WorldWideScience
 
 
1

Basilic vein transposition in the forearm for secondary arteriovenous fistula.  

Science.gov (United States)

Radiocephalic (RC) fistulae remain the first choice access for hemodialysis. The antecubital fossa is recommended as the next site. However, for some patients a basilic vein can be used to create an arteriovenous (av) fistula. We report a series of patients where the forearm basilic vein served as an alternative conduit for secondary procedures. Over an 8-year period, 30 patients who had a failed RC fistula underwent a basilic vein transposition. The immediate results were satisfactory. All fistulas were successfully cannulated. Cumulative patency was 93% after 1 year, 78% after 2 years, and 55% after 3 years. No ischemic or infectious complications were noted during the study period. The use of the forearm basilic vein to create a native av fistula appears to be a good alternative to procedures in the antecubital fossa or upper arm, thus preserving more proximal veins for future use. PMID:23599505

Glowinski, Jerzy; Glowinska, Irena; Malyszko, Jolanta; Gacko, Marek

2014-04-01

2

A Modified Technique of Basilic Vein Transposition for Haemodialysis  

International Nuclear Information System (INIS)

Objective: To modify the technique of basilic vein transposition for vascular accesss for haemodialysis aiming at better maturation rate, longer survival of fistula and lesser complications. Study Design: Case series. Place and Duration of Study: Shaikh Zayed Hospital and Omer Hospital, Lahore, from February 2008 to July 2011. Methodology: Patients referred for basilic vein transposition for haemodialysis vascular access were prospectively enrolled. The surgical technique included small tracking incisions, an extra 3 - 4 cm of vein length harvesting to avoid tension in the vein in its new course, an oval arteriotomy and a smooth curved pathway, away from vein harvesting incision to avoid entrapment of vein in the scar. Maturation rate, fistula survival and other complications were noted. Results: There was no immediate failure in 51 patients. The complications during follow-up period were infection and thrombosis, bleeding and non-development of basilic vein in 2 patients each; and false aneurysm formation in one. Four patients died during follow-up period. The maturation time was 4.9 A +- 1.1 weeks. The early patency rate was 92.2%, same at 6 months and 90.7% at 12 months. Conclusion: Arteriovenous fistula constructed with modified technique of basilic vein transposition is an acceptable and valid option of vascular access for haemodialysis. (author)

2014-01-01

3

Small incision basilic vein transposition technique: a good alternative to standard method.  

Science.gov (United States)

End-stage renal disease is a significant health problem. The primary use of the autogenous arteriovenous access is recommended by NKF-DOQI (National Kidney Foundation-Dialysis Outcomes Quality Initiative) guidelines. Though basilic vein transposition is well established in multiple failed fistulae's and obese patients, it requires large incision and morbidities like edema and infection. To avoid such compilations we, at our institution, adopted a small incision technique using two small 3-4 cm incisions. This method is inspired by videoendoscopic minimally invasive method used to dissect the basilic vein, thus avoiding extensive dissection and related morbidities. PMID:20535307

Veeramani, Muthu; Vyas, Jigish; Sabnis, Ravindra; Desai, Mahesh

2010-01-01

4

Small incision basilic vein transposition technique: A good alternative to standard method  

Digital Repository Infrastructure Vision for European Research (DRIVER)

End-stage renal disease is a significant health problem. The primary use of the autogenous arteriovenous access is recommended by NKF-DOQI (National Kidney Foundation-Dialysis Outcomes Quality Initiative) guidelines. Though basilic vein transposition is well established in multiple failed fistulae's and obese patients, it requires large incision and morbidities like edema and infection. To avoid such compilations we, at our institution, adopted a small incision technique using two small 3-4 c...

Veeramani, Muthu; Vyas, Jigish; Sabnis, Ravindra; Desai, Mahesh

2010-01-01

5

Transposição da Veia Basílica: um contributo para a melhoria da técnica cirúrgica Basilic Vein Transposition: improvement of the surgical technique  

Directory of Open Access Journals (Sweden)

Full Text Available Introdução: O aumento crescente da população em hemodiálise tem implicado o recurso a acessos vasculares de maior complexidade técnica. A introdução de modificações na técnica cirúrgica da transposição da veia basílica (TVB pretende agilizar o procedimento e diminuir a sua morbilidade. Métodos: Análise prospectiva das TVB efectuadas no CHP-HSA entre Setembro de 2005 e Setembro de 2009. Resultados: Efectuaram-se 74 TVB em 74 doentes, os quais tinham, em média, 2 acessos autólogos prévios. A TVB foi o primeiro acesso em 20,3% dos doentes. O intervalo médio de seguimento foi de 14,5 meses. Ocorreram 2 falências nos primeiros 30 dias. A taxa de patência secundária aos 3, 12 e 24 meses foi de 95,7%, 85,1% e 62,2%, respectivamente. A Diabetes associou-se a pior taxa de patência (p=0,018. A taxa de complicações perioperatórias foi de 28,4%, sendo a infecção a mais frequente (n=6, 8,1% do total de TVB. A trombose foi a principal causa de falência, tendo ocorrido em 24,3% de todas as TVB. Conclusões: Reconhece-se a superioridade do acesso autólogo, como a melhor opção de acesso vascular para hemodiálise. A TVB é subutilizada, devido às exigências técnicas e necessidades logísticas. Melhoramos a técnica cirúrgica e de tunelização, ao reduzir o tamanho das incisões e o tempo cirúrgico. Os nossos resultados revelaram uma boa patência a longo prazo, pelo que consideramos que deve ser mais utilizada.Introduction: The expanding haemodialysis population has lead to increased requirement for more complex vascular accesses. Modifications introduced in basilic vein transposition technique are intended to streamline the procedure and reduce its morbidity. Methods: All patients who underwent BVT from September 2005 to September 2009 in CHP-HSA were prospectively reviewed. Results: Seventy-four BVT were performed in 74 patients. Patients had a mean of 2.0 previous access attempts. BVT was the first access in 20.3% of the patients. Median follow-up was 14.5 months. There were two primary failures. Secondary patency rates were 95.7%, 85.1% and 62.2% at 3, 12 and 24 months, respectively. Diabetes was associated with poor patency. Perioperative complication rate was 28.4%, with infection being the most frequent (n=6, 8.1% of all TVB. Thrombosis was the main cause of failure, occurring in 24.3% of all TVB. Conclusion: Autologous access superiority is well established. BVT is an underused technique due to its surgical expertise needs and logistic demands. We improved the surgical technique and the tunneling technique, reducing the size of the incisions and the time of operation. Our results showed a good secondary patency rate and, in the authors view, this technique should be more widely used.

Norton de Matos

2012-09-01

6

Transposição da Veia Basílica: um contributo para a melhoria da técnica cirúrgica / Basilic Vein Transposition: improvement of the surgical technique  

Scientific Electronic Library Online (English)

Full Text Available SciELO Portugal | Language: Portuguese Abstract in portuguese Introdução: O aumento crescente da população em hemodiálise tem implicado o recurso a acessos vasculares de maior complexidade técnica. A introdução de modificações na técnica cirúrgica da transposição da veia basílica (TVB) pretende agilizar o procedimento e diminuir a sua morbilidade. Métodos: Aná [...] lise prospectiva das TVB efectuadas no CHP-HSA entre Setembro de 2005 e Setembro de 2009. Resultados: Efectuaram-se 74 TVB em 74 doentes, os quais tinham, em média, 2 acessos autólogos prévios. A TVB foi o primeiro acesso em 20,3% dos doentes. O intervalo médio de seguimento foi de 14,5 meses. Ocorreram 2 falências nos primeiros 30 dias. A taxa de patência secundária aos 3, 12 e 24 meses foi de 95,7%, 85,1% e 62,2%, respectivamente. A Diabetes associou-se a pior taxa de patência (p=0,018). A taxa de complicações perioperatórias foi de 28,4%, sendo a infecção a mais frequente (n=6, 8,1% do total de TVB). A trombose foi a principal causa de falência, tendo ocorrido em 24,3% de todas as TVB. Conclusões: Reconhece-se a superioridade do acesso autólogo, como a melhor opção de acesso vascular para hemodiálise. A TVB é subutilizada, devido às exigências técnicas e necessidades logísticas. Melhoramos a técnica cirúrgica e de tunelização, ao reduzir o tamanho das incisões e o tempo cirúrgico. Os nossos resultados revelaram uma boa patência a longo prazo, pelo que consideramos que deve ser mais utilizada. Abstract in english Introduction: The expanding haemodialysis population has lead to increased requirement for more complex vascular accesses. Modifications introduced in basilic vein transposition technique are intended to streamline the procedure and reduce its morbidity. Methods: All patients who underwent BVT from [...] September 2005 to September 2009 in CHP-HSA were prospectively reviewed. Results: Seventy-four BVT were performed in 74 patients. Patients had a mean of 2.0 previous access attempts. BVT was the first access in 20.3% of the patients. Median follow-up was 14.5 months. There were two primary failures. Secondary patency rates were 95.7%, 85.1% and 62.2% at 3, 12 and 24 months, respectively. Diabetes was associated with poor patency. Perioperative complication rate was 28.4%, with infection being the most frequent (n=6, 8.1% of all TVB). Thrombosis was the main cause of failure, occurring in 24.3% of all TVB. Conclusion: Autologous access superiority is well established. BVT is an underused technique due to its surgical expertise needs and logistic demands. We improved the surgical technique and the tunneling technique, reducing the size of the incisions and the time of operation. Our results showed a good secondary patency rate and, in the authors view, this technique should be more widely used.

Matos, Norton de; Nogueira, Clara; Queirós, José; Silva, Fernanda; Rocha, Sofia; Azevedo, Pedro; Machado, Rui; Mendonça, Mergulhão.

7

Strategies for the creation and maintenance of reconstructed arteriovenous fistulas using the forearm basilic vein.  

Science.gov (United States)

Reconstruction of an arteriovenous fistula (AVF) after an initial failure to provide long-term patency has been desired in the era when hemodialysis patients' prognosis is improving. The forearm basilic vein AVF should be considered, before an artificial graft shunt or an AVF in the cubital region. The present study was designed to establish a strategy for the creation and maintenance of AVFs using the forearm basilic vein. This study reviewed 76 cases of reconstructed AVF including 18 cases using the basilic vein (23.7% of total cases). The following four points were considered: arm positioning of the cubital flexion position combined with the forearm supinated position; several small skin incisions with a subcutaneous tunnel; sufficient venous dilatation using Fogarty balloon catheter; and early percutaneous angioplasty introduction for immature AVF. The primary and secondary patency rates were examined. A radiobasilic AVF was created through a subcutaneous tunnel in two cases. The primary and secondary patency rates of AVF with the basilic vein were 54.7% and 76.7% respectively, whereas those of AVF with the cephalic vein were 49.3% and 71.3%. The basilic was not inferior to the cephalic vein (P-value of the log-rank test for primary and secondary patency rates were 0.927 and 0.811, respectively). Early stage percutaneous angioplasty was effective in five cases with immature AVF. The forearm basilic vein was useful in AVF reconstruction and equivalent to radiocephalic reconstruction. Careful observation and percutaneous angioplasty during the early period after the surgery were essential for long-term patency. PMID:24107279

Kumano, Shintaro; Itatani, Keiichi; Shiota, Jun; Gojo, Satoshi; Izumi, Naoki; Kasahara, Hitoshi; Homma, Yukio; Tagawa, Hitoshi

2013-10-01

8

Percutaneous closure of a perimembranous ventricular septal defect through arm approach (radial artery and basilic vein).  

Science.gov (United States)

We report a case of percutaneous closure of a congenital perimembranous ventricular septal defect (VSD) performed via a radial artery and basilic vein accesses. We further discuss the technique, advantages, and limitation of this innovative approach for perimembranous VSD closure. PMID:24517545

Sanghvi, Kintur; Selvaraj, Nemalan; Luft, Ulrich

2014-04-01

9

Balloon atrial septostomy through internal jugular vein in a 45-day-old child with transposition of great arteries  

Directory of Open Access Journals (Sweden)

Full Text Available Balloon atrial septostomy is a common palliative procedure in D-transposition of great arteries. It is technically easy before 2-3 weeks of age when the septum primum is thin. Femoral vein or umbilical vein, when available, is the common access used for this procedure. In situations when these accesses are not available or in case of inferior vena cava interruption, trans-hepatic access is used. Internal jugular vein (IJV access is not used as it is difficult to enter the left atrium through this route. We describe a case of successful Balloon atrial septostomy done through IJV in a 45-day-old child with emphasis on the technique, hardware and precautions necessary during the procedure.

Padhi Sumanta

2010-01-01

10

Prophylactic distal revascularization and interval ligation procedure during femoral vein transposition fistula creation in patients at high risk for ischemic complications.  

Science.gov (United States)

Femoral vein transposition arteriovenous fistula (FVt AVF) is a viable autologous option when upper extremity dialysis access sites have become compromised. High volume flow through the AVF can lead to ischemic complications, including steal syndrome (SS), and may threaten access and limb viability. Risk factors for SS include: age >60 years, female sex, diabetes, atherosclerosis, hypertension, and previous limb procedures. Two dialysis patients, who were at high risk for SS in their lower extremities as assessed during the preoperative evaluation for an elective FVt AVF, had a distal revascularization and interval ligation (DRIL) procedure concurrently performed. At 42 and 24 months from their respective surgeries, both patients are reliably using their lower extremity autologous access sites and have not developed any signs or symptoms of ischemia. DRIL may represent an effective surgical strategy that can prophylactically be used to minimize the incidence of ischemic complications during FVt AVF in carefully selected, high-risk patients. PMID:23498320

Nader, Zamani; Anaya-Ayala, Javier E; Ismail, Nyla; Davies, Mark G; Peden, Eric K

2013-04-01

11

Cavo-portal transposition in rat: a new simple model  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Liver transplantation in presence of diffuse portal vein thrombosis is possible by using caval blood as portal inflow, through cavo-portal transposition. However, clinical results are heterogeneous and experimental studies are needed, but similar hemodynamic conditions are difficult to obtain, especially in small animals. Herein we describe a new simple model of cavo-portal transposition in rat. Methods Spontaneous porto-systemic shunts are induced by subcutaneous transposition of the spleen. The presence of porto-caval shunts through the spleen permits the interruption of the main portal vein without splanchnic hemodynamic consequences. Cavo-portal transposition is achieved by anastomosing the inferior vena cava and the main portal vein after division of the pancreatic-duodenal vein. Results Selective angiography revealed total splanchnic blood diversion to the systemic venous circulation through the neoformed collaterals; macroscopical examination showed the absence of any signs of acute portal hypertension with normal liver and gut appearance. Conclusion This model of cavoportal transposition is simple, effective and it simulates the clinical hemodynamic condition since the porto-systemic shunts induced by splenic subcutaneous transposition correspond to the physiological inframesocolic collaterals during chronic portal thrombosis in man.

Andorno Enzo

2007-08-01

12

Array Transposition in SSD.  

Science.gov (United States)

One obstacle to running very large two- and three-dimensional codes on the Cray X-MP and Y-MP systems is to efficiently perform array transpositions using SSD storage. This article discusses how such transpositions can be performed by means of algorithms ...

D. H. Bailey

1998-01-01

13

Sorting by Transpositions is Difficult  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In comparative genomics, a transposition is an operation that exchanges two consecutive sequences of genes in a genome. The transposition distance between two genomes, that is, the minimum number of transpositions needed to transform a genome into another, is, according to numerous studies, a relevant evolutionary distance. The problem of computing this distance when genomes are represented by permutations is called the Sorting by Transpositions problem (SBT), and has been introduced by Bafna...

Bulteau, Laurent; Fertin, Guillaume; Rusu, Irena

2012-01-01

14

Transposition of cephalic vein to rescue hemodialysis access arteriovenous fistula and treat symptomatic central venous obstruction / Transposição de veia cefálica para salvamento de fístula arteriovenosa de hemodiálise e tratamento de obstrução venosa central sintomática  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese Sabemos que estenose ou obstrução venosa central ocorre em 20 a 50% dos pacientes que são submetidos à colocação de cateter em veias centrais. Nos pacientes que realizam hemodiálise pelos membros superiores, este problema causa sintomas debilitantes e um grande risco de perda do acesso para hemodiál [...] ise. Relatamos um caso atípico de tratamento em um paciente dialítico com múltiplas comorbidades, queixa de dor e edema severo do membro superior direito (MSD), escassas alternativas de acessos vasculares para hemodiálise e fístula braquiobasílica funcionante do MSD associada à severa hipertensão venosa deste membro, secundária à oclusão venosa central da veia jugular interna e do tronco braquiocefálico direito. O tratamento cirúrgico alternativo foi a transposição da veia cefálica do MSD, formando colar venoso na região cervical anterior, resultando em um bypass sobre o sítio venoso ocluído. Para isso, realizamos a dissecção da veia cefálica no braço direito até a sua junção com a veia axilar, devalvulamos e anastomosamos a veia cefálica na veia jugular externa contralateral, permitindo a drenagem venosa do MSD, aliviando os sintomas da hipertensão venosa e mantendo a fístula braquiobasílica funcionante. Abstract in english It is known that stenosis or central venous obstruction affects 20 to 50% of patients who undergo placement of catheters in central veins. For patients who are given hemodialysis via upper limbs, this problem causes debilitating symptoms and increases the risk of loss of hemodialysis access. We repo [...] rt an atypical case of treatment of a dialysis patient with multiple comorbidities, severe swelling and pain in the right upper limb (RUL), few alternative sites for hemodialysis vascular access, a functioning brachiobasilic fistula in the RUL and severe venous hypertension in the same limb, secondary to central vein occlusion of the internal jugular vein and right brachiocephalic trunk. The alternative surgical treatment chosen was to transpose the RUL cephalic vein, forming a venous necklace at the anterior cervical region, bypassing the site of venous occlusion. In order to achieve this, we dissected the cephalic vein in the right arm to its junction with the axillary vein, devalved the cephalic vein and anastomosed it to the contralateral external jugular vein, providing venous drainage to the RUL, alleviating symptoms of venous hypertension and preserving function of the brachiobasilic fistula.

Felipe Jose, Skupien; Ricardo Zanetti, Gomes; Emerson Hideyoshi, Shimada; Rafael Inacio, Brandao; Suellen Vienscoski, Skupien.

15

Varicose Veins  

Medline Plus

Full Text Available ... varicose veins. It is essential that the veins not visible on the skin’s surface are evaluated. Commonly, a deeper vein called the saphenous vein is not working properly, causing the discomfort and varicose veins. ...

16

Compositions of random transpositions  

CERN Document Server

Let $Y=(y_1,y_2,...)$, $y_1\\ge y_2\\ge...$, be the list of sizes of the cycles in the composition of $c n$ transpositions on the set $\\{1,2,...,n\\}$. We prove that if $c>1/2$ is constant and $n\\to\\infty$, the distribution of $f(c)Y/n$ converges to PD(1), the Poisson-Dirichlet distribution with paramenter 1, where the function $f$ is known explicitly. A new proof is presented of the theorem by Diaconis, Mayer-Wolf, Zeitouni and Zerner stating that the PD(1) measure is the unique invariant measure for the uniform coagulation-fragmentation process.

Schramm, O

2004-01-01

17

Re-reading and rehabilitating Basil Bernstein  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This article constitutes a re-reading of and an attempt to rehabilitate Basil Bernstein, both of which are important in light of the interpretation of Bernstein as a proponent of the verbal deficit view, and the general discrediting of his work on social class differences in the British educational system, as related to what he later called ‘codes’, by scholars like Jensen (Social class and verbal learning, Holt, 1968) and Labov (The logic of non-standard English, Georgetown University Pr...

2009-01-01

18

Spider Veins  

Science.gov (United States)

... Scars Skin Growths Spider Veins Unwanted Hair Unwanted Tattoos Varicose Veins Wrinkled Skin Treatments and Procedures Ambulatory ... Scars Skin Growths Spider Veins Unwanted Hair Unwanted Tattoos Varicose Veins Wrinkled Skin Treatments and Procedures Ambulatory ...

19

Varicose Veins  

Medline Plus

Full Text Available Varicose Veins and Surgery Introduction Varicose veins are very common, in both women and men. Varicose veins can be painful and unattractive. Vein doctors use non-invasive ultrasound imaging to find ...

20

Antioxidant properties of various solvent extracts from purple basil  

Science.gov (United States)

Water, ethanol and acetone extracts from leaves and flowers of purple basil, one of the most popular spices consumed in the Thrace region of Turkey, were tested in vitro for their ability to inhibit peroxidation of lipids, to scavenge DPPH, hydrogen peroxide, superoxide anion, to reduce Fe(III) to Fe(II) and to chelate Fe(II) ions. The results showed that purple basil contained naturally occurring antioxidant components and possessed antioxidant activity which may be attributed to its lipid peroxidation inhibitory, radical scavenging and metal chelating activities. It was concluded that purple basil might be a potential source of antioxidants.

Ye?ilo?lu, Ye?im; ?it, Latif?ah

2012-09-01

 
 
 
 
21

Varicose Veins  

Medline Plus

Full Text Available ... Varicose veins can be painful and unattractive. Vein doctors use non-invasive ultrasound imaging to find the ... also need to be corrected. With ultrasound imaging, doctors may recommend treatment to correct the varicose veins ...

22

String comparison by transposition networks  

CERN Multimedia

Computing string or sequence alignments is a classical method of comparing strings and has applications in many areas of computing, such as signal processing and bioinformatics. Semi-local string alignment is a recent generalisation of this method, in which the alignment of a given string and all substrings of another string are computed simultaneously at no additional asymptotic cost. In this paper, we show that there is a close connection between semi-local string alignment and a certain class of traditional comparison networks known as transposition networks. The transposition network approach can be used to represent different string comparison algorithms in a unified form, and in some cases provides generalisations or improvements on existing algorithms. This approach allows us to obtain new algorithms for sparse semi-local string comparison and for comparison of highly similar and highly dissimilar strings, as well as of run-length compressed strings. We conclude that the transposition network method is...

Krusche, Peter

2009-01-01

23

Preoperative noninvasive assessment of arm veins to be used as bypass grafts in the lower extremities.  

Science.gov (United States)

Preoperative noninvasive imaging of the veins of the upper extremities has been included in the protocol to select an autogenous vein for a distal bypass in the lower extremity. Arm veins are sought as bypass grafts when the saphenous vein is absent or not usable. Duplex ultrasound provided images of the cephalic and basilic veins in 10 patients in whom visual inspection failed to reveal usable grafts. All arm veins implanted were at least 2 mm (range 2 to 6 mm) in internal diameter determined by ultrasound and were, on the average, 2 mm larger when unroofed. This noninvasive technique has decreased the number of fruitless surgical explorations to obtain a suitable arm vein and has increased the use of arm veins by revealing veins previously not anticipated by physical examination, which virtually eliminated the use of nonautogenous conduits in our practice. PMID:3517389

Salles-Cunha, S X; Andros, G; Harris, R W; Dulawa, L B; Oblath, R W

1986-05-01

24

Transposition of inferior vena cava  

International Nuclear Information System (INIS)

An incidentally detected transposition of the inferior vena cava in patient with gall bladder carcinoma is reported with discussion of findings of CT scan and review of anomalies of the inferior vena cava. Since anomalous vena cava may simulate any other abnormality such as metastatic disease, it is very important to know anomaly of the vena cava with understanding of its embryological background.

1986-08-01

25

Transposition of inferior vena cava  

Energy Technology Data Exchange (ETDEWEB)

An incidentally detected transposition of the inferior vena cava in patient with gall bladder carcinoma is reported with discussion of findings of CT scan and review of anomalies of the inferior vena cava. Since anomalous vena cava may simulate any other abnormality such as metastatic disease, it is very important to know anomaly of the vena cava with understanding of its embryological background.

Seung, In Don; Kim, Yang Soo; Kim, Kun Sang [Chung-Aug University, Seoul (Korea, Republic of)

1986-08-15

26

Utilization of Basil Extract as a Radioprotector in Male Rats  

International Nuclear Information System (INIS)

Man is exposed to natural radiations from cosmic or terrestrial origins. Furthermore, it is well known that the gamma irradiation-induced biochemical alteration depends mostly on oxidative stress. Basil or sweet basil (Ocimum basilicum) is known to have numerous pharmacological activities. Therefore, the present study was carried out to investigate the radioprotective activity of basil in albino rats. The effect of basil aqueous extract (BAE) was evaluated on hepatic marker enzymes, sex hormones, lipid profile and antioxidant status. The results showed that - rays caused a significant increase in serum level of alanine and aspartate aminotransferase, alkaline phosphatase, gamma glutamyl transpeptidase (ALT, AST, ALP and GT), cholesterol (TC), triglyceride (TG), low and very low density lipoprotein cholesterol (LDL-C and VLDL-C) and thiobarbituric acid reactive substances (TBARS). A significant decrease in high density lipoprotein cholesterol (HDL-C), reduced glutathione (GSH), superoxide dismutase (SOD) and catalase (CAT) in serum was observed, compared with control group. Moreover, - rays induced a significant drop in the serum sex hormones levels testosterone (T), follicle stimulating hormone (FSH) and luteinizing hormone (LH). The BAE administered orally to rats has significantly modulated all the radiation-induced biochemical alterations. These findings showed that basil would exert a radioprotective properties.

2013-01-01

27

Intrahepatic Transposition of Bile Ducts  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Objective. To describe the intrahepatic bile duct transposition (anatomical variation occurring in intrahepatic ducts) and to determine the frequency of this variation. Material and Methods. The researches were performed randomly on 100 livers of adults, both sexes. Main research methods were anatomical macrodissection. As a criterion for determination of variations in some parts of bile tree, we used the classification of Segmentatio hepatis according to Couinaud (1957) according to Terminol...

Delic?, Jasmin; Savkovic?, Admedina; Isakovic?, Eldar; Markovic?, Sergije; Bajtarevic, Alma; Denjalic?, Amir

2012-01-01

28

Varicose Veins  

Medline Plus

Full Text Available ... essential that the veins not visible on the skin’s surface are evaluated. Commonly, a deeper vein called ... pain and aching, and complaints of tired legs. Skin changes, ulceration and phlebitis are all possible with ...

29

Varicose Veins  

Medline Plus

Full Text Available ... Reference Summary Introduction Varicose veins are very common, in both women and men. Varicose veins can be ... on one-way valves to keep blood moving in an upward motion. This document is a summary ...

30

Varicose Veins  

Medline Plus

Full Text Available ... enlarge. Heredity is the primary cause of the development of varicose veins. Pregnancy, obesity, hormonal influences, and ... sitting or standing, can also contribute to the development of varicose veins. This document is a summary ...

31

Varicose Veins  

Medline Plus

Full Text Available ... symptoms, treatment may be recommended. Varicose Vein Treatment New techniques allow for a virtually painless correction of ... for safer, less expensive and superior cosmetic result. New methods have less chance of deep vein thrombosis ...

32

Varicose Veins  

Medline Plus

Full Text Available ... needs to treat your varicose veins, and their source, giving long-lasting results. More recent techniques such as Endovenous Ablation allow for safer, less expensive and superior cosmetic result. New methods have less chance of deep vein thrombosis ...

33

Antioxidant capacity and phenolic content of holy basil  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The antioxidant capacity of white and red holy basil leaves (Ocimum sanctum Linn., white and red varieties) from fresh markets in Chiang Mai was estimated by three different methods; ferric reducing antioxidant power (FRAP) assay, improved ABTS radical cation decolorization assay, and DPPH free radical scavenging activity; together with their total phenolic contents. Water and 95% ethanol ratios of extraction solvents were also studied, and it was found that 57 and 76% ethanol solvents were m...

2007-01-01

34

Effects of biocides on chlorophyll contents of detached basil leaves  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Herbicides and insecticides have been widely and intensively used in agricultural areas worldwide to enhance crop yield. However, many biocides cause serious environmental problems. In addition, the biocides may also have some effects on the treated agricultural crops. To study effects of biocides on chlorophyll content in detached basil leaves, 2,4-D dimethylamine salt (2,4 D-Amine), paraquat, carbosulfan, and azadirachtin, were chosen as representatives of biocide. After applying the chemic...

2013-01-01

35

Maxillary canine-to-maxillary incisor transposition.  

Science.gov (United States)

Dental transposition is the positional interchange of two adjacent teeth. Canine transpositions are usually accompanied by other dental anomalies, such as: impaction of the incisors; missing teeth; peg-shaped lateral incisors; severe rotation or malposition of adjacent teeth; dilacerations; and malformations. Local pathologic processes, such as tumors, cysts, retained primary canines, and supernumerary teeth, might be responsible for canine transposition. The purpose of this paper was to present a rare case of maxillary canine-to-maxillary incisor transposition in an 8-year-old girl. The patient presented with noneruption of the permanent maxillary left central incisor, and a radiographic examination revealed an impacted dilacerated incisor. The central incisor was extracted because the root was severely dilacerated. At the 3-year follow-up, an oral examination revealed that the canine had transposed to the extraction site. Through orthodontic traction, combined with reshaping of the tooth, the transposed canine was successfully positioned into the incisor position. PMID:24290551

Lin, Yng-Tzer J

2013-01-01

36

Transposition of the Greater Arteries (TGA)  

Science.gov (United States)

... MD Copyright © 2012 STS Transposition of Greater Arteries (TGA) is the most common form of congenital heart ... appears blue. Why do the surgery? Infants with TGA need surgery within the first few weeks of ...

37

Antioxidant capacity and phenolic content of holy basil  

Directory of Open Access Journals (Sweden)

Full Text Available The antioxidant capacity of white and red holy basil leaves (Ocimum sanctum Linn., white and red varieties from fresh markets in Chiang Mai was estimated by three different methods; ferric reducing antioxidant power (FRAP assay, improved ABTS radical cation decolorization assay, and DPPH free radical scavenging activity; together with their total phenolic contents. Water and 95% ethanol ratios of extraction solvents were also studied, and it was found that 57 and 76% ethanol solvents were more suitable in this study. All three antioxidant capacity assays showed that red holy basil was higher in antioxidant capacity than white holy basil (p<0.05. ABTS values were higher than FRAP and DPPH values, respectively, because of their different mechanisms, but their significant correlation (p<0.01 expressed their similar trends. In addition, correlation between results of all antioxidant capacity and total phenolic content was found (p<0.01. ABTS values were highly correlated into the results of total phenolic content than were FRAP and DPPH values.

Wiwat Wangcharoen

2007-09-01

38

Varicose Veins  

Medline Plus

Full Text Available ... recommend treatment to correct the varicose veins and any underlying source. If your doctor recommends surgery, the ... doctor or healthcare professional or a recommendation for any particular treatment plan. Like any printed material, it ...

39

Varicose Veins  

Medline Plus

Full Text Available ... clots have formed in the deep vein system. Risks And Complications Bruising is common, and should resolve ... appointment. These procedures are very safe. There are risks, however, as no procedure is risk-free. Severe ...

40

Varicose Veins  

Medline Plus

Full Text Available ... medical and most insurance companies, including Medicare, will cover varicose vein treatment. Notice how the valves of ... stockings are not recommended, they should at least cover the thigh. This document is for informational purposes ...

 
 
 
 
41

Varicose Veins  

Medline Plus

Full Text Available ... openings, similar to the size of a freckle. Results are immediate; the body will begin the healing ... varicose veins, and their source, giving long-lasting results. More recent techniques such as Endovenous Ablation allow ...

42

Varicose Veins  

Medline Plus

Full Text Available ... procedure. Heat energy from a laser or radio frequency source is used to painlessly eliminate flow in ... vein thrombosis compared with older method such as high ligation and stripping. Finally the patient is more ...

43

Varicose Veins  

Medline Plus

Full Text Available ... no clots have formed in the deep vein system. Risks And Complications Bruising is common, and should ... of a doctor or healthcare professional or a recommendation for any particular treatment plan. Like any printed ...

44

Varicose Veins  

Medline Plus

Full Text Available ... allow specialists to fix varicose veins in an office setting, without a trip to the hospital. Saphenous ... MicroPhlebectomy. The phlebectomy is also performed in the office and under a local anesthetic. Small segments of ...

45

Varicose Veins  

Medline Plus

Full Text Available ... specialists to fix varicose veins in an office setting, without a trip to the hospital. Patients will be awake, without need for a general or spinal anesthetic. The entire procedure is performed ...

46

Varicose Veins  

Medline Plus

Full Text Available ... Patient comfort is monitored throughout the entire procedure. Heat energy from a laser or radio frequency source is used to painlessly eliminate flow in the affected vein. This is called Endovenous ...

47

Varicose Veins  

Medline Plus

Full Text Available ... safer, less expensive and superior cosmetic result. New methods have less chance of deep vein thrombosis compared with older method such as high ligation and stripping. Finally the ...

48

Prevalence of tooth transposition in Greek population.  

Directory of Open Access Journals (Sweden)

Full Text Available AIM: To investigate the prevalence of tooth transposition in a sample of Greek dental patients. STUDY DESIGN: Epidemiological study. TIME AND PLACE OF ACTION: Prefecture of Drama, time period 2001-2006. MATERIALS AND METHODS: The first author examined in her private practice 2034 consecutive patients seeking dental treatment. Patients with nationality other than Greek, individuals below 13 years of age with primary or mixed dentitions, patients without panoramic radiographs, patients with syndromes, as well as those who had more than one permanent tooth missing were excluded from the initial sample. In total, 1113 patients were assessed (288 men, 825 women with a mean age of 36.1 years (range: 13.1-73.0 years. MAIN MEASUREMENTS: Tooth transposition was investigated my means of clinical examination through observation and palpation, as well as with radiographic examination using panoramic radiographs. Results were analyzed with descriptive statistics. RESULTS: In total, only one case was found with tooth transposition presenting complete bilateral transposition between canine - lateral incisor in the maxilla. The percentage of patients with tooth transposition in the total dental population examined was 0.09%. The prevalence of this phenomenon in females was 0.12%, whereas in males it was 0%. Men / women ratio was found 0:1. CONCLUSIONS: Tooth transposition in Greek population is rather rare, it is most often encountered in females and concerns mostly maxillary canines and lateral incisors.

Maria Hatzoudi

2006-01-01

49

Rates of transposition in Escherichia coli.  

Science.gov (United States)

The evolutionary role of transposable elements (TEs) is still highly controversial. Two key parameters, the transposition rate (u and w, for replicative and non-replicative transposition) and the excision rate (e) are fundamental to understanding their evolution and maintenance in populations. We have estimated u, w and e for six families of TEs (including eight members: IS1, IS2, IS3, IS4, IS5, IS30, IS150 and IS186) in Escherichia coli, using a mutation accumulation (MA) experiment. In this experiment, mutations accumulate essentially at the rate at which they appear, during a period of 80 500 (1610 generations × 50 lines) generations, and spontaneous transposition events can be detected. This differs from other experiments in which insertions accumulated under strong selective pressure or over a limited genomic target. We therefore provide new estimates for the spontaneous rates of transposition and excision in E. coli. We observed 25 transposition and three excision events in 50 MA lines, leading to overall rate estimates of u ? 1.15 × 10(-5), w ? 4 × 10(-8) and e ? 1.08 × 10(-6) (per element, per generation). Furthermore, extensive variation between elements was found, consistent with previous knowledge of the mechanisms and regulation of transposition for the different elements. PMID:24307531

Sousa, Ana; Bourgard, Catarina; Wahl, Lindi M; Gordo, Isabel

2013-12-23

50

Transposition of the great arteries  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Transposition of the great arteries (TGA, also referred to as complete transposition, is a congenital cardiac malformation characterised by atrioventricular concordance and ventriculoarterial (VA discordance. The incidence is estimated at 1 in 3,500–5,000 live births, with a male-to-female ratio 1.5 to 3.2:1. In 50% of cases, the VA discordance is an isolated finding. In 10% of cases, TGA is associated with noncardiac malformations. The association with other cardiac malformations such as ventricular septal defect (VSD and left ventricular outflow tract obstruction is frequent and dictates timing and clinical presentation, which consists of cyanosis with or without congestive heart failure. The onset and severity depend on anatomical and functional variants that influence the degree of mixing between the two circulations. If no obstructive lesions are present and there is a large VSD, cyanosis may go undetected and only be perceived during episodes of crying or agitation. In these cases, signs of congestive heart failure prevail. The exact aetiology remains unknown. Some associated risk factors (gestational diabetes mellitus, maternal exposure to rodenticides and herbicides, maternal use of antiepileptic drugs have been postulated. Mutations in growth differentiation factor-1 gene, the thyroid hormone receptor-associated protein-2 gene and the gene encoding the cryptic protein have been shown implicated in discordant VA connections, but they explain only a small minority of TGA cases. The diagnosis is confirmed by echocardiography, which also provides the morphological details required for future surgical management. Prenatal diagnosis by foetal echocardiography is possible and desirable, as it may improve the early neonatal management and reduce morbidity and mortality. Differential diagnosis includes other causes of central neonatal cyanosis. Palliative treatment with prostaglandin E1 and balloon atrial septostomy are usually required soon after birth. Surgical correction is performed at a later stage. Usually, the Jatene arterial switch operation is the procedure of choice. Whenever this operation is not feasible, adequate alternative surgical approach should be implemented. With the advent of newer and improved surgical techniques and post operative intensive care, the long-term survival is approximately 90% at 15 years of age. However, the exercise performance, cognitive function and quality of life may be impaired.

Castela Eduardo

2008-10-01

51

Varicose Veins and Spider Veins  

Science.gov (United States)

... own and does not require any further treatment. • Wound infection, inflammation, swelling, and redness • Permanent scars • Damage ... there is no cure for weak vein valves. Ultrasound can be used to keep track of how ...

52

Antibacterial Activity of the Essential Oils of Sudanese Accessions of Basil (Ocimum basilicum L.  

Directory of Open Access Journals (Sweden)

Full Text Available This study is concerned with the evaluation of antibacterial activity of the essential oils of the most commonly grown ornamental-type basils (five types as well as that of wild-type basil which spontaneously grows in large pure stands during the rainy season. The essential oils of all six basil types showed strong antibacterial activity against E. coli, Staphylococcus aureus and Salmonella typhimurium. This activity was dose-dependent. Calculated LD50 values varied between 40 and 325 ?L of crude essential oil/well, for the three bacteria, using the agar well diffusion method. The crude essential oil of wild Sudanese basil, assayed by the disc diffusion method, had three TLC-separated compounds which were active against Salmonella typhimurium. One of these was identified as geraniol, a major constituent of the essential oil. Thus basil essential oil has potential clinical or food applications as an antibacterial agent.

A.H. Nour

2009-01-01

53

Extravascular perivenous fibrin support leads to aneurysmal degeneration and intimal hyperplasia in arterialized vein grafts in the rat  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Background and aims: External support of vein grafts by fibrin glue possibly prevents overdistension, vascular remodeling, and neointimal hyperplasia. Previous animal models of neointimal hyperplasia showed conflicting results. Here, long-term effects of external fibrin glue support were studied in a new rat model of jugular vein to abdominal aorta transposition. Materials and methods and methods: In male Wistar rats (250300 g) right jugular vein (1.01.5 cm) was transposed to the infrarenal a...

2009-01-01

54

Endoscopic ulnar nerve release and transposition.  

Science.gov (United States)

The most common site of ulnar nerve compression is within the cubital tunnel. Surgery has historically involved an open cubital tunnel release with or without transposition of the nerve. A comparative study has demonstrated that endoscopic decompression is as effective as open decompression and has the advantages of being less invasive, utilizing a smaller incision, producing less local symptoms, causing less vascular insult to the nerve, and resulting in faster recovery for the patient. Ulnar nerve transposition is indicated with symptomatic ulnar nerve instability or if the ulnar nerve is located in a "hostile bed" (eg, osteophytes, scarring, ganglions, etc.). Transposition has previously been performed as an open procedure. The authors describe a technique of endoscopic ulnar nerve release and transposition. Extra portals are used to allow retractors to be inserted, the medial intermuscular septum to be excised, cautery to be used, and a tape to control the position of the nerve. In our experience this minimally invasive technique provides good early outcomes. This report details the indications, contraindications, surgical technique, and rehabilitation of the endoscopic ulnar nerve release and transposition. PMID:24296546

Morse, Levi P; McGuire, Duncan T; Bain, Gregory I

2014-03-01

55

Transpositions and malpositions of the great arteries  

International Nuclear Information System (INIS)

The transposition of the great arteries afters to an abnormal connection and relation of the great arteries in which the aorta arises from the morphologic right ventricle and the pulmonary artery from the morphologic left ventricle, while the malposition of the great arteries indicates an abnormal relationship between the great arteries in which the great arteries are not transposed across the ventricular septum but they are malposed, as is seen in double outlet right ventricle, double outlet left ventricle and single ventricles. Transpositions and malpositions of the great arteries are understood as a spectrum of malformation caused by abnormal conal development and can be included in the common category of 'conotruncal malpositions'. Authors analized 32 cases of transpositions and malpositions of the great arteries in which cineangiocardiographies were done at the Department of Radiology, Seoul National University Hospital in recent 17 months, with specific references to the segmental combinations, the types of conus and the relations and courses of the great arteries. The results are as follows; 1. Cases included are 8 cases of complete transposition of the great arteries, 9 cases of corrected transposition of the great arteries, 12 cases of double outlet right ventricle, 1 case of anatomically corrected malposition of the great arteries, 1 cases of double inlet left ventricle and 1 case of double inlet right ventricle. 2. Types of conus are subaortic in 19 and bilateral in 13. In 19 cases with subaortic conus, 17 are transposition of the great arteries and 2 are double inlet left ventricle and double inlet right ventricle. In 13 cases with bilateral conus, 12 are double outlet right ventricle and 1 is anatomically corrected malposition of the great arteries. 3.High tendency of side-by-side interrelationship of semilunar valves is noted in cases with corrected transposition of the great arteries. But there is no characteristic tendency of side-by-side ro anterior-posterior semilunar interrelationship in cases with complete transposition of the great arteries and double outlet right ventricle. 4. There are two cases of exception to 'loop rule' 5. There are two cases of exception to 'visceroatrial concordance rule'. 6. Inappropriate position of aortic arch, i. e., right arch in situs solitus and left arch in situs inversus, is noted in 4 cases. 7. For more accurate diagnosis, selective biventriculography using biplane cineradiography is necessary

1980-12-01

56

Effects of biocides on chlorophyll contents of detached basil leaves  

Directory of Open Access Journals (Sweden)

Full Text Available Herbicides and insecticides have been widely and intensively used in agricultural areas worldwide to enhance crop yield. However, many biocides cause serious environmental problems. In addition, the biocides may also have some effects on the treated agricultural crops. To study effects of biocides on chlorophyll content in detached basil leaves, 2,4-D dimethylamine salt (2,4 D-Amine, paraquat, carbosulfan, and azadirachtin, were chosen as representatives of biocide. After applying the chemicals to detached basil leaves overnight in darkness, chlorophyll contents were determined. Only treatment with 2,4 D-Amine resulted in reduction of chlorophyll contents significantly compared to treatment with deionized (DI water. In the case of paraquat and carbosulfan, chlorophyll contents were not significantly changed, while slightly higher chlorophyll contents, compared to DI water, after the treatment with azadirachtin, were observed. The results indicated that 2,4 D-Amine shows an ability to accelerate chlorophyll degradation, but azadirachtin helps to retard chlorophyll degradation, when each biocide is used at the concentration recommended by the manufacturer.

Titima Arunrangsi

2013-06-01

57

Mutagen activated transposition of AhMITE1 in peanut  

International Nuclear Information System (INIS)

Mutations have played a significant role in peanut evolution and breeding. Miniature inverted repeat transposable elements (MITEs) with preferential transposition to low copy genes have been implicated in genome evolution leading to domestication in several crops. Genomic stresses are known to activate MITE transposition. Using PCR, we checked the transposition of a peanut MITE (AhMITE1) among several mutants derived through EMS mutagenesis and ?-irradiation. AhMITE1 was found to be activated by both these mutagens and the transposition was associated with the significant morphological changes even leading to altered botanical type. Transposition of AhMITE1 was also evident among spontaneous mutants. (author)

2009-10-01

58

Transposition of the great arteries in MRI  

International Nuclear Information System (INIS)

The contribution on transposition of the great arteries (TGA) in the heart NMR images covers the following issues: different forms of TGA (dextro-TGA and levo-TGA), therapeutic options, long-term complication of TGA and the importance of heart NMR imaging in case of TGA.

2014-02-01

59

Breaking The Rectangular Transposition Encryption System  

Science.gov (United States)

This applet, created by Kevin O'Bryant of the University of California - San Diego, illustrates the code breaking process entitled "Rectangular Transposition Encryption System." This interactive resource is fun, but still educational. It would be a perfect teaching tool for any classroom interested in statistics.

O\\'Bryant, Kevin

2009-01-05

60

Comparing the growth and flowering of selected basil (Ocimum basilicum L. varieties  

Directory of Open Access Journals (Sweden)

Full Text Available Investigations carried out in 2005-2006 related to the growth, flowering, and yielding of selected basil (Ocimum basilicum L. varieties. The most important biometric traits, number of days from sowing till flowering, size of fresh and air-dried herb weight, and essential oil content in dried material, were determined. Great morphological and developmental as well as chemical composition differentiation was found for studied basil varieties. Plants of 'Sweet' cv. were characterized by the largest height (53.4 cm and side shoot number (16, 'Lemon' - by the largest plant diameter (42.3 cm. The number of days till flowering depended on weather conditions and the variety, and it amounted from 44 to 126. Basil flowers were white, pink, and violet. Herb yield depended on the variety and growth conditions. Differences in the amount and yield of essential oil from basil were also recorded. The largest amounts of oil (1.55% were accumulated by 'Bush' cv.

Renata Nurzy?ska-Wierdak

2007-12-01

 
 
 
 
61

Essential oil composition from twelve varieties of basil (Ocimum spp grown in Colombia  

Directory of Open Access Journals (Sweden)

Full Text Available Essential oil compositions of aerial parts from twelve basil cultivars (Ocimum spp were analysed by gas chromatography-mass spectrometry (GC-MS. Ten of them were characterized by the presence of a high percentage of methyl cinnamate (35-80%, which defined the chemotype for these varieties. Only one presented the caryophyllene chemotype and another, the linalool chemotype. Three of the basils, "purple ruffles", "little virgin" and "purple virgin" exhibited the methyl cinnamate > linalool subtype. "White compact" and "white ruffles" showed the methyl cinnamate > linalool > 1,8-cineole subtype. Methyl cinnamate > methyl eugenol was the subtype for "purple castle". The variety "large green leaves" exhibited the linalool > methyl cinnamate subtype. Caryophyllene > methyl eugenol subtype was determined for "clove basil". The rest of the basils "cinnamon", "purple lovingly", "sweet castle" and "purple long-legged", belonged to the methyl cinnamate chemotype in which methyl cinnamate constituted more than 62% of the total essential oil content.

Viña Amparo

2003-01-01

62

First Cultivation Trials of Lemon Basil (Ocimum basilicum var. citriodorum) in Turkey  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Lemon basil is grown as a culinary herb, used fresh and dried in floral arrangements, and potpourris. In this research we studied essential oil component and herb and oil yields of commercial lemon basil grown in Mediterranean region of Turkey. Lemon basil were cultivated under €ukurova conditions in Turkey, and could be harvested 3 times at the full-flowering. In our conditions, harvest number increased four providing that earlier sowing is performed. Total fresh leaf yield and total dried...

Sezen Tansi; Sengul Nacar

2000-01-01

63

The transposition distance for phylogenetic trees  

CERN Document Server

The search for similarity and dissimilarity measures on phylogenetic trees has been motivated by the computation of consensus trees, the search by similarity in phylogenetic databases, and the assessment of clustering results in bioinformatics. The transposition distance for fully resolved phylogenetic trees is a recent addition to the extensive collection of available metrics for comparing phylogenetic trees. In this paper, we generalize the transposition distance from fully resolved to arbitrary phylogenetic trees, through a construction that involves an embedding of the set of phylogenetic trees with a fixed number of labeled leaves into a symmetric group and a generalization of Reidys-Stadler's involution metric for RNA contact structures. We also present simple linear-time algorithms for computing it.

Rossello, Francesc

2011-01-01

64

Database Transposition for Constrained (Closed) Pattern Mining  

CERN Multimedia

Recently, different works proposed a new way to mine patterns in databases with pathological size. For example, experiments in genome biology usually provide databases with thousands of attributes (genes) but only tens of objects (experiments). In this case, mining the "transposed" database runs through a smaller search space, and the Galois connection allows to infer the closed patterns of the original database. We focus here on constrained pattern mining for those unusual databases and give a theoretical framework for database and constraint transposition. We discuss the properties of constraint transposition and look into classical constraints. We then address the problem of generating the closed patterns of the original database satisfying the constraint, starting from those mined in the "transposed" database. Finally, we show how to generate all the patterns satisfying the constraint from the closed ones.

Jeudy, Baptiste

2009-01-01

65

Mammalian germ-line transgenesis by transposition  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Transposons have been used in invertebrates for transgenesis and insertional mutagens in genetic screens. We tested a functional transposon called Sleeping Beauty in the one-cell mouse embryo. In this report, we describe experiments in which transposon vectors were injected into one-cell mouse embryos with mRNA expressing the SB10 transposase enzyme. Molecular evidence of transposition was obtained by cloning of insertion sites from multiple transgenic mice produced by SB10 mRNA/transposon co...

Dupuy, Adam J.; Clark, Karl; Carlson, Corey M.; Fritz, Sabine; Davidson, Ann E.; Markley, Karra M.; Finley, Ken; Fletcher, Colin F.; Ekker, Stephen C.; Hackett, Perry B.; Horn, Sandra; Largaespada, David A.

2002-01-01

66

Pig transgenesis by Sleeping Beauty DNA transposition  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Modelling of human disease in genetically engineered pigs provides unique possibilities in biomedical research and in studies of disease intervention. Establishment of methodologies that allow efficient gene insertion by non-viral gene carriers is an important step towards development of new disease models. In this report, we present transgenic pigs created by Sleeping Beauty DNA transposition in primary porcine fibroblasts in combination with somatic cell nuclear transfer by handmade cloning...

Jakobsen, Jannik E.; Li, Juan; Kragh, Peter M.; Moldt, Brian; Lin, Lin; Liu, Ying; Schmidt, Mette; Winther, Kjeld D.; Schyth, Brian Dall; Holm, Ida E.; Vajta, Gabor; Bolund, Lars; Callesen, Henrik; Jørgensen, Arne L.; Nielsen, Anders L.

