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Статті в журналах з теми "Base fragment of oscillogram"

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Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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1

Shuker, Sabri T. "Base-of-Skull/Infratemporal Fossa Shell Fragment Retrieval." Journal of Oral and Maxillofacial Surgery 68, no. 11 (November 2010): 2668–74. http://dx.doi.org/10.1016/j.joms.2010.05.069.

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2

Martínez-Salvador, Sonia, Babil Menjón, Juan Forniés, Antonio Martín, and Isabel Usón. "Trapping a Difluorocarbene-Platinum Fragment by Base Coordination." Angewandte Chemie International Edition 49, no. 25 (May 6, 2010): 4286–89. http://dx.doi.org/10.1002/anie.200907031.

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3

Martínez-Salvador, Sonia, Babil Menjón, Juan Forniés, Antonio Martín, and Isabel Usón. "Trapping a Difluorocarbene-Platinum Fragment by Base Coordination." Angewandte Chemie 122, no. 25 (May 6, 2010): 4382–85. http://dx.doi.org/10.1002/ange.200907031.

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4

Cross, Simon S. J. "Improved FlexX Docking Using FlexS-Determined Base Fragment Placement." Journal of Chemical Information and Modeling 45, no. 4 (July 2005): 993–1001. http://dx.doi.org/10.1021/ci050026f.

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5

Sechi, Leonardo A., Ilaria Duprè, Guido Leori, Giovanni Fadda, and Stefania Zanetti. "Distribution of a Specific 500-Base-Pair Fragment in Mycobacterium bovis Isolates from Sardinian Cattle." Journal of Clinical Microbiology 38, no. 10 (2000): 3837–39. http://dx.doi.org/10.1128/jcm.38.10.3837-3839.2000.

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Анотація:

Amplification of a specific, 500-bp fragment fromMycobacterium bovis isolates and use of the fragment to differentiate between Mycobacterium tuberculosis andM. bovis was previously reported (J. G. Rodriguez, G. A. Meja, P. Del Portillo, M. E. Patarroyo, and L. A. Murillo, Microbiology 141:2131–2138, 1995). In the present study, 30M. bovis isolates from Sardinian cattle were examined for the presence of this 500-bp fragment; 4 of the 30 isolates lacked the fragment. This result indicates that identification of M. bovis strains by amplification of the 500-bp sequence may lead to false-negative results.

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6

Liverneaux, P. A., S. Ichihara, S. Hendriks, S. Facca, and F. Bodin. "Fractures and dislocation of the base of the thumb metacarpal." Journal of Hand Surgery (European Volume) 40, no. 1 (October 13, 2014): 42–50. http://dx.doi.org/10.1177/1753193414554357.

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Анотація:

Acute traumatic lesions of the base of the first metacarpal are frequent and their consequences can affect the opposition of the thumb. They usually occur after trauma in compression along the axis of the thumb in flexion. Restoring the anatomy and biomechanics of the trapeziometacarpal joint is essential when treating these injuries, hence why surgical treatment is usually indicated. We distinguish trapeziometacarpal dislocations, small-fragment and large-fragment Bennett’s fractures, articular three-fragment Rolando and comminutive fractures and extra-articular fractures of the base of the first metacarpal. All carry the risk of narrowing of the first web. Recent studies have described poor results with conservative treatment. Surgical techniques are varied: percutaneous surgery, open surgery and arthroscopic surgery. The techniques of osteosynthesis are various: locking plates, and direct or indirect screw fixation or pinning. The prognosis depends on the quality of the restoration of the mobility of the trapeziometacarpal joint. Level of evidence: 4

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7

Wei, Ting-Chi. "Fragment answers in Mandarin Chinese." International Journal of Chinese Linguistics 3, no. 1 (June 7, 2016): 100–131. http://dx.doi.org/10.1075/ijchl.3.1.04wei.

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The derivational differences of the fragment answers in Mandarin Chinese lie in whether a fragment moves or not. Under the movement and ellipsis analysis (Merchant 2004), fragment answer to wh-question moves to SpecFocP, followed by TP ellipsis. In contrast, fragment answer to yes-no question or for correction is a base-generated structure, [pro copula fragment]. The analysis is supported not only by the existence of the copular verb and the fragment answers to questions involving the passive constructions and preposition stranding but also by cross-linguistic evidence.

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8

Kikuchi, Hideaki, Takao Sekiya, Susumu Nishimura, and Minro Watanabe. "Rat repetitive sequence: consensus sequence ofTag1–298 base pairs fragment." Nucleic Acids Research 15, no. 19 (1987): 8107–8. http://dx.doi.org/10.1093/nar/15.19.8107.

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9

Lin, Wei, and Ming Xu. "A Microsoft Word Documents Carving Method Base on Interior Virtual Streams." Advanced Materials Research 433-440 (January 2012): 3028–32. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.3028.

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Анотація:

Microsoft word is widely used for word processing and document production. So the loss of the Word file would be great damages for their owner. File carving can reconstruct files based on their content and their own structure rather than using the metadata of the file system. The existing methods do not work very well on carving fragmented Word files. This paper presents a Microsoft Word documents carving method based on interior virtual streams. Firstly, we locate the header section and control streams-SAT to construct the framework for a Word file; then find its fragment regions by utilizing the framework information, and use the sequential hypothesis testing on the data streams in the fragment region to detect the fragment point. Based on DFRWS data sets and real data set, experiments show our method can automatically carve continuous and fragmented Microsoft word file. Moreover, the comparative experiments demonstrate that the proposed method is better than others’ in accurateness and effectiveness.

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10

Ke, Song-Hua, and Roger M. Wartell. "Influence of Neighboring Base Pairs on the Stability of Single Base Bulges and Base Pairs in a DNA Fragment." Biochemistry 34, no. 14 (April 11, 1995): 4593–600. http://dx.doi.org/10.1021/bi00014a012.

