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Sample records for winifred bryan horner

  1. Horner syndrome: clinical perspectives

    Science.gov (United States)

    Kanagalingam, Sivashakthi; Miller, Neil R

    2015-01-01

    Horner syndrome consists of unilateral ptosis, an ipsilateral miotic but normally reactive pupil, and in some cases, ipsilateral facial anhidrosis, all resulting from damage to the ipsilateral oculosympathetic pathway. Herein, we review the clinical signs and symptoms that can aid in the diagnosis and localization of a Horner syndrome as well as the causes of the condition. We emphasize that pharmacologic testing can confirm its presence and direct further testing and management. PMID:28539793

  2. Unilateral straight hair and congenital horner syndrome.

    Science.gov (United States)

    Wang, Frederick M; Wertenbaker, Christian; Cho, Hyung; Marmor, Maury A; Ahn-Lee, Sandra S; Bernard, Bruno A

    2012-06-01

    Congenital Horner syndrome is a rare disorder that accounts for less than 5% of all cases of Horner syndrome. Like Horner syndrome in general, it consists primarily of ptosis, miosis, and anhidrosis. Congenital Horner syndrome may manifest some special features such as iris heterochromia since the sympathetic nervous system is an essential component for the development and maintenance of eye color. We present 3 cases of unilateral straight hair in association with congenital Horner syndrome in which the patients had straight hair ipsilateral to the Horner syndrome, whereas on the contralateral side, it was curly, and we discuss possible mechanisms for this phenomenon.

  3. Sulphur Extraction at Bryan Mound

    Energy Technology Data Exchange (ETDEWEB)

    Kirby, Carolyn L [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Lord, Anna C. Snider [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-08-01

    The Bryan Mound caprock was subjected to extens ive sulphur mining prior to the development of the Strategic Petroleum Reserve. Undoubtedl y, the mining has modified the caprock integrity. Cavern wells at Bryan Mound have been subject to a host of well integr ity concerns with many likely compromised by the cavernous capro ck, surrounding corrosive environment (H 2 SO 4 ), and associated elevated residual temperatures al l of which are a product of the mining activities. The intent of this study was to understand the sulphur mining process and how the mining has affected the stability of the caprock and how the compromised caprock has influenced the integrity of the cavern wells. After an extensiv e search to collect pert inent information through state agencies, literature sear ches, and the Sandia SPR librar y, a better understanding of the caprock can be inferred from the knowledge gaine d. Specifically, the discovery of the original ore reserve map goes a long way towards modeling caprock stability. In addition the gained knowledge of sulphur mining - subs idence, superheated corrosive wa ters, and caprock collapse - helps to better predict the post mi ning effects on wellbore integrity. This page intentionally left blank

  4. ORIGINAL ARTICLES Pharmacological testing in Horner's syndrome

    African Journals Online (AJOL)

    ORIGINAL ARTICLES. Thompson and Mensher1 described the topical use of cocaine to confirm the diagnosis of Horner's syndrome and hydroxyamphetamine to distinguish between pre- and postganglionic causative lesions. For almost 40 years, these drugs have been the mainstay of pharmacological testing in Horner's ...

  5. Does Horner's syndrome in infancy require investigation?

    Science.gov (United States)

    George, N; Gonzalez, G; Hoyt, C

    1998-01-01

    AIMS—To evaluate whether isolated Horner's syndrome presenting in the first year of life warrants investigation.
METHOD—Retrospective review of 23 children presenting with Horner's syndrome in the first year of life.
RESULTS—In 16 patients (70%) no cause was identified. Birth trauma was the most common identifiable cause (four patients). Twenty one children (91%) had urinary vanillylmandelic acid (VMA) measured and 13 patients (57%) underwent either computed tomography or magnetic resonance imaging of the chest and neck. These investigations revealed previously undisclosed pathology in only two—one ganglioneuroma of the left pulmonary apex and one cervical neuroblastoma. A further patient was known to have abdominal neuroblastoma before presenting with Horner's syndrome. There were no cases of Horner's syndrome occurring after cardiothoracic surgery. Long term follow up of the patients (mean 9.3 years) has not revealed further pathology.
CONCLUSIONS—Routine diagnostic imaging of isolated Horner's syndrome in infancy is unnecessary. Infants should be examined for cervical or abdominal masses and involvement of other cranial nerves. If the Horner's syndrome is truly isolated then urinary VMA levels and follow up in conjunction with a paediatrician should detect any cases associated with neuroblastoma. Further investigation is warranted if the Horner's syndrome is acquired or associated with other signs such as increasing heterochromia, a cervical mass, or cranial nerve palsies.

 Keywords: Horner's syndrome; neuroblastoma PMID:9536881

  6. Bryan's effect and anisotropic nonlinear damping

    Science.gov (United States)

    Joubert, Stephan V.; Shatalov, Michael Y.; Fay, Temple H.; Manzhirov, Alexander V.

    2018-03-01

    In 1890, G. H. Bryan discovered the following: "The vibration pattern of a revolving cylinder or bell revolves at a rate proportional to the inertial rotation rate of the cylinder or bell." We call this phenomenon Bryan's law or Bryan's effect. It is well known that any imperfections in a vibratory gyroscope (VG) affect Bryan's law and this affects the accuracy of the VG. Consequently, in this paper, we assume that all such imperfections are either minimised or eliminated by some known control method and that only damping is present within the VG. If the damping is isotropic (linear or nonlinear), then it has been recently demonstrated in this journal, using symbolic analysis, that Bryan's law remains invariant. However, it is known that linear anisotropic damping does affect Bryan's law. In this paper, we generalise Rayleigh's dissipation function so that anisotropic nonlinear damping may be introduced into the equations of motion. Using a mixture of numeric and symbolic analysis on the ODEs of motion of the VG, for anisotropic light nonlinear damping, we demonstrate (up to an approximate average), that Bryan's law is affected by any form of such damping, causing pattern drift, compromising the accuracy of the VG.

  7. Neuroimaging experience in pediatric Horner syndrome

    International Nuclear Information System (INIS)

    Kadom, Nadja; Rosman, N.P.; Jubouri, Shams; Trofimova, Anna; Egloff, Alexia M.; Zein, Wadih M.

    2015-01-01

    Horner syndrome in children is rare. The frequency and spectrum of malignancy as the cause of Horner syndrome in children remains unclear. Also unclear is whether the imaging work-up should include the entire oculo-sympathetic pathway or should be more targeted. In addition, the value of cross-sectional angiographic imaging in Horner syndrome is uncertain. To review imaging pathology in a cohort of children with Horner syndrome at a major academic pediatric medical center. We reviewed a 22-year period of CT and MR imaging studies in children with a clinical diagnosis of Horner syndrome referred for imaging. We found 38 patients who fulfilled study criteria of Horner syndrome and 6/38 had relevant imaging findings: 2/6 etiologies were neoplastic (congenital neuroblastoma and central astrocytoma), 1/6 had a vascular abnormality (hypoplastic carotid artery), 1/6 had maldevelopment (Chiari I malformation), and 2/6 had inflammatory/traumatic etiology (viral cervical lymphadenopathy, post jugular vein cannulation). There was a similar number of congenital and acquired pathologies. The malignancies were found at any level of the oculosympathetic pathway. There are treatable causes, including malignancies, in children presenting with Horner syndrome, which justify imaging work-up of the entire oculosympathetic pathway, unless the lesion level can be determined clinically. (orig.)

  8. Neuroimaging experience in pediatric Horner syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Kadom, Nadja [Boston University School of Medicine, Department of Radiology, Boston University Medical Center, Boston, MA (United States); Rosman, N.P. [Boston Medical Center, Division of Pediatric Neurology, Departments of Pediatrics and Neurology, Boston University School of Medicine, Boston, MA (United States); Jubouri, Shams; Trofimova, Anna; Egloff, Alexia M. [Children' s National Medical Center, Department of Radiology and Diagnostic Imaging, Washington, DC (United States); Zein, Wadih M. [National Eye Institute (NEI), Bethesda, MD (United States)

    2015-09-15

    Horner syndrome in children is rare. The frequency and spectrum of malignancy as the cause of Horner syndrome in children remains unclear. Also unclear is whether the imaging work-up should include the entire oculo-sympathetic pathway or should be more targeted. In addition, the value of cross-sectional angiographic imaging in Horner syndrome is uncertain. To review imaging pathology in a cohort of children with Horner syndrome at a major academic pediatric medical center. We reviewed a 22-year period of CT and MR imaging studies in children with a clinical diagnosis of Horner syndrome referred for imaging. We found 38 patients who fulfilled study criteria of Horner syndrome and 6/38 had relevant imaging findings: 2/6 etiologies were neoplastic (congenital neuroblastoma and central astrocytoma), 1/6 had a vascular abnormality (hypoplastic carotid artery), 1/6 had maldevelopment (Chiari I malformation), and 2/6 had inflammatory/traumatic etiology (viral cervical lymphadenopathy, post jugular vein cannulation). There was a similar number of congenital and acquired pathologies. The malignancies were found at any level of the oculosympathetic pathway. There are treatable causes, including malignancies, in children presenting with Horner syndrome, which justify imaging work-up of the entire oculosympathetic pathway, unless the lesion level can be determined clinically. (orig.)

  9. Second order Horner's syndrome in a cat.

    Science.gov (United States)

    De Risio, Luisa; Fraser McConnell, James

    2009-08-01

    This case report describes the clinical and magnetic resonance imaging (MRI) findings of a 3.5-year-old, male neutered, domestic shorthair cat with second order Horner's syndrome as the only clinical abnormality. The neuroanatomical pathway of the sympathetic innervation to the eye, differential diagnoses for Horner's syndrome in cats, and the interpretation of pharmacological testing are reviewed. The unusual MRI findings and the value of fat-suppressed MRI sequences are discussed.

  10. '½ vol. not relevant': The scrapbook of Winifred Penn-Gaskell

    Directory of Open Access Journals (Sweden)

    Caitlin Doherty

    2014-10-01

    Full Text Available The scrapbook of Winifred Penn-Gaskell – celebrated aerophilatelist and collector of aeronautica –reveals a great deal about its maker and the social and political context of early flight history in Britain. It is argued here that a ‘reading’ of the book as a non-textual object offers a predictive argument for the aesthetic and cultural representation of heavier-than-air craft and pilots in the years immediately prior to the First World War. By viewing each section of the scrapbook as parts of a contingent whole, the early-twentieth century interest in performative masculinity (physical culture and boxing becomes a part of the technological narrative of aviation development. In this paper I question the implications of branding an object such as this ‘irrelevant’ to the broader themes of the Penn-Gaskell collection, and offer some views of my own on how the notion of failure affects museological practices.

  11. Isolated Horner's syndrome caused by intraoral gunshot.

    Science.gov (United States)

    Toledano, R; Corres, J; Culebras, A; Riva, E; Masjuán, J

    2006-12-01

    A 45-year-old man developed Horner's syndrome after sustaining an intraoral gunshot in a suicide attempt. Examination did not show any major vascular injury or other neurological symptoms. Radiograph of the skull and helical computed tomography angiography of the brain and neck detected a bullet embedded in the interior of the left internal carotid artery (ICA) sheath. Surgical examination showed an intact left ICA. Horner's syndrome resulting from intraoral trauma rarely presents as an isolated sign and is generally associated with carotid injuries. It may herald a life-threatening artery injury and needs urgent investigation.

  12. Traumatic Facial Diplegia and Horner Syndrome: Case Report.

    Science.gov (United States)

    Roth, Jonathan; Toaff, Jacob S; Margalit, Nevo; Salame, Khalil

    2007-08-01

    Traumatic facial diplegia is an uncommon pathology, and is usually associated with bitemporal bone fractures. Traumatic Horner syndrome is mostly associated with carotid artery dissection. We present a case with traumatic facial diplegia and a unilateral Horner syndrome where the mechanisms of injury were unusual. The patient had developed his neurological deficits 9 days following trauma. We discuss the mechanisms of the facial palsy and Horner syndrome and the importance of their diagnosis.

  13. Black widow spider envenomation, a rare cause of Horner's syndrome.

    Science.gov (United States)

    Strowd, Roy E; Scott, Blake; Walker, Francis O

    2012-06-01

    Horner's syndrome involves a triad of eyelid ptosis, miosis, and facial anhidrosis that results from disruption of the oculosympathetic pathway. Acquired Horner's syndrome is associated with a variety of medical conditions including Pancoast tumor and carotid dissection. We report the unique case of a 47-year-old man presenting with Horner's syndrome 4 weeks after black widow spider envenomation. Workup did not reveal any alternative explanatory etiology. We hypothesize that late sequelae of black widow spider envenomation secondary to autonomic nerve injury or retrograde axonal transport after mechanical inoculation may have led to an acquired defect in the oculosympathetic pathway resulting in a Horner's syndrome. This case introduces a rare cause of Horner's syndrome and highlights the importance of environmental exposures in the evaluation of these patients. Copyright © 2012 Wilderness Medical Society. Published by Elsevier Inc. All rights reserved.

  14. Idiopathic Horner's syndrome in Collie dogs

    International Nuclear Information System (INIS)

    Herrera, H.D.; Suraniti, A.P.; Kojusner, N.F.

    1998-01-01

    Seven cases of idiopathic Horner's Syndrome in the Collie are described. Five males and two females presented with unilateral miosis, ptosis of the upper eyelid, enophthalmos and protrusion of the third eyelid. Thorough examination, pharmacological testing with phenylephrine, complete blood counts and radiography of the tympanic bullae and thorax were performed. The etiology was not identified in any of the cases. Clinical signs improved with pharmacologic testing within 20-40 min. In five dogs, total resolution of clinical signs was observed at 4 and 16 weeks after their initial appearance. Pharmacological testing suggested that the deficit could be at the preganglionic neuron

  15. [Iris heterochromia in acquired Horner's syndrome].

    Science.gov (United States)

    Beynat, J; Soichot, P; Bidot, S; Dugas, B; Creuzot-Garcher, C; Bron, A

    2007-09-01

    Horner's syndrome (HS) is related to an interruption of the oculosympathetic nerve pathway. The classic clinical findings associated with this condition are ptosis, miosis, and enophthalmos. Heterochromia is typically described in congenital HS, but it is an uncommon finding in acquired HS. We report a case of post-traumatic HS associated with heterochromia. A literature review indicates that this type of heterochromia may be related to a reduction in the number of iris melanocytes. This mechanism may be the same in the physiological iris color modifications in adulthood.

  16. Post-thyroidectomy iatrogenic Horner's syndrome with heterochromia.

    Science.gov (United States)

    Ulusoy, Mahmut Oğuz; Kıvanç, Sertaç Argun; Atakan, Mehmet; Mayalı, Hüseyin

    2016-03-01

    To present a case of iatrogenic Horner's syndrome seen together with the heterochromia in the post-thyroidectomy period. A 23-year-old female patient was admitted to our clinic with complaints of low vision in the eye and difference in eye color that developed over the past two years. In the left eye, myosis and minimal ptosis (∼1 mm) was detected, and the color of the iris was lighter than the right eye. The pre-diagnosis of left iatrogenic Horner's syndrome was finalized after 0.5% topical apraclonidine test. Heterochromia can be observed in iatrogenic Horner's syndrome.

  17. Erythema migrans associated with partial Horner's syndrome.

    Science.gov (United States)

    Verma, Isha; Agrawal, Abhinav

    2015-12-07

    Lyme disease is a tick-borne illness caused mainly by three species of spirochaete Borrelia--B. burgdorferi, B. afzelii and B. garinii. It has three stages of presentation--early localised, early-disseminated and late Lyme. Erythema migrans is the most common manifestation of Lyme disease, and is usually seen 7-14 days after the tick bite. Patients seldom remember the tick bite. Patients may often present with neurological manifestations indicating neuroborreliosis. These manifestations range from a simple nerve palsy to severe complications such as papilloedema, myelitis or meningitis. We present a case of a 37-year-old woman who presented with partial Horner's syndrome, which was associated with erythema migrans, and other signs of Lyme disease. 2015 BMJ Publishing Group Ltd.

  18. Autosomal dominant congenital Horner's syndrome in a Dutch family.

    Science.gov (United States)

    Hageman, G; Ippel, P F; te Nijenhuis, F C

    1992-01-01

    A Dutch family is reported with congenital Horner's syndrome in five cases spanning five generations, with symptoms of varying degree but mainly ptosis and meiosis. Heterochromia iridium, anhidrosis, and enophthalmos were not present. The site of the lesion may be in the region between Gasser's ganglion and the short vertical segment of the internal carotid artery near the siphon. There are only four previous reports showing autosomal dominant inheritance of congenital Horner's syndrome. Images PMID:1548493

  19. 2014 Strategic Petroleum Reserve Bryan Mound Well Integrity Grading Report.

    Energy Technology Data Exchange (ETDEWEB)

    Roberts, Barry L; Lord, David; Lord, Anna C. Snider; Bettin, Giorgia; Sobolik, Steven R.; Rudeen, David Keith; Eldredge, Lisa L. (FFPO); Wynn, Karen (FFPO); Checkai, Dean (FFPO); Osborne, Gerad (FFPO); Moore, Darryl (FFPO)

    2015-04-01

    This report summarizes the work performed in the prioritization of cavern access wells for remediation and monitoring at the Bryan Mound Strategic Petroleum Reserve site. The grading included consideration of all 47 wells at the Bryan Mound site, with each well receiving a separate grade for remediation and monitoring. Numerous factors affecting well integrity were incorporated into the grading including casing survey results, cavern pressure history, results from geomechanical simulations, and site geologic factors. The factors and grading framework used here are the same as those used in developing similar well remediation and monitoring priorities at the Big Hill Strategic Petroleum Reserve Site.

  20. Horner Syndrome Due to Intrathoracic Multinodular Goiter (Case Report

    Directory of Open Access Journals (Sweden)

    Selda Korkmaz

    2013-09-01

    Full Text Available Horner syndrome is characterized by miosis, ptosis, facial anhydrosis and enophtalmus and is caused by a lesion along the oculosymphathetic pathway from the hypothalamus to the eye. The long course of the oculosympathetic pathway predisposes it to a wide variety of pathologic processes, ranging from harmless vascular headaches to life-threatening conditions such as carotid artery dissection or malignancy. Thyroid neoplasms, benign or malign, are among unusual causes of Horner syndrome and represent 1.3 - 7.8% of cases. Especially, early diagnosis of benign thyroid neoplasms such as multinodular goiter has particular importance because of its reversiblity with appropriate treatment. We report a case of Horner syndrome which has been developed as a complication of intrathoracic multinodular goiter

  1. Tanis Bryan: A Pioneer in the Field of Learning Disabilities

    Science.gov (United States)

    Curtis, Mary G.

    2016-01-01

    Dr. Tanis Bryan graduated from Northwestern University during the beginning of the field of learning disabilities. From this beginning, Tanis has provided invaluable insight into the field through her desire to understand the social dimensions of learning disabilities. The author wishes to thank Tanis for her assistance with this interview.

  2. Horner's syndrome: an electron microscopic study of a human iris.

    Science.gov (United States)

    McCartney, A. C.; Riordan-Eva, P.; Howes, R. C.; Spalton, D. J.

    1992-01-01

    Electron microscopy was performed on the irides of a man with a history of a long standing Horner's syndrome which resulted in iris heterochromia. Comparison of his normal brown iris with the depigmented blue iris showed depletion of anterior border cells and absence of sympathetic nerve fibres. Stromal melanocyte numbers were also diminished but melanosome numbers within the residual cells were not significantly different. Postnatal maintenance of stromal and anterior border zone pigmentation, derived from the neural crest, would appear to be dependent on an intact sympathetic nerve supply in contrast to the iris pigment epithelium which remains normally unaffected in Horner's syndrome. Images PMID:1486079

  3. Post-thyroidectomy iatrogenic Horner's syndrome with heterochromia

    OpenAIRE

    Ulusoy, Mahmut O?uz; K?van?, Serta? Argun; Atakan, Mehmet; Mayal?, H?seyin

    2016-01-01

    Purpose: To present a case of iatrogenic Horner's syndrome seen together with the heterochromia in the post-thyroidectomy period. Methods: A 23-year-old female patient was admitted to our clinic with complaints of low vision in the eye and difference in eye color that developed over the past two years. In the left eye, myosis and minimal ptosis (∼1 mm) was detected, and the color of the iris was lighter than the right eye. Results: The pre-diagnosis of left iatrogenic Horner's syndrome ...

  4. hoarseness and Horner's after supraclavicular brachial plexus block

    African Journals Online (AJOL)

    to compressive effects on the axillary fascial sheath. However, further studies are required to prove this. Keywords: combined incidence, Horner's syndrome, recurrent laryngeal nerve palsy, supraclavicular brachial plexus block. Introduction. Supraclavicular block is performed at the level of divisions of the brachial plexus.

  5. High thoracic ossification of ligamentum flavum causing partial Horner syndrome.

    Science.gov (United States)

    Kim, Dong Ha; Lee, Su Hun; Lee, Jun Seok; Song, Geun Sung; Son, Dong Wuk

    2018-02-28

    We report a case of high thoracic ossification of the ligamentum flavum (OLF) causing a partial Horner's syndrome. A 57-year-old man developed a walking disorder, as well as right-sided miosis and anhidrosis. Magnetic resonance imaging demonstrated a spinal cord compressing T2-T3 OLF. The patient improved after surgery.

  6. Pharmacological testing in Horner's syndrome – a new paradigm ...

    African Journals Online (AJOL)

    For more than three decades, topical cocaine has been used to confirm the diagnosis and hydroxyamphetamine to localise the causative lesion in oculosympathetic palsy or Horner's syndrome. More recently, other drugs have demonstrated the ability to point to the diagnosis or anatomical site. Apraclonidine and ...

  7. Rare Complications of Cervical Spine Surgery: Horner's Syndrome.

    Science.gov (United States)

    Traynelis, Vincent C; Malone, Hani R; Smith, Zachary A; Hsu, Wellington K; Kanter, Adam S; Qureshi, Sheeraz A; Cho, Samuel K; Baird, Evan O; Isaacs, Robert E; Rahman, Ra'Kerry K; Polevaya, Galina; Smith, Justin S; Shaffrey, Christopher; Tortolani, P Justin; Stroh, D Alex; Arnold, Paul M; Fehlings, Michael G; Mroz, Thomas E; Riew, K Daniel

    2017-04-01

    A multicenter retrospective case series. Horner's syndrome is a known complication of anterior cervical spinal surgery, but it is rarely encountered in clinical practice. To better understand the incidence, risks, and neurologic outcomes associated with Horner's syndrome, a multicenter study was performed to review a large collective experience with this rare complication. We conducted a retrospective multicenter case series study involving 21 high-volume surgical centers from the AOSpine North America Clinical Research Network. Medical records for 17 625 patients who received subaxial cervical spine surgery from 2005 to 2011 were reviewed to identify occurrence of 21 predefined treatment complications. Descriptive statistics were provided for baseline patient characteristics. Paired t test was used to analyze changes in clinical outcomes at follow-up compared to preoperative status. In total, 8887 patients who underwent anterior cervical spine surgery at the participating institutions were screened. Postoperative Horner's syndrome was identified in 5 (0.06%) patients. All patients experienced the complication following anterior cervical discectomy and fusion. The sympathetic trunk appeared to be more vulnerable when operating on midcervical levels (C5, C6), and most patients experienced at least a partial recovery without further treatment. This collective experience suggests that Horner's syndrome is an exceedingly rare complication following anterior cervical spine surgery. Injury to the sympathetic trunk may be limited by maintaining a midline surgical trajectory when possible, and performing careful dissection and retraction of the longus colli muscle when lateral exposure is necessary, especially at caudal cervical levels.

  8. Heterochromia iridis and Horner's syndrome due to paravertebral neurilemmoma.

    Science.gov (United States)

    Sayed, A K; Miller, B A; Lack, E E; Sallan, S E; Levey, R H

    1983-01-01

    A case of heterochromia iridis and Horner's syndrome is reported in a 7-year old girl with paravertebral neurilemmoma. These clinical findings can be useful in the early diagnosis of mediastinal tumors in the paravertebral axis. While typically associated with neuroblastoma, these findings can be due to tumors which are inately benign--in this case neurilemmoma. The mechanism for heterochromia is briefly discussed.

  9. Acquired heterochromia with horner syndrome in two adults.

    Science.gov (United States)

    Diesenhouse, M C; Palay, D A; Newman, N J; To, K; Albert, D M

    1992-12-01

    Heterochromia iridis, asymmetry of iris pigmentation, has been well described with congenital Horner syndrome. Acquired heterochromia associated with lesions in the ocular sympathetic pathways in adulthood, however, is rare. Two cases are reported in which sympathectomy in adults resulted in ipsilateral Horner syndrome with heterochromia. In each case, pharmacologic testing with cocaine and hydroxyamphetamine was performed. In both cases, sympathectomy occurred at the level of the second order neuron, but hydroxyamphetamine testing suggested at least partial third order neuron involvement. Acquired heterochromia can occur in adults. The partial response to hydroxyamphetamine in the two cases presented may reflect trans-synaptic degeneration of the postganglionic neuron. A reduction in trophic influences on iris melanocytes may have contributed to the observed heterochromia.

  10. Visual Hallucinations in a Patient with Horner's Syndrome Secondary to Internal Carotid Dissection

    DEFF Research Database (Denmark)

    Singh, Amardeep; Mortzos, Panteleimon; Sørensen, Torben Lykke

    2014-01-01

    A 67-year-old female presented with post-ganglionic Horner's syndrome. In addition to the classical symptoms of Horner's syndrome, the patient reported experiencing frightening complex visual and auditory hallucinations on two different occasions. Magnetic resonance angiography of the cerebrum...

  11. Winifred Rushforth and the Davidson Clinic for Medical Psychotherapy: a case study in the overlap of psychotherapy, Christianity and New Age spirituality.

    Science.gov (United States)

    Miller, Gavin

    2015-09-01

    The activities of both Winifred Rushforth (1885-1983), and the Edinburgh-based Davidson Clinic for Medical Psychotherapy (1941-73) which she directed, exemplify and elaborate the overlap in Scotland of religious discourses and practices with psychoanalytic psychotherapy. Even as post-war secularization began to affect Scottish culture and society, Rushforth and the Davidson Clinic attempted to renew the biographical discourses of Christianity using the idioms and practices of psychoanalytic psychotherapy. Furthermore, alongside these Christian-inflected activities, Rushforth promoted a psychoanalytically-informed New Age spirituality. This parallel mode of belief and practice drew on Christian life-narrative patterns, preserving them within psychoanalytic forms grafted onto a vitalist worldview informed by the work of Pierre Teilhard de Chardin. © The Author(s) 2015.

  12. Bryan Ferry nädala pärast kohal. Lindpriid 10. Noorkuu ja Birgit

    Index Scriptorium Estoniae

    2007-01-01

    Briti laulja Bryan Ferry kontserdist Euroopa turnee "Dylanesque European Tour" raames 2. nov. Tallinna linnahallis. Ansambli Lindpriid kontsetidest okt. ja nov. üle Eesti. Vokaalansambli Noorkuu ja Birgit Õigemeele kontsertidest alates 30. okt. Eesti erinevates kontserdipaikades

  13. John Dalton and the origin of the atomic theory: reassessing the influence of Bryan Higgins.

    Science.gov (United States)

    Grossman, Mark I

    2017-12-01

    During the years 1814-1819, William Higgins, an Irish chemist who worked at the Dublin Society, claimed he had anticipated John Dalton in developing the atomic theory and insinuated that Dalton was a plagiarist. This essay focuses not on William Higgins, but on his uncle Bryan Higgins, a well-known chemist of his day, who had developed his own theories of caloric and chemical combination, similar in many respects to that of Dalton. New evidence is first introduced addressing Bryan's disappearance from the scientific community after 1803. In his later years, Bryan apparently suffered from a condition resulting in a decline in his mental health, which explains why he never lodged any priority claims of his own against Dalton, or defended those of his nephew. Dalton's mention of Bryan's name in Part II of A New System of Chemical Philosophy, his laboratory notebook entries, and a fresh look at his correspondence with chemist Thomas Charles Hope indicate that Dalton adopted a Higgins-like caloric model in 1803. Together these factors provide evidence to support the argument that Dalton learned of Bryan's theories via a meeting he had with William Allen on 10 July 1803. Existing evidence related to the origin of the atomic theory is worthy of re-examination in light of Dalton's possible prior knowledge of Bryan's work.

  14. Bryan Mound SPR cavern 113 remedial leach stage 1 analysis.

    Energy Technology Data Exchange (ETDEWEB)

    Rudeen, David Keith; Weber, Paula D.; Lord, David L.

    2013-08-01

    The U.S. Strategic Petroleum Reserve implemented the first stage of a leach plan in 2011-2012 to expand storage volume in the existing Bryan Mound 113 cavern from a starting volume of 7.4 million barrels (MMB) to its design volume of 11.2 MMB. The first stage was terminated several months earlier than expected in August, 2012, as the upper section of the leach zone expanded outward more quickly than design. The oil-brine interface was then re-positioned with the intent to resume leaching in the second stage configuration. This report evaluates the as-built configuration of the cavern at the end of the first stage, and recommends changes to the second stage plan in order to accommodate for the variance between the first stage plan and the as-built cavern. SANSMIC leach code simulations are presented and compared with sonar surveys in order to aid in the analysis and offer projections of likely outcomes from the revised plan for the second stage leach.

  15. [Horner's syndrome and paresthesia in the trigeminal nerve territory secondary to epidural analgesia for labor].

    Science.gov (United States)

    Ferreira, Céline; Macedo, Ana Luísa; Almeida, Valentina

    2018-03-01

    Currently, epidural analgesia is a common procedure for labor analgesia. Although it is considered a safe technique, it is not without complications. Horner's syndrome and paresthesia within the trigeminal nerve distribution are rare complications of epidural analgesia. We report a case of a pregnant woman who developed Horner's syndrome and paresthesia within the distribution of the trigeminal nerve following epidural analgesia for the relief of labor pain. Copyright © 2018 Sociedade Brasileira de Anestesiologia. Publicado por Elsevier Editora Ltda. All rights reserved.

  16. Visual Hallucinations in a Patient with Horner's Syndrome Secondary to Internal Carotid Dissection

    OpenAIRE

    Amardeep Singh; Panteleimon Mortzos; Torben Lykke Sørensen

    2014-01-01

    A 67-year-old female presented with post-ganglionic Horner's syndrome. In addition to the classical symptoms of Horner's syndrome, the patient reported experiencing frightening complex visual and auditory hallucinations on two different occasions. Magnetic resonance angiography of the cerebrum, neck and upper thorax revealed internal carotid dissection. The symptoms and hallucinatory experiences resolved soon after antiplatelet therapy was commenced. We propose peduncular hallucinosis as the ...

  17. Analysis of cavern stability at the Bryan Mound SPR site.

    Energy Technology Data Exchange (ETDEWEB)

    Ehgartner, Brian L.; Sobolik, Steven Ronald

    2009-04-01

    This report presents computational analyses that simulate the structural response of caverns at the Strategic Petroleum Reserve Bryan Mound site. The cavern field comprises 20 caverns. Five caverns (1, 2, 4, and 5; 3 was later plugged and abandoned) were acquired from industry and have unusual shapes and a history dating back to 1946. The other 16 caverns (101-116) were leached according to SPR standards in the mid-1980s and have tall cylindrical shapes. The history of the caverns and their shapes are simulated in a 3-D geomechanics model of the site that predicts deformations, strains, and stresses. Future leaching scenarios due to oil drawdowns using fresh water are also simulated by increasing the volume of the caverns. Cavern pressures are varied in the model to capture operational practices in the field. The results of the finite element model are interpreted to provide information on the current and future status of subsidence, well integrity, and cavern stability. The most significant result in this report is relevant to caverns 1, 2, and 5. The caverns have non-cylindrical shapes and have potential regions where the surrounding salt may be damaged during workover procedures. During a workover the normal cavern operating pressure is lowered to service a well. At this point the wellhead pressures are atmospheric. When the workover is complete, the cavern is repressurized. The resulting elastic stresses are sufficient to cause tension and large deviatoric stresses at several locations. With time, these stresses relax to a compressive state due to salt creep. However, the potential for salt damage and fracturing exists. The analyses predict tensile stresses at locations with sharp-edges in the wall geometry, or in the case of cavern 5, in the neck region between the upper and lower lobes of the cavern. The effects do not appear to be large-scale, however, so the only major impact is the potential for stress-induced salt falls in cavern 5, potentially leading to

  18. [An adult case of congenital Horner's syndrome with heterochromia iridis--with special reference to alteration of Horner's sign associated with development].

    Science.gov (United States)

    Uyama, E; Maeda, J; Adachi, K; Yu, T C; Araki, S

    1989-10-01

    It is well known that when the Horner's syndrome is congenital, a defect in pigmentation of the iris is usual; all or part of the iris remains light brown. We reported an adult case of congenital Horner's syndrome with remission and relapse of unilateral ptosis. A 25-year-old man was admitted to our hospital for ophthalmologic surgical treatment of right ptosis. According to the patient's mother, the patient was delivered with the aid of forceps at birth, and the right ptosis was observed during the first few days of his life. At 2 to 3 years of age, his parents noted lighter color of the right eye. The right ptosis was gradually improved as he grew older. However, he developed right ptosis again with left meralgia paresthesia since eighteen age. At age 25 years, he was noted to have right ptosis, right miosis (the left pupil measured 4.5 mm in diameter and the right 3.0 mm), right heterochromia iridis with pigmented iris nevi, and left meralgia paresthesia . Laboratory data of urine, blood and CSF as well as radiological studies of chest X-ray, skull X-ray, spine X-ray, brain MRI and spinal cord MRI showed unremarkable. Sweating test was intact, pharmacologic test to Horner's syndrome with 5% cocaine and 1.25% 1-epinephrine indicated that the damage was pointed to the post ganglionic sympathetic neuron. Ten patients with congenital Horner's syndrome reported in Japan since 1953 were reviewed including our case. Ten of eleven were male and Horner's sign was recorded on the left eye in 8 cases.(ABSTRACT TRUNCATED AT 250 WORDS)

  19. Conversion of the Bryan Mound geological site characterization reports to a three-dimensional model.

    Energy Technology Data Exchange (ETDEWEB)

    Stein, Joshua S.; Rautman, Christopher Arthur

    2005-04-01

    The Bryan Mound salt dome, located near Freeport, Texas, is home to one of four underground crude oil-storage facilities managed by the U. S. Department of Energy Strategic Petroleum Reserve (SPR) Program. Sandia National Laboratories, as the geotechnical advisor to the SPR, conducts site-characterization investigations and other longer-term geotechnical and engineering studies in support of the program. This report describes the conversion of two-dimensional geologic interpretations of the Bryan Mound site into three-dimensional geologic models. The new models include the geometry of the salt dome, the surrounding sedimentary units, mapped faults, and the 20 oil-storage caverns at the site. This work provides an internally consistent geologic model of the Bryan Mound site that can be used in support of future work.

  20. A Case of Horner's Syndrome following Ultrasound-Guided Infraclavicular Brachial Plexus Block.

    Science.gov (United States)

    Walid, Trabelsi; Mondher, Belhaj Amor; Mohamed Anis, Lebbi; Mustapha, Ferjani

    2012-01-01

    Horner's syndrome results from paralysis of the ipsilateral sympathetic cervical chain (stellate ganglion) caused by surgery, drugs (mainly high concentrations of local anesthetics), local compression (hematoma or tumor), or inadequate perioperative positioning of the patient. It occurs in 100% of the patients with an interscalene block of the brachial plexus and can also occur in patients with other types of supraclavicular blocks.In this case report, we presented a case of Horner's syndrome after performing an ultrasound-guided infraclavicular brachial plexus block with 15 mL of bupivacaine 0.5%. It appeared 40 minutes after the block with specific triad (ptosis, miosis, and exophtalmia) and quickly disappears within 2 hours and a half without any sequelae. Horner's syndrome may be described as an unpleasant side effect because it has no clinical consequences in itself. For this reason anesthesiologists should be aware of this syndrome, and if it occurs patients should be reassured and monitored closely.

  1. Rhabdomyolysis resulting in concurrent Horner's syndrome and brachial plexopathy: a case report

    International Nuclear Information System (INIS)

    Lee, Susan C.; Geannette, Christian; Sneag, Darryl B.; Wolfe, Scott W.; Feinberg, Joseph H.

    2017-01-01

    This case report describes a 29-year-old male who presented with immediate onset of Horner's syndrome and ipsilateral brachial plexopathy after sleeping with his arm dangling outside a car window for 8 h. Outside workup and imaging revealed rhabdomyolysis of the left neck musculature. Subsequent electrodiagnostic testing and high-resolution brachial plexus magnetic resonance imaging at the authors' institution attributed the Horner's syndrome and concurrent brachial plexopathy to rhabdomyolysis of the longus colli and scalene musculature, which had compressed - and consequently scar tethered - the cervical sympathetic trunk and brachial plexus. This case of co-existent Horner's syndrome and brachial plexopathy demonstrates the role of high-resolution brachial plexus MRI in diagnosing plexopathy and the importance of being familiar with plexus and paravertebral muscle anatomy. (orig.)

  2. Rhabdomyolysis resulting in concurrent Horner's syndrome and brachial plexopathy: a case report

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Susan C.; Geannette, Christian; Sneag, Darryl B. [Hospital for Special Surgery, Department of Radiology and Imaging, New York, NY (United States); Wolfe, Scott W. [Hospital for Special Surgery, Hand and Upper Extremity, Department of Orthopedics, New York, NY (United States); Feinberg, Joseph H. [Hospital for Special Surgery, Physical Medicine and Rehabilitation, New York, NY (United States)

    2017-08-15

    This case report describes a 29-year-old male who presented with immediate onset of Horner's syndrome and ipsilateral brachial plexopathy after sleeping with his arm dangling outside a car window for 8 h. Outside workup and imaging revealed rhabdomyolysis of the left neck musculature. Subsequent electrodiagnostic testing and high-resolution brachial plexus magnetic resonance imaging at the authors' institution attributed the Horner's syndrome and concurrent brachial plexopathy to rhabdomyolysis of the longus colli and scalene musculature, which had compressed - and consequently scar tethered - the cervical sympathetic trunk and brachial plexus. This case of co-existent Horner's syndrome and brachial plexopathy demonstrates the role of high-resolution brachial plexus MRI in diagnosing plexopathy and the importance of being familiar with plexus and paravertebral muscle anatomy. (orig.)

  3. Rhabdomyolysis resulting in concurrent Horner's syndrome and brachial plexopathy: a case report.

    Science.gov (United States)

    Lee, Susan C; Geannette, Christian; Wolfe, Scott W; Feinberg, Joseph H; Sneag, Darryl B

    2017-08-01

    This case report describes a 29-year-old male who presented with immediate onset of Horner's syndrome and ipsilateral brachial plexopathy after sleeping with his arm dangling outside a car window for 8 h. Outside workup and imaging revealed rhabdomyolysis of the left neck musculature. Subsequent electrodiagnostic testing and high-resolution brachial plexus magnetic resonance imaging at the authors' institution attributed the Horner's syndrome and concurrent brachial plexopathy to rhabdomyolysis of the longus colli and scalene musculature, which had compressed-and consequently scar tethered-the cervical sympathetic trunk and brachial plexus. This case of co-existent Horner's syndrome and brachial plexopathy demonstrates the role of high-resolution brachial plexus MRI in diagnosing plexopathy and the importance of being familiar with plexus and paravertebral muscle anatomy.

  4. Invited Commentary: Evaluation of Horner Syndrome in the MRI Era.

    Science.gov (United States)

    Kawasaki, Aki

    2018-03-01

    This Invited Commentary discusses the following article: BACKGROUND:: To identify the etiologies of adult Horner syndrome (HS) in the MRI era using a targeted evaluation approach and to assess the value and yield of targeted imaging. A retrospective chart review was performed of 200 adult outpatients with HS, confirmed with cocaine eyedrop testing. Patients were divided into subgroups based on the presence or absence of symptoms and those who did or did not receive additional testing with hydroxyamphetamine drops. Imaging was obtained based on pharmacologic localization and/or clinical evaluation. The etiology of HS and the yield of imaging were determined in all subgroups. Imaging showed causative lesions in 24 of 179 (12.84%) imaged patients with HS, and 13 (69.0%) were determined "idiopathic." Of the patients who underwent testing with hydroxyamphetamine drops (132 patients), 86 had a postganglionic localization with an imaging yield of 8.1%, and 46 had preganglionic cause with an imaging yield of 21.7%. Fifty-three patients (26.5%) never noticed ptosis/anisocoria before examination, and the imaging yield in this subgroup was 2.8%. Eighteen of the 200 patients (9.0%) had serious pathology, including carotid artery dissection, brain, or neck mass, and 6 of these (31.6%) had acute symptoms and/or pain. HS is most often idiopathic with serious pathology being relatively infrequent. When determining etiology, the absence of symptoms is not predictive of the pathology. However, acute onset of symptoms and/or pain are possible indicators for serious pathology. Localizing the lesion using hydroxyamphetamine drops whenever obtainable and available is still an efficient way to target imaging evaluation.

  5. Congenital horner syndrome with heterochromia iridis associated with ipsilateral internal carotid artery hypoplasia.

    Science.gov (United States)

    Deprez, Fabrice C; Coulier, Julie; Rommel, Denis; Boschi, Antonella

    2015-04-01

    Horner syndrome (HS), also known as Claude-Bernard-Horner syndrome or oculosympathetic palsy, comprises ipsilateral ptosis, miosis, and facial anhidrosis. We report herein the case of a 67-year-old man who presented with congenital HS associated with ipsilateral hypoplasia of the internal carotid artery (ICA), as revealed by heterochromia iridis and confirmed by computed tomography (CT). CT evaluation of the skull base is essential to establish this diagnosis and distinguish aplasia from agenesis/hypoplasia (by the absence or hypoplasia of the carotid canal) or from acquired ICA obstruction as demonstrated by angiographic CT.

  6. Horner's Syndrome Incidental to Medullary Thyroid Carcinoma Excision: Case Report and Brief Literature Review

    Science.gov (United States)

    Mastronikolis, Nicholas S.; Spiliopoulou, Sofia P.; Zolota, Vassiliki; Papadas, Theodoros A.

    2016-01-01

    Horner's syndrome is characterized by a combination of ipsilateral miosis, blepharoptosis, enophthalmos, facial anhidrosis, and iris heterochromia in existence of congenital lesions. The syndrome results from a disruption of the ipsilateral sympathetic innervation of the eye and ocular adnexa at different levels. Though rare, thyroid and neck surgery could be considered as possible causes of this clinical entity. We present a case of Horner's syndrome in a patient after total thyroidectomy and neck dissection for medullary thyroid cancer with neck nodal disease and attempt a brief review of the relevant literature. PMID:27200201

  7. Visual arts student Bryan Lawson creates award-winning crop circle design

    OpenAIRE

    Chadwick, Heather Riley

    2009-01-01

    Bryan Lawson of Rural Retreat, Va., a senior visual communication design/studio art student in Virginia Tech's School of Visual Arts, College of Architecture and Urban Studies, won third place in the international Red Bull Art of Can design competition.

  8. Síndrome de Horner após cirurgia estereotáxica para doença de Parkinson Horner syndrome after stereotactic Parkinson's surgery

    Directory of Open Access Journals (Sweden)

    Luiz A. Rogano

    2003-06-01

    Full Text Available Apresentamos estudo de dez pacientes com doença de Parkison, que foram submetidos a procedimentos ablativos estereotáxicos percutâneos e que desenvolveram síndrome de Horner ipsilateral imediatamente após a lesão. Sete pacientes foram submetidos a palidotomia, dois a subtalamotomia (campotomia de Forel e talamotomia e um paciente a subtalamotomia. Sete desenvolveram miose e os dez desenvolveram semiptose ipsilateral à lesão. A ocorrência da síndrome de Horner resulta possivelmente de lesão de fibras simpáticas entre o hipotálamo, campo de Forel e tálamo.We present ten patients with Parkinson's disease who underwent stereotactic ablative radiofrequency procedures. Seven patients underwent pallidotomy, two subthalamotomy and VIM, and one subthalamotomy. Seven developed miosis and all semiptosis ipsilateral immediately after the procedure. The occurrence of Horner's syndrome is probably due to the lesion of sympathetic fibers among hypothalamus, Forel's field and thalamus after the stereotactic procedure.

  9. Highly selective synthesis of (E)-alkenyl-(pentafluorosulfanyl)benzenes through Horner-Wadsworth-Emmons reaction

    Czech Academy of Sciences Publication Activity Database

    Iakobson, George; Beier, Petr

    2012-01-01

    Roč. 8, 25 Jul (2012), s. 1185-1190 ISSN 1860-5397 R&D Projects: GA ČR GAP207/12/0072 Institutional support: RVO:61388963 Keywords : Horner-Wadsworth-Emmons reaction * pentafluorosulfanyl group * phosphonates * sulfurpentafluoride Subject RIV: CC - Organic Chemistry Impact factor: 2.801, year: 2012

  10. Enantioconvergent synthesis by sequential asymmetric Horner-Wadsworth-Emmons and palladium-catalyzed allylic substitution reactions

    DEFF Research Database (Denmark)

    Pedersen, Torben Møller; Hansen, E. Louise; Kane, John

    2001-01-01

    A new method for enantioconvergent synthesis has been developed. The strategy relies on the combination of an asymmetric Horner-Wadsworth-Emmons (HWE) reaction and a palladium-catalyzed allylic substitution. Different $alpha@-oxygen-substituted, racemic aldehydes were initially transformed by asy...

  11. Trochlear Nerve Palsy Associated with Claude Bernard-Horner Syndrome after Brainstem Stroke

    Directory of Open Access Journals (Sweden)

    Rodrigo Bazan

    2011-10-01

    Full Text Available The association of unilateral trochlear nerve palsy with Claude Bernard-Horner syndrome represents a rare clinical condition. We present the case of a patient with this unusual presentation. The investigation performed implicated cerebrovascular disease as the underlying cause of the condition in this patient.

  12. A Quantum Chemical Exploration of the Horner-Wadsworth-Emmons Reaction

    DEFF Research Database (Denmark)

    Brandt, Peter; Norrby, Per-Ola; Martin, Ivar

    1998-01-01

    The mechanism of the Horner-Wadsworth-Emmons (HWE) reaction has been investigated using high level quantum mechanical calculations on a realistic model system. The solvation contribution has been evaluated using the PCM/DIR method. In the free, anionic system, the rate determining step was found...

  13. Bryan Mound InSAR Analysis U.S. Strategic petroleum Reserve.

    Energy Technology Data Exchange (ETDEWEB)

    Lord, Anna C. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2017-06-01

    The U.S. Strategic Petroleum Reserve (SPR) is a stockpile of emergency crude oil to be tapped into if a disruption in the nation's oil supply occurs. The SPR is comprised of four salt dome sites. Subsidence surveys have been conducted either annually or biennially at all four sites over the life of the program. Monitoring of surface behavior is a first line defense to detecting possible subsurface cavern integrity issues. Over the life of the Bryan Mound site, subsidence rates over abandoned Cavern 3 have continuously been the highest at the site. In an effort to try and understand the subsurface dynamics, specifically over Bryan Mound Cavern 3, historic interferometric synthetic aperture radar (InSAR) data was acquired and processed by TRE Altamira. InSAR involves the processing of multiple satellite synthetic aperture radar scenes acquired across the same location of the Earth's surface at different times to map surface deformation. The analysis of the data has the ability to detect millimeters of motion spanning days, months, year and decades, across specific sites. The intent in regards to the Bryan Mound site was (1) to confirm the higher subsidence rates recorded over abandoned Cavern 3 indicated by land survey and (2) understand the regional surface behavior. This report describes the InSAR analysis results, how those results compare to the historical collection of land survey data, and what additional information the data has provided towards understanding the response recorded at the surface.

  14. Sixth nerve palsy + ipsilateral Horner's Syndrome = Parkinson's Syndrome.

    Science.gov (United States)

    Ebner, Roberto N; Ayerza, Dolores Ribero; Aghetoni, Fernando

    2015-01-01

    To present five patients with VIth nerve palsy and ipsilateral Horner's Syndrome (HS), as a result of cavernous sinus alteration. Consecutive case series. Five patients presented abducens palsy with horizontal diplopia (3 in primary position and 2 in lateral gaze only) and ipsilateral HS. Apraclonidine 0.5% drops evidenced sympathetic denervation in all patients 40-60 min after instillation. All 5 cases had neuroimages (MRI in 3 cases, Computerized Tomography - CT in one case and Magnetic Resonance Angiography - MRA in one case) demonstrating cavernous sinus lesions; 2 meningiomas, 1 carotid-cavernous aneurism, 1 foreign body (bullet) and 1 squamous cell carcinoma. Lesions on the cavernous sinus need to be considered in cases of abducens nerve palsy and ipsilateral Horner's Syndrome.

  15. Adjacent Segment Degeneration Following Anterior Cervical Discectomy and Fusion Versus the Bryan Cervical Disc Arthroplasty.

    Science.gov (United States)

    Yan, Suo-Zhou; Di, Jun; Shen, Yong

    2017-06-02

    BACKGROUND Anterior cervical discectomy and fusion (ACDF) is an established treatment for degenerative disease of the cervical disc, but adjacent segment degeneration or instability may develop long term. The aim of this study was to investigate the risk factors for adjacent segment degeneration following ACDF compared with the use of the Bryan artificial disc for cervical disc arthroplasty (CDA). MATERIAL AND METHODS A prospective comparative study included 93 patients who underwent ACDF or CDA with the Bryan artificial cervical disc between 2002 and 2004, and who had more than eight years of follow-up. There were 29 cases in the CDA group and 39 cases in ACDF group, with a follow-up rate of 73.12%. Clinical results and imaging data were assessed before and after surgery. RESULTS There was no significant difference between the two groups in radiographic parameters at each follow-up time point. There were 19 cases of adjacent segment degeneration (48.72%) in the ACDF group, and 13 cases of adjacent segment degeneration (44.83%) in the CDA group, with no statistically significant difference (P>0.05). Univariate analysis showed that advanced age (OR 1.271, 95% CI 1.005-1.607), low preoperative overall lordosis (OR 0.858, 95% CI 0.786-0.936) and low preoperative segmental lordosis (OR 1.185, 95% CI 1.086-1.193) were significantly correlated with adjacent segment degeneration. CONCLUSIONS Equally good clinical outcomes were achieved with both the ACDF and the Bryan CDA. Increasing patient age was associated with adjacent segment degeneration in both patient groups.

  16. 10-year follow-up after implantation of the Bryan Cervical Disc Prosthesis.

    Science.gov (United States)

    Dejaegher, Joost; Walraevens, Joris; van Loon, Johannes; Van Calenbergh, Frank; Demaerel, Philippe; Goffin, Jan

    2017-04-01

    Cervical arthroplasty is being used as an alternative for cervical fusion, but long-term follow-up results have rarely been reported. In this paper, we present 10-year follow-up results after implantation of the Bryan Cervical Disc Prosthesis in a single center. 89 patients underwent implantation of a single-level Bryan Cervical Disc Prosthesis to treat radiculopathy and/or myelopathy. Clinical (Neurological Success, Neck Disability Index (NDI), Neck- and Arm-Pain, and SF-36) and radiological follow-up was prospectively organized up to 10 years after surgery. Adverse events and second surgeries were recorded and evaluated. Ten-year follow-up data were available for 72 (81%) patients. Maintenance or improvement of the neurological state was seen in 89% of patients after 10-year follow-up. SF-36 PCS scores improved significantly at all follow-up points. SF-36 MCS improvement was significant at 4 and 6 year, but not at 8- and 10-year follow-up. Significant improvement for NDI, and Neck- and Arm-Pain scores was found for the subgroup of patients in whom these data were available. Mean angular motion of the prosthesis at 10-year follow-up was 8.6°. Mobility of the device, defined as >2° of angular motion, was reached in 81% of patients. During the study period, 21 patients (24%) developed new or recurrent radiculopathy or myelopathy, the majority of these being treated conservatively. Seven patients (8%) required 8 additional spine surgeries to treat persistent or recurrent symptoms. Of these, 2 patients (2%) were reoperated at the index level and at 5 (6%) an adjacent level. In this study, favorable long-term clinical outcome after implantation of the Bryan Cervical Disc Prosthesis was seen, with the majority of prostheses remaining mobile after 10-year follow-up. However, still 6% of patients required adjacent level surgery.

  17. Adjacent Segment Degeneration Following Anterior Cervical Discectomy and Fusion Versus the Bryan Cervical Disc Arthroplasty

    Science.gov (United States)

    Yan, Suo-Zhou; Di, Jun; Shen, Yong

    2017-01-01

    Background Anterior cervical discectomy and fusion (ACDF) is an established treatment for degenerative disease of the cervical disc, but adjacent segment degeneration or instability may develop long term. The aim of this study was to investigate the risk factors for adjacent segment degeneration following ACDF compared with the use of the Bryan artificial disc for cervical disc arthroplasty (CDA). Material/Methods A prospective comparative study included 93 patients who underwent ACDF or CDA with the Bryan artificial cervical disc between 2002 and 2004, and who had more than eight years of follow-up. There were 29 cases in the CDA group and 39 cases in ACDF group, with a follow-up rate of 73.12%. Clinical results and imaging data were assessed before and after surgery. Results There was no significant difference between the two groups in radiographic parameters at each follow-up time point. There were 19 cases of adjacent segment degeneration (48.72%) in the ACDF group, and 13 cases of adjacent segment degeneration (44.83%) in the CDA group, with no statistically significant difference (P>0.05). Univariate analysis showed that advanced age (OR 1.271, 95% CI 1.005–1.607), low preoperative overall lordosis (OR 0.858, 95% CI 0.786–0.936) and low preoperative segmental lordosis (OR 1.185, 95% CI 1.086–1.193) were significantly correlated with adjacent segment degeneration. Conclusions Equally good clinical outcomes were achieved with both the ACDF and the Bryan CDA. Increasing patient age was associated with adjacent segment degeneration in both patient groups. PMID:28574978

  18. Unusual Horner's syndrome in recurrent breast cancer: Evaluating using {sup 18}F-FDG PET/CT

    Energy Technology Data Exchange (ETDEWEB)

    Park, So Hyun; Kim, Tae Sung; Kim, Seok Ki [Dept. of Nuclear Medicine, National Cancer Center, Goyang (Korea, Republic of)

    2017-03-15

    {sup 18}F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) is a widely used imaging modality in the initial diagnosis of cancer, treatment response evaluation and detection of recurrence. Herein, we present the case of a 39-year-old female who presented right ptosis on the follow-up of breast cancer after surgery. Clinicians suspected Horner's syndrome, and the patient underwent FDG PET/CT for the evaluation of recurrence that could cause Horner's syndrome. FDG PET/CT demonstrated a focal hypermetabolic lesion in the right cervicothoracic junction area, corresponding to the preganglionic cervical sympathetic trunk. A subsequent needle biopsy was done, and the lesion was confirmed as metastatic ductal carcinoma. In this case, we could detect the exact location of the recurring lesion that caused Horner's syndrome using FDG PET/CT.

  19. A case of Ross syndrome presented with Horner and chronic cough

    Directory of Open Access Journals (Sweden)

    Aslihan Baran

    2014-01-01

    Full Text Available Ross syndrome is a rare sweating disorder associated with Adie′s tonic pupil, decreased or diminished tendon reflex and unknown etiology. Although autonomic disturbances affecting sudomotor and vasomotor functions are seen commonly, they are rarely symptomatic. While Ross syndrome is typically characterized with dilated tonic pupil, it may be rarely manifested with miotic pupils (little old Adie′s pupil, which can make diagnosis difficult. In this article, we aim to specify the atypical clinical manifestations of syndrome by means of Ross syndrome manifested by autonomic symptoms, Horner syndrome, chronic cough together with bilateral little old Adie′s pupil.

  20. Horner Syndrome associated with a Herniated Cervical Disc: A Case Report.

    Science.gov (United States)

    Ma, Hyunjin; Kim, Insoo

    2012-06-01

    Horner syndrome (HS) occurs when there is interruption of the oculosympathetic pathway. The causes of HS are various, but HS originated from herniated cervical disc is very few. HS attributable to the lesion of the first-order neuron of cervical spinal cord is extremely rare. A 41-year old male was admitted for sudden onset of left ptosis and right side numbness. Neurological examination revealed ptosis, miosis and facial anhidrosis on the left side. MRI and CT scans demonstrated large left paramedian disc herniation with cord compression at the C4-5 level. The herniated disc was removed through anterior approach and his symptoms were improved after the operation.

