Relevant bibliographies by topics / Lenght

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Lenght'

Author: Grafiati
Published: 25 May 2024

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Journal articles on the topic "Lenght"

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Wiyanto, Eko, and Anto Yahya Putra. "Indeks Morfologi Tubuh Kambing Peranakan Etawah (PE) di Sentra Pembibitan Kambing Kecamatan Mestong Kabupaten Muaro Jambi." Jurnal Ilmiah Ilmu-Ilmu Peternakan 23, no. 1 (June 11, 2020): 55–60. http://dx.doi.org/10.22437/jiiip.v23i1.9607.

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Penelitian ini dilakukan di Sentra Peternakan Kambing di kecamatan Mestong kabupaten Muaro Jambi selama 6 (enam) bulan. Metode yang digunakan dalam penelitian ini adalah survai. Obyek yang diamati adalah kambing Peranakan Etawah umur lepas sapih (6 bulan). Penentuan sampel dilakukan dengan metode purposive sampling. Tujuan dari penelitian ini adalah mengetahui indeks morfologi ukuran-ukuran tubuh kambing Peranakan Etawah yang meliputi : weight, height slope, length index, width slope, depth index, foreleg length, balance dan cumulative index. Hasil penelitian menunjukkan bahwa rata-rata ukuran tubuh kambing jantan lebih besar dibandingkan dengan kambing betina. Dari perhitungan didapatkan nilai indeks morfologi kambing jantan adalah weight = 52726,34; Height slope = -1,88; Lenght index = 1,0165; Width slope = 0,9935; Depht index = 0,5003 dan Foreleg length = 27,24. Sedangkan indeks morfologi kambing betina adalah Weight = 47477,46; Height slope = -1,94; Lenght index = 1,0278; Width slope = 0,9645; Depht index = 0,4988 dan Foreleg lenght = 26,34. Kesimpulan dari penelitian ini adalah kambing Peranakan Etawah umur lepas sapih di Sentra Pembibitan Kambing di kecamatan Mestong kabupaten Muaro Jambi mempunyai indeks morfologi yang tidak berbeda jauh dengan kambing Peranakan Etawah yang ada di beberapa daerah di Indonesia. kambing Peranakan Etawah, Indeks morfologi, umur lepas sapih.
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Ibe, S. N., V. N. Obasi, G. S. Ojewola, and E. N. Nwachukwu. "Heterosis and recipocal effects for growth traits in crosses of New zealand white, Dutch and chinchilla breeds of rabbit." Nigerian Journal of Animal Production 32, no. 2 (January 3, 2021): 191–97. http://dx.doi.org/10.51791/njap.v32i2.1030.

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Records of body weight (BW) and linear body measurement (LBMs), namely body length (BL), body width (bwh), heart girth (hg), height-at withers (HW), shoulder-to-tail drops (ST), ear lenght (EL), head-to-shoulder (HS), lenght of fore limb (LFL), lenght of hind limb (LHL) and head circumference (HC) taken on 72 kits produced through complete dialled crosses were used to estimate heterosis and recipocal effects. The crosses involved New Zealand White (NZW), Dutch (DT) and Cchinchilla (CH) breeds of rabbit. Only NZW x DT and CH x DT crosses showed heterosis for BWs, indicating that non-additive sults for all effects of genes could be important for the LBMs were generally similar. Recipocal effect was not significant (p<0.05) for all traits. suggesting that any of the breeds may be used as sire or dam in planned crossesbreeding programmes.
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King, Alexander H., and L. Balasubramanian. "Grain Boundaries of Finit Lenght." Materials Science Forum 189-190 (July 1995): 143–48. http://dx.doi.org/10.4028/www.scientific.net/msf.189-190.143.

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Brutti, Marilene Dos Reis, and Luiz Augusto Salles das Neves. "Estudo dos efeitos fisiológicos do ácido Ciclopentilideno-Bis (Tioglicólico) - ACPTG em Phaseolus Vulgaris L. cv Rico 23 em três concentrações." Ciência e Natura 16, no. 16 (December 12, 1994): 57. http://dx.doi.org/10.5902/2179460x26495.

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In order to verify the mutation capacity of the chemical compound CPATG {Cyclopentilideno-Bis (Tioglicolic) Acid} synthetized by the Chemistry Departament of UFSM in Phaseolus vulgaris L. the germination (%), hypocotyl lenght (cm) , and epycotyl lenght (cm) were analized on the M1 generation, 168 hours after sowing in Petri dishes with CPATG concentration of 1%, 2%, and 3%.The concentration of 3% was more genotoxic considering germination, hypocotyl and epycotyl lenghts were more affected by the 1% concentration. Seedling height decreased with increasing CPT AG concentration.
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Hasan, Sulfi Upi, and Fadillah Fadillah. "The Lenght Effect of Fermentation on Alcohol Level of Arak (Ballo’) at Binamu Subdistrict of Jeneponto Regency." Jurnal Analis Medika Biosains (JAMBS) 8, no. 2 (September 27, 2021): 121. http://dx.doi.org/10.32807/jambs.v8i2.249.

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Arak is one traditional drink types that is included in the alcoholic beverage class. It is obtained from fermented foods containing sugar. One of alcohol type that is tested for levels is ethanol. This is a transparent liquid that easily evaporates and mixes with water. One of the factors that affect ethanol content is the lenght of fermentation. This research aimed to know the lenght effect of fermentation on alcohol level of arak (Ballo’) at Binamu subdistrict of Jeneponto regency with variety of time namely 0, 1, 3, 5 until 7 days. This research is expected to be recommended to community about the suggested length of fermentation. Method of research was experimental using sample of fresh ballo’ that had distinctive and sweet smell. The result of research indicated that the length variant of fermentation for 0 day was 5,52%, 1 day was 9,81%, 3 days were 19,66%, 5 days were 21,15 % and 7 days were 18,92%. The obtained level achieved quality standard based on National Agency of Drug and Food Control (BPOM) No. 14/2016 and according to result of statistical test obtained, the fermentation lenght has a very significant effect on the ethanol content produced.
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Elisabeth, Elisabeth, and Puji Astuti. "Effect of Bokashi Fertilizer and Green Tonik Liquid Fertilizer on the Growth and Yield of Long Bean (Vigna sinensisL.)Parade Tavi Variety." AGRIFOR 17, no. 1 (March 10, 2018): 81. http://dx.doi.org/10.31293/af.v17i1.3352.