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11

Prudente, Henrique, Daniel Baumfeld, and Caio Nery. "Proximal fragment intermetatarsal angle (PFIA) increases after SCARF osteotomy." Foot & Ankle Orthopaedics 3, no. 3 (July 1, 2018): 2473011418S0039. http://dx.doi.org/10.1177/2473011418s00390.

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Category: Bunion Introduction/Purpose: Instability of the joint between the medial cuneiform and the first metatarsal is considered as one of the progression factors of Hallux valgus and its recurrence in some cases. We believe that we must increase the intermetatarsal angle of the proximal fragment during the correction by the SCARF osteotomy, seeking the greater degree of instability of this joint. Doing that, we can prevent further varus displacement, as we have reached the greater degree of instability. The purpose of this study was to evaluate if the SCARF osteotomy is able to increase the varus position of the base of the first metatarsal. Methods: This is a retrospective study with 32 patients with mild, moderate and severe hallux valgus, who were submitted to surgical treatment by the SCARF technique. All patients were operated by the same surgeon. Anteroposterior radiographs of the loaded foot were analyzed in the pre and postoperative (3 months) moments. We developed two measures to evaluate the position of the base of the first metatarsal: The Proximal Fragment Intermetatarsal Angle (PFIA), and the distance between the lateral cortex of the first metatarsal and the medial cortex of the second metatarsal (3 cm from the base of the first metatarsal). All measurements were made with a virtual ruler on magnified digital images and rounded to the nearest 0.1 mm. A 95% confidence interval was considered for statistical significant results (p<0,05). Results: The mean age of the sample was 44 years, with a predominance of females (62%). The mean pre-operative intermetatarsal angle was 14.9°, while in the postoperative period it was 5.2°, showing that there was correction of the metatarsal positioning. However, the PFIA increased to 17.8° at the post-operative period (p<0,05), showing a greater instability of the first metatarsal cuneiform joint, as the base of the first metatarsal was positioned in a more varus condition. In addition, we observed that there was an increase in the distance between the base of the first metatarsus and the second metatarsus after the surgical procedure, from 13.7 to 16 millimeters (p<0,05). Conclusion: We concluded that the SCARF osteotomy is able to increase the varus position of the base of the first metatarsal, leading to more instability at the first metatarsal cuneiform joint, and, in our opinion, less chance of recurrence in the long-term. A prospective and long-term is needed to prove this statement.

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12

ESSALMANI, R., S. SOULIER, N. BESNARD, M. HUDRISIER, J. COSTA DA SILVA, and J. L. VILOTTE. "Données de base sur la transgenèse." INRAE Productions Animales 13, HS (December 22, 2000): 181–86. http://dx.doi.org/10.20870/productions-animales.2000.13.hs.3835.

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La transgenèse permet d’introduire dans le génome d’un animal un fragment d’ADN qui sera ensuite transmis de génération en génération. Elle utilise différentes approches méthodologiques. Certaines, encore limitées à peu d’espèces, permettent des modifications très fines du génome. La transgenèse, associée au développement de la biologie moléculaire, offre des applications multiples tant dans la recherche fondamentale qu’appliquée. Elle est de fait devenue un outil indispensable pour l’analyse de la régulation de l’expression des gènes et la compréhension de leur fonction.

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13

Duke, HF. "Rotational scarf (Z) osteotomy bunionectomy for correction of high intermetatarsal angles." Journal of the American Podiatric Medical Association 82, no. 7 (July 1, 1992): 352–60. http://dx.doi.org/10.7547/87507315-82-7-352.

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Анотація:

A modification of the scarf osteotomy bunionectomy is described. The modification involves a change in the movement of the osseous fragments from lateral transposition to lateral rotation of the metatarsal head fragment around a stationary axis at the metatarsal base. Rotation of the distal fragment in this manner allows greater than 50% transposition and, therefore, higher intermetatarsal angle corrections can be obtained as compared to a transpositional scarf osteotomy. The configuration of the scarf osteotomy is more stable to the stress of weightbearing than the closing base wedge osteotomy, and this modification can provide a useful alternative to closing base wedge osteotomy for the correction of severe hallux valgus deformity.

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14

Abrescia, N. G. A., A. Thompson, T. Huynh-Dinh, and J. A. Subirana. "Crystal structure of an antiparallel DNA fragment with Hoogsteen base pairing." Proceedings of the National Academy of Sciences 99, no. 5 (March 5, 2002): 2806–11. http://dx.doi.org/10.1073/pnas.052675499.

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15

Cottarel, G., J. H. Shero, P. Hieter, and J. H. Hegemann. "A 125-base-pair CEN6 DNA fragment is sufficient for complete meiotic and mitotic centromere functions in Saccharomyces cerevisiae." Molecular and Cellular Biology 9, no. 8 (August 1989): 3342–49. http://dx.doi.org/10.1128/mcb.9.8.3342.

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Анотація:

Saccharomyces cerevisiae centromeres contain a conserved region ranging from 111 to 119 base pairs (bp) in length, which is characterized by the three conserved DNA elements CDEI, CDEII, and CDEIII. We isolated a 125-bp CEN6 DNA fragment (named ML CEN6) containing only these conserved elements and assayed it completely separated from its chromosomal context on circular minichromosomes and on a large linear chromosome fragment. The results show that this 125-bp CEN6 DNA fragment is by itself sufficient for complete mitotic and meiotic centromere functions.

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16

Cottarel, G., J. H. Shero, P. Hieter, and J. H. Hegemann. "A 125-base-pair CEN6 DNA fragment is sufficient for complete meiotic and mitotic centromere functions in Saccharomyces cerevisiae." Molecular and Cellular Biology 9, no. 8 (August 1989): 3342–49. http://dx.doi.org/10.1128/mcb.9.8.3342-3349.1989.

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Анотація:

Saccharomyces cerevisiae centromeres contain a conserved region ranging from 111 to 119 base pairs (bp) in length, which is characterized by the three conserved DNA elements CDEI, CDEII, and CDEIII. We isolated a 125-bp CEN6 DNA fragment (named ML CEN6) containing only these conserved elements and assayed it completely separated from its chromosomal context on circular minichromosomes and on a large linear chromosome fragment. The results show that this 125-bp CEN6 DNA fragment is by itself sufficient for complete mitotic and meiotic centromere functions.

