Journal articles: 'Corresponding of two lines'

1

Wilcox, Rand R. "Comparing robust regression lines corresponding to two independent groups." Communications in Statistics - Theory and Methods 21, no. 5 (1992): 1255–66. http://dx.doi.org/10.1080/03610929208830844.

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McVetty, P. B. E., and R. Pinnisch. "Comparison of the effect of nap and pol cytoplasms on the performance of three summer oilseed rape cultivar-derived isoline pairs." Canadian Journal of Plant Science 74, no. 4 (1994): 729–31. http://dx.doi.org/10.4141/cjps94-130.

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The pol cytoplasm is a male sterile cytoplasm with potential for use in hybrid summer rape (Brassica napus L.) seed production while the nap cytoplasm is the one most commonly encountered in summer rape cultivars. The objective of this study was to compare the performance of three cultivar-derived summer rape isoline pairs in the nap and pol cytoplasms to determine the relative effect on performance of these two cytoplasms. One nap line yielded significantly more than its corresponding pol line, three nap lines had significantly higher oil content than their corresponding pol lines, two nap lines had significantly higher protein content than their corresponding pol lines, and two nap lines produced significantly more seed energy than their corresponding pol lines. There are pleiotropic negative effects (biological costs) associated with the pol cytoplasm. These negative effects are affected by nuclear genotype and appear to be related to the depth of male sterility expressed in the derived pol A-line. Key words: Cytoplasm cost, Brassica napus L., cytoplasmic male sterility

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Guo, Kai, Rui Cao, Ye Tian, Binyuan Ji, Xuefeng Dong, and Xuyang Li. "Pose and Focal Length Estimation Using Two Vanishing Points with Known Camera Position." Sensors 23, no. 7 (2023): 3694. http://dx.doi.org/10.3390/s23073694.

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This paper proposes a new pose and focal length estimation method using two vanishing points and a known camera position. A vanishing point can determine the unit direction vector of the corresponding parallel lines in the camera frame, and as input, the unit direction vector of the corresponding parallel lines in the world frame is also known. Hence, the two units of direction vectors in camera and world frames, respectively, can be transformed into each other only through the rotation matrix that contains all the information of the camera pose. Then, two transformations can be obtained because there are two vanishing points. The two transformations of the unit direction vectors can be regarded as transformations of 3D points whose coordinates are the values of the corresponding unit direction vectors. The key point in this paper is that our problem with vanishing points is converted to rigid body transformation with 3D–3D point correspondences, which is the usual form in the PnP (perspective-n-point) problem. Additionally, this point simplifies our problem of pose estimation. In addition, in the camera frame, the camera position and two vanishing points can form two lines, respectively, and the angle between the two lines is equal to the angle between the corresponding two sets of parallel lines in the world frame. When using this geometric constraint, the focal length can be estimated quickly. The solutions of pose and focal length are both unique. The experiments show that our proposed method has good performances in numerical stability, noise sensitivity and computational speed with synthetic data and real scenarios and also has strong robustness to camera position noise.

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Surutka, Jovan, and Dragutin Velickovic. "Symmetrical linear antennas driven by two-wire lines." Serbian Journal of Electrical Engineering 1, no. 1 (2003): 27–60. http://dx.doi.org/10.2298/sjee0301027s.

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A new theoretical approach to the problem of the symmetrical linear antenna driven by a two-wire line is presented. Then symmetrical linear antenna and the feeder line are treated as a unique boundary-value problem leading to a system of two simultaneous integral equations containing antenna and line currents as unknown sub-integral functions. The integral equations are approximately solved by the so-called point-matching method. Due to the mutual coupling between the antenna and the line, a new conveniently defined apparent driving-point admittance is to be introduced. The method is applied on several types of linear antennas: Centre driven symmetrical dipole antenna, Centre-driven V-antenna, Cage antenna, H-antenna and System of two parallel non-staggered dipoles antennas, positioned in the air over semi-conducting ground. Then theoretical results for admittances were compared with the experiments and remarkably good overall agreement has been found. On the contrary, a comparison with the corresponding theoretical results obtained with the idealized delta-function generator revealed remarkable discrepancies.

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Pellegrini, Rita, Paola Bazzini, Emanuela Tosi та ін. "Production and Characterization of two Monoclonal Antibodies Directed against the Integrin β1 Chain". Tumori Journal 78, № 1 (1992): 1–4. http://dx.doi.org/10.1177/030089169207800101.

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The production and characterization of two new monoclonal antibodies (MAbs), designated MAR4 and MAR5, raised against the partially purified α5β1 integrin, are described. The reactivity of these 2 MAbs on tumor cell lines indicated that they reacted on all the cells expressing the β1 subunit independently of the α5 expression. Both MAbs were found to immunoprecipitate on 3 cell lines, a protein of 120 KD corresponding to the molecular weight be the β1 chain, in addition to proteins of other MW corresponding to the α subunits differentially expressed by these cells. The cross-competition experiments showed that MAR4 and MAR5 recognize the same epitope. These 2 MAbs seem to be useful reagents for the characterization of the VLA expression in tumor cells.

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Islam, M. M., M. E. Hoque, S. M. H. A. Rabbi, and M. S. Ali. "DNA Fingerprinting and Diversity Analysis of BRRI Hybrid Varieties and their Corresponding Parents." Plant Tissue Culture and Biotechnology 21, no. 2 (2011): 189–98. http://dx.doi.org/10.3329/ptcb.v21i2.10242.

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DNA fingerprinting and genetic diversity of four Bangladesh Rice Research Institute (BRRI) hybrid varieties and their parental lines were carried out. A total of 73 microsatellite markers were tested for screening the genotypes. Among the 73 amplified products, 37% had polymorphic bands showing 81 alleles. The number of alleles per locus ranged from two (RM10) to eight (RM327), where average allele number was 4.333. The Polymorphism Information Contents (PIC) lied between 0.337 (RM10) and 0.852 (RM327). RM327 was the most robust marker providing the highest PIC value (0.852). Pair-wise genetic dissimilarity coefficient interaction showed that BRRI hybrids two was the most genetically distant from each other whereas BRRI hybrids one, three, four and their respective parents were very close. Cluster analysis based on Dices similarity coefficient UPGMA system grouped BRRI hybrid and their parental lines into four major clusters at 0.41 cut off similarity coefficient. Four BRRI hybrid varieties grouped into four distinct clusters along with their component lines indicating their genetic closeness. Key words: Hybrid rice, Diversity analysis, Microsatellite markers, DNA fingerprinting D. O. I. 10.3329/ptcb.v21i2.10242 Plant Tissue Cult. & Biotech. 21(2): 189-198, 2011 (December)

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Zeller, Friedrich J., Mari-Carmen Cermeño, and Bernd Friebe. "Cytological identification of telotrisomic and double ditelosomic lines in Secale cereale cv. Heines Hellkorn by means of Giemsa C-banding patterns and crosses with wheat–rye addition lines." Genome 29, no. 1 (1987): 58–62. http://dx.doi.org/10.1139/g87-009.

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Seven telotrisomic lines (1RS, 1RL, 2RS, 2RL, 3RS acro, 5RS, and 6RS), two double monotelosomic, and two double ditelosomic lines of Secale cereale cv. Heines Hellkorn were analyzed by means of Giemsa C-banding techniques. In crosses with several wheat–rye chromosome addition lines, the telosomic chromosomes in double ditelosomic lines 1/23 and 3/23 were found to be homologous to chromosomes 1R and 2RL of cv. Imperial rye. The C-banding pattern observed for the telosomes in these lines was similar to that detected in the 1R and 2R telosomics of the corresponding telotrisomic lines. Key words: Secale cereale, telotrisomics, double ditelosomics, C-banding pattern.

