Nonwoven glass fiber mat reinforces polyurethane adhesive

Nonwoven glass fiber mat reinforces the adhesive properties of a polyurethane adhesive that fastens hardware to exterior surfaces of aluminum tanks. The mat is embedded in the uncured adhesive. It ensures good control of the bond line and increases the peel strength

Evaluation of fibrous materials in a cryogenic structural adhesive Technical report, Feb. - Apr. 1966

Evaluation of fibrous materials in cryogenic structural polyurethane adhesive used for bonding Saturn S-IVB tank assembly attachment

Sustainable Urban Transformation and the Green Urban Economy

This chapter explores the connections between the concepts of sustainable urban transformation and the green urban economy, proposes a framework for understanding how these concepts “fit” together, and makes some practical suggestions for local governments (and national and international policy)

REPORT OF THE SUNFLOWER WORKING GROUP

Cultivated sunflower (Helianthus annuus) is grown in many temperate, semi-dry regions of the world, often in rotation with small grain cereals such as wheat. The largest areas of sunflower cultivation in the US are in the northern plains (North and South Dakota) and southern, high plains (western Nebraska and Kansas, plus areas of Colorado and Texas) where the growing season is often too dry and/or too short for profitable soybean and corn production. Most commercial sunflower is the oilseed type; in addition, the crop is grown for confectionery seed and is common as an ornamental in home gardens throughout the US. The US is the center of diversity of the ancestral species of cultivated sunflower (Heiser 1954). The crop is capable of hybridizing with its wild progenitor, wild H. annuus, but most crosses with other Helianthus species such as H. petiolaris are unsuccessful or yield infertile F1 progeny (Rieseberg et al. 1999). Cultivated sunflower also occurs as a volunteer weed. Although volunteer domesticated plants can represent a significant portion of the weeds infesting subsequent crops (Auwarter and Nalewaja 1976; Gillespie and Miller 1984), they do not persist for more than one or two years under most cropping systems and are not known to spread. For these reasons, the working group focused on the consequences of gene flow to wild H. annuus. Wild H. annuus is an outcrossing annual that occurs in disturbed sites and is widespread throughout much of the US, reaching its greatest abundance in midwestern states (Heiser 1954). Wild sunflower occurs at elevations ranging from sea level to 3,000 meters and in a variety of habitats that include roadsides, agricultural fields, abandoned fields, construction sites, and rangeland. Populations are typically patchy and ephemeral, relying on the soil seed bank and long-distance dispersal for opportunities to become established in available clearings. This species occurs as a common but manageable weed of wheat, cultivated sunflower, corn, soybean, sugarbeet, sorghum, safflower, and other crops (Al-Khatib et al. 1998; Geir et al. 1996; Irons and Burnside 1982; Schweitzer and Bridge 1982; Teo-Sherrell 1996). Pollen from cultivated sunflower is certain to spread to adjacent wild populations by the movements of foraging insects, especially bees. Commercial sunflower seed companies are required to have 1.6-2.4 km of isolation between hybrid seed production fields and wild sunflower and/or other cultivated sunflower to prevent contamination by “foreign” pollen (e.g., Smith 1978; Schneiter 1997). The extent of pollen movement from the crop to wild sunflowers is greatest at the crop edge, where up to 42% of seeds can be crop-wild hybrids, diminishing to nearly zero at distances of 800-1,000 m (Arias and Rieseberg 1995; Whitton et al. 1997). F1 crop-wild hybrids are fertile and capable of backcrossing with nearby wild plants, but they typically produce fewer flower heads per plant than purely wild genotypes (Snow et al. 1998). Once crop genes enter wild populations, they can spread farther by both pollen and seed dispersal. Seeds can be transported inadvertently by farm equipment and as contaminants of hay, manure, topsoil, and seed lots. Whitton et al. (1997) and Linder et al. (1998) have documented long-term persistence of crop genes in populations of wild sunflower

Rural-Urban Residence and Stroke Risk and Severity in Postmenopausal Women: The Women's Health Initiative

