scholarly journals The Q-Pass Index: A Multifactorial IMUs-Based Tool to Assess Passing Skills in Basketball

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4601
Author(s):  
Arturo Quílez-Maimón ◽  
Francisco Javier Rojas-Ruiz ◽  
Gabriel Delgado-García ◽  
Javier Courel-Ibáñez
Keyword(s):  
Inertial Sensors ◽  
Basketball Players ◽  
Video Cameras ◽  
Different Types ◽  
Practical Tool ◽  
And Performance ◽  
Pattern Variability ◽  
Different Levels ◽  
Practical Measure

Despite being a key sport-specific characteristic in performance, there is no practical tool to assess the quality of the pass in basketball. The aim of this study is to develop a tool (the quality-pass index or Q-Pass) able to deliver a quantitative, practical measure of passing skills quality based on a combination of accuracy, execution time and pass pattern variability. Temporal, kinematics and performance parameters were analysed in five different types of passes (chest, bounce, crossover, between-the-leg and behind-the-back) using a field-based test, video cameras and body-worn inertial sensors (IMUs). Data from pass accuracy, time and angular velocity were collected and processed in a custom-built excel spreadsheet. The Q-pass index (0–100 score) resulted from the sum of the three factors. Data were collected from 16 young basketball players (age: 16 ± 2 years) with high (experienced) and low (novice) level of expertise. Reliability analyses found the Q-pass index as a reliable tool in both novice (CV from 4.3 to 9.3%) and experienced players (CV from 2.8 to 10.2%). Besides, important differences in the Q-pass index were found between players’ level (p < 0.05), with the experienced showing better scores in all passing situations: behind-the-back (ES = 1.91), bounce (ES = 0.82), between-the-legs (ES = 1.11), crossover (ES = 0.58) and chest (ES = 0.94). According to these findings, the Q-pass index was sensitive enough to identify the differences in passing skills between young players with different levels of expertise, providing a numbering score for each pass executed.

scholarly journals Precise Compact System For Ionizing Radiation Detection And Signal Processing With Advanced Components Integration And Electronic Control

2015 ◽  
Vol 66 (4) ◽  
pp. 220-225 ◽  
Author(s):  
Jakub Navařík ◽  
Petr Novák ◽  
Jiří Pechoušek ◽  
Libor Machala ◽  
Dalibor Jančík ◽  
...  
Keyword(s):  
Nuclear Physics ◽  
Mössbauer Effect ◽  
Detection System ◽  
Radiation Detection ◽  
Mossbauer Effect ◽  
Natural Iron ◽  
Different Types ◽  
And Performance ◽  
Physics Experiments

Abstract Quality and performance of a detection system are the crucial parameters in all nuclear physics experiments. This system serves as a source of all signals and noises to be processed. Better performance, higher amplification and lower noises occurrence simplify subsequent signal analysis. In the field of Mössbauer spectroscopy, the spectrum quality and Mössbauer effect are crucial parameters which are affected especially by the quality of the detection system. These parameters were evaluated for different types of a detection setup. Finally an improvement of the spectrum quality by 15% and Mössbauer effect by 7% has been achieved for the natural iron reference absorber measurement in comparison with previous version of the detection system.

scholarly journals Application of Rubrics in the Classroom: A Vital Tool for Improvement in Assessment, Feedback and Learning

2018 ◽  
Vol 12 (1) ◽  
pp. 61 ◽  
Author(s):  
Faieza Chowdhury
Keyword(s):  
Student Performance ◽  
Early Stage ◽  
Effective Feedback ◽  
Assessment Feedback ◽  
Different Types ◽  
Unbiased Manner ◽  
And Performance ◽  
Teaching Learning ◽  
Improve Student Learning

Teaching is filled with spirited debate about the best practices for improving students&#39; learning and performance. Today, educators from different parts of the world are supporting the use of rubrics as an instructional tool and highlighting the enormous contributions that rubrics can make in the teaching-learning paradigm. A rubric is a useful grading tool which can help instructors to grade students&#39; work in a more consistent, reliable and unbiased manner. A well-designed rubric can help students to identify their strengths and weaknesses and be more objective about their own quality of work. Although some studies have examined the benefits of rubrics on student performance levels; nevertheless, research on rubrics is still at an early stage. In this paper we will explore what a rubric is, the different types of rubrics that can be utilized in the classroom and the process of constructing a rubric. We will also discuss how the application of rubrics in teaching can help educators to improve student learning and provide more effective feedback on student performance.

