scholarly journals Differential Evaluation of Crew Functional Effectiveness

2017 ◽  
Vol 4 (1) ◽  
pp. 88-95
Author(s):  
Viktors Feofanovs
Keyword(s):  
Theoretical Model ◽  
Functional Performance ◽  
Probabilistic Approach ◽  
Statistical Processing ◽  
Objective Evaluation ◽  
Operator Training ◽  
Evaluation Standards ◽  
New Approach ◽  
Differential Evaluation ◽  
High Degree

Abstract The aim of this article is the development of the system and methodology of complex control and evaluation of vehicle operators performance during multifunctional simulation. In order to achieve the above-stated aim it is necessary to solve the following principal tasks: to elaborate a theoretical model of differentiated evaluation of vehicle operator training degree according to different kinds of their functional performance; to develop the method of the differential evaluation of crew performance on full-scale aviation simulators with due consideration of the probabilistic approach on the basis of statistical processing of the data of recorded flight information. The offered theoretical model of the differential evaluation of operator performance and the methodology of standards determination developed on its basis represent a new approach to the creation of automated systems for the objective evaluation of the trainees’ qualification degree. The elaborated system of differential evaluation standards ensures a high degree of objectiveness when evaluating the degree of the vehicle operator qualification and makes it possible to carry out a comparative analysis of the operators’ qualification.

TO STUDY THE DYNAMICS OF IMMUNITY IN BLACK-AND-WHITE COWS DEPENDING ON AGE

2020 ◽  
pp. 49-52
Author(s):  
М.В. ДОВЫДЕНКОВА
Keyword(s):  
Bactericidal Activity ◽  
Phagocytic Activity ◽  
Physiological State ◽  
Age Groups ◽  
Statistical Processing ◽  
Natural Resistance ◽  
Black And White ◽  
Feeding Methods ◽  
High Degree ◽  
The Relationship

Проведена статистическая обработка сформированной базы данных показателей неспецифической резистентности MS «Excel» с целью изучения динамики иммунитета по параметрам бактерицидной, лизоцимной и фагоцитарной активности у крупного рогатого скота черно-пестрой породы разных возрастов. Было установлено, что средние значения показателей лизоцимной и бактерицидной активности у телят в 6 мес были ниже (47,89% и 49,09%, соответственно), чем у животных в 3—4 года (53,75% и 52,81%). Выведено уравнение регрессии, описывающее взаимосвязь между средними показателями фагоцитарной активности и возрастом при высокой степени достоверности (R2=0,90). Изменения лизоцимной и бактерицидной активности в зависимости от возраста были недостоверными (R2=0,58 и R2=0,49, соответственно). Установлена высокая корреляция между бактерицидной и лизоцимной активностью. Отмечена динамика изменения неспецифического иммунитета у коров различных возрастных групп. Создание баз данных и постоянный мониторинг основных показателей естественной резистентности в зависимости от различных факторов (породы, возраста, стадий лактации, кормления, способов содержания), которые влияют на данные показатели, необходимо для оценки физиологического состояния организма животных и их устойчивости к болезням. Statistical processing of the generated MS "Excel" on indicators of non-specific resistance database was carried out with the aim of studying the dynamics of the development of immunity in terms of bactericidal, lysozyme and phagocytic activity in black-and-white cattle of different ages. It was found that the average values of indicators of lysozyme and bactericidal activity in calves at 6 months were lower (47.89% and 49.09%, respectively) than in animals at the age of 3—4 years (53.75% and 52.81%). The equation of regression was derived, it describes the relationship between the average indicators of phagocytic activity and the age with a high degree of reliability (R2=0.90). The changes in lysozyme and bactericidal activity depending on age were dubious (R2=0.58 and R2=0.49, respectively). The high correlation between bactericidal and lysozyme activity was established. It was noticed that the cows of different age groups experienced the dynamics of changes in nonspecific immunity. The creation of databases and constant monitoring of the main indicators of natural resistance, depending on various factors (breed, age, stages of lactation, feeding, methods of keeping) that affect these indicators, is necessary for assessing the physiological state of the animals’ body of and their resistance to diseases.

scholarly journals QUALITY ASSESSMENT, SPECIFICS OF ORGANIZATION AND PROVISION OF MEDICAL CARE TO STROKE PATIENTS ACCORDING TO THE HOSPITAL REGISTER OF VRCPH NAMED AFTER ACADEMICIAN O. I. YUSHCHENKO OF VRC AND VCCH EMS FOR THE PERIOD 2017-2019

