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Sample records for piriformis starting portals

  1. Piriformis syndrome

    MedlinePlus

    ... the sciatic nerve. The syndrome, which affects more women than men, is uncommon. But when it occurs, it can cause sciatica . Causes The piriformis muscle is involved in nearly every movement you make with your lower body, from walking ...

  2. Cephalomedullary nails in the treatment of high-energy proximal femur fractures in young patients: a prospective, randomized comparison of trochanteric versus piriformis fossa entry portal.

    PubMed

    Starr, Adam J; Hay, Michael T; Reinert, Charles M; Borer, Drake S; Christensen, Kevin C

    2006-04-01

    The purpose of this study is to compare a cephalomedullary nail that uses a piriformis fossa starting point to one that uses a trochanteric starting point, in the treatment of high-energy proximal femur fractures in young patients. Our hypothesis was that a nail that uses a trochanteric starting point would result in less blood loss than a nail that uses a piriformis fossa starting point. Prospective, randomized. Level 1 trauma center. Thirty-four consecutive patients aged between 18 and 50 years who sustained a subtrochanteric, intertrochanteric, or ipsilateral femoral neck/shaft fracture due to a high-energy injury were enrolled. Patients were randomized to have their fractures repaired with a Russell-Taylor Recon Nail or Howmedica Long Gamma Nail. Surgery was performed on a fracture table, in supine or lateral position according to the surgeon's preference. Direct fracture exposure was avoided. Reduction was obtained through traction, patient positioning, and manual pressure. If necessary, stab-wound incisions were made to introduce instruments to improve reduction. Intramedullary reamers were used, and all nails were statically locked. Bone grafting was not used. Blood loss, incision length, duration of surgery, and body mass index were recorded for each patient. Surgeon's assessment of ease of use of the device and quality of reduction were noted. Patients were to be followed up to assess fracture union. Hip and knee ranges of motion at latest follow-up were measured. Radiographs obtained at the time of union were assessed for varus malalignment. Return to work status was recorded, and the Harris Hip Score was used to assess hip function. There were 17 patients in each group. The 2 groups did not differ with regard to blood loss, incision length, and duration of surgery or intraoperative complications. Body mass index was significantly linked to duration of surgery (P<0.001) and incision length (P<0.001). Surgeon's assessment of ease of use and reduction

  3. Piriformis syndrome, diagnosis and treatment.

    PubMed

    Kirschner, Jonathan S; Foye, Patrick M; Cole, Jeffrey L

    2009-07-01

    Piriformis syndrome (PS) is an uncommon cause of sciatica that involves buttock pain referred to the leg. Diagnosis is often difficult, and it is one of exclusion due to few validated and standardized diagnostic tests. Treatment for PS has historically focused on stretching and physical therapy modalities, with refractory patients also receiving anesthetic and corticosteroid injections into the piriformis muscle origin, belly, muscle sheath, or sciatic nerve sheath. Recently, the use of botulinum toxin (BTX) to treat PS has gained popularity. Its use is aimed at relieving sciatic nerve compression and inherent muscle pain from a tight piriformis. BTX is being used increasingly for myofascial pain syndromes, and some studies have demonstrated superior efficacy to corticosteroid injection. The success of BTX in treating PS supports the prevailing pathoanatomic etiology of the condition and suggests a promising future for BTX in the treatment of other myofascial pain syndromes.

  4. Piriformis fossa - an anatomical and orthopedics consideration.

    PubMed

    Lakhwani, O P; Mittal, P S; Naik, D C

    2014-03-01

    Piriformis fossa is an important anatomical landmark having significant clinical value in orthopedic surgery; but its location and anatomical relationship with surrounding structures are not clearly defined. Hence it is necessary to clearly describe it in respect to anatomical and orthopedic aspect. Fifty Cadaveric dry femoral bones and Dissection of the four hip specimens were used to study the Piriformis fossa in respect to location and its relationship with surrounding structures. Clinical importance of piriformis fossa was determined in reference to antegrade femoral nail insertion. Piriformis muscle and so called piriformis fossa are unrelated entities. Piriformis fossa is anatomical site of insertion of obturator externus. In dry cadaveric femora; fossa was not always located in the direction of femoral shaft. It was located in the direction of femoral shaft in 24% cases only. In 68% cases femoral canal was aligned lateral and in 8% cases, it lies medial to the fossa. Piriformis fossa should be named as Trorchanteric fossa or Obturator fossa for better anatomical description. So called Piriformis fossa does not found to be universally corresponding to femoral shaft hence selection of entry site should be based on variable proximal femur and area on femur which corresponds to femoral shaft.

  5. The clinical features of the piriformis syndrome: a systematic review

    PubMed Central

    Song, Fujian; Riera, Ricardo; Sambandan, Sidha

    2010-01-01

    Piriformis syndrome, sciatica caused by compression of the sciatic nerve by the piriformis muscle, has been described for over 70 years; yet, it remains controversial. The literature consists mainly of case series and narrative reviews. The objectives of the study were: first, to make the best use of existing evidence to estimate the frequencies of clinical features in patients reported to have PS; second, to identify future research questions. A systematic review was conducted of any study type that reported extractable data relevant to diagnosis. The search included all studies up to 1 March 2008 in four databases: AMED, CINAHL, Embase and Medline. Screening, data extraction and analysis were all performed independently by two reviewers. A total of 55 studies were included: 51 individual and 3 aggregated data studies, and 1 combined study. The most common features found were: buttock pain, external tenderness over the greater sciatic notch, aggravation of the pain through sitting and augmentation of the pain with manoeuvres that increase piriformis muscle tension. Future research could start with comparing the frequencies of these features in sciatica patients with and without disc herniation or spinal stenosis. PMID:20596735

  6. Piriformis syndrome: a cause of nondiscogenic sciatica.

    PubMed

    Cass, Shane P

    2015-01-01

    Piriformis syndrome is a nondiscogenic cause of sciatica from compression of the sciatic nerve through or around the piriformis muscle. Patients typically have sciatica, buttocks pain, and worse pain with sitting. They usually have normal neurological examination results and negative straight leg raising test results. Flexion, adduction, and internal rotation of the hip, Freiberg sign, Pace sign, and direct palpation of the piriformis cause pain and may reproduce symptoms. Imaging and neurodiagnostic studies are typically normal and are used to rule out other etiologies for sciatica. Conservative treatment, including medication and physiotherapy, is usually helpful for the majority of patients. For recalcitrant cases, corticosteroid and botulinum toxin injections may be attempted. Ultrasound and other imaging modalities likely improve accuracy of injections. Piriformis tenotomy and decompression of the sciatic nerve can be done for those who do not respond.

  7. Ultrasound-guided piriformis muscle injection. A new approach.

    PubMed

    Bevilacqua Alén, E; Diz Villar, A; Curt Nuño, F; Illodo Miramontes, G; Refojos Arencibia, F J; López González, J M

    2016-12-01

    Piriformis syndrome is an uncommon cause of buttock and leg pain. Some treatment options include the injection of piriformis muscle with local anesthetic and steroids. Various techniques for piriformis muscle injection have been described. Ultrasound allows direct visualization and real time injection of the piriformis muscle. We describe 5 consecutive patients, diagnosed of piriformis syndrome with no improvement after pharmacological treatment. Piriformis muscle injection with local anesthetics and steroids was performed using an ultrasound technique based on a standard technique. All 5 patients have improved their pain measured by numeric verbal scale. One patient had a sciatic after injection that improved in 10 days spontaneously. We describe an ultrasound-guided piriformis muscle injection that has the advantages of being effective, simple, and safe. Copyright © 2016 Sociedad Española de Anestesiología, Reanimación y Terapéutica del Dolor. Publicado por Elsevier España, S.L.U. All rights reserved.

  8. Anatomical variations between the sciatic nerve and the piriformis muscle: a contribution to surgical anatomy in piriformis syndrome.

    PubMed

    Natsis, Konstantinos; Totlis, Trifon; Konstantinidis, George A; Paraskevas, George; Piagkou, Maria; Koebke, Juergen

    2014-04-01

    To detect the variable relationship between sciatic nerve and piriformis muscle and make surgeons aware of certain anatomical features of each variation that may be useful for the surgical treatment of the piriformis syndrome. The gluteal region of 147 Caucasian cadavers (294 limbs) was dissected. The anatomical relationship between the sciatic nerve and the piriformis muscle was recorded and classified according to the Beaton and Anson classification. The literature was reviewed to summarize the incidence of each variation. The sciatic nerve and piriformis muscle relationship followed the typical anatomical pattern in 275 limbs (93.6 %). In 12 limbs (4.1 %) the common peroneal nerve passed through and the tibial nerve below a double piriformis. In one limb (0.3 %) the common peroneal nerve coursed superior and the tibial nerve below the piriformis. In one limb (0.3 %) both nerves penetrated the piriformis. In one limb (0.3 %) both nerves passed above the piriformis. Four limbs (1.4 %) presented non-classified anatomical variations. When a double piriformis muscle was present, two different arrangements of the two heads were observed. Anatomical variations of the sciatic nerve around the piriformis muscle were present in 6.4 % of the limbs examined. When dissection of the entire piriformis is necessary for adequate sciatic nerve decompression, the surgeon should explore for the possible existence of a second tendon, which may be found either inferior or deep to the first one. Some rare, unclassified variations of the sciatic nerve should be expected during surgical intervention of the region.

  9. Diagnosis and management of piriformis syndrome: an osteopathic approach.

    PubMed

    Boyajian-O'Neill, Lori A; McClain, Rance L; Coleman, Michele K; Thomas, Pamela P

    2008-11-01

    Piriformis syndrome is a neuromuscular condition characterized by hip and buttock pain. This syndrome is often overlooked in clinical settings because its presentation may be similar to that of lumbar radiculopathy, primary sacral dysfunction, or innominate dysfunction. The ability to recognize piriformis syndrome requires an understanding of the structure and function of the piriformis muscle and its relationship to the sciatic nerve. The authors review the anatomic and clinical features of this condition, summarizing the osteopathic medical approach to diagnosis and management. A holistic approach to diagnosis requires a thorough neurologic history and physical assessment of the patient based on the pathologic characteristics of piriformis syndrome. The authors note that several nonpharmacologic therapies, including osteopathic manipulative treatment, can be used alone or in conjunction with pharmacotherapeutic options in the management of piriformis syndrome.

  10. Piriformis syndrome: a case with non-discogenic sciatalgia.

    PubMed

    Parlak, Adem; Aytekin, Aykut; Develi, Sedat; Ekinci, Safak

    2014-01-01

    Piriformis syndrome is a clinical picture of non-discogenic sciatica caused by compression of the sciatic nerve by the piriformis muscle. It has variable etiologies and the patho-physiology is not fully understood. The major etiology was known to be the spasm, edema and inflammation of the piriformis muscle and sciatic nerve compression of the muscle later on. Patients can be diagnosed immediately with a comprehensive clinical examination and early diagnosis makes the treatment much easier. Diagnosis of the piriformis syndrome, a very rare cause of low back pain, first requires that this syndrome is remembered, and then a differential diagnosis should be performed. A case of piriformis syndrome diagnosed in a patient who presented with low back pain is reported in this study.

  11. Brucellosis presenting as piriformis myositis: a case report

    PubMed Central

    2011-01-01

    Introduction Myositis is a rare bacterial muscle infection. Involvement of the piriformis muscle has been rarely reported in the literature. In this report we describe a case of piriformis myositis due to Brucella melitensis, which to the best of our knowledge is the first such case presented in the literature. Case presentation We report the case of a 19-year-old Caucasian man who presented to our institution with fever and right hip pain. Brucellosis was suspected, but the clinical suspicion was for spondylodiscitis. A pelvic magnetic resonance imaging scan allowed prompt diagnosis of inflammatory involvement of the right piriformis muscle. Blood culture results were positive for B. melitensis. Our patient was treated with antibiotics, and follow-up magnetic resonance imaging scans showed resolution of the inflammation. Conclusion Brucellosis can present as piriformis myositis. The clinical diagnosis of piriformis myositis is difficult, as it can mimic other common entities such as referred back pain from spondylodiscitis. Magnetic resonance imaging is the method of choice for establishing the diagnosis in the early stages of the disease, as late diagnosis can lead to abscess formation and the need for drainage. PMID:21450058

  12. Needle placement for piriformis injection using 3-D imaging.

    PubMed

    Clendenen, Steven R; Candler, Shawn A; Osborne, Michael D; Palmer, Scott C; Duench, Stephanie; Glynn, Laura; Ghazi, Salim M

    2013-01-01

    Piriformis syndrome is a pain syndrome originating in the buttock and is attributed to 6% - 8% of patients referred for the treatment of back and leg pain. The treatment for piriformis syndrome using fluoroscopy, computed tomography (CT), electromyography (EMG), and ultrasound (US) has become standard practice. The treatment of Piriformis Syndrome has evolved to include fluoroscopy and EMG with CT guidance. We present a case study of 5 successful piriformis injections using 3-D computer-assisted electromagnet needle tracking coupled with ultrasound. A 6-degree of freedom electromagnetic position tracker was attached to the ultrasound probe that allowed the system to detect the position and orientation of the probe in the magnetic field. The tracked ultrasound probe was used to find the posterior superior iliac spine. Subsequently, 3 points were captured to register the ultrasound image with the CT or magnetic resonance image scan. Moreover, after the registration was obtained, the navigation system visualized the tracked needle relative to the CT scan in real-time using 2 orthogonal multi-planar reconstructions centered at the tracked needle tip. Conversely, a recent study revealed that fluoroscopically guided injections had 30% accuracy compared to ultrasound guided injections, which tripled the accuracy percentage. This novel technique exhibited an accurate needle guidance injection precision of 98% while advancing to the piriformis muscle and avoiding the sciatic nerve. The mean (± SD) procedure time was 19.08 (± 4.9) minutes. This technique allows for electromagnetic instrument tip tracking with real-time 3-D guidance to the selected target. As with any new technique, a learning curve is expected; however, this technique could offer an alternative, minimizing radiation exposure.

  13. Retrograde entry portal for femoral interlocking nailing in femoral nonunion after plate failure: a prospective comparative study with antergrade portal.

    PubMed

    Assaghir, Yasser

    2017-03-01

    The piriformis fossa is the ideal portal of entry for antegrade interlocking nailing. Localizing this portal can be difficult and its eccentricity leads to complications. This prospective comparative study was designed to compare an innovative way to obtain the ideal portal from inside the medullary canal in cases of plate failure and compare it to the classic antegrade portal. It included 41 cases (19 antegrade and 22 retrograde). The retrograde portal was significantly better in terms of entry time, radiation time, blood-loss, and wound length. The proper portal was rapidly and easily achieved in all retrograde cases without complications; while four in antegrade cases had complications. Minimum follow-up was 2 years. Level of evidence III.

  14. Chiropractic management of a US Army veteran with low back pain and piriformis syndrome complicated by an anatomical anomaly of the piriformis muscle: a case study

    PubMed Central

    Chapman, Cynthia; Bakkum, Barclay W.

    2012-01-01

    Objective The purpose of this article is to present the case of a patient with an anatomical anomaly of the piriformis muscle who had a piriformis syndrome and was managed with chiropractic care. Case Report A 32-year-old male patient presented to a chiropractic clinic with a chief complaint of low back pain that radiated into his right buttock, right posterior thigh, and right posterior calf. The complaint began 5 years prior as a result of injuries during Airborne School in the US Army resulting in a 60% disability rating from the Veterans Administration. Magnetic resonance imaging demonstrated a mildly decreased intradiscal T2 signal with shallow central subligamentous disk displacement and low-grade facet arthropathy at L5/S1, a hypolordotic lumbar curvature, and accessory superior bundles of the right piriformis muscle without morphologic magnetic resonance imaging evidence of piriformis syndrome. Intervention and Outcome Chiropractic treatment included lumbar and sacral spinal manipulation with soft tissue massage to associated musculature and home exercise recommendations. Variations from routine care included proprioceptive neuromuscular facilitation stretches, electric muscle stimulation, acupressure point stimulation, Sacro Occipital Technique pelvic blocking, CranioSacral therapy, and an ergonomic evaluation. Conclusion A patient with a piriformis anomaly with symptoms of low back pain and piriformis syndrome responded positively to conservative chiropractic care, although the underlying cause of the piriformis syndrome remained. PMID:22942838

  15. Spinal epidural abscess in a patient with piriformis pyomyositis

    PubMed Central

    Oh, Gerald S.; Abou-Al-Shaar, Hussam; Arnone, Gregory D.; Barks, Ashley L.; Hage, Ziad A.; Neckrysh, Sergey

    2016-01-01

    Background: Spinal epidural abscess resulting from piriformis pyomyositis is extremely rare. Such condition can result in serious morbidity and mortality if not addressed in a timely manner. Case Description: The authors describe the case of a 19-year-old male presenting with a 2-week history of fever, low back pain, and nuchal rigidity. When found to have radiographic evidence of a right piriformis pyomyositis, he was transferred to our institution for further evaluation. Because he demonstrated rapid deterioration, cervical, thoracic, and lumbar magnetic resonance imaging scans were emergently performed. They revealed an extensive posterior spinal epidural abscess causing symptomatic spinal cord compression extending from C2 to the sacrum. He underwent emergent decompression and abscess evacuation through a dorsal midline approach. Postoperatively, he markedly improved. Upon discharge, the patient regained 5/5 strength in both upper and lower extremities. Cultures from the epidural abscess grew methicillin-sensitive Staphylococcus aureus warranting a 6-week course of intravenous nafcillin. Conclusion: A 19-year-old male presented with a holospinal epidural abscess (C2 to sacrum) originating from piriformis pyomyositis. The multilevel cord abscess was emergently decompressed, leading to a marked restoration of neurological function. PMID:28028447

  16. Piriformis syndrome: a case series of 31 Bangladeshi people with literature review.

    PubMed

    Siddiq, Md Abu Bakar; Hossain, Md Shawkat; Uddin, Mohammad Moin; Jahan, Israt; Khasru, Moshiur Rahman; Haider, Neaz Mahmud; Rasker, Johannes J

    2017-02-01

    To describe a series of piriformis syndrome patient among Bangladesh people with literature review. Consecutive 31 piriformis syndrome patients were enrolled. Besides history and clinical examination, piriformis muscle thickness was also measured with diagnostic ultrasound (3.5 MHZ). MRI of lumbar spine, X-rays of lumbo-sacral spine, and pelvis were performed in all patients. Statistical Package for the Social Sciences (SPSS), Windows 8.0, was used for statistical calculation, and univariate analysis of primary data was done. Data present with frequency table. For literature review concerning piriformis syndrome we used Embase, Pubmed, Medline, and Cochrane database. A total of 31 patients (21 female) with PS were enrolled, 21 housewives. Mean age 42.2 ± 14.5 years. All presented with buttock pain, aggravating with long sitting (31), lying on the affected side (31), during rising from a chair(24), and forward bending (28). Six reported pain improvement while walking. Gluteal tenderness, positive FAIR test, and Pace sign were elicited in all patients. A palpable gluteal mass was found in 8 cases, gluteal atrophy in 5 other patients. The mean piriformis muscle thickness on the diseased side was more than on the healthy side (13.6 ± 3.7 vs 10.9 ± 1.9, (p > 0.05). Common conditions associated with PS were: preceding fall (9, 29 %), overuse of piriformis muscle, lumbar spinal stenosis, fibromyalgia, intra-muscular gluteal injection, blunt trauma over the buttock, leg length discrepancy and use of rear pocket's wallet. In Bangladesh piriformis syndrome is more common in female, especially among housewives. A fall often precedes the condition. Piriformis syndrome should be considered as possible diagnosis when sciatica occurs without a clear spine pathology.

  17. Validation of Polytomella piriformis nomen nudum (Chlamydomonadaceae): a Distinct Lineage Within a Genus of Nonphotosynthetic Green Algae.

    PubMed

    MacDonald, Shelley M; Lee, Robert W

    2015-01-01

    Polytomella strain SAG 63-10 was first described by Pringsheim (1963) as Polytomella piriformis nomen nudum. The current study validates the name Polytomella piriformis following the International Code of Nomenclature for algae, fungi, and plants (ICN). We present 18S rRNA sequences of SAG 63-10 and several other Polytomella strains, which, along with existing mitochondrial DNA sequences, clearly distinguishes P. piriformis n. sp. from other available Polytomella species. The first type material of the species is presented, as well as an illustration and micrographs. Our own observations of P. piriformis SAG 63-10 are compared to Pringsheim's description and to descriptions of other valid Polytomella spp.

  18. Roadside Tracker Portal-less Portal Monitor

    SciTech Connect

    Ziock, Klaus-Peter; Cheriyadat, Anil M.; Bradley, Eric Craig; Cunningham, Mark F.; Fabris, Lorenzo; Goddard, Jr, James Samuel; Hornback, Donald Eric; Karnowski, Thomas Paul; Kerekes, Ryan A.; Newby, Jason

    2013-07-01

    This report documents the full development cycle of the Roadside Tracker (RST) Portal-less Portal monitor (Fig. 1) funded by DHS DNDO. The project started with development of a proof-of-feasibility proto-type, proceeded through design and construction of a proof-of-concept (POC) prototype, a test-and-evaluation phase, participation in a Limited Use Exercise that included the Standoff Radiation Detections Systems developed under an Advanced Technology Demonstration and concluded with participation in a Characterization Study conducted by DNDO.

  19. Earthdata Developer Portal

    NASA Technical Reports Server (NTRS)

    Plofchan, Peter; Reese, Mark; Siarto, Jeff; Clark, Nathan

    2016-01-01

    The Earthdata Developer Portal provides clear paths to get you started with core EOSDIS applications. Each path is accompanied by an overview page that explains the goal of the path and a short overview of each element along with links for detailed documentation of each component.

  20. The relationship between the piriformis muscle, low back pain, lower limb injuries and motor control training among elite football players.

    PubMed

    Leung, Felix T; Mendis, M Dilani; Stanton, Warren R; Hides, Julie A

    2015-07-01

    Australian Football League (AFL) players have a high incidence of back injuries. Motor control training to increase lumbopelvic neuromuscular control has been effective in reducing low back pain (LBP) and lower limb injuries in elite athletes. Control of pelvic and femoral alignment during functional activity involves the piriformis muscle. This study investigated (a) the effect of motor control training on piriformis muscle size in AFL players, with and without LBP, during the playing season, and (b) whether there is a relationship between lower limb injury and piriformis muscle size. Stepped-wedge intervention. 46 AFL players participated in a motor control training programme consisting of two 30min sessions per week over 7-8 weeks, delivered across the season as a randomised 3 group single-blinded stepped-wedge design. Assessment of piriformis muscle cross-sectional area (CSA) involved magnetic resonance imaging (MRI) at 3 time points during the season. Assessment of LBP consisted of player interview and physical examination. Injury data were obtained from club records. An interaction effect for Time, Intervention Group and LBP group (F=3.7, p=0.03) was found. Piriformis muscle CSA showed significant increases between Times 1 and 2 (F=4.24, p=0.046), and Times 2 and 3 (F=8.59, p=0.006). Players with a smaller increase in piriformis muscle CSA across the season had higher odds of sustaining an injury (OR=1.08). Piriformis muscle size increases across the season in elite AFL players and is affected by the presence of LBP and lower limb injury. Motor control training positively affects piriformis muscle size in players with LBP. Copyright © 2014 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

  1. Streptococcal necrotising myositis of obturator internus and piriformis in a type 2 diabetic patient presenting as sepsis of unknown origin.

