Dissertations / Theses on the topic 'Palmenti'
To see the other types of publications on this topic, follow the link: Palmenti.
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Palmenti.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
SURACE, DOMENICO MICHELE. "ARCHEOLOGIA DEL VINO: ANFORE E PALMENTI RUPESTRI. IL CASO DELLA CALABRIA." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/803981.
Full textAbstract:
È noto come il vino abbia rivestito un notevole ruolo nell’economia e nella cultura italiana fin dall’antichità e pertanto si configura come oggetto di grande interesse storico e archeologico.
In particolare, la vite e il vino rivestono un ruolo importante nella storia economica della Calabria, dalle origini della coltivazione della Vitis Vinifera a opera degli Enotri all’avvento di una diversa tecnica di allevamento derivata dai Greci, e durante le fasi di occupazione romana, magno-greca e bizantina: la società si è trasformata eppure i metodi di coltivazione della vite e di vinificazione sono rimasti pressappoco uguali nei secoli.
Ad oggi, tuttavia, le ricerche di “archeologia del vino” sono state caratterizzate da una doppia limitazione: da un lato di carattere disciplinare – affrontando il tema dell’antica produzione di questo alimento da un singolo punto di vista, connesso al valore socio-culturale ed economico del prodotto o a quello paesaggistico e vegetazionale della vite – e dall’altro lato di natura contestuale – considerando solamente singole aree e solo di rado collegandole tra loro.
Il lavoro per la tesi di dottorato vuole andare oltre una lettura unidirezionale dei dati, perseguendo una visione multidisciplinare che permetta di integrare agli aspetti dell’indagine storico-archeologica quelli della sfera agronomica ed ambientale.
In considerazione di tale approccio e secondo tali premesse, l’indagine sulla Calabria è rivolta a diversi ambiti: a seguito di una disamina orientata alla conoscenza dell’antico paesaggio agrario della regione e dei parametri del suo sfruttamento, con specifico riferimento alla vite, si intende indagare le antiche strutture di produzione del vino (i palmenti), il sistema della produzione in età romana (attraverso la presentazione di una panoramica e di un approfondimento sulle villae del territorio), quindi il commercio del prodotto (mediante l’esame dei porti e delle strade nonché dei contenitori anforici di origine calabrese) per determinare cronologie e rintracciare le antiche reti sociali e culturali.That wine has been playing a significant role in the Italian economy and culture since ancient times is a known fact, just as well as it is acknowledged that it represents a matter of great historical and archaeological interest. In particular, the vine and the wine have performed an important function in Calabria’s economic history since the origins of the cultivation of the Vitis Vinifera by the Oenotrians. The important role of wine continues being evident during the Greek phase, through the advent of a different breeding technique, as well as in the Roman, Magno-Greek and Byzantine phases: the society had been transformed, yet the methods of vine-cultivating and wine-making remained roughly the same over the centuries. As of today, however, the research on "wine archeology" is characterized by a double limitation: from one side, by the disciplinary sphere (addressing the topic of the ancient wine production from a single point of view, connected either only to the socio-cultural and economic value of the product or to the environment and vegetation), and from the other side, by the contextual sphere (considering only individual geographical areas that only rarely get connected to each other). The work for the doctoral thesis aims at going beyond a unidirectional consideration of data and intends to pursue a multidisciplinary study that allows to integrate the aspects of the historical-archaeological investigation with those of the agronomic and environmental research. In consideration of this approach and according to these premises, the study on Calabria examines different fields: after having investigated the ancient rural landscape of the region and the parameters of its exploitation, with specific reference to the vine, the project intends to analyze the ancient structures of wine production (the rock-cut units), the system of the production in the Roman age (through the presentation of an overview and an in-depth analysis of the villae of the territory), then the trade of the wine (by examining the ports and the streets as well as the vinary amphorae of Calabrian origin) in order to determine chronologies and trace the ancient social and cultural networks.
2
Johnson, Roxane Jeannette. "Effects of fire on Agave palmeri." Thesis, The University of Arizona, 2001. http://hdl.handle.net/10150/291511.
Full textAbstract:
I investigated the effects of prescribed fire on Agave palmeri , an important seasonal food source of the federally Endangered bat, Leptonycteris curasoae yerbabuenae. Three different treatments were randomly assigned to plots containing agaves within a burn unit: plots were burned with extant fuel, plots were left unburned, and plots were burned with an augmentation of fuel. Agaves were surveyed before the fires, immediately after the fires, and one and two years after the fires. Mortality and survivorship with the fuel load, agave size and the type of clusters in which the agaves grew. Agaves near mesquite and acacia trees or dead, dried agaves experienced higher mortality than agaves growing elsewhere. Agaves in plots with added fine fuels also had higher rates of mortality. One year post-fire, mortality was low in all treatments and recruitment was higher on augmented and burned plots than on unburned plots. Two years post-fire, mortality of small Agave palmeri was associated more strongly with rainfall than with fire treatment, while mortality of larger height classes of agaves exhibited a delayed response to fires.
3
Isaacson, Kerma Joan Gorringe. "Kindergarten handbook for parents of Palmetto Elementary School." CSUSB ScholarWorks, 1997. https://scholarworks.lib.csusb.edu/etd-project/1544.
Full textAbstract:
The handbook tells about the characteristics of a five-year-old child, work and play in kindergarten, and when we respond to the environment. The handbook shares suggestions that will enable parents to understand the purpose and programs of the school and to promote understanding and enthusiasm for school.
4
Tadeg, Getnet Assefa. "Evaluation of tagasaste (Chamaecytisus palmensis) as forage for ruminants /." Berlin : Köster, 2007. http://deposit.d-nb.de/cgi-bin/dokserv?id=3030134&prov=M&dok_var=1&dok_ext=htm.
Full text
5
Peredo, Silva Liliana. "Protocolo para evaluar el perfil de seguridad de un extracto de CO2 fluido supercrítico de Saw palmetto (Serenoa repens W. Bartram)." Tesis, Universidad de Chile, 2010. http://repositorio.uchile.cl/handle/2250/105334.
Full textAbstract:
Memoria de Título para optar al título de Química FarmacéuticaLos extractos herbales deben ser evaluados en cuanto a eficacia y seguridad. Estudios de toxicidad aguda in vivo deben considerar los diferentes mecanismos por los cuales los principios activos pueden producir toxicidad. Por consiguiente, se desarrolló una metodología para examinar parámetros generales relacionados con la respuesta de toxicidad aguda. Para ello se utilizaron ratas Sprague-Dawley machos las cuales fueron tratadas con dos dosis de Saw Palmetto, Serenoa repens W. Bartram HiPower® (la dosis recomendada para humanos y una dosis 10 veces mayor) durante 10 días. Se evaluaron los parámetros generales homeostáticos (hemograma y perfil bioquímico), así como características morfológicas de tejidos involucrados en la respuesta a xenobióticos (hígado, timo, bazo y ganglios linfáticos). Todos los parámetros analizados no fueron significativamente diferentes en el grupo control como en los tratados con ambas dosis de Saw Palmetto, HiPower®, sugiriendo que este preparado comercial presenta un buen perfil de seguridad durante el periodo de tratamiento evaluado. La diferencia en las dosis utilizadas fue un orden de magnitud y a pesar de ello, no se observaron alteraciones en los parámetros medidos. El protocolo utilizado en este estudio podría ser utilizado para ensayar la toxicidad aguda in vivo de diferentes extractos herbales.
Herbal extracts must be evaluated for their efficacy and safety. In vivo acute toxicity studies must consider the different mechanisms by which active compounds may elicit toxicological outcomes. Thus, a methodology to test general parameters related to acute toxicity responses in a murine model was developed, using a Saw Palmetto, Serenoa repens W. Bartram extract (HiPower®): adult male Sprague-Dawley rats were treated orally with two doses of Saw Palmetto (the recommended dose for humans and a dose 10-fold higher) for 10 days, to examine general homeostatic parameters (hemogram and clinical chemistry) as well as morphological features of tissues involved in the response to xenobiotics (liver, timus, spleen, and lymphatic ganglia). All the parameters assayed did not undergo significant changes during treatment, suggesting that the commercial extract of Saw Palmetto HiPower® displays a good safety profile for the period tested. The doses assayed spanned over one order of magnitude in the drug concentration and we did not observe differences in the parameters assayed. This method may be adopted for testing the in vivo acute toxicity of any herbal extracts
6
Newman, Dara 1962. "The evaluation of Pedilanthus palmeri Millsp. as a potential interior landscape plant." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276776.
Full textAbstract:
Pedilanthus palmeri Millsp. was evaluated as a potential interior landscaping plant. The optimal propagation technique, production and post-production light requirements, growth regulator response and photoperiod requirement were analyzed. Cuttings were successfully rooted within five weeks after treatment with aqueous solutions of IBA. Root fresh weight increased from 0.58 g with 0 mg·liter⁻¹ IBA to 1.12 g with 6736 mg·liter⁻¹ IBA. No difference in leaf length, width or thickness, plant height or node number was found between plants grown under 77% and 88% shade. Plants moved to a low light interior environment continued to grow and new, thin leaves replaced abscised leaves. The optimum concentration of the growth retardant Bonzi (paclobutrazol), 0.125 g ai per pot, caused a 46% reduction in shoot height. Apical pinching and 500 mg·liter-1 BA increased branch number 3.8-fold. Pedilanthus palmeri is a short day plant. Flowering occurred in the 8 and 10 hour light treatments but not in the longer photoperiods.
7
Douda, Nikolaus. "The conditio humana and George Saiko's anthology Giraffe unter Palmen." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240184.
Full text
8
Pavliscak, Laura. "Restoring Agave palmeri Populations: Critical Factors for Seeding and Transplanting in Disturbed Landscapes." Thesis, The University of Arizona, 2010. http://hdl.handle.net/10150/193456.
Full textAbstract:
Agave palmeri (Palmer's agave) is a semelparous, perennial succulent thought to provide critical forage for the endangered species, Leptonycteris curasoae (lesser long-nosed bat). Preserving intact agave populations and mitigating loss of habitat may be critical to L. curasoae recovery. Two methods for restoring A. palmeri in disturbed habitats were evaluated: seeding and translocation. In a greenhouse, the emergence and establishment of 2700 seeds was tested across four environmental variables: irrigation level, shade, surface mulch, and soil type. The overall emergence of seedlings was low, particularly in low irrigation, unshaded, unmulched treatments--conditions that might be commonly expected in disturbed habitats. In the field, growth responses of 277 wild transplants were assessed in relation to size class, initial water availability, and storage method. Transplants of all sizes responded positively when replanting coincided with seasonal rainfall, suggesting that salvaging and replanting A. palmeri plants may be a promising restoration strategy.
9
Tam, Chun-wai, and 談振偉. "Combating prostate diseases with ethnobotanical drugs: inhibition of prostate cancer cell proliferation by SawPalmetto (Serenoa repens) extracts." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B29188969.
Full text
10
Garcia-del-Ray, Eduardo. "Comparative ecology of the Canary Island blue tit complex (Parus caeruleus teneriffae, palmensis, ombriosus, degener)." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401059.
Full text
11
Palmén, Tuula. "Nephrin and its associated protein complex in the kidney and pancreas." Helsinki : University of Helsinki, 2003. http://ethesis.helsinki.fi/julkaisut/laa/haart/vk/palmen/.
Full text
12
Nakka, Sridevi. "Physiological, biochemical and molecular characterization of multiple herbicide resistance in Palmer amaranth (Amaranthus palmeri)." Diss., Kansas State University, 2016. http://hdl.handle.net/2097/34474.
