scholarly journals Algorithmic Optimization of the Calculation with the Consideration of the Interconnection of the Basic Economic Parameters of the Flight Route of the Model Air Carrier

2020 ◽  
Vol 28 (1) ◽  
pp. 34-39
Author(s):  
Stanislav Szabo ◽  
Monika Blistanova ◽  
Sebastian Mako ◽  
Iveta Vajdova ◽  
Marek Pilat
Keyword(s):  
Air Transport ◽  
Load Factor ◽  
Calculation Algorithm ◽  
Chi Square ◽  
Algorithmic Optimization ◽  
Comprehensive Picture ◽  
Flight Route ◽  
The Individual ◽  
Break Even Point ◽  
Determining Factor

AbstractThe load factor is the determining factor for airlines in economic terms and the prediction of the future development of the flight route. The combination of load factor and break-even point provides the airline with a comprehensive picture of the business of the flight route and the optimization of pricing for the flight route. The purpose of the article is to propose and adapt the development of air transport prices on a given line using maximally recalculated values and maximize profit. The optimized calculation algorithm then facilitates the understanding of the individual steps of the load factor calculation and the monitoring of price development by means of the chi-square mathematical method by which we observed the interconnection of the ticket price and the load factor. To describe the problem, we chose the Bratislava – Larnaca route.

THE SCIENCE OF JUDICIAL PSYCHOLOGY

2019 ◽  
Vol 12 (2) ◽  
pp. 78-87
Author(s):  
Petru TĂRCHILĂ
Keyword(s):  
Criminal Behavior ◽  
Cultural Context ◽  
Scientific Explanation ◽  
Preventive Measures ◽  
Psychosocial Characteristics ◽  
Legal Norms ◽  
Behavioral Profile ◽  
The Individual ◽  
Determining Factor ◽  
Determinant Factor

Judicial psychology is the science that analyzes and tries to understand the criminal phenomenon in general and its determinant factor in particular, by the complexity of factors that generate it and by the diversity of its forms of manifestation. Although the determining factor of criminal behavior is always subjective being generated by the psychic of the offender, this aspect must be correlated with the context in which it manifests itself: social, economic, cultural context etc. Judicial psychology investigates the behavior of the individual in all its aspects, seeking a scientific explanation of the mechanisms and factors enhancing criminal favors, thus enabling the identification of the preventive measures to be taken to reduce the categories of offenses. It studies the psycho-behavioral profile of the offender, identifying the causes that determined its behavior in order to take preventive measures.The domain of judicial psychology is mainly deviance, conduct that departs from the moral or legal norms that are dominant in a given culture. The object of judicial psychology is the criminal act, correlated with the psychosocial characteristics of the participants in the judicial action (offender, victim, witness, investigator, magistrate, lawyer, civil party, educator, etc.). The science of judicial psychology also analyzes how these characteristics appear and manifest themselves in concrete and special conditions of their interaction in three phases of the criminal act: the pre-criminal phase, the actual criminal phase and the post-criminal phase.

scholarly journals Discoloration of Historical Plastic Objects: New Insight into the Degradation of β-Naphthol Pigment Lakes

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2278
Author(s):  
Anna Micheluz ◽  
Eva Mariasole Angelin ◽  
João Almeida Lopes ◽  
Maria João Melo ◽  
Marisa Pamplona
Keyword(s):  
Light Exposure ◽  
Molecular Structures ◽  
Conservation Science ◽  
Organic Pigment ◽  
Organic Pigments ◽  
Before And After ◽  
The Individual ◽  
Determining Factor ◽  
Insight Into ◽  
Historical Samples

