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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.

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

2012-09-01

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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.

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

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Use of meso-Rex shunt with transposition of the coronary vein for the management of extrahepatic portal vein obstruction.  

Science.gov (United States)

The meso-Rex shunt is used to safely and effectively treat patients with portal hypertension due to extrahepatic portal vein obstruction. In the standard meso-Rex shunt technique, the patient's own internal jugular vein is used as a vascular autograft. Inevitably, such a procedure requires neck exploration and sacrifice of the internal jugular vein. Here, we present a case of a 20-year-old man with idiopathic extrahepatic portal vein obstruction, who was treated with a new technique of transposition of the coronary vein, which is enlarged in most cases of portal hypertension, as an alternative to the standard meso-Rex shunt technique. The transposition of the coronary vein into the Rex recessus is more efficient and less invasive than harvesting an autologous vein graft. Therefore, this technique simplifies the procedure and should be used when possible. PMID:24761417

Cho, Yong-Pil; Ha, Tae-Yong; Ko, Gi-Young; Kim, Kyung-Mo; Lee, Sung-Gyu

2014-02-01

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Venas Mediana Cefálica y Mediana Basílica: ¿Por qué su Exclusión de Terminologia Anatomica? / Median Cephalic and Median Basilic Veins: Why their Exclusion from Terminologia Anatomica?  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: Spanish Abstract in spanish Numerosos artículos han descrito la distribución venosa superficial de la fosa cubital. Estas venas tienen importancia anatómica y clínica y son de interés para anatomistas, cirujanos y enfermeras. Las venas mediana cefálica y mediana basílica son productos de la división de la vena cefálica del ant [...] ebrazo y ambas drenan en las venas cefálica accesoria y basílica, respectivamente. Nomina Anatomica consideraba a las venas mediana basílica y mediana cefálica, lo que permitía hacer una descripción anatómica precisa, clara y entendible de ellas. Creemos necesario incluir nuevamente los términos de vena mediana basílica y vena mediana cefálica en Terminologia Anatomica, los que fueron excluidos por el Programa Federativo Internacional de Terminología Anatómica (FIPAT). Abstract in english Numerous articles have described the distribution of superficial veins in the cubital fossa. These veins have anatomic and clinical importance and are of interest to anatomists, surgeons and nurses. The median cephalic and median basilic veins are the product of the division of the cephalic vein of [...] the forearm. Both veins drain into the cephalic vein accessory and basilic vein, respectively. Nomina Anatomica considered the median cephalic vein and median basilic vein, which has allowed a precise, clear and understandable anatomical description. We need to include the terms median cephalic and median basilic veins in Terminologia Anatomica, terms excluded by the Federative International Program for Anatomical Terminology (FIPAT).

Mariano, del Sol; Bélgica, Vásquez.

2014-06-01

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A New Formula to Estimate the Length of Right Upper Extremity Vein from Elbow Crease to Carina Calculated by Peripherally Inserted Central Catheter Insertion through Right Basilic Vein Puncture  

International Nuclear Information System (INIS)

To measure the length of the upper extremity vein between the elbow crease and the carina (elbow crease to carina length, ECL), to facilitate the appropriate positioning of the tip of the peripherally inserted central catheter (PICC). A total of 124 patients (64 men and 60 women; mean age 65.2 ± 15.4 years; range, 21-90 years) inserted with PICC through the right basilic vein under fluoroscopy were included in this retrospective study. The ECL was determined as follows: ECL = (distance from elbow crease to puncture site) + (the catheter length of PICC) - (distance from carina to catheter tip on post-procedural chest radiograph). We analyzed the relationship between ECL and patient height. The mean ECL through right basilic vein was 42.07 ±4.03 cm (27.5 to 52.2 cm). ECL was found to be significantly correlated with patient height: ECL (cm) = 0.24 X patient height (cm) + 3.75. The formula developed in our study would be helpful for predicting the optimal catheter length during a blind bedside procedure of PICC via the right basilic vein.

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A New Formula to Estimate the Length of Right Upper Extremity Vein from Elbow Crease to Carina Calculated by Peripherally Inserted Central Catheter Insertion through Right Basilic Vein Puncture  

Energy Technology Data Exchange (ETDEWEB)

To measure the length of the upper extremity vein between the elbow crease and the carina (elbow crease to carina length, ECL), to facilitate the appropriate positioning of the tip of the peripherally inserted central catheter (PICC). A total of 124 patients (64 men and 60 women; mean age 65.2 {+-} 15.4 years; range, 21-90 years) inserted with PICC through the right basilic vein under fluoroscopy were included in this retrospective study. The ECL was determined as follows: ECL = (distance from elbow crease to puncture site) + (the catheter length of PICC) - (distance from carina to catheter tip on post-procedural chest radiograph). We analyzed the relationship between ECL and patient height. The mean ECL through right basilic vein was 42.07 {+-}4.03 cm (27.5 to 52.2 cm). ECL was found to be significantly correlated with patient height: ECL (cm) = 0.24 X patient height (cm) + 3.75. The formula developed in our study would be helpful for predicting the optimal catheter length during a blind bedside procedure of PICC via the right basilic vein.

Cho, Hyun Hwan; Jeon, Eui Yong; Lee, Hyun Jung; Lee, Hyun; Koh, Sung Hye; Choi, Sun Young; Lee, Kwan Seop [Dept. of Radiology, Hallym University Scared Heart Hospital, Hallym University College of Medicine, Anyang (Korea, Republic of); Yoon, Dae Young [Dept. of Radiology, Kangdong Scared Heart Hospital, Hallym University College of Medicine, Seoul (Korea, Republic of); Im, Hyoung June [Dept. of Occupational Medicine, Hallym University Scared Heart Hospital, Hallym University College of Medicine, Anyang (Korea, Republic of)

2012-03-15

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Método trigonométrico para o acesso à veia basílica no terço distal do braço Trigonometric method to the anatomo-surgical approach of the basilic vein in the arm distal third  

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Full Text Available OBJETIVO: Determinar parâmetros anátomo-cirúrgicos para o acesso rápido, seguro e preciso da veia basílica no terço distal do braço e avaliar os aspectos anatômicos relacionados à presença, número e sintopia neural na região. MÉTODO: Foram utilizados 30 membros superiores de cadáveres adultos, brasileiros, do sexo masculino (27 a 58 anos, fixados em solução de formalina a 10%. Foi criado um método trigonométrico utilizando-se parâmetros anatômicos, determinando-se um triângulo cujo ápice foi o ponto de referência para a localização da veia basílica no terço distal do braço. A região foi dissecada e a veia exposta. O método foi também utilizado na dissecação venosa de 15 pacientes. RESULTADOS: A veia basílica foi encontrada na face medial do terço distal do braço de todos os cadáveres, localizando-se no ápice do trígono em 70% dos casos e em situação medial em relação ao mesmo em 30%. Em 83,33% havia ramos dos nervos cutâneos mediais do braço e antebraço junto à adventícia da veia basílica. Foram encontrados dois ramos dos nervos cutâneos mediais do braço e antebraço relacionados a cada veia basílica em 90% dos membros superiores e apenas um ramo no restante. Em 30% dos casos existiam ramos posteriores à veia basílica, o que deve ser considerado ao se realizar a dissecação da mesma. CONCLUSÕES: O método proposto para a localização da veia basílica mostrou-se eficaz, rápido, seguro e preciso, indicando ser uma boa opção de acesso venoso no paciente em estado crítico que necessite de tal procedimento.BACKGROUND: To determine anatomo-surgical parameters to fast, safe and precise approach to the basilic vein in the arm distal third and to assess anatomic features related to the presence, and nerve sintopy in the region. MATERIAL AND METHODS: The study was made in 15 human corpses, from male adults aged 27 up to 58 years old, summing up 30 upper limbs, fixed in 10% formalin. It was created a trigonometric method using anatomic parameters to determine a triangle which apex was the reference point to locate the basilic vein in the arm distal third. The region was dissected, the vein exposed, its diameter assessed with a caliper. The method was utilized to perform the basilic vein dissection in 15 patients that required the venous approach. RESULTS AND CONCLUSION: The basilic vein was found in the medial surface of arm distal third in all studied cadavers. The vein was located on the triagle apex in 70% of the cases (87% of the right and 53% of the left upper limbs. In 30% of the specimens the vein was placed medially to the triangle apex, the distance did not exceeded 5mm. In 83,33% of the specimens there were branches of the medial cutaneous nerves of arm and forearm against the vein adventitia. It was found two branches of the medial cutaneous nerves of arm and forearm related to each basilic vein in the majority of the upper limbs (90% - 27 limbs and only one branch in the remaining (10 % - 3 limbs. In 30% of the cases there were branches located behind the basilic vein, this fact must be considered when the basilic vein dissection is made. The proposed method to the basilic vein location showed to be fast, safe and precise, indicating that the method is a good option to the vascular approach in patients in critical conditions that demand this procedure.

Alexandre Augusto Pinto Cardoso

2006-06-01

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Método trigonométrico para o acesso à veia basílica no terço distal do braço / Trigonometric method to the anatomo-surgical approach of the basilic vein in the arm distal third  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: Determinar parâmetros anátomo-cirúrgicos para o acesso rápido, seguro e preciso da veia basílica no terço distal do braço e avaliar os aspectos anatômicos relacionados à presença, número e sintopia neural na região. MÉTODO: Foram utilizados 30 membros superiores de cadáveres adultos, brasi [...] leiros, do sexo masculino (27 a 58 anos), fixados em solução de formalina a 10%. Foi criado um método trigonométrico utilizando-se parâmetros anatômicos, determinando-se um triângulo cujo ápice foi o ponto de referência para a localização da veia basílica no terço distal do braço. A região foi dissecada e a veia exposta. O método foi também utilizado na dissecação venosa de 15 pacientes. RESULTADOS: A veia basílica foi encontrada na face medial do terço distal do braço de todos os cadáveres, localizando-se no ápice do trígono em 70% dos casos e em situação medial em relação ao mesmo em 30%. Em 83,33% havia ramos dos nervos cutâneos mediais do braço e antebraço junto à adventícia da veia basílica. Foram encontrados dois ramos dos nervos cutâneos mediais do braço e antebraço relacionados a cada veia basílica em 90% dos membros superiores e apenas um ramo no restante. Em 30% dos casos existiam ramos posteriores à veia basílica, o que deve ser considerado ao se realizar a dissecação da mesma. CONCLUSÕES: O método proposto para a localização da veia basílica mostrou-se eficaz, rápido, seguro e preciso, indicando ser uma boa opção de acesso venoso no paciente em estado crítico que necessite de tal procedimento. Abstract in english BACKGROUND: To determine anatomo-surgical parameters to fast, safe and precise approach to the basilic vein in the arm distal third and to assess anatomic features related to the presence, and nerve sintopy in the region. MATERIAL AND METHODS: The study was made in 15 human corpses, from male adults [...] aged 27 up to 58 years old, summing up 30 upper limbs, fixed in 10% formalin. It was created a trigonometric method using anatomic parameters to determine a triangle which apex was the reference point to locate the basilic vein in the arm distal third. The region was dissected, the vein exposed, its diameter assessed with a caliper. The method was utilized to perform the basilic vein dissection in 15 patients that required the venous approach. RESULTS AND CONCLUSION: The basilic vein was found in the medial surface of arm distal third in all studied cadavers. The vein was located on the triagle apex in 70% of the cases (87% of the right and 53% of the left upper limbs). In 30% of the specimens the vein was placed medially to the triangle apex, the distance did not exceeded 5mm. In 83,33% of the specimens there were branches of the medial cutaneous nerves of arm and forearm against the vein adventitia. It was found two branches of the medial cutaneous nerves of arm and forearm related to each basilic vein in the majority of the upper limbs (90% - 27 limbs) and only one branch in the remaining (10 % - 3 limbs). In 30% of the cases there were branches located behind the basilic vein, this fact must be considered when the basilic vein dissection is made. The proposed method to the basilic vein location showed to be fast, safe and precise, indicating that the method is a good option to the vascular approach in patients in critical conditions that demand this procedure.

Alexandre Augusto Pinto, Cardoso; Ricardo Luiz, Smith; José Carlos, Prates; Serafim Vincenzo, Cricenti.

2006-06-01

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Medial Antebrachial Cutaneous Nerve: Anatomical Relationship with the Medial Epicondyle, Basilic Vein and Brachial Artery / Nervio Cutáneo Antebraquial Medial: Relación Anatómica con el Epicóndilo Medial, Vena Basílica y Arteria Braquial  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: English Abstract in spanish El recorrido del nervio cutáneo antebraquial medial (NCAM) proporciona la inervación sensorial medial del antebrazo. Su anatomía se ha descrito en parte, porque los datos relativos a su patrón de ramificación y distancias a puntos de referencia adyacentes son insuficientes. El propósito de este estu [...] dio fue proporcionar datos morfométricos sobre la anatomía del NCAM, comparando entre lados y sexos. Se disecaron 96 miembros superiores de 26 hombres y 22 mujeres. Se encontró que 5 ramos del NCAM traspasaron la fascia profunda y llegaron 4 hasta la línea interepicondilar (LIE). Presencia de 2 y 3 ramos se encontró en la mayoría de los casos (>80%). Las distancias de estos ramos a los puntos anatómicos variaron considerablemente. En caso de ausencia de ramos, la distancia medial al epicóndilo medial (EM) y arteria braquial (AB) fueron de aproximadamente 1,5 cm, mientras que a la vena basílica (VB) fueron 0,7 cm en ambos sexos. Independientemente del patrón de ramificación, el NCAM podría pasar sobre o cerca (a menos de 0,5 cm ) del EM, VB y AB. Asimetría en el patrón de ramificación se encontró en 50% de las muestras. Diferencias en algunos de los parámetros de medición se observaron según sexo, pero no por lado. Estos datos son relevantes para localizar el NCAM durante el bloqueo del nervio y la toma de injertos, sino también para evitar la lesión del nervio durante los procedimientos quirúrgicos. Abstract in english Medial antebrachial cutaneous nerve (MACN) courses in the medial arm to provide sensory innervation to the medial forearm. Its anatomy has been partly described since data regarding its branching pattern and distances to adjacent landmarks are still lacking. The purpose of this study was to provide [...] morphometric anatomy of the MACN with comparisons between sides and sexes. Ninety-six upper extremities from 26 males and 22 females were dissected. We found that up to 5 branches of MACN pierced the deep fascia with the maximum of 4 reaching the interepicondylar line (IEL). Presence of 2 and 3 branches was found in the majority of cases (> 80%). The distances from these branches to the landmarks varied considerably. In case of no branch, the mean distances to the medial epicondyle (ME) and brachial artery (BA) were approximately 1.5 cm while those to the basilic vein (BV) were 0.7 cm in both sexes. Regardless of the branching pattern, the MACN could pass over or close (within 0.5 cm) to the ME, BV and BA. Asymmetry in the branching pattern was found in 50% of specimens. Sex but not side differences were observed in some measurement parameters. These data are crucial for not only localizing the MACN during nerve block and graft harvest but also avoiding the nerve injury during surgical procedures.

Aomjai, Damwan; Sithiporn, Agthong; Chavarin, Amarase; Pattarapol, Yotnuengnit; Thanasil, Huanmanop; Vilai, Chentanez.

2014-06-01

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Transposicão da veia gástrica esquerda ou da veia mesentérica inferior como alternativas de revascularizacão portal no transplante ortotópico de fígado Transposition of the left gastric vein or the inferior mesenteric vein as alternatives to portal reconstruction in orthotopic liver transplantation  

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Full Text Available OBJETIVO: Apresentar e discutir indicações e resultados iniciais de duas alternativas técnicas para reconstrução portal em receptores de transplante hepático com veia porta trombosada ou hipoplásica. MÉTODO: São apresentados três casos de transplante hepático em portadores de veia porta imprestável para revascularização do enxerto. Constatada essa inadequação, por ausência de calibre e fluxo mínimos para uma anastomose segura com a veia porta do doador, a veia gástrica esquerda (duas vezes ou a veia mesentérica inferior do receptor foi dissecada, ligada distalmente, transposta e anastomosada com a veia porta do doador. RESULTADOS: Nos três casos, as anastomoses resultaram isodiamétricas, sem torsões ou acotovelamentos, permitindo uma revascularização do enxerto homogênea, adequada do ponto de vista macroscópico e funcional, comprovada pela evolução favorável e por fluxometria Doppler pós-operatória. CONCLUSÕES: Os autores concluem que a veia gástrica esquerda e a veia mesentérica inferior podem se constituir em boas alternativas para a reconstrução portal de receptores de transplante hepático com veia porta inadequada.BACKGROUND: Thrombosis or hypoplasia of the portal vein remains an obstacle in orthotopic liver transplantation. The authors present the technique and initial results of two alternatives to portal vein reconstruction in these cases. METHODS: Three patients who suffered end stage liver disease underwent orthotopic liver transplantation. As the portal vein was inadequate in each case, the left gastric vein (two cases or the inferior mesenteric vein was isolated, tied distally, transposed and anastomosed to the donor portal vein. RESULTS: In all three cases the reperfusion was apparently satisfactory and the postoperative course was uneventful. Doppler ultrasonography and liver function tests confirmed the sufficiency of the portal flow. CONCLUSION: The left gastric vein or the inferior mesenteric vein may be a good alternative to portal reconstruction in liver transplant.

Cláudio Moura Lacerda

2004-08-01

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Basil (Ocimum basilicum Genetic Variability and Viral Disease Assessment in Nigeria  

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Full Text Available The study aims at assessing Basil’s genetic phenotypic variability and viral disease incidence in Nigeria for sustainable pathological interventions. Basil (Ocimum basilicum is important for it’s medicinal and nutritive value. It is highly adaptable as a potential crop in the tropics and could therefore enhance the food security of sub Saharan Africa nations. Germplasm seed evaluation and characterization was therefore carried out from the nationwide National Horticultural Research Institute (NIHORT seed collection survey to expand NIHORT basil genetic base. The field layout was completely randomized design with five replications. The treatments were: O. basilicum, O. gratissimum and the local basil. Treatments were randomly allocated per replication. There were significant phenotypic differences in the O. basilicum variety. These differences were observed in the plant coloration ranging from deep to light purple coloration of stem, leaf, leaf vein and petiole. Our observations also revealed for the first time significant tolerance to Venial Mottle Mosaic Virus (VMMV in the purple colored compared to the green O. basilicum in the early stages of growth till 50% anthesis. This is the first report of this observation in the African continent. Tolerance to VMMV symptoms increased significantly (LSD 5% with purplish coloration. We concluded that inducement of purplish coloration in Basil through breeding might improve tolerance to VMMV and thereby increase market value of Basil with sustainable pathological interventions.

O.D. Ojo

2012-01-01

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Cavo-portal transposition in rat: a new simple model  

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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

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Nutcracker syndrome complicated by left renal vein thrombosis.  

Science.gov (United States)

Isolated renal vein thrombosis is a rare entity. We present a patient whose complaint of flank pain led to the diagnosis of a renal vein thrombosis. In this case, abdominal computed tomography angiography was helpful in diagnosing the nutcracker syndrome complicated by the renal vein thrombosis. Anticoagulation was started and three weeks later, CTA showed complete disappearance of the renal vein thrombosis. To treat the Nutcracker syndrome, we proposed left renal vein transposition that the patient consented to. PMID:24349817

Mallat, Faouzi; Hmida, Wissem; Jaidane, Mehdi; Mama, Nadia; Mosbah, Faouzi

2013-01-01

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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.

2014-03-01

15

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.

16

Varicose Veins and Spider Veins  

Science.gov (United States)

... deep vein thrombosis (a potentially dangerous blood clot). Surface Laser Treatments In some cases, laser treatments can effectively treat spider veins and smaller varicose veins. This technique ...

17

Varicose Veins  

Science.gov (United States)

Varicose veins are swollen, twisted veins that you can see just under the skin. They usually occur in ... of the body. Hemorrhoids are a type of varicose vein. Your veins have one-way valves that help ...

18

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 ... help alleviate the symptoms, treatment may be recommended. Varicose Vein Treatment New techniques allow for a virtually painless ...

19

Partial Transposition on Bipartite System  

International Nuclear Information System (INIS)

Many properties of partial transposition are unclear as yet. Here we carefully consider the number of the negative eigenvalues of ?T (?'s partial transposition) when ? is a two-partite state. There is strong evidence to show that the number of negative eigenvalues of ?T is N(N ? 1)/2 at most when ? is a state in Hilbert space CN CN. For the special case, the 2 × 2 system, we use this result to give a partial proof of the conjecture |?T|T ? 0. We find that this conjecture is strongly connected with the entanglement of the state corresponding to the negative eigenvalue of ?T or the negative entropy of ?

20

Varicose Veins  

Medline Plus

Full Text Available ... companies, including Medicare, will cover varicose vein treatment. Notice how the valves of this vein come together and prevent blood from flowing backward. Notice how the valves of this vein do not ...

 
 
 
 
21

Varicose Veins  

Medline Plus

Full Text Available ... current varicose vein treatment options. Anatomy Valve The heart pumps oxygen-rich blood into a large artery ... delivered, veins carry the blood back to the heart. Unlike arteries, veins are dependent on one-way ...

22

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 ... and any underlying source. If your doctor recommends surgery, the decision whether or not to have the ...

23

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

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On the molecular mechanisms of transposition.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We present a model for transposition that allows a choice between cointegrate formation (replicon fusion) and direct transposition. We propose that initiation of the process occurs by invasion of the target DNA by a single-stranded end of the transposable element. This leads to nicking of one of the DNA strands of the target molecule and ligation of this strand to that of the invading transposon. Transposition then occurs in a processive way by replication of the element from the invading end...

Galas, D. J.; Chandler, M.

1981-01-01

25

Varicose Veins  

Medline Plus

Full Text Available ... use non-invasive ultrasound imaging to find the source of the varicose veins. It is essential that ... to correct the varicose veins and any underlying source. If your doctor recommends surgery, the decision whether ...

26

Varicose Veins  

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Full Text Available ... properly, blood can reverse its flow. This causes increased pressure in the veins, and over time can ... to swell and become bulging, varicose veins. The increased pressure can lead to significant symptoms such as: ...

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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 for informational ...

28

Varicose Veins  

Medline Plus

Full Text Available ... in the affected vein. This is called Endovenous Ablation of the Saphenous Vein. Overall circulation will be ... Some discomfort is normal, especially with the endovenous ablation treatment. Antiinflammatory medication is provided to help with ...

29

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 ...

30

Varicose Veins  

Medline Plus

Full Text Available ... blood can reverse its flow. This causes increased pressure in the veins, and over time can cause ... swell and become bulging, varicose veins. The increased pressure can lead to significant symptoms such as: swelling ...

31

Varicose Veins  

Medline Plus

Full Text Available ... causes increased pressure in the veins, and over time can cause them to swell and become bulging, varicose veins. The increased pressure can lead to significant symptoms such as: swelling ...

32

Varicose Veins  

Medline Plus

Full Text Available ... vein treatment options. Anatomy Valve The heart pumps oxygen-rich blood into a large artery known as ... to the rest of the body. Once the oxygen has been delivered, veins carry the blood back ...

33

Varicose Veins  

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Full Text Available ... risks of current varicose vein treatment options. Anatomy Valve The heart pumps oxygen-rich blood into a large artery ... delivered, veins carry the blood back to the heart. Unlike arteries, veins are dependent on one-way valves to keep blood moving in an upward motion. ...

34

Vein Problems Related to Varicose Veins  

Science.gov (United States)

... this page from the NHLBI on Twitter. Vein Problems Related to Varicose Veins Many vein problems are ... have varicoceles, see your doctor. Other Related Vein Problems Other types of varicose veins include venous lakes, ...

35

What Causes Varicose Veins?  

Science.gov (United States)

... page from the NHLBI on Twitter. What Causes Varicose Veins? Weak or damaged valves in the veins can ... space. These are varicose veins. Normal Vein and Varicose Vein Figure A shows a normal vein with a ...

36

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

37

Mobile DNA transposition in somatic cells  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract It had been long assumed that almost all insertions of mobile DNA elements occurred during germ-cell development rather than in somatic-cell development, but solid evidence for transposition in somatic cells is now accumulating. To add to this evidence, a recent paper in Mobile DNA reports the somatic transposition of a site-specific retrotransposon, R2, into its insertion site in 28S ribosomal DNA in Drosophila embryos. See research article: h...

Kazazian Haig H

2011-01-01

38

Sclerotherapy of Varicose Veins and Spider Veins  

Science.gov (United States)

Sclerotherapy of Varicose Veins and Spider Veins • Overview Sclerotherapy is a minimally invasive treatment used to treat varicose and spider veins. The ... cramps. It is the primary treatment for small varicose veins in the legs. top of page • Preparation You ...

39

Cyclic to Random Transposition Shuffles  

CERN Document Server

Consider a permutation $\\sigma\\in S_n$ as a deck of cards numbered from 1 to $n$ and laid out in a row, where $\\sigma_j$ denotes the number of the card that is in the $j$-th position from the left.\\rm\\ We define two cyclic to random transposition shuffles. The first one works as follows: for $j=1,..., n$, on the $j$-th step transpose the card that was \\it originally\\rm\\ the $j$-th from the left with a random card (possibly itself). The second shuffle works as follows: on the $j$-th step, transpose the card that is \\it currently\\rm\\ in the $j$-th position from the left with a random card (possibly itself). For these shuffles, for each $b\\in[0,1]$, we calculate explicitly the limiting rescaled density function of $x,0\\le x\\le1$, for the probability that a card with a number around $bn$ ends up in a position around $xn$, and for each $x\\in[0,1]$, we calculate the limiting rescaled density function of $b,0\\le b\\le 1$, for the probability that the card in a position around $xn$ will be a card with a number around ...

Pinsky, Ross G

2012-01-01

40

Essential oil from Ocimum basilicum (Omani Basil): a desert crop.  

Science.gov (United States)

The focus of the present study was on the influence of season on yield, chemical composition, antioxidant and antifungal activities of Omani basil (Ocimum basilicum) oil. The present study involved only one of the eight Omani basil varieties. The hydro-distilled essential oil yields were computed to be 0.1%, 0.3% and 0.1% in the winter, spring and summer seasons, respectively. The major components identified were L- linalool (26.5-56.3%), geraniol (12.1-16.5%), 1,8-cineole (2.5-15.1%), p-allylanisole (0.2-13.8%) and DL-limonene (0.2-10.4%). A noteworthy extra component was beta- farnesene, which was exclusively detected in the oil extracted during winter and spring at 6.3% and 5.8%, respectively. The essential oil composition over the different seasons was quite idiosyncratic, in which the principal components of one season were either trivial or totally absent in another. The essential oil extracted in spring exhibited the highest antioxidant activity (except DPPH scavenging ability) in comparison with the oils from other seasons. The basil oil was tested against pathogenic fungi viz. Aspergillus niger, A. fumigatus, Penicillium italicum and Rhizopus stolonifer using a disc diffusion method, and by determination of minimum inhibitory concentration. Surprisingly high antifungal values were found highlighting the potential of Omani basil as a preservative in the food and medical industries. PMID:22164790

Al-Maskri, Ahmed Yahya; Hanif, Muhammad Asif; Al-Maskari, Masoud Yahya; Abraham, Alfie Susan; Al-sabahi, Jamal Nasser; Al-Mantheri, Omar

2011-10-01

 
 
 
 
41

Varicose Veins  

Medline Plus

Full Text Available ... throughout the entire procedure. Heat energy from a laser or radio frequency source is used to painlessly ... no clots have formed in the deep vein system. Risks And Complications Bruising is common, and should ...

42

Varicose Veins  

Medline Plus

Full Text Available ... 06/25/2013 1 The muscles of the legs help push the blood through the veins; the ... symptoms such as: swelling of the ankles or legs, severe pain and aching, and complaints of tired ...

43

Varicose Veins  

Medline Plus

Full Text Available ... disease. Proper testing will give the doctor the information he or she needs to treat your varicose veins, and their source, giving long-lasting results. More recent techniques such ...

44

Varicose Veins  

Science.gov (United States)

... Sign In Cardiology Patient Page Varicose Veins Gregory Piazza , MD, MS From the Cardiovascular Division, Department of ... Harvard Medical School, Boston, MA. Correspondence to Gregory Piazza, MD, MS, Cardiovascular Division, Brigham and Women’s Hospital, ...

45

Varicose Veins  

Medline Plus

Full Text Available ... comfort is monitored throughout the entire procedure. Heat energy from a laser or radio frequency source is ... no clots have formed in the deep vein system. Risks And Complications Bruising is common, and should ...

46

Varicose Veins  

Medline Plus

Full Text Available ... vs050104 Last reviewed: 06/25/2013 4 Summary Patients considering treatment for vein problems should consult with a highly trained surgical specialist who is familiar with all ...

47

Varicose Veins  

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Full Text Available ... the development of varicose veins. Pregnancy, obesity, hormonal influences, and environmental factors, such as prolonged sitting or ... procedure. Increasing redness and tenderness in a particular area should be reported to the doctor’s office for ...

48

Varicose Veins  

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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 ...

49

Varicose Veins  

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Full Text Available ... throughout the entire procedure. Heat energy from a laser or radio frequency source is used to painlessly ... doctor the information he or she needs to treat your varicose veins, and their source, giving long- ...

50

Varicose Veins  

Medline Plus

Full Text Available ... such as: swelling of the ankles or legs, severe pain and aching, and complaints of tired legs. Skin ... form in the veins causing hard lumps and severe pain. This is known as “superficial phlebitis.” This is ...

51

Varicose Veins  

Medline Plus

Full Text Available ... falling back towards the feet. Symptoms And Their Causes When the one-way valves fail to close properly, blood can reverse its flow. This causes increased pressure in the veins, and over time ...

52

Varicose Veins  

Medline Plus

Full Text Available ... of varicose veins. Pregnancy, obesity, hormonal influences, and environmental factors, such as prolonged sitting or standing, can ... medication is provided to help with this side effect. The pain should not be so intense that ...

53

Varicose Veins  

Medline Plus

Full Text Available ... the type of clot that doctors worry will travel to your heart, lungs, or brain. It is ... clots have formed in the deep vein system. Risks And Complications Bruising is common, and should resolve ...

54

Permanent magnet machine with windings having strand transposition  

Science.gov (United States)

This document discusses, among other things, a stator with transposition between the windings or coils. The coils are free from transposition to increase the fill factor of the stator slots. The transposition at the end connections between an inner coil and an outer coil provide transposition to reduce circulating current loss. The increased fill factor reduces further current losses. Such a stator is used in a dual rotor, permanent magnet machine, for example, in a compressor pump, wind turbine gearbox, wind turbine rotor.

Qu, Ronghai (Clifton Park, NY); Jansen, Patrick Lee (Scotia, NY)

2009-04-21

55

Mobile DNA transposition in somatic cells  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract It had been long assumed that almost all insertions of mobile DNA elements occurred during germ-cell development rather than in somatic-cell development, but solid evidence for transposition in somatic cells is now accumulating. To add to this evidence, a recent paper in Mobile DNA reports the somatic transposition of a site-specific retrotransposon, R2, into its insertion site in 28S ribosomal DNA in Drosophila embryos. See research article: http://www.mobilednajournal.com/content/2/1/11

Kazazian Haig H

2011-09-01

56

Experience with alternate sources of venous inflow in the meso-Rex bypass operation: the coronary and splenic veins.  

Science.gov (United States)

The meso-Rex bypass procedure has been used to treat patients with portal hypertension from extrahepatic portal vein obstruction. This report describes modifications of this procedure in 5 patients. Either the splenic or coronary vein was used as the venous inflow point, and the bypass was performed either directly through transposition of the vein or with the use of a venous conduit. PMID:17618880

Chiu, Bill; Pillai, Srikumar B; Sandler, Anthony D; Superina, Riccardo A

2007-07-01

57

Basil (Ocimum basilicum) Genetic Variability and Viral Disease Assessment in Nigeria  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The study aims at assessing Basil’s genetic phenotypic variability and viral disease incidence in Nigeria for sustainable pathological interventions. Basil (Ocimum basilicum) is important for it’s medicinal and nutritive value. It is highly adaptable as a potential crop in the tropics and could therefore enhance the food security of sub Saharan Africa nations. Germplasm seed evaluation and characterization was therefore carried out from the nationwide National Horticultural Research Insti...

Ojo, O. D.; Adebayo, O. S.; Olaleye, O.; Orkpeh, U.

2012-01-01

58

Varicose Veins  

Medline Plus

Full Text Available ... the decision whether or not to have the surgery is also yours. This reference summary will help you understand the benefits and risks of current varicose vein treatment options. Anatomy Valve The heart pumps oxygen-rich blood into a large artery ...

59

Varicose Veins  

Medline Plus

Full Text Available ... segments of the dilated veins are removed through 1-2 mm openings, similar to the size of a ... as prescribed. Heavy exercise should be avoided for one to two weeks. Avoid hot tubs, pool, and tub baths ...

60

Characterization of Phenylpropene O-Methyltransferases from Sweet Basil  

Science.gov (United States)

Some basil varieties are able to convert the phenylpropenes chavicol and eugenol to methylchavicol and methyleugenol, respectively. Chavicol O-methyltransferase (CVOMT) and eugenol O-methyltransferase (EOMT) cDNAs were isolated from the sweet basil variety EMX-1 using a biochemical genomics approach. These cDNAs encode proteins that are 90% identical to each other and very similar to several isoflavone O-methyltransferases such as IOMT, which catalyzes the 4?-O-methylation of 2,7,4?-trihydroxyisoflavanone. On the other hand, CVOMT1 and EOMT1 are related only distantly to (iso)eugenol OMT from Clarkia breweri, indicating that the eugenol O-methylating enzymes in basil and C. breweri evolved independently. Transcripts for CVOMT1 and EOMT1 were highly expressed in the peltate glandular trichomes on the surface of the young basil leaves. The CVOMT1 and EOMT1 cDNAs were expressed in Escherichia coli, and active proteins were produced. CVOMT1 catalyzed the O-methylation of chavicol, and EOMT1 also catalyzed the O-methylation of chavicol with equal efficiency to that of CVOMT1, but it was much more efficient in O-methylating eugenol. Molecular modeling, based on the crystal structure of IOMT, suggested that a single amino acid difference was responsible for the difference in substrate discrimination between CVOMT1 and EOMT1. This prediction was confirmed by site-directed mutagenesis, in which the appropriate mutants of CVOMT1 (F260S) and EOMT1 (S261F) were produced that exhibited the opposite substrate preference relative to the respective native enzyme. PMID:11884690

Gang, David R.; Lavid, Noa; Zubieta, Chloe; Chen, Feng; Beuerle, Till; Lewinsohn, Efraim; Noel, Joseph P.; Pichersky, Eran

2002-01-01

 
 
 
 
61

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)

62

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

63

Varicose vein - noninvasive treatment  

Science.gov (United States)

... vein. The vein will harden and then disappear. Laser treatment can be used on the surface of the skin. Small bursts of light make small varicose veins disappear. Phlebectomy treats surface varicose veins. Very small cuts are made ...

64

Association Rule Mining by Block Scattered Transposition  

Directory of Open Access Journals (Sweden)

Full Text Available Association Rule Mining technique is used to discover the interesting association or correlation among a large set of data items. It plays an important role in generating frequent itemsets from large databases. The Association Rule Mining algorithms such as Apriori, FP-Growth requires repeated scans over the entire database. All the input/output overheads that are being generated during repeated scanning the entire database decrease the performance of CPU, memory and I/O overheads. In this paper, we have proposed An Effectual Generalized Mesh Transposition Algorithm (EGMTA for frequent itemsets generation. Our algorithm considers transactional dataset as Matrix and Block Scattered Matrix Transposition is applied on generalized transactional dataset. The CPU and I/O overhead can be reduced in our proposed algorithm and it is much faster than other Association Rule Mining algorithms.

Gurudatta Verma,Vinti Nanda

2012-05-01

65

Spatial transposition gradients in visual working memory.  

Science.gov (United States)

In list memory, access to individual items reflects limits of temporal distinctiveness. This is reflected in the finding that neighbouring list items tend to be confused most often. This article investigates the analogous effect of spatial proximity in a visual working-memory task. Items were presented in different locations varying in spatial distance. A retro-cue indicated the location of the item relevant for the subsequent memory test. In two recognition experiments, probes matching spatially close neighbours of the relevant item led to more false alarms than probes matching distant neighbours or non-neighbouring memory items. In two probed-recall experiments, one with simultaneous, the other with sequential memory item presentation, items closer to the cued location were more frequently chosen for recall than more distant items. These results reflect a spatial transposition gradient analogous to the temporal transposition gradient in serial recall and challenge fixed-capacity models of visual working memory (WM). PMID:23663175

Rerko, Laura; Oberauer, Klaus; Lin, Hsuan-Yu

2014-01-01

66

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

67

Antibacterial activity of lemon, caraway and basil extracts on Listeria spp.  

Directory of Open Access Journals (Sweden)

Full Text Available Commercial extracts of three spices (lemon, caraway and basil against Listeria monocytogenes, L. innocua and L. welshimeri were investigated using disc diffusion method. Lemon and basil extracts inhibited all the organisms at the level of ? 5 ?l (lemon and 20 ?l (basil. These extracts produced inhibitory zones of 9-19 mm (lemon and 8-11.5 mm (basil. The extract of caraway showed activity only against L. innocua at the highest level (20 ?l, producing an inhibitory zone of 14.7 mm. Generally, the lemon extract was the most effective. This extract exhibited greater inhibitory activity against L. monocytogenes, while the basil extract had the strongest effect on L. welshimeri. [Projekat Ministarstva nauke Republike Srbije, br. TR 31017

Dimi? Gordana R.

