62 research outputs found
The Fables of Moronia
No full textSee my comments on the hardbound edition.Signed by the authorHerbert C. Holdridg
The Fables of Moronia
No full textOne of the weirdest books I own. Heavily political fables directed at the stupidity of U.S. policies. There is nothing really Aesopic here in the content. The prose is a mishmash of cliche, biblical image, King James prose, and who knows what else! Note that the author published his own book. I have tried reading it twice. Good luck!This is a hardbound book (hard cover)This book has a dust jacket (book cover)Signed by the authorHerbert C. Holdridg
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Health Based Criteria for Use in Managing Airport and Aircraft Noise
No full textThis thesis questions whether an exposure-dose relationship between measurable aircraft sound and health can be established. The significance of this research is that highly concentrated global populations live near airports and are receiving a dangerous unknown and undefined health exposure. The question addressed is if aircraft sound originating from various heights has enough energy left upon reaching the ground to create measurable vibrations in human tissue. Simulated body tissue was isolated from the internal walls of a mock-up structure to make this determination. Vibration and sound data were collected near the Phoenix Arizona airport from over 60 aircraft as they passed overhead at heights varying up to two-miles above the ground.
The measurements demonstrated that the open air significantly attenuates most aircraft sound frequencies before they reach the ground. The experimental measurements were compared and contrasted to a non-health based sound criteria used by the Federal Aviation Authority (FAA) to determine variances against presently defined acceptable human impact. It was determined that most of the aircraft produced sound is not within the FAA criteria and that the portion that isn’t included causes harmful health effects. The frequencies that are the most significant component of aircraft sound energy are low frequency (200 Hz and less) and infrasound (20 Hz and less).
Experimentation demonstrated that aircraft produced infrasound and low frequency sound can travel almost a mile with minimal attenuation and are not blocked by common construction material. These sounds readily pass through and into common dwellings. Within the frequency range of about 5-40 Hz, similar amplitude/intensity infrasound and low frequency sound is being produced by each aircraft from approximately 4000 feet elevation and lower. This observation was generalized along the flight path of ascending aircraft from takeoff and allowed a description of a singular value of infrasound vibrational exposure beginning at the end of the runway to approximately five miles from the airport. Sound emanates out from either side of the aircraft and experimental data suggests a full exposure band of approximately one and a half miles wide. Partial reduced vibration exposures occur outside of the primary exposure band.
Low frequencies less than 40 Hz were measured in the experiment’s simulated human tissue and this exposure range poses health concerns. These vibrations match natural human body frequencies leading to human cell damage and the thickening of tissue (Alves-Pereira, 2007). A serious health issue caused by this vibration is increased cardiovascular risk, which has been identified near several airports throughout the world (Correia, 2013). This research strongly suggests that human tissue damage can occur from each flight event.
NextGen navigation is the future of aviation and its implementation poses a special additional health risk in that its application intentionally concentrates aircraft flight into tight corridors. This practice increases the number of exposures and conversely the health risk for those directly beneath the flight paths. When the flight path is over densely populated communities, a significant increased cardiovascular health risk for those exposed can be expected. This thesis did not determine a dose-thresh hold health relationship to over flights. This is an important suggested area for future research.Aircraft Noise
health
Infrasound
Low Frequency Sound
Cardiovascular
FAA
DNL 6
Globally convergent algorithms for dc operating point analysis of nonlinear circuits
No full textAn important objective in the analysis of an electronic circuit is to find its quiescent or DC operating point. This is the starting point for performing other types of circuit analysis. The most common method for finding the DC operating point of a nonlinear electronic circuit is the Newton-Raphson method (NR), a gradient search technique. There are known convergence issues with this method. NR is sensitive to starting conditions. Hence, it is not globally convergent and can diverge or oscillate between solutions. Furthermore, NR can only find one solution of a set of equations at a time. This paper discusses and evaluates a new approach to DC operating point analysis based on evolutionary computing. Evolutionary algorithms are globally convergent and can find multiple solutions to a problem by using a parallel search. At the operating point(s) of a circuit, the equations describing the current at each node are consistent and the overall error has a minimum value. Therefore, we can use an evolutionary algorithm to search the solution space to find these minima. We discuss the development of an analysis tool based on this approach. The principles of computer-aided circuit analysis are briefly discussed, together with the Newton-Raphson method and some of its variants. Various evolutionary algorithms are described. Several such algorithms have been implemented in a full circuit analysis tool. The performance and accuracy of the evolutionary algorithms are compared with each other and with NR. Evolutionary algorithms are shown to be robust and to have an accuracy comparable to that of NR. The performance is, at best, two-orders of magnitude worse than NR, although it should be noted that time-consuming setting of initial conditions is avoided
Re-structure : an exploration of relational engagement through objects & object making
No full textHome is a loaded concept. For each of us it means a vast spectrum of associations, emotions and values. However, there are also a myriad of universal commonalities of what home is in our collective imaginations and experiences despite the increasingly transitory and elusive ideas about what home means for each of us. Whatever or wherever we might call home, our experiences within the walls of what we understand to be home impact and shape us. It is the physical and sociological structure that shapes our lives and the shelter from which we depart to grow into the larger world surrounding it.
