Integrating dark and light biohydrogen production strategies: towards the hydrogen economy

Biological methods of hydrogen production are preferable to chemical methods because of the possibility to use sunlight, CO2 and organic wastes as substrates for environmentally benign conversions, under moderate conditions. By combining different microorganisms with different capabilities, the individual strengths of each may be exploited and their weaknesses overcome. Mechanisms of bio-hydrogen production are described and strategies for their integration are discussed. Dual systems can be\ud divided broadly into wholly light-driven systems (with microalgae/cyanobacteria as the 1st stage) and partially light-driven systems (with a dark, fermentative initial reaction). Review and evaluation of published data suggests that the latter type of system holds greater promise for industrial application. This is because the calculated land area required for a wholly light-driven dual system would be too large for either centralised (macro-) or decentralised(micro-) energy generation. The potential contribution to the hydrogen economy of partially light-driven dual systems is overviewed alongside that of other biofuels such as bio-methane and bio-ethanol

The Benefits of Introducing Linguistics to High School Students

This presentation explores the lack of education provided by public secondary schools on the discipline of linguistics. In general linguistics studies human language and its various meanings, context, and forms. Some aspects that are specifically analyzed are: phonetics, morphology, and syntax. Most language learners subconsciously adapt and adhere to language rules, leading the discipline of linguistics seemingly unimportant to teach. However, in this presentation, I believe I will be able to examine several benefits of teaching secondary student\u27s linguistics. This presentation will analyze a case study of a high school linguistics class, reported by the Linguistic Society of America. This presentation will also depend upon scholarly journals as well to prove that linguistics is beneficial for students in two ways: improving education and creating a socially comfortable learning environment. By educating young students on linguistics, these students can use that knowledge to understand and value the diversity of language that occurs in secondary schools. This will aid in efforts against bullying of currently learning or non-English speaking students. Another valuable aspect of linguistics plays into student’s education. For example, most students are required to learn new languages at school— Spanish, French, German. Most students struggle with adapting to learn these languages because they are not taught the underlying rules of the language. Linguistics also can further push students understanding of literature, specifically when analyzing poetry. English is also another subject in school secondary students struggle with. Elements of linguistics I specified earlier include syntax and phonetics, which are tools that would aid student’s writing and understanding of difficult texts

A model for phenotype change in a stochastic framework

some species, an inducible secondary phenotype will develop some time after the environmental change that evokes it. Nishimura (2006) [4] showed how an individual organism should optimize the time it takes to respond to an environmental change ("waiting time''). If the optimal waiting time is considered to act over the population, there are implications for the expected value of the mean fitness in that population. A stochastic predator-prey model is proposed in which the prey have a fixed initial energy budget. Fitness is the product of survival probability and the energy remaining for non-defensive purposes. The model is placed in the stochastic domain by assuming that the waiting time in the population is a normally distributed random variable because of biological variance inherent in mounting the response. It is found that the value of the mean waiting time that maximises fitness depends linearly on the variance of the waiting time

Revisiting the Oregon Trail in Young Adult Fiction: Researching, Drafting, and Revising Grandpa Jesse\u27s Peculiar Request: an Oregon Trail Adventure

Grandpa Jesse\u27s peculiar request : an Oregon Trail adventure is a young adult road travel novel. The main character of this creative writing thesis is Erin Weston, a recent high school graduate who travels from Missouri to Portland, Oregon to visit her grandfather of his 80th birthday. Her grandfather encourages Erin to travel by car with her two best friends, Hailey and Midas, and to create a photo album as a present to him. Midas, a history and Oregon trail computer game enthusiast, convinces Erin to take the Oregon Trail route to Portland to see various landmarks such as Alcove Spring, Chimney Rock, Fort Laramie, and Soda Springs. The novel\u27s first six chapters chronicle the teenagers\u27 growth and introduce readers to Oregon Trail history. This carefully researched story uses first-person narration and in many ways mirrors the journey of the pioneers of the mid-1800s

Lucy Faulkner and the 'ghastly grin': Reworking the title page illustration to Goblin Market

An article that recovers the work of the craftswoman Lucy Faulkner Orrinsmith. It demonstrates her role in the re-cutting of the title page illustration to Christina Rossetti’s poem ‘Goblin Market’ designed by D. G. Rossetti in 1862-5

Preaching Wesley\u27s Ordo Salutis : a study in Wesleyan theology today

https://place.asburyseminary.edu/ecommonsatsdissertations/2080/thumbnail.jp