Full textAbstract:
Doctor of PhilosophyDepartment of Agronomy
Mithila Jugulam
Palmer amaranth (Amaranthus palmeri) is one of the most aggressive, troublesome and damaging broadleaf weeds in many cropping systems including corn, soybean, cotton, and grain sorghum causing huge yield losses across the USA. As a result of extensive and intensive selection of pre- and -post emergence herbicides, Palmer amaranth has evolved resistance to multiple herbicide modes of action, microtubule-, 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS)-, acetolactate synthase (ALS)-, photosystem II (PS II)-, hydroxyphenylpyruvate dioxygenase (HPPD)- and more recently to protoporphyrinogen oxidase (PPO)-inhibitors. A Palmer amaranth population from Kansas was found resistant to HPPD-, PS II-, and ALS-inhibitors. The overall objective of this research was to investigate the target-site and/or non-target-site resistance mechanisms in Palmer amaranth from KS (KSR) to mesotrione (HPPD-inhibitor), atrazine (PS II-inhibitor), and chlorsulfuron (ALS-inhibitor) relative to known susceptible Palmer amaranth from Mississippi (MSS) and KS (KSS). Whole plant dose-response assays showed high level of resistance in KSR to mesotrione, atrazine and chlorsulfuron. KSR was 10-18, 178-237 and >275 fold more resistant to mesotrione, atrazine, and chlorsulfuron, respectively, compared to MSS and KSS. Metabolism studies using [¹⁴C] labeled mesotrione and atrazine demonstrated non-target-site resistance to both herbicides, particularly, enhanced metabolism of [¹⁴C] mesotrione likely mediated by cytochrome P450 monooxygenases and rapid degradation of [¹⁴C] atrazine by glutathione S-transferases (GSTs). In addition, molecular and biochemical basis of mesotrione resistance was characterized by quantitative PCR (qPCR) and immunoblotting. These results showed 4-12 fold increased levels of the HPPD transcript and positively correlated with the increased HPPD protein. Sequencing of atrazine and chlorsulfuron target genes, psbA and ALS, respectively, showed interesting results. The most common mutation (serine264glycine) associated with atrazine resistance in weeds was not found in KSR. On the other hand, a well-known mutation (proline197serine) associated with chlorsulfuron resistance was found in 30% of KSR, suggesting ~70% of plants might have a non-target-site, possibly P450 mediated metabolism based resistance. Over all, KSR evolved both non-target-site and target-site based mechanisms to mesotrione and chlorsulfuron with only non-target-site based mechanism of resistance to atrazine leaving fewer options for weed control, especially in no-till crop production systems. Such multiple herbicide resistant Palmer amaranth populations are a serious threat to sustainable weed management because metabolism-based resistance may confer resistance to other herbicides and even those that are yet to be discovered. The findings of this research are novel and valuable to recommend appropriate weed management strategies in the region and should include diversified tactics to prevent evolution and spread of multiple herbicide resistance in Palmer amaranth.
13
Ahmed, Amro Mohamed Aly Tawfic. "Control, Assessment and Glyphosate Resistance of Palmer Amaranth(Amaranthus palmeri S. Wats) in Virginia." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/34563.
Full textAbstract:
Glyphosate resistant crops were rapidly adopted by farmers since their introduction in 1996 and currently, greater than 90% of cotton and soybean crops are glyphosate resistant. Glyphosate has been an effective mean for controlling Palmer amaranth, however overreliance on glyphosate based systems resulted in weeds that can no longer be controlled with glyphosate. Palmer amaranth resistance to glyphosate has been confirmed in ten US states including Virginiaâ s bordering neighbor North Carolina. The objectives of this study were to i) determine the spread of Palmer amaranth and evaluate awareness among farmers and agribusinesses of herbicide resistant weeds in Virginia; ii) determine the efficacy of commonly used cotton and soybean herbicides programs for Palmer amaranth control; and iii) conduct greenhouse experiments to quantify the level of glyphosate resistance in a Greensville County, Virginia population. Using a communication network of Virginia county extension agents and crop advisers, Palmer amaranth was found in 15 Virginia counties. A survey was conducted to evaluate awareness of herbicide resistance and management of weeds in Virginia. Ninety percent of producers had fields planted to Roundup Ready® crops for each of the last 3 years. One hundred percent of the responders claimed awareness of the potential for weeds to develop resistance to glyphosate, but when asked about how serious they consider weed resistance to herbicides, the responders average rating was of 7.9 (on a scale of 1 to 10 where 1 is â not at all seriousâ and 10 is â very seriousâ ). Eighteen percent of the responder population claimed no awareness of glyphosate resistant weeds
documented in Virginia. Herbicide efficacy experiments were established in soybean and cotton fields infested with Palmer amaranth. In soybean, experiments were established in a field where Palmer amaranth was not adequately controlled with glyphosate in the previous year. Glyphosate applied at 0.87 + 0.87 + 1.74 kg ae ha-1 at 1, 3, and 5 weeks after planting (WAP) provided 82 to 85% control in 2009, but only 23 to 30% control in 2010, a hot and dry year. Glyphosate applied after preemergence (PRE) herbicides improved control to 90 percent. Programs that included s-metolachlor + metribuzin applied preemergence and followed by glyphosate + fomesafen applied postemergence provided the best control (93%) at 8 WAP. Glufosinate based herbicide programs provided greater than 85% control when applied alone, and control increased to 95% when preceded by PRE herbicides. Many conventional control systems integrating different modes of action provided more than 80% control at final evaluation of Palmer amaranth in 2009 and 2010. In soybean, the most consistent and effective program was flumioxazin applied PRE followed by chlorimuron + thifensulfuron, which provided 99 and 82% control at final evaluation in 2009 and 2010, respectively. Cotton fields were heavily infested with Palmer amaranth, but control with glyphosate had historically been good. Glyphosate applied early postemergence, late postemergence, and late post-directed provided more than 95 percent control at final evaluation of Palmer amaranth. Preemergence applications of fomesafen, fluometuron, or pendimethalin + fomesafen provided 77 to 99 percent early-season control and control was complete with an additional postemergence glyphosate application. Glufosinate applied at 0.45 kg ha-1 at 1 and 3 WAP or applied at 0.45 kg ha-1 following a preemergence herbicide provided greater than 95% control. Greenhouse experiments confirmed Palmer amaranth resistance in a population collected from Greensville County, Virginia. In the first experiment, the resistant biotypeâ s I50 value (rate necessary for 50% inhibition) for dry weight was 1.47 kg ae ha-1, which is 4.6 times greater than the susceptible biotype and 1.7 times the recommended use rate of glyphosate. For fresh weight, the I50 value of the resistant biotype was 1.60 kg ae ha-1, 4.7 times that of the susceptible biotype of 0.34 kg ae ha-1. In the second experiment, the I50 value for the susceptible population could not be determined because all glyphosate rates resulted in complete control. However, the resistant population required 1.01 and 1.30 kg ae ha-1of glyphosate to reduce the fresh and dry weight by 50%.
Master of Science
14
Rumpa, Mafia Mahabub. "EFFECT OF PPO-INHIBITING HERBICIDES ON MALE-TO-FEMALE SEX RATIO OF AMARANTHUS PALMERI." OpenSIUC, 2017. https://opensiuc.lib.siu.edu/theses/2259.
Full textAbstract:
TITLE: EFFECT OF PPO-INHIBITING HERBICIDES ON MALE-TO-FEMALE SEX RATIO OF AMARANTHUS PALMERI Background: Amaranthus palmeri S. Wats. (Palmer amaranth) is a dicotyledonous, dioecious species having separate male and female plants that forces outcrossing, ensures genetic diversity, and is recognized as one of the most noxious, invasive agricultural weed pests in the Mid-West. It can be characterized by extended emergence periodicity, aggressive growth habit, high fecundity, and high water use efficiency as well as high competitive ability. Fisher (1930) predicted 1: 1 primary sex ratios after the period of parental investment, but initial field studies indicated that A. palmeri populations were female-biased, departing from the expected 1:1 sex ratio. Therefore, managing population sex ratios would be an important consideration for controlling A. palmeri populations, as this species has become resistant to several herbicide modes of action. Objective: This study was conducted to investigate the male-to-female sex ratio of Amaranthus palmeri following exposure to PPO-inhibiting herbicides, to gain a better understanding of potential effects of herbicide application on the population sex ratio. Methods: A greenhouse experiment and a two-year field experiment were conducted at the Horticultural Research Center, Southern Illinois University Carbondale in spring 2016 and Collinsville, Illinois in the summer season of 2015 and 2016, respectively. The greenhouse experiment was conducted by applying two protoporphyrinogen oxidase (PPO)-inhibiting herbicide treatments of either lactofen (Cobra) or fomesafen (Flexstar) on four different Illinois populations (Cahokia, Collinsville, Rend Lake, and Massac). The field experiment was conducted for two years in a soybean field throughout the growing season of 2015 and 2016 in Collinsville, Illinois, USA. This study included 12 pre- and post-emergence PPO-inhibiting herbicide treatments of 10 herbicides with 3 replicates to investigate the variation among sex ratios by treatment. Results: For the greenhouse experiment, depending on the population, herbicide treatments expressed a male-to-female sex ratio of either 1:1 or male-biased in contrast to the female-biased field observations. This study also suggested that these PPO-inhibiting herbicide treatments may have an influence on the growth and sex ratio of A. palmeri populations. The field experiment indicated that A. palmeri populations have a female-biased sex ratio in untreated controls. The pre-emergence application of sulfentrazone (Spartan) at rates of 226.8 to 340.19 g a.i./ha provided the highest control efficacy, as compared to other treatments. Post-emergence-only applications provided limited control over the population. Fomesafen (Flexstar) was the only PPO-inhibiting herbicide which led to a male-based population in both years. In the future, and with increased understanding of the mechanism behind sex expression in A. palmeri, knowledge of plant-environment relationships such as these could provide an opportunity to reduce seed production in populations by favoring the production of males.
15
Palmen, André [Verfasser]. "Untersuchungen zur Leistungssteigerung und Bewertung der Effizienz von hydrostatischen Verdrängereinheiten / André Palmen." Aachen : Shaker, 2009. http://d-nb.info/1126378232/34.
Full text
16
Yensen, Susana Bojórquez. "Characterization of the proteins and flour of Distichlis palmeri (Vasey) grain and Distichlis spp. fiber." Diss., The University of Arizona, 1995. http://hdl.handle.net/10150/187350.
Full textAbstract:
Proteins from a halophyte cereal Distichlis palmeri, whole-grain flour were fractionated on the basis of their solubility. Five fractions were obtained and each analyzed for fifteen amino acids. The amino acid pattern of the whole-grain was similar to that of a cereal. The percent of amino acids for the ethanol extraction ranged from a high of 35% glutamine to a low of 0.18% lysine. The fractions were rich in asparagine and glutamines. The lysine content of this grain is higher than that of wheat and the highest percentage (6.3%) was found in the water soluble fraction. Protein recovery of the different fractions ranged from 78% to 87%. SDS polyacrylamide gel electrophoresis showed that the water soluble fraction had a wide range of molecular weight proteins; the NaCl fraction had circa 10 proteins in high concentrations; the prolamine fraction had a band at about 22,000 daltons with two weak bands at 45,000 and 66,000 daltons; the 2-mercaptoethanol fraction had few weak bands, and the SDS fraction had circa 6 bands present in high concentrations. The foaming capacity and stability of the albumin fraction of Distichlis palmeri was excellent. The whole-grain flour of Distichlis palmeri had a better water and oil holding capacity as g/g protein. The emulsion capacity of the whole-grain flour was also better than in its protein fractions. When evaluated with a Hedonic scale for taste preference there was no significant difference in flavor acceptance between the "exclusive" eaters and "frequent" eaters of whole-wheat products. Overall, the "exclusive" eaters of whole wheat rated Distichlis palmeri muffins significantly higher than either the "occasional" eaters or the "frequent" eaters. The 50/50 mix received the highest rating. The grain of Distichlis palmeri has 5.15% soluble fiber and 12.7% of insoluble fiber. No trypsin inhibitor activity was detected in the flour. The two forages (Distichlis spp.) analyzed had 6.10% and 15.20% of protein respectively. Acid detergent fiber was 33% and 20%. Low lignin was found in both grasses (6.8% and 5.10%). Mineral content for both forages was: Ca (0.3% and 0.5%); Mg (0.09% and 0.2%); P (0.12% and 0.21%); Zn (6.2 ppm and 20 ppm), and Cu (5.5 ppm and 6.7 ppm).
