Дисертації з теми "Length and weight"
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Faulkner, Sean (Sean Anthony) Carleton University Dissertation Engineering Electrical. "Determination of maximal-length sequences by weight distribution analysis." Ottawa, 1989.
Знайти повний текст джерелаIsaksson, Erica. "Cardinality for optical orthogonal codes with variable length and weight." Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7672.
Повний текст джерелаTo let many users benefit from the high speed communication in an optical fiber, a way to share the channel is needed. One way to share the channel between the users is the multiple access technique of Code Division Multiple Access, CDMA. This technique is based on coding. By assigning the users different codewords, the receiver is able to distinguish the information sent from each user. One family of codes suitable to use in a fiber optic network is the constant weight Optical Orthogonal Codes, OOC.
To influence the users interference tolerability it is possible to assign the users codewords of the same length but with different weights. By letting the users have codewords of different length it is possible to have different data rates in the system. These two versions of optical orthogonal codes, with variable length and weight, are investigated in this thesis for their cardinality. The variable weight and variable length codes were created by combining optical orthogonal codes with different parameters.
I have found that for variable length OOC:s of weight 2 it seems to be possible to increase the cardinality of a code, but for codes with higer weights than that, it is better that all users are assigned codewords of the same length. But since an upper bound for the cardinality of these types of codes has not been found, it is not possible to verify if this conclusion is correct. For variable weight OOC:s it is found that it is only possible to increase the cardinality of small, not optimal, codes. For codes including many codewords it is rarely possible to include more codewords without breaking the conditions on cross correlation between the codewords.
Bratcher, Charlotte. "Maternal Age: Influence on Length of Gestation and Birth Weight." TopSCHOLAR®, 1997. http://digitalcommons.wku.edu/theses/769.
Повний текст джерелаHowell, Jason Alan Shields Edgar W. Jr. "A comparative study examining the difference between the offensive production of the -5 length to weight collegiate baseball bat and the -3 length to weight collegiate baseball bat." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,1542.
Повний текст джерелаTitle from electronic title page (viewed Sep. 16, 2008). "... in partial fulfillment of the requirements for the degree of Master of Arts in the Department of Exercise and Sport Science Sport Administration." Discipline: Exercise and Sports Science; Department/School: Exercise and Sport Science.
Geduld, Heike. "Validation of weight estimation by age and length based methods in the South African population." Master's thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/25777.
Повний текст джерелаReinsberg, Stefan A. "Length scales of dynamic heterogeneities of low and high molecular weight glass formers from multidimensional NMR." [S.l.] : [s.n.], 2001. http://ArchiMeD.uni-mainz.de/pub/2002/0028/diss.pdf.
Повний текст джерелаSun, Jonghun. "The Effect of Using Large versus Small Units in Quantitative Estimates of Length, Weight, and Volume." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1351279308.
Повний текст джерелаBailey, Beth, and Judy G. McCook. "The Potential “Double Whammy” of Cigarette Smoking and SSRI Use in Pregnancy: Reduced Infant Weight and Length." Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etsu-works/7181.
Повний текст джерелаFoster, Adam D. "The developmental origins and functional role of postcranial adaptive morphology in human bipedal anatomy." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/333343.
Повний текст джерелаFonseca, Alinca Peres da. "Crescimento e reprodução do peixe anual Austrolebias wolterstorffi (cyprinodontiformes:rivulidae) em diferentes temperaturas." reponame:Repositório Institucional da FURG, 2011. http://repositorio.furg.br/handle/1/2700.
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A temperatura é um parâmetro que influencia na dinâmica de fatores bióticos, especialmente nos animais ectotérmicos. O ciclo de vida dos peixes anuais é afetado pela temperatura da água. Devido à fragilidade do habitat destes peixes à ações antrópicas, ameaça de extinção, importância dos mesmos como modelos biológicos e a lacuna no conhecimento da sua biologia, este trabalho tem como objetivo o estudo da influência da temperatura no crescimento e na reprodução de Austrolebias wolterstorffi. Logo após a eclosão foi dado início ao ensaio de crescimento em diferentes temperaturas, 16, 20, 24 e 28°C (todas com três repetições), com duração até os 67 dias de vida dos peixes. O presente trabalho evidenciou que a manutenção em 28°C é prejudicial ao crescimento de A.wolterstorffi no âmbito do período estudado Dentre as demais temperaturas testadas, foi verificado que a temperatura ótima para o crescimento diminui ao longo da vida, onde no inicio do ciclo, durante a fase juvenil, temperaturas mais elevadas (23,8° C) favorecem o crescimento, enquanto temperaturas intermediárias otimizam o crescimento de fêmeas (20,7°C) e machos (20,1°C) adultos. A temperatura ótima para o crescimento foi sempre ligeiramente inferior para os machos. O comprimento e o peso corporal demonstraram ser mais representativos na diferenciação do que a idade, pois os peixes com crescimento mais lento demoraram mais a diferenciar. Os machos crescem mais rápido que as fêmeas e, portanto, atingem a maturidade antes. Os ensaios de reprodução foram constituídos dos mesmos tratamentos do experimento de crescimento, porém as 12 UE foram dotadas de casais. Foram fornecidos ninhos para postura de ovos. De maneira geral, as fêmeas tratadas a 24°C apresentaram melhores resultados, pois além de manter o fator de condição (K) relativamente elevado, obtiveram altas taxas de fertilidade (FT) e fecundidade (FC). Dados registrados para K, FT, FC, índice gonadossomático e histologia dos testículos evidenciaram que o desempenho reprodutivo foi prejudicado na temperatura mais elevada. Portanto, os resultados do presente estudo sugerem que 24°C é a temperatura mais indicada para manter A. wolterstorffi durante todo o ciclo em cativeiro.
Temperature is especially important for the dynamics of biotic factors in poikilothermic animals. Life cycle of annual fish is affected by temperature. These fish inhabit fragile environments, susceptible to antropic actions, and as such some species are threatened with extinction. They are also important as biological models, but information on their bio-ecology is scarce. The aim of this work was to investigate the influence of temperature on growth and reproduction of Astrolebias wolterstorffi. Soon after hatching fish were exposed to 16, 20, 24 and 28°C, and their growth was followed for 67 days. Until 18 d.a.h (days after hatching) the growth is hampered at 16°C and do not show difference at 20, 24 and 28°C. Thereafter, the intermediate temperatures favor growth of juveniles, while extremes temperatures are prejudicial. After sexual differentiation, growth was improved for fish reared at 16°C, and reduced at 28°C. There is evidence suggestin that optimal growth temperature decrease with fish age. Juveniles grow faster at high temperature (23,8°C), whereas intermediate ones optimize the growth adults females (20,7°C) and males (20,1°C). Growth of males is higher at slightly lower temperatures than that optimal for growth of females. Maturation onset is defined by length rather than age, and at high temperatures maturation is observed earlier. Also, males mature earlier than females. For the reproduction study, 12 couples (150 d.a.h.) were distributed in 12 tanks at the same temperatures of the growth experiment. Reproduction output was favored when A. wolterstorffi were kept at 24°C. Furthermore, fish kept at 28°C presented the worst reproductive parameters, including condition factor, fertility, fecundity, gonadosomatic index, and also histological evidence. The results of the present studies suggest that A. wolterstorffi should be reared at 24°C during the whole cycle in captivity.
Parkman, Sharon E. "The infant undergoing cardiac surgery : can we predict length of stay and presence of complications from age, weight, diagnoses, and type of of surgery? /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/7215.
Повний текст джерелаCorbett, Brandon Richard. "A Pilot Study to Determine the Performance of Tension Lap Splices in Reinforced Masonry Made with Light-Weight Grout." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/5661.
Повний текст джерелаHarikishun, Ameil. "Establishing a weight-length baseline for evaluating changes in yellowfin tuna (Thunnus albacores) body condition in the Western Indian Ocean." Bachelor's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/7632.
Повний текст джерелаTantasuparuk, Wichai. "Sow reproductive performance in Thailand : effects of climate, breed, parity, lactation length, weight loss during lactation and weaning-to-service interval /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2000. http://epsilon.slu.se/avh/2000/91-576-5938-9.pdf.
Повний текст джерелаYoder, Jennifer M. "Correlation Between Weight Loss and Select Motor Scores From a Chart Review of Huntington's Disease Patients." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1338320824.
Повний текст джерелаBadami, Anand Shreyans. "Morphological and Structure-Property Analyses of Poly(arylene ether sulfone)-Based Random and Multiblock Copolymers for Fuel Cells." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/29469.
Повний текст джерелаPh. D.
Argo, Joshua. "A Study of Salmonid Growth in Two Southern Appalachian Headwater Streams." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etd/3296.
