197,559 research outputs found

    bibby n

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    bibbyB is for bibby, / A small outdoor kettle, / As black as the soot, / It has tin for its metal.A small outdoor kettlePRINTED ITEM DNE Sup[Add to DNE bibby n, to P-1957 quot, and our first in print]G. M. Story MAY 30 1988 WKUsed I and SupUsed I and SupUsed Su

    Data for thesis entitled 'Blue Biotechnology:exploring and exploiting the reactions of marine photosynthesis'

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    Supporting data accompanying thesis The dataset consists of 6 excel files, 5 with the prefix &#39;Appendix&#39; which form the ancillary data for Chapter 3. These include the read counts generated from the sequencing analysis, along with the results of the statistical analysis performed on them. The other file contains the raw physiological data used to create the graphs in Chapters 3,4 &amp; 5. This data does not require specialist software to access. The data was generated over the course of the DY111 CUSTARD cruise (2019) to the Southern Ocean and at the NOC Southampton between 2018-2022. The data contained in Chapter 5 was published as: Alejandro Torrado, Hannah M Connabeer, Annika R&ouml;ttig, Nicola Pratt, Alison J Baylay, Matthew J Terry, C Mark Moore, Thomas S Bibby, Directing cyanobacterial photosynthesis in a cytochrome c oxidase mutant using a heterologous electron sink, Plant Physiology, Volume 189, Issue 4, August 2022, Pages 2554&ndash;2566, https://doi.org/10.1093/plphys/kiac203</span

    Book review: 'Goth: undead subculture,' edited by Lauren M. E. Goodlad and Michael Bibby

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    Review of the book 'Goth: undead subculture,' edited by Lauren M. E. Goodlad and Michael Bibby, published by Duke University Press, Durham, 2007

    Photosynthetic apparatus of antenna-reaction centres supercomplexes in oxyphotobacteria: insight through significance of Pcb/IsiA proteins.

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    In this Review we give an overview of the structure and function of the membrane-bound photosynthetic antenna reaction centre complexes present in oxyphotobacteria. We summarise how variations in the organisation of these complexes have enabled oxyphotobacteria to exploit different ecological niches and discuss the evolutionary relationships of the IsiA/Pcb family of pigment-binding proteins.<br/

    Photophysiological and photosynthetic complex changes during iron starvation in Synechocystis sp. PCC 6803 and Synechococcus elongatus PCC 7942

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    Iron is an essential component in many protein complexes involved in photosynthesis, but environmental iron availability is often low as oxidized forms of iron are insoluble in water. To adjust to low environmental iron levels, cyanobacteria undergo numerous changes to balance their iron budget and mitigate the physiological effects of iron depletion. We investigated changes in key protein abundances and photophysiological parameters in the model cyanobacteria Synechococcus PCC 7942 and Synechocystis PCC 6803 over a 120 hour time course of iron deprivation. The iron stress induced protein (IsiA) accumulated to high levels within 48 h of the onset of iron deprivation, reaching a molar ratio of ~42 IsiA : Photosystem I in Synechococcus PCC 7942 and ~12 IsiA : Photosystem I in Synechocystis PCC 6803. Concomitantly the iron-rich complexes Cytochrome b6f and Photosystem I declined in abundance, leading to a decrease in the Photosystem I : Photosystem II ratio. Chlorophyll fluorescence analyses showed a drop in electron transport per Photosystem II in Synechococcus, but not in Synechocystis after iron depletion. We found no evidence that the accumulated IsiA contributes to light capture by Photosystem II complexes

    [CLOSED] Contributions to zeolite chemistry

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    This submission for the degree of DSc presents work published by Dr David Michael Bibby. a graduate of Loughborough University of Technology. during the past 25 years. The primary part of the submission presents publications in which Dr Bibby has contributed to the field of Zeolite Chemistry. Some secondary publications in other fields are discussed briefly for the sake of completeness and cover a range of topiCS including nuclear chemiStry. the geochemistry of diamond. energy. and environmental chemistry. Parts I to N of the submission present introductory and background material about the candidate (sections 1 to 4); the research field (section 5); the primary material submitted (sections 6 to 11); and the secondary material (sections 12 to 15). Part V of the submission comprises the full text of the primary publications. except for publication 62. conference proceedings of which Dr Bibby was an editor

