Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Suburbanization”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 127 records · Page 7Linked to original sources
PubMed1993

Locational returns to human capital: minority access to suburban community resources.

The suburbanization of racial and ethnic minorities is analyzed in terms of the locational resources provided by their communities of residence. In suburbs in the New York CMSA, non-Hispanic whites and Asians, on average, live in communities with higher average socioeconomic status, while Hispanics and blacks live in the less desirable suburbs. Models predicting suburban socioeconomic status for each racial/ethnic group show that whites and Hispanics receive consistent returns on income, acculturation, and family status. Asians' locational patterns differ because they are unrelated to measures of acculturation; for blacks, locational outcomes correspond least to any of these human capital characteristics.

Acculturation↗
PubMed1996

Prevalence and impact of exposure to interpersonal violence among suburban and urban middle school students.

OBJECTIVE: The purpose of this study was to determine the prevalence of exposure to violence in preadolescent children in communities that vary by family income and to determine patterns of physical symptomatology and communication after exposure to a traumatic event. METHODS: Two hundred twenty-eight sixth-grade students from a suburban middle school (school A) and 209 sixth-grade students from an urban middle school (school B) in the Philadelphia metropolitan area were surveyed by a group-administered anonymous questionnaire. RESULTS: Two hundred two students (89%) from school A and 200 students (96%) from school B reported knowing someone who had been robbed, beaten, stabbed, shot, or murdered. One hundred twenty-nine students (57%) and 183 students (88%), respectively, witnessed a robbing, beating, stabbing, shooting, or murder. Ninety-one students (40%) and 141 students (67%) had been personally robbed, beaten up, stabbed, shot, or caught in gun cross fire. One hundred thirty-four (59%) and 152 (73%) reported hearing gunfire in their neighborhood. One hundred eighty-eight (82%) and 202 (97%) had at least one positive response in all three categories: knowing a victim, witnessing an event, and being a victim of violence. The proportion of positive responses from school B was significantly greater than the proportion from school A for all of these results. Many students reported symptoms associated with somatization syndromes, depression, and posttraumatic stress disorder; the school B group had significantly more symptoms than the school A group. Both student groups had discussed episodes of witnessing an event or victimization with others, mostly family members and friends, and expressed feelings of fear, anger, sadness, and frustration about these episodes. A very low percentage of the students (from 1% to 8% in the different analyses) consulted a medical or mental health professional. CONCLUSIONS: These data support a substantial prevalence or exposure to violence for suburban and, even more dramatically, for urban middle school-aged children. The higher-prevalence group reported a higher incidence of symptoms sometimes seen after traumatic stress. Many students in both groups expressed multiple feelings about their exposure to violence, and most talked to someone about their exposure; rarely was this person a health professional.

Chi-Square Distribution↗
PubMed1998

Fasting plasma insulin levels in an unselected Prague suburban population.

OBJECTIVE: The aim of the study was to determine the levels of fasting plasma insulin in an unselected population of a Prague suburban community and correlate the levels of insulin with other metabolic and anthropometric parameters which could be directly or indirectly associated with insulin levels. RESEARCH DESIGN AND METHODS: A total of 835 adult inhabitants, the Prague suburban community, were examined. Mean age of examined people was 44.9 +/- 16.9 years, the group included 370 men and 465 women, 189 of the latter were in the menopause. The parameters examined included the fasting plasma levels of insulin, glycaemia, total cholesterol, HDL cholesterol and triacylglycerols; LDL cholesterol and, using the basic anthropometric data, the body mass index (BMI) and the waist/hip ratio (WHR) were calculated. RESULTS: The levels of all parameters were divided in ten-year groups of men and women. The average levels of fasting plasma insulin in all ten-year groups of men and women were normal. We found in the men small but constant rise of fasting insulinaemia in the decades. This was not observed in women, where the insulin levels were similar up to the time after menopause, then the level of average plasma insulin rose significantly. We found the positive correlation of plasma insulin levels with triacylglycerol levels (p < or = 0.001), BMI (p < or = 0.001) and WHR (p < or = 0.001) and a negative correlation with plasma HDL cholesterol (p < or = 0.001) in the whole group of probands. No significant correlation was demonstrated between fasting insulinaemia and total or LDL cholesterol. When dividing the group by age and sex, the strongest positive correlations were seen between insulin and triacylglycerols, glycaemia, BMI, and WHR, and negative correlations between insulin and HDL cholesterol. CONCLUSION: Fasting plasma insulin levels in an unselected population were within the normal range, but follow a continuous and steady upward course in men while did not change until after the menopause when they bounce in women; compared to insulin levels in younger women, insulinaemia does not increase up to 55 years of age. The strongest positive correlations were demonstrated between plasma insulin and triacylglycerols, and between insulin and BMI and WHR in men and postmenopausal but not premenopausal women whereas a negative correlation was observed between fasting plasma insulin and HDL cholesterol.