  1. Lewis Base Activation of Silyl Acetals: Iridium-Catalyzed Reductive Horner-Wadsworth-Emmons Olefination.

    Science.gov (United States)

    Dakarapu, Udaya Sree; Bokka, Apparao; Asgari, Parham; Trog, Gabriela; Hua, Yuanda; Nguyen, Hiep H; Rahman, Nawal; Jeon, Junha

    2015-12-04

    A Lewis base promoted deprotonative pronucleophile addition to silyl acetals has been developed and applied to the iridium-catalyzed reductive Horner-Wadsworth-Emmons (HWE) olefination of esters and the chemoselective reduction of the resulting enoates. Lewis base activation of silyl acetals generates putative pentacoordinate silicate acetals, which fragment into aldehydes, silanes, and alkoxides in situ. Subsequent deprotonative metalation of phosphonate esters followed by HWE with aldehydes furnishes enoates. This operationally convenient, mechanistically unique protocol converts the traditionally challenging aryl, alkenyl, and alkynyl esters to homologated enoates at room temperature within a single vessel.

  2. Strategic Petroleum Reserve (SPR) additional geologic site characterization studies, Bryan Mound Salt Dome, Texas

    Energy Technology Data Exchange (ETDEWEB)

    Neal, J.T. [Sandia National Labs., Albuquerque, NM (United States); Magorian, T.R.; Ahmad, S. [Acres International Corp., Amherst, NY (United States)

    1994-11-01

    This report revises the original report that was published in 1980. Some of the topics covered in the earlier report were provisional and it is now practicable to reexamine them using new or revised geotechnical data and that obtained from SPR cavern operations, which involves 16 new caverns. Revised structure maps and sections show interpretative differences as compared with the 1980 report and more definition in the dome shape and caprock structural contours, especially a major southeast-northwest trending anomalous zone. The original interpretation was of westward tilt of the dome, this revision shows a tilt to the southeast, consistent with other gravity and seismic data. This interpretation refines the evaluation of additional cavern space, by adding more salt buffer and allowing several more caverns. Additional storage space is constrained on this nearly full dome because of low-lying peripheral wetlands, but 60 MMBBL or more of additional volume could be gained in six or more new caverns. Subsidence values at Bryan Mound are among the lowest in the SPR system, averaging about 11 mm/yr (0.4 in/yr), but measurement and interpretation issues persist, as observed values are about the same as survey measurement accuracy. Periodic flooding is a continuing threat because of the coastal proximity and because peripheral portions of the site are at elevations less than 15 ft. This threat may increase slightly as future subsidence lowers the surface, but the amount is apt to be small. Caprock integrity may be affected by structural features, especially the faulting associated with anomalous zones. Injection wells have not been used extensively at Bryan Mound, but could be a practicable solution to future brine disposal needs. Environmental issues center on the areas of low elevation that are below 15 feet above mean sea level: the coastal proximity and lowland environment combined with the potential for flooding create conditions that require continuing surveillance.

  3. Synthesis of a [(14) C]-steroid intermediate: an application of a nonstabilized Horner-Wadsworth-Emmons olefination approach.

    Science.gov (United States)

    Rivera, Nelo R; Ren, Sumei; Hesk, David

    2015-01-01

    Radiolabeled steroid derivative 1 was successfully prepared using a Horner-Wadsworth-Emmons approach: a [(14) C]-label was efficiently incorporated into the C-18 position of the molecule. Previously published procedures employing other olefination methods are either not applicable due to unavailability of [(14) C]-precursors or suffer from poor reactivity. Copyright © 2015 John Wiley & Sons, Ltd.

  4. Asymmetry of salivary gland I123 Metaiodobenzylguanidine (MIBG) uptake in a patient with cervical neuroblastoma and Horner's syndrome - possible etiologic mechanisms

    International Nuclear Information System (INIS)

    Sandler, E.D.; Hattner, R.S.; Parisi, M.T.

    1992-01-01

    Horner's syndrome may be due to a variety of serious underlying disorders including cervical neuroblastoma. Horner's syndrome results from a unilateral disruption of the sympathetic innervation to the head and neck. We report a patient with cervical neuroblastoma in whom post operative metaiodobenzylguanidine (MIBG) scans showed a striking decrease in uptake in the ipselateral salivary glands. Since the biodistribution of I 123 metaiodobenzylguanidine in the salivary glands is also dependent on sympathetic innervation, the presence of Horner's syndrome can be reflected in the MIBG scan. (orig.)

  5. Horner Syndrome

    Science.gov (United States)

    ... order neurons This neuron pathway leads from the hypothalamus at the base of the brain, passes through ... nerve damage in this region may include: Lung cancer Tumor of the myelin sheath (schwannoma) Damage to ...

  6. Síndrome de Horner na infância: relato de caso

    Directory of Open Access Journals (Sweden)

    Shiratori Claudia Akemi

    2004-01-01

    Full Text Available O intuito deste é apresentar um caso raro de síndrome de Horner na infância. Trata-se de uma criança do sexo masculino, com idade de 2 anos e 1 mês, que apresentava desde o nascimento ptose palpebral, miose e anidrose da hemiface esquerda. A instilação de fenilefrina 2,5% provocou midríase, com pupilas isocóricas, confirmando o diagnóstico. A história e o exame clínico auxiliam a localizar o nível da lesão e a estabelecer a etiologia do quadro.

  7. [What would you do in front of a patient with a Horner syndrome?

    Science.gov (United States)

    Camós-Carreras, A; Fontana, S; Ortiz-Pérez, S

    2018-03-01

    Horner's syndrome (HS) occurs when there is disruption to the oculosympathetic pathway. Its features include eyelid ptosis, miosis and anhidrosis. The aetiology of this syndrome is varied and includes tumours, trauma, vascular disease and iatrogenic. Different pharmacologic tests are used for diagnosis, such as cocaine, hydroxyamphetamine and apraclonidine; while neuroimaging helps elucidating the aetiology. We present a case of a 63-year-old female referred to our service with a 4-month history of right eyelid ptosis. During examination right miosis was noted. The patient reported a history of multinodular goiter. Pharmacologic tests and neuroimaging confirmed the diagnosis of HS secondary to thyroid disease. Copyright © 2016 Sociedad Española de Médicos de Atención Primaria (SEMERGEN). Publicado por Elsevier España, S.L.U. All rights reserved.

  8. Impact of T1 slope on surgical and adjacent segment degeneration after Bryan cervical disc arthroplasty

    Directory of Open Access Journals (Sweden)

    Yang P

    2017-08-01

    Full Text Available Peng Yang,1 Yongqian Li,2,3 Jia Li,2,3,* Yong Shen2,3,* 1Department of Neurosurgery, Affiliated Hospital of North China University of Science and Technology, Tangshan, 2Department of Orthopedic Surgery, 3Key Laboratory of Orthopedic Biomechanics of Hebei Province, the Third Hospital of Hebei Medical University, Shijiazhuang, People’s Republic of China *These authors contributed equally to this work Background: This retrospective study investigated an association between preoperative T1 slope and surgical and adjacent segment degeneration (SASD after Bryan cervical disc arthroplasty (BCDA in patients with cervical degenerative disc disease.Methods: Based on preoperative standing lateral radiographs, 90 patients were classified according to T1 slope that was higher or lower than the 50th percentile (high T1 or low T1, 28 and 62 patients, respectively. Patients were also classified as SASD or non-SASD (38 and 52 patients, respectively determined by radiographs at final follow-up. Visual analog scale (VAS and Neck Disability Index (NDI scores for neck and arm pain were noted, and changes in the sagittal alignment of the cervical spine (SACS, functional spinal unit (FSU angle, and FSU range of motion (ROM were also noted. Univariate and multivariate logistic regression analyses were performed to determine the risk factors for SASD.Results: The overall rate of SASD was 42.2% (38/90. The SACS, FSU angle, FSU ROM, and SASD rates of the high T1 and low T1 slope groups were significantly different at the last follow-up. The NDI and VAS scores of the high T1 slope group were significantly greater than those of the low T1 slope. The multivariate logistic regression analysis showed that high T1 slope and endplate coverage discrepancy (ie, residual space behind the prosthesis were significant risk factors for SASD after BCDA.Conclusion: High T1 slope and endplate coverage discrepancy were associated with SASD after BCDA. Patients with a high preoperative T1

  9. Midterm outcomes of total cervical total disc replacement with Bryan prosthesis.

    Science.gov (United States)

    Zhang, Zhenxiang; Zhu, Wei; Zhu, Lixian; Du, Yaqing

    2014-07-01

    Short-term results have indicated that the Bryan cervical total disc replacement (TDR) favorably compares to anterior cervical decompression and fusion, while it is associated with fewer complications and higher levels of satisfaction. The aim of the present work was to assess the safety and efficacy of the device in the treatment for cervical degenerative disc disease, at 6-year follow-up. Fifty-eighty patients have performed their 6-year follow-up visit and have been analyzed clinically and radiologically. Clinical evaluation was based on neck disability index (NDI), visual analog scale (VAS), SF-36, and range of motion (ROM) at index levels. Each measurement was taken preoperatively and at 3 months, 6 months, 1 year, 3 years, and 6 years postoperatively. Complications and re-operations were also investigated. Occurrences of heterotopic ossifications (HO) and of adjacent level degeneration were detected by radiographs at 6-year follow-up. The mean NDI and VAS scores for arm and neck were significantly reduced for all postoperative periods compared with the average preoperative values. Motion was preserved at index levels (mean ROM = 8.6° ± 0.2° at 6 years), and 81.3 % of the segments were mobile at 6 years. HO was evident in 12/64 operated segments and not restricting the movement of the prosthesis in any case at 6-year follow-up. Six of sixty-four upper adjacent levels and 4/64 lower adjacent levels showed a slight degradation. There was 2 case of posterior migration of the prosthesis, which did not cause any clinical symptoms. No case showed evidence of subsidence, wear of the implant. At a 6-year follow-up, the cervical TDR using Bryan prosthesis displayed satisfactory clinical and radiographic outcomes without any significant complication. However, future efforts need to be directed toward the evaluation of a larger number of patients with longer follow-up.

  10. John Dalton and the London atomists: William and Bryan Higgins, William Austin, and new Daltonian doubts about the origin of the atomic theory

    Science.gov (United States)

    Grossman, Mark I.

    2014-01-01

    Most historians have ruled out the possibility that John Dalton was influenced by the theories of atomists William and Bryan Higgins, as well as William Austin, in developing his first table of atomic weights on 6 September 1803. I review and evaluate the case to be made for the influence of each scientist on Dalton. Contrary to prevailing views, I raise new Daltonian doubts, especially for Bryan Higgins.

  11. The friction sweat test as a new method for detecting facial anhidrosis in patients with Horner's syndrome.

    Science.gov (United States)

    Rosenberg, M L

    1989-10-15

    Forty-eight patients with Horner's syndrome documented by cocaine test were examined with the friction sweat test, a method of detecting a mild sweating asymmetry using alcohol and a standard office prism bar. In all but one patient, the results of the friction test corresponded with the results predicted by the history, physical examination, and Paredrine testing, or with the results of a starch-iodine sweat test. The test is a quick, simple, and reproducible procedure that allows a more accurate determination of the location of the Horner's syndrome at the initial office visit, and therefore assists in determining what tests need to be performed in the further examination of the patient.

  12. T1-nerve root neuroma presenting with apical mass and Horner's syndrome

    Directory of Open Access Journals (Sweden)

    Podnar Simon

    2007-03-01

    Full Text Available Abstract Background The appearance of dumbbell neuroma of the first thoracic root is extremely rare. The extradural component of a T1-dumbbell neuroma may present as an apical mass. The diagnosis of hand weakness is complex and may be delayed in T1-neuroma because of absence of the palpable cervical mass. One-stage removal of a T1-root neuroma and its intrathoracic extension demanded an extended posterior midline approach in the sitting position. Case presentation A 51-year old man had suffered a traumatic partial tendon rupture of his wrist flexor muscles 6 years ago. Since the incident he occasionally felt fullness and tenderness in the affected forearm with some tingling in his fingers bilaterally. During the last two years the hand weakness was continuous and hypotrophy of the medial flexor and intrinsic hand muscles had become apparent. Electrophysiological studies revealed an ulnar neuropathy in addition to mild median and radial nerve dysfunction, including a mild contralateral carpal tunnel syndrome. The diagnostic work-up for multiple mononeuropathy in the upper extremity was negative. Repeated electrophysiological studies revealed fibrillations in the C7 paravertebral muscles on the affected side. Chest x-ray revealed a large round apical mass on the affected side. A Horner's syndrome was noted at this point of diagnostic work-up. MRI of the cervical and thoracic spine revealed a dumbbell T1 neuroma enlarging the intervertebral foramen at T1-2 and a 5 cm large extradural tumor with extension into the apex of the ipsilateral lung. The patient underwent surgery in sitting position using a left dorsal midline approach. Although the T1 root could not be preserved, the patient's neurological condition was unchanged after the surgery. Conclusion Extended posterior midline exposure described here using hemilaminectomy, unilateral facetectomy and costo-transversectomy is efficient and safe for one-stage removal of dumbbell tumors at the T1

  13. Impact of T1 slope on surgical and adjacent segment degeneration after Bryan cervical disc arthroplasty.

    Science.gov (United States)

    Yang, Peng; Li, Yongqian; Li, Jia; Shen, Yong

    2017-01-01

    This retrospective study investigated an association between preoperative T1 slope and surgical and adjacent segment degeneration (SASD) after Bryan cervical disc arthroplasty (BCDA) in patients with cervical degenerative disc disease. Based on preoperative standing lateral radiographs, 90 patients were classified according to T1 slope that was higher or lower than the 50th percentile (high T1 or low T1, 28 and 62 patients, respectively). Patients were also classified as SASD or non-SASD (38 and 52 patients, respectively) determined by radiographs at final follow-up. Visual analog scale (VAS) and Neck Disability Index (NDI) scores for neck and arm pain were noted, and changes in the sagittal alignment of the cervical spine (SACS), functional spinal unit (FSU) angle, and FSU range of motion (ROM) were also noted. Univariate and multivariate logistic regression analyses were performed to determine the risk factors for SASD. The overall rate of SASD was 42.2% (38/90). The SACS, FSU angle, FSU ROM, and SASD rates of the high T1 and low T1 slope groups were significantly different at the last follow-up. The NDI and VAS scores of the high T1 slope group were significantly greater than those of the low T1 slope. The multivariate logistic regression analysis showed that high T1 slope and endplate coverage discrepancy (ie, residual space behind the prosthesis) were significant risk factors for SASD after BCDA. High T1 slope and endplate coverage discrepancy were associated with SASD after BCDA. Patients with a high preoperative T1 slope have a smaller FSU angle and more neck pain after BCDA.

  14. PBIS Is (Not) Behavior Analysis: a Response to Horner and Sugai (2015).

    Science.gov (United States)

    Loukus, Amy K

    2015-05-01

    I comment on Horner's and Sugai's article regarding the lessons learned from implementing Positive Behavioral Interventions and Support (PBIS)-that is, the things to consider when attempting to extend other works in behavior analysis to the likes of mainstream society. In adopting a critical eye toward the PBIS model, I comment first on the need for dissemination of behavioral principles to a public audience, and then outline the suggestions made by the authors for enhancing acceptance across disciplines. I clarify the definition of PBIS presented by the authors, and summarize the benefits and drawbacks associated with the conceptual argument surrounding the contention that PBIS is a behavior analytic approach to system-wide change, and argue instead for the distinction of elements in the PBIS model and their respective empirical effectiveness. I refer to other works in behavior analysis that are relevant to the current discussion and offer additional considerations for behavior analysts interested in forging ahead with endeavors that aim increase dissemination, particularly those that incorporate a culmination of alternative professional practices.

  15. Evaluation of brine disposal from the Bryan Mound site of the Strategic Petroleum Reserve Program. Annual report, September 1981-August 1982. Volume II

    Energy Technology Data Exchange (ETDEWEB)

    Hann, R.W. Jr.; Randall, R.E. (eds.)

    1983-06-01

    The Department of Energy's Strategic Petroleum Reserve Program began leaching the Bryan Mound salt dome and discharging brine into the coastal waters offshore of Freeport, Texas on March 10, 1980. This report describes the findings of a team of Texas A and M University scientists and engineers who have conducted a study to evaluate the effects of the Bryan Mound brine discharge on the marine environment. The study addresses the areas of physical oceanography, analysis of the discharge plume, water and sediment quality, nekton, benthos, and data management. It focuses on the period from September 1981 through August 1982. Volume II contains appendices for: (1) supporting data for physical oceanography; (2) supporting data for analysis of the discharge plume; (3) supporting data for water and sediment quality; (4) supporting data for nekton studies; and (5) Bryan Mound discharge data.

  16. Síndrome de Horner y bloqueo del plexo braquial ipsilateral en un caso de analgesia epidural para el trabajo del parto Horner´s sydrome and ipsilateral brachial plexus block during an epidural analgesia labour procedure

    OpenAIRE

    J. Avellanosa; J. Vera; P. Morillas; E. Gredilla; F. Gilsanz

    2006-01-01

    El Síndrome de Horner es una complicación de la anestesia epidural que aparece más frecuentemente en pacientes obstétricas debido a los cambios fisiológicos y anatómicos propios del embarazo; sin embargo, su incidencia es baja, y sólo se han descrito dos casos previos asociando un bloqueo del plexo braquial. Presentamos el caso de una gestante de 23 años que precisó analgesia epidural para el trabajo de parto. Tras comprobar la correcta colocación del catéter se administró una dosis inicial e...

  17. Evaluation of brine disposal from the Bryan Mound site of the strategic petroleum reserve program. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Case, Robert J.; Chittenden, Jr, Mark E.; Harper, Jr, Donald E.; Kelly, Jr, Francis J.; Loeblich, Laurel A.; McKinney, Larry D.; Minello, Thomas J.; Park, E. Taisoo; Randall, Robert E.; Slowey, J. Frank

    1981-01-01

    On March 10, 1980, the Department of Energy's Strategic Petroleum Reserve Program began leaching the Bryan Mound salt dome and discharging the resulting brine into the coastal waters off Freeport, Texas. During the months of March and April, a team of scientists and engineers from Texas A and M University conducted an intensive environmental study of the area surrounding the diffuser site. A pipeline has been laid from the Bryan Mound site to a location 12.5 statute miles (20 km) offshore. The last 3060 ft (933 m) of this pipeline is a 52-port diffuser through which brine can be discharged at a maximum rate of 680,000 barrels per day. Initially, 16 ports were open which permitted a maximum discharge rate of 350,000 barrels per day and a continuous brine discharge was achieved on March 13, 1980. The purpose of this report is to describe the findings of the project team during the intensive postdisposal study period of March and April, 1980. The major areas of investigation are physical oceanography, analysis of the discharge plume, water and sediment quality, nekton, benthos, phytoplankton, zooplankton, and data management.

  18. Bryan Jennett and the field of traumatic brain injury. His intellectual and ethical heritage in neuro-intensive care.

    Science.gov (United States)

    Stocchetti, Nino; Citerio, Giuseppe; Maas, Andrew; Andrews, Peter; Teasdale, Graham

    2008-10-01

    William Bryan Jennett, one of the leading figures in neurosurgery of the twentieth century, has died on 26 January 2008, at the age of 81. He made fundamental contributions to the field of traumatic brain injury (TBI) that still shape diagnosis, management and prognosis worldwide, in the second part of the last century. This paper is meant to gratefully acknowledge his contributions and to reflect on the implications that his work has for neurointensive care today. Starting from his early steps, we tried to highlight his fundamental work on diagnosis of severity in TBI, on rescue, treatment and prognosis of severe TBI. Moreover, his contribution in the definition of vegetative state, minimally conscious state and brain death has been emphasized. The contribution of Professor Bryan Jennett was in fact seminal in many aspects: the application of a common language in brain damage evaluation, where GCS and GOS are now universally employed; a critical approach to TBI diagnosis and treatment, in the search of proven better therapies; a quantitative approach to TBI prognosis, based on large clinical series and appropriate statistics; a strong commitment to the ethical implication of survival after severe injury, including the vegetative status; social responsibility in the diagnosis of brain death and in organ donors procurement. For these reasons, he can be considered one of the leading figures in neurosurgery and neurology of the twentieth century. This paper is meant to gratefully acknowledge his contributions and to reflect on the implications that his work has for neuro-intensive care today.

  19. Evaluation of brine disposal from the Bryan Mound site of the Strategic Petroleum Reserve program. Final report of 18 month postdisposal studies

    Energy Technology Data Exchange (ETDEWEB)

    Chittenden, M.E. Jr.; Cummings, J.A.; Harper, D.E. Jr.

    1982-03-01

    The Department of Energy's Strategic Petroleum Reserve Program began leaching the Bryan Mound salt dome and discharging brine into the coastal waters of Freeport, Texas on March 10, 1980. This report describes the findings of a team of Texas A and M University scientists and engineers who have conducted an eighteen-month environmental study to evaluate the effects of the Bryan Mound brine discharge. The study addresses the areas of physical oceanography, analysis of the discharge plume, water and sediment quality, nekton, benthos, phytoplankton, zooplankton, and data management.

  20. Reagent Control of Geometric Selectivity and Enantiotopic Group Preference in Asymmetric Horner-Wadsworth-Emmons Reactions with meso-Dialdehydes

    DEFF Research Database (Denmark)

    Tullis, Joshua S.; Vares, Lauri; Kann, Nina

    1998-01-01

    Results from asymmetric Horner-Wadsworth-Emmons reactions between chiral phosphonate reagents 3a-d, which contain (1R,2S,5R)-8-phenylmenthol as a chiral auxiliary, and meso-dialdehydes 6 and 14 are presented. It was found that both the geometric selectivities and the levels of asymmetric induction...... choice of reagent and conditions, either (E)- or (Z)-monoaddition products could be obtained geometrically pure and with good to excellent diastereoselectivities, in synthetically useful yields. Analyses of the absolute configurations of the products showed that the (E)-selective reagents (3a...

  1. A Response to Yang, Burrola, and Bryan: Suicide Ideation among Participants in an After-School Program--A Convenience Sample

    Science.gov (United States)

    White, Jennifer

    2009-01-01

    The exploratory study conducted by Yang, Burrola, and Bryan (2009) provides an excellent platform for calling attention to the issue of suicide risk among elementary and middle school youth. Using their study as a catalyst, with this commentary I consider the finding that 12% of the young people surveyed acknowledged that they had "seriously…

  2. Environmental assessment of the brine pipeline replacement for the Strategic Petroleum Reserve Bryan Mound Facility in Brazoria County, Texas

    International Nuclear Information System (INIS)

    1993-09-01

    The Department of Energy (DOE) has prepared an environmental assessment (EA), DOE/EA-0804, for the proposed replacement of a deteriorated brine disposal pipeline from the Strategic Petroleum Reserve (SPR) Bryan Mound storage facility in Brazoria County, Texas, into the Gulf of Mexico. In addition, the ocean discharge outfall would be moved shoreward by locating the brine diffuser at the end of the pipeline 3.5 miles offshore at a minimum depth of 30 feet. The action would occur in a floodplain and wetlands; therefore, a floodplain/wetlands assessment has been prepared in conjunction with this EA. Based on the analyses in the EA, DOE has determined that the proposed action is not a major Federal action significantly affecting the quality of the human environment within the meaning of the National Environmental Policy Act (NEPA) of 1969 (42 USC. 4321, et seg.). Therefore, the preparation of an Environmental Impact Statement (EIS) is not required, and the Department is issuing this Finding of No Significant Impact (FONSI). This FONSI also includes a Floodplain Statement of Findings in accordance with 10 CFR Part 1022

  3. Environmental assessment of the brine pipeline replacement for the Strategic Petroleum Reserve Bryan Mound Facility in Brazoria County, Texas

    Energy Technology Data Exchange (ETDEWEB)

    1993-09-01

    The Department of Energy (DOE) has prepared an environmental assessment (EA), DOE/EA-0804, for the proposed replacement of a deteriorated brine disposal pipeline from the Strategic Petroleum Reserve (SPR) Bryan Mound storage facility in Brazoria County, Texas, into the Gulf of Mexico. In addition, the ocean discharge outfall would be moved shoreward by locating the brine diffuser at the end of the pipeline 3.5 miles offshore at a minimum depth of 30 feet. The action would occur in a floodplain and wetlands; therefore, a floodplain/wetlands assessment has been prepared in conjunction with this EA. Based on the analyses in the EA, DOE has determined that the proposed action is not a major Federal action significantly affecting the quality of the human environment within the meaning of the National Environmental Policy Act (NEPA) of 1969 (42 USC. 4321, et seg.). Therefore, the preparation of an Environmental Impact Statement (EIS) is not required, and the Department is issuing this Finding of No Significant Impact (FONSI). This FONSI also includes a Floodplain Statement of Findings in accordance with 10 CFR Part 1022.

  4. Spontaneous cervical intradural disc herniation presenting with Brown-Séquard and Horner's syndrome: lesson learned from a very unique case.

    Science.gov (United States)

    Baudracco, Irene; Grahovac, Gordan; Russo, Vittorio M

    2017-05-01

    Cervical spontaneous intradural disc herniation (IDH) is an extremely rare condition. We describe a unique case of a patient presenting with a Brown-Séquard syndrome (BSS) and Horner's syndrome (HS). This study aimed to report an unusual case of spontaneous cervical intradural disc herniation that presented with Horner's and Brown-Séquard syndrome (BSS) and discuss difficulties in preoperative diagnosis and treatment difficulties of intradural cervical disc. Notes and images review, and analysis of the relevant literature. A 45-year old female presented with acute Horner's syndrome and Brown-Séquard syndrome. The magnetic resonance imaging of cervical spine revealed C4-5 disc extrusion with cord compression. The patient underwent urgent decompression through an anterior cervical corpectomy and fusion. Patient fully recovered 6 months after disease onset. We would like to emphasize that prompt and anterior cervical decompression is the treatment of choice, as it directly address the problem and allows dura repair in spontaneous cervical disc herniation.

  5. Artroplastia total de disco cervical com prótese de Bryan: resultados clínicos e funcionais Artroplastía cervical total con prótesis de Bryan: resultados clínicos y funcionales Cervical total disc arthroplasty with Bryan disc: clinical and functional outcomes

    Directory of Open Access Journals (Sweden)

    Eduardo Machado de Menezes

    2012-09-01

    Full Text Available OBJETIVO: Avaliar resultados da artroplastia total disco cervical com a prótese de Bryan para tratamento da cervicobraquialgia (radiculopatia e da mielopatia compressiva. MÉTODOS: No período de 2002 a 2007, a equipe da CECOL operou 65 pacientes. Somente 28 pacientes foram localizados em 2010 para uma nova coleta de dados. Foi feita avaliação pré e pós-operatória, utilizando-se o questionário CSOQ (Cervical Spine Outcomes Questionnaire. Os critérios de Odom foram utilizados somente na avaliação pós-operatória. Ambos foram traduzidos e adaptados para cultura local. RESULTADOS: Houve melhora funcional e sintomática significativa na maioria dos pacientes. A atenuação da dor cervical (axial e braquial (radicular foi semelhante. Os critérios Odom indicaram 82,1% de bons e ótimos resultados, 10% satisfatórios e 7% ruins. Houve apenas uma complicação (3%, que foi revertida com a artrodese anterior. CONCLUSÕES: A artroplastia total de disco cervical demonstrou ser um método seguro e eficaz para tratamento de casos selecionados de hérnia de disco cervical associada a radiculopatia e/ou mielopatia a curto e médio prazo.OBJETIVO: Evaluar los resultados de la artroplastia discal cervical con la prótesis de Bryan para el tratamiento del radiculopatía y compresión de la médula espinal (mielopatía. MÉTODOS: El equipo de CECOL ha operado 65 pacientes en el período de 2002 a 2007. Sólo 28 pacientes fueron localizados en 2010 para una nueva recolección de datos. La evaluación pre y postoperatoria se realizó mediante un cuestionario CSOQ (Cervical Spine Outcomes Questionnaire. Los criterios de Odom sólo fueron utilizados en la evaluación postoperatoria. Ambos fueron traducidos y adaptados a la cultura local. RESULTADOS: Hubo una mejora significativa sintomática y funcional en la mayoría de los pacientes. La atenuación del dolor de cuello (axial y braquial (radicular fue similar. Los criterios Odom demostraron 82,1% de

  6. Offshore oceanographic and environmental monitoring services for the Strategic Petroleum Reserve. Volume I. Appendices. Annual report for the Bryan Mound Site, September 1982-August 1983

    Energy Technology Data Exchange (ETDEWEB)

    None

    1984-03-01

    The Department of Energy's Strategic Petroleum Reserve Program began leaching the Bryan Mound salt dome and discharging brine into the coastal waters offshore of Freeport, Texas on March 10, 1980. This report describes the findings of a team of Texas A and M University scientists and engineers who have conducted a study to evaluate the effects of the Bryan Mound brine discharge on the marine environment. The study addresses the areas of physical oceanography, analysis of the discharge plume, water and sediment quality, nekton, benthos and data management. It focuses on the period from September 1982 through August 1983. The ambient physical environment and its temporal and spatial variability were studied by means of continuously recording in situ current/conductivitiy/temperature meters and twelve, one-day synoptic hydrographic cruises. The quarterly water and sediment quality data show a small increase in salinity, sodium and chloride ions occurs in the bottom waters and sediment pore waters near the diffuser relative to those values measured at stations farther away. Data from the brine plume study for this reporting study show the largest areal extent within the +1 o/oo above ambient salinity contour was 40.0 km/sup 2/ which occurred on August 11, 1983. It appears that brine disposal at Bryan Mound has had neglible if any influence on the nekton community surrounding the diffuser. The benthic quarterly data from 26 stations, including 7 collections made after the diffuser outflow rate was increased to 1,000,000 barrels/day, show the total numbers of species at the diffuser station were higher than most other nearfield stations as well as many farfield stations in both the pre- and post-1,000,000 barrels/day brine flow periods. 138 references, 175 figures, 53 tables.

  7. A clinical analysis of 4- and 6-year follow-up results after cervical disc replacement surgery using the Bryan Cervical Disc Prosthesis.

    Science.gov (United States)

    Goffin, Jan; van Loon, Johan; Van Calenbergh, Frank; Lipscomb, Bailey

    2010-03-01

    In this study, long-term results are presented from clinical studies of the Bryan Cervical Disc Prosthesis at University Hospital Gasthuisberg in Leuven, Belgium. A total of 98 patients (89 with 1-level and 9 with 2-level implantations) agreed to participate in follow-up studies for up to 10 years postoperatively. This article focuses on the 4- and 6-year results. Patients in one of the clinical studies had either radiculopathy or myelopathy associated with spondylosis and/or disc herniations that did not respond to conservative treatment. Patients from the other clinical study received commercially available Bryan devices and the study protocol did not have specific inclusion/exclusion criteria. More than 90% of the patients were considered to have radiculopathy. Clinical measurements discussed in the article include the 36-Item Short Form Health Survey, Neck Disability Index, numerical ratings of neck and arm pain, neurological outcomes, and Odom classification. Angular motion findings from lateral flexion-extension radiographs are also presented. The occurrence of adverse events and second surgeries are examined as an indicator of device safety. The clinical outcomes at 4 and 6 years postoperatively appear consistent with the previously reported results at 1 and 2 years postoperatively. The mean angular motion results at 4 and 6 years postoperatively for 1-level patients were 7.3 and 7.7 degrees, respectively. Two-level patients had slightly less motion at 4 and 6 years postoperatively with mean caudad values of 5.7 and 6.0 degrees, respectively, and cephalad values of 4.2 and 6.2 degrees, respectively. Efforts were made to capture adverse events, regardless of their nature and relatedness to the study surgery. This effort resulted in a relatively high number of recorded events. However, only 6 patients experienced events that were judged by the investigator to be related, either possibly or definitely, to the Bryan device. These events included device migration

  8. Mild one-pot Horner-Wadsworth-Emmons olefination and intramolecular N-arylation for the syntheses of indoles, all regio-isomeric azaindoles, and thienopyrroles.

    Science.gov (United States)

    Choi, Ji Hye; Lim, Hwan Jung

    2015-05-14

    The syntheses of various N-protected aromatic-ring fused pyrrole-2-carboxylate derivatives have been accomplished using mild one-pot Horner-Wadsworth-Emmons olefination and Cu-catalyzed intramolecular N-arylation reactions. The optimized mild one-pot reaction conditions of various 2-bromo arylcarboxaldehydes with commercially available N-protected phosphonoglycine trimethylesters gave the desired aromatic-ring fused pyrrole-2-carboxylates, such as substituted indole-, all regio-isomeric azaindole-, and thienopyrrole-2-carboxylates, in good to excellent yields. These conditions showed broad substrate compatibility, without the loss of the protecting group.

  9. Rationalization of Product Selectivities in Asymmetric Horner-Wadsworth-Emmons Reactions by Use of a New Method for Transition-State Modeling

    DEFF Research Database (Denmark)

    Norrby, Per-Ola; Brandt, Peter; Rein, Tobias

    1999-01-01

    A new method for creating a transition-state force field, based on quantum chemical normal-mode analysis, is described. The force field was used to rationalize the experimentally observed product selectivities in asymmetric Horner-Wadsworth-Emmons reactions between some chiral phosphonates...... and chiral, racemic aldehydes. It was shown that if the transition states for the addition step (TS1) and for the subsequent ring closure to an oxaphosphetane (TS2) are both considered in the modeling, the product selectivity can be rationalized with good accuracy....

  10. Clinical and radiographic results after treatment of cervical degenerative disc disease with the bryan disc prosthesis: a prospective study with 2-year follow-up.

    Science.gov (United States)

    Wang, Quanming; Cheng, Hongbing; Mao, Zhixiang; Qi, Xinsheng; Zhang, Meng; Chen, Yun

    2011-12-01

    The purpose of this study was to prospectively evaluate the clinical and radiographic results obtained with the Bryan disc prosthesis (Medtronic Sofamor Danek, Memphis, TN) in 20 consecutive patients with single-level or two-level cervical degenerative disc disease. All patients were followed up for at least two years. The mean Neck Disability Index and the visual analogue scale for neck and arm pain scores were significantly reduced for all postoperative periods compared with the mean preoperative values. SF-36 outcome measures, including the physical and mental component scores, significantly improved after surgery and remained unchanged or improved at two years postoperatively. According to Odom's scale, 18 patients (90%) had good to excellent outcomes. The range of movement of the cervical spine, of the functional spinal unit, the treated segment and the adjacent segment temporarily decreased at the early assessment, but all recovered to preoperative levels over a 6-24 months time period. There was no heterotopic ossification at the implanted levels, no adjacent level degeneration and no prosthesis subsidence or excursion. Cervical disc replacement using the Bryan disc prosthesis appeared to be safe and demonstrated encouraging clinical and radiological outcomes. However, further studies are required to assess the long-term efficacy of this prosthesis and its protective influence on adjacent levels.

  11. Horner's syndrome after blunt cervical and chest trauma: case report Síndrome de Horner após trauma cérvico-torácico fechado: relato de caso

    Directory of Open Access Journals (Sweden)

    Wellingson Silva Paiva

    2007-12-01

    Full Text Available Horner‘s syndrome is the triad of miosis, ptosis, and anhidrosis, resulting from disruption of the sympathetic pathways. This article describes an uncommon case of Horner‘s syndrome in a 22-year-old man after blunt trauma to the neck and chest without carotid artery dissection. The patient was brought to the emergency service after motorcycle fall. Neurologic examination revealed a patient presenting the score 15 at Glasgow Coma Scale. The left eyelid was 1-2 mm lower than the right. Carotid Doppler and angiotomography were undertaken and revealed no abnormalities of the carotid artery. CT disclosed a mediastinal hematoma extending to the left apex, compressing the left sympathetic chain. The understanding of this clinical entity may help the surgeon to make a better differential diagnosis in trauma patients in whom prompt diagnosis is critical to stablish the correct treatment.A síndrome de Horner compreende a tríade de miose, ptose e anidrose, resultado de lesão em algum ponto das vias simpáticas. O referido estudo apresenta um caso da referida síndrome em um jovem de 22 anos vitima de queda de moto, com escoriações no tórax e no pescoço, sem dissecção carotídea. Ao exame neurológico, encontrava-se com 15 pontos na Escala de Coma de Glasgow, com miose à esquerda e ptose palpebral ipsilateral. Realizado Doppler de carótidas e angiotomografia dos vasos cérvico-cranianos não sendo evidenciadas anormalidades. A tomografia de tórax mostrou um hematoma no ápice pulmonar esquerdo, comprimindo a cadeia simpática ipsilateral. O conhecimento desta entidade clínica pode ajudar o cirurgião a fazer um diagnóstico diferencial adequado nos pacientes vítimas de traumas, nos quais o diagnóstico correto e eficaz pode ser fundamental para a definição da conduta a ser tomada.

  12. Limitations of the Wittig-Horner-type annulation of fluorobutenolide moiety to 3-hydroxyquinoline-2,4(2H,3H)-diones. Novel modifications of the Perkow reaction including fluorinated acyloxy leaving groups

    Czech Academy of Sciences Publication Activity Database

    Pomeisl, Karel; Kvíčala, J.; Paleta, O.; Klásek, A.; Kafka, S.; Kubelka, V.; Havlíček, J.; Čejka, J.

    2007-01-01

    Roč. 63, č. 42 (2007), s. 10549-10561 ISSN 0040-4020 Grant - others:GA ČR(CZ) GA203/07/0320 Institutional research plan: CEZ:AV0Z40550506 Keywords : Wittig-Horner synthesis * Fluorofuranone * but-2-enolide * cytostatic activity Subject RIV: CC - Organic Chemistry Impact factor: 2.869, year: 2007

  13. Evaluation of brine disposal from the Bryan Mound site of the Strategic Petroleum Reserve Program. Annual report, September 1981-August 1982. Volume 1

    Energy Technology Data Exchange (ETDEWEB)

    Hann, R.W. Jr.; Randall, R.E. (eds.)

    1983-06-01

    The Department of Energy's Strategic Petroleum Reserve Program began leaching the Bryan Mound salt dome and discharging brine into the coastal waters offshore of Freeport, Texas on March 10, 1980. This report describes the findings of a team of Texas A and M University scientists and engieers who have conducted a study to evaluate the effects of the Bryan Mound brine discharge on the marine environment. The study addresses the areas of physical oceanography, analysis of the discharge plume, water and sediment quality, nekton, benthos, and data management. It focuses on the period from September 1981 through August 1982. The physical oceanography studies include the analysis of data from continuous recording in situ current/conductivity/temperature meters and synoptic hydrographic data. The quarterly water and sediment quality data show a slight increase in sodium and chloride ions occur in the sediment pore waters at the diffuser and that this increase is reflected in the ion ratios of Na/K and SO/sub 4//Cl. Increases in the ion levels with time appears to be a trend, but the extent cannot be determined as yet. Plume measurements indicate the higher brine exit velocity has increased the areal and vertical extent and decreased the above ambient salinity values. The quarterly nekton sampling indicate there has been no dramatic lethal effects at any station within any cruise nor any unusual behavior in captured specimens. In general, the only change in the benthos has been the persistent ring effect. There have been fluctuations in population densities, but they have fallen within naturally occurring extremes over the period of brine disposal.

  14. Anisocoria and Horner's Syndrome

    Science.gov (United States)

    ... syndrome. This is a condition most common in young adult females, which usually begins in one eye. The ... Conjunctivitis Corneal Abrasions Dilating Eye Drops Lazy eye (defined) Pink eye (defined) Retinopathy of Prematurity Strabismus Stye ( ...

  15. A Reply to the Commentaries on “School-wide PBIS: An Example of Applied Behavior Analysis Implemented at a Scale of Social Importance” by Horner and Sugai (2015): PBIS is Function over Form: The Clear Behavioral Roots and Opportunities the PBIS Framework presents to the Field of Behavior Analysis Moving Forward

    OpenAIRE

    Putnam, Robert F.; Knoster, Tim

    2015-01-01

    In the previous issue of Behavior Analysis in Practice (May 2015), a special section of the journal was devoted to positive behavior intervention and support (PBIS). Horner and Sugai (2015) published a manuscript providing an overview of school-wide PBIS describing how PBIS is an example of applied behavior analysis at a scale of social importance. A number of manuscripts providing commentary on the Horner and Sugai manuscript were also published in this special section of the journal. This p...

  16. Synthesis of a 2,2'-bipyridyl functionalized oligovinylene-phenylene using Heck and Horner-Wadsworth-Emmons reactions and X-ray crystal structure of E-(4-(4-bromostyryl)phenyl)(methyl)sulfane.

    Science.gov (United States)

    Karácsony, Orsolya; Deschamps, Jeffrey R; Trammell, Scott A; Nita, Rafaela; Knight, D Andrew

    2012-05-14

    The synthesis of a new 2,2'-bipyridyl functionalized oligovinylenephenylene (OVP-5) containing a methyl protected thiol using Heck coupling and the Horner-Wadsworth-Emmons reaction and is described. A key step involving a diisopropylcarbodiimide promoted dehydration of a stable β-hydroxyphosphonate intermediate was identified. The structure of precursor E-(4-(4-bromostyryl)phenyl)(methyl)sulfane was determined using X-ray crystallography.

  17. Synthesis of a 2,2'-Bipyridyl Functionalized Oligovinylene-Phenylene Using Heck and Horner-Wadsworth-Emmons Reactions and X-ray Crystal Structure of E-(4-(4-Bromostyryl)phenyl)(methyl)sulfane

    OpenAIRE

    Karácsony, Orsolya; Deschamps, Jeffrey R.; Trammell, Scott A.; Nita, Rafaela; Knight, D. Andrew

    2012-01-01

    The synthesis of a new 2,2'-bipyridyl functionalized oligovinylenephenylene (OVP-5) containing a methyl protected thiol using Heck coupling and the Horner-Wadsworth-Emmons reaction and is described. A key step involving a diisopropylcarbodiimide promoted dehydration of a stable b-hydroxyphosphonate intermediate was identified. The structure of precursor E-(4-(4-bromostyryl)phenyl)(methyl)sulfane (1) was determ...

  18. Synthesis of a 2,2'-Bipyridyl Functionalized Oligovinylene-Phenylene Using Heck and Horner-Wadsworth-Emmons Reactions and X-ray Crystal Structure of E-(4-(4-Bromostyrylphenyl(methylsulfane

    Directory of Open Access Journals (Sweden)

    Orsolya Karácsony

    2012-05-01

    Full Text Available The synthesis of a new 2,2'-bipyridyl functionalized oligovinylenephenylene (OVP-5 containing a methyl protected thiol using Heck coupling and the Horner-Wadsworth-Emmons reaction and is described. A key step involving a diisopropylcarbodiimide promoted dehydration of a stable b-hydroxyphosphonate intermediate was identified. The structure of precursor E-(4-(4-bromostyrylphenyl(methylsulfane (1 was determined using X-ray crystallography.

  19. Cervical anterior hybrid technique with bi-level Bryan artificial disc replacement and adjacent segment fusion for cervical myelopathy over three consecutive segments.

    Science.gov (United States)

    Chen, Jiang; Xu, Lin; Jia, Yu-Song; Sun, Qi; Li, Jin-Yu; Zheng, Chen-Ying; Bai, Chun-Xiao; Yu, Qin-Sheng

    2016-05-01

    This study aimed to assess the preliminary clinical efficacy and feasibility of the hybrid technique for multilevel cervical myelopathy. Considering the many shortcomings of traditional treatment methods for multilevel cervical degenerative myelopathy, hybrid surgery (bi-level Bryan artificial disc [Medtronic Sofamor Danek, Memphis, TN, USA] replacement and anterior cervical discectomy and fusion) should be considered. Between March 2006 and November 2012, 108 patients (68 men and 40 women, average age 45years) underwent hybrid surgery. Based on the Japanese Orthopaedic Association (JOA) score, Neck Disability Index (NDI), and Odom's criteria, the clinical symptoms and neurological function before and after surgery were evaluated. Mean surgery duration was 90minutes, with average blood loss of 30mL. Mean follow-up duration was 36months. At the final follow-up, the mean JOA (± standard deviation) scores were significantly higher compared with preoperative values (15.08±1.47 versus 9.18±1.22; P<0.01); meanwhile, NDI values were markedly decreased (12.32±1.03 versus 42.68±1.83; P<0.01). Using Odom's criteria, the clinical outcomes were rated as excellent (76 patients), good (22 patients), fair (six patients), and poor (four patients). These findings indicate that the hybrid method provides an effective treatment for cervical myelopathy over three consecutive segments, ensuring a good clinical outcome. Copyright © 2015 Elsevier Ltd. All rights reserved.

  20. 874-IJBCS-Article-Dr OJIE Abu Winifred

    African Journals Online (AJOL)

    DR GATSING

    The incidence of HIV/AIDS infection within our society has gotten to an alarming proportion especially as it affects our youths, the group to which majority of our commercial motorcyclists belong. This prompted the need to assess the level of awareness, knowledge and preventive measures by these stakeholders towards.

  1. A Reply to the Commentaries on "School-wide PBIS: An Example of Applied Behavior Analysis Implemented at a Scale of Social Importance" by Horner and Sugai (2015): PBIS is Function over Form: The Clear Behavioral Roots and Opportunities the PBIS Framework presents to the Field of Behavior Analysis Moving Forward.

    Science.gov (United States)

    Putnam, Robert F; Knoster, Tim

    2016-03-01

    In the previous issue of Behavior Analysis in Practice (May 2015), a special section of the journal was devoted to positive behavior intervention and support (PBIS). Horner and Sugai (2015) published a manuscript providing an overview of school-wide PBIS describing how PBIS is an example of applied behavior analysis at a scale of social importance. A number of manuscripts providing commentary on the Horner and Sugai manuscript were also published in this special section of the journal. This paper will review this PBIS manuscript along with the associated commentaries published in the May 2015 special section.

  2. Elizabeth M. Bryan: tributes from home and abroad; research reviews: anorexia nervosa in opposite-sex twins, twin study of self-esteem, DNA differences in monozygotic twins; twins and more twins: twins living apart, twins playing together, twins working together, twins playing apart, multiple birth odds.

    Science.gov (United States)

    Segal, Nancy L

    2008-06-01

    Elizabeth M. Bryan: Tributes From Home and Abroad May 13, 1942 - February 21, 2008 The life and work of Dr Elizabeth M. Bryan, our late distinguished twin studies colleague, are remembered. Tributes come from colleagues in the United States and the United Kingdom, where Elizabeth lived and worked. This section is followed by reviews of twin research on anorexia nervosa, self-esteem and DNA differences in monozygotic twins. The lives of some noteworthy twins are also briefly chronicled, both for their scientific value and human interest. An update on current twinning rates follows.

  3. Genetics Home Reference: Horner syndrome

    Science.gov (United States)

    ... of the eyes may differ in color (iris heterochromia), with the iris of the affected eye being ... after age 2 do not generally have iris heterochromia. The abnormalities in the eye area related to ...

  4. [Advances in the investigation of structure and function of G protein-coupled receptors (by awarding the Nobel Prize for Chemistry in 2012 to Robert Lefkowitz and Bryan Kobilka)].

    Science.gov (United States)

    Shpakov, A O

    2013-01-01

    The Nobel Prize for Chemistry in 2012 was awarded to Robert Lefkowitz and Bryan Kobilka "for studies in G-protein-coupled receptors" (GPCR). In this review the most important discoveries of these Nobel Prize winners dealing with investigation of the structure and functions of GPCR were discussed and analyzed. In the 1980s, they were the first in the world to clone GPCR--the 32-adrenergic receptor. After 20 years, the team led by B. Kobilka for the first time prepared this receptor in the crystalline form and established its three-dimensional structure. In these studies, unique approaches for purification and crystallization of other receptors were developed. In 1980s, R. Lefkowitz and his colleagues discovered beta-arrestins that regulate signal transduction occurring via GPCR. Later they revealed that beta-arrestins were the most important members of signal transduction and were responsible for the signal transduction from the hormone-activated receptor to intracellular signaling cascades independently of heterotrimeric G-proteins. These and other outstanding discoveries of R. Lefkowitz and B. Kobilka have become the basis for the novel area of molecular biology and pharmacology--the molecular endocrinology of GPCR.

  5. Upheavals of Emotions, Madness of Form: Mary M. Talbot’s and Bryan Talbot’s Dotter of Her Father’s Eyes and a Transdiegetised (AutoBiographical Commix

    Directory of Open Access Journals (Sweden)

    Kusek Robert

    2015-07-01

    Full Text Available In 2012, Mary M. Talbot and Bryan Talbot joined the likes of Richard Ellmann, Gordon Bowker and Michael Hastings and in their graphic memoir Dotter of Her Father’s Eyes (2012 offered a new re-telling of James Joyce’s life, focusing, in particular, on the difficult relationship between the great Irish writer, and his daughter Lucia. However, the story of a complicated emotional bond between Joyce and Lucia was only a framework for an autobiographical coming-of age narrative about Mary M. Talbot herself and her violent relationship with James S. Atherton, a celebrated Joycean scholar and her very own “cold mad feary father”. Following Martha C. Nussbaum’s conception about cognitive and narrative structure of emotions postulated in Love’s Knowledge (1990 and Upheavals of Thoughts (2001, this article wishes to argue in favour of an organic connection between the volume’s thematic concerns and its generic affiliation. In other words, it discusses how a specific class of emotions pertaining to Lucia’s gradual mental disintegration can be adequately told only in a specific literary form, i.e. in a transdiegetised “commix”, an (autobiographical account which occupies a threshold space between a comic and a novel, fiction and non-fiction, biography and autobiography, words and pictures.

  6. Sebaceous Carcinoma of the Ocular Region: The 2014 Professor Winifred Mao Lecture.

    Science.gov (United States)

    Shields, Jerry A; Saktanasate, Jarin; Lally, Sara E; Carrasco, Jacqueline R; Shields, Carol L

    2015-01-01

    Sebaceous carcinoma is a malignancy arising in the periocular region that can lead to blindness and tumor-related metastases. This study is a review of published literature and personal experience. This malignancy can arise from the sebaceous units in the tarsus (meibomian glands), in association with the cilia (Zeis glands), in the brow, and in the caruncle. There is a tendency for diffuse intraepithelial growth (pagetoid spread) that can be clinically invisible. Detection before lymph node metastasis is critical. This malignancy often masquerades as chronic unilateral conjunctivitis or blepharitis, typically in older patients. Management includes a 2-step approach with step 1 focused on eyelid and conjunctival map biopsies to determine the full extent of solid deep tumor and pagetoid spread. After complete review of all biopsies, step 2 is performed using local resection for all deep tumor, cryotherapy to pagetoid disease, and reconstruction. In most cases, the posterior lamella of eyelid is sacrificed with tumor removal, whereas the anterior lamella of the eyelid can be saved. After removal and cryotherapy, immediate reconstruction, using clean instruments, with buccal membrane graft for the posterior lamella and skin flap for the anterior lamella, is developed. For persistent or recurrent pagetoid disease, cryotherapy, topical mitomycin C, or plaque radiotherapy is provided. Exenteration is sometimes necessary. Sebaceous carcinoma, if detected early, can be managed with carefully planned map biopsy to determine tumor extent, followed by local resection, cryotherapy, and eyelid reconstruction. Orbital exenteration is occasionally necessary.

  7. Jälitades vandlit / Bryan Christie ; fotod Brent Stirton

    Index Scriptorium Estoniae

    Christie, Bryan

    2015-01-01

    Osa Aafrika sõjategevuseks kasutatavast rahast saadakse vandliärist. Võltsvõhad, millesse on peidetud GPS-seadmed, paljastavad Aafrikas salakütitud vandli tee. Võitlusest salaküttimise vastu Aafrika riikides

  8. Cephalea, Horner's syndrome and cerebral ischemia: pathognomonic triad

    Directory of Open Access Journals (Sweden)

    Fulvio Pomero

    2007-06-01

    Full Text Available Dissection of cerebral vessels represents an important cause of stroke in young patients without cardiovascular risk factors. Clinical feature of this pathology is quite peculiar and is described as combination of cephalea, Horner’s syndrome and cerebral ischemia. Clinical suspicion and fast access to ecocolordoppler are the only ways to save vessels’ patency and to restore cerebral blood flow.

  9. Mechanisms of Change in a Group Career Exploration Intervention: The Case of "Bryan"

    Science.gov (United States)

    Kerner, Emily A.; Fitzpatrick, Marilyn R.; Rozworska, Karolina A.; Hutman, Heidi

    2012-01-01

    This article presents the case of one 16-year-old male who failed a career exploration class and then participated in a group intervention designed to increase his motivation to explore. Using a case study method, the authors triangulated video, questionnaire, observational, interview, and artefact data to identify the main themes that emerged for…

  10. Cardiovascular Damage in Alzheimer Disease: Autopsy Findings From the Bryan ADRC

    Directory of Open Access Journals (Sweden)

    Elizabeth H. Corder

    2005-01-01

    associated with the APOEε4. Instead, autopsy findings of extensive atherosclerosis were associated with possible, not probable or definite AD, and premature death. They are consistent with the hypothesis that brain hypoperfusion contributes to dementia, possibly to AD pathogenesis, and raise the possibility that the APOE allele ε4 contributes directly to heart valve and myocardial damage.

  11. The role of incentive design in parliamentarian anti-corruption programmes / Bryane Michael, Aare Kasemets

    Index Scriptorium Estoniae

    Michael, Bryane

    2007-01-01

    Motivatsioonidest ja viisidest, kuidas korruptsioonivastased programmid parlamendis aitavad parlamendiliikmetel koguda poliitilist kapitali valijate nõudmiste, poliitilise võitluse, eestkoste jne. haldamisel. Lisatud graafikud, tabelid ja diagramm

  12. Transient unilateral brachial plexopathy and partial Horner's syndrome following spinal anesthesia for cesarean section

    Science.gov (United States)

    Anson, Jonathan A; McQuillan, Patrick M

    2014-01-01

    A healthy 21-year-old primigravida presented for elective cesarean section. At 45 min after intrathecal (IT) injection of bupivacaine, morphine and fentanyl she developed dysphagia, right sided facial droop, ptosis and ulnar nerve weakness. This constellation of signs and symptoms resolved 2 h later. Based on the time course and laterality of her symptoms, as well as the pharmacologic properties of spinal opioids, we believe her symptoms can be attributed to the IT administration of fentanyl. PMID:24803773

  13. William Horner Andrews (1887–1953 – First Professor of Physiology at Onderstepoort

    Directory of Open Access Journals (Sweden)

    D. W. Verwoerd

    2011-04-01

    Full Text Available WHAndrews qualified as a veterinarian in London in 1908 and was recruited soon after, in 1909, by Sir Arnold Theiler to join the staff of the newly established veterinary laboratory at Onderstepoort. After initial studies on the treatment of trypanosomosis and on snake venoms he was deployed by Theiler in 1911 to start research on lamsiekte (botulismat a field station on the farm Kaffraria near Christiana, where he met and married his wife Doris. After a stint as Captain in the SA Veterinary Corps during World War I he succeeded D T Mitchell as head of the Allerton Laboratory in 1918, where he excelled in research on toxic plants, inter alia identifying Matricaria nigellaefolia as the cause of staggers in cattle.Whenthe Faculty ofVeterinary Science was established in 1920 he was appointed as the first Professor of Physiology. After the graduation of the first class in 1924, and due to health problems, he returned to the UK, first to the Royal Veterinary College and then to the Weybridge Veterinary Laboratories of which he became Director in 1927.After his retirement in 1947 he returned to South Africa as a guest worker at Onderstepoort where he again became involved in teaching physiologywhenProf. Quin unexpectedly died in 1950. Andrews died in Pretoria in 1953 and was buried in the Rebecca Street Cemetery.

  14. Asymmetric Horner-Wadsworth-Emmons Reactions with meso-Dialdehydes: Scope, Mechanism, and Synthetic Applications

    DEFF Research Database (Denmark)

    Rein, Tobias; Vares, Lauri; Kawasaki, Ikuo

    1999-01-01

    Asymmetric Homer-Wadsworth-Emmons reactions between chiral phosphonate reagents and various meso-dialdehydes have been investigated. A mechanistic model useful for rationalizing the experimentally observed stereoselectivities is presented. Furthermore; strategies for applying these reactions...

