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1
Ghaem, Hamid. "Contribution à l'étude de matériaux de synchronisation." Paris 6, 1994. http://www.theses.fr/1994PA066812.
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Wixted, Shaun P. "A Carrier-Pigeon UAS for South Pole Data Transfer." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/2033.
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The assessment of feasibility of an Unmanned Aircraft System (UAS) that is specifically tailored—in performance, operating and support characteristics, and payload—to support hardware-based data transfer from South Pole Station in Antarctica to a location of high connectivity has been undertaken. Due to the specific location of the Amundsen-Scott South Pole station and competing demands from other governmental agencies, satellite connectivity requirements for data transfers cannot be met at the South Pole. In the recent decades, the advancement in UAS capabilities have overwhelming extended their operational reach in military and commercial reconnaissance and surveillance missions. This UAS has the potential to supplement research data transfer in environments – such as the South Pole – where communications are extremely limited. The methodology used to determine feasibility of the Carrier Pigeon UAS are; trade studies for similar UAS, hand calculations, initial constant diagrams, and assessment of command, control, and support. The outputs determined the proposed system is feasible to meet personnel, climate, altitude, range, and payload requirements of a continuous “Carrier-Pigeon” UAS that enables high volumes of rapid data via hard disk drive transfer from the Amundsen-Scott South Pole Station to Christchurch, New Zealand.
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Migalski, Szymon P. "A novel method for investigating magnetoreception in the homing pigeon." Thesis, Cardiff University, 2010. http://orca.cf.ac.uk/54117/.
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Recent studies have indicated that avian magnetoreception is based on vision, being both wavelength and luminance sensitive. Using this novel behavioural assay, the ability to respond to changes in magnetic field conditions was tested in the dark and the light. Darkness was found to have an adverse impact on birds' abilities to perceive magnetic field changes. Magnetoreception as measured by reactivity was virtually eliminated in the dark as compared with the same birds' behaviour in normal light conditions.
4
Banks, Alexander N. "The implications of sociality for navigation in the homing pigeon." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393363.
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Waldie, Gwenith A. "Development of pigeon feed for commercial squab production in British Columbia." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26099.
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Two experiments were conducted to evaluate the protein and energy requirements of squabbing pigeons. The first experiment was carried out at a commercial farm, with birds housed in pens, each containing 10-12 pairs. Two pelleted feeds of different protein concentrations (low protein (LP) with 16% CP and 2937 kcal ME/kg, and high protein (HP) with 22% CP and 2783 kcal ME/kg) were fed, with and without whole yellow corn, cafeteria-style. A low protein intake was observed with LP + corn, which adversely affected squab growth and livability, without affecting egg production traits or adult body weight. HP without corn resulted in a high protein intake with no effect on squab production. The other two treatments (HP + corn and LP) had intermediate protein intake while squab production was unaffected. It was concluded that the cafeteria feeding program (HP + corn) may be replaced by a single pelleted ration, such as LP, without adversely affecting squab production.
The second experiment was carried out at the new UBC Pigeon Nutrition Unit, to determine the requirement for, and utilization of, different fat sources by pigeons. Birds were housed in pair-cages and fed one
of 5 pelleted rations, with 35 pairs per treatment.
The treatments consisted of a basal diet (with no added
fat , 15% crude protein and 2650 kcal ME/kg) to which
was added either sunflower oil (SFO) or animal tallow
(AT) at levels of 3% or 6%. Birds fed the basal diet
produced no squabs, whereas those on other treatments
produced at least 6 squabs. Intake data from the first
seven weeks of the trial indicated that pigeons eat to
meet an energy requirement of approximately 235 kcal HE
per pair per week when not producing squabs. Energy
intake of those adults raising squabs vas highly
variable and did not appear to correlate with squab
production. The source of fat did not significantly
affect squab production.Land and Food Systems, Faculty of
Graduate
6
Fenemore, Anna Trudy Elizabeth. "The Pigeon project : a study of the potential for embodied praxis in performance spectating." Thesis, Manchester Metropolitan University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.392839.
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Theriault, Jolan. "Work loop dynamics of the pigeon (Columba livia) humerotriceps and its potential role for active wing morphing." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/63026.
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Avian wings change shape during the flapping cycle due to the activity of a network of intrinsic wing muscles. Wing control is believed to be the key feature allowing birds to maneuver safely through different environments. One control aspect is elbow joint motion, which relates to wing folding for the upstroke and re-expansion for the downstroke. Muscle anatomy suggests that if the muscles are actuating then the biceps flex the elbow, and the two heads of the triceps, the humerotriceps and scapulotriceps, extend the elbow. This set of antagonist muscles could thus actively modulate wing shape by regulating elbow joint angle. Control of the elbow joint angle remains uncertain as motor elements can have diverse functions such as actuators, brakes, springs, and struts, where specific roles and their magnitudes depend on when muscles are activated in the contractile cycle. The wing muscles best studied during flight are the elbow muscles of the pigeon (Columba livia). In vivo studies during different flight modes revealed variation in strain profile, activation timing and duration, and in contractile cycle frequency of the humerotriceps. This variation suggests that the pigeon humerotriceps may alter wing shape in diverse ways. To test this hypothesis, I developed an in situ work loop technique to measure the performance of the pigeon humerotriceps. My experiments tested how activation duration and contractile cycle frequency influenced muscle work and power across the full range of activation onset times. I found that the humerotriceps generated net positive power over a narrow range of activation times. The humerotriceps produced predominantly net negative power, likely due to relatively long activation durations, indicating that it absorbs work, but the work loop shapes also suggest varying degrees of elasticity and resistance. I was unable to examine the effects of variation in strain profile because current work loop technology does not allow for this. Nonetheless, these results, when combined with previous in vivo studies, show that the humerotriceps can dynamically shift among roles of brake, spring, and strut, based on activation properties that vary with flight mode.Science, Faculty of
Zoology, Department of
Graduate
8
Reid, Sheri Lynn. "Search for hidden objects by pigeons: Place learning vs "object permanence"." Thesis, University of Ottawa (Canada), 1996. http://hdl.handle.net/10393/9707.