17
Ribeiro, Joana Sofia Santos Vidal. "Influência dos sistemas de condução e da prohexadiona-cálcio na produtividade da pereira Rocha." Master's thesis, ISA/UTL, 2011. http://hdl.handle.net/10400.5/4186.
Full textAbstract:
Mestrado em Engenharia Agronómica - Instituto Superior de AgronomiaVegetative and reproductive aspects of 5 year old orchard of Rocha 'pear on Sydo rootstock trained in Vertical Axis, Palmette with 3 axes, Solaxe and Tatura systems were evaluated. Yield per hectare showed a large increase in 2011 compared with 2010, Vertical axis yield 88 tha-1, Palmette 66 tha-1, Solaxe 76 tha-1and Tatura 84 tha-1. Fruit thinning was not done. Palmette was the system whose branches had lower cross-sectional area and length, lower fruit production and lower fruit set and fruit drop, however it was the only one with the highest percentage (52%) of fruit diameter greater than 60 mm. Average fruit diameter was similar for Vertical Axis, Solaxe and Tatura (50.1, 50.2 and 48.3 mm) and statistically different for the Palmette system (53.6 mm). Highest values of TSS of the fruits were observed for the Palmette (12.1%) and Tatura (11.7%) and lowest for the vertical axis (11.6%) and Solaxe systems (11.2%). Prohexadione-calcium (150 gha-1) did not have an effect on the number, length and diameter of crowned brindles; the observed differences were due to the training systems. In the 5th year, the orchard has had positive net income, not considering fruit size and TSS, the most profitable is the Vertical Axis and the less profitable is the Palmette system.
18
Comporta, Ana Sofia Ferreira. "Sistemas de condução em pereira Rocha. Análise produtiva, qualitativa e económica." Master's thesis, ISA, 2010. http://hdl.handle.net/10400.5/6561.
Full textAbstract:
Mestrado em Engenharia Agronómica - Hortofruticultura e Viticultura - Instituto Superior de AgronomiaWith the aim of evaluating production, qualitative and economic aspects of four training systems during 2010, at Peral, Cadaval, 4-yr-old ‗Rocha‘ pear trees (Pyrus communis L.) grafted on Sydo and trained as vertical axis (1.0 x 4.0 m), open tatura trellis (0.8 x 4 m), palmette (1.2 x 4.0 m) and solaxe (1.0 x 4.0 m) were monitored. The highest canopy volume and the lower pruning weight were recorded in the tatura system. No significant differences were observed among systems concerning flower bloom and fruit setting. Production in 2010 was 54.0, 53.7, 54.9 e 38.2 tones.ha-1 for tatura, vertical axis, solaxe and palmette, respectively. The vertical axis was the system with the highest percentage (81.2%) of fruits with diameter > 70 mm and 60-70 mm. Considering cumulative yields and installation and production cost, from the plantation to the 4th year, the net return was -698 €.ha-1, -4501 €.ha-1, -6749 €.ha-1 and -476 €.ha-1 for the vertical axis, tatura, plamette and solaxe, respectively.
19
Poulos, Jesse M. "Interspecific interactions between Penstemon palmeri and shrubs in the arid shrublands of the Spring Mountains, Nevada." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/1966.
Full textAbstract:
A project involving shrub removal was undertaken by the United States Forest Service in the Spring Mountains National Recreation Area (SMNRA) to reduce accumulated woody fuels, which can pose risks to human communities. This research focuses on the interactions between shrubs and the perennial forb Palmer's penstemon (Penstemon palmeri), one of many nectar sources for the endemic Spring Mountains Acastus Checkerspot Butterfly (Chlosyne acastus ssp robusta). Initial observations revealed that P. palmeri (`penstemon') seemed to grow almost exclusively under shrubs. Such spatial associations are often indicative of a history of positive interactions between plants, and led to the research presented here. These studies investigate and discuss the interactions between this penstemon and shrubs in the arid shrublands of the SMNRA. Spatial patterns between populations of penstemon and shrubs were measured during November 2008-May 2011, and the consequences of shrub-association for individual penstemon emergence, survival, growth, and reproduction were documented (Chapter 2). The results suggest that although shrubs reduced penstemon emergence, they increased seedling survival (a seed-seedling conflict) resulting in a strong shift toward association between shrubs and penstemon over time. Further, while no differences in growth were detected between microhabitats, the results suggest that shrubs inhibited P. palmeri flowering but improved the successful maturation of fruits when flowering occurred. The mechanisms driving these patterns were elusive, but seed-sowing and seedling transplant experiments suggested that shrub soils, rather than their canopies, alter the nature of seed-seedling conflicts in a way that may promote seed-bank persistence in penstemon populations (Chapter 3). To provide a detailed description of the reproductive response of penstemon to shrubs, structural equation modeling was used to describe the importance of shrubs for penstemon seed production (Chapter 4). The results suggest that competition with shrubs reduced penstemon seed production, but that shrubs simultaneously facilitated penstemon water balance and altered the foraging behavior of its pollinators, indirectly increasing seed production. I conclude by discussing the importance of these studies, and studies of plant interactions in general, for helping land managers balance the objectives of fuel load reduction with protecting desirable species (Chapter 5).
20
Gershon, Alan Lawrence. "Multi-scale mechanical characterization and modeling of hierarchically-structured materials synthetic nano-enhanced polymers and natural palmetto wood /." College Park, Md.: University of Maryland, 2009. http://hdl.handle.net/1903/9474.
Full textAbstract:
Thesis (Ph. D.) -- University of Maryland, College Park, 2009.Thesis research directed by: Dept. of Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
21
Küpper, Anita, Harish K. Manmathan, Darci Giacomini, Eric L. Patterson, William B. McCloskey, and Todd A. Gaines. "Population Genetic Structure in Glyphosate-Resistant and -Susceptible Palmer Amaranth (Amaranthus palmeri) Populations Using Genotyping-by-sequencing (GBS)." FRONTIERS MEDIA SA, 2018. http://hdl.handle.net/10150/627054.
Full textAbstract:
Palmer amaranth (Amaranthus palmeri) is a major weed in United States cotton and soybean production systems. Originally native to the Southwest, the species has spread throughout the country. In 2004 a population of A. palmeri was identified with resistance to glyphosate, a herbicide heavily relied on in modern no-tillage and transgenic glyphosate-resistant (GR) crop systems. This project aims to determine the degree of genetic relatedness among eight different populations of GR and glyphosate-susceptible (GS) A. palmeri from various geographic regions in the United States by analyzing patterns of phylogeography and diversity to ascertain whether resistance evolved independently or spread from outside to an Arizona locality (AZ-R). Shikimic acid accumulation and EPSPS genomic copy assays confirmed resistance or susceptibility. With a set of 1,351 single nucleotide polymorphisms (SNPs), discovered by genotyping-by-sequencing (GBS), UPGMA phylogenetic analysis, principal component analysis, Bayesian model-based clustering, and pairwise comparisons of genetic distances were conducted. A GR population from Tennessee and two GS populations from Georgia and Arizona were identified as genetically distinct while the remaining GS populations from Kansas, Arizona, and Nebraska clustered together with two GR populations from Arizona and Georgia. Within the latter group, AZ-R was most closely related to the GS populations from Kansas and Arizona followed by the GR population from Georgia. GR populations from Georgia and Tennessee were genetically distinct from each other. No isolation by distance was detected and A. palmeri was revealed to be a species with high genetic diversity. The data suggest the following two possible scenarios: either glyphosate resistance was introduced to the Arizona locality from the east, or resistance evolved independently in Arizona. Glyphosate resistance in the Georgia and Tennessee localities most likely evolved separately. Thus, modern farmers need to continue to diversify weed management practices and prevent seed dispersal to mitigate herbicide resistance evolution in A. palmeri.
22
Penugonda, Kavitha. "Determination of bioavailable iron and vitamin A in fortified blended foods and fatty acids and phytosterols in saw palmetto supplements." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/20603.
Full textAbstract:
Doctor of PhilosophyDepartment of Human Nutrition
Brian Lindshield
Fortified blended foods (FBFs), in particular, corn-soybean blend (CSB), are food aid commodities widely used in infant and young children supplementary feeding programs. A United States Agency for International Development (USAID) Food Aid Quality Review report recommended developing novel FBFs using local alternative commodities such as sorghum and improving the nutritional quality of FBFs using extrusion processing. Extruded sorghum-cowpea, sorghum-soy and corn-soy FBFs were developed and compared with the non-extruded FBFs corn-soy blend 13 (CSB13) and corn-soy blend plus (CSB+) using the in-vitro digestion/Caco-2 cell model. Dry FBFs’ iron and vitamin A content ranged from 8.0 to 31.8 mg/100g and 0.54 to 1.67 mg/100g, respectively. Following in-vitro digestion, bioavailable iron and vitamin A levels were determined by measuring Caco-2 cell ferritin and vitamin A levels in response to 12-hour and 4-hour treatments, respectively, with aqueous fractions collected from digested FBFs. Most extruded FBFs’ aqueous fraction iron levels were 2- to 7-fold higher (p<0.05) than CSB13 and CSB+. However, Caco-2 cell ferritin and vitamin A levels were not significantly different among FBFs. These results suggest that consumption of newly developed extruded sorghum-cowpea, sorghum-soy and corn-soy FBFs will result in bioavailable iron and vitamin A levels comparable to traditional non-extruded CSB13 and CSB+. Thus, extruded sorghum-cowpea FBF may be a suitable alternative to corn-soybean based FBFs. Saw palmetto supplements are one of the most commonly consumed products by men with prostate cancer and/or benign prostatic hyperplasia (BPH). Some studies have found significant improvements in BPH with saw palmetto supplementation, whereas others found no benefits. The variation in the efficacy in these trials may be a result of differences in the putative active components, fatty acids and phytosterols, of the saw palmetto supplements. We quantified fatty acids and phytosterols in 20 commercially available liquid, powder, dried berry, and tincture saw palmetto supplements. Liquid saw palmetto supplements contained significantly higher (p<0.05) concentrations of total fatty acids (908.5 mg/g), individual fatty acids, total phytosterols (2.04 mg/g), and individual phytosterols, than the other supplement categories. Our findings suggest that liquid saw palmetto supplements may be the best choice for individuals who want to take a saw palmetto supplement.
23
Coccoli, Velia. "GLI ARCHETIPI. Individuazione ed approfondimento dei significati e dei valori degli archetipi in quanto radici dei beni culturali del territorio." Doctoral thesis, Università di Catania, 2016. http://hdl.handle.net/10761/3810.
