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Sample records for volga upper left

  1. Appearance and chronology of Textile ceramics in the Middle and Upper Volga region: critical comparison of conventional 14C-, AMS- and typological chronologies

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    Lavento Mika T.

    2015-06-01

    Full Text Available The article offers a comparison of three different methods of chronology construction – conventional 14C (radiocarbon dating, AMS (accelerator mass-spectrometry dating and the so called typological chronology – to date the textile ceramics of the Bronze – Early Iron Age in the Northern Coniferous Zone of Europe, from the Upper and Middle Volga and Kama Rivers to the Baltic region and Scandinavia. The Textile Ceramics Culture (also known as “Net”, “Pseudo-textile”, “Spun-and-speckled” is often associated with a Finnish-speaking community from the Bronze – beginning of the Iron Age. The earliest date of the Textile Ceramics sites on the Middle Oka River is presumably considered to be the 18 th century BC. Datings of the reference sites in the Middle Volga region were fixed within the 15 th – 8 th centuries BC. Comparing these data with the AMS chronology available for the materials from Finland and Estonia, the authors conclude that appearance of the Textile Ceramics was almost synchronous in the Volga and the Baltic regions, although chronology of the early tradition of the Textile Ceramics seems to be different in these areas. The results of yet a small number of AMS dates should be treated only as preliminary. However, AMS-dating seems to be the most efficient tool for further refining of the Textile Ceramics chronology over a vast territory, including in the Volga region.

  2. Anomalous Feeding of the Left Upper Lobe.

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    Hazzard, Christopher; Itagaki, Shinobu; Lajam, Fouad; Flores, Raja M

    2016-09-01

    We report the case of a 53-year-old woman who presented with massive hemoptysis. Computed tomographic angiography revealed an anomalous vessel arising from the abdominal aorta, coursing anteriorly and through the diaphragm, and feeding the left upper lobe. At operation the vessel was found to anastomose to the left upper lobe lingula, which contained multiple vascular abnormalities and arteriovenous fistulas. The vessel was ligated, and the affected portion of the left upper lobe was resected. Anomalous systemic arterial supply of an upper lobe is an especially rare form of a Pryce type 1 abnormality. Recognition of these unusual anatomic variants is crucial to successful treatment and avoidance of adverse events.

  3. Hydroecological monitoring in the headwaters of the Volga River

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    Kuzovlev, Viacheslav V.; Zhenikov, Yuri N.; Zhenikov, Kyrill Y.; Shaporenko, Sergey I.; Haun, Stefan; Füreder, Leopold; Schletterer, Martin

    2016-04-01

    Europe's largest river, the Volga (3551 km), has experienced multiple stressors from human activities (i.e. the Volga Basin comprises about 40 % of the Russian population, 45 % of the country's industry and more than 50 % of its agriculture). During the research expedition "Upper Volga 2005" an assessment of hydrological, limnochemical and biological parameters was carried out by scientists from the Russian Federation and from Austria. The extensive sampling in 2005 showed that the free-flowing section of the Volga River, located upstream of Tver, represents conditions which are either reference or least disturbed - thus it can be considered as a refugial system for freshwater biota of the European lowlands. Subsequently three stretches in the headwaters of the Volga River (Rzhev, Staritsa, Tver) were selected for the monitoring programme "REFCOND_VOLGA", which is in operation since 2006. These locations correspond also with the sampling sites of ROSHYDROMET, i.e. at Tver physic-chemical samples are taken monthly and at Rzhev samples are taken in the main hydrological periods. The laboratory ship "ROSHYDROMET 11" conducted monthly cruises between Tver and Kalyazin (Ivankovskoye and Uglichskoye reservoirs on Volga) in the headwaters during the navigation period (May - October). This also includes measurements with ADCP, which further allow the analyses of the spatial distribution of the suspended solids within cross sections. In addition sediment fluxes were derived by using the acoustic backscatter signal strength from the acoustic current Doppler profiler (ADCP). We exemplify at the monitoring sites the spatial distribution of different sediments, i.e. choriotope types, according the longitudinal profile of the river. We show that it is highly influenced by morphodynamics in the different river sections and this corresponds with the zoobenthos fauna accordingly. This interdisciplinary approach, including sediment conditions, limnochemistry, hydrology and

  4. Left common basal pyramid torsion following left upper lobectomy/segmentectomy.

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    Wang, Wei-Li; Cheng, Yen-Po; Cheng, Ching-Yuan; Wang, Bing-Yen

    2015-05-01

    Lobar or segmental lung torsion is a severe complication of lung resection. To the best of our knowledge, common basal pyramid torsion has never been reported. We describe a case of left basal pyramid torsion after left upper lobectomy and superior segmentectomy, which was successfully treated by thoracoscopic surgery.

  5. [Huge cystic tumor in the left upper abdomen].

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    Dornbusch, J; Hasselmann, J

    2012-04-01

    ABTRACT: We report the case of a 71-year-old man with a cystic tumor in the left upper abdomen and a long-standing history of symptoms. After completing clinical tests and imaging studies a laparotomy was performed. The tumor was removed together with the first jejunal loop and bowel reconstruction was completed by hand-sewn anastomosis. Histopathological analysis revealed a gastrointestinal stromal tumor classified as high risk.

  6. Subacute bacterial endocarditis presenting as left upper quadrant abdominal pain

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    Yung-Ta Kao

    2013-09-01

    Full Text Available Infective endocarditis is a microbial infection of the endocardial surface of the heart. Its symptoms and signs are varied, and include fever, heart murmur, peripheral embolism, and heart failure. The diagnosis of subacute bacterial endocarditis (SBE is suggested by a history of an indolent process characterized by fever, fatigue, anorexia, and unexplained weight loss. These patients may have had an invasive procedure, such as dental work, or abused intravenous drugs prior to the diagnosis of SBE. Although uncommon, the patients may present with nonspecific symptoms caused by peripheral embolic events. Herein, we report a 25-year-old male diagnosed with SBE, who presented with the unusual symptom of sudden onset of left upper quadrant abdominal pain for 2 days. His clinical history is also discussed.

  7. The effect of deforestation and land-use changes on CO2 and H2O exchange between land surface and the atmosphere in the Upper Volga area in Russia

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    Olchev, Alexander; Kurbatova, Juliya; Mukhartova, Juliya; Molchanov, Alexander; Konstantinov, Pavel; Levashova, Natalia; Avilov, Vitaliy; Sandlersky, Robert; Belotelov, Nikolay; Novenko, Elena

    2016-04-01

    The main goal of the study to describe the possible impact of deforestation (or/and afforestation) and land-use changes in the Upper Volga area in European Russia on regional fluxes of sensible heat, H2O and CO2 between a land surface and the atmosphere as well as on regional climate conditions. This is experimental and modeling study that integrates intensive field campaigns to derive the spatial and temporal variability of H2O and CO2 fluxes at the local ecosystem scale, analysis and interpretation of remote sensing data, development and application of local scale process-based 2D and 3D turbulent transfer models to quantify atmospheric fluxes, analysis of paleogeographical data to reconstruct vegetation dynamics in past epochs and its interaction with climatic conditions, application of mesoscale models to derive the possible influence of deforestation and land-use changes on regional climate under present and projected future climate conditions. To describe the difference in the H2O and CO2 exchange between anthropogenically changed (e.g. a clear-cut area) and undisturbed forest the eddy covariance measurements was applied. The spatial heterogeneity of soil respiration within the clear-cut area and surrounding forest the chamber method was used. In particular it was shown during the field measurements that the soil CO2 emission from clear-cut plots is significantly exceed CO2 emission rate from control plots within surrounding forest. For all plots it was shown a well manifested seasonal course of soil respiration and quite small amplitude of its diurnal variability. It was revealed a close dependence of soil CO2 emission from temperature and moisture of the upper soil horizon. It was found that the plots with various damage degrees of the upper soil horizon, and non-damaged soil covered with a litter and felling remains are characterized by different respiration rates and different dependences on environmental factors. To assess the influence of clear cuttings

  8. Left and right hand recognition in upper limb amputees.

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    Nico, Daniele; Daprati, Elena; Rigal, François; Parsons, Lawrence; Sirigu, Angela

    2004-01-01

    Previous research suggests a close similarity in brain activity between mental simulation of a movement and its real counterpart. To explore this similarity, we aimed to assess whether imagery is affected by the loss of a limb or of its motor skills. We examined the performance of 16 adult, upper limb amputees (and age-matched controls) in a left/right hand judgement task that implicitly requires motor imagery. The experimental group included subjects who had suffered the amputation of the dominant or the non-dominant limb. Although responding well above chance, amputees as a group were slower and less accurate than controls. Nevertheless, their response pattern was similar to that of controls, namely slower response times and more errors for stimuli depicting hands in unnatural orientations, i.e. postures difficult to reach with a real movement. Interestingly, for all stimuli, amputees' performance was strongly affected by the side of limb loss: subjects who underwent amputation of their preferred limb made more errors and required greater latencies to respond as compared with amputees of the non-dominant limb. In a further analysis we observed that the habit of wearing an aesthetic prosthesis significantly interfered with the ability to judge the corresponding hand. Our data lead to three main conclusions: (i) loss of a single limb per se does not prevent motor imagery but it significantly enhances its difficulty; (ii) these subjects apparently perform the hand recognition task using a strategy in which they initially mentally simulate movements of their dominant limb; (iii) wearing a prosthesis, devoid of any motor function, seems to interfere with motor imagery, consistent with the view that only 'tools' can be incorporated in a dynamic body schema.

  9. Fatal stroke after completion pneumonectomy for torsion of left upper lobe following left lower lobectomy

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    Apostolakis Efstratios

    2006-09-01

    Full Text Available Abstract Background The lobar torsion after lung surgery is a rare complication with an incidence of 0.09 to 0.4 %. It may occur after twisting of the bronchovascular pedicle of the remaining lobe after lobectomy, usually on the right side. The 180-degree rotation of the pedicle produces an acute obstruction of the lobar bronchus (atelectasis and of the lobar vessels as well. Without prompt treatment it progresses to lobar ischemia, pulmonary infarction and finally fatal gangrene. Case Presentation A 62 years old female patient was admitted for surgical treatment of lung cancer. She underwent elective left lower lobectomy for squamous cell carcinoma (pT2 N0. The operation was unremarkable, and the patient was extubated in the operating room. After eight hours the patient established decrease of pO2 and chest x-ray showed atelectasis of the lower lobe. To establish diagnosis, bronchoscopy was performed, demonstrating obstructed left lobar bronchus. The patient was re-intubated, and admitted to the operating room where reopening of the thoracotomy was performed. Lobar torsion was diagnosed, with the diaphragmatic surface of the upper lobe facing in an anterosuperior orientation. A completion pneumonectomy was performed. At the end of the procedure the patient developed a right pupil dilatation, presumably due to a cerebral embolism. A subsequent brain angio-CT scan established the diagnosis. She died at the intensive care unit 26 days later. Conclusion The thoracic surgeon should suspect this rare early postoperative complication after any thoracic operation in every patient with atelectasis of the neighboring lobe. High index of suspicion and prompt diagnosis may prevent catastrophic consequences, such as, infarction or gangrene of the pulmonary lobe. During thoracic operations, especially whenever the lung or lobe hilum is full mobilized, fixation of the remaining lobe may prevent this life threatening complication.

  10. Horseshoe lung associated with left-lung hypoplasia, left pulmonary artery sling and bilateral agenesis of upper lobe bronchi.

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    Oguz, Berna; Alan, Serdar; Ozcelik, Ugur; Haliloglu, Mithat

    2009-09-01

    Horseshoe lung, a rare congenital anomaly, is almost always associated with unilateral (usually right-sided) lung hypoplasia, and, in most cases, in conjunction with the scimitar syndrome. We present an 8-month-old boy with horseshoe lung associated with left-lung hypoplasia, left pulmonary artery sling and bilateral agenesis of the upper lobe bronchi, diagnosed by multidetector CT (MDCT) imaging. The study also revealed an anomalous origin of the left vertebral artery as the last branch of the aortic arch, distal to the left subclavian artery, and an anomalous origin of the left common carotid artery from the brachiocephalic trunk. A hemivertebral anomaly of the seventh cervical vertebra was incidentally detected. MDCT with high-quality multiplanar and three-dimensional reconstructions is a noninvasive and rapid technique for detecting the complex combination of vascular, tracheobronchial and parenchymal anomalies, and any potential bone anomalies, in one imaging study.

  11. Horseshoe lung associated with left-lung hypoplasia, left pulmonary artery sling and bilateral agenesis of upper lobe bronchi

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    Oguz, Berna; Haliloglu, Mithat [Hacettepe University Faculty of Medicine, Department of Radiology, Ankara (Turkey); Alan, Serdar; Ozcelik, Ugur [Hacettepe University Faculty of Medicine, Department of Pediatrics, Ankara (Turkey)

    2009-09-15

    Horseshoe lung, a rare congenital anomaly, is almost always associated with unilateral (usually right-sided) lung hypoplasia, and, in most cases, in conjunction with the scimitar syndrome. We present an 8-month-old boy with horseshoe lung associated with left-lung hypoplasia, left pulmonary artery sling and bilateral agenesis of the upper lobe bronchi, diagnosed by multidetector CT (MDCT) imaging. The study also revealed an anomalous origin of the left vertebral artery as the last branch of the aortic arch, distal to the left subclavian artery, and an anomalous origin of the left common carotid artery from the brachiocephalic trunk. A hemivertebral anomaly of the seventh cervical vertebra was incidentally detected. MDCT with high-quality multiplanar and three-dimensional reconstructions is a noninvasive and rapid technique for detecting the complex combination of vascular, tracheobronchial and parenchymal anomalies, and any potential bone anomalies, in one imaging study. (orig.)

  12. CT findings of a displaced left upper division bronchus in adults: Its importance for performing safe left pulmonary surgery

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    Oshiro, Yasuji, E-mail: oshiro4211@yahoo.co.jp [Department of Radiology, National Hospital Organization Okinawa Hospital, 20-14 Ganeko 3-chome, Ginowan city, Okinawa 901-2214 (Japan); Murayama, Sadayuki [Department of Radiology, University of the Ryukus School of Medicine, 207 Uehara, Nishihara-cho, Okinawa 903-0215 (Japan); Ohta, Morio [Department of Surgery, Nakagami Hospital, 6-25-5 Chibana, Okinawa-city, Okinawa 904-2195 (Japan); Teruya, Takao [Second Department of Surgery, University of the Ryukus School of Medicine, 207 Uehara, Nishihara-cho, Okinawa 903-0215 (Japan)

    2013-08-15

    Purpose: The aim of this study was to describe the CT findings of a displaced left upper division bronchus (DLUDB) in adults. Materials and methods: Ten patients with DLUDB were identified. The following CT features were assessed: origin of the DLUDB; distance between the origin of the DLUDB and the origin of the left upper lobe (LUL) bronchus; height of the origin of the DLUDB against the left pulmonary artery (LPA); difference of the main bronchial length; ventilated segment; course of the left pulmonary artery against the DLUDB; and presence of an accessory fissure or other anomalies. Results: DLUDB arose from the posterolateral or lateral aspect of the left main bronchus immediately proximal to the origin of the LUL bronchus. It tended to course along the posterior wall of the LPA and to ventilate the apicoposterior segment with or without the anterior segment. The LPA passed between the displaced bronchus and the lingular bronchus. The origin of the DLUDB was located lower than the inferior wall of the proximal LPA in 6 patients. The accessory fissure between the associated segment and remaining part of the LUL and right tracheal bronchus coexisted in 7 and 3 patients respectively. Conclusion: DLUDB has characteristic findings on CT. Radiologists should be aware of this entity and inform the surgeon as it can prevent serious complications in a patient who may undergo lobectomy of the left lung.

  13. Sarmatian Monuments in the Forest-Steppe Interfluve Area Between the Don and the Volga Rivers (Zoning Experience

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    Berestnev Roman Sergeevich

    2015-06-01

    Full Text Available The article is devoted to the zoning of Sarmatian antiquities in the forest-steppe interfluve area between the Don and the Volga rivers. On the basis of the analysis, the authors allocate four areas of burial monuments in the Northern periphery of the Asian Sarmatia (the river in Voronezh, the Middle Don, the Upper Don, the area between the Khoper and the Volga rivers. The stages of the forest-steppe area development by the Sarmatians in the Don River, the Khoper river and the right bank of the Volga river were also studied. The first stage is characterized by the general description of Sarmatian monuments located in the forest-steppe area between the Volga and the Khoper. The authors carry out the detailed review of the distinctive features of the funeral rites and some peculiar details: stratigraphy, structures beneath barrows, forms of burial pits, postures of the deceased, orientation, use of fire, imported and domestic utensils, weapons and ornaments. Archaeological materials are compared with the data of ancient sources (Claudius Ptolemy. The result of the study consists in the comparative analysis of the binding of specific ethnic groups in the allocated areas. The authors attribute the Sarmatians on the Voronezh river with the Gippofagi ancient authors; the Aseyes and the Sakata – with the area of monuments in the forest between the Volga and the Khoper.

  14. Precontrol of the pulmonary artery during thoracoscopic left upper lobectomy and systemic lymph node dissection

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    Ma, Lin; Mei, Jiandong; Liu, Chengwu

    2016-01-01

    The main reasons of emergent conversion during thoracoscopic lobectomy included tumor invasion, hilar lymph node (LN) metastasis, and lymphoid tuberculosis. We presented a video which depicted a three-portal thoracoscopic left upper lobectomy with dissection of large LNs. Severe adhesions between a large LN and the first branch of the left pulmonary artery (PA) were found during surgery. For safety reasons, the left main pulmonary artery (LMPA) was clamped with an endoscopic bulldog clamp prior to lymph nodal dissection. The strategy of precontrolling the LMPA during thoracoscopic lobectomy is useful for these patients with complicated hilum, and may assure the safety of the operation. PMID:27162690

  15. Renal infarction in a patient with pulmonary vein thrombosis after left upper lobectomy.

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    Manabe, Shun; Oshima, Yasuko; Nakano, Marie; Fujii, Teruhiro; Maehara, Takamitsu; Nitta, Kosaku; Hatano, Michiyasu

    2014-05-01

    A 43-year-old male experienced renal infarction (RI) following left upper lobectomy for lung cancer. The patient complained of acute-onset severe left flank pain on the 14th postoperative day. A contrast-enhanced computed tomography (CT) of the abdomen revealed RI by a large wedge-shaped defect in the left kidney. A chest CT scan located the thrombus in the stump (a blind-ended vessel) of the left superior pulmonary vein. Therefore, thromboembolic RI caused by pulmonary vein thrombosis was suspected. Anticoagulation therapy was initiated with heparin and warfarin to treat RI and to prevent further embolic episodes. Two months later, pulmonary vein thrombosis had resolved without the appearance of additional peripheral infarction. This case emphasizes the need to consider thrombus in the stump of the pulmonary vein as a cause of RI.

  16. Domanik deposits in Volga-Ural basin: Structure and formation conditions

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    Zavialova, Anna; Chupahina, Vitaliya; Stupakova, Antonina; Suslova, Anna

    2017-04-01

    The high-carbon Domanic deposits within a Mukhano-Erohovsky trough in Volga-Ural Basin was analyzed from materials of the well cores in the region. Detailed macroscopic description of the cores was provided based on samples and thin sections. In this way, the composition, structure, conditions of sedimentation of high-carbon formation, reservoir properties of rocks, and their distributions in the sections were identified. It was concluded that the Volga-Ural basin is a pre-Ural foreland basin where Domanic siliceous carbonate shale formation formed during the peak of Late Devonian transgression. Domanic rich organic formation of Upper Devonian - Lower Carboniferous age is represented by clay-siliceous-carbonate and clean calcareous and siliceous rocks. These rocks formed in a calm sea basin with environments of shallow shelf, intrashelf depressions and their slopes. The most organic-rich deposits were accumulated in the central parts of the depression uncompensated by sediments.

  17. Lower-right and upper-left biases within upper and lower visual fields in a circular array task.

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    Szelest, Izabela; Elias, Lorin J

    2014-12-01

    Visuospatial performance varies along the horizontal and vertical dimensions, resulting in behavioral biases such as pseudoneglect. The interaction between the horizontal and vertical attentional biases was investigated using a novel circular array task capable of conveying relative brightness information across vertical and horizontal dimensions simultaneously. In a novel circular array task comprised of six discs, the grayscale gradient was disrupted by switching two grayscale values within the array. Leftward biases were observed in the lower visual fields and rightward biases in the upper visual fields. More importantly, the magnitude of bias within the upper/lower horizontal dimension altered depending on the relative position of the stimuli along horizontal and vertical axes within each dimension. Manipulating the upper-most and leftward discs yield stronger biases than manipulating rightward discs. Furthermore, stronger biases were observed during bottom and rightward disc manipulation. The upper-left and lower-right biases within the horizontal dimension indicate that the interactions between the horizontal and vertical biases may not rely simply on the dichotomy within the horizontal and vertical dimensions, but also on the relative spatial distribution of stimuli within these dimensions.

  18. Case report 373: Diametaphyseal chrondroblastoma of the upper portion of the left femur

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    Sotelo-Avila, C.; Sundaram, M.; Graviss, E.R.; Kyriakos, M.; Tayob, A.A.

    1986-06-01

    In summary, a case has been presented of a chondroblastoma of the diametaphysis of the upper end of the left femur in an 11-year-old girl. Despite its atypical location, the tumor proved to be a characteristic chondroblastoma on microscopic examination. The literature was reviewed comprehensively and it was noted that 12 examples of chondroblastoma arising outside an epiphysis (or apophysis) were noted. (orig./SHA).

  19. Transcatheter embolization of extensive left gastric artery collaterals presenting with massive upper gastrointestinal bleed.

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    Saddekni, Souheil; Abdel-Aal, Ahmed Kamel; Oser, Rachel F; Underwood, Edgar; Bag, Asim

    2012-08-01

    We report a case of extensive left gastric artery collaterals that were formed in the region of gastric fundus due to splenic artery occlusion and resulted in massive hematemesis. These collaterals were thought to be portosystemic collaterals related to portal hypertension during upper endoscopy study and single-phase venous computed tomography studies. The collaterals were treated by transcatheter endovascular coil embolization. Our case highlights the importance of recognizing and differentiating left gastric artery collaterals from gastric venous varices as a cause of hematemesis since the treatment approach for each condition is totally different. It also introduces the feasibility of percutaneous left gastric artery embolization as a treatment for this condition, without the need for surgical splenectomy and partial gastrectomy which have a higher mortality and morbidity.

  20. Construction and Operation of Railway Bridges and Ferries in the Lower Volga Streamflow (End of 19th – First Half of 20th Century

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    OPALEV M.N.

    2014-06-01

    Full Text Available The article deals with the history of operation of Russia’s first railway ferry and the process of bridge construction across the lower Volga streamflows at Ryazan-Ural (now Volga railway line in Saratov, Stalingrad (Volgograd and Astrakhan. River railway ferries “Saratovskaya pereprava” and “Saratovsky ledokol” were built in 1894 in England and water crafts “Vtoraya pereprava” (1909 and “Stalin” (1926 were floated out in Volga in Nizhny Novgorod, from the Sormov plant. As a rule, the organization of transportations by means of steam locomotives and waggons through Volga during the first half of the 20th century preceded the construction of capital metal railway bridges, such as Astrakhan (1909 and Saratov (1935, and also a combined railway-automobile bridge through the Volga (Stalingrad Hydro-Electric Power Station (1961. The article is devoted not only to the technical features of ferries, bridges, but their efficient use in peace time and war time. So, the carrying capacity of the Saratov railway ferry increased in more than three times from 1907 to 1916. The Ryazan-Ural railway ferries were actively used by new Bolshevist regime. After the railroad construction on the left bank of Volga in autumn and winter of 1941, railway ferries “Stalin” and “Saratovskaya pereprava” were used for the carriage of military trains and population evacuation from the western bank of Volga. The author describes one of the most heroic and tragic facts in the history of Stalingrad battle using the example of the special operation railway ferry flooding and its consequent reconstruction.

  1. Athena konverentsi- ja kultuurikeskus ning restoran Volga = Athena Conference and Cultural Centre and Volga Restaurant

    Index Scriptorium Estoniae

    2008-01-01

    Athena konverentsi- ja kultuurikeskuse ning restorani Volga sisekujundusest (Tartus Küütri 1 asuva Athena kinohoone renoveerimine). Sisearhitekt: Aivar Roosaar. Restaureeriti ka muinsuskaitse alla kuuluvad Ferdi Sannamehe neoklassitsistlikud stukkreljeefid kinosaali seintel ja Peet Areni maalid restorani vitraažlaega keldrisaali nishshides. A. Roosaarest, tema tähtsamad tööd. I-III korruse, vahekorruse ja pööningu plaan, värv. välisvaade, 15 sisevaadet, foto A. Roosaarest

  2. Athena konverentsi- ja kultuurikeskus ning restoran Volga = Athena Conference and Cultural Centre and Volga Restaurant

    Index Scriptorium Estoniae

    2008-01-01

    Athena konverentsi- ja kultuurikeskuse ning restorani Volga sisekujundusest (Tartus Küütri 1 asuva Athena kinohoone renoveerimine). Sisearhitekt: Aivar Roosaar. Restaureeriti ka muinsuskaitse alla kuuluvad Ferdi Sannamehe neoklassitsistlikud stukkreljeefid kinosaali seintel ja Peet Areni maalid restorani vitraažlaega keldrisaali nishshides. A. Roosaarest, tema tähtsamad tööd. I-III korruse, vahekorruse ja pööningu plaan, värv. välisvaade, 15 sisevaadet, foto A. Roosaarest

  3. A Low Latency Electrocardiographic QRS Activity Recovery Technique for Use on the Upper Left Arm

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    William D. Lynn

    2014-07-01

    Full Text Available Empirical mode decomposition is used as a low latency method of recovering the cardiac ventricular activity QRS biopotential signals recorded from the upper arm. The recovery technique is tested and compared with the industry accepted technique of signal averaging using a database of “normal” rhythm traces from bipolar ECG leads along the left arm, recorded from patient volunteers at a cardiology day procedure clinic. The same partial recomposition technique is applied to recordings taken using an innovative dry electrode technology supplied by Plessey Semiconductors. In each case, signal to noise ratio (SNR is used as a metric for comparison.

  4. Intra-aneurysmal glue embolisation of a giant pulmonary artery pseudoaneurysm after left upper lobe lobectomy: Case report

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    Garg, Ashwin; Chandrasekaran, Kiruthika; Jadhav, Sidram; Chandok, Gurbaag; Ringe, Apama; Sankhe, Ashwini [Dept. of Radiology, Lokmanya Tilak Medical College and Municipal General Hospital, Sion (India)

    2013-06-15

    We report a case of pseudoaneurysm of the anterior ascending branch of the left pulmonary artery, following a left upper lobectomy for pulmonary aspergillosis, for which we have done an endovascular treatment. This is the first case where complete pseudoaneurysm occlusion was accomplished after a transcatheter intra-aneurysmal N-butyl 2-cyanoacrylate (glue) injection.

  5. Hypertensive Crisis and Left Ventricular Thrombi after an Upper Respiratory Infection during the Long-term Use of Oral Contraceptives.

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    Suzuki, Natsuko; Suzuki, Keisuke; Mizuno, Tomofumi; Kato, Yukari; Suga, Norihiro; Yoshino, Masabumi; Miura, Naoto; Banno, Shogo; Imai, Hirokazu

    2016-01-01

    A 34-year-old woman who had been using oral contraceptives for 10 years developed hypertensive crisis with papilloedema after an upper respiratory infection. Laboratory data showed hyperreninemic hyperaldosteronism and elevated levels of fibrinogen, fibrin, and fibrinogen degradation products. Echocardiography demonstrated two masses (18 mm) in the left ventricle. On the fourth hospital day, cerebral infarction, renal infarction, and upper mesenteric artery occlusion suddenly occurred despite the blood pressure being well-controlled using anti-hypertensive drugs. Echocardiography revealed the disappearance of the left ventricular masses, which suggested left ventricular thrombi. Cessation of the contraceptives and administration of heparin, warfarin, and anti-platelets drugs improved her general condition.

  6. Balance of heavy metals in the Volga River delta

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    Kur'yakova, A. N.

    2011-08-01

    The results of many years of geochemical research of aquatic landscapes are presented. Data on the average annual and seasonal concentrations of heavy metals in water and suspended sediments are given. Factors of migration and accumulation of elements in aquatic landscapes are discussed. Masses of heavy metals annually incoming and accumulated in the Volga River delta were calculated.

  7. ANKYLOSING SPONDYLITIS IN THE VOLGA BULGARIA

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    D. I. Abdulganieva

    2015-01-01

    Full Text Available There is much evidence that ankylosing spondylitis (AS is a disease that is also much older than early human civilizations and man as a whole. Until now, the Russia's earliest (14th c ntury archaeological finding of such a patient remains a Volga Bulgaria inhabitant suffering with AS during his life. In the Republic of Tatarstan, at the site of an ancient Bulgar settlement appearing in the early ninth century, archaeologists have discovered an unusual grave: the deceased sitting with his back against the western wall of a tomb pitand having a bronze crosslet under his fingers. According to a historical source, it was the way of burying Christian hierarchs as pastors sitting on the altar and anticipating the great assize during which the destinies of human souls should be ruled. Anthropological analysis showed that the bones belonged to a 35–45-year-old man who was 158–163 cm tall. During the examination of the remains,attention was called to the following features of the spinal structure: ankylosis of the inferior cervical and superior thoracic vertebrae (СV–ThI and inferior thoracic and lumbar spine (ThIV–LII predominantly due to ossification of the anterior longitudinal ligament. Facet vertebral joints and costotransverse joints were also ankylosed at the same levels. The man's neck was fixed in a bent-over position with the head down, the chin touching the breast bone – the socalled soliciting posture. By and large, the vertebral changes are characteristic of late (X-ray stage III spondylitis. Spinal and pelvic photos and X-films are given for demonstration. The studies conducted by historical scientists and forensic medical experts suggest that the found remains are most likely to belong to Christian Theodore nicknamed Jerusaleman, also further known as Holy Theodore philosopher Kamsky (Bulgarian, who was mentioned in the Nikon chronicle in 1323.

  8. Uniportal video-assisted thoracic surgery for left upper lobe: single-direction lobectomy with systematic lymphadenectomy.

    Science.gov (United States)

    Feng, Mingxiang; Lin, Miao; Shen, Yaxin; Wang, Hao

    2016-08-01

    A 62-year-old female was admitted to our hospital after computed tomography (CT) revealed a 2.5 cm × 2.1 cm mass in the left upper lobe. PET/CT scan diagnosed as malignant lesion with no signs of metastasis. Under general anesthesia, the patient was placed in right lateral decubitus position. A 4cm incision was made in the 4th intercostal space with plastic protector. The camera was placed in the upper part of the incision and the instruments were inserted below the camera. Left upper lobectomy along with systematic lymphadenectomy was performed. Total surgical time was 135 min and estimated blood loss was 70 mL. The chest tube was removed on the 2nd postoperative day and the patient was discharged on the 3rd postoperative day with no complication. This uniportal VATS single-direction lobectomy for the left upper lobe is feasible and amplifies the concept of thoracotomy-like minimally invasive surgery.

  9. The ISOLDE experimental hall, wth the isotope separator in the upper left corner.

    CERN Multimedia

    CERN PhotoLab

    1969-01-01

    Beam tubes branch out from a switchyard, which by electrostatic deflectors direct beams of short-lived isotopes to various spectroscopic equipment. From left to right, Rudi Stoeckli at the separator control panel, Gilbert Droz and Henri Bersinger.

  10. Nonsustained Repetitive Upper Septal Idiopathic Fascicular Left Ventricular Tachycardia: Rare Type of VT

    Directory of Open Access Journals (Sweden)

    Gokhan Aksan

    2016-05-01

    Full Text Available Upper septal fascicular ventricular tachycardia is a very rare form of idiopathic fascicular ventricular tachycardia. Upper septal fascicular tachycardia uses the posterior fascicle as the anterograde limb and the septal fascicle as the retrograde limb. When evaluating the electrocardiography for this form of tachycardia, the presence of narrow QRS morphology and normal axis may be misinterpreted as supraventricular tachycardia. Here, we report a very rare subtype of fascicular tachycardia that originates more proximally in the His-Purkinje system at the base of the heart.

  11. [A case of left posterior inferior temporal infarction with right homonymous upper quadrantanopsia and alexia with agraphia for Kanji].

    Science.gov (United States)

    Ichikawa, Yoshikazu; Takanashi, Taiji; Mihara, Etsuko; Shoji, Takuro; Kinoshita, Kaori; Shimizu, Yasutaka

    2011-06-01

    Alexia with agraphia usually represents damage in angular gyrus. We report an unusual case of alexia with agraphia caused by a posterior inferior temporal lesion. A 82-year-old, right-handed man was admitted because of reading disorder. Visual acuity was 0.7 OD and 0.7 OS. Goldmann perimetry revealed right homonymous upper quadrantanopsia. Standard Language Test of Aphasia revealed mild anomia and severe alexia with agraphia for kanji. Magnetic resonance imaging demonstrated left temporal and posterior infarction in the posterior cerebral artery region. Single photon emission computed tomography revealed decreased blood flow in the left inferior temporal, parahippocampal, fusiform, lingual and inferior occipital gyri. There were no significant lesions nor any decreased of blood flow in the angular gyrus. It is suggested that reading and writing of ideograms such as Kanji is related not only to the angular gyrus but also to the posterior inferior temporal lobe and medial posterior lobe of the visual cortex.

  12. Microprocessor supervised stability control system for the united power system of Middle Volga in fault conditions

    Energy Technology Data Exchange (ETDEWEB)

    Berdnikov, V.I.; Birgel, E.R.; Kovalev, V.D.; Kuznestov, A.N.

    1994-12-31

    The development of the 500 kV UPS of Middle Volga, the complication of its configuration and operating conditions particularly in connection with concentration of the generating power at Balakovo NPS have aggravated the problem of stability of the Middle Volga UPS when high power is transmitted along the 500 kV transient system. In this case the necessity for improving control actions` dosage accuracy has also appeared. This work discusses solution to the above mentioned issue. (author) 3 figs.

  13. Geology of the Volga-Ural petroleum province and detailed description of the Ramashkino and Arlan oil fields

    Science.gov (United States)

    Peterson, James A.; Clarke, James W.

    1983-01-01

    The Volga-Ural petroleum province is in general coincident with the Volga-Ural regional high, a broad upwarp of the east-central part of the Russian (East European) platform. The central part of the province is occupied by the Tatar arch, which contains the major share of the oil fields of the province. The Perm-Bashkir arch forms the northeastern part of the regional high, and the Zhigulevsko-Orenburg arch makes up the southern part. These arches are separated from one another by elongate downwarps. The platform cover overlies an Archean crystalline basement and consists of seven main sedimentation cycles as follows: 1) Riphean (lower Bavly) continental sandstone, shale, and conglomerate beds from 500 to 5,000 m thick deposited in aulacogens. 2) Vendian (upper Bavly) continental and marine shale and sandstone up to 3,000 m thick. 3) Middle Devonian-Tournaisian transgressive deposits, which are sandstone, siltstone, and shale in the lower part and carbonates with abundant reefs in the upper; thickness is 300-1,000 m. In the upper carbonate part is the Kamsko-Kinel trough system, which consists of narrow interconnected deep-water troughs. 4) The Visean-Namurian-Bashkirian cycle, which began with deposition of Visean clastics that draped over reefs of the previous cycle and filled in an erosional relief that had formed in some places on the sediments of the previous cycle. The Visean clastics are overlain by marine carbonates. Thickness of the cycle is 50-800 m. 5) Early Moscovian-Early Permian terrigenous clastic deposits and marine carbonate beds 1,000-3,000 m thick. 6) The late Early Permian-Late Permian cycle, which reflects maximum growth of the Ural Mountains and associated Ural foredeep. Evaporites were first deposited, then marine limestones and dolomites, which intertongue eastward with clastic sediments from the Ural Mountains. 7) Continental redbeds of Triassic age and mixed continental and marine elastic beds of Jurassic and Cretaceous age, which were

  14. Maastrichtian sedimentation and palaeoenvironments of the Saratov Volga region

    Science.gov (United States)

    Iakovishina, Elena; Blinova, Irina; Kopaevich, Ludmila; Vishnevskaya, Valentina; Bordunov, Sergey

    2016-04-01

    The Saratov Volga region was a shallow-marine epicontinental basin North-Eastern shelf zone of the Tethys Ocean in the Maastrichtian. The basis for the modeling conditions of sedimentation was the detection mineral composition of rocks, as well as the contents of various chemical elements in rocks in three reference sections: Lower Bannovka, quarries "Bolshevik" and "Kommunar". Rocks of quarries "Bolshevik" and "Kommunar" characterized by quartz-calcite mineral association. The main rock-forming mineral is calcite, small amounts in rocks contain quartz. Other mineral composition characterized section Lower Bannovka. At the base of the section in the rock marked the presence of the opal. The source of silica are radiolarians. Favorable conditions for the existence of which is cold deep water enriched with SiO2. Above the section marked authigenic glauconite, which are confined to zones of skip in sedimentation.Further up begins to dominate the accumulation of calcite with rich bentic foraminifera. Clay minerals in rocks of the section Lower Bannovka presented montmorillonite and illite. The relationship of chemical elements and their alkali modules allow to detail the conditions of sedimentation. The ratio of Fe/Mn in them varies from 44 to 5729. Higher values are characteristic of glauconite sandstones. Up the section marked decrease in the Ti/Zr, indicating that the increase in the distance from the source area to the place of deposition. The similarity values of the ratio Ti/Zr samples indicates a community source area. Sedimentation Model revealed the impact of the PreUral strait connecting Tethys and Paleoarktic. Through the Strait of deep cold water saturated with SiO2, penetrated into the of the Saratov Volga region, were accumulated clay. The closing of the PreUral Strait changed the conditions of sedimentation, the associated fall in sea levels due to global cooling reflected in the crisis of radiolarians, increase in the number of glauconite. Subsequent

  15. V.F. Gening and issues on the archaeology of Volga Bulgaria

    Directory of Open Access Journals (Sweden)

    Rudenko Konstantin A.

    2014-03-01

    Full Text Available V.F. Gening’s contribution to the study of the Volga Bulgaria and his views concerning the history and archaeology of this state formation are considered in the article. His sphere of interest first of all included the links between the Volga Bulgaria population and the tribes belonging to preceding cultures, such as Pyanoborye and Imenkovo ones. V.F. Gening investigated the Bolshie Tarkhany, Turaevo and Rozdestveno burial grounds dated by the 8-9th, 5th and 6-7th centuries A.D., and the materials collected modified the notion of the time and character of the Bulgars arrival in the Volga area. He reconsidered the chronology and interpretation of the archaeological monuments, which referred to the epoch preceding the Bulgars appearance on the Volga, and proposed a hypothesis of the Volga Bulgars as a Turkic-Ugrian ethnos. V.F. Gening created a periodization of the Bolgars history in Eastern Europe within the time span between 1st-3rd centuries AD and the early 13th century AD

  16. Geoinformation mapping of soil erosion in the Middle Volga region

    Science.gov (United States)

    Yermolaev, O. P.

    2017-01-01

    The results of a medium-scale geoinformation mapping of soil erosion on an area of about 150000 km2 in the Middle Volga region are analyzed using the catchment-based approach. A quantitative index of the development of soil erosion on the agricultural lands is suggested. It reflects the intensity of soil erosion on slopes within the river catchments. A computer-based vector map of the boundaries of 3331 elementary catchments has been developed. It represents the territorial units for the analysis of soil erosion. Archive materials from the former institutes for land survey have been used to compile a series of the maps of soil erosion in river catchments on a scale of 1: 200000. The zoning of erosional processes has been performed, and the natural and anthropogenic levels of soil erosion in different basins have been estimated. The analysis of these materials shows that the topography and agricultural activity of humans are the major factors controlling the development of erosion. The maximum development of soil erosion in the studied region is typical of the subzone of broadleaved forests.

  17. Clinical, epidemiological and social characteristics of long-lived persons of the Volga region industrial centre

    Directory of Open Access Journals (Sweden)

    Malinova L.I.

    2011-09-01

    Full Text Available Aim: In spite of recent achievements in public health, average lifetime in the Volga region as in whole Russia is rather short. Issues of longevity in the region produce scientific interest by clinical, epidemiological and social characteristics of long-lived persons. Material and methods: In total 167 long-lived persons were examined. Medical, social, psychic, emotional and epidemiological characteristics were assessed. Results: The typical long-lived person of the Volga region was brought out. The high quality of life was revealed. The negative influence of smoking and alcoholism on the longevity was shown. Most of the patients needed communication. Lack of complaints was revealed, patients mentioned only the general weakness. Conclusion: The study has explained new social and demographic features of the Volga region long-livers

  18. [Abundance of Trans-Volga population of the great bustard (Otis tarda L.)].

    Science.gov (United States)

    Oparin, M L; Kondratenkov, I A; Oparina, O S

    2003-01-01

    We studied the abundance, spatial structure, and democratic parameters of the Trans-Volga population of great bustard as well as this species connection to the habitats during premigratory movements. The data were obtained by monitoring a test area of 1,200,000 hectares in 1998-2000. Time-related changes in the structure of great bustard habitats in Saratov Trans-Volga Region during the 20th century are described and the mechanisms underlying the changes in this species connection to the habitats under the influence of anthropogenic factors are proposed.

  19. CURRENT STATE OF WATER BIORESOURCES OF THE VOLGA AND CASPIAN SEA BASIN

    Directory of Open Access Journals (Sweden)

    L. M. Vasileva

    2012-01-01

    Full Text Available The article considers the issues of current degraded state of aquatic biological resources of the Volga-Caspian Sea basin and provides specific data on commercial stocks of fish. The main reasons for decrease in natural stocks of ichthyofauna are regulation and pollution of the spawning rivers, adverse hydrological conditions, injudicious hunting, poaching pressure. To improve the state of natural stocks of fish it is necessary to increase their reproduction and implement measures to restore and rational exploitation of aquatic bioresources of the Volga- Caspian Sea basin.

  20. [Enterobacteria isolated from commercial fishes from the Volga-Caspian basin].

    Science.gov (United States)

    Lartseva, L V; Rogatkina, I Iu; Bormotova, S V

    1996-01-01

    Enteric bacteria, such as Proteus, Citrobacter [correction of Cytobacter], and Providencia, were found to be prevalent particularly in the gills and intestines of marketable fishes of the Volga and Caspian Seas. Half of all the enteric bacteria was detected in the fish kidneys, spleen, and liver. This shows it necessary to standardize different types of fish raw materials.

  1. COMMODITY TABLES FOR ESTIMATION OF ARTIFICIAL ORIGIN OAK FORESTS IN THE LOWER VOLGA REGION

    Directory of Open Access Journals (Sweden)

    Chernykh V. L.

    2014-01-01

    Full Text Available The article proposes a system of regression equations to estimate the parameters of the normal probability distribution of the number of trunk diameters in stands of oak plantations of Lower Volga. Commodity tables for estimation of forest stands are developed

  2. On the Chronological Aspect of Productive Economy Origin in the Lower Volga Region

    Directory of Open Access Journals (Sweden)

    Vybornov Aleksandr A.

    2016-09-01

    Full Text Available The Lower Volga region territory plays a large part in studying the origin of producing economy. It is particularly important to determine the time of this process commencement. The researchers assumed the coexistence of the late Neolithic and Early Eneolithic monuments in this area. On that basis they highlighted the Neo-Eneolithic period. The researchers dated it to the middle of the 5 millennium BC. They associated this period and the emergence of producing economy at the territory under discussion. The weak point of this hypothesis was a small number of radiocarbon dates on this issue. Obtained after 2007, the radiocarbon dates on the Neolithic and Eneolithic monuments in the Lower Volga region demonstrate a 500-year chronological gap between them. That is why the hypothesis of the Neo-Eneolithic period is not confirmed. At the same time there is a reason to believe that the Late Neolithic and the Caspian Sea region culture coexisted during 5800-5500 BC. However, the referring of the Caspian Sea region culture to the Eneolithic suffers from the lack of evidence that its carriers were familiar with metal. There is also no evidence that they had cattle breeding. The situation changed after studying the Oroshaemoye I archaeological site in the Lower Volga region in 2014-2015. Cultural layer with materials from only the Caspian Sea region culture was found there. This increases the significance of the monument. The bones of domestic sheep and goats were found in this cultural layer. This is the first significant evidence of producing economy existing among the population of the Lower Volga region. AMS radiocarbon dates 4800 and 4700 BC were obtained from domestic sheep bones from this site. Thus, it is possible to make a reasoned conclusion that producing economy had being formed in the Lower Volga region among the carriers of the Caspian Sea region culture. This process can be reliably dated to the beginning of the 5 millennium BC.

  3. The Rationale for Comparative Effectiveness of Tourist Potential Realization (Case Study of the Volga Region

    Directory of Open Access Journals (Sweden)

    Anna Nikolaevna Polukhina

    2016-11-01

    Full Text Available The article presents the analysis of long-term tourism development programs of the Volga Region. Great attention is given to the sector’s financing measures set out in development programs. Domestic and foreign tourist potential assessment methods are analyzed. Tourist potential dynamics of the Volga Region is studied based on expert opinion. Using econometric approach the authors study the correlation between tourism investments and incomes of the Volga Region for the past six years – from 2009 to 2014. The analysis was carried out using statistics provided by the Russian Tourism Association and the Federal State Statistics Service of the Russian Federation by category of profitability from paid tourist services and from hospitality and catering services. The conducted analysis helped construct the figures showing the differentiation of the Volga regions by tourism investment efficiency and tourist potential realization. It is shown that tourist potential of the territories and its realization are highly differentiated. The sub-regions of the Volga Region are divided into groups according to the effectiveness of potential realization. The effectiveness of implementation of natural recreational and historical and cultural potential is higher in the sub-regions where places of tourist accommodation and entertainment are developed enough, effective mechanisms for programs implementation control are formed and the indicators of expected effectiveness of measures implementation are elaborated. The study has revealed the need for the development of common indicators of expected final results of tourism development programs. The use of a unified system of standardized indicators should become the principle of monitoring the implementation of regional tourism development programs. Data obtained by the research will be useful for the improvement of the existing regional tourism development programs

  4. Left upper lobectomy and systematic lymph nodes dissection in enlarged pulmonary hilar lymph nodes in primary lung cancer patient by uniportal video-assisted thoracic surgery.

    Science.gov (United States)

    Fan, Jun-Qiang; Yao, Jie; Chang, Zhi-Bo; Wang, Qi

    2016-08-01

    Uniportal video-assisted thoracic surgery (VATS) anatomical pulmonary resection, with only one small incision for surgery instruments and camera insertion, requires higher operative skills, especially in the cases of the enlarged pulmonary hilar lymph nodes. With improved technology and increased experiences in VATS lobectomy, uniportal VATS lobectomy has been applied in major medical centers recently. A 67-year-old male patient with left upper peripheral lung cancer and enlarged hilar lymph nodes underwent unipotal VATS lobectomy and systemic mediastinal lymph node dissection. The patient recovered uneventfully.

  5. Basic trends for geological exploration in the Volga-Ural oil and gas province in 1979-1980

    Energy Technology Data Exchange (ETDEWEB)

    Vaynbaum, F.Ya.; Kaz' min, L.L.; Khachatryan, R.O.; Konovalenko, F.F.; Polyakov, V.A.; Surovikov, Ye.Ya.; Tkachenko, I.S.

    1979-01-01

    Features are examined of the condition of geological exploration for oil and gas and potential hydrocarbon resources for oil extracting regions of the Volga-Ural oil and gas province. Basic trends are isolated for geological-geophysical and prospecting-exploration work which guarantee an increase in hydrocarbon reserves in the planned period and which create reserves for the subsequent period. The outlook for further increase in effectiveness of geological exploration in the Volga-Ural oil and gas province were indicated.

  6. Exogenous processes study in the coastal zone of the large reservoirs in the archaeological monuments placement (Volga-Kama region)

    Science.gov (United States)

    Gaynullin, Iskander; Usmanov, Bulat

    2014-05-01

    The problem of conservation of archaeological heritage is highly relevant for the Republic of Tatarstan (RT), because in its territory identified, studied and registered around 4,300 archaeological sites. Most of archaeological sites from the Mesolithic to the late Middle Ages, now situated in the coastal zone of reservoirs where archaeological objects destroying because of intensive abrasion processes. The Volga and Kama rivers region attracted people for millennia. This territory of the Russian Plain is abounding in archaeological sites of various ages. During the Upper Paleolithic study region was quite convenient for living activity of the first inhabitants because of its situation out of the glacier limits. The sites on the banks are deposited within deluvial sediments of the Late Valday glaciation which have been accumulated on the slope of the Volga and Kama valleys, placing the third terrace and the segmentations of the second terrace over the flood-plain and now completely or fragmentary destroyed by reservoir waters. The analysis of remote sensing (1958-2013) and field survey (2011-2013) data performed. Georeferencing and alignment of the historical maps with remote sensing data makes possible to reveal mistakes in old site plans and re-create the shape of the destroyed archaeological objects, as well to get the exact size of the monument and its correct orientation. Results showed also that the studying sites caused a great rate of destruction of coastline. Cultural heritage sites monitoring, with information about the chronology, cultural layer value, settlement specifics, etc., taking into account the methods used in landscape ecology and field archaeological survey, allows to evaluate damage and the intensity of archaeological sites destruction through the dangerous exogenous processes estimation. Exogenous processes data and archaeological GIS integration will form unified system of archaeological rescue works, will provide analysis of large amount

  7. [Trematodes of birds (Aves) from the Middle Volga region. 2. Orders Plagiorchiida, Renicolida, Strigeida, and Schistosomatida].

    Science.gov (United States)

    Kirillov, A A; Kirillova, N Iu

    2013-01-01

    Data on trematodes of Plagiorchiida, Renicolida, Strigeida, and Schistosomatida, parasitizing in birds of the Middle Volga region are given. Proceedings of the different authors are supplemented by results of our research. Two species of trematodes (Brachylaima mesostoma and Mosesia amplavaginata) are specified for birds of the middle Volga region for the first time. New hosts were revealed for 2 trematode species: the great tit for Plagiorchis laricola and the common chaffinch for M. amplavaginata. The following characteristics for each parasite are given: it's systematic position, the spectrum of hosts, localization, collecting site, biology, the degree of host specificity and geographical range. The morphological description and original figures of 11 species of trematodes are presented.

  8. Pathological Condition of Trees and Shrubs of Forest Plantations in the Middle and Lower Volga Region

    Directory of Open Access Journals (Sweden)

    Kolmukidi Svetlana Valeryevna

    2015-09-01

    Full Text Available The materials on the study of the characteristics of pathologies common in the protective forest plantations are presented. The basic factors of deterioration of woody species pathological conditions are identified. The most common and harmful diseases of the major tree species of the Lower and Middle Volga region are determined. The comparative tolerance of systematic structure of the main forest-forming species to diseases are revealed. The complex research of modern pathological condition of trees and shrubs agroforestry plantations in the steppe and dry steppe regions of Lower and Middle Volga is carried out. Arid climate and harsh growing conditions contribute to the weakening of the stability of trees and shrubs and the deterioration of the pathological state plantations. Abnormal weather conditions (high temperatures, insufficiency or lack of precipitation, strong winds, hot winds, careless use of fire were the reason of forest plantations death. The varying degrees of resistance to pathogens among systematic composition rocks of artificial planting: elm, poplar, birch, ash, maple and others are revealed. The diseases of various etiologies, aggressiveness and severity leading to partial or complete loss of epiphytotics are identified. The most harmful are the vascular pathology (Dutch elm disease, Verticillium of maple, necrotic and cancerous disease of poplar, rot, bacterial diseases. The Middle Volga region Submucusracemosa is the most immune to pathogens, but Ribesaureum is quite resistant to anthracnose and powdery mildew, meanwhile it is subject to Verticillium wilt (Fungi of the genus Verticillium. In the Lower Volga region Cotinuscoggygria and Loniceratatarica are resistant to pathogens. Ribesaureum is subject to anthracnose and Verticillium wilt, on the branches of shadberry necrosis sore meets. Leaves of pea tree suffer from Septoria and rust, branch necrosis and cancer. The use of more sustainable, fast-growing species, hybrids

  9. DEVELOPMENT ELECTRONIC MAPS OF ECOLOGICAL STATUS OF WATER OBJECTS OF THE VOLGA RIVER DELTA

    Directory of Open Access Journals (Sweden)

    Z. N. Isenalieva

    2016-01-01

    Full Text Available Abstract. Aim. The aim of this work was the comprehensive study of the ecological state of water objects of the Volga River delta. Methods. The following methods were used: field (collection, observation, organoleptic, uniform chemical analysis techniques are based on colorimetric, settlement, photometric, spectrometric measurement methods. Results. On the basis of results of researches for 2010-2014 performed a comparative analysis of the dynamics of the content of hydro-chemical indicators of environmental quality in waters of the Volga River delta and the residential areas of the background. Applying an integrated approach to the study of biological indicators of water quality. Created digitized map of the quality of aquatic ecosystems of the Volga River delta. Displaying modern ecological condition of watercourses investigated, determined the degree of contamination, the overall trophic and saprobic. Main conclusions. The work has identified adverse environmental situation in water objects of the Astrakhan and the surrounding areas. Average annual concentrations of toxicological substances water objects in the background zone 10 times less than in the water objects of settlements. As a result of work on the basis of ArcGis 10.2.2 created information environment "Eco-monitor", which is a systematic set of information, and quantitatively characterizing the ecological status of water objects. Created on the basis of ArcGis 10.2.2 information environment monitoring system of waterways allows for a temporary and spatial analysis, to assess the quality of different streams in the control sections.

  10. Variability of morphological characteristics of bream Abramis brama in water basins of upper Volga region

    Directory of Open Access Journals (Sweden)

    I. A. Stolbunov

    2005-09-01

    Full Text Available Data on variability of morphological readings of bream in the Rybinsk reservoir, and also in the system of reservoirs and water-currents (lake Galichskoe – river Kostroma – river Sot’ – the Kostroma expansion – Gorki reservoir were generalized.

  11. Late Quaternary chronology of paleo-climatic changes in Caspian Sea region based on Lower Volga sections

    Science.gov (United States)

    Kurbanov, Redzhep; Yanina, Tamara; Murray, Andrew; Svitoch, Alexander; Tkach, Nikolai

    2017-04-01

    Valdai glaciation. Lower soil horizon that has no dating, logically refers to the maximum warm era of Mikulino interglacial (MIS 5e). In the history of Caspian Sea this era responded to Late Khazarian transgressive-regressive stage (MIS 5): Late Khazarian minor transgression (level of about -10 m), characterized by warm-water, and the Hirkanian transgression with slightly cool environmental conditions. Both transgressive basins did not reach latitude of Srednyaya Akhtuba. Continuous stage of continental development of the territory, reflected in the structure of the section (layers 13-8), in the stratigraphic scheme of the Caspian region refers to Atelian formation, situated between Late Khazarian and Khvalynian transgressive epochs of the basin. Different facies complex (layers 11-9) of alluvial deposits of the section reflects the stage of initial development stage of Khvalynian transgression of the Caspian Sea - the accumulation of alluvium strata in raising erosion basis conditions, responding to interstadial Inter-Valdai warming era (MIS 3). Late Pleistocene continental development stage ends with faze of accumulation of loess sandy loam (layer 8). Obviously, it correlates with the last glacial maximum (MIS 2), dry cold era, conditions of which were not conducive to the development of the Caspian transgression - it was regressive (eltonskaya regression?) stage. Thus, the continental Atelian era of the upper (Volgograd) area of the Lower Volga region reflects three distinct paleogeographic events of the Caspian Sea history: 1. Atelian Caspian regression in conditions of Kalinin glaciation (MIS 4); 2. The initial stage of Khvalynian transgression under interstadial warming (MIS 3); 3. Regression, corresponding Ostashkovski glaciation (MIS 2). This sediments complex represents Atelian formation in Caspian region stratigraphic scheme, the amount of which is beyond the scope of the same name regression (Atelian). "Marine" stage of area development is expressed in

  12. Shale Hydrocarbon Prospecting in the Central Part of the Volga-Ural Oil and Gas Province

    Science.gov (United States)

    Muslimov, Renat Kh.; Plotnikova, Irina N.

