Distribution and Elimination of 3-Trifluoromethyl-4-Nitrophenol (TFM) by Sea Lamprey (Petromyzon marinus) and Non-target, Rainbow Trout (Oncorhynchus mykiss) and Lake Sturgeon (Acipenser fulvescens)

The pesticide, 3-trifluoromethyl-4-nitrophenol (TFM), has been highly successful in the control of sea lamprey (Petromyzon marinus) populations in the Great Lakes. Treatments with TFM involve applying it to streams, where it targets larval sea lamprey which live burrowed in the stream substrate. While the toxic mechanism of TFM has been elucidated, and its effects on sea lamprey described, its effects on non-target fish species such as rainbow trout (Oncorhynchus mykiss) and lake sturgeon (Acipenser fulvescens) are not as well understood. The present work demonstrated that rainbow trout show a great capacity to detoxify the lampricide using glucuronidation, when exposed to TFM concentrations typically used in TFM applications, and with no adverse physiological effects. Larval sea lamprey, on the other hand, showed very little ability to detoxify TFM, and experienced pronounced reductions in glycogen concentration in the liver. In contrast to previous suggestions, lake sturgeon were able to biotransform TFM and generate TFM-glucuronide at levels that were similar to those observed in rainbow trout. However, they were exposed to a lower concentration of TFM, which does not rule out possible toxic effects of TFM at higher concentrations. In conclusion, this study has demonstrated that rainbow trout readily tolerate TFM at environmentally relevant concentrations, and that lake sturgeon are capable of TFM detoxification. This suggests that the greater sensitivity of lake sturgeon is a result of other factors such as body size, glycogen stores and/or possibly limitations in their capacity to use glucuronidation to detoxify TFM

A study of the physical and chemical properties of the soil as influenced by cowpea culture

"Approved, Merritt Miller. OK P.F. Trowbridge."Typescript.In the past twenty-five years much experimental work has been done with cowpeas, in relation to cultural methods, fertilization, and variety tests, but practically nothing has been written with regard to the direct effect of the plant upon the soil. It has been supposed that the peas are beneficial to a companion crop as, for example, corn. Some have expressed the belief that cowpeas are capable of producing a loosening effect upon the soil. Still others claim that the continuous cropping land to this plant alone, or as a catch crop with wheat, results in an effect deleterious to the best growth of either wheat or peas. As to actual experimental data on these subjects, however, nothing authentic has been discovered.Includes bibliographical reference

Shared geriatric mental health care in a rural community

Introduction: A pilot project in shared mental health care was initiated to explore opportunities to increase the capacity of the rural primary care system as a resource for older people with mental health needs. This was done within a framework for the delivery of best practices in geriatric mental health outreach. Methods: Shared-care strategies combining education and clinical consultation between mentor psychiatrists and family physicians were implemented and then evaluated after one year to identify key factors in the success of approaches to shared mental health care for older people in a rural setting. Results: Results provided new insights into shared care between primary care and specialty geriatric mental health services, rural geriatric mental health service delivery, developmental phases in service learning approaches, and building knowledge networks to promote continuing best practices. Conclusion: The results from the project's process evaluation have been integrated into the development of a permanent shared geriatric mental health care service for the rural setting. Preparation for an outcome evaluation that will focus on the impact on patient care has also been initiated

Nearby CFT's in the operator formalism: The role of a connection

There are two methods to study families of conformal theories in the operator formalism. In the first method we begin with a theory and a family of deformed theories is defined in the state space of the original theory. In the other there is a distinct state space for each theory in the family, with the collection of spaces forming a vector bundle. This paper establishes the equivalence of a deformed theory with that in a nearby state space in the bundle via a connection that defines maps between nearby state spaces. We find that an appropriate connection for establishing equivalence is one that arose in a recent paper by Kugo and Zwiebach. We discuss the affine geometry induced on the space of backgrounds by this connection. This geometry is the same as the one obtained from the Zamolodchikov metric.Comment: 24 pp, CTP#215

Tanning bed use and melanoma: Establishing risk and improving prevention interventions

AbstractPurposeExposure to ultraviolet radiation (UVR) from indoor tanning devices is thought to cause melanoma and other negative health consequences. Despite these findings, the practice of indoor tanning in the United States remains prevalent. In this paper we aim to present a clear discussion of the relationship between indoor tanning and melanoma risk, and to identify potential strategies for effective melanoma prevention by addressing indoor tanning device use.Basic proceduresWe reviewed relevant literature on the risks of indoor tanning, current indoor tanning legislation, and trends in indoor tanning and melanoma incidence. Study was conducted at the University of Southern California, Los Angeles, CA between the years of 2014 and 2015.Main findingsOur findings reaffirm the relationship between indoor tanning and melanoma risk, and suggest a widespread public misunderstanding of the negative effects of indoor tanning.Principal conclusionsThis review argues for an aggressive initiative to reduce indoor tanning in the United States, to design prevention efforts tailored towards specific high risk groups, and the need to better inform the public of the risks of indoor tanning

Experiments on a telluride ore and design of plant for treating same

The ore used in these experiments was a double telluride of gold and silver coming from L Plata, Colorado --page 1

Gravitational Interactions of integrable models

We couple non-linear $\sigma$-models to Liouville gravity, showing that integrability properties of symmetric space models still hold for the matter sector. Using similar arguments for the fermionic counterpart, namely Gross--Neveu-type models, we verify that such conclusions must also hold for them, as recently suggested.Comment: 8 pages, final version to appear in Physics Letters B Revised version, with misprints corrected and some references adde

Family Matters: Gender and Family in Seneca's Phaedra

Seneca the Younger, writing in the early Roman Empire, is the only known Roman tragedian whose works survive. His Phaedra, considered to be one of his earlier tragedies, is centered on the royal family of Athens, consisting of the hero Theseus, his current wife Phaedra, and his son, Hippolytus. Each of these three main characters exhibit shifts in their portrayed gender as the play unfolds. Hippolytus, first introduced as a hunter and strong leader, becomes hunted by his stepmother Phaedra, making him the passive participant in their relationship. This passive role was considered to be the feminine role by the ancient Romans. Theseus, the Athenian hero known for slaying the Minotaur of Crete, stays within the masculine sphere, but shows the full breadth of masculinity. His role as a hero both contrasts and compliments his roles as father and husband. Theseus’ heroic identity causes him to exhibit a damaging form of hyper-masculinity; within his family, he shows a more benign masculine character. Phaedra, for her part, uses the feminine roles of virgin, wife, and mother to conceal her strong masculine traits. She is an apt hunter, choosing to die that she might continue to hunt Hippolytus in the underworld after his tragic death. Seneca, in writing this incestuous myth for a Roman audience, displays the consequences of gender subversion and the tragic effect this has on the royal family of Athens