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17

FERNANDEZ-MAESTRE, Roberto, and Alonso J. MARRUGO-GONZÁLEZ. "ACID-BASE PROPERTIES OF -UNSATURATED KETONES OBTAINED FROM REACTION OF 5-FORMYL-8-HYDROXYQUINOLINE WITH P-SUBSTITUTED ACETOPHENONES." Periódico Tchê Química 16, no. 31 (January 20, 2019): 755–64. http://dx.doi.org/10.52571/ptq.v16.n31.2019.766_periodico31_pgs_755_764.pdf.

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Chalcones (α,β-unsaturated ketones) containing aromatic or heterocyclic radicals are highly reactive, allowing the synthesis of novel organic compounds. In this study, the dissociation constants (pKa) of seven chalcones derived from 8-hydroxyquinoline were determined and the influence on dissociation of substituents in the phenyl group (-CH3, -OCH3, -N(CH3)2, -Cl, -Br, and -NO2) was analysed. pKa values are important because they determine the pH at which ligands are fully deprotonated -when they show their maximum chelating properties- and determine the ligands interactions at different pH values. The chalcones’ pKa’s were calculated by visible ultraviolet spectroscopy in a water-ethanol (1:1) mixture using the Henderson-Hasselbach equation. It was shown that the 8-hydroxyquinolinic fragment has a large electron donor effect on the π system of the chalcones. The introduction of substituents (R) in the phenyl fragment of the chalcones slightly affected the dissociation of the hydroxyl group and the protonation of the nitrogen in the hydroxyquinoline fragment. The acceptor substituents (Cl, Br, NO2) increased the polarity of OH- and its acidity. Nitrogen protonation decreased electron donor properties of this fragment, and deprotonation of the hydroxyl caused the opposite effect. Substituents introduction in the phenyl fragment slightly affected hydroxyl group dissociation and nitrogen protonation.

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18

Elion, E. A., and J. R. Warner. "An RNA polymerase I enhancer in Saccharomyces cerevisiae." Molecular and Cellular Biology 6, no. 6 (June 1986): 2089–97. http://dx.doi.org/10.1128/mcb.6.6.2089.

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By the use of an artificial gene coding for rRNA (rDNA gene), we found that transcription of the major precursor rRNA in Saccharomyces cerevisiae cells is stimulated 15-fold by a positive control element located 2 kilobases upstream of the transcription initiation site. Analysis of in vitro runon transcripts suggests that this promoter element increases the frequency of initiation by RNA polymerase I molecules. A 190-base-pair fragment encompassing the promoter element can stimulate transcription on a centromere plasmid in either orientation, upstream or downstream of the transcription initiation site, suggesting that it is an enhancer element. Integration of artificial rDNA genes into a nonribosomal locus in the genome demonstrates that the rDNA enhancer functions either 5' or 3' to an rRNA transcription unit, suggesting it may operate in both directions within the rDNA tandem array. This is the first observation in S. cerevisiae of the stimulation of transcription by an element placed downstream. Finally, enhancer activity is dependent upon sequences that lie at both boundaries of the 190-base-pair fragment. In particular, a 5-base-pair deletion at the extreme 3' boundary of the 190-base-pair fragment greatly reduces the activation of transcription and implicates a set of inverted repeats.

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19

Elion, E. A., and J. R. Warner. "An RNA polymerase I enhancer in Saccharomyces cerevisiae." Molecular and Cellular Biology 6, no. 6 (June 1986): 2089–97. http://dx.doi.org/10.1128/mcb.6.6.2089-2097.1986.

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Анотація:

By the use of an artificial gene coding for rRNA (rDNA gene), we found that transcription of the major precursor rRNA in Saccharomyces cerevisiae cells is stimulated 15-fold by a positive control element located 2 kilobases upstream of the transcription initiation site. Analysis of in vitro runon transcripts suggests that this promoter element increases the frequency of initiation by RNA polymerase I molecules. A 190-base-pair fragment encompassing the promoter element can stimulate transcription on a centromere plasmid in either orientation, upstream or downstream of the transcription initiation site, suggesting that it is an enhancer element. Integration of artificial rDNA genes into a nonribosomal locus in the genome demonstrates that the rDNA enhancer functions either 5' or 3' to an rRNA transcription unit, suggesting it may operate in both directions within the rDNA tandem array. This is the first observation in S. cerevisiae of the stimulation of transcription by an element placed downstream. Finally, enhancer activity is dependent upon sequences that lie at both boundaries of the 190-base-pair fragment. In particular, a 5-base-pair deletion at the extreme 3' boundary of the 190-base-pair fragment greatly reduces the activation of transcription and implicates a set of inverted repeats.

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20

Bhatt, Manish, Avdesh Mishra, Md Wasi Ul Kabir, S. E. Blake-Gatto, Rishav Rajendra, Md Tamjidul Hoque, and Irfan Ahmed. "Hierarchy-Based File Fragment Classification." Machine Learning and Knowledge Extraction 2, no. 3 (August 3, 2020): 216–32. http://dx.doi.org/10.3390/make2030012.

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File fragment classification is an essential problem in digital forensics. Although several attempts had been made to solve this challenging problem, a general solution has not been found. In this work, we propose a hierarchical machine-learning-based approach with optimized support vector machines (SVM) as the base classifiers for file fragment classification. This approach consists of more general classifiers at the top level and more specialized fine-grain classifiers at the lower levels of the hierarchy. We also propose a primitive taxonomy for file types that can be used to perform hierarchical classification. We evaluate our model with a dataset of 14 file types, with 1000 fragments measuring 512 bytes from each file type derived from a subset of the publicly available Digital Corpora, the govdocs1 corpus. Our experiment shows comparable results to the present literature, with an average accuracy of 67.78% and an F1-measure of 65% using 10-fold cross-validation. We then improve on the hierarchy and find better results, with an increase in the F1-measure of 1%. Finally, we make our assessment and observations, then conclude the paper by discussing the scope of future research.

