Academic literature on the topic 'B-720'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'B-720.'
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.
Journal articles on the topic "B-720"
1
Oliveira, Giane A., Kristiane Wetzel, J. Mauricio Calvo-Calle, Ruth Nussenzweig, Annette Schmidt, Ashley Birkett, Filip Dubovsky, et al. "Safety and Enhanced Immunogenicity of a Hepatitis B Core Particle Plasmodium falciparum Malaria Vaccine Formulated in Adjuvant Montanide ISA 720 in a Phase I Trial." Infection and Immunity 73, no. 6 (June 2005): 3587–97. http://dx.doi.org/10.1128/iai.73.6.3587-3597.2005.
Full textAbstract:
ABSTRACT Highly purified subunit vaccines require potent adjuvants in order to elicit optimal immune responses. In a previous phase I trial, an alum formulation of ICC-1132, a malaria vaccine candidate comprising hepatitis B core (HBc) virus-like particle containing Plasmodium falciparum circumsporozoite (CS) protein epitopes, was shown to elicit Plasmodium falciparum-specific antibody and cellular responses. The present study was designed as a single-blind, escalating-dose phase I trial to evaluate the safety and immunogenicity of single intramuscular doses of ICC-1132 formulated in the more potent water-in-oil adjuvant Montanide ISA 720 (ICC-1132/ISA 720). The vaccine was safe and well tolerated, with transient injection site pain as the most frequent complaint. All vaccinees that received either 20 μg or 50 μg of ICC-1132/ISA 720 developed antiimmunogen and anti-HBc antibodies. The majority of volunteers in these two groups developed sporozoite-specific antibodies, predominantly of opsonizing immunoglobulin G subtypes. Peak titers and persistence of parasite-specific antibody following a single injection of the ISA 720 formulated vaccine were comparable to those obtained following two to three immunizations with alum-adsorbed ICC-1132. Peripheral blood mononuclear cells of ICC-1132/ISA 720 vaccinees proliferated and released cytokines (interleukin 2 and gamma interferon) when stimulated with recombinant P. falciparum CS protein, and CS-specific CD4+ T-cell lines were established from volunteers with high levels of antibodies to the repeat region. The promising results obtained with a single dose of ICC-1132 formulated in Montanide ISA 720 encourage further clinical development of this malaria vaccine candidate.
2
Nurul Fauziyah, Rini, and Asri Widyasanti. "The valorization of neem leaves infused coconut oil at various concentrations for the production of natural liquid shampoo." Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering 4, no. 2 (December 2021): 131–37. http://dx.doi.org/10.21776/ub.afssaae.2021.004.02.6.
Full textAbstract:
The liquid shampoo is a product that is generally used to clean hair and scalp. The additional active ingredient used in the liquid shampoo is neem leaves which contain polyphenols that have antibacterial effects. Neem leaves extract was made by hot infusion method with coconut oil as a solvent. The purposes of this research were to find the best concentration of neem leaves infused oil for liquid shampoo material and compare the qualities of liquid shampoo with Indonesian National Standard (SNI) of Shampoo 06-2692-1992. The method of this research was a laboratory experiment with descriptive analysis. This research was conducted in five treatments. Concentration neem leaves infused oil for liquid shampoo materials were ratio between coconut oil and neem leaves in sample A = 720:0 (w/w); B = 720:22,5 (w/w); C = 720:30 (w/w); D = 720:45 (w/w); and E = 720:90 (w/w). The result showed that all of the shampoos met the SNI of Shampoo 06-2692-1992 according to organoleptic, moisture content, and pH. The best shampoo based on organoleptic observation was shampoo C (720:30 (w/w)) with a hedonic percentage of 40%, moisture content of 69.89%, pH 7.03, and specific gravity of 1.0223 g/g. The highest antibacterial activity against S. aureus was shampoo E (720:90 (w/w)) with an inhibition zone diameter was 9.5 mm. Shampoo with the highest antibacterial activity resulted from the highest addition of coconut oils infused Neem leaves. It proved that neem leaves were effective as an additive in making shampoo to boost its antimicrobial properties.
3
Queiroz, Juliana Roberta Gobi, Antonio Carlos Silva Junior, Andréia Cristina Peres Rodrigues, and Dagoberto Martins. "Eficiência da aplicação da mistura de glyphosate com saflufenacil sobre plantas de Brachiaria decumbens." Revista Brasileira de Herbicidas 13, no. 1 (April 10, 2014): 1. http://dx.doi.org/10.7824/rbh.v13i1.255.
Full textAbstract:
O objetivo deste estudo foi verificar o sinergismo ou antagonismo de glyphosate com e sem a mistura de saflufenacil no controle de B. decumbens. Foram avaliados no estudo os seguintes tratamentos: glyphosate (1.080), glyphosate + saflufenacil + Dash (1.080 + 24,5 + 0,5% v/v), glyphosate + 2,4 D (1.080 + 720); glyphosate (1.440); glyphosate + saflufenacil + Dash (1.440 + 24,5 + 0,5% v/v); glyphosate + 2,4 D (1.440 + 720); saflufenacil + Dash (24,5 + 0,5 v/v); 2,4 D (720), doses em g i.a./e.a. ha-1. A eficiência de controle de B. decumbens foi avaliada em diversos períodos: 3, 7, 14, 21, 28, 35, 42 e 49 dias após a aplicação (DAA), com base nos sintomas de fitointoxicação, utilizando-se a escala de 0% a 100%. Os resultados foram submetidos à análise de variância pelo teste F e as médias comparadas pelo teste Tukey ao nível de 5% de probabilidade. O herbicida glyphosate aplicado de forma isolada nas duas doses testadas, ou em mistura com saflufenacil, proporcionou um excelente controle das plantas de B. decumbens já a partir dos 14 dias. Os herbicidas saflufenacil e 2,4-D quando aplicados isoladamente sem a presença do herbicida glyphosate mostraram-se ineficientes no controle das plantas. O controle das plantas de braquiária proporcionado pelas misturas de glyphosate com 2,4-D e saflufenacil foi semelhante ao da aplicação isolada de glyphosate. As misturas não apresentaram sinergismo ou antagonismo sobre o controle das plantas de B. decumbens.
4
Santos, M. V., F. A. Ferreira, F. C. L. Freitas, L. D. Tuffi Santos, and D. M. Fonseca. "Controle de Brachiaria brizantha com uso do glyphosate após o estabelecimento de Tifton 85 (Cynodon spp.)." Planta Daninha 24, no. 4 (December 2006): 813–19. http://dx.doi.org/10.1590/s0100-83582006000400023.
Full textAbstract:
A eficiência do glyphosate no controle de Brachiaria brizantha cv. Marandu em áreas de cultivo do Tifton 85 foi avaliada utilizando o delineamento experimental em blocos casualizados, com oito doses de glyphosate (0, 90, 180, 360, 720, 1.080, 1.440 e 1.800 g ha-1), e quatro repetições. Cada parcela foi constituída de um vaso com duas plantas de B. brizantha cv. Marandu e duas plantas de Tifton-85. A aplicação do herbicida foi feita quando as plantas de B. brizantha apresentavam cerca de 40 cm de altura. O nível de intoxicação nas plantas de Tifton 85 e a eficiência do herbicida no controle de B. brizantha foram avaliados aos 15, 30 e 60 dias após aplicação (DAA). Aos 60 DAA, as plantas foram colhidas ao nível do solo e secas em estufa. A rebrota foi avaliada, do mesmo modo, aos 60 dias após o corte (DAC). Obeservou-se controle superior a 90% de B. brizantha, a partir da dose de 738,28 g ha-1 de glyphosate, enquanto a intoxicação para as plantas de Tifton 85 foi de apenas 12,05. Aos 60 DAA, houve redução na produção de massa seca de braquiária a partir da dose de 90 g ha-1. Doses superiores a 720 g ha-1 diminuíram o crescimento e desenvolvimento do Tifton 85, afetando sua produção, sem, no entanto, ocasionar a morte das plantas. Os resultados evidenciam boa tolerância do Tifton 85 até a dose de 720 g ha-1 de glyphosate.
5
Elsreite, Farag S. "The Ability of Some Snails (B. alexandrina, M. tuberculate, and P. acuta) for Growth and Reproduction in Artificial Environment." مجلة علوم البحار والتقنيات البيئية 2, no. 1 (June 30, 2016): 54–59. http://dx.doi.org/10.59743/jmset.v2i1.116.
Full textAbstract:
Three different species of Snails, B. Alexandria, M. tuberculata and P. acuta are selected from Lake Tauorgha. Libya. The results show that physa acute is more adaptive for life in captivity when Kept in aquaria for a period of time from three months to one year. M. tuberculata snails are able to reproduce but with a loss degree than P. acuta, when water from Lake Tauorgha. Also, tap water is added to the aquaria, P. acute continued to live in the artificial environment for less than three months. P. acute snails are the most resistant to the artificial conditions with more observable reproductive ability while M. tuberculata has less ability than P. acute but B. alexandrina survived those artificial environment conditions for a few days. The present study revealed that of (720) B. alexandria snails (720) with different shell sizes (15.13%) were found naturally infected with Fasciola (cercaria) and S. mansoni (cercaria) (p< 0.01).
6
Wong-Ng, W., L. P. Cook, C. K. Chiang, L. J. Swartzendruber, L. H. Bennett, J. Blendell, and D. Minor. "Structural phase transition study of Ba2YCu3O6+x in air." Journal of Materials Research 3, no. 5 (October 1988): 832–39. http://dx.doi.org/10.1557/jmr.1988.0832.
Full textAbstract:
A structural phase transition study of Ba2YCu3O6+x (x = 0 to 1) has been conducted on a series of 13 quenched samples. These samples were prepared from an orthorhombic material by annealing at temperatures from 400 to 1000 °C in air, followed by rapid quenching. All quenchings were performed by using a liquid-nitrogen-cooled copper cold well with a continuous flow of cooled helium gas. Various measurements including x-ray diffraction, thermogravimetric analysis, Meissner effect, and scanning electron microscopy were carried out in order to correlate the nature of the phase transition with erystallographic data, superconductivity, and annealing temperature. The phase transition from Ba2YCu3,O7 to Ba2YCu3O6 appears to involve two orthorhombic regions: region A with a <b ≈ c/3 below approximately 600 °C and region B with cell parameters of a < b < c/3 from & 600 to 708–720 °C. The transformation from orthorhombic to tetragonal takes place in the temperature range of 708–720 °C. This transition appears to be a second-order, order-disorder type.
7
Ferri, Miguel Vicente Weiss, FIávio Luiz Foletto Eltz, and Nelson Diehl Kruse. "Dessecação do campo nativo para semeadura direta da cultura da soja." Ciência Rural 28, no. 2 (June 1998): 235–40. http://dx.doi.org/10.1590/s0103-84781998000200009.
