Pengembangan Bola Untuk Gerak Multilateral Siswa Sekolah Sepak Bola Di Kepanjen Malang

The aim of this Research to develop ball can use with various parts of body, utilize to develop multilateral motion of student football school in Kepanjen, Malang East Java. As for problemof this research to develop multilateral motion of student football school needed ball can use with various parts of body. Research use research and development method, with subject 40 student football school, 9 up to 12 year.. Research place in football school of Satria Muda and Pesat Kepanjen. Technique intake of data use skill test and survey use enquette, here in after data processed use Descriptive Statistical Technique. Product Research is ball can use with various parts of body, withthe following specification, a) ball materials is, colagen polypinil (PVC), bladder of butyl, carcas of natural rubber, mixture yarn of carcas of polyester, (b) making of ball, made to use machine (c) ball size measure, radian of ball 65-67cm, weight 200-220 gram, air pressure 0.35-0,40 atm, and (d) ball colour blue, white, and black to combination, logo of Ministry National Youth and Sport Republic of Indonesia, Proteam football company and Gandu Volleyball

Barn and Pole paradox: revisited

We present two different paradoxes related to the length contraction in special relativity and explain their resolution.Comment: 7 pages, 6 figures. To appear in Physics Education, IOP Scienc

Statistics of the Kolkata Paise Restaurant Problem

We study the dynamics of a few stochastic learning strategies for the 'Kolkata Paise Restaurant' problem, where N agents choose among N equally priced but differently ranked restaurants every evening such that each agent tries get to dinner in the best restaurant (each serving only one customer and the rest arriving there going without dinner that evening). We consider the learning strategies to be similar for all the agents and assume that each follow the same probabilistic or stochastic strategy dependent on the information of the past successes in the game. We show that some 'naive' strategies lead to much better utilization of the services than some relatively 'smarter' strategies. We also show that the service utilization fraction as high as 0.80 can result for a stochastic strategy, where each agent sticks to his past choice (independent of success achieved or not; with probability decreasing inversely in the past crowd size). The numerical results for utilization fraction of the services in some limiting cases are analytically examined.Comment: 10 pages, 3 figs; accepted in New J Phy

Physiology and productivity of rice crop influenced by drought stress induced at different developmental stages

Rice is sensitive to moisture stress and in view of the water scarcity in the coming years, it is imperative to evaluate the performance of rice cultivar under moisture deficit. The present study aimed to evaluate the physiological responses of two rice cultivars under drought stress induced at panicle initiation and soft dough stages. The seeds of BAS-385 and KS-282 were soaked in ABA (10-6 M) prior to sowing. Foliar application of ABA (10-6 M) was made at tillering stage, 40 days after sowing (40 DAS) in both cultivars. Drought stress was induced at panicle initiation (PI) (65 DAS) and soft dough (SD) (105 DAS) stages with re-watering at incipient wilting (12% soil moisture). Drought induced significant decrease in endogenous level of IAA, GA, sugar and protein contents in leaves at SD stage, while ABA and proline contents increased significantly as compared to control. In grains, drought induced decreases in IAA, sugar and protein content were greater at PI stage in both cultivars. Stomatal resistance was significantly increased in flag and penultimate leaves at PI stage. ABA treatments ameliorated the adverse effects of drought stress for most of the physiological parameters but were ineffective to restore the drought-induced decrease in GA content. On-rewatering, the recovery of prestressed plants was significantly enhanced under ABA seed soaking and foliar spray treatments as compared to drought alone. It is inferred that the mechanism of ABA-induced tolerance to drought stress appears to be involved in maintenance of water budget by decreasing GA, increasing stomatal resistance and by osmoregulation as observed by increase in proline accumulation, and enhanced grain filling to bring early maturity in rice over control.Key words: Drought stress, rice cultivars, panicle initiation, soft dough

Tax farming redux: experimental evidence on performance pay for tax collectors

Performance pay for tax collectors has the potential to raise revenues, but might come at a cost if it increases the bargaining power of tax collectors vis-à-vis taxpayers. We report the first large-scale field experiment on these issues, where we experimentally allocated 482 property tax units in Punjab, Pakistan, into one of three performance pay schemes or a control. After two years, incentivized units had 9.4 log points higher revenue than controls, which translates to a 46% higher growth rate. The scheme that rewarded purely on revenue did best, increasing revenue by 12.9 log points (64% higher growth rate), with little penalty for customer satisfaction and assessment accuracy compared to the two other schemes that explicitly also rewarded these dimensions. The revenue gains accrue from a small number of properties becoming taxed at their true value, which is substantially more than they had been taxed at previously. The majority of properties in incentivized areas in fact pay no more taxes, but instead report higher bribes. The results are consistent with a collusive setting in which performance pay increases collectors’ bargaining power over taxpayers, who have to either pay higher bribes to avoid being reassessed or pay substantially higher taxes if collusion breaks down

Methane Gas Hydrate Formation by Using Sodium Dodecyl Sulfate Additives

Gas Hydrates (G. Hyd) such as methane (CH4) hydrates are forming of water molecules in ice-like crystals (lattice shape) with cavities where the methane gas (gust gas) molecules are engaged in, and this process is conducted in a certain condition, mainly in low temperature and high pressure. The objective of the current work is to study the effect of Sodium Dodecyl Sulfate (SDS) additives on Methane gas hydrate performance. Two solutions were prepared. The first solution consists of distilled water (100 ml), methane gas and SDS additives (0.10 g). The second solution consists of same ingredient with seawater (100 ml) instead of distilled water. A stirred tank with 750 psi has been utilized. The highest recovery ratio was 42.15% for distilled water using SDS additives with a pressure cycle duration of 120 minutes. Significant improvement in the hydrate water recovery ratio can be obtained with distilled water and seawater by about 42 % and 15.6% respectively. Generally, SDS additives improve the recovery rate for water in the presence of methane

The Impact of Ventilation on the Development of Brain Injury in Asphyxiated Newborns Treated with Hypothermia

Birth asphyxia and the resulting neonatal encephalopathy are a significant cause of mortality and long-term morbidity in children. Hypothermia is currently the only neuroprotective treatment to have been clinically tested in large trials to prevent the development of brain injury in some term asphyxiated newborns. Most of the asphyxiated newborns treated with hypothermia are intubated at birth as per resuscitation measures and remain on mechanical ventilation during some part of the hypothermia treatment or during the whole length of the treatment. They also may present with oxygenation problems. Very often, they present with hypocapnia that can be worsened with the use of mechanical ventilation during the first days of life. When taking care of these newborns, a few important points should be remembered about the impact of asphyxia and therapeutic hypothermia on oxygenation and ventilation. In this article, we review some of the physiopathology behind neonatal encephalopathy and the implications of brain cooling from a respiratory point of view. Strategies to optimize oxygenation and ventilation for these newborns, as well as to prevent further brain injury, are also discussed based on a current literature review

Representative volume element (RVE) based crystal plasticity study of void growth on phase boundary in titanium alloys

Author is thankful to University of Aberdeen for the award of Elphinstone Scholarship which covers the tuition fee of PhD study of author.Peer reviewedPostprin