2012-01-01

68

Gastric transposition in infants and children.  

Science.gov (United States)

The loss of esophageal length in long-gap esophageal atresia or obliteration of the esophageal lumen due to stricture may require major operative reconstruction. A number of procedures have been developed to allow anatomic replacement of the esophagus. The gastric transposition requires a single cervical anastomosis and uses a gastric conduit with excellent blood supply. This review illustrates the procedure and discusses its indications, planning, and outcome. PMID:20878410

Cowles, Robert A; Coran, Arnold G

2010-12-01

69

Intestinal iron transfer after ileojejunal transposition.  

Science.gov (United States)

Little is known on how longitudinal differences in intestinal iron absorption develop and to what extent distal segments can adapt to a more proximal location after surgical intervention. Therefore, 3 weeks after ileojejunal transposition in rats adaptational changes of intestinal iron transfer were measured together with those of glucose and water transfer, intestinal dry weight and villus surface. In vitro iron transfer (Fisher-Parsons technique) was significantly increased in transposed segments as compared to ileal controls, when related to intestinal length. Jejunal values were not reached, though, which was confirmed by corresponding in vivo results. Increases in intestinal mass which are known to be caused by villus hyperplasia were closely correlated to increases in iron transfer after ileojejunal transposition. Thus, the increased iron transfer might partly be due to an increased number of enterocytes. In addition, transposed enterocytes took up jejunal characteristics regarding the ratio between transferred iron and water quantities which significantly increased the serosal 59Fe concentration as compared to ileal segments. Similar changes were also observed for glucose. Therefore, the adaptation of intestinal 59Fe transfer after ileojejunal transposition seems to be part of a more general adaptation process, essential parts of which are likely to be located in the brush border. PMID:1812044

Schümann, K; Elsenhans, B; Forth, W; Schroeder, P

1991-01-01

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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

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Effects of biocides on chlorophyll contents of detached basil leaves  

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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

72

What Are Varicose Veins?  

Science.gov (United States)

... Main Page The Pink Locker Society What Are Varicose Veins? KidsHealth > Kids > Health Problems of Grown-Ups > Q & ... why veins look purple or blue. What Causes Varicose Veins? It's a lot of work to move all ...

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Nydiagnosticeret kongenit transposition hos en 76-årig 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

Pig transgenesis by Sleeping Beauty DNA transposition  

DEFF Research Database (Denmark)

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. Göttingen minipigs expressing green fluorescent protein are produced by transgenesis with DNA transposon vectors carrying the transgene driven by the human ubiquitin C promoter. These animals carry multiple copies (from 8 to 13) of the transgene and show systemic transgene expression. Transgene-expressing pigs carry both transposase-catalyzed insertions and at least one copy of randomly inserted plasmid DNA. Our findings illustrate critical issues related to DNA transposon-directed transgenesis, including coincidental plasmid insertion and relatively low Sleeping Beauty transposition activity in porcine fibroblasts, but also provide a platform for future development of porcine disease models using the Sleeping Beauty gene insertion technology.

Jakobsen, Jannik E.; Li, Juan

2011-01-01

75

Rapid Staining Method to Detect and Identify Downy Mildew (Peronospora belbahrii in Basil  

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Full Text Available Premise of the study: Demand for fresh-market sweet basil continues to increase, but in 2009 a new pathogen emerged, threatening commercial field/greenhouse production and leading to high crop losses. This study describes a simple and effective staining method for rapid microscopic detection of basil downy mildew (Peronospora belbahrii from leaves of basil (Ocimum basilicum. Methods and Results: Fresh leaf sections infected with P. belbahrii were placed on a microscope slide, cleared with Visikol™, and stained with iodine solution followed by one drop of 70% sulfuric acid. Cell walls of the pathogen were stained with a distinct coloration, providing a high-contrast image between the pathogen and plant. Conclusions: This new staining method can be used successfully to identify downy mildew in basil, which then can significantly reduce its spread if identified early, coupled with mitigation strategies. This technique can facilitate the control of the disease, without expensive and specialized equipment.

Adolfina R. Koroch

2013-07-01

76

Stereoselective oxidation of racemic 1-arylethanols by basil cultured cells of Ocimum basilicum cv. Purpurascens.  

Science.gov (United States)

The biotransformation of racemic 1-phenylethanol (30 mg) with plant cultured cells of basil (Ocimum basilicum cv. Purpurascens, 5 g wet wt) by shaking 120 rpm at 25 degrees C for 7 days in the dark gave (R)-(+)-1-phenylethanol and acetophenone in 34 and 24% yields, respectively. The biotransformation can be applied to other 1-arylethanols and basil cells oxidized the (S)-alcohols to the corresponding ketones remaining the (R)-alcohols in excellent ee. PMID:18060603

Itoh, Ken-ichi; Nakamura, Kaoru; Utsukihara, Takamitsu; Sakamaki, Hiroshi; Horiuchi, C Akira

2008-05-01

77

Genetic diversity and inheritance of volatile oil constituents in basil (Ocimum spp. - Lamiaceae)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Essential oils extracted from basil (Ocimum spp.) are used to flavor foods, oral products, in fragrances, and in traditional medicines. The genus Ocimum contains around 30 species native to the tropics and subtropics, with species cultivated in temperate regions. Taxonomy of basil Ocimum is complicated by inter- and intra-specific hybridization, and the existence of numerous cultivars and chemotypes within species that do not differ significantly in morphology. We hypothesized that volatile o...

Vieira, Roberto Fontes

1999-01-01

78

Recto-vaginal/urethral fistula: Repair with gracilis muscle transposition  

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Full Text Available This study was designed to assess the efficacy of gracilis muscle transposition in repairing rectovaginal and rectourethral fistula. All patients had fecal diversion as a preliminary or concurrent step to fistula repair. Success was defined as healed fistula after stoma closure. Results: Six females and four males underwent gracilis muscle transposition from 1999 to 2006. Gracilis muscle transposition is a viable option for repairing fistulas between the urethra, vagina and the rectum, especially after failed perineal or trans-anal repair. It is associated with low morbidity and good success rate. Underlying Crohn’s disease and previous radiation are associated with poor prognosis.

Goldman Gideon

2006-01-01

79

Transposition of Domain Knowledge into Educational Games  

DEFF Research Database (Denmark)

Starting from Rogoff’s (1990) theory of apprenticeship in thinking and Apter’s (1987) reversal theory, this paper discusses the formulation of PlayDT (Playful Domain Transposition), a new approach to support the transposition of complex concepts, from different knowledge domains, into playful interactions, through the design of interactive media. PlayDT aims at facilitating the creation of a creative and easy understandable mapping between knowledge and interaction within the game. Multiple representations are encouraged, so to allow learners to express their own preferences, regarding their play experience. This study is based on reflections on three design-oriented research projects. The first one is MicroCulture (?C), a mixed-reality game, aimed at supporting learning of historical processes during guided tours in museums; it is targeted to primary school children. ?C was developed through a participatory design process, involving task-supported interviews and co-design workshops with children between 9 and 12. Among the findings, a strategy to map knowledge into interactions emerged, together with rich insights about children’s different approaches to play. In an attempt to evaluate the knowledge mapping, we designed PrimeSlaughter, a computer game aimed at supporting learning of prime numbers and factorization, for later primary and early secondary school pupils; the same domain concepts were mapped into two play styles in the game. In this study, we intend to go further in our formulation of the PlayDT approach, through another design study, aimed at creating a game to support learning of the Fourier Transform. In order to generalize further the mapping approach, a participatory workshop was conducted with university students, who provided inspirations to map the Fourier Transform into different games and various play styles. Reflections on these studies provide a solid grounding to define the PlayDT approach, its different stages, and implications for learning practice.

Marchetti, Emanuela; Jensen, Kristoffer

2014-01-01

80

Transpositionally active episomal hAT elements  

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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

 
 
 
 
81

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

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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

82

Universal platform for quantitative analysis of DNA transposition  

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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

83

Aberrant umbilical vein  

International Nuclear Information System (INIS)

In a female premature baby an aberrant umbilical vein was identified after catheterization of the umbilical vessels. This rare variation of the umbilical vessels consists of a connection between the umbilical vein and the inferior vena cava. (orig.)

84

Changes in the chemical composition of basil caused by different drying procedures.  

Science.gov (United States)

Basil (Ocimum basilicum L.) leaves were dried using a microwave oven at atmospheric pressure or two traditional methods: air-drying at 50 degrees C and freeze-drying. The microwave-drying was carried out at different powers and times on raw basil leaves, while for air and freeze-drying techniques, both raw and blanched leaves were used. The raw and dried basil was analyzed for selected aroma compounds by gas chromatography/mass spectrometry-selected-ion-monitoring, the chlorophyll a and b by HPLC and the color by a reflected-light colorimeter. For dried samples microwaved for 1 min at 270, 2 min at 440, 1 min at 650, and 1 min at 1100 W, the percentage retentions of the characteristic volatile compounds (eucalyptol, linalool, eugenol, and methyl eugenol) were higher than in the samples dried by traditional methods, with the exception of freeze-dried unblenched basil. Microwave drying allowed a larger retention of chlorophyll pigments than air-drying and freeze-drying (with or without blanching) and preserved the color of the raw basil. Microwave drying requires a much shorter treatment and implied the simultaneous blanching of the material. PMID:12769527

Di Cesare, Luigi Francesco; Forni, Elisabetta; Viscardi, Daniela; Nani, Renato Carlo

2003-06-01

85

Driving DNA transposition by lentiviral protein transduction  

Science.gov (United States)

Gene vectors derived from DNA transposable elements have become powerful molecular tools in biomedical research and are slowly moving into the clinic as carriers of therapeutic genes. Conventional uses of DNA transposon-based gene vehicles rely on the intracellular production of the transposase protein from transfected nucleic acids. The transposase mediates mobilization of the DNA transposon, which is typically provided in the context of plasmid DNA. In recent work, we established lentiviral protein transduction from Gag precursors as a new strategy for direct delivery of the transposase protein. Inspired by the natural properties of infecting viruses to carry their own enzymes, we loaded lentivirus-derived particles not only with vector genomes carrying the DNA transposon vector but also with hundreds of transposase subunits. Such particles were found to drive efficient transposition of the piggyBac transposable element in a range of different cell types, including primary cells, and offer a new transposase delivery approach that guarantees short-term activity and limits potential cytotoxicity. DNA transposon vectors, originally developed and launched as a non-viral alternative to viral integrating vectors, have truly become viral. Here, we briefly review our findings and speculate on the perspectives and potential advantages of transposase delivery by lentiviral protein transduction. PMID:25057443

Cai, Yujia; Mikkelsen, Jacob Giehm

2014-01-01

86

In vitro Anti-Bacterial Activity of Sweet Basil Fractions Against Helicobacter pylori  

Directory of Open Access Journals (Sweden)

Full Text Available In tihis study, the effect of sweet basil fractions on growth of H. pylori was studied by filter paper Disc Diffusion Method (DDM on egg yolk emulsion agar. Aqueous fraction had no activity against nine tested clinical isolates. Methanol, n-hexane and butanol fractions showed in vitro anti Helicobacter pylori effects. There are no differences (p>0.05 among anti Helicobacter pylori activity of methanol, n-hexane and butanol fractions at concentration of 1 mg, but in lower concentrations, methanol and n-hexane fractions had more antibacterial activity than butanol fraction based on Duncan test. Minimum Inhibitory Concentrations (MICs of methanol, n-hexane and butanol fractions from leaves of sweet basil were 39.1, 41 and 117.2 ?g disc-1, respectively. This study demonstrated that methanol, n-hexane and butanol fractions of sweet basil inhibited the growth of H. pylori strains in vitro.

Mahboobeh Nakhaei Moghaddam

2009-01-01

87

Different Points of View Concerning the Didactic Transposition  

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Full Text Available The present article treats the concept of Didactic Transposition, taking as reference the work of Yves Chevallard, La transposición didáctica: del saber sabio al saber enseñado (2005. We compared the adduction of the concept in several works, such as thesis, dissertations and articles, and discussed the multiple impressions concerning the process of didactic transposition. These papers show that the conceptualizations are not well defined, entailing dubiousness and discussions. Some differences accrue from different areas of science, distinct of mathematics, others are inherent on the original ideas in Chevallard (2005, paper that served as bibliographical reference for the majority of the studied works.

Késia Caroline Ramires Neves

2011-10-01

88

Sorting of Permutations by Cost-Constrained Transpositions  

CERN Document Server

We address the problem of finding the minimum decomposition of a permutation in terms of transpositions with non-uniform cost. For arbitrary non-negative cost functions, we describe polynomial-time, constant-approximation decomposition algorithms. For metric-path costs, we describe exact polynomial-time decomposition algorithms. Our algorithms represent a combination of Viterbi-type algorithms and graph-search techniques for minimizing the cost of individual transpositions, and dynamic programing algorithms for finding minimum cost cycle decompositions. The presented algorithms have applications in information theory, bioinformatics, and algebra.

Farnoud, Farzad

2010-01-01

89

Negative eigenvalues of partial transposition of arbitrary bipartite states  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The partial transposition of a two-qubit state has at most one negative eigenvalue and all the eigenvalues lie in [-1/2,1]. In this Brief Report, we extend this result by Sanpera et al. [A. Sanpera, R. Tarrach and G. Vidal, Phys. Rev. A 58, 826 (1998)] to arbitrary bipartite states. We show that partial transposition of an $m\\otimes n$ state can not have more than (m-1)(n-1) number of negative eigenvalues. Low-dimensional states have been studied to show the tightness of thi...

Rana, Swapan

2013-01-01

90

Diversity in chemical composition and yield of essential oil from two Iranian landraces of sweet basil  

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Full Text Available Ocimum basilicum L. belongs to the family Lamiaceae is an herb that is extensively cultivated in some countries. Areal parts, especially leaves of sweet basil are widely used to enhance the flavour of foods such as salads, pasta, tomato products, vegetables, pizza, meat, soups, marine foods, confectioneries and other products. Essential oil yield and chemical components of two Iranian landraces of sweet basil including “Purple” and “Green” grown south-central of Iran (Isfahan province were investigated. The hydro-distillated oils were analyzed by GC-MS. The oil yields were obtained from the aerial of Purple with 0.56 ml/100 g dry matter and the aerial of Green with 0.48 ml/100 g dry matter. Results indicated significant differences (p < 0.01 among the aerial for the main constituents in the essential oil from two Iranian landraces of sweet basil. The major constituents of the essential oil from the aerial of Purple landrace were methyl chavicol or estragol (63.32% and linalool (7.96%. The main compositions of the essential oil from the aerial of Green landrace were methyl chavicol (31.82%, geranial (24.60% and neral (22.65%. Genarlly, a comparison of our results with the previous reports suggests differences in the essential oil compositions and oil yield of the plant material could be attributed to genetic diversity in two Iranian landraces of sweet basil.

Ghasemi Pirbalouti Abdollah

2014-01-01

91

Source-separated municipal solid waste compost application to Swiss chard and basil.  

Science.gov (United States)

A growth room experiment was conducted to evaluate the bioavailability of Cu, Mn, Zn, Ca, Fe, K, Mg, P, S, As, B, Cd, Co, Cr, Hg, Mo, Na, Ni, Pb, and Se from a sandy loam soil amended with source-separated municipal solid waste (SSMSW) compost. Basil (Ocimum basilicum L.) and Swiss chard (Beta vulgaris L.) were amended with 0, 20, 40, and 60% SSMSW compost to soil (by volume) mixture. Soils and compost were sequentially extracted to fractionate Cu, Pb, and Zn into exchangeable (EXCH), iron- and manganese-oxide-bound (FeMnOX), organic-matter (OM), and structurally bound (SB) forms. Overall, in both species, the proportion of Cu, Pb, and Zn levels in different fractions followed the sequence: SB > OM > FeMnOX > EXCH for Cu; FeMnOX = SB > OM > EXCH for Pb; and FeMnOX > SB = EXCH > OM for Zn. Application of SSMSW compost increased soil pH and electrical conductivity (EC), and increased the concentration of Cu, Pb, and Zn in all fractions, but not EXCH Pb. Basil yields were greatest in the 20% treatment, but Swiss chard yields were greater in all compost-amended soils relative to the unamended soil. Basil plants in 20 or 40% compost treatments reached flowering earlier than plants from other treatments. Additions of SSMSW compost to soil altered basil essential oil, but basil oil was free of metals. The results from this study suggest that mature SSMSW compost with concentrations of Cu, Pb, Mo, and Zn of 311, 223, 17, and 767 mg/kg, respectively, could be used as a soil conditioner without phytotoxic effects on agricultural crops and without increasing the normal range of Cu, Pb, and Zn in crop tissue. However, the long-term effect of the accumulation of heavy metals in soils needs to be carefully considered. PMID:15074805

Zheljazkov, Valtcho D; Warman, Philip R

2004-01-01

92

Comparison of microbial diversity of edible flowers and basil grown with organic versus conventional methods.  

Science.gov (United States)

The consumption and use of edible flowers as food is growing; however, no study has been conducted to evaluate their role in the cause of food-borne illness or in food safety. Recent food-borne outbreaks traced to fresh herbs have raised concern about their processing and handling. Basil, one of the most commonly used fresh herbs, has been identified as a source of food-borne illness. Baseline assessments of microflora were performed, and the microbial diversity between growing methods (organic vs. conventional) was compared. DNA sequencing was used to identify the microbial flora present on fresh edible flower and basil samples. The most predominant species identified were Enterobacter hormaechei (10%), Acinetobacter calcoaceticus (10%), Enterobacter ludwigii (10%), Enterobacter asburiae (6%), and Enterobacter cowanii (6%). Pseudomonas aeruginosa (6%), Salmonella enterica (6%), and Bacillus amyloliquefaciens (2%) were also isolated. Phylogenetic analysis showed that most species of isolated bacteria belonged to the phyla Gammaproteobacteria (81.2%) and Firmicutes (18.8%). Statistical analysis, diversity index for species richness, and lineage-per-time plots showed that for basil, organically grown samples had a higher microbial diversity than conventionally grown samples. Edible flowers and basil are often grown using organic methods and are commonly consumed raw without any washing or cooking, to preserve aesthetic value, but these practices may pose a potential risk for food-borne illness. The baseline assessment, together with phylogenetic and statistical analyses, indicated possible microbial contamination in edible flowers and basil. The use of statistical estimation of molecular diversity based on the 16S rRNA sequences and lineage-per-time plots with phylogenetic analysis well served as a means for comparing microbial diversity in food samples between the growing methods (organic vs. conventional). PMID:21076485

Wetzel, Kaedra; Lee, Jiyoung; Lee, Chang Soo; Binkley, Margaret

2010-11-01

93

Seed Germination and Early Growth Responses of Hyssop, Sweet Basil and Oregano to Temperature Levels  

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Full Text Available The objectives of this survey were to determine the effect of temperature on germination and seedling growth of Hyssop (Hyssopus officinalis L., Sweet basil (Ocimum basilicum L. and Oregano (Origanum vulgare L. (Lamiaceae family as well as comparing species regarding germination behavior and growth characteristics. Seeds were germinated on a temperature-gradient bar varying between 5 and 40 °C (with 5 °C intervals. Results indicated that the highest germination percentage of hyssop (92-98%, sweet basil (86-90% and oregano (74-77% occurred at 20-30 °C, 25-30 °C and 20-30 °C, respectively; therefore, moderate and warm temperatures are proper for germination of all species. In all species the maximum germination rate obtained at 30 °C. Among all species, Day 10 % of Sweet basil Germination had the lowest value, which indicates faster germination. The cardinal temperatures (base, optimum and ceiling or maximum were estimated by the segmented model. Base temperature (Tb was calculated for hyssop, sweet basil and oregano as 3.42, 5.70 and 5.46 °C, respectively. Optimal temperature (To calculated for all species was approximately 30°C, So warmer temperatures are much more proper for them. The species showed different maximum temperatures (Tm from 42.91 (Oregano to 48.05 °C (Hyssop. In Hyssop and Sweet basil optimum growth of seedlings were observed at 30°C while Oregano reached its best growth at 25°C. The difference between maximum and minimum temperatures of germination knowing as temperature range (TR index could show adaptation capability to broad sites for planting and domestication. Regarding this index Hyssop stood in the first place.

Sajad MIJANI

2013-12-01

94

Living with Deep Vein Thrombosis  

Science.gov (United States)

... Vein Thrombosis » Living With Deep Vein Thrombosis Explore Deep Vein Thrombosis What Is ... Other Names Causes Who Is at Risk Signs & Symptoms Diagnosis Treatments Prevention Living With Clinical Trials Links Spanish Version ...

95

How Are Varicose Veins Treated?  

Science.gov (United States)

... page from the NHLBI on Twitter. How Are Varicose Veins Treated? Varicose veins are treated with lifestyle changes and medical procedures. ... relieve symptoms, prevent complications, and improve appearance. If varicose veins cause few symptoms, your doctor may simply suggest ...

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One-stage repair of perineal hypospadias and scrotal transposition.  

Science.gov (United States)

Our experience with one-stage repair of severe perineal hypospadias and scrotal transposition is described. In essence the urethra is formed by our (extended parameatal) wing flap-flipping method, while the scrotum is normally repositioned with skin closure. Comparison is made with other repairs, while the safety of the extended parameatal pedicle flap is stressed. PMID:6529948

Koyanagi, T; Nonomura, K; Gotoh, T; Nakanishi, S; Kakizaki, H

1984-01-01

97

Anterior segment ischemia in a young myopic following transposition surgery  

Directory of Open Access Journals (Sweden)

Full Text Available A 35-year-old Kuwaiti lady, who is a known myope, developed severe anterior segment ischemia following extra-ocular muscle transposition surgery. The patient was treated with topical and systemic steroids. Her best corrected visual acuity after complete resolution of the inflammation was 20/40. She also developed pupillary mydriasis and anterior lens changes.

Al Enezi Mona

2008-01-01

98

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

99

Transposition of Anterior Choroidal Artery and Posterior Communicating Artery Origin  

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The anterior choroidal artery has several kinds of variations. Among them, the transposition of anterior choroidal artery and posterior communicating artery origins has been extremely rare. We report a case with cerebral aneurysm arising from posterior communicating artery which origin was distal to the anterior choroidal artery and review the relevant literature.

Choi, Chan Young; Lee, Chae Heuck

2012-01-01

100

Transposition of anterior choroidal artery and posterior communicating artery origin.  

Science.gov (United States)

The anterior choroidal artery has several kinds of variations. Among them, the transposition of anterior choroidal artery and posterior communicating artery origins has been extremely rare. We report a case with cerebral aneurysm arising from posterior communicating artery which origin was distal to the anterior choroidal artery and review the relevant literature. PMID:23115668

Choi, Chan Young; Lee, Chae Heuck

2012-09-01

 
 
 
 
101

Paget-von Schrötter syndrome: upper extremity deep vein thrombosis after heavy exercise.  

Science.gov (United States)

We present a 52-year-old man with swelling, tightness, heaviness, and redness in the right half of his neck, face, upper arm, and right precordial area after repetitive exercises. No etiological factors such as trauma, venous catheter, malignancy, hematologic disorder history, or any chronic disease were noted. A Doppler ultrasound of the upper extremities was performed, which showed a complete thrombotic occlusion in the right internal jugular vein, partial occlusion in the right brachiocephalic and subclavian veins with thrombosis, and chronic thrombosis occluding the left brachial vein. Complete blood cell count, coagulation profiles, and rheumatologic and tumor markers were normal. The patient reported that he had taken spinning classes for the last 18 months, and for the past 4 days he reported that he had done his spinning exercises harder and more frequently. The swelling and redness regressed partially on the 3rd day of therapy with enoxaparin sodium. In the first month follow-up visit we performed a control Doppler ultrasound and it showed partially thrombosed areas in the right brachiocephalic and internal jugular veins. Also, chronic thrombosis persisted in the left brachial and basilic veins. Computed tomography images showed no evidence for malignancy and some sections showed filling defects in the vena cava superior, which was attributed to thrombotic materials. The patient was successfully treated with anticoagulants for 6 months. PMID:22951853

Say?n, Ahmet; Güngör, Hasan; Bilgin, Murat; Ertürk, Umit

2012-06-01

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.

103

Umbilical and portal vein calcification following umbilical vein catheterization  

International Nuclear Information System (INIS)

Calcifications of the umbilical vein and intrahepatic branches of the portal vein developed in a newborn who had inserted an umbilical vein catheter for 11 days postnatally. The calcified intrahepatic portal veins can still be demonstrated sonographically at the age of three years, whereby these calcifications were no longer detectable radiologically. (orig.)

104

Characterisation of organic and conventional sweet basil leaves using chromatographic and flow-injection mass spectrometric (FIMS) fingerprints combined with principal component analysis.  

Science.gov (United States)

Sweet basil, Ocimum basilicum, is one of the most important and wildly used spices and has been shown to have antioxidant, antibacterial, and anti-diarrheal activities. In this study, high performance liquid chromatographic (HPLC) and flow-injection mass spectrometric (FIMS) fingerprinting techniques were used to differentiate organic and conventional sweet basil leaf samples. Principal component analysis (PCA) of the fingerprints indicated that both HPLC and FIMS fingerprints could effectively detect the chemical differences in the organic and conventional sweet basil leaf samples. This study suggested that the organic basil sample contained greater concentrations of almost all the major compounds than its conventional counterpart on a per same botanical weight basis. The FIMS method was able to rapidly differentiate the organic and conventional sweet basil leaf samples (1min analysis time), whereas the HPLC fingerprints provided more information about the chemical composition of the basil samples with a longer analytical time. PMID:24518341

Lu, Yingjian; Gao, Boyan; Chen, Pei; Charles, Denys; Yu, Liangli Lucy

2014-07-01

105

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

106

[Echocardiographic monitoring of atrial septostomy in the transposition of the great arteries].  

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In seven consecutive cases of transposition of the great arteries balloon atrial septostomy was performed under the sole echocardiographic guidance. The catheter, introduced into either the saphenous, femoral or umbilical vein, was advanced into the inferior vena cava, then into the right atrium, and, through the patent foramen ovale, into the left atrium. The correct location of the tip of the catheter within the left atrial body was easily identified by two-dimensional echocardiography, with a four chamber view from the subcostal approach. Under echocardiographic control alone the inflated balloon was then suddenly withdrawn into the right atrium according to the Rashkind's technique. The procedure was repeated 3 to 5 times. The balloon was inflated with 2 to 3.5 ml of saline solution. The septostomy was deemed to be adequate when the echocardiographic images revealed an atrial septal defect at least 5 mm in size and an increased flapping motion of the inferior rim of the atrial septum. With this technique the risks of complications due to an incorrect location of the catheter are minimized and the outcome of the procedure can be immediately evaluated by measuring the size of the atrial septal defect. PMID:6714553

Carminati, M; Valsecchi, O; Borghi, A; Balduzzi, A; Quattrociocchi, M; De Tommasi, S M; Bergamaschi, L; Invernizzi, G

1984-02-01

107

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

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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

108

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

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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

109

Characterization of Geraniol Synthase from the Peltate Glands of Sweet Basil1  

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The monoterpene fraction of the lemon-scented sweet basil (Ocimum basilicum) cv Sweet Dani consists mostly of citral (a mixture of geranial and neral), with lower levels of geraniol and nerol. These compounds are stored in the peltate glands found on the leaf epidermis. Younger leaves, which have a higher density of such glands, also have a higher content of monoterpenes than older leaves. Geraniol synthase (GES) activity, generating geraniol from geranyl diphosphate, was shown to be localized exclusively or almost exclusively to glands. GES activity resides in a homodimeric protein that was purified to near homogeneity. Basil GES requires Mn2+ as a divalent metal cofactor for activity and produces only geraniol from geranyl diphosphate. Km values of 21 and 51 ?m were obtained for geranyl diphosphate and Mn2+, respectively. In the presence of 18O-labeled water, GES catalyzed the formation of 18O-geraniol from geranyl diphosphate, indicating that the reaction mechanism of GES is similar to that of other monoterpene synthases and is different from the action of phosphatases. A GES cDNA was isolated based on analysis of a glandular trichome expressed sequence tag database, and the sequence of the protein encoded by this cDNA shows some similarity to sequences of other terpene synthases. The expression of the GES cDNA in Escherichia coli resulted in a protein with enzymatic activity essentially identical to that of plant-purified GES. RNA gel-blot analysis indicated that GES is expressed in glands but not in leaves of basil cv Sweet Dani, whose glands contain geraniol and citral, and not in glands or leaves of another basil variety that makes other monoterpenes but not geraniol or citral. PMID:14657409

Iijima, Yoko; Gang, David R.; Fridman, Eyal; Lewinsohn, Efraim; Pichersky, Eran

2004-01-01

110

Characterization of geraniol synthase from the peltate glands of sweet basil.  

Science.gov (United States)

The monoterpene fraction of the lemon-scented sweet basil (Ocimum basilicum) cv Sweet Dani consists mostly of citral (a mixture of geranial and neral), with lower levels of geraniol and nerol. These compounds are stored in the peltate glands found on the leaf epidermis. Younger leaves, which have a higher density of such glands, also have a higher content of monoterpenes than older leaves. Geraniol synthase (GES) activity, generating geraniol from geranyl diphosphate, was shown to be localized exclusively or almost exclusively to glands. GES activity resides in a homodimeric protein that was purified to near homogeneity. Basil GES requires Mn2+ as a divalent metal cofactor for activity and produces only geraniol from geranyl diphosphate. Km values of 21 and 51 microM were obtained for geranyl diphosphate and Mn2+, respectively. In the presence of 18O-labeled water, GES catalyzed the formation of 18O-geraniol from geranyl diphosphate, indicating that the reaction mechanism of GES is similar to that of other monoterpene synthases and is different from the action of phosphatases. A GES cDNA was isolated based on analysis of a glandular trichome expressed sequence tag database, and the sequence of the protein encoded by this cDNA shows some similarity to sequences of other terpene synthases. The expression of the GES cDNA in Escherichia coli resulted in a protein with enzymatic activity essentially identical to that of plant-purified GES. RNA gel-blot analysis indicated that GES is expressed in glands but not in leaves of basil cv Sweet Dani, whose glands contain geraniol and citral, and not in glands or leaves of another basil variety that makes other monoterpenes but not geraniol or citral. PMID:14657409

Iijima, Yoko; Gang, David R; Fridman, Eyal; Lewinsohn, Efraim; Pichersky, Eran

2004-01-01

111

The symbolical investiture of the archbishop Basil of Bulgaria at Melnik  

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Full Text Available The heretofore variously explained fresco in the apse of the church at Melnik showing the apostle Peter, a bishop and Christ is now interpreted as the symbolical investiture of archbishop Basil. The interpretation is based on iconography analysis taking into account the other frescoes in the apse as well as on the sources relating to the short-lived union of the Bulgarian (Tirnovo Archbishopric with Rome. The fresco has been dated between 1204 and 1207. .

Todi? Branislav

2008-01-01

112

Photoprotection by foliar anthocyanins mitigates effects of boron toxicity in sweet basil (Ocimum basilicum).  

Science.gov (United States)

Boron (B) toxicity is an important agricultural problem in arid environments. Excess edaphic B compromises photosynthetic efficiency, limits growth and reduces crop yield. However, some purple-leafed cultivars of sweet basil (Ocimum basilicum) exhibit greater tolerance to high B concentrations than do green-leafed cultivars. We hypothesised that foliar anthocyanins protect basil leaf mesophyll from photo-oxidative stress when chloroplast function is compromised by B toxicity. Purple-leafed 'Red Rubin' and green-leafed 'Tigullio' cultivars, grown with high or negligible edaphic B, were given a photoinhibitory light treatment. Possible effects of photoabatement by anthocyanins were simulated by superimposing a purple polycarbonate filter on the green leaves. An ameliorative effect of light filtering on photosynthetic quantum yield and on photo-oxidative load was observed in B-stressed plants. In addition, when green protoplasts from both cultivars were treated with B and illuminated through a screen of anthocyanic protoplasts or a polycarbonate film which approximated cyanidin-3-O-glucoside optical properties, the degree of photoinhibition, hydrogen peroxide production, and malondialdehyde content were reduced. The data provide evidence that anthocyanins exert a photoprotective role in purple-leafed basil mesophyll cells, thereby contributing to improved tolerance to high B concentrations. PMID:24903358

Landi, Marco; Guidi, Lucia; Pardossi, Alberto; Tattini, Massimiliano; Gould, Kevin S

2014-11-01

113

The relationship between growth stages and aroma composition of lemon basil Ocimum citriodorum Vis.  

Science.gov (United States)

Volatiles from infusions of lemon basil Ocimum citriodorum Vis were evaluated by SPME-GC/MS. Citral, linalool and estragole were the major constituents. Citral, the major contributor to the lemony flavour, was significantly higher in post-flowering (79%) and full-flowering (65%), it was reduced to 42% at pre-flowering. Linalool was consistent throughout the growth cycle (2-3%). Estragole was higher in pre-flowering representing 15% of the total volatiles present. Linalool levels dropped sharply during the full-flowering and post-flowering stages to 2% and 0.4%, respectively. Volatiles from different parts of lemon basil were evaluated to determine the parts that influence the flavour. The percentage composition of citral for leaves and flowers was 64.5% and 58% for the branches. Linalool was much higher in flowers (13%), followed by 11% in branches and 3% in leaves. The flavour attributes of lemon basil infusions can be improved by incorporating aerial branches and flowers in the tea. PMID:24444959

Al-Kateb, Huda; Mottram, Donald S

2014-01-01

114

[Porto-caval transposition and the course of vasorenal hypertension].  

Science.gov (United States)

The study concerns the effect of angiotensin II when infused into the systemic and portal blood flow upon the general and renal haemodynamics in normal dogs and in hypertensive animals, as well as the effect of the operation of porto-caval transposition upon the course of renovascular hypertension. When peptide is infused, at a rate that causes a moderate pressor effect, into the systemic blood flow of normal animals, an antidiuretic and antinatriuretic effect is obtained, in hypertensive animals--an increase of diuresis, natriuresis and a less distinct pressor effect are obtained. When angiotensin II is infused into the portal flow, a less distinct pressor and renal effect is seen in animals with renovascular hypertension. The operation of porto-caval transposition of the vessels results in a hypotensive effect in the animals with renovascular hypertension. PMID:950758

Kogan, A S; Kolpakov, M G; Tsys', O N; Matveev, P V; Protsenko, M I

1976-05-01

115

Surgical Preparation of a Permanent Carotid Transposition in Sheep  

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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

116

The expected number of inversions after n adjacent transpositions  

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We give a new expression for the expected number of inversions in the product of n random adjacent transpositions in the symmetric group S_{m+1}. We then derive from this expression the asymptotic behaviour of this number when n scales with m in various ways. Our starting point is an equivalence, due to Eriksson et al., with a problem of weighted walks confined to a triangular area of the plane.

Bousquet-me?lou, Mireille

2009-01-01

117

Preferential transposition ofAc to linked sites in Arabidopsis.  

Science.gov (United States)

We have investigated the pattern of transposition of an intact, 4.6-kbAc element inArabidopsis thaliana. Because the trans-acting transposition function (transposase) ofAc is not fully penetrant in Arabidopsis, it is not possible to use it as a diagnostic feature to scoreAc genetically, as has been done in maize and tobacco. Instead, the presence or absence of a transposedAc (trAc) was monitored by Southern blots. Germinal transpositions from the marker SPT::Ac were selected using a streptomycin germination assay and scored for the presence of atrAc. Segregation of thetrAc element and the SPT donor locus was scored in the F2 progeny of the germinal revertants, and the recombination fraction between thetrAc element and SPT was estimated by the method of maximum likelihood. We have found that, as in maize and tobacco, receptor sites fortrAcs in Arabidopsis tend to be linked to theAc donor locus. PMID:24193707

Keller, J; Lim, E; Dooner, H K

1993-06-01

118

Pediatric laparoscopic-assisted gastric transposition: early experience and outcomes.  

Science.gov (United States)

astric transposition in children is a well-established treatment for long-gap esophageal atresia and long caustic strictures when preservation of the native esophagus is impossible, but does involve laparotomy and, often, thoracotomy incisions. The minimally invasive approach to this operation has been attempted in 7 patients to date in the UK, all at Great Ormond Street Hospital (London, UK). Four patients were male, 3 were female, with a mean age of 3 years and 7 months (range, 5 months to 13 years). Indications were long-gap esophageal atresia where primary anastomosis was impossible (5 patients) and caustic ingestion with long esophageal strictures (2 patients). The stomach was mobilized laparoscopically by using 5-mm instruments and a pneumoperitoneum of 10 mm Hg. Following pyloromyotomy or pyloroplasty, a tunnel in the posterior mediastinum was developed. The fundus of the stomach was drawn to the neck and sutured to the cervical esophagus. The patients were ventilated on our intensive care unit and then returned to the surgical ward before discharge. Gastric transposition was completed laparoscopically in 6 of 7 patients. The mean duration of surgery was 327 minutes (range, 240-455). All patients survived. Minor complications were pneumonia (2), pleural effusion (1), and hiatus hernia (2). The mean hospital stay was 16 days (range, 8-36). Our preliminary experience would suggest that laparoscopic gastric transposition is a safe alternative to open surgery with satisfactory results. PMID:19811062

Stanwell, Joanna; Drake, David; Pierro, Agostino; Kiely, Edward; Curry, Joe

2010-03-01

119

[Multiple induction of transpositions of Mobile Genetic Element B104 in Drosophila with severe heat shock].  