Повний текст джерелаSwift, Bruce D. "Heritabilities and genetic correlations for weight, length and survivability in fresh water and salt water of SO and S1 coho salmon, (Oncorhynchus kisutch)." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30380.
Повний текст джерелаLand and Food Systems, Faculty of
Graduate
Rudershausen, Paul J. "Food, Feeding, and Length-Weight Relationships of Young-of-The-Year Striped Bass, Morone saxatilis and Young-of-The-Year White Perch, Morone americana." W&M ScholarWorks, 1994. https://scholarworks.wm.edu/etd/1539617670.
Повний текст джерелаOrchard, Trevor J. "An application of the linear regression technique for determining length and weight of six fish Taxa : the role of selected fish species in Aleut paleodiet /." Oxford : Archaeopress, 2003. http://catalogue.bnf.fr/ark:/12148/cb39144650s.
Повний текст джерелаZardo, Éverton Luís. "Diferenciação sexual, estrutura populacional e ciclo reprodutivo de piracanjubas (Brycon orbignyanus) sob condições de cultivo." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/179266.
Повний текст джерелаThe species under study (Brycon orbignyanus) has undergone a important population decline in the last years due to anthropic interferences. For this reason, natural populations in the Uruguay River basin are practically non-existent, and stocks kept in captivity suffer from disproportionate sex ratios, and significant losses of genetic variability, impairing the use of this species in conservation programs. The main objective of this thesis is to evaluate the population and reproductive parameters of Brycon orbignyanus under captive conditions aiming the applicability of this knowledge in conservation programs. Thus, the objective of the first experiment was to evaluate the fluctuations in sexual ratio along the ontogenetic development and the different morphological patterns of growth between the sexes. Five hundred specimens were sampled from commercial fish farming and biometric data were recorded for a linear regression between weight and length. From the chi-square test (χ²) it was possible to observe that the sex ratio showed disproportions in the upper length classes. Males and females showed positive allometric growth (b = 3.35 and b = 3.44), while sexually undifferentiated individuals showed negative allometry (b = 2.96). The objective of the second experiment was describe the processes of sexual differentiation, in order to define the thermosensitive period After euthanasia of the animals, the gonads were collected and fixed in 4% buffered formaldehyde solution. Serial sections (3 μm) were stained with Toluidine Blue and analyzed by light microscopy. The first signs of sexual differentiation were observed only at 323 days after fertilization (DAF), and at 730 DAF all individuals were already sexually differentiated. The objective of the third experiment was to describe the reproductive cycle of B. orbignyanus males, in order to establish a maturation scale for males of this species. For this, specimens were collected periodically in a commercial fish farm. As in the previous experiment, the gonads were collected and fixed for histological analysis. The images were obtained through an optical microscope and analyzed according to the description of the reproductive phases suggested by Brown-Peterson et al. (2011). Five reproductive phases were established according to macroscopic characteristics of the testes, presence and distribution of spermatogenic cells and variations in the gonadosomatic index. The first individuals able to reproduce were observed at 435 DAF.
Bailey, Martin C. "Spatial and temporal variability in length, weight and lipid content at age of the lesser sandeel Ammodytes marinus Raitt in the northern North Sea and adjacent waters." Thesis, University of Aberdeen, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320242.
Повний текст джерелаMiles, Tracy Jill. "Differences between gains in weight-for-age and length-for-age of breast fed infants in Delaware County, Indiana and the National Center for Health Statistics growth standards." Virtual Press, 1997. http://liblink.bsu.edu/uhtbin/catkey/1061870.
Повний текст джерелаDepartment of Family and Consumer Sciences
Souza, Jussara Elias de. "Caracterização populacional de Cichla kelberi (Perciformes: Cichlidae) no reservatório do Lobo (Broa), Brotas / Itirapina - SP." Universidade Federal de São Carlos, 2007. https://repositorio.ufscar.br/handle/ufscar/1919.
Повний текст джерелаFinanciadora de Estudos e Projetos
The Cichla kelberi population was characterized in terms of sexual proportion, size structure and some reproductive aspects. The collects were made in two distinct periods. The first, from November 2002 to November 2003 and the second, from December 2004 to May 2006. The sexual proportion showed significantly difference from 1:1 with predominance of females. Total length varied from 3.4 to 40.1cm, with large frequency on the small sized classes. These smallest individuals occurred around all the year, but mainly in the warmer months. Females and males reached similar maximum length. Individuals with Mature or Partial Spent gonads occurred mainly from November to April, indicating that Cichla kelberi has a long reproductive period, a biological evidence that it is a species well adapted in this reservoir, showing partial spawning and an absolute fecundity ranging from 6089 to 6908 oocytes.
Foi caracterizada a composição da população de Cichla kelberi quanto à proporção sexual, composição em comprimento e algumas características reprodutivas. As coletas foram realizadas em dois períodos. O primeiro, de novembro de 2002 a novembro de 2003 e o segundo, de dezembro de 2004 a maio de 2006. A proporção sexual foi significativamente diferente de 1:1, com predomínio de fêmeas. Os comprimentos totais variaram de 3,4 a 40,1cm, com altas freqüências nas classes de menor tamanho. A ocorrência de indivíduos nas menores classes deu-se ao longo de todo o ano, com maior incidência nos períodos mais quentes. Fêmeas e machos atingem comprimentos máximos similares. Indivíduos com gônadas Maduras ou Semi Esgotadas ocorreram com maior freqüência de setembro a abril, indicando que Cichla kelberi apresenta um longo período reprodutivo, uma condição biológica que indica a boa adaptação da espécie neste reservatório. A desova é do tipo parcelada e com fecundidade absoluta de variando de 6089 a 6908 ovócitos.
Pereira, Joilane Alves. "A influência do peso ao nascer sobre a pressão arterial e a composição corporal em crianças." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/6/6133/tde-05122007-134552/.
Повний текст джерелаIntroduction: Epidemiological studies suggest that intra-utero exposure to malnutrition, hyperglycemia or hypercortisolemia during critical periods of development leads tometabolic and endocrinological changes that will be expressed in adult life, a condition known as Fetal Programming. Objectives: To assess the relationship between birth weight (BW) and blood pressure, anthropometric and body composition measurements. Methods: This is a retrospective cohort study based on RONDO (2003) data, involving 472 children, aging 5 8 years, from Jundiai, Sao Paulo. Clinical evaluation included blood pressure (BP), weight (W), height (H) and body mass index (BMI) to age. Body composition: tricipital (TSF) and subscapular skinfold thickness (SSF), mid-upper arm circumference (MUAC), waist circumference (WC), fat mid-upper arm area (FMUAA) and muscle mid-upper arm area (MMUAA). The following elements were determined by biochemical analysis: total cholesterol (TC), LDL-cholesterol (LDLc), HDLcholesterol (HDLc) and triglycerides (TG). Household interview included data about socioeconomic and demographic conditions. In order to check the association among continuous variables, Pearson correlation test was performed. Chi-square and tstudent tests were also performed for categorical variables in order to compare means. Linear regression models were applied to investigate the relationship among independent variables (BW and birth length BL) and dependent variables (W, S, BMI, WC, FMUAA, systolic blood pressure SBP and diastolic blood pressure DBP), controlling for confounders such as gender, age, BMI, total cholesterol, HLD-c, per capita income and escolarity. Results: Mean age was 78,9 + 7,9 months; 53,81% of the children were female. The prevalences of malnutrition, risk of overweight and overweight were 9.53%, 14,19% and 8.47%, respectively. The prevalence of children with a SBP ≥ the 95 centile was high (35.16%) and 5.09% of the children had a DBP ≥ the 95 centile. Eight one (17.16%) of the children had low HDL-c; from those, 22,83% were female. BW was positively correlated with FMUAA and BMI (p < 0.001). SBP and DBP were positive correlated with BMI and FMUAA (p < 0.001). In the final linear regression model, adjusted for BMI, it was noticed a significant inverse relationship between BW and SBP. There were no statistically significant associations between BW and DBP and between BL and systolic and diastolic pressures. Conclusions: The inverse relationship between BW with actual SBP, the straight relationship of BP with fat and muscle mass and BMI, and the high prevalence of the risk of overweight/overweight, justify the control of the nutritional status of children since the fetal period and the monitoring of BP measurements in the pediatric routine.
Boltena, Sisay Sinamo. "Factors affecting the rehabilitation outcome (of outpatient therapeutic program) of children with severe acute malnutrition in Durame, Southern Ethiopia." Thesis, UWC, 2008. http://hdl.handle.net/11394/2868.