Adolescent↗
PubMed1994

Oral health knowledge, attitude and behaviour of 12-year-old suburban and rural school children in Nigeria.

The aim of the study was to investigate the oral health knowledge, attitudes and behaviour of 12-year-old primary school children living in suburban and rural Nigeria. A total of 574 children mostly from low socioeconomic status were studied through questionnaires. Relatively high level of oral health knowledge and positive attitudes to prevention were found. Majority of suburban children (72.5%) cleaned their teeth with toothbrush and toothpaste while most of the rural dwellers (49.8%) used chewing sticks. Overall, 83.5 per cent of all the children had never visited the dentist despite the fact that most of them believed it was necessary to visit the dentist for check-up. It was concluded that oral health education programme should be targeted to the need of the communities.

Attitude to Health↗
PubMed1992

Mobile community treatment in inner city and suburban Sydney.

Intensive and assertive community based treatment was provided to 27 inner city and 45 suburban severely and chronically mentally ill patients in Sydney. The teams use assertive outreach methods to address the needs of these most difficult to treat patients who have only sporadically complied with outpatient treatment and who frequently required hospitalisation. The staff-patient ratio at 1:10 on both teams is much higher than in the conventional mental health centres. Preliminary outcomes indicate that the number of hospital bed days of the suburban patients dropped by 67%, that stability in accommodation for inner city patients increased, and that functioning improved significantly for patients treated by both teams.

Adult↗
PubMed1975

Police training in domestic crises: a suburban approach.

This paper discusses an intervention method that was presented to develop joint police-mental health programs with seven suburban police departments. A seminar on family crisis intervention was instituted. The program method and goals are described and the result of numerous new requests by police for mental health consultation are discussed. Results suggest that a training approach different from urban programs is needed and wanted by suburban police. The initiative for developing such programs clearly falls on the shoulders of community mental health practitioners.

Crisis Intervention↗
PubMed2002

Scientist and policy-maker response types and times in suburban watersheds.

Differences between scientist and policy-maker response types and times, or the "how" and "when" of action, constrain effective water resource management in suburbanizing watersheds. Policy-makers are often rushed to find a single policy that can be applied across an entire, homogeneous, geopolitical region, whereas scientists undertake multiyear research projects to appreciate the complex interactions occurring within heterogeneous catchments. As a result, watershed management is often practiced with science and policy out of synch. Meanwhile, development pressures in suburban watersheds create changes in the social and physical fabric and pose a moving target for science and policy. Recent and anticipated advances in the scientific understanding of urbanized catchment hydrology and pollutant transport suggest that management should become increasingly sensitive to spatial heterogeneities in watershed features, such as soil types, terrain slopes, and seasonal watertable profiles. Toward this end, policy-makers should encourage funding scientific research that characterizes the impacts of these watershed heterogeneities within a geopolitical zoning and development framework.

Cities↗
PubMed1986

Work problems associated with suburban train driving.

Problems associated with metropolitan train driving were investigated in a questionnaire survey of 562 suburban train drivers. The major problems were safety issues (fatal train accidents, persons on the track, vandalism, sudden signal changes, no emergency communication system in the driver's cabin), the high demand for mental concentration, irregular working hours, and ear discomfort on entering tunnels. One-third of drivers had been involved in a train fatality. Near fatalities, vandalism, sudden signal changes and track maintenance workers were frequently encountered. Fifty-six percent of shifts involved some night work. Improvements in working conditions in these problem areas could lead to a safer and more pleasant working environment and could improve the health and personal well-being of suburban train drivers.