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Mental representation of hidden objects by pigeons was tested for. Experiment 1 used a series of Piagetian tests of "object permanence" to measure pigeons' capacity to find a stationary food target behind a screen. Performance on these tests did not differ significantly from chance in spite of manipulations designed to enhance the motivational value of the hidden object. Experiment 2 used operant contingencies to test whether pigeons could mentally represent a moving dot on a computer monitor that temporarily "disappeared" behind a screen. Two target durations were used (12 and 24 seconds) for the dot to move across a computer screen. Pigeons were reinforced if their first keypeck occurred when the dot was hidden but not if it occurred when the dot was visible. Phase 1 consisted of target-12 trials, phase 2 consisted of target-24 trials, and phase 3 consisted of alternating sessions of target-12 and target-24 trials. Results demonstrate that while pigeons were able to use timing strategies to respond correctly with an unconstrained choice method, evidence for the use of mental representations by pigeons was inconclusive. Both experiments are discussed in terms of the mechanisms used by pigeons to find hidden objects.
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Hope, Chris. "Errors in pigeons' memory for number, effects of ITI and DI illumination." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ65198.pdf.
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Coyle, James W. "Animal memory processes for number and time, pigeons, methamphetamine, and the internal clock model." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq21876.pdf.
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Garcia, Sanchez Yaiza. "Analysis of retinal image quality for peripheral vision in humans and pigeons (Columba livia)." Thesis, Cardiff University, 2012. http://orca.cf.ac.uk/41966/.
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Retinal image quality for peripheral as well as central visual field locations has been investigated in humans and an animal model (Columba livia) with wide- angle, panoramic vision because of its laterally oriented eyes. The goal was to determine whether the retinal image is maintained at a higher quality away from the fovea in pigeons as compared to humans. In this thesis, the HSWFS (Hart- mann Shack Wavefront Sensor) has been implemented with the correspondent validation and application for measuring ocular aberrations in the human and avian eye.
Using a modified HSWFS, the refractive error and total amount of ocular aberra- tions were measured for 20 pigeons along the horizontal meridian and for another 8 pigeons in the vertical meridian at three positions along the horizontal meridian. The HOA( High order aberrations) of 10 humans were measured at peripheral locations (±35 ◦) in the upper visual field and along the horizontal meridian. The anaesthetized animal’s head position was controlled by a stereotaxic head holder capable of horizontal and vertical rotation. Measured eccentricities were(±60◦) from the fovea in the horizontal meridian and +35 ◦ and -25 ◦ along each of the three vertical meridians. In pigeons, the LOA (astigmatism) on the horizontal meridian increase slightly from the center towards the far periphery but are relatively constant for ±20◦ around the fovea, whereas defocus remains almost constant. Vertical meridian measurements are consistent with the previously reported myopia in the lower visual field. Compared with measurements in human subjects, the overall values of RMS are much lower in the pigeon at all corresponding eccentricities. Off-axis vision is generally dominated by defocus and astigmatism. In pigeons, however, defocus along the horizontal meridian does not change dramatically whereas, along the vertical meridian, the presence of a lower field myopia is confirmed. Astigmatism of the eye for increasing eccentricity (horizontally and vertically) is consistently lower then expected theoretically and when compared with humans. This demonstrates that the visual optics of the pigeon are more fully corrected for peripheral vision than in humans.
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Enders, Dirk [Verfasser], Iris [Akademischer Betreuer] [Gutachter] Pigeot-Kübler, and Til [Gutachter] Stürmer. "Designs and analytical strategies to control for unmeasured confounding in studies based on administrative health care databases / Dirk Enders ; Gutachter: Iris Pigeot-Kübler, Til Stürmer ; Betreuer: Iris Pigeot-Kübler." Bremen : Staats- und Universitätsbibliothek Bremen, 2017. http://d-nb.info/1137608528/34.
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Le, Roux Marga. "Preparation and evaluation of doxycycline hydrochloride and bromhexine hydrochloride dosage forms for pigeons / Marga le Roux." Thesis, North-West University, 2004. http://hdl.handle.net/10394/580.
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Objective: To prepare and evaluate three different dosage forms, containing
doxycycline hydrochloride (HCI) and bromhexine hydrochloride (HCI) respectively
and in combination, for the treatment of respiratory diseases in pigeons.
