bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH MASASE DENGAN TERAPI PANAS TERHADAP PEMULIHAN GANGGUAN NYERI OTOT TRAPEZIUS PADA PEMAIN RUGBY
Authors: Maulana Gilang Fachri , Graha Ali Satia
Published: June 2020

Olahraga rugby merupakan olahraga intensitas tinggi yang ditandai dengan adanya aktivitas lari dengan kecepatan tinggi, sprint, dan hantaman-hantaman antar pemain. Gangguan nyeri otot trapezius sering terjadi pada pemain rugby. Tujuan penelitian ini adalah untuk mengetahui adanya pengaruh masase dengan terapi panas terhadap pemulihan gangguan nyeri otot trapezius pada pemain rugby. Penelitian ini merupakan penelitian pre-experimental dengan rancangan one group pretest-posttest design. Populasi dalam penelitian ini adalah pemain rugby Universitas Negeri Yogyakarta. Teknik pengambilan sampel menggunakan purposive sampling dengan kriteria inklusi dan eksklusi sehingga didapatkan sampel sebanyak 10 orang. Data yang dikumpulkan adalah derajat nyeri otot trapezius sebelum dan sesudah perlakuan sebanyak 6 sesi. Teknik analisis data menggunakan analisis deskriptif dan uji hipotesis dengan Wilcoxon Signed Rank Test. Hasil penelitian menunjukkan bahwa ada pengaruh masase dengan terapi panas terhadap pemulihan gangguan nyeri otot trapezius. Penelitian ini menunjukkan bahwa terdapat penurunan nilai nyeri pada sebelum perlakuan (pretest) dan setelah perlakuan (posttest) pada setiap sesi. Walaupun demikian, persepsi nyeri mengalami kenaikan kembali pada setiap sesi sebelum diberikan perlakuan. THE EFFECT OF MASSAGE WITH HEAT THERAPY ON THE RECOVERY OF TRAPEZIUS MUSCLE PAIN DISORDERS IN RUGBY PLAYERSAbstractRugby is a high-intensity sport characterized by high-speed running, sprinting, and collision between players. Trapezius muscle pain disorders often occur in rugby players. The purpose of this study was to determine the effect of massage with heat therapy on the recovery of trapezius muscle pain disorders in rugby players. This research is a pre-experimental research with one group pretest-posttest design. The population in this study is the rugby player of Yogyakarta State University. The sampling technique uses purposive sampling with inclusion and exclusion criteria so that a sample of 10 people is obtained. Data collected was the degree of trapezius muscle pain before and after treatment for 6 sessions. Data analysis techniques used descriptive analysis and hypothesis testing with the Wilcoxon Signed Rank Test. The results showed that there was an effect of massage with heat therapy on the recovery of trapezius muscle pain disorders. This study shows that there is a decrease in the value of pain before and after the treatment (posttest) at each session. However, the perception of pain has increased again in each session before being given treatment.
PROFIL KONDISI FISIK: KECEPATAN, DAYA TAHAN, KELINCAHAN, DAN DAYA LEDAK SISWA SEKOLAH SEPAKBOLA KELOMPOK 15 TAHUN TINGKAT ELIT DAN NON ELIT DI PROVINSI DAERAH ISTIMEWA YOGYAKARTA
Authors: Sulistiyono Sulistiyono
Published: June 2020

Penelitian ini bertujuan untuk mengetahui profil kondisi fisik khususnya komponen kecepatan, daya tahan, kelincahan, dan daya ledak siswa sekolah sepakbola (SSB)  kelompok umur 15 tahun  tingkat elit dan non-elit di Provinsi Daerah Istimewa Yogyakarta. Metode yang digunakan adalah survey dengan sampel masing-masing berjumlah 30 siswa pada kelompok elit dan non elit. Komponen kondisi fisik siswa SSB kelompok umur 15 tahun tingkat elit memiliki profil kecepatan rata-rata 6,91 detik, daya tahan rata-rata 3,99 menit, kelincahan rata-rata 18,33, dan daya ledak rata-rata 52,80 cm, sedangkan tingkat non-elit memiliki profil kecepatan rata-rata 8,28 detik, daya tahan rata-rata 5,22 menit, kelincahan rata-rata 19,46, dan daya ledak rata-rata 48 cm dengan alat ukur kecepatan tes lari 50 m, daya tahan tes lari 1000 m, kelicahan dengan shuttle run test, dan daya ledak otot tungkai dengan tes vertical jump.  PROFILE OF PHYSICAL CONDITION: SPEED, ENDURANCE, AGILITY, AND EXPLOSIVE POWER OF 15 YEARS OLD FOOTBALL SCHOOL STUDENTS (SSB) OF ELITE AND NON- ELITE LEVEL IN YOGYAKARTA SPECIAL REGION PROVINCE Abstract This research intends to investigate the profile of the physical condition of speed, endurance, agility, and explosive power of 15 years old Football School (SSB) students of elite and non - elite level in Special Region of Yogyakarta Province.  The method used was by survey where each sample consisted of 30 students at the elite and non-elite group. The physical condition components of  15 year age SSB students of elite level has average speed 6.91 seconds measured by 50 m sprint, aerobic endurance average 48.7 cc / kg / minute, agility average 18.33 measured by shuttle run, and leg muscle explosive power average 52.80 cm, while the non-elite level has speed profile average 8.28 seconds, durability average 39.43, agility average 19,46, and explosive power average 48 cm with 50 m run speed measurement test, aerobic endurance, agility by shuttle run test, and leg muscle explosive power by vertical jump test.
Analisis Standarisasi Fasilitas Gedung Olahraga Universitas Negeri Yogyakarta
Authors: Pambudi Duwi Kurnianto
Published: June 2020