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Xiao, Zhiliang, Congcong Kong, Fengqing Han, et al. "Two User-Friendly Molecular Markers Developed for the Identification of Hybrid Lethality Genes in Brassica oleracea." Agronomy 11, no. 5 (2021): 982. http://dx.doi.org/10.3390/agronomy11050982.

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Cabbage (Brassica oleracea) is an important vegetable crop that is cultivated worldwide. Previously, we reported the identification of two dominant complementary hybrid lethality (HL) genes in cabbage that could result in the death of hybrids. To avoid such losses in the breeding process, we attempted to develop molecular markers to identify HL lines. Among 54 previous mapping markers closely linked to BoHL1 or BoHL2, only six markers for BoHL2 were available in eight cabbage lines (two BoHL1 lines; three BoHL2 lines; three lines without BoHL); however, they were neither universal nor user-friendly in more inbred lines. To develop more accurate markers, these cabbage lines were resequenced at an ~20× depth to obtain more nucleotide variations in the mapping regions. Then, an InDel in BoHL1 and a single-nucleotide polymorphism (SNP) in BoHL2 were identified, and the corresponding InDel marker MBoHL1 and the competitive allele-specific PCR (KASP) marker KBoHL2 were developed and showed 100% accuracy in eight inbred lines. Moreover, we identified 138 cabbage lines using the two markers, among which one inbred line carried BoHL1 and 11 inbred lines carried BoHL2. All of the lethal line genotypes obtained with the two markers matched the phenotype. Two markers were highly reliable for the rapid identification of HL genes in cabbage.

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Chan, V., K. E. Elliott, T. S. Herman, and B. A. Teicher. "Alphoid DNA nucleotide sequences from two human cell lines and the corresponding cis-diamminedichloroplatinum(II)-resistant sublines." Cancer Letters 43, no. 3 (1988): 219–25. http://dx.doi.org/10.1016/0304-3835(88)90174-7.

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Liu, Weixiao, Zhe Zhang, Xuri Liu, and Wujun Jin. "iTRAQ-based quantitative proteomic analysis of two transgenic soybean lines and the corresponding non-genetically modified isogenic variety." Journal of Biochemistry 167, no. 1 (2019): 67–78. http://dx.doi.org/10.1093/jb/mvz081.

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Abstract To investigate the unintended effects of genetically modified (GM) crops, an isobaric tags for relative and absolute quantitation (iTRAQ)-based comparative proteomic analysis was performed with seed cotyledons of two GM soybean lines, MON87705 and MON87701×MON89788, and the corresponding non-transgenic isogenic variety A3525. Thirty-five differentially abundant proteins (DAPs) were identified in MON87705/A3525, 27 of which were upregulated and 8 downregulated. Thirty-eight DAPs were identified from the MON87701×MON89788/A3525 sample, including 29 upregulated proteins and 9 downregulated proteins. Pathway analysis showed that most of these DAPs participate in protein processing in endoplasmic reticulum and in metabolic pathways. Protein–protein interaction analysis of these DAPs demonstrated that the main interacting proteins are associated with post-translational modification, protein turnover, chaperones and signal transduction mechanisms. Nevertheless, these DAPs were not identified as new unintended toxins or allergens and only showed changes in abundance. All these results suggest that the seed cotyledon proteomic profiles of the two GM soybean lines studied were not dramatically altered compared with that of their natural isogenic control.

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Shopova, Elena, Bistra Mihailova, Marina Drumeva-Yoncheva, Dessislava Todorova, Iskren Sergiev, and Yonko Yonchev. "Comparative Study of Drought Tolerance of Virginia Tobacco Genotypes Differing in Origin and Their Corresponding Hybrid Progenies." Proceedings of the Bulgarian Academy of Sciences 75, no. 10 (2022): 1540–48. http://dx.doi.org/10.7546/crabs.2022.10.18.

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Soil drought is a serious problem in agriculture leading to considerable loss of production. Tobacco is relatively sensitive to water scarcity, and the selection of resistant drought varieties is of particular importance. In this study we compared the tolerance to three different levels of drought of six genotypes of Virginia tobacco – two varieties were introduced in Bulgaria, two lines are of Bulgarian origin, and two are their hybrids. Biochemical markers of stress (malondialdehyde, hydrogen peroxide and free proline) were determined. The results showed that the Polish genotype V 385 and one of the Bulgarian lines L 0842 were moderately sensitive to drought, while the parental genotypes – the American variety Coker 254 and the Bulgarian line L 0543, as well as the two newly created Bulgarian hybrids H 27 and H 135 were relatively resistant to drought. These data can serve as a basis for selection and development of new genotypes with increased resistance to drought.

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Akohoue, Félicien, David Sewordor Gaikpa, Bettina Kessel, Thomas Presterl, and Thomas Miedaner. "Variance Components and Correlations between Doubled Haploid Lines from Two European Flint Landraces and Their Corresponding Testcrosses for Gibberella Ear Rot Resistance, Silking Time, and Plant Height in Maize." Agronomy 11, no. 6 (2021): 1039. http://dx.doi.org/10.3390/agronomy11061039.

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Predicting the resistance of hybrids from lines is a relevant approach for accelerating the improvement of disease resistance in hybrid breeding. In this study, genetic variation and covariation among 76 DH lines from two flint landraces, Kemater (KE) and Petkuser (PE), and their corresponding testcrosses (TC) were estimated for the first time for this material for Gibberella ear rot (GER), days to silking (DS), and plant height (PHT). Lines and TC were evaluated in four and two environments, respectively, under artificial infection with GER. TC were, on average, 42% less GER infected than their lines. TC matured 3–4 days earlier and were about 110 cm taller than the lines. GER resistance was 10% higher in KE lines and TC than PE lines and TC. Significant (p < 0.001) genotypic and genotype-by-environment interaction variances were found for all traits. Genotypic variances were generally smaller among TC than lines. Broad-sense heritability estimates were moderate to high for GER severity (0.56–0.82) and high for DS (0.78–0.88) and PHT (0.86–0.94) with higher values always observed in lines. Significant, moderate correlations between TC and line per se performance were found for GER resistance in both KE and PE (r = 0.37 and 0.55, respectively). For the two agronomic traits, correlations were higher (r = 0.59–0.76) than for GER resistance. Genomic prediction accuracies were moderate to high for GER resistance (r = 0.49–0.63) and generally higher for DS and PHT. In conclusion, a pre-selection of DH lines for GER resistance should be feasible; however, TC should be additionally tested on a later selection stage to aim for GER-resistant hybrid cultivars.

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Ding, Bingli, Mengyu Hao, Desheng Mei, et al. "Transcriptome and Hormone Comparison of Three Cytoplasmic Male Sterile Systems in Brassica napus." International Journal of Molecular Sciences 19, no. 12 (2018): 4022. http://dx.doi.org/10.3390/ijms19124022.

