Remote sensing of chlorophyll concentration: State-of-the-art, 1975

Remote measurement of chlorophyll concentration of the world's oceans from satellite observations could potentially be extremely useful for assessments of productivity in large areas for which measurements by other means would be impractical. The basis of these measurements rests with the physics of the interaction of light with material dissolved and suspended in the water. It is theoretically possible to predict the nature of light upwelled from the ocean surface from a solution to the radiative transfer equation. Practically, however, this is difficult. Monte-Carlo methods presently are thought to be the most viable method to treat the general theoretical problem. With restrictive assumptions of the nature of scattering, it is possible to construct simpler models. Algorithms developed to relate chlorophyll concentration (or some other parameter, i.e., seechi depth) to the upwelled light spectrum are discussed

National Youth Service: The Proposed Legislation

I\u27m very happy to be back in sunny Arizona. I was here just a few weeks ago for another meeting, but this week I\u27m especially glad to be out of Washington, where the weather has been dreary and some of the political debate even drearier. Because I work in Washington, everybody always wants to know what\u27s really going on in the nation\u27s capital, and why the government can\u27t seem to get anything right. So I thought I\u27d begin by telling you about something you didn\u27t read in the newspapers, and that\u27s a meeting that took place the other day at the White House, between President Bush, Alan Greenspan, the chairman of the Federal Reserve, Dick Darman, the head of the Office of Management and Budget, and God

National Youth Service: The Proposed Legislation

I\u27m very happy to be back in sunny Arizona. I was here just a few weeks ago for another meeting, but this week I\u27m especially glad to be out of Washington, where the weather has been dreary and some of the political debate even drearier. Because I work in Washington, everybody always wants to know what\u27s really going on in the nation\u27s capital, and why the government can\u27t seem to get anything right. So I thought I\u27d begin by telling you about something you didn\u27t read in the newspapers, and that\u27s a meeting that took place the other day at the White House, between President Bush, Alan Greenspan, the chairman of the Federal Reserve, Dick Darman, the head of the Office of Management and Budget, and God

Mississippi Sound Remote Sensing Study

The Mississippi Sound Remote Sensing Study was initiated as part of the research program of the NASA Earth Resources Laboratory. The objective of this study is development of remote sensing techniques to study near-shore marine waters. Included within this general objective are the following: (1) evaluate existing techniques and instruments used for remote measurement of parameters of interest within these waters; (2) develop methods for interpretation of state-of-the-art remote sensing data which are most meaningful to an understanding of processes taking place within near-shore waters; (3) define hardware development requirements and/or system specifications; (4) develop a system combining data from remote and surface measurements which will most efficiently assess conditions in near-shore waters; (5) conduct projects in coordination with appropriate operating agencies to demonstrate applicability of this research to environmental and economic problems

Behavioral Control of Seizures in Squirrel Monkeys (Saimiri sciureus)

71 leaves. Advisor: Kenneth E. LloydProblem: to ascertain whether epileptic seizures develop as a result of a laboratory produced lesion of the nodosa ganglia of the vagus nerve, to condition the inhibition of seizures, and to theorize on sudden death. Procedures: eleven Squirrel monkeys were surgically implanted with depth electrodes. Electroencephalographic recordings were made and 38 days later lesions of the nodosa ganglia were created. Seizures were punished with electro stimulation and desirable behavior was positively reinforced. Findings: the lesion of the nodosa ganglia of the vagus nerve created seizures which were suppressed with punishment-differential reinforcement of desirable behavior. Conclusions: it is possible that a vagal lesion is the explanation of the sudden death of persons diagnosed as epileptic, of persons who are not diagnosed as epileptic but who have disruptions of cardiac or respiratory functions, and of young babies, classified as crib deaths, who have the same cardiac and respiratory failure. Recommendations: further research is needed

Serpin genes AtSRP2 and AtSRP3 are required for normal growth sensitivity to a DNA alkylating agent in Arabidopsis

