Performance and Correlation

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Impact of antenna correlation on the performance of partial relay selection

Impact of antenna correlation on the performance of partial relay selection

Figure 1 shows the outage probability variation with the average SNR of the first hop. Curves are plotted for differ- ent antenna configurations and correlation parameters. It is observed from the figure that the increase of the num- ber of antennas, improves the outage probability. High SNR curves are also plotted where we can clearly see how diversity gain is varying. One can notice that the left three curves have a diversity gain of four and the two right most curves have a diversity gain of two. It is noticed that the increase of correlation decreases the performance. The outage probability variation for fixed gain relay is depicted in Figure 2. Here we see an improvement in the per- formance when the number of antennas and number of relays increase. However, as in the csi-assisted case we can observe that this improvement depends on the diversity gain. It is further observed that the increase of correla- tion decreases the performance. Moreover, one can notice that the csi-assisted relay outperforms the fixed gain one by approximately 3 dB. Moreover Monte Carlo simulation results exactly match with the analytical ones.
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The Correlation between Lecturer’s Performance and the Motivation of Students in Learning English Subject

The Correlation between Lecturer’s Performance and the Motivation of Students in Learning English Subject

Abstract:- The objective of this research was to identify the correlation between lecturer’s performance and students’ motivation in learning English subject. Performance can be defines as an one’s ability to applicate his or her competence in form of real action. In this context, the real performance due to English teaching learning process in the classroom. The researcher used classroom observation and questionnaire for data collection. The data to be observed were students’ attention toward their assignment, come or attend on time and response the material presented by the lecturer in the classroom, the ways of presenting paper or discussion, body language and use of voice. In linguistics study, performance and competence are different, competence is study about language rules in the abstract form or one’s capacity to use a language, while performance is the application of one’s ability in the concrete form, or the actual application of this competence in speaking or listening. Performance is the effect or the application of competence. Further he said that clearly, the actual data of linguistic performance will provide much evidence for determining the correctness of hypotheses about underlining linguistic structure.
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Determine the effect of conduct disorder on students’ academic performance and their correlation: case study of kamukunji and olympic secondary schools, Nairobi, Kenya

Determine the effect of conduct disorder on students’ academic performance and their correlation: case study of kamukunji and olympic secondary schools, Nairobi, Kenya

deaths and culminated to academic underachievement (Nyakundi, 2014). Some of the observed and reported disruptive behaviors among secondary schools in Kenya include the St. Kizito incident where female students were raped by male students and 19 girls died (Simatwa, 2007), Hawinga School girls gang-raped in 1993 (Oriang, 2001) and Bombululu High School fire tragedy in 1998 that claimed 25 lives (Ndetei et al., 2004). Four school prefects in Nyeri high school burnt to death by fellow students (Mwaniki, 1999). Kyanguli High School fire of 2001, 67 students died (Odalo, 2001). In 2008 a student at Upper Hill School was burnt to death (Ombati, 2008). Reported also were numerous school strikes, poor academic performance and misconduct among the students. A study conducted among secondary school students in Kisumu on assessment of students’ attitudes towards peer counselors in student discipline in secondary schools, Kute found that absenteeism and truancy accounted for 20% of cases of indiscipline in the schools under study leading to poor academic results (Kute, 2011). On the other hand, Mutsoga (2003) itemized the most common forms of problem behaviors in Kenya secondary schools as bullying, vandalism, alcohol and substance abuse, truancy, inability or unwillingness to do assigned class work or homework leading to academic under achievement. The above studies, observations and reports indicate that CD as a problem among secondary school students and its consequence on academic underachievement cannot be overemphasized given the global, regional and the local prevalence and its negative academic outcomes. This study aims to scientifically determine the effect of conduct disorder on students’ academic performance and their correlation.
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Correlation properties and multiple access performance of 
		Gold codes

Correlation properties and multiple access performance of Gold codes

Significance of properties of spreading codes in the performance of CDMA-based systems cannot be overemphasized. This paper investigates correlation properties and multiple-access performance of some m-sequences and Gold codes. The Gold codes were generated from appropriate combinations of preferred pairs of m-sequences, obtained from software implementation of linear feedback shift registers. The correlation properties of the codes were tested prior to their deployment in a multi-user spread-spectrum communication system. Software simulations were carried out on the system bit-error-rate performance for transmission of random QPSK symbols through the channel. Transmitted data were encoded using 31, 127, 511 and 2048-chip Gold codes. The system bit-error-rate was computed and analysed for increasing number of interfering users. Results show that under increasing load, bit-error-rateof the Gold codes exhibited no error floor or significant system saturation. The results show that certain Gold codes have better properties that make them excellent for multiple access applications.
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Correlation between roundhouse kick and countermovement jump performance

