Residential distribution as a key to suburban industrial development

Thesis (M.C.P.) Massachusetts Institute of Technology. Dept. of City and Regional Planning, 1957.Bibliography: leaves 75-77.by Bernard J. Frieden.M.C.P

Communities in decline : the use and rebuilding of old neighborhoods

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of City and Regional Planning, 1962.Vita.Includes bibliographical references (leaves 273-283).by Bernard J. Frieden.Ph.D

Why Are Regulations Changed? A Parcel Analysis of Upzoning in Los Angeles

Planners, officials, and neighborhood groups often debate zoning changes, yet there is little empirical evidence explaining why zoning and other land use regulations are changed. I use logistic regression models to examine density-enabling rezoning (“upzoning”) in Los Angeles. I find that upzoning occurs where there are development opportunities combined with limited political resistance. Upzoning is most likely on well-located parcels zoned for low-intensity, nonresidential uses. Meanwhile, homeowners—and particularly homeowners with access to valuable amenities—are associated with regulatory stasis. I conclude by recommending strategies for addressing homeowners’ concerns about higher density housing

Basis for treatment of tuberculosis among HIV-infected patients in Tanzania: the role of chest x-ray and sputum culture

BACKGROUND: Active tuberculosis (TB) is common among HIV-infected persons living in tuberculosis endemic countries, and screening for tuberculosis (TB) is recommended routinely. We sought to determine the role of chest x-ray and sputum culture in the decision to treat for presumptive TB using active case finding in a large cohort of HIV-infected patients. METHODS: Ambulatory HIV-positive subjects with CD4 counts ≥ 200/mm3 entering a Phase III TB vaccine study in Tanzania were screened for TB with a physical examination, standard interview, CD4 count, chest x-ray (CXR), blood culture for TB, and three sputum samples for acid fast bacillus (AFB) smear and culture. RESULTS: Among 1176 subjects 136 (12%) were treated for presumptive TB. These patients were more frequently male than those without treatment (34% vs. 25%, respectively; p = 0.049) and had lower median CD4 counts (319/μL vs. 425/μL, respectively; p < .0001). Among the 136 patients treated for TB, 38 (28%) had microbiologic confirmation, including 13 (10%) who had a normal CXR and no symptoms. There were 58 (43%) treated patients in whom the only positive finding was an abnormal CXR. Blood cultures were negative in all patients. CONCLUSION: Many ambulatory HIV-infected patients with CD4 counts ≥ 200/mm3 are treated for presumptive TB. Our data suggest that optimal detection requires comprehensive evaluation, including CXR and sputum culture on both symptomatic and asymptomatic subjects.National Institutes of Health (A1 45407); Fogarty International Center (D43-TW006807

Notes on Methodology

Documentation created as part of the Perceptual Form of the City, a research project investigating the individual’s perception of the urban landscape. Includes a review of techniques used, general critique and future proposals

The market needs help: The disappointing record of home energy conservation

Energy conservation is widely considered to be the most promising solution to the nation's energy problems. The dominant public policy in this field has been to encourage conservation by decontrolling energy prices and relying on consumers to respond to price increases in ways that best meet their individual needs. This policy so far has led to only small reductions in energy use within the home, and even these reductions are only partly attributable to conservation behavior. Among the many obstacles to residential conservation that have come to light, a major one is the difficulty of predicting what savings will result from any specific investment in home energy efficiency. Ten years of experience after the 1973 oil crisis raises doubts about the feasibility of residential conservation as a short-term energy strategy, and suggests that new policies are needed to improve the operation of the market for conservation investment.