Background: Birds have held a place in man's affection since the ancient Egyptians
and Romans kept birds. Europeans have successfully bred birds, especially smaller
birds and pigeons, for centuries. Only in recent years, however, have science and
medicine been applied to aviculture and pet care. Pigeon racing is one of the sports
not well known to the general public. These sportsmen invest a great deal to ensure
that their pigeons are disease free. During racing they are exposed to infectious
agents in the racing baskets and bring these pathogens back to the racing flock. If
you ask any experienced flier what health problem he fears most for his pigeons
during the racing season, he will probably say respiratory infection. Respiratory
diseases are very common in pigeons. They are the major cause of poor
performance and pigeon loss during the racing season. Doxycyline HCI, a broad-spectrum
antibiotic, is the world-wide veterinary therapeutic agent of choice for the
treatment of Chlamydia, a principle cause of respiratory infection. Doxycyline HCI
has several advantages: greater activity, providing effective blood levels for up to 20
hours after a single dose compared to 4 hours for older tetracyclines; causes less
disruption to the normal bowel bacteria; has less detrimental effect on the immune
system; and is less affected by calcium and other minerals. Bromhexine HCI is an
expectorant drug, promoting bronchial secretion and having mucolytic properties. It
is commonly used in combination with antibiotics such as doxycycline HCI for the
treatment of respiratory infections in the pigeon loft. Because avian medicine has not
been commercialised as much as those for human use, it has left fanciers
experimenting with dosage forms and strengths resulting in severe consequences.
There is a great need for sophisticated medication developed specifically for the
pigeon market. Methods: This study investigated the formulation of a direct
compressed tablet and a water-soluble powder containing doxycycline HCI and
bromhexine HCI respectively and in combination. The formulation and evaluation of
the stability of an ophthalmic solution, containing doxycycline HCI was also
investigated. Initial test were done on all three formulations. The tablets were
inspected visually and tested for uniformity of mass, hardness, friability,
disintegration, assay and dissolution. The water-soluble powder was tested for its
pH, constitution time, assay, moisture content and visual properties. An "in use"
assay was also done on the doxycycline HCI powder. Three containers (stainless
steel, glass and plastic) were used and the powder was dissolved in tap water (5
mglml). Samples were taken from every container after 0, 6, 12 and 24 hours and
analysed. The results obtained were compared to the same powder but with no citric
acid in the formulation. The same containers and time intervals were used for the
comparing powder. The ophthalmic solution's appearance, pH, density, viscosity,
assay, particulate matter and preservative efficacy were tested. The formulations
were stored at three different temperatures and humidities for three months. The
above mentioned tests were repeated after every month. An HPLC method for the
simultaneous determination of doxycycline HCI and bromhexine HCI was developed
and validated. Results and discussion: Based on the different test results
generated over the twelve weeks of stability evaluation of the products that were
developed in this study, doxycycline HCI and bromhexine HCI, respectively and in
combination, seemed to have been relatively stable. The final tablets, water-soluble
powders and ophthalmic solution formulations remained stable. The "in use" assay
of the powder containing citric acid showed no discoloration, precipitation or
breakdown when dissolved in water for a period of 24 hours. The powder lacking the
citric acid showed discoloration after only 3 hours. This powder showed significant
breakdown as well. The containers used for the storage of the tablets and the
powders didn't seal tight enough. The moisture uptake was very high resulting in
poor disintegration and dissolution times. Therefore the powder and the tablets
should be stored in tightly sealed containers with enough silica as drying agent. The
containers used for the tablets, powders and ophthalmic solution respectively,
seemed not to influence the stability of the formulations negatively. The newly
developed and validated HPLC method was used to analyse the stability samples
and it proved to be reliable and easy to execute. Conclusion: Accelerated stability
tests indicated that the formulations remained stable and that no significant
breakdown occurred. Complete stability trial studies should however be conducted
to claim their stability. The newly developed HPLC method was used over the
twelve-week period to analyse accelerated stability samples, and it proved to be
reliable and easy to carry out.Thesis (M.Sc. (Pharmaceutics))--North-West University, Potchefstroom Campus, 2005.
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Foster, Theresa A. "Effects of response requirement and reinforcer delay on pigeons' demand for food in a closed economy." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0007700.
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Valachovics, Thomas Richard. "The Chronology of Glacial Landforms Near Mongo, Indiana – Evidence for the Early Retreat of the Saginaw Lobe." University of Toledo / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1563197845317213.
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Coppola, Vincent Jesse. "Neurocognitive aging in homing pigeons (Columba livia):Further investigation into hippocampal-dependent memory impairment and testing of the cholinergic hypothesis of cognitive decline." Bowling Green State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1553609743315119.
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Kollhorst, Bianca [Verfasser], Iris [Akademischer Betreuer] [Gutachter] Pigeot-Kübler, and Michal [Gutachter] Abrahamowicz. "Controlling for unobserved confounders in observational studies using large health care databases by means of instrumental variables in time-to-event analysis / Bianca Kollhorst ; Gutachter: Iris Pigeot-Kübler, Michal Abrahamowicz ; Betreuer: Iris Pigeot-Kübler." Bremen : Staats- und Universitätsbibliothek Bremen, 2017. http://d-nb.info/1130762882/34.