2011-01-01

67

Renal vein thrombosis  

Science.gov (United States)

Renal vein thrombosis is a blood clot that develops in the vein that drains blood from the kidney. ... Renal vein thrombosis is an uncommon disorder that may be caused by: Abdominal aortic aneurysm Clotting disorders Dehydration (mostly in infants) ...

68

Focus on Varicose Veins  

Science.gov (United States)

... ulcers at the ankles. Reflux in the largest superficial veins, such as the saphenous veins, is often an ... veins are always a sign of an underlying venous insufficiency disorder, whether symptomatic or not. Traditional treatments include ...

69

Corrected transposition of the great arteries  

International Nuclear Information System (INIS)

The corrected transposition of the great arteries is an usual congenital cardiac malformation, which consists of transposition of great arteries and ventricular inversion, and which is caused by abnormal development of conotruncus and ventricular looping. High frequency of associated cardiac malformations makes it difficult to get accurate morphologic diagnosis. A total of 18 cases of corrected transposition of the great arteries is presented, in which cardiac catheterization and angiocardiography were done at the Department of Radiology, Seoul National University Hospital between September 1976 and June 1981. The clinical, radiographic, and operative findings with the emphasis on the angiocardiographic findings were analyzed. The results are as follows: 1. Among 18 cases, 13 cases have normal cardiac position, 2 cases have dextrocardia with situs solitus, 2 cases have dextrocardia with situs inversus and 1 case has levocardia with situs inversus. 2. Segmental sets are (S, L, L) in 15 cases, and (I, D,D) in 3 cases and there is no exception to loop rule. 3. Side by side interrelationships of both ventricles and both semilunar valves are noticed in 10 and 12 cases respectively. 4. Subaortic type conus is noted in all 18 cases. 5. Associated cardic malformations are VSD in 14 cases, PS in 11, PDA in 3, PFO in 3, ASD in 2, right aortic arch in 2, tricuspid insufficiency, mitral prolapse, persistent left SVC and persistent right SVC in 1 case respectively. 6. For accurate diagnosis of corrected TGA, selective biventriculography using biplane cineradiography is an essential procedure

1981-12-01

70

The response of sweet basil (Ocimum basilicum L. to the application of growth stimulators and forecrops  

Directory of Open Access Journals (Sweden)

Full Text Available A field experiment in growing sweet basil was carried out in the period 2008-2010 in Fajs?awice (Lublin region, on podzolic soil. The study evaluated the biometric traits of the plants, yield, the qualitative parameters of herbal raw material and weed infestation of the crop in dependence on growth simulators (Asahi SL, Bio-algeen, Titanit and the forecrop (winter wheat or spring barley + white mustard cover crop. Plots without foliar application of the growth stimulators were the control treatment. Tillage, mineral NPK fertilization as well as mechanical and chemical weed control were typical for this plant species and consistent with the recommendations for herbal plant protection. A hypothesis was made that the application of growth stimulators would have a positive effect on basil productivity, raw material quality and weed infestation of the basil crop. It was also assumed that the phytosanitary and fertilizing effects of the cover crop would result in higher and qualitatively better yield compared to the cereal forecrop alone (winter wheat. The best quantitative parameters of sweet basil raw material and the highest reduction in air-dry weight of weeds in the crop were observed after the application of the growth stimulators. The forecrop - spring barley + a white mustard cover crop that is ploughed in - also had a beneficial effect on yield and weed infestation of the plant in question. The traditional crop protection method used in the basil crop, without the application of the growth stimulators, resulted in a lower plant height and a smaller number of shoots per plant. This caused higher weed infestation of the crop and a decrease in yield. The positive side of the non-application of growth stimulators was a better chemical composition of basil raw material. Asahi SL and Tytanit yielded the best growth and productivity of the basil plants.

Cezary A. Kwiatkowski

2011-06-01

71

Basil Bunting’s Aesthetic Function: Art vs. Intellect  

Directory of Open Access Journals (Sweden)

Full Text Available

Basil Bunting is most commonly thought of as 1930s and 1940s poet grouped with some other poets such as Louis Zukofsky and Lorine Niedecker under the label “Objectivist ”. The present researchers seek to achieve two goals in this paper. The fi rst goal is to argue that Bunting pushes the aesthetic function to the very brink of sense but holds it there, oscillating on the cusp of referential meaning, thus creating a contested, liminal space where sound and sense content for the constructive axis of meaning-construction. The second goal is to construct an oppositional relationship between art and intellect and conclude that if the best poetry aspires to a state of pure music, that aspiration moves it even further away from the intellect1. Reference will also be made to opponents who put sight and visuality over and above everything else in man’s effort to acquire knowledge of this world in general.

Key words: Bunting; Aesthetics; Form; Art; Intellect; Music

Résumé Basil Bunting est le plus souvent considérés comme des années 1930 et 1940 de regroupés les poètes avec quelques autres poètes tels que Louis Zukofsky et Lorine Niedecker sous le label «objectiviste». Les chercheurs comtenporains cherchent à atteindre deux objectifs dans le présent document. Le premier objectif est de faire valoir que le Bunting pousse la fonction esthétique au bord même du sens, mais y maintient, oscillant sur le point de sens référentiel, créant ainsi un litigieuse, espace liminal où le son et le contenu de sens pour l’axe constructif de sens-la construction. Le deuxième objectif est de construire une relation d’opposition entre l’art et de l’intellect et de conclure que si la meilleure poésie aspire à un état de la musique pure, que l’aspiration se déplace encore plus loin de l’intellect. Référence sera également à des adversaires qui ont mis la vue et la visualité audelà de tout le reste de l’effort de l’homme d’acquérir des connaissances de ce monde en général.

Mots clés: Forme Bunting; L’esthétique; L’art; L’intelligence; De la musique

Raheleh S. Aaraaby

2012-04-01

72

Transposition of the great arteries in MRI; Transposition der grossen Arterien im MRT des Herzens  

Energy Technology Data Exchange (ETDEWEB)

The contribution on transposition of the great arteries (TGA) in the heart NMR images covers the following issues: different forms of TGA (dextro-TGA and levo-TGA), therapeutic options, long-term complication of TGA and the importance of heart NMR imaging in case of TGA.

Zaehringer, C.; Leiner, T.; Maki, J.H.; Potthast, S.

2014-02-15

73

Nydiagnosticeret kongenit transposition hos en 76-Ã¥rig kvinde  

DEFF Research Database (Denmark)

A case of congenitally corrected transposition presenting for the first time with second-degree AV block in a 76-year-old woman is presented. This case demonstrates that congenitally corrected transposition can remain asymptomatic and undiagnosed, especially when no other cardiac defects are present. Udgivelsesdato: 2009-Jan-26

Sloth, Astrid Drivsholm; Jensen, Jesper Khedri

2009-01-01

74

The anatomy of ulnar nerve branches in anterior transposition.  

Science.gov (United States)

Cubital tunnel syndrome is the second most common nerve entrapment neuropathy. When non-operative treatments fail, surgical intervention is indicated. Although there remains no consensus between simple decompression and anterior transposition, there is a growing recognition of improved clinical outcomes in the latter. Few details of ulnar nerve branches around the elbow are available however and their sacrifice may be necessary to facilitate anterior transposition. Therefore, ten cadaveric upper extremities were dissected to delineate the course and branching pattern of the ulnar nerve around the elbow joint; anterior transposition was also performed in the cadaveric specimens. Digital photographs of the dissection study were analyzed using the Image J package. Results show that distal ulnar nerve branches are distributed more laterally towards the olecranon and may potentially restrict transposition more than has been recognized; proximal branches may also overlap incision lines of such transposition procedures. PMID:24156569

Ng, Zhi Yang; Mitchell, Jennifer H; Fogg, Quentin A; Hart, Andrew M

2013-01-01

75

Aroma characterisation and UV elicitation of purple basil from different plant tissue cultures.  

Science.gov (United States)

Exposure to stressful environmental conditions can induce severe metabolic variations in basil (Ocimum basilicum) aroma. The aromatic profiles of Dark Opal and Red Rubim varieties (in vivo plants, in vitro shoots, callus, and suspension cultures) were investigated for the first time. The established calli represented the most interesting miniaturised aromatic plant systems, as they were able to emit many typical basil volatiles with very low amounts of phenylpropanoids (1-2%). The hydrocarbon monoterpenes and oxygenated volatiles emitted from calli of both varieties were greatly and conversely affected by UV-C and UV-B, in comparison with the non-irradiated samples. As calli of both varieties still maintained very low levels of phenylpropanoids even after UV elicitation, they might be regarded not only as efficient in vitro plant models to study volatile compounds under UV stress conditions, but also as safe aromatic biomass in comparison with in vivo basil plants. PMID:23790847

Bertoli, A; Lucchesini, M; Mensuali-Sodi, A; Leonardi, M; Doveri, S; Magnabosco, A; Pistelli, L

2013-11-15

76

First Cultivation Trials of Lemon Basil (Ocimum basilicum var. citriodorum in Turkey  

Directory of Open Access Journals (Sweden)

Full Text Available Lemon basil is grown as a culinary herb, used fresh and dried in floral arrangements, and potpourris. In this research we studied essential oil component and herb and oil yields of commercial lemon basil grown in Mediterranean region of Turkey. Lemon basil were cultivated under €ukurova conditions in Turkey, and could be harvested 3 times at the full-flowering. In our conditions, harvest number increased four providing that earlier sowing is performed. Total fresh leaf yield and total dried leaf yield were 2760 kg/da and 571.52 kg/da, respectively. Essential oil components in leaves and flowers were analyzed by GC. The maximum essential oil yield (0.71 % was obtained at the I. harvest time from the dried flowers. Main component of essential oil was citral. The maximum citral (neral+geraniol content (89.28 % was determined at the II. harvest time

Sezen Tansi

2000-01-01

77

Effects of different substrates on basil seedlings quality (Ocimum basilicum L.  

Directory of Open Access Journals (Sweden)

Full Text Available In this study five different substrates were used, such as: compost; mixture of compost, Lumbrikus H and garden soil; mixture of compost and Lumbrikus H; mixture of compost, Lumbrikus H and peat Galicina and Seedling Klassman substrate. Basil seedling was produced in containers according to "speeding" system. The studies have shown that the best quality of basil seedling of varieties Genovese and Lattuga is achieved when the mixture of substrates Compost, Lumbrikus H and Galicina peat are applied in the volume proportion of 50% : 30% : 20%.

Jela?i? Slavica

2005-01-01

78

Chemical composition of the essential oil of basil (Ocimum basilicum L. Lamiaceae  

Directory of Open Access Journals (Sweden)

Full Text Available In Serbia basil has been grown traditionally as a decorative, medicinal, seasoning and ritual herb, and there is a variety of different populations of basil. Basil is considered to have been brought to Serbia in the 12th century by monks returning from their pilgrimages. Essential oils isolated from herb of ten basil populations traditionally grown on the territory of the Republic of Serbia have been analyzed. The selected populations have been designated under codes from T-1 to T-10 and deposited in the Plant Genes Bank at Serbia and at the Institute for Crop Sciences of the Faculty of Agriculture in Belgrade. Essential oils of all tested basil populations were light yellow and had a specific aromatic scent. The composition of essential oil in the dry herb of the tested populations ranged from 0.87 to 1.84%. The results of gas chromatographic analysis of essential oils in tested basil populations pointed to their complex chemical composition and to the fact that they belong to the most appreciated European chemotype. In total thirty three components have been identified in the essential oils. The most common fraction of components in all tested oils was terpenoides. The predominant component in all essential oils is monoterpen linalol, ranging from 51.52 to 74.73%. Phenylpropranoid methylchavicol ranged from 2.49 to 18.97%. Essential oils of populations T-6, T-7, T-8 and T-10 were characterized by elevated 1.8-cineol (4.44, 3.70, 4.01 and 3.43%, respectively. Populations T-3 and T-4 in essential oil contained higher percent of geraniol (4.27 and 3.31%, respectively. In all ten essential oils sesquiterpen fraction consisted of greater number of components, with germacrene having special significance as it was found in high percentage in all populations. The highest content of germacrene was registered in population T-9 (4.30%, T-10 (4.18%, while in others it ranged from 2.17 to 3.69%. Basil populations traditionally grown in Serbia have exceptional quality. They represent an excellent raw material for the production of basil essential oils, for the needs of pharmaceutical, food and chemical industry.

Jela?i? Slavica ?.

2011-01-01

79

Distal ulnar-basilic fistula as the first hemodialysis access.  

Science.gov (United States)

Purpose: A distal forearm ulnar-basilic (UB) arteriovenous fistula (AVF) can be chosen if a radial-cephalic (RC)-AVF is not suitable for a primary AVF. However, limited data are available on the feasibility of using a distal forearm UB-AVF as an option for primary AVF.Methods: This retrospective analysis included 446 patients for whom AVFs (417 RC and 29 UB) had been newly created from January 2003 to December 2009, at our hospital. Patients in whom the arterial or venous anatomy precluded RC-AVF creation, UB-AVF was established as distally as possible on the forearm. Patency, defined as access survival after creation, was calculated using Kaplan-Meier analysis. The difference in patency between the two groups was examined using log-rank test.Results: The primary patency of UB-AVFs was significantly lower than that of RC-AVFs (p=0.037, log-rank test). The primary patency rate at 1 year was 25.0% versus 44.7%, respectively. However, there was no significant difference in secondary patency between the two groups. The secondary patency rate at 1 year was 85.5% for UB-AVFs versus 82.9% for RC-AVFs. The incidence rate of percutaneous angioplasty until access abandonment per patient-years was 1.100 for UB-AVFs versus 0.671 for RC-AVFs. There was no difference in the time to maturation between the two groups.Conclusions: The secondary patency rate of UB-AVF is similar to that of RC-AVF. We recommend the creation of an UB-AVF when an RC-AVF is not a suitable option for the primary AVF. PMID:24101419

Shintaku, Sadanori; Kawanishi, Hideki; Moriishi, Misaki; Bansyodani, Masataka; Tsuchiya, Shinichiro

2014-05-01

80

Partial mixing of semi-random transposition shuffles  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We show that for any semi-random transposition shuffle on $n$ cards, the mixing time of any given $k$ cards is at most $n\\log k$, provided $k=o((n/\\log n)^{1/2})$. In the case of the top-to-random transposition shuffle we show that there is cutoff at this time with a window of size O(n), provided further that $k\\to\\infty$ as $n\\to\\infty$ (and no cutoff otherwise). For the random-to-random transposition shuffle we show cutoff at time $(1/2)n\\log k$ for the same conditions on ...

Pymar, Richard

2013-01-01

 
 
 
 
81

Transpositionally active episomal hAT elements  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background hAT elements and V(DJ recombination may have evolved from a common ancestral transposable element system. Extrachromosomal, circular forms of transposable elements (referred to here as episomal forms have been reported yet their biological significance remains unknown. V(DJ signal joints, which resemble episomal transposable elements, have been considered non-recombinogenic products of V(DJ recombination and a safe way to dispose of excised chromosomal sequences. V(DJ signal joints can, however, participate in recombination reactions and the purpose of this study was to determine if hobo and Hermes episomal elements are also recombinogenic. Results Up to 50% of hobo/Hermes episomes contained two intact, inverted-terminal repeats and 86% of these contained from 1-1000 bp of intercalary DNA. Episomal hobo/Hermes elements were recovered from Musca domestica (a natural host of Hermes, Drosophila melanogaster (a natural host of hobo and transgenic Drosophila melanogaster and Aedes aegypti (with autonomous Hermes elements. Episomal Hermes elements were recovered from unfertilized eggs of M. domestica and D. melanogaster demonstrating their potential for extrachromosomal, maternal transmission. Reintegration of episomal Hermes elements was observed in vitro and in vivo and the presence of Hermes episomes resulted in lower rates of canonical Hermes transposition in vivo. Conclusion Episomal hobo/Hermes elements are common products of element excision and can be maternally transmitted. Episomal forms of Hermes are capable of integration and also of influencing the transposition of canonical elements suggesting biological roles for these extrachromosomal elements in element transmission and regulation.

Hice Robert H

2009-12-01

82

Chemical control of downy mildew on lettuce and basil under greenhouse.  

Science.gov (United States)

Eight experimental trials were carried out during 2007 and 2008 to evaluate the efficacy of different fungicides against downy mildew of lettuce (Bremia lactucae) and basil (Peronospora belbahrii) under greenhouse conditions, at temperatures ranging from 19 to 24 degrees C. The mixture fluopicolide (fungicide belonging to the + propamocarb hydrochloride (fungicide belonging to the new chemical class of acyl-picolides) was compared with metalaxyl m + copper, zoxamide + mancozeb, iprovalicarb + Cu, fenamidone + fosetyl-Al and azoxystrobin. Two treatments were carried out at 8-12 day interval on lettuce and basil. The artificial inoculation of B. lactucae on lettuce (cv Cobham Green) and P. belbahrii. on basil (cv Genovese gigante) was carried out by using 1 x 10(5) CFU/ml 24 h after the first treatment. In the presence of a medium-high disease severity, all fungicides tested in these trials were effective against downy mildew on lettuce and basil as the other fungicides already available. The importance of the availability of a number of different chemicals to control downy mildews is discussed. PMID:20222581

Gullino, M L; Gilardi, G; Garibaldi, A

2009-01-01

83

In vitro rosmarinic acid accumulation in sweet basil (Ocimum basilicum L.).  

Science.gov (United States)

Leaf-derived suspension cultures of sweet basil, Ocimum basilicum L. accumulated rosmarinic acid up to 10 mg g(-1) dry wt, a value up to 11 times higher than in callus cultures or in leaves of donor plants. Immobilized cells accumulated less than 15 microg rosmarinic acid g(-1). PMID:12882562

Kintzios, Spiridon; Makri, Olga; Panagiotopoulos, Emmanuil; Scapeti, Maria

2003-03-01

84

The power of norms in the transposition of EU directives  

Directory of Open Access Journals (Sweden)

Full Text Available Transposition research provides an excellent opportunity to bring new data to bear on two of the most dominant theoretical approaches to European Union studies: rational choice institutionalism and sociological institutionalism. Yet the goal of comparable testing is hampered by the underspecified nature of the sociological perspective. This paper takes some steps towards identifying and operationalising a sociological explanation of the transposition of EU directives. Examining an array of alternatives, we single out an approach that focuses on the transmission of norms as a way to explain transposition delay and content changes, and on persuasion to help explain norm change over time. To probe the validity of our explanation, we apply it to a case study of the transposition of two anti-discrimination directives from 2000 in Slovakia. In short, our paper aims to move forward the search for a testable sociological framework in EU studies, while offering an operational approach to studying the process of transposing EU directives.

Dimitrova

2005-11-01

85

Universal platform for quantitative analysis of DNA transposition  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Completed genome projects have revealed an astonishing diversity of transposable genetic elements, implying the existence of novel element families yet to be discovered from diverse life forms. Concurrently, several better understood transposon systems have been exploited as efficient tools in molecular biology and genomics applications. Characterization of new mobile elements and improvement of the existing transposition technology platforms warrant easy-to-use assays for the quantitative analysis of DNA transposition. Results Here we developed a universal in vivo platform for the analysis of transposition frequency with class II mobile elements, i.e., DNA transposons. For each particular transposon system, cloning of the transposon ends and the cognate transposase gene, in three consecutive steps, generates a multifunctional plasmid, which drives inducible expression of the transposase gene and includes a mobilisable lacZ-containing reporter transposon. The assay scores transposition events as blue microcolonies, papillae, growing within otherwise whitish Escherichia coli colonies on indicator plates. We developed the assay using phage Mu transposition as a test model and validated the platform using various MuA transposase mutants. For further validation and to illustrate universality, we introduced IS903 transposition system components into the assay. The developed assay is adjustable to a desired level of initial transposition via the control of a plasmid-borne E. coli arabinose promoter. In practice, the transposition frequency is modulated by varying the concentration of arabinose or glucose in the growth medium. We show that variable levels of transpositional activity can be analysed, thus enabling straightforward screens for hyper- or hypoactive transposase mutants, regardless of the original wild-type activity level. Conclusions The established universal papillation assay platform should be widely applicable to a variety of mobile elements. It can be used for mechanistic studies to dissect transposition and provides a means to screen or scrutinise transposase mutants and genes encoding host factors. In succession, improved versions of transposition systems should yield better tools for molecular biology and offer versatile genome modification vehicles for many types of studies, including gene therapy and stem cell research.

Pajunen Maria I

2010-11-01

86

A phase transition in the random transposition random walk  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Our work is motivated by Bourque and Pevzner's (2002) simulation study of the effectiveness of the parsimony method in studying genome rearrangement, and leads to a surprising result about the random transposition walk on the group of permutations on $n$ elements. Consider this walk in continuous time starting at the identity and let $D_t$ be the minimum number of transpositions needed to go back to the identity from the location at time $t$. $D_t$ undergoes a phase transiti...

Berestycki, Nathanael; Durrett, Rick

2004-01-01

87

Vocal rehabilitation after gastric transposition. The critical overview.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Re-establishment of effective communication following laryngopharyngo esophagectomy and gastric transposition requires thorough knowledge and flexibility of introducing the entire range of communication options. This study describes our experience with eleven patients of gastric transposition who attended intensive speech therapy and developed gastric speech using different method of speech producing and attaining various levels of proficiency. Application of digital pressure is one of the mo...

Premalatha B; Shenoy A; Nanjundappa; Sri Hari Prasad A

1997-01-01

88

Simulation of apical and atrio-aortic vad in patients with transposition or congenitally corrected transposition of the great arteries.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Objectives: VADs could be used for great arteries transposition (TGA) and congenitally corrected transposition (ccTGA) treatment. A cardiovascular numerical model (CVNM) could be a useful clinical support in these complex physiopathologies. This work aims at developing and preliminarily verifying a CVNM of ccTGA and TGA interacting with VADs. Methods & Materials: Haemodynamic data were collected at the baseline (BL) and three months (FUP) after apical (atrio-aortic) VAD implantation in TGA (c...

Di Molfetta, Arianna; Ferrari, Gianfranco; Fresiello, Libera; Jacobs, Steven; Meyns, Bart; Trivella, Maria Giovanna; Verbelen, Tom

2013-01-01

89

Repellent Activities of the Essential Oils of Four Sudanese Accessions of Basil (Ocimum basilicum L. Against Anopheles Mosquito  

Directory of Open Access Journals (Sweden)

Full Text Available Basil (Ocimum basilicum L. of the Labiatae is an important culinary herb and essential oil source widely recognized worldwide, though much less in Sudan. The essential oil of 4 basil accessions were assessed for mosquito repellency were suggested. Basil seed accessions were collected as seeds and grown at the University of Gezira farm, Wad Medani, Sudan. All four essential oil conferred complete mosquito repellency (assayed by the human-bait technique lasting for 1.5 to 2.5 h per one application of 0.1 mL to a volunteer’s arm. Repellency generally decreased with bioassay time. The experimental results obtained from this study suggest that essential oil of basil are promising as repellents at 0.1% concentration against Anopheles mosquito and could be useful in the search for new natural repellent compounds.

Azhari H. Nour

2009-01-01

90

Effect of Storage on Physico-Chemical, Microbiological and Sensory Quality of Bottlegourd-Basil Leaves Juice  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Bottlegourd (Lagenaria siceraria) and Basil (Ocimum sanctum) leaves blended juice was formulated with the help of Response surface methodology. The central composite design with 15 experimental combinations was used to optimize the product. The surface plots are used to represent the effects of variations in the ingredient levels. The physico-chemical, microbiological safety and sensory characteristics of the bottlegourd-basil blended juice in glass bottle were evaluated during ...

Majumdar, T. K.; Wadikar, D. D.; Vasudish, C. R.; Premavalli, K. S.; Bawa, A. S.

2011-01-01

91

Deployment of Municipal Solid Wastes as a Substitute Growing Medium Component in Marigold and Basil Seedlings Production  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The possible use of municipal solid waste compost (MSWC) in the production of marigold and basil seedlings examined. Six medium prepared from commercial peat (CP) and MSWC (0, 15, 30, 45, 60, and 100%?v/v). There was not any plant growth when MSWC used alone (100%). The addition of MSWC in low content (15% and 30%) improved seed emergence for marigold and basil respectively, while greater content revealed opposed impacts. Mean emergence time delayed as MSWC content increased into substrates...

Tzortzakis, Nikos; Gouma, Sofia; Paterakis, Costas; Manios, Thrassyvoulos

2012-01-01

92

Effect of Water Stress on Some Morphological and Biochemical Characteristics of Purple Basil (Ocimum basilicum)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Basil (Ocimum basilicum) is an annual herb plant belonging to the Lamiaceae family that is used as a drug, spice and fresh vegetable. In order to study the effects of different levels of water stress on some morphological and biochemical characteristics of purple basil, a pot experiment was conducted in randomized complete block design with six treatments and three replications in growth chamber. The different levels of water stress were 100 (control or non-stress), 90, 80, 70, 60 and ...

Moeini Alishah, H.; Heidari, R.; Hassani, A.; Asadi Dizaji, A.

2006-01-01

93

Shuffling by semi-random transpositions  

CERN Multimedia

In the cyclic-to-random shuffle, we are given n cards arranged in a circle. At step k, we exchange the k'th card along the circle with a uniformly chosen random card. The problem of determining the mixing time of the cyclic-to-random shuffle was raised by Aldous and Diaconis in 1986. Recently, Mironov used this shuffle as a model for the cryptographic system known as ``RC4'' and proved an upper bound of O(n log n) for the mixing time. We prove a matching lower bound, thus establishing that the mixing time is indeed of order $\\Theta(n \\log n)$. We also prove an upper bound of O(n log n) for the mixing time of any ``semi-random transposition shuffle'', i.e., any shuffle in which a random card is exchanged with another card chosen according to an arbitrary (deterministic or random) rule. To prove our lower bound, we exhibit an explicit complex-valued test function which typically takes very different values for permutations arising from the cyclic-to-random-shuffle and for uniform random permutations; we expect ...

Mossel, E; Sinclair, A; Mossel, Elchanan; Peres, Yuval; Sinclair, Alistair

2004-01-01

94

Extended bias-factor data transposition method  

International Nuclear Information System (INIS)

The importance of experimental campaigns in relation to the design of a specific reference project is well recognized. In these cases, a number of quantities, significant with respect to the major integral parameters relevant to the reference system are measured in an experimental facility (in particular, physical and/or engineering mock-up), and then transposed to the reference system itself. In cases in which the experimental facility is very similar, only minor corrections are generally necessary and the simple, well known, bias-factor transposition (BFT) method can be successfully adopted. But if the two systems differ to some extent and/or if quantities in the experimental facility somehow differ from those of the reference design are considered, although the useful information contained in the measurements remains significant, making full use of it may become a problem. An extension of the simple BFT method is then proposed, so that full use of the available experimental information can be made. This extended methodology can be used as well for optimal experimental planning in view of specific design objectives

1985-11-01

95

[The iliac vein occlusion].  

Science.gov (United States)

Basing on roentgenological and morphological investigations the causes of the iliac veins passability disorder were studied up. In 45.1% of observations the stenosis was revealed of the left and in 1.2% of the right common iliac vein. Among the stenosis causes were osteal or cartilagenous prominences of vertebral column, intravascular structures (webs, membranes) in the left common iliac vein, the external iliac vein squeeze by internal iliac artery, retroperitoneal fibrosis, the right common iliac artery aneurysm, anomalous branching of parietal pelvic artery. PMID:10370311

Baeshko, A A; Rogov, Iu I; Kriukov, A G; Sysoev, A V; Puchkov, A F; Berlov, G A

1999-01-01

96

Potential Activity of Basil Plants as a Source of Antioxidants and Anticancer Agents as Affected by Organic and Bio-organic Fertilization  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Sweet basil (Ocimum basilicum) is a popular culinary herbal crop grown for fresh or dry leaf, essential oil and seed markets. Recently, basil was shown to rank highest among species and herbal crops for phenolic compounds, essential oils which are associated with decreasing risks of cancer and aging diseases. The current study aimed to evaluate the potential activity of phenolic, flavonoids and essential oil of basil as antioxidant and anticancer activities by application organic and bio-orga...

Taie, Hanan Anwar Aly; Salama, Zeinab Abd-el Rahman; Radwan, Samir

2010-01-01

97

Effect of Water Stress on Some Morphological and Biochemical Characteristics of Purple Basil (Ocimum basilicum  

Directory of Open Access Journals (Sweden)

Full Text Available Basil (Ocimum basilicum is an annual herb plant belonging to the Lamiaceae family that is used as a drug, spice and fresh vegetable. In order to study the effects of different levels of water stress on some morphological and biochemical characteristics of purple basil, a pot experiment was conducted in randomized complete block design with six treatments and three replications in growth chamber. The different levels of water stress were 100 (control or non-stress, 90, 80, 70, 60 and 50% of field capacity. The results of statistical analysis showed that water stress has significant effects on morphological and biochemical characteristics. As the soil water content decreased, the plant height, stem diameter, number and area of leaves, Leaf Area Index (LAI, herb yield and leaf chlorophyll contents (a,b and total chlorophyll decreased but the amounts of anthocyanin and proline increased.

H. Moeini Alishah

2006-01-01

98

Facts about dextro-Transposition of the Great Arteries (d-TGA)  

Science.gov (United States)

... about dextro-Transposition of the Great Arteries (d-TGA) Click here to view a larger image Learn ... works » Dextro-Transposition of the Great Arteries (d-TGA) is a birth defect of the heart in ...

99

Methyl jasmonate-elicited transcriptional responses and pentacyclic triterpene biosynthesis in sweet basil.  

Science.gov (United States)

Sweet basil (Ocimum basilicum) is well known for its diverse pharmacological properties and has been widely used in traditional medicine for the treatment of various ailments. Although a variety of secondary metabolites with potent biological activities are identified, our understanding of the biosynthetic pathways that produce them has remained largely incomplete. We studied transcriptional changes in sweet basil after methyl jasmonate (MeJA) treatment, which is considered an elicitor of secondary metabolites, and identified 388 candidate MeJA-responsive unique transcripts. Transcript analysis suggests that in addition to controlling its own biosynthesis and stress responses, MeJA up-regulates transcripts of the various secondary metabolic pathways, including terpenoids and phenylpropanoids/flavonoids. Furthermore, combined transcript and metabolite analysis revealed MeJA-induced biosynthesis of the medicinally important ursane-type and oleanane-type pentacyclic triterpenes. Two MeJA-responsive oxidosqualene cyclases (ObAS1 and ObAS2) that encode for 761- and 765-amino acid proteins, respectively, were identified and characterized. Functional expressions of ObAS1 and ObAS2 in Saccharomyces cerevisiae led to the production of ?-amyrin and ?-amyrin, the direct precursors of oleanane-type and ursane-type pentacyclic triterpenes, respectively. ObAS1 was identified as a ?-amyrin synthase, whereas ObAS2 was a mixed amyrin synthase that produced both ?-amyrin and ?-amyrin but had a product preference for ?-amyrin. Moreover, transcript and metabolite analysis shed light on the spatiotemporal regulation of pentacyclic triterpene biosynthesis in sweet basil. Taken together, these results will be helpful in elucidating the secondary metabolic pathways of sweet basil and developing metabolic engineering strategies for enhanced production of pentacyclic triterpenes. PMID:24367017

Misra, Rajesh Chandra; Maiti, Protiti; Chanotiya, Chandan Singh; Shanker, Karuna; Ghosh, Sumit

2014-02-01

100

EFFECTS OF AGRONOMIC VARIABLES AND HINERITANCE ON AROMATIC COMPONENTS IN BASIL AND CHILI PEPPER  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This PhD Thesis focuses on how aroma profile in crops is affected by agronomic and genetic variables. In the first chapter we considered the effects of salt stress on main morphological and physiological traits of two cultivars of sweet basil (Genovese and Napoletano) Specifically, we focused on compositional changes in aroma profile and their possible significance in adaptation and tolerance to the oxidative stress.

2009-01-01

 
 
 
 
101

Non-existence of bipartite bound entanglement with negative partial transposition  

CERN Multimedia

The open question of whether or not there exist bound entangled states with a negative partial transposition is answered for the bipartite case. For this purpose, a distillation is given that applies to any bipartite entangled state with a negative partial transposition. This proves the non-existence of bipartite bound entangled states with a negative partial transposition.

Sperling, J

2009-01-01

102

Ovarian vein thrombosis  

International Nuclear Information System (INIS)

Ovarian vein thrombosis is a well-known but rare entity, which can occur during the post-partum period. This condition has also been associated with inflammatory and malignant processes within the pelvis. Untreated, complications of ovarian vein thrombosis can be significant due to the associated sepsis and risk of pulmonary embolism. Diagnosis can be made with confidence using ultrasound, computed tomography or magnetic resonance imaging. Treatment of ovarian vein thrombosis is particularly important in the post-partum patients, with anticoagulation therapy being the current recommendation.

2012-09-01

103

Deployment of municipal solid wastes as a substitute growing medium component in marigold and basil seedlings production.  

Science.gov (United States)

The possible use of municipal solid waste compost (MSWC) in the production of marigold and basil seedlings examined. Six medium prepared from commercial peat (CP) and MSWC (0, 15, 30, 45, 60, and 100% v/v). There was not any plant growth when MSWC used alone (100%). The addition of MSWC in low content (15% and 30%) improved seed emergence for marigold and basil respectively, while greater content revealed opposed impacts. Mean emergence time delayed as MSWC content increased into substrates. Addition of MSWC (especially in content greater than 30%) into CP reduced (from 34 to 64%) plant height, leaf number and stem diameter as a consequence reduced plant fresh weight (plant biomass) for both species. The number of lateral stems decreased (up to 81%) in basil when MSWC added into substrate mixtures. Chlorophyll b content decreased (up to 58%) in substrates with MSWC content greater than 15% or 30% while similar reduction observed in content of Chlorophyll a and total carotenoids for basil with MSWC > 60%. However, Chlorophyll a and total carotenoids content increased as MSWC content increased for marigold. K and Na leaf content increased but P equivalent decreased as MSWC content increased. Nursery-produced basil and marigold seedlings grown in 15% MSWC; displayed quality indices similar to those recorded for conventional mixtures of peat and may act as component substitute. PMID:22649285

Tzortzakis, Nikos; Gouma, Sofia; Paterakis, Costas; Manios, Thrassyvoulos

2012-01-01

104

Tagliatelle technique for arteriovenous fistula creation using a great saphenous vein semipanel graft.  

Science.gov (United States)

Lower limb arteriovenous (AV) access creation can be attempted in patients where upper limb options are exhausted. Utilization of the great saphenous vein as a conduit for AV access has been limited due to its small diameter and resistance to dilatation. Lower limb AV fistulas today are mostly either prosthetic grafts with high rates of infection and thrombosis or transposition of the femoral vein that can lead to limb-threatening venous hypertension. In this report, we describe an optimized technique for reconstruction of the great saphenous vein to serve as a dialysis conduit. This semipanel graft reconstruction effectively doubles the diameter of the conduit without disruption of the deep venous circulation and also mitigates the requirement for a venovenous anastomosis. PMID:23973450

Alomran, Faris; Boura, Benoit; Mallios, Alexandros; De Blic, Romain; Costanzo, Alessandro; Combes, Myriam

2013-12-01

105

Separability criterion and inseparable mixed states with positive partial transposition  

CERN Multimedia

A new separability criterion for mixed states in terms of range of density matrix is obtained. It is used in construction of inseparable mixed states with positive partial transposition in the case of $3\\times 3$ and $2\\times 4$ systems. The states represent an entanglement which is hidden in a more subtle way than it has been known so far.

Horodecki, P

1997-01-01

106

Bound entangled states with not positive partial transposition exist  

CERN Multimedia

We prove the conjecture about existence bound entangled density matrices having partial transposition not positive. This is achieved by showing that some entangled Werner states are not distillable. The far-reaching implications of the result are discussed. In particular it pointed that it implies nonadditivity of ``two-way'' quantum capacity $Q_{\\leftrightarrow}$.

Horodecki, P

2001-01-01

107

Relational Learning in a Context of Transposition: A Review  

Science.gov (United States)

In a typical transposition task, an animal is presented with a single pair of stimuli (for example, S3+S4-, where plus and minus denote reward and nonreward and digits denote stimulus location on a sensory dimension such as size). Subsequently, an animal is presented with a testing pair that contains a previously reinforced or nonreinforced…

Lazareva, Olga F.

2012-01-01

108

Gold-catalyzed 1,3-transposition of ynones.  

Science.gov (United States)

An efficient, regioselective gold-catalyzed 1,3-transposition reaction of ynones and diynones has been developed. It was found that stereoelectronic (interrupted conjugation) and electronic (extended conjugation) factors could efficiently govern the regioselectivity of this thermodynamically controlled transformation. The produced conjugated diynones were efficiently transformed into diverse alkyne-substituted five- and six-membered heterocycles. PMID:24971528

Kazem Shiroodi, Roohollah; Soltani, Mohammad; Gevorgyan, Vladimir

2014-07-16

109

Efficient sleeping beauty DNA transposition from DNA minicircles.  

Science.gov (United States)

DNA transposon-based vectors have emerged as new potential delivery tools in therapeutic gene transfer. Such vectors are now showing promise in hematopoietic stem cells and primary human T cells, and clinical trials with transposon-engineered cells are on the way. However, the use of plasmid DNA as a carrier of the vector raises safety concerns due to the undesirable administration of bacterial sequences. To optimize vectors based on the Sleeping Beauty (SB) DNA transposon for clinical use, we examine here SB transposition from DNA minicircles (MCs) devoid of the bacterial plasmid backbone. Potent DNA transposition, directed by the hyperactive SB100X transposase, is demonstrated from MC donors, and the stable transfection rate is significantly enhanced by expressing the SB100X transposase from MCs. The stable transfection rate is inversely related to the size of circular donor, suggesting that a MC-based SB transposition system benefits primarily from an increased cellular uptake and/or enhanced expression which can be observed with DNA MCs. DNA transposon and transposase MCs are easily produced, are favorable in size, do not carry irrelevant DNA, and are robust substrates for DNA transposition. In accordance, DNA MCs should become a standard source of DNA transposons not only in therapeutic settings but also in the daily use of the SB system.Molecular Therapy - Nucleic Acids (2013) 2, e74; doi:10.1038/mtna.2013.1; published online 26 February 2013. PMID:23443502

Sharma, Nynne; Cai, Yujia; Bak, Rasmus O; Jakobsen, Martin R; Schrøder, Lisbeth Dahl; Mikkelsen, Jacob Giehm

2013-01-01

110

Deep vein thrombosis - discharge  

Science.gov (United States)

Deep venous thrombosis (DVT) is when a blood clot forms in a vein that is not on the surface of the ... al. Executive Summary: Antithrombotic Therapy and Prevention of Thrombosis. 9th ed. American College of Chest Physicians Evidence- ...

111

Antifungal activity of the basil (Ocimmum basilicum L. extract on Penicillium aurantiogriseum, P. glabrum, P. chrysogenum, and P. brevicompactum  

Directory of Open Access Journals (Sweden)

Full Text Available This study was aimed at investigating the antifungal potential of basil (Ocimmum basilicum L. extract against toxin-producing Penicillium spp. (P. aurantiogriseum, P. glabrum, P. chrysogenum, and P. brevicompactum isolated from food. The basil extract composition was determined by the GC-MS method. The major component identified in the extract was estragole (86.72%. The determination of the antifungal activity of basil extract on Penicillium spp. was performed using the agar plate method. Basil extract reduced the growth of Penicillium spp. at all applied concentration levels (0.16, 0.35, 0.70, and 1.50 mL/100mL with the colony growth inhibition from 3.6 (for P. glabrum to 100% (for P. chrysogenum. The highest sensitivity showed P. chrysogenum, where the growth was completely inhibited at the basil extract concentration of 1.50 mL/100mL. The growth of other Penicillium spp. was partially inhibited with the colony growth inhibition of 63.4 % (P. brevicompactum, 67.5% (P. aurantiogriseum, and 71.7% (P. glabrum. Higher concentrations (0.70 and 1.50 mL/100mL reduced the growth of the aerial mycelium of all tested Penicillium species. In addition, at the same extract concentrations, the examination of microscopic preparation showed the deformation of hyphae with the frequent occurrence of fragmentations and thickenings, occurrence of irregular vesicle, frequently without metulae and phialides, enlarged metulae. The results obtained in this investigation point to the possibility of using basil extract for the antifungal food protection. [Projekat Ministarstva nauke Republike Srbije, br. TR-31017

Koci?-Tanackov Sun?ica D.

2012-01-01

112

A Study of the Essential Oils of Four Sudanese Accessions of Basil (Ocimum basilicum L. Against Anopheles Mosquito Larvae  

Directory of Open Access Journals (Sweden)

Full Text Available Problem statement: Certain basil essential oils were claimed to have a larvicidal activity towards mosquito's larvae. To test this claim the essential oils of four accessions of basil grown in Sudan were selected and tested for Anopheles larvae. Malaria is the major health problem in the Sudan and the whole country is now considered endemic, with varying degrees, about 35,000 deaths every year due to malaria. Anopheles mosquito is the major vector of malaria disease in Sudan. Search for larvicidal active compound(s is one of several attempts to fine effective and affordable ways to control this mosquito. To determine the toxic effects of basil essential oils extracted by steam distillation against Anopheles larvae. Approach: For the larvicidal bioassay, three concentrations (100, 300, 500 ppm of essential oil solutions of four basil accessions were prepared; 1 mL of ethanol was used to solubilize the oil in water (999 mL. In each concentration of oil solution were inserted 20 larvae (third instars. A set of controls using 0.1% ethanol and untreated sets of larvae in (tap water, were also run for comparison. Data were evaluated through regression analysis, from the regression line; the LC50 values were read. The active ingredients were separated and/ or identified by TLC, IR and GC-MS. Results: Larvicidal activity of the essential oils is varied, lasted for about 9 h and thereafter decreased, LC50 values ranging from 190-300 ppm. Linalool, geraniol and eugenol are active components of basil essential oil against Anopheles larvae. Two accessions were caused 100% mortality at a concentration range 300-500 ppm for 3 h. Conclusion: These results indicated that basil essential oils have larvicidal activity towards Anopheles larvae. Therefore, could be affordable way to control this mosquito.

Azhari H. Nour

2009-01-01

113

SOME CONSIDERATIONS REGARDING THE IN VITRO BEHAVIOUR OF BASIL (OCIMUM BASILICUM L  

Directory of Open Access Journals (Sweden)

Full Text Available In vitro cultures of basil were initiated using shoot tips from plants grown in the laboratory. It was noticed that shoot tips and nodes’ inoculation on MS medium supplemented with cytokinins, auxins or with cytokinins combined with auxins induces caulogenesis and root generation, providing neoplantlets. Adding only 2,4-D or 2,4-D combined with a cytokinin to the nourishing medium, the main reaction of the explants (nodes, internodes, roots, leaves was formation of compact, non-proliferative, green-whitish callus. An in vitro micropropagation technology was perfected for our investigated species, useful to multiply valuable genotypes.

Daniela Nicuta

2006-08-01

114

[Recontextualization of nursing clinical simulation based on Basil Bernstein: semiology of pedagogical practice].  

Science.gov (United States)

This is an investigative case study with descriptive and participative character, based on an educational experience with the Simulation in Nursing learning trigger. It was carried out during the second semester of the first cycle of Faculdade de Enfermagem (FEN), Universidade Federal de Pelotas (UFPel). The aim is to study the recontextualization of pedagogic practice of simulation-based theories developed by Basil Bernstein, an education sociologist, and to contribute with the improvement process of education planning, and especially the evaluation of learning trigger. The research shows that Bernstein's theory is a powerful tool semiotic pedagogical of practices which contributes to the planning and analysis of curricular educational device. PMID:21805886

dos Santos, Mateus Casanova; Leite, Maria Cecília Lorea; Heck, Rita Maria

2010-12-01

115

Obstruction of superior vena cava following the Mustard operation of transposition of great arteries  

International Nuclear Information System (INIS)

The obstruction of the superior vena cava is a frequent late complication of the Mustard operation of the transposition of great arteries. Although it is asymptomatic, it threatens the patient as intracranial hypertension develops. Radionuclide angiocardiography can visualize the collateral blood flow from the obturated vena cava superior by the system of the azygos and hemiazygos veins into inferior vena cava. The benefit of this noninvasive method for screening obstruction was tested in a group of 94 patients. The obstruction of the vena cava superior was apparent in 11 patients (11.7%). In all cases, the diagnosis was confirmed by catheterization and angiocardiography. Pulsed Doppler echocardiography proved an abnormal flow in the vena cava superior in 9 patients. In other five patients with abnormal flow, obstruction was not revealed by radionuclide angiocardiography. Radionuclide angiocardiography supplements echocardiography also as regards other late complications and can be thus recommended for routine examinations of patients after the Mustard operation. (author). 1 fig., 1 tab., 16 refs

1987-11-27

116

Potential Activity of Basil Plants as a Source of Antioxidants and Anticancer Agents as Affected by Organic and Bio-organic Fertilization  

Directory of Open Access Journals (Sweden)

Full Text Available Sweet basil (Ocimum basilicum is a popular culinary herbal crop grown for fresh or dry leaf, essential oil and seed markets. Recently, basil was shown to rank highest among species and herbal crops for phenolic compounds, essential oils which are associated with decreasing risks of cancer and aging diseases. The current study aimed to evaluate the potential activity of phenolic, flavonoids and essential oil of basil as antioxidant and anticancer activities by application organic and bio-organic fertilization. A pot experiment was conducted. Basil seeds were grown, with three levels of organic fertilizers (compost in presence or absence of biofertilizer. Growth parameters, pigments content, total phenolics, total flavonoids and antioxidant activity of methanolic plant extract were examined. Application of 50% compost and 50% sand in the presence of biofertilizer resulted in enhancement fresh and dry weights, total phenolics, total flavonoids and pigment content as compared with compost alone. The constituents of essential oils extracted by hydrodistilation of basil leaves were identified by GLC. Eleven components of essential oils were identified. The highest value of antioxidant and anticancer activities were obtained in basil plants grown in 50% and 75% compost treatments in the presence of biofertilizer. These results emphasized the important of bioorganic fertilizers for enhancement the antioxidant activity of phenolics, flavonoids, and essential oils of basil plant extract.

Zeinab Abd-EL Rahman SALAMA

2010-06-01

117

Surgical Preparation of a Permanent Carotid Transposition in Sheep  

Directory of Open Access Journals (Sweden)

Full Text Available In large animal research, when frequent sampling of arterial blood is needed, the carotid artery transposition is the most used technique. The objective of this paper is to describe a new technique for carotid artery transposition in sheep and evaluate its effectiveness using the echo-Doppler ultrasound. The animals enrolled in this study had their carotid surgically elevated to the subcutaneous level, by suturing underneath muscles sternocephalic and brachiocephalic. None of the animals that underwent the procedure in this study had trans- or postoperative complications. Six months after the suture removal, all animals presented patent ca-rotids by echo-Doppler ultrasound. This is an easy and safe procedure for carrying out experiments that re-quire the collection of arterial blood.

Liana V. Gouvêa

2011-09-01

118

[Outcome of operated transposition of the great vessels].  

Science.gov (United States)

The object of this report is to describe the long-term outcome of patients operated for transposition of the great vessels. Understanding what we mean by transposition of the great vessels, the surgical options with their advantages, limitations and complications, helps the cardiologist decide on the mode of follow-up, the investigations and even the reoperations that these patients may need. The authors review the results of the literature and their experience over the years with children and adults with congenital heart disease. Although considerable progress has been made in the management of a condition considered to be constantly and often rapidly fatal, most of the procedures which allow patients to have a normal or quasi-normal quality of life have not resolved all the problems and require maintenance of long-term follow-up. PMID:12500635

Rouault, F A

2002-11-01

119

The Potential of Use Basil and Rosemary Essential Oils as Effective Antibacterial Agents  

Directory of Open Access Journals (Sweden)

Full Text Available The considerable therapeutical problems of persistent infections caused by multidrug-resistant bacterial strains constitute a continuing need to find effective antimicrobial agents. The aim of this study was to demonstrate the activities of basil (Ocimum basilicum L. and rosemary (Rosmarinus officinalis L. essential oils against multidrug- resistant clinical strains of Escherichia coli. A detailed analysis was performed of the resistance of the drug to the strains and their sensitivity to the tested oils. The antibacterial activity of the oils was tested against standard strain Escherichia coli ATCC 25922 as well as 60 other clinical strains of Escherichia coli. The clinical strains were obtained from patients with infections of the respiratory tract, abdominal cavity, urinary tract, skin and from hospital equipment. The inhibition of microbial growth by both essential oils, presented as MIC values, were determined by agar dilution. Susceptibility testing to antibiotics was carried out using disc diffusion. The results showed that both tested essential oils are active against all of the clinical strains from Escherichia coli including extended-spectrum ?-lactamase positive bacteria, but basil oil possesses a higher ability to inhibit growth. These studies may hasten the application of essential oils in the treatment and prevention of emergent resistant strains in nosocomial infections.

Edward Kowalczyk

2013-08-01

120

Transposition rates of movable genetic elements in Drosophila melanogaster.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A considerable proportion of visible mutations is reported to be caused by the insertion of mobile genetic elements in Drosophila and other organisms. We estimated transposition rates of some Drosophila mobile elements by using the lines AW and JH in which spontaneous mutations have been accumulated independently for about 400 generations. Occupied sites of the mobile elements were detected by in situ hybridization on the salivary gland chromosomes sampled from 40 AW and 30 JH lines. The rate...

Harada, K.; Yukuhiro, K.; Mukai, T.

1990-01-01

 
 
 
 
121

New bounds and tractable instances for the transposition distance  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The problem of sorting by transpositions asks for a sequence of adjacent interval exchanges that sorts a permutation and is of the shortest possible length. The distance of the permutation is defined as the length of such a sequence. Despite the apparently intuitive nature of this problem, introduced in 1995 by Bafna and Pevzner, the complexity of both finding an optimal sequence and computing the distance remains open today. In this paper, we establish connections between two different graph...