    2014-05-01

    Until now nobody has prospected or estimated the oil shale resources in Tatarstan, although the high-carbon rocks of Domanikoidtype often became an object of studies dedicated to assessment of the generation potential of liquid and gaseous hydrocarbons. The evaluation of oil-shale deposits in Tatarstan should base on the well-known geological, geochemical and technological criteria. The main, determining conditions for shale oil and gas deposit formation are the following: high content of organic matter (OM) in the rock, and its certain catagenetic maturity; special features of the mineral composition of rocks that contribute to the formation of fractures; and the presence of overlying and underlying impermeable dense strata that ensure the safety of hydrocarbons in the shale series. In Tatarstan, the development prospects of shale oil fields should be associated primarily with the rocks ofDomanikoid formations of Upper Devonian - such as Semiluksky (Domanik) horizon, as well asRechitsky (Mendymsky) horizon and Domanikoid formations of central and side areas of the Kama-Kinel trough system. Studies on Domanikwere started in the middle of the last century, when the Ural-Volga region experienced active interest for oil exploration. Then the research of Domanikoid series was carried out at the Department of Oil and Gas Geology, Kazan State University. Butback then the prospecting was not clearly associated with an estimate of shale oil resources. As revealed during rock geochemical studies of the rock, the average content of organic matter in deposits of Semiluksky and Mendymsky horizons is 8.35 and 2.56 % respectively, which is enough to takethese horizons as the main object of research and resource assessment. The presence of silica rocks and dense limestone in such a large proportion is a favorable factor in terms of assessing the effectiveness of fracturing. So we have a quite clear understanding of how to explore Domanik. In fact, the geological structure of our

  13. “BRAINSTORM” OF SUSTAINABLE DEVELOPMENT INDEXES AND INDICATORS (ON THE EXAMPLE OF THE VOLGA BASIN

    Directory of Open Access Journals (Sweden)

    N. V. Kostina

    2016-01-01

    Full Text Available Aim of the research – development of management strategies ensuring sustainable development of the territories of the Volga river basin and its administrative units.Methods. In the research we used various methods of mathematical statistics, systematic principles. We propose the conception of "brainstorming" for the assessment of the territory using indices and indicators of sustainable development.Results. We selected nine indicators and indices. We have conducted a correlation analysis of the selected indices and indicators of sustainable development, all of which reflect the state of social, ecological and economic systems. For an integrated assessment of the two objects one introduced the "critical" and the "reference" state and fixed values for each index and indicator under the review. Factor analysis in the space of two principal components is conducted as well as one carried out the calculation of generalized desirability function for each administrative unit of the Volga river basin. "Brainstorm", taking into consideration indices and indicators of sustainable development, showed similarities in the administrative units of the Volga river basin, which primarily reflects approximately the same socio-ecological-economic development, defined by a single policy and economic decisions.Conclusion. The analysis revealed different management strategies of sustainable development of regions. The first group (strategy A includes the Republic of Tatarstan, and Chuvashia, Moscow and Samara regions, which should pay special attention to investments in improving the "life quality" by stabilizing and reducing the degree of anthropogenic load on the territory. The second group (strategy B: Astrakhan, Volgograd, Kirov, Tver and Kostroma and Perm regions - it is advisable to do finance and investment of resources in public education, increase the average lifetime, increase the incomes of the population. For the remaining areas optimally

  14. DETERMINATION OF HYDRO-ECOLOGICAL FACTORS OF THE VOLGA-CASPIAN AQUATIC ECOSYSTEMS STABILITY IN DESIGNING THEIR PROTECTION

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    Natalia Mitina

    2010-01-01

    Full Text Available This paper discusses possible consequences of changes in the Volga-Caspian aquatic ecosystems resulting from climate change according to the data scenarios of the Worldwide Meteorological Organization. Main hydro-ecological factors of stability of the Northern Caspian Sea ecosystems have been determined. It appears that ecosystem stability in the Northern Caspian Sea is primarily affected by natural conditions. It is essential to model riparian ecosystem processes and winter regime of reservoirs to develop strategies for mitigation of negative impacts of climate change. Such measures may include improvement of existing dams in the Volga region.

  15. Heavy metals in system «Delta of Volga - Northern Caspian Sea

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    E. V. Ostrovscaya

    2008-01-01

    Full Text Available It is displayed that the composition of heavy metals compounds in water and suspensions in the area of marine and riverine waters mixing undergo natural changes due to sedimentation and transformation. The system “Volga Delta – North Caspian” as a geochemical barrier hampers the transfer of toxic heavy metals forms from the sea to the river, although the content of toxic iron and manganese forms at the marine border of coastal waters can reach up to 30% of total concentration.

  16. To the History of Financial and Economic Activity of the Volga River Transport During the NEP and the First Five-Year Period

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    Gomanenko Olesya Aleksandrovna

    2016-04-01

    Full Text Available The Volga transport for 10 years (1923-1934 was influenced by all those changes which happened in the national economy of the country during the periods of the New Economic Policy and its transition to the forced industrialization. Since 1923 attempts of its delivery to concession in connection with the project of creation of the Volga-Don-Azov Sea hydraulic engineering constructions by means of the Western firms and banks took place. In 1929 those attempts ended without any results. Most likely, threat of outflow from the USSR of scarce currency in the form of profits of concessionaires was the main cause. That threat moved promises of foreign firms to significantly modernize and expand the Volga transport with all its coastal infrastructure, and also to promote creation of “new freights” in a zone of operations of the Volga fleet. Up to its reorganization in 1934 the Volga fleet constantly experienced the financial and technical difficulties caused by wear of watercrafts, low tariffs for a cargo transportation, etc. However, these low tariffs allowed the large new enterprises and constructions of the first five-year plans period to reduce their transport expenses. It favorably affected the process of industrialization of the Volga region and other ones. Losses on freight transportation were offset by the Volga water transport due to passenger traffic by increasing the high efficiency of passenger capacity of ships, an intensification of a passenger traffic and increase of a passenger tariff.

  17. Effect of climate changes on the soil freezing depth in the Volga River basin

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    I. L. Kalyuzhny

    2016-01-01

    Full Text Available It is established that the climate warming leads to decrease in depth of soil freezing in the whole area basin of the River Volga. This effect is observed since 1978. Depths of soil freezing averaged over the whole basin decreased relative to values measured during the period of stable climate conditions by 34 cm, i.e. from 92 up to 58 cm, or by 37%. In the Northern part of the basin, the depths have decreased by 49%, in the Western, Eastern, and Southern areas – 39, 24 and 38%, respectively. The spatial variability of the depths is estimated by the example of the river Vyatka, the large tributary of the Volga with area of 124 000 km2 and the site «Log Usadjevsky» with area of 2.0 km2 (a part of experimental polygon of the Valdai waterbalance station. It is shown that the coefficient of variation of the freezing depth decreases when the depth increases. When the depth becomes smaller 60 cm plots of thawed soil appear that significantly increases the infiltration ability of the basin. The technique of estimating the soil freezing depth under change of climate characteristics is proposed.

  18. Two Towns in the Lower Volga Region on the Mappa Mundi, 1457

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    Volkov Igor V.

    2016-06-01

    Full Text Available The author analyzes a medieval cartographic source – an anonymous so called Genoese World Map of 1457, which has been discussed many times, including in relevant monographs. Unfortunately, most publications contain low resolution and thus unreadable images of this map, or just drawings instead of photos. One can even fi nd some wrong dating or erroneous attribution of this map to Paolo dal Pozzo Toscanelli. The cartographer strived to produce a combination of data from all available sources: ancient accounts (Claudius Ptolemy, mainly, medieval ecclesiastic mappae mundi, travel accounts from Marco Polo to Nicolo Conti, and navigational portolano-charts. Sources for presentation of the Volga and Caspian Sea basin on this map are not explicitly identifi ed, because there is no explicit protograph known, and the presentation itself is seen as an independent source. The author dates information about this terrain from the rise of the Golden Horde under Uzbeg Khan (1313 – 1341 and Jani Beg (1342 – 1357 to the rise of Tamerlane (ca 1370. Two towns are shown in the Lower Volga region: Sarai (Sala and “the other Sarai” (Saraalis. Their correlation with the Selitrennoye and Tsarevskoye hillforts is not so obvious as on the maps derived from Fra Mauro’s protograph, but this correlation is most likely. This map is another source demonstrating that the idea of just one Sarai (this idea emerged in 1990s is not plausible.

  19. The technique of reconstruction the settlements fortifications of X–XVI centuries in the Middle Volga

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    Gubaidullin Airat M.

    2015-09-01

    Full Text Available The article deals with archaeological data on defensive structures of medieval settlements and in particular on the monuments of fortification of Volga Bulgaria and the Kazan Khanate. In this regard, an important aim is to establish their original appearance. The author gives a reconstruction technique the medieval fortifications, located on the territory of the Middle Volga. On the basis of significant information the author attempts to determine the original appearance of defensive structures, based on the results of archaeological research. The materials of the excavation of several settlements that existed in the X–VI centuries are represented as an example. The author analyzes each monument of military architecture, discusses its characteristics and analogies. Technological methods of construction of some medieval military fortifications are also considered. These include various types of structures made of wood and soil, which have been marked by researchers long ago. In addition, it is known a large number of defensive embankments constructed only from the ground. Therefore in order to reconstruct them it is necessary to have data of their composition. This can provide the information about their original shape and size. Thus, some regularity in the definition of basic and additional fortifications can be traced. The author points at the need for theoretical developments for a general reconstruction of defensive sites reflected in the literature on fortifications.

  20. Morphological and molecular observations on the cereal cyst nematode Heterodera filipjevi from the Volga and South Ural regions of Russia

    Science.gov (United States)

    During 2010-2012, a survey was conducted to determine the distribution and species diversity of the cereal cyst nematode Heterodera filipjevi within the Volga and South Ural regions of the Russian Federation. A total of 270 soil samples were collected. Seven populations of CCN were found in the rhiz...

  1. Assessment of undiscovered oil and gas resources of the Volga-Ural Region Province, Russia and Kazakhstan, 2010

    Science.gov (United States)

    Klett, T.R.; Schenk, Christopher J.; Charpentier, Ronald R.; Brownfield, Michael E.; Pitman, Janet K.; Cook, Troy A.; Tennyson, Marilyn E.

    2010-01-01

    The U.S. Geological Survey estimated mean volumes of technically recoverable, conventional, undiscovered petroleum resources at 1.4 billion barrels of crude oil, 2.4 trillion cubic feet of natural gas, and 85 million barrels of natural gas liquids for the Volga-Ural Region Province, using a geology-based assessment methodology.

  2. The importance of flooded terrestrial habitats for larval fish in a semi-natural large floodplain (Volga, Russian Federation)

    NARCIS (Netherlands)

    Gorski, Konrad; Leeuw, De Joep; Winter, Hendrik; Khoruzhaya, Victoria; Boldyrev, Vasily; Vekhov, Dmitry; Nagelkerke, Leo

    2016-01-01

    We assessed the importance of flooded terrestrial habitats for fish larvae in a semi-natural large floodplain (Volga, Russian Federation) by comparing abundances at the shoreline of permanent waterbodies with flooded terrestrial habitats. We found that overall larval abundance at the shoreline of

  3. [Role of Aeromonas in the monitoring of a hydroecosystem in the Volga-Caspian area].

    Science.gov (United States)

    Obukhova, O V; Lartseva, L V; Lisitskaia, I A

    2011-01-01

    The paper gives data obtained over many years on the quantity of bacteria of the genus Aeromonas in the hydroecosystems of the delta of the Volga and Caspian Sea and in commercial fishes (sturgeon (Acipenseridae), pike perch (Stizostedion), carp (Cyprinus carpio), silurus (Silurus glanis), etc.). It provides a detailed analysis of their seasonal trends and spatial distribution, markers of their pathogenicity, and antibiotic resistance. The findings suggest that Aeromonas is a causative agent of sapronoses and meets the criteria for natural focal infections. They show a wide range of tolerance to the abiotic factors of hydroecosystems, as well as mixotrophy and autrophic nutrition in the environment and they are of great sanitary and hygienic importance.

  4. Folklore as historical and cultural legasy of the lower Volga region in the first third of the XXth century: B.S. Laschilin, A.M. Listopadov

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    Rodionova Olga Igorevna

    2013-11-01

    Full Text Available In the present article the question of the folklore phenomenon in the folk art of the Lower Volga Region in the first third of the 20th century is considered. In the course of research high emphasis was placed on the Cossack subject matter. The role of B.S. Laschilin and A.M. Listopadov in collecting and publishing folk art, the folklore of the Don Cossacks, is revealed. Boris Stepanovitch Laschilin’s work left a great impact in the artistic life of our region. In B.S. Laschilin’s books, that were published in Rostov-on-Don, Saratov, Stalingrad-Volgograd, contained tales, fairy tales, bylinas, legends, songs, ditties, proverbs, sayings, ancient dramas of the first Russian folk theatres, exorcisms. Boris Stepanovitch kept selecting songs and ditties, chastooshkas for Voronezh Folk Choir “Voronezh girls”, which are still in the repertoire of the Pyatnitsky Russian Folk Chorus. Folklorist and musician Alexander Mikhailovich Listopadov, who collected and studied folk songs from his youth up, and recorded them in the Don Region hamlets and Cossack villages, spent more than 50 years of his life on the research of the Don Cossack’s musical culture. Alexander Mikhailovich Listopadov’s heritage made an important contribution to the native musical folklore study. Folklore compositions is a unique source of knowledge of history, way of life, moral and other national concepts, which allows us to reconstitute a linguistic personality of a definite historical epoch.

  5. Structure and evolution of the Sura-Kama strike-slip zone in the Cenozoic (the Volga-Ural anteclise of the East European Platform)

    Science.gov (United States)

    Kolodyazhnyi, S. Yu.

    2015-07-01

    The Sura-Kama zone (SKZ) complicates the central area of the Volga-Ural anteclise and extends sublaterally from the Sura River basin towards the Kama River at a distance of 700-750 km. Based on the analysis of geological-geophysical data and structural studies, a model for the tectonic structure and the evolution of the SKZ is developed. This is a deep tectonic fault that shows the features of long-term polystage development. During the latest Cimmerian-Alpine period of tectonic reactivation, the SKZ represented a zone of strike-slip and consecutive manifestation of early transpressional right-lateral strike-slip dislocations that changed to left-lateral strike-slip displacements under transtension settings as a result of kinematic inversion. Features of the heterogeneous structure of the SKZ are revealed. The segments formed by the system of strike-slip duplexes are alternated along the strike by the principle of rotation-fold and "domino" structures. The particular models of evolution of these segments are proposed by the examples of the widely known Karlin, Tetyushin, and Lower Kama dislocations. It is assumed that kinematic inversion and compression-decompression phenomena on the flanks of the SKZ, as well as the tectonic environments in the area of its dynamic influence were highly important for the development of the processes of migration and redistribution of hydrocarbon components.

  6. Problems and Prospects of Tourism Development on Specially Protected Territories of Trans-Volga Region

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    Kursakova Nadezhda Aleksandrovna

    2015-09-01

    Full Text Available The vital topic of the development of tourism in the Volgograd region is studied in the article. The growing demand for recreational resources of local importance is shown. The positive and negative aspects of direct and indirect impact of tourism activities on specially protected natural territories of Trans-Volga region are examined. It is noted that the extreme sensitivity of arid zone landscape to recreational impact, even slight scattered recreational load (the passage of several dozens of people through the territory causes significant changes in phytocenosis – reduced plant cover, the share of weed species. The changes in geobotanical characteristics of the territory clearly persist throughout the growing season, the next season will not eliminate differences in the characteristics of the control and experimental plots. The changes arising from a linear recreational load are even more sustained, and they affect the most attractive natural objects, intensively visited by tourists. The role of the Volga-Akhtuba Floodplain and Eltonsky nature parks in the development of ecological tourism is shown in the article. It is emphasized that the interests of travelers should not be in conflict with the basic objectives of protected areas and should also match with the offered range of destinations. It is proposed to switch the attention of tourists so as not to lose those wishing to visit the territory, do not jeopardize the fragile natural systems. It is proposed to use both global and Russian experience of creating alternative forms of recreation that harmoniously blend into the landscape, contribute to the preservation of natural, historical and cultural heritage of the territory and gave the tourists a sense of belonging to the ethnic traditions of past eras.

  7. [Trematodes of birds (Aves) from the Middle Volga region. 1. Orders Brachylaimidae, Cyclocoelida, Echinostomatida, Notocotylida, and Opisthorchiida].

    Science.gov (United States)

    Kirillov, A A; Kitillova, N Iu

    2013-01-01

    The data on trematodes of the orders Brachylaimidae, Cyclocoelida, Echinostomatida, Notocotylida, and Opisthorchiida from the Middle Volga region are given. Records of different authors are supplemented with the results of our own research. Reliable records are confirmed for 61 trematode species. The following characteristics for each parasite species are given: the systematic position, the host spectrum, locality, collecting sites, biology, degree of host specificity, and the geographical range. Morphological descriptions and original figures of 3 trematodes species are given.

  8. Assessment of the Influence of the Hydrological Regime of the Volga River on the Dynamics of Flooding on Sarpinsky Island

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    A.S. Rulev

    2017-03-01

    Full Text Available The seasonal dynamics of flooding on Sarpinsky Island, which is included in the city of Volgograd, following the damming by the Volga HPP has been considered. The following research problems have been set: firstly, to establish seasonal patterns of flooding in the island territory; secondly, to find out if there is a flooding threat to social infrastructure facilities. The flooded area of the island has been assessed by Landsat multispectral images with a spatial resolution of 30 m. Only images with the survey date corresponding to the peak of high waters (with the difference of not more than 7–10 days have been analyzed. The flooding areas of the island have been calculated for the date when flooding peaked (April–May during the period from 1985 to 2016. The phases of spring flooding determined by the island landscape and the water discharge from the Volga HPP have been revealed. The curve of the area of flooding reaches maximum values after the water discharge is up to 11–12 km3, which depends on the initial filling of floodplain reservoirs (landscape depressions in depth without any increase in the area of flooding. The average shift between the peaks of water discharge and the area of flooding is 10–15 days and reflects gradual filling of floodplain reservoirs on Sarpinsky Island after the beginning of water discharge from the Volga HPP. It has been found that there is no threat to infrastructure facilities on Sarpinsky Island under the current volumes of water discharge during the flooding period. The obtained results are important for urban planning on the island, as well as for management of the regimes of water passage through the dam of the Volga HPP.

  9. A Simple Harmonic Model for FAPAR Temporal Dynamics in the Wetlands of the Volga-Akhtuba Floodplain

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    Alexander Kozlov

    2016-09-01

    Full Text Available The paper reports a technique used to construct a reference time series for the fraction of absorbed photosynthetically-active radiation (FAPAR based on remotely-sensed data in the largest Russian arid wetland territory. For the arid Volga-Akhtuba wetlands, FAPAR appears to be an informative spectral index for estimating plant cover health and its seasonal and annual dynamics. Since FAPAR algorithms are developed for multiple satellite sensors, all FAPAR-based models are suggested to be universal and useful for future studies and long-term monitoring of plant cover, particularly in wetlands. The model developed in the present work for FAPAR temporal dynamics clearly reflects the field-observed seasonal and annual changes of plant cover in the Volga-Akhtuba floodplain wetlands. Various types of wetland plant communities were categorized by the specific parameters of the model seasonal vegetation curve. In addition, the values derived from the model function allow quantitative estimation of wetland plant cover health. This information is particularly important for the Volga-Akhtuba floodplain, because its hydrological regime is regulated by the Volzhskaya hydropower plant. The ecosystem is extremely fragile and sensitive to human impact, and wetland plant cover health is a key indicator of regulatory efficiency. The present study is another step towards developing a methodology focused on arid wetland vegetation monitoring and conservation of its biodiversity and natural conditions.

  10. The Country Council Work on Extracurricular Enlightenment of Adults in the Volga-Ural Region

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    Timur A. Magsumov

    2015-12-01

    Full Text Available The article reveals the activity of the Volga and Ural country councils to create a system of extracurricular enlightenment of adults in the later period of the existence of the Russian empire. The article is based on the statistical and mass sources, including office records from regional archives. The authors, resorting to a comparative multiaspect approach to the study of the country councils’ forms and methods of work to organize extracurricular establishments and popular educational events, make an overview of tendencies and directions, progress and problems in their development. The belated formation of the extracurricular adult education system the authors explain by the country councils; focus on primary education. The study revealed the dominant poison of country councils in the sphere of extracurricular enlightenment, a financial and pedagogical availability of this education form for great masses of population of this education form, combining general knowledge and professional skills. The social and cultural activity of country councils in the late XIXth – early XXth c.c. was profound and diverse as far as enlightenment is concerned, and helped achieve top results within a short period of time.

  11. Comparison of Levels and Sources of Lead in Modern and Ancient Soils in Low Volga Steppes

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    Pampura T. V.

    2013-04-01

    Full Text Available Concentrations and isotopic compositions of lead in the total and mobile (acid-soluble and carbonate- bound forms were determined in remote and roadside Chestnut soils in the dry steppe region of Low Volga, Russia. As a reference to evaluate the level of modern soil contamination with lead, we used ancient soil buried under a Bronze Age kurgan about 4500 years ago. In comparison with buried soil, the roadside modern soils showed clear signs of anthropogenic influence such as elevated total and mobile Pb concentrations and fractions of the mobile forms in the total pool of Pb, higher ratios of Pb/Ti and Pb/Sc, and a shift of Pb isotopic compositions towards the less radiogenic signatures found in modern Russian aerosols and gasoline. In the remote modern soils, however, these signs of anthropogenic influence were much less pronounced and could be observed only in the mobile fractions of Pb, but were practically undetectable in terms of concentrations and isotopic compositions of total lead.

  12. Studying the Permian Cross-section (Volga Region) Using Chemical and Isotopic Investigations

    Science.gov (United States)

    Gareev, B. I.; Batalin, G. A.; Nurgalieva, N. G.; Nourgaliev, D. K.

    2016-12-01

    This paper presents a study of international important site: the cross-section of Permian system's Urzhumian Stagein the ravine "Pechischy". Outcrop is located on the right bank of the Volga River (about 10 km West of Kazan). Ithas local, regional and planetary correlation features and also footprints of different geographical scale events.The main objective in the research is the deep study of sediments using chemical and isotopic investigations. XRFspectrometer was used for chemical investigations of samples. Chemistry of carbonates and clastic rocks includesthe analysis of chemical elements, compounds, petrochemical (lithogeochemical) modules for the interpretationof the genesis of lithotypes. For the review of the geochemistry of stable isotopes of carbon (oxygen) we usedIRMS. The main objective is the nature of the isotope fractionation issues, to addressing the issues of stratigraphyand paleogeography.The measurements have shown the variability of chemical parameters in cross-section. It gives us opportunity tosee small changes in sedimentation and recognize the factors that influence to the process.The work was carried out according to the Russian Government's Program of Competitive Growth of KazanFederal University, supported by the grant provided to the Kazan State University for performing the state programin the field of scientific research.

  13. The Genesis of the Urban Culture of the Steppe of the Volga Region and Sociocultural Development of the Region

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    Nadezhda V. Dulina

    2016-06-01

    Full Text Available The article is devoted to the problems of the genesis of socio-historical processes of urban culture of the steppe of the Volga region, is based on historical documents, materials of scientific expeditions conducted in the lower Volga region encyclopedic scientists from the second half of the XVIII century, and the results of archaeological research here settlement sites. Based on the fact that the whole history of mankind is the history of the reference person of its economy, the authors believe that the analysis of the spaces of the modern city must be waged simultaneously in multiple coordinate systems – involving knowledge of scientific disciplines such as history and archeology, sociology, Economics etc. Attention is focused on the events in the Volga steppes of socio-economic and cultural-historical transformation, reflected in the distinctive dynamics of sociocultural development of the medieval (Khazar, the Golden Horde, Russian and modern cities in the region. The authors come to the following conclusions: the city created (and covered by most throughout the centuries (and even millennia by many generations, carry a spatial-temporal characteristics and the variety of creative ideas that make them diverse, aesthetically balanced. The growth of these cities, like all living things, inevitably threatens the time, which naturally destroys some of their historical (and in fact – "root" part to "make room" for new construction. To the relentless dynamism of our era was not able to destroy formed for many generations the idea that is subordinated to the formation and development of each particular city, you should each time from a separate historical parts of the city (or temporal-spatial "fragments" to try to reproduce it in its entirety, as the unity and integrity, while maintaining its inherent identity.

  14. Influence of nanomirelal phases on development processes of oil reservoirs in Volga-Ural region

    Science.gov (United States)

    Izotov, Victor; Sitdikova, Lyalya

    2010-05-01

    The optimisation of oil-field development by enhancing oil recovery is the most important target in further improvement of oil production processes. The resulting economic benefits often exceed those from discoveries of new fields, especially in hard-to-reach regions. Despite the wide use of enhanced oil recovery methods, their efficiency is in many cases not as high as expected. For instance, in terrigenous reservoirs of the Volga-Ural region oil recovery rarely exceeds 0.4, and in carbonate reservoirs with the complex structure, variability and high oil viscosity it can be as low as 0.15-0.20. In natural bitumen fields, the recovery factor is even lower. Analysis of the conducted EOR optimisation operations indicates that EOR methods mainly aim to change the hydrodynamic conditions in the reservoir under development or the physicochemical properties of oil, - for instance, to decrease its viscosity or to change its lyophilic behaviour. The impact of EOR methods on the reservoir's mineral component remains largely unstudied. It is generally believed that the mineral component of the reservoir, its matrix, is inert and remains unaffected by EOR methods. However, the analysis of oil-field development processes and the available studies allow the conclusion that natural hydrocarbon reservoirs are sensitive to any impact on both the near-wellbore zone and the whole reservoir. The authors' research in the reservoir's mineral phase dynamics has permitted the conclusion that the reservoir's fluid phases (including hydrocarbons) and the reservoir itself form a lithogeochemical system that remains in unstable equilibrium. Any external impact, such as the reservoir penetration or the use of EOR methods, disturbs this equilibrium and changes the filtration characteristics of the reservoir, the fluid chemistry and the reaction of the reservoir's mineral component to the impact. In order to characterise the processes in the reservoir in the course of its development, the

  15. Computer-based technology for elaboration of morphometric characteristics of Volga reservoirs

    Science.gov (United States)

    Shikunova, E.

    2009-04-01

    There are nine biggest Russian reservoirs in Volga basin. Total capacity is about 168 km3, effective capacity - 80 km3, total square is equal 24 000 km2 and total length - 3 500 km. Water resources are used in hydroenergetic, navigation, water supply, fishing industry, etc. It is important to know current morphometric characteristics of all reservoirs. For getting all morphometric characteristics we need bottom and coastal zone digital elevation model (DEM) for each reservoir. In 2008 in State Oceanographic Institute methodology and computer-based technology of creating DEM were developed and evaluated on Uglichsky reservoir. The information base includes field survey data, remote sensing data and large-scale maps. Bathymetric survey was made by crosslines with intervals 500 m or 250 m. Expedition team of State Oceanographic Institute made survey using special complex of echo sounder, GPS and specialized computer. This complex allows to determine X, Y, Z coordinates in a moment and display this information. 370 crosslines were measured and they included 416 000 survey data. Large-scale maps were used for vectorization of coastline and relief data. For elaboration coastline in the most difficult zones were used remote sensing data. All received polygonal and line objects were transformed into point's data type with point's frequency 2.5-3 m. The total amount of points was 1 400 000. Water area was breaked up on small zones including 4 crosslines. For each zone grid was created (cell 5x5m) using method Natural Neighbor. Anisotropy depends on channel orientation. Further middle part of grid was clipped. DEM is the result of mosaic of small grids. This technology allows to create bottom and coastline DEM for evaluation of actual morphometric characteristics of reservoirs that is useful for effective water management. Next year State Oceanographic Institute plans to continue works on Gorkovsky, Volgogradsky reservoirs and several reservoirs of Moscow region.

  16. The Protective Properties of Common Reed Plantations on Shores of the Lower Volga Region

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    Solodovnikov Denis Anatolyevich

    2014-12-01

    Full Text Available The abrasion processing of shores is a pressing problem of large water basins of the Lower Volga region and other Russian regions. About 3 km2 of shoreland is annually lost in the zone of the Volgograd water basin as a result of this process. The existing methods of shores protection are connected with the creation of concrete structures having a high level of erosion resistance. They are extremely expensive and in most cases they are not affordable for rural municipalities suffering from abrasion. The authors offer cheap and environmentally friendly way of protecting the shores of large water basins from abrasion. The method is based on the plantation of a common reed strip on a water basin’s shallow. The biological characteristics of common reed as the main component of shore protection structures are described. The terms and milestones of the work in the conditions of the Volgograd water basin are developed. The main result of applying our methodology is the complete cessation of abrasion processing of the shore at the corresponding piece of land. The authors overview the positive qualities of reed plantations, their biocenotic, barrier and waterproof role in on-shore ecosystems. The application of the described method will allow saving for the national economy dozens of hectares of valuable shore lands annually, in particular, irrigated cropland, settlement lands, infrastructure. In addition to the direct benefits associated with the conservation of land resources, the intensity of adverse processes associated with erosion of shores (water basin muddying, deterioration of sanitary qualities of water will decrease. Due to the wide geographic spread of common reed described in the present work, the technology of shores stabilization can be applied at almost all lowland water basins of Russia.

  17. Exclusion mapping of familial Alzheimer disease (FAD) in the Volga Germans

    Energy Technology Data Exchange (ETDEWEB)

    Levy-Lehad, E.; Wijsman, E.M. [Univ. of Washington, Seattle, WA (United States); Bird, T.D. [Veterans` Affairs Medical Center, Seattle, WA (United States)] [and others

    1994-09-01

    The Volga Germans (VG) are an ethnically distinct group of 8 families in whom early-onset (mean age-of-onset <60 years) FAD segregates as an autosomal dominant trait, probably due to a founder effect. Known FAD loci are a chromosome 14q24.3 locus for which the majority of early-onset FAD families show linkage, and the ApoE4 allele of the apolipoprotein E (ApoE) gene on chromosome 19q11.3. Linkage of VG FAD to markers on chromosomes 14, 21 and 19 has been excluded, and no APP mutations were found in affected VG subjects. The VG have an increased frequency of ApoE4 but do not show an association of FAD with the ApoE4 allele. In contrast to late-onset FAD families, ApoE4 does not modify age-of-onset in the VG: mean age-of-onset is 62.2{plus_minus}10.0 years for affected individuals with no ApoE4 alleles, 62.0{plus_minus}6.0 for affecteds homozygous for ApoE4. Therefore FAD in the VG group is caused by a locus which is as yet unidentified. To map this locus we have undertaken a genome-side search using short-tandem-repeat (STRP) markers evenly spaced (about every 20 cM) on all the autosomes. We have analyzed over 30 RFLPs and over 100 STRP markers. Approximately 50% of the genome has been excluded. An exclusion map, using the EXCLUDE program, is continuously updated to indicate regions of high likelihood for linkage.

  18. [Genetic characterization of populations of the Volga-Ural region according to the variability of the Y-chromosome].

    Science.gov (United States)

    Trofimova, N V; Litvinov, S S; Khusainova, R I; Penkin, L N; Akhmetova, V L; Akhatova, F S; Khusnutdinova, É K

    2015-01-01

    An analysis of genetic diversity in nine ethnic groups of the Volga-Ural region was carried out using 15 biallelic loci in the nonrecombining region of the Y-chromosome. The major Y-chromosome haplogroups in the region are R1a-M198, R1b-M269, and N-M231. It was found that Bashkirs show the greatest difference from other populations of the Volga-Ural region according both to F(st) and to the principal component analysis. In addition, analysis of the frequency distribution of Y-chromosome haplogroups was carried out in the Besermyan population, which was not studied previously from the Y-chromosome perspective. The results of this study revealed the predominance of haplogroup N-M231 (54.7%) in this ethnic group, which may indicate the prevalence of the Finno-Ugric component in the formation of the patrilineal component in the gene pool of the Besermyan ethnic group.

  19. Linfedema Primário em Membro Superior Esquerdo em Paciente Idosa / Primary Lymphedema in Upper Left Member in Elderly Patient

    Directory of Open Access Journals (Sweden)

    Melissa Andreia de Moraes Silva

    2016-09-01

    Full Text Available Introdução: O Linfedema Primário (LP é caracterizado por disfunção do sistema linfático de etiologia idiopática. Este pode ser dividido em congênito, precoce e tardio, sendo o tipo congênito o mais raro. O diagnóstico desta patologia é predominantemente clínico, podendo ser solicitado linfocintilografia quando há dúvida diagnóstica. O diagnóstico precoce está diretamente relacionado com o melhor prognóstico do paciente, postergando limitações físicas e psico­sociais. O tratamento do LP é clínico e multiprofissional. Relato do Caso: Relatou­se caso raro de uma paciente de 78 anos de idade, sexo feminino, portadora de Linfedema Primário em membro superior esquerdo desde o nascimento, o qual foi investigado durante a infância, porém com resultados inconclusivos. Conclusão: Embora seja pequena a quantidade de trabalhos sobre o tema, este relato confirma que o diagnóstico precoce é fundamental e que o tratamento igualmente precoce e multiprofissional melhora a qualidade de vida dos pacientes. Introduction: Primary lymphedema (PL is characterized by dysfunction of the lymphatic system of idiopathic etiology. It can be divided into congenital, early and late, with the congenital type being the rarest. The diagnosis of this pathology is predominantly clinical, and a lymphoscintilography may be requested when the diagnostic is uncertain. Early diagnosis is directly related to better patient prognosis, delaying physical and psychosocial limitations. Treatment of PL is clinical and multiprofessional. Case Report: The aim of this paper is to describe a rare case of a 78­ year­old female with primary lymphedema in the left arm since her birth, which was investigated during childhood, but with inconclusive results. Conclusion: Although there is small amount of work on the topic, this report confirms that early diagnosis is crucial and also that early and multidisciplinary treatment improves the quality of life of patients.

  20. [Typhus fever morbidity among the military personnel and civilians in the regions around Volga river during World War I].

    Science.gov (United States)

    Raĭkova, S V; Zav'ialov, A I

    2013-07-01

    The article is concerned to the materials about epidemiologic situation of typhus fever in the regions around Volga river (Saratovsky, Samarsky and others) during World War I (1914-1918) among the military personnel of the Russian army and among the civilians. The main reasons for spread of infection, ways of the transmission, and also measures for decreasing of level of morbidity on the different stages of evacuation of patients with typhus fever in the safer hospitals are shown. The most important methods of fighting against epidemic of typhus fever were: isolation of patients in separate special hospitals, desincection and disinfection measures in the foci of infection and organization appropriate sanitary conditions for military man in the army and among civilians. Acquired valuable experience of territorial and military doctors during the period of epidemic of typhus fever allowed receiving complex effective antiepidemic measures of fighting and prevention from this disease.

  1. Primary production of phytoplankton in the estuaries of different types (by the example of the Curonian and Vistula Lagoons of the Baltic Sea and the Volga delta)

    Science.gov (United States)

    Aleksandrov, Sergei; Gorbunova, Julia

    2016-04-01

    The aim was to analyze the long-term change of the primary production in large estuaries of different types (Volga delta, Curonian and Vistula Lagoons) under the impact of environmental factors (e.g. climate changes, algal blooms, invasion mollusk). The researches (primary production, chlorophyll, nutrients and others) were carried out monthly from March-April to November in the Vistula and Curonian Lagoons since 1991 to 2015, and in the Lower part of the Volga Delta and fore-delta since 1996 to 2007. The Volga River is the largest river in Europe that flows into the Caspian Sea and it forms a great delta. According to the analysis of long-term data (from the 1960s), the maximum eutrophication and primary production (85-100 gCṡm-2ṡyear-1) in the Volga Delta was observed in the 1980s. In the 1990s, fertilizers use and the input of nutrients into the Volga Delta decreased significantly. Due of the high-flow exchange in the delta, especially during high-water years, observed in the 1980s - early 2000s, this led to a significant decrease in the concentration of nutrients in the water in the Volga Delta. As a result, in the 1990-2000s, the primary production has decreased to the level of 1960s-1970s (40-60 gCṡm-2ṡyear-1) and the process of eutrophication was replaced by de-eutrophication. At present, the trophic status of the Volga delta assessed as mesotrophic. The future trend of phytoplankton primary production of the Volga delta will greatly depend on the scenario of nutrients loading and river runoff. The Curonian Lagoon and Vistula Lagoon are the largest coastal lagoons of the Baltic Sea, relating to the most highly productive water bodies of Europe. The Curonian Lagoon is choke mostly freshwater lagoon, while the Vistula Lagoon is restricted brackish water lagoon. In the last decades the nutrients loading changes, warming trend and biological invasions are observed. The Curonian Lagoon may be characterized as hypertrophic water body. The local climate

  2. The study of filaggrin gene mutations and copy number variation in atopic dermatitis patients from Volga-Ural region of Russia.

    Science.gov (United States)

    Gimalova, Galiya F; Karunas, Alexandra S; Fedorova, Yuliya Y; Khusnutdinova, Elza K

    2016-10-10

    Atopic dermatitis (AD) is a chronic inflammatory skin disease characterized by age-specific localization, dryness, itch and hypersensitivity to allergens. In our study, we investigated FLG gene mutations and CNVs in AD patients and control subjects of different ethnic origin from Volga-Ural region. AD group included 303 patients (177 Russians, 126 Tatars). Control group consisted of 261 healthy individuals (152 Russians, 109 Tatars). The study revealed 66 FLG mutation carriers and demonstrated an association between c.2282del4 deletion and AD development in Russians and Tatars of Volga-Ural region of Russia. In the analysis of the FLG gene CNVs, the most common was 10-repeat allele in both Russian and Tatar patients and controls. We were unable to find any significant difference in CNV repeats count between AD patients and control individuals. Copyright © 2016 Elsevier B.V. All rights reserved.

  3. Turning Left

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    An increasing number of left-wing political figures are holding power in Latin America, raising eyebrows in Washington This is a banner election year in Latin America, with nine countries heading to the polls to select new leaders. But the succession of victories by left-leaning politicians, with more likely in the coming months, is expected to draw mounting concern from the United

  4. Peculiarities of Social Insurance of Workers of the Middle Volga Steamship Line During the Post-War Restoration Period (1945-1946

    Directory of Open Access Journals (Sweden)

    Gomanenko Olesya Aleksandrovna

    2015-11-01

    Full Text Available During the post-war restoration the work on social insurance in river transport was intensified. It were trade unions including councils of social insurance that dealt with social problems in the Volga Steamship Lines. Trade unions exercised control over the budget of social insurance, over labor safety, etc. In the Middle Volga Steamship Line (SVRP 15 councils for social insurance functioned. They included 140 insurance agents. Their task was to decrease incidence, traumatism, and also to improve the conditions of work and life of river transport workers. Tasks of councils of a social insurance included systematic supervision over a sanitary condition of shops and territories of the industrial enterprises of the steamship line. Financial support was allocated to families of veterans with many children and families in need. Insurance delegates together with a doctor of the health center in workshops registered workers needing additional food for health reasons. Insurance delegates gave social help to patients at home and in hospital. After the end of the war comprehensive plans of improving actions were put through. Financial and food position of river transport workers improved. However in 1946 in SVRP there was a small growth of incidence again. Those who needed treatment, and also the best workers were provided with permits in sanatorium. Managements of Volga Steamship lines showed care of children of river transport workers. During thewinter period camps were decorated with New Year trees, in summer – rest was arranged. On the accounting of the trade-union organizations of the Middle Volga basin families of the lost soldiers, the military personnel, disabled veterans and demobilized consisted. As for labor protection, that, despite increase in allocations for safety measures and labor protection in 1946 at the SVRP enterprises occurred increase in accidents. So, all efforts were directed on further improvement of financial and social

  5. INFLUENCE OF SEASON PATTERN ON PREVALENCE AND SEVERITY OF ACUTE MYOCARDIAL INFARCTION, FUNCTION OF HEMOSTASIS IN PATIENTS WITH ISCHEMIC HEART DESEASE OF CLIMATE AREA OF MIDDLE VOLGA REGION

    Directory of Open Access Journals (Sweden)

    O.K. Rybak

    2007-09-01

    Full Text Available The aim of this study is to evaluate season pattern, severity and outcome of acute myocardial infarction in dependence of yearly patterns of function of hemostasis in middle Volga Region. Season pattern of prevalence myocardial infarction with winter peak was discovered, be accompanied of increase platelet aggregation, deterioration of blood viscosity, fibrinolysis depression. Most serious clinical course of summer myocardial infarction was observed with prosperity of hemostasis.

  6. «Giant child covered by the Upturn»: Memoirs of Napoleon's Army Prisoners about the Formation of the Ethnic Identity of the Peoples of the Volga

    Directory of Open Access Journals (Sweden)

    Sergej V. Belousov

    2016-12-01

    Full Text Available This article analyzes the formation of national and ethnic identity of the Volga peoples based on the study of war memories of Napoleon's army. The authors support the thesis of A. Etkind of internal colonization of Russia. Volga was the internal borders of the empire. The most powerful factor behind the need for awareness of national identity was the Patriotic War of 1812. That is why it is important to analyze the everyday practices of intercultural interaction, developed in this era the territory of multi-ethnic regions. It is important to note that the very fact of placing in the Volga provinces prisoners ofNapoleon's army testifies colonial appointment of the region. In conclusion, the authors note about the high educational value of this type of sources reflecting many aspects of provincial life. The unique experience of the formation of the multinational provincial community was grown on the basis of the recognition of the multiplicity of ethnic identities, and hence tolerance and respect for other cultural environment.

  7. When the Left is left!

    Directory of Open Access Journals (Sweden)

    Asha J Mathew

    2014-09-01

    Full Text Available Persistent left superior vena cava is an uncommon vascular anomaly; however it is the most common anomaly of the thoracic venous system. It may be stand alone or associated with other congenital heart diseases and even other extracardiac anomalies. It is due to a lack of regression and adsorption of the left anterior cardinal vein. The persistence of this vessel renders a left subclavian approach for interventions on the right heart a challenge. It may be responsible for arrthymiias. We present a report of a persistent left superior vena cava draining into the coronary sinus with a coexisting normal right superior vena cava. Keeping in mind its widespread implications on cardiac procedures and a causative factor of cardiac disturbances we have considered its course, embryological source and clinical significance.

  8. Some Features of Associated Petroleum Gases in the Northeast of Volga-Urals

    Directory of Open Access Journals (Sweden)

    G. I. Titova

    2016-09-01

    Full Text Available The composition of associated gases of the main oil and gas complexes of the Upper Devonian carbonate and terrigenous Devonian was studied for the purpose of identification of the sources of these gases. Molecular characteristics and their specific features were used together with carbon and nitrogen isotopic composition for determination of their genesis. The results showed the difference in molecular characteristics for the gases of Upper Devonian carbonate complex and Terrigenous Devonian. More contrasting results were found for isotopic composition of carbon and nitrogen. The analysis of obtained results suggests a presence of several sources of gases at the study area.

  9. Diurnal variations in integrated water vapor derived from a GPS ground network in the Volga-Ural region of Russia

    Science.gov (United States)

    Kalinnikov, Vladislav V.; Khutorova, Olga G.

    2017-03-01

    In this article, we present estimates of diurnal and semidiurnal harmonics of variations in integrated water vapor content (IWV) according to data from 16 GPS stations in the Volga-Ural region of Russia during 2013-2015. Amplitudes of diurnal harmonics are maximal in summer and reach values from 0.37 to 1.01 mm. Time at the maximum of diurnal harmonic is typically in the period from 14:00 to 17:00. Semidiurnal harmonics have the largest amplitudes in spring and autumn, but they do not exceed 0.19 mm. A comparison of the diurnal cycle from GPS data and ERA-Interim reanalysis has revealed significant differences in the phase. It is established that, as a result of evaporation from the underlying surface and convective lifting of moist air, the summer diurnal variations in IWV and surface density of water vapor are in antiphase. The diurnal cycle of IWV is determined by surface air temperature to be 88 % in summer and less than at 35 % in other seasons. It is noted that maximal amplitudes of diurnal harmonic of IWV are observed at stations located on the windward side of mountains.

  10. Upper Endoscopy

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    Full Text Available ... Clinical Topics / Procedures F - Z / Upper Endoscopy (EGD) Upper Endoscopy (EGD) The Latest Practice Guidelines Technology Reviews ... the Safety of Your Endoscopic Procedure Brochure Understanding Upper Endoscopy Brochure Make the Best Choice for Your ...

  11. The Low Volga Region and Territory of the Don Cossacks in the Unpublished Fragment of Memories by Doctor J.J. Lerche (1749

    Directory of Open Access Journals (Sweden)

    Alexander L. Kleitman

    2015-12-01

    Full Text Available Fragment of the diaries by the traveler, scholar Dr J.J. Lerche which describes his journey on the Low Volga Region and the Territory of the Don Cossacks in spring 1749 is published in the Russian translation. This text was never published before; manuscript of the diary is kept in the National Library of Russia. The document is of interest as a source of social and economic history of the South of Russia, the history of Russian science, the history of Russian-German relations.

  12. Divergence of Populations of Yellow Wagtail, Motacilla flava, and Citrine wagtaill, Motacilla citreola (Motacillidae, Passeriformes, in the Middle Volga of Russia

    Directory of Open Access Journals (Sweden)

    Artemieva E. A.

    2016-04-01

    Full Text Available Blood samples of “yellow” wagtails collected in the areas geographically representing the Middle Volga breeding populations of these species were investigated. After isolation of mtDNA barkoding of studied “yellow” wagtails species was conducted. Amplification of the subunit of cytochrome oxidase I gene used as a genetic marker for the comparison of the samples was carried out. After sequencing and sequence alignment of gene cytochrome c-oxidase I, based on the comparison of genetic distances between individuals of the studied species using Jalview phylogenetic trees of populations of species Motacilla flava Linnaeus, 1758 and Motacilla citreola Pallas, 1776 were constructed.

  13. Steppe landscapes of the Ural-Volga region in response to oil and gas production: Evaluation and minimization of direct geoecological aftereffects

    Science.gov (United States)

    Myachina, K. V.; Chibilev, A. A.; Dubrovskaya, S. A.

    2017-06-01

    This paper reports on the geoecological state of landscapes of oil and gas fields in the Ural-Volga steppe zone. Large-scale direct disturbances and impacts with dramatic aftereffects have been revealed on the basis of field research using the geographic information system (GIS) and data from remote sensing of the Earth. It has been shown that the current land-use pattern in oil and gas production areas is in need of professional control to protect and recover the landscapes in the steppe zone.

  14. Depositional environments of the south-eastern Volga-Ural anteclise in the Early-Middle Devonian.

    Science.gov (United States)

    Selezeneva, Natalia

    2017-04-01

    Nowadays, in the Orenburg region of Russia hydrocarbon potential has been determined down to a depth of 5 km. Therefore, discovery of deep fields is becoming a pressing issue there. Seismic profiles on the south-eastern part of Volga-Ural anteclise indicate two uplifts at the depth of 6-7 km composed of Emsian-Givetian deposits which likely represent large carbonate buildups. Then facies analysis of this territory (based on data of about 100 boreholes) was made and it confirmed the presence of bioherm massifs and showed sedimentary environments. Analysis of the composition and the structure of deposits revealed that in the Emsian stage a shallow-water shelf basin existed, which deepened toward the Ural and North Caspian basins and was characterized by the transgressive evolution. The early stage of transgression was dominated by the terrigenous sedimentation. This region likely had a prodelta with three (proximal, intermediate, and distal) zones. Then the basin was deepened, the amount of terrigenous material decreased and carbonate massifs started to form. At that time following environments occurred: shallow-water coastal zone, intrabasin uplift, shallow-water distal zone, relatively deep-water zone and riftogenic carbonate buildups. Facies analysis of Eifelian sediments showed that there were two shallow-water zones, where carbonates were deposed with formation of small separate organic structures, surrounded by relatively deep-water zone. Continued submergence caused development of bioherm massifs. Givetian deposits differed from the Eifelian by abundant input of the terrigenous material. The growth of the bioherm massifs stopped during this time. Due to facies analyses such paleogeographic zones as shallow-water coastal zone, deep-water shelf zone, submarine fan zone were defined. As a result, two buried reefs were discovered, which could be perspective for finding out oil and gas. These bioherms are covered by the Tournaisian depression sediments that could

  15. VARIATION IN THE OPENINGS (OSTIA OF LEFT PULMONARY VEINS INTO THE LEFT ATRIUM: A CASE REPORT

    Directory of Open Access Journals (Sweden)

    Sesi

    2015-03-01

    Full Text Available During early embryonic development, absorption of pulmonary venous network by the left primitive atrial chamber results in opening of four pulmonary veins which drain independently into its chamber. The extent of absorption and hence, the number of pulmon ary veins which open into the left atrium, may vary. Here we report a variation in the opening of the Left upper (superior pulmonary vein into the Left atrium. A total of six openings observed

  16. Magnetic Soils Profiles in the Volga-Kama Forest-Steppe Region

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    L.A. Fattakhova

    2016-09-01

    Full Text Available The magnetic properties of virgin forest-steppe soils developed on the originally vertically uniform unconsolidated parent material have been investigated. The profile samples of virgin dark-grey forest light-clayey soil derived from a siltstone of the Kazan layer of the Upper Permian and virgin leached medium-thick fertile light-clayey chernozem derived from a Quaternary heavy deluvial loam have been considered. Both soils are characterized by the accumulative type of magnetic susceptibility and F-factor values distribution patterns with depth. In the humus part of the soil profile, magnetics are present pre-dominantly in the < 2.5 µm fraction. The coercivity spectra allowed to determine the contribution of dia-/paramagnetic and ferromagnetic components to magnetic susceptibility. It has been found that magnetic susceptibility enhancement in the organogenic horizons of virgin forest-steppe soils occurs due to the contribution of ferromagnetic components. The results indicate a strong positive linear correlation between the magnetic susceptibility and oxalate-extractable Fe, as well as between the magnetic susceptibility and Schwertmann’s criterion values. Using the method of thermomagnetic analysis of the < 2.5 µm fraction, it has been found that the magnetic susceptibility enhancement in the profiles of forest-steppe soils took place due to the formation of maghemite-magnetite associations. The predominantly ferromagnetic fraction consists of small single-domain grains.

  17. Study of anthropogenic and natural impacts on archaeological sites of the Volga Bulgaria period (Republic of Tatarstan) using remote sensing data

    Science.gov (United States)

    Gainullin, I. I.; Khomyakov, P. V.; Sitdikov, A. G.; Usmanov, B. M.

    2016-08-01

    In this paper we consider the possibility of using remote sensing data for determining various negative factors affecting archaeological objects condition on the territory of the Republic of Tatarstan. Fortified settlements, with the system of defensive fortifications, were selected as the objects of study, as they are easily identified by remote sensing data. In our view, the analysis of medieval Volga Bulgars (X-XIII centuries A.D.), the most common in the territory of the Republic of Tatarstan, has the highest priority. The first task by using remote sensing was to obtain actual data on the current condition of archaeological monuments located on the Kuibyshev reservoir shore, where the threat of destruction is maximized. Due to the fact, that most of the Volga-Bulgaria settlements, is located on the small rivers banks, the second task was geomorphological description of monuments placement in order to assess the risk of their destruction by natural processes. Third objective was to evaluate the role of the human factor in archaeological sites destruction. Ancient settlements under different types of negative impact were selected for the study. Deciphering of multitemporal remote sensing data allowed to assess the objects condition and to predict the risk of further damage. Additionally, it made able to correct the form of the Bulgars hillforts in comparison with existing plans, as well their size and location in the landscape, to restore the original appearance of destroyed fortified settlements, to determine precise coordinates for the further use of these data in the archaeological geographic information systems.

  18. ARE LEFT HANDED SURGEONS LEFT OUT?

    OpenAIRE

    SriKamkshi Kothandaraman; Balasubramanian Thiagarajan

    2012-01-01

    Being a left-handed surgeon, more specifically a left-handed ENT surgeon, presents a unique pattern of difficulties.This article is an overview of left-handedness and a personal account of the specific difficulties a left-handed ENT surgeon faces.

  19. Upper Endoscopy

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    Full Text Available ... Procedure Brochure Understanding Upper Endoscopy Brochure Make the Best Choice for Your Endoscopic Procedure Brochure Members-only ... Procedure Brochure Understanding Upper Endoscopy Brochure Make the Best Choice for Your Endoscopic Procedure Brochure View more ...

  20. Upper Endoscopy

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    Full Text Available ... Endoscopic Submucosal Dissection (ESD) Endoscopic Ultrasound (EUS) Procedures F - Z GI Bleeding Manometry Photodynamic Therapy (PDT) Polypectomy ... Gastrointestinal Glossary of Terms Home / Clinical Topics / Procedures F - Z / Upper Endoscopy (EGD) Upper Endoscopy (EGD) The ...

  1. Geochemical Features of Shale Hydrocarbons of the Central Part of Volga-Ural Oil and Gas Province

    Science.gov (United States)

    Nosova, Fidania F.; Pronin, Nikita V.; Plotnikova, Irina N.; Nosova, Julia G.

    2014-05-01

    This report contains the results of the studies of shale hydrocarbons from carbonate-siliceous rocks on the territory of South-Tatar arch of Volga-Ural oil and gas province of the East European Platform. The assessment of the prospects of shale hydrocarbon in Tatarstan primarily involves finding of low permeable, poor-porous shale strata that would be rich in organic matter. Basing on the analysis of the geological structure of the sedimentary cover, we can distinguish three main objects that can be considered as promising targets for the study from the point of the possible presence of shale hydrocarbons: sedimentary deposits Riphean- Vendian; Domanicoid high-carbon rocks of Devonian time; sedimentary strata in central and side areas of Kama-Kinel deflection system. The main object of this study is Domanicoid high-carbon rocks of Devonian time. They are mainly represented by dark gray, almost black bituminous limestones that are interbedded with calcareous siliceous shales and cherts. Complex studies include the following: extraction of bitumen from the rock, determination of organic carbon content, determination of the group and elemental composition of the bitumen, gas chromatographic studies of the alkanoic lube fractions of bitumoid and oil, gas chromato-mass spectrometry of the naphthenic lube fractions of bitumoid and oil, pyrolysis studies of the rock using the Rock -Eval method (before and after extraction), study of trace-element composition of the rocks and petrologen, comparison in terms of adsorbed gas and studying of the composition of adsorbed gases. Group and elemental analyses showed that hydrocarbons scattered in the samples contain mainly resinous- and asphaltene components, the share lube fraction is smaller. The terms sediment genesis changed from weakly to strongly reducing. According to the results of gas chromatography, no biodegradation processes were observed. According to biomarker indicators in the samples studied there is some certain

  2. Prediction of formation of abrasion and landslide hazardshores of the volga reservoirs ПРОГНОЗИРОВАНИЕ АБРАЗИОННОЙ И ОПОЛЗНЕВОЙ ОПАСНОСТИ ПОБЕРЕЖИЙ ВОЛЖСКИХ ВОДОХРАНИЛИЩ

    Directory of Open Access Journals (Sweden)

    Koposov Eugeniy Vasil’evich

    2013-06-01

    Full Text Available The coastline of reservoirs of Volga Сascade has a total length of more than 11,000 km. According to various estimates about 37—48 % of total length of the banks are the banks, breaking down due to abrasion. The length of coastline of reservoirs of Volga Сascade within the boundaries of settlements is 985 km, including those in the major cities 442 km. The greatest evolutionary destruction banks are exposed to is avalanche- crumbling the shore of abrasion. The most dangerous of unpredictable behavior is land- slide coast. The Gorky reservoir in the forthcoming decade is expected to be subjected to reformation abrasion in his lake part with the average intensity of 0.47—0.10 m/year. For the period of exploitation Cheboksary reservoir from 1981 to 2011 averages of observed speed retreat edge of the abrasion shores amounted to 1.2—0.2 m/year. Large landslides on the Volga River confined to the high slopes of the right bank, folded Upper, Upper Jurassic, Lower Cretaceous deposits, are most common in the Gorky, Cheboksary, Kuibyshev, Saratov, Volgograd reservoir. Development of landslide Sursko-Volga slope in Vasil’sursk is going on from the beginning of observations (1523. In the twentieth century significant increase in landslides observed appeared in 1913—1914, 1946—1948,1979—1981 (1981 is the year when Cheboksary reservoir had been filled to the level of63.0 meters. Research method of fractal analysis of landslide activity on the right bank of the Volga River in connection with the periods of solar activity have shown that the period 2008—2019 should be characterized by a reduced number of developing land- slides, although in 2012 and 2017—2019 were perhaps the years with mean rates. This is confirmed by the data for 2012 for the city of Nizhny Novgorod. Landslides does not reveal the general tendency to decay with time. The problem of protection from destruction sites and sliding abrasion shores existing reservoirs does

  3. Upper Endoscopy

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  4. Upper Endoscopy

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    Full Text Available ... Upper Endoscopy (EGD) Quality & Safety GIQuIC Registry Infection Control Privileging & Credentialing Quality Indicators Education & Meetings Advanced Education & Training ARIA Industry ...

  5. Paleoecological crisis in the steppes of the Lower Volga region in the Middle of the Bronze Age (III-II centuries BC)

    Science.gov (United States)

    Demkina, T. S.; Borisov, A. V.; Demkin, V. A.; Khomutova, T. E.; Kuznetsova, T. V.; El'tsov, M. V.; Udal'tsov, S. N.

    2017-07-01

    Diagnostic features of a catastrophic aridization of climate, desertification, and paleoecological crisis in steppes of the Lower Volga region have been identified on the basis of data on the morphological, chemical, and microbiological properties of paleosols under archeological monuments (burial mounds) of the Middle Bronze Age. These processes resulted in a certain convergence of the soil cover with transformation of zonal chestnut (Kastanozems) paleosols and paleosolonetzes (Solonetz Humic) into specific chestnut-like eroded saline calcareous paleosols analogous to the modern brown desert-steppe soils (Calcisols Haplic) that predominated in this region 4300-3800 years ago.1 In the second millennium BC, humidization of the climate led to the divergence of the soil cover with secondary formation of the complexes of chestnut soils and solonetzes. This paleoecological crisis had a significant effect on the economy of the tribes in the Late Catacomb and Post-Catacomb time stipulating their higher mobility and transition to the nomadic cattle breeding.