  15. Congenital agenesis of internal carotid artery with ipsilateral Horner presenting as focal neurological symptoms

    Directory of Open Access Journals (Sweden)

    Hosseini H

    2011-01-01

    Full Text Available Wassim Farhat, Rechdi Ahdab, Hassan HosseiniService de Neurologie, Hôpital Henri Mondor, APHP, Faculté de Médecine, Université Paris XII, Créteil, FranceAbstract: Internal carotid artery (ICA agenesis is a rare developmental anomaly and is most frequently asymptomatic, but it may also present as cerebrovascular accidents. The association with Horner’s syndrome is exceptional. We present three cases of agenesis of ICA associated with Horner’s syndrome and hypochromia iridum presenting as focal neurological symptoms. A system of collaterals develops as a consequence of agenesis of the ICA, making the majority of cases asymptomatic. Three types of collateral circulations have been described. These collaterals increase the risk of aneurysm formation and the occurrence of life-threatening subarachnoid hemorrhages. The association of congenital Horner’s syndrome and hypochromia iridum without anhidrosis is highly suggestive of sympathetic pathway injury early in life. Such signs should prompt further diagnostic evaluation to demonstrate the presence of the agenesis of the carotid canal. Early diagnosis is essential to rule out potentially life-threatening associated vascular anomalies.Keywords: carotid artery agenesis, Horner’s syndrome, heterochromia iridum

  16. Bryan McCann. Hello, Hello Brazil. Popular Music in the Making of Modern Brazil. 1st printing 2004

    Directory of Open Access Journals (Sweden)

    Sergio Daniel Ospina

    2010-07-01

    Full Text Available La música popular brasilera en relación con la configuración de la identidad nacional y la modernización del Estado brasilero es, en síntesis, el tema principal del texto escrito por el profesor McCann. Sin embargo, el autor aborda una amplia variedad de tems y asuntos históricos que, vinculados estrechamente con el desarrollo de la música popular brasilera en la primera mitad del siglo xx, permiten analizar global y coherentemente la constitución moderna de Brasil. En resumen, el texto constituye un relato consistente en torno a la convergencia de factores culturales, políticos, económicos, sociales y tecnológicos, entre otros, en el proceso de conformación de la idea de brasileridad, para lo cual la música popular y, con ella, la radio y la industria discográfica aparecen como un eje trasversal del análisis, un eje que es al mismo tiempo un agente dinamizante y un actor dinamizado. Se trata pues de una historia del Estado Novo de Brasil a través de la música o, dicho de otro modo, de una historia de la música popular brasilera a través de la historia de la transición de Brasil hacia la modernidad.

  17. Evaluation of brine disposal from the Bryan Mound site of the Strategic Petroleum Reserve Program. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Hann, R.W. Jr.; Randall, R.E. (eds.)

    1980-12-01

    The purpose of this report is to describe the environmental conditions found by the principal investigators during the predisposal study conducted from September 1977 through February 1980 prior to the start of brine discharge in March 1980. The major areas of investigation are physical oceanography, analysis of the discharge plume, water and sediment quality, nekton, benthos, phytoplankton, zooplankton, and data management. Volume 1 describes the results of the predisposal study, and it is divided into eight chapters entitled: Physical Oceanography, Analsyis of the Discharge Plume, Water and Sediment Quality, Nekton, Benthos, Zooplankton, Phytoplankton, and Data Management. Volume 2 consists of appendices which contain additional supporting data in the form of figures and tables.

  18. Evaluation of brine disposal from the Bryan Mound site of the Strategic Petroleum Reserve Program. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Hann, R.W. Jr.; Randall, R.E. (eds.)

    1980-12-01

    The purpose of this report is to describe the environmental conditions found by the principal investigators during the predisposal study conducted from September 1977 through February 1980 prior to the start of brine discharge in March 1980. The major areas of investigation are physical oceanography, analysis of the discharge plume, water and sediment quality, nekton, benthos, phytoplankton, zooplankton, and data management. Volume 1 describes the results of the predisposal study, and it is divided into eight chapters entitled: Physical Oceanography, Analysis of the Discharge Plume, Water and Sediment Quality, Nekton, Benthos, Zooplankton, Phytoplankton, and Data Management. Volume 2 consists of appendices which contain additional supporting data in the form of figures and tables.

  19. Evaluation of brine disposal from the Bryan Mound site of the Strategic Petroleum Reserve program. Vol. III. Annual report, September 1981-August 1982

    Energy Technology Data Exchange (ETDEWEB)

    Hann, R.W. Jr.; Randall, R.E. (eds.)

    1983-06-01

    The purpose of this report is to describe the findings of the project team during the 12 months of postdisposal study conducted from September 1981 through August 1982. The areas of investigation are benthos, analysis of the discharge plume, data management, nekton, physical oceanography, and water and sediment quality. The specific objectives of this report are: (1) to describe the physical oceanographic and meteorological conditions which have been measured at the offshore diffuser site and in the surrounding waters; (2) to describe the effect of brine discharge on the benthic community in the diffuser site area; (3) to discuss the effect of the brine discharge on the quality of the water and sediment in the vicinity of the diffuser site; (4) to describe the measurement of the areal and vertical extent of the brine plume; and (5) to characterize the effect of brine discharge on the nekton community in the vicinity of the diffuser.

  20. Staff Development for School Improvement: An Illustration.

    Science.gov (United States)

    Edelfelt, Roy A., Ed.

    This document contains 11 papers on school staff development: (1) "The Staff Development for School Improvement Program" (Winifred I. Warnat); (2) "A Teacher's View of a Staff Development Project" (Lynn Kleiman); (3) "Staff Development from the Principal's Perspective" (Dixie Hibner); (4) "Stepping-Stones to Success" (Barbara A. Skone); (5)…

  1. Applying Quality Indicators to Single-Case Research Designs Used in Special Education: A Systematic Review

    Science.gov (United States)

    Moeller, Jeremy D.; Dattilo, John; Rusch, Frank

    2015-01-01

    This study examined how specific guidelines and heuristics have been used to identify methodological rigor associated with single-case research designs based on quality indicators developed by Horner et al. Specifically, this article describes how literature reviews have applied Horner et al.'s quality indicators and evidence-based criteria.…

  2. Hitleri tapmiskatse ekraanil / Timo Diener

    Index Scriptorium Estoniae

    Diener, Timo

    2009-01-01

    Kuidas sündis Bryan Singeri film "Operatsioon "Valküür"", peaosas Tom Cruise. Stsenaariumi autorid Christopher McQuarrie ja Nathan Alexander stsenaariumi sünnist, režissöör Bryan Singer filmivõtetest Saksamaal

  3. 75 FR 16463 - Federal Home Loan Bank Members Selected for Community Support Review

    Science.gov (United States)

    2010-04-01

    ... Federal Credit Union.... Fort Wayne Indiana. Alliance Bank Francesville Indiana. The Friendship State Bank Friendship Indiana. Goshen Community Bank Goshen Indiana. Indiana Business Bank Indianapolis Indiana.... First Star Bank, SSB Bremond Texas. The Bank and Trust of Bryan/College Bryan Texas. Station. First Bank...

  4. 78 FR 78989 - Changes in Flood Hazard Determinations

    Science.gov (United States)

    2013-12-27

    ... Texas Bryan, TX 77803. Avenue, Bryan, TX 77803. Collin, (FEMA Docket No.: B- City of Plano, (12-06- The Honorable Phil Dyer, City Hall, 1520 September 20, 2013 480140 1338). 4168P). Mayor, City of Plano, Avenue K, Plano, TX P.O. Box 860358, Plano, 75074. TX 75086. Collin, (FEMA Docket No.: B- Unincorporated areas The...

  5. The Use of Lego Technologies in Elementary Teacher Preparation

    NARCIS (Netherlands)

    Hadjiachilleos, Stella; Avraamidou, Lucy; Papastavrou, Stavros

    2013-01-01

    The need to reform science teacher preparation programs has been pointed out in research (Bryan and Abell in J Res Sci Teach 36:121-140, 1999; Bryan and Atwater in Sci Educ 8(6):821-839, 2002; Harrington and Hathaway in J Teach Educ 46(4):275-284, 1995). Science teachers are charged with the

  6. 76 FR 61143 - Qualification of Drivers; Exemption Applications; Vision

    Science.gov (United States)

    2011-10-03

    .... Adamczyk, Shaun E. Burnett, Kevin W. Cannon, Daniel W. Eynon, Anton Filic, Mark E. Gessner, Stephen A. Grieser, Michael L. Harrison, Dennis H. Heller, Reginald J. Horner, Eric L. Kinner, Everett H. Logan...

  7. The Fight for the High Ground: The U.S. Army and Interrogation during Operation Iraqi Freedom I, May 2003-April 2004

    Science.gov (United States)

    2009-06-12

    Interrogator In A Tale of Two Cities, Charles Dickens contrasted the horrors of Paris during the French Revolution with ordinary life in law-bound...Fowler, and General Charles A. Horner, "Final Report of the Independent Panel to Review DoD Detention Operations, " August 23, 2004, United States...Tillie K. Fowler, and General Charles A. Horner, "Final Report of the Independent Panel to Review DoD Detention Operations, August 23, 2004

  8. Carotid Artery Dissection and Cerebral Infarction Secondary to Blunt Trauma

    OpenAIRE

    Burcu Gökçe; Â. Kemal Erdemoğlu

    2012-01-01

    Traumatic carotid artery dissection may appear after blunt head or neck trauma. Patients were either asymptomatic or clinically symptoms may include loss of consciousness, hemiparesis, aphasia and Horner syndrome, these typically occurring after an interval of hours to days. Patients were either asymptomatic or clinically symptoms may include headache, transient ischemic attack, stroke, Horner Syndrome and loss of consciousness, these typically occurring after an interval of hours to days. Pr...

  9. Polarity Control and Growth of Lateral Polarity Structures in AlN

    Science.gov (United States)

    2013-05-10

    AlN, lateral polar structures, metal organic chemical vapor deposition Ronny Kirste, Seiji Mita , Lindsay Hussey, Marc Hoffmann, Wei Guo, Isaac Bryan...structures in AlN Ronny Kirste,1 Seiji Mita ,2 Lindsay Hussey,1 Marc P. Hoffmann,1 Wei Guo,1 Isaac Bryan,1 Zachary Bryan,1 James Tweedie,1 Jinqiao Xie,2...and H. X. Jiang, Appl. Phys. Lett. 89(21), 213510–213513 (2006). 2N. Dietz, M. Alevli, R. Atalay, G. Durkaya, R. Collazo, J. Tweedie, S. Mita , and Z

  10. Heliplaat ja jõulukuu kingikott / Immo Mihkelson

    Index Scriptorium Estoniae

    Mihkelson, Immo, 1959-

    2005-01-01

    Jõulukingiks sobilikest heliplaatidest Rod Stewart "The Greatest American Songbook", Cliff Richard "Platinum Collection", Frank Sinatra "Duets and Duets II", Bryan Adams "Anthology", Savage GArden "Truly madly Completely", Dire Straits & Mark Knopfler "Private Investigations"

  11. Jõulueelne tähesadu / Christel Karits

    Index Scriptorium Estoniae

    Karits, Christel, 1966-

    2007-01-01

    Kontsertidest: Ace Of Base 28. nov. Tallinna linnahallis, Enrique Iglesias 30. nov., Foreigner ja AliceCooper 2. dets. ja Joe Cocker 6. dets. Saku Suurhallis, Bryan Adams 5. dets. Eesti Näituste messikeskuses

  12. Plaadid / Margit Tõnson

    Index Scriptorium Estoniae

    Tõnson, Margit, 1978-

    2004-01-01

    Uutest heliplaatidest Embrace "Out of Nothing", Arrested Development "Among The Trees", Kalm, Kristjan "Generalissimus", Bossacucanova "Uma batida diferente", Adams, Bryan "Room Service", "Kasabian", Korn "Greatest Hits. Vol 1", Papa Roach "Getting Away With Murder"

  13. The Hannay-Berry Phase of the Vibrating Ring Gyroscope

    National Research Council Canada - National Science Library

    Andersson, Sean B; Krishnaprasad, P. S

    2004-01-01

    In an analysis published in 1890, G.H. Bryan investigated the retrograde precession of the nodal points in a vibrating, rotating shell and wrote down a formula relating the rate of precession to the rate of rotation...

  14. Accommodating Oversize and Overweight Loads : Instructor and Student Guide

    Science.gov (United States)

    2012-08-01

    This instructor and student guide is designed to guide the instructor in conveying information at the district level concerning Research Project 0-6404 Accommodating Oversize and Overweight Loads. The specific information focuses on the Bryan D...

  15. Üritatakse parimat, aga välja tuleb nagu tavaliselt / Alar Niineväli

    Index Scriptorium Estoniae

    Niineväli, Alar

    2009-01-01

    Bryan Singeri mängufilm "Operatsioon "Valküür"" ("Valkyrie"), peaosas Tom Cruise. Film räägib Claus von Stauffenbergi (1907-1944) poolt juhitud operatsioonist, mille eesmärgiks oli atendaat Adolf Hitlerile

  16. Ajalootund eetilistest natsidest / Jan Kaus

    Index Scriptorium Estoniae

    Kaus, Jan, 1971-

    2009-01-01

    Bryan Singeri mängufilm "Operatsioon "Valküür"" ("Valkyrie"), peaosas Tom Cruise. Film räägib Claus von Stauffenbergi (1907-1944) poolt juhitud operatsioonist, mille eesmärgiks oli atendaat Adolf Hitlerile

  17. Uhke ooberst von Stauffenberg põrus hästi suurelt / Andres Laasik

    Index Scriptorium Estoniae

    Laasik, Andres, 1960-2016

    2009-01-01

    Bryan Singeri mängufilm "Operatsioon "Valküür"" ("Valkyrie"), peaosas Tom Cruise. Film räägib Claus von Stauffenbergi (1907-1944) poolt juhitud operatsioonist, mille eesmärgiks oli atendaat Adolf Hitlerile

  18. DVDD. Alar Niineväli soovitab : "Superman tuleb koju tagasi" / Alar Niineväli

    Index Scriptorium Estoniae

    Niineväli, Alar

    2007-01-01

    Mängufilm "Superman tuleb koju tagasi" ("Superman Returns") : režissöör Bryan Singer : Ameerika Ühendriigid 2006. Osatäitjaid on võrreldud Richard Donneri filmi "Superman" (1978) vastavate tegelastega

  19. 76 FR 25763 - Qualification of Drivers; Exemption Applications; Vision

    Science.gov (United States)

    2011-05-05

    .... Carson, Todd J. Stubb, James Garvin, James McGlown, Larry McKnight, Jr., Tommy Nguyen, Fatos Syla, Bryan... Pulido, Oliver Murphy, Jerome Smalls, Alan Jenkins, Ryan Forsythe, Terry L. Randoll, Edward Joseph...

  20. 76 FR 7907 - Quarterly Publication of Individuals, Who Have Chosen To Expatriate, as Required by Section 6039G

    Science.gov (United States)

    2011-02-11

    ... SAMMY KIN WAN HOLMES PAULA GUNNARD HOOI BRYAN KUEN-YEW HORVATH ALEXANDER S HOWELL JR WARREN RAYMOND...-FREDERIC PETERSON JANE KATHRYN PFAFFINGER MARKUS RICHARD OLIVER PFANDER MARGARET PHILIPP HARALD PHILIPP...

  1. 77 FR 64967 - Senior Executive Service; Performance Review Board

    Science.gov (United States)

    2012-10-24

    ... BROWN, STEPHANIE H BRYAN, WILLIAM N BURROWS, CHARLES W BUTTRESS, LARRY D CADIEUX, GENA E CALBOS, PHILIP... O'KONSKI, PETER J OLENCZ, JOSEPH NMN OLIVER, LEANN M OLIVER, STEPHEN R OSBORN II, ROBERT J OSHEIM...

  2. 75 FR 69160 - Quarterly Publication of Individuals, Who Have Chosen To Expatriate, as Required by Section 6039G

    Science.gov (United States)

    2010-11-10

    ... Alireza Saumweber Helena Maria Schatz John Barkley Scherer Stefan Schmid Oliver Schmidberger Maria A... Sophonpanich Donna Southergill Bryan Taft Speight Feller Senta Speyer Jacques-Paul Fabien Spoliansky Dimitri... Anthony Ying Long Shang Ying Yip Kamchuen Oliver [[Page 69163

  3. Micropropagation of Plectranthus edulis (Vatke) Agnew from ...

    African Journals Online (AJOL)

    SAM

    2014-09-03

    Bryan, 1983). The application of plant tissue culture offers valuable ways to overcome many of the problems that are encountered in natural propagation. Meristem culture can be used alone or in combination with thermotherapy ...

  4. Python Scripts for Automation of Current-Voltage Testing of Semiconductor Devices (FY17)

    Science.gov (United States)

    2017-01-01

    ARL-TR-7923 ● JAN 2017 US Army Research Laboratory Python Scripts for Automation of Current- Voltage Testing of Semiconductor ...Laboratory Python Scripts for Automation of Current- Voltage Testing of Semiconductor Devices (FY17) by Bryan H Zhao Oak Ridge Institute for Science...Testing of Semiconductor Devices (FY17) 5a. CONTRACT NUMBER 1120-1120-99 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) Bryan H Zhao

  5. Ultraviolet Polariton Laser

    Science.gov (United States)

    2015-09-17

    PERFORMING ORGANIZATION REPORT NUMBER 19a. NAME OF RESPONSIBLE PERSON 19b. TELEPHONE NUMBER Michael Gerhold Michael Gerhold, Marc Hoffmann, Alex Franke...Crack Free High Al Content AlGaN/AlN-based Bragg Reflectors with Many Layer Pairs” Marc Hoffmann, Alexander Franke, Milena Bobea, Felix Kaess... Felix Kaess, James Tweedie, Isaac Bryan, Zachary Bryan, Ronny Kirste, Ramon Collazo, Zlatko Sitar, Michael Gerhold Talk 3 – Session T

  6. The Proliferation Of Unmanned Aerial Vehicles And The Threat To The United States

    Science.gov (United States)

    2016-02-10

    to check the Notices To Airmen (NOTAM) before operating their UAVs . Jamming is a viable option for most non- commercial grade UAVs because the...electronicdesign.com/communications/understanding-wireless-range- calculations 26. Bryan Card, The Commercialization of UAVs : How Terrorist Will Be Able To...Bryan. The Commercialization of UAVs : How Terrorist Will Be Able To Utilize UAVs to Attack The United States, 12 November 2014. CBS 11 Local News

  7. Lasing and Longitudinal Cavity Modes in Photo-Pumped Deep Ultraviolet AlGaN Heterostructures

    Science.gov (United States)

    2013-04-29

    NC 27709-2211 15. SUBJECT TERMS AlGaN lasers, optical pumping, longitudinal cavity modes Jinqiao Xie, Seiji Mita , Zachary Bryan, Wei Guo, Lindsay...Lasing and longitudinal cavity modes in photo-pumped deep ultraviolet AlGaN heterostructures Jinqiao Xie,1,a) Seiji Mita ,1 Zachary Bryan,2 Wei Guo,2...Dalmau, B. Moody, R. Schlesser, S. Mita , M. Feneberg, B. Neuschl, K. Thonke, R. Collazo, A. Rice, J. Tweedie, and Z. Sitar, J. Electrochem. Soc. 158

  8. Primary and Secondary Prevention of Behavior Difficulties: Developing a Data-Informed Problem-Solving Model to Guide Decision Making at a School-Wide Level

    Science.gov (United States)

    Ervin, Ruth A.; Schaughency, Elizabeth; Matthews, Amy; Goodman, Steven D.; McGlinchey, Margaret T.

    2007-01-01

    This article focuses on the development and implementation of primary and secondary behavior supports at a schoolwide level. The approach described is consistent with previous efforts to address behavior at a systems level (e.g., G. Sugai, R.H. Horner, & F.M. Gresham, 2002). In this article, we illustrate this process through a school-based…

  9. The importance of perfusion index monitoring in evaluating the ...

    African Journals Online (AJOL)

    The PI values were recorded from the distal end of the 2nd finger of the upper extremity on the side applied with the block at baseline and at 5, 15, 30, 60 and 120 min. The onset time of Horner findings was recorded. The PI values and visual analogue scale (VAS) pain scores were recorded pre-treatment and after 2 weeks.

  10. Effect of whole cottonseed, plus lanolin heat-treated whole ...

    African Journals Online (AJOL)

    Reinhold Publ. Cory., New York, USA. CHALUPA, W., VECCHIARELLI, B., SKLAN, D. & RAMBERG, C.F.,. 1985. Responses of lactating cows to cottonseeds. J. Dairy Sct. 68, 115 (Abstr.). COPPOCK, C.E., LANHAM, J.K., & HORNER, J.L., 1987. A review of the nutritive value and utilization of whole cottonseed, cottonseed.

  11. [3+3] annulation of allylic phosphoryl-stabilized carbanions/phosphorus ylides and vinyl azides: a practice strategy for synthesis of polyfunctionalized anilines.

    Science.gov (United States)

    Liu, Shen; Chen, Wenteng; Luo, Jing; Yu, Yongping

    2014-08-11

    Tandem Michael addition and Witting or Horner-Wadsworth-Emmons olefination initiated [3+3] annulation between vinyl azides and allylic phosphorus ylides or allylic phosphoryl-stabilized carbanions has been developed. This one-pot protocol furnishes highly functionalized anilines in good to excellent yields under mild, room-temperature conditions. A rational mechanism is also proposed.

  12. The Challenge of Synthesizing Oligomers for Molecular Wires

    DEFF Research Database (Denmark)

    Søndergaard, Roar; Krebs, Frederik C

    2011-01-01

    molecules with a molecular length up to 9–10 nm which allow for the introduction of aromatic thioacetate functionality in fully conjugated oligomer systems. Oligomers containing 3–15 phenyl units were synthesized by step wise Horner-Wadsworth-Emmons (HWE) reactions of a bifunctional OPV-monomer, which...

  13. Testing geopressured geothermal reservoirs in existing wells. Final report P. R. Girouard Well No. 1, Lafayette Parish, Louisiana. Volume II. Well test data

    Energy Technology Data Exchange (ETDEWEB)

    1981-01-01

    The following data from the reopening of an abandoned well are presented: reservoir pressure drawdown and buildup data, Institute of Gas Technology test data, Insitute of Gas Technology sample log, reservoir fluid analysis, produced gas/water ratio, chemical analysis procedures, surface flow data, third party sampling and reports, sand detectors charts, and Horner-type buildup data. (MHR)

  14. Saared meis ja meie ümber / Katrin Nielsen

    Index Scriptorium Estoniae

    Nielsen, Katrin

    1998-01-01

    Chaplini kunstikeskuses 17. detsembrini avatud fotonäitusest 'Põhjala saared', kus oma töid eksponeerisid: Absalon Hansen - Fääri saartest, Göte Ask - Gotlandist, Andy Horner - Ahvenamaalt, ning Tartu kunstikooli fotoeriala tudengid oma pilte Naissaarest, Piirissaarest, Abrukast, Manijast, Vormsist ja Vilsandist.

  15. Põhjala fotomuuseumis / Eha Vain

    Index Scriptorium Estoniae

    Vain, Eha

    1999-01-01

    22. apr.-st Tallinna raevangla Fotomuuseumis fotonäitus "Põhjala saared". Fotograafid Göte Ask Gotlandilt, Absalon Hansen Fääri saartelt ja Andy Horner Ahvenamaalt tutvustavad oma töödes kodusaarte loodust; Tartu kunstikooli fototudengid Eesti saarte inimesi ja nende eluolu.

  16. On a new Flying Squirrel from Deli, Sumatra

    NARCIS (Netherlands)

    Jentink, F.A.

    1890-01-01

    Sciuropterus setosus, collected by Horner in the neighborhood of Padang (Sumatra) and described by Temminck in the »Fauna japonica”, seems to be such an extremely rare animal, that the type-specimen — an adult female — is the only individual hitherto observed by collectors and naturalists. Mr.

  17. 78 FR 68422 - Patent Trial and Appeal Board (PTAB) Actions (Formerly Board of Patent Appeals and Interferences...

    Science.gov (United States)

    2013-11-14

    ... additional information should be directed to the attention of Linda Horner, Acting Vice Chief Judge, Patent..., i.e., 35 U.S.C. 134, 135, 306, and 315, to decide ex parte and inter partes appeals and..., the Commissioner for Patents, the Commissioner for Trademarks, and the Administrative Patent Judges...

  18. Social Expectations and Behavioral Indicators in School-Wide Positive Behavior Supports: A National Study of Behavior Matrices

    Science.gov (United States)

    Lynass, Lori; Tsai, Shu-Fei; Richman, Taylor D.; Cheney, Douglas

    2012-01-01

    The three-tiered School-Wide Positive Behavioral Interventions and Supports (SWPBIS) model is now being implemented in more than 13,000 schools in the United States (Horner, Sugai, & Anderson, 2010). One core feature of Tier One of the SWPBIS model is the identification of social expectations and behavior indicators across all school settings.…

  19. Fulltext PDF

    Indian Academy of Sciences (India)

    The so called mathematics including the written number Horner's method for solving polynomial systems (in the hieroglyphic, hieratic and equations was already known to the Chinese demotic notation) goes to Egypt. (The Aztecs very much earlier. of central America also had a system of numerals similar to the Egyptians.) ...

  20. Integrating Proactive Discipline Practices into Codes of Conduct

    Science.gov (United States)

    Fenning, Pamela; Theodos, Jennifer; Benner, Courtney; Bohanon-Edmonson, Hank

    2004-01-01

    The purpose of this article is to advocate for proactive content in discipline codes of conduct. Proactive discipline codes integrate Positive Behavior Support (PBS) strategies (Sugai & Horner, 2002) and attend to the academic needs of students (McEvoy & Welker, 2000). Proactive discipline codes of conduct have meaningful participation by key…

  1. Computational modelling for dry-powder inhalers

    NARCIS (Netherlands)

    Kröger, Ralf; Woolhouse, Robert; Becker, Michael; Wachtel, Herbert; de Boer, Anne; Horner, Marc

    2012-01-01

    Computational fluid dynamics (CFD) is a simulation tool used for modelling powder flow through inhalers to allow optimisation both of device design and drug powder. Here, Ralf Kröger, Consulting Senior CFD Engineer, ANSYS Germany GmbH; Marc Horner, Lead Technical Services Engineer, Healthcare,

  2. Subclavian Aberrant right artery aneurysm causing a common carotid trunk: findings in CT and MR

    International Nuclear Information System (INIS)

    Quiroga Gomez, S.; Alvarez Castells, A.; Dominguez Oronoz, R.; Gifre Bassols, L.

    1995-01-01

    We present a case of aberrant right subclavian artery aneurysm causing dysphagia, dysphonia, and Claude-Bernard-Horner's syndrome by compression of adjacent structures, initially diagnosed with plain chest radiography and barium-swallow examination. CT and MRI confirmed this vascular anomaly and showed a common carotid trunk, associated to aberrant subclavian artery in 29% of cases. (Author) 10 refs

  3. Science Opens Doors

    Science.gov (United States)

    Smyth, Steve; Smyth, Jen

    2016-01-01

    Science Opens Doors is the creation of Clive Thompson of the Horners' Livery Company. The Science Opens Doors project philosophy is strongly based upon the King's College London ASPIRES project, which established that children like doing science in junior school (ages 7-11), but that by the age of 12-14 they are firmly against becoming scientists.…

  4. The Effects of Peer Training on the Social Interactions of Children with Autism Spectrum Disorders

    Science.gov (United States)

    Krebs, Mindy Leigh; McDaniel, D. Mike; Neeley, Richard A.

    2010-01-01

    This study investigated the effects of peer training intervention on social interactions of two participants with autism spectrum disorders (ASD) and four typically developing peers. A multiple probe (Horner & Baer, 1978) across tasks, replicated across participants design, was used to evaluate these effects. Prior to data collection, a task…

  5. Sen udvikling af carotisdissektion efter trafikuheld

    DEFF Research Database (Denmark)

    Hjort, Mathias; Ljungberg, Merete; Jakobsen, Linda

    2011-01-01

    This case study discusses the clinical manifestations of carotid dissection in a 58-year-old male admitted with minor injuries after a traffic accident. Within 24 hours the patient developed Horner syndrome, hoarseness and possible facial nerve palsy. A CT-angiogram showed dissection of the left...

  6. Examination of the Evidence Base for Using Visual Activity Schedules with Students with Intellectual Disability

    Science.gov (United States)

    Spriggs, Amy D.; Mims, Pamela J.; van Dijk, Wilhelmina; Knight, Victoria F.

    2017-01-01

    We conducted a comprehensive review of the literature to establish the evidence base for using visual activity schedules (VAS) with individuals with intellectual disability. Literature published after 2005 was evaluated for quality using the criteria developed by Horner et al.; a total of 14 studies were included as acceptable. Findings suggest…

  7. Synthesis of pyrazole containing α-amino acids via a highly regioselective condensation/aza-Michael reaction of β-aryl α,β-unsaturated ketones

    NARCIS (Netherlands)

    Gilfillan, Lynne; Artschwager, Raik; Harkiss, Alexander H.; Liskamp, Rob M J; Sutherland, Andrew

    2015-01-01

    A synthetic approach for the preparation of a new class of highly conjugated unnatural α-amino acids bearing a 5-arylpyrazole side-chain has been developed. Horner-Wadsworth-Emmons reaction of an aspartic acid derived β-keto phosphonate ester with a range of aromatic aldehydes gave β-aryl

  8. Can School-Wide Positive Behavior Support Be an Evidence-Based Practice?

    Science.gov (United States)

    Renshaw, Tyler L.; Young, K. Richard; Caldarella, Paul; Christensen, Lynnette

    2008-01-01

    Researchers invested in school-wide positive behavior support (SWPBS) have been attempting to answer an important question: Is SWPBS an evidence-based practice (EBP; e.g., Sugai & Horner, 2007)? Given the context of educational policy, this question appears to be reasonable, as its answer could significantly influence funding and adoption of SWPBS…

  9. Sustaining SWPBIS for Inclusive Behavior Instruction. Research to Practice Brief

    Science.gov (United States)

    National Center on Schoolwide Inclusive School Reform: The SWIFT Center, 2017

    2017-01-01

    Inclusive Behavior Instruction features universal or schoolwide positive behavior interventions and supports in a multi-tiered system of support. Many schools use School-Wide Positive Behavior Intervention and Supports (SWPBIS; Horner et al., 2009) for this purpose. Andreau, McIntosh, Ross, and Kahn describe thirteen characteristics of…

  10. The Influence of Horticultural Activities on Preschool-Aged Children's Peer Interaction and Task Engagement in an Inclusive Setting

    Science.gov (United States)

    Wiedeman-Rouse, Teri

    2012-01-01

    There is great concern by teachers, school administrators and parents regarding the increase in the number of preschool-aged students who exhibit challenging behavior in early childhood settings (Benedict, Horner & Squires 2007), need for early intervention procedures that focus on young children who may be at risk for developing patterns of…

  11. Novel route to 5-position vinyl derivatives of thiolactomycin: Olefination vs. deformylation

    Science.gov (United States)

    Kim, Pilho; Barry, Clifton E.; Dowd*, Cynthia S.

    2006-01-01

    Vinyl and diene derivatives of thiolactomycin have been prepared via Horner-Wadsworth-Emmons olefination from protected 5-formyl-3,5-dimethylthiotetronic acid. Several 4-position protecting groups and a variety of phosphonates were evaluated, with MOM protection and β-ketophosphonates yielding the highest ratio of desired product to deformylated product. PMID:16699591

  12. NIGERIAN VETERINARY JOURNAL

    African Journals Online (AJOL)

    ADEYEYE

    tick (Ixodes ricinus) distribution during the summer season in. Richmond Park, London. Bioscience. Horizons. pp 1-9. HESTERBERG, U.W., BAGNALL, R.,. PERRETT, K., HORNER, R. and. GUMMOW, B. (2007). A questionnaire survey of perceptions and preventive measures related to animal health amongst cattle owners.

  13. Total synthesis of aquatolide

    NARCIS (Netherlands)

    Saya, J.M.; Vos, K.; Klein Nijenhuis, R.A.; van Maarseveen, J.H.; Ingemann, S.; Hiemstra, H.

    2015-01-01

    A total synthesis of the sesquiterpene lactone aquatolide has been accomplished. The central step is an intramolecular [2 + 2]-photocycloaddition of an allene onto an alpha,beta-unsaturated delta-lactone. Other key steps are an intramolecular Horner-Wadsworth-Emmons reaction to close the lactone and

  14. ISSN 2073-9990 East Cent. Afr. J. surg

    African Journals Online (AJOL)

    Valued eMachines Customer

    infection or inflammation in the middle ear cleft, which could be through the eustachian tube to the middle .... A 10-months old female child was seen in the ENT clinic as a case of referral from the paediatric clinic on .... patients had ophthalmic complications, such as papilledema, Horner syndrome, and proptosis19. In our.

  15. Inclusive Education National Research Advocacy Agenda: A Call to Action

    Science.gov (United States)

    Morningstar, Mary E.; Allcock, Heather C.; White, Julia M.; Taub, Deborah; Kurth, Jennifer A.; Gonsier-Gerdin, Jean; Ryndak, Diane L.; Sauer, Janet; Jorgensen, Cheryl M.

    2016-01-01

    The TASH Inclusive Education National Committee responded to Horner and Dunlap's call to ensure that future research integrates inclusive values with strong science by developing an inclusive education national research advocacy agenda. Qualitative methods were implemented to answer three questions: (a) "What is the state of inclusive…

  16. Contribution de la microscopie électronique à balayage ...

    African Journals Online (AJOL)

    user

    [6] - M.A. WEBB and H.J. ARNOTT, A survey of calcium oxalate crystals and other mineral inclusions in seeds. Scan Electron Micros3 (1982) 1109-1131. [7] - H. ILARSLAN, R.G. PALMER, J. IMSANDE and H.T. HORNER, Calcium oxalate crystals in developing seeds of soybean. Annales of Botany. 88 (2001) 243-257.

  17. Interscalene block for shoulder surgery

    African Journals Online (AJOL)

    2011-06-15

    Jun 15, 2011 ... Fracture dislocation of the shoulder is a common musculoskeletal injury following road traffic accident. Peripheral ... Fracture luxation de l'épaule est une commune blessures musculo-squelettiques suite route trafic accident. Périphériques nerf .... vertebral artery injection, pneumothorax, Horner's syndrome ...

  18. Synthesis of 3-fluorofuran-2(5H)-ones based on Z-E photoisomerisation and cyclisation of 2-Fluoro-4-hydroxybut-2-enoates

    Czech Academy of Sciences Publication Activity Database

    Pomeisl, Karel; Čejka, J.; Kvíčala, J.; Paleta, O.

    -, č. 35 (2007), s. 5917-5925 ISSN 1434-193X Institutional research plan: CEZ:AV0Z40550506 Keywords : Horner-Wadsworth-Emmons * phosphonates * irradiation * photoisomerisation * butenolide Subject RIV: CC - Organic Chemistry Impact factor: 2.914, year: 2007

  19. The vibration of a layered rotating planet and Bryan’s effect

    CSIR Research Space (South Africa)

    Shatalov, MY

    2011-12-01

    Full Text Available of Bryan?s effect appear to have lain dormant for about 75 years, reappearing in connection with a resonator gyroscope in 1965 in the small Delco Wakefield, MA, USA R&D facility, according to (Rozelle, 2009). Rozelle states that the resonator gyroscope... of the ith layer respectively, i = 1, ? ? ?,N. We convert to spherical coordinates Or?? as depicted in Figure ??, where we have adopted the notation of (Spiegel, 1967). Consider the position of rest P(r, ?, ?) of a vibrating particle in the ith layer where...

  20. Exploring the Needs of Students Experiencing Homelessness from School Counselors' Perspectives

    Science.gov (United States)

    Havlik, Stacey A.; Brady, Jennifer; Gavin, Kathleen

    2014-01-01

    An increased understanding of the needs of students experiencing homelessness will better inform educational and clinical practices to ensure student success. Through an analysis of survey data using the Knowledge and Skills with Homeless Students Survey (Gaenzle & Bryan, 2013), this exploratory study applied a mixed methods approach to assess…

  1. Modelling primate control of grasping for robotics applications

    CSIR Research Space (South Africa)

    Kleinhans, A

    2014-09-01

    Full Text Available -1 European Conference on Computer Vision (ECCV) Workshops, Zurich, Switzerland, 7 September 2014 Modelling primate control of grasping for robotics applications Ashley Kleinhans1, Serge Thill2, Benjamin Rosman1, Renaud Detry3 & Bryan Tripp4 1 CSIR...

  2. Browse Author Index

    African Journals Online (AJOL)

    Items 151 - 192 of 192 ... Okey Onunkwo, R · Okonkwo, Obi Peter · Okoronye, I · Okpalaobi, B.N · Okpalaobi, BN · Okukpon-Adesanya, Irekpitan · Olatoke San, J.O. · Olekanma, Bryan · Olokooba, SM · Olubiyi, Ifeoluwa Ayokunle · Oluwadayisi, Akin Olawale ... S. Solahudeen, Isa Olawale · St. Emmanuel, Simon-Peter Ayooluwa ...

  3. 1635-IJBCS-Article-Youssao Issaka

    African Journals Online (AJOL)

    hp

    biologiques pour le consommateur appliquée à l'abattoir. Renc. Rech. Ruminants, 13: 411-414. Gill CO, Mcjinnis JC, Bryan J. 1998. Microbial contamination of meat during the skinning of beef carcass hindquarters at three slaughtering plants. Int. J. Food. Microbiol., 42: 175-184. INSAE (Institut National de la Statistique et.

  4. Sound / Märt Milter

    Index Scriptorium Estoniae

    Milter, Märt

    1998-01-01

    Uutest plaatidest : Billie "Honey To The B", Mainstream "S/T",Lauryn Hill "The Miseducation Of", Babylon Zoo "King Kong Groover", Bryan Adams "On A Day Like Today", Candlebox "Happy Pills", Cher "Believe", Beautiful South "Quench", Bruce Dickinson "The Chemical Wedding", Vangelis "El Greco"

  5. Indigenous Knowledges and the Story of the Bean

    Science.gov (United States)

    Brayboy, Bryan McKinley Jones; Maughn, Emma

    2009-01-01

    In this article, Bryan McKinley Jones Brayboy and Emma Maughn explore epistemic tensions within an Indigenous teacher preparation program where students question Western systems for creating, producing, reproducing, and valuing knowledge. Grounding their argument in a rich understanding of Indigenous Knowledge Systems, the authors advocate for an…

  6. Reconsidering the Summer Residence: The City-Text, Historical Commemoration and Banal Settler Geography

    Science.gov (United States)

    Smith, Bryan

    2017-01-01

    Author Bryan Smith agrees that critiques of Sir John A. Macdonald, and Cornwallis as unworthy of public commemoration are warranted and necessary, particularly as each was instrumental in cementing settler-colonial projects of dominion and erasure of Indigenous populations. However, he observes that each figure is but one point (or multiple) in…

  7. The influence of roughage on the digestibility of whole maize grain ...

    African Journals Online (AJOL)

    age, as successfully implemented by Hixon, Hatfield & Lamb. (1976); Fain, Backus, Johnson, Anderson, Bryan & Robinson. (1979); Lofgreen (1980); fuskov, .... LIEBENBERG, L.H.P., MEISSNER, H.H. & PIENAAR, J.P.,. 1979. Disappearance of processed maize grain in the rumen. 5. Afr. J. Anim. 9ci.9,227. LOFCREEN, G.P. ...

  8. Substance Testing in the Fire Service: Making Public Safety a Matter of National Policy

    Science.gov (United States)

    2014-03-01

    Bryan, 1998, pp. 28–32). A chemically dependent person may be protected as handicapped under federal and many state laws. Past substance use is...tend to be inconsistent and unpredictable. Insidious costs embed themselves in the factors related to size and geography , and do tend to be scalable

  9. Modelling anisotropic water transport in polymer composite ...

    Indian Academy of Sciences (India)

    Author Affiliations. Bryan Pajarito1 2 Masatoshi Kubouchi1 Saiko Aoki1. Department of Chemical Engineering, Tokyo Institute of Technology, 2-12-1 S4-5, Ookayama, Meguro-ku, Tokyo 152 8552, Japan; Department of Chemical Engineering, University of Philippines, Diliman, Quezon City 1101, Philippines ...

  10. School-Based Communities of Practice as Mechanisms for Standards-Based Mathematics Curriculum Implementation

    Science.gov (United States)

    Hodges, Thomas E.; Jong, Cindy

    2014-01-01

    The authors drew upon Remillard and Bryans' categorization of curriculum use in observating two middle-grade teachers' integration of Standards-based curriculum materials produced by the National Council of Teachers of Mathematics. Each teacher participated in a two-year professional development program focused on increasing content knowledge and…

  11. Tragedy and the Meaning of School Shootings

    Science.gov (United States)

    Warnick, Bryan R.; Johnson, Benjamin A.; Rocha, Samuel

    2010-01-01

    School shootings are traumatic events that cause a community to question itself, its values, and its educational systems. In this article Bryan Warnick, Benjamin Johnson, and Samuel Rocha explore the meanings of school shootings by examining three recent books on school violence. Topics that grow out of these books include (1) how school shootings…

  12. Gun Violence and the Meaning of American Schools

    Science.gov (United States)

    Warnick, Bryan R.; Kim, Sang Hyun; Robinson, Shannon

    2015-01-01

    In the United States, targeted school shootings have become a distinct genre of violence. In this essay, Bryan Warnick, Sang Hyun Kim, and Shannon Robinson examine the social meanings that exist in American society that might contribute to this phenomenon, focusing on the question: "Why are schools conceptualized as appropriate places to…

  13. Automatic selective feature retention in patient specific elastic surface registration

    CSIR Research Space (South Africa)

    Jansen van Rensburg, GJ

    2011-01-01

    Full Text Available . An intelligent mesh morphing strategy where dissimilar feature surfaces can be extracted automatically also greatly reduces the amount of user input required. REFERENCES [1] R. Bryan, P.S. Mohan, A. Hopkins, F. Galloway, M. Taylor and P. Nair, Statitical...

  14. Research Matters/Flip the Script on Fate Control

    Science.gov (United States)

    Goodwin, Bryan

    2016-01-01

    In this article, Bryan Goodwin reflects on a Johns Hopkins University study from 1966 that at that time sent shock waves across America. The report's sober conclusion was that: "Schools provide no opportunity at all" to bring impoverished and minority students up to the starting line. Rather, schools allow them to "fall farther…

  15. 76 FR 40815 - Changes in Flood Elevation Determinations

    Science.gov (United States)

    2011-07-12

    ...). October 29, 2010; Mayor, City of Oxford, The Anniston Star. P.O. Box 3383, Oxford, AL 36203. Calhoun (FEMA... 1165). of Calhoun County October 29, 2010; Commissioner, Calhoun (10-04-2692P). The Anniston Star... Broad Street, Winder, GA 30680. Bryan (FEMA Docket No.: B- City of Richmond Hill November 3, 2010; The...

  16. Finding your Soulmate: Homosexual and heterosexual age preferences in online dating

    NARCIS (Netherlands)

    Conway, J.R.; Noë, N.; Stulp, G.; Pollet, T.V.

    2015-01-01

    Heterosexual age preferences have been extensively studied by evolutionary psychologists, social psychologists, and demographers. Much less is known about such preferences in homosexual men and women. Around two decades ago, D. T. Kenrick, R. C. Keefe, A. Bryan, A. Barr, and S. Brown (1995) examined

  17. Заговорщиков погубила растерянность / Борис Тух

    Index Scriptorium Estoniae

    Тух, Борис, 1946-

    2009-01-01

    Ameerika-Saksa 2008.a. ajalooline mängufilm-põnevik "Operatsioon "Valküür" ("Valkyrie") Hitlerile 1944.a. sooritatud ebaõnnestunud atendaadist, režissöör Bryan Singer, Claus von Stauffenbergi rollis Tom Cruise

  18. Hitleri atendaadi kavandajad / jaanus Noormets

    Index Scriptorium Estoniae

    Noormets, Jaanus

    2007-01-01

    Adolf Hitlerile 1944. aastal toimunud atendaadist rääkivast Bryan Singeri mängufilmist "Valküürid" ("Valkyrie"), kus ooberst Claus von Stauffenbergi mängib näitleja Tom Cruise. Lisatud vandenõulaste grupipilt, kus on näitlejad oma rollides. Film esilinastub 2008.a. suvel

  19. Connect the Book. Martin's Big Words: The Life of Dr. Martin Luther King, Jr.

    Science.gov (United States)

    Brodie, Carolyn S.

    2005-01-01

    In honor of Martin Luther King, Jr. Day, this month's featured book is "Martin's Big Words: The Life of Dr. Martin Luther King, Jr." The book was written by Doreen Rappaport and illustrated by Bryan Collier (Jump at the Sun, 2001. 40p. ISBN 0786807148). This pictorial biography of the world-renowned civil rights leader has one of the most striking…

  20. Geology, climate, land, and water quality [chapter 4

    Science.gov (United States)

    Douglas G. Fox; Roy Jemison; Deborah Ulinski Potter; H. Maurice Valett; Ray Watts

    1995-01-01

    The Middle Rio Grande is part of the chain of structural basins, known as the Rio Grande depression, that extends from the San Luis Valley in Colorado to El Paso, Texas, and through which the Rio Grande flows (Chapin and Seager 1975). Bryan (1938) is credited with designating this reach as the Rio Grande "depression," because of his early research and the...

  1. "Piisab mul korraks ära käia, kui mõni õnnetus juhtub..." / Alar Niineväli

    Index Scriptorium Estoniae

    Niineväli, Alar

    2006-01-01

    Legendaarne fantastiline seiklusfilm "Superman : The Movie" (1978) on eeskujuks ja aluseks uuele sama koomiksi ainelisele mängufilmile "Superman tuleb tagasi" ("Superman Returns") : režissöör Bryan Singer : nimiosas kunagisele nimiosalisele Christopher Reeve'le sarnanev Brandon Routh : Ameerika Ühendriigid 2006

  2. See on lind... See on lennuk... See on Superman! / Andris Feldmanis

    Index Scriptorium Estoniae

    Feldmanis, Andris, 1982-

    2006-01-01

    Legendaarne fantastiline seiklusfilm "Superman : The Movie" (1978) on eeskujuks ja aluseks uuele sama koomiksi ainelisele mängufilmile "Superman tuleb tagasi" ("Superman Returns") : režissöör Bryan Singer : nimiosas kunagisele nimiosalisele Christopher Reeve'le sarnaneda üritav Brandon Routh : Ameerika Ühendriigid 2006

  3. Uus Superman : Brandon Routh / Triin Thalheim

    Index Scriptorium Estoniae

    Thalheim, Triin, 1982-

    2006-01-01

    Legendaarne fantastiline seiklusfilm "Superman : The Movie" (1978) on eeskujuks ja aluseks uuele sama koomiksi ainelisele mängufilmile "Superman tuleb tagasi" ("Superman Returns") : režissöör Bryan Singer : nimiosas kunagisele nimiosalisele Christopher Reeve'le sarnanev Brandon Routh : Ameerika Ühendriigid 2006

  4. 70 let supermenskoi vlasti / Nikolai Karajev

    Index Scriptorium Estoniae

    Karajev, Nikolai, 1978-

    2006-01-01

    Legendaarne fantastiline seiklusfilm "Superman : The Movie" (1978) on eeskujuks ja aluseks uuele sama koomiksi ainelisele mängufilmile "Superman tuleb tagasi" ("Superman Returns") : režissöör Bryan Singer : nimiosas kunagisele nimiosalisele Christopher Reeve'le sarnaneda üritav Brandon Routh : Ameerika Ühendriigid 2006

  5. Uboinaja sila

    Index Scriptorium Estoniae

    2006-01-01

    Legendaarne fantastiline seiklusfilm "Superman : The Movie" (1978) on eeskujuks ja aluseks uuele sama koomiksi ainelisele mängufilmile "Superman tuleb tagasi" ("Superman Returns") : režissöör Bryan Singer : nimiosas kunagisele nimiosalisele Christopher Reeve'le sarnanev Brandon Routh : Ameerika Ühendriigid 2006

  6. Regional Studies with Broadband Data Array Analysis of Regional Pn and Pg Wavefields from the Nevada Test Site.

    Science.gov (United States)

    1991-05-22

    Southern Methodist University Duke University Dallas, TX 75275 Durham, NC 27706 Prof. Bryan Isacks Dr. Randolph Martin, III Cornell University New...Office 320 21st Street N.W Attn: NVCG Washington, DC 20451 P.O. Box 98539 Las Vegas, NV 89193 Dr. Carl Newton Dr. George Rothe Los Alamos National

  7. A Multichannel Processing Approach to Real Time Network Detection, Phase Association and Threshold Monitoring

    Science.gov (United States)

    1989-05-31

    Saint Louis, MO 63156 Dr. Keith L. McLaughlin Professor Bryan Isacks S-CUBED, Cornell University A Division of Maxwell Laboratory Dept of Geological...CA 94550 (2 copies) Los Alamos National Laboratory Dr. Carl Newton Los Alamos, NM 87545 Los Alamos National Lab. Ms. Ann Kerr P.O. Box 1663 DARPA/NMRO

  8. The Transition to the Elastic Regime in the Vicinity of an Underground Explosion

    Science.gov (United States)

    1990-11-18

    Prof. Bryan Isacks Dr. Randolph Martin, III Cornell University New England Research, Inc. Department of Geological Sciences 76 Olcott Drive SNEE Hall...6001 Washington, DC 20451 Dr. Carl Newton Dr. Alan S. Ryall, Jr. Los Alamos National Laboratory DARPA/NMRO P.O. Box 1663 1400 Wilson Boulevard Mail Stop

  9. P sub n from the Nevada Test Site

    Science.gov (United States)

    1988-12-15

    of Maxwell Laboratory Saint Louis University P.O. Box 1620 Saint Louis, MO 63156 La Jolla, CA 92038-1620 Professor Bryan Isacks Professor William...Lab Dr. James Hannon P.O. Box 808, L-205 Lawrence Livermore Nat𔃻 Lab. Livermore, CA 94550 (2 copies) P.O. Box 808 Livermore, CA 94550 Dr. Carl Newton

  10. Nuclear Monitoring Research at the Center for Seismic Studies

    Science.gov (United States)

    1991-05-13

    Southern Methodist University Duke University Dallas, TX 75275 Durham, NC 27706 Prof. Bryan Isacks Dr. Randolph Martin, III Cornell University New...320 21st Street N.W Attn: NVCG Washington, DC 20451 P.O. Box 98539 Las Vegas, NV 89193 Dr. Carl Newton Dr. George Rothe Los Alamos National

  11. SH Wave Scattering from a Sinusoidal Grating

    Science.gov (United States)

    1989-08-01

    63156 Dr. Zoltan A. Der Prof. Bryan Isacks ENSCO, Inc. Cornell University 5400 Port Royal Road Department of Geological Sciences Springfield, VA...L-205 Attn: NVCG Livermore, CA 94550 P.O. Box 98539 Las Vegas, NV 89193 Dr. Carl Newton Dr. George Rothe Los Alamos National Laboratory HQ AFTAC/TGR

  12. The ML Scale in Norway

    Science.gov (United States)

    1990-05-31

    University 314 Montgomery StreetSt. Louis, MO 63156 Alexandria, VA 22314 Prof. Bryan Isacks Prof. Peter Malin Cornell University University of California...Laboratory HQ DNA, Nevada Operations Office P.O. Box 808, L-205 Attn: NVCG Livermore, CA 94550 P.O. Box 98539 Las Vegas, NV 89193 Dr. Carl Newton Los Alamos

  13. The Stability of RMS Lg Measurements and their Potential for Accurate Estimation of the Yields of Soviet Underground Nuclear Explosions

    Science.gov (United States)

    1990-02-28

    Atmospheric Sciences San Diego State University St. Louis University San Diego, CA 92182 St. Louis, MO 63156 Prof. Bryan Isacks Prof. Peter Malin...808, L-205 Atm: NVCG Livermore, CA 94550 P.O. Box 98539 Las Vegas, NV 89193 Dr. Carl Newton Dr. George Rothe Los Alamos National Laboratory HQ AFTAC

  14. Broadband Studies of Seismic Sources at Regional and Teleseismic Distances Using Advanced Time Series Analysis Methods

    Science.gov (United States)

    1990-02-01

    St. Louis University San Diego, CA 92182 St. Louis, MO 63156 -1- Prof. Bryan Isacks Prof. Peter Malin Cornell University University of California at...94550 P.O. Box 98539 Las Vegas, NV 89193 Dr. Carl Newton Dr. George Rothe Los Alamos National Laboratory HQ AFTAC/TGR P.O. Box 1663 Patrick AFB, FL 32925

  15. Nonlinear Attenuation Mechanism in Salt at Moderate Strain Based on Salmon Data.

    Science.gov (United States)

    1988-12-01

    Professor Bryan Isacks Professor William Menke Cornell University Lamont-Doherty Geological Observatory Dept of Geological Sciences of Columbia University...Livermore, CA 94550 Dr. Carl Newton Los Alamos National Lab. Paul Johnson P.O. Box 1663 ESS-4, Mail Stop J979 Mail Stop C335, Group E553 Los Alamos

  16. Wave Propagation in Laterally Varying Media: A Model Expansion Method

    Science.gov (United States)

    1991-05-01

    University Dallas, TX 75275 Durham, NC 27706 Prof. Bryan Isacks Dr. Randolph Martin, III Cornell University New England Research, Inc. Department of...320 21st Street N.W An: NVCG Washington, DC 20451 P.O. Box 98539 Las Vegas, NV 89193 Dr. Carl Newton Dr. George Rothe Los Alsmos National Laboratory HQ

  17. 47 CFR 90.614 - Segments of the 806-824/851-869 MHz band for non-border areas.

    Science.gov (United States)

    2010-10-01

    ...) SAFETY AND SPECIAL RADIO SERVICES PRIVATE LAND MOBILE RADIO SERVICES Regulations Governing Licensing and... farther then 110 km (68.4 miles) from the U.S./Mexico border and 140 km (87 miles) from the U.S./Canadian..., Baker, Baldwin, Banks, Barrow, Bartow, Ben Hill, Berrien, Bibb, Bleckley, Brantley, Brooks, Bryan...

  18. Evaluating Outcomes from Stakeholders' Perception: Evidence from ...

    African Journals Online (AJOL)

    2016-10-02

    Oct 2, 2016 ... The need for the appreciation of values and knowledge diversity has contributed to the increasing ... Outcome Perception Index (OPI) was developed to assess stakeholders' perception of the extent to which the ..... Consumer Price Index of Bryan and Cecchetti (1993); the Economic Security Index designed ...

  19. 21. sajandi organisatsioon / Vello Rääk

    Index Scriptorium Estoniae

    Rääk, Vello

    2006-01-01

    Mõtteid McKinsey konsultantide Lowell L. Bryan ja Claudia Joyce väljaandes McKinsey Quarterly, 2005, nr. 3 ilmunud artiklist "The 21st Century Organization", mis käsitleb teadmustöötajate produktiivsuse olukorda ning selle tõstmist

  20. Kuula. Põhjatähe valgus / Mart Juur

    Index Scriptorium Estoniae

    Juur, Mart, 1964-

    2007-01-01

    Islandi lauljast Björk Gudmundsdottirist ja tema sooloplaadist "Volta". Heliplaatidest: Bryan Ferry "Dylanesque", Kukerpillid "Eesti kullafond. 72 parimat laulu", Cibo Matto "Pom Pom: The Essential Cibo Matto", The Doors "The Very Best Of", XXI Sajandi Orkester "Kaheksa", Macy Gray "Big"

  1. 78 FR 70027 - Senior Executive Service; Performance Review Board

    Science.gov (United States)

    2013-11-22

    ..., JOHN D. BRESE, ROBERT F. BROTT, MATTHEW J. BROWN, DAVID S. BROWN, FRED L. BROWN, STEPHANIE H. BRYAN..., STEPHEN C. O'CONNOR, THOMAS J. ODER, JOSEPH M. O'KONSKI, PETER J. OLENCZ, JOSEPH NMN OLIVER, LEANN M. OLIVER, STEPHEN R. ORTIZ, DAVID S. OSHEIM, ELIZABETH L. OWENDOFF, JAMES M. PAVETTO, CARL S. PAYNE, JANIE...