Correlation between roundhouse kick and countermovement jump performance

The countermovement jump (CMJ) is a  test widely used by sports scientists and coaches to evaluate the strength and power of lower limbs muscles in athletes from different sports [8], including TKD [5]. Studies verified the corre- lation between the CMJ and a specific capac- ity of different modalities. Kale et al. [9] found a significant and negative correlation between the CMJ and 100 m performance of sprinters (r =  0.46). Wisloff et al. [10] also found signifi- cant correlation between the CMJ height with the 10 m sprint time (r = 0.72), the 30 m sprint time (r=0.60) and the level of 1RM half squat (r = 0.78) in soccer players. Concerning the cru- cial importance of have volleyball-specific test- ing procedure, Sattler et al. [11] compared two volleyball-specific jumping tests, the block jump
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Correlation of Automobile Bumper Performance with Geometry of the Automobile

Correlation of Automobile Bumper Performance with Geometry of the Automobile

Abstract – This paper presents a correlation of Automobile bumper performance with geometry of the Automobile. The study focuses on finding out if there is any existing relationship between the two variables mentioned and to determine the strength of that relationship if there is any. An approach which allows for this- Pearson’s Correlation process- developed by Karl Pearson is applied. Varying automobile bumpers resulting from different automobile geometry models were simulated using Solid Work Software. The Correlation analysis carried out with the simulation data, produced Correlation coefficients of 0.990534919 & 0.990658205; showing a very strong positive correlation between the variables. Since the Correlation coefficient obtained is greater than the corresponding critical value of Correlation coefficient, 0.917, (under 0.1 tailed test of type1 error) for the correlation degree of freedom of 4, it follows that this research runs only 1% chance of being wrong in the relationship so determined. Hence, it will be useful in automobile design in general.
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Micronutrients And Its Correlation with Mental Performance Among School children In Bario, Sarawak: A Preliminary Study

Micronutrients And Its Correlation with Mental Performance Among School children In Bario, Sarawak: A Preliminary Study

Micronutrients And Its Correlation with Mental Performance Among School children In Bario, Sarawak A Preliminary Study ORIGINAL ARTICLE Micronutrients and its Correlation With Mental Performance Among[.]

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A study on correlation between screen time duration and school performance among primary school children at Tamil Nadu, India

A study on correlation between screen time duration and school performance among primary school children at Tamil Nadu, India

We found no statistically significant correlation between screen time duration and composite academic performance as well as academic performance in mathematics, science and language among primary school children in this study. This is similar to the study by Regondola EN and Barbado LN, among elementary pupils of the Camarines Norte State College Laboratory School in which the media habits of the respondents did

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A New Approach to Measuring the Correlation of Organizational Alignment and Performance

A New Approach to Measuring the Correlation of Organizational Alignment and Performance

Abstract: Research Questions: This paper focuses on measuring the alignment of organizational elements. Motivation: Although several authors have analyzed this topic, there are few papers in which a concept for measuring the alignment of key elements of the organization is proposed (Simons, 2005; Sadeghi, 2011; Trevor & Varcoe, 2017). In previous research, the concept of alignment is usually defined through categorical variables and different organizational configurations are suggested (Mintzberg, 1980). Thus, this paper aims to propose a new approach to measuring organizational elements and their alignment. Idea: Based on the literature review we determined the organizational model for conducting the research in companies listed on the top 300 companies in Serbia. Data: On the sample of 57 respondents the results confirmed the defined hypothesis by which the alignment of the organizational elements has a positive correlation with the organizational performance. Tools: In order to measure the organizational elements we defined the 7-level scale which enables measuring the alignment of organizational elements. Findings: The research results confirm that it is necessary to look at the solutions based on some organizational elements simultaneously. However, in order to confirm the validity and reliability of the results, it is necessary to conduct a research on a larger sampling frame, since the sample from this research is relatively small in comparison to the total population. Contribution: The defined scale can be used as a control tool for checking the proposed organizational design solutions in practice. Also, the rules of alignment of organizational elements can be applied at different hierarchical levels in the organization, which will be the subject of future research of the authors.
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Correlation of leadership and care coordinator performance among primary care physicians

Correlation of leadership and care coordinator performance among primary care physicians

Results: Respondents were mainly female (94%) with an average age of 36 years and were mostly medical doctors without any additional postgraduate degrees (95.2%). There was no correlation between care coordinator scores and organizational culture or commitment. There were positive and significant correlations between care coordinator scores and clinical leadership score (r=0.66; P<0.001), transformational leadership score (r=0.54; P<0.001), job satisfaction score (r=0.31; P=0.004), physician’s age (r=0.34; P=0.002), length of time since graduation (r=0.30; P=0.005), duration of employment at their health center (r=0.33; P=0.003), training in family medicine (P=0.04), and employment status (P=0.005). The most important factors in care coordinator performance were clinical leadership (r=0.53; P<0.001) and transformational leadership (r=0.23; P=0.03), with the total R 2 being 0.47.
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The Impact of Job Dissatisfaction on Extrinsic Factors and Employee Performance in Textile Industries