Science.gov (United States)

Induction of transpositions by heavy heat shock (HHS) was demonstrated for the copia-like mobile genetic element B104. The probability of transposition induction lambda HHS was equal to 8.1 x 10(-2) per site per spermatozoon per spermatozoon per generation, which is an order of magnitude higher than the upper limit of spontaneous transposition probability estimate, lambda k Hot" and "cold" transposition sites were found. Many multisite heat shock haplotypes were shown to be nonrandom combinations of independent single-site transpositions. Multiples of numerous heat shock haplotypes exceeded expected values, which suggest-s that they were selected either in male germline cells or at the level of gametic fertility. These data confirm our earlier results obtained for Dm412. Heat shock transposition induction can be considered as a general property of different copia-like mobile genetic elements in Drosophila. PMID:8045384

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

1994-02-01

120

Toxicity of basil oil constituents and related compounds and the efficacy of spray formulations to Dermatophagoides farinae (Acari: Pyroglyphidae).  

Science.gov (United States)

Pyroglyphid house dust mites are the most common cause of allergic symptoms in humans. An assessment was made of the toxicity of basil, Ocimum basilicum L, essential oil, 11 basil oil constituents, seven structurally related compounds, and another 22 previously known basil oil constituents to adult American house dust mites, Dermatophagoides farinae Hughes. The efficacy of four experimental spray formulations containing basil oil (1, 2, 3, and 4% sprays) was also assessed. Results were compared with those of two conventional acaricides benzyl benzoate and N,N-diethyl-3-methylbenzamide. The active principles of basil oil were determined to be citral, alpha-terpineol, and linalool. Citral (24 h LC50, 1.13 microg/cm2) and menthol (1.69 microg/cm2) were the most toxic compounds, followed by methyl eugenol (5.78 microg/cm2). These compounds exhibited toxicity greater than benzyl benzoate (LC50, 8.41 microg/cm2) and N,N-diethyl-3-methylbenzamide (37.67 microg/cm2). Potent toxicity was also observed with eugenol, menthone, spathulenol, alpha-terpineol, nerolidol, zerumbone, and nerol (LC50, 12.52-21.44 microg/cm2). Interestingly, the sesquiterpenoid alpha-humulene, lacking only the carbonyl group present in zerumbone, was significantly less effective than zerumbone, indicating that the alpha,beta-unsaturated carbonyl group of zerumbone is a prerequisite component for toxicity. These compounds were consistently more toxic in closed versus open containers, indicating that their mode of delivery was largely a result of vapor action. Basil oil applied as 3 and 4% sprays provided 97 and 100% mortality against the mites, respectively, whereas permethrin (cis:trans, 25:75) 2.5 g/liter spray treatment resulted in 17% mortality. Our results indicate that practical dust mite control in indoor environments can be achieved by basil oil spray formulations (3 and 4% sprays) as potential contact-action fumigants. PMID:24897858

Perumalsamy, Haribalan; Kim, Jae Yeon; Kim, Jun-Ran; Hwang, Kum Na Ra; Ahn, Young-Joon

2014-05-01

 
 
 
 
121

[Hemodynamic analysis of the hypotensive effect of portacaval transposition of vessels in vasorenal hypertension].  

Science.gov (United States)

Experiments were conducted on unanesthetized dogs; the influence of portocaval transposition on the systemic hemodynamics of the intact dogs and dogs with experimental vasorenal hypertension was studied. Arterial pressure was decreased in dogs with vasorenal hypertension after portocaval transposition mainly by means of reduction of the total peripheral resistance. There was no considerable change of hemodynamics in the intact dogs after the portocaval transposition. PMID:1276435

Matveev, P V; Tsys', O N; Gonchar, A M; Kogan, A S

1976-01-01

122

Penile rotation and penoscrotal transposition associated with hypospadias and bifid scrotum: A case report  

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Full Text Available Penoscrotal transposition is a rare anomaly of the external genitalia that can be complete or incomplete while incomplete type is more common. Penile torsion is a rotational defect of the penile shaft. Various surgical methods are described for correction of incomplete penoscrotal transposition and penile torsion. Here we are presenting our experience of case of incomplete penoscrotal transposition and penile torsion correction.

Hayrettin Ozturk

2014-08-01

123

Isolated pulmonary vein atresia.  

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Two patients with isolated atresia of the pulmonary veins are described. One patient presented with haemoptysis and the other with recurrent unilateral chest infections. The diagnosis was confirmed in both instances by cardiac catheterisation and pulmonary angiography. One patient died one year after the diagnosis was made and the second child has been stable during a follow up period of three years.

Cullen, S.; Deasy, P. F.; Tempany, E.; Duff, D. F.

1990-01-01

124

Deep Vein Thrombosis  

Centers for Disease Control (CDC) Podcasts

This podcast discusses the risk for deep vein thrombosis in long-distance travelers and ways to minimize that risk.  Created: 4/5/2012 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 4/5/2012.

2012-04-05

125

Varicose anomal pulmonary vein  

International Nuclear Information System (INIS)

A case is reported where plain chest X-ray examination of a healthy 22 year old man showed a perihilar mass on the right side. Pulmonary angiography showed the mass to be a varicous, anomal pulmonary vein. The indications for pulmonary angiography in patients with suspected vascular lesions are discussed

126

Collateral veins in left renal vein stenosis demonstrated via CT  

International Nuclear Information System (INIS)

Twelve patients with left renal vein stenosis from tumor compression were studied with CT. All had distended collateral veins in the perirenal space which either formed a radiating or a cobweb pattern or appeared as marked longitudinal veins. Inferior phrenic vein branches were seen in seven patients and were considerably enlarged in two. Other major veins possibly taking part in collateral circulation could not be recognized due to obliteration of fat planes. The renal fascia was thickened in eleven patients, probably due to edema. A close study of the perirenal space with CT may give valuable information about collateral development. (orig.)

127

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

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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

128

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

129

Epidermal coumaroyl anthocyanins protect sweet basil against excess light stress: multiple consequences of light attenuation.  

Science.gov (United States)

The putative photoprotective role of foliar anthocyanins continues to attract heated debate. Strikingly different experimental set-ups coupled with a poor knowledge of anthocyanin identity have likely contributed to such disparate opinions. Here, the photosynthetic responses to 30 or 100% solar irradiance were compared in two cultivars of basil, the green-leafed Tigullio (TG) and the purple-leafed Red Rubin (RR). Coumaroyl anthocyanins in RR leaf epidermis significantly mitigated the effects of high light stress. In full sunlight, RR leaves displayed several shade-plant traits; they transferred less energy than did TG to photosystem II (PSII), and non-photochemical quenching was lower. The higher xanthophyll cycle activity in TG was insufficient to prevent inactivation of PSII in full sunlight. However, TG was the more efficient in the shade; RR was far less able to accommodate a large change in irradiance. Investment of carbon to phenylpropanoid biosynthesis was more in RR than in TG in the shade, and was either greatly enhanced in TG or varied little in RR because of high sunlight. The metabolic cost of photoprotection was lower whereas light-induced increase in biomass production was higher in RR than in TG, thus making purple basil the more light tolerant. Purple basil appears indeed to display the conservative resource-use strategy usually observed in highly stress tolerant species. We conclude that the presence of epidermal coumaroyl anthocyanins confers protective benefits under high light, but it is associated with a reduced plasticity to accommodate changing light fluxes as compared with green leaves. PMID:24684471

Tattini, Massimiliano; Landi, Marco; Brunetti, Cecilia; Giordano, Cristiana; Remorini, Damiano; Gould, Kevin S; Guidi, Lucia

2014-11-01

130

Induction of single transpositions of mobile genetic elements in Drosophila melanogaster using mitomycin C  

International Nuclear Information System (INIS)

Injection of mitomycin C intra-abdominally into males of stable laboratory lines of Drosophila melanogaster causes the appearance of various mutational events at a number of loci of the X-chromosome in offspring. It is shown that they are the result of transpositions of mobile genetic elements. These events are single and are not the result of transposition bursts

131

On a diameter bound for Cayley graphs generated by transposition trees  

CERN Document Server

Let $\\Gamma$ be a Cayley graph generated by a transposition tree. A natural problem is to understand how the properties of the Cayley graph depend on those of the underlying transposition tree. We focus here on diameter and distance related questions. We examine some related bounds and prove some properties about them.

Ganesan, Ashwin

2011-01-01

132

Varicosity of the pulmonary veins  

International Nuclear Information System (INIS)

Varicosity of the pulmonary veins is a rare anomaly of the pulmonary vascular system. The varices do not usually change in size over years, do not cause symptoms and need no therapy. However, raised left atrial pressure can cause increase in the diameter of pulmonary vein varices. A case of lung vein varicosity in the right middle and upper lobe associated with coarctation of the aorta and an anomalous upper-middle lobe vein was observed over a period of 10 years. Increase in left atrial pressure (aortic and relative mitral regurgitation) led to enlargement of the pulmonary veins. (orig.)

133

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

134

[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

135

Portal vein thrombosis  

Directory of Open Access Journals (Sweden)

Full Text Available Acute portal vein thrombosis (PVT is un uncommon disease that can be seen in the Emergency Department. In the emergency department setting the diagnosis is difficult because of the variety of clinical presentation but in some clinical presentation patterns the diagnosis should be suspected. Regard to the appropriate radiological abdominal images, color flow Doppler ultrasonography can diagnose the fresh thrombus and spiral CT may be complementary in the diagnosis. The diagnosis differentiation between acute and chronic portal vein thrombosis is important for therapeutic management and prognosis. In stable patient the most common therapy is heparin and warfarin but in some cases thrombolysis can be the treatment of choice. In the patients with intestinal infarction the surgical therapy is strongly indicated. Two cases , one of acute and the other of chronic PVT, are presented and discussed.

Ivo Casagranda

2005-10-01

136

The effects of plant growth regulators and L-phenylalanine on phenolic compounds of sweet basil.  

Science.gov (United States)

The effects of methyl jasmonate (MeJA), spermine (Spm), epibrassinolide (EBL) and l-phenylalanine on sweet basil (Ocimum basilicum L.) were studied to determine the amount of phenolic compounds and enzymatic activity of phenylalanine ammonia-lyase (PAL). Total phenolic and total flavonoid contents of sweet basils were determined by a spectrophotometer, and individual phenolic compounds and activity of PAL were analysed by HPLC/UV. The highest total phenolic (6.72 mg GAE/g) and total flavonoid contents (0.92 mg QE/g) obtained from 1.0 mM Spm+MeJA application. Rosmarinic acid (RA) and caffeic acid contents significantly enhanced after the applications but no such differences observed in chicoric acid content or PAL activity. RA was the main phenolic acid in all samples and its concentration varied from 1.04 to 2.70 mg/gFW. As a result the combinations of Spm+MeJA and EBL+MeJA can induce secondary metabolites effectively and those interactions play important role in the production of phytochemicals in plants. PMID:25053088

Koca, Nülüfer; Karaman, ?engül

2015-01-01

137

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

138

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

139

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

140

Retroaortic left renal vein joining the left common iliac vein  

Energy Technology Data Exchange (ETDEWEB)

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.)

Brancatelli, G.; Galia, M.; Finazzo, M.; Sparacia, G.; Pardo, S.; Lagalla, R. [Dept. of Radiology ' ' P. Cignolini' ' , Univ. of Palermo (Italy)

2000-11-01

 
 
 
 
141

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

142

Data transposition and helical scheme in prestack finite-difference migration  

Energy Technology Data Exchange (ETDEWEB)

New wave equations are constantly being developed to respond to the increased demand for imaging complex geologic structures. In this study, the authors analyze the efficiency of prestack finite-difference migration with particular focus on data transposition in the two-way splitting algorithm. They presented a tiled data transposition algorithm which achieves good efficiency through greater access coherence. A helical scheme which eliminates the need for data transposition in common-shot migration was also presented. This newly developed algorithm speeds up downward extrapolation by 30 to 40 per cent and produces an image quality that is comparable to non-helical methods. 13 refs., 1 tab., 5 figs.

Zhang, Y. [Veritas DGC Inc., Houston, TX (United States); Liang, J. [Veritas DGC Inc., Calgary, AB (Canada); Zhang, G. [Chinese Academy of Sciences, Beijing (China)

2003-07-01

143

Laparoscopic gastric transposition with cervical esophagogastric anastomosis for long gap pure esophageal atresia.  

Science.gov (United States)

The management of long-gap pure esophageal atresia remains controversial. Treatment options include primary repair with or without circular myotomoies of the upper pouch, proximal and distal pouch dilation/stretching, colon/small intestinal replacement, and gastric transposition/pull-up. Of these options, only the gastric transposition can be performed in a completely laparoscopic approach. In this paper, we report a case of complete laparoscopic gastric transposition with cervical esophagogastric anastomosis in an infant with long-gap pure esophageal atresia. PMID:19405803

St Peter, Shawn D; Ostlie, Daniel J

2010-02-01

144

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

145

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

146

Transposition of Tn 1 to the Rhizobium meliloti genome.  

Science.gov (United States)

A derivative of the IncP1 plasmid RP4, carrying the thermoinducible prophage Mucts62, was obtained in Escherichia coli K12 J53 (RP4). It was impossible to maintain the hybrid plasmid RP4::Mucts62 in Rhizobium meliloti GR4. Thus, it was used as a vehicle for introducing the ampicillin-resistant transposon Tn1 into the R. meliloti genome. Transposition of Tn1 did not generate auxotrophic strains, suggesting that the insertion of Tn1 into the R. meliloti genome was relatively specific. Two chromosomal hot spots for Tn1 insertion were identified by cotransductional analysis, after general transduction by phage DF2. Plasmid-curing experiments, carried out by heat treatment, revealed that symbiotic plasmid(s) also contain at least one site for Tn1 insertion. PMID:6258027

Casadesús, J; Iáñez, E; Olivares, J

1980-01-01

147

PlayDT : Transposition of Domain Knowledge into Educational Games  

DEFF Research Database (Denmark)

Starting from Rogoff’s (1990) theory of apprenticeship in thinking and Apter’s (1987) reversal theory, this paper discusses the formulation of PlayDT (Playful Domain Transposition), a new approach to support the transposition of complex concepts, from different knowledge domains, into playful interactions, through the design of interactive media. PlayDT aims at facilitating the creation of a creative and easy understandable mapping between knowledge and interaction within the game. Multiple representations are encouraged, so to allow learners to express their own preferences, regarding their play experience. This study is based on reflections on three design-oriented research projects. The first one is MicroCulture (?C), a mixed-reality game, aimed at supporting learning of historical processes during guided tours in museums; it is targeted to primary school children. ?C was developed through a participatory design process, involving task-supported interviews and co-design workshops with children between 9 and 12. Among the findings, a strategy to map knowledge into interactions emerged, together with rich insights about children’s different approaches to play. In an attempt to evaluate the knowledge mapping, we designed PrimeSlaughter, a computer game aimed at supporting learning of prime numbers and factorization, for later primary and early secondary school pupils; the same domain concepts were mapped into two play styles in the game. In this study, we intend to go further in our formulation of the PlayDT approach, through another design study, aimed at creating a game to support learning of the Fourier Transform. In order to generalize further the mapping approach, a participatory workshop was conducted with university students, who provided inspirations to map the Fourier Transform into different games and various play styles. Reflections on these studies provide a solid grounding to define the PlayDT approach, its different stages, and implications for learning practice.

Marchetti, Emanuela; Valente, Andrea

2013-01-01

148

Infrared imaging of varicose veins  

Science.gov (United States)

It has been established that varicose veins are better visualized with infrared photography. As near-infrared films are nowadays hard to get and to develop in the digital world, we investigated the use of digital photography of varicose veins. Topics that are discussed are illumination setup, photography and digital image enhancement and analysis.

Noordmans, Herke Jan; de Zeeuw, Raymond; Verdaasdonk, Ruud M.; Wittens, Cees H. A.

2004-06-01

149

Characterization of new biodegradable edible film made from basil seed (Ocimum basilicum L.) gum.  

Science.gov (United States)

It is well known that the market for edible films is experiencing remarkable growth and expected to continue. This study investigated the using of basil seed gum (BSG) as a new film-forming material under the influence of addition of glycerol (GLY) as plasticizer. Edible films based on BSG and three different concentrations of GLY (25%, 35%, and 50% w/w BSG) were developed, and their water vapor permeability (WVP), as well as physical, thermal and mechanical properties were measured. The addition of glycerol significantly increased water vapor permeability and solubility of the film (pfilms as smooth, and uniform which lacked pores or cracks compared with those were not plasticized. This study revealed that the BSG had a good potential to be used in producing edible films for various food applications. PMID:24507273

Khazaei, Naimeh; Esmaiili, Mohsen; Djomeh, Zahra Emam; Ghasemlou, Mehran; Jouki, Mohammad

2014-02-15

150

How Is Deep Vein Thrombosis Diagnosed?  

Science.gov (United States)

... Deep Vein Thrombosis » Diagnosis Deep Vein Thrombosis Explore Deep Vein Thrombosis What Is ... Other Names Causes Who Is at Risk Signs & Symptoms Diagnosis Treatments Prevention Living With Clinical Trials Links Spanish Version ...

151

How Can Deep Vein Thrombosis Be Prevented?  

Science.gov (United States)

... Deep Vein Thrombosis » Prevention Deep Vein Thrombosis Explore Deep Vein Thrombosis What Is ... Other Names Causes Who Is at Risk Signs & Symptoms Diagnosis Treatments Prevention Living With Clinical Trials Links Spanish Version ...

152

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

153

Effect of lateral release and tibial tuberosity transposition on the patellar tilt analyzed by MRI  

International Nuclear Information System (INIS)

The preliminary results are presented from studies in which MRI techniques are used to analyze the effect of lateral release and tibial tuberosity transposition procedures on the patellofemoral relationships. (author). 4 refs.; 1 fig.; 1 tab

154

Varicose Veins - Sclerotherapy  

Science.gov (United States)

This patient education program explains the benefits and risks of sclerotherapy for varicose veins. It also reviews the anatomy of the cardiovascular system, symptoms, causes, preventive measures, what the procedure involves, and possible complications. This resource is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute. NOTE: This tutorial requires a special Flash plug-in, version 4 or above. If you do not have Flash, you will be prompted to obtain a free download of the software before you start the tutorial. You will also need an Acrobat Reader, available as a free download, in order to view the Reference Summary.

Institute, Patient E.

2008-07-25

155

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

156

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

157

Expected number of inversions after a sequence of random adjacent transpositions  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In the evolution of a genome, the gene sequence is sometimes rearranged, for example by transposition of two adjacent gene blocks. In biocombinatorics, one tries to reconstruct these rearrangement incidents from the resulting permutation. It seems that the algorithms used are too effective and find a shorter path than the real one. For the simplified case of adjacent transpositions, we give expressions for the expected number of inversions after t random moves. This average ...

Eriksson, Henrik; Eriksson, Kimmo; Sjostrand, Jonas

2004-01-01

158

[New evidence for the induction of mobile genetic element transpositions by severe heat shock].  

Science.gov (United States)

The induction of retrotransposon 412 transpositions by stress was studied in detail. Males of an isogenic line carrying the radius incompletus (ri) mutation of the Mendelian gene were exposed to heavy heat shock (HHS). The procedure consisted of treatment at 37 degrees C for 1 h and at 4 degrees C for 1 h, with reciprocal changes of developmental temperature 3 times, sequentially; the males were then crossed with untreated females. The same males were crossed both on the fifth and ninth day after the HHS treatment. On the basis of in situ hybridization in 85 F1 larvae, 193 transpositions were identified. After treatment, the transposition rate increased by two orders of magnitude (compared to control) and amounted to 0.11 events per site of the original isogenic line per spermium per generation. Two hot sites (segments) of preferential transposition localization, 43B and 97CD, were detected after the first cross; these sites comprised more than 3/4 of all transpositions. Sperm from the first cross were exposed to HHS during the time period of 120 to 244 h after the appearance of the corresponding germline cells, probably at the stage of spermatid maturation. The overinduction of transpositions was shown to occur in these sites and at this stage. In the remaining sites, after the first cross, and in all sites, after the second cross, the rate of induced transpositions was (1.3-3.1) x 10(-2) events per site per spermium per generation, which is higher than in the control by an order of magnitude. This basic induction level was observed at all stages of spermatogenesis. The induction of transposition by heavy heat shock may be considered established. PMID:9879013

Vasil'eva, L A; Bubenshchikova, E V; Ratner, V A

1998-09-01

159

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

160

Considerations and concerting on the european directive transposition to the internal gas market; Mission de reflexion et de concertation sur la transposition de la directive europeenne sur ''le marche interieur du gaz''  

Energy Technology Data Exchange (ETDEWEB)

In the framework of the directive 98/30/CE transposition on the the gas internal market, a report has been asked by the First Ministry to define the new form of the gas utilities. The directive deals with the competition opening. The first part presents the gas market organization in France, today and after the transposition. The second part analyses the big stakes of this transposition. (A.L.B)

Bricq, N

1999-10-01

 
 
 
 
161

Hepatic veins in northwest Indian subjects.  

Science.gov (United States)

Formation, position, course and areas of drainage by hepatic veins were studied in 153 adult autopsy specimens. There were three major hepatic veins; left, middle and right. The middle hepatic vein (MHV) joined the left hepatic vein (LHV) in 88.2% specimens before the latter opened into inferior vena cava (IVC). Each major hepatic vein was joined by a superior vein. An intersegmental vein was present in the septum between the medial and lateral segments; it either joined the LHV or MHV. Formation and course of posterior hepatic veins (small veins) have been described and a nomenclature has been suggested. The right suprarenal vein either opened directly into IVC or joined the superior or inferior posterior hepatic veins. PMID:12833704

Jhingan, V; Sahni, D; Chawla, Y K; Harjeet; Jit, Indar

2002-01-01

162

Thrombosis of right ovarian vein  

International Nuclear Information System (INIS)

Ovarian vein thrombosis is a rare postpartum complication (0.1%). It can be fatal, since it can lead to sepsis, pulmonary thromboembolisms and inferior vena cava or renal vein thrombosis. Computed tomography and magnetic resonance imaging are the techniques of choice for its diagnosis, while the value of ultrasound is limited due to its low sensitivity and specificity. We report the case of a woman who, during puerperium, developed thrombosis of right ovarian vein that presented clinical, ultrasonographic and computed tomographic features of appendicitis. We describe the radiological sings and stress the fact that this diagnosis should be suspected in puerperal women. (Author) 9 refs

163

Effect of cultivar on phenolic levels, anthocyanin composition, and antioxidant properties in purple basil (Ocimum basilicum L.).  

Science.gov (United States)

In this study, we determined the effect of cultivar on total and individual anthocyanin concentrations and phenolic acid levels in eight purple basil varieties and examined the relationship between anthocyanin content, phenolic acid composition, and antioxidant properties. Cultivar had a significant influence on total anthocyanin concentrations as well as individual anthocyanin composition. The four major basil anthocyanins (labelled A-D) were quantified and cultivar had a statistically significant effect on anthocyanins B (panthocyanin A (p=0.94). Cultivar did not have a significant effect on total phenolic levels, although it did influence the concentration of some individual phenolic acids, including caftaric (p=0.03) and chicoric (p=0.04) acids. Although total phenolic and anthocyanin levels correlated with measured FRAP antioxidant capacities, for some cultivars the individual phenolic acid and anthocyanin composition was also an important factor affecting the antioxidant properties. PMID:24996365

Flanigan, Patrick M; Niemeyer, Emily D

2014-12-01

164

The natural basil flavonoid nevadensin protects against a methyleugenol-induced marker of hepatocarcinogenicity in male F344 rat.  

Science.gov (United States)

The alkenylbenzene methyleugenol occurs naturally in a variety of spices and herbs, including basil, and their essential oils. At high dose levels methyleugenol induces hepatocarcinogenicity in rodents following bioactivation to 1'-sulfooxymethyleugenol which forms DNA adducts. This study investigated whether the inhibitory effect of the basil flavonoid nevadensin on sulfotransferase (SULT)-mediated bioactivation of methyleugenol observed in vitro would also be reflected in a reduction of DNA adduct formation and a reduction in an early marker for liver carcinogenesis in an 8-week rat study. Co-exposure to methyleugenol and nevadensin orally resulted in a significant inhibition of liver methyleugenol DNA adduct formation and in inhibition of hepatocellular altered foci induction, representing indicators for initiation of neoplasia. These results suggest that tumor formation could be lower in rodent bioassays when methyleugenol would be dosed in a matrix containing SULT inhibitors such as nevadensin compared to experiments using the pure methyleugenol. PMID:25218219

Alhusainy, Wasma; Williams, Gary M; Jeffrey, Alan M; Iatropoulos, Michael J; Taylor, Sean; Adams, Timothy B; Rietjens, Ivonne M C M

2014-12-01

165

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

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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...

Abbas, Rabia J.

2010-01-01

166

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)

167

Efficient transposition of IS204-derived plasmids in Streptomyces coelicolor.  

Science.gov (United States)

In order to study functional gene expression in Streptomyces coelicolor, a mini-transposon encoding the apramycin resistance gene aac(3)IV within its inverted repeat (IR) boundaries was constructed based on IS204, which was previously identified in the genome of Nocardia asteroides YP21. The mini-transposon and IS204 transposase gene were then put on a kanamycin-resistant conjugative plasmid pDZY101 that can only replicate in Escherichia coli. After mating with S. coelicolor A3(2) M145, resistant colonies arose efficiently on both apramycin and kanamycin plates. Plasmid rescue indicated that entire plasmids were inserted into the M145 genome with cleavage at an inverted repeat junction formed by the right inverted repeat (IRR) and the last 18bp of the transposase gene, while the left inverted repeat (IRL) was untouched. Southern blot analysis of the mutants using an aac(3)IV gene probe showed that transposition of plasmid pDZY101 was genetically stable, with a single-copy insertion within the S. coelicolor M145 genome. Several mutagenesis libraries of S. coelicolor M145 were constructed using plasmid pDZY101 derivatives and the transposon insertion site was determined. The correlation between novel mutant phenotypes and previously uncharacterized genes was established and these transposon locations were widely scattered around the genome. PMID:22079690

Zhang, Xincheng; Bao, Yun; Shi, Xunlong; Ou, Xijun; Zhou, Pei; Ding, Xiaoming

2012-01-01

168

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

169

Gene conversion in transposition of Escherichia coli element IS30.  

Science.gov (United States)

The mobile element IS30 has dual target specificity, since it can integrate adjacent to the inverted repeat (IR) of another IS30 copy or into hot-spot sequences characterized by a well-defined consensus showing no similarity to the ends of the element. The result of such integrations into these targets is different, as gene conversion events take place frequently during insertion next to an IR end, while this phenomenon has never been observed in targeting hot-spot sequences. Conversion events in IR-targeting cannot be explained exclusively by the activity of the transposase, but suggest the involvement of the homologous recombination and repair machinery of the host cell. Here, we show that the homology between the donor and target sequences is required for conversion and the starting point of the process is the site of integration. The frequency of conversion depends on the distance of mutations from the end of the targeted element. Remarkable bias is found in the role of donor and target DNA, since generally the donor sequence is converted depending on the target. Conversion was shown to occur also without formation of transposition products. All these data are consistent with the idea of the establishment, migration and resolution of a Holliday-like cruciform structure, which can be responsible for conversion events. To explain the variety of conversion products in IR-targeting, a molecular model has been proposed and discussed. PMID:14643660

Olasz, Ferenc; Fischer, Tamás; Szabó, Mónika; Nagy, Zita; Kiss, János

2003-12-12

170

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

171

Varicose Veins and Venous Insufficiency  

Science.gov (United States)

... abnormal saphenous vein. Through this catheter, laser or radiofrequency energy is applied to the inside of the ... return to normal activity with little or no pain. There may be minor soreness or bruising, which ...

172

A Vein Map Biometric System  

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Full Text Available There is increasing demand world-wide, from government agencies and the private sector for cutting-edge biometric security technology that is difficult to breach but userfriendly at the same time. Some of the older tools, such as fingerprint, retina and iris scanning, and facial recognition software have all been found to have flaws and often viewed negatively because of many cultural and hygienic issues associated with them. Comparatively, mapping veins as a human barcode, a new technology, has many advantages over older technologies. Specifically, reproducing a three-dimensional model of a human vein system is impossible to replicate. Vein map technology is distinctive because of its state-of-the-art sensors are only able to recognize vein patterns if hemoglobin is actively flowing through the person

Felix Fuentes

2013-08-01

173

JAMA Patient Page: Treatment of Varicose Veins  

Science.gov (United States)

... for telangiectasias, reticular veins, or small varicose veins. • Radiofrequency ablation ( RFA ) or endovenous laser ablation ( EVLT )—this outpatient procedure is the preferred treatment for saphenous reflux because of shorter recovery and less pain compared with removing the vein. The vein is ...

174

Transposition bursts during analysis of secondary mutations in the unstable lines of Drosophila melanogaster  

International Nuclear Information System (INIS)

The article deals with realization of transposition memory discovered earlier at cut locus and in MDG4. The unstable line cmMR17 ctMRpN17, a derivative of ctMR2 line, was used. It has high frequency of double cm+ct+ revertants and secondary cmMRctMRpN mutants. Such mutant transitions were observed in the line five times. Mutation ctMRpN17 was caused by the insertion at cut locus of MDG4 with another mobile element, jockey. In situ hybridization showed that the transitions from mutational condition to normal are strongly correlated with the excision of MDG4 and jockey from 7B3-4 region of cut locus and their repeated insertion into it. The analysis of distribution of MDG1, MDG2, MDG3, and jockey in the X chromosomes of the revertant larvae and secondary mutants showed that not only transpositions of MDG4 and jockey but also simultaneous multiple migration of all the tested mobile elements take place with their complete stability in the absence of mutational transitions. Therefore, the transposition memory in this system of genetic instability is realized in the process of transposition bursts, but does not lead to isolated repeated transpositions of MDG4

175

The "sliding door" technique for closure of abdominal wall defects after rectus abdominis musculocutaneous flap transposition.  

Science.gov (United States)

Radical surgery is often necessary in patients with local recurrence of rectal cancer or in those with carcinoma associated with an anal fistula. The surgery may include extended excision of the perineal area and can create a large dead space in the pelvis and a large skin defect, often necessitating reconstruction of the pelvic floor using rectus abdominis musculocutaneous (RAM) flap transposition. Wound dehiscence and incisional hernia are common complications of RAM flap transposition. We report herein our encounter with 3 patients in whom we used a "sliding door" technique for reconstruction of the abdominal wall after the creation of a RAM flap. One patient underwent abdominoperineal resection with sacrectomy and RAM flap transposition; he experienced a postoperative surgical site infection and wound dehiscence, which we urgently repaired by reconstructing the abdominal wall using the sliding door technique. Two other patients underwent posterior pelvic exenteration with sacrectomy and RAM flap transposition. These patients underwent simultaneous abdominal wall reconstruction using the sliding door technique. No patient experienced postoperative pelvic sepsis, wound dehiscence, or incisional hernia. The sliding door technique might be useful for preventing wound dehiscence and incisional hernia in patients undergoing RAM flap transposition. PMID:24394135

Nakamoto, Takayuki; Koyama, Fumikazu; Kobata, Yasunori; Nagao, Mitsuo; Nakagawa, Tadashi; Nakamura, Shinji; Ueda, Takeshi; Nishigori, Naoto; Inoue, Takashi; Kawasaki, Keijiro; Obara, Shinsaku; Fujii, Hisao; Kido, Akira; Koizumi, Munehisa; Tanaka, Yasuhito; Nakajima, Yoshiyuki

2013-11-01

176

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

177

Proximate and Minor Mineral Content in Some Selected Basil Leaves of Ocimum gratissimum L, in Libya  

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Full Text Available Leaves of Ocimum gratissinum collected from Three different Locations in Misurata region (Zaroge, Tamena and Daphnia in Libya was analyzed for proximate and minor minerals constituents. The proximate analysis to samples(Zaroge, Tamena and Daphniashowed the percentage of crude protein content, moisture, lipids, ash and carbohydrate of the leaves on dry weight basis as ( 9.10, 10.60, 41.3 , 50.35, 10.08%, ( 9.80 , 10.40, 11.0, 14.5, 52.45%( and ( 9.22, 10.60, 22.55, 13.19, 11.16% respectively. The percentages of minor mineral elements content were (Iron from 0.98 to 4.35 mg/100g, (Zinc from 10.44 to 17.72 mg/100g, (Copper from 0.45 to 3.75 mg/100g, (Lead from 0.061 to 0.12 mg/100g and (Cadmium from 0.011 to 0.018 mg/100g.The results of the analysis of basic components and a high proportion of protein, carbohydrates and minor mineral elements gave the basil importance of food and indicates its potential as a source of drugs

A. M. Mlitan

2014-12-01

178

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. PMID:24959525

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

2014-04-01

179

Numerical Modelling of Vein Microstructures  

Science.gov (United States)

Mineral veins occur in a variety of forms (syntaxial, antitaxial, etc.), and with various microstructures (fibrous, stretched crystals, vuggy, etc.). These structures can, if correctly interpreted, provide useful insight into the geological and tectonic conditions at which the veins formed (Oliver and Bons 2001). Durney and Ramsay (1973) defined the base for the modern classification and interpretation of vein (micro-) structures. Numerical modelling, not available then, has since been added as a tool to better understand the formation of vein (micro-) structures, focussing on three aspects in particular: 1) What determines the habit of growing vein crystals? In particular, what determines the formation of a fibrous habit? (Bons 2001, Hilgers et al. 2001) 2) The formation of fibrous pressure fringes. The complex internal structures of the fringes appear mostly the result of the relative rotation of object and fringes (Koehn et al. 2001). 3) Competition between growing crystals, which for example explains the development of a conical c-axes CPO in zeolite films (Bons and Bons 2003). References: Bons, P.D. 2001. Development of crystal morphology during unitaxial growth in a progressively widening vein: I. The numerical model. Journal of Structural Geology 23, 865-872. Bons, A.J., Bons, P.D. 2003. The development of oblique preferred orientations in zeolite films and membranes. Microporous and Mesoporous Materials 62, 9-16. Durney DW, Ramsay JG (1973) Incremental strains measured by syntectonic crystal growths. In: Gravity and Tectonics (eds De Jong KA, Scholten K), John Wiley and Sons, New York, pp. 67-96. Hilgers, C., Koehn, D., Bons, P.D., Urai, J.L. 2001. Development of crystal morphology during unitaxial growth in a progressively widening vein: II. Numerical simulations of the evolution of antitaxial fibrous veins. Journal of Structural Geology 23, 873-885. Koehn, D., Aerden, D.G.A.M., Bons, P.D., Passchier, C.W. 2001. Computer experiments to investigate complex fibre patterns in natural antitaxial strain fringes. Journal of Metamorphic Geology 19, 217-232. Oliver, N.H.S., Bons, P.D. 2001. Mechanisms of fluid flow and fluid-rock interaction in fossil metamorphic-hydrothermal systems inferred from vein-wallrock patterns, geometry, and microstructure. Geofluids 1, 137-163.

Bons, P. D.

2005-12-01

180

Early treatment of an ectopic premolar to prevent molar-premolar transposition.  

Science.gov (United States)

Orthodontic treatment is planned on an individual, case-by-case basis after thoroughly considering the patient's overall facial and dental characteristics, the expected duration of treatment, costs, patient preferences, and the orthodontist's experience. This article reports the treatment of a patient with a maxillary premolar-molar transposition in the permanent dentition that was successfully managed with orthodontic treatment. A girl, aged 10 years 2 months, came for treatment with an ectopic maxillary left premolar. Radiographic analysis indicated a developing complete transposition of the maxillary left premolar. The patient was treated with extraction of the deciduous molar and surgical exposure and ligation of the premolar. Eruption was properly guided, and the correct order of the 2 teeth was restored in the arch. This challenging treatment approach is described in detail, including the mechanics used to align the ectopic premolar. Early treatment can, in many cases, prevent a molar-premolar transposition. PMID:23561418

Cannavale, Rosangela; Matarese, Giovanni; Isola, Gaetano; Grassia, Vincenzo; Perillo, Letizia

2013-04-01

 
 
 
 
181

Immunohistochemistry comparing endoscopic vein harvesting vs. open vein harvesting on saphenous vein endothelium  

Science.gov (United States)

Objective The present study attempts to compare the immunohistochemistry (IHC) of von Willebrand factor (vWf) , endothelial cadherin, Caveolin and endothelial Nitric Oxide Synthase (eNOS) in VasoView Endoscopic Vein Harvesting (EVH) versus traditional Open Vein Harvesting (OVH) techniques for Coronary Artery Bypass Graft (CABG) Surgery performed in Javad al Aemeh Hospital of Mashhad, Iran in 2013,. Methods and materials Forty-seven patients were scheduled for CABG (30 EVH and 17 OVH) among whom patients with relatively same gender and similar age were selected. Three separate two cm vein samples were harvested from each patient’s saphenous vein. Each portion was collected from distal, middle and proximal zones of the saphenous vein. The tissues were deparaffinized, and antigen retrieval was done using EZ-retriever followed by an immunohistochemistry evaluation with vWf, e-cadherin, Caveolin and eNOS. In addition, demographic questioner as of Lipid profile, FBS, BMI, and cardiovascular risk factors were collected. Data analyses, including parametric and nonparametric tests were undertaken using the SPSS 16 software. A P value??0.05). Qualitative report of vWf, e-cadherin, Caveolin and eNOS reveals no significant difference between the EVH and OVH (P?>?0.05). Conclusion This study indicates that VasoView EVH technique causes no endothelial damage in comparison with OVH. This study could be a molecular confirmation for the innocuous of EVH technique. PMID:24938544

2014-01-01

182

Leiomyosarcoma of the popliteal vein  

International Nuclear Information System (INIS)

Primary vascular leiomyosarcomas are rare tumors arising from the media of vessel walls, involving the extremities in about one third of reported cases, and the popliteal vein even less frequently. We report a case of popliteal vein leiomyosarcoma in a 62-year old man who presented with leg pain and edema 4 weeks following spine surgery. Findings on ultrasound, MRI and CT angiography are reviewed, with particular emphasis on the value of CT angiography in fully evaluating the extent of the mass and in assisting percutaneous biopsy. (orig.)