  2. Paul Henry Latimer (1925-2011): discoverer of selective scattering in photosynthetic systems.

    Science.gov (United States)

    Latimer, Margaret Gwyn; Bannister, Thomas T; Govindjee

    2017-10-01

    We provide here a brief tribute to Paul Henry Latimer (November 25, 1925 to October 1, 2011), a dedicated biological physicist, discoverer of selective scattering in biological systems, a wonderful teacher, husband, and father. We provide here a glimpse of his personal and professional life, including reminiscences from F. Dudley Bryant, Dan A. Cross, Bobby E. Pyle, Bryan L. Seiber, and Bruce A. Seiber.

  3. Student Rights, Clarence Thomas, and the Revolutionary Vision of Education

    Science.gov (United States)

    Warnick, Bryan R.; Rowe, Bradley; Kim, Sang Hyun

    2009-01-01

    In his concurring opinion to the 2007 U.S. Supreme Court decision, "Morse v. Frederick," Justice Clarence Thomas argues that the "Tinker" decision, which granted students constitutional rights in public schools, should be overturned on originalist grounds. In this essay, Bryan Warnick, Bradley Rowe, and Sang Hyun Kim make the case that Thomas's…

  4. Important techniques in today's biomedical science research that ...

    African Journals Online (AJOL)

    olayemitoyin

    PhD's include anatomy, physiology, biochemistry, microbiology, pathology, and pharmacology. As our body of knowledge expands, the need for more subject areas for PhD's ..... Princeton, NJ, The Robert Wood Johnson. Foundation. Bryan GT (1994). The role and responsibility of the dean in promoting curricular innovation.

  5. Programa De Educacion Interamericana.

    Science.gov (United States)

    Texas A and M Univ., College Station.

    PROGRAMA DE EDUCACION INTERAMERICANA is a project of Texas A&M University in liaison with the Bryan Independent School District. The objectives of the program are to improve the knowledge and understanding of Texas teachers and students about other American cultures. Study teams of educators research and, in midsummer, travel to selected…

  6. A Hundred Years Ago: Crusaders vs. Conservatives in a Furious Campaign.

    Science.gov (United States)

    Social Education, 1996

    1996-01-01

    Investigates the issues, candidates, and political climate of the 1896 presidential election. The Democratic Party candidate, William Jennings Bryan, espoused a Populist platform attacking big business, protectionism, and the gold standard. William McKinley, the Republican Party, pro-business candidate easily won the election. Includes cartoons…

  7. Immigrants and Refugees: The Caribbean and South Florida. Occasional Papers Series, Dialogues #2.

    Science.gov (United States)

    Florida International Univ., Miami. Latin American and Caribbean Center.

    Six papers on Caribbean immigrants and refugees in south Florida are presented in this document. Their titles (and authors) are: (1) "Let's Welcome the Refugees" (Bryan O. Walsh); (2) "The Haitians and America's 'Pull'" (Anthony P. Maingot); (3) "Estimates of Haitian International Migration for the 1950-1980 Period"…

  8. Download this PDF file

    African Journals Online (AJOL)

    User

    2015-12-02

    Dec 2, 2015 ... The study of zooplankton as bioindicators of water quality in Jakara Dam was carried out for a period of 12 months (March,2013-February ... studies to protect natural ecosystems, which include preservative measures. Bioindicators of .... described by Bryan (1974). DO (mg/L) = Na2S2O2 .5H2O and N/8 ...

  9. Impact of partially treated sewage effluent on the water quality of ...

    African Journals Online (AJOL)

    Michael Horsfall

    Rivers, streams, lakes, oceans and seas appear to be the most recipient of industrial and municipal wastes globally (Defew et al., 2004; Bryan, 1976). Industries are the major sources of pollution in all environments and depending on the type of industry, various levels of pollutants can be discharged into the environment.

  10. (CaIman) (Crustacea, Decapoda, Branchiura)

    African Journals Online (AJOL)

    1994-01-25

    Jan 25, 1994 ... was also found that more copper accumulated in the ovary than in the testis per unit weight. The bioaccumu- lation factors (BF) ... (Gcorge 1982; Bjerregaard & Vislie 1986) and loss of membrane integrity due to the ...... ences, starvation, age, stage in life history, sex and moulting. (Bryan 1976). The mte at ...

  11. Colourful Semantics: A Clinical Investigation

    Science.gov (United States)

    Bolderson, Sarah; Dosanjh, Christine; Milligan, Claudine; Pring, Tim; Chiat, Shula

    2011-01-01

    Children with language difficulties often omit verbs and grammatical elements and fail to complete sentences. Bryan (1997) described "colourful semantics", a therapy she used to treat a 5-year-old boy. The therapy uses colour coding to highlight the predicate argument structure of sentences. This study further tested the therapy's…

  12. Kontsert : 80ndad kindlalt tagasi. Tuleb

    Index Scriptorium Estoniae

    2007-01-01

    Kontsertidest Tallinnas: Bryan Ferry 2. nov., Oslo Filharmoonia Orkester 29. aug.Estonia kontserdisaalis, kontsert "80's are back!" (esinevad Thomas Anders ja Ricci E Poveri) 18. okt. Saku Suurhallis, Grammyle kandideerinud USA metalcore'i bänd Killswitch Engage 15. okt. Club Hollywoodis

  13. Smaller Satellite Operations Near Geostationary Orbit

    Science.gov (United States)

    2007-09-01

    Bender. “DARPA kickstarts R&D on sensors, space robotics.” Jane’s Defence Weekly. Horley: Nov 10, 1999. Vol. 032, Iss. 019, 1 17 Robert Wall. “Darpa...Bryan. “DARPA kickstarts R&D on sensors, space robotics.” Jane’s Defence Weekly Horley Vol. 032, Iss. 019 (10 November, 1999): 1. Bezlova

  14. Proceedings of the Annual Meeting of the Association for Education in Journalism and Mass Communication (85th, Miami, Florida, August 5-8, 2002). Commission on the Status of Women Division.

    Science.gov (United States)

    2002

    The Commission on the Status of Women Division of the proceedings contains the following 6 papers: "Relationship Content in Four Men's and Women's Magazines" (Alexis Zachary and Bryan Denham); "Mind the Gender Gap: Gender Differences in Motivation to Contribute Online Content" (Cindy Royal); "Peering through the Glass…

  15. 75 FR 9476 - Environmental Impact Statement: Salt Lake County, UT

    Science.gov (United States)

    2010-03-02

    ... 9A, Salt Lake City, UT 84118, Telephone: (801) 963-0182, E-mail: [email protected] . The Utah..., 4700 South, Bangerter Highway and Redwood Road. To provide for local and regional travel demands, the... 2010. Bryan Dillon, Federal Highway Administration, Salt Lake City, Utah. [FR Doc. 2010-4267 Filed 3-1...

  16. The Space Elevator and Its Promise for Next Generation Exploration

    Science.gov (United States)

    Laubscher, Bryan E.

    2006-01-01

    Bryan E. Laubscher received his Ph.D. in physics in 1994 from the University of New Mexico with a concentration in astrophysics. He is currently on entrepreneurial leave from Los Alamos National Laboratory where he is a project leader and he has worked in various capacities for 16 years. His past projects include LANL's portion of the Sloan Digital Sky Survey, Magdalena Ridge Observatory and a project developing concepts and technologies for space situational awareness. Over the years Bryan has participated in research in astronomy, lidar, non-linear optics, space mission design, space-borne instrumentation design and construction, spacecraft design, novel electromagnetic detection concepts and technologies, detector/receiver system development, spectrometer development, interferometry and participated in many field experiments. Bryan led space elevator development at LANL until going on entrepreneurial leave in 2006. On entrepreneurial leave, Bryan is starting a company to build the strongest materials ever created. These materials are based upon carbon nanotubes, the strongest structures known in nature and the first material identified with sufficient strength-to-weight properties to build a space elevator.

  17. Edo Journal of Counselling: Editorial Policies

    African Journals Online (AJOL)

    Benue State, Nigeria Professor Adriana G. McEachern Florida Inter. University, Miami. USA. Professor Bryan Hiebert University of Calgary, Alberta. Canada Professor Beatrz Malik Universidad Nacional de Educación a Distancia (UNED) Madrid, Spain Professor Jim Athanasou University of Technology, Sydney. Australia.

  18. Parental Authority over Education and the Right to Invite

    Science.gov (United States)

    Warnick, Bryan R.

    2014-01-01

    In this article, Bryan R. Warnick explores parents' authority to make educational decisions for their children. In philosophical debates, three types of arguments are typically invoked to justify parents' rights: arguments based on the welfare interests of children, arguments based on the expressive interests of parents, and arguments based on the…

  19. Erratum : Critical Properties of Spin-1 Antiferromagnetic Heisenberg Chains with Bond Alternation and Uniaxial Single-Ion-Type Anisotropy (vol 69, pg 237, 2000)

    OpenAIRE

    Chen, Wei; 飛田, 和男; Sanctuary, Bryan C.

    2008-01-01

    Original Paper :Critical Properties of Spin-1 Antiferromagnetic Heisenberg Chains with Bond Alternation and Uniaxial Single-Ion-Type AnisotropyWei Chen, Kazuo Hida and Bryan Clifford Sanctuary Journal of the Physical Society of Japan 69 (2000) pp.237-241

  20. Fairness in Teaching Evolution in Public Schools

    Science.gov (United States)

    Warnick, Bryan

    2014-01-01

    In this article, Bryan Warnick discusses not so much whether creationism should be taught in schools, but how evolution should be taught. He contends that if we are going to prohibit the teaching of something like Intelligent Design (ID) in science classrooms because it is unscientific, what implications does that then have for how we teach…

  1. Refinement of Foam Backfill Technology for Expedient Airfield Damage Repair; Phase 2: Development of Prototype Foam Dispensing Equipment and Improved Tactics, Techniques and Procedures

    Science.gov (United States)

    2017-12-01

    ix Acronyms...COL Bryan S. Green was the Commander of ERDC, and Dr. David W. Pittman was the Director. ERDC TR-17-14 ix Unit Conversion Factors Multiply By...replaceable. With quick disconnects in place on the dispensing system, it is possible to replace the mixing nozzle in less than 1 min. 3.1.2 Initial

  2. Large Eddy Simulation ... Where Do We Stand? International Workshop Held in St. Petersburg Beach, Florida on 19-21 December 1990.

    Science.gov (United States)

    1990-01-01

    thermohaline circulation. This has been most clearly demonstrated in a sensitivity study carried out by Bryan (1987) with a simplified OGCM. Figure 1 shows...Ruddick, B., 1980: Critical layers and the Garrett-Munk spectrum. J. Mar. Res., 38, 135-145. Saunders, P. M., 1987. Flow through discovery gap. J

  3. Bayesian inference and the analytic continuation of imaginary-time quantum Monte Carlo data

    International Nuclear Information System (INIS)

    Gubernatis, J.E.; Bonca, J.; Jarrell, M.

    1995-01-01

    We present brief description of how methods of Bayesian inference are used to obtain real frequency information by the analytic continuation of imaginary-time quantum Monte Carlo data. We present the procedure we used, which is due to R. K. Bryan, and summarize several bottleneck issues

  4. 77 FR 72141 - Rules of Practice and Procedure for Hearings Before the Office of Administrative Law Judges

    Science.gov (United States)

    2012-12-04

    ... whistleblowing employees in sec. 402 of the FDA Food Safety Modernization Act, 21 U.S.C. 399d, Public Law 111-353... Conference of the United States published at 169 F.R.D. 171 (1997), and Bryan A. Garner's A Dictionary of...

  5. Cardiovascular Topics The effect of anthracyclines on myocardial ...

    African Journals Online (AJOL)

    1999-02-01

    Feb 1, 1999 ... 2. Hitchcock-Bryan S, Gelber RD, Cassady JR. Sallan SE. The impact of induction anrhracycline on long-term failure-free survival in childhood acute lymphoblastic leukemia. Med Pediarr Oncol 1986; 14: 211-215. 3. Waagstein F, Fu LX, Hjalmarson A. A new insight into adriamycin- induced cardiotoxiciry.

  6. 75 FR 13145 - SBA Lender Risk Rating System

    Science.gov (United States)

    2010-03-18

    ... of Credit Risk Management, U.S. Small Business Administration, 409 Third Street, SW., 8th Floor...)(7) and 15 U.S.C. 687(f). Dated: March 12, 2010. Bryan Hooper, Director, Office of Credit Risk... SMALL BUSINESS ADMINISTRATION [Docket No. SBA-2010-0004] SBA Lender Risk Rating System AGENCY...

  7. The Role of Salinity on the Dynamics of the Arabian Sea Mini Warm Pool

    Science.gov (United States)

    2012-09-01

    for the year 2010 obtained from the Ocean Salinity Expertise Center (CECOS) of the CNES-IFREMER Centre Aval de Traitemenent des Donnees SMOS ( CATDS ...Traitcmcncnt des Donnccs SMOS ( CATDS ), at IFREMER, Plouzanc (France). Special thanks to the Editor, Frank Bryan, who thoroughly reviewed the manuscript

  8. Levels of Cadmium and Lead in Water, Sediments and Selected ...

    African Journals Online (AJOL)

    Daisy Ouya

    Kenya Marine and Fisheries Research Institute, P. O. Box 81651 Mombasa, Kenya. Key words: heavy metals, cadmium, lead, water, sediment, fish, Kenya coast. Abstract—Flame absorption spectrophotometry was used to ... The pollution of marine ecosystems by heavy metals is a worldwide problem (Bryan, 1976; Ober.

  9. Western flower thrips, a serious pest of floricultural crops

    Science.gov (United States)

    Karen L. Robb; Michael P. Perella

    1991-01-01

    The western flower thrips, Frankliniella occidentalis (Pergande), has recently become one of the most serious pest problems facing the ornamental industry (Robb & Parrella 1988). It is polyphagous and has been collected from plants of almost every order of the Spermatophyta in California (Watson 1923, Bailey 1933, Bryan & Smith 1956). However...

  10. Building Castles on Sand? Ignoring the Riptide of Information Operations (Maxwell Paper, Number 15)

    Science.gov (United States)

    1998-09-01

    to be taken seriously.൞ Meanwhile, vulnerabilities persist. The Pen Is Mightier than the Sword Information has never been more powerful than it is...Information Group, 1996), 22-26. 34. Kenneth D. Bryan, "Shop Talk: PACOM Team," Cyber Sword 1, no. 2 (Fall 1997): 38-39. 35. Whit Peters and Richard

  11. Sympathetic chain Schwannoma

    International Nuclear Information System (INIS)

    Al-Mashat, Faisal M.

    2009-01-01

    Schwannomas are rare, benign, slowly growing tumors arising from Schwann cells that line nerve sheaths. Schwannomas arising from the cervical sympathetic chain are extremely rare. Here, we report a case of a 70-year-old man who presented with only an asymptomatic neck mass. Physical examination revealed a left sided Horner syndrome and a neck mass with transmitted pulsation and anterior displacement of the carotid artery. Computed tomography (CT) showed a well-defined non-enhancing mass with vascular displacement. The nerve of origin of this encapsulated tumor was the sympathetic chain. The tumor was excised completely intact. The pathologic diagnosis was Schwannoma (Antoni type A and Antoni type B). The patient has been well and free of tumor recurrence for 14 months with persistence of asymptomatic left sided Horner syndrome. The clinical, radiological and pathological evaluations, therapy and postoperative complications of this tumor are discussed. (author)

  12. Spontaneous methicillin-resistant Staphylococcus aureus epidural abscess in pregnancy.

    Science.gov (United States)

    Connealy, Brendan D; Lovgren, Todd R; Tomich, Paul G; Smith, Carl V; Berg, Teresa G

    2010-08-01

    Epidural abscess is a rare complication of regional anesthesia, and spontaneous formation is even more uncommon. Diabetes mellitus, concomitant infection, intravenous drug use, and immune suppression are risk factors for spontaneous epidural abscess. A 29-year-old white woman presented at 28 weeks of estimated gestational age reporting an intermittent headache. She had Horner syndrome and was hospitalized. A cervicothoracic epidural abscess was diagnosed. Surgical decompression and parenteral antibiotics resulted in complete resolution of neurologic symptoms. Cultures were positive for methicillin-resistant Staphylococcus aureous. Spontaneous epidural abscess is a rare condition and diagnosis is often delayed. The finding of Horner syndrome led to imaging of the cervical spine and diagnosis of epidural abscess. Early intervention resulted in resolution of neurologic symptoms and a successful pregnancy outcome.

  13. Technology intervention research with deaf and hard of hearing learners: levels of evidence.

    Science.gov (United States)

    Beal-Alvarez, Jennifer; Cannon, Joanna E

    2014-01-01

    The authors evaluated the research base relative to technology use with deaf and hard of hearing students, examining 29 peer-reviewed studies published January 2000-August 2013 that used technology-based intervention (multimedia instructional applications/software) and investigating its effects on academic variables (academic skills used in instructional settings). They then evaluated the studies according to quality indicators for evidence-based research, both individually and as a body of evidence supporting intervention for deaf and hard of hearing students (Gersten et al., 2005; Horner et al., 2005; Institute of Education Sciences, 2013; Kratochwill et al., 2010, 2013). One of 24 group design studies met all Essential Quality Indicators; 3 of 5 single-case design studies did (Horner et al., 2005). No reviewed technology intervention met criteria for an established evidence base. Interventions are presented across technology types and academic areas to facilitate discussion of implications for researchers and practitioners.

  14. Olefination reactions of phosphorus-stabilized carbon nucleophiles.

    Science.gov (United States)

    Gu, Yonghong; Tian, Shi-Kai

    2012-01-01

    A range of phosphorus-stabilized carbon nucleophiles have been employed for alkene synthesis with high chemo-, regio-, and stereoselectivity. The Wittig, Horner-Wadsworth-Emmons, Horner-Wittig, and Evans-Akiba reactions utilize phosphonium-, phosphonate-, phosphine oxide-, and pentacoordinated phosphorane-stabilized carbanions as nucleophiles, respectively, to undergo olefination with aldehydes or ketones, and each of these transformations has its own advantages and limitations. Modifying the structures of these nucleophiles along with optimizing reaction conditions results in the formation of a wide variety of polysubstituted alkenes in a highly stereoselective manner. The olefination of imines with phosphonium ylides has recently emerged as a useful approach to tune the stereoselectivity for alkene synthesis. This review focuses on recent advances in the stereoselective olefination of phosphorus-stabilized carbon nucleophiles.

  15. Carotid Artery Dissection and Cerebral Infarction Secondary to Blunt Trauma

    Directory of Open Access Journals (Sweden)

    Burcu Gökçe

    2012-12-01

    Full Text Available Traumatic carotid artery dissection may appear after blunt head or neck trauma. Patients were either asymptomatic or clinically symptoms may include loss of consciousness, hemiparesis, aphasia and Horner syndrome, these typically occurring after an interval of hours to days. Patients were either asymptomatic or clinically symptoms may include headache, transient ischemic attack, stroke, Horner Syndrome and loss of consciousness, these typically occurring after an interval of hours to days. Prognosis is good if an early diagnosis and treatment were established. As cerebral ischemia and neurological deficits may develop in subsequent periods, it is essential that the carotid artery dissection should be kept in mind for possible cases in order to evaluate and diagnose it properly. In this article, we present a case of internal carotid artery dissection including diagnostic neuroimaging, which occurred after 6 hours of blunt trauma and subsequent cerebral infarction following a car accident. Clinical features, neuroradiological diagnostic methods and treatments options are discussed with the relevant literature

  16. Barriers to Health Promotion and Disease Prevention Within the Military Healthcare System

    Science.gov (United States)

    1999-05-25

    most at risk are people who live in the inner cities and those who live in rural locations (Earnest, 1991; Friedman, 1994; Horner et al., 1994...BARRIERS TO HEALTH PROMOTION AND DISEASE PREVENTION WITHIN THE MILITARY HEALTHCARE SYSTEM 6. AUTHOR(S) CAPT MCLAUGHLIN GAYLA D 5. FUNDING NUMBERS 7...PROMOTION AND DISEASE PREVENTION WITHIN THE MILITARY HEALTHCARE SYSTEM Gayla D. McLaughlin APPROVED: Barbara M. Sylvia, Ph.D., R.R, Cftair ßW- l

  17. The importance of perfusion index monitoring in evaluating the efficacy of stellate ganglion blockage treatment in Raynaud's disease.

    Science.gov (United States)

    Şahin, Ömer Fatih; Tarıkçı Kılıç, Ebru; Aksoy, Yakup; Kaydu, Ayhan; Gökçek, Erhan

    2018-12-01

    Stellate ganglion blockage (SGB) is a method used for treating Raynaud's phenomenon (RP). This study primarily aimed to determine whether the perfusion index (PI) can be used an alternative to Horner's signs in evaluating the efficacy of SGB in patients diagnosed with RP. In a total of 40 patients, aged 18-65 years and diagnosed with primary RP, SGB was applied for 5 days on the same side with the 2-finger method, using 6 mL of 5% levobupivacaine at the 7th cervical vertebra level. The PI values were recorded from the distal end of the 2nd finger of the upper extremity on the side applied with the block at baseline and at 5, 15, 30, 60 and 120 min. The onset time of Horner findings was recorded. The PI values and visual analogue scale (VAS) pain scores were recorded pre-treatment and after 2 weeks.When the PI values of the 40 patients were examined, a 62.7% increase was observed from baseline to the first session at 5 min (p < 0.05). When all sessions were evaluated, a statistically significant increase was determined in the PI values measured at 5, 15, 30, 60 and 120 min compared with the baseline PI values. There was a statistically significant decrease in the post-treatment VAS pain scores and a statistically significant increase in the post-treatment PI values (p < 0.05). By eliminating peripheral vasospasm with the application of SGB in patients with RP, the distal artery blood flow and PI are increased. PI measurement is a more objective method and therefore could be used as an alternative to Horner findings in evaluating the success of SGB. PI is a non-invasive and simple measurement and also an earlier indicator in evaluating the success of SGB than Horner's signs.

  18. The algorithmic details of polynomials application in the problems of heat and mass transfer control on the hypersonic aircraft permeable surfaces

    Science.gov (United States)

    Bilchenko, G. G.; Bilchenko, N. G.

    2018-03-01

    The hypersonic aircraft permeable surfaces heat and mass transfer effective control mathematical modeling problems are considered. The analysis of the control (the blowing) constructive and gasdynamical restrictions is carried out for the porous and perforated surfaces. The functions classes allowing realize the controls taking into account the arising types of restrictions are suggested. Estimates of the computational complexity of the W. G. Horner scheme application in the case of using the C. Hermite interpolation polynomial are given.

  19. Synthesis of the (9R,13R)-isomer of LDS1, a flower-inducing oxylipin isolated from Lemna paucicostata.

    Science.gov (United States)

    Takayasu, Yuki; Ogura, Yusuke; Towada, Ryo; Kuwahara, Shigefumi

    2016-08-01

    The first synthesis of the (9R,13R)-stereoisomer of LDS1, a flower-inducing oxylipin isolated from Lemna paucicostata, has been achieved from a known allylic alcohol by a seven-step sequence that involves the Horner-Wadsworth-Emmons olefination to construct its full carbon framework and an enzymatic hydrolysis of a penultimate methyl ester intermediate to provide the target molecule.

  20. Vinyl azides derived from allenes: thermolysis leading to multisubstituted 1,4-pyrazines and Mn(III)-catalyzed photochemical reaction leading to pyrroles.

    Science.gov (United States)

    Sajna, K V; Kumara Swamy, K C

    2012-10-05

    Thermolysis of phosphorus-based vinyl azides under solvent- and catalyst-free conditions furnished a new route for 1,4-pyrazines. A simple one-pot, Mn(III)-catalyzed photochemical route has been developed for multisubstituted pyrroles starting from allenes and 1,3-dicarbonyls via in situ-generated vinyl azides. The utility of new phosphorus-based pyrroles is also demonstrated in the Horner reaction. The structures of key products are unequivocally confirmed by X-ray crystallography.

  1. Shuttleworth presentations

    CERN Multimedia

    CERN. Geneva

    2011-01-01

    Part 1: Open Education and Open Access Kathi Fletcher – Education highways Gavin Weale – Live Magazine Mark Horner – Siyavula Philip Schmidt – Peer-to-peer university Steve Vosloo - Yoza Part 2: Open Source and Open Standards Andrew Rens – Creative Commons law Kabir Sanjay Bavikatte - Bio-cultural Community Protocols Mark Surman – Mozilla Drumbeat Steve Song – Village Telco Part 3: Open Data and Open Science Rufus Pollock – The Open Knowledge Foundation Francois Grey – Citizen Cyberscience

  2. Synthesis of a Diamino Substituted Terphenyldivinyl Chromophore

    Directory of Open Access Journals (Sweden)

    Jun-Ru Wang

    2009-06-01

    Full Text Available (E,E-1,4-bis(4'-aminostyryl-2,5-bis(octyloxy-benzene (6 and its derivative (E,E-1,4-bis(4'-acetamidostyryl-2,5-bis(octyloxy-benzene (7 were synthesized and characterized after alkylation, bromomethylation, Horner-Emmons reaction and reduction from hydroquinone. In order to gain more molecular electronic data, HOMO and LUMO of compound 6 have been calculated by Gaussian 03 W.

  3. Search for highly efficient, stereoselective, and practical synthesis of complex organic compounds of medicinal importance as exemplified by the synthesis of the C21-C37 fragment of amphotericin B.

    Science.gov (United States)

    Wang, Guangwei; Xu, Shiqing; Hu, Qian; Zeng, Fanxing; Negishi, Ei-ichi

    2013-09-23

    Highly stereoselective: A highly efficient, stereoselective and practical synthesis of the C21-C37 fragment of amphotericin B was realized in 25 % overall yield in eight longest linear steps from commercially available ethyl (S)-3-hydroxybutyrate by using Fráter-Seebach alkylation, Brown crotylboration, Negishi coupling, Heck reaction, and Horner-Wadsworth-Emmons (HWE) olefination as key steps (see diagram). Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  4. Schwanomma From Cervical Sympathetic Chain Ganglion - A Rare Presentation.

    Science.gov (United States)

    Asma, A Affee; Kannah, E

    2015-10-01

    Schwanommas arising from cervical sympathetic chain are tumours that are rare in occurrence. These lesions are usually difficult to differentiate from a vagal schwanomma and a carotid body tumour during the initial workup. In this report, a rarely seen huge cervical sympathetic chain schwanomma case with partial Horner's syndrome is being presented in detail, which to our known knowledge, is one of the few cases reported in literature.

  5. Social capital and cigarette smoking among Latinos in the United States

    OpenAIRE

    Li, Shijian; Horner, Pilar; Delva, Jorge

    2012-01-01

    Shijian Li1, Pilar Horner2, Jorge Delva31School of Medicine, New York University, New York, NY, USA; 2School of Social Work, Julian Samora Research Institute, Michigan State University, East Lansing, MI, USA; 3School of Social Work, University of Michigan, Ann Arbor, MI, USA.Abstract: This paper presents the results of analyses conducted to examine if social capital indicators were associated with current cigarette smoking and with quitting smoking among a national representative sample of La...

  6. ゴシック文学研究書誌 2002-2003

    OpenAIRE

    金崎, 茂樹; カナサキ, シゲキ; Shigeki, KANASAKI

    2014-01-01

    This is a follow-up to my previous paper, titled "Selected Bibliography of Criticism on Gothic Literature since 2000: Annotation and Commentary," the main aim of which was to select some of the remarkable criticism of the Gothic since 2000, to provide additional commentary, and to show the academic trend in this genre. In this paper the following three books are selected and annotated: Dani Cavallaro's The Gothic Vision: Three Centuries of Horror, Terror and Fear (2002), Avril Horner's Europe...

  7. A practical and azide-free synthetic approach to oseltamivir from diethyl D-tartrate.

    Science.gov (United States)

    Weng, Jiang; Li, Yong-Bo; Wang, Rui-Bin; Li, Feng-Quan; Liu, Can; Chan, Albert S C; Lu, Gui

    2010-05-07

    A short and practical synthesis of oseltamivir was accomplished in 11 steps from inexpensive and abundant diethyl D-tartrate starting material. This azide-free route featured an asymmetric aza-Henry reaction and a domino nitro-Michael/Horner-Wadsworth-Emmons (HWE) reaction as the key steps to construct the relevant cyclohexene ring of the product, which provided an economical and practical alternative for the synthesis of oseltamivir.

  8. Sen udvikling af carotisdissektion efter trafikuheld

    DEFF Research Database (Denmark)

    Hjort, Mathias; Ljungberg, Merete; Jakobsen, Linda

    2011-01-01

    This case study discusses the clinical manifestations of carotid dissection in a 58-year-old male admitted with minor injuries after a traffic accident. Within 24 hours the patient developed Horner syndrome, hoarseness and possible facial nerve palsy. A CT-angiogram showed dissection of the left ...... carotid artery in its extracranial part. The patient was treated with anticoagulants and transferred to a neurological ward for further examination. Follow-up with CT angiography was scheduled for five months later....

  9. Naval War College Review. Volume 66, Number 2, Spring 2013

    Science.gov (United States)

    2013-01-01

    Naval Exploits of the Chinese People during the Southern Song and Yuan Periods, by lo Jung -pang (edited by Bruce elleman) reviewed by Charles Horner...speculation. the debate surrounding China’s resource strategy is framed by competing archetypes of China’s rise.23 analysts who view China as a...are arne roksund, The Jeune École: The Strategy of the weak (leiden: brill, 2007); volkmar bueb, Die “ Junge Schule” der französischen Marine

  10. ALTERNATIVE AND COMPLEMENTARY SYNTHETIC APPROACHES TO β CARBOXY-α-METHYLENE-γ-BUTYROLACTONE ETHYL ESTERS

    OpenAIRE

    Gwenaëlle Liberge; Stéphane Lebrun; Axel Couture; Pierre Grandclaudon

    2011-01-01

    Alternative synthetic approaches to a variety of β substituted and carboxylated α-methylene-γ-butyrolactones have been developed. In the first approach the mandatory methylene unit was incorporated on precursor compounds at early stage of the synthesis on reliance with Horner-Emmons protocol. In the alternative approach which further tolerates multifarious substituents at γ-position of the lactone template the unsaturated moiety α to the lactone carbonyl group is connected at a later stage th...

  11. Syntheses of special monomers for .pi.-conjugated polymers

    Czech Academy of Sciences Publication Activity Database

    Výprachtický, Drahomír; Cimrová, Věra; Pavlačková, Petra; Kmínek, Ivan

    2008-01-01

    Roč. 268, č. 1 (2008), s. 120-124 ISSN 1022-1360. [Microsymposium on Advanced Polymer Materials for Photonics and Electronics /47./. Prague, 15.07.2007-19.07.2007] R&D Projects: GA AV ČR IAA4050409; GA MŠk(CZ) 1M06031 Institutional research plan: CEZ:AV0Z40500505 Keywords : activated ester * .beta.-diketone * Horner-Wadsworth-Emmons reaction * pyrene derivative Subject RIV: BM - Solid Matter Physics ; Magnetism

  12. CARCINOME ANAPLASIQUE DE LA THYROÏDE: A PROPOS DE ...

    African Journals Online (AJOL)

    16 juin 2006 ... Le diagnostic d'une thyroïdite de De Quervain a été forte- ment suspecté, et un traitement médical à base de corti- coïdes par voie ... lysie récurrentielle, une dysphagie, un syndrome cave supérieur ou un syndrome de Claude Bernard Horner par compression du plexus nerveux sympathique [9]. Les signes ...

  13. Cultural Resource Management Report of the Phase I Cultural Resources Investigation of a Proposed Flood Control Project Along the Pembina River, at Neche, Pembina County, North Dakota.

    Science.gov (United States)

    1986-11-13

    Sister’s Hill phase and Alberta and Cody into a Horner phase. It is Pettipas’ contension that the first Plano people entered Manitoba circa 8000 B.C. and...from 1092 B.C. to A.D. 25 (Reeves 1983b). It is Reeves’ (1983a) contension that Pelican Lake was an outgrowth of the McKean complex, and was a phase

  14. The application of green chemistry methods in organophosphorus synthesis

    Science.gov (United States)

    Odinets, Irina L.; Matveeva, E. V.

    2012-03-01

    Data concerning the synthesis of organophosphorus compounds in ionic liquids, in water and under solvent-free conditions are considered and summarized. It is shown that this strategy, which complies with the definition of green chemistry, has advantages in terms of the rate of the process and the yields of target products as compared with syntheses in common organic solvents. The Wittig, Horner-Wadsworth-Emmons, Kabachnik-Fields, Arbuzov and Michaelis reactions are considered as examples. The bibliography includes 178 references.

  15. Heterochromia

    OpenAIRE

    Berna Başarır; Çiğdem Altan

    2014-01-01

    Heterochromia is a condition of color difference between the two eyes. It is composed by the words heteros (different) and chromos (color). It can either be sporadic or benign but also can be an indicator of an eye disease. The abnormal iris can be hypochrome or hyperchrome. It can be congenital or acquired. Some diseases such as Horner syndrome, Fuchs’ heterochromic iridocyclitis, oculodermal melanocytosis, Waardenburg syndrome, unilateral topical use of prostaglandins, siderosis ca...

  16. Organophosphorus reagents in organocatalysis: synthesis of optically active α-methylene-δ-lactones and δ-lactams.

    Science.gov (United States)

    Albrecht, Anna; Morana, Fabio; Fraile, Alberto; Jørgensen, Karl Anker

    2012-08-13

    In this paper we describe new asymmetric, catalytic strategies for the synthesis of biologically important α-methylene-δ-lactones and δ-lactams. The elaborated protocols utilize iminium-ion-mediated Michael addition of trimethyl phosphonoacetate to α,β-unsaturated aldehydes catalyzed by (S)-(-)-α,α-diphenyl-2-pyrrolidinemethanol trimethylsilyl ether as the key step. Enantiomerically enriched Michael adducts are employed in three different reaction pathways. Transformation into α-methylene-δ-lactones is realized by a sequence of reactions involving chemoselective reduction of the aldehyde, followed by a trifluoroacetic acid (TFA)-mediated cyclization and Horner-Wadsworth-Emmons olefination of formaldehyde. On the other hand, indolo[2,3-a]quinolizine-framework-containing products can be accessed when enantiomerically enriched Michael adducts are employed in a Pictet-Spengler reaction with tryptamine, followed by Horner-Wadsworth-Emmons olefination. Finally, reductive amination of the Michael adducts by using methylamine and Horner-Wadsworth-Emmons olefination of formaldehyde is demonstrated to give α-methylene-δ-lactams. The developed strategies can be realized without the purification of intermediates, thus greatly increasing their practicality. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  17. “They Are All Too Foreign and Unfamiliar…”: Nabokov’s Journey to the American Reader

    Directory of Open Access Journals (Sweden)

    Olga Voronina

    2017-12-01

    Full Text Available Both in Speak, Memory and in Strong Opinions, Nabokov insists on his early proficiency in English, French. This authorial stance makes it easy to believe that the writer’s transition to English was easy. And yet, Nabokov’s correspondence with publishers and his literary agent, Altagracia de Jannelli, reveals that this conversion was torturous and required extensive support from native speaker editors and translators. The essay documents Nabokov’s inner turmoil at the time when he began to explore the British and American markets. In spite of the publication of Camera Obscura in England (1936 and, as Laughter in the Dark, in the US (1938, his other works’ journeys to the Anglophone reader required time and effort. A close reading of the famous afterword to Lolita, a comparative analysis of Winifred Roy’s translation of Camera Obscura and Nabokov’s self-translation of Laughter in the Dark, and the perusal of the author’s correspondence illustrate the difficulties he had to overcome in order to convey stylistic intricacy of his fiction to this new audience.

  18. AN EXPLORATORY ANALYSIS OF FAMILIARITY AND WILLINGNESS TO USE ONLINE FOOD SHOPPING SERVICES IN A LOCAL AREA OF TEXAS

    OpenAIRE

    Hiser, Jennifer; Nayga, Rodolfo M., Jr.; Capps, Oral, Jr.

    1999-01-01

    Online food shopping is not only one of the newest innovations in grocery shopping but also one of the many services integrating the changing needs of consumers and the increasing use of modern technology. A survey was conducted in the Bryan/College Station area of Texas to determine a quantitative profile of consumers, via logit analysis, who are familiar with the concept of online food shopping and who are willing to use an online food shopping service. Older people, females, major shoppers...

  19. Nonsmoothable involutions on spin 4-manifolds

    Indian Academy of Sciences (India)

    [2] Bryan J, Seiberg-Witten theory and Z/2p actions on spin 4-manifolds, Math. Res. Lett. 5. (1998) 165–183. [3] Chen W and Kwasik S, Symmetries and exotic smooth structures on a K3 surface,. J. Topology 1(4) (2008) 923–962. [4] Edmonds A L and Ewing J H, Realizing forms and fixed point data in dimension four,.

  20. LGM-30B, Stage II Dissected Motor Test Report.

    Science.gov (United States)

    1986-01-01

    By REONA CHRISTENSEN, Math /Stat. Data Analysis Unit Engineering Review By BRYAN L. BELL, Project Engineer Service Engineering Approved,By o./ / 2 / z...z * z . , , a* >. LuL uW z %z -?a %4 e 󈧅 w (n CL w ’ 7-I- K 0168 CILO CU) C,) C ) %D P -m " %--IC C C) C-)c- IC ) C3C clil (.;0 CC) C.- CD. I... L

  1. The Role of Ethics in International Arms Transfers

    Science.gov (United States)

    2016-06-01

    A Fierce Domain (Cyber Conflict Studies Association, 2013), 226. 10 Healey, ed., A Fierce Domain , 226...11 Grimmett, U.S. Arms Sales to Pakistan. 1. 12 Healey, ed., A Fierce Domain , 226. 13 Grimmett, U.S. Arms Sales to Pakistan, 2. 14 Williams, Bryan...Saudi Arabia, 45. 15 Jason Healey, ed., A Fierce Domain (Cyber Conflict Studies Association, 2013), 226. 16 Healey, A Fierce Domain , 215.

  2. Who Gets a Bailout? A Comparative Analysis of U.S. and IMF Responses to Economic Crisis in Mexico (1995), Brazil (1998), and Argentina (2001)

    Science.gov (United States)

    2009-12-01

    within MERCOSUR has helped keep the organization focused on South American free trade and away from the political affairs championed by Venezuela ...time, it remains geopolitically significant as a result of its role as a stabilizer within MERCOSUR and South America more generally. Brazil’s record...of the South ( MERCOSUR ). MERCOSUR is the largest trading block in South America and the 77 Bryan T. Johnson, “U.S. Foreign Aid and

  3. Relevancy of Serum Calcium in Predicting Blood Product Transfusion in Trauma

    Science.gov (United States)

    2017-08-10

    AFRL-SA-WP-SR-2017-0027 Relevancy of Serum Calcium in Predicting Blood Product Transfusion in Trauma Lt Col Rance Bryan, MOANG...AFRL-SA-WP-SR-2017-0027 HAS BEEN REVIEWED AND IS APPROVED FOR PUBLICATION IN ACCORDANCE WITH ASSIGNED DISTRIBUTION STATEMENT...estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the

  4. Military Medical Entomology During the Mexican-American and First World Wars: A Coming of Age

    Science.gov (United States)

    2008-11-16

    22 Churchman, J. W. 1906. The use of quinine show of the big show. Inge, M. T. (ed.) Plume, during the Civil War. Johns Hopkins Hospital Penguin... malaria in 1807 (Bryan Yellow Fever Commission and became et al. 2004). Doctor Josiah Nott had extremely influential in the growth and expressed similar...Disease - Mosquitoes and the consequences of inadequate medical Malaria " before the Washington resources, particularly in preventive Philosophical

  5. A Methodology for Optimal Design of Water Distribution Systems.

    Science.gov (United States)

    1979-12-01

    3),NSEQ3) FLOOO05 r CMMON IPATH42/ PPTRA75).NLOAO(75) FLOO036O 0N"P0N /LINdK/ AL(4 1). CV(5)Mi4)ICAS *LICL4) NOIA .4FLOGOO7 I(LA(3, -N45.O(5 FLCOGCO...Bryan David and Jennifer Lyn. In August 1977 he entered the Graduate School of The University of Texas at Austin. Permanent address: 2517 McGregor Dr

  6. A Clinical Evaluation Of Cone Beam Computed Tomography

    Science.gov (United States)

    2016-06-01

    reliability of multidetector computed tomography and cone beam computed tomography in the assessment of dental implant site dimensions. Dentomaxillofacial...A CLINICAL EVALUATION OF CONE BEAM COMPUTED TOMOGRAPHY by Bryan James Behm, D.D.S. Lieutenant, Dental Corps United States Navy A thesis...submitted to the Faculty of the Endodontic Graduate Program Naval Postgraduate Dental School Uniformed Services University of the Health Sciences in

  7. The 1997 Excavations at the Big Eddy Site (23CE426) in Southwest Missouri

    Science.gov (United States)

    1998-11-24

    Paleolithic , pre-Projectile Point, or pre-Clovis (e.g., Alsoszatai-Petheo 1986; Bryan 1986), they have cor- rectly emphasized the need for caution...Spiess et al. 1985), but good subsistence data are lacking. The traditional " diet -centered" model of Early Paleoindian adaptation is of highly...the Advancement of Sci- ence 37:293-315. 1892 Paleolithic Man in America. Science 20:270-271. Adovasio, James M., Jack Donahue, and Robert

  8. Aviation in the U.S. Army, 1919-1939,

    Science.gov (United States)

    1987-01-01

    golf champion Bobby Jones, football greats Knute Rockne and Red Grange. tennis stars Helen Wills and Bill Tilden, swimmer Gertrude Ederle, prize...and watch what went on. If they stayed Friday night at Bryan, they might go to a high school football game; on Sunday at Rock Island they could listen...378-79, 398 McCulloagh. Arthur L.: 295 Little Rock, Arkansas: 13 McCune, Milo: 143 Liverpool , England: 182 MacDill, Leslie: 109, 320 Lockheed

  9. Uus plaat

    Index Scriptorium Estoniae

    2004-01-01

    Uutest plaatidest Marillion "Marbles", "The Prodigy", Massive Attack "Danny The Dog", Metallica "Some Kind Of Monster", Rammstein "Reise, Reise", Ahlee Simpson "Autobiography", Robbie Williams "Greatest Hits", Freestyles "Rawas F**K", "Michael Moore: Fahrenheit 9/11", Marilyn Manson "Lest We Forget", Gregorian "the Dark Side", Kool & The Kang "The Hits", Dream Theater "Live At Budokan", Feist "Let It Die", Compay Segundo, depeche Mode "Remixes", Bryan Adams "Room Service", mark Knopfler "Shangri La", Alfie "Soundtrack", Brian Wilson "Smile"

  10. Regional Rivalries and Nuclear Responses. Volume 2. The South Korean Case: A Nuclear Weapons Program Embedded in an Environment of Great Power Concerns. (Sanitized)

    Science.gov (United States)

    1978-02-28

    reactor for economically optimum burnup periods. Rods removed prematurely from a power reactor or material from the core of a plutonlum production...ICNT’i CATALOG NUMBeR 4. IHLt (and iubtlll») j^GIONAL RIVALRIES AND NUCLEAR RESPONSES, Volume II, The South Korean Case: A Nuclear Weapons... NUMBER ^PH 78-02-794-32 - V--^- 7. AUTMORfJj Principal author:Bryan Jack. Contributing authors: Marcella. Agmon, Steven LrHead, David McGarvey

  11. High-Performance 3D Image Processing Architectures for Image-Guided Interventions

    Science.gov (United States)

    2008-01-01

    K. Kyriacou, C. Davatzikos, S. J. Zinreich, and R. N. Bryan, "Nonlinear elastic registration of brain images with tumor pathology using a...Colon Diverticulitis : Imaging with Low-Dose Unenhanced Multi-Detector Row CT," Radiology, vol. 237(1), pp. 189-196, 2005. [178] D. Sennst, M...ABSTRACT Title of Document: HIGH-PERFORMANCE 3D IMAGE PROCESSING ARCHITECTURES FOR IMAGE -GUIDED INTERVENTIONS Omkar

  12. Record of imposex in Cronia konkanensis (Gastropoda, Muricidae) from Indian waters

    Digital Repository Service at National Institute of Oceanography (India)

    VishwaKiran, Y.; Anil, A.C.

    .81% in Stage 4 female snails collected from Marmugao harbour. # 1999 Elsevier Science Ltd. All rights reserved. Keywords: Imposex; Cronia konkanensis; TBT influence; Environmental impact; Ecosystem disturbance 1. Introduction Imposex is a genital disorder... (1971) for Ilyanassa obsoleta (Nassariidae). Bryan and co-workers confirmed Smith’s earlier work through a series of laboratory Marine Environmental Research 48 (1999) 123–130 www.elsevier.com/locate/marenvrev 0141-1136/99/$ - see front matter # 1999...

  13. Seamounts - characteristics, formation, mineral deposits and biodiversity

    Digital Repository Service at National Institute of Oceanography (India)

    Iyer, S.D.; Mehta, C.M.; Das, P.; Kalangutkar, N.G.

    technologies help to investigate seamounts in more detail. For instance, Bryan and Cooper (1995) deployed a deep ocean-bottom seismometer to record an undersea volcanic event and monitor the seismic events on the summit and flanks of the Loihi Seamount... lavas, lava lakes, “paving-stones” and hyaloclastites. Bonatti and Harrison (1988) investigated the eruption style of MOR and seamount basalts in relation to magma temperature and viscosity and proposed an eruptive style model for seamounts...

  14. Proceedings of the Thirteenth International Society of Sports Nutrition (ISSN) Conference and Expo

    OpenAIRE

    Ramaswamy, Lalitha; Velraja, Supriya; Escalante, Guillermo; Harvey, Phil; Alencar, Michelle; Haddock, Bryan; Harvey, Phil; Escalante, Guillermo; Alencar, Michelle; Haddock, Bryan; Durkalec-Michalski, Krzysztof; Jeszka, Jan; Zawieja, Bogna; Podg?rski, Tomasz; Trussardi Fayh, Ana Paula

    2016-01-01

    Table of contents P1 Impact of antioxidant-enriched nutrient bar supplementation on the serum antioxidant markers and physical fitness components of track and field athletes Lalitha Ramaswamy, Supriya Velraja P2 The effects of phosphatidic acid supplementation on fitness levels in resistance trained women Guillermo Escalante, Phil Harvey, Michelle Alencar, Bryan Haddock P3 The effects of phosphatidic acid supplementation on cardiovascular risk factors in resistance trained men Phil Harvey, Gu...

  15. Iran’s Islamic Revolutionary Guard Corps in 2011: Is the IRGC on the Verge of Strategic Overreach?

    Science.gov (United States)

    2011-05-01

    November 22, 2010. http://www.economist.com/node/17493366/ 72 Fassihi, Farnaz. "Iran’s Economy Feels Sting of Sanctions". The Wall Street Journal , October...Jay Solomon. "New U.S. Sanctions Hit Iran Guard, Shipper." The Wall Street Journal . December 21,2010. http:/ /online. wsj .com/ 75 Ilan Berman...Rowman and Littlefield Publishing Group, Inc., 2009. Bryan-Low, Cassell. "Hacker Collective Targets Iran Sites." The Wall Street Journal . February 14

  16. High Performance Parallel Multigrid Algorithms for Unstructured Grids

    Science.gov (United States)

    Frederickson, Paul O.

    1996-01-01

    We describe a high performance parallel multigrid algorithm for a rather general class of unstructured grid problems in two and three dimensions. The algorithm PUMG, for parallel unstructured multigrid, is related in structure to the parallel multigrid algorithm PSMG introduced by McBryan and Frederickson, for they both obtain a higher convergence rate through the use of multiple coarse grids. Another reason for the high convergence rate of PUMG is its smoother, an approximate inverse developed by Baumgardner and Frederickson.

  17. Popnädal : Popuudised. Plaadid. Top 20 20 Raadio 2 / Aivar Meos

    Index Scriptorium Estoniae

    Meos, Aivar

    2002-01-01

    Industrial-ikooni Frontline Assembly ning projekti Delerium liige Rhys Fulber annab juulis välja oma uue sooloprojekti "Conjure One" albumi. Massive Attacki DVD-kogumikust "Eleven Promos". Ansambli The Orb plaadist "Daleth of Elphame". Rock-pop legendi Bryan Ferry uuest sooloplaadist "Frantic". Heliplaatidest "Ocean's Eleven" ja "Neil Young - Are You Passionate?". Edetabel eelmise nädala Raadio 2 enimmängitud lugudest

  18. Advanced MRI in Blast-related TBI

    Science.gov (United States)

    2012-07-01

    this study possible; the staff at the LRMC MRI clinic, including Don Al- brant, Kenny Caywood, Kelly McKay, Tim McKay, Tim Roberts, Kris Robertson...erans with persistent post-concussive symp- toms . Neuroimage 2011;54:Suppl 1:S76- S82. 12. Warden DL, French LM, Shupenko L, et al. Case report of a...Luethcke CA, Bryan CJ, Morrow CE, Isler WC. Comparison of concussive symp- toms , cognitive performance, and psycho- logical symptoms between acute blast

  19. Engineer: The Professional Bulletin of Army Engineers, May-Aug 2010

    Science.gov (United States)

    2010-08-01

    project features mul- tiple basketball courts, volleyball courts, horseshoe pits, and a walking trail for physical fitness. Excellent facilities like...Jennifer Morgan COMMANDANT Brigadier General Bryan G. Watson FEATURES 06 Fallen Sapper Memorial 2010 By Captain Russell Lehman and Captain Samuel...announcements, and request-for-information features . ESKN was recently redesigned to better suit the needs of engineers (replaced Sapper 411). ■ Engineer

  20. Des Ogle's old stump

    International Nuclear Information System (INIS)

    Jones, M.; Sutton, D.; Wallace, R.

    1998-01-01

    On 17 October 1997 Sylvia Bryan of RD4 Kaitaia wrote to 'Dear Somebody-Everybody' at the Anthropology Department, University of Auckland, urging further examination of an adzed stump found by Des Ogle during planting out of the Te Aupouri forest. The authors have since sought out relevant information and present it here for the interests of our readers. (author). 7 refs., 1 fig

  1. The Army’s Cargo Fleet in World War II

    Science.gov (United States)

    1945-05-01

    increasing use of pack trains. As early as September 1943, Lt General Mark W. Clark of the Fifth Army anticipated an increasing need of "more of this...John H. Leavell , OCT, presided, while Major Curtis F. Bryan, OCT, served as Acting Secretary. Others on the committee were representa- tives of the Army...Admiral, Adminis- trator, War Shipping Adminis- tration, 40, 41, 66 Landing ship, tank, 71-72, 108 Leavell , John H., Colonel, 102 Lend-Lease

  2. Two Dimensional Movement Patterns of Juvenile Winter Run and Late Fall Run Chinook Salmon at the Fremont Weir, Sacramento River, CA

    Science.gov (United States)

    2017-07-01

    ix 1 Introduction...Dr. Beth C. Fleming. COL Bryan S. Green was the Commander of ERDC, and Dr. David W. Pittman was the Director of ERDC. ERDC/EL TR-17-10 ix Unit...Thermometer for quick temperature checks ERDC/EL TR-17-10 45 4. pH meter or litmus paper 5. Acoustic tags (V-4) 6. VEMCO acoustic tag activator with

  3. Sexual Assault and Sexual Harassment in the U.S. Military: Annex to Volume 3. Tabular Results from the 2014 RAND Military Workplace Study for Coast Guard Service Members

    Science.gov (United States)

    2015-01-01

    lead Bonnie Ghosh-Dastidar, Ph.D. Craig Martin, M.A. Q Burkhart, M.S. Robin Beckman, M.P.H. Megan Mathews, M.A. Marc Elliott, Ph.D. Project Management...Ph.D., team lead Wayne Hintze, M.S. John Rauch Bryan Davis Lena Watkins Richard Sigman, M.S. Michael Hornbostel, M.S. Project Communications Steve

  4. Sexual Assault and Sexual Harassment in the U.S. Military: Annex to Volume 2. Tabular Results from the 2014 RAND Military Workplace Study for Department of Defense Service Members

    Science.gov (United States)

    2015-01-01

    Dastidar, Ph.D. Marc Elliott, Ph.D. Craig Martin, M.A. Mark Totten, M.S. Q Burkhart, M.S. Robin Beckman, M.P.H. Project Management Kayla M. Williams, M.A...Hintze, M.S. John Rauch Bryan Davis Lena Watkins Richard Sigman, M.S. Michael Hornbostel, M.S. Project Communications Steve Kistler Jeffrey Hiday Barbara

  5. A Baseline Analysis of Combat Logistics Force Scheduling Efficiency

    Science.gov (United States)

    2016-06-01

    INTENTIONALLY LEFT BLANK xv ACKNOWLEDGMENTS I would like to offer my deepest gratitude to my thesis advisors, Dr. Daniel Nussbaum and Professor Bryan... ocean shipping that makes the overall industry less open to new ideas (1983, p. 119). The three general modes of operation in shipping are liner...help with the overall understanding of efficiency percentages. Coalition ships, both warships and supply vessels, play a major part in operations in

  6. Protection by Purines in Toxin Models of Parkinson’s Disease

    Science.gov (United States)

    2016-04-01

    J., Worden, L., Sink , K.S., Font, L., Correa, M., Sager, T.N., Salamone, J.D., 2009. Effects of the adenosine A2A antagonist KW-6002 (istradefylline... hippocampus using the optical fractionator. The Anatomical Record 231: 482. 28. Chen X, Burdett TC, Desjardins CA, Logan R, Cipriani S, et al. (2013...cortex and hippocampus after controlled cortical impact traumatic brain injury in mice. J. Neurotrauma 31, 1194–1201. Miller-Delaney S. F., Bryan K., Das

  7. Reversal of fortune

    International Nuclear Information System (INIS)

    Harvie, W.

    1995-01-01

    A turn in the fortunes of Gulf Canada Resources Ltd following the appointment in January 1995 of J.P. Bryan as CEO, were chronicled. At that time the Company' total debt stood at $1.4 billion and a consortium of banks, the A and G Resources Corp., controlled 70% of the shares. Since 1990, the company had lost $550 million. Oil production had dropped 14.5% and gas production had dropped 21%. Over five years, the company's total asset value dropped $891 million. The company had not't paid a dividend since 1993. Bryan and Torch Energy Advisors Inc (a Houston-based acquisitions company founded by Bryan in 1981) invested $296 million to take a 25% stake in the company and options to increase its control to 43% by 1998.The series of deals, acquisitions, layoffs, and debt restructuring apparently worked. It gave Gulf Canada some room to increase capital spending, and to reduce its costs by about $100 million. With revenue enhancement, it put Gulf on solid financial ground for the first time in years

  8. The Evolution and Extinction of the Dinosaurs

    Science.gov (United States)

    Fastovsky, David E.; Weishampel, David B.

    2005-02-01

    Written for non-specialists, this detailed survey of dinosaur origins, diversity, and extinction is designed as a series of successive essays covering important and timely topics in dinosaur paleobiology, such as "warm-bloodedness," birds as living dinosaurs, the new, non-flying feathered dinosaurs, dinosaur functional morphology, and cladistic methods in systematics. Its explicitly phylogenetic approach to the group is that taken by dinosaur specialists. The book is not an edited compilation of the works of many individuals, but a unique, cohesive perspective on Dinosauria. Lavishly illustrated with hundreds of new, specially commissioned illustrations by John Sibbick, world-famous illustrator of dinosaurs, the volume includes multi-page drawings as well as sketches and diagrams. First edition Hb (1996): 0-521-44496-9 David E. Fastovsky is Professor of Geosciences at the University of Rhode Island. Fastovsky, the author of numerous scientific publications dealing with Mesozoic vertebrate faunas and their ancient environments, is also scientific co-Editor of Geology. He has undertaken extensive fieldwork studying dinosaurs and their environments in Montana, North Dakota, Arizona, Mexico, and Mongolia. David B. Weishampel is a professor at the Center for Functional Anatomy and Evolution at Johns Hopkins University, School of Medicine. Weishampel is best known for discovering, researching, and naming several rare European dinosaur species. During the 1980s Weishampel gained fame for his work with American paleontologist Jack Horner and later named the famous plant-eating, egg-laying Orodromeus, Horner. Now, a decade after his pioneering studies with Horner, Weishampel is most widely known for his current work on the Romanian dinosaur fauna. He is the author and co-author of many titles, including The Dinosaur Papers, 1676-1906 (Norton, 2003); The Dinosauria, (University of California, 1990); and Dinosaurs of the East Coast, (Johns Hopkins University Press, 1996).