Full textAbstract:
Para avaliar doses do herbicida glyphosate, isolado ou misturado com 2,4-D, na dessecação do campo nativo para semeadura direta de soja, foi conduzido um experimento no compus da UFSM. Os tratamentos foram: glyphosate a 360, 720 e 1080g ha-1 de equivalente ácido, isolado ou em mistura com 200g ha-1 de 2,4-D éster, aspergidos em dois volumes de calda (50 e 200l ha-1), além de testemunha sem controle. A aspersão dos herbicidas ocorreu em 30/10/95 e a semeadura da soja em 27/12/95. Das 57 espécies presentes no campo nativo, as principais foram: Paspalum notatum var. notatum biótipos "C" e "D", Vernonia polyanthes, Vernonia nudiflora, Eryngium horridum e Baccharis trimera. Os resultados mostram que o uso de 2,4-D e a redução do volume de calda de 200 para 50l ha-1 não melhoraram a eficácia de controle do glyphosate, que mostrou controle geral de 48, 73 e 90% para as doses de 360, 720 e 1080g ha-1. O glyphosate mostrou controle ineficiente de V. polyanthes, V. nudiflora e E. horridum, independente da dose ou mistura com 2,4-D, sendo eficiente para B. trimera à 720 e 1080g ha-1. Houve controle do Paspalum de 54, 79 e 93% para o glyphosate à 360, 720 e 1080g ha-1 . O rendimento médio de grãos de soja foi de 1762, 2502, 2690 e 2793 kg ha-1, para testemunha e glyphosate a 360, 720 e 1080g ha-1. Conclui-se que, para semeadura direta de soja sobre campo nativo, a dose de 1080g ha-1 de glyphosate é adequada.
8
Costa, Neumarcio Vilanova, Eduardo Jorge de Lima Peres, Lucas Ritter, Pabluo Volpato Silva, and Emerson Fey. "Avaliação do glyphosate e paraquat no manejo da Brachiaria ruziziensis." Revista Brasileira de Herbicidas 12, no. 1 (April 10, 2013): 31. http://dx.doi.org/10.7824/rbh.v12i1.179.
Full textAbstract:
O objetivo deste trabalho foi o de avaliar o efeito de doses do paraquat e do glyphosate na dessecação da forrageira Brachiaria ruziziensis. O delineamento experimental foi de blocos casualizados com quatro repetições. As doses do do glyphosate foram 0, 90, 180, 360, 720 e 1440 g ha-1 e do paraquat foram 0, 50, 100, 200, 400 e 800 g ha-1. Com base nos resultados obtidos pode-se concluir que o paraquat foi ineficiente na dessecação da B. ruziziensis e que o glyphosate foi eficiente apenas nas doses de 720 e 1440 g ha-1. Não houve emissão de novos perfilhos após a dessecação das plantas da forrageira que permitisse utilização prática para manejo no sistema agricultura-pecuária.
9
Breidthardt, Tobias, Kirsten Laule, Anne-Henny Strohmeyer, Christian Schindler, Sophie Meier, Michael Fischer, André Scholer, et al. "Medical and Economic Long-term Effects of B-Type Natriuretic Peptide Testing in Patients with Acute Dyspnea." Clinical Chemistry 53, no. 8 (August 1, 2007): 1415–22. http://dx.doi.org/10.1373/clinchem.2006.081448.
Full textAbstract:
Abstract Background: The objective of this prospective study was to assess the medical and economic long-term effects of using B-type natriuretic peptide (BNP) concentrations in the management of patients with acute dyspnea. Methods: We performed follow-up analysis of the B-Type Natriuretic Peptide for Acute Shortness of Breath Evaluation, a randomized study including 452 patients who presented to the emergency department with acute dyspnea. Participants were randomly assigned to a diagnostic strategy involving the rapid measurement of BNP concentrations (n = 225) or standard assessment (n = 227). Mortality was assessed at 720 days, morbidity and economic data at 360 days. Results: BNP testing induced several important changes in initial patient management, including a reduction in the initial hospital admission rate, the use of intensive care, and initial time to discharge. At 720 days, 172 deaths had occurred. Cumulative all-cause 720-day mortality was not different between the BNP group (37%) and the control group (36%, P = 0.6). Morbidity as reflected by days spent in-hospital at 360 days was significantly lower in the BNP group [median 12 days ([interquartile range 2–28 days)] compared with the control group [median 16 (7–32)] days, P = 0.025]. Functional status was similar in both groups. Economic outcome as quantified by total treatment cost at 360 days was significantly improved in the BNP group (mean $10 144 vs $12 748 in the control group, P = 0.008). Conclusions: Rapid BNP testing in patients with acute dyspnea has no effect on long-term mortality. However, morbidity as quantified by days spent in-hospital and economic outcome are still improved at 360 days.
10
King, G. R. D. "Islam, iconoclasm, and the declaration of doctrine." Bulletin of the School of Oriental and African Studies 48, no. 2 (June 1985): 267–77. http://dx.doi.org/10.1017/s0041977x00033346.
Full textAbstract:
The attitude of the early Islamic state towards figurative representations is often cited as a source contributing to the establishment of officially-supported iconoclasm within the Byzantine Empire in A.D. 726. Islam has generally adopted a position opposed to the representational in secular art, and the exclusion of all figurative motifs from Islamic religious art is clear from the first, yet this attitude is not necessarily to be regarded as intrinsically iconoclastic in the true sense of the word; indeed, outside Arabia itself, the only evidence of iconoclasm until the fall of the Umayyad Caliphate in 132/750 is confined to the well-known attack on images and statues carried out on the orders of Yazīd II. b. ‘Abd al-Malik (101–105/720–724). This much discussed outbreak of iconoclasm is well documented by Islamic and Christian sources, but the very fact that it is so specifically associated with Yazīd's Caliphate suggests that it was considered unusual at the time. Although Christian sources carefully record the difficulties of their communities under the Umayyads, the absence of references to image-breaking under Caliphs before Yazīd implies that his action was a rarity worthy of comment: under normal circumstances, it would seem the Muslims left the Christians to use icons and representations or not, as they wished.
Dissertations / Theses on the topic "B-720"
1
Guessous, Fekkoussi Azeddine. "Le Règne de Umar b. Abd-al-Aziz (99-101) (717-720) : l'homme et ses oeuvres." Paris 4, 1986. http://www.theses.fr/1986PA040301.
Full textAbstract:
Dans le cadre du califat Umayyade nous avons étudié le règne de Umar II. Pour essayer de tracer une esquisse de son système politique qui consista essentiellement à tempérer toutes les tendances anti-umayyade au sein de l'état. Pour ce qui est de sa politique extérieure parallèlement au mouvement des conquêtes, il adopta un autre procédé pour la propagande de l'islam : la correspondance entre lui et l'empereur byzantin Léon III, entre lui et les souverains de l'Inde et du Sind. Pour ce qui est de l'administration il réorganisa la répartition des provinces et nomma de nouveaux gouverneurs et employés qui furent sujets à un contrôle sévère bien que la plupart d'entre eux soient des faqihs et des muhaddiths. Il instaura aussi de nouveaux (diwan) bureaux. Dans le domaine fiscale il interdit la perception de la capitation des nouveaux convertis à l'islam et interdit aussi la vente ou la concession des terres soumises à l'impôt foncier. Il était pour l'idée selon laquelle l'imam jouit d'un plein pouvoir sur le statut des terres soumises à l'impôt foncier (kharadj). Il faut souligner que la politique de Umar II était en quelques sortes une poursuite plus radicale de celle de son prédécesseur Suleyman qui a préparé l'avènement de son cousin Umar II à l'aide du faqih de la cour radja'b. Haywa. L'aspect fondamental de la personalite de "umar ii est que ce souverain Umayyade était un faqih et muhaddith (savant et transmetteur du hadith) médinois qui nous a laissé sans doute le premier musnad (recueil de hadith classifié selon les transmetteurs) qu'il rédigea officiellementIt is within the context of the Umayyad califate that one has endeavored to study the reign of this sovereign. In order to lay out an outline of his rule it is essential that we study his internal policy. In this particular field he managed to suppress all anti-Umayyad tendencies which were prevalent under the Damascus regime. With regard to his foreign policy he was in favor of the conquest and though his correspondence. With the byzantine emperor Leo III and the sovereigns of India and Sind. He also stands for propaganda of Islam. As for the administration of the sovereign he reorganized the reallocation of the provinces to some extent and he also appointed new governors and created new offices (diwan). As for as his tax system was concerned, he abolished the poll-tax collection from those who had been newly converted to Islam. Thus he prohibited the sale and concession of the land which was subjected to the land tax. One must emphasize that the political system of Umar was in same ways a radical continuation of his predecessor Suleiman who together with the court's faqihradja" b. Haywa contrived the succession of Umar II. The basic feature of his personality was that he was in every respect a medinian faih and muhaddith. He was probably the author of the first musnad (a collection of hadith which is classified according to the transmitter) compiled by him
2
Guessous, Fekkoussi Azeddine. "Le Règne de Umar b. Abd-al-Aziz (99-101) (717-720) l'homme et ses oeuvres." Lille 3 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37598072v.
Full text
3
Chetoui, Abdelkarim. "L’image de ʿUmar b. ʿAbd al-ʿAzīz (m. 101/720) et son rôle dans la formation du droit islamique et la mise par écrit de la tradition." Thesis, Paris, EPHE, 2015. http://www.theses.fr/2015EPHE5034.
Full textAbstract:
Nous présentons une nouvelle approche entière, composée et critique de la littérature et l'historiographie sur les différentes dimensions du personnage de ʿUmar II. Entière parce qu'il s'agit de recomposer avec diverses intra- et extra-islamiques appréciations de l'homme, son entourage et ses cours/mağālis. Composée et critique également car il s’agit de mener un chantier complet sur la littérature classique et l’approche critique moderne afin de saisir la réelle contribution de ʿUmar II à la fondation de l'islam comme religion (droit, théologie, ḥadîṯ, ascétisme) et comme culture (politique, poésie et Adab), en tirant profit de chacune des lectures sur ce personnage. En effet, ʿUmar II est présenté notamment comme calife juste et homme politique modèle dans la littérature des cours et de l’Adab. Nous traitons d’autres dimensions de ce personnage de l’islam primitif, très peu étudiées ou timidement exposées, et parfois contestées ; celle du juriste-traditionniste jouit du statut honorifique de muğtahid/muğaddid, rénovateur du dīn, dont la contribution au droit islamique ancien est intensivement soulignée. Malgré une très courte carrière politique et juridique, son autorité en matière légale a été rapidement reconnue. Bien avant le milieu du second siècle son droit a été intégré dans les maḏhab-s primitifs et classiques. Son Musnad, récemment édité, est d’un apport tout particulier sur les anciennes méthodes de transmission de la tradition et sur le milieu médinois en général. Un phénomène aurait vu le jour en son temps, l’ascétisme, et la tradition présente le calife comme catalyseur de ce mouvement, son héros et l’inspirateur d’une expression poétique à travers sa conduite éthique et politique exemplaire, sans omettre les dimensions eschatologiques de ʿUmar le Mahdī, messie sauveur qui aurait fini comme martyr (šahīd), en lien avec l’esprit qui régnait depuis la fin du premier siècle et dont on trouve les traces dans plusieurs sources arabes et étrangèresAn entirely new critical and complex approach to the literature and historiography built around 'Umar II' character’s various dimensions. It is a thorough reconstruction based on various intra- and extra-Islamic assessments of the man, his surroundings and his courtyard(s)/mağālis. It is complex and critical as it opens a large undertaking on classical literature and modern critical approaches in order to capture the real contribution of ʿUmar II to the foundation of Islam as a religion (law, theology, ḥadīṯ, asceticism) and as a culture (politics, poetry and Adab) while taking advantage of various analysis of his persona. In fact, ʿUmar II is presented in particular as a fair Caliph and a role model politician in the literature of court and "Adab". We address other undiscovered or, sometimes, timidly exposed and challenged aspects of this character of primitive Islam; a jurist-traditionalist enjoying the honorary status of muğtahid/muğaddid and dīn renovator which contributed massively to the ancient Islamic legislation. Despite his short political and legislative carrier, his influence in law-making was recognised rapidly. Even earlier than mid second century, his legislation was adopted and integrated in primitive and classical maḏhab-s. His Musnad, recently edited, has particularly improved traditional methods of transmitting tradition and influenced the Medina settings in general. Asceticism, as phenomenon, has seen the light in his era first and portrayed the Caliph as the catalyst of this movement, its hero and the inspiration of a poetic expression through his ethical and political exemplary conduct, without omitting the eschatological dimensions of ʿUmar the Mahdī, the Messiah and saviour who would have ended as a martyr (šahīd), in connection with the spirit that prevailed since the end of the first century and which traces are found in several Arab sources
4
OLIVEIRA, Michele Dias da Silva. "Estudo soroepidemiológico da infecção pelo vírus da hepatite B(HBV) e avaliação da soroconversão à vacina butang em adolescentes da periferia da região metropolitana de Goiânia, Goiás." Universidade Federal de Goiás, 2005. http://repositorio.bc.ufg.br/tede/handle/tde/720.