Hybrid Energy Efficient Protocol with Service Differentiation for QoS Provisions in Multi-Hop WSNs

2015 ◽  
Vol 6 (2) ◽  
pp. 27-47
Author(s):  
Amal Bourmada ◽  
Azeddine Bilami
Keyword(s):  
Quality Of Service ◽  
Real Time ◽  
Wireless Sensors ◽  
Service Differentiation ◽  
Hybrid Energy ◽  
Real Time Traffic ◽  
Asset Tracking ◽  
Different Types ◽  
Different Levels

The growing demand of usage of wireless sensors networks (WSNs) in multiple types of applications such as environment monitoring or asset tracking makes the quality-of-service (QoS) a paramount topic in wireless sensors applications. In these applications, each sensor node may collect different types of data with different levels of importance involving a different treatment to meet QoS purpose. Consequently, a sensor network should be ready to spend more resources in transmitting packets that hold more important information. In this paper, the authors propose an enhanced protocol with differentiated services for WSNs called QoS-HEEP. The proposed protocol is an improvement of HEEP protocol while providing requested quality of service for high priority real time traffic, which is distinguished from the low priority and non-real time traffic. Thus, input traffic streams are served based on their priorities. Through simulations using NS Simulator; it is observed that the authors' proposal outperforms more than other protocols developed in the literature for QoS provisions in WSNs.

scholarly journals Antidepressant Potential of Cinnamic Acids: Mechanisms of Action and Perspectives in Drug Development

Molecules ◽  
2019 ◽  
Vol 24 (24) ◽  
pp. 4469 ◽  
Author(s):  
Lúcio Ricardo Leite Diniz ◽  
Marilia Trindade de Santana Souza ◽  
Joice Nascimento Barboza ◽  
Reinaldo Nóbrega de Almeida ◽  
Damião Pergentino de Sousa
Keyword(s):  
Social Life ◽  
Age Groups ◽  
Antidepressant Activity ◽  
Mechanisms Of Action ◽  
Behavioral Disorder ◽  
Cinnamic Acids ◽  
Work Activities ◽  
And Performance ◽  
Different Levels

Depression is a health problem that compromises the quality of life of the world′s population. It has different levels of severity and a symptomatic profile that affects social life and performance in work activities, as well as a high number of deaths in certain age groups. In the search for new therapeutic options for the treatment of this behavioral disorder, the present review describes studies on antidepressant activity of cinnamic acids, which are natural products found in medicinal plants and foods. The description of the animal models used and the mechanisms of action of these compounds are discussed.

An empirical investigation of the relationship between workload and performance

2015 ◽  
Vol 53 (10) ◽  
pp. 2377-2389 ◽  
Author(s):  
Alexander Bruggen
Keyword(s):  
Empirical Evidence ◽  
Data Set ◽  
Content Type ◽  
Capacity Decisions ◽  
Quantitative Performance ◽  
And Performance ◽  
The Relationship ◽  
Practical Implications ◽  
Different Levels

Purpose – The purpose of this paper is to examine the effect of workload on quantitative and qualitative job performance. Different levels of workload can affect performance of employees, and it is important for firms to assess the effect of this in order to improve capacity decisions. The literature is not entirely clear on the relationship and calls for further empirical evidence on that matter. Design/methodology/approach – The study uses field data from a mid-sized grocery supplier. In total, 9,210 observations of 27 employees over three years and eight months are analyzed with different statistical models. Employees all work in the same department so that it is a very homogenous data set. Findings – Results show that there is an inverted U-shape relationship between workload and performance. Output of employees increases up to a certain point after which it decreases. Similarly, the quality of performance is highest under moderate levels of workload, which provides evidence against a tradeoff between quantity and quality. Research limitations/implications – The study uses a unique set of data from one firm, which limits generalizability, but adds to an important stream of literature. Practical implications – Results show how workload has a direct effect on performance. Consequently, firms need to balance the workload in order to be able to maximize the performance of their employees. Originality/value – Despite the relevance of the topic, there is hardly any empirical evidence on the relationship between workload and performance. This study thus contributes to the management literature and provides significant evidence on an inverted U-shape between workload and quantitative performance.