Full textAbstract:
Gli archetipi fino ai primi decenni del 1900 hanno rappresentato per lungo tempo un riferimento certo, una condizione, per le generazioni che si sono succedute, per poter intervenire nel territorio/ambiente. Infatti prima dell avvento del Razionalismo, la metodologia d intervento portava a leggere e a conoscere il luogo prima di progettare e di realizzare. Si usavano pochi materiali naturali, con l uso di regole sicure e consolidate, l architettura esprimeva valori con le forme e le tecniche.
La ricerca si prefigge l obiettivo di riprendere gli archetipi, di analizzarli, comprenderli e riproporli, in modo da tutelare il patrimonio storico-artistico nel contesto regionale, analizzandone la formazione e la diffusione in riferimento al territorio, esaminandone le caratteristiche culturali e tecniche.
Ritornare alla valorizzazione degli archetipi è una meta finalizzata a difendere il patrimonio storico-artistico-culturale del territorio, da cui derivare proposte di intervento.
Detta metodologia porta immediatamente alla riflessione su come vogliamo il paesaggio del domani, ci fa riflettere su come lo volevano e rispettavano gli antenati, come è stato trasformato da chi ha dimenticato per tanti anni il valore del paesaggio.
Riprendere le idee-metodi degli antenati, è un modo per analizzarci e ripercorrere la strada indicata dalle opere realizzate, dopo la desolazione, paesi e città distrutte. Tutto da riesaminare per evitare danneggiamenti, che hanno portato non solo alla cementificazione, all omologazione, ma anche alla distruzione del paesaggio e di tutta la sua memoria amata dai grandi che ci hanno preceduto.
24
Hirschbrunn, Nina [Verfasser], and Karin [Akademischer Betreuer] Tebben. ""Man wandelt nicht ungestraft unter Palmen." Die Semantik des Raumes bei Theodor Fontane / Nina Hirschbrunn ; Betreuer: Karin Tebben." Heidelberg : Universitätsbibliothek Heidelberg, 2018. http://d-nb.info/1177149427/34.
Full text
25
Villanueva, Huerta Claudia Cecilia. "Biosorción de Cobre (II) por biomasa pretratada de cáscara de citrus sinensis (naranja), citrus limonium (limón) y opuntia ficus (palmeta de nopal)." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2007. https://hdl.handle.net/20.500.12672/2112.
Full textAbstract:
En el presente trabajo se ha investigado la biosorción de Cu (II) por las biomasas pretratadas de cáscara de citrus sinensis (naranja), citrus limonium, (limón) y opuntia ficus (palmeta de nopal). Las biomasas fueron tratadas con cloruro de calcio, el cual les da una mayor estabilidad mecánica al material bioadsorbente.
Los experimentos sobre el efecto del pH en el proceso de biosorción de Cu (II) por los materiales biosorbentes mostraron que el rango óptimo de pH se encuentra entre 4,5 - 5,0. Los datos experimentales obtenidos se procesaron usando las ecuaciones adsorción de Langmuir y Freundlich. La máxima capacidad de biosorción de Cu (II) por las biomasas fueron: 36,1011 mg/g para la cáscara de citrus sinensis; 47,0436 mg/g para cáscara de citrus limonium y 44,2567 mg/g para el opuntia ficus.-- In the present work we had studied the biosorption of Cu (II) by treated biomasses of citrus sinensis (orange) shells, citrus limonium (limón) and opuntia ficus (palmeta de nopal). The biomasses were treated with CaCl2, that which allows improving the mechanical stability of the biomasses. The optimum pH for the process of biosorción of Cu (II) for the treated biomasses was among 4,5-5,0. The results experimental data were processed according the equations of Langmuir and Freundlinch. The maximum capacities of adsorption (qmáx) of the treated biomasses were: shell of citrus sinensis 36, 1011 mg/g, citrus limonium 47, 0436 mg/g and citrus limonium 44, 2567 mg/g.
Tesis
26
Petrosino, Justin Scott. "Response of weeds to the intensification of Kansas No-Till crop rotations with cover cropping." Thesis, Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/4095.
Full text
27
Bresdin, Cylphine. "Agronomy of Halophytes as Constructive Use of Saline Systems." Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/577318.
Full textAbstract:
Extensive coastal sabkhas in the northern Gulf of California in North America are colonized by Distichlis palmeri, an endemic perennial grass that produces a grain that was harvested as a staple food by native Cocopah people. Previous short-term trials have shown good vegetative growth but low grain yields. During outdoor trials under anaerobic saline soil conditions of paddy-style irrigation, D. palmeri exhibited high salt tolerance, grain and biomass production. Reproductive maturity was reached four years after initial establishment of plants from seed and a 1:3 mixture of male and female plants produced 231-310 g m⁻² of grain, with nutritional content similar to domesticated grains, confirming the feasibility of developing D. palmeri as a perennial grain and biomass crop for salinized soils and water supplies. Salicornia bigelovii Torr., a cosmopolitan annual coastal marsh succulent, produces seed with high oil content and has been suggested as a potential cash crop for fuel production from saline irrigation but its domestication and development into a cost effective commodity has been slow. A breeding and selection program for agronomic traits that will provide multiple landscape and ecosystem services that could enhance cost benefits of the agronomy of S. bigelovii was initiated during a two year period while producing seed for a pilot system at the Masdar Institute in Abu Dhabi, U.A.E. A concept for a saline landscape designed to consume and concentrate saline waste streams was developed and demonstrates the feasibility and potential to support agronomy of halophytes within a built landscape ecology akin to coastal marsh systems. Exploration and development of potential services halophytes could provide and field testing of selected halophytes for their potential to produce food, fuel, fiber and habitat under designed and managed domestication in our salinized soils with saline waste irrigation needs our continued investigation.
28
Netto, Acácio Gonçalves. "Crescimento e desenvolvimento, resistência múltipla aos herbicidas inibidores da EPSPS-ALS e alternativas em pós-emergência para controle de Amaranthus palmeri (S.) Wats." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-25042017-183630/.
Full textAbstract:
Em 2015, o caruru palmer (Amaranthus palmeri) foi identificado pela primeira vez no Brasil, na região do núcleo algodoeiro do estado de Mato Grosso, em áreas normalmente cultivadas com rotação das culturas de algodão, soja e milho. Esta espécie possui reconhecida importância internacional, no entanto, não se conhece seu comportamento biológico nos sistemas de produção brasileiros. Ainda, também é desconhecido o grau de suscetibilidade do biótipo introduzido no país aos herbicidas, principalmente ao glyphosate e inibidores da ALS, que são os principais herbicidas utilizados para seu controle em outros países. Deste modo, este trabalho foi desenvolvido com o objetivo de caracterizar o crescimento e desenvolvimento do biótipo de A. palmeri originário do Estado do Mato Grosso, em condição de casa-de-vegetação; caracterizar o nível de resistência deste biótipo ao herbicida glyphosate (inibidor da EPSPS); verificar a existência de resistência múltipla EPSPS-ALS, bem como resistência cruzada entre os grupos químicos dos herbicidas inibidores da ALS; além de testar herbicidas alternativos aplicados em condição de pós-emergência da planta daninha. O biótipo brasileiro de A. palmeri teve rápido desenvolvimento fenológico, com início de emissão de inflorescências aos 50 dias após semeadura; o desenvolvimento fenológico de A. palmeri teve ajuste linear conforme equação y =0,8866.x; o biótipo teve acúmulo máximo de 45 g planta-1, com pico de crescimento absoluto aos 60 DAS; o crescimento da espécie foi considerado moderado quando comparado às espécies nacionais de Amaranthus, bem como aos dados internacionais de A. palmeri. Quanto aos herbicidas inibidores da EPSPS, pôde-se concluir com segurança tratar-se de biótipo resistente ao herbicida glyphosate. Ainda, constatou-se resistência múltipla aos inibidores da EPSPS-ALS. Considerando-se somente os inibidores da ALS, trata-se de população com resistência cruzada entre sulfoniluréias - triazolopirimidinas - imidazolinonas. Estas plantas foram adequadamente controladas pelos seguintes tratamentos herbicidas (g ha-1): fomesafen a 250, lactofen a 168, mesotrione + atrazina a 120 + 1.500, tembotrione + atrazina a 75,6 + 1.500, amônio glufosinato a 400 e paraquat a 400 g i.a. ha-1. O estádio de aplicação de 2 a 4 folhas, com até 5 cm de altura, é o mais indicado para o controle da planta daninha.In 2015, Palmer amaranth (Amaranthus palmeri) was firstly identified in Brazil, at the cotton nucleus region of the State of Mato Grosso, in areas usually maintained under cotton, soybean and corn crop rotation. This species has recognized importance worldwide, however its biological behavior in Brazilian cropping systems is unknown. In addition, it is also unknown the degree of herbicide susceptibility of the biotype introduced in the country, mainly its susceptibility to glyphosate and ALS inhibiting herbicides, that are the main products used to control this species in other countries. Therefore, this work was developed with the objective of characterizing growth and development of the A. palmeri biotype collected in the state of Mato Grosso, Brazil, under greenhouse condition; verifying the resistance level of this biotype to glyphosate (EPSPS inhibiting herbicide); verifying the existence of EPSPS-ALS multiple resistance, as well as crusade resistance between chemical groups of ALS-inhibiting herbicides; testing alternative herbicides for post-emergence control of this weed. Brazilian biotype of A. palmeri had fast phenological development, with beginning of flowering at 50 days after seeding. Species phenology was adjusted to the linear equation y =0,8866.x. In average, the maximum dry matter accumulated was 45 g plant-1, with edge of absolute growth at 60 DAS. In conclusion, growth parameters of the Brazilian biotype of A. palmeri were considered moderated when compared to national species of Amaranthus, as well as with international data of A. palmeri. Regarding to EPSPS inhibiting herbicides, it was possible to conclude that Brazilian biotype of A. palmeri is glyphosate resistant. Therefore, multiple resistance to EPSPS-ALS inhibiting herbicides was also identified. Considering exclusively ALS-inhibiting herbicides, this population has sulfonilurea-triazolopirimidine-imidazolinone crusade resistance. Plants were adequately controlled with the following herbicides (g ha-1): fomesafen at 250, lactofen at 168, mesotrione + atrazine at 120 + 1,500, tembotrione + atrazine a 75.6 + 1,500, ammonium-glufosinate at 400 and paraquat at 400. Phenological stage of 2 to 4 leaves, with up to 5 cm of height, was the most indicated to Palmer amaranth control.
29
Scruggs, Eric Brandon. "Control and Fecundity of Palmer Amaranth (Amaranthus palmeri) and Common Ragweed (Ambrosia artemisiifolia) from Soybean Herbicides Applied at Various Growth and Development Stages." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/98467.