Full textAbstract:
Made available in DSpace on 2014-07-29T15:04:36Z (GMT). No. of bitstreams: 1
Michele Dias da Silva.pdf: 1475978 bytes, checksum: aa1c3597fc8218edec3d0057b0cdf791 (MD5)
Previous issue date: 2005-12-09To evaluate the seroepidemiology profile of the hepatitis B virus infection, and the response to Butang® vaccine in adolescents from a low-income region in the Metropolitan Area of Goiânia city Goiás 664 individuals with 12 to 19 years old were interviewed regarding socio-demographic and HBV risk factors After blood samples were collected and serum samples were tested for HBV markers (HBsAg, anti-HBs and anti-HBc) by enzyme-linked immunosorbent assay (ELISA) HBsAg positive samples were subtyped by ELISA and HBV DNA detected by polymerase chain reaction Positive samples were genotyped by restriction fragment length polymorphism (RFLP) method Three doses of 20μg of the Butang® vaccine were offered to all susceptible adolescents and the vaccine response was evaluated nearly 45 days after A global prevalence of 5.9% (CI 95%: 4.3 8.0) was found ranging from to 2.4% (CI 95%: 0.7 - 6.3) to 17.3% (CI 95%:11.0 - 26.0) All HBsAg positive adolescents were infected with HBV isolates of subtype adw2 and genotype A Age of 16 to 19 years attending in evening classes school B birth in other state and body piercing were independently associated to HBV positivity A total of 304 adolescents were susceptible to hepatitis B virus Of them 182 compliance with the full vaccine scheme and in 170 the vaccine response was evaluated All developed protector anti-HBs titers being the majority with titers higher than 1.000 mUI/mL The anti-HBs geometric means titers (GMT) were equal to 4.344 mUI/mL (CI 95%: 3.492 5.404) These findings ratify the importance of hepatitis B vaccine to adolescents mainly to low income ones whose social conditions should support the viral dissemination The administration of the present scheme of Butang® should guarantee protective anti-HBs levels to individuals at a critical time for hepatitis B acquiring such as latter adolescence and adulthood
Para investigar o perfil soroepidemiológico da infecção pelo vírus da hepatite B e avaliar a soroconversão à vacina Butang® em adolescentes da periferia da Região Metropolitana de Goiânia Goiás 664 indivíduos de 12 a 19 anos foram entrevistados sobre dados pessoais e fatores de risco para a infecção pelo HBV A seguir foram coletadas amostras sanguíneas para detecção dos marcadores sorológicos do HBV (HBsAg, antiHBs e anti-HBc) pelo ensaio imunoenzimático (ELISA) As amostras HBsAg reagentes foram subtipadas por ELISA e submetidas à detecção do HBV DNA pela reação em cadeia da polimerase sendo as positivas genotipadas por análise do polimorfismo de fragmentos de restrição (RFLP) A todos os adolescentes suscetíveis foram oferecidas três doses de 20 μg da vacina Butang® e a resposta vacinal detectada cerca de 45 dias após a última dose Uma prevalência global de 5,9% (IC 95%: 4,3 8,0) foi encontrada, variando de 2,4% (IC 95%: 0,7-6,3) a 17,3% (IC 95%:11,0-26,0) Todos os adolescentes HBsAg positivos foram infectados com amostras do subtipo adw2 e genótipo A Possuir 16 a 19 anos de idade, estudar no período noturno na escola B ser natural de outro estado e usar body piercing foram fatores independentemente associados à positividade ao HBV Um total de 304 adolescentes eram suscetíveis ao vírus da hepatite B Destes 182 receberam o esquema completo da vacina Butang® e em 170 foi possível avaliar a resposta vacinal Todos desenvolveram anticorpos anti-HBs em níveis protetores sendo a maioria com títulos superiores a 1.000 mUI/mL A média geométrica dos títulos (GMT) de anti-HBs foi igual a 4.344 mUI/mL (IC 95%: 3.492 5.404) Os resultados desta investigação ratificam a importância da vacinação contra hepatite B na população de adolescentes principalmente para os de baixa renda cujas condições sociais parecem favorecer a disseminação viral A utilização da Butang® com o presente esquema deve garantir títulos protetores de anti-HBs em uma fase crítica para infecção pelo HBV como a adolescência e vida adulta jovem
5
Solano, Sarah Laurentina Tomaz. "Os agricultores familiares e suas estratégias de gestão: o PRONAF B no território Açu-Mossoró." Universidade Federal Rural do Semi-Árido, 2017. http://bdtd.ufersa.edu.br:80/tede/handle/tede/720.
Full textAbstract:
Submitted by Lara Oliveira (lara@ufersa.edu.br) on 2017-06-19T22:05:10Z
No. of bitstreams: 1
SarahLTS_DISSERT.pdf: 3695848 bytes, checksum: c06f636b5d045646bfd3cd88e7b271b9 (MD5)Made available in DSpace on 2017-06-19T22:05:11Z (GMT). No. of bitstreams: 1 SarahLTS_DISSERT.pdf: 3695848 bytes, checksum: c06f636b5d045646bfd3cd88e7b271b9 (MD5) Previous issue date: 2017-02-23
This current study brings as main topic the family agriculture and management strategies used by family farmers. Family agriculture is responsible for production of 70% of foods consumed by brazilians, 64% of occupations in rural areas and 10% of brazilian GDP, contradicting scholars such as Kautsky, who predicted the family farmer extinction before the accelerated growth of agribusiness and these smallholders are still surviving in the midst of a dynamic and complex market. Over the years, many public policies were developed aiming to promote the growth of agricultural segment, but such measures were predominantly benefiting great enterprises in rural areas. After years of struggle, in 1996 was created the National Program for Sustainable Family Agriculture (PRONAF in Portuguese), which emerged aiming to promote the development for these small rural enterprises, as well as providing improvements in quality of life of these family farmers who contribute so much to the food production. Among credit lines, this work standeth in PRONAF B, a microcredit line directed to low incomes family farmers, which allows access to low values credit offering tax compliance discounts and reaching up to 25% of the value taken. However, even with so many incentives for tax compliance, PRONAF B had high elinquency rates, which led to the creation of the Oriented Rural Microcredit Program (AGROAMIGO), which provides credit to family farmers benefiting from PRONAF B, with monitoring of credit agents assisting since the project preparation until the process is complete with the transaction settlement. In this context of lending policies directed to family farming, this research had as main goal analyzing how family farmers in Assu-Mossoro are using resources provided by PRONAF B from 2009 to 2014. In order to meet the proposed goal, it was applied a field research with qualitative, exploratory and descriptive approaches, adopting as data collection instrument an interview structured consisting of 18 questions. The study site was conducted in Assu- Mossoro territory composed of 14 counties, where were interviewed 5 family farmers benefited by AGROAMIGO within the period of the study. From the collected data, it was concluded that the family farmers benefited by AGROAMIGO in the study site do not use, in their great majority, management tools in their rural businesses, possibly due to the low level of schooling found among interviewees. This could be an indicator of a need for a more effective presence on the part of ATER in order to enable these farmers to undertake a management of their businesses so that obtain a sustainable development and improving the quality of life of those involved. It is possible to know more from the interviews conducted, such as the perception on the part of the beneficiaries about benefits offered by PRONAF. However, it is a latent need that still exists for the program improvement in order to achieve the goals proposed
O presente estudo traz como tema principal a agricultura familiar e as estratégias de gestão utilizadas pelos agricultores familiares. A agricultura familiar é responsável pela produção de 70% dos alimentos consumidos pelos brasileiros, 64% das ocupações no meio rural e 10% do PIB brasileiro, contradizendo estudiosos como Kautsky (1899), que previam a extinção do agricultor familiar diante do crescimento acelerado do agronegócio, esses pequenos produtores se mantém sobreviventes em meio a um mercado dinâmico e complexo. Ao longo do tempo, muitas políticas públicas foram desenvolvidas com o objetivo de promover o crescimento do segmento agrícola, porém tais medidas beneficiavam predominantemente os grandes empreendimentos rurais. Após anos de luta, em 1996 foi criado o Programa Nacional de Fortalecimento da Agricultura Familiar (PRONAF), que surgiu com intuito de promover desenvolvimento a esses pequenos empreendimentos rurais, bem como proporcionar melhorias na qualidade de vida desses agricultores familiares que tanto contribuem para a produção nacional de alimentos. Entre suas linhas de crédito, o presente trabalho se detém no PRONAF B, linha de microcrédito rural voltada para agricultores familiares de baixa renda, que permite acesso a crédito de valores baixos, dispondo de descontos de adimplência que podem chegar a até 25% do valor tomado. Porém, mesmo com tantos incentivos ao adimplemento, o PRONAF B obteve altos índices de inadimplência, o que levou à criação do Programa de Microcrédito Rural Orientado (AGROAMIGO), que concede crédito aos agricultores familiares beneficiários do PRONAF B, dispondo do acompanhamento de agentes de crédito que auxiliam desde a elaboração do projeto até a conclusão do processo quando da liquidação da operação. Nesse contexto das políticas de crédito voltadas para a agricultura familiar, a presente pesquisa traz como objetivo geral analisar como os agricultores familiares do território Açu-Mossoró utilizam os recursos concedidos pelo PRONAF B no período de 2009 a 2014. De forma a atender ao objetivo proposto, utilizou-se de uma pesquisa de campo de abordagem qualitativa, exploratória e descritiva, adotando como instrumento de coleta de dados a entrevista semiestruturada composta por 18 perguntas. O local de estudo foi o território Açu-Mossoró (RN), composto por 14 municípios, onde foram entrevistados 5 agricultores familiares beneficiados pelo AGROAMIGO dentro do período compreendido pela pesquisa. A partir dos dados coletados, pôde-se concluir que os agricultores familiares beneficiados pelo AGROAMIGO no território em estudo não utilizam, em sua grande maioria, ferramentas de gestão em seus empreendimentos rurais, possivelmente decorrentes do baixo grau de escolaridade encontrado entre os pesquisados, podendo esse vir a ser um indicador da necessidade de uma presença mais eficaz por parte dos órgãos de ATER no sentido de capacitarem esses agricultores familiares para realizarem uma gestão de seus empreendimentos de forma a obterem um desenvolvimento sustentável e melhoria da qualidade de vida de seus envolvidos. Pôde-se conhecer ainda, a partir das entrevistas realizadas, a percepção dos beneficiados acerca dos benefícios proporcionados pelo PRONAF, embora seja latente a necessidade de aprimoramento do programa para que possa alcançar os objetivos a que tem se proposto
2017-06-19
6
Werneck, Jessica Sanchez de Freitas [UNIFESP]. "Estudo da Similaridade Genética de Amostras de Acinetobacter baumannii Produtoras de Carbapenemases do Tipo OXA Isoladas em Diversos Hospitais Brasileiros." Universidade Federal de São Paulo (UNIFESP), 2010. http://repositorio.unifesp.br/handle/11600/9536.