Background: The impact of rural-urban residence on stroke risk and poor stroke outcomes among postmenopausal women is unknown. Methods: We used data from the Women's Health Initiative (WHI) (1993-2014; n = 155,186) to test the hypothesis that women who live in rural compared with urban areas have higher stroke risk and worse stroke outcomes than urban women. We used rural-urban commuting area codes to categorize geocoded participant addresses into urban, large rural, or small rural areas. Incident strokes during follow-up were adjudicated by neurologists who used standardized criteria for reviewing brain imaging reports and other medical records and determining stroke subtype. Stroke functional recovery was measured with the Glasgow Stroke Outcomes Scale ascertained from the hospital record. We used univariable and multivariable-adjusted Cox proportional hazards models as well as logistic regression models to test whether rural-urban residence predicted stroke risk and odds of poor stroke outcome. Results: Among the 155,186 women in our cohort, 2.3% (n = 3514) had an incident stroke. We observed a modest reduction in risk of incident stroke among women who lived in urban (adjusted hazard ratio [aHR]: 0.86, confidence interval [95% CI]: 0.71-1.05) and large rural areas (aHR: 0.79, 95% CI: 0.60-1.04) compared with women who lived in small rural areas. In contrast, women who lived in urban compared with large rural areas had a similarly modest increased risk of stroke (aHR: 1.09, 95% CI: 0.89-1.32). Women who lived in urban compared with large rural areas were more likely to have poor stroke outcome (odds ratio [OR]: 1.41, 95% CI: 1.06-1.88), but the association was attenuated after adjustment for covariates (adjusted OR [aOR]: 1.27, 0.93-1.74). Conclusions: Future studies should confirm and examine the potential pathways of the reported associations among postmenopausal women

A quantified triple bottom line for tourism: experimental results

The tradition of tourism businesses and regional tourism industries is to measure their value to the host community by jobs, wages and tax revenues even though every member of that community is impacted on a daily basis though a broad variety of impacts. This paper demonstrates a conceptual approach for measuring the relative importance of the major dimensions of community quality of life that can be influenced by the tourism industry in order to calculate an indication of overall impact on the well being of community residents. Furthermore, we have formulated a conjoint model that values this overall performance in monetary units. A conjoint model for estimating importance is successfully implemented using samples of college students and tourism industry professionals in the US and Cyprus. A monetary version of Triple Bottom Line impacts is calculated for the impacts of a specific hypothetical tourism business development

Making a Step Forward Towards Urban Resilience. The Contribution of Digital Innovation

Starting from 'wicked problem' theory as the landmark for framing disaster events in terms of policy issue for city governments, this paper highlights the contribution provided by Big Data analytics and digital innovation in dealing with disaster risks. The research aims at answering the following question: what is the role that 'smart technologies' play in strengthening urban resilience to disaster risks

A Cytochrome P450 Conserved in Insects Is Involved in Cuticle Formation

The sequencing of numerous insect genomes has revealed dynamic changes in the number and identity of cytochrome P450 genes in different insects. In the evolutionary sense, the rapid birth and death of many P450 genes is observed, with only a small number of P450 genes showing orthology between insects with sequenced genomes. It is likely that these conserved P450s function in conserved pathways. In this study, we demonstrate the P450 gene, Cyp301a1, present in all insect genomes sequenced to date, affects the formation of the adult cuticle in Drosophila melanogaster. A Cyp301a1 piggyBac insertion mutant and RNAi of Cyp301a1 both show a similar cuticle malformation phenotype, which can be reduced by 20-hydroxyecdysone, suggesting that Cyp301a1 is an important gene involved in the formation of the adult cuticle and may be involved in ecdysone regulation in this tissue

Sustainable development and human resource management. A science mapping approach

Financiación ECO2017-82208-PThis manuscript presents a systematic review of "sustainable human resource man-agement"(HRM), highlighting its major themes and the evolution and tendenciesobserved in this field. It contributes to the development of this relatively new topic,offering a critical evaluation and identifying the highest impact research strands.The Web of Science database returned 111 documents spanning the period 1997-2018, and a conceptual science mapping analysis based on co-word bibliographic net-works was developed, using SciMAT as an analytical tool. The motor themes (welldeveloped and important for the structure of the discipline) in the field of sustainableHRM areenvironmental management,socially responsible HRM, andturnover.Employeeengagementis a specialised theme (well developed but less important for the struc-ture of the research field),human resource practicesis a basic or transversal theme(important for the discipline but not developed), andsustainable leadershipandenvi-ronmental performanceare emerging themes (both weakly developed and marginalto the field).Management and Marketing Department (University of Pablo de Olavide