Full textAbstract:
Palmer amaranth (Amaranthus palmeri) and common ragweed (Ambrosia artemisiifolia) are two
of the most troublesome weeds in soybean. Both weeds possess widespread resistance to
glyphosate and acetolactate synthase (ALS) inhibiting herbicides resulting in the use of
protoporphyrinogen oxidase- (PPO) inhibitors to control these biotypes, although PPO-resistant
biotypes are increasing. New soybean herbicide-resistant trait technologies enable novel
herbicide combinations. Combinations of two herbicide sites-of-action (SOA) improved control
19 to 25% and 14 to 19% of Palmer amaranth and common ragweed, respectively, versus using
one SOA (mesotrione, dicamba, 2,4-D, or glufosinate alone). Seed production of 5 to 10 cm
Palmer amaranth and common ragweed was reduced greater than 76% by fomesafen, auxin
(dicamba and 2,4-D), or glufosinate containing treatments. Some weeds survived and set seed
even when treated at the proper size. As weed size increased from 10 to 30 cm, control
diminished and fecundity increased, underscoring the importance of proper herbicide application
timing. Effective preemergence herbicides reduced the number of weeds present at the
postemergence application compared to no treatment, reducing the likelihood of herbicide
resistance development. Dicamba, 2,4-D, or glufosinate applied alone or auxin + glufosinate
combinations reduced Palmer amaranth seed production greater than 95% when applied at first
visible female inflorescence; this first report, in addition to previous reports on individual
herbicides, indicates this application timing may be useful for soil seed bank management. This
research informs mitigation of herbicide resistance spread and development.Master of Science in Life Sciences
Over 30 million hectares of soybeans were harvested in 2019 in the United States, totaling over $31 billion in value. Two of the most troublesome weeds in soybean, Palmer amaranth (Amaranthus palmeri) and common ragweed (Ambrosia artemisiifolia) can cause even greater yield reductions in soybean, up to 79 to 95%, respectively. Frequent, exclusive, and repeated use of a single herbicide has led to multiple herbicide-resistance in both of these weeds. Co-applying two effective herbicides reduces the likelihood of resistance development. New soybean varieties have been genetically modified for resistance to herbicides that were previously unusable, allowing new herbicide combinations. Research was established to investigate these herbicide options to control and reduce seed production of Palmer amaranth and common ragweed with the overarching goal of mitigating herbicide resistance, particularly resistance to protoporphyrinogen oxidase (PPO) inhibiting herbicides, which are a critical part of herbicide options in soybean production. Preemergence herbicides are vital tools in herbicide programs, reducing the number of weeds present at a postemergence application and thereby reducing the risk of herbicide resistance development to the postemergence herbicide. PPO herbicides (flumioxazin, sulfentrazone, or fomesafen) applied preemergence reduced Palmer amaranth and common ragweed density at the postemergence application 82 to 89% and 53 to 94%, respectively. The preemergence herbicide used did not affect control four weeks after the postemergence herbicides were applied. Postemergence herbicides were applied targeting three weed heights: 5 to 10 cm (ideal), 10 to 20 cm, and 20 to 30 cm. Control decreased as weed height increased and larger weeds had greater biomass and seed production, underscoring the importance of proper herbicide application timing. The single site-of-action treatments dicamba, 2,4-D, glufosinate, or fomesafen resulted in greater than 85 and 92% morality of 5 to 10 cm Palmer amaranth and common ragweed, respectively. Palmer amaranth and common ragweed control improved by 19 to 25% and 14 to 19%, respectively, when using two herbicide sites-of-action increased versus using one SOA (mesotrione, dicamba, 2,4-D, or glufosinate alone). The use of two herbicide sites of action resulted in maximum biomass reductions, depending on weed height, of 57 to 96% and 73 to 85% for Palmer amaranth and common ragweed, respectively. Dicamba, 2,4-D, glufosinate alone and in combination with fomesafen reduced seed production (relative to the nontreated) of 5 to 10 cm Palmer amaranth and common ragweed greater than 98 and 76%, respectively. Dicamba, 2,4-D, and glufosinate applied alone or auxin (dicamba and 2,4-D) and glufosinate combinations reduced Palmer amaranth seed production greater than 95% when applied at first visible female inflorescence. This indicates that these herbicides may be useful in soil weed seed bank management. This research reinforces the utility of PPO herbicides for preemergence control and their efficacy postemergence when combined with another effective herbicide, a practice known to reduce herbicide resistance development. This research also reinforces the potential for dicamba, 2,4-D, or glufosinate to reduce weed seed production when applied at a delayed timing. Future research should investigate the progeny of these weeds treated with herbicides at a delayed timing to evaluate the potential for this practice to reduce herbicide resistance development.
30
Opoku-Acheampong, Alexander Boadu. "Effect of 5[alpha]-reductase inhibitors on LNCaP cells, Syrian hamster flank organs, and TRAMP mice prostate cancer." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/20352.
Full textAbstract:
Doctor of PhilosophyDepartment of Human Nutrition
Brian L. Lindshield
The growth-inhibitory effect of saw palmetto supplements (SPS) with high long-chain fatty acids (FA)-low phytosterols (HLLP), high long-chain FA-high phytosterols (HLHP), and high medium-chain FA-low phytosterols (HMLP) was determined using androgen-sensitive LNCaP prostate cancer (PCa) cells and Syrian hamster flank organs. In vitro, all three SPS at high concentrations significantly decreased dihydrotestosterone-stimulated LNCaP cell number. HMLP and HLLP at high concentrations significantly decreased, but HLHP which significantly increased testosterone-stimulated LNCaP cell number. In Syrian hamsters, all three SPS treatments caused notable, but nonsignificant reduction in the difference between the left and right flank organ growth in the testosterone-, but not dihydrotestosterone-treated SPS groups. Results suggest SPS might be a mild 5-alpha-reductase (5-alpha-R) inhibitor. The pharmaceuticals finasteride inhibits 5-alpha-R2, and dutasteride inhibits 5-alpha-R1 and 5-alpha-R2 isoenzymes. Because finasteride inhibits only 5-alpha-R2, we hypothesized that it would not be as efficacious in preventing PCa development and/or progression in TRAMP mice as dutasteride. Six-week-old C57BL/6 TRAMP x FVB male mice were randomized to control, pre- and post- finasteride and dutasteride diet groups that began at 6 and 12 weeks of age, respectively, and terminated at 20 weeks of age. Pre and post groups received drugs before and after mice were expected to develop PCa, respectively. Post-Dutasteride treatment was significantly more effective than Pre-Dutasteride; and dutasteride treatments significantly more effective than finasteride treatments in decreasing prostatic intraepithelial neoplasia progression and PCa development. The finasteride groups and the Pre-Dutasteride group had significantly increased incidence of poorly differentiated PCa versus control. Androgen receptor and Ki-67 protein, DNA fragmentation from apoptosis, 5-alpha-R1 and 5-alpha-R2 mRNA levels were determined in mice with genitourinary weight less than 1 gram and greater than 1 gram to elucidate the discordant response in Pre-Dutasteride and finasteride groups, and Post-Dutasteride’s efficacy. Results suggest the difference in genitourinary weights is influenced more by proliferation, rather than androgen receptor and apoptosis in tumor. Mice age may not be significantly important in regulating proliferation, androgen receptor and apoptosis to promote tumor growth. In conclusion, the results with 5-alpha-reductase inhibitors may support the therapeutic use of dutasteride, but not finasteride, or saw palmetto supplements.
31
Jarvis, Martin D. "An investigation into some aspects related to the phytoremediation potential of Pinus radiata (D. Don) & Chamaecytisus proliferus (L.f.) Link ssp. proliferus var. palmensis (H. Christ.)." Thesis, University of Canterbury. Plant and Microbial Sciences, 2001. http://hdl.handle.net/10092/5884.
Full textAbstract:
Both Pinus radiata and Chamaecytisus palmensis were inducted into tissue culture. In vitro clonal shoots were generated from cotyledon-derived meristematic cultures of P. radiata. Attempts were made to induce shoot organogenesis in C. palmensis explants, on solid media supplemented with a range of plant growth regulators. In vitro clonal shoots of C. palmensis were generated from seedling explants.
The potential for Pb phytoextraction was investigated in seedlings and clones of P. radiata and C. palmensis. Aspects of tolerance, uptake, and translocation of Pb were studied within each species and in comparison to each other. Effects of Pb on different aspects of plant growth were examined including inhibition of seed germination, root growth inhibition, fresh weight changes of in vitro tissue, and responses of seedlings and excised shoots in solution culture. Both P. radiata and C. palmensis were insensitive to Pb during seed germination. Pb inhibited formation of lateral roots and inhibited root and shoot elongation in P. radiata seedlings. C. palmensis displayed greater tolerance to Pb than P. radiata during early seedling growth.
Plants growing in hydroponic culture were exposed to Pb(N0₃)2, with and without the addition of the chelating agents H-EDTA and EDTA. Subsequently treated materials were examined for Pb uptake by flame atomic absorption spectrometry. Both P. radiata and C. palmensis accumulated unchelated Pb predominantly in root tissue, while Pb, in the presence of H-EDTA or EDTA, was taken up principally by the shoots in both species.
With transmission electron microscopy, ultrastructural observations were carried out on ultra-thin sections, derived from tissues treated with Pb in the presence and absence of chelators, from both P. radiata and C. palmensis. In P. radiata, Pb was deposited in cell walls in root tissues; and in intercellular spaces in shoot tissues. In C. palmensis, Pb was found in cell walls, bacteroids and mitochondria in root nodule tissue; in middle lamellae and intercellular spaces in root tissues; and in chloroplasts, pit membranes, and plasmodesmata in shoot tissues.
When acid phosphatase activity, in response to Pb exposure, was examined in both species, no substantial differences were found with regard to treatment but some evidence was found of differences in response among P. radiata clones. No new isozymes of acid phosphatase were found in C. palmensis in response to Pb but evidence was found that root isozyme activity increased in response to unchelated Pb.
32
Palmen, Hannes [Verfasser]. "Eigenbedarfsähnliche Kündigungsgründe und vermietende Gesellschaften : Ein Beitrag zur Systematik eigenbedarfsähnlicher Kündigungsgründe im Wohnraummietrecht unter besonderer Berücksichtigung von vermietenden Gesellschaften / Hannes Palmen." Baden-Baden : Nomos Verlagsgesellschaft mbH & Co. KG, 2021. http://d-nb.info/1227803605/34.
Full text
33
Hay, Marshall Mark. "Control of Palmer amaranth (Amaranthus palmeri) and common waterhemp (Amaranthus rudis) in double crop soybean and with very long chain fatty acid inhibitor herbicides." Thesis, Kansas State University, 2017. http://hdl.handle.net/2097/35489.
Full textAbstract:
Master of ScienceDepartment of Agronomy
Dallas E. Peterson
During 2015 and 2016, five site years of research were implemented in double crop soybean after winter wheat at experiment fields in Kansas near Manhattan, Hutchinson, and Ottawa to assess various non-glyphosate herbicide treatments at three different application timings for control of Palmer amaranth (Amaranthus palmeri S. Wats.) and common waterhemp (Amaranthus rudis Sauer). Spring-post (SP) treatments with residual control of Palmer amaranth and waterhemp were applied in the winter wheat at Feekes 4 and resulted in less than 50% control of Palmer amaranth and waterhemp at the time of double crop soybean planting. Pre-harvest treatments were applied two weeks before winter wheat harvest. 2,4-D resulted in highly variable Palmer amaranth and waterhemp control whereas flumioxazin resulted in comparable control to PRE treatments that contained paraquat plus a residual herbicide. Excellent Palmer amaranth and waterhemp control was observed at 1 week after planting (WAP) double crop soybean with a preemergence (PRE) paraquat application; however, reduced control of Palmer amaranth and waterhemp was noted at 8WAP due to extended emergence. Palmer amaranth and waterhemp control was 85% or greater at 8WAP for most PRE treatments that included a combination of paraquat plus residual herbicides. PRE treatments that did not include the combination of paraquat and residual herbicides did not provide acceptable control. A second set of field experiments were established in 2015 and 2016 near Manhattan, Hutchinson, and Ottawa to assess residual Palmer amaranth and waterhemp control with very-long-chain-fatty acid (VLFCA) inhibiting herbicides. Acetochlor (non-encapsulated and encapsulated), alachlor, dimethenamid-P, metolachlor, S-metolachlor, and pyroxasulfone as well as the microtubule inhibiting herbicide pendimethalin were applied at three different field use rates (high, middle, and low) based on labeled rate ranges for soybean as PRE treatments in a non-crop scenario after the plot was clean tilled with a field cultivator. The experiment was conducted one time in 2015 and four times in 2016 at two different locations for a total of five site years of data. PRE applications were made June 1, 2015, near Manhattan. PRE applications in 2016 were made in April at locations near Hutchinson and Ottawa; the second run of the experiment was applied in June at the same locations on a different set of plot areas. At Manhattan pyroxasulfone, S-metolachlor, and dimethenamid-P resulted in the highest Palmer amaranth control at 4WAT. At Hutchinson, pyroxasulfone resulted in superior Palmer amaranth control compared to dimethenamid-P and pendimethalin at 4WAT and 8WAT. At Ottawa, acetochlor, S-metolachlor, and pyroxasulfone resulted in higher waterhemp control than alachlor and pendimethalin at 4WAT and 8WAT.
