Looking Beyond the Empirical Data: A Discussion About Out-of-School Youth-Centered Tobacco Prevention Programs

4-H Extension launched an out-of-school smoking cessation initiative aimed at high-risk youth in Michigan. Adults and youth were given educational tools and resources to help prevent smoking in their communities, and youth were offered hands on programs to make better decisions about their use of tobacco products. While there were no significant differences in youth knowledge from start to end of select pilot programs, programs reached a large number of people at a relatively low cost and were well received within communities. Of particular importance were the lessons learned and subsequent discussions about best practices for future programming

Shovel Test Pit Paperwork of Transect 18 From Hotel (8BR240)

This document contains the field notes taken during phase 1 survey for the Hotel (8BR240) shovel test pits

Une étude exploratoire. Interaction entre les dyades mère-nourrisson et père-nourrisson chez les couples à faible revenu

Vingt-neuf parents à faible revenu et leurs nourrissons ont participé à une recherche exploratoire portant sur les interactions parent-nourrisson et décrivant le niveau d'interactions, les similarités et les différences au sein des dyades mère-nourrisson et père-nourrisson. L'échelle de mesure Nursing Child Assessment Teaching Scale, un instrument d'observation standardisé de 73 items, a été utilisée pour mesurer les interactions. Les résultats ont montré que bien que la majorité (69%) des dyades parent-nourrisson n'ont pas démontré de comportements interactifs à risque, près de 31% de l'échantillon étaient désorganisés dans leurs interactions. De plus, les résultats ont démontré que bien que les deux parents étaient sensibles et répondaient aux signaux de leurs nourrissons, les mères étaient plus aptes que les pères à répondre à la détresse de leurs nourrissons alors que les nourrissons étaient plus clairs et répondaient mieux aux pères qu'aux mères. Avec cette information, les cliniciens et les chercheurs peuvent mieux comprendre les interactions au sein du contexte familial et renforcer les programmes d'intervention visant à maintenir et à améliorer les interactions parent-nourrisson.Interaction between low-income mother-infant and father-infant pairs: an exploratory study Twenty-nine low-income parents and their infants participated in an explanatory study about parent-infant interaction — describing the level of interaction and the similarities and differences in mother-infant and father infant pairs. The Nursing Child Assessment Teaching Scale, a 73-item standardized observation instrument, was used to measure interaction. Results showed that although the majority (69%) of parent-infant dyads did not demonstrate risky interactive behaviors, nearly 31% of the sample was disorganized in their interactions. Further, results showed that while both mothers and fathers were sensitive and responsive to their infants' cues, mothers were more apt to respond to their infants' distress than fathers, and infants were clearer and more responsive with their fathers than with their mothers. With this information clinicians and researchers can better understand interactions within a family context and strengthen intervention programs aimed at maintaining and improving parent-infant interactions.Una investigación exploratoria. Interacción entre los pares madre-niño lactante y padre-niño lactante en las parejas a ingreso modesto Veinte-nueve padres con ingreso modesto y sus niños lactantes participaron en una investigación exploratoria sobre las interacciones padre-niño lactante y el nivel de interacciones, las similitudes y las diferencias en el seno de las dyadas madre-niño lactante y padre-niño lactante. Para medir las interacciones se utilizó un instrumento de observación standardizado de 73 elementos, la escala de medida Nursing Child Assessment Teaching Scale. Los resultados indican que aunque la mayoridad (69%) de las dyadas padre-niño lactante no demuestran comportamientos interactivos con riesgo, cerca de 31% de la muestra estaban desorganisados en sus interacciones. Además, los resultados demuestraron que aunque los dos padres eran sensibles y respondian a los señales de sus niños lactantes, las madres estaban más aptas que los padres a responder al desemparo de sus niños cuando los niños estaban más tranquilos y respondian mejor a los padres que a las madres. Con esta información, los clínicos y los investigadores pueden comprender mejor las interacciones en el seno del contexto familial y reforzar programas de intervención aspirando mantener y mejorar las interacciones padre-niño lactante

2008 FORUM Questions

What qualities of the helping person are needed for care in the context of fear?Are the strategies of care different when fear is all around us

Analogues of Disulfides from Allium stipitatum demonstrate potent anti-tubercular activities through drug efflux pump and Biofilm inhibition