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The purpose of the research is to study the effect of bokashi fertilizer and Green Tonik liquid fertilizer and its interaction on the growth and yield of long bean plant, as well as to find the proper dosage of bokashi fertilizer and Green Tonik liquid fertilizer concentration for obtaining the best yield of long bean.The research was conducted using Completely Randomized Design (CRD) in 4 x 4 Factorial Experiment and four replications. The factor was the dosage of bokashi fertilizer (B) consisting of 4 levels : no bokashi fertilizer application (b0), 100 g/polybag(b1), 200 g/polybag (b2), and 300 g/polybag(b3). The second factor was the concentration of Green Tonik liquid fertilizer (N) consisting 4 levels : no Green Tonikfertilizer application (n0), 2 ml/ l water (n1), 4 ml/l water (n2), and 6 ml/lwater (n3).The results showed that: (1) the bokashi fertilizer treatment affected significantly on the plant lenght at age 15 days after planting, number of pods and weight of pods per plant, but it did not affect significantly on the plant lenght at age 22, 29 and 36 days after planting, age of plants flowered, and pods lenght; (2)the Green Tonik liquid treatment affected significantly on the plant lenght at age 22, 29, and 60 days after plantingand weight of pods per plant, but it did not affect significantly on the plant lenght at age 15 days after planting, age of plant flowered, and pods lenght; (3) the interaction treatment between bokashi fertilizer and Green Tonik liquid fertilizer affected significantly on the plant lenght at age 15 days after planting, pods lenght, and weight of pods per plant, but did not affect significantly on the plant lenght at age 22, 29, and 36 after planting, age of plant flowered, and number of pods; and (4) the weighest weight of pods per plant was produced in b2n3 treatment of 401,75 g/plant, while the lighest one was produced in b0n0 treatment of 145,75 g/plant.
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Eames, N., R. Baker, and A. Cosgrove. "Estimating gastrocnemius lenght from joint rotation measurements." Gait & Posture 3, no. 4 (December 1995): 277–78. http://dx.doi.org/10.1016/0966-6362(96)82878-5.

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Hermanto, Hermanto, Bambang Suwignyo Bambang Suwignyo, and Nafiatul Nafiatul. "KUALITAS KIMIA DAN KANDUNGAN KLOROFIL TANAMAN ALFALFA (Medicago sativa L.) DENGAN LAMA PENYINARAN DAN DOSIS DOLOMIT YANG BERBEDA PADA TANAH REGOSOL." Buletin Peternakan 41, no. 1 (February 27, 2017): 54. http://dx.doi.org/10.21059/buletinpeternak.v41i1.9831.

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This study aimed to analyze the quality of chemical and chlorophyll content of alfalfa plants with lenght of irradiation and dose of dolomite on the regosol soil. The experiment was conducted implemented in Greenhouse Laboratory Forage and Pasture Faculty of Animal Sciences University of Gadjah Mada, from May to September 2015. This study used a Completely Randomized Design (CRD) 3 x 3 factorial design with two factors treatments and four replications. The first factor is the dose of dolomite (D) with 3 treatment (D0 = without dolomite, D1 = dolomite 6 t/hectare or 90 g/polybag and D2= dolomite 12 t/hectare or 180 g/polybag). The second factor is the length of irradiation (C) with 3 treatments (C0 = irradiating 12 hours, C1 = irradiating 14 hours and C2 = irradiating 16 hours). Data were statistically analyzed using analysis of variance and significant results continued with Duncan test at 5% level.Parameters measured were the proximate analysis (dry matter, organic matter, crude protein, crude fiber, crude fat, ash) and alfalfa chlorophyll content. The results showed that there was no significant interaction effect between lenght of irradiation and dose of dolomite treatment to the dry matter content, organic matter, crude protein, crude fiber, crude fat, ash and alfalfa chlorophyll content. The treatment lenght of irradiation are significant (P<0,05) of the organic matter content and ash content of alfalfa. Dose of dolomite treatment was not significant on all parameters of the study. The results showed that the treatment and dosage of radiation are dolomite not significant on the production of plant fresh weight, dry weight of plants, dry matter content, organic matter, crude protein, crude fiber, crude fat, ash and content alfalfa chlorophyll. No interaction between treatment and dosage of radiation are dolomite which significantly affect production plant fresh weight, dry weight of plants, dry matter content, organic matter, crude protein, crude fiber, crude fat, ash and alfalfa chlorophyll content. (Keywords: Alfalfa, lenght of irradiation, dolomite, regosol soil)
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F. Riandari, F. Riandari, and Sri Priyantini M. "The Length of Stay Difference between Under 5 Years Patient with Acute Diarrhoea Treated With and Without Probiotic An Analytical Study in RSUD Kota Semarang during the Period January to December 2007." Sains Medika : Jurnal Kedokteran dan Kesehatan 3, no. 1 (June 11, 2011): 78. http://dx.doi.org/10.30659/sainsmed.v3i1.412.

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Background: Diarrhoea is still public health problem and often cause outbreak with various morbidity and mortality. The long onset of acute diarrhoea causes the length of stay that affect the cost. So proper management is needed to shorten inpatient length of stay. Probiotic can make the convalescence of children with acute diarrhoea faster. The aim of the study is to know the lenght of stay difference between underfive year old children with acute diarrhoea treated with and without probiotic.Design and Methods: The study was an analitical study with case control design. Study Sample were all inpatient 6-24 month old children with acute diarrhoea in Kota semarang Hospital since January – December 2007. Data were obtained from medical record in pediatric unit. Data analysis with stastitical test of Mann Whitney.Results: Of 130 samples, the lenght of stay average of < 5 years old children with acute diarrhoea with probiotik was 3,42 days compare 4,03 days children acute diarrhoea without probiotik. It is concluded that there was a significantly difference between two groups acute diarrhoea with probiotik and without probiotik.Conclusion: There was a significant difference between the length of stay for the patients with acute diarrhea with and without probiotic treatment. Mean of the length of stay for under 5 years old baby with and without probiotic were 3.42 days and 4.03 days respectively (Sains Medika, 3(1):78-83).
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Ristic, Dejan, Nebojsa Jovanovic, Voja Cvetkovic, and Branislav Vracevic. "Lenght of hospitalizacion of patients with ankle fracture." Acta chirurgica Iugoslavica 58, no. 1 (2011): 73–76. http://dx.doi.org/10.2298/aci1101073r.