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The interaction between plant mitochondria and the nucleus markedly influences stress responses and morphological features, including growth and development. An important example of this interaction is cytoplasmic male sterility (CMS), which results in plants producing non-functional pollen. In current research work, we compared the phenotypic differences in floral buds of different Brassica napus CMS (Polima, Ogura, Nsa) lines with their corresponding maintainer lines. By comparing anther developmental stages between CMS and maintainer lines, we identified that in the Nsa CMS line abnormality occurred at the tetrad stage of pollen development. Phytohormone assays demonstrated that IAA content decreased in sterile lines as compared to maintainer lines, while the total hormone content was increased two-fold in the S2 stage compared with the S1 stage. ABA content was higher in the S1 stage and exhibited a two-fold decreasing trend in S2 stage. Sterile lines however, had increased ABA content at both stages compared with the corresponding maintainer lines. Through transcriptome sequencing, we compared differentially expressed unigenes in sterile and maintainer lines at both (S1 and S2) developmental stages. We also explored the co-expressed genes of the three sterile lines in the two stages and classified these genes by gene function. By analyzing transcriptome data and validating by RT-PCR, it was shown that some transcription factors (TFs) and hormone-related genes were weakly or not expressed in the sterile lines. This research work provides preliminary identification of the pollen abortion stage in Nsa CMS line. Our focus on genes specifically expressed in sterile lines may be useful to understand the regulation of CMS.

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Dal Poz, A. P., and V. J. M. Fernandes. "EXTRACTION OF ROOF LINES FROM HIGH-RESOLUTION IMAGES BY A GROUPING METHOD." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B3 (June 10, 2016): 853–57. http://dx.doi.org/10.5194/isprs-archives-xli-b3-853-2016.

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This paper proposes a method for extracting groups of straight lines that represent roof boundaries and roof ridgelines from highresolution aerial images using corresponding Airborne Laser Scanner (ALS) roof polyhedrons as initial approximations. The proposed method is based on two main steps. First, straight lines that are candidates to represent roof ridgelines and roof boundaries of a building are extracted from the aerial image. Second, a group of straight lines that represent roof boundaries and roof ridgelines of a selected building is obtained through the optimization of a Markov Random Field (MRF)-based energy function using the genetic algorithm optimization method. The formulation of this energy function considers several attributes, such as the proximity of the extracted straight lines to the corresponding projected ALS-derived roof polyhedron and the rectangularity (extracted straight lines that intersect at nearly 90&deg;). Experimental results are presented and discussed in this paper.

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Dal Poz, A. P., and V. J. M. Fernandes. "EXTRACTION OF ROOF LINES FROM HIGH-RESOLUTION IMAGES BY A GROUPING METHOD." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B3 (June 10, 2016): 853–57. http://dx.doi.org/10.5194/isprsarchives-xli-b3-853-2016.

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This paper proposes a method for extracting groups of straight lines that represent roof boundaries and roof ridgelines from highresolution aerial images using corresponding Airborne Laser Scanner (ALS) roof polyhedrons as initial approximations. The proposed method is based on two main steps. First, straight lines that are candidates to represent roof ridgelines and roof boundaries of a building are extracted from the aerial image. Second, a group of straight lines that represent roof boundaries and roof ridgelines of a selected building is obtained through the optimization of a Markov Random Field (MRF)-based energy function using the genetic algorithm optimization method. The formulation of this energy function considers several attributes, such as the proximity of the extracted straight lines to the corresponding projected ALS-derived roof polyhedron and the rectangularity (extracted straight lines that intersect at nearly 90&deg;). Experimental results are presented and discussed in this paper.

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Lewis, L. J., and D. L. Woods. "Field performance of self-compatible and an equal proportion mixture of self-compatible and self-incompatible summer rape lines at two Alberta locations in 1989." Canadian Journal of Plant Science 73, no. 3 (1993): 829–33. http://dx.doi.org/10.4141/cjps93-106.

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Two sporophytic self-incompatibility (SI) alleles were introgressed from Brassica napus rapid cycling material into five self-compatible (SC) lines of oilseed summer rape. The field performance of segregating BC2F2 lines (SC:SI 1:1) was compared with the corresponding SC lines using a split-plot field design. Plants of the SC-SI mixed stands produced, in comparison to plants of the SC plots, more siliques on the main raceme, but the siliques contained fewer seed suggesting that SI plants might not have been fully fertilised. Key words: Rape (summer), sporophytic self-incompatibility

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Nirode, Wayne. "Lines as “Foci” for Conic Sections." Mathematics Teacher 112, no. 4 (2019): 312–16. http://dx.doi.org/10.5951/mathteacher.112.4.0312.

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One of my goals, as a geometry teacher, is for my students to develop a deep and flexible understanding of the written definition of a geometric object and the corresponding prototypical diagram. Providing students with opportunities to explore analogous problems is an ideal way to help foster this understanding. Two ways to do this is either to change the surface from a plane to a sphere or change the metric from Pythagorean distance to taxicab distance (where distance is defined as the sum of the horizontal and vertical components between two points). Using a different surface or metric can have dramatic effects on the appearance of geometric objects. For example, in spherical geometry, triangles that are impossible in plane geometry (such as triangles with three right or three obtuse angles) are now possible. In taxicab geometry, a circle now looks like a Euclidean square that has been rotated 45 degrees.

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Li, Wei, Yue Guan, Liguo Chen, and Lining Sun. "Millimeter-Wave Radar and Machine Vision-Based Lane Recognition." International Journal of Pattern Recognition and Artificial Intelligence 32, no. 05 (2018): 1850015. http://dx.doi.org/10.1142/s0218001418500155.

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Camera can sensor the environment on the lane by extracting the lane lines, but such detection is limited to a short distance with effect of illumination and other factors; radar can detect objects a long distance away but cannot detect the lane conditions. This paper combined machine vision with millimeter-wave radar and extracted the nearby distinct lane line through images; at the same time, the radar obtained the motion trajectory information of distant vehicles, then the least-square method was used to make curve fitting on those motion trajectory information in order to reconstruct the lane line information. Finally, in the stage of fusing two segments of lane lines, the goodness of fit was applied to complete the matching of corresponding lane lines. While, for areas between two segments of lane lines that neither camera or radar can detect, we established a lane model, utilized probabilistic neural network to select the corresponding lane model for matching, and then used approximate mathematics expression according to the selected lane model, thus obtaining the final front road information of current vehicle.

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Mao, Xiaopo, Qiuju Cui, Jianfeng Ye, et al. "Simulation calculation of guano fault hazardous areas in overhead transmission lines in power systems." Journal of Physics: Conference Series 2662, no. 1 (2023): 012013. http://dx.doi.org/10.1088/1742-6596/2662/1/012013.

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Abstract Guano flashover is the most typical type of bird damage fault, which can be divided into two types based on the formation mechanism: guano spatial flashover and guano pollution flashover. These two types of flashover are harmful to almost all levels of transmission lines. For 110 kV level transmission lines, guano flashover faults account for over 90% of all bird damage faults. Among them, guano space flashover has caused tripping faults in multiple foreign ultra-high voltage lines. From this, it can be seen that finding the mechanism of bird manure fault formation and formulating corresponding preventive measures are of great significance for the safe operation of transmission lines.

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NAGEL, UWE, ROBERTO NOTARI, and MARIA LUISA SPREAFICO. "THE HILBERT SCHEME OF DEGREE TWO CURVES AND CERTAIN ROPES." International Journal of Mathematics 17, no. 07 (2006): 835–67. http://dx.doi.org/10.1142/s0129167x06003692.

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We study families of ropes of any codimension that are supported on lines. We construct suitable smooth parameter spaces and conclude that all ropes of fixed degree and genus lie in the same component of the corresponding Hilbert scheme. We show that this component is generically smooth if the genus is small enough unless the characteristic of the ground field is two and the curves under consideration have degree two. In this case the component is non-reduced.

