The impact of reward on employee performance: a case study of Malakand private school

Purpose: The aim of this study is to investigate how to employee performance impact on reward in private school. The study also aims to show how to employee improve the performance has in reward system.Design/methodology/approach: Questionnaire is used as instrument and 100 questionnaires were used to check the respondent's opinion Findings: descriptive analysis, correlation and multiple regression tests were applied for data analysis.Conclution: study concludes that there is positive relationship between rewards (extrinsic and intrinsic) and employee's job performance. Most of the organizations implement rewards system to increase the job performance and job satisfaction. Originality/value: By reviewing the different finding that the reward and employee performance. the contribution of this paper is to look at how to finding the effective solution of employee performance will be in reward system inter-organisational and school.Study of paper: The study of this paper is exploratry is qualitative study of research

Improving the performance and efficiency of wireless networks using rate adaptation

Recent years have seen a staggering increase in the deployment and utilization of wireless networks. More and more devices are being equipped with Wireless LAN (WLAN) cards to take advantage of the omnipresence of WLAN networks. Therefore, it has become necessary that the protocols used by WLANs are efficient and provide good performance. Rate Adaptation protocols are an important mechanism employed by WLANs to improve network performance. This dissertation develops three complementary techniques, which use rate adaptation to optimize and improve performance by i) performing rate adaptation to optimize energy consumption, ii) developing a more accurate technique to predict the frame delivery ratio that is used by rate adaptation protocols, and iii) jointly optimizing rate adaptation with data retransmission to maximize throughput. More specifically, in i), we use extensive measurements to develop a simple yet accurate energy consumption model for 802.11n wireless cards. We use the model to drive the design of an energy aware rate adaptation scheme. A major benefit of a model-based rate adaptation is that applying a model allows us to eliminate frequent probes required in many existing rate adaptation schemes. In ii), we find that the accuracy of existing delivery ratio calculation techniques is still limited due to bursty errors inherent to the wireless channel. We develop a new method for computing packet delivery rate that captures the burstiness of errors. Furthermore, we propose a new data interleaving technique, which leverages our framework to reduce the burstiness of errors, thereby improving frame delivery ratio. Finally, in iii), we address the susceptibility of wireless networks to transmission failures due to dynamic channel conditions and unpredictable interference. To efficiently recover from failures, we propose a retransmission scheme where the receiver combines information received from multiple failed transmissions associated with the same frame. The protocol has two distinguishing features. First, it simultaneously supports partial retransmission and combines bits with low confidence. Second, it jointly optimizes the data rate of the retransmission and the information to be retransmitted to maximize throughput.Electrical and Computer Engineerin

Analysis of microstructure and mechanical properties of bismuth-doped SAC305 lead-free solder alloy at high temperature

SAC305 lead-free solder alloy is widely used in the electronic industry. However, the problems associated with the growth formation of intermetallic compounds need further research, especially at high temperatures. This study investigates the doping of Bismuth into SAC305 in the various compositions of 1, 2, and 3 wt.%. The microstructure in terms of intermetallic compound particles and mechanical properties was examined after thermal aging at temperatures of 100 °C and 200 °C for 60 h. The microstructure examination was observed using scanning electron microscopy, and the chemical composition of each alloy was confirmed with an energy dispersive X-ray. Tensile tests were performed to find the mechanical properties such as yield strength and ultimate tensile strength. The intermetallic compound’s phase analysis was identified using X-ray diffraction, and differential scanning calorimetry was done to study the temperature curves for melting points. Results showed that the addition of Bismuth refined the microstructure by suppressing the growth of intermetallic compounds, which subsequently improved the mechanical properties. The thermal aging made the microstructure coarsen and degraded the mechanical properties. However, the most improved performance was observed with a Bismuth addition of 3 wt.% into SAC305. Furthermore, a decrease in the melting temperature was observed, especially at Bismuth compositions of 3 wt.%

Treatment Outcome of Multi-Drug Resistant Tuberculosis Treated As Outpatient in a Tertiary Care Center

INTRODUCTION: Community-based out-patient treatment for multidrug-resistant tuberculosis (MDR TB) is relatively new concept with reported successful outcomes. OBJECTIVE: To assess the treatment outcomes of HIV negative multidrug-resistant tuberculosis (MDR TB) patients treated as outpatient at a tertiary care center in Karachi, Pakistan. METHODS: A retrospective observational study of 53 consecutive, culture proven HIV negative MDR TB patients (resistant at least to both Isoniazid (H) and Rifampin(R) treated at Aga Khan University Hospital, Karachi between August 1999 and March 2007. Data were collected on predesigned performa regarding patient’s demography, clinical features, radiological findings, drug sensitivity, treatment and outcome. RESULTS: A total of 53 HIV negative patients (27 males), with mean age of 37±15 years (range 15-76 years), received treatment as outpatient for culture proven MDR TB. 51 patients (96.2%) had pulmonary while 3 patients (5.6%) had extra-pulmonary TB. History of exposure to tuberculosis patients was found in 36 (67.9%) patients. Treatment regimen with 2nd line drugs was decided on individual basis according to DST on sputum culture results. The mean duration of treatment was 18 months. Successful outcome was seen in 25 patients (47.2%), 25 patients (47.2%) were loss to follow up and defaulted while 3 (5.6%) patients remain smear positive at the end of treatment. Success rate was 89 .2% in those who completed the treatment. CONCLUSION: Community-based out-patient treatment strategy is both feasible and safe for the treatment of MDR-TB patients in resource limited country like Pakistan and this strategy should be integrated into the routine approach to treatment of MDR-TB patients in the country where the expertise are available. High default rate is this strategy is the main challenge which should be addressed

