The Kruskal Count

The Kruskal Count is a card trick invented by Martin D. Kruskal (who is well known for his work on solitons) which is described in Fulves and Gardner (1975) and Gardner (1978, 1988). In this card trick a magician “guesses” one card in a deck of cards which is determined by a subject using a special counting procedure that we call Kruskal's counting procedure. The magician has a strategy which with high probability will identify the correct card, explained below. Kruskal's counting procedure goes as follows. The subject shuffles a deck of cards as many times as he likes. He mentally chooses a (secret) number between one and ten. The subject turns the cards of the deck face up one at a time, slowly, and places them in a pile. As he turns up each card he decreases his secret number by one and he continues to count this way till he reaches zero. The card just turned up at the point when the count reaches zero is called the first key card and its value is called the first key number. Here the value of an Ace is one, face cards are assigned the value five, and all other cards take their numerical value. The subject now starts the count over, using the first key number to determine where to stop the count at the second key card. He continues in this fashion, obtaining successive key cards until the deck is exhausted. The last key card encountered, which we call the tapped card, is the card to be “guessed” by the magician

ANALISIS PERBANDINGAN KINERJA PORTOFOLIO SAHAM DENGAN METODE SHARPE, TREYNOR DAN JENSEN (Studi Kasus Indeks LQ 45 Di Bursa Efek Indonesia Periode 2008 – 2012)

ABSTRACT This research focuses on portfolio performance analysisof LQ 45that used method Sharpe, Treynor and Jensen. Inorder to reveal the presence or absence of differences on method of performance measurement, Nonparametric techniques is used,   Kruskal - Wallish. Results of testing with the Kruskal Wallish of the three methods showsthat χ2 = 4.231 , with a significance of 0.121 . It is proved that the probability of testing > 0.05 and χ2 count < χ2 table (5, 99). These results indicate that no significant difference between the tehcniques tes. Furthermore, according   the three tools used, Treynor’s shows the consistent result from perfomance measurement. Keywords : Sharpe Index, Treynor, and Jensen portfolio performance LQ 45

Disinfection Effect of 10% Ricinus Communis Oil on Candida Albicans Counts of Heat Polymerized Acrylic Resin : Pengaruh Desinfeksi Minyak Ricinus Communis 10% terhadap Jumlah Candida Albicans pada Resin Akrilik Polimerisasi Panas

Dentures is used to replace tooth loss. The most used denture base material is acrylic resin. The biological properties of acrylic resins give microorganisms the ability to colonize. Certain type of microorganism often found at the dentures base is Candida albicans. Denture’s disinfection is usually used to reduce Candida albicans. One of natural source that now is being widely researched is Ricinus communis oil. The purpose of this study was to analyze disinfection effect of Ricinus communis oil 10% on Candida albicans counts on heat polymerized acrylic resin. This research is an experimental laboratory study with a post-test only design. Samples was heat polymerization acrylic resin plates measuring 10 x 10 x 1 mm were made in the Department of Prosthodontic Faculty of Dentistry, Universitas Sumatera Utara with 10 plates for each for 10% Ricinus communis oil group and 0.2% chlorhexidine gluconate group (control). The Candida albicans colonies count was carried out in the Microbiology Laboratory, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara using colony counter. The data obtained was statistically count with the Kruskal-Wallis Test. The result showed the decrease in Candida albicans count with the highest value in the 10% Ricinus communis oil group is 9 x 100 CFU/ml and the highest value in the 0.2% chlorhexidine gluconate group is 0 x 100 CFU/ml. The Kruskal-Wallis test showed significant results with p value of 0.0001 (p <0.05) indicating there was a disinfection effect of 10% Ricinus communis oil and 0.2% chlorhexidine gluconate on Candida albicans count of heat polymerized acrylic resin. The study concluded that 10% Ricinus communis oil effective at decreasing Candida albicans count

Gut microbiota in HIV-pneumonia patients is related to peripheral CD4 counts, lung microbiota, and in vitro macrophage dysfunction.