scholarly journals Mems Technology Quality Requirements as Applied to Multibeam Echosounder

2018 ◽  
Vol 25 (4) ◽  
pp. 59-64
Author(s):  
Krzysztof Bikonis ◽  
Jerzy Demkowicz
Keyword(s):  
Inertial Sensors ◽  
Low Cost ◽  
Microelectromechanical System ◽  
Power Efficient ◽  
Inertial Measurement ◽  
Multibeam Echosounder ◽  
Mems Technology ◽  
Measurement Units ◽  
And Performance

Abstract Small, lightweight, power-efficient and low-cost microelectromechanical system (MEMS) inertial sensors and microcontrollers available in the market today help reduce the instability of Multibeam Sonars. Current MEMS inertial measurement units (IMUs) come in many shapes, sizes, and costs - depending on the application and performance required. Although MEMS inertial sensors offer affordable and appropriately scaled units, they are not currently capable of meeting all requirements for accurate and precise attitudes, due to their inherent measurement noise. The article presents the comparison of different MEMS technologies and their parameters regarding to the main application, namely Multibeam Echo Sounders (MBES). The quality of MEMS parameters is crucial for further MBES record-processing. The article presents the results of undertaken researches in that area, and these results are relatively positive for low-cost MEMS. The paper undertakes some vital aspect of using MEMS in the attitude and heading reference system (AHRS) context. The article presents a few aspects of MEMS gyro errors and their estimation process in the context of INS processing flow, as well as points out the main difficulties behind the INS when using a few top MEMS technologies.

scholarly journals METAMETHODICS AS THE BASIS FOR CONSTRUCTING LEARNING ACTIVITIES

2020 ◽  
pp. 67-72
Author(s):  
Светлана Ивановна Поздеева ◽  
Ольга Анатольевна Чубыкина
Keyword(s):  
Teaching And Learning ◽  
Professional Competence ◽  
Educational Activities ◽  
Global Trends ◽  
Effective Learning ◽  
Different Types ◽  
Special Area ◽  
Learning Scenarios ◽  
Different Levels

Ставится проблема усиления качества методической и предметной подготовки будущих педагогов. Предметные и методические дефициты выпускников педагогических университетов актуализируют внимание к вопросам метаметодики, которая трактуется авторами как связующее звено между законами классической дидактики и принципами методик преподавания отдельных учебных предметов. Показано, что еще классики дидактики говорили о необходимости выделения специальной области в педагогике, которая будет обобщать эмпирический методический опыт и тем самым выделять наиболее эффективные формы и методы обучения. Предполагается, что методика может связать парадигмы преподавания и учения, акцентировать внимание на управленческом аспекте педагогической деятельности, выработать эффективные сценарии обучения. Размышления о метаметодике позволяют авторам выйти на то, чтобы выделить особую профессиональную компетентность современного педагога: метаметодическую как совокупность предметного, методического и деятельностного аспектов. Благодаря этому методика может стать новым теоретическим основанием для построения образовательной деятельности на разных уровнях и в разных видах образования. The problem of improving the quality of methodological and subject training of future teachers is raised. Subject and methodological deficits of graduates of pedagogical universities actualize attention to the issues of metamethodics, which is interpreted by the authors as a link between the laws of classical didactics and the principles of teaching methods for individual academic subjects. It is shown that even the classics of didactics spoke about the need to allocate a special area in pedagogy, which will generalize empirical methodological experience and thereby identify the most effective forms and methods of teaching. It is assumed that the methodology can link the teaching and learning paradigms, focus on the managerial aspect of pedagogical activity, and develop effective learning scenarios. Reflections on metamethodics allow the authors to identify a special professional competence of a modern teacher: metamethodics as a set of subject, methodological and activity aspects. Due to this, the methodology can become a new theoretical basis for building educational activities at different levels and in different types of education. In the future, it will be important to study metametodics as an interdisciplinary phenomenon and identify its educational resources for building educational activities taking into account current global trends in the development of education.