    PubMed

    Sharma, P R; McEvoy, H C; Floyd, D C

    2011-09-01

    This report describes a case of necrotising myositis of the obturator internus and piriformis muscles. Necrotising myositis is a rare result of group A streptococcal infection. It is usually fatal and has not been described previously in the obturator internus and piriformis. We describe how, following presentation to an emergency department, rapid diagnosis was arrived at by clinically guided radiological investigation. The report considers the possible aetiology of the condition, the diagnosis and its management, and reviews the relevant literature.

  2. Portal hypertension.

    PubMed

    Garcia-Tsao, G

    2001-05-01

    Portal hypertension is the main complication of cirrhosis and is responsible for its most common complications: variceal hemorrhage, ascites, and portosystemic encephalopathy. Portal hypertension is the result of increased intrahepatic resistance and increased portal venous inflow, which in turn is the result of splanchnic vasodilatation. Vasodilatation (splanchnic and systemic) and hyperdynamic circulation are hemodynamic abnormalities typical of cirrhosis and portal hypertension. Gastroesophageal varices result almost solely from portal hypertension, although the hyperdynamic circulation contributes to variceal growth and hemorrhage. Ascites results from sinusoidal hypertension and sodium retention, which is, in turn, secondary to vasodilatation and activation of neurohumoral systems. The hepatorenal syndrome represents the result of extreme vasodilatation with an extreme decrease in effective blood volume that leads to maximal activation of vasoconstrictive systems, renal vasoconstriction, and renal failure. Spontaneous bacterial peritonitis is a potentially lethal infection of ascites that occurs in the absence of a local source of infection. Portosystemic encephalopathy is a consequence of both portal hypertension (shunting of blood through portosystemic collaterals) and hepatic insufficiency that result in the accumulation of neurotoxins in the brain. This paper reviews the recent advances in the pathophysiology and management of the complications of portal hypertension.

  3. Portal hypertension.

    PubMed

    Garcia-Tsao, Guadalupe

    2003-05-01

    Portal hypertension, the main complication of cirrhosis, is responsible for its most common complications: variceal hemorrhage, ascites, and portosystemic encephalopathy. Portal hypertension is the result of increased intrahepatic resistance and increased portal venous inflow. Vasodilatation (splanchnic and systemic) and the hyperdynamic circulation are hemodynamic abnormalities typical of cirrhosis and portal hypertension. Gastroesophageal varices result almost solely from portal hypertension, although the hyperdynamic circulation contributes to variceal growth and hemorrhage. Ascites results from sinusoidal hypertension and sodium retention, which, in turn, is secondary to vasodilatation and activation of neurohumoral systems. The hepatorenal syndrome represents the result of extreme vasodilatation, with an extreme decrease in effective blood volume that leads to maximal activation of vasoconstrictive systems, renal vasoconstriction, and renal failure. Spontaneous bacterial peritonitis is a potentially lethal infection of ascites that occurs in the absence of a local source of infection. Portosystemic encephalopathy is a consequence of both portal hypertension (shunting of blood through portosystemic collaterals) and hepatic insufficiency that result in the accumulation of neurotoxins in the brain. This review covers the recent advances in the pathophysiology and management of the complications of portal hypertension.

  4. Portal Hypertension

    MedlinePlus

    ... Affairs, Sidney Kimmel Medical College at Thomas Jefferson University Get the Quick Facts For this topic NOTE: ... at least 6 months) Drinking large amounts of alcohol over a long period of time Portal hypertension ...

  5. Lumbar facet injection for the treatment of chronic piriformis myofascial pain syndrome: 52 case studies.

    PubMed

    Huang, Jen-Ting; Chen, Han-Yu; Hong, Chang-Zern; Lin, Ming-Ta; Chou, Li-Wei; Chen, Hsin-Shui; Tsai, Chien-Tsung; Chang, Wen-Dien

    2014-01-01

    The aim of this study was to demonstrate the effectiveness of lumbar facet joint injection for piriformis myofascial pain syndrome. Fifty-two patients with chronic myofascial pain in the piriformis muscle each received a lumbar facet injection into the ipsilateral L5-S1 facet joint region, using the multiple insertion technique. Subjective pain intensity, trunk extension range, and lumbar facet signs were measured before, immediately after, and 2 weeks after injection. Thirty-six patients received follow-up for 6 months. Immediately after the injection, 27 patients (51.9%) had complete pain subsidence, 19 patients (36.5%) had pain reduction to a tolerable level, and only 6 patients (11.5%) had no pain relief to a tolerable level. Mean pain intensity was reduced from 7.4±0.9 to 1.6±2.1 after injection (P<0.01). This effectiveness lasted for 2 weeks in 49 patients (94.2%), and lasted for approximately 6 months in 35 (97.2%) of 36 patients. The mean range of motion increased from 13.4±6.8 degrees to 22.1±6.0 degrees immediately after injection, and further increased 2 weeks and 6 months later. Immediately after injection, 45 patients (86.5%) had no facet sign. In addition, 90.4% and 94.4% of patients had no facet sign after 2 weeks and after 6 months, respectively. It is important to identify the possible cause of piriformis myofascial pain syndrome. If this pain is related to lumbar facet lesions, lumbar facet joint injection can immediately suppress piriformis myofascial pain symptoms. This effectiveness may last for at least 6 months in most patients. This study further supports the importance of eliminating the underlying etiological lesion for complete and effective relief of myofascial pain syndrome.

  6. Anthropometric Study of the Piriformis Muscle and Sciatic Nerve: A Morphological Analysis in a Polish Population

    PubMed Central

    Haładaj, Robert; Pingot, Mariusz; Polguj, Michał; Wysiadecki, Grzegorz; Topol, Mirosław

    2015-01-01

    Background The aim of this study was to determine relationships between piriformis muscle (PM) and sciatic nerve (SN) with reference to sex and anatomical variations. Material/Methods Deep dissection of the gluteal region was performed on 30 randomized, formalin-fixed human lower limbs of adults of both sexes of the Polish population. Anthropometric measurements were taken and then statistically analyzed. Results The conducted research revealed that, apart from the typical structure of the piriformis muscle, the most common variation was division of the piriformis muscle into two heads, with the common peroneal nerve running between them (20%). The group with anatomical variations of the sciatic nerve course displayed greater diversity of morphometric measurement results. There was a statistically significant correlation between the lower limb length and the distance from the sciatic nerve to the greater trochanter in the male specimens. On the other hand, in the female specimens, a statistically significant correlation was observed between the lower limb length and the distance from the sciatic nerve to the ischial tuberosity. The shortest distance from the sciatic nerve to the greater trochanter measured at the level of the inferior edge of the piriformis was 21 mm, while the shortest distance to the ischial tuberosity was 63 mm. Such correlations should be taken into account during invasive medical procedures performed in the gluteal region. Conclusions It is possible to distinguish several anatomical variations of the sciatic nerve course within the deep gluteal region. The statistically significant correlations between some anthropometric measurements were only present within particular groups of male and female limbs. PMID:26629744

  7. Lumbar facet injection for the treatment of chronic piriformis myofascial pain syndrome: 52 case studies

    PubMed Central

    Huang, Jen-Ting; Chen, Han-Yu; Hong, Chang-Zern; Lin, Ming-Ta; Chou, Li-Wei; Chen, Hsin-Shui; Tsai, Chien-Tsung; Chang, Wen-Dien

    2014-01-01

    Background and aims The aim of this study was to demonstrate the effectiveness of lumbar facet joint injection for piriformis myofascial pain syndrome. Methods Fifty-two patients with chronic myofascial pain in the piriformis muscle each received a lumbar facet injection into the ipsilateral L5–S1 facet joint region, using the multiple insertion technique. Subjective pain intensity, trunk extension range, and lumbar facet signs were measured before, immediately after, and 2 weeks after injection. Thirty-six patients received follow-up for 6 months. Results Immediately after the injection, 27 patients (51.9%) had complete pain subsidence, 19 patients (36.5%) had pain reduction to a tolerable level, and only 6 patients (11.5%) had no pain relief to a tolerable level. Mean pain intensity was reduced from 7.4±0.9 to 1.6±2.1 after injection (P<0.01). This effectiveness lasted for 2 weeks in 49 patients (94.2%), and lasted for approximately 6 months in 35 (97.2%) of 36 patients. The mean range of motion increased from 13.4±6.8 degrees to 22.1±6.0 degrees immediately after injection, and further increased 2 weeks and 6 months later. Immediately after injection, 45 patients (86.5%) had no facet sign. In addition, 90.4% and 94.4% of patients had no facet sign after 2 weeks and after 6 months, respectively. Conclusions It is important to identify the possible cause of piriformis myofascial pain syndrome. If this pain is related to lumbar facet lesions, lumbar facet joint injection can immediately suppress piriformis myofascial pain symptoms. This effectiveness may last for at least 6 months in most patients. This study further supports the importance of eliminating the underlying etiological lesion for complete and effective relief of myofascial pain syndrome. PMID:25170256

  8. Portal hypertension.

    PubMed

    Garcia-Tsao, Guadalupe

    2002-05-01

    Portal hypertension is the main complication of cirrhosis and is responsible for its most common complications: variceal hemorrhage, ascites, and portosystemic encephalopathy. Portal hypertension is the result of increased intrahepatic resistance and increased portal venous inflow. Vasodilatation (splanchnic and systemic) and the hyperdynamic circulation are hemodynamic abnormalities typical of cirrhosis and portal hypertension. Gastroesophageal varices result almost solely from portal hypertension, although the hyperdynamic circulation contributes to variceal growth and hemorrhage. Ascites results from sinusoidal hypertension and sodium retention, which is in turn secondary to vasodilatation and activation of neurohumoral systems. Hepatic hydrothorax results from the passage of ascites across the diaphragm and into the pleural space. The hepatorenal syndrome represents the result of extreme vasodilatation with an extreme decrease in effective blood volume that leads to maximal activation of vasoconstrictive systems, renal vasoconstriction, and renal failure. Spontaneous bacterial peritonitis is a potentially lethal infection of ascites that occurs in the absence of a local source of infection. Portosystemic encephalopathy is a consequence of both portal hypertension (shunting of blood through portosystemic collaterals) and hepatic insufficiency resulting in the accumulation of neurotoxins in the brain.

  9. Portal biliopathy

    PubMed Central

    Khuroo, Mohammad S; Rather, Ajaz A; Khuroo, Naira S; Khuroo, Mehnaaz S

    2016-01-01

    Portal biliopathy refers to cholangiographic abnormalities which occur in patients with portal cavernoma. These changes occur as a result of pressure on bile ducts from bridging tortuous paracholedochal, epicholedochal and cholecystic veins. Bile duct ischemia may occur due prolonged venous pressure effect or result from insufficient blood supply. In addition, encasement of ducts may occur due fibrotic cavernoma. Majority of patients are asymptomatic. Portal biliopathy is a progressive disease and patients who have long standing disease and more severe bile duct abnormalities present with recurrent episodes of biliary pain, cholangitis and cholestasis. Serum chemistry, ultrasound with color Doppler imaging, magnetic resonance imaging with magnetic resonance cholangiopancreatography and magnetic resonance portovenography are modalities of choice for evaluation of portal biliopathy. Endoscopic retrograde cholangiography being an invasive procedure is indicated for endotherapy only. Management of portal biliopathy is done in a stepwise manner. First, endotherapy is done for dilation of biliary strictures, placement of biliary stents to facilitate drainage and removal of bile duct calculi. Next portal venous pressure is reduced by formation of surgical porto-systemic shunt or transjugular intrahepatic portosystemic shunt. This causes significant resolution of biliary changes. Patients who persist with biliary symptoms and bile duct changes may benefit from surgical biliary drainage procedures (hepaticojejunostomy or choledechoduodenostomy). PMID:27672292

  10. Portal biliopathy.

    PubMed

    Khuroo, Mohammad S; Rather, Ajaz A; Khuroo, Naira S; Khuroo, Mehnaaz S

    2016-09-21

    Portal biliopathy refers to cholangiographic abnormalities which occur in patients with portal cavernoma. These changes occur as a result of pressure on bile ducts from bridging tortuous paracholedochal, epicholedochal and cholecystic veins. Bile duct ischemia may occur due prolonged venous pressure effect or result from insufficient blood supply. In addition, encasement of ducts may occur due fibrotic cavernoma. Majority of patients are asymptomatic. Portal biliopathy is a progressive disease and patients who have long standing disease and more severe bile duct abnormalities present with recurrent episodes of biliary pain, cholangitis and cholestasis. Serum chemistry, ultrasound with color Doppler imaging, magnetic resonance imaging with magnetic resonance cholangiopancreatography and magnetic resonance portovenography are modalities of choice for evaluation of portal biliopathy. Endoscopic retrograde cholangiography being an invasive procedure is indicated for endotherapy only. Management of portal biliopathy is done in a stepwise manner. First, endotherapy is done for dilation of biliary strictures, placement of biliary stents to facilitate drainage and removal of bile duct calculi. Next portal venous pressure is reduced by formation of surgical porto-systemic shunt or transjugular intrahepatic portosystemic shunt. This causes significant resolution of biliary changes. Patients who persist with biliary symptoms and bile duct changes may benefit from surgical biliary drainage procedures (hepaticojejunostomy or choledechoduodenostomy).

  11. Piriformis muscle syndrome with assessment of sciatic nerve using diffusion tensor imaging and tractography: a case report.

    PubMed

    Wada, Keizo; Goto, Tomohiro; Takasago, Tomoya; Hamada, Daisuke; Sairyo, Koichi

    2017-06-14

    Piriformis muscle syndrome (PMS) is difficult to diagnose by objective evaluation of sciatic nerve injury. Here we report a case of PMS diagnosed by diffusion tensor imaging (DTI) and tractography of the sciatic nerve, which can assess and visualize the extent of nerve injury. The patient was a 53-year-old man with a 2-year history of continuous pain and numbness in the left leg. His symptoms worsened when sitting. Physical examination, including sensorimotor neurologic tests, the deep tendon reflex test, and the straight leg raise test, revealed no specific findings. The hip flexion adduction and internal rotation test and resisted contraction maneuvers for the piriformis muscle were positive. There were no abnormal findings on magnetic resonance imaging (MRI) of the lumbar spine. The transverse diameter of piriformis muscle was slightly thicker in affected side on MRI of the pelvis. A single DTI sequence was performed during MRI of the pelvis. Fractional anisotropy (FA) and the apparent diffusion coefficient (ADC) of the sciatic nerve were quantified at three levels using the fiber-tracking method. FA values were significantly lower and ADC values were significantly higher distal to the piriformis muscle. We performed endoscopic-assisted resection of the piriformis tendon. Intraoperatively, the motor-evoked potentials in the left gastrocnemius were improved by resection of the piriformis tendon. The patient's symptoms improved immediately after surgery. There was no significant difference in FA or ADC at any level between the affected side and the unaffected side 3 months postoperatively. MRI-DTI may aid the diagnosis of PMS.

  12. Treatment of an individual with piriformis syndrome focusing on hip muscle strengthening and movement reeducation: a case report.

    PubMed

    Tonley, Jason C; Yun, Steven M; Kochevar, Ronald J; Dye, Jeremy A; Farrokhi, Shawn; Powers, Christopher M

    2010-02-01

    Case report. To describe an alternative treatment approach for piriformis syndrome using a hip muscle strengthening program with movement reeducation. Interventions for piriformis syndrome typically consist of stretching and/or soft tissue massage to the piriformis muscle. The premise underlying this approach is that a shortening or "spasm" of the piriformis is responsible for the compression placed upon the sciatic nerve. The patient was a 30-year-old male with right buttock and posterior thigh pain for 2 years. Clinical findings upon examination included reproduction of symptoms with palpation and stretching of the piriformis. Movement analysis during a single-limb step-down revealed excessive hip adduction and internal rotation, which reproduced his symptoms. Strength assessment revealed weakness of the right hip abductor and external rotator muscles. The patient's treatment was limited to hip-strengthening exercises and movement reeducation to correct the excessive hip adduction and internal rotation during functional tasks. Following the intervention, the patient reported 0/10 pain with all activities. The initial Lower Extremity Functional Scale questionnaire score of 65/80 improved to 80/80. Lower extremity kinematics for peak hip adduction and internal rotation improved from 15.9 degrees and 12.8 degrees to 5.8 degrees and 5.9 degrees, respectively, during a step-down task. This case highlights an alternative view of the pathomechanics of piriformis syndrome (overstretching as opposed to overshortening) and illustrates the need for functional movement analysis as part of the examination of these patients. Therapy, level 4.

  13. Secure portal.

    SciTech Connect

    Nelson, Cynthia Lee

    2007-09-01

    There is a need in security systems to rapidly and accurately grant access of authorized personnel to a secure facility while denying access to unauthorized personnel. In many cases this role is filled by security personnel, which can be very costly. Systems that can perform this role autonomously without sacrificing accuracy or speed of throughput are very appealing. To address the issue of autonomous facility access through the use of technology, the idea of a ''secure portal'' is introduced. A secure portal is a defined zone where state-of-the-art technology can be implemented to grant secure area access or to allow special privileges for an individual. Biometric technologies are of interest because they are generally more difficult to defeat than technologies such as badge swipe and keypad entry. The biometric technologies selected for this concept were facial and gait recognition. They were chosen since they require less user cooperation than other biometrics such as fingerprint, iris, and hand geometry and because they have the most potential for flexibility in deployment. The secure portal concept could be implemented within the boundaries of an entry area to a facility. As a person is approaching a badge and/or PIN portal, face and gait information can be gathered and processed. The biometric information could be fused for verification against the information that is gathered from the badge. This paper discusses a facial recognition technology that was developed for the purposes of providing high verification probabilities with low false alarm rates, which would be required of an autonomous entry control system. In particular, a 3-D facial recognition approach using Fisher Linear Discriminant Analysis is described. Gait recognition technology, based on Hidden Markov Models has been explored, but those results are not included in this paper. Fusion approaches for combining the results of the biometrics would be the next step in realizing the secure portal

  14. CCI Open Data Portal

    NASA Astrophysics Data System (ADS)

    Clarke, H.; Pechorro, E.; Bennett, V.; Farquhar, C.; Blower, J.

    2016-08-01

    The European Space Agency's (ESA's) Climate Change Initiative (CCI) Programme, producing harmonised datasets from long term Earth Observation satellite data records for a number of Essential Climate Variables (ECV's), provides a solid basis for climate science and modelling, for specialist application development and ultimately for European and global policy making.The resulting Climate Data Records (CDRs) represent a major investment of science, funding and personal effort, therefore extended access to those products is a key element of programme success.ECV datasets are currently being distributed through individual ECV teams, and access procedures and interfaces vary. To compliment and unify the work of the individual teams and to maximise the visibility and uptake of ECV data in the climate data user community within and beyond the CCI, a new ESA CCI project has started, to create a central open data portal and metadata catalogue for the ESA CCI project.This paper highlights key features of the Portal to date.

  15. Piriformis Syndrome in Knee Osteoarthritis Patients after Wearing Rocker Bottom Shoes

    PubMed Central

    Byeon, Gyeong Jo

    2011-01-01

    Background Rocker bottom shoes (RBS) are popular among patients with different foot, leg, or back problems in Korea. Patients with knee osteoarthritis concurrent weakness in the quadriceps femoris muscle, who wear these shoes, are often assumed to develop piriformis syndrome (PS). This study was performed to improve the understanding about the effect of wearing such shoes on duration of the syndrome in knee osteoarthritis. Methods We randomly assigned 150 patients with PS, who had used RBS daily for at least 6 months, to 2 groups, the S (stopped wearing) and K (kept wearing) groups. Both the groups were subdivided into the O and N groups, comprising patients with and without knee osteoarthritis, respectively. The effects of the treatment, including piriformis muscle injections and a home exercise program, were compared between the 2 groups by using a flexion-adduction-internal rotation (FAIR) test, a numeric rating scale (NRS), and the revised Oswestry disability index (ODI) during the 12-week follow-up. Results The positive FAIR test ratios, mean NRS scores, and revised ODIs were higher in the KO group than the SN group from 4?12 weeks after treatment. Conclusions RBS may extend duration of the PS in osteoarthritis patients. PMID:21716617

  16. Deep gluteal space problems: piriformis syndrome, ischiofemoral impingement and sciatic nerve release

    PubMed Central

    Carro, Luis Perez; Hernando, Moises Fernandez; Cerezal, Luis; Navarro, Ivan Saenz; Fernandez, Ana Alfonso; Castillo, Alexander Ortiz

    2016-01-01

    Summary Background Deep gluteal syndrome (DGS) is an underdiagnosed entity characterized by pain and/or dysesthesias in the buttock area, hip or posterior thigh and/or radicular pain due to a non-discogenic sciatic nerve entrapment in the subgluteal space. Multiple pathologies have been incorporated in this all-included “piriformis syndrome”, a term that has nothing to do with the presence of fibrous bands, obturator internus/gemellus syndrome, quadratus femoris/ischiofemoral pathology, hamstring conditions, gluteal disorders and orthopedic causes. Methods This article describes the subgluteal space anatomy, reviews known and new etiologies of DGS, and assesses the role of the radiologist and orthopaedic surgeons in the diagnosis, treatment and postoperative evaluation of sciatic nerve entrapments. Conclusion DGS is an under-recognized and multifactorial pathology. The development of periarticular hip endoscopy has led to an understanding of the pathophysiological mechanisms underlying piriformis syndrome, which has supported its further classification. The whole sciatic nerve trajectory in the deep gluteal space can be addressed by an endoscopic surgical technique. Endoscopic decompression of the sciatic nerve appears useful in improving function and diminishing hip pain in sciatic nerve entrapments, but requires significant experience and familiarity with the gross and endoscopic anatomy. Level of evidence IV. PMID:28066745

  17. Piriformis syndrome and low back pain: a new classification and review of the literature.

    PubMed

    Papadopoulos, Elias C; Khan, Safdar N

    2004-01-01

    Piriformis syndrome is a common cause of low back pain. It is often not included in the differential diagnosis of back, buttock, and leg pain. Additionally it has received minimal recognition because it is often seen as a diagnosis of exclusion. Familiarity with the common elements of the syndrome should increase its recognition and facilitate the appropriate treatment. These include buttock pain and tenderness with or without electrodiagnostic or neurologic signs. Pain is exacerbated in prolonged sitting. Specific physical findings are tenderness in the sciatic notch and buttock pain in flexion, adduction, and internal rotation (FADIR) of the hip. Imaging modalities are rarely helpful, but electrophysiologic studies should confirm the diagnosis, if not immediately, then certainly in a patient re-evaluation and as such should be sought persistently. Physical therapy aims at stretching the muscle and reducing the vicious cycle of pain and spasm. It is a mainstay of conservative treatment, usually enhanced by local injections. Surgery should be reserved as a last resort in case of failure of all conservative modalities. Piriformis syndrome may constitute up to 5% of cases of low back, buttock, and leg pain. Recognition and widespread appreciation of the clinical presentation improves its early detection and accurate treatment.