This body of work is an exploration of the construct of ‘home’ as both material and immaterial structure of relationships and objects. Through various approaches to projects across mediums and forms, I have sought to align my process of making with my own developing definition of home and of the domestic through means of connection, collaboration adn community. At the heart of these is a dependence and value of relationships. In exploring relational structures and objects that mediate them through the process of making, I have deepened my belief that relationships are at the core of who we are and how we choose to design our lives. With this in mind, my aim has been to investigate our relationship to objects, our relationship to the making of objects, and our relationship to others, their narratives and histories. Of the utmost import in driving these themes has been a desire to create objects that arise from personal and meaningful places that go further to become structures of support for the life and development of new narratives
Rehabilitation / treatments of sports injuries
No full textThis was a conference powerpoint presentation for Nurse Practitioners A&E, Practice nurses and relevant staff in Sussex trusts about Minor injury care. This gives an overview of possible treatments and not an in depth lecture
Species diversity and emergence patterns of nematocerous flies (Insecta: Diptera) from three coastal salt marshes in prince Edward Island, Canada
No full textEmerging insects were monitored every 10 days between early May and late August 1993, from tidal pools in three coastal salt marshes on Prince Edward Island, Canada. The salt marsh pools ranged from about 1 m(2) to > 1,000 m(2) in surface area, and had salinities ranging from 11-27parts per thousand. Water temperatures through die study period ranged from 4-46degreesC. Most of the emerging insects were flies (Diptera; 85%), and two-thirds of these were in the sub-Order Nematocera, mainly Chironomidae, Ceratopogonidae, and Culicidae. Forty-three species of Nematocera were identified, although most of these were rare occurrences, and twelve of the species are undescribed. No consistent relationships were found between abundance or diversity and pool size or marsh for Nematocera species overall, although some species showed a statistical preference for a particular marsh or pool size. Emergence patterns were consistent between marshes for species found in different marshes, but overall patterns were highly variable, depending upon species.PT: J; CR: ADAM P, 1990, SALTMARSH ECOLOGY ALEXANDER CP, 1981, MANUAL NEARCTIC DIPT, V27, P153 ASHE P, 1990, CATALOGUE PALAEARCTI, V2, P113 BICKLEY WE, 1975, MISCELLANEOUS PUBLIC, V870 BLANDER M, 1979, ADV COLLOID INTERFAC, V10, P1 BORKENT A, COMMUNICATION BROMLEY JEC, 1979, P NOVA SCOTIA I SCI, V29, P411 BRUNDIN L, 1947, ARK ZOOL, V39, P1 CAMERON GN, 1972, ECOLOGY, V53, P58 CAMMEN LM, 1976, AM MIDL NAT, V96, P487 CAMPBELL BC, 1978, ECOLOGICAL ENTOMOLOG, V3, P181 CANNINGS RA, 1978, CAN J ZOOL, V56, P1144 COLBO MH, 1996, HYDROBIOLOGIA, V318, P117 CRANSTON PS, 1988, CAN ENTOMOL, V120, P425 CRANSTON PS, 1989, ENT SCAND S, V34, P165 DAIBER FC, 1977, WET COASTAL ECOSYSTE, P79 DAVIS LV, 1966, ECOL MONOGR, V36, P275 DOWNES JA, 1981, AGR CANADA RES BR MO, V27, P393 EPLER JH, 1987, EVOLUTIONARY MONOGR, V9, P1 EPLER JH, 1988, SPIXIANA S, V14, P105 GERRY BI, 1954, MOSQ NEWS, V14, P145 GIBERSON DJ, 1995, IMPACT BTI TREATMENT GLOOSCHENKO WA, 1988, ECOLOGICAL LAND CLAS, V24, P348 HILSENHOFF WL, 1966, ANN ENTOMOL SOC AM, V59, P465 HIRVENOJA M, 1973, ANN ZOOL FENN, V10, P1 KNEIB RT, 1984, ESTUARIES, V7, P392 LASALLE MW, 1987, ESTUARIES, V10, P303 LASALLE MW, 1991, WETLANDS, V11, P191 LONG SP, 1983, SALTMARSH ECOLOGY MENZIE CA, 1980, ESTUARIES, V3, P38 MENZIE CA, 1981, LIMNOL OCEANOGR, V26, P467 NOLTE U, 1995, CHIRONOMIDS GENES EC, P177 OLIVER DR, 1990, PUBLICATION AGR CA B, V1857 RADER DN, 1984, ESTUARIES, V7, P413 RASMUSSEN JB, 1984, HYDROBIOLOGIA, V119, P65 