    The Physical and Mechanical Aspects of Orthodontic Appliances

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    Magister Scientiae Dentium - MSc(Dent)These laws were first published in Latin,in 1687.The first law may be literally translated thus, Every body continues in its state of reat or of uniform motion in a straight line ,unless it is compelled to change that state by impressed force. This meano that if a body is at rest it will remain so unless some force acts on it,if in motion ,the velocity of motion must continue uniform unless some force acts to increase it or diminish it. Also the direction of motioA mast continue unchanged and therefom rectilinear unless some force causes it to be diverted. This law therefore supplies us with a definition of force; Force is that which produces or tends to produce, motion 0.' change of motion. Newton's second law of motion may be translated as follows:- Newton's second law of motion may be translated as follows:- The change of motion (produced)is proportional to the impressed force producing it,and pursues the direction in which that force is impressed. This law leads to a method of measuring forces. If we change the velocity with which a mass is moving,we also change its momentum. Change in momentum will serve to measure force.lt seems obvious that whatever change in momentum is produced by a force, twice the force will produce twice the change ,etc.i.e. the change is directly proportional to the force. For a given mass,m,change of momentum ,mv,means change of velocity;the change of velocity per unit time is aceeleration,a;the change in momentum per unit time is therefore malf we employ absolute units (poundals or dynes)this can be shown as; Newton's third law of motion states that 'to every action there is an equaI and opposite reaction'.This law recognises the dual aspect of forces It a tooth is pushed by a finger spring ,the spring is also pushed by the tooth,and an eqpal counter force acts towards the spring unti1 the biology of the system intervenes. This dual stress is called pressure. Retracting incisors against posterior segments it is apparent that the reaction of the posterior segments must be equal and opposite to the incisors.In this case the two forces act away trom each other,and tG this dual stress we give the name tension

    [CLOSED] Contributions to zeolite chemistry

    No full text
    This submission for the degree of DSc presents work published by Dr David Michael Bibby. a graduate of Loughborough University of Technology. during the past 25 years. The primary part of the submission presents publications in which Dr Bibby has contributed to the field of Zeolite Chemistry. Some secondary publications in other fields are discussed briefly for the sake of completeness and cover a range of topiCS including nuclear chemiStry. the geochemistry of diamond. energy. and environmental chemistry. Parts I to N of the submission present introductory and background material about the candidate (sections 1 to 4); the research field (section 5); the primary material submitted (sections 6 to 11); and the secondary material (sections 12 to 15). Part V of the submission comprises the full text of the primary publications. except for publication 62. conference proceedings of which Dr Bibby was an editor

    The Physical and Mechanical Aspects of Orthodontic Appliances

    No full text
    Magister Scientiae Dentium - MSc(Dent)These laws were first published in Latin,in 1687.The first law may be literally translated thus, Every body continues in its state of reat or of uniform motion in a straight line ,unless it is compelled to change that state by impressed force. This meano that if a body is at rest it will remain so unless some force acts on it,if in motion ,the velocity of motion must continue uniform unless some force acts to increase it or diminish it. Also the direction of motioA mast continue unchanged and therefom rectilinear unless some force causes it to be diverted. This law therefore supplies us with a definition of force; Force is that which produces or tends to produce, motion 0.' change of motion. Newton's second law of motion may be translated as follows:- Newton's second law of motion may be translated as follows:- The change of motion (produced)is proportional to the impressed force producing it,and pursues the direction in which that force is impressed. This law leads to a method of measuring forces. If we change the velocity with which a mass is moving,we also change its momentum. Change in momentum will serve to measure force.lt seems obvious that whatever change in momentum is produced by a force, twice the force will produce twice the change ,etc.i.e. the change is directly proportional to the force. For a given mass,m,change of momentum ,mv,means change of velocity;the change of velocity per unit time is aceeleration,a;the change in momentum per unit time is therefore malf we employ absolute units (poundals or dynes)this can be shown as; Newton's third law of motion states that 'to every action there is an equaI and opposite reaction'.This law recognises the dual aspect of forces It a tooth is pushed by a finger spring ,the spring is also pushed by the tooth,and an eqpal counter force acts towards the spring unti1 the biology of the system intervenes. This dual stress is called pressure. Retracting incisors against posterior segments it is apparent that the reaction of the posterior segments must be equal and opposite to the incisors.In this case the two forces act away trom each other,and tG this dual stress we give the name tension

    Silicate: nitrate ratios of upwelled waters control the phytoplankton community sustained by mesoscale eddies in sub-tropical North Atlantic and Pacific

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    Mesoscale eddies in sub-tropical gyres physically perturb the water column and can introduce macronutrients to the euphotic zone, stimulating a biological response in which phytoplankton communities can become dominated by large phytoplankton. Mesoscale eddies may therefore be important in driving export in oligotrophic regions of the modern ocean. However, the character and magnitude of the biological response sustained by eddies is variable. Here we present data from mesoscale eddies in the Sargasso Sea (Atlantic) and the waters off Hawai'i (Pacific), alongside mesoscale events that affected the Bermuda Atlantic Time-Series Study (BATS) over the past decade. From this analysis, we suggest that the phytoplankton community structure sustained by mesoscale eddies is predetermined by the relative abundance of silicate over nitrate (Si*) in the upwelled waters. We present data that demonstrate that mode-water eddies (MWE) in the Sargasso Sea upwell locally formed waters with relatively high Si* to the euphotic zone, and that cyclonic eddies in the Sargasso Sea introduce waters with relatively low Si*, a signature that originated in the iron-limited Southern Ocean. We propose that this phenomenon can explain the observed dominance of the phytoplankton community by large-diatom species in MWE and by small prokaryotic phytoplankton in cyclonic features. In contrast to the Atlantic, North Pacific Intermediate Water (NPIW) with high Si* may influence the cyclonic eddies in waters off Hawai'i, which also appear capable of sustaining diatom populations. These observations suggest that the structure of phytoplankton communities sustained by eddies may be related to the chemical composition of the upwelled waters in addition to the physical nature of the eddy.<br/
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