Повний текст джерелаBackground: Malnutrition accounted high level of childhood morbidity and mortality in Ethiopia including Durame area. Durame area is one of the food insecure districts in Southern region. As a result of high prevlanece of acute malnutrtion, which is 8.3%, Ministry of Health partnering with World Vision Ethiopia started outpatient therapeutic program (OTP) in seven OTP sites to rehablitate severely malnourished children. Reports indicate that number of factors affect the rehabilitation outcome of children with severe acute malnutrtion in OTP programs. However, there are no studies conducted to assess their contribution in the rehablitaiton outcome. Hence, this study will attempt to investigate these factors and assess their public health significance in Durame area. Aim: To assess the factors affecting the rehabilitation outcome of an OTP for children with severe acute malnutrition in Durame area, Southern Ethiopia Method: the study used a descriptive study with an analytical component. Three-hundred and sixty (360) medical records were calculated during sampling and proportional numbers of medical records were sampled from the seven OTP sites. The medical records were reviewed using semi-structured questionnaires from September 1 to September 10, 2008. The data was entered and analyzed using EPI info version 3.3.2 software. Results: three hundred fifty five (98.6%) of the total sample records were reviewed. Three hundred twenty nine (92.7%) children were cured, 11(3.8%) died, 7 (2%) defaulted and 8 (2.3%) were non-cure. Average weight gain on discharge was 3.4gm/kg/day and the mean length of stay was 55.6 days (SD+14 days). More than 60% of children were admitted in three of the seven OTP sites where Demboya OTP sites taking the larger share. Nearly half of the total children (49.8%) were between 6 to 12 months of age and the median age of admission was 13 months. The male to female ratio in the study population was almost equal. Average family size was 6.3 and 58.3% of children came from households with 6 or more family members. Forty two (11.8%) children in the study had twin. The average walking distance to the OTP sites was 62.9 minutes and two hundred fifty six mothers travelled less than an hour. Most of the children (92.1%) were referred from the community and most of the children were admitted with MUAC followed by pitting edema. One hundred seventy four (49%) of the total children were beneficiaries of GFR. On admission two hundred twenty six (63.7%) children were breastfeeding, 257 (72.4%) had no symptoms of sickness and 327 (92.1%) did not have abnormal physical examination findings. More than half (51.5%) of them did not receive any home visit and the larger share of the home visits (37.3%) were made when children got illnesses. One hundred sixteen (32.7%) children in the study had chronic medical conditions during follow up. Fever or hypothermia (0.6%), dehydration (0.8%), anemia (0.6%), skin infection (1.6%) and Plumpy nut refusal (2.0%) were the main abnormal medical findings during follow up. Assessment of the influence of the socio-demographic and biological characteristics on the rehabilitation outcome indicated that the sites, family size, chronic medical conditions, absenteeism, weight loss, presence of fever or hypothermia, dehydration and anemia had significant association with the treatment outcome (p<0.05). Further analysis for significant variables using regression analysis indicated that absenteeism, chronic medical illness, fever or hypothermia and anemia are predictor variables contributing significant information for the prediction of the treatment outcome (p<0.05). Conclusion: The program has high success rate in terms of increasing cure and decreasing death, default and non-cure rates but it did not meet the minimum international recommendations for average length of stay and average weight gain. The study identified the main socio-demographic and biological characteristics of children with SAM and factors that affect the rehabilitation outcome. Children under the age of 24 months were most affected with SAM and no gender variation. Larger proportions of malnourished children were living in families above the average family size, which had significant association with the outcome. OTP sites were accessible for majority children in the program but higher level of absenteeism which significantly associated with the outcome. The study identified socio-demographic and biological factors that influenced the rehabilitation outcome as well as the predictor variables contributing significant information for the prediction of the treatment outcome. It could assist the program implementers to design appropriate public health measures. The achievement in Durame OTP program indicates effectiveness of community based management of SAM and existing potential to integrate in routine health system in resource scarce setting like Durame. Recommendations: to sustain the achievements and improve the growth areas necessary public health measures are prime importance.
Martins, Mariana da Fontoura. "Estrutura populacional e biologia reprodutiva da raia-elétrica-cega, Benthobatis kreffti (Chondrichthyes, Narcinidae) no talude continental do estado de São Paulo /." Rio Claro, 2017. http://hdl.handle.net/11449/181307.
Повний текст джерелаResumo: A raia elétrica cega Benthobatis kreffti é endêmica do Altântico Sul Ociedental e apresenta distribuição restrita desde o sul até o sudeste Brasileiros, ocorrendo em profundidades entre 400 e 600 m. Apesar de seu extremo endemismo, sua biologia é virtualmente desconhecida, especialmente no que diz respeito à porção norte de sua distribuição. O objetivo deste trabalho foi estudar a estrutura populacional e biologia reprodutiva desta espécie, no talude continental do estado de São Paulo. Os indivíduos foram capturados em julho e agosto de 2003 e dezembro de 2007 no cruzeiro científico Soloncy Moura, o qual operou em 492-501 m de profundidade entre os municípios de Santos e Cananéia. Quanto à composição de captura, B. kreffti foi o condricte mais capturado, seguido por Gurgesiella dorsalifera. Os demais foram Hydrolagus matallanasi, Dipturus sp. e Torpedo, sp. Quanto à estrutura em tamanho, fêmeas diferem de machos por apresentarem maiores comprimentos (máximo de 299 mm em fêmeas e 256 mm em machos). A razão sexual total foi diferente de 1:1, bem como para indivíduos adultos. Nos outros estágios de maturidade considerados (imaturo e em desenvolvimento), não houve diferença significativa. A relação comprimento-peso e o tamanho onde 50% da população encontra-se maduro (LT50) também foram diferentes entre os sexos, em favor das fêmeas. Fêmeas apresentaram LT50 de 191 mm enquanto machos maturam em 176 mm. A fecundidade uterina foi de três embriões por fêmea, com embriões nascendo en... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The blind electric ray Benthobatis kreffti is endemic to the South West Atlantic and has a restricted distribution, from south and southeast Brazil, occurring in 400-600 m depth. Despite its endemism, its biology is virtually unknown, especially concerning the north extreme of its distribution. For this reason, the aim of this work was to study the population structure and reproductive biology of B. kreffti off São Paulo State continental slope. Individuals were captured in July and August of 2003 and December 2007 during the scientific cruise Soloncy Moura, operating in 492-501 m depth between Santos and Cananéia municipalities. Benthobatis kreffti was the most captured chondrichthyan, followed by Gurgesiella dorsalifera. Other chondrichthyan captured were: Hydrolagus matallanasi, Dipturus sp and Torpedo sp.. Concerning size structure, females were larger than males (females: 299 mm; males: 256 mm total length). Total sex ratio was different from 1:1, as well as for adult individuals. At other maturity stages considered (immature and developing), no differences were observed. The length-weight relationship and size at 50 % maturity (LT50) were also different between sexes, biased toward females. Female´s LT50 was 191 mm, while in males, LT50 was 176 mm total length. Uterine fecundity was three embryos/ female, with size at birth estimated in 90-100 mm total length (about1/3 of the total length recorded for this species).
Mestre
Barbosa, Heitor Thury Barreiros. "Fator de condição de peixes do sistema do Lago Grande, Manacapuru, Amazonas." Universidade Federal do Amazonas, 2013. http://tede.ufam.edu.br/handle/tede/4763.
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Marked by a well defined alternation between the terrestrial and aquatic stages, the Amazon floodplain has a low climatic seasonality, with daily oscillations on temperature higher than annual and less pronounced variation of the photoperiod throughout the year. These environments are also characterized by the standard uni-modal and predictable flood with large seasonal variation in water level. For the fish fauna of the floodplain, the direct effects of changes in water level include severe changes in community composition and density of the population, conditioned by changes in limnological characteristics and the availability of food. Such seasonal variations in terms of feeding and reproductive responses may be expressed by the condition factor, quantitative indicator of the wellfare in front of the fish conditions of their environment. This study aimed to provide information on the seasonal variation of fish species condition factor in the Jaitêua and São Lourenço lakes that composes the Lago Grande System in the city of Manacapuru, Amazonas State. Data collect were made monthly for the period from July 2006 to July 2007. Once the condition factor were calculated, the comparisons between periods were performed by ANOVA. The comparisons between sexes and between juveniles and adults were made by t test. PCA was used to identify groups of species whose pattern of variation of the condition factor is similar. After critical data analysis, there were selected 13 species to study. The seasonal variation of the condition factor was significant for Acestrorhynchus falcirostris, Triportheus albus, Triportheus auritus, Potamorhina altamazonica, Potamorhina latior, Pygocentrus nattereri, Serrassalmus altispinis, Pellona flavipinnis and Hypophthalmus marginatus. Only Schizodon fasciatus, Serrassalmus spilopleura, Plagioscion squamosissimus and Hoplosternum littorale showed no seasonal variation in the condition factor. Despite the influence of reproductive characteristics, we can point at feeding habits as a biological trait that best explained the seasonal variation of the condition factor of fish species in the study area. Based on the local history, the hydrological cycle was considered atypical during the study period. Also, it was observed differences between cycles in the lake and in the main river. For most of the selected species, male and female seasonal variation in the condition factor showed similarities. Comparing juveniles and adults, the variation patterns of the two groups were different for the vast majority of species.