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Yu, Tao, Jianguo Zhang, Jingsheng Cao, et al. "Metabolic Insight into Cold Stress Response in Two Contrasting Maize Lines." Life 12, no. 2 (2022): 282. http://dx.doi.org/10.3390/life12020282.

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Maize (Zea mays L.) is sensitive to a minor decrease in temperature at early growth stages, resulting in deteriorated growth at later stages. Although there are significant variations in maize germplasm in response to cold stress, the metabolic responses as stress tolerance mechanisms are largely unknown. Therefore, this study aimed at providing insight into the metabolic responses under cold stress at the early growth stages of maize. Two inbred lines, tolerant (B144) and susceptible (Q319), were subjected to cold stress at the seedling stage, and their corresponding metabolic profiles were explored. The study identified differentially accumulated metabolites in both cultivars in response to induced cold stress with nine core conserved cold-responsive metabolites. Guanosine 3′,5′-cyclic monophosphate was detected as a potential biomarker metabolite to differentiate cold tolerant and sensitive maize genotypes. Furthermore, Quercetin-3-O-(2″′-p-coumaroyl)sophoroside-7-O-glucoside, Phloretin, Phloretin-2′-O-glucoside, Naringenin-7-O-Rutinoside, L-Lysine, L-phenylalanine, L-Glutamine, Sinapyl alcohol, and Feruloyltartaric acid were regulated explicitly in B144 and could be important cold-tolerance metabolites. These results increase our understanding of cold-mediated metabolic responses in maize that can be further utilized to enhance cold tolerance in this significant crop.

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de Boer, C. R., G. Stellmacher, and E. Wiehr. "Prominence Emission Lines Observed With SUMER and Two Ground-based Telescopes." International Astronomical Union Colloquium 167 (1998): 196–200. http://dx.doi.org/10.1017/s0252921100047576.

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AbstractTwo sets of H, He, and Ca+ emission lines were observed in a quiescent prominence simultaneously with the VTT and the Gregory telescope on Tenerife. At the same time, SUMER took two scans of low-ionized EUV emission lines.The emission ratios of Ca+–to–Balmer lines from ground vary little in the prominence, indicating a largely constant gas-pressure. In contrast, the ratio of He–to–Balmer from the ground shows the (known) increase toward the prominence borders, indicating higher temperature there. Similarly, the two-dimensional distributions of the ratios S IV/N II and C III/He I show pronounced bright prominence rims.The reduced He 537Å and He 584Å line widths are 2.6 and 3.6 times larger, respectively, than those of He D3 and He 3888Å. Explaining this by the optical thickness yields τ0 = 104 and τ0 = 2 · 105 for the two EUV lines. The total He 584 emission amounts to 13 watt/m2 ster in the main prominence body where the D3 line yields 4 watt/m2 ster; existing models, however, predict a factor 0.18.The widths of simultaneously observed optical lines with different atomic weights yield thermal and non-thermal broadening parameters of Tkin ≈ 8000 K and 2.5 < ξ < 6.5 km/s. The EUV lines, however, show line widths which correspond to much higher temperatures and non-thermal velocities. Assuming for each ion the corresponding ionization temperature, the line widths require non-thermal velocities of 15–40 km/s which is similar to values for the quiet corona.

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Motiyenko, R. A., I. A. Armieieva, L. Margulès, E. A. Alekseev, and J. C. Guillemin. "Rotational spectroscopy of malononitrile and its corresponding monoisocyanide isomer, isocyanoacetonitrile." Astronomy & Astrophysics 623 (March 2019): A162. http://dx.doi.org/10.1051/0004-6361/201834587.

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Context. Nitriles constitute almost 20% of the molecules observed in the interstellar medium, whereas only one dinitrile and one isocyanonitrile compound have been detected up to now. The lack of detections of such compounds may be partially explained by the lack of accurate spectroscopic data on their rotational spectra.Aims. Two small seven-atom dinitriles, malononitrile NCCH2CN and isocyanoacetonitrile NCCH2NC, were chosen as target species for this study. For malononitrile the goal of the study is to systematize all the previous measurements, and to extend the measurements to the sub-millimeter wavelength range. The spectrum of isocyanoacetonitrile has not been studied before.Methods. The rotational spectra of the two molecules were measured in the frequency range 150–660 GHz using the Lille fast-scan spectrometer. The spectroscopic study was supported by high-level theoretical calculations on the structure of these molecules and their harmonic force field.Results. Accurate frequency predictions for malononitrile and isocyanoacetonitrile were calculated on the basis of the analysis of their rotational spectra. The influence of the spin statistics on the intensities of the lines of malononitrile was taken into account. The provided line lists and sets of molecular parameters meet the needs of astrophysical searches for the two molecules.

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Dreiseitl, A. "Resistance To Powdery Mildew In Selected Czech Winter Barley Breeding Lines." Czech Journal of Genetics and Plant Breeding 41, No. 2 (2011): 45–50. http://dx.doi.org/10.17221/6076-cjgpb.

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Powdery mildew resistances in Czech winter barley breeding lines were postulated on the basis of their reaction types to 32 pathotypes of the pathogen with different combinations of virulence genes. The results from testing 38 lines represent a substantial part of found variability in the examined trait with 13 found resistances. The resistances typical of winter barley cultivars dominated in six-row lines whereas the resistances typical of spring barley cultivars were more frequent in two-row lines. None of these resistances was effective enough to all used pathotypes. Desired effectiveness is present neither in the lines with a combination of corresponding resistances nor in the cases when their resistance is controlled by more (up to six) postulated genes. Resistances &ldquo;Ch&rdquo; (detected in the line CH 669) and &ldquo;Lu&rdquo; (detected in the line LU 1258/A/02) are novel, the former without any practical importance. A need of breeding winter barley cultivars resistant to powdery mildew is discussed since they are required for both conventional and particularly low-input farming systems.

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Bruno, Alexander Dmitrievich, and Alexander Borisovich Batkhin. "Level lines of a polynomial in the plane." Keldysh Institute Preprints, no. 57 (2021): 1–24. http://dx.doi.org/10.20948/prepr-2021-57.

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We propose a method for computing the position of all level lines of a real polynomial in the real plane. To do this, it is necessary to compute its critical points and critical curves, and then to compute critical values of the polynomial (there are finite number of them). Now finite number of critical levels and one representative of noncritical level corresponding to a value between two neighboring critical ones enough to compute. We propose a scheme for computing level lines based on polynomial computer algebra algorithms: Gröbner bases, primary ideal decomposition. Software for these computations are pointed out. Nontrivial examples are considered.

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Denis, Marc G., Corinne Chadeneau, Patrick Lustenberger, Bernard Le Mevel, and Khaled Meflah. "Isolation of cDNA clones corresponding to genes differentially expressed in two colon-carcinoma cell lines differing by their tumorigenicity." International Journal of Cancer 50, no. 6 (1992): 930–36. http://dx.doi.org/10.1002/ijc.2910500619.

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Nikitakis, Ioannis S., and Argyris G. Toubekis. "Lactate Threshold Evaluation in Swimmers: The Importance of Age and Method." International Journal of Sports Medicine 42, no. 09 (2021): 818–24. http://dx.doi.org/10.1055/a-1342-7446.