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Introduction: Fractures of ankle are one of the most frequent interacticular fractures that require operative treatment. During the work, the influence of some particular factors ( the length of the preoperative period, the complications of the operative period and the aplication of antibiotics) to the length of the postopertive intrahospital stay, are scrutinised. Method: The patients with ankle fracture treated by operation were comprised by the retrospective study in the Traumatologic department in the CHC Zemun in period of 2003 to 2006, and they were devided in three groups depending on the length of postoperative stay. Results: The period of time before the operation(?= 0.405, p<0.01), the appearance of complications (?= 0.465, p<0.01), as well as the length of the period of antibiotic application (?=0.580, p<0.01), significantly influence to the length of the postoperative intrahospital stay. The everage length of intrahospital stay for the patients with registered complications was 19 days, while for the patients without registered complications was 10 days. There is statistically significant difference in the length of intrahospital recovery, depending on various complications (logrank=35.74; df=5; p<0.01). Conclusion: It is necessary to treat these fractures as soon as possible, for this way of medical treatment results with less number of complications, shorter stay of patients in hospital and thereby reduced treatment costs.
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Dissertations / Theses on the topic "Lenght"

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Levold, Pål. "Viscous Flow Around Finite Lenght Circular Cylinder." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for marin teknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18641.

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Viscous flow around circular cylinders is a classical research topic in fluid dynamics with a vast amount of practical applications in the field of offshore marine technology. In the flow around cylinders of finite length, complex wake behaviours and coherent structures occur even at relatively low Reynolds numbers. An understanding of the nature and dynamics behind such behaviour could form a basis for improved designs and innovative solutions for offshore and subsea constructions.In the present study, flow around long finite cylinders at Re = 100 is investigated numerically using the incompressible Navier-Stokes Equations solver MGLET. To study the isolated flow near the free end, a cylinder with aspect ratio L/D = 50 is chosen. The flow over the free end gives rise to a wake consisting of two vortex shedding cells with different shedding frequencies; one small near the free end and one larger in the central region of the span. It is found that each vortex shed in the end cell bends horizontally and connects with the upstream vortex shed from the opposite side of the cylinder. The horizontal vortex shedding is found to give rise to a pair of trailing vortices in the time averaged flow.When a vortex is shed with a large phase difference between the two cells, the vortex is split and connects with other surrounding vortices. This phenomena is commonly referred to as vortex dislocations and occurs with the beat frequency, i.e. the difference between the two vortex shedding frequencies. It is found that this frequency can be detected in time histories of $u$ in the wake at the spanwise centre.A second configuration, consisting of a wall mounted cylinder with aspect ratio L/D = 25 is simulated in order to study the effect of introducing a no-slip surface. The effect on the end cell is found to be minimal, while the central cell shedding frequency is reduced. Comparisons with published data on a cylinder with aspect ratio L/D = 25 and two free ends shows that both the reduction of aspect ratio and the introduction of the no-slip boundary condition contributes to the reduced shedding frequency.
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Gonzalez, Camelo Sandra Patricia. "BCS superfluid Fermi systems with large scattering lenght." Doctoral thesis, SISSA, 2007. http://hdl.handle.net/20.500.11767/3931.

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Faggion, Mauro <1976&gt. "L'evoluzione dell'arm's lenght principle nella dimensione internazionale e comunitaria." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amsdottorato.unibo.it/9122/1/tesi%20definitiva_17_06_2019%20%283%29.pdf.

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Gunneriusson, Olof. "Method for determining phasedistribution and characteristic lenghts in cBN-composite materials." Thesis, Uppsala universitet, Institutionen för kemi - Ångström, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-206276.

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An image analysis method has been developed for Sandvik to determine phasecompositions and characteristic length of the binding phase in cubic Boron Nitride(cBN)-composites with low contents of cBN (35-75%).The method consists of taking pictures with a Scanning Electron Microscope,gathering elemental data with X-ray Diffraction (XRD) as well as Energy-dispersiveX-ray Spectroscopy (EDS) and finally using a Matlab program developed for this workto calculate phase compositions and statistical data from the characteristic length ofthe binding phase.Using these methods four different phases were identified in the samples: Blackparticles, most likely made of cBN. A dark gray phase around the black particles, thatconsists of Al-compounds. A light grey binding phase, consisting of TiN or Ti(C,N).Finally there were small traces of white particles which were identified as a product ofabrasive action on cermet milling bodies added during the milling.Mean value, standard deviation and median of the characteristic length of the bindingphase was calculated. For all samples the median value was consistent, sometimeseven being identical for the analyzed sites. This indicates that the binding phase wasevenly distributed across almost all samples.
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CONTE, GRAZIANA. "No-go theorems for quantum information theory and computational logic for variable lenght quantum registers." Doctoral thesis, Università degli Studi di Milano, 2008. http://hdl.handle.net/2434/59837.

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In this dissertation we take in account the possibility to face the notion of quantum information from two different points of view: meanwhile in the first part we develop a concrete approach to the notion of quantum information, in the second part we proceed to a more abstract approach. The firts part explores what quantum mechanics forbids to do with information encoded in states of quantum systems. Many of the results of researches about what we can and what we can t do with the information encoded in quantum states are known as no-go theorems; in this dissertation we explore new limitations on the possibility to manipulate quantum information revealing that many easy tasks for classical information are impossible when the information is encoded in quantum states. As result of our analysis it arises that the nature of information encoded in quantum states restricts in a very structured way the possible manipulations or exact behaviour of the operations on the information itself. In the second part of dissertation we concentrate on logic-algebraich approach to quantum information. We relax the condition of a quantum circuit constitued by a fixed number of particles and we take in account a quantum system of variable and undeterminate number of particles. This approach is developed in the mathematical framework of Fock space which allows a more flexible treatment of information encoded in quantum register of variable lenght. As consequence, we proceed towards a possible logic-algebraic formalization of the behaviour of quantum information encoded in variable lenght registers during a computational process.
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Ogunjobi, Taiwo A. "Computational Study of Ring-Cusp Magnet Configurations that Provide Maximum Electron Confinement." Wright State University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=wright1166226698.