Marcada por uma alternância bem definida entre as fases terrestre e aquática, a várzea amazônica apresenta baixa sazonalidade climática, com oscilações diárias da temperatura superiores à anual e variação pouco pronunciada do fotoperíodo ao longo do ano. Esses ambientes são também caracterizados pelo padrão unimodal e previsível das enchentes com grande variação sazonal do nível da água. Para a ictiofauna da várzea, os efeitos diretos da variação do nível da água incluem severas modificações na composição das comunidades e na densidade das populações, condicionadas pelas alterações nas características limnológicas e na disponibilidade de alimentos. Tais variações sazonais, em termos de alimentação e respostas reprodutivas, podem ser expressas pelo fator de condição, indicador quantitativo do grau de bem-estar do peixe frente às condições de seu ambiente. Esse estudo visou gerar informações sobre a variação sazonal do fator de condição de espécies ictíicas nos lagos Jaitêua e São Lourenço, que compõem o Sistema do Lago Grande no município de Manacapuru, Estado do Amazonas. As coletas dos dados foram efetuadas mensalmente entre o período de Julho de 2006 e Julho de 2007. Calculado o fator de condição, as comparações entre períodos foram realizadas por métodos de ANOVA. Comparações entre sexo e entre juvenis e adultos foram feitas por teste t. Utilizou-se de PCA para identificar grupos de espécies com semelhanças na variação sazonal do fator de condição. Após análise crítica dos dados, foram selecionadas 13 espécies para estudo. A variação sazonal do fator de condição foi significante para Acestrorhynchus falcirostris, Triportheus albus, Triportheus auritus, Potamorhina altamazonica, Potamorhina latior, Pygocentrus nattereri, Serrassalmus altispinis, Pellona flavipinnis e Hypophthalmus marginatus. Apenas Schizodon fasciatus, Serrassalmus spilopleura, Plagioscion squamosissimus e Hoplosternum littorale não apresentaram variação sazonal. Apesar da influência de características reprodutivas, pode-se apontar o hábito alimentar como característica biológica que melhor explicou a variação sazonal do fator de condição das espécies ictíicas na área de estudo. Com base em séries históricas da localidade, o ciclo hidrológico foi considerado atípico durante o período de coleta. Observaram-se também diferenças entre ciclos no lago e no rio principal. Para a maioria das espécies selecionadas, machos e fêmeas apresentam variação sazonal no fator de condição semelhante. Comparando juvenis e adultos, os padrões de variação desses dois grupos foram diferentes para a grande maioria das espécies
Moura, Nelson Antunes de. "Morfometria de lagoas marginais da bacia do alto Paraguai : relação com a estrutura e dinâmica das comunidades de peixes no Pantanal de Cáceres-MT." Universidade Federal de São Carlos, 2010. https://repositorio.ufscar.br/handle/ufscar/1698.
Повний текст джерелаFundação de Amparo à Pesquisa do Estado de Mato Grosso
Most ecological studies of tropical fishes involve limnology related to reproductive behavior, feeding and migration. This work is an attempt to consider, in the area of fish ecology, a new approach that involves addition of limnological variables, environmental variables morphometric and morphologic environment and determine whether, beyond the flood pulse, these characteristics determine the community structure fish in the wetland. Were chosen ten ponds, regionally called "bays" on the banks of the rivers Paraguay, Paraguaizinho, and Sepotuba Cabaçal. Their morphology and physical and chemical variables of water were measured. A sampling of the ichthyofauna was done in three sampling points in each pond using trawl 3mm between us, 2.5 x25m long. Species richness was analysed using indices of Margalef and Minhinicke. We used multivariate analysis to determine the environmental variables that contributed in determining the structure of fish communities. Correspondence Analysis showed that the major groups of fishes related to species richness in two main groups: periods of low water, drought and flood, and the flood period. The abundance showed clustering contrast, the higher observed during periods of low water, drought and flood and the lowest found during the flood. Results of discriminant analysis demonstrated that the lakes are listed in four categories, depending on the degree of similarity of environmental characteristics. In each category groupings were more strongly related collection period than the limnological and morphometric analysis. However, the group found in the discriminant analysis, the lake VI (Ximbuva) shown by the rounded morphology and the morphometric values smaller lake VIII (the right bank of the river Cabaçal), show that the two are related to the structure of fish community wetland at the local level, while the flood pulse events determined the regional level.
A maior parte dos estudos de ecologia da ictiofauna tropical envolve a limnologia relacionada com o comportamento reprodutivo, alimentar e migratório. Este trabalho é uma tentativa de considerar, na área de ecologia de peixes, uma nova abordagem que envolva além das variáveis limnológicas, variáveis ambientais morfométricas e morfológicas do ambiente e verificar se, além do pulso de inundação, essas características determinam a estrutura de comunidade de peixes no pantanal. Foram escolhidas dez lagoas, regionalmente denominadas de baías , nas margens dos rios Paraguai, Paraguaizinho, Sepotuba e Cabaçal. As suas características morfométricas e variáveis físicas e químicas da água foram mensuradas. A amostragem da ictiofauna foi feita em três pontos amostrais em cada lagoa utilizando rede de arrasto de 3mm entre nós, de 2,5x25m de comprimento. A riqueza de espécies foi analisada através dos índices de Margalef e de Minhinick. Foram utilizadas análises multivariadas para determinar as variáveis ambientais que contribuíram na determinação da estrutura das comunidades de peixes. Análise de Correspondência mostrou que os grandes grupos da ictiofauna relacionaram a riqueza de espécies em dois grupos principais: períodos da vazante, seca e enchente; e período da cheia. A abundância mostrou um agrupamento contrário, a maior observada nos períodos da vazante, seca e enchente e a menor encontrada no período da cheia. Os resultados das Análises Discriminantes demonstraram que as lagoas estão relacionadas em quatro categorias, em função do grau de semelhança das características ambientais. Em cada categoria os agrupamentos estiveram mais fortemente relacionados com o período de coleta do que com as variáveis limnológicas e morfométricas analisadas. Porém, pelo agrupamento encontrado na análise discriminante, a lagoa VI (Baía da Ximbuva) demonstrado pela morfologia arredondada e pelos menores valores morfométricos da lagoa VIII (à margem direita do rio Cabaçal), demonstram que ambas possuem relação com a estrutura de comunidade de peixes do pantanal à nível local, enquanto que o pulso de inundação determinaram os eventos à nível regional.
Trinh, Megan. "On the Diameter of the Brauer Graph of a Rouquier Block of the Symmetric Group." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron152304291682246.
Повний текст джерелаSimonaitis, Pijus. "Weighted Genome Rearrangements." Thesis, Montpellier, 2020. http://www.theses.fr/2020MONTS041.
Повний текст джерелаRecent advances in sequencing technologies revealed the ubiquity of genome rearrangements between each and every one of us. These large scale mutationsrearrange segments of chromosomes and have a profound impact on genetic variation, disease, and evolution. The study of the consequences of rearrangements along with their molecular mechanisms, however, is still in its infancy.Given extant genomes, we are interested in tracing back the evolutionary rearrangement scenarios that transformed their least common ancestor into the genomes that we observe today. This helps not only to reveal evolutionary relationships between organisms, but also provides a window for the study of genome rearrangements themselves.The central computational problem in this subfield of comparative genomicsis that of finding optimal rearrangement scenarios transforming one genome into another. Historically all rearrangements were treated as being equally possible, and optimal scenarios were those that contained the minimum number of rearrangements. Recent advances in biology, however, allow us to devise much more sophisticated models. We present a short survey of the existingwork on using biological constraints for genome rearrangements, and argue that a much more flexible approach is necessary to accompany the influx of newly available biological data.In this work we propose an extremely general framework for genome rearrangements with biological constraints. Our main contribution is a polynomial time algorithm that, for an arbitrary cost function, finds a minimum cost scenario among those of minimum length. Along the way we establish a number of novel links between sorting genomes with double cut and join rearrangements, sorting graphs with 2-breaks or edge swaps, sorting permutations with mathematical transpositions, sorting strings with interchanges, and token swapping on graphs
Moilanen, K. (Kristiina). "Diagnostics and determinants of schizophrenia:the Northern Finland 1966 Birth Cohort Study." Doctoral thesis, Oulun yliopisto, 2011. http://urn.fi/urn:isbn:9789514296123.