Labarre, Anthony

2006-01-01

122

Transposition methods of experimental data to reference design  

Energy Technology Data Exchange (ETDEWEB)

A methodology is described relevant to the use of data from experimental facilities in relation to a reference design. The method makes use of the generalized perturbation theory (GPT) methods for the calculation of the sensitivity coefficients relevant to the responses of interest with respect to the system parameters. Adjustment and data transposition methods extensively used in the reactor physics neutronic domain are considered as applicable to other fields of interest, in particular to the thermohydraulic field. (author). 9 refs.

Gandini, A. [ENEA, Casaccia (Italy). Centro Ricerche Energia

1995-12-31

123

Pregnancy after atrial repair for transposition of the great arteries  

Digital Repository Infrastructure Vision for European Research (DRIVER)

OBJECTIVE—To investigate the risk of pregnancy in patients with transposition of the great arteries (TGA) who have undergone atrial repair.?DESIGN—Retrospective analysis (1962-94) of 342 TGA patients who underwent atrial repair. Of 231 known late survivors, 48 were women over 18 years old who were interviewed about possible reproductive plans and previous pregnancies. As a control, comparison was made with data of 57 500 women (mean age 26 years) obtained from the Swiss Statis...

Genoni, M.; Jenni, R.; Hoerstrup, S.; Vogt, P.; Turina, M.

1999-01-01

124

Transposition of the maize activator element in transgenic rice plants.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Transposition of the maize Activator (Ac) element was observed in transgenic rice. After protoplast transformation, Ac excision from an interrupted hygromycin phosphotransferase gene was monitored by appearance of the hygromycin-resistant colonies. The frequency of Ac excision, based on the biological assay was up to 19%. Southern hybridization analysis indicated that at least one copy per genome of the hygromycin-resistance gene was reconstituted after Ac excision and that the transposed Ac ...

Murai, N.; Li, Z. J.; Kawagoe, Y.; Hayashimoto, A.

1991-01-01

125

Comparative study of different surgical transposition methods for ulnar nerve entrapment at the elbow.  

Science.gov (United States)

This study compared the therapeutic effects of two techniques for surgical decompression treatment for ulnar nerve entrapment at the elbow: subcutaneous transposition and modified submuscular transposition with Z-lengthening of the pronator teres origin. A total of 278 patients with ulnar nerve entrapment (McGowan grades I - III) were randomly assigned to undergo one of these techniques. All patients were followed-up for 2 years. The effects were assessed by preoperative and postoperative cross-sectional area, motor conduction velocity, sensory conduction velocity and nerve action potential. All of these parameters improved after surgery in both groups. For patients with grade I disease, there were no significant differences between the two techniques. For patients with grade II and III disease, modified submuscular transposition was associated with significantly greater improvements compared with subcutaneous transposition. In conclusion, subcutaneous ulnar nerve transposition is recommended for grade I patients and modified submuscular ulnar nerve transposition for grade II and III patients. PMID:22117977

Zhong, W; Zhang, W; Zheng, X; Li, S; Shi, J

2011-01-01

126

Masked transposition effects for simple versus complex nonalphanumeric objects.  

Science.gov (United States)

When two letters/digits/symbols are switched in a string (e.g., jugde-judge; 1492-1942; *?$&-*$?&), the resulting strings are perceptually similar to each other and produce a sizable masked transposition priming effect with the masked priming same-different matching task. However, a parallel effect does not occur for strings of pseudoletters (e.g., [letters in the text]); García-Orza, Perea, & Muñoz, Quarterly Journal of Experimental Psychology, 63, 1603-1618, 2010). In the present study, we examined whether masked transposition priming is specific to alphanumeric stimuli or whether it also occurs with strings composed of other "objects"-namely, line drawings of common objects (Experiment 1) and geometrical shapes (Experiment 2). Results showed a significant masked transposition priming effect for geometrical shapes (e.g., [geometrical shapes in the text]), but not for line drawings of common objects (e.g., [symbols in the text]). These findings suggest that the mechanism involved in the coding of position in masked priming works only with perceptually simple, familiar "objects" (i.e., letters, numbers, symbols, or geometrical shapes), once their identities have been well ascertained. PMID:21901572

García-Orza, Javier; Perea, Manuel; Estudillo, Alejandro

2011-11-01

127

Preferential transposition of Drosophila P elements to nearby chromosomal sites.  

Science.gov (United States)

Two different schemes were used to demonstrate that Drosophila P elements preferentially transpose into genomic regions close to their starting sites. A starting element with weak rosy+ marker gene expression was mobilized from its location in the subtelomeric region of the 1,300-kb Dp1187 minichromosome. Among progeny lines with altered rosy+ expression, a much higher than expected frequency contained new insertions on Dp1187. Terminal deficiencies were also recovered frequently. In a second screen, a rosy(+)-marked element causing a lethal mutation of the cactus gene was mobilized in male and female germlines, and viable revertant chromosomes were recovered that still contained a rosy+ gene due to an intrachromosomal transposition. New transpositions recovered using both methods were mapped between 0 and 128 kb from the starting site. Our results suggested that some mechanism elevates the frequency 43-67-fold with which a P element inserts near its starting site. Local transposition is likely to be useful for enhancing the rate of insertional mutation within predetermined regions of the genome. PMID:8382177

Tower, J; Karpen, G H; Craig, N; Spradling, A C

1993-02-01

128

Deletions affecting the transposition of an antibiotic resistance gene.  

Science.gov (United States)

The structural gene for plasmid-mediated ampicillin resistance resides upon a 3.2 X 10(6) dalton transposable sequence (TnA) flanked by short inverted repeated sequences that accompany its insertion. TnA was transposed to pMB8, a 1.8 X 10(6) dalton derivative of the colicingenic plasmid ColE1. Random deletions were introduced in the resultant 5 X 10(6) dalton recombinant plasmid by a combination of nuclease treatments in vitro. From this set of deletions a subset was isolated that contained deletions affecting the transposition of TnA. The deletions were mapped by digestion with restriction nucleases and electron microscopic analysis of DNA hetero-duplexes and were found to include one of the inverted repeated sequences or lie in the central portion of TnA. Complementation experiments were attempted between these plasmids and another compatible plasmid carrying a deletion in TnA that abolished its ampicillin resistance. The results of the deletion data indicate that approximately 2 X 10(6) daltons of TnA is required for transposition; the complementation experiments suggest that the terminal inverted repetition and the central region of TnA play different essential roles in TnA transposition. PMID:322140

Heffron, F; Bedinger, P; Champoux, J J; Falkow, S

1977-02-01

129

Effect of Using Fenugreek, Parsley and Sweet Basil Seeds as Feed Additives on the Performance of Broiler Chickens  

Directory of Open Access Journals (Sweden)

Full Text Available A research study was conducted to find the effect of Fenugreek (Trigonella Foenum-Graecum L., parsley (Petroselium sativam L. and Sweet Basil (Ocimum basilicum L. seeds as natural feed additives on broiler performance. A total of 120 day-old chicks were reared for 42 days. Feed and water were provided ad libitum. Chicks were divided into four treatments (30 birds each. Each treatment contained three replicates of 10 birds. Each treatment was fed on one of the following experimental diets:1 Control diets (without supplementation. 2 Control diets supplied with Fenugreek at 3 g/kg of the diet. 3 Control diets supplied with parsley at 3 g/kg of the diet. 4 Control diets supplied with Basil at 3 g/kg of the diet. Chicks fed basil diets had significantly (p<0.05 heaviest body weight than those fed the control and fenugreek diets. Carcass characteristics had no significant differences. Significant reduction occurred in serum cholesterol as compared to control diets. It would suggested that the supplementation of broiler chicks diets with (3 g/kg basil or parsley seeds improved productive performance.

Rabia J. Abbas

2010-01-01

130

Characterization of Sleeping Beauty Transposition and Its Application to Genetic Screening in Mice  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The use of mutant mice plays a pivotal role in determining the function of genes, and the recently reported germ line transposition of the Sleeping Beauty (SB) transposon would provide a novel system to facilitate this approach. In this study, we characterized SB transposition in the mouse germ line and assessed its potential for generating mutant mice. Transposition sites not only were clustered within 3 Mb near the donor site but also were widely distributed outside this cluster, indicating...

Horie, Kyoji; Yusa, Kosuke; Yae, Kojiro; Odajima, Junko; Fischer, Sylvia E. J.; Keng, Vincent W.; Hayakawa, Tomoko; Mizuno, Sumi; Kondoh, Gen; Ijiri, Takashi; Matsuda, Yoichi; Plasterk, Ronald H. A.; Takeda, Junji

2003-01-01

131

Uranium veins in Portugal  

International Nuclear Information System (INIS)

Vein-type uranium deposits in Portugal demonstrate a broad temporal and physical spectrum from intragranitic hydrothermal jasper-type veins formed at moderately high temperatures, through lower temperature quartz veins and peribatholithic disseminated mineralization of 'Iberian-type', to undoubted supergene enrichments in surface-related planar traps such as weathered basic dikes. All appear to be in close spatial relationship to 'fertile' Hercynian granites in which uraninite of low thorium content is the main contributor to the enriched uranium levels. The availability of this large source of labile uranium, a pervasive fracture network and a series of tectonic and intrusive events which could generate hydrothermal circulation, allow several alternative genetic models for the mineralization. It now appears that the classic hydrothermal pitchblende veins within the granite are most likely of late-Hercynian age. Many of the mineralogical and depositional characteristics of the lower temperature 'Iberian-type' deposits suggest a temporal continuity to this mineralization but, as yet, no supporting age data are available. It is conceded, therefore, that a considerable time-gap could occur between the two episodes, with the peribatholithic mineralization resulting from later rejuvenation of the hydrothermal convective system. (author)

1986-01-01

132

Pineal veins in vertebral angiography.  

Science.gov (United States)

Angiographic patterns of pineal veins in normal and pathological conditions are examined. The diagnostic value of these veins for midline growths is limited owing to their inconstant visualization, multifarious angiographic patterns and minute size. With this in mind, greater significance of classical displacements of the internal and basal veins is outlined. PMID:1196485

Turtas, S

1975-11-21

133

Authentication of organically and conventionally grown basils by gas chromatography/mass spectrometry chemical profiles.  

Science.gov (United States)

Basil plants cultivated by organic and conventional farming practices were accurately classified by pattern recognition of gas chromatography/mass spectrometry (GC/MS) data. A novel extraction procedure was devised to extract characteristic compounds from ground basil powders. Two in-house fuzzy classifiers, i.e., the fuzzy rule-building expert system (FuRES) and the fuzzy optimal associative memory (FOAM) for the first time, were used to build classification models. Two crisp classifiers, i.e., soft independent modeling by class analogy (SIMCA) and the partial least-squares discriminant analysis (PLS-DA), were used as control methods. Prior to data processing, baseline correction and retention time alignment were performed. Classifiers were built with the two-way data sets, the total ion chromatogram representation of data sets, and the total mass spectrum representation of data sets, separately. Bootstrapped Latin partition (BLP) was used as an unbiased evaluation of the classifiers. By using two-way data sets, average classification rates with FuRES, FOAM, SIMCA, and PLS-DA were 100 ± 0%, 94.4 ± 0.4%, 93.3 ± 0.4%, and 100 ± 0%, respectively, for 100 independent evaluations. The established classifiers were used to classify a new validation set collected 2.5 months later with no parametric changes except that the training set and validation set were individually mean-centered. For the new two-way validation set, classification rates with FuRES, FOAM, SIMCA, and PLS-DA were 100%, 93%, 97%, and 100%, respectively. Thereby, the GC/MS analysis was demonstrated as a viable approach for organic basil authentication. It is the first time that a FOAM has been applied to classification. A novel baseline correction method was used also for the first time. The FuRES and the FOAM are demonstrated as powerful tools for modeling and classifying GC/MS data of complex samples, and the data pretreatments are demonstrated to be useful to improve the performance of classifiers. PMID:23398171

Wang, Zhengfang; Chen, Pei; Yu, Liangli; Harrington, Peter de B

2013-03-01

134

Comportamento fenotípico e genotípico de populações de manjericão Phenotypic and genotypic behavior of basil populations  

Directory of Open Access Journals (Sweden)

Full Text Available Genótipos de manjericão (Ocimum basilicum L. apresentam diferentes teores, rendimentos e composições químicas de óleos essenciais. Fatores influenciam na produção do óleo essencial de manjericão, como a cultivar plantada e o método de cultivo. O estudo dos parâmetros genéticos tem sido ferramenta útil na identificação de genótipos superiores. Este trabalho teve o objetivo de estimar alguns parâmetros genéticos associados ao comportamento produtivo de seis populações de manjericão nos anos agrícola 2004/05 e 2005/06. As características massa seca de folha + inflorescência e rendimento de óleo essencial apresentaram grande variabilidade por forte influência dos anos estudados. Já o teor de linalol manteve sua produtividade estável ao longo dos dois anos. Teor e rendimento de óleo essencial e teor de linalol no óleo essencial apresentaram herdabilidades altas na análise conjunta, indicando controle genético e grande possibilidade de serem transmitidas para as gerações futuras. Na análise conjunta as populações PI 197442-S3-bulk 3, PI 197442-S3-bulk 5 e PI 197442-S3-bulk 8 apresentaram os maiores teores e rendimentos de óleo essencial. Quanto ao constituinte químico majoritário do óleo essencial, o linalol, todas as populações apresentaram teores semelhantes, diferindo apenas na presença de alguns constituintes químicos minoritários.Basil (Ocimum basilicum L. genotypes present different contents, yields and chemical constituents in its essential oils. Factors influence the essential oil production of basil, such as cultivar and cultivation method. The study of genetic parameters is a useful tool to identify superior genotypes. In this work we estimated some genetic parameters associated to the production behavior of six basil populations cultivated in 2004/05 and 2005/06. The variables dry weight of leaves + inflorescences and essential oil yield presented high variability because of strong influence of the studied years. Linalool content presented constant values during the two years. Essential oil content and yield and linalool content in the essential oil presented high herdability in the combined analyses, indicating genetic control and great possibilities to transmit them to the following generations. The combined analyses showed highest essential oil content and yield for the populations PI 197442-S3-bulk 3, PI 197442-S3-bulk 5 and PI 197442-S3-bulk 8. For the major chemical constituent of the essential oil, linalool, all the populations presented similar content. Only the minor chemical constituents were different.

Arie F Blank

2010-09-01

135

Extrahepatic portal vein aneurysm.  

Science.gov (United States)

Portal vein aneurysms (PVAs) are usually incidental on imaging and asymptomatic. If it is symptomatic or associated with a pathologic finding, a treatment is recommended. We report a case of a 75-year-old Caucasian man presenting with symptomatic and size-increasing portosplenomesenteric aneurysms. Interventional radiology was not indicated because of the large size. A surgical approach was chosen for the patient. Surgical technique consists of an aneurysmorrhaphy in the first time and in the second time, a Goretex prosthesis placement involving the vein. Early complication was treated with a radiologic approach. Six months after surgery, patient had no more symptoms. PVA management remains a surgical challenge for surgeon, for timing and type of treatment. PMID:24456867

Levi Sandri, Giovanni Battista; Sulpice, Laurent; Rayar, Michel; Bosquet, Elise; Boudjema, Karim; Meunier, Bernard

2014-07-01

136

Varicose Vein Surgery  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The treatment of superficial venous disease and chronic venous insufficiency continues to evolve, and the interest in venous disease has matched that in arterial disease in vascular medicine. A better understanding of venous anatomy and pathophysiology and the development of newer, more efficient diagnostic technology have allowed clinicians to utilize minimally invasive techniques in the treatment of varicose veins. These techniques have reduced recurrence and improved overall quality of lif...

2005-01-01

137

Alternative autogenous vein grafts to the inadequate saphenous vein.  

Science.gov (United States)

Autogenous veins other than single-length greater saphenous vein were used in 150 operations to revascularize the extremities of 138 patients; three operations were for upper extremity ischemia and four were lower extremity reconstructions with lesser saphenous vein grafts. The remaining 143 bypasses were performed to revascularize lower extremities in 131 patients. Arm vein grafts were used in 102 operations, and 14 different combinations of vein segments were used to construct 41 totally autogenous composite vein grafts. Tissue necrosis or rest pain was the indication for 70% of arm vein bypasses; 52% of these grafts extended to an infrapopliteal artery. The 1-, 3-, and 5-year patency rates were 82%, 69%, and 60%, resulting in limb salvage rates of 93%, 91%, and 81%, respectively. Composite autogenous vein grafts resulted in a 1-year limb salvage rate of 79% in a select group of elderly patients with advanced arterial disease, poor runoff, and profound ischemia. Limb salvage was the indication for 93% of these operations; tissue necrosis was present in 71% while 80% required infrapopliteal reconstructions--37% to a peroneal artery and 29% to the ankle or foot. Successful limb salvage has been accomplished with alternative autogenous veins when the greater saphenous vein is missing or inadequate, dramatically reducing the use of prosthetic conduits in our practice. PMID:3775652

Harris, R W; Andros, G; Salles-Cunha, S X; Dulawa, L B; Oblath, R W; Apyan, R

1986-11-01

138

Optimisation of microencapsulation of holy basil essential oil in gelatin by response surface methodology.  

Science.gov (United States)

To protect holy basil essential oil (HBEO) from volatilisation and oxidation, microencapsulation by simple coacervation of gelatin was developed. An optimal encapsulating condition obtained from response surface methodology (RSM) was a gelatin concentration of 11.75% (w/v) and an HBEO amount of 31ml, which provided the greatest yield, oil content, and encapsulation efficiency of 98.80%, 66.50%, and 95.41%, respectively. Scanning electron microscope (SEM) revealed that the internal surface of the microcapsule was honeycomb-like networks containing nonhomogeneous distributions of HBEO. Fourier transform infrared spectroscopy (FTIR) indicated that there was no significant interaction between the HBEO and gelatin. Under storage conditions at 60°C for 49days equivalent to 25°C for 18months, small decreases in the HBEO retention rate and the antioxidant activity were observed. Thus, the microencapsulated formulation has potential to be applied to other volatile compounds. PMID:24360456

Sutaphanit, Polin; Chitprasert, Pakamon

2014-05-01

139

Chemical composition and antimicrobial properties of different basil essential oils chemotypes from Togo  

Directory of Open Access Journals (Sweden)

Full Text Available The aerial parts essential oils of Ocimum basilicum (Lamiaceae from Togo were steam-distilled and investigated for their percentage composition (GC and GC/MS and in vitro antimicrobial activities. Five oil chemotypes were identified and classified as follows in line with their principal components: estragole type; linalool/estragole type; methyleugenol type; methyleugenol/t-anethole type; t-anethole type. The in vitro microbiological experiments revealed that only the methyleugenol and methyleugenol/t-anethole chemotypes were active against tested fungi and bacteria. Their minimum inhibitory concentrations (MIC ranged from 80 to 150 µl.l-1 and from 200 to 500 µl.l-1 respectively. Likewise, on tested bacteria the MIC varied from 200 µl.l-1 to 400 µl.l-1 and from 250 to 500 µl.l-1 respectively. These findings are supportive of the potential of both basil oil chemotypes for use as active ingredients in natural antibiotic drugs.

Koffi Koba

2009-06-01

140

Effect of Moringa (Moringa oleifera) leaf powder and sweet basil (Ocimum basilicum) leaf paste on sensory and nutritional qualities of beef and ham burgers – A preliminary study  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Moringa leaf powder and sweet basil leaf paste are commonly used in local dishes in Ghana for purposes of flavour enhancement and nutrient supplements. This study was conducted to determine the effects of Moringa (Moringa oleifera) leaf powder (MLP) and Sweet basil (Ocimum basilicum) leaf paste (SBLP) on the sensory characteristics and nutritional compositions of beef and hamburgers. MLP and SBLP were incorporated at 0g (Control, T1), 2g, 4g and 6g/kg meat (T2, T...

Gabriel Teye; Moses Teye; Bright Mustapha; Alexander Abu

2013-01-01

 
 
 
 
141

Effects of drying methods on qualitative and quantitative properties of essential oil of two basil landraces.  

Science.gov (United States)

Sweet basil, a plant that is extensively cultivated in some countries, is used to enhance the flavour of salads, sauces, pasta and confectioneries as both a fresh and dried herb. To determine the effect of drying methods on qualitative and quantitative characteristics of the plant and essential oil of basil, two landraces, Purple and Green, were dried in sunlight, shade, mechanical ovens at 40 °C and 60 °C, a microwave oven at 500 W and by freeze-drying. For comparison, the essential oils of all samples were extracted by hydrodistillation and analyzed using GC and GC-MS. The highest essential oil yields (v/w on dry weight basis) were obtained from shade-dried tissue in both landraces followed by the freeze-dried sample of the purple landrace and the fresh sample of green landrace. Increasing the drying temperature significantly decreased the essential oil content of all samples. Significant changes in the chemical profile of the essential oils from each of the landrace were associated with the drying method, including the loss of most monoterpene hydrocarbons, as compared with fresh samples. No significant differences occurred among several constituents in the extracted essential oils, including methyl chavicol (estragole), the major compound in the oil of both landraces, whether the plants were dried in the shade or sun, oven at 40 °C or freeze-dried, as compared with a fresh sample. The percentage methyl chavicol in the oil, however, decreased significantly when the plant material was dried in the oven at 60 °C or microwaved. In addition, linalool, the second major compound in the purple landrace, and geranial and neral, major compounds in the green landrace, decreased significantly when the plant tissue was dried in the oven at 60 °C or microwaved. PMID:23870979

Ghasemi Pirbalouti, Abdollah; Mahdad, Elahe; Craker, Lyle

2013-12-01

142

Control of transposon Tn5 transposition in Escherichia coli.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Tn5 is a composite transposable element in which the insertion sequences IS50R and IS50L bracket a central region encoding kanamycin resistance (kanr). IS50R encodes a functional transposase, whereas IS50L contains the promoter of the kanr gene. To determine the relative activities of IS50R and IS50L in transposition we examined the structures of chimeric DNA molecules generated by insertion of segments of pBR322::Tn5 dimeric plasmids into red- lambda phage in recA- Escherichia coli. Restrict...

1982-01-01

143

UV light induces IS10 transposition in Escherichia coli.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A new mutagenesis assay system based on the phage 434 cI gene carried on a low-copy number plasmid was used to investigate the effect of UV light on intermolecular transposition of IS10. Inactivation of the target gene by IS10 insertion was detected by the expression of the tet gene from the phage 434 PR promoter, followed by Southern blot analysis of plasmids isolated from TetR colonies. UV irradiation of cells harboring the target plasmid and a donor plasmid carrying an IS10 element led to ...

Eichenbaum, Z.; Livneh, Z.

1998-01-01

144

Robustness of entangled states that are positive under partial transposition  

CERN Document Server

We study robustness of bipartite entangled states that are positive under partial transposition (PPT). It is shown that almost all PPT entangled states are unconditionally robust, in the sense, both inseparability and positivity are preserved under sufficiently small perturbations in its immediate neighborhood. Such unconditionally robust PPT entangled states lie inside an open PPT entangled ball. We construct examples of such balls whose radii are shown to be finite and can be explicitly calculated. This provides a lower bound on the volume of all PPT entangled states. Multipartite generalization of our constructions are also outlined.

Bandyopadhyay, Somshubhro; Roychowdhury, Vwani

2007-01-01

145

Venous variations in neck region: cephalic vein  

Directory of Open Access Journals (Sweden)

Full Text Available The cephalic vein lies in the deltopectoral groove, and passes throught the infraclavicular fossa, and drains into the axillary vein. It may communicate with the external jugular vein via a branch positioned anterior to the clavicle before emptying into the axillary vein. In this case multiple variations were found in the veins of the neck region: cephalic vein, jugular vein, and facial vein.The cephalic vein in the left side passed between the clavicular and sternal heads of the pectoralis major muscle. The cephalic and the external jugular veins were joined and made a common trunk at the anterior border of clavicle. Then opened into the junction of the subclavian and internal jugular veins below the clavicle. The facial and retromandibular veins were built up the external jugular vein. The anterior jugular vein was absent.

Kim DI

2010-12-01

146

Retroaortic left renal vein joining the left common iliac vein  

International Nuclear Information System (INIS)

Retroaortic left renal vein joining the left common iliac vein is a rare congenital anomaly in the development of the inferior vena cava. To our knowledge, only one case has been reported in the literature; however, its imaging features have never been described. A 27-year-old male presented with a 1-year history of recurrent right flank pain, dysuria, hematuria, and fever (39 C). Computed tomography and MR venography showed a retroaortic left renal vein joining the left common iliac vein. We present the CT and MR venography findings and discuss their feasibility in showing this congenital anomaly. (orig.)

2000-11-01

147

Midterm results after arterial switch operation for transposition of the great arteries: a single centre experience  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background The arterial switch operation (ASO has become the surgical approach of choice for d-transposition of the great arteries (d-TGA. There is, however an increased incidence of midterm and longterm adverse sequelae in some survivors. In order to evaluate operative risk and midterm outcome in this population, we reviewed patients who underwent ASO for TGA at our centre. Methods In this retrospective study 52 consecutive patients with TGA who underwent ASO between 04/1991 and 12/1999 were included. To analyze the predictors for mortality and adverse events (coronary stenoses, distortion of the pulmonary arteries, dilatation of the neoaortic root, and aortic regurgitation, a multivariate analysis was performed. The follow-up time was ranged from 1–10?years (mean 5?years, cumulative 260 patient-years. Results All over mortality rate was 15.4% and was only observed in the early postoperative period till 1994. The predictors for poor operative survival were low APGAR-score, older age at surgery, and necessity of associated surgical procedures. Late re-operations were necessary in 6 patients (13.6% and included a pulmonary artery patch enlargement due to supravalvular stenosis (n?=?3, coronary revascularisation due to coronary stenosis in a coronary anatomy type E, aortic valve replacement due to neoaortic valve regurgitation (n?=?2, and patch-plasty of a pulmonary vein due to obstruction (n?=?1. The dilatation of neoaortic root was not observed in the follow up. Conclusions ASO remains the procedure of choice for TGA with acceptable early and late outcome in terms of overall survival and freedom of reoperation. Although ASO is often complex and may be associated with morbidity, most patients survived without major complications even in a small centre.

Popov Aron Frederik

2012-09-01

148

Effect of Storage on Physico-Chemical, Microbiological and Sensory Quality of Bottlegourd-Basil Leaves Juice  

Directory of Open Access Journals (Sweden)

Full Text Available Bottlegourd (Lagenaria siceraria and Basil (Ocimum sanctum leaves blended juice was formulated with the help of Response surface methodology. The central composite design with 15 experimental combinations was used to optimize the product. The surface plots are used to represent the effects of variations in the ingredient levels. The physico-chemical, microbiological safety and sensory characteristics of the bottlegourd-basil blended juice in glass bottle were evaluated during 6 months at room temperature (28+2°C. There were no remarkable changes in pH, total soluble solids, total acidity (as citric acid and sensory scores of the juice during storage. Loss of vitamin C and ?-carotene were 74 and 57%, respectively after 6 months of storage. The result revealed that the blended juice was acceptable for 6 months and was microbiologically safe.

C.R. Vasudish

2011-01-01

149

The roles of a flavone-6-hydroxylase and 7-O-demethylation in the flavone biosynthetic network of sweet basil.  

Science.gov (United States)

Lipophilic flavonoids found in the Lamiaceae exhibit unusual 6- and 8-hydroxylations whose enzymatic basis is unknown. We show that crude protein extracts from peltate trichomes of sweet basil (Ocimum basilicum L.) cultivars readily hydroxylate position 6 of 7-O-methylated apigenin but not apigenin itself. The responsible protein was identified as a P450 monooxygenase from the CYP82 family, a family not previously reported to be involved in flavonoid metabolism. This enzyme prefers flavones but also accepts flavanones in vitro and requires a 5-hydroxyl in addition to a 7-methoxyl residue on the substrate. A peppermint (Mentha × piperita L.) homolog displayed identical substrate requirements, suggesting that early 7-O-methylation of flavones might be common in the Lamiaceae. This hypothesis is further substantiated by the pioneering discovery of 2-oxoglutarate-dependent flavone demethylase activity in basil, which explains the accumulation of 7-O-demethylated flavone nevadensin. PMID:23184958

Berim, Anna; Gang, David R

2013-01-18

150

Predictors of developmental outcomes in children with complete transposition.  

Science.gov (United States)

Cognitive, functional, educational achievement and behavioural measures were employed to assess neurobehavioral status in 57 of 60 participants who were initially enrolled in the Baltimore-Washington Infant Study, and who survived surgical correction of complete transposition (concordant atrioventricular and discordant ventriculo-arterial connections). Charts were reviewed to investigate the relationship between birth variables, surgical strategy and developmental outcomes. Higher preoperative weight was associated with better outcomes on the Stanford-Binet Short-term Memory subtest, while lower preoperative oxygen tension was associated with better outcomes on the Abstract/Visual Reasoning subtest and a test of Visual-Motor Integration. Longer total bypass time was associated with poor outcomes on the Short-term Memory subtests. Higher average flow rates during cooling and rewarming were associated with higher scores in the test of short term memory but poorer outcomes on a test for visual motor integration. Longer cooling times were associated with higher scores on the test for Visual-Motor Integration. Patients suffering seizures scored lower on the Stanford-Binet Composite, as well as in their tests of achievement. The data indicate that non-verbal skills may be particularly sensitive to variations in surgical strategies employed to correct complete transposition. Overt neurological events, such as seizures, were related to global deficits in intellectual functioning. Prospective studies evaluating systemic variations in surgical procedures and attempts to prevent and manage perioperative neurological events are important for further investigation of neurodevelopmental outcomes in children surviving surgical correction. PMID:9731650

Gomelsky, A; Holden, E W; Ellerbeck, K A; Brenner, J I

1998-07-01

151

Transposition of the Pterygopalatine Fossa during Endoscopic Endonasal Transpterygoid Approaches.  

Science.gov (United States)

Introduction Complete or partial removal of the pterygoid process provides lateral extension of the endonasal corridor necessary to approach the Meckel cave, infrapetrous skull base, and medial infratemporal fossa. This paper provides the anatomical foundations for the endoscopic endonasal transpterygoid approach with preservation of all neurovascular structures inside the pterygopalatine fossa. Methods Eight endoscopic transpterygoid approaches were performed in fresh cadaveric specimens. In all dissections the vidian nerve and the periosteal sac enclosing the pterygopalatine fossa were preserved. Results We reliably transposed the pterygopalatine fossa to approach the Meckel cave, infrapetrous skull base, and medial infratemporal region, preserving the neurovascular structures inside the pterygopalatine fossa in all specimens. Conclusions The transposition of the pterygopalatine fossa neurovascular structures for endoscopic endonasal approaches to the skull base is an alternative technique that is both feasible and desirable. The transposition requires no additional technical skills but requires comprehensive knowledge of its anatomy. The anatomical preservation of the neurovascular structures is potentially beneficial to the quality of life of patients. Clinical studies are necessary to prove the real benefits of this technique. PMID:24436922

Pinheiro-Neto, Carlos D; Fernandez-Miranda, Juan C; Prevedello, Daniel M; Carrau, Ricardo L; Gardner, Paul A; Snyderman, Carl H

2013-10-01

152

Genietic and molecular characterization of Candystripel transposition events in sorghum.  

Science.gov (United States)

In sorghum, the Candystripe1 (Cs1) transposable element causes a variegated pericarp phenotype due to its excision activity from the yl (yellow seed1) locus. The Y1 is a transcription regulator which is required for the biosynthesis of red 3-deoxyflavonoid pigments. Somatic variability in the transposition behavior of Cs1 was observed via biochemical analysis of 3-deoxyflavonoids in the leaf tissues of the Y1-cs alleles. Using somatic excisions of Cs1 as a tool, we establish that the Cs1 is active in young seedlings and the y1 locus is also functional in these tissues. Several somatic and germinal excision events were characterized and sequence analysis of independent events predominantly showed 2-bp footprints. Further, with the goal of ur.derstanding the properties of Cs1 that would facilitate the development of a transposon tagging system in sorghum, germinal excisions of Cs1 from y1 were used as a marker. Transposition of Cs1 was followed by characterization of putative insertion events. Genetic linkage between mutant phenotypes and the cosegregating restriction fragments of Cs1 provided additional evidence that Cs1 is an active transposable element in sorghum. PMID:16134333

Carvalho, Carlos H S; Boddu, Jayanand; Zehr, Usha B; Axtell, John D; Pedersen, Jeffery F; Chopra, Surinder

2005-07-01

153

Ruptured saphenous vein graft aneurysm.  

Science.gov (United States)

Ruptured saphenous vein graft (SVG) aneurysm is a rare source of significant morbidity and mortality. SVG is a common technique of coronary artery bypass grafting (CABG), but vein graft aneurysm and ruptured SVG aneurysm have not received the required attention as only few case reports exist. We present the case of a 50-year old man with ruptured vein graft aneurysm who had significant postoperative complications following surgery, and outline some preventive/management strategies. PMID:24288341

Gukop, Philemon; Karapanagiotidis, Georgios T; Chandrasekaran, Venkatachalam

2014-06-01

154

Popliteal vein aneurysm.  

Science.gov (United States)

Although popliteal venous aneurysms are uncommon, they are also potentially fatal because they can cause a pulmonary embolism. The authors report a case of a popliteal vein aneurysm in a healthy, asymptomatic 32-year-old patient as well as a review of the literature. Popliteal venous aneurysms are a rare but treatable cause of recurrent pulmonary embolism, with their true incidence probably being underestimated. Whenever possible, we recommend early surgical repair of both symptomatic and asymptomatic popliteal venous aneurysms because they are associated with an ill-defined risk of pulmonary embolism and death if left untreated. PMID:20103062

Roche-Nagle, Graham; Wooster, Douglas; Oreopoulos, George

2010-01-01

155

Symptomatic popliteal vein aneurysm.  

Science.gov (United States)

Popliteal vein aneurysms (PVAs) can have serious consequences, including pulmonary embolism and death. We report a case of PVA in a previously healthy 58-year-old female with a history of pain in her right popliteal fossa for the past 3 years. Patient had no history of trauma or claudication of the right leg. Following a preoperative venogram to confirm the diagnosis, the PVA was dissected circumferentially through a posterior incision. The aneurysm was resected and repaired with lateral venorrhaphy. Patient had an uneventful recovery. Due to the possibility of severe consequences, if left untreated, early surgical repair is highly recommended whether the patient has symptoms or not. PMID:24420057

Premaratne, Shyamal; Tan, Tze-Woei; Coulter, Amy H; Doumite, Darin; Zhang, Wayne W

2014-04-01

156

Scale-up micropropagation of sweet basil (Ocimum basilicum L.) in an airlift bioreactor and accumulation of rosmarinic acid.  

Science.gov (United States)

Nodal explants with lateral buds and leaf-derived suspension cultures of sweet basil, Ocimum basilicum L., were cultured in 5 l airlift bioreactors for three weeks, thereby increasing the fresh wt of suspension cultures 2.5-fold. Rosmarinic acid accumulated at 29 micromicrog g(-1) dry wt in the suspension culture but, for micropropagated plants, it reached 178 microg g(-1) dry wt. PMID:15127795

Kintzios, Spiridon; Kollias, Haralambos; Straitouris, Evangelos; Makri, Olga

2004-03-01

157

Effect of Using Fenugreek, Parsley and Sweet Basil Seeds as Feed Additives on the Performance of Broiler Chickens  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A research study was conducted to find the effect of Fenugreek (Trigonella Foenum-Graecum L.), parsley (Petroselium sativam L.) and Sweet Basil (Ocimum basilicum L.) seeds as natural feed additives on broiler performance. A total of 120 day-old chicks were reared for 42 days. Feed and water were provided ad libitum. Chicks were divided into four treatments (30 birds each). Each treatment contained three replicates of 10 birds. Each treatment was fed on one o...

2010-01-01

158

Superficial veins: treatment options and techniques for saphenous veins, perforators, and tributary veins.  

Science.gov (United States)

Superficial venous insufficiency is a common cause of lower-extremity symptoms of pain and swelling. A thorough understanding of the superficial venous anatomy, as well as gaining knowledge of treatment approaches, can direct one's approach to providing an appropriate treatment for desired and durable outcomes. This article reviews the details of anatomy and treatment of the saphenous veins, perforator veins, and tributary veins. PMID:24840962

Winokur, Ronald S; Khilnani, Neil M

2014-06-01

159

Induction of transpositions of MGE Dm412 by ?-radiation in an isogenic line of Drosophila melanogaster  

International Nuclear Information System (INIS)

In an isogenic line of Drosophila, transpositions of mobile genetic elements (MGE) Dm412 were induced by ?-radiation at doses of 300, 800, and 1300 R. The rates of induced transpositions were (for each dose, respectively) 3.9 x 10-3, 1.0 x 10-2, and 1.87 x 10-2 events per occupied site per haploid genome of the isogenic line per generation. Thus, the transposition rate increased linearly with the radiation dose. The specific rate of ?-radiation-induced transpositions was (1.3 ± 0.6) x 10-5 per occupied site per haploid genome of the isogenic line per Roentgen per generation. ?-Radiation-induced hot transposition sites and haplotypes, very similar to those induced by heat shock, were found. It was suggested that the mechanism of induction by ?-radiation involves the heat shock system. Thus, it is more similar to the mechanism of temperature induction than to the direct mutational effect of ?-radiation. Estimates of induced transposition rates per genome for each dose were calculated as 1.1, 3.0, and 5.6 events, respectively, per genome per generation. This level probably corresponds to the subthreshold level of genomes near the open-quotes catastrophic border of transpositional losses.close quotes 21 refs., 1 fig., 4 tabs

1995-06-01

160

Leiomyosarcoma of the renal vein  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Leiomyosarcoma of the renal vein is a rare tumor of complex diagnosis. We presented a case of renal vein leiomyosarcoma detected in a routine study. The primary treatment was complete surgical removal of the mass. In cases where surgical removal is not possible the prognosis is poor, with high rates of local recurrence and distant spread.

Lemos, Gustavo C.; El Hayek, Omar R.; Marcelo Apezzato

2003-01-01

 
 
 
 
161

How Is Deep Vein Thrombosis Treated?  

Science.gov (United States)

... the NHLBI on Twitter. How Is Deep Vein Thrombosis Treated? Doctors treat deep vein thrombosis (DVT) with medicines and other devices and therapies. ... wear compression stockings. Rate This Content: Deep Vein Thrombosis Clinical Trials Clinical trials are research studies that ...

162

The DNA-bending protein HMGB1 is a cellular cofactor of Sleeping Beauty transposition  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Sleeping Beauty (SB) is the most active Tc1/ mariner-type transposon in vertebrates. SB contains two transposase-binding sites (DRs) at the end of each terminal inverted repeat (IR), a feature termed the IR/DR structure. We investigated the involvement of cellular proteins in the regulation of SB transposition. Here, we establish that the DNA-bending, high-mobility group protein, HMGB1 is a host-encoded cofactor of SB transposition. Transposition was severely reduced in mouse cells deficient ...

Zayed, H.; Izsvak, Z.; Khare, D.; Heinemann, U.; Ivics, Z.

2003-01-01

163

The economics of vein disease.  

Science.gov (United States)

The management of cosmetic vein problems requires a very different approach than that for the majority of most other vascular disorders that occur in a vascular surgery practice. This article focuses on the business aspects of a cosmetic vein practice, with particular attention to the uniqueness of these issues. Managing patient expectations is critical to the success of a cosmetic vein practice. Maneuvering within the insurance can be difficult and frustrating for both the patient and the practice. Practices should use cost accounting principles to evaluate the success of their vein work. Vein surgery--especially if performed within the office--can undergo an accurate break-even analysis to determine its profitability. PMID:17911565

Sales, Clifford M; Podnos, Joan; Levison, Jonathan

2007-09-01

164

Vein type uranium deposits  

International Nuclear Information System (INIS)

Veins are tabular- or sheet-like masses of minerals occupying or following a fracture or a set of fractures in the enclosing rock. They have been formed later than the country rock and fractures, either by filling of the open spaces or by partial or complete replacement of the adjoining rock or most commonly by both of these processes combined. This volume begins with the occurrences and deposits known from old shield areas and the sedimentary belts surrounding them. They are followed by papers describing the European deposits mostly of Variscan age, and by similar deposits known from China being of Jurassic age. The volume is completed by two papers which do not fit exactly in the given scheme. A separate abstract was prepared for each of the 25 papers in this report

1986-01-01

165

The transposition of musical knowledge in intellectual education  

Directory of Open Access Journals (Sweden)

Full Text Available The construction of European citizenship in the era of complexity requires that the transmission of knowledge be directed towards an intellectual formation, that is, the ‘shaping’ of a critical mind, one that is able to problematize, and hence to discern. This can be achieved by educating towards comprehension. In facing this issue, musicologists ask themselves ‘what to teach’ and ‘how to teach’ it, in order to prepare students to the comprehension of music – these questions form the basis of music didactics as the science of ‘transposing’ savoir savant (learned knowledge into savoir enseigné (didactic knowledge. The paper proposes a model appraoch to music comprehension, through the didactic transposition of a piece by Claude Debussy, La cathédrale engloutie. The example is based on a strategy developed by musicological and methodological-didactic research, and focuses on the continuity among listening, music performance, and music history.

Carla Cuomo

2014-05-01

166

Transposition of the gas directive in French law  

International Nuclear Information System (INIS)

On September 25, 2002, the French government adopted the project of law relative to the energy markets. This project of law takes up the essential part of the measures proposed by the directive no 98/30/CE of the European Union from June 22, 1998, about the 'common rules of the internal natural gas market'. This paper makes a brief comment of the version of this project adopted by the senate. It presents also the position of the French gas association (AFG) about this transposition, its action during the first phase of the parliamentary debate, and what will be AFG's role after the enforcement of this law. Finally, a testimony of the Swiss society of gas and waters industry (SSIGE) about the opening of the natural gas market is given in conclusion. (J.S.)

2002-01-01

167

Transposase concentration controls transposition activity: myth or reality?  

Science.gov (United States)

Deciphering the mechanisms underlying the regulation of DNA transposons might be central to understanding their function and dynamics in genomes. From results obtained under artificial experimental conditions, it has been proposed that some DNA transposons self-regulate their activity via overproduction inhibition (OPI), a mechanism by which transposition activity is down-regulated when the transposase is overconcentrated in cells. However, numerous studies have given contradictory results depending on the experimental conditions. Moreover, we do not know in which cellular compartment this phenomenon takes place, or whether transposases assemble to form dense foci when they are highly expressed in cells. In the present review, we focus on investigating the data available about eukaryotic transposons to explain the mechanisms underlying OPI. Data in the literature indicate that members of the IS630-Tc1-mariner, Hobo-Ac-Tam, and piggyBac superfamilies are able to use OPI to self-regulate their transposition activity in vivo in most eukaryotic cells, and that some of them are able to assemble so as to form higher order soluble oligomers. We also investigated the localization and behavior of GFP-fused transposases belonging to the mariner, Tc1-like, and piggyBac families, investigating their ability to aggregate in cells when they are overexpressed. Transposases are able to form dense foci when they are highly expressed. Moreover, the cellular compartments in which these foci are concentrated depend on the transposase, and on its expression. The data presented here suggest that sequestration in cytoplasmic or nucleoplasmic foci, or within the nucleoli, might protect the genome against the potentially genotoxic effects of the non-specific nuclease activities of eukaryotic transposases. PMID:23994686

Bire, Solenne; Casteret, Sophie; Arnaoty, Ahmed; Piégu, Benoît; Lecomte, Thierry; Bigot, Yves

2013-11-10

168

Ensemble predictions of runoff using hydrograph transpositions to ungauged basins  

Science.gov (United States)

Regionalisation is one common approach for modelling streamflow in ungauged basins. It is sometimes performed on the basis of ensemble modelling and model averaging through the play of parameters of rainfall-runoff models. We propose an original approach for ensemble modelling by transposing physically based time series rather than model's parameters. We applied the approach on 6 sub-basins of the Blavet river in Brittany (France) with area varying from 5 km² to 316 km². Inside this sample of gauged basins, the water provided by hillslopes to the network at a basin scale, called the net rainfall, is assessed by inverting their simple geomorphology based network transfer function. Those net rainfall time series, estimated at an hourly time step on each gauged basin separately, summarise the hydrological behaviour of their hillslopes without the need of any complex modelling. Moreover, it has the advantage of being relatively scale independent which enables its transposition among basins. Once this net rainfall is transposed to an ungauged basin, it is reconvoluted using its own transfer function in order to estimate the hydrograph therein. We propose to combine several gauged basins to perform ensemble modelling prediction. This ensemble modelling provides an indication of uncertainty. Although it is not a robust estimate of the possible flow range, it informs about the variability of basins behaviour inside the studied region and, as a consequence, the relative confidence in those transpositions of hydrograph. By selecting donor basins according to their similarity to the ungauged one, we aim to improve prediction accuracy, reduce uncertainty and check the best way to define hydrological similarity for the choice of the donor basin. It is demonstrated that spatial proximity provides a relatively robust estimate of the best donor basin, and giving more importance to similar basins does not necessarily lead to higher accuracy in simulations compared to a simple net rainfall average.

de Lavenne, Alban; Cudennec, Christophe

2014-05-01

169

Endoscopic endonasal transcavernous posterior clinoidectomy with interdural pituitary transposition.  

Science.gov (United States)

Object The object of this paper was to describe the surgical anatomy and technical nuances of the endonasal transcavernous posterior clinoidectomy approach with interdural pituitary transposition and to report the clinical outcome of this technical modification. Methods The surgical anatomy of the proposed approach was studied in 10 colored silicon-injected anatomical specimens. The medical records of 12 patients that underwent removal of the posterior clinoid(s) with this technique were reviewed. Results The natural anatomical corridor provided by the cavernous sinus is used to get access to the posterior clinoid by mobilizing the pituitary gland in an interdural fashion. The medial wall of the cavernous sinus is preserved intact and attached to the gland during its medial and superior mobilization. This provides protection to the gland, allowing for preservation of its venous drainage pathways. The inferior hypophyseal artery is transected to facilitate the manipulation of the medial wall of the cavernous sinus and pituitary gland. This approach was successfully performed in all patients, including 6 with chordomas, 5 with petroclival meningiomas, and 1 with an epidermoid tumor. No patient in this series had neurovascular injury related to the posterior clinoidectomy. There were no instances of permanent hypopituitarism or diabetes insipidus. Conclusions The authors introduce a surgical variant of the endoscopic endonasal posterior clinoidectomy approach that does not require intradural pituitary transposition and is more effective than the purely extradural approach. The endoscopic endonasal transcavernous approach facilitates the removal of prominent posterior clinoids increasing the working space at the lateral recess of the interpeduncular cistern, while preserving the pituitary function. PMID:24816325

Fernandez-Miranda, Juan C; Gardner, Paul A; Rastelli, Milton M; Peris-Celda, Maria; Koutourousiou, Maria; Peace, David; Snyderman, Carl H; Rhoton, Albert L

2014-07-01

170

A systems biology investigation of the MEP/terpenoid and shikimate/phenylpropanoid pathways points to multiple levels of metabolic control in sweet basil glandular trichomes.  

Science.gov (United States)

The glandular trichome is an excellent model system for investigating plant metabolic processes and their regulation within a single cell type. We utilized a proteomics-based approach with isolated trichomes of four different sweet basil (Ocimum basilicum L.) lines possessing very different metabolite profiles to clarify the regulation of metabolism in this single cell type. Significant differences in the distribution and accumulation of the 881 highly abundant and non-redundant protein entries demonstrated that although the proteomes of the glandular trichomes of the four basil lines shared many similarities they were also each quite distinct. Correspondence between proteomic, expressed sequence tag, and metabolic profiling data demonstrated that differential gene expression at major metabolic branch points appears to be responsible for controlling the overall production of phenylpropanoid versus terpenoid constituents in the glandular trichomes of the different basil lines. In contrast, post-transcriptional and post-translational regulation of some enzymes appears to contribute significantly to the chemical diversity observed within compound classes for the different basil lines. Differential phosphorylation of enzymes in the 2-C-methyl-d-erythritol 4-phosphate (MEP)/terpenoid and shikimate/phenylpropanoid pathways appears to play an important role in regulating metabolism in this single cell type. Additionally, precursors for different classes of terpenoids, including mono- and sesquiterpenoids, appear to be almost exclusively supplied by the MEP pathway, and not the mevalonate pathway, in basil glandular trichomes. PMID:18248593

Xie, Zhengzhi; Kapteyn, Jeremy; Gang, David R

2008-05-01

171

Chloroplast DNA phylogeography of holy basil (Ocimum tenuiflorum) in Indian subcontinent.  

Science.gov (United States)

Ocimum tenuiflorum L., holy basil "Tulsi", is an important medicinal plant that is being grown and traditionally revered throughout Indian Subcontinent for thousands of years; however, DNA sequence-based genetic diversity of this aromatic herb is not yet known. In this report, we present our studies on the phylogeography of this species using trnL-trnF intergenic spacer of plastid genome as the DNA barcode for isolates from Indian subcontinent. Our pairwise distance analyses indicated that genetic heterogeneity of isolates remained quite low, with overall mean nucleotide p-distance of 5 × 10(-4). However, our sensitive phylogenetic analysis using maximum likelihood framework was able to reveal subtle intraspecific molecular evolution of this species within the subcontinent. All isolates except that from North-Central India formed a distinct phylogenetic clade, notwithstanding low bootstrap support and collapse of the clade in Bayesian Inference. North-Central isolates occupied more basal position compared to other isolates, which is suggestive of its evolutionarily primitive status. Indian isolates formed a monophyletic and well-supported clade within O. tenuiflorum clade, which indicates a distinct haplotype. Given the vast geographical area of more than 3 million km(2) encompassing many exclusive biogeographical and ecological zones, relatively low rate of evolution of this herb at this locus in India is particularly interesting. PMID:24523650

Bast, Felix; Rani, Pooja; Meena, Devendra

2014-01-01

172

Chloroplast DNA Phylogeography of Holy Basil (Ocimum tenuiflorum) in Indian Subcontinent  

Science.gov (United States)

Ocimum tenuiflorum L., holy basil “Tulsi”, is an important medicinal plant that is being grown and traditionally revered throughout Indian Subcontinent for thousands of years; however, DNA sequence-based genetic diversity of this aromatic herb is not yet known. In this report, we present our studies on the phylogeography of this species using trnL-trnF intergenic spacer of plastid genome as the DNA barcode for isolates from Indian subcontinent. Our pairwise distance analyses indicated that genetic heterogeneity of isolates remained quite low, with overall mean nucleotide p-distance of 5 × 10?4. However, our sensitive phylogenetic analysis using maximum likelihood framework was able to reveal subtle intraspecific molecular evolution of this species within the subcontinent. All isolates except that from North-Central India formed a distinct phylogenetic clade, notwithstanding low bootstrap support and collapse of the clade in Bayesian Inference. North-Central isolates occupied more basal position compared to other isolates, which is suggestive of its evolutionarily primitive status. Indian isolates formed a monophyletic and well-supported clade within O. tenuiflorum clade, which indicates a distinct haplotype. Given the vast geographical area of more than 3?million?km2 encompassing many exclusive biogeographical and ecological zones, relatively low rate of evolution of this herb at this locus in India is particularly interesting.

