A simple method for estimation of coagulation efficiency in mixed aerosols

Aerosols of KBr and AgNO3 were mixed, exposed to light in a glass tube and collected in the dark. About 15% of the collected material was reduced to silver upon development. Thus, two aerosols of particles that react to form a photo-reducible compound can be used to measure coagulation efficiency

Possibility of growth of airborne microbes in the Jovian atmosphere

Efforts to show growth activity of anaerobic bacteria in aerosolized particles suspended in anaerobic gas (N2) are described. Evidence of spore generation in nitrogen was obtained. Results are discussed

Studies on propagation of microbes in the airborne state

C-14 metabolic studies on an aerosol mixture of Escherichia coli and a coliphage are indicative of phage production

Evidence for metabolic activity of airborne bacteria

Aerosols of the bacterium Serratia marcescens, and of uniformly labelled C-14 glucose, were created simultaneously and mixed in tubing leading to an aerosol chamber. During a subsequent period of about 5 hrs, C-14O2 was produced unequivocally within the chamber, and insoluble, labelled material within the suspended particles first increased, then decreased

Atlases for Select Portland Metropolitan Watersheds

The primary purpose of this project is to promote planning on a watershed basis in the Portland Metropolitan area. We intend to support Metro\u27s Regional Planning Framework process by encouraging a stewardship ethic based on watershed considerations. Atlases characterizing several of Portland\u27s watersheds will provide specific information to three audiences: planners, community activists, and decision makers. The atlases will provide an information base upon which watershed management processes can be built

Myocardial Ischemia and Reperfusion Leads to Transient CD8 Immune Deficiency and Accelerated Immunosenescence in CMV-Seropositive Patients

Rationale: There is mounting evidence of a higher incidence of coronary heart disease (CHD) in cytomegalovirus (CMV) seropositive individuals. Objective: The aim of this study was to investigate whether acute MI triggers an inflammatory T-cell response that might lead to accelerated immunosenescence in CMV-seropositive patients. Methods and Results: Thirty-four patients with acute MI undergoing primary PCI (PPCI) were longitudinally studied within 3 months following reperfusion (Cohort A). In addition, 54 patients with acute and chronic MI were analyzed in a cross-sectional study (Cohort B). CMV-seropositive patients demonstrated a greater fall in the concentration of terminally differentiated CD8 effector memory T cells (TEMRA) in peripheral blood during the first 30 min of reperfusion compared with CMV-seronegative patients (-192 vs. -63 cells/µl; p=0.008), correlating with the expression of programmed cell death-1 (PD-1) before PPCI (r=0.8; p=0.0002). A significant proportion of TEMRA cells remained depleted for at least 3 months in CMV-seropositive patients. Using high-throughput 13-parameter flow cytometry and HLA class I CMV-specific dextramers, we confirmed an acute and persistent depletion of terminally differentiated TEMRA and CMV-specific CD8+ cells in CMV-seropositive patients. Long-term reconstitution of the TEMRA pool in chronic CMV-seropositive post-MI patients was associated with signs of terminal differentiation including an increase in KLRG1 and shorter telomere length in CD8+ T cells (2225 bp vs. 3397 bp; p<0.001). Conclusions: Myocardial ischemia and reperfusion in CMV-seropositive patients undergoing PPCI leads to acute loss of antigen-specific, terminally differentiated CD8 T-cells, possibly through PD-1-dependent programmed cell death. Our results suggest that acute MI and reperfusion accelerate immunosenescence in CMV-seropositive patients

THE IMPACT OF GIVING CHILDREN WITH SPECIAL NEEDS A VOICE USING THE TEACHING GAMES FOR UNDERSTANDING MODEL IN PHYSICAL EDUCATION

The impact of the teaching games for understanding model (TGfU) in education has mainly focussed on mainstream children who have not been diagnosed with having an additional or specific educational need (SEN). The purpose of this study was to evaluate the impact of the TGfU model by focussing on the feedback of the children about their learning journey. The activity of Table Tennis was used as the teaching medium in which to enact this student’s voice and then the children reviewed their learning by completing a questionnaire after each lesson. The questionnaire was adapted from the previous research of Cervelló et al., (2007) who originally devised a twenty-four-point questionnaire which was shortened to twelve questions for the purpose of this study. The research problem was whether the TGfU model and its principles could be adopted and adapted after giving the SEN students a greater sense of ownership of their own learning. In total, twelve children aged 11-16 from one special school institution were involved in this study and they all had additional learning needs. After a comprehensive literature review, there have been very few research papers which have looked at this specific topic with only one article on this subject coming from Malaysia (Ibrahim, 2021). The findings of this study show that there was a positive change in the levels of communication and control over the learning, social interaction and activity levels as a result of using a models-based approach to learning physical education with SEN children.  Article visualizations

Chloride Effect in Fly Ash Geopolymer Cement

The production of ordinary portland cement (OPC) poses a significant impact on the world\u27s carbon dioxide emissions through the wide global use of concrete. Geopolymer cements (GPC) made from alkali activated fly ash can serve as a replacement to OPCs, reducing the carbon dioxide emissions by as much as 80%. GPCs exhibit adequate or superior mechanical performance to OPCs. The corrosion of carbon steel rebar in concrete occurs largely from chloride ion attack. The focus of this project will be to experimentally determine the coefficient of diffusion for chloride ions in GPCs and OPCs and compare to the corrosion performance of each to identify the mechanism of corrosion prevention in GPCs

An Investigation of Dietary Supplementation as a Potential Source of Nutrition Misinformation Hindering the Development of Healthy Eating Habits in the College Population

Current dietary supplement legislation allows nutrition misinformation to flourish; misleading structure‐function and health‐claims now abound on supplement labels. Meanwhile, college students tend to be open to experimentation and exploration. Hence, this study’s objective was to discover if students at USU are being influenced by such claims to unjustifiably take dietary supplements in a manner which hinders the development of healthy eating habits. During August of 2009, 1,300 USU freshmen were invited to voluntarily participate in an on‐line survey concerning dietary patterns which included a section about dietary supplementation. Five‐hundred‐and‐twelve completed the survey after providing informed written consent to participate. The majority of participants were 18‐years‐old and Caucasian. Thirty‐five percent of students reported taking at least one dietary supplement; the most common being a multivitamin. Popular reasons for supplementation included improved health and muscle augmentation. Also, 51% of supplement users reported family members as their source of supplement information. While no significant difference existed between the dietary patterns of supplement and non‐supplement users, the efficacy of supplementation practices was questionable. Ultimately, considering the circumstances of college life and the prevalence of dietary supplement use among college students, on‐campus nutritional professionals should be actively engaged in educating students about dietary supplements

Maria Varela’s Flickering Light: Literacy, Filmstrips, and the Work of Adult Literacy Education in the Civil Rights Movement

In this article, I take up the underrecognized and almost unstudied literacy work of Maria Varela, a Latinx Student Nonviolent Coordinating Committee (SNCC) staff member in charge of developing literacy materials for African Americans in the South during the 1960s. I analyze the use of community activism in the multimodal literacy materials that Varela and African Amer- ican communities collaboratively produced. These filmstrips played a critical role in those communities developing a new ethos of place: an imagined and embodied relationship between local and national communities that offers a new identity, sense of participatory agency, and place from which to speak