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Lemos, Carla Alexandra Ribeiro Cerqueira de. "Aspetos estruturais e funcionais do complexo telómero/telomerase." Master's thesis, [s.n.], 2015. http://hdl.handle.net/10284/5320.

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Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Ciências Farmacêuticas
Os telómeros são estruturas nucleoproteicas heterocromáticas de comprimento variável presentes nas extremidades dos cromossomas. Os telómeros, conjuntamente com a telomerase, permitem ultrapassar a limitação replicativa dos segmentos terminais de DNA que se verifica na maioria das células humanas somáticas e que está associada à diminuição do comprimento do DNA telomérico em cada divisão celular. As estruturas cromossómicas teloméricas são constituídas por longas extensões de repetições hexaméricas 5’-TTAGGG-3’ de cadeia dupla e por um complexo proteico específico designado por shelterin. As sua principais funções incluem a proteção das extremidades dos cromossomas contra uma eventual fusão ou degradação prematura da molécula de DNA, regulação da síntese de DNA telomérico e regulação/manutenção do comprimento do telómero. Os telómeros de mamíferos são transcritos por ação da RNA polimerase II a partir de vários loci subteloméricos e as moléculas de RNA produzidas são constituídas por um número variável de repetições da sequência 5’-UUAGGG-3’. A sua associação ao telómero ocorre através da formação do segmento híbrido RNA-DNA ou da interação de ribonucleoproteínas específicas. Apesar da função deste transcripto ainda não estar completamente estabelecida, várias evidências sugerem a sua participação no processo de regulação do comprimento dos telómeros através de vários mecanismos: inibição da atividade da telomerase, ativação de exonucleases, regulação do nível de eucromatina e/ou atuação como fator de proteção. A telomerase é um complexo ribonucleoproteico constituído por uma parte central, que inclui a subunidade catalítica com atividade de transcriptase reversa, e por RNA, que representa a sequência molde para a síntese do DNA telomérico. A sua biossíntese, maturação e atividade catalítica estão relativamente bem caracterizadas. A base molecular para a regulação da atividade da telomerase é complexa e envolve vários níveis de controlo, principalmente transcripcional. No entanto, existem diversas evidências que sugerem que a enzima é também submetida a processos de controlo pós-trancripcional e pós-traducional. Dada a relação observada entre o comprimento do DNA telomérico e processos celulares aparentemente antagónicos tais como o envelhecimento e a tumorigénese, pretende-se com o presente trabalho de revisão bibliográfica caracterizar os principais aspetos estruturais e funcionais do complexo telómero/telomerase e compreender o seu papel na manutenção do comprimento dos telómeros. Adicionalmente, é explorada a importância do conhecimento sobre a biologia molecular e celular deste complexo para a identificação e o desenvolvimento de novas abordagens para a prevenção do envelhecimento ou do cancro.
Telomeres are heterochromatic nucleoproteicas structures of varying length present at the ends of chromosomes. Telomeres, together with the telomerase, allow to overcome the limitation imposed by terminal DNA segments of chromosome to the semi-conservative DNA replication of most human somatic cells, which is associated with the decreased length of telomeric DNA in each cell division. The telomeric cromosomal structures are composed of long extensions of double stranded hexameric repetitions 5’-TTAGGG-3’ and a specific proteinaceous complex termed as shelterin. The main functions of this nucleoprotein complex include the protection of the chromosomal endings against an eventual fusion or premature DNA degradation, regulation of the telomeric DNA synthesis and regulation/maintenance of the telomere length. The telomeres of mammals are transcribed through the action of RNA polymerase II from several subtelomeric loci. The produced RNA molecules are composed of a variable number of 5’-UUAGGG-3’ sequence repetitions. The association of this RNA molecule with telomeres occurs through the formation of a RNA-DNA hybrid or interation of ribonucleoproteins. Although the function of this transcript molecule is not completely established, yet, several evidences suggest its participation in the process of regulation of telomere lenght through several mechanisms: telomerase activity inhibition, exonucleases activation, regulation of the chromatin level and/or protection factor. The telomerase is a ribonucleoprotein complex formed by a central core including the catalytic subunit with activity of reverse transcriptase and RNA, which represents the template sequence used in the telomeric DNA elongation. The biosynthesis, maturation and catalytic activity of telomerase are relatively well characterised. The molecular basis of telomerase activity regulation is complex and involve several levels of control, mainly the transcriptional level. Nonetheless, several evidences suggest that enzyme is also subjected to pos-transcriptional and pos-tradutional regulation. Given the relation observed between the length of telomeric DNA and the apparently antagonic processes of aging or tumorigenesis, the present work of bibliographic review aims to characterise the main structural and functional aspects of the complex telomere/telomerase and to understand its role in the maintenance of telomere length. Additionally, it also explores the importance of the knowledge on the molecular and cell biology of this complex to the identification and development of novel approaches to prevent aging or cancer.
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Gual, Frau Josep. "Efecto de la microvaricocelectomía y el tratamiento antioxidante oral en el adn espermático en pacientes infértiles con varicocele." Doctoral thesis, Universitat Autònoma de Barcelona, 2020. http://hdl.handle.net/10803/669516.