34
Heydenrych, Barry. "A test of the nitrogen-fixing ability of three agroforestry tree legumes, Tagasaste (Chamaecytisus palmensis), Port Jackson (Acacia saligna) and Sesbania sesban, when inoculated with three rhizobial strains." Thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/26124.
Full text
35
Borgato, Ednaldo Alexandre. "Identificação de Amaranthus palmeri, caracterização da resistência múltipla a herbicidas inibidores da ALS e da EPSPS e controle químico baseado no uso das novas tecnologias transgênicas." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-16052018-125757/.
Full textAbstract:
A planta daninha Amaranthus palmeri é nativa dos Estados Unidos, porém foi pela primeira vez relatada no Brasil no ano de 2015. Embora comprovadamente com resistência múltipla aos herbicidas inibidores da ALS e da EPSPS, até o momento não foram investigadas as bases moleculares da resistência. Além disso, por causa da recente introdução da planta daninha no país, alternativas de manejo com culturas tolerantes a herbicidas necessitam ser estudadas. Sendo assim, os objetivos desse trabalho são de caracterizar a espécie de planta daninha introduzida no país, identificar os mecanismos de resistência aos herbicidas inibidores da ALS e da EPSPS presentes no biótipo, e propor abordagens de manejo em ambientes dos novos eventos transgênicos resistentes a herbicidas. Um bioensaio utilizando marcadores genéticos foi desenvolvido para confirmar que a população coletada no estado do Mato Grosso (BR-R) é A. palmeri, e não A. tuberculatus, outra espécie dióica do gênero Amaranthus. Os resultados de experimentos de curvas de dose-resposta e acúmulo de chiquimato indicaram que a BR-R possui alto nível de resistência, com DL50 de 4.426 e 3.400 g glyphosate ha-1 no primeiro e segundo experimento, respectivamente, mais que o dobro da dose típicamente recomendada para o controle da espécie e, adicionalmente, observou se acúmulo mínimo de chiquimato a concentração de 1 mM nos tecidos das plantas tratadas com o herbicida. BR-R também foi resistente a herbicidas dos grupos químicos das sulfoniluréias e imidazolinonas. O mecanismo de resistência ao glyphosate encontrado nesta população foi a super expressão gência, através do aumento no número de cópias do gene da EPSPS no genoma da planta BR-R, entre 50 e 179 cópias adicionais. Além disso, duas substituições de aminoácidos foram observadas na sequência da ALS, W574L e S653N, conferindo resistência tanto a sulfoniluréias quanto a imidazolinonas. No experimento utilizandos os herbicidas correspondentes às culturas geneticamente modificadas com novos traits de tolerância a herbicidas observou se, de uma forma geral, que as associações de herbicidas apresentaram níveis de controle mais satisfatórios. Assim, esta pesquisa confirma a introdução de da espécie A. palmeri no Brasil, assim como a resistência múltipla aos herbicidas inibidores da EPSPS e da ALS. Seu manejo é mais eficaz através da associação de herbicidas, garantindo assim o uso racional das novas tecnologias de culturas geneticamente modificadas com tolerância a herbicidas.Palmer Amaranth (Amaranthus palmeri) is a weed species native to the United States, but it was reported in Brazil for the first time in 2015. Despite this population being resistant to EPSPS and ALS inhibitors, the molecular basis of its multiple resistance is unknown up to date. Because of this species introduction to Brazil, alternatives of management with the new herbicide-tolerant crops technologies need to be studied. The objectives of this research are to characterize the weed species introduced to Brazil, identify the mechanisms conferring resistance to ALS and EPSPS inhibitors herbicides, and to propose management approaches in environments with the new genetically modified herbicide-tolerant crops. A genotyping bioassay using genetic markers was developed to confirm that the species collected in the state of Mato Grosso (BR-R) is indeed A. palmeri and not A. tuberculatus, another dioceous species in the Amaranthus genus. Dose-response experiments and shikimate accumulation bioassay data indicate high level of resistance, with LD50 of 4,426 and 3,400 g glyphosate ha-1 in the first and second experiments, respectively, higher than the double rate tipically recommended to control it, and minimal accumulation in BR-R with 1 mM of glyphosate in treated plants in the leaf disks assay. BR-R also was resistanto to sulfonilurea and imidazolinone herbicides. The mechanism conferring resistance to glyphosate identified in this population was gene amplification, with increased EPSPS copy number - between 50 and 179 more copies in BR-R. Besides, two target-site mutations were identified in the ALS gene sequencing, W574L and S653N, conferring resistance to sulfonilureas and imidazolinones. The weed control experiment, overal, herbicide tank mixtures achieved higher levels of control. Therefore, this research confirms the introduction of A. palmeri to Brazil, as well as its multiple resistance to EPSPS and ALS inhibitor herbicides. Its control is more efficient with herbicide mixtures, which guarantees more susteinable use of the new herbicide-tolerant crop technologies.
36
Silva, Virgínia Eduarda Monteiro da. "Potencial terapêutico de extratos de plantas medicinais em hiperplasia benigna da próstata." Master's thesis, [s.n.], 2015. http://hdl.handle.net/10284/5171.
Full textAbstract:
Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Ciências FarmacêuticasAs doenças da próstata, tais como, a prostatite, a hiperplasia benigna da próstata e o cancro da próstata, apresentam grande relevância clínica pela alta frequência com que ocorrem no quotidiano e pelas consequências que provocam. A Fitoterapia é uma terapêutica não convencional que tem vindo, ao longo das últimas décadas, a despertar o interesse da comunidade geral e científica, nomeadamente pelo seu possível papel na prevenção e tratamento das doenças da próstata, bem como consequência da insatisfação dos pacientes com os efeitos adversos das alternativas médicas, e pela facilidade de acesso e custo deste tipo de tratamento. São inúmeras as plantas com ação promissora, que podem ser utilizadas no âmbito das doenças prostáticas, algumas delas de uso tradicional ao longo dos séculos. A informação transmitida aos consumidores deve ser sustentada através de estudos clínicos que demonstrem o seu potencial terapêutico, devidamente apoiado em evidências científicas, para a qual os profissionais de saúde devem estar devidamente capacitados. Os extratos de plantas são amplamente utilizados em diversos países, contudo, a sua ação não está totalmente esclarecida, pelo que revisões recentes têm lançado dúvidas sobre os benefícios do seu potencial terapêutico, fundamentando-os com estudos clínicos atualmente disponíveis. O presente trabalho de revisão bibliográfica, fornece uma visão geral da evolução das doenças da próstata, assim como o impacto das plantas medicinais no tratamento destas patologias, analisando pormenorizadamente as plantas com maior impacto, abordando os seus compostos ativos, mecanismos de ação subjacentes, efeitos secundários, interações com fármacos e, por fim, a respetiva influência no tratamento. A informação disponível é ainda escassa, mas cada vez mais existe um interesse demonstrado por diversos países em desenvolver estudos nesta área. The prostate diseases such as prostatitis, benign prostatic hyperplasia and prostate cancer, have great clinical relevance for the high frequency with which they occur in daily life and by the consequences that cause. Phytotherapy is a non-conventional therapy that has been, over the past few decades, to awaken the interest of general and scientific community, in particular for his possible role in the prevention and treatment of prostate diseases, as well as a result of the dissatisfaction of patients with adverse effects of medical alternatives, and the ease of access and cost of this type of treatment. There are many plants with promising action that can be used in the context of prostatic diseases, some of them in traditional use for centuries. The information conveyed to consumers must be sustained through clinical studies that show their therapeutic potential, duly supported by scientific evidence, for which health workers must be properly trained. The plant extracts are widely used in several countries, however, their action is not completely understood, recent revisions that have thrown doubt on the benefits of its therapeutic potential, supporting them with clinical studies currently available. The present work of literature review, provides an overview of the evolution of diseases the prostate, as well as the impact of medicinal plants in the treatment of these pathologies, analysing in detail the plants with greater impact, addressing their active compounds, the underlying mechanisms of action, side effects, and interactions with drugs, and finally, the respective influence on treatment. The available information is still scarce, but increasingly there is an interest shown by many countries in developing studies in this area.
37
Suter, Andy. "New perspectives on saw palmetto (Serenoa repens) : a medico historical / analytical comparison of preparations derived from it and a clinical pilot trial in patients with benign prostatic hyperplasia and sexual dysfunctions." Thesis, University College London (University of London), 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.569065.
Full textAbstract:
Saw palmetto berries (Sereona repens) are used today for symptoms of benign prostatic hyperplasia (BPH) which is an age dependent disease leading to lower urinary tract symptoms (LUTS) and impacts negatively sexual functions (SDys). I carried out the first clinical pilot trial to assess if a saw palmetto treatment in patients with BPH symptoms and concomitant SDys is efficacious and safe on both groups of symptons. After 8 weeks of treatment with 320mg saw palmetto extract daily, the BPH symptoms assessed with the International Prostate Symptome Score IPSS were reduced from 14.4 ± 4.7 to 6.9 ± 5.2 (P < 0.0001) . At the same time SDys measured with the brief Sexual Function Inventory bSFI improved from 22.4 ± 7.2 to 31.4 ± 9.2 (P < 0.0001), and with the Urolife BPH QoL-9 questionnaire from 162.7 ± 47.9 to 105.0 ± 56.3 (P < 0.0001). The treatment was very well tolerated and accepted by the patients. Another subject of the thesis was to investigate the quality of products from 8 countries which contained saw palmetto and are sold as treatments of BPH symptoms. For each of the 46 analyzed products the amount of the main active constituent, the fatty acids was determined using gas chromatography. The quantity of fatty acids per daily dosage varied widely between the commodities and also the composition of the samples was very heterogenous. A last aspect of this thesis was to investigate how saw palmetto was historically introduced into the German speaking medical practice. The first recorded mention of saw palmetto in a German medicinal publication was in 1892. From then on saw palmetto grew more and more popular among German homeopathic doctors and was often mentioned in their publications. The homeopathic doctors were ones in the end having made saw palmetto popular as a medicinal treatment in Germany. In conclusion, this thesis shows how saw palmetto made its way into medical practice in Germany, that saw palmetto preparations on the markets differ widely in their content of active constituents and thus higher quality demands from regulatory authorities are warranted, and for the first time that saw palmetto is not only an efficacious and safe treatment for BPH symptoms but also for concomitant SDys.
38
Lokuge, Meepa A. "Tissue Culture, Genetic Transformation and Cold Tolerance Mechanisms in Cold-Hardy Palms." Miami University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=miami1165607767.
