Freshwater Algae Bellinger, Edward G; Sigee, David C
2010, 2010-04-22
eBook
Freshwater Algae: Identification and Use as Bioindicatorsprovides a comprehensive guide to temperate freshwater algae, with additional information on key species in relation to environmental ...characteristics and implications for aquatic management. The book uniquely combines practical material on techniques and water quality management with basic algal taxonomy and the role of algae as bioindicators. Freshwater Algae: Identification and Use as Bioindicatorsis divided into two parts. Part I describes techniques for the sampling, measuring and observation of algae and then looks at the role of algae as bioindicators and the implications for aquatic management. Part II provides the identification of major genera and 250 important species. Well illustrated with numerous original illustrations and photographs, this reference work is essential reading for all practitioners and researchers concerned with assessing and managing the aquatic environment.
Abstract We systematically reviewed the peer-reviewed literature to determine a pooled estimate of the incidence of pseudotumor and acute lymphocytic vasculitis associated lesions (ALVAL) in adult ...patients with primary metal-on-metal (MoM) total hip arthroplasty or resurfacing. Fourteen eligible articles were identified, with a total of 13,898 MoM hips. The incidence of pseudotumor/ALVAL ranged from 0% to 6.5% of hips with a mean follow-up ranging from 1.7 to 12.3 years across the studies. The pooled estimated incidence of pseudotumor/ALVAL is 0.6% (95% CI: 0.3% to 1.2%). The rate of revision for any reason ranged from 0% to 14.3% of hips, with a pooled estimate of 3.9% (95% CI: 2.7% to 5.3%).
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
A solid perspective on the entire breadth of the field of computational drug design, including every major design technique in use today Explains how the drug design process varies for different ...types of targets. Compares and contrasts accuracy of available computational methods.
Low Voltage Electron Microscopy Bell, David C; Erdman, Natasha
2012, 2013., 2012., 2013, 2013-02-11T00:00:00, 2012-11-30
eBook
Part of theWiley-Royal Microscopical Society Series, this book discusses the rapidly developing cutting-edge field of low-voltage microscopy, a field that has only recently emerged due to the rapid ...developments in the electron optics design and image processing.It serves as a guide for current and new microscopists and materials scientists who are active in the field of nanotechnology, and presents applications in nanotechnology and research of surface-related phenomena, allowing researches to observe materials as never before.
Find out how Events Processing (EP) works and how it can work for youBusiness Event Processing: An Introduction and Strategy Guidethoroughly describes what EP is, how to use it, and how it relates to ...other popular information technology architectures such as Service Oriented Architecture.Explains how sense and response architectures are being applied with tremendous results to businesses throughout the world and shows businesses how they can get started implementing EPShows how to choose business event processing technology to suit your specific business needs and how to keep costs of adopting it downProvides practical guidance on how EP is best integrated into an overall IT strategy and how its architectural styles differ from more conventional approachesThis book reveals how to make the most advantageous use of event processing technology to develop real time actionable management information from the events flowing through your company's networks or resulting from your business activities. It explains to managers and executives what it means for a business enterprise to be event-driven, what business event processing technology is, and how to use it.
Halide perovskites have the potential to disrupt the photovoltaics market based on their high performance and low cost. However, the decomposition of perovskites under moisture, oxygen, and light ...raises concerns about service lifetime, especially because degradation mechanisms and the corresponding rate laws that fit the observed data have thus far eluded researchers. Here, we report a water-accelerated photooxidation mechanism dominating the degradation kinetics of archetypal perovskite CH3NH3PbI3 in air under >1% relative humidity at 25 °C. From this mechanism, we develop a kinetic model that quantitatively predicts the degradation rate as a function of temperature, ambient O2 and H2O levels, and illumination. Because water is a possible product of dry photooxidation, these results highlight the need for encapsulation schemes that rigorously block oxygen ingress, as product water may accumulate beneath the encapsulant and initiate the more rapid water-accelerated photooxidative decomposition.
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Issue addressed: High levels of testing are crucial for minimising the spread of COVID-19. The aim of this study is to investigate what prevents people from getting a COVID-19 test when they are ...experiencing respiratory symptoms.