  18. Comparison of two stretching methods and optimization of stretching protocol for the piriformis muscle.

    PubMed

    Gulledge, Brett M; Marcellin-Little, Denis J; Levine, David; Tillman, Larry; Harrysson, Ola L A; Osborne, Jason A; Baxter, Blaise

    2014-02-01

    Piriformis syndrome is an uncommon diagnosis for a non-discogenic form of sciatica whose treatment has traditionally focused on stretching the piriformis muscle (PiM). Conventional stretches include hip flexion, adduction, and external rotation. Using three-dimensional modeling, we quantified the amount of (PiM) elongation resulting from two conventional stretches and we investigated by use of a computational model alternate stretching protocols that would optimize PiM stretching. Seven subjects underwent three CT scans: one supine, one with hip flexion, adduction, then external rotation (ADD stretch), and one with hip flexion, external rotation, then adduction (ExR stretch). Three-dimensional bone models were constructed from the CT scans. PiM elongation during these stretches, femoral neck inclination, femoral head anteversion, and trochanteric anteversion were measured. A computer program was developed to map PiM length over a range of hip joint positions and was validated against the measured scans. ExR and ADD stretches elongated the PiM similarly by approximately 12%. Femoral head and greater trochanter anteversion influenced PiM elongation. Placing the hip joints in 115° of hip flexion, 40° of external rotation and 25° of adduction or 120° of hip flexion, 50° of external rotation and 30° of adduction increased PiM elongation by 30-40% compared to conventional stretches (15.1 and 15.3% increases in PiM muscle length, respectively). ExR and ADD stretches elongate the PiM similarly and therefore may have similar clinical effectiveness. The optimized stretches led to larger increases in PiM length and may be more easily performed by some patients due to increased hip flexion.

  19. Piriformis Syndrome

    MedlinePlus

    ... Treatment Generally, treatment for the disorder begins with stretching exercises and massage. Anti-inflammatory drugs may be ... Treatment Generally, treatment for the disorder begins with stretching exercises and massage. Anti-inflammatory drugs may be ...

  20. Piriformis Syndrome

    MedlinePlus

    ... Health First Aid and Injury Prevention Crisis Situations Pets and Animals myhealthfinder Food and Nutrition Healthy Food Choices Weight ... Health First Aid and Injury Prevention Crisis Situations Pets and Animals myhealthfinder Food and Nutrition Healthy Food Choices Weight ...

  1. Portal radiation monitor

    DOEpatents

    Kruse, L.W.

    1982-03-23

    A portal radiation monitor combines .1% FAR with high sensitivity to special nuclear material. The monitor utilizes pulse shape discrimination, dynamic compression of the photomultiplier output and scintillators sized to maintain efficiency over the entire portal area.

  2. Portal radiation monitor

    DOEpatents

    Kruse, Lyle W.

    1985-01-01

    A portal radiation monitor combines 0.1% FAR with high sensitivity to special nuclear material. The monitor utilizes pulse shape discrimination, dynamic compression of the photomultiplier output and scintillators sized to maintain efficiency over the entire portal area.

  3. Evaluating Open Source Portals

    ERIC Educational Resources Information Center

    Goh, Dion; Luyt, Brendan; Chua, Alton; Yee, See-Yong; Poh, Kia-Ngoh; Ng, How-Yeu

    2008-01-01

    Portals have become indispensable for organizations of all types trying to establish themselves on the Web. Unfortunately, there have only been a few evaluative studies of portal software and even fewer of open source portal software. This study aims to add to the available literature in this important area by proposing and testing a checklist for…

  4. The Advent of Portals.

    ERIC Educational Resources Information Center

    Jackson, Mary E.

    2002-01-01

    Explains portals as tools that gather a variety of electronic information resources, including local library resources, into a single Web page. Highlights include cross-database searching; integration with university portals and course management software; the ARL (Association of Research Libraries) Scholars Portal Initiative; and selected vendors…

  5. Evaluating Open Source Portals

    ERIC Educational Resources Information Center

    Goh, Dion; Luyt, Brendan; Chua, Alton; Yee, See-Yong; Poh, Kia-Ngoh; Ng, How-Yeu

    2008-01-01

    Portals have become indispensable for organizations of all types trying to establish themselves on the Web. Unfortunately, there have only been a few evaluative studies of portal software and even fewer of open source portal software. This study aims to add to the available literature in this important area by proposing and testing a checklist for…

  6. [Piriformis muscle syndrome: etiology, pathogenesis, clinical manifestations, diagnosis, differential diagnosis and therapy].

    PubMed

    Grgić, Vjekoslav

    2013-01-01

    The term 'piriformis syndrome' (PS), introduced by Robinson in 1947, implies a group of signs and symptoms caused by piriformis muscle (PM) disorders. Since PM disorders lead to irritation/compression of the anatomic structures passing under its belly, the main clinical PS signs and symptoms are actually the clinical signs and symptoms of irritation/ compression of neural and vascular structures passing through the infrapiriform foramen: sciatic nerve/SN, inferior gluteal nerve, posterior femoral cutaneous nerve, pudendal nerve, inferior gluteal artery and vein and inferior pudendal artery and vein. The clinical picture is usually dominated by signs and symptoms of irritation/compression of SN (SN irritation --> low back and buttock pain, sciatica,paresthesias in distribution of SN; SN compression --> low back and buttock pain,sciatica, paresthesias and neurologic deficit in distribution of SN). Irritation/compression of other structures can result in the following signs and symptoms: inferior gluteal nerve --> atrophy of gluteal muscles; posterior femoral cutaneous nerve --> pain, paresthesias and sensory disturbances in the posterior thigh; pudendal nerve --> pudendal neuralgia, painful sexual intercourse (dyspareunia), sexual dysfunction, urination and defecation problems; inferior gluteal artery --> ischemic buttock pain; inferior pudendal artery --> ischemic pain in the area of external sex organs, perineum and rectum, sexual dysfunction, urination and defecation problems; inferior gluteal vein --> venous stasis in gluteal area; inferior pudendal vein --> venous stasis in external sex organs and rectum. Functional/non-organic and organic PM disorders can cause PS: spasm, shortening, hypertrophy, anatomic variations, edema, fibrosis, adhesions, hematoma, atrophy, cyst, bursitis, abscess, myositis ossificans, endometriosis, tumors (functional disorders: PM spasm and shortening). The most common causes for PS are PM spasm, shortening and hypertrophy and anatomic

  7. [Mexican consensus on portal hypertension].

    PubMed

    Narváez-Rivera, R M; Cortez-Hernández, C A; González-González, J A; Tamayo-de la Cuesta, J L; Zamarripa-Dorsey, F; Torre-Delgadillo, A; Rivera-Ramos, J F J; Vinageras-Barroso, J I; Muneta-Kishigami, J E; Blancas-Valencia, J M; Antonio-Manrique, M; Valdovinos-Andraca, F; Brito-Lugo, P; Hernández-Guerrero, A; Bernal-Reyes, R; Sobrino-Cossío, S; Aceves-Tavares, G R; Huerta-Guerrero, H M; Moreno-Gómez, N; Bosques-Padilla, F J

    2013-01-01

    The aim of the Mexican Consensus on Portal Hypertension was to develop documented guidelines to facilitate clinical practice when dealing with key events of the patient presenting with portal hypertension and variceal bleeding. The panel of experts was made up of Mexican gastroenterologists, hepatologists, and endoscopists, all distinguished professionals. The document analyzes themes of interest in the following modules: preprimary and primary prophylaxis, acute variceal hemorrhage, and secondary prophylaxis. The management of variceal bleeding has improved considerably in recent years. Current information indicates that the general management of the cirrhotic patient presenting with variceal bleeding should be carried out by a multidisciplinary team, with such an approach playing a major role in the final outcome. The combination of drug and endoscopic therapies is recommended for initial management; vasoactive drugs should be started as soon as variceal bleeding is suspected and maintained for 5 days. After the patient is stabilized, urgent diagnostic endoscopy should be carried out by a qualified endoscopist, who then performs the corresponding endoscopic variceal treatment. Antibiotic prophylaxis should be regarded as an integral part of treatment, started upon hospital admittance and continued for 5 days. If there is treatment failure, rescue therapies should be carried out immediately, taking into account that interventional radiology therapies are very effective in controlling refractory variceal bleeding. These guidelines have been developed for the purpose of achieving greater clinical efficacy and are based on the best evidence of portal hypertension that is presently available.

  8. Nitroglycerine effects on portal vein mechanics and oxidative stress in portal hypertension.

    PubMed

    Vujanac, Andreja; Jakovljevic, Vladimir; Djordjevic, Dusica; Zivkovic, Vladimir; Stojkovic, Mirjana; Celikovic, Dragan; Andjelkovic, Nebojsa; Skevin, Aleksandra Jurisic; Djuric, Dragan

    2012-01-28

    Тo examine the effects of nitroglycerine on portal vein haemodynamics and oxidative stress in patients with portal hypertension. Thirty healthy controls and 39 patients with clinically verified portal hypertension and increased vascular resistance participated in the study. Liver diameters, portal diameters and portal flow velocities were recorded using color flow imaging/pulsed Doppler detection. Cross-section area, portal flow and index of vascular resistance were calculated. In collected blood samples, superoxide anion radical (O(2) (-)), hydrogen peroxide (H(2)O(2)), index of lipid peroxidation (measured as TBARS) and nitric oxide (NO) as a marker of endothelial response (measured as nitrite-NO(2) (-)) were determined. Time-dependent analysis was performed at basal state and in 10th and 15th min after nitroglycerine (sublingual 0.5 mg) administration. Oxidative stress parameters changed significantly during the study. H(2)O(2) decreased at the end of study, probably via O(2) (-) mediated disassembling in Haber Weiss and Fenton reaction; O(2) (-) increased significantly probably due to increased diameter and tension and decreased shear rate level. Consequently O(2) (-) and H(2)O(2) degradation products, like hydroxyl radical, initiated lipid peroxidation. Increased blood flow was to some extent lower in patients than in controls due to double paradoxes, flow velocity decreased, shear rate decreased significantly indicating non Newtonian characteristics of portal blood flow. This pilot study could be a starting point for further investigation and possible implementation of some antioxidants in the treatment of portal hypertension.

  9. Noncirrhotic portal hypertension.

    PubMed

    Rajekar, Harshal; Vasishta, Rakesh K; Chawla, Yogesh K; Dhiman, Radha K

    2011-09-01

    Portal hypertension is characterized by an increase in portal pressure (> 10 mmHg) and could be a result of cirrhosis of the liver or of noncirrhotic diseases. When portal hypertension occurs in the absence of liver cirrhosis, noncirrhotic portal hypertension (NCPH) must be considered. The prognosis of this disease is much better than that of cirrhosis. Noncirrhotic diseases are the common cause of portal hypertension in developing countries, especially in Asia. NCPH is a heterogeneous group of diseases that is due to intrahepatic or extrahepatic etiologies. In general, the lesions in NCPH are vascular in nature and can be classified based on the site of resistance to blood flow. In most cases, these disorders can be explained by endothelial cell lesions, intimal thickening, thrombotic obliterations, or scarring of the intrahepatic portal or hepatic venous circulation. Many different conditions can determine NCPH through the association of these various lesions in various degrees. Many clinical manifestations of NCPH result from the secondary effects of portal hypertension. Patients with NCPH present with upper gastrointestinal bleeding, splenomegaly, ascites after gastrointestinal bleeding, features of hypersplenism, growth retardation, and jaundice due to portal hypertensive biliopathy. Other sequelae include hyperdynamic circulation, pulmonary complications, and other effects of portosystemic collateral circulation like portosystemic encephalopathy. At present, pharmacologic and endoscopic treatments are the treatments of choice for portal hypertension. The therapy of all disorders causing NCPH involves the reduction of portal pressure by pharmacotherapy or portosystemic shunting, apart from prevention and treatment of complications of portal hypertension.

  10. Noncirrhotic Portal Hypertension

    PubMed Central

    Rajekar, Harshal; Vasishta, Rakesh K; Chawla, Yogesh K; Dhiman, Radha K

    2011-01-01

    Portal hypertension is characterized by an increase in portal pressure (> 10 mmHg) and could be a result of cirrhosis of the liver or of noncirrhotic diseases. When portal hypertension occurs in the absence of liver cirrhosis, noncirrhotic portal hypertension (NCPH) must be considered. The prognosis of this disease is much better than that of cirrhosis. Noncirrhotic diseases are the common cause of portal hypertension in developing countries, especially in Asia. NCPH is a heterogeneous group of diseases that is due to intrahepatic or extrahepatic etiologies. In general, the lesions in NCPH are vascular in nature and can be classified based on the site of resistance to blood flow. In most cases, these disorders can be explained by endothelial cell lesions, intimal thickening, thrombotic obliterations, or scarring of the intrahepatic portal or hepatic venous circulation. Many different conditions can determine NCPH through the association of these various lesions in various degrees. Many clinical manifestations of NCPH result from the secondary effects of portal hypertension. Patients with NCPH present with upper gastrointestinal bleeding, splenomegaly, ascites after gastrointestinal bleeding, features of hypersplenism, growth retardation, and jaundice due to portal hypertensive biliopathy. Other sequelae include hyperdynamic circulation, pulmonary complications, and other effects of portosystemic collateral circulation like portosystemic encephalopathy. At present, pharmacologic and endoscopic treatments are the treatments of choice for portal hypertension. The therapy of all disorders causing NCPH involves the reduction of portal pressure by pharmacotherapy or portosystemic shunting, apart from prevention and treatment of complications of portal hypertension. PMID:25755321

  11. Coastal and Marine Geology Program video and photograph portal

    USGS Publications Warehouse

    Golden, Nadine E.; Ackerman, Seth D.

    2015-01-01

    Search all Coastal and Marine Geology Program imagery by selecting "Explore Data Layers." Or select Pacific, Atlantic, or Gulf Coast to enter the portal by region. Or start with the tutorial then dive in!

  12. Creative Problem-Solving Software and Portals

    ERIC Educational Resources Information Center

    Hijazi, Sam; Smith, M. Leigh; Alvarado-Vazquez, Edgardo

    2004-01-01

    The available research dealing with information technology and creativity has been limited. There is an obvious need to explore this area. Fortunately there is some available software and portals that have undertaken this important topic. This research starts by discussing the value of information technology as a major input to sustain and…

  13. Earthdata Developer Portal poster

    NASA Astrophysics Data System (ADS)

    Plofchan, P.

    2016-12-01

    A common theme at community conferences in the Earth science domain is the need for more integration with related services, clearer documentation for services available, and a general simplification of what it takes to leverage existing tools so that setup and administration time can be minimized and time spent researching can be maximized. NASA's Earthdata Developer Portal (EDP) is the newly-created central location for documentation related to interacting with services offered by the EOSDIS community. The EDP will provide technical documentation for APIs, process documentation that provides real-world examples of how to use existing APIs in the real world, release notes for applications and services so that the entire community can stay up to date on recent updates, and best practice suggestions to improve implementation of both front-end and back-end services. Application and service owners will own their documentation while the EDP will ingest the documentation, serve it up in an interface using both industry standard tools, such as Swagger, and custom "adapters". The content is then styled to ensure consistency with other documentation found throughout the site and will be made searchable from a single location. "Getting Started" paths will also provide those users new to the space a simple path to follow to perform common tasks such as "searching and getting data" or "hosting an application on the Earthdata platform."

  14. Prepancreatic preduodenal portal vein.

    PubMed

    Lal, N S; Kuruvila, A P; Natesh, P B; Koshy, M M; Anandakumar, M

    1992-10-01

    We report a 17 year old girl with prepancreatic and preduodenal portal vein. She presented with recurrent vomiting. Barium study revealed malrotation of the gut. Laparotomy confirmed malrotation of the gut with a prepancreatic and preduodenal portal vein. The patient is asymptomatic after gastrojejunostomy and vagotomy.

  15. Portal Vein Thrombosis

    PubMed Central

    Mallet, Thierry; Soltys, Remigiusz; Loarte, Pablo

    2015-01-01

    Portal vein thrombosis (PVT) is the blockage or narrowing of the portal vein by a thrombus. It is relatively rare and has been linked with the presence of an underlying liver disease or prothrombotic disorders. We present a case of a young male who presented with vague abdominal symptoms for approximately one week. Imaging revealed the presence of multiple nonocclusive thrombi involving the right portal vein, the splenic vein, and the left renal vein, as well as complete occlusion of the left portal vein and the superior mesenteric vein. We discuss pathogenesis, clinical presentation, and management of both acute and chronic thrombosis. The presence of PVT should be considered as a clue for prothrombotic disorders, liver disease, and other local and general factors that must be carefully investigated. It is hoped that this case report will help increase awareness of the complexity associated with portal vein thrombosis among the medical community. PMID:25802795

  16. Portal Vein Stenting for Portal Biliopathy with Jaundice.

    PubMed

    Hyun, Dongho; Park, Kwang Bo; Lim, Seong Joo; Hwang, Jin Ho; Sinn, Dong Hyun

    2016-04-01

    Portal biliopathy refers to obstruction of the bile duct by dilated peri- or para-ductal collateral channels following the main portal vein occlusion from various causes. Surgical shunt operation or endoscopic treatment has been reported. Herein, we report a case of portal biliopathy that was successfully treated by interventional portal vein recanalization.

  17. Portal vein thrombosis.

    PubMed

    Chawla, Yogesh K; Bodh, Vijay

    2015-03-01

    Portal vein thrombosis is an important cause of portal hypertension. PVT occurs in association with cirrhosis or as a result of malignant invasion by hepatocellular carcinoma or even in the absence of associated liver disease. With the current research into its genesis, majority now have an underlying prothrombotic state detectable. Endothelial activation and stagnant portal blood flow also contribute to formation of the thrombus. Acute non-cirrhotic PVT, chronic PVT (EHPVO), and portal vein thrombosis in cirrhosis are the three main variants of portal vein thrombosis with varying etiological factors and variability in presentation and management. Procoagulant state should be actively investigated. Anticoagulation is the mainstay of therapy for acute non-cirrhotic PVT, with supporting evidence for its use in cirrhotic population as well. Chronic PVT (EHPVO) on the other hand requires the management of portal hypertension as such and with role for anticoagulation in the setting of underlying prothrombotic state, however data is awaited in those with no underlying prothrombotic states. TIPS and liver transplant may be feasible even in the setting of PVT however proper selection of candidates and type of surgery is warranted. Thrombolysis and thrombectomy have some role. TARE is a new modality for management of HCC with portal vein invasion.

  18. Portal Vein Thrombosis

    PubMed Central

    Chawla, Yogesh K.; Bodh, Vijay

    2015-01-01

    Portal vein thrombosis is an important cause of portal hypertension. PVT occurs in association with cirrhosis or as a result of malignant invasion by hepatocellular carcinoma or even in the absence of associated liver disease. With the current research into its genesis, majority now have an underlying prothrombotic state detectable. Endothelial activation and stagnant portal blood flow also contribute to formation of the thrombus. Acute non-cirrhotic PVT, chronic PVT (EHPVO), and portal vein thrombosis in cirrhosis are the three main variants of portal vein thrombosis with varying etiological factors and variability in presentation and management. Procoagulant state should be actively investigated. Anticoagulation is the mainstay of therapy for acute non-cirrhotic PVT, with supporting evidence for its use in cirrhotic population as well. Chronic PVT (EHPVO) on the other hand requires the management of portal hypertension as such and with role for anticoagulation in the setting of underlying prothrombotic state, however data is awaited in those with no underlying prothrombotic states. TIPS and liver transplant may be feasible even in the setting of PVT however proper selection of candidates and type of surgery is warranted. Thrombolysis and thrombectomy have some role. TARE is a new modality for management of HCC with portal vein invasion. PMID:25941431

  19. Portal vein thrombosis.

    PubMed

    Basit, Syed Abdul; Stone, Christian D; Gish, Robert

    2015-02-01

    Portal vein thrombosis (PVT) is a rare event in the general medical setting that commonly complicates cirrhosis with portal hypertension, and can also occur with liver tumors. The diagnosis is often incidental when a thrombus is found in the portal vein on imaging tests. However, PVT may also present with clinical symptoms and can progress to life-threatening complications of ischemic hepatitis, liver failure, and/or small intestinal infarction. This article reviews the pathophysiology of this disorder, with a major focus on PVT in patients with cirrhosis, and presents detailed guidelines on optimal diagnostic and therapeutic strategies. Copyright © 2015 Elsevier Inc. All rights reserved.

  20. The Cosmos Portal and the IYA2009 Project

    NASA Astrophysics Data System (ADS)

    Haisch, Bernard M.; Sims, M.; Lindblom, J.

    2009-01-01

    In 2007 the non-profit Digital Universe Foundation (DUF) launched the Earth Portal as a comprehensive resource for timely, objective, science-based information about the environment. There are currently over 1000 scholars from 60 countries engaged in this rapidly growing web-based collaboration. The Cosmos Portal is the second major DUF initiative (digitaluniverse.net/cosmos). In support of the IYA2009 effort, the Cosmos Portal is recruiting astronomy professionals to make use of easy online tools to publish articles, blogs, news items, image galleries, class notes, lectures, powerpoint presentations, links to other high quality websites or other educational material. In parallel we intend to bring hundreds of amateur astronomy organizations and thousands of amateur astronomers and telescope makers together in a community of portals (digitaluniverse.net/cosmoscommunity). This will allow vibrant online collaboration and information sharing. We encourage you to start a portal on your favorite topic or join an existing topic as a contributor.

  1. Space Development Grid Portal

    NASA Technical Reports Server (NTRS)

    Vaziri, Arsi

    2004-01-01

    This viewgraph presentation provides information on the development of a portal to provide secure and distributed grid computing for Payload Operations Integrated Center and Mission Control Center ground services.

  2. The Start of Head Start

    ERIC Educational Resources Information Center

    Neugebauer, Roger

    2010-01-01

    The creation of the Head Start program occurred at break-neck speed with many dramatic turns and many colorful players. No one tells the story better than Edward Zigler in "Head Start: The Inside Story of America's Most Successful Educational Experiment"--a detailed and personal, behind the scenes look at the program's inception. From this…

  3. The Start of Head Start

    ERIC Educational Resources Information Center

    Neugebauer, Roger

    2010-01-01

    The creation of the Head Start program occurred at break-neck speed with many dramatic turns and many colorful players. No one tells the story better than Edward Zigler in "Head Start: The Inside Story of America's Most Successful Educational Experiment"--a detailed and personal, behind the scenes look at the program's inception. From this…

  4. Antegrade versus retrograde nailing techniques and trochanteric versus piriformis intramedullary nailing entry points for femoral shaft fractures: a systematic review and meta-analysis

    PubMed Central

    Hussain, Nasir; Hussain, Farrah Naz; Sermer, Corey; Kamdar, Hera; Schemitsch, Emil H.; Sternheim, Amir; Kuzyk, Paul

    2017-01-01

    Background There are several different techniques commonly used to perform intramedullary (IM) nailing of the femur to fix femoral fractures. We sought to identify significant differences in outcomes of studies comparing 1) trochanteric and piriformis entry and 2) antegrade and retrograde entry in IM nailing of the femur. Methods We searched MEDLINE, Cochrane and Embase databases and the Orthopaedic Trauma Association and American Academy of Orthopaedic Surgeons websites for comparative studies published from inception to November 2015. Criteria used to select articles for detailed review included use of antegrade and retrograde entry point or use of trochanteric and piriformis entry point for IM nailing of the femur in adult patients. Functional and technical outcomes were extracted from accepted studies. Results We identified 483 potential studies, of which 52 were eligible. Of these, we included 13 publications and 2 abstracts (2 level I, 7 level II and 6 level III studies). Trochanteric entry significantly reduced operative duration by 14 min compared with piriformis entry (p = 0.030). Retrograde nailing had a greater risk of postoperative knee pain than antegrade nailing (p = 0.05). On the other hand, antegrade nailing had significantly more postoperative hip pain (p = 0.003) and heterotopic ossification (p < 0.001) than retrograde nailing. No significant differences in functional outcomes were observed. Conclusion Although some significant differences were found, the varying quality of studies made recommendation difficult. Our meta-analysis did not confirm superiority of either antegrade over retrograde or trochanteric over piriformis entry for IM nailing of the femur. Level of evidence Level III therapeutic. PMID:28234586

  5. Radioisotopic flow scanning for portal blood flow and portal hypertension

    SciTech Connect

    Hesdorffer, C.S.; Bezwoda, W.R.; Danilewitz, M.D.; Esser, J.D.; Tobias, M.