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AbstractThe purpose of the study was to define the most appropriate method for the calculation of the speed corresponding to lactate threshold (sLT) in male swimmers. Eight boys and eight adolescents (age: 11.4±0.5 and 15.8±0.8 years) performed 7×200-m swimming front-crawl and after drawing the speed vs. lactate curve, the sLTs were calculated using five methods: i) the intersection of two linear regression lines, ii) visual inspection, iii) D-max, iv) D-max modified, v) intersection of combined linear and exponential regression lines. All methods were compared to the speed corresponding to maximal lactate steady state (sMLSS). Two to four 30-min efforts of continuous swimming at imposed constant pace were used for sMLSS calculation. In both groups, speed of D-max modified was similar to sMLSS (children, 1.061±0.073 vs. sMLSS: 1.071±0.072 m·s−1; p>0.05; effect size: ES=0.15, small; adolescents, 1.318±0.060 vs. sMLSS: 1.284±0.047 m·s−1; p>0.05; ES=0.64, medium). In adolescents, sLT calculated by intersection of two regression lines and by visual inspection presented medium ES (0.22–0.24) and were no different to sMLSS (1.296 ± 0.051, 1.295±0.053 m·s−1, p>0.05). When testing children, D-max modified is the most appropriate method to estimate sMLSS. The intersection of the linear regression lines and visual inspection are suggested for sMLSS determination in adolescents.

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Tyankova, N. D., N. Zagorska, V. Chardakov, A. Dryanova, and B. Dimitrov. "Chromosomal effects on In Vitro morphogenesis in Wheat intervarietal Substitution Lines." Czech Journal of Genetics and Plant Breeding 42, No. 1 (2011): 15–19. http://dx.doi.org/10.17221/3658-cjgpb.

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The effect of individual chromosomes on in vitro morphogenic ability of immature embryos was studied using a Chinese Spring/Timstein substitution series. For this purpose 20 wheat lines of Chinese Spring with consequently substituted chromosome pairs from the cultivar Timstein together with the two parental cultivars were investigated. The regeneration ability of the studied lines was quantified by two parameters: frequency of regenerative calli and coefficient of propagation. The influence of the 5A, 1B and 4D chromosomes on in vitro morphogenesis was determined and the effect of 2A, 3A, 3B, 4B, 6B and 1D chromosomes, reported by other authors, was confirmed. The data indicated that the intervarietal substitutions of certain chromosomes caused significant variation in the number of morphogenic calli and recovered regenerants, in spite of the fact that the two parental cultivars were of similar morphogenic ability. This probably reflects the allele variation in a given locus on these chromosomes and/or background effect. The data suggest that the chromosome substitutions may have different compensatory effects depending on the similarity of the corresponding chromosomes and also on the possibilities of their expression in an alien genetic background. &nbsp;

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Ren, Z. L., and T. Lelley. "Chromosomal localization of genes in the R genome causing hybrid necrosis in rye and triticale." Genome 33, no. 1 (1990): 40–43. http://dx.doi.org/10.1139/g90-007.

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By using a set of primary hexaploid triticale lines monosomic for each of the seven rye chromosomes and with the help of a complete series of monosomic wheat–rye addition lines the two genes Ner1 and Ner2 were chromosomally localized in the rye genome. These two genes condition hybrid necrosis in rye through a dominant complementary interaction. Interacting with the corresponding necrosis genes in the B genome of wheat, Ne1 and Ne2, these two genes in rye also cause hybrid necrosis in triticale. The Ner1 locus was localized on the long arm of chromosome 5R and the Ner2 locus on the long arm of chromosome 7R. The results provide further evidence for a strong phylogenetic relationship of these two cereal species.Key words: hybrid necrosis, rye, triticale, chromosomal localization, monosomies, addition lines.

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30

Laure, Alexander, Angelica Rigutto, Michaela B. Kirschner, et al. "Genomic and Transcriptomic Analyses of Malignant Pleural Mesothelioma (MPM) Samples Reveal Crucial Insights for Preclinical Testing." Cancers 15, no. 10 (2023): 2813. http://dx.doi.org/10.3390/cancers15102813.

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Cell lines are extensively used to study cancer biology. However, the use of highly passaged commercial cell lines has to be questioned, as they do not closely resemble the originating tumor. To understand the reliability of preclinical models for Malignant pleural mesothelioma (MPM) studies, we have performed whole transcriptome and whole exome analyses of fresh frozen MPM tumors and compared them to cell lines generated from these tumors, as well as commercial cell lines and a preclinical MPM mouse model. Patient-derived cell lines were generated from digested fresh tumors and whole exome sequencing was performed on DNA isolated from formalin-fixed, paraffin-embedded (FFPE) tumor samples, corresponding patient-derived cell lines, and normal tissue. RNA sequencing libraries were prepared from 10 fresh frozen tumor samples, the 10 corresponding patient-derived cell lines, and 7 commercial cell lines. Our results identified alterations in tumor suppressor genes such as FBXW7, CDKN2A, CDKN2B, and MTAP, all known to drive MPM tumorigenesis. Patient-derived cell lines correlate to a high degree with their originating tumor. Gene expressions involved in multiple pathways such as EMT, apoptosis, myogenesis, and angiogenesis are upregulated in tumor samples when compared to patient-derived cell lines; however, they are downregulated in commercial cell lines compared to patient-derived cell lines, indicating significant differences between the two model systems. Our results show that the genome and transcriptome of tumors correlate to a higher degree with patient-derived cell lines rather than commercial cell lines. These results are of major relevance for the scientific community in regard to using cell lines as an appropriate model, resembling the pathway of interest to avoid misleading results for clinical applications.

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Huo, Zihe, Mariana Sá Santos, Astrid Drenckhan, et al. "Metastatic Esophageal Carcinoma Cells Exhibit Reduced Adhesion Strength and Enhanced Thermogenesis." Cells 10, no. 5 (2021): 1213. http://dx.doi.org/10.3390/cells10051213.

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Despite continuous improvements in multimodal therapeutic strategies, esophageal carcinoma maintains a high mortality rate. Metastases are a major life-limiting component; however, very little is known about why some tumors have high metastatic potential and others not. In this study, we investigated thermogenic activity and adhesion strength of primary tumor cells and corresponding metastatic cell lines derived from two patients with metastatic adenocarcinoma of the esophagus. We hypothesized that the increased metastatic potential of the metastatic cell lines correlates with higher thermogenic activity and decreased adhesion strength. Our data show that patient-derived metastatic esophageal tumor cells have a higher thermogenic profile as well as a decreased adhesion strength compared to their corresponding primary tumor cells. Using two paired esophageal carcinoma cell lines of primary tumor and lymph nodes makes the data unique. Both higher specific thermogenesis profile and decreased adhesion strength are associated with a higher metastatic potential. They are in congruence with the clinical patient presentation. Understanding these functional, biophysical properties of patient derived esophageal carcinoma cell lines will enable us to gain further insight into the mechanisms of metastatic potential of primary tumors and metastases. Microcalorimetric evaluation will furthermore allow for rapid assessment of new treatment options for primary tumor and metastases aimed at decreasing the metastatic potential.

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32

Jin, Renling. "Cuts in hyperfinite time lines." Journal of Symbolic Logic 57, no. 2 (1992): 522–27. http://dx.doi.org/10.2307/2275286.