Penelitian ini bertujuan untuk mengetahui standarisasi ruang lingkup sebagai berikut : 1) Tipologi gedung olahraga. 2) Arena, 3) Fasilitas pengelola gedung olahraga. 4) Fasilitas Penonton pada GOR UNY sesuai dengan Permenpora  No 0445 Tahun 2014. Metode yang digunakan adalah metode pendekatan analisis kualitatif dengan menggunakan teknik pengamatan langsung, studi dokumen, dan wawancara kepada pihak pengelola/ manajemen dan karyawan GOR UNY. Hasil dari penelitian ini didapatkan bahwa Tipologi untuk GOR UNY masuk dikategori Tipe A dengan beberapa kelebihan yang dimiliki GOR UNY diantaranya : Kapasitas GOR dengan 6000 tempat duduk, memiliki 30 pintu keluar GOR yang bisa mempercepat arus keluar penonton dan pemain jika terjadi hal-hal yang membahayakan/ bencana alam. Jumlah toilet yang tersedia di GOR UNY berjumlah 52 toilet yang tersebar dilantai 1,2,3. Memiliki ruangan-ruangan yang siap digunakan dalam kegiatan event dan bisa disesuaikan dengan kebutuhan/multifungsi. Tempat Parkir yang luas dan terpadu dalam satu tempat dan berada disekitar GOR dengan kapasitas parkir yang besar,mampu menampung kendaraan dalam jumlah yang banyak. Beberapa kekurangan yang ditemukan di GOR UNY adalah akses untuk difabel menuju ke tribun penonton, jumlah toilet khusus difabel. Standardization Analysis Facility Yogyakarta State University Sports HallAbstractThis study aims to determine the standardization scope as follows: 1) Typology gymnasium. 2) Arena, 3) Facility manager gymnasium. 4) Spectator facilities in accordance with the YSU Sporthall Permenpora 0445 No. 2014. The method used is the method of qualitative analysis approach using direct observation techniques, the study of documents and interviews to the manager / management and employees YSU Sporthall. The results of this study found that the typology of YSU Sporthall sign categorized Type A with some of the advantages of YSU Sporthall include: Capacity YSU Sporthall with 6000 seating, has 30 exits YSU Sporthall which could accelerate the outflow of spectators and players when things happen that endanger / natural disasters. Number of toilets available in YSu Sporthall amounted to 52 toilets were scattered on the floor of 1,2,3. Had rooms that are ready to be used in events and activities can be tailored to the needs / multifunctional. Parking place extensive and integrated in one place and being around the YSU Sporthall with a large parking capacity, able to accommodate vehicles in large numbers. Some of the deficiencies found in YSU Sporthall is access for the disabled to get to the stands, the number of special disabled toilet.
Исследование микроволнового поглощения в полупроводниках для устройств умножения частоты и управления выводом излучения непрерывных и импульсных гиротронов
Authors: Маремьянин К.В. , Паршин В.В. , Серов Е.А. , Румянцев В.В. , Кудрявцев К.Е. , Дубинов А.А. , Фокин А.П. , Морозов С.С. , Алешкин В.Я. , Глявин М.Ю. , Денисов Г.Г. , Морозов С.В.
Published: June 2020

Abstract The results of experimental investigation into the dielectric losses in GaAs, InP:Fe, and Si semiconductor crystals in the millimeter wavelength range (80–260 GHz) using the original precise method of measuring the reflectance and dielectric-loss tangent tanδ based on open high-quality Fabry–Perot cavities are presented. It is shown that the losses in the frequency range from 100 to 260 GHz in ultrapure semiconductor single-crystal GaAs substrates are mainly determined by lattice absorption, while the main loss mechanism in single-crystal silicon is absorption by free carriers; herewith, tan δ ≈ (1–2) × 10^–4 even for a noticeable, at a level of 10^12 cm^–3, free carrier concentration. In contrast with GaAs and Si, tanδ in compensated InP:Fe crystals is almost independent of frequency in the range from 100 to 260 GHz, which is associated with the material conductivity and optimization of microwave semiconductor devices, in particular, frequency-multiplication devices and devices of the controlled emission output of continuous and pulsed gyrotrons.
Терагерцовые дисперсия и усиление при стриминге электронов в графене при 300 K
Authors: Андронов А.А. , Позднякова В.И.
Published: June 2020

Abstract We interpret the recent observations of Otsuji’s team (Sendai) on switching from absorption to amplification at a temperature of T = 300 K during the passage of terahertz radiation through hexagonal boron nitride–graphene sandwiches with multiple gates on the surface with an increase in the electric field in graphene. It is shown that these effects are related to dispersion and negative conductivity near the transit-time frequency of electrons in momentum space under streaming (anisotropic distribution) in graphene in a strong electric field. On the basis of these data, a universal tunable terahertz source is proposed, which has the form of a graphene-containing sandwich with a high-resistance silicon wafer (a cavity) with an applied voltage. This terahertz cavity is a complete analog of the microwave generator implemented on an InP chip by Vorobev’s team (St. Petersburg).
Исследования фоточувствительности узкозонных и бесщелевых твердых растворов HgCdTe в терагерцовом и субтерагерцовом диапазоне частот
Authors: Румянцев В.В. , Маремьянин К.В. , Разова А.А. , Сергеев С.М. , Михайлов Н.Н. , Дворецкий С.А. , Гавриленко В.И. , Морозов С.В.
Published: June 2020

Abstract The photoresponse is investigated in the frequency range of 0.15–15 THz in HgCdTe epitaxial layers with a cadmium concentration from 15.2 to 19.2% grown by molecular-beam epitaxy. It is shown that narrow-gap and gapless HgCdTe solid solutions can be used as detectors of both terahertz and sub-terahertz radiation with a characteristic response time of 2–4 ns and with a sensitivity approaching n -InSb-based detectors widely used in this range.
Особенности когерентной спиновой динамики двумерного электронного газа в режиме холловского ферромагнетика
Authors: Ларионов А.В. , Степанец-Хуссейн Э. , Кулик Л.В.
Published: June 2020

