Pulsed coulometric detection with automatic rejection of background signal in surface-oxide catalyzed anodic detections at gold electrodes in flow-through cells

A variation of Pulsed Coulometric Detection (PCD) is described in which the detection potential is scanned in a cyclic fashion during current integration to achieve automatic and virtual elimination of baseline drift caused by surface roughening and changes in pH. The technique is examined at a Au electrode for flow-injection determination if thiourea which is typical of numerous sulfur compounds whose anodic reactions are catalyzed by formation of surface oxide. The baseline decays quickly to a near-zero equilibrium value following start-up and is unchanged for a pH step of ca. 2 units. The technique is concluded to be compatible with pH-gradient chromatography

Snapshot 2005: Where the American Public Stands on Terrorism and Preparedness Four Years after September 11

The National Center for Disaster Preparedness (NCDP) 2005 survey of the American public’s attitudes and views on terrorism, preparedness, and associated issues is the latest in a series of national surveys administered annually beginning in the months after September 11, 2001. The survey was completed in July 2005, just after the London Underground bombings and just before Hurricane Katrina. NCDP commissioned national and New York City public opinion polls in the immediate aftermath of September 11, 2001 to gauge the American public’s views and attitudes on a wide range of topics germane to disaster preparedness and emergency events. Since the first polls which were completed 3 and 6-months after September 11, 2001, NCDP has annually commissioned a survey which goes to the field in July-August, just before the anniversary of September 11. The 2005 survey was the fourth annual. Each survey includes trended questions as well as “one-off” questions appropriate to the given time period. Trended questions include confidence in government; willingness and ability to evacuate; personal and family preparedness plans; personal sacrifice; community preparedness; perceptions and engagement of all-hazard preparedness; and other questions thematic with the afore listed.. All questions are cross-tabulated with a variety of demographics including race, age, gender, income, region, size of community, political affiliation, and education. Further, select questions establishing a division of respondent (e.g. those having personal and family preparedness plans versus those who do not) are cross-tabulated with other selected questions to observe correlations. (e.g. awareness of community preparedness plans). The surveys are developed by NCDP investigators in conjunction with Marist, who administers the survey, codes the data, and produces the frequency tables. Full data and trend tables are available on request

Psychiatric Symptomatology among Individuals in Alcohol Detoxification Treatment

The coexistence of psychiatric symptomatology among individuals receiving longer-term treatment for alcohol use disorders has been well-established; however, less is known about comorbidity among individuals receiving alcohol detoxification. Using the Brief Symptom Inventory (BSI; Derogatis, 1992), we compared psychiatric symptomatology among 815 individuals receiving short-term detoxification services with normative data from nonpatients, psychiatric patients, and out-of-treatment individuals using street drugs. Findings revealed that individuals in the current sample reported a wide range of psychiatric symptoms with over 80% meeting BSI criteria for diagnosable mental illness. These BSI scores were significantly more severe than those reported by out-of-treatment individuals using street drugs and most closely resembled BSI scores reported for adult psychiatric inpatients. Findings suggest that routine screening for severe mental health symptoms appears warranted in detoxification units. Such screening would greatly increase the chance that coexistence of substance use and other psychiatric disorders would be properly addressed in ongoing treatment

The 2008 American Preparedness Project: Why Parents May Not Heed Evacuation Orders and What Emergency Planners, Families and Schools Need to Know

Since 2002, the National Center for Disaster Preparedness (NCDP) at Columbia University's Mailman School of Public Health, and The Children's Health Fund (CHF), have conducted annual surveys of public attitudes and personal preparedness in the aftermath of the terror attacks of September 11, 2001. Produced in collaboration with the Marist College Institute for Public Opinion (MIPO), each is a random-dial telephone survey of approximately 1,300 - 1,500 adults stratified according to US Census 2000 data. Current and trend data from these surveys reveal a disjuncture between Americans' awareness and sensitivity to possible natural and man-made threats and their consistently low levels of personal preparedness. Each survey, including the current, have included trended questions as well as "one-off" questions appropriate to the given time period. Trended questions ask about confidence in government; willingness and ability to evacuate; personal and family preparedness plans; personal sacrifice; community preparedness; and perceptions and engagement of all-hazard preparedness. All questions are cross-tabulated with a variety of demographic characteristics including race, age, gender, income, and region, size of community, political affiliation, and education. Further, select questions establishing a division of respondent (e.g. those having personal and family preparedness plans vs. those who do not) are cross-tabulated with other selected questions to observe correlations (e.g. awareness of community preparedness plans). The surveys are developed by NCDP and CHF investigators in conjunction with MIPO, who administers the survey, codes the data, and produces the frequency tables

The American Preparedness Project: Where the US Public Stands in 2007 on Terrorism, Security, and Disaster Preparedness

