Energy Loss, Electron Screening, and the Astrophysical 3He(d,p)4He cross section

We reanalyze the low-energy 3He(d,p)4He cross section measurements of Engstler et al. using recently measured energy loss data for proton and deuteron beams in a helium gas. Although the new 3He(d,p)4He S-factors are significantly lower than those reported by Engstler et al. they clearly show the presence of electron screening effects. From the new S-factors we find an electron screening energy in agreement with the adiabatic limit.Comment: 8 Page RevTeX document, two postscript figures, now in a self-extracting uufile type archiv

Critical Review of Theoretical Models for Anomalous Effects (Cold Fusion) in Deuterated Metals

We briefly summarize the reported anomalous effects in deuterated metals at ambient temperature, commonly known as "Cold Fusion" (CF), with an emphasis on important experiments as well as the theoretical basis for the opposition to interpreting them as cold fusion. Then we critically examine more than 25 theoretical models for CF, including unusual nuclear and exotic chemical hypotheses. We conclude that they do not explain the data.Comment: 51 pages, 4 Figure

The Effect of Bound Dineutrons upon BBN

We have examined the effects of a bound dineutron, n2, upon big bang nucleosynthesis (BBN) as a function of its binding energy B_n2. We find a weakly bound dineutron has little impact but as B_n2 increases its presence begins to alter the flow of free nucleons to helium-4. Due to this disruption, and in the absence of changes to other binding energies or fundamental constants, BBN sets a reliable upper limit of B_n2 <~ 2.5 MeV in order to maintain the agreement with the observations of the primordial helium-4 mass fraction and D/H abundance

Puerto Rican Children Referred to the Catholic Charities Guidance Institute, New York City, From the Youth Board, New York City, for Placement

Background, Timeliness and Importance of the Study. Within the past ten years there has been a more pronounced interest in the Puerto Ricans and in Puerto Rico. Although the Puerto Ricans were granted American citizenship in 1917, they did not migrate in significant numbers to the United States until the 1920\u27s. They arrived in relatively large numbers at this time since they economically supplanted the European immigrants who were kept out by the new immigration laws. At least one half of them settled in New York City.It was not until 1946, however, that the peak of the Puerto Rican entry in the United States was reached. In 1946 there were more than five times as many migrants as in any year in the twenties

Military-Standard Sensor Nodes for the SmartBrick Structural Health Monitoring Platform

The SmartBrick platform is an autonomous, wireless, and robust solution for structural health monitoring of civil infrastructures. The base station is currently in its third generation and has been laboratory and field tested in the United States and Italy. The platform has been presented in our previous publications; the focus of this paper is on recent developments made with the objective of complying with military standards for hardware, software, and communication. Specifically, we discuss the design and implementation of the second generation military-standard wireless sensor node for the SmartBrick platform, to facilitate its use in military applications, where interoperability, robustness, and reliability are of paramount concern. Two major enhancements to the sensor nodes are described in this paper. The first improvement is migrating from the DSPIC30F series to the latest DSCPIC33F series of microcontrollers. The second major improvement to the sensor node is replacing the Texas Instrument CC2480 Zigbee transceiver module with the MRF24J40MA from Microchip. These improvements have resulted in significantly lower power consumption and a longer communication range. We articulate the details of hardware and software development of the sensor node that incorporates this chip. We also describe laboratory and field tests, including underwater tests, carried out for validation of reliable operation and performance of the system