    1987-08-01

    The use of a simple, noninvasive, isotope scanning technique for the determination of relative portal blood flow and detection of portal hypertension is described. Using this technique the presence of portal hypertension was demonstrated in seven of nine patients known to have elevated portal venous pressure. By contrast, esophageal varices were demonstrated in only five of these patients, illustrating the potential value of the method. Furthermore, this technique has been adapted to the study of portal blood flow in patients with myeloproliferative disorders with splenomegaly but without disturbances in hepatic architecture. Results demonstrate that the high relative splenic flow resulting from the presence of splenomegaly may in turn be associated with elevated relative portal blood flow and portal hypertension. The theoretic reasons for the development of flow-related portal hypertension and its relationship to splenic blood flow are discussed.

  6. Perspective view of south portal. Note how portal angles about ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Perspective view of south portal. Note how portal angles about 5' forward over the approach. - Red Oak Creek Bridge, Spanning (Big) Red Oak Creek, Huel Brown Road (Covered Bridge Road), Woodbury, Meriwether County, GA

  7. 8. EAST PORTAL AND DECK VIEW, FROM EAST, SHOWING PORTAL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. EAST PORTAL AND DECK VIEW, FROM EAST, SHOWING PORTAL CONFIGURATION AND LATERAL BRACING, STEEL MESH FLOOR, METAL RAILINGS, AND PORTION OF EAST APPROACH - Glendale Road Bridge, Spanning Deep Creek Lake on Glendale Road, McHenry, Garrett County, MD

  8. 7. WEST PORTAL AND DECK VIEW, FROM WEST, SHOWING PORTAL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. WEST PORTAL AND DECK VIEW, FROM WEST, SHOWING PORTAL CONFIGURATION AND LATERAL BRACING, STEEL MESH FLOOR, AND METAL RAILINGS - Glendale Road Bridge, Spanning Deep Creek Lake on Glendale Road, McHenry, Garrett County, MD

  9. Perspective looking due north, south portal. Note how the portal ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Perspective looking due north, south portal. Note how the portal angles out over the approach. - Swann Bridge, Spanning Locust Fork of Black Warrior River, Swann Bridge Road, Cleveland, Blount County, AL

  10. 17. VIEW OF NORTH BRIDGE PORTAL, SHOWING ORNAMENTAL UPPER PORTAL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    17. VIEW OF NORTH BRIDGE PORTAL, SHOWING ORNAMENTAL UPPER PORTAL STRUT AND GEOMETRIC DECORATED GUSSET. FACING NORTHEAST. - Coverts Crossing Bridge, Spanning Mahoning River along Township Route 372 (Covert Road), New Castle, Lawrence County, PA

  11. 15. VIEW OF SOUTH BRIDGE PORTAL, SHOWING ORNAMENTAL UPPER PORTAL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. VIEW OF SOUTH BRIDGE PORTAL, SHOWING ORNAMENTAL UPPER PORTAL STRUT AND GUSSETS (FLORAL MOTIF). FACING SOUTHWEST. - Coverts Crossing Bridge, Spanning Mahoning River along Township Route 372 (Covert Road), New Castle, Lawrence County, PA

  12. Elevation, west portal. Sign on portal reads Watson Mill Bridge, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Elevation, west portal. Sign on portal reads Watson Mill Bridge, est. 1885. - Watson Mill Bridge, Spanning South Fork Broad River, Watson Mill Road, Watson Mill Bridge State Park, Comer, Madison County, GA

  13. 1. VIEW NORTH OF GILBERT BRIDGE, PORTAL AND PORTAL CONNECTIONS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. VIEW NORTH OF GILBERT BRIDGE, PORTAL AND PORTAL CONNECTIONS AND BRACING, TRAFFIC DECK - Gilbert Bridge, U.S. Route 52, spanning Guyandotte River near confluence of Gilbert Creek, Gilbert, Mingo County, WV

  14. User Requirements Based Development of a Web Portal for Chronic Patients.

    PubMed

    Kopanitsa, Georgy

    2017-01-01

    In the current study, we tried to identify practices that help overcoming data entering and operational barriers, and involve patients and doctors in the development process to improve the acceptance of Web portals for chronic patients. This paper presents a follow up project implementing a Web portal for chronic patients considering previously studied barriers and opportunities. The following methods were applied to facilitate the acceptance of the portal: 1) a joint use case definition and discussion session before starting the development; 2) involvement of the users in prototyping the portal; 3) training of doctors and patients together before the implementation. During the first week of the portal's operation we have measured the number of data transactions and the number of active users to compare it with previous experience. The first weeks of operating the portal, we could observe an active contribution of doctors and patients, who submitted vital signs data and recommendations to the portal.

  15. The Astrostatistics and Astroinformatics Portal

    NASA Astrophysics Data System (ADS)

    Feigelson, Eric; Hilbe, J. M.

    2014-01-01

    The Astrostatistics and Astroinformatics Portal (ASAIP, http://asaip.psu.edu) is a Web resource started in 2012 to foster research into advanced methodologies for astronomical research, and to promulgate such methods into the broader astronomy community. It provides searchable abstracts to Recent Papers in the field, several discussion Forums, various resources for researchers, brief Articles by experts, lists of Meetings, and access to various Web resources such as on-line courses, books and blogs. The material can be electronically searched. The site will be used for public outreach by organizations associated with the AAS, IAU, ISI (International Statistical Institute), and LSST. ASAIP has nearly 700 members who can contribute material, and its resources are readable by the general Web public. This presentation gives examples of recent ASAIP entries and encourages AAS members to use its resources.

  16. The NOAO NVO Portal

    NASA Astrophysics Data System (ADS)

    Miller, C. J.; Gasson, D.; Fuentes, E.

    2007-10-01

    The NOAO NVO Portal is a web application for one-stop discovery, analysis, and access to VO-compliant imaging data and services. The current release allows for GUI-based discovery of nearly a half million images from archives such as the NOAO Science Archive, the Hubble Space Telescope WFPC2 and ACS instruments, XMM-Newton, Chandra, and ESO's INT Wide-Field Survey, among others. The NOAO Portal allows users to view image metadata, footprint wire-frames, FITS image previews, and provides one-click access to science quality imaging data throughout the entire sky via the Firefox web browser (i.e., no applet or code to download). Users can stage images from multiple archives at the NOAO NVO Portal for quick and easy bulk downloads. The NOAO NVO Portal also provides simplified and direct access to VO analysis services, such as the WESIX catalog generation service. We highlight the features of the NOAO NVO Portal (http://nvo.noao.edu).

  17. Pregnancy with Portal Hypertension

    PubMed Central

    Aggarwal, Neelam; Negi, Neha; Aggarwal, Aakash; Bodh, Vijay; Dhiman, Radha K.

    2014-01-01

    Even though pregnancy is rare with cirrhosis and advanced liver disease, but it may co-exist in the setting of non-cirrhotic portal hypertension as liver function is preserved but whenever encountered together is a complex clinical dilemma. Pregnancy in a patient with portal hypertension presents a special challenge to the obstetrician as so-called physiological hemodynamic changes associated with pregnancy, needed for meeting demands of the growing fetus, worsen the portal hypertension thereby putting mother at risk of potentially life-threatening complications like variceal hemorrhage. Risks of variceal bleed and hepatic decompensation increase many fold during pregnancy. Optimal management revolves round managing the portal hypertension and its complications. Thus management of such cases requires multi-speciality approach involving obstetricians experienced in dealing with high risk cases, hepatologists, anesthetists and neonatologists. With advancement in medical field, pregnancy is not contra-indicated in these women, as was previously believed. This article focuses on the different aspects of pregnancy with portal hypertension with special emphasis on specific cause wise treatment options to decrease the variceal bleed and hepatic decompensation. Based on extensive review of literature, management from pre-conceptional period to postpartum is outlined in order to have optimal maternal and perinatal outcomes. PMID:25755552

  18. Target detection portal

    DOEpatents

    Linker, Kevin L.; Brusseau, Charles A.

    2002-01-01

    A portal apparatus for screening persons or objects for the presence of trace amounts of target substances such as explosives, narcotics, radioactive materials, and certain chemical materials. The portal apparatus can have a one-sided exhaust for an exhaust stream, an interior wall configuration with a concave-shape across a horizontal cross-section for each of two facing sides to result in improved airflow and reduced washout relative to a configuration with substantially flat parallel sides; air curtains to reduce washout; ionizing sprays to collect particles bound by static forces, as well as gas jet nozzles to dislodge particles bound by adhesion to the screened person or object. The portal apparatus can be included in a detection system with a preconcentrator and a detector.

  19. The EBI enzyme portal.

    PubMed

    Alcántara, Rafael; Onwubiko, Joseph; Cao, Hong; Matos, Paula de; Cham, Jennifer A; Jacobsen, Jules; Holliday, Gemma L; Fischer, Julia D; Rahman, Syed Asad; Jassal, Bijay; Goujon, Mikael; Rowland, Francis; Velankar, Sameer; López, Rodrigo; Overington, John P; Kleywegt, Gerard J; Hermjakob, Henning; O'Donovan, Claire; Martín, María Jesús; Thornton, Janet M; Steinbeck, Christoph

    2013-01-01

    The availability of comprehensive information about enzymes plays an important role in answering questions relevant to interdisciplinary fields such as biochemistry, enzymology, biofuels, bioengineering and drug discovery. At the EMBL European Bioinformatics Institute, we have developed an enzyme portal (http://www.ebi.ac.uk/enzymeportal) to provide this wealth of information on enzymes from multiple in-house resources addressing particular data classes: protein sequence and structure, reactions, pathways and small molecules. The fact that these data reside in separate databases makes information discovery cumbersome. The main goal of the portal is to simplify this process for end users.

  20. The EBI enzyme portal

    PubMed Central

    Alcántara, Rafael; Onwubiko, Joseph; Cao, Hong; de Matos, Paula; Cham, Jennifer A.; Jacobsen, Jules; Fischer, Julia D.; Rahman, Syed Asad; Jassal, Bijay; Goujon, Mikael; Rowland, Francis; Velankar, Sameer; López, Rodrigo; Overington, John P.; Kleywegt, Gerard J.; Hermjakob, Henning; O’Donovan, Claire; Martín, María Jesús; Thornton, Janet M.; Steinbeck, Christoph

    2013-01-01

    The availability of comprehensive information about enzymes plays an important role in answering questions relevant to interdisciplinary fields such as biochemistry, enzymology, biofuels, bioengineering and drug discovery. At the EMBL European Bioinformatics Institute, we have developed an enzyme portal (http://www.ebi.ac.uk/enzymeportal) to provide this wealth of information on enzymes from multiple in-house resources addressing particular data classes: protein sequence and structure, reactions, pathways and small molecules. The fact that these data reside in separate databases makes information discovery cumbersome. The main goal of the portal is to simplify this process for end users. PMID:23175605

  1. Start Young!

    ERIC Educational Resources Information Center

    Rubin, Penni

    2002-01-01

    Discusses the importance of early interest in science and how effective it is on career choice in adult stages of life. Recommends starting mathematics and science activities in preschool and kindergarten. Describes how to create a career-oriented learning center in the classroom with examples of kitchen chemistry, nutrition/botany, zoology,…

  2. Start Young!

    ERIC Educational Resources Information Center

    Rubin, Penni

    2002-01-01

    Discusses the importance of early interest in science and how effective it is on career choice in adult stages of life. Recommends starting mathematics and science activities in preschool and kindergarten. Describes how to create a career-oriented learning center in the classroom with examples of kitchen chemistry, nutrition/botany, zoology,…

  3. Ten Keys to the Portal

    ERIC Educational Resources Information Center

    Schaffhauser, Dian

    2011-01-01

    Successful web portals help users stay informed, in touch, and up to speed. They are also a telling window into the efficiency of one's institution. To develop a cutting-edge portal takes planning, communication, and research. In this article, the author presents and discusses 10 keys to portal success: (1) make critical info visible; (2) make the…

  4. A Librarian's Perspective on Portals.

    ERIC Educational Resources Information Center

    Little, John R.

    2001-01-01

    Explains what Web portals are and discusses the benefits of a strategic alliance in portal building among campus information technology, libraries, and other campus groups. Suggests that by using robust channel capabilities, an enterprise portal can provide content from various parts of the university and promote resource discovery. (EV)

  5. Ten Keys to the Portal

    ERIC Educational Resources Information Center

    Schaffhauser, Dian

    2011-01-01

    Successful web portals help users stay informed, in touch, and up to speed. They are also a telling window into the efficiency of one's institution. To develop a cutting-edge portal takes planning, communication, and research. In this article, the author presents and discusses 10 keys to portal success: (1) make critical info visible; (2) make the…

  6. Total portal robotic pneumonectomy.

    PubMed

    Rodriguez, Jose R

    2013-09-01

    Robotic pulmonary lobectomies have been reported to be technically and oncologically achievable; however, only three robotic pneumonectomy cases have been described. Two of them used a mini thoracotomy. We describe one case of a total portal robotic pneumonectomy without utility incision. We describe the step-by-step process.

  7. Metadata requirements for portals.

    PubMed

    Benson, Tim

    2015-01-01

    Consensus around the requirements for metadata in patient and clinical portals would provide a sound basis for the adoption of standards. We propose a set of requirements for metadata in a way that is generic and platform independent. These requirements cover both Clinical Documents and Clinical Statements, addressing the what, who, when and where of each item.

  8. Press Start

    NASA Astrophysics Data System (ADS)

    Harteveld, Casper

    This level sets the stage for the design philosophy called “Triadic Game Design” (TGD). This design philosophy can be summarized with the following sentence: it takes two to tango, but it takes three to design a meaningful game or a game with a purpose. Before the philosophy is further explained, this level will first delve into what is meant by a meaningful game or a game with a purpose. Many terms and definitions have seen the light and in this book I will specifically orient at digital games that aim to have an effect beyond the context of the game itself. Subsequently, a historical overview is given of the usage of games with a serious purpose which starts from the moment we human beings started to walk on our feet till our contemporary society. It turns out that we have been using games for all kinds of non-entertainment purposes for already quite a long time. With this introductory material in the back of our minds, I will explain the concept of TGD by means of a puzzle. After that, the protagonist of this book, the game Levee Patroller, is introduced. Based on the development of this game, the idea of TGD, which stresses to balance three different worlds, the worlds of Reality, Meaning, and Play, came into being. Interested? Then I suggest to quickly “press start!”

  9. Starting motor

    SciTech Connect

    Tanaka, T.; Hamano, I

    1989-05-23

    This patent describes a starting motor having a housing, planetary reduction gears including an internal gear in the housing. The improvement consists of an elastic member having a first annular portion mounted in engagement with a fixed annular member of the housing and a plurality of protruding axially extending elastic portions providing a corrugated surface pressed into engagement with an end portion of the internal gear, the elastic member being sandwiched between the internal gear and the housing member, the protruding axially extending elastic portions providing resilient means which flex and incline circumferentially under turning force from the internal gear and exert reactive thrust on the internal gear elastically so that the frictional force at the abutting surfaces of the protruding portions holds the internal gear in resilient engagement with the elastic member and the resilient means acts as a buffer to absorb rotary impact force developing in the planetary reduction gears.

  10. Portal Annular Pancreas

    PubMed Central

    Harnoss, Jonathan M.; Harnoss, Julian C.; Diener, Markus K.; Contin, Pietro; Ulrich, Alexis B.; Büchler, Markus W.; Schmitz-Winnenthal, Friedrich H.

    2014-01-01

    Abstract Portal annular pancreas (PAP) is an asymptomatic congenital pancreas anomaly, in which portal and/or mesenteric veins are encased by pancreas tissue. The aim of the study was to determine the role of PAP in pancreatic surgery as well as its management and potential complication, specifically, postoperative pancreatic fistula (POPF). On the basis of a case report, the MEDLINE and ISI Web of Science databases were systematically reviewed up to September 2012. All articles describing a case of PAP were considered. In summary, 21 studies with 59 cases were included. The overall prevalence of PAP was 2.4% and the patients' mean (SD) age was 55.9 (16.2) years. The POPF rate in patients with PAP (12 pancreaticoduodenectomies and 3 distal pancreatectomies) was 46.7% (in accordance with the definition of the International Study Group of Pancreatic Surgery). Portal annular pancreas is a quite unattended pancreatic variant with high prevalence and therefore still remains a clinical challenge to avoid postoperative complications. To decrease the risk for POPF, attentive preoperative diagnostics should also focus on PAP. In pancreaticoduodenectomy, a shift of the resection plane to the pancreas tail should be considered; in extensive pancreatectomy, coverage of the pancreatic remnant by the falciform ligament could be a treatment option. PMID:25207658

  11. Transjugular Portal Venous Stenting in Inflammatory Extrahepatic Portal Vein Stenosis

    SciTech Connect

    Schaible, Rolf; Textor, Jochen; Decker, Pan; Strunk, Holger; Schild, Hans

    2002-12-15

    We report the case of a 37-year-old man with necrotizing pancreatitis associated with inflammatory extrahepatic portal vein stenosis and progressive ascites. Four months after the acute onset, when no signs of infection were present, portal decompression was performed to treat refractory ascites. Transjugulartranshepatic venoplasty failed to dilate the stenosis in the extrahepatic portion of the portal vein sufficiently. Therefore a Wallstent was implanted, resulting in almost normal diameter of the vessel. In follow-up imaging studies the stent and the portal vein were still patent 12 months after the intervention and total resolution of the ascites was observed.

  12. Effect of Portal Venous Blood Flow Diversion on Portal Pressure

    PubMed Central

    Zimmon, David S.; Kessler, Richard E.

    1980-01-01

    To anticipate the hepatic vascular response to portacaval anastomosis, we studied portal pressure during diversion of portal blood through a temporary extracorporeal umbilical vein to saphenous vein shunt. The relationship of portal pressure to shunted flow was approximately linear. In five schistosomiasis patients (controls) portal diversion to 1,250 ml/min gave portal pressure-shunted flow curve slopes ranging from 0.13 to 0.57 cm water/100 ml per min (0.31±0.18, mean±SD). In 17 cirrhotic patients with portal hypertension a continuum of slopes was observed from within mean±2 SD of control (type A) to larger slopes (type B) indicating failure of portal pressure regulation. When portal flow was augmented by shunting from saphenous vein to portal vein, cirrhotic patients who had slopes less than mean±2 SD of controls during diversion (type A) exhibited a compliant system with small increases in portal pressure, whereas type B patients had significantly greater pressure increases. Selective investigations suggested that changes in portal pressure provoked compensatory changes in hepatic arterial blood flow that tended to maintain portal pressure at a set point. Type B patients demonstrated failure of this mechanism to varying degrees. After end-to-side portacaval shunt, seven type A cirrhotic patients maintained residual intrahepatic venous pressure unchanged from prior portal pressure, whereas six type B patients had a significant decrease. Residual intrahepatic venous pressure was measured after portacaval shunt in 40 cirrhotic patients who were followed for as long as 9 yr (median survival 4.0 yr). The 13 patients who developed chronic encephalopathy had significantly lower pressure (21.1±4.4 cm, mean±SD) and shorter survival (median 0.6 yr) than the other 27 patients (32.6±5.3 cm, 5.0 yr). The preoperative estimation of portal pressure-diverted portal flow curve slope anticipates the hepatic vascular response to portacaval anastomosis and identifies a

  13. 29 CFR 785.24 - Principles noted in Portal-to-Portal Bulletin.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Principles noted in Portal-to-Portal Bulletin. 785.24... of Principles Preparatory and Concluding Activities § 785.24 Principles noted in Portal-to-Portal Bulletin. In November, 1947, the Administrator issued the Portal-to-Portal Bulletin (part 790 of...

  14. Piriformis Syndrome: Long-Term Follow-up in Patients Treated with Percutaneous Injection of Anesthetic and Corticosteroid Under CT Guidance

    SciTech Connect

    Masala, Salvatore Crusco, Sonia Meschini, Alessandro Taglieri, Amedeo Calabria, Eros Simonetti, Giovanni

    2012-04-15

    Purpose: This study was designed to evaluate the efficacy of CT-guided injection of anesthetic and corticosteroid for the treatment of pain in patients with piriformis syndrome unresponsive to conservative treatment. Methods: We enrolled 23 patients with piriformis syndrome, proposing a percutaneous intramuscular injection of methylprednisone-lidocaine. Among them, 13 patients accepted and 10 refused to undergo the procedure; the second group was used as a control group. Clinical evaluation was performed with four maneuvers (Lasegue sign, FAIR test, Beatty and Freiberg maneuver) and a VAS questionnaire before the injection, after 5-7 days, and after 2 months. A telephonic follow-up was conducted to 3, 6, and 12 months. Results: Procedural success was achieved in all patients who were treated without any complications. After 2 months, among 13 treated subjects, 2 of 13 patients showed positivity to FAIR test (hip flexion, adduction, and internal rotation), 2 of 13 were positive to Lasegue sign, and the Beatty maneuver was positive in 1 patient. Patients who underwent conservative treatment were positive respectively in 7 of 10 (p = 0.01), 6 of 10 (p = 0.03), and 6 of 10 (p = 0.01). The VAS score showed a difference between patients treated with percutaneous approach and those managed with conservative therapy at the baseline evaluation (p = 0.04), after 2 months (p = 0.02), and 12 months (p = 0.002). We observed a significant reduction in pain for patients treated percutaneously, who were evaluated with the VAS scale at 5-7 days, 2 months, 3, 6, and 12 months (p < 0.001). Conclusions: Our findings suggested potential benefit from the percutaneous injection of anesthetics and corticosteroids under CT guidance for the treatment of piriformis syndrome.

  15. IDL Grid Web Portal

    NASA Astrophysics Data System (ADS)

    Massimino, P.; Costa, A.