183

Leiomyosarcoma of the popliteal vein  

Energy Technology Data Exchange (ETDEWEB)

Primary vascular leiomyosarcomas are rare tumors arising from the media of vessel walls, involving the extremities in about one third of reported cases, and the popliteal vein even less frequently. We report a case of popliteal vein leiomyosarcoma in a 62-year old man who presented with leg pain and edema 4 weeks following spine surgery. Findings on ultrasound, MRI and CT angiography are reviewed, with particular emphasis on the value of CT angiography in fully evaluating the extent of the mass and in assisting percutaneous biopsy. (orig.)

Killoran, Timothy P.; Goodwin, Douglas W. [Department of Radiology, Dartmouth Medical School, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH 03756 (United States); Wells, Wendy A. [Department of Pathology, Dartmouth Medical School, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH 03756 (United States); Barth, Richard J. [Department of Surgery, Dartmouth Medical School, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH 03756 (United States)

2003-03-01

184

Content, composition, and bioactivity of the essential oils of three basil genotypes as a function of harvesting.  

Science.gov (United States)

A study was conducted to evaluate the effect of cut on biomass productivity, oil content, composition, and bioactivity of Ocimum basilicum L. (cvs. German and Mesten) and Ocimum sanctum L. (syn. O. tenuiflorum L.) (cv. Local) in Mississippi. Yields of basil herbage and essential oil were high and comparable to those reported in the literature. Essential oil content of O. basilicum cv. German varied from 0.40 to 0.75%, the oil content of cv. Mesten varied from 0.50 to 0.72%, and the oil content of cv. Local (of O. sanctum) ranged from 0.17 to 0.50% in air-dried basil. Herbage and essential oil yields of cvs. German and Mesten of O. basilicum increased with the second and then again with the third cut, whereas herbage and oil yields of cv. Local of O. sanctum increased with the third cut relative to the previous cuts. Overall, essential oil yields were 115, 123, and 51 kg/ha for the cvs. German, Mesten, and Local, respectively. The major oil constituents of cvs. German and Mesten (of O. basilicum) were (-)-linalool (30-40%) and eugenol (8-30%), whereas the major oil constituents of cv. Local (of O. sanctum) were eugenol (8-43%) and methylchavicol (15-27%). Essential oils from both species grown in Mississippi showed in vitro activity against Leishmania donovani (IC50 = 37.3-49.6 microg/mL), which was comparable to the activity of commercial oil (IC50 = 40-50 microg/mL). Minor basil oil constituents (+)-delta-cadinene, 3-carene, alpha-humulene, citral, and (-)- trans-caryophyllene had antileishmanial activity, whereas other constituents were ineffective. None of the oil was cytotoxic to mammalian cells. PMID:18095647

Zheljazkov, Valtcho D; Cantrell, Charles L; Tekwani, Babu; Khan, Shabana I

2008-01-23

185

Vaginal vein thrombosis in pregnancy.  

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Vaginal vein thrombosis in a pregnant woman is reported. This entity should be differentiated from vaginal arteriovenous fistula which may cause severe antepartum, intrapartum and post-partum haemorrhage. The humoral and mechanical factors which favour the occurrence of varicosities and thrombosis are briefly described. Surgical management is suggested as being both simple and effective.

Gitstein, S.; Ballas, S.; Peyser, M. R.

1983-01-01

186

Leiomyosarcoma of the Adrenal Vein  

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Full Text Available Leiomyosarcoma of the adrenal gland is extremely rare in the literature. We present a patient with an adrenal leiomyosarcoma originating from the adrenal vein, the pathologic findings and management. A 66-year-old man who was a hepatitis B virus carrier was found to have a huge left suprarenal mass on sonography and computed axial tomography. A huge tumor in the left suprarenal area with a markedly engorged adrenal vein was found during an adrenalectomy. The tumor thrombus extended into the renal vein, close to the inferior vena cava. The left adrenal gland with the whole tumor thrombus was removed completely. Microscopically, the adrenal gland was compressed but not invaded by the spindle cell tumor, which was composed of interlacing fascicles of neoplastic smooth muscle cells. The tumor was localized within the adrenal vein and arose from the venous wall. The patient had no local recurrence for 18 months after en bloc excision of the tumor. We suggest that en bloc excision with a clear and adequate surgical margin is the most important cure procedure for adrenal leiomyosarcoma.

I-Hung Shao

2012-10-01

187

Congestive index of portal vein  

International Nuclear Information System (INIS)

In patients with portal hypertension, the blood flow volume is maintained despite decreased blood flow velocity due to enlargement of the vascular cross sectional area. Thus, the 'congestion index' of the portal vein, which is the ratio between the cross sectional area (cm2) and the blood flow velocity (cm/sec) determined by a Doppler ultrasonography, may be a sensitive index by which to assess portal hypertension. We performed Doppler ultrasonography on 24 normal subjects, 14 patients with biopsy proved chronic active hepatitis and 55 patients with liver cirrhosis in order to assess the diagnostic value of the congestion index. The cross sectional area of the portal vein was significantly enlarged and the mean blood flow velocity was significantly reduced in patients with liver cirrhosis compared with controls. However, the blood flow volume was no difference. The congestion index of the portal vein was significantly increased in patients with liver cirrhosis (0.113+0.035) compared with patients with chronic active hepatitis(0.078+0.029) (p<0.001) and controls (0.053+0.016) (p<0.001). The sensitivity, specificity and predictability of the congestion index for detection of patients with the cirrhosis of the liver were 76.4%, 100% and 100% respectively, when the normal range was set at mean+2SD. The results suggest that the congestion index of the portal vein may pla a significant role in diagnosis of portal hypertensive patients

188

Efficiency of n-octyl-acetate, 2-heptanone and citronellal in repelling bees from basil (Ocimum sellowii - Labiatae)  

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The objective of this study was to test repellent substances for honey bees, Apis mellifera, for basil, Ocimum sellowii, and to study the most frequent insects in this crop as well as its behaviors. The frequency of honey bees did not decrease with the application of n.octyl.acetate, citronellal and 2.heptanone, used as repellents, in the concentrations 2.5, 5.0, 7.5 and 10.0% diluted in water. However, when the products (20%) were diluted in water (75%) and glycerine (5%) were effective in r...

Darclet Teresinha Malerbo-Souza; Regina Helena Nogueira-Couto

2004-01-01

189

Transcutaneous transsplenic catheterization of the splenic vein  

International Nuclear Information System (INIS)

The authors have developed a method for transcutaneous transsplenic catheterizaton of the portal vein basin and used this method in clinical studies. This method permits a higher quality of spot splenoportography, selective catheterization and embolization of the gastric veins in bleedings from varicose veins of the esophagus in the patients in whom catheterization of the portal vien basin via the transcutaneous transhepatic approach is impossible because of liver tumors of occulusive stenotic deformation of the portal vein

190

Renal arcuate veins: new microangiogrphic observations  

International Nuclear Information System (INIS)

Standard references state that arcuate veins at the corticomedullary junction form continuous arcades. Because some preliminary anatomic observations seemed to disagree with this traditional teaching, the arcuate veins were systematically studied in normal human kidneys. Microangiographic studies indicate that, unlike the occasional anastomoses that exist between proximal interlobar and segmental veins, arcuate venous communications in human are extremely rare. Arcuate veins, like the corresponding arteries, should be considered end vessels

191

A Reappraisal of Saphenous Vein Grafting  

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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...

Yuan Shi-Min; Jing Hua

2011-01-01

192

'Closed' in Situ Vein Infrainguinal Bypass  

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The autologous greater saphenous vein is considered to be the best bypass material for below knee femoropopliteal and femorocnual arterial reconstructions . . The history of the greater saphenous vein arterial bypass in humans started in 1949, with its first introduction by Kunlin. Upto 1959, when Rob performed the first in situ saphenous vein bypass, the reversed saphenous vein technique of Kunlin was the standard procedure. The first publication about the in situ bypass wa...

Dijk, L. C.

1996-01-01

193

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.

194

What Are the Signs and Symptoms of Varicose Veins?  

Science.gov (United States)

... Twitter. What Are the Signs and Symptoms of Varicose Veins? The signs and symptoms of varicose veins include: ... signs of other, more serious conditions. Complications of Varicose Veins Varicose veins can lead to dermatitis (der-ma- ...

195

An Evaluation of Frequency Transposition for Hearing-Impaired School-Age Children  

Science.gov (United States)

A key objective when fitting hearing aids to children is to maximize the audibility of high frequency speech cues which are critical in the understanding of spoken English. Recent advances in digital signal processing have enabled the development of hearing aids which offer linear frequency transposition as a new way of accessing these important…

Smith, Jenny; Dann, Marilyn; Brown, P. Margaret

2009-01-01

196

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

197

Quantitatively increased somatic transposition of transposable elements in Drosophila strains compromised for RNAi.  

Science.gov (United States)

In Drosophila melanogaster, small RNAs homologous to transposable elements (TEs) are of two types: piRNA (piwi-interacting RNA) with size 23-29nt and siRNA (small interfering RNA) with size 19-22nt. The siRNA pathway is suggested to silence TE activities in somatic tissues based on TE expression profiles, but direct evidence of transposition is lacking. Here we developed an efficient FISH (fluorescence in Situ hybridization) based method for polytene chromosomes from larval salivary glands to reveal new TE insertions. Analysis of the LTR-retrotransposon 297 and the non-LTR retroposon DOC shows that in the argonaut 2 (Ago2) and Dicer 2 (Dcr2) mutant strains, new transposition events are much more frequent than in heterozygous strains or wild type strains. The data demonstrate that the siRNA pathway represses TE transposition in somatic cells. Nevertheless, we found that loss of one functional copy of Ago2 or Dcr2 increases somatic transpositions of the elements at a lower level depending on the genetic background, suggesting a quantitative role for RNAi core components on mutation frequency. PMID:23940807

Xie, Weiwu; Donohue, Ryan C; Birchler, James A

2013-01-01

198

Preclinical Class 1 Integron with a Complete Tn402-Like Transposition Module?  

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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.

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

2011-01-01

199

Carbon dioxide embolism during endoscopic vein harvesting.  

Science.gov (United States)

Endoscopic vein harvesting (EVH) is becoming common for the patients undergoing coronary artery bypass grafting. Using carbon dioxide insufflations during the vein harvest can produce rare but catastrophic CO(2) embolism. We report a case of massive right atrial CO(2) embolism due to femoral vein injury which occurred during the performance of a routine EVH procedure. PMID:18381362

Tamim, Muhammed; Omrani, Maher; Tash, Adel; El Watidy, Ahmed

2008-08-01

200

Total gastric transposition is better than partial gastric tube esophagoplasty for esophageal replacement in children.  

Science.gov (United States)

Whenever the surgeon uses the stomach as an esophageal substitute, either one of two techniques is generally performed: total gastric transposition or gastric tube esophagoplasty. No existing reports compare the complications associated with these two surgical procedures. The purpose of this study is to review the authors' experience with total gastric transposition and verify whether this technique is superior to gastric tube esophagoplasty in children by comparing the main complications with those reported in the publications of gastric tubes esophagoplasties in the English language literature published in the last 38 years. A total of 35 children underwent total gastric transposition according to the classical technique. Most of these patients (27, or 77.1%) had long gap esophageal atresia. The most frequently observed complications were compared to those reported in nine studies of gastric tube esophagoplasty comprising 184 patients. Mortality and graft failure rates were also compared. Seven patients (20.0%) presented with leaks, all of which closed spontaneously. Six children were reoperated, three experienced gastric outlet obstruction secondary to axial torsion of the stomach placed in the retrosternal space and the other three experienced delayed gastric emptying that required revision of the piloroplasty. There were two deaths (5.7%) and no graft failure. Strictures were observed in five patients (14.2%) and all of these were resolved with endoscopic dilatations. Six patients had diarrhea that spontaneously resolved. In the late follow-up period, all patients were on full feed and thriving well. The comparisons with gastric tube patients demonstrated that the total gastric transposition group presented with significantly less leaks and strictures (P = 0.0001 and 0.001, respectively). The incidence of death and graft failure was not statistically different. In conclusion, gastric transposition is as a simple technical procedure for esophageal replacement in children with satisfactory results, and is superior to gastric tube esophagoplasty. PMID:18197943

Tannuri, U; Tannuri, A C A; Gonçalves, M E P; Cardoso, S R

2008-01-01

 
 
 
 
201

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

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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 Matche...

Randa Boukhris Trabelsi; Alima Damak Masmoudi; Dorra Sellami Masmoudi

2013-01-01

202

Blood sampling from adrenal gland vein  

International Nuclear Information System (INIS)

Adrenal gland vein sampling is an interventional method to get the blood samples from the adrenal gland vein. The blood is obtained via a catheter which is selectively inserted in the adrenal gland vein. This technique is mainly used to be diagnostic for primary hyperaldosteronism. A full knowledge of the anatomy and variations of the adrenal gland vein, serious preoperative preparation and skilled catheterization manipulation are necessary for obtaining sufficient blood sample and for reducing the occurrence of complications. Providing the physicians with definite diagnostic evidence and being technically feasible, adrenal gland vein sampling should become one of the routine examinations for clarifying the cause of primary hyperaldosteronism. (authors)

203

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

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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

204

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

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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

205

Radiological evaluation of congenital pulmonary vein obstruction  

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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 obstructionlmonary vein obstruction

206

[Morphological characteristics of the human iliac veins].  

Science.gov (United States)

Intravascular formations of the iliac veins, their anastomoses with the spinal veins have been studied in 255 preparations obtained from fetuses, children and mature persons of both sex. The methods applied are: macro- and microscopic preparation, injections, histological hematoxylin--eosin staining after van Gieson, Weigert and Mallory. It has been stated that morphological apparatus regulating blood stream in the pelvic veins are the intravascular formations, on the one hand, and anastomoses of these veins with the spinal veins, on the other hand. The intravascular formations are subjected to age and sex changeability. Individual changeability of the pelvic and spinal veins connections is demonstrated in three variants: magistral, mixed and scattered. The anastomoses and intravascular formations in the pool of the iliac veins form a complex that is capable to regulate haemodynamic of this region of the venous system. PMID:7458694

Siurkov, O G; Protasov, V Ia

1980-11-01

207

The angiographic demonstration of hepatic vein obstruction  

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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

208

Central vein stenosis: a nephrologist's perspective.  

Science.gov (United States)

Central vein stenosis is commonly associated with placement of central venous catheters and devices. Central vein stenosis can jeopardize the future of arteriovenous fistula and arteriovenous graft in the ipsilateral extremity. Occurrence of central vein stenosis in association with indwelling intravascular devices including short-term, small-diameter catheters such as peripherally inserted central catheters, long-term hemodialysis catheters, as well as pacemaker wires, has been recognized for over two decades. Placement of multiple catheters, longer duration, location in subclavian vein, and placement on the left-hand side of neck seem to predispose to the development of central vein stenosis. Endothelial injury with subsequent changes in the vessel wall results in development of microthrombi, smooth muscle proliferation, and central vein stenosis. Central vein stenosis is often asymptomatic in nondialysis patients, but can result in edema of ipsilateral extremity and breast when challenged by increased flow from an arteriovenous fistula or arteriovenous graft. Bilateral central vein stenosis or superior vena cava stenosis can produce a clinical picture of superior vena cava syndrome, associated with engorgement of face and neck. Endovascular interventions are the mainstay of management of central vein stenosis. Percutaneous angioplasty and stent placement for elastic and recurring lesions can restore the functionality of the vascular access, at least temporarily. Frequent or multiple interventions are usually required. In recalcitrant cases, surgical bypass of the obstruction is an option. In resistant cases with severe symptoms, occlusion of the functioning vascular access will usually provide relief of symptoms. Further study of mechanisms of development of central vein stenosis and search for a targeted therapy is likely to lead to better ways of managing central vein stenosis. Prevention of central vein stenosis is the key to avoid access failure and other complications from central vein stenosis and relies upon avoidance of central vein stenosis placement and timely placement of arteriovenous fistula in prospective dialysis patient. PMID:17244123

Agarwal, Anil K; Patel, Bhairavi M; Haddad, Nabil J

2007-01-01

209

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

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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

210

Deep venous drainage in great cerebral vein (vein of Galen) absence and malformations  

International Nuclear Information System (INIS)

We report two types of venous patterns associated with great cerebral vein (vein of Galen) absence or unavailability. Developmental venous anomalies or vein of Galen arteriovenous malformations (VGAM) serve as an illustrative material. A diencephalic pattern that collects the thalamo-striate veins into the tentorial sinus is recognized in most VGAM. A telencephalic arrangement connecting the striate veins with the rostral afferents to the basal vein is less frequent. Both patterns reproduce embryonic stages preceeding the development of the great cerebral vein, thus confirming Raybaud's hypothesis that in VGAM the pouch is not the vein of Galen but the medial vein of the prosencephalon. The prognostic value of each pattern can then be appreciated and the therapeutic strategies rationalized; some unexplained complications of the venous approach for non-selected VGAM can thus be avoided. (orig.)

211

Deep venous drainage in great cerebral vein (vein of Galen) absence and malformations  

Energy Technology Data Exchange (ETDEWEB)

We report two types of venous patterns associated with great cerebral vein (vein of Galen) absence or unavailability. Developmental venous anomalies or vein of Galen arteriovenous malformations (VGAM) serve as an illustrative material. A diencephalic pattern that collects the thalamo-striate veins into the tentorial sinus is recognized in most VGAM. A telencephalic arrangement connecting the striate veins with the rostral afferents to the basal vein is less frequent. Both patterns reproduce embryonic stages preceeding the development of the great cerebral vein, thus confirming Raybaud's hypothesis that in VGAM the pouch is not the vein of Galen but the medial vein of the prosencephalon. The prognostic value of each pattern can then be appreciated and the therapeutic strategies rationalized; some unexplained complications of the venous approach for non-selected VGAM can thus be avoided. (orig.).

Lasjaunias, P.; Garcia-Monaco, R.; Rodesch, G.; Terbrugge, K. (Hopital Bicetre, 94 - Kremlin Bicetre (France). Unite de Neuroradiologie Vasculaire Diagnostique et Therapeutique)

1991-06-01

212

Bigeminal pulmonary vein ectopy suppressed by pulmonary vein isolation.  

Science.gov (United States)

A 58-year-old man with atrial fibrillation underwent pulmonary vein (PV) isolation (PVI). Bigeminal atrial premature beats persisted from the beginning of the PVI. The cardiac recordings from a basket catheter (BC) revealed the PV ectopic origin in the distal right superior PV. Successful PVI with the guidance of BC was confirmed by the appearance of concealed ectopy. Surprisingly, the PV ectopy completely disappeared immediately after the successful PVI. The findings suggest that the generation of PV trigger is sometimes dependent on left atrial input and that the underlying mechanism of the PV trigger may have been triggered activity or reentry. PMID:18360071

Yamada, Takumi; Murakami, Yoshimasa; Toyama, Junji; Murohara, Toyoaki

2008-01-01

213

Efficiency of n-octyl-acetate, 2-heptanone and citronellal in repelling bees from basil (Ocimum sellowii - Labiatae  

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Full Text Available The objective of this study was to test repellent substances for honey bees, Apis mellifera, for basil, Ocimum sellowii, and to study the most frequent insects in this crop as well as its behaviors. The frequency of honey bees did not decrease with the application of n.octyl.acetate, citronellal and 2.heptanone, used as repellents, in the concentrations 2.5, 5.0, 7.5 and 10.0% diluted in water. However, when the products (20% were diluted in water (75% and glycerine (5% were effective in repelling those bees of the basil flowers for a period of 20 minutes. The flower lasted, on average, 30 h from the bud phase until the flower withered. The flowers number opened by inflorescence was, on average, 5.65 flowers, and the inflorescence presented, on average, 160 flowers-buds. The basil was visited mainly for the honey bee (98.0%, followed by Augochloropsis electra bee - Halictidae (2.0% and visits sporadics of Diptera and Lepidoptera, collected only nectar. The honey bee frequency increased during the day to 14:00, decreasing soon after, accompanying the curve of the temperature sets registered in the experiment days.O objetivo do experimento foi estudar a polinização em manjericão (Ocimum sellowii, a fim de verificar sua atratividade para as abelhas Apis mellifera, os insetos mais freqüentes, bem como seus comportamentos e testar substâncias repelentes para as abelhas A. mellifera. A flor durou, em média, 30 horas, desde sua abertura até o murchamento. O número de flores abertas por inflorescência foi, em média, 5,65 flores, sendo que a inflorescência possuía, em média, 160 botões florais. O manjericão foi visitado quase que exclusivamente pela abelha A. mellifera africanizada (98,0%, seguida pela abelha Augochloropsis electra-Halictidae (2,0% e visitas esporádicas de dípteros e lepidópteros, sendo que todos coletavam apenas néctar. A freqüência da abelha africanizada aumentou no decorrer do dia até às 14 horas, diminuindo em seguida, acompanhando a curva da temperatura ambiente registrada nos dias do experimento. As abelhas africanizadas demoraram de 1 a 3 segundos em cada flor. A freqüência das abelhas africanizadas não diminuiu com a aplicação dos produtos n.octyl.acetato, citronellal e 2.heptanona, usados como repelentes, nas concentrações 2,5, 5,0, 7,5 e 10,0%, diluídos apenas em água. Entretanto, quando os produtos (20% foram diluídos em água (75% e glicerina (5%, foram efetivos em repelir essas abelhas das flores de manjericão, por um período de 20 minutos.

Darclet Teresinha Malerbo-Souza

2004-03-01

214

Efficiency of n-octyl-acetate, 2-heptanone and citronellal in repelling bees from basil (Ocimum sellowii - Labiatae)  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese O objetivo do experimento foi estudar a polinização em manjericão (Ocimum sellowii), a fim de verificar sua atratividade para as abelhas Apis mellifera, os insetos mais freqüentes, bem como seus comportamentos e testar substâncias repelentes para as abelhas A. mellifera. A flor durou, em média, 30 h [...] oras, desde sua abertura até o murchamento. O número de flores abertas por inflorescência foi, em média, 5,65 flores, sendo que a inflorescência possuía, em média, 160 botões florais. O manjericão foi visitado quase que exclusivamente pela abelha A. mellifera africanizada (98,0%), seguida pela abelha Augochloropsis electra-Halictidae (2,0%) e visitas esporádicas de dípteros e lepidópteros, sendo que todos coletavam apenas néctar. A freqüência da abelha africanizada aumentou no decorrer do dia até às 14 horas, diminuindo em seguida, acompanhando a curva da temperatura ambiente registrada nos dias do experimento. As abelhas africanizadas demoraram de 1 a 3 segundos em cada flor. A freqüência das abelhas africanizadas não diminuiu com a aplicação dos produtos n.octyl.acetato, citronellal e 2.heptanona, usados como repelentes, nas concentrações 2,5, 5,0, 7,5 e 10,0%, diluídos apenas em água. Entretanto, quando os produtos (20%) foram diluídos em água (75%) e glicerina (5%), foram efetivos em repelir essas abelhas das flores de manjericão, por um período de 20 minutos. Abstract in english The objective of this study was to test repellent substances for honey bees, Apis mellifera, for basil, Ocimum sellowii, and to study the most frequent insects in this crop as well as its behaviors. The frequency of honey bees did not decrease with the application of n.octyl.acetate, citronellal and [...] 2.heptanone, used as repellents, in the concentrations 2.5, 5.0, 7.5 and 10.0% diluted in water. However, when the products (20%) were diluted in water (75%) and glycerine (5%) were effective in repelling those bees of the basil flowers for a period of 20 minutes. The flower lasted, on average, 30 h from the bud phase until the flower withered. The flowers number opened by inflorescence was, on average, 5.65 flowers, and the inflorescence presented, on average, 160 flowers-buds. The basil was visited mainly for the honey bee (98.0%), followed by Augochloropsis electra bee - Halictidae (2.0%) and visits sporadics of Diptera and Lepidoptera, collected only nectar. The honey bee frequency increased during the day to 14:00, decreasing soon after, accompanying the curve of the temperature sets registered in the experiment days.

Darclet Teresinha, Malerbo-Souza; Regina Helena, Nogueira-Couto.

2004-03-01

215

Post-accession transposition of EU law in the new member states: a cross-country comparison  

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Full Text Available In this paper we examine the transposition of European Union (EU legislation in the twelve 'new' member states during the post-accession stage. To this end, we scrutinize the number of formal notice letters received by the new member states in the period from 2004 to 2007. Our analysis shows that there is considerable variation in the transposition behaviour. While Lithuania, Hungary as well as Slovenia are the best performers, the transposition of EU legislation is less effective in Bulgaria, the Czech Republic, and particularly Romania. The comparatively high number of transposition shortcomings by this latter country group clearly indicates that even the process of incorporating European provisions into domestic law is far from unproblematic, which suggests the existence of even more substantive problems with the practical side of implementation. The results of our descriptive analysis show that transposition failure is predominantly related to the degree of trade with the EU, bureaucratic capacity and pre-accession policy alignment. We conclude that in the intermediate-term increasing bureaucratic capacities and stronger economic ties with the EU may help to reduce transposition failures.

Jale Tosun

2009-12-01

216

Augmented vertical rectus [corrected] transposition for the treatment of strabismus in Möbius syndrome.  

Science.gov (United States)

Möbius syndrome is a rare congenital disorder characterized by bilateral facial nerve palsy and abducens nerve palsy. It is associated with a wide spectrum of systemic and ocular manifestations; esotropia is commonly the reason for ophthalmic referral. There are few published studies in the literature on strabismus surgery in Möbius syndrome. An augmented vertical rectus muscle transposition in which lateral fixation sutures are used on the transposed vertical rectus muscles (Foster augmentation) has been used to correct esotropia caused by severe sixth nerve palsy and type 1 Duane syndrome. We describe the surgical outcome after treating moderate- to large-angle esotropia in 3 patients with Möbius syndrome with the augmented vertical rectus muscle transposition. PMID:22153406

Sun, Lisa L; Gole, Glen A

2011-12-01

217

Early and multiple Ac transpositions in rice suitable for efficient insertional mutagenesis.  

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A GFP excision assay was developed to monitor the excision of Ac introduced into rice by Agrobacterium-mediated transformation. The presence of a strong double enhancer element of the CaMV 35S promoter adjacent to the Ac promoter induced very early excision, directly after transformation into the plant cell, exemplified by the absence of Ac in the T-DNA loci. Excision fingerprint analysis and characterization of transposition events from related regenerants revealed an inverse correlation bet...

Greco, R.; Ouwerkerk, P. B. F.; Taal, A. J. C.; Favalli, C.; Beguiristain, T.; Puigdomonech, P.; Colombo, L.; Hoge, J. H. C.; Pereira, A.

2001-01-01

218

Correction of incomplete penoscrotal transposition by a modified Glenn-Anderson technique  

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Full Text Available Purpose: Penoscrotal transposition may be partial or complete, resulting in variable degrees of positional exchanges between the penis and the scrotum. Repairs of penoscrotal transposition rely on the creation of rotational flaps to mobilise the scrotum downwards or transpose the penis to a neo hole created in the skin of the mons-pubis. All known techniques result in complete circular incision around the root of the penis, resulting in severe and massive oedema of the penile skin, which delays correction of the associated hypospadias and increases the incidence of complications, as the skin vascularity and lymphatics are impaired by the designed incision. A new design to prevent this post-operative oedema, allowing early correction of the associated hypospadias and lowering the incidence of possible complications, had been used, whose results were compared with other methods of correction. Materials and Methods: Ten patients with incomplete penoscrotal transposition had been corrected by designing rotational flaps that push the scrotum back while the penile skin remains attached by small strip to the skin of the mons-pubis. Results : All patients showed an excellent cosmetic outcome. There was minimal post-operative oedema and no vascular compromise to the penile or scrotal skin. Correction of associated hypospadias can be performed in the same sitting or in another sitting, without or with minimal complications. Conclusion: This modification, which maintains the penile skin connected to the skin of the lower abdomen by a small strip of skin during correction of penoscrotal transposition, prevents post-operative oedema and improves healing with excellent cosmetic appearance, allows one-stage repair with minimal complications and reduce post-operative complications such as urinary fistula and flap necrosis.

Saleh Amin

2010-01-01

219

Transposition of Tn5096 and other IS493 derivatives in Streptomyces griseofuscus.  

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Tn5096 was constructed by inserting an apramycin resistance gene, aac(3)IV, into IS493 from Streptomyces lividans. By using conventional and pulsed-field gel electrophoresis, Tn5096 and related transposons were shown to insert into many different locations in the Streptomyces griseofuscus chromosome and in two linear plasmids. On insertion into the target site CANTg, 3 bp appeared to be duplicated. Independent transpositions were obtained by delivery of the transposon from a temperature-sensi...

Solenberg, P. J.; Baltz, R. H.

1991-01-01

220

Clinical features and surgical outcomes of complete transposition of the great arteries  

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&lt;B&gt;Purpose:&lt;/B&gt; This single-center study aimed to assess the clinical features and surgical approaches and outcomes of complete transposition of the great arteries (TGA). &lt;B&gt;Methods:&lt;/B&gt; TGA patients who had undergone surgical correction at the Kyungpook National University Hospital from January 2000 to December 2010, were retrospectiv...

Hee Joung Choi; Yeo Hyang Kim; Myung Chul Hyun; Sang Bum Lee; Joon Yong Cho

2012-01-01

 
 
 
 
221

A selective sweep associated with a recent gene transposition in Drosophila miranda.  

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In Drosophila miranda, a chromosome fusion between the Y chromosome and the autosome corresponding to Muller's element C has created a new sex chromosome system. The chromosome attached to the ancestral Y chromosome is transmitted paternally and hence is not exposed to crossing over. This chromosome, conventionally called the neo-Y, and the homologous neo-X chromosome display many properties of evolving sex chromosomes. We report here the transposition of the exuperantia1 (exu1) locus from a ...

Yi, S.; Charlesworth, B.

2000-01-01

222

Congenital Agenesis of the Portal Vein: Case  

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Portal vein agenesis is an uncommon anomaly in which the venous drainage from the intestine and spleen bypasses the liver and drains into the systemic veins through shunts. We report a case of a newborn with a prenatal diagnosis of congenital absence of the portal vein, as well as a medical literature review about the main radiological features of this condition and the different associated venous shunts.

223

Personal Authentication System using Hand Vein Biometric  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 no...

Sathish, G.; Saravanan, Dr S. V.; Narmadha, Dr S.; Uma Maheswari, Dr S.

2012-01-01

224

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

225

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

226

Superior rectus transposition combined with medial rectus recession for Duane syndrome and sixth nerve palsy  

Science.gov (United States)

Objective Vertical rectus transposition (VRT) is used to treat abduction limitation, but new vertical deviations and anterior segment ischemia are concerns. Johnston and Crouch described superior rectus transposition (SRT), a procedure in which only the superior rectus muscle is transposed temporally. We describe our results using augmented temporal SRT with adjustable medial rectus muscle recession (MRc) for treatment of Duane syndrome I (DS) and sixth nerve palsy. Methods Retrospective surgical case review of patients undergoing the SRT procedure. Pre- and post-operative orthoptic measurements were recorded. Minimum follow-up was 6 weeks. Main outcome measures included angle of esotropia in primary position and the angle of head turn. Secondary outcomes included duction limitation, stereopsis, and new vertical deviations. Results The review identified seventeen patients (10 with DS and 7 with sixth nerve palsy). SRT+MRc improved esotropia [from 44 PD to 10.1 PD (pmedial rectus recession in patients with severe abduction imitation who require transposition surgery. SRT+MRc improved esotropia, head position, abduction limitation, and stereopsis without inducing torsional diplopia. PMID:22332212

Mehendale, Reshma A.; Dagi, Linda R.; Wu, Carolyn; Ledoux, Danielle; Johnston, Suzanne; Hunter, David G.

2013-01-01

227

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

228

Quartz crystallographic and morphologic fabrics during folding/transposition in mylonites  

Science.gov (United States)

Quartz grain shape fabrics (GSF) and c-axis lattice preferred orientation (LPO) were investigated in folded quartz ribbons with variable fold geometry in low metamorphic-grade granitic mylonites from northwestern Argentina. The folds, which vary from open to isoclinal, show an asymmetric short limb-long limb geometry developed simultaneously with the quartz fabrics during progressive simple shear. GSF shows a consistent obliquity relative to the bulk shear plane throughout the folded ribbons. GSF inclination varies between 25° and 45° oblique to the shear plane, indicating that relatively small finite strain increments ( ?˜1.2) are attained before the GSF regeneration. In contrast, the c-axis preferred orientation varies throughout the folded ribbons. Unfolded ribbons and long limbs of folds show a typical c-axis maximum near the shear plane pole, while short limbs of tight and isoclinal folds show a c-axis maximum nearly orthogonal to that of long limbs. This pattern of domainal LPO is maintained in thickened ribbons derived from folding and transposition. This indicates that the GSF regeneration is comparatively much faster than a cycle of folding/transposition. Conversely, the LPO regeneration is much slower. We conclude that folding/transposition is a mechanism for development of domainal quartz LPO in kinematic frameworks with dominant simple shear.

Hongn, F. D.; Hippertt, J. F.

2001-01-01

229

Sri Lankan cassava mosaic virus replication associated protein (Rep) triggers transposition of IS426 in Agrobacterium.  

Science.gov (United States)

We report a high rate of IS426 transposition in Agrobacterium tumefaciens in the presence of the Sri Lankan cassava mosaic virus (SLCMV) replication associated protein gene (Rep). Upon conjugal transfer of the binary plasmid pCam-SLCMV-Rep with the SLCMV Rep gene in the sense orientation under the transcriptional control of the Cauliflower mosaic virus (CaMV) 35S promoter into the A. tumefaciens vir helper strain EHA105, the binary plasmid size increased in all 15 transconjugants studied. Southern blot analysis of the transconjugants with the binary plasmid probe revealed that the 35S promoter and its proximal sequences in the T-DNA were rearranged. The rearranged sequences harboured the 1.3-kb IS426 element of A. tumefaciens. Conjugal mobilisation of the binary plasmid pCam-SLCMV-asRep, with the SLCMV Rep gene in antisense orientation, did not cause DNA rearrangement in EHA105. A mutated SLCMV Rep, in which a frame shift mutation caused retention of only 27 of the 351 amino acids, did not cause IS426 transposition in A. tumefaciens. These findings show that the multifunctional begomoviral Rep protein of SLCMV triggers transposition of IS426 in Agrobacterium. PMID:25135797

Resmi, Thulasi R; Nivedhitha, Sivarajan; Karthikeyan, Chockalingam; Veluthambi, Karuppannan

2014-11-01

230

Transposition of the Zorro2 retrotransposon is activated by miconazole in Candida albicans.  

Science.gov (United States)

Zorro2 is a member of a non-long terminal repeat (LTR) retrotransposon family in Candida albicans, but as yet no clear evidence has been provided to establish either transcription or transposition activity for Zorro2. In this study, the relative expression changes of two open reading frames in Zorro2, ORF19.7274 and ORF19.7275, were examined in response to miconazole (MCZ), and were found to be increased by this treatment. As well, the copy number and the transcripts of Zorro2 in MCZ-induced resistant daughter strains were increased compared to the parental strain, indicating that transposition of Zorro2 occurred during long-term MCZ treatment. Intriguingly, the transcription activity of Zorro2 retrotransposons was significantly inhibited when the cells were treated with MCZ together with antioxidant N-acetyl-L-cysteine (NAC). As both the level of intracellular reactive oxygen species (ROS) and the expression of genes involving DNA repair activated by MCZ were reduced when combined with the treatment of NAC, we propose that the damage caused by accumulation of ROS under MCZ stress is a major reason for the transcription and transposition activation of the Zorro2 retrotransposon. PMID:24389479

Zhu, Chun-xiang; Yan, Lan; Wang, Xiao-juan; Miao, Qi; Li, Xing-xing; Yang, Feng; Cao, Yong-bing; Gao, Ping-hui; Bi, Xin-ling; Jiang, Yuan-ying

2014-01-01

231

Transposition and Didactic Mediation at Fractions Teaching Transposição e Mediação Didática no Ensino de Frações  

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Full Text Available In the context of collaborative research focusing on the practices of fifth grade teachers, the present study presents an analysis of some curricular documents and textbooks on one specific subject: fractions. Considering the specificity of school knowledge, we aim to identify the objectives and the approaches to teaching this subject as indicated in curricular documents. Using the notions of didactic transposition and didactic mediation, we have identified some curricular instances that influence the transposition processes, seeking to exemplify their complexity. Keywords: Collaborative Research. Fractions. Didactic Transposition.No contexto de uma pesquisa colaborativa com foco principal na análise de práticas docentes de professores de matemática na quinta série escolar, apresentamos no presente uma análise de documentos curriculares e de textos didáticos atuais, centrada em um objeto de ensino, as frações. A partir da consideração da especificidade do conhecimento escolar, visamos identificar os objetivos didáticos e as abordagens indicadas nos textos curriculares em relação a este objeto de ensino. Através das noções de transposição e de mediação didática, identificamos as instâncias curriculares presentes nos processos de transposição, procurando desta maneira exemplificar a complexidade de tais processos. Palavras-chave: Pesquisa Colaborativa. Ensino de Frações. Transposição Didática.