Rani, Pooja

2014-01-01

173

Maria Bonita: cultivar de manjericão tipo linalol Maria Bonita: a linalool type basil cultivar  

Directory of Open Access Journals (Sweden)

Full Text Available 'Maria Bonita' é proveniente do acesso PI 197442, do Banco de Germoplasma North Central Regional PI Station, EUA. É uma cultivar de manjericão de copa arredondada, pétalas róseas e sépalas roxas, indicada para o Nordeste brasileiro. Apresenta hábito de crescimento ereto, o que favorece a colheita manual e mecanizada. A produtividade média de matéria seca de folhas e inflorescências foi de 20,97 g por planta, 26,34% superior à testemunha 'Genovese'. Possui teor de 4,96% de óleo essencial, e rendimento de 1,18 mL por planta. Seu componente principal é o linalol (78,12%. Seu óleo essencial possui atividades antinociceptiva e antigiardial.'Maria Bonita' is derived from the accession PI 197442, from the Germplasm Bank North Central Regional PI Station, USA. It is a basil cultivar with a rounded canopy, rose petals and purple sepals, and it is indicated for Brazilian Northeast region. 'Maria Bonita' presents erect growth habit, which is an advantage for both manual and mechanized harvest. The average yield of leaves dry weight and inflorescences was 20.97 g per plant, 26.34% higher than the control 'Genovese'. It presents 4.96% essential oil content, and yield of 1.18 mL per plant. The major chemical constituent is linalool (78.12%. Its essential oil presents antinociceptive and antigiardial activities.

Arie Fitzgerald Blank

2007-12-01

174

[Anesthetic management of a pregnant patient with congenitally corrected transposition of the great arteries for emergency cesarean delivery].  

Science.gov (United States)

A 30-year-old woman at 35 weeks' gestation with congenitally corrected transposition of the great arteries (CCTGA), whose associated anomalies were VSD, ASD and pulmonary stenosis, underwent emergency cesarean delivery under general anesthesia. She had hypoxemia due to right-to-left shunt. We discussed with obstetricians and pediatric cardiologists about her at 25 weeks' gestation. Discussed points included: 1) delivery after 30 weeks' gestation, 2) her cardiac function and anomalies, 3) cesarean delivery under general anesthesia in case of emergency, 4) management of a sleeping baby after cesarean delivery by pediatricians. Cyanosis and heart failure were noted worsening during pregnancy. General anesthesia was induced by midazolam and fentanyl following cannulation of radial artery and right internal jugular vein for blood pressure and CVP monitoring. Anesthesia was maintained with sevoflurane and fentnyl. Dopamine and dobutamine were used to support blood pressure and cardiac function. After delivery, because of decreased CVP, lactated Ringer's solution was administrated. After operation, the patient was hemodynamically stable and trachea was extubated. Anesthetic management of the patient depends on the anatomical defects of CCTGA and associated conditions. Anesthesiologist should obtain information about a pregnant woman with CCTGA from cardiologists and obstetricians in early gestation to manage patient successfully. PMID:12649881

Tsuda, Atsushi; Nagaoka, Kyoko; Hashiguchi, Hideo; Shibata, Shigeki; Shibata, Itsuko; Nagatani, Atsuko

2003-02-01

175

Weighted genomic distance can hardly impose a bound on the proportion of transpositions  

CERN Document Server

Genomic distance between two genomes, i.e., the smallest number of genome rearrangements required to transform one genome into the other, is often used as a measure of evolutionary closeness of the genomes in comparative genomics studies. However, in models that include rearrangements of significantly different "power" such as reversals (that are "weak" and most frequent rearrangements) and transpositions (that are more "powerful" but rare), the genomic distance typically corresponds to a transformation with a large proportion of transpositions, which is not biologically adequate. Weighted genomic distance is a traditional approach to bounding the proportion of transpositions by assigning them a relative weight {\\alpha} > 1. A number of previous studies addressed the problem of computing weighted genomic distance with {\\alpha} \\leq 2. Employing the model of multi-break rearrangements on circular genomes, that captures both reversals (modelled as 2-breaks) and transpositions (modelled as 3-breaks), we prove th...

Jiang, Shuai

2010-01-01

176

Maxillary canine-first premolar transposition in the permanent dentition: treatment considerations and a case report.  

LENUS (Irish Health Repository)

Transposition is defined as the interchange of position between two adjacent teeth within the same quadrant of the dental arch. Permanent maxillary canine-premolar transposition is the most commonly observed transposition in the human dentition. Its prevalence is relatively low and its aetiology remains unclear, although it has been associated with genetic factors. It may also be related to a combination of localised factors such as malformation of adjacent teeth, tooth agenesis, retention of the deciduous canine and a history of local trauma. Treatment is selected on an individual case basis after thoroughly considering the overall facial and dental characteristics, duration of treatment, cost, patient preference and the orthodontist\\'s experience. This article provides a case report of maxillary canine transposition in the permanent dentition, successfully managed with orthodontic treatment.

Synodinos, Philippos N

2010-12-01

177

Vein matching using artificial neural network in vein authentication systems  

Science.gov (United States)

Personal identification technology as security systems is developing rapidly. Traditional authentication modes like key; password; card are not safe enough because they could be stolen or easily forgotten. Biometric as developed technology has been applied to a wide range of systems. According to different researchers, vein biometric is a good candidate among other biometric traits such as fingerprint, hand geometry, voice, DNA and etc for authentication systems. Vein authentication systems can be designed by different methodologies. All the methodologies consist of matching stage which is too important for final verification of the system. Neural Network is an effective methodology for matching and recognizing individuals in authentication systems. Therefore, this paper explains and implements the Neural Network methodology for finger vein authentication system. Neural Network is trained in Matlab to match the vein features of authentication system. The Network simulation shows the quality of matching as 95% which is a good performance for authentication system matching.

Noori Hoshyar, Azadeh; Sulaiman, Riza

2011-10-01

178

Transposition of Reversed Ac Element Ends Generates Novel Chimeric Genes in Maize  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The maize Activator/Dissociation (Ac/Ds) elements are members of the hAT (hobo, Ac, and Tam3) superfamily of type II (DNA) transposons that transpose through a “cut-and-paste” mechanism. Previously, we reported that a pair of Ac ends in reversed orientation is capable of undergoing alternative transposition reactions that can generate large-scale chromosomal rearrangements, including deletions and inversions. We show here that rearrangements induced by reversed Ac ends transposition can j...

Zhang, Jianbo; Zhang, Feng; Peterson, Thomas

2006-01-01

179

Laparoscopic ovarian transposition before pelvic radiation in rectal cancer patient: safety and feasibility  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract Background Infertility due to pelvic radiation for advanced rectal cancer treatment is a major concern particularly in young patients. Pre-radiation laparoscopic ovarian transposition may offer preservation of ovarian function during the treatment however its use is limited. Aim The study investigates the safety, feasibility and effectiveness of pre-radiation laparoscopic ovarian transposition and its effect on ovarian function in the treatment o locall...

Al-Asari Sami; Abduljabbar Alaa

2012-01-01

180

Cardiac conduction abnormalities and rhythm changes after neonatal anatomical correction of transposition of the great arteries.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Seventy three infants who underwent neonatal anatomical correction for transposition of the great arteries with or without a ventricular septal defect were reviewed for evidence of conduction and rhythm abnormalities on preoperative and postoperative 12 lead electrocardiograms and during 24 hour Holter monitoring. There was a partial right bundle branch block pattern in 47% (29/62) of all patients and in 60% (24/40) of those with simple transposition. Complete right bundle branch block was no...

Menahem, S.; Ranjit, M. S.; Stewart, C.; Brawn, W. J.; Mee, R. B.; Wilkinson, J. L.

1992-01-01

 
 
 
 
181

CUBITAL TUNNEL SYNDROME: REVIEW OF 14 ANTERIOR SUBCUTANEOUS TRANSPOSITIONS OF THE VASCULARIZED ULNAR NERVE  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Anterior transposition of the ulnar nerve is widely implemented for treatment of cubital tunnel ?syndrome. However, preservation of the extrinsic blood supply of the ?ulnar nerve may result in better clinical outcomes. Fourteen patients with cubital tunnel ?syndrome, 11 ?men and 3 women, were treated by anterior subcutaneous transposition of the ulnar nerve. The extrinsic blood supply of the ulnar nerve was ?preserved. The average age at the time of operation was 33 years. The avera...

2005-01-01

182

Ventricular assist device outflow graft in congenitally corrected transposition of great arteries - a surgical challenge.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Congenitally corrected transposition of the great arteries is a complex congenital cardiac anomaly with a wide spectrum of morphologic features and clinical profiles. Most patients are diagnosed late in their life, undergoes surgical repairs, eventually leading to systemic ventricular failure needing heart transplant or mechanical circulatory assistance. As, aorta is located anterior to and left of the PA (Transposition of great arteries), the outflow graft of ventricular assist device traver...

Mohite, Prashant N.; Popov, Aron F.; Garcia, Diana; Hards, Rachel; Zych, Bartlomeij; Khaghani, Asghar; Simon, Andre R.

2012-01-01

183

Ventricular assist device outflow graft in congenitally corrected transposition of great arteries - a surgical challenge  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract Congenitally corrected transposition of the great arteries is a complex congenital cardiac anomaly with a wide spectrum of morphologic features and clinical profiles. Most patients are diagnosed late in their life, undergoes surgical repairs, eventually leading to systemic ventricular failure needing heart transplant or mechanical circulatory assistance. As, aorta is located anterior to and left of the PA (Transposition of great arteries), the outflow graft of ventricular a...

Mohite Prashant N; Popov Aron F; Garcia Diana; Hards Rachel; Zych Bartlomeij; Khaghani Asghar; Simon Andre R

2012-01-01

184

Ventricular assist device outflow graft in congenitally corrected transposition of great arteries - a surgical challenge  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Congenitally corrected transposition of the great arteries is a complex congenital cardiac anomaly with a wide spectrum of morphologic features and clinical profiles. Most patients are diagnosed late in their life, undergoes surgical repairs, eventually leading to systemic ventricular failure needing heart transplant or mechanical circulatory assistance. As, aorta is located anterior to and left of the PA (Transposition of great arteries), the outflow graft of ventricular assist device traver...

Mohite, Prashant N.; Popov, Aron F.; Garcia, Diana; Hards, Rachel; Zych, Bartlomeij; Khaghani, Asghar; Simon, Andre R.

2012-01-01

185

Transposition of the retrotransposon MAGGY in heterologous species of filamentous fungi.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

MAGGY is a gypsy-like LTR retrotransposon isolated from the blast fungus Pyricularia grisea (teleomorph, Magnaporthe grisea). We examined transposition of MAGGY in three P. grisea isolates (wheat, finger millet, and crabgrass pathogen), which did not originally possess a MAGGY element, and in two heterologous species of filamentous fungi, Colletotrichum lagenarium and P. zingiberi. Genomic Southern analysis of MAGGY transformants suggested that transposition of MAGGY occurred in all filamento...

Nakayashiki, H.; Kiyotomi, K.; Tosa, Y.; Mayama, S.

1999-01-01

186

Enhancement of Sleeping Beauty Transposition by CpG Methylation: Possible Role of Heterochromatin Formation  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The Sleeping Beauty (SB) transposase is the most active transposase in vertebrate cells, and the SB transposon system has been used as a tool for insertional mutagenesis and gene delivery. Previous studies have indicated that the frequency of chromosomal transposition is considerably higher in mouse germ cells than in mouse embryonic stem cells, suggesting the existence of unknown mechanisms that regulate SB transposition. Here, we demonstrated that CpG methylation of the transposon region en...

Yusa, Kosuke; Takeda, Junji; Horie, Kyoji

2004-01-01

187

Efficient transposition of the Tol2 transposable element from a single-copy donor in zebrafish  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The Tol2 transposable element is a powerful genetic tool in model vertebrates and has been used for transgenesis, insertional mutagenesis, gene trapping, and enhancer trapping. However, an in vivo transposition system using Tol2 has not yet been developed. Here we report the in vivo Tol2 transposition system in a model vertebrate, zebrafish. First, we constructed transgenic zebrafish that carried single-copy integrations of Tol2 on the genome and injected transposase mRNA into one-cell stage ...

Urasaki, Akihiro; Asakawa, Kazuhide; Kawakami, Koichi

2008-01-01

188

Transpositional behavior of the maize En/Spm element in transgenic tobacco  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The transposable element Enhancer (En/Spm) of Zea mays encodes the functions necessary for transposition of members of the En-I family of elements. En constructs were introduced into tobacco and transposition was demonstrated by cloning and DNA sequence analysis. Transcriptional analysis of En transgenic plants revealed 2.5 and 6 kb En homologous transcripts similar in size to those found in maize, in addition to aberrant splice products. Progeny analysis of a primary transformant indicates E...

Pereira, Andy; Saedler, Heinz

1989-01-01

189

Consórcio de manjericão (Ocimum basilicum L. e alface sob dois arranjos de plantas Intercrop of basil (Ocimum basilicum L. and lettuce under two plant arrangements  

Directory of Open Access Journals (Sweden)

Full Text Available Ocimum basilicum L. (Lamiaceae é comercialmente utilizada como aromatizante ou condimento preparado com suas folhas verdes e aromáticas, que podem ser usadas frescas ou secas. O objetivo deste trabalho foi avaliar a produção de biomassa de manjericão sob duas ou três fileiras no canteiro, consorciado ou não com alface. O manjericão e a alface foram alocados no campo em experimento conjunto, sendo constituídos cinco tratamentos da seguinte forma: duas fileiras solteiras de manjericão (M2 espaçadas de 0,50 m; três fileiras solteiras de manjericão espaçadas de 0,33 m (M3; quatro fileiras solteiras de alface espaçadas de 0,25 m (A4; duas fileiras solteiras de manjericão consorciadas com quatro fileiras de alface (M2A4 e três fileiras de manjericão consorciada com quatro fileiras de alface (M3A4. O delineamento utilizado foi em blocos casualizados, com oito repetições. As plantas de alface foram colhidas aos 48 dias após o transplantio e as de manjericão, em duas épocas, aos 96 e 113 dias após o transplantio (DAT. O consórcio não influenciou as áreas foliares nem as produções de folhas ou inflorescências do manjericão nem de cabeças comerciais ou não-comerciais da alface. No entanto, quanto ao arranjo de plantas, na segunda época de colheita, as plantas de manjericão cultivadas sob duas fileiras tiveram maior área foliar (2.076,99 cm² planta-1 e maior massa fresca de folhas (5.012,53 kg ha-1. Considerando-se que os valores da Razão de Área Equivalente - RAE na primeira e segunda colheita do manjericão foram maiores que 1,0, conclui-se que o consórcio manjericão com alface é viável. Recomenda-se o arranjo de três fileiras de manjericão alternadas com quatro fileiras de alface, e colheita aos 96 DAT, por ter tido RAE de 2,01.Ocimum basilicum L. (Lamiaceae is used commercially as flavoring or seasoning that was prepared with its green and aromatic leaves, which can be used fresh or dried. The aim of this work was to evaluate yield of biomass of basil under two or three rows per plot, intercropped or not with lettuce. Basil and lettuce were planted at field in joined experiment, which established five treatments: two rows of basil in monocrop system (M2 spaced 0.50 m; three rows of basil in monocrop system spaced 0.33 m (M3; four rows of lettuce in monocrop system spaced 0.25 m (A4; two rows of basil in monocrop system and intercropped with four rows of lettuce (M2A4 and three rows of basil intercropped with four rows of lettuce (M3A4. Used design was randomized blocks with eight replications. Lettuce plants were harvested on 48 days after transplanting and basil plants were harvested in two dates, on 96 and on 113 days after transplanting (DAT. Intercrop did not influence on foliar area neither on yields of leaves of inflorescences of basil neither on commercial or non-commercial lettuce heads. Although, regarding plant arrangement, on second harvest date, basil plants that were cultivated under two rows had the greatest foliar area (2,076.99 cm² plant-1 and the greatest fresh masses of leaves (5,012.53 kg ha-1. Considering that the values of Equivalent Area Ration in the first and the second harvest of basil were higher than 1.0. It was concluded that to intercrop basil with lettuce is viable. It is recommended the arrangement of three rows of basil alternated with four rows of lettuce, with harvested at 96 DAT, because it had EAR of 2.01.

M.C. Vieira

2012-01-01

190

DNA sequence requirements for hobo transposable element transposition in Drosophila melanogaster.  

Science.gov (United States)

We have conducted a structure and functional analysis of the hobo transposable element of Drosophila melanogaster. A minimum of 141 bp of the left (L) end and 65 bp of the right (R) end of the hobo were shown to contain sequences sufficient for transposition. Both ends of hobo contain multiple copies of the motifs GGGTG and GTGGC and we show that the frequency of hobo transposition increases as a function of the copy number of these motifs. The R end of hobo contains a unique 12 bp internal inverted repeat that is identical to the hobo terminal inverted repeats. We show that this internal inverted repeat suppresses transposition activity in a hobo element containing an intact L end and only 475 bp of the R end. In addition to establishing cis-sequences requirements for transposition, we analyzed trans-sequence effects of the hobo transposase. We show a hobo transposase lacking the first 49 amino acids catalyzed hobo transposition at a higher frequency than the full-length transposase suggesting that, similar to the related Ac transposase, residues at the amino end of the transposase reduce transposition. Finally, we compared target site sequences of hobo with those of the related Hermes element and found both transposons have strong preferences for the same insertion sites. PMID:21805320

Kim, Yu Jung; Hice, Robert H; O'Brochta, David A; Atkinson, Peter W

2011-08-01

191

Interrupting connection of superficial and deep veins of the upper extremity at the elbow for creation of hemodialysis arteriovenous fistulas  

Directory of Open Access Journals (Sweden)

Full Text Available We hypothesized that interrupting the connection between superficial and deep veins of the upper extremity at the elbow for creation of hemodialysis arteriovenous fistulas (AVFs, in addition to adequate dilation of the elbow veins, will reduce the risk of steal syndrome and venous hypertension. In this prospective study over a period of one year, patients who were candidates for creation of elbow AVFs based on Doppler ultrasound findings and physical exa-mination, were enrolled into the study. For creation of AVFs, based on the anatomy of the vessels, side-to-side or end-to-side anastomosis between the brachial artery and either cephalic or median antecubital or basilic veins was performed. In some cases, Gracz AVF was created. For inter-rupting the connection between superficial and deep veins, the perforating vein was either ligated or used for anastomosis. The patients were then followed-up regarding patency rate of the AVF and complications. AVFs were created in 50 patients and the duration of follow-up varied from one to eight months. About 56% (n = 28 of the patients had history of failed AVF or arterio-venous graft and 48% (n = 24 of them had history of insertion of a dual-lumen catheter for hemo-dialysis. Neuromuscular problem (n=1 and infection (n=1 were the observed complications. None of the patients developed steal syndrome or venous hypertension. At the end of the study, 47 AVFs (94% were patent and adequate. Our study suggests that interrupting the connection between the superficial and deep venous systems of the upper extremity can reduce the risk of development of steal syndrome and venous hypertension despite side-to-side anastomosis. These techniques provided acceptable patency rate for elbow AVFs.

Moini Majid

2010-01-01

192

Ultrasonography in deep vein thrombosis  

International Nuclear Information System (INIS)

In 54 patients with suspected deep vein thrombosis in the lower extremity, B-scan ultrasonography was compared with contrast venography for diagnostic accuracy. In the area of the common femoral/popliteal vein, ultrasonography was correct in 53 patients, giving an accuracy of 98%. There were no false-negative studies, which gives a sensivity of 100%. There was one false-positive study for a specificity of 97%. The technique is inexpensive and produces no discomfort to the patient. It is quite obvious that even small hospitals have the equipment and the competent staff to carry out this examination. It is claimed that B-scan ultrasonography is a certain, non-invasive method of demonstrating deep vein thrombosis in the common femoral/popliteal vein area

1989-01-01

193

Varicose Veins and Venous Insufficiency  

Science.gov (United States)

... Angiography Angioplasty and stent placement Cancer - bone Cancer - breast Cancer - kidney Cancer - liver Cancer - lung Deep vein thrombosis Endovascular Treatment of CCSVI for MS Gastrostomy (feeding tubes) Hereditary hemorrhagic telangiectasia Hypertension and end-stage renal disease ...

194

Absence of the azygos vein.  

Science.gov (United States)

A rare case of the absence of the azygos vein (AV) is presented. Imaging findings on plain chest film and on contrast-enhanced spiral computed tomography (CT) are described, and embryology of azygos and hemiazygos veins (HV) is reviewed. On PA chest radiographs, both the absence of AV shadow on its usual location and the presence of the aortic nipple may consider agenesis of AV, and this anomaly can be easily confirmed by CT. PMID:11150683

Arslan, G; Cubuk, M; Ozkaynak, C; Sindel, T; Lüleci, E

2000-01-01

195

Antibacterial properties of essential oils and methanol extracts of sweet basil Ocimum basilicum occurring in Bangladesh.  

Science.gov (United States)

The antibacterial potential of essential oils and methanol extracts of sweet basil Ocimum basilicum L. (Lamiaceae) was evaluated for controlling the growth range of food-borne pathogenic bacteria. Essential oils extracted by hydrodistillation from the leaves and stems were analyzed by GC-MS. Fifty-seven compounds representing 94.9 and 96.1% of the total leaf and stem oils, respectively, were identified, of which methyl chavicol (36.7 and 29.9%), gitoxigenin (9.3 and 10.2%), trimethoquinol (10.3 and 8.4%), beta-guaiene (3.7 and 4.1%), aciphyllene (3.4 and 3.0%), alizarin (3.2 and 4.4%), naphthaline (2.2 and 3.8%), (-)-caryophyllene (2.0 and 1.9%), and mequinol (1.6 and 1.8%) were the major compounds. The essential oils (10 microL/disc of 1:5, v/v dilution with methanol) and methanol extracts (300 microg/disc) of O. basilicum displayed a great potential of antibacterial activity against Bacillius cereus, B. subtilis, B. megaterium, Staphylococcus aureus, Listeria monocytogenes, Escherichia coli, Shigella boydii, S. dysenteriae, Vibrio parahaemolyticus, V. mimicus, and Salmonella typhi with their respective zones of inhibition of 11.2-21.1 mm and MIC values of 62.5-500 microg/mL. The results of this study suggest that the natural products derived from O. basilicum may have potential use in the food and/or pharmaceutical industries as antimicrobial agents. PMID:20645791

Hossain, M Amzad; Kabir, M J; Salehuddin, S M; Rahman, S M Mizanur; Das, A K; Singha, Sandip Kumar; Alam, Md Khorshed; Rahman, Atiqur

2010-05-01

196

Portal Vein Thrombosis in non cirrhotic patients  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Extrahepatic portal vein thrombosis (EPVT) is the most common cause of portal hypertension in non- cirrhotic patients. EPVT has been defined as an obstruction of the extrahepatic portal vein with or without involvement of the intrahepatic portal veins. Although the portal vein accounts for two third of the total hepatic blood flow, interruption of the portal vein has few clinical consequences. This could be explained by two findings. First a compensatory mechanism so called art...

Spaander, V. M. C. W.

2010-01-01

197

Consórcio de manjericão (Ocimum basilicum L.) e alface sob dois arranjos de plantas / Intercrop of basil (Ocimum basilicum L.) and lettuce under two plant arrangements  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Ocimum basilicum L. (Lamiaceae) é comercialmente utilizada como aromatizante ou condimento preparado com suas folhas verdes e aromáticas, que podem ser usadas frescas ou secas. O objetivo deste trabalho foi avaliar a produção de biomassa de manjericão sob duas ou três fileiras no canteiro, consorcia [...] do ou não com alface. O manjericão e a alface foram alocados no campo em experimento conjunto, sendo constituídos cinco tratamentos da seguinte forma: duas fileiras solteiras de manjericão (M2) espaçadas de 0,50 m; três fileiras solteiras de manjericão espaçadas de 0,33 m (M3); quatro fileiras solteiras de alface espaçadas de 0,25 m (A4); duas fileiras solteiras de manjericão consorciadas com quatro fileiras de alface (M2A4) e três fileiras de manjericão consorciada com quatro fileiras de alface (M3A4). O delineamento utilizado foi em blocos casualizados, com oito repetições. As plantas de alface foram colhidas aos 48 dias após o transplantio e as de manjericão, em duas épocas, aos 96 e 113 dias após o transplantio (DAT). O consórcio não influenciou as áreas foliares nem as produções de folhas ou inflorescências do manjericão nem de cabeças comerciais ou não-comerciais da alface. No entanto, quanto ao arranjo de plantas, na segunda época de colheita, as plantas de manjericão cultivadas sob duas fileiras tiveram maior área foliar (2.076,99 cm² planta-1) e maior massa fresca de folhas (5.012,53 kg ha-1). Considerando-se que os valores da Razão de Área Equivalente - RAE na primeira e segunda colheita do manjericão foram maiores que 1,0, conclui-se que o consórcio manjericão com alface é viável. Recomenda-se o arranjo de três fileiras de manjericão alternadas com quatro fileiras de alface, e colheita aos 96 DAT, por ter tido RAE de 2,01. Abstract in english Ocimum basilicum L. (Lamiaceae) is used commercially as flavoring or seasoning that was prepared with its green and aromatic leaves, which can be used fresh or dried. The aim of this work was to evaluate yield of biomass of basil under two or three rows per plot, intercropped or not with lettuce. Ba [...] sil and lettuce were planted at field in joined experiment, which established five treatments: two rows of basil in monocrop system (M2) spaced 0.50 m; three rows of basil in monocrop system spaced 0.33 m (M3); four rows of lettuce in monocrop system spaced 0.25 m (A4); two rows of basil in monocrop system and intercropped with four rows of lettuce (M2A4) and three rows of basil intercropped with four rows of lettuce (M3A4). Used design was randomized blocks with eight replications. Lettuce plants were harvested on 48 days after transplanting and basil plants were harvested in two dates, on 96 and on 113 days after transplanting (DAT). Intercrop did not influence on foliar area neither on yields of leaves of inflorescences of basil neither on commercial or non-commercial lettuce heads. Although, regarding plant arrangement, on second harvest date, basil plants that were cultivated under two rows had the greatest foliar area (2,076.99 cm² plant-1) and the greatest fresh masses of leaves (5,012.53 kg ha-1). Considering that the values of Equivalent Area Ration in the first and the second harvest of basil were higher than 1.0. It was concluded that to intercrop basil with lettuce is viable. It is recommended the arrangement of three rows of basil alternated with four rows of lettuce, with harvested at 96 DAT, because it had EAR of 2.01.

M.C., Vieira; A., Carlesso; N.A., Heredia Zárate; W.L.F., Gonçalves; L.A., Tabaldi; E., Melgarejo.

198

Transposition of the EU cogeneration directive: A vision for Portugal  

International Nuclear Information System (INIS)

The potential for new, small-scale and micro-cogeneration installations in Portugal is very considerable due to the number of potential host buildings. In this work, we discuss the legal framework of the Portuguese energy market, and some modifications to accommodate the Directive, 2004/8/EC are stressed. A practical case of cogeneration is also presented, showing the application of the Annex III (b) and (c) of the Cogeneration Directive. The practical case presented shows that micro CHP can be considered highly efficient, with parameters calculated with the Directive rules. Two main improvements in Portugal's energy policy are important: improvement on the permission to access grid system and improvement on support mechanisms indexing it to PES. The Cogeneration Directive transposition is an excellent opportunity to induce a less restrictive framework for the installation of new cogeneration systems, reducing the technological barriers, namely allowing medium-voltage connection with the grid, and improving the revenues provided from these small cogeneration systems. These modifications can improve significantly the number of potential hosts for small-scale cogeneration systems

2007-11-01

199

Transposition of the EU cogeneration directive: A vision for Portugal  

International Nuclear Information System (INIS)

The potential for new, small-scale and micro-cogeneration installations in Portugal is very considerable due to the number of potential host buildings. In this work, we discuss the legal framework of the Portuguese energy market, and some modifications to accommodate the Directive, 2004/8/EC are stressed. A practical case of cogeneration is also presented, showing the application of the Annex III (b) and (c) of the Cogeneration Directive. The practical case presented shows that micro CHP can be considered highly efficient, with parameters calculated with the Directive rules. Two main improvements in Portugal's energy policy are important: improvement on the permission to access grid system and improvement on support mechanisms indexing it to PES. The Cogeneration Directive transposition is an excellent opportunity to induce a less restrictive framework for the installation of new cogeneration systems, reducing the technological barriers, namely allowing medium-voltage connection with the grid, and improving the revenues provided from these small cogeneration systems. These modifications can improve significantly the number of potential hosts for small-scale cogeneration systems. (author)

2007-11-01

200

Congenitally corrected transposition in the adult: detection by radionuclide angiocardiography  

International Nuclear Information System (INIS)

Congenitally corrected transposition (CCT) of the great vessels is an uncommon anomaly usually detected in children because of associated severe cardiac malformations. When these are absent, patients may be hemodynamically normal, but associated cardiac abnormalities are usually present in CCT, leading to symptoms in adulthood. When CCT is suggested in an adult, diagnosis by means of ultrasound may be difficult. Radionuclide angiocardiography (RA) is a simple, noninvasive method by which to diagnose CCT. The authors found consistent morphologic scintigraphic results in 13 patients with proved CCT, leading to establishment of reliable diagnostic criteria. In all instances of situs solitus the aorta ascends and descends on the left with vertical orientation. In the case of situs inversus, the aorta ascends and descends on the right with vertical orientation. The authors criteria are independent of the situs and cardiac position, unlike earlier reports by others. They believe images obtained in the anterior projection are sufficient for the study. The practical application of RA study in patient diagnosis is demonstrated, giving special attention to patients referred because of situs solitus and dextrocardia, in which CCT is known to be present in 50% of cases

1985-01-01

 
 
 
 
201

Prostaglandin E2 after septostomy for simple transposition.  

Science.gov (United States)

In simple transposition of the great arteries (sTGA), balloon atrial septostomy is performed prior to arterial switch to improve mixing of systemic and pulmonary circulations. Following septostomy, some patients are also given prostaglandin E2 (PGE2) until surgical repair. The aims of our study were to identify how often PGE2 is given after septostomy, the indications for starting PGE2, and the effect this has on postoperative outcome. The study was a retrospective review of infants born with sTGA between 2000 and 2005, who underwent arterial switch at Yorkhill Children's Hospital, Glasgow. Over a 5-year period, 26 infants (16 male) with sTGA underwent septostomy. There was a significant rise in mean oxygen saturation following septostomy (mean, 61.4 +/- 11.5% before, 81.5 +/- 9.4% after; p 0.05). Fifty percent of infants in group 3 underwent echocardiography prior to restarting PGE2, which revealed a patent arterial duct in all but one patient. Despite PGE2, Group 3 had lower saturations at arterial switch compared with Group 2 (71 +/- 14% vs. 82 +/- 8%; p 0.05). However, the Intensive Care Unit stay was longer for patients who received PGE2 following septostomy (8.5 +/- 10.3 vs. 5 +/- 0.93 days; p early surgical repair with minimal preoperative medical intervention. PMID:19083139

Beattie, Lynne Mary; McLeod, Karen A

2009-05-01

202

Diameter of Cayley graphs generated by transposition trees  

CERN Document Server

A problem of much theoretical and practical interest is to determine or estimate the diameter of various families of Cayley graphs. Let $\\Gamma$ be a Cayley graph on $n!$ vertices generated by a transposition tree on vertex set ${1,2,...,n}$. In an oft-cited paper \\cite{Akers:Krishnamurthy:1989} (cf. also \\cite[p. 188]{Hahn:Sabidussi:1997}), it is shown that the diameter of $\\Gamma$ is bounded as $$\\diam(\\Gamma) \\le \\max_{\\pi \\in S_n}{c(\\pi)-n+\\sum_{i=1}^n \\dist_T(i,\\pi(i))},$$ where the maximum is over all permutations in $S_n$, $c(\\pi)$ denotes the number of cycles in the disjoint cycle representation of $\\pi$, and $\\dist_T$ is the distance function on pairs of vertices of the tree. Observe that evaluating this upper bound requires $\\Omega(n! n^2)$ computations since the quantity in braces above needs to be evaluated for each permutation in $S_n$. In this work, we describe an algorithm to estimate the diameter of the Cayley graph which requires far fewer computations, and furthermore, we show that the value...

Ganesan, Ashwin

2012-01-01

203

Surgical transposition of the ovaries: Imaging findings in 14 patients  

International Nuclear Information System (INIS)

Pelvic radiation therapy for cervical or vaginal cancer often leads to ovarian failure. To remove the ovaries from the radiation portal and preserve their function, they can be transposed to the lateral abdomen. Serial imaging studies in 14 patients who had undergone ovarian transposition (five bilateral, nine unilateral) were reviewed. Images obtained included 32 CT scans, 20 sonograms, and one MR image. Most transposed ovaries were located along the paracolic gutters near the iliac crests, creating an extrinsic mass effect on adjacent bowel. Detection of surgical clips on the ovary on CT scans allowed confident recognition of all 19 transposed ovaries. Cysts in the transposed ovaries, noted on most imaging studies, did not correlate with complications of pain or hormonal dysfunction. In one case, a large physiologic cyst in a transposed ovary distorted the cecum and was mistaken for a mucocele of the appendix. In another case, a large ovarian cyst was thought to be tumor recurrence or a lymphocele. These findings indicate that although the transposed ovaries can be recognized on CT scans by the surgical clips attached to the ovaries, the appearance of the ovary does not predict reliably the development of complications

1989-01-01

204

Surgical transposition of the ovaries: Imaging findings in 14 patients  

Energy Technology Data Exchange (ETDEWEB)

Pelvic radiation therapy for cervical or vaginal cancer often leads to ovarian failure. To remove the ovaries from the radiation portal and preserve their function, they can be transposed to the lateral abdomen. Serial imaging studies in 14 patients who had undergone ovarian transposition (five bilateral, nine unilateral) were reviewed. Images obtained included 32 CT scans, 20 sonograms, and one MR image. Most transposed ovaries were located along the paracolic gutters near the iliac crests, creating an extrinsic mass effect on adjacent bowel. Detection of surgical clips on the ovary on CT scans allowed confident recognition of all 19 transposed ovaries. Cysts in the transposed ovaries, noted on most imaging studies, did not correlate with complications of pain or hormonal dysfunction. In one case, a large physiologic cyst in a transposed ovary distorted the cecum and was mistaken for a mucocele of the appendix. In another case, a large ovarian cyst was thought to be tumor recurrence or a lymphocele. These findings indicate that although the transposed ovaries can be recognized on CT scans by the surgical clips attached to the ovaries, the appearance of the ovary does not predict reliably the development of complications.

Kier, R.; Chambers, S.K. (Yale Univ. School of Medicine, New Haven, CT (USA))

1989-11-01

205

Juvenile delinquency, the juvenile courts and the settlement movement 1908-1950: Basil Henriques and Toynbee Hall.  

Science.gov (United States)

This article explores the relationship between the voluntary sector and the juvenile courts in the period c.1908-1950. It specifically examines the relationship between the settlement movement and the early juvenile courts by analysing the Inner London Juvenile Court, which sat at Toynbee Hall in the East End of London between 1929 and 1953. The settlements, which brought young graduates to deprived urban areas to undertake voluntary social work, were heavily involved in boys' clubs. Many of those who began their careers in settlement youth work went on to work with the early juvenile courts, viewing their experience in clubs as a vital foundation for this work. This article focuses on Basil Henriques, a former resident of Toynbee Hall, warden of the Bernhard Baron Settlement in Stepney and magistrate at the Inner London Juvenile Court, and his 1950 book, Indiscretions of a Magistrate. It concludes that, by critically examining Basil Henriques and Indiscretions, it is possible to begin to fully explore the discourses around citizenship, gender, class and race that informed the views and practices of juvenile court magistrates in the period in which the voluntary sector and the welfare state underwent profound change. PMID:19069208

Bradley, Katharine

2008-01-01

206

Identification and Quantification of the Major Fungitoxic Components of the Brazilian Basil (Ocimum basilicum L. Essential Oil  

Directory of Open Access Journals (Sweden)

Full Text Available Hydrodistillation of Brazilian basil (Ocimum basilicum L. yielded 0.4% of essential oil (EO, with activity against eight important postharvest deteriorating fungi. The crude EO completely inhibited the radial growth of the fungi at a concentration of 0.1%. Thirty-two components were identified in crude EO by Kováts retention index, mass spectrometry and standards. Preparative TLC-bioautography of the crude EO presented only one band with an antifungal activity greater than that of crude EO with the following chemical composition (%: 1,8-cineole (6.2, linalool (36.3, camphor (9.7, Alpha-terpineol (3.8, methyl chavicol (9.1 and eugenol (34.9. Based on these results, these compounds were considered to be the major fungitoxic components. This is the first study in the literature that presents data obtained simultaneously on the activity of crude basil EO against eight important post-harvest deteriorating fungi, its unequivocal chemical identification and quantification (area %.

Rosimeire C. Barcelos

2013-07-01

207

Laparoscopic ovarian transposition before pelvic radiation in rectal cancer patient: safety and feasibility  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Infertility due to pelvic radiation for advanced rectal cancer treatment is a major concern particularly in young patients. Pre-radiation laparoscopic ovarian transposition may offer preservation of ovarian function during the treatment however its use is limited. Aim The study investigates the safety, feasibility and effectiveness of pre-radiation laparoscopic ovarian transposition and its effect on ovarian function in the treatment o locally advanced rectal cancer. Methods Charts review of all young female patients diagnosed with locally advanced rectal cancer, underwent laparoscopic ovarian transposition, then received preoperative radiotherapy at king Faisal Specialist Hospital and Research Centre between 2003–2007. Results During the period studied three single patients age between 21 27?years underwent pre-radiation laparoscopic ovarian transposition for advanced rectal cancer. All required pretreatment laparoscopic diversion stoma due to rectal stricture secondary to tumor that was performed at the same time. One patient died of metastatic disease during treatment. The ovarian hormonal levels (FSH and LH were normal in two patients. One has had normal menstrual period and other had amenorrhoea after 4?months follow-up however her ovarian hormonal level were within normal limits. Conclusions Laparoscopic ovarian transposition before pelvic radiation in advanced rectal cancer treatment is an effective and feasible way of preservation of ovarian function in young patients at risk of radiotherapy induced ovarian failure. However, this procedure is still under used and it is advisable to discuss and propose it to suitable patients.

Al-Asari Sami

2012-09-01

208

Formulation and in Vivo Evaluation for Anti-Aging Effects of an Emulsion Containing Basil Extract Using non- Invasive Biophysical Techniques  

Directory of Open Access Journals (Sweden)

Full Text Available Background and the purpose of study: Skin aging is a complex process induced by constant exposure to ultraviolet (UV irradiation and damages human skin. UV generates reactive oxygen species leading to collagen deficiency and eventually skin wrinkling. Basil contains a number of phenolics and favonoids which possess antioxidant properties. The aim of this study was to formulate and investigate the antiaging potential of a cream containing Basil extract. Methods: A single blinded study was conducted using non-invasive methods. Formulation containing 3% of the concentrated extract of Basil was developed by entrapping in the inner aqueous phase of w/o emulsion and base contained no extract. Both creams were stored at different storage conditions of 8°C, 25°C, 40°C and 40°C+ 75% relative humidity to predict their stabilities. The formulation and base were evaluated for their effects on various skin parameters i.e., moisture and trans epidermal water loss (TEWL, volume, energy and surface evaluation of the living skin (SELS. Results: Significant effects (p?0.05 were observed for both creams in the case of TEWL. The base showed insignificant (p?0.05 while formulation showed significant effects on skin moisture. Volume, SELS SEr (skin roughness, SEsc (skin scaliness, SEsm (skin smoothness, SEw (skin wrinkles parameter showed significant decline while texture parameter of ‘Energy' showed significant increase. Conclusion: The results statistically indicated that the active formulation containg extract of Basil exert antiaging effects when applied topically.

N. Akhtar

2011-12-01

209

Subfascial endoscopic perforator vein surgery.  

Science.gov (United States)

Chronic venous insufficiency is a tremendous health care problem in western societies. Venous disease can affect any combination of the superficial, deep, and perforator venous systems of the lower extremities. Generally the superficial venous deficits are addressed through sclerotherapy, enovenous ablation, stab phlebectomy, and or stripping. Patients with advanced clinical sequelae (lipodermatosclerosis or ulceration) of CVI should also be evaluated for the presence of incompetent perforating veins. Open surgical approached to the calf perforating veins (ie. Linton procedure) were complicated by significant wound complications and have largely been replaced by the less invasive Subfascial Endoscopic Perforator Surgery (SEPS). The use of SEPS in patients with ulceration has been shown to be safe and to reduce the time that patients will have ulcers during follow-up. This chapter will review the pathophysiology, diagnosis, and treatment of incompetent perforating veins of the legs with particular attention to surgical issues. PMID:16387265

Iafrati, Mark D

2005-12-01

210

Transposition of Mandibular Lateral Incisor-Canine (Mn.I2.C) Associated with Hypodontia: A Review and Rare Clinical Case  

Science.gov (United States)

Transposition is a unique and extreme form of ectopic eruption in which a permanent tooth develops and erupts in the position which is normally occupied by other permanent teeth. Tooth transpositions are rare and they can be complete or incomplete. The aetiology of transposition is still obscure. Various populations have been studied, to determine the prevalence of tooth transpositions. 20% of the transpositions which occur on the maxillary arch involve the canine and the lateral incisor. Although they are rare, transpositions may involve the maxillary lateral and central incisors. Among all transpositions, Mandibular Lateral Incisor-Canine (Mn.I2.C) is the rarest, with a prevalence rate of 0.03%. Although various reports have been published on tooth transpositions, very few have noted the agenesis of teeth, particularly Mn.I2.C and its management. We are reporting a rare clinical case with associated hypodontia.

Athimuthu, Anantharaj; Prasanna, Praveen; Jagadeesh, Ramya B

2014-01-01

211

Surgical treatment of ovarian vein thrombosis.  

Science.gov (United States)

Ovarian vein thrombosis is a rare but serious condition that may cause sepsis in the postpartum patient or may be associated with thrombosis of the inferior vena cava or renal vein. A 30-year-old woman presented 2 weeks postpartum with sudden onset of dyspnea and rightsided pleuritic chest pain. She was diagnosed with a large pulmonary embolus and thrombosis of the right ovarian vein. After failure of percutaneous embolization of the right ovarian vein, the patient underwent open surgical excision of the right ovarian vein. The management of ovarian vein thrombosis may involve systemic anticoagulation, antibiotics, thrombolysis, open surgical treatment, or a combination of these. PMID:17202100

Carr, Sandra; Tefera, Girma

212

Simple transposition technique for microvascular decompression using an expanded polytetrafluoroethylene "belt": technical note.  

Science.gov (United States)

Microvascular decompression (MVD) is a standard surgical procedure for treating vascular compression syndromes. There are two basic ways to perform MVD: interposition using a prosthesis and transposition. With the transposition technique, adhesions and granuloma around the decompression site are avoided, but the required operation is more complex than that for the interposition method. We describe a simple, quick MVD transposition procedure that uses a small "belt" cut from a sheet of 0.3-mm-thick expanded polytetrafluoroethylene membrane. The belt has a hole at the wide end and the other end tapered to a point. The belt is encircled around offending vessels by inserting the pointed end into the hole. The pointed end is then passed through a dural tunnel over the posterior wall of the petrous bone and is tied two or three times. This method avoids the risks involved in handling a surgical needle close to the cranial nerves and vessels. PMID:24097088

Tanaka, Yuichiro; Uchida, Masashi; Onodera, Hidetaka; Hiramoto, Jun; Yoshida, Yasuyuki

2014-06-17

213

CUBITAL TUNNEL SYNDROME: REVIEW OF 14 ANTERIOR SUBCUTANEOUS TRANSPOSITIONS OF THE VASCULARIZED ULNAR NERVE  

Directory of Open Access Journals (Sweden)

Full Text Available Anterior transposition of the ulnar nerve is widely implemented for treatment of cubital tunnel ?syndrome. However, preservation of the extrinsic blood supply of the ?ulnar nerve may result in better clinical outcomes. Fourteen patients with cubital tunnel ?syndrome, 11 ?men and 3 women, were treated by anterior subcutaneous transposition of the ulnar nerve. The extrinsic blood supply of the ulnar nerve was ?preserved. The average age at the time of operation was 33 years. The average follow-up period was 44 months. Post-operative outcome assessment by an independent examiner was based on the modified Bishop rating system. Nine patients had excellent or good outcomes. Five patients had a fair outcome. There ?were no complications or recurrence of symptoms. Anterior subcutaneous ?transposition of the vascularized ulnar nerve is an effective method of surgical ?treatment for patients with cubital tunnel syndrome.

M. Farzan

2005-06-01

214

Inducible transposition in Streptomyces lividans of insertion sequence IS6100 from Mycobacterium fortuitum.  

Science.gov (United States)

Transposition of IS6100, originally isolated as part of the compound transposon Tn610 from Mycobacterium fortuitum, was tested in the related actinomycete Streptomyces lividans. Cointegrate formation was observed, as expected for this IS6-related element, and involved apparent random integration of the temperature-sensitive vector carrying IS6100 and concomitant duplication of the insertion sequence. This establishes that a single copy of the insertion sequence can promote transposition and is a precedent for the functioning of a heterologous transposable element in Streptomyces. Transposition could be induced 100-fold by external transcription emanating from a copy of the thiostrepton-inducible promoter ptipA located outwith the insertion sequence and resulting in overexpression of the transposase gene. Thus, in contrast to other prokaryotic transposable elements, IS6100 appears to have no effective means of protecting itself from external activation. PMID:8825097

Smith, B; Dyson, P

1995-12-01

215

If I Had - Deep Vein Thrombosis  

Science.gov (United States)

... Kenneth Saag, MD) If I Had - Deep Vein Thrombosis - Dr. David Lee, MD In the Spotlight - Dr. ... to Home Page If I Had - Deep Vein Thrombosis - Dr. David Lee, MD (November 15, 2007 - Insidermedicine) ...

216

If I Had - Deep Vein Thrombosis  

Medline Plus

Full Text Available ... Kenneth Saag, MD) If I Had - Deep Vein Thrombosis - Dr. David Lee, MD In the Spotlight - Dr. ... to Home Page If I Had - Deep Vein Thrombosis - Dr. David Lee, MD (November 15, 2007 - Insidermedicine) ...

217

If I Had - Deep Vein Thrombosis  

Medline Plus

Full Text Available ... If I Had - Deep Vein Thrombosis - Dr. David Lee, MD In the Spotlight - Dr. Barry Gordon, MD, ... If I Had - Deep Vein Thrombosis - Dr. David Lee, MD (November 15, 2007 - Insidermedicine) Welcome to Insidermedicine's ...

218

If I Had - Deep Vein Thrombosis  

Medline Plus

Full Text Available ... Dr. Kenneth Saag, MD) If I Had - Deep Vein Thrombosis - Dr. David Lee, MD In the Spotlight - ... Back to Home Page If I Had - Deep Vein Thrombosis - Dr. David Lee, MD (November 15, 2007 - ...

219

Base Flipping in Tn10 Transposition: An Active Flip and Capture Mechanism  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The bacterial Tn5 and Tn10 transposases have a single active site that cuts both strands of DNA at their respective transposon ends. This is achieved using a hairpin intermediate that requires the DNA to change conformation during the reaction. In Tn5 these changes are controlled in part by a flipped nucleoside that is stacked on a tryptophan residue in a hydrophobic pocket of the transposase. Here we have investigated the base flipping mechanism in Tn10 transposition. As in Tn5 transposition...

Bischerour, Julien; Chalmers, Ronald

2009-01-01

220

Cerebral water and electrolytes in experimental ischaemia following omental transposition to the brain.  

Science.gov (United States)

Occlusion of the middle cerebral artery induces a local decrease in percentage of tissue dry weight in rabbit brain, associated with flux of sodium and potassium in reciprocal directions. Cortical swelling occurs also in remote non-ischaemic areas. Previous transposition of the omentum majus to the brain minimizes the onset of oedema consequent on occlusion of a major cerebral artery. Increasing experimental evidence points to the role of omental transposition in providing an effective source of collateral circulation, thus strongly affecting the threshold for infarction. PMID:7446232

Pau, A; Viale, E S; Turtas, S; Viale, G L

1980-01-01

 
 
 
 
221

Ventricular assist device outflow graft in congenitally corrected transposition of great arteries - a surgical challenge.  

Science.gov (United States)

Congenitally corrected transposition of the great arteries is a complex congenital cardiac anomaly with a wide spectrum of morphologic features and clinical profiles. Most patients are diagnosed late in their life, undergoes surgical repairs, eventually leading to systemic ventricular failure needing heart transplant or mechanical circulatory assistance. As, aorta is located anterior to and left of the PA (Transposition of great arteries), the outflow graft of ventricular assist device traverse across pulmonary artery to reach aorta which poses challenge during further surgical explorations. PMID:23013548

Mohite, Prashant N; Popov, Aron F; Garcia, Diana; Hards, Rachel; Zych, Bartlomeij; Khaghani, Asghar; Simon, Andre R

2012-01-01

222

Conjugative transposition of Tn916: the transposon int gene is required only in the donor.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Conjugative transposition of transposon Tn916 has been shown to proceed by excision of the transposon in the donor strain and insertion of this element in the recipient. This process requires the product of the transposon int gene. We report here the surprising finding that the int gene is required only in the donor during conjugative transposition. We find that Tn916 int-1, whose int gene has been inactivated by an insertion mutation, transposes when a complementing wild-type int gene is pre...