Full textAbstract:
Made available in DSpace on 2015-07-22T20:50:06Z (GMT). No. of bitstreams: 0
Previous issue date: 2010-09-29Centro de Integração Empresa Escola (CIEE)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Fundação de Apoio e Desenvolvimento ao Ensino, Pesquisa e Extensão Universitária no Acre (FUNDAPE)
Nesta dissertação são apresentados dois estudos envolvendo isolados clínicos de Acinetobacter baumannii que apresentaram mecanismos enzimáticos de resistência aos carbapenêmicos, a produção de carbapenemases do tipo OXA. O primeiro estudo avalia a relação genética de amostras de A. baumannii multirresistentes produtoras de OXA-23 provenientes de distintas cidades brasileiras. 91 amostras clínicas de A. baumannii foram isoladas em 17 centros médicos localizados nas cidades de São Paulo (SP), Rio de Janeiro (RJ), Belo Horizonte (MG), Porto Alegre (RS), Blumenau (SC), Curitiba (PR), São Luiz (MA) e Salvador (BA). Nesta coleção observamos altas taxas de resistência aos carbapenêmicos (91.2%) e presença do gene blaOXA-23-like em 83,5% dos isolados. O elemento de insersão ISAba1 à montante ao gene blaOXA-23 foi detectado em todos os 76 isolados de A. baumannii produtores de OXA-23. Nove grupos de genótipos foram observados entre os 76 isolados produtores de OXA-23. Nossos achados sugerem que o gene blaOXA-23 presente nestes isolados estava localizado DNA cromossomal. Três principais grupos (A, B e D) foram observados circulando em seis cidades das regiões sudeste e sul do Brasil, sendo que o genótipo predominante (A) apresentou relação clonal àquele primeiramente descrito na cidade de Curitiba, em 2003. Em contrapartida foi encontrado um único genótipo de A. baumannii produtor de OXA-23 na cidade de São Luís. Embora existam estudos brasileiros prévios reportando a disseminação de clones de A. baumannii pordutores de OXA-23 localmente, nenhum estudo brasileiro demonstrou antes, i) a análise comparativa dos genótipos originários de diferentes e distantes cidades brasileiras, ii) a provável localização do gene blaOXA-23 e iii) a presença do elemento ISAba1 à montante ao gene blaOXA-23,o que pode ter levado ao alto grau de resistência aos carbapenens observado. Desta maneira, o estudo demonstra a circulação de clones de A. baumannii produtores de OXA-23 no Brasil e enfatiza que medidas de controle de infecção são urgentemente necessárias para reduzir tanto a disseminação de isolados multirresistenes quanto o número de infecções causadas por este patógeno. O segundo estudo trata de um relato de caso de um paciente internado em um hospital da cidade de São Paulo, que apresentou uma infecção por A. baumannii produtor de OXA-72. O isolado em questão, A 30235, apresentou resistência a todos os antimicrobianos testados, com excessão à ampicilina/sulbactam tendo apresentado redução da sensibilidade a esta associação. Foi realizada com sucesso a transformação do plasmídeo presente no isolado A30235 na cepa de A. baumannii ATCC 19606. A confirmação da presença do gene blaOXA-72 no transformante evidenciou a localização plasmidial deste determinante de resistência. O plasmídio contendo o gene blaOXA-72 apresentou um peso molecular de aproximadamente 86 Kb. Neste estudo identificamos pela primeira vez no Brasil, um isolado clínico de A. baumannii produtor de OXA-72. A presença deste determinante de resistência codificado por um gene localizado em um elemento genético móvel demonstra a crescente diversidade de carbapenemase do tipo OXA no Brasil com potencial de disseminação. Medidas de controles adequadas deverão ser tomadas para evitar a disseminação de isolados produtores de OXA-72 entre os hospitais brasileiros, o que tem ocorrido com os isolados de A. baumannii produtor de OXA-23.
In this dissertation we present two studies involving carbapenem-resistant Acinetobacter baumannii clinical isolates due to the production of carbapenems modifying enzymes, the OXA-type carbapenemases. The first study aimed to determine the genetic relationship of multi-drug-resistant A. baumannii producing OXA-23 that was isolated in distinct Brazilian cities. A total of 91 A. baumannii clinical isolates were recovered from 17 medical centers located at eight cities, namely São Paulo (SP), Rio de Janeiro (RJ), Belo Horizonte (MG), Porto Alegre (RS), Blumenau (SC), Curitiba (PR), São Luiz (MA) and Salvador (BA). In this collection we observed high rates of carbapenems resistance (91.2%). Also, the blaOXA- 23-like gene was present in 83.5% of isolates. The insertion sequence ISAba1 was positioned upstream the blaOXA-23 gene in all OXA-23-producing A. baumannii identified. Nine clusters were observed among OXA-23 producers. Our fidings suggest that the blaOXA-23 gene was probably chromosomally-located in all isolates studied. Three clusters (A, B and D) were found in six cities from southeast and southern reagions of Brazil. In addition, the predominant cluster (A) was clonally related to that first described in Curitiba, in2003. In contrast, a single cluster of A. baumannii producing OXA-23 was found in São Luís city. Although there were previous reports regarding the spread of OXA-23-producing A. baumannii in Brazil the following features had not yet been assessed: i) the comparative analysis of OXA-23 producers genotypes originating in distinct and distant Brazilian cities, ii) the genetic location of the blaOXA-23 gene and iii) the presence of ISAba1 upstream blaOXA-23 probably resulting in high degree of carbapenem resistance. Thus, our study demonstrates that the clonal dissemination of OXA-23- producing A. baumannii had occurred in Brazil. These findings emphasize that infection control measures are urgently needed to reduce both the spread of multidrug resistantstrains and the number of infections caused by this pathogen. The second study refers to a case report involving a hospitalized patient that presented an wound infection due to OXA-72-producing A. baumannii. The referred clinical isolate, A 30235, was resistant to most antibiotics tested and showed reduced susctptibility to ampicillin/sulbactam. Successful transformation assays using A. baumannii ATCC 19606 as the recipient strain revealed the plasmid location of the blaOXA-72 gene. This plasmid showed molecular weight of about 86 Kb. We identified for the first time in Brazil, an A. baumannii clinical isolate producing OXA-72. The presence of this resistance determinant encoded by a gene located in a mobile genetic elemet, points out to an increasing diversity of OXA-type carbapenemase in Brazil with potential spread. Appropriate control measures should be taken to prevent the spread of OXA-72 producers among Brazilian hospitals, which it we have experienced with OXA-23- producing-A. baumannii in this country.
TEDE
BV UNIFESP: Teses e dissertações
7
Santos, Maria Margarida de Sousa dos. "Cerâmica Arqueológica, estudo comparativo da eficácia inicial de dois consolidantes – polímero acrílico e silicato de etilo." Master's thesis, Faculdade de Ciências e Tecnologia, 2011. http://hdl.handle.net/10362/7524.
Full textAbstract:
Dissertação para obtenção do Grau de Mestre em
Conservação e RestauroÉ frequente, em peças de cerâmica arqueológica, o aparecimento de fenómenos de desagregação. Para a conservação deste material há a necessidade de aplicação de produtos que aumentem a sua coesão e resistência mecânica. Dado existirem poucos trabalhos científicos sobre o desempenho de consolidantes alternativos, a utilizar em cerâmica arqueológica, sentiu-se a necessidade de desenvolver um trabalho laboratorial sobre essa temática. Assim, efectuou-se o estudo comparativo de avaliação da eficácia inicial de dois produtos comerciais, o Tegovakon V® e o Paraloid B-72®, como consolidantes. Foram utilizados provetes (sãos) em cerâmica vermelha cozida a 980 °C. Os consolidantes foram aplicados por imersão total e por pincelagem. A cerâmica foi caracterizada por DRX e os consolidantes por FTIR. A micro-estrutura da cerâmica foi caracterizada, antes e após a consolidação, por MEV-EDE, PM e μ-CT. A eficácia inicial do processo de consolidação foi avaliada através de uma série de ensaios laboratoriais, nomeadamente: porosidade acessível à água, absorção de água por capilaridade, velocidade de propagação de ondas longitudinais, resistência à compressão pontual, ângulo de contacto, tempo de absorção da micro-gota e caracterização colorimétrica. A consolidação é um procedimento que interfere nas propriedades físicas e comportamentais da cerâmica intervencionada. Essas alterações nas propriedades da cerâmica são função do consolidante e do método de aplicação. Nos provetes consolidados, por imersão, com Tegovakon V® verificou-se a redução de 62% da porosidade e 98% da capilaridade, o aumento de 4,8% da resistência mecânica e a alteração de ΔΕ de aproximadamente 7,7. Nos provetes consolidados, por imersão, com Paraloid B-72® verificou-se a redução de 4,5% da porosidade e 87% da capilaridade e o aumento de 4,5% da resistência mecânica. A alteração de ΔΕ, aproximadamente 12, foi superior nos provetes consolidados por pincelagem. Com base nestes resultados podemos afirmar que o consolidante que apresenta melhor desempenho, no que diz respeito à eficácia inicial, é o Tegovakon V® aplicado por imersão.
8
Bouclier, Robin. "Éléments finis isogéométriques massifs coque sans verrouillage pour des simulations en mécanique non linéaire des solides." Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0090/document.