Diogo Sant’Anna

2008-02-01

232

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.

233

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.

2010-12-01

234

High Rosmarinic Acid Content in Induced Mutants and in in vitro Elicited Sweet Basil (Ocimum basilicum L. Callus  

Directory of Open Access Journals (Sweden)

Full Text Available Seeds of Sweet basil (Ocimum basilicum were exposed to different doses of gamma radiation and several mutants were selected upon morphological aberration. The spectrophotometric measurements showed that some mutants have 1.5 fold increase in the rosmarinic acid content comparing to the wild type. The in vitro shoot culture of mutants was established with fastest callus growth on MS media supplemented with 1 mg L-1 of 2,4-D and 0.25 mg L-1 of KIN. Addition of 5 g L-1 of yeast extract to the culture media led to increase the rosmarinic acid content with 3.4 fold further. The soluble and insoluble leaf protein fraction of mutants were screened on SDS PAGE. The protein patterns demonstrate that the soluble proteins have a more stable pattern than the insoluble proteins.

Adel A.Guirgis

2007-01-01

235

Influence of Zn foliar application on growth characteristics and essential oil yield of basil (Ocimum basilicum L. under salinity stress  

Directory of Open Access Journals (Sweden)

Full Text Available Mass production of medicinal and aromatic plants under hydroponic systems and especially in areas with saline soils is very important. An experiment was conducted to evaluate the interaction of salinity stress and foliar application of zinc (Zn on hydroponically-grown basil (Ocimum basilicum L.. The factorial experiment was arranged as randomized complete blocks design, with two salinity levels (0 and 50 mM NaCl and three Zn levels (0, 100 and 200 mg/L as ZnSO4,7H2O and three replications. Some growth characteristics such as height, leaf surface area, fresh and dry weight of leaves, stem and whole plant, chlorophyll index, harvest index and yield of dry leaves per m2 were measured. After extraction of essential oil, the oil yield was calculated based on oil content in the plant. The results showed that salinity stress adversely affected all growth characteristics as well as essential oil content and yield. Despite the generally accepted hypothesis, Zn application not only had no impact on reducing the negative effects of salinity, but also showed no significant difference between the control plants (no salinity. The highest essential oil content and yield were recorded for control plants. Therefore, it is concluded that under the hydroponics system, basil is sensitive to 50 mM salinity, and Zn foliar application up to 200 mg/L had no positive impact on the reduction of negative effects of salinity. Thus, control nutrient solution has appropriate amount of Zn for salinity stress conditions.

Gh. Gohari

2013-10-01

236

Germination and accelerated aging in the analysis of the physiological quality of seeds of wild basil
Germinação e envelhecimento acelerado na análise da qualidade fisiológica de sementes de alfavaca-cravo
 

Digital Repository Infrastructure Vision for European Research (DRIVER)

The study aimed to contribute to establish parameters for analyzing the physiological quality of seed-clove basil (Ocimum gratissimum L.), since the species is not among those described in the Rules for Testing Seeds. Seeds of basil, clove, gathered on the campus of UENP-CLM, Bandeirantes, PR, analyzed for water content, germination, accelerated aging water and saline tetrazolium and seedling emergence. The temperature of 30 ° C for the germination test and the sand substrate for the emergen...

Natália de Almeida Batista; Caroline Caramano de Lourenço; João Tavares Bueno; Raquel Rejane Bonato Negrelle; Conceição Aparecida Cossa; Cristina Batista De Lima; Jamile Kassem Janani

2011-01-01

237

Who Is at Risk for Varicose Veins?  

Science.gov (United States)

... sitting for a long time, especially with your legs bent or crossed, may raise your risk for varicose veins. This is because staying in one position for a long time may force your veins to work harder to pump blood to your heart. Leg Trauma Previous blood clots or traumatic damage to ...

238

Interventional treatment of iliac vein compression syndrome  

International Nuclear Information System (INIS)

Objective: To explore the clinical significance of interventional treatment of iliac vein compression syndrome (IVCS). Methods: Percutaneous transluminal angioplasty (PTA) was performed in 40 cases. Thirty-three cases underwent endovascular stent implantation and 27 cases underwent second-stage left saphenous vein ligation and stripping and the valves of left femoral veins narrowing. Thirty-one cases were followed-up postoperatively and the duration was 6-66 months (mean 28 months). Results: The dilation of iliac veins was successful in 36 cases and there were god efficacy in all patients when they discharged from hospital. Followed-up during post-operation, all the limbs ulcers were cured and varicose veins disappeared. The skin pigmentation disappeared in 17 of 19 cases and markedly relieved in 2 cases. Left lower limb swelling disappeared in 15 of 17 cases and relieved in 2 cases. Conclusion: There is good efficacy in the interventional treatment of left iliac vein lesions, but second-stage procedures should be performed in secondary lesions of saphenous veins and valves of femoral veins

239

A comparative study of branch retinal vein occlusion and central vein occlusion amongst Malaysian patients.  

Science.gov (United States)

A retrospective study of 95 patients with retinal vein occlusion was carried out to determine the clinical presentation and pattern of distribution in the local Malaysian population. There was no significant difference found in its distribution with regards to sex. In comparing branch retinal vein occlusion with central retinal vein occlusion, no significant differences were found in its racial distribution. Branch retinal vein occlusion occurred more commonly among the older patients whereas the converse is true for central retinal vein occlusion. Reduced vision represents the commonest mode of presentation. Hypertension, diabetes mellitus, hyperlipidaemia and haematological disorders are important associated systemic conditions. PMID:8183164

Teoh, S L; Amarjeet, K

1993-12-01

240

Element transport in veins during serpentinization  

Science.gov (United States)

Serpentinization of ultramafic rocks has wide ranging implications for the petrology, rheology, and petrophysical properties of the oceanic lithosphere. During hydration of the peridotite, fluid-rock ratios and temperature control mineral formation in the veins. We studied a partly serpentinized peridotite from the Santa Elena ophiolite complex in Costa Rica and tracked element mobility during water-rock interaction. Serpentinization of the studied harzburgite is around 30 to 40%, with serpentinization of olivine being more advanced than serpentinization of orthopyroxene. Element mapping and point analyses show that the veins preserve characteristic element distributions within orthopyroxene and olivine, and with distance to orthopyroxene-hosted serpentine veins. With increasing distance from the orthopyroxene the following vein assemblages were observed in olivine: pure serpentine veins, serpentine + brucite veins, serpentine + brucite + magnetite veins. Veins are enriched in SiO2 in the proximity of orthopyroxene suggesting that a net transfer of SiO2 takes place from serpentinizing orthopyroxene to olivine. The magnetite-bearing serpentine veins mostly consist of Mg-rich serpentine (Mg# = 90 - 95) and Fe-rich brucite (Mg# = 70 - 75) finely intergrown. In contrast, the center of these veins contains a thin zone of high-Mg serpentine (Mg# 97), and high-Mg brucite (Mg# 92 - 94) next to magnetite. We infer from thermodynamic calculations that these mineral assemblages are controlled by H2O activity and low SiO2 activities. Within orthopyroxene, serpentine (Mg# = 84 - 89) with an elevated Al2O3 content ( 100 ?m and > 200 ?m, respectively, from the orthopyroxene. We infer that brucite is not stable in close proximity to orthopyroxene due to elevated SiO2 derived from orthopyroxene breakdown. Orthopyroxene serpentinization results in net transfer of Al2O3 into serpentine, but only in the immediate vicinity of the orthopyroxene. Overall, our study indicates that the extent of orthopyroxene serpentinization controls SiO2 and Al2O3 availability in the fluid and therefore the mineral assemblages present in the veins. The net transfer of SiO2 is manifested by the lack of talc in serpentine veins in orthopyroxene and the lack of brucite in serpentine veins proximal to orthopyroxene grain boundaries. Within veins, local transport of Si, Mg and Fe takes place during reaction of serpentine + brucite with H2O to form magnetite + Mg-rich serpentine + Mg-rich brucite.

Schwarzenbach, E. M.; Beard, J. S.; Caddick, M. J.

2013-12-01

 
 
 
 
241

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 signrteries. Despite this dysfunction, no significant decrease in exercise tolerance is found in childhood

242

What Are the Signs and Symptoms of Deep Vein Thrombosis?  

Science.gov (United States)

... Vein Thrombosis » Signs & Symptoms Deep Vein Thrombosis Explore Deep Vein Thrombosis What Is ... Other Names Causes Who Is at Risk Signs & Symptoms Diagnosis Treatments Prevention Living With Clinical Trials Links Spanish Version ...

243

21 CFR 870.4885 - External vein stripper.  

Science.gov (United States)

...2010-04-01 2010-04-01 false External vein stripper. 870.4885 Section...Cardiovascular Surgical Devices § 870.4885 External vein stripper. (a) Identification. An external vein stripper is an extravascular...

2010-04-01

244

Vein Treatments: What to Expect Before, During, and After  

Science.gov (United States)

... procedure to diminish the appearance of spider or varicose veins, your dermatologist may recommend one of the following: ... commonly the best option for younger patients with varicose veins. The walls of their veins are usually too ...

245

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

246

MAPping Out Arteries and Veins  

Science.gov (United States)

Growing evidence suggests that a genetic program specifies the identity of arteries and veins before the onset of circulation. A signaling cascade involving sonic hedgehog (Shh), vascular endothelial growth factor (VEGF), the VEGF receptor 2 (VEGFR2), homeobox proteins Foxc1 and Foxc2, the Notch receptor, and the downstream transcription factor gridlock is required for expression of arterial markers, whereas only a single transcription factor, COUP-TFII (chicken ovalbumin upstream promoter–transcription factor II), has previously been implicated in maintaining venous fate. Recent work has now implicated two competing pathways downstream of VEGFR2 in arterial versus venous specification: Activation of the phospholipase C–? (PLC-?)–mitogen-activated protein kinase (MAPK) pathway acts in arterial specification, whereas the phosphoinositide 3-kinase (PI3K)–Akt pathway acts to allow a venous fate by inhibition of the PLC-?–MAPK pathway. Here, we review this work and discuss how activation of the MAPK signaling cascade could stimulate an arterial fate.

Ryan E. Lamont (Canada;University of Calgary, Calgary AB REV); Sarah Childs (Canada;University of Calgary, Calgary AB REV)

2006-10-03

247

Portal vein reconstruction in adult living donor liver transplantation using cryopreserved vein grafts.  

Science.gov (United States)

No data are available for the management of venous jump or interposition conduits for portal vein (PV) reconstruction in adult living donor liver transplantation (LDLT). The feasibility of using cryopreserved vein grafts as PV conduits was examined. Cryopreserved vein (n = 23) was used as a patch, interposition, or jump graft. The patency results were compared with those of anastomosis without vein patch (n = 217) or those with vein autografts (n = 10). The 5-yr primary and secondary patency rates of the cryopreserved vein grafts were 58% and 79%, respectively. In conclusion, our data indicate that the use of cryopreserved vein grafts should be limited as conduits in PV reconstruction in adult LDLT. PMID:16724339

Sugawara, Yasuhiko; Makuuchi, Masatoshi; Tamura, Sumihito; Matsui, Yuichi; Kaneko, Junichi; Hasegawa, Kiyoshi; Imamura, Hiroshi; Kokudo, Norihiro; Motomura, Noboru; Takamoto, Shinichi

2006-08-01

248

Unconventional interventional therapy for cavernous transformation of the portal vein.  

Science.gov (United States)

Cavernous transformation of the portal vein (CTPV) is a mass-like network of collateral veins around the portal vein as the sequel to extrahepatic portal vein obstruction. The common clinical manifestations include esophageal varices, splenomegaly, and hypersplenism. The patient may present with recurrent hematemesis and tarry stool. We report a woman who presented with CTPV, which was managed with an unconventional interventional method to recanalize the superior mesenteric vein and main portal vein. PMID:24632320

Diao, Yong-Peng; Yang, Ning; Guo, Li-Long; Song, Xiao-Jun; Liu, Chang-Wei; Li, Yong-Jun

2014-10-01

249

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  

Directory of Open Access Journals (Sweden)

Full Text Available 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, T3 and T4 respectively during the production of the burgers. The burgers were vacuum-packed and frozen for sensory and laboratory analyses. The M. oleifera leaf powder had significant (P0.01 the crude protein content but no significant effect on sensory characteristics of the products.

Gabriel Teye

2013-03-01

250

Application of response surface methodology to optimize pressurized liquid extraction of antioxidant compounds from sage (Salvia officinalis L.), basil (Ocimum basilicum L.) and thyme (Thymus vulgaris L.).  

Science.gov (United States)

The present study optimized pressurized liquid extraction (PLE) conditions using Dionex ASE® 200, USA to maximize the antioxidant activity [Ferric ion Reducing Antioxidant Power (FRAP)] and total polyphenol content (TP) of the extracts from three spices of Lamiaceae family (sage, basil and thyme). Optimal conditions with regard to extraction temperature (66-129 °C) and solvent concentration (32-88% methanol) were identified using response surface methodology (RSM). For all three spices, results showed that 129 °C was the optimum temperature with regard to antioxidant activity. Optimal methanol concentrations with respect to the antioxidant activity of sage and basil extracts were 58% and 60% respectively. Thyme showed a different trend with regard to methanol concentration and was optimally extracted at 33%. Antioxidant activity yields of the optimal PLE were significantly (p extracts. Predicted models were highly significant (p TP) and FRAP values in all the spices with high regression coefficients (R(2)) ranging from 0.651 to 0.999. PMID:21776476

Hossain, M B; Brunton, N P; Martin-Diana, A B; Barry-Ryan, C

2010-12-01

251

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

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Full Text Available 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 was concluded that the antimutagenic effect against UV-induced mutagenesis involved decrease of protein synthesis and cell proliferation which led to increased efficiency of nucleotide excision repair. An antimutagenic effect of basil derivatives in S. cerevisiae was not detected.

Stanojevi? Jasna

2008-01-01

252

Role of Ovarian Transposition Based on the Dosimetric Effects of Craniospinal Irradiation on the Ovaries: A Case Report  

International Nuclear Information System (INIS)

In this study, we present a case of laparoscopic ovarian transposition to preserve ovarian function in an adult female patient treated with craniospinal irradiation for standard risk medulloblastoma. The prescribed dose to the craniospinal axis was 2340 cGy at 180 cGy per fraction and was delivered with 6-MV photons. Before ovarian transposition, magnetic resonance imaging (MRI) of the pelvis was obtained for localization of the ovaries and was registered with the planning computed tomography (CT) scan. Surgical clips allowed for CT localization of the ovaries after transposition. As a result of ovarian transposition, mean and maximum radiation doses decreased from 983 to 68 cGy and 1624 to 84 cGy for the left ovary and from 166 to 87 cGy and 723 to 103 cGy for the right ovary, respectively. Review of the literature indicates that such radiation doses are below the threshold that causes ovarian dysfunction and infertility. We conclude that ovarian localization with an MRI of the pelvis can be offered to females undergoing craniospinal irradiation. Transposition of the ovaries provides an option to preserve ovarian function in cases where the ovaries would otherwise be included within the radiation field

253

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

254

Effect of Application of Compost and Vermicompost Enriched with Chemical Fertilizer and Manure on Some Biological Indicators of Soil Quality of Basil (Ocimum basilicum) Rhizosphere  

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Biological indicators are considered soil quality elements, due to their dependence on soil organisms. In order to investigate The effect of compost and vermicompost enriched by chemical fertilizers and manure on soil organic carbon, microbial respiration, and enzymes activity in basil plant's rhizosphere, a field experiment was conducted as a split-plot design with randomized complete blocks and three replications in 2006. The main plot involved six levels of fertilizer including: 20 and 40 ...

Dehghan-menshadi, H.; Bahmanyar, M. A.; Salek Gilani, S.; Lakzian, A.

2012-01-01

255

Phytochemical screening and evaluation of cardioprotective activity of ethanolic extract of Ocimum basilicum L. (basil) against isoproterenol induced myocardial infarction in rats  

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Abstract Background and the purpose of the study The objectives of the present study were phytochemical screening and study of the effects of ethanolic extract of aerial parts of Ocimum basilicum (basil) on cardiac functions and histopathological changes in isoproterenol-induced myocardial infarction (MI). Methods The leaves of the plant were extracted with ethanol by maceration and subjected to colorimetry to determine flavonoids and phenolic compounds...

Fathiazad Fatemeh; Matlobi Amin; Khorrami Arash; Hamedeyazdan Sanaz; Soraya Hamid; Hammami Mojtaba; Maleki-Dizaji Nasrin; Garjani Alireza

2012-01-01

256

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.  

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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, and egg 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. PMID:22646790

Hammershøj, M; Steenfeldt, S

2012-01-01

257

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

258

Changes in yogurt fermentation characteristics, and antioxidant potential and in vitro inhibition of angiotensin-1 converting enzyme upon the inclusion of peppermint, dill and basil  

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The present study investigated the effects of peppermint (Mentha piperita), dill (Anethum graveolens) and basil (Ocimum basilicum) on yogurt formation, proteolysis and inhibition of angiotensin-1 converting enzyme (ACE). Herbal-yogurts had faster rates of pH reduction than plain-yogurt. All herbal-yogurts had higher (p < 0.05) antioxidant activities than plain-yogurt, both at the end of fermentation and throughout the storage period. The o-phthalaldehyde (OPA) pe...

Amirdivani, Shabboo

2011-01-01

259

Portal vein gas in emergency surgery  

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Full Text Available Abstract Background Portal vein gas is an ominous radiological sign, which indicates a serious gastrointestinal problem in the majority of patients. Many causes have been identified and the most important was bowel ischemia and mesenteric vascular accident. The presentation of patients is varied and the diagnosis of the underlying problem depends mainly on the radiological findings and clinical signs. The aim of this article is to show the clinical importance of portal vein gas and its management in emergency surgery. Methods A computerised search was made of the Medline for publications discussing portal vein gas through March 2008. Sixty articles were identified and selected for this review because of their relevance. These articles cover a period from 1975–2008. Results Two hundreds and seventy-five patients with gas in the portal venous system were reported. The commonest cause for portal vein gas was bowel ischemia and mesenteric vascular pathology (61.44%. This was followed by inflammation of the gastrointestinal tract (16.26%, obstruction and dilatation (9.03%, sepsis (6.6%, iatrogenic injury and trauma (3.01% and cancer (1.8%. Idiopathic portal vein gas was also reported (1.8%. Conclusion Portal vein gas is a diagnostic sign, which indicates a serious intra-abdominal pathology requiring emergency surgery in the majority of patients. Portal vein gas due to simple and benign cause can be treated conservatively. Correlation between clinical and diagnostic findings is important to set the management plan.

Mahmood Hind

2008-07-01

260

Demonstration of IS711 transposition in Brucella ovis and Brucella pinnipedialis  

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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

 
 
 
 
261

Transpositional reactivation of two LTR retrotransposons in rice-Zizania recombinant inbred lines (RILs).  

Science.gov (United States)

Hybridization is prevalent in plants, which plays important roles in genome evolution. Apart from direct transfer and recombinatory generation of genetic variations by hybridization, de novo genetic instabilities can be induced by the process per se. One mechanism by which such de novo genetic variability can be generated by interspecific hybridization is transpositional reactivation of quiescent parental transposable elements (TEs) in the nascent hybrids. We have reported previously that introgressive hybridization between rice (Oryza sativa L.) and Zizania latifolia Griseb had induced rampant mobilization of three TEs, a copia-like LTR retrotransposon Tos17, a MITE mPing and a class II TE belonging to the hAT superfamily, Dart/nDart. In this study, we further found that two additional LTR retrotransposons, a gypsy-like (named RIRE2) and a copia-like (named Copia076), were also transpositionally reactivated in three recombinant inbred lines (RILs) derived from introgressive hybridization between rice and Z. latifolia. Novel bands of these two retroelements appeared in the RILs relative to their rice parental line (cv. Matsumae) in Southern blot, suggestive of retrotransposition, which was substantiated by transposon display (TD) and locus-specific PCR amplification for insertion sites. Both elements were found to be transcribed but at variable levels in the leaf tissue of the parental line and the RILs, suggesting that transcriptional control was probably not a mechanism for their transpositional activity in the RILs. Expression analysis of four genes adjacent to de novo insertions by Copia076 revealed marked difference in the transcript abundance for each of the genes between the RILs and their rice parental line, but the alterations in expression appeared unrelated with the retroelement insertions. PMID:21166796

Wang, Hong-Yan; Tian, Qin; Ma, Yi-Qiao; Wu, Ying; Miao, Gao-Jian; Ma, Yan; Cao, Dong-Hui; Wang, Xiao-Li; Lin, Chunjing; Pang, Jingsong; Liu, Bao

2010-12-01

262

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 transposiçã [...] o 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.

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

2014-01-01

263

A reappraisal of saphenous vein grafting  

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Full Text Available 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 better patency. A loop SVG helps flap survival in a muscle flap transfer in plastic and reconstructive surgery. For dialysis or transfusion purposes, a straight or loop arteriovenous fistula created in the forearm or the thigh with an SVG has acceptable patency. The saphenous vein has even been used as a stent cover to minimize the potential complications of standard angioplasty technique. However, the use of saphenous vein grafting is now largely diminished in treating cerebrovascular disorders, superior vena cava syndrome, and visceral revascularization due to the introduction of angioplasty and stenting techniques. The SVG remains the preferable biomaterial in coronary artery bypass, coronary ostioplasty, free flap transfer, and surgical treatment of Peyronie disease. Implications associated with saphenous vein grafting in vascular access surgery for the purpose of dialysis and chemotherapy are considerable. Vascular cuffs and patches have been developed as an important and effective means of enhancing the patency rates of the grafts by linking the synthetic material to the receipt vessel. In addition, saphenous veins can be a cell source for tissue engineering. We review the versatile roles that saphenous vein grafting has played as well as its current status in therapy.

Yuan Shi-Min

2011-01-01

264

Congenitally corrected transposition of great vessels in fetus. A study case presentation.  

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Full Text Available The congenitally corrected transposition refers to a malformation in which the atrial andventricular chambers present discordant connections, being also discordant the ventricularchambers with the originated from each of them vessels. It is presented a case with aforementioned characteristics, diagnosed by the second quarter of pregnancy, which at momentof birth presented a rhythm disorder. We propose to report the current case, evidencing theimportance of adequate interpretation of four chambers, left ventricle short axis and threevessels echocardiographic views in the prenatal diagnosis of congenital cardiopathies.

Carlos García Guevara

2011-01-01

265

Criss cross heart in a congenitally corrected transposition of the great arteries.  

Science.gov (United States)

Criss cross heart is an extremely rare anomaly accounting for less than 0.1% of congenital heart disease. It is characterized by an abnormal rotation of the heart on its long axis. Almost always there are associated cardiac anomalies such as pulmonary stenosis, ventricular septal defect, ventriculoarterial connection discord or hypoplasia of the tricuspid valve or right ventricle and thereby presenting in the neonatal period. We present a case of a 22 year old woman with a congenitally corrected transposition of great arteries and a criss cross heart. PMID:18255175

Martínez Quintana, Efrén; Rodríguez González, Fayna; Agredo Muñoz, Julio

2008-11-12

266

Didactic transposition and teacher’s dilemmas arising on Physics for non-physicists teaching  

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Full Text Available This work describes a research centered on dilemmas that university teachers face when they teach Physics in careers where this discipline is not the main one. We explored the didactic actions designed by teachers in those contexts, looking for the factors that could cause and/or condition the observed acting patterns. We built a theoretical model from a cultural perspective: we propose that the academic culture shapes the teacher thinking, which is reflected on his classroom practice. Three reference axes are considered: the notion of academic culture, the study of teacher thinking and the didactic transposition theory. The methodological design was centered on case studies.

Beatriz Milicic

2008-01-01

267

One-stage total repair of severe hypospadias with scrotal transposition: experience in 18 cases.  

Science.gov (United States)

This is a report detailing further experience with our one-stage repair of severe hypospadias and scrotal transposition performed on 18 patients. Initial success was obtained in 12 cases, while two more were improved by secondary repair. The operative technique, as modified, assures a parameatal preputial flap, which is well vascularized and easily constructed into a neourethra. The advantages of this improved "glanulomeatoplasty" and scrotoplasty are discussed. The method is recommended as an excellent functional and cosmetic procedure for one-stage correction of severe hypospadias. PMID:3343654

Nonomura, K; Koyanagi, T; Imanaka, K; Togashi, M; Asano, Y; Tanda, K

1988-02-01

268

Congenitally corrected transposition of the great arteries with anomalous inferior vena cava drainage: multimodality imaging.  

Science.gov (United States)

Atrioventricular discordance with ventricular-arterial discordance is a rare cardiac anomaly known as congenitally corrected transposition of the great arteries (CCTGA). This malformation has a prevalence of 0.4-0.6% of all congenital heart disease cases. Complete heart block develops in up to 30% of patients with CCTGA. We present the case of a 62-year-old woman diagnosed with CCTGA who, on echocardiography, had anomalous venous drainage where the inferior vena cava (IVC) bypassed the right atrium and drained into the azygos system. Complementary images with magnetic resonance imaging demonstrated the unique anatomical relationship between the IVC, azygos venous system, and the superior vena cava.? PMID:21967326

Paterick, Timothy E; Schmidt, Matthew; Jan, M Fuad; Kramer, Christopher; Umland, Matt M; Bloomgarden, Daniel; Tajik, A Jamil

2012-01-01

269

The central PPT of the yeast retrotransposon Ty1 is not essential for transposition.  

Science.gov (United States)

The yeast retrotransposon Ty1 has structural and functional similarities to retroviruses. We report here that, as in retroviruses, the plus-strand DNA of Ty1 is synthesized as two segments. A central DNA flap is formed during reverse transcription consecutive to elongation (with strand displacement) of the upstream segment beyond the central polypurine tract (cPPT) until the replication machinery is stopped at the central termination sequence. Comparison of wild-type and cPPT-mutant Ty1 elements shows that the mutant element lacking the central DNA flap is only twofold defective in transposition. PMID:12888340

Heyman, T; Wilhelm, M; Wilhelm, F-X

2003-08-01

270

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

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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

271

Mixing time and cutoff for the adjacent transposition shuffle and the simple exclusion  

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In this paper, we investigate the mixing time of the adjacent transposition shuffle for a deck of cards. We prove that around time N^2\\log N/(2\\pi^2), the total-variation distance to equilibrium of the deck distribution drops abruptly from 1 to 0, and that the separation distance has a similar behavior but with a transition occurring at time (N^2\\log N)/\\pi^2. This solves a conjecture formulated by David Wilson. We present also similar results for the exclusion process on a ...

Lacoin, Hubert

2013-01-01

272

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  

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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

273

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.

274

Internal jugular vein thrombosis: an uncommon presentation.  

Science.gov (United States)

Internal jugular vein (IJV) thrombosis is a rare entity. It is usually secondary to various etiologies such as ovarian hyperstimulation, deep vein thrombosis of upper limbs, venous catheter, malignancy, trauma, infection, and neck surgery and hypercoagulable status. We report an unusual case of internal jugular vein thrombosis with cerebral sinus thrombosis, postpartum in a 22-year-old female patient who presented with a painful swelling on the left side of her neck. Diagnosis was established by color Doppler ultrasonography and magnetic resonance venography. Thorough evaluation of the patient revealed no etiological factor leading to thrombosis. Patient was treated with low-molecular-weight heparin. PMID:23518847

Mittal, Sachin; Garg, Pradeep; Verma, Surender; Bhoriwal, Sandeep; Aggarwal, Sourabh

2013-03-21

275

RI angiographic evaluation of varicose veins  

International Nuclear Information System (INIS)

A case of 54-year-old woman with varicose viens in the both legs was evaluated by in vivo sup(99m)Tc-labeled red blood cells angiography. Dynamic study only showed tortuousity of the lower abdominal aorta and iliac arteries. Blood pool image showed prominent tortuousity and dilatation of superficial veins and anastomosing branches in the both legs. Contrast angiography only showed tortuous abdominal aorta and iliac arteries. Contrast venography showed tortuous and dilated veins. Blood pool image of RI angiography is useful in evaluating for varicose veins of the legs. (author)

276

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

277

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

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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

278

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.

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

279

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

280

Basil Bernstein y la relación lenguaje-educación: el caso del Semestre de Afanzamiento (SEA) de la Institución Universitaria de Envigado / Basil Bernstein and the language-education relation: the case of the reinforcement semester (SEA, acronym in Spanish) at Institución Universitaria de Envigado / Basil Bernstein e a relação linguagem-educaçãoo caso do semestre de afançamento (seja) da Instituição Universitária de Envigado  

Scientific Electronic Library Online (English)

Full Text Available SciELO Colombia | Language: Spanish Abstract in portuguese Introdução. Neste artigo, descreve-se a relação entre linguagem, família e educação no caso dos estudantes do Semestre de Afançamento da Instituição Universitária de Envigado no semestre 2010-II. Objetivo. estabelecer a relação entre estrato social e cultura escrita. Materiais e métodos. Parte-se de [...] sde os conceitos de código restringido e código elaborado propostos por Basil Bernstein e se retoma a proposta da linguagem como uma semiótica social de M.A.K Halliday. Resultados. Para verificar se o estrato social influi no entendimento leitor e na habilidade para escrever se realizaram duas provas tipo teste a 34 estudantes que estavam cursando o SEA no semestre 2010-II. Depois, foram divididos em três grupos com respeito ao estrato social. Finalmente, se triangulou esta informação com os resultados ICFES na área de linguagem. Conclusões. Se estabeleceu uma relação entre estrato social e cultura escrita, deixando entrever a necessidade de fortalecer os ciclos de educação primária e secundária para reparar as dificuldades apresentadas nas socializações primárias em famílias de baixos estratos, possibilitando desta forma, que os estudantes desenvolvam códigos elaborados porque em termos gerais a uma universidade como a IUE, chegam estudantes com só o manejo do código restringido. Abstract in spanish Introducción. En este artículo, se describe la relación entre lenguaje, familia y educación en el caso de los estudiantes del Semestre de Afianzamiento de la Institución Universitaria de Envigado en el semestre 2010-II. Objetivo. Establecer la relación entre estrato social y cultura escrita. Materia [...] les y métodos. Se parte desde los conceptos de código restringido y código elaborado, propuestos por Basil Bernstein, y se retoma la propuesta del lenguaje como una semiótica social de M. A. K. Halliday. Resultados. Para verificar si el estrato social influye en la comprensión lectora y en la habilidad para escribir, se realizaron dos pruebas tipo test a 34 estudiantes que estaban cursando el SEA en el semestre 2010-II. Luego, fueron divididos en tres grupos con respecto al estrato social. Finalmente, se trianguló esta información con los resultados ICFES en el área de lenguaje. Conclusiones. Se estableció una relación entre estrato social y cultura escrita, dejando entrever la necesidad de fortalecer los ciclos de educación primaria y secundaria para subsanar las dificultades presentadas en las socializaciones primarias en familias de bajos estratos, posibilitando de esta forma, que los estudiantes desarrollen códigos elaborados porque, en términos generales, a una universidad como la IUE, llegan estudiantes con sólo el manejo del código restringido. Abstract in english Introduction. This article describes the relationship between language, family and education in the case of the reinforcement semester from Universitaria de Envigado during the second semester of 2010. Objective. To establish the relationship between social stratum and written culture. Materials and [...] methods. Departing from the restricted code and elaborated code concepts, proposed by Basil Bernstein, M.A.K Halliday's proposal of language as a social semiotic is re taken. Results. In order to verify if social stratum influences reading comprehension and writing skills, two 34 type tests were practiced to students that were coursing SEA in the second semester of 2010. Then, the students were divided into three groups, classified by social stratum. Finally, the information was triangulated with the ICFES tests results in the language area. Conclusions. A relationship was established between social stratum and written culture, suggesting a necessity to strengthen the primary and secondary educational cycles in order to solve the difficulties that take place among lower stratus families and thus allowing students to develop elaborated codes, because, in general terms, Institución Universitaria de Envigado is being attende

David Alberto, Londoño Vásquez; Luz Stella, Castañeda Naranjo.

2011-07-01

 
 
 
 
281

The windsock syndrome: subpulmonic obstruction by membranous ventricular septal aneurysm in congenitally corrected transposition of great arteries.  

Science.gov (United States)

Anomalies of the membranous portion of the interventricular septum include perimembranous ventricular septal defect and/or membranous septal aneurysm (MSA). In congenitally corrected transposition of the great arteries (L-TGA in sinus solitus), the combination of ventricular inversion and arterial transposition creates a unique anatomic substrate that fosters subpulmonic left ventricular outflow tract obstruction by an MSA. The combination of an L-TGA with subpulmonic obstruction by an MSA is referred to as the windsock syndrome. We report a case of windsock syndrome in a 25-year-old man which is to our knowledge the first three-dimensional echocardiographic description of this congenital entity. PMID:23808930

Razzouk, Louai; Applebaum, Robert M; Okamura, Charles; Saric, Muhamed

2013-09-01

282

The Quantity and Course Of Paraumbilical Veins in Adults, and Their Topographic Relation with the Umbilical Vein (Ligamentum Teres Hepatis  

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Full Text Available  Aim : The paraumbilical veins surrounding umbilical vein and running within falciform ligament is of the following three types: Burows veins, Sappeys superior and inferior group veins. Sappey’s veins are referred to as accessory portal veins. They form the connection between portal vein and systemic veins. Burows veins terminate in the middle third of umbilical veins and do not enter the intrahepatic portal system directly. Material and Methods In this study, the falciform ligament specimens from 20 adult cadavers were used to determine the number and course of paraumbilical veins and to expose its topographic relationship with umbilical vein. The falciform ligament separated into four quadrants and examined. Results: Mean numbers of paraumbilical veins were found 6.65 ± 2.1 in microscopical examination. Conclusion: In the relevant literature, there is a lack in studies about the quantity of paraumbilical veins and their topographic relation with the umbilical vein. Detailed information on quantitative parameters of paraumbilical veins may prove helpful in determining pathologies of paraumbilical veins and portalsystemic circulation.

Nurcan ?mre

2010-09-01

283

Management of Cosmetically Objectionable Periocular Veins  

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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.

Kersten, Robert C.

2007-01-01

284

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)

285

If I Had - Deep Vein Thrombosis  

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Full Text Available ... Insidermedicine In 60 In Depth In the Spotlight If I Had... Universities and Hospitals By Disease or ... in Osteoporosis (Interview with Dr. Kenneth Saag, MD) If I Had - Deep Vein Thrombosis - Dr. David Lee, ...

286

Deep vein thrombosis of the leg  

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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

287

Veins Improve Fracture Toughness of Insect Wings  

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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 ...

Dirks, Jan-henning; Taylor, David

2012-01-01

288

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.)

289

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

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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

290

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)

291

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)

292

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

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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

293

Letter transpositions within and across morphemic boundaries: is there a cross-language difference?  

Science.gov (United States)

Research on the impact of letter transpositions that arise across morpheme boundaries has yielded conflicting results. These results have led to the suggestion that a cross-linguistic difference may exist in the recognition of Spanish and English words. In two masked-priming experiments run on separate groups of Spanish and English speakers, we tested this hypothesis by comparing the impacts of primes with letter transpositions that arose within morphemes or across morpheme boundaries on the recognition of identical or near-identical Spanish-English cognate targets. The results showed transposed-letter benefits in both Spanish and English that were not modulated by the position of the transposed letter in the prime stimulus. Our findings therefore add to the growing body of literature suggesting that the transposed-letter benefit is not affected by the position of the transposed letters relative to the morpheme boundary, and they dispel previous suggestions that there might be a genuine difference in orthographic coding across the Spanish and English writing systems. PMID:23543423

Sánchez-Gutiérrez, Claudia; Rastle, Kathleen

2013-10-01

294

Successful term pregnancy after Mustard operation for transposition of the great arteries.  