Journal Article↗
PubMed1987

Rickettsial antibody in southern France: antibodies to Rickettsia conorii and Coxiella burnetii among urban, suburban and semi-rural blood donors.

Three hundred and twenty-five sera from blood donors in the south of France were examined by means of the indirect fluorescent antibody test. 18% of the sera had antibodies to Rickettsia conorii, with a significantly higher prevalence (26%) in urban and suburban areas than in semi-rural areas (13 to 16%). This supports the view that in the south of France the highest prevalence of Mediterranean Spotted Fever is suburban. 5% of the sera had antibodies to Coxiella burnetti in this area, in which Q fever is endemic.

Adolescent↗
PubMed2005

Size distribution of polycyclic aromatic hydrocarbons in urban and suburban sites of Beijing, China.

PAHs in five-stage size segregated aerosol particles were investigated in 2003 at urban and suburban sites of Beijing. The total concentration of 17 PAHs ranged between 0.84 and 152 ng m(-3), with an average of 116 ng m(-3), in urban area were 1.1-6.6 times higher than those measured in suburban area. It suggested a serious pollution level of PAHs in Beijing. PAHs concentrations increased with decreasing the ambient temperature. Approximately 68.4-84.7% of PAHs were adsorbed on particles having aerodynamic diameter 2.0 microm. Nearly bimodal distribution was found for PAHs with two and three rings, more than four rings PAHs, however, followed unimodal distribution. The overall mass median diameter (MMD) for PAHs decreased with increasing molecular weight. Diagnostic ratios and normalized distribution of PAHs indicated that the PAHs in aerosol particles were mainly derived from fossil fuel combustion. Coal combustion for domestic heating was probably major contributor to the higher PAHs loading in winter, whereas PAHs in other seasons displayed characteristic of mixed source of gasoline and diesel vehicle exhaust. Biomass burning and road dust are minor contributors to the PAHs composition of these aerosol particles. Except for source emission, other factors, such as meteorological condition, photochemical decay, and transportation from source to the receptor site, should to be involved in the generation of the observed patterns.

Aerosols↗
PubMed2005

The prevalence of diabetes mellitus and impaired fasting glucose/glycaemia (IFG) in suburban and rural Nepal-the communities--based cross-sectional study during the democratic movements in 1990.

A rising prevalence of Type 2 diabetes and impaired fasting glucose/glycaemia (IFG) was recently reported in the urban areas of Nepal by Singh and Bhattarai [D.L. Singh, M.D. Bhattarai, High prevalence of diabetes and impaired fasting glycaemia in urban Nepal, Diabet. Med. 20 (2003) 170-171] in the first population-based study based on the revised diagnostic criteria of ADA-1997 and WHO-1998. In comparison with our community-based survey done in 1990 in suburban and rural areas of Nepal, the current data show a surprisingly rapid increase in the prevalence of diabetes in the Nepalese population. In our 1990 study, diabetes and IFG, respectively, were present in 1.4 and 2.5% of people > or =20 years old in suburban village (Bhadrakali) compared with 0.3 and 0.7% in a rural village (Kotyang). In a short communication, Singh and Bhattarai found the rates to be 14.6 and 9.1% in urban areas, and 2.5 and 1.3% in rural areas. This phenomena appears to have been influenced more by rapid urbanization and changes in lifestyles after the ongoing democratic movements that have taken place since 1990 in Nepal. Moreover, our new analysis of the data provide baseline features for the planning of health care policy and establishment of medical priorities in modern day Nepal.

Adult↗
PubMed2002

Anthropogenic sources of arsenic and copper to sediments in a suburban lake, Northern Virginia.

Mass balances of total arsenic and copper for a suburban lake in densely populated northern Virginia were calculated using date collected during 1998. Mass-balance terms were precipitation; stream inflow, including road runoff; stream outflow; and contributions from leaching of pressure-treated lumber. More mass of arsenic and copper was input to the lake than was output the 1998 lake-retention rates were 70% for arsenic and 20% for copper. The arsenic mass balance compared well with a calculated annual mass accumulation in the top 1 cm of the lake sediments; however, the calculated contribution of copper to the lake was insufficient to account for the amount of copper in this zone. Leaching experiments were conducted on lumber treated with chromated copper arsenate (CCA) to quantify approximate amounts of arsenic and copper contributed by this source. Sources to lake sediments included leaching of CCA-treated lumber (arsenic, 50%; copper, 4%), streamwater (arsenic, 50%; copper, 90%), and atmospheric deposition (arsenic, 1%; copper, 3%). Results of this study suggest that CCA-treated lumber and road runoff could be significant nonpoint sources of arsenic and copper, respectively, in suburban catchments.