Full textAbstract:
Avec l’arrivée de l’Analyse IsoGéométrique (IGA), le calcul de coque est devenu possible en utilisant la géométrie exacte pour des maillages grossiers. Pour cela, les polynômes de Lagrange sont remplacés pour l’interpolation par des fonctions NURBS (technologie la plus courante en conception assistée par ordinateur). De plus, ces fonctions possèdent une continuité supérieure ce qui offre une meilleure précision qu’un calcul éléments finis à nombre de degrés de liberté égal. L’IGA a déjà été développée pour les formulations coques. Elle n’a été cependant que très peu étudiée pour les modèles massifs coque. Pourtant, cette deuxième approche est très utilisée par l’ingénieur car elle permet de calculer des structures minces à l’aide d’éléments continus 3D, c’est-à-dire en faisant intervenir uniquement des inconnues en déplacements. La difficulté en calcul de coque est de faire face au verrouillage qui conduit à une forte dégradation de la convergence de la solution. Le cadre NURBS ne permet pas lui-même de résoudre ce problème. La meilleure efficacité de l’approximation NURBS ne peut donc être atteinte sans le développement de techniques particulières pour supprimer le verrouillage. C’est le but de cette thèse dans le cadre des éléments massifs coque. Le premier travail a consisté, sur un problème de poutre courbe, à étendre les méthodes sans verrouillage habituelles au contexte NURBS. Deux nouvelles stratégies ont alors été développées pour les NURBS : la première est basée sur une technique d’intégration réduite tandis que la seconde fait appel à une projection B-bar. Le formalisme général des méthodes B-bar semblant plus adapté, c’est celui-ci que nous avons développé ensuite pour les éléments massifs coque. Plus précisément, nous avons mis en place une formulation mixte de laquelle nous avons pu dériver la projection B-bar équivalente. Cette démarche constitue d’un point de vue théorique le résultat principal du travail : une méthode systématique pour construire une projection B-bar consistante est de passer par une formulation mixte. D’un point de vue mise en œuvre, l’idée principale pour traiter le verrouillage des éléments massifs coque a été de modifier l’interpolation de la moyenne dans l’épaisseur de la coque des composantes du tenseur des contraintes. Un contrôle de hourglass a aussi été ajouté pour stabiliser l’élément dans certaines situations. L’élément obtenu est de bonne qualité pour une interpolation de bas degrés et des maillages grossiers : la version quadratique semble plus précise que des éléments standards NURBS de degré 4. La méthode proposée conduit à une matrice de rigidité globale de petite taille mais pleine. Ce problème est inhérent aux NURBS. Il a pu être limité ici en utilisant une procédure de type moindres carrés locaux pour approcher la projection B-bar. Finalement, l’élément mixte a été étendu avec succès en non linéaire géométrique ce qui témoigne du potentiel de la méthode pour mener des simulations complexesWith the introduction of IsoGeometric Analysis (IGA), the calculation of shell has become possible using the exact geometry for coarse meshes. In order to that, Lagrange polynomials are replaced by NURBS functions, the most commonly used technology in Computer-Aided Design, to perform the analysis. In addition, NURBS functions have a higher order of continuity, which leads to higher per-degree-of-freedom accuracy of the shell solution than with classical Finite Elements Analysis (FEA). IGA has now been widely applied in shell formulations. Nevertheless, it has still rarely been studied in the context of solid-shell models. This second shell approach is, however, very useful for engineers, since it enables to calculate thin structures using 3D solid elements, i.e. involving only displacements as degrees of freedom. The difficulty in shell analysis is to deal with locking which highly deteriorates the convergence of the solution. The NURBS framework does not enable to solve the problem directly. Then, to really benefit from NURBS in shells, specific strategies need to be implemented to answer the locking issue. This is the goal of the thesis in the context of solid-shell elements. The first work has consisted, on a curved beam problem, in extending the locking-free methods usually encountered in FEA to the NURBS context. The study resulted in the development of two new strategies for NURBS: the first one is based on a selective reduced integration technique and the second one makes use of a B-bar projection. The global formalism offered by the B-bar method appearing more suitable for NURBS, it has then been investigated for solid-shell elements. More precisely, a mixed formulation has first been elaborated from which, it has been possible to derive the equivalent B-bar projection. From a theoretical point of view, this strategy constitutes the most important result of this work: a systematic method to construct a consistent B-bar projection is to write a mixed formulation. With regards to the implementation, the main idea to treat locking of the solid-shell elements has been to modify the average of the strain and stress components across the thickness of the shell. Hourglass control has also been added to stabilize the element in particular situations. The resulting element is of good quality for low order approximations and coarse meshes: the quadratic version seems to be more accurate than basic NURBS elements of order 4. The proposed method leads to a global stiffness matrix of small size but full. This problem is inherent to NURBS functions. It has been limited here by using a local least squares procedure to approach the B-bar projection. Finally, the mixed element has been successfully extended to geometric non-linearity which reflects the ability of the methodology to be used in complex simulations
9
Schwanke, Ullrich. "Trigger and reconstruction farms in the HERA-B experiment and algorithms for a Third Level Trigger." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2000. http://dx.doi.org/10.18452/14565.
Full textAbstract:
Das HERA-$B$-Experiment am Deutschen Elektronen-Synchrotron (DESY) in Hamburg dient der Untersuchung der Physik von Teilchen, die $b$-Quarks enthalten. Der Schwerpunkt des Ex\-pe\-ri\-mentes liegt auf der Messung der CP-Verletzung im System der neutralen $B$-Mesonen. Es wird erwartet, dass die pr\"azise Bestimmung der CP-Asymmetrie im Zerfallskanal $B^0(\bar{B}^0)\to J/\psi K_S^0$ gro{\ss}en Einfluss auf die Weiterentwicklung des Standardmodells der Elementarteilchenphysik und g\"angiger kosmologischer Theorien haben wird. Das HERA-$B$-Experiment nutzt den Protonenstrahl des HERA-Ringes, um in Kollisionen mit einem feststehenden Target paarweise $B$-Hadronen zu erzeugen. Die Wechselwirkungen werden in einem Vorw\"artsspektrometer mit etwa 600.000 Auslesekan\"alen nachgewiesen. Aufgrund der relativ niedrigen Schwerpunktsenergie von 41.6\,GeV sind Ereignisse mit $b$-Quarks im Vergleich zu Wechselwirkungen mit leichteren Quarks um etwa sechs Gr\"o{\ss}enordnungen unterdr\"uckt. Die Selektion von Signalereignissen stellt daher eine besondere Herausforderung dar. Sie wird von einem vierstufigen Datennahme- und Triggerystem \"ubernommen, das die Ereignisrate von 10\,MHz auf etwa 20\,Hz reduziert. Neben speziell entwickelter Elektronik werden im Triggersystem mehrere hundert handels\"ubliche PCs eingesetzt. Die Computer sind in zwei so genannten PC-Farmen mit jeweils mehr als 200 Prozessoren angeordnet, die die Rechenkapazit\"at f\"ur Triggerentscheidungen und die prompte Analyse der Ereignisdaten zur Verf\"ugung stellen. Auf der einen Farm laufen schnelle Triggerprogramme mit einer Rechenzeit von etwa 1--100\,ms pro Ereignis ab. Die andere Farm rekonstruiert die Ereignisse online, bevor die Daten auf Band dauerhaft archiviert werden. Die pro Ereignis aufgewandte Rechenzeit liegt dabei im Bereich einiger Sekunden. Die vorliegende Arbeit behandelt zwei Themenkreise. Einerseits wird die technische Umsetzung der Trigger- und der Rekonstruktionsfarm beschrieben. Besonderes Augenmerk liegt dabei auf den Software-Systemen, die den Farmen erforderliche Kalibrationsdaten verf\"ugbar machen und die zentrale \"Uberwachung der Ergebnisse der ablaufenden Programme gestatten. Der Hauptteil der Arbeit besch\"aftigt sich mit Algorithmen f\"ur eine dritte Triggerstufe, die zus\"atzlich zu existierenden Programmen auf der Triggerfarm zum Einsatz kommen sollen. Der Zerfall $B^0(\bar{B}^0)\to J/\psi X$ hat eine sehr klare Signatur, wenn das $J/\psi$ in ein $e^+e^-$- oder $\mu^+\mu^-$-Paar zerf\"allt. Im Triggersystem wird nach einem Paar entgegengesetzt geladener Leptonen des gleichen Typs gesucht, deren invariante Masse der des $J/\psi$ entspricht und deren Spuren von einem gemeinsamen Vertex in der N\"ahe des Targets ausgehen. Es wird davon ausgegangen, dass die Ausnutzung aller kinematischen Zwangsbedingungen ausreicht, um diesen Zerfallskanal klar von Untergrundereignissen zu trennen. Die dritte Triggerstufe soll dagegen auf Signalprozesse mit weniger kinematischen Beschr\"ankungen angewandt werden. Solche Ereignisse entstehen zum Beispiel dann, wenn zwei in der Proton-Target-Kollision erzeugte $B$-Mesonen semileptonisch zerfallen. Das Triggersystem selektiert lediglich die beiden Leptonen, die aber hier nicht von einem gemeinsamen Vertex kommen. Die dritte Triggerstufe soll f\"ur derartige Zerfallstopologien innerhalb von 100\,ms pro Ereignis weitere Kriterien zur Unterscheidung von Signal- und Untergrundprozessen aus den Daten extrahieren. In der Arbeit wird anhand von Monte-Carlo-Studien untersucht, inwieweit die Daten des Silizium-Vertexdetektors des Experimentes zur Entscheidungsfindung einer dritten Triggerstufe beitragen k\"onnen. Dabei wird die Rekonstruktion von Spuren aus der Zerfallskaskade der $B$-Hadronen zus\"atzlich zu den von der vorhergehenden Triggerstufe selektierten Lep\-ton\-en an\-ge\-strebt. Mithilfe einer schnellen Mustererkennung f\"ur den Vertexdetektor wird gezeigt, dass das Auffinden aller Spuren und die Anwendung von Triggeralgorithmen innerhalb des vorgegebenen Zeitfensters von 100\,ms m\"oglich sind. Die Bestimmung der Spurparameter nahe der Targetregion macht von der Methode des Kalman-Filters Gebrauch, um der Vielfachstreuung im Detektormaterial Rechnung zu tragen. Dabei tritt das Problem auf, dass weder der Impuls der gefundenen Spuren bekannt ist, noch die Materialverteilung im Vertexdetektor aus Zeitgr\"unden in aller Strenge ber\"ucksichtigt werden kann. Durch geeignete N\"aherungen gelingt es, eine ausreichende Genauigkeit f\"ur die Spurparameter zu erreichen. Die aufgefundenen Teilchen bilden den Ausgangspunkt f\"ur Triggeralgorithmen. Hierbei wird untersucht, welche Methoden am besten geeignet sind, um Signal- und Unter\-grund\-ereignisse voneinander zu trennen. Es erweist sich, dass das Auffinden von Spuren mit gro{\ss}em Impaktparameter aussichtsreichere Ans\"atze als eine Suche nach Sekund\"arvertices bietet.The HERA-$B$ experiment at Deutsches Elektronen-Synchrotron (DESY) Hamburg aims at investigating the physics of particles containing $b$ quarks. The experiment focusses on measuring CP violation in the system of neutral $B$ mesons. It is expected that the precise determination of the CP asymmetry in the channel $B^0(\bar{B}^0)\to J/\psi K_S^0$ will have an impact on the further development of the Standard Model of Elementary Particle Physics and cosmological theories. The HERA-$B$ experiment uses the proton beam of the HERA storage ring in fixed-target mode. $B$ hadrons are produced in pairs when protons from the beam halo interact with target nuclei. The interactions are recorded by a forward-spectrometer with roughly 600.000 readout channels. At the HERA-$B$ centre-of-mass energy of 42.6\,GeV, the $b\bar{b}$ cross section is only a tiny fraction of the total inelastic cross section. Only one in about 10$^6$ events contains $b$ quarks, which turns the selection of signal events into a particular challenge. The selection is accomplished by a four-stage data acquisition and trigger system reducing the event rate from 10\,MHz to about 20\,Hz. Besides custom-made electronics, several hundreds of PCs are used in the trigger system. The computers are arranged in two so-called PC farms with more than 200 processors each. The PC farms provide the computing capacity for trigger decisions and the prompt analysis of event data. One farm executes fast trigger programs with a computing time of 1--100\,ms per event. The other farm performs online reconstruction of the events before data are archived on tape. The computing time per event is in the range of several seconds. This thesis covers two topics. In the beginning, the technical implementation of the trigger and the reconstruction farm are described. In doing so, emphasis is put on the software systems which make calibration data available to the farms and which provide a centralised view on the results of the executing processes. The principal part of this thesis deals with algorithms for a Third Level Trigger. This trigger is to come into operation on the trigger farm together with existing programs. Processes of the type $B^0(\bar{B}^0)\to J/\psi X$ have a very clean signature when the $J/\psi$ decays to a $e^+e^-$ or $\mu^+\mu^-$ pair. The trigger system attempts to identify two unlike-sign leptons of the same flavour whose invariant mass matches the $J/\psi$. In later steps, the tracks are required to originate from a common vertex close to the target. It is assumed that these kinematic constraints are sufficient to pick out events of this type among the copious background processes. In contrast, the Third Level Trigger is to be applied to signal processes with fewer kinematic constraints. Such events occur for example when two $B$ mesons, which were created in a proton-target collision, decay semileptonically. The trigger system selects merely the two leptons which do not originate from a common vertex in this case. The Third Level Trigger has 100\,ms at its disposal to extract further criteria from the data which can serve to distinguish between signal and background events. This thesis investigates with the aid of Monte-Carlo simulations how the data of the experiment's silicon vertex detector can contribute to the decisions of a Third Level Trigger. The trigger aims at reconstructing tracks from the decay cascade of $B$ mesons in addition to the leptons selected by the preceding trigger levels. A fast pattern recognition for the vertex detector demonstrates that the reconstruction of all tracks and the application of trigger algorithms are possible within the given time slot of 100\,ms. The determination of track parameters in the target region exploits the Kalman-filter method to account for the multiple scattering of particles in the detector material. The application of this method is, however, made difficult by two facts. First, the momentum of the reconstructed tracks is not known. And, second, the material distribution in the detector cannot be taken into consideration in detail due to timing limitations. Adequate approximations for the momentum and the material traversed by a particle help to accomplish a sufficient accuracy of the track parameters. The reconstructed tracks constitute the starting point of several trigger algorithms, whose suitability to select signal events is investigated. Our studies indicate that the reconstruction of tracks with large impact parameters is a more promising approach than a search for secondary vertices.