Since 2002, the National Center for Disaster Preparedness (NCDP) at Columbia University's Mailman School of Public Health and The Children's Health Fund (CHF), have conducted annual surveys of public attitudes and personal preparedness in the aftermath of the terror attacks of September 11, 2001. Produced in collaboration with the Marist College Institute for Public Opinion (MIPO), each is a random-dial telephone survey of a representative random sample of the US population (selected consistent with demographic characteristics of the most recent available update of the 2000 census). Each survey, including the current, has included a set of questions repeated every year, which generate trend data, as well as questions specific to events current to each study period. Repeated questions ask about confidence in government; willingness and ability to evacuate; extent of personal and family preparedness; and perceptions of community preparedness. All questions are compared across a variety of demographic characteristics including race, age, gender, income, and region, size of community, political affiliation, and education. Further, the responses to select questions, such as awareness of community preparedness plans, are compared across certain groups of respondents (e.g. those having personal and family preparedness plans vs. those who do not). The surveys are developed by NCDP and CHF investigators in conjunction with MIPO, who administers the survey, codes the data, and produces the frequency tables

Global Gene Expression of Prochlorococcus ecotypes in Response to Changes in Nitrogen Availability

Nitrogen (N) often limits biological productivity in the oceanic gyres where Prochlorococcus is the most abundant photosynthetic organism. The Prochlorococcus community is composed of strains, such as MED4 and MIT9313, that have different N utilization capabilities and that belong to ecotypes with different depth distributions. An interstrain comparison of how Prochlorococcus responds to changes in ambient nitrogen is thus central to understanding its ecology. We quantified changes in MED4 and MIT9313 global mRNA expression, chlorophyll fluorescence, and photosystem II photochemical efficiency (Fv/Fm) along a time series of increasing N starvation. In addition, the global expression of both strains growing in ammonium-replete medium was compared to expression during growth on alternative N sources. There were interstrain similarities in N regulation such as the activation of a putative NtcA regulon during N stress. There were also important differences between the strains such as in the expression patterns of carbon metabolism genes, suggesting that the two strains integrate N and C metabolism in fundamentally different ways

ROTATIONAL-DYNAMICS OF SOLID C-70 - A NEUTRON-SCATTERING STUDY

PMID: 10011126PMID: 10011126 This work at the University of Sussex at supported by the Science and Engineering Research Council, U.K.PMID: 10011126 This work at the University of Sussex at supported by the Science and Engineering Research Council, U.K.PMID: 10011126 This work at the University of Sussex at supported by the Science and Engineering Research Council, U.K.We report the results of neutron-diffraction and low-energy neutron-inelastic-scattering experiments on high-purity solid C-70 between 10 and 640 K. Thermal hysteresis effects are found to accompany structural changes both on cooling and on heating. The observed diffuse scattering intensity does not change with temperature. At 10 K broad librational peaks are observed at 1.82(16) meV [full width at half maximum=1.8(5) meV]. The peaks soften and broaden further with increasing temperature. At and above room temperature, they collapse into a single quasielastic line. At 300 K, the diffusive reorientational motion appears to be somewhat anisotropic, becoming less so with increasing temperature. An isotropic rotational diffusion model, in which the motions of adjacent molecules are uncorrelated, describes well the results at 525 K. The temperature dependence of the rotational diffusion constants is consistent with a thermally activated process having an activation energy of 32(7) meV.This work at the University of Sussex at supported by the Science and Engineering Research Council, U.K

Bombus griseocollis.

17 pages : illustrations ; 26 cm.This paper describes and illustrates the egg, fifth, first, and fourth larval instars, as well as the female pupa of Bombus (Cullumanobombus) griseocollis (DeGeer), all collected from a single nest in June 2017 in Wisconsin. In so doing, attempts are made to understand the biological significance of the anatomical and behavioral features of these various life stages

National Status and Trends Bioeffects Program: field methods

Environmental quality indicators provide resource managers with information useful to assess coastal condition and scientifically defensible decisions. Since 1984, the National Oceanic and Atmospheric Administration (NOAA), through its National Status and Trends (NS&T) Program, has provided environmental monitoring data on chemical, physical, and biological indicators of coastal environments. The program has two major monitoring components to meet its goals. The Bioeffects Assessments Program evaluates the health of bays, estuaries, and the coastal zone around the nation using the Sediment Quality Triad technique that includes measuring sediment contaminant concentrations, sediment toxicity and benthic community structure. The Mussel Watch Program is responsible for temporal coastal monitoring of contaminant concentrations by quantifying chemicals in bivalve mollusks. The NS&T Program is committed to providing the highest quality data to meet its statutory and scientific responsibilities. Data, metadata and information products are managed within the guidance protocols and standards set forth by NOAA’s Integrated Ocean Observing System (IOOS) and the National Monitoring Network, as recommended by the 2004 Ocean Action Plan. Thus, to meet these data requirements, quality assurance protocols have been an integral part of the NS&T Program since its inception. Documentation of sampling and analytical methods is an essential part of quality assurance practices. A step-by–step summary of the Bioeffects Program’s field standard operation procedures (SOP) are presented in this manual