Pneumonia is common and frequently fatal in HIV-infected patients, due to rampant, systemic inflammation and failure to control microbial infection. While airway microbiota composition is related to local inflammatory response, gut microbiota has been shown to correlate with the degree of peripheral immune activation (IL6 and IP10 expression) in HIV-infected patients. We thus hypothesized that both airway and gut microbiota are perturbed in HIV-infected pneumonia patients, that the gut microbiota is related to peripheral CD4+ cell counts, and that its associated products differentially program immune cell populations necessary for controlling microbial infection in CD4-high and CD4-low patients. To assess these relationships, paired bronchoalveolar lavage and stool microbiota (bacterial and fungal) from a large cohort of Ugandan, HIV-infected patients with pneumonia were examined, and in vitro tests of the effect of gut microbiome products on macrophage effector phenotypes performed. While lower airway microbiota stratified into three compositionally distinct microbiota as previously described, these were not related to peripheral CD4 cell count. In contrast, variation in gut microbiota composition significantly related to CD4 cell count, lung microbiota composition, and patient mortality. Compared with patients with high CD4+ cell counts, those with low counts possessed more compositionally similar airway and gut microbiota, evidence of microbial translocation, and their associated gut microbiome products reduced macrophage activation and IL-10 expression and increased IL-1β expression in vitro. These findings suggest that the gut microbiome is related to CD4 status and plays a key role in modulating macrophage function, critical to microbial control in HIV-infected patients with pneumonia

Relationship among research collaboration, number of documents and number of citations. A case study in Spanish computer science production in 2000-2009.

This paper analyzes the relationship among research collaboration, number of documents and number of citations of computer science research activity. It analyzes the number of documents and citations and how they vary by number of authors. They are also analyzed (according to author set cardinality) under different circumstances, that is, when documents are written in different types of collaboration, when documents are published in different document types, when documents are published in different computer science subdisciplines, and, finally, when documents are published by journals with different impact factor quartiles. To investigate the above relationships, this paper analyzes the publications listed in the Web of Science and produced by active Spanish university professors between 2000 and 2009, working in the computer science field. Analyzing all documents, we show that the highest percentage of documents are published by three authors, whereas single-authored documents account for the lowest percentage. By number of citations, there is no positive association between the author cardinality and citation impact. Statistical tests show that documents written by two authors receive more citations per document and year than documents published by more authors. In contrast, results do not show statistically significant differences between documents published by two authors and one author. The research findings suggest that international collaboration results on average in publications with higher citation rates than national and institutional collaborations. We also find differences regarding citation rates between journals and conferences, across different computer science subdisciplines and journal quartiles as expected. Finally, our impression is that the collaborative level (number of authors per document) will increase in the coming years, and documents published by three or four authors will be the trend in computer science literature

Pre-operational baseline studies of selected nearshore marine biota at the Diablo Canyon power plant site: 1979-1982

This is the final report of the California Department of Fish and Games intertidal and subtidal surveys of plants and animals in the vicinity of the Diablo Canyon Power Plant. These studies cover the period from 1979 through 1982. Our previous report (Gotshall, et al. 1984) covered the period from 1973 through 1978. The report includes abundances and statistical analyses of comparisons of abundances between years and study areas for selected intertidal and subtidal plants and animals. A total of 556 random subtidal stations, 540 intertidal stations and 67 permanent abalone transects were completed during this report period. Trends in abundances of most species observed during our 1973 through 1978 studies continued, i.e. the population of giant red sea urchins remained at a very low level, bull kelp Nereocystis leutkeana densities continued to decline in Diablo Cove and North Control. These two trends are probably due to the effects of continued sea otter foraging in the study area. Our observations of the presence or absence of fishes at subtidal 30m stations indicate a continued decline in the abundances of lingcod, Ophiodon elongatus and a decline in the abundance of blue rockfish since the 1973 through 1978 study period. A new study was begun during this study period, the use of baited stations to obtain relative abundance indices for those species of fishes attracted to the bait. Black-and-yellow rockfish were the most frequently observed fishes at Diablo Cove stations, while blue rockfish were the most frequently observed fish at North control baited stations. (Document has 393 pages