Methods: Semi-structured, qualitative interviews were conducted with 14 purposively sampled adults between 20 November 2020 and 3 March 2021 in two capital cities of Australia and analysed thematically. The analysis included people who reported having respiratory symptoms but who did not undergo a COVID-19 test.
Results: Participants appraised risks of having COVID-19, of infecting others or being infected whilst attending a testing site. They often weighed these appraisals against practical considerations of knowing where and how to get tested, inconvenience or financial loss.
Conclusions: Clear public health messages communicating the importance of testing, even when symptoms are minor, may improve testing rates. Increasing the accessibility of testing centres, such as having them at transport hubs is important, as is providing adequate information about testing locations and queue lengths.
So what?: The findings of our study suggest that more needs to be done to encourage people to get tested for COVID-19, especially when symptoms are minor. Clear communication about the importance of testing, along with easily accessible testing clinics, and financial support for those concerned about financial impacts may improve testing rates.
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FSPLJ, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SAZU, SBCE, SBMB, UL, UM, UPUK
Comprehensive sexuality education (CSE), one of the key evidence-based strategies in our programmatic toolbox to address adolescent pregnancy and birth rates, remains a politically-charged issue ...countrywide. Though there is some funding available at the federal level, there are no national policies mandating the provision of sex education; as such, most decision-making occurs at the state or even the local level. Consequently, the provision of sex education and the quality and comprehensiveness of curricula used to do so are highly variable across the country, and are heavily influenced by the level of support or resistance in communities. This paper analyzes the experience of institutionalizing an evidence-based sex education in a large suburban school district in San Antonio, Texas, a socially conservative context. Understanding the politics of sex education is key to developing effective policies and strategies to ensure quality sex education programs are provided in public schools. However, there are no published papers documenting specific experiences with resistance to sex education in local communities in the USA. Given this, the strategies employed by opponents and the response by district officials can be informative for other school settings in the USA and around the world.
Abbreviations: AFLA: Adolescent Family Life Act; CHAMPSS: Choosing And Maintaining effective Programs for Sex education in Schools Model; CSE: Comprehensive sexuality education; DTL/RTL: Draw the Line/Respect the Line; HSAE: Human Sexuality and Abstinence Education, the middle school sex education curriculum in NEISD prior to 2008; NEISD: North East Independent School District; SAFA: San Antonio Family Association; SHAC: School health advisory council; STI: Sexually transmitted infection; TEC: Texas Education Code; TPIA: Texas Public Information Act; USA: United States of America; UTHSC: University of Texas Health Science Center
New treatment strategies for acute ischemic stroke must be evaluated in the context of effective reperfusion. Minocycline is a neuroprotective agent that inhibits proteolytic enzymes and therefore ...could potentially both inactivate the clot lysis effect and decrease the damaging effects of tissue-type plasminogen activator (t-PA). This study aimed to determine the effect of minocycline on t-PA clot lysis and t-PA-induced hemorrhage formation after ischemia.
Fibrinolytic and amidolytic activities of t-PA were investigated in vitro over a range of clinically relevant minocycline concentrations. A suture occlusion model of 3-hour temporary cerebral ischemia in rats treated with t-PA and 2 different minocycline regimens was used. Blood-brain barrier basal lamina components, matrix metalloproteinases (MMPs), hemorrhage formation, infarct size, edema, and behavior outcome were assessed.
Minocycline did not affect t-PA fibrinolysis. However, minocycline treatment at 3 mg/kg IV decreased total protein expression of both MMP-2 (P=0.0034) and MMP-9 (P=0.001 for 92 kDa and P=0.0084 for 87 kDa). It also decreased the incidence of hemorrhage (P=0.019), improved neurologic outcome (P=0.0001 for Bederson score and P=0.0391 for paw grasp test), and appeared to decrease mortality. MMP inhibition was associated with decreased degradation in collagen IV and laminin-alpha1 (P=0.0001).
Combination treatment with minocycline is beneficial in t-PA-treated animals and does not compromise clot lysis. These results also suggest that neurovascular protection by minocycline after stroke may involve direct protection of the blood-brain barrier during thrombolysis with t-PA.
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