The Impact of Job Dissatisfaction on Extrinsic Factors and Employee Performance in Textile Industries

In current thesis, research methodology is very important portion for analysis of data. The data was gathered through questionnaires. For this purpose, 325 copies of questionnaire were collected from textile industry. Reliability test was conducted through SPSS version 20.0. Pearson correlation, t test, ANOVA and multiple regressions techniques were used for analysis of data. In this regard, Jarque Bera test employed. On basis of Jarque Bera, all variables used in multiple regression were normally distributed. Convienence non probability technique and random sampling techniques were used in present study. The selected area is Hyderabad, Sindh.
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An Analysis of the External and Internal Factors Affecting Subaru Corporation’s Performance

An Analysis of the External and Internal Factors Affecting Subaru Corporation’s Performance

Pearson correlation measures the relationship between the performance which is return on asset (ROA) and the internal and external factors such as current ratio, quick ratio, average -collection period, debt to income, operational ratio, operating margin, index, gross domestic product (GDP), inflation and exchange rate. The positive value of the result will representative the positive relationship and reversely.

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Low Temperature Performance Prediction Model of Cold Filled SMA 13 Asphalt Mixture

Low Temperature Performance Prediction Model of Cold Filled SMA 13 Asphalt Mixture

The correlation model recommended between the fractal dimension and the evaluation index of low temperature performance can be used to predict the low temperature performance of cold-filled SMA-13 asphalt mixture according to the design gradation, which can reduce the test workload and improve the working efficiency.

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Genetic correlation and genome-wide association study (GWAS) of the length of productive life, days open, and 305-days milk yield in crossbred Holstein dairy cattle.

Genetic correlation and genome-wide association study (GWAS) of the length of productive life, days open, and 305-days milk yield in crossbred Holstein dairy cattle.

GWAS showed that the DGAT1 gene on bovine chromosome BTA14 was associated with milk production and the FAM1818 gene on BTA21 was associated with days open (Minozzi et al., 2013; Nayeri et al., 2016). Moreover, Kühn et al. (2003) reported the effect of QTL region on the length of productive life and the effect of the SIGLEC12 gene on BTA18 on the longevity of the German Holstein population. However, many studies focused on the milk production and fertility trait and only a few have examined longevity or the length of productive life. In addition, those results are studied in purebred dairy cattle, which might not be applicable to crossbred Holstein cattle. Therefore, the aims of this study were to: 1) estimate the genetic parameters of the LPL, DO, and FM305 in crossbred dairy cattle for their selection in terms of genetic performance, and 2) investigate the putative QTL associated to LPL, DO, and FM305 using GWAS.
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Age-related changes in the joint position sense of the human hand

Age-related changes in the joint position sense of the human hand

in proprioceptive hand function because the differences are highly variable among subjects. Nevertheless, the absolute values of DE increase with age. This parameter might be used for monitoring individual treatment-induced alterations in patients, as it is very reliable in healthy subjects (Figure 5). The fact that there were no significant correlations between individual joint position sense performance and tactile acuity or dexterity provides evidence that the test specifically measures joint position sense performance that is not assessed with sensory or motor tasks. On the other hand, more experiments are necessary to investigate the possible correlation between individual performance in the presented joint position test and performance in tests of haptic object exploration, which also rely on joint position sense to some extent. In this context, it would be of special interest to further reveal underlying age-related changes that account for declining haptic performance in later life. 35
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Knowledge management as a performance enhancing tool in construction project management in South Africa

Knowledge management as a performance enhancing tool in construction project management in South Africa

possible correlation between ‘high’ levels of knowledge management use and ‘high’ levels of construction project management performance. This approach therefore necessarily cuts across various organisations/respondents. An alternative framework is via detailed case studies of selected organisations, in order to establish ‘before’ and ‘after’ performance levels of individual organisations involved in construction project management, with respect to the adoption/implementation of knowledge management systems and processes. This approach has been suggested by other authors, and has seen some degree of success in its use (Sheehan et al., 2005: 50-64; Zou et al., 2003: 233-250). Such a framework would be able to accommodate, to an extent, the various scope-change and delay factors inherent in the industry, provided that the impact of such factors does not vary excessively with time, or such variations average out. However, such a framework requires a high degree of familiarity with the subject organisation’s processes, in terms of both ‘before’ and ‘after’ the knowledge management system’s implementation. It also requires luck to find such an organisation that is about to embark on a knowledge management implementation process. In addition, patience is needed in order to realise performance- enhancing benefits. As one can readily imagine, this option of research methodology could not be explored within the context of the study, due to considerations mentioned in section 3.3.
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Genetic relationship between purebred and crossbred sow longevity