World Science ◽  
2020 ◽  
Vol 2 (6(58)) ◽  
pp. 32-37
Author(s):  
Moskovko Serhiy Petrovych ◽  
Fiks Dmytro Oleksandrovych ◽  
Shayuk Alla Volodymyrivna ◽  
Cherkasova Lyubov Anatoliyivna
Keyword(s):  
Medical Care ◽  
Statistical Processing ◽  
Multidisciplinary Care ◽  
Medical Documentation ◽  
Diagnostic Process ◽  
Positive Trend ◽  
Stroke Treatment ◽  
Medical Institutions ◽  
Medical Diagnostic ◽  
High Degree

Currently, one of the most important tasks is to improve the quality of medical services, which becomes possible in retrospective register analysis of medical and organizational technologies, which include algorithms for providing medical care, continuity of medical institutions, protocols for diagnosis and treatment of diseases. The stroke register was created on the basis of medical documentation of hospitals, which are the most typical for the Podillia region of Ukraine. Statistical processing of the results was performed using the licensed statistical package "Statistica 5.5" using parametric evaluation methods. Significant differences in the organization of the medical-diagnostic process and approaches to treatment have been established between the two medical institutions of Vinnytsia in the dynamics of time. There was a positive trend in the time of stroke treatment, the use of drugs with a high degree of evidence and the coverage of patients with specialized, multidisciplinary care in a stroke

scholarly journals Demographic Projections: User and Producer Experiences of Adopting a Stochastic Approach

2016 ◽  
Vol 32 (4) ◽  
pp. 947-962 ◽  
Author(s):  
Kim Dunstan ◽  
Christopher Ball
Keyword(s):  
New Zealand ◽  
Probabilistic Approach ◽  
Stochastic Approach ◽  
New Approach ◽  
Demographic Projections ◽  
Statistical Agencies

Abstract Statistics New Zealand is one of the few national statistical agencies to have applied a stochastic (probabilistic) approach to official demographic projections. This article discusses the experience and benefits of adopting this new approach, including the perspective of a key user of projections, the New Zealand Treasury. Our experience is that the change is less difficult to make than might be expected. Uncertainty in the different projection inputs (components) can be modelled simply or with more complexity, and progressively applied to different projection types. This means that not all the different demographic projections an agency produces need to adopt a stochastic approach simultaneously. At the same time, users of the projections are keen to better understand the relative certainty and uncertainty of projected outcomes, given the important uses of projections.

Can the functional impact of childhood visual impairment be assessed? A preliminary trial of VIS-Ability

2019 ◽  
Vol 37 (3) ◽  
pp. 205-212
Author(s):  
Susan L Silveira ◽  
Robyn Cantle Moore
Keyword(s):  
Visual Impairment ◽  
Delphi Study ◽  
Functional Performance ◽  
New Approach ◽  
Children And Young People ◽  
Functional Impact ◽  
Preliminary Trial ◽  
Clinical Environments ◽  
Clinical Measurements ◽  
Continuous Use

It is accepted that support for children with visual impairment should aim at mitigating for the functional impact experienced. Assessment for support should focus on this functional impact. However, it is now common practice that children in Australia are assessed in clinical environments that do not adequately reflect a child’s everyday functional performance. This article presents a preliminary trial that investigated VIS-Ability – a new approach aimed at identifying behaviours that indicate the functional impact of childhood visual impairment. VIS-Ability is a tool that derived from an e-Delphi study in which professionals experienced in the management of children with visual impairment identified four key areas related to functional impact. The behaviours believed to indicate this impact were also identified and included in VIS-Ability, as simple statements that questioned impact on use of vision in the immediate environment, on spontaneous and continuous use of vision, and on coordination of vision with other tasks. A total of 12 children with visual impairment and no additional disabilities consented to participate in the VIS-Ability preliminary trial. All participants completed VIS-Ability (based on behaviours), and an aggregated result was then compared to the child’s performance on a validated, self-reported (activity-based) questionnaire named the Functional Vision Questionnaire for Children and Young People, 36 items (FVQ_CYP 36). When participant results on VIS-Ability were compared to FVQ_CYP (36) scores, an association between the assessment of functional impact made by each instrument (VIS-Ability: FVQ_CYP 36) was evident. Support systems for children with visual impairment must be founded in assessment that reveals the child’s true needs. The preliminary trial presented a new approach to identifying functional impact named VIS-Ability, an approach that identifies impact through the presence of behaviours rather than clinical measurements. Further evaluation of VIS-Ability will reveal whether this approach assists with the development of better clinical and educational understanding of childhood visual impairment.

