two English Slangs created by changes in, twelve English Slangs created by changes, five English Slangs created by abbreviation, seven English Slangs created bychanges in spelling, four English Slangs loans, and two English Slangs are from sound. English slangs are non-register language. It is more acceptable in daily life because it is fresher and simple in use.
Noreg og dei polskjødiske flyktningane, 1968–1970
Authors: Larsen Svein-Erik
Published: May 2021

In 1968, an antisemitic campaign, launched by the Polish government, caused around 13,000 Jews to leave Poland. About 2500 of these refugees came to Denmark, while only about 25 ended up in Norway. The migration to Norway could potentially have reached low hundreds, but as oral-history sources indicate, the Jewish congregation in Oslo turned down a government initiative in 1969. Based on written and oral sources, and secondary literature, I argue that there was an equally important factor differentiating the two countries. Comparing the Danish and Norwegian refugee reception policies, the article finds that Danish authorities and their NGO partners at decisive stages in the process were more proactive than their Norwegian counterparts in their efforts to persuade Polish Jews to come. The most critical point was in June 1969, when Denmark’s embassy in Warsaw started issuing Jews with automatic visas, while Norway retained its existing application process.
Letters to India
Authors: Tolley Clive
Published: May 2021

I write as a non-Jew about the brief correspondence sent to my father, shortly after the Second World War, from a gifted, young Jewish violinist, and briefly outline the background story-arc of her family’s aliyah, from the Pale a couple of generations earlier to her settlement in the new state of Israel. Her story is not bound up with the Holocaust, nor (as far as we know) did she experience antisemitism: but this essay attempts to highlight the majesty and sparkle of a moment in the mundane life of a Jewish woman, and its brief impact on a gentile. The focus is on her musical remarks about some of the leading performers of the day. I also outline some of the ways I secured source materials for this primarily biographical sketch, but this article is presented more as a ‘memoire’ than an academic study. It is offered in honour and memory of a Jewish lady whom, alas, I was a little too late to meet myself, and to celebrate my father’s hundredth birthday in May 2021.
La importancia del vínculo en la resiliencia familiar durante el Covid-19
Authors: Benítez Corona Lilia , Martínez Rodríguez Reyna C. , Tartakowsky Pezoa Viviana
Published: May 2021

La pandemia global por COVID-19 incidió aún más en la urgencia de preparar a la humanidad para sobrevivir ante situaciones críticas. Los vínculos de afectividad son una fuente para la resiliencia familiar. El objetivo de este artículo es presentar los primeros datos de una investigación exploratoria, no experimental para destacar si la percepción del vínculo era distinta en dos grupos independientes. Un cuestionario basado en el modelo de resiliencia familiar de Walsh fue aplicado a 388 participantes de España y México. Se utilizó la prueba estadística no paramétrica de Mann - Whitney para contrastar las respuestas, además del análisis de indicadores sociodemográficos para diferenciar los vínculos. Los hallazgos mostraron que no existen diferencias significativas entre los dos grupos respecto a la necesidad de generar vínculos afectivos para reforzar la resiliencia de cada uno de los integrantes y fortalecer la resiliencia familiar ante la crisis global.
IMPLEMENTATION OF A HYBRID METHOD OF SEARCHING FOR CLOSE OBJECTS, TAKING INTO ACCOUNT THE GENERAL AND ACOUSTIC CHARACTERISTICS
Authors: Malyeyeva Olga , Yesipov Vadym , Artiukh Roman , Kosenko Viktor
Published: June 2021