  6. Hypoplastic left heart syndrome

    Science.gov (United States)

    HLHS; Congenital heart - hypoplastic left heart; Cyanotic heart disease - hypoplastic left heart ... Hypoplastic left heart is a rare type of congenital heart disease. It is more common in males than in ...

  7. Upper Eyelid Retraction After Periorbital Trauma

    OpenAIRE

    2008-01-01

    We report four unusual cases of upper eyelid retraction following periorbital trauma. Four previously healthy patients were evaluated for unilateral upper eyelid retraction following periorbital trauma. A 31-year-old man (Case 1) and a 24-year-old man (Case 2) presented with left upper eyelid retraction which developed after blow-out fractures, a 44-year-old woman (Case 3) presented with left upper eyelid retraction secondary to a periorbital contusion that occurred one week prior, and a 56-y...

  8. Upper Endoscopy

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    Full Text Available ... Upper Endoscopy (EGD) The Latest Practice Guidelines Technology Reviews Articles Videos Events & Products Ensuring the Safety of ... S0016-5107(98)70268-8 View more Technology Reviews Members-only content Document Link: ASGE Leading Edge: ...

  9. Upper Endoscopy

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    Full Text Available ... Upper Endoscopy (EGD) The Latest Practice Guidelines Technology Reviews Articles Videos Events & Products Ensuring the Safety of ... S0016-5107(98)70268-8 View more Technology Reviews Members-only content Document Link: ASGE Leading Edge: ...

  10. Upper Endoscopy

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    Full Text Available ... EGD) Upper Endoscopy (EGD) The Latest Practice Guidelines Technology Reviews Articles Videos Events & Products Ensuring the Safety ... 1016/S0016-5107(98)70268-8 View more Technology Reviews Members-only content Document Link: ASGE Leading ...

  11. Upper Endoscopy

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    Full Text Available ... EGD) Upper Endoscopy (EGD) The Latest Practice Guidelines Technology Reviews Articles Videos Events & Products Ensuring the Safety ... 1016/S0016-5107(98)70268-8 View more Technology Reviews Members-only content Document Link: ASGE Leading ...

  12. Upper Endoscopy

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    Full Text Available ... Staff Rent IT&T Facility Gastrointestinal Glossary of Terms Home / Clinical Topics / Procedures F - Z / Upper Endoscopy ( ... Facebook ASGE on Youtube ASGE on Twitter Privacy | Terms of Use | © 2017 American Society for Gastrointestinal Endoscopy

  13. “Little Cogs of the Huge State Machine”. Formation and Development of Nursery Care System in 1920-1930s (on the Materials of the Republic of Germans in the Volga Region

    Directory of Open Access Journals (Sweden)

    Lyudmila A. Falaleeva

    2017-06-01

    Full Text Available The article is devoted to insufficiently studied aspects of the history of the Volga Germans. On the basis of the documents kept in the State Historical Archives of the Volga Germans, the author reveals the peculiarities of formation and development of the nursery care system in the USSR of Volga Germans in 1920-1930s. In the article measures on preparing medical and pedagogical staff are reviewed. It was concluded that the establishment of nurseries led not only to improvement of children’s health, but also released labour force of peasant women for the national economy. The author found that the first information about the opening of nurseries in the German autonomy is related to 1921 – from that moment an active process of formation of the Soviet system of nursery facilities in the region had begun. Due to large-scale famine of the early 1920s, existence of nurseries was under threat, despite the active government policy on this issue. Only in 1925 the matter of protection of motherhood and childhood stabilized, and with active support of female population of Volga Germans started to rapidly gain the momentum. In the mid-1930s more than 5 000 children in ASSR NP became pupils of nurseries. All the year round a woman was able to break free from the hassle of taking care of children and the young generation from the first years of life was brought up under state control. The operation of nurseries caused both a need and an interest among German women, in contrast to many other social projects of the Soviet power against women. The author concludes that the mass distribution of nurseries in the territory of ASSR NP and their introduction into the social environment, allows considering them as significant administrative practices aimed at the destruction of traditional ways of life of women, effective even in the national autonomy.

  14. The Problem of the Golden Horde “Imperial Culture” Formation and its Role as an Area-Forming Factor for the Peoples of the Ural-Volga Region

    Directory of Open Access Journals (Sweden)

    Ivanov Vladimir A.

    2013-06-01

    Full Text Available The problem of formation and existence of a common imperial culture of the Golden Horde and the degree of influence of this state on the culture of neighboring peoples inhabiting the Urals and the Volga regions. The results of the comparison between the culture of the Golden Horde cities and the nomadic steppe population demonstrate significant differences and a very low degree of interpenetration of their traditions. In the material culture of the peoples of the Volga-Kama and the Cis-Urals regions, drawn into the Golden Horde sphere of influence (the Mari, the Udmurts, the Mordvinians, the Bashkirs, the local tradition was kept intact, items produced in the Golden Horde were as rarely met as imported ones, and did not affect the local production of weapons, jewelry, etc. All this makes it possible to conclude that the concept of "imperial culture of the Golden Horde" is an artificial one, and its influence on the cultures of the neighboring peoples of the Volga-Ural region cannot be traced on the basis of archaeological materials.

  15. Left Supraclavicular Spindle Cell Lipoma

    OpenAIRE

    Oladejo Olaleye; Bertram Fu; Ram Moorthy; Charles Lawson; Myles Black; David Mitchell

    2010-01-01

    Background. Spindle cell lipoma (SCL) is a benign lipomatous tumour, typically occurring in the posterior neck, shoulder or upper back of elderly males. They compose of fat, CD34 positive spindle cells, and ropey collagen on a myxoid matrix. This case highlights a rare presentation of SCL and the need for pre-operative diagnosis. Case Report. A 63-year-old gentleman presented with a pre-existing left supraclavicular mass that had recently increased in size. FNA and CT Scans were performed and...

  16. Analysis of genetic variants of class II cytokine and their receptor genes in psoriasis patients of two ethnic groups from the Volga-Ural region of Russia.

    Science.gov (United States)

    Galimova, Elvira; Akhmetova, Vita; Latipov, Boris; Kingo, Külli; Rätsep, Ranno; Traks, Tanel; Kõks, Sulev; Khusnutdinova, Elza

    2012-10-01

    The molecular basis of pathogenesis of psoriasis remains unclear, but one unifying hypothesis of disease aetiology is the cytokine network model. The class II cytokines (CF2) and their receptors (CRF2) are all involved in the inflammatory processes and single nucleotide polymorphisms (SNPs) in respective genes have been associated with psoriasis in a previous study of the Estonian population. We performed a replication study of 47 SNPs in CF2 and CRF2 genes in independent cohorts of psoriasis patients of two ethnic groups (Russians and Bashkirs) from the Volga-Ural region of Russia. DNA was obtained from 395 psoriasis patients of two ethnic groups from the Volga-Ural region of Russia and 476 ethnically matched controls. 47 SNPs in the loci of the genes encoding Class II cytokines and their receptors were selected by SNPbrowser version 3.5. Genotyping was performed using the SNPlex™ (Applied Biosystems) platform. The genetic variant rs30461 previously associated in original case-control study in Estonians, was also associated in Russians (corrected P-value (Pc=0.008, OR=0.44), but did not reach statistical significance in the Bashkir population. Additionally, the haplotype analysis provided that CC haplotype formed by the SNPs rs30461 and rs955155 had a protective effect in Russians (Pc=0.0024, OR=0.44), supporting the involvement of this locus in the protection against psoriasis. Combined meta-analysis of three populations, including 943 psoriasis patients and 812 healthy controls, showed that the IL29 rs30461 C-allele was not associated with decreased risk of psoriasis (P=0.165, OR=0.68). Moreover, stratification of studies by ethnicity revealed a significant association in the European cohort (P=9.506E-006, OR=0.53). Therefore, there is no overall evidence of association between psoriasis and SNP rs30461 of the IL29 gene, but there is some evidence to suggest that an association exists in Europeans. However, this current concept should be considered as

  17. MEDICAL AND DEMOGRAPHIC CONSEQUENCES OF CLIMATE CHANGE AND THE ASSESSMENT OF COMFORT LEVEL OF WEATHER-CLIMATIC CONDITIONS IN THE VOLGA FEDERAL DISTRICT

    Directory of Open Access Journals (Sweden)

    Yuri P. Perevedentsev

    2016-01-01

    Full Text Available The paper provides a brief analysis of research on the impact of global climate change on human health. Using Tatarstan as an example, the paper discusses medical and demographic consequences of the extreme heat wave of the summer of 2010. Assessment of the Volga Federal District (VFD bioclimate conducted with the help of certain biometeorological parameters allowed evaluating modern global and regional changes of weather-climatic conditions. The main emphasis was placed on spatial and temporal analysis of both the integral pathogenicity index (I and its individual components for the district territory. In VFD, aggravating weather conditions increase from southwest to northeast. Summer months are associated with comfort weather conditions. In winter, the air temperature pathogenicity index and interdiurnal temperature fluctuations contribute the greatest to I; in summer, the role of cloudiness and humidity pathogenicity indices increases. The contribution of wind speed and interdiurnal pressure fluctuations to I is insignificant in all seasons. Analysis of the frequency distribution of I showed that comfort weather conditions (over 50 % of cases occur in May–August, aggravating weather conditions occur in March-Appril, and harsh weather conditions in more than 50 % of cases occur in January–February and November–December. Calculation of biometeorological indices allows forecasting risk of thermal hazard under extreme meteorological conditions.

  18. Development of technology for washed minced fish production from low-profit objects of fishing in the Volga-Caspian Basin

    Directory of Open Access Journals (Sweden)

    Mukatova M. D.

    2016-09-01

    Full Text Available The objects of the study are as follows: rudd and goldfish, samples of food minced made of them without washing, after single and double washings. To study the organoleptic and physico-chemical parameters the conventional methods of the fishing industry have been used. At the LLC "Astrakhan fisheries" two experimental batches of minced rudd and goldfish with double washing by water using a food additive "Omfresh plus" have been made in the amount of 1.0 % by weight of the meat. The yield of washed minced food from rudd is 41.4 %, from silver carp – 41.0 %. Some decrease in water content, water-holding capacity and formalin-titratable nitrogen in minced fish after each washing step has been established. Studying the organoleptic characteristics has shown that the frozen minced briquettes are cuboids, have clean surface with the presence of minor irregularities, colour – light gray, dense texture. On physical and chemical parameters the food washed mince correspond to GOST R 55505–2013 "Frozen food fish forcemeat. Specifications". Water content is 79–82 %, sodium chloride – 0,17–0,35 %, and water-holding capacity – at over 50 %. The proven technology of manufacturing washed minced from goldfish and rudd can be put into production for the purpose of deep processing of unprofitable species of the Volga-Caspian Basin and getting washed minced food and culinary products based on it.

  19. Pulmonary inflammatory myofibroblastic tumor invading the left atrium.

    Science.gov (United States)

    Berman, Marius; Georghiou, Georgios P; Schonfeld, Tommy; Feinmesser, Meora; Horev, Gadi; Vidne, Bernardo A; Saute, Milton

    2003-08-01

    Inflammatory myofibroblastic tumor is a rare solid tumor that most often affects children and young adults. Although benign, the tumor may be very aggressive locally. We describe a 9-year-old boy with primary inflammatory myofibroblastic tumor of the left upper lobe involving the left atrium.

  20. Benign Multicystic Mesothelioma in the Left Round Ligament: Case Report

    Energy Technology Data Exchange (ETDEWEB)

    Bae, So Young; Yi, Boem Ha; Lee, Hae Kyung; Park, Seong Jin; Cho, Gyu Seok; Kwak, Jeong Ja [Soonchunhyang University Bucheon Hospital, Bucheon (Korea, Republic of)

    2010-02-15

    Benign multicystic mesothelioma is a rare mesothelial lesion that forms multicystic masses in the upper abdomen, pelvis, and retroperitoneum. Most cases have a benign course. We present the ultrasound and MR findings of benign multicystic mesothelioma in the left round ligament, which caused a left inguinal hernia in a 46-year-old woman.

  1. Left bronchial artery arising from a replaced left hepatic artery in a patient with massive hemoptysis

    Energy Technology Data Exchange (ETDEWEB)

    Khil, Eun Kyung; Lee, Jae Myung [Dept. of Radiology, Soonchunhyang University College of Medicine, Bucheon Hospital, Bucheon (Korea, Republic of)

    2015-09-15

    A 70-year-old man with a 3-year history of bronchiectasis presented with massive hemoptysis that had lasted for 3 days. In our attempt to perform bronchial artery embolization, upper abdominal angiography was required to locate the left bronchial artery, which in this case was of anomalous origin, arising from a replaced left hepatic artery, which arose from the left gastric artery-a very unusual anatomical variant. We performed embolization with polyvinyl alcohol particles, and the patient's symptoms resolved completely, with no additional complications after conservative treatment.

  2. Selección de condiciones óptimas de biodegradación de crudo pesado de petróleo de Sheremetyevo en la Cuenca del Río Volga por medio de consorcios bacterianos

    OpenAIRE

    Bautista Espinosa, Hugo

    2014-01-01

    El presente estudio propone medidas biocorrectivas o de biorremediación, las cuales consisten principalmente en el uso de los microorganismos naturales (bacterias) existentes en el medio para descomponer o degradar sustancias peligrosas (crudo pesado y sus derivados) en sustancias de carácter menos tóxico o bien inocuas para el medio ambiente y la salud humana. Las medidas biocorrectoras se emplearon a escala piloto en la descontaminación de aguas del Río Volga afectadas por derrames de crudo...

  3. Welfare and Social Security in the USSR in the Late 1950s – Early 1980s (on the Material of the Lower Volga Region

    Directory of Open Access Journals (Sweden)

    Gumenyuk Aleksey

    2014-12-01

    Full Text Available This paper is devoted to the analysis of the main directions of the social support for workers in the Lower Volga region in the late 1950s – early 1980s. The special attention is paid to creating the universal system of pension insurance for the Soviet people. The novelty of the study consists in the use of historical and anthropological approach allowing to trace the influence of the change in insurance bodies functioning on the life quality of pensioners and disabled people. The first part of the article is devoted to the period of 1953–1964, and it explores the ways of improving the quality of care of the disabled. The particular attention is paid to the study of the positive and negative results of social bodies’ work at the regional level. The ways of improving the quality of state social support for disabled people in 1965–1985 (the new stage of Soviet reforms is also investigated. The material in the article is organized according to the following scheme: firstly, the author analyzes the basic legislative acts of the State party in the field of social security, and, secondly, he describes the ways and the results of their implementation in the provinces. The author concludes that by Spring of 1985 the total social pension system was established in the country. The evidence proves that this system lacked the individual approach and the interests of some people were often not taken into account. This study is based on the vast set of factual materials from the archives, published sources and periodical press. The various aspects of this problem can be used in educational practice.

  4. Comparison of Toxicity of Sediments from Rivers with Different Levels of Anthropogenic Load (Middle Volga Region, Russia Based on Elutriate and Whole Sediment Tests

    Directory of Open Access Journals (Sweden)

    N.Yu. Stepanova

    2016-09-01

    Full Text Available Description of chemical characteristics and toxicity testing of whole sediment and elutri-ate have been performed with 35 samples taken during the monitoring of rivers in the Middle Volga region (Tatarstan, Russia in 2013. The locations analyzed are sites associated with agriculture, forestry, and petroleum hydrocarbons (oil production. The toxicity tests include: (1 Chlorella vulgaris (algal elutriate test, (2 Paramecium caudatum (ciliate elutriate test, (3 Daphnia magna (cladoceran whole sediment toxicity test, and (4 Heterocypris incongruens (ostracod whole sediment toxicity test. The concentrations of metals in 43% of sediment samples have been found to exceed probable effect concentration sediment quality guidelines (SQGs. However, the concentrations of polycyclic aromatic hydrocarbons (PAHs and organochlorine pesticides have turned out to be below SQGs in most sites. The correlation analysis has shown metal toxicity to daphnid reproduction and ostracod growth (R2 = 0.34–0.64 and ammonia (R2 = 0.49–0.54. A higher percentage of samples have shown toxicity in the whole sediment tests (86% compared to the elutriate tests (54%. A total of 91% of samples have demonstrated toxicity for at least one species. Toxicity has been most frequently observed for daphnid reproduction (83% of samples and ostracod growth (56% of samples compared to daphnid (23% survival, ostracod (11% survival, and ciliate reproduction (54% or algal growth (54%. The most polluted sediments have been registered in the area of oil production. The comparison of toxicity of the samples from different types of areas has indicated that 100% of samples from the oil production area, 94% of samples from the agricultural area, and 50% of samples from the forest area were toxic to at least one test organism.

  5. X-ray screening of the artificially deformed skulls from the Middle Bronze Age of the Low Volga region (paleopathology aspect

    Directory of Open Access Journals (Sweden)

    Pererva Evgenii Vladimirovich

    2013-11-01

    Full Text Available The impact of the deforming structure on the human skull is one of the most challenging and debated questions in modern archeology and anthropology related to artificial deformation of the skull. This is precisely why the present study attempts to study the pathological artificially deformed skulls of representatives of the Catacomb culture originating from burial mound in the Lower Volga region. The analysis of the bone material was carried out with the use of X-ray method of the frontal and lateral views. Thirteen radiographs of skulls with traces of deliberate artificial deformation were examined. The skull shapes, structure of the skull calvarial bones, state of the cranial sutures, signs of intracranial hypertension, and symptoms of vascular and endocrine pathologies were explored and evaluated. The study discovered that Catacomb culture bearers used a variety of methods of skull deformation. Front occipital, occipital ring strain and conventional acrocephaly deformation modes were revealed. The viability and compatibility with normal human activity of artificial skull deformation was observed. In the childhood and newborn periods, individuals have applied constrictive and restrictive devices, trusses andother appliancesfor a few years, their impact couldresultin the intracranial hypertension syndrome, as well as in problems with cranial sutures obliteration. It is very much likely that the use of strain could stimulate the development of the internal frontal hyperostosis (Morgagni's disease which contributed to the emergence of endocrine abnormities in humans. The increased trauma rate of skeleton bones was observed in population of the Middle Bronze Age, as well as ear diseases which makes us once again address the issue of social and cultural phenomenon of intentional artificial deformation of the head tradition.

  6. Left atrial volume index

    DEFF Research Database (Denmark)

    Poulsen, Mikael K; Dahl, Jordi S; Henriksen, Jan Erik;

    2013-01-01

    To determine the prognostic importance of left atrial (LA) dilatation in patients with type 2 diabetes (T2DM) and no history of cardiovascular disease.......To determine the prognostic importance of left atrial (LA) dilatation in patients with type 2 diabetes (T2DM) and no history of cardiovascular disease....

  7. Left supraclavicular spindle cell lipoma.

    Science.gov (United States)

    Olaleye, Oladejo; Fu, Bertram; Moorthy, Ram; Lawson, Charles; Black, Myles; Mitchell, David

    2010-01-01

    Background. Spindle cell lipoma (SCL) is a benign lipomatous tumour, typically occurring in the posterior neck, shoulder or upper back of elderly males. They compose of fat, CD34 positive spindle cells, and ropey collagen on a myxoid matrix. This case highlights a rare presentation of SCL and the need for pre-operative diagnosis. Case Report. A 63-year-old gentleman presented with a pre-existing left supraclavicular mass that had recently increased in size. FNA and CT Scans were performed and results discussed in the mutidisciplinary team meeting. Excisional biopsy was recommended. Radiology. CT neck showed a left supraclavicular mass of fatty density with fine internal septations. A low-grade liposarcoma could not be excluded. Histopathology. FNA was indeterminate. Histology of specimen showed bland spindle cells with no evidence of malignancy. Immuno-histochemistry showed SCL with CD34 positivity and negative staining on CDK4 and p16. Management. Excision biopsy of the mass was performed which was technically difficult as the mass invaginated around the brachial plexus. The patient recovered well post-operatively with no neurological deficits. Conclusion. Spindle cell lipoma is a rare benign tumour and a pre-operative diagnosis based on the clinical context, imaging and immuno-histochemistry is crucial to management.

  8. Review of the book: Bogachev A.V., Frantsuzov D.A. Costume of the proto–Bulgars of the Middle Volga region: the end of the VII – the beginning of the X century (Samara, 2012, 350 p.

    Directory of Open Access Journals (Sweden)

    Liphanov Nikolay A.

    2014-06-01

    Full Text Available Methodological and source study aspects of the research devoted to the costume of early medieval cattle-breeding population of the Middle Volga region carried out in the monograph by A.V. Bogachev and D.A. Frantsuzov are examined in the review. This aspect of material culture is considered by the authors on the basis of written, visual and material data. However, it should be noted that the information from the written sources analyzed appeared insufficient to characterize the nomadic costume in general, lacking details regarding the clothing of the early medieval Bulgars of the Middle Volga region in particular. The visual sources are more informative, but the authors have not used them in total, ignoring a lot of important materials. Besides, the authors of the book have discarded a significant array of archaeological data, and the analysis of the materials used bears a rather superficial and careless character. The fact that the majority archaeological sites considered in the book have been attributed to the Proto-Bulgars (Bulgars attests to a subjective and badly-reasoned stance. The study is largely secondary: it is based upon previous works by A.V. Bogachev and repeats his mistakes and errors, which have already received a negative appraisal from experts. The author of the review concludes that the study by A.V. Bogachev and D.A. Frantsuzov has been carried out on a low methodological level, insufficient to consider the monograph under consideration a qualitative research

  9. Book review: Bogachev A.V., Frantsuzov D.A. Costume of the Proto-Bulgars of the Middle Volga region: late 7th – early 10th century (Samara: SGTU, 2012, 350 pp.

    Directory of Open Access Journals (Sweden)

    Liphanov Nikolay A.

    2014-06-01

    Full Text Available Methodological and source study aspects of the research devoted to the costume of early medieval cattle-breeding population of the Middle Volga region carried out in the monograph by A.V. Bogachev and D.A. Frantsuzov are examined in the review. This aspect of material culture is considered by the authors on the basis of written, visual and material data. However, it should be noted that the information from the written sources analyzed appeared insufficient to characterize the nomadic costume in general, lacking details regarding the clothing of the early medieval Bulgars of the Middle Volga region in particular. The visual sources are more informative, but the authors have not used them in total, ignoring a lot of important materials. Besides, the authors of the book have discarded a significant array of archaeological data, and the analysis of the materials used bears a rather superficial and careless character. The fact that the majority archaeological sites considered in the book have been attributed to the Proto-Bulgars (Bulgars attests to a subjective and badly-reasoned stance. The study is largely secondary: it is based upon previous works by A.V. Bogachev and repeats his mistakes and errors, which have already received a negative appraisal from experts. The author of the review concludes that the study by A.V. Bogachev and D.A. Frantsuzov has been carried out on a low methodological level, insufficient to consider the monograph under consideration a qualitative research.

  10. Left heart catheterization

    Science.gov (United States)

    Catheterization - left heart ... to help guide the catheters up into your heart and arteries. Dye will be injected into your ... in the blood vessels that lead to your heart. The catheter is then moved through the aortic ...

  11. Left Ventricular Hypertrophy

    Science.gov (United States)

    ... the chamber itself also increases. The enlarged heart muscle loses elasticity and eventually may fail to pump with as much force as needed. Left ventricular hypertrophy is more common in people who have uncontrolled ...

  12. Left-Handed Connections.

    Science.gov (United States)

    Lipson, Alice M.

    1984-01-01

    The following aspects of left-handedness are discussed: etiology and associated learning and developmental disorders; right-brain dominance and how to detect it; adaptations to the physical learning environment; behavior patterns; and teaching techniques. (JW)

  13. Hypoplastic left heart syndrome (image)

    Science.gov (United States)

    Hypoplastic left heart syndrome is a congenital heart condition that occurs during the development of the heart in the ... womb. During the heart's development, parts of the left side of the heart (mitral valve, left ventricle ...

  14. The Images of the Volga River and the Neva River in Russian Poetry during the Napoleonic War%拿破仑战争时期俄国诗歌中的伏尔加河与涅瓦河形象

    Institute of Scientific and Technical Information of China (English)

    鸟山祐介; 贾茜

    2012-01-01

    In the Russian culture, the Volga River is usually regarded as the symbol of Russia and its people; but on the other hand, along the Volga have lived many ethnic groups for a long time, including non-Slavs and non-Christians. Correspondingly, in the 18th-century poetry, the image of the Volga was related to the ethnic groups, i.e. the Volga was not only a river of " Russia" whereas the Neva was treated as a symbol of Russia. After the Napoleonic War, the national consciousness has removed the alien features of the Volga in literary works and turned it into a " mother river". On the contrary, the Neva has gradually lost its function of representing the Russian nationality.%在俄罗斯文化中,伏尔加河常常被认作俄罗斯和俄罗斯人民的象征,但另一方面,伏尔加河沿岸多年以来就是个多民族地区,包括很多非斯拉夫人和非基督徒。相应地,在18世纪的诗歌中,伏尔加河的形象也往往与这些民族的存在联系在一起,即,她并不仅仅是"俄罗斯"的河。而涅瓦河则经常被作为俄罗斯的象征。拿破仑战争之后,民族意识使伏尔加河在文学的书写中渐渐被去异族化,变成"母亲河",而涅瓦河逐渐失去了指代俄罗斯民族的功能。

  15. Artificial Left Ventricle

    CERN Document Server

    Ranjbar, Saeed; Meybodi, Mahmood Emami

    2014-01-01

    This Artificial left ventricle is based on a simple conic assumption shape for left ventricle where its motion is made by attached compressed elastic tubes to its walls which are regarded to electrical points at each nodal .This compressed tubes are playing the role of myofibers in the myocardium of the left ventricle. These elastic tubes have helical shapes and are transacting on these helical bands dynamically. At this invention we give an algorithm of this artificial left ventricle construction that of course the effect of the blood flow in LV is observed with making beneficiary used of sensors to obtain this effecting, something like to lifegates problem. The main problem is to evaluate powers that are interacted between elastic body (left ventricle) and fluid (blood). The main goal of this invention is to show that artificial heart is not just a pump, but mechanical modeling of LV wall and its interaction with blood in it (blood movement modeling) can introduce an artificial heart closed to natural heart...

  16. PERSISTENT LEFT SUPERIOR VENACAVA

    Directory of Open Access Journals (Sweden)

    Devinder Singh

    2014-05-01

    Full Text Available A Persistent Left Superior Venacava (PLSVC is the most common variation of the thoracic venous system and rare congenital vascular anomaly and is prevalent in 0.3% of the population. It may be associated with other cardiovascular abnormalities including atrial septal defect, bicuspid aortic valve, coarctation of aorta, coronary sinus ostial atresia, and cor triatriatum. Incidental rotation of a dilated coronary sinus on echocardiography should raise the suspicion of PLSVC. The diagnosis should be confirmed by saline contrast echocardiography. Condition is usually asymptomatic. Here we present a rare case of persistent left superior vena cava presented in OPD with dyspnoea & palpitations.

  17. Left atrial appendage occlusion

    Directory of Open Access Journals (Sweden)

    Ahmad Mirdamadi

    2013-01-01

    Full Text Available Left atrial appendage (LAA occlusion is a treatment strategy to prevent blood clot formation in atrial appendage. Although, LAA occlusion usually was done by catheter-based techniques, especially percutaneous trans-luminal mitral commissurotomy (PTMC, it can be done during closed and open mitral valve commissurotomy (CMVC, OMVC and mitral valve replacement (MVR too. Nowadays, PTMC is performed as an optimal management of severe mitral stenosis (MS and many patients currently are treated by PTMC instead of previous surgical methods. One of the most important contraindications of PTMC is presence of clot in LAA. So, each patient who suffers of severe MS is evaluated by Trans-Esophageal Echocardiogram to rule out thrombus in LAA before PTMC. At open heart surgery, replacement of the mitral valve was performed for 49-year-old woman. Also, left atrial appendage occlusion was done during surgery. Immediately after surgery, echocardiography demonstrates an echo imitated the presence of a thrombus in left atrial appendage area, although there was not any evidence of thrombus in pre-pump TEE. We can conclude from this case report that when we suspect of thrombus of left atrial, we should obtain exact history of previous surgery of mitral valve to avoid misdiagnosis clotted LAA, instead of obliterated LAA. Consequently, it can prevent additional evaluations and treatments such as oral anticoagulation and exclusion or postponing surgeries including PTMC.

  18. Left or Right

    Institute of Scientific and Technical Information of China (English)

    常厚飞

    2007-01-01

    In Europe people hold the fork in the left hand and the knife in the right throughout the meal, a system that is generally agreed to be more efficient than the American zigzag method. Americans hold both the fork and the knife in their right hands throughout the meal,

  19. Hypoplastic left heart syndrome

    Directory of Open Access Journals (Sweden)

    Thiagarajan Ravi

    2007-05-01

    Full Text Available Abstract Hypoplastic left heart syndrome(HLHS refers to the abnormal development of the left-sided cardiac structures, resulting in obstruction to blood flow from the left ventricular outflow tract. In addition, the syndrome includes underdevelopment of the left ventricle, aorta, and aortic arch, as well as mitral atresia or stenosis. HLHS has been reported to occur in approximately 0.016 to 0.036% of all live births. Newborn infants with the condition generally are born at full term and initially appear healthy. As the arterial duct closes, the systemic perfusion becomes decreased, resulting in hypoxemia, acidosis, and shock. Usually, no heart murmur, or a non-specific heart murmur, may be detected. The second heart sound is loud and single because of aortic atresia. Often the liver is enlarged secondary to congestive heart failure. The embryologic cause of the disease, as in the case of most congenital cardiac defects, is not fully known. The most useful diagnostic modality is the echocardiogram. The syndrome can be diagnosed by fetal echocardiography between 18 and 22 weeks of gestation. Differential diagnosis includes other left-sided obstructive lesions where the systemic circulation is dependent on ductal flow (critical aortic stenosis, coarctation of the aorta, interrupted aortic arch. Children with the syndrome require surgery as neonates, as they have duct-dependent systemic circulation. Currently, there are two major modalities, primary cardiac transplantation or a series of staged functionally univentricular palliations. The treatment chosen is dependent on the preference of the institution, its experience, and also preference. Although survival following initial surgical intervention has improved significantly over the last 20 years, significant mortality and morbidity are present for both surgical strategies. As a result pediatric cardiologists continue to be challenged by discussions with families regarding initial decision

  20. Concentric left ventricular morphology in aerobically trained kayak canoeists.

    Science.gov (United States)

    Gates, Phillip E; Campbell, Ian G; George, Keith P

    2004-09-01

    The aim of the present study was to test the hypothesis that upper body aerobically trained athletes (kayak canoeists) would have greater left ventricular wall thickness, but similar left ventricular diastolic chamber dimensions, compared with recreationally active and sedentary men. Ultrasound echocardiography was used to determine cardiac structure and function in highly trained kayak canoeists (n = 10), moderately active (n = 10) and sedentary men (n = 10). The septal and posterior left ventricular walls were approximately 0.2 cm thicker in kayak canoeists (P kayak canoeists had a concentric pattern of left ventricular adaptation to aerobic upper body training. Scaling the data to body composition indices had no effect on the outcome of the statistical analysis. There were no differences in resting Doppler left ventricular diastolic or systolic function among the groups. Ejection fraction was lower in the kayak canoeists, but the magnitude of the difference was within the normal variability for this measurement. Thus aerobically upper body trained athletes demonstrated a concentric pattern of cardiac enlargement, but resting left ventricle function was not different between athletes, moderately active and sedentary individuals.

  1. Left musculus sternalis.

    Science.gov (United States)

    Arráez-Aybar, L A; Sobrado-Perez, J; Merida-Velasco, J R

    2003-07-01

    During routine dissection in the Morphological Sciences Department II of the Universidad Complutense de Madrid, the presence of a sternalis muscle was observed in the left hemithorax of a 70-year-old male cadaver. We report on its position, relationships, and innervation, as well as its clinical relevance, indicating some guidelines for its physical examination. We also present a brief overview of the existing literature regarding the nomenclature, historical reports, and incidence of this muscle.

  2. Upper Limb Exoskeleton

    NARCIS (Netherlands)

    Rusak, Z.; Luijten, J.; Kooijman, A.

    2015-01-01

    The present invention relates a wearable exoskeleton for a user having a torso with an upper limb to support motion of the said upper limb. The wearable exoskeleton comprises a first fixed frame mountable to the torso, an upper arm brace and a first group of actuators for moving the upper arm brace

  3. Upper Limb Exoskeleton

    NARCIS (Netherlands)

    Rusak, Z.; Luijten, J.; Kooijman, A.

    2015-01-01

    The present invention relates a wearable exoskeleton for a user having a torso with an upper limb to support motion of the said upper limb. The wearable exoskeleton comprises a first fixed frame mountable to the torso, an upper arm brace and a first group of actuators for moving the upper arm brace

  4. Variant origin of thyrolingual trunk from left common carotid artery

    Directory of Open Access Journals (Sweden)

    Budhiraja V

    2010-03-01

    Full Text Available A case is reported in which there was a variant origin of thyrolingual trunk from left common carotid artery 2 cm below its bifurcation in the neck. The trunk was running forward and medially and later it was dividing into upper lingual and lower superior thyroid branches. No such artery was seen on right side.

  5. Up-and-left as a spatial cue of leadership.

    Science.gov (United States)

    Paladino, Maria Paola; Mazzurega, Mara; Bonfiglioli, Claudia

    2017-09-01

    Cues of leadership are features that signal who is (or who is expected to be) the leader in a specific context. Although their use is widespread, empirical research is scarce, especially for spatial positioning as a sign of leadership. Based on work on spatial biases, we suggest here that the upper-left corner of a page is a spatial position associated with leadership. In the present studies (N = 455), we investigated this hypothesis and showed that a layout with a photograph positioned in the upper-left corner (compared to the upper-right, lower-left, or lower-right corner) led people to infer that the person portrayed in the photograph had a leading (vs. subordinate) role in the organization. Participants also thought that the upper-left corner was the ideal spatial position to convey a leading (vs. subordinate) role in an organization. Implications of these results for symbols of leadership and spatial biases are discussed. © 2017 The British Psychological Society.

  6. Neutrosophic Left Almost Semigroup

    Directory of Open Access Journals (Sweden)

    Mumtaz Ali

    2014-06-01

    Full Text Available In this paper we extend the theory of neutrosophy to study left almost semigroup shortly LAsemigroup. We generalize the concepts of LA-semigroup to form that for neutrosophic LA-semigroup. We also extend the ideal theory of LA-semigroup to neutrosophy and discuss different kinds of neutrosophic ideals. We also find some new type of neutrosophic ideal which is related to the strong or pure part of neutrosophy. We have given many examples to illustrate the theory of neutrosophic LA-semigroup and display many properties of neutrosophic LA-semigroup in this paper.

  7. Upper Kenai Corridor Study

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Upper Kenai Corridor study describes and evaluates the Upper Kenai River and the land which embraces it. It also places the river corridor in its regional...

  8. Bilateral upper eyelid retraction caused by topical bimatoprost therapy.

    Science.gov (United States)

    Noma, Kazunami; Kakizaki, Hirohiko

    2012-01-01

    The authors report a case with upper eyelid retraction caused by topical bimatoprost therapy. Topical bimatoprost 0.03% was administered to a 69-year-old woman with bilateral normal-tension glaucoma. It was first administered to the left eye, and 3 weeks later, therapy on the right side of the eye was initiated. One week after the initiation of therapy on the right side, right upper eyelid retraction occurred, and 63 days after starting treatment on the left side (42 days after initiation on the right side), conspicuous bilateral upper eyelid retraction was observed. Bimatoprost instillation was then stopped and the medication was switched to latanoprost 0.005%. Upper eyelid retraction was reversed to normal levels approximately 1 week after cessation of bimatoprost therapy. In conclusion, a rare case of upper eyelid retraction caused by topical bimatoprost therapy, which was reversed after discontinuation of the medication, is reported.

  9. Upper limb arterial thromboembolism

    DEFF Research Database (Denmark)

    Andersen, L V; Lip, Gregory Y.H.; Lindholt, J S;

    2013-01-01

    The aim of this review is to focus on risk factors, risk-modifying drugs and prognosis for upper limb arterial thromboembolism, and the relationship between upper limb arterial thromboembolism and atrial fibrillation (AF).......The aim of this review is to focus on risk factors, risk-modifying drugs and prognosis for upper limb arterial thromboembolism, and the relationship between upper limb arterial thromboembolism and atrial fibrillation (AF)....

  10. Your left-handed brain

    OpenAIRE

    2014-01-01

    While most people prefer to use their right hand to brush their teeth, throw a ball, or hold a tennis racket, left-handers prefer to use their left hand. This is the case for around 10% of all people. There was a time (not so long ago) when left-handers were stigmatized (see Glossary) in Western (and other) communities: it was considered a bad sign if you were left-handed, and left-handed children were often forced to write with their right hand. This is nonsensical: there is nothing wrong wi...

  11. Left Artinian Algebraic Algebras

    Institute of Scientific and Technical Information of China (English)

    S. Akbari; M. Arian-Nejad

    2001-01-01

    Let R be a left artinian central F-algebra, T(R) = J(R) + [R, R],and U(R) the group of units of R. As one of our results, we show that, if R is algebraic and char F = 0, then the number of simple components of -R = R/J(R)is greater than or equal to dimF R/T(R). We show that, when char F = 0 or F is uncountable, R is algebraic over F if and only if [R, R] is algebraic over F. As another approach, we prove that R is algebraic over F if and only if the derived subgroup of U(R) is algebraic over F. Also, we present an elementary proof for a special case of an old question due to Jacobson.

  12. Left ventricular apical diseases.

    Science.gov (United States)

    Cisneros, Silvia; Duarte, Ricardo; Fernandez-Perez, Gabriel C; Castellon, Daniel; Calatayud, Julia; Lecumberri, Iñigo; Larrazabal, Eneritz; Ruiz, Berta Irene

    2011-08-01

    There are many disorders that may involve the left ventricular (LV) apex; however, they are sometimes difficult to differentiate. In this setting cardiac imaging methods can provide the clue to obtaining the diagnosis. The purpose of this review is to illustrate the spectrum of diseases that most frequently affect the apex of the LV including Tako-Tsubo cardiomyopathy, LV aneurysms and pseudoaneurysms, apical diverticula, apical ventricular remodelling, apical hypertrophic cardiomyopathy, LV non-compaction, arrhythmogenic right ventricular dysplasia with LV involvement and LV false tendons, with an emphasis on the diagnostic criteria and imaging features. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s13244-011-0091-6) contains supplementary material, which is available to authorized users.

  13. [Left-handedness and health].

    Science.gov (United States)

    Milenković, Sanja; Belojević, Goran; Kocijancić, Radojka

    2010-01-01

    Hand dominance is defined as a proneness to use one hand rather than another in performing the majority of activities and this is the most obvious example of cerebral lateralization and an exclusive human characteristic. Left-handed people comprise 6-14% of the total population, while in Serbia, this percentage is 5-10%, moving from undeveloped to developed environments, where a socio-cultural pressure is less present. There is no agreement between investigators who in fact may be considered a left-handed person, about the percentage of left-handers in the population and about the etiology of left-handedness. In the scientific literature left-handedness has been related to health disorders (spine deformities, immunological disorders, migraine, neurosis, depressive psychosis, schizophrenia, insomnia, homosexuality, diabetes mellitus, arterial hypertension, sleep apnea, enuresis nocturna and Down Syndrome), developmental disorders (autism, dislexia and sttutering) and traumatism. The most reliable scientific evidences have been published about the relationship between left-handedness and spinal deformities in school children in puberty and with traumatism in general population. The controversy of other results in up-to-now investigations of health aspects of left-handedness may partly be explained by a scientific disagreement whether writing with the left hand is a sufficient criterium for left-handedness, or is it necessary to investigate other parameters for laterality assessment. Explanation of health aspects of left-handedness is dominantly based on Geschwind-Galaburda model about "anomalous" cerebral domination, as a consequence of hormonal disbalance.

  14. Retroaortic left renal vein joining the left common iliac vein

    Energy Technology Data Exchange (ETDEWEB)

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

    2000-11-01

    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.)

  15. Neovascularization in Left Atrial Myxoma

    Science.gov (United States)

    Dubey, Laxman; Chaurasia, Amit Kumar

    2012-01-01

    Abstract We report a case with a left atrial mass who underwent coronary angiography to rule out coronary artery disease. Coronary angiography revealed an anomalous tortuous vascular structure originating from the left circumflex coronary artery to the left atrial tumor suggestive of neovascularization. Preoperative coronary angiography is useful for coronary artery evaluation and also provides additional information regarding the feeding vessel supplying the mass. PMID:24757609

  16. Parcellation of left parietal tool representations by functional connectivity

    Science.gov (United States)

    Garcea, Frank E.; Z. Mahon, Bradford

    2014-01-01

    Manipulating a tool according to its function requires the integration of visual, conceptual, and motor information, a process subserved in part by left parietal cortex. How these different types of information are integrated and how their integration is reflected in neural responses in the parietal lobule remains an open question. Here, participants viewed images of tools and animals during functional magnetic resonance imaging (fMRI). K-means clustering over time series data was used to parcellate left parietal cortex into subregions based on functional connectivity to a whole brain network of regions involved in tool processing. One cluster, in the inferior parietal cortex, expressed privileged functional connectivity to the left ventral premotor cortex. A second cluster, in the vicinity of the anterior intraparietal sulcus, expressed privileged functional connectivity with the left medial fusiform gyrus. A third cluster in the superior parietal lobe expressed privileged functional connectivity with dorsal occipital cortex. Control analyses using Monte Carlo style permutation tests demonstrated that the clustering solutions were outside the range of what would be observed based on chance ‘lumpiness’ in random data, or mere anatomical proximity. Finally, hierarchical clustering analyses were used to formally relate the resulting parcellation scheme of left parietal tool representations to previous work that has parcellated the left parietal lobule on purely anatomical grounds. These findings demonstrate significant heterogeneity in the functional organization of manipulable object representations in left parietal cortex, and outline a framework that generates novel predictions about the causes of some forms of upper limb apraxia. PMID:24892224

  17. Left ventricle to left atrium shunt via a paravalvular abscess.

    Science.gov (United States)

    Gasparovic, H; Smalcelj, A; Brida, M

    2009-10-01

    Intracardiac fistulas are rare complications of infective endocarditis that contribute to the complexity of surgical management, and impose an additional hemodynamic burden on the already challenged heart. We report on a case of successful surgical management of a paravalvular communication between the left ventricle and the left atrium via an abscess cavity. Georg Thieme Verlag KG Stuttgart. New York.

  18. Principally Left Hereditary and Principally Left Strong Radicals

    Institute of Scientific and Technical Information of China (English)

    S. Tumurbat; R. Wiegandt

    2001-01-01

    A radical γ is normal if and only if γ is principally left hereditary and principally left strong (i.e., γ(L) = L e A and Lz ∈γ for all z ∈ L imply L γ(A)). Let a radical γ satisfy that A°∈γ and S° A° imply S°∈γ.Then γ is a hereditary normal radical if and only if γ is principally left strong and γ {A | (A, +,◇a) ∈γ a ∈ A}, where the multiplication ◇a is defined by x ◇a y = xay. The Behrens radical class B is the largest principally left hereditary subclass of the Brown-McCoy radical class G. Neither3 nor G is principally left strong.

  19. Transconjunctival upper blepharoplasty.

    Science.gov (United States)

    Januszkiewicz, J S; Nahai, F

    1999-03-01

    Transconjunctival lower lid blepharoplasty now has an established role as an option in rejuvenation of the lower eyelid. Transconjunctival upper lid blepharoplasty, or transconjunctival removal of medial upper eyelid fat, also has a role in rejuvenation of the upper eyelid. However, this is a rather limited role. We have found this approach safe and efficacious as a primary as well as a secondary procedure for removal of excess medial upper eyelid fat. We report on 20 patients who have undergone this operation: 5 as a primary procedure and 15 as secondary. There were no complications, no revisions, and the patients have been uniformly happy with their results.

  20. The Management of Near-Fatal Hemoptysis with Left Secondary Carinal Y Stent

    Directory of Open Access Journals (Sweden)

    Levent Dalar

    2014-01-01

    Full Text Available Massive hemoptysis can be a life threatening condition and needs urgent treatment in lung cancer. In the fiberoptic bronchoscopy of a fifty-two-year-old who was admitted with hemoptysis, left upper lobe upper division orifice was seen totally obstructed with a submucosal infiltration. One hour after the mucosal biopsies, massive hemoptysis occurred. Urgent rigid bronchoscopy was performed. The left main bronchus was occluded by sterile gauze. After cleaning of the coagulum patient was intubated and charged to intensive care unit. The next day, rigid bronchoscopy was repeated and the bleeding was observed to continue from the left upper lobe. Removing the gauze, 14 × 10 × 10 mm silicon Y stent was inserted in the left main bronchus after adjustments were made. Bleeding was stopped after insertion of the stent and patient could be extubated. In this case a successful control of hemoptysis was sustained after insertion of a customized silicon stent was presented.

  1. The Left-Handed Writer.

    Science.gov (United States)

    Bloodsworth, James Gaston

    Contrary to the beliefs of many, right-handedness is not a single factor existing in almost all people, with a few exceptions termed left-handed: neither extreme exists independently of the other. During the first 4 years of life there is a period of fluctuation between right and left-handed dominance. Statistics and findings vary in determining…

  2. Left Ventricle Diverticulum with Partial Cantrell's Syndrome

    Directory of Open Access Journals (Sweden)

    Mustapha El Kouache

    2012-01-01

    Full Text Available Cantrell syndrome is a very rare congenital disease associating five features: a midline, upper abdominal wall disorder, lower sternal abnormality, anterior diaphragmatic defect, diaphragmatic pericardial abnormality, and congenital abnormalities of the heart. In this paper, we report a case of partial Cantrell's syndrome with left ventricular diverticulum, triatrial situs solitus, ventricular septal defect, dextrorotation of the heart, an anterior pericardial diaphragmatic defect, and a midline supraumbilical abdominal wall defect with umbilical hernia. The 5-month-old patient underwent a successful cardiac surgical procedure. A PTFE membrane was placed on the apex of the heart to facilitate reopening of the patient’s chest. Postoperative course was uneventful. The patient was discharged with good clinical condition and with a normal cardiac function.

  3. Left-handedness and health

    Directory of Open Access Journals (Sweden)

    Milenković Sanja

    2010-01-01

    Full Text Available Hand dominance is defined as a proneness to use one hand rather than another in performing the majority of activities and this is the most obvious example of cerebral lateralization and an exclusive human characteristic. Left-handed people comprise 6-14% of the total population, while in Serbia, this percentage is 5-10%, moving from undeveloped to developed environments, where a socio-cultural pressure is less present. There is no agreement between investigators who in fact may be considered a left-handed person, about the percentage of left-handers in the population and about the etiology of left-handedness. In the scientific literature left-handedness has been related to health disorders (spine deformities, immunological disorders, migraine, neurosis, depressive psychosis, schizophrenia, insomnia, homosexuality, diabetes mellitus, arterial hypertension, sleep apnea, enuresis nocturna and Down Syndrome, developmental disorders (autism, dislexia and sttutering and traumatism. The most reliable scientific evidences have been published about the relationship between left-handedness and spinal deformities in school children in puberty and with traumatism in general population. The controversy of other results in up-to-now investigations of health aspects of left-handedness may partly be explained by a scientific disagreement whether writing with the left hand is a sufficient criterium for left-handedness, or is it necessary to investigate other parameters for laterality assessment. Explanation of health aspects of left-handedness is dominantly based on Geschwind-Galaburda model about 'anomalous' cerebral domination, as a consequence of hormonal disbalance. .

  4. Left ventricular wall stress compendium.

    Science.gov (United States)

    Zhong, L; Ghista, D N; Tan, R S

    2012-01-01

    Left ventricular (LV) wall stress has intrigued scientists and cardiologists since the time of Lame and Laplace in 1800s. The left ventricle is an intriguing organ structure, whose intrinsic design enables it to fill and contract. The development of wall stress is intriguing to cardiologists and biomedical engineers. The role of left ventricle wall stress in cardiac perfusion and pumping as well as in cardiac pathophysiology is a relatively unexplored phenomenon. But even for us to assess this role, we first need accurate determination of in vivo wall stress. However, at this point, 150 years after Lame estimated left ventricle wall stress using the elasticity theory, we are still in the exploratory stage of (i) developing left ventricle models that properly represent left ventricle anatomy and physiology and (ii) obtaining data on left ventricle dynamics. In this paper, we are responding to the need for a comprehensive survey of left ventricle wall stress models, their mechanics, stress computation and results. We have provided herein a compendium of major type of wall stress models: thin-wall models based on the Laplace law, thick-wall shell models, elasticity theory model, thick-wall large deformation models and finite element models. We have compared the mean stress values of these models as well as the variation of stress across the wall. All of the thin-wall and thick-wall shell models are based on idealised ellipsoidal and spherical geometries. However, the elasticity model's shape can vary through the cycle, to simulate the more ellipsoidal shape of the left ventricle in the systolic phase. The finite element models have more representative geometries, but are generally based on animal data, which limits their medical relevance. This paper can enable readers to obtain a comprehensive perspective of left ventricle wall stress models, of how to employ them to determine wall stresses, and be cognizant of the assumptions involved in the use of specific models.

  5. Nonvariceal upper gastrointestinal bleeding

    Energy Technology Data Exchange (ETDEWEB)

    Burke, Stephen J.; Weldon, Derik; Sun, Shiliang [University of Iowa, Department of Radiology, Iowa, IA (United States); Golzarian, Jafar [University of Iowa, Department of Radiology, Iowa, IA (United States); University of Iowa, Department of Radiology, Carver College of Medicine, Iowa, IA (United States)

    2007-07-15

    Nonvariceal upper gastrointestinal bleeding (NUGB) remains a major medical problem even after advances in medical therapy with gastric acid suppression and cyclooxygenase (COX-2) inhibitors. Although the incidence of upper gastrointestinal bleeding presenting to the emergency room has slightly decreased, similar decreases in overall mortality and rebleeding rate have not been experienced over the last few decades. Many causes of upper gastrointestinal bleeding have been identified and will be reviewed. Endoscopic, radiographic and angiographic modalities continue to form the basis of the diagnosis of upper gastrointestinal bleeding with new research in the field of CT angiography to diagnose gastrointestinal bleeding. Endoscopic and angiographic treatment modalities will be highlighted, emphasizing a multi-modality treatment plan for upper gastrointestinal bleeding. (orig.)

  6. [Upper extremity arterial diseases].

    Science.gov (United States)

    Becker, F

    2007-02-01

    Compared to lower limb arterial diseases, upper limb arterial diseases look rare, heterogeneous with various etiologies and a rather vague clinical picture, but with a negligible risk of amputation. Almost all types of arterial diseases can be present in the upper limb, but the anatomical and hemodynamic conditions particular to the upper limb often confuse the issue. Thus, atherosclerosis affects mainly the subclavian artery in its proximal segment where the potential of collateral pathway is high making the symptomatic forms not very frequent whereas the prevalence of subclavian artery stenosis or occlusion is relatively high. The clinical examination and the etiologies are discussed according to the clinical, anatomical and hemodynamic context.

  7. Left bundle-branch block

    DEFF Research Database (Denmark)

    Risum, Niels; Strauss, David; Sogaard, Peter

    2013-01-01

    The relationship between myocardial electrical activation by electrocardiogram (ECG) and mechanical contraction by echocardiography in left bundle-branch block (LBBB) has never been clearly demonstrated. New strict criteria for LBBB based on a fundamental understanding of physiology have recently...

  8. Left bundle-branch block

    DEFF Research Database (Denmark)

    Risum, Niels; Strauss, David; Sogaard, Peter;

    2013-01-01

    The relationship between myocardial electrical activation by electrocardiogram (ECG) and mechanical contraction by echocardiography in left bundle-branch block (LBBB) has never been clearly demonstrated. New strict criteria for LBBB based on a fundamental understanding of physiology have recently...

  9. Apraxia in left-handers.

    Science.gov (United States)

    Goldenberg, Georg

    2013-08-01

    In typical right-handed patients both apraxia and aphasia are caused by damage to the left hemisphere, which also controls the dominant right hand. In left-handed subjects the lateralities of language and of control of the dominant hand can dissociate. This permits disentangling the association of apraxia with aphasia from that with handedness. Pantomime of tool use, actual tool use and imitation of meaningless hand and finger postures were examined in 50 consecutive left-handed subjects with unilateral hemisphere lesions. There were three aphasic patients with pervasive apraxia caused by left-sided lesions. As the dominant hand is controlled by the right hemisphere, they constitute dissociations of apraxia from handedness. Conversely there were also three patients with pervasive apraxia caused by right brain lesions without aphasia. They constitute dissociations of apraxia from aphasia. Across the whole group of patients dissociations from handedness and from aphasia were observed for all manifestations of apraxia, but their frequency depended on the type of apraxia. Defective pantomime and defective tool use occurred rarely without aphasia, whereas defective imitation of hand, but not finger, postures was more frequent after right than left brain damage. The higher incidence of defective imitation of hand postures in right brain damage was mainly due to patients who had also hemi-neglect. This interaction alerts to the possibility that the association of right hemisphere damage with apraxia has to do with spatial aptitudes of the right hemisphere rather than with its control of the dominant left hand. Comparison with data from right-handed patients showed no differences between the severity of apraxia for imitation of hand or finger postures, but impairment on pantomime of tool use was milder in apraxic left-handers than in apraxic right-handers. This alleviation of the severity of apraxia corresponded with a similar alleviation of the severity of aphasia as

  10. ACA Federal Upper Limits

    Data.gov (United States)

    U.S. Department of Health & Human Services — Affordable Care Act Federal Upper Limits (FUL) based on the weighted average of the most recently reported monthly average manufacturer price (AMP) for...

  11. Upper GI Endoscopy

    Science.gov (United States)

    ... to diagnose conditions such as cancer celiac disease gastritis Doctors also use upper GI endoscopy to treat ... Bhutani MS. Esophagogastroduodenoscopy. Medscape website. emedicine.medscape.com/article/1851864-overview#a17 . Updated June 3, 2013. Accessed ...

  12. Upper gastrointestinal bleeding.

    Science.gov (United States)

    Feinman, Marcie; Haut, Elliott R

    2014-02-01

    Upper gastrointestinal (GI) bleeding remains a commonly encountered diagnosis for acute care surgeons. Initial stabilization and resuscitation of patients is imperative. Stable patients can have initiation of medical therapy and localization of the bleeding, whereas persistently unstable patients require emergent endoscopic or operative intervention. Minimally invasive techniques have surpassed surgery as the treatment of choice for most upper GI bleeding. Copyright © 2014 Elsevier Inc. All rights reserved.

  13. What Are the Advantages Today of Having an Upper Secondary Qualification? Education Indicators in Focus. No. 34

    Science.gov (United States)

    OECD Publishing, 2015

    2015-01-01

    In most OECD countries, the large majority of adults had at least an upper secondary qualification in 2013, making the completion of upper secondary education the minimum threshold for successful labour market entry and continued employability or the pursuit of further education. Young people who left school before completing upper secondary…

  14. Lung mass, right upper lung - chest x-ray (image)

    Science.gov (United States)

    ... chest x-ray of a person with a lung mass. This is a front view, where the lungs are the two dark areas and the heart ... ray shows a mass in the right upper lung, indicated with the arrow (seen on the left ...

  15. Upper GI Bleeding in Children

    Science.gov (United States)

    Upper GI Bleeding in Children What is upper GI Bleeding? Irritation and ulcers of the lining of the esophagus, stomach or duodenum can result in upper GI bleeding. When this occurs the child may vomit ...

  16. Upper GI Bleeding in Children

    Science.gov (United States)

    Upper GI Bleeding in Children What is upper GI Bleeding? Irritation and ulcers of the lining of the esophagus, stomach or duodenum can result in upper GI bleeding. When this occurs the child may vomit blood ...

  17. To the Left or the Right?

    Institute of Scientific and Technical Information of China (English)

    ZHANGZHAOHUI

    2004-01-01

    THE Left Bank Gallery in the Zhongguancun area of Beijing's Haidian District unveiled “The Left-Wing” in late December 2003. The gallery housed the exhibit two huge concrete floors within a commercialreal estate project called Left Bank.

  18. [Left pulmonary agenesis diagnosed late].

    Science.gov (United States)

    Deleanu, Oana; Pătraşcu, Natalia; Nebunoiu, Ana-Maria; Vintilă, V; Ulmeanu, Ruxandra; Mihălţan, F D

    2010-01-01

    We present the case of a 51 years old female-patient, with severe dextroscoliosis, having like unique symptom progressive dyspnea. The blood samples reveals polycythemia, the radiological exam shows the opacification of 2/3 of the left thorax, the absence of the lung structure in the other 1/3, the deviation of the mediastinum, and dextroscoliosis; the computed tomography reveals the absence of the left lung artery and the left airways, compensatory hyperinflation of the right lung and dilatation of the trunk and right pulmonary artery; the bronchoscopy does not visualize the carina or the left main bronchus, typical for pulmonary agenesis. Echocardiography confirmed the absence of left pulmonary artery and shows mild pulmonary hypertension (systolic pressure in the pulmonary artery of 33 mmHg) with dilatation of the right cavities, but good cinetics. We face a case of pulmonary agenesis lately diagnosed, with modest functional cardiologic implications, limited therapeutic options and good survival, justified by the late appearance of the pulmonary hypertension of low severity and without worsening in time.