scholarly journals A New Approach to Decoupled Non-Resonant Polishing

Micromachines ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 484
Author(s):  
Yucheng Li ◽  
Xiaoqin Zhou ◽  
Guilian Wang ◽  
Peiqun Ma ◽  
Rongqi Wang
Keyword(s):  
Theoretical Model ◽  
Vibration Frequency ◽  
Theoretical Studies ◽  
Workpiece Surface ◽  
New Approach ◽  
Structured Surfaces ◽  
Processing Demands ◽  
The Stability ◽  
Polishing Tool ◽  
Very High

Two-dimensional vibration-assisted polishing (2D-VAP) is a new polishing approach proposed in recent years, which is considered to be very suitable for the polishing of micro-optical parts and micro-structured surfaces. The advantages of the 2D-VAP approach are as follows: A very high relative velocity can be obtained between the workpiece and the polishing tool; the desired motion trajectory can be formed in one polishing cycle. However, there are still some problems to be solved in the 2D-VAP approach, mainly involving: The vibration frequency of the resonant excitation cannot be regulated, which makes it difficult to adapt to the processing demands of different materials; the theoretical model of removal function has been studied in few papers; and motion coupling occurs easily between the horizontal and vertical directions, which affects the trajectory synthesized at the polishing tool. In order to solve these problems, a new approach to decoupled non-resonant polishing is developed in this paper, and its effectiveness is investigated by the theoretical analysis and polishing experiments. Theoretical studies of removal function show that the vibration frequency, vibration amplitude and loading force are proportional to the removal depth. The comparison of experimental and modeling results of removal function show that they have good coherence, and the correctness of the theoretical model of removal function is verified. In addition, the stability experiments of removal function prove that the polishing approach has better stability and is beneficial to the convergence of workpiece surface.

Evaluation of Horseradish Peroxidase for the Treatment of Estrogenic Alkylphenols

2005 ◽  
Vol 40 (2) ◽  
pp. 145-154 ◽  
Author(s):  
Monika Wagner ◽  
James A. Nicell
Keyword(s):  
Hydrogen Peroxide ◽  
Reaction Time ◽  
Horseradish Peroxidase ◽  
Estrogenic Activity ◽  
Complete Disappearance ◽  
Reaction Products ◽  
Compound A ◽  
New Approach ◽  
Microtox Toxicity ◽  
High Degree

Abstract The xenoestrogen alkylphenols 4-nonylphenol (3.4 mg/L) and octylphenol (6.0 mg/L) were oxidized by hydrogen peroxide using horseradish peroxidase (HRP) as a biocatalyst. Substrate transformation required about one mole of peroxide per mole of phenolic compound. A high degree of conversion of alkylphenol was achieved within a 3-h reaction time. In the case of 4-nonylphenol, HRP treatment led to complete disappearance of Microtox toxicity. Results of the yeast estrogen screen (YES) assay demonstrated that the reaction products of HRP-catalyzed 4-nonylphenol conversion lacked estrogenic activity. A new approach to the YES assay has been suggested based on observations made during this study.

OLED degradation described by using a time-dependent local relaxation model

2005 ◽  
Vol 871 ◽  
Author(s):  
Benoît Racine ◽  
Christophe Féry ◽  
Armand Bettinelli ◽  
Henri Doyeux ◽  
Salvatore Ciná
Keyword(s):  
Constant Current ◽  
New Approach ◽  
Single Mechanism ◽  
Low Luminance ◽  
Driving Condition ◽  
Local Relaxation ◽  
Almost All ◽  
High Degree ◽  
Stretched Exponential Decay ◽  
Main Relaxation

AbstractThe main mechanisms responsible for the luminance degradation in OLEDs driven under constant current has not yet been identified. In this paper we propose a new approach to describe the intrinsic mechanisms involved in the OLED aging. We will first show that a stretched exponential decay can be used to fit almost all the luminance vs time curves obtained under different driving conditions. In this way we are able to prove that they can all be described by employing a single free parameter model.By using as an approach based on local relaxation events, we will demonstrate that a single mechanism is responsible for the dominant aging process. Furthermore, we will demonstrate that the main relaxation event is the annihilation of one emissive center.We will then use our model to fit all the experimental data measured under different driving condition, and show that by carefully fitting the accelerated luminance lifetime-curves, we can extrapolate the low-luminance lifetime needed for real display applications, with a high degree of accuracy.