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21

NAKAGO, K., H. HASHIZUME, M. SENDA, K. NISHIDA, S. MASAOKA, and H. INOUE. "Simultaneous Fracture-Dislocations of the Distal and Proximal Interphalangeal Joints." Journal of Hand Surgery 24, no. 6 (December 1999): 699–702. http://dx.doi.org/10.1054/jhsb.1999.0228.

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Анотація:

Sixteen cases of simultaneous fracture-dislocations of both the distal interphalangeal (DIP) and proximal interphalangeal (PIP) joints in the same finger that were treated during the past 10 years were classified into three types: the swan-neck injury (dorsal fragment of the base of the distal phalanx at the DIP joint and palmar fragment of the base of the middle phalanx at the PIP joint); the double-hyperextension injury (palmar fragments at the DIP and PIP joints); and the straight-finger injury (with dorsal and palmar bone fragments at the DIP joint). The results of treatment were more satisfactory in PIP joints than in DIP joints.

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22

Arinchev, S. V. "An Analysis of Flight Dynamics of a Space Debris Collector Transferring from its Orbital Plane to the Orbital Plane of a Debris Fragment." Proceedings of Higher Educational Institutions. Маchine Building, no. 01 (718) (January 2020): 63–71. http://dx.doi.org/10.18698/0536-1044-2020-1-63-71.

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Анотація:

A space debris collector and a debris fragment move along random noncoplanar orbits ranging from 400 to 2000 km in height. The space collector leaves the base station, transfers into the orbital plane of a debris fragment, aligns itself with and approaches the fragment, grabs it and returns to the base station. The execution time of the flight mission is 24 hours. This paper examines only the stage when the debris collector transfers from its orbital plane to the fragment’s orbital plane. Dampening is provided by repeated activation of a cruise propulsion unit with the thrust of no less than 20000 N and the fuel specific impulse of no less than 15000 m/s. An analysis of dynamics of the orbital flight is performed by numerically integrating the equations of orbital movement of the debris collector and the debris fragment using the fourth order Runge-Kutta methods. The change of the scalar product sign of the vector of the orbit area integral of the debris fragment and the radius-vector of the debris collector is the criterion for intersecting the final orbit plane. Fuel depletion and the nonsphericity of the Earth’s gravitational field in the second zonal harmonic are taken into account, and an example of the calculations is given. Convergence estimates for the integration procedure with regard to the final orbit inclination relative to the orbit’s eccentricity are provided.

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23

Korosteleva, Kristina V. "SI 4904: Сonservation as a Base for New Discoveries". Written Monuments of the Orient 6, № 2 (9 лютого 2021): 114–19. http://dx.doi.org/10.17816/wmo49894.

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Анотація:

Book fragments in Old Uyghur language, that constitute the major part of the Serindia collection, currently undergo conservation and preservation procedures. The throughout conservation started in 2019 showed, that modern methods not only give new life to ancient texts, but also contribute to the academic research. The article sought to describe conservation procedures of the particular fragment SI 4904 from the Serindia collection, as well as subsequently made discoveries.

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24

Rusakova, Natalya, Nikolay Semenishyn, and Yuriy Korovin. "Heteronuclear lanthanide-containing complexes on the base of modified porphyrins and their luminescent properties." Journal of Porphyrins and Phthalocyanines 14, no. 02 (February 2010): 166–69. http://dx.doi.org/10.1142/s1088424610001817.

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Анотація:

The mono- and heteronuclear complexes of the general formula M-ATPP-Ln-L ( Ln = Yb , Lu; M = Zn , Cu , 2H ; ATPP - mono-p-aminotetraphenylporphyrin; L = EDTA - ethylenediaminetetraacetic acid or DTPA - diethylenetriaminepentaacetic acid) were prepared and characterized by elemental analysis, MS, 1H NMR, UV-vis and luminescent spectra. In all compounds the lanthanide ion is coordinated by aminopolycarboxylic fragment only. The spectra of metal complexes were compared with those of free-base porphyrins. Luminescence studies showed that porphyrin fragment of ligands absorbed the visible light and transferred the energy to lanthanide (ytterbium) ion emitting in the near IR-region. Efficiency of the 4f-luminescence has been determined for d-f-metal containing porphyrin complexes in comparison with the mononuclear Yb-containing complexes in DMF solutions.

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25

Durrant, CAT, and G. Bantick. "Small flake, big problem: an unreported cause of extensor pollicis longus tendon rupture." Annals of The Royal College of Surgeons of England 92, no. 1 (January 2010): e24-e26. http://dx.doi.org/10.1308/147870810x476692.

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Анотація:

Fracture of the base of the third metacarpal with associated avulsion of the extensor carpi radialis brevis tendon is a rare injury. We report such a fracture and the unusual resulting complication of division of the extensor pollicis longus tendon by the avulsed bony fragment. Careful monitoring using lateral radiographs is needed to make the diagnosis and displacement of the avulsed fragment warrants open reduction and internal fixation.

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26

Mann, C., and R. W. Davis. "Structure and sequence of the centromeric DNA of chromosome 4 in Saccharomyces cerevisiae." Molecular and Cellular Biology 6, no. 1 (January 1986): 241–45. http://dx.doi.org/10.1128/mcb.6.1.241.

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Анотація:

The CEN4 sequences from chromosome 4 that impart mitotic stability to autonomously replicating (ARS) plasmids in yeast cells have been localized to a 1,755-base-pair (bp) fragment. This fragment could be cut in half to give two adjacent, nonoverlapping fragments, that each contained some mitotic stabilization sequences. One of the half-fragments worked as efficiently as the larger fragment from which it was derived, while the other half provided a much poorer degree of mitotic stabilization. Sequencing of 2,095 bp of DNA including this region revealed the presence of a centromere consensus sequence, elements I, II, and III (M. Fitzgerald-Hayes, L. Clarke, and J. Carbon, Cell 29:235-244, 1982), in the half-fragment providing high levels of mitotic stability. The poorly stabilizing half-fragment did not contain any obvious sequence homologies to other centromere sequences. Deletion analysis of the 1,755-bp fragment indicated that removal of the 14-bp element I plus 16 of the 82 bp of element II impaired mitotic stability. Removal of elements I and II eliminated the mitotic stability provided by the consensus sequence.