  19. Producing The New Regressive Left

    DEFF Research Database (Denmark)

    Crone, Christine

    to be a committed artist, and how that translates into supporting al-Assad’s rule in Syria; the Ramadan programme Harrir Aqlak’s attempt to relaunch an intellectual renaissance and to promote religious pluralism; and finally, al-Mayadeen’s cooperation with the pan-Latin American TV station TeleSur and its ambitions...... becomes clear from the analytical chapters is the emergence of the new cross-ideological alliance of The New Regressive Left. This emerging coalition between Shia Muslims, religious minorities, parts of the Arab Left, secular cultural producers, and the remnants of the political,strategic resistance...... coalition (Iran, Hizbollah, Syria), capitalises on a series of factors that bring them together in spite of their otherwise diverse worldviews and agendas. The New Regressive Left is united by resistance against the growing influence of Saudi Arabia in the religious, cultural, political, economic...

  20. Nonvariceal Upper Gastrointestinal Bleeding.

    Science.gov (United States)

    Rahman, Syed Irfan-Ur; Saeian, Kia

    2016-04-01

    In the intensive care unit, vigilance is needed to manage nonvariceal upper gastrointestinal bleeding. A focused history and physical examination must be completed to identify inciting factors and the need for hemodynamic stabilization. Although not universally used, risk stratification tools such as the Blatchford and Rockall scores can facilitate triage and management. Urgent evaluation for nonvariceal upper gastrointestinal bleeds requires prompt respiratory assessment, and identification of hemodynamic instability with fluid resuscitation and blood transfusions if necessary. Future studies are needed to evaluate the indication, safety, and efficacy of emerging endoscopic techniques. Copyright © 2016 Elsevier Inc. All rights reserved.

  1. Upper Eyelid Reconstruction.

    Science.gov (United States)

    Espinoza, Gabriela Mabel; Prost, Angela Michelle

    2016-05-01

    Reconstruction of the upper eyelid is complicated because the eyelid must retain mobility, flexibility, function, and a suitable mucosal surface over the delicate cornea. Defects of the upper eyelid may be due to congenital defects or traumatic injury or follow oncologic resection. This article focuses on reconstruction due to loss of tissue. Multiple surgeries may be needed to reach the desired results, addressing loss of tissue and then loss of function. Each defect is unique and the laxity and availability of surrounding tissue vary. Knowing the most common techniques for repair assists surgeons in the multifaceted planning that takes place.

  2. Symptomatic obstruction of the brachiocephalic and left subclavian arteries obscured by aortic stenosis.

    Science.gov (United States)

    Hashim, Peter W; Assi, Roland; Grecu, Loreta; Dardik, Alan

    2014-04-01

    Stenosis or occlusion of the brachiocephalic artery represents an uncommon cause of cerebrovascular insufficiency. We report a patient with combined brachiocephalic and left subclavian obstruction with clinical manifestations of lightheadedness, syncope, and left-sided weakness who remained misdiagnosed essentially because of symmetrical pressures in the upper extremities. Aortic valve replacement for aortic stenosis failed to provide symptomatic relief. Eventual stenting of the brachiocephalic trunk resolved the patient's symptoms. Our report highlights the diagnostic challenges in this case of bilateral supraaortic vessel disease and shows that equal upper extremity pressures do not rule out brachiocephalic artery obstruction.

  3. Mitochondria and left ventricular hypertrophy

    Institute of Scientific and Technical Information of China (English)

    Haiyan Zhu; Shiwen Wang

    2008-01-01

    @@ Introduction Left ventricular hypertrophy (LVH) is one of the vicious organ damages of essential hypertension.It contributes a lot to high mortality of essential hypertension due to sudden cardiac death,ventricular arrhythmia and heart failure.Many factors involve in the pathogenesis of hypertension-induced LVH including inherited variants as well as environmental factors.

  4. Accessory left gastric artery: angiographic anatomy

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Kang Soo; Lim, Hyung Guhn; Kim, Hong Soo; Jeon, Doo Sung [Presbyterian Medical Center, Chunju (Korea, Republic of); Chung, Jin Wook; Park, Jae Hyung [College of Medicine and the Institute of Radiation Medicine, Seoul National University, Seoul (Korea, Republic of); Song, Soon Young [Myongji Hospital, College of Medicine, Kwandong University, Seoul (Korea, Republic of)

    2000-09-01

    To evaluate the angiographic anatomy of the accessory left gastric artery (accLGA). We evaluated the angiographic findings of the accLGA in 50 patients (Angiostar; Siemens, Erlangen, Germany). Performing celiac and selective angiography in 50 and 34 patients, respectively. By means of celiac angiography, (1) site of origin, (2) anatomical course, (3) diameter, (4) degree of tortuosity, and (5) distal tapering were evaluated, while selective angiography was used to determine (1) arterial branching, (2) area of blood supply, and (3) patterns of gastric wall stain. Celiac angiography showed that the accLGA arose from the left hepatic artery (LHA) in 45 cases (90%) and from the proper hepatic artery in five (10%). If the accLGA arose from the LHA, its origin entirely depended on the branching pattern of the latter. It always arose from the lateral branch of the LHA furthest to the left and uppermost, and proximal to its umbilical point. The most common anatomical course of the accLGA, seen in 27 cases (54%), was between the S2 and S3 segmental branch. The diameter and degree of tortuosity of the accLGA were similar to those of adjacent intrahepatic branches in 21 (42%) and 33 cases (66%), respectively. The degree of tapering was less than that of adjacent intrahepatic vessel in 28 (56%). Selective angiography demonstrated esophageal branching of the acc LGA in 27 cases (79%), inferior phrenic arterial branching in three (9%), a mediastinal branch in one (3%), and hypervascularity of the lung in one (3%). In 15 cases (44%), bifurcation of the accLGA was recognized. The vascular territory of the accLGA was the gastric fundus together with the distal esophagus in 21 cases (62%), mainly the gastric fundus in six (18%), and mainly the distal esophagus in four (12%). The pattern of gastric mucosal stain was curvilinear wall in 31 cases (91%) and nodular in three (9%). A knowledge of the angiographic anatomy of the accLGA facilitates accurate recognition of this artery on

  5. Postoperative upper airway problems

    African Journals Online (AJOL)

    QuickSilver

    2003-06-09

    Jun 9, 2003 ... REVIEW ARTICLE. Southern African Journal of Anaesthesia & Analgesia - May 2003. 12. Postoperative upper airway problems way. A number of factors, some avoidable, influence the incidence ... debilitating pain, inability to swallow and temporary voice changes, and are a ..... decrease airway resistance.

  6. Low scale left-right-right-left symmetry

    CERN Document Server

    Abbas, Gauhar

    2016-01-01

    We propose an effective left-right-right-left model with a parity breaking scale around a few TeV. One of the main achievements of the model is that the mirror fermions as well as the mirror gauge sector simultaneously could be at TeV scale. It is shown that the most dangerous quadratic divergence of the SM Higgs boson involving the top quark in the loop is naturally suppressed atleast up to approximately $10$ TeV. This could lead to a sufficient parameter space in the scalar potential to make the SM Higgs mass natural even up to the Planck scale. An elegant symmetry breaking pattern is also proposed.

  7. What Research Tells Us About Left Handedness.

    Science.gov (United States)

    Arnold, Rita

    Left handed people have had bad publicity throughout history, and the resulting myths and disadvantages of left handedness have often not been properly dealt with in the classroom. Our language itself maintains a bias against the left, and many other cultures have defined the left as disreputable. Today's life style also provides many physical…

  8. Right-handed and left-landed

    Institute of Scientific and Technical Information of China (English)

    李悦

    2005-01-01

    Today about 15% of the number of people is left-handed.But why are people left-handed? The answer is the way the brain (大脑) works.The brain has two halves——the right half and the left half.The right half controls (控制)the left side of the body,and the left controls the right side of the body.

  9. Repair of pectus excavatum in a toddler with Prune Belly syndrome and left bronchus compression

    Directory of Open Access Journals (Sweden)

    Shawn T. Liechty

    2017-01-01

    Full Text Available A 2-year-old boy with prune-belly syndrome and severe pectus excavatum experienced recurrent pulmonary infections. A CT scan of the chest demonstrated compression of the left mainstem bronchus and leftward shift of the heart. The bronchial compression resulted in left upper lobe collapse and left lower lobe air-trapping requiring two hospitalizations for respiratory distress and pneumonia. The child underwent minimally invasive repair of his pectus excavatum and has not experienced any further pulmonary events. The pectus bar was removed 3 years post-operatively and at seven years following surgery he has a sustained repair.

  10. Upper urinary tract tumors

    DEFF Research Database (Denmark)

    Gandrup, Karen L; Nordling, Jørgen; Balslev, Ingegerd

    2014-01-01

    BACKGROUND: Computed tomography urography (CTU) is used widely in the work-up of patients with symptoms of urinary tract lesions. Preoperative knowledge of whether a tumor is invasive or non-invasive is important for the choice of surgery. So far there are no studies about the distinction...... of invasive and non-invasive tumors in ureter and renal pelvis based on the enhancement measured with Hounsfield Units. PURPOSE: To examine the value of CTU using split-bolus technique to distinguish non-invasive from invasive urothelial carcinomas in the upper urinary tract. MATERIAL AND METHODS: Patients...... obtained at CTU could distinguish between invasive and non-invasive lesions. No patients had a CTU within the last year before the examination that resulted in surgery. CONCLUSION: A split-bolus CTU cannot distinguish between invasive and non-invasive urothelial tumors in the upper urinary tract...

  11. Representational momentum reveals visual anticipation differences in the upper and lower visual fields.

    Science.gov (United States)

    Gottwald, Victoria M; Lawrence, Gavin P; Hayes, Amy E; Khan, Michael A

    2015-08-01

    Recent empirical research has revealed differences in functional capacity between the upper and lower visual fields (VFs), with the lower VF exhibiting superiority in visual perception skills. Similarly, functional differences between the left and right hemispheres elicit a predominance for visuospatial processing in the left visual field (left VF). Both anatomical as well as evolutionary arguments have been adopted in accounting for these variations in function. Preceding upper and lower VF research has typically investigated either static stimulus perception or the visual processing of upper limb action. The aim of the current research was to investigate whether the lower VF benefits associated with limb control transcend to visual anticipation (the perception of motion). Methods were based on Khan and Lawrence (Exp Brain Res 164:395-398, 2005), who investigated upper/lower VF differences in visuomotor control, but utilising a representational momentum paradigm to isolate perceptual processes. Thirty-two participants were randomised into either a left or right VF group and completed a perceptual computer-based task in the upper and lower VF, where they were required to judge the final position of a moving object before it disappeared. Two aspects of the distributions of same responses were then analysed; the central tendency (weighted means) and the variability. Results revealed that in the left VF, weighted means for the lower VF were significantly greater than for the upper VF [t(14) = 2.242, p = 0.042]. In both left and right VFs, variability was greater in the upper compared to lower VF. This provides new findings regarding visual processes in the different visual fields. While visual search and large scene perception has been found to be superior in the upper VF, here we find that visual anticipation, like target-directed visuomotor skill, is superior in the lower VF.

  12. Myxomycetes from upper Egypt.

    Science.gov (United States)

    Abdel-Raheem, Ahmed M

    2002-01-01

    The results of the first inventory of Myxomycetes from the subtropical region Upper Egypt are reported. The substrates were wood, bark of living and dead tree and leaf litter. 20 species belonging to 17 genera of Myxomycetes were identified. Wood was the best substrate for Myxomycetes colonization. Ceratiomyxa fruticulosa, Didymiun melanospermum, Licea biforis and Lycogala epidendrum were the most common species. Brief description and classification of species are provided.

  13. Gesture imitation with lower limbs following left hemisphere stroke.

    Science.gov (United States)

    Ambrosoni, Elena; Della Sala, Sergio; Motto, Cristina; Oddo, Silvia; Spinnler, Hans

    2006-05-01

    Ideomotor apraxia (IMA) of lower limbs has rarely been investigated systematically. This is the aim of the current study. Thirty-five patients with a unilateral stroke in the left hemisphere were tested within 30 days from onset with an upper limb IMA test and with a newly devised test assessing leg IMA. Seventeen patients presented with arm apraxia, six of them also showed severe leg apraxia. Results suggest that IMA of lower limbs emerges in association with severe arm IMA in patients with large lesions, and is a sign of general severity of the patient's conditions.

  14. Systolic left ventricular function according to left ventricular concentricity and dilatation in hypertensive patients

    DEFF Research Database (Denmark)

    Bang, Casper; Gerdts, Eva; Aurigemma, Gerard P;

    2013-01-01

    Left ventricular hypertrophy [LVH, high left ventricular mass (LVM)] is traditionally classified as concentric or eccentric based on left ventricular relative wall thickness. We evaluated left ventricular systolic function in a new four-group LVH classification based on left ventricular dilatatio...

  15. Upper ocean response to typhoon Kalmaegi (2014)

    Science.gov (United States)

    Zhang, Han; Chen, Dake; Zhou, Lei; Liu, Xiaohui; Ding, Tao; Zhou, Beifeng

    2016-08-01

    Typhoon Kalmaegi passed over an array of buoys and moorings in the northern South China Sea in September 2014, leaving a rare set of observations on typhoon-induced dynamical and thermohaline responses in the upper ocean. The dynamical response was characterized by strong near-inertial currents with opposite phases in the surface mixed layer and in the thermocline, indicating the dominance of the response by the excitation of the first baroclinic mode. The thermohaline response showed considerable changes in the mean fields in addition to a near-inertial oscillation. In particular, temperature and salinity anomalies generally exhibited a three-layer vertical structure, with the surface layer becoming cooler and saltier, the subsurface layer warmer and fresher, and the lower layer cooler and saltier again. The response in the surface and subsurface layers was much stronger to the right of the typhoon track, while that in the lower layer was stronger along the track and to the left. These features of the upper ocean response were grossly reproduced by a three-dimensional numerical model. A model-based heat budget analysis suggests that vertical mixing was mainly responsible for the surface cooling and subsurface warming, while upwelling was the cause of cooling from below. Both observations and model results indicate that the whole upper ocean experienced an overall cooling in the wake of typhoon Kalmaegi.

  16. Malignant schwannoma of the upper mediastinum originating from the vagus nerve

    Directory of Open Access Journals (Sweden)

    Nishiyama Kenichi

    2005-10-01

    Full Text Available Abstract Background Malignant schwannoma of the upper mediastinum originating from the vagus nerve is extremely rare. Case presentation A 46-year-old female was admitted for a left cervical mass which was associated with both hoarseness and Horner's syndrome. Chest computed tomography showed a mass extending from the left upper mediastinum to the left supraclavicular area. A fine needle aspiration cytological examination suggested primary lung cancer stage IIIB large cell carcinoma. After administering induction chemo-radiotherapy, a complete surgical resection was performed. The tumor was found to involve both the left vagus nerve and the left sympathetic nerve. Histological examination of the resected specimen revealed the tumor to be malignant schwannoma. Conclusion Despite incorrect preoperative diagnosis, the multimodality treatment administered in this case, including induction chemo-radiotherapy and surgery, proved to be effective.

  17. Rebuilding the US Health Left

    Directory of Open Access Journals (Sweden)

    Victor W. Sidel, MD

    2010-02-01

    Full Text Available With this issue Social Medicine begins a series of invited papers on the topic: “Rebuilding the US Health Left.” In this editorial we will outline our vision for this series. We undertake this project aware that our good friend and mentor, Dr. Walter Lear, one of the leading health activists of the 20th century, lies critically ill. Walter was the creator and custodian of the US Health Left Archives, a collection that is now with the University of Pennsylvania library. The collection reminds us of the important role left health care workers played in US history throughout the 20th century. They advocated for a national health program (Committee on the Costs of Medical Care, Physicians Forum, Medical Care Section/APHA, HealthPAC, Physicians for a National Health Program, National Physicians Alliance, provided international solidarity (American Soviet Medical Society, international brigades during the Spanish Civil War, Central American Solidarity Movement, Committee to Help Chilean Health Workers, Doctors for Global Health, traced the connections between disease and social class (Sigerist Circle, Spirit of 1848, APHA, fought for workers’ health (Councils for Occupational Safety and Health; Occupational Health and Safety Section, APHA participated in anti-war movements (Medical Committee for Human Rights, Physicians for Social Responsibility, International Physicians for the Prevention of Nuclear War, created new models of health care delivery (Health Cooperatives, Prepaid Health Maintenance Organizations, Community Health Centers, National Health Service Corps, Free Clinics, were central to the struggle for women’s rights (Planned Parenthood, Physicians for Reproductive Choice and Health, supported the civil rights movement both in medicine and in the broader society (National Medical Association, Medical Committee for Human Rights, played key roles in the movement for gay rights (ACT-UP, Gay & Lesbian Medical Association, Lesbian, Gay

  18. Automated left ventricular capture management.

    Science.gov (United States)

    Crossley, George H; Mead, Hardwin; Kleckner, Karen; Sheldon, Todd; Davenport, Lynn; Harsch, Manya R; Parikh, Purvee; Ramza, Brian; Fishel, Robert; Bailey, J Russell

    2007-10-01

    The stimulation thresholds of left ventricular (LV) leads tend to be less reliable than conventional leads. Cardiac resynchronization therapy (CRT) requires continuous capture of both ventricles. The purpose of this study is to evaluate a novel algorithm for the automatic measurement of the stimulation threshold of LV leads in cardiac resynchronization systems. We enrolled 134 patients from 18 centers who had existing CRT-D systems. Software capable of automatically executing LV threshold measurements was downloaded into the random access memory (RAM) of the device. The threshold was measured by pacing in the left ventricle and analyzing the interventricular conduction sensed in the right ventricle. Automatic LV threshold measurements were collected and compared with manual LV threshold tests at each follow-up visit and using a Holter monitor system that recorded both the surface electrocardiograph (ECG) and continuous telemetry from the device. The proportion of Left Ventricular Capture Management (LVCM) in-office threshold tests within one programming step of the manual threshold test was 99.7% (306/307) with a two-sided 95% confidence interval of (98.2%, 100.0%). The algorithm measured the threshold successfully in 96% and 97% of patients after 1 and 3 months respectively. Holter monitor analysis in a subset of patients revealed accurate performance of the algorithm. This study demonstrated that the LVCM algorithm is safe, accurate, and highly reliable. LVCM worked with different types of leads and different lead locations. LVCM was demonstrated to be clinically equivalent to the manual LV threshold test. LVCM offers automatic measurement, output adaptation, and trends of the LV threshold and should result in improved ability to maintain LV capture without sacrificing device longevity.

  19. Left atrial ball valve thrombus

    Directory of Open Access Journals (Sweden)

    R. Balaji

    2013-10-01

    Full Text Available "Ball valve thrombus" which is a spherical free floating clot in left atrium is an often quoted, but uncommonly encountered complication in patients with severe mitral stenosis of rheumatic origin, who are in atrial fibrillation. We describe the case of a 31-year-old lady with rheumatic heart disease, severe mitral stenosis and moderately severe aortic stenosis who had undergone closed mitral valvotomy 13 years ago. The patient presented with an episode of non-exertional syncope and breathlessness on exertion of 6 months duration and was in normal sinus rhythm. Echocardiography facilitated ante-mortem diagnosis and prompt institution of surgery was life saving.

  20. in upper gastrointestinal endoscopy

    Directory of Open Access Journals (Sweden)

    Sinan Uzman

    2016-07-01

    Full Text Available Introduction : There is increasing interest in sedation for upper gastrointestinal endoscopy (UGE. Prospective randomized studies comparing sedation properties and complications of propofol and midazolam/meperidine in upper gastrointestinal endoscopy (UGE are few. Aim: To compare propofol and midazolam/meperidine sedation for UGE in terms of cardiopulmonary side effects, patient and endoscopist satisfaction and procedure-related times. Material and methods: This was a prospective, randomized, double-blind study of propofol versus midazolam and meperidine in 100 patients scheduled for diagnostic upper gastrointestinal endoscopy. The patients were divided into propofol and midazolam/meperidine groups. Randomization was generated by a computer. Cardiopulmonary side effects (hypotension, bradycardia, hypoxemia, procedure-related times (endoscopy time, awake time, time to hospital discharge, and patient and endoscopist satisfaction were compared between groups. Results: There was no significant difference between the groups with respect to the cost, endoscopy time, or demographic and clinical characteristics of the patients. Awake time and time to hospital discharge were significantly shorter in the propofol group (6.58 ±4.72 vs. 9.32 ±4.26 min, p = 0.030 and 27.60 ±7.88 vs. 32.00 ±10.54 min, p = 0.019. Hypotension incidence was significantly higher in the propofol group (12% vs. 0%, p = 0.027. The patient and endoscopist satisfaction was better with propofol. Conclusions : Propofol may be preferred to midazolam/meperidine sedation, with a shorter awake and hospital discharge time and better patient and endoscopist satisfaction. However, hypotension risk should be considered with propofol, and careful evaluation is needed, particularly in cardiopulmonary disorders.

  1. Facts about Hypoplastic Left Heart Syndrome

    Science.gov (United States)

    ... left and right sides of the heart: the patent ductus arteriosus and the patent foramen ovale . Normally, these openings ... functioning left side of the heart through the patent ductus arteriosus and the patent foramen ovale. The right side ...

  2. The Semigroup Structure of Left Clifford Semirings

    Institute of Scientific and Technical Information of China (English)

    Yu Qi GUO; Kar Ping SHUM; M. K. SEN

    2003-01-01

    In this paper, we generalize Clifford semirings to left Clifford semirings by means of theso-called band semirings. We also discuss a special case of this kind of semirings, that is, strongdistributive lattices of left rings.

  3. [Tumor of upper urinary tract in renal polycystic disease].

    Science.gov (United States)

    Rabii, Redouane; el Mejjad, Amine; Fekak, Hamid; Querfani, Baderdine; Joual, Abdenbi; el Mrini, Mohamed

    2003-09-01

    Upper urinary tract tumours are exceptional in the context of renal polycystic disease. The authors report the case of Mrs B. F., 56 years old, who presented with left loin pain associated with haematuria. Clinical examination was normal and ultrasound examination revealed bilateral renal polycystic disease with a mass in the left renal sinus. CT urography showed a tumour arising from the renal pelvis suggestive of an upper urinary tract tumour. The laboratory assessment revealed normal renal function and normal urine cytology. Treatment consisted of radical nephroureterectomy with resection of a bladder cuff. Histological examination revealed a urothelial tumour of the renal pelvis with negative surgical margins. In the light of this case, the authors discuss the diagnostic difficulties and specificities, the treatment and the outcome of this unusual clinical association.

  4. Removal of retained upper canine in the middle. Case report

    Directory of Open Access Journals (Sweden)

    Bienvenido Mesa Reinaldo

    2010-07-01

    Full Text Available The inclusion of upper canine is one of the most common retentions that occur in permanent teething, this event may be related to that, this is the last tooth to erupt in the lower, also is associated with involution of the jaws, because eruption path is long and complex, often facing unfavorable. A case of a female patient, aged 25, of rural origin, which does not suffer from any disease, which was seen because of discomfort in area 23, ie in the left upper permanent canine. It was noted in the oral examination persistent left superior temporal canine, 63, and periapical and panoramic X-rays showed the presence of 23 included in an intermediate position. It was decided to make a modification of surgical technique with a conservative view of the palatal cortical bone. Was performed successfully including resection of the canine.

  5. Uniportal video-assisted thoracic surgery left superior segmentectomy with systematic lymphadenectomy in the semiprone position.

    Science.gov (United States)

    Lin, Zongwu; Xi, Junjie; Xu, Songtao; Wang, Qun

    2016-08-01

    A 63-year-old male was referred to our hospital with two existing lesions in bilateral lungs. Computed tomography (CT) showed a 15-mm ground-glass opacity (GGO) in the superior segment of left lower lung (S6) and a 5-mm GGO in the center of the right upper lobe. The preoperative clinical diagnosis was stage I primary lung cancer for the left lesion while the right lesion needed follow-up. Uniportal video-assisted thoracic surgery (VATS) left superior segmentectomy in the semiprone position was performed in this case and the right upper lobe was kept untouched. Frozen section examination confirmed the diagnosis of lung adenocarcinoma, and systematic lymphadenectomy with non-grasping en bloc dissection technique was then performed. A chest tube was placed at the posterior part of the incision through the dorsal thoracic cavity to the apex. The postoperative pathologic diagnosis was minimally invasive adenocarcinoma, staged T1aN0M0.

  6. Left Supraclavicular Spindle Cell Lipoma

    Directory of Open Access Journals (Sweden)

    Oladejo Olaleye

    2010-01-01

    This case highlights a rare presentation of SCL and the need for pre-operative diagnosis. Case Report. A 63-year-old gentleman presented with a pre-existing left supraclavicular mass that had recently increased in size. FNA and CT Scans were performed and results discussed in the mutidisciplinary team meeting. Excisional biopsy was recommended. Radiology. CT neck showed a left supraclavicular mass of fatty density with fine internal septations. A low-grade liposarcoma could not be excluded. Histopathology. FNA was indeterminate. Histology of specimen showed bland spindle cells with no evidence of malignancy. Immuno-histochemistry showed SCL with CD34 positivity and negative staining on CDK4 and p16. Management. Excision biopsy of the mass was performed which was technically difficult as the mass invaginated around the brachial plexus. The patient recovered well post-operatively with no neurological deficits. Conclusion. Spindle cell lipoma is a rare benign tumour and a pre-operative diagnosis based on the clinical context, imaging and immuno-histochemistry is crucial to management.

  7. [Pulmonary hypertension caused by left heart disease].

    Science.gov (United States)

    Erer, Betül; Eren, Mehmet

    2010-09-01

    Increased resistance to pulmonary venous drainage is the main mechanism in pulmonary hypertension (PH) developing due to left heart disease. This condition may occur as a result of various diseases affecting left ventricle, left atrium, mitral or aortic valves. Pulmonary hypertension is the common and well-recognized complication of left ventricular systolic dysfunction and pulmonary arterial hypertension accompanying chronic heart failure is related to increased mortality. Treatment should be tailored according to the underlying disease.

  8. Transcortical mixed aphasia with left frontoparietal lesions.

    Science.gov (United States)

    Maeshima, S; Uematsu, Y; Terada, T; Nakai, K; Itakura, T; Komai, N

    1996-05-01

    We present a case of transcortical mixed aphasia following a left frontoparietal infarct caused by vasospasm after subarachnoid haemorrhage. Although CT showed low-density areas in the left frontal lobe and basal ganglia, single photon emission CT revealed a wider area of low perfusion over the entire left hemisphere, except for the left perisylvian speech areas. Hence, transcortical mixed aphasia may be caused by the isolation of perisylvian speech areas due to disconnection from surrounding areas.

  9. Split Left GC-Lpp Semigroups

    Institute of Scientific and Technical Information of China (English)

    Zhen Zhen LI; Xiao Jiang GUO; Zhi Qing FU

    2012-01-01

    A left GC-lpp semigroup S is called split if the natural homomorphism γb of S onto S/γ induced by γ is split.It is proved that a left GC-lpp semigroup is split if and only if it has a left adequate transversal.In particular,a construction theorem for split left GC-lpp semigroups is established.

  10. A new species of Ischyodus (Chondrichthyes: Holocephali: Callorhynchidae) from Upper Maastrichtian Shallow marine facies of the Fox Hills and Hell Creek Formations, Williston basin, North Dakota, USA

    Science.gov (United States)

    Hoganson, J.W.; Erickson, J.M.

    2005-01-01

    A new species of chimaeroid, Ischyodus rayhaasi sp. nov., is described based primarily upon the number and configuration of tritors on palatine and mandibular tooth plates. This new species is named in honour of Mr Raymond Haas. Fossils of I. rayhaasi have been recovered from the Upper Maastrichtian Fox Hills Formation and the Breien Member and an unnamed member of the Hell Creek Formation at sites in south-central North Dakota and north-central South Dakota, USA. Ischyodus rayhaasi inhabited shallow marine waters in the central part of the Western Interior Seaway during the latest Cretaceous. Apparently it was also present in similar habitats at that time in the Volga region of Russia. Ischyodus rayhaasi is the youngest Cretaceous species Ischyodus known to exist before the Cretaceous/Tertiary extinction, and the species apparently did not survive that event. It was replaced by Ischyodus dolloi, which is found in the Paleocene Cannonball Formation of the Williston Basin region of North Dakota and is widely distributed elsewhere. ?? The Palaeontological Association.

  11. Bicyclic semigroups of left I-quotients

    CERN Document Server

    Ghroda, Nassraddin

    2011-01-01

    In this article we study left I-orders in the bicyclic monoid $\\mathcal{B}$. We give necessary and sufficient conditions for a subsemigroup of $\\mathcal{B}$ to be a left I-oreder in $\\mathcal{B}$. We then prove that any left I-order in $\\mathcal{B}$ is straight.

  12. The Left-Handed: "Their Sinister" History.

    Science.gov (United States)

    Costas, Elaine Fowler

    The history of left-handedness can provide teachers and parents a better understanding of left-handed children and give those children more pride in their difference. No child should be made to feel that he or she is abnormal because of using the left hand, although some specific instruction for these students is necessary in handwriting. Many…

  13. Left-handed Children in Singapore.

    Science.gov (United States)

    Gan, Linda

    1998-01-01

    Used teacher questionnaires to examine incidence of left-handedness in nearly 2,800 Singaporean children, racial differences in this left-handed population, and educational provisions in preschool and primary school. Findings indicated that 7.5% of preschoolers and 6.3% of primary children were left-handed, with a higher proportion being Chinese…

  14. Acute upper gastrointestinal bleeding.

    Science.gov (United States)

    Kurien, Matthew; Lobo, Alan J

    2015-10-01

    Acute upper gastrointestinal bleeding (AUGIB) is a frequently encountered medical emergency with an incidence of 84-160/100000 and associated with mortality of approximately 10%. Guidelines from the National Institute for Care and Care Excellence outline key features in the management of AUGIB. Patients require prompt resuscitation and risk assessment using validated tools. Upper gastrointestinal endoscopy provides accurate diagnosis, aids in estimating prognosis and allows therapeutic intervention. Endoscopy should be undertaken immediately after resuscitation in unstable patients and within 24 hours in all other patients. Interventional radiology may be required for bleeding unresponsive to endoscopic intervention. Drug therapy depends on the cause of bleeding. Intravenous proton pump inhibitors should be used in patients with high-risk ulcers. Terlipressin and broad-spectrum antibiotics should be used following variceal haemorrhage. Hospitals admitting patients with AUGIB need to provide well organised services and ensure access to relevant services for all patients, and particularly to out of hours endoscopy. © Royal College of Physicians 2015. All rights reserved.

  15. Anatomical and behavioural asymmetries in right and left handers from India.

    Science.gov (United States)

    Hebbal, Gurusiddappa Veerabhadrappa; Mysorekar, Viswanath Ramrao

    2003-06-01

    A biometric study of the right and left limb size and functional-behavioural measures, such as, strength of the hand and the foot, foot-eye-ear preferences, asymmetries in visual acuity and audiometry, asymmetries in taste and smell perceptions was made in a sample of Indian students to find out the interrelationships between the above parameters. Healthy adult male (n = 42), females (n = 45) right handers, and, male (n = 21), female (n = 20) left handers were studied. In each, 8 measurements of each of the limbs were taken, and the strength of the hands and feet determined. Hand and foot preferences were determined through 11 and 9 tasks respectively. Dominance in the eye, ear, taste and smell were ascertained by various tests. Right or left handedness and right footedness were clearly discernible but left footedness was indistinct. Right handedness was associated with dominant right upper limb and left handedness was associated with dominant left upper limb. Only right handers showed a dominant corresponding lower limb. Eyedness was related to handedness in males. Earedness and taste were associated with handedness in females. Smell had no relationship with handedness in both sexes. There was no interrelationship between handedness, footedness, eyedness, earedness, taste and smell.

  16. Left Vocal Cord Paralysis Detected by PET/CT in a Case of Lung Cancer

    Directory of Open Access Journals (Sweden)

    Ali Ozan Oner

    2015-01-01

    Full Text Available We report a patient with lung cancer. The first PET/CT imaging revealed hypermetabolic mass in the left aortopulmonary region and hypermetabolic nodule in the anterior segment of the upper lobe of the left lung. After completing chemotherapy and radiotherapy against the primary mass in the left lung, the patient underwent a second PET/CT examination for evaluation of treatment response. This test demonstrated, compared with the first PET/CT, an increase in the size and metabolic activity of the primary mass in the left lung in addition to multiple, pathologic-sized, hypermetabolic metastatic lymph nodes as well as multiple metastatic sclerotic areas in bones. These findings were interpreted as progressive disease. In addition, an asymmetrical FDG uptake was noticed at the level of right vocal cord. During follow-up, a laryngoscopy was performed, which demonstrated left vocal cord paralysis with no apparent mass. Thus, we attributed the paralytic appearance of the left vocal cord to infiltration of the left recurrent laryngeal nerve by the primary mass located in the apical region of the left lung. In conclusion, the knowledge of this pitfall is important to avoid false-positive PET results.

  17. Left-handed wrestlers are more successful.

    Science.gov (United States)

    Ziyagil, Mehmet Akif; Gursoy, Recep; Dane, Senol; Yuksel, Ramazan

    2010-08-01

    It has been reported that there is a high proportion of left-handers among top athletes in different sports. In this study, the goal was to examine the rate of left-handedness in the top wrestlers at the world championships for achievement by left-handed wrestlers. The rate of left-handedness was higher in wrestlers with medal honors compared to wrestlers without medals for both men and women. The winning numbers and match degrees were higher in the left-handed wrestlers than in both right- and mixed-handed wrestlers among top international wrestlers.

  18. Slipped upper femoral epiphysis with hemophilia A

    Directory of Open Access Journals (Sweden)

    Iyer Deepa

    2007-01-01

    Full Text Available A 13-year-old boy who had hemophilia A was reported with pain in the left thigh and hip on walking. He had no history of trauma. Severe hemophilia A is diagnosed with a Factor VIII level of < 1 iu/dl. The presumptive diagnosis was that of a spontaneous bleed into the hip joint. Factor VIII mutational analysis revealed a C to G substitution at nucleotide 6683 which results in a cystine change at codon 2194. However, the symptoms persisted and an X-ray demonstrated the presence of an acute on chronic slip of the upper femoral epiphysis. The patient was transferred to the center treating his hemophilia where the hip was pinned in situ under cover with Factor VIII. This case demonstrates the need to be aware of a possible traumatic diagnosis of hip pain in a hemophiliac child with a longstanding history of spontaneous bleeding into joints.

  19. Giant and thrombosed left ventricular aneurysm

    Institute of Scientific and Technical Information of China (English)

    Jose; Alberto; de; Agustin; Jose; Juan; Gomez; de; Diego; Pedro; Marcos-Alberca; Jose; Luis; Rodrigo; Carlos; Almeria; Patricia; Mahia; Maria; Luaces; Miguel; Angel; Garcia-Fernandez; Carlos; Macaya; Leopoldo; Perez; de; Isla

    2015-01-01

    Left ventricular aneurysms are a frequent complication of acute extensive myocardial infarction and are most commonly located at the ventricular apex. A timely diagnosis is vital due to the serious complications that can occur,including heart failure,thromboembolism,or tachyarrhythmias. We report the case of a 78-yearold male with history of previous anterior myocardial infarction and currently under evaluation by chronic heart failure. Transthoracic echocardiogram revealed a huge thrombosed and calcified anteroapical left ventricular aneurysm. Coronary angiography demonstrated that the left anterior descending artery was chronically occluded,and revealed a big and spherical mass with calcified borders in the left hemithorax. Left ventriculogram confirmed that this spherical mass was a giant calcified left ventricular aneurysm,causing very severe left ventricular systolic dysfunction. The patient underwent cardioverter-defibrillator implantation for primary prevention.

  20. Giant and thrombosed left ventricular aneurysm.

    Science.gov (United States)

    de Agustin, Jose Alberto; de Diego, Jose Juan Gomez; Marcos-Alberca, Pedro; Rodrigo, Jose Luis; Almeria, Carlos; Mahia, Patricia; Luaces, Maria; Garcia-Fernandez, Miguel Angel; Macaya, Carlos; de Isla, Leopoldo Perez

    2015-07-26

    Left ventricular aneurysms are a frequent complication of acute extensive myocardial infarction and are most commonly located at the ventricular apex. A timely diagnosis is vital due to the serious complications that can occur, including heart failure, thromboembolism, or tachyarrhythmias. We report the case of a 78-year-old male with history of previous anterior myocardial infarction and currently under evaluation by chronic heart failure. Transthoracic echocardiogram revealed a huge thrombosed and calcified anteroapical left ventricular aneurysm. Coronary angiography demonstrated that the left anterior descending artery was chronically occluded, and revealed a big and spherical mass with calcified borders in the left hemithorax. Left ventriculogram confirmed that this spherical mass was a giant calcified left ventricular aneurysm, causing very severe left ventricular systolic dysfunction. The patient underwent cardioverter-defibrillator implantation for primary prevention.

  1. Asymptomatic post-rheumatic giant left atrium.

    Science.gov (United States)

    Özkartal, Tardu; Tanner, Felix C; Niemann, Markus

    2016-06-26

    A 78-year-old asymptomatic woman was referred to our clinic for a second opinion regarding indication for mitral valve surgery. An echocardiogram showed a moderate mitral stenosis with a concomitant severe regurgitation. The most striking feature, however, was a giant left atrium with a parasternal anteroposterior diameter of 79 mm and a left atrial volume index of 364 mL/m². There are various echocardiographic definitions of a giant left atrium, which are mainly based on measurements of the anteroposterior diameter of the left atrium using M-mode in the parasternal long axis view. Since the commonly accepted method for echocardiographic evaluation of left atrial size is left atrial volume index, we propose a cut-off value of 140 mL/m(2) for the definition of a "giant left atrium".

  2. Upper Carboniferous herbaceous lycopsids

    Energy Technology Data Exchange (ETDEWEB)

    Thomas, B.A. [University of Wales, Cardigan (United Kingdom). Dept. of Geography

    1997-01-01

    Herbaceous lycopsids are often overlooked in palaeobotanical studies because of problems of morphological interpretation and identification. The literature on Euramerican Upper Carboniferous herbaceous lycopsids is reviewed on those species referred to the genera Selaginellites, Lycopodites, Paurodendron, Carinostrobus, Miadesmia, Spencerites and the identification of some specimens is challenged. The stratigraphical range of these lycopsids and those of dispersed spores referable to them are also reviewed and suggestions are given for the relatively late appearance of many of these lycopsids in the Euramerican Coal Measures swamps. It is suggested that anisophyllous Selaginella-like lycopsids made their first appearance in the Bolsovian (ex Westphalian C) of the Saar-Lorraine intramontane basin. Evidence from studies of coal balls and dispersed spore assemblages confirm that herbaceous lycopsids were most abundantly present in open-moor communities. Certain species of these herbaceous lycopsids, the Selaginella-like ones, are included within the extant genus Selaginella Linnaeus. For this reason a number of new combinations are proposed.

  3. Anatomic considerations for abdominally placed permanent left ventricular assist devices.

    Science.gov (United States)

    Parnis, S M; McGee, M G; Igo, S R; Dasse, K; Frazier, O H

    1989-01-01

    To determine anatomic parameters for a permanent, electrically actuated left ventricular assist device (LVAD), the effects of abdominal placement of pneumatic LVADs used as temporary support for patients awaiting heart transplantation was studied. Understanding the anatomic constraints imposed by the abdominal viscera in LVAD placement is crucial, because improper placement can result in compression or obstruction of adjacent structures. Anatomic compatibility was assessed in four men (age 22-48 years) who were supported by the LVAD for over 1 month (range 35-132 days). The pump was intraperitoneally placed in the left upper quadrant. Radiographic techniques were employed, including CT scanning (with patients supine) and contrast imaging (patients in anatomical position), and the pump and conduits appeared to be properly positioned, with minimal compression of the body of the stomach, and no obstruction of adjacent organs. Three patients returned to a solid food diet and exercised daily by stationary cycling and walking. No signs of migration or erosion of the pump were present at the time of LVAD removal and cardiac transplantation. Successful clinical experience with short-term use of the LVAD suggests that the electrically actuated device can be well tolerated in patients requiring permanent left ventricular assistance.

  4. Nepticulidae from the Volga and Ural region

    NARCIS (Netherlands)

    Nieukerken, van E.J.; Zolotuhin, V.V.; Mistchenko, A.

    2004-01-01

    Abstract. The Nepticulidae of the Russian provinces (oblasts) Ul’yanovsk, Samara, Saratov, Volgograd, Astrakhan and Chelyabinsk and the Kalmyk Republic are listed. We record 60 species, including two only previously recorded, 28 species only on the basis of leafmines (indicated with an *). Seventeen

  5. Bilateral and multiple cavitation sounds during upper cervical thrust manipulation

    Directory of Open Access Journals (Sweden)

    Dunning James

    2013-01-01

    Full Text Available Abstract Background The popping produced during high-velocity, low-amplitude (HVLA thrust manipulation is a common sound; however to our knowledge, no study has previously investigated the location of cavitation sounds during manipulation of the upper cervical spine. The primary purpose was to determine which side of the spine cavitates during C1-2 rotatory HVLA thrust manipulation. Secondary aims were to calculate the average number of pops, the duration of upper cervical thrust manipulation, and the duration of a single cavitation. Methods Nineteen asymptomatic participants received two upper cervical thrust manipulations targeting the right and left C1-2 articulation, respectively. Skin mounted microphones were secured bilaterally over the transverse process of C1, and sound wave signals were recorded. Identification of the side, duration, and number of popping sounds were determined by simultaneous analysis of spectrograms with audio feedback using custom software developed in Matlab. Results Bilateral popping sounds were detected in 34 (91.9% of 37 manipulations while unilateral popping sounds were detected in just 3 (8.1% manipulations; that is, cavitation was significantly (P Conclusions Cavitation was significantly more likely to occur bilaterally than unilaterally during upper cervical HVLA thrust manipulation. Most subjects produced 3–4 pops during a single rotatory HVLA thrust manipulation targeting the right or left C1-2 articulation; therefore, practitioners of spinal manipulative therapy should expect multiple popping sounds when performing upper cervical thrust manipulation to the atlanto-axial joint. Furthermore, the traditional manual therapy approach of targeting a single ipsilateral or contralateral facet joint in the upper cervical spine may not be realistic.

  6. Clinical psychomotor skills among left and right handed medical students: are the left-handed medical students left out?

    OpenAIRE

    2016-01-01

    Background There is a growing perception that the left handed (LH) medical students are facing difficulties while performing the clinical tasks that involve psychomotor skill, although the evidence is very limited and diverse. The present study aimed to evaluate the clinical psychomotor skills among Right-handed (RH) and left-handed (LH) medical students. Methods For this study, 54 (27 left handed and 27 right handed) first year medical students were selected. They were trained for different ...

  7. T-Bar Utilization for Concomitant Coronary Artery Bypass Graft Operation and Left Upper Lobectomy.

    Science.gov (United States)

    Mitropoulos, Fotios; Kanakis, Meletios A; Apostolou, Anastasios; Chatzis, Andrew; Contrafouris, Constantinos; Apostolidis, Christos; Lioulias, Achilleas

    2016-01-01

    Management in patients with coexisting coronary artery disease and lung carcinoma is usually a two-stage operation, with the cardiac surgery procedure followed by pulmonary resection at a later time. Delayed tumor resection on the other hand may be detrimental. Off-pump coronary artery bypass grafting could facilitate concomitant lung resection at one stage via median sternotomy. T-bar retractor may be a useful tool in the surgical approach of this combined operation.

  8. T-Bar Utilization for Concomitant Coronary Artery Bypass Graft Operation and Left Upper Lobectomy

    Directory of Open Access Journals (Sweden)

    Fotios Mitropoulos

    2016-01-01

    Full Text Available Management in patients with coexisting coronary artery disease and lung carcinoma is usually a two-stage operation, with the cardiac surgery procedure followed by pulmonary resection at a later time. Delayed tumor resection on the other hand may be detrimental. Off-pump coronary artery bypass grafting could facilitate concomitant lung resection at one stage via median sternotomy. T-bar retractor may be a useful tool in the surgical approach of this combined operation.

  9. Upper bounds for centerlines

    CERN Document Server

    Bukh, Boris

    2011-01-01

    In 2008, Bukh, Matousek, and Nivasch conjectured that for every n-point set S in R^d and every k, 0 <= k <= d-1, there exists a k-flat f in R^d (a "centerflat") that lies at "depth" (k+1) n / (k+d+1) - O(1) in S, in the sense that every halfspace that contains f contains at least that many points of S. This claim is true and tight for k=0 (this is Rado's centerpoint theorem), as well as for k = d-1 (trivial). Bukh et al. showed the existence of a (d-2)-flat at depth (d-1) n / (2d-1) - O(1) (the case k = d-2). In this paper we concentrate on the case k=1 (the case of "centerlines"), in which the conjectured value for the leading constant is 2/(d+2). We prove that 2/(d+2) is an *upper bound* for the leading constant. Specifically, we show that for every fixed d and every n there exists an n-point set in R^d for which no line in R^d lies at depth larger than 2n/(d+2) + o(n). This point set is the "stretched grid"---a set which has been previously used by Bukh et al. for other related purposes.

  10. [Pathomimia in upper limb].

    Science.gov (United States)

    Maalla, Riadh; Bensalma, Hichem; Hamdi, Lamia; Assel, Salem; Bahri, Hichem; Hamdi, Abdelaziz

    2005-03-01

    Pathomimia, or factitious disorders, are characterized by producing symptoms voluntarily with the intention of playing the role of the patient. Inspite of being considerd as a psychatric disorder, pathomimuia is often encountered in the daily professional life of doctors without being recognized or diagnosed. There are various clinical aspects of pathomimia. The items that decide the orientation of the diagnosis are essentially the uncommon and odd expression of the reported symptoms, A capricious evolution as well as the multiplicity of the past medical cases. We report a group of five patients who were followed and treated between the years 2000 and 2003. This group was composed of three men and two women with an average age of 30 years. In three cases, we found the notion of skin injury. In one case, we noted a median nerve lesion in the elbow and once in the right upper member. The evolution was performed towards recidives of the initial symptomatology with more or less long periods of improvements.

  11. Upper airway resistance syndrome.

    Science.gov (United States)

    Montserrat, J M; Badia, J R

    1999-03-01

    This article reviews the clinical picture, diagnosis and management of the upper airway resistance syndrome (UARS). Presently, there is not enough data on key points like the frequency of UARS and the morbidity associated with this condition. Furthermore, the existence of LIARS as an independent sleep disorder and its relation with snoring and obstructive events is in debate. The diagnosis of UARS is still a controversial issue. The technical limitations of the classic approach to monitor airflow with thermistors and inductance plethysmography, as well as the lack of a precise definition of hypopnea, may have led to a misinterpretation of UARS as an independent diagnosis from the sleep apnea/hypopnea syndrome. The diagnosis of this syndrome can be missed using a conventional polysomnographic setting unless appropriate techniques are applied. The use of an esophageal balloon to monitor inspiratory effort is currently the gold standard. However, other sensitive methods such as the use of a pneumotachograph and, more recently, nasal cannula/pressure transducer systems or on-line monitoring of respiratory impedance with the forced oscillation technique may provide other interesting possibilities. Recognition and characterization of this subgroup of patients within sleep breathing disorders is important because they are symptomatic and may benefit from treatment. Management options to treat UARS comprise all those currently available for sleep apnea/hypopnea syndrome (SAHS). However, the subset of patients classically identified as LIARS that exhibit skeletal craneo-facial abnormalities might possibly obtain further benefit from maxillofacial surgery.

  12. Monomelic amyotrophy (hirayama disease) with upper motor neuron signs: a case report.

    Science.gov (United States)

    Yoo, Seung Don; Kim, Hee-Sang; Yun, Dong Hwan; Kim, Dong Hwan; Chon, Jinmann; Lee, Seung Ah; Lee, Sung Yong; Han, Yoo Jin

    2015-02-01

    Monomelic amyotrophy (MMA), also known as Hirayama disease, is a sporadic juvenile muscular atrophy in the distal upper extremities. This disorder rarely involves proximal upper extremities and presents minimal sensory symptoms with no upper motor neuron (UMN) signs. It is caused by anterior displacement of the posterior dural sac and compression of the cervical cord during neck flexion. An 18-year-old boy visited our clinic with a 5-year history of left upper extremity pain and slowly progressive weakness affecting the left shoulder. Atrophy was present in the left supraspinatus and infraspinatus. On neurological examination, positive UMN signs were evident in both upper and lower extremities. Electrodiagnostic study showed root lesion involving the fifth to seventh cervical segment of the cord with chronic and ongoing denervation in the fifth and sixth cervical segment innervated muscles. Cervical magnetic resonance imaging (MRI) showed asymmetric cord atrophy apparent in the left side and intramedullary high signal intensity along the fourth to sixth cervical vertebral levels. With neck flexion, cervical MRI revealed anterior displacement of posterior dural sac, which results in the cord compression of those segments. The mechanisms of myelopathy in our patient seem to be same as that of MMA. We report a MMA patient involving proximal limb with UMN signs in biomechanical concerns and discuss clinical importance of cervical MRI with neck flexion. The case highlights that clinical variation might cause misdiagnosis.

  13. Photonic crystal with left-handed components

    CERN Document Server

    Markos, Peter

    2015-01-01

    We show that the periodic array of left-handed cylinders possesses a rich spectrum of guided modes when the negative permeability of cylinders equals exactly to minus value of permeability of embedding media. These resonances strongly influences propagation of electromagnetic waves through photonic structures made from left-handed materials. A series of Fano resonances excited by incident wave destroys the band frequency spectrum of square array of left-handed cylinders and increases considerably the absorption of transmitted waves.

  14. Left handedness and Leadership in Interactive Contests

    CERN Document Server

    Mukherjee, Satyam

    2013-01-01

    Left-handedness is known to provide an advantage at top level at many sports involving interactive contests. Earlier studies revealed that this is because of the innate superiority of left-handed contestants. Again, most of the renowned leaders of the world are known to have been left-handed. We analyze the data of batting and bowling performance in Cricket and verify the advantage of left-handedness for batsmen. For bowlers, left-handedness provide no advantage. Leadership play an important role in politics, sports and mentorship. In this paper we show that Cricket captains who bat left-handed have a strategic advantage over the right-handed captains in Test cricket. Our results demonstrate that critical importance of left-handedness and successful leadership. Our study shows that left-handed captains lead in more number of games and are significantly more successful than right-handed captains . Interestingly left-handed captains have a higher batting average than the right-handed counterparts, perhaps indic...

  15. Anarchy, socialism and a Darwinian left.

    Science.gov (United States)

    Clarke, Ellen

    2006-03-01

    In A Darwinian left Peter Singer aims to reconcile Darwinian theory with left wing politics, using evolutionary game theory and in particular a model proposed by Robert Axelrod, which shows that cooperation can be an evolutionarily successful strategy. In this paper I will show that whilst Axelrod's model can give support to a kind of left wing politics, it is not the kind that Singer himself envisages. In fact, it is shown that there are insurmountable problems for the idea of increasing Axelrodian cooperation within a welfare state. My surprising conclusion will be that a Darwinian left worthy of the name would be anarchistic.

  16. Left-sided omental torsion: CT appearance

    Energy Technology Data Exchange (ETDEWEB)

    Aoun, N.; Haddad-Zebouni, S.; Slaba, S.; Ghossain, M. [Hotel-Dieu de France Hospital, Beirut (Lebanon). Dept. of Radiology; Noun, R. [Hotel-Dieu de France Hospital, Beirut (Lebanon). Dept. of General Surgery

    2001-01-01

    A 34-year-old male presented with exquisite left flank pain. Computed tomography showed a hyperdense vascular structure surrounded by whirling linear streaks situated in the greater omentum under the splenic flexure of the colon. Omental stranding extended caudally into the pelvis where part of the inflamed omentum entered a left inguinal hernia sac. Surgery revealed left-sided torsion of the greater omentum. Left-sided omental torsion is infrequent and pre-operative diagnosis is rarely established. The CT findings of an omental fatty mass with a whirling pattern is characteristic of omental torsion. Preoperative diagnosis is important because conservative management has been suggested. (orig.)

  17. Cilia in vertebrate left-right patterning.

    Science.gov (United States)

    Dasgupta, Agnik; Amack, Jeffrey D

    2016-12-19

    Understanding how left-right (LR) asymmetry is generated in vertebrate embryos is an important problem in developmental biology. In humans, a failure to align the left and right sides of cardiovascular and/or gastrointestinal systems often results in birth defects. Evidence from patients and animal models has implicated cilia in the process of left-right patterning. Here, we review the proposed functions for cilia in establishing LR asymmetry, which include creating transient leftward fluid flows in an embryonic 'left-right organizer'. These flows direct asymmetric activation of a conserved Nodal (TGFβ) signalling pathway that guides asymmetric morphogenesis of developing organs. We discuss the leading hypotheses for how cilia-generated asymmetric fluid flows are translated into asymmetric molecular signals. We also discuss emerging mechanisms that control the subcellular positioning of cilia and the cellular architecture of the left-right organizer, both of which are critical for effective cilia function during left-right patterning. Finally, using mosaic cell-labelling and time-lapse imaging in the zebrafish embryo, we provide new evidence that precursor cells maintain their relative positions as they give rise to the ciliated left-right organizer. This suggests the possibility that these cells acquire left-right positional information prior to the appearance of cilia.This article is part of the themed issue 'Provocative questions in left-right asymmetry'. © 2016 The Author(s).

  18. Upper medium segment cooling down

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    <正>The sluggish growth of the passenger car market in top provinces was also reflected in a depression of the upper medium segment. In Jan-Apr, 2008, the top 3 upper medium models accounting for nearly 40% of this segment performed poorly, with the Passat-Lingyu and the Accord decreasing. The Camry also saw a decrease in three top provinces: Guangdong,

  19. Left atrial systolic force in hypertensive patients with left ventricular hypertrophy: the LIFE study

    DEFF Research Database (Denmark)

    Chinali, M.; Simone, G. de; Wachtell, K.;

    2008-01-01

    systolic force and left ventricular geometry and function have not been investigated in high-risk hypertrophic hypertensive patients. Participants in the Losartan Intervention For Endpoint reduction in hypertension echocardiography substudy without prevalent cardiovascular disease or atrial fibrillation (n......In hypertensive patients without prevalent cardiovascular disease, enhanced left atrial systolic force is associated with left ventricular hypertrophy and increased preload. It also predicts cardiovascular events in a population with high prevalence of obesity. Relations between left atrial...... with larger left ventricular diameter and higher left ventricular mass index (both P ventricular hypertrophy was greater (84 vs. 64%; P

  20. Left-Handers and Cognitive Proficiency.

    Science.gov (United States)

    Wellman, Mary M.

    In this research report, the influences of handedness, hand position while writing, and familial sinistrality (presence of left-handed relatives) on children's intellectual, reading, and visual-motor performance were investigated. Forty left- and right-handed children between the ages of 7 and 10 served as subjects. To assess hand positions, an…

  1. A Note on Left Regular Semiring

    Directory of Open Access Journals (Sweden)

    N. Sulochana

    2016-08-01

    Full Text Available In this paper we have focused on the additive and multiplicative identity „e‟ and determine the additive and multiplicative semigroups. Here we established that, A semiring S in which (S, + and (S, • are left singular semigroups, then S is a left regular semiring. We have framed an example for this proposition by considering a two element set

  2. Pure Left Neglect for Arabic Numerals

    Science.gov (United States)

    Priftis, Konstantinos; Albanese, Silvia; Meneghello, Francesca; Pitteri, Marco

    2013-01-01

    Arabic numerals are diffused and language-free representations of number magnitude. To be effectively processed, the digits composing Arabic numerals must be spatially arrangspan>ed along a left-to-right axis. We studied one patient (AK) to show that left neglect, after right hemisphere damage, can selectively impair the computation of the spatial…

  3. Pure Left Neglect for Arabic Numerals

    Science.gov (United States)

    Priftis, Konstantinos; Albanese, Silvia; Meneghello, Francesca; Pitteri, Marco

    2013-01-01

    Arabic numerals are diffused and language-free representations of number magnitude. To be effectively processed, the digits composing Arabic numerals must be spatially arranged along a left-to-right axis. We studied one patient (AK) to show that left neglect, after right hemisphere damage, can selectively impair the computation of the spatial…

  4. Left Paraduodenal Hernia: An Autopsy Case

    DEFF Research Database (Denmark)

    Omland, Silje Haukali; Hougen, Hans Petter

    2011-01-01

    We present a case of a left paraduodenal hernia diagnosed at autopsy. A left paraduodenal hernia is an internal hernia of congenital origin due to the abnormal rotation of the midgut during embryonic development. Internal hernias are a rare cause of intestinal obstruction, with the paraduodenal...

