• Title/Summary/Keyword: duplication

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Prenatally Diagnosed Gastric Duplication - Case report - (산전진단된 위중복증 - 증례 보고-)

  • Kang, Ki-Kwan;Hong, Jeong
    • Advances in pediatric surgery
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    • v.18 no.1
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    • pp.35-40
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    • 2012
  • Gastric duplication is a rare anomaly which account for only 3.8% of all gastrointestinal duplication. Gastric duplications are usually cystic lesion without communication with lumen. Most frequent presentation is an abdominal mass with vomiting, mainly diagnosed within the first year of life. Surgical removal is necessary in all cases, and optimal timing for surgery is the time that diagnosis is made. However, prenatally diagnosed gastric duplication is getting more common, and determining timing for surgery is not easy due to absent or minimal symptoms just after birth. We experienced prenatally diagnosed gastric duplication in a female newborn baby that gastric duplication was suggested in $24^{th}$ week of gestational age through prenatal ultrasonogram. Surgical removal was done at 3 months after birth, and showed good results. We think that natural history of gastric duplication and prevalent age of surgical disease which is similar to gastric duplication such infantile hypertrophic pyloric stenosis should be considered when timing of surgery on prenatally gastric duplication is decided.

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Duplication with Task Assignment in Mesh Distributed System

  • Sharma, Rashmi;Nitin, Nitin
    • Journal of Information Processing Systems
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    • v.10 no.2
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    • pp.193-214
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    • 2014
  • Load balancing is the major benefit of any distributed system. To facilitate this advantage, task duplication and migration methodologies are employed. As this paper deals with dependent tasks (DAG), we used duplication. Task duplication reduces the overall schedule length of DAG along-with load balancing. This paper proposes a new task duplication algorithm at the time of tasks assignment on various processors. With the intention of conducting proposed algorithm performance computation; simulation has been done on the Netbeans IDE. The mesh topology of a distributed system is simulated at this juncture. For task duplication, overall schedule length of DAG is the main parameter that decides the performance of a proposed duplication algorithm. After obtaining the results we compared our performance with arbitrary task assignment, CAWF and HEFT-TD algorithms. Additionally, we also compared the complexity of the proposed algorithm with the Duplication Based Bottom Up scheduling (DBUS) and Heterogeneous Earliest Finish Time with Task Duplication (HEFT-TD).

Review on the Duplication of Modern Digital Art Works (현대 디지털 예술작품의 복제성에 대한 고찰)

  • Song, Dae-Sup;Ha, Im-Sung
    • Cartoon and Animation Studies
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    • s.17
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    • pp.205-218
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    • 2009
  • The duplication of art works has been made for wide distribution and profit from long time ago. With material duplication due to recent development of digital duplication media its concept was intervened in art works and the meaning gets expanded more. In this thesis, I will review on the concept of recently marked arts duplication connecting with modern mass culture, compare with duplication of machinery duplication era and research on the features to establish in new way. After all, the duplicational features of digital art works got deeply connected with the characteristics of generalized modern digital mass culture for duplication. In previous times old-fashioned machinery duplication such as pictures, woodblock prints and films played their roles as democratic and social value of art works and now it will be enough to say that the modern digital art works could be developed to be non-materialized factor of art works with the concept of duplication as well as duplication of objects just like previous cases. Besides duplicational factors derived spatial and emotional effects with visional sympathy in existing machinery duplication era and could have verified that the object for duplication was transferred from minor commercial producers to major audience.

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a Design of Duplication Module in Linux (리눅스의 이중화 모듈 설계)

  • 정상진;한상숙;은성배
    • Proceedings of the IEEK Conference
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    • 2003.07c
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    • pp.2855-2858
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    • 2003
  • In this paper, we have studied a design method to make Linux system enriched with a duplication facility. We have designed a duplication module which would be inserted into Linux. The design have to keep track of three foundations, such as fault detection, reconfiguration, a handling duplication data. To conclude, Linux duplication module is free put on a Linux kernel. so in the future, It can cope with a change in Linux duplication system flexiblely.

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A Cloacal Exstrophy Variant Associated with Hindgut Duplication (후장중복증을 동반한 변형 총배설강외반증)

  • Lee, Tae-Seok;Oh, Soo-Myung
    • Advances in pediatric surgery
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    • v.1 no.2
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    • pp.190-194
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    • 1995
  • Diphallus is a rare congenital anomaly and is frequently associated with duplication of the urinary tract and rectosigmoid, and commonly associated with vertebral anomalies. Remzi reported less than 100 cases of duplication of all or a portion of the penis, but about 10 cases of complete diphallus with exstrophy of cloaca was reported, and a case of complete diphallus associated with hindgut duplication was reported, and complete diphallus with displacement of bladder associated hindgut duplication and imperforate anus was not reported in Korea. We experienced a case of the complete diphallus associated with displacement of bladder, hindgut duplication, and imperforate anus as a variant of cloacal exstrophy. A review of published cases suggests that this may be the first example of a complete diphallus with displacement of bladder coexisting with the hindgut duplication and imperforate anus.