Повний текст джерелаTiivistelmä Tämän tutkimuksen tavoitteena oli tutkia skitsofrenian diagnostiikan osuvuuteen liittyviä tekijöitä sekä raskauden ei-toivottavuuden, lapsen syntymäpainon ja -pituuden ja skitsofrenian sekä varhaislapsuuden kehityksen ja skitsofrenian ja muiden psykoosien välistä yhteyttä. Pohjois-Suomen vuoden 1966 syntymäkohortti on prospektiivinen, epidemiologinen seurantatutkimus, johon kuuluu 12,058 vuonna1966 syntynyttä lasta. Prospektiivista tietoa on kerätty raskaudesta alkaen elinolosuhteista, elintavoista ja perheestä ja perimästä. Tämä tutkimus perustuu 10,934 henkilöön, jotka ovat asuneet 16-vuotiaana Suomessa eivätkä ole kieltäneet tietojensa käyttämistä tutkimukseen. Kliinisten diagnoosien uudelleen arvioinnissa DSM-III-R:n kriteerit täyttäviä skitsofreniatapauksia 34 ikävuoteen mennessä todettiin 96. Näistä 96 tapauksesta myös 55:n (57 %) kliininen diagnoosi oli skitsofrenia ja 41:n (43 %) kliininen diagnoosi oli muu kuin skitsofrenia. Diagnostiikan epätarkkuus liittyi matalaan sosiaaliluokkaan vuonna 1980, myöhäiseen sairastumisikään, samanaikaiseen kehitysvamma-diagnoosiin, lyhyisiin hoitoaikoihin ja vähäiseen hoitojaksojen määrään. Ei-toivottu raskaus yhdessä vanhemman psykoosisairauden kanssa lisäsi lapsen skitsofrenian riskiä yli 8-kertaiseksi. Matala ja korkea syntymäpaino lisäsivät skitsofrenian riskiä kaksinkertaiseksi ja samansuuruinen riskin kasvu havaittiin myös lapsilla, jotka olivat syntyessään lyhyitä tai pitkiä. J-muotoinen yhteys havaittiin syntymäpainon ja -pituuden sekä skitsofrenian riskin välillä. Ikä, jolloin lapsi oppi seisomaan, kävelemään ja kuivaksi, liittyi myöhempään skitsofreniaan ja sairastumiseen muihin psykooseihin. Varhainen oppiminen laski ja myöhäinen kehitys kohotti riskiä sairastua lineaarisesti. Tutkimuksen tulokset osoittivat, että skitsofrenia on monimuotoinen kliininen oireyhtymä, mikä tekee diagnostiikan haastavaksi. Raskauden ei-toivottavuus liittyneenä vanhemman psykoosisairauteen lisää lapsen skitsofrenian riskiä. Myös poikkeava syntymäpaino ja -pituus lisäävät skitsofrenian riskiä. Psykooseihin voi liittyä kehityksellinen dimensio, joka ilmenee viivästyneenä kehityksenä
Amegah, A. K. (Adeladza Kofi). "Household fuel and garbage combustion, street vending activities and adverse pregnancy outcomes:evidence from urban Ghana." Doctoral thesis, Oulun yliopisto, 2014. http://urn.fi/urn:isbn:9789526205793.
Повний текст джерелаTiivistelmä Ilmansaasteet ovat merkittävä huolenaihe kehitysmaiden urbaaneilla alueilla teollisuuden ja ajoneuvoliikenteen lisäännyttyä sekä useimmissa kodeissa biomassan, hiilen ja jätteiden polttamisen takia. Urbaani köyhyys on kehitysmaissa laajamittaista, ja sisäilman saasteongelmien pahentamisen lisäksi se johtaa vaarallisiin ammatinvalintoihin, kuten kadulla tapahtuvaan myyntityöhön. sisäilman saasteiden ja sikiön kehityshäiriöiden välisistä yhteyksistä on kuitenkin vain vähän epidemiologisia todisteita. Katumyynnin terveysvaikutuksia on tutkittu hyvin vähän, eikä sen yhteyttä sikiön kasvuun ole tutkittu, vaikka naiset ovat vahvasti edustettuna kyseisellä alalla. Tässä väitöskirjassa tarkasteltiin sisäilman saasteiden ja ympäristön ilmansaasteiden vaikutuksia sikiön kasvuun ja raskauden kestoon sekä tutkittiin ympäristöaltisteiden roolia sosioekonomisen vähäosaisuuden vaikutuksessa sikiön kehityshäiriöihin. Väitöskirja koostuu epidemiologisesta tutkimuksesta sekä määrällisestä ja laadullisesta aineiston yhdistelemisestä. Poikittaistutkimukseen osallistui 1151 äiti-vauvaparia, jotka olivat käyneet synnytyksen jälkeen neuvolassa Korle Bu -opetussairaalassa Accrassa (n=592) tai jossain Cape Coastin neljästä pääsairaalasta (n=559). Kyselyllä kerättiin tietoa äitien sosioekonomisesta asemasta ja liikkuvuudesta sekä sisä- ja ulkoympäristön ominaisuuksista. Vauvojen syntymäpainot ja syntymähetken raskausviikot selvitettiin sairaaloiden rekistereistä. Sisäilman saasteille altistumista ja sikiön kehityshäiriöitä tarkastelevia tutkimuksia etsittiin katsausta varten PUBMED-, Ovid MEDLINE-, SCOPUS- ja CINAHL-tietokannoista. Monimuuttujamallissa, jossa sekoittavat tekijät oli huomioitu, puuhiilen käyttö pienensi syntymäpainoa 243 grammaa (95 % luottamusväli: 496-11) ja lisäsi alhaisen syntymäpainon riskiä 41 % (riskisuhde [RR]=1.41; 95 % luottamusväli: 0.62-3.23). Roskien polttoon liittyi 195 % (RR=2.95; 95 % CI: 1.10-7.92) suurentunut alhaisen syntymäpainon riski. Meta-analyysissä biomassan ja hiilen poltto alensi syntymäpainoa 86.43 grammaa (95 % luottamusväli: 55.49-117.37) ja lisäsi alhaisen syntymäpainon riskiä 35 % (meta-analyysin riskisuhde =1.35; 95 % luottamusväli: 1.23-1.48). Meta-analyysissä havaittiin myös muita biomassan ja hiilen polttoon liittyviä kohonneita kehityshäiriöiden riskejä. Kohtalainen katumyyntiaktiivisuus ja korkea liikennetiheys myyntialueella yhdessä lisäsivät matalan syntymäpainon riskiä 84 % (RR=1.84; 95 % luottamusväli: 1.05-3.24) ja ennenaikaisen syntymän riskiä 29 % (RR=1.29; 95 % luottamusväli 0.68-2.46). Tutkimuksessa todettiin äidin matalan sosioekonomisen aseman vaikutus sikiön terveyteen ja havaittiin, että sisäilman saasteiden rooli havaittujen vaikutusten välittäjänä on merkittävä. Biomassan ja hiilen polttamisesta aiheutuvien terveysuhkien ehkäisemiseksi puhtaampien polttoaineiden käyttöä tulisi edistää ja naisia tulisi valistaa siitä, kuinka ilmansaasteille altistumista voi vähentää. Hallituksen tulisi sosiaalitukien avulla mahdollistaa vaarallisissa ammateissa työskentelevien, raskaana olevien naisten työajan minimointi
Oliveira, M?nica Rocha de. "Biologia reprodutiva da Tainha, Mugil curema valenciennes, 1836 (osteichthyes: mugilidade) nas ?guas costeiras do Rio Grande do Norte." Universidade Federal do Rio Grande do Norte, 2010. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13056.
Повний текст джерелаConselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico
The marine fish white mullet, Mugil curema Valenciennes, 1836 (Osteichthyes: Mugilidae) exhibits a wide geographical distribution, being common in the Brazilian coast and is an important component of the artisanal fisheries. The objective of this study was to investigate the reproductive biology of M. curema in the coastal waters of Rio Grande do Norte. Fish samples were captured on a monthly basis during August, 2008 to July, 2009. The fish specimens were numbered, weighed, measured, dissected and their gonads were removed, weighed, their sex and gonadal development were identified. The length-weight relationship was determined for males and females. The sex ratio, the size at first gonadal maturation and gonadosomatic index (GSI) were calculated and ovarian development was investigated using macroscopic and histological techniques. The fecundity, spawning type and the reproductive period of the species were determined. A total of 366 specimens (186 males and 180 females) were captured. The sex ratio was 1:1 and the females were heavier than males. The estimated values of the angular coefficient for both sexes suggest that the species has isometric growth. The size at which 50% of the population began the process of maturation was 25.9 cm of total length for grouped sex. The macroscopic characteristics of the ovaries showed four stages of development: immature, maturing, mature and spent. However, the microscopic characteristics of the ovaries showed five stages of development: immature, early maturing, late maturing, mature and spent. The development of oocytes indicated five phases: Chromatin-nucleolus (phase I), initial perinucleolar (phase II), final perinuclear (phase II), formation of vitelline vesicle or yolk (phase III), vitellogenic (phase IV) and complete vitellogenesis (phase V). The species has a prolonged spawning period, with two peaks coinciding with the rainy season.