    2008-08-01

    Image Data Language is a software for data analysis, visualization and cross-platform application development. The potentiality of IDL is well-known in the academic scientific world, especially in the astronomical environment where thousands of procedures are developed by using IDL. The typical use of IDL is the interactive mode but it is also possible to run IDL programs that do not require any interaction with the user, submitting them in batch or background modality. Through the interactive mode the user immediately receives images or other data produced in the running phase of the program; in batch or background mode, the user will have to wait for the end of the program, sometime for many hours or days to obtain images or data that IDL produced as output: in fact in Grid environment it is possible to access to or retrieve data only after completion of the program. The work that we present gives flexibility to IDL procedures submitted to the Grid computer infrastructure. For this purpose we have developed an IDL Grid Web Portal to allow the user to access the Grid and to submit IDL programs granting a full job control and the access to images and data generated during the running phase, without waiting for their completion. We have used the PHP technology and we have given the same level of security that Grid normally offers to its users. In this way, when the user notices that the intermediate program results are not those expected, he can stop the job, change the parameters to better satisfy the computational algorithm and resubmit the program, without consuming the CPU time and other Grid resources. The IDL Grid Web Portal allows you to obtain IDL generated images, graphics and data tables by using a normal browser. All conversations from the user and the Grid resources occur via Web, as well as authentication phases. The IDL user has not to change the program source much because the Portal will automatically introduce the appropriate modification before

  16. [Treatment of nontumoral portal vein thrombosis in cirrhosis].

    PubMed

    Bañares, Rafael; Catalina, María-Vega

    2014-07-01

    Portal vein thrombosis in cirrhosis is a relatively common complication associated with the presence of an accompanying prothrombotic phenotype of advanced cirrhosis. The consequences of portal vein thrombosis are relevant because it can be associated with impaired hepatic function, might contraindicate hepatic transplantation and could increase morbidity in the surgical procedure. There is controversy concerning the most effective treatment of portal vein thrombosis, which is based on information that is seldom robust and whose primary objective is to achieve a return to vessel patency. Various studies have suggested that starting anticoagulation therapy early is associated with portal vein repatency more frequently than without treatment and has a low rate of complications. There are no proven data on the type of anticoagulant (low-molecular-weight heparins or dicoumarin agents) and the treatment duration. The implementation of TIPS is technically feasible in thrombosis without cavernous transformation and is associated with portal vein recanalization in a significant proportion of cases. Thrombolytic therapy does not appear to present an adequate balance between efficacy and safety; its use is therefore not supported for this indication. The proper definition of treatment for portal vein thrombosis requires properly designed studies to delimit the efficacy and safety of the various alternatives.

  17. Starting Point: Pedagogic Resources for Teaching and Learning Economics

    ERIC Educational Resources Information Center

    Maier, Mark H.; McGoldrick, KimMarie; Simkins, Scott P.

    2012-01-01

    This article describes Starting Point: Teaching and Learning Economics, a Web-based portal that makes innovative pedagogic resources and effective teaching practices easily accessible to economists. Starting Point introduces economists to teaching innovations through 16 online modules, each containing a general description of a specific pedagogic…

  18. Starting Point: Pedagogic Resources for Teaching and Learning Economics

    ERIC Educational Resources Information Center

    Maier, Mark H.; McGoldrick, KimMarie; Simkins, Scott P.

    2012-01-01

    This article describes Starting Point: Teaching and Learning Economics, a Web-based portal that makes innovative pedagogic resources and effective teaching practices easily accessible to economists. Starting Point introduces economists to teaching innovations through 16 online modules, each containing a general description of a specific pedagogic…

  19. USGS Urban Waters Portal Overview

    EPA Pesticide Factsheets

    This presentation discusses urbanization and water quality trends, major stories on contaminants and biota, scientific and educational tools for watershed organizations, and the USGS Urban Waters Portal.

  20. DES Science Portal: Computing Photometric Redshifts

    SciTech Connect

    Gschwend, Julia

    2016-01-01

    An important challenge facing photometric surveys for cosmological purposes, such as the Dark Energy Survey (DES), is the need to produce reliable photometric redshifts (photo-z). The choice of adequate algorithms and configurations and the maintenance of an up-to-date spectroscopic database to build training sets, for example, are challenging tasks when dealing with large amounts of data that are regularly updated and constantly growing. In this paper, we present the first of a series of tools developed by DES, provided as part of the DES Science Portal, an integrated web-based data portal developed to facilitate the scientific analysis of the data, while ensuring the reproducibility of the analysis. We present the DES Science Portal photometric redshift tools, starting from the creation of a spectroscopic sample to training the neural network photo-z codes, to the final estimation of photo-zs for a large photometric catalog. We illustrate this operation by calculating well calibrated photo-zs for a galaxy sample extracted from the DES first year (Y1A1) data. The series of processes mentioned above is run entirely within the Portal environment, which automatically produces validation metrics, and maintains the provenance between the different steps. This system allows us to fine tune the many steps involved in the process of calculating photo-zs, making sure that we do not lose the information on the configurations and inputs of the previous processes. By matching the DES Y1A1 photometry to a spectroscopic sample, we define different training sets that we use to feed the photo-z algorithms already installed at the Portal. Finally, we validate the results under several conditions, including the case of a sample limited to i<22.5 with the color properties close to the full DES Y1A1 photometric data. This way we compare the performance of multiple methods and training configurations. The infrastructure presented here is an effcient way to test several methods of

  1. 8. Detail, skewed portal bracing at west portal, also showing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. Detail, skewed portal bracing at west portal, also showing boxed endposts, latticed upper transverse and diagonal sway bracing, laced vertical members, view to northeast, 210mm lens. - Southern Pacific Railroad Shasta Route, Bridge No. 301.85, Milepost 301.85, Pollard Flat, Shasta County, CA

  2. NSTA Portal to Science Safety

    ERIC Educational Resources Information Center

    Roy, Ken

    2010-01-01

    The National Science Teachers Association's (NSTA) Science Safety Advisory Board recently launched the Safety in the Science Classroom portal. This portal serves as a gateway to safety resources for teachers, supervisors, and administrators. It also contains an evolving list of safety resources for elementary, middle, and high schools. The list…

  3. All Roads Lead to Portal

    ERIC Educational Resources Information Center

    Heid, Susan D.

    2007-01-01

    Portals are taking off on campuses nationwide. According to "Campus Computing 2006," the Campus Computing Project's survey of 540 two- and four-year public and private colleges and universities across the US, portal deployment for four-year public residential universities jumped from 28 to 74 percent of responding institutions between the…

  4. Of Portals, Policies, and Poets

    ERIC Educational Resources Information Center

    Bunt, Rick; Pennock, Lea

    2006-01-01

    Universities are drawn to portals as an effective way of organizing and delivering campus services and information. In a university environment, where the desire for local autonomy and the impetus for centralization are in constant tension, a portal seems especially appealing because it allows local solutions through a shared medium. But the fact…

  5. The Power in the Portal

    ERIC Educational Resources Information Center

    Chamberlain, Cathy

    2005-01-01

    Educational portals put together links to sites and resources educators would be interested in viewing. They eliminate the hours of searching that might be invested if typical search engines were used. Educational portals feature lessons, units, printable resources, creative ideas, and more. Many of these sites are free, while others are…

  6. All Roads Lead to Portal

    ERIC Educational Resources Information Center

    Heid, Susan D.

    2007-01-01

    Portals are taking off on campuses nationwide. According to "Campus Computing 2006," the Campus Computing Project's survey of 540 two- and four-year public and private colleges and universities across the US, portal deployment for four-year public residential universities jumped from 28 to 74 percent of responding institutions between the…

  7. NSTA Portal to Science Safety

    ERIC Educational Resources Information Center

    Roy, Ken

    2010-01-01

    The National Science Teachers Association's (NSTA) Science Safety Advisory Board recently launched the Safety in the Science Classroom portal. This portal serves as a gateway to safety resources for teachers, supervisors, and administrators. It also contains an evolving list of safety resources for elementary, middle, and high schools. The list…

  8. Of Portals, Policies, and Poets

    ERIC Educational Resources Information Center

    Bunt, Rick; Pennock, Lea

    2006-01-01

    Universities are drawn to portals as an effective way of organizing and delivering campus services and information. In a university environment, where the desire for local autonomy and the impetus for centralization are in constant tension, a portal seems especially appealing because it allows local solutions through a shared medium. But the fact…

  9. Portal monitoring technology control process

    SciTech Connect

    York, R.L.

    1998-12-31

    Portal monitors are an important part of the material protection, control, and accounting (MPC and A) programs in Russia and the US. Although portal monitors are only a part of an integrated MPC and A system, they are an effective means of controlling the unauthorized movement of special nuclear material (SNM). Russian technical experts have gained experience in the use of SNM portal monitors from US experts ad this has allowed them to use the monitors more effectively. Several Russian institutes and companies are designing and manufacturing SNM portal monitors in Russia. Interactions between Russian and US experts have resulted in improvements to the instruments. SNM portal monitor technology has been effectively transferred from the US to Russia and should be a permanent part of the Russian MPC and A Program. Progress in the implementation of the monitors and improvements to how they are used are discussed.

  10. Ultrasound-Guided Injection of Botulinum Toxin Type A for Piriformis Muscle Syndrome: A Case Report and Review of the Literature

    PubMed Central

    Santamato, Andrea; Micello, Maria Francesca; Valeno, Giovanni; Beatrice, Raffaele; Cinone, Nicoletta; Baricich, Alessio; Picelli, Alessandro; Panza, Francesco; Logroscino, Giancarlo; Fiore, Pietro; Ranieri, Maurizio

    2015-01-01

    Piriformis muscle syndrome (PMS) is caused by prolonged or excessive contraction of the piriformis muscle associated with pain in the buttocks, hips, and lower limbs because of the close proximity to the sciatic nerve. Botulinum toxin type A (BoNT-A) reduces muscle hypertonia as well as muscle contracture and pain inhibiting substance P release and other inflammatory factors. BoNT-A injection technique is important considering the difficult access of the needle for deep location, the small size of the muscle, and the proximity to neurovascular structures. Ultrasound guidance is easy to use and painless and several studies describe its use during BoNT-A administration in PMS. In the present review article, we briefly updated current knowledge regarding the BoNT therapy of PMS, describing also a case report in which this syndrome was treated with an ultrasound-guided injection of incobotulinumtoxin A. Pain reduction with an increase of hip articular range of motion in this patient with PMS confirmed the effectiveness of BoNT-A injection for the management of this syndrome. PMID:26266421

  11. The Portuguese Climate Portal

    NASA Astrophysics Data System (ADS)

    Gomes, Sandra; Deus, Ricardo; Nogueira, Miguel; Viterbo, Pedro; Miranda, Miguel; Antunes, Sílvia; Silva, Alvaro; Miranda, Pedro

    2016-04-01

    The Portuguese Local Warming Website (http://portaldoclima.pt) has been developed in order to support the society in Portugal in preparing for the adaptation to the ongoing and future effects of climate change. The climate portal provides systematic and easy access to authoritative scientific data ready to be used by a vast and diverse user community from different public and private sectors, key players and decision makers, but also to high school students, contributing to the increase in knowledge and awareness on climate change topics. A comprehensive set of regional climate variables and indicators are computed, explained and graphically presented. Variables and indicators were built in agreement with identified needs after consultation of the relevant social partners from different sectors, including agriculture, water resources, health, environment and energy and also in direct cooperation with the Portuguese National Strategy for Climate Change Adaptation (ENAAC) group. The visual interface allows the user to dynamically interact, explore, quickly analyze and compare, but also to download and import the data and graphics. The climate variables and indicators are computed from state-of-the-art regional climate model (RCM) simulations (e.g., CORDEX project), at high space-temporal detail, allowing to push the limits of the projections down to local administrative regions (NUTS3) and monthly or seasonal periods, promoting local adaptation strategies. The portal provides both historical data (observed and modelled for the 1971-2000 period) and future climate projections for different scenarios (modelled for the 2011-2100 period). A large effort was undertaken in order to quantify the impacts of the risk of extreme events, such as heavy rain and flooding, droughts, heat and cold waves, and fires. Furthermore the different climate scenarios and the ensemble of RCM models, with high temporal (daily) and spatial (~11km) detail, is taken advantage in order to

  12. 29 CFR 785.34 - Effect of section 4 of the Portal-to-Portal Act.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Effect of section 4 of the Portal-to-Portal Act. 785.34 Section 785.34 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR... of Principles Traveltime § 785.34 Effect of section 4 of the Portal-to-Portal Act. The Portal Act...

  13. 29 CFR 785.34 - Effect of section 4 of the Portal-to-Portal Act.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Effect of section 4 of the Portal-to-Portal Act. 785.34 Section 785.34 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR... of Principles Traveltime § 785.34 Effect of section 4 of the Portal-to-Portal Act. The Portal...

  14. The parallel virtual file system for portals.

    SciTech Connect

    Schutt, James Alan

    2004-04-01

    This report presents the result of an effort to re-implement the Parallel Virtual File System (PVFS) using Portals as the transport. This report provides short overviews of PVFS and Portals, and describes the design and implementation of PVFS over Portals. Finally, the results of performance testing of both stock PVFS and PVFS over Portals are presented.

  15. The NUCLEONICA Nuclear Science Portal

    SciTech Connect

    Magill, Joseph; Dreher, Raymond

    2009-08-19

    NUCLEONICA (www.nucleonica.net) is a new nuclear science web portal which provides a customisable, integrated environment and collaboration platform using the latest internet 'Web 2.0' technology. NUCLEONICA is aimed at professionals, academics and students working in nuclear power, health physics and radiation protection, nuclear and radio-chemistry, and astrophysics. A unique feature of the portal is the wide range of user friendly web-based nuclear science applications. The portal is also ideal for education and training purposes and as a knowledge management platform to preserve nuclear knowledge built up over many decades.

  16. The Higgs Portal and Cosmology

    SciTech Connect

    Assamagan, Ketevi; Chien-Yi Chen; Chou, John Paul; Curtin, David; Fedderke, Michael A.; Gershtein, Yuri; He, Xiao-Gang; Klute, Markus; Kozaczuk, Jonathon; Kotwal, Ashutosh; Lowette, Steven; No, Jose Miguel; Plehn, Tilman; Qian, Jianming; Ramsey-Musolf, Michael; Safonov, Alexei; Shelton, Jessie; Spannowsky, Michael; Su, Shufang; Walker, Devin G. E.; Willocq, Stephane; Winslow, Peter

    2016-04-18

    Higgs portal interactions provide a simple mechanism for addressing two open problems in cosmology: dark matter and the baryon asymmetry. In the latter instance, Higgs portal interactions may contain the ingredients for a strong first-order electroweak phase transition as well as new CP-violating interactions as needed for electroweak baryogenesis. These interactions may also allow for a viable dark matter candidate. We survey the opportunities for probing the Higgs portal as it relates to these questions in cosmology at the LHC and possible future colliders.

  17. Slackia piriformis sp. nov. and Collinsella tanakaei sp. nov., new members of the family Coriobacteriaceae, isolated from human faeces.

    PubMed

    Nagai, Fumiko; Watanabe, Yohei; Morotomi, Masami

    2010-11-01

    Three Gram-positive, strictly anaerobic, non-spore-forming, rod-shaped organisms (strains YIT 12062(T), YIT 12063(T) and YIT 12064) were isolated from human faeces. Strain YIT 12062(T) was asaccharolytic and possessed a DNA G+C content of 58.3 mol%. Cells of strain YIT 12062(T) were negative for catalase, oxidase, urease, hydrolysis of aesculin and gelatin, nitrate reduction and indole production. Based on 16S rRNA gene sequence analysis, strain YIT 12062(T) was assigned to the genus Slackia (91.7-96.0 % sequence similarities to type strains of Slackia species). Biochemical data showed that the isolate was phenotypically distinct from all recognized species of the genus Slackia. Strain YIT 12062(T) therefore represents a novel species in the genus Slackia, for which the name Slackia piriformis sp. nov. is proposed. The type strain is YIT 12062(T) (=DSM 22477(T)=JCM 16070(T)). Following 16S rRNA gene sequence analysis, strains YIT 12063(T) and YIT 12064, which were isolated from different subjects, were shown to be most closely related to species of the genus Collinsella (93.8-95.1 % similarities to type strains). Although their phenotypic characteristics were very similar and they shared >99 % 16S rRNA gene sequence similarity and >97±1.8 % DNA-DNA relatedness, the two isolates could be discriminated by RAPD fingerprints. The DNA G+C contents of strains YIT 12063(T) and YIT 12064 were 60.8 and 61.0 mol%, respectively. They were saccharolytic in API test systems, positive for aesculin hydrolysis and negative for catalase, oxidase, urease, indole production, nitrate reduction and gelatin hydrolysis. The major end products of glucose fermentation of these strains were lactate, acetate and formate. Biochemical data supported the affiliation of strains YIT 12063(T) and YIT 12064 to the genus Collinsella and showed that they were phenotypically distinct from all recognized species of the genus Collinsella. Strains YIT 12063(T) and YIT 12064 therefore

  18. Hidden Magnetic Portals Around Earth

    NASA Image and Video Library

    A NASA-sponsored researcher at the University of Iowa has developed a way for spacecraft to hunt down hidden magnetic portals in the vicinity of Earth. These gateways link the magnetic field of our...

  19. The EarthScope Portal

    NASA Astrophysics Data System (ADS)

    Baru, C.; Ahern, T.; Anderson, G.; Behrends, K.; Casey, R.; Hoyt, B.; Kamb, L.; Lin, K.; Meertens, C.; Memon, A.; Muench, J.; Stolte, C.; Weertman, B.; Weiland, C.

    2007-12-01

    The EarthScope Portal is being developed in order to provide a unified, single-point of access to EarthScope data products from USArray, PBO, and SAFOD experiments. The portal will feature basic search and data access capabilities to allow users to discover and access EarthScope data using spatial, temporal, and other metadata- based search conditions. In this presentation, we will describe the features and design of the portal, which is being developed by a team consisting of GEON (Geosciences Network, http://www.geongrid.org), IRIS, UNAVCO, and Stanford. The portal search module invokes Web services developed by IRIS, UNAVCO, and Stanford to search for EarthScope data in the archives at each of these locations. The Web services provide information about all resources (data) that match the specified search conditions. Users will be able to select from the returned data sets, add selected data to a "data cart", and request the selected data to be packaged for download to the user. The initial services being defined are for "station discovery", to find which stations are available for specified spatial and temporal bounds, and "data discovery", to find the data sets that are available from the stations. Users will subsequently be able to choose the specific datasets, which will be assembled in a user "workspace" and available for download. The EarthScope Portal leverages the significant portal development efforts of the GEON Project at the San Diego Supercomputer Center, SDSC (http://portal.geongrid.org), and the development of Web services interfaces at the three data archive facilities. The portal is implemented using the open source GridSphere portal software infrastructure which supports the well-known Java portlet interface, viz. JSR 168 or the Portlet API. It uses a set of "core" portlets that have been developed in GEON for Data Registration, Search, and Workspace Services. We will provide a report on the current state of development of the Portal. A

  20. Gaiaverse: the Gaia's outreach portal

    NASA Astrophysics Data System (ADS)

    Masana, E.

    2017-03-01

    Gaiaverse (http://gaiaverse.eu) is a dissemination portal on the ESA Gaia's mission developed within the GENIUS project, an European project funded by the European Commission to boost the impact of the next European breakthrough in astrophysics, the Gaia astrometric mission. The portal was opened in July 2015. Gaiaverse is administrated by the Universitat de Barcelona (UB) and the Consorci de Serveis Universitaris de Catalunya (CSUC).

  1. Prostacyclin Increases Portal Venous Flow.

    DTIC Science & Technology

    1984-07-01

    essociation with disease states like pancreatitis or sepsis.,... *.o -. - ,r :’. 1mncla-gsif imr % SECURITY CLASSIFICATION OF THIS PAGE(ften Data Ente@d) -’p...states. PGI is also elevated in plasma during sepsis or pancreatitis . The hemodynamic effect of PGI has not been 2 investigated with regard to the portal...and peritoneal ascites fluid 2 i-alha.during experimental hemorrhagic pancreatitis in the pig (7). Whenthis ascites fluid was injected into the portal

  2. [Portal cavenorma: diagnosis, aetiologies and consequences].

    PubMed

    Vibert, Eric; Azoulay, Daniel; Castaing, Denis; Bismuth, Henri

    2002-12-01

    Portal cavernoma is a network of veins whose caliber, initially millimetric or microscopic, is increased and which contain hepatopedal portal blood. It results from occlusion, thrombotic and always chronic, of the extra-hepatic portal system. Diagnosis is mainly done by imaging. Clinical signs of portal cavernoma are usually related to extra-hepatic portal hypertension (hematemesis due to rupture of oeso-gastric varices, splenomegaly, rectal bleeding from ano-rectal varices, growth retardation in children) and sometimes to the cause of portal hypertension (abdominal pain, venous bowel infarction). Occurrence of portal thrombosis is often the conjunction of a local cause and a prothrombotic disorder which must be systematically detected. Biliary consequences of cavernoma are related to compression of common bile duct and are usually asymptomatic. In case of jaundice or cholangitis, portal decompression by portosystemic shunt can be performed to treat both biliary symptoms and portal hypertension.

  3. The quail anatomy portal.

    PubMed

    Ruparelia, Avnika A; Simkin, Johanna E; Salgado, David; Newgreen, Donald F; Martins, Gabriel G; Bryson-Richardson, Robert J

    2014-01-01

    The Japanese quail is a widely used model organism for the study of embryonic development; however, anatomical resources are lacking. The Quail Anatomy Portal (QAP) provides 22 detailed three-dimensional (3D) models of quail embryos during development from embryonic day (E)1 to E15 generated using optical projection tomography. The 3D models provided can be virtually sectioned to investigate anatomy. Furthermore, using the 3D nature of the models, we have generated a tool to assist in the staging of quail samples. Volume renderings of each stage are provided and can be rotated to allow visualization from multiple angles allowing easy comparison of features both between stages in the database and between images or samples in the laboratory. The use of JavaScript, PHP and HTML ensure the database is accessible to users across different operating systems, including mobile devices, facilitating its use in the laboratory.The QAP provides a unique resource for researchers using the quail model. The ability to virtually section anatomical models throughout development provides the opportunity for researchers to virtually dissect the quail and also provides a valuable tool for the education of students and researchers new to the field. DATABASE URL: http://quail.anatomyportal.org (For review username: demo, password: quail123).

  4. The quail anatomy portal

    PubMed Central

    Ruparelia, Avnika A.; Simkin, Johanna E.; Salgado, David; Newgreen, Donald F.; Martins, Gabriel G.; Bryson-Richardson, Robert J.

    2014-01-01

    The Japanese quail is a widely used model organism for the study of embryonic development; however, anatomical resources are lacking. The Quail Anatomy Portal (QAP) provides 22 detailed three-dimensional (3D) models of quail embryos during development from embryonic day (E)1 to E15 generated using optical projection tomography. The 3D models provided can be virtually sectioned to investigate anatomy. Furthermore, using the 3D nature of the models, we have generated a tool to assist in the staging of quail samples. Volume renderings of each stage are provided and can be rotated to allow visualization from multiple angles allowing easy comparison of features both between stages in the database and between images or samples in the laboratory. The use of JavaScript, PHP and HTML ensure the database is accessible to users across different operating systems, including mobile devices, facilitating its use in the laboratory.The QAP provides a unique resource for researchers using the quail model. The ability to virtually section anatomical models throughout development provides the opportunity for researchers to virtually dissect the quail and also provides a valuable tool for the education of students and researchers new to the field. Database URL: http://quail.anatomyportal.org (For review username: demo, password: quail123) PMID:24715219

  5. Portal to the Future

    NASA Astrophysics Data System (ADS)

    Gates, Evalyn

    2011-04-01

    Museums are a portal connecting us to a deeper understanding of the world in which we live, from our own backyards to the most distant galaxies; an access point to the incredible discoveries we have made about the natural world and a flashpoint for inspiring the next generation of explorers. The Cleveland Museum of Natural History is poised to redefine what a natural history museum can be, offering visitors an opportunity to travel through space and time to explore the origins of our planet, follow the evolution of life on Earth and project into -- and plan for -- the future. The Museum will launch visitors into the future this summer via SmartHome Cleveland -- an extremely energy-efficient "passive house" that will demonstrate the future of green building technology. This unique exhibit is part of a special series of exhibits, programs and workshops on sustainability, including a major exhibit on Climate Change, which will be featured at the Museum this summer and fall.