By means of the time-resolved Kerr rotation technique, a spin-depolarized electron system at a filling factor ν = 1 in a GaAs quantum well was studied. At temperatures above 5 K, a transition from a new spin-correlated state to a state with low spin stiffness characteristic of a single-particle electron system was found. A nonlinear contribution to the decay of Larmor oscillations arising at low temperatures, when spin-spin correlations determine the ground state of a two-dimensional electron system, is highlighted. The parameters of the fluctuating magnetic field acting on individual electron spins are estimated.
El papel de las instituciones educativas en la difusión de la normatividad jurídica que sanciona la violencia contra la mujer
Authors: Larrarte Guzmán Daniela , Portillo Wilches Jorge Camilo
Published: June 2020

Este artículo es el resultado de una investigación, cuyo objetivo fue hacer un diagnóstico sobre el grado de difusión que tiene la normatividad jurídica relacionada con violencia contra la mujer en estudiantes de décimo semestre de la Universidad Cooperativa de Colombia, sede Montería. El problema de investigación, gira en torno a un flagelo que ha azotado a la humanidad desde tiempos inmemoriales, el cual es la violencia contra la mujer, que en el caso colombiano presenta cifras alarmantes, así como también se aborda el papel que juega el estado en un aspecto tan importante como son las estrategias de difusión de la normatividad jurídica relacionada con dicha problemática y la efectividad de las mismas.  El estudio se abordó desde un diseño cuantitativo de tipo descriptivo, incluyó un cuestionario de opción múltiple con múltiple respuesta para determinar cuáles son las normas nacionales e internacionales más conocidas por las estudiantes, los medios que más favorecen la difusión, las campañas más conocidas y las ventajas que se perciben al tener conocimiento de las normas.  Se destaca el bajo grado de difusión que tiene la normatividad y la cantidad de estudiantes que no le encuentran ventajas a tener conocimiento de las normas.
Educación ciudadana herramienta clave para la reconciliación, la convivencia y el fortalecimiento de la democracia
Authors: Piñeres de la Ossa Dora , Páez Rodríguez Graciela , Ardila Ramos Zohamy
Published: June 2020

¿Educación ciudadana para el fortalecimiento de la democracia?  SI, es el reto de abordar este tema y aportarle a los recién firmados Acuerdos para la paz en Colombia. La democracia es justamente el medio para consolidar la paz, es apostarle a la participación ciudadana donde “todos quepan, opinen y tengan derecho a no estar de acuerdo, donde las ideas se defiendan con argumentos y nunca más con armas”[1]. La Educación como factor determinante de la convivencia será la herramienta clave, desde donde se deben iniciar los procesos de reconciliación y convivencia, e ir reconstruyendo humanísticamente, con pluralidad y respeto la fragilidad del tejido social con equidad, inclusión, convivencia y reconstruir una verdadera democracia.

[1] Acuerdo final para la terminación del conflicto. Cartilla pedagógica ABC DEL ACUERDO FINAL.
Representaciones sociales y prácticas de formación profesional
Authors: De La Espriella Arenas Fernando Antonio , Echeverry Serna Diego
Published: June 2020

En este artículo, se muestran los resultados del proyecto de investigación “Representaciones sociales de las prácticas de los estudiantes de Licenciatura en Educación Física de la Universidad de Córdoba y Trabajo Social de la Universidad del Quindío”. En él se develan representaciones que muestran la práctica como un escenario de oportunidades, de aprendizajes, de confrontación de teorías y como transformación de realidades. De igual forma se descubren los miedos, temores, expectativas y desequilibrios cognitivos que sienten los estudiantes a la hora de abordar su práctica de formación profesional. El fundamento teórico sobre el cual se apoya es la teoría de las representaciones sociales desde el enfoque procesual de Denise Jodelet y los postulados de practica reflexiva de Donald Schön y Philippe Perrenoud.
Estrategias didácticas de enseñanza y de aprendizaje en un modelo hacia la educación inclusiva
Authors: Álvarez Oquendo Rafael , Chamorro Benavidez Diana , Giraldo Juan Carlos
Published: June 2020

Este artículo presenta los resultados de una investigación cuyo objetivo fue la implementación de un modelo de educación inclusiva mediado en el diseño de estrategias didácticas de enseñanza y aprendizaje para la asignatura de Inglés, desarrollada con estudiantes de grado octavo de la Institución Educativa El Chiquí del municipio de San Bernardo del Viento, en el departamento de Córdoba. Desde el enfoque cualitativo y sustentado en el método de Investigación-Acción, se propuso el diseño de las estrategias didácticas dos ciclos y cuatro fases: Diagnóstico, Planificación, Acción y análisis –reflexión final. El diagnóstico mostró algunos factores asociados a la desmotivación de los estudiantes frente a los contenidos, las metodologías utilizadas por los docentes en el aula, y la poca utilización de los recursos tecnológicos y didácticos disponibles. Los resultados de las estrategias didácticas de enseñanza y de aprendizaje implementadas, evidenciaron una evolución favorable en los hábitos de estudio y en la motivación de los estudiantes, mayor compromiso al desarrollar sus actividades académicas, y una mejora en el desempeño de sus competencias cognitivas y comunicativasen Inglés.
Influencia de los entornos tecnológicos móviles en los procesos de aprendizaje de las matemáticas.
Authors: Espitia Ramos Norelis Patrica , Sierra Pineda Isabel Alicia
Published: June 2020