O peixe marinho tainha, Mugil curema Valenciennes, 1836 (Osteichthyes:Mugilidae) apresenta ampla distribui??o geogr?fica, sendo comum na costa brasileira e de grande import?ncia para a pesca artesanal. Este trabalho teve como objetivo determinar a biologia reprodutiva de M. curema nas ?guas costeiras do Estado de Rio Grande do Norte. Foram capturados mensalmente exemplares de peixes durante o per?odo de agosto de 2008 a julho de 2009. Os exemplares foram numerados, pesados, medidos, dissecados e suas g?nadas foram retiradas, pesadas e identificadas quanto ao sexo e quanto o desenvolvimento gonadal. A rela??o peso-comprimento foi determinada para machos e f?meas. A propor??o sexual, o tamanho da primeira matura??o gonadal e o ?ndice gonadossom?tico (IGS) foram calculados e o desenvolvimento ovariano foi investigado usando t?cnicas macrosc?picas e histol?gicas. Foram determinados a fecundidade, o tipo de desova e o per?odo reprodutivo da esp?cie. Foi capturado um totalde 366 exemplares (186 machos e 180 f?meas). A propor??o sexual foi de 1:1 e as f?meas foram mais pesadas que os machos. O valor estimado para o coeficiente angular para ambos os sexos sugere que ? a esp?cie apresenta crescimento isom?trico. O tamanho em que 50% da popula??o iniciaram o processo de matura??o gonadal foi de 26 cm de comprimento total para sexo agrupado. As caracter?sticas macrosc?picas dos ov?rios revelaram quatro est?dios de desenvolvimento: imaturo, em matura??o, maduro e esvaziado, enquanto que as caracter?sticas microsc?picas revelaram cinco est?dios de desenvolvimento: imaturo, em matura??o inicial, em matura??o final, maduro e esvaziado. O desenvolvimento dos ov?citos indicou cinco fases: Cromatina-nucl?olo (fase I), perinucleolar inicial (fase II), perinuclear final (Fase II), forma??o ves?cula vitel?nica (fase III), vitelog?nico (fase IV) e vitelog?nese completa (fase V). A esp?cie apresenta um per?odo reprodutivo prolongado, com dois picos coincidindo com o per?ododa chuva
Karlsson, Emil. "Examining the competitive abilities of cornflower (Centaurea cyanus) in a growth chamber experiment." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-155573.
Повний текст джерелаScheeren, Christian. "On the correlation lengths and Drude weight of the anisotropic Heisenberg chain." [S.l. : s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=961532882.
Повний текст джерелаFaye, Alexandrine. "Troubles d'utilisation d'outils et de la cognition numérique après lésions vasculaires cérébrales : deux faces d'une même pièce ?" Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE2135/document.
Повний текст джерелаTool use is a defining feature of the genus Homo. It is therefore fundamental to better understand the cognitive and cerebral bases that allow us to use tools. The current cognitivist models explain tool use through the hypothesis of an activation of gestural memories (i.e., gestural or visuo-kinetic engrams, or sensorimotor knowledge of manipulation; see Rothi, Ochipa, & Heilman, 1991; Buxbaum, 2001). This theory is unable to explain the use of novel tools. An alternative hypothesis suggests that any situation of tool use (familiar and new) requires technical reasoning (e.g., Osiurak & Badets, 2016). This reasoning, involving the left inferior parietal lobe, would enable to formulate the mechanical action and to evaluate the physical properties of tools and objects. One of the aims of this thesis was to better understand the tool use disorders in brain-damaged patients, within the framework of the technical reasoning hypothesis. This work has also focused on the investigation of numerical cognition. By this term we refer to mental arithmetic and math, but also to analogical code (see the Triple Code Model, Dehaene & Cohen, 1995). It corresponds to the representation of numerical quantities, stored in the parietal lobes. In other words, this code would contain the sense of number (Dehaene, 1997) to associate a symbolic label (e.g., Arabic digits) with the corresponding quantity. In everyday life, this representation would be critical to compare or estimate the numerosity of object sets.The main objective of this thesis was to explore, at cognitive and cerebral levels, whether links exist between both fields of interest that are tool use and numerical cognition. Indeed, we noticed that both capacities need a common process of magnitude estimation (i.e., physical properties and numerical quantity). In addition, at the cerebral level, they require the activation of common regions in the parietal lobe. We relied on the Theory Of Magnitude (ATOM) formulated by Walsh (2003). It postulates that all magnitudes, namely the dimensions described by “more than/less than” relationships (e.g., Is this stick long enough to reach a given place?), are processed within a common and unique system, in the right parietal lobe (Bueti & Walsh, 2009). We assumed that the magnitude of physical properties could be processed in this system as well as the discrete (e.g., numbers) and continuous (e.g., time, space) magnitudes. Our results highlighted a disorder of novel tool-use in LBD patients, who nevertheless had no difficulty in estimating physical properties. The RBD patients were impaired in all conditions assessing the numerical cognition, refuting the predictions derived from TCM. They were also impaired in the estimation of the length but not of the weight. As associations between estimation of length and of weight, and between estimation of length and numerical cognition have been observed in the different groups, we suggest that the magnitude system be divided into subsystems. Surprisingly, we found an association between tool use and approximate calculation in LBD patients assuming an attempt to compensate tool use by calculation. Finally, it seems that tool use and numerical cognition rely on distinct neurocognitive mechanisms since the different types of magnitudes might not be processed within a common and unique system of magnitude
Teixeira, SebastiÃo Ribeiro DÂAlva. "Seletividade da rede-de-espera utilizada na captura da sardinha-bandeira, Opisthonema oglinum (Lesueur, 1818)." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13789.
Повний текст джерелаA sardinha-bandeira, Opisthonema oglinum, pertence à famÃlia Clupeidae da ordem Clupeiformes sendo uma das cinco espÃcies do gÃnero Opisthonema. No Estado do Cearà sua captura se estende ao longo de toda a costa, durante todo o ano, com as melhores pescarias ocorrendo entre maio e dezembro. O presente trabalho teve como objetivo determinar a estrutura da populaÃÃo, a relaÃÃo peso/comprimento da sardinha-bandeira e a seletividade das redes-de-espera utilizadas na sua captura na Praia da Caponga, municÃpio de Cascavel, CearÃ, Brasil. Os dados de comprimento total (cm) e peso individual (g) foram obtidos de dois grupos, cada um com 780 indivÃduos, capturados por redes-de-espera com malhas de 5 cm e 6 cm entre nÃs opostos, no perÃodo de agosto a outubro de 2014. Esses dados foram descritos em histogramas de frequÃncia de comprimento e peso, sendo mais representativas as classes de 21,6 cm (24,23%) e de 87,0 g (32,31%) para a malha de 5 cm e de 25,7 cm (23,08%) e de 117,9 g (26,03%), para a de 6 cm. Quando todos os indivÃduos foram reunidos em um Ãnico grupo (1.560), sem distinÃÃo do tamanho da malha, as classes mais representativas foram a de 23,0 cm de comprimento (18,59%) e a de 105,5 g de peso (20,38%). As equaÃÃes que representaram as relaÃÃes peso/comprimento foram as seguintes: y=0,016 x^2,7636 (780 indivÃduos capturados com a malha de 5 cm); y=0,031 x^2,5635 (780 indivÃduos capturados com a malha de 6 cm); e y=0,021 x^2,6828 (1.560 indivÃduos). Para o estudo da seletividade foram analisados todos os exemplares de sardinha-bandeira (1.560) capturados com as redes-de-espera de malha de 5 cm e 6 cm. O comprimento mÃdio de seleÃÃo foi de 23,7 cm para a malha de 5 cm e de 28,5 cm para a de 6 cm. A amplitude de seleÃÃo foi de 23,7  7,9 cm e de 28,5  7,9 cm para as malhas de 5 cm e 6 cm, respectivamente. As equaÃÃes das curvas de seleÃÃo das redes-de-espera para os dois tamanhos de malha foram obtidas, e a probabilidade de capturar indivÃduos com comprimento inferior ao mÃnimo, estabelecido em 15 cm, foi muito baixa e correspondeu a 1,32% e 0,03% para as malhas de 5 cm e de 6 cm, respectivamente. Esta informaÃÃo à de grande valia para a manutenÃÃo do estoque da sardinha-bandeira capturada na Praia da Caponga, CearÃ.