  6. Comparison of insertional trauma between suprapatellar and infrapatellar portals for tibial nailing.

    PubMed

    Gaines, Robert J; Rockwood, Jason; Garland, Joshua; Ellingson, Christopher; Demaio, Marlene

    2013-09-01

    The purpose of this study was to determine differences in insertional articular trauma in infrapatellar tibial portal and suprapatellar portal intramedullary tibial nail insertion techniques. A cadaveric study was performed on 10 matched pairs of fresh-frozen adult cadaver lower extremities with intact extensor mechanisms. Two study groups with 10 limbs each were created: left lower limbs were treated with a standard medial parapatellar nailing portal and right lower limbs were treated with a suprapatellar tibial nailing portal. Start points were created under fluoroscopic guidance in anteroposterior and mediolateral planes. A start wire was placed and opening reaming was performed on the specimens using instrumentation specific to the nailing portal. Specimens were then dissected by medial parapatellar arthrotomy, revealing the intra-articular condition of the knee structures. The border of the tibial entry reamer hole was measured to the anterior horns of the menisci, anterior cruciate ligament root, and intermeniscal ligament using a digital caliper accurate to 0.02 mm. The structure was considered damaged if the structure was obviously damaged on visual inspection or if a measurement was less than 1 mm. Impact to intra-articular structures was numerically lower in the suprapatellar group (2/10) compared with the infrapatellar group (4/10), but the difference was not statistically significant between the 2 groups (P=.629). The suprapatellar portal approach to the tibial start point demonstrated a lower overall incidence of damage to intra-articular structures, but no significant statistical difference existed between the 2 treatment groups.

  7. The Starting Early Starting Smart Story.

    ERIC Educational Resources Information Center

    Casey Family Programs, Seattle, WA.

    Starting Early Starting Smart (SESS) is an early childhood public/private initiative designed to identify new, empirical knowledge about the effectiveness of integrating substance abuse prevention, addictions treatment, and mental health services with primary health care and childcare service settings (e.g., Head Start, day care, preschool) to…

  8. Web Portal for Multicast Delivery Management.

    ERIC Educational Resources Information Center

    Mannaert, H.; De Gruyter, B.; Adriaenssens, P.

    2003-01-01

    Presents a Web portal for multicast communication management, which provides fully automatic service management with integrated provisioning of hardware equipment. Describes the software architecture, the implementation, and the application usage of the Web portal for multicast delivery. (Author/AEF)

  9. Web Portal for Multicast Delivery Management.

    ERIC Educational Resources Information Center

    Mannaert, H.; De Gruyter, B.; Adriaenssens, P.

    2003-01-01

    Presents a Web portal for multicast communication management, which provides fully automatic service management with integrated provisioning of hardware equipment. Describes the software architecture, the implementation, and the application usage of the Web portal for multicast delivery. (Author/AEF)

  10. Portal cavernoma cholangiopathy: diagnosis, imaging, and intervention.

    PubMed

    Moomjian, Lauren N; Winks, Sarah G

    2017-01-01

    The term portal cavernoma cholangiopathy refers to the biliary tract abnormalities that accompany extrahepatic portal vein obstruction (EHPVO) and subsequent cavernous transformation of the portal vein. EHPVO is a primary vascular disorder of the portal vein in children and adults manifested by longstanding thrombosis of the main portal vein. Nearly all patients with EHPVO have manifestations of portal cavernoma cholangiopathy, such as extrinsic indentation on the bile duct and mild bile duct narrowing, but the majority are asymptomatic. However, progressive portal cavernoma cholangiopathy may lead to severe complications, including secondary biliary cirrhosis. A spectrum of changes is seen radiologically in the setting of portal cavernoma cholangiopathy, including extrinsic indentation of the bile ducts, bile duct stricturing, bile duct wall thickening, angulation and displacement of the extrahepatic bile duct, cholelithiasis, choledocholithiasis, and hepatolithiasis. Radiologists must be aware of this disorder in order to provide appropriate imaging evaluation and interpretation, to facilitate appropriate treatment and to distinguish this entity from its potential radiologic mimics.

  11. The Reusable Astronomy Portal (TRAP)

    NASA Astrophysics Data System (ADS)

    Donaldson, T.; Rogers, A.; Wallace, G.

    2012-09-01

    The Reusable Astronomy Portal (TRAP) aims to provide a common platform for rapidly deploying Astronomy Archives to the web. TRAP is currently under development for both the VAO Data Discovery Portal and the MAST Multi-Mission Portal (Figure 1). TRAP consists of 2 major software packages: the TRAP Client and the TRAP Server. The TRAP framework allows developers to deploy the Server, connect to data resources, then focus on building custom tools for the Client. TRAP is built upon proven industry technologies including the Ext/JS JavaScript Component Library, Mono.NET Web Services, and JSON message based APIs. The multi-layered architecture of TRAP decouples each layer: Client, Service and Data Access, enabling each to evolve independently over time. Although currently deployed to provide astronomy science data access, the TRAP architecture is flexible enough to thrive in any distributed data environment.

  12. The Higgs portal above threshold

    SciTech Connect

    Craig, Nathaniel; Lou, Hou Keong; McCullough, Matthew; Thalapillil, Arun

    2016-02-18

    The discovery of the Higgs boson opens the door to new physics interacting via the Higgs Portal, including motivated scenarios relating to baryogenesis, dark matter, and electroweak naturalness. In this study, we systematically explore the collider signatures of singlet scalars produced via the Higgs Portal at the 14TeV LHC and a prospective 100TeV hadron collider. We focus on the challenging regime where the scalars are too heavy to be produced in the decays of an on-shell Higgs boson, and instead are produced primarily via an o ff-shell Higgs. Assuming these scalars escape the detector, promising channels include missing energy in association with vector boson fusion, monojets, and top pairs. In addition, we forecast the sensitivity of searches in these channels at √s = 14 & 100 TeV and compare collider reach to the motivated parameter space of singlet-assisted electroweak baryogenesis, Higgs Portal dark matter, and neutral naturalness.

  13. 29 CFR 785.50 - Section 4 of the Portal-to-Portal Act.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Section 4 of the Portal-to-Portal Act. 785.50 Section 785.50 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR... Provisions § 785.50 Section 4 of the Portal-to-Portal Act. Section 4 of this Act provides that: (a) Except...

  14. 29 CFR 785.50 - Section 4 of the Portal-to-Portal Act.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Section 4 of the Portal-to-Portal Act. 785.50 Section 785.50 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR... Provisions § 785.50 Section 4 of the Portal-to-Portal Act. Section 4 of this Act provides that: (a) Except...

  15. The Cosmos Portal and the IYA2009 Project

    NASA Astrophysics Data System (ADS)

    Haisch, Bernard M.; Sims, M.; Lindblom, J.

    2009-05-01

    In 2007 the non-profit Digital Universe Foundation (DUF) launched the Earth Portal (earthportal.org) as a comprehensive resource for timely, objective, science-based information about the environment. There are currently over 1000 scholars from 60 countries engaged in this rapidly growing web-based collaboration. The Cosmos Portal is the second major DUF initiative (cosmosportal.org). In support of the IYA2009 effort, the Cosmos Portal is recruiting astronomy professionals to make use of easy online tools to publish articles, blogs, news items, image galleries, class notes, lectures, powerpoint presentations, links to other high quality websites or other educational material. A major difference between the Digital Universe and Wikipedia is that educational material is produced by identified experts, not anonymous contributors with unknown qualifications. The Digital Universe is a 501(c)(3) public charity whose goal is to evolve into a worldwide online community (a social network) whose centerpiece is an ever growing Asimov-Sagan Encyclopedia Galactica created by experts. We encourage you to write an encylopedia article or start a portal on your favorite topic or join an existing topic as an expert contributor.

  16. From EGEE Operations Portal towards EGI Operations Portal

    NASA Astrophysics Data System (ADS)

    Cordier, Hélène; L'Orphelin, Cyril; Reynaud, Sylvain; Lequeux, Olivier; Loikkanen, Sinikka; Veyre, Pierre

    Grid operators in EGEE have been using a dedicated dashboard as their central operational tool, stable and scalable for the last 5 years despite continuous upgrade from specifications by users, monitoring tools or data providers. In EGEE-III, recent regionalisation of operations led the Operations Portal developers to conceive a standalone instance of this tool. We will see how the dashboard reorganization paved the way for the re-engineering of the portal itself. The outcome is an easily deployable package customized with relevant information sources and specific decentralized operational requirements. This package is composed of a generic and scalable data access mechanism, Lavoisier; a renowned php framework for configuration flexibility, Symfony and a MySQL database. VO life cycle and operational information, EGEE broadcast and Downtime notifications are next for the major reorganization until all other key features of the Operations Portal are migrated to the framework. Features specifications will be sketched at the same time to adapt to EGI requirements and to upgrade. Future work on feature regionalisation, on new advanced features or strategy planning will be tracked in EGI- Inspire through the Operations Tools Advisory Group, OTAG, where all users, customers and third parties of the Operations Portal are represented from January 2010.

  17. Portal Monitor Future Development Work: Hardware Improvements

    SciTech Connect

    Browne, Michael C.

    2012-07-03

    LANL portal monitor was a modification of a previously installed (permanent) unattended monitoring system (UMS). Modifications to the UMS to make the portal were sometimes based on mistaken assumptions about exercise-specific installation and access. Philosophical approach to real-time portal differs in some areas from UMS.

  18. 29 CFR 790.5 - Effect of Portal-to-Portal Act on determination of hours worked.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Effect of Portal-to-Portal Act on determination of hours... GENERAL STATEMENT AS TO THE EFFECT OF THE PORTAL-TO-PORTAL ACT OF 1947 ON THE FAIR LABOR STANDARDS ACT OF... Effect of Portal-to-Portal Act on determination of hours worked. (a) In the application of the minimum...

  19. 29 CFR 790.5 - Effect of Portal-to-Portal Act on determination of hours worked.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Effect of Portal-to-Portal Act on determination of hours... GENERAL STATEMENT AS TO THE EFFECT OF THE PORTAL-TO-PORTAL ACT OF 1947 ON THE FAIR LABOR STANDARDS ACT OF... Effect of Portal-to-Portal Act on determination of hours worked. (a) In the application of the minimum...

  20. Mortality after portal vein embolization

    PubMed Central

    Lee, Eung Chang; Park, Sang-Jae; Han, Sung-Sik; Park, Hyeong Min; Lee, Seung Duk; Kim, Seong Hoon; Lee, In Joon; Kim, Hyun Beom

    2017-01-01

    Abstract Portal vein embolization (PVE) is increasingly performed worldwide to reduce the possibility of liver failure after extended hepatectomy, by inducing future liver remnant (FLR) hypertrophy and atrophy of the liver planned for resection. The procedure is known to be very safe and to have few procedure-related complications. In this study, we described 2 elderly patients with Bismuth–Corlette type IV Klatskin tumor who underwent right trisectional PVE involving the embolization of the right portal vein, the left medial sectional portal branch, and caudate portal vein. Within 1 week after PVE, patients went into sepsis combined with bile leak and died within 1 month. Sepsis can cause acute liver failure in patients with chronic liver disease. In this study, the common patient characteristics other than sepsis, that is, trisectional PVE; chronic alcoholism; aged >65 years; heart-related comorbidity; and elevated serum total bilirubin (TB) level (7.0 mg/dL) at the time of the PVE procedure in 1 patient, and concurrent biliary procedure, that is, percutaneous transhepatic biliary drainage in the other patient might have affected the outcomes of PVE. These cases highlight that PVE is not a safe procedure. Care should be taken to minimize the occurrence of infectious events because sepsis following PVE can cause acute liver failure. Additionally, prior to performing PVE, the extent of PVE, chronic alcohol consumption, age, comorbidity, long-lasting jaundice, concurrent biliary procedure, etc. should be considered for patient safety. PMID:28178122

  1. TOPICAL REVIEW: Electronic portal imaging devices: a review and historical perspective of contemporary technologies and research

    NASA Astrophysics Data System (ADS)

    Antonuk, Larry E.

    2002-03-01

    A review of electronic portal imaging devices (EPIDs) used in external beam, megavoltage radiation therapy is presented. The review consists of a brief introduction to the definition, role and clinical significance of portal imaging, along with a discussion of radiotherapy film systems and the motivations for EPIDs. This is followed by a summary of the challenges and constraints inherent to portal imaging along with a concise, historical review of the technologies that have been explored and developed. The paper then examines, in greater depth, the two first-generation technologies that have found widespread clinical use starting from the late 1980s. This is followed by a broad overview of the physics, operation, properties and advantages of active matrix, flat-panel, megavoltage imagers, presently being commercially introduced to clinical environments or expected to be introduced in the future. Finally, a survey of contemporary research efforts focused on improving portal imaging performance by addressing various weaknesses in existing commercial systems is presented.

  2. The SmartGeo Portal: A retrospective

    NASA Astrophysics Data System (ADS)

    Heilmann, Zeno; Satta, Guido; Bonomi, Ernesto

    2016-04-01

    The SmartGeo portal was created in a follow-up project that evolved from the geophysical data imaging services of a Grid computing portal for Geoscience, called GRIDA3. The scope of the project was to support commercial geotechnical service providers as well as academic researchers working in near-surface geoscience. Starting from the existing services, the SmartGeo portal was set up on new hardware, using the latest version of the grid portal environment EnginFrame. After a first working version was established, the services were reviewed, updated and accompanied by new services according to the feedback we received from our partners. One partner for instance experienced large difficulties in a project that aimed at delineating the aquifer for finding water pollutant substances in an industrial area of Basel. The seismic imaging service inherited from the previous portal was employing a data-driven algorithm optimized to provide, directly during data acquisition, nearly in real-time a first image of the subsurface structure. Different to this, our user needed for his data from a geologically very complex and noisy urban environment the maximum lateral resolution and noise reduction possible. For this purpose we added two cutting edge data imaging algorithms able to deliver such high precision results by simultaneously optimizing, for every single image point, all parameters of the mathematical model---a procedure which increased the computational effort by one or two magnitudes, respectively. Thus, parallel computing on grid infrastructure served for maximizing the image resolution instead for generating real-time results. This proved also very useful for the data of an academic partner, recorded for imaging the structure of a shallow sedimentary basin, where we could obtain strongly improved seismic velocity information using these new algorithms. A general user request was to implement interactive data visualization tools. To fulfill this demand we took

  3. The new IAGOS Database Portal

    NASA Astrophysics Data System (ADS)

    Boulanger, Damien; Gautron, Benoit; Thouret, Valérie; Fontaine, Alain

    2016-04-01

    IAGOS (In-service Aircraft for a Global Observing System) is a European Research Infrastructure which aims at the provision of long-term, regular and spatially resolved in situ observations of the atmospheric composition. IAGOS observation systems are deployed on a fleet of commercial aircraft. The IAGOS database is an essential part of the global atmospheric monitoring network. It contains IAGOS-core data and IAGOS-CARIBIC (Civil Aircraft for the Regular Investigation of the Atmosphere Based on an Instrument Container) data. The IAGOS Database Portal (http://www.iagos.fr, damien.boulanger@obs-mip.fr) is part of the French atmospheric chemistry data center AERIS (http://www.aeris-data.fr). The new IAGOS Database Portal has been released in December 2015. The main improvement is the interoperability implementation with international portals or other databases in order to improve IAGOS data discovery. In the frame of the IGAS project (IAGOS for the Copernicus Atmospheric Service), a data network has been setup. It is composed of three data centers: the IAGOS database in Toulouse; the HALO research aircraft database at DLR (https://halo-db.pa.op.dlr.de); and the CAMS data center in Jülich (http://join.iek.fz-juelich.de). The CAMS (Copernicus Atmospheric Monitoring Service) project is a prominent user of the IGAS data network. The new portal provides improved and new services such as the download in NetCDF or NASA Ames formats, plotting tools (maps, time series, vertical profiles, etc.) and user management. Added value products are available on the portal: back trajectories, origin of air masses, co-location with satellite data, etc. The link with the CAMS data center, through JOIN (Jülich OWS Interface), allows to combine model outputs with IAGOS data for inter-comparison. Finally IAGOS metadata has been standardized (ISO 19115) and now provides complete information about data traceability and quality.

  4. Portals Reference Implementation v. 1.0

    SciTech Connect

    Grant, Ryan E.; Barrett, Brian W.; Pedretti, Kevin; Wheeler, Kyle; Levenhagen, Michael; Benner, Jr., Robert; Riesen, Rolf; Zago, Frank; Pearson, Bob; Welch, Steve

    2016-04-15

    The Portals reference implementation is based on the Portals 4.X API, published by Sandia National Laboratories as a freely available public document. It is designed to be an implementation of the Portals Networking Application Programming Interface and is used by several other upper layer protocols like SHMEM, GASNet and MPI. It is implemented over existing networks, specifically Ethernet and InfiniBand networks. This implementation provides Portals networks functionality and serves as a software emulation of Portals compliant networking hardware. It can be used to develop software using the Portals API prior to the debut of Portals networking hardware, such as Bull’s BXI interconnect, as well as a substitute for portals hardware on development platforms that do not have Portals compliant hardware. The reference implementation provides new capabilities beyond that of a typical network, namely the ability to have messages matched in hardware in a way compatible with upper layer software such as MPI or SHMEM. It also offers methods of offloading network operations via triggered operations, which can be used to create offloaded collective operations. Specific details on the Portals API can be found at http://portals4.org.

  5. Portal biliopathy treated with endoscopic biliary stenting

    PubMed Central

    Jeon, Sung Jin; Min, Jae Ki; Kwon, So Young; Kim, Jun Hyun; Moon, Sun Young; Lee, Kang Hoon; Kim, Jeong Han; Choe, Won Hyeok; Cheon, Young Koog; Kim, Tae Hyung; Park, Hee Sun

    2016-01-01

    Portal biliopathy is defined as abnormalities in the extra- and intrahepatic ducts and gallbladder of patients with portal hypertension. This condition is associated with extrahepatic venous obstruction and dilatation of the venous plexus of the common bile duct, resulting in mural irregularities and compression of the biliary tree. Most patients with portal biliopathy remain asymptomatic, but approximately 10% of them advance to symptomatic abdominal pain, jaundice, and fever. Magnetic resonance cholangiopancreatography and endoscopic retrograde cholangiopancreatography are currently used as diagnostic tools because they are noninvasive and can be used to assess the regularity, length, and degree of bile duct narrowing. Management of portal biliopathy is aimed at biliary decompression and reducing the portal pressure. Portal biliopathy has rarely been reported in Korea. We present a symptomatic case of portal biliopathy that was complicated by cholangitis and successfully treated with biliary endoscopic procedures. PMID:27044769

  6. Portal Connecting Dark Photons and Axions.

    PubMed

    Kaneta, Kunio; Lee, Hye-Sung; Yun, Seokhoon

    2017-03-10

    The dark photon and the axion (or axionlike particle) are popular light particles of the hidden sector. Each of them has been actively searched for through the couplings called the vector portal and the axion portal. We introduce a new portal connecting the dark photon and the axion (axion-photon-dark photon, axion-dark photon-dark photon), which emerges in the presence of the two particles. This dark axion portal is genuinely new couplings, not just from a product of the vector portal and the axion portal, because of the internal structure of these couplings. We present a simple model that realizes the dark axion portal and discuss why it warrants a rich phenomenology.

  7. Developing Interoperable Air Quality Community Portals

    NASA Astrophysics Data System (ADS)

    Falke, S. R.; Husar, R. B.; Yang, C. P.; Robinson, E. M.; Fialkowski, W. E.

    2009-04-01

    Web portals are intended to provide consolidated discovery, filtering and aggregation of content from multiple, distributed web sources targeted at particular user communities. This paper presents a standards-based information architectural approach to developing portals aimed at air quality community collaboration in data access and analysis. An important characteristic of the approach is to advance beyond the present stand-alone design of most portals to achieve interoperability with other portals and information sources. We show how using metadata standards, web services, RSS feeds and other Web 2.0 technologies, such as Yahoo! Pipes and del.icio.us, helps increase interoperability among portals. The approach is illustrated within the context of the GEOSS Architecture Implementation Pilot where an air quality community portal is being developed to provide a user interface between the portals and clearinghouse of the GEOSS Common Infrastructure and the air quality community catalog of metadata and data services.

  8. Portal Connecting Dark Photons and Axions

    NASA Astrophysics Data System (ADS)

    Kaneta, Kunio; Lee, Hye-Sung; Yun, Seokhoon

    2017-03-01

    The dark photon and the axion (or axionlike particle) are popular light particles of the hidden sector. Each of them has been actively searched for through the couplings called the vector portal and the axion portal. We introduce a new portal connecting the dark photon and the axion (axion-photon-dark photon, axion-dark photon-dark photon), which emerges in the presence of the two particles. This dark axion portal is genuinely new couplings, not just from a product of the vector portal and the axion portal, because of the internal structure of these couplings. We present a simple model that realizes the dark axion portal and discuss why it warrants a rich phenomenology.

  9. Portal biliopathy treated with endoscopic biliary stenting.

    PubMed

    Jeon, Sung Jin; Min, Jae Ki; Kwon, So Young; Kim, Jun Hyun; Moon, Sun Young; Lee, Kang Hoon; Kim, Jeong Han; Choe, Won Hyeok; Cheon, Young Koog; Kim, Tae Hyung; Park, Hee Sun

    2016-03-01

    Portal biliopathy is defined as abnormalities in the extra- and intrahepatic ducts and gallbladder of patients with portal hypertension. This condition is associated with extrahepatic venous obstruction and dilatation of the venous plexus of the common bile duct, resulting in mural irregularities and compression of the biliary tree. Most patients with portal biliopathy remain asymptomatic, but approximately 10% of them advance to symptomatic abdominal pain, jaundice, and fever. Magnetic resonance cholangiopancreatography and endoscopic retrograde cholangiopancreatography are currently used as diagnostic tools because they are noninvasive and can be used to assess the regularity, length, and degree of bile duct narrowing. Management of portal biliopathy is aimed at biliary decompression and reducing the portal pressure. Portal biliopathy has rarely been reported in Korea. We present a symptomatic case of portal biliopathy that was complicated by cholangitis and successfully treated with biliary endoscopic procedures.