Science.gov (United States)

Transposition of the great arteries is a complex cardiac malformation with poor prognosis without surgical correction. Since the introduction of surgical procedures such as the intra-auricular reorientation of the venous return (Mustard procedure), an increasing number of patients may reach adulthood and experience pregnancy. Because long-term complications after the Mustard operation include systemic heart failure, arrhythmias, venous return stenosis and pulmonary edema, hemodynamic changes during pregnancy and delivery may potentially engender life-threatening complications in these patients. We report the case of a 24-year-old primigravida who underwent a Mustard procedure at the age of 2 years for transposition of the great vessels, and who carried out a full-term pregnancy. The pregnancy was uneventful until the 34th week, when the woman developed signs of moderate right ventricular failure and frequent episodes of accelerated junctional rhythm. Digitalisation improved symptoms and elicited return to normal sinus rhythm. The patient delivered at term by elective cesarean section, under close hemodynamic monitoring. PMID:7781853

Rousseil, M P; Irion, O; Béguin, F; Jaques, O; Adamec, R; Lerch, R; Friedli, B; Rifat, K

1995-03-01

295

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

296

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

297

Evaluation of leg varicose veins by MR venography  

International Nuclear Information System (INIS)

Preoperative evaluation was conducted on 30 patients with leg varicose veins by MR venography (MRV), and compared with conventional venography, MR images were performed by the 3D-SMASH Method. Compared with venography, MRV could more clearly demonstrate leg varicose veins with perforating veins than venography. It could detected fine varicose veins more than 2 mm in diameter, and deep veins. Furthermore, 3D observation enables accurate detection of the location of perforating vein. In conclusion, MRV is useful for the diagnosis of leg varicose vein. (author)

298

Evaluation of leg varicose veins by MR venography  

Energy Technology Data Exchange (ETDEWEB)

Preoperative evaluation was conducted on 30 patients with leg varicose veins by MR venography (MRV), and compared with conventional venography, MR images were performed by the 3D-SMASH Method. Compared with venography, MRV could more clearly demonstrate leg varicose veins with perforating veins than venography. It could detected fine varicose veins more than 2 mm in diameter, and deep veins. Furthermore, 3D observation enables accurate detection of the location of perforating vein. In conclusion, MRV is useful for the diagnosis of leg varicose vein. (author)

Kojima, Yoshifumi; Shiraishi, Tomokuni; Taira, Mitsuru [Kansai Medical Univ., Neyagawa, Osaka (Japan). Kohri Hospital; Imamura, Atsushi; Yamada, Hitoshi; Okuno, Masafumi; Kamiyama, Yasuo

1998-11-01

299

Abnormal formation and communication of external jugular vein  

Directory of Open Access Journals (Sweden)

Full Text Available Knowledge of variations in the origin, course and termination of external jugular vein may be important for surgeons, radiologists, and plastic surgeons. In this report, we present a variation in the origin of the external jugular vein and its abnormal communication with the cephalic vein. The external jugular vein was formed by the union of facial and retromandibular veins. Its course and termination were normal but it communicated with the cephalic vein through a large communicating vein, which crossed superficial to clavicle. The retromandibular vein did not divide into two divisions and the posterior auricular vein was absent. The terminal part of cephalic vein was sandwiched between the clavicle and subclavius muscle.

Nayak SB

2008-08-01

300

Scattering Removal for Finger-Vein Image Restoration  

Directory of Open Access Journals (Sweden)

Full Text Available Finger-vein recognition has received increased attention recently. However, the finger-vein images are always captured in poor quality. This certainly makes finger-vein feature representation unreliable, and further impairs the accuracy of finger-vein recognition. In this paper, we first give an analysis of the intrinsic factors causing finger-vein image degradation, and then propose a simple but effective image restoration method based on scattering removal. To give a proper description of finger-vein image degradation, a biological optical model (BOM specific to finger-vein imaging is proposed according to the principle of light propagation in biological tissues. Based on BOM, the light scattering component is sensibly estimated and properly removed for finger-vein image restoration. Finally, experimental results demonstrate that the proposed method is powerful in enhancing the finger-vein image contrast and in improving the finger-vein image matching accuracy.

Jinfeng Yang

2012-03-01

 
 
 
 
301

Duplication of the Portal Vein: A Case Report  

Energy Technology Data Exchange (ETDEWEB)

The duplication of the portal vein is an uncommon congenital anomaly. To date, only four cases have been reported in the medical literature. This anomaly can cause portal hypertension in pediatric patients. In addition, duplication of the portal vein has various patterns of connection with a splenic vein or mesenteric veins, and it can lie anterior or posterior to the duodenum. We report the MDCT findings of an adult patient with duplication of the portal vein that was found incidentally

Kim, Sang Won; Shin, Hyeong Cheol; Jou, Sung Shick; Han, Jong Kyu; Kim, Il Young [Soonchunhyang University Cheonan Hospital, Cheonan (Korea, Republic of)

2009-12-15

302

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.)

303

Complete transposition of the aorta and pulmonary artery in a Belgian Blue crossbreed calf: A case report  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Complete transposition of the great arteries is a congenital cardiac malformation occasionally encountered in cattle and other species. The objective of the present report was to provide a detailed clinical, echocardiographic and post mortem description of a calf presenting with this condition. Case presentation A 6-week old male Belgian Blue cross-breed calf was examined for respiratory distress and exercise intolerance. The patient was bright, alert and responsive without any neurologic abnormalities but was exercise intolerant, had marked cyanosis, tachycardia, tachypnea, a pansystolic heart murmur as well as a bilaterally palpable thrill over the heart. Arterial blood gas analysis revealed marked hypoxemia (PaO2 = 23 mmHg, O2sat = 41.1%, mild hypercapnia and compensated respiratory acidosis. Echocardiographic examination revealed a complete transposition of the great arteries in combination with a ventricular septal defect through which blood shunted bidirectionally. Cardiac catheterization confirmed that arterialization of blood of the systemic circulation solely occurred in the right ventricle through blood shunting from the left into the right ventricle. Results of post mortem examination are presented. Conclusion Complete transposition of the great arteries is a cyanotic congenital anomaly repeatedly reported in calves that should be considered as differential diagnosis in patients presenting with hypoxemia more severe than commonly encountered with other congenital cyanotic heart conditions. We give a comprehensive summary of the clinical presentation, diagnostic work-up and post mortem examination of a Belgian Blue cross-breed calf with complete transposition of the great arteries

Weerts Erik AWS

2011-05-01

304

[Calcified deep vein thrombosis in a patient with recurrent deep vein thrombosis and sarcoidosis].  

Science.gov (United States)

In this article, we present a rare case of calcified deep vein thrombosis in a 42-year-old female patient with frequent relapses of pulmonary sarcoidosis since 1995, for which she was on maintenance therapy with corticosteroids and with consequential secondary diabetes. Recent femoral vein thrombosis was diagnosed with color Doppler in 2012. At the same time, calcified occlusive thrombus in vena cava inferior from the level of renal vein to the confluence of hepatic veins was diagnosed on abdominal multi-slice computed tomography (MSCT). Digital subtraction venography (DSV) revealed a well-developed collateral circulation through the paravertebral veins, azygos and hemiazygos vein. There were no risk factors for thrombosis other than sarcoidosis and diabetes. Deep vein thrombosis is rarely described with sarcoidosis, but according to literature reports, it usually appears as a recurrence and simultaneously at multiple locations. According to the current knowledge, we cannot say for sure whether it is a disease with an increased risk of deep vein thrombosis or there is a combination of multiple risk factors present simultaneously. PMID:24979886

Krmek, Dubravka Zupani?; Brajkovi?, Ivana; Beki?, Dinko; Krni?, Antun; Jurkovi?, Petar; Pavlovi?, Tomislav

2013-12-01

305

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.)

306

A new approach for sclera vein recognition  

Science.gov (United States)

The vein structure in the sclera is stable over time, unique to each person, and well suited for human identification. A few researchers have performed sclera vein pattern recognition and reported promising initial results. Sclera recognition poses several challenges: the vein structure moves and deforms with the movement of the eye; images of sclera patterns are often defocused and/or saturated; and, most importantly, the vein structure in the sclera is multi-layered and has complex non-linear deformation. In this paper, we proposed a new method for sclera recognition: First, we developed a color-based sclera region estimation scheme for sclera segmentation. Second, we designed a Gabor wavelet-based sclera pattern enhancement method, and an adaptive thresholding method to emphasize and binarize the sclera vein patterns. Third, we proposed a line descriptor-based feature extraction, registration, and matching method that is illumination-, scale-, orientation-, and deformation-invariant, and can mitigate the multi-layered deformation effects exhibited in the sclera and tolerate segmentation error. It is empirically verified using the UBIRIS database that the proposed method can perform accurate sclera recognition.

Thomas, N. L.; Du, Yingzi; Zhou, Zhi

2010-04-01

307

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.

2012-12-01

308

Effects of flaxseed, sardines, pearl millet, and holy basil leaves on production traits of layers and fatty acid composition of egg yolks.  

Science.gov (United States)

The effects of flaxseed, sardines, pearl millet, and holy basil (Oscimum sanctum) leaf meal on Single Comb White Leghorn (Forsgate strain) layer hen production traits, fatty acid composition of egg yolks, and egg quality characteristics were studied. Layer hens were allocated to 1 of 6 dietary treatments from 27 to 32 wk of age: control (treatment 1), control + 1 g of basil leaf meal (BLM) (treatment 2), control + 2 g of BLM (treatment 3), designer egg layer mash (DELM; treatment 4), DELM + 1 g of BLM (treatment 5), DELM + 2 g of BLM (treatment 6). No significant differences were found in egg production between dietary treatments, indicating that neither the designer diet nor the BLM had an adverse effect on egg production. The high energy level in the designer diet, because of the flaxseed oil and sardines, significantly reduced feed intake compared with the control diet. The egg weight was significantly higher in birds fed the designer diet compared with the egg weight in the control diet. The flaxseed oil and sardine oil, which are rich in n-3 polyunsaturated fatty acids, contributed to significantly increased n-3 polyunsaturated fatty acid levels in the egg yolks, with a proportionate reduction in the level of palmitic acid. Other fatty acids showed only minor variations. Flaxseed oil increased the level of ?-linolenic acid, whereas fish oil increased the eicosapentaenoic acid and docosahexaenoic acid levels. The BLM at low levels of inclusion (1 and 2 g/kg) also contributed significantly to elevating the yolk n-3 polyunsaturated fatty acid levels, especially C18:3. Holy basil leaf meal is a good feed supplement for increasing the yolk ?-linolenic acid level by reducing the yolk saturated fatty acid levels proportionately. PMID:21177454

Kirubakaran, A; Narahari, D; Ezhil Valavan, T; Sathish Kumar, A

2011-01-01

309

Unexpected roles for ancient proteins: flavone 8-hydroxylase in sweet basil trichomes is a Rieske-type, PAO-family oxygenase.  

Science.gov (United States)

Most elucidated hydroxylations in plant secondary metabolism are catalyzed by oxoglutarate- or cytochrome P450-dependent oxygenases. Numerous hydroxylations still evade clarification, suggesting that they might be performed by alternative enzyme types. Here, we report the identification of the flavone 8-hydroxylase (F8H) in sweet basil (Ocimum basilicum L.) trichomes as a Rieske-type oxygenase. Several features of the F8H activity in trichome protein extracts helped to differentiate it from a cytochrome P450-catalyzed reaction and identify candidate genes in the basil trichome EST database. The encoded ObF8H proteins share approximately 50% identity with Rieske-type protochlorophyllide a oxygenases (PTC52) from higher plants. Homology cloning and DNA blotting revealed the presence of several PTC52-like genes in the basil genome. The transcripts of the candidate gene designated ObF8H-1 are strongly enriched in trichomes compared to whole young leaves, indicating trichome-specific expression. The full-length ObF8H-1 protein possesses a predicted N-terminal transit peptide, which directs green fluorescent protein at least in part to chloroplasts. The F8H activity in crude trichome protein extracts correlates well with the abundance of ObF8H peptides. The purified recombinant ObF8H-1 displays high affinity for salvigenin and is inactive with other tested flavones except cirsimaritin, which is 8-hydroxylated with less than 0.2% relative activity. The efficiency of in vivo 8-hydroxylation by engineered yeast was improved by manipulation of protein subcellular targeting. blast searches showed that occurrence of several PTC52-like genes is rather common in sequenced plant genomes. The discovery of ObF8H suggests that Rieske-type oxygenases may represent overlooked candidate catalysts for oxygenations in specialized plant metabolism. PMID:25139498

Berim, Anna; Park, Jeong-Jin; Gang, David R

2014-11-01

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

MRI of the pulmonary artery after arterial switch operation for transposition of the great arteries  

International Nuclear Information System (INIS)

Twenty-six children who underwent an arterial switch operation for transposition of the great arteries were examined with MRI and Doppler ultrasound (US). The aim was to determine the capability of MRI for detecting a possible stenosis of the pulmonary arteries. In 10 children angiocardiography (ACG) was done after the MRI examination. Using ACG as the gold standard, MRI was sensitive in the detection of pulmonary artery stenosis. MRI was more precise in the localization of a stenosis than was Doppler US. Right ventricular hypertrophy was a sensitive indicator of pulmonary artery stenosis. These results suggest that MRI could serve as a screening examination for pulmonary artery stenosis after an arterial switch operation. (orig.)

312

MRI of the pulmonary artery after arterial switch operation for transposition of the great arteries  

Energy Technology Data Exchange (ETDEWEB)

Twenty-six children who underwent an arterial switch operation for transposition of the great arteries were examined with MRI and Doppler ultrasound (US). The aim was to determine the capability of MRI for detecting a possible stenosis of the pulmonary arteries. In 10 children angiocardiography (ACG) was done after the MRI examination. Using ACG as the gold standard, MRI was sensitive in the detection of pulmonary artery stenosis. MRI was more precise in the localization of a stenosis than was Doppler US. Right ventricular hypertrophy was a sensitive indicator of pulmonary artery stenosis. These results suggest that MRI could serve as a screening examination for pulmonary artery stenosis after an arterial switch operation. (orig.)

Beek, F.J.A. (Dept. of Radiology, Univ. Children' s Hospital, Utrecht (Netherlands) Dept. of Radiology, Univ. Hospital, Utrecht (Netherlands)); Beekman, R.P. (Dept. of Cardiology, Univ. Children' s Hospital, Utrecht (Netherlands)); Dillon, E.H. (Dept. of Radiology, Univ. Hospital, Utrecht (Netherlands)); Mali, W.P.T.M. (Dept. of Radiology, Univ. Hospital, Utrecht (Netherlands)); Meiners, L.C. (Dept. of Radiology, Univ. Hospital, Utrecht (Netherlands)); Kramer, P.P.G. (Dept. of Radiology, Univ. Children' s Hospital, Utrecht (Netherlands)); Meyboom, E.J. (Dept. of Cardiology, Univ. Children' s Hospital, Utrecht (Netherlands))

1993-09-01

313

Closure of a gastric tube-tracheal fistula by transposition of a pedicled sternocleidomastoid muscle flap.  

Science.gov (United States)

We treated a 65-year-old man presenting with a gastric tube-tracheal fistula, who had undergone subtotal esophagectomy. The radiological and endoscopical findings demonstrated a 4-mm gastric tube-tracheal fistula located just above the sternum. Conservative treatment using a flexible fiberscope and/or gastrofiberscope, including factor XIII with fibrinogen (Beriplast P, Tisseel, and Borheal), alpha-cyanoacrylate (Aron-alpha-A), n-butyl-2-cyanoacrylate (histoacryl), and human antihemolytic factor XIII (Fibrogammin P) in addition to total parenteral nutrition with no oral intake did not result in closure of the fistula. The fistula was therefore transected and closed through an upper median sternotomy and right partial intercostal incision followed by transposition of the sternocleidomastoid muscle flap between the gastric tube and trachea. The postoperative course was uneventful. PMID:9018001

Sakamoto, K; Ogawa, M; Yamamoto, S; Mugita, N; Saishoji, T; Azuma, K S; Hayashida, K

1997-01-01

314

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

315

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

316

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

317

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.

318

Globin gene structure in a reptile supports the transpositional model for amniote ?- and ?-globin gene evolution.  

Science.gov (United States)

The haemoglobin protein, required for oxygen transportation in the body, is encoded by ?- and ?-globin genes that are arranged in clusters. The transpositional model for the evolution of distinct ?-globin and ?-globin clusters in amniotes is much simpler than the previously proposed whole genome duplication model. According to this model, all jawed vertebrates share one ancient region containing ?- and ?-globin genes and several flanking genes in the order MPG-C16orf35-(?-?)-GBY-LUC7L that has been conserved for more than 410 million years, whereas amniotes evolved a distinct ?-globin cluster by insertion of a transposed ?-globin gene from this ancient region into a cluster of olfactory receptors flanked by CCKBR and RRM1. It could not be determined whether this organisation is conserved in all amniotes because of the paucity of information from non-avian reptiles. To fill in this gap, we examined globin gene organisation in a squamate reptile, the Australian bearded dragon lizard, Pogona vitticeps (Agamidae). We report here that the ?-globin cluster (HBK, HBA) is flanked by C16orf35 and GBY and is located on a pair of microchromosomes, whereas the ?-globin cluster is flanked by RRM1 on the 3' end and is located on the long arm of chromosome 3. However, the CCKBR gene that flanks the ?-globin cluster on the 5' end in other amniotes is located on the short arm of chromosome 5 in P. vitticeps, indicating that a chromosomal break between the ?-globin cluster and CCKBR occurred at least in the agamid lineage. Our data from a reptile species provide further evidence to support the transpositional model for the evolution of ?-globin gene cluster in amniotes. PMID:21116705

Patel, Vidushi S; Ezaz, Tariq; Deakin, Janine E; Graves, Jennifer A Marshall

2010-12-01

319

Finger Vein Recognition System Using Image Processing  

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Full Text Available Abstract- With increase in globalization and standard of living, there has been a steady increase in the use and development of consumer electronics. This calls for the need of convenient, simple, high security authentication systems to protect personal information stored in mobile devices. With increasing emphasis on security and high complexity of existing biometric systems in time or space or both, automated personal identification using finger-vein biometric is becoming a very active topic in both research and practical applications. In this paper, we have described and implemented an algorithm for finger-vein recognition system using image processing.

Rashmi R. Tallam

2014-05-01

320

Digital subtraction angiography of the pelvic veins  

International Nuclear Information System (INIS)

Digital subtraction angiography (DSA) is an established technique for detecting arterial diseases by transvenous or direct arterial application of contrast media. The present study intends to underline the importance of venous DSA in the diagnosis of diseases of the pelvic veins. In the 35 patients investigated, excellent contrast images of the pelvic region were obtained with peripheral injection of non-ionic contrast media with iodine concentrations no hihger than 200 mg/ml. Venous DSA of the pelvic region is recommended especially for patients with occlusive or varicose diseases of the veins of the legs, where conventional procedures usually fail. (orig/WU)

 
 
 
 
321

Deep vein thrombosis: a clinical review  

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Full Text Available 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, femoral vein, or popliteal vein or the deep veins of the pelvis. It is a potentially dangerous condition that can lead to preventable morbidity and mortality.Aim: To present an update on the causes and management of DVT.Methods: A review of publications obtained from Medline search, medical libraries, and Google.Results: DVT affects 0.1% of persons per year. It is predominantly a disease of the elderly and has a slight male preponderance. The approach to making a diagnosis currently involves an algorithm combining pretest probability, D-dimer testing, and compression ultrasonography. This will guide further investigations if necessary. Prophylaxis is both mechanical and pharmacological. The goals of treatment are to prevent extension of thrombi, pulmonary embolism, recurrence of thrombi, and the development of complications such as pulmonary hypertension and post-thrombotic syndrome.Conclusion: DVT is a potentially dangerous condition with a myriad of risk factors. Prophylaxis is very important and can be mechanical and pharmacological. The mainstay of treatment is anticoagulant therapy. Low-molecular-weight heparin, unfractionated heparin, and vitamin K antagonists have been the treatment of choice. Currently anticoagulants specifically targeting components of the common pathway have been recommended for prophylaxis. These include fondaparinux, a selective indirect factor Xa inhibitor and the new oral selective direct thrombin inhibitors (dabigatran and selective factor Xa inhibitors (rivaroxaban and apixaban. Others are currently undergoing trials. Thrombolytics and vena caval filters are very rarely indicated in special circumstances.Keywords: deep vein thrombosis, pulmonary embolism, venous thromboembolism, prophylaxis, treatment

Kesieme EB

2011-04-01

322

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

323

Oversized vein grafts develop advanced atherosclerosis in hypercholesterolemic minipigs  

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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

324

Central vein stenosis in a dialysis patient: a case report  

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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

325

Who Is at Risk for Deep Vein Thrombosis?  

Science.gov (United States)

... Who Is at Risk Deep Vein Thrombosis Explore Deep Vein Thrombosis What Is ... Other Names Causes Who Is at Risk Signs & Symptoms Diagnosis Treatments Prevention Living With Clinical Trials Links Spanish Version ...

326

Varicose and other vein problems - self-care  

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... you stand. As a result, you may have: Varicose veins Swelling in your legs Skin changes or even ... at home to: Slow down the development of varicose veins Decrease any discomfort Prevent skin ulcers

327

Endovenous laser therapy for varicose vein  

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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

328

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

329

Production of Carbon Nanotubes Using Vein Graphite  

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Full Text Available Carbon nanotubes (CNT are produced from a rare variety of natural vein graphite (VG distinctive to Sri Lanka using electric arc discharge. Electric arc-discharge produces both single walled and multi walled nanotubes. The products are characterized using high resolution electron microscopy and Raman spectroscopy for verification and validation

Lilantha Samaranayake, Nilwala Kottegoda, A.R. Kumarasinghe, Veranja Karunaratne

2014-07-01

330

Risk factors of thrombosis in abdominal veins  

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Full Text Available 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.METHODS: In this retrospective study, 36 patients with abdominal venous thrombosis were studied. The patients were divided into Budd-Chiari group (hepatic vein, IVC thrombosis and splanchnic venous thrombosis group (portal, splenic, superior mesenteric veins based on the veins involved. Hereditary and acquired thrombophilic risk factors were evaluated in all patients.RESULTS: Twenty patients had SVT, 14 had BCS, and 2 had mixed venous thrombosis. Ten patients (28% had hereditary and 10 patients (28% acquired thrombophilic risk factors. The acquired risk factors were significantly more common in the SVT group (SVT vs BCS: 45% vs 7%, ?2 = 5.7, P = 0.02 while hereditary risk factors did not show significant differences between the two groups (SVT vs BCS: 25% vs 36%, ?2 = 0.46, P = 0.7. Multiple risk factors were present in one (7% patient with BCS and in 3 patients (15% with SVT. No risk factors were identified in 57% of patients with BCS and in 45% of patients with SVT.CONCLUSION: Hereditary and acquired risk factors play an important role in the etiopathogenesis of abdominal venous thrombosis. Acquired risk factors are significantly more common in SVT patients while hereditary factors are similar in both groups.

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

2008-07-01

331

Cyclic changes in the affinity of protein–DNA interactions drive the progression and regulate the outcome of the Tn10 transposition reaction  

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The Tn10 transpososome is a DNA processing machine in which two transposon ends, a transposase dimer and the host protein integration host factor (IHF), are united in an asymmetrical complex. The transitions that occur during one transposition cycle are not limited to chemical cleavage events at the transposon ends, but also involve a reorganization of the protein and DNA components. Here, we demonstrate multiple pathways for Tn10 transposition. We show that one series of events is favored ov...

Liu, Danxu; Crellin, Paul; Chalmers, Ronald

2005-01-01

332

Functional dissection of the Tol2 transposable element identified the minimal cis-sequence and a highly repetitive sequence in the subterminal region essential for transposition.  

Science.gov (United States)

The Tol2 element is a naturally occurring active transposable element found in vertebrate genomes. The Tol2 transposon system has been shown to be active from fish to mammals and considered to be a useful gene transfer vector in vertebrates. However, cis-sequences essential for transposition have not been characterized. Here we report the characterization of the minimal cis-sequence of the Tol2 element. We constructed Tol2 vectors containing various lengths of DNA from both the left (5') and the right (3') ends and tested their transpositional activities both by the transient excision assay using zebrafish embryos and by analyzing chromosomal transposition in the zebrafish germ lineage. We demonstrated that Tol2 vectors with 200 bp from the left end and 150 bp from the right end were capable of transposition without reducing the transpositional efficiency and found that these sequences, including the terminal inverted repeats (TIRs) and the subterminal regions, are sufficient and required for transposition. The left and right ends were not interchangeable. The Tol2 vector carrying an insert of >11 kb could transpose, but a certain length of spacer, 18 bp, between the left and right ends was necessary for excision. Furthermore, we found that a 5-bp sequence, 5'-(A/G)AGTA-3', is repeated 33 times in the essential subterminal region. Mutations in the repeat sequence at 13 different sites in the subterminal region, as well as mutations in TIRs, severely reduced the excision activity, indicating that they play important roles in transposition. The identification of the minimal cis-sequence of the Tol2 element and the construction of mini-Tol2 vectors will facilitate development of useful transposon tools in vertebrates. Also, our study established a basis for further biochemical and molecular biological studies for understanding roles of the repetitive sequence in the subterminal region in transposition. PMID:16959904

Urasaki, Akihiro; Morvan, Ghislaine; Kawakami, Koichi

2006-10-01

333

Omental vein catheter thrombolysis for acute porto-mesenteric vein thrombosis.  

Science.gov (United States)

Mesenteric venous thrombosis (MVT) is an uncommon clinical condition with potential high morbidity. We report here a patient who presented with acute-onset MVT and bowel infarction, which was successfully ameliorated with intramesenteric vein thrombolytic therapy. PMID:23566871

Fonseca, Annabelle L; Cleary, Muriel A; Cholewczynski, Walter; Sumpio, Bauer E; Atweh, Nabil A

2013-05-01

334

EndoVascular Laser Therapy (EVLT) of Varicose Veins  

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Introduction & Background: Tens of millions of people – up to 40% of women and 25% of men – suffer from lower limb varicose veins. Several risk factors are also identified including genetics, gender, age, obesity, hor-mones, pregnancy, and occupation. Sclerotheraphy is commonly used to treat small varicose veins. Medium-sized and large varicose veins can be removed by a surgical procedure called Stab avulsion or phlebectomy. EVLT is a new alternative surgical method for varicose veins...

Akhlaghpour, S.; Zafar Ghandi, M. R.; Ebrahimi, M.; Alinaghizadeh

2005-01-01

335

Evaluation of left renal vein entrapment using multidetector computed tomography  

Energy Technology Data Exchange (ETDEWEB)

Background: Nutcracker syndrome, also called left renal vein entrapment syndrome, is a cause of non-glomerular hematuria with difficulties in diagnosis. Multidetector computed tomography (MDCT) is a powerful tool to prevent unnecessary diagnostic procedures. Purpose: To retrospectively determine the prevalence of nutcracker phenomenon and nutcracker syndrome seen in MDCT in consecutive patients. Material and Methods: The institutional review board approved the study and waived the requirement for informed consent. Abdominal contrast-enhanced MDCT scans were reviewed from 1000 consecutive patients. MDCT scan assessment included renal vein diameter measurements and evaluation for the presence of anterior or posterior left renal vein entrapment. Electronic medical records and urine analysis reports of patients with left renal vein entrapment were reviewed. Student's t test was used to assess differences in renal vein diameter in patients with left renal vein entrapment. Results: Left renal vein entrapment was observed in 10.9% (109), retroaortic left renal vein in 6.5% (65), entrapment of left renal vein between superior mesenteric artery and aorta in 4.1% (41), and circumaortic left renal vein in 0.3% (3) of patients. Mean diameters of right (8.8 {+-} 1.9 mm) and unentrapped left (8.9 {+-} 1.8 mm) renal veins were not significantly different (P = 0.1). The mean diameter of anterior entrapped left renal veins (10.3 {+-} 2 mm) was significantly greater (P = 0.04) than contralateral renal veins (8.6 {+-} 2.1 mm) in their widest portion. In 8.8% of patients with the left renal vein entrapment, urine analysis showed isomorphic hematuria or proteinuria with no other known cause. Varicocele and pelvic congestion were seen in 5.5% of patients with the left renal vein entrapment. Conclusion: Left renal vein entrapment is not a rare entity and renal nutcracker phenomenon might be underdiagnosed.

Poyraz, Ahmet K.; Onur, Mehmet R. [Dept. of Radiology, Firat Univ. School of Medicine, Elazig (Turkey)], e-mail: akursadpoyraz@yahoo.com.tr; Firdolas, Fatih [Dept. of Urology, Firat Univ. School of Medicine, Elazig (Turkey); Kocakoc, Ercan [Dept. of Radiology, Bezmialem Vakif Univ., School of Medicine, Istanbul (Turkey)

2013-03-15

336

Internal Jugular Vein Entrapment in a Multiple Sclerosis Patient  

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We describe a multiple sclerosis patient presenting with compression of the internal jugular vein caused by aberrant omohyoid muscle. Previously this patient underwent balloon angioplasty of the same internal jugular vein. Ten months after this endovascular procedure, Doppler sonography revealed totally collapsed middle part of the treated vein with no outflow detected. Still, the vein widened and the flow was restored when the patient's mouth opened. Thus, the abnormality was likely to be ca...

Marian Simka; Eugeniusz Majewski; Marek Fortuna

2012-01-01

337

Perioperative complications of in-situ vein bypass.  

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Experience with 146 in-situ vein bypass procedures for obliterative arterial disease are reviewed to determine the specific complication of the technique. Vein wall injury with the Hall valvulotome occurred in 6 patients (4%) and vein patching of a stenosed femoral vein was required in 2 patients. Residual arteriovenous fistulae occurred in 24 patients (16.5%) of whom 9 had an associated graft thrombosis distal to the fistula of which 6 were corrected by thrombectomy and fistula ligation. Per...

Gannon, M. X.; Goldman, M. D.; Simms, M. H.; Ruddock, S.; Ashton, F.; Slaney, G.

1986-01-01

338

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

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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...

Wilson, Y. G.

1998-01-01

339

Evaluation of left renal vein entrapment using multidetector computed tomography  

International Nuclear Information System (INIS)

Background: Nutcracker syndrome, also called left renal vein entrapment syndrome, is a cause of non-glomerular hematuria with difficulties in diagnosis. Multidetector computed tomography (MDCT) is a powerful tool to prevent unnecessary diagnostic procedures. Purpose: To retrospectively determine the prevalence of nutcracker phenomenon and nutcracker syndrome seen in MDCT in consecutive patients. Material and Methods: The institutional review board approved the study and waived the requirement for informed consent. Abdominal contrast-enhanced MDCT scans were reviewed from 1000 consecutive patients. MDCT scan assessment included renal vein diameter measurements and evaluation for the presence of anterior or posterior left renal vein entrapment. Electronic medical records and urine analysis reports of patients with left renal vein entrapment were reviewed. Student's t test was used to assess differences in renal vein diameter in patients with left renal vein entrapment. Results: Left renal vein entrapment was observed in 10.9% (109), retroaortic left renal vein in 6.5% (65), entrapment of left renal vein between superior mesenteric artery and aorta in 4.1% (41), and circumaortic left renal vein in 0.3% (3) of patients. Mean diameters of right (8.8 ± 1.9 mm) and unentrapped left (8.9 ± 1.8 mm) renal veins were not significantly different (P = 0.1). The mean diameter of anterior entrapped left renal veins (10.3 ± 2 mm) was significantly greater (P = 0.04) than contralateral renal veins (8.6 ± 2.1 mm) in their widest portion. In 8.8% of patients with the left renal vein entrapment, urine analysis showed isomorphic hematuria or proteinuria with no other known cause. Varicocele and pelvic congestion were seen in 5.5% of patients with the left renal vein entrapment. Conclusion: Left renal vein entrapment is not a rare entity and renal nutcracker phenomenon might be underdiagnosed

340

Comparison between mechanical properties of human saphenous vein and umbilical vein  

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Full Text Available Abstract Background As a main cause of mortality in developed countries, Coronary Artery Disease (CAD is known as silent killer with a considerable cost to be dedicated for its treatment. Coronary Artery Bypass Graft (CABG is a common remedy for CAD for which different blood vessels are used as a detour. There is a lack of knowledge about mechanical properties of human blood vessels used for CABG, and while these properties have a great impact on long-term patency of a CABG. Thus, studying these properties, especially those of human umbilical veins which have not been considered yet, looks utterly necessary. Methods Umbilical vein, as well as human Saphenous vein, are respectively obtained after cesarean and CABG. First, histological tests were performed to investigate different fiber contents of the samples. Having prepared samples carefully, force-displacement results of samples were rendered to real stress–strain measurements and then a fourth-order polynomial was used to prove the non-linear behavior of these two vessels. Results Results were analyzed in two directions, i.e. circumferentially and longitudinally, which then were compared with each other. The comparison between stiffness and elasticity of these veins showed that Saphenous vein’s stiffness is much higher than that of umbilical vein and also, it is less stretchable. Furthermore, for both vessels, longitudinal stiffness was higher than that of circumferential and in stark contrast, stretch ratio in circumferential direction came much higher than longitudinal orientation. Conclusion Blood pressure is very high in the region of aorta, so there should be a stiff blood vessel in this area and previous investigations showed that stiffer vessels would have a better influence on the flow of bypass. To this end, the current study has made an attempt to compare these two blood vessels’ stiffness, finding that Saphenous vein is stiffer than umbilical vein which is somehow as stiff as rat aortic vessels. As blood vessel’s stiffness is directly related to elastin and mainly collagen content, results showed the lower amount of these two contents in umbilical vein regarding Saphenous vein.

Hamedani Borhan

2012-08-01

 
 
 
 
341

MR venography of the inferior mesentery vein  

International Nuclear Information System (INIS)

Objective: To evaluate on three-dimensional (3D) dynamic contrast-enhanced (DCE) MR venography (MRV), the visibility of the inferior mesenteric vein (IMV), its insertion pattern into the portal system, and the difference of IMV diameters between healthy subjects and patients with cirrhosis. Materials and methods: Two hundred and seventeen consecutive patients who had abdominal 3D DCE MRI was included in this study. The original image data of 3D DCE MRI was used to generate multiple planar volume reconstruction (MPVR) images, which were evaluated for visualization of the IMV and its pattern of insertion into the portal system. The diameter of IMV was measured and compared in 24 patients with cirrhosis (Cirrhosis Group) and in 30 patients without hepatic lesions or liver disease (Healthy Group). Results: In the 217 patients, the frequencies of visualization of IMV, grade 1 order branches and grade 2 order branches were, respectively, 88%, 24% and 9%. The IMV inserted into the splenic vein (SV), the portal confluence and the superior mesenteric vein (SMV) in 45%, 18% and 37%, respectively. Among patients with cirrhosis, 12.5% had IMV diameter larger than 5.1 mm, although there was no significant difference between cirrhosis and healthy groups (P > 0.05). However, the diameters of the main portal vein (MPV), SV and SMV were significantly larger in the Cirrhosis Group (P < 0.05). Conclusion: The IMV and its branches can be depicted well by 3D DCE MRV. The most common inser well by 3D DCE MRV. The most common insertion of the IMV is into the splenic vein. A minority of patients with cirrhosis had dilatation of the IMV

342

MR venography of the inferior mesentery vein  

Energy Technology Data Exchange (ETDEWEB)

Objective: To evaluate on three-dimensional (3D) dynamic contrast-enhanced (DCE) MR venography (MRV), the visibility of the inferior mesenteric vein (IMV), its insertion pattern into the portal system, and the difference of IMV diameters between healthy subjects and patients with cirrhosis. Materials and methods: Two hundred and seventeen consecutive patients who had abdominal 3D DCE MRI was included in this study. The original image data of 3D DCE MRI was used to generate multiple planar volume reconstruction (MPVR) images, which were evaluated for visualization of the IMV and its pattern of insertion into the portal system. The diameter of IMV was measured and compared in 24 patients with cirrhosis (Cirrhosis Group) and in 30 patients without hepatic lesions or liver disease (Healthy Group). Results: In the 217 patients, the frequencies of visualization of IMV, grade 1 order branches and grade 2 order branches were, respectively, 88%, 24% and 9%. The IMV inserted into the splenic vein (SV), the portal confluence and the superior mesenteric vein (SMV) in 45%, 18% and 37%, respectively. Among patients with cirrhosis, 12.5% had IMV diameter larger than 5.1 mm, although there was no significant difference between cirrhosis and healthy groups (P > 0.05). However, the diameters of the main portal vein (MPV), SV and SMV were significantly larger in the Cirrhosis Group (P < 0.05). Conclusion: The IMV and its branches can be depicted well by 3D DCE MRV. The most common insertion of the IMV is into the splenic vein. A minority of patients with cirrhosis had dilatation of the IMV.

