Study of chemical germicides

Chemical germicides as decontamination agents for spacecraft sterilizatio

Your Mother.

https://digitalcommons.library.umaine.edu/mmb-vp/4576/thumbnail.jp

Formulae for generating standard and individual human cone spectral sensitivities

Normal color perception is complicated. But at its initial stage it is relatively simple, since at photopic levels it depends on the activations of just three photoreceptor types: the long- (L-), middle- (M-) and short- (S-) wavelength-sensitive cones. Knowledge of how each type responds to different wavelengths—the three cone spectral sensitivities—can be used to model human color vision and in practical applications to specify color and predict color matches. The CIE has sanctioned the cone spectral sensitivity estimates of Stockman and Sharpe (Stockman and Sharpe, 2000, Vision Res) and their associated measures of luminous efficiency as “physiologically-relevant” standards for color vision (CIE, 2006; 2015). These LMS cone spectral sensitivities are specified at 5- and 1-nm steps for mean “standard” observers with normal cone photopigments and average ocular transparencies, both of which can vary in the population. Here, we provide formulae for the three cone spectral sensitivities as well as for macular and lens pigment density spectra, all as continuous functions of wavelength from 360 to 850 nm. These functions reproduce the tabulated discrete CIE LMS cone spectral sensitivities for 2-deg and 10-deg with little error in both linear and logarithmic units. Furthermore, these formulae allow the easy computation of non-standard cone spectral sensitivities (and other color matching functions) with individual differences in macular, lens and photopigment optical densities, and with spectrally shifted hybrid or polymorphic L- and M-cone photopigments appropriate for either normal or red-green color vision deficient observers

Sedimentology and kinematics of a large, retrogressive growth-fault system in Upper Carboniferous deltaic sediments, western Ireland

Growth faulting is a common feature of many deltaic environments and is vital in determining local sediment dispersal and accumulation, and hence in controlling the resultant sedimentary facies distribution and architecture. Growth faults occur on a range of scales, from a few centimetres to hundreds of metres, with the largest growth faults frequently being under-represented in outcrops that are often smaller than the scale of feature under investigation. This paper presents data from the exceptionally large outcrops of the Cliffs of Moher, western Ireland, where a growth-fault complex affects strata up to 60 m in thickness and extends laterally for 3 km. Study of this Namurian (Upper Carboniferous) growth-fault system enables the relationship between growth faulting and sedimentation to be detailed and permits reconstruction of the kinematic history of faulting. Growth faulting was initiated with the onset of sandstone deposition on a succession of silty mudstones that overlie a thin, marine shale. The decollement horizon developed at the top of the marine shale contact for the first nine faults, by which time aggradation in the hangingwall exceeded 60 m in thickness. After this time, failure planes developed at higher stratigraphic levels and were associated with smaller scale faults. The fault complex shows a dominantly landward retrogressive movement, in which only one fault was largely active at any one time. There is no evidence of compressional features at the base of the growth faults, thus suggesting open-ended slides, and the faults display both disintegrative and non-disintegrative structure. Thin-bedded, distal mouth bar facies dominate the hangingwall stratigraphy and, in the final stages of growth-fault movement, erosion of the crests of rollover structures resulted in the highest strata being restricted to the proximity of the fault. These upper erosion surfaces on the fault scarp developed erosive chutes that were cut parallel to flow and are downlapped by the distal hangingwall strata of younger growth faults

Use of Short Assessment of Health Literacy for Spanish Adults (SAHLSA-50) to Determine the Health Literacy Rate of the Spanish-speaking Population in an Urban Emergency Department

Background: The Hispanic population presents a great opportunity in terms of potential improvements in clinical outcomes and cost reduction for interventions through assessing and improving health literacy. While there are various tools to assess health literacy, many do not assess comprehensive Spanish health literacy. Objectives: We sought to determine the health literacy rate of our Spanish-speaking population in the ED using the SAHLSA-50 tool. Methods: We surveyed a convenience sample of 300 patients from October to November 2012 that presented to our busy, high volume, urban ED. All subjects completed the SAHLSA-50 tool and demographic form with Spanish-speaking research assistants. Results: 63.3% were women. 8% were age 18-25, 42% were 26-40, 45% were 41-65, and 5% were 65+. 11% had less than 3 years of school, 30% had 4-6 years of school, and 59% had at least 7 years of school. Overall, 83% respondents were health literate. Those with less than 3 years of school were95% in those with 7 or more years of school. The elderly (65+) reported least years of school completed and had the lowest health literacy (56.3%). Conclusions: There was an overall health literacy rate of 83.0%. Importantly, those with lower levels of education and elderly patients were more likely to not be health literate. As a next step, targeting those with less education and the elder within the Hispanic population may yield the most impact for improving health literacy and outcomes

Large droplet impact on water layers

The impact of large droplets onto an otherwise undisturbed layer of water is considered. The work, which is motivated primarily with regard to aircraft icing, is to try and help understand the role of splashing on the formation of ice on a wing, in particular for large droplets where splash appears, to have a significant effect. Analytical and numerical approaches are used to investigate a single droplet impact onto a water layer. The flow for small times after impact is determined analytically, for both direct and oblique impacts. The impact is also examined numerically using the volume of fluid (VOF) method. At small times there are promising comparisons between the numerical results, the analytical solution and experimental work capturing the ejector sheet. At larger times there is qualitative agreement with experiments and related simulations. Various cases are considered, varying the droplet size to layer depth ratio, including surface roughness, droplet distortion and air effects. The amount of fluid splashed by such an impact is examined and is found to increase with droplet size and to be significantly influenced by surface roughness. The makeup of the splash is also considered, tracking the incoming fluid, and the splash is found to consist mostly of fluid originating in the layer