Full text
39
Palmen, Nina [Verfasser], Bettina [Gutachter] Westhoff, and Tim [Gutachter] Lögters. "Bestimmung der Lebensqualität und der dynamisch funktionellen Ergebnisse bei Kindern mit schwerem Morbus Perthes nach Containment-verbessernder Becken- und Femurosteotomie / Nina Palmen ; Gutachter: Bettina Westhoff, Tim Lögters." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2016. http://d-nb.info/1119300452/34.
Full text
40
Du, Fang. "Optimisation de l'architecture de mélanges de polymères polaires contenant des nanocharges hydrophiles : étude morphologique et rhéologique." Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL10204.
Full textAbstract:
Des mélanges ternaires immiscibles à base de PA11 et de PEO ou de PA6 et de PA11 contenant soit des argiles modifiées soit de l’argile native ont été préparés par extrusion à l’état fondu ou par extrusion assistée eau. L’effet du type d’argile et de l’injection d’eau au cours de l’extrusion sur les propriétés thermiques, rhéologiques et mécaniques a été évalué sur l’ensemble des mélanges ternaires. La microscopie électronique à transmission a mis en évidence une localisation sélective de l’argile dans la phase la moins visqueuse dans les deux mélanges, et ce quel que soit le type d’argile. Avec l’injection d’eau pendant l’extrusion, la migration d’une partie des particules d’argile de la phase moins visqueuse vers la phase plus visqueuse a été observée pour certains mélanges PA11/PEO. La prédiction théorique, basée sur le coefficient de mouillabilité selon le modèle de Sumita, ne correspond pas à la localisation observée. Plusieurs explications ont été proposées, en particulier l’influence du rapport de viscosité entre les deux phases. Les observations morphologiques par microscopie électronique à balayage ont montré l’influence de l’argile et de l’eau sur la taille de la phase dispersée. L’étude rhéologique a montré l’impact des argiles modifiées ou native sur la dégradation des polymères qui peut être limitée par l’extrusion assistée eauImmiscible ternary blends constituted of PA11 and PEO or PA6 and PA11 containing either modified or native clay were prepared by melt extrusion or by water-assisted extrusion. The effect of the type of clay and water injection during extrusion on thermal, rheological and mechanical properties has been evaluated for all ternary blends. Transmission electron microscopy highlighted a selective localization of clay in the less viscous phase in both blends, independently of the type of clay. With the injection of water during extrusion, the migration of a part of clay particles from the less viscous phase to the more viscous phase was observed for certain PA11/PEO blends. The theoretical prediction, based on the wetting coefficient according to Sumita’s model, does not correspond to the observed localization. Several explanations have been proposed, particularly the influence of viscosity ratio between the two phases. Morphological observations by scanning electron microscopy showed the influence of clay and water on the size of the dispersed phase. Rheological study revealed the impact of modified or native clay on the degradation of polymers which can be limited by water-assisted extrusion
41
Vorster, Carla. ""Hoe vertel jy op papier wie jy was en wie jy nou is?" Die konstruksie van die vroulike subjek in twee bildungsromane : annerkant die longdrop van Anoeschka von Meck en De vriendschap van Connie Palmen." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80355.
Full textAbstract:
Thesis (MA)--Stellenbosch University, 2013.ENGLISH ABSTRACT: In this study the genre-theory of the ‘female’ Bildungsroman is utilised as a theoretical lens in the analysis of Annerkant die longdrop [Beyond sanity] by Anoeschka von Meck (1998) and De vriendschap [The friendship] by Connie Palmen. Differences and similarities between these narratives of female development, in comparison to the traditional Bildungsroman and ‘female’ Bildungsroman, are identified. This procédé leads to new insights regarding the female characters and their journeys to selfhood in Annerkant die longdrop and De vriendschap. The ‘female’ Bildungsroman is distinguished from her patriarchal counterpart by the central motifs of the developing female body and sexuality which are inscribed in the discourse. These motifs and the subversion of the traditional Bildungsroman are linked with French feminists’ concept of écriture féminine. By comparing Annerkant die longdrop and De vriendschap as ‘female’ Bildungsromane and examples of écriture féminine new derivations can be made about the genre and narratives of female development. The difference between male and female development is one of the aspects highlighted when the ‘female’ Bildungsroman is utilised as theoretical lens. Furthermore the fluidity and instability of the female subject and of the texts in which she comes to life are emphasized. This study raises new questions about the development and emancipation of the female character in Afrikaans literature from 1960 onwards. Furthermore it demonstrates that the theory of the Bildungsroman opens up new research possibilities, especially regarding identity, and can be utilised in the reading of a variety of Afrikaans texts.
AFRIKAANSE OPSOMMING: Die genre-teorie van die ‘vroulike’ Bildungsroman dien in hierdie studie as primêre teoretiese bril of lens by die analise van Annerkant die longdrop (1998) deur Anoeschka von Meck en De vriendschap (1995) deur Connie Palmen. Die ontwikkeling van vroulike protagoniste in hierdie romans word met die eienskappe van beide die tradisionele Bildungsroman én die ‘vroulike’ Bildungsroman in verband gebring en vergelyk. Dié procédé bring nuwe aspekte oor die ontwikkelende vrouekarakters en ontwikkelingsreise in Annerkant die longdrop en De vriendschap na vore. Die wyse waarop die ‘vroulike’ Bildungsroman die literêre grense van die tradisionele Bildungsroman ondermyn en die ontwikkelende vroulike liggaam en seksualiteit inskryf in die diskoers, word met Franse feministe se teoretiese konsep van écriture féminine in verband gebring. Uit die vergelyking van Annerkant die longdrop en De vriendschap blyk dit dat die genre-teorie van die ‘vroulike’ Bildungsroman en die feministiese tradisie van die écriture féminine nuwe aspekte oor narratiewe van vroulike ontwikkeling na vore bring. So beklemtoon hierdie teorie byvoorbeeld die verskil tussen manlike en vroulike ontwikkeling en wys op sowel die vloeiende, onvaste aard van hedendaagse vroulike subjekte as op die tekste wat die ontwikkeling van hierdie vroulike subjekte verwoord. Nuwe vrae oor die mate waarin Afrikaanse vrouekarakters sedert die sestigerjare ontwikkel het, kan na aanleiding van hierdie studie gestel word. Verder wys die ondersoek op nuwe navorsingsmoontlikhede, veral in terme van die soeke na identiteit, wat die Bildungsroman inhou by die bestudering van die Afrikaanse literatuur.
42
Huber, John Anthony. "Exploring the Possibility of Photosynthetic Plasticity in Agave sensu lato." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/6403.
Full textAbstract:
Crassulacean acid metabolism (CAM) provides desert plants with distinct advantages over the C3 and C4 photosynthetic pathways in harsh climates where water is scarce. CAM is, however more metabolically costly than C3 or C4 photosynthesis, and some plants, such as Mesembryanthemum crystallinum, facultatively utilize CAM when water is abundant, and water conservation unnecessary. In such situations, these plants behave akin to a C3 plant when photosynthesizing. CAM is divided into four phases, with each phase displaying unique metabolic processes. Certain changes, including changes in the timing of CO2 fixation, stable carbon isotope ratios, and tissue malic acid content accumulation patterns can indicate that a plant has shifted from CAM to C3 photosynthesis. Such shifts have been observed to be regulated primarily by water availability and ontogenic development. While facultative CAM is well documented in species like Mesembryanthemum crystallinum, and it has not been studied extensively in Agave with the exception of Agave deserti, and Agave angustifolia. A better understanding of this phenomenon would apply to the agricultural growth of this genus. This study aimed to trigger C3 to CAM shifts in Agave sensu lato species, in order to expand upon the findings of previous studies, and better understand the prevalence of facultative CAM expression in the genus. Gas exchange and stable carbon isotope measurements were taken from 2-month-old, 10-month-old, and mature agaves grown in controlled ocnditions. Tissue acid content measurements were taken from mature plants. Despite the Agave sensu lato species in this study being subjected to moisture applications ranging from dry to saturated, we were unable to observe any distinct shifts from CAM to C3 photosynthesis in any of the species tested for both seedlings and mature plants. Diel net CO2 fixation rates also increased with age, and water applications for seedlings, and decreased with heavy irrigation in mature plants. Stable carbon isotope ratios revealed that some carbon in the plant tissues was fixed by rubisco, and that some species (Polianthes tuberosa, Prochnyanthes mexicana) had carbon isotope ratios of a C3 plant, but these ratios did not change with different irrigation treatments. Malic acid accumulation remained typical of CAM plants for the species tested as well, with one exception in Polianthes tuberosa. As such, we conclude that the Agave sensu stricto species tested in this study are obligate CAM plants, and that they perform poorly mature individuals are over-watered. Additionally, the Agave sensu lato species P. mexicana, and P. tuberosa appear to be C3 plants given the results of this study.
43
Wise, Aaron Micahel. "Acetolactate syntahse (ALS) resistant Amaranthus palmeri." 2007. http://purl.galileo.usg.edu/uga%5Fetd/wise%5Faaron%5Fm%5F200712%5Fms.
Full text
44
Zikmundová, Markéta. "Motiv "Lucifera" v románu Connie Palmen, Lucifer." Master's thesis, 2009. http://www.nusl.cz/ntk/nusl-281414.
Full textAbstract:
My final thesis The motif of 'Lucifer' in the novel Lucifer by Connie Palmen discusses two important Dutch literary works: the tragedy Lucifer by Joost van den Vondel (1654) and the novel Lucifer by Connie Palmen (2007). Vondel's tragedy is inspired by the Book of Genesis. According to some particular interpretations of the Bible the angel Lucifer organised a rebellion against God after hearing about creation of mankind. He considered humans as a threat for both heaven and the angels living in there. He believed that through the birth of humans the given order in heaven could have been disturbed. This fatal mistake led to a division of the angels and resulted in an immense battle in which Lucifer and his followers were defeated. As a result Lucifer was expelled from heaven. As revenge he managed to manipulate Eve in the Eden into eating the forbidden fruit from the Tree of Knowledge of Good and Evil. The main character of this famous tragedy, Lucifer, inspired Connie Palmen to write a novel with a structure of a classical, Aristotle tragedy. She was also inspired by many Dutch celebrities and important events starting in the sixties, at latest in the nineties in Amsterdam. Her novel is therefore not only a great thriller and detective story (the wife of the main character perished under mysterious...
45
Meyers, Stephen Lawrence. "Interference and control of Palmer amaranth (Amaranthus palmeri) in sweetpotato." 2009. http://www.lib.ncsu.edu/theses/available/etd-05292009-141450/unrestricted/etd.pdf.
Full text
46
Liu, Fu-Guang, and 劉富光. "Biological study on the breeding techniques of palmetto bass (Morone saxatilis × M. chrysops)." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/58259407500897304142.