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Nardi, Daniele. "The Relationship Between Geometric Shape and Slope for the Representation of a Goal Location in Pigeons (Columba livia)." Bowling Green State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1219336725.
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Brady, Jocelyn Mary. "Being Human: How Four Animals Forever Changed the Way We Live, What We Believe, and Who We Think We Are." PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/1531.
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Our lives would not be what they are today without animals. From the food we eat, to the clothes we wear, animals provide tangible evidence of their importance every day. But more than that, animals have shaped who we are and what we believe. Often in ways we don't see.
That's what inspired me to write Being Human. This work began as an examination of how humans have altered animals to better match our imaginations and ideals, and too, the way these animals have irrecoverably altered how we live and look at the world. Consider, for example, that before they became physically useful to us in providing meat or skills or companionship, animals were central figures in our stories, mythologies, and religions. All the while, of course, these animals remained both ignorant and at the mercy of whatever we imagined--or needed--them to be.
And what does all of this say about us? What can we learn about ourselves from looking at animals, and more specifically, looking at the way we treat them? In a society where animal flesh comes to us freshly packed and cleanly saran-wrapped, and pets are treated as members of our families, we tend to look at animals as one thing or another. A farm pig is not a companion animal, any more than a cat is a meal-in-waiting. At least not in our culture. We generally see what's convenient or desirable and when things get messy or complicated, we tend to look away. In so doing, we miss the opportunity to clearly see who we really are, what we're capable of, and what, if anything, we might want to change as a result.
I chose four specific animals that show us different sides of ourselves. These beings are both familiar and strange, part of our everyday lives but often only found on the periphery. Each animal symbolizes one of four categories: food, pest, worker and pet. And each connects to a human need: pigs with consumption, pigeons with communication, horses with control and cats with companionship. They are arranged in this order to reflect the deepening complexity of their respective human needs--from the simplest, the need to eat, to the most complex, the need for companionship. (Arguably, control can be considered the most complex, however I chose companionship as the culminating need because it inherently involves all of the other three.)
I hope if I accomplish only one thing, it is this: after reading, you see these animals--and your relationship to them--a little bit differently than before.
20
Stein, Gary. "FALCONET force-feedback approach for learning from coaching and observation using natural and experiential training /." Doctoral diss., Orlando, Fla. : University of Central Florida, 2009. http://purl.fcla.edu/fcla/etd/CFE0002746.
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Makelo, Margaret Nafula. "Development of pigeonpea [Cajanus cajan (L.)] hybrids for the semi-arid Kenya." Thesis, 2011. http://hdl.handle.net/10413/9983.
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Pigeonpea (Cajanus cajan (L.) Millsp.) is cultivated by many farmers in the semi-arid areas of
Kenya as a source of food and cash. However, the yields have remained low, ranging between
500 to 800 kg haˉ¹. Apart from drought, fusarium wilt is reported to affect yield. Breeding
pigeonpea hybrids, using cytoplasmic male sterile (CMS) lines, hybridized with the local
improved germplasm, have the potential for increasing yield and improve income for smallholder
farmers. The objectives of the study were to: 1) examine the various stakeholders of the
pigeonpea value chain and their core functions and identify characteristics of the pigeonpea
varieties preferred by the market to be considered in the hybrid breeding programme, 2)
evaluate cytoplasmic male sterile lines of Indian origin for stability across several environments
in Kenya, 3) screen pigeonpea genotypes for general resistance to Fusarim udum Butler and 4)
evaluate pigeonpea hybrids for grain yield and earliness across sites and seasons in Kenya.
The stakeholder analysis established that the main players in the pigeonpea value chain were
farmers, traders/processors, International Crops Research Institute for the Semi-Arid Tropics,
Kenya Agricultural Research Institute, Kenya Plant Health Inspectorate Services, and Ministry of
Agriculture. White seed, large seed size and medium maturity were the preferred traits by
farmers and processors/exporters for both domestic and export markets. The unavailability of
quality seed in sufficient quantities of high yielding varieties was cited as the main factor
negatively affecting pigeonpea production. The stakeholder analysis approach, used for the first
time in a breeding programme, demonstrated that it can be an important tool that can be used to
diagnose crop production constraints, and define opportunities available for setting up a
breeding programme that is highly client-oriented.
Two CMS lines, ICPA2043 and ICPA2039 were the most stable across sites with 100% and
99% pollen sterility respectively. Screening for the presence of physiologic races of F. udum
based on morphological and cultural characteristics on PDA identified three distinct isolate
groups named ISO-A, ISO-B, and ISO-C. Studies under controlled conditions using the three
isolates identified seven pigeonpea genotypes (ICPB2043, ICP12012, ICP13092, ICPA2039xICP13092, ICPA2043xICP12012, ICPA2043xICP13092, ICPA2043xICP9135)
resistant to the three F. udum isolates. In the field evaluation, seven genotypes
(ICPA2039xICP13092, ICPA2039xAsha, ICPA2043x12012, ICPA2043xICP13092,
ICPA2043xICEAP557, ICPB2043 and Maruti) were found to be moderately resistant. The
variances due to GCA and SCA were significant, showing that both additive and non-additive
gene actions were important. The resistant hybrid, ICPA2043xICP12012 had the highest
negative SCA that was highly significant for all the isolates and in the field indicating general
resistance. The CMS (A) line ICPA2043 was found stable across environments and highly
resistant to the three F. udum isolates. Therefore, it can be evaluated further for commercial
hybrid seed production in Kenya.