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Introducció El varicocele és una de las majors causes d'infertilidad masculina. El tractament quirúrgic del varicocele està indicat en pacients amb infertilitat i varicocele clínic o palpable. La microcirurgía del varicocele ha demostrat ser la millor tècnica per a la seva reparació. El varicocele grau I o subclínic, al què no es recomana el tractament quirúrgic, també pot ser causa d'infertilidad. El tractament antioxidant ha demostrat millories a la qualitat seminal de pacients infèrtils, però no hiha dades del seu efecte en pacients amb varicocele. Les espècies reactives d'xigen que es generen en augment en pacients amb varicocele, poden danyar l'ADN espermàtic, principalment a través de modificacions a la guanina. Al nostre grup, vam postular què l'efecte de dany a l'ADN podia ser més intens als telòmers, donat que els telmeros són rics en guanina, fet que podroa comprometre la fertilitat. Hipòtesi i Objectius Coneixent les anteriors afirmacions, s'ha intentat analitzar per una banda l'efecto de la microvaricocelectomia sobre la longitut telomèrica i fragmentació de l'ADN espermàtic, així com el seu efecte al seminograma i, per una altra banda, en aquells pacients amb varicocele subclínic, s'ha intentat comprovar l'efecto del tractament antioxidant tant al seminograma como a la fragmentació de l'ADN espermàtico. Material y Mètodes S'han incluido a l'estudi 12 donants de semen fèrtils i 40 pacients amb varicocele associat a infertilitat i s'han dividit en 2 grups. Grup 1: 20 pacients amb varicocele clínic, als quals s'ha analitzat abans i 9 mesos després del tractament quirúrgic mitjançant microvaricocelectomia, els valors del seminograma, la fragmentació de simple i doble cadena i la longitut telomèrica de l'ADN espermàtic. Grup 2: 20 pacients amb varicocele subclínic, als quals s'ha analitzat abans i 3 mesos després del tractament antioxidant oral mitjançant un complexe multivitamínic, els valors del seminograma i la fragmentació d'ADN espermàtic. Resultats En comparació a donants fèrtils, el varicocele no té una reducció significativa de la longitut telomèrica. Respecte a la microvaricocelectomia, tampoc ha demostrat canvis en dita longitud. No obstant això, si s'han observat canvis estadísticament significatius en quant als valors del seminograma i de la fragmentació d'DN espermàtic, tant de simple com de doble cadena. En quant al tractament antioxidant en els pacients amb varicocele subclínic, ha demostrat una reducció significativa de la fragmentació de l'espermàtic, mentre queal seminograma, només es van observar canvis a favor del tractament al nombre total de espermatozous, sense que es veieren alterats la resta de valors del seminograma. Conclusions En base als nostres resultats, podems afirmar què a la nostra sèrie no hem trobat un efecte del varicocele i del seu tractament quirúrgic sobre la longitut telomèrica de l’ADN espermàtic. Si que hem confirmat la milloria a les xifres de fragmentació de l'ADN espermàtic de simple i doble cadena i millories al seminograma gràcies al tractament. Per una altra banda, les dades sugereixen què la integritat de l'ADN espermàtic al varicocele grau I millora amb el tractament antioxidant oral."
Introducción El varicocele es una de las mayores causas de infertilidad masculina. El tratamiento quirúrgico del varicocele está indicado en pacientes con infertilidad y varicocele clínico o palpable. La microcirugía del varicocele ha demostrado ser la mejor técnica para su reparación. El varicocele grado I o subclínico, en el que no se recomienda el tratamiento quirúrgico, también puede ser causa de infertilidad. El tratamiento antioxidante ha demostrado mejorías en la calidad seminal de pacientes infértiles, pero no hay datos de su efecto en pacientes con varicocele. Las especies reactivas de oxígeno que se generan en aumento en pacientes con varicocele, pueden dañar el ADN espermático, principalmente a través de modificaciones en la guanina. En nuestro grupo, postulamos que el efecto de daño en el ADN podía ser más intenso en los telómeros, dado que los telómeros son ricos en guanina, hecho que podría comprometer la fertilidad. Hipótesis y Objetivos Conociendo las anteriores afirmaciones, se ha intentado analizar por un lado el efecto de la microvaricocelectomía sobre la longitud telomérica y fragmentación del ADN espermático, así como su efecto el seminograma; y por otro lado, en aquellos pacientes con varicocele subclínico, se ha intentado comprobar el efecto del tratamiento antioxidante tanto en el seminograma como en la fragmentación del ADN espermático. Material y Métodos Se han incluido en el estudio 12 donantes de semen fértiles y 40 pacientes con varicocele asociado a infertilidad y se han dividido en 2 grupos. Grupo 1: 20 pacientes con varicocele clínico, en los cuales se ha analizado antes y 9 meses después del tratamiento quirúrgico mediante microvaricocelectomía, los valores del seminograma, la fragmentación de simple y doble cadena y la longitud telomérica del ADN espermático. Grupo 2: 20 pacientes con varicocele subclínico, en los cuales se ha analizado antes y 3 meses después del tratamiento antioxidante oral mediante un complejo multivitamínico, los valores del seminograma y la fragmentación de ADN espermático. Resultados En comparación a donantes fértiles, el varicocele no tiene una reducción significativa de la longitud telomérica. Respecto a la microvaricocelectomía, tampoco ha demostrado cambios en dicha longitud. Sin embargo, sí se han observado cambios estadísticamente significativos en cuanto a los valores del seminograma y de la fragmentación de ADN espermático, tanto de simple como de doble cadena. En cuanto al tratamiento antioxidante en los pacientes con varicocele subclínico, ha demostrado una reducción significativa de la fragmentación del ADN espermático, mientras que en el seminograma, solamente se observaron cambios a favor del tratamiento en el número total de espermatozoides, sin que se vieran alterados el resto de valores del seminograma. Conclusiones En base a nuestros resultados, podemos afirmar que en nuestra serie no hemos encontrado un efecto del varicocele y de su tratamiento quirúrgico sobre la longitud telomérica del ADN espermático. Sí que hemos confirmado la mejoría en las cifras de fragmentación del ADN espermático de simple y doble cadena y mejorías en el seminograma gracias al tratamiento. Por otro lado, los datos sugieren que la integridad del ADN espermático en el varicocele grado I mejora con el tratamiento antioxidante oral.
Introduction Varicocele is one of the main causes of male infertility. The surgical treatment of varicocele is indicated for patients with infertility in combination with clinical or palpable varicocele. Mycrosurgurgical varicocelectomy has demonstrated to be the best procedure for its repair. Grade I varicocele o subclinical, in which it is not recommended this surgical treatment, could be as well an infertility cause. Antioxidant treatment has demonstrated seminal quality improvements, but there is no prior data to investigate the effect on varicocele patients. Reactive oxygen species, that are highly generated in varicocele patients, can damage sperm DNA, principally due to guanine modifications. In our group, we thought that the effect of DNA damage could be more intense because the telomeres are rich in guanine, fact that could also compromise fertility. Hypothesis and Objectives In the view of the above, in one hand, we tried to analyze the effect of microvaricocelectomy to the telomere length and sperm DNA fragmentation, and its effect on seminal parameters. On the other hand, in subclinical varicocele patients, we tried to assess the effect of antioxidant treatment in seminal parameters and in sperm DNA fragmentation. Material and Methods For this purpose, 12 fertile donors and 40 infertile varicocele patients were included in the study and divided in two groups: Group 1: 20 clinical varicocele patients, in which we analyzed, before and 9 months after microvaricocelectomy surgical treatment, seminal parameters, sperm simple and double-strand DNA fragmentation and telomere length. Group 2: 20 subclinical varicocele patients, in which we analyzed, before and after 3 months of oral antioxidant treatment with a multivitamin complex, seminal parameters and sperm DNA fragmentation. Results Comparing with fertile donors, varicocele had no effect on telomere length. Results showed that microsurgical varicocelectomy had no effect on telomere length before and after treatment. However, we observed significant statistical differences in seminal parameters and sperm simple and double DNA fragmentation. Referring to antioxidant treatment in subclinical varicocele patients, we demonstrated a significant reduction on sperm DNA fragmentation, whilst we only observed changes in total sperm count in favor to the treatment, without observing changes in the rest of seminal parameters. Conclusions On the basis of the findings, we are able to affirm that in our series we have not found an effect of varicocele and its surgical treatment over sperm ADN telomere length. We have confirmed improvements in sperm DNA simple and double strand fragmentation levels due to surgical treatment and improvements on seminal parameters. Moreover, data suggest that sperm DNA integrity, in varicocele grade I patients, improve with oral antioxidant treatment.
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Svensson, Cassandra. "An eye-tracking study on synonym replacement." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-119380.