Full textAbstract:
博士國立臺灣大學
動物學研究所
87
In order to establish the basic aquaculture data for reference of culturist and to provide a model for researching and developing culture technique of new exotic species, a series of relevant experiments have been launched. An automated system for egg collecting, hatching, and transferring of larvae of several cultured freshwater finfishes has been developed. The system consists of a spawning tank, a filter, an incubation tank, hatching nets, and larviculture ponds. Using this system, grass carp (Ctenopharyngodon idellus), bighead carp (Aristichtys nobilis), silver perch (Bidyanus bidyanus), palmetto bass (Morone saxatilis × M. chrysops) and black carp (Mylopharyngodon piceus) were successfully induced to spawn with a single hormone injection. The fertilized eggs could flow freely into nets for normal hatching, and the hatched larvae could be conveyed automatically into larviculture ponds. The new automated system reduces labor and is highly efficient. The filtration and reuse of culture water achieves the prime objective of water conservation in aquaculture development. The system offers an improvement to the existing technology. Imported fry of F1 hybrid striped bass (Morone saxatilis × M. chrysops, palmetto bass) were held in an earthen pond and fed exclusively commercial floating pellets. They could reach sexual maturity at 2 years old and could be successfully induced to spawning by a single hormone injection. Fertilization rates ranged from 77.2 to 96.7% and hatch rates were between 1.6 and 24.2%, whereas the level of larval deformities ranged between 19.2 and 100%. The F2 progeny exhibited low hatch rate, low larval survival, high level of deformities, and growth variability which suggests that F2 progeny may not be a suitable candidate species for culture. An experimental period of 84 days was carried out to examine the effects of three levels of environmental temperature (18, 23 and 28℃) on the growth performance of palmetto bass. Specific growth rate (SGR) and feed intake both increased with increasing temperatures. With increasing temperature, there was a significant decrease in muscle moisture, but an increase in lipid content. The variance in harvest size distribution was much larger at 28℃ than at the lower temperatures. In terms of SGR and FCE, it can be concluded that the most economical temperature for aquaculture of this species is between 23 and 28℃. Juveniles of palmetto bass were stocked at low (0.71 kg / m3), medium (1.42 kg / m3) and high (2.84 kg / m3) densities. The highest percent weight gain and specific growth rate were obtained in fish raised at medium stocking density and significant differences were found only between low and medium stocking densities. The relationship between proximate composition and growth of fish is less apparent, however, fish with good growth (at medium stocking density) contained more lipid, whereas those with poor growth (at low density) had lower lipid content. The correlation between growth rate and stocking density may be dependent on the factors of social interaction, physical constraints and threshold level of stocking density. Juveniles palmetto bass were reared for 56 days to compare the performance among the six feeding regimens. The maximum specific growth rate was occurred with group fed three meals daily. The elevation in the feeding frequency resulted in increased food intake but decreased feed conversion efficiency. The total food consumption was higher but quantity of food eaten per feeding was observed to be lower in the fish fed frequently. In addition, body moisture and lipid contents were affected by feeding regimen, whereas protein and ash contents were not. Based on the results of this study, the total amount of food eaten was significantly greater during the day than at night, and the best growth for hybrid striped bass was at three meals daily when food deprivation time was equal to 6 h under the condition used in this study. Effect of size-sorting on the growth performance of palmetto bass was studied. The results obtained from the present study demonstrated that size-grading did not have a significant effect on harvest total biomass or size-frequency distribution. The coefficient of variation (CV) of the individual weights elevated in both sorted-large and sorted-small fish during the experiment. It is suggested that high levels of social interaction between individuals of similar size might result in developing agonistic behavior, which both interfere with feeding and lead to increase energy expenditure, giving reduced growth as the end result. Three temperatures (18, 23, and 28℃), three stocking density levels (0.72, 1.42, and 2.84 kg / m3), and two size-groups (averaging 104 and 173 g, respectively) were designed to conduct experiments on the effect of temperature, stocking density, and fish size on the ammonia excretion (AE). As a result, AE increased with increasing temperatures and stocking densities. On the contrary, AE varied inversely with individual fish size. Diurnal variation of AE in palmetto bass showed that AE increased to a peak at about 4 h after feeding was initiated, and to the lowest value at about 24 h.
47
Ribeiro, Israel. "Análise da distribuição do esforço de pesca e das capturas da palmeta (Reinhardtius hippoglossoides, Walbaum 1792) capturada pela frota comercial portuguesa na área de regulamentação NAFO." Master's thesis, 2008. http://hdl.handle.net/10400.1/696.
Full textAbstract:
Dissertação de Mestrado, Aquacultura e Pescas, Especialização em Pescas, Faculdade de Ciências do Mar e do Ambiente, Universidade do Algarve, 2008A Palmeta é um peixe da ordem dos Pleuronectiformes, que habita águas frias e distribui-se em toda a zona boreal entre as latitudes 79°N - 33°N e longitudes 180°W - 180°E. De forma a actuar no sucessivo aumento dos níveis de esforço de pesca e assim criar uma pesca sustentável nos Grandes Bancos da Terra Nova, foi criada em 1979 a comissão NAFO (Northwest Atlantic Fisheries Organization). Esta organização tem como objectivo normalizar os critérios de pesca e adoptar um modelo de gestão dos recursos pesqueiros para o Atlântico Noroeste. As capturas de palmeta aumentaram de níveis relativamente baixos no princípio da década de 60. A partir de 1990, a U.E. tem se tornado a principal frota a operar na Área Regulatória NAFO (NRA), utilizando a arte de arrasto de fundo (OTB), e atingindo capturas máximas de cerca de 45000 toneladas entre 1992 e 1994 e entrando em declínio nos anos seguintes, como resultado da implementação de um TAC como medida de regulamentação da pesca. O presente trabalho tem como principais objectivos analisar a distribuição sazonal e geográfica do esforço de pesca, da CPUE e da abundância da espécie palmeta (Reinhardtius hippoglossoides) capturada pela frota portuguesa de arrasto de fundo a operar nas Divisões 3LMNO da NRA. Os dados utilizados foram cedidos pelo INRB/IPIMAR e correspondem aos registos oficiais efectuados no diário de bordo de pesca de 3 embarcações para o período de 1998 a 2006. Os padrões de capturas, esforço e rendimentos de pesca foram analisados e representados num Sistema de Informação Geográfica (SIG). Os resultados dos indicadores da pesca apresentaram uma tendência negativa, e suportam a hipótese de uma possível sobre exploração do stock. Considerando a distribuição das capturas com a profundidade, a análise dos resultados indicam a profundidade de 600 metros como o limite mínimo para o melhor rendimento da captura comercial desta espécie, sendo possível implementar medidas de conservação dos recursos com impacto reduzido na pesca. Relativamente à distribuição geográfica, a Divisão 3L foi identificada como a zona preferencial para a pesca directa da palmeta, principalmente nas zonas da Décima, Sackville Spur e do Flemish Pass. A Divisão 3M, apresentou-se como a segunda área preferencial. As capturas com melhores rendimentos ocorreram na zona de continuação do Spur (Div.3L) e no Campanário, na zona do Machucho e no Banco do Flemish, no canto NE e na zona do Baixo, provavelmente como by-catch da pescaria do Cantarilho do Norte (Sebastes sp.). As Divisões 3NO, por sua vez, não parecem ser zonas de pesca preferenciais da palmeta. As áreas destinadas a pesca directa desta espécie situam-se ao longo do declive da plataforma continental, a Sul dos principais Canyons na Div.3N, e nas batimétricas superiores a 950m na Div.3O.
The Greenland halibut is a deep-water flatfish, belonging to the order of Pleuronectiformes, that lives in cold water in all boreal zones between 79°N - 33°N latitude and 180°W - 180°E longitude. In order to respond to the successively increasing levels of fishing effort and to create a sustainable fishery in the Grand Banks of Newfoundland, to normalize the fishing criteria and to adopt a management model for fisheries resources in Western North Atlantic Ocean, the Northwest Atlantic Fisheries Organization (NAFO) was created in 1979. Greenland halibut (GHL) catches increased from relatively low levels in the beginning of the 60's, with the E.U becoming the major bottom trawl fleet (OTB) in NAFO Regulatory Area (NRA) since 1990, taking high catches of 45000 tons between 1992 and 1994, with a decrease in the following years, as the result of Total Allowable Catch (TAC) implemented as a regulatory measure by the NAFO Fisheries Commission. The main objectives of this study are to analyze the seasonal and geographic distribution of fishery effort, CPUE and abundance of the Greenland halibut (Reinhardtius hippoglossoides) caught by Portuguese bottom trawl fleet working in NRA Division 3LMNO. Data was provided by the INRB/IPIMAR and corresponds to official logbook registries of three vessels from 1998 to 2006. The catch, effort and fishery efficiency was analysed and mapped with a Geographic Information System (GIS). The results of the indicators present the negative tendency of fishery, and support the hypothesis of over fishing. Considering the catch distribution by depth, results indicate the 600 meters deep as the limit for a good performance in commercial catches, and it can provide an important resources conservation measure with a minimum impact on fisheries. With regards the geographic distribution, Div.3L was identified as the preferential zone for targeting GHL, mainly in the “Décima”, Sackville Spur and Flemish Pass zones. Div.3M, was the second most preferred zone, with better catches near Spur (Div.3L) and “Campanário”, in “Machucho's” zone and in the Flemish Bank, in NW side and in low deeps area of the Bank, probably as by-catch of Redfish (Sebastes sp.) fisheries. On the other hand, Div. 3N-O, did not show up as a preferential zone in terms of catches of GHL, with fishing areas identified along the shelf edge and in the deep channels, south of the main canyons in 3N division, and at depths greater than 950 meters in 3O division, other catches are associated with by-catch from the enormous diversity of fish species caught commercially in this division.
48
Zimmermann, Stefan [Verfasser]. "Wüsten, Palmen und Basare : die cineastische Geographie des imaginierten Orients / Stefan Zimmermann." 2007. http://d-nb.info/1011036495/34.
Full text
49
Chang, Shu-chen, and 張素真. "Evaluation of the combined use of saw palmetto and alfuzosin in the treatment of benign prostatic hyperplasia." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/29rynz.
Full textAbstract:
碩士南華大學
自然醫學研究所
95
This study aims to investigate the clinical effects of a phytotherapeutic agent saw palmetto, the drug Alfuzosin, both singly and jointly in patients experiencing lower urinary tract symptoms (LUTS) who were also diagnosed with benign prostatic hyperplasia (BPH). A total of 28 patients diagnosed with BPH and met the study criteria were divided into three groups based on the severity of their symptoms. Those of mild severity (n=10) were asked to take saw palmetto extract at 320mg per day (Group P) and those of moderate severity (n=10) were asked to take alfuzosin at 10 mg per day (Group A). Those of greatest severity (n=8) were asked to take both saw palmetto extract and alfuzosin (Group PA). Serum prostate specific antigen (PSA), maximal flow rate (Qmax), prostate volume (PV), and the International Prostate Symptom Score (IPSS) were obtained at the baseline and at the end of the three-month intervention. Results indicated that PV decreased by 4.8±8.2cc and 3.8±1.8cc in the Group P and Group PA and the reduction was significantly lowered than that in the Group A (p=0.032). In the IPSS score, the reduction in Group PA (-7.6±3.0) and Group A (-4.3±1.3) were significantly greater than that of Group P (-3.1±3.0) (p=0.003). The reduction in score was attributed by the changes in the obstructive symptoms (p=0.005) and three of its four items, namely, incomplete emptying (p=0.029), intermittency (p=0.032), and weak stream (p=0.018). The reduction in Group P was not significantly differed from that of Group A and that Group PA was not significantly differed from that of Group A. In conclusion, this study found that saw palmetto extract can improve certain lower urinary tract symptoms, particularly those of obstruction in nature, associated with BPH. The combined effect of saw palmetto and alfuzosin appeared to be more significant than when these agents were used singly. Future clinical studies in this area may provide patients with BPH additional therapeutical choices.
50
Weirich, Jason Wade. "Alternative control practices for Amaranthus palmeri resistant to acetolactate synthase inhibiting herbicides in Oklahoma peanut fields." 2007. http://digital.library.okstate.edu/etd/umi-okstate-2376.pdf.
Full text