  5. Variant course of left gonadal artery

    Directory of Open Access Journals (Sweden)

    Mamatha Y

    2010-08-01

    Full Text Available The variations of the arteries that develop from the mesonephric arteries, including renal, gonadal and suprarenal arteries are common. Variations in the anatomical relationship of the gonadal arteries to the renal vessels are frequently reported. We here present a case of an unusual origin and course of a left testicular artery arching over left renal vein. The arching of the left testicular artery over the left renal vein could be a possible cause of the left renal vein compression. Therefore, knowledge of the possible existence of arching gonadal vessels in relation to the renal vein could be of paramount importance to vascular surgeons and urologists during surgery in the retroperitoneal region.

  6. A giant left main trunk and left circumflex artery-to-right ventricle fistula

    Directory of Open Access Journals (Sweden)

    Zhao-hui Peng

    2014-01-01

    Full Text Available Coronary artery fistula including the left trunk and left circumflex is uncommon. We present a 24-year-old male patient with a giant left main trunk and left circumflex artery to right ventricle fistula, which is diagnosed by transthoracic echocardiography and coronary computed tomography angiography. In this paper, the case report is to provide a better understanding of clinical characteristics for this disease.

  7. Effect of One Carpet Weaving Workstation on Upper Trapezius Fatigue

    Directory of Open Access Journals (Sweden)

    Neda Mahdavi

    2016-03-01

    Full Text Available Introduction: This study aimed to investigate the effect of carpet weaving at a proposed workstation on Upper Trapezius (UTr fatigue during a task cycle. Fatigue in the shoulder is one of the most important precursors for upper limb musculoskeletal disorders. One of the most prevalent musculoskeletal disorders between carpet weavers is disorder of the shoulder region. Methods: This cross-sectional study, included eight females and three males. During an 80-minute cycle of carpet weaving, Electromyography (EMG signals of right and left UTr were recorded by the surface EMG, continuously. After raw signals were processed, MPF and RMS were considered as EMG amplitude and frequency parameters. Time series model and JASA methods were used to assess and classify the EMG parameter changes during the working time. Results: According to the JASA method, 58%, 16%, 8% and 8% of the participants experienced fatigue, force increase, force decrease and recovery, respectively in the right UTr. Also, 50%, 25%, 8% and 16% of the participants experienced fatigue, force increase, force decrease and recovery, respectively in the left UTr. Conclusions: For the major portion of the weavers, dominant status in Left and right UTr was fatigue, at the proposed workstation during a carpet weaving task cycle. The results of the study provide detailed information for optimal design of workstations. Further studies should focus on fatigue in various muscles and time periods for designing an appropriate and ergonomics carpet weaving workstation

  8. TMS over the Left Angular Gyrus Impairs the Ability to Discriminate Left from Right

    Science.gov (United States)

    Hirnstein, Marco; Bayer, Ulrike; Ellison, Amanda; Hausmann, Markus

    2011-01-01

    The underlying cognitive and neural mechanisms of the ability to discriminate left from right are hardly explored. Clinical studies from patients with impairments of left-right discrimination (LRD) and neuroimaging data suggest that the left angular gyrus is particularly involved in LRD. Moreover, it is argued that the often reported sex…

  9. Left leg apraxia after anterior cerebral artery territory infarction: functional analysis using single-photon emission computed tomography.

    Science.gov (United States)

    Ito, Ikuno; Ito, Kimiteru; Shindo, Naoko

    2013-01-01

    Left hand apraxia is known as a unique symptom of callosal apraxia, but lower limb symptoms are rarely mentioned. We report a patient who experienced left ideomotor apraxia affecting both the upper and lower limbs after a stroke in the territory of the right anterior cerebral artery. His spontaneous gait was normal, but he was unable to move his left leg intentionally either by verbal command or by imitation. His leg symptoms gradually improved over time. We evaluated the change in cerebral blood flow in this patient using single-photon emission computed tomography. The results showed an increase in blood flow in the posterior corpus callosum; therefore, we suggested that the callosal pathway might contribute to left leg as well as left hand volitional movement. Copyright © 2013 S. Karger AG, Basel.

  10. Reversible Motor Paralysis and Early Cardiac Rehabilitation in Patients With Advanced Heart Failure Receiving Left Ventricular Assist Device Therapy.

    Science.gov (United States)

    Amao, Rie; Imamura, Teruhiko; Nakahara, Yasuo; Noguchi, Satoko; Kinoshita, Osamu; Yamauchi, Haruo; Ono, Minoru; Haga, Nobuhiko

    2016-12-02

    Advanced heart failure (HF) is sometimes complicated with brain impairment because of a microthrombosis caused by decreased left ventricular contraction or reduced brain circulation. Some patients may recover after left ventricular assist device (LVAD) implantation. However, little is known about the perioperative therapeutic strategy in patients suffering from such complications, particularly from a cardiac rehabilitation viewpoint. We report on a 58-year-old male patient with a previous history of poliomyelitis and a light paralysis in the left upper extremity, who suffered left hemiplegia with no evidence of stroke after hemodynamic deterioration. The combination therapy of perioperative cardiac rehabilitation and LVAD therapy improved his left hemiplegia as well as activities of daily living, and the patient was discharged on foot on postoperative day 72 after briefing the family on LVAD home management. Early initiation of cardiac rehabilitation before LVAD implantation may be a key for the smooth discharge and resocialization of patients suffering from brain impairment complicated with advanced HF.

  11. Dissociation between distal and proximal left limb agraphia and agraphesthesia in a patient with a callosal disconnection syndrome.

    Science.gov (United States)

    Bachoud-Lévi, A C; Ergis, A M; Cesaro, P; Degos, J D

    2000-06-01

    A few neuropsychological studies have suggested the existence of bilateral hemispheric representations for the proximal parts of the limbs in humans. We report the case of a patient who presented with a callosal disconnection syndrome, which at a later stage of disease became restricted to left agraphia, left agraphesthesia and left auditory extinction. The anomic character of the agraphesthesia was demonstrated. Tactile naming was normal, which allows us to conclude that separate callosal pathways related to the left language areas transmit information for graphesthesia and tactile naming. Agraphia and agraphesthesia were not observed when the proximal part of the left upper limb was utilized. These observations support the conclusion that writing and graphesthesia with the proximal part of the limb can be mediated by the ipsilateral cortex.

  12. Bilateral and multiple cavitation sounds during upper cervical thrust manipulation.

    Science.gov (United States)

    Dunning, James; Mourad, Firas; Barbero, Marco; Leoni, Diego; Cescon, Corrado; Butts, Raymond

    2013-01-15

    The popping produced during high-velocity, low-amplitude (HVLA) thrust manipulation is a common sound; however to our knowledge, no study has previously investigated the location of cavitation sounds during manipulation of the upper cervical spine. The primary purpose was to determine which side of the spine cavitates during C1-2 rotatory HVLA thrust manipulation. Secondary aims were to calculate the average number of pops, the duration of upper cervical thrust manipulation, and the duration of a single cavitation. Nineteen asymptomatic participants received two upper cervical thrust manipulations targeting the right and left C1-2 articulation, respectively. Skin mounted microphones were secured bilaterally over the transverse process of C1, and sound wave signals were recorded. Identification of the side, duration, and number of popping sounds were determined by simultaneous analysis of spectrograms with audio feedback using custom software developed in Matlab. Bilateral popping sounds were detected in 34 (91.9%) of 37 manipulations while unilateral popping sounds were detected in just 3 (8.1%) manipulations; that is, cavitation was significantly (P thrust manipulation was 3.57 (95% CI: 3.19, 3.94) and the mean number of pops per subject following both right and left C1-2 thrust manipulations was 6.95 (95% CI: 6.11, 7.79). The mean duration of a single audible pop was 5.66 ms (95% CI: 5.36, 5.96) and the mean duration of a single manipulation was 96.95 ms (95% CI: 57.20, 136.71). Cavitation was significantly more likely to occur bilaterally than unilaterally during upper cervical HVLA thrust manipulation. Most subjects produced 3-4 pops during a single rotatory HVLA thrust manipulation targeting the right or left C1-2 articulation; therefore, practitioners of spinal manipulative therapy should expect multiple popping sounds when performing upper cervical thrust manipulation to the atlanto-axial joint. Furthermore, the traditional manual therapy approach of

  13. Changes of Left Ventricular Geometry Shape and Left Ventricular Regional Function in Patients With Dilated Cardiomyopathy

    Institute of Scientific and Technical Information of China (English)

    Liang-yu WANG; Ming-xing XIE; Qing-bo LI; Ping CHEN; Zhi-xiong CAI; Zhi-dan ZHU

    2009-01-01

    Objectives To assess the left ventricle regional systolic and diastolic function, left ventricle geometry and left venti-tie sphericity indexes in patients with dilated cardiomyopathy (DCM) by quantitative tissue velocity imaging (QTVI). Methods Thirty normal subjects and 52 DCM patients underwent QTVI and colour Doppler flow imaging study in or-der to measure the left ventricular regional function along left ventricle apical long-axis view and the left ventricle geom-etry. Peak tissue velocities of left venticle regional muscular tissue during systole (Vs), systolic acceleration (a), ear-ly diastole(Ve) and left atrium contraction(Va) along left venticle apical long axis view were measured. The indexes of left ventdcular regional systolic and diastolic function were mearsured at the same time. The left ventricle geometry shape was reflected from the systolic and diastolic sphericity index (Sis and Sid), the left ventricular ejection fraction (LVEF) and D wave/A wave (PVd/Pva) of pulmonary veins flowing spectrum reflected the global left ventricular systolic and diastolic function. The Vs, Ve, Va, a, PVd/Pva ratio, LVEF, Sis, Sid and their correlations between normal subjects and patients with DCM were compared and analyzed. Results Vs, Ve, Va, a, PVd/Pva, Sis and Sid in patients with DCM were lower than those in normal persons. There were significant relations between Sis and a (r=0.6142, P<0.05), Ve/Va and Sid (r=0.6271, P<0.05). Conclusions QTVI offer a newer method which has a higher sensitivity and accuracy in evaluating the left venticle regional systolic and diastolic function in DCM patients. There was significant relation between regional cardiac function and left venticle sphericity.

  14. Upper Kenai River Cooperative Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Upper Kenai River Cooperative Plan is the product of a joint effort of the Chugach National Forest, Kenai National Wildlife Refuge, Alaska Division of Parks and...

  15. Upper atmosphere pollution measurements (GASP)

    Science.gov (United States)

    Rudey, R. A.; Holdeman, J. D.

    1975-01-01

    The environmental effects are discussed of engine effluents of future large fleets of aircraft operating in the stratosphere. Topics discussed include: atmospheric properties, aircraft engine effluents, upper atmospheric measurements, global air sampling, and data reduction and analysis

  16. [Social aspects of left-handedness].

    Science.gov (United States)

    Milenković, Sanja; Belojević, Goran; Kocijancić, Radojka

    2010-01-01

    Throughout human history left-handedness has been considered as sinful. It has been associated with the devil, weakness, female gender, unhealthiness, evil, something that has to be turned to a "good"--right side by force. Left-handedness is being more and more acceptable at rational level, but in everyday life it is still considered to be unusual if someone writes with the left hand. Lessening of the number of lefthanders is associated with ageing. There are about 13% lefthanders among people in twenties and less than 1% lefthanders among those in eighties. This finding may be explaned with more pronounced socio-cultural pressure on left-handed people in the past, compared to nowadays. On the other hand, this may also support the hypothesis about a reduced life span of lefthanded people. With cross-exercising of left-handedness, certain typical characteristics and behavioural patterns appear in these people. This was a sort of provoked behaviour and an attack on the integrity of an emotional attitude toward oneself. Stuttering may also appear as a consequence of unsuccessful cross-exercising of left-handedness. The hypothesis about left-handedness as an advantage is supported with the reports about relatively more lefthanders in some specific groups such as: mathematicians, sculptors, architects, painters, musicians, actors, tennis players, as well as famous army commanders and rulers.

  17. Social aspects of left-handedness

    Directory of Open Access Journals (Sweden)

    Belojević Goran

    2010-01-01

    Full Text Available Throughout human history left-handedness has been considered as sinful. It has been associated with the devil, weakness, female gender, unhealthiness, evil, something that has to be turned to a “good” - right side by force. Left-handedness is being more and more acceptable at rational level, but in everyday life it is still considered to be unusual if someone writes with the left hand. Lessening of the number of lefthanders is associated with ageing. There are about 13% lefthanders among people in twenties and less than 1% lefthanders among those in eighties. This finding may be explaned with more pronounced socio-cultural pressure on left-handed people in the past, compared to nowadays. On the other hand, this may also support the hypothesis about a reduced life span of lefthanded people. With cross-exercising of left-handedness, certain typical characteristics and behavioral patterns appear in these people. This was a sort of provoked behavior and an attack on the integrity of an emotional attitude toward oneself. Stuttering may also appear as a consequence of unsuccessful cross-exercising of left-handedness. The hypothesis about left-handedness as an advantage is supported with the reports about relatively more lefthanders in some specific groups such as: mathematicians, sculptors, architects, painters, musicians, actors, tennis players, as well as famous army commanders and rulers.

  18. Surgical Treatment of Left Ventricular Pseudoaneurysm

    Science.gov (United States)

    Mujanovic, Emir; Bergsland, Jacob; Avdic, Sevleta; Stanimirovic-Mujanovic, Sanja; Kovacevic-Preradovic, Tamara; Kabil, Emir

    2014-01-01

    Introduction: Left ventricular pseudoaneurysm is a rare condition because in most instances ventricular free-wall rupture leads to fatal pericardial tamponade. Rupture of the free wall of the left ventricle is a cata­strophic complication of myocardial infarction, occurring in approximately 4% of pa­tients with infarcts, resulting in immediate collapse of the patient and electromechanical dissociation. In rare cases the rupture is contained by pericardial and fibrous tissue, and the result is a pseudoaneurysm. The left ventricular pseudoaneurysm contains only pericardial and fibrous elements in its wall-no myocardial tissue. Because such aneurysms have a strong tendency to rupture, this disorder may lead to death if it is left surgically untreated. Case report: In this case report, we present a patient who underwent successful repair of a left ventricular pseudoaneurysm, which followed a myocardial infarction that was caused by occlusion of the left circumflex coronary artery. Although repair of left ventricular pseudoaneurysm is still a surgical challenge, it can be performed with acceptable results in most patients. PMID:25568538

  19. Constraints on a left-right-symmetric electroweak theory

    Energy Technology Data Exchange (ETDEWEB)

    Beall, G.W.

    1982-01-01

    Several low-energy quantities are calculated in an attempt to constrain the parameters of a left-right-symmetric theory of electroweak interactions based on the group G = SU(2)/sub L/ x SU(2)/sub R/ x U(1). The quantities calculated are the K/sub L/-K/sub S/ difference, ..delta..m/sub K/, the CP-violation parameters, ..sigma.. and ..sigma..', and the electric dipole moment of the neutron, ..mu../sub n//sup e/. Calculations were performed using the free-quark effective Hamiltonian and generally assume either manifest or pseudo-manifest left-right symmetry. From these calculations an upper bound was placed on the W/sub L/-W/sub R/ mixing angle of /zeta/ approx.< 0.06, a lower bound on the mass of the right-handed W of M/sub R/ approx.> 1.6 TeV, and a tentative lower bound on the W/sub L/-W/sub R/ mixing angle of /zeta/ approx.> 10/sup -5/. If in addition we assume the minimal Higgs sector we find /zeta/ approx.< 1/420 and M/sub R/ approx.< 25 TeV.

  20. Extensive upper respiratory tract sarcoidosis.

    Science.gov (United States)

    Soares, Mafalda Trindade; Sousa, Carolina; Garanito, Luísa; Freire, Filipe

    2016-04-18

    Sarcoidosis is a chronic granulomatous disease of unknown aetiology. It can affect any part of the organism, although the lung is the most frequently affected organ. Upper airway involvement is rare, particularly if isolated. Sarcoidosis is a diagnosis of exclusion, established by histological evidence of non-caseating granulomas and the absence of other granulomatous diseases. The authors report a case of a man with sarcoidosis manifesting as a chronic inflammatory stenotic condition of the upper respiratory tract and trachea.

  1. Upper extremity amputations and prosthetics.

    Science.gov (United States)

    Ovadia, Steven A; Askari, Morad

    2015-02-01

    Upper extremity amputations are most frequently indicated by severe traumatic injuries. The location of the injury will determine the level of amputation. Preservation of extremity length is often a goal. The amputation site will have important implications on the functional status of the patient and options for prosthetic reconstruction. Advances in amputation techniques and prosthetic reconstructions promote improved quality of life. In this article, the authors review the principles of upper extremity amputation, including techniques, amputation sites, and prosthetic reconstructions.

  2. Clinical psychomotor skills among left and right handed medical students: are the left-handed medical students left out?

    National Research Council Canada - National Science Library

    Alnassar, Sami; Alrashoudi, Aljoharah Nasser; Alaqeel, Mody; Alotaibi, Hala; Alkahel, Alanoud; Hajjar, Waseem; Al-shaikh, Ghadeer; Alsaif, Abdulaziz; Haque, Shafiul; Meo, Sultan Ayoub

    2016-01-01

    There is a growing perception that the left handed (LH) medical students are facing difficulties while performing the clinical tasks that involve psychomotor skill, although the evidence is very limited and diverse...

  3. Ultrasound diagnosis of pulmonary sling with proximal stenosis of left pulmonary artery and patent arterial duct

    Directory of Open Access Journals (Sweden)

    Wojciech Mądry

    2013-03-01

    Full Text Available Authors discuss methods of echocardiographic diagnosis of the pulmonary sling with stenosis and hypoplasia of the left pulmonary artery and patent arterial duct with massive left‑to‑right shunt, based on a case of the newborn with resistant to treatment heart failure, with initial diagnosis of patent ductus arteriosus, referred to surgical treatment. The optimal echocardiographic views permitting establish diagnosis of the pulmonary sling were suggested. The special attention was paid to high parasternal and suprasternal views visualizing vessels of the upper mediastinum as well as characteristic differences between the normal and pathologic picture. The typical features of the echocardiogram suggesting pulmonary sling, like the lack of the left pulmonary artery in its expected position, and the abnormal branching pattern of the right pulmonary artery were indicated. The greatest diagnostic difficulties in visualization of the abnormal route of the left pulmonary artery were related to the presence of air‑containing tissues, like lungs and central airways between the ultrasound probe and area of interest. The other was the masking influence of the large patent arterial duct, that may mimic the left pulmonary artery arising from the pulmonary trunk. The other entities requiring differentiation with sling, like aplasia of the left lung, the direct or indirect aortic origin of the left pulmonary artery, were discussed. The role of other visualization technics, like computed 3D tomography, and magnetic nuclear resonance, as well as direct visualization of central airways with bronchoscopy in establishing precise diagnosis were stressed.

  4. Persistent Left Superior Vena Cava, The View of a Rare Case

    Directory of Open Access Journals (Sweden)

    H.Volkan Kara

    2013-10-01

    Full Text Available The glenohumeral joint is the most commonly dislocated joint in the human body. Anterior dislocatin is the most common type and posterior dislocations account for <1% of shoulder dislocations.  A 68-yearold woman was brought to the emergency department by ambulance  with shoulder pain following a fall from stairs. On local physical examination, there was severe pain on the left proximal humerus. The left arm was in internal rotation in the adducted position. Active and passive movements of the left shoulder were painful and limited. The neurovascular examination of the left upper extremity revealed no deficit. Radiographs of her left shoulder were performed and no significant pathology was identified in the left shoulder anteroposterior (AP X-ray (Figure 1. Axillary radiography could not be performed because of painful arm movements. Therefore, CT was performed to clarify any existing shoulder pathology (Figure 2. Closed reduction under conscious sedation was performed with longitudinal and lateral traction on the arm to protect the humeral head. Control CT was performed and this revealed that reduction had improved the shoulder (Figure 3. She was then treated with an arm sling and discharged with an outpatient orthopaedic control visit.

  5. Combined Rotation and Advancement Flap Reconstruction for a Defect of the Upper Lip: 2 Cases

    Directory of Open Access Journals (Sweden)

    Junsang Lee

    2012-05-01

    Full Text Available Many types of upper lip reconstruction have been introduced to treat defects after a tumorexcision or trauma. The authors treated two cases of upper lip defects. A 35-year-old womanpresented with a squamous cell carcinoma of the left upper lip that had invaded the cornerof the mouth. After resecting the tumor, the defect was 3.7×3.5 cm in size. A 52-year-oldwoman presented with a dog bite of the right upper lip. The defect measured 4.0×2.2 cm insize. The two cases were reconstructed by combined rotation and advancement of a cheekflap. This technique produced a good functional outcome that allowed for oral competenceand created an opening of adequate size. A combination of rotation and an advancementflap can be used to treat upper lip defects in a single-stage procedure. This approach producesa good functional and cosmetic outcome.

  6. Needlescopic surgery for left-sided colorectal cancer.

    Science.gov (United States)

    Mukai, Toshiki; Fukunaga, Yosuke; Ueno, Masashi; Nagayama, Satoshi; Fujimoto, Yoshiya; Konishi, Tsuyoshi; Akiyoshi, Takashi; Ono, Riki; Yamaguchi, Toshiharu

    2014-12-01

    Laparoscopic surgery has become the standard for colorectal cancers, but more minimally invasive surgery is continuously pursued. In June 2011, our institution started needlescopic surgery (NS). The aims of this study are to describe this technique and to investigate its feasibility for left-sided colorectal cancer surgery. From June 2011 to June 2013, 105 sigmoid colon and upper/middle rectal cancer patients underwent NS in our institution, involving one 5-mm port and three 3-mm ports, with the exception of an umbilical 12-mm port. A 10-mm scope is used through the umbilical 12-mm port, which will be extended to a small skin incision for specimen extraction. After dissection of the left colon, a 5-mm scope is inserted through the right lower 5-mm port and a linear stapler is inserted through the umbilical 12-mm port for rectal transection. The specimen is then extracted through umbilical incision, and the anastomosis is carried out by the double-staple technique. TNM staging is stage 0/I/II/III/IV = 0/31/32/31/11. Fifty-one patients underwent sigmoidectomy and 54 patients underwent anterior resection. There was no conversion to open surgery, but one patient required a change to a 5-mm port from one of the 3-mm ports. Mean operating time was 193 min and mean estimated blood loss was 12 ml. There were ten (9 %) postoperative complications: two anastomotic leaks requiring reoperation, two anastomotic hemorrhages, and one wound infection. There was no mortality. NS for left-sided colorectal cancer was a technically and oncologically feasible technique for selected patients.

  7. Leptogenesis in left-right symmetric theories

    CERN Document Server

    Joshipura, A S; Rodejohann, W

    2001-01-01

    The masses and mixing of the light left-handed neutrinos can be related to those of the heavy right-handed neutrinos in left-right symmetric theories. Properties of the light neutrinos are measured in terrestrial experiments and the CP-violating decays of their heavy counterparts produce a baryon asymmetry via the well-known leptogenesis mechanism. The left-handed Higgs triplet, present in left-right symmetric theories, modifies the usual see-saw formula. It is possible to relate the lepton asymmetry to the light neutrino parameters when the triplet and the top quark through the usual see-saw mechanism give dominant contribution to the neutrino mass matrix. We find that in this situation the small angle MSW and vacuum solutions produce reasonable asymmetry, whereas the large angle MSW case requires extreme fine-tuning of the three phases in the mixing matrix.

  8. Leptogenesis in left-right symmetric theories

    Energy Technology Data Exchange (ETDEWEB)

    Joshipura, Anjan S. E-mail: anjan@prl.ernet.in; Paschos, Emmanuel A. E-mail: paschos@physik.uni-dortmund.de; Rodejohann, Werner E-mail: rodejoha@xena.physik.uni-dortmund.de

    2001-09-17

    The masses and mixing of the light left-handed neutrinos can be related to those of the heavy right-handed neutrinos in left-right symmetric theories. Properties of the light neutrinos are measured in terrestrial experiments and the CP-violating decays of their heavy counterparts produce a baryon asymmetry via the well-known leptogenesis mechanism. The left-handed Higgs triplet, present in left-right symmetric theories, modifies the usual see-saw formula. It is possible to relate the lepton asymmetry to the light neutrino parameters when the triplet and the top quark through the usual see-saw mechanism give the dominant contribution to the neutrino mass matrix. We find that in this situation the small angle MSW and vacuum solutions produce reasonable asymmetry, whereas the large angle MSW case requires extreme fine-tuning of the three phases in the mixing matrix.

  9. Left-right symmetry and neutrino stability

    Energy Technology Data Exchange (ETDEWEB)

    Akhmedov, E.K. [Valencia Univ. (Spain). Dept. de Fisica Teorica; Joshipura, A.S. [Valencia Univ. (Spain). Dept. de Fisica Teorica; Ranfone, S. [Valencia Univ. (Spain). Dept. de Fisica Teorica; Valle, J.W.F. [Valencia Univ. (Spain). Dept. de Fisica Teorica

    1995-05-08

    We consider a left-right symmetric model in which neutrinos acquire mass due to the spontaneous violation of both the gauged B-L and a global U(1) symmetry broken by the vacuum expectation value (VEV) of a gauge singlet scalar boson left angle {sigma} right angle . For suitable choices of left angle {sigma} right angle consistent with all laboratory and astrophysical observations neutrinos will be unstable against majoron emission. All neutrino masses in the keV to MeV range are possible, since the expected neutrino decay lifetimes can be short enough to dilute their relic density below the cosmologically required level. A wide variety of possible new phenomena, associated to the presence of left-right symmetry and/or the global symmetry at the TeV scale, could therefore be observable, without conflict with cosmology. The latter includes the possibility of invisibly decaying higgs bosons, which can be searched at LEP, NLC and LHC. ((orig.)).

  10. Prognosis following upper gastrointestinal bleeding.

    Directory of Open Access Journals (Sweden)

    Stephen E Roberts

    Full Text Available BACKGROUND: Upper gastrointestinal (GI bleeding is one of the most common, high risk emergency disorders in the western world. Almost nothing has been reported on longer term prognosis following upper GI bleeding. The aim of this study was to establish mortality up to three years following hospital admission with upper GI bleeding and its relationship with aetiology, co-morbidities and socio-demographic factors. METHODS: Systematic record linkage of hospital inpatient and mortality data for 14 212 people in Wales, UK, hospitalised with upper GI bleeding between 1999 and 2004 with three year follow-up to 2007. The main outcome measures were mortality rates, standardised mortality ratios (SMRs and relative survival. RESULTS: Mortality at three years was 36.7% overall, based on 5215 fatalities. It was highest for upper GI malignancy (95% died within three years and varices (52%. Compared with the general population, mortality was increased 27-fold during the first month after admission. It fell to 4.3 by month four, but remained significantly elevated during every month throughout the three years following admission. The most important independent prognostic predictors of mortality at three years were older age (mortality increased 53 fold for people aged 85 years and over compared with those under 40 years; oesophageal and gastric/duodenal malignancy (48 and 32 respectively and gastric varices aetiologies (2.8 when compared with other bleeds; non-upper GI malignancy, liver disease and renal failure co-morbidities (15, 7.9 and 3.9; social deprivation (29% increase for quintile V vs I; incident bleeds as an inpatient (31% vs admitted with bleeding and male patients (25% vs female. CONCLUSION: Our study shows a high late as well as early mortality for upper GI bleeding, with very poor longer term prognosis following bleeding due to malignancies and varices. Aetiologies with the worst prognosis were often associated with high levels of social

  11. Boerhaave's syndrome presenting as an upper gastrointestinal bleed.

    Science.gov (United States)

    Lee, William; Siau, Keith; Singh, Gurjit

    2013-11-29

    A 64-year-old man without any significant medical history presented to accident and emergency department with haematemesis and melaena, quite similar to an upper gastrointestinal bleed. However, the unexplained left-sided neck pain with a history of overnight vomiting prompted further imaging. Air was visible in the soft tissues on a lateral X-ray of the neck, which led to a CT scan and this showed a proximal-mid oesophageal rupture. The patient was stabilised and transferred to a cardiothoracic unit for observation. An inpatient endoscopy did not detect a perforation and the patient was discharged 5 days later without any further complications. This case report highlights how a high oesophageal rupture can mimic an upper gastrointestinal bleed and also the need for further imaging when there is an incongruent history, so that appropriate care is provided to minimise mortality.

  12. Work-related posttraumatic upper limb disorder. A case report.

    Science.gov (United States)

    Capodaglio, P; Nigrelli, M P; Malaguti, S; Panigazzi, M; Pierobon, A

    1999-01-01

    In this paper we describe a patient with mor-sensory loss in the right forearm and hand, which persisted more than 2 years after work-related crush trauma of the left hand. Radiographic and electromyographic investigations, somatosensory evoked potentials, CT scans of the encephalus as well as the Minnesota Multiphasic Personality Inventory and the Roarschach test have been performed. On the basis of these investigations, we think this represents a case of conversion disorder with somatic features. Included is a brief overview of other psychological illness with physical findings involving the upper limb.

  13. Revascularization procedure induced maturogenesis of upper permanent incisor.

    Science.gov (United States)

    Abduljabbar, F; Bakhsh, A; Abed, H

    2014-09-01

    Treatment of carious or traumatized teeth with open apex is usually a challenge to a dentist. Recently, some case reports have shown that revascularization process induced maturogenesis of immature non-vital teeth. This case report describes the successful revascularization process of an immature central incisor. The upper left central incisor of 14-year-old boy was treated by revascularization process induced maturogenesis procedures. The tooth was symptomatic and caused a mucogingival swelling before the treatment. 3 years follow-up radiographs show a root elongation and an apical closure in the tooth treated with revascularization process. Revascularization procedure induced maturogenesis have several advantages over conventional apexification procedure.

  14. Case series: Congenital left ventricular diverticulum

    Directory of Open Access Journals (Sweden)

    Shah Dharita

    2010-01-01

    Full Text Available Congenital left ventricular diverticulum is a rare cardiac malformation characterized by a localized outpouching from the cardiac chamber. The patient is usually asymptomatic. However, complications like embolism, infective endocarditis, arrhythmia and, rarely, rupture can be the initial presentation. Diagnosis can be established by USG, echocardiography, CT angiography, and MRI. We report here two neonates with congenital left ventricular apical diverticulum associated with epigastric hernia.

  15. Laparoscopic vs open left hepatectomy for hepatolithiasis

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    AIM: To explore the feasibility and therapeutic effect of total laparoscopic left hepatectomy (LLH) for hepatolithiasis. METHODS: From June 2006 to October 2009, 61 consecutive patients with hepatolithiasis who met the inclusion criteria for LLH were treated in our institute. Of the 61 patients with hepatolithiasis, 28 underwent LLH (LLH group) and 33 underwent open left hepatectomy (OLH group). Clinical data including operation time, intraoperative blood loss, postoperative complication rate, postoperative...

  16. Aneurysm of the left main coronary artery

    Directory of Open Access Journals (Sweden)

    Ênio E. Guérios

    2000-12-01

    Full Text Available Aneurysm of the left main coronary artery is a rare angiographic finding, with few cases described in the international literature. We report the case of a 42-year-old male with a previous history of acute myocardial infarction, whose coronariography indicated triple vessel coronary disease and an aneurysm of the left main coronary artery. A review of the etiology, clinical aspects, and surgical management of coronary arterial aneurysm is presented.

  17. Congenital left atrial appendage aneurysm: Atypical presentation

    Directory of Open Access Journals (Sweden)

    Mehdi Bamous

    2017-01-01

    Full Text Available Congenital left atrial appendage aneurysm is a rare condition caused by dysplasia of the atrial muscles. We report a case of a 14-year-old boy, with a 5-month history of cough and in sinus rhythm. Transthoracic echocardiography and computerized tomographic angiography confirmed the aneurysm of the left atrial appendage which was resected through median sternotomy on cardiopulmonary bypass. This case is presented not only for its rarity but also for its atypical clinical presentation.

  18. Thoracoscopic Left Splanchnicectomy: Two Trocar Technique

    OpenAIRE

    George Jinescu; Ion Lica; Septimiu Andrei; Cornelia Chidiosan; Mihnea Dinu

    2014-01-01

    Background: Abdominal hyperalgic syndrome in unresectable pancreatic cancer worsens the quality of patients' life. The goal of this article is to evaluate the feasibility of performing the left splanchnicectomy using a two trocar thoracoscopic approach. Material and Methods: One patient suffering from intractable pain due to unresectable pancreatic cancer (stage IV) with liver metastasis underwent thoracoscopic unilateral left splanchnicectomy. The procedure was performed using only two troca...

  19. Left △-Product Structure of Left C-Wrpp Semigroups%左G-Wrpp半群的左△-积

    Institute of Scientific and Technical Information of China (English)

    张晓敏

    2009-01-01

    We study another structure of so-called left C-wrpp semigroups.In particular,the concept of left △-product is extended and enriched.The aim of this paper is to give a construction of left C-wrpp semigroups by a left regular band and a strong semilattice of left-R cancellative monoids.Properties of left C-wrpp semigroups endowed with left △-products are particularly investigated.

  20. Zenker's diverticulum, a rare cause of upper gastrointestinal bleeding.

    Science.gov (United States)

    Bălălău, C; Stoian, S; Motofei, I; Popescu, B; Popa, F; Scăunaşu, R V

    2013-01-01

    The most common complication of Zenker's diverticulum is aspiration pneumonia, compression of the trachea and esophageal obstruction with large diverticulum, and increased risk of development of carcinoma. Thus bleeding occurs rarely, can be massive and life threatening, with ulceration being the most common cause. We describe a patient with sever upper gastrointestinal bleeding as a result of a Zenker's diverticulum. A 75 year-old woman was referred to the emergency room and hospitalized for hematemesis, melena, asthenia and total dysphagia. In this particular case we preferred open technique because of the diverticulum dimensions and bleeding episode. Left cervicotomy was practiced on the anterior edge of the sternocleidomastoid muscle, being known that Zenker diverticulum extend into the left neck 90% of the time, fact also confirmed by radiology in this case. Postoperatively, the patient showed a complication free recovery. Five days after treatment the patient resumed nourishment. Several days later our patient was able to return home. Follow-up at 12 months after the operation showed complete recovery. Ulcer of the basis of Zenker's diverticulum is a rare entity and, only a few cases were reported in the literature to date. Omitting thecricomyotomy predisposes to fistula or diverticulum recurrence due to the persistence of a high pharyngeal intraluminal pressure that acts on the posterior wall just proximal to the upper esophageal sphincter. Zenker's diverticulum is an unusual site of origin for clinically significant upper gastrointestinal hemorrhage and differential diagnosis must include other more frequent causes of upper gastrointestinal bleeding. In our opinion, classicalsurgical therapy is indicated when distal esophageal imaging cannot be obtained during endoscopic examination, there is a large diverticulum or in an emergency setting when fast control over the bleeding source is required.

  1. Upper incisors' positions after extraction.

    Science.gov (United States)

    Werneck, Eduardo César; Mattos, Fernanda Silva; Cotrim-Ferreira, Flávio Augusto; Prado, Renata Falchete; Silva, Márcio Garcia; Araújo, Adriano Marotta

    2014-01-01

    The aim of this research was to verify the amount of horizontal and vertical movement and incisor inclination of upper incisors and correlate these with Edgewise and Alexander brackets use and the presence of overbite during anterior retraction in sliding mechanics. The sample was composed of 40 adult patients divided into 2 groups, treated with Edgewise and Alexander brackets (20 each) subdivided in 2 groups (10 each), according to the presence or absence of deep bite. Treatment consisted of 4 extraction cases with sliding mechanics with the 2 different brackets. Pre- and post-treatment cephalograms were measured and the values of interest submitted to descriptive statistical analysis, ANOVA at 5%, the Tukey test and Pearson's correlation. Upper incisor retraction was not related to the brackets used nor to the presence of deep bite, though lingual tipping was greater when Edgewise brackets were used and deep bite was absent. No statistically significant differences in upper incisor vertical movements were observed and no correlation was determined between upper incisor intrusion and lower incisor labial tipping in overbite correction or in upper incisor retraction and lower incisor labial tipping for overjet correction. Bracket prescription and its interaction with deep bite were significant and Edgewise brackets without deep bite showed the worst inclination control. It was concluded that bracket prescriptions are important to increase control of sliding mechanics.

  2. Acute, nonvariceal upper gastrointestinal bleeding.

    Science.gov (United States)

    Klein, Amir; Gralnek, Ian M

    2015-04-01

    Acute, nonvariceal upper gastrointestinal bleeding (UGIB) is a common medical emergency encountered worldwide. Despite medical and technological advances, it remains associated with significant morbidity and mortality. Rapid patient assessment and management are paramount. When indicated, upper endoscopy in patients presenting with acute UGIB is effective for both diagnosis of the bleeding site and provision of endoscopic hemostasis. Endoscopic hemostasis significantly reduces rebleeding rates, blood transfusion requirements, length of hospital stay, surgery, and mortality. Furthermore, early upper endoscopy, defined as being performed within 24 h of patient presentation, improves patient outcomes. A structured approach to the patient with acute UGIB that includes early hemodynamic resuscitation and stabilization, preendoscopic risk stratification using validated instruments, pharmacologic and endoscopic intervention, and postendoscopy therapy is important to optimize patient outcome and assure efficient use of medical resources.

  3. Simulation of Upper Limb Movements

    Science.gov (United States)

    Uherčík, Filip; Hučko, Branislav

    2011-12-01

    The paper deals with controlling an upper limb prosthesis based on the measurement of myoelectric signals (MES) while drinking. MES signals have been measured on healthy limbs to obtain the same response for the prosthesis. To simulate the drinking motion of a healthy upper limb, the program ADAMS was used, with all degrees of freedom and a hand after trans-radial amputation with an existing hand prosthesis. Modification of the simulation has the exact same logic of control, where the muscle does not have to be strenuous all the time, but it is the impulse of the muscle which drives the motor even though the impulse disappears and passed away.

  4. Uncommon upper extremity compression neuropathies.

    Science.gov (United States)

    Knutsen, Elisa J; Calfee, Ryan P

    2013-08-01

    Hand surgeons routinely treat carpal and cubital tunnel syndromes, which are the most common upper extremity nerve compression syndromes. However, more infrequent nerve compression syndromes of the upper extremity may be encountered. Because they are unusual, the diagnosis of these nerve compression syndromes is often missed or delayed. This article reviews the causes, proposed treatments, and surgical outcomes for syndromes involving compression of the posterior interosseous nerve, the superficial branch of the radial nerve, the ulnar nerve at the wrist, and the median nerve proximal to the wrist. Copyright © 2013 Elsevier Inc. All rights reserved.

  5. Left ventricular performance during triggered left ventricular pacing in patients with cardiac resynchronization therapy and left bundle branch block

    DEFF Research Database (Denmark)

    Witt, Christoffer Tobias; Kronborg, Mads Brix; Nohr, Ellen Aagaard;

    2016-01-01

    PURPOSE: To assess the acute effect of triggered left ventricular pacing (tLVp) on left ventricular performance and contraction pattern in patients with heart failure, left bundle branch block (LBBB), and cardiac resynchronization therapy (CRT). METHODS: Twenty-three patients with pre-implant QRS...... conduction, tLVp, and BiV pacing and compared as paired data. Echocardiographic analysis was done blinded with respect to pacing mode. RESULTS: LVEF was significantly higher during BiV pacing (47 ± 11 %) compared with intrinsic conduction (43 ± 13 %, P = 0.001) and tLVp (44 ± 13 %, P = 0.001), while......V pacing. CONCLUSIONS: The acute effect of tLVp on LV systolic function and contraction pattern is significantly lower than the effect of BiV pacing and not different from intrinsic conduction in patients with LBBB and CRT....

  6. What is Beyond Right/Left?

    DEFF Research Database (Denmark)

    Dyrberg, Torben Bech

    2009-01-01

    The article looks at New Labour's move beyond right/left in the mid/late 1990s, which is an occasion to spell out the nature of right/left and what it means for democracy. In contrast to both defenders and critics of this move I argue in the first part that right/left is not an empty label bound up...... with the cleavage-lines of industrial society, but that it is an orientational metaphor which is articulated with others-in/out, up/down and front/back-and that we are in the process of moving beyond the industrial society right/left prototype. The second part looks at where New Labour is heading when moving beyond...... right/left. I argue that the new hegemonic orientation is that of front/back, which designs political renewal as a response to the social changes cutting across the outdated lines of contestation of partisan politics. The democratic problem of this move lies in squeezing politics between technocratic...

  7. Bimanual proprioceptive performance differs for right- and left-handed individuals.

    Science.gov (United States)

    Han, Jia; Waddington, Gordon; Adams, Roger; Anson, Judith

    2013-05-10

    It has been proposed that asymmetry between the upper limbs in the utilization of proprioceptive feedback arises from functional differences in the roles of the preferred and non-preferred hands during bimanual tasks. The present study investigated unimanual and bimanual proprioceptive performance in right- and left-handed young adults with an active finger pinch movement discrimination task. With visual information removed, participants were required to make absolute judgments about the extent of pinch movements made to physical stops, either by one hand, or by both hands concurrently, with the sequence of presented movement extents varied randomly. Discrimination accuracy scores were derived from participants' responses using non-parametric signal detection analysis. Consistent with previous findings, a non-dominant hand/hemisphere superiority effect was observed, where the non-dominant hands of right- and left-handed individuals performed overall significantly better than their dominant hands. For all participants, bimanual movement discrimination scores were significantly lower than scores obtained in the unimanual task. However, the magnitude of the performance reduction, from the unimanual to the bimanual task, was significantly greater for left-handed individuals. The effect whereby bimanual proprioception was disproportionately affected in left-handed individuals could be due to enhanced neural communication between hemispheres in left-handed individuals leading to less distinctive separation of information obtained from the two hands in the cerebral cortex.

  8. Horizontal Diplopia Following Upper Blepharoplasty

    Directory of Open Access Journals (Sweden)

    Tomás Ortiz-Basso

    2014-09-01

    Full Text Available Diplopia is an infrequent complication after blepharoplasty. Most of the cases are in its vertical form due to trauma of the extraocular muscles. In this article, we present a case of horizontal diplopia following cosmetic upper blepharoplasty; we review the literature on this unexpected complication and offer some recommendations to avoid it.

  9. [Left predominance of varices: myth or reality?].

    Science.gov (United States)

    Cornu-Thénard, A; Maraval, M; Boivin, P; Parpex, P

    1986-01-01

    The study of 843 legs operated for major varices shows that they are equally distributed between the two lower limbs (48.6% on the right, 51.4% on the left). There is little sex-determined variation in this distribution (410 women - 184 men), the main difference being that found in men: +4.6% on the left. Other studies carried out in Europe come to much the same conclusion. Two of these studies do, however, note a much clearer predominance of left-leg varices in men (+10%). For some studies, the lack of information about the type of varices being considered has proved troublesome (for example the many isolated telangiectasis and varices) and means that it is impossible to come to any exact conclusion. Clinical quantification is therefore desirable: at least it takes into account the diameter of the varices studied.

  10. Left-Wing Extremism: The Current Threat

    Energy Technology Data Exchange (ETDEWEB)

    Karl A. Seger

    2001-04-30

    Left-wing extremism is ''alive and well'' both in the US and internationally. Although the current domestic terrorist threat within the U. S. is focused on right-wing extremists, left-wing extremists are also active and have several objectives. Leftist extremists also pose an espionage threat to U.S. interests. While the threat to the U.S. government from leftist extremists has decreased in the past decade, it has not disappeared. There are individuals and organizations within the U.S. who maintain the same ideology that resulted in the growth of left-wing terrorism in this country in the 1970s and 1980s. Some of the leaders from that era are still communicating from Cuba with their followers in the U.S., and new leaders and groups are emerging.

  11. Probabilistic Parsing Using Left Corner Language Models

    CERN Document Server

    Manning, C D; Manning, Christopher D.; Carpenter, Bob

    1997-01-01

    We introduce a novel parser based on a probabilistic version of a left-corner parser. The left-corner strategy is attractive because rule probabilities can be conditioned on both top-down goals and bottom-up derivations. We develop the underlying theory and explain how a grammar can be induced from analyzed data. We show that the left-corner approach provides an advantage over simple top-down probabilistic context-free grammars in parsing the Wall Street Journal using a grammar induced from the Penn Treebank. We also conclude that the Penn Treebank provides a fairly weak testbed due to the flatness of its bracketings and to the obvious overgeneration and undergeneration of its induced grammar.

  12. Contrasting Assessments of the Latin American Left

    Directory of Open Access Journals (Sweden)

    Paul Lawrence Haber

    2011-01-01

    Full Text Available The ability of the Latin American electoral left to make substantial progress on the social justice agenda while in office is much disputed. Two significant schools of thought are identified: one generally sympathetic and the other critical. This essay explores this argument with reference to Brazil, El Salvador, and Bolivia. At the heart of the debate is the relationship between social movements and political parties of the left. Should social movements collaborate with political parties of the left? While the critics raise important questions and concerns that are useful to illuminate the limitations of gradualism they do not present a viable strategy forward. The article concludes with the observation that the nature of this collaboration is a worthy subject of serious debate and reform proposals.

  13. Gelastic seizures involving the left parietal lobe.

    Science.gov (United States)

    Machado, René Andrade; Astencio, Adriana Goicoechea

    2012-01-01

    Gelastic seizures have been described in various epilepsies arising from the temporal or frontal lobes, although the most commonly encountered form is related to the presence of a hypothalamic hamartoma. We describe a patient with gelastic seizures involving the left parietal lobe. Our patient, an 8-year-old girl, underwent interictal video/EEG monitoring and MRI. The seizures consisted of brief staring followed by smiling and laughing. Electroencephalography during the gelastic seizures showed rhythmic spikes and waves in the left parietal lobe. MRI revealed the characteristic features of focal cortical dysplasia. Our findings suggest that the left parietal lobe may actively participate in the particular epileptogenic network generating gelastic seizures. Copyright © 2011 Elsevier Inc. All rights reserved.

  14. Lone, Mobile Left Atrial Hydatid Cyst

    Science.gov (United States)

    Ugurlu, Mehmet; Baktir, Ahmet Oguz; Tekin, Ali Ihsan; Tok, Ahmet; Yagmur, Bayram

    2016-01-01

    Echinococcosis is endemic in various regions of Turkey. Cardiac involvement in echinococcosis is rare, and lone cardiac hydatid cysts are even more unusual. Because cardiac hydatid disease can be fatal, even asymptomatic patients are optimally referred for surgical treatment. We present a rare case of a lone, primary, mobile hydatid cyst in the left atrium of a 62-year-old woman. The cyst caused dyspnea from left ventricular inflow obstruction. In addition to reporting the patient's fatal case, we discuss cardiac hydatid cysts in terms of the scant medical literature. PMID:27303247

  15. Echocardiographic study of left atrial myxoma

    Directory of Open Access Journals (Sweden)

    Dalal J

    1979-01-01

    Full Text Available Four cases of left atrial myxoma were diagnosed pre-operatively by echocardiography. All cases showed characteristic echocardio-graphic features of variegated shadows behind the mitral valve in diastole and within the left atrium in systole. In two cases the my-xomas were surgically removed and confirmed on histology. In one case the post-operative echocardiogram showed complete dis-appearance of the abnormal shadows. Echocardiography is the most reliable method today for the diagnosis of a myxoma.

  16. Left paraduodenal hernias; Hernias paraduodenales izquierdas

    Energy Technology Data Exchange (ETDEWEB)

    Lopez-Negrete, L.; Garcia-Lozano, J.; Sanchez, J. L.; Tejeiro, A.; Sala, J. [Hospital Valle del Nalon. Riano-Sama. Asturias (Spain)

    2002-07-01

    We report two cases of left paraduodenal internal hernias located in the fossa of Landzert that were diagnosed by CT. Internal hernias are an infrequent cause of acute abdomen, due to the intestinal sub occlusion they produce. Left paraduodenal hernias are responsible for about 50% of internal hernias. CT makes it possible to demonstrate the group of herniated loops between the stomach, fourth segment of the duodenum, descending colon, and tail of the pancreas. The identification of the loops in an atypical position together with displaced blood vessels (mesenteric vessels) and colon gives concerns on them a typical radiological semiology that makes them easily identifiable. (Author) 9 refs.

  17. Left ventricular assist device implantation via left thoracotomy: alternative to repeat sternotomy.

    Science.gov (United States)

    Pierson, Richard N; Howser, Renee; Donaldson, Terri; Merrill, Walter H; Dignan, Rebecca J; Drinkwater, Davis C; Christian, Karla G; Butler, Javed; Chomsky, Don; Wilson, John R; Clark, Rick; Davis, Stacy F

    2002-03-01

    Repeat sternotomy for left ventricular assist device insertion may result in injury to the right heart or patent coronary grafts, complicating intraoperative and postoperative management. In 4 critically ill patients, left thoracotomy was used as an alternative to repeat sternotomy. Anastomosis of the outflow conduit to the descending thoracic aorta provided satisfactory hemodynamic support.

  18. Correlation of Left Atrial Diameter by Echocardiography and Left Atrial Volume by Computed Tomography

    NARCIS (Netherlands)

    Hof, Irene; Arbab-Zadeh, Armin; Scherr, Daniel; Chilukuri, Karuna; Dalal, Darshan; Abraham, Theodore; Lima, Joao; Calkins, Hugh

    2009-01-01

    Computed Tomography. Introduction: For patients undergoing catheter ablation of atrial fibrillation (AF), left atrial size is a predictor of recurrence of AF during follow-up. For this reason, major clinical trials have used a left atrial diameter (LAD) of more than 5.0 or 5.5 cm, assessed by echoca

  19. Left Pulmonary Artery Thrombosis in a Neonate with Left Lung Hypoplasia

    Directory of Open Access Journals (Sweden)

    Matthias P. van Schendel

    2012-01-01

    Full Text Available Thrombotic events in neonates may origin from fetal life. A 4-day-old newborn infant with a family history of heterozygous type 1 protein C deficiency was diagnosed with left lung hypoplasia and left pulmonary artery thrombosis. Its source was prenatally closed ductus arteriosus. Surgical removal of the thrombus was performed.

  20. Post traumatic intra thoracic spleen presenting with upper GI bleed! – a case report

    Directory of Open Access Journals (Sweden)

    Kinra Sonali

    2006-11-01

    Full Text Available Abstract Background Isolated splenic vein thrombosis with left sided portal hypertension is a rare cause of upper gastrointestinal bleed. Diagnosis is difficult and requires a high index of suspicion, especially in patients presenting with gastrointestinal bleed in the presence of splenomegaly and normal liver function tests. Case presentation A 64 year old male presented with haematemesis and melaena. An upper gastrointestinal endoscopy revealed the presence of antral erosions in the stomach and fundal varices. A computerised tomography scan of abdomen confirmed the presence of a diaphragmatic tear and the spleen to be lying in the left hemi thorax. The appearances of the splenic vein on the scan were consistent with thrombosis. Conclusion Left sided portal hypertension as a result of isolated splenic vein thrombosis secondary to trauma is rare. The unusual presentation of our case, splenic herniation into the left hemithorax, causing fundal varices leading to upper gastrointestinal bleed 28 years after the penetrating injury, makes this case most interesting. We believe that this has not been reported in literature before.

  1. Postoperative normalization of left ventricular noncompaction and new echocardiographic signs in aorta to left ventricular tunnel.

    Science.gov (United States)

    Malakan Rad, Elaheh; Zeinaloo, Ali Akbar

    2013-04-01

    We report postoperative normalization of left ventricular noncompaction in a neonate undergoing successful neonatal surgery for type II aorta to left ventricular tunnel (ALVT) associated with a large patent ductus arteriosus, floppy and extremely redundant anterior mitral leaflet, right coronary artery arising directly from the tunnel, and severe left ventricular noncompaction. We also described 2 novel echocardiographic findings in ALVT including "triple wavy line sign" on M-mode echocardiography which disappeared 1 month after operation and "abnormally increased left ventricular posterior wall motion" on M-mode of standard parasternal long-axis view on color tissue Doppler imaging (TDI) that also normalized postoperatively. We showed that proper definition of endocardial border is extremely important in strain and strain rate imaging in the context of left ventricular noncompaction. Preoperative longitudinal strain and strain rate were significantly decreased in comparison to radial strain and strain rate. Circumferential strain and strain rate were normal. © 2013, Wiley Periodicals, Inc.

  2. Diastolic Left Ventricular Dysfunction : A Clinical Appraisal

    NARCIS (Netherlands)

    Bronzwaer, J.G.F.

    2003-01-01

    Diastolic left ventricular (LV) distensibility is determined by the material properties of the LV wall and by LV geometry (i.e., LV shape, LV volume and LV wall thickness). These material properties are influenced both by the physical structure of the LV myocardium and by the dynamic process of myoc

  3. Left ventricular hypertrophy : virtuous intentions, malign consequences

    NARCIS (Netherlands)

    Pokharel, S; Sharma, UC; Pinto, YM

    2003-01-01

    Left ventricular hypertrophy (LVH) is currently the focus of intense cardiovascular research, with the resultant rapid evolution of novel concepts relating to its exceedingly complex pathophysiology. In addition to the alterations in signal transduction and disturbances in Ca2+ homeostasis, there ar

  4. Topologically Left Invariant Means on Semigroup Algebras

    Indian Academy of Sciences (India)

    Ali Ghaffari

    2005-11-01

    Let $M(S)$ be the Banach algebra of all bounded regular Borel measures on a locally compact Hausdorff semitopological semigroup with variation norm and convolution as multiplication. We obtain necessary and sufficient conditions for $M(S)^∗$ to have a topologically left invariant mean.

  5. Giant melanoma of the left thumb

    NARCIS (Netherlands)

    Zeebregts, CJAM; Schraffordt Koops, H.

    2000-01-01

    A 74-year-old female patient is described with a giant melanoma of the left thenar and concomitant bilateral pulmonary metastases. Palliative treatment consisted of a two-staged procedure in order to save the limb from amputation. Firstly, perfusion with gamma-interferon, tumour necrosis factor-alph

  6. Left-right model for dark matter

    CERN Document Server

    Dong, P V

    2016-01-01

    We argue that dark matter can automatically arise from a gauge theory that possesses a non-minimal left-right gauge symmetry, SU(3)_C \\otimes SU(M)_L \\otimes SU(N)_R \\otimes U(1)_X, for (M,N) = (2,3), (3,2), (3,3), \\cdots, and (5,5).

  7. Congestive cardiomyopathy and left ventricular thrombus.

    Science.gov (United States)

    Gould, L; Gopalaswamy, C; Chandy, F; Kim, B S

    1983-07-01

    A left ventricular thrombus was detected by echocardiography in a 54-year-old man with congestive cardiomyopathy. With the use of anticoagulants, the thrombus completely disappeared. Patients with congestive cardiomyopathy who are at high risk for thrombus formation should be screened with two-dimensional echocardiography. If a thrombus is recognized, anticoagulation therapy can then be instituted.

  8. Pathological Left-Handedness: An Explanatory Model.

    Science.gov (United States)

    Satz, Paul

    Reported was an explanatory conceptual model for pathological left-handedness (PLH) and related hypotheses, some of which could not be tested empirically due to lack of information. The model was reported to provide an explanation for the relationship between handedness and specific learning disability, and handedness and cerebral dominance for…

  9. [Congenital left sinus of Valsalva aneurysm].

    Science.gov (United States)

    Simões, M V; Figueira, R R; Barbato, D; Miziara, H L

    1991-01-01

    Two cases of left sinus of Valsalva congenital aneurysm (SVCA), incidentally found are described. The authors call attention on rarity of them, and present new concepts about their morphogenesis and incidence. They also suggested a higher incidence of asymptomatic and undiagnosed cases of SVCA should be considered.

  10. Liponeurocytoma of the Left Lateral Ventricle

    Directory of Open Access Journals (Sweden)

    Ahmet BEKAR

    2009-09-01

    Full Text Available Liponeurocytoma has been recognized recently as a distinct clinicopathological entity by the World Health Organization. Although there are few cases described in the literature it has been accepted as a benign lesion. Here we present a 55-year-old woman with a supratentorial intraventricular liponeurocytoma of the left lateral ventricle.

  11. Laparoscopic versus open left lateral segmentectomy

    Directory of Open Access Journals (Sweden)

    Rela Mohamed

    2009-09-01

    Full Text Available Abstract Background Laparoscopic liver surgery is becoming increasingly common. This cohort study was designed to directly compare perioperative outcomes of the left lateral segmentectomy via laparoscopic and open approach. Methods Between 2002 and 2006 43 left lateral segmentectomies were performed at King's College Hospital. Those excluded from analysis included previous liver resections, polycystic liver disease, liver cirrhosis and synchronous operations. Of 20 patients analysed, laparoscopic (n = 10 were compared with open left lateral segmentectomy (n = 10. Both groups had similar patient characteristics. Results Morbidity rates were similar with no wound or chest infection in either group. The conversion rate was 10% (1/10. There was no difference in operating time between the groups (median time 220 minutes versus 179 minutes, p = 0.315. Surgical margins for all lesions were clear. Less postoperative opiate analgesics were required in the laparoscopic group (median 2 days versus 5 days, p = 0.005. The median postoperative in-hospital stay was less in the laparoscopic group (6 days vs 9 days, p = 0.005. There was no mortality. Conclusion Laparoscopic left lateral segmentectomy is safe and feasible. Laparoscopic patients may benefit from requiring less postoperative opiate analgesia and a shorter post-operative in-hospital stay.