Disulfides from Allium stipitatum, commonly known as Persian shallot, were previously reported to possess antibacterial properties. Analogues of these compounds, produced by S-methylthiolation of appropriate thiols using S-methyl methanethiosulfonate, exhibited antimicrobial activity, with one compound inhibiting the growth of Mycobacterium tuberculosis at 17 µM (4 mg L-1) and other compounds inhibiting Escherichia coli and multi-drug-resistant (MDR) Staphylococcus aureus at concentrations ranging between 32-138 µM (8-32 mg L-1). These compounds also displayed moderate inhibitory effects on Klebsiella and Proteus species. Whole-cell phenotypic bioassays such as the spot-culture growth inhibition assay (SPOTi), drug efflux inhibition, biofilm inhibition and cytotoxicity assays were used to evaluate these compounds. Of particular note was their ability to inhibit mycobacterial drug efflux and biofilm formation, while maintaining a high selectivity towards M. tuberculosis H37Rv. These results suggest that methyl disulfides are novel scaffolds which could lead to the development of new drugs against tuberculosis (TB)

Tolerating the Community Detection Resolution Limit with Edge Weighting

Communities of vertices within a giant network such as the World-Wide Web are likely to be vastly smaller than the network itself. However, Fortunato and Barth\'{e}lemy have proved that modularity maximization algorithms for community detection may fail to resolve communities with fewer than $\sqrt{L/2}$ edges, where $L$ is the number of edges in the entire network. This resolution limit leads modularity maximization algorithms to have notoriously poor accuracy on many real networks. Fortunato and Barth\'{e}lemy's argument can be extended to networks with weighted edges as well, and we derive this corollary argument. We conclude that weighted modularity algorithms may fail to resolve communities with fewer than $\sqrt{W \epsilon/2}$ total edge weight, where $W$ is the total edge weight in the network and $\epsilon$ is the maximum weight of an inter-community edge. If $\epsilon$ is small, then small communities can be resolved. Given a weighted or unweighted network, we describe how to derive new edge weights in order to achieve a low $\epsilon$, we modify the ``CNM'' community detection algorithm to maximize weighted modularity, and show that the resulting algorithm has greatly improved accuracy. In experiments with an emerging community standard benchmark, we find that our simple CNM variant is competitive with the most accurate community detection methods yet proposed.Comment: revision with 8 pages 3 figures 2 table

Cargese Lectures on the Kerr/CFT Correspondence

We give a short introduction, beginning with the Kerr geometry itself, to the basic results, motivation, open problems and future directions of the Kerr/CFT correspondence.Comment: Lectures given by A. Strominger at Cargese 2010. References update

Separability of Black Holes in String Theory

We analyze the origin of separability for rotating black holes in string theory, considering both massless and massive geodesic equations as well as the corresponding wave equations. We construct a conformal Killing-Stackel tensor for a general class of black holes with four independent charges, then identify two-charge configurations where enhancement to an exact Killing-Stackel tensor is possible. We show that further enhancement to a conserved Killing-Yano tensor is possible only for the special case of Kerr-Newman black holes. We construct natural null congruences for all these black holes and use the results to show that only the Kerr-Newman black holes are algebraically special in the sense of Petrov. Modifying the asymptotic behavior by the subtraction procedure that induces an exact SL(2)^2 also preserves only the conformal Killing-Stackel tensor. Similarly, we find that a rotating Kaluza-Klein black hole possesses a conformal Killing-Stackel tensor but has no further enhancements.Comment: 27 page

Investigating Ghanaian Allium species for anti-infective and resistance-reversal natural product leads to mitigate multidrug-resistance in tuberculosis

The bulbs of Allium species are a known source of antibacterial phytochemicals. Anti-infective, efflux pump and biofilm inhibitory activities of bulb extracts of selected Ghanaian shallots Allium cepa var aggregatum were evaluated using the HT-SPOTi assay and other whole-cell phenotypic screening techniques to determine their possible mechanisms of action. Ethanol and aqueous extracts of white A. cepa inhibited the growth of Mycobacterium smegmatis mc2 155 and Escherichia coli, respectively. The majority of the Allium extracts significantly (p < 0.05) exhibited efflux pump inhibitory activity against all the acid-fast, Gram-positive and Gram-negative strains used. Hexane and chloroform extract of the pink A. cepa and the aqueous extract of the white A. cepa significantly inhibited M. smegmatis biofilm formation. For Pseudomonas aeruginosa, the inhibition was observed at 250 µg/mL for the aqueous extract (~77.34%) and 125 µg/mL for the hexane extract (~76.51%). The results suggest that Ghanaian shallots could potentially be useful when further developed to tackle antimicrobial resistance, particularly in tuberculosis (TB)

A Psychometric Assessment of Health Literacy Measures among Youth in a Residential Treatment Setting

Minimal research has focused on the health literacy status of adolescents, and few measures have been validated among specific subgroups of youth. One such group is youth living in residential treatment centers. It is currently unknown how well this group is able to read, understand, and use health-related information. The purpose of this study was to assess the psychometric properties of three widely-used health literacy measures among a group of youth at a large residential care facility located in Omaha, NE. Results indicate that all measures are psychometrically adequate for use among this population. Study limitations and implications are provided