Evaluation of the pigeonpea genotypes across environments indicated that the highest yielding environment was Kiboko, with average and maximum yield of 2,249 kg haˉ¹ and 4,234 kg haˉ¹ respectively. Most hybrids were in the medium duration maturity group with days to maturity
ranging from 147 to 186. Overall, the highest yielding hybrids were A2043xTZ26 and
ICPA2039xTZ24 with mean yields 2,803 kg haˉ¹ and 2,527 kg haˉ¹ respectively. Mean yields for
the best performing parents were 2,036 kg haˉ¹ for ICP12012 and 1,629 kg haˉ¹ for Asha. For
specific sites, the highest yielding hybrids in Kabete, Kiboko and Leldet were A2039xTZ24
(2,057 kg haˉ¹), A2043xTZ26 (2,803 kg haˉ¹), and A2043xUG8 (1,708 kg haˉ¹) respectively.
Mean heterosis for yield varied from -35% (A2039xA2043) to 50% (A2043xUG8). In Kenya, the
potential for production and commercialization of hybrid pigeonpea is feasible due to high hybrid vigour recorded, and the stability of the CMS lines. Hybrids also have greater uniformity in grain size a factor which is important for the market.Thesis (Ph.D.)-University of KwaZulu-Natal, Pietermaritzburg, 2011.
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TSENG, PING-CHANG, and 曾炳彰. "Taiwam pigeon game event for system analysis." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/67335459367688602961.
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碩士國立臺灣體育運動大學
休閒運動管理研究所
105
The pigeon game in Taiwan has been a kind of competition and industry covered with mystery. This competitive activity started to be held in the society of Taiwan since 1930. The mode of the competition was initially the race of the homing pigeon. This was a pioneer form of the overland pigeon flying race. By 1970, there was the Senkaku Islands Games held by “Taiwan Homing Pigeon Association” and its branches in cities and counties of Taiwan. There was first time the game rules including both the overland flying racing and the above-the-sea flying racing. After the Senkaku Islands Games, the early rudiment of the above-the-sea flying racing, the pigeon game gradually turned into being mainly held with the above-the-sea flying racing because of the massive adverse conditions of the overland flying racing. What kind of the charm does the pigeon game have in this mysterious industry which only a few people realize? This kind of the charm makes the pigeon game exist in Taiwan for over seventy years and still be lively and create almost 70-billion-dollar production value. According to the result of this research, I hope it can help people understand the competition for the pigeon game of Taiwan better.
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Tsai, Ching-Yi, and 蔡靜宜. "Efficacy study of virus-like particles vaccine for pigeon circovirus." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/rzzkec.
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碩士國立屏東科技大學
動物疫苗科技研究所
106
Pigeon Circovirus (PiCV) has been reported worldwide ever since it was reported in the 1980s. The virus attacks the pigeons' immune system specifically the bursa, which can cause immunosuppression and subsequently lead to secondary bacterial, viral or protozoan infections. PiCV infects young and old pigeons, but easily found in four to six months old pigeons therefore it is also known as young pigeon disease syndrome (YPDS). Virus-like particles (VLPs) are produced by the self-assembly of structural proteins of viruses. It is similar to natural viruses but without the viral genome. Compared with the traditional subunit vaccine, the VLP vaccine can be more effectively recognized by the antigen-presenting cells and induce a stronger immune response. In this study, the PiCV capsid protein gene was cloned into the pET32a and pGS21a vectors. Escherichia coli expression system was used to produce the recombinant PiCV capsid protein. The capsid protein will assemble into VLPs. Following purification, western blot analysis was used to confirm the antigenicity. Then, vaccine was injected via subcutaneous injection. Western blot assay showed significant band at greater than 180 k Da thus, it was hypothesized that it is a virus-like particle. Soluble protein production in pET32a-picv is better than in pGS21-picv. Induced PiCV capsid protein, more VLPs assembled at 30°C than in 37°C. The animal test showed the antibody titer of immunized with VLPs is higher than the control group. After the animal boost, they would have faster and stronger immune response.
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Huang, Kuo-Ming, and 黃國銘. "Development of monoclonal antibody for pigeon circovirus(PiCV) capsid protein." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/19752559029586259626.
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翁林祥. "The study of Mitochondrial DNA D-loop identification for pigeon." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/769v4x.
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Harris, Emma. "Strategic interdisciplinary approach for non-lethal pigeon control on the University of South Africa's Mukleneuk campus." Diss., 2016. http://hdl.handle.net/10500/22180.
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Often perceived as pests, pigeon control is applied without investigating environmental, ecological and anthropogenic factors which affect their populations and response to controls. Estate Management of the University of South Africa’s Muckleneuk campus identified a need to investigate and address a perceived pigeon problem.