  12. Diastolic Left Ventricular Dysfunction : A Clinical Appraisal

    NARCIS (Netherlands)

    Bronzwaer, J.G.F.

    2003-01-01

    Diastolic left ventricular (LV) distensibility is determined by the material properties of the LV wall and by LV geometry (i.e., LV shape, LV volume and LV wall thickness). These material properties are influenced both by the physical structure of the LV myocardium and by the dynamic process of

  13. The Rings Characterized by Minimal Left Ideals

    Institute of Scientific and Technical Information of China (English)

    Jun Chao WEI

    2005-01-01

    We study these rings with every minimal left ideal being a projective, direct summand and a p-injective module, respectively. Some characterizations of these rings are given, and the relations among them are obtained. With these rings, we characterize semisimple rings. Finally, we introduce MC2 rings, and give some characterizations of MC2 rings.

  14. Nonlinear dynamics of the left ventricle.

    Science.gov (United States)

    Munteanu, Ligia; Chiroiu, Calin; Chiroiu, Veturia

    2002-05-01

    The cnoidal method is applied to solve the set of nonlinear dynamic equations of the left ventricle. By using the theta-function representation of the solutions and a genetic algorithm, the ventricular motion can be described as a linear superposition of cnoidal pulses and additional terms, which include nonlinear interactions among them.

  15. Artificial, parallel, left-handed DNA helices.

    Science.gov (United States)

    Tian, Cheng; Zhang, Chuan; Li, Xiang; Li, Yingmei; Wang, Guansong; Mao, Chengde

    2012-12-19

    This communication reports an engineered DNA architecture. It contains multiple domains of half-turn-long, standard B-DNA duplexes. While each helical domain is right-handed and its two component strands are antiparallel, the global architecture is left-handed and the two component DNA strands are oriented parallel to each other.

  16. [Stab wound to the left solitary kidney: report of a case].

    Science.gov (United States)

    Rabii, R; Joual, A; Bennani, S; Hafiani, M; el Mrini, M; Benjelloun, S

    2000-08-01

    A forty-four-years old man with a left solitary kidney presented a stab wound in the left lumbar region. Upon admission, the patient was hemodynamically stable, the abdominal ultrasonography showed a small perirenal hematoma and the intravenous pyelography was normal. Two days later, he had no hematuria and was discharged from the hospital, with a computed tomography scan control two weeks later. Unfortunately, seven days later, the patient was admitted to emergency for left lumbar pain, a 40 degrees C fever and pyuria. The creatinine level was 72 ng/mL, and the computed tomography scan showed a large urohematoma. The patient was operated and required partial upper polar nephrectomy for distorted upper pole with infected hematoma. A large hematoma was removed and a nephrostomy tube was introduced. The renal function returned to normal six days postoperatively and the nephrostomy tube was removed after nephrostogram at 12 days. Concerning this uncommon case, we emphasize the advantage of the computed tomography scan and the necessity of emergency management in a patient with solitary traumatic kidney.

  17. Different distal-proximal movement balances in right- and left-hand writing may hint at differential premotor cortex involvement.

    Science.gov (United States)

    Potgieser, A R E; de Jong, B M

    2011-12-01

    Right-handed people generally write with their right hand. Language expressed in script is thus performed with the hand also preferred for skilled motor tasks. This may suggest an efficient functional interaction between the language area of Broca and the adjacent ventral premotor cortex (PMv) in the left (dominant) hemisphere. Pilot observations suggested that distal movements are particularly implicated in cursive writing with the right hand and proximal movements in left-hand writing, which generated ideas concerning hemisphere-specific roles of PMv and dorsal premotor cortex (PMd). Now we examined upper-limb movements in 30 right-handed participants during right- and left-hand writing, respectively. Quantitative description of distal and proximal movements demonstrated a significant difference between movements in right- and left-hand writing (pwriting with the right hand, while proximal and distal movements similarly contributed to left-hand writing. Although differences between non-language drawings were not tested, we propose that the DME in right-hand writing may reflect functional dominance of PMv in the left hemisphere. More proximal movements in left-hand writing might be related to PMd dominance in right-hemisphere motor control, logically implicated in spatial visuomotor transformations as seen in reaching.

  18. Upper Gastrointestinal (GI) Tract X-Ray (Radiography)

    Science.gov (United States)

    ... Site Index A-Z X-ray (Radiography) - Upper GI Tract Upper gastrointestinal tract radiography or upper GI ... GI) Tract X-ray? What is Upper Gastrointestinal (GI) Tract Radiography? Upper gastrointestinal tract radiography, also called ...

  19. Technology improves upper extremity rehabilitation.

    Science.gov (United States)

    Kowalczewski, Jan; Prochazka, Arthur

    2011-01-01

    Stroke survivors with hemiparesis and spinal cord injury (SCI) survivors with tetraplegia find it difficult or impossible to perform many activities of daily life. There is growing evidence that intensive exercise therapy, especially when supplemented with functional electrical stimulation (FES), can improve upper extremity function, but delivering the treatment can be costly, particularly after recipients leave rehabilitation facilities. Recently, there has been a growing level of interest among researchers and healthcare policymakers to deliver upper extremity treatments to people in their homes using in-home teletherapy (IHT). The few studies that have been carried out so far have encountered a variety of logistical and technical problems, not least the difficulty of conducting properly controlled and blinded protocols that satisfy the requirements of high-level evidence-based research. In most cases, the equipment and communications technology were not designed for individuals with upper extremity disability. It is clear that exercise therapy combined with interventions such as FES, supervised over the Internet, will soon be adopted worldwide in one form or another. Therefore it is timely that researchers, clinicians, and healthcare planners interested in assessing IHT be aware of the pros and cons of the new technology and the factors involved in designing appropriate studies of it. It is crucial to understand the technical barriers, the role of telesupervisors, the motor improvements that participants can reasonably expect and the process of optimizing IHT-exercise therapy protocols to maximize the benefits of the emerging technology.

  20. Some Characterizations of Left Weakly Regular Ordered Semigroups

    Institute of Scientific and Technical Information of China (English)

    TANC JIAN; XIE XIANG-YUN

    2011-01-01

    In this paper,the notion of left weakly regular ordered semigroups is introduced.Furthermore,left weakly regular ordered semigroups are characterized by the properties of their left ideals,right ideals and (generalized) bi-ideals,and also by the properties of their fuzzy left ideals,fuzzy right ideals and fuzzy (generalized) bi-ideals.

  1. Cross-arm replantation for traumatic bilateral upper extremity amputations: a case report.

    Science.gov (United States)

    Liang, Kailu; Zhong, Gang; Yin, Jiahui; Xiang, Zhou; Cen, Shiqiang; Huang, Fuguo

    2011-02-01

    A 40-year-old woman had her right extremity avulsed at the proximal upper arm level and the wrist and hand of her left extremity irretrievably injured in a traffic accident. The right distal forearm was surgically amputated and replanted onto the stump of the left distal forearm. New strategy for nerve repair was applied and the function recovery of the cross-replanted hand was favorable. We thought that cross-extremity replantation was indicated when the patient suffered from bilateral total or subtotal amputation at different levels and orthotopic replantation was impossible.

  2. RELATIONSHIP OF LEFT VENTRICULAR SIZE TO LEFT ATRIAL AND LEFT ATRIAL APPENDAGE SIZE IN SINUS RHYTHM PATIENTS WITH DILATED CARDIOMYOPATHY

    Science.gov (United States)

    Bakalli, Aurora; Georgievska-Ismail, Ljubica; Musliu, Nebi; Koçinaj, Dardan; Gashi, Zaim; Zeqiri, Nexhmi

    2012-01-01

    Introduction: Thromboembolic events are a frequent cause of mortality in patients with congestive heart failure. The aim of or study was to evaluate the relationship of left ventricular end diastolic diameter (LVEDD) to left atrial (LA) size and left atrial appendage (LAA) size in patients with dilated cardiomyopathy in sinus rhythm, as well as to determine the prevalence of thrombi in LV and LA /LAA. Methods: This was a prospective cross-sectional study, conducted from December 2009 until December 2011. The study included 95 patients with dilated cardiomyopathy in sinus rhythm. Patients with swallowing problems, acute myocardial infarction, atrial fibrillation/flatter, severe systolic dysfunction, and/or patients who were taking oral anticoagulation therapy were excluded. Results: Mean patient age was 58.6 ± 12.2 years and 68.4% were men. Mean LVEDD of our population was 66.5 ± 6.5 mm, while mean LA atrium, LA volume and LAA maximal area were 46 ± 5.1 mm, 87.2 ± 38.7 cm3 and 4.7 ± 1.2 cm2, respectively. LA diameter (p<0.001) and LAA maximal area (p=0.01) showed to be independent predictors of LV size. LV thrombus was detected in 13 (13.7%) patients, while LAA thrombus in 46 (48.4%) patients of our study population. Conclusions: In conclusion, dilated LV size is associated with enlarged LA and LAA size. On the other hand, dilation of LV, LA and LAA is related to high prevalence of left chamber cardiac thrombi. PMID:23322961

  3. Behavioral and electrophysiological evidence of opposing lateral visuospatial asymmetries in the upper and lower visual fields.

    Science.gov (United States)

    Loughnane, Gerard M; Shanley, John P; Lalor, Edmund C; O'Connell, Redmond G

    2015-02-01

    Neurologically healthy individuals typically exhibit a subtle bias towards the left visual field during spatial judgments, known as "pseudoneglect". However, it has yet to be reliably established if the direction and magnitude of this lateral bias varies along the vertical plane. Here, participants were required to distribute their attention equally across a checkerboard array spanning the entire visual field in order to detect transient targets that appeared at unpredictable locations. Reaction times (RTs) were faster to left hemifield targets in the lower visual field but the opposite trend was observed for targets in the upper field. Electroencephalogram (EEG) analyses focused on the interval prior to target onset in order to identify endogenous neural correlates of these behavioral asymmetries. The relative hemispheric distribution of pre-target oscillatory alpha power was predictive of RT bias to targets in the lower visual field but not the upper field, indicating separate attentional mechanisms for the upper and lower visual fields. Analysis of multifocal visual-evoked potentials (MVEP) in the pre-target interval also indicated that the opposing upper and lower field asymmetries may impact on the magnitude of primary visual cortical responses. These results provide new evidence of a functional segregation of upper and lower field visuospatial processing.

  4. Delayed focal involvement of upper motor neurons in the Madras pattern of motor neuron disease.

    Science.gov (United States)

    Massa, R; Scalise, A; Iani, C; Palmieri, M G; Bernardi, G

    1998-12-01

    We report the case of a young man from the south of India, initially presenting the typical signs of benign monomelic amyotrophy (BMA) in the left upper limb. After several years, the involvement of other limbs and the appearance of bulbar signs suggested the possible diagnosis of the Madras pattern of motor neuron disease (MMND). Serial motor evoked potential (MEP) recordings allowed detection of the onset of a focal involvement of upper motor neurons (UMN) controlling innervation in the originally amyotrophic limb. Therefore, serial MEP recordings can be useful for the early detection of sub-clinical UMN damage in motor neuron disease presenting with pure lower motor neuron (LMN) signs.

  5. Robot-Aided Upper-Limb Rehabilitation Based on Motor Imagery EEG

    Directory of Open Access Journals (Sweden)

    Baoguo Xu

    2011-09-01

    Full Text Available Stroke is a leading cause of disability worldwide. In this paper, a novel robot‐assisted rehabilitation system based on motor imagery electroencephalography (EEG is developed for regular training of neurological rehabilitation for upper limb stroke patients. Firstly, three‐dimensional animation was used to guide the patient image the upper limb movement and EEG signals were acquired by EEG amplifier. Secondly, eigenvectors were extracted by harmonic wavelet transform (HWT and linear discriminant analysis (LDA classifier was utilized to classify the pattern of the left and right upper limb motor imagery EEG signals. Finally, PC triggered the upper limb rehabilitation robot to perform motor therapy and gave the virtual feedback. Using this robot‐assisted upper limb rehabilitation system, the patientʹs EEG of upper limb movement imagination is translated to control rehabilitation robot directly. Consequently, the proposed rehabilitation system can fully explore the patientʹs motivation and attention and directly facilitate upper limb post‐stroke rehabilitation therapy. Experimental results on unimpaired participants were presented to demonstrate the feasibility of the rehabilitation system. Combining robot‐assisted training with motor imagery‐ based BCI will make future rehabilitation therapy more effective. Clinical testing is still required for further proving this assumption.

  6. Targeted therapies in upper gastrointestinal cancer

    NARCIS (Netherlands)

    Kordes, S.

    2016-01-01

    Upper gastrointestinal (GI) cancers, as esophageal, gastric and pancreatic cancer, are still highly lethal diseases, in spite of advances in surgery, radiotherapy, chemotherapy and specific targeted therapy. Especially when patients are diagnosed with locally advanced or metastasized disease, upper

  7. Constraints on the parameters of the Left Right Mirror Model

    CERN Document Server

    Cerón, V E; Díaz-Cruz, J L; Maya, M; Ceron, Victoria E.; Cotti, Umberto; Maya, Mario

    1998-01-01

    We study some phenomenological constraints on the parameters of a left right model with mirror fermions (LRMM) that solves the strong CP problem. In particular, we evaluate the contribution of mirror neutrinos to the invisible Z decay width (\\Gamma_Z^{inv}), and we find that the present experimental value on \\Gamma_Z^{inv}, can be used to place an upper bound on the Z-Z' mixing angle that is consistent with limits obtained previously from other low-energy observables. In this model the charged fermions that correspond to the standard model (SM) mix with its mirror counterparts. This mixing, simultaneously with the Z-Z' one, leads to modifications of the \\Gamma(Z --> f \\bar{f}) decay width. By comparing with LEP data, we obtain bounds on the standard-mirror lepton mixing angles. We also find that the bottom quark mixing parameters can be chosen to fit the experimental values of R_b, and the resulting values for the Z-Z' mixing angle do not agree with previous bounds. However, this disagreement disappears if on...

  8. Dyscalculia, dysgraphia, and left-right confusion from a left posterior peri-insular infarct.

    Science.gov (United States)

    Bhattacharyya, S; Cai, X; Klein, J P

    2014-01-01

    The Gerstmann syndrome of dyscalculia, dysgraphia, left-right confusion, and finger agnosia is generally attributed to lesions near the angular gyrus of the dominant hemisphere. A 68-year-old right-handed woman presented with sudden difficulty completing a Sudoku grid and was found to have dyscalculia, dysgraphia, and left-right confusion. Magnetic resonance imaging (MRI) showed a focus of abnormal reduced diffusivity in the left posterior insula and temporoparietal operculum consistent with acute infarct. Gerstmann syndrome from an insular or peri-insular lesion has not been described in the literature previously. Pathological and functional imaging studies show connections between left posterior insular region and inferior parietal lobe. We postulate that the insula and operculum lesion disrupted key functional networks resulting in a pseudoparietal presentation.

  9. Dyscalculia, Dysgraphia, and Left-Right Confusion from a Left Posterior Peri-Insular Infarct

    Directory of Open Access Journals (Sweden)

    S. Bhattacharyya

    2014-01-01

    Full Text Available The Gerstmann syndrome of dyscalculia, dysgraphia, left-right confusion, and finger agnosia is generally attributed to lesions near the angular gyrus of the dominant hemisphere. A 68-year-old right-handed woman presented with sudden difficulty completing a Sudoku grid and was found to have dyscalculia, dysgraphia, and left-right confusion. Magnetic resonance imaging (MRI showed a focus of abnormal reduced diffusivity in the left posterior insula and temporoparietal operculum consistent with acute infarct. Gerstmann syndrome from an insular or peri-insular lesion has not been described in the literature previously. Pathological and functional imaging studies show connections between left posterior insular region and inferior parietal lobe. We postulate that the insula and operculum lesion disrupted key functional networks resulting in a pseudoparietal presentation.

  10. Reconstruction of the left-sided brachiocephalic trunk after vascular ring operation in left-handed child with Kommerell's diverticulum.

    Science.gov (United States)

    Haponiuk, Ireneusz; Paczkowski, Konrad; Chojnicki, Maciej; Jaworski, Radosław; Steffens, Mariusz; Szofer-Sendrowska, Aneta; Kwaśniak, Ewelina; Zieliński, Jacek; Gierat-Haponiuk, Katarzyna

    2013-01-01

    We report a case of a 2-year-old girl with prenatal diagnosis of vascular ring composed of a right-sided aortic arch, a left ligamentum arteriosum, and a left subclavian artery (arteria lusoria sin) originating from a retroesophageal Kommerell's diverticulum, who was referred for surgery with symptoms related to local compression - severe dysphagia and respiratory disorders. Through the left posterolateral thoracotomy, a ligamentum arteriosum between the Kommerell's diverticulum and the left pulmonary artery was divided and because of left-handedness of the child a brachiocephalic trunk was reconstructed in the fashion of anastomosis of the left subclavian artery and the left common carotid artery, originating from the ascending aorta.

  11. A constrained supersymmetric left-right model

    CERN Document Server

    Hirsch, Martin; Opferkuch, Toby; Porod, Werner; Staub, Florian

    2016-01-01

    We present a supersymmetric left-right model which predicts gauge coupling unification close to the string scale and extra vector bosons at the TeV scale. The subtleties in constructing a model which is in agreement with the measured quark masses and mixing for such a low left-right breaking scale are discussed. It is shown that in the constrained version of this model radiative breaking of the gauge symmetries is possible and a SM-like Higgs is obtained. Additional CP-even scalars of a similar mass or even much lighter are possible. The expected mass hierarchies for the supersymmetric states differ clearly from those of the constrained MSSM. In particular, the lightest down-type squark, which is a mixture of the sbottom and extra vector-like states, is always lighter than the stop. We also comment on the model's capability to explain current anomalies observed at the LHC.

  12. Left Realism and Social Democratic Renewal

    Directory of Open Access Journals (Sweden)

    Russell Hogg

    2016-09-01

    Full Text Available At its inception Left Realism argued the need to develop a radical social democratic approach to crime. I argue that its contribution and continuing relevance primarily lies in this political project, the need for which has not dissipated. But this can only be advanced as an integral component of a more general renewal of social democratic ideas and politics that challenges the hegemony of neo-liberalism. This is far from guaranteed. The possibilities and challenges after the global financial crisis are considered. I argue for a rethinking of some core themes from early Left Realism to (as I see it better complement the task of social democratic renewal in the present.

  13. Minimal Left-Right Symmetric Dark Matter.

    Science.gov (United States)

    Heeck, Julian; Patra, Sudhanwa

    2015-09-18

    We show that left-right symmetric models can easily accommodate stable TeV-scale dark matter particles without the need for an ad hoc stabilizing symmetry. The stability of a newly introduced multiplet either arises accidentally as in the minimal dark matter framework or comes courtesy of the remaining unbroken Z_{2} subgroup of B-L. Only one new parameter is introduced: the mass of the new multiplet. As minimal examples, we study left-right fermion triplets and quintuplets and show that they can form viable two-component dark matter. This approach is, in particular, valid for SU(2)×SU(2)×U(1) models that explain the recent diboson excess at ATLAS in terms of a new charged gauge boson of mass 2 TeV.

  14. Left-right symmetry and neutrino stability

    CERN Document Server

    Akhmedov, E K; Ranfone, S; Valle, José W F; Joshipura, A S; Ranfone, S; Valle, J W F

    1995-01-01

    We consider a left-right symmetric model in which neutrinos acquire mass due to the spontaneous violation of both the gauged B-L and a global U(1) symmetry broken by the vacuum expectation value (VEV) of a gauge singlet scalar boson \\VEV{\\sigma}. For suitable choices of \\VEV{\\sigma} consistent with all laboratory and astrophysical observations neutrinos will be unstable against majoron emission. All neutrino masses in the keV to MeV range are possible, since the expected neutrino decay lifetimes can be short enough to dilute their relic density below the cosmologically required level. A wide variety of possible new phenomena, associated to the presence of left-right symmetry and/or the global symmetry at the TeV scale, could therefore be observable, without conflict with cosmology. The latter includes the possibility of invisibly decaying higgs bosons, which can be searched at LEP, NLC and LHC.

  15. Minimal Left-Right Dark Matter

    CERN Document Server

    Heeck, Julian

    2015-01-01

    We show that left-right-symmetric models can easily accommodate stable TeV-scale dark matter particles. The stability of a newly introduced multiplet arises either accidentally as in the Minimal Dark Matter framework or comes courtesy of the remaining unbroken $\\mathbb{Z}_2$ subgroup of $B-L$. As a minimal example we study left-right fermion triplets and quintuplets and show that they can form viable two-component dark matter. This approach is in particular valid for $SU(2)\\times SU(2)\\times U(1)$ models that explain the recent diboson excess at ATLAS in terms of a new charged gauge boson of mass 2 TeV.

  16. [Myocardial revascularization surgery via a left minithoracotomy].

    Science.gov (United States)

    da Silveira, W L; Leite, A F; Artiaga, E P; Queiroz, F C; Ferreira, K A; de Carvalho, M C; da Silva, M A; Abdulmassih del Papa, M; Costa, L H; da Cunha, O M; Nazzeta, H; de Oliveira, V G

    1998-12-01

    There is, today, a global tendency towards a surgical approach privileging very small incisions, the so-called minimally invasive intervention, which results in a less aggressive action. The introduction of this new technique makes it possible to dissect the left internal thoracic artery (LITA) and to perform in the anastomosis with the anterior interventricular artery (AIA) through a left minithoracotomy. From May of 1996 to october of 1997, 11 patients with ischemic heart disease and a single proximal lesion of the AIA were submitted to a myocardial revascularization (MR). The surgical approach consisted of a left anterolateral thoracotomy through the 4th left intercostal space, of approximately 10 cm, and in the last 6 cases, resection of part of the cartilage of the 4th and 5th ribs, dissection of the LITA, as well as opening and repair of the pericardium adjacent to the AIA was done. All patients received a single bypass to the AIA with a graft of the LITA, without extracorporeal circulation. The patients' age varied between 46 and 76 years (mean = 58.55). Ten patients (90.90%) were males and 1 (9.09%) was a female. Hospital stay ranged from 4 to 8 days, with the average of 5.2 days. None of the patients presented any electrocardiographic change in the immediate post-operatory period. During the control period one patient developed a clot in the distal LITA, with important compromise of the flow. In another patient the stenosis was at the level of the anastomosis. Both were successfully submitted to angioplasty. There were no deaths in the groups studied. The absence of deaths suggests to us that MR surgery carried out with this minimally invasive technique, in selected groups and is an excellent alternative to the revascularization of the AIA.

  17. Is Left-Right Symmetry the Key?

    CERN Document Server

    Senjanovic, Goran

    2016-01-01

    Abdus Salam challenged the chiral gauge nature of the Standard Model by paving the road towards the Left-Right symmetric electro-weak theory. I describe here the logical and historical construction of this theory, by emphasising the pioneering and key role it played for neutrino mass. I show that it is a self-contained and predictive model with the Higgs origin of Majorana neutrino mass, in complete analogy with the SM situation regarding charged fermions.

  18. Total agenesis of the left pericardium

    Directory of Open Access Journals (Sweden)

    J. Glauco Lobo Fº

    1999-09-01

    Full Text Available This is the report of a 46-year-old patient with the preoperative diagnosis of an atrial septal defect (ASD of the ostium secudum type. After sternectomy, partial agenesis of the left pericardium was diagnosed. It is our opinion that, if the radiographic picture is suggestive of this entity, a clinical search for cardiopulmonary anomalies should be performed, because the majority of these associated anomalies can and should be surgically corrected.

  19. Diastolic Left Ventricular Dysfunction : A Clinical Appraisal

    OpenAIRE

    Bronzwaer, J.G.F.

    2003-01-01

    Diastolic left ventricular (LV) distensibility is determined by the material properties of the LV wall and by LV geometry (i.e., LV shape, LV volume and LV wall thickness). These material properties are influenced both by the physical structure of the LV myocardium and by the dynamic process of myocardial relaxation. The material properties of the myocardium dictate the strain that follows a given stress, and determine position and shape of the myocardial stress-strain relationship. The mater...

  20. Left Atrial Ablation for Atrial Fibrillation

    Science.gov (United States)

    Sternik, Leonid; Schaff, Hartzel V.; Luria, David; Glikson, Michael; Kogan, Alexander; Malachy, Ateret; First, Maya; Raanani, Ehud

    2011-01-01

    The maze procedure is the gold standard for the ablation of atrial fibrillation, and the “box lesion” around the pulmonary veins is the most important part of this procedure. We have created this lesion with a bipolar radiofrequency ablator, abandoning the usual use of this device (to achieve bilateral epicardial isolation of the pulmonary veins). From March 2004 through the end of May 2010, we performed surgical ablation of atrial fibrillation in 240 patients. Of this number, 205 underwent operation by a hybrid maze technique and the remaining 35 (our study cohort) underwent the creation of a box lesion around the pulmonary veins by means of a bipolar radiofrequency device. Ablation lines were created by connecting the left atriotomy to the amputated left atrial appendage, with 2 ablation lines made with a bipolar radiofrequency device above and below the pulmonary veins. Lesions were made along the transverse and oblique sinuses by epicardial and endocardial application of a bipolar device. The left atrial isthmus was ablated by bipolar radiofrequency and cryoprobe. No complications were associated with the box lesion: 90% and 89% of patients were in sinus rhythm at 3 and 6 months of follow-up, respectively. By creating a box lesion around the pulmonary veins, we expect to improve transmurality by means of epicardial and endocardial ablation of 1 rather than 2 layers of atrial wall, as in epicardial pulmonary vein isolation. Isolation of the entire posterior wall of the left atrium is better electrophysiologically and renders dissection around the pulmonary veins unnecessary. PMID:21494518

  1. Clustered survival data with left-truncation

    DEFF Research Database (Denmark)

    Eriksson, Frank; Martinussen, Torben; Scheike, Thomas H.

    2015-01-01

    Left-truncation occurs frequently in survival studies, and it is well known how to deal with this for univariate survival times. However, there are few results on how to estimate dependence parameters and regression effects in semiparametric models for clustered survival data with delayed entry...... are investigated via simulation studies, and the suggested estimators are used in a study of prostate cancer based on the Finnish twin cohort where a twin pair is included only if both twins were alive in 1974....

  2. Cancer of the upper rectum.

    Science.gov (United States)

    Bondeven, Peter

    2016-10-01

    Rectal cancer constitutes one-third of all colorectal cancers, and the incidence in Denmark increasing. In 2012, 1.400 cases were registered, and of these 38% were located in the upper rectum. There have been several key advances in the optimal management of rectal cancer during the past decades, primarily by standardisation and improvement of the surgical procedure. There is now general agreement that the optimal surgical treatment involves the concept of total mesorectal excision and that a resection with tumour-free margins is crucial. Controversy exists as to whether total mesorectal excision (TME) is necessary for upper rectal cancers or if a partial mesorectal excision (PME) with mesorectal transection 5 cm below the tumour is adequate. Furthermore, there is no agreement as to whether surgery alone is sufficient or whether neoadjuvant radio- and/or chemotherapy should be administered for tumours of the upper rectum. This thesis aims to discuss aspects of the treatment of rectal cancer with regard to the adequacy of mesorectal excision and oncological outcome with a particular focus on cancer of the upper rectum. In study I, the extent and completeness of mesorectal excision was estimated by postoperative magnetic resonance imaging of the pelvis in patients with primary surgery for rectal cancer. In the 136 patients with post-operative MRI, inadvertent residual mesorectal tissue was evident in 40%, especially following PME, suggesting suboptimal surgery performed. Additionally in patients who had PME, the distal margin was found to be less than 3 cm in more than 50% of patients, suggesting a discrepancy between guidelines and the actual surgery performed. In study II, we estimated the risk of local recurrence in the previously audited cohort of patients, with a particular focus on patients with upper rectal cancer treated by PME and without neo-adjuvant therapy as standard. Using Kaplan-Meier analysis, the total three-year local recurrence rate was 7% with

  3. Left-Deviating Prism Adaptation in Left Neglect Patient: Reflexions on a Negative Result

    Science.gov (United States)

    Luauté, Jacques; Jacquin-Courtois, Sophie; O'Shea, Jacinta; Christophe, Laure; Rode, Gilles; Boisson, Dominique; Rossetti, Yves

    2012-01-01

    Adaptation to right-deviating prisms is a promising intervention for the rehabilitation of patients with left spatial neglect. In order to test the lateral specificity of prism adaptation on left neglect, the present study evaluated the effect of left-deviating prism on straight-ahead pointing movements and on several classical neuropsychological tests in a group of five right brain-damaged patients with left spatial neglect. A group of healthy subjects was also included for comparison purposes. After a single session of exposing simple manual pointing to left-deviating prisms, contrary to healthy controls, none of the patients showed a reliable change of the straight-ahead pointing movement in the dark. No significant modification of attentional paper-and-pencil tasks was either observed immediately or 2 hours after prism adaptation. These results suggest that the therapeutic effect of prism adaptation on left spatial neglect relies on a specific lateralized mechanism. Evidence for a directional effect for prism adaptation both in terms of the side of the visuomanual adaptation and therefore possibly in terms of the side of brain affected by the stimulation is discussed. PMID:23050168

  4. Left-Deviating Prism Adaptation in Left Neglect Patient: Reflexions on a Negative Result

    Directory of Open Access Journals (Sweden)

    Jacques Luauté

    2012-01-01

    Full Text Available Adaptation to right-deviating prisms is a promising intervention for the rehabilitation of patients with left spatial neglect. In order to test the lateral specificity of prism adaptation on left neglect, the present study evaluated the effect of left-deviating prism on straight-ahead pointing movements and on several classical neuropsychological tests in a group of five right brain-damaged patients with left spatial neglect. A group of healthy subjects was also included for comparison purposes. After a single session of exposing simple manual pointing to left-deviating prisms, contrary to healthy controls, none of the patients showed a reliable change of the straight-ahead pointing movement in the dark. No significant modification of attentional paper-and-pencil tasks was either observed immediately or 2 hours after prism adaptation. These results suggest that the therapeutic effect of prism adaptation on left spatial neglect relies on a specific lateralized mechanism. Evidence for a directional effect for prism adaptation both in terms of the side of the visuomanual adaptation and therefore possibly in terms of the side of brain affected by the stimulation is discussed.

  5. Anomalous Origin of Left Circumflex Artery

    Science.gov (United States)

    Çitaku, Hajdin; Kamberi, Lulzim; Gorani, Daut; Koçinaj, Dardan; Krasniqi, Xhevdet

    2015-01-01

    Introduction: The coronary anatomic variation of the left circumflex artery (LCx) is considered as the most common anatomic variation with a separate ostium from the right sinus, and very unusual variation as a proximal branch of right coronary artery (RCA). Case report: We report two cases, the first case is a 64-year-old man with chest pain and with history of hypertension, obesity, dyslipidemia and current smoker, and the second case is a 67-year-old who presented to the emergency department with chest pain and with a past medical history of arterial hypertension and type 2 diabetes mellitus. In the coronarography of the first case is detected an ectopic left circumflex coronary artery from the right coronary sinus with stenotic changes in RCA and LCx. The second case in the coronary angiography revealed an ectopic left circumflex coronary artery from the proximal part of the right coronary artery with stenotic changes in LAD, RCA and LCx. Based on guidelines for revascularization our patients successfully underwent treatment procedures. We present two cases that because of the atherosclerotic coronary artery disease leads to the need of coronarography find out the presence of coronary artery anomalies. Conclusion: During the coronarography we should think about coronary artery anomaly or missing artery knowing that type of these anomalies, considering that may be a contributing factor in the development of the atherosclerosis determines the method of the treatment. PMID:26843740

  6. Satellite Upper Air Network (SUAN)

    Science.gov (United States)

    Reale, Tony L.; Thorne, Peter

    2004-10-01

    During the past 20 years of NOAA operational polar satellites, it has become evident that a growing problem concerning their utilization in Climate and also Numerical Weather Prediction (NWP) applications are the systematic errors and uncertainties inherent in the satellite measurements. Similar arguments can be made for global radiosonde observations. These uncertainties are often larger than the sensitive signals and processes, that satellite and radiosonde measurements are designed to reveal, particularly in the realm of climate. Possible strategies to quantify and compensate for these problems include the analysis of satellite overlap data and/or available collocations of satellite and ground truth (radiosonde) observations. However, overlap observations are typically not available except in extreme polar regions and current sampling strategies for compiling collocated radiosonde and satellite observations are insufficient, further compounding the inherent uncertainties in the ground-truth radiosonde data. A Satellite Upper Air Network is proposed to provide reference radiosonde launches coincident with operational polar satellite(s) overpass. The SUAN consist of 36 global radiosonde stations sub-sampled from the Global Upper Air Network (GUAN), and is designed to provide a robust, global sample of collocated radiosonde and satellite observations conducive to the monitoring and validation of satellite and radiosonde observations. The routine operation of such a network in conjunction with operational polar satellites would provide a long-term of performance for critical observations of particular importance for climate. The following report presents a candidate network of 36 upper-air sites that could comprise a SUAN. Their selection along with the mutual benefit across the satellite, radiosonde, climate, numerical weather prediction (NWP) and radiative transfer (RT) model areas are discussed.

  7. Advances in upper extremity prosthetics.

    Science.gov (United States)

    Zlotolow, Dan A; Kozin, Scott H

    2012-11-01

    Until recently, upper extremity prostheses had changed little since World War II. In 2006, the Defense Advanced Research Projects Agency responded to an increasing number of military amputees with the Revolutionizing Prosthetics program. The program has yielded several breakthroughs both in the engineering of new prosthetic arms and in the control of those arms. Direct brain-wave control of a limb with 22° of freedom may be within reach. In the meantime, advances such as individually powered digits have opened the door to multifunctional full and partial hand prostheses. Restoring sensation to the prosthetic limb remains a major challenge to full integration of the limb into a patient's self-image.

  8. Neuromuscular taping for the upper limb in Cerebral Palsy: A case study in a patient with hemiplegia.

    Science.gov (United States)

    Camerota, Filippo; Galli, Manuela; Cimolin, Veronica; Celletti, Claudia; Ancillao, Andrea; Blow, David; Albertini, Giorgio

    2014-12-01

    To assess quantitatively the effects of Neuromuscular Taping (NMT) on the upper limb in a female child with left hemiplegia, due to Cerebral Palsy (CP). The patient underwent NMT on cervical level, shoulder and hand only of the plegic upper limb, followed by physical therapy. Kinematic data of upper limbs during reaching task were collected before (PRE) and after 2 weeks of treatment (POST). After the intervention, the affected limb improved in terms of movement duration, Average Jerk and Number of Unit Movements indices, indicating a faster, smoother and less segmented movement. Improvements appeared at the ranges of motion of the upper limb joints, both at shoulder and elbow joints. No significant changes were globally displayed for the unaffected arm. NMT seems to be a promising intervention for improving upper limb movement in patients with CP. Further investigations are certainly needed to assess effectively the effects of the intervention in this pathological state.

  9. Recurrent Upper Quadrant Pain: A Fish Bone Secondary to Gastric Perforation and Liver Abscess

    Directory of Open Access Journals (Sweden)

    Hui Liang

    2011-12-01

    Full Text Available A 60-year-old male patient was admitted to our hospital for recurrent upper quadrant pain for 1 month. He had a past history of coronary artery disease. After admission, he repeatedly suffered from high-grade fever, chills and upper quadrant pain. Computed tomography (CT showed a round hypodense mass in the left lobe of the liver, approximately 2.7 × 2.2 cm in size, and a fish bone was confirmed by surgery in the left lobe of liver. The patient was cured completely after surgical removal of the fish bone and liver abscess. CT scan 1 month after discharge showed that the liver abscess had disappeared completely.

  10. [Cross-hand replantation in bilateral upper limb amputation: An anatomical emergency].

    Science.gov (United States)

    Andre, A; Rongieres, M; Laffosse, J-M; Pailhe, R; Lauwers, F; Grolleau, J-L

    2015-08-01

    Bilateral amputations of upper limbs are excessively rare clinical situations. We report an exceptional clinical case of bilateral amputation of upper limbs at different levels: destruction of the right hand and left transhumeral amputation in a patient after an attempted suicide on train lines. This special situation led us to perform a cross-hand replantation of the left hand to the right forearm. Only 4 other similar cases have been published in the literature. Once the surgical indication had been formulated collectively, and taking into account all the ethical issues surrounding such a decision, we had to solve the issue of inverting anatomical structures in emergency. We have provided a detailed description of our surgical technique. The aim was to save at least one organ used for grasping. The result obtained is presented and reviewed.

  11. Use of the intraosseous screw for unilateral upper molar distalization and found well balanced occlusion

    Directory of Open Access Journals (Sweden)

    Buyukyilmaz Tamer

    2006-11-01

    Full Text Available Abstract Background The aim of this study was to present a temporary anchorage device with intraosseous screw for unilateral molar distalization to make a space for the impacted premolar and to found well balanced occlusion in a case. Case presentation A 13-year-old male who have an impacted premolar is presented with skeletal Class I and dental Class 2 relationship. The screw was placed and immediately loaded to distalize the left upper first and second molar. The average distalization time to achieve an overcorrected Class I molar relationship was 3.6 months. There was no change in overjet, overbite, or mandibular plane angle measurements. Mild protrusion (0.5 mm of the upper left central incisor was also recorded. Conclusion Immediately loaded intraosseous screw-supported anchorage unit was successful in achieving sufficient unilateral molar distalization without anchorage loss. This treatment procedure was an alternative treatment to the extraction therapy.

  12. Left subclavian artery-esophageal fistula induced by a paper star: a case report

    OpenAIRE

    Lin, Chen-Sheng; Lin, Cheng-Wen

    2016-01-01

    A subclavian artery-esophageal fistula usually occurs on the right side of an aberrant subclavian artery. It also rarely appears in the site between a non-aberrant subclavian artery and the esophagus due to the ingestion of a foreign body. Upper gastrointestinal bleeding in the case of a subclavian artery-esophageal fistula is rare but often fatal. Here, we report on a 62-year-old male patient with a left subclavian arteryesophageal fistula complicated by hemorrhagic shock. He swallowed a for...

  13. Brachiocephalic trunk and left brachiocephalic vein injuries following penetrating right sternoclavicular junction trauma: a case report

    Institute of Scientific and Technical Information of China (English)

    KONG Ling-wen; TAN Yuan-kang; DU Ding-yuan; SU Hong-jie; ZHANG Wei-ming; ZHAO Xing-ji

    2013-01-01

    A 46-year-old male sustained severe penetrating injury by a sharp instrument to his right upper sternoclavicular junction.The wound tract was from suprasternal notch to mediastinum.Exploratory operation via median sternotomy under general anesthesia found a large mediastinal septum hematoncus,as well as brachiocephalic trunk and left brachiocephalic vein injuries.The perforating vascular wounds were repaired with 5-0 prolene suture.He was recovered uneventfully and discharged 9 days after operation.There was no sequel found during 7 years follow-up.

  14. Hypersexuality from resection of left occipital arteriovenous malformation.

    Science.gov (United States)

    Cao, Yong; Zhu, Zhaohui; Wang, Rong; Wang, Shuo; Zhao, Jizong

    2010-01-01

    The authors report their experience on one patient with hypersexuality from resection of left occipital arteriovenous malformation. To the best of our knowledge, this is the first case reported in the literature. A 35-year-old right-handed female farmer suffered a sudden left occipital hemorrhage with subarachnoid and subdural hemorrhages of the left hemisphere. Transient left uncal herniation occurred at the onset and was released by conservative treatment. Digital subtraction angiography showed a brain left occipital arteriovenous malformation. After microsurgical resection of the arteriovenous malformation, the patient developed hypersexual behavior. Positron emission tomography showed hypermetabolism in the left frontal region and left posterior hippocampal gyrus and hypometabolism in the left anterior hippocampal gyrus and the left occipital surgical area. Theories concerning normal pressure perfusion breakthrough and specific areas in the brain responsible for the human sexual response are discussed.

  15. Composites for Exploration Upper Stage

    Science.gov (United States)

    Fikes, J. C.; Jackson, J. R.; Richardson, S. W.; Thomas, A. D.; Mann, T. O.; Miller, S. G.

    2016-01-01

    The Composites for Exploration Upper Stage (CEUS) was a 3-year, level III project within the Technology Demonstration Missions program of the NASA Space Technology Mission Directorate. Studies have shown that composites provide important programmatic enhancements, including reduced weight to increase capability and accelerated expansion of exploration and science mission objectives. The CEUS project was focused on technologies that best advanced innovation, infusion, and broad applications for the inclusion of composites on future large human-rated launch vehicles and spacecraft. The benefits included near- and far-term opportunities for infusion (NASA, industry/commercial, Department of Defense), demonstrated critical technologies and technically implementable evolvable innovations, and sustained Agency experience. The initial scope of the project was to advance technologies for large composite structures applicable to the Space Launch System (SLS) Exploration Upper Stage (EUS) by focusing on the affordability and technical performance of the EUS forward and aft skirts. The project was tasked to develop and demonstrate critical composite technologies with a focus on full-scale materials, design, manufacturing, and test using NASA in-house capabilities. This would have demonstrated a major advancement in confidence and matured the large-scale composite technology to a Technology Readiness Level 6. This project would, therefore, have bridged the gap for providing composite application to SLS upgrades, enabling future exploration missions.

  16. Off-pump anastomosis of the left internal mammary artery to the left anterior descending coronary artery through a left inferior J-hemisternotomy

    DEFF Research Database (Denmark)

    Modrau, Ivy; Nielsen, Per Hostrup; Nielsen, Dorthe Viemose

    2016-01-01

    Since the 1990s, a large body of literature has been published regarding minimally invasive coronary artery bypass grafting. Varying techniques, complexity of the procedures and the necessity of patient selection have led to its inconsistent application. We describe the standardized technique...... of left internal mammary artery grafting to the left anterior descending coronary artery, off-pump through a left inferior J-hemisternotomy (JOPCAB). This approach is straightforward, safe, effective, and replicable in virtually all patients. JOPCAB requires no patient selection or other prerequisite than...... experience in standard off-pump technique. The left internal mammary artery is harvested under direct vision through a left inferior J-hemisternotomy. The left anterior descending coronary artery is exposed with left-sided pericardial stitches. The off-pump anastomosis is performed with the aid of a suction...

  17. Unusual etiology for upper gastrointestinal bleeding in a previously healthy child

    Directory of Open Access Journals (Sweden)

    Madhuradhar Chegondi

    2015-05-01

    Full Text Available Paraduodenal hernia (PDH is the most common congenital internal hernia and rarely presents in pediatric age group with acute abdominal symptoms. We report a six year old boy who has recurrent vague abdominal pain, vomiting for six months and massive upper GI bleed at admission, found to have left sided PDH and small bowel ischemia intraoperatively and underwent small bowel resection and PDH repair. He was discharged from hospital on day 6 postoperative day after uneventful course.

  18. The Upper Bounds of Arbitrary Eigenvalues for Uniformly Elliptic Operators with Higher Orders

    Institute of Scientific and Technical Information of China (English)

    Gao Jia; Xiao-ping Yang

    2006-01-01

    Let Ω(∪)Rm (m≥2) be a bounded domain with piecewise smooth and Lipschitz boundary (e)Ω. Let t and r be two nonnegative integers with t ≥ r + 1. In this paper, we consider the variable-coefficient eigenvalue problems with uniformly elliptic differential operators on the left-hand side and (-△)r on the right-hand side.Some upper bounds of the arbitrary eigenvalue are obtained, and several known results are generalized.

  19. Upper cervical spinal cord compression due to bony stenosis of the spinal canal.

    Science.gov (United States)

    Benitah, S; Raftopoulos, C; Balériaux, D; Levivier, M; Dedeire, S

    1994-04-01

    Compression of the upper cervical spinal cord due to stenosis of the bony spinal canal is infrequent. In the first case reported here, stenosis was due to acquired extensive, unilateral osteophytes centered on the left apophyseal joints of C1-C2 in an elderly professional violinist. In the second case, stenosis was secondary to isolated congenital hypertrophy of the laminae of C1 and C2.

  20. A Case of Upper Limb Compartment Syndrome following Snake Envenomation: Measure Twice, Cut Once.

    Science.gov (United States)

    Thomas, D K; Budhoo, E J; Mencia, M M; Ali, T F; Santana, D

    2014-08-01

    We report a case of a 16-year old male patient who sustained a poisonous bite from a mapepire balsain snake on the dorsum of his left hand. The subject presented within one hour of envenomation and subsequently developed clinical features of acute compartment syndrome in the involved upper limb. Early diagnosis and emergency fasciotomy effectively treated his condition. Aggressive physiotherapy coupled with this ensured best functional outcome.

  1. A Case of Upper Limb Compartment Syndrome following Snake Envenomation Measure Twice, Cut Once

    Science.gov (United States)

    Thomas, DK; Budhoo, EJ; Mencia, MM; Ali, TF; Santana, D

    2014-01-01

    We report a case of a 16-year old male patient who sustained a poisonous bite from a mapepire balsain snake on the dorsum of his left hand. The subject presented within one hour of envenomation and subsequently developed clinical features of acute compartment syndrome in the involved upper limb. Early diagnosis and emergency fasciotomy effectively treated his condition. Aggressive physiotherapy coupled with this ensured best functional outcome. PMID:25429488

  2. The New Left in the European Democracies: The Case of the German Radical Left

    Directory of Open Access Journals (Sweden)

    Marco Damiani

    2015-03-01

    Full Text Available The new form of the social and political conflict cannot be explained by the traditional categories of right and left, but it articulates to them on two plans, that of the establishment, intended like plan of the structured political conflict from the traditional actors, and that of the anti-establishment, in which new representations of politics emerge. The New Left is characterized by type of intermittent participation and new perspectives on mobilization inside the parties and the social movements. This type of parties differs moreover from the traditional ones left of the socialist and social democratic left in not arranging of organizations collaterals placed under the direction of the leadership of the same party. The mobilization that spontaneously assumes not conventional forms of active participation of the citizens, or is primed by the action of an associative network of which the same parties take part, than however does not monopo-lize the collective action. In this regard, the attention will be dedicated to the study of Die Linke: an anti-establishment party of the non-socialist German left-wing, heir to the communist tradition. The choice was affected to the German model because: 1 Germany is a country with a strong social democratic tradition, but 25 years after the fall of the Berlin Wall the German political system identifies a new antagonist political party; 2 Die Linke represents an interesting case in the political landscape of the European radical left because is a one-party that gives up at the federation of parties to try to unify the political parties of German radical left-wing.

  3. The Maximal Graded Left Quotient Algebra of a Graded Algebra

    Institute of Scientific and Technical Information of China (English)

    Gonzalo ARANDA PINO; Mercedes SILES MOLINA

    2006-01-01

    We construct the maximal graded left quotient algebra of every graded algebra A without homogeneous total right zero divisors as the direct limit of graded homomorphisms (of left A-modules)from graded dense left ideals of A into a graded left quotient algebra of A. In the case of a superalgebra,and with some extra hypothesis, we prove that the component in the neutral element of the group of the maximal graded left quotient algebra coincides with the maximal left quotient algebra of the component in the neutral element of the group of the superalgebra.

  4. Correlation between hand preference and intraocular pressure from right- and left-eyes in right- and left-handers.

    Science.gov (United States)

    Dane, Senol; Gümüştekin, Kenan; Yazici, Ahmet Taylan; Baykal, Orhan

    2003-02-01

    To test whether there is a relationship between handedness and the intraocular pressure and there is a lateralization in the intraocular pressure, the intraocular pressures of the right- and left-eyes were compared in right- and left-handed students. The intraocular pressures were higher in the right-eye than in the left-eye in men, right-handers, and right-eyed subjects; there was no right-left difference in females, left-handers, left-eyed, and both-eyed subjects. The intraocular pressure of right- and left-eyes was higher in left-handers than right-handers. And there were significant negative correlations between hand preference and the intraocular pressure of both right- and left-eyes. We have concluded that the dominant eye has higher intraocular pressure compared to the nondominant one, and there is a relationship between hand preference and the intraocular pressure.

  5. Radiographic and echocardiographic assessment of left atrial size in 100 cats with acute left-sided congestive heart failure.

    Science.gov (United States)

    Schober, Karsten E; Wetli, Ellen; Drost, Wm Tod

    2014-01-01

    The aims of this study were to evaluate left atrial size in cats with acute left-sided congestive heart failure. We hypothesized that left atrial size as determined by thoracic radiography can be normal in cats with acute left-sided congestive heart failure. One hundred cats with acute left-sided congestive heart failure in which thoracic radiography and echocardiography were performed within 12 h were identified. Left atrial size was evaluated using right lateral and ventrodorsal radiographs. Measurements were compared to two-dimensional echocardiographic variables of left atrial size and left ventricular size. On echocardiography, left atrial enlargement was observed in 96% cats (subjective assessment) whereas maximum left atrial dimension was increased (>15.7 mm) in 93% cats. On radiographs left atrial enlargement (subjective assessment) was found in 48% (lateral view), 53% (ventrodorsal view), and 64% (any view) of cats whereas left atrial enlargement was absent in 36% of cats in both views. Agreement between both methods of left atrial size estimation was poor (Cohen's kappa 0.17). Receiver operating characteristic curve analysis identified a maximum echocardiographic left atrial dimension of approximately 20 mm as the best compromise (Youden index) between sensitivity and specificity in the prediction of radiographic left atrial enlargement. Left atrial enlargement as assessed by thoracic radiography may be absent in a clinically relevant number of cats with congestive heart failure. Therefore, normal left atrial size on thoracic radiographs does not rule out presence of left-sided congestive heart failure in cats with clinical signs of respiratory distress.

  6. Left ventricular heart failure and pulmonary hypertension†

    Science.gov (United States)

    Rosenkranz, Stephan; Gibbs, J. Simon R.; Wachter, Rolf; De Marco, Teresa; Vonk-Noordegraaf, Anton; Vachiéry, Jean-Luc

    2016-01-01

    In patients with left ventricular heart failure (HF), the development of pulmonary hypertension (PH) and right ventricular (RV) dysfunction are frequent and have important impact on disease progression, morbidity, and mortality, and therefore warrant clinical attention. Pulmonary hypertension related to left heart disease (LHD) by far represents the most common form of PH, accounting for 65–80% of cases. The proper distinction between pulmonary arterial hypertension and PH-LHD may be challenging, yet it has direct therapeutic consequences. Despite recent advances in the pathophysiological understanding and clinical assessment, and adjustments in the haemodynamic definitions and classification of PH-LHD, the haemodynamic interrelations in combined post- and pre-capillary PH are complex, definitions and prognostic significance of haemodynamic variables characterizing the degree of pre-capillary PH in LHD remain suboptimal, and there are currently no evidence-based recommendations for the management of PH-LHD. Here, we highlight the prevalence and significance of PH and RV dysfunction in patients with both HF with reduced ejection fraction (HFrEF) and HF with preserved ejection fraction (HFpEF), and provide insights into the complex pathophysiology of cardiopulmonary interaction in LHD, which may lead to the evolution from a ‘left ventricular phenotype’ to a ‘right ventricular phenotype’ across the natural history of HF. Furthermore, we propose to better define the individual phenotype of PH by integrating the clinical context, non-invasive assessment, and invasive haemodynamic variables in a structured diagnostic work-up. Finally, we challenge current definitions and diagnostic short falls, and discuss gaps in evidence, therapeutic options and the necessity for future developments in this context. PMID:26508169

  7. Left atrium segmentation for atrial fibrillation ablation

    Science.gov (United States)

    Karim, R.; Mohiaddin, R.; Rueckert, D.

    2008-03-01

    Segmentation of the left atrium is vital for pre-operative assessment of its anatomy in radio-frequency catheter ablation (RFCA) surgery. RFCA is commonly used for treating atrial fibrillation. In this paper we present an semi-automatic approach for segmenting the left atrium and the pulmonary veins from MR angiography (MRA) data sets. We also present an automatic approach for further subdividing the segmented atrium into the atrium body and the pulmonary veins. The segmentation algorithm is based on the notion that in MRA the atrium becomes connected to surrounding structures via partial volume affected voxels and narrow vessels, the atrium can be separated if these regions are characterized and identified. The blood pool, obtained by subtracting the pre- and post-contrast scans, is first segmented using a region-growing approach. The segmented blood pool is then subdivided into disjoint subdivisions based on its Euclidean distance transform. These subdivisions are then merged automatically starting from a seed point and stopping at points where the atrium leaks into a neighbouring structure. The resulting merged subdivisions produce the segmented atrium. Measuring the size of the pulmonary vein ostium is vital for selecting the optimal Lasso catheter diameter. We present a second technique for automatically identifying the atrium body from segmented left atrium images. The separating surface between the atrium body and the pulmonary veins gives the ostia locations and can play an important role in measuring their diameters. The technique relies on evolving interfaces modelled using level sets. Results have been presented on 20 patient MRA datasets.

  8. An unusual cause of dyspnoea complicating right upper abdominal swelling

    Institute of Scientific and Technical Information of China (English)

    Sanjay Kumar Mandal; Partha Pratim Chakraborty; Rana Bhattacharjee; Subhasis Roy Chowdhury; Shounak Majumdar

    2006-01-01

    A middle aged, non-addict male presented with right upper abdominal pain and swelling with respiratory distress. Examination revealed central cyanosis, bipedal pitting edema with prominentepigastric and back veins.Liver was enlarged, tender, spanned 20 cm without any splenomegaly or ascites. Other systems were clinically normal. Laboratory investigations showed polymorphonuclear leucocytosis with slightly deranged liver function. Abdominal ultrasonography showed an abscess in the right lobe of the liver with compressed inferior vena cava (IVC), middle and left hepatic veins.Arterial blood gas (ABG) documented hypoxia with orthodeoxia and air-contrast echocardiography was suggestive of an intrapulmonary shunt. A diagnosis of hepato-pulmonary syndrome (HPS) was made with near normal liver function secondary to amebic liver abscess.It reversed completely following successful treatment of the liver abscess.

  9. Storage Allocation in Automated Container Terminals: the Upper Level

    Directory of Open Access Journals (Sweden)

    Mengjue Xia

    2016-10-01

    Full Text Available Nowadays automation is a trend of container terminals all over the world. Although not applied in current automated container terminals, storage allocation is indispensable in conventional container terminals, and promising for automated container terminals in future. This paper seeks into the storage allocation problem in automated container terminals and proposed a two level structure for the problem. A mixed integer programming model is built for the upper level, and a modified Particle Swarm Optimization (PSO algorithm is applied to solve the model. The applicable conditions of the model is investigated by numerical experiments, so as the performance of the algorithm in different problem scales. It is left to future research the lower level of the problem and the potential benefit of storage allocation to automated container terminals.

  10. Silent giant left atrium. A case report.

    Science.gov (United States)

    Badui, E; Delgado, C; Enciso, R; Graef, A; Solorio, S; Madrid, R; Cruz, H

    1995-05-01

    A sixty-two-year-old white woman with a 14.5 cm (145 mm) silent giant left atrial enlargement secondary probably to rheumatic heart disease is presented. Aside from mild progressive shortness of breath during the past year, the patient had been asymptomatic all her life. Her clinical picture was manifested for the first time by syncope secondary to slow atrial fibrillation, for which a permanent pacemaker was required. The correct diagnosis of the enlarged chamber was not possible through the routine chest roentgenogram. In this case, the echocardiogram, nuclear angiogram, and computed tomography were the pertinent studies needed to reach the diagnosis.

  11. Between Right and Left Handed Media

    CERN Document Server

    Ingrey, P C; Jakeman, E; French, O E

    2008-01-01

    We report analytical calculations for the propagation of electromagnetic radiation through an inhomogeneous layer whose refractive index varies in one dimension situated between bulk right- and left-handed media. Significant field localization is generated in the layer that is caused by the coherent superposition of evanescent waves. The strength of the field localization and the transmission properties of the layer are investigated as a function of the layer width, losses and defects in the refractive index; the former two being modelled by continuous changes, and the latter by discontinuous changes, in the index profile.

  12. Dual (type IV left anterior descending artery

    Directory of Open Access Journals (Sweden)

    Ozdil Baskan

    2013-11-01

    Full Text Available Congenital coronary artery anomalies are uncommon. Dual left anterior descending coronary artery (LAD is defined as the presence of two LADs within the anterior interventricular sulcus (AIVS, and is classified into four types. Type IV is a rarely reported subtype and differs from the others, with a long LAD originating from the right coronary artery (RCA. Dual LAD is a benign coronary artery anomaly, but should be recognised especially before interventional procedures. With the increasing use of multidedector computed tomography (MDCT, it is essential for radiologists to be aware of this entity and the cross-sectional findings.

  13. Degenerate Neutrinos in Left Right Symmetric Theory

    OpenAIRE

    Joshipura, Anjan S.

    1994-01-01

    Various hints on the neutrino masses namely, ({\\em i}) the solar neutrino deficit ({\\em ii}) the atmospheric neutrino deficit ({\\em iii}) the need for the dark matter and/or ({\\em iv}) the non-zero neutrinoless double beta decay collectively imply that all the three neutrinos must be nearlty degenerate. This feature can be understood in the left right symmetric theory. We present a model based on the group $SU(2)_{L}\\times SU(2)_R\\times U(1)_{B-L}\\times SU(2)_H$ which can explain the required...