  10. Extrahepatic Portal Vein Obstruction and Portal Vein Thrombosis in Special Situations: Need for a New Classification

    PubMed Central

    Wani, Zeeshan A.; Bhat, Riyaz A.; Bhadoria, Ajeet S.; Maiwall, Rakhi

    2015-01-01

    Extrahepatic portal vein obstruction is a vascular disorder of liver, which results in obstruction and cavernomatous transformation of portal vein with or without the involvement of intrahepatic portal vein, splenic vein, or superior mesenteric vein. Portal vein obstruction due to chronic liver disease, neoplasm, or postsurgery is a separate entity and is not the same as extrahepatic portal vein obstruction. Patients with extrahepatic portal vein obstruction are generally young and belong mostly to Asian countries. It is therefore very important to define portal vein thrombosis as acute or chronic from management point of view. Portal vein thrombosis in certain situations such as liver transplant and postsurgical/liver transplant period is an evolving area and needs extensive research. There is a need for a new classification, which includes all areas of the entity. In the current review, the most recent literature of extrahepatic portal vein obstruction is reviewed and summarized. PMID:26021771

  11. Patient portal doldrums: does an exam room promotional video during an office visit increase patient portal registrations and portal use?

    PubMed Central

    Hanna, Barbara K; Crane, Sarah J; Smith, Steven A; Tulledge-Scheitel, Sidna M; Stroebel, Robert J

    2011-01-01

    The patient portal is a web service which allows patients to view their electronic health record, communicate online with their care teams, and manage healthcare appointments and medications. Despite advantages of the patient portal, registrations for portal use have often been slow. Using a secure video system on our existing exam room electronic health record displays during regular office visits, the authors showed patients a video which promoted use of the patient portal. The authors compared portal registrations and portal use following the video to providing a paper instruction sheet and to a control (no additional portal promotion). From the 12 050 office appointments examined, portal registrations within 45 days of the appointment were 11.7%, 7.1%, and 2.5% for video, paper instructions, and control respectively (p<0.0001). Within 6 months following the interventions, 3.5% in the video cohort, 1.2% in the paper, and 0.75% of the control patients demonstrated portal use by initiating portal messages to their providers (p<0.0001). PMID:21976028

  12. Patient portal doldrums: does an exam room promotional video during an office visit increase patient portal registrations and portal use?

    PubMed

    North, Frederick; Hanna, Barbara K; Crane, Sarah J; Smith, Steven A; Tulledge-Scheitel, Sidna M; Stroebel, Robert J

    2011-12-01

    The patient portal is a web service which allows patients to view their electronic health record, communicate online with their care teams, and manage healthcare appointments and medications. Despite advantages of the patient portal, registrations for portal use have often been slow. Using a secure video system on our existing exam room electronic health record displays during regular office visits, the authors showed patients a video which promoted use of the patient portal. The authors compared portal registrations and portal use following the video to providing a paper instruction sheet and to a control (no additional portal promotion). From the 12,050 office appointments examined, portal registrations within 45 days of the appointment were 11.7%, 7.1%, and 2.5% for video, paper instructions, and control respectively (p<0.0001). Within 6 months following the interventions, 3.5% in the video cohort, 1.2% in the paper, and 0.75% of the control patients demonstrated portal use by initiating portal messages to their providers (p<0.0001).

  13. 1. West portal of the mudshed abutting the west portal ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. West portal of the mudshed abutting the west portal of Tunnel 5, view to the northwest, 135mm lens. The flat-roofed reinforced concrete mudsheds, rocksheds, and snowsheds are a common feature of the Natron Cutoff over the summit of the Cascades. With the railroad located on a sidehill bench cut into the precipitous slopes, the sheds protect the track from rock and mud slides, as well as from avalanches. With a solid wall on the uphill side and a series of columns on the downhill side, they form a gallery-like effect from within. This mudshed was built concurrent with the tunnel, in 1927. Though none of the mudsheds on the line are scheduled to be modified, this shed was documented as an integral element of Tunnel 5. - Southern Pacific Railroad Natron Cutoff, Tunnel 5, Milepost 545.2, McCredie Springs, Lane County, OR

  14. [Selective portal-systemic shunts for bleeding portal hypertension].

    PubMed

    Orozco, H; Mercado, M A; Takahashi, T; García-Tsao, G; Guevara, L; Hernandez-Ortiz, J; Tielve, M

    1990-07-01

    At the beginning of the seventies, we began to perform regularly selective shunts for the treatment of portal hypertension. In a 15 year period, 177 patients (155 with liver cirrhosis) were operated with three kinds of selective shunts: 128 with a Warren shunt, 29 with an end to end renosplenic shunt and 20 with a splenocaval shunt. 167 cases were operated in an elective fashion. The 15 years global operative mortality, was 14.4%. Operative mortality of the Child A patients, was 11.6%. Survival for the Child A group was 74.6% at 1 year, 68.2% at 5 years and 64.6% at 15 years. Incapacitating encephalopathy was observed in 6.9%, rebleeding 6.2% and shunt thrombosis in 6.2%. Portal vein alterations in the postoperative period were observed: in 13.3% a reduction in diameter ocurred and in 20.5%, thrombosis was recorded. It is concluded that when feasible, the selective shunts are the treatment of choice for portal hypertension in those patients with good liver function.

  15. Vertical flow chemical detection portal

    DOEpatents

    Linker, Kevin L.; Hannum, David W.; Conrad, Frank James

    1999-01-01

    A portal apparatus for screening objects or persons for the presence of trace amounts of chemical substances such as illicit drugs or explosives. The apparatus has a test space, in which a person may stand, defined by two generally upright sides spanned by a horizontal transom. One or more fans in the transom generate a downward air flow (uni-directional) within the test space. The air flows downwardly from a high pressure upper zone, past the object or person to be screened. Air moving past the object dislodges from the surface thereof both volatile and nonvolatile particles of the target substance. The particles are entrained into the air flow which continues flowing downward to a lower zone of reduced pressure, where the particle-bearing air stream is directed out of the test space and toward preconcentrator and detection components. The sides of the portal are specially configured to partially contain and maintain the air flow.

  16. Vertical flow chemical detection portal

    DOEpatents

    Linker, K.L.; Hannum, D.W.; Conrad, F.J.

    1999-06-22

    A portal apparatus is described for screening objects or persons for the presence of trace amounts of chemical substances such as illicit drugs or explosives. The apparatus has a test space, in which a person may stand, defined by two generally upright sides spanned by a horizontal transom. One or more fans in the transom generate a downward air flow (uni-directional) within the test space. The air flows downwardly from a high pressure upper zone, past the object or person to be screened. Air moving past the object dislodges from the surface thereof both volatile and nonvolatile particles of the target substance. The particles are entrained into the air flow which continues flowing downward to a lower zone of reduced pressure, where the particle-bearing air stream is directed out of the test space and toward preconcentrator and detection components. The sides of the portal are specially configured to partially contain and maintain the air flow. 3 figs.

  17. Uzbekistan Radiation Portal Monnitoring System

    SciTech Connect

    Richardson, J; Knapp, R; Loshak, A; Yuldashev, B; Petrenko, V

    2005-06-10

    The work proposed in this presentation builds on the foundation set by the DTRA funded demonstration project begun in 2000 and completed in December of 2003. This previous work consisted of two phases whose overall objective was to install portal radiation monitors at four select ports-of-entry in Uzbekistan (Tashkent International Airport, Gisht-Kuprik (Kazakhstan border), Alat (Turkmenistan border), and Termez (Afghanistan border)) in order to demonstrate their effectiveness in preventing the illicit trafficking of nuclear materials. The objectives also included developing and demonstrating capabilities in the design, installation, operation, training, and maintenance of a radiation portal monitoring system. The system and demonstration project has proved successful in many ways. An effective working relationship among the Uzbekistan Customs Services, Uzbekistan Border Guards, and Uzbekistan Institute of Nuclear Physics has been developed. There has been unprecedented openness with the sharing of portal monitor data with Lawrence Livermore National Laboratory. The system has proved to be effective, with detection of illicit trafficking, and, at Alat, an arrest of three persons illegally transporting radioactive materials into Turkmenistan. The demonstration project has made Uzbekistan a model nonproliferation state in Central Asia and, with an expanded program, places them in a position to seal a likely transit route for illicit nuclear materials. These results will be described. In addition, this work is currently being expanded to include additional ports-of-entry in Uzbekistan. The process for deciding on which additional ports-of-entry to equip will also be described.

  18. The Higgs portal above threshold

    DOE PAGES

    Craig, Nathaniel; Lou, Hou Keong; McCullough, Matthew; ...

    2016-02-18

    The discovery of the Higgs boson opens the door to new physics interacting via the Higgs Portal, including motivated scenarios relating to baryogenesis, dark matter, and electroweak naturalness. In this study, we systematically explore the collider signatures of singlet scalars produced via the Higgs Portal at the 14TeV LHC and a prospective 100TeV hadron collider. We focus on the challenging regime where the scalars are too heavy to be produced in the decays of an on-shell Higgs boson, and instead are produced primarily via an o ff-shell Higgs. Assuming these scalars escape the detector, promising channels include missing energy inmore » association with vector boson fusion, monojets, and top pairs. In addition, we forecast the sensitivity of searches in these channels at √s = 14 & 100 TeV and compare collider reach to the motivated parameter space of singlet-assisted electroweak baryogenesis, Higgs Portal dark matter, and neutral naturalness.« less

  19. Z-portal dark matter

    SciTech Connect

    Arcadi, Giorgio; Mambrini, Yann; Richard, Francois E-mail: yann.mambrini@th.u-psud.fr

    2015-03-01

    We propose to generalize the extensions of the Standard Model where the Z boson serves as a mediator between the Standard Model sector and the dark sector χ. We show that, like in the Higgs portal case, the combined constraints from the recent direct searches restrict severely the nature of the coupling of the dark matter to the Z boson and set a limit m{sub χ} ∼> 200 GeV (except in a very narrow region around the Z-pole region). Using complementarity between spin dependent, spin independent and FERMI limits, we predict the nature of this coupling, more specifically the axial/vectorial ratio that respects a thermal dark matter coupled through a Z-portal while not being excluded by the current observations. We also show that the next generation of experiments of the type LZ or XENON1T will test Z-portal scenario for dark matter mass up to 2 TeV . The condition of a thermal dark matter naturally predicts the spin-dependent scattering cross section on the neutron to be σ{sup SD}{sub χn} ≅ 10{sup −40} cm{sup 2}, which then becomes a clear prediction of the model and a signature testable in the near future experiments.

  20. Z-portal dark matter

    SciTech Connect

    Arcadi, Giorgio; Mambrini, Yann; Richard, Francois

    2015-03-11

    We propose to generalize the extensions of the Standard Model where the Z boson serves as a mediator between the Standard Model sector and the dark sector χ. We show that, like in the Higgs portal case, the combined constraints from the recent direct searches restrict severely the nature of the coupling of the dark matter to the Z boson and set a limit m{sub χ}≳200 GeV (except in a very narrow region around the Z-pole region). Using complementarity between spin dependent, spin independent and FERMI limits, we predict the nature of this coupling, more specifically the axial/vectorial ratio that respects a thermal dark matter coupled through a Z-portal while not being excluded by the current observations. We also show that the next generation of experiments of the type LZ or XENON1T will test Z-portal scenario for dark matter mass up to 2 TeV. The condition of a thermal dark matter naturally predicts the spin-dependent scattering cross section on the neutron to be σ{sub χn}{sup SD}≃10{sup −40} cm{sup 2}, which then becomes a clear prediction of the model and a signature testable in the near future experiments.

  1. Z-portal dark matter

    NASA Astrophysics Data System (ADS)

    Arcadi, Giorgio; Mambrini, Yann; Richard, Francois

    2015-03-01

    We propose to generalize the extensions of the Standard Model where the Z boson serves as a mediator between the Standard Model sector and the dark sector χ. We show that, like in the Higgs portal case, the combined constraints from the recent direct searches restrict severely the nature of the coupling of the dark matter to the Z boson and set a limit mχ gtrsim 200 GeV (except in a very narrow region around the Z-pole region). Using complementarity between spin dependent, spin independent and FERMI limits, we predict the nature of this coupling, more specifically the axial/vectorial ratio that respects a thermal dark matter coupled through a Z-portal while not being excluded by the current observations. We also show that the next generation of experiments of the type LZ or XENON1T will test Z-portal scenario for dark matter mass up to 2 TeV . The condition of a thermal dark matter naturally predicts the spin-dependent scattering cross section on the neutron to be σSDχn simeq 10-40 cm2, which then becomes a clear prediction of the model and a signature testable in the near future experiments.

  2. Head Start Automation Manual.

    ERIC Educational Resources Information Center

    Maryland Univ., College Park. Univ. Coll.

    The task for the National Data Management Project is to share technological capabilities with the Head Start Community in order to implement improved services for children and families involved in Head Start. Many Head Start programs have incorporated technology into their programs, including word processing, database management systems,…

  3. The Head Start Debates

    ERIC Educational Resources Information Center

    Zigler, Edward, Ed.; Styfco, Sally J., Ed.

    2004-01-01

    The future of Head Start depends on how well people learn from and apply the lessons from its past. That's why everyone involved in early education needs this timely, forward-thinking book from the leader of Head Start. The first book to capture the Head Start debates in all their complexity and diversity, this landmark volume brings together the…

  4. The Head Start Debates

    ERIC Educational Resources Information Center

    Zigler, Edward, Ed.; Styfco, Sally J., Ed.

    2004-01-01

    The future of Head Start depends on how well people learn from and apply the lessons from its past. That's why everyone involved in early education needs this timely, forward-thinking book from the leader of Head Start. The first book to capture the Head Start debates in all their complexity and diversity, this landmark volume brings together the…

  5. The role of SNM portal monitoring in the Russian MPC & A program

    SciTech Connect

    York, R.L.

    1997-05-01

    Controlling the movement of nuclear materials is still the most effective nonproliferation measure. Pedestrian and vehicle portal monitors have been an established tool for preventing the unauthorized movement of SNM across US nuclear facility boundaries for 15 years. Because the portals are reliable and easy to install, they are an efficient first step to improve the security at Russian nuclear facilities. The portals were first furnished to Russian facilities for testing and evaluation. After Russian technical experts gained experience with the operating parameters, the instruments were implemented at appropriate locations at each facility. This process has been executed at IPPE, VNIEF, VNIITF, RCC KI, and SKhK. The transfer of the portal monitoring technology to Russian institutes to promote the manufacture of Russian instruments is also an important goal of the program. The process was started with two portal monitor workshops attended by representatives of Russian facilities at ORNL and followed by technical collaborations at the individual Russian facilities. The success of this effort is illustrated by the recent workshop hosted by VNIIA at the SCI in Obninsk where specialists from thirty-two Russian nuclear facilities met to discuss their experience in portal monitoring. Twelve institutes and firms reported on the status of Russian designed and manufactured instruments. Details of this program will be presented in this paper.

  6. Preduodenal portal vein: its surgical significance.

    PubMed

    Makey, D A; Bowen, J C

    1978-11-01

    Preduodenal portal vein is a rare anatomical variant which may be one of many anomalies in the neonate with duodenal "atresia." Preduodenal portal vein also may be an occasional finding in an adult undergoing biliary, gastric, or pancreatic surgery. Awareness and recognition of the anomaly are essential for the avoidance of injury during such operations. We report here a symptomless patient whose preduodenal portal vein was discovered at cholecystectomy.

  7. Congenital abnormalities associated with extrahepatic portal hypertension.

    PubMed Central

    Odièvre, M; Pigé, G; Alagille, D

    1977-01-01

    Congenital abnormalities were present in 12 out of 30 (40%) children with extrahepatic portal hypertension of unknown cause, but in only 2 out of 17 (12%) children with extnahepatic portal hypertension secondary to umbilical vein catheterization or omphalitis. The most frequent abnormalities in this series and in published reports were atrial septal defect, malformation of the biliary tract, and anomalous inferior vena cava. These findings are consistent with the view that some cases with extrahepatic portal hypertension are congenital in origin. PMID:869567

  8. Congenital abnormalities associated with extrahepatic portal hypertension.

    PubMed

    Odièvre, M; Pigé, G; Alagille, D

    1977-05-01

    Congenital abnormalities were present in 12 out of 30 (40%) children with extrahepatic portal hypertension of unknown cause, but in only 2 out of 17 (12%) children with extnahepatic portal hypertension secondary to umbilical vein catheterization or omphalitis. The most frequent abnormalities in this series and in published reports were atrial septal defect, malformation of the biliary tract, and anomalous inferior vena cava. These findings are consistent with the view that some cases with extrahepatic portal hypertension are congenital in origin.

  9. Noncirrhotic portal fibrosis after Wilms' tumor therapy

    SciTech Connect

    Barnard, J.A.; Marshall, G.S.; Neblett, W.W.; Gray, G.; Ghishan, F.K.

    1986-04-01

    A 9-yr-old girl developed massive hemorrhage from esophageal varices 2 yr after combined modality therapy for Wilms' tumor. Evaluation showed a patent extrahepatic portal venous system and an elevated splenic pulp pressure. In contrast to previous reports of hepatopathy after irradiation injury, histologic sections of the liver did not demonstrate occlusion of the central veins, but rather a diffuse obliteration of intrahepatic portal venous radicles. This pattern of noncirrhotic portal fibrosis has not been described following antitumor therapy.

  10. 29 CFR 785.50 - Section 4 of the Portal-to-Portal Act.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Section 4 of the Portal-to-Portal Act. 785.50 Section 785.50 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR... Provisions § 785.50 Section 4 of the Portal-to-Portal Act. Section 4 of this Act provides that: (a) Except as...

  11. 29 CFR 785.50 - Section 4 of the Portal-to-Portal Act.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Section 4 of the Portal-to-Portal Act. 785.50 Section 785.50 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR... Provisions § 785.50 Section 4 of the Portal-to-Portal Act. Section 4 of this Act provides that: (a) Except as...

  12. Comparative Study of Portal Circulation Time in Patients with Portal Hypertension - USSR -

    DTIC Science & Technology

    1960-09-27

    clinical diagnosis of portal hypertension is the determination of the different hemodynamic changes and, in particular, the determination of the rate...clinical data induced us to share some of our experience accumulated in studying hemodynamic changes in patients with portal hypertension » Beginning...in 1954 we directed our principal attention to determining the rate of portal blood flow in studying hemodynamic changes in patients with portal

  13. Portal Hypertension Secondary to Isolated Liver Tuberculosis

    PubMed Central

    Mojtahedzadeh, Mona; Otoukesh, Salman; Shahsafi, Mohammad R.; Tahbaz, Mohammad O.; Rahvari, Seyed K.; Poorabdollah, Mihan; Sajadi, Mohammad M.

    2012-01-01

    In this report, we present a case of isolated liver tuberculosis (TB) as a cause of non-cirrhotic portal hypertension leading to bleeding esophageal varices. Although TB has been known to cause portal hypertension in a variety of ways, this case was notable for the presence of periportal inflammation and granulomas, also seen in hepatic schistosomiasis. Herein, we discuss isolated liver TB and the differential diagnosis of non-cirrhotic portal hypertension. In endemic areas, TB should be considered in the differential diagnosis of non-cirrhotic portal hypertension. PMID:22764308

  14. Preduodenal portal vein: surgery and radiographic appearance.

    PubMed

    Fernandes, E T; Burton, E M; Hixson, S D; Hollabaugh, R S

    1990-12-01

    Preduodenal portal vein is rare, with 63 cases reported in the literature. In general, this anomaly occurs in children with associated small bowel obstruction. We report a newborn infant who presented with duodenal stenosis, mongolism, and preduodenal portal vein. Treatment consisted of a duodenoduodenal anastomosis without mobilizing the portal vein. The correlation between imaging techniques and the operative findings is discussed. Because identification of preduodenal portal vein at surgery is important, preoperative sonography may be useful in selected cases to define the position of the vein.

  15. Patient portals - An online tool for your health

    MedlinePlus

    ... page: //medlineplus.gov/ency/patientinstructions/000880.htm Patient portals - an online tool for your health To use ... private and secure. What is in a Patient Portal? With a patient portal, you can: Make appointments ( ...

  16. 2. PORTAL ONE (MANWAY) FROM SOUTHWEST Sublet Mine No. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. PORTAL ONE (MANWAY) FROM SOUTHWEST - Sublet Mine No. 6, Portal One, South Portal, west side of Willow Creek Valley, east of County Road No. 306, 3 miles north of U.S. Highway 189, Kemmerer, Lincoln County, WY

  17. 2. PORTAL TWO FROM SOUTHEAST Sublet Mine No. 6, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. PORTAL TWO FROM SOUTHEAST - Sublet Mine No. 6, Portal Two, North portal, west side of Willow Creek Valley, east of County Road No. 306, 3 miles north of U.S. Highway 189, Kemmerer, Lincoln County, WY

  18. 1. PORTAL TWO FROM NORTHEAST Sublet Mine No. 6, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. PORTAL TWO FROM NORTHEAST - Sublet Mine No. 6, Portal Two, North portal, west side of Willow Creek Valley, east of County Road No. 306, 3 miles north of U.S. Highway 189, Kemmerer, Lincoln County, WY

  19. 1. PORTAL ONE (MANWAY) FROM SOUTHEAST Sublet Mine No. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. PORTAL ONE (MANWAY) FROM SOUTHEAST - Sublet Mine No. 6, Portal One, South Portal, west side of Willow Creek Valley, east of County Road No. 306, 3 miles north of U.S. Highway 189, Kemmerer, Lincoln County, WY

  20. ESO's User Portal: lessons learned

    NASA Astrophysics Data System (ADS)

    Chavan, A. M.; Tacconi-Garman, L. E.; Peron, M.; Sogni, F.; Dorigo, D.; Nass, P.; Fourniol, N.; Sforna, D.; Haggouchi, K.; Dolensky, M.

    2008-07-01

    ESO introduced a User Portal for its scientific services in November 2007. Registered users have a central entry point for the Observatory's offerings, the extent of which depends on the users' roles - see [1]. The project faced and overcame a number of challenging hurdles between inception and deployment, and ESO learned a number of useful lessons along the way. The most significant challenges were not only technical in nature; organization and coordination issues took a significant toll as well. We also indicate the project's roadmap for the future.

  1. Capsule endoscopy in portal hypertension.

    PubMed

    Rondonotti, Emanuele; Villa, Federica; Dell' Era, Alessandra; Tontini, Gian Eugenio; de Franchis, Roberto

    2010-05-01

    Since the introduction of small bowel capsule endoscopy, and more recently of esophageal capsule endoscopy, these diagnostic tools have become available for the evaluation of the consequences of portal hypertension in the esophagus, stomach, and small intestine. The main advantage of the esophageal and the small bowel capsule is the relatively less invasiveness that could potentially increase patients' adherence to endoscopic screening/surveillance programs. When esophageal capsule endoscopy was compared with traditional gastroscopy, it showed good sensitivity and specificity in recognizing the presence and the size of esophageal varices. However, the results are not consistent among studies, and more data are needed.

  2. An overview of Grid portal technologies for the development of HMR science gateways

    NASA Astrophysics Data System (ADS)

    D'Agostino, D.

    2012-04-01

    Grid portals and related technologies represent an easy and transparent way for scientists to interact with Distributed Computing Infrastructures (DCIs) as the Grid and the Cloud. Many toolkits and frameworks are available, both commercial and open source, but there is a lack of best practices, customization methodologies and dedicated high-level service repositories that allow a fast development of specialized scientific gateways in Europe. Starting from the US TeraGrid-XSEDE experience, in this contribution the most interesting portal toolkits and related European projects are analyzed with the perspective to develop a science gateway for HMR community within the the Distributed Research Infrastructure for Hydrometeorology (DRIHM) project.