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27

Mann, C., and R. W. Davis. "Structure and sequence of the centromeric DNA of chromosome 4 in Saccharomyces cerevisiae." Molecular and Cellular Biology 6, no. 1 (January 1986): 241–45. http://dx.doi.org/10.1128/mcb.6.1.241-245.1986.

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Анотація:

The CEN4 sequences from chromosome 4 that impart mitotic stability to autonomously replicating (ARS) plasmids in yeast cells have been localized to a 1,755-base-pair (bp) fragment. This fragment could be cut in half to give two adjacent, nonoverlapping fragments, that each contained some mitotic stabilization sequences. One of the half-fragments worked as efficiently as the larger fragment from which it was derived, while the other half provided a much poorer degree of mitotic stabilization. Sequencing of 2,095 bp of DNA including this region revealed the presence of a centromere consensus sequence, elements I, II, and III (M. Fitzgerald-Hayes, L. Clarke, and J. Carbon, Cell 29:235-244, 1982), in the half-fragment providing high levels of mitotic stability. The poorly stabilizing half-fragment did not contain any obvious sequence homologies to other centromere sequences. Deletion analysis of the 1,755-bp fragment indicated that removal of the 14-bp element I plus 16 of the 82 bp of element II impaired mitotic stability. Removal of elements I and II eliminated the mitotic stability provided by the consensus sequence.

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28

Dodson, Aidan. "Amenmesse in Kent, Liverpool, and Thebes." Journal of Egyptian Archaeology 81, no. 1 (December 1995): 115–28. http://dx.doi.org/10.1177/030751339508100114.

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Анотація:

Publication of a fragment of rock-stela at Chiddingstone Castle, Kent (Inv. 42), which bears the names of Sethos II, written over the erased cartouches of Amenmesse. It may have come from the ‘Oratory of Ptah’ in the Deir el-Medina/Biban el-Harim area, as may a fragment of another relief formerly in Liverpool Museum (M13827). Consideration is also given to a former Liverpool statue base (M13510) that bore the superimposed names of Amenmesse and another king.

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29

Brown, T., G. Kneale, W. N. Hunter, and O. Kennard. "Structural characterisation of the bromouracil.guanine base pair mismatch in a Z-DNA fragment." Nucleic Acids Research 14, no. 4 (1986): 1801–9. http://dx.doi.org/10.1093/nar/14.4.1801.

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30

Coll, Miguel, Andrew H. J. Wang, Gijs A. van der Marel, Jacques H. van Boom, and Alexander Rich. "Crystal Structure of A Z-DNA Fragment Containing Thymine/2-Aminoadenine Base Pairs." Journal of Biomolecular Structure and Dynamics 4, no. 2 (October 1986): 157–72. http://dx.doi.org/10.1080/07391102.1986.10506337.

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31

Rodríguez, Juan Germán, Juan Carlos Fissanoti, Patricia Del Portillo, Manuel Elkin Patarroyo, María Isabel Romano, and Angel Cataldi. "Amplification of a 500-Base-Pair Fragment from Cultured Isolates of Mycobacterium bovis." Journal of Clinical Microbiology 37, no. 7 (1999): 2330–32. http://dx.doi.org/10.1128/jcm.37.7.2330-2332.1999.

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Анотація:

The presence of a 500-bp fragment which amplifies a region from the genome of Mycobacterium bovis (J. G. Rodriguez, G. A. Meija, P. Del Portillo, M. E. Patarroyo, and L. A. Murillo, Microbiology 141:2131–2138, 1995) was evaluated by carrying out PCR on 121 M. bovis isolates. TheM. bovis strains, previously characterized by culture and biochemical tests, were isolated from cattle in different regions of Argentina, Mexico, and Colombia. Four additional strains isolated from sea lions that belong to the M. tuberculosiscomplex were also included in the study. All of the isolates tested were PCR positive, rendering the expected 500-bp band and giving a correlation of 100% with previous microbiological characterization. Southern blot analysis revealed a common band of 1,800 bp and a polymorphic high-molecular-mass hybridization pattern. The results show that this assay may be useful for diagnosis and identification ofM. bovis in cattle.

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32

OKANO, KAZUNOBU. "Fragment walking : Simple discriminating method of base sequences connecting the limiting enzyme fragments." Seibutsu Butsuri 37, no. 1 (1997): 340–41. http://dx.doi.org/10.2142/biophys.37.340.

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33

Sorlie, Susan S., and R. Pecora. "A dynamic light scattering study of a 2311 base pair DNA restriction fragment." Macromolecules 21, no. 5 (September 1988): 1437–49. http://dx.doi.org/10.1021/ma00183a039.

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34

Calvo, Beatriz, Ramón Macías, Carmen Cunchillos, Fernando J. Lahoz, and Luis A. Oro. "Brønsted Acid/Base Driven Chemistry with Rhodathiaboranes: A Labile {SB9H9}–Thiadecaborane Fragment System." Organometallics 31, no. 7 (October 7, 2011): 2526–29. http://dx.doi.org/10.1021/om200707m.

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35

Huang, Jun Qing, Wei Zhang, Xue Hui Yang, and Wen Yue Wang. "Techniques of Fragment Numerical Simulation of Armour-Piercing Warhead Penetrating Target Process Base on AUTODYN." Advanced Materials Research 466-467 (February 2012): 834–38. http://dx.doi.org/10.4028/www.scientific.net/amr.466-467.834.