scholarly journals Antioxidant Activities of Beef Sausage with Addttion of Kluwak (Pangium edule Reinw)

2019 ◽  
Vol 1 (1) ◽  
pp. 45-54
Author(s):  
Rachmat Budianto ◽  
Hikmah M. Ali ◽  
Effendi Abustam
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Meat Products ◽  
Beta Carotene ◽  
Antioxidant Compounds ◽  
Iron Ions ◽  
Anti Cancer ◽  
Different Types ◽  
Different Levels

Oxidation is one of the important factors that affect the quality of meat products including sausages. To inhibit oxidation, ingredients need to be added in the process of making sausages which act as antioxidants. One plant that functions as a natural antioxidant is kluwak. Kluwak can be used to extend the shelf life. Kluwak 0 days and 40 days fermentation. Aside from being a preservative, kluwak seeds also contain antioxidant compounds and flavonoid groups. Antioxidant compounds that function as anti-cancer in kluwak seeds include vitamin C, iron ions, and Beta carotene which are the work of fermented kluwak seeds for 40 days. This study aimed to determine the effect of different types and levels of kluwak and their interactions on the physical characteristics and antioxidant activity of beef sausages during storage. This study uses two types of kluwak (0 days and fermentation 40 days), different levels and length of storage. Results of this study can increase antioxidant activity and reduce oxidation of lipid.

scholarly journals Avaliação experimental do protocolo RT-WiFi em ambientes abertos

2019 ◽  
Author(s):  
José Roque Betiol Júnior ◽  
Robson Costa ◽  
Luciana Rech ◽  
Ricardo Moraes
Keyword(s):  
Quality Of Service ◽  
Comparative Analysis ◽  
Control Systems ◽  
Ieee 802.11 ◽  
Experimental Validation ◽  
Time Constraints ◽  
Different Types ◽  
Ieee 802.11 Standard ◽  
Different Levels

Networks known as WiFi (IEEE 802.11 standard) are widely used in applications ranging from simple home environments systems to complex control systems network. However, the extensions incorporated into the standard to provide Quality of Service (QoS) are still unable to guarantee time constraints for real-time (RT) communications requirements. This paper presents an experimental validation of the RT-WiFi protocol that was recently proposed and analyzed through simulation. The experimental results demonstrate the feasibility of implementing the RT-WiFi protocol and improving the QoS level of communications through a comparative analysis with the EDCA mechanism, which is a mechanism incorporated in the IEEE 802.11 standard to provide different levels of transmission priority of different types of traffic.

scholarly journals Wireless Loss Detection over Fairly Shared Heterogeneous Long Fat Networks

Electronics ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 987
Author(s):  
Alan Briones ◽  
Adrià Mallorquí ◽  
Agustín Zaballos ◽  
Ramon Martin de Pozuelo
Keyword(s):  
Fair Use ◽  
Transport Protocol ◽  
Network Simulator ◽  
Network Congestion ◽  
Transport Protocols ◽  
Weighted Fairness ◽  
Different Types ◽  
Wireless Transport ◽  
And Performance

The quality of inter-network communication is often detrimentally affected by the large deployment of heterogeneous networks, including Long Fat Networks, as a result of wireless media introduction. Legacy transport protocols assume an independent wired connection to the network. When a loss occurs, the protocol considers it as a congestion loss, decreasing its throughput in order to reduce the network congestion without evaluating a possible channel failure. Distinct wireless transport protocols and their reference metrics are analyzed in order to design a mechanism that improves the Aggressive and Adaptative Transport Protocol (AATP) performance over Heterogeneous Long Fat Networks (HLFNs). In this paper, we present the Enhanced-AATP, which introduces the designed Loss Threshold Decision maker mechanism for the detection of different types of losses in the AATP operation. The degree to which the protocol can maintain throughput levels during channel losses or decrease production while congestion losses occur depends on the evolution of the smooth Jitter Ratio metric value. Moreover, the defined Weighted Fairness index enables the modification of protocol behavior and hence the prioritized fair use of the node’s resources. Different experiments are simulated over a network simulator to demonstrate the operation and performance improvement of the Enhanced-AATP. To conclude, the Enhanced-AATP performance is compared with other modern protocols.

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