Light is a determining factor in the discoloration of plastics, and photodegradation processes can affect the molecular structures of both the polymer and colorants. Limited studies focused on the discoloration of heritage plastics in conservation science. This work investigated the discoloration of red historical polyethylene (PE) objects colored with PR 48:2 and PR 53:1. High-density and low-density PE reference polymers, neat pigment powders, and historical samples were assessed before and after accelerated photoaging. The applied methodology provided insight into the individual light-susceptibility of polyethylenes, organic pigment lakes, and their combined effect in the photoaging of historical plastic formulations. After light exposure, both PE references and historical samples yellowed, PR53:1 faded, and PR 48:2 darkened; however, both organic pigments faded severely in the historical samples. This highlights the role played by the plastic binder likely facilitating the pigment photofading. Fourier transform infrared spectroscopy and mass spectrometry techniques—EGA-MS, PY-GC/MS, and TD-GC/MS—were successfully employed for characterizing the plastic formulations and degradation. The identification of phthalic compounds in both aged β-naphthol powders opens new venues for studies on their degradation. This work’s approach and analytical methods in studying the discoloration of historical plastics are novel, proving their efficacy, reliability, and potentiality.

scholarly journals Effectiveness of National Airlines in Europe – the DEA Approach

2016 ◽  
Vol 16 (2) ◽  
pp. 103-118 ◽  
Author(s):  
Agata Żółtaszek ◽  
Renata Pisarek
Keyword(s):  
Low Cost ◽  
Air Transport ◽  
Competitive Environment ◽  
Load Factor ◽  
Data Envelopment ◽  
Eu Member States ◽  
Analysis Methodology ◽  
Low Cost Carriers ◽  
Dea Approach ◽  
Regional Airports

Abstract National airlines operate in a highly competitive environment. EU airlines face a challenge to compete with low cost carriers, as a result of the liberalization process in the sector. European flag airlines of non-EU member states, not benefiting from liberalization, are forced to compete internationally. This research is focused on national carriers, as they provide the majority of service to and from central and regional airports. Therefore, to establish the most efficient entities on the passenger air transport market, DEA (Data Envelopment Analysis) methodology, has been utilized. The purpose of this paper is to evaluate the effectiveness of 29 chosen national airlines in Europe in the year 2013, using the DEA approach, to pinpoint the subset of fully-efficient market leaders, as well as potential sources of inefficiency, among less effective carriers. The analysis incorporates information on inputs (e.g. fleet, number of employees, number of countries and airports served) and outputs (revenue, annual passengers carried, load factor). The results show that more than 40% (12 of 29) researched airlines are effective and the other 34% are near-efficient. Moreover, outcomes suggest that “going big” may not increase effectiveness. It is harder to achieve full efficiency for big carriers than small ones.

scholarly journals Associations between Modifiable Health-Risk Behaviors and Personality Types

2017 ◽  
Vol 8 (2) ◽  
Author(s):  
Jon C. Schommer ◽  
Paul D. Tieger ◽  
Anthony W. Olson ◽  
Lawrence M. Brown
Keyword(s):  
Health Risk ◽  
Risk Behaviors ◽  
Statistical Significance ◽  
Personality Type ◽  
Health Risk Behaviors ◽  
Personality Types ◽  
Chi Square ◽  
Related Stress ◽  
The Individual ◽  
Chi Square Analysis

Objectives: The first objective for this study was to explore if characteristics of personality type (using the Preferred Communication Style Questionnaire) are associated with the following modifiable health-risk behaviors: smoking, exercise, alcohol consumption, nutrition, sleep, depression-related stress, anxiety-related stress, healthcare professional usage, and self-discipline. The second objective for this study was to explore if characteristics of personality type are associated with (1) the quality of patient-physician relationships, (2) patient-physician communication, and (3) preferred method for receiving information. Methods: Data were collected from 10,500 adult individuals residing in the United States via an on-line, self-administered survey coordinated by Qualtrics Panels from March 14-30, 2016. Chi-square analysis was used for making comparisons between categories of personality types and items related to health-risk behaviors. Statistical significance was set at p < 0.05. However, chi-square analysis with large sample sizes (e.g. 10,500 in this study) readily yields statistical significance. Practical significance was set at four or more percentage points above or below the overall mean. Results: Regarding objective 1, personality type was associated with all nine health-risk behaviors studied. Personality types within the Experiencer temperament (17% of the U.S. population) accounted for 46% of the undesirable scores we computed for health-risk behaviors. The Idealist temperament (17% of population) accounted for 32% of the undesirable scores. Conceptualizers (10% of population) accounted for 17% of the undesirable scores and Traditionalists (46% of population) accounted for 5% of the undesirable scores. Regarding objective 2, the findings showed that personality type was associated with (1) the importance people place on the patient-physician relationship, (2) which characteristics of that relationship are most desirable, (3) desire for more communication with their physician, and (4) the preferred method for receiving information. Discussion and Conclusions: Precision medicine has been proposed as a way to create a new taxonomy of disease that uses individual specific data to develop accurate diagnosis, targeted treatment, and improved health outcomes. Based on the findings of this study, we propose that inclusion of personality type is an important component of these efforts so that the health care system can conform more to the individual patient in order to increase engagement and adherence, reduce errors, minimize ineffective treatment and waste, and can be cost effective. Conflict of Interest Co-author, Paul Tieger is CEO of SpeedReading People, LLC which holds copyright for the Individual Wellness Plan and Adherence Predictive Index tools that are mentioned in this manuscript.   Type: Original Research