  9. Comparison Between Ultrasound-Guided Supraclavicular and Interscalene Brachial Plexus Blocks in Patients Undergoing Arthroscopic Shoulder Surgery: A Prospective, Randomized, Parallel Study.

    Science.gov (United States)

    Ryu, Taeha; Kil, Byung Tae; Kim, Jong Hae

    2015-10-01

    Although supraclavicular brachial plexus block (SCBPB) was repopularized by the introduction of ultrasound, its usefulness in shoulder surgery has not been widely reported. The objective of this study was to compare motor and sensory blockades, the incidence of side effects, and intraoperative opioid analgesic requirements between SCBPB and interscalene brachial plexus block (ISBPB) in patients undergoing arthroscopic shoulder surgery. Patients were randomly assigned to 1 of 2 groups (ISBPB group: n = 47; SCBPB group: n = 46). The side effects of the brachial plexus block (Horner's syndrome, hoarseness, and subjective dyspnea), the sensory block score (graded from 0 [no cold sensation] to 100 [intact sensation] using an alcohol swab) for each of the 5 dermatomes (C5-C8 and T1), and the motor block score (graded from 0 [complete paralysis] to 6 [normal muscle force]) for muscle forces corresponding to the radial, ulnar, median, and musculocutaneous nerves were evaluated 20 min after the brachial plexus block. Fentanyl was administered in 50 μg increments when the patients complained of pain that was not relieved by the brachial plexus block. There were no conversions to general anesthesia due to a failed brachial plexus block. The sensory block scores for the C5 to C8 dermatomes were significantly lower in the ISBPB group. However, the percentage of patients who received fentanyl was comparable between the 2 groups (27.7% [ISBPB group] and 30.4% [SCBPB group], P = 0.77). SCBPB produced significantly lower motor block scores for the radial, ulnar, and median nerves than did ISBPB. A significantly higher incidence of Horner's syndrome was observed in the ISBPB group (59.6% [ISBPB group] and 19.6% [SCBPB group], P blocks. However, SCBPB produces a better motor blockade and a lower incidence of Horner's syndrome than ISBPB.

  10. Health promotion lifestyles of women experiencing crises.

    Science.gov (United States)

    Alley, N; Macnee, C; Aurora, S; Alley, A; Hollifield, M

    1998-01-01

    Women who are experiencing crisis situations, including homelessness, are often perceived as passive victims of their social, economic, and personal circumstances. A few studies have challenged the stereotype of homeless women as passive victims and demonstrated that they are active in seeking solutions to their problems (Hodnicki, Horner, & Boyle, 1992; Montgomery, 1994; Thrasher & Mowbray, 1995). This study surveyed women receiving assistance at a nurse-managed clinic that serves a homeless population to determine their health promotion strategies. On the basis of this study's findings, health care providers are encouraged to recognize and build on the strengths of women in crises at both the individual and community levels of care.

  11. Progressively Communicating Rich Telemetry from Autonomous Underwater Vehicles via Relays

    Science.gov (United States)

    2012-06-01

    like the JASON II[31] or Nereus[12] Remotely Operated Vehicles (ROVs), AUV sensor data is typically inaccessible until after the vehicle has been...Bowen, M. Heintz, M. Naiman, C. Taylor, W. Seller, J.C. How- land, and L.L. Whitcomb. Jason 2: a review of capabilities. In EOS: Trans. Amer...Sousa, M. Correia, H. Ferreira, R. Goncalves, R. Martins, D.P. Horner, A.J. Healey , G.M. Goncalves, and J.B. Sousa. AUV control and communication

  12. “Free Water” as Commodity: The Paradoxes of Durban’s Water Service Transformations

    OpenAIRE

    Loftus, A

    2004-01-01

    In September 2002, an article in the Johannesburg Sunday Times declared a “torrent of praise for water man” Neil Macleod—the executive director of eThekwini Water Services (eTWS). The paper went on to extol his tremendous efforts and ingenuity “in turning around Durban’s water woes” (Horner 2002). eThekwini Municipality’s own publication, METRObeat, “saluted” Macleod and his department for having transformed the city’s crumbling water network and having ensured that “Durban leads the way in ...

  13. La intervenció psicopedagògica en els trastorns de conducta en l'escola de primària

    OpenAIRE

    Mateu Soler, Anna

    2012-01-01

    Després d'una introducció a definir què són els trastorns de conducta, quines són les seves característiques, motius pels quals es poden donar... el treball dóna un seguir de pautes, com a ajuda, per tal de poder fer front a aquests trastorns, a les aules de les escoles de primària, a partir de la teoria del Suport Conductual Positiu exposat per Horner.

  14. Synthesis, Structure and Fluorescence Properties of 5,17-Distyryl-25,26,27,28-tetraproproxycalix[4]arenes in the Cone Conformation

    DEFF Research Database (Denmark)

    Larsen, Mogens; Krebs, Frederik C; Jørgensen, Mikkel

    1998-01-01

    The HWE (Horner-Wadsworth-Emmons) reaction performed on the easily obtainable 5,17-diformyl- calix[4]arenes (cone) with arylmethyl phosphorus ylides yielded 5,17-distyryl-25,26,27, 28-tetrapropoxycalix[4]arenes (cone) in high yield and purely in the E/E configuration. Compounds 2-5 were prepared...... this way containing bromine. Subsequent bromine-lithium exchange and reaction with trimethoxyborane yielded the boryl- substituted 5,17-distyrylcalix[4] arenes 6-7a. The structures of 3, 5, and 7a were determined by X-ray diffraction. The photophysical properties of 2 were established by absorption...

  15. Positive Behavioral Interventions and Support as Behavior Analysis in Practice: Why Is This Even Controversial?

    Science.gov (United States)

    Jarmolowicz, David P; Tetreault, Allison S

    2015-05-01

    The inclusion of Positive Behavioral Intervention and Supports as a type of applied behavior analysis has often spurred considerable controversy. This controversy seems related to at least three areas of contention: measurement issues, views on aversive control, and the overall target of treatment. The present paper discusses these three areas in light of Horner and Sugai's target article and the current state of the field of applied behavior analysis. In the end, the authors are left wondering why this is even an ongoing controversy.

  16. Facebook: can it be a diagnostic tool for neurologists?

    Science.gov (United States)

    Mittal, Manoj K; Sloan, Jeff A; Rabinstein, Alejandro A

    2012-01-01

    A 56-year-old woman presented with acute ischaemic stroke with NIHSS 13. She had right eye ptosis and miosis. She and her husband were not sure if her facial features were different than usual. With her consent, we compared her face with her pictures on Facebook. In the absence of any ptosis or miosis in her pictures, she was diagnosed with acute Horner syndrome. Facebook may be a useful tool for the neurologists to define the timing of facial neurological signs. PMID:22914235

  17. Synthesis of the C(18)-C(34) fragment of amphidinolide C and the C(18)-C(29) fragment of amphidinolide F.

    Science.gov (United States)

    Roy, Sudeshna; Spilling, Christopher D

    2010-11-19

    A convergent synthesis of the C(18)-C(34) fragment of amphidinolide C and the C(18)-C(29) fragment of amphidinolide F is reported. The approach involves the synthesis of the common intermediate tetrahydrofuranyl-β-ketophosphonate via cross metathesis, Pd(0)-catalyzed cyclization, and hydroboration-oxidation. The β-ketophosphonate was coupled to three side chain aldehydes using a Horner-Wadsworth-Emmons (HWE) olefination reaction to give dienones, which were reduced with l-selectride to give the fragments of amphidinolide C and F.

  18. Synthesis of the C(18)–C(34) Fragment of Amphidinolide C and the C(18)–C(29) Fragment of Amphidinolide F

    Science.gov (United States)

    Roy, Sudeshna; Spilling, Christopher D.

    2010-01-01

    A convergent synthesis of the C(18)–C(34) fragment of amphidinolide C and the C(18)–C(29) fragment of amphidinolide F is reported. The approach involves the synthesis of the common intermediate tetrahydrofuranyl-β-ketophosphonate via cross metathesis, Pd(0)-catalyzed cyclization and hydroboration-oxidation. The β-ketophosphonate was coupled to three side chain aldehydes using a Horner-Wadsworth-Emmons (HWE) olefination reaction to give dienones, which were reduced with L-selectride to give the fragments of amphidinolide C and F. PMID:21028791

  19. Percutaneous phenol block of the upper thoracic sympathetic chain with computed tomography guidance. A new technique

    Energy Technology Data Exchange (ETDEWEB)

    Dondelinger, R.F.; Kurdziel, J.C.

    Twenty-one percutaneous neurolyses of the upper thoracic sympathetic chain were performed in 12 patients with CT guidance by a single injection of 1 to 3 ml of phenol at the level of Th3. Results were assessed after a follow-up period varying from 4 to 33 months. Three patients with hyperhidrosis had immediate and complete disappearance of symptoms, but only one patient remained dry. In 7/14 procedures done for Raynaud's disease symptoms disappeared or diminished. These long term results are competitive with surgery. Three transitory Horner syndromes and one pneumothorax occurred.

  20. Video-Assisted Thoracic Sympathectomy for Hyperhidrosis.

    Science.gov (United States)

    Milanez de Campos, Jose Ribas; Kauffman, Paulo; Gomes, Oswaldo; Wolosker, Nelson

    2016-08-01

    By the 1980s, endoscopy was in use by some groups in sympathetic denervation of the upper limbs with vascular indications. Low morbidity, cosmetic results, reduction in the incidence of Horner syndrome, and the shortened time in hospital made video-assisted thoracic sympathectomy (VATS) better accepted by those undergoing treatment for hyperhidrosis. Over the last 25 years, this surgical procedure has become routine in the treatment of hyperhidrosis, leading to a significant increase in the number of papers on the subject in the literature. Copyright © 2016 Elsevier Inc. All rights reserved.

  1. Heterochromia

    Directory of Open Access Journals (Sweden)

    Berna Başarır

    2014-01-01

    Full Text Available Heterochromia is a condition of color difference between the two eyes. It is composed by the words heteros (different and chromos (color. It can either be sporadic or benign but also can be an indicator of an eye disease. The abnormal iris can be hypochrome or hyperchrome. It can be congenital or acquired. Some diseases such as Horner syndrome, Fuchs’ heterochromic iridocyclitis, oculodermal melanocytosis, Waardenburg syndrome, unilateral topical use of prostaglandins, siderosis can be an etiological factor of heterochromia. (Turk J Ophthalmol 2014; 44: 68-71

  2. School-Wide PBIS: Extending the Impact of Applied Behavior Analysis. Why is This Important to Behavior Analysts?

    Science.gov (United States)

    Putnam, Robert F; Kincaid, Donald

    2015-05-01

    Horner and Sugai (2015) recently wrote a manuscript providing an overview of school-wide positive behavioral interventions and supports (PBIS) and why it is an example of applied behavior analysis at the scale of social importance. This paper will describe why school-wide PBIS is important to behavior analysts, how it helps promote applied behavior analysis in schools and other organizations, and how behavior analysts can use this framework to assist them in the promotion and implementation of applied behavior analysis at both at the school and organizational level, as well as, the classroom and individual level.

  3. Villaret syndrome and lung adenocarcinoma: an unusual association

    Directory of Open Access Journals (Sweden)

    Juan José Canciani

    2017-10-01

    Full Text Available Villaret syndrome is defined by the affection of the glossopharyngeal (IX, vagal (X, accessory (XI and hypoglossal (XII cranial nerves associated with ipsilateral Horner syndrome. It is caused by the compression of these nerves and the neighboring sympathetic plexus fibers at the base of the skull, particularly in the retroparotid space. Even though the invasion of the central nervous system in patients with advanced lung cancer is a frequent and well known occurrence, this particular symptomatic association is extremely rare. We are reporting the case of a newly diagnosed lung adenocarcinoma patient who is simultaneously developing this syndrome.

  4. Air & Space Power Journal. Volume 19, Number 3, Fall 2005

    Science.gov (United States)

    2005-09-01

    use of the Internet , audio- and videotapes released to the media by al-Qaeda leaders, or even through more creative means. However, as...2. Tom Clancy with Chuck Horner, Every Man a Tiger (New York: Putnam, 1999), 274–75. 3. Ibid., 274. 4. See Comodoro Rubén Oscar Moro, Historia ... del Conflicto del Atlántico Sur (La Guerra Inaudita II) (Buenos Aires, Argentina: Air War School, August 1997). 5. Ibid., 4. 6. See Comodoro José C

  5. Silver-Catalyzed Aldehyde Olefination Using Siloxy Alkynes.

    Science.gov (United States)

    Sun, Jianwei; Keller, Valerie A; Meyer, S Todd; Kozmin, Sergey A

    2010-03-20

    We describe the development of a silver-catalyzed carbonyl olefination employing electron rich siloxy alkynes. This process constitutes an efficient synthesis of trisubstituted unsaturated esters, and represents an alternative to the widely utilized Horner-Wadsworth-Emmons reaction. Excellent diastereoselectivities are observed for a range of aldehydes using either 1-siloxy-1-propyne or 1-siloxy-1-hexyne. This mild catalytic process also enables chemoselective olefination of aldehydes in the presence of either ester or ketone functionality. Furthermore, since no by-products are generated, this catalytic process is perfectly suited for development of sequential reactions that can be carried out in a single flask.

  6. 2,5-Bis{2,2-bis[4-(dimethylaminophenyl]ethenyl}-N,N′-diphenyl-N,N′-dipropylbenzene-1,4-diamine

    Directory of Open Access Journals (Sweden)

    Volker Schmitt

    2011-04-01

    Full Text Available The title compound, C60H68N6, was prepared by Horner olefination of a terephthaldialdehyde and a diarylmethyl phosphonate. There is one half-molecule, located on an inversion centre, in the asymmetric unit. The dihedral angle between the plane of the vinylene unit and the central ring is 36.79 (15°, while those between the vinylene unit and the lateral phenyl rings are 53.04 (10 and 53.74 (9°.

  7. Dithioacetals as an Entry to Titanium-Alkylidene Chemistry: A New and Efficient Carbonyl Olefination.

    Science.gov (United States)

    Breit, Bernhard

    1998-03-02

    Wittig, Horner-Wadsworth-Emmons, Julia-Lythgoe, Tebbe, Grubbs, and Petasis-when it comes to carbonyl olefinations, these names are familiar to all chemistry students. In the future, the name Takeda will probably have to be added to this list. His recent work on the formation of titanium-alkylidene species from dithioacetals has provided organic chemists with a remarkable method for carbonyl olefination that is generally applicable under neutral to Lewis acidic conditions. © 1998 WILEY-VCH Verlag GmbH, Weinheim, Fed. Rep. of Germany.

  8. ALTERNATIVE AND COMPLEMENTARY SYNTHETIC APPROACHES TO β CARBOXY-α-METHYLENE-γ-BUTYROLACTONE ETHYL ESTERS

    Directory of Open Access Journals (Sweden)

    Gwenaëlle Liberge

    2011-12-01

    Full Text Available Alternative synthetic approaches to a variety of β substituted and carboxylated α-methylene-γ-butyrolactones have been developed. In the first approach the mandatory methylene unit was incorporated on precursor compounds at early stage of the synthesis on reliance with Horner-Emmons protocol. In the alternative approach which further tolerates multifarious substituents at γ-position of the lactone template the unsaturated moiety α to the lactone carbonyl group is connected at a later stage through a deprotonation / methoxymethylation / elimination sequence.

  9. Location and tension of the medial palpebral ligament.

    Science.gov (United States)

    Hwang, Kun; Huan, Fan; Nam, Yong Seok; Han, Seung Ho; Kim, Dae Joong

    2013-11-01

    The aim of this study was to elucidate the precise anatomic location and tension of the medial palpebral ligament (MPL). Eleven hemifaces of 10 fresh Korean adult cadavers were used in this study. Nine specimens were used for measurement of dissection and tension, and 2 were used for histologic study. Measurements of tensile strength of each part of the MPL and Horner muscle were performed using a force gauge.The MPL consisted of 2 layers in all specimens dissected. The superficial layer of the palpebral ligament (SMPL) was observed from the anterior lacrimal crest to the upper and lower tarsal plates. The deep layer of the palpebral ligament (DMPL) lay from the anterior lacrimal crest to the posterior lacrimal crest, covering the lacrimal sac. The Horner muscle was observed at the posterior lacrimal crest just lateral to the attachment of the DMPL and ran laterally to the tarsal plate deep to the SMPL. The SMPL began at 4.5 ± 2.3 mm lateral to the nasomaxillary suture line to the upper and lower tarsal plates. Its transverse length was 9.6 ± 1.5 mm, and vertical width was 2.4 ± 0.7 mm, and its thickness was 4.5 ± 2.3 mm. The transverse length of the DMPL was 3.7 ± 0.4 mm, and its vertical width was 2.9 ± 1.3 mm, with a thickness of 0.3 ± 0.1 mm. The transverse length of the Horner muscle was 7.6 ± 1.9 mm, and its vertical width was 4.06 ± 1.5 mm, with a thickness of 0.4 ± 0.1 mm. The tensile strength of the SMPL was 13.4 ± 3.2 N, that of the DMPL was 4.1 ± 1.7 N, and that for Horner muscle was 9.0 ± 3.1 N. The tensile strength of the SMPL was significantly higher than that of the DMPL (P = 0.003).We reconfirmed that the MPL consisted of 2 layers: superficial layer and deep layer. Our results might be of use in surgeries of the medial canthi.

  10. Urgences en neuro-ophtalmologie

    DEFF Research Database (Denmark)

    Caignard, A.; Leruez, S.; Milea, D.

    2017-01-01

    related to a partial third nerve palsy with pupillary involvement may reveal an intracranial aneurysm. Abnormalities of conjugate gaze may reveal an inflammatory or ischemic lesion, most often of the brainstem. An intracranial tumor may also manifest itself as a single or multiple oculomotor palsy......, or causing various visual field defects, due to optic nerve, chiasm or retrochiasmal involvement. Arteritic anterior ischemic optic neuropathy may be the first manifestation of giant cell arteritis, prompting rapid treatment with steroids to prevent contralateral involvement. A (painful) Horner syndrome may...

  11. Caudal cervical disc protrusion in a Bengal tiger (Panthera tigris tigris).

    Science.gov (United States)

    Lambrechts, N E; Berry, W L

    2000-09-01

    A young adult male white Bengal tiger (Panthera tigris tigris) presented with hindlimb ataxia. Cervical and lumbar myelography revealed a compressive lesion of the cord at C(6-7). Corticosteroid therapy and confinement failed to provide lasting remission of signs. A modified, inverted cone ventral slot decompression was used to remove the fibrous material causing cord compression at C(6-7). Temporary Horner's syndrome and laryngeal paresis developed postsurgically because of excessive tissue retraction. The animal recovered normal ambulatory function 6 wk after surgery.

  12. Carotid dissections

    Energy Technology Data Exchange (ETDEWEB)

    Mueller-Forell, W.; Rothacher, G.; Kraemer, G.

    1989-09-01

    In younger patients, the clinical symptoms of sudden unilateral headache and facial pain, often combined with Horner syndrome and the cerebrovascular symptoms of TIAs or stroke, should indicate the diagnosis of spontaneous carotid dissection. Angiographic findings can verify this diagnosis, showing various signs of eccentric, narrowing stenosis, false lumen, pseudoaneurysms, or complete occlusion. In addition to noninvasive Doppler ultrasonography, B-mode and Duplex investigations, although more or less nonspecific, give some indications of the diagnosis; modern imaging techniques, especially MRI, can image the intramural hematoma directly. As the hematoma is the source of the intracranial emboli, the therapy of choice in this rarely diagnosed disease should be anticoagulation. (orig.).

  13. Sympathicotomy for Isolated Facial Blushing: A Randomized Clinical Trial

    DEFF Research Database (Denmark)

    Licht, P. B.; Pilegaard, Hans; Ladegaard, L.

    2012-01-01

    Background. Facial blushing is one of the most peculiar of human expressions. The pathophysiology is unclear, and the prevalence is unknown. Thoracoscopic sympathectomy may cure the symptom and is increasingly used in patients with isolated facial blushing. The evidence base for the optimal level...... experienced Horner's syndrome. Compensatory sweating occurred in 93% of patients, gustatory sweating 36%, and dry hands in 66%; 13% of patients regretted the operation despite thorough preoperative selection and information. Conclusions. There were no significant differences in local effects or side effects...

  14. Clinical manifestations of neuroblastoma with head and neck involvement in children.

    Science.gov (United States)

    Alvi, Sameer; Karadaghy, Omar; Manalang, Michelle; Weatherly, Robert

    2017-06-01

    The purpose of our study is to review our 15-year experience with pediatric patients who have been diagnosed with neuroblastoma, and to determine their most frequent head and neck manifestations and symptoms. Retrospective chart review of electronic medical record. An academic, tertiary care pediatric hospital. IRB approval from the Office of Research Integrity at Children's Mercy Hospital was obtained. The hospital tumor database was analyzed to identify patients with neuroblastoma, ganglioneuroblastoma, and esthesioneuroblastoma diagnosed between 1997 and 2012. We recorded the various clinical signs and symptoms these patients displayed at their initial presentation, focusing on patients with head and neck involvement. We then determined the relative incidence of these various findings. Our review yielded 118 patients diagnosed with neuroblastoma, ganglioneuroblastoma, or esthesioneuroblastoma over our 15 year study period. 7 of the 118 patients were diagnosed with primary tumors of the head and neck. Another 19 patients had metastatic head and neck involvement. For those with primary disease, presence of a neck mass and signs of Horner's syndrome were the most common findings. For metastatic disease, craniofacial bony metastasis was the most frequent finding in our study. Based on our data, there are a handful of findings that occur frequently in pediatric head and neck neuroblastoma. Any persistent neck mass, unexplained Horner's syndrome, or periorbital ecchymosis should be carefully evaluated. This study should serve as an aid for the otolaryngologist to be aware of the possible manifestations of this malignancy in children. Copyright © 2017 Elsevier B.V. All rights reserved.

  15. Measurement invariance of an instrument assessing sustainability of school-based universal behavior practices.

    Science.gov (United States)

    Mercer, Sterett H; McIntosh, Kent; Strickland-Cohen, M Kathleen; Horner, Robert H

    2014-06-01

    The purpose of the study was to examine the extent to which the School-Wide Universal Behavior Sustainability Index: School Teams (SUBSIST; McIntosh, Doolittle, Vincent, Horner, & Ervin, 2009), a measure of school and district contextual factors that promote the sustainability of school practices, demonstrated measurement invariance across groups of schools that differed in length of time implementing school-wide Positive Behavioral Interventions and Supports (PBIS; Sugai & Horner, 2009), student ethnic composition, and student socioeconomic status (SES). School PBIS team members and district coaches representing 860 schools in 14 U.S. states completed the SUBSIST. Findings supported strong measurement invariance, for all items except 1, of a model with two school-level factors (School Priority and Team Use of Data) and 2 district-level factors (District Priority and Capacity Building) across groups of schools at initial implementation, institutionalization, and sustainability phases of PBIS implementation. Schools in the sustainability phase were rated significantly higher on School Priority and Team Use of Data than schools in initial implementation. Strong measurement invariance held across groups of schools that differed in student ethnicity and SES. The findings regarding measurement invariance are important for future longitudinal investigations of factors that may promote the sustained implementation of school practices. PsycINFO Database Record (c) 2014 APA, all rights reserved.

  16. Is Tadpole Pupil in an Adolescent Girl Caused by Denervation Hypersensitivity?

    Science.gov (United States)

    Hansen, Jonas Kjeldbjerg; Møller, Hans Ulrik

    2017-06-01

    Tadpole pupil is a rarely encountered phenomenon caused by episodic, segmental iris dilator muscle spasm of short duration (2-15 minutes), occurring in clusters without a known precipitating factor. It has most commonly been described in women aged 28 to 48 years. A few hypotheses on pathogenesis have been discussed but none has been proved. Here, we present an adolescent girl with bilateral tadpole pupil that appeared during physical exercise. This is the first pediatric case of tadpole pupil, not caused by preceding surgery, to be published. Based on (1) this case in which tadpole pupil developed when the norepinephrine level rose during exercise, (2) the high ratio of patients with tadpole pupil who concurrently have or later develop Horner syndrome, in which denervation hypersensitivity is well described, (3) a previous report of a patient with both tadpole pupil and Horner syndrome who had denervation hypersensitivity on pharmacological testing, (4) a 29-year-old man with unilateral tadpole pupil induced by exercise, and (5) a 19-year-old man with bilateral tadpole pupil and possible autonomic neuropathy, we suggest denervation hypersensitivity as a probable pathogenic mechanism causing tadpole pupil. In addition, a suggestion for investigations to be performed in future pediatric cases is provided. Georg Thieme Verlag KG Stuttgart · New York.

  17. Integrating patient satisfaction into performance measurement to meet improvement challenges.

    Science.gov (United States)

    Smith, J E; Fisher, D L; Endorf-Olson, J J

    2000-05-01

    A Value Compass has been proposed to guide health care data collection. The "compass corners" represent the four types of data needed to meet health care customer expectations: appropriate clinical outcomes, improved functional status, patient satisfaction, and appropriate costs. Collection of all four types of data is necessary to select processes in need of improvement, guide improvement teams, and monitor the success of improvement efforts. INTEGRATED DATA AT BRYANLGH: BryanLGH Medical Center in Lincoln, Nebraska, has adopted multiple performance measurement systems to collect clinical outcome, financial, and patient satisfaction data into integrated databases. Data integration allows quality professionals at BryanLGH to identify quality issues from multiple perspectives and track the interrelated effects of improvement efforts. A CASE EXAMPLE: Data from the fourth quarter of 1997 indicated the need to improve processes related to cesarean section (C-section) deliveries. An interdisciplinary team was formed, which focused on educating nurses, physicians, and the community about labor support measures. Physicians were given their own rates of C-section deliveries. The C-section rate decreased from 27% to 19%, but per-case cost increased. PickerPLUS+ results indicated that BryanLGH obstetric patients reported fewer problems with receiving information than the Picker norm, but they reported more problems with the involvement of family members and friends. The data collected so far have indicated a decrease in the C-section rate and a need to continue to work on cost and psychosocial issues. A complete analysis of results was facilitated by integrated performance management systems. Successes have been easily tracked over time, and the need for further work on related processes has been clearly identified.

  18. Clinical comparison of 2 implantation systems for single-level cervical disk replacement.

    Science.gov (United States)

    Shi, Rui; Li, Juan; Liu, Hao; Ding, Chen; Hu, Tao; Li, Tao; Gong, Quan

    2014-02-01

    The safety and effectiveness of 2 implantation systems for single-segment cervical disk replacement-the Bryan Cervical Disc System (Medtronic Inc, Minneapolis, Minnesota) and the ACCEL system (Medtronic Inc)-have not been clinically compared. A prospective, nonrandomized controlled study in consecutive patients with a minimum 2-year follow-up was performed. Fifty patients with single-level cervical disk degeneration who responded poorly to conservative treatment and underwent Bryan Cervical Disc replacement were involved. Fifty patients were included (24 in group A [Bryan Cervical Disc System] and 26 in group B [ACCEL system]).The patients' visual analog scale scores, Neck Disability Index (NDI) scores, Short Form 36 (SF-36) scores, Odom scores, operative time, blood loss, and complications were compared. Patients' baseline statuses were similar (P>.05). Visual analog scale for neck and arm pain, NDI, and SF-36 were significantly improved postoperatively (P.05). All Odom scores were better than good. Mean operative time and average blood loss in group A (173±42.5 minutes and 250±159.8 mL, respectively), were both significantly higher than the values in group B (137.5±19.3 minutes and 138.1±86.7 mL, respectively) (Pprosthesis; there was no significant difference in the total complication rates between the 2 groups (P>.05). The 2 implantation systems displayed equal clinical effectiveness and safety, but the ACCEL system appears to have the advantages of shorter operative time and less blood loss. Copyright 2014, SLACK Incorporated.

  19. Naturally occurring secondary nutritional hyperparathyroidism in cattle egrets (Bubulcus ibis) from Central Texas

    Science.gov (United States)

    Phalen, D.N.; Drew, M.L.; Contreras, C.; Roset, K.; Mora, M.

    2005-01-01

    Naturally occurring secondary nutritional hyperparathyroidism is described in the nestlings of two colonies of cattle egrets (Bubulcus ibis) from Central Texas (Bryan and San Antonio, Texas, USA). Nestlings from a third colony (Waco, Texas, USA) were collected in a subsequent year for comparison. Birds from the first two colonies consistently had severe osteopenia and associated curving deformities and folding fractures of their long bones. These birds also had reduced bone ash, increased osteoclasia, a marked decrease in osteoblast activity, variable lengthening and shortening of the hypertrophic zone of the epiphyseal cartilage, decreased and disorganized formation of new bone, and a marked hypertrophy and hyperplasia of the parathyroid glands as compared to birds collected from the third colony. Fibrous osteodystrophy was found in all of the birds from San Antonio and Bryan. Evidence of moderate to severe calcium deficiency was also identified in 33% of the cattle egrets collected from Waco. Gut contents of affected chicks contained predominately grasshoppers and crickets; vertebrate prey items were absent from the Bryan birds. Grasshoppers and crickets collected from fields frequented by the adult egrets in 1994 had 0.12-0.28% calcium and 0.76-0.81% phosphorus. Pooled grasshoppers and crickets collected during a subsequent wet early spring averaged 0.24% calcium and 0.65% phosphorus. Although the phosphorus content of the insect prey was adequate for growth, calcium was approximately one-third the minimum calcium requirement needed for growth for other species of birds. It was postulated that cattle egrets breeding in Central Texas have expanded their range into habitat that contains less vertebrate prey, and as a result, many nestling egrets are being fed diets that contain suboptimal calcium. Therefore, in years where vertebrate prey is scarce and forage for insect prey is reduced in calcium, nestling egrets are at risk for developing secondary nutritional

  20. Improving Universal Suicide Prevention Screening in Primary Care by Reducing False Negatives

    Science.gov (United States)

    2016-09-01

    CAIB meeting on 19-FEB-2016 to increase participant enrollment 10. New research assistant ( William Russell) added to Hill AFB to increase participant...Investigator 0.17 Allen, Michael Co-Investigator 0.10 Clemans, Tracy Co-Investigator 0.05 May, Alexis Postdoctoral Research Coordinator 1.00 Harris...Julia Research Manager 1.00 Bryan, AnnaBelle Evaluator 0.10 Hinkson, Kent Evaluator 1.00 Cable, Emily Evaluator 0.50 Williams , Sean Evaluator 0.50

  1. Evaluation of the Applicability of HTML5 for Mobile Applications in Resource-Constrained Edge Environments

    Science.gov (United States)

    2014-07-01

    Evaluation of the Applicability of HTML5 for Mobile Applications in Resource- Constrained Edge Environments Bryan Yan Grace A. Lewis July...i Table of Contents Abstract vii 1 Introduction 1 2 Background 2 2.1 Edge Applications 2 2.2 HTML5 Mobile Applications 3 2.3 Web Application...Bridging Frameworks 3 3 Initial Evaluation: HTML5 5 3.1 Geolocation 6 3.2 Wi-Fi Communication 6 3.3 Bluetooth Communication 9 3.4 Background

  2. Brine disposal options for geopressed methane development. Annual report

    Energy Technology Data Exchange (ETDEWEB)

    Tatom, F.B.; Mullen, M.W.

    1982-12-01

    Brine disposal practices associated with conventional oil and gas field operations were examined along with brine disposal procedures relevant to the Strategic Petroleum Reserve (SPR) program. Four specific case studies were carried out involving brine disposal from North Markham-North Bay City oil field, Bryan Mound SPR facility, Louisiana Offshore Oil Port (LOOP), and Sweet Lake Prospect geopressured test well. A review of all available disposal options was completed resulting in the conclusion that the two most suitable options for geopressured brine disposal are subsurface injection and offshore submerged discharge. These two options were examined on engineering, environmental, and economic considerations.

  3. Mexico’s Central American Policy: Apologies, Motivations, and Principles.

    Science.gov (United States)

    1982-03-15

    Entre Mdxico y Nicaragua," El Mercado de Valores. May 18, 1981, p. 510. 14. See Errol D. Jones and David LaFrance, "Mexico’s Foreign Affairs Under...Medina Luna, "Proyecci6n de Mixico sobre Centroamerica," in Centro de Estudios Internacionales, Mexico y America Latina: La Neuva Poliica Exterior, Mdxico...p. 18. 21. The quotation is from Bryan, p. 36. For the text of the petroleum agreement, see "Programa de Cooperaci6n Energitica," El Mercado de

  4. Battle of Kursk: The Operational Art and Principles of War

    Science.gov (United States)

    2011-04-01

    pg 246 27 Chant, Christopher. 1975. Kursk. Great battles. London: Almark Publishing, pg 67 28 Overy, R. J. 1997. Russia’s war: blood upon the snow ...House of the Ministry of Defense of the USSR. 45 Mawdsley, Evan. 2005. Thunder in the East: the Nazi-Soviet war, 1941-1945. London; New York: Hodder...the Eastern.front, 1941. Novato, CA: Presidio Press. Fugate, Bryan I., and L. S. Dvoretski. 1997. Thunder on the Dnepr: Zhukov-Stalin and the defeat

  5. The Roman Empire - The Third Century Crisis and Crisis Management

    Science.gov (United States)

    2012-04-04

    The ancient Greek city of Byzantium appeared to be the ideal city to house the remnants of an empire that emerged from a prolonged crisis . John...CC1ltury Crisis and Crisis Management N/A 5b. GRANT NUMBER NIA 5c. PROGRAM ELEMENT NUMBER N/A 6. AUTHOR(S) 6ə. PROJECT NUMBER MAJOR BryanT. Woody N...Unlimited 13. SUPPLEMENTARY NOTES N/A 14. ABSTRACT The tumultuous period within the Roman Empire, known as the ’ Crisis of Third Century’ was anllncienl

  6. Non-Equilibrium Plasma Applications for Water Purification Supporting Human Spaceflight and Terrestrial Point-of-Use

    Science.gov (United States)

    Blankson, Isaiah M.; Foster, John E.; Adamovsky, Grigory

    2016-01-01

    2016 NASA Glenn Technology Day Panel Presentation on May 24, 2016. The panel description is: Environmental Impact: NASA Glenn Water Capabilities Both global water scarcity and water treatment concerns are two of the most predominant environmental issues of our time. Glenn researchers share insights on a snow sensing technique, hyper spectral imaging of Lake Erie algal blooms, and a discussion on non-equilibrium plasma applications for water purification supporting human spaceflight and terrestrial point-of-use. The panel moderator will be Bryan Stubbs, Executive Director of the Cleveland Water Alliance.

  7. United States Air Force Summer Research Program -- 1991. High School Apprenticeship Program (HSAP) Reports, Volume 13: Wright Laboratory

    Science.gov (United States)

    1991-12-01

    me date his daughter Danielle (in about 16 years). Paul VcCarlev:: For being the ultimate mentor, and having a groovy music collec:on. Jam on, Paul...UB40, Beethoven , Bryan Adams (’verything I Do*), Oscar Peterson (with Ray Brown & Herb Ellis), and R.E.M. (yes, it does stand for Rapid Eye Movement...for the musical entertainment that helped get me through the summer. 20-9 REFERNUCES If I were to include every book and paper from which I learned

  8. 2015 Strategic Petroleum Reserve West Hackberry Well Integrity Grading Report.

    Energy Technology Data Exchange (ETDEWEB)

    Roberts, Barry L; Lord, David; Lord, Anna C. Snider; Bettin, Giorgia; Sobolik, Steven R.; Rudeen, David Keith; Eldredge, Lisa L. (FFPO); Wynn, Karen (FFPO); Checkai, Dean (FFPO); Osborne, Gerad (FFPO); Moore, Darryl (FFPO)

    2015-04-01

    This report summarizes the work performed in the prioritization of cavern access wells for remediation and monitoring at the West Hackberry Strategic Petroleum Reserve site. The grading included consideration of all 31 wells at the West Hackberry site, with each well receiving a separate grade for remediation and monitoring. Numerous factors affecting well integrity were incorporated into the grading including casing survey results, cavern pressure history, results from geomechanical simulations, and site geologic factors. The factors and grading framework used here are the same as those used in developing similar well remediation and monitoring priorities at the Big Hill and Bryan Mound Strategic Petroleum Reserve Sites.

  9. 2015 Strategic Petroleum Reserve Bayou Choctaw Well Integrity Grading Report.

    Energy Technology Data Exchange (ETDEWEB)

    Roberts, Barry L; Lord, David; Lord, Anna C. Snider; Bettin, Giorgia; Park, Byoung; Rudeen, D.K.; Eldredge, L.L.; Wynn, K.; Checkai, D.; Osborne, G.; Moore, D.

    2015-10-01

    This report summarizes the work performed in the prioritization of cavern access wells for remediation and monitoring at the Bayou Choctaw Strategic Petroleum Reserve site. The grading included consideration of all 15 wells at the Bayou Choctaw site, with each active well receiving a separate grade for remediation and monitoring. Numerous factors affecting well integrity were incorporated into the grading including casing survey results, cavern pressure history, results from geomechanical simulations, and site geologic factors. The factors and grading framework used here are the same as those used in developing similar well remediation and monitoring priorities at the Big Hill, Bryan Mound, and West Hackberry Strategic Petroleum Reserve Sites.

  10. Nucleon-nucleon scattering phase shifts. [Resonance, 0 to 800 MeV, review

    Energy Technology Data Exchange (ETDEWEB)

    Bryan, R.

    1978-01-01

    Here are presented 0 to 800 MeV nucleon-nucleon elastic and inelastic phase parameters derived by several groups: Arndt and Roper; Hoshizaki; Bugg; Bystricky, Lechanoine, and Lehar; and Bryan, Clark, and VerWest. Resonant-like behavior appears in the /sup 1/D/sub 2/ and /sup 3/F/sub 3/ states above the inelastic threshold in Hoshizaki's analysis but not in Arndt and Roper's. The np data are inadequate to permit determination of the I = O phase parameters above 600 MeV. 27 references.

  11. Deflation and relative prices: Evidence from Japan and Hong Kong

    OpenAIRE

    Gerlach, Stefan; Kugler, Peter

    2007-01-01

    We test the menu cost model of Ball and Mankiw (1994, 1995), which implies that the impact of price dispersion on inflation should differ between inflation and deflation episodes, using data for Japan and Hong Kong. We use a random cross-section sample split when calculating the moments of the distribution of price changes to mitigate the small-cross-sectionsample bias noted by Cecchetti and Bryan (1999). The parameter on the third moment is positive and significant in both countries during b...

  12. Abiks algajale jõuluvanale ئ millist muusikat kinkida / Mart Normet

    Index Scriptorium Estoniae

    Normet, Mart, 1979-

    2005-01-01

    Uutest heliplaatidest Eurythmics "Ultimate Collection", Belle & Sebastian "Push Barman To Open Old Wounds", Culture Club "Singles and Remixes", Bee Gees "Love Songs", Anastacia "Pieces Of A Draem", Ian Brown "The Greatest", Alanis Morissette "The Collection", Beastie Boys "Solid Gold Hits", Prodigy "Their Law", Celine Dion "On ne change pas", Bryan Adams "Anthology", Limp Bizkit "Greatest Hitz", Taj Mahal "The Essential Taj Mahal", Destiny's Child "#1'S", David Bowie "The Platinim Collection", John Lydon "The Best Of British", Dire Straits & Mark Knopfler "Private Investigations", Angie Stone "Stone Hits", Snoop Dogg "The Best Of Snoop Dogg"

  13. Scott Pilgrim: citações e influências visuais entre quadrinhos, cinema e jogos digitais

    Directory of Open Access Journals (Sweden)

    Furini, Liana Gross

    2011-01-01

    Full Text Available O presente artigo discute as adaptações da série de histórias em quadrinhos Scott Pilgrim, escrita e ilustrada por Bryan Lee O’Malley no filme Scott Pilgrim contra o mundo (2010, baseado na série. É feita uma análise das referências a jogos digitais e cultura pop em geral trazidas pela série e pelo filme mediado pela observação do contexto pós-moderno da visualidade da narrativa

  14. Heterotopic ossification associated with myelopathy following cervical disc prosthesis implantation.

    Science.gov (United States)

    Wenger, Markus; Markwalder, Thomas-Marc

    2016-04-01

    This case report presents a 37-year-old man with clinical signs of myelopathy almost 9 years after implantation of a Bryan disc prosthesis (Medtronic Sofamor Danek, Memphis, TN, USA) for C5/C6 soft disc herniation. As demonstrated on MRI and CT scan, spinal cord compression was caused by bony spurs due to heterotopic ossification posterior to the still moving prosthesis. The device, as well as the ectopic bone deposits, had to be removed because of myelopathy and its imminent aggravation. Conversion to anterior spondylodesis was performed. Copyright © 2015 Elsevier Ltd. All rights reserved.

  15. El Implante discal cervical como alternativa a la artrodesis en el tratamiento quirúrgico de la cervicoartrosis

    OpenAIRE

    Lafuente Baraza, Jesús

    2004-01-01

    Consultable des del TDX Títol obtingut de la portada digitalitzada Objetivo: Evaluación de la prótesis de Bryan como alternativa a la artrodesis en el tratamiento de la espondilosis cervical. Materiales y métodos: 54 pacientes consecutivos con radiculopatía o mielopatía fueron intervenidos quirúrgicamente de discectomía cervical con implantación de la prótesis discal cervical. Dichos implantes presentan medidas variables que van de 14 a 18 mm. El seguimiento se realizo a las seis semana...

  16. Building roads: an approach to the concepts of power, technology and conflicts in two Andean Countries

    OpenAIRE

    García Jerez, Francisco

    2012-01-01

    Los caminos, puentes y carreteras no sólo son mecanismos de conectividad entre dos o más puntos geográficos. La existencia de este tipo de redes de comunicación transciende su primara función comunicativa para convertirse, en palabras de Bryan Pfaffenberger, en una “tecnología de poder” y, por tanto, en un capital sujeto a disputa entre grupos. Partiendo de esta premisa, el presente artículo tiene como objetivo describir y analizar las múltiples dimensiones que supone la construcción de camin...

  17. Effects of bottom water oxygen concentrations on mercury distribution and speciation in sediments below the oxygen minimum zone of the Arabian Sea

    Digital Repository Service at National Institute of Oceanography (India)

    Chakraborty, P.; Mason, R.P.; Jayachandran, S.; Vudamala, K.; Armoury, K.; Sarkar, Arindam; Chakraborty, S.; Bardhan, P.; Naik, R.

    and degradation in aquatic ecosystems. In ACS symposium series (Vol. 835, pp. 262-297). Washington, DC; Am. Chem. S.; 1999. Bordovsky, O.K., 1965. Accumulation of organic matter in bottom sediments. Mar. Geol. 3, 33–82. Botsford, L. W., Castilla, J. C...., Peterson, C. H., 1997. The management of fisheries and marine ecosystems. Science, 277 (5325), 509-515. Broenkow, W.W. and Cline, J.D., 1969. Colorimetric determination of dissolved oxygen at low concentrations. Limnol. Oceanogr. 14(3), 450-454. Bryan...

  18. Analysis of a parallel multigrid algorithm

    Science.gov (United States)

    Chan, Tony F.; Tuminaro, Ray S.

    1989-01-01

    The parallel multigrid algorithm of Frederickson and McBryan (1987) is considered. This algorithm uses multiple coarse-grid problems (instead of one problem) in the hope of accelerating convergence and is found to have a close relationship to traditional multigrid methods. Specifically, the parallel coarse-grid correction operator is identical to a traditional multigrid coarse-grid correction operator, except that the mixing of high and low frequencies caused by aliasing error is removed. Appropriate relaxation operators can be chosen to take advantage of this property. Comparisons between the standard multigrid and the new method are made.

  19. The safety culture of the nuclear plants of Sydkraft. Appendices 5-7

    International Nuclear Information System (INIS)

    Edmondson, B.; Firing, J.A.; Nordland, O.S.; Ottne, E.

    1994-01-01

    This separate volume of appendices contains three contributions: ''Safety in Nuclear Electric'' by Bryan Edmondson, which reviews the legislation for nuclear safety in Britain, reproduces the Health and Policy Statement by Nuclear Electric, and describes the management of health and safety in the company. ''Safety in Norwegian off-shore industry'' by Joergen A. Firing, describing the safety practices of the Statoil Group and reproducing the relevant Norwegian law. ''The safety management in SAS Airline. The safety and quality in airline industries'' by O.S. Nordland and E. Ottne describing safety organization, internal control systems, and education and training in SAS

  20. Variations of (pseudo-)rotations and the Laplace-Beltrami operator on homogeneous spaces

    Energy Technology Data Exchange (ETDEWEB)

    Brezov, D. S. [Department of Mathematics, University of Architecture, Civil Engineering and Geodesy, 1 Hristo Smirnenski Blvd., 1046 Sofia (Bulgaria); Mladenova, C. D. [Institute of Mechanics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 4, 1113 Sofia (Bulgaria); Mladenov, I. M., E-mail: mladenov@bio21.bas.bg [Institute of Biophysics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 21, 1113 Sofia (Bulgaria)

    2015-10-28

    In this paper we obtain the Lie derivatives of the scalar parameters in the generalized Euler decomposition with respect to arbitrary axes under left and right deck transformations. This problem can be directly related to the representation of the angular momentum in quantum mechanics. As a particular example, we calculate the angular momentum and the corresponding quantum hamiltonian in the standard Euler and Bryan representations. Similarly, in the hyperbolic case, the Laplace-Beltrami operator is retrieved for the Iwasawa decomposition. The case of two axes is considered as well.

  1. Revisión bibliográfica :

    OpenAIRE

    Orihuela Mayor, Alejandro

    2015-01-01

    En el presente trabajo trata de ser un estudio comparativo de los tres principales manuales de anatomía, centrándose en los músculos esqueléticos principales de la locomoción humana. Dichos manuales son los reputados Anatomía y Fisiología (Gary Thibodeau, Kevin Patton), Principios de Anatomía y Fisiología (Gerard Tortora, Bryan Derrickson) y la Colección Prometheus, Texto y Atlas de Anatomía (Michael Schünke, Erik Schulte, Udo Schumacher).

  2. Counting spinning dyons in maximal supergravity: the Hodge-elliptic genus for tori

    Science.gov (United States)

    Benjamin, Nathan; Kachru, Shamit; Tripathy, Arnav

    2017-11-01

    We consider M-theory compactified on T^4 × T^2 and describe the count of spinning 1/8-BPS states. This builds on the work of Maldacena-Moore-Strominger in the physics literature. It simultaneously provides a refinement of the recent mathematical work of Bryan-Oberdieck-Pandharipande-Yin and Oberdieck-Shen, which studied (non-motivic) reduced Donaldson-Thomas invariants of abelian surfaces and threefolds. As in previous work on K3 × T^2 compactification, we track angular momenta under both the SU(2)_L and SU(2)_R factors in the 5d little group, providing predictions for the relevant motivic curve counts.

  3. Naval War College Review. Volume 67, Number 2, Spring 2014

    Science.gov (United States)

    2014-01-01

    Tropic of Cancer 20 Equator 0 140 20 120100 20 0 20 Buru B o r n e o Billiton Sumatra Pulau Simeulue Pulau Nias Pulau Siberut Pratas Island Samar...Mercenaries, Pirates, Bandits, and Empires: Private Violence in Historical Context, ed� Alejandro Colas and Bryan Mabee (New York: Columbia Univ� Press...Bandits, and Empires, ed� Colas and Mabee, pp� 55–82� 61� In line with note 2 above, this notion of the “public good” reflects the dominant discourse

  4. Archaeological Investigations at the San Gabriel Reservoir Districts Central Texas. Volume I.

    Science.gov (United States)

    1982-06-01

    Danna Allison, who wanted money per acre for rent rather than the "thirds and fourths" arrangement Mr. David preferred. Mr. and Mrs. Alvin Bryan and son...the gaping hole of the old basement which had been used as a dump through the years. It was about 1953 that Mrs. Danna Allison hired "Shorty" Renicanek...Allison states there are 6-8 pieces of furniture in his and Mr. Carradine’s possession. Mrs. Danna Allison stated that Agnes Allison Whatley and her sister

  5. Environmental and economic benefits of sustainable development

    International Nuclear Information System (INIS)

    McKay, P.; Kelly, B.; Passmore, J.

    1997-01-01

    The panel on sustainable development was moderated by Paul McKay of the Wildside Foundation. Bryan Kelly, Director of Environment and Sustainable Development at Ontario Hydro, and Jeffrey Passmore of Passmore Associates International were the panel members. Bryan Kelly described the objectives of his group's program as reducing market barriers, and get renewables on a level playing field through technological advances to ensure that ' when Ontario Hydro or its successors make decisions about new capacity, renewables will be a viable option and will not be dismissed out of hand'. To illustrate the approach, he described several ongoing research and development projects. Jeffrey Passmore reported on a study he conducted for the Canadian Wind Energy Association and Environment Canada to determine the environmental and economic benefits of wind energy in Canada. He estimated achievable wind energy potential in Canada at around 6400 MW by 2010. He stressed wind energy's potential for job creation and CO 2 reduction as the principal economic and environmental benefits

  6. Global ocean modeling on the Connection Machine

    International Nuclear Information System (INIS)

    Smith, R.D.; Dukowicz, J.K.; Malone, R.C.

    1993-01-01

    The authors have developed a version of the Bryan-Cox-Semtner ocean model (Bryan, 1969; Semtner, 1976; Cox, 1984) for massively parallel computers. Such models are three-dimensional, Eulerian models that use latitude and longitude as the horizontal spherical coordinates and fixed depth levels as the vertical coordinate. The incompressible Navier-Stokes equations, with a turbulent eddy viscosity, and mass continuity equation are solved, subject to the hydrostatic and Boussinesq approximations. The traditional model formulation uses a rigid-lid approximation (vertical velocity = 0 at the ocean surface) to eliminate fast surface waves. These waves would otherwise require that a very short time step be used in numerical simulations, which would greatly increase the computational cost. To solve the equations with the rigid-lid assumption, the equations of motion are split into two parts: a set of twodimensional ''barotropic'' equations describing the vertically-averaged flow, and a set of three-dimensional ''baroclinic'' equations describing temperature, salinity and deviations of the horizontal velocities from the vertically-averaged flow

  7. Ultra high hole mobilities in a pure strained Ge quantum well

    International Nuclear Information System (INIS)

    Mironov, O.A.; Hassan, A.H.A.; Morris, R.J.H.; Dobbie, A.; Uhlarz, M.; Chrastina, D.; Hague, J.P.; Kiatgamolchai, S.; Beanland, R.; Gabani, S.; Berkutov, I.B.; Helm, M.; Drachenko, O.; Myronov, M.; Leadley, D.R.

    2014-01-01

    Hole mobilities at low and room temperature (RT) have been studied for a strained sGe/SiGe heterostructure using standard Van der Pauw resistivity and Hall effect measurements. The range of magnetic field and temperatures used were − 14 T < B < + 14 T and 1.5 K < T < 300 K respectively. Using maximum entropy-mobility spectrum analysis (ME-MSA) and Bryan's algorithm mobility spectrum (BAMS) analysis, a RT two dimensional hole gas drift mobility of (3.9 ± 0.4) × 10 3 cm 2 /V s was determined for a sheet density (p s ) 9.8 × 10 10 cm −2 (by ME-MSA) and (3.9 ± 0.2) × 10 3 cm 2 /V s for a sheet density (p s ) 5.9 × 10 10 cm −2 (by BAMS). - Highlights: • Pure strained Ge channel grown by reduced pressure chemical vapor deposition • Maximum entropy-mobility spectrum analysis • Bryan's algorithm mobility spectrum analysis • High room temperature hole drift mobility of (3.9 ± 0.4) × 10 3 cm 2 /V s • Extremely high hole mobility of 1.1 × 10 6 cm 2 /V s at 12 K

  8. Ultra high hole mobilities in a pure strained Ge quantum well

    Energy Technology Data Exchange (ETDEWEB)

    Mironov, O.A., E-mail: OAMironov@yahoo.co.uk [Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); International Laboratory of High Magnetic Fields and Low Temperatures, 53-421 Wroclaw (Poland); Hassan, A.H.A. [Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); Department of Physics, Tripoli University, Tripoli (Libya); Morris, R.J.H.; Dobbie, A. [Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); Uhlarz, M. [High Magnetic Field Laboratory, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden (Germany); Chrastina, D. [L-NESS Politecnico di Milano, Polo di Como, Via Anzani 42, 22100 Como (Italy); Hague, J.P. [Department of Physical Sciences, The Open University, Walton Hall, Milton Keynes MK7 6AA (United Kingdom); Kiatgamolchai, S. [Department of Physics, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330 (Thailand); Beanland, R. [Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); Gabani, S. [Centre of Low Temperature Physics, Institute of Experimental Physics SAS, Košice (Slovakia); Berkutov, I.B. [B.I. Verkin Institute for Low Temperature Physics and Engineering of NAS of Ukraine, Kharkov (Ukraine); Helm, M.; Drachenko, O. [Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden (Germany); Myronov, M.; Leadley, D.R. [Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom)

    2014-04-30

    Hole mobilities at low and room temperature (RT) have been studied for a strained sGe/SiGe heterostructure using standard Van der Pauw resistivity and Hall effect measurements. The range of magnetic field and temperatures used were − 14 T < B < + 14 T and 1.5 K < T < 300 K respectively. Using maximum entropy-mobility spectrum analysis (ME-MSA) and Bryan's algorithm mobility spectrum (BAMS) analysis, a RT two dimensional hole gas drift mobility of (3.9 ± 0.4) × 10{sup 3} cm{sup 2}/V s was determined for a sheet density (p{sub s}) 9.8 × 10{sup 10} cm{sup −2} (by ME-MSA) and (3.9 ± 0.2) × 10{sup 3} cm{sup 2}/V s for a sheet density (p{sub s}) 5.9 × 10{sup 10} cm{sup −2} (by BAMS). - Highlights: • Pure strained Ge channel grown by reduced pressure chemical vapor deposition • Maximum entropy-mobility spectrum analysis • Bryan's algorithm mobility spectrum analysis • High room temperature hole drift mobility of (3.9 ± 0.4) × 10{sup 3} cm{sup 2}/V s • Extremely high hole mobility of 1.1 × 10{sup 6} cm{sup 2}/V s at 12 K.

  9. TechPort Featured at Glenn Research Center's Technology Day

    Science.gov (United States)

    Owens, Jeannette P.; Diem, Priscilla S.

    2016-01-01

    The NASA Technology Portfolio (TechPort) System was featured at NASA Glenn Research Center's Technology Day on May 24, 2016. This event, which coincided with GRC's 75th Anniversary celebration, drew nearly 250 registered guests including aerospace and technology representatives, local business leaders, state and local government officials, and members of academia. GRC's Director of the Office of Technology Incubation and Innovation and Center Chief Technologist, John Sankovic, presented the opening remarks. Several technical and business-focused panel sessions were convened. NASA's Associate Administrator for the Space Technology Mission Directorate, Steve Jurczyk, GRC's Director of Space Flight Systems, Bryan Smith, and NASA astronaut and U.S. Navy Captain, Sunita Williams, were engaged as a panel for a discussion about "NASA's Journey to Mars: Science Fiction Meets Reality." Another panel moderated by the Executive Director of the Cleveland Water Alliance, Bryan Stubbs, involved a discussion with four GRC technologists on the subject of global water scarcity and water treatment concerns. The GRC panelists shared information on the development of snow-sensing, hyperspectral imaging, and non-equilibrium plasma technologies. Technology Day attendees received overviews of GRC's technologies and partnership objectives, and were introduced to areas for potential collaboration. They were also informed about opportunities to license technologies and how to do business with NASA.

  10. Ammonia in simulated Hanford double-shell tank wastes: Solubility and effects on surface tension

    International Nuclear Information System (INIS)

    Norton, J.D.; Pederson, L.R.