En las últimas décadas se ha despertado un especial interés de muchos investigadores en el aprendizaje de las matemáticas; las diferentes problemáticas se asocian al acto de enseñar, así la preocupación por la calidad educativa motiva el uso de nuevas estrategias y recursos para mejorar este proceso. Desde un análisis de la información recolectada a través de métodos cualitativos, esta investigación pretende reflexionar sobre el problema del aprendizaje y la didáctica de las matemática, y sobre los criterios de orden curricular planteados al interior del Proyecto Educativo Institucional en la Institución Educativa Dolores Garrido en el departamento de Córdoba, Colombia. El proyecto se desarrolla con un diseño de investigación acción como una forma de indagación auto reflexiva. Los resultados evidencian que al implementar entornos tecnológicos móviles en los procesos de enseñanza aprendizaje de las matemáticas, se genera transformación en la práctica pedagógica, se favorece la calidad de los aprendizajes de los estudiantes; lo  que se refleja en aspectos como la realización de un trabajo pedagógico más organizado, una integración didáctica de las tecnologías como mediación a los lineamientos curriculares de la institución y una transparencia  en el aprendizaje de las matemáticas que trasciende a cualquier momento y espacio donde los entornos tecnológicos móviles son viables de ser aprovechados.
Sentido de la investigación formativa: Un estudio fenomenológico-hermenéutico en las Escuelas Normales Superiores de Sucre
Authors: Iriarte Pupo Alberto Jesus
Published: June 2020

La formación inicial de maestros ha sido un tema recurrente en la investigación educativa en las últimas cinco décadas. Entre los problemas planteados se destacan: bajos niveles de formación en la capacidad crítica y autoreflexiva; procesos investigativos ortodoxos; bajos niveles en las competencias lectoras y escriturales; inexistencia de una cultura investigativa. Por tanto, en el proceso investigativo llevado a cabo, se propuso el objetivo de develar el sentido que los maestros en formación, pertenecientes a las Escuelas Normales Superiores de Sucre (Colombia), confieren a la investigación formativa.

El abordaje teórico y metodológico se instaura desde una postura basada en la fenomenología hermenéutica. Las técnicas de recolección de información utilizadas, fueron: la entrevista en profundidad y la observación participante. El procesamiento de la información, se abordó desde el Análisis Fenomenológico Interpretativo (IPA), complementado con los métodos reflexivos para ver el sentido de los textos. Seis temas surgieron del análisis de los datos. Para el presente artículo, se darán a conocer algunos resultados encontrados en uno de estos temas en particular: la “Investigariedad: el eidos de la investigación formativa”. Entre las conclusiones del estudio, se resalta la construcción singular que se logró abstraer de los sentidos otorgados por los maestros en formación, sobre el constructo social denominado “investigación formativa”.
De las comunidades de aprendizaje hacia una comunidad de docentes lectores
Authors: Balmaceda Sulayvar Kelly Cristina
Published: June 2020

La lectura crítica es una necesidad en la actualidad, por lo que se requiere poseer habilidades que permitan al individuo leer y comprender el mensaje del texto para relacionar su significado con la realidad que lo circunda. Por esta razón, se ha convertido en un reto para la escuela la formación de lectores críticos, lo cual supone que el profesorado brinde al estudiante las estrategias y herramientas que le permitan comprender diferentes tipos de texto. Partiendo de esta necesidad, y teniendo como marco el Programa Todos a Aprender (PTA) del Ministerio de Educación Nacional, se realizó un estudio desde la Investigación Acción del paradigma cualitativo que buscó transformar la comunidad de aprendizaje (CA) en una comunidad de docentes lectores. Para lograr este fin, se parte de la exploración de las necesidades frente a la lectura, luego, se aplican grupos de discusión con docentes, escenario que permitió develar las concepciones que poseían los docentes sobre la lectura, y en este mismo escenario, se realizó la socialización e implementación de varias estrategias de lectura desde una visión sociocultural, que luego fueron observadas en el desarrollo de las clases de los docentes.
Efecto del tiempo de fermentación sobre la calidad nutricional del ensilaje de pulpa de Coffea arabica L.
Authors: Flórez-Delgado Dixon Fabián
Published: June 2020

La pulpa de café ha sido incorporada en los sistemas de producción pecuarios a través de su uso en silos dada su aceptable composición nutricional. La presente investigación se desarrolló en la finca La Gaviota, localizada en la vereda Matajira del municipio de Pamplonita (Colombia), con el objetivo de evaluar el efecto que tiene el tiempo de fermentación sobre la calidad nutricional del ensilaje de pulpa de café. Se emplearon tres tratamientos: 30, 45 y 90 días de fermentación y cuatro réplicas de 20 kg. Se aplicaron pruebas de estadística descriptiva, Anova de un factor con tres niveles y una significancia del 5 % bajo un diseño aleatorizado. Los parámetros de pH, fósforo (P) y polifenoles presentaron un comportamiento similar (p > 0,05) respecto al tiempo de fermentación, mientras que los valores de proteína, fibra detergente neutro (FDN), digestibilidad in vitro (DIV) y energía metabolizable (EM) —con medias de 13,50 %, 49,85 %, 57,20 % y 4,50 Mcal/kg MS, respectivamente— presentaron los mejores tenores en el T2 con un tiempo de fermentación de 45 días. Los valores de fibra detergente ácido (FDA) y calcio (Ca) fueron superiores en el T4 con 90 días de fermentación. Se concluye que el tiempo de fermentación tiene influencia sobre los parámetros nutricionales del ensilaje de pulpa de café.
A Mobile Health Approach for Improving Outcomes in Suicide Prevention (SafePlan)
Authors: O'Grady Conor , Melia Ruth , Bogue John , O'Sullivan Mary , Young Karen , Duggan Jim
Published: June 2020

Background

Suicide is a prominent cause of death worldwide, particularly among young people. It was the second leading cause of death among those aged 15-29 years globally in 2016. Treatment for patients with suicidal thoughts or behaviors often includes face-to-face psychological therapy with a mental health professional. These forms of interventions may involve maintaining and updating paper-based reports or worksheets in between sessions. Mobile technology can offer a way to support the implementation of evidence-based psychological techniques and the acquisition of protective coping skills.