10
BURGONSE, FAVERIN EMMANUELLE. "Etude des profils de restriction enzymatique des genes codant pour les arn ribosomaux (ribotypes) de 72 souches de staphylococcus aureus productrices ou non d'enterotoxine b." Lyon 1, 1992. http://www.theses.fr/1992LYO1M309.
Full textBooks on the topic "B-720"
1
Guessous, Azeddine. Le règne de 'Umar B. 'Abd al-'Aziz (99-101) (717-720): L'homme et ses œuvres. Lille: A.N.R.T. Université de Lille III, 1987.
Find full text
2
1948-, Weeks Gerald R., and Sendak Shelley K, eds. A clinician's guide to systemic sex therapy. New York, NY: Brunner-Routledge, 2009.
Find full text
3
New Jersey. Legislature. Senate. Institutions, Health, and Welfare Committee. Public hearing before Senate Institutions, Health and Welfare Committee, Senate Bill no. 2063 (establishes and Office on Minority Health): February 13, 1990, Room B-721, UMDNJ-Dental School, Newark, New Jersey. Trenton, N.J: The Committee, 1990.
Find full text
4
1958-, Seymour Jane, ed. Reflections on palliative care. Buckingham: Open University Press, 1999.
Find full text
5
Application of QFT to the problem of failed in-flight controllers during approach and landing of a B-720 aircraft. [Washington, D.C: National Aeronautics and Space Administration, 1996.
Find full text
6
Melville, Sarah C. Campaigns of Sargon II, King of Assyria, 721-705 B. C. University of Oklahoma Press, 2021.
Find full text
7
Clinician's Guide to Systemic Sex Therapy. Routledge, 2014.
Find full text
8
Clinician's Guide to Systemic Sex Therapy. Taylor & Francis Group, 2020.
Find full text
9
Clinician's Guide to Systemic Sex Therapy. Taylor & Francis Group, 2015.
Find full text
10
Clinician's Guide to Systemic Sex Therapy. Taylor & Francis Group, 2020.
Find full textBook chapters on the topic "B-720"
1
Rossi, Robert J., Belinda M. Jackson, Ai-Hong Zhang, and David W. Scott. "Tolerance Induction via B-Cell Delivered Gene Therapy." In Methods in Molecular Biology, 471–87. Totowa, NJ: Humana Press, 2012. http://dx.doi.org/10.1007/978-1-60761-720-4_23.
Full text
2
Kaminski, Denise A., Chungwen Wei, Alexander F. Rosenberg, F. Eun-Hung Lee, and Ignacio Sanz. "Multiparameter Flow Cytometry and Bioanalytics for B Cell Profiling in Systemic Lupus Erythematosus." In Methods in Molecular Biology, 109–34. Totowa, NJ: Humana Press, 2012. http://dx.doi.org/10.1007/978-1-60761-720-4_6.
Full text
3
Hirata, Akihiko, Yoshihiko Hirotsu, Kenji Amiya, Nobuyuki Nishiyama, and Akihisa Inoue. "Change of Nanostructure in (Fe0.5Co0.5)72B20Si4Nb4 Metallic Glass on Annealing." In THERMEC 2006, 2077–81. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-428-6.2077.
Full text
4
"Anhang." In Augenheilkunde, edited by Gerhard Lang. Stuttgart: Georg Thieme Verlag, 2008. http://dx.doi.org/10.1055/b-0033-720.
Full text
5
"720 Landmarken, Achsen, Biomechanik." In Manuelle Medizin 2, edited by Ulrich W. Böhni, Markus Lauper, and Hermann A. Locher. Stuttgart: Georg Thieme Verlag, 2012. http://dx.doi.org/10.1055/b-0034-33739.
Full text
6
"Prepositions A Introduction 701–704 B Simple and compound prepositions 705–719 C Prepositional use 720–731." In Swedish: A Comprehensive Grammar, 349–435. Routledge, 2003. http://dx.doi.org/10.4324/9780203426203-12.
Full text
7
Anthony, Sean W. "A ‘Rediscovered’ Letter of the Umayyad Caliph ʿUmar b. ʿAbd al-ʿAzīz (r. 99–101/717–720)." In Rulers as Authors in the Islamic World, 47–88. BRILL, 2024. http://dx.doi.org/10.1163/9789004690615_005.
Full text
8
"Morsel 72A &B." In Daily Morsels, 214–16. Kachere Series, 2024. http://dx.doi.org/10.2307/jj.13049258.75.
Full text
9
Marks II, Robert J. "Signal Recovery." In Handbook of Fourier Analysis & Its Applications. Oxford University Press, 2009. http://dx.doi.org/10.1093/oso/9780195335927.003.0015.
Full textAbstract:
The literature on the recovery of signals and images is vast (e.g., [23, 110, 112, 257, 391, 439, 791, 795, 933, 934, 937, 945, 956, 1104, 1324, 1494, 1495, 1551]). In this Chapter, the specific problem of recovering lost signal intervals from the remaining known portion of the signal is considered. Signal recovery is also a topic of Chapter 11 on POCS. To this point, sampling has been discrete. Bandlimited signals, we will show, can also be recovered from continuous samples. Our definition of continuous sampling is best presented by illustration.Asignal, f (t), is shown in Figure 10.1a, along with some possible continuous samples. Regaining f (t) from knowledge of ge(t) = f (t)Π(t/T) in Figure 10.1b is the extrapolation problem which has applications in a number of fields. In optics, for example, extrapolation in the frequency domain is termed super resolution [2, 40, 367, 444, 500, 523, 641, 720, 864, 1016, 1099, 1117]. Reconstructing f (t) from its tails [i.e., gi(t) = f (t){1 − Π(t/T)}] is the interval interpolation problem. Prediction, shown in Figure 10.1d, is the problem of recovering a signal with knowledge of that signal only for negative time. Lastly, illustrated in Figure 10.1e, is periodic continuous sampling. Here, the signal is known in sections periodically spaced at intervals of T. The duty cycle is α. Reconstruction of f (t) from this data includes a number of important reconstruction problems as special cases. (a) By keeping αT constant, we can approach the extrapolation problem by letting T go to ∞. (b) Redefine the origin in Figure 10.1e to be centered in a zero interval. Under the same assumption as (a), we can similarly approach the interpolation problem. (c) Redefine the origin as in (b). Then the interpolation problem can be solved by discarding data to make it periodically sampled. (d) Keep T constant and let α → 0. The result is reconstructing f (t) from discrete samples as discussed in Chapter 5. Indeed, this model has been used to derive the sampling theorem [246]. Figures 10.1b-e all illustrate continuously sampled versions of f (t).
10
"Innentitel." In Deutsche Gesellschaft für Innere Medizin, edited by Hans-Peter Schuster and Maximilian Guido Broglie. Stuttgart: Georg Thieme Verlag, 2010. http://dx.doi.org/10.1055/b-0033-721.
Full textConference papers on the topic "B-720"
1
Yao, M., H. Belhadjhamida, D. Lee, and J. Zheng. "A Hybrid Thermal Spray and Sinter Fusion Process to Apply Wear and Corrosion Resistant Coatings." In ITSC 2016, edited by A. Agarwal, G. Bolelli, A. Concustell, Y. C. Lau, A. McDonald, F. L. Toma, E. Turunen, and C. A. Widener. DVS Media GmbH, 2016. http://dx.doi.org/10.31399/asm.cp.itsc2016p0121.
Full textAbstract:
Abstract This work introduces a hybrid spray-and-fuse process and a modified CoCrMoC (Stellite) alloy that significantly expand the manufacturing window for wear-resistant coatings. The Co-based alloy was produced by adding Ni, B, and Si to Stellite 720 to lower its melting points and expand its melting range thereby improving the sprayability and fusibility of the material. The modified alloy was deposited on Inconel 718 balls and 1 in. diameter coupons by HVOF spraying and coating samples were sinter fused at high temperatures followed by furnace cooling. The processes used are described and test results are presented, showing that thick, metallurgically bonded coatings were achieved with high hardness and excellent wear and corrosion resistance.
2
Bertoncello, João C. B., Mariana R. Tagliari, Tiago B. Coser, Felippe S. Kerpen, Luciano M. Santana, Marcelo T. P. Paes, and Carlos E. F. Kwietniewski. "Evaluation of Aluminum-Coated Flexible Pipe Armour Wires Exposed to a Sour Environment." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78719.
Full textAbstract:
In general, tensile armour wires of flexible pipes that are designed for sour applications have their strength limited to 850 MPa due to the possibility of embrittlement phenomena to occur. A Thermally Sprayed Aluminum (TSA) coating 250 μm thick was applied to high strength steels with UTS of 1470 MPa and YS of 1280 MPa. Three specimens conditions were evaluated: full coating, no coating and coating with a designed defect. The load was applied using a four point bending fixture, maintaining a constant stress of 90% of material’s yield strength. All tests were performed in accordance with recommendations of NACE TM 0177 method B. The test solution was distilled water with NaCl 5.0% saturated with a gas mixture of 10,000 ppm of H2S in balance with CO2 during 720 hours. It was observed that samples without coating were more susceptible to the effect of the environment presenting higher degradation and failure. The fractures presented typical characteristic of the Sulfide Stress Corrosion Cracking (SSCC). Furthermore, it was detected parallel cracks to the surface of the wires indicating the embrittlement phenomenon of Hydrogen-Induced Cracking (HIC). On the other hand, coated samples with and without defects did not fail during the 720 hours of testing. A posterior non-destructive testing and a metallographic analysis did not identify the presence of cracks. These results were attributed to the physical barrier of the aluminum coating and the cathodic protection generated by the preferential aluminum corrosion. This preliminary study shows that TSA coatings can be a good alternative to increase the corrosion resistance of armour wires in sour environments allowing the application of higher strength steels.