Professional Development: Caring Teachers Can Realize the Vision of the Standards

1996 ◽  
Vol 1 (9) ◽  
pp. 738-744
Author(s):  
Ray Robicheaux
Keyword(s):  
International Comparisons ◽  
The United States ◽  
Thought Process ◽  
National Assessment ◽  
Evaluation Standards ◽  
New Approach ◽  
Grass Roots ◽  
Caring Teachers ◽  
Science Community ◽  
Mathematics And Science

What does it mean to “know” mathematics? This philosophical question was initially debated before the framing of the Currculum and Evaluation Standards for School Mathematics (NCTM 1989). For several years, “knowing” mathematics has meant knowing a set body of rules and procedures; more specifically, “knowing” mathematics has meant “knowing how” to perform an algorithm. Students in the United States fared poorly on problem solving and reasoning questions as measured by the National Assessment of Educational Progress (Carpenter 1988); their status has been even worse in international comparisons in this area (Steen 1987). These combined findings have caused people in business and indusby, the mathematics and science community, and the educational community to call for reform of mathematics education. The question has become one of either “fixing” what we have or forging an entirely new approach that focuses on mathematics as a complex, holistic thought process featuring heuristics and analyses. The latter interpretation of “knowing” mathematics has prevailed, bolstered by a broad-based, grass roots following. to become the vision of the Standards.

The Problem of Consideration Torsion Emergence in Beams

2018 ◽  
Vol 7 (3.2) ◽  
pp. 141 ◽  
Author(s):  
Sergiy Hudz ◽  
Grygorii Gasii ◽  
Volodymyr Pents
Keyword(s):  
Theoretical Model ◽  
Bearing Capacity ◽  
Work Conditions ◽  
Steel Beams ◽  
New Approach ◽  
Initial Imperfections ◽  
Advantages And Disadvantages ◽  
Internal Forces ◽  
Partially Restrained ◽  
Material Saving

The calculation of the steel unrestrained and partially restrained roof beams with initial imperfections main stages is discussed. Restraining can be done by structures attached to the steel beams, namely, profiled flooring and discrete joints. On the basis of the new approach to the internal forces analysis and the geometric properties specification, the purpose was to find and describe the differences in the beam work as the part of roofing, which distinguishes it from the work conditions of the free supported beam. The features of the beam operation with the joint flexural and torsion are singled out. The need to improve the existing theoretical model for present deficiencies elimination is indicated. The bearing capacity determining methods for the flexible elements stability exposed to bending and bending with torsion are compared. Their advantages and disadvantages are revealed. It is proposed to increase the material saving by applying calculations. At the end of the article, conclusions regarding the consideration of investigated factors are given.  

Cardio-respiratory fitness and functional performance in patients with a recent diagnosis of colorectal cancer.

2018 ◽  
Vol 36 (4_suppl) ◽  
pp. 804-804
Author(s):  
Alejandro Alvarez-Bustos ◽  
Lourdes Gutierrez Gutierrez Sanz ◽  
Beatriz Nuñez García ◽  
Maria Soriano ◽  
Carmen Fiuza-Luces ◽  
...  
Keyword(s):  
Physical Activity ◽  
Colorectal Cancer ◽  
Muscular Strength ◽  
Functional Performance ◽  
Hospital Setting ◽  
Objective Evaluation ◽  
Walk Test ◽  
Physical Capability ◽  
Recent Diagnosis ◽  
Minute Walk

804 Background: Physical capability describes the ability to do the physical tasks of everyday living. Oncologists usually evaluate physical capability through anamnesis generating a performance status (PS) score. Some authors have proposed the use of cardiorespiratory reserve, muscular strength and objective evaluation of physical activity to avoid the subjective, unreliable and non-reproducible condition of PS. Methods: Patients with a recent diagnosis of colorectal cancer who accepted to participate were evaluated at the hospital setting. Walking speed was evaluated through both one-mile walk test and six-minute walk test. VO2max was calculated through the Kilne formula. Muscular strength was measured through dynamometry (hand-grip) and “sit to stand” test. Physical activity was objectively evaluated with accelerometers. Fatigue was evaluated through the PERFORM questionnaire (12-60). ECOG was evaluated by the medical oncologist. Results: 100 pats were recruited between March 15 and Jul 17. ECOG O/1/2 (80/14/2). 40 (40 %) were metastatic. Mean age 66 (25-81), Sex M/F; 68/32. Conclusions: Objective evaluation of physical condition is feasible at the hospital setting. There were no differences in BMI, heart rate, fatigue, muscular strength and objective functional performance (weekly PA) between localized and metastatic CRC. In metastatic pts with an excellent ECOG-PS the time to walk one mile and the estimated VO2max could be more sensitive than ECOG to evaluate the functional capacity impairment. In pts with cancer the One- mile walk test could be superior to the Six-minute walk to estimate the cardiorespiratory fitness. The objective evaluation of physical condition is a useful additional tool to select pts for aggressive therapies. [Table: see text]

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