Genetic relationship between purebred and crossbred sow longevity

The overall breeding objective for a swine nucleus se- lection program is to improve crossbred commercial performance. Most genetic improvement programs are based on an assumed high degree of positive relationship between purebred performance in a nucleus herd and their relatives’ crossbred performance in a commercial herd. In addition to the sows’ genetic makeup differences (i.e. purebred versus crossbred) in nucleus and commer- cial herds, there are differences in management practices between the two types of herds. Sow longevity is an eco- nomically important trait at the commercial level; how- ever, nucleus sows typically produce fewer parities due to the desire to shorten the generation interval in order to increase the rate of genetic improvement. Removing sows at the nucleus level before they have fully expressed their lifetime potential does not allow for direct selection on longevity in the nucleus herd. Since nucleus animals do not have phenotypic records for lifetime measurements, an indicator trait expressed at an earlier parity would be necessary to select for longevity. Few sows remain in a nu- cleus herd after the 2nd parity due to culling for genetic potential. If 2nd parity reproductive performance is indi- cative of lifetime performance in commercial animals and if a genetic correlation exists between purebred and cross- bred performance, selection on nucleus animals after only 2 parities could have a positive impact on improving sow longevity and lifetime production in commercial herds.
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Factors Affecting Performance of Adults in Adult and Continuing Education in Nkulumane-Emganwini Area

Factors Affecting Performance of Adults in Adult and Continuing Education in Nkulumane-Emganwini Area

The purpose of this study was to determine the correlation of the factors affecting academic performance with the performance levels of adults in adult and continuing education in Nkulumane-Emganwini area. These factors were arbitrarily selected from the literature review. The research design selected was the empirical approach .A sample of 40 students was randomly selected from a population of 420 in Nkulumane –Emganwini in the four schools Questionnaires were used as the research instrument. Other instruments used were adult learning style inventory, attendance registers and mid-year mark sheet record. The research findings indicate that attendance and academic self-concept have a strong positive correlation with performance. Learning styles and Age were also found to affect performance while marital status and income did not significantly affect performance. It is recommended that school administrators should adequately monitor lesson attendance. The Ministry of Education Sport and Culture should carry out refresher courses in teaching styles as part of the continuing professional development teachers.
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Sievenpiper HIS and its influence on antenna correlation

Sievenpiper HIS and its influence on antenna correlation

The intention of applying Diversity with multiple receive and/or transmit antennas in wireless communication systems is to overcome the drawbacks like fading and depolarisation comprising the signal transmitted over the wireless channel (see Jakes, 1974). Therefore different Diversity techniques like spatial-, pattern- or polarization-Diversity can be imple- mented in a transceiver to reduce these signal impairments with the benefit of either increasing the transmission link re- liability or the effective data rate both by increasing the avail- able SNR at the receiver. An important characteristic influ- encing the Diversity performance is the complex correlation coefficient of incoming signals resulting from signal correla- tion within the channel and the antenna correlation between each element of a MEA system. The correlation influences the achievable Diversity gain, which is a measure for the re- duction of the channel imposed data link impairments. The complex correlation coefficient between antenna element i and j of a receiver is given in Eq. (2). Here R and σ represent the covariance term and the standard deviation, respectively. ρ i,j =
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The Effect of Ownership Structure on the Financial Performance of Firms Listed at the Nairobi Securities Exchange

The Effect of Ownership Structure on the Financial Performance of Firms Listed at the Nairobi Securities Exchange

In Kenya, a number of problems relating to the way companies are controlled and directed have been identified. These problems range from errors, mistakes to outright fraud. The origins of these problems range from concentrated ownership, weak incentives, and poor protection of minority shareholders to weak information standards. Despite impressive performance at the Nairobi Securities Exchange, firm’s at the Nairobi Securities Exchange are still characterized by higher ownership concentration providing the controlling shareholders with the opportunity to use their power to undertake activities intended to obtain personal gains to the detriment of minority shareholders and other stakeholders while adversely affecting the firms’ performance. The study aimed at establishing the effect of ownership structure on the financial performance of firms listed at Nairobi securities exchange. The study was based on transaction cost theory, agency theory and the stewardship theory. The research design that was used in this study is both cross sectional and descriptive survey method. The target population consists of all the stocks listed at NSE as at 31st December 2014. Currently there are 63 firms who are members of the Nairobi Securities Exchange. Secondary data was used in this study. Specifically the study used financial statements. All the data was collected by review of documents, annual reports of the companies, the Nairobi Securities Exchange Handbooks and published books of accounts. Content analysis was used to determine the score for ownership structure. Regression analysis was used to test the relationship between ownership structure and financial performance of firms listed in the NSE. The study found that a strong positive correlation coefficient between financial performances of companies listed in NSE
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