    1994-09-01

    Radioactive and wastes left from defense materials production activities are temporarily stored in large underground tanks at the Hanford Site in south central Washington State (Tank Waste Science Panel 1991). Some of these wastes are in the form of a thick slurry (''double-shell slurry'') containing sodium nitrate, sodium nitrite, sodium aluminate, sodium hydroxide, sodium carbonate, organic complexants and buffering agents, complexant fragments and other minor components (Herting et al. 1992a; Herting et al. 1992b; Campbell et al. 1994). As a result of thermal and radiolytic processes, a number of gases are known to be produced by some of these stored wastes, including ammonia, nitrous oxide, nitrogen, hydrogen, and methane (Babad et al. 1991; Ashby et al. 1992; Meisel et al. 1993; Ashby et al. 1993; Ashby et al. 1994; Bryan et al. 1993; US Department of Energy 1994). Before the emplacement of a mixer pump, these gases were retained in and periodically released from Tank 241-SY-101, a double-shell tank at the Hanford Site (Babad et al. 1992; US Department of Energy 1994). Gases are believed to be retained primarily in the form of bubbles attached to solid particles (Bryan, Pederson, and Scheele 1992), with very little actually dissolved in the liquid. Ammonia is an exception. The relation between the concentration of aqueous ammonia in such concentrated, caustic mixtures and the ammonia partial pressure is not well known, however

  11. Robert Lowell’s Culturally Coded Lexis

    Directory of Open Access Journals (Sweden)

    Lidija Davidovska

    2014-12-01

    Full Text Available In this paper, I will examine how a vital ele­ment of Robert Lowell’s descriptive and narrative struc­tures, i.e., the lexis, promise to unfold the “layers” of the culture that served as context for Life Studies. This in­volves exploring both the denotations and connotations of his culturally encoded lexis, that is, the external mean­ings of certain words and phrases before they “en­ter” the poem and the internal meanings they acquire after entering the poem. This process of “verbal osmo­sis”, when words absorb meaning from these different contexts, is, what I believe, critic and linguist Winifred Nowottny describes as “give and take between those patterns” (Fowler, 2009: 31. My analysis will focus on the sociolinguistic patina accrued on certain units of Lowell’s poetic lexis, such as names of historical people, events and concepts belonging to American and Euro­pean spiritual cultures and traditions, as well as brand names from popular material culture of the first half of the twentieth century. The analysis will also dwell on the use of idioms, catch phrases and other verbal clichés which reflect the culture that generated them. They func­tion as verbal “ready-mades” that additionally rein­force Lowell’s well-known anecdotal, colloquial and infor­mal poetic language. The choice of these particular lexical items is significant as they reflect the categoriza­tion of the world and the experience of the poetic voice or the “language user” in broader linguistic terms. At the same time, the categorization of the experience reflects the ideational position, the worldview of the language user. In the context of his poetics of immanence and experi­ence, this culturally coded poetic diction is ana­lyzed as another authentic and documented presenta­tion of immanent narrator’s “lived experience”.

  12. Patients’ perceptions of conservative treatment for a small abdominal aortic aneurysm

    Directory of Open Access Journals (Sweden)

    Tomee SM

    2018-01-01

    Full Text Available Stephanie M Tomee,1 Winifred A Gebhardt,2 Jean-Paul PM de Vries,3 Victoria C Hamelinck,1 Jaap F Hamming,1 Jan HN Lindeman1 1Department of Surgery, Leiden University Medical Center, Leiden, 2Health, Medical and Neuropsychology Unit, Institute of Psychology, Leiden University, Leiden, 3Department of Vascular Surgery, St Antonius Hospital, Nieuwegein, Leiden, the Netherlands Background: An abdominal aortic aneurysm (AAA is a progressive, generally symptomless disease that could ultimately result in a fatal rupture. Current guidelines advise conservative follow-up, and preventive surgical repair once the risk of rupture outweighs the cost of repair (55 mm in men. In developed countries, the majority of patients are diagnosed with AAAs less than 55 mm, and so enter a period of conservative surveillance. An important question is how patients perceive and cope with risk of rupture, AAA diagnosis and treatment, and presented AAA information. The goal of this study was to gain insight into patients’ perceptions of conservative treatment for a small AAA to increase patient satisfaction.Methods: We conducted semistructured in-depth interviews and used questionnaires measuring health-related quality of life (RAND 36-Item Health Survey 1.0, illness-perceptions (Illness Perception Questionnaire – Revised, and anxiety and depression (Hospital Anxiety and Depression Scale. Interviews were audio recorded and transcript contents were analyzed based on grounded theory. Mean scores of the questionnaires were compared to (population reference groups.Results: This study included ten male patients under surveillance for a small AAA from two hospitals in the Netherlands. Patients expressed no fear for AAA rupture, and also reported low levels of anxiety and depression in both the interviews and the Hospital Anxiety and Depression Scale. The presence of an AAA did not affect their social life or emotional well-being. The reported poorer physical health on RAND 36

  13. Primary cervical ganglioneuroblastoma: A case report.

    Science.gov (United States)

    Lu, Dan; Liu, Jun; Chen, Yuan; Chen, Fei; Yang, Hui

    2018-03-01

    Ganglioneuroblastoma is usually located in the adrenal gland, retroperitoneal ganglia, or posterior mediastinum, but rarely occurs in the parapharyngeal space. A 4-year-old girl presented with complaint of progressive inspiratory dyspnea and dysphagia, accompanying left-side Horner's syndrome. Computed tomography (CT) scan revealed a giant mass with irregular low density in left oropharyngeal and posterior pharyngeal wall. The left carotid artery sheath was pushed to the right. After enhancement, the central part of the mass was strengthened, and the surrounding bones structures appeard normal. Magnetic resonance imaging (MRI) showed a solid mass in the left parapharyngeal space displacing the left carotid sheath posteriorly and laterally. A ganglioneuroblastoma was diagnosed. The girl was treated by surgery. The postoperative course was uneventful. There was no recurrence was observed during the 1-year follow-up. The primary cervical ganglioneuroblastoma is rare, we recommended the ganglioneuroblastoma should be considered in the differential diagnosis of a child presenting with a parapharyngeal space mass.

  14. Capturing Motion and Depth Before Cinematography.

    Science.gov (United States)

    Wade, Nicholas J

    2016-01-01

    Visual representations of biological states have traditionally faced two problems: they lacked motion and depth. Attempts were made to supply these wants over many centuries, but the major advances were made in the early-nineteenth century. Motion was synthesized by sequences of slightly different images presented in rapid succession and depth was added by presenting slightly different images to each eye. Apparent motion and depth were combined some years later, but they tended to be applied separately. The major figures in this early period were Wheatstone, Plateau, Horner, Duboscq, Claudet, and Purkinje. Others later in the century, like Marey and Muybridge, were stimulated to extend the uses to which apparent motion and photography could be applied to examining body movements. These developments occurred before the birth of cinematography, and significant insights were derived from attempts to combine motion and depth.

  15. Rotational Properties of Jupiter Trojan 1173 Anchises

    Science.gov (United States)

    Chatelain, Joseph; Henry, Todd; French, Linda; Trilling, David

    2015-11-01

    Anchises (1173) is a large Trojan asteroid librating about Jupiter’s L5 Lagrange point. Here we examine its rotational and lightcurve properties by way of data collected over a 3.5 year observing campaign. The length of the campaign means that data were gathered for more than a quarter of Anchises' full orbital revolution which allows for accurate determinations of pole orientation and bulk shape properties for the asteroid that can then be compared to results of previous work (i.e. French 1987, Horner et al. 2012). In addition to light curves, photometric data taken during this campaign could potentially detect color differences between hemispheres as the viewing geometry changes over time. Understanding these details about a prominent member of the Jupiter Trojans may help us better understand the history of this fascinating and important group of asteroids.

  16. Initial temperature distribution in Los Humeros, Mexico, geothermal field; Distribucion de temperatura inicial en el campo geotermico de Los Humeros, Puebla

    Energy Technology Data Exchange (ETDEWEB)

    Garcia, A; Arellano, V; Aragon, A; Barragan, R.M; Izquierdo, G [Instituto de Investigaciones Electricas, Temixco, Morelos (Mexico); Pizano, A [Comision federal de Electricidad, Los Humeros, Puebla (Mexico)

    2000-12-01

    The initial formation temperatures surrounding 40 wells from the Los Humeros geothermal field are presented. These temperatures were estimated using the Horner and the sphere methods. A brief discussion on the applicability of each method is presented and previous applications are detailed. Then the more likely reservoir temperature of each well versus elevation is plotted based on the estimations about the main feed zone and the temperature of each well. The boiling with depth curve for pure water is also included. Two longitudinal and one traverse geological sections are presented to illustrate the field initial temperature distribution, the lithology and layers thickness, the basement topography and the wells traversed along each sections. Also, the main feed zones of the wells are indicated. Finally, the last series of measured temperature logs in well H-26 are produced by numerical simulation. This considers the well circulation losses and an assumed initial temperature profile. This profile iteratively modified until the computed profiles match the measured temperature profiles. The last assumed temperature profile is then considered as the best approximation to the undisturbed formation temperature around well H-26 and it is then compared with the stabilized temperatures obtained via the Horner and Sphere methods. [Spanish] Se presentan las temperaturas iniciales o estabilizadas de la formacion circundante a 40 pozos del campo geotermico Los Humeros, las cuales se estimaron mediante los metodos de Horner y el metodo de la esfera. Se presenta una discusion sobre la aplicacion de cada metodo y se detallan las aplicaciones previas del metodo de la esfera. Posteriormente y con base en las estimaciones de las principales zonas de aporte de cada pozo y sus correspondientes temperaturas se grafican las temperaturas mas probables de yacimiento para cada pozo contra la elevacion y se incluye en la misma grafica la curva de ebullicion del agua contra la elevacion. Se

  17. Presumptive meningoencephalitis secondary to extension of otitis media/interna caused by Streptococcus equi subspecies zooepidemicus in a cat.

    Science.gov (United States)

    Martin-Vaquero, Paula; da Costa, Ronaldo C; Daniels, Joshua B

    2011-08-01

    A 5-year-old castrated male domestic longhair cat was presented with neurological signs consistent with a central vestibular lesion and left Horner's syndrome. Computed tomography images revealed hyperattenuating, moderately contrast-enhancing material within the left tympanic bulla, most consistent with left otitis media/interna. Marked neutrophilic pleocytosis was identified on cerebrospinal fluid analysis. Streptococcus equi subspecies zooepidemicus (SEZ) was isolated from the cerebrospinal fluid. Intracranial extension of otitis media/interna is relatively infrequent in small animals. There are no reports of otitis media/interna caused by SEZ in dogs or cats. This is the first report of otitis media/interna and presumptive secondary meningoencephalitis caused by SEZ in a cat. Copyright © 2011 ISFM and AAFP. Published by Elsevier Ltd. All rights reserved.

  18. Subclavian Artery Occlusion and Pseudoaneurysm Caused by Lung Apex Mucormycosis: Successful Treatment with Transcatheter Embolization

    International Nuclear Information System (INIS)

    Economopoulos, Nikolaos; Kelekis, Dimitris; Papadopoulos, Antonios; Kontopoulou, Christina; Brountzos, Elias N.

    2007-01-01

    Subclavian artery pseudoaneurysm and occlusion in young patients are usually post-traumatic. We report the case of a 33-year-old diabetic woman with subclavian artery occlusion and pseudoaneurysm formation caused by pulmonary mucormycosis infection. The patient presented with diabetic ketoacidosis, Horner's syndrome, and absent left arm pulses. A cystic lesion of the left lung apex was found by imaging, was surgically resected, and was histologically diagnosed as mucormycosis infection. Magnetic resonance angiography depicted a left subclavian artery pseudoaneurysm and occlusion adjacent to the mucormycosis lesion. To protect against thromboembolic complications and rupture, the pseudoaneurysm was embolized with coils. The patient is clinically well 1 year after the intervention with no perfusion of the pseudoaneurysm

  19. Cavernous sinus syndrome: need for early diagnosis.

    Science.gov (United States)

    Toro, Jaime; Burbano, Lisseth Estefania; Reyes, Saúl; Barreras, Paula

    2015-03-27

    Cavernous sinus syndrome (CSS) is a rare condition characterised by ophthalmoplegia, proptosis, ocular and conjunctival congestion, trigeminal sensory loss and Horner's syndrome. These signs and symptoms result from the involvement of the cranial nerves passing through the cavernous sinus. We report the case of a 53-year-old man with a history of daily stabbing headache associated with dizziness, progressive blurred vision, right ocular pain, ptosis and ophthalmoplegia. After working up the patient, a meningioma was identified as the cause of the CSS. Despite advances in neuroimaging techniques, in some cases, the aetiology of CSS remains difficult to determine. We highlight the clinical and radiological features of a meningioma, one of the causes of CSS. Early diagnosis and treatment of CSS play a key role in a better prognosis. 2015 BMJ Publishing Group Ltd.

  20. CrossFit-related cervical internal carotid artery dissection.

    Science.gov (United States)

    Lu, Albert; Shen, Peter; Lee, Paul; Dahlin, Brian; Waldau, Ben; Nidecker, Anna E; Nundkumar, Anoop; Bobinski, Matthew

    2015-08-01

    CrossFit is a high-intensity strength and conditioning program that has gained popularity over the past decade. Potential injuries associated with CrossFit training have been suggested in past reports. We report three cases of cervical carotid dissection that are associated with CrossFit workouts. Patient 1 suffered a distal cervical internal carotid artery (ICA) dissection near the skull base and a small infarct in Wernicke's area. He was placed on anticoagulation and on follow-up has near complete recovery. Patient 2 suffered a proximal cervical ICA dissection that led to arterial occlusion and recurrent middle cerebral artery territory infarcts and significant neurological sequelae. Patient 3 had a skull base ICA dissection that led to a partial Horner's syndrome but no cerebral infarct. While direct causality cannot be proven, intense CrossFit workouts may have led to the ICA dissections in these patients.

  1. Naphazoline as a confounder in the diagnosis of carotid artery dissection.

    Science.gov (United States)

    Pemberton, John D; MacIntosh, Peter W; Zeglam, Ahmaida; Fay, Aaron

    2015-01-01

    Diagnosing Horner Syndrome can be difficult in the setting of an incomplete triad. A 27-year-old man presented with unilateral eyelid droop and intermittent ipsilateral headaches, having already seen 7 physicians. Physical examination revealed unilateral ptosis but no pupillary miosis or facial anhidrosis. Inspection of his clinical photographs revealed elevation of the ipsilateral lower eyelid, suggesting sympathetic dysfunction. On further questioning, he admitted to naphazoline dependence. Reexamination after ceasing the naphazoline unveiled the anisocoria. Vascular imaging subsequently revealed carotid dissection, and the patient was started on anticoagulant and antiplatelet therapy. The ptosis persisted after conjunctival Müllerectomy. External levator resection was recommended, but patient declined. This case underscores the importance of clinical photography, meticulous medical record review, and complete medication history including over-the-counter preparations. Clinicians should meticulously inspect the lower eyelid in cases of atypical blepharoptosis and consider the effects of eye drops when inspecting pupils for miosis.

  2. Growing Evidence about the Relationship between Vessel Dissection and Scuba Diving

    Directory of Open Access Journals (Sweden)

    Simona Brajkovic

    2013-09-01

    Full Text Available Carotid and vertebral artery dissection are relatively frequent and risky conditions. In the last decade, different patients with extracranial (and in 1 case also intracranial dissections associated with the practice of scuba diving were reported. The connection between the two conditions has not been fully explained so far. In the present article, we report the case of a patient presenting with Claude Bernard-Horner syndrome and homolateral XII cranial nerve palsy, manifesting a few days after diving in the cold water of a lake. The patient ended up having internal carotid artery dissection associated with the formation of a pseudoaneurysm. Here, we offer a summary of all cases reported in the literature about scuba diving and arterial dissection, and provide a critical discussion about which scuba diving-related factors can trigger the dissection of cervical vessels.

  3. Growing Evidence about the Relationship between Vessel Dissection and Scuba Diving.

    Science.gov (United States)

    Brajkovic, Simona; Riboldi, Giulietta; Govoni, Alessandra; Corti, Stefania; Bresolin, Nereo; Comi, Giacomo Pietro

    2013-01-01

    Carotid and vertebral artery dissection are relatively frequent and risky conditions. In the last decade, different patients with extracranial (and in 1 case also intracranial) dissections associated with the practice of scuba diving were reported. The connection between the two conditions has not been fully explained so far. In the present article, we report the case of a patient presenting with Claude Bernard-Horner syndrome and homolateral XII cranial nerve palsy, manifesting a few days after diving in the cold water of a lake. The patient ended up having internal carotid artery dissection associated with the formation of a pseudoaneurysm. Here, we offer a summary of all cases reported in the literature about scuba diving and arterial dissection, and provide a critical discussion about which scuba diving-related factors can trigger the dissection of cervical vessels.

  4. 10-Undecenoic Acid, an Inexpensive Source for the Synthesis of the Pheromones of Cotton Pests, Peach Tree Borer and Cherry Tree Borer

    Directory of Open Access Journals (Sweden)

    Subrata Chattopadhyay

    1997-06-01

    Full Text Available The aldehyde 7, derived from 10-undecenoic acid (5 on cis-selective Wittig reaction with pentylidenetriphenylphosphorane, subsequent deprotection and oxidation gave the pheromone (11Z-hexadecenal (1. Wittig-Horner olefination of 1 with the phosphonate 9 furnished the conjugated ester 10 which on base catalyzed isomerization to the (3Z-ester 11 followed by LAH reduction and acetylation gave (3Z,13Z-octadeadien-1-yl acetate (2. Compound 10 on the other hand was chemoselectively reduced and acetylated to furnish the pheromone (2E,13Z-octadeadien-1-yl acetate (4. For the synthesis of (3E,13Z-octadeadien-1-yl acetate (3, 1 was condensed with malonic acid under modified condition to afford the acid 13 which was converted to 3 by standard reaction protocol.

  5. Computer-assisted mechanistic evaluation of organic reactions

    Energy Technology Data Exchange (ETDEWEB)

    Gushurst, A.J.

    1988-01-01

    CAMEO, an interactive computer program which predicts the products of organic reactions given starting materials and conditions, has been refined and extended in the area of base-catalyzed and nucleophilic processes. The present capabilities of the program are outlined including brief discussion on the major segments in CAMEO: graphics, perception, and reaction evaluation. The implementation of general algorithms for predicting the acidities of a vast number of organic compounds to within 2 pK{sub a} units in dimethylsulfoxide and water are then described, followed by a presentation of the reactivity rules used by the program to evaluate nucleophilc reactions. Finally, a treatment of sulfur and phosphorus ylides, iminophosphoranes, and P=X-activated anions is given illuminating the various competitions available for these reagents, such as between proton transfer and addition, 1,2- and 1,4-addition, and the Peterson, Wittig, and Horner-Emmons olefination reactions.

  6. Synthesis of 1-[{sup 13}CD{sub 3}]-9-cis-retinoic acid

    Energy Technology Data Exchange (ETDEWEB)

    Bennani, Y.L. [Ligand Pharmaceuticals Inc., San Diego, CA (United States). Dept. of Medicinal Chemistry

    1995-12-31

    1-[{sup 13}CD{sub 3}]-9-cis-Retinoic acid was prepared in 8 steps from 2,6-dimethylcyclohexanone. Alkylation of 2,6-dimethylcyclohexanone under LiHMDS/MnBr{sub 2}/{sup 13}CD{sub 3}I gave the corresponding labeled 2-[{sup 13}CD{sub 3}]-2,2,6-trimethylcyclohexanone 4 in good yield. Further functionalization of 4 to 6-[{sup 13}CD{sub 3}]-{beta}-cyclocitral 6 proceeded through a Shapiro reaction. Aldehyde 6 was condensed with ethyl 3,3-dimethylacrylate to afford the corresponding bicyclic pyranone 7. Reduction of 7 to lactol 8, followed by acid-catalyzed ring opening gave the 9-cis-aldehyde 9. Wittig-Horner olefination and saponification afforded the title compound in good overall yield and in excellent isotopic purity. (Author).

  7. Case of neuro-Behcet syndrome with brainstem lesions confirmed by MRI. Relationship between X-ray CT and MRI findings and neurological symptoms

    Energy Technology Data Exchange (ETDEWEB)

    Takizawa, Shunya; Haida, Munetaka; Ohsuga, Hitoshi; Takagi, Shigeharu; Shinohara, Yukito

    1988-03-01

    A 49-year-old man presented with a 30-year history of oral and genital aphthous ulcers and joint pain. One day before his admission he developed double vision and weakness in the right extremities. Neurological examination revealed right 5th nerve palsy, left 6th to 18th nerve palsy, left Horner's sign, and motor and sensory impairment in the right upper and lower extremities. X-ray CT showed diffuse, weak, low-density areas in the brainstem. T1 weighted images showed low signals in the left side of the mid-pons, the left tegmentum and the right basis of the upper pons, and the left tegmentum of the midbrain. T2 weighted images showed high signals in the whole pons and the left side of the midbrain. MRI allowed the differentiation of reversible lesions, such as brain edema, and irreversible lesions, such as necrosis and demyelination of the tissue. (Namekawa, K.).

  8. Evidence-based practice: a quality indicator analysis of peer-tutoring in adapted physical education.

    Science.gov (United States)

    Kalef, Laura; Reid, Greg; Macdonald, Cathy

    2013-09-01

    The purpose of the research was to conduct a quality indicator analysis of studies investigating peer-tutoring for students with a disability in adapted physical education. An electronic search was conducted among English journals published from 1960 to November 2012. Databases included ERIC, PsycINFO, and SPORTDiscus. Fifteen research studies employing group-experimental (Gersten et al., 2005) or single-subject designs (Horner et al., 2005) met inclusion criteria. Each study was assessed for the presence and clarity of quality indicators. Group designs met an average of 62.5% essential and 69% desirable indicators. An average of 80% of indicators was present for single-subject designs. Results suggest claims of peer-tutoring being an evidence-based practice are premature. Recommendations for clarifying and applying the quality indicators are offered. Copyright © 2013 Elsevier Ltd. All rights reserved.

  9. Synthesis of the ABCDEFG ring system of maitotoxin.

    Science.gov (United States)

    Nicolaou, K C; Aversa, Robert J; Jin, Jian; Rivas, Fatima

    2010-05-19

    Maitotoxin (1) continues to fascinate scientists not only because of its size and potent neurotoxicity but also due to its molecular architecture. To provide further support for its structure and facilitate fragment-based biological studies, we developed an efficient chemical synthesis of the ABCDEFG segment 3 of maitotoxin. (13)C NMR chemical shift comparisons of synthetic 3 with the corresponding values for the same carbons of maitotoxin revealed a close match, providing compelling evidence for the correctness of the originally assigned structure to this polycyclic system of the natural product. The synthetic strategy for the synthesis of 3 relied heavily on our previously developed furan-based technology involving sequential Noyori asymmetric reduction and Achmatowicz rearrangement for the construction of the required tetrahydropyran building blocks, and employed a B-alkyl Suzuki coupling and a Horner-Wadsworth-Emmons olefination to accomplish their assembly and elaboration to the final target molecule.

  10. Teaching accuracy and reliability for student projects

    Science.gov (United States)

    Fisher, Nick

    2002-09-01

    Physics students at Rugby School follow the Salters Horners A-level course, which involves working on a two-week practical project of their own choosing. Pupils often misunderstand the concepts of accuracy and reliability, believing, for example, that repeating readings makes them more accurate and more reliable, whereas all it does is help to check repeatability. The course emphasizes the ideas of checking anomalous points, improving accuracy and making readings more sensitive. This article describes how we teach pupils in preparation for their projects. Based on many years of running such projects, much of this material is from a short booklet that we give out to pupils, when we train them in practical project skills.

  11. Cervical subluxation associated with posterior cervical hemivertebra.

    Science.gov (United States)

    Otero-López, R; Rivero-Garvía, M; Márquez-Rivas, J; Valencia, J

    2016-02-01

    Hemivertebrae, associated with a failure in the formation and fusion of vertebral body ossification nuclei, are a common cause of thoracic or lumbar scoliosis. A cervical location is rare and even rarer as a cause of cervical subluxation in flexion and extension (for which only one previous case has been found). We report on the case of a 7-year-old female patient, who was examined for a cervical fusion defect, consisting of a posterior C4 hemivertebra and a left hemiblock from C5 to C7. After performing surgery consisting of a C4 corpectomy and anterior fixation with intersomatic graft and plate, adequate cervical stabilization with only a self-limiting left C6 brachialgia and ipsilateral Horner syndrome occurs in the postoperative period. Posterior cervical hemivertebra associated with instability is a very rare finding. The anterior approach with corpectomy and anterior plate enables suitable stabilization.

  12. Italian Right Hemisphere Language Battery: the normative study.

    Science.gov (United States)

    Zanini, S; Bryan, K; De Luca, G; Bava, A

    2005-04-01

    Clinical neurolinguistics still lacks consolidated and standardised tools for the assessment of impairments of pragmatics of verbal communication. In the present paper we present norms of the Italian version of the Right Hemisphere Language Battery (Batteria del Linguaggio dell'Emisfero Destro, BaLED) originally devised by Bryan. The normative study has been conducted with the recruitment of 440 healthy subjects. The battery of tests was not intended to be cognitively oriented, by providing evidence of the cognitive impairments underpinning verbal pragmatic deficits; on the contrary, it permits the detection of the presence/absence of impairments in processing the main pragmatic features of verbal communication traditionally associated with right hemisphere lesions. Thus, apart from being a clinical tool for diagnosing pragmatic impairments of verbal communication, the BaLED represents a useful initial battery of tests for clinical assessment and for selecting specific populations of neurological patients suitable for investigation in further experimental studies.

  13. Development and characterization of 3D, nano-confined multicellular constructs for advanced biohybrid devices.

    Energy Technology Data Exchange (ETDEWEB)

    Kaehr, Bryan James

    2011-09-01

    This is the final report for the President Harry S. Truman Fellowship in National Security Science and Engineering (LDRD project 130813) awarded to Dr. Bryan Kaehr from 2008-2011. Biological chemistries, cells, and integrated systems (e.g., organisms, ecologies, etc.) offer important lessons for the design of synthetic strategies and materials. The desire to both understand and ultimately improve upon biological processes has been a driving force for considerable scientific efforts worldwide. However, to impart the useful properties of biological systems into modern devices and materials requires new ideas and technologies. The research herein addresses aspects of these issues through the development of (1) a rapid-prototyping methodology to build 3D bio-interfaces and catalytic architectures, (2) a quantitative method to measure cell/material mechanical interactions in situ and at the microscale, and (3) a breakthrough approach to generate functional biocomposites from bacteria and cultured cells.

  14. Boom and bust in popular science

    Directory of Open Access Journals (Sweden)

    Jon Turney

    2007-03-01

    Full Text Available The obvious thing to say about popular science publishing in the last twenty years is that there has been a lot of it! That is important in itself. But it also means it is hazardous to offer general comment. The British journalist and commentator Bryan Appleyard recently wrote in the Sunday Times that the “hard stuff” in science was no longer attracting so many readers. Books answering many small questions about the world, or evoking a sense of wonder, do better - he reckons - than those which offer large certainties based on a scientific, or scientistic view of the world. That type, Appleyard claims, dominated the field for years after Steven Hawking’s A Brief History of Time, with its promise of a theory of everything.

  15. Construction of hexahedral elements mesh capturing realistic geometries of Bayou Choctaw SPR site

    Energy Technology Data Exchange (ETDEWEB)

    Park, Byoung Yoon [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Roberts, Barry L. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-09-01

    The three-dimensional finite element mesh capturing realistic geometries of Bayou Choctaw site has been constructed using the sonar and seismic survey data obtained from the field. The mesh is consisting of hexahedral elements because the salt constitutive model is coded using hexahedral elements. Various ideas and techniques to construct finite element mesh capturing artificially and naturally formed geometries are provided. The techniques to reduce the number of elements as much as possible to save on computer run time with maintaining the computational accuracy is also introduced. The steps and methodologies could be applied to construct the meshes of Big Hill, Bryan Mound, and West Hackberry strategic petroleum reserve sites. The methodology could be applied to the complicated shape masses for not only various civil and geological structures but also biological applications such as artificial limbs.

  16. Developing C# Apps for iPhone and iPad using MonoTouch

    CERN Document Server

    Costanich, Bryan

    2011-01-01

    Developing C# Applications for iPhone and iPad using MonoTouch shows you how to use your existing C# skills to write apps for the iPhone and iPad. Fortunately, there's MonoTouch, Novell's .NET library that allows C# developers to write C# code that executes in iOS. Furthermore, MonoTouch allows you to address all the unique functions of the iPhone, iPod Touch, and iPad. And the big plus: You needn't learn any Objective-C to master MonoTouch!. Former Microsoft engineer and published app-store developer Bryan Costanich shows you how to use the tools you already know to create native apps in iOS

  17. An environmental model study of the deep layers of the North East Atlantic

    International Nuclear Information System (INIS)

    Bork, I.

    1989-01-01

    The field work of the north Atlantic monitoring Program (NOAMP) was supplemented by numerical simulations of the transport of radionuclides in the North Atlantic Ocean by annual mean flows and mixing processes. During the last year of NOAMP, a different attempt was made to compute the current field and three-dimensional trajectories of particles released in deep layers of the NOAMP area. It is the subject of this paper. The model used is of Bryan/Semtner type, but with smoothed topography and climatological (winter) temperature and salinity data. The results form a compromise between interpretation of climatological temperature and salinity data and the complete prediction of the current field by prognostic calculations, which yields a deep flow pattern that agrees with some ideas of the abyssal circulation

  18. 2007-2008 ACADEMIC TRAINING PROGRAMME

    CERN Multimedia

    2008-01-01

    LECTURE SERIES QCD Phenomenology at High Energy Prof. Bryan WEBBER, Cambridge University, UK18, 19, 20 & 21 February 2008 Main Auditorium, bldg. 500-1: 18, 19, 21 February 2008 - 11:00-12:00 Council Chamber, bldg 503-1-001: 20 February 2008 - 11:00-12:00 Council Chamber, bldg 503-1-001: 21 February 2008 - 14:00-15:00 Whatever kind of physics may be found at the LHC, strongly-interacting particles will be involved and therefore quantum chromodynamics will play a crucial role. For processes at high energy scales, perturbation theory remains the most powerful approach. These lectures will review the foundations and limitations of perturbative QCD and its application to high-energy processes, including jet production and fragmentation, deep inelastic scattering, and heavy quark and Higgs boson production.

  19. Medical Surveillance Monthly Report (MSMR). Volume 6, Number 2, February 2000

    Science.gov (United States)

    2000-02-01

    Salud Publica 1998 Jul;4(1):40-2. 2. Scoville SL, Bryan JP, Tribble...er 1 0, 00 0 pe rs on - y ea rs 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 Acute appendicitis (ICD-9-CM: 540-540.9) Women Non-acute...T H E A R M Y U .S . A rm y C enter for H ealth P rom otion and P reventive M edicine A berdeen P roving G round, M D 21010-5422 O F F

  20. Introduction in New perspectives on Rio Grande rift basins: from tectonics to groundwater

    Science.gov (United States)

    Hudson, Mark R.; Grauch, V.J.S.

    2013-01-01

    Basins of the Rio Grande rift have long been studied both for their record of rift development and for their potential as host of natural resources. Early workers described the basin geomorphology and the character of infilling sediments (e.g. Siebenthal, 1910; Bryan, 1938; Speigel and Baldwin, 1963), and subsequent research compilations provided general stratigraphic and tectonic overviews of rift basins and described their geophysical characteristics within the crust (Hawley, 1978; Riecker, 1979; Baldridge et al., 1984; Keller, 1986). Subsurface knowledge gained from hydrocarbon exploration activities coupled with detailed surface studies of basins and their flanking uplifts were presented in Geological Society of America (GSA) Special Paper 291, edited by Keller and Cather (1994a).

  1. Cultural resources survey and assessment of the proposed Department of Energy Freeport to Texas City pipeline, Brazoria and Galveston Counties, Texas. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Castille, G.J.; Whelan, J.P. Jr.

    1986-01-01

    An intensive survey and testing program of selected segments of a proposed Department of Energy pipeline were conducted by Coastal Environments, Inc., Baton Rouge, Louisiana, during December 1985 and January 1986. The proposed pipeline runs from Texas City, Galveston County to Bryan Mound, Brazoria County. The pedestrian survey was preceded by historical records survey to locate possible historic sites within the DOE righ-of-way. Four prehistoric sites within the ROW (41BO159, 160, 161, 162) and one outside the ROW (41BO163) were located. All are Rangia cuneata middens. The survey results are discussed with particular reference to the environmental settings of the sites and the effectiveness of the survey procedure. Two of the sites located within the ROW were subjected to additional testing. The results of the backhoe testing program are included in the site descriptions, and the scientific value of the sites are presented. 52 refs., 20 figs., 10 tabs.

  2. The Users Office turns 20

    CERN Multimedia

    2009-01-01

    20 years ago, in the summer of 1989, an office was created to assist the thousands of users who come to CERN each year, working over the broad range of projects and collaborations. Chris Onions (right), head of the Users’ Office, with Bryan Pattison (left), the Office’s founder.Before the inception of the Users Office, it was common for users to spend at least an entire day moving from office to office in search of necessary documentation and information in order to make their stay official. "Though the Office has undergone various changes throughout its lifetime, it has persisted in being a welcoming bridge to facilitate the installation of visitors coming from all over the world", says Chris Onions, head of the Users Office. This September, the Office will celebrate its 20-year anniversary with a drink offered to representatives of the User community, the CERN management and staff members from the services with whom the Office is involved. &...

  3. 2007 2008 ACADEMIC TRAINING PROGRAMME

    CERN Multimedia

    2008-01-01

    LECTURE SERIES 18, 19, 20 & 21 February 2008 Main Auditorium, bldg. 500-1: 18, 19, 21 February 2008 - 11:00-12:00 Council Chamber, bldg 503-1-001: 20 February 2008 - 11:00-12:00 Council Chamber, bldg 503-1-001: 21 February 2008 - 14:00-15:00 QCD Phenomenology at High Energy Prof. Bryan WEBBER, Cambridge University, UK Whatever kind of physics may be found at the LHC, strongly-interacting particles will be involved and therefore quantum chromodynamics will play a crucial role. For processes at high energy scales, perturbation theory remains the most powerful approach. These lectures will review the foundations and limitations of perturbative QCD and its application to high-energy processes, including jet production and fragmentation, deep inelastic scattering, and heavy quark and Higgs boson production.

  4. Totally parallel multilevel algorithms

    Science.gov (United States)

    Frederickson, Paul O.

    1988-01-01

    Four totally parallel algorithms for the solution of a sparse linear system have common characteristics which become quite apparent when they are implemented on a highly parallel hypercube such as the CM2. These four algorithms are Parallel Superconvergent Multigrid (PSMG) of Frederickson and McBryan, Robust Multigrid (RMG) of Hackbusch, the FFT based Spectral Algorithm, and Parallel Cyclic Reduction. In fact, all four can be formulated as particular cases of the same totally parallel multilevel algorithm, which are referred to as TPMA. In certain cases the spectral radius of TPMA is zero, and it is recognized to be a direct algorithm. In many other cases the spectral radius, although not zero, is small enough that a single iteration per timestep keeps the local error within the required tolerance.

  5. L'animale narrante. Brian Boyd e l'origine delle storie

    Directory of Open Access Journals (Sweden)

    Salvatore Cifuni

    2016-12-01

    Full Text Available THE STORYTELLING ANIMAL. BRIAN BOYD AND THE ORIGIN OF STORIES   This paper will discuss about Literary Darwinism, a new branch of literary criticism that tries to explain storytelling in evolutionary terms. In particular, It will deal with the thesis proposed by Bryan Boyd, the most cited author of LD, according to which narrative is the most powerful tool to share and shape attention – especially in the form of fiction, which allows human beings to go beyond the here and now. Therefore, after having described his proposal and, briefly, its weaknesses, I will focus on the most interesting part of It: the one about ontogeny. So, using Boyd as a starting point, I will study the importance of narrative for the development of our most relevant cognitive skills.

  6. Summer High School Apprenticeship Research Program (SHARP) of the National Aeronautics and Space Administration

    Science.gov (United States)

    1984-01-01

    A total of 125 talented high school students had the opportunity to gain first hand experience about science and engineering careers by working directly with a NASA scientist or engineer during the summer. This marked the fifth year of operation for NASA's Summer High School Apprenticehsip Research Program (SHARP). Ferguson Bryan served as the SHARP contractor and worked closely with NASA staff at Headquarters and the eight participating sites to plan, implement, and evaluate the Program. The main objectives were to strengthen SHARP and expand the number of students in the Program. These eight sites participated in the Program: Ames Research Center North, Ames' Dryden Flight Research Facility, Goddard Space Flight Center, Goddard's Wallops Flight Facility, Kennedy Space Center, Langley Research Center, Lewis Research Center, and Marshall Space Flight Center.

  7. Plasma Science and Innovation Center (PSI-Center) at Washington, Wisconsin, and Utah State, ARRA Supplement

    Energy Technology Data Exchange (ETDEWEB)

    Sovinec, Carl

    2018-03-14

    The objective of the Plasma Science and Innovation Center (PSI-Center) is to develop and deploy computational models that simulate conditions in smaller, concept-exploration plasma experiments. The PSIC group at the University of Wisconsin-Madison, led by Prof. Carl Sovinec, uses and enhances the Non-Ideal Magnetohydrodynamics with Rotation, Open Discussion (NIMROD) code, https://nimrodteam.org, to simulate macroscopic plasma dynamics in a number of magnetic confinement configurations. These numerical simulations provide information on how magnetic fields and plasma flows evolve over all three spatial dimensions, which supplements the limited access of diagnostics in plasma experiments. The information gained from simulation helps explain how plasma evolves. It is also used to engineer more effective plasma confinement systems, reducing the need for building many experiments to cover the physical parameter space. The ultimate benefit is a more cost-effective approach to the development of fusion energy for peaceful power production. The supplemental funds provided by the American Recovery and Reinvestment Act of 2009 were used to purchase computer components that were assembled into a 48-core system with 256 Gb of shared memory. The system was engineered and constructed by the group's system administrator at the time, Anthony Hammond. It was successfully used by then graduate student, Dr. John O'Bryan, for computing magnetic relaxation dynamics that occur during experimental tests of non-inductive startup in the Pegasus Toroidal Experiment (pegasus.ep.wisc.edu). Dr. O'Bryan's simulations provided the first detailed explanation of how the driven helical filament of electrical current evolves into a toroidal tokamak-like plasma configuration.

  8. Clinical report of cervical arthroplasty in management of spondylotic myelopathy in Chinese

    Directory of Open Access Journals (Sweden)

    Lu Ning

    2006-11-01

    Full Text Available Abstract Objectives To investigate clinical effects and manual operational point of Bryan cervical disc prosthesis in Chinese, to observe the stability and range of movement (ROM post-operatively. Methods and materials From 2003,12 to 2005,12, Bryan disc prosthesis replacement applied in 83 cases (102 levels of cervical spondylotic myelopathy (CSM after anterior decompression in our hospital. Clinical (JOA grade and Odom's scale and radiological (X-ray of flexion, extension; left and right bending position follow-up was performed. Systemic radiographic study about stability and ROM of replaced level post operationally were measured. CT or MRI scans were applied in all cases to evaluate the signs of the prosthesis deflexion and hetero-ossification in the replaced levels. Results At least 12 months follow-up were done in 65/83 of these paients. All of 83 patients were improved according to Odsm's scale. JOA score increased from average 8.7 to 15.5. There was no prosthesis subsidence. Replaced segment achieved stability and restored partial of normal ROM 4.73°(3.7°–5.9° early postoperation and 8.12°(5.8°–13.6° more than 12 months postoperation in flex and extension position. No obvious loss of lordosis was found. CT or MRI follow-up shows position deflexion of the prosthesis metal endplates ( Conclusion Byran cervical disc prosthesis restored motion to the level of the intact segment in flexion-extension and lateral bending in post-operative images. At the same time, it can achieve good anterior decompression treatment effect and immediate stability in replaced 1 or 2 levels, and which is a new choice for the treatment of CSM.

  9. Very late complications of cervical arthroplasty: results of 2 controlled randomized prospective studies from a single investigator site.

    Science.gov (United States)

    Hacker, Francis M; Babcock, Rebecca M; Hacker, Robert J

    2013-12-15

    Prospective, single-site, randomized, Food and Drug Administration-approved investigational device exemption clinical trials of 2 cervical arthroplasty (CA) devices. To evaluate complications with CA occurring more than 4 years after the surgical procedure in Food and Drug Administration clinical trials of the Bryan and Prestige LP arthroplasty devices. Reports of several randomized clinical studies have shown CA to be a safe and effective alternative to anterior cervical fusion in the treatment of degenerative cervical disc disorders. A majority include follow-up intervals of 4 years or less. Between 2002 and 2006, 94 patients were enrolled in Food and Drug Administration studies of the Bryan and Prestige LP cervical disc devices. Charts, imaging studies, and hospital records were reviewed for those who underwent arthroplasty and returned more than 4 years after their surgical procedure with neck-related pain or dysfunction. Excluding adjacent segment disease that occurred with a similar rate for patients who underwent fusion and arthroplasty, 5 patients, all treated with arthroplasty, returned for evaluation of neck and arm symptoms between 48 and 72 months after surgery. Four patients had peridevice vertebral body bone loss. One patient had posterior device migration and presented with myelopathy. Three required revision surgery and 2 were observed. Four patients maintained follow-up and reported stabilization or improvement in symptoms. Despite their similarities, CA and fusion are not equivalent procedures in this study in regard to very late complications. Similar to large joint arthroplasty, delayed device-related complications may occur with CA. These complications commenced well beyond the time frame for complications associated with more traditional cervical spine procedures. Both patients and surgeons should be aware of the potential for very late device-related complications occurring with CA and the need for revision surgery. 1.

  10. Radwaste storage in crystalline rocks: a natural analog

    International Nuclear Information System (INIS)

    Brookins, D.G.; Abashian, M.S.; Cohen, L.H.; Wollenberg, H.A.

    1982-01-01

    The Eldora-Bryan Stock (Colorado) intruded the 1.4-1.6 billion year old metamorphic rocks of the Idaho Springs Formation 55 million years ago. The stock may be considered a giant analog of a radwaste form without canister or engineered backfill barriers. The authors' lanthanide studies show the following: (1) The intrusive rocks remained as a closed system. (2) Lanthanide/chondrite versus ionic radius plots show only local redistribution in the immediate contact zone, and that rocks in this zone have not gained lanthanides from the magma. (3) No whole rock perturbations for the lanthanides are noted at distances greater than 3 m from the contact. Stable oxygen isotopic variations show a narrow 9.0 +- 0.3 per mille range for the intrusive rocks and whole rock values from 7.6 to 10.0 per mille for the intruded rocks. The authors conclude: (1) The Idaho Springs Formation was not penetrated by hydrothermal fluids from the Eldora-Bryan magma except possibly on a local scale within 3 m of the contact. (2) The light lanthanides may be locally redistributed in the immediate contact zone, but without additions from the magma. (3) The oxygen isotopic data imply lack of hydrothermal fluids from the magma penetrating the intruded rocks, even in the highest temperature contact zones. Whole rock data imply closed system conditions for Rb, Sr, Th, U, Pb even where mineral ages have been lowered. Data for Co, Cr, Sc, Fe, Cs also indicate retention in whole rock systems and no exchange with the magma. The combined chemical, isotopic, petrographic and theoretical data and calculations indicate suitability of rocks of the Idaho Springs Formation, and thus of many types of crystalline rocks as well, for possible use for the storage of radioactive waste

  11. Jane Eyre between the Wars Jane Eyre entre les deux guerres

    Directory of Open Access Journals (Sweden)

    Patsy Stoneman

    2009-07-01

    Full Text Available L’un des héritages que Charlotte Brontë laissa derrière elle avec son roman Jane Eyre, c’est une trame qui fut indéfiniment recyclée dans le roman féminin. Une femme jeune, isolée et désargentée rencontre un homme plus riche et plus âgé qu’elle, au tempérament morose et au passé mystérieux dans lequel se trouve une épouse démente et mauvaise. Dans le monde de Charlotte Brontë, la société offre peu d’alternatives au mariage pour une femme qui ne peut compter que sur elle-même pour subvenir à ses besoins, et même le dénouement tranché de Jane Eyre n’est qu’une version plus égalitaire du mariage traditionnel. Sa structure triangulaire, toutefois, s’est avérée fertile pour les écrivains qui examinèrent les relations hommes/femmes dans des époques sociales ultérieures. Dans l’Angleterre d’entre-deux-guerres, les femmes de la classe moyenne étaient, comme le formule Virginia Woolf, « on the bridge » entre la maison privée et le monde professionnel. La plupart des obstacles légaux qui leur barraient l’accès à l’instruction et à l’emploi disparaissaient, mais l’éthos de la domesticité imprimait encore sa marque sur les attentes émotionnelles des femmes. Dans cet article, j’examine quatre romans qui utilisent l’intrigue de Jane Eyre afin de tracer les contours des possibilités qui s’offraient aux femmes à cette époque. Il s’agit de Vera d’Elizabeth von Arnim (1921, The Weather in the Streets de Rosamond Lehmann (1936, South Riding de Winifred Holtby (1936 et Rebecca de Daphne du Maurier (1938. La distinction que Tania Modleski dresse entre la romance (‘romance’ – dans laquelle la peur ou le dégoût initial de l’héroïne pour le héros se transforme en amour – et le gothique (‘gothic’ – où le processus est inverse – souligne que ces romans modernes ne peuvent envisager autre chose qu’un dénouement gothique à une situation à l’origine romantique

  12. Modificação da técnica de abordagem ventral à articulação atlantoxial sem a secção do músculo esternotireóideo Modification of ventral technique approach to the articulation atlantoxial with no section of the muscle sternothyreoid

    Directory of Open Access Journals (Sweden)

    Rafael Festugatto

    2009-07-01

    Full Text Available O objetivo deste trabalho foi apresentar uma variação na técnica de acesso ventral à articulação atlantoaxial para tratamento da instabilidade atlantoaxial sem a secção do músculo esternotireóideo. Foram utilizados 15 cães, pesando entre oito e 12kg, sem raça definida, independente do sexo, distribuídos aleatoriamente em três grupos iguais de acordo com o período pós-operatório (PO denominados de I (30dias, II (60 dias e III (90 dias para avaliações clínicas diárias. A articulação atlantoaxial foi submetida à artrodese por meio do acesso ventral utilizando pinos de Steinmann associados à resina acrílica autopolimerizável. O acesso e a exposição da articulação atlantoaxial sem a secção do músculo esternotireóideo foram realizados sem complicações ou limitações adicionais. Nenhum cão desta pesquisa apresentou tosse, dispnéia, regurgitação, paralisia laríngea ou Síndrome de Horner. Pode-se concluir que a secção do músculo esternotireóideo é um procedimento desnecessário e que não interfere na exposição da articulação atlantoaxial e na realização da artrodese em cães por meio do acesso ventral.The aim of this research was to present a variation of the ventral technique access to the atlantoaxial joint, for treatment of atlantoaxial instability with no section of sternothyreoid muscle. Fifteen dogs, with weight between 8 and 12kg, were randomly distributed in three groups denominated one (30 days, two (60 days and three (90 days for daily clinical evaluations. The atlantoaxial joint was submitted to the arthrodesis through the ventral access using pins of Steinmann associated to acrylic resin. The access and exhibition of the atlantoaxial joint with no section of the sternothyreoid muscle was obtained without complications or additional limitations. No dog of this research presented coughing, dyspnea, regurgitation, laryngeal paralysis or Horner's syndrome. It can be concluded that the

  13. Bringing physics to life

    Science.gov (United States)

    2000-01-01

    `I'm doing a physics that is pulling me towards it.' `I like the course being more up to date.' `You learn the physics but you also think ``well I actually see a point in knowing this physics''.' `This course presents physics in a more interesting way as it focuses on practical activity and applications of physics.' `The industrial visit gives students the opportunity to look for science in action.' These are just some of the comments from students and teachers piloting the new Salters Horners Advanced Physics course (SHAP). Contexts and applications drive the course, providing interest and motivation for students and alerting them to some of the many career areas that involve physics. For example, the operation of a CD player leads to a study of waves and superposition; archaeological surveying and analysis brings in d.c. circuitry and x-ray diffraction; consideration of safety in rail transport involves learning about mechanics and electromagnetism. The course is produced by a team directed from the University of York and funded by a consortium of industrial and charitable sponsors. It is examined by Edexcel and support materials are published by Heinemann. The pilot, involving some 50 centres, began in September 1998 with the new subject core and the AS qualification intermediate between GCSE and the full A-level standard. The course has been fully approved by QCA, and from September 2000 it will be open to all. For comprehensive information about SHAP, visit the project's website: www.york.ac.uk/org/seg/salters/physics . Pilot materials for students, teachers and technicians are available from Heinemann. They will be re-edited and published in full colour for September 2000. Members of the team will attend the annual ASE meeting in Leeds this month; there will be a talk and a hands-on workshop where student activities can be sampled. Materials will be on view at the University of York stand. In addition, Edexcel and the York team are running a series of

  14. Initial thermal state of the Los Humeros, Puebla, Mexico, geothermal field; Estado termico inicial del campo geotermico de Los Humeros, Puebla, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Garcia Gutierrez, Alfonso [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)]. E-mail: aggarcia@iie.org.mx

    2009-01-15

    The initial temperatures field is presented for 40 wells in the Los Humeros geothermal reservoir, along with an elevation curve based on the formation temperature or the most probable reservoir temperature. Stabilized temperatures were estimated using the Radial Spherical Heat Flow method, chosen over the Horner method based on the numerical simulation of the circulation and stop processes of well H-26. In this well, the last temperature log series was reproduced, considering circulation losses. The temperatures were used to produce isothermal curves over three geological sections of the field, which represent the initial distribution of temperatures in the reservoir and show the thermal characteristics and the relationships among thermal anomalies and faults in the reservoir. The elevation curve plotted against the initial temperature of the formation was generated based on detection of the main feed zones at each well, which in turn was developed using detailed analyses of diverse information, such as temperature logs, circulation losses, lithology, well completion, and heat velocities. Based on the results, two groups of wells may be distinguished: one between 1000 and 1600 masl with temperatures from 290 to 330 degrees Celsius, and one between 900 and 0 masl with temperatures from 300 to 400 degrees Celsius. [Spanish] En este trabajo se presenta el campo de temperatura inicial del yacimiento geotermico de Los Humeros y una curva de elevacion contra la temperatura de formacion o temperatura mas probable del yacimiento, obtenida para 40 pozos del campo. Las temperaturas estabilizadas se estimaron mediante el metodo de Flujo de Calor Esferico Radial, y su eleccion sobre las temperaturas del metodo de Horner se soporta con simulacion numerica de los procesos de circulacion y paro del pozo H-26, en la cual la ultima serie de registros se reprodujo considerando perdidas de circulacion. Con estas temperaturas se generaron curvas isotermicas para tres secciones

  15. INTRODUCTION: Award of the 2004 Hannes Alfvén Prize of the European Physical Society to J W Connor, R J Hastie and J B Taylor

    Science.gov (United States)

    Lister, Jo, Dr

    2004-12-01

    Jack Connor, Jim Hastie and Bryan Taylor The Hannes Alfvén Prize of the European Physical Society for Outstanding Contributions to Plasma Physics (2004) has been awarded to Jack Connor, Jim Hastie and Bryan Taylor `for their seminal contributions to a wide range of issues of fundamental importance to the success of magnetic confinement fusion, including: the development of gyro-kinetic theory; the prediction of the bootstrap current; dimensionless scaling laws; pressure-limiting instabilities, and micro-stability and transport theory'. Jack Connor, Jim Hastie and Bryan Taylor form one of the most successful teams of theoretical physicists in the history of magnetic confinement fusion. They have made important contributions individually, but their greatest discoveries have mostly been accomplished jointly, either in pairs or as a team involving all three. Their early work, in the 1960s, included the development of the gyro-kinetic theory for fine-scale plasma instabilities, which today forms the basis of the most advanced turbulence simulation codes in tokamak and stellarator research. The theoretical prediction of the bootstrap current, made in 1970-71 was not confirmed experimentally for over a decade but is now regarded as crucial to the success of the tokamak as a steady-state fusion power source. Their work on collisional transport also included the prediction of impurity ion accumulation, which is observed in internal transport barriers and is a key concern for long-pulse tokamak operation. The relativistic threshold for runaway electrons, identified in 1975, forms the basis of the most recent tokamak disruption mitigation schemes. In the late 1970s, the team developed the theory for ballooning instabilities, which provided an important ingredient in the `Troyon-Sykes' β-limit—an expression that is still used as a guide to the performance of tokamaks and in the design of ITER. Ballooning mode theory has also contributed to the understanding of

  16. Carbon dioxide enhanced oil recovery performance according to the literature

    Science.gov (United States)

    Olea, Ricardo A.

    2017-07-17

    IntroductionThe need to increase the efficiency of oil recovery and environmental concerns are bringing to prominence the use of carbon dioxide (CO2) as a tertiary recovery agent. Assessment of the impact of flooding with CO2 all eligible reservoirs in the United States not yet undergoing enhanced oil recovery (EOR) requires making the best possible use of the experience gained in 40 years of applications. Review of the publicly available literature has located relevant CO2-EOR information for 53 units (fields, reservoirs, pilot areas) in the United States and 17 abroad.As the world simultaneously faces an increasing concentration of CO2 in the atmosphere and a higher demand for fossil fuels, the CO2-EOR process continues to gain popularity for its efficiency as a tertiary recovery agent and for the potential for having some CO2 trapped in the subsurface as an unintended consequence of the enhanced production (Advanced Resources International and Melzer Consulting, 2009). More extensive application of CO2-EOR worldwide, however, is not making it significantly easier to predict the exact outcome of the CO2 flooding in new reservoirs. The standard approach to examine and manage risks is to analyze the intended target by conducting laboratory work, running simulation models, and, finally, gaining field experience with a pilot test. This approach, though, is not always possible. For example, assessment of the potential of CO2-EOR at the national level in a vast country such as the United States requires making forecasts based on information already available.Although many studies are proprietary, the published literature has provided reviews of CO2-EOR projects. Yet, there is always interest in updating reports and analyzing the information under new perspectives. Brock and Bryan (1989) described results obtained during the earlier days of CO2-EOR from 1972 to 1987. Most of the recovery predictions, however, were based on intended injections of 30 percent the size of

  17. Hydraulic Conductivity Measurements with HTU at Eurajoki, Olkiluoto, Borehole OL-KR15 and OL-KR15B, Year 2004

    International Nuclear Information System (INIS)

    Haemaelaeinen, H.

    2005-01-01

    As a part of the site investigations for the disposal of spent nuclear fuel, hydraulic conductivity measurements were carried out in borehole OL-KR15 at Eurajoki, Olkiluoto. The objective was to investigate the distribution of the hydraulic conductivity in the surrounding bedrock volume. Measurements were carried out during 2003-2004 in two phases. The total length of the borehole OL-KR15 is 518,85 m and 158 45,14 m. Of the 471 ,5 m + 44,5 m total measurable length 414 m was covered with 237 standard tests with 2 m packer separation as specified in the research plan, partly with 1 m overlaps. 259 tests were initiated, but some of them ended to hardware or software errors or unsuitable parameter values. Double-packer constant-head method was used throughout with nominal 200 kPa overpressure. Injection stage lasted normally 20 minutes and fall-off stage 10 minutes. The tests were often shortened if there were clear indications that the hydraulic conductivity is below the measuring range of the system. The pressure in the test section was let to stabilise at least 5 min before injection. In some test sections the stabilisation or injection stage lasted several hours. Two transient (Horner and 1/Q) interpretations and one stationary-state (Moye) interpretation were made in-situ immediately after the test. The Hydraulic Testing Unit (HTU-system) is owned by Posiva Oy and it was operated by Geopros Oy. (orig.)