Evaluation of Antibiotics Pattern of Extended Spectrum Beta-Lactamase Producing Multi-Drug Resistant Pseudomonas aeruginosa

Background: Pseudomonas aeruginosa (Ps. aeruginosa) is considered as an opportunistic pathogen and the leading cause of morbidity and mortality in immunocompromised individuals. Globally, approximately 10-15% of the nosocomial infections are caused by Ps. aeruginosa. The Ps. aeruginosa can acquire resistance against broad-spectrum antibiotics. According to recent studies increased mortality has been observed due to infection with extended-spectrum-beta-lactamase (ESBL) producing Ps. aeruginosa strains. This study was designed to determined antibiogram of ESBL producing multi-drug resistant Ps. aeruginosa in Khyber Pakhtunkhwa.Methods: The clinical confirmed Ps. aeruginosa samples were collected according to the standard protocol, at Khyber Teaching Hospital (KTH), Peshawar. All collected samples were sub- cultured on appropriate culture media. After isolation and identification, the antibiotics susceptibility testing was performed. The detection of ESBL was carried out by the double-disc diffusion method. Carbapenemase-producing bacteria was confirmed by the modified Hodge test. Descriptive analysis was performed for statistical analysis of collected data.Results: A total of one hundred and sixty-two (n=162) Ps. aeruginosa confirmed isolates were collected, in which 59.3% were male and 40.7% were from female patients. The percentages of ESBL and carbapenemase producing Ps. aeruginosa isolates were 5.5% and 23.5%, respectively. The multidrug resistance was observed against 27.2% isolates. Among tested antibiotics highest percentages of resistance was observed against ciprofloxacin (43%) and ceftazidime (39.5%). Conclusion: We observed highest level of drug resistance in Ps. aeruginosa clinical isolates against tested antibiotics and majority of the isolates were Multi-drug resistant (MDR).Keywords: Pseudomonas; Multi-Drug Resistant; Extended Spectrum Beta Lactamases; Antibiotics Susceptibilit

Analysis and Design of Secure Sampled-Data Control Subject to Denial-of-Service Attacks

This study addresses the issue of secure control design for cyber-physical systems (CPS) against denial of service (DoS) attacks. We take into account a continuous-time linear system with a convex quadratic performance measure and a sampled linear state feedback control. DoS attacks impose constraints on the CPS, where packets may be jammed between the sensor and controller by a malicious entity, potentially resulting in system instability and performance degradation. We assume that the attacker can perform DoS attacks with a limited time and frequency due to energy restrictions. We devise an efficient procedure using the linear matrix inequality approach to compute an upper bound on the performance degradation brought on by the DoS attack. We also propose a redesign of the controller to minimize this performance degradation. Finally, a simulation example illustrates the computation of the performance degradation under a bounded DoS attack and the design of a secure controller. Simulation results show that the designed controller effectively keeps the feedback loop’s performance and stability under attack

Anthesis and Booting: Two Critical Stages Vulnerable to Water Stress in Wheat (Triticum aestivum L.) With Respect to Yield Production

Six spring bread wheat varieties (AAS-11, BARS-09, Dharabi-11, Faisalabad-08, Chakwal-50 and Fatehjang-2016) and 4 elite lines of wheat (10FJ01, 12FJ26, 12FJ01 and 11FJS309) were analyzed with respect to water stress by providing them two types of treatments i.e., control (no stress) and strained treatment (20 days of stoppage of irrigation at booting and further 20 days of drought after anthesis) at Barani Agricultural Research Station, Fatehjang during 2017-18. Results of this study exhibited highly significant variations prevailed in all the wheat genotypes by viewing their mean performance with respect of all physiological and yield traits. AAS-11, Fatehjang-2016 and Dharabi-11 exhibited their best performance and pointed out elevated mean productivity (MP), stress tolerance index (STI), relative water content (RWC) and geometric mean productivity (GMP). Moreover, stress susceptibility index (SSI) and tolerance (TOL) was anticipated at lowest among the above-mentioned wheat varieties and lines. Based multivariate analysis (biplot) and dendrogram studies; AAS-11, Fatehjang-2016 and Dharabi-11 are most suitable wheat cultivars for drought tolerance at booting and anthesis stage. MP, STI, RWC, GMP, SSI and TOL are renowned to be favourable gauges for identification of drought tolerance wheat ideotype. Likewise, same wheat varieties also exhibited higher grain yield per plant that put them in higher ranked genotypes for making selections and recombination while improving wheat through breeding for drought resistant