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As the amount of information increase, the need for automatic textsimplication also increase. There are some strategies for doing thatand this thesis has studied two basic synonym replacement strategies.The rst one is called word length and is about always choosinga shorter synonym if it is possible. The second one is called wordfrequency and is about always choosing a more frequent synonym if itis possible. Three dierent versions of them were tried. The rst onewas about just choosing the shortest or most frequent synonym. Thesecond was about only choosing a synonym if it was extremely shorteror more frequent. The last was about only choosing a synonym if itmet the requirements for being replaced and was on synonym level 5.Statistical analysis of the data revealed no signicant dierence. Butsmall trends showed that always choosing a more frequent synonymthat is of level 5 seemed to make the text a bit easier.
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Rojas, Thaís Cabrera Galvão. "Utilização de AFLP para estudos genéticos em Prochilodus argenteus (Pisces, Prochilodontidae)." Universidade Federal de São Carlos, 2008. https://repositorio.ufscar.br/handle/ufscar/5448.

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Universidade Federal de Sao Carlos
Genetic studies have been performed for an endemic species from São Francisco River basin, Prochilodus argenteus, which has a great importance in the artisanal and subsistence fishing in the region. The linkage mapping and the genetic variability studies were made with AFLP (Amplified Fragment Length Polymorphism) dominants markers and with 189 specimens from a F1 cross, that was also used for restocking the upstream area from Três Marias hydroelectric dam. All the analyses were carried out with 15 primer pairs combinations and the linkage map was made using the pseudo-testcross mapping strategy. Forty six heterozygous marks were found for the genitors, with mendelian segregation of 1:1. The female genitor map had 3 linkage groups and the lenght of the analysed genome was 128,45 cM, the male genitor map had the same number of linkage groups and the total length of 192,67 cM. Common markers for both genitors, with mendelian segregation ratio of 3:1, served as bridge between the maps, for the construction of an integrated map. This map had 9 linkage groups, and the total map length was 442,08 cM. Additionally, the genetic variability was assessed and an expected heterozygosity mean was of 0,32082, with a Jaccard s similarity coefficient of 0,72564 + 0,00451. These preliminary values show that the cultured sample has a higher similarity coefficient than that obtained for the wild populations. Hence, the present results suggest that genetic studies and management restocking practices should be simultaneously performed for the maintenance of the genetic patrimony of this species at the São Francisco River basin. The results also showed that AFLP marks were suitable and effective to identify linkage marks in Prochilodus argenteus and for genetic variability studies in cultivar samples.
Estudos genéticos foram realizados em uma espécie endêmica da bacia do rio São Francisco, Prochilodus argenteus, a qual possui grande importância na pesca artesanal e de subsistência da região. Os estudos do mapa de ligação e de variabilidade genética foram realizados com o uso do marcador dominante AFLP (Polimorfismo de Comprimento de Fragmentos Amplificados) e com 189 indivíduos de um cruzamento F1, utilizado também para o repovoamento do rio São Francisco, à montante da barragem de Três Marias (MG). Todas as análises foram realizadas com 15 combinações de primers. Para a construção dos mapas de ligação foi utilizada a abordagem pseudocruzamento teste. Os primers utilizados geraram 46 marcas heterozigóticas para os genitores, com segregação mendeliana de 1:1. O mapa referente ao genitor feminino apresentou 3 grupos de ligação e o comprimento do genoma analisado foi de 128,45 cM, e o mapa do genitor masculino também consistiu em 3 grupos de ligação com comprimento total de 192,67 cM. Marcadores comuns aos dois genitores, com segregação mendeliana de 3:1, foram utilizados como pontes na integração dos mapas. O mapa integrado foi formado por 9 grupos de ligação, o que correspondeu a 442,08 cM de genoma analisado. Adicionalmente, a variabilidade genética foi estudada por meio da média da heterozigosidade esperada (He), a qual foi de 0,32082 e pela análise do coeficiente de similaridade de Jaccard, que foi igual a 0,72564 + 0,00451. Estes valores, ainda que preliminares, mostraram que essa amostragem cultivada possui o coeficiente de similaridade maior quando comparado com os de populações selvagens. Desta forma, sugere-se no presente trabalho que estudos genéticos devam ser realizados juntamente com a prática de repovoamento de rios, visando conservar o patrimônio genético desta espécie na bacia do São Francisco. Os resultados mostraram também que os marcadores AFLP foram adequados e eficientes para a identificação de marcas ligadas em Prochilodus argenteus e no estudo da variabilidade genética de amostras cultivadas.
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Books on the topic "Lenght"

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Štefan, Vraštiak, and Národné centrum pre audiovizuálne umenie (Slovakia), eds. Slovenské dihometrážne filmy: 1921-1997 = The Slovak full-lenght [i.e. full-length] films : 1921-1997. [Slovak Republic]: Národné centrum pre audiovizuálne umenie, 1998.