Objective

This study aims to develop a mobile app to facilitate service users’ access to mental health support and safety planning. This process involved eliciting expert input from clinicians who are actively engaged in the provision of mental health care.

Methods

A survey was distributed to targeted health care professionals to determine what features should be prioritized in a new mobile app relating to suicide prevention. On the basis of the survey results, a clinical design group, comprising 6 members with experience in fields such as mobile health (mHealth), clinical psychology, and suicide prevention, was established. This group was supplemented with further input from additional clinicians who provided feedback over three focus group sessions. The sessions were centered on refining existing app components and evaluating new feature requests. This process was iterated through regular feedback until agreement was reached on the overall app design and functionality.

Results

A fully functional mobile app, known as the SafePlan app, was developed and tested with the input of clinicians through an iterative design process. The app’s core function is to provide an interactive safety plan to support users with suicidal thoughts or behaviors as an adjunct to face-to-face therapy. A diary component that facilitates the generalization of skills learned through dialectical behavior therapy was also implemented. Usability testing was carried out on the final prototype by students from a local secondary school, who are representative of the target user population in both age and technology experience. The students were asked to complete a system usability survey (SUS) at the end of this session. The mean overall SUS rating was 71.85 (SD 1.38).

Conclusions

The participatory process involving key stakeholders (clinicians, psychologists, and information technology specialists) has resulted in the creation of an mHealth intervention technology that has the potential to increase accessibility to this type of mental health service for the target population. The app has gone through the initial testing phase, and the relevant recommendations have been implemented, and it is now ready for trialing with both clinicians and their patients.
An Immersive Multi-User Virtual Reality for Emergency Simulation Training: Usability Study
Authors: Lerner Dieter , Mohr Stefan , Schild Jonas , Göring Martin , Luiz Thomas
Published: June 2020

Background

Virtual reality (VR) is increasingly used as simulation technology in emergency medicine education and training, in particular for training nontechnical skills. Experimental studies comparing teaching and learning in VR with traditional training media often demonstrate the equivalence or even superiority regarding particular variables of learning or training effectiveness.

Objective

In the EPICSAVE (Enhanced Paramedic Vocational Training with Serious Games and Virtual Environments) project, a highly immersive room-scaled multi-user 3-dimensional VR simulation environment was developed. In this feasibility study, we wanted to gain initial insights into the training effectiveness and media use factors influencing learning and training in VR.

Methods

The virtual emergency scenario was anaphylaxis grade III with shock, swelling of the upper and lower respiratory tract, as well as skin symptoms in a 5-year-old girl (virtual patient) visiting an indoor family amusement park with her grandfather (virtual agent). A cross-sectional, one-group pretest and posttest design was used to evaluate the training effectiveness and quality of the training execution. The sample included 18 active emergency physicians.

Results

The 18 participants rated the VR simulation training positive in terms of training effectiveness and quality of the training execution. A strong, significant correlation (r=.53, P=.01) between experiencing presence and assessing training effectiveness was observed. Perceived limitations in usability and a relatively high extraneous cognitive load reduced this positive effect.

Conclusions

The training within the virtual simulation environment was rated as an effective educational approach. Specific media use factors appear to modulate training effectiveness (ie, improvement through “experience of presence” or reduction through perceived limitations in usability). These factors should be specific targets in the further development of this VR simulation training.
Comparisons Between Hypothesis- and Data-Driven Approaches for Multimorbidity Frailty Index: A Machine Learning Approach (Preprint)
Authors: Peng Li-Ning , Hsiao Fei-Yuan , Lee Wei-Ju , Huang Shih-Tsung , Chen Liang-Kung
Published: June 2020

BACKGROUND

Using big data and the theory of cumulative deficits to develop the multimorbidity frailty index (mFI) has become a widely accepted approach in public health and health care services. However, constructing the mFI using the most critical determinants and stratifying different risk groups with dose-response relationships remain major challenges in clinical practice.

OBJECTIVE

This study aimed to develop the mFI by using machine learning methods that select variables based on the optimal fitness of the model. In addition, we aimed to further establish 4 entities of risk using a machine learning approach that would achieve the best distinction between groups and demonstrate the dose-response relationship.

METHODS

In this study, we used Taiwan’s National Health Insurance Research Database to develop a machine learning multimorbidity frailty index (ML-mFI) using the theory of cumulative diseases/deficits of an individual older person. Compared to the conventional mFI, in which the selection of diseases/deficits is based on expert opinion, we adopted the random forest method to select the most influential diseases/deficits that predict adverse outcomes for older people. To ensure that the survival curves showed a dose-response relationship with overlap during the follow-up, we developed the distance index and coverage index, which can be used at any time point to classify the ML-mFI of all subjects into the categories of fit, mild frailty, moderate frailty, and severe frailty. Survival analysis was conducted to evaluate the ability of the ML-mFI to predict adverse outcomes, such as unplanned hospitalizations, intensive care unit (ICU) admissions, and mortality.

RESULTS

The final ML-mFI model contained 38 diseases/deficits. Compared with conventional mFI, both indices had similar distribution patterns by age and sex; however, among people aged 65 to 69 years, the mean mFI and ML-mFI were 0.037 (SD 0.048) and 0.0070 (SD 0.0254), respectively. The difference may result from discrepancies in the diseases/deficits selected in the mFI and the ML-mFI. A total of 86,133 subjects aged 65 to 100 years were included in this study and were categorized into 4 groups according to the ML-mFI. Both the Kaplan-Meier survival curves and Cox models showed that the ML-mFI significantly predicted all outcomes of interest, including all-cause mortality, unplanned hospitalizations, and all-cause ICU admissions at 1, 5, and 8 years of follow-up (P<.01). In particular, a dose-response relationship was revealed between the 4 ML-mFI groups and adverse outcomes.