Bringel, F.; Alstine, G. L.; Scott, J. R.

1992-01-01

223

Transposition of reversed Ac element ends generates chromosome rearrangements in maize.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In classical "cut-and-paste" transposition, transposons are excised from donor sites and inserted at new locations. We have identified an alternative pathway in which transposition involves the 5' end of an intact Ac element and the 3' end of a nearby terminally deleted fAc (fractured Ac). The Ac and fAc elements are inserted at the maize p1 locus on chromosome 1s in the same orientation; the adjacent ends of the separate elements are thus in reversed orientation with respect to each other an...

Zhang, Jianbo; Peterson, Thomas

2004-01-01

224

A Reappraisal of Saphenous Vein Grafting  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Autologous saphenous vein grafting has been broadly used as a bypass conduit, interposition graft, and patch graft in a variety of operations in cardiac, thoracic, neurovascular, general vascular, vascular access, and urology surgeries, since they are superior to prosthetic veins. Modified saphenous vein grafts (SVG), including spiral and cylindrical grafts, and vein cuffs or patches, are employed in vascular revascularization to satisfy the large size of the receipt vessels or to obtain a be...

2011-01-01

225

A reappraisal of saphenous vein grafting  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Autologous saphenous vein grafting has been broadly used as a bypass conduit, interposition graft, and patch graft in a variety of operations in cardiac, thoracic, neurovascular, general vascular, vascular access, and urology surgeries, since they are superior to prosthetic veins. Modified saphenous vein grafts (SVG), including spiral and cylindrical grafts, and vein cuffs or patches, are employed in vascular revascularization to satisfy the large size of the receipt vessels or to obtain a be...

2011-01-01

226

Vein thromboembolism prevention in stroke patients  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Introduction Having in mind the rate of occurrence and clinical importance, venous thromboembolism implies venous thrombosis and pulmonary embolism as a result of embolisation of the thrombotic particles from deep veins or pelvic veins. Venous thrombosis of the deep veins may result in chronic vein insufficiency, but the primary medical problem is the possibility of development of pulmonary embolism which may cause permanent respiratory function damage or even fatal outcome. Venous thromboemb...

Savi? Dejan; Savi? Ljiljana

2010-01-01

227

Deep vein thrombosis: a clinical review  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Emeka Kesieme1, Chinenye Kesieme2, Nze Jebbin3, Eshiobo Irekpita1, Andrew Dongo11Department of Surgery, Irrua Specialist Teaching Hospital, Irrua, Nigeria; 2Department of Paediatrics, Irrua Specialist Teaching Hospital, Irrua, Nigeria; 3Department of Surgery, University of Port Harcourt Teaching Hospital, Port-Harcourt, NigeriaBackground: Deep vein thrombosis (DVT) is the formation of blood clots (thrombi) in the deep veins. It commonly affects the deep leg veins (such as the calf veins, femo...

Eb, Kesieme; Cn, Kesieme; Jebbin N; Irekpita E; Dongo A

2011-01-01

228

Surgical Access to Jejunal Veins for Local Thrombolysis and Stent Placement in Portal Vein Thrombosis  

International Nuclear Information System (INIS)

Portal vein thrombosis is an infrequent entity, which may cause high morbidity and mortality. We report a case of portal vein thrombosis due to benign stenosis following partial pancreatoduodenectomy with segmental replacement of the portal vein by a Gore-tex graft. Using a surgical access to jenunal veins, local thrombolysis, mechanical fragmentation of thrombus, and stent placement were successfully performed.

2008-07-01

229

[Surgical treatment of magistral vein injuries].  

Science.gov (United States)

The article generalizes the experience with the surgical treatment of 83 patients with injuries of major veins. The integrity of injured veins in 71 patients was restored by reconstructive operations. Good and satisfactory results were obtained in 71 patients. The method of choice of the surgical treatment of major veins is reconstructive operation on the vessels. PMID:3750727

Bulynin, V I; Kazanski?, V N; Esipenko, V V; Martem'ianov, S V; Laskarzhevskaia, M A

1986-06-01

230

Recontextualização da simulação clínica em enfermagem baseada em Basil Bernstein: semiologia da prática pedagógica / Recontextualization of Nursing clinical simulation based on Basil Bernstein: semiology of pedagogical practice / Recontextualización de la simulación de enfermería clínica basada en Basil Bernstein: la semiología de la práctica pedagógica  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese O presente artigo é um estudo de caso investigativo de caráter participante e descritivo, a partir da vivência pedagógica no disparador de aprendizagem Simulação em Enfermagem, do segundo semestre do primeiro ciclo da graduação da Faculdade de Enfermagem (FEn) da Universidade Federal de Pelotas (UFP [...] el), onde se desenvolve a simulação clínica de semiologia e semiotécnica em Enfermagem. O objetivo é estudar a recontextualização da prática pedagógica da Simulação com base em teorizações do sociólogo da educação Basil Bernstein, contribuindo para o processo de aperfeiçoamento do planejamento de ensino e, especialmente, da avaliação deste disparador de aprendizagem. A partir das reflexões deste estudo, observa-se a teorização de Bernstein como uma potente ferramenta semiológica das práticas pedagógicas, a qual contribui para o planejamento e análise do dispositivo pedagógico curricular. Abstract in spanish Este artículo es un caso de estudio de carácter descriptivo y de investigación participante, desde la experiencia educativa de aprendizaje en el gatillo Simulación en Enfermería, de la segunda mitad del primer ciclo de la Escuela Enfermería (FEN) de la Universidade Federal de Pelotas (UFPel) donde s [...] e desarrolla la simulación de la semiología clínica y la semiótica en Enfermería. El objetivo es estudiar la recontextualización de la práctica pedagógica de teorías basadas en la simulación del sociólogo de la educación Basil Bernstein, contribuyendo al proceso de mejora de la educación, planificación y aprendizaje, especialmente la evaluación de gatillo. De las reflexiones de este estudio, existe la teoría de Bernstein como una poderosa herramienta de semiótica prácticas pedagógicas, lo que contribuye a la planificación y el análisis de dispositivos educativos curriculares. Abstract in english This article is a case study of investigative and descriptive participant character, from the educational experience of learning in the trigger Simulation in Nursing, the second half of the first cycle of Faculdade de Enfermagem (FEN), Universidade Federal de Pelotas (UFPel) where he develops simula [...] tion of clinical semiology and semiotics in Nursing. The goal is to study the recontextualization of pedagogic practice of simulation-based theories of the sociologist of education Basil Bernstein, contributing to the improvement process of planning education, and especially the evaluation of trigger learning. From reflections on this study, there is the theory of Bernstein as a powerful tool of semiotic pedagogical practices, which contributes to the planning and analysis of curricular educational device.

Mateus Casanova dos, Santos; Maria Cecília Lorea, Leite; Rita Maria, Heck.

231

Recontextualização da simulação clínica em enfermagem baseada em Basil Bernstein: semiologia da prática pedagógica Recontextualización de la simulación de enfermería clínica basada en Basil Bernstein: la semiología de la práctica pedagógica Recontextualization of Nursing clinical simulation based on Basil Bernstein: semiology of pedagogical practice  

Directory of Open Access Journals (Sweden)

Full Text Available O presente artigo é um estudo de caso investigativo de caráter participante e descritivo, a partir da vivência pedagógica no disparador de aprendizagem Simulação em Enfermagem, do segundo semestre do primeiro ciclo da graduação da Faculdade de Enfermagem (FEn da Universidade Federal de Pelotas (UFPel, onde se desenvolve a simulação clínica de semiologia e semiotécnica em Enfermagem. O objetivo é estudar a recontextualização da prática pedagógica da Simulação com base em teorizações do sociólogo da educação Basil Bernstein, contribuindo para o processo de aperfeiçoamento do planejamento de ensino e, especialmente, da avaliação deste disparador de aprendizagem. A partir das reflexões deste estudo, observa-se a teorização de Bernstein como uma potente ferramenta semiológica das práticas pedagógicas, a qual contribui para o planejamento e análise do dispositivo pedagógico curricular.Este artículo es un caso de estudio de carácter descriptivo y de investigación participante, desde la experiencia educativa de aprendizaje en el gatillo Simulación en Enfermería, de la segunda mitad del primer ciclo de la Escuela Enfermería (FEN de la Universidade Federal de Pelotas (UFPel donde se desarrolla la simulación de la semiología clínica y la semiótica en Enfermería. El objetivo es estudiar la recontextualización de la práctica pedagógica de teorías basadas en la simulación del sociólogo de la educación Basil Bernstein, contribuyendo al proceso de mejora de la educación, planificación y aprendizaje, especialmente la evaluación de gatillo. De las reflexiones de este estudio, existe la teoría de Bernstein como una poderosa herramienta de semiótica prácticas pedagógicas, lo que contribuye a la planificación y el análisis de dispositivos educativos curriculares.This article is a case study of investigative and descriptive participant character, from the educational experience of learning in the trigger Simulation in Nursing, the second half of the first cycle of Faculdade de Enfermagem (FEN, Universidade Federal de Pelotas (UFPel where he develops simulation of clinical semiology and semiotics in Nursing. The goal is to study the recontextualization of pedagogic practice of simulation-based theories of the sociologist of education Basil Bernstein, contributing to the improvement process of planning education, and especially the evaluation of trigger learning. From reflections on this study, there is the theory of Bernstein as a powerful tool of semiotic pedagogical practices, which contributes to the planning and analysis of curricular educational device.

Mateus Casanova dos Santos

2010-12-01

232

Collateral veins in inferior caval vein occlusion demonstrated via CT  

International Nuclear Information System (INIS)

CT-scans of 12 patients with tumour-induced occlusion of the inferior vena cava were studied with regard to collateral veins. A comparison was performed with findings at phlebography in 10 patients and at autopsy in 2. The site and appearance of the main collateral pathway are presented. A close study of vascular structures renders useful information on collateral circulation in occlusion of the inferior vena cava. (orig.)

1983-01-01

233

Collateral veins in inferior caval vein occlusion demonstrated via CT  

Energy Technology Data Exchange (ETDEWEB)

CT-scans of 12 patients with tumour-induced occlusion of the inferior vena cava were studied with regard to collateral veins. A comparison was performed with findings at phlebography in 10 patients and at autopsy in 2. The site and appearance of the main collateral pathway are presented. A close study of vascular structures renders useful information on collateral circulation in occlusion of the inferior vena cava.

Lien, H.H.; Lund, G.

1983-11-01

234

The Effect of Static Magnetic Forces on Water Contents and Photosynthetic Pigments in Sweet Basil Ocimum basilicum L. (Lamiaceae)  

International Nuclear Information System (INIS)

Three different magnetic regimes; aerial, surface and buried; each with three different forces, have been used to investigate their effects on the water contents and photosynthetic pigments of sweet basil plants (Ocimum basilicum L.). Two groups of sweet basil seeds, Ocimum basilicum L. have been cultivated, one under normal conditions and the second has been subdivided into three portion (aerial, surface and buried) to examine the effect of different magnetic forces coming from the three directions on the resulted plants. At all directions of magnets, water contents have been significantly affected by the magnetic forces. Chlorophyll A and carotene contents have been affected, as well, according to the three magnetic forces coming from soil surface regime only. Chlorophyll B did not significantly affected by differences magnetic forces in the three regimes, but it is affected by magnetism wherever its direction or force. But all the photosynthetic pigments contents (Chlorophyll A, B and Carotenes) decreased significantly than the control in the three magnetic regimes., but without any effect according to differences in the magnetic force in the aerial and burried regimes of magnetism. It was concluded that magnetism affects both water absorption and retention , the most influenced regime was the aerial magnets followed by the surface and buried ones. This result can be interpreted by the ionization of water which makes water ions respond to magnetic forces. Photosynthetic pigments have been decreased significantly by the exposure to magnetic fields, irrespective to its direction or force and this may be due to the effect of magnetic fields on the reduction in plastids inside the cells. (author)

2007-01-01

235

Glycosaminoglycan distribution in atherosclerotic saphenous vein grafts.  

Science.gov (United States)

Glycosaminoglycan composition of normal saphenous veins and atherosclerotic saphenous vein grafts is reported. Dermatan sulfate is the main glycosaminoglycan present in both normal saphenous veins and saphenous vein grafts. These tissues also contain chondroitin sulfate and heparan sulfate. Although the total amount of glycosaminoglycans decreased in the grafts (compared with normal saphenous veins), the grafts showed an increase in the relative amounts of dermatan sulfate and chondroitin sulfate. Heparan sulfate was decreased, compared with normal controls. These findings suggest the involvement of blood vessel glycosaminoglycans (not only the arterial glycosaminoglycans) in the process of atherosclerosis. PMID:7728804

Marquezini, M V; Strunz, C M; Dallan, L A; Toledo, O M

1995-01-01

236

The angiographic demonstration of hepatic vein obstruction  

International Nuclear Information System (INIS)

Objective: To evaluate the angiographic feature of hepatic vein obstruction. Methods Forty-five patients (male 23, female 22, age 9-54 years) suffered from hepatic vein obstruction. The inferior vena cavography and the hepatic venography were performed in all cases. Results: IVC was free in 37 patients with hepatic vein obstruction, both IVC and HV were obstructed in 8 patients. The local or long stenosis of IVC was found in 31 inferior vena cavography. The diameter of IVC was normal in 12 patients. The sign of membranous dome was found in hepatic vein orifice in 5 cases and in accessory hepatic vein orifice in 4 cases. Intrahepatic venous collaterals were found in 45 cases. Conclusion: Hepatic vein obstruction can be reproached primarily in inferior vena cavography, the membranous dome is a direct sign of membranous obstruction of HV and AHV in inferior vena cavography. The selected hepatic venography can provide reliable evidence to diagnose hepatic vein obstruction

2004-02-01

237

Management of varicose veins and venous insufficiency.  

Science.gov (United States)

Chronic venous disease, reviewed herein, is manifested by a spectrum of signs and symptoms, including cosmetic spider veins, asymptomatic varicosities, large painful varicose veins, edema, hyperpigmentation and lipodermatosclerosis of skin, and ulceration. However, there is no definitive stepwise progression from spider veins to ulcers and, in fact, severe skin complications of varicose veins, even when extensive, are not guaranteed. Treatment options range from conservative (eg, medications, compression stockings, lifestyle changes) to minimally invasive (eg, sclerotherapy or endoluminal ablation), invasive (surgical techniques), and hybrid (combination of ?1 therapies). Ms L, a 68-year-old woman with varicose veins, is presented. She has had vein problems over the course of her life. Her varicose veins recurred after initial treatment, and she is now seeking guidance regarding her current treatment options. PMID:23268520

Hamdan, Allen

2012-12-26

238

Late coronary complications after arterial switch operation for transposition of great arteries. Clinical and therapeutic implications  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The arterial switch operation is the procedure of choice for correction of transposition of the great arteries. Although offering excellent long term results, this procedure is burdened by the risk of acute and subacute coronary occlusion. No guide-lines exist for the management of acute or chronic ischemia in this setting. We briefly review the literature and present the results of our institution.

Agnoletti, G.; Bajolle, F.; Bonnet, D.; Sidi, D.; Vouhe?, P.

2005-01-01

239

Preclinical class 1 integron with a complete Tn402-like transposition module.  

Science.gov (United States)

The presence of integrons was assessed in gut bacteria isolated from wild-caught prawns. A pseudomonad was recovered that contained a Tn402-like class 1 integron with a complete transposition module and two gene cassettes. One cassette was identical to a previously described cassette from a chromosomal class 3 integron in Delftia tsuruhatensis. PMID:21037292

Sajjad, Ammara; Holley, Marita P; Labbate, Maurizio; Stokes, H W; Gillings, Michael R

2011-01-01

240

Influence of ciprofloxacin and vancomycin on mutation rate and transposition of IS256 in Staphylococcus aureus.  

Science.gov (United States)

In Staphylococcus aureus, the development of intermediate resistance to vancomycin is due to an accumulation of mutations. To elucidate the mechanisms involved here, a standard laboratory strain (S. aureus HG001) and a clinical MRSA mutator strain (S. aureus SA1450/94, which is characterized by a spontaneous insertion of IS256 into the gene of the mismatch repair enzyme MutS) were incubated at subinhibitory concentrations of ciprofloxacin and vancomycin. Ciprofloxacin increased the mutation rates of both strains, but this effect was inhibited when the SOS response was blocked by the presence of a non-cleavable variant of the LexA repressor. In the presence of vancomycin, the mutation rate was slightly elevated in the mutator strain, and this increase also depended on the strain's ability to induce the SOS response. Furthermore, treatment with subinhibitory concentrations of both antibiotics resulted in an activation of transposition frequency of the insertion element IS256 in S. aureus HG001. Transposition was dependent on the presence of a functional transposase, and the activation of transposition depended on the presence of the functional phosphatase RsbU, which activates SigB transcription activity. An in silico analysis indicated a putative antisense sigma B promoter sequence within the transposase gene. Scrambling of this promoter resulted in an about 20-fold activation of transposition activity of IS256. These data indicate that sigma B is involved in the regulation of IS256 activity by generation of an antisense RNA. PMID:21115395

Nagel, Michael; Reuter, Tina; Jansen, Andrea; Szekat, Christiane; Bierbaum, Gabriele

2011-03-01

 
 
 
 
241

CT demonstration of the extracardiac anastomoses of the coronary veins in superior vena cava or left brachiocephalic vein obstruction  

Energy Technology Data Exchange (ETDEWEB)

CT scans in four cases of chronic superior vena cava or left brachiocephalic vein obstruction demonstrate a systemic-to-cardiac collateral venous pathway through anastomoses between the pericardial branches of systemic veins and the presumed adventitial veins of the ascending aorta and pulmonary trunk. These adventitial veins then drain into tributaries of the anterior cardiac veins or ventricular coronary veins.

Casullo, Joseph; Semionov, Alexandre [Dept. of Diagnostic Radiology, Montreal General Hospital, McGill University Health Centre, Montreal (Canada)

2013-01-15

242

Phlebectasia of Internal Jugular Vein  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Internal jugular phlebectasia (IJP) is a rare disease in which there is a fusiform dilatation of internal jugular vein, usually presenting as a neck mass in children. Accurate diagnosis from careful history, physical examination, and radiological study can be made. We report a 12-year-old boy with history of swelling appearing on the right side of the neck only on straining, coughing, or during a Valsalva maneuver. Diagnosis of right IJP was made. Exploration and wrapping the dilated segment ...

Bindal, Satish K.; Vasisth, Gaurav O. P.; Chibber, Puneet

2012-01-01

243

Upper extremity deep vein thrombosis  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A 56-year-old female, recently (3 months) diagnosed with chronic kidney disease (CKD), on maintenance dialysis through jugular hemodialysis lines with a preexisting nonfunctional mature AV fistula made at diagnosis of CKD, presented to the hospital for a peritoneal dialysis line. The recently inserted indwelling dialysis catheter in left internal jugular vein had no flow on hemodialysis as was the right-sided catheter which was removed a day before insertion of the left-sided line. The left-s...

Saseedharan, Sanjith; Bhargava, Sunil

2012-01-01

244

“Minority Report”: an analysis of the transposition of Philip K. Dick´s short story to cinema  

Directory of Open Access Journals (Sweden)

Full Text Available This article aims to make a comparative analysis of Philip K. Dick´s short story “Minority Report” with the homonymous film transposition made by director Steven Spielberg. The goal of the analysis is to understand how film transpositions are influenced by the ideological and economical aspects of the movie industry, which includes the movie audience demands, the use of the movie star image, the ideology related to this image, and how all these elements are reflected in the movie Minority Report. Therefore, we will analyze how all these aspects of the movie industry affected the film transposition of Philip K. Dick´s short story.

Daniel Iturvides Dutra

2010-11-01

245

Comparison of the Complications of Central Vein Catheters and Arterio-Venous Fistulae in Children on Chronic Hemodialysis  

Directory of Open Access Journals (Sweden)

Full Text Available Background: Complications related to vascular access are among the most important causes of morbidity in children chronically on hemodialysis. This study was designed to determine the prevalence of the central vein catheters (CVC and arterio-venous fistulae (AVF in children on chronic hemodialysis. Methods: This study includes 68 children who have been treated with hemodialysis in Dr. Sheikh Hospital, Mashhad, Iran, during 2000-2005. Physical examination, clinical and paraclinical findings were recorded in special charts. Findings: Out of 68 patients treated with hemodialysis 29 (42.6% were female and 39 (57.3% male. The average duration time of hemodialysis was 15.8 months. Before performing AVF, the central venous catheters were placed in subclavian vein in 28 patients (41.1% and internal jugular vein in 26 patients (38.2%. The fistula placed was radio-cephalic in 29 (42.6% and brachio-basilic in 33 children (48.5%. 48 patients (77.4% underwent only one surgery for AVF. The most frequent complications of central venous catheters were: catheter infection (48.1%, inadvertent extraction of the catheters (7.4%, cardiac arrhythmia (1.8% and hemothorax (1.8%. The most common complications of AVF in decreasing order of frequency were: non-functional fistula due to thrombosis or hematoma (20.9%, infection (12.9%, aneurysms (11.2% and ischemia of the hand presenting as paresthesia, dysesthesia and pain (11.2%. Overall, 10 (18.5% patients were hospitalized due to the complications of CVC and 20 (29.4% for the complications of AVF. Conclusion: The most frequently observed complications of CVC and AVF were catheter infection and non-functional fistula. The risk factors for AVF dysfunction were young age, hypotension and hemodialysis without administration of heparin.

F Ghane Sherbaf

2006-08-01

246

Radiological evaluation of congenital pulmonary vein obstruction  

International Nuclear Information System (INIS)

Congenital obstruction of pulmonary vein is presented as chronic cough, hemoptysis, and recurrent pneumonias, which are caused by long-standing pulmonary congestion. Congenital obstruction of pulmonary vein without anomalous drainage can cause long-standing pulmonary congestion and pulmonary arterial hypertension, and it may include stenosis of individual pulmonary veins or total pulmonary vein atresia. We reviewed seven cases of pulmonary vein obstruction, five of which accompanied other cardiac anomalies. Right pulmonary veins were involved in all seven cases including one bilateral case. Pulmonary veins were occluded totally in five and partially in three lungs. Pulmonary catheterization and angiography were done for diagnosis. Chest radiographs of total occlusion cases showed decreased lung volume, features of pulmonary edema, interstitial lesions, and pleural thickening, which were quite specific, whereas pulmonary venous dilatation was dominant findings in partial obstruction cases. Pulmonary perfusion scans (n=3) showed total perfusion defects in the cases of total occlusion of veins. MR imaging (n=2) demonstrated total occlusion of pulmonary veins in the veno atrial junction in two, and membranous focal obstruction in one lung. Two patients had pneumonectomy and histological confirmation. Although catheterization and angiography are essential for the diagnosis, MR imaging is thought to be useful for the diagnosis of pulmonary vein obstruction

1993-01-01

247

Radiological evaluation of congenital pulmonary vein obstruction  

Energy Technology Data Exchange (ETDEWEB)

Congenital obstruction of pulmonary vein is presented as chronic cough, hemoptysis, and recurrent pneumonias, which are caused by long-standing pulmonary congestion. Congenital obstruction of pulmonary vein without anomalous drainage can cause long-standing pulmonary congestion and pulmonary arterial hypertension, and it may include stenosis of individual pulmonary veins or total pulmonary vein atresia. We reviewed seven cases of pulmonary vein obstruction, five of which accompanied other cardiac anomalies. Right pulmonary veins were involved in all seven cases including one bilateral case. Pulmonary veins were occluded totally in five and partially in three lungs. Pulmonary catheterization and angiography were done for diagnosis. Chest radiographs of total occlusion cases showed decreased lung volume, features of pulmonary edema, interstitial lesions, and pleural thickening, which were quite specific, whereas pulmonary venous dilatation was dominant findings in partial obstruction cases. Pulmonary perfusion scans (n=3) showed total perfusion defects in the cases of total occlusion of veins. MR imaging (n=2) demonstrated total occlusion of pulmonary veins in the veno atrial junction in two, and membranous focal obstruction in one lung. Two patients had pneumonectomy and histological confirmation. Although catheterization and angiography are essential for the diagnosis, MR imaging is thought to be useful for the diagnosis of pulmonary vein obstruction.

Kim, Woo Sun; Yeon, Kyung Mo; Kim, In One; Yoon, Yong Soo; Chi, Je G. [College of Medicine, Seoul National University, Seoul (Korea, Republic of); Suh, Yeon Lim [College of Medicine, Inje University, Pusan (Korea, Republic of)

1993-01-15

248

Everted cervical vein for carotid patch angioplasty.  

Science.gov (United States)

Because of the theoretic benefits of autologous vein we undertook an investigation to evaluate cervical veins (facial, external jugular) as patch material after carotid endarterectomy. A device that stimulated both circumferential fixation by sutures and radial tension exerted on in vivo patches was constructed to measure burst strength of tissue. Mean bursting pressure for groin saphenous vein (n = 10) was 94.5 +/- 15.1 pounds per square inch (psi), 75.5 +/- 8.9 psi for ankle saphenous vein (n = 10), 83.3 +/- 14.5 psi for everted (double layer) cervical vein (n = 5) and 10 +/- 3.3 psi for single layer cervical vein (n = 5). No significant differences between saphenous vein at any level and everted (double layer) cervical vein, but all were significantly different from single layer cervical vein (p less than 0.05). From June 1987 through November 1989, 19 patients underwent 21 carotid endarterectomies complemented with adjunctive everted cervical vein patch angioplasty. Indications for surgery were asymptomatic stenosis (53%), transient ischemic attack (29%), and cerebrovascular accident with recovery (18%). All patients were studied after surgery with duplex scanning. Asymptomatic recurrent stenosis was observed in one patient. Transient hypoglossal nerve dysfunction occurred in one other patient. One postoperative death occurred as a result of massive aspiration. These results indicate that everted cervical vein is comparable to the saphenous vein in resistance to bursting and can yield similar results as patch material after carotid endarterectomy. Accordingly, saphenous vein can be spared and lower extremity incisions avoided.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:2231962

Yu, A; Dardik, H; Wolodiger, F; Raccuia, J; Kapadia, I; Sussman, B; Kahn, M; Pecoraro, J P; Ibrahim, I M

1990-11-01

249

More great saphenous vein valves - less varicose veins?  

Science.gov (United States)

Background: In patients with chronic venous disease (CVD) the number of venous valves and the degree of valve deterioration have not been extensively investigated and are poorly understood. The aim of this prospective study was to quantitatively and qualitatively investigate the venous valves in CVD patients in view of their clinical classification. Patients and methods: Within two years a consecutive series of 152 patients (223 limbs) undergoing primary surgery for great saphenous vein varicose veins was investigated. In all patients the ?C? class according to the basic CEAP-classification was registered preoperatively (C2 to C6) for each limb. Both the quantity and quality of venous valves were assessed in the GSV?s after removal. Qualitative evaluation of the valves was based on macroscopic appearance using a classification from 0 to 5 and described as ?valve disease class?. Results: A negative correlation between age and the number of valves was detected (p = 0.0035). There was an increase of C-class with increasing age. No significant correlation between the average number of valves per meter and the C-class was detected. For all C-classes an average of between four and five valves per meter was counted. Valve disease class was positively correlated with the C-class although the valve disease class was never higher than the C-class (p vein correlates with the C-class of the CEAP-classification. The number of valves did not correlate with the ?C?-class. With each increase in the CEAP class the age increased as well. PMID:25007904

Gräub, Anna-Barbara; Naef, Markus; Wagner, Hans E; Mouton, Wolfgang G

2014-07-01

250

The effect of essential oil of basil (Ocimum basilicum L.) on UV-induced mutagenesis in Escherichia coli and Saccharomyces cerevisiae  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The antimutagenic potential of essential oil (EO) of basil (Ocimum basilicum L.) and its major constituent linalool were studied with the E. coli K12 and S.cerevisiae D7 assays. In the E. coli assay, EO and linalool inhibited UV-induced mutagenesis in a repair-proficient strain, but had no effect on spontaneous mutagenesis in repair-proficient, nucleotide excision repair-deficient, and mismatch-deficient strains. By testing participation of different mechanisms involved in antimutagenesis, it...

Stanojevi? Jasna; Beri? Tanja; Opa?i? Biljana; Vukovi?-Ga?i? Branka; Simi? Draga; Kneževi?-Vuk?evi? Jelena

2008-01-01

251

The effects of kale (Brassica oleracea ssp. acephala), basil (Ocimum basilicum) and thyme (Thymus vulgaris) as forage material in organic egg production on egg quality  

DEFF Research Database (Denmark)

1. In organic egg production, forage material as part of the diet for laying hens is mandatory. The purpose of the present study was to examine the effect of feeding with forage materials including maize silage, herbs or kale on egg production and various egg quality parameters of the shell, yolk colour, egg albumen, sensory properties, fatty acid and carotenoid composition of the egg yolk. 2. A total of 5 dietary treatments were tested for 5 weeks, consisting of a basal organic feed plus 120 g/ hen.d of the following forage materials: 1) maize silage (control), 2) maize silage incl. 15 g/kg basil, 3) maize silage incl. 30 g/kg basil, 4) maize silage incl. 15 g/kg thyme, or 5) fresh kale leaves. Each was supplied to three replicates of 20 hens. A total of 300 hens was used. 3. Feed intake, forage intake and laying rate did not differ with treatment, but egg weight and egg mass produced increased significantly with the kale treatment. 4. The egg shell strength tended to be higher with the kale treatment, andegg yolk colour was significantly more red with the kale treatment and more yellow with basil and kale treatments. The albumen DM content and albumen gel strength were lowest with the thyme treatment. By sensory evaluation, the kale treatment resulted in eggs with less sulphur aroma, higher yolk colour score, and more sweet and less watery albumen taste. Furthermore, the eggs of the kale treatment had significantly higher lutein and -carotene content. Also, violaxanthin, an orange xanthophyll, tended to be higher in kale and eggs from hens receiving kale. 5. In conclusion, forage material, especially basil and kale, resulted in increased egg production and eggs of high and differentiable quality.

Hammershøj, Marianne; Steenfeldt, Sanna

2012-01-01

252

Changes in the content of total nitrogen and mineral nitrogen in the basil herb depending on the cultivar and nitrogen nutrition  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Among fundamental nutrients, nitrogen fertilization is considered one of the most effective factors affecting both the yield and the quality of plant material. Nitrogen form used for fertilizing is also of great importance. The aim of this study was to investigate the impact of nitrogen nutrition (calcium nitrate, ammonium nitrate, and urea) as well as (green, purple, and‘Fino Verde’) on the chemical composition and yielding of basil (Ocimum basilicumL.). After drying the plant materi...

2013-01-01

253

Changes in the content of total nitrogen and mineral nitrogen in the basil herb depending on the cultivar and nitrogen nutrition  

Directory of Open Access Journals (Sweden)

Full Text Available Among fundamental nutrients, nitrogen fertilization is considered one of the most effective factors affecting both the yield and the quality of plant material. Nitrogen form used for fertilizing is also of great importance. The aim of this study was to investigate the impact of nitrogen nutrition (calcium nitrate, ammonium nitrate, and urea as well as (green, purple, and‘Fino Verde’ on the chemical composition and yielding of basil (Ocimum basilicumL.. After drying the plant material at a temperature of 60°C and milling, total nitrogen was determined by means of Kjeldahl method, while mineral nitrogen content (N-NH 4, N-NO 3 was analyzed in 2% acetic acid extract. Yield of fresh basil matter depended significantly on the variety grown. The highest yields were obtained from a cultivar of ‘Fino Verde’ fertilized with ammonium nitrate. The purple variety plants fertilized with urea were characterized by a largest amount of total nitrogen. The‘Fino Verde’cultivar fertilized with urea accumulated the least quantities of nitrates in the basil herb.

Katarzyna Dzida

2013-04-01

254

Palm Vein Verification Using Gabor Filter  

Directory of Open Access Journals (Sweden)

Full Text Available Palm vein authentication is one of the modern biometric techniques, which employs the vein pattern in the human palm to verify the person. The merits of palm vein on classical biometric (e.g. fingerprint, iris, face are a low risk of falsification, difficulty of duplicated and stability. In this research, a new method is proposed for personal verification based on palm vein features. In the propose method, the palm vein images are firstly enhanced and then the features are extracted by using bank of Gabor filters. Then Fisher Discriminated Analysis (FDA is used to reduce the dimension of the features vectors. For vein pattern verification, this work uses Nearest Neighbors method. The EER of the proposed method is 0.2335%.

Ali Mohsin Al-Juboori

2013-01-01

255

Intraocular pressure in retinal vein occlusion.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The intraocular pressure of 59 patients with retinal vein occlusion was studied. Central retinal vein occlusion (CVO) was diagnosed in 24 patients and branch retinal vein occlusion (BVO) was diagnosed in the rest. The intraocular pressure of a sex and age matched group of controls was also studied for comparison. The intraocular pressure in the CVO group were significantly different from those of the matched controls (p less than 0.001). A statistically significant difference of a lesser degr...

Frucht, J.; Shapiro, A.; Merin, S.

1984-01-01

256

Selecting a treatment for primary varicose veins.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The treatment of varicose veins includes injection/compression sclerotherapy and surgical stripping or ligation or both. Surgery appears to be favoured when the saphenous system is involved or when the patient is 35 to 64 years old or presents with ankle edema or flare. On the other hand, sclerotherapy has been found to be more effective in patients with dilated superficial veins or incompetent perforating veins in the lower legs and to be more acceptable and less expensive than surgical trea...

Tremblay, J.; Lewis, E. W.; Allen, P. T.

1985-01-01

257

Minimally invasive vein surgery: ambulatory phlebectomy.  

Science.gov (United States)

Ambulatory phlebectomy has proven to be an effective treatment for varicose veins. Alone or complementing the treatment of incompetent long or short saphenous vein by high ligation, saphenectomy, or transcatheter occlusion, ambulatory phlebectomy not only adequately and satisfactorily removes the diseased veins but also results in a series of extremely small micro-incisions, which are cosmetically pleasing to the patient and the surgeon. Furthermore, the entire procedure can be performed under local anesthesia on an ambulatory basis. PMID:14614696

Olivencia, Jose Antonio

2003-09-01

258

Deep vein thrombosis in children  

Directory of Open Access Journals (Sweden)

Full Text Available We describe a rare case of deep vein thrombosis (DVT in children, highlight the importance of early diagnosis of rare disease with potential complications. In a 5 year old boy presented with persistent leg pain without any obvious cause. Detailed investigation led to diagnosis of DVT. As there are common differential diagnoses for leg pain in children, pediatricians usually have a low index of suspicious of DVT in children. This case highlight that paediatricians must consider DVT in their differential diagnosis when children present with leg pain.

Michael Ogendele

2013-06-01

259

Small hepatic veins Budd-Chiari syndrome.  

Science.gov (United States)

Budd-Chiari syndrome is a rare disorder characterized by hepatic venous outflow obstruction at any level from the small hepatic veins to the atrio-caval junction, in the absence of heart failure or constrictive pericarditis. Various imaging modalities are available for investigating the gross hepatic vascular anatomy but there are rare forms of this disease where the obstruction is limited to the small intrahepatic veins, with normal appearance of the large hepatic veins at imaging. In this cases only a liver biopsy can demonstrate the presence of a small vessels outflow block. We report two cases of small hepatic veins Budd-Chiari syndrome. PMID:23813023

Riggio, Oliviero; Marzano, Chiara; Papa, Alessia; Pasquale, Chiara; Gasperini, Maria Ludovica; Gigante, Antonietta; Valla, Dominique Charles; Plessier, Aurélie; Amoroso, Antonio

2014-05-01

260

The lateral accessory saphenous vein - a common cause of recurrent varicose veins.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

BACKGROUND: Varicose veins commonly recur after surgery and present a large burden to the NHS. The aim of this study was to demonstrate that the lateral accessory saphenous vein is the commonest cause of groin recurrence of varicose veins and we discuss a possible anatomical reason for this. PATIENTS AND METHODS: The case notes of all patients presenting to two vascular surgeons with recurrent varicose veins over a 3-year period were studied. All limbs were assessed by duplex ultrasound scann...

Garner, J. P.; Heppell, P. S. J.; Leopold, P. W.

2003-01-01

 
 
 
 
261

Isolated inferior mesenteric portal hypertension with giant inferior mesenteric vein and anomalous inferior mesenteric vein insertion  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Extrahepatic portal hypertension is not an uncommon disease in childhood, but isolated inferior mesenteric portal varices and lower gastrointestinal (GI) bleed have not been reported till date. A 4-year-old girl presented with lower GI bleed. Surgical exploration revealed extrahepatic portal vein obstruction with giant inferior mesenteric vein and colonic varices. Inferior mesenteric vein was joining the superior mesenteric vein. The child was treated successfully with inferior mesenteric –...

2013-01-01

262

Semi-field cage studies on the evaluation of basil oil as an attractant for male Mediterranean fruit fly, Ceratitis capitata (Wied.)  

International Nuclear Information System (INIS)

The Sterile Insect Technique (SIT) is an environmentally benign approach for suppressing or eradicating insect pests and is widely used in integrated programmes against tephritid fruit fly pests, particularly the Mediterranean fruit fly, Ceratitis capitata (Wiedemann) Ecological studies of fruit flies have long depended on the methods developed for trapping the fly in the field. The improvement of attractant lures for fruit flies has become a great tool for population suppression before starting a programme integrating the SIT and as a monitor tool during the programme. Moreover, the attractant can be used to induce artificial aggregation of sterile and wild males and mating can be observed at these sites. In 1998, laboratory tests conducted in Egypt, demonstrated that basil oil can be used as attractant for male medfly. The present study deals with the evaluation of basil oil as an attractant for fertile wild type males (EGII Strain), as well as irradiated and non-irradiated mass-reared males from a genetic sexing strain based on a temperature sensitive lethal (tsl) mutation (Vienna-7 mix). The males were tested in field cages located at the FAO/ IAEA Agriculture and Biotechnology Laboratory (Seibersdorf, Austria). Baited Jackson traps were used for attraction of males. The results of the first experiment showed that, for 24 hours, the basil oil attracted 67% of the non- irradiated V-7 mix males, while only 54% of the irradiated (100 Gy) of V-7 mix males were attracted. A different field cage was used for each of the irradiated and non-irradiated males. The second experiment showed that, 65% of the fertile wild medfly males (EGII) were attracted, while only 32% of the irradiated V-7 mix males were attracted. Both types of males were contained in one cage. The data obtained has shown that basil oil can be used as medfly attractant instead of the very expensive trimedlure, normally used for this purpose. Open field test should be conduced to complete the evaluation of basil oil as a medfly attractant

2005-05-09

263

Superação de dormência em sementes de manjericão (Ocimum basilicum L.) / Overcoming dormancy in seeds of basil (Ocimum basilicum L.)  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese O objetivo do trabalho foi avaliar a eficiência de tratamentos pré-germinativos na superação da dormência de sementes de manjericão, produzidas no Horto de Plantas Medicinais da Unimontes, em fevereiro de 2011. Foram realizadas as seguintes determinações para avaliação da qualidade fisiológica das s [...] ementes: teor de água, germinação, primeira contagem de germinação, emergência de plântulas e índice de velocidade de emergência. O delineamento experimental utilizado foi inteiramente casualizado com quatro repetições de 50 sementes por tratamento, sendo T1- testemunha; T2 - pré esfriamento das sementes em câmara tipo BOD sob temperatura de 10ºC por 4 dias; T3 - embebição das sementes em água destilada por 24 horas; T4 - embebição das sementes em solução contendo KNO3 a 0,2 % por 5 minutos e T5 - sementes submetidas em água destilada a temperatura de 70ºC por 5 minutos. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste Scott - Knott a 5% de probabilidade. O tratamento pré esfriamento em câmara tipo BOD a 10ºC por 4 dias reduz a dormência e promove incrementos na qualidade fisiológica das sementes do manjericão. Abstract in english Aiming in order to assess the effectiveness of treatments to overcome dormancy in seeds of basil, an experiment was conducted at the Laboratory of Seed Analysis of Unimontes. Following determinations were performed to evaluate the physiological quality of seeds, water content, germination, first cou [...] nt germination, seedling emergence and emergence speed index. The experimental design was completely randomized design with four replications of 50 seeds per treatment, which consisted of: T1 - control, T2 - pre-cooling of the seed chamber BOD at a temperature of 10ºC for 4 days, T3 - soaking the seeds in water distilled for 24 hours, T4 - soaking the seeds in a solution containing 0,2% for 5 minutes and T5 - submitted seeds in distilled water at 70ºC for 5 minutes. Data were subjected to analysis of variance and the averages compared by Scott-Knott 5% probability. The pre-cooling treatment in BOD chamber at 10ºC for 4 days reduced dormancy and promotes increases in the physiological quality of seeds of basil.

Amaro, H.T.R.; Assis, M.O.; David, A.M.S.S.; Silveira, J.R; Silva Neta, I.C.; Mota, W.F..

264

Superação de dormência em sementes de manjericão (Ocimum basilicum L. Overcoming dormancy in seeds of basil (Ocimum basilicum L.  

Directory of Open Access Journals (Sweden)

Full Text Available O objetivo do trabalho foi avaliar a eficiência de tratamentos pré-germinativos na superação da dormência de sementes de manjericão, produzidas no Horto de Plantas Medicinais da Unimontes, em fevereiro de 2011. Foram realizadas as seguintes determinações para avaliação da qualidade fisiológica das sementes: teor de água, germinação, primeira contagem de germinação, emergência de plântulas e índice de velocidade de emergência. O delineamento experimental utilizado foi inteiramente casualizado com quatro repetições de 50 sementes por tratamento, sendo T1- testemunha; T2 - pré esfriamento das sementes em câmara tipo BOD sob temperatura de 10ºC por 4 dias; T3 - embebição das sementes em água destilada por 24 horas; T4 - embebição das sementes em solução contendo KNO3 a 0,2 % por 5 minutos e T5 - sementes submetidas em água destilada a temperatura de 70ºC por 5 minutos. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste Scott - Knott a 5% de probabilidade. O tratamento pré esfriamento em câmara tipo BOD a 10ºC por 4 dias reduz a dormência e promove incrementos na qualidade fisiológica das sementes do manjericão.Aiming in order to assess the effectiveness of treatments to overcome dormancy in seeds of basil, an experiment was conducted at the Laboratory of Seed Analysis of Unimontes. Following determinations were performed to evaluate the physiological quality of seeds, water content, germination, first count germination, seedling emergence and emergence speed index. The experimental design was completely randomized design with four replications of 50 seeds per treatment, which consisted of: T1 - control, T2 - pre-cooling of the seed chamber BOD at a temperature of 10ºC for 4 days, T3 - soaking the seeds in water distilled for 24 hours, T4 - soaking the seeds in a solution containing 0,2% for 5 minutes and T5 - submitted seeds in distilled water at 70ºC for 5 minutes. Data were subjected to analysis of variance and the averages compared by Scott-Knott 5% probability. The pre-cooling treatment in BOD chamber at 10ºC for 4 days reduced dormancy and promotes increases in the physiological quality of seeds of basil.

H.T.R. Amaro

2012-01-01

265

Classes of n-copy undistillable quantum states with negative partial transposition  

International Nuclear Information System (INIS)

The discovery of entangled quantum states from which one cannot distill pure entanglement constitutes a fundamental recent advance in the field of quantum information. Such bipartite bound-entangled (BE) quantum states could fall into two distinct categories: (1) Inseparable states with positive partial transposition (PPT), and (2) states with negative partial transposition (NPT). While the existence of PPT BE states has been confirmed, only one class of conjectured NPT BE states has been discovered so far. We provide explicit constructions of a variety of multicopy undistillable NPT states, and conjecture that they constitute families of NPT BE states. For example, we show that for every pure state of Schmidt rank greater than or equal to 3, one can construct n-copy undistillable NPT states, for any n?1. The abundance of such conjectured NPT BE states, we believe, considerably strengthens the notion that being NPT is only a necessary condition for a state to be distillable

2003-08-01

266

Trans-fracture transposition of the radial nerve during the open approach of humeral shaft fractures.  

Science.gov (United States)

The radial nerve constitutes a major problem in humeral shaft fractures; it may be injured immediately or during closed reduction or open reduction and internal fixation with plate and screws. After fixation, the nerve always runs directly over the plate without any interposed structure. If a revision surgery is indicated, the nerve is at high risk as it is usually difficult to dissect from surrounding fibrotic scar tissue or callus formation. To avoid these complications, some authors reported transposition of the radial nerve through the fracture line. We present herein the surgical technique of the trans-fracture transposition of the radial nerve during open reduction and internal fixation of humeral shaft fractures, along with our preliminary results in 6 cases and a review of the literature. PMID:23412197

Chamseddine, Ali H; Zein, Hadi K; Alasiry, Abdullah A; Mansour, Nader A; Bazzal, Ali M

2013-08-01

267

High frequency transposition of the Tn5 derivative Tn5493 in Streptomyces lividans.  

Science.gov (United States)

The mini-Tn5 derivative transposon Tn5493 transposes at a frequency as high as 3% in the Gram-positive bacterium Streptomyces lividans. The use of a thiostrepton-resistance gene and a temperature-sensitive delivery system carrying the transposase gene allows an easy selection for stable transposition events. Insertions into the S. lividans genome seem to be fairly random, as shown by Southern blot and pulsed-field gel electrophoresis (PFGE). Transpositions were easily mapped by PFGE using the restriction sites of rare-cutting enzymes present in the transposon. Because of its characteristics, Tn5493 is a promising tool for genetic and molecular analysis and manipulation of the antibiotic-producing streptomycetes. PMID:9266676

Volff, J N; Altenbuchner, J

1997-07-18

268

Local transposition of a hobo element within the decapentaplegic locus of Drosophila.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We have efficiently mobilized a phenotypically silent hobo transgene inserted within the cis-regulatory heldout region of the decapentaplegic (dpp) locus in Drosophila melanogaster. The goal of our experiment was to identify germline transmission of a local transposition event within the dpp locus that meets two specific criteria. First, excision of the hobo construct does not generate an adult mutant phenotype, suggesting minimal alteration to the original site of insertion. Second, we requi...

Newfeld, S. J.; Takaesu, N. T.

1999-01-01

269

Regiochemical Control in the Metal-Catalyzed Transposition of Allylic Silyl Ethers  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A novel mode of regiochemical control over the allylic [1,3]-transposition of silyloxy groups catalyzed by Re2O7 has been developed. This strategy relies on a cis-oriented vinyl boronate, generated from the Alder ene reaction of homoallylic silyl ethers and alkynyl boronates, to trap out the allylic hydroxyl group. The resulting cyclic boronic acids are excellent partners for cross coupling reactions. High chirality transfer is observed for the rearrangement of enantioenriched allylic silyl e...

2006-01-01

270

Cardiorespiratory exercise performance after Senning operation for transposition of the great arteries.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

OBJECTIVE--To assess the cardiorespiratory response to graded exercise in patients after the Senning operation for transposition of the great arteries. DESIGN--Cross sectional study. Exercise performance was assessed by determination of the ventilatory anaerobic threshold. This was defined as the exercise intensity at which the ventilatory equivalent for oxygen (VE/VO2) started to increase systematically without a concomitant increase in the ventilatory equivalent for carbon dioxide (VE/VCO2)...

1993-01-01

271

Genomic instability due to V(D)J recombination-associated transposition  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The first step in assembling immunoglobulin and T-cell receptors by V(D)J recombination has similarities to transposon excision. The excised transposon-like element then integrates into DNA targets at random in vitro, but whether this activity significantly threatens the genomic integrity of its host has been unclear. Here, we recover examples where the putative transposon associated with V(D)J recombination integrated into the genome of a pre-B-cell line. Transposition accounted for a surpri...

Reddy, Yeturu V. R.; Perkins, Eric J.; Ramsden

2006-01-01

272

Effect of omental transposition to the brain on protein synthesis in experimental cerebral ischaemia.  

Science.gov (United States)

Occlusion of the middle cerebral artery severely affects the uptake of labelled leucine into various subcellular fractions from rabbit brain. Previous transposition of pedicled omentum to the cerebral surface maintains to a large extent the protein synthetic activity of the brain following arterial occlusion. The role of the transposed omentum in providing an effective collateral circulation and minimizing the occurrence of irreversible ischaemic lesions is stressed. PMID:7368999

Cucca, G S; Papavero, L; Pau, A; Sehrbundt Viale, E; Turtas, S; Viale, G L

1980-01-01

273

Neonatal death due to transposition in association with premature closure of the oval foramen.  

Science.gov (United States)

We present a male infant, born at term, who collapsed and died at 30 minutes of age. Autopsy demonstrated concordant atrioventricular and discordant ventriculo-arterial connections with premature closure of the oval foramen, which bulged markedly into the left atrium. Premature closure of the oval foramen is rare in the setting of transposition. As far as we know, there have been only three previously reported cases. PMID:17116273

Ashworth, Michael; Al Adnani, Mudher; Sebire, Neil J

2006-12-01

274

Regulated complex assembly protects cells from aberrant Sleeping Beauty transposition events  

Digital Repository Infrastructure Vision for European Research (DRIVER)

?Transposons sind genetische Elemente, die fähig sind, sich innerhalb des Genoms zu bewegen. Sleeping Beauty (SB) gehört zur Tc1/mariner-Superfamilie von Transposons. SB wurde aus molekularen Fossilien rekonstruiert um u.a. einen sicheren und effizienten Vektor für die Gentherapie zu schaffen. Zu diesem Zweck ist es notwendig, den Mechanismus der SB-Transposition und deren Regulation, die Aktivitäten des Proteins und den Einfluss von Wirtsfaktoren genau zu verstehen. In meiner Arbeit ha...

Pryputniewicz-drobin?ska, Diana

2010-01-01

275

Transposition of a pericardial-derived vascular adipose flap for myocardial salvage after infarct  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Aims Coronary artery occlusion is associated with the risk of ventricular remodelling, heart failure, and cardiogenic shock. Novel strategies are sought to treat these ominous complications. We examined the effect of a pericardial-derived fat flap secured over an acute infarct caused by coronary occlusion. Methods and results A novel intervention consisting of the pericardial isolation of a vascularized adipose flap and its transposition fully covering acute infarcted myocardium was developed...

