| canine exposure to borrelia burgdorferi and prevalence of ixodes dammini (acari: ixodidae) on deer as a measure of lyme disease risk in the northeastern united states. | surveillance programs that identify areas where both the vector (ixodes dammini) and etiologic agent (borrelia burgdorferi) are present may identify the risk of lyme disease and its spread earlier and more accurately than do programs relying on any single method, particularly human case reports. hunter-killed deer (n = 1,204) from 22 counties in maryland, massachusetts, new hampshire, new york, and pennsylvania were examined in fall 1989 and all ectoparasites were identified. the following sprin ... | 1993 | 8433324 |
| free-living spirochetes from cape cod microbial mats detected by electron microscopy. | spirochetes from microbial mats and anaerobic mud samples collected in salt marshes were studied by light microscopy, whole mount and thin section transmission electron microscopy. enriched in cellobiose-rifampin medium, selective for spirochaeta bajacaliforniensis, seven distinguishable spirochete morphotypes were observed. their diameters ranged from 0.17 micron to > 0.45 micron. six of these morphotypes came from southwest cape cod, massachusetts: five from microcoleus-dominated mat samples c ... | 1996 | 9018691 |
| the availability of state-level data on interstate cattle movements in the united states. | knowledge about the patterns of animal movement--particularly feeder-cattle movement--within the usa is necessary in order to anticipate how diseases might be spread geographically. this study was conducted to explore the availability of interstate-level movement data which might be used to develop a more coherent national picture of interstate feeder-cattle movement. state statistical offices of the national agricultural statistics service, 1996 (nass) and departments of agriculture in all 50 s ... | 1998 | 9879593 |
| public health: tobacco taxes and internet sales--2005. end of year issue brief. | raising tobacco taxes is an action that resonates with lawmakers, public health and anti-tobacco advocates, and the majority of the electorate. the relatively broad base of support for increasing excise taxes and the potential for increased tax revenue mitigate the concerns over targeting tobacco-users--23 percent of the population--to pay for state programs and the unreliability of the tobacco tax as a permanent source of revenue. tobacco excise taxes generated $10.2 billion, or about 1.5 perce ... | 2005 | 16715554 |
| using geographic information systems to compare the density of stores selling tobacco and alcohol: youth making an argument for increased regulation of the tobacco permitting process in worcester, massachusetts, usa. | this study is based on a community participatory research (cbpr) partnership between a youth group and a local university to explore whether greater regulation of tobacco permits would reduce the density of tobacco outlets overall, and particularly in low-income, high minority neighbourhoods in worcester, massachusetts, usa. | 2010 | 20817715 |
| potential oversummering and overwintering regions for the wheat stripe rust pathogen in the contiguous united states. | epidemics of wheat stripe rust, caused by puccinia striiformis f. sp. tritici (pst), are more frequent in the regions where pst can oversummer and overwinter. regions for potential oversummering and overwintering of pst were determined in the contiguous united states using a survival index (si) ranging from 0 (most unfavorable) to 10 (most favorable) developed based on long-term weather data. the pathogen can survive in cool summer in the most regions north of latitude 40°n, particularly washing ... | 2014 | 23722926 |
| arrests and incarceration of injection drug users for syringe possession in massachusetts: implications for hiv prevention. | multiperson use of syringes is a major risk behavior responsible for the spread of hiv-1 among injection drug users (idus). in massachusetts, two laws regulate syringes: one is a prescription law prohibiting possession or purchase of syringes without a prescription, and the other makes it illegal to possess drug paraphernalia, including syringes. in 1993, massachusetts amended the prescription law to permit the establishment of syringe exchange programs in two cities. enrolled participants are a ... | 1998 | 9663627 |
| massachusetts needs a pgy-1 option for licensure. | the american dental association (ada) house of delegates voted to eliminate live patient clinical exams in the year 2000. canadian dental graduates take an objective structured clinical examination (osce) for licensure. several states have changed their dental practice acts to permit licensure by mentored experience of a general residency or specialty dental students have led the fight, with some results, to eliminate a practice--live patient exams--that perpetuates unprofessional and potentiall ... | 2012 | 23513345 |
| geographic patterns of herbivory and resource allocation to defense, growth, and reproduction in an invasive biennial, alliaria petiolata. | we investigated geographic patterns of herbivory and resource allocation to defense, growth, and reproduction in an invasive biennial, alliaria petiolata, to test the hypothesis that escape from herbivory in invasive species permits enhanced growth and lower production of defensive chemicals. we quantified herbivore damage, concentrations of sinigrin, and growth and reproduction inside and outside herbivore exclusion treatments, in field populations in the native and invasive ranges. as predicte ... | 2006 | 16502001 |