3
Bratishko, Viacheslav, Sergey Shulga, Olena Tigunova, and Oksana Achkevych. "Ultrasonic cavitation of lignocellulosic raw materials as effective method of preparation for butanol production." In 22nd International Scientific Conference Engineering for Rural Development. Latvia University of Life Sciences and Technologies, Faculty of Engineering, 2023. http://dx.doi.org/10.22616/erdev.2023.22.tf053.
Full textAbstract:
Six types of native and ultrasonic cavitation-treated non-cereal plant biomass as a substrate for cultivation of the butanol-producing strain Clostridium sp. IMB B-7570 were studied. During the research, an ultrasonic bath with emitters with a total power of 720 W and an ultrasound frequency of 28 kHz was used. The weighted average size of the straw particles was 78 μm. As a result of the research, the accumulation of butanol in the culture liquid after 72 hours of fermentation was determined. After fermentation of the producer strain Clostridium sp. IMB B-7570 all three products of the acetone-butanol-ethanol process were detected in the culture liquid. It was established that cultivation of the strain on pre-treated biomass significantly increases the accumulation of butanol in the culture liquid. The highest accumulation of butanol (0.7 g·l-1) was obtained using crushed rape biomass as a substrate. In this case, ethanol and acetone were present in small quantities – 0.05 g·l-1 and 0.02 g·l-1, respectively. A significant increase in the yield of biobutanol compared to untreated experiments is the result of the mechanical destruction of the lignocellulosic structure of plant biomass due to the cavitation effect of ultrasound, which is confirmed by numerous experiments on various types of raw materials. A comparative analysis of the research results established that the accumulation of solvents after ultrasonic cavitation of the non-grain part of plants correlates with acid-enzymatically prepared substrate, but ultrasonic cavitation is more effective than hydrolysis, and therefore this method of preliminary preparation of biomass for fermentation can be more competitive in industrial conditions.
4
Bekaii-Saab, Tanios, Lai Wei, Robert Wesolowski, Daniel Ahn, Christina Wu, Maryam Lustberg, Amir Mortazavi, Bhuvaneswari Ramaswamy, Jay Overholser, and Pravin Kaumaya. "Abstract CT017: A Phase Ib of a combination of two chimeric (Trastuzumab-like and Pertuzumab-like) HER-2 B cell peptide vaccine emulsified in ISA 720 and nor-MDP adjuvant in patients with advanced solid tumors." In Proceedings: AACR Annual Meeting 2019; March 29-April 3, 2019; Atlanta, GA. American Association for Cancer Research, 2019. http://dx.doi.org/10.1158/1538-7445.sabcs18-ct017.
Full text
5
Bekaii-Saab, Tanios, Lai Wei, Robert Wesolowski, Daniel Ahn, Christina Wu, Maryam Lustberg, Amir Mortazavi, Bhuvaneswari Ramaswamy, Jay Overholser, and Pravin Kaumaya. "Abstract CT017: A Phase Ib of a combination of two chimeric (Trastuzumab-like and Pertuzumab-like) HER-2 B cell peptide vaccine emulsified in ISA 720 and nor-MDP adjuvant in patients with advanced solid tumors." In Proceedings: AACR Annual Meeting 2019; March 29-April 3, 2019; Atlanta, GA. American Association for Cancer Research, 2019. http://dx.doi.org/10.1158/1538-7445.am2019-ct017.
Full text
6
Erman, M., N. Vodjdani, J. B. Theeten, P. Jarry, and P. Stephan. "Passive and active GaAs and InP integrated-optic components fabricated using localized vapor phase epitaxy." In Integrated and Guided Wave Optics. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/igwo.1986.wdd2.
Full textAbstract:
Various fabrication methods for semiconductor waveguides have already been proposed. Recently,1 localized vapor phase epitaxy (LOCVPE) (a chloride process) was found to be an attractive alternative solution to the conventional etching-based techniques (rib or ridge waveguides). Losses of 1 dB/cm in GaAs have been measured, the LOCVPE process has been further developed, and new structures have been made on both GaAs and InP. Figure 1 illustrates three possible waveguide structures. In Fig. 1(a) an external waveguide is fabricated by epitaxial growth through a stripe opening in a dielectric overlayer. The waveguide’s cross section depends on the growth conditions but is, in all cases, limited by perfect crystallographic planes. Using a similar dielectric overlayer and performing an in situ high-temperature (720°C) chemical etching (HCI) prior to growth, an embedded waveguide can be obtained [Fig. 1(b)]. Figure 1(c) illustrates the case when a V-groove is made on a substrate which is not covered with the dielectric film, the VPE anisotropy being then adjusted to obtain a perfectly planarized waveguide structure. For all these structures, the main advantage of LOCVPE is to grow extremely smooth facets and thus to reduce the losses from scattered light. The measured losses are dominated by the free electron absorption of the substrate. The importance of this absorption for various waveguide structures as well as doping of the substrate will be discussed.
7
Eckersley, John, and David Axline. "B-727 Brake Components Salvaged by Shot Peen Forming." In Airframe Finishing, Maintenance & Repair Conference & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1991. http://dx.doi.org/10.4271/910935.
Full text
8
Jamal, Habibullah, and Ali Adnan Malik. "Multi-channel implementation of G .729 A/B on FPGA." In 2007 International Conference on Microelectronics - ICM. IEEE, 2007. http://dx.doi.org/10.1109/icm.2007.4497655.
Full text
9
Tapia Olivas, Juan Carlos, René Delgado Rendón, Emilio Hernández Martínez, Felipe Noh Pat, Eric Efrén Villanueva Vega, and María Cristina Castañón Bautista. "Evaluation of Wave Energy in the Pacific Ocean for Baja California State in Mexico." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-52857.
Full textAbstract:
According to the World Energy Council (WEC) the estimated energy of the wave power in the world is in the range of 8,000 to 80,000 TWh/year to depths of 100 meters or higher and actually the utilization of wave energy resource it is possible because it has been implemented in countries like Australia, Indonesia, Nigeria, United Kingdom, Norway, Portugal and Colombia evaluating different types of marine technologies that take the advantage of the kinetic energy in the ocean waves. Mexico according to the National Institute of Statistics and Information (INEGI) has a land area of 1,972,550 km2 of which has a coastline of 11,150 km having potential for the use of their coasts. Baja California with a land area of 71,445 km2 (3.6% of the country) is located on a peninsula in northwest Mexico and has 720 km of coastline on the Pacific Ocean (6.4% nationally) with a range of depths of 25.6 m to 650 m at a distance of the coastline of 15 km, which makes it suitable to evaluate the use of wave energy at local sites. With the completion of this work will contribute to the characterization of the sites that will present the best technical and economic conditions for its implementation, considering the physical characteristics of the site as well as connection points on the transmission lines operated by the Federal Electricity Commission (CFE). For the preparation of this study was carried out in three stages: a) Site Selection, b) Evaluation of Wave Energy and c) Economic evaluation of sites using RETScreen. Based on the characteristics of the coast of Baja California the results obtained are the following: 1) 18 sites were selected with a sea depth averaged of 50 m, the annual density power was 7.5 kW/m, this represents a potential of 210 MW considering an average length of 2 km in each site, 2) The economic evaluation of this type of project was for a period of 30 years in RETScreen, considers an annual inflation rate of 5% and obtains an investment cost of 9,538 US $/kW for this type of generation. We conclude that this source of energy will reduce dependence on fossil fuels and contribute to the generation of electricity in the state of Baja California diversifying the energetic matrix state by the use of clean and renewable sources, which represents an investment opportunity between the public and private sector.
10
Miao, Lei, Zexin Liu, Chen Hu, Vaclav Eksler, Stephane Ragot, Claude Lamblin, Balazs Kovesi, et al. "G.711.1 Annex D and G.722 Annex B - New ITU-T superwideband codecs." In ICASSP 2011 - 2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2011. http://dx.doi.org/10.1109/icassp.2011.5947537.
Full textReports on the topic "B-720"
1
Lundberg, Roger. The determination of normal bone conducted speech results utilizing a radioear B-72 bone oscillator. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.3061.
Full text
2
Burns, L. E. 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island (resistivity contours lines included). Alaska Division of Geological & Geophysical Surveys, 1999. http://dx.doi.org/10.14509/315.
Full text
3
Burns, L. E. 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island (topography included; full color, 600 dpi). Alaska Division of Geological & Geophysical Surveys, 1999. http://dx.doi.org/10.14509/279.
Full text
4
Burns, L. E. 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island (blueline; resistivity contours and section lines included). Alaska Division of Geological & Geophysical Surveys, 1999. http://dx.doi.org/10.14509/299.
Full text
5
Hajarizadeh, Behzad, Jennifer MacLachlan, Benjamin Cowie, and Gregory J. Dore. Population-level interventions to improve the health outcomes of people living with hepatitis B: an Evidence Check brokered by the Sax Institute for the NSW Ministry of Health, 2022. The Sax Institute, August 2022. http://dx.doi.org/10.57022/pxwj3682.