Galvez-monton, Carolina; Prat-vidal, Cristina; Roura, Santiago; Farre, Jordi; Soler-botija, Carolina; Llucia-valldeperas, Aida; Diaz-gueemes, Idoia; Sanchez-margallo, Francisco M.; Aris, Alejandro; Bayes-genis, Antoni

2011-01-01

276

On tests of entanglement: States of rank 2, partial transposition and generalized concurrences  

CERN Document Server

We consider the positive partial transposition test (PPT) and the generalized concurrence test for the entanglement of bipartite quantum systems in the simplest case not previously studied in the literature. This is the case of 2 X 4 states of rank 2. We prove that the PPT test gives a necessary and sufficient condition of separability and identify a set of entangled states not detected using generalized concurrences.

Cattaneo, Laura

2008-01-01

277

Midterm results after arterial switch operation for transposition of the great arteries: a single centre experience  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract Background The arterial switch operation (ASO) has become the surgical approach of choice for d-transposition of the great arteries (d-TGA). There is, however an increased incidence of midterm and longterm adverse sequelae in some survivors. In order to evaluate operative risk and midterm outcome in this population, we reviewed patients who underwent ASO for TGA at our centre. Methods In this retrospective study 52 consecutive patients with TGA who underwent ASO between 04/1991 and 1...

Popov, Aron Frederik; Tirilomis, Theodor; Giesler, Michael; Oguz Coskun, Kasim; Hinz, Jose; Hanekop, Gerd Gunnar; Gravenhorst, Verena; Paul, Thomas; Ruschewski, Wolfgang

2012-01-01

278

Optical transposition transform interconnects using a free-space and fiber hybrid module  

Science.gov (United States)

Cross-connect switch is a popular switching architecture for telecom and datacom applications. Using various switching components and a k-shuffle interconnect, a cross-connect switch can be configured for general-purpose, blocking as well as non-blocking networking applications. We show that a 1D k-shuffle interconnect pattern is topologically equivalent to a 2D transposition transform pattern. Based on this observation and using space-invariant optical components, the transposition transform interconnect is experimentally implemented. To achieve a sensible packing, we propose to incorporate fiber arrays into the implementation so that the interconnect offers connectorized plug-and-play capability with its switching arrays. Experimental results of implementing a 256 X 256 connectorized free-space and fiber hybrid transposition transform interconnect for cross-connect switching are presented. Key parameters, such as insertion loss, cross- talk, and bit-error-rate of the hybrid interconnect module are measured. Video data are used to demonstrate interconnect quality of various link channels. Scalability to larger interconnects are speculated.

Popelek, Jan; Li, Yao

1999-04-01

279

Microarray analysis of transposition targets in Escherichia coli: the impact of transcription.  

Science.gov (United States)

Transposable elements have influenced the genetic and physical composition of all modern organisms. Defining how different transposons select target sites is critical for understanding the biochemical mechanism of this type of recombination and the impact of mobile genes on chromosome structure and function. Phage Mu replicates in Gram-negative bacteria using an extremely efficient transposition reaction. Replicated copies are excised from the chromosome and packaged into virus particles. Each viral genome plus several hundred base pairs of host DNA covalently attached to the prophage right end is packed into a virion. To study Mu transposition preferences, we used DNA microarray technology to measure the abundance of >4,000 Escherichia coli genes in purified Mu phage DNA. Insertion hot- and cold-spot genes were found throughout the genome, reflecting >1,000-fold variation in utilization frequency. A moderate preference was observed for genes near the origin compared to terminus of replication. Large biases were found at hot and cold spots, which often include several consecutive genes. Efficient transcription of genes had a strong negative influence on transposition. Our results indicate that local chromosome structure is more important than DNA sequence in determining Mu target-site selection. PMID:15210965

Manna, Dipankar; Breier, Adam M; Higgins, N Patrick

2004-06-29

280

DNA transposition by protein transduction of the piggyBac transposase from lentiviral Gag precursors  

DEFF Research Database (Denmark)

DNA transposon-based vectors have emerged as gene vehicles with a wide biomedical and therapeutic potential. So far, genomic insertion of such vectors has relied on the co-delivery of genetic material encoding the gene-inserting transposase protein, raising concerns related to persistent expression, insertional mutagenesis and cytotoxicity. This report describes potent DNA transposition achieved by direct delivery of transposase protein. By adapting integrase-deficient lentiviral particles (LPs) as carriers of the hyperactive piggyBac transposase protein (hyPBase), we demonstrate rates of DNA transposition that are comparable with the efficiency of a conventional plasmid-based strategy. Embedded in the Gag polypeptide, hyPBase is robustly incorporated into LPs and liberated from the viral proteins by the viral protease during particle maturation. We demonstrate lentiviral co-delivery of the transposase protein and vector RNA carrying the transposon sequence, allowing robust DNA transposition in a variety of cell types. Importantly, this novel delivery method facilitates a balanced cellular uptake of hyPBase, as shown by confocal microscopy, and allows high-efficiency production of clones harboring a single transposon insertion. Our findings establish engineered LPs as a new tool for transposase delivery. We believe that protein transduction methods will increase applicability and safety of DNA transposon-based vector technologies.

Cai, Yujia; Bak, Rasmus O.

2013-01-01

 
 
 
 
281

Reactions of carbon radicals generated by 1,5-transposition of reactive centers  

Directory of Open Access Journals (Sweden)

Full Text Available Radical intermediates can undergo specific reactions, such as intramolecular rearrangements, i.e., the transpositions of radical centers, which are not known in classical ionic organic reactions. 1,5-Transposition of a radical center to a non-activated carbon atom are of great synthetic importance. It can be successfully applied for the introduction of different functional groups (oxygen, nitrogen, sulfur, halogens onto a carbon atom remote from the present functional group. In addition to functionalization of a remote non-activated carbon atom, the formation of new C-C bonds on the d-carbon atom have also been achieved. 1,5-Transposition of the radical centers takes place from alkoxyl, aminyl and carbon radicals to a remote carbon atom. Relocation of the radical centers preferentially involves 1,5-transfer of a hydrogen atom, although migrations of some other groups are known. The reactions of the carbon radical generated by 1,5-relocation of the radical center are presented and their synthetic applications are reviewed.

ZIVORAD CEKOVIC

2005-03-01

282

Correlated accumulation of anthocyanins and rosmarinic acid in mechanically stressed red cell suspensions of basil (Ocimum basilicum).  

Science.gov (United States)

A red basil cell line (T2b) rich in rosmarinic acid (RA) was selected for the stable production of anthocyanins (ACs) in the dark. Cell suspension cultures were subjected to mechanical stress through increased agitation (switch from 90 to 150 rpm) to determine the relationship between AC and RA accumulation. Cell extracts were analyzed by HPLC and LC-MS, and the resulting data were processed with multivariate statistical analysis. MS and MS/MS spectra facilitated the putative annotation of several complex cyanidin-based ACs, which were esterified with coumaric acid and, in some cases, also with malonic acid. It was also possible to identify various RA-related molecules, some caffeic and coumaric acid derivatives and some flavanones. Mechanical stress increased the total AC and RA contents, but reduced biomass accumulation. Many metabolites were induced by mechanical stress, including RA and some of its derivatives, most ACs, hydroxycinnamic acids and flavonoids, whereas the abundance of some RA dimers was reduced. Although AC and RA share a common early biosynthetic pathway (from phenylalanine to 4-coumaroyl-CoA) and could have similar or overlapping functions providing antioxidant activity against stress-generated reactive oxygen species, there appeared to be no competition between their individual pathways. PMID:20943285

Strazzer, Pamela; Guzzo, Flavia; Levi, Marisa

2011-02-15

283

Undergraduate Sustainable Learning: Effects of Sustainable Soilless Media on Production and Sensory Evaluation of Cucumbers, Basil, Parsley, and Lettuce  

Directory of Open Access Journals (Sweden)

Full Text Available Modern greenhouse production has been ~100% reliant on fossil fuels for all inputs (glazing, heating, fertilization, lighting, post-harvest. Recent innovations may reduce fossil fuel dependence but their effectiveness may not be thoroughly tested. To promote education in sustainable production, undergraduate students in Greenhouse Management class (Hort 3002W; University of Minnesota tested the effectiveness of two organic or ‘sustainable’ soilless media (Sunshine Natural and Organic Growing Mix, Sungro Metro-Mix Special Blend with a control (Sunshine LC8 Professional for crop production (height, leaf/flower number, yield and sensory evaluations (appearance, texture, taste, purchase of cucumbers (‘Big Burpless Hybrid’, ‘Sweet Burpless Hybrid’, basil (‘Opal Purple’, ‘Redleaf’, parsley (‘Green River’, ‘Extra Curled Dwarf’, ‘Hamburg’, and lettuce (Flying Saucer ‘Green’, ‘Red’. Significant differences between sustainable vs. control soils occurred for plant growth, depending on vegetative or reproductive traits, crops, and cultivars. These differences occasionally disappeared for sensory evaluation of edible components. In most crops, however, cultivars were highly significant factors. Undergraduate research can be used to provide directionality for future vegetable and herb plant breeding to focus on creating cultivars with increased yield and high consumer acceptance when grown in sustainable greenhouse soilless mixes.

Victoria Russell

2011-08-01

284

Ocimum sanctum L (Holy Basil or Tulsi) and its phytochemicals in the prevention and treatment of cancer.  

Science.gov (United States)

Ocimum sanctum L. or Ocimum tenuiflorum L, commonly known as the Holy Basil in English or Tulsi in the various Indian languages, is a important medicinal plant in the various traditional and folk systems of medicine in Southeast Asia. Scientific studies have shown it to possess antiinflammatory, analgesic, antipyretic, antidiabetic, hepatoprotective, hypolipidemic, antistress, and immunomodulatory activities. Preclinical studies have also shown that Tulsi and some of its phytochemicals eugenol, rosmarinic acid, apigenin, myretenal, luteolin, ?-sitosterol, and carnosic acid prevented chemical-induced skin, liver, oral, and lung cancers and to mediate these effects by increasing the antioxidant activity, altering the gene expressions, inducing apoptosis, and inhibiting angiogenesis and metastasis. The aqueous extract of Tulsi and its flavanoids, orintin, and vicenin are shown to protect mice against ?-radiation-induced sickness and mortality and to selectively protect the normal tissues against the tumoricidal effects of radiation. The other important phytochemicals like eugenol, rosmarinic acid, apigenin, and carnosic acid are also shown to prevent radiation-induced DNA damage. This review summarizes the results related to the chemopreventive and radioprotective properties of Tulsi and also emphasizes aspects that warrant future research to establish its activity and utility in cancer prevention and treatment. PMID:23682780

Baliga, Manjeshwar Shrinath; Jimmy, Rosmy; Thilakchand, Karadka Ramdas; Sunitha, Venkatesh; Bhat, Neeta Raghavendra; Saldanha, Elroy; Rao, Suresh; Rao, Pratima; Arora, Rajesh; Palatty, Princy L

2013-01-01

285

Ultrasound-guided subclavian vein catheterization  

International Nuclear Information System (INIS)

To assess the usefulness of the ultrasound-guided subclavian vein catheterization in difficult patients. We tried subclavian vein catheterization in 18 patients in which conventional blind technique failed(N=9): or was complicated by hemothorax or pneumothorax(N=3): or was prohibited by respirator care(N=4) and severe thoracic deformity(N=2). Initially, the patency of subclavian vein was evaluated with ultrasonography, and then, the puncture of the subclavian vein was performed under the guidance of ultrasonography. Under the fluoroscopy, the patency of the proximal subclavian vein and the superior vena cava was evaluated after contrast-media injection and a catheter was inserted into the subclavian vein and accurately positioned at the superior vena cava. Successful catheterization was performed in 17 patients. In the remaining one patient, we did not perform catheterization because of bilateral subclavian vein thrombosis detected during the procedure. There were no procedure-related complications. Ultrasound-guided subclavian vein catheterization is an easy and safe method even in difficult cases

1994-11-01

286

If I Had - Deep Vein Thrombosis  

Medline Plus

Full Text Available ... with Dr. Kenneth Saag, MD) If I Had - Deep Vein Thrombosis - Dr. David Lee, MD In the Spotlight - Dr. ... Researcher Back to Home Page If I Had - Deep Vein Thrombosis - Dr. David Lee, MD (November 15, 2007 - Insidermedicine) ...

287

Retinal vein occlusion: pathophysiology and treatment options  

Directory of Open Access Journals (Sweden)

Full Text Available Niral KariaDepartment of Ophthalmology, Southend Hospital, Prittlewell Chase, Westcliff on Sea, Essex, United KingdomAbstract: This paper reviews the current thinking about retinal vein occlusion. It gives an overview of its pathophysiology and discusses the evidence behind the various established and emerging treatment paradigms.Keywords: central, hemispheric, branch, retinal vein occlusion, visual loss

Niral Karia

2010-07-01

288

[Arteriovenous dissection for branch retinal vein occlusion].  

Science.gov (United States)

Arteriovenous dissection (AVD) is a surgical maneuver to separate the retinal artery and vein at the crossing site in patients with branch retinal vein occlusion (BRVO). The published studies showed an evidence level 3. AVD seems to be maintainable in patients with recent onset of BRVO and decimal visual acuity < or =0.4. PMID:18317778

Feltgen, N; Hattenbach, L-O; Mirshahi, A; Hansen, L

2008-04-01

289

Sonographic demonstration of the left ovarian vein  

International Nuclear Information System (INIS)

Amongst 737 sonographic and CT examinations of women aged 18 to 60 years of age, seven cases of ectasia of the left ovarian vein were found (0.95%). The aetiology and significance of this finding in the context of the 'compression syndrome of the left renal vein' are discussed. The value to sonography in elucidating this condition is stressed. (orig.)

1984-08-01

290

Improving the management of varicose veins.  

Science.gov (United States)

Up to 30% of the UK population are affected by varicose veins. They are a manifestation of increased venous pressure in the lower limb caused by impaired venous return. Primary varicosities result from poor drainage from the superficial to the deep venous system. Secondary varicosities arise as a result of underlying pathology impeding venous drainage, such as deep venous thrombosis or increased intra-abdominal pressure caused by a mass, pregnancy or obesity. Patients with bleeding varicose veins should be referred to a vascular service immediately. Referral is also indicated in the following cases: symptomatic primary or recurrent varicose veins; lower limb skin changes thought to be caused by chronic venous insufficiency; superficial vein thrombosis and suspected venous incompetence; a venous leg ulcer or healed venous leg ulcer. Imaging is crucial in the assessment of the superficial and deep venous system to enable assessment of venous competence. The gold standard imaging technique is colour duplex ultrasonography. Duplex ultrasound should be used to confirm the diagnosis of varicose veins and the extent of truncal reflux, and to plan treatment for patients with suspected primary or recurrent varicose veins. Superficial vein ligation, phlebectomy and stripping have been the mainstay of treatment. In recent years, new techniques have been developed that are minimally invasive, enabling treatment of superficial venous incompetence with reduced morbidity. NICE recommends that endothermal ablation, in the form of radiofrequency or laser treatment, should be offered as treatment for patients with confirmed varicose veins and truncal reflux. PMID:24555256

Onida, Sarah; Lane, Tristan R A; Davies, Alun H

2013-01-01

291

Asymmetric Processing of Human Immunodeficiency Virus Type 1 cDNA In Vivo: Implications for Functional End Coupling during the Chemical Steps of DNA Transposition  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Retroviral integration, like all forms of DNA transposition, proceeds through a series of DNA cutting and joining reactions. During transposition, the 3? ends of linear transposon or donor DNA are joined to the 5? phosphates of a double-stranded cut in target DNA. Single-end transposition must be avoided in vivo because such aberrant DNA products would be unstable and the transposon would therefore risk being lost from the cell. To avoid suicidal single-end integration, transposons link t...

Chen, Hongmin; Engelman, Alan

2001-01-01

292

Estudio de las Venas de la Fosa Cubital a través de la Tomografía Computada Helicoidal y su Aplicación Clínica Study of the Veins of the Cubital Fossa by Helical Computed Tomography and its Clinical Application  

Directory of Open Access Journals (Sweden)

Full Text Available Las venas superficiales de la fosa cubital, constituyen uno de los sitios más importantes de punción venosa. La disposición de estas venas presenta numerosas variaciones. Su anatomía no ha sido estudiada aplicando los avances tecnológicos en el campo de la medicina, como la tomografía computada helicoidal. Fueron analizadas mediante tomografía axial computada helicoidal, las formaciones venosas de la fosa cubital en 60 individuos chilenos de ambos sexos, de edades entre 10 y 86 años, de la IX Región de La Araucanía, Chile. El estudio fue realizado en un tomógrafo General Electric, modelo CT/e, perteneciente al Centro de Imagenología del Hospital del Trabajador, Temuco, Chile, en individuos ambulatorios. Basados en la clasificación de del Sol et al. (1988 para las formaciones venosas de la fosa cubital, se obtuvo los siguientes resultados: Tipo I (46,7%, la vena cefálica del antebrazo (VCA, se divide en vena mediana basílica (VMB y vena mediana cefálica (VMC, las que se unen a la vena basílica del antebrazo (VBA y vena cefálica del accesoria del antebrazo (VCAA, respectivamente. Tipo II (13,3%, la VCA originó la vena mediana del codo (VMCo, que se une a la VBA. Tipo III (20%, no existe comunicación entre la VBA y VCA a nivel de la fosa cubital. Tipo IV (8,3%, la VCA drenaba en la VBA. Tipo V (11,7%. Otras disposiciones, donde se incluye la "M" clásica, que resulta de la división de la vena mediana del antebrazo. La utilización de la VMC o de la VCA, se recomienda ya que previene los riesgos de punción de otras estructuras anatómicas importantes como el ramo anterior del nervio cutáneo antebraquial medial.The superficial veins of the cubital fossa, is one of the most important sites of venipunctures. There are many variations in the arrangement of these veins. Their anatomy has not been studied using technology available in the field of medicine such, as helical computed tomography. The vein formation of the cubital fossa in 60 Chilean subjects of both sexes, between 10 and 86 years of age of the IX Region of Araucania, Chile, were analyzed by helical computed tomography. The study was realized on a General Electric scanner, model CT / e, belonging to the Imaging Center of the Hospital del Trabajador, Temuco, Chile, in ambulatory subjects. Based on the classification of del Sol et al. (1988 for the vein formation of the cubital fossa, we obtained the following results: Type I (46.7%, the cephalic vein of forearm (CVF, is divided into median basilic vein (MBV and median cephalic vein (MCV, then anastomosis the basilic vein of forearm (BVF and cephalic vein accessory (CVA, respectively. Type II (13.3%, the CVA originates at the median cubital vein (MCuV, which anastomoses to the BVF. Type III (20%, there is no communication between BVF and CVF at the cubital fossa. Type IV (8.3%, CVF drains into the BVF. Type V (11.7% - Other disposition, which include the "M" classical, resulting from the division of the median antebrachial vein. Using the MCV or CVF, is recommended, since there are risks of puncture of other important anatomical structures such as the anterior branch of the medial antebrachial cutaneous nerve.

Mariano del Sol

2012-03-01

293

Estudio de las Venas de la Fosa Cubital a través de la Tomografía Computada Helicoidal y su Aplicación Clínica / Study of the Veins of the Cubital Fossa by Helical Computed Tomography and its Clinical Application  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: Spanish Abstract in spanish Las venas superficiales de la fosa cubital, constituyen uno de los sitios más importantes de punción venosa. La disposición de estas venas presenta numerosas variaciones. Su anatomía no ha sido estudiada aplicando los avances tecnológicos en el campo de la medicina, como la tomografía computada heli [...] coidal. Fueron analizadas mediante tomografía axial computada helicoidal, las formaciones venosas de la fosa cubital en 60 individuos chilenos de ambos sexos, de edades entre 10 y 86 años, de la IX Región de La Araucanía, Chile. El estudio fue realizado en un tomógrafo General Electric, modelo CT/e, perteneciente al Centro de Imagenología del Hospital del Trabajador, Temuco, Chile, en individuos ambulatorios. Basados en la clasificación de del Sol et al. (1988) para las formaciones venosas de la fosa cubital, se obtuvo los siguientes resultados: Tipo I (46,7%), la vena cefálica del antebrazo (VCA), se divide en vena mediana basílica (VMB) y vena mediana cefálica (VMC), las que se unen a la vena basílica del antebrazo (VBA) y vena cefálica del accesoria del antebrazo (VCAA), respectivamente. Tipo II (13,3%), la VCA originó la vena mediana del codo (VMCo), que se une a la VBA. Tipo III (20%), no existe comunicación entre la VBA y VCA a nivel de la fosa cubital. Tipo IV (8,3%), la VCA drenaba en la VBA. Tipo V (11,7%). Otras disposiciones, donde se incluye la "M" clásica, que resulta de la división de la vena mediana del antebrazo. La utilización de la VMC o de la VCA, se recomienda ya que previene los riesgos de punción de otras estructuras anatómicas importantes como el ramo anterior del nervio cutáneo antebraquial medial. Abstract in english The superficial veins of the cubital fossa, is one of the most important sites of venipunctures. There are many variations in the arrangement of these veins. Their anatomy has not been studied using technology available in the field of medicine such, as helical computed tomography. The vein formatio [...] n of the cubital fossa in 60 Chilean subjects of both sexes, between 10 and 86 years of age of the IX Region of Araucania, Chile, were analyzed by helical computed tomography. The study was realized on a General Electric scanner, model CT / e, belonging to the Imaging Center of the Hospital del Trabajador, Temuco, Chile, in ambulatory subjects. Based on the classification of del Sol et al. (1988) for the vein formation of the cubital fossa, we obtained the following results: Type I (46.7%), the cephalic vein of forearm (CVF), is divided into median basilic vein (MBV) and median cephalic vein (MCV), then anastomosis the basilic vein of forearm (BVF) and cephalic vein accessory (CVA), respectively. Type II (13.3%), the CVA originates at the median cubital vein (MCuV), which anastomoses to the BVF. Type III (20%), there is no communication between BVF and CVF at the cubital fossa. Type IV (8.3%), CVF drains into the BVF. Type V (11.7%) - Other disposition, which include the "M" classical, resulting from the division of the median antebrachial vein. Using the MCV or CVF, is recommended, since there are risks of puncture of other important anatomical structures such as the anterior branch of the medial antebrachial cutaneous nerve.

Mariano, del Sol; Eugenio, Lillo; Leonardo, Lobos; Bélgica, Vásquez.

294

What Are the Signs and Symptoms of Deep Vein Thrombosis?  

Science.gov (United States)

... Are the Signs and Symptoms of Deep Vein Thrombosis? The signs and symptoms of deep vein thrombosis ( ... life-threatening problems if not treated. Deep Vein Thrombosis Only about half of the people who have ...

295

Are You At Risk for Deep Vein Thrombosis?  

Science.gov (United States)

... Bookmarks Are You at Risk for Deep Vein Thrombosis? Deep vein thrombosis occurs when a blood clot ... increases) Obesity Smoking Know the Symptoms Deep Vein Thrombosis About half of people with DVT have no ...

296

Calcified neonatal renal vein and vena caval thrombosis  

International Nuclear Information System (INIS)

We present an unusual case of an extensive venous thrombosis (involving the inferior vena cava, bilateral renal veins, gonadal vein and iliac veins) diagnosed in the neonatal period. The CT images revealed the typical diagnostic pattern. (orig.)

2006-05-01

297

Calcified neonatal renal vein and vena caval thrombosis  

Energy Technology Data Exchange (ETDEWEB)

We present an unusual case of an extensive venous thrombosis (involving the inferior vena cava, bilateral renal veins, gonadal vein and iliac veins) diagnosed in the neonatal period. The CT images revealed the typical diagnostic pattern. (orig.)

Sodhi, Kushaljit Singh; Khandelwal, Saurabh; Suri, Sudha [Postgraduate Institute of Medical Education and Research (PGIMER), Department of Radiodiagnosis, Chandigarh (India); Ray, Munni [Postgraduate Institute of Medical Education and Research (PGIMER), Department of Pediatrics, Chandigarh (India)

2006-05-15

298

Guide Wire Migration During Femoral Vein Catheterization  

Directory of Open Access Journals (Sweden)

Full Text Available Central vein catheterization is a routine and relatively safe procedure in critically ill patients. Complications with this procedure depend to the site of catheterization and the skill of the operator. In addition to the common complications with femoral vein catheterization there are some rare usually preventable side effects related to guide wire and catheter. In our patient who underwent femoral catheterization for acute hemodialysis, we report migration of guide wire through the systemic circulation from the femoral vein to the jugular vein. This is a very rare complication that is a human error and is totally preventable by doing the procedure by a skilled doctor and considering the standards described for central vein catheter insertion.

Mohammad Reza Khatami

2010-09-01

299

Tensile Properties of Veins of Damselfly Wing  

Directory of Open Access Journals (Sweden)

Full Text Available Microtension test of Costa and Radius veins of damselfly wing was conducted to measure tensile strength and modulus. The specimens were classified into fresh and dry depending on when the samples were prepared and tested. Fresh samples tested immediately after extracting from the fly while the dry samples were tested one year after extraction and stored in a desiccator. Measured load-displacement response and fracture load were used to calculate modulus and strength. Field Emission Scanning Electron Microscope was used to measure the fracture morphology and cross-section of the vein. The results showed that the veins are brittle and fracture surface is flat. The average strength (232 - 285 MPa and modulus (14 - 17 GPa of the Costa and Radius veins were nearly same for both fresh and dry samples. The tensile modulus of the veins was 8% - 10% higher than the indentation (compressive modulus and was nearly the same as that of human bones.

Rupan Talucdher

2013-06-01

300

Renal vein extension in right kidney transplantation.  

Science.gov (United States)

A short right renal vein may be associated with technical problems in renal transplantation. For this reason, a vena caval extension may be useful to improve exposure of the anastomosis and graft placement. This report evaluates the safety and the effectiveness of renal vein extension, which was routinely performed in right renal transplantation. From April 1986 to December 2002, we performed 371 right kidney transplantations with 252 using the standard technique (group A) and 119 using the renal vein extension (group B). No statistical differences were found between the 2 groups in terms of renal vein thrombosis incidence, delayed graft function, morbidity, and graft loss. Indeed, mean warm ischemia time was reduced in the venoplasty group. In conclusion, renal vein extension is an easy, safe technique that reduces warm ischemia time. We suggest more extensive use of this procedure in right kidney transplantation. PMID:15110574

Dalla Valle, R; Mazzoni, M P; Bignardi, L; Busi, N; Benozzi, L; Gualtierotti, M; Alessandri, L; Bezer, L; Iapichino, G; Capocasale, E; Sianesi, M

2004-04-01

 
 
 
 
301

Aberrant right gastric vein directly communicating with left portal vein system  

International Nuclear Information System (INIS)

In 3 patients with primary hepatic malignancies, a communication between the right gastric vein and the left portal vein system was recognized at angiography. The right gastric vein entered directly into the left lateral portal veins in 2 patients and into the left medial portal veins in one. Portal angio-CT performed in one patient demonstrated a specific defect only in the left lateral superior area of the liver, consistent with the segmental opacification of the portal vein branch recognized on the angiogram. This rare communication was seen in 3 (1.5%) of 200 consecutive patients who underwent celiac angiography and is most likely an anomaly in which the right gastric vein directly enters the left portal vein instead of the portal vein trunk. When interpreting a filling defect not associated with a mass lesion on portal angio-CT for hepatic neoplasms or the right gastric vein communicating with the left portal vein system on the angiogram, this particular anomaly should be considered. (orig.)

1990-01-01

302

Aberrant right gastric vein directly communicating with left portal vein system; Incidence and implications  

Energy Technology Data Exchange (ETDEWEB)

In 3 patients with primary hepatic malignancies, a communication between the right gastric vein and the left portal vein system was recognized at angiography. The right gastric vein entered directly into the left lateral portal veins in 2 patients and into the left medial portal veins in one. Portal angio-CT performed in one patient demonstrated a specific defect only in the left lateral superior area of the liver, consistent with the segmental opacification of the portal vein branch recognized on the angiogram. This rare communication was seen in 3 (1.5%) of 200 consecutive patients who underwent celiac angiography and is most likely an anomaly in which the right gastric vein directly enters the left portal vein instead of the portal vein trunk. When interpreting a filling defect not associated with a mass lesion on portal angio-CT for hepatic neoplasms or the right gastric vein communicating with the left portal vein system on the angiogram, this particular anomaly should be considered. (orig.).

Takayasu, K.; Aoki, K.; Ichikawa, T.; Ohmura, T.; Sekiguchi, R.; Terauchi, T.; Takayama, T. (National Cancer Center Hospital, Tokyo (Japan). Dept. of Diagnostic Radiology National Cancer Center Hospital, Tokyo (Japan). Dept. of Surgery)

1990-11-01

303

Primary varicose veins: Frequency, clinical significance and surgical treatment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

INTRODUCTION According to the definition of the World Health Organization, varicose veins represent abnormally enlarged superficial veins having baggy or cylindrical shape. The most frequent cause of primary varicose veins is the insufficiency of long saphenous vein (LSV), but especially the basin of its connection with femoral vein and perforating veins. OBJECTIVE The objectives of these investigations were: the determination of insufficiency incidence of SSV in cases of LSV insufficiency; t...

Vasi? Dragan M.; Davidovi? Lazar B.; Maksimovi? Živan V.; Crni Aleksandra R.; Markovi? Miroslav D.; Pejki? Siniša D.

2004-01-01

304

A Nonlinear Thin-Wall Model for Vein Buckling  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Tortuous or twisted veins are often seen in the retina, cerebrum, and legs (varicose veins) of one-third of the aged population, but the underlying mechanisms are poorly understood. While the collapse of veins under external pressure has been well documented, the bent buckling of long vein segments has not been studied. The objectives of this study were to develop a biomechanical model of vein buckling under internal pressure and to predict the critical pressure. Veins were modeled as thin-wa...

Lee, Avione Y.; Han, Hai-chao

2010-01-01

305

Duplex sonography of the near-surface leg veins  

International Nuclear Information System (INIS)

The book contains the following contributions: The ultrasonograph, selection of the ultrasonic transducer, anatomy of the near-surface vein system, physiology of the near-surface vein system, varicose status classification, systematics of the duplex sonography of near-surface leg veins, provocational maneuver for the duplex sonographic varicose diagnostics, exploration of vena saphena parva, perforans veins, side branches, phlebitis, sonography for varicose therapy, postsurgical sonography, deep leg veins, examination of near-surface leg veins for the pathology of the deep vein system, differential diagnostic clarification of leg oedema from the phlebologic-lymphological view, diagnostic side features along the near-surface leg veins

2007-01-01

306

Radionuclide angiographic evaluation of right and left ventricular function during exercise after repair of transposition of the great arteries. Comparison with normal subjects and patients with congenitally corrected transposition  

International Nuclear Information System (INIS)

We assessed the incidence, clinical significance and etiology of ventricular dysfunction after intraatrial repair of d-transposition of the great arteries in 11 patients, mean age 9 +/- 3 years, who had had Mustard operations. We compared the results to 15 patients who were considered to have normal ventricular function, two patients who had Rastelli operations and five patients with congenitally corrected transposition. Gated equilibrium radionuclide angiography with supine exercise stress testing was used to assess these children. We found no significant difference between our patient groups in exercise capacity, heart rate, or blood pressure response to exercise. However, we found a high incidence of right ventricular dysfunction in the patient groups, manifested by an abnormal right ventricular ejection fraction response to dysfunction in the patient groups, manifested by an abnormal right ventricular ejection fraction response to exercise in six of 11 patients with a Mustard repair, both patients with a Rastelli repair and all five with congenitally corrected transposition. In addition, the left ventricular response to exercise was abnormal in 10 of 11 patients who had undergone a Mustard repair, both patients with a Rastelli repair, and two of five patients with congenitally corrected transposition. We conclude that biventricular dysfunction is frequently present after intraatrial repair of d-transposition of the great arteries. Despite this dysfunction, no significant decrease in exercise tolerance is found in childhood

1983-01-01

307

Personal authentication through dorsal hand vein patterns  

Science.gov (United States)

Biometric identification is an emerging technology that can solve security problems in our networked society. A reliable and robust personal verification approach using dorsal hand vein patterns is proposed in this paper. The characteristic of the approach needs less computational and memory requirements and has a higher recognition accuracy. In our work, the near-infrared charge-coupled device (CCD) camera is adopted as an input device for capturing dorsal hand vein images, it has the advantages of the low-cost and noncontact imaging. In the proposed approach, two finger-peaks are automatically selected as the datum points to define the region of interest (ROI) in the dorsal hand vein images. The modified two-directional two-dimensional principal component analysis, which performs an alternate two-dimensional PCA (2DPCA) in the column direction of images in the 2DPCA subspace, is proposed to exploit the correlation of vein features inside the ROI between images. The major advantage of the proposed method is that it requires fewer coefficients for efficient dorsal hand vein image representation and recognition. The experimental results on our large dorsal hand vein database show that the presented schema achieves promising performance (false reject rate: 0.97% and false acceptance rate: 0.05%) and is feasible for dorsal hand vein recognition.

Hsu, Chih-Bin; Hao, Shu-Sheng; Lee, Jen-Chun

2011-08-01

308

On dynamics of uranium vein mineralization  

International Nuclear Information System (INIS)

The formation of urnaium vein deposits and the essence of consanguinity of the mineralization and wall metasomatites are considered. The formation of uranium mineralization is analysed from the positions of Korzhinsky D. S. : the formation of metasomatite aureole and associated vein ores take place as a result of the development of one solution flow while the formation of mineral vein associations occurs on the background of contineous filtration of the solution during metasomato is due to a repeated (pulse) half-opening of fractures and their filling with a part of filtrating solution. The analysis of the available information on the example of two different uranium manifestations permits to reveal certain relations both in the character of wall rock alterations and between the metasomatosis and the formation of ore minerals in veins. The conclusion is made that spatial-time correlations of vein formations with wall metasomatites attest that the pulse formation of ores in veinlets occurs on the background and in interrelation with a consecutive precipitation of components in the aureole volume. The analysis of element migration dynamics in wall aureole carried out from the positions of the Korzhinsky hypothesis of the advance wave of acid components that takes into account the interaction of continuous and pulse mechanisms of solution movement permits to avoid contradictions when interpreting the processes of wall rock alterations and vein ore-forming, and permits to make a common scheme of vein ore-genesis

1981-01-01

309

Valsalva and gravitational variability of the internal jugular vein and common femoral vein: Ultrasound assessment  

International Nuclear Information System (INIS)

Purpose: Central venous cannulation via the common femoral vein is an important starting point for many interventions. The purpose of this study was to determine the optimum conditions for cannulation of the femoral vein and to compare these with the relative changes in the internal jugular vein. Methods: High-resolution 2D ultrasound was utilised to determine variability of the calibre of the femoral and internal jugular veins in 10 healthy subjects. Venous diameter was assessed during the Valsalva manoeuvre and in different degrees of the Trendelenburg position. Results: The Valsalva manoeuvre significantly increased the size of the femoral and internal jugular veins. There was a relatively greater increase in femoral vein diameter when compared with the internal jugular vein of 40 and 29%, respectively. Changes in body inclination (Trendelenburg position) did not significantly alter the luminal diameter of the femoral vein. However, it significantly increased internal jugular vein diameter. Conclusions: Femoral vein cannulation is augmented by the Valsalva manoeuvre but not significantly altered by the gravitational position of the subject

2006-05-01

310

Fisiología poscosecha de albahaca (Occimum basilicum L.) con y sin acolchado / Postharvest physiology of basil (Occimum basilicum L.) with and without mulching  

Scientific Electronic Library Online (English)

Full Text Available SciELO Mexico | Language: Spanish Abstract in spanish Con la finalidad de estudiar el efecto de las bajas temperaturas sobre la calidad poscosecha de albahaca (Occimum basilicum L.), producida con y sin acolchado, en atmósfera modificada, se cuantificó su comportamiento en almacenamiento a 0, 5, 7 y 20 °C, durante 16 días, en un diseño experimental com [...] pletamente al azar, con tres repeticiones. La unidad experimental consistió en un manojo de hierbas de 30 g. Se evaluaron los sólidos solubles totales, acidez titulable, potencial de hidrógeno, clorofilas, carotenoides, contenido de amonio, color, pérdida de peso fresco, y además se realizó una evaluación hedónica, en donde se tomó en cuenta apariencia visual, turgencia, apariencia comercial, pudrición y amarillamiento. Hubo diferentes efectos de las temperaturas sobre la calidad poscosecha. La albahaca sufrió daños por frío a 0 °C. Sin embargo a 5 °C se incrementó la vida poscosecha y se conservaron sus características fisicoquímicas. El uso del acolchado no influyó en la calidad poscosecha. Abstract in english In order to study the effect of low temperatures on postharvest quality of basil (Occimum basilicum L.), grown with and without mulching, under modified atmosphere, its behavior was quantified in storage at 0, 5, 7 and 20 °C, for 16 days using a completely randomized design with three replications. [...] The experiment unit consisted of a 30 g herbal bundle. Total soluble solids, titratable acidity, hydrogen potential, chlorophylls, carotenoids, ammonium content, color, fresh weight loss were evaluated. A hedonic evaluation was carried out, taking into account the following elements: visual appearance, turgidity, trade dress, decay and yellowing. Temperatures provoked different effects on postharvest quality. Basil suffered chilling injury at 0 °C. However, postharvest life of basil increased and its physicochemical characteristics remained similar at 5 °C. Postharvest quality was not affected by the use of mulching.

Verónica, Núñez-López; Ma. Teresa, Martínez-Damián; Ma. Teresa, Colinas-León.

311

Portal Vein Thrombosis after Splenectomy  

Directory of Open Access Journals (Sweden)

Full Text Available Background and Aim of the work: Splenectomy is a common operation but it carries the danger of many postoperative complications. One of the most important complications is the portal vein thrombosis (PVT, which may be fatal due to development of bowel ischemia and severe portal hypertension. Due to the effect of hypobaric hypoxia and higher liability for thrombosis encountered in high altitude areas, PVT may represent an actual problem in Taif province. The aim of this retrospective study is to detect the incidence, pattern of presentation, laboratory, radiological and results of treatment of cases of PVT following splenectomy.Methods: In this study, we reviewed all cases of splenectomy performed in King Abdul Aziz Specialist Hospital, Taif, Saudi Arabia from January 2007 to January 2012. Cases of PVT following splenectomy were analyzed for incidence, pattern of presentation, laboratory, radiological and results of treatment. Results: This study involved 50 patients (40 males and 10 females admitted in the surgical department of King Abdul Aziz Specialist Hospital, Taif, Saudi Arabia from January 2007 to January 2012. Eight cases of Portal vein thrombosis (16% out of 50 splenectomies were identified. These 8 patients included: 4/10 of the patients (40% suffering from myeloproliferative (MP, 3 of them (75% had spleen weight greater than 3,000 g, 3/12 (25% of the hemolytic anemia patients, and 1/10 of the patients (10% operated upon for Hypersplenism. All patients had splenomegaly with mean weight of 1540 Gms (range 460 to 3850 g. Presenting symptoms included; anorexia in 7/8 cases (87.5%, abdominal pain in 6 (75%, and in all cases there was elevation in D-Dimer level, leukocyte and platelet counts. All diagnoses were made by contrast-enhanced computed tomography scan, and anticoagulation was initiated immediately. One/8 patients (12.5% died from progressive liver cell failure; the others are alive with no clinical sequalae at a mean follow up of 27 months.CONCLUSIONS: PVT is a relatively common complication of splenectomy in patients with Splenomegaly, especially in Taif and related districts in which there is already a higher incidence of thrombotic disorders. The surgeon has to be with high index of suspicion, for early diagnosis by contrast-enhanced computed tomography, and prompt anticoagulation for successful outcome.

Mohamed Al Saeed

2012-07-01

312

Phase equilibrium in systems with ionic liquids: An example for the downstream process of the Biphasic Acid Scavenging utilizing Ionic Liquids (BASIL) process. Part I: Experimental data  

International Nuclear Information System (INIS)

Highlights: ? Phase equilibrium for a downstream process in sustainable chemical technology. ? Biphasic Acid Scavenging Utilizing Ionic Liquids (BASIL) Process. ? SLE, LLE, and SLLE of (NaCl + water + 1-propanol + 1-MIM) and its ternary subsystems. ? Experimental phase equilibrium data at temperatures between 298 K and 333 K. - Abstract: Experimental results are presented for the (liquid + liquid), (solid + liquid) and (solid + liquid + liquid) equilibria occurring in the downstream process of a typical example for the Biphasic Acid Scavenging Utilizing Ionic Liquids (BASIL)-processes. In a BASIL process an organic base is used to catalyze a chemical reaction and, at the same time, to scavenge an acid that is an undesired side product of that reaction. The particular example of a BASIL process treated here is the reaction of 1-butanol and acetylchloride to butylacetate and hydrochloric acid, where the acid is scavenged by the organic base 1-methyl imidazole (1-MIM) resulting in the ionic liquid 1-methyl imidazolium chloride. The reaction results in a two-phase system as butylacetate and the ionic liquid reveal a large liquid–liquid miscibility gap. The organic base has to be recovered. This is commonly achieved by treating the ionic liquid–rich liquid phase with an aqueous solution of sodium hydroxide (i.e., converting the ionic liquid to the organic base) and extracting the organic base by an appropriate organic solvent (e.g., 1-propanol). The work presented here deals in experimental work with the (liquid + liquid), (solid + liquid) and (solid + liquid + liquid) phase equilibria that are encountered in such extraction processes. Experimental results are reported for temperatures between about 298 K and 333 K: for the solubility of NaCl in several solvents (1-propanol, 1-MIM), (water + 1-MIM), (1-propanol + 1-MIM), (water + 1-propanol), and (water + 1-propanol + 1-MIM) and for the (liquid + liquid) equilibrium as well as for the (solid + liquid + liquid) equilibrium of the ternary system (NaCl + water + 1-propanol) and of the quaternary system (NaCl + water + 1-propanol + 1-MIM).

2012-03-01

313

Cultivo de manjericão em hidroponia e em diferentes substratos sob ambiente protegido Culture of basil in substrata and hydroponic systems under protected environment  

Directory of Open Access Journals (Sweden)

Full Text Available Entre as ervas aromáticas, o manjericão possui importância econômica no Brasil, sendo seu consumo tanto in natura quanto para processamento industrial, na obtenção de óleo essencial. Porém, as informações quanto à qualidade aromática dessas plantas em função das técnicas de cultivo são escassas. Avaliou-se a produtividade de duas espécies de manjericão, de folha estreita (Ocimum minimum L. e de folha larga (Ocimum basilicum L. em ambiente protegido. Os sistemas de cultivo utilizados foram: 1 hidroponia (floating; 2 substrato preparado e 3 substrato comercial. As amostragens foram realizadas durante o período de florescimento das plantas. O experimento foi realizado em Campinas (SP, em casa de vegetação com controle de umidade e iluminação naturais, utilizando-se o delineamento inteiramente casualizado, com três repetições. Foram avaliados também o rendimento e composição química dos óleos essenciais das plantas. O sistema hidropônico apresentou a maior produtividade de massa verde, aproximadamente 44% superior aos outros dois tipos de cultivo, para ambas as espécies estudadas. Não houve diferença significativa entre as formas de cultivo quanto ao rendimento e composição química dos óleos essenciais dentro da mesma espécie. Quanto à produção de óleo essencial, as plantas de manjericão de folha estreita apresentaram rendimento aproximadamente 10% mais elevado em relação às de folha larga, além de diferenças significativas na composição dos óleos essenciais entre as espécies.Among the aromatical herbs, basil is of great economic importance in Brazil. This species is used as fresh herb and also for essential oil extraction. To evaluate the productivity of basil in protected environment, two species, Ocimum minimum L. (narrow leaf basil and Ocimum basilicum L. (wide leaf basil were cultivated under greenhouse conditions, using a hydroponic system and two types of substrata. The experiment was carried out in a completely randomized design with three repetitions. Samples were obtained during the flowering period. The yield and the chemical composition of the essential oils were evaluated. The highest yield of green mass from the two species, was obtained in the hydroponic system, with higher productivity (aprox. 44% than the plants cultivated in prepared commercial substratum. Plants of Ocimum minimum L. produced more essential oil (aprox. 10% than plants of Ocimum basilicum L. Significant differences were found in the chemical composition of essential oil between species. No differences were observed in the chemical composition of essential oil, comparing the three cultivation systems.

Priscila C. Fernandes

2004-06-01

314

Cultivo de manjericão em hidroponia e em diferentes substratos sob ambiente protegido / Culture of basil in substrata and hydroponic systems under protected environment  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Entre as ervas aromáticas, o manjericão possui importância econômica no Brasil, sendo seu consumo tanto in natura quanto para processamento industrial, na obtenção de óleo essencial. Porém, as informações quanto à qualidade aromática dessas plantas em função das técnicas de cultivo são escassas. Ava [...] liou-se a produtividade de duas espécies de manjericão, de folha estreita (Ocimum minimum L.) e de folha larga (Ocimum basilicum L.) em ambiente protegido. Os sistemas de cultivo utilizados foram: 1) hidroponia (floating); 2) substrato preparado e 3) substrato comercial. As amostragens foram realizadas durante o período de florescimento das plantas. O experimento foi realizado em Campinas (SP), em casa de vegetação com controle de umidade e iluminação naturais, utilizando-se o delineamento inteiramente casualizado, com três repetições. Foram avaliados também o rendimento e composição química dos óleos essenciais das plantas. O sistema hidropônico apresentou a maior produtividade de massa verde, aproximadamente 44% superior aos outros dois tipos de cultivo, para ambas as espécies estudadas. Não houve diferença significativa entre as formas de cultivo quanto ao rendimento e composição química dos óleos essenciais dentro da mesma espécie. Quanto à produção de óleo essencial, as plantas de manjericão de folha estreita apresentaram rendimento aproximadamente 10% mais elevado em relação às de folha larga, além de diferenças significativas na composição dos óleos essenciais entre as espécies. Abstract in english Among the aromatical herbs, basil is of great economic importance in Brazil. This species is used as fresh herb and also for essential oil extraction. To evaluate the productivity of basil in protected environment, two species, Ocimum minimum L. (narrow leaf basil) and Ocimum basilicum L. (wide leaf [...] basil) were cultivated under greenhouse conditions, using a hydroponic system and two types of substrata. The experiment was carried out in a completely randomized design with three repetitions. Samples were obtained during the flowering period. The yield and the chemical composition of the essential oils were evaluated. The highest yield of green mass from the two species, was obtained in the hydroponic system, with higher productivity (aprox. 44%) than the plants cultivated in prepared commercial substratum. Plants of Ocimum minimum L. produced more essential oil (aprox. 10%) than plants of Ocimum basilicum L. Significant differences were found in the chemical composition of essential oil between species. No differences were observed in the chemical composition of essential oil, comparing the three cultivation systems.

Priscila C., Fernandes; Roselaine, Facanali; João Paulo F., Teixeira; Pedro R., Furlani; Marcia Ortiz M., Marques.

315

Basil conservation affected by cropping season, harvest time and storage period Armazenamento e conservação de manjericão após diferentes épocas e horários de colheita  

Directory of Open Access Journals (Sweden)

Full Text Available Fresh basil (Ocimum basilicum L. is used in food, phytotherapic industry, and in traditional therapeutic, due to its essential oil content and composition. Nevertheless basil can not be kept for long periods after harvest and its quality can be reduced. This work aimed to assess the influence of the season and harvest time in the postharvest conservation of basil stored for different periods. Basil was harvested at 8 am and 4 pm both in August/1999 and January/2000. Cuttings were conditioned in PVC packages and stored for 3, 6, and 9 days. During storage, chlorophyll content, essential oil content and composition were determined as well as microbiological analyses were carried out. Harvest season and the days of storage influenced the final content of essential oil. There was a linear decrease in the content of essential oil, in the chlorophyll content and in the number of mold and yeast colonies during storage. There was no effect of cropping season or harvest hour on essential oil composition, but the eugenol and linalool content increased during storage. Coliforms were under 0.3 MPN g-1 and the number of Staphylococcus aureus was under 1.0x10² UFC g-1.O manjericão (Ocimum basilicum L. é empregado tanto na indústria culinária quanto fitoterápica e na medicina tradicional, devido ao teor e composição de seu óleo essencial. No entanto, o manjericão não pode ser conservado por longo período após a colheita e sua qualidade pode ser prejudicada. O objetivo deste trabalho foi verificar a influência da época e do horário de colheita sobre a conservação de manjericão armazenado por diferentes períodos. O manjericão foi colhido às 8h e às 16h em agosto/1999 e em janeiro/2000. Os ramos foram acondicionados em filmes de PVC e armazenados por 3, 6 e 9 dias. Durante o armazenamento, o teor de clorofila, e o teor e a composição do óleo essencial foram determinados e foram conduzidas análises microbiológicas. A época de colheita e os dias de armazenamento influenciaram o teor final de óleo essencial. Houve decréscimo linear dos teores de óleo essencial e de clorofila e do número de colônias de fungos e bactérias ao longo do armazenamento. Não houve efeito da época de colheita ou do horário de colheita sobre a composição do óleo essencial, mas os teores de eugenol e linalol aumentaram durante o armazenamento. O número de coliformes ficou abaixo de 0,3 NMP g-1 e o número de Staphylococcus aureus, abaixo de 1,0x10² UFC g-1.

Franceli da Silva

2005-04-01

316

Kinetics of drying of basil leaves (Ocimum basilicum L.) in the infrared Cinética de secagem de folhas de manjericão (Ocimum basilicum L.) via infravermelho  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The objective of this paper was to model the drying curves of the leaves of basil (Ocimum basilicum L.) in the infrared at temperatures of 50, 60, 70 and 80 ºC and to evaluate the influence of drying temperature on the color of dried leaves. Drying was conducted in infrared dryer with temperature and greenhouse air circulation. Experimental data were fitted to eight mathematical models. The magnitude of the coefficient of determination (R²), the mean relative error (P), the estimated mean e...

Dos Reis, Renata C.; Devilla, Ivano A.; Ascheri, Diego P. R.; Servulo, Ana C. O.; Souza, Athina B. M.