Shifting Organizational Cultures: Developing Leaders in Humanistic Interprofessional Education

Organizational cultures significantly influence faculty and clinician well-being, trainees’ professional identity formation, and the care of patients and families. The ability of interprofessional healthcare teams to work collaboratively is important for safe, high quality, relationship-centered care. A multi-site project, Faculty Development for the Interprofessional Teaching of Humanism,* was initiated to create a national curriculum in humanism and professionalism designed to train interprofessional education (IPE) faculty leaders. Boston Children’s Hospital / Harvard Medical School (BCH/HMS) is the first pediatric site selected to design and implement this curriculum. Our objectives were to: 1) develop a national curriculum in humanism and professionalism for IPE faculty leaders; 2) adapt the curriculum for pediatrics; and 3) create and sustain a faculty fellowship for IPE leaders at BCH/HMS that promotes humanistic values in organizational culture and learning and care environments. We designed and implemented the curriculum at nine national sites. Topics focus on collaboration, communication, and relationships and include: highly functioning teams; advanced team formation; patients’ perspectives; empathy; well-being, resilience, renewal; diversity & inclusion; appreciative inquiry; values; IPE and others. To achieve sustainability at BCH/HMS, we created a unique Faculty Fellowship for Leaders in Humanistic Interprofessional Education. To increase impact, we recruited co-sponsors from departments across BCH. Fellows participate in 1½-hour, twice-monthly small-group sessions for 8 months and design and implement a group project. Twenty-one faculty applied. The first cohort included 11 faculty representing medicine, social work, nursing, and psychology. The Faculty Fellowship provides opportunities for IPE faculty leaders to enhance teaching skills, collaboration, relationships, reflective capacities, and role modeling in humanism and professionalism, and to work together to foster humanistic values within organizational culture. *Supported by a multi-institutional grant from the Josiah Macy, Jr. Foundation (Dr. Branch as national PI; Dr. Rider as site PI) 

Training interprofessional faculty in humanism and professionalism: a qualitative analysis of what is most important

Introduction: The capacity of healthcare professionals to work collaboratively influences faculty and trainees’ professional identity formation, well-being, and care quality. Part of a multi-institutional project*, we created the Faculty Fellowship for Leaders in Humanistic Interprofessional Education at Boston Children’s Hospital/ Harvard Medical School. We aimed to foster trusting relationships, reflective abilities, collaboration skills, and work together to promote humanistic values within learning environments. Objective: To examine the impact of the faculty fellowship from participants’ reports of “the most important thing learned”. Methods: We studied participants’ reflections after each of 16 1½ hour fellowship sessions. Curriculum content included: highly functioning teams, advanced team formation, diversity/inclusion, values, wellbeing/renewal/burnout, appreciative inquiry, narrative reflection, and others. Responses to “What was the most important thing you learned?” were analyzed qualitatively using a positivistic deductive approach. Results: Participants completed 136 reflections over 16 sessions–77% response rate (136/176). Cohort was 91% female; mean age 52.6 (range 32-65); mean years since completion of highest degree 21.4; 64% held doctorates, 36% master’s degrees. 46% were physicians, 27% nurses, 18% social workers, 9% psychologists. 27% participated previously in a learning experience focusing on interprofessional education, collaboration or practice. Most important learning included: Relational capacities/ Use of self in relationships 96/131 (73%); Attention to values 46/131 (35%); Reflection/ Self-awareness 44/131 (34%); Fostering humanistic learning environments 21/131 (16%). Discussion: Results revealed the importance of enhancing relational capacities and use of self in relationships including handling emotions; attention to values; reflection/self-awareness and recognition of assumptions; and fostering humanistic learning environments. These topics should receive more emphasis in interprofessional faculty development programs and may help identify teaching priorities. *Supported in part by a multi-institutional grant from the Josiah Macy, Jr. Foundation (Dr. Branch as PI; Dr. Rider as site PI)

Measurement and Compensation of Horizontal Crabbing at the Cornell Electron Storage Ring Test Accelerator

In storage rings, horizontal dispersion in the rf cavities introduces horizontal-longitudinal (xz) coupling, contributing to beam tilt in the xz plane. This coupling can be characterized by a "crabbing" dispersion term {\zeta}a that appears in the normal mode decomposition of the 1-turn transfer matrix. {\zeta}a is proportional to the rf cavity voltage and the horizontal dispersion in the cavity. We report experiments at the Cornell Electron Storage Ring Test Accelerator (CesrTA) where xz coupling was explored using three lattices with distinct crabbing properties. We characterize the xz coupling for each case by measuring the horizontal projection of the beam with a beam size monitor. The three lattice configurations correspond to a) 16 mrad xz tilt at the beam size monitor source point, b) compensation of the {\zeta}a introduced by one of two pairs of RF cavities with the second, and c) zero dispersion in RF cavities, eliminating {\zeta}a entirely. Additionally, intrabeam scattering (IBS) is evident in our measurements of beam size vs. rf voltage.Comment: 5 figures, 10 page

The Littlewood-Gowers problem

We show that if A is a subset of Z/pZ (p a prime) of density bounded away from 0 and 1 then the A(Z/pZ)-norm (that is the l^1-norm of the Fourier transform) of the characterstic function of A is bounded below by an absolute constant times (log p)^{1/2 - \epsilon} as p tends to infinity. This improves on the exponent 1/3 in recent work of Green and Konyagin.Comment: 31 pp. Corrected typos. Updated references