The subject of research in the article is the methods of finding close objects and technologies of forming recommendations. The aim of the article is to develop a recommendation system based on a hybrid method of searching for objects, taking into account both user preferences and audio characteristics of objects. The following tasks are solved: analysis of methods and algorithms used in recommendation systems; development of a hybrid method of forming recommendations on the principle of double organization; determination of the main functions and architecture of the system of formation of musical recommendations; testing of calculation algorithms and search methods in the system for analysis of similarity of musical recommendations. The following research methods are used: methods of correlation analysis, methods of similarity theory, algorithms of collaborative filtering and content analysis, hybrid methods, methods of analysis of audio characteristics, programming technologies. The following results were obtained: A study of collaborative filtering, content-based filtering and hybrid methods. Algorithms and calculation formulas of the considered methods are given. The main audio characteristics of musical compositions are considered. The method of formation of recommendations on the principle of double organization is developed. The main functions of the system of formation of musical recommendations are listed and the diagram of components is formed. An example of calculating the characteristics of user preferences and similarity of musical compositions by audio characteristics is given. Conclusions: According to the results of testing the system by three methods, we can conclude that the proposed hybrid method was the most effective among the studied recommendation methods with the lowest standard error rate.  In addition, the hybrid method on the principle of double organization solves such problems of existing recommendation methods as excessive similarity of recommendations, potentially small number or no proposals at all by compensating data from one block of data from another.
СИНТЕЗ ТА АНАЛІТИЧНІ ДОСЛІДЖЕННЯ ГЕОМЕТРИЧНИХ ПАРАМЕТРІВ СТАТИЧНО ВИЗНАЧЕНОГО ПРОСТОРОВОГО ШАРНІРНОГО МЕХАНІЗМУ ГАЛТУВАЛЬНОЇ МАШИНИ
Authors: Залюбовський М. Г. , Панасюк І. В. , Малишев В. В.
Published: May 2021

Synthesis  of  a  seven-link  statically  determined  spatial  hinge mechanism  with  an  additional movable crank link without redundant (passive) connection of the tumbling machine with a complex spatial movement of the working vessel with subsequent analytical study of its design and geometric parameters.  Methodology. The analytical method of research is used on the basis of geometric and structural synthesis of a spatial seven-link hinge mechanism with an additional movable crank link without redundant connection of the tumbling machine with a complex spatial movement of the working vessel. The machine was simulated in the SolidWorks-2016 computer-aided design system.  Tumbling  types  of  equipment  with  containers,  which  perform  a  different  character  of movement, are analyzed. On the basis of structural synthesis, the design of a seven-link statically defined spatial  mechanism  with  an  additional  movable  link,  a  tumbling  machine  crank,  in  which  the  working capacity performs a complex spatial movement, is proposed. Carried out 3D modeling of the machine in the CAD  system  SolidWorks  2016.  Analytical  studies  of  the  main  geometric  parameters  of  the  developed tumbling machine were carried out.  Scientific novelty. A relationship has been established between various geometric parameters of the synthesized seven-link statically determined spatial hinge mechanism, in particular, between the center-to-center length of the intermediate connecting rod (working capacity) and the length of the crank, which makes it  possible  to  calculate  the  necessary  ratios  of  the  lengths  of  the  links  of  the  mechanism  to  ensure  the functioning of the machine without jamming its spatial mechanism. Practical significance. A new design of a machine for processing parts has been developed, based on  a  seven-link  statically  determined  spatial  hinge  mechanism  with  an  additional  movable  crank  link. Mathematical dependences are obtained for calculating its basic design and geometric parameters. These dependencies can be used in the corresponding design bureaus of machine-building enterprises at the design stage of tumbling equipment with a complex spatial movement of working containers.
Вплив параметрів адитивного формування на електричні властивості графітонаповненого композиту на основі полілактиду
Authors: Сова Н. В. , Слепцов О. О. , Федорів Т. Р. , Мартиненко А. О. , Кудлай М. Р. , Іскандаров Р. Ш.
Published: May 2021