2012-01-01

317

Linalool and methyl chavicol present basil (Ocimum sp.) cultivated in Brazil Linalol e metil-chavicol presentes em manjericão (Ocimum sp.) cultivados no Brasil  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In Brazil, Ocimum species are commonly known as aromatic and restorative herbs. The present research aimed to study the chemical composition of the essential oils of fresh and dry basil (Ocimum sp) leaves obtained by hydrodistillation and analyzed by GC-FID and GC-MS. The obtained yield was 0.70% for dry leaves and 0.26% for fresh leaves. The major compounds were: linalool (29.50-32.26%) and methyl chavicol (36.81-41.62%). Eucalyptol could also be detected (9.99-7.68%). The oil from dry leave...

Oliveira, R. A.; Moreira, I. S.; Oliveira, F. F.

2013-01-01

318

Overexpression of the lemon basil alpha-zingiberene synthase gene increases both mono- and sesquiterpene contents in tomato fruit.  

Science.gov (United States)

alpha-Zingiberene synthase (ZIS), a sesquiterpene synthase gene that was isolated from lemon basil (Ocimum basilicum L.), encodes an enzyme that catalyzes the formation of alpha-zingiberene, and other sesquiterpenes, from farnesyl diphosphate. Transgenic tomato fruits overexpressing ZIS under the control of the fruit ripening-specific tomato polygalacturonase promoter (PG) accumulated high levels of alpha-zingiberene (224-1000 ng g(-1) fresh weight) and other sesquiterpenes, such as alpha-bergamotene, 7-epi-sesquithujene, beta-bisabolene and beta-curcumene, whereas no sesquiterpenes were detected in non-transformed control fruits. The ZIS-transgenic fruits also produced monoterpenes, such as alpha-thujene, alpha-pinene, beta-phellandrene and gamma-terpinene (1-22 ng g(-1) fresh weight), which were either not detected or were found only in minute concentrations in control fruits. Recombinant ZIS overexpressed in Escherichia coli catalyzed the formation of these monoterpenes from geranyl diphosphate. As the ZIS protein apparently lacks a transit peptide, and is localized in the cytosol, the production of monoterpenes in the transgenic tomatoes suggests that a pool of geranyl diphosphate is available in the cytosol. The phenotype of the ZIS-transgenic tomatoes was the same as that for wild-type tomatoes, with regard to plant vigor and shape, but transgenic plants exhibited a small decrease in lycopene content. This study thus showed that the synthesis of both mono- and sesquiterpenes can be enhanced by the ectopic expression of a single transgene in tomato fruit, and it further demonstrated the interconnection between the pools of terpenoid precursors in the plastids and the cytosol. PMID:18643974

Davidovich-Rikanati, Rachel; Lewinsohn, Efraim; Bar, Einat; Iijima, Yoko; Pichersky, Eran; Sitrit, Yaron

2008-10-01

319

Retinal vein occlusions: The potential impact of a dysregulation of the retinal veins  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A retinal vein occlusion (RVO) is a sight threatening disease. It can be divided into central vein occlusion and branch retinal vein occlusion. The pathogenesis of the condition remains to be solved. Mechanical compression of the vessel wall or thrombotic occlusion of the vessel lumen, sometimes combined with rheological disorders, are often assumed pathomechanisms. Accordingly, the therapy relies either on mechanical decompression, lyses of thrombi or improvement of rheology. A number of obs...

Fraenkl, Stephan A.; Mozaffarieh, Maneli; Flammer, Josef

2010-01-01

320

Personal authentication using hand vein triangulation  

Science.gov (United States)

This paper presents a new approach to authenticate individuals using triangulation of hand vein images. The proposed method is fully automated and employs palm dorsal hand vein images acquired from the low-cost, near infrared, contactless imaging. The knuckle tips are used as key points for image normalization and the extraction of region of interest. The matching scores are generated in two parallel stages; (i) hierarchical matching score from the four topologies of triangulation in binarized vein structures and (ii) from the geometrical features consisting of knuckle point perimeter distances in the acquired images. The weighted score level combination from these two matching scores are used to authenticate the individuals. The achieved experimental results from the proposed system using contactless, palm dorsal hand vein images are promising and suggest more user friendly alternative for user identification.

Kumar, Ajay; Prathyusha, K. Venkata

2008-03-01

 
 
 
 
321

Personal Authentication System using Hand Vein Biometric  

Directory of Open Access Journals (Sweden)

Full Text Available With an increasing emphasis on security, automated personal identification using hand vein biometric feature is becoming a very active topic in both research and practical applications. The objective of this work is to present a biometric authentication system for high security physical access control based on hand vein pattern. Hand vein biometric is selected, as it is foolproof, offers higher security and reliable for identification.The feature extraction stage consists of removal of the noise inherent using various filtering techniques and extraction of the most discriminating information present in the images using Discrete Wavelet Transform and Adaptive Thresholding techniques. The proposed recognition system makes use of hausdorff distance as matching parameter. The biometric system developed was tested on WASET hand vein image database of Chinese Academy of Sciences Institute of Automation is used and the system is implemented in MATLAB. The proposed approach found to report higher verification accuracy of 99.5%.

G. Sathish

2012-01-01

322

Management of Cosmetically Objectionable Periocular Veins  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Cosmetically objectionable reticular veins in the eyelids may be managed by transection and cautery, extraction with a special phlebectomy hook, laser ablation with the neodymium-doped yttrium aluminum garnet laser, or sclerotherapy using sodium tetradecyl sulfate.

2007-01-01

323

A Survey of Vein Recognition Techniques  

Directory of Open Access Journals (Sweden)

Full Text Available Biometric technology is an efficient personal authentication and identification technique. As one of the main-stream branches, vein recognition has drawn much attention among researchers and diverse users. This study proposes a survey of vein recognition techniques. The basic principle, key techniques, performance evaluation metrics, application fields and future trends are extensively analyzed. In particular, in the key techniques, most previous work is systematically described and compared in three parts, i.e., vein image acquisition and preprocessing, feature extraction and feature matching. According to the available work in theoretical analysis reports in literatures and commercial utilization experiences, vein recognition has been proved to be an effective, secure and reliable choice of high precision among biometrics techniques. It maintains an excellent promise in various applications.

Pei-Wei Tsai

2010-01-01

324

Risk factors of thrombosis in abdominal veins  

Digital Repository Infrastructure Vision for European Research (DRIVER)

AIM: To estimate the prevalence of inherited and acquired thrombophilic risk factors in patients with abdominal venous thrombosis and to compare the risk factor profiles between Budd-Chiari syndromes (BCS) and splanchnic vein thrombosis (SVT).

Dutta, Amit Kumar; Chacko, Ashok; George, Biju; Joseph, Joseph Anjilivelil; Nair, Sukesh Chandran; Mathews, Vikram

2008-01-01

325

Meso-Caval Autogenous Vein Graft Shants.  

Science.gov (United States)

The authors review 14 cases of superior mesenteric vein-inferior vena caval autogenous graft shunting operations for portal hypertension with bleeding esophageal varices due exclusively to late schistosomiasis with splenectomy performed 6-13 years previou...

J. Qingfeng C. Yongyin

1980-01-01

326

Complications of umbilical vein catherisation. Case Report  

International Nuclear Information System (INIS)

Umbilical vein catheterization is a relatively easy procedure performed routinely on the neonate intensive care units. It provides a fast central vein access, but some complications have been described in the literature. Case Reports: We presented a case report of a premature infant (34 hbd) with extravasation of the parenteral nutrition and drugs to the liver after umbilical vein catheterization. Fever and increasing biochemical markers of infection were observed. USG revealed a heterogenic, well-limited space of 4 cm in diameter, located in the right lobe of the liver. CT excluded liver abscess. Considering neoplastic process or incorrect location of the catheter of the central vein, we performed liver biopsy. Results: Cytological and biochemical analysis of the aspirated fluid revealed extravasation of parenteral nutrition to the liver.Our case confirms the necessity of controlling a proper location of the central catheter right after its insertion and during hospitalization. (authors)

2011-01-01

327

Comprehensive international management for left iliac vein compression syndrome complicated with deep vein thrombosis  

International Nuclear Information System (INIS)

Objective: To evaluate comprehensive international management in treating left iliac vein compression syndrome (IVCS) complicated with deep vein thrombosis (DVT). Methods: Transcatheter thrombolysis via jugular catheterization, balloon dilatation angioplasty and/or stent implantation were performed in 28 patients with DVT caused by IVCS. Inferior vena cava filter implantation was carried out before thrombolytic therapy in patients whose thrombosis had extended into the inferior vena cava. Both the clinical data and the therapeutic results were retrospectively analyzed. Results: The diagnosis was confirmed with preoperative ultrasonography and angiography during operation in all 28 patients. Temporary retrievable inferior vena cava filter was implanted in 5 patients. Catheter-directed thrombolysis via jugular vein and percutaneous transcatheter angioplasty with balloon dilatation of the left iliac vein were performed in all patients. Stent implantation in the left iliac vein was employed in six patients. After the treatment the swelling of extremity was markedly reduced or even disappeared. Satisfactory clinical results were obtained during the follow-up period of 3-12 months. Conclusion: For iliac vein compression syndrome complicated by deep vein thrombosis,the combination of inferior vena cava filter implantation, catheter-directed thrombolysis via jugular vein,and balloon dilatation together with stent placement for compressed iliac vein is a safe, miniinvasive and effective therapy. It is well worth popularizing this technique in clinical practice. (authors)

2010-08-01

328

Retro-aortic left renal vein with left suprarenal vein draining into inferior vena cava  

Directory of Open Access Journals (Sweden)

Full Text Available During a routine undergraduate dissection of abdomen of a 50-year-old male cadaver, a variant pattern of left renal and suprarenal veins was encountered. The left renal vein coursed behind the aorta to drain into inferior vena cava at the level of lower pole of left kidney. The left suprarenal vein coursed in front of aorta to drain directly into inferior vena cava instead of left renal vein. A knowledge of such patterns is important for renal surgeons operating for renal transplantation, renal trauma and nephrectomy. Further the ontogenic basis and clinical implications of the anomalies are discussed in the detail.

Singla RK

2010-08-01

329

Isolated inferior mesenteric portal hypertension with giant inferior mesenteric vein and anomalous inferior mesenteric vein insertion.  

Science.gov (United States)

Extrahepatic portal hypertension is not an uncommon disease in childhood, but isolated inferior mesenteric portal varices and lower gastrointestinal (GI) bleed have not been reported till date. A 4-year-old girl presented with lower GI bleed. Surgical exploration revealed extrahepatic portal vein obstruction with giant inferior mesenteric vein and colonic varices. Inferior mesenteric vein was joining the superior mesenteric vein. The child was treated successfully with inferior mesenteric - inferior vena caval anastomosis. The child was relieved of GI bleed during the follow-up. PMID:23798814

Prasad, G Raghavendra; Billa, Srikar; Bhandari, Pavaneel; Hussain, Aijaz

2013-04-01

330

Research progress in non-permanent vein cava filters  

International Nuclear Information System (INIS)

Vein cava filter placement has already become one of the most effective measures for preventing pulmonary embolism which is usually secondary to deep vein thrombosis. With the development of research, non-permanent vein cava filter has been widely used. This paper aims to describe the recent progress in the research of non-permanent vein cava filters. (authors)

2011-05-01

331

Renal vein thrombosis in transitional cell carcinoma  

International Nuclear Information System (INIS)

Full text: A rare case of renal transitional cell carcinoma (TCC) associated with bland thrombus of the renal vein extending into the inferior vena cava is described. Tumour thrombus in renal cell carcinoma is frequently encountered, but only very rarely occurs with TCC. Bland renal vein thrombosis occurring with renal TCC has not been described before. Contrast enhanced computed tomography assisted in distinguishing between bland and tumour thrombosis and aided in surgical management

2007-10-01

332

Endovascular Management of Vein of Galen Malformation  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Vein of Galen aneurysmal malformation (VGAMs) has"nhigh morbidity and mortality rates especially in the"npediatric population. Whereas, in the past, mortality"nrates were nearly 100%, recent developments in"nendovascular embolization have improved the"nprognosis. Vein of Galen malformations have proven"nto be very difficult to treat by standard surgical"nprocedures. However, endovascular embolization can"nprovide significant improvements to this conditi...

Hossein Ghanaati; Mahyar Mohammadifard; Kavous Firouznia; Mohammadreza Abedini

2011-01-01

333

Coronary vein graft disease: Pathogenesis and prevention  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Not long after coronary artery bypass grafting surgery was described, several reports presented follow-up angiographic data on large cohorts of patients, demonstrating that approximately one-half of saphenous vein grafts fail within 10 to 15 years of surgery and that graft failure is associated with worse clinical outcomes. Three processes are responsible for vein graft failure. Thrombosis, intimal hyperplasia and accelerated atherosclerosis contribute to graft failure in the acute, subacute ...

2009-01-01

334

Guide Wire Migration During Femoral Vein Catheterization  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Central vein catheterization is a routine and relatively safe procedure in critically ill patients. Complications with this procedure depend to the site of catheterization and the skill of the operator. In addition to the common complications with femoral vein catheterization there are some rare usually preventable side effects related to guide wire and catheter. In our patient who underwent femoral catheterization for acute hemodialysis, we report migration of guide wire through the systemic...

Mohammad Reza Khatami; Rozita Abbasi; Gelareh Sadigh

2010-01-01

335

Deep vein thrombosis of the leg  

International Nuclear Information System (INIS)

Ascending contrast venography is the definitive standard method for the diagnosis of deep vein thrombosis (DVT) of the lower extremities. Authors analysed 22 cases of DVT clinically and radiographically. 1.The patients ranged in age from 15 to 70 yrs and the most prevalent age group was 7th decade (31%). There was an equal distribution of males and females. 2.In 11 cases of 22 cases, variable etiologic factors were recognized, such as abdominal surgery, chronic bedridden state, local trauma on the leg, pregnancy, postpartum, Behcet's syndrome, iliac artery aneurysm, and chronic medication of estrogen. 3.Nineteen cases out of 22 cases showed primary venographic signs of DVT, such as well-defined filling defect in opacified veins and narrowed, irregularly filled venous lumen. In only 3 cases, the diagnosis of DVT was base upon the segmental nonvisualization of deep veins with good opacification of proximal and distal veins and presence of collaterals. 4.Extent of thrombosis: 3 cases were confined to calf vein, 4 cases extended to femoral vein, and 15 cases had involvement above iliac vein. 5.In 17 cases involving relatively long segment of deep veins, propagation pattern of thrombus was evaluated by its radiologic morphology according to the age of thrombus: 9 cases suggested central or antegrade propagation pattern and 8 cases, peripheral or retrograde pattern. 6.None of 22 cases showed clinical evidence of pulmonary embolism. The cause of the rarity of pulmonary embolism in Korean in presumed to be related to the difference in major involving site and propagation pattern of DVT in the leg

1987-04-01

336

Deep vein thrombosis of the leg  

Energy Technology Data Exchange (ETDEWEB)

Ascending contrast venography is the definitive standard method for the diagnosis of deep vein thrombosis (DVT) of the lower extremities. Authors analysed 22 cases of DVT clinically and radiographically. 1.The patients ranged in age from 15 to 70 yrs and the most prevalent age group was 7th decade (31%). There was an equal distribution of males and females. 2.In 11 cases of 22 cases, variable etiologic factors were recognized, such as abdominal surgery, chronic bedridden state, local trauma on the leg, pregnancy, postpartum, Behcet's syndrome, iliac artery aneurysm, and chronic medication of estrogen. 3.Nineteen cases out of 22 cases showed primary venographic signs of DVT, such as well-defined filling defect in opacified veins and narrowed, irregularly filled venous lumen. In only 3 cases, the diagnosis of DVT was base upon the segmental nonvisualization of deep veins with good opacification of proximal and distal veins and presence of collaterals. 4.Extent of thrombosis: 3 cases were confined to calf vein, 4 cases extended to femoral vein, and 15 cases had involvement above iliac vein. 5.In 17 cases involving relatively long segment of deep veins, propagation pattern of thrombus was evaluated by its radiologic morphology according to the age of thrombus: 9 cases suggested central or antegrade propagation pattern and 8 cases, peripheral or retrograde pattern. 6.None of 22 cases showed clinical evidence of pulmonary embolism. The cause of the rarity of pulmonary embolism in Korean in presumed to be related to the difference in major involving site and propagation pattern of DVT in the leg.

Lee, Eun Hee; Rhee, Kwang Woo; Jeon, Suk Chul; Joo, Kyung Bin; Lee, Seung Ro; Seo, Heung Suk; Hahm, Chang Kok [College of Medicine, Hanyang University, Seoul (Korea, Republic of)

1987-04-15

337

Retrotracheal aberrant left brachiocephalic vein: CT findings  

International Nuclear Information System (INIS)

We present a child with double aberrant left brachiocephalic vein (ALBCV) that was an incidental finding on CT. The anterior and thin branch was above the aortic arch and behind the truncus brachiocephalicus and drained into the superior vena cava (SVC). The posterior and thick branch of the ALBCV coursed posterior to the trachea and oesophagus and joined with the azygos vein before draining into the SVC. To our knowledge, retrotracheal ALBCV has not been previously described. (orig.)

2008-03-01

338

Retrotracheal aberrant left brachiocephalic vein: CT findings  

Energy Technology Data Exchange (ETDEWEB)

We present a child with double aberrant left brachiocephalic vein (ALBCV) that was an incidental finding on CT. The anterior and thin branch was above the aortic arch and behind the truncus brachiocephalicus and drained into the superior vena cava (SVC). The posterior and thick branch of the ALBCV coursed posterior to the trachea and oesophagus and joined with the azygos vein before draining into the SVC. To our knowledge, retrotracheal ALBCV has not been previously described. (orig.)

Yigit, Adalet E.; Haliloglu, Mithat; Karcaaltincaba, Musturay; Ariyurek, Macit O. [Hacettepe University Faculty of Medicine, Department of Radiology, Ankara (Turkey)

2008-03-15

339

Right popliteal vein aneurysm: a case report  

Directory of Open Access Journals (Sweden)

Full Text Available Venous aneurysms are rare. Popliteal venous aneurysm can lead to severe complications such as deep vein thrombosis, pulmonary emboli and death if they remain undiagnosed or untreated. The authors report a case of popliteal vein aneurysm in the right popliteal fossa of a 60-year-old male cadaver. Most venous aneurysms have a congenital origin. An early diagnosis of popliteal venous aneurysm with ultrasound examination is essential prior to the occurrence of any thromboembolic or other major complications.

Sirisinagandla SR

2011-03-01

340

Finger Vein Recognition with Personalized Feature Selection  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Finger veins are a promising biometric pattern for personalized identification in terms of their advantages over existing biometrics. Based on the spatial pyramid representation and the combination of more effective information such as gray, texture and shape, this paper proposes a simple but powerful feature, called Pyramid Histograms of Gray, Texture and Orientation Gradients (PHGTOG). For a finger vein image, PHGTOG can reflect the global spatial layout and local details of gray, texture a...

Xiaoming Xi; Gongping Yang; Yilong Yin; Xianjing Meng

2013-01-01

 
 
 
 
341

Epithelioid hemangioendothelioma encasing the left brachiocephalic vein.  

Science.gov (United States)

Epithelioid hemangioendotheliomas are rare vascular tumors, often arising from medium to large veins in the extremities. Symptoms of these tumors vary depending upon location. Rarely, tumors may arise in chest and involve large vessels in the mediastinum. We present a case of a 17-year-old male presenting with compressive symptoms of the left upper extremity who was found to have a large epithelioid hemangioendothelioma encasing the left brachiocephalic vein. PMID:24898409

Long, Kristin; Skinner, Sean; Martin, Jeremiah

2014-01-01

342

Endovenous Thermal Ablation of the Saphenous Vein  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Endovenous saphenous vein obliteration in the form of radiofrequency or laser therapies has quickly ascended to a position of prime importance in the treatment of reflux within the superficial venous system. The technical aspects of these procedures, as well as their decreased morbidity when compared with saphenous vein stripping, make them highly appealing to both practitioners and patients alike. Less bruising, less pain, and less postoperative recovery are associated with these endovenous ...

2005-01-01

343

Portal Vein Aneurysm Presenting with Obstructive Jaundice  

Digital Repository Infrastructure Vision for European Research (DRIVER)

To the best of our knowledge, a portal vein aneurysm presenting with obstructive jaundice has not been reported in the literature. The preferred treatment for these aneurysms is surgical and a shunting procedure should be considered in cases with portal hypertension to preserve portal vein flow when portal hypertension is present or is secondary to the aneurysm itself. In our case, due to patient's advanced age and co-morbidities, an endoscopic biliary stent was placed which led to successful...

Lall, Chandana; Verma, Sadhna; Gulati, Rajesh; Bhargava, Puneet

2012-01-01

344

Sonographic demonstration of the left ovarian vein  

Energy Technology Data Exchange (ETDEWEB)

Amongst 737 sonographic and CT examinations of women aged 18 to 60 years of age, seven cases of ectasia of the left ovarian vein were found (0.95%). The aetiology and significance of this finding in the context of the 'compression syndrome of the left renal vein' are discussed. The value to sonography in elucidating this condition is stressed. 4 figs.

Toelly, E.; Ebner, F.; Justich, E.

1984-08-01

345

Ulnar nerve transposition using a mini-invasive approach: case series of 30 patients.  

Science.gov (United States)

The treatment of ulnar nerve compression at the elbow remains controversial. No single technique has yet proven its superiority. We describe a technique combining the advantages of the mini-invasive approach with those of transposition. We present the results of 30 patients, of mean age 52 years, who underwent anterior subcutaneous transposition of the ulnar nerve using a mini-invasive approach with a follow-up of more than six months. The incision measures 3 cm. The results were evaluated by measuring pain intensity, quick disabilities of the arm shoulder and hand (DASH), grip strength and pinch, and McGowan score, pre- and post-operatively. All parameters were improved post-operative. The mean pain score went from 5.5 to 4, the quick DASH from 48 to 38, mean grip strength from 28 to 31 kg, and mean pinch strength from 4.7 to 6.4 kg. The McGowan score was also improved; pre-operatively, there were 16 patients at stage III, seven patients stage II, seven patients stage I, and post-operatively there was one patient stage III, three patients stage II, 16 patients stage I, and 10 patients stage 0. Analysis of our series shows that a 3 cm incision without endoscopy allows subcutanous transposition, with results at least as good as those with other techniques. The advantages of our technique are that it is easy, has a limited approach, preserves blood supply, allows placement of the nerve in a favourable environment, and decreases nerve stretching during elbow flexion. PMID:22869908

Lequint, T; Naito, K; Awada, T; Facca, S; Liverneaux, P

2013-06-01

346

Demonstration of IS711 transposition in Brucella ovis and Brucella pinnipedialis  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background The Brucella genome contains an insertion sequence (IS element called IS711 or IS6501, which is specific to the genus. The copy number of IS711 varies in the genome of the different Brucella species, ranging from 7 in B. abortus, B. melitensis and B. suis to more than 30 in B. ovis and in Brucella strains isolated from marine mammals. At present, there is no experimental evidence of transposition of IS711, but the occurrence of this element with a high copy number in some species, and the isolation of Brucella strains with "ectopic" copies of IS711 suggested that this IS could still transpose. Results In this study we obtained evidence of transposition of IS711 from the B. ovis and B. pinnipedialis chromosomes by using the "transposon trap" plasmid pGBG1. This plasmid expresses resistance to tetracycline only if the repressor gene that it contains is inactivated. The strains B. melitensis 16 M, B. abortus RB51, B. ovis BOC22 (field strain and B. pinnipedialis B2/94, all containing the plasmid pGBG1, were grown in culture media with tetracycline until the appearance of tetracycline resistant mutants (TcR. TcR mutants due to IS711 transposition were only detected in B. ovis and B. pinnipedialis strains. Conclusion Four different copies of IS711 were found to transpose to the same target sequence in the plasmid pGBG1. This demonstrated that IS711 are active in vivo, specially in Brucella species with a high number of IS711 copies as B. ovis and B. pinnipedialis.

García-Lobo Juan M

2008-01-01

347

Dental transposition of canine and lateral incisor and impacted central incisor treatment: A case report  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese INTRODUÇÃO: transposição e impacção dentárias são distúrbios relacionados à erupção ectópica ou à falha na erupção dentária, que podem afetar o desenvolvimento físico, psíquico e social da criança, [...] e que podem ser de difícil resolução clínica. MÉTODOS: é descrito um caso clínico de transposição entre o canino e o incisivo lateral superior esquerdo, associado à impacção do incisivo superior, do mesmo lado, em uma paciente de 12 anos de idade. Optou-se pela realização de tratamento ortodôntico-cirúrgico conservador, envolvendo a correção ortodôntica dos dentes transpostos e o tracionamento do incisivo central impactado. CONCLUSÃO: a opção pela correção da transposição e tracionamento ortodôntico com a utilização da técnica do arco segmentado com uso de dispositivos como cantiléver e alças em fios TMA retangulares, apesar de ser uma alternativa de execução complexa, mostrou-se efetiva do ponto de vista estético e funcional. Abstract in english INTRODUCTION: Dental transposition and impaction are disorders related to ectopic eruption or failure in tooth eruption, which can affect child physical, mental and social development and may be difficult to be clinically solved. METHODS: We describe a case of transposition between the upper l [...] eft canine and lateral incisor associated with impaction of the central incisor on the same side, in a 12-year-old patient. Conservative treatment involving surgical-orthodontic correction of transposed teeth and traction of the central incisor was conducted. CONCLUSION: The option of correcting transposition and orthodontic traction by means of the segmented arch technique with devices such as cantilever and TMA rectangular wire loops, although a complex alternative, was proved to be esthetically and functionally effective.

Gebert, Tarcisio Jacinto; Palma, Vinícius Canavarros; Borges, Alvaro Henrique; Volpato, Luiz Evaristo Ricci.

348

TRANS-Net: an Efficient Peer-to-Peer Overlay Network Based on a Full Transposition Graph  

CERN Multimedia

In this paper we propose a new practical P2P system based on a full transposition network topology named TRANS-Net. Full transposition networks achieve higher fault-tolerance and lower congestion among the class of transposition networks. TRANS-Net provides an efficient lookup service i.e. k hops with high probability, where k satisfies Theta(log_n m) less than k less than Theta(log_2 m), where m denotes the number of system nodes and n is a system parameter related to the maximum number that m can take (up to n!). Experiments show that the look-up performance achieves the lower limit of the complexity relation. TRANS-Net also preserves data locality and provides efficient look-up performance for complex queries such as multi-dimensional queries.

Kontopoulos, Stavros

2008-01-01

349

Recent developments of direct rhenium-catalyzed [1,3]-transpositions of allylic alcohols and their silyl ethers.  

Science.gov (United States)

The direct metal-catalyzed [1,3]-transposition of allylic alcohols and allylic silyl ethers is a synthetically useful isomerization process that occurs via [3,3]-sigmatropic rearrangement induced by high oxidation state oxometal complexes. The isomerization requires only a catalytic amount of promoter, and high chirality transfer can be achieved. Thus, it bears a significant potential to become a powerful tool in multistep synthesis. Although [1,3]-transposition of allylic alcohols has been known since the late 1960s, the development of synthetically useful protocols that allow for a high level of regio- and stereoselectivity control and their synthetic applications have emerged only recently. This tutorial review summarizes recently developed regioselective [1,3]-transpositions of allylic alcohols and silyl ethers and their applications to natural product synthesis. PMID:24759893

Volchkov, Ivan; Lee, Daesung

2014-07-01

350

Veins Improve Fracture Toughness of Insect Wings  

Science.gov (United States)

During the lifetime of a flying insect, its wings are subjected to mechanical forces and deformations for millions of cycles. Defects in the micrometre thin membranes or veins may reduce the insect’s flight performance. How do insects prevent crack related material failure in their wings and what role does the characteristic vein pattern play? Fracture toughness is a parameter, which characterises a material’s resistance to crack propagation. Our results show that, compared to other body parts, the hind wing membrane of the migratory locust S. gregaria itself is not exceptionally tough (1.04±0.25 MPa?m). However, the cross veins increase the wing’s toughness by 50% by acting as barriers to crack propagation. Using fracture mechanics, we show that the morphological spacing of most wing veins matches the critical crack length of the material (1132 µm). This finding directly demonstrates how the biomechanical properties and the morphology of locust wings are functionally correlated in locusts, providing a mechanically ‘optimal’ solution with high toughness and low weight. The vein pattern found in insect wings thus might inspire the design of more durable and lightweight artificial ‘venous’ wings for micro-air-vehicles. Using the vein spacing as indicator, our approach might also provide a basis to estimate the wing properties of endangered or extinct insect species.

Dirks, Jan-Henning; Taylor, David

2012-01-01

351

Iliocaval reconstruction in chronic deep vein thrombosis.  

Science.gov (United States)

Chronic occlusion of the iliac veins and the inferior vena cava is a source of significant morbidity to often otherwise healthy patients, but it can be successfully managed with percutaneous recanalization and stenting. In this article, I summarize our current approach to patients with chronic occlusion of the iliac veins: patient selection, timing of intervention, commonly needed equipment, procedure, difficulties encountered, complications, clinical follow-up, and outcomes. An ideal patient is the one who is physically active (or was so before iliocaval occlusion), is at least 6 months past acute iliocaval thrombosis, has a patent common femoral vein and hepatic vein or caval confluence, and has no thrombophilic state. The duration of the occlusion has not affected our technical success of recanalization but may, by predisposing the patient to recurrent deep vein thrombosis, affect long-term patency by degrading the size and number of inflow vessels. Secondary patency rates at 4 years can be as high as 70%-90%. We anticipate that even higher success rates will follow with ongoing evolutions in device design (stents with appropriate diameter, length, radial conformity to conduits of varying diameter, and resistance to compression); better understanding of the biological interaction of the stent, the veins, and the coagulation system; and improved navigation systems to cross longer, occluded segments that are resistant to guidewire passage. PMID:24840966

Williams, David M

2014-06-01

352

Superficial femoral artery transposition repair for isolated superior mesenteric artery dissection.  

Science.gov (United States)

Isolated dissection of the superior mesenteric artery is an uncommon event, but many new cases have been reported recently, reflecting the progress of imaging and suggesting that this pathology is not as rare as previously thought. Here we report a case of superior mesenteric artery dissection where we performed, after failure of conservative medical management, an original surgical technique for mesenteric revascularization using a superficial femoral artery transposition. To the best of our knowledge, this is the first report of the use of this technique for complex mesenteric revascularization. PMID:16242570

Picquet, Jean; Abilez, Oscar; Pénard, Julien; Jousset, Yann; Rousselet, Marie Christine; Enon, Bernard

2005-10-01

353

Frequent transpositions of Drosophila melanogaster HeT-A transposable elements to receding chromosome ends.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

HeT-A elements are a new family of transposable elements in Drosophila that are found exclusively in telomeric regions and in the pericentric heterochromatin. Transposition of these elements onto broken chromosome ends has been implicated in chromosome healing. To monitor the fate of HeT-A elements that had attached to broken ends of the X chromosome, we examined individual X chromosomes from a defined population over a period of 17 generations. The ends of the X chromosomes with new HeT-A ad...

1992-01-01

354

A poorly known case of watershed transposition between the São Francisco and upper Paraná river basins  

Digital Repository Infrastructure Vision for European Research (DRIVER)

During construction of the Furnas hydroelectric power dam in the upper rio Paraná basin in the early 1960s, the rio Piumhi drainage outflow was diverted into the headwaters of the São Francisco river basin. The rio Piumhi was a right bank tributary of the rio Grande, which unites with the rio Paranaíba to form the rio Paraná. The transposition allowed the entire fish fauna of the rio Piumhi and associated swamps, lakes, and tributaries to intermingle with the fish fauna of the São Franci...

Orlando Moreira Filho; Paulo Andreas Buckup

2005-01-01

355

Efficient transposition in mycobacteria: construction of Mycobacterium smegmatis insertional mutant libraries.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The Tn611 transposon was inserted into pCG63, a temperature-sensitive plasmid isolated from an Escherichia coli-mycobacterial shuttle vector which contains the pAL5000 and pUC18 replicons. The resulting plasmid, pCG79, was used to generate a large number of insertional mutations in Mycobacterium smegmatis. These are the first mycobacterial insertional mutant libraries to be constructed by transposition directly into a mycobacterium. No highly preferential insertion sites were detected by Sout...

1994-01-01

356

Mechanical circulatory support of systemic ventricle in adults with transposition of great arteries.  

Science.gov (United States)

We report the successful use of the implantable ventricular assist device HeartWare (HeartWare International Inc., Framingham, MA) to support the systemic circulation in two adult patients with transposition of the great arteries (TGA). One had undergone the Senning procedure as a neonate; the other had congenitally corrected TGA and dextrocardia with palliation in adulthood. It is possible to implant the HeartWare pump into the morphological right ventricle with cannulation of either the diaphragmal surface or the free wall without additional changes in implantation technique and employing off-pump insertion. PMID:22210645

Huebler, Michael; Stepanenko, Alexander; Krabatsch, Thomas; Potapov, Evgenij V; Hetzer, Roland

2012-01-01

357

Revisiting the Baffes operation: its role in transposition of the great arteries.  

Science.gov (United States)

Thomas Baffes developed one of the first operations for transposition of the great arteries directing inferior vena cava flow to the left atrium using an interposed homograft in the era before open heart surgery. He performed 117 Baffes operations from 1953 to 1960, with 30% overall mortality, and an additional 85 Baffes procedures before 1968, allowing many to survive until the atrial baffle operations. During the early days before hospitals had cardiopulmonary bypass machines, Tom Baffes and colleagues purchased a heart-lung machine and transported it to various Chicago hospitals to treat patients and stimulate interest in this emerging technology. PMID:24384201

Mavroudis, Constantine; Backer, Carl L; Siegel, Allison; Gevitz, Melanie

2014-01-01

358

Are the rules for Didactical Transposition applicable to the concepts of modern physics?  

Directory of Open Access Journals (Sweden)

Full Text Available This study is part of a program to update the teaching curriculum. The subject matter of Modern and Contemporary Physics is generally absent in teaching at the Middle School level. In the study we analyse the requirements for the insertion of elements of Quantum Mechanics in teaching at that level. The analysis is based on the theory of “Didactical Transposition" proposed by Yves Chevallard and from which we point out some elements of his rules which are of questionable relevance to the topics of this "new" Physics.

Guilherme Brockington

2005-12-01

359

Comparison of hemihypoglossal-facial nerve transposition with a cross-facial nerve graft and muscle transplant for the rehabilitation of facial paralysis using the facial clima method.  

Science.gov (United States)

To compare quantitatively the results obtained after hemihypoglossal nerve transposition and microvascular gracilis transfer associated with a cross facial nerve graft (CFNG) for reanimation of a paralysed face, 66 patients underwent hemihypoglossal transposition (n = 25) or microvascular gracilis transfer and CFNG (n = 41). The commissural displacement (CD) and commissural contraction velocity (CCV) in the two groups were compared using the system known as Facial clima. There was no inter-group variability between the groups (p > 0.10) in either variable. However, intra-group variability was detected between the affected and healthy side in the transposition group (p = 0.036 and p = 0.017, respectively). The transfer group had greater symmetry in displacement of the commissure (CD) and commissural contraction velocity (CCV) than the transposition group and patients were more satisfied. However, the transposition group had correct symmetry at rest but more asymmetry of CCV and CD when smiling. PMID:22455573

Hontanilla, Bernardo; Vila, Antonio

2012-02-01

360

Serotonin relaxes porcine pial veins.  

Science.gov (United States)

The effect of serotonin [5-hydroxytryptamine (5-HT)] on pial venous tone of the pig was examined using in vitro tissue bath techniques. Isolated pial venous rings exhibited spontaneous rhythmic contractions (SRC) on mechanical stretching and/or applications of several vasoactive substances, including norepinephrine. On the other hand, KCl induced sustained active muscle tone (SAT) without SRC. The SRC induced by mechanical stretching were not affected by tetrodotoxin, nitro-L-arginine, alpha- and beta-adrenergic, histaminergic, and muscarinic receptor antagonists, indicating that the SRC in porcine pial veins are of myogenic origin. The SRC induced by stretching or applications of vasoactive substances and SAT induced by KCl were inhibited by 5-HT in a concentration-dependent manner. The inhibition was prevented by methysergide and methiothepin but not by ketanserin, propranolol, 3 alpha-tropanyl-1H-indole-3-carboxylic acid ester, hemoglobin, or nitro-L-arginine. The SRC and SAT were inhibited by 5-carboxamidotryptamine (5-CT), 8-hydroxy-2-di-N-propylaminotetralin HBr (8-OHDPAT), 1-[3-(trifluoromethyl)phenyl]piperazine (TFMPP), and 5-methoxytryptamine (5-MT), but not by sumatriptan, alpha-methylserotonin, or 2-methylserotonin. On the other hand, 5-CT, 8-OHDPAT, TFMPP, 5-MT, and sumatriptan constricted the porcine pial arteries exclusively. In 15% of pial venous preparations examined, 5-HT at low concentrations induced ketanserin-sensitive constrictions. These results indicate that the porcine pial venous smooth muscle contains multiple subtypes of 5-HT receptors. The 5-HT inhibition of SRC and SAT is predominant and is mediated by 5-HT1-like receptors, which, however, do not seem to correspond to 5-HT1A, 5-HT1B, 5-HT1C, 5-HT1D, 5-HT1E, or 5-HT1F receptor subtypes.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:8160803

Lee, T J; Ueno, M; Sunagane, N; Sun, M H

1994-03-01

 
 
 
 
361

Asymmetry of jugular veins on neck computed tomography  

International Nuclear Information System (INIS)

Authors measured the long and the short diameters of both internal jugular veins on the neck computed tomogram of 70 normal subjects. Asymmetry of the diameter of both internal jugular veins was common. The diameter of the right internal jugular vein was greater than that of the left vein in 43% and vice versa in 14%. The diameter of the jugular veins increased with aging. There was no sex difference

1989-08-01

362

The CT appearance of the superior intercostal veins  

International Nuclear Information System (INIS)

The CT appearance of the superior intercostal veins is described. The veins are more frequently seen on the right side. The right superior intercostal vein should not be misinterpreted as a paraspinal mass when it is large or bulges into the contour of the right lung. A case of stenosis of the left brachiocephalic vein is shown, where the left superior intercostal vein serves as a collateral. (orig.)

1982-01-01

363

The structure and function of giraffe jugular vein valves  

Digital Repository Infrastructure Vision for European Research (DRIVER)

When a giraffe (Giraffa camelopardalis) lowers its head to drink, blood could enter the jugular vein from the inferior vena cava or regurgitate from the jugular veins into the cranial veins. We investigated the anatomy of jugular valves in giraffes to establish if they could prevent either of these regurgitations. Jugular vein length and intervalve distances of 396 valves (192 left, 204 right) were measured in 60 veins from 25 adult (11 males and 14 females) and five foetal giraffes. The aver...

Mitchell, Graham; Sittert, Sybrand J.; Skinner, J. D.

2009-01-01

364

CAUSES OF ADULT SPLANCHNIC VEIN THROMBOSIS IN THE MEDITERRANEAN AREA  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The term splanchnic vein thrombosis encompasses Budd-Chiari syndrome (BCS), extrahepatic portal vein obstruction (EHPVO), and mesenteric vein thrombosis.

Risk factors can be local or systemic. A local precipitating factor is rare in BCS, while it is common in  patients with portal vein thrombosis. Chronic myeloproliferative neoplasms (MPN) are the leading systemic cause of splanchnic vein thrombosis, and are diagnosed in half BCS patients and one-third of EHPVO pa...

2011-01-01

365

Leaf vein segmentation using Odd Gabor filters and morphological operations  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Leaf vein forms the basis of leaf characterization and classification. Different species have different leaf vein patterns. It is seen that leaf vein segmentation will help in maintaining a record of all the leaves according to their specific pattern of veins thus provide an effective way to retrieve and store information regarding various plant species in database as well as provide an effective means to characterize plants on the basis of leaf vein structure which is uniqu...

Katyal, Vini; Aviral

2012-01-01

366

Direct Superficial Temporal Vein Approach for Dural Carotid Cavernous Fistula  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We present an alternative endovascular approach to treat dural carotid cavernous fistulae (dural CCF) that drain only into the superior ophthalmic vein. Four cases of cavernous dural AVFs that could not be treated via the inferior petrosal vein were accessed via the direct superficial temporal vein approach through the superior ophthalmic vein. Successful embolization was documented radiographically and clinically in all patients. The trans-superficial temporal vein approach is safe and usefu...

Matsubara, S.; Kazekawa, K.; Aikawa, H.; Onizuka, M.; Tsutsumi, M.; Ikou, M.; Kodama, T.; Nii, K.; Nagata, S.; Tanaka, A.

2007-01-01

367

Development of advanced pulmonary vascular disease in D-transposition of the great arteries after the neonatal arterial switch operation.  

Science.gov (United States)

We report the case of a neonate with D-transposition of the great arteries who, after undergoing an uneventful arterial switch operation at the age of 4 days, was found at the age of 42 months to have developed advanced pulmonary vascular disease. Because the arterial switch operation was performed when our patient was only 4 days old, this case challenges the hypothesis that postnatal hemodynamics alone dictate the development of advanced pulmonary vascular disease in infants and children with transposition of the great arteries. Images

Rivenes, S M; Grifka, R G; Feltes, T F

1998-01-01

368

Hypoglycemic effect of basil (Ocimum basilicum) aqueous extract is mediated through inhibition of ?-glucosidase and ?-amylase activities: an in vitro study.  

Science.gov (United States)

The present study investigated the in vitro hypoglycemic activity of basil (Ocimum basilicum) aqueous extract. Preliminary phytochemical screening of the extract revealed the presence of reducing sugars, cardiac glycosides, tannins, saponins, glycosides, flavonoids and steroids. The total polyphenols content (TPC), flavonoids content (FC), percentage diphenylpicrylhydrazyl (DPPH( · )) radical inhibition and total antioxidant status (TAS) were estimated. The FC was 41 ± 2.2 rutin/g dry extract, the TPC was 146 ± 5.26 mg catechin/g dry extract and the TAS was 5.12 ± 0.7 mmol/L. The %DPPH( · ) free radical inhibition was 60%, 54%, 49% and 43%, respectively, for different extract concentrations; 20, 18.2, 16.3 and 14.5 mg/ml, respectively. The extract elicited significant dose-dependent pattern against rat intestinal sucrase (RIS; IC(50) = 36.72 mg/ml), rat intestinal maltase (RIM; IC(50) = 21.31 mg/ml) and porcine pancreatic ?-amylase (PPA; IC(50) = 42.50 mg/ml) inhibitory activities. The inhibition was greater against maltase compared with sucrase. These effects may be attributed to the high TPC and FC levels. The linear regression analysis revealed strong significant positive correlations between %DPPH( · ) radical inhibition and each of %RIS, %RIM and %PPA inhibiting activity. Also, strong significant positive correlations between %RIS and either %RIM or %PPA inhibition activity were observed. We concluded therefore that basil aqueous extract via antioxidant and possibly ?-glucosidase and ?-amylase inhibiting activities, offered positive benefits to control diabetes. PMID:21636683

El-Beshbishy, Ha; Bahashwan, Sa

2012-02-01

369

Persistência da veia ciática / Persistent sciatic vein  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese CONTEXTO: Durante um período da vida embrionária, a veia ciática é a principal coletora do membro inferior. Na embriogênese vascular, há diferenciação dos angioblastos em um plexo vascular primitivo, com posterior remodelagem e expansão. Consequentemente, durante esse processo, podem ocorrer anomali [...] as. Quando ocorre persistência da veia ciática, esta pode se comunicar com a veia safena parva ou com a veia poplítea durante seu percurso, anastomosando-se com a veia perfurante superior e com a veia circunflexa medial do fêmur. OBJETIVO: Relatar o caso da persistência bilateral de veia ciática nos membros inferiores, comparando à literatura. MÉTODOS: Foram dissecados 32 membros inferiores de 16 cadáveres formolizados no Laboratório de Anatomia pela Disciplina de Anatomia Topográfica da Faculdade de Medicina da Universidade de Santo Amaro (Unisa), durante 2006 e 2007, observando-se em 2 membros inferiores de um único cadáver, a presença de veia ciática. RESULTADOS: No membro inferior esquerdo de um cadáver que apresentou a anomalia bilateralmente, a veia media 37 cm, tinha origem na região da veia poplítea, acompanhava o nervo ciático, perfurava o músculo adutor magno e desembocava na veia femoral profunda. No membro inferior direito, ela media 36 cm, originava-se recebendo as veias do compartimento tibial anterior, acompanhava o nervo ciático, perfurava o músculo adutor magno e desembocava na veia ilíaca interna. CONCLUSÃO: As variações anatômicas do sistema venoso do membro inferior são as mais prevalentes. A persistência da veia ciática pode causar insuficiência venosa crônica no membro inferior e, dessa forma, deve ser investigada para uma melhor conduta clínica ou cirúrgica. Abstract in english BACKGROUND: During a period of the embryonic life, the sciatic vein is the main lower limb collector. In vascular embryogenesis, there is a differentiation of the angioblasts in a primitive vascular plexus, with posterior remodeling and expansion. Consequently, anomalies may occur during this proces [...] s. When there is persistence of the sciatic vein, it may communicate with the small saphenous vein or with the popliteal vein during its route, being anastomosed to the superior perforating vein and to the medial circumflex femoral vein. OBJECTIVE: To report a case of bilateral persistent sciatic vein on the lower limbs in comparison to the literature. METHODS: Thirty-two lower limbs from 16 corpses preserved in formaldehyde were dissected at the Laboratory of Anatomy of the discipline of Topographic Anatomy of the Medical School of Universidade Santo Amaro (Unisa), during 2006 and 2007, and the sciatic vein was observed in 2 lower limbs of one single corpse. RESULTS: On the left lower limb of a corpse that presented bilateral anomaly, the vein had 37 cm, emerging on the popliteal vein, accompanying the sciatic nerve, perforating the long adductor muscle and leading into the deep femoral vein. On the right lower limb, it measured 36 cm, emerged receiving the veins of the anterior tibial compartment, accompanied the sciatic nerve, perforated the long adductor muscle and led into the internal iliac vein. CONCLUSION: The anatomical variations of the lower limb venous system are the most common ones. The persistent sciatic vein may cause chronic venous failure in the lower limbs and, in this manner, must be investigated aiming at a better clinical or surgical management.

Bárbara Borges, Cardoso; Camila Oliveira, Alvarenga; Maíra de Souza, Miyahara; Marcelo Calil, Burihan; Maria Raphaella Queiroz Alves de, Lima; Mariana Cardoso, Kuwahara; Rafael Capobianco Maia e, Silva.

370

Human umbilical veins and autogenous veins as canine arterial bypass grafts.  

Science.gov (United States)

Glutaraldehyde treated human umbilical veins (Dardik Biograft) were used to bypass short segments of the femoral artery in 15 dogs and were compared to autogenous jugular veins placed in the contralateral femoral artery of each animal. All 15 autogenous jugular veins remained patent for the four month period of observation whereas thrombosis occurred in seven of 15 umbilical vein grafts. This patency rate of 53% was significantly lower than that observed for autogenous jugular veins (p less than 0.01). Neointimal Fibrous Hyperplasia (NFH) a the proximal anastomosis was responsible for six of the seven umbilical vein graft occlusions. Of the eight patent umbilical veins, five had varying degrees of proximal anastomotic stenosis secondary to NFH. Histological examination of each graft revealed significant fibroblastic proliferation and collagen deposition within the lumen of stenosed and thrombosed grafts. Although human umbilical veins have distinct advantages over other prosthetics, such as availability and flexibility, the incidence of experimental neointimal fibrous hyperplasia causing anastomotic stenosis and thrombosis is prohibitively high. PMID:686880

Oblath, R W; Buckley, F O; Donnelly, W A; Green, R M; Deweese, J A

1978-08-01

371

Umbilical vein draining into the inferior vena cava via the internal iliac vein, bypassing the liver  

Energy Technology Data Exchange (ETDEWEB)

This is the third report of an anomalous umbilical vein draining ectopically in a left pelvic vein, probably the left internal iliac, and through the inferior vena cava into the right atrium. The anomaly was encountered in a newborn infant with nonimmune hydrops fetalis, hypertrophic cardiomyopathy, multiorgan failure and possibly Noonan Syndrome. (orig.).

Currarino, G.; Stannard, M.W. (Children' s Medical Center, Dallas, TX (United States). Dept. of Radiology Texas Univ., Dallas, TX (United States). Southwestern Medical Center); Kolni, H. (Methodist Hospital, Dallas, TX (United States). Dept. of Pediatrics)

1991-05-01

372

Umbilical vein draining into the inferior vena cava via the internal iliac vein, bypassing the liver  

International Nuclear Information System (INIS)

This is the third report of an anomalous umbilical vein draining ectopically in a left pelvic vein, probably the left internal iliac, and through the inferior vena cava into the right atrium. The anomaly was encountered in a newborn infant with nonimmune hydrops fetalis, hypertrophic cardiomyopathy, multiorgan failure and possibly Noonan Syndrome. (orig.)

1991-01-01

373

Estudo anatômico da veia braquial comum como via de drenagem colateral do membro superior / Anatomic study of the common brachial vein as a collateral drainage channel of the upper limb  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese CONTEXTO: Traumatismos ou tromboses que possam evoluir com alterações da drenagem venosa do membro superior, dependendo do território interrompido, podem ter como mecanismo compensatório uma via colateral de drenagem sem que haja prejuízo para o retorno venoso desse membro. A veia braquial comum apr [...] esenta-se como uma alternativa plausível e pouco conhecida. OBJETIVO: Descrever a anatomia da veia braquial comum como via de drenagem colateral no membro superior. MÉTODOS: Utilizamos 30 cadáveres do sexo masculino, cujos membros superiores estavam articulados ao tronco, não importando a raça, formolizados e mantidos em conservação com solução de formol a 10%. Utilizamos como critérios de exclusão cadáveres com um dos membros desarticulado ou alterações deformantes em topografia das estruturas estudadas. RESULTADOS: A veia braquial comum esteve presente em 73% (22/30) dos cadáveres estudados, sendo que em 18% (04/22) dos casos drenou para a veia basílica no seguimento proximal do braço e em 82% (18/22), para a veia axilar. CONCLUSÃO: A veia braquial comum está frequentemente presente e, na maior parte das vezes, desemboca na veia axilar. Abstract in english BACKGROUND: Trauma and thrombosis that can result in changes in the venous drainage of the upper limb, depending on the vascular territory interrupted, may have as a compensatory mechanism a collateral drainage channel that prevents damage to the venous return of that limb. The common brachial vein [...] is a plausible and little known collateral channel for this purpose. OBJECTIVE: To describe the anatomy of the common brachial vein as a collateral drainage channel of the upper limb. METHODS: We have dissected 30 cadavers of people of different races, whose upper limbs were articulated to the trunk and preserved in a 10% formaldehyde solution. The exclusion criteria were disarticulated limbs or deformities in the topography of the studied structures. RESULTS: The common brachial vein was present in 73% (22/30) of the cadavers dissected. The common brachial vein drained into the axillary vein in 82% (18/22) and into the basilic vein in the proximal segment of the upper limb in 18% of the cadavers (04/22). CONCLUSION: The common brachial vein is frequently present, and, in most cases, it drains into the axillary vein.