scholarly journals Effect of Different Doses of 17 Α -Methyltestosterone on Masculinization, Pre-Post Treatment Growth Parameters and Condition Factor of Sarotherodon Melanotheron in Pond System

2021 ◽  
pp. 56-62
Author(s):  
Theophilus Apenuvor ◽  
John Blay ◽  
Joseph Aggreyfynn ◽  
Simon Drafor
Keyword(s):  
Condition Factor ◽  
Growth Parameters ◽  
Post Treatment ◽  
Optimum Level ◽  
Male Population ◽  
Chi Square ◽  
Significant Difference ◽  
The Individual ◽  
Chi Square Analysis ◽  
Sarotherodon Melanotheron

Over-population and stunted growth had been major challenges in the culture of tilapia. The use of synthetic androgen 17- α Methyl Testosterone (MT) was a breakthrough. However, its optimum level towards effective masculinization and growth is a concern. The aim of this research was to ascertain the optimum level of MT towards effective all-male population production and growth of Black-Chinned tilapia. In the present study, the effect of different dose rates of synthetic androgen 17-α Methyl Testosterone (MT) i.e., 0, 30, 60, and 120 mg of the hormone per kg of feed on sex, growth, and condition of Black-Chinned tilapia was evaluated. MT was administered orally by using powdered dry starter feed (Crude Protein 40 %) and Ethanol. The fry was fed for 30 days in the experimental tanks. At the end of the experiment, the sex ratios were determined by examining the operculum coloration as a means of sex identification. Growth performance was monitored by measuring and recording the morphometric characteristics. Bodyweight and total length of the fish on the start of feeding, end of feeding (one month sex reversal period), and two months after feeding were measured. The results of the present study showed that all MT receiving treatment showed a significantly higher male proportion than the control (0 mg MT/kg feed individuals). In all MT treatments groups, the control expects the 30 mg MT/kg in feed individuals’ deviate significantly from the normal 1:1 sex ratio (Chi-square analysis). The dose rate of 120 mg MT /kg feed resulted in the maximum male population (92.7%). Hence, for an effective high percentage of all-male population production in Black-Chinned tilapia, 120 mg MT /kg in feed is recommended. In terms of growth and condition factor, all the individual treatments, as well as the control, showed no significant difference. All the treated individuals showed similar condition factors during the pre and post-treatment, however, the individuals treated with 30 mg MT /kg feed exhibited better condition during the pre-treatment than the post-treatment period. Temperature, pH and dissolved oxygen recorded in this study were within the desirable limit for tilapia.

scholarly journals Are Personality Types Related to Cyberbullying Behavior Trends in Adolescents?

2020 ◽  
Vol 8 (3) ◽  
pp. 307
Author(s):  
Desi Christin Saragih ◽  
Heni Dwi Windarwati ◽  
Ayut Merdikawati
Keyword(s):  
Social Media ◽  
Sampling Technique ◽  
Personality Types ◽  
External Factors ◽  
Social Aspect ◽  
P Value ◽  
Developmental Tasks ◽  
Chi Square ◽  
10Th Grade ◽  
The Individual