Staff perceptions regarding the presence and attitude towards control of the pigeons was undertaken through an online Survey Monkey questionnaire and semi- structured interviews until saturation was achieved. It was determined that the a s sumed negative perception towards the pigeons was in fact incorrect. Participants would rather encourage the nesting and breeding activities of pigeons on campus, as they felt that the human–pigeon interactions and viewing of squabs in nests contributed positively to their work environment. Participants did not consider the pigeons or their related activities to pose a problem. It was felt that should control be imposed, the birds should rather be humanely managed through non-lethal measures rather than eradication.
Pigeon numbers on five buildings on the University’s campus were counted at dawn and dusk, every week, for two years. The first year provided baseline data and the second year was when control measures were applied. The study determined that the pigeon population index fluctuated seasonally while breeding occurred throughout the year, with notable peaks and declines relating to physiological and population dynamics. The pigeons seemed to make opportunistic use of crop availability in surrounding farmlands during optimal production periods, while conserving energy when not favourable. Site selection in relation to building aspect indicated significant differences in all the seasons except for winter, while a positive significant relationship between level height and pigeon number was recorded.
Once the control measures were applied, the total pigeon index on the campus declined by 50%. Control structures differed significantly in efficacy. Bird spikes indicated the highest efficacy at reducing the pigeon population index and seasonality did influence this efficiency. Birds of prey and an audio bird scarer were used to compare actual versus implied predator presence, it was determined that there was an association between method of scaring and the number of pigeons observed on the different time periods. Pigeons were observed to continue the natural trend of dispersion and return at the dawn and dusk counts during the audio bird scarer trial without being actively discouraged or dislodged from the building. Pigeons reacted positively to the visual raptor presence, which caused them to take flight from the buildings. The visual effect was only temporary however as pigeons returned once the threat had been removed 10 minutes post scare.
The studies concluded in an interdisciplinary management plan presented to the
University Estates.Environmental Science
M. Sc. (Environmental Science)
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Lin, Yi-Ming, and 林一明. "Practical Application of Radio Frequency Identification in Paring for Pigeon Racing." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/467w2c.
Full textAbstract:
碩士國立勤益科技大學
資訊工程系
106
This study explored multifaceted applications of radio frequency identification (RFID). In recent years, RFID has had a wide-ranging influence on our lives, and because of the prevalence of RFID technology, public convenience and safety have improved. RFID technology is currently used for simple applications such as store merchandise management, clock-in and clock-out systems, access control, the EasyCard system, and electronic toll collection. Because foot rings with an RFID function have been used for pigeon racing, through new defect-prevention techniques, existing low-frequency RFID foot rings were combined with ultra-high-frequency RFID in this study to achieve a multifaceted effect. Because of the characteristics of RFID, the low- and high-frequency bands do not interfere with each other. Accordingly, the originally cumbersome pairing and copying work can be replaced with automatic pairing and detection by the RFID system. In addition, the graphical user interface designed in this study can be employed to save labor resources and working hours, eliminate data errors generated during human transcribing or fatigue, and provide complete and accurate pairing data.
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Phillips, Craig Lee. "Captive Propagation of Tangerine Darters for Re-introduction in the Pigeon River, Tennessee." 2007. http://trace.tennessee.edu/utk_gradthes/314.
Full textAbstract:
The Pigeon River suffered major water quality degradation from 1908 through the 1980’s from paper mill effluent which resulted in the extirpation of many native fish species. Mill modifications have cleaned the effluent to the degree where some native species are recolonizing many areas of the river. In 2001, the Pigeon River Restoration Project was initiated to re-introduce native non-game species which have been unable to return of their own accord. In addition to relocation of selected suitable species, captive production of the tangerine darter (Percina aurantiaca) has been attempted since current translocation methods have proven impractical due to the small number found in the Pigeon River system. It is anticipated that, through hatchery propagation, sufficient numbers of tangerine darters might be produced for re-introduction. This method has seen limited success with other Percina species.
Using brood stock of tangerine darters collected from the Pigeon River above the paper mill, three attempts to spawn and propagate tangerine darters were conducted at the Conservation Fisheries Incorporated (CFI) facility in Knoxville, TN. In the first trial, no eggs were spawned; the second year produced approximately 290 eggs and larvae but relatively few survived. The third attempt produced approximately 331 eggs and larvae, resulting in approximately 85 juveniles, but grow-out was problematic; future propagation efforts will target optimum grow-out densities as well as determine the nutrition requirements for larval and juvenile tangerine darters.
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Kuo, Cherng-Chin, and 郭呈欽. "Analysis of pigeon liver malic enzyme binding sites for NADP+ and L-malate by alanine scanning mutagenesis." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/87930353408700566210.