CONCLUSIONS

The ML-mFI consists of 38 diseases/deficits that can successfully stratify risk groups associated with all-cause mortality, unplanned hospitalizations, and all-cause ICU admissions in older people, which indicates that precise, patient-centered medical care can be a reality in an aging society.
Risk factors of coronary microvascular obstruction (Preprint)
Authors: Li Yong , Lyu Shuzheng
Published: June 2020

BACKGROUND

Coronary microvascular obstruction /no-reflow(CMVO/NR) is a predictor of long-term mortality in survivors of ST elevation myocardial infarction (STEMI) underwent primary percutaneous coronary intervention (PPCI).

OBJECTIVE

To identify risk factors of CMVO/NR.

METHODS

Totally 2384 STEMI patients treated with PPCI were divided into two groups according to thrombolysis in myocardial infarction(TIMI) flow grade:CMVO/NR group(246cases,TIMI 0-2 grade) and control group(2138 cases,TIMI 3 grade). We used univariable and multivariable logistic regression to identify risk factors of CMVO/NR.

RESULTS

A frequency of CMVO/NR was 10.3%(246/2384). Logistic regression analysis showed that the differences between the two groups in age(unadjusted odds ratios [OR] 1.032; 95% CI, 1.02 to 1.045; adjusted OR 1.032; 95% CI, 1.02 to 1.046 ; P <0.001), periprocedural bradycardia (unadjusted OR 2.357 ; 95% CI, 1.752 to 3.171; adjusted OR1.818; 95% CI, 1.338 to 2.471 ; P <0.001),using thrombus aspirationdevices during operation (unadjusted OR 2.489 ; 95% CI, 1.815 to 3.414; adjusted OR1.835; 95% CI, 1.291 to 2.606 ; P =0.001),neutrophil percentage (unadjusted OR 1.028 ; 95% CI, 1.014 to 1.042; adjusted OR1.022; 95% CI, 1.008 to 1.036 ; P =0.002) , and completely block of culprit vessel (unadjusted OR 2.626; 95% CI, 1.85 to 3.728; adjusted-OR 1.656;95% CI, 1.119 to 2.45; P =0.012) were statistically significant ( P <0. 05). The area under the receiver operating characteristic curve was 0.6896 .

CONCLUSIONS

Age , periprocedural bradycardia, using thrombus aspirationdevices during operation, neutrophil percentage ,and completely block of culprit vessel may be independent risk factors for predicting CMVO/NR.
We registered this study with WHO International Clinical Trials Registry Platform (ICTRP)
(registration number: ChiCTR1900023213; registered date: 16 May 2019).http://www.chictr.org.cn/edit.aspx?pid=39057&htm=4.
Key Words: Coronary disease ST elevation myocardial infarction No-reflow phenomenon Percutaneous coronary intervention
Association of Web-Based Physical Education With Mental Health of College Students in Wuhan During the COVID-19 Outbreak: Cross-Sectional Survey Study (Preprint)
Authors: Deng Cheng-Hu , Wang Jing-Qiang , Zhu Li-Ming , Liu He-Wang , Guo Yu , Peng Xue-Hua , Shao Jian-Bo , Xia Wei
Published: June 2020

BACKGROUND

The COVID-19 outbreak has affected people’s health worldwide. For college students, web-based physical education is a challenge, as these course are normally offered outdoors.

OBJECTIVE

The aim of this study was to use data from a web-based survey to evaluate the relationship between the mental health status of college students and their sports-related lifestyles. Problems related to web-based physical education were also examined.

METHODS

A web-based survey was conducted by snowball sampling from May 8 to 11, 2020. Demographic data, mental health status, and sports-related lifestyles of college students in Wuhan as well as issues related to web-based physical education were collected. Mental health status was assessed by the Depression, Anxiety, and Stress Scale (DASS-21).

RESULTS

The study included 1607 respondents from 267 cities. The average scores of the DASS-21 subscales (2.46 for depression, 1.48 for anxiety, and 2.59 for stress) were significantly lower in our study than in a previous study (P<.05). Lower DASS-21 scores were significantly correlated with regular exercise, maintaining exercise habits during the outbreak of COVID-19, exercising more than 1 to 2 times a week, exercise duration >1 hour, and >2000 pedometer steps (all P<.05). None of the three forms of web-based physical education was preferred by more than 50% of respondents. Frequent technical problems were confronted by 1087/1607 students (67.6%). Shape-up exercises (846/1607, 52.6%), a designed combination of exercises (710/1607, 44.2%), and Chinese kung fu (559/1607, 34.8%) were suggested sports for web-based physical education.

CONCLUSIONS

Mental status was significantly correlated with regular exercise and sufficient exercise duration. Professional physical guidance is needed for college students in selected sports. Exercises not meeting students’ preferences, frequent technical problems, and the distant interaction involved in web-based physical education were the main problems that should be solved in future.
Digital Cognitive Behavior Therapy Intervention for Depression and Anxiety: Retrospective Study (Preprint)
Authors: Venkatesan Aarathi , Rahimi Lily , Kaur Manpreet , Mosunic Christopher
Published: June 2020

BACKGROUND

Digital mental health interventions offer a scalable solution that reduces barriers to seeking care for clinical depression and anxiety.

OBJECTIVE

We aimed to examine the effectiveness of a 12-week therapist supported, app-based cognitive behavioral therapy program in improving symptoms of depression and anxiety within 9 months.