<p>Abstract</p> <p>Background</p> <p>The complex responses of plants to DNA damage are incompletely understood and the role of members of the serpin protein family has not been investigated. Serpins are functionally diverse but structurally conserved proteins found in all three domains of life. In animals, most serpins have regulatory functions through potent, irreversible inhibition of specific serine or cysteine proteinases via a unique suicide-substrate mechanism. Plant serpins are also potent proteinase inhibitors, but their physiological roles are largely unknown.</p> <p>Results</p> <p>Six <it>Arabidopsis </it>genes encoding full-length serpins were differentially expressed in developing seedlings and mature tissues. Basal levels of <it>AtSRP2 </it>(At2g14540) and <it>AtSRP3 </it>(At1g64030) transcripts were highest in reproductive tissues. <it>AtSRP2 </it>was induced 5-fold and <it>AtSRP3 </it>100-fold after exposure of seedlings to low concentrations of methyl methanesulfonate (MMS), a model alkylating reagent that causes DNA damage. Homozygous T-DNA insertion mutants <it>atsrp2 </it>and <it>atsrp3 </it>exhibited no differential growth when mutant and wild-type plants were left untreated or exposed to γ-radiation or ultraviolet light. In contrast, <it>atsrp2 </it>and <it>atsrp3 </it>plants exhibited greater root length, leaf number and overall size than wild-type plants when exposed to MMS. Neither of the two serpins was required for meiosis. GFP-AtSRP2 was localized to the nucleus, whereas GFP-AtSRP3 was cytosolic, suggesting that they target different proteinases. Induction of cell cycle- and DNA damage-related genes <it>AtBRCA1</it>, <it>AtBARD1</it>, <it>AtRAD51</it>, <it>AtCYCB1;1 </it>and <it>AtCYCD1;1</it>, but not <it>AtATM</it>, was reduced relative to wild-type in <it>atsrp2 </it>and <it>atsrp3 </it>mutants exposed to MMS.</p> <p>Conclusion</p> <p>Expression of specific serpin genes (<it>AtSRP2 </it>and <it>AtSRP3 </it>in <it>Arabidopsis</it>) is required for normal responses of plants following exposure to alkylating genotoxins such as MMS.</p

Utilization and training of paraprofessionals : New York City, 1967-1971.

EducationDoctor of Education (Ed.D.

Ursinus College Bulletin, Winter 1981

Ursinus: Traditionally good sports • Athletics: Are they part of a liberal arts education? • Hall of Fame for Athletes • Ursinus women: They\u27re leading the field • Across the great divide: Comprehending the complexities of the NCAA • Homecoming I • Homecoming II • Businessmen\u27s special • The curtain goes up on the Ritter Center • Bearing good news • Beta signals • Can you manage? • Looking peaked • DuPont grant benefits Ursinus chemistry program • Speaking of... • News notes • Evening School • Marriages • Births • Deathshttps://digitalcommons.ursinus.edu/new_bulletin/1028/thumbnail.jp

NON-PHARMACEUTICAL TREATMENT OF DEPRESSION USING A MULTIMODAL APPROACH

One hundred forty-one individuals suffering from chronic depression, unresponsive to previous drug therapy, were treated with a 44-hour program of education, Cranial Electrical Stimulation (CES), Brain Wave Synchronization (BWS), musical conditioning, and a mentally programmed quartz or glass "crystal" randomly assigned with therapists and patients blinded to the crystal's composition. Eighty· four percent of the depressed patients were improved at the end of two weeks of therapy, apparently as a result of the multimodal therapy and group interaction. The results at three months follow-up suggest a positive subtle energy effect of quartz: 70% of the depressed patients who received quartz remained improved, while only 31.5% of the depressed patients receiving glass remained improved. These differences are highly statistically significant. It appears that mentally "programmed" quartz may offer a significant reinforcement to allow patients better long-term recovery than would occur with placebo (glass). The cost effectiveness of such a therapeutic approach is significant. Other therapists are encouraged to replicate these studies