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Clinical Characteristics of Ureteral Duplication in Children

  • Park, Min Ji;Baek, Hee Sun;Jang, Hae Min;Lee, Jun Nyung;Chung, Sung Kwang;Jeong, Shin Young;Lee, So Mi;Cho, Min Hyun
    • Childhood Kidney Diseases
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    • v.23 no.2
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    • pp.100-104
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    • 2019
  • Purpose: Ureteral duplication is a relatively common congenital urinary tract abnormality that can be associated with various clinical problems such as vesicoureteral reflux (VUR), hydronephrosis, and ectopic ureters. The purpose of this study was to analyze the clinical characteristics of pediatric patients with recently diagnosed ureteral duplication and to identify any differences from those described in previous reports. Methods: We retrospectively reviewed the clinical characteristics and course of pediatric patients who were diagnosed with ureteral duplication between January 2008 and June 2017. Results: A total of 32 pediatric patients were diagnosed with ureteral duplication during the study period. The male to female ratio was 1:2.2. Twenty-seven patients (84.4%) were first diagnosed with ureteral duplication at less than 3 months of age, and 26 (81.3%) were first diagnosed by prenatal ultrasonography. Four of the 32 patients were diagnosed with bilateral ureteral duplication, for a total of 36 occurrences of ureteral duplication. In 17 occurrences of complete ureteral duplication (47.2%), other urinary tract anomalies were also found; namely, ureterocele (7), VUR (11), and ectopic ureter (5). However, none of the patients with incomplete ureteral duplication had ureterocele or VUR. Conclusions: With the advent of routine prenatal ultrasound, ureteral duplication is being diagnosed earlier than was previously possible, enabling timely treatment of the various accompanying urinary tract anomalies. Multicenter studies are needed to establish guidelines for standardized evaluation and treatment of ureteral duplication.

Tubular Colonic Duplication Presenting as Rectovestibular Fistula

  • Karkera, Parag J.;Bendre, Pradnya;D'souza, Flavia;Ramchandra, Mukunda;Nage, Amol;Palse, Nitin
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.18 no.3
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    • pp.197-201
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    • 2015
  • Complete colonic duplication is a very rare congenital anomaly that may have different presentations according to its location and size. Complete colonic duplication can occur in about 15% of all gastrointestinal duplications. Double termination of tubular colonic duplication in the perineum is even more uncommon. We present a case of a Y-shaped tubular colonic duplication which presented with a rectovestibular fistula and a normal anus. Radiological evaluation and initial exploration for sigmoidostomy revealed duplicated colons with a common vascular supply. Endorectal mucosal resection of theduplicated distal segment till the colostomy site with division of the septum of the proximal segment and colostomy closure proved curative without compromise of the continence mechanism. Tubular colonic duplication should always be ruled out when a diagnosis of perineal canal is considered in cases of vestibular fistula alongwith a normal anus.

The Replication Protein Cdc6 Suppresses Centrosome Over-Duplication in a Manner Independent of Its ATPase Activity

  • Kim, Gwang Su;Lee, Inyoung;Kim, Ji Hun;Hwang, Deog Su
    • Molecules and Cells
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    • v.40 no.12
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    • pp.925-934
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    • 2017
  • The Cdc6 protein is essential for the initiation of chromosomal replication and functions as a licensing factor to maintain chromosome integrity. During the S and G2 phases of the cell cycle, Cdc6 has been found to inhibit the recruitment of pericentriolar material (PCM) proteins to the centrosome and to suppress centrosome over-duplication. In this report, we analyzed the correlation between these two functions of Cdc6 at the centrosome. Cdc6 depletion increased the population of cells showing centrosome over-duplication and premature centrosome separation; Cdc6 expression reversed these changes. Deletion and fusion experiments revealed that the 18 amino acid residues (197-214) of Cdc6, which were fused to the Cdc6-centrosomal localization signal, suppressed centrosome over-duplication and premature centrosome separation. Cdc6 mutant proteins that showed defective ATP binding or hydrolysis did not exhibit a significant difference in suppressing centrosome over-duplication, compared to the wild type protein. In contrast to the Cdc6-mediated inhibition of PCM protein recruitment to the centrosome, the independence of Cdc6 on its ATPase activity for suppressing centrosome over-duplication, along with the difference between the Cdc6 protein regions participating in the two functions, suggested that Cdc6 controls centrosome duplication in a manner independent of its recruitment of PCM proteins to the centrosome.

A Case of Intra-Abdominal Esophageal Duplication Cyst (복강 내에 위치한 식도 중복성 낭종 1례)

  • Chung, Ju-Young;Park, Dong-Chul
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.4 no.2
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    • pp.224-227
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    • 2001
  • Esophageal duplication cysts are quite uncommon benign lesions of the esophagus that have previously been described as occurring only in the thoracic cavity. We experienced a rare case of completely intra-abdominal esophageal duplication cyst in a 10-year-old boy who has suffered from epigastric abdominal pain. Surgical excision is recommended at the time of cyst discovery whether symptoms present or not.

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A Set of Monozygotic Female Twins With Anal Canal Duplication (일란성 쌍둥이에서 발생한 항문관 중복증)

  • Choi, Soon-Ok
    • Advances in pediatric surgery
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    • v.9 no.2
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    • pp.117-120
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    • 2003
  • Anal canal duplications occurring in a pair of 4 month-old healthy female twins are presented. The openings were located in the posterior midline of the anus since birth without a history of perianal abscess or swelling. Excision of the duplicated anal canals was performed using posterior sagittal approach. Although the anal canal duplication occurs predominantly in female, to our knowledge, this is the first case of anal duplication in a monozygotic female twins reported.

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