Atlantic thread-herring, Opisthonema oglinum, belongs to the family Clupeidae and to the order Clupeiformes. It is one of the five species of the genus Opisthonema. In the state of CearÃ, it is caught along the entire coast, throughout the year, with the best fisheries occurring between May and December. This work aimed to study the population structure, the length/weight relationships of the Atlantic thread-herring and to determine gear selectivity of drift nets used for catching them in Caponga Beach, Cascavel, CearÃ, Brazil. Data of total length (cm) and individual weight (g) were obtained from two groups, each with 780 individuals captured by drift nets with meshes of 5 cm and 6 cm, from August to October 2014. These data are showed as histograms. The most representative classes of length and weight were 21.6 cm (24.23%) and 87.0 g (32.31%) for 5 cm mesh, while for the 6 cm mesh, the main classes were 25.7 cm (23.08%) and 117.9 g (26.03%). When all data was combined into a single group (1,560), without the mesh size distinction, the most representative classes were 23.0 cm long (18.59%) and 105.5 g in weight (20.38%). The equations representing the weight/length ratios were as follows: y=0.016 x^2.7636 (780 individuals captured with a mesh of 5 cm); y=0.031 x^2.5635 (780 individuals caught with a mesh of 6 cm); and y=0.021 x^2.6828 (1,560 individuals). To study the selectivity, 1,560 Atlantic thread-herring specimens captured with drift nets of 5 cm and 6 cm were analyzed. The selection mean length was 23.7 cm for 5 cm mesh and 28.5 cm for 6 cm mesh. The range of selection was 23.7 Â 7.9 cm and 28.5 Â 7.9 cm for 5 cm mesh and 6 cm mesh, respectively. The equations of the selection curves for the two mesh sizes were obtained, and the probability of capturing individuals with length less than the established minimum of 15 cm was very low, amounting to 1.32% and 0.03% for the meshes of 5 cm and 6 cm, respectively. This information is of great value to maintain the stock of Atlantic thread-herring in Caponga Beach, CearÃ.
Heikkinen, J. (Juuso). "Recovery of calf muscle isokinetic strength after acute Achilles tendon rupture." Doctoral thesis, Oulun yliopisto, 2017. http://urn.fi/urn:isbn:9789526216195.
Повний текст джерелаTiivistelmä Akillesjännerepeämän (ATR) konservatiivisella ja leikkaushoidolla hoidolla saavutetaan hyvät kliiniset tulokset. Viimeisimmät tutkimukset kuitenkin viittaavat leikkaushoidolla saavutettavan paremmat voimat kuin konservatiivisella hoidolla, mutta rakenteelliset selitykset leikkaushoidon paremmalle pohjelihaksen voimille ovat epäselviä. Työn tarkoituksena oli verrata pohjelihaksen isokineettisten voimien palautumista, pohjelihastilavuuksia, rasvadegeneraatiota ja akillesjänteen (AT) pidentymistä ATR:n konservatiivisen- ja leikkaushoidon jälkeen. Tarkoituksena oli arvioida lihaskalvovahvikkeen merkitystä pohjelihaksen isokineettisten voimien palautumisessa pitkäaikaisseurannassa. Lisäksi tutkimme AT pidentymisen, pohjelihastilavuuksien ja rasvadegeneraation suhdetta pohjelihaksen isokineettisiin voimiin ATR:n leikkaushoidon jälkeen 14 v seurannassa. Leikkaushoidolla saavutettiin 10–18 % paremmat pohjelihaksen voimat verrattuna konservatiiviseen hoitoon. Leikkaushoidon jälkeen soleuslihasten tilavuuksien puoliero terveen jalan hyväksi oli 18 % ja konservatiivisen hoidon jälkeen 25 %. 18 kk kohdalla konservatiivisesti hoidettujen AT oli 19 mm pidempi verrattuna leikkauksella hoidettuihin. 18 kk kohdalla potilaat, joilla vamma jalan soleuslihaksen rasva-degeneraatio oli korkea (2–3), kärsivät suuremmasta soleuslihaksen atrofiasta ja pohjelihaksen voima puolierosta. Voimat eivät muuttuneet 12 kk ja 14 v kontrollien välillä. Lihaskalvovahvikkeella ei ollut merkitystä voimien palautumisessa pelkkään suoraan ompeluun verrattuna, mutta vammapuoli jäi 10–18 % heikommaksi verrattuna terveeseen jalkaan. Vammajalan akillesjänne oli 12 mm pidempi terveeseen jalkaan verrattuna. Vammajalan kolmipäisen pohjelihaksen tilavuus oli 11–13 % pienempi verrattuna terveeseen jalkaan. Akillesjänteen pituus korreloi pohjelihaksen voimapuolieron sekä pohjelihasatrofian kanssa. Akillesjännerepeämän leikkaushoidolla pohjelihaksen isokineettiset voimat palautuvat nopeammin ja täydellisemmin kuin konservatiivisella hoidolla. Leikkaushoitoon verrattuna konservatiivinen hoito johtaa suurempaan soleuslihaksen atrofiaan ja akillesjänteen pidentymään, mikä selittää osittain leikkaushoidon paremmat voimatulokset. 14 v seurannassa lihaskalvovahvikkeesta ei ole etua akillesjännerepeämän leikkaushoidossa. Akillesjännerepeämän leikkaushoidosta huolimatta potilaalle jää terveeseen jalkaan verrattuna 10–18 % pohjelihasten voimapuoliero. Akillesjänteen pidentyminen mahdollisesti selittää pohjelihasten atrofian, rasvadegeneraation ja pysyvän pohjelihasten voimapuolieron akillesjännerepeämän leikkaushoidon jälkeen 14 v seurannassa
CHIMENTO, CARLO. "ASSESSMENT OF THE CARBON SEQUESTRATION POTENTIAL IN SOIL AND IN BELOWGROUND BIOMASS OF SIX PERENNIAL BIOMASS CROP." Doctoral thesis, Università Cattolica del Sacro Cuore, 2015. http://hdl.handle.net/10280/6072.
Повний текст джерелаThe objective of the present research was to identify the bioenergy crop with the greatest carbon sequestration potential among three perennial woody crops (poplar, black locust and willow) and three perennial herbaceous crops (giant reed, miscanthus and switchgrass) at the sixth year from plantation and in the same location. First of all the SOC stock variations for the first 1 m soil depth and the quantification of seven soil C fractions related to SOC stabilization level of the first 30 cm of soil were assessed; secondly, a characterization of the root system and the traits which affect the carbon allocation in soil were considered. The results confirm that the establishment of perennial bioenergy crops in previous arable fields can be a suitable option to sequester carbon (C) belowground. However, a different C sequestration capacity was observed between woody and herbaceous crops: woody species showed the greatest SOC sequestration potential in the first soil layer (0-10 cm of soil) but their ability to allocate root biomass in the deeper soil layers was limited; while, the herbaceous species allocated a high amount of root biomass in the deeper soil layers, but only switchgrass and miscanthus sequester C in the first soil layer.
Tomala, Daniel. "Návrh letounu podle předpisu FAR 103." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-227917.
Повний текст джерелаRyan, Anne Garrett. "Surveillance of Poisson and Multinomial Processes." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/26549.
Повний текст джерелаPh. D.
Bätzel, Carolin. "Verbesserung der medizinischen Versorgung und des Outcomes sehr kleiner und leichter Frühgeborener durch klinisches Benchmarking." Doctoral thesis, Humboldt-Universität zu Berlin, Medizinische Fakultät - Universitätsklinikum Charité, 2006. http://dx.doi.org/10.18452/15454.
Повний текст джерелаThis dissertation presents the results of a 1997 - 2001 benchmark project in co-operation with the "Berliner Klinik für Neonatologie der Charité Campus Mitte" and the "Abteilung für neonatologische Intensivmedizin der Universitätskinderklinik" in Innsbruck. The study is based on the Vermont-Oxford-Neonatal-Network''s data. After analysing the results, further evidence was analysed by way of literary research in PubMed and the Cochrane Database of Systematic Reviews. Afterwards, a questionnaire was created, lining out the clinical guidelines of the relevant outcome parameters. The respiratory distress syndrom, the necrotising enterocolitis and the bacterial infections were selected for the benchmark. The internal guidelines'' analysis showed that there were differences between the two clinics'' results in respiratory interventions, feeding and the management of infections. The discussion made clear that research based on further evidence is necessary in many fields.
Raddo, Thiago Roberto. "Proposal of a new approach for BER evaluation of multirate, multiservice OCDMA systems." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-16102012-105005/.