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Анотація:

Needing to analyse fragment’s destructive effect for military researching purpose, it is produced after armour-piercing warhead penetrate target. How to reduce physical test expense and acquire believable researching result at the same time have been puzzled problems that must be solved as soon as possible. Discussing techniques of fragment produced in armour-piercing warhead penetration process with the way of numerical simulation based on AUTODYN, it is a program that analyses dynamics in this paper. Techniques mainly include the Lagrange, the SPH, the Lagrange combining with the SPH and the Lagrange combining with restriction invalidation, at the same time, analysed different technique’s merit and demerit by establishing the numeric simulation model of armour-piercing warhead destroying target and obtaining simulation result. By researching the technique of making numeric fragment, establishing favorable base for researching armour-piercing warhead destroying mechanism.

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36

Li, Ping, Dong Liu, Min Guo, Yuemin Pan, Fangxin Chen, Huajian Zhang, and Zhimou Gao. "A PCR-based Assay for Distinguishing between A1 and A2 Mating Types of Phytophthora capsici." Journal of the American Society for Horticultural Science 142, no. 4 (July 2017): 260–64. http://dx.doi.org/10.21273/jashs04013-17.

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Sexual reproduction in the plant parasite Phytophthora capsici Leonian requires the interaction of two distinct mating types, A1 and A2. Co-occurrence of these mating types can enhance the genetic diversity of P. capsici and alter its virulence or resistance characteristics. Using an intersimple sequence repeat (ISSR) screen of microsatellite diversity, we identified, cloned, and sequenced a novel 1121-base pair (bp) fragment specific to the A1 mating type of P. capsici. Primers Pcap-1 and Pcap-2 were designed from this DNA fragment to specifically detect the A1 mating type. Polymerase chain reaction (PCR) using these primers amplified an expected 997-bp fragment from known A1 mating types, but yielded a 508-bp fragment from known A2 mating types. This PCR-based assay could be adapted to accurately and rapidly detect the co-occurrence of A1 and A2 P. capsici mating types from field material.

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37

Nobile, C., J. Nickol, and R. G. Martin. "Nucleosome phasing on a DNA fragment from the replication origin of simian virus 40 and rephasing upon cruciform formation of the DNA." Molecular and Cellular Biology 6, no. 8 (August 1986): 2916–22. http://dx.doi.org/10.1128/mcb.6.8.2916.

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Nucleosomes were reconstituted in vitro from a fragment of DNA spanning the simian virus 40 minimal replication origin. The fragment contains a 27-base-pair palindrome (perfect inverted repeat). DNA molecules with stable cruciform structures were generated by heteroduplexing this DNA fragment with mutants altered within the palindromic sequence (C. Nobile and R. G. Martin, Int. Virol., in press). Analyses of the structural features of the reconstituted nucleosomes by the DNase I footprint technique revealed two alternative DNA-histone arrangements, each one accurately phased with respect to the uniquely labeled DNA ends. As linear double-stranded DNA, a unique core particle was formed in which the histones strongly protected the regions to both sides of the palindrome. The cruciform structure seemed to be unable to associate with core histones and, therefore, an alternative phasing of the histone octamer along the DNA resulted. Thus, nucleosome positioning along a specific DNA sequence appears to be influenced in vitro by the secondary structure (linear or cruciform) of the 27-base-pair palindrome. The formation of cruciform structures in vivo, if they occur, might therefore represent a molecular mechanism by which nucleosomes are phased.

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38

Nobile, C., J. Nickol, and R. G. Martin. "Nucleosome phasing on a DNA fragment from the replication origin of simian virus 40 and rephasing upon cruciform formation of the DNA." Molecular and Cellular Biology 6, no. 8 (August 1986): 2916–22. http://dx.doi.org/10.1128/mcb.6.8.2916-2922.1986.

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Анотація:

Nucleosomes were reconstituted in vitro from a fragment of DNA spanning the simian virus 40 minimal replication origin. The fragment contains a 27-base-pair palindrome (perfect inverted repeat). DNA molecules with stable cruciform structures were generated by heteroduplexing this DNA fragment with mutants altered within the palindromic sequence (C. Nobile and R. G. Martin, Int. Virol., in press). Analyses of the structural features of the reconstituted nucleosomes by the DNase I footprint technique revealed two alternative DNA-histone arrangements, each one accurately phased with respect to the uniquely labeled DNA ends. As linear double-stranded DNA, a unique core particle was formed in which the histones strongly protected the regions to both sides of the palindrome. The cruciform structure seemed to be unable to associate with core histones and, therefore, an alternative phasing of the histone octamer along the DNA resulted. Thus, nucleosome positioning along a specific DNA sequence appears to be influenced in vitro by the secondary structure (linear or cruciform) of the 27-base-pair palindrome. The formation of cruciform structures in vivo, if they occur, might therefore represent a molecular mechanism by which nucleosomes are phased.

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39

Cui, Hairui, Qiongyu Wu, and Bin Zhu. "Specific-Locus Amplified Fragment Sequencing Reveals Spontaneous Single-Nucleotide Mutations in Rice OsMsh6 Mutants." BioMed Research International 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/4816973.

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Genomic stability depends in part on an efficient DNA lesion recognition and correction by the DNA mismatch repair (MMR) system. We investigated mutations arising spontaneously in rice OsMsh6 mutants by specific-locus amplified fragment sequencing. Totally 994 single-nucleotide mutations were identified in three mutants and on average the mutation density is about 1/136.72 Kb per mutant line. These mutations were relatively randomly distributed in genome and might be accumulated in generation-dependent manner. All possible base transitions and base transversions could be seen and the ratio of transitions to transversions was about 3.12. We also observed the nearest-neighbor bias around the mutated base. Our data suggests that OsMsh6 (LOC_Os09g24220) is important in ensuring genome stability by recognizing mismatches that arise spontaneously and provides useful information for investigating the function of the OsMsh6 gene in DNA repair and exploiting MMR mutants in rice induced mutation breeding.