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Donahoe, Gregg John. The effects of background depth information, line lenght differences, and gender upon vertical line length estimation and response time for a horizontal-vertical illusion. Sudbury, Ont: Laurentian University, Department of Psychology, 1998.

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Waanders, Hans. Length =: Lengte = longuer = Länge. [Amsterdam?]: Waanders, 1996.

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Harling, Paul. Length. London: Ward Lock Educational, 1985.

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Harling, Paul. Length. London: Ward Lock Educational, 1985.

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Keith, Mason. Length. London: HMSO, 1986.

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Harling, Paul. Length. London: Ward Lock Educational, 1985.

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Harling, Paul. Length. London: Ward Lock Educational, 1985.

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ill, Cockcroft David, ed. Length. New York: New Discovery, 1999.

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Length. Chicago: Childrens Press, 1995.

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Book chapters on the topic "Lenght"

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Tota, Bruno, and Maria Carmela Cerra. "Full Lenght CgA: A Multifaceted Protein in Cardiovascular Health and Disease." In Chromogranins: from Cell Biology to Physiology and Biomedicine, 99–112. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-58338-9_7.

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Chambon, R., T. Matsuchima, and D. Caillerie. "Microstructured materials: local constitutive equation with internal lenght, theoretical and numerical studies." In Continuous and Discontinuous Modelling of Cohesive-Frictional Materials, 275–91. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/3-540-44424-6_19.

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Abrikosov, A. A., and L. A. Fal’kovskiĭ. "Raman Scattering of Light by Electrons in Superconductors with a Small Correlation Lenght." In NATO ASI Series, 259–62. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-5961-6_26.

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Berman, Piotr, and Junichiro Fukuyama. "Variable Length Sequencing with Two Lengths." In Approximation Algorithms for Combinatorial Optimization, 51–59. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-44436-x_7.

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Kane, Richard, Jonathan Borwein, and Peter Borwein. "Length." In CMS Books in Mathematics, 45–56. New York, NY: Springer New York, 2001. http://dx.doi.org/10.1007/978-1-4757-3542-0_5.

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Monk, J. Donald. "Length." In Cardinal Functions on Boolean Algebras, 53–56. Basel: Birkhäuser Basel, 1990. http://dx.doi.org/10.1007/978-3-0348-6381-0_6.

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Gooch, Jan W. "Length." In Encyclopedic Dictionary of Polymers, 424. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_6869.

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Monk, J. Donald. "Length." In Cardinal Invariants on Boolean Algebras, 125–32. Basel: Birkhäuser Basel, 1996. http://dx.doi.org/10.1007/978-3-0346-0334-8_8.

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Weik, Martin H. "length." In Computer Science and Communications Dictionary, 885. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_10080.

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Davis, Andrew, Maria Goulding, and Jennifer Suggate. "Length." In Mathematical Knowledge for Primary Teachers, 194–203. 5th edition. | Abingdon, Oxon ; New York, NY : Routledge, 2017.: Routledge, 2017. http://dx.doi.org/10.4324/9781315621128-15.

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Conference papers on the topic "Lenght"

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Wu, Yufeng. "A new method to calculate the lenght of expanding hydraulic jump." In 2011 International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE). IEEE, 2011. http://dx.doi.org/10.1109/rsete.2011.5964013.

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Abrishami, Ali Akbar, and Hossein Heydari. "Improved accuracy for finite element modeling in virtual air gap lenght computation." In 2014 14th International Conference on Environment and Electrical Engineering (EEEIC). IEEE, 2014. http://dx.doi.org/10.1109/eeeic.2014.6835877.

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Dörnfeld, Claus, and J. M. Hvam. "Strong Nonlinear Optical Resonances in CdSe with Picosecond Response Time." In Optical Bistability. Washington, D.C.: Optica Publishing Group, 1988. http://dx.doi.org/10.1364/obi.1988.tha.8.

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The nonlinear optical properties of semiconductors are conveniently studied in a four-wave mixing experiment. We have performed such experiments in CdSe at low temperatures, using a synchronously pumped DCM dye-laser with a pulse lenght of 1.4 ps.
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Corrêa, Marilza, Izabel Lemos, Renata Bastos, Maria Leal, and Ivna Silveira. "Ultrasound and heterogenous catalysis assisted lenght reduction of Neisseria meningitidis serogroup C capsular polyssaccharide." In VI Seminário Anual Científico e Tecnológico. Instituto de Tecnologia em Imunobiológicos, 2018. http://dx.doi.org/10.35259/isi.sact.2018_27209.

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Pourbaba, B. "Optimal Control of a Flexible Assembly System." In ASME 1987 Design Technology Conferences. American Society of Mechanical Engineers, 1987. http://dx.doi.org/10.1115/detc1987-0043.

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Abstract The performance of a flexible assembly system consisting of a set of work stations linked by a set of transporter stations is modeled by a Markovian queueing network in steady state. Its optimal behavior is characterized such that the throughput rate from the system is maximized, while the probability of finding an arbitrary workpiece waiting inside either each work station or each transporter station in addition to an allowable lenght of time will be sufficiently close to zero.
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Ara, Thomas, Céline Bouby, Tarak Ben Zineb, Sophie Berveiller, and Etienne Patoor. "Development of a 2-D Interfacial Dynamic Model for Detwinning in HTSMAs." In ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/smasis2013-3089.

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This article presents the development of a 2D model for HTSMA which focus on interfaces motion in the martensitic state. We consider the topology of a 2D representative “volume” constituted of 4 martensite variants. Interfacial force is derived using Eshelby’s energy momentum tensor ans compared with a critical threshold which depends on interfacial lenght. A criterion for annihiling compatible interfaces is incorporated in this framework. The model is firtly applied to the description of detwinning mechanism in a grain. First results are presented.
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Takahashi, M., H. Sukeda, S. Okamine, and Y. Suzuki. "Observation and simulation of 0.3/spl mu/m lenght domain on a high speed rotating magneto-optical disk." In International Conference on Magnetics. IEEE, 1990. http://dx.doi.org/10.1109/intmag.1990.734467.