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AbstractIn an ω1-saturated nonstandard universe a cut is an initial segment of the hyperinlegers which is closed under addition. Keisler and Leth in [KL] introduced, for each given cut U, a corresponding U-topology on the hyperintegers by letting O be U-open if for any x ϵ O there is a y greater than all the elements in U such that the interval [x − y, x + y] ⊆ O. Let U be a cut in a hyperfinite time line , which is a hyperfinite initial segment of the hyperintegers. U is called a good cut if there exists a U-meager subset of of Loeb measure one. Otherwise U is bad. In this paper we discuss the questions of Keisler and Leth about the existence of bad cuts and related cuts. We show that assuming b > ω1, every hyperfinite time line has a cut with both cofinality and coinitiality uncountable. We construct bad cuts in a nonstandard universe under ZFC. We also give two results about the existence of other kinds of cuts.

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33

Liu, Yue Hui, Jun Wang, Xin Chao Yang, Na Xin Sun, and Li Hua Xu. "Preparation of Antibodies against Maize Inbred Lines Storage Proteins." Advanced Materials Research 781-784 (September 2013): 1717–22. http://dx.doi.org/10.4028/www.scientific.net/amr.781-784.1717.

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A convenient way of producing effective antibody against maize seed storage proteins is present.The protein patterns of maize hybrid seed Ludan50 have two special protein bands with Polyacrylamide gel electrophoresis (PAGE) which was corresponding to its parent inbred lines Luyuan92 and Qi319. We purified the two proteins respectively by acid-PAGE and then immunized rabbit and laying hens, obtained the antiserums and yolk antibodies. Both antiserums and yolk antibodies have good specificity against the antigens, except that the yolk antibody has a higher titer. We also measured its specificity against different protein components extracted with pure water, 2.5% NaCl (w/v) , 70%(v/v) alcohol , 10mM HCl and 50mM KOH. The results appears that the water-soluble proteins tended to be more specific than othors to the antibodies, so the two inbred lines can be identified from each other by ELISA with the antibody we have been produced.

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Gallo, Mariano, Marilisa Botte, Antonio Ruggiero, and Luca D’Acierno. "A Simulation Approach for Optimising Energy-Efficient Driving Speed Profiles in Metro Lines." Energies 13, no. 22 (2020): 6038. http://dx.doi.org/10.3390/en13226038.

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We propose a model for optimising driving speed profiles on metro lines to reduce traction energy consumption. The model optimises the cruising speed to be maintained on each section between two stations; the functions that link the cruising speed to the travel time on the section and the corresponding energy consumption are built using microscopic railway simulation software. In addition to formulating an optimisation model and its resolution through a gradient algorithm, the problem is also solved by using a simulation model and the corresponding optimisation module, with which stochastic factors may be included in the problem. The results are promising and show that traction energy savings of over 25% compared to non-optimised operations may be achieved.

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35

Mozas-Calvache, A. T., J. L. Pérez-García, T. Fernández-del Castillo, J. M. Gómez-López, and C. Colomo-Jiménez. "ANALYSIS OF LANDSLIDES BASED ON DISPLACEMENTS OF LINES." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B7 (June 21, 2016): 549–55. http://dx.doi.org/10.5194/isprs-archives-xli-b7-549-2016.

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Nowadays, the development of UAS has allowed the obtaining of high resolution and accurate cartographic products, such as DSMs and orthoimages. These products can be used in studies of the evolution of landslides. The stability of slopes is a main issue because, among others, it can suppose a serious risk to infrastructures. Until this moment, some studies for analysing slope movements have been carried out using the comparison of positions of well-defined points or comparing two surfaces obtained from two DSMs. In this paper we present a methodology for analysing landslides based on some linear elements located on the terrain. More specifically, we analyse some lines of road sections which are located on an unstable slope, checking the movements of the landslide and their effect on the infrastructure. The methodology includes the obtaining of high resolution orthoimages and DSMs which correspond to two or more epochs of the same landslide, the 3D digitizing of common linear elements, and the computing of the displacements of matched lines (from two epochs) using positional control methods based on lines. The proposed methodology has been tested using two DSMs and two orthoimages (corresponding to two epochs) obtained from two photogrammetric projects developed with an UAS. This real case was applied to an unstable slope with landslides which affected several sections of a road. The results have demonstrated the viability of the proposed methodology in analysing the behaviour of the landslide and more specifically, the effects on these infrastructures.

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36

Mozas-Calvache, A. T., J. L. Pérez-García, T. Fernández-del Castillo, J. M. Gómez-López, and C. Colomo-Jiménez. "ANALYSIS OF LANDSLIDES BASED ON DISPLACEMENTS OF LINES." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B7 (June 21, 2016): 549–55. http://dx.doi.org/10.5194/isprsarchives-xli-b7-549-2016.

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Nowadays, the development of UAS has allowed the obtaining of high resolution and accurate cartographic products, such as DSMs and orthoimages. These products can be used in studies of the evolution of landslides. The stability of slopes is a main issue because, among others, it can suppose a serious risk to infrastructures. Until this moment, some studies for analysing slope movements have been carried out using the comparison of positions of well-defined points or comparing two surfaces obtained from two DSMs. In this paper we present a methodology for analysing landslides based on some linear elements located on the terrain. More specifically, we analyse some lines of road sections which are located on an unstable slope, checking the movements of the landslide and their effect on the infrastructure. The methodology includes the obtaining of high resolution orthoimages and DSMs which correspond to two or more epochs of the same landslide, the 3D digitizing of common linear elements, and the computing of the displacements of matched lines (from two epochs) using positional control methods based on lines. The proposed methodology has been tested using two DSMs and two orthoimages (corresponding to two epochs) obtained from two photogrammetric projects developed with an UAS. This real case was applied to an unstable slope with landslides which affected several sections of a road. The results have demonstrated the viability of the proposed methodology in analysing the behaviour of the landslide and more specifically, the effects on these infrastructures.

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Sorokin, S. А., and O. Yu Sysoev. "ABOUT EFFECTIVE IMPLEMENTATION OF TOPOLOGICAL DELAY LINES." Issues of radio electronics, no. 5 (June 8, 2019): 124–29. http://dx.doi.org/10.21778/2218-5453-2019-5-124-129.

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In order to synchronize signals at receiving points in high‑speed digital electronics, the configurations of the corresponding tracks on the PCB must ensure the same signal delays. Their synchronization is ensured by the creation of topological delay lines, which are realized by inscribing a meander in a certain area, as a rule, a rectangle. The article analyzes the influence of the parameters of the delay line and the shape of the inscribed conductor on the efficiency of use of the installation space. It is noted that computer‑aided design systems offer two basic options for inscribing a meander in a rectangular area: «accordion» and «trombone». The impossibility of reducing and the inexpediency of increasing the width of the region of the delay line in the «trombone» variant makes its use in narrow or short «corridors» ineffective. Therefore, the «accordion» version is considered more versatile and flexible. It also concludes that it is preferable to use long narrow areas of delay lines and the advisability to avoid very short and too narrow areas when automatically creating topological delay lines.

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38

Youn, H. Y., R. Goitsuka, M. Okuda, T. Watari, H. Tsujimoto, and A. Hasegawa. "Two forms of the mb-1 gene transcript in cattle." Journal of Immunology 153, no. 11 (1994): 5127–32. http://dx.doi.org/10.4049/jimmunol.153.11.5127.