Purpose. Investigate the effect of additive formation parameters on the properties of an antistatic composition based on polylactide (PLA). Methodology. Surface and bulk electrical resistance were determined by ASTM D257. Findings. The influence of additive formation parameters on the electrical properties of graphite-filled composite based on polylactide has been studied. It was found that the value of resistivity significantly depends on the printing conditions, namely the temperature, speed, thickness of the layer. Increasing the printing temperature helps to reduce the resistivity of the sample. Reducing the thickness of the polymer layer also reduces the resistivity at a print speed within 3000 mm / min It was found that the specific electrical characteristics are significantly different in the plane of the sample in contact with the printing platform. Concentric method of laying layers of polymer melt is less effective in terms of resistivity than mutually perpendicular. It was found that the electrical resistivity of samples made of material for 3D printing, which was previously subjected to drying below the resistance of the sample made of undried material. The programmed change of 3D printing parameters allows to control the specific resistance of graphite-filled composite based on polylactide in the range of three orders and to obtain products with properties from antistatic to statically dissipative materials. Additive production allows to obtain products of the desired configuration with adjustable electrical properties. Originality. The peculiarities of the change of antistatic properties of the polymer composite depending on the conditions of additive formation of experimental samples are investigated. Depending on the applied parameters of additive molding, it is possible to obtain products with properties from antistatic to statically dissipative materials. Practical value. Technological modes of additive molding of composite products based on polylactide and graphite have been developed. Energy consumption for additive formation of products of different mass is estimated.
PEMBUATAN BOBA KOPI BIJI SALAK SEBAGAI PANGAN FUNGSIONAL SUMBER ANTIOKSIDAN
Authors: Raharja Kristian Triatmaja , Chabibah Anis Nur , Sudarmayasa I Wayan , Romadhoni Ita Fatkhur
Published: May 2021

Biji salak yang tidak dikonsumsi secara langsung sebagai pangan ternyata memiliki potensi nilai tambah produk. Kopi biji salak terbukti memiliki kandungan kafein yang rendah, senyawa antioksidan, dan memiliki potensi ekonomi yang tinggi. Minuman boba adalah komoditas minuman dengan penjualan yang tinggi. Penelitian ini dilakukan untuk mengkaji proses pembuatan boba kopi biji salak, dan mengetahui pengaruh penambahan ekstrak kopi biji salak terhadap sifat sensori, dan aktivitas antioksidan boba. Studi eksperimental menggunakan desain rancangan acak lengkap, dengan perlakuan penambahan ekstrak kopi biji salak sebesar 20% (X1), 40% (X2), 60% (X3), 80% (X4), dan 100% (X5). Daya terima panelis terhadap produk boba dianalisis dengan uji hedonik. Aktivitas antioksidan dianalisis dengan metode penangkapan radikal DPPH, dan antioksidan asam askorbat digunakan sebagai kontrol pembanding. Hasil uji hedonik menunjukkan bahwa penambahan ekstrak kopi biji salak berpengaruh nyata terhadap parameter warna, aroma, rasa, dan keseluruhan, namun tidak berpengaruh pada tekstur. Pada uji DPPH, penambahan ekstrak kopi biji salak berpengaruh nyata terhadap aktivitas antioksidan boba. Produk terbaik berdasarkan uji hedonik untuk keseluruhan atribut sensori adalah produk boba dengan penambahan ekstrak kopi biji salak 100% (X5), dengan skor 4,13 (skala penerimaan suka - sangat suka). Produk X5 memiliki aktivitas antioksidan dengan kategori rendah dengan Nilai IC50 391,0 μg/mL.
TINGKAT KESESUAIAN FISIK LAHAN UNTUK PERKEBUNAN KOPI DI NAGARI AIE DINGIN KECAMATAN LEMBAH GUMANTI SUMATERA BARAT INDONESIA
Authors: Suryani Ade Irma
Published: May 2021

This study answers research questions about: (1). The depth of the coffee plantation land in Nagari Aie Dingin, Lembah Gumanti District, Solok Regency. (2). The slope of the coffee plantation slope in Nagri Aie Dingin Lembah Gumanti District Solok Regency (3). Soil texture of coffee plantations in Nagari Aie Dingin Lembah Gumanti District Solok Regency (4). Coffee plantation structure in Nagari Aie Dingin Lembah Gumanti District Solok Regency (5). The suitability level of coffee plantation land in Nagari Aie Dingin Kecamatan Lembah Gumanti Solok Regency Type of Research This is a quantitative descriptive study. The sampling of this research was carried out by random technique, as many as 3 research areas. Based on land units obtained from overlapping overley sloping maps, land maps, geological maps, landform maps and land use maps. There are 210 different land units in the study area. Based on field analysis, it was found that the physical characteristics of Nagari Aie Dingin seen from the land unit land suitability level consists of two levels: K2.III.Tomp.Km.Sb land unit included in the land suitability level (accordingly). D2.III.Pb.Km.Ht land unit and D2.1.Qv.Km.Sb land unit are included in the land level (not suitable).