The Legion system defines a software architecture designed to support metacomputing, the use of large collections of heterogeneous computing resources distributed across localand wide-area networks as a single, seamless virtual machine. Metasystems software must be extensible because no single system can meet all of the diverse, often conflicting, requirements of the entire present and future u...

Polycytidylic acid is known to form a double-stranded helical structure that is different from either the A or the B form of DNA. X-ray diffraction studies' indicate the structure to be that of a helix similar to that of poly A,2 with the difference being that only one shared proton is bound between the two cytosine residues, this proton forming a third hydrogen bond (Fig. 1). The two protons i...

One in 12 of the children born in 2001 have died or will die before their fifth birthday. This represents an annual total of 10.8 million childhood deaths, about 70% of which occur in infancy. Child mortality has declined from an estimated 15 million deaths in 1980, but eminently preventable and treatable conditions, such as pneumonia, diarrhoea, malaria, measles, and malnutrition, are still le...

Commissioning at the SCRF accelerator at the Fermilab Accelerator Science and Technology (FAST) Facility has included the implementation of a versatile bunch-length monitor located after the 4-dipole chicane bunch compressor for electron beam energies of 20-50 MeV and integrated charges in excess of 10 nC. The team has initially used a Hamamatsu C5680 synchroscan streak camera to assess the eff...

The resistance standard described by James L. Thomas [1] was the result of his extensive effort to develop a new standard by systematically investigating every factor affecting the stability of resistance— time, surface effects, temperature, power, pressure— detectable at the time. The result was a unique standard which was used as part of the National Reference Group of resistors beginning in ...

Condition satisfaction in planning has received a great deal of experimental and formal atten tion A Truth Criterion lies at the heart of many planners and is critical to their capabilities and performance However there has been lit tle study of ways in which the search space of a planner incorporating such a Truth Criterion can be guided The aim of this document is to give a descrip tion of th...

Autism spectrum disorder (ASD) is associated with difficulty in processing speech in a noisy background, but the neural mechanisms that underlie this deficit have not been mapped. To address this question, we used magnetoencephalography to compare the cortical responses between ASD and typically developing (TD) individuals to a passive mismatch paradigm. We repeated the paradigm twice, once in ...

MATERIALS AND METHODS Inoculation with Rhizobium japonicum or R. meliloti reduced the electrical transmembrane potential (Em) of soybean (Glycine max [L.] Merr.) root cells within I day. The response could be attributed to altered diffusion potential (ED). Em values return to control levels by the second day after inoculation, but again were reduced in R. meliloti-inoculated tissue on the seven...

Food security is one of the major challenges modern society (Prosekov & Ivanova, 2018). Globally food production needs to be increased by 70% in order meet demand a growing population reaching 9.7 billion 2050 (Cole et al., It was estimated that approximately 768 million people were hunger as 2021 (FAO, 2022b). The situation exacerbated ongoing coronavirus pandemic, regional conflicts and globa...

This study compared the effects of system-initiated (low-level) facilitation with that of facilitator-initiated plus system-initiated (high-level) facilitation on cognitive restructuring and learning achievement. Graduate students participated in facilitated online discussion within a web course for one semester. This study found no significant effects by employing an online facilitator to prov...