METHODS

A total of 323 participants with mild to moderately severe depression or anxiety were enrolled in a 12-week digital cognitive behavior therapy program. The analysis was restricted to participants who provided at least one follow-up assessment after baseline. As a result, 146 participants (45.2%) were included in the analysis—74 (50.7%) participants completed assessments at 3 months, 31 participants (21.2%) completed assessments at 6 months, and 21 participants (14.4%) completed assessments at 9 months. The program included structured lessons and tools (ie, exercises and practices) as well as one-on-one weekly video counseling sessions with a licensed therapist for 12 weeks and monthly check-in sessions for 1 year. The clinically validated Patient Health Questionnaire (PHQ-8) and Generalized Anxiety Disorder Scale (GAD-7) were used to assess depression and anxiety, respectively. Linear mixed-effects modeling was employed to examine changes in depression and anxiety over time.

RESULTS

We observed a significant positive effect of program time on improvement in depression (β=–0.12, P<.001) and anxiety scores (β=–0.10, P<.001). At the end of the 12-week intervention, we observed an average reduction of 3.76 points (95% CI –4.76 to –2.76) in PHQ-8 scores. Further reductions in depression were seen at program month 6 (4.75-point reduction, 95% CI –6.61 to –2.88) and program month 9 (6.42-point reduction, 95% CI –8.66 to –6.55, P<.001). A similar pattern of improvement emerged for anxiety, with a 3.17-point reduction at the end of the 12-week intervention (95% CI –4.21 to –2.13). These improvements were maintained at program month 6 (4.87-point reduction, 95% CI –6.85 to –2.87) and program month 9 (5.19-point, 95% –6.85 to 4.81). In addition, greater program engagement during the first 12 weeks predicted a greater reduction in depression (β=–0.29, P<.001)

CONCLUSIONS

The results suggest that digital interventions can support sustained and clinically meaningful improvements in depression and anxiety. Furthermore, it appears that strong initial digital mental health intervention engagement may facilitate this effect. However, the study was limited by postintervention participant attrition as well as the retrospective observational study design.
Magnetic Mesoporous Silica Composite for Enhanced Preconcentration of Selected Organophosphorus Pesticides in Fruits
Authors: Abidin Nur Husna Zainal , Wan Ibrahim Wan Nazihah , Hanapi Nor Suhaila Mohamad , Saim Nor’ashikin
Published: June 2020

In the present work, MCM-41 coated magnetic particles (Fe3O4-MCM-41) composite was synthesized and employed as an effective adsorbent in magnetic solid phase extraction (MSPE) of three selected organophosphorus pesticides (OPPs) namely chlorpyrifos, diazinon and parathion methyl from grape and strawberry samples prior to high performance liquid chromatography with UV detection (HPLC-UV). The synthesized sorbent was physicochemically and morphologically characterized via Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and N2 adsorption analysis. The main parameters on the extraction efficiency of selected OPPs, including extraction time, desorption solvent, desorption time, and sorbent dosage, were thoroughly optimized. Compared to MCM-41 sorbent, the newly synthesized Fe3O4-MCM-41 adsorbent shows a linear response (0.1-5.00 mg L–1) with good determination coefficients ranging from 0.9900 to 0.9980, low limits detection (LODs), 0.02-0.15 mg L–1 and low limit quantifications (LOQs), 0.06-0.40 mg L–1. The precision as relative standard deviation (%RSD) of the proposed MSPE method was studied at low and high concentration (0.1-5.0 mg L–1) based on intra-day (1.0 to 6.0%, n = 3) and inter-day (1.0 to 7.0%, n = 3), respectively. Fruit matrices were used to assess the field applicability of the sorbents. Comparatively, Fe3O4-MCM-41 achieved excellent percent recovery (85–120%) compared to the MCM-41 (70–110%). The result revealed that the Fe3O4-MCM-41 composite was efficient sorbent with good capability for the preconcentration of selected OPPs from fruit samples.
Isolation and Antibacterial Activity by in vitro and in silico Approach of 6-Deoxyjacareubin Compound from Garcinia latissima Miq. Fruit
Authors: Ambarwati Neneng Siti Silfi , Elya Berna , Malik Amarila , Artha Yuditya , Ahmad Islamudin , Azminah Azminah , Hanafi Muhammad , Omar Hanita
Published: June 2020

The previous research showed that the fraction C from active extract of Garcinia latissima Miq. fruit was active against Bacillus subtilis. This study aims to isolate and identify the active compound as an antibacterial agent from the fraction C. Fraction C was purified by recrystallization using chloroform and n-hexane solvents and then isolated using preparative-thin layer chromatography-silica gel 60 GF254 to give a yellow compound. The antibacterial activity was determined using microdilution with thiazolyl blue tetrazolium bromide indicator against B. subtilis American Type Culture Collection 6633. The isolate was identified using UV-Vis, IR, MS, Proton Nuclear Magnetic Resonance (1H-NMR) and carbon NMR (13C-NMR), and NMR-2D techniques including HMQC and HMBC. Based on the spectroscopic analysis and literature review, the compound was identified as 6-deoxyjacareubin, which is a new compound from Garcinia latissima Miq. The 6-deoxyjacareubin showed antibacterial activity with MIC value of 156.25 ppm and was categorized as a weak antibacterial agent because the MIC value was more than 100 ppm. According to in silico approach to the docking study, 6-deoxyjacareubin showed similar hydrophobic interaction with several amino acid residues including C2565, C2589, G2484, U2590, and U5588 between a native ligand.
Synthesis, Characterization, and Stability Evaluation of β-Carotene Encapsulated in Starch-Chitosan/Tripolyphosphate Matrices
Authors: Lestari Agnes Dyah Novitasari , Siswanta Dwi , Martien Ronny , Mudasir Mudasir
Published: June 2020