Full textAbstract:
碩士國防醫學院
生物化學研究所
84
Cytosolic malic enzyme [(S)-malate:NADP+ oxidoreductase (oxaloacetate-decarboxylating), EC 1.1.1.40] decarboxylates L- malate to yield pyruvate and CO2 with concomitant reduction of NADP+ to NADPH. This generated NADPH is a source of the reducing equivalents necessary for the de novo biosynthesis of long-chain fatty acid. The pigeon liver cytosolic malic enzyme is a tetramer composed of four identical subunits with molecular weight about 65,000 dalton. Based on the chemical modification studies, histidine and arginine residues were proposed to involve in the NADP+ binding and L-malate, respectively. Aligning of amino acid sequence of pigeon liver cytosolic malic enzyme with those from other species, twenty-two arginine and six histidine residues were located in the highly conserved regions. These highly conserved amino acid residues were mutated by the alanine scanning mutagenesis. These mutants were the subjects for preliminary kinetic studies. The apparent Km values for L-malate for R24A and R70A is increased by about 5-fold and 10-fold, respectively. Both the apparent Km values for Mn2+ for R24A and R70A are increased by about 10-fold. The kcat values for R24A and R70A are decreased by 10-fold and 1.5-fold, respectively. The kinetic parameters of all other mutants are similar to those for wild type. These results indicate that both of R24 and R70 may be involve in L-malate binding. The KmNADP+ values of all the mutants are almost identical to that of the wild type. It suggested that these amino acid residues may not involve in the nucleotide binding. Not all mutants showed as tetramer on native PAGE gel. All the mutants showed one protein band in molecular weight about 65 ,000 dalton on SDS PAGE gel. These results appear to indicat that these amino acid residues may participate in subunit''s interaction.
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Lee, Cheng-Tse, and 李政哲. "The Study of Training and Tracking for Racing Pigeons Using RFID." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/4n8d69.
Full textAbstract:
碩士國立中興大學
資訊管理學系所
104
RFID applications in the industry have rapidly expanded to the relevant medical, communications, digital content, biotechnology, and information services, which cover the daily life of food, clothing, housing, transportation, education, and music which have the relevant application visibility. RFID applied to industrial applications pigeons is mainly used to identify participating pigeons and streamlining manpower to avoid human negligence so to increase job processing operation efficiency. This paper will extend RFID application pigeon industry combined with GPS and telecommunication network to build a complete training pigeon tracking system architecture. The whole process information from pigeon training before race to the end of race, such as training information, contest information and flight path information, etc., are fully documented through the Internet or telecommunications network, immediate delivery to related personnel and back-end application server system to archive, analysis and application. System architecture of the present study is divided into three parts: The first part is the training for the RFID system architecture; the second part is the GPS tracking system architecture; the third part is the real-time tracking system architecture. The architecture effectively improves the operational efficiency of dove training and competition, reduce human error and jobs, save on labor costs and operating costs, reduce the proportion of lost pigeons without return, and reduce the chances of cheating the whole pigeon competition violations, so that the entire competition process is more fair, just and open. In addition, the system collected training and flight path information through e-information, so it is not easy to lose or damage, and provides other applications systems analysis and easy to use, for example, pigeon monitoring systems, pigeon electronic map system, pigeon medical systems, pigeon competition results system, breeding system, and pigeon training systems, so that the entire value and user satisfaction of pigeon industry has greatly improved.
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Kiesel, Diann Susan. "Holocene stratigraphy of the river-mouth sediments of the Pigeon River, Eastern Wisconsin implications for lake-level fluctuations /." 1998. http://catalog.hathitrust.org/api/volumes/oclc/40295700.html.
Full textAbstract:
Thesis (Ph. D.)--University of Wisconsin--Madison, 1998.Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 78-84).
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Ware, Emma. "Interactive behaviour in pigeons: Visual display interactions as a model for visual communication." Thesis, 2011. http://hdl.handle.net/1974/6396.
Full textAbstract:
Four experiments are presented that explore social interactivity in a visually communicating species: the pigeon, Columba livia. A closed-loop teleprompter system was used to isolate, control and manipulate social contingency in a natural courtship interaction. Experiment 1 tested different ways to measure pigeon behaviour and developed an automatic method for measuring the pigeon’s circle walking display using motion energy analysis. In Experiment, 2 the subject’s courtship behaviour towards the video image of an opposite sex partner streamed live (Live), was compared with their behaviour towards a pre-recorded video image of the same partner (Playback). The only difference between the Live and Playback condition was the presence or absence of social contingency. The results showed that pigeons behaved interactively: their behaviour was determined, in part, by the social contingencies between visual signals. To investigate what types of social contingencies are behaviourally relevant, the effects of the partner’s facing direction and the timing of social contingencies on behaviour were investigated in Experiment 3 and 4, respectively. To manipulate partner facing direction, the camera was rotated so that the partner appears to be courting 90° away from the subject. To manipulate social timing, three time delays, 1, 3 and 9s, were implemented within the closed-circuit communication. In Experiment 4, the context-specificity of interactive behaviour was also investigated by testing behavioural sensitivity to social contingency and timing in both opposite sex and same sex social interactions. The results showed that the partner’s facing direction did not significantly influence behaviour, whereas the timing of social contingencies had a significant impact on behaviour: in courtship only. These findings suggest that temporal relations between display bouts in courtship are behaviourally relevant. A post hoc analysis was then used to evaluate the behavioural relevance of two social contingencies in particular: partner responsiveness and simultaneous display. The results showed that females may be sensitive to the male responsiveness in courtship. Also, simultaneous display appeared to create a perceptual interaction which acted to potentiate the courtship dynamic. These studies provide a basis for further developing the pigeon and its courtship behaviour as a model for visual communication.Thesis (Ph.D, Neuroscience Studies) -- Queen's University, 2011-04-25 14:37:19.888
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Lai, Miouling, and 賴妙玲. "An Empirical Analysis of Uncover Interest Parity：Evidence from the Four PIGSof European Union." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/74161736996921000203.