Adolescent growth and development is influenced by 2 factors, namely internal and external factors. Internal factors are factors that influence the fulfillment of developmental tasks originating from within the individual, both physical and psychological, while external factors are factors that influence the fulfillment of developmental tasks originating from outside the individual self. There are several examples of external factors, namely biological and physical environment, psychosocial and depression, family and cultural factors, and economic factors. Psychosocial factors involve psychological and social aspects. The social aspect can be done without having to face to face directly or can be done online using social media. the freedom of a person to use social media causes various abuses of social media, for example cyberbullying. Cyberbullying in adolescents is influenced by several factors, namely personality type, perception of the victim, the role of parent and child interaction. The research aims to determine the relationship of personality types with the tendency of cyberbullying behavior in adolescents. The study was conducted on 10th grade high school teenagers in Malang. The sample was 126 students with a purposive sampling technique. Data was collected using Eysenck Personality Questionare and cyberbullying instruments. Data were analyzed using Chi Square test. There is no significant relationship between personality types and the tendency of cyberbullying behavior in 10th grade teenagers in Malang with Asymp. Sig 0.128 or p-value> 𝞪 (0.05).

scholarly journals Multicriterial analysis of the accessibility of public transport stops in Cracow

2020 ◽  
Vol 23 (4) ◽  
pp. 32-41
Author(s):  
Martin Bárta ◽  
Tomas Masopust
Keyword(s):  
Public Transport ◽  
Multicriteria Analysis ◽  
Buffer Zone ◽  
Research Area ◽  
Transport Accessibility ◽  
Synthetic Accessibility ◽  
Comprehensive Picture ◽  
The Mean ◽  
The Individual ◽  
The City

This study deals with the synthesis of selected attributes of public transport accessibility. The aim is to present a new method of multi-criteria analysis. As the research area, the city of Cracow has been chosen. The GTFS (General Transit Feed Specification) system has been used to obtain traffic data for buses and trams within the city‘s transport company (MPK Krakow). The analysis itself consists of 4 main accessibility indicators (walking time to each stop, number of lines, directions, and connections from each stop). The problem of exceeding the stops accessibility beyond the administrative border of Cracow has been solved by using a 500 m wide buffer zone around the city. To connect the individual layers of indicators into a multicriteria analysis, the Voronoi diagram function has been applied. The results of the method are presented in the form of synthetic maps of transport accessibility for each bus and tram stop in Cracow. Together with the synthetic accessibility maps, an index of a stop importance has been created as well, which consists of the sum of the mean percentages from 3 indicators (number of lines, directions, connections). The synthetic method used and acquired detailed values not only for the city of Cracow as a whole, but also its individual parts make it possible to provide a comprehensive picture of accessibility by public transport. This multicriteria analysis can also be extended for a comparative study of selected cities.

scholarly journals Ideological Diversity and Birth Control Differentials in Pakistan: A Study of Islamabad

2019 ◽  
Vol 5 (2) ◽  
pp. 413-420
Author(s):  
Sajid Mahmood Awan
Keyword(s):  
Family Planning ◽  
Age Factors ◽  
Capital City ◽  
Personal Attributes ◽  
Final Decision ◽  
Religious Texts ◽  
The People ◽  
Grave Problem ◽  
The Individual ◽  
Determining Factor

Population explosion was not a grave problem in the early days of Islam or in the period of Islamic legislation. Thus, no explicit negation or affirmation of it is available either in the religious texts or in the religious jurisprudence or law. That is why presently the ulema from both the ends  the opponents as well as the proponents of family planning, extract some selective Quranic verses, Ahadith and inferences of jurisprudence in favour of their respective viewpoints. Such diverging views have made the future of family planning programmes doubtful in Pakistan. With this background, the present study shows that in the contemporary situation, it is solely the individual who makes the final decision about approving or disapproving family planning. This decision-making process is influenced by the personal attributes of the practitioners. In order to evaluate these attributes, the researcher has attempted to analyze and highlight the perception of family planning by Muslim residents of Islamabad i.e. the Capital city of Pakistan. The people surveyed are predominantly from different social, geographical and economic backgrounds and from different religious callings, along the sectarian continuum. The researcher’s task has thus been to observe the responses and to point out whether the objective variables i.e. geographical, income and class, occupation and age factors etc. are more significantly associated with knowledge, attitude and practice of family planning or the subjective variables like religion and sect appear to be more important determining factor of family planning practice in a traditional society like that of Pakistan.