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40

Steffen, Martina L., and C. R. Harington. "Giant short-faced bear (Arctodus simus) from late Wisconsinan deposits at Cowichan Head, Vancouver Island, British Columbia." Canadian Journal of Earth Sciences 47, no. 8 (August 2010): 1029–36. http://dx.doi.org/10.1139/e10-018.

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A giant short-faced bear ( Arctodus simus ) ulna fragment was found at the base of exposed Quaternary sediments at Cowichan Head, southern Vancouver Island, British Columbia. In this paper, the ulna fragment and its geological context are described and a reasonable taphonomic trajectory is presented. The radiocarbon age of 22 750 ± 140 BP on the bone indicates that these bears were on Vancouver Island during the late Wisconsinan. A likely source for the Cowichan Head A. simus was from the mainland to the southeast.

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41

Beckenbach, Andrew T., W. Kelley Thomas, and Homayoun Sohrabi. "Intraspecific sequence variation in the mitochondrial genome of rainbow trout (Oncorhynchus mykiss)." Genome 33, no. 1 (February 1, 1990): 13–15. http://dx.doi.org/10.1139/g90-003.

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We examined the sequence of a 2214 base pair HindIII fragment from the mitochondrial genome of six rainbow trout. The fragment encodes four proteins and two tRNAs. Sequences for two fish from a single locality were identical. Those from separate localities differed by from 1 to 7 nucleotide substitutions. Of 13 variable sites, 12 were synonymous and 1 led to a conservative amino acid substitution. Transitions accounted for 12 of the 13 variants. In contrast to interspecific comparisons (Thomas and Beckenbach. 1989. J. Mol. Evol. 29: 233–245), the intraspecific divergence estimates based on sequence are less than those estimated from restriction fragment analysis, suggesting a complex, dynamic process for the accumulation of variation in the mitochondrial genome.Key words: rainbow trout, Oncorhynchus, mtDNA, intraspecific variation.

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42

Yarger, J. G., G. Armilei, and M. C. Gorman. "Transcription terminator-like element within a Saccharomyces cerevisiae promoter region." Molecular and Cellular Biology 6, no. 4 (April 1986): 1095–101. http://dx.doi.org/10.1128/mcb.6.4.1095.

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We analyzed a cloned fragment of the yeast URA3 promoter region that contains a sequence of DNA capable of functioning as a highly efficient transcription terminator. BAL 31 deletions have shown the signal for the transcription termination activity is less than or equal to 110 base pairs and resides between bases 45 and 155 upstream of the URA3 primary ATG codon at base 227. In our in vivo assay system, the DNA fragment is able to terminate transcripts very efficiently in either orientation. The terminated transcripts bind to oligodeoxythymidylate cellulose columns and promote the synthesis of full-length cDNAs, suggesting that the transcripts are polyadenylated. The 110-base-pair region contains no sequence resembling terminator consensus sequences described by Zaret and Sherman (K.S. Zaret and F. Sherman, Cell, 28:563-573, 1982) or Henikoff and Cohen (S. Henikoff and E.H. Cohen, Mol. Cell. Biol., 4:1515-1520, 1984). We discuss the possible physiological relevance of this sequence to bona fide termination of transcription and to URA3 regulation in Saccharomyces cerevisiae.

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43

Yarger, J. G., G. Armilei, and M. C. Gorman. "Transcription terminator-like element within a Saccharomyces cerevisiae promoter region." Molecular and Cellular Biology 6, no. 4 (April 1986): 1095–101. http://dx.doi.org/10.1128/mcb.6.4.1095-1101.1986.

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Анотація:

We analyzed a cloned fragment of the yeast URA3 promoter region that contains a sequence of DNA capable of functioning as a highly efficient transcription terminator. BAL 31 deletions have shown the signal for the transcription termination activity is less than or equal to 110 base pairs and resides between bases 45 and 155 upstream of the URA3 primary ATG codon at base 227. In our in vivo assay system, the DNA fragment is able to terminate transcripts very efficiently in either orientation. The terminated transcripts bind to oligodeoxythymidylate cellulose columns and promote the synthesis of full-length cDNAs, suggesting that the transcripts are polyadenylated. The 110-base-pair region contains no sequence resembling terminator consensus sequences described by Zaret and Sherman (K.S. Zaret and F. Sherman, Cell, 28:563-573, 1982) or Henikoff and Cohen (S. Henikoff and E.H. Cohen, Mol. Cell. Biol., 4:1515-1520, 1984). We discuss the possible physiological relevance of this sequence to bona fide termination of transcription and to URA3 regulation in Saccharomyces cerevisiae.

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44

Baran, N., A. Lapidot, and H. Manor. "Unusual sequence element found at the end of an amplicon." Molecular and Cellular Biology 7, no. 7 (July 1987): 2636–40. http://dx.doi.org/10.1128/mcb.7.7.2636.

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In a polyomavirus-transformed rat cell line, designated LPT, the polyomavirus DNA is integrated into a single chromosomal site. Treatment of LPT cells with carcinogens induces amplification of the integrated virus DNA and flanking cellular sequences. We show that the amplification is arrested within a specific cell DNA segment that maps 1.3 to 1.85 kilobases beyond one virus-cell DNA junction, defined as the left junction. We also present the sequence of an 897-base-pair fragment spanning the arrest site. This fragment contains an unusual sequence element, which consists of two contiguous components, a potential cruciform with stems of 6 base pairs and a d(G-A)27 X d(T-C)27 tract, and maps 1,497 to 1,564 nucleotides beyond the left junction. The possibility that this unusual sequence plays a role in the arrest of the amplification process is discussed.

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45

Rott, Michael, Leland Humble, Eric Allen, Margaret Green, and Isabel Leal. "An effective PCR-based diagnostic method for the detection of Bursaphelenchus xylophilus (Nematoda: Aphelenchoididae) in wood samples from lodgepole pine." Nematology 7, no. 6 (2005): 833–42. http://dx.doi.org/10.1163/156854105776186398.