  14. Morganella morganii causing solitary liver abscess complicated by pyopericardium and left pleural effusion in a nondiabetic patient.

    Science.gov (United States)

    Tsai, Wen-Cheng; Chang, Liang-Kai

    2002-09-01

    Morganella morganii is a rare cause of solitary liver abscess in Taiwan. The complication of pyopericardium and pleural effusion in nondiabetic patient with solitary liver abscess are also rare. We present a case of a 48-year-old nondiabetic woman who experienced with epigastric discomfort 1 month prior to admission. Chills and fever developed 2 weeks before admission. Physical examination on admission revealed engorgement of the jugular vein over the right neck, precordial friction rubs, and tenderness over the right upper quadrant of abdomen. Chest film showed mild cardiomegaly and left pleural effusion. Computed tomography of the abdomen showed liver abscess, left hepatic lobe, pyopericardium, and left pleural effusion. M. morganii was isolated from 2 sets of blood cultures, one set of hepatic pus culture, and one set of pericardial pus culture. After pigtail drainage of liver abscess, pyopericardium for 12 days, and ceftriaxone intravenous administration for 19 days, the patient was discharged in stable condition.

  15. Acquired Upper Extremity Growth Arrest.

    Science.gov (United States)

    Gauger, Erich M; Casnovsky, Lauren L; Gauger, Erica J; Bohn, Deborah C; Van Heest, Ann E

    2017-01-01

    This study reviewed the clinical history and management of acquired growth arrest in the upper extremity in pediatric patients. The records of all patients presenting from 1996 to 2012 with radiographically proven acquired growth arrest were reviewed. Records were examined to determine the etiology and site of growth arrest, management, and complications. Patients with tumors or hereditary etiology were excluded. A total of 44 patients (24 boys and 20 girls) with 51 physeal arrests who presented at a mean age of 10.6 years (range, 0.8-18.2 years) were included in the study. The distal radius was the most common site (n=24), followed by the distal humerus (n=8), metacarpal (n=6), distal ulna (n=5), proximal humerus (n=4), radial head (n=3), and olecranon (n=1). Growth arrest was secondary to trauma (n=22), infection (n=11), idiopathy (n=6), inflammation (n=2), compartment syndrome (n=2), and avascular necrosis (n=1). Twenty-six patients (59%) underwent surgical intervention to address deformity caused by the physeal arrest. Operative procedures included ipsilateral unaffected bone epiphysiodesis (n=21), shortening osteotomy (n=10), lengthening osteotomy (n=8), excision of physeal bar or bone fragment (n=2), angular correction osteotomy (n=1), and creation of single bone forearm (n=1). Four complications occurred; 3 of these required additional procedures. Acquired upper extremity growth arrest usually is caused by trauma or infection, and the most frequent site is the distal radius. Growth disturbances due to premature arrest can be treated effectively with epiphysiodesis or osteotomy. In this series, the specific site of anatomic growth arrest was the primary factor in determining treatment. [Orthopedics. 2017; 40(1):e95-e103.]. Copyright 2016, SLACK Incorporated.

  16. Upper-Stage Flight Experiment

    Science.gov (United States)

    Anderson, W. E.; Boxwell, R.; Crockett, D. V.; Ross, R.; Lewis, T.; McNeal, C.; Verdarame, K.

    1999-01-01

    For propulsion applications that require that the propellants are storable for long periods, have a high density impulse, and are environmentally clean and non-toxic, the best choice is a combination of high-concentration hydrogen peroxide (High Test Peroxide, or HTP) and a liquid hydrocarbon (LHC) fuel. The HTP/LHC combination is suitable for low-cost launch vehicles, space taxi and space maneuvering vehicles, and kick stages. Orbital Sciences Corporation is under contract with the NASA Marshall Space Flight Center in cooperation with the Air Force Research Lab to design, develop and demonstrate a new low-cost liquid upper stage based on HTP and JP-8. The Upper Stage Flight Experiment (USFE) focuses on key technologies necessary to demonstrate the operation of an inherently simple propulsion system with an innovative, state-of-the-art structure. Two key low-cost vehicle elements will be demonstrated - a 10,000 lbf thrust engine and an integrated composite tank structure. The suborbital flight test of the USFE is scheduled for 2001. Preceding the flight tests are two major series of ground tests at NASA Stennis Space Center and a subscale tank development program to identify compatible composite materials and to verify their compatibility over long periods of time. The ground tests include a thrust chamber development test series and an integrated stage test. This paper summarizes the results from the first phase of the thrust chamber development tests and the results to date from the tank material compatibility tests. Engine and tank configurations that meet the goals of the program are described.

  17. Upper gastrointestinal physiology and diseases.

    Science.gov (United States)

    Waldum, Helge L; Kleveland, Per M; Fossmark, Reidar

    2015-06-01

    Nordic research on physiology and pathophysiology of the upper gastrointestinal tract has flourished during the last 50 years. Swedish surgeons and physiologists were in the frontline of research on the regulation of gastric acid secretion. This research finally led to the development of omeprazole, the first proton pump inhibitor. When Swedish physiologists developed methods allowing the assessment of acid secretion in isolated oxyntic glands and isolated parietal cells, the understanding of mechanisms by which gastric acid secretion is regulated took a great step forward. Similarly, in Trondheim, Norway, the acid producing isolated rat stomach model combined with a sensitive and specific method for determination of histamine made it possible to evaluate this regulation qualitatively as well as quantitatively. In Lund, Sweden, the identification of the enterochromaffin-like cell as the cell taking part in the regulation of acid secretion by producing and releasing histamine was of fundamental importance both physiologically and clinically. Jorpes and Mutt established a center at Karolinska Institutet in Stockholm for the purification of gastrointestinal hormones in the 1960s, and Danes followed up this work by excelling in the field of determination and assessment of biological role of gastrointestinal hormones. A Finnish group was for a long period in the forefront of research on gastritis, and the authors' own studies on the classification of gastric cancer and the role of gastrin in the development of gastric neoplasia are of importance. It can, accordingly, be concluded that Nordic researchers have been central in the research on area of the upper gastrointestinal physiology and diseases.

  18. Postures of upper extremity correlated with carpal tunnel syndrome (CTS

    Directory of Open Access Journals (Sweden)

    Chia-Liang Chiang

    2017-04-01

    Full Text Available Objectives: Non-medical hospital staff members are in frequent contact with patients and therefore are required to perform a wide variety of repetitive and high-frequency activities. The objective of this study was to assess the relationships between upper extremity activity and carpal tunnel syndrome (CTS among non-medical hospital staff members. Material and Methods: Carpal tunnel syndrome in 144 non-medical hospital staff members was diagnosed using the Nordic Musculoskeletal Questionnaire (NMQ, a physician’s diagnosis, physical examination (Tinel’s signs and Phalen test and a nerve conduction velocity (NCV test. In addition, an ergonomic assessment was performed and a video camera was used to record the physical activities at work. Results: The prevalence rate of CTS was highest for the NMQ (51.9%, followed by physician’s diagnosis (49.5% for the right hand, 29.9% for the left hand, physical examination (54.7%, and nerve conduction test (motor nerve 27.5% and 25%, sensory nerve 21.7% and 15%, for right and left hands, respectively. Based on logistic regression models for the NMQ and physician’s diagnoses, there was a dose-dependently higher risk of CTS with the upper extremity index among participants, but this was non-significant based on the physical examination and nerve conduction tests. Conclusions: Nerve conduction velocity is the gold standard in diagnosis of CTS, but use of NMQ and physician’s diagnosis may overestimate the incidence of CTS in workers who have been engaging in repetitive stress activities for a relatively short time. Int J Occup Med Environ Health 2017;30(2:281–290

  19. Changes in proprioception and pain in patients with neck pain after upper thoracic manipulation.

    Science.gov (United States)

    Yang, Jinmo; Lee, Byoungkwon; Kim, Changbeom

    2015-03-01

    [Purpose] The purpose of this study was to conduct cervical stability training and upper thoracic manipulation for patients with chronic neck pain and then investigate the changes of cervical proprioception and pain. [Subjects and Methods] Subjects were 30 workers with mechanical neck pain, who were randomly divided into an upper thoracic manipulation group and a cervical stability training group. Upper thoracic manipulation after cervical stability training was conducted for the upper thoracic manipulation group, and only stability training was conducted for the cervical stability training group. The intervention period was six weeks, and consisted of three sessions a week, each of which lasted for 30 minutes. For proprioception measurement, an electro-goniometer was used to measure reposition sense before and after the intervention. The visual analogue scale was used to assess pain. [Results] After the intervention, the error angle was significantly smaller in flexion and right left side-bending, and pain was significantly reduced in the upper thoracic manipulation group. According to the post intervention comparison of the two groups, there were significant differences in the proprioception and pain values. [Conclusion] Conducting both cervical stability training and upper thoracic manipulation for patients with chronic neck pain was more helpful for the improvement of proprioception and pain than cervical stability training alone.

  20. Heart Failure with Transient Left Bundle Branch Block in the Setting of Left Coronary Fistula

    Directory of Open Access Journals (Sweden)

    Stephen P. Juraschek

    2011-01-01

    Full Text Available Coronary arterial fistulas are rare communications between vessels or chambers of the heart. Although cardiac symptoms associated with fistulas are well described, fistulas are seldom considered in the differential diagnosis of acute myocardial ischemia. We describe the case of a 64-year-old man who presented with left shoulder pain, signs of heart failure, and a new left bundle branch block (LBBB. Cardiac catheterization revealed a small left anterior descending (LAD-to-pulmonary artery (PA fistula. Diuresis led to subjective improvement of the patient's symptoms and within several days the LBBB resolved. We hypothesize that the coronary fistula in this patient contributed to transient ischemia of the LAD territory through a coronary steal mechanism. We elected to observe rather than repair the fistula, as his symptoms and ECG changes resolved with treatment of his heart failure.

  1. Shared Frailty Model for Left-Truncated Multivariate Survival Data

    DEFF Research Database (Denmark)

    Jensen, Henrik; Brookmeyer, Ron; Aaby, Peter;

    multivariate survival data, left truncation, multiplicative hazard model, shared gamma frailty, conditional model, piecewise exponential model, childhood survival......multivariate survival data, left truncation, multiplicative hazard model, shared gamma frailty, conditional model, piecewise exponential model, childhood survival...

  2. Endoventriculoplasty using autologous endocardium for anterior left ventricular aneurysms

    NARCIS (Netherlands)

    Grandjean, JG; Mariani, MA; D'Alfonso, A; Musazzi, A; Boonstra, PW

    Background: There is currently consensus that endoventriculoplasty is the treatment of choice for an anterior left ventricular aneurysm. We describe here a new technique of endoventriculoplasty using autologous endocardium for left ventricular anterior aneurysm. Method: From 1990 until 2003, 49

  3. Surgical Management of Intramyocardial Left Anterior Descending Artery.

    Science.gov (United States)

    De Salvatore, Sergio; Segreto, Antonio; Chiusaroli, Alessandro; Congiu, Stefano; Bizzarri, Federico

    2015-11-01

    An intramyocardial left anterior descending artery can be found in up to 30% of patients undergoing coronary artery bypass graft procedures. We review the various techniques available to identify an intramyocardial left anterior descending artery.

  4. Influence of Gluteus Maximus Inhibition on Upper Trapezius Overactivity in Chronic Mechanical Neck Pain with Radiculopathy

    Directory of Open Access Journals (Sweden)

    Ghada Mohamed Koura

    2017-03-01

    Full Text Available Background: Mechanical neck pain is the most common type of neck pain and commonly to accompany with radiculopathy. Patients of neck pain exhibit greater activation of accessory muscles, (sternocleidomastoid, anterior scalene, and upper trapezius muscles and may also show changed patterns of motor control of other postural muscles as pelvic muscles for reducing activation of painful muscles of neck. Aim of the study: To determine if there is an association between gluteus maximus inhibition and overactivity of upper fibres of trapezius in patients with chronic mechanical neck pain with radiculopathy. Materials and Methods: Forty female patients participated in this study diagnosed as chronic mechanical neck pain with radiculopathy. Amplitude and onset of muscle activation were assessed by using the surface electromyography (EMG during prone hip extension test. Results: The results of this study demonstrated that there is no correlation between the amplitude of EMG activity of right and left gluteus maximus and the amplitude of EMG activity of right and left upper trapezius (P<0.05. Conclusion: It can be concluded that the overactivity of the upper trapezius muscle in patients with chronic mechanical neck pain with radiculopathy is not related to the inhibition of the gluteus maximus muscle during prone hip extension test.

  5. Coronary artery to left ventricle fistula

    Directory of Open Access Journals (Sweden)

    Kumar Vivek

    2005-11-01

    Full Text Available Abstract Background Coronary cameral fistulas are an uncommon entity, the etiology of which may be congenital or traumatic. They involve abnormal termination of a coronary artery, usually the right coronary, into a cardiac chamber, usually the right ventricle. Case Presentation We describe a case of female patient with severe aortic stenosis and interventricular septal hypertrophy that underwent bioprosthetic aortic valve replacement with concomitant septal myectomy. On subsequent follow-up an abnormal flow traversing the septum into the left ventricle was identified and Doppler interrogation demonstrated a continuous flow, with a predominantly diastolic component, consistent with coronary arterial flow. Conclusion The literature on coronary cameral fistulas is reviewed and the etiology of the diagnostic findings discussed. In our patient, a coronary artery to left ventricle fistula was the most likely explanation secondary to trauma to the septal perforator artery during myectomy. Since the patient was asymptomatic at the time of diagnosis no intervention was recommended and has done well on follow-up.

  6. Pulmonary hypertension due to left heart diseases.

    Science.gov (United States)

    Vachiéry, Jean-Luc; Adir, Yochai; Barberà, Joan Albert; Champion, Hunter; Coghlan, John Gerard; Cottin, Vincent; De Marco, Teresa; Galiè, Nazzareno; Ghio, Stefano; Gibbs, J Simon R; Martinez, Fernando; Semigran, Marc; Simonneau, Gerald; Wells, Athol; Seeger, Werner

    2013-12-24

    Pulmonary hypertension (PH), a common complication of left heart diseases (LHD), negatively impacts symptoms, exercise capacity, and outcome. Although the true prevalence of PH-LHD is unknown, a subset of patients might present significant PH that cannot be explained by a passive increase in left-sided filling pressures. The term "out-of-proportion" PH has been used to identify that population without a clear definition, which has been found less than ideal and created confusion. We propose a change in terminology and a new definition of PH due to LHD. We suggest to abandon "out-of-proportion" PH and to distinguish "isolated post-capillary PH" from "post-capillary PH with a pre-capillary component" on the basis of the pressure difference between diastolic pulmonary artery pressure and pulmonary artery wedge pressure. Although there is no validated treatment for PH-LHD, we provide insights into management and discuss completed and randomized trials in this condition. Finally, we provide recommendations for future clinical trials to establish safety and efficacy of novel compounds to target this area of unmet medical need. Copyright © 2013 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

  7. [Hypoplastic left heart syndrome (general review)].

    Science.gov (United States)

    Tláskal, T; Povýsilová, V; Vondrys, D; Skovránek, J

    1999-05-01

    The hypoplastic left heart syndrome (HLHS) is a critical congenital heart lesion with a small left ventricle in combination with stenosis or atresia of the aortic and the mitral valve. This heart disease is associated with a nearly 100% mortality at neonatal age. Until recently, this heart lesion was considered inoperable because of extremely unfavourable morphology. Introduction of the Norwood three-step reconstructive operation on one hand, and heart transplantation in neonates, on the other hand, improved the prognosis of patients with this complex heart lesion. In our country, however, this heart disease, if found during the first months of pregnancy, represents an indication for its termination, and neonates with HLHS are offered only symptomatic medical treatment. On basis of good experience from several most experienced cardiac centres we believe that it is necessary to reassess the statement considering HLHS as an inoperable disease. The main change from this aspect necessitates, however, a detailed analysis of the whole problem not only from the morphological, clinical and surgical point of view but also from philosophical, psychological, socio-economic and health care organisation aspects.

  8. Endometrial Adenocarcinoma with Concomitant Left Atrial Myxoma

    Directory of Open Access Journals (Sweden)

    Lisa N. Abaid

    2009-08-01

    Full Text Available Background: Atrial myxomas are the most common primary heart tumors and predominantly considered to be benign lesions. Case Study: We report a case involving a 77-year-old woman who presented with a pelvic mass. She was found to have a primary endometrial cancer and primary lung cancer with concomitant metastatic adrenal gland and mesenteric lesions. Her prior medical history also included an untreated 4.0 × 2.0-cm left atrial myxoma which was identified on CT scan during the workup of her pelvic mass. Results: A clinical decision was made to proceed with surgery for the pelvic mass with a subsequent recommendation for left atrial mass resection. Currently, the patient is scheduled to begin chemotherapy for primary lung cancer. Conclusion: The reported incidence of uterine cancer and a concurrent atrial myxoma is very rare. Consequently, the manner and timing in which treatment should be provided is imprecise. In the present case, the risk for cardiac complications was high, but given the presence of a partial bowel obstruction and the need to diagnose the primary site of her metastatic malignancy, the decision was made to proceed with exploratory abdominal surgery.

  9. Tamponade by an expanding left ventricular pseudoaneurysm: A unique presentation.

    Science.gov (United States)

    Mahesh, Balakrishnan; Ong, Ping; Kutty, Ramesh; Abu-Omar, Yasir

    2015-10-01

    Left ventricular free wall rupture secondary to myocardial infarction is an uncommon but catastrophic event requiring emergency surgery. We describe a unique presentation of left ventricular free wall rupture as delayed tamponade caused by a gradually expanding pseudoaneurysm compressing the left atrium, leading to pulmonary congestion that required increasing respiratory support to maintain oxygenation, and necessitated emergency surgery. We discuss the options available to treat pseudoaneurysms due to left ventricular free wall rupture.

  10. Isolated Left Pulmonary Artery Agenesis: A Case Report

    OpenAIRE

    Tansel Ansal Balcı; Zehra Pınar Koç; Gamze Kırkıl; Ahmet Kürşad Poyraz

    2012-01-01

    Unilateral pulmonary artery agenesis without any cardiovascular malformation is a rare anomaly. We present the imaging findings of a patient who was diagnosed as isolated left pulmonary artery agenesis. A 27-year-old female patient was admitted to our hospital due to dyspnea during exercise for five years. Chest X-ray revealed minimally small left pulmonary hilum and left lung. She was admitted to our clinic with the suspicion of pulmonary artery pathology. Absent perfusion of the left lung w...

  11. New strict left bundle branch block criteria reflect left ventricular activation differences

    DEFF Research Database (Denmark)

    Emerek, Kasper Janus Grønn; Risum, Niels; Hjortshøj, Søren Pihlkjær;

    2015-01-01

    applying new strict ECG criteria subsequent rates of response in DCM were 18/19 (95%) and in IHD of 18/23 (78%) respectively, p... ventricular electrical delay (RV-LV-IED) was measured. Response to CRT was defined as ≥15% decrease in left ventricular end-systolic volume. RESULTS: Eighteen of 20 (90%) patients with non-ischemic dilated cardiomyopathy (DCM) and 18 of 29 (62%) with ischemic heart disease (IHD) responded to CRT, p.... CONCLUSION: Interventricular electrical delay predicts left ventricular remodeling after CRT and new, strict ECG criteria of LBBB are superior in predicting remodeling....

  12. Left coronary artery stenosis causing left ventricular dysfunction in two children with supravalvular aortic stenosis.

    Science.gov (United States)

    Yildiz, Okan; Altin, Firat H; Kaya, Mehmet; Ozyılmaz, Isa; Guzeltas, Alper; Erek, Ersin

    2015-04-01

    Congenital supravalvar aortic stenosis (SVAS) is an arteriopathy associated with Williams-Beuren syndrome (WBS) and other isolated elastin gene deletions. Cardiovascular manifestations associated with WBS are characterized by obstructive arterial lesions such as SVAS and pulmonary artery stenosis in addition to bicuspid aortic valve and mitral valve prolapse. However, coronary artery ostial stenosis may be associated with SVAS, and it increases the risk of sudden death and may complicate surgical management. In this report, we present our experience with two patients having SVAS and left coronary artery ostial stenosis with associated left ventricular dysfunction. © The Author(s) 2014.

  13. Left ventricular thrombus formation after repair of anomalous left coronary artery from the pulmonary artery.

    Science.gov (United States)

    Freud, Lindsay R; Koenig, Peter R; Russell, Hyde M; Patel, Angira

    2014-04-01

    Although thrombus formation following myocardial infarction in adults is well known, intracardiac thrombosis in children is uncommon. We report the case of a large left ventricular thrombus in an infant with ischemic cardiomyopathy secondary to anomalous origin of the left coronary artery from the pulmonary artery. Given its mobility and protrusion across the aortic valve, the patient underwent urgent thrombus removal through a transaortic approach. There were no embolic or neurologic complications. This case highlights that thrombectomy may be performed safely and successfully in critically ill pediatric patients.

  14. Left Ventricular Thrombus Formation After Repair of Anomalous Left Coronary Artery From the Pulmonary Artery

    Science.gov (United States)

    Freud, Lindsay R.; Koenig, Peter R.; Russell, Hyde M.; Patel, Angira

    2014-01-01

    Although thrombus formation following myocardial infarction in adults is well known, intracardiac thrombosis in children is uncommon. We report the case of a large left ventricular thrombus in an infant with ischemic cardiomyopathy secondary to anomalous origin of the left coronary artery from the pulmonary artery. Given its mobility and protrusion across the aortic valve, the patient underwent urgent thrombus removal through a transaortic approach. There were no embolic or neurologic complications. This case highlights that thrombectomy may be performed safely and successfully in critically ill pediatric patients. PMID:24668990

  15. Anesthetic implications of total anomalous systemic venous connection to left atrium with left isomerism

    Directory of Open Access Journals (Sweden)

    Parimala Prasanna Simha

    2012-01-01

    Full Text Available Total anomalous systemic venous connection (TASVC to the left atrium (LA is a rare congenital anomaly. An 11-year-old girl presented with complaints of palpitations and cyanosis. TASVC with left isomerism and noncompaction of LV was diagnosed after contrast echocardiogram and computed tomography angiogram. The knowledge of anatomy and pathophysiology is essential for the successful management of these cases. Anesthetic concerns in this case were polycythemia, paradoxical embolism and rhythm abnormalities. The patient was successfully operated by rerouting the systemic venous connection to the right atrium.

  16. Spatial Deficit in Familial Left-Handed Children.

    Science.gov (United States)

    And Others; Eme, Robert

    1978-01-01

    The study evaluated the hypothesis that familial left-handed children, who presumably have bilateral representation of language ability, should show an impairment in spatial abiblity on 44 children (22 right handed, 11 familial left handed, and 11 nonfamilial left handed) whose average age was 8 years old. (Author/PHR)

  17. Left-Handed Children--Are They Losing Out?

    Science.gov (United States)

    Milsom, Lauren

    1995-01-01

    Discusses difficulties faced by left-handed children in everyday schoolwork. Highlights include right-handed bias of toys, clothing, and tools; the need for guidance in handwriting; problem areas including domestic science, arts and crafts, and metal and woodwork; left-hand advantages in sports and creative arts; and the European Left-Handers Club…

  18. Learning Conflict Among Mixed-Dominance Left-Handed Individuals.

    Science.gov (United States)

    Blai, Boris, Jr.

    This study investigates the hypothesis that it is mixed-dominance among left handers (i.e. left handedness and right eye and/or foot dominance), that is related to academic learning difficulties among such individuals, rather than the generally held notion that their difficulties stem from the fact that they are left handers in a "right handed…

  19. Left-Handed Students: A Forgotten Minority. Fastback 399.

    Science.gov (United States)

    Kelly, Evelyn B.

    This fastback, a booklet bound "left-handed," is designed to help educators become aware of the problems faced by left-handed students in school and to suggest ways that many of the problems might be solved. Following an introduction discussing a personal experience with left-handedness, the booklet continues with a brief history of the treatment…

  20. Elastic Band Causing Exfoliation of the Upper Permanent Central Incisors

    Directory of Open Access Journals (Sweden)

    Monica Ghislaine Oliveira Alves

    2015-01-01

    Full Text Available Objective. This study reports a case in which elastic band use culminated in the loss of the incisors. Case Report. An 11-year-old white girl was seen complaining of pain, with purulent discharge and severe tooth mobility. The bone destruction detected radiographically in the region, despite its single location and absence in posterior quadrants of the maxilla and/or mandible, was similar to that observed in Langerhans cell disease. To our surprise, an elastic band involving the midportion of the roots of the two upper central incisors was found during biopsy. The debris was removed and a metal wire was placed in permanent maxillary right and left incisors. The patient was followed up, but no improvement in tooth mobility was observed. Bone loss increased, and internal resorption and root exposure occurred, which culminated in the extraction of permanent maxillary right and left incisors. Conclusion. The present case highlights the fact that professionals sometimes are confronted by anamnestic reports never seen before.

  1. A Preliminary Observation of Weight Loss Following Left Gastric Artery Embolization in Humans

    Directory of Open Access Journals (Sweden)

    Andrew J. Gunn

    2014-01-01

    Full Text Available Background/Objectives. Embolization of the left gastric artery (LGA, which preferentially supplies the gastric fundus, has been shown to produce weight loss in animal models. However, weight loss after LGA embolization in humans has not been previously established. The aim of this study was to evaluate postprocedural weight loss in patients following LGA embolization. Subjects/Methods. A retrospective analysis of the medical records of patients who underwent LGA embolization for upper gastrointestinal (GI bleeding was performed. Postprocedural weight loss in this group was compared to a control group of patients who had undergone embolization of other arteries for upper GI bleeding. Results. The experimental group (N=19 lost an average of 7.3% of their initial body weight within three months of LGA embolization, which was significantly greater than the 2% weight loss observed in the control group (N=28 (P=0.006. No significant differences were seen between the groups in preprocedural body mass index (BMI, age, postprocedural care in the intensive care unit, history of malignancy, serum creatinine, or left ventricular ejection fraction. Conclusions. The current data suggest that body weight in humans may be modulated via LGA embolization. Continued research is warranted with prospective studies to further investigate this phenomenon.

  2. [Isolated rupture of the left main-stem bronchus during intubation with a Carlens tube].

    Science.gov (United States)

    Ortolo, B; Sainte-Rose, G; Brémant, S; Lecoeur, J; Rouge, M

    1988-01-01

    A case is reported of bronchial rupture due to a Carlens double-lumen tube. A 73 year old male patient was to undergo a double right lower and middle lobectomy for carcinoma. All went well and as expected until 20 min after the start of left-sided unilateral ventilation by way of the double-lumen tube. A sudden increase in the inspiratory pressures led to the discovery, first, of a leak around the cuff, and then, air bubbles in the mediastinum. Surgical exploration showed up the 4 cm long rupture in the pars membrana of the left main bronchus through which the cuff was herniating. The patient was reintubated and the rupture surgically repaired. The right upper lobe had not been ventilated for 45 min and there were signs of micro-atelectasia. The immediate postoperative course was rather stormy, with severe cardiac failure, recurring right upper lobe atelectasia and bilateral pulmonary infection. The patient was only definitely weaned from the respirator 40 days after the surgical incident. Although such complications with double-lumen tubes are rare, they must be recognized and surgically repaired very rapidly. A few simple rules to prevent these complications are discussed.

  3. Lacrimal gland fistula after upper eyelid blepharoplasty

    Directory of Open Access Journals (Sweden)

    Mohsen Bahmani Kashkouli

    2011-01-01

    Full Text Available To report the first case of lacrimal gland fistula after upper eyelid blepharoplasty for blepharochalasis. Standard upper blepharoplasty and the hooding excision were performed in a female with blepharochalasis. The patient developed a fistulous tract with tearing from the incision few days after hooding excision. Fistula excision and lacrimal gland repositioning were performed. There were no complications after the repositioning procedure (6 months follow up. Prolapsed lacrimal gland and fistula formation can occur after upper blepharoplasty hooding excision.

  4. Upper Palaeolithic genomes reveal deep roots of modern Eurasians

    KAUST Repository

    Jones, Eppie R.

    2015-11-16

    We extend the scope of European palaeogenomics by sequencing the genomes of Late Upper Palaeolithic (13,300 years old, 1.4-fold coverage) and Mesolithic (9,700 years old, 15.4-fold) males from western Georgia in the Caucasus and a Late Upper Palaeolithic (13,700 years old, 9.5-fold) male from Switzerland. While we detect Late Palaeolithic–Mesolithic genomic continuity in both regions, we find that Caucasus hunter-gatherers (CHG) belong to a distinct ancient clade that split from western hunter-gatherers ~45 kya, shortly after the expansion of anatomically modern humans into Europe and from the ancestors of Neolithic farmers ~25 kya, around the Last Glacial Maximum. CHG genomes significantly contributed to the Yamnaya steppe herders who migrated into Europe ~3,000 BC, supporting a formative Caucasus influence on this important Early Bronze age culture. CHG left their imprint on modern populations from the Caucasus and also central and south Asia possibly marking the arrival of Indo-Aryan languages.

  5. Upper gastrointestinal bleeding - state of the art.

    Science.gov (United States)

    Szura, Mirosław; Pasternak, Artur

    2014-01-01

    Upper gastrointestinal (GI) bleeding is a condition requiring immediate medical intervention, with high associated mortality exceeding 10%. The most common cause of upper GI bleeding is peptic ulcer disease, which largely corresponds to the intake of NSAIDs and Helicobacter pylori infection. Endoscopy is the essential tool for the diagnosis and treatment of active upper GI hemorrhage. Endoscopic therapy together with proton pump inhibitors and eradication of Helicobacter pylori significantly reduces rebleeding rates, mortality and number of emergency surgical interventions. This paper presents contemporary data on the diagnosis and treatment of upper gastrointestinal bleeding.

  6. Endoscopy for Nonvariceal Upper Gastrointestinal Bleeding

    National Research Council Canada - National Science Library

    Kim, Ki Bae; Yoon, Soon Man; Youn, Sei Jin

    2014-01-01

    Endoscopy for acute nonvariceal upper gastrointestinal bleeding plays an important role in primary diagnosis and management, particularly with respect to identification of high-risk stigmata lesions...

  7. Smartphone supported upper limb prosthesis

    Directory of Open Access Journals (Sweden)

    Hepp D.

    2015-09-01

    Full Text Available State of the art upper limb prostheses offer up to six active DoFs (degrees of freedom and are controlled using different grip patterns. This low number of DoFs combined with a machine-human-interface which does not provide control over all DoFs separately result in a lack of usability for the patient. The aim of this novel upper limb prosthesis is both offering simplified control possibilities for changing grip patterns depending on the patients’ priorities and the improvement of grasp capability. Design development followed the design process requirements given by the European Medical Device Directive 93/42 ECC and was structured into the topics mechanics, software and drive technology. First user needs were identified by literature research and by patient feedback. Consequently, concepts were evaluated against technical and usability requirements. A first evaluation prototype with one active DoF per finger was manufactured. In a second step a test setup with two active DoF per finger was designed. The prototype is connected to an Android based smartphone application. Two main grip patterns can be preselected in the software application and afterwards changed and used by the EMG signal. Three different control algorithms can be selected: “all-day”, “fine” and “tired muscle”. Further parameters can be adjusted to customize the prosthesis to the patients’ needs. First patient feedback certified the prosthesis an improved level of handling compared to the existing devices. Using the two DoF test setup, the possibilities of finger control with a neural network are evaluated at the moment. In a first user feedback test, the smartphone based software application increased the device usability, e.g. the change within preselected grip patterns and the “tired muscle” algorithm. Although the overall software application was positively rated, the handling of the prosthesis itself needs to be proven within a patient study to be

  8. Effects of sedation on echocardiographic variables of left atrial and left ventricular function in healthy cats.

    Science.gov (United States)

    Ward, Jessica L; Schober, Karsten E; Fuentes, Virginia Luis; Bonagura, John D

    2012-10-01

    Although sedation is frequently used to facilitate patient compliance in feline echocardiography, the effects of sedative drugs on echocardiographic variables have been poorly documented. This study investigated the effects of two sedation protocols on echocardiographic indices in healthy cats, with special emphasis on the assessment of left atrial size and function, as well as left ventricular diastolic performance. Seven cats underwent echocardiography (transthoracic two-dimensional, spectral Doppler, color flow Doppler and tissue Doppler imaging) before and after sedation with both acepromazine (0.1 mg/kg IM) and butorphanol (0.25 mg/kg IM), or acepromazine (0.1 mg/kg IM), butorphanol (0.25 mg/kg IM) and ketamine (1.5 mg/kg IV). Heart rate increased significantly following acepromazine/butorphanol/ketamine (mean±SD of increase, 40±26 beats/min) and non-invasive systolic blood pressure decreased significantly following acepromazine/butorphanol (mean±SD of decrease, 12±19 mmHg). The majority of echocardiographic variables were not significantly different after sedation compared with baseline values. Both sedation protocols resulted in mildly decreased left ventricular end-diastolic dimension and mildly increased left ventricular end-diastolic wall thickness. This study therefore failed to demonstrate clinically meaningful effects of these sedation protocols on echocardiographic measurements, suggesting that sedation with acepromazine, butorphanol and/or ketamine can be used to facilitate echocardiography in healthy cats.

  9. Related anomalies of origin of left vertebral and left inferior thyroid arteries

    Energy Technology Data Exchange (ETDEWEB)

    Sartor, K.; Freckmann, N.; Boeker, D.K.

    1981-01-01

    The known rare occurrence of related anomalies of origin of vertebral and inferior thyroid arteries appears not to be documented in the angiographic literature. Three cases with manifestation on the left side are presented. Embryology is discussed briefly. Knowledge of such anomalies is of importance to surgeons as well as angiographers.

  10. Rare Anomalous Origin of Superior Left Pulmonary Artery from Left Subclavian Vein

    Energy Technology Data Exchange (ETDEWEB)

    Lv, Tian-shi, E-mail: TerrenceLv@126.com; Wang, Chao, E-mail: wangchaoxs@163.com; Song, Li, E-mail: song9981@163.com; Lv, Yong-xing, E-mail: lyongxing@msn.com; Zou, Ying-hua, E-mail: yinghzou@139.com [Peking University First Hospital, Department of Interventional Radiology and Vascular Surgery (China)

    2013-10-15

    We report for the first time an extremely rare anomalous origin of the superior left pulmonary artery in a 60 year-old man. Although it was occult in clinical indications, such a malformation still ought to be considered, especially during endovascular procedures.

  11. Left Hemisphere Regions Are Critical for Language in the Face of Early Left Focal Brain Injury

    Science.gov (United States)

    Beharelle, Anjali Raja; Dick, Anthony Steven; Josse, Goulven; Solodkin, Ana; Huttenlocher, Peter R.; Levine, Susan C.; Small, Steven L.

    2010-01-01

    A predominant theory regarding early stroke and its effect on language development, is that early left hemisphere lesions trigger compensatory processes that allow the right hemisphere to assume dominant language functions, and this is thought to underlie the near normal language development observed after early stroke. To test this theory, we…

  12. Left Inferior Frontal Cortex and Syntax: Function, Structure and Behaviour in Patients with Left Hemisphere Damage

    Science.gov (United States)

    Tyler, Lorraine K.; Marslen-Wilson, William D.; Randall, Billi; Wright, Paul; Devereux, Barry J.; Zhuang, Jie; Papoutsi, Marina; Stamatakis, Emmanuel A.

    2011-01-01

    For the past 150 years, neurobiological models of language have debated the role of key brain regions in language function. One consistently debated set of issues concern the role of the left inferior frontal gyrus in syntactic processing. Here we combine measures of functional activity, grey matter integrity and performance in patients with left…

  13. The effects of split keyboard geometry on upper body postures.

    Science.gov (United States)

    Rempel, David; Nathan-Roberts, Dan; Chen, Bing Yune; Odell, Dan

    2009-01-01

    Split, gabled keyboard designs can prevent or improve upper extremity pain among computer users; the mechanism appears to involve the reduction of awkward wrist and forearm postures. This study evaluated the effects of changes in opening angle, slope and height (independent variables) of a gabled (14 degrees) keyboard on typing performance and upper extremity postures. Twenty-four experienced touch typists typed on seven keyboard conditions while typing speed and right and left wrist extension, ulnar deviation, forearm pronation and elbow position were measured using a motion tracking system. The lower keyboard height led to a lower elbow height (i.e. less shoulder elevation) and less wrist ulnar deviation and forearm pronation. Keyboard slope and opening angle had mixed effects on wrist extension and ulnar deviation, forearm pronation and elbow height and separation. The findings suggest that in order to optimise wrist, forearm and upper arm postures on a split, gabled keyboard, the keyboard should be set to the lowest height of the two heights tested. Keyboard slopes in the mid-range of those tested, 0 degrees to -4 degrees, provided the least wrist extension, forearm pronation and the lowest elbow height. A keyboard opening angle in the mid-range of those tested, 15 degrees, may provide the best balance between reducing ulnar deviation while not increasing forearm pronation or elbow separation. These findings may be useful in the design of computer workstations and split keyboards. The geometry of a split keyboard can influence wrist and forearm postures. The findings of this study are relevant to the positioning and adjustment of split keyboards. The findings will also be useful for engineers who design split keyboards.

  14. Beta blockers & left ventricular hypertrophy regression.

    Science.gov (United States)

    George, Thomas; Ajit, Mullasari S; Abraham, Georgi

    2010-01-01

    Left ventricular hypertrophy (LVH) particularly in hypertensive patients is a strong predictor of adverse cardiovascular events. Identifying LVH not only helps in the prognostication but also in the choice of therapeutic drugs. The prevalence of LVH is age linked and has a direct correlation to the severity of hypertension. Adequate control of blood pressure, most importantly central aortic pressure and blocking the effects of cardiomyocyte stimulatory growth factors like Angiotensin II helps in regression of LVH. Among the various antihypertensives ACE-inhibitors and angiotensin receptor blockers are more potent than other drugs in regressing LVH. Beta blockers especially the newer cardio selective ones do still have a role in regressing LVH albeit a minor one. A meta-analysis of various studies on LVH regression shows many lacunae. There have been no consistent criteria for defining LVH and documenting LVH regression. This article reviews current evidence on the role of Beta Blockers in LVH regression.

  15. LEFT RENAL TUMOR: A RARE CADAVERIC FINDINGS

    Directory of Open Access Journals (Sweden)

    Siva Prasad

    2015-08-01

    Full Text Available A benign tumour is a non - cancerous growth that does not spread (metastasize to other parts of the body and is not usually life - threatening. Many researchers believe that most of the following types of kidney tumours are benign. However, others feel that some of these tumours have the potential to develop into renal cell carcinoma. There are no diagnostic tests that can confirm if a benign tumour has the potential to become cancerous. Benign tumours are sometimes found along with renal cell carcinoma when a removed kidney is examined by a pathologist. For these reasons, benign kidney tumours are treated like malignant tumours. In this case we have observed a male cadaver with a large tumour in the left kidney during our routine dissections of undergraduates .

  16. Psychotic Symptoms Associated with Left Caudate Infarction

    Directory of Open Access Journals (Sweden)

    Ying-Chih Cheng

    2015-09-01

    Full Text Available Psychotic symptoms following acquired brain lesion are relatively rare, and thus, the specific association linking such symptoms to the distinct brain structure remains unclear. The frontal–subcortical circuits are thought to modulate motor activity and human behavior, and have been reported to be associated with many neuropsychiatric symptoms. We herein report the case of a 77-year-old man without previous psychiatric disorder who developed a new onset of psychotic symptoms following left caudate infarction. The presented case supports the fact that psychosis might arise from alteration of the distinct brain structure. The functional impairment of the frontal–subcortical circuits may be a critical factor linking the pathogenesis of psychosis associated with acquired brain lesion.

  17. Degenerate Neutrinos in Left Right Symmetric Theory

    CERN Document Server

    Joshipura, A S

    1995-01-01

    Various hints on the neutrino masses namely, ({\\em i}) the solar neutrino deficit ({\\em ii}) the atmospheric neutrino deficit ({\\em iii}) the need for the dark matter and/or ({\\em iv}) the non-zero neutrinoless double beta decay collectively imply that all the three neutrinos must be nearlty degenerate. This feature can be understood in the left right symmetric theory. We present a model based on the group $SU(2)_{L}\\times SU(2)_R\\times U(1)_{B-L}\\times SU(2)_H$ which can explain the required departures from degeneracy in neutrino masses and large mixing among them without assuming any of the mixing in the quark or charged lepton sector to be large as would be expected in a typical $SO(10)$ model.

  18. Heredity in fundamental left complemented algebras

    Directory of Open Access Journals (Sweden)

    Marina Haralampidou

    2016-06-01

    Full Text Available In the present paper, we introduce the notion of a fundamental complemented linear space, through continuous projections. This notion is hereditary. Relative to this, we prove that if a certain topological algebra is fundamental, then a concrete subspace is fundamental too. For a fundamental complemented linear space, we define the notion of continuity of the complementor. In some cases, we employ a generalized notion of complementation, that of (left precomplementation. In our main result, the continuity of the complementor for a certain fundamental complemented (topological algebra is inherited to the induced vector complementor of the underlying linear space of a certain right ideal. Weakly fundamental algebras are also considered in the context of locally convex ones.

  19. Retrieval of embolized left atrial appendage devices.

    Science.gov (United States)

    Fahmy, Peter; Eng, Lim; Saw, Jacqueline

    2016-09-28

    Percutaneous left atrial appendage (LAA) closure is gaining interest as an alternative option for prevention of strokes in patients with Atrial Fibrillation (AF), especially for those with contraindications to anticoagulation. Complications from these procedures are well described in the medical literature. LAA closures may lead to pericardial effusion, device-associated thrombus, and device embolization. Understanding the reasons for embolization, strategies to avoid embolization, and the techniques for retrieval of LAA devices (ACP/AMULET and WATCHMAN) should be appreciated by endovascular implanters. We describe two cases of LAA device embolization that were both successfully retrieved percutaneously and other percutaneous techniques to safely retrieve embolized LAA devices. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc.

  20. Amplitudes for left-handed strings

    CERN Document Server

    Siegel, W

    2015-01-01

    We consider a class of string-like models introduced previously where all modes are left-handed, all states are massless, T-duality is manifest, and only a finite number of orders in the string tension can appear. These theories arise from standard string theories by a singular gauge limit and associated change in worldsheet boundary conditions. In this paper we show how to calculate amplitudes by using the gauge parameter as an infrared regulator. The amplitudes produce the Cachazo-He-Yuan delta-functions after some modular integration; the Mason-Skinner string-like action and amplitudes arise from the zero-tension (infinite-slope) limit. However, without the limit the amplitudes have the same problems as found in the Mason-Skinner formalism.

  1. Schwannoma in the Upper Limbs

    Directory of Open Access Journals (Sweden)

    Chris Yuk Kwan Tang

    2013-01-01

    Full Text Available Schwannomas are the commonest tumours of peripheral nerves. Despite the classical description that schwannomas are well encapsulated and can be completely enucleated during excision, a portion of them have fascicular involvement and could not be completely shelled out. A retrospective review for 8 patients was carried out over 10 years. 75% of schwannoma occurred over the distal region of upper limb (at elbow or distal to it. It occurs more in the mixed nerve instead of pure sensory or motor nerve. 50% of patients had mixed nerve involvement. Fascicular involvement was very common in schwannoma (75% of patients. Removal of the tumour with fascicles can cause functional deficit. At present, there is no method (including preoperative MRI which can predict the occurrence of fascicular involvement; the authors therefore proposed a new system to stratify patients who may benefit from interfascicular nerve grafts. In this group of patients, the authors strongly recommend that the possibility and option of nerve graft should be discussed with patients prior to schwannoma excision, so that nerve grafting could be directly proceeded with patient consent in case there is fascicular involvement of tumour found intraoperatively.

  2. A two phase harmonic model for left ventricular function

    CERN Document Server

    Dubi, S; Dubi, Y

    2006-01-01

    A minimal model for mechanical motion of the left ventricle is proposed. The model assumes the left ventricle to be a harmonic oscillator with two distinct phases, simulating the systolic and diastolic phases, at which both the amplitude and the elastic constant of the oscillator are different. Taking into account the pressure within the left ventricle, the model shows qualitative agreement with functional parameters of the left ventricle. The model allows for a natural explanation of heart failure with preserved systolic left ventricular function, also termed diastolic heart failure. Specifically, the rise in left ventricular filling pressures following increased left-ventricular wall stiffness is attributed to a mechanism aimed at preserving heart rate and cardiac output.

  3. A Class of Left E-adequate Semigroups

    Institute of Scientific and Technical Information of China (English)

    LI YONG-HUA; HE YONG

    2010-01-01

    In this paper we establish a construction of a class of left E-adequate semigroups by using semilattices of cancellative monoids and fundamental left E-adequate semigroups. We first introduce concepts of type μ+ (μ*, μ) abundant semigroups and type μ+ left E-adequate semigroups. In fact, regular semigroups are type μ+ abundant semigroups and inverse semigroups are type μ+ left E-adequate semigroups. Next, we construct a special kind of algebras called E+-product. It is proved that every E+-product is a type μ+ left E-adequate semigroup, and every type μ+ left E-adequate semigroup is isomorphic to an E+-product of a semilattice of cancellative monoids with a fundamental left E-adequate semigroup. Finally, as a corollary of the main result, it is deduced that every inverse semigroup is isomorphic to an E+-product of a Clifford semigroup by a fundamental inverse semigroup.

  4. Proprioceptive target matching asymmetries in left-handed individuals.

    Science.gov (United States)

    Goble, Daniel J; Noble, Brittany C; Brown, Susan H

    2009-08-01

    In right-handers, the ability to reproduce proprioceptive targets has been shown to be asymmetric, favoring the non-preferred left arm. The present study sought to determine whether a similar arm/hemisphere asymmetry exists for left-handers. Ten strong left-handed adults used the left or right arm to perform proprioceptive target matching tasks that varied in processing demands (i.e., need for memory, interhemispheric transfer) and target amplitude (20, 40 degrees). Similar to right-handers, left-handed individuals had smaller total errors when matching with the non-preferred arm. This asymmetry was greatest in conditions with increased processing demands and larger amplitude targets. These results provide the first evidence to date of right arm/left hemisphere dominance for proprioceptive target matching in left-handers that is the "mirror image" of right-handers.

  5. Left Atrial Tachycardia After Pulmonary Vein Isolation for Atrial Fibrillation

    Directory of Open Access Journals (Sweden)

    Kenichi Hashimoto, MD

    2005-01-01

    Full Text Available Left atrial tachycardia (AT has been reported to occur after pulmonary vein isolation (PVI for the treatment of atrial fibrillation (AF. We treated 3 patients who developed AT of different mechanisms following PVI. In case 1, focal AT originating at the ostium of the left superior PV was demonstrated and focal radiofrequency ablation was performed at the breakthrough point at the ostium of the left superior PV terminated the AT. In case 2, AT was shown to be counterclockwise macroreentrant AT around the left inferior PV through the conduction gap of the left sided posterior wall for which linear ablation was performed between left superior and inferior PVs. Focal ablation at the conduction gap terminated the AT. In case 3, a macroreentrant AT propagating around the mitral annulus was demonstrated and linear ablation between left inferior pulmonary vein and mitral annulus (mitral isthmus terminated the AT.

  6. Pedestrian safety under permissive left-turn signal control

    Directory of Open Access Journals (Sweden)

    Yi Qi

    2017-06-01

    Full Text Available At intersections with permissive only signal control, pedestrians will move at the phase with the parallel through vehicular movement and the permissive left-turn movement. The left-turn vehicles have to yield to both opposing vehicles and pedestrians at the crosswalk. Under such complicated driving conditions, collision risks rise if left-turn vehicles make misjudgments and fail to yield to the pedestrians. In this research, driving-simulation based experiments were conducted for identifying and assessing the impacts of the factors that contribute to the collision between the left-turn vehicles and the pedestrians during the permissive left-turn phase. The results of this study showed that the percentage of left-turn trucks and the pedestrian volume has significant impacts on the pedestrian safety under permissive left-turn signal control.

  7. Upper gastrointestinal bleeding in patients with CKD.

    Science.gov (United States)

    Liang, Chih-Chia; Wang, Su-Ming; Kuo, Huey-Liang; Chang, Chiz-Tzung; Liu, Jiung-Hsiun; Lin, Hsin-Hung; Wang, I-Kuan; Yang, Ya-Fei; Lu, Yueh-Ju; Chou, Che-Yi; Huang, Chiu-Ching

    2014-08-07

    Patients with CKD receiving maintenance dialysis are at risk for upper gastrointestinal bleeding. However, the risk of upper gastrointestinal bleeding in patients with early CKD who are not receiving dialysis is unknown. The hypothesis was that their risk of upper gastrointestinal bleeding is negatively linked to renal function. To test this hypothesis, the association between eGFR and risk of upper gastrointestinal bleeding in patients with stages 3-5 CKD who were not receiving dialysis was analyzed. Patients with stages 3-5 CKD in the CKD program from 2003 to 2009 were enrolled and prospectively followed until December of 2012 to monitor the development of upper gastrointestinal bleeding. The risk of upper gastrointestinal bleeding was analyzed using competing-risks regression with time-varying covariates. In total, 2968 patients with stages 3-5 CKD who were not receiving dialysis were followed for a median of 1.9 years. The incidence of upper gastrointestinal bleeding per 100 patient-years was 3.7 (95% confidence interval, 3.5 to 3.9) in patients with stage 3 CKD, 5.0 (95% confidence interval, 4.8 to 5.3) in patients with stage 4 CKD, and 13.9 (95% confidence interval, 13.1 to 14.8) in patients with stage 5 CKD. Higher eGFR was associated with a lower risk of upper gastrointestinal bleeding (P=0.03), with a subdistribution hazard ratio of 0.93 (95% confidence interval, 0.87 to 0.99) for every 5 ml/min per 1.73 m(2) higher eGFR. A history of upper gastrointestinal bleeding (Pupper gastrointestinal bleeding risk. In patients with CKD who are not receiving dialysis, lower renal function is associated with higher risk for upper gastrointestinal bleeding. The risk is higher in patients with previous upper gastrointestinal bleeding history and low serum albumin. Copyright © 2014 by the American Society of Nephrology.

  8. Search for W'->tb resonances with left- and right-handed couplings to fermions

    Energy Technology Data Exchange (ETDEWEB)

    Abazov, Victor Mukhamedovich; /Dubna, JINR; Abbott, Braden Keim; /Oklahoma U.; Acharya, Bannanje Sripath; /Tata Inst.; Adams, Mark Raymond; /Illinois U., Chicago; Adams, Todd; /Florida State U.; Alexeev, Guennadi D.; /Dubna, JINR; Alkhazov, Georgiy D.; /St. Petersburg, INP; Alton, Andrew K.; /Michigan U. /Augustana Coll., Sioux Falls; Alverson, George O.; /Northeastern U.; Alves, Gilvan Augusto; /Rio de Janeiro, CBPF; Ancu, Lucian Stefan; /Nijmegen U. /Fermilab

    2011-01-01

    We present a search for the production of a heavy gauge boson, W{prime}, that decays to third-generation quarks, by the D0 Collaboration in p{bar p} collisions at {radical}s = 1.96 TeV. We set 95% confidence level upper limits on the production cross section times branching fraction. For the first time, we set limits for arbitrary combinations of left- and right-handed couplings of the W{prime} boson to fermions. For couplings with the same strength as the standard model W boson, we set the following limits for M(W{prime}) > m({nu}{sub R}): M(W{prime}) > 863 GeV for purely left-handed couplings, M(W{prime}) > 885 GeV for purely right-handed couplings, and M(W{prime}) > 916 GeV if both left- and right-handed couplings are present. The limit for right-handed couplings improves for M(W{prime}) < m({nu}{sub R}) to M(W{prime}) > 890 GeV.

  9. Functional Treatment of an Asymmetry Case Having Left Side Paralysis: A Case Report

    Science.gov (United States)

    Rubenduz, Meliha; Uslu, Ozge

    2010-01-01

    This case report presents the results of functional and myofunctional treatment of a 9-year, 5-month-old male patient with laterognathy, facial asymmetry and dentofacial deformity. The patient had a history of herpes encephalitis at age 8.5 months and palsy on the left side in early childhood, and his left side remained paralyzed as a sequela. The patient had dentoalveolar asymmetry with a Class I right and Class III left canine relation, a 1.5 mm midline deviation, anterior cross-bite, an overjet of −3 mm and an overbite of 3 mm. The dentoalveolar and facial asymmetries were corrected using a modified removable appliance, with an acrylic vestibular shield inserted on the right side to guide the mandible in the upper arch and an acrylic plate with artificial teeth in the lower arch. The patient was instructed to practice myofunctional exercises regularly. In total, treatment, including observation, was completed in a period of 2 years and 10 months, at which time, a marked correction in facial asymmetry and profile and improvement in smile esthetics could be observed. PMID:20613926

  10. [Upper thoracic sympathectomy in treatment of upper limb ischaemia in distal lesions of the arterial bed].

    Science.gov (United States)

    Alukhanian, O A; Martirosian, Kh G; Aristov, D S; Kurganskiĭ, O V

    2013-01-01

    Analysed herein was efficacy of 76 videothoracoscopic upper chest sympathectomies performed for upper limb ischaemia in a total of 61 patients. Of these, 15 patients were found to suffer bilateral lesions. The findings of clinical follow up and instrumental examinations (laser Doppler flowmetry, rheovasography, measuring transcranial oxygen tension in tissues) made it possible to draw a conclusion on efficacy of upper chest sympathectomy in distal lesions of the vascular bed of the upper extremities.

  11. X-Ray Exam: Femur (Upper Leg)

    Science.gov (United States)

    ... Old Feeding Your 1- to 2-Year-Old X-Ray Exam: Femur (Upper Leg) KidsHealth > For Parents > X-Ray Exam: Femur (Upper Leg) A A A ... español Radiografía: fémur What It Is A femur X-ray is a safe and painless test that ...

  12. Upper High School Students' Understanding of Electromagnetism

    Science.gov (United States)

    Saglam, Murat; Millar, Robin

    2006-01-01

    Although electromagnetism is an important component of upper secondary school physics syllabuses in many countries, there has been relatively little research on students' understanding of the topic. A written test consisting of 16 diagnostic questions was developed and used to survey the understanding of electromagnetism of upper secondary school…

  13. Relationship of left heart size and left ventricular mass with exercise capacity in chronic heart failure

    Institute of Scientific and Technical Information of China (English)

    SHEN Yu-qin; WANG Le-min; CHE Lin; SONG Hao-ming; ZHANG Qi-ping

    2011-01-01

    Background Impaired exercise capacity is one of the most common clinical manifestations in patients with chronic heart failure (CHF). The severity of reduced exercise capacity is an indicator of disease prognosis. The aim of the current study was to investigate the association between left heart size and mass with exercise capacity.Methods A total of 74 patients were enrolled in the study, with 37 having congestive heart failure (left ventricular ejection fraction (LVEF) <0.45) and the other 37 with coronary heart disease (by coronary angiography) serving as the control group (LVEF >0.55). Echocardiography and cardiopulmonary exercise test were performed. The multiply linear regression model was used to evaluate the association between echocardiogrphic indices and exercise capacities.Results The study showed that left ventricular end diastolic / systolic diameter (LVEDD/LVESD), left atrial diameter (LAD) and left ventricular mass index (LVMI) were significantly enlarged in patients with chronic heart failure compared with controls (P <0.01). The VO2AT, Peak VO2, Load AT, and Load Peak in chronic heart failure patients were also significantly reduced compared with controls (P <0.05), VE/VCO2 slope was increased in patients with chronic heart failure (P <0.01). Multivariate linear regression analysis indicated that the patients' exercise capacity was significantly associated with the left heart size and mass, however, the direction and/or strength of the associations sometimes varied in chronic heart failure patients and controls. Load AT correlated negatively with LVEDD in chronic heart failure patients (P=0.012), while Load AT correlated positively with LVEDD in control patients (P=0.006). VE/VCO2 slope correlated positively with LAD (B=0.477, P <0.0001) in chronic heart failure patients, while the VE/VCO2 slope correlated negatively with LAD in control patients (P=0.009).Conclusion The study indicates that the size of LVEDD and LAD are important

  14. Upper gastrointestinal issues in athletes.

    Science.gov (United States)

    Waterman, Jason J; Kapur, Rahul

    2012-01-01

    Gastrointestinal (GI) complaints are common among athletes with rates in the range of 30% to 70%. Both the intensity of sport and the type of sporting activity have been shown to be contributing factors in the development of GI symptoms. Three important factors have been postulated as contributing to the pathophysiology of GI complaints in athletes: mechanical forces, altered GI blood flow, and neuroendocrine changes. As a result of those factors, gastroesophageal reflux disease (GERD), nausea, vomiting, gastritis, peptic ulcers, GI bleeding, or exercise-related transient abdominal pain (ETAP) may develop. GERD may be treated with changes in eating habits, lifestyle modifications, and training modifications. Nausea and vomiting may respond to simple training modifications, including no solid food 3 hours prior to an athletic event. Mechanical trauma, decreased splanchnic blood flow during exercise, and non-steroidal anti-inflammatory drugs (NSAID) contribute to gastritis, GI bleeding, and ulcer formation in athletes. Acid suppression with proton-pump inhibitors may be useful in athletes with persistence of any of the above symptoms. ETAP is a common, poorly-understood, self-limited acute abdominal pain which is difficult to treat. ETAP incidence increases in athletes beginning a new exercise program or increasing the intensity of their current exercise program. ETAP may respond to changes in breathing patterns or may resolve simply with continued training. Evaluation of the athlete with upper GI symptoms requires a thorough history, a detailed training log, a focused physical examination aimed at ruling out potentially serious causes of symptoms, and follow-up laboratory testing based on concerning physical examination findings.