scholarly journals Hubungan Kepuasan Kerja dengan Kinerja Perawat di Rumah Sakit

2021 ◽  
Vol 21 (3) ◽  
pp. 1135
Author(s):  
Raja Syafrizal ◽  
Yulihasri Yulihasri ◽  
Zifriyanthi Minanda Putri
Keyword(s):  
Job Satisfaction ◽  
Work Performance ◽  
Statistical Tests ◽  
Sampling Technique ◽  
Cross Sectional Study ◽  
P Value ◽  
Chi Square ◽  
Cross Sectional ◽  
Low Performance ◽  
The Individual

The performance of nurses can be seen from several cases that occur in hospitals. The incidence of falls in patients, nosocomial infections, inadequate documentation is the result of nurses' low performance. Factors that affect the performance of nurses in hospitals are job satisfaction. So this study aims to describe the relationship between job satisfaction and nurse performance. This study used a cross-sectional study design with a sample of 85 nurses at Arosuka Hospital using proportional sampling technique. The research instrument used a job satisfaction survey questionnaire and the Individual Work Performance quasi (IWPQ) and statistical tests used frequency distribution and chi-square tests. The results showed that the majority of nurses' job satisfaction was in the satisfied category as much as 56.5% and the majority of nurses' performance in the high category was 51.8%. Then obtained a significant relationship between job satisfaction and nurse performance with a p-value of 0.000. So it is expected that hospitals can pay attention to aspects of nurse job satisfaction in making policies

scholarly journals Intraindividual double burden of overweight or obesity and micronutrient deficiencies or anemia among women of reproductive age in 17 population-based surveys

2020 ◽  
Vol 112 (Supplement_1) ◽  
pp. 468S-477S ◽  
Author(s):  
Anne M Williams ◽  
Junjie Guo ◽  
O Yaw Addo ◽  
Sanober Ismaily ◽  
Sorrel M L Namaste ◽  
...  
Keyword(s):  
Population Based ◽  
Micronutrient Deficiency ◽  
High Income ◽  
Reproductive Age ◽  
Micronutrient Deficiencies ◽  
Women Of Reproductive Age ◽  
Chi Square ◽  
Double Burden ◽  
Middle Income ◽  
The Individual

ABSTRACT Background Rising prevalence of overweight/obesity (OWOB) alongside persistent micronutrient deficiencies suggests many women face concomitant OWOB and undernutrition. Objectives We aimed to 1) describe the prevalence of the double burden of malnutrition (DBM) among nonpregnant women of reproductive age, defined as intraindividual OWOB and either ≥1 micronutrient deficiency [micronutrient deficiency index (MDI) &gt; 0; DBM-MDI] or anemia (DBM-anemia); 2) test whether the components of the DBM were independent; and 3) identify factors associated with DBM-MDI and DBM-anemia. Methods With data from 17 national surveys spanning low- and middle-income countries (LMICs) and high-income countries from the Biomarkers Reflecting Inflammation and Nutritional Determinants of Anemia project (n = 419 to n = 9029), we tested independence of over- and undernutrition using the Rao–Scott chi-square test and examined predictors of the DBM and its components using logistic regression for each survey. Results Median DBM-MDI was 21.9% (range: 1.6%–39.2%); median DBM-anemia was 8.6% (range: 1.0%–18.6%). OWOB and micronutrient deficiencies or anemia were independent in most surveys. Where associations existed, OWOB was negatively associated with micronutrient deficiencies and anemia in LMICs. In 1 high-income country, OWOB women were more likely to experience micronutrient deficiencies and anemia. Age was consistently positively associated with OWOB and the DBM, whereas the associations with other sociodemographic characteristics varied. Higher socioeconomic status tended to be positively associated with OWOB and the DBM in LMICs, whereas in higher-income countries the association was reversed. Conclusions The independence of OWOB and micronutrient deficiencies or anemia within individuals suggests that these forms of over- and undernutrition may have unique etiologies. Decision-makers should still consider the prevalence, consequences, and etiology of the individual components of the DBM as programs move towards double-duty interventions aimed at addressing OWOB and undernutrition simultaneously.

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