Full textAbstract:
碩士大葉大學
管理學院碩士在職專班
100
In this paper we investigate the causal relationship between Gross domestic return and Uncovered gross foreign return among the four PIGS of European union and empirical analysis of Uncover Interest Parity(UIP). Monthly data are obtained from International Montetary Fund (IMF).The sample period starts from 2001:1 to 2010:12 . We employ the mothods of the panel unit root, panel cointegration and panel FMOLS and DOLS estimators. The article finds the results : First, the group-mean estimates of the four countries, the esti- mates coefficients are 0.1 (FMOLS) and 0.05 (DOLS), accept the null of : at 5% level. The results are in line with the UIP condition, but the estimates are lower from 1. Second, based on the individual tests, the individual estimated coefficient for Italy and Spain are positive, the individual estimated coefficient for Portugal and Greece are negative. Third, only the country of Greece reject the null at 5% level, the UIP needs to be rejected. The four PIGS of European Union in this paper of the sample period, the other countries:Portugal, Italy, Spain are in line with the UIP condition.We provide some policy implications that can be used as guiding tools for financing andinvestment dicisions in PIGS of European Union.
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Moreira, Fernando Xavier Ferreira. "Doping in racing pigeons - Identification of most commonly used substances and development of methodologies for their detection and quantification." Tese, 2019. https://hdl.handle.net/10216/120970.
Full text
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Moreira, Fernando Xavier Ferreira. "Doping in racing pigeons - Identification of most commonly used substances and development of methodologies for their detection and quantification." Doctoral thesis, 2019. https://hdl.handle.net/10216/120970.
Full text
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"A process of technical direction for Tulane Theatre’s staging of Pigpen Theatre’s "The Old Man and the Old Moon": A thesis." Tulane University, 2020.
Find full textAbstract:
archives@tulane.eduThe Pigpen Theatre Company’s devised musical The Old Man and The Old Moon was produced by the Tulane University Department of Theatre and Dance in November of 2019. The show was produced and presented at Tulane University’s Lupin Theater under the direction of Assistant Professor Monica Payne. The artistic design was led by a staff of third-year MFA students including scenic designer Myrna Padilla, costume designer Samantha Johnson, and lighting designer Jasmine Williams. The production stage management was led by Joey Vreeland (first year MFA student) with assistance from Sarah Peeler (BFA 2021). I acted as technical director with support from scene shop practicum students, graduate students, and Anthony Contello, Staff Assistant Technical Director. Professor of Practice in Musical Theatre and Voice Michael McKelvey was the musical director. The cast consisted entirely of Tulane undergraduate students, most of whom doubled as musicians for the musical. The production opened on November 19th, 2019 and closed on November 24th, 2019. The purpose of this thesis is to explore the process of technical direction, examining the particular requirements of this project’s design and how our production ultimately executed a variety of solutions.
1
Christopher M Givens
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Zimmerman, Guy Thomas. "Comparison of Baseflow-Stormflow Ion Mass Export for Two Streams in the Great Smoky Mountains National Park." 2011. http://trace.tennessee.edu/utk_gradthes/931.
Full textAbstract:
This study characterizes the mass transport of ions in two streams in the Great Smoky Mountains National Park, comparing transport between stormflow and baseflow periods. By comparing ion mass transport between these two hydrological conditions, the importance of soil and the governing biogeochemical processes will be underscored. Two water quality monitoring study sites were located on the Middle Prong of the Little Pigeon River and Ramsey Prong within the same basin. These remote sites were equipped with YSI 6920 multi-parameter sonde to record continuous 15-min data of pH, depth, conductivity, turbidity, and temperature. Additionally, ISCO 6712 composite samplers were used to collect stream samples during storm events. Baseflow was collected by grab samples prior to storm events, and stormflow collected by ISCO samplers. Throughfall samples were collected after storm events. All samples were analyzed for pH, ANC, and conductivity using an autotitrator. Inductively coupled plasma spectrometry and ion chromatography were used to determine major cations, trace metals, and anions (Ca2+, Na+, K+, Mg2+, Aln+, Cu, Fe, Mn, Si, Zn, SO42-, NO3-, Cl-, NH4+). Stage-discharge relationships were developed at each site utilizing a combination of field measurements and modeling. Velocity and area field measurements were taken to calculate discharges for mid- to low-flow stages while mid- to upper-flow stages were modeled using RIVER2D and verified with field measurements. Stage-discharge curves and sample ion concentrations were used to compute ion mass transport for a two year period in 2006 through 2008. Differences in mass transport of ions between baseflow and stormflow periods found that greater mass transport of ions, except protons, occurred during baseflow periods. These results indicate that on an annual basis ions are stored from input throughfall sources and released gradually through groundwater flow over time more than rapid interflow transport during storm events. This information illustrates the importance of soils and groundwater storage in the regulation of ion transport and streamwater quality in the Great Smoky Mountains National Park.