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Abstract We have isolated two forms of bovine mb-1 cDNA clones from a cDNA library of a bovine leukemia virus-infected B-lymphoblastoid cell line. The nucleotide sequence analysis of these cDNA clones indicated that the shorter form of cDNA had a 119-bp deletion that precisely corresponded to the exon III domain of the human and murine mb-1 genes. This deletion would result in a frame shift, producing a premature translation termination leading to the lack of the entire transmembrane and cytoplasmic domains of the normal mb-1 molecule. The existence of two species of mRNA transcripts corresponding to the isolated cDNA clones were confirmed in all of the bovine leukemia cell lines examined by PCR with the use of the primers flanking the deletion site. Furthermore, the shorter mb-1 transcript was induced in normal PBMC by stimulation with mitogens or culture supernatants of bovine leukemia virus-infected cell lines. These findings indicate the presence of the truncated mb-1 gene product which may have some function different from that of the normal mb-1 gene product.

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Chen, Zhongying, Andrew P. Kloek, Jens Boch, Fumiaki Katagiri, and Barbara N. Kunkel. "The Pseudomonas syringae avrRpt2 Gene Product Promotes Pathogen Virulence from Inside Plant Cells." Molecular Plant-Microbe Interactions® 13, no. 12 (2000): 1312–21. http://dx.doi.org/10.1094/mpmi.2000.13.12.1312.

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Several bacterial avr genes have been shown to contribute to virulence on susceptible plants lacking the corresponding resistance (R) gene. The mechanisms by which avr genes promote parasitism and disease, however, are not well understood. We investigated the role of the Pseudomonas syringae pv. tomato avrRpt2 gene in pathogenesis by studying the interaction of P. syringae pv. tomato strain PstDC3000 expressing avrRpt2 with several Arabidopsis thaliana lines lacking the corresponding R gene, RPS2. We found that PstDC3000 expressing avrRpt2 grew to significantly higher levels and often resulted in the formation of more severe disease symptoms in ecotype No-0 plants carrying a mutant RPS2 allele, as well as in two Col-0 mutant lines, cpr5 rps2 and coi1 rps2, that exhibit enhanced resistance. We also generated transgenic A. thaliana lines expressing avrRpt2 and demonstrated, by using several different assays, that expression of avrRpt2 within the plant also promotes virulence of PstDC3000. Thus, AvrRpt2 appears to promote pathogen virulence from within the plant cell.

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40

Farineau, Jack, and Danielle Laval-Martin. "Characteristics of Thermoluminescence Bands of Euglena Cells Belonging to 2 Lines Presenting Different Degrees of Diuron-Resistance." Zeitschrift für Naturforschung C 50, no. 1-2 (1995): 86–92. http://dx.doi.org/10.1515/znc-1995-1-213.

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Abstract We have analysed the thermoluminescence (TL) properties of two lines of Euglena exhibiting two degrees of resistance to diuron, by a factor of 100 (ZR 25) and 1000 (ZR 250) respectively, as compared to wild type line (Z). In addition, the two ZR lines developped an identical resistance to atrazine since the I50 for this herbicide in each line was 75 times larger than in wild type. Special TL characteristics were evidenced in the two lines. Bands after 2 flashes (or more) showed a shift of the peak maximum towards low temperature, the shift being the largest in the most DCMU-resistant cells. Similar results were obtained with isolated thylakoids, except that the TL bands appeared at a temperature higher than in corresponding cells. Oscillations in the amplitude of the bands in a flash sequence were largely damped in cells (and thylakoids), particularly in the most DCMU-resistant lines. The results are interpreted as indicating accumulation of Qᴀ −Qʙ after flashes due to a decrease of the equilibrium constant for the reaction Qᴀ − Qʙ ⇄ QᴀQʙ− accompanying the DCMU resistance.

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41

Kırmızıbayrak, Demet, and Jeremy Heyl. "Probing Magnetars Using Spectral Lines with Future Telescopes." Proceedings of the International Astronomical Union 16, S363 (2020): 318–21. http://dx.doi.org/10.1017/s1743921322000692.

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AbstractWe present our findings on magnetar spectral line analysis in the context of upcoming high resolution, high effective area, high throughput X-ray telescopes for two cases: persistent magnetar emission and magnetar bursts. For magnetars in quiescence, we present our preliminary work on modelling for phase-resolved emission. Our results reveal the necessity of constraining line depth and width concurrently with line energy to conclusively determine hotspot emission and corresponding magnetic field geometry. We then present the results of our simulations using effective area and response of various current and upcoming X-ray telescopes for magnetar spectral line detection and expand on the exciting opportunities upcoming telescopes provide to probe quiescent and burst emission region geometry and propagation in the extreme magnetic field of a magnetar.

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42

Schürch, Stéphanie, Celeste C. Linde, Wolfgang Knogge, Lee F. Jackson, and Bruce A. McDonald. "Molecular Population Genetic Analysis Differentiates Two Virulence Mechanisms of the Fungal Avirulence Gene NIP1." Molecular Plant-Microbe Interactions® 17, no. 10 (2004): 1114–25. http://dx.doi.org/10.1094/mpmi.2004.17.10.1114.

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Deletion or alteration of an avirulence gene are two mechanisms that allow pathogens to escape recognition mediated by the corresponding resistance gene in the host. We studied these two mechanisms for the NIP1 avirulence gene in field populations of the fungal barley pathogen Rhynchosporium secalis. The product of the avirulence gene, NIP1, causes leaf necrosis and elicits a defense response on plants with the Rrs1 resistance gene. A high NIP1 deletion frequency (45%) was found among 614 isolates from different geographic populations on four continents. NIP1 was also sequenced for 196 isolates, to identify DNA polymorphisms and corresponding NIP1 types. Positive diversifying selection was found to act on NIP1. A total of 14 NIP1 types were found, 11 of which had not been described previously. The virulence of the NIP1 types was tested on Rrs1 and rrs1 barley lines. Isolates carrying three of these types were virulent on the Rrs1 cultivar. One type each was found in California, Western Europe, and Jordan. Additionally, a field experiment with one pair of near-isogenic lines was conducted to study the selection pressure imposed by Rrs1 on field populations of R. secalis. Deletion of NIP1 was the only mechanism used to infect the Rrs1 cultivar in the field experiment. In this first comprehensive study on the population genetics of a fungal avirulence gene, virulence to Rrs1 in R. secalis was commonly achieved through deletion of the NIP1 avirulence gene but rarely also through point mutations in NIP1.

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43

Kalisperakis, I., G. Karras, and E. Petsa. "A EUCLIDEAN FORMULATION OF INTERIOR ORIENTATION COSTRAINTS IMPOSED BY THE FUNDAMENTAL MATRIX." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences III-3 (June 3, 2016): 75–82. http://dx.doi.org/10.5194/isprsannals-iii-3-75-2016.

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Epipolar geometry of a stereopair can be expressed either in 3D, as the relative orientation (i.e. translation and rotation) of two bundles of optical rays in case of calibrated cameras or, in case of unclalibrated cameras, in 2D as the position of the epipoles on the image planes and a projective transformation that maps points in one image to corresponding epipolar lines on the other. The typical coplanarity equation describes the first case; the Fundamental matrix describes the second. It has also been proven in the Computer Vision literature that 2D epipolar geometry imposes two independent constraints on the parameters of camera interior orientation. In this contribution these constraints are expressed directly in 3D Euclidean space by imposing the equality of the dihedral angle of epipolar planes defined by the optical axes of the two cameras or by suitably chosen corresponding epipolar lines. By means of these constraints, new closed form algorithms are proposed for the estimation of a variable or common camera constant value given the fundamental matrix and the principal point position of a stereopair.