REIMOLD RJ, 1977, WET COASTAL ECOSYSTE, P157 REISS F, 1971, ARCH HYDROBIOL S, V40, P75 REISS F, 1980, CHIRONOMIDAE ECOLOGY, P145 REISS F, 1981, ENT SCAND S, V15, P73 REY JR, 1986, FLORIDA ENTOMOLOGIST, V60, P197 ROBERT LL, 1984, ENVIRON ENTOMOL, V13, P1097 ROBERTS BA, 1986, CAN J BOT, V64, P455 SAETHER OA, 1969, B FISH RES BD CAN, V170, P1 SAETHER OA, 1975, CAN ENTOMOL, V107, P1029 SARDA R, 1995, MAR BIOL, V121, P431 SPIES M, 1996, SPIXIANA S, V22, P61 THIENEMANN A, 1954, CHIRONOMUS LEBEN VER TIMMS BV, 1986, INT REV GES HYDROBIO, V71, P759 TUISKUNEN J, 1986, ANN ZOOL FENN, V23, P361 VERNBERG FJ, 1993, ENVIRON TOXICOL CHEM, V12, P2167 WALL WJ, 1973, ENVIRON ENTOMOL, V2, P681 WANG X, 1993, ENTOMOL SCAND, V24, P215 WARD G, 1983, CAN J ZOOL, V61, P1071 WAUGH WT, 1976, ANN ENTOMOL SOC AM, V69, P219 WELLS ED, 1988, ECOLOGICAL LAND CLAS, V24, P251 WENNER EL, 1988, ESTUARIES, V11, P29 WIRTH WW, 1994, INSECTA MUNDI, V8, P17 WOOD DM, 1979, MOSQUITOES CANADA 6; NR: 58; TC: 4; J9: ESTUARIES; PG: 13; GA: 524XJSource type: Electronic(1
Seasonal frequency and positioning of parasitic midges (Chironomidae) on Pteronarcys biloba nymphs (Plecoptera: Pteronarcyidae)
No full textMature nymphs of Pteronarcys biloba collected from Catamaran Brook, New Brunswick, between October 1994 and October 1995, were hosts to high numbers of parasitic chironomid larvae [Nanocladius (Plecopteracoluthus) undescribed sp., nr, branchicolus]. Nanocladius (P.) sp. has a univoltine life cycle in Catamaran Brook, with emergence occurring nearly simultaneously with the stonefly host in late May and early June. The chironomid larva constructs a silken case on the stonefly nymphs and feeds on hemolymph by piercing the gill tissue or the intersegmental membranes. Stoneflies were collected from different habitat types in 4 stream reaches from the headwaters to the mouth, and the position and number of attached chironomids was recorded for each nymph. The frequency and density of parasitic chironomids was not related to habitat type, but was related to reach; significantly more larvae/host were found in mid-catchment reaches than at the headwaters or mouth (p < 0.05). No parasitized stoneflies were found in the headwater reach, but between 80 and 100% of mature stonefly nymphs collected from the mid-catchment and mouth reaches were parasitized. Mean chironomid densities ((x) over bar +/- SE) were 6.7 +/- 0.4 chironomids/mature host in the fail of 1994 and 3.5 +/- 0.44 in the summer and fall of 1995. Both frequency and density of chironomids were highest on the oldest stonefly age class present; younger stoneflies were also parasitized, but at significantly lower levels. Larval positioning on stoneflies differed with age of larvae; early instar chironomids attached mainly to the thoracic pleura, just under the wingpads, but most migrated to femora by early fall (September), and overwintered on the femora.PT: J; CR: BENEDICT PR, 1972, ANN ENTOMOL SOC AM, V65, P109 BOTTORFF RL, 1987, ENTOMOL GEN, V12, P97 CLAASEN PW, 1931, PLECOPTERA NYMPHS N CORBET PS, 1961, B ENTOMOL RES, V52, P695 CUNJAK RA, 1990, CANADIAN TECHNICAL R, V1751 CUNJAK RA, 1993, CANADIAN TECHNICAL R, V1914 DELAROSA CL, 1992, J N AMER BENTHOL SOC, V11, P316 DELATORREBUENO JR, 1978, GLOSSARY ENTOMOLOGY DOSDALL LM, 1981, CAN ENTOMOL, V113, P141 DOSDALL LM, 1986, CAN ENTOMOL, V118, P511 EPLER JH, 1995, J N AMER BENTHOL SOC, V14, P50 GOTCEITAS V, 1986, CAN J ZOOL, V58, P2260 HILSENHOFF WL, 1968, ANN ENTOMOL SOC AM, V61, P1622 HITCHCOCK SW, 1974, B STATE GEOLOGICAL 7, V107 JACOBSEN RE, 1993, CURRENT DIRECTIONS R, P317 SMITH LW, 1917, T ENTOMOLOGICAL SOC, V43, P433 STEFFAN AW, 1965, CAN ENTOMOL, V97, P1323 STEFFAN AW, 1967, NATURE, V213, P846 STEFFAN AW, 1967, SYMBIOSIS, V2, P207 STEWART KW, 1993, NYMPHS N AM STONEFLY SVENSSON B, 1976, ARCH HYDROBIOL, V77, P22 WHITE TR, 1980, ENTOMOL NEWS, V91, P69; NR: 22; TC: 7; J9: J N AMER BENTHOL SOC; PG: 8; GA: WC658Source type: Electronic(1
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