Zhang Xiaoming [Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Wenhua Road 63, Nanchong, Sichuan 637000 (China)], E-mail: zhangxm@nsmc.edu.cn; Zhong Tangli [Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Wenhua Road 63, Nanchong, Sichuan 637000 (China)], E-mail: zhongtls@163.com; Zhai Zhaohua [Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Wenhua Road 63, Nanchong, Sichuan 637000 (China)], E-mail: zhaizhaohuada@163.com; Zeng Nanlin [Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Wenhua Road 63, Nanchong, Sichuan 637000 (China)], E-mail: znl99@163.com

2007-10-15

343

Outpatient consent practice for varicose vein surgery  

Directory of Open Access Journals (Sweden)

Full Text Available Azzam Al-Amin, Muhammad Faiz Taib, Yousif Aawsaj, Asad RahiEast Lancashire Healthcare Trust, Department of Vascular Surgery, Royal Blackburn Hospital, Blackburn, United KingdomBackground: The aims of this study were to assess the accuracy and completeness of current consent practice in an outpatient clinic for open and minimally invasive varicose vein surgery, and to ascertain the type of complications suffered by patients and their correlation with consent practice.Methods: This was a retrospective analysis of outpatient consent practice from January to December 2010. All patients undergoing varicose vein surgery by open or endovenous laser therapy under a single consultant were identified. Case notes were examined by looking at clinic letters and consent forms, which were assessed against current standards.Results: Over 12 months, 103 consecutive patients were analyzed, and comprised 69 undergoing open surgery and 34 undergoing endovenous laser therapy. In total, 91% of patients were consented by a consultant, 6% by a senior house officer, and 3% by a registrar. For open surgery, all patients were consented for bruising, infection, numbness, nerve damage, and deep vein thrombosis. Only 43% were consented for pain; 2.76% were suffering pain and 6% were consented for thrombophlebitis without suffering. All patients who underwent endovenous laser therapy were consented for pain, numbness, skin discoloration, thrombophlebitis, nerve damage, and deep vein thrombosis. Only 8.8% were consented for infection and 2.9% suffered. No patients were consented for skin burns.Conclusion: Different strategies should be considered to improve the consent process and avoid the withholding of apparently trivial but crucial information during consenting.Keywords: consent, litigation, outpatient, varicose veins

Al-Amin A

2012-12-01

344

Veia gástrica posterior: hipertensão porta Posterior gastric vein: portal hipertension  

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Full Text Available A veia gástrica posterior não é muito citada nos livros de anatomia e nos trabalhos sobre hipertensão porta. Estudou-se sua anatomia, freqüência e desembocadura. Ela foi encontrada em 54% dos casos e, em 100%, desembocava na veia esplênica. Discute-se a vantagem ou não de sua ligadura ou preservação no tratamento cirúrgico da hipertensão porta.The posterior gastric vein has not been mentioned very often neither in anatomy textbooks nor in portal hypertension papers. The authors studied the anatomy, frequency and confluence of this vein because is a huge variety in the presentation of esophageal varices. Twenty-six adult preserved corpses (twenty females and six males had a wide abdominal incision allowing the dissection of the portal system, identifying the frequency and confluence of its tributaries, notably the posterior gastric vein. The portal vein, in all cases, was formed by the confluence of the superior mesenteric vein with the splenic vein and had a mean length of 6.4 cm. The splenic vein had a mean length of 6.5 cm. The left gastric vein was tributary of the portal vein in 50% of the cases and in 30% of the cases in the splenic vein. The right gastric vein had it's confluence to portal vein in 30 % of the cases and to the splenic vein in 4 %. The inferior mesenteric vein was tributary of the splenic vein in 54% of the cases and in the superior mesenteric vein in 46%. The left gastro-omental vein had its confluence to the splenic vein in 50% of the cases and to the inferior polar vein in 34 %. The middle colic vein had its confluence to superior mesenteric vein in 42% of the cases, to inferior mesenteric vein in 12% and to splenic vein in 8%. The posterior gastric vein was found in 54% of the corpses, and in all cases it was a tributary of the splenic vein, in retropancreatic position, coming from the esophageal-gastric junction. These findings agree with previous papers describing a prevalence of 60% of posterior gastric vein in patients submitted to surgery in portal hypertension, and in all cases, this vein was tributary of the splenic vein. The identification of this vein may influence the treatment, because if left untied during cases of portal-azigos disconnection, they may predispose to postoperative bleeding, but in cases of splenorenal anastomosis may preserve its patency in cases of anastomosis occlusion, or can lead again to postoperative bleeding feeding the esophageal varices. To ligate or not this vein will depends on the surgeon 's experience and common sense. Regarding to previous papers and to this data presented here, the authors believe that the prevalence of this vein is between 50 and 60% in the population.

Alcino Lázaro da Silva

1999-10-01

345

Aneurysm of external jugular vein mimicking hemangioma of neck.  

Science.gov (United States)

Venous aneurysms are one of the rare causes of neck swellings. Among neck veins, external jugular vein aneurysms are uncommon. We present a case of a woman who presented with a nontender compressible swelling in the left lower neck region, which initially thought to be hemangioma, was later found to be external jugular vein aneurysm on Doppler ultrasound and CT angiography. PMID:24465108

Aiyappan, Senthil Kumar; Ranga, Upasana; Veeraiyan, Saveetha

2013-12-01

346

Vascular anastomosis with Mobin-Uddin vein/graft holder.  

Science.gov (United States)

A vein/graft holder, designed for use during aortocoronary and peripheral vascular bypass surgery, is described. It holds the opening in a vein or synthetic graft securely during end-to-side and side-to-side anastomosis. The vein/graft holder is atraumatic, simplifies the suturing technique, and facilitates precise anastomosis. PMID:3535701

Mobin-Uddin, K; Pleasant, R

1986-11-01

347

The piggyBac element is capable of precise excision and transposition in cells and embryos of the mosquito, Anopheles gambiae.  

Science.gov (United States)

The piggyBac transposable element was tested for transposition activity in plasmid-based excision and inter-plasmid transposition assays to determine if this element would function in Anopheles gambiae cells and embryos. In the Mos55 cell line, precise excision of the piggyBac element was observed only in the presence of a helper plasmid. Excision occurred at a rate of 1 event per 1000 donor plasmids screened. Precise excision of the piggyBac element was also observed in injected An. gambiae embryos, but at a lower rate of 1 excision per 5000 donor plasmids. Transposition of the marked piggyBac element into a target plasmid occurred in An. gambiae cells at a rate of 1 transposition event per 24,000 donor plasmids. The piggyBac element transposed in a precise manner, with the TTAA target site being duplicated upon insertion, in 56% of transpositions observed, and only in the presence of the piggyBac helper. The remaining transpositions resulted in a deletion of target sequence, a novel observation for the phenomenon of piggyBac element insertion. 'Hot spots' for insertion into the target plasmid were observed, with 25 of 34 events involving one particular site. These results are the first demonstration of the precise mobility of piggyBac in this malaria vector and suggest that the lepidopteran piggyBac transposon is a candidate element for germline transformation of anopheline mosquitoes. PMID:10899457

Grossman, G L; Rafferty, C S; Fraser, M J; Benedict, M Q

2000-10-01

348

Criss-cross heart with congenitally corrected transposition: report of a case with d-transposed aorta and ventricular preexcitation.  

Science.gov (United States)

A case is described of corrected transposition in a situs solitus individual, in which, despite the presence of atrioventricular discordance (1-bulboventricular looping), the aorta was right-sided. A ventricular septal defect and pulmonary stenosis were also present, and the case had been erroneously diagnosed during life as complete transposition. The true diagnosis was not appreciated at surgery, and correction of the anomaly was attempted using a modification of Fontan's operation. The criss-cross atrioventricular connections were only fully appreciated at autopsy. The patient also exhibited ventricular preexcitation of Wolff-Parkinson-White variety type A. Histopathological examination revealed the presence of two atrioventricular nodes in the right atrium, each contacting the ventricular conduction tissue which was distributed to the morphologically appropriate ventricles. In addition, a left-sided accessory atrioventricular connection perforated the anulus of the left-sided, morphologically tricuspid, valve. PMID:908356

Symons, J C; Shinebourne, E A; Joseph, M C; Lincoln, C; Ho, Y; Anderson, R H

1977-08-01

349

Internal vein texture and vein evolution of the epithermal Shila-Paula district, southern Peru  

Science.gov (United States)

The epithermal Shila-Paula Au-Ag district is characterized by numerous veins hosted in Tertiary volcanic rocks of the Western Cordillera (southern Peru). Field studies of the ore bodies reveal a systematic association of a main E-W vein with secondary N55-60°W veins—two directions that are also reflected by the orientation of fluid-inclusion planes in quartz crystals of the host rock. In areas where this pattern is not recognized, such as the Apacheta sector, vein emplacement seems to have been guided by regional N40°E and N40°W fractures. Two main vein-filling stages are identified. stage 1 is a quartz-adularia-pyrite-galena-sphalerite-chalcopyrite-electrum-Mn silicate-carbonate assemblage that fills the main E-W veins. stage 2, which contains most of the precious-metal mineralization, is divided into pre-bonanza and bonanza substages. The pre-bonanza substage consists of a quartz-adularia-carbonate assemblage that is observed within the secondary N45-60°W veins, in veinlets that cut the stage 1 assemblage, and in final open-space fillings. The two latter structures are finally filled by the bonanza substage characterized by a Fe-poor sphalerite-chalcopyrite-pyrite-galena-tennantite-tetrahedrite-polybasite-pearceite-electrum assemblage. The ore in the main veins is systematically brecciated, whereas the ore in the secondary veins and geodes is characteristic of open-space crystallization. Microthermometric measurements on sphalerite from both stages and on quartz and calcite from stage 2 indicate a salinity range of 0 to 15.5 wt% NaCl equivalent and homogenization temperatures bracketed between 200 and 330°C. Secondary CO2-, N2- and H2S-bearing fluid inclusions are also identified. The age of vein emplacement, based on 40Ar/39Ar ages obtained on adularia of different veins, is estimated at around 11 Ma, with some overlap between adularia of stage 1 (11.4±0.4 Ma) and of stage 2 (10.8±0.3 Ma). A three-phase tectonic model has been constructed to explain the vein formation. Phase 1 corresponds to the assumed development of E-W sinistral shear zones and associated N60°W cleavages under the effects of a NE-SW shortening direction that is recognized at Andean scale. These structures contain the stage 1 ore assemblage that was brecciated during ongoing deformation. Phase 2 is a reactivation of earlier structures under a NW-SE shortening direction that allowed the reopening of the preexisting schistosity and the formation of scarce N50°E-striking S2-cleavage planes filled by the stage 2 pre-bonanza minerals. Phase 3 coincides with the bonanza ore emplacement in the secondary N45-60°W veins and also in open-space in the core of the main E-W veins. Our combined tectonic, textural, mineralogical, fluid-inclusion, and geochronological study presents a complete model of vein formation in which the reactivation of previously formed tectonic structures plays a significant role in ore formation.

Chauvet, Alain; Bailly, Laurent; André, Anne-Sylvie; Monié, Patrick; Cassard, Daniel; Tajada, Fernando Llosa; Vargas, Juan Rosas; Tuduri, Johann

2006-07-01

350

Change of Gene Structure and Function by Non-Homologous End-Joining, Homologous Recombination, and Transposition of DNA  

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An important objective in genome research is to relate genome structure to gene function. Sequence comparisons among orthologous and paralogous genes and their allelic variants can reveal sequences of functional significance. Here, we describe a 379-kb region on chromosome 1 of maize that enables us to reconstruct chromosome breakage, transposition, non-homologous end-joining, and homologous recombination events. Such a high-density composition of various mechanisms in a small chromosomal int...

Goettel, Wolfgang; Messing, Joachim

2009-01-01

351

The phiX174-type primosome promotes replisome assembly at the site of recombination in bacteriophage Mu transposition.  

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Initiation of Escherichia coli DNA synthesis primed by homologous recombination is believed to require the phiX174-type primosome, a mobile priming apparatus assembled without the initiator protein DnaA. We show that this primosome plays an essential role in bacteriophage Mu DNA replication by transposition. Upon promoting transfer of Mu ends to target DNA, the Mu transpososome undergoes transition to a pre-replisome that permits initiation of DNA synthesis only in the presence of primosome a...

Jones, J. M.; Nakai, H.

1997-01-01

352

Roteiros de aprendizagem a partir da transposição didática reflexiva / Learning Roadmaps from the reflective didactic transposition  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Este artigo busca socializar o produto da dissertação de mestrado profissional em Ensino de Matemática. Apresentamos roteiros de aprendizagem como uma possibilidade educacional para que professores de matemática do Ensino Médio possam aplicá-los de modo a desenvolver a matemática a partir de dados r [...] eais. Os roteiros foram adaptados de trabalhos oriundos do Projeto de Iniciação Científica do IFC - Campus Rio do Sul. A pesquisa foi embasada na teoria da Transposição Didática e na Educação Matemática Crítica. Essa abordagem foi denominada de Transposição Didática Reflexiva, com o intuito de unir as duas teorias num processo em que o saber a ser ensinado seja adaptado de forma a provocar reflexões, instituindo um cenário para investigação que propicie a participação do aluno no processo, provoque discussões e tomada de decisão, de modo a instigar o sujeito a ser transformador de sua própria realidade. De modo particular, o artigo apresenta, em linhas gerais, um dos roteiros detalhados na dissertação, aplicado em uma turma do IFC - Campus Rio do Sul. Abstract in english This article presents the results of Masters research in Mathematics Teaching that focused on learning roadmaps as an educational opportunity for high school mathematics teachers. The roadmaps, adapted from work carried out as part of the Scientific Initiation Project IFC - Rio do Sul Campus, can be [...] used by teachers to develop mathematics from real data. The research was based on the theory of Didactic Transposition and Critical Mathematics Education. The approach was denominated Reflective Didactic Transposition, aiming to unite the two theories in a process in which the knowledge to be taught is adapted to provoke reflections, establishing a setting for research that fosters the student's participation in the process and provokes discussions and decision making in order to encourage subjects to become engaged in transforming their own reality. In particular, the article provides an overview of the roadmaps detailed in the Masters thesis, applied in a class of IFC - Rio do Sul Campus

Paula Andrea Grawieski, Civiero; Marilaine de Fraga, Sant' Ana.

2013-08-01

353

Roteiros de aprendizagem a partir da transposição didática reflexiva / Learning Roadmaps from the reflective didactic transposition  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Este artigo busca socializar o produto da dissertação de mestrado profissional em Ensino de Matemática. Apresentamos roteiros de aprendizagem como uma possibilidade educacional para que professores de matemática do Ensino Médio possam aplicá-los de modo a desenvolver a matemática a partir de dados r [...] eais. Os roteiros foram adaptados de trabalhos oriundos do Projeto de Iniciação Científica do IFC - Campus Rio do Sul. A pesquisa foi embasada na teoria da Transposição Didática e na Educação Matemática Crítica. Essa abordagem foi denominada de Transposição Didática Reflexiva, com o intuito de unir as duas teorias num processo em que o saber a ser ensinado seja adaptado de forma a provocar reflexões, instituindo um cenário para investigação que propicie a participação do aluno no processo, provoque discussões e tomada de decisão, de modo a instigar o sujeito a ser transformador de sua própria realidade. De modo particular, o artigo apresenta, em linhas gerais, um dos roteiros detalhados na dissertação, aplicado em uma turma do IFC - Campus Rio do Sul. Abstract in english This article presents the results of Masters research in Mathematics Teaching that focused on learning roadmaps as an educational opportunity for high school mathematics teachers. The roadmaps, adapted from work carried out as part of the Scientific Initiation Project IFC - Rio do Sul Campus, can be [...] used by teachers to develop mathematics from real data. The research was based on the theory of Didactic Transposition and Critical Mathematics Education. The approach was denominated Reflective Didactic Transposition, aiming to unite the two theories in a process in which the knowledge to be taught is adapted to provoke reflections, establishing a setting for research that fosters the student's participation in the process and provokes discussions and decision making in order to encourage subjects to become engaged in transforming their own reality. In particular, the article provides an overview of the roadmaps detailed in the Masters thesis, applied in a class of IFC - Rio do Sul Campus

Paula Andrea Grawieski, Civiero; Marilaine de Fraga, Sant' Ana.

354

Functional reorganization of human motor cortex after unaffected side C7 nerve root transposition  

International Nuclear Information System (INIS)

Objective: To assess the characteristics of neuronal activity in human motor cortex after the seventh cervical nerve root transposition of the unaffected side by using functional MRI (fMRI). Methods: Thirteen patients who accepted the seventh cervical nerve root transposition of the unaffected side, due to total brachial plexus traction injury diagnosed by manifestation and operation, were examined retrospectively by using fMRI. 10 patients were injured on the left side and 3 on the right side. According to functional recovery of the affected hand, all subjects can be divided into 2 groups. The patients of the first group could not move the affected hand voluntarily. The patients of the second group could move the affected hand self-determined. 12 healthy volunteer's were also involved in this study as control. The fMRI examinations were performed by using echo-planer BOLD sequence. Then the SPM 99 software was used for post-processing. Results: The neuronal activation induced by the movement of both unaffected and affected upper' limb was seen in the contralateral PMC in all patients; Neuronal activation in the ipsilateral PMC evoked by movement of the unaffected extremity was seen in 10 cases, and induced by movement of the affected limb was seen in 7 cases. In the first group, the sharp of clusters in the contralateral PMC resulted by movement of the unaffected extremity showed normal in 9 eases, the average size of clusters resulted by the unaffected hand was 3159 (voxel), and resulted by the unaffected shoulder was 1746(voxel). The sharp of clusters in the contralateral PMC resulted by the affected shoulder or hand were revealed enlargement in 6 cases of each. In the second group, 1 case showed neuronal activation induced by movement of the affected limb in the PMC in both sides of motor cortex, and 2 cases showed neuronal activation in the contralateral PMC. Conclusions: Peripheral nerve injury was able to cause changes of motor cortex in human brain. Cortical area devoted to the affected extremity seems to persist for a long time with response to mental representation of movement. The functional reorganization of central nerve system may be present in several levels of the central nerve system and may be affected by multiple factors. (authors)

355

Acupuncture Points of the Horse’s Distal Thoracic Limb: A Neuroanatomic Approach to the Transposition of Traditional Points  

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Full Text Available Veterinary acupuncture charts were developed based on the concept of transpositional points whereby human acupuncture maps were adapted to animal anatomy. Transpositional acupuncture points have traditionally been placed in specific locations around the horse’s coronet and distal limb believed to be the closest approximation to the human distal limb points. Because the horse has a single digit and lacks several structures analogous to the human hand and foot, precisely transposing all of the human digital points is not anatomically possible. To date there is no published research on the effect of acupuncture treatment of the equine distal limb points. This paper presents a modified approach to equine distal limb point selection based on what is known from research on other species about the neuroanatomic method of acupuncture. A rationale is presented for modification of traditional equine ting points as well as additional points around the hoof and distal limb that do not appear in the standard textbooks of equine acupuncture. The anatomy and physiology of the equine foot likely to be affected by acupuncture are briefly reviewed. Modified neuroanatomic points are proposed that may be more accurate as transpositional points. As an example of clinical application, a neuroanatomic approach to acupuncture treatment of equine laminitis is presented.

Lisa S. Lancaster

2012-09-01

356

Intestinal growth adaptation and glucagon-like peptide 2 in rats with ileal--jejunal transposition or small bowel resection  

DEFF Research Database (Denmark)

Glucagon-like peptide 2 (GLP-2), produced by enteroendocrine L-cells, regulates intestinal growth. This study investigates circulating and intestinal GLP-2 levels in conditions with altered L-cell exposure to nutrients. Rats were allocated to the following experimental groups: ileal-jejunal transposition, resection of the proximal or distal half of the small intestine, and appropriate sham-operated controls. After two weeks, ileal-jejunal transposition led to pronounced growth of the transposed segment and also of the remaining intestinal segments. Plasma GLP-2 levels increased twofold, whereas GLP-2 levels in the intestinal segments were unchanged. In resected rats with reduced intestinal capacity, adaptive small bowel growth was more pronounced following proximal resection than distal small bowel resection. Circulating GLP-2 levels increased threefold in proximally resected animals, and twofold in the distally resected group. Tissue GLP-2 levels were unchanged in resected rats. The data indicate that transposition of a distal part of the small intestine, and thereby exposure of L cells to a more nutrient-rich chyme, leads to intestinal growth. The adaptive intestinal growth is associated with increased plasma levels of GLP-2, and GLP-2 seems to act in an endocrine as well as a paracrine manner.

Thulesen, J; Hartmann, B

2001-01-01

357

Primary leiomyosarcoma of saphenous vein presenting as deep venous thrombosis.  

Science.gov (United States)

Only a small number of venous leiomyosarcomas have been previously reported. Of these tumors, those of saphenous origin comprise a minority of cases. A 59-year-old man presented with symptoms of deep vein thrombosis and was eventually diagnosed with primary leiomyosarcoma of great saphenous vein origin. The tumor was treated with primary resection and femoral vein reconstruction with autologous patch. Although extremely rare, saphenous leiomyosarcoma can present as deep vein thrombosis. Vascular tumors should be included in the differential diagnosis of atypical extremity swelling refractory to conventional deep vein thrombosis management. PMID:24347138

Fremed, Daniel I; Faries, Peter L; Schanzer, Harry R; Marin, Michael L; Ting, Windsor

2014-12-01

358

Conditions of vein formation in the southern Appalachian foreland: constraints from vein geometries and fluid inclusions  

Science.gov (United States)

The Nolichucky Shale in the Whiteoak Mountain thrust sheet of the southern Appalachian foreland contains four coeval bed-normal calcite vein sets that trended 015°, 055°, 090° and 320° before thrusting. The pretectonic veins were displaced by syn-tectonic bed-parallel slickensided calcite veins during local Alleghanian thrusting. Fluid inclusion thermometry indicates precipitation of both bed-normal and bed-parallel veins from NaCl-CaCl 2 brines (27 wt% NaCl-equiv. salinity), at 80-110°C for bed-normal veins and 110°C for bed-parallel veins. These temperatures correspond to burial depths of 2.4-3.6 km, which were attained after the middle Mississippian. These pressure-corrected homogenization temperatures are comparable to time-temperature indicators, such as CAI and illite crystallinity, and indicate that inclusions were trapped near-maximum burial conditions and were not deformed after trapping. This conclusion is supported by the absence of petrographic evidence for inclusion failure and a worst-case mechanical analysis that indicates a lack of brittle deformation to inclusions after trapping. The four coeval bed-normal vein sets could not be formed by one simple stress field, nor by the development of a single structure, but required the interaction of at least two stress components or structures. It is proposed that the interaction of the Alleghanian and Ouachita orogenic stress components, beyond the limits of thrusting, produced the sets as coeval Alleghanian orthogonal (055°,320°) and Ouchita sub-orthogonal (015°, 090°) mode I fractures.

Foreman, J. Lincoln; Dunne, William M.

359

Intravascular ultrasound of the portal vein--normal anatomy.  

Science.gov (United States)

The purpose of this study was to evaluate the appearance of the normal portal vein with intravascular ultrasound. The portal vein was studied in 10 patients with colorectal carcinoma without known liver or pancreatic disease. For the intravascular portovenous examination, a 2.0-mm, 20-MHz ultrasound catheter was used. The field of view was 30 mm. The wall of the portal vein appeared as a single hyperechoic layer 0.5 to 0.8 mm in thickness. Normal structures adjacent to the portal vein, such as the common bile duct, the hepatic artery or small lymph nodes, were clearly separated from the lumen of the portal vein by the wall of the vein together with some periportal fat. In most cases the parenchyma of the pancreas could be separated from the wall of the vein. PMID:7619617

Hannesson, P H; Stridbeck, H; Lundstedt, C; Andrén-Sandberg, A; Ihse, I

1995-07-01

360

Lower extremity dep vein thrombosis in children  

International Nuclear Information System (INIS)

Of 113 leg venograms performed in patients of all ages between 1969 and 1982, 68 were in children 16 years old or less. The patients were all studied on a tilt table (method of Rabinov and Paulin) in a head-up, 40-500 incline without tourniquets, supporting their weight on the unaffected leg. Among the 68 venograms, 12 (18%) were positive for deep vein thrombosis. The clinical settings for thrombosis in children were post-catheterization (two patients), post surgery (two), tumor/tumor therapy (three), drug abuse (one), and idiopathic (three). There were no long-term clinical sequelae in five patients. Pulmonary infarction occurred in three, and three patients required either long-term anticoagulation or IVC clipping. Clinical diagnosis is no more accurate for the diagnosis of deep vein thrombosis in children than it is in adults. Venography is the best method for making an accurate diagnosis and directing subsequent therapy.(orig.)

 
 
 
 
361

Transposition-induced structural instability of Escherichia coli-mycobacteria shuttle vectors.  

Science.gov (United States)

Escherichia coli-mycobacteria shuttle vectors, derived from pAL5000 (a mycobacterial plasmid) and pUC19, were frequently found to undergo structural alterations due to transposition of IS1096, a Mycobacterium smegmatis transposable element, at a cluster of sites located within a small region of 60 bp, immediately upstream of a kanamycin resistance gene present in these vectors. The structural alterations led to deletion of large regions of the vector which, in several cases, were found to extend into the ORF2 (RepB) coding sequences of the pAL5000 replication region without affecting its replication capability. This suggests that the entire ORF2 coding sequences of the pAL5000 replication region may not be essential for replication of pAL5000-derived vectors. The deletion derivatives, which contain the minimal sequences required for replication and selection in mycobacteria, were found to be structurally stable and therefore these could be potentially used as stable vector systems for the transformation of mycobacteria. PMID:10087218

Chawla, M; Das Gupta, S K

1999-03-01

362

Hybrid dysgenesis in D. melanogaster is not a general release mechanism for DNA transpositions.  

Science.gov (United States)

Many spontaneous mutations are caused by the insertion or excision of DNA elements. Since most mutations are deleterious, evolution should favor a mechanism for genetically controlling the rate of movement of transposable elements in most, if not all, organisms. In Drosophila melanogaster a syndrome of correlated genetic changes, including mutation, chromosome breakage, and sterility, is observed in the hybrid progeny of crosses between different strains. This syndrome, which is termed hybrid dysgenesis, results from the movement of P-DNA elements. What is not clear is whether the movement of other types of transposable elements is under the same coordinated control. In this study the ability of hybrid dysgenesis to increase the rate of excision of 12 DNA elements at 16 mutant alleles and to induce insertion-bearing mutations to change to other mutant states was tested. The data show that hybrid dysgenesis caused by P-element transpositions does not act as a general stimulus for the movement of other Drosophila transposable elements. PMID:2820057

Woodruff, R C; Blount, J L; Thompson, J N

1987-09-01

363

The Managerial Reduction in the Management Technologies Transposition Process to Public Organizations  

Directory of Open Access Journals (Sweden)

Full Text Available This essay discusses the phenomenon of the implementation of technologies designed in the management business, with emphasis on relations with public organizations. It proposes a reflection on the concept of sociological reduction by Guerreiro Ramos, recovering its roots in Husserl and Heidegger and their relationship with the concepts of creative adaptation and the translation of managerial issues. Contextualized in the paradigm of new public management and the list of values and assumptions on which this movement is based, the analysis of the reproduction of practices known in private organizations by public ones seeking their legitimacy has revealed the formality and ceremonial aspect of this contemporary phenomenon. The importance of bringing knowledge from the organizational field that subsidizes management as well as the coherence of these cultural objects in terms of concepts and assumptions of organization are highlighted here. The process of transpositions, contrasting with reproducible traits of Brazilian managerial culture that are historically constructed but consistent with the notion of sociological reduction, requires a critical, conscious and engaged attitude on the part of members of the organization not only regarding the relevance of the imported content but also giving new meaning to the concepts underlying the management technologies.

Sandro Trescastro Bergue

2010-04-01

364

Thallium-201 myocardial imaging in case involving transposition of the great arteries after arterial switch operation  

International Nuclear Information System (INIS)

Forty patients, including 39 with complete transposition of the great arteries and one with double outlet right ventricle, after arterial switch operation were studied with thallium myocardial imaging (TMI). In patients who had post-operative cardiac catheterization, the TMI findings were compared to those of catheterization studies. The right ventricular to left ventricular up-take ratio (RV/LV ratio) shown by TMI correlated well with the right-to-left ventricular systolic pressure ratio. Supravalvular pulmonic stenosis with significant pressure gradient was found in 14 patients, and all of them were noted to have an elevated RV/LV ratio. This ratio was noted to increase progressively on serial TMI studies in most patients who had significant pulmonic stenosis on first post-operative catheterization. Three patients had significant perfusion defects indicating the presence of myocardial damage. Two of them had occlusion of the coronary artery, but the other one had no coronary abnormalities able to be found by coronary arteriography. Air embolism or some other intra-operative transient insults to the myocardium were most likely to have been responsible for the perfusion defects. Thus, TMI was valuable as one of the noninvasive tools for follow-up of patients after arterial switching, particularly for those with late complications such as supravalvular pulmonic stenosis and coronary problems. (author)

365

Thallium-201 myocardial imaging in case involving transposition of the great arteries after arterial switch operation  

Energy Technology Data Exchange (ETDEWEB)

Forty patients, including 39 with complete transposition of the great arteries and one with double outlet right ventricle, after arterial switch operation were studied with thallium myocardial imaging (TMI). In patients who had post-operative cardiac catheterization, the TMI findings were compared to those of catheterization studies. The right ventricular to left ventricular up-take ratio (RV/LV ratio) shown by TMI correlated well with the right-to-left ventricular systolic pressure ratio. Supravalvular pulmonic stenosis with significant pressure gradient was found in 14 patients, and all of them were noted to have an elevated RV/LV ratio. This ratio was noted to increase progressively on serial TMI studies in most patients who had significant pulmonic stenosis on first post-operative catheterization. Three patients had significant perfusion defects indicating the presence of myocardial damage. Two of them had occlusion of the coronary artery, but the other one had no coronary abnormalities able to be found by coronary arteriography. Air embolism or some other intra-operative transient insults to the myocardium were most likely to have been responsible for the perfusion defects. Thus, TMI was valuable as one of the noninvasive tools for follow-up of patients after arterial switching, particularly for those with late complications such as supravalvular pulmonic stenosis and coronary problems. (author).

Fukushima, Hideki; Satou, Seiichi; Satou, Isamu (Niigata Univ. (Japan). School of Medicine); Iwatani, Hajime; Tsuda, Etsuko; Nakamura, Hiroshi; Ono, Yasuo; Kohata, Tohru; Kamiya, Tetsurou

1992-05-01

366

Artificial language comprehension and size transposition by a California sea lion (Zalophus californianus).  

Science.gov (United States)

A variation of the conditional discrimination procedure defines relations between stimuli (for example, gestural signs and their referents), and it has been used to study language comprehension in California sea lions. The animals followed instructions given by a trainer's gestures designating properties of size, brightness, and location (adjectives), types of objects (nouns), and actions (verbs). The signs can be combined and recombined according to a conditional sequence or syntax. In this study, we sought to determine whether adjectives for size had an absolute meaning, that is, small and large, as well as a comparative meaning, that is, smaller and larger. A sea lion, Rocky, was given experience with signs designating standard small and large spheres in commands like LARGE BALL MOUTH. On transposition tests, the small ball was removed and the previously designated large ball was paired with an even larger one. The results showed that the adjectives had both an absolute and a relative meaning. Object choices and searching behavior revealed that the sea lion processed information about the relation of size as well as about the specific characteristics of the sizes of spheres that instantiated the relations. PMID:3802779

Schusterman, R J; Krieger, K

1986-12-01

367

Long Term Follow-Up in Inferior Alveolar Nerve Transposition: Our Experience  

Science.gov (United States)

Introduction. Inferior alveolar nerve transposition (IANT) is a surgical technique used in implantoprosthetic rehabilitation of the atrophic lower jaw which has not been well embraced because of the high risk of damage to the inferior alveolar nerve (IAN). There are cases in which this method is essential to obtain good morphologic and functional rebalancing of the jaw. In this paper, the authors present their experience with IANT, analyzing the various situations in which IANT is the only surgical preprosthetic option. Methods. Between 2003 and 2011, 35 patients underwent surgical IANT at our center. Thermal and physical sensitivity were evaluated in each patient during follow-up. The follow-up ranged from 14 to 101 months. Results and Conclusion. Based on our experience, absolute indications of IANT are as follows: (1) class IV, V, or VI of Cawood and Howell with extrusion of the antagonist tooth and reduced prosthetic free space; (2) class V or VI of Cawood and Howell with presence of interforaminal teeth; (3) class V or VI of Cawood and Howell if patient desires fast implantoprosthetic rehabilitation with predictable outcomes; (4) class VI of Cawood and Howell when mandibular height increase with inlay grafts is advisable. PMID:24949422

Gasparini, Giulio; Boniello, Roberto; Marianetti, Tito Matteo; Foresta, Enrico; Torroni, Andrea; Longo, Giuliana; Azzuni, Camillo; Pelo, Sandro

2014-01-01

368

nanos gene control DNA mediates developmentally regulated transposition in the yellow fever mosquito Aedes aegypti.  

Science.gov (United States)

Transposable elements (TEs) are proposed as a basis for developing drive systems to spread pathogen resistance genes through vector mosquito populations. The use of transcriptional and translational control DNA elements from genes expressed specifically in the insect germ line to mediate transposition offers possibilities for mitigating some of the concerns about transgene behavior in the target vector species and eliminating effects on nontarget organisms. Here, we describe the successful use of the promoter and untranslated regions from the nanos (nos) orthologous gene of the yellow fever mosquito, Aedes aegypti, to control sex- and tissue-specific expression of exogenously derived mariner MosI transposase-encoding DNA. Transgenic mosquitoes expressed transposase mRNA in abundance near or equal to the endogenous nos transcript and exclusively in the female germ cells. In addition, MosI mRNA was deposited in developing oocytes and localized and maintained at the posterior pole during early embryonic development. Importantly, four of five transgenic lines examined were capable of mobilizing a second MosI transgene into the mosquito genome, indicating that functional transposase was being produced. Thus, the nos control sequences show promise as part of a TE-based gene drive system. PMID:17548819

Adelman, Zach N; Jasinskiene, Nijole; Onal, Sedef; Juhn, Jennifer; Ashikyan, Aurora; Salampessy, Michael; MacCauley, Todd; James, Anthony A

2007-06-12

369

Metabolic alterations and neurodevelopmental outcome of infants with transposition of the great arteries.  

Science.gov (United States)

Abnormal neurodevelopment has been reported for infants who were born with transposition of the great arteries (TGA) and underwent arterial switch operation (ASO). This study evaluates the cerebral metabolism of TGA infants at birth and before ASO and neurodevelopment 1 year after ASO. Proton magnetic resonance spectroscopy (1H-MRS) was performed on 16 full-term TGA brains before ASO within 3-6 days after birth. The brain metabolite ratios of [NAA/Cr], [Cho/Cr], and [mI/Cr] evaluated measured. Ten infants were evaluated at 1 year using the Bayley Scales of Infants Development II (BSED II). Cerebral metabolism of infants with TGA was altered in parietal white matter (PWM) and occipital gray matter (OGM) at birth before ASO. One year after ASO, [Cho/Cr] in PWM remained altered, but all metabolic ratios in OGM were normal. The results of BSID II at 1 year showed delayed mental and psychomotor development. This delayed neurodevelopmental outcome may reflect consequences of the altered cerebral metabolism in PWM measured by 1H-MRS. It is speculated that the abnormal hemodynamics due to TGA in utero may be responsible for the impaired cerebral metabolism and the subsequent neurodevelopmental deficit. PMID:16897317

Park, I Sook; Yoon, S Young; Min, J Yeon; Kim, Y Hwue; Ko, J Kok; Kim, K Soo; Seo, D Man; Lee, J Hee

2006-01-01

370

The managerial reduction in the management technologies transposition process to public organizations  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in english This essay discusses the phenomenon of the implementation of technologies designed in the management business, with emphasis on relations with public organizations. It proposes a reflection on the concept of sociological reduction by Guerreiro Ramos, recovering its roots in Husserl and Heidegger and [...] their relationship with the concepts of creative adaptation and the translation of managerial issues. Contextualized in the paradigm of new public management and the list of values and assumptions on which this movement is based, the analysis of the reproduction of practices known in private organizations by public ones seeking their legitimacy has revealed the formality and ceremonial aspect of this contemporary phenomenon. The importance of bringing knowledge from the organizational field that subsidizes management as well as the coherence of these cultural objects in terms of concepts and assumptions of organization are highlighted here. The process of transpositions, contrasting with reproducible traits of Brazilian managerial culture that are historically constructed but consistent with the notion of sociological reduction, requires a critical, conscious and engaged attitude on the part of members of the organization not only regarding the relevance of the imported content but also giving new meaning to the concepts underlying the management technologies.

Sandro Trescastro, Bergue.

371

Characterizing the ultrastructure of primary ciliary dyskinesia transposition defect using electron tomography.  

Science.gov (United States)

Primary ciliary dyskinesia is an autosomal recessive disorder affecting the motility of cilia. There are a range of ultrastructural ciliary defects that lead to associated clinical symptoms including ineffective mucus clearance, reduced lung function, infertility, and left-right isomerism. Mutations in radial spoke head proteins are a known cause of primary ciliary dyskinesia. Ultrastructually these defects are identified by a portion of cilia lacking a central pair and transposed outer microtubular doublets. We have repeatedly observed an intermittent loss of the central pair in patients with a transposition defect. To further understand the central pair changes in these radial spoke head mutations we employ electron tomography, a high resolution electron microscope technique, to elucidate in three dimensions the ultrastructural arrangements caused by mutation of the RSPH4A gene. We thereby provide an explanation of the structures observed by conventional electron microscopy studies. We demonstrate that the central pair can be present within the cilium. In some cilia, the central pair rotates at the base of the axoneme. We propose that it is this rotation that gives rise to an intermittent appearance of the central pair when viewed under conventional electron microscopy. We discuss the potential causes and consequences of these findings. © 2014 Wiley Periodicals, Inc. PMID:24616277

Burgoyne, Thomas; Lewis, Amy; Dewar, Ann; Luther, Pradeep; Hogg, Claire; Shoemark, Amelia; Dixon, Mellisa

2014-05-01

372

Complete mouth rehabilitation after transposition osteotomy based on intraoral scanning: an experimental approach.  

Science.gov (United States)

This article describes the surgical and prosthodontic treatment of a patient with severe dysgnathia combined with amelogenesis imperfecta. To the authors' knowledge, this is the first treatment report to describe the application of intraoral scanning for a complete mouth reconstruction. After transposition osteotomy, the treatment included the simultaneous fabrication of antagonistic computer-aided design/computer-aided manufactured (CAD/CAM) long-term interim restorations for the maxilla and mandible and the establishment of a new centric relation position and adequate vertical dimension of occlusion. Particularly in complex situations, the major advantages of intraoral scanning can be identified as an extended magnification of the 3-dimensional digital data to control the preparation and impression at the dental office. However, the presented treatment revealed some deficiencies in the digital work flow that must be rectified. In combination with high-performance polymers, the CAD/CAM technology offers a wide range of new treatment options and simplifies the fabrication of long-term interim restorations. Although in the present treatment the esthetic and functional requirements of the patient were met, no published studies of this procedure have been based on intraoral scanning, and the approach has to be considered experimental. PMID:24529842

Güth, Jan-Frederik; Edelhoff, Daniel; Ihloff, Hela; Mast, Gerson

2014-08-01

373

Outcome of pregnancy in patients with congenitally corrected transposition of the great arteries.  