  18. The Double Hierarchy Method. A parallel 3D contact method for the interaction of spherical particles with rigid FE boundaries using the DEM

    Science.gov (United States)

    Santasusana, Miquel; Irazábal, Joaquín; Oñate, Eugenio; Carbonell, Josep Maria

    2016-07-01

    In this work, we present a new methodology for the treatment of the contact interaction between rigid boundaries and spherical discrete elements (DE). Rigid body parts are present in most of large-scale simulations. The surfaces of the rigid parts are commonly meshed with a finite element-like (FE) discretization. The contact detection and calculation between those DE and the discretized boundaries is not straightforward and has been addressed by different approaches. The algorithm presented in this paper considers the contact of the DEs with the geometric primitives of a FE mesh, i.e. facet, edge or vertex. To do so, the original hierarchical method presented by Horner et al. (J Eng Mech 127(10):1027-1032, 2001) is extended with a new insight leading to a robust, fast and accurate 3D contact algorithm which is fully parallelizable. The implementation of the method has been developed in order to deal ideally with triangles and quadrilaterals. If the boundaries are discretized with another type of geometries, the method can be easily extended to higher order planar convex polyhedra. A detailed description of the procedure followed to treat a wide range of cases is presented. The description of the developed algorithm and its validation is verified with several practical examples. The parallelization capabilities and the obtained performance are presented with the study of an industrial application example.

  19. A novel homozygous AP4B1 mutation in two brothers with AP-4 deficiency syndrome and ocular anomalies.

    Science.gov (United States)

    Accogli, Andrea; Hamdan, Fadi F; Poulin, Chantal; Nassif, Christina; Rouleau, Guy A; Michaud, Jacques L; Srour, Myriam

    2018-04-01

    Adaptor protein complex-4 (AP-4) is a heterotetrameric protein complex which plays a key role in vesicle trafficking in neurons. Mutations in genes affecting different subunits of AP-4, including AP4B1, AP4E1, AP4S1, and AP4M1, have been recently associated with an autosomal recessive phenotype, consisting of spastic tetraplegia, and intellectual disability (ID). The overlapping clinical picture among individuals carrying mutations in any of these genes has prompted the terms "AP-4 deficiency syndrome" for this clinically recognizable phenotype. Using whole-exome sequencing, we identified a novel homozygous mutation (c.991C>T, p.Q331*, NM_006594.4) in AP4B1 in two siblings from a consanguineous Pakistani couple, who presented with severe ID, progressive spastic tetraplegia, epilepsy, and microcephaly. Sanger sequencing confirmed the mutation was homozygous in the siblings and heterozygous in the parents. Similar to previously reported individuals with AP4B1 mutations, brain MRI revealed ventriculomegaly and white matter loss. Interestingly, in addition to the typical facial gestalt reported in other AP-4 deficiency cases, the older brother presented with congenital left Horner syndrome, bilateral optic nerve atrophy and cataract, which have not been previously reported in this condition. In summary, we report a novel AP4B1 homozygous mutation in two siblings and review the phenotype of AP-4 deficiency, speculating on a possible role of AP-4 complex in eye development. © 2018 Wiley Periodicals, Inc.

  20. Transoral Robotic Surgery in Retrostyloid Parapharyngeal Space Schwannomas

    Science.gov (United States)

    Ansarin, Mohssen; Tagliabue, Marta; Chu, Francesco; Zorzi, Stefano; Proh, Michele; Preda, Lorenzo

    2014-01-01

    Parapharyngeal space (PPS) tumors are very rare, representing about 0.5% of head and neck neoplasms. An external surgical approach is mainly used. Several recent papers show how transoral robotic surgery (TORS) excision could be a prospective tool to remove mainly benign lesions in PPS; no cases of neurogenic tumors from the retrostyloid space treated with TORS have been reported. We present two cases which underwent TORS for schwannomas from the retrostyloid compartment of the parapharyngeal space. Clinical diagnosis of schwannoma was performed by magnetic resonance imaging (MRI). In the first case a 6 cm neurogenic tumor arose from the vagus nerve and in the second case a 5 cm mass from the sympathetic chain was observed. Both cases were treated successfully by the TORS approach using a new “J”-shaped incision through the mucosa and superior pharyngeal constrictor muscle. Left vocal cord palsy and the Claude Bernard Horner syndrome, respectively, were observed as expected postsurgical sequelae. In case 1 the first bite syndrome developed after three months, while no complications were observed in case 2. Both patients regained a normal swallowing function. TORS seems to be a feasible mini-invasive procedure for benign PPS masses including masses in the poststyloid space. PMID:25202464

  1. Cranial thoracic disc protrusions in three German Shepherd dogs.

    Science.gov (United States)

    Gaitero, Lluís; Añor, Sònia

    2009-11-01

    Although intervertebral disc degeneration can occur at any level of the spine, cervical and thoraco-lumbar discs are more commonly affected. The presence of the inter-capital ligament between the rib heads results in an extremely low incidence of cranial thoracic intervertebral disc herniation. In this case series, the clinical, radiological, and surgical findings, as well as the post-operative outcome, in three German Shepherd dogs with T2-T3 disc protrusions is reported. These dogs had chronic progressive paraparesis and lumbar myelography and post-myelographic computerised tomography revealed ventrolateral, extra-dural spinal cord compressions over the T2-T3 intervertebral disc. All animals exhibited transient deterioration in their clinical signs and one developed unilateral Horner's syndrome following T2-T3 hemi-dorsal laminectomy. Subsequently two of the dogs improved progressively and neurological dysfunction had completely resolved by 2 months. To the authors' knowledge, this is the first case series describing T2-T3 disc protrusions in the dog.

  2. Esophageal stricture caused by rib osteoma in a cat: case report.

    Science.gov (United States)

    Cunha, Simone Cs; Corgozinho, Katia B; Martins, Mauro C; Ferreira, Ana Mr

    2015-01-01

    A 6-year-old male domestic shorthair cat presented with frequent food regurgitation and dysphagia. Plain thoracic radiographs revealed a calcified mass overlying the topography of the mediastinum, as well as dilation of the cervical portion of the esophagus due to an accumulation of food. Endoscopic examination showed a severe extraluminal esophageal stricture at the mediastinum entrance. Surgery and a gastric tube were declined by the cat's owner, with palliative support preferred. However, 1 year later, the cat presented with severe cachexia, dysphagia, salivation, dehydration and inspiratory dyspnea. Thoracic computed tomography was performed to evaluate the possibility of surgical resection. A mass of bone density originating in the second left rib was observed. The mass did not appear to have invaded adjacent structures but marked compression of the mediastinal structures was observed. Surgical resection was performed and a prosthetic mesh was used to reconstruct the thoracic wall. Transient Horner's syndrome developed in the left eye postoperatively, and was resolved within 4 weeks. Histopathology revealed a benign osteoma. Thirty-two months after surgery, the cat was well and free of disease. Rib tumors should be included in a differential diagnosis in cats with extraluminal esophageal stricture. CT should be performed for treatment planning. Surgical treatment was curative in this case.

  3. Asymmetrically Substituted and π-Conjugated 2,2'-Bipyridine Derivatives: Synthesis, Spectroscopy, Computation, and Crystallography.

    Science.gov (United States)

    Bodapati, Ramakrishna; Sarma, Monima; Kanakati, Arunkumar; Das, Samar K

    2015-12-18

    A new series of monosubstituted styryl- and bistyryl-2,2'-bipyridine luminophores (compounds 16-23) have been synthesized via Horner-Wadsworth-Emmons reaction involving a monophosphonate and donor aromatic aldehydes. In the title chromophores, the amino donors are varied between acyclic and cyclic while the alkoxy donors are varied in terms of their number and position. The absorption maxima of these chromophores shift predominantly due to intramolecular charge transfer (ICT) between different donor and acceptor moieties. The title donor-acceptor molecules exhibit intense fluorescence in solution at room temperature, and their emissive behavior has been found to be highly sensitive to solvent polarity. The fluorescence spectra and quantum yields of all the chromophores were recorded in four different solvent media, and the chromophores 16, 17, 19, and 21 exhibit fluorescence in the solid state too. The influence of the nature and position of the donor functionalities in the conjugated backbone of the bipyridine moiety on the electronic absorption properties of the title chromophores (16-23) has been demonstrated, which has further been corroborated by DFT and TD-DFT computation both in gas phase and in solution phase. The crystal structure of compound 18 has been described as a representative member of the family (16-23).

  4. Acute unilateral isolated ptosis.

    Science.gov (United States)

    Court, Jennifer Helen; Janicek, David

    2015-01-05

    A 64-year-old man presented with a 2-day history of acute onset painless left ptosis. He had no other symptoms; importantly pupils were equal and reactive and eye movements were full. There was no palpable mass or swelling. He was systemically well with no headache, other focal neurological signs, or symptoms of fatigue. CT imaging showed swelling of the levator palpebrae superioris suggestive of myositis. After showing no improvement over 5 days the patient started oral prednisolone 30 mg reducing over 12 weeks. The ptosis resolved quickly and the patient remains symptom free at 6 months follow-up. Acute ptosis may indicate serious pathology. Differential diagnoses include a posterior communicating artery aneurysm causing a partial or complete third nerve palsy, Horner's syndrome, and myasthenia gravis. A careful history and examination must be taken. Orbital myositis typically involves the extraocular muscles causing pain and diplopia. Isolated levator myositis is rare. 2015 BMJ Publishing Group Ltd.

  5. Development of Low Energy Gap and Fully Regioregular Polythienylenevinylene Derivative

    Directory of Open Access Journals (Sweden)

    Tanya M. S. David

    2014-01-01

    Full Text Available Low energy gap and fully regioregular conjugated polymers find its wide use in solar energy conversion applications. This paper will first briefly review this type of polymers and also report synthesis and characterization of a specific example new polymer, a low energy gap, fully regioregular, terminal functionalized, and processable conjugated polymer poly-(3-dodecyloxy-2,5-thienylene vinylene or PDDTV. The polymer exhibited an optical energy gap of 1.46 eV based on the UV-vis-NIR absorption spectrum. The electrochemically measured highest occupied molecular orbital (HOMO level is −4.79 eV, resulting in the lowest unoccupied molecular orbital (LUMO level of −3.33 eV based on optical energy gap. The polymer was synthesized via Horner-Emmons condensation and is fairly soluble in common organic solvents such as tetrahydrofuran and chloroform with gentle heating. DSC showed two endothermic peaks at 67°C and 227°C that can be attributed to transitions between crystalline and liquid states. The polymer is thermally stable up to about 300°C. This polymer appears very promising for cost-effective solar cell applications.

  6. Structure-activity relationship studies of 1,7-diheteroarylhepta-1,4,6-trien-3-ones with two different terminal rings in prostate epithelial cell models.

    Science.gov (United States)

    Wang, Rubing; Zhang, Xiaojie; Chen, Chengsheng; Chen, Guanglin; Sarabia, Cristian; Zhang, Qiang; Zheng, Shilong; Wang, Guangdi; Chen, Qiao-Hong

    2017-06-16

    To systematically investigate the structure-activity relationships of 1,7-diheteroarylhepta-1,4,6-trien-3-ones in three human prostate cancer cell models and one human prostate non-neoplastic epithelial cell model, thirty five 1,7-diarylhepta-1,4,6-trien-3-ones with different terminal heteroaromatic rings have been designed for evaluation of their anti-proliferative potency in vitro. These target compounds have been successfully synthesized through two sequential Horner-Wadsworth-Emmons reactions starting from the appropriate aldehydes and tetraethyl (2-oxopropane-1,3-diyl)bis(phosphonate). Their anti-proliferative potency against PC-3, DU-145 and LNCaP human prostate cancer cell lines can be significantly enhanced by the manipulation of the terminal heteroaromatic rings, further demonstrating the utility of 1,7-diarylhepta-1,4,6-trien-3-one as a potential scaffold for the development of anti-prostate cancer agents. The optimal analog 40 is 82-, 67-, and 39-fold more potent than curcumin toward the three prostate cancer cell lines, respectively. The experimental data also reveal that the trienones with two different terminal aromatic rings possess greater potency toward three prostate cancer cell lines, but also have greater capability of suppressing the proliferation of PWR-1E benign human prostate epithelial cells, as compared to the corresponding counterparts with two identical terminal rings and curcumin. The terminal aromatic rings also affect the cell apoptosis perturbation. Copyright © 2017 Elsevier Masson SAS. All rights reserved.

  7. Traumatic cervical artery dissection.

    Science.gov (United States)

    Nedeltchev, Krassen; Baumgartner, Ralf W

    2005-01-01

    Traumatic cervical artery dissection (TCAD) is a complication of severe blunt head or neck trauma, the main cause being motor vehicle accidents. TCAD are increasingly recognized, and incidences of up to 0.86% for internal carotid and 0.53% for traumatic vertebral artery dissections (TVAD) among blunt trauma victims are reported. Diagnostic evaluation for TCAD is mandatory in the presence of (1) hemorrhage of potential arterial origin originating from the nose, ears, mouth, or a wound; (2) expanding cervical hematoma; (3) cervical bruit in a patient >50 years of age; (4) evidence of acute infarct at brain imaging; (5) unexplained central or lateralizing neurological deficit or transient ischemic attack, or (6) Horner syndrome, neck or head pain. In addition, a number of centers screen asymptomatic patients with blunt trauma for TCAD. Catheter angiography is the standard of reference for diagnosis of TCAD. Color duplex ultrasound, computed tomographic, and magnetic resonance angiography are noninvasive screening alternatives, but each method has its diagnostic limitations compared to catheter angiography. Anticoagulants and antiplatelet drugs may prevent ischemic stroke, but bleeding from traumatized tissues may offset the benefits of antithrombotic treatment. Endovascular therapy of dissected vessels, thrombarterectomy, direct suture of intimal tears, and extracranial-intracranial bypass should be considered in exceptional cases. Neurological outcome is probably worse in TCAD compared to spontaneous CAD, although it is unclear whether this is due to dissection-induced ischemic stroke or associated traumatic lesions.

  8. Disseminated peripheral neuroblastoma in a Rhodesian Ridgeback dog.

    Science.gov (United States)

    Cook, R W; Abraham, L A; McCowan, C I

    2017-04-01

    A 4-year-old neutered male Rhodesian Ridgeback dog with right-sided Horner's syndrome, bilateral laryngeal paralysis, neck pain and bilateral hindlimb ataxia was euthanased following deterioration of its neurological status. Necropsy examination revealed an off-white retropharyngeal neoplastic mass (100 × 30 × 30 mm) attached to the base of the skull on the right side and macroscopic nodular metastases in the spleen and three vertebral bodies (C6, C7 and T6), including a nodule attached to the dura at C7. Histological evidence of neuroblastic tumour was detected in these macroscopic lesions, a regional lymph node, bone marrow of a femur and all 15 vertebral bodies (C1-T8) examined, including the three with macroscopic metastases, and in the lumens of small blood vessels in the lungs and liver. Ganglion cell differentiation was detected only in the primary retropharyngeal mass, one splenic nodule and the C7 dural nodule. Neoplastic cells were immunoreactive to neurofilament protein (ganglion cells only), vimentin and synaptophysin, and were negative for S100 protein, GFAP, CD3 and Pax5. The diagnosis was disseminated peripheral neuroblastoma, differentiating subtype (International Neuroblastoma Pathology Classification), with likely primary involvement of the right cranial cervical ganglion. This appears to be the first report of neuroblastoma in a dog with widespread occult haematogenous metastasis to bone marrow. © 2017 Australian Veterinary Association.

  9. Systemic optimization and structural evaluation of quinoline derivatives as transthyretin amyloidogenesis inhibitors.

    Science.gov (United States)

    Kim, Boyoung; Park, Hwanggue; Lee, Seul Ki; Park, Sung Jean; Koo, Tae-Sung; Kang, Nam Sook; Hong, Ki Bum; Choi, Sungwook

    2016-11-10

    Wild type transthyretin (TTR) and mutant TTR misfold and misassemble into a variety of extracellular insoluble amyloid fibril and/or amorphous aggregate, which are associated with a variety of human amyloid diseases. To develop potent TTR amyloidogenesis inhibitors, we have designed and synthesized a focused library of quinoline derivatives by Pd-catalyzed coupling reaction and by the Horner-Wadsworth-Emmons reaction. The resulting 2-alkynylquinoline derivatives, (E)-2-alkenylquinoline derivatives, and (E)-3-alkenylquinoline derivatives were evaluated to inhibit TTR amyloidogenesis by utilizing the acid-mediated TTR fibril formation. Among these quinoline derivatives, compound 14c exhibited the most potent anti-TTR fibril formation activity in the screening studies, with IC50 values of 1.49 μM against WT-TTR and 1.63 μM against more amyloidogenic V30 M TTR mutant. That is comparable to that of approved therapeutic drug, tafamidis, to ameliorate transthyretin-related amyloidosis. Furthermore, rationalization of the increased efficacy of compound 14c bearing a hydrophobic substituent, such as chloride, was carried out by utilizing in silico docking study that could focus on the region of the thyroid hormone thyroxine (T4) binding sites. Additionally, the most potent compound 14c exhibited good pharmacokinetics properties. Taken together, the novel quinoline derivatives could potentially be explored as potential drug candidates to treat the human TTR amyloidosis. Copyright © 2016 Elsevier Masson SAS. All rights reserved.

  10. BF3 x Et2O-mediated cascade cyclizations: synthesis of schweinfurthins F and G.

    Science.gov (United States)

    Mente, Nolan R; Neighbors, Jeffrey D; Wiemer, David F

    2008-10-17

    The total synthesis of the natural stilbene (+)-schweinfurthin G (8) has been accomplished through a sequence based on an efficient cationic cascade cyclization. This cascade process is initiated by Lewis acid promoted ring opening of an epoxide and terminated through a novel reaction with a phenolic oxygen "protected" as its MOM ether. Several Lewis acids have been examined for their ability to induce this new reaction, and BF3 x Et2O was found to be the most effective. The only major byproduct under these conditions was one where the expected secondary alcohol was found as its MOM ether derivative (e.g., 30). While this byproduct could be converted to the original target compound through hydrolysis, it also could be employed as a protected alcohol to allow preparation of a benzylic phosphonate (43) without dehydration of the secondary alcohol. The resulting phosphonate was employed in a Horner-Wadsworth-Emmons condensation with an aldehyde representing the right half of the target compounds, an approach complementary to previous studies based on condensation of a right-half phosphonate and a left-half aldehyde.

  11. Transoral Robotic Surgery in Retrostyloid Parapharyngeal Space Schwannomas

    Directory of Open Access Journals (Sweden)

    Mohssen Ansarin

    2014-01-01

    Full Text Available Parapharyngeal space (PPS tumors are very rare, representing about 0.5% of head and neck neoplasms. An external surgical approach is mainly used. Several recent papers show how transoral robotic surgery (TORS excision could be a prospective tool to remove mainly benign lesions in PPS; no cases of neurogenic tumors from the retrostyloid space treated with TORS have been reported. We present two cases which underwent TORS for schwannomas from the retrostyloid compartment of the parapharyngeal space. Clinical diagnosis of schwannoma was performed by magnetic resonance imaging (MRI. In the first case a 6 cm neurogenic tumor arose from the vagus nerve and in the second case a 5 cm mass from the sympathetic chain was observed. Both cases were treated successfully by the TORS approach using a new “J”-shaped incision through the mucosa and superior pharyngeal constrictor muscle. Left vocal cord palsy and the Claude Bernard Horner syndrome, respectively, were observed as expected postsurgical sequelae. In case 1 the first bite syndrome developed after three months, while no complications were observed in case 2. Both patients regained a normal swallowing function. TORS seems to be a feasible mini-invasive procedure for benign PPS masses including masses in the poststyloid space.

  12. A neural network model of harmonic detection

    Science.gov (United States)

    Lewis, Clifford F.

    2003-04-01

    Harmonic detection theories postulate that a virtual pitch is perceived when a sufficient number of harmonics is present. The harmonics need not be consecutive, but higher harmonics contribute less than lower harmonics [J. Raatgever and F. A. Bilsen, in Auditory Physiology and Perception, edited by Y. Cazals, K. Horner, and L. Demany (Pergamon, Oxford, 1992), pp. 215-222 M. K. McBeath and J. F. Wayand, Abstracts of the Psychonom. Soc. 3, 55 (1998)]. A neural network model is presented that has the potential to simulate this operation. Harmonics are first passed through a bank of rounded exponential filters with lateral inhibition. The results are used as inputs for an autoassociator neural network. The model is trained using harmonic data for symphonic musical instruments, in order to test whether it can self-organize by learning associations between co-occurring harmonics. It is shown that the trained model can complete the pattern for missing-fundamental sounds. The Performance of the model in harmonic detection will be compared with experimental results for humans.

  13. D-seco-Vitamin D analogs having reversed configurations at C-13 and C-14: Synthesis, docking studies and biological evaluation.

    Science.gov (United States)

    Szybinski, Marcin; Sokolowska, Katarzyna; Sicinski, Rafal R; Plum, Lori A; DeLuca, Hector F

    2017-10-01

    Prompted by results of molecular modeling performed on the seco-d-ring-vitamins D, we turned our attention to such analogs, having reversed configurations at C-13 and C-14, as the next goals of our studies on the structure-activity relationship for vitamin D compounds. First, we developed an efficient total synthesis of the "upper" C/seco-d-ring fragment with a 7-carbon side chain. Then, we coupled it with A-ring fragments using Sonogashira or Wittig-Horner protocol, providing the targeted D-seco analogs of 1α,25-dihydroxyvitamin D 3 and 1α,25-dihydroxy-19-norvitamin D 3 possessing a vinyl substituent at C-14 and a double bond between C-17 and C-20. The affinities of the synthesized vitamin D analogs to the full-length recombinant rat VDR were examined, as well as their differentiating and transcriptional activities. In these in vitro tests, they were significantly less active compared to 1α,25-(OH) 2 D 3 . Moreover, it was established that the analogs tested in vivo in rats showed no calcemic potency. Copyright © 2016 Elsevier Ltd. All rights reserved.

  14. Bone single photon emission computed tomography (SPECT in a patient with Pancoast tumor: a case report

    Directory of Open Access Journals (Sweden)

    Hamid Javadi

    Full Text Available CONTEXT: Non-small cell lung carcinomas (NSCLCs of the superior sulcus are considered to be the most challenging type of malignant thoracic disease. In this disease, neoplasms originating mostly from the extreme apex of the lung expand to the chest wall and thoracic inlet structures. Multiple imaging procedures have been applied to identify tumors and to stage and predict tumor resectability in surgical operations. Clinical examinations to localize pain complaints in shoulders and down the arms, and to screen for Horner's syndrome and abnormalities seen in paraclinical assessments, have been applied extensively for differential diagnosis of superior sulcus tumors. Although several types of imaging have been utilized for diagnosing and staging Pancoast tumors, there have been almost no reports on the efficiency of whole-body bone scans (WBBS for detecting the level of abnormality in cases of superior sulcus tumors. CASE REPORT: We describe a case of Pancoast tumor in which technetium-99m methylene diphosphonate (Tc-99m MDP bone single-photon emission-computed tomography (SPECT was able to accurately detect multiple areas of abnormality in the vertebrae and ribs. In describing this case, we stress the clinical and diagnostic points, in the hope of stimulating a higher degree of suspicion and thereby facilitating appropriate diagnosis and treatment. From the results of this study, further clinical trials to evaluate the potential of SPECT as an efficient imaging tool for the work-up on cases of Pancoast tumor are recommended.

  15. Hydraulic Conductivity Measurements with HTU at Eurajoki, Olkiluoto, Borehole OL-KR15 and OL-KR15B, Year 2004

    Energy Technology Data Exchange (ETDEWEB)

    Haemaelaeinen, H.

    2005-07-01

    As a part of the site investigations for the disposal of spent nuclear fuel, hydraulic conductivity measurements were carried out in borehole OL-KR15 at Eurajoki, Olkiluoto. The objective was to investigate the distribution of the hydraulic conductivity in the surrounding bedrock volume. Measurements were carried out during 2003-2004 in two phases. The total length of the borehole OL-KR15 is 518,85 m and 158 45,14 m. Of the 471 ,5 m + 44,5 m total measurable length 414 m was covered with 237 standard tests with 2 m packer separation as specified in the research plan, partly with 1 m overlaps. 259 tests were initiated, but some of them ended to hardware or software errors or unsuitable parameter values. Double-packer constant-head method was used throughout with nominal 200 kPa overpressure. Injection stage lasted normally 20 minutes and fall-off stage 10 minutes. The tests were often shortened if there were clear indications that the hydraulic conductivity is below the measuring range of the system. The pressure in the test section was let to stabilise at least 5 min before injection. In some test sections the stabilisation or injection stage lasted several hours. Two transient (Horner and 1/Q) interpretations and one stationary-state (Moye) interpretation were made in-situ immediately after the test. The Hydraulic Testing Unit (HTU-system) is owned by Posiva Oy and it was operated by Geopros Oy. (orig.)

  16. Comparing two methods of thoracoscopic sympathectomy for palmar hyperhidrosis.

    Science.gov (United States)

    Ibrahim, Magdi; Allam, Abdulla

    2014-09-01

    Hyperhidrosis can cause significant professional and social handicaps. Thoracic endoscopic sympathectomy has become the surgical technique of choice for treating intractable palmar hyperhidrosis and can be performed through multiple ports or a single port. This prospective study compares outcomes between the two methods. The study followed 71 consecutive patients who underwent video-assisted sympathectomy for palmar hyperhidrosis between January 2008 and June 2012. In all patients, the procedure was bilateral and performed in one stage. The multiple-port method was used in 35 patients (group A) and the single-port method in 36 patients (group B). Preoperative, intraoperative, and postoperative variables; morbidity, recurrence; and survival were compared in both groups. The procedure was successful in 100% of the patients; none experienced a recurrence of palmar hyperhidrosis, Horner syndrome (oculosympathetic palsy), or serious postoperative complications, and none died. No patients required conversion to an open procedure. Residual minimal pneumothorax occurred in two patients (5.7%) in group A and in one patient (2.8%) in group B. Minimal hemothorax occurred in one patient (2.9%) in group A and in three patients (8.3%) in group B. Compensatory hyperhidrosis occurred in seven patients (20%) in group A and in eight patients (22.2%) in group B. No difference was found between the multiple- and single-port methods. Both are effective, safe minimally invasive procedures that permanently improve quality of life in patients with palmar hyperhidrosis.

  17. A Right-sided Aortic Arch with Kommerell's Diverticulum of the Aberrant Left Subclavian Artery Presenting with Syncope

    Directory of Open Access Journals (Sweden)

    Ming-Hsun Yang

    2009-05-01

    Full Text Available A right-sided aortic arch with an aneurysm of the aberrant subclavian artery is a rare disease. We report a case of Kommerell's diverticulum of an aberrant left subclavian artery in a patient with a right-sided aortic arch. Fewer than 50 cases have been reported in the literature. A number of operative strategies are described. Right thoracotomy provides good exposure and avoids the morbidity associated with bilateral thoracotomy or sternotomy and thoracotomy. In our patient with symptoms of dysphagia, syncope, and left subclavian steal syndrome, a left thoracotomy was used. The repair was accomplished by division of a left ligamentum arteriosum, obliteration of the Kommerell's aneurysm, and an aorto-subclavian bypass. Postoperative complications included left vocal cord palsy and Horner's syndrome. Hoarseness and left ptosis recovered spontaneously 3 months after surgery, and the patient remained symptom-free at the 1-year follow-up. We believe a left thoracotomy for direct repair of Kommerell's diverticulum is a simple and safe method without the increased morbidity found in other procedures.

  18. Electrophilic derivatives antagonise pheromone attraction in Cydia pomonella.

    Science.gov (United States)

    Sans, Albert; Gago, Rafael; Mingot, Ares; García, Wanda; Bosch, Dolors; Coll, Josep; Rosell, Gloria; Bosch, M Pilar; Riba, Magí; Guerrero, Angel

    2013-11-01

    Pheromone antagonists are good disruptants of the pheromone communication in insects and, as such, have been used in mating disruption experiments. In this study, new non-fluorinated electrophilic keto derivatives structurally related to the pheromone of Cydia pomonella (codlemone) have been synthesised and tested as putative pheromone antagonists. Codlemone (1) was prepared in excellent stereoselectivity in a new, iterative approach involving two Horner-Wadsworth-Emmons reactions. Methyl ketone (2), keto ester (3) and diketone (4) were obtained from codlemone in straightforward approaches in good overall yields and excellent stereochemical purity (≥98% E,E). In electrophysiology, only compound 2 displayed inhibition of the antennal response to the pheromone after presaturation of the antennal receptors. Compounds 2 to 4 did not inhibit the pheromone-degrading enzyme responsible for codlemone metabolism, but mixtures of ketone 2 and diketone 4 with codlemone elicited erratic flights on males in a wind tunnel. In the field, blends of either compound (2 or 4) with the pheromone caught significantly fewer males than codlemone alone. Codlemone and the potential antagonists 2 to 4 have been synthesised in good yields and excellent stereoselectivity. These chemicals behave as pheromone antagonists of the codling moth both in the laboratory and in the field. © 2013 Society of Chemical Industry.

  19. Synthesis, Biological Evaluation, and Molecular Modeling Studies of New Oxadiazole-Stilbene Hybrids against Phytopathogenic Fungi

    Science.gov (United States)

    Jian, Weilin; He, Daohang; Song, Shaoyun

    2016-08-01

    Natural stilbenes (especially resveratrol) play important roles in plant protection by acting as both constitutive and inducible defenses. However, their exogenous applications on crops as fungicidal agents are challenged by their oxidative degradation and limited availability. In this study, a new class of resveratrol-inspired oxadiazole-stilbene hybrids was synthesized via Wittig-Horner reaction. Bioassay results indicated that some of the compounds exhibited potent fungicidal activity against Botrytis cinerea in vitro. Among these stilbene hybrids, compounds 11 showed promising inhibitory activity with the EC50 value of 144.6 μg/mL, which was superior to that of resveratrol (315.6 μg/mL). Remarkably, the considerably abnormal mycelial morphology was observed in the presence of compound 11. The inhibitory profile was further proposed by homology modeling and molecular docking studies, which showed the possible interaction of resveratrol and oxadiazole-stilbene hybrids with the cytochrome P450-dependent sterol 14α-demethylase from B. cinerea (BcCYP51) for the first time. Taken together, these results would provide new insights into the fungicidal mechanism of stilbenes, as well as an important clue for biology-oriented synthesis of stilbene hybrids with improved bioactivity against plant pathogenic fungi in crop protection.

  20. [Carbon-carbon bond formation based on alkenylphosphonates].

    Science.gov (United States)

    Nagaoka, Y

    2001-11-01

    We have been engaged in the development of asymmetric conjugate addition reactions of lithium thiolates, organolithiums and organocopper reagents under the control of external chiral ligands and we have also developed an efficient asymmetric Horner-Wadsworth-Emmons (HWE) reaction using an external chiral Ligand. We attempted to synthesize axial chiral allenes by combination of these conjugate addition reaction and HWE reaction. In the course of this study, we found that Michael-aldol reaction of alkenylphosphonates 1 using LDA and aldehydes results in the direct formation of alpha,beta-unsaturated hydroxyphosphonate 4, which was efficiently converted to allene by treatment with KH or KH-18-crown-6. Furthermore, allenes were synthesized by sequential double HWE reaction in one-flask manner starting from methylenebisphosphonate 8. The key to success is a metal exchange of intermediate lithium alkoxide 4-Li to potassium alkoxide 4-K by the addition of t-BuOK. As our continuous study of carbon-carbon bond formation based on alkenylphosphonates, a cyclization reaction of bisalkenylphosphonate 6 was developed. Although the treatment of 6 with organolithium reagents afforded a mixture of addition-cyclization product 9 and deprotonation-cyclization product 10, the treatment of 6 with LDA gave 10 selectively. These cyclization methods were applied to the synthesis of efficient chiral phosphine ligands.

  1. Structural property relationships in conjugated polymers

    Science.gov (United States)

    Lynch, P.; O'Neill, L.; Whelan, J.; McNamara, M.; Byrne, H. J.

    2005-06-01

    The synthesis of a series of PPV derivative polymers by the Wittig-Horner reaction is described. The structure of each polymer is varied and the effects of these variations on the optical properties is explored. The effects of alkyloxy side chains is observed between the PPV derivatives Poly(-p-phenylvinylene-co-2,5-bis-octyloxy phenylvinylene.) PPV-OPV and Poly (para-2,5-bis-(n-octyloxy)-phenylvinylene) POPV. The phenyl units of the soluble PPV derivative POPV are replaced by alternate naphthyl units in the polymer Poly(2,5-bis(n-octyloxy)-1,4-phenylene vinylene-1,5-bis(n-octyloxy)-2,6-naphthylene vinylene) POPN-ONV and then fully by naphthyl units in Poly(2,6-bis-(n-octyloxy)-1,5-NaphthyleneVinylene) PONV. The addition of alkyloxy sidechains served to red shift the fluorescence emission as expected. The systematic conversion of phenyl to naphthyl units blue shifted the emission considerably while reducing the Stokes shift. There is evidence to suggest some localization of the pi electrons over the aromatic units of the polymer backbone. PONV is shown to have greater stability towards photo-oxidation then either POPV or PPV-OPV.

  2. Application of linear and spherical flow analysis techniques to field problems--case studies

    Energy Technology Data Exchange (ETDEWEB)

    Kohlhaas, C.A.; delGiuoice, C.; Abbott, W.A.

    1982-09-01

    Most engineers examine well-test data only with techniques developed for flow in a horizontal cylindrical-radial pattern toward the wellbore. Spherical and linear flow have application in many reservoir situations. Spherical flow has been examined extensively by many authors as an intermediate period between two radial-flow periods for wells which have a short completion interval in thick formations. Linear flow situations develop early in the life of wells which have been fracture-treated: their early linear-flow periods are followed by radial flow. Linear flow may develop late in a well test after a period of early radial flow due to certain configurations of reservoir geometry. Techniques for analyzing spherical and linear flow are summarized here. Data plots which should be prepared and diagnostic features for recognizing and interpreting spherical and linear flow are outlined. These techniques are applied to three example cases to illustrate the methods of analysis and the types of information which can be developed from such analyses and cannot be obtained from the standard Horner-plot analysis.

  3. Design and synthesis of compounds that extend yeast replicative lifespan

    Science.gov (United States)

    Yang, Hongying; Baur, Joseph A.; Chen, Allen; Miller, Christine; Sinclair, David A.

    2011-01-01

    Summary This past decade has seen the identification of numerous conserved genes that extend lifespan in diverse species, yet the number of compounds that extend lifespan is relatively small. A class of compounds called STACs, which were identified as activators of Sir2/SIRT1 NAD+-dependent deacetylases, extend the lifespans of multiple species in a Sir2-dependent manner and can delay the onset of age-related diseases such as cancer, diabetes and neurodegeneration in model organisms. Plant-derived STACs such as fisetin and resveratrol have several liabilities, including poor stability and relatively low potency as SIRT1 activators. To develop improved STACs, stilbene derivatives with modifications at the 4′ position of the B ring were synthesized using a Horner-Emmons-based synthetic route or by hydrolyzing deoxyrhapontin. Here, we describe synthetic STACs with lower toxicity toward human cells, and higher potency with respect to SIRT1 activation and lifespan extension in Saccharomyces cerevisiae. These studies show that it is possible to improve upon naturally occurring STACs based on a number of criteria including lifespan extension. PMID:17156081

  4. Methodology and Natural Product Syntehsis: (A) Novel Glycosyl Donors; (B) N-Sulfinyl Metallodienamines and Their Application to the Total Synthesis of (-)-Albocycline

    Science.gov (United States)

    Chatare, Vijay K.

    My research involved in two different areas, development of novel glycosylation methodology and scope in oligosaccharide synthesis. A new scaffold for antibiotic development targeting the bacterial cell wall: Total synthesis of Albocycline and its analogs to see the mechanism of action in cell wall biosynthesis. Developed novel gem-dimethyl analogs of Fraser-Reid's NPGs from 3,3-dimethyl 4-pentenol and 2,2-dimethyl 4-pentenol. These donors are stable toward acidic and basic conditions, which makes them step-efficient when compared to other glycosylating agents. The scope and reactivity of 3,3-dimethyl 4-pentenyl glycosides of glucose, mannose, galactose, and N-acetylglucosamine have been studied extensively for oligosaccharide synthesis. The donors are readily prepared from commercial starting materials and both glycosylation and hydrolysis yields are in the synthetically useful in oligosaccharide synthesis. NSMD methodology introduced a key step in albocycline synthesis, where (-)-albocycline has great biological activity against "superbug" methicillin-resistant Staphylococcus aureus (MRSA). We hypothesize that albocycline inhibits the first committed step in bacterial cell wall biosynthesis. We have successfully completed two generation syntheses of albocycline. Vinylogous aldol on the left-handed fragment, aldehyde to get selectively up alcohol at the C-8 position using Davis-Ellman sulfinylimine chemistry and then oxidation with Davis oxaziridine to access requisite stereochemistry at C-4 alcohol followed by Horner-Wadsworth-Emmons to access seco-acid. Finally, a Keck macrolactonization reaction provided access to desired (-)-Albocycline.

  5. Age determination of vessel wall hematoma in spontaneous cervical artery dissection: A multi-sequence 3T Cardiovascular Magnetic resonance study

    Directory of Open Access Journals (Sweden)

    Habs Maximilian

    2011-11-01

    Full Text Available Abstract Background Previously proposed classifications for carotid plaque and cerebral parenchymal hemorrhages are used to estimate the age of hematoma according to its signal intensities on T1w and T2w MR images. Using these classifications, we systematically investigated the value of cardiovascular magnetic resonance (CMR in determining the age of vessel wall hematoma (VWH in patients with spontaneous cervical artery dissection (sCAD. Methods 35 consecutive patients (mean age 43.6 ± 9.8 years with sCAD received a cervical multi-sequence 3T CMR with fat-saturated black-blood T1w-, T2w- and TOF images. Age of sCAD was defined as time between onset of symptoms (stroke, TIA or Horner's syndrome and the CMR scan. VWH were categorized into hyperacute, acute, early subacute, late subacute and chronic based on their signal intensities on T1w- and T2w images. Results The mean age of sCAD was 2.0, 5.8, 15.7 and 58.7 days in patients with acute, early subacute, late subacute and chronic VWH as classified by CMR (p Conclusions Signal intensities of VWH in sCAD vary over time and multi-sequence CMR can help to determine the age of an arterial dissection. Furthermore, findings of this study suggest that the time course of carotid hematomas differs from that of cerebral hematomas.

  6. The impact of ordinate scaling on the visual analysis of single-case data.

    Science.gov (United States)

    Dart, Evan H; Radley, Keith C

    2017-08-01

    Visual analysis is the primary method for detecting the presence of treatment effects in graphically displayed single-case data and it is often referred to as the "gold standard." Although researchers have developed standards for the application of visual analysis (e.g., Horner et al., 2005), over- and underestimation of effect size magnitude is not uncommon among analysts. Several characteristics have been identified as potential contributors to these errors; however, researchers have largely focused on characteristics of the data itself (e.g., autocorrelation), paying less attention to characteristics of the graphic display which are largely in control of the analyst (e.g., ordinate scaling). The current study investigated the impact that differences in ordinate scaling, a graphic display characteristic, had on experts' accuracy in judgments regarding the magnitude of effect present in single-case percentage data. 32 participants were asked to evaluate eight ABAB data sets (2 each presenting null, small, moderate, and large effects) along with three iterations of each (32 graphs in total) in which only the ordinate scale was manipulated. Results suggest that raters are less accurate in their detection of treatment effects as the ordinate scale is constricted. Additionally, raters were more likely to overestimate the size of a treatment effect when the ordinate scale was constricted. Copyright © 2017 Society for the Study of School Psychology. Published by Elsevier Ltd. All rights reserved.

  7. (E-N,N-Diethyl-2,6-diisopropyl-4-[2-(4-nitrophenylethenyl]aniline

    Directory of Open Access Journals (Sweden)

    Heiner Detert

    2013-12-01

    Full Text Available The title compound, C24H32N2O2, was prepared by Horner olefination of 4-diethylamino-3,5-diisopropylbenzaldehyde and diethyl p-nitrobenzylphosphonate. There are two independent molecules (A and B in the asymmetric unit. Their main axes, defined by the line connecting the N atoms of the nitro and amino groups, open an angle of 79.42 (3°. Steric hindrance around the amino group is reflected in a long aryl C—N bond [1.434 (3 Å for molecule A and 1.440 (3 Å for molecule B], a pyramidal geometry [angle sum = 350.0 (2° for molecule A and 349.6 (2° for molecule B], and dihedral angles between the phenylene group and the plane defined by the CH2—N—CH2 unit of 86.9 (3° for molecule A and 88.3 (3° for molecule B. This gives structural support for the electronic decoupling of the amino group from the nearly planar nitrostilbene moiety (r.m.s. deviation for C, N and O atoms = 0.097 for molecule A and 0.107 Å for molecule B.

  8. Superior cerebellar artery infarction in endovascular treatment for tentorial dural arteriovenous fistulas

    Energy Technology Data Exchange (ETDEWEB)

    Zhang Jingbo; Lv Xianli; Jiang Chuhan; Li Youxiang [Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, 6, Tiantan, Xili, Chongwen, 100050, Beijing (China); Wu Zhongxue, E-mail: ttyyzjb@sina.co [Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, 6, Tiantan, Xili, Chongwen, 100050, Beijing (China)

    2010-06-15

    Background: Superior cerebellar artery (SCA) syndrome shows ipsilateral cerebellar ataxia and Horner's syndrome, contralateral superficial sensory disturbance, as well as nystagmus toward the impaired side, vertigo, and nausea. Occasionally, unilateral lesions may produce bilateral hypogeusia and contralateral hypoacusia. Objective: To report 2 patients with unilateral lower midbrain ischemic lesions of the inferior colliculus level caused by transarterial embolization for tentorial dural arteriovenous fistulas (TDAVFs). Methods: Hospital records for 21 patients with TDAVFs mainly treated by endovascular techniques between 2005 and 2008 were reviewed. Two patients with MRI evidence of unilateral SCA territory infarction were investigated. Results: Of 21 patients, 2 treated transarterially with Onyx-18 (a nonahesive liquid embolic agent) developed infarctions in the territory of SCA. One patient had lateral SCA infarction characterized by ipsilateral gait ataxia, contralateral hemihypoesthesia, with additional ipsilateral ocular motor palsy and bilateral gustatory loss. And the other patient had medial SCA infarction characterized by ipsilateral ataxia contralateral hemihypoesthesia with additional contralateral hypoacusia. Conclusion: SCA infarction can be caused by transarterial injection of Onyx-18 via SCA or the posterior cerebral artery (PCA) for TDAVFs and additionally presented with gustatory loss and deafness, which is generally not a feature of the SCA syndrome.

  9. Dissecting aneurysm of the cervical internal carotid artery

    International Nuclear Information System (INIS)

    Itoh, Yoshihiro; Itoyama, Youichi; Fukumura, Akinobu; Matsukado, Yasuhiko; Kodama, Takafumi.

    1987-01-01

    On lifting a heavy case, a 51-year-old male experienced a sudden onset of headache with giddiness and clouded vision. A week later, vertigo and right hand numbness were added to his symptoms. The next day anisocoria (right > left) and dilation of the left retinal veins were noted. Cranial computed tomography (CT) scan appeared normal and there were no other remarkable neurological findings. The patient was treated conservatively for cerebral infarction, however, the headache worsened and diplopia occurred. Neurological examination on admission revealed nothing unusual except for left Horner's syndrome. Physical examination showed a palpable sausage-like painless tumor on the left side of the neck. Angiography showed a narrowing of the internal carotid artery in the cervical region with a small dissecting aneurysm at the C3 level. Cervical CT scan at the upper C3 level showed a low density lunar defect in the high density section of the enlarged left internal carotid artery. The patient was operated on by superficial temporal artery-middle cerebral artery anastomosis to increase the intracranial blood flow. Postoperatively the symptoms were quickly relieved. Angiography 1 month later showed less narrowing of the carotid artery, though the dissecting aneurysm still remained. Postoperative cervical CT scan showed the left internal carotid artery to be of normal size. The patient returned to his work in normal condition 2 months later. It is emphasized that cervical CT scan may be useful in the diagnosis of this unusual type of cervical dissecting aneurysm. (author)

  10. Simulation of selected ground-water pumping scenarios at Fort Stewart and Hunter Army Airfield, Georgia

    Science.gov (United States)

    Cherry, Gregory S.

    2006-01-01

    A regional MODFLOW ground-water flow model of parts of coastal Georgia, Florida, and South Carolina was used to evaluate the effects of current and hypothetical groundwater withdrawal, and the relative effects of pumping in specific areas on ground-water flow in the Upper Floridan aquifer near Fort Stewart and Hunter Army Airfield (HAAF), coastal Georgia. Simulation results for four steady-state pumping scenarios were compared to each other and to a Base Case condition. The Base Case represents year 2000 pumping rates throughout the model area, with the exception that permitted annual average pumping rates for the year 2005 were used for 26 production wells at Fort Stewart and HAAF. The four pumping scenarios focused on pumping increases at HAAF resulting from projected future demands and additional personnel stationed at the facility and on reductions in pumping at Fort Stewart. Scenarios A and B simulate 1- and 2-million-gallon-perday (Mgal/d) increases, respectively, at HAAF. Simulated water-level change maps for these scenarios indicate an area of influence that extends into parts of Bryan, Bulloch, Chatham, Effingham, and Liberty Counties, Ga., and Beaufort and Jasper Counties, S.C., with maximum drawdowns from 0.5 to 4 feet (ft) for scenario A and 1 to 8 ft for Scenario B. For scenarios C and D, increases in pumping at HAAF were offset by decreases in pumping at Fort Stewart. Scenario C represents a 1-Mgal/d increase at HAAF and a 1-Mgal/d decrease at Fort Stewart; simulated water-level changes range from 0.4 to -4 ft. Scenario D represents a 2-Mgal/d increase at HAAF and 2-Mgal/d decrease at Fort Stewart; simulated water-level changes range from 0.04 to -8 ft. The simulated water-level changes indicate an area of influence that extends into parts of Bryan, Bulloch, Chatham, Effingham, Liberty, and McIntosh Counties, Ga., and Jasper and Beaufort Counties, S.C. In general, decreasing pumping at Fort Stewart by an equivalent amount to pumping increases at HAAF

  11. Literature Survey Concerning the Feasibility of Remedial Leach for Select Phase I Caverns

    Energy Technology Data Exchange (ETDEWEB)

    Weber, Paula D. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Flores, Karen A. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Lord, David L. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-09-01

    Bryan Mound 5 ( BM5 ) and West Hackberry 9 ( WH9 ) have the potential to create a significant amount of new storage space should the caverns be deemed "leach - ready". This study discusses the original drilling history of the caverns, surrounding geology, current stability, and, based on this culmination of data, makes a preliminary assessment of the leach potential for the cavern. The risks associated with leaching BM5 present substantial problems for the SPR . The odd shape and large amount of insoluble material make it difficult to de termine whether a targeted leach would have the desired effect and create useable ullage or further distort the shape with preferential leaching . T he likelihood of salt falls and damaged or severed casing string is significant . In addition, a targeted le ach would require the relocation of approximately 27 MMB of oil . Due to the abundance of unknown factors associated with this cavern, a targeted leach of BM5 is not recommended. A targeted leaching of the neck of WH 9 could potentially eliminate or diminis h the mid - cavern ledge result ing in a more stable cavern with a more favorable shape. A better understanding of the composition of the surrounding salt and a less complicated leaching history yields more confidence in the ability to successfully leach this region. A targeted leach of WH9 can be recommended upon the completion of a full leach plan with consideration of the impacts upon nearby caverns .

  12. A Plan for Academic Biobank Solvency-Leveraging Resources and Applying Business Processes to Improve Sustainability.

    Science.gov (United States)

    Uzarski, Diane; Burke, James; Turner, Barbara; Vroom, James; Short, Nancy

    2015-10-01

    Researcher-initiated biobanks based at academic institutions contribute valuable biomarker and translational research advances to medicine. With many legacy banks once supported by federal funding, reductions in fiscal support threaten the future of existing and new biobanks. When the Brain Bank at Duke University's Bryan Alzheimer's Disease Center (ADRC) faced a funding crisis, a collaborative, multidisciplinary team embarked on a 2-year biobank sustainability project utilizing a comprehensive business strategy, dedicated project management, and a systems approach involving many Duke University entities. By synthesizing and applying existing knowledge, Duke Translational Medicine Institute created and launched a business model that can be adjusted and applied to legacy and start-up academic biobanks. This model provides a path to identify new funding mechanisms, while also emphasizing improved communication, business development, and a focus on collaborating with industry to improve access to biospecimens. Benchmarks for short-term Brain Bank stabilization have been successfully attained, and the evaluation of long-term sustainability metrics is ongoing. © 2015 Wiley Periodicals, Inc.

  13. A Plan for Academic Biobank Solvency—Leveraging Resources and Applying Business Processes to Improve Sustainability

    Science.gov (United States)

    Burke, James; Turner, Barbara; Vroom, James; Short, Nancy

    2015-01-01

    Abstract Researcher‐initiated biobanks based at academic institutions contribute valuable biomarker and translational research advances to medicine. With many legacy banks once supported by federal funding, reductions in fiscal support threaten the future of existing and new biobanks. When the Brain Bank at Duke University's Bryan Alzheimer's Disease Center (ADRC) faced a funding crisis, a collaborative, multidisciplinary team embarked on a 2‐year biobank sustainability project utilizing a comprehensive business strategy, dedicated project management, and a systems approach involving many Duke University entities. By synthesizing and applying existing knowledge, Duke Translational Medicine Institute created and launched a business model that can be adjusted and applied to legacy and start‐up academic biobanks. This model provides a path to identify new funding mechanisms, while also emphasizing improved communication, business development, and a focus on collaborating with industry to improve access to biospecimens. Benchmarks for short‐term Brain Bank stabilization have been successfully attained, and the evaluation of long‐term sustainability metrics is ongoing. PMID:25996355

  14. FROM REBEL SONGS TO MORO SONGS: POPULAR MUSIC AND MUSLIM FILIPINO PROTEST

    Directory of Open Access Journals (Sweden)

    Mary Talusan

    2010-06-01

    Full Text Available Rank-and-file supporters of the Bangsamoro rebellion (1972-1977 articulated their personal sentiments about the war in a genre called “rebelsongs.” The lyrics reveal that fighters’ personal aspirations often diverged from the official aims of separatist leaders. This article examines how rebel songs transitioned into “Moro songs” in the post-martial law era and why they came to more narrowly reflect the movement’s official goals of Moro unity and Islamic renewal. While Muslim separatists hinged their ideology on the concept of a shared religion and history distinct from the rest of the Philippines, the musical vehicle they approved to convey aspirations for political and religious autonomy was not, however, indigenous genres, such as tudtol or dindiken. Rather, Moro songs set Magindanaon lyrics to the melodies of American folk, country and rock ballads—such as Bryan Adams’s “Straight from the Heart”—to frame protests against the Philippine government’s incursion into the homeland, the fight for religion and calls for Muslim unity. By endorsing this hybrid genre to broadcast separatist goals, the movement opened up a communicative space for its message to internal and external audiences, across cultural and national boundaries.

  15. Exploring e-readers to support clinical medical education: two case studies.

    Science.gov (United States)

    Shurtz, Suzanne; von Isenburg, Megan

    2011-04-01

    Can e-readers loaded with medical textbooks and other relevant material benefit medical students, residents, and preceptors in clinical settings? The settings are North Carolina community clinics served by Duke University Medical Center and St. Joseph's Hospital in Bryan, Texas, and Scott and White Memorial Hospital in Temple, Texas. DUKE UNIVERSITY: Twenty second-year medical students and fourteen family medicine clerkship preceptors used Kindle e-readers in clinics during eight months of rotations. Students and preceptors provided feedback through an anonymous online survey. Texas A&M University: Nine fourth-year medical students in an elective compared medical textbooks in print, online, and on a Kindle. Six residents at a local hospital completed an anonymous online survey after a three-week loan of a Kindle loaded with medical textbooks. The e-reader's major advantages in clinical settings are portability and searchability. The selected e-reader's limitations include connection speed, navigation, and display. User preferences varied, but online resources were preferred. Participants suggested additional uses for Kindles in medical education. The selected e-reader's limitations may be resolved with further development of the device. Investigation of other e-readers is needed. Criteria for evaluating e-readers in clinical settings should include portability, searchability, speed, navigation, and display. Research comparing e-readers and mobile devices in clinical education is also warranted.

  16. It's who I am and what we eat. Mothers' food-related identities in family food choice.

    Science.gov (United States)

    Johnson, Cassandra M; Sharkey, Joseph R; Dean, Wesley R; Alex McIntosh, W; Kubena, Karen S

    2011-08-01

    This study aimed to understand mothers' everyday food choices using one type of visual method-participant-driven photo-elicitation (PDPE). The sample consisted of 12 low/moderate income mothers (26-53 years) living in Bryan/College Station, Texas. Each mother completed a photography activity, where she created photographs of her food experience, and an in-depth interview using the mother's photographs. Interview transcripts were analyzed using a grounded theory approach and coded using qualitative data analysis software ATLAS.ti. Mothers emphasized their identities related to food and eating as they described food-related decisions and activities. These identities influenced a mother's food choices for herself and those she made for her children. Analysis revealed that mothers with a more defined health identity made healthier choices for themselves and similar food choices for their children. In addition, they exhibited behaviors that positively influenced their children's food choices. Mothers who struggled to see themselves as healthy indulged with more junk food and indicated feelings of anxiety and guilt; these mothers' food choices were more disconnected from their children's. These findings underscore the importance of understanding how identities related to food and eating can influence food choices. Encouraging mothers to develop and maintain health identities may be one way to improve food and eating habits in families. Copyright © 2011 Elsevier Ltd. All rights reserved.

  17. Spotlight on solithromycin in the treatment of community-acquired bacterial pneumonia: design, development, and potential place in therapy

    Directory of Open Access Journals (Sweden)

    Donald BJ

    2017-12-01

    Full Text Available Bryan J Donald,1,2 Salim Surani,3–5 Harmeet S Deol,1,6 Uche J Mbadugha,1 George Udeani1,7 1Department of Pharmacy, Corpus Christi Medical Center, Corpus Christi, TX, 2Department of Clinical Sciences, School of Pharmacy, University of Louisiana at Monroe, Monroe, LA, 3Department of Pulmonology/Critical Care, Corpus Christi Medical Center, Corpus Christi, TX, 4Department of Medicine, College of Medicine, Texas A&M University Health Science Center, College Station, TX, 5Department of Medicine, College of Osteopathic Medicine, University of North Texas Health Science Center, Denton, TX, 6Department of Pharmacy Services, Yale New Haven Hospital, New Haven, CT, 7Pharmacy Practice, College of Pharmacy, Texas A&M University Health Science Center, Kingsville, TX, USA Abstract: Community-acquired bacterial pneumonia (CABP is a leading cause of death worldwide. However, antibacterial agents used to treat common pathogens in CABP are marked by adverse drug events and increasing antimicrobial resistance. Solithromycin is a new ketolide antibiotic, based on the macrolide antibiotic structure, being studied for use in CABP. It has efficacy in vitro against the common causative pathogens in CABP including Streptococcus pneumoniae, Haemophilus influenzae, and atypical pathogens. In Phase II and Phase III clinical trials, it has been demonstrated efficacious as a single agent for treatment of CABP with an apparently milder adverse event profile than alternative agents. Keywords: solithromycin, macrolide antibiotics, community-acquired bacterial pneumonia, CABP

  18. Experimental Configuration Effects on ICE Tumble Flow Evaluation

    Science.gov (United States)

    Santana, Bryan; Puzinauskas, Paulius

    2014-11-01

    The generation of ICE (Internal Combustion Engine) in-cylinder charge motions, such as swirl and tumble, have shown positive effects on reducing fuel consumption and exhaust emission levels at partial engine loads. Tumble flow is commonly measured utilizing a steady-flow rig and two-dimensional PIV (Particle Image Velocimetry) systems, among others. In order to optimize the tumble flow, it is important to retrieve accurate measurements. The tumble flow values could be affected by variations in the geometry and/or design of the steady-flow rig utilized during flow tests. In this research, a four-valve per cylinder head was tested on a steady flow bench, varying several aspects of the configuration to evaluate how they influence bulk momentum as well as PIV measurements. The configuration variations included symmetrical, asymmetrical and runner-fed configurations throughout testing. Volumetric flow rate and tumble strength flow measurements were retrieved at the selected L/D ratios. Additionally, several PIV seeding particles were characterized for size and shape. Corresponding PIV flow measurements using each type of seeding were made to evaluate how the particles influence the results. NSF ECE Grant #1358991 supported Bryan Santana Rivera as an REU student.