Повний текст джерелаA contínua evolução da tecnologia de comunicações ópticas observada nos últimos anos vem possibilitando atender a crescente demanda dos usuários por maior largura de banda. Esta nova demanda é atribuída principalmente à popularidade crescente de aplicações de banda larga, tais como TV por protocolo de Internet (IPTV), televisão de alta definição (HDTV), ensino online, e-saúde, filmes digitais de super alta definição (SHD) e e-cultura baseado em vídeo 3-D full-HD. Esta vasta gama de aplicações acabará por necessitar de tipos de serviços diferenciados e taxas de transmissão de dados diversificadas. Como resultado, capacidades de suportar diferenciamento de qualidade de serviço (QoS) e transmissão de múltiplas taxas estão se tornando um desafio para as redes ópticas futuras. Dentre muitas técnicas de multiplexação existentes, OCDMA constitui-se em um candidato potencial para as redes ópticas de próxima geração, particularmente devido a características como operação assíncrona, controle de rede simplificada, fácil adição de novos usuários, e também possibilidade de QoS diferenciado na camada física. O desempenho desta técnica de acesso múltiplo é limitado principalmente por interferência múltipla de acesso (MAI). Embora em sistemas OCDMA de múltiplas taxas e multiserviços a MAI deva ser considerada binomialmente distribuída, outras distribuições de probabilidade para a análise da MAI e, consequentemente, da BER têm sido utilizadas como uma aproximação. Neste contexto, este trabalho propõe um novo formalismo para avaliar o desempenho da BER de sistemas OCDMA 1-D e 2-D de múltiplas taxas e multisserviços considerando a MAI como binomialmente distribuída, o que resulta em uma expressão mais precisa para a BER. Além disso, o método proposto neste trabalho não requer conhecimento, a priori, das sequências de códigos geradas, o que significa que a análise do desempenho do sistema é obtida mais facilmente utilizando apenas os parâmetros do código. Um sistema OCDMA de múltiplas taxas empregando códigos 1-D OOC e 2-D OFFH será também investigado. Uma comparação do desempenho em termos de BER para o sistema baseado em OOC supondo tanto a distribuição de Poisson quanto a binomial para a MAI é investigada. De forma análoga, uma comparação para o sistema de múltiplas taxas baseado em OFFH supondo desta vez tanto a distribuição gaussiana quanto a binomial para a MAI também é analisada. É mostrado que a BER em cenários de múltiplas taxas pode ser superestimada ou subestimada em várias ordens de grandeza, dependendo da distribuição suposta para a MAI e do número de usuários simultâneos no sistema. Além disso, é apresentado pela primeira vez um switch óptico híbrido de pacotes OCDM/WDM capaz de prover transmissões de múltiplas taxas e serviços diferenciados. A arquitetura do switch proposto e seu desempenho em termos de probabilidade de perda de pacotes também são apresentados. Finalmente, é mostrado que o uso da distribuição gaussiana ou poissoniana para a MAI pode não ser apropriado para uma estimativa confiável de BER, uma vez que não são aproximações aceitáveis para avaliar o desempenho de sistemas de múltiplas taxas e multiserviços com boa precisão.
Mucari, Talita Buttarello. "Análise genética de características de cresciemento e de reprodução em um rebanho da raça Canchim." Universidade Federal de São Carlos, 2006. https://repositorio.ufscar.br/handle/ufscar/5361.
Повний текст джерелаFinanciadora de Estudos e Projetos
The objective in this study was to estimate genetic parameters for the traits days to calving (DC), days to first calving (DFC) and gestation length (GL), associated with reproductive performance of females, as well as to evaluate the relationships of DC and DFC with scrotal circumference at 12 months of age (SC12) and body weights at 12 months of age (W12), at calving (WC), at first calving (WFC), at beginning of the breeding season (WBS) and at beginning of the first breeding season (WFBS), and of GL with weight at birth (BW) and W12. Analyses were done using animal models and the derivative free restricted maximum likelihood methodology. Estimates of heritabilities varied from 0.02 to 0.09 for DC, from 0.15 to 0.23 for DFC and from 0.04 to 0.41 for GL, depending on the data set and the model used for each trait. Genetic correlations of DC and DFC with SC12 showed that it is possible to improve these female reproductive traits by selecting for increase in SC12. With respect to W12, selection to increase this trait should not produce significant changes in DC, but may increase DFC. Associations of the other female body weights with DFC and DC indicated that heavier females experience lower reproductive performance. Estimates of genetic correlations of GL with BW and W12 indicated that selection to change GL will result in correlated response in BW with no changes in W12.
O objetivo neste estudo foi estimar parâmetros genéticos para as características dias para o parto (DP), dias para o primeiro parto (DPP) e período de gestação (PG), associadas ao desempenho reprodutivo de fêmeas, bem como avaliar as relações de DP e DPP com o perímetro escrotal aos 12 meses de idade (PE12) e os pesos aos 12 meses de idade de machos e fêmeas (P12), ao parto (PVP), ao primeiro parto (PVPP), à entrada da estação de monta (PEM) e à entrada da primeira estação de monta (PEPM), e do PG com o peso do bezerro ao nascimento (PN) e com P12. As análises foram realizadas utilizando modelos animais e o método da máxima verossimilhança restrita livre de derivadas. As estimativas de herdabilidade variaram de 0,02 a 0,09 para DP, de 0,15 a 0,23 para DPP e de 0,04 a 0,41 para PG, dependendo do arquivo e do modelo utilizados para cada característica. As correlações genéticas de DP e DPP com PE12 mostraram que é possível obter melhoria das características reprodutivas de fêmeas selecionando-se para aumento de PE12. Com relação a P12, a seleção para aumentar essa característica não deve gerar resposta significativa em DP, mas pode aumentar DPP. A avaliação das associações dos demais pesos de fêmeas com DPP e DP indicou que fêmeas maiores apresentam pior desempenho reprodutivo. As correlações genéticas do PG com PN e com P12 mostraram que a utilização de PG como critério de seleção resulta em resposta correlacionada em PN sem alterar P12.
Lim, Yen Peng. "Malnutrition and clinical outcomes in elderly patients from a Singapore acute hospital." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/44143/1/Yen_Peng_Lim_Thesis.pdf.
Повний текст джерелаGouveia, Bruno Pauka. "Modelo de mistura padrão com tempos de vida exponenciais ponderados." Universidade Federal de São Carlos, 2010. https://repositorio.ufscar.br/handle/ufscar/4544.
Повний текст джерелаFinanciadora de Estudos e Projetos
In this work, we brie_y introduce the concepts of long-term survival analysis. We dedicated ourselves exclusively to the standard mixture cure model from Boag (1949) and Berkson & Gage (1952), showing its deduction and presenting the imunes probability function, which is taken from the model itself and we investigated the identi_ability issues of the mixture model. Motivated by the possibility that a experiment design can lead to a biased sample selection, we studied the weighted probability distributions, more speci_cally the weighted exponential distributions family and its properties. We studied two distributions that belong to this family; namely, the length biased exponential distribution and the beta exponential distribution. Using the GAMLSS package in R, we made some simulation studies intending to evidence the bias that occur when the possibility of a weighted sample is ignored.
Neste trabalho apresentamos brevemente os conceitos que de_nem a análise de sobreviv ência de longa duração. Dedicamo-nos exclusivamente ao modelo de mistura padrão de Boag (1949) e Berkson & Gage (1952), sendo que nos preocupamos com sua formulação, apresentamos a função probabilidade de imunes, que é derivada do próprio modelo e investigamos a questão da identi_cabilidade. Motivados pela possibilidade de que um planejamento experimental leve a uma seleção viciada da amostra, estudamos as distribui ções ponderadas de probabilidade, mais especi_camente a família das distribuições exponenciais ponderadas e suas propriedades. Estudamos duas distribuições pertencentes a essa família, a distribuição exponencial length biased e a distribuição beta exponencial. Fazendo uso do pacote GAMLSS em R, realizamos alguns estudos de simulação com o intuito de evidenciar o erro cometido quando se ignora a possibilidade de que a amostra seja proveniente de uma distribuição ponderada.
Štys, Jiří. "Implementace statistických kompresních metod." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2013. http://www.nusl.cz/ntk/nusl-413295.
Повний текст джерелаBarnes, Michael Edward. "Emberizid digestive tract length and weight dynamics." 1987. http://hdl.handle.net/2097/22335.
Повний текст джерелаLin, Yi-Hean, and 林逸軒. "Optimal Conflict-avoiding Codes of Even Length and Weight 3." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/07715500721594548091.
Повний текст джерела國立交通大學
應用數學系所
98
A conflict-avoiding code of length n and weight k is defined as a set C Contains in (Z_2)^n of binary vectors, called codewords, all of Hamming weight k such that the distance of arbitrary cyclic shifts of two distinct codewords in C is at least 2k-2. In this thesis, we obtain direct constructions for optimal conflict-avoiding codes of length n = 4m where m is odd and weight 3 by using certain types of sequences which are newly constructed. As a consequence (with known results), we have completely settled the problem of constructing optimal con°ict-avoiding codes of even length and weight 3.