This study aims to investigate the synthesis and characterization of β-carotene encapsulated in the blending matrices of starch (native and hydrolyzed starch)-chitosan/TPP (tripolyphosphate) by examining the effects of starch-to-chitosan weight ratio, β-carotene addition level, and TPP addition level on the encapsulation efficiency (EE) and loading capacity (LC); and to evaluate their storage stability. The encapsulation was done by the dropwise addition of ethanolic β-carotene dispersion into the blending matrices. The results of XRD analysis show that the encapsulation process significantly decreases the crystallinity of the starches, chitosan, and β-carotene. Scanning electron microscope (SEM) images reveal that the encapsulation products form irregular lumps. The EE and LC tend to increase with the increase in polymer fraction of matrices and β-carotene addition level, and with the decrease in TPP addition level. The addition of chitosan and the replacement of native starch by hydrolyzed starch tend to increase storage stability of β-carotene encapsulated in the starch matrix because chitosan can act as a good film-forming and antioxidant, while hydrolyzed starch contains amylose amylopectin with a short chain which is better in film-forming ability. These results promote the use of the hydrolyzed starch-chitosan/TPP as a matrix to enhance the stability β-carotene via encapsulations.
Optimasi Algoritme Perkalian Karatsuba dengan Menggunakan Metode Nikhilam II
Authors: Felix
Published: June 2020

Perkalian adalah operasi penting di dalam teknik informatika, misalnya pada bidang kriptografi, kriptanalisis, dan pengolahan citra. Riset-riset mengenai algoritme perkalian terus-menerus dilakukan dan dikembangkan oleh berbagai ahli dari bidang ilmu matematika, teknik informatika, hingga teknik elektro. Algoritme perkalian yang paling populer dikembangkan oleh Anatoly Karatsuba pada tahun 1960 di Uni Soviet. Meskipun telah lama dan telah banyak algoritme perkalian baru yang bermunculan, tetapi algoritme ini masih tetap menjadi pilihan untuk kategori bilangan yang berukuran sedang hingga besar. Teknik divide and conquer diterapkan pada algoritme ini untuk mempercepat proses perkalian. Kelemahan dari algoritme Karatsuba adalah proses rekursif yang terlalu banyak yang menyebabkan waktu eksekusi lebih lama. Metode Nikhilam II adalah algoritme yang dikembangkan di India dan termasuk ke dalam Matematika Weda. Umumnya, Metode Nikhilam II ini digunakan oleh orang awam di India untuk memudahkan perhitungan perkalian harian. Metode ini mampu menggantikan sebagian operasi perkalian menjadi penjumlahan, sehingga bisa lebih optimal. Dalam makalah ini, metode Nikhilam II diterapkan pada bagian base case dari algoritme Karatsuba untuk mengurangi jumlah pemanggilan rekursif. Dengan demikian, algoritme Karatsuba dapat dioptimasi dari segi waktu eksekusi. Hasilnya, algoritme baru ini mampu mengoptimasi waktu eksekusi hingga tiga kali lebih cepat dibandingkan algoritme aslinya.
Challenges of Community Health Education in Improving Quality of Life in Indonesia
Authors: Redjeki Dwi Sogi Sri
Published: June 2020

The purpose of this research is to give understanding about community health education to fill the nation’s independence which has a role to create a healthy and strong society and refer to the ability to: a) make and maintain relationships with others; b) well-interact with people and the environment, so that understanding of health can demonstrate the ability to adapt to a changing environment. The method of this scientific paper is carried out by conducting academic analysis from various aspects of relevant reference sources so as to find new theoretical meaning in order to answer the challenges that occur in society. The conclusion is that the public health paradigm is a new health development strategy that views health issues as a continuous variable, planned in a decentralized system, with service activities that are always promotive to alleviate public health, by professional health workers together with participatory communities.
DETERMINATION OF HEAVY METALS ARSENIC AND CADMIUM IN THE REFILL DRINKING WATER IN PURWOKERTO
Authors: Royani Sri , Fitriana Adita Silvia
Published: June 2020

Refill drinking water production is now rapidly increasing in several regions in Indonesia, including Purwokerto. According to the Regulation of Health Minister of the Republic of Indonesia (Permenkes) Number 492/Menkes/Per/IV/2010, heavy metal is one of the parameters of drinking water quality which has adverse impacts on human health. In this study, Arsenic (As) and Cadmium (Cd) would be studied. Atomic Absorption Spectrometry (AAS) Method was used to find As and Cd concentration in refill drinking water samples. The results showed that only one sample containing As from five samples was collected, but there is being safe for drinking according to Regulation of Health Minister of the Republic of Indonesia (Permenkes) Number 492/Menkes/Per/IV/2010. Meanwhile, Cd was not detected in samples. It can be concluded that refill drinking water samples that were taken from several depots in Purwokerto City are being safe for drinking.
PEMERIKSAAN KANDUNGAN ZAT KIMIA FORMALIN PADA BAKSO IKAN DAN TAHU
Authors: Handayani Tuti , Mutiara Sherly
Published: June 2020

Formaldehyde a toxic chemical compound. Formaldehyde is prohibited for use in food according to the RI Minister of Health Regulation No.033 of 2012 concerning food additives. Meatballs, Fish and Tofu are protein sources of food. This material is easily damaged by microorganisms. There have been many cases of formaldehyde found in food products in Indonesia. The purpose of this study was to determine the presence or absence of formaldehyde in fish, meatball and tofu before and after providing health education. the method used in this study is an experimental method using a Qualitative Analysis approach. The results obtained were found 16  samples (fish and dry fish) is positive of formaldehyde. after providing education to traders the 15 samples still found in the market. That means counselling is not effective as an effort to eliminate formaldehyde in food products.