Arsenates↗
PubMed2003

Public perceptions of air quality and quality of life in urban and suburban areas of London.

A comparative study was undertaken at two different sites (one urban, one suburban) in Greater London in order to examine whether there was a relationship between publicly available air quality data and the public's perception of air quality. Perceptions of air quality and its role as a potential quality of life indicator was also investigated. A total of 200 people were interviewed in Wood Green and Wimbledon in 1999 and air quality data were obtained simultaneously from the nearest appropriate monitoring station. The study has enabled a comparison between the public's perception of air quality and the actual monitored concentration values. The survey results reveal how seriously the public regards air pollution from road traffic in terms of their quality of life and identifies the attitudes of the public to nuisance from road traffic. The results reveal that the public's perception of air quality is not a reliable indicator of the actual levels of air pollution in their area. The results also revealed that air pollution issues generated as a result of road traffic are of high importance in terms of people's quality of life when compared to other aspects of their quality of life. The study revealed that residents in the urban area (Wood Green) were more disturbed by road traffic than residents in the suburban area (Wimbledon). Out of all the disturbances listed, it was found that residents were more disturbed by vehicle-derived fumes, dust and dirt than other aspects of road traffic related nuisance. The TELETEXT/CEEFAX service on air quality was little used by the public as a means of obtaining information on air pollution.

Adolescent↗
PubMed2005

Quantification of monosaccharide anhydrides by liquid chromatography combined with mass spectrometry: application to aerosol samples from an urban and a suburban site influenced by small-scale wood burning.

Levels of the monosaccharide anhydride (MA) levoglucosan and its isomeric compounds galactosan and mannosan were quantified in the PM10 fraction (particulate matter < or = 10 microm in aerodynamic diameter) of ambient aerosols from an urban (Oslo) and a suburban (Elverum) site in Norway, both influenced by small-scale wood burning. MAs are degradation products of cellulose and hemicellulose, and levoglucosan is especially emitted in high concentrations during pyrolysis and combustion of wood, making it a potential tracer of primary particles emitted from biomass burning. MAs were quantified using a novel high-performance liquid chromatography/ high-resolution mass spectrometry-time of flight method. This approach distinguishes between the isomeric compounds of MAs and benefits from the limited sample preparation required before analysis, and no extensive derivatization step is needed. The highest concentrations of levogucosan, galactosan, and mannosan (sigmaMA) were recorded in winter because of wood burning for residential heating (sigmaMA(MAX) = 1,240 ng m(-3)). This finding was substantiated by a relatively high correlation (R2 = 0.64) between the levoglucosan concentration and decreasing ambient temperature. At the suburban site, sigmaMA accounted for 3.1% of PM10, whereas the corresponding level at the urban site was 0.6%. The mass size distribution of MAs associated with atmospheric aerosols was measured using a Berner cascade impactor. The size distribution was characterized with a single mode at 561 nm. Ninety-five percent of the mass concentration of the MAs was found to be associated with particles < 2 micro.m. A preliminary attempt to estimate the contribution of wood burning to the mass concentration of PM10 in Oslo using levoglucosan as a tracer indicates that 24% comes from wood burning. This is approximately a factor of 2 lower than estimated by the AirQUIS dispersion model.

Aerosols↗
PubMed2006

Suburban leptospirosis: atypical lymphocytosis and gamma-delta T cell response.

Leptospirosis is a zoonotic disease associated with a changing global epidemiology. Recently, an increased incidence of canine leptospirosis in the northeastern United States and Canada has been associated with increasing rates of infection among reservoir hosts, such as skunks, raccoons, and squirrels, that are common in suburban settings. We describe a case of leptospirosis that provides new insight into the epidemiology, diagnosis, and pathogenesis of this disease acquired in the suburban setting. Atypical lymphocytosis corresponded to an expansion of gamma-delta T cells in peripheral blood.

Animals↗
PubMed1978

The changing urban-suburban distribution of medical practice in large American metropolitan areas.