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44

Kalisperakis, I., G. Karras, and E. Petsa. "A EUCLIDEAN FORMULATION OF INTERIOR ORIENTATION COSTRAINTS IMPOSED BY THE FUNDAMENTAL MATRIX." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences III-3 (June 3, 2016): 75–82. http://dx.doi.org/10.5194/isprs-annals-iii-3-75-2016.

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Epipolar geometry of a stereopair can be expressed either in 3D, as the relative orientation (i.e. translation and rotation) of two bundles of optical rays in case of calibrated cameras or, in case of unclalibrated cameras, in 2D as the position of the epipoles on the image planes and a projective transformation that maps points in one image to corresponding epipolar lines on the other. The typical coplanarity equation describes the first case; the Fundamental matrix describes the second. It has also been proven in the Computer Vision literature that 2D epipolar geometry imposes two independent constraints on the parameters of camera interior orientation. In this contribution these constraints are expressed directly in 3D Euclidean space by imposing the equality of the dihedral angle of epipolar planes defined by the optical axes of the two cameras or by suitably chosen corresponding epipolar lines. By means of these constraints, new closed form algorithms are proposed for the estimation of a variable or common camera constant value given the fundamental matrix and the principal point position of a stereopair.

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45

Tosa, V., R. Bruzzese, C. de Lisio, and D. Tescione. "The Vibrational-Translational Relaxation of CF2HCl in Argon." Laser Chemistry 15, no. 1 (1994): 47–54. http://dx.doi.org/10.1155/1994/35971.

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We report in this paper results concerning the vibrational-translational (VT) rates of CF2HCl diluted in Ar as a neutral buffer. The dependence on the buffer concentration and on the initial vibrational energy distribution are obtained by using the 9R(48) and the 9R(34) CO2 laser lines for the excitation process. The differences observed between the results corresponding to the two lines bear valuable information about the dependence of the VT relaxation process on the specific initial conditions of vibrational excitation.

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46

Altay, Rana, Murat Kaya Yapici, and Ali Koşar. "A Hybrid Spiral Microfluidic Platform Coupled with Surface Acoustic Waves for Circulating Tumor Cell Sorting and Separation: A Numerical Study." Biosensors 12, no. 3 (2022): 171. http://dx.doi.org/10.3390/bios12030171.

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The separation of circulating tumor cells (CTCs) from blood samples is crucial for the early diagnosis of cancer. During recent years, hybrid microfluidics platforms, consisting of both passive and active components, have been an emerging means for the label-free enrichment of circulating tumor cells due to their advantages such as multi-target cell processing with high efficiency and high sensitivity. In this study, spiral microchannels with different dimensions were coupled with surface acoustic waves (SAWs). Numerical simulations were conducted at different Reynolds numbers to analyze the performance of hybrid devices in the sorting and separation of CTCs from red blood cells (RBCs) and white blood cells (WBCs). Overall, in the first stage, the two-loop spiral microchannel structure allowed for the utilization of inertial forces for passive separation. In the second stage, SAWs were introduced to the device. Thus, five nodal pressure lines corresponding to the lateral position of the five outlets were generated. According to their physical properties, the cells were trapped and lined up on the corresponding nodal lines. The results showed that three different cell types (CTCs, RBCs, and WBCs) were successfully focused and collected from the different outlets of the microchannels by implementing the proposed multi-stage hybrid system.

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47

Lin, M. F., C. L. Lee, and G. M. Clinton. "Tyrosyl kinase activity is inversely related to prostatic acid phosphatase activity in two human prostate carcinoma cell lines." Molecular and Cellular Biology 6, no. 12 (1986): 4753–57. http://dx.doi.org/10.1128/mcb.6.12.4753-4757.1986.

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Alterations in prostatic acid phosphatase (PAcP), a phosphotyrosyl phosphatase, corresponded to changes in overall tyrosyl kinase activity. PAcP added to extracts of prostate carcinoma cells with a low endogenous level of PAcP activity and elevated tyrosyl kinase activity decreased the tyrosyl kinase activity. On the other hand, when PAcP activity was decreased by the addition of androgens to cells, there was a corresponding increase in tyrosyl kinase activity.

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48

Lin, M. F., C. L. Lee, and G. M. Clinton. "Tyrosyl kinase activity is inversely related to prostatic acid phosphatase activity in two human prostate carcinoma cell lines." Molecular and Cellular Biology 6, no. 12 (1986): 4753–57. http://dx.doi.org/10.1128/mcb.6.12.4753.

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Alterations in prostatic acid phosphatase (PAcP), a phosphotyrosyl phosphatase, corresponded to changes in overall tyrosyl kinase activity. PAcP added to extracts of prostate carcinoma cells with a low endogenous level of PAcP activity and elevated tyrosyl kinase activity decreased the tyrosyl kinase activity. On the other hand, when PAcP activity was decreased by the addition of androgens to cells, there was a corresponding increase in tyrosyl kinase activity.

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49

Sheikh-Hamad, D., J. D. Ferraris, J. Dragolovich, H. G. Preuss, M. B. Burg, and A. Garcia-Perez. "CD9 antigen mRNA is induced by hypertonicity in two renal epithelial cell lines." American Journal of Physiology-Cell Physiology 270, no. 1 (1996): C253—C258. http://dx.doi.org/10.1152/ajpcell.1996.270.1.c253.

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In diverse organisms, cells adapt to hyperosmotic stress by accumulating organic osmolytes. Mammalian renal medullary cells are routinely under osmotic stress. Two renal cell lines, Madin-Darby canine kidney (MDCK) and PAP-HT25, have been widely used to study mammalian osmotic regulation. In these epithelial cells, extracellular hypertonicity induces gene transcription of proteins directly involved in the metabolism and transport of organic osmolytes. This induction is relatively specific and not part of a generalized stress response. Little is known about the signal transduction pathway between cellular detection of extracellular osmolality and increased specific gene transcription. Here, using differential mRNA display polymerase chain reaction on MDCK cells in isotonic vs. hypertonic medium, we identify a cDNA product corresponding to CD9 antigen mRNA. CD9 antigen is a cell surface glycoprotein originally found in cells of the immune system. Although CD9 antigen has been structurally characterized, its function is unclear. We further demonstrate that CD9 antigen mRNA is present in MDCK and PAP-HT25 cells and that its mRNA abundance is induced by extracellular hypertonicity, but not by heat stress. Also, we show that accumulation of organic osmolytes markedly attenuates the CD9 mRNA induction, as only recently demonstrated with genes involved in the hyperosmotic stress response. This suggests a role for CD9 antigen in this response.

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50

Smith, D. F., and B. C. Low. "The Free Energies of Partially Open Magnetic Fields and Coronal Mass Ejections." International Astronomical Union Colloquium 144 (1994): 97–100. http://dx.doi.org/10.1017/s0252921100025094.

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AbstractThe results of Low and Smith (1993) on how to circumvent Aly’s limitation on the energy of force-free magnetic fields are briefly reviewed. Two non-force-free configurations with energies in excess of the energy of the corresponding completely open field are discussed: 1. A magnetic bubble configuration with completely detached field lines. 2. A combined configuration consisting of closed field lines with plasma compressed against the star and a superimposed helmet streamer with all field lines tied to the surface. The results of Low and Smith are extended by considering the stability of these two-dimensional equilibria. It is shown that the bubble configuration is unstable. The stability of the combined configuration can only be answered by a numerical analysis because of the stabilizing effect of line-tying.

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Journal articles on the topic 'Corresponding of two lines'

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