Recalling the PageRank markovian approach, the idea is to find an equilibrium vector P of probabilities of a random walker being in vertex V after k steps when k → ∞. The process of finding the vector P ends when P does not change more than a given δ. So If we consider all the bow tie, we might have to wait for a bigger amount of steps to find the final P, or we can have no equilibrium point at...

Spread spectrum communications were originally developed for military purposes to capitilize on their desirable antijam (AJ) and low probability of intercept (LPI) properties. Since 1980s and early 1990s, though, application of the same in civilian communications has been worked upon. CDMA, based on spread spectrum communications technology, has been recognized as a viable alternative to FDMA a...

Plight of Commonwealth Graduates in U.K. S. C. Simmons, F.R.C.S. .................. 556 Immunization against Typhoid M. T. Ashcroft, D.M .................... 556 Involuntary Movements and the Pill E. R. Bickerstaff, F.R.C.P. ........... .......... 556 Bronchodilator Aerosols T. T. Chapman, M.D .. ....................... 557 Death from Neostigmine Treatment T. H. Christie, F.F.A. R.C.S . ..........

Abstract The article analyses the ways Ḥamīd al-Dīn Balḫī (d. 559/1164) adopted and adapted technique of earlier Arabic authors, most notably al-Ḥarīrī 516/1122), in his Persian maqāmas . It also emends traditional dating maqāma collection.

Photosystem II (PSII) is the site of action of a large number of commercial herbicides and it is the site, where photoinhibition appears when plants are exposed to high light intensities. It is known that manganese, calcium and chloride ions are essential for optimal electron flow within PSII. Recently we have found that at very low concentrations (1-1.5 Cu 2+ / reaction center) copper improves...

Because mutation is the ultimate source of genetic variation, understanding mutational patterns and mechanisms is of fundamental importance. Previous studies provided geno-mic evidence that, in the bacteria Escherichia coli and Salmonella typhimurium, yeast Saccharomyces cerevisiae, and human germ line, the mutation rate of a gene generally increases with the expression level of the gene, likel...

Ca(2+)/calmodulin-dependent protein kinase phosphatase (CaMKP/PPM1F) and its nuclear homolog CaMKP-N (PPM1E) are Ser/Thr protein phosphatases that belong to the PPM family. CaMKP-N is expressed in the brain and undergoes proteolytic processing to yield a C-terminally truncated form. The physiological significance of this processing, however, is not fully understood. Using a wheat-embryo cell-fr...

546 I. 546 II. 547 III. 548 IV. 552 V. 554 VI. 556 VII. 558 VIII. 558 IX. 559 559 References 559 SUMMARY: Mast seeding is a widespread and widely studied phenomenon. However, the physiological mechanisms that mediate masting events and link them to weather and plant resources are still debated. Here, we explore how masting is affected by plant resource budgets, fruit maturation success, and hor...

The US Centers for Disease Control and Prevention (CDC) recommend human immunodeficiency virus (HIV) screening for all persons aged 13 to 64 years who present to a health care provider. We sought to improve adherence to the CDC guidelines on the Internal Medicine Resident Hospital Service. We surveyed residents about the CDC guidelines, sent email reminders, provided education, and engaged them...