The twenty largest multi-county SMSAs in the U. S. were studied for trends in the suburbanization of medical practice from 1959 to 1974. Fifteen of them allowed a distinction between suburbs and central city on the county level according to criteria developed from a New York City pilot study. In all SMSAs, the density of hospital-based physicians was higher in central cities than in suburbs and still increasing more rapidly there, though hospital practice is also starting to grow in the suburbs at an appreciable rate. The same trends were found for physicians in non-patient care activities. Office based specialists in large Northeastern SMSAs increased much more rapidly in the urbanized suburbs than in the central cities. In the Southern and Western SMSAs, on the contrary, office-based specialists continued to increase rapidly in the central cities despite concentrations already far greater than in the Northeast. Suburban desities were growing more slowly in these areas. General practitioners declined uniformly everywhere, apparently simply by attrition. Implications of these trends for health care are discussed.

Family Practice↗
PubMed2004

Population structure of the large Japanese field mouse, Apodemus speciosus (Rodentia: Muridae), in suburban landscape, based on mitochondrial D-loop sequences.

Genetic structure of the large Japanese field mouse populations in suburban landscape of West Tokyo, Japan was determined using mitochondrial DNA control region sequence. Samples were collected from six habitats linked by forests and green tract along the Tama River, and from two forests segregated by urban areas from those continuous habitats. Thirty-five haplotypes were detected in 221 animals. Four to eight haplotypes were found within each local population belonging to the continuous landscape. Some haplotypes were shared by two or three adjacent local populations. On the other hand, two isolated habitats were occupied by one or two indigenous haplotypes. Significant genetic differentiation between all pairs of local populations, except for one pair in the continuous habitats, was found by analysis of molecular variance (amova). The geographical distance between habitats did not explain the large variance of pairwise F(ST)-values among local populations. F(ST)-values between local populations segregated by urban areas were higher than those between local populations in the continuous habitat, regardless of geographical distance. The results of this study demonstrated quantitatively that urban areas inhibit the migration of Apodemus speciosus, whereas a linear green tract along a river functions as a corridor. Moreover, it preserves the metapopulation structure of A. speciosus as well as the corridors in suburban landscape.

Animals↗
PubMed2001

Limited response to cardiac arrest by police equipped with automated external defibrillators: lack of survival benefit in suburban and rural Indiana--the police as responder automated defibrillation evaluation (PARADE).

OBJECTIVE: To assess the out-of-hospital cardiac arrest (OHCA) survival advantage after providing police with automated external defibrillators (AEDs) in rural and suburban Indiana. METHODS: An observational evaluation was conducted in six Indiana counties (population: 464,741) before (retrospective) and after (prospective) training and equipping police with AEDs. The primary outcome evaluated was survival to hospital discharge for all cases of ventricular tachycardia/ventricular fibrillation (VT/VF) OHCA. Other factors evaluated include age, gender, race, arrest location, witnessed arrest, bystander cardiopulmonary resuscitation, response intervals, and survival to discharge for all OHCAs. Results are reported using chi-square, Student's t-test, and logistic regression. RESULTS: Police were equipped with 112 AEDs, increasing total defibrillator capability by 43.2%. During the study period, AED-equipped police responded prior to emergency medical services (EMS) in 26 of 388 cases (6.7%). The time intervals from 911 call-to-scene and 911 call-to-shock were shortened by 1.6 minutes (95% confidence interval [95% CI] = 0.0 to 3.1, p = 0.05) and 4.8 minutes (95% CI = 1.3 to 8.3, p = 0.008), respectively, with police response as compared with EMS response. Survival to hospital discharge for VT/VF OHCA was 15.0% (3/20) in cases in which police responded first and 10.0% (16/160) in cases in which EMS responded first (relative risk [RR] 0.63, 95% CI = 0.17 to 2.39, p = 0.45). Survival to hospital discharge for VT/VF OHCA did not improve from the prestudy period (16/204, 7.8%) to after police AED availability (19/180, 10.6%) (RR 0.72, 95% CI = 0.36 to 1.45, p = 0.38). CONCLUSIONS: Out-of-hospital cardiac arrest survival in suburban and rural Indiana did not improve after police were equipped with AEDs, likely related to poor police response.

Adult↗