Full textAbstract:
Background An estimated 292 million people are living with chronic hepatitis B virus (HBV) infection globally, including 223,000 people in Australia. HBV diagnosis and linkage of people living with HBV to clinical care is suboptimal in Australia, with 27% of people living with HBV undiagnosed and 77% not receiving regular HBV clinical care. This systematic review aimed to characterize population-level interventions implemented to enhance all components of HBV care cascade and analyse the effectiveness of interventions. Review questions Question 1: What population-level interventions, programs or policy approaches have been shown to be effective in reducing the incidence of hepatitis B; and that may not yet be fully rolled out or evaluated in Australia demonstrate early effectiveness, or promise, in reducing the incidence of hepatitis B? Question 2: What population-level interventions and/or programs are effective at reducing disease burden for people in the community with hepatitis B? Methods Four bibliographic databases and 21 grey literature sources were searched. Studies were eligible for inclusion if the study population included people with or at risk of chronic HBV, and the study conducted a population-level interventions to decrease HBV incidence or disease burden or to enhance any components of HBV care cascade (i.e., diagnosis, linkage to care, treatment initiation, adherence to clinical care), or HBV vaccination coverage. Studies published in the past 10 years (since January 2012), with or without comparison groups were eligible for inclusion. Studies conducting an HBV screening intervention were eligible if they reported proportion of people participating in screening, proportion of newly diagnosed HBV (participant was unaware of their HBV status), proportion of people received HBV vaccination following screening, or proportion of participants diagnosed with chronic HBV infection who were linked to HBV clinical care. Studies were excluded if study population was less than 20 participants, intervention included a pharmaceutical intervention or a hospital-based intervention, or study was implemented in limited clinical services. The records were initially screened by title and abstract. The full texts of potentially eligible records were reviewed, and eligible studies were selected for inclusion. For each study included in analysis, the study outcome and corresponding 95% confidence intervals (95%CIs) were calculated. For studies including a comparison group, odds ratio (OR) and corresponding 95%CIs were calculated. Random effect meta-analysis models were used to calculate the pooled study outcome estimates. Stratified analyses were conducted by study setting, study population, and intervention-specific characteristics. Key findings A total of 61 studies were included in the analysis. A large majority of studies (study n=48, 79%) included single-arm studies with no concurrent control, with seven (12%) randomised controlled trials, and six (10%) non-randomised controlled studies. A total of 109 interventions were evaluated in 61 included studies. On-site or outreach HBV screening and linkage to HBV clinical care coordination were the most frequent interventions, conducted in 27 and 26 studies, respectively. Question 1 We found no studies reporting HBV incidence as the study outcome. One study conducted in remote area demonstrated that an intervention including education of pregnant women and training village health volunteers enhanced coverage of HBV birth dose vaccination (93% post-intervention, vs. 81% pre-intervention), but no data of HBV incidence among infants were reported. Question 2 Study outcomes most relevant to the HBV burden for people in the community with HBV included, HBV diagnosis, linkage to HBV care, and HBV vaccination coverage. Among randomised controlled trials aimed at enhancing HBV screening, a meta-analysis was conducted including three studies which implemented an intervention including community face-to-face education focused on HBV and/or liver cancer among migrants from high HBV prevalence areas. This analysis demonstrated a significantly higher HBV testing uptake in intervention groups with the likelihood of HBV testing 3.6 times higher among those participating in education programs compared to the control groups (OR: 3.62, 95% CI 2.72, 4.88). In another analysis, including 25 studies evaluating an intervention to enhance HBV screening, a pooled estimate of 66% of participants received HBV testing following the study intervention (95%CI: 58-75%), with high heterogeneity across studies (range: 17-98%; I-square: 99.9%). A stratified analysis by HBV screening strategy demonstrated that in the studies providing participants with on-site HBV testing, the proportion receiving HBV testing (80%, 95%CI: 72-87%) was significantly higher compared to the studies referring participants to an external site for HBV testing (54%, 95%CI: 37-71%). In the studies implementing an intervention to enhance linkage of people diagnosed with HBV infection to clinical care, the interventions included different components and varied across studies. The most common component was post-test counselling followed by assistance with scheduling clinical appointments, conducted in 52% and 38% of the studies, respectively. In meta-analysis, a pooled estimate of 73% of people with HBV infection were linked to HBV clinical care (95%CI: 64-81%), with high heterogeneity across studies (range: 28-100%; I-square: 99.2%). A stratified analysis by study population demonstrated that in the studies among general population in high prevalence countries, 94% of people (95%CI: 88-100%) who received the study intervention were linked to care, significantly higher than 72% (95%CI: 61-83%) in studies among migrants from high prevalence area living in a country with low prevalence. In 19 studies, HBV vaccination uptake was assessed after an intervention, among which one study assessed birth dose vaccination among infants, one study assessed vaccination in elementary school children and 17 studies assessed vaccination in adults. Among studies assessing adult vaccination, a pooled estimate of 38% (95%CI: 21-56%) of people initiated vaccination, with high heterogeneity across studies (range: 0.5-93%; I square: 99.9%). A stratified analysis by HBV vaccination strategy demonstrated that in the studies providing on-site vaccination, the uptake was 78% (95%CI: 62-94%), significantly higher compared to 27% (95%CI: 13-42%) in studies referring participants to an external site for vaccination. Conclusion This systematic review identified a wide variety of interventions, mostly multi-component interventions, to enhance HBV screening, linkage to HBV clinical care, and HBV vaccination coverage. High heterogeneity was observed in effectiveness of interventions in all three domains of screening, linkage to care, and vaccination. Strategies identified to boost the effectiveness of interventions included providing on-site HBV testing and vaccination (versus referral for testing and vaccination) and including community education focussed on HBV or liver cancer in an HBV screening program. Further studies are needed to evaluate the effectiveness of more novel interventions (e.g., point of care testing) and interventions specifically including Indigenous populations, people who inject drugs, men who have sex with men, and people incarcerated.
6
Rich, Megan, Charles Beightol, Christy Visaggi, Justin Tweet, and Vincent Santucci. Vicksburg National Military Park: Paleontological resource inventory (sensitive version). National Park Service, March 2023. http://dx.doi.org/10.36967/2297321.
Full textAbstract:
Vicksburg National Military Park (VICK) was established for its historical significance as a one of the principle military sieges resulting in a turning point during the American Civil War. The steep terrain around the city of Vicksburg was integral in the military siege, providing high vantage points and a substrate that was easy to entrench for the armies, but unknown to many is the fossil content, particularly a diversity of fossil mollusks. These fossils at VICK are important paleontological resources which have yet to receive focused attention from park staff, visitors, and researchers. The park’s geology is dominated by windblown silt from the last Ice Age which overlays river-transported gravels and bedrock of the late Oligocene–early Miocene-age Catahoula Formation or early Oligocene Vicksburg Group. The park is home to the type section (a geological reference locality upon which a formation is based) for the Mint Spring Formation, one of the most fossiliferous formations in this group (Henderson et al. 2022). Beginning roughly 32 million years ago (Dockery 2019), the early Oligocene deposits of the Vicksburg Group were deposited as the sea level along the Gulf Coast shore repeatedly rose and fell. The eponymously named Vicksburg Group is comprised of, from oldest to youngest, the Forest Hill, Mint Spring, Marianna Limestone, Glendon Limestone, Byram, and Bucatunna Formations. Each of these formations are within VICK’s boundaries, in addition to outcrops of the younger Catahoula Formation. Paleozoic fossils transported by the ancestral Mississippi River have also been redeposited within VICK as pre-loess stream gravels. Overlying these layers is the Quaternary-age silt which composes the loess found throughout VICK, meaning the park’s fossils span the entire Phanerozoic Eon. The fossils of VICK consist mostly of near-shore marine Oligocene invertebrates including corals, bryozoans, bivalves, gastropods, scaphopods, ostracods, and more, though terrestrial and freshwater snails of the loess, microfossils, plant fossils, occasional vertebrates, and others can also be found in the park. Notable historical figures such as Charles Alexandre Lesueur, Charles Lyell, and John Wesley Powell all collected fossils or studied geology in the Vicksburg area. The Vicksburg Group is culturally relevant as well, as the Glendon Limestone Formation has been identified by its embedded fossils as a source rock for Native American effigy pipes. This paleontological resource inventory is the first of its kind for VICK. Although Vicksburg fossils have most recently been studied as part of the Gulf Coast Inventory & Monitoring Network (Kenworthy et al. 2007), the park has never received a comprehensive, dedicated fossil inventory before this report. At least 27 fossil species, listed in Appendix B, have been named and described from specimens collected from within VICK’s lands, and VICK fossils can be found at six or more non-NPS museum repositories. Beginning in January 2022, field surveys were undertaken at VICK, covering nearly all the park’s wooded areas, streams, and other portions beyond the preserved trenches and tour road. Fossils were collected or observed at 72 localities. These specimens will be added into VICK’s museum collections, which previously contained no paleontological resources. Considering the minimal attention dedicated to these resources in the past, these newly acquired fossil specimens may be used in the future for educational, interpretive, or research purposes. Future park construction needs should take into account the protection of these resources by avoiding important localities or allowing collection efforts before localities become inaccessible or lost.
7
Droby, Samir, Joseph W. Eckert, Shulamit Manulis, and Rajesh K. Mehra. Ecology, Population Dynamics and Genetic Diversity of Epiphytic Yeast Antagonists of Postharvest Diseases of Fruits. United States Department of Agriculture, October 1994. http://dx.doi.org/10.32747/1994.7568777.bard.
Full textAbstract:
One of the emerging technologies is the use of microbial agents for the control of postharvest diseases of fruits and vegetables. A number of antagonistic microorganisms have been discovered which have the potential to effectively control postharvest diseases. Some of this technology has been patented and commercial products such as AspireTM (Ecogen Corporatin, Langhorne, PA, USA), Biosave 10TM and Biosave 11TM (Ecoscience Inc., Worchester, MA, USA) have been registered for commercial use. The principal investigator of this project was involved in developing the yeast-based biofungicide-AspireTM and testing its efficacy under commercial conditions. This research project was initiated to fill the gap between the knowledge available on development and commercial implementation of yeast biocontrol agents and basic understanding of various aspects related to introducing yeast antagonists to fruit surfaces, along with verification of population genetics. The main objectives of this study were: Study ecology, population dynamics and genetic diversity of the yeast antagonists Candida guilliermondii, C. oleophila, and Debaryomyces hansenii, and study the effect of preharvest application of the yeast antagonist C. oleophila naturally occurring epiphytic microbial population and on the development of postharvest diseases of citrus fruit during storage. Our findings, which were detailed in several publications, have shown that an epiphytic yeast population of grapefruit able to grow under high osmotic conditions and a wide range of temperatures was isolated and characterized for its biocontrol activity against green mold decay caused by Penicillium digitatum. Techniques based on random amplified polymorphic DNA (RAPD) and arbitrary primed polymerase chain reaction (ap-PCR), as well as homologies between sequences of the rDNA internal transcribed spacers (ITS) and 5.8S gene, were used to characterize the composition of the yeast population and to determine the genetic relationship among predominant yeast species. Epiphytic yeasts exhibiting the highest biocontrol activity against P. digitatum on grapefruit were identified as Candida guilliermondii, C. oleophila, C. sake, and Debaryomyces hansenii, while C. guilliermondii was the most predominant species. RAPD and ap-PCR analysis of the osmotolerant yeast population showed two different, major groups. The sequences of the ITS regions and the 5.8S gene of the yeast isolates, previously identified as belonging to different species, were found to be identical. Following the need to develop a genetically marked strain of the yeast C. oleophila, to be used in population dynamics studies, a transformation system for the yeast was developed. Histidine auxotrophy of C. oloephila produced using ethyl methanesulfonate were transformed with plasmids containing HIS3, HIS4 and HIS5 genes from Saccharomyces cerevisiae. In one mutant histidin auxotrophy was complemented by the HIS5 gene of S. cerevisiae is functionally homologous to the HIS5 gene in V. oleophila. Southern blot analysis showed that the plasmid containing the S. cerevisiae HIS5 gene was integrated at a different location every C. oleophila HIS+ transformant. There were no detectable physiological differences between C. oleophila strain I-182 and the transformants. The biological control ability of C. oleophila was not affected by the transformation. A genetically marked (with b-glucuronidase gene) transformant of C. oleophila colonized wounds on orange fruits and its population increased under field conditions. Effect of preharvest application of the yeast C. oleophila on population dynamics of epiphytic microbial population on wounded and unwounded grapefruit surface in the orchard and after harvest was also studied. In addition, the effect of preharvest application of the yeast C. oleophila on the development of postharvest decay was evaluated. Population studies conducted in the orchard showed that in control, non-treated fruit, colonization of wounded and unwounded grapefruit surface by naturally occurring filamentous fungi did not vary throughout the incubation period on the tree. On the other hand, colonization of intact and wounded fruit surface by naturally occurring yeasts was different. Yeasts colonized wounded surface rapidly and increased in numbers to about two orders of magnitude as compared to unwounded surface. On fruit treated with the yeast and kept on the tree, a different picture of fungal and yeast population had emerged. The detected fungal population on the yeast-treated intact surface was dramatically reduced and in treated wounds no fungi was detected. Yeast population on intact surface was relatively high immediately after the application of AspireTM and decreased to than 70% of that detected initially. In wounds, yeast population increased from 2.5 x 104 to about 4x106 after 72 hours of incubation at 20oC. Results of tests conducted to evaluate the effect of preharvest application of AspireTM on the development of postharvest decay indicated the validity of the approach.
8
7200 Hz coplanar resistivity of the Stikine area, Southeast Alaska, Map b - South Duncan Canal (blueline). Alaska Division of Geological & Geophysical Surveys, 1997. http://dx.doi.org/10.14509/1802.
Full text
9
7200 Hz coplanar resistivity of the Stikine area, Southeast Alaska, Map b - South Duncan Canal (full color, 400 dpi). Alaska Division of Geological & Geophysical Surveys, 1997. http://dx.doi.org/10.14509/2572.
Full text