  19. William J. Morrison (1860-1926): co-inventor of the cotton candy machine.

    Science.gov (United States)

    Christen, Arden G; Christen, Joan A

    2005-07-01

    William James Morrison (1860-1926), from Nashville, Tennessee was a noted dentist, lawyer, author and leader in civic and political affairs. An 1890 graduate of the University of Tennessee Dental College, Dr. Morrison became President of the Tennessee State Dental Association in 1894. He had a wide interest in both science and politics, and was personally associated with both William Jennings Bryan and President Woodrow Wilson. Additionally, he was a popular author of children's books and particularly effective in fostering reading among youngsters. Also, Dr. Morrison patented several important inventions. He developed a process for extracting oils from cotton seed, and converting them into a lard substitute. Likewise, he devised a chemical process to purify the public drinking water for Nashville. In 1897, he and John C. Wharton (a fellow Nashville candy maker) conceived and co-patented an "electric candy machine" which produced cotton candy (then called "Fairy Floss".) This article provides background information about the production of spun sugar during medieval times and later, it describes the development of their cotton candy machine, the process of its operation and details about its eventual worldwide commercialization. In addition, it discusses the introduction of this new confection to the public, during the 184 day, Louisiana Purchase Exposition, held in St. Louis, MO. in 1904. In late 1926, Dr. Morrison, died of a stroke at age 66.

  20. Multiple Coarse Grid Multigrid Methods for Solving Elliptic Problems

    Science.gov (United States)

    Xiao, Shengyou; Young, David

    1996-01-01

    In this paper we describe some classes of multigrid methods for solving large linear systems arising in the solution by finite difference methods of certain boundary value problems involving Poisson's equation on rectangular regions. If parallel computing systems are used, then with standard multigrid methods many of the processors will be idle when one is working at the coarsest grid levels. We describe the use of Multiple Coarse Grid MultiGrid (MCGMG) methods. Here one first constructs a periodic set of equations corresponding to the given system. One then constructs a set of coarse grids such that for each grid corresponding to the grid size h there are four grids corresponding to the grid size 2*h. Multigrid operations such as restriction of residuals and interpolation of corrections are done in parallel at each grid level. For suitable choices of the multigrid operators the MCGMG method is equivalent to the Parallel Superconvergent MultiGrid (PSMG) method of Frederickson and McBryan. The convergence properties of MCGMG methods can be accurately analyzed using spectral methods.

  1. [Comment on] BOSP members

    Science.gov (United States)

    Richman, Barbara T.

    The new Board on Ocean Science and Policy (BOSP) (Eos, June 7, 1983, p. 402) met for the first time on May 4. John B. Slaughter, former director of the National Science Foundation and now chancellor of the University of Maryland in College Park, is the board's chairman. Other board members are D. James Baker, Jr. (University of Washington, Seattle); Kirk Bryan (Geophysical Fluid Dynamics Laboratory, Princeton University); John P. Craven (University of Hawaii); Charles L. Drake (Dartmouth College); Paul M. Fye (Woods Hole Oceanographic Institution); Edward D. Goldberg (Scripps Institution of Oceanography); G. Ross Heath (Oregon State University); Judith T. Kildow (Massachusetts Institute of Technology); John A. Knauss (University of Rhode Island); James J. McCarthy (Museum of Comparative Zoology, Harvard University); H. William Menard (Scripps Institution of Oceanography); C. Barry Raleigh (Lamont-Doherty Geological Observatory); Roger Revelle (University of California, San Diego); David A. Ross (Woods Hole Oceanographic Institution); Brian J. Rothschild (University of Maryland); William M. Sackett (University of South Florida); John H. Steele (Woods Hole Oceanographic Institution); and Carl Wunsch (MIT). Wallace Broecker (Lamont-Doherty Geological Observatory), an original board member, resigned after the first meeting. Broecker told Eos that combining the science and policy boards resulted in a new board whose mission is too broad. A new board member will be appointed in Broecker's place

  2. Assessment of the Water Levels and Currents at the Mississippi Bight During Hurricane Katrina.

    Science.gov (United States)

    Nwankwo, U. C.; Howden, S. D.; Dodd, D.; Wells, D. E.

    2017-12-01

    In an effort to extend the length of GPS baselines further offshore, the Hydrographic Science Research Center at the University of Southern Mississippi deployed a buoy which had a survey grade GPS receiver, an ADPC and a motion sensor unit in the Mississippi Bight in late 2004. The GPS data were initially processed using the Post Processed Kinematic technique with data from a nearby GPS base station on Horn Island. This processing technique discontinued when the storm (Hurricane Katrina) destroyed the base station in late August of 2005. However, since then a stand-alone positioning technique termed Precise Point Positioning (PPP) matured and allowed for the reprocessing of the buoy GPS data throughout Katrina. The processed GPS data were corrected for buoy angular motions using Tait Bryan transformation model. Tidal datums (Epoch 1983-2001) were transferred from the National Oceanic and Atmospheric Administration (NOAA) National Water Level at Waveland, Mississippi (Station ID 8747766) to the buoy using the Modified Range Ratio method. The maximum water level during the storm was found to be about 3.578m, relative to the transferred Mean Sea Level datum. The storm surge built over more than 24 hours, but fell back to normal levels in less than 3 hours. The maximum speed of the current with respect to the seafloor was recorded to be about 4knots towards the southeast as the storm surge moved back offshore.

  3. The Teles Pires volcanic province: A paleogeoproterozoic silicic-dominated large igneous province in southwest Amazon craton and tectonic implications

    International Nuclear Information System (INIS)

    Leite, Jayme Alfredo Dexheimer; Saes, Gerson Souza; Macambira, Moacir Jose Buenano

    2001-01-01

    Large Igneous Provinces (LIPs) are important features of the Earth history especially recognized during Paleo to Mezosoic times when they are related to the break up of supercontinents (Coffin and Eldhom, 1994). These provinces occur in several different tectonic settings such as volcanic passive margins, submarine ridges and continental and oceanic plateaux. Mafic-dominanted provinces are the most well known among the LIPs and the best examples are the Karoo, Kerguelem and Ontong-Java. LIPs including an important silicic component have been described in some basaltic provinces of southern Africa (Milner et al. 1992). More recently, silicic-dominated LIPs have been recognized in eastern Australia (Bryan et al., 2000), in southern South America (Pankhurst et al. 1998) and in Antartica Penninsula (Riley and Leat, 1999). The common characteristics of this kind of LIP include: 1) large volume of silicic rocks with dominance of ignimbrites, 2) active over 40 to 50 m.y.; and 3) spatially and temporally associated with plate break up. In this paper we present the main geologic and geochronologic characteristics of the Teles Pires volcanic province from southwest Amazon Craton, which allow its classification as a Paleoprotorozoic silicic-dominated LIP. Geologic implications of this suggestion includes the existence of a large cratonic plate as old as 1.81Ga for the Amazon Craton, therefore the proposed 1.85-1.55 Ga magmatic arc of Rio Negro-Juruena Province should be reviewed (au)

  4. Geological Society of London Issues Statement on Climate Change

    Science.gov (United States)

    Summerhayes, Colin

    2011-02-01

    On 1 November the Geological Society of London (GSL) published a statement (http://www.geolsoc.org.uk/gsl/site//GSL//lang/en/climatechange) about the geological evidence relating to past climates, atmospheric carbon levels, and their interrelationships. The online version also carries a list of recommendations for further reading. The GSL's Geoscientist magazine (http://www.geolsoc.org.uk/gsl/site/GSL/lang/en/page8578.html) reported Bryan Lovell, GSL president, as saying, “Climate change is a defining issue of our time, whose full understanding needs geology's long perspective. Earth scientists can read…the geological record of changes in climate that occurred long before we were around to light so much as a camp fire, let alone burn coal, gas and oil. A dramatic global warming event 55 million years ago gives us a particularly clear indication of what happens when there is a sudden release of 1500 billion tonnes of carbon into Earth's atmosphere. It gets hot, the seas become more acid, and there is widespread extinction of life. We are a third of the way to repeating that ancient natural input of carbon through our own agency. The message from the rocks is that it would be a good idea to stop pulling that carbon trigger.”

  5. The invasive microalga Chrysophaeum taylorii: Interactive stressors regulate cell density and mucilage production.

    Science.gov (United States)

    Caronni, Sarah; Calabretti, Chiara; Cavagna, Gianluca; Ceccherelli, Giulia; Delaria, Maria Anna; Macri, Giovanni; Navone, Augusto; Panzalis, Pieraugusto

    2017-08-01

    The benthic mucilage producing microalga Chrysophaeum taylorii Lewis and Bryan (Pelagophyceae) has recently received attention for its rapid spread in the Mediterranean Sea, where its blooms have remarkable detrimental effects. So far no information on C. taylorii response to multiple stressors, especially in terms of mucilage hyperproduction, is available in the literature yet, and a manipulative field experiment in this topic was designed in Tavolara Punta Coda Cavallo Marine Protected Area. The aim of the study was to test the effects of nutrient enrichment (addition of nutrients), mechanical disturbance (partial and total benthic organisms removal) and hydrodynamics (increased water turbulence) on C. taylorii cell density and mucilage abundance. To the purpose, the three above mentioned stressors were simulated and the three treatments were assigned to 20 × 20 cm plots following a full-factorial design (n = 3). Interactive effects of the three stressors affected significantly both benthic C. taylorii cell density and mucilage cover although differently. Mechanical disturbance and high hydrodynamics produced consistent effects on cell density and mucilage production (i.e. the former factor enhancing and the latter decreasing). Nutrient enrichment on the contrary led to contrasting effects, promoting cell abundance and inhibiting mucilage production. Therefore, important mucilage blooms are expected in oligotrophic sheltered coastal locations where barren areas are present. Copyright © 2017 Elsevier Ltd. All rights reserved.

  6. Cosmological Simulations with Molecular Astrochemistry: Water in the Early Universe

    Science.gov (United States)

    Wiggins, Brandon K.; Smidt, Joseph

    2018-01-01

    Water is required for the rise of life as we know it throughout the universe, but its origin and the circumstances of its first appearance remain a mystery. The abundance of deuterated water in solar system bodies cannot be explained if all the water in the solar system were created in the protoplanetary disk (Cleeves et al. 2014), suggesting that as much of half of Earth’s water predates the Sun. Water has been observed as early as one sixth the current universe’s age in MG J0414+0534 (Imprellizzeri et al. 2008). It was recently shown that water could, in principle, appear in hot halos barely enriched with heavy elements such as oxygen and carbon (Bialy et al. 2015). So far, no self-consistent calculation of cosmology physics carried out in line with a large chemical reaction network has been carried out to study the first sites of water formation in the universe. We present initial results the first such series of cosmological calculations with a 26 species low metallicity molecular chemical reaction network with Enzo (Bryan et al. 2014) to understand the role of hydrodynamics and radiative feedback on molecule formation in the early universe and to shed light on the cosmological history of this life-giving substance.

  7. Direct and indirect effects of paliperidone extended-release tablets on negative symptoms of schizophrenia

    Directory of Open Access Journals (Sweden)

    Ibrahim Turkoz

    2008-08-01

    Full Text Available Ibrahim Turkoz, Cynthia A Bossie, Bryan Dirks, Carla M CanusoOrtho-McNeil Janssen Scientific Affairs, LLC, Titusville, NJ, USAAbstract: Direct and indirect effects of the new psychotropic paliperidone extended-release (paliperidone ER tablets on negative symptom improvement in schizophrenia were investigated using path analysis. A post hoc analysis of pooled data from three 6-week, double-blind, placebo-controlled studies of paliperidone ER in patients experiencing acute exacerbation was conducted. Regression analysis explored relationships between baseline/study characteristics and negative symptoms. Change in Positive and Negative Syndrome Scale (PANSS negative factor score at endpoint was the dependent variable; explanatory variables included demographic and clinical characteristics. Path analysis determined direct and indirect effects of treatment on negative symptom change. Indirect mediators of negative symptom change in the model included changes in positive symptoms, anxiety/depression symptoms and movement disorders. Path analysis indicated that up to 33% of negative symptom improvement was a direct treatment effect. Indirect effects on negative symptoms were mediated through changes in positive symptoms (51% and anxiety/depression symptoms (18%, whereas changes in movement disorders had a 2.1% inverse effect. Path analysis indicated that paliperidone ER has a direct effect on negative symptoms. Negative symptom improvement also was indirectly mediated via changes in positive and depressive symptoms.Keywords: antipsychotic, paliperidone ER, path analysis, psychotropic, schizophrenia

  8. Clark T. Sawin historical vignette: what do criminology, Harry Houdini, and King George V have in common with postpartum thyroid dysfunction?

    Science.gov (United States)

    Smallridge, Robert C

    2014-12-01

    The history of postpartum thyroid dysfunction (PPTD) dates back almost two millennia, when Soranus of Ephesus, who practiced obstetrics and neonatology, observed swelling in the necks (presumably goiters) of women after pregnancy. The next reference to PPTD appeared in artwork more than 1000 years later, with many portraits illustrating women with goiter while holding infants. In the early to mid-19th century, Caleb Hillier Parry and Armand Trousseau described postpartum hyperthyroidism, while in the late 1800s, Sir Horatio Bryan Donkin reported the first patient with postpartum hypothyroidism. The modern era of PPTD began with the description in the late 1940s by H.E.W. Roberton of women after delivery reporting hypothyroid symptoms and responding to thyroid extract. The immunologic influence on PPTD was recognized initially by Parker and Beierwaltes in the early 1960s, and the clinical variability and natural history were carefully documented by numerous investigators in the 1970s-1980s. The past two decades have seen further refinements in understanding the prevalence, etiology, and treatment of PPTD. Yet to be determined is the role of screening as a cost-effective measure.

  9. Updated Collisional Ionization Equilibrium Calculated for Optically Thin Plasmas

    Science.gov (United States)

    Savin, Daniel Wolf; Bryans, P.; Badnell, N. R.; Gorczyca, T. W.; Laming, J. M.; Mitthumsiri, W.

    2010-03-01

    Reliably interpreting spectra from electron-ionized cosmic plasmas requires accurate ionization balance calculations for the plasma in question. However, much of the atomic data needed for these calculations have not been generated using modern theoretical methods and their reliability are often highly suspect. We have carried out state-of-the-art calculations of dielectronic recombination (DR) rate coefficients for the hydrogenic through Na-like ions of all elements from He to Zn as well as for Al-like to Ar-like ions of Fe. We have also carried out state-of-the-art radiative recombination (RR) rate coefficient calculations for the bare through Na-like ions of all elements from H to Zn. Using our data and the recommended electron impact ionization data of Dere (2007), we present improved collisional ionization equilibrium calculations (Bryans et al. 2006, 2009). We compare our calculated fractional ionic abundances using these data with those presented by Mazzotta et al. (1998) for all elements from H to Ni. This work is supported in part by the NASA APRA and SHP SR&T programs.

  10. The evolution of X-ray clusters in a cold plus hot dark matter universe

    Science.gov (United States)

    Bryan, Greg L.; Klypin, Anatoly; Loken, Chris; Norman, Michael L.; Burns, Jack O.

    1994-01-01

    We present the first self-consistently computed results on the evolution of X-ray properties of galaxy clusters in a cold + hot dark matter (CHDM) model. We have performed a hydrodynamic plus N-body simulation for the COBE-compatible CHDM model with standard mass components: Omega(sub hot) = 0.3, Omega (sub cold) = 0.6 and Omega(sub baryon) = 0.1 (h = 0.5). In contrast with the CDM model, which fails to reproduce the observed temperature distribution function dN/dT (Bryan et al. 1994b), the CHDM model fits the observational dN/dT quite well. Our results on X-ray luminosity are less firm but even more intriguing. We find that the resulting X-ray luminosity functions at redshifts z = 0.0, 0.2, 0.4, 0.7 are well fit by observations, where they overlap. The fact that both temperatures and luminosities provide a reasonable fit to the available observational data indicates that, unless we are missing some essential physics, there is neither room nor need for a large fraction of gas in rich clusters: 10% (or less) in baryons is sufficient to explain their X-ray properties. We also see a tight correlation between X-ray luminosity and gas temperature.

  11. Assessment of the Available Drawdowns for Oil Storage Caverns at the West Hackberry SPR Site

    Energy Technology Data Exchange (ETDEWEB)

    Sobolik, Steven R. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Geotechnology and Engineering Dept.

    2016-03-01

    The Department of Energy, in response to requests from the U.S. Congress, wishes to maintain an up-to-date table documenting the number of available full drawdowns of each of the caverns owned by the Strategic Petroleum Reserve. This information is important for assessing the SPR’s ability to deliver oil to domestic oil companies expeditiously if national or world events dictate a rapid sale and deployment of the oil reserves. What factors go into assessing available drawdowns? The evaluation of drawdown risks require the consideration of several factors regarding cavern and wellbore integrity and stability, including stress states caused by cavern geometry and operations, salt damage caused by dilatant and tensile stresses, the effect on enhanced creep on wellbore integrity, the sympathetic stress effect of operations on neighboring caverns. Based on the work over the past several months, a consensus has been built regarding the assessment of drawdown capabilities and risks for the SPR caverns. This paper draws upon the recently West Hackberry model upgrade and analyses to reevaluate and update the available drawdowns for each of those caverns. Similar papers for the Bryan Mound, Big Hill, and Bayou Choctaw papers will be developed as the upgrades to those analyses are completed. The rationale and documentation of the methodology is described in the remainder of this report, as are the updated estimates of available drawdowns for the West Hackberry caverns.

  12. STS-61B Astronaut Ross Works on Assembly Concept for Construction of Erectable Space Structure

    Science.gov (United States)

    1985-01-01

    The crew assigned to the STS-61B mission included Bryan D. O'Conner, pilot; Brewster H. Shaw, commander; Charles D. Walker, payload specialist; mission specialists Jerry L. Ross, Mary L. Cleave, and Sherwood C. Spring; and Rodolpho Neri Vela, payload specialist. Launched aboard the Space Shuttle Atlantis November 28, 1985 at 7:29:00 pm (EST), the STS-61B mission's primary payload included three communications satellites: MORELOS-B (Mexico); AUSSAT-2 (Australia); and SATCOM KU-2 (RCA Americom). Two experiments were conducted to test assembling erectable structures in space: EASE (Experimental Assembly of Structures in Extravehicular Activity), and ACCESS (Assembly Concept for Construction of Erectable Space Structure). In a joint venture between NASA/Langley Research Center in Hampton, Virginia and the Marshall Space Flight Center (MSFC), EASE and ACCESS were developed and demonstrated at MSFC's Neutral Buoyancy Simulator (NBS). In this STS-61B onboard photo astronaut Ross, located on the Manipulator Foot Restraint (MFR) over the cargo bay, erects ACCESS. The primary objective of this experiment was to test the structural assembly concepts for suitability as the framework for larger space structures and to identify ways to improve the productivity of space construction.

  13. Ross Works on the Assembly Concept for Construction of Erectable Space Structure (ACCESS) During

    Science.gov (United States)

    1985-01-01

    The crew assigned to the STS-61B mission included Bryan D. O'Conner, pilot; Brewster H. Shaw, commander; Charles D. Walker, payload specialist; mission specialists Jerry L. Ross, Mary L. Cleave, and Sherwood C. Spring; and Rodolpho Neri Vela, payload specialist. Launched aboard the Space Shuttle Atlantis November 28, 1985 at 7:29:00 pm (EST), the STS-61B mission's primary payload included three communications satellites: MORELOS-B (Mexico); AUSSAT-2 (Australia); and SATCOM KU-2 (RCA Americom). Two experiments were conducted to test assembling erectable structures in space: EASE (Experimental Assembly of Structures in Extravehicular Activity), and ACCESS (Assembly Concept for Construction of Erectable Space Structure). In a joint venture between NASA/Langley Research Center in Hampton, Virginia, and the Marshall Space Flight Center (MSFC), EASE and ACCESS were developed and demonstrated at MSFC's Neutral Buoyancy Simulator (NBS). In this STS-61B onboard photo, astronaut Ross works on ACCESS high above the orbiter. The primary objective of these experiments was to test the structural assembly concepts for suitability as the framework for larger space structures and to identify ways to improve the productivity of space construction.

  14. STS-61B Astronauts Ross and Spring Work on Experimental Assembly of Structures in Extravehicular

    Science.gov (United States)

    1985-01-01

    The crew assigned to the STS-61B mission included Bryan D. O'Conner, pilot; Brewster H. Shaw, commander; Charles D. Walker, payload specialist; mission specialists Jerry L. Ross, Mary L. Cleave, and Sherwood C. Spring; and Rodolpho Neri Vela, payload specialist. Launched aboard the Space Shuttle Atlantis November 28, 1985 at 7:29:00 pm (EST), the STS-61B mission's primary payload included three communications satellites: MORELOS-B (Mexico); AUSSAT-2 (Australia); and SATCOM KU-2 (RCA Americom). Two experiments were conducted to test assembling erectable structures in space: EASE (Experimental Assembly of Structures in Extravehicular Activity), and ACCESS (Assembly Concept for Construction of Erectable Space Structure). In a joint venture between NASA/Langley Research Center in Hampton, Virginia, and the Marshall Space Flight Center (MSFC), EASE and ACCESS were developed and demonstrated at MSFC's Neutral Buoyancy Simulator (NBS). This STS-61B onboard photo depicts astronauts Ross and Spring working on EASE. The primary objective of these experiments was to test the structural assembly concepts for suitability as the framework for larger space structures and to identify ways to improve the productivity of space construction.

  15. Cocoa Beach students take part in nationwide project for STARSHINE spacecraft

    Science.gov (United States)

    1999-01-01

    Students Scott Kerley and Bryan Geer demonstrate how they polished mirrors for STARSHINE, a student spacecraft built by the Naval Research Laboratory in Washington, D.C. The two seventh graders at McNair Magnet School, Cocoa Beach, Fla., are among dozens of students teams of elementary, middle and high school students who have polished nearly nine hundred of the one-inch mirrors and returned them to Utah for coating with a protective transparent layer of Silicon Dioxide at Hill Air Force Base. The mirrors are being mounted on the surface of the spacecraft. STARSHINE is being deployed into a highly inclined low-earth orbit from a Hitchhiker canister on mission STS-96, targeted to launch May 20. After deployment from the Shuttle in May, the spacecraft will reflect flashes of sunlight to observers on the earth during the mission. This twinkling satellite will be naked- eye visible against the star background for about six months during recurring morning and evening twilight periods to student observers around the world.

  16. Strategic Petroleum Reserve site environmental report for calendar year 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-11-01

    The purpose of this Site Environmental Report (SER) is to characterize site environmental management performance, confirm compliance with environmental standards and requirements, and highlight significant programs and efforts for the US Department of Energy (DOE) Strategic Petroleum Reserve (SPR). The SER, provided annually in accordance with DOE order 5400.1, serves the public by summarizing monitoring data collected to assess how the SPR impacts the environment. The SER provides a balanced synopsis of non-radiological monitoring and regulatory compliance data and affirms that the SPR has been operating within acceptable regulatory limits. Included in this report is a describe of each site`s environment, an overview of the SPR environmental program, and a recapitulation of special environmental activities and events associated with each SPR site during 1997. Two of these highlights include decommissioning of the Weeks Island site, involving the disposition of 11.6 million m{sup 3} (73 million barrels) of crude oil inventory, as well as the degasification of over 12.6 million m{sup 3} (79.3 million barrels) of crude oil inventory at the Big Hill and Bryan Mound facilities.

  17. Bag-model analyses of proton-antiproton scattering and atomic bound states

    International Nuclear Information System (INIS)

    Alberg, M.A.; Freedman, R.A.; Henley, E.M.; Hwang, W.P.; Seckel, D.; Wilets, L.

    1983-01-01

    We study proton-antiproton (pp-bar ) scattering using the static real potential of Bryan and Phillips outside a cutoff radius rsub0 and two different shapes for the imaginary potential inside a radius R*. These forms, motivated by bag models, are a one-gluon-annihilation potential and a simple geometric-overlap form. In both cases there are three adjustable parameters: the effective bag radius R*, the effective strong coupling constant αsubssup*, and rsub0. There is also a choice for the form of the real potential inside the cutoff radius rsub0. Analysis of the pp-bar scattering data in the laboratory-momentum region 0.4--0.7 GeV/c yields an effective nucleon bag radius R* in the range 0.6--1.1 fm, with the best fit obtained for R* = 0.86 fm. Arguments are presented that the deduced value of R* is likely to be an upper bound on the isolated nucleon bag radius. The present results are consistent with the range of bag radii in current bag models. We have also used the resultant optical potential to calculate the shifts and widths of the sup3Ssub1 and sup1Ssub0 atomic bound states of the pp-bar system. For both states we find upward (repulsive) shifts and widths of about 1 keV. We find no evidence for narrow, strongly bound pp-bar states in our potential model

  18. ACCU MEETING

    CERN Multimedia

    2000-01-01

    DRAFT Agenda for the meeting to be held on Wednesday 13 September 2000 At 10 a.m. in the 6th floor Conference Room, Main Building 1. Chairman's remarks 2. Adoption of the agenda 3. News from the CERN Management 4. Minutes of the previous meeting 5. Matters arising 6. Report from the Scientific Information Policy Board 7. Report from ETT Division: The Press Office 8. Update on Computing Issues 9. Users' Office News 10. Any Other Business 11. Agenda for the next meeting Anyone wishing to raise any points under item 10 is invited to send them to the Secretary in writing via the CERN Users' Office or by e-mail to Bryan Pattison (Secretary). ACCU is the forum for discussion between the CERN Management and the representatives of CERN Users to review the practical means taken by CERN for the work of Users of the Laboratory. The User Representatives to ACCU are (CERN internal telephone numbers in brackets) : Austria G. Neuhofer (74094) Belgium G. Wilquet (74664) Bulgaria R. Tzenov (77958) Czech Republic P. Z vada (75...

  19. ACCU MEETING

    CERN Multimedia

    Bryan Pattison

    2000-01-01

    DRAFT Agenda for the meeting to be held on Wednesday 13 September 2000 At 10 a.m. in the 6th floor Conference Room, Main Building1. Chairman's remarks2. Adoption of the agenda3. News from the CERN Management4. Minutes of the previous meeting5. Matters arising6. Report from the Scientific Information Policy Board7. Report from ETT Division: The Press Office8. Update on Computing Issues9. Users' Office News10. Any Other Business11. Agenda for the next meetingAnyone wishing to raise any points under item 10 is invited to send them to the Secretary in writing via the CERN Users' Office or by e-mail toBryan Pattison(Secretary).ACCU is the forum for discussion between the CERN Management and the representatives of CERN Users to review the practical means taken by CERN for the work of Users of the Laboratory. The User Representatives to ACCU are (CERN internal telephone numbers in brackets) :Austria G. Neuhofer (74094)Belgium G. Wilquet (74664) Bulgaria R. Tzenov (77958)Czech Republic P. Závada (75877)Den...

  20. Design of the PROCON trial: a prospective, randomized multi – center study comparing cervical anterior discectomy without fusion, with fusion or with arthroplasty

    Directory of Open Access Journals (Sweden)

    Grotenhuis J André

    2006-11-01

    Full Text Available Abstract Background PROCON was designed to assess the clinical outcome, development of adjacent disc disease and costs of cervical anterior discectomy without fusion, with fusion using a stand alone cage and implantation of a Bryan's disc prosthesis. Description of rationale and design of PROCON trial and discussion of its strengths and limitations. Methods/Design Since proof justifying the use of implants or arthroplasty after cervical anterior discectomy is lacking, PROCON was designed. PROCON is a multicenter, randomized controlled trial comparing cervical anterior discectomy without fusion, with fusion with a stand alone cage or with implantation of a disc. The study population will be enrolled from patients with a single level cervical disc disease without myelopathic signs. Each treatment arm will need 90 patients. The patients will be followed for a minimum of five years, with visits scheduled at 6 weeks, 3 months, 12 months, and then yearly. At one year postoperatively, clinical outcome and self reported outcomes will be evaluated. At five years, the development of adjacent disc disease will be investigated. Discussion The results of this study will contribute to the discussion whether additional fusion or arthroplasty is needed and cost effective. Trial registration Current Controlled Trials ISRCTN41681847

  1. Monitoring the International Monetary System: Its Development in the West, and Future in the East

    Directory of Open Access Journals (Sweden)

    Todd J. Barry

    2016-06-01

    Full Text Available The “gold standard” is frequently mentioned in text books, but few without an economics background can fully understand it. This paper thus begins in 1896, when U.S. Presidential candidate William Jennings Bryan declared, “You shall not crucify mankind on a cross of gold.” Since going back to the middle ages, the world has had numerous monetary systems, which are here explained in comprehensible terms. A modern reoccurring idea is to return to some form of the gold standard, while some argue for switching to the Chinese yuan or another international reserve currency, which the International Monetary Fund (IMF will adopt in their Special Drawing Rights starting in October, 2016. This paper is normative in that it comments on the current international structure, but uses economic principles to support its argument in favor of an internationally strong dollar. It thus traces the history of a topically contentious subject, with a basic regression indicating important predictive factors for the future. It offers that a new gold standard would not be in the world’s interest, interfering with monetary policy, while emerging market countries would be best to import more and financially deepen, which the regression shows was why the Chinese yuan was adopted by the IMF, then looking ahead to other parts of Asia and towards bitcoins.

  2. Eleutherodactylus frog introductions to Hawaii

    Science.gov (United States)

    Kraus, Fred; Campbell, Earl W.; Allison, Allen; Pratt, Thane K.

    1999-01-01

    As an oceanic archipelago isolated from continental source areas, Hawaii lacks native terrestrial reptiles and amphibians, Polynesians apparently introduced seven gecko and skink species after discovering the islands approximately 1500 years ago, and another 15 reptiles and five frogs have been introduced in the last century and a half (McKeown 1996). The Polynesian introductions are probably inadvertent because the species involved are known stowaway dispersers (Gibbons 1985; Dye and Steadman 1990), In contrast, most of the herpetological introductions since European contact with Hawaii have been intentional. Several frog species were released for biocontrol of insects (e.g., Dendrobates auratus, Bufo marinus, Rana rugosa, Bryan 1932; Oliver and Shaw 1953), and most of the remaining species are released or escaped pets (e.g., Phelsuma spp., Chamaeleo jacksonii, Iguana iguana, McKeown 1996), Government-approved releases have not occurred for many years, but the rate of establishment of new species has increased in the past few decades because of the importation and subsequent release of pets.

  3. Lobar atrophy without Pick bodies.

    Science.gov (United States)

    Hulette, C M; Crain, B J

    1992-01-01

    Four patients from the Kathleen Price Bryan Brain Bank with clinical Pick's syndrome are presented. Thorough neurological evaluation revealed no evidence of a movement disorder. The brains showed marked knife-blade type atrophy of the frontal and temporal lobes with relative sparing of the superior temporal gyrus and parietal and occipital lobes. There was marked caudate atrophy in all four. Histologically there was severe neuronal loss and gemistocytic astrocytosis in the involved areas with marked myelin pallor in the deep white matter and subcortical gliosis. There was sometimes marked spongiform change in cortical layer 2. There was severe neuronal loss and gliosis of the caudate nucleus. The gross and microscopic features were characteristic of Pick's disease except that careful search failed to uncover either Pick's bodies or Pick's cells. Review of the literature revealed that fronto-temporal cortical and caudate atrophy with clinical features of Pick's disease has received many different names including Pick's disease type C, Pick's disease type II, progressive subcortical gliosis, presenile glial dystrophy, long duration Creutzfeldt-Jakob disease, frontal lobe degeneration, dysphasic dementia, and dementia lacking distinctive histologic features. Nevertheless, the morphologic findings in the present cases so closely resemble Pick's disease that they may well represent endstage Pick's disease. In our experience, such cases account for a significant proportion of non-Alzheimer disease dementia.

  4. Progress report. [Research in theoretical nuclear and subnuclear physics

    International Nuclear Information System (INIS)

    1997-01-01

    Sergei Ananyan has completed one nice piece of nuclear physics on 'Electroweak Processes Involving (0 + 0) Excitations in Nuclei' and has written this work up for publication. He is well into his main thesis problem on weak axial vector exchange currents and already has some very interesting new results. Bryan Barmore is now finishing numerical calculations on the problem of radiating meson fields in relativistic heavy ion collisions. Gary Prezeau has just started on the problem of chiral QHD with vector mesons. Gary should finish his Ph.D. in 1998. A PC has been purchased for the group through CEBAF and they are now tied into the CEBAF computer system., They have organized a Nuclear Theory Study Group in the Department and last year they worked through the books on 'Computational Nuclear Physics.' Next year they will run a series on effective field theories and chiral perturbation theory. Tod Bachman just completed a senior thesis on relativistic Hartree calculations of the newly-found doubly magic nuclei 100 Sn and 132 Sn. The book on 'Theoretical Nuclear and Subnuclear Physics' has now been published by Oxford Press. Also included here is the proposal for renewal of the contract

  5. Medium-energy theory group. Progress report, July 1, 1976--June 30, 1977

    International Nuclear Information System (INIS)

    Bryan, R.A.

    1977-05-01

    Research carried out during the contract period by R. A. Bryan, principal investigator, and associates R. B. Clark and B. J. VerWest is reported. Most of the work has centered on the nucleon-nucleon interaction at low to intermediate energies and has ranged from purely theoretical studies, such as the behavior of two-pion-exchange Feynman amplitudes at far off-shell initial and final nucleon momenta, to the more practical work of phase-shift analyzing nucleon-nucleon data. One has also investigated the possibility that the NN interaction is not invariant under time-reversal and have provided predictions for some relevant experimental observables for the case where such time-irreversibility is due to short-range processes. Finally, research on topics which fall in the domain of elementary-particle physics but which are felt can lend guidance in trying to determine the NN force at very short distances is completed; this is the current frontier in nucleon-nucleon research. A list of publications is included

  6. WEST CORNWALL IN THE LANDSCAPE ABSTRACTION OF THE ST IVES SCHOOL

    Directory of Open Access Journals (Sweden)

    Дина Николаевна Алёшина

    2014-05-01

    Full Text Available The article is devoted to the British abstract painting of the St Ives School, which is world-famous but uninvestigated in Russia. The St Ives School taken its name from a little fishing town was formed in the South-West of England in the 1940 – 1950s. An object for study is a peculiarity of the abstract painting of the St. Ives School, its concreteness. For the first time the article researches a perception of a special place, where a centre of the abstract painting appeared, that was distinctive for British artists after the World War II. An image of West Cornwall is investigated in abstract landscapes of Bryan Wynter (1915 – 1975, Peter Lanyon (1918 – 1964, Roger Hilton (1911 – 1975 and Terry Frost (1915 – 2003. Methods of research include a detailed figuratively-stylistic and a comparative analysis of works and collation with its natural sources – landscapes of Cornwall. The article first studies images of Zennor and Newlyn, two famous places on the Atlantic coast, in the British abstract painting of the St Ives School.DOI: http://dx.doi.org/10.12731/2218-7405-2014-2-15

  7. Strategic Petroleum Reserve site environmental report for calendar year 1997

    International Nuclear Information System (INIS)

    1998-01-01

    The purpose of this Site Environmental Report (SER) is to characterize site environmental management performance, confirm compliance with environmental standards and requirements, and highlight significant programs and efforts for the US Department of Energy (DOE) Strategic Petroleum Reserve (SPR). The SER, provided annually in accordance with DOE order 5400.1, serves the public by summarizing monitoring data collected to assess how the SPR impacts the environment. The SER provides a balanced synopsis of non-radiological monitoring and regulatory compliance data and affirms that the SPR has been operating within acceptable regulatory limits. Included in this report is a describe of each site's environment, an overview of the SPR environmental program, and a recapitulation of special environmental activities and events associated with each SPR site during 1997. Two of these highlights include decommissioning of the Weeks Island site, involving the disposition of 11.6 million m 3 (73 million barrels) of crude oil inventory, as well as the degasification of over 12.6 million m 3 (79.3 million barrels) of crude oil inventory at the Big Hill and Bryan Mound facilities

  8. It’s who I am and what we eat: Mothers’ food-related identities in family food choice

    Science.gov (United States)

    Johnson, Cassandra M.; Sharkey, Joseph R.; Dean, Wesley R.; McIntosh, W. Alex; Kubena, Karen S.

    2011-01-01

    This study aimed to understand mothers’ everyday food choices using one type of visual method-participant-driven photo-elicitation (PDPE). The sample consisted of 12 low/moderate income mothers (26–53 years) living in Bryan/College Station, Texas. Each mother completed a photography activity, where she created photographs of her food experience, and an in-depth interview using the mother’s photographs. Interview transcripts were analyzed using a grounded theory approach and coded using qualitative data analysis software ATLAS.ti. Mothers emphasized their identities related to food and eating as they described food-related decisions and activities. These identities influenced a mother’s food choices for herself and those she made for her children. Analysis revealed that mothers with a more defined health identity made healthier choices for themselves and similar food choices for their children. In addition, they exhibited behaviors that positively influenced their children’s food choices. Mothers who struggled to see themselves as healthy indulged with more junk food and indicated feelings of anxiety and guilt; these mothers’ food choices were more disconnected from their children’s. These findings underscore the importance of understanding how identities related to food and eating can influence food choices. Encouraging mothers to develop and maintain health identities may be one way to improve food and eating habits in families. PMID:21600253

  9. Astronaut Ross Approaches Assembly Concept for Construction of Erectable Space Structure (ACCESS)

    Science.gov (United States)

    1999-01-01

    The crew assigned to the STS-61B mission included Bryan D. O'Conner, pilot; Brewster H. Shaw, commander; Charles D. Walker, payload specialist; mission specialists Jerry L. Ross, Mary L. Cleave, and Sherwood C. Spring; and Rodolpho Neri Vela, payload specialist. Launched aboard the Space Shuttle Atlantis November 28, 1985 at 7:29:00 pm (EST), the STS-61B mission's primary payload included three communications satellites: MORELOS-B (Mexico); AUSSAT-2 (Australia); and SATCOM KU-2 (RCA Americom). Two experiments were conducted to test assembling erectable structures in space: EASE (Experimental Assembly of Structures in Extravehicular Activity), and ACCESS (Assembly Concept for Construction of Erectable Space Structure). In a joint venture between NASA/Langley Research Center in Hampton, Virginia, and the Marshall Space Flight Center (MSFC), EASE and ACCESS were developed and demonstrated at MSFC's Neutral Buoyancy Simulator (NBS). In this STS-61B onboard photo, astronaut Ross, perched on the Manipulator Foot Restraint (MFR) approaches the erected ACCESS. The primary objective of these experiments was to test the structural assembly concepts for suitability as the framework for larger space structures and to identify ways to improve the productivity of space construction.

  10. New approach to isometric transformations in oblique local coordinate systems of reference

    Science.gov (United States)

    Stępień, Grzegorz; Zalas, Ewa; Ziębka, Tomasz

    2017-12-01

    The research article describes a method of isometric transformation and determining an exterior orientation of a measurement instrument. The method is based on a designation of a "virtual" translation of two relative oblique orthogonal systems to a common, known in the both systems, point. The relative angle orientation of the systems does not change as each of the systems is moved along its axis. The next step is the designation of the three rotation angles (e.g. Tait-Bryan or Euler angles), transformation of the system convoluted at the calculated angles and moving the system to the initial position where the primary coordinate system was. This way eliminates movements of the systems from the calculations and makes it possible to calculate angles of mutual rotation angles of two orthogonal systems primarily involved in the movement. The research article covers laboratory calculations for simulated data. The accuracy of the results is 10-6 m (10-3 regarding the accuracy of the input data). This confi rmed the correctness of the assumed calculation method. In the following step the method was verifi ed under fi eld conditions, where the accuracy of the method raised to 0.003 m. The proposed method enabled to make the measurements with the oblique and uncentered instrument, e.g. total station instrument set over an unknown point. This is the reason why the method was named by the authors as Total Free Station - TFS. The method may be also used for isometric transformations for photogrammetric purposes.

  11. Morphological aspects of tympanic bulla after ventral osteotomy in cats Aspectos morfológicos da bulla tympanica de gatos após osteotomia ventral

    Directory of Open Access Journals (Sweden)

    Adelina Maria da Silva

    2009-06-01

    Full Text Available PURPOSE: To evaluate tympanic bulla healing after experimental ventral osteotomy in cats. METHODS: Twenty adult cats were submitted to unilateral ventral bulla osteotomy and divided into two groups: cats of A1 group (n=10 were euthanized at 8 weeks and cats of A2 group (n=10, at 16 weeks postoperative. RESULTS: Signs of Horner's syndrome or damage to the inner ear were not found. Open-mouth radiographs taken in the immediate postoperative showed interruption in the contour of the larger compartment of the operated bulla. The result of Mcnemar'test was significant in A2 group (*p=0.0156. Macroscopic exams revealed that the operated bullae were similar to the normal ones, with preservation of the tympanic cavity. Connective tissue at the osteotomy site of the larger compartment was significantly found in the operated bullae in both groups (McNemar test: A1 p=0.0020*; A2 p=0.0078*. Histomorphometric analyses showed that the connective tissue length at the osteotomy site was shorter in A2 group than in the A1 group (Mann-Whitney test: p=0.0021*. CONCLUSIONS: Experimental ventral osteotomy did not alter significantly the tympanic bulla conformation and complete regeneration of tympanic bulla frequently did not occur before 16 weeks of postoperative period.OBJETIVO: Avaliar a morfologia da bulla tympanica de gatos após osteotomia ventral unilateral. MÉTODOS: Foram utilizados 20 gatos distribuídos em dois grupos de 10 animais cada, de acordo com o período de observação: A1 (8 semanas e A2 (16 semanas. RESULTADOS: Nenhum animal apresentou síndrome de Horner ou lesão do ouvido interno. Nas radiografias em projeção com a boca aberta realizadas no pós-operatório imediato observou-se a interrupção do compartimento maior da bulla tympanica operada, resultado significante no grupo A2 (McNemar, p=0,0156*. Os exames macroscópicos revelaram que a bulla tympanica operada apresentava conformação semelhante a da bulla tympanica normal, com preserva

  12. Dosimetric Factors and Toxicity in Highly Conformal Thoracic Reirradiation

    Energy Technology Data Exchange (ETDEWEB)

    Binkley, Michael S.; Hiniker, Susan M.; Chaudhuri, Aadel [Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California (United States); Maxim, Peter G. [Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California (United States); Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California (United States); Diehn, Maximilian [Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California (United States); Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California (United States); Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California (United States); Loo, Billy W., E-mail: BWLoo@Stanford.edu [Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California (United States); Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California (United States); Shultz, David Benjamin, E-mail: David.Shultz@rmp.uhn.on.ca [Department of Radiation Oncology, Princess Margaret Cancer Centre, Toronto, Ontario (Canada); Department of Radiation Oncology, University of Toronto, Toronto, Ontario (Canada)

    2016-03-15

    } range: 207.5-302.2 Gy), brachial plexopathy (n=1; D0.2 cm{sup 3} = 242.5 Gy), and Horner's syndrome (n=1; sympathetic trunk D0.2 cm{sup 3} = 130.8 Gy). No grade ≥4 toxicity was observed. Conclusions: Overlapping courses of reirradiation can be safely delivered with acceptable toxicity. Some toxicities occurred acutely at doses considered safe for a single course of therapy (esophagus). We observed rib fracture, brachial plexopathy, and Horner's syndrome for patients receiving high cumulative doses to corresponding critical structures.

  13. Optimising code generation with haggies

    Science.gov (United States)

    Reiter, T.

    2010-07-01

    This article describes haggies, a program for the generation of optimised programs for the efficient numerical evaluation of mathematical expressions. It uses a multivariate Horner-scheme and Common Subexpression Elimination to reduce the overall number of operations. The package can serve as a back-end for virtually any general purpose computer algebra program. Built-in type inference that allows to deal with non-standard data types in strongly typed languages and a very flexible, pattern-based output specification ensure that haggies can produce code for a large variety of programming languages. We currently use haggies as part of an automated package for the calculation of one-loop scattering amplitudes in quantum field theories. The examples in this articles, however, demonstrate that its use is not restricted to the field of high energy physics. Program summaryProgram title: haggies Catalogue identifier: AEGF_v1_0 Program summary: URL: http://cpc.cs.qub.ac.uk/summaries/AEGF_v1_0.html Program obtainable from: CPC Program Library, Queen's University, Belfast, N. Ireland Licensing provisions: GNU GPL v3 No. of lines in distributed program, including test data, etc.: 56 220 No. of bytes in distributed program, including test data, etc.: 579 010 Distribution format: tar.gz Programming language: Java, JavaCC Computer: Any system that runs the Java Virtual Machine Operating system: Any system that runs the Java Virtual Machine RAM: Determined by the size of the problem Classification: 4.14, 5, 6.2, 6.5, 11.1 Nature of problem: Generation of optimised programs for the evaluation of possibly large algebraic expressions Solution method: Java implementation Running time: Determined by the size of the problem

  14. Application of the error propagation theory in estimates of static formation temperatures in geothermal and petroleum boreholes

    International Nuclear Information System (INIS)

    Verma, Surendra P.; Andaverde, Jorge; Santoyo, E.

    2006-01-01

    We used the error propagation theory to calculate uncertainties in static formation temperature estimates in geothermal and petroleum wells from three widely used methods (line-source or Horner method; spherical and radial heat flow method; and cylindrical heat source method). Although these methods commonly use an ordinary least-squares linear regression model considered in this study, we also evaluated two variants of a weighted least-squares linear regression model for the actual relationship between the bottom-hole temperature and the corresponding time functions. Equations based on the error propagation theory were derived for estimating uncertainties in the time function of each analytical method. These uncertainties in conjunction with those on bottom-hole temperatures were used to estimate individual weighting factors required for applying the two variants of the weighted least-squares regression model. Standard deviations and 95% confidence limits of intercept were calculated for both types of linear regressions. Applications showed that static formation temperatures computed with the spherical and radial heat flow method were generally greater (at the 95% confidence level) than those from the other two methods under study. When typical measurement errors of 0.25 h in time and 5 deg. C in bottom-hole temperature were assumed for the weighted least-squares model, the uncertainties in the estimated static formation temperatures were greater than those for the ordinary least-squares model. However, if these errors were smaller (about 1% in time and 0.5% in temperature measurements), the weighted least-squares linear regression model would generally provide smaller uncertainties for the estimated temperatures than the ordinary least-squares linear regression model. Therefore, the weighted model would be statistically correct and more appropriate for such applications. We also suggest that at least 30 precise and accurate BHT and time measurements along with

  15. Clearly delineated lesion in a case of Wallenberg's syndrome by magnetic resonance imaging

    International Nuclear Information System (INIS)

    Okumiya, Noriya; Yamaguchi, Takenori; Miyashita, Takeshi; Kozuka, Takahiro

    1985-01-01

    Diagnosis of Wallenberg's syndrome has been made by typical neurological symptoms and signs which are compatible with those of lesion in the lateral aspect of medulla oblongata. Although X-ray CT is an extraordinary useful measure for detecting lesions in the central nervous system, brainstem lesion is difficult to be evaluated by it because of varieties of artifact. A recent advance in techniques of magnetic resonance imaging (MRI) made it possible to produce fairly good images of infratentorial structure without artifact. But, there are no reports on patients with Wallenberg's syndrome whose lesion was clearly delineated by MRI. A 44 year-old man with a history of hypertension was referred to our hospital because of vertigo, pain on the right side of the face, disturbance of swallowing and hiccup 22 days after onset. On admission, neurological examination revealed right Horner's sign, decreased gag reflex and cerebellar ataxia on the right side, and dissociated sensory impairment on the right side of the face and left extremities. Clinical diagnosis of Wallenberg's syndrome was made, but X-ray CT showed no definite lesion in the infratentorial structure. Cerebral angiography revealed occlusion of the right vertebral artery without reflux of contrast media from the left vertebral artery. Then, there was no visualization of the right posterior inferior cerebellar artery. MRI using Magnetom (0.35 Tesla of static magnetic field produced by superconducting magnet) clearly delineated low intensity area in the right lateral aspect of the medulla oblongata. This is the first case of Wallenberg's syndrome whose anatomical lesion was demonstrated by MRI. (author)

  16. Dichotic beats of mistuned consonances.

    Science.gov (United States)

    Feeney, M P

    1997-10-01

    The beats of mistuned consonances (BMCs) result from the presentation of two sinusoids at frequencies slightly mistuned from a ratio of small integers. Several studies have suggested that the source of dichotic BMCs is an interaction within a binaural critical band. In one case the mechanism has been explained as an aural harmonic of the low-frequency tone (f1) creating binaural beats with the high-frequency tone (f2). The other explanation involves a binaural cross correlation between the excitation pattern of f1 and the contralateral f2--occurring within the binaural critical band centered at f2. This study examined the detection of dichotic BMCs for the octave and fifth. In one experiment with the octave, narrow-band noise centered at f2 was presented to one ear along with f1. The other ear was presented with f2. The noise was used to prevent interactions in the binaural critical band centered at f2. Dichotic BMCs were still detected under these conditions, suggesting that binaural interaction within a critical band does not explain the effect. Localization effects were also observed under this masking condition for phase reversals of tuned dichotic octave stimuli. These findings suggest a new theory of dichotic BMCs as a between-channel phase effect. The modified weighted-image model of localization [Stern and Trahiotis, in Auditory Physiology and Perception, edited by Y. Cazals, L. Demany, and K. Horner (Pergamon, Oxford, 1992), pp. 547-554] was used to provide an explanation of the between-channel mechanism.

  17. A 22-year Northern Irish experience of carotid body tumours.

    Science.gov (United States)

    O'Neill, Stephen; O'Donnell, Mark; Harkin, Denis; Loughrey, Maurice; Lee, Bernard; Blair, Paul

    2011-09-01

    Carotid body tumours (CBTs) are rare vascular neoplasms originating in paraganglionic cells of the carotid bifurcation. The aim of this study was to review all patients diagnosed with CBTs in Northern Ireland. A retrospective review was performed of all patients who had CBTs treated at our institutions between 1987 and 2009. Patient demographics, clinical symptomatology, investigative modality, therapeutic intervention, pathological analysis and long-term outcomes were assessed. Twenty-nine patients were identified with 33 CBTs and three glomus intravagale tumours (GITs). Six patients had bilateral CBTs (21%), one of whom had a synchronous GIT. Twenty-six patients underwent a total of 30 operative procedures for the resection of 28 CBTs and 3 GITs. Conventional operative treatment included subadventitial tumour excision. A vascular shunt facilitated arterial reconstruction following the removal of seven (23%) tumours and on six of these occasions (19%) continuity was restored with an interposition vein graft. For access the external carotid artery was ligated during the removal of four tumours (13%). Two tumours were considered malignant. No peri-operative mortalities were recorded. Immediate complications included peri-operative stroke secondary to an occluded vein graft (n=1), requirement of tracheostomy (n=2), emergency haematoma drainage (n=2) and transient cranial nerve damage (n=8). Late complications included pseudoaneurysm of vein graft with subsequent stoke (n=1), permanent cranial nerve damage (n=9), Horner's syndrome (n=1) and an asymptomatic vein graft occlusion (n=1). One patient had tumour recurrence two years post-operatively and died due to pulmonary metastases. Two other patients died of unrelated causes. All other patients remain well with no evidence of tumour recurrence at mean followup of 1801 days (range 159-9208 days). Our long-term experience is comparable with other reported case series where surgical intervention conferred a long

  18. Heat flow in the rifted continental margin of the South China Sea near Taiwan and its tectonic implications

    Science.gov (United States)

    Liao, Wei-Zhi; Lin, Andrew T.; Liu, Char-Shine; Oung, Jung-Nan; Wang, Yunshuen

    2014-10-01

    Temperature measurements carried out on 9 hydrocarbon exploration boreholes together with Bottom Simulating Reflectors (BSRs) from reflection seismic images are used in this study to derive geothermal gradients and heat flows in the northern margin of the South China Sea near Taiwan. The method of Horner plot is applied to obtain true formation temperatures from measured borehole temperatures, which are disturbed by drilling processes. Sub-seafloor depths of BSRs are used to calculate sub-bottom temperatures using theoretical pressure/temperature phase boundary that marks the base of gas hydrate stability zone. Our results show that the geothermal gradients and heat flows in the study area range from 28 to 128 °C/km and 40 to 159 mW/m2, respectively. There is a marked difference in geothermal gradients and heat flow beneath the shelf and slope regions. It is cooler beneath the shelf with an average geothermal gradient of 34.5 °C/km, and 62.7 mW/m2 heat flow. The continental slope shows a higher average geothermal gradient of 56.4 °C/km, and 70.9 mW/m2 heat flow. Lower heat flow on the shelf is most likely caused by thicker sediments that have accumulated there compared to the sediment thickness beneath the slope. In addition, the continental crust is highly extended beneath the continental slope, yielding higher heat flow in this region. A half graben exists beneath the continental slope with a north-dipping graben-bounding fault. A high heat-flow anomaly coincides at the location of this graben-bounding fault at the Jiulong Ridge, indicating vigorous vertical fluid convection which may take place along this fault.

  19. Clinical presentation and management of congenital ptosis

    Directory of Open Access Journals (Sweden)

    Marenco M

    2017-02-01

    Full Text Available Marco Marenco,1,* Ilaria Macchi,2,* Iacopo Macchi,3 Emilio Galassi,4 Mina Massaro-Giordano,5 Alessandro Lambiase1 1Department of Sense Organs, University of Rome “Sapienza”, 2Department of Ophthalmology, Campus Bio-Medico University of Rome, Rome, 3Department of Ophthalmology, University of Catania, Catania, 4Ophthalmic Clinic, Department of Ophthalmology, University of L’Aquila, L’Aquila, Italy; 5Department of Ophthalmology, Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA *These authors contributed equally to this work Abstract: Congenital ptosis is a rare condition characterized by lower positioning of the upper eyelid that is present at birth and is a clinical condition that is persistent if not treated. It may be unilateral or bilateral and may be associated with other ocular disorders or systemic conditions, including Marcus Gunn, Horner, and Duane syndromes. It is a benign condition but causes functional, cosmetic, and psychological problems in children. However, not all patients need to undergo surgery, and usually only patients at risk of amblyopia need a prompt surgical correction, while in other cases, surgery can be postponed. The grade of ptosis, the eyelid function, and the amblyopic risk are the parameters that affect the ophthalmologist’s decision on timing of surgery and the surgical technique to be used. In fact, there are several types of surgical techniques to correct a congenital ptosis, although very often more than one is needed to obtain an acceptable result. This paper reviews the causes of congenital ptosis and associated diseases. Particular emphasis is given to surgical management and different procedures available to correct the upper eyelid anomaly and avoid permanent damage to visual function. Keywords: ptosis, extraocular muscle development, neurologic dysfunction, surgical approach

  20. The clinical study of the optimalization of surgical treatment and the traditional Chinese medicine intervention on palmar hyperhidrosis.

    Science.gov (United States)

    Yang, Yong; Yan, Zhikun; Fu, Xiaoqing; Dong, Liwen; Xu, Linhai; Wang, Jun; Cheng, Genmiao

    2014-11-01

    To analyze the efficacy of different surgical methods in treating palmar hyperhidrosis and the compensatory hyperhidrosis after surgery and to observe the efficacy of "Energy-boosting and Yin-nourishing anti-perspirant formula" on postsurgical hyperhidrosis patients. Two-hundred patients were randomly assigned to groups A (Chinese and Western medicine, T4 transection plus "Energy-boosting and Yin-nourishing anti-perspirant formula") and B (Western medicine, T4 transection). The surgical efficiency, recurrence rate, compensatory hyperhidrosis, and the long-term life quality were compared. Another 100 cases (group C, T2 transection) were analyzed as a control group. After surgery, the palmar hyperhidrosis and armpit sweating were relieved in all the three group patients and in 34 % of patients combined with plantar hyperhidrosis, the symptoms were relieved. Transient palmar hyperhidrosis was found in three cases at day 2 to day 5 postoperatively. One case of Horner's syndrome and one case recurrence were found in group C patients. The compensatory sweating of various degrees occurred in all the three groups. There were 25, 24, and 43 cases in groups A, B, and C, respectively. There is a significant difference between groups C, A, and B. The compensatory sweating in 13 cases of group A and four cases of group B had different degrees of improvement in the follow-up 6 months after surgery. There is a significant difference. Thoracoscopic bilateral T4 sympathetic chain and the Kuntz resection are the optimized surgical treatments for the palmar hyperhidrosis. "Energy-boosting and Yin-nourishing anti-perspirant formula" is effective in treating the postoperative compensatory sweating.