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Кудабаева, Марина Станиславовна, Андрей Евгеньевич Акулов, Анна Олеговна Пищелко, Михаил Васильевич Светлик, and Марина Юрьевна Ходанович. "SUTURE SIZE OPTIMIZATION IN THE MODEL OF FOCAL ISCHEMIA IN RATS." In Высокие технологии и инновации в науке: сборник избранных статей Международной научной конференции (Санкт-Петербург, Сентябрь 2020). Crossref, 2020. http://dx.doi.org/10.37539/vt187.2020.38.57.004.

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На модели окклюзии срединой церебральной артерии (MCAO) у крыс исследовано влияние параметров монофиламента, используемого для проведения операции, на объем ишемического поражения мозга. Установлена оптимальная длина наконечника филамента, обеспечивающая такой объем ишемического поражения, который позволяет обеспечить хорошую выживаемость животных в сочетании с другими инвазивными процедурами в хроническом эксперименте. In middle cerebral artery occlusion model (MCAO) in rats surgical suture characteristics were analyzed as parameters that can effect on ischemic lesion size. Optimal suture lenght was assigned for inducing ischemic lesion size that facilitates animal survival in long-term experiment, if MCAO and other invasive procedures are combined.
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Jovovic, Mirjana, Verica Prodanovic, Aleksandra Govedarica-Lucic, and Zoranka Malesevic. "EFFECT OF APPLAYING OF HUMIC ACID ON SEEDLING GROWTH OF TOMATO." In XXVII savetovanje o biotehnologiji. University of Kragujevac, Faculty of Agronomy, 2022. http://dx.doi.org/10.46793/sbt27.039j.

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This study was undertaken to determine the effects of humic acid on the growth seedling of two tomato cultivars CeylandoF1 and RallyF1, under greenhouse conditions. Treatment with „Humistar“ was started in the two-leaf stage of the plant. One level of humic acid of 20 ml l-1 was applied to the seedling growing media and each seedling of the species was treated every ten days until transplanting directly into the soil in greenhouse.The higest growth rate: leaf (weight), stem (diameter and weight) and root (weight and lenght) growth were optained in cultivar RallyF1 as compared to the control and leaf, stem and root weight compared to Ceylando F1 cultivar.General, the results showed that humic acid influenced better root development in both examined tomato cultivars.
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Brzozowska, Jolanta. "Identification of input signals in the process of estimating the lenght of the assembly cycle of complex products using Artificial Neural Networks." In 2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: ENVIRONMENT – PLANT – ANIMAL – PRODUCT. Publishing House of The University of Life Sciences in Lublin, 2023. http://dx.doi.org/10.24326/icdsupl2.t006.

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Reports on the topic "Lenght"

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Denys, Waele, and Lefevre. L52239 Input to Code Revision for Interaction of Girth Weld Defects under Plastic Collapse Conditions. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), March 2005. http://dx.doi.org/10.55274/r0011348.

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A pipeline girth weld may contain one single or multiple defects. If discrete multiple notches occur, current codes define by applying proximity rules the defect dimensions to be used in an ECA. The defect interaction rules contained in pipeline specific standards are based on linear elastic fracture mechanics with conservative approximations. Similar solutions for failure by plastic collapse are non-existent. In this study, using experimental data of wide plate tests, interaction criteria for ductile girth welds containing multiple coplanar surface breaking defects are proposed. Based on a simple plastic collapse assessment, defect length limits ensuring the onset of remote yielding in the pipe bodies are calculated. A two-tier assessment procedure, based on a comparison of the sum of the individual defect lengths with these characteristic limits, is proposed. If the total defect length is smaller than the characteristic defect length limit interaction will not occur. The defect length limit ensuring remote yielding in the case of multiple defects is dependent on the spacing between defects. The defect length limits also incorporate the effect of yield-to-tensile ratio. The performance behaviour of wide plates with coplanar surface-breaking defects is compared with existing and proposed interaction criteria. The assessment shows that the proposed defect interaction procedure is less conservative than the rules currently embodied in pipeline specific standards.
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Lee, S. Y. Insertion Quadrupole Length Requirement. Office of Scientific and Technical Information (OSTI), June 1986. http://dx.doi.org/10.2172/1119050.

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Goldman, Terrance J. Fundamental length from algebra. Office of Scientific and Technical Information (OSTI), October 2019. http://dx.doi.org/10.2172/1571586.

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Young, Stanley, and Dennis So Ting Fong. Arterial Trip Length Characteristics. Purdue University, December 2017. http://dx.doi.org/10.5703/1288284316560.

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Porterfield, Krista Beth. Bond, Transfer Length, and Development Length of Prestressing Strand in Self-Consolidating Concrete. Precast/Prestressed Concrete Institute, 2012. http://dx.doi.org/10.15554/pci.rr.mat-002.

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Gollier, Christian, and Richard Zeckhauser. Horizon Length and Portfolio Risk. Cambridge, MA: National Bureau of Economic Research, October 1997. http://dx.doi.org/10.3386/t0216.

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7

Ahmad, Mahmoud. CEBAF Upgrade Bunch Length Measurements. Office of Scientific and Technical Information (OSTI), May 2016. http://dx.doi.org/10.2172/1346941.

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8

Young, Stanley, and Dennis So Ting Fong. Arterial Trip Length Characteristics Software. Purdue University, December 2017. http://dx.doi.org/10.5703/1288284316569.

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9

Dal Bó, Ernesto, and Martín Rossi. Term Length and Political Performance. Cambridge, MA: National Bureau of Economic Research, November 2008. http://dx.doi.org/10.3386/w14511.

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10

Li, T., C. Liu, and Y. Cui. DHCPv6 Prefix-Length Hint Issues. RFC Editor, May 2017. http://dx.doi.org/10.17487/rfc8168.

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You might also be interested in the extended bibliographies on the topic 'Lenght' for particular source types:
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