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AbstractA molecular diagnostic method has been designed for the detection and identification of Bursaphelenchus xylophilus. Heat shock protein 70 gene sequences from B. xylophilus and the closely related B. mucronatus were compared and used to design primers Bx701F and Bx701R which amplify a 171 base pair fragment from B. xylophilus by PCR. As a control, primers Bm701F and Bm701R were designed which specifically amplify a 168 base pair fragment from B. mucronatus. After optimisation, B. xylophilus primers were shown to be highly sensitive and could easily detect 23 target copies, or less than one nematode. Species-specific detection of B. xylophilus was carried out directly from concentrated Baermann funnel extracts using wood samples from lodgepole pine (Pinus contorta var. latifolia) trees from British Columbia, Canada, containing an unknown nematode population, thus bypassing the need for culturing or recovering the nematode before analysis.

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46

Baran, N., A. Lapidot, and H. Manor. "Unusual sequence element found at the end of an amplicon." Molecular and Cellular Biology 7, no. 7 (July 1987): 2636–40. http://dx.doi.org/10.1128/mcb.7.7.2636-2640.1987.

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Анотація:

In a polyomavirus-transformed rat cell line, designated LPT, the polyomavirus DNA is integrated into a single chromosomal site. Treatment of LPT cells with carcinogens induces amplification of the integrated virus DNA and flanking cellular sequences. We show that the amplification is arrested within a specific cell DNA segment that maps 1.3 to 1.85 kilobases beyond one virus-cell DNA junction, defined as the left junction. We also present the sequence of an 897-base-pair fragment spanning the arrest site. This fragment contains an unusual sequence element, which consists of two contiguous components, a potential cruciform with stems of 6 base pairs and a d(G-A)27 X d(T-C)27 tract, and maps 1,497 to 1,564 nucleotides beyond the left junction. The possibility that this unusual sequence plays a role in the arrest of the amplification process is discussed.

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47

Demeke, T., A. Laroche, and D. A. Gaudet. "A DNA marker for the Bt-10 common bunt resistance gene in wheat." Genome 39, no. 1 (February 1, 1996): 51–55. http://dx.doi.org/10.1139/g96-007.

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Анотація:

The Bt-10 bunt gene confers resistance to most races of the common bunt fungi, Tilletia tritici and T. laevis. The RAPD technique, employing a total of 965 decamer primers, was used to identify polymorphic markers between resistant (BW553) and susceptible ('Neepawa') near-isogenic lines. Primer 196 (5′ CTC CTC CCC C 3′) produced a 590 base pair (bp) reproducible fragment only in the resistant near-isogenic line. The 590-bp DNA fragment was present in all the 22 wheat cultivars known to carry the Bt-10 resistance gene and also in 15 resistant F2 lines obtained from a cross between the resistant parent, BW553, and the susceptible parent, 'Neepawa'. The 590-bp fragment was absent in 16 susceptible cultivars tested and in 15 susceptible F2 lines obtained from the cross described above. These results suggest a close linkage between the presence of the 590-bp fragment and the Bt-10 resistance gene. Primer 372 (5′ CCC ACT GAC G 3′) amplified a 1.0-kilobase (kb) fragment that was present only in the susceptible near-isogenic line. This 1.0-kb fragment was present in 13 of the 16 susceptible cultivars and in 13 of the 15 susceptible F2 lines. However, the primer also amplified the 1.0-kb fragment in some resistant cultivars and resistant F2 lines, suggesting a looser linkage between the occurrence of the fragment and the susceptible allele. Key words : RAPD, primer, Bt-10 bunt resistance gene, wheat, marker.

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48

Zimmerman, P. A., N. Lang-Unnasch, and C. A. Cullis. "Polymorphic regions in plant genomes detected by an M13 probe." Genome 32, no. 5 (October 1, 1989): 824–28. http://dx.doi.org/10.1139/g89-517.

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Анотація:

A sequence containing two clusters of 15 base pair repeats from the protein III gene in the bacteriophage M13 has been shown to detect hypervariable minisatellites in many animal species. We have shown that this M13 fragment will detect similar sequences in higher plants including monocots, dicots, and gymnosperms. In addition, polymorphisms were demonstrated in three dicot species. The amount of this sequence has no relationship with the size of the genome, chromosome number, or amount of repetitive DNA in the species tested.Key words: bacteriophage M13, monocot, dicot, gymnosperm, restriction fragment length polymorphism.

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49

Curran, J., D. L. Baillie, and J. M. Webster. "Use of genomic DNA restriction fragment length differences to identify nematode species." Parasitology 90, no. 1 (February 1985): 137–44. http://dx.doi.org/10.1017/s0031182000049088.

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Анотація:

Restriction endonuclease digestion of genomic DNA generates DNA fragments of unique size, dependent upon the particular base sequence. Following fractionation by agarose gel electrophoresis, repetitive DNA can be visualized as distinct bands in stained gels and the restriction fragment length of such bands used as diagnostic characters. Restriction fragment length differences were detected between species within the genera Trichinella, Caenorhabditis, Romanomermis, Steinernema (syn. Neoaplectana) and Meloidogyne. This technique provides a new tool for the taxonomist, which is independent of phenotypic variation and it enables the rapid and reliable separation of closely related species.

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50

Ben-Levy, R., O. Faktor, I. Berger, and Y. Shaul. "Cellular factors that interact with the hepatitis B virus enhancer." Molecular and Cellular Biology 9, no. 4 (April 1989): 1804–9. http://dx.doi.org/10.1128/mcb.9.4.1804.

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Анотація:

An 83-base-pair-long hepatitis B virus DNA fragment efficiently activates the transcription of the heterologous globin gene promoter. This fragment contains binding sites for at least four distinct cellular factors termed E, TGT3, EP, and NF-I. E is a positively acting factor, responsive to phorbol ester. EP is apparently identical to the factor EF-C that binds to the polyomavirus enhancer. The conservation of the binding site sequences for most of these factors in the genomes of other members of the hepadnavirus family suggests that these viruses share common enhancer elements.

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