  15. Sleep Disturbance and Upper-Extremity Disability

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    Rinne Peters

    2016-01-01

    Full Text Available Background: Although upper-extremity disability correlates with psychosocial aspects of illness the association with sleep disturbance in upper extremity disability is less certain. To evaluate whether sleep disturbance is associated with upper-extremity disability among patients with upper extremity illness, accounting for sociodemographic, condition-related, and psychosocial factors. Methods: A cohort of 111 new or follow-up patients presenting to an urban academic hospital-based hand surgeon completed a sociodemographic survey and measures of sleep disturbance (PROMIS Sleep Disturbance, disability (PROMIS Upper-Extremity Physical Function, ineffective coping strategies (PROMIS Pain Interference, and depression (PROMIS Depression. Bivariate and multivariable linear regression modeling were performed. Results: Sleep disturbance correlated with disability (r=-0.38; P

  16. The Upper Mississippi River System—Topobathy

    Science.gov (United States)

    Stone, Jayme M.; Hanson, Jenny L.; Sattler, Stephanie R.

    2017-03-23

    The Upper Mississippi River System (UMRS), the navigable part of the Upper Mississippi and Illinois Rivers, is a diverse ecosystem that contains river channels, tributaries, shallow-water wetlands, backwater lakes, and flood-plain forests. Approximately 10,000 years of geologic and hydrographic history exist within the UMRS. Because it maintains crucial wildlife and fish habitats, the dynamic ecosystems of the Upper Mississippi River Basin and its tributaries are contingent on the adjacent flood plains and water-level fluctuations of the Mississippi River. Separate data for flood-plain elevation (lidar) and riverbed elevation (bathymetry) were collected on the UMRS by the U.S. Army Corps of Engineers’ (USACE) Upper Mississippi River Restoration (UMRR) Program. Using the two elevation datasets, the U.S. Geological Survey (USGS) Upper Midwest Environmental Sciences Center (UMESC) developed a systemic topobathy dataset.

  17. A Note on Upper Convex Density

    Institute of Scientific and Technical Information of China (English)

    YIN JIAN-DONG; ZHOU ZUO-LING

    2010-01-01

    For a self-similar set E satisfying the open set condition,upper convex density is an important concept for the computation of its Hausdorff measure,and it is well known that the set of relative interior points with upper convex density 1has a full Hausdorff measure.But whether the upper convex densities of E at all the relative interior points are equal to 1? In other words,whether there exists a relative interior point of E such that the upper convex density of E at this point is less than 1?In this paper,the authors construct a self-similar set satisfying the open set condition,which has a relative interior point with upper convex density less than 1.Thereby,the above problem is sufficiently answered.

  18. Novel parameter for assessment of left atrial size in patients with hypertension: ratio of left atrial volume to left ventricular volume

    Institute of Scientific and Technical Information of China (English)

    LI Yue; CHAI Liang; ZHANG Yun; LI Lei

    2009-01-01

    Background Left atrial enlargement has been suggested as a more robust marker of diastolic dysfunction. We hypothesize that the ratio of left atrial volume to left ventricular volume (LAV/LVV) may be more reasonable to reflect left atrial enlargement in the patients with hypertension, because hypertensive patients have a characteristic of concentric remodeling of the left ventricle which is often accompanied with diastolic dysfunction. The aim of this study was to determine if the LAV/LVV can be used as a new parameter to assess left atrial size in hypertensive patients and the relationship between the LAV/LVV and diastolic dysfunction.Methods Ninety-one patients with hypertension and forty-three normal controls were studied. The hypertensive patients were assigned to the normal wall (NW) and hypertrophic wall (HW) groups. The left atrial diameter (LAD), LAV, left atrial volume index (LAVi), LVV and LAV/LVV were measured and calculated by 2-dimensional echocardiography and real time 3-dimensional echocardiography. All of the above parameters were used to evaluate the size of the left atrium. The ratio of peak E velocity of mitral valve inflow to peak E' velocity of lateral mitral annulus (E/E') was measured by pulse Doppler and tissue Doppler. This parameter was used to evaluate diastolic function. Results The LAD, LAV, LAVi, LAV/LVV and E/E' in hypertensive groups were significantly higher than those in the normal group (P <0.05 or 0.01), and those in the HW group were significantly higher than those in the NW group (P <0.05 or 0.01). The E/E' had a positive correlation with LAV, LAVi and LAV/LVV. The correlation coefficient between E/E' and LAV/LVV was relatively higher than that between E/E' and LAD or LAVi.Conclusion LAV/LVV may be used as a new index to evaluate left atrial size in hypertensive patients with diastolic dysfunction.

  19. Evaluation of left renal vein entrapment using multidetector computed tomography

    Energy Technology Data Exchange (ETDEWEB)

    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

    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.

  20. Left Ventricular Hypertrophy Evaluation in Obese Hypertensive Patients: Effect of Left Ventricular Mass Index Criteria

    Directory of Open Access Journals (Sweden)

    Eduardo Cantoni Rosa

    2002-04-01

    Full Text Available PURPOSE: To evaluate left ventricular mass (LVM index in hypertensive and normotensive obese individuals. METHODS: Using M mode echocardiography, 544 essential hypertensive and 106 normotensive patients were evaluated, and LVM was indexed for body surface area (LVM/BSA and for height² (LVM/h². The 2 indexes were then compared in both populations, in subgroups stratified according to body mass index (BMI: or = 30kg/m². RESULTS: The BSA index does not allow identification of significant differences between BMI subgroups. Indexing by height² provides significantly increased values for high BMI subgroups in normotensive and hypertensive populations. CONCLUSION: Left ventricular hypertrophy (LVH has been underestimated in the obese with the use of LVM/BSA because this index considers obesity as a physiological variable. Indexing by height² allows differences between BMI subgroups to become apparent and seems to be more appropriate for detecting LVH in obese populations.

  1. UFO in the Left Atrium: How to Capture Metal Debris Floating in the Left Atrium.

    Science.gov (United States)

    Fassini, Gaetano; Moltrasio, Massimo; Conti, Sergio; Biagioli, Viviana; Tondo, Claudio

    2016-06-01

    Electrophysiology procedures involving left atrium navigation are becoming more frequent, mostly due to the increase of atrial fibrillation ablation. Mapping catheters of different shapes and size as well as dedicated sheaths are mandatory tools for the accomplishment of procedural end point. Therefore, technical issues are expected, usually unrelated to significant risk. However, any accidental intra-atrial device loss of integrity implies a risk of cerebrovascular embolization. The lack of clear evidence on how to manage these events and the need for a quick solution complicate the scenario. We report an empirical solution in the case of debris floating in the left atrium. Copyright © 2016 Canadian Cardiovascular Society. Published by Elsevier Inc. All rights reserved.

  2. Congenital left ventricular aneurysm coexisting with left ventricular non-compaction in a newborn.

    Science.gov (United States)

    Ootani, Katsuki; Shimada, Jun; Kitagawa, Yosuke; Konno, Yuki; Miura, Fumitake; Takahashi, Toru; Ito, Etsuro; Ichinose, Kouta; Yonesaka, Susumu

    2014-10-01

    Described herein is the case of a rare combination of congenital left ventricular (LV) aneurysm and left ventricular non-compaction (LVNC) in a newborn. The patient developed refractory heart failure soon after birth and died at 5 months of age. The etiology of both congenital LV aneurysm and LVNC seems to be maldevelopment of the ventricular myocardium during early fetal life. Treatment should be individually tailored depending on clinical severity, and treatment options are limited. Given that this combination of congenital LV aneurysm and LVNC is significantly associated with poor prognosis, it appears that patients with congenital LV aneurysm and LVNC are candidates for early, aggressive intervention, including surgical aneurysmectomy and evaluation for transplantation. It is important to be aware of this combination of congenital LV aneurysm and LVNC, and to make earlier decisions on therapeutic strategy.

  3. A neonate with left pulmonary artery thrombosis and left lung hypoplasia: a case report

    Directory of Open Access Journals (Sweden)

    ElHassan Nahed O

    2010-08-01

    Full Text Available Abstract Introduction Spontaneous intrauterine arterial thrombosis and congenital pulmonary hypoplasia are rare conditions and have not been reported to occur together. The literature rather includes two reports of babies with neonatal pulmonary artery occlusion and post-infarction cysts of the lungs. Case presentation We report a case of a live Caucasian male newborn with left lung hypoplasia that occurred in association with left pulmonary artery thrombosis. Despite a critical neonatal course, including extracorporeal membrane oxygenation, this infant is alive and well at 18 months of age without any neurodevelopmental sequelae or reactive airway disease. Conclusion This association suggests the possibility of an intrauterine vascular event between the fifth and eighth weeks of gestation during early pulmonary artery and lung development.

  4. TOOL USE DISORDERS AFTER LEFT BRAIN DAMAGE

    Directory of Open Access Journals (Sweden)

    Josselin eBaumard

    2014-05-01

    Full Text Available In this paper we review studies that investigated tool use disorders in left-brain damaged (LBD patients over the last thirty years. Four tasks are classically used in the field of apraxia: Pantomime of tool use, single tool use, real tool use and mechanical problem solving. Our aim was to address two issues, namely, (1 the role of mechanical knowledge in real tool use and (2 the cognitive mechanisms underlying pantomime of tool use, a task widely employed by clinicians and researchers. To do so, we extracted data from 36 papers and computed the difference between healthy subjects and LBD patients. On the whole, pantomime of tool use is the most difficult task and real tool use is the easiest one. Moreover, associations seem to appear between pantomime of tool use, real tool use and mechanical problem solving. These results suggest that the loss of mechanical knowledge is critical in LBD patients, even if all of those tasks (and particularly pantomime of tool use might put differential demands on semantic memory and working memory.

  5. What's 'left' in the 'Garden of Sweden'?

    Science.gov (United States)

    Olsen, Gregg M

    2013-01-01

    Liberalization, restructuring, and retrenchment have been underway in Sweden for more than two decades and have rapidly accelerated under the current non-socialist coalition government. It is uncertain how much of the Swedish social policy model is "left" now, in terms of both what remains of it and its political character. A cross-temporal look at developments within Sweden reveals striking and continual rollbacks and marketization since the 1990s. However, this view must be qualified, both because Sweden's undisputed descent is from a comparatively lofty position and because there have been some noteworthy, but often ignored, gains even amidst marked decline over the past few decades. A cross-national examination indicates that, despite rapidly rising rates of income and wealth inequality, Sweden remains an egalitarian leader in several respects. This view must be qualified, too, because, while it continues to routinely out-perform Anglo nations such as Canada, the United Kingdom, and the United States, Sweden is less often, and less notably, distinct from several of its continental counterparts in Europe now. Moreover, the foundation of the model, labor strength, has been significantly undermined.

  6. ECG manifestations of left ventricular electrical remodeling.

    Science.gov (United States)

    Estes, E Harvey

    2012-01-01

    Research and thinking about the electrocardiographic manifestations of left ventricular hypertrophy has been constrained by a limited conceptual model of the process: heart disease produces chamber enlargement (increased mass), which in turn produces an altered electrocardiogram. The process is much more complex than can be represented in this simple model. A more robust and intricate model is proposed, in which heart (and vascular) disease causes structural changes, electrical changes, biochemical changes, and others, all of which interact to produce electrical remodeling of ventricular myocardium. This electrical remodeling results in a variety of ECG changes. All of these changes interact, leading to an altered clinical course, and to premature death. It is suggested that research, based on this model, can provide new clues to the processes involved, and improve the prediction of clinical outcomes. New directions in research, in recording equipment, and in organizational activities are suggested to test this new model, and to improve the usefulness of the electrocardiogram as a research and diagnostic tool.

  7. Left ventricular noncompaction: Clinical-echocardiographic study

    Directory of Open Access Journals (Sweden)

    Nikolić Aleksandra

    2012-01-01

    Full Text Available Background/Aim. Left ventricular noncompaction (LVNC is a disorder in endomyocardial morphogenesis, seen either isolated (in the absence of other cardiac anomalies or in association with congenital heart disease and some neuromuscular diseases. Intrauterine arrest of the compaction of myocardial fibers is postulated to be the reason of LVNC. Recognition of this condition is extremely important due to its high mortality and morbidity that lead to progressive heart failure, ventricular arrhythmias and thromboembolic events. The aim of this study was to determine the prevalence and clinical presentation of LVNC among consecutive outpatients according to clinical and echocardiographyic findings. Methode. A total of 3,854 consecutive patients examined at the Institute for Cardiovascular Diseases within a period January 2006 - January 2007 were included in the study. All the patients underwent echocardiographic examination using the same equipment (Vivid 7, GE Medical System. Echocardiographic parameters and clinical presentation in patients with echocardiographic criteria for LVNC were analyzed. Results. Analyzing 3,854 consecutive outpatients, using two-dimensional Color Doppler echocardiography from January 2006 to January 2007, 12 patients met the criteria for LVNC. Seven of them were male. The mean age at diagnosis was 45 ± 15 years. Analyzing clinical manifestation of LVNC it was found that seven patients had signs of heart failure, six had arrhythmias with no embolic events. Conclusion. Our results suggest that the real prevalence of LVNC may be higher than expected. New studies have to be done to solve this problem.

  8. Endocarditis in left ventricular assist device

    Science.gov (United States)

    Thyagarajan, Braghadheeswar; Kumar, Monisha Priyadarshini; Sikachi, Rutuja R; Agrawal, Abhinav

    2016-01-01

    Summary Heart failure is one of the leading causes of death in developed nations. End stage heart failure often requires cardiac transplantation for survival. The left ventricular assist device (LVAD) has been one of the biggest evolvements in heart failure management often serving as bridge to transplant or destination therapy in advanced heart failure. Like any other medical device, LVAD is associated with complications with infections being reported in many patients. Endocarditis developing secondary to the placement of LVAD is not a frequent, serious and difficult to treat condition with high morbidity and mortality. Currently, there are few retrospective studies and case reports reporting the same. In our review, we found the most common cause of endocarditis in LVAD was due to bacteria. Both bacterial and fungal endocarditis were associated with high morbidity and mortality. In this review we will be discussing the risk factors, organisms involved, diagnostic tests, management strategies, complications, and outcomes in patients who developed endocarditis secondary to LVAD placement. PMID:27672540

  9. Arterial baroreflex function and left ventricular hypertrophy

    Institute of Scientific and Technical Information of China (English)

    MIAO Chao-Yu; SU Ding-Feng

    2004-01-01

    It is well known that the arterial baroreflex(ABR)plays a key role in the regulation of heart rate and stabilization of blood pressure.Currently,it appears that ABR dysfunction is involved in the pathophysiology of cardiovascular disease states.Since the mid-1990s,a number of studies have been carried out in our laboratory to explore the pathological significance of ABR function in cardiovascular damage.This minireview summarizes our research work on the topic of ABR and left ventricular hypertrophy(LVH).On the basis of discussion concerning the importance of ABR dysfunction in hypertensive LVH and sinoaortic denervation-induced LVH,we advance a new strategy for reversal of LVH,that is,restoration of impaired ABR function.We tested this hypothesis in animal models with ABR deficiency.It was found that improvement of impaird ABR function with long-term treatment of ketanserin or candesartan was accompanied by reversal of LVH.The preliminary results indicate that it is feasible to target ABR for treatment of LVH.

  10. Fourier coefficient description of left ventricular shape.

    Science.gov (United States)

    Round, W H; Bates, R H; Ikram, H

    1991-12-01

    A method of quantifying the shape of the left ventricle of the heart as seen in 2D echocardiograms was developed. It is based on describing the shape in terms of the coefficients a fifth-order trigonometric Fourier series. Such a series has eleven Fourier coefficients which is too large a number for clinical application so pairs of coefficients are combined to give six coefficients (alpha 0, alpha 1, ... , alpha 5). A trial was conducted to test the ability of the coefficient description to classify subjects as having normal right ventricles or ventricles with an apical abnormality. The tests showed that one of the coefficients (alpha 2) was higher for the subjects with an apical abnormality and that this difference increased with exercise. This is as was expected. However, it was found to be difficult to get a reliable estimate of alpha 2 from a single scan of a patient and that it is therefore probably necessary to average data from several scans to obtain a reliable alpha 2 value for a single patient.

  11. Left Atrial Appendage Occlusion for Stroke Prevention.

    Science.gov (United States)

    Chanda, Arijit; Reilly, John P

    More than 2.3 million adults in the United States have atrial fibrillation (AF), which exposes them to a 5-fold increased risk of stroke. The left atrial appendage (LAA) appears to be the source of thrombus formation in the vast majority of these patients. Anticoagulation significantly reduces the risk of stroke, but often we encounter patients who have absolute or relative contraindication to anticoagulation. Percutaneous LAA exclusion offers an alternative to anticoagulation to decrease the risk of stroke. Three device systems are currently available in the United States. The WATCHMAN® device is the most studied and approved by Food and Drug Administration (FDA) to be used in patients with AF unsuitable for anticoagulation who are at a high risk of stroke. The Amulet® device is currently being used as part of the AMPLATZER® Amulet® LAA Occluder trial, which is a non-inferiority randomized trial comparing the Amulet® to the WATCHMAN® device. The third device in use is the LARIAT®, which is an FDA approved snare and pre-tied stich system. It is used to approximate soft tissue which in this case is the LAA. It is a hybrid system and requires both epicardial and endocardial access. The main obstacle to percutaneous LAA closure is procedural related complications, which can be minimized with optimum operator experience. Copyright © 2017 Elsevier Inc. All rights reserved.

  12. Hemodynamic forces in a model left ventricle

    Science.gov (United States)

    Domenichini, Federico; Pedrizzetti, Gianni

    2016-12-01

    Intraventricular pressure gradients were clinically demonstrated to represent one useful indicator of the left ventricle (LV) function during the development of heart failure. We analyze the fluid dynamics inside a model LV to improve the understanding of the development of hemodynamic forces (i.e., mean pressure gradient) in normal conditions and their modification in the presence of alterations of LV tissue motion. To this aim, the problem is solved numerically and the global force exchanged between blood flow and LV boundaries is computed by volume integration. We also introduce a simplified analytical model, based on global conservation laws, to estimate hemodynamic forces from the knowledge of LV tissue information commonly available in cardiac imaging. Numerical results show that the normal intraventricular gradients feature a deep brief suction at early diastolic filling and a persistent thrust during systolic ejection. In presence of abnormalities of the wall motion, the loss of time synchrony is more relevant than the loss of spatial uniformity in modifying the normal pressure gradient spatiotemporal pattern. The main findings are reproduced in the integral model, which represents a possible easy approach for integrating fluid dynamics evaluations in the clinical examination.

  13. Kinematic Analysis of the Neck and Upper Extremities During Walking in Healthy Young Adults

    Institute of Scientific and Technical Information of China (English)

    Kwon Son; Junghong Park; Seonghun Park

    2011-01-01

    The objective of this paper is to quantify the local stabilities of the neck and upper extremities (right/left shoulders and right/left elbows), and investigate differences between linear and nonlinear measurements of the associated joint motions and differences in the local stability between the upper and lower extremities. This attempt involves the calculation of a nonlinear parameter, Lyapunov Exponent (LE), and a linear parameter, Range of Motion (ROM), during treadmill walking in conjunction with a large population of healthy subjects. Joint motions of subjects were captured using a three-dimensional motion-capture system. Then mathematical chaos theory and the Rosenstein algorithm were employed to calculate LE of joints as the extent of logarithmic divergence between the neighboring state-space trajectories of flexion-extension angles. LEs computed over twenty males and twenty females were 0.037±0.023 for the neck, 0.043±0.021 for the right shoulder, 0.045±0.030 for the left shoulder, 0.032±0.021 for the right elbow, and 0.034±0.026 for the left elbow. Although statistically significant difference in the ROM was observed between all pairs of the neck and upper extremity joints, differences in the LE between all pairs of the joints as well as between males and females were not statistically significant. Between the upper and lower extremities, LEs of the neck, shoulder, and elbow were significantly smaller than those of the hip (~0.064) and the knee (~0.062). These results indicate that a statistical difference in the local stability between the upper extremity joints is not significant. However, the different result between the ROM and LE gives a strong rationale for applying both linear and nonlinear tools together to the evaluation of joint movement. The LEs of the joints calculated from a large population of healthy subjects could provide normative values for the associated joints and can be used to evaluate the recovery progress of patients with

  14. Isolated Left Pulmonary Artery Agenesis: A Case Report

    Directory of Open Access Journals (Sweden)

    Tansel Ansal Balcı

    2012-08-01

    Full Text Available Unilateral pulmonary artery agenesis without any cardiovascular malformation is a rare anomaly. We present the imaging findings of a patient who was diagnosed as isolated left pulmonary artery agenesis. A 27-year-old female patient was admitted to our hospital due to dyspnea during exercise for five years. Chest X-ray revealed minimally small left pulmonary hilum and left lung. She was admitted to our clinic with the suspicion of pulmonary artery pathology. Absent perfusion of the left lung with normal ventilation was visualized on scintigraphy. MDCT angiography of pulmonary arteries showed absent left main pulmonary artery with systemic collaterals around left hemithorax. Pulmonary artery agenesis can be asymptomatic and isolated until adulthood. Both scintigraphy and CT angiography images of pulmonary artery agenesis of a patient are rare in the literature. Pulmonary ventilation- perfusion scintigraphy can be used not only for pulmonary embolism but also pathologies involving pulmonary artery and its branches. (MIRT 2012;21:80-83

  15. Atypical interhemispheric communication in left-handed individuals.

    Science.gov (United States)

    Iwabuchi, Sarina J; Kirk, Ian J

    2009-01-28

    The relative latencies of evoked electroencephalogram potentials to lateralized visual stimuli were used to calculate the interhemispheric transfer time (IHTT) in right-handed and left-handed males. We confirmed earlier observations of a directional asymmetry in right-handed males. That is, IHTT from the right to the left hemisphere is significantly shorter than from the left to the right. We showed for the first time, however, that this directional asymmetry is not seen in left-handed males. It is suggested that differences in the cytoarchitechtonics of the right and left hemisphere (differences that may result in lateralization of function per se) underlie the asymmetric IHTT in right handers, and that these differences are less pronounced in left handers.

  16. Stopband Phenomena in the Passband of Left-Handed Metamaterials

    Institute of Scientific and Technical Information of China (English)

    ZHAO Xiao-Peng; ZHAO Qian; ZHANG Fu-Li; ZHAO Wei; LIU Ya-Hong

    2006-01-01

    Stopband phenomena are reported in the passband of left-handed metamaterials. The samples with linear defect are designed by removing one layer of split ring resonators (SRRs). It is shown that the left-handed transmission peaks have a distinct transform with the relative deviation of the SRRs centre from the wire centre δ, from a single left-handed peak, double left-handed peaks with different magnitude to no transmission peak, i.e. left-handed properties of metamaterials disappear. Numerical simulation shows that the change of δ makes the effective permeability shift at a frequency range, where stopband occurs. It is thought that the stopband in left-handed passband is due to the symmetry breaking between SRRs and wires in the metamaterials.

  17. Cervical origin of left subclavian artery: A rare anomaly

    Directory of Open Access Journals (Sweden)

    Ponnusamy Shunmuga Sundaram

    2014-01-01

    Full Text Available A 22-year-old lady was referred to our institute for the management of pulmonary atresia with hypoplastic pulmonary arteries. Computed tomographic Angiography (CTA showed right aortic arch with left brachicephalic artery as the first branch, which trifurcated into internal carotid, external carotid and subclavian artery high up in the neck at the level of third cervical vertebra. The left subclavian artery then travelled back caudally and entered into the arm after giving rise to a large collateral artery. This is the first ever-reported case of cervical origin of left subclavian artery (COLSA in the literature. This anomaly can be explained by the absence of left fourth aortic arch with left subclavian artery arising from the left third aortic arch.

  18. Cardiovascular syphilis complicated by Lower thoracic and upper abdominal aneurysm – A rare case report

    Directory of Open Access Journals (Sweden)

    K Gayathri

    2016-01-01

    Full Text Available A 50-year-old male presented with left lower abdominal pain, visible pulsation below xiphoid process, and tenderness in the left iliac fossa for the past 10 days. Chest X-ray revealed blunting of left cardiophrenic angle. Echocardiogram revealed descending thoracic aortic pseudoaneurysm. Contrast-enhanced computed tomography of the chest and abdomen revealed dissecting aneurysm of lower thoracic and upper abdominal aorta. Thoracoabdominal aortogram revealed erosion of D12 vertebra and infected aneurysm of adjacent thoracoabdominal aorta. Serum venereal disease research laboratory assay was positive in 1:4 dilution Treponema pallidum hemagglutination assay was positive. The patient was treated with Injection procaine penicillin for 20 days undercover of steroids. Cerebrospinal fluid analysis was normal. Aortic aneurysm repair with reconstruction was done. Histopathology was in favor of syphilitic etiology. This case is being presented as descending thoracic and upper abdominal aortic aneurysm due to syphilis complicated by dissection and erosion of vertebral body is rare and has not been reported nowadays to the best of our knowledge.

  19. Crab scars reveal survival advantage of left-handed snails

    OpenAIRE

    Dietl, Gregory P.; Hendricks, Jonathan R.

    2006-01-01

    Biological asymmetries are important elements of the structure and function of many living organisms. Using the Plio–Pleistocene fossil record of crab predation on morphologically similar pairs of right- and left-handed snail species, we show here for the first time, contrary to traditional wisdom, that rare left-handed coiling promotes survival from attacks by right-handed crabs. This frequency-dependent result influences the balance of selection processes that maintain left-handedness at th...

  20. [Vertigo induced by noise or pressure to the left ear].

    Science.gov (United States)

    Seidel, D U; Dülks, A; Remmert, S

    2011-06-01

    A 49-year-old male patient presented with recently acquired vertigo induced by noise or pressure to the left ear. With appropriate stimulation, oscillopsia with a rotatory component could be reproduced in videooculography. Cervical vestibular evoked myogenic potentials (VEMP) showed increased amplitudes and a lowered threshold on the left side. CT of the petrous bone showed a bony dehiscence of the left superior semicircular canal. Conservative therapy was initiated as a first step.

  1. Left-handed surgical instruments - a guide for cardiac surgeons.

    Science.gov (United States)

    Burdett, Clare; Theakston, Maureen; Dunning, Joel; Goodwin, Andrew; Kendall, Simon William Henry

    2016-08-19

    For ease of use and to aid precision, left-handed instruments are invaluable to the left-handed surgeon. Although they exist, they are not available in many surgical centres. As a result, most operating theatre staff (including many left-handers) have little knowledge of their value or even application. With specific reference to cardiac surgery, this article addresses the ways in which they differ, why they are needed and what is required - with tips on use.

  2. Anatomical variation of the origin of the left vertebral artery

    OpenAIRE

    Patasi B; Yeung A; Goodwin S; Jalali A

    2009-01-01

    This paper presents and describes the anatomical variation of the left vertebral artery originating from the arch of aorta as a case report. This variation was found in one of the cadavers at the Division of Clinical and Functional Anatomy, Faculty of Medicine, University of Ottawa. During routine dissection of a male cadaver, in the superior mediastinum and the neck we observed an atypical origin of the left vertebral artery. Atypical origin was compared to the typical origin of the left ver...

  3. On left (θ,ϕ-derivations in BCI-algebras

    Directory of Open Access Journals (Sweden)

    G. Muhiuddin

    2014-07-01

    Full Text Available The notion of (regular left (θ,ϕ-derivations of a BCI-algebra is introduced, some useful examples are discussed, and related properties are investigated. Conditions for a left (θ,ϕ-derivation to be regular are provided. The concepts of a d(θ,ϕ-invariant left (θ,ϕ-derivation and θ-ideal are introduced, and their relations are discussed. Furthermore, some more interesting results are established.

  4. MR urography versus retrograde pyelography/ureteroscopy for the exclusion of upper urinary tract malignancy

    Energy Technology Data Exchange (ETDEWEB)

    Lee, K.S., E-mail: kslee@bidmc.harvard.ed [Department of Radiology, Beth Israel Deaconess Medical Center, Boston, MA (United States); Zeikus, E. [Department of Radiology, Beth Israel Deaconess Medical Center, Boston, MA (United States); DeWolf, W.C. [Department of Surgery, Division of Urology, Beth Israel Deaconess Medical Center, Boston, MA (United States); Rofsky, N.M.; Pedrosa, I. [Department of Radiology, Beth Israel Deaconess Medical Center, Boston, MA (United States)

    2010-03-15

    Aim: To evaluate the diagnostic performance of magnetic resonance urography (MRU) versus retrograde pyelography and/or ureteroscopy (RPU) in the detection of upper urinary tract neoplasms. Materials and methods: This retrospective study included 35 patients with suspected upper urinary tract malignancy who underwent MRU and RPU within 6-months in our institution during the study period (February 2002 to January 2007). MRU and RPU reports were reviewed and results recorded. For each patient, the urinary tract was sub-divided into four regions for analysis: left kidney/renal pelvis, left ureter, right kidney/renal pelvis, and right ureter. MRU and RPU results for each patient were compared to a reference standard and the diagnostic performance of both techniques was compared. Results: A total of 113 regions were analysed on MRU and 90 regions on RPU. Nineteen neoplasms were identified. Sensitivity, specificity, positive predictive value, and negative predictive value for the detection of urinary tract neoplasms were 63, 91, 60, and 92% for MRU, respectively, and 53, 97, 83, and 88% for RPU, respectively. These differences were not statistically significant (p > 0.05). Conclusion: The high negative predictive value of MRU in the present series supports its use as a non-invasive screening examination for excluding the presence of upper urinary tract malignancy.

  5. MR urography versus retrograde pyelography/ureteroscopy for the exclusion of upper urinary tract malignancy.

    Science.gov (United States)

    Lee, K S; Zeikus, E; DeWolf, W C; Rofsky, N M; Pedrosa, I

    2010-03-01

    To evaluate the diagnostic performance of magnetic resonance urography (MRU) versus retrograde pyelography and/or ureteroscopy (RPU) in the detection of upper urinary tract neoplasms. This retrospective study included 35 patients with suspected upper urinary tract malignancy who underwent MRU and RPU within 6-months in our institution during the study period (February 2002 to January 2007). MRU and RPU reports were reviewed and results recorded. For each patient, the urinary tract was sub-divided into four regions for analysis: left kidney/renal pelvis, left ureter, right kidney/renal pelvis, and right ureter. MRU and RPU results for each patient were compared to a reference standard and the diagnostic performance of both techniques was compared. A total of 113 regions were analysed on MRU and 90 regions on RPU. Nineteen neoplasms were identified. Sensitivity, specificity, positive predictive value, and negative predictive value for the detection of urinary tract neoplasms were 63, 91, 60, and 92% for MRU, respectively, and 53, 97, 83, and 88% for RPU, respectively. These differences were not statistically significant (p>0.05). The high negative predictive value of MRU in the present series supports its use as a non-invasive screening examination for excluding the presence of upper urinary tract malignancy. Copyright (c) 2010 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.

  6. Intravascular ultrasound for angiographically indeterminant left main coronary artery disease.

    Science.gov (United States)

    Parashara, D K; Jacobs, L E; Ledley, G S; Yazdanfar, S; Oline, J; Kotler, M N

    1994-01-01

    The precise diagnosis of the presence of significant left main coronary artery disease has profound prognostic and therapeutic implications. Coronary cineangiography has shown to be imprecise and inaccurate to determine the percent stenosis of the left main coronary artery. We report a case with significant left main coronary artery disease in whom coronary cineangiography was in discordance with the clinical data and intravascular ultrasonography. Based on the intravascular ultrasound findings, the patient underwent coronary artery bypass graft surgery. Therefore, the intravascular ultrasonography may be the procedure of choice for assessing indeterminant left main coronary artery lesions by coronary angiography.

  7. Symptomatic Type IV Dual Left Anterior Descending Coronary Artery

    Directory of Open Access Journals (Sweden)

    Kyriacos Papadopoulos MD

    2016-12-01

    Full Text Available Dual left anterior descending coronary artery is a rare congenital anomaly with 4 subtypes. Double left anterior descending coronary artery originating from the left main stem and the right coronary artery (type IV dual left anterior descending artery has been reported to occur in 0.01% to 0.7% of patients undergoing cardiac catheterization. We report a case of a 49-year-old woman who was found to have this anomaly during coronary angiography. The patient had been complaining of chest pain that mimics angina pectoris and exercise tolerance test was positive for myocardial ischemia.

  8. What’s on the left?

    Directory of Open Access Journals (Sweden)

    Paul Isambert

    2011-07-01

    Full Text Available Discourse structure is investigated from the point of view of topic shifts. The paper focuses on the French adverb autrement, an important tool in such operations. It requires an antecedent, the topic to be shifted, which it generally finds among salient elements such as topicalized noun phrases or frames. However, since there might be several such elements in the left context, other devices are used to ensure that interlocutors clearly understand which topic is being shifted, i.e. what the antecedent of autrement is. These devices are mostly: stating the new topic, which is similar in many respects (syntax, semantics to the previous one; the repetition of an overarching topic is also an important way to clarify discourse structure. In cases where such markers are absent, it is hypothesized that topics exist at least covertly. On the whole, discourse structure, and especially the left context, must be highly organized if autrement is to work properly. Thus, the study of autrement offers an interesting perspective on discourse structure as a whole, including the Right Frontier constraint: not only does autrement find its antecedent on the Right Frontier, it also shapes it by closing topics and modifying the availability of discourse referents.Cet article étudie la structure du discours du point de vue des changements de topiques, et plus précisément en se concentrant sur l’adverbe autrement et son rôle central dans une telle opération. Ce marqueur nécessite un antécédent, le topique qu’il ferme, qu’il trouve généralement parmi les éléments saillants du discours tels que les groupes nominaux topicalisés et les cadratifs. Cependant, comme il peut y avoir plusieurs éléments de cette sorte dans le contexte gauche, d’autres procédés sont aussi employés pour s’assurer que les interlocuteurs comprennent clairement quel topique est fermé, c’est-à-dire quel élément est l’antécédent d’autrement. Ces procédés sont

  9. Left ventricular biomechanics in professional football players.

    Science.gov (United States)

    von Lueder, T G; Hodt, A; Gjerdalen, G F; Steine, K

    2017-04-04

    Chronic exercise induces adaptive changes of left ventricular (LV) ejection and filling capacities which may be detected by novel speckle-tracking echocardiography (STE) and tissue Doppler imaging (TDI)-based techniques. A total of 103 consecutive male elite Norwegian soccer players and 46 age-matched healthy controls underwent echocardiography at rest. STE was used to assess LV torsional mechanics and LV systolic longitudinal strain (LS). Diastolic function was evaluated by trans-mitral blood flow, mitral annular velocities by TDI, and LV inflow propagation velocity by color M-mode. Despite similar global LS, players displayed lower basal wall and higher apical wall LS values vs controls, resulting in an incremental base-to-apex gradient of LS. Color M-mode and TDI-derived data were similar in both groups. Peak systolic twist rate (TWR) was significantly lower in players (86.4±2.8 vs controls 101.9±5.2 deg/s, Pplayers (-124.5±4.2 vs -106.9±6.7 deg/s) and peaked earlier during the cardiac cycle (112.7±0.8 vs 117.4±2.4% of systole duration, both Pplayers. Augmented diastolic wall strain (DWS), a novel measure of LV compliance in players, was associated with improved myocardial mechanical efficiency. The described myocardial biomechanics may underlie augmented exertional cardiac function in athletes and may have a potential role to characterize athlete's heart by itself or to distinguish it from hypertensive or hypertrophic cardiomyopathy. © 2017 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  10. Stenting for left main stenosis in a child with anomalous origin of left coronary artery: case report

    Institute of Scientific and Technical Information of China (English)

    CHEN Ming; HONG Tao; HUO Yong

    2005-01-01

    @@ Anomalous left coronary artery (LCA) arising from right cusp is an uncommon condition. Clinical evidence has shown that this coronary anomaly is consistently related to sudden death. Current treatment options include modification of behaviour, medicine or surgery. Stents have been successfully applied for left main stenosis for a decade. We report a case of LCA arising from right cusp with left main stenosis treated with coronary stent in a child patient.

  11. Delaware River and Upper Bay Sediment Data

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The area of coverage consists of 192 square miles of benthic habitat mapped from 2005 to 2007 in the Delaware River and Upper Delaware Bay. The bottom sediment map...

  12. Dirichlet Problem on the Upper Half Space

    Indian Academy of Sciences (India)

    Dewu Yang; Yudong Ren

    2014-05-01

    In this paper, a solution of the Dirichlet problem on the upper half space for a fast growing continuous boundary function is constructed by the generalized Dirichlet integral with this boundary function.

  13. Saline Nasal Irrigation for Upper Respiratory Conditions

    Science.gov (United States)

    2009-01-01

    Acute and chronic upper respiratory conditions are common and expensive disorders with enormous impact on patient quality of life and society at large. Saline nasal irrigation (SNI), a therapy with roots in Ayurvedic medicine that bathes the nasal mucosa with in spray or liquid saline, has been used as adjunctive care for upper respiratory conditions. In liquid form, SNI has been found to be effective adjunctive care by the Cochrane Collaboration for symptoms associated with chronic rhinosinusitis. Less conclusive clinical trial evidence supports its use in spray and liquid forms as adjunctive treatment for mild-to-moderate allergic rhinitis and acute upper respiratory infections. Consensus or expert opinion recommendations exist for SNI as a treatment for a variety of other conditions including rhinitis of pregnancy. SNI appears safe; side effects are minimal and transient. It can be recommended by clinicians to interested patients with a range of upper respiratory conditions in the context of patient education and printed instructional handouts. PMID:19904896

  14. Upper limb prosthetic use in Slovenia.

    Science.gov (United States)

    Burger, H; Marincek, C

    1994-04-01

    The article deals with the use of different types of upper limb prostheses in Slovenia. Four hundred and fourteen upper limb amputees were sent a questionnaire on the type of their prosthesis, its use and reasons for non-use, respectively. The replies were subject to statistical analysis. Most of the questioned upper limb amputees (70%) wear a prosthesis only for cosmesis. The use of a prosthesis depends on the level of upper limb amputation, loss of the dominant hand, and time from amputation. Prosthetic success appears to be unrelated to age at the time of amputation and the rehabilitation programme. The most frequent reason for not wearing a prosthesis is heat and consequent sweating of the stump. More than a third of amputees are dissatisfied with their prostheses.

  15. Unusual foreign bodies of upper gastrointestinal tract.

    Science.gov (United States)

    Nijhawan, S; Rai, R R; Agarwal, S; Vijayvergiya, R

    1995-01-01

    We report management of unusual foreign bodies of upper gastrointestinal tract, namely beer bottle cap, raisins and pistachu, mango peel, betelnut and plum seed at a university hospital in Northern India.

  16. Congenital microgastria and hypoplastic upper limb anomalies.

    Science.gov (United States)

    Lueder, G T; Fitz-James, A; Dowton, S B

    1989-03-01

    Six cases of congenital microgastria associated with limb anomalies are reviewed. The microgastria-hypoplastic upper limb association may arise as a result of aberrant mesodermal development in the 5th embryonic week.

  17. An approach to the painful upper limb

    African Journals Online (AJOL)

    to the shoulder, arm or hand, suggesting ... hand up towards the upper arm, suggesting .... typically includes the tips of the thumb, index and middle fingers, .... pathophysiology of overuse tendon injuries: Ideas on insertional tendinopathy.

  18. Massive upper gastrointestinal bleed from epiphrenic diverticulum.

    Science.gov (United States)

    Garcia, Cesar J; Dias, Ajoy; Hejazi, Reza A; Burgos, Jose D; Huerta, Ana; Zuckerman, Marc J

    2011-05-01

    Epiphrenic diverticula are outpouchings of the esophagus that retain some or all layers of the esophageal wall. Symptoms such as intermittent dysphagia and vomiting may occur. The authors present a case of an elderly woman with a history of dysphagia who presented with a massive upper gastrointestinal bleed because of a bleeding epiphrenic diverticulum seen at endoscopy who responded to conservative management. Bleeding epiphrenic diverticula should be considered as a cause of upper gastrointestinal bleeding.

  19. Inertial Upper Stage Thermal Test Program

    Science.gov (United States)

    1989-04-12

    REPORT SD-TR-89-26 Inertial Upper Stage Thermal Test Program D. J. SPENCER and H. A. BIXLER Aerophysics Laboratory Laboratory Operations The...TITLE (Include Security Classification) Inertial Upper Stage Thermal Test Program 12. PERSONAL AUTHOR(S) Spencer, Donald J., and Bixler, Henry A. 13a...by the laboratory thermal test program under consideration here. Details of the IUS launch vehicle characteristics and corrective action taken in

  20. Upper Bounds for the Laplacian Graph Eigenvalues

    Institute of Scientific and Technical Information of China (English)

    Jiong Sheng LI; Yong Liang PAN

    2004-01-01

    We first apply non-negative matrix theory to the matrix K = D + A, where D and A are the degree-diagonal and adjacency matrices of a graph G, respectively, to establish a relation on the largest Laplacian eigenvalue λ1 (G) of G and the spectral radius ρ(K) of K. And then by using this relation we present two upper bounds for λ1 (G) and determine the extremal graphs which achieve the upper bounds.

  1. Gingival hyperplasia by upper airway obstruction

    OpenAIRE

    Díaz Soriano, Ana; Docente Departamento Académico de Estomatología Biosocial.; Lévano Torres, Víctor; Docente Departamento Académico Médico Quirúrgico.; Pastor Yataco, Shamila; Alumnos del 3er año de Odontología de la UNMSM.; Vallejos Pulido, Arturo; Alumnos del 3er año de Odontología de la UNMSM.; Huamanyauri Gonzales, Lizbeth; Alumnos del 3er año de Odontología de la UNMSM.

    2014-01-01

    The effects of mouth breathing are the introduction of cold air, dry and dusty in the mouth and pharynx, the lost functions of heating, humedificacion and filtering the air entering the nose increases the oral mucosa irritation and pharyngeal. A case of a female patient 15 years old who comes for consultation of Periodontology with increase in volume and gingival redness in the upper anterior sector of upper airway obstruction caused by deviated septum right turbinate hypertrophy and maxillar...

  2. Upper quantum Lyapunov exponent and parametric oscillators

    Science.gov (United States)

    Jauslin, H. R.; Sapin, O.; Guérin, S.; Wreszinski, W. F.

    2004-11-01

    We introduce a definition of upper Lyapunov exponent for quantum systems in the Heisenberg representation, and apply it to parametric quantum oscillators. We provide a simple proof that the upper quantum Lyapunov exponent ranges from zero to a positive value, as the parameters range from the classical system's region of stability to the instability region. It is also proved that in the instability region the parametric quantum oscillator satisfies the discrete quantum Anosov relations defined by Emch, Narnhofer, Sewell, and Thirring.

  3. Updating upper extremity temporary prosthesis: thermoplastics.

    Science.gov (United States)

    Fletchall, S; Tran, T; Ungaro, V; Hickerson, W

    1992-01-01

    Since 1989 amputees with upper-extremity burns have been fitted with a temporary prosthesis fabricated from low-temperature thermoplastic. Before 1989 conventional temporary prostheses were fabricated with plaster. The use of the thermoplastic material has produced a lightweight, cost-effective, modular system. No patients exhibited skin breakdown with the thermoplastic material. It appears that thermoplastics may be the next major breakthrough in terms of a design for a temporary upper-extremity prosthesis.

  4. Lower and Upper Fuzzy Topological Subhypergroups

    Institute of Scientific and Technical Information of China (English)

    Irina CRISTEA; Jian Ming ZHAN

    2013-01-01

    This paper provides a new connection between algebraic hyperstructures and fuzzy sets.More specifically,using both properties of fuzzy topological spaces and those of fuzzy subhypergroups,we define the notions of lower (upper) fuzzy topological subhypergroups of a hypergroup endowed with a fuzzy topology.Some results concerning the image and the inverse image of a lower (upper) topological subhypergroup under a very good homomorphism of hypergroups (endowed with fuzzy topologies) are pointed out.

  5. Osteopathic treatment in a patient with left-ventricular assist device with left brachialgia: a case report

    Science.gov (United States)

    Bordoni, Bruno; Marelli, Fabiola; Morabito, Bruno; Sacconi, Beatrice

    2017-01-01

    This study deals with an osteopathic approach used for a patient with left-ventricular assist device (L-VAD) affected by left brachialgia. Clinical examination revealed the presence of thoracic outlet syndrome and pectoralis minor syndrome, with compression of the left proximal ulnar nerve, related to the surgical sternotomy performed. The osteopathic techniques used can be classified as indirect and direct, addressed to the pectoralis minor and the first left rib, respectively. To our knowledge, this is the first text in literature with an osteopathic treatment in a patient with L-VAD. PMID:28144166

  6. Bronchial compression by an enlarged left atrium in infants; a cause of hypovascularity of the left lung

    Energy Technology Data Exchange (ETDEWEB)

    Corr, L.; Hallidie-Smith, K.A.; McCarthy, P.A.; Lavender, J.P.

    1988-09-01

    In three infants seen recently at our institution we noted signs of compression of the left main bronchus associated with enlarged left atria. None of our cases demonstrated the more usual signs of hyperinflation which are a hyperlucent lung field, depressed hemidiaphragm and mediastinal shift away from the affected side. In addition, hypoperfusion of the left lung was noted in each case. We believe that bronchial compression due to an enlarged left atrium, with consequent hypoxic vasoconstriction is a clinically significant entity, which is not well described and may be unappreciated in infants in whom the typical signs of hyperinflation are absent.

  7. Nipro extra-corporeal left ventricular assist device fitting after left ventricular reconstruction with mitral valve plasty.

    Science.gov (United States)

    Arakawa, Mamoru; Yamaguchi, Atsushi; Nishimura, Takashi; Itoh, Satoshi; Yuri, Koichi; Kyo, Shunei; Adachi, Hideo

    2015-12-01

    Both left ventricular assist device and left ventricular reconstruction are treatment choices for severe heart failure conditions. Our institution performed a left ventricular assist device installation following a left ventricular reconstruction procedure on a 42-year-old male patient who presented with dilated cardiomyopathy and low cardiac output syndrome. A mitral valve plasty was used to correct the acute mitral valve regurgitation and we performed a Nipro extra-corporeal left ventricular assist device installation on post-operative day 14. Due to the left ventricular reconstruction that the patient had in a previous operation, we needed to attach an apical cuff on posterior apex, insert the inflow cannula with a large curve, and shift the skin insertion site laterally to the left. We assessed the angle between the cardiac longitudinal axis and the inflow cannula using computed tomography. The patient did not complain of any subjective symptoms of heart failure. Although Nipro extra-corporeal left ventricular assist device installation after left ventricular reconstruction has several difficulties historically, we have experienced a successful case.

  8. 'Sorry, I meant the patient's left side': impact of distraction on left-right discrimination.

    Science.gov (United States)

    McKinley, John; Dempster, Martin; Gormley, Gerard J

    2015-04-01

    Medical students can have difficulty in distinguishing left from right. Many infamous medical errors have occurred when a procedure has been performed on the wrong side, such as in the removal of the wrong kidney. Clinicians encounter many distractions during their work. There is limited information on how these affect performance. Using a neuropsychological paradigm, we aim to elucidate the impacts of different types of distraction on left-right (LR) discrimination ability. Medical students were recruited to a study with four arms: (i) control arm (no distraction); (ii) auditory distraction arm (continuous ambient ward noise); (iii) cognitive distraction arm (interruptions with clinical cognitive tasks), and (iv) auditory and cognitive distraction arm. Participants' LR discrimination ability was measured using the validated Bergen Left-Right Discrimination Test (BLRDT). Multivariate analysis of variance was used to analyse the impacts of the different forms of distraction on participants' performance on the BLRDT. Additional analyses looked at effects of demographics on performance and correlated participants' self-perceived LR discrimination ability and their actual performance. A total of 234 students were recruited. Cognitive distraction had a greater negative impact on BLRDT performance than auditory distraction. Combined auditory and cognitive distraction had a negative impact on performance, but only in the most difficult LR task was this negative impact found to be significantly greater than that of cognitive distraction alone. There was a significant medium-sized correlation between perceived LR discrimination ability and actual overall BLRDT performance. Distraction has a significant impact on performance and multifaceted approaches are required to reduce LR errors. Educationally, greater emphasis on the linking of theory and clinical application is required to support patient safety and human factor training in medical school curricula. Distraction has

  9. Left atrial strain: a new parameter for assessment of left ventricular filling pressure.

    Science.gov (United States)

    Cameli, Matteo; Mandoli, Giulia Elena; Loiacono, Ferdinando; Dini, Frank Lloyd; Henein, Michael; Mondillo, Sergio

    2016-01-01

    In order to obtain accurate diagnosis, treatment and prognostication in many cardiac conditions, there is a need for assessment of left ventricular (LV) filling pressure. While systole depends on ejection function of LV, diastole and its disturbances influence filling function and pressures. The commonest condition that represents the latter is heart failure with preserved ejection fraction in which LV ejection is maintained, but diastole is disturbed and hence filling pressures are raised. Significant diastolic dysfunction results in raised LV end-diastolic pressure, mean left atrial (LA) pressure and pulmonary capillary wedge pressure, all referred to as LV filling pressures. Left and right heart catheterization has traditionally been used as the gold standard investigation for assessing these pressures. More recently, Doppler echocardiography has taken over such application because of its noninvasive nature and for being patient friendly. A number of indices are used to achieve accurate assessment of filling pressures including: LV pulsed-wave filling velocities (E/A ratio, E wave deceleration time), pulmonary venous flow (S wave and D wave), tissue Doppler imaging (E' wave and E/E' ratio) and LA volume index. LA longitudinal strain derived from speckle tracking echocardiography (STE) is also sensitive in estimating intracavitary pressures. It is angle-independent, thus overcomes Doppler limitations and provides highly reproducible measures of LA deformation. This review examines the application of various Doppler echocardiographic techniques in assessing LV filling pressures, in particular the emerging role of STE in assessing LA pressures in various conditions, e.g., HF, arterial hypertension and atrial fibrillation.

  10. Laparoscopic features and repair of a combined left Spigelian hernia and left Morgagni diaphragmatic hernia.

    Science.gov (United States)

    Chamary, S L; Chamary, V L

    2015-03-01

    Both Spigelian and Morgagni hernias cause serious morbidity so early diagnosis and timely treatment are necessary. These two types of hernia are more commonly found on the right side of patients. They are rare individually in adults and even rarer in combination. So far, an association between the two hernias has only been reported on the right. We describe the first case of a Spigelian hernia and a Morgagni hernia in a 62-year-old woman, both occurring on the left side. Our accompanying video describes several laparoscopic features that will help lead to early detection and diagnosis.

  11. clinical characteristics and outcome of patients with upper ...

    African Journals Online (AJOL)

    Upper gastrointestinal bleeding (UGIB) is a potentially fatal, time-critical ... WITH UPPER. GASTROINTESTINAL BLEEDING AT THE EMERGENCY DEPARTMENT OF A ..... Registry on Nonvariceal Upper Gastrointestinal. Bleeding and ...

  12. Why are some people left-handed? An evolutionary perspective.

    Science.gov (United States)

    Llaurens, V; Raymond, M; Faurie, C

    2009-04-12

    Since prehistoric times, left-handed individuals have been ubiquitous in human populations, exhibiting geographical frequency variations. Evolutionary explanations have been proposed for the persistence of the handedness polymorphism. Left-handedness could be favoured by negative frequency-dependent selection. Data have suggested that left-handedness, as the rare hand preference, could represent an important strategic advantage in fighting interactions. However, the fact that left-handedness occurs at a low frequency indicates that some evolutionary costs could be associated with left-handedness. Overall, the evolutionary dynamics of this polymorphism are not fully understood. Here, we review the abundant literature available regarding the possible mechanisms and consequences of left-handedness. We point out that hand preference is heritable, and report how hand preference is influenced by genetic, hormonal, developmental and cultural factors. We review the available information on potential fitness costs and benefits acting as selective forces on the proportion of left-handers. Thus, evolutionary perspectives on the persistence of this polymorphism in humans are gathered for the first time, highlighting the necessity for an assessment of fitness differences between right- and left-handers.

  13. Why are there (almost) no left-handers in China?

    Science.gov (United States)

    Kushner, Howard I

    2013-06-01

    Surveys of Chinese students since the 1980s report that less than 1% are left-handed. This is an extraordinarily low number given the generally accepted view that between 10 and 12% of humans are left-handed. Are there actually very few left-handers in China and, if so, why? A number of sometimes overlapping reasons have shaped Chinese attitudes toward left-handedness. Some of these reflect the transcendent human reactions to biological laterality. Others have been shaped by Chinese historical and cultural experience. What is true in China can be identified in other societies: attitudes and practices toward left-handers have been and continue to be shaped by over-determined forces, which at the same time transcend specific cultures, while they respond to historical and cultural pressures. Like the Chinese, many North and East African peoples attempt to 'cure' left-handedness by a combination of restraints and severe punishments. Religion has often reinforced these practices. In China, we can see how a combination of traditional values and practical considerations seems to have merged to reduce both the actual and reported prevalence of left-handedness. When we add in the population of India, and much of the remaining Islamic world, we can conclude that for two-thirds of the world's population, being born left-handed exposes one to discrimination and stigma.

  14. On Functional Inequalities Originating from Module Jordan Left Derivations

    Directory of Open Access Journals (Sweden)

    Kang Sheon-Young

    2008-01-01

    Full Text Available Abstract We first examine the generalized Hyers-Ulam stability of functional inequality associated with module Jordan left derivation (resp., module Jordan derivation. Secondly, we study the functional inequality with linear Jordan left derivation (resp., linear Jordan derivation mapping into the Jacobson radical.

  15. On Functional Inequalities Originating from Module Jordan Left Derivations

    OpenAIRE

    Kang Sheon-Young; Chang Ick-Soon; Kim Hark-Mahn

    2008-01-01

    Abstract We first examine the generalized Hyers-Ulam stability of functional inequality associated with module Jordan left derivation (resp., module Jordan derivation). Secondly, we study the functional inequality with linear Jordan left derivation (resp., linear Jordan derivation) mapping into the Jacobson radical.

  16. Cortical Reorganization of Language Functioning Following Perinatal Left MCA Stroke

    Science.gov (United States)

    Tillema, Jan-Mendelt; Byars, Anna W.; Jacola, Lisa M.; Schapiro, Mark B.; Schmithorst, Vince J.; Szaflarski, Jerzy P.; Holland, Scott K.

    2008-01-01

    Objective: Functional MRI was used to determine differences in patterns of cortical activation between children who suffered perinatal left middle cerebral artery (MCA) stroke and healthy children performing a silent verb generation task. Methods: Ten children with prior perinatal left MCA stroke (age 6-16 years) and ten healthy age matched…

  17. The organisational and ideological development of Green Left

    NARCIS (Netherlands)

    Lucardie, Anthonie; Voerman, Gerrit; Botella, Joan; Ramiro, Luis

    2003-01-01

    In 1991 the Communist Party of the Netherlands (CPN) dissolved itself into the new organisation GreenLeft, founded in 1990. Thus, GreenLeft may be considered the major ‘post-communist party’ in the Netherlands. Yet it is not the only one. A minority of former CPN-members established in 1992 the New

  18. Evaluation of left ventricular volumes measured by magnetic resonance imaging

    DEFF Research Database (Denmark)

    Møgelvang, J; Thomsen, C; Mehlsen, J

    1986-01-01

    Left ventricular end-diastolic and end-systolic volumes were determined in 17 patients with different levels of left ventricular function by magnetic resonance imaging (MRI). A 1.5 Tesla Magnet was used obtaining ECG triggered single and multiple slices. Calculated cardiac outputs were compared...

  19. The organisational and ideological development of Green Left

    NARCIS (Netherlands)

    Lucardie, Anthonie; Voerman, Gerrit; Botella, Joan; Ramiro, Luis

    2003-01-01

    In 1991 the Communist Party of the Netherlands (CPN) dissolved itself into the new organisation GreenLeft, founded in 1990. Thus, GreenLeft may be considered the major ‘post-communist party’ in the Netherlands. Yet it is not the only one. A minority of former CPN-members established in 1992 the New

  20. An exceptional cause of left lower quadrant abdominal pain

    Institute of Scientific and Technical Information of China (English)

    Bassam Abboud; Ronald Daher

    2009-01-01

    Acute appendicitis is an exceptional cause of left lower quadrant abdominal pain. Computed tomography scan is the key to its diagnosis and helps to establish its early treatment. We present a case of a 35-year-old male patient who presented acute appendicitis with redundant and loosely attached cecum which was diagnosed based on his left lower quadrant abdominal pain.