Science.gov (United States)

To assess maternal and fetal outcome of pregnancy in patients with congenitally corrected transposition of the great arteries, we reviewed 19 patients (18 retrospectively) who had 45 pregnancies. Their ages ranged from 18 to 40 years (mean 27) at the time of pregnancy. Thirty-six percent of the pregnancies were undertaken while patients were cyanosed, 7% in patients with unpaced complete heart block, and 16% were undertaken after surgical repair of the associated anomalies. Change in functional class and maternal cardiovascular complications during pregnancy were analyzed as well as number of live births, miscarriages, elective termination of pregnancies, timing of delivery, and incidence of cardiac defects in the live offspring. Five patients (26% of patients) developed cardiovascular complications during pregnancy, namely congestive heart failure (3 patients), worsening cyanosis (1 patient), and cerebrovascular accident (1 patient). No maternal deaths occurred. There were 27 live births (60%), 12 miscarriages (27%), and 6 elective terminations of pregnancy (13%). Cyanosis was a significant risk factor for miscarriage. One live offspring had congenital heart disease. Close follow-up of these patients during pregnancy, by a team of experienced physicians, is recommended. PMID:10513781

Therrien, J; Barnes, I; Somerville, J

1999-10-01

374

Osmotic shock improves Tnt1 transposition frequency in Medicago truncatula cv Jemalong during in vitro regeneration.  

Science.gov (United States)

Insertion mutant collections are powerful tools for genetic studies in plants. Although large-scale insertional mutagenesis using T-DNA is not feasible in legumes, the Tnt1 tobacco retrotransposon can be used as a very efficient mutagen in the Medicago truncatula R108 genotype. In this article, we show that Tnt1 can also be exploited to create insertional mutants via transformation and/or regeneration in the reference cultivar Jemalong. Tnt1 insertional mutagenesis in Jemalong following Agrobacterium tumefaciens-mediated transformation was found to be very efficient, with an average of greater than 15 insertions/line. In contrast, regeneration using low-copy transgenic starter lines resulted in a highly variable rate of new Tnt1 insertions. With the goal of increasing the number of additional Tnt1 insertions during regeneration of starter lines, we have compared the insertion frequencies for a number of different regeneration protocols. In addition, we have been able to show that sucrose-mediated osmotic shock preceding regeneration significantly increases the transposition frequency. Under optimal conditions, 95% of the regenerated Jemalong plants possess new insertions. PMID:19688215

Iantcheva, Anelia; Chabaud, Mireille; Cosson, Viviane; Barascud, Marielle; Schutz, Bernadette; Primard-Brisset, Catherine; Durand, Patricia; Barker, David G; Vlahova, Mariana; Ratet, Pascal

2009-10-01

375

On a bound for the diameter of Cayley networks of symmetric groups generated by transposition trees  

CERN Document Server

A problem of both theoretical and practical interest is to determine estimates or bounds for the diameter of Cayley graphs of groups, and to know for which cases the bounds are exact or how far away the bounds can be from the true value in the worst case. Let $\\Gamma$ be a Cayley graph of the symmetric group on $n$ letters generated by a transposition tree $T$. In \\cite{Akers:Krishnamurthy:1989} \\cite{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 $c(\\pi)$ denotes the number of cycles in $\\pi$, and $\\dist_T$ is the distance function in $T$. In this work, we assess the sharpness and strictness of this upper bound. We show that the upper bound is exact for all trees of maximum diameter and also for all trees of minimum diameter, and we exhibit some families of trees (that are non-extremal) for which the bound is strict. We then show that for every $n$, there exists a tree on $n$ vertices, suc...

Ganesan, Ashwin

2011-01-01

376

Azygos vein injury in blunt chest trauma.  

Science.gov (United States)

Injuries to the azygos vein in a blunt chest trauma are uncommon and have previously been described in only 21 cases. The diagnosis is crucially based on massive right haemothorax with signs of shock, hypotension and altered mental status. The severity of the trauma, speed of transport and surgical intervention are often decisive for the survival of the patient. This is confirmed by the three cases we report below. PMID:18345276

Drac, Pavel; Manak, Pavel; Klein, Jiri; Kral, Vladimir

2007-12-01

377

Pulmonary vein thrombosis after metastatic liposarcoma.  

Science.gov (United States)

Pulmonary vein thrombosis has been described in several patients including those with malignancy, pulmonary veno-occlusive disease, fibrosing mediastinitis, and after lung transplantation. 1-5 Although liposarcoma frequently metastasizes to the lungs, to our knowledge pulmonary venous (tumor) thrombosis with lung infarction has not been previously mentioned as part of this disease. We report a case of liposarcoma with pulmonary metastases with secondary pulmonary venous (tumor) thrombosis and infarction, presenting 3 years after diagnosis of the original tumor. PMID:22482350

Tamizifar, Babak; Zadeh, Maryam Rismankar; Foroghi, Elham

2012-01-01

378

Atypical ultrasonographic presentation of ovarian vein thrombosis.  

Science.gov (United States)

Ovarian vein trombosis (OVT) is a pathologic entity classically considered as a postpartum complication and only rarely associated with other diseases. Due to its vague symptoms, it is usually underdiagnosed. However its consequences can be fatal. We report a case of an incidental finding of ovarian thrombosis in an asymptomatic 45-year-old woman who underwent surgery due to the ultrasonographic finding of a para-ovarian cyst. PMID:21941972

Graupera, B; Pascual, M A; Garcia, P; Di Paola, R; Ubeda, B; Tresserra, F

2011-01-01

379

Superior mesenteric vein thrombosis: a case report  

International Nuclear Information System (INIS)

A case of superior mesenteric mesenteric vein thrombosis diagnosed by computed tomography in 29 year-old man with abdominal pain, without any predisposing pathologic disorders is reported. This patient had a chronic evolution, had not resulting in mesenteric infarction. He was treated conservatively with anticoagulant therapy and recanalization of the involved vessels was demonstrated by another computed tomography. The patient is asymptomatic now. (author). 8 refs., 3 figs

380

Developing an Interventional Radiology Varicose Vein Practice  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A varicose vein or phlebology practice can be incorporated into an outpatient interventional radiology practice with some proper planning. For an established interventional radiology clinic practice, the barriers to entry into such a phlebology practice are actually fairly low. A critical component in this process is establishing a business plan. An intact business plan can provide the proper foundation for any business venture, including a successful phlebology practice. Key steps in any bus...

Antonacci, Vittorio P.

2005-01-01

 
 
 
 
381

Trauma da Veia Porta / Portal vein injury  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: O trauma da veia porta é raro e freqüentemente fatal por causa de exsanguinação e alta incidência de lesões de estruturas adjacentes. Devido às pecualiaridades desta lesão e diferentes condutas propostas na literatura, o objetivo dos autores é relatar a experiência neste tipo de lesão. MÉT [...] ODO: Estudo retrospectivo, de janeiro de 1994 e dezembro de 2001, de 1370 pacientes submetidos à laparotomia devido trauma abdominal. Entre esses, 15 pacientes apresentavam lesão da veia porta. As lesões foram classificadas conforme a sua extensão e localização. RESULTADOS: O mecanismo de trauma predominante foi o penetrante. O diagnóstico da lesão foi realizado no intraoperatório. Os procedimentos executados foram: sutura, anastomose término-terminal e ligadura da veia porta. A mortalidade foi de 53,3%. CONCLUSÃO: A lesão da veia porta possui alta taxa de mortalidade e o atendimento adequado está diretamente relacionado à sobrevida. Abstract in english BACKGROUND: Portal vein injury is rare and frequently lethal because of exsanguination and high incidence of injuries to the adjacent structures. Due the peculiarity of this lesion and different conducts proposed in the literature, the authors' objetive is to report their experience in the treatment [...] of this lesion. METHODS: This study, is a retrospective analysis between January 1994 and December 2001, during which 1370 patients were treated with laparotomy for isolated abdominal trauma. Among these patients 15 had injury to the portal vein. The injuries were classified according to extension and location. RESULTS: The predominant mechanism of trauma was penetrating. The diagnosis was made intraoperatively. The procedures were: suture, end-to-end anastomosis and ligation of the portal vein. The mortality rate was 53,3%. CONCLUSION: Portal vein lesion had high mortality and advanced assistance is essential to increase survivors.

Gustavo Pereira, Fraga; Mario, Mantovani; Elcio Shiyoiti, Hirano; Raquel Franco, Leal.

382

Trauma da Veia Porta Portal vein injury  

Directory of Open Access Journals (Sweden)

Full Text Available OBJETIVO: O trauma da veia porta é raro e freqüentemente fatal por causa de exsanguinação e alta incidência de lesões de estruturas adjacentes. Devido às pecualiaridades desta lesão e diferentes condutas propostas na literatura, o objetivo dos autores é relatar a experiência neste tipo de lesão. MÉTODO: Estudo retrospectivo, de janeiro de 1994 e dezembro de 2001, de 1370 pacientes submetidos à laparotomia devido trauma abdominal. Entre esses, 15 pacientes apresentavam lesão da veia porta. As lesões foram classificadas conforme a sua extensão e localização. RESULTADOS: O mecanismo de trauma predominante foi o penetrante. O diagnóstico da lesão foi realizado no intraoperatório. Os procedimentos executados foram: sutura, anastomose término-terminal e ligadura da veia porta. A mortalidade foi de 53,3%. CONCLUSÃO: A lesão da veia porta possui alta taxa de mortalidade e o atendimento adequado está diretamente relacionado à sobrevida.BACKGROUND: Portal vein injury is rare and frequently lethal because of exsanguination and high incidence of injuries to the adjacent structures. Due the peculiarity of this lesion and different conducts proposed in the literature, the authors' objetive is to report their experience in the treatment of this lesion. METHODS: This study, is a retrospective analysis between January 1994 and December 2001, during which 1370 patients were treated with laparotomy for isolated abdominal trauma. Among these patients 15 had injury to the portal vein. The injuries were classified according to extension and location. RESULTS: The predominant mechanism of trauma was penetrating. The diagnosis was made intraoperatively. The procedures were: suture, end-to-end anastomosis and ligation of the portal vein. The mortality rate was 53,3%. CONCLUSION: Portal vein lesion had high mortality and advanced assistance is essential to increase survivors.

Gustavo Pereira Fraga

2003-02-01

383

Angiographic investigation of the male gonadal vein  

International Nuclear Information System (INIS)

Retrograde angiography of the gonadal vein was carried out in 110 cases. Because of valve-insufficience the left vena spermatica interna filled spontaneously from the vena renalis in the majority (88%) of the cases. In the cases of well functioning valves superselective angiography was carried out. The examination is advised in cases of the following syndromes: varicokele, abdominal tumours, determination of the place of non-palpable testes, Klinefelter syndrome. (L.E.)

384

Percutaneous Transumbilical Portal Vein Embolization in a Patient with a Ruptured Hepatocellular Carcinoma Supplied by the Portal Vein  

International Nuclear Information System (INIS)

We describe a case of a ruptured hepatocellular carcinoma supplied by the portal vein that was successfully treated with portal vein embolization via a percutaneous transumbilical approach. A contrast material-enhanced computed tomographic (CT) scan showed the presence of a large hypervascular tumor on portal venous phase as well as right hepatic vein thrombosis and hemoperitoneum that prevented portal vein embolization by the use of the percutaneous and transjugular transhepatic approach. The use of percutaneous transumbilical portal vein embolization can be an alternative option in this situation.

385

Produção de mudas de manjericão (Ocimum basilicum L.) em diferentes substratos e luminosidades / Sweet basil (Ocimum basilicum L.) seedling production in different substrates and luminosities  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Apesar de vários usos na cultura popular, poucos trabalhos vêm sendo desenvolvidos em relação ao cultivo do manjericão, sendo a maior parte dos estudos relacionada à identificação dos compostos químicos e à farmacologia. Este trabalho foi realizado com o objetivo de avaliar o efeito de diferentes lu [...] minosidades e substratos na emergência, crescimento inicial e qualidade de mudas de manjericão. Utilizaram-se três substratos (substrato comercial Plantmax®, mistura de terra + areia + cama de frango (1:1:1) e terra + areia + Plantmax® (1:1:1) e dois níveis de luminosidade (Pleno Sol e 50%). O delineamento experimental foi de blocos casualizados em esquema fatorial 2 (Luz) x 3 (Substratos), com quatro repetições. Avaliou-se diariamente o percentual e o índice de velocidade de emergência, e aos 60 dias após a semeadura, o crescimento e a qualidade da muda. Os substratos e níveis de luz não alteraram a porcentagem de emergência das plântulas, entretanto a velocidade de emergência foi maior em Plantmax quando em pleno sol e não diferiu entre os substratos em 50% de sombreamento. No substrato terra + areia + cama-de-frango e a pleno sol as mudas apresentaram maior crescimento e qualidade. Recomenda-se a semeadura direta do manjericão em terra + areia + cama de frango pois evita-se o transplante minimizando as perdas e a necessidade de mão de obra. Abstract in english Although sweet basil has been frequently used in popular culture, few studies have been developed concerning its cultivation, and most of them are related to the identification of its chemical compounds and pharmacology. The aim of this study was to assess the effect of different luminosities and su [...] bstrates on the emergence, initial growth and quality of sweet basil seedlings. Three substrates (Plantmax® commercial substrate, a mixture of soil + sand + chicken manure (1:1:1), and soil + sand + Plantmax® (1:1:1) were used, together with two light levels (Full sun and 50%). The experimental design was in randomized blocks, in 2 (Light) x 3 (Substrates) factorial arrangement with four replicates. The emergence percentage and velocity index were daily evaluated, and at 60 days after sowing seedling growth and quality were also evaluated. The substrates and light levels did not alter the percentage of seedling emergence; however, the emergence velocity was higher in Plantmax and full sun but did not differ among substrates under 50% shading. In the substrate soil + sand + chicken manure and full sun, seedlings had higher growth and quality. It is recommended thus that sweet basil be directly sown in soil + sand + chicken manure since it prevents transplanting, minimizing losses and the need of labor.

N.H, Souza; T.O, Carnevali; D.D, Ramos; S.P.Q, Scalon; M.E, Marchetti; M.C, Vieira.

386

Finger Vein Recognition and Authentication System  

Directory of Open Access Journals (Sweden)

Full Text Available The protection for private information has steadily increased with the demand that the authentication has to be done in a highly secured method it is also simple and convenient. With this consideration and requirements for the emerging devices has to been done by the human physiological and biometric structures and behavior. One such biometrical identity is used in this paper is the finger vein. This is used as a biometric identity and authenticated also is experimented. The paper reveals about the high security system in our society to protect the personal information that is being theft. The main objective of this work is to implement a low cost budget system for protection purposes. This system is very simple and convenient not so complex like other biometric identification systems Finger print, palm size, hand shape, face recognition, iris identification and so on. Based on the application the component requirements can be increased or decreased which will constantly reflect on the cost of implementation of this project. Here the finger vein recognition system is implemented using MATLAB which is highly helpful in image processing applications. In this the real time finger is captured on and the image is processed using this software before the image is used. A novel finger vein algorithm is equipped in this system.

Vasuki M

2014-04-01

387

Uranium distribution in iron veins in Israel  

International Nuclear Information System (INIS)

Uranium-series nuclides are responsible for the ?-ray anomalies associated with iron veins in Israel; Th and K contributions are negligible. The U content in hand samples is as high as 2000 ppm. Uranium, like a variety of other trace metals encountered, is disseminated within the Fe phases and does not form independent minerals even at high concentrations. The richest U content is found in hematite. Goethite, derived from the alteration of hematite, contains less U, but still considerably more than the U-poor marine carbonate host rocks, generally of Cretaceous age. Uranium, unlike the other associated trace metals, is geographically confined to those iron veins found within the phosphorite province of the Negev, whereas Fe and other trace metals, which are believed to be derived from hydrothermal solutions rising from depth, are also found along fault zones elsewhere. Uranium is believed to be scavenged from Cenomanian aquifer groundwaters enriched in U which were leached through weathering of Senonian phosphorites. The iron veins enriched in U and other trace metals are located along structural elements which were activated after the Miocene, developing up to subrecent times. 19 refs.; 7 figs.; 2 tabs

388

Timing of retinal vein occlusion laser photocoagulation  

Directory of Open Access Journals (Sweden)

Full Text Available AIM:To observe the clinical curative effect of different duration of retinal vein occlusion(RVOby laser photocoagulation treatment, discuss the timing of the RVO laser photocoagulation treatment, provide the basis for clinical choice of RVO photocoagulation treatment time. METHODS: Retrospective analysis. Line selection retinal laser photocoagulation treatment for 103 cases(103 eyeswith RVO, patients were divided into three groups according to the onset time. In group A(46 eyes, course ?1mo, 28 eyes with branch retinal vein occlusion(BRVO, 18 eyes with central retinal vein occlusion(CRVO; 30 eyes were ischemic RVO, 16 eyes were non-ischemic RVO. In group B(38 eyes, 1moRESULTS: The best corrected visual acuity improved rate, retinal hemorrhage, macular edema, absorption, macular center concave thickness decreased of patients with different course after RVO photocoagulation treatment, the early group was better than that of the late, non-ischemic RVO was better than that of ischemic RVO, laser photocoagulation treatment effect BRVO was better than that of CRVO and the difference was statistically significant(PCONCLUSION: RVO laser photocoagulation in the early intervention treatment can accelerate the retinal hemorrhage, macular edema, absorption, effectively protect the patient's existing vision, improve the long-term vision, and has a certain clinical practical significance.

Wei Zhang

2014-08-01

389

A complicated case of deep vein thrombosis  

Directory of Open Access Journals (Sweden)

Full Text Available We report a case of a patient with deep vein thrombosis (DVT and pulmonary thromboembolism (PTE associated to portal vein thrombosis (PVT, complicated by hospital-acquired pneumonia (HAP. The pathogenesis of DVT is multifactorial; among risk factors we can list: transitory situations (surgical interventions, infectious diseases with fever, traumas, acquired conditions (neoplasms, antiphospholipid syndrome or genetically determined situations (thrombophilia. PVT of the sovrahepatic veins is responsible for 5-10% of portal hypertension cases in adults and can be associated to local or systemic infections. PVT is present in 10% of patients with cirrhosis and often associated to cancers. It can also complicate a surgery abdominal intervention. HAP is defined as pneumonia that appears for the first time within 48 h of hospital admission. In Internal Medicine Departments the incidence is 7-10 cases/1.000 of hospital admissions, with an important impact in terms of both mortality and morbility. An early diagnosis, together with a correct identification of microbiologic agents in cause, allows a suitable antibiotic therapy with consequent improvement of clinical prognosis and a meaningful reduction of mortality. Main risk factors are: age, hospital and department. An important variable to be considered is the onset of pneumonia. The later is the onset of HAP (5 or more days from the admission to hospital, the more often is associated to multidrug resistant (MRD microorganisms, poorly responsive to antibiotic.

Elena Cerutti

2013-01-01

390

The vertebral venous plexuses: the internal veins are muscular and external veins have valves.  

Science.gov (United States)

The internal and external vertebral venous plexuses (VVP) extend the length of the vertebral column. Authoritative sources state that these veins are devoid of valves, permitting bidirectional blood flow and facilitating the hematogenous spread of malignant tumors that have venous connections with these plexuses. The aim of this investigation was to identify morphologic features that might influence blood flow in the VVP. The VVP of 12 adult cadavers (seven female, mean age 79.5 years) were examined by macro- and micro-dissection and representative veins removed for histology and immunohistochemistry (smooth muscle antibody staining). A total of 26, mostly bicuspid, valves were identified in 19 of 56 veins (34%) from the external VVP, all orientated to promote blood flow towards the internal VVP. The internal VVP was characterized by four main longitudinal channels with transverse interconnections; the maximum caliber of the longitudinal anterior internal VVP veins was significantly greater than their posterior counterparts (P internal VVP veins was striking, consisting of numerous bridging trabeculae (cords, thin membranes and thick bridges) predominantly within the longitudinal venous channels. Trabeculae were composed of collagen and smooth muscle and also contained numerous small arteries and nerve fibers. A similar internal venous trabecular meshwork is known to exist within the dural venous sinuses of the skull. It may serve to prevent venous overdistension or collapse, to regulate the direction and velocity of venous blood flow, or is possibly involved in thermoregulation or other homeostatic processes. PMID:21976364

Stringer, Mark D; Restieaux, Matthew; Fisher, Amanda L; Crosado, Brynley

2012-07-01

391

Absence of Middle Hepatic Vein Combined with Retro-Aortic Left Renal Vein: a Very Rare Case Report  

Science.gov (United States)

The hepatic and renal veins drain into the inferior vena cava. The upper group of hepatic veins consists of three veins which extend to the posterior face of the liver to join the inferior cava. The left renal vein passes anterior to the aorta just below the origin of the superior mesenteric artery. We detected a variation in the hepatic and renal veins in a multislice CT angiogram of a nine-year-old male patient in the Radiology Department of Afyon Kocatepe University Medical School. The upper group hepatic veins normally drains into the inferior vena cava as three separate trunks, namely the right, left and middle. In our case, we found that only the right and left hepatic veins existed and the middle hepatic vein was absent. Furthermore, the left renal vein, which normally passes anterior to the abdominal aorta, was retro-aortic. Left renal vein variations are of great importance in planning retroperitoneal surgery and vascular interventions. Knowledge of a patient’s hepatic vein and renovascular anatomy and determining their variations and anomalies are of critical importance to abdominal operations, transplantations and preoperative evaluation of endovascular interventions.

Turamanlar, Ozan; K?rp?ko, Oguz; Ozen, Oguz Aslan; Degirmenci, Bumin; Akcer, Sezer; Uygur, Ramazan

2012-01-01

392

Transpositional activation of mPing in an asymmetric nuclear somatic cell hybrid of rice and Zizania latifolia was accompanied by massive element loss.  

Science.gov (United States)

We have reported previously that the most active miniature inverted terminal repeat transposable element (MITE) of rice, mPing, was transpositionally mobilized in several rice recombinant inbred lines (RILs) derived from an introgressive hybridization between rice and wild rice (Zizania latifolia Griseb.). To further study the phenomenon of hybridization-induced mPing activity, we undertook the present study to investigate the element's behavior in a highly asymmetric somatic nuclear hybrid (SH6) of rice and Z. latifolia, which is similar in genomic composition to that of the RILs, though probably contains more introgressed alien chromatins from the donor species than the RILs. We found that mPing, together with its transposase-donor, Pong, underwent rampant transpositional activation in the somatic hybrid (SH6). Because possible effects of protoplast isolation and cell culture can be ruled out, we attribute the transpositional activation of mPing and Pong in SH6 to the process of asymmetric somatic hybridization, namely, one-step introgression of multiple chromatin segments of the donor species Z. latifolia into the recipient rice genome. A salient feature of mPing transposition in the somatic hybrid is that the element's activation was accompanied by massive loss of its original copies, i.e., abortive transpositions, which was not observed in previously reported cases of mPing activity. These data not only corroborated our earlier finding that wide hybridization and introgression may trigger transpositional activation of otherwise quiescent transposable elements, but also suggest that transpositional mobilization of a MITE like mPing can be accompanied by dramatic reduction of its original copy numbers under certain conditions, thus provide novel insights into the dynamics of MITEs in the course of genome evolution. PMID:19711051

Shan, X H; Ou, X F; Liu, Z L; Dong, Y Z; Lin, X Y; Li, X W; Liu, B

2009-11-01

393

Quantitative modeling of quartz vein sealing  

Science.gov (United States)

Mineral precipitation significantly effects many aspects of fluid-rock interaction across all length scales, as the dynamical change of permeability, of mechanical interaction and redistribution of dissolved material. The hydrothermal growth of quartz establishes one of the most important mineralization processes in fractures. Tectonically caused fracturing, deformation and fluid transport leaves clear detectable traces in the microstructure of the mineralized veins. As these patterns give hints on the deformation history and the fluid pathways through former fracture networks, accurate spatio-temporal modeling of vein mineralization is of special interest, and the objective of this study. Due to the intricate polycrystalline geometries involved, the underlying physical processes like diffusion, advection and crystal growth have to be captured at the grain scale. To this end, we adapt a thermodynamically consistent phase-field model (PFM), which combines a kinetic growth law and mass transport equations with irreversible thermodynamics of interfaces and bulk phases. Each grain in the simulation domain is captured by a phase field with individual orientation given by three Euler angles. The model evolves in discrete time steps using a finite difference algorithm on a regular grid, optimized for large grain assemblies. The underlying processes are highly nonlinear, and for geological samples, boundary conditions as well as many of the physical parameters are not precisely known. One motivation in this study is to validate the adequately parameterized model vs. hydrothermal experiments under defined (p,T,c) conditions. Different from former approaches in vein growth simulation, the PFM is configured using thermodynamic data from established geochemical models. Previously conducted batch flow experiments of hydrothermal quartz growth were analyzed with electron backscatter diffraction (EBSD) and used to calibrate the unknown kinetic anisotropy parameters. In the simulations, we study the sealing of syntaxial veins of 300 microns aperture by epitaxial overgrowth of preexisting grains from the rock surface. Results from 3D simulations conducted in the limit of low Damköhler numbers explain the observed transition regime in competitive crystal growth for blocky-elongate veins. The initial formation of quartz crystal bridges, especially pronounced in the regime of low supersaturation, is observed. The morphological evolution of micro-ensembles of grain neighbourhoods from the rock sample compares well to that of the simulations. To juxtapose larger polycrystal domains, the variation of grain number, texture and porosity as function of scaled distance from the initial wall is calculated. Velocity profiles from solutions of the isothermal incompressible Navier-Stokes equation are used to record permeability evolution and to evaluate deviations from the cubic law. Both, the geometry of the microstructure and the permeability of the flow pathway, are used as upscaling parameters for larger scale (fracture scale) simulations.

Wendler, Frank; Okamoto, Atsushi; Schwarz, Jens-Oliver; Enzmann, Frieder; Blum, Philipp

2014-05-01

394

Development of HIFU Therapy System for Lower Extremity Varicose Veins  

Science.gov (United States)

High-intensity focused ultrasound (HIFU) treatment utilizing microbubbles was investigated in the present study. It is known that microbubbles have the potential to enhance the heating effects of an ultrasound field. In this study, the heat accompanying microbubble oscillation was used to occlude varicose veins. Alteration of veins was observed after ultrasound irradiation. Veins were resected by stripping. In this study, two vein conditions were adopted during HIFU irradiation; non-compressed and compressed. Compressing the vein was expected to improve occlusion by rubbing the altered intima under compressed conditions. The frequency of the ultrasound was 1.7 MHz, the intensity at the focus was 2800 W/cm2, and the irradiation time was 20 s. In this study, the contrast agent Levovist® was chosen as a microbubble source, and the void fraction (ratio of total gas volume to liquid) in the vein was fixed at 10-5. Under non-compressed conditions, changes were observed only at the adventitia of the vein anterior wall. In contrast, under compressed conditions, changes were observed from the intima to the adventitia of both the anterior and posterior walls, and they were partly stuck together. In addition, more experiments with hematoxylin-eosin staining suggested that the changes in the vein were more substantial under the latter conditions. From these results, it was confirmed that the vein was occluded more easily with vein compression.

Ota, Ryuhei; Suzuki, Jun; Yoshinaka, Kiyoshi; Deguchi, Juno; Takagi, Shu; Miyata, Tetsuro; Matsumoto, Yoichiro

2009-04-01

395

Foliar sprays of citric acid and salicylic acid alter the pattern of root acquisition of some minerals in sweet basil (Ocimum basilicum L.)  

Science.gov (United States)

The effect of foliar application of two levels of citric acid (CA; 0 and 7 mM) and two levels of salicylic acid (SA; 0 and 1 mM) combined with two levels of nutrient solution strength (full strength and half strength) on mineral acquisition by sweet basil were investigated. The experiment was conducted in a randomized block design arrangement with three replications. SA alone reduced the plant height and thickened the stem. Plants supplied with a full strength solution had a ticker stem, produced more biomass, and showed higher values of Fv/Fm. Some changes in the uptake pattern of some nutrients, especially boron and sulfur, were noticed. Higher boron concentrations in leaves were in plants sprayed with a combination of 7 mM CA and 1 mM of SA. Applying combination of CA and SA was more effective than using them individually that suggests an effective synergism between them.

Ghazijahani, Noushin; Hadavi, Ebrahim; Jeong, Byoung R.

2014-01-01

396

Computed tomographic evaluation of the portal vein in the hepatomas  

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Computed tomography and pornographic findings of 63 patients with hepatoma, undergone hepatic angiography and superior mesenteric pornography for evaluation of tumor and thrombosis of portal vein and determination of indication of transcatheter arterial embolization for palliative treatment of hepatoma from April, 85 to June, 86 in Hanyang university hospital, were reviewed. The results were as follows: 1. In 36 cases, portal vein thrombosis was detected during photography. Nineteen of 37 cases which revealed localized hepatoma in the right lobe of the liver showed portal vein thrombosis; 9 of 11 cases of the left lobe; 8 of 14 cases which were involved in entire liver revealed thrombosis. One case localized in the caudate lobe showed no evidence of invasion to portal vein. 2. Twenty-four of 34 cases with diffuse infiltrative hepatoma revealed portal vein thrombosis and the incidence of portal vein thrombosis in this type were higher than in the cases of the nodular type. 3. The portal vein thrombosis appeared as filling defects of low density in the lumen of the portal veins in CT and they did not reveal contrast enhancement. 4. CT revealed well the evidence of obstructions in the cases of portal vein thrombosis and the findings were well-corresponded to the findings of the superior mesenteric photography. 5. Five of the cases of the portal vein thrombosis were missed in the CT and the causes were considered as due to partial volume effect of enhanced portal vein with partial occlusion or arterioportal shunts. 6. Six of 13 cases with occlusion of main portal vein showed cavernous transformation and they were noted as multiple small enhanced vascularities around the porta hepatis in the CT. According to the results, we conclude that CT is a useful modality to detect the changes of the portal veins in the patients of the hepatoma.

Lee, Kee Hyung; Lee, Seung Chul; Bae, Man Gil; Seo, Heung Suk; Kim, Soon Yong; Lee, Min Ho; Kee, Choon Suhk; Park, Kyung Nam [Hanyang University College of Medicine, Seoul (Korea, Republic of)

1986-10-15

397

Subclavian Vein Thrombosis Extending into the Internal Jugular Vein: Paget-von Schroetter Syndrome  

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Paget-von Schroetter syndrome refers to spontaneous thrombosis of the subclavian vein and constitutes 0.5-1% of all venous thromboses. It is prevalent among young and healthy adult males who engage in sports. Early diagnosis and treatment is essential to avoid long-term sequelae. Herein, we report a 42-year-old male weightlifter who presented with swelling of the left arm, pain and a feeling of tightness in the anterior chest wall. At Doppler US and MR angiography, subclavian vein thrombosis ...

Ilhan, Enver; Ture, Mehmet; Yilmaz, Cengiz; Arslan, Muhammed

2009-01-01

398

Transposição midiática: da sala de aula convencional para a presencial conectada / La transposition mediatique: de la salle de classe conventionnelle à la salle de classe presentielle connectée / Mediatic transposition: from conventional classroom to face-connected classroom  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese O artigo apresenta o conceito de transposição midiática e, para tal, fundamenta-se nos resultados de uma pesquisa acadêmica que identificou os impactos provocados pela tecnologia da videoconferência pela internet, ou webconferência, nação educativa (modo de ensinar), focando as alterações nos papéis [...] docentes. O estudo de caso etnográfico mostrou de que modo a ação docente foi modificada pela situação educativa na qual alunos e professores interagiram face a face, mediados pela tecnologia, de modo síncrono a distância, caracterizando a educação presencial conectada. A investigação tomou como ponto de partida a teoria da transposição didática dos saberes (Chevallard, 1985), tendo identificado e analisado mudanças na prática docente, especificamente nos papéis docentes, caracterizando o fenômeno da transposição midiática. Abstract in english The focus of this article is to introduce the Mediatic Transposition concept referring to the results of a Brazilian research project that sought to identify impacts of Internet videoconferencing (web conferencing) use in education with an emphasis on the changing role of teachers brought on by this [...] new technology. The ethnographic study identified how the teaching tasks changed when pupils and instructors interacted face to face, mediated by technology, using a synchronous communication tool in a hybrid mode of education. This new educational environment in cyberspace is the face-connected classroom. The research took as its starting point studies related to the Didactic Transposition (Chevallard, 1985) and the research addressed changes in teaching practices that were identified and analyzed, specifically those that impacted on the role of instructors during the transition from conventional to face-connected classrooms characterizing Mediatic Transposition.

Francisco, Garonce; Gilberto Lacerda, Santos.

1003-10-01

399

Transposição midiática: da sala de aula convencional para a presencial conectada / La transposition mediatique: de la salle de classe conventionnelle à la salle de classe presentielle connectée / Mediatic transposition: from conventional classroom to face-connected classroom  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese O artigo apresenta o conceito de transposição midiática e, para tal, fundamenta-se nos resultados de uma pesquisa acadêmica que identificou os impactos provocados pela tecnologia da videoconferência pela internet, ou webconferência, nação educativa (modo de ensinar), focando as alterações nos papéis [...] docentes. O estudo de caso etnográfico mostrou de que modo a ação docente foi modificada pela situação educativa na qual alunos e professores interagiram face a face, mediados pela tecnologia, de modo síncrono a distância, caracterizando a educação presencial conectada. A investigação tomou como ponto de partida a teoria da transposição didática dos saberes (Chevallard, 1985), tendo identificado e analisado mudanças na prática docente, especificamente nos papéis docentes, caracterizando o fenômeno da transposição midiática. Abstract in english The focus of this article is to introduce the Mediatic Transposition concept referring to the results of a Brazilian research project that sought to identify impacts of Internet videoconferencing (web conferencing) use in education with an emphasis on the changing role of teachers brought on by this [...] new technology. The ethnographic study identified how the teaching tasks changed when pupils and instructors interacted face to face, mediated by technology, using a synchronous communication tool in a hybrid mode of education. This new educational environment in cyberspace is the face-connected classroom. The research took as its starting point studies related to the Didactic Transposition (Chevallard, 1985) and the research addressed changes in teaching practices that were identified and analyzed, specifically those that impacted on the role of instructors during the transition from conventional to face-connected classrooms characterizing Mediatic Transposition.

Francisco, Garonce; Gilberto Lacerda, Santos.

400

Medial rotation deformity of the hip in cerebral palsy: Surgical treatment by transposition of gluteal muscles  

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Full Text Available INTRODUCTION Medial rotation deformity of the hip is a problem to patients who are handicapped by cerebral palsy but able to walk, because the knees point inward during gait („kissing patellae" and cause falls and frequent injuries. Knees and ankles are subject to stress and, therefore, they assume compensating positions. Lower legs assume position of valgus and external rotation, whereas feet rotate either inwards or outwards. Secondary deformities make gait more difficult and cause rapid tear of footwear. AIM The purpose of the paper was to retrospectively analyze the effects of transposition of the gluteus medius and minimus muscles, a procedure introduced for the first time in our country in order to correct the deformity. A new method of binding the muscles by wire was described. There had been no previous experience with this method. METHOD This operation was indicated in patients with spastic form of cerebral palsy, who were able to walk, who had difficulties in gait and whose lateral rotation was less than 10° along with the medial rotation of over 70° of the hip on the side of the deformity. Additional prerequisite for the operation was the absence of flexion contracture of more than 15° of either the hip or the knee on the side of deformity, as there is possibility of aggravation of the flexion hip deformity due to transposed gluteal muscles (now in front of the hip joint. Fifteen hips of 10 patients were operated on. Five patients were operated on bilaterally at one time. The average age was 8 (6-12 years. The majority of patients, 8 (80% were aged between 6 and 8. The average follow-up was 5 years (3-8. The assessment of the results was based on the comparison of rotational abilities of both hips before and after the operation (in unilateral and bilateral deformities, as well as on individual complaints before and after the operation. In patients with unilateral deformity, their „healthy" hips were the control hips. The analysis of the femoral neck anteversion before and after operation was performed. RESULTS Average values of medial and lateral rotation of the deformed hips before operation exhibited significant statistical difference when compared to control hips. The difference of average values of rotatory movements of control and operated hips was not statistically significant after operation. The difference of average preoperative values of the femoral neck anteversion in hips with deformity was statistically significant (49.40±4.63° compared to 32.8±3.1G. Postoperative average values of anteversion in operated and control hips were not statistically significant. The difference between average preoperative (49.40±4.63° and postoperative (35.80±7.66° values of the femoral neck anteversion was statistically significant. Excellent results were achieved in 5 (50% patients, i.e. 8 (53.3% hips; good results were achieved in 3 (30% patients, i.e. 5 (33.3% hips; poor result in 2 (20% patients, i.e. 2 (13.3% hips. All 5 patients who had undergone surgery of both hips had symmetric outcome. Three patients had excellent results, while two had good results. Patients with excellent and good results (80% of patients, 86.6% of hips showed neither weakening of the operated hip abduction nor pelvic instability (positive Trendelenburgh hip test. No complications were recorded postoperatively. CONCLUSION Transposition of gluteal muscles can be recommended in patients under 10 years of age as there is still a chance for their femoral neck to change orientation, to decrease the anteversion and thus to achieve long-lasting effect. Fixation of transposed muscles by wire proved to be effective.

?obelji? Goran

2005-01-01