Carlos Adriano Silva dos, Santos; Luiz Francisco Poli de, Figueiredo; Luiz Carlos Buarque de, Gusmão; Aldemar Araújo, Castro; Guilherme Benjamin Brandão, Pitta; Fausto, Miranda Jr; Érica Carla Figueirêdo de, Souza.

374

A poorly known case of watershed transposition between the São Francisco and upper Paraná river basins  

Directory of Open Access Journals (Sweden)

Full Text Available During construction of the Furnas hydroelectric power dam in the upper rio Paraná basin in the early 1960s, the rio Piumhi drainage outflow was diverted into the headwaters of the São Francisco river basin. The rio Piumhi was a right bank tributary of the rio Grande, which unites with the rio Paranaíba to form the rio Paraná. The transposition allowed the entire fish fauna of the rio Piumhi and associated swamps, lakes, and tributaries to intermingle with the fish fauna of the São Francisco basin via the ribeirão Sujo, a right bank tributary of the São Francisco. The transposition of the watershed may have had a major impact on the current composition of the fish fauna of the upper rio São Francisco watershed.Durante a construção do reservatório hidroelétrico de Furnas na bacia do alto rio Paraná no início da década de 1960, o fluxo de águas do rio Piumhi foi desviado para as cabeceiras da bacia do rio São Francisco. O rio Piumhi era um tributário da margem direita do rio Grande, o qual se une com rio Paranaíba para formar o rio Paraná. A transposição permitiu que toda a fauna de peixes do rio Piumhi e banhados, lagos e tributários associados se mesclasse com a fauna de peixes da bacia do rio São Francisco através do ribeirão Sujo, um tributário da margem direita do São Francisco. A transposição da bacia pode ter ocasionado grande impacto na atual composição da fauna de peixes da bacia do alto rio São Francisco.

Orlando Moreira Filho

2005-09-01

375

New classes of n-copy undistillable quantum states with negative partial transposition  

CERN Multimedia

The discovery of entangled quantum states from which one cannot distill pure entanglement constitutes a fundamental recent advance in the field of quantum information. Such bipartite bound-entangled (BE) quantum states \\emph{could} fall into two distinct categories: (1) Inseparable states with positive partial transposition (PPT), and (2) States with negative partial transposition (NPT). While the existence of PPT BE states has been confirmed, \\emph{only one} class of \\emph{conjectured} NPT BE states has been discovered so far. We provide explicit constructions of a variety of multi-copy undistillable NPT states, and conjecture that they constitute families of NPT BE states. For example, we show that for every pure state of Schmidt rank greater than or equal to three, one can construct n-copy undistillable NPT states, for any $n\\geq1$. The abundance of such conjectured NPT BE states, we believe, considerably strengthens the notion that being NPT is only a necessary condition for a state to be distillable.

Bandyopadhyay, S; Bandyopadhyay, Somshubhro; Roychowdhury, Vwani

2003-01-01

376

Transposition anti-involution in Clifford algebras and invariance groups of scalar products on spinor spaces  

CERN Document Server

We introduce on the abstract level in real Clifford algebras \\cl_{p,q} of a non-degenerate quadratic space (V,Q), where Q has signature \\epsilon=(p,q), a transposition anti-involution \\tp. In a spinor representation, the anti-involution \\tp gives transposition, complex Hermitian conjugation or quaternionic Hermitian conjugation when the spinor space \\check{S} is viewed as a \\cl_{p,q}-left and \\check{K}-right module with \\check{K} isomorphic to R or R^2, C, or, H or H^2. \\tp is a lifting to \\cl_{p,q} of an orthogonal involution \\tve: V \\rightarrow V which depends on the signature of Q. The involution is a symmetric correlatio \\tve: V \\rightarrow V^{*} \\cong V and it allows one to define a reciprocal basis for the dual space (V^{*},Q). The anti-involution \\tp acts as reversion on \\cl_{p,0} and as conjugation on \\cl_{0,q}. Using the concept of a transpose of a linear mapping one can show that if [L_u] is a matrix in the left regular representation of the operator L_u: \\cl_{p,q} \\rightarrow \\cl_{p,q} relative to ...

Ablamowicz, Rafal

2011-01-01

377

A New Multimodal Biometric System Based on Finger Vein and Hand Vein Recognition  

Directory of Open Access Journals (Sweden)

Full Text Available As a reliable and robust biological characteristic, the vein pattern increases more and more the progress in biometric researches. Generally, it was shown that single biometric modality recognition is not able to meet high performances. In this paper, we propose a new multimodal biometric system based on fusion of both hand vein and finger vein modalities. For finger vein recognition, we employ the Monogenic Local Binary Pattern (MLBP, and for hand vein recognitionan Improved Gaussian Matched Filter (IGMF. Experimental results confirm that the proposed multimodal biometric process achieves excellent recognition performance compared to unimodal biometric system. The Area Under Curve (AUC of the proposed approach is very close to unity (0.98.

Randa Boukhris Trabelsi

2013-08-01

378

Caracterização morfológica e agronômica de acessos de manjericão e alfavaca Morphologic and agronomic characterization of basil accessions  

Directory of Open Access Journals (Sweden)

Full Text Available O manjericão (Ocimum basilicum L. pode ser considerado cultura anual ou perene, conforme o local de cultivo. Existem diversas finalidades para seu uso na culinária, como planta ornamental, medicinal e aromática, sendo o seu oleo essencial valorizado no mercado internacional pelo teor de linalol. Caracterizou-se morfológica e agronômicamente, acessos de Ocimum sp. visando a seleção de genótipos com alto rendimento de óleo essencial rico em linalol. O delineamento experimental foi de blocos casualizados, com duas repetições, avaliando 55 genótipos do Banco de Germoplasma de Ocimum da UFS. Avaliou-se a altura de plantas, peso da matéria seca da parte aérea, teor e rendimento de óleo essencial. Observou-se grande diversidade entre os genótipos para todas as variáveis morfológicas e agronômicas avaliadas. Houve grande amplitude entre os genótipos quanto ao teor de óleo essencial, variando de 0,202 a 2,536 ml/100g e para o rendimento de óleo essencial, variando de 1,103 a 21,817 l/ha. Avaliando as variáveis teor e rendimento de óleo essencial de O. basilicum pode-se selecionar os genótipos NSL6421, PI197442, PI358464, PI414194, PI531396 e 'Fino Verde' para o programa de melhoramento genético que visa a obtenção de novas cultivares de manjericão com alto rendimento de óleo essencial rico em linalol.The sweet basil (Ocimum basilicum L., can be an annual or a perennial plant depending on the place where it is grown. This plant has several culinary, ornamental, medicinal and aromatic uses. The value of its essential oil in the international market depends on the percentage of linalool. We characterized the morphologic and agronomic qualities of the Ocimum accessions, to select genotypes with higher yield of essential oil rich in linalool. Experiment design consisted of randomized blocks with two replications, evaluating 55 genotypes of the Germplasm Bank of Ocimum from the Universidade Federal do Sergipe, Brazil. The plant height, dry matter of the aerial plant parts, essential oil content and yield were evaluated. A wide diversity among the genotypes was observed for all morphological and agronomical traits evaluated. A large amplitude occurred among genotypes regarding the content of essential oil from 0,202 to 2,536 ml/100g. For the essential oil yield an amplitude from 1,103 to 21,817 l/ha was observed. Evaluating the traits content and yield of O. basilicum essential oil the genotypes NSL6421, PI197442, PI358464, PI414194, PI531396 and 'Fino Verde' can be selected for breeding programs to obtain cultivars with a high yield of essential oil rich in linalool.

Arie F. Blank

2004-03-01

379

Endovascular Radiofrequency Ablation for Varicose Veins  

Science.gov (United States)

Executive Summary Objective The objective of the MAS evidence review was to conduct a systematic review of the available evidence on the safety, effectiveness, durability and cost–effectiveness of endovascular radiofrequency ablation (RFA) for the treatment of primary symptomatic varicose veins. Background The Ontario Health Technology Advisory Committee (OHTAC) met on August 26th, 2010 to review the safety, effectiveness, durability, and cost-effectiveness of RFA for the treatment of primary symptomatic varicose veins based on an evidence-based review by the Medical Advisory Secretariat (MAS). Clinical Condition Varicose veins (VV) are tortuous, twisted, or elongated veins. This can be due to existing (inherited) valve dysfunction or decreased vein elasticity (primary venous reflux) or valve damage from prior thrombotic events (secondary venous reflux). The end result is pooling of blood in the veins, increased venous pressure and subsequent vein enlargement. As a result of high venous pressure, branch vessels balloon out leading to varicosities (varicose veins). Symptoms typically affect the lower extremities and include (but are not limited to): aching, swelling, throbbing, night cramps, restless legs, leg fatigue, itching and burning. Left untreated, venous reflux tends to be progressive, often leading to chronic venous insufficiency (CVI). A number of complications are associated with untreated venous reflux: including superficial thrombophlebitis as well as variceal rupture and haemorrhage. CVI often results in chronic skin changes referred to as stasis dermatitis. Stasis dermatitis is comprised of a spectrum of cutaneous abnormalities including edema, hyperpigmentation, eczema, lipodermatosclerosis and stasis ulceration. Ulceration represents the disease end point for severe CVI. CVI is associated with a reduced quality of life particularly in relation to pain, physical function and mobility. In severe cases, VV with ulcers, QOL has been rated to be as bad or worse as other chronic diseases such as back pain and arthritis. Lower limb VV is a very common disease affecting adults – estimated to be the 7th most common reason for physician referral in the US. There is a very strong familial predisposition to VV. The risk in offspring is 90% if both parents affected, 20% when neither affected and 45% (25% boys, 62% girls) if one parent affected. The prevalence of VV worldwide ranges from 5% to 15% among men and 3% to 29% among women varying by the age, gender and ethnicity of the study population, survey methods and disease definition and measurement. The annual incidence of VV estimated from the Framingham Study was reported to be 2.6% among women and 1.9% among men and did not vary within the age range (40-89 years) studied. Approximately 1% of the adult population has a stasis ulcer of venous origin at any one time with 4% at risk. The majority of leg ulcer patients are elderly with simple superficial vein reflux. Stasis ulcers are often lengthy medical problems and can last for several years and, despite effective compression therapy and multilayer bandaging are associated with high recurrence rates. Recent trials involving surgical treatment of superficial vein reflux have resulted in healing and significantly reduced recurrence rates. Endovascular Radiofrequency Ablation for Varicose Veins RFA is an image-guided minimally invasive treatment alternative to surgical stripping of superficial venous reflux. RFA does not require an operating room or general anaesthesia and has been performed in an outpatient setting by a variety of medical specialties including surgeons and interventional radiologists. Rather than surgically removing the vein, RFA works by destroying or ablating the refluxing vein segment using thermal energy delivered through a radiofrequency catheter. Prior to performing RFA, color-flow Doppler ultrasonography is used to confirm and map all areas of venous reflux to devise a safe and effective treatment plan. The RFA procedure involves the introduction of a guide wire into the target v

2011-01-01

380

Animal Model of Acute Deep Vein Thrombosis  

International Nuclear Information System (INIS)

Purpose: To develop an animal model of acute deep vein thrombosis (DVT). Methods: In part I of the study nine juvenile domestic pigs were used. Each external iliac vein was transluminally occluded with a balloon catheter. Thrombin was infused through a microcatheter in one leg according to one of the following protocols: (1) intraarterial (IA): 1250 U at 25 U/min in the common femoral artery (n= 3); (2) intravenous (IV): 5000 U in the popliteal vein at 500 U/min (n= 3), or at 100 U/min (n= 3). Saline was administered in the opposite leg. After the animals were killed, the mass of thrombus in the iliofemoral veins was measured. The pudendoepiploic (PEV), profunda femoris (PF), and popliteal veins (PV) were examined. Thrombosis in the tributaries of the superficial femoral vein (SFVt) was graded according to a three-point scale (0, +, ++). In part II of the study IV administration was further investigated in nine pigs using the following three regimens with 1000 U at 25 U/min serving as the control: (1) 1000 U at 100 U/min, (2) 250 U at 25 U/min, (3) 250 U at 6.25 U/min. Results: All animals survived. In part I median thrombus mass in the test limbs was 1.40 g as compared with 0.25 g in the controls (p= 0.01). PEV, PFV and PV were thrombosed in all limbs infused with thrombin. IV infusion was more effective in inducing thrombosis in both the parent veins (mass 1.32-1.78 g) and SVFt (++ in 4 of 6 legs), as compared with IA infusion (mass 0.0-1.16 g; SFVt ++ in 1 of 3 legs). In part II thrombus mass in axial veins ranged from 1.23 to 2.86 g, and showed no relationship with the dose of thrombin or the rate of infusion. Tributary thrombosis was less extensive with 250 U at 25 U/min than with the other regimens. Conclusion: Slow distal intravenous thrombin infusion in the hind legs of pigs combined with proximal venous occlusion induces thrombosis in the leg veins that closely resembles clinical DVT in distribution

1998-07-01

 
 
 
 
381

Sonographic features of portal vein thrombosis  

Energy Technology Data Exchange (ETDEWEB)

57 Cases of Portal vein thrombosis detected by ultrasonography were analyzed. The results were as follows: 1. Most common cause was hepatocellular carcinoma, showing 49 out of 57 cases (86%). 2. Sonographic findings revealed echogenic thrombus in the dilated portal vein. Echogenecity of thrombus was similar to the surrounding liver parenchyma. Thrombus was mainly located in the intrahepatic branch and main portal vein. 3. The location of thrombus in hepatocellular carcinoma was related to the location of rumor, and frequently extended to the main portal vein (68.9%). Incidence of thrombosis in hepatocellular carcinoma revealed 49 out of 157 cases, but prospective study showed 42 out of 84 cases (50%). Thrombosis was more common in large sized ill-defined diffuse infiltrative hepatocellular carcinoma. 4. Computed tomography (only 15 cases analyzed) findings revealed low density in the portal vein in all the cases and periportal enhancement in 10 cases on post-enhanced scan. 5. Collateral circulations were largely detected at the porta hepatic and gallbladder fossa. The detection rate was lower on the ultrasonography than on the computed tomography or angiography.

Bae, Man Gil; Sohn, Hyoung Kuk; Koh, Byung Hee; Cho, On Koo; Hahm, Chang Kok [Hanyang University College of Medicine, Seoul (Korea, Republic of)

1986-06-15

382

Double Aortic Arch in D-Transposition of the Great Arteries: Confirmation of Dominant Arch by Magnetic Resonance Imaging  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We report the case of a female infant who had the rare combination of double aortic arch and D-transposition of the great arteries. The double aortic arch was diagnosed at the time of her arterial switch procedure. Magnetic resonance imaging identified the left arch as dominant, and the right arch was successfully ligated.

Mcmahon, Colin J.; Bezold, Louis I.; Vick, Giles W.

2000-01-01

383

Diagnosis of a congenitally corrected transposition of the great arteries in a 50-year-old multiparous woman.  

Science.gov (United States)

Congenitally corrected transposition of the great arteries (cc-TGA) is a rare congenital heart disease. In the literature, few patients with this anomaly have been reported to be asymptomatic until after the fifth decade. We describe a 50-year-old female with five pregnancies and successful deliveries, who was unrecognised until late in her fifth decade. PMID:21881687

Jalalian, R; Masoumi, S; Ghaemian, A

2011-01-01

384

Anesthetic management of parturients with congenitally corrected transposition of the great arteries: three cases and a review of the literature.  

Science.gov (United States)

Women with congenitally corrected transposition of the great arteries (CCTGA) have a propensity for congestive heart failure and cardiac dysrhythmias during pregnancy, labor, and delivery. We report the successful obstetric and anesthetic management of three women with CCTGA, review the pertinent medical literature, and discuss important issues surrounding the anesthetic management of parturients with CCTGA. PMID:19020147

Arendt, Katherine W; Connolly, Heidi M; Warnes, Carole A; Watson, William J; Hebl, James R; Craigo, Paula A

2008-12-01

385

Late arrhythmia in adults with the Mustard procedure for transposition of great arteries: a surrogate marker for right ventricular dysfunction?  

Digital Repository Infrastructure Vision for European Research (DRIVER)

OBJECTIVE—To examine the relation between ventricular dysfunction and late clinical arrhythmia in adults who underwent the Mustard procedure for transposition of the great arteries.?DESIGN—Observational study based on periodic outpatient assessment of biventricular function.?SETTING—Tertiary referral centre.?INTERVENTIONS—Analysis of data from 12 lead ECGs, echocardiography, exercise radionuclide ventriculography, and magnetic resonance imaging.?MAIN OUTCOME M...

Gatzoulis, M.; Walters, J.; Mclaughlin, P.; Merchant, N.; Webb, G.; Liu, P.

2000-01-01

386

[Effect of heat shock on transpositions of Mobile Genetic Element Dm412 in three isogenetic lines of Drosophila melanogaster].  

Science.gov (United States)

Induction of Dm412 transpositions by heavy heat shock was studied in several isogenic lines of Drosophila melanogaster. The probabilities of spontaneous and induced transpositions were estimated. Their respective values were less than < 3.0 x 10(-3) and 3.8 x 10(-2) per site per genome per generation in line 51, and less than < 3.6 x 10(-3) and 2.6 x 10(-2) in line 66. These estimates are close to those obtained earlier for Dm412 (less than < 3.3 x 10(-4) and 7.2 x 10(-2) and for B104, line 49 (less than < 1.7 x 10(-3) and 8.1 x 10(-2)). Thus, transposition induction of copia-like mobile genetic elements by heavy heat shock is a general phenomenon common for various isogenic lines of Drosophila. Other properties of Dm412 and B104 transpositions, such as the presence of "hot" and "cold" sites, HSI haplotypes etc., are also similar. PMID:8045383

Anikeeva, N V; Zabanov, S A; Vasil'eva, L A; Ratner, V A

1994-02-01

387

A 5-methylcytosine DNA glycosylase/lyase demethylates the retrotransposon Tos17 and promotes its transposition in rice.  

Science.gov (United States)

DNA 5-methylcytosine (5-meC) is an important epigenetic mark for transcriptional gene silencing in many eukaryotes. In Arabidopsis, 5-meC DNA glycosylase/lyases actively remove 5-meC to counteract transcriptional gene silencing in a locus-specific manner, and have been suggested to maintain the expression of transposons. However, it is unclear whether plant DNA demethylases can promote the transposition of transposons. Here we report the functional characterization of the DNA glycosylase/lyase DNG701 in rice. DNG701 encodes a large (1,812 amino acid residues) DNA glycosylase domain protein. Recombinant DNG701 protein showed 5-meC DNA glycosylase and lyase activities in vitro. Knockout or knockdown of DNG701 in rice plants led to DNA hypermethylation and reduced expression of the retrotransposon Tos17. Tos17 showed less transposition in calli derived from dng701 knockout mutant seeds compared with that in wild-type calli. Overexpression of DNG701 in both rice calli and transgenic plants substantially reduced DNA methylation levels of Tos17 and enhanced its expression. The overexpression also led to more frequent transposition of Tos17 in calli. Our results demonstrate that rice DNG701 is a 5-meC DNA glycosylase/lyase responsible for the demethylation of Tos17 and this DNA demethylase plays a critical role in promoting Tos17 transposition in rice calli. PMID:21896764

La, Honggui; Ding, Bo; Mishra, Gyan P; Zhou, Bo; Yang, Hongmei; Bellizzi, Maria del Rosario; Chen, Songbiao; Meyers, Blake C; Peng, Zhaohua; Zhu, Jian-Kang; Wang, Guo-Liang

2011-09-13

388

Isolated Cortical Vein Thrombosis - The Cord Sign  

Directory of Open Access Journals (Sweden)

Full Text Available

Isolated cortical vein thrombosis is an uncommon condition and often difficult to diagnose, both clinically and radiologically. We report a case of a 38 years old man who presented with headache of new onset and clinical examination was unremarkable.  The unenhanced brain CT did not reveal any abnormality. In view of unrelenting headache and partial seizures, we performed magnetic resonance imaging (with  axial T1, T2 and gradient echo sequences, coronal FLAIR, diffusion weighted imaging as well as Gadolinium contrast-enhanced images and magnetic resonance venography of the brain that revealed an isolated parietal cortical vein thrombosis with the rarely reported 'cord sign'. We report the clinical and radiological findings in our patient with isolated parietal cortical vein thrombosis.

Vijay K Sharma

2009-03-01

389

Phasic activity of human dorsal foot veins.  

Science.gov (United States)

Phasic contractions of the dorsal foot veins were detected in 7 male subjects, aged 23 to 49 years, by means of a linear variable differential transformer (LVDT) after congesting the veins by a pressure of 6.7 kPa (50 torr). This phasic activity (PA) had a frequency of 3 to 7 contractions per minute and led to a periodic diminution of the diameter of the distended veins by 12 to 44%. Using a double LVDT, the PA was shown to represent peristaltic waves travelling along the vessel wall concomitantly with the venous return. Determined in 3 out of the 7 subjects, the velocity of the waves amounted to 3.6 to 6.1 mm per second. A rheological significance of the peristaltic waves is assumed. PMID:3178793

Barthel, W; Koth, W

1988-01-01

390

Number of valves in superficial veins of the leg.  

Science.gov (United States)

Study was performed on 83 great and 64 small saphenous veins obtained from human adults males and females, aged 26 to 85 years. The number of valves in the great saphenous veins varies from 3 to l3, and in the small saphenous veins the number of valves varies from 1 to 8. The mean number of valves in the femoral part of the great saphenous veins is 5 and in the crural part of this vein is 3. The number of valves is not related to the length of vein. PMID:14663766

M, C G; M, B

1999-01-01

391

Robust Palm Vein Recognition Using LMKNCN Classification  

Directory of Open Access Journals (Sweden)

Full Text Available This paper presents a novel approach to improve the recognition percentage of palm-vascular-based authentication systems presented in the literature. The proposed method efficiently accommodates the rotational, translational changes and potential deformations by encoding the orientation preserving features. The proposed palm-vein approach is compared with other existing methods and obtained an improved performance in both verification and recognition scenarios. The experimental results obtained in this work based on PolyU and CASIA Vein databases conforms the superiority of the proposed method in both the recognition and verification.

M. Senthil Kumar,

2014-01-01

392

Surgery of diseases of the veins  

International Nuclear Information System (INIS)

The article describes the present state of surgery of the v. cava inferior, of the veins of the pelvis and legs in acute phlebothrombosis, post-thrombotic syndrome, traumatic lesions, congenital malformations and in tumour surgery. Every surgical performance concerned with the venous system must be diagnostically clarified by phlebography. The veins of the thigh and pelvis are well visualized by means of ascending phlebography. Closely meshed functional testing by means of phlebography control, as well as venous pressure measurements and peripheral phlebodynamometry are required for timely recognition of an early relapse and for assessing the results of surgery. (orig.)

1982-01-01

393

Image Quality Enhancement Using the Direction and Thickness of Vein Lines for Finger-Vein Recognition  

Directory of Open Access Journals (Sweden)

Full Text Available On the basis of the increased emphasis placed on the protection of privacy, biometric recognition systems using physical or behavioural characteristics such as fingerprints, facial characteristics, iris and finger?vein patterns or the voice have been introduced in applications including door access control, personal certification, Internet banking and ATM machines. Among these, finger?vein recognition is advantageous in that it involves the use of inexpensive and small devices that are difficult to counterfeit. In general, finger?vein recognition systems capture images by using near infrared (NIR illumination in conjunction with a camera. However, such systems can face operational difficulties, since the scattering of light from the skin can make capturing a clear image difficult. To solve this problem, we proposed new image quality enhancement method that measures the direction and thickness of vein lines. This effort represents novel research in four respects. First, since vein lines are detected in input images based on eight directional profiles of a grey image instead of binarized images, the detection error owing to the non? uniform illumination of the finger area can be reduced. Second, our method adaptively determines a Gabor filter for the optimal direction and width on the basis of the estimated direction and thickness of a detected vein line. Third, by applying this optimized Gabor filter, a clear vein image can be obtained. Finally, the further processing of the morphological operation is applied in the Gabor filtered image and the resulting image is combined with the original one, through which finger? vein image of a higher quality is obtained. Experimental results from application of our proposed image enhancement method show that the equal error rate (EER of finger?vein recognition decreases to approximately 0.4% in the case of a local binary pattern? based recognition and to approximately 0.3% in the case of a wavelet transform?based recognition.

Young Ho Park

2012-10-01

394

Oversized vein grafts develop advanced atherosclerosis in hypercholesterolemic minipigs  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Accelerated atherosclerosis is the main cause of late aortocoronary vein graft failure. We aimed to develop a large animal model for the study of pathogenesis and treatment of vein graft atherosclerosis. Methods An autologous reversed jugular vein graft was inserted end-to-end into the transected common carotid artery of ten hypercholesteroemic minipigs. The vein grafts were investigated 12-14 weeks later with ultrasound and angiograpy in vivo and microscopy post mortem. Results One minipig died during follow up (patent vein graft at autopsy, and one vein graft thrombosed early. In the remaining eight patent vein grafts, the mean (standard deviation intima-media thickness was 712 ?m (276 ?m versus 204 ?m (74 ?m in the contralateral control internal jugular veins (P diameter of artery. No plaques were found in four non-oversized vein grafts (P Conclusions Our model of jugular vein graft in the common carotid artery of hypercholesterolemic minipigs displayed the components of human vein graft disease, i.e. thrombosis, intimal hyperplasia, and atherosclerosis. Advanced atherosclerosis, the main cause of late failure of human aortocoronary vein grafts was only seen in oversized grafts. This finding suggests that oversized vein grafts may have detrimental effects on patient outcome.

Thim Troels

2012-03-01

395

Oversized vein grafts develop advanced atherosclerosis in hypercholesterolemic minipigs  

DEFF Research Database (Denmark)

ABSTRACT: BACKGROUND: Accelerated atherosclerosis is the main cause of late aortocoronary vein graft failure. We aimed to develop a large animal model for the study of pathogenesis and treatment of vein graft atherosclerosis. METHODS: An autologous reversed jugular vein graft was inserted end-to-end into the transected common carotid artery of ten hypercholesteroemic minipigs. The vein grafts were investigated 12-14 weeks later with ultrasound and angiograpy in vivo and microscopy post mortem. RESULTS: One minipig died during follow up (patent vein graft at autopsy), and one vein graft thrombosed early. In the remaining eight patent vein grafts, the mean (standard deviation) intima-media thickness was 712 mum (276 mum) versus 204 mum (74 mum) in the contralateral control internal jugular veins (P diameter of artery). No plaques were found in four non-oversized vein grafts (P <.05). CONCLUSIONS: Our model of jugular vein graft in the common carotid artery of hypercholesterolemic minipigs displayed the components of human vein graft disease, i.e. thrombosis, intimal hyperplasia, and atherosclerosis. Advanced atherosclerosis, the main cause of late failure of human aortocoronary vein grafts was only seen in oversized grafts. This finding suggests that oversized vein grafts may have detrimental effects on patient outcome.

Thim, Troels; Hagensen, Mette Kallestrup

2012-01-01

396

Is a palpable short saphenous vein a useful clinical sign in varicose vein assessment?  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The short saphenous vein (SSV) may be palpable in the popliteal fossa in patients with varicose veins. A prospective study has been carried out to determine the significance of this sign in the presence of primary varicose veins. The SSV was assessed by palpation of the popliteal fossa with the knee slightly flexed. Hand-held Doppler insonation (HHD) was also used in the out-patient clinic. All patients had SSV assessment by duplex scanning. One hundred and sixty legs were examined. In 68 the...

Aiono, S.; Simmons, M. J.; Galland, R. B.; Magee, T. R.

2001-01-01

397

Endovascular Laser Therapy for Varicose Veins  

Science.gov (United States)

Executive Summary Objective The objective of the MAS evidence review was to conduct a systematic review of the available evidence on the safety, effectiveness, durability and cost–effectiveness of endovascular laser therapy (ELT) for the treatment of primary symptomatic varicose veins (VV). Background The Ontario Health Technology Advisory Committee (OHTAC) met on November 27, 2009 to review the safety, effectiveness, durability and cost-effectiveness of ELT for the treatment of primary VV based on an evidence-based review by the Medical Advisory Secretariat (MAS). Clinical Condition VV are tortuous, twisted, or elongated veins. This can be due to existing (inherited) valve dysfunction or decreased vein elasticity (primary venous reflux) or valve damage from prior thrombotic events (secondary venous reflux). The end result is pooling of blood in the veins, increased venous pressure and subsequent vein enlargement. As a result of high venous pressure, branch vessels balloon out leading to varicosities (varicose veins). Symptoms typically affect the lower extremities and include (but are not limited to): aching, swelling, throbbing, night cramps, restless legs, leg fatigue, itching and burning. Left untreated, venous reflux tends to be progressive, often leading to chronic venous insufficiency (CVI). A number of complications are associated with untreated venous reflux: including superficial thrombophlebitis as well as variceal rupture and haemorrhage. CVI often results in chronic skin changes referred to as stasis dermatitis. Stasis dermatitis is comprised of a spectrum of cutaneous abnormalities including edema, hyperpigmentation, eczema, lipodermatosclerosis and stasis ulceration. Ulceration represents the disease end point for severe CVI. CVI is associated with a reduced quality of life particularly in relation to pain, physical function and mobility. In severe cases, VV with ulcers, QOL has been rated to be as bad or worse as other chronic diseases such as back pain and arthritis. Lower limb VV is a common disease affecting adults and estimated to be the seventh most common reason for physician referral in the US. There is a strong familial predisposition to VV with the risk in offspring being 90% if both parents affected, 20% when neither is affected, and 45% (25% boys, 62% girls) if one parent is affected. Globally, the prevalence of VV ranges from 5% to 15% among men and 3% to 29% among women varying by the age, gender and ethnicity of the study population, survey methods and disease definition and measurement. The annual incidence of VV estimated from the Framingham Study was reported to be 2.6% among women and 1.9% among men and did not vary within the age range (40-89 years) studied. Approximately 1% of the adult population has a stasis ulcer of venous origin at any one time with 4% at risk. The majority of leg ulcer patients are elderly with simple superficial vein reflux. Stasis ulcers are often lengthy medical problems and can last for several years and, despite effective compression therapy and multilayer bandaging are associated with high recurrence rates. Recent trials involving surgical treatment of superficial vein reflux have resulted in healing and significantly reduced recurrence rates. Endovascular Laser Therapy for VV ELT is an image-guided, minimally invasive treatment alternative to surgical stripping of superficial venous reflux. It does not require an operating room or general anesthesia and has been performed in outpatient settings by a variety of medical specialties including surgeons (vascular or general), interventional radiologists and phlebologists. Rather than surgically removing the vein, ELT works by destroying, cauterizing or ablating the refluxing vein segment using heat energy delivered via laser fibre. Prior to ELT, colour-flow Doppler ultrasonography is used to confirm and map all areas of venous reflux to devise a safe and effective treatment plan. The ELT procedure involves the introduction of a guide wire into the target vein under ultrasound guidance followed by the inse

2010-01-01

398

[Effect of transposase on the transposition activity of piggyBac transposon transfected into Toxoplasma gondii].  

Science.gov (United States)

To determine the transfection efficiency about PBase to piggyBac transposon in transfecting to Toxoplasma gondii, T. gondii RH strain tachyzoites were transfected with plasmid PB-Toxo-RFP which was expressed piggyBac transposon with a red fluorescent protein and Toxo-PBase plasmid which is a transposable enzyme. T. gondii tachyzoites were transfected with PB-Toxo-RFP plasmid alone as control group. The expression of red fluorescent protein was detected by flow cytometry at 24 h after transfection. The transposition efficiency in PB-Toxo-RFP+Toxo-PBase group and PB-Toxo-RFP group was 73% and 43%, respecitvely (P < 0.01). It suggests that the PBase transposase can improve the transfection efficiency of piggyBac transposon in T. gondii tachyzoites. PMID:24812869

Song, Xin-Shuai; Wei, Feng; Zhang, Ying-Guang; Cao, Li-Li; Liu, Quan

2013-06-01

399

Transposition of the left carotid artery to the ascending aorta to repair aortic arch injury.  

Science.gov (United States)

We present a case where we repaired the aortic arch, by the transposition of the left carotid artery to the ascending aorta. A 52-year-old man presented to our department with a penetrating chest wound by a gunshot in the attempt of suicide. The aortic arch and the insertion of the left carotid artery were involved in the lesion. Through sternotomic approach, the aortic arch was repaired in extracorporeal circulation. Left carotid artery was transected to allow easier repair of the arch posterior wall involved in the lesion, and to reduce the danger of residual stenosis. Then, it was translocated to the ascending aorta by interposing a 7-mm Gore-Tex (W.L. Gore & Associates, Flagstaff, AZ, USA) conduit. The patient complicated renal failure and pneumonia in the postoperative period, but eventually he was discharged in good general conditions. PMID:18793235

Lentini, Salvatore; Gaeta, Roberto; Tancredi, Fabrizio; Savasta, Marcello; La Monaca, Marco; Ciuffreda, Francesco; Monaco, Francesco

2009-01-01

400

Transposition and national level resources â?? Introducing the Cross Border Health Care Directive in Eastern Europe  

DEFF Research Database (Denmark)

Several recent papers have summarised the status of EU implementation studies. In this paper we suggest that the issue of sector specific resources has received too little attention in previous studies. Sector specific resources include â??health sector resourcesâ? and â??state administrative resourcesâ?. Our theoretical contribution is thus to add an explicit and more detailed concern for "sector specific resources" in national transposition. This can refine the understanding of resources, for example in the multi-variable models that are emerging as the state of the art in the field of EU implementation studies. To illustrate these points we have chosen an empirical design focusing on a directive with a potentially high impact on system resources and several ambiguous components (the Cross Border Health Care Directive). We have further chosen to focus on two Eastern European countries (Bulgaria and Poland), where limited resources within their health care systems are an important concern.

Vasev, Nikolay Rumenov; Vrangbæk, Karsten

2014-01-01

 
 
 
 
401

Grasping the experience of the other from an interview: Self-transposition in use  

Directory of Open Access Journals (Sweden)

Full Text Available This article describes a part of the interview process that is never usually reported. Listening to what people say is the key to increasing our knowledge of human existences. Procuring knowledge about human experience is much more challenging. Although good sources on how to prepare and conduct an interview exist, the process of the interviewer's perception of the interviewee's message and meaning is less examined. Beyond the role of eliciting the data, the researcher endeavours to reproduce the interviewee's narration and not the voice of the researcher. By illustrating the process during the interview, further transparency and thereby validity may be achieved. To exemplify this, the perception of the interviewer is explored, and here Heidegger's work on self-transposition has proved to be helpful.

Sanne Angel

2013-08-01

402

Structural and molecular reorganization of cardiomyocytes in transposition of the main vessels.  

Science.gov (United States)

Studies of myocardial autopsy specimens from infants (0-12 months) with transposition of the main vessels showed the formation of a complex of compensatory adaptive, degenerative, and destructive changes, manifesting at a tissue level in cardiomyocyte heterogeneity and formation of cardiosclerosis zones. Cardiac myosin synthesis was replaced by synthesis of skeletal myosin, which was detected at the molecular level. Clinically it manifested in the progress of heart failure. Hyperplastic processes (intensive polyploid transformation of the nuclei) play an important role in heart remodeling in patients aged over 6 months. The findings of immunohistochemical and fluorescent studies seem to be prognostically important and provide more accurate data on the pathological processes in the myocardium at the initial stages of heart disease development starting from birth. PMID:21246103

Volkov, A M; Kliver, E E; Lushnikova, E L; Larionov, P M; Subbotin, D V; Sergeyevichev, D S; Nepomnyashchikh, L M

2010-09-01

403

Full endoscopic endonasal extreme far-medial approach: Eustachian tube transposition.  

Science.gov (United States)

The complex anatomical relationships within the skull base have been described from an endoscopic point of view. However, systematic surgical, not just anatomical, management of the eustachian tube (ET) and the approach to the styloid and parapharyngeal spaces have not yet been described. The authors describe the full endoscopic endonasal extreme far-medial approach used in their surgical practice and show how they applied it to a case. To the authors' knowledge, from a strictly surgical viewpoint, this work is the first to describe a fundamental endonasal approach to the inferior clivus, the condylar and tubercular compartments, the prestyloid and poststyloid spaces, and ET transposition to expose the aforementioned structures without disrupting the ET. For lesions with mediolateral growth patterns, the authors consider the extreme far-medial approach to be superior to the pure transmaxillary approach. Additional cases and more evidence are needed to refine this surgical technique. PMID:23473241

Simal-Julián, Juan-Antonio; Miranda-Lloret, Pablo; Beltrán-Giner, Andres; Plaza-Ramirez, Estela; Botella-Asunción, Carlos

2013-05-01

404

Partial transposition of random states and non-centered semicircular distributions  

CERN Document Server

Let W be a Wishart random matrix of size d^2 times d^2, considered as a block matrix with d times d blocks. Let Y be the matrix obtained by transposing each block of W. We prove that the empirical eigenvalue distribution of Y approaches a non-centered semicircular distribution when d tends to indinity. The proofs are based on the moments method. This matrix model is relevant to Quantum Information Theory and corresponds to the partial transposition of a random induced state. We show for example that a mixed state on C^d tensor C^d, obtained after tracing out a random pure state over some ancilla, is typically PPT (hence undistillable) for large d, whenever the dimension of the ancilla exceeds Cd^2 for some constant C (conjecturally, C=4).

Aubrun, Guillaume

2010-01-01

405

[Arterial switch operation for transposition of the great arteries with situs inversus and mirror image dextrocardia].  

Science.gov (United States)

We report a successful arterial switch operation for complete transposition of great arteries with atrial and visceral situs inversus totalis and mirror image dextrocardia in a 12-day-old infant girl. The aorta was located left side-by-side to the pulmonary trunk with a single coronary artery (mirror image of 1RLCx). After French maneuver, the posterior circumference of the neo-aorta was reconstructed. Then the coronary button was transplanted into the neo-aorta with a trap door technique carefully avoiding any twist and over-stretch. The neo-pulmonary trunk was reconstructed with an autologous pericardial patch and sutured to the longitudinal incision made into the left central pulmonary artery. The baby was discharged from hospital and has been doing well without any morbidity relating myocardial ischemia. PMID:22940657

Uchida, Hiroaki; Nemoto, Shintaro; Ozawa, Hideki; Sasaki, Tomoyasu; Motohashi, Yoshikazu; Katsumata, Takahiro; Inoue, Nao; Kishi, Kanta; Okumura, Kenichi; Mori, Yasuhiko

2012-09-01

406

Museographic transposition : The development of a museum exhibit on animal adaptations to darkness  

DEFF Research Database (Denmark)

Science museums define the objectives of their exhibitions in terms of visitor learning outcomes, yet exhibition engineering staff lack theoretical and empirical research findings on which to base the creation of these educational environments. Here, a first step towards providing such research is reported. Museographic transposition was used as an analytical framework to investigate the development of an existing museum exhibit on animal adaptations to darkness. The analysis yielded a descriptive model of exhibition engineering as a three-stage process in which simultaneous processes of epistemological development and museum-pedagogical development result in the curatorial brief which forms the basis of the subsequent museographic development of the physical exhibit. Examples are discussed which illustrate the use of the model in identifying exhibition inconsistencies, but also in generating new ideas for exhibition engineering. The potential for further developing the model is discussed.

Mortensen, Marianne Foss

2010-01-01

407

Central vein stenosis in a dialysis patient: a case report  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Introduction Central vein stenosis is not a rare problem in patients on dialysis. Placement of a central vein catheter for dialysis access substantially increases the risk of central vein stenosis. However, even in patients without a previous history of central vein catheter placement, a stenosis can be found in up to 40% of patients. Case presentation We report the case of a 60-year-old male Caucasian German dialysis patient who complained of dry cough, swelling of his right arm and facial edema. Computed tomography venography showed a near-total stenosis of his brachiocephalic vein. We discuss the incidence and risk of central vein stenosis in patients on dialysis and report on a successful minimally invasive interventional treatment. Conclusion Central vein stenosis is not a rare problem in patients on hemodialysis and can even occur without previous placement of central venous catheters. High shunt volumes seem to increase the risk associated with central vein catheters.

Gottmann Uwe

2012-07-01

408

Endovenous laser therapy for varicose vein  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Laser has become a useful technology in treating venous incompetence especially superficial venous disease. Introduction of endovenous thermal ablation through endovenous laser therapy helped by duplex ultrasound guidance has provided an alternative for traditional saphenous vein stripping. High success rate, minor complications, and minimally invasive technique provide the advantages over traditional treatment. In this case illustrated, the endovenous laser therapy used for great saphenou...

Erwin Mulia; Iwan Dakota; Hananto Andriantoro; Kaligis, R. W. M.; Ismoyo Sunu

2013-01-01

409

Portal vein complications after pediatric liver transplantation.  

Science.gov (United States)

Relatively few pediatric donors are available in relation to the number of children waiting for a liver transplant. This limited number of pediatric donor livers leads to the use of adult livers, usually requiring more complex portal vein (PV) anastomoses. These anastomoses are complicated by differences in PV caliber between donors and recipients, as well as by limitations of PV length, which may be inadequate to reach the recipient spleno-mesenteric junction. Three types of post-transplant complications result from these complexities: 1) anomalies of the portal flow; 2) stenosis of the PV anastomosis; and 3) PV thrombosis. Abnormal portal flow may rarely need a specific intervention, but persistent stenosis or appearance of signs of portal hypertension need to be corrected. Balloon dilatation and placement of a stent are usually successful to repair stenosis. Portal vein thromboses are in general diagnosed in the immediate post-operative period and frequently lead to re-transplantation; however, thrombolytic therapy should be attempted in children without major signs of liver necrosis. When intra-hepatic portal vein(s) are permeable, despite extrahepatic PV thrombosis, a Meso-Rex shunt may be the indicated therapy. PMID:22434261

Alvarez, Fernando

2012-06-01

410

Tensile Properties of Veins of Damselfly Wing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Microtension test of Costa and Radius veins of damselfly wing was conducted to measure tensile strength and modulus. The specimens were classified into fresh and dry depending on when the samples were prepared and tested. Fresh samples tested immediately after extracting from the fly while the dry samples were tested one year after extraction and stored in a

Rupan Talucdher; Kunigal Shivakumar

2013-01-01

411

A poorly known case of watershed transposition between the São Francisco and upper Paraná river basins  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese Durante a construção do reservatório hidroelétrico de Furnas na bacia do alto rio Paraná no início da década de 1960, o fluxo de águas do rio Piumhi foi desviado para as cabeceiras da bacia do rio São Francisco. O rio Piumhi era um tributário da margem direita do rio Grande, o qual se une com rio Pa [...] ranaíba para formar o rio Paraná. A transposição permitiu que toda a fauna de peixes do rio Piumhi e banhados, lagos e tributários associados se mesclasse com a fauna de peixes da bacia do rio São Francisco através do ribeirão Sujo, um tributário da margem direita do São Francisco. A transposição da bacia pode ter ocasionado grande impacto na atual composição da fauna de peixes da bacia do alto rio São Francisco. Abstract in english During construction of the Furnas hydroelectric power dam in the upper rio Paraná basin in the early 1960s, the rio Piumhi drainage outflow was diverted into the headwaters of the São Francisco river basin. The rio Piumhi was a right bank tributary of the rio Grande, which unites with the rio Parana [...] íba to form the rio Paraná. The transposition allowed the entire fish fauna of the rio Piumhi and associated swamps, lakes, and tributaries to intermingle with the fish fauna of the São Francisco basin via the ribeirão Sujo, a right bank tributary of the São Francisco. The transposition of the watershed may have had a major impact on the current composition of the fish fauna of the upper rio São Francisco watershed.

Orlando, Moreira Filho; Paulo Andreas, Buckup.

412

Caracterização morfológica e agronômica de acessos de manjericão e alfavaca / Morphologic and agronomic characterization of basil accessions  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese O manjericão (Ocimum basilicum L.) pode ser considerado cultura anual ou perene, conforme o local de cultivo. Existem diversas finalidades para seu uso na culinária, como planta ornamental, medicinal e aromática, sendo o seu oleo essencial valorizado no mercado internacional pelo teor de linalol. Ca [...] racterizou-se morfológica e agronômicamente, acessos de Ocimum sp. visando a seleção de genótipos com alto rendimento de óleo essencial rico em linalol. O delineamento experimental foi de blocos casualizados, com duas repetições, avaliando 55 genótipos do Banco de Germoplasma de Ocimum da UFS. Avaliou-se a altura de plantas, peso da matéria seca da parte aérea, teor e rendimento de óleo essencial. Observou-se grande diversidade entre os genótipos para todas as variáveis morfológicas e agronômicas avaliadas. Houve grande amplitude entre os genótipos quanto ao teor de óleo essencial, variando de 0,202 a 2,536 ml/100g e para o rendimento de óleo essencial, variando de 1,103 a 21,817 l/ha. Avaliando as variáveis teor e rendimento de óleo essencial de O. basilicum pode-se selecionar os genótipos NSL6421, PI197442, PI358464, PI414194, PI531396 e 'Fino Verde' para o programa de melhoramento genético que visa a obtenção de novas cultivares de manjericão com alto rendimento de óleo essencial rico em linalol. Abstract in english The sweet basil (Ocimum basilicum L.), can be an annual or a perennial plant depending on the place where it is grown. This plant has several culinary, ornamental, medicinal and aromatic uses. The value of its essential oil in the international market depends on the percentage of linalool. We charac [...] terized the morphologic and agronomic qualities of the Ocimum accessions, to select genotypes with higher yield of essential oil rich in linalool. Experiment design consisted of randomized blocks with two replications, evaluating 55 genotypes of the Germplasm Bank of Ocimum from the Universidade Federal do Sergipe, Brazil. The plant height, dry matter of the aerial plant parts, essential oil content and yield were evaluated. A wide diversity among the genotypes was observed for all morphological and agronomical traits evaluated. A large amplitude occurred among genotypes regarding the content of essential oil from 0,202 to 2,536 ml/100g. For the essential oil yield an amplitude from 1,103 to 21,817 l/ha was observed. Evaluating the traits content and yield of O. basilicum essential oil the genotypes NSL6421, PI197442, PI358464, PI414194, PI531396 and 'Fino Verde' can be selected for breeding programs to obtain cultivars with a high yield of essential oil rich in linalool.

Blank, Arie F.; Carvalho Filho, José L.S. de; Santos Neto, Antônio L. dos; Alves, Péricles B.; Arrigoni-Blank, Maria de Fátima; Silva-Mann, Renata; Mendonça, Marcelo da C..

413

Deep Vein Thrombosis Following Laparoscopic Hysterectomy in a Nulliparous Woman  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A nulliparous woman aged 45 years was referred to us with painful swelling in left lower limb. She underwent laparoscopic hysterectomy for menorrhagia 12 days prior to the admission. The laparoscopic surgery was completed in 90 min without blood loss and blood transfusion. The size of the uterus was approximately 12 weeks. Duplex scan of the left lower limb confirmed thrombosis of the left external iliac vein, femoral vein, popliteal vein and tibial veins. On examination the laparoscopic ...

Pinjala, Ramakrishna; Lankala, Ramachandra Reddy; Pulipati, V. N. L. S. Vani

2011-01-01

414

Vein quality in infrainguinal revascularisation: assessment by angioscopy and histology.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The concept of vein quality has been slow to gain widespread acceptance, but an increasing body of evidence suggests that vein quality is relevant to the success of bypass grafting for peripheral vascular disease. The angioscope represents an additional tool for monitoring and preparing vein grafts during infrainguinal revascularisation. Within the overall theme of vein quality, this paper presents the cumulative experience with vascular endoscopy at Bristol Royal Infirmary. In clinical studi...

1998-01-01

415

Isolated Subclavian Vein Injury: A Rare and High Mortality Case  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Isolated subclavian vein injuries are rarely seen without concomitant arterial injury, bone fracture, damage to brachial plexus, and thoracal traumas. Our case was brought to the emergency service 6 hours after he had been shot at the shoulder with a firearm. After detection of extravasation from the left axillary and subclavian vein on arteriographic and venographic examinations, he was operated on. An autogenous saphenous vein graft was interposed between subclavian and axillary veins. Card...

Sahin Iscan; Mustafa Etli; Ozgur Gursu; Esra Eker; Helin El Kilic

2013-01-01

416

External Jugular Vein Aneurysm Presenting as a Cervical Mass  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Venous aneurysms are rare causes of neck mass. Among neck veins, aneurysms of the external jugular vein are extremely uncommon. We present a case of a woman with a history of prior internal jugular vein catheterization who presented at a rural primary health care unit with a nontender progressively enlarging swelling in the right supraclavicular region. B-mode and Doppler ultrasound examination revealed a saccular dilatation of the external jugular vein, suggesting a posttraumatic venous aneu...

Drakonaki, Eleni E.; Symvoulakis, Emmanouil K.; Fachouridi, Anthoula; Kounalakis, Dimitrios; Tsafantakis, Emmanouil

2011-01-01

417

The Incidence of Portal Vein Thrombosis at Liver Transplantation  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The incidence of portal vein thrombosis was examined in 885 patients who received orthotopic liver transplantations for various end-stage liver diseases between 1989 and 1990. The thrombosis was classified into four grades. Grade 1 was thrombosis of intrahepatic portal vein branches, grade 2 was thrombosis of the right or left portal branch or at the bifurcation, grade 3 was partial obstruction of the portal vein trunk, and grade 4 was complete obstruction of the portal vein trunk. Among the ...

Nonami, Toshiaki; Yokoyama, Itsuo; Iwatsuki, Shunzaburo; Starzl, Thomas E.

1992-01-01