  3. The patient portal: Considerations for NPs.

    PubMed

    Elkind, Elizabeth C; Higgins, Kathleen M

    2017-03-07

    Hospitals, patient-centered medical homes, and provider practices have either introduced or are in the process of planning for patient portals. The NP plays an important role in the patient engagement initiative. This article explores patient portal strategies and resources to support this technology integration and practice change.

  4. Factors Affecting Faculty Web Portal Usability

    ERIC Educational Resources Information Center

    Bringula, Rex P.; Basa, Roselle S.

    2011-01-01

    The study investigated the factors that might significantly affect web portal usability. Results of the study were intended to serve as inputs for faculty web portal development of the University of the East-Manila. Descriptive statistics utilized questionnaire data from 82 faculty members. The data showed that most of the respondents were…

  5. Factors Affecting Faculty Web Portal Usability

    ERIC Educational Resources Information Center

    Bringula, Rex P.; Basa, Roselle S.

    2011-01-01

    The study investigated the factors that might significantly affect web portal usability. Results of the study were intended to serve as inputs for faculty web portal development of the University of the East-Manila. Descriptive statistics utilized questionnaire data from 82 faculty members. The data showed that most of the respondents were…

  6. Idiopathic noncirrhotic portal hypertension: current perspectives

    PubMed Central

    Riggio, Oliviero; Gioia, Stefania; Pentassuglio, Ilaria; Nicoletti, Valeria; Valente, Michele; d’Amati, Giulia

    2016-01-01

    The term idiopathic noncirrhotic portal hypertension (INCPH) has been recently proposed to replace terms, such as hepatoportal sclerosis, idiopathic portal hypertension, incomplete septal cirrhosis, and nodular regenerative hyperplasia, used to describe patients with a hepatic presinusoidal cause of portal hypertension of unknown etiology, characterized by features of portal hypertension (esophageal varices, nonmalignant ascites, porto-venous collaterals), splenomegaly, patent portal, and hepatic veins and no clinical and histological signs of cirrhosis. Physicians should learn to look for this condition in a number of clinical settings, including cryptogenic cirrhosis, a disease known to be associated with INCPH, drug administration, and even chronic alterations in liver function tests. Once INCPH is clinically suspected, liver histology becomes mandatory for the correct diagnosis. However, pathologists should be familiar with the histological features of INCPH, especially in cases in which histology is not only requested to exclude liver cirrhosis. PMID:27555800

  7. Cholestasis in children with portal vein obstruction.

    PubMed

    Gauthier-Villars, Marion; Franchi, Stéphanie; Gauthier, Frédéric; Fabre, Monique; Pariente, Danièle; Bernard, Olivier

    2005-04-01

    We describe cholestasis as a result of bile duct abnormalities in 8 children with portal vein obstruction. In a clinical, biochemical and radiological investigation of 121 children with cavernous transformation of the portal vein seen between 1986 and 2000, 8 presented with jaundice, pruritus, and/or raised serum aminotransferases and/or gamma glutamyl transpeptidase (gamma GT) activities. Each displayed dilation and narrowing of intra- and/or extrahepatic bile ducts. Surgical decompression of the portal system (portal-systemic or Rex anastomosis) resulted in the regression of the signs of cholestasis in all children. We conclude that children with portal vein obstruction may exhibit clinically significant cholestasis as a result of external compression of the bile duct by the cavernoma.

  8. Idiopathic noncirrhotic portal hypertension: current perspectives.

    PubMed

    Riggio, Oliviero; Gioia, Stefania; Pentassuglio, Ilaria; Nicoletti, Valeria; Valente, Michele; d'Amati, Giulia

    2016-01-01

    The term idiopathic noncirrhotic portal hypertension (INCPH) has been recently proposed to replace terms, such as hepatoportal sclerosis, idiopathic portal hypertension, incomplete septal cirrhosis, and nodular regenerative hyperplasia, used to describe patients with a hepatic presinusoidal cause of portal hypertension of unknown etiology, characterized by features of portal hypertension (esophageal varices, nonmalignant ascites, porto-venous collaterals), splenomegaly, patent portal, and hepatic veins and no clinical and histological signs of cirrhosis. Physicians should learn to look for this condition in a number of clinical settings, including cryptogenic cirrhosis, a disease known to be associated with INCPH, drug administration, and even chronic alterations in liver function tests. Once INCPH is clinically suspected, liver histology becomes mandatory for the correct diagnosis. However, pathologists should be familiar with the histological features of INCPH, especially in cases in which histology is not only requested to exclude liver cirrhosis.

  9. A new technique for rendering complex portals.

    PubMed

    Lowe, Nick; Datta, Amitava

    2005-01-01

    In this paper, we identify a general paradigm for portal-based rendering and present an image-space algorithm for rendering complex portals. Our general paradigm is an abstraction of portal-based rendering that is independent of scene geometry. It provides a framework for flexible and dynamic scene composition by connecting cells with transformative portals. Our rendering algorithm maintains a visible volume in image-space and uses fragment culling to discard fragments outside of this volume. We discuss our implementation in OpenGL and present results that show it provides correct rendering of complex portals at interactive rates on current hardware. We believe that our work will be useful in many applications that require a means of creating dynamic and meaningful visual connections between different sets of data.

  10. The BLUEPRINT Data Analysis Portal.

    PubMed

    Fernández, José María; de la Torre, Victor; Richardson, David; Royo, Romina; Puiggròs, Montserrat; Moncunill, Valentí; Fragkogianni, Stamatina; Clarke, Laura; Flicek, Paul; Rico, Daniel; Torrents, David; Carrillo de Santa Pau, Enrique; Valencia, Alfonso

    2016-11-23

    The impact of large and complex epigenomic datasets on biological insights or clinical applications is limited by the lack of accessibility by easy, intuitive, and fast tools. Here, we describe an epigenomics comparative cyber-infrastructure (EPICO), an open-access reference set of libraries to develop comparative epigenomic data portals. Using EPICO, large epigenome projects can make available their rich datasets to the community without requiring specific technical skills. As a first instance of EPICO, we implemented the BLUEPRINT Data Analysis Portal (BDAP). BDAP provides a desktop for the comparative analysis of epigenomes of hematopoietic cell types based on results, such as the position of epigenetic features, from basic analysis pipelines. The BDAP interface facilitates interactive exploration of genomic regions, genes, and pathways in the context of differentiation of hematopoietic lineages. This work represents initial steps toward broadly accessible integrative analysis of epigenomic data across international consortia. EPICO can be accessed at https://github.com/inab, and BDAP can be accessed at http://blueprint-data.bsc.es.

  11. Araport: the Arabidopsis information portal.

    PubMed

    Krishnakumar, Vivek; Hanlon, Matthew R; Contrino, Sergio; Ferlanti, Erik S; Karamycheva, Svetlana; Kim, Maria; Rosen, Benjamin D; Cheng, Chia-Yi; Moreira, Walter; Mock, Stephen A; Stubbs, Joseph; Sullivan, Julie M; Krampis, Konstantinos; Miller, Jason R; Micklem, Gos; Vaughn, Matthew; Town, Christopher D

    2015-01-01

    The Arabidopsis Information Portal (https://www.araport.org) is a new online resource for plant biology research. It houses the Arabidopsis thaliana genome sequence and associated annotation. It was conceived as a framework that allows the research community to develop and release 'modules' that integrate, analyze and visualize Arabidopsis data that may reside at remote sites. The current implementation provides an indexed database of core genomic information. These data are made available through feature-rich web applications that provide search, data mining, and genome browser functionality, and also by bulk download and web services. Araport uses software from the InterMine and JBrowse projects to expose curated data from TAIR, GO, BAR, EBI, UniProt, PubMed and EPIC CoGe. The site also hosts 'science apps,' developed as prototypes for community modules that use dynamic web pages to present data obtained on-demand from third-party servers via RESTful web services. Designed for sustainability, the Arabidopsis Information Portal strategy exploits existing scientific computing infrastructure, adopts a practical mixture of data integration technologies and encourages collaborative enhancement of the resource by its user community. © The Author(s) 2014. Published by Oxford University Press on behalf of Nucleic Acids Research.

  12. The UCSC Ebola Genome Portal

    PubMed Central

    Haeussler, Maximilian; Karolchik, Donna; Clawson, Hiram; Raney, Brian J; Rosenbloom, Kate R.; Fujita, Pauline A.; Hinrichs, Angie S.; Speir, Matthew L; Eisenhart, Chris; Zweig, Ann S.; Haussler, David; Kent, W. James

    2014-01-01

    Background: With the Ebola epidemic raging out of control in West Africa, there has been a flurry of research into the Ebola virus, resulting in the generation of much genomic data. Methods: In response to the clear need for tools that integrate multiple strands of research around molecular sequences, we have created the University of California Santa Cruz (UCSC) Ebola Genome Browser, an adaptation of our popular UCSC Genome Browser web tool, which can be used to view the Ebola virus genome sequence from GenBank and nearly 30 annotation tracks generated by mapping external data to the reference sequence. Significant annotations include a multiple alignment comprising 102 Ebola genomes from the current outbreak, 56 from previous outbreaks, and 2 Marburg genomes as an outgroup; a gene track curated by NCBI; protein annotations curated by UniProt and antibody-binding epitopes curated by IEDB. We have extended the Genome Browser’s multiple alignment color-coding scheme to distinguish mutations resulting from non-synonymous coding changes, synonymous changes, or changes in untranslated regions. Discussion: Our Ebola Genome portal at http://genome.ucsc.edu/ebolaPortal/ links to the Ebola virus Genome Browser and an aggregate of useful information, including a collection of Ebola antibodies we are curating. PMID:25685613

  13. Araport: the Arabidopsis Information Portal

    PubMed Central

    Krishnakumar, Vivek; Hanlon, Matthew R.; Contrino, Sergio; Ferlanti, Erik S.; Karamycheva, Svetlana; Kim, Maria; Rosen, Benjamin D.; Cheng, Chia-Yi; Moreira, Walter; Mock, Stephen A.; Stubbs, Joseph; Sullivan, Julie M.; Krampis, Konstantinos; Miller, Jason R.; Micklem, Gos; Vaughn, Matthew; Town, Christopher D.

    2015-01-01

    The Arabidopsis Information Portal (https://www.araport.org) is a new online resource for plant biology research. It houses the Arabidopsis thaliana genome sequence and associated annotation. It was conceived as a framework that allows the research community to develop and release ‘modules’ that integrate, analyze and visualize Arabidopsis data that may reside at remote sites. The current implementation provides an indexed database of core genomic information. These data are made available through feature-rich web applications that provide search, data mining, and genome browser functionality, and also by bulk download and web services. Araport uses software from the InterMine and JBrowse projects to expose curated data from TAIR, GO, BAR, EBI, UniProt, PubMed and EPIC CoGe. The site also hosts ‘science apps,’ developed as prototypes for community modules that use dynamic web pages to present data obtained on-demand from third-party servers via RESTful web services. Designed for sustainability, the Arabidopsis Information Portal strategy exploits existing scientific computing infrastructure, adopts a practical mixture of data integration technologies and encourages collaborative enhancement of the resource by its user community. PMID:25414324

  14. Start at the End ...

    ERIC Educational Resources Information Center

    Goldsworthy, Anne

    2005-01-01

    Start at the end; that's the way to improve children's plans for investigations. Strange as it may seem, there are times when beginning at the beginning of an investigation is not the best way to start things off. To give children the opportunity to ask questions and plan what to do, sometimes it is best to get them first to consider others' data…

  15. Head Start. Fact Sheet.

    ERIC Educational Resources Information Center

    Administration for Children, Youth, and Families (DHHS), Washington, DC.

    Head Start is a national program that provides comprehensive developmental services for preschool children (ages 3 to 5) from low-income families and social services for their families. Approximately 1,400 community-based nonprofit organizations and school systems develop programs to meet specific needs. Head Start began in 1965 in the Office of…

  16. Science Starts Early.

    ERIC Educational Resources Information Center

    Gould, J. Christine; Weeks, Valerie; Evans, Sarah

    2003-01-01

    This article describes the Science Starts Early program, which is designed to expose young, potentially gifted children, particularly girls, to basic scientific principles that will allow them to explore the world around them. A Science Starts Early program curriculum is described and examples are provided of experiments. (Contains references.)…

  17. Starting School in August

    ERIC Educational Resources Information Center

    Chmelynski, Carol

    2006-01-01

    In this article, the author discusses the controversial decision of the school board from the Broward County, Florida to start the school year on August 9. School boards across the country that are grappling with the idea of starting school earlier in the year are increasingly running up against strong opposition from parents. In many districts,…

  18. START II and beyond

    SciTech Connect

    Mendelsohn, J.

    1996-10-01

    The second Strategic Arms Reduction Treaty (START II), signed by President George Bush and Russian President Boris yeltsin in January 1993, was ratified by the US Senate in January 1996 by and overwhelming vote of 87-4. The treaty, which will slash the strategic arsenals of the United States and Russia to 3,000-3,500 warheads each, is now before the two houses of the Russian Parliament (the Duma and the Federation Council) awaiting ratification amidst confusion and criticism. The Yeltsin administration supports START II and spoke in favor of Russian ratification after the Senate acted on the treaty. The Russian foreign minister and the Russian military believed that START II should be ratified as soon as possible. During the recent presidential campaign and his subsequent illness, President Yeltsin has been virtually silent on the subject of START II and nuclear force reductions. Without a push from the Yeltsin administration, the tone among Duma members, has been sharply critical of START II. Voices across the Russian political spectrum have questioned the treaty and linked it to constraints on highly capable theater missile defense (TMD) systems and the continued viability of the ABM Treaty. And urged that START II ratification be held hostage until NATO abandons its plans to expand eastward. Although the START I and START II accords have generated the momentum, opportunity and expectation-both domestic and international-for additional nuclear arms reductions, the current impasse over ratification in the Duma has cast a shadow over the future of START II and raised questions about the chances for any follow-on (START III) agreement.

  19. Portal dosimetry in wedged beams.

    PubMed

    Spreeuw, Hanno; Rozendaal, Roel; Camargo, Priscilla; Mans, Anton; Wendling, Markus; Olaciregui-Ruiz, Igor; Sonke, Jan-Jakob; Van Herk, Marcel; Mijnheer, Ben

    2015-05-08

    Portal dosimetry using electronic portal imaging devices (EPIDs) is often applied to verify high-energy photon beam treatments. Due to the change in photon energy spectrum, the resulting dose values are, however, not very accurate in the case of wedged beams if the pixel-to-dose conversion for the situation without wedge is used. A possible solution would be to consider a wedged beam as another photon beam quality requiring separate beam modeling of the dose calculation algorithm. The aim of this study was to investigate a more practical solution: to make aSi EPID-based dosimetry models also applicable for wedged beams without an extra commissioning effort of the parameters of the model. For this purpose two energy-dependent wedge multiplication factors have been introduced to be applied for portal images taken with and without a patient/phantom in the beam. These wedge multiplication factors were derived from EPID and ionization chamber measurements at the EPID level for wedged and nonwedged beams, both with and without a polystyrene slab phantom in the beam. This method was verified for an EPID dosimetry model used for wedged beams at three photon beam energies (6, 10, and 18 MV) by comparing dose values reconstructed in a phantom with data provided by a treatment planning system (TPS), as a function of field size, depth, and off-axis distance. Generally good agreement, within 2%, was observed for depths between dose maximum and 15 cm. Applying the new model to EPID dose measurements performed during ten breast cancer patient treatments with wedged 6 MV photon beams showed that the average isocenter underdosage of 5.3% was reduced to 0.4%. Gamma-evaluation (global 3%/3 mm) of these in vivo data showed an increase in percentage of points with γ ≤ 1 from 60.2% to 87.4%, while γmean reduced from 1.01 to 0.55. It can be concluded that, for wedged beams, the multiplication of EPID pixel values with an energy-dependent correction factor provides good agreement

  20. BSD Portals for LINUX 2.0

    NASA Technical Reports Server (NTRS)

    McNab, A. David; woo, Alex (Technical Monitor)

    1999-01-01

    Portals, an experimental feature of 4.4BSD, extend the file system name space by exporting certain open () requests to a user-space daemon. A portal daemon is mounted into the file name space as if it were a standard file system. When the kernel resolves a pathname and encounters a portal mount point, the remainder of the path is passed to the portal daemon. Depending on the portal "pathname" and the daemon's configuration, some type of open (2) is performed. The resulting file descriptor is passed back to the kernel which eventually returns it to the user, to whom it appears that a "normal" open has occurred. A proxy portalfs file system is responsible for kernel interaction with the daemon. The overall effect is that the portal daemon performs an open (2) on behalf of the kernel, possibly hiding substantial complexity from the calling process. One particularly useful application is implementing a connection service that allows simple scripts to open network sockets. This paper describes the implementation of portals for LINUX 2.0.

  1. Portal vein aneurysm: What to know.

    PubMed

    Laurenzi, Andrea; Ettorre, Giuseppe Maria; Lionetti, Raffaella; Meniconi, Roberto Luca; Colasanti, Marco; Vennarecci, Giovanni

    2015-11-01

    Portal vein aneurysm is an unusual vascular dilatation of the portal vein, which was first described by Barzilai and Kleckner in 1956 and since then less than 200 cases have been reported. The aim of this article is to provide an overview of the international literature to better clarify various aspects of this rare nosological entity and provide clear evidence-based summary, when available, of the clinical and surgical management. A systematic literature search of the Pubmed database was performed for all articles related to portal vein aneurysm. All articles published from 1956 to 2014 were examined for a total of 96 reports, including 190 patients. Portal vein aneurysm is defined as a portal vein diameter exceeding 1.9 cm in cirrhotic patients and 1.5 cm in normal livers. It can be congenital or acquired and portal hypertension represents the main cause of the acquired version. Surgical indication is considered in case of rupture, thrombosis or symptomatic aneurysms. Aneurysmectomy and aneurysmorrhaphy are considered in patients with normal liver, while shunt procedures or liver transplantation are the treatment of choice in case of portal hypertension. Being such a rare vascular entity its management should be reserved to high-volume tertiary hepato-biliary centres.

  2. [Preduodenal portal vein (author's transl)].

    PubMed

    Tovar, J A; Benavent, M; Bachiller, C; Díez-Pardo, J A

    1978-01-01

    Three cases of preduodenal portal vein (PDPV) observed in newborns and young infants are reported. In two patients the diagnosis was made during operations for duodenal stenosis and in the remaining one while operating for midgut volvulus and necrosis. In no case was the PDPV responsible for the clinical picture but in all three patients it was accompanied by other causes of obstruction: annular pancreas, extrinsic adhesive bands and malrotation. In one case there was also an asplenia, and polisplenia was present in another one. Both had malrotation and some degree of abnormal visceral asimmetry. The incidence of associated malformations in 52 previously reported cases is analyzed, and the more convincing embriological explanation for this anomaly is commented upon.

  3. Psychiatric Advance Directives: Getting Started

    MedlinePlus

    ... More... Home Getting Started National Resource Center on Psychiatric Advance Directives - Getting Started Getting Started Psychiatric advance directives (PADs) are relatively new legal instruments ...

  4. The Seed Proteome Web Portal

    PubMed Central

    Galland, Marc; Job, Dominique; Rajjou, Loïc

    2012-01-01

    The Seed Proteome Web Portal (SPWP; http://www.seed-proteome.com/) gives access to information both on quantitative seed proteomic data and on seed-related protocols. Firstly, the SPWP provides access to the 475 different Arabidopsis seed proteins annotated from two dimensional electrophoresis (2DE) maps. Quantitative data are available for each protein according to their accumulation profile during the germination process. These proteins can be retrieved either in list format or directly on scanned 2DE maps. These proteomic data reveal that 40% of seed proteins maintain a stable abundance over germination, up to radicle protrusion. During sensu stricto germination (24 h upon imbibition) about 50% of the proteins display quantitative variations, exhibiting an increased abundance (35%) or a decreasing abundance (15%). Moreover, during radicle protrusion (24–48 h upon imbibition), 41% proteins display quantitative variations with an increased (23%) or a decreasing abundance (18%). In addition, an analysis of the seed proteome revealed the importance of protein post-translational modifications as demonstrated by the poor correlation (r2 = 0.29) between the theoretical (predicted from Arabidopsis genome) and the observed protein isoelectric points. Secondly, the SPWP is a relevant technical resource for protocols specifically dedicated to Arabidopsis seed proteome studies. Concerning 2D electrophoresis, the user can find efficient procedures for sample preparation, electrophoresis coupled with gel analysis, and protein identification by mass spectrometry, which we have routinely used during the last 12 years. Particular applications such as the detection of oxidized proteins or de novo synthesized proteins radiolabeled by [35S]-methionine are also given in great details. Future developments of this portal will include proteomic data from studies such as dormancy release and protein turnover through de novo protein synthesis analyses during germination. PMID

  5. Progression of Thrombus in Portal Vein, Superior Mesenteric Vein, and Splenic Vein Even on Anticoagulation in a Patient with Ascending Colonic Malignancy with Liver Metastasis: Portal Vein Thrombosis versus Portal Vein Tumor Thrombosis.

    PubMed

    Sule, Ashish; Borja, Annamarie; Chin, Tay Jam

    2016-12-01

    Portal vein thrombosis (PVT) in a setting of liver metastasis is not easy to treat as it may be portal vein tumor thrombus (PVTT). A 77-year-old male patient was diagnosed as ascending colon carcinoma, underwent right hemicolectomy in 1991 with a recurrence in July 2009. In August 2009, he underwent computed tomography (CT) scan of the abdomen which showed evidence of superior mesenteric vein thrombosis with no liver metastasis. He was started with anticoagulation and decision was to treat long term. He was admitted with mesenteric artery ischemic symptoms in February 2012 on anticoagulation. CT scan abdomen and pelvis in February 2012 showed tumor thrombus involving the superior mesenteric vein, portal vein, and splenic vein with hepatic metastasis. His tumor marker chorioembryonic antigen was 34 µg/L. He was continued on anticoagulation. A repeat CT scan abdomen after 2 years (in January 2014) showed, increase in size of hepatic metastasis, extensive thrombus involving the superior mesenteric vein, portal vein, and splenic vein with collaterals. Mesentery was congested due to extensive superior mesenteric vein thrombus. He finally succumbed in June 2014. It is very important to differentiate PVT from PVTT as the prognosis is different. PVTT progresses despite of long-term anticoagulation with poor prognosis.

  6. Portal hypertension: pathophysiology, diagnosis and management.

    PubMed

    Bloom, S; Kemp, W; Lubel, J

    2015-01-01

    Portal hypertension is an important complication of liver disease. As a result of elevated pressures within the portal vein several complications can arise, including the development of oesophageal and gastric varices, ascites, hepatic encephalopathy as well as complications secondary to circulatory dysfunction, such as hepatorenal syndrome, portopulmonary syndrome and hepatopulmonary syndrome. This review outlines the pathogenesis and diagnosis of portal hypertension and outlines the management of these various important clinical sequelae. The management of oesophageal and gastric varices is particularly important, and both the emergency management together with prophylactic management of this condition are described.

  7. Percutaneous Portal Vein Access and Transhepatic Tract Hemostasis

    PubMed Central

    Saad, Wael E. A.; Madoff, David C.

    2012-01-01

    Percutaneous portal vein interventions require minimally invasive access to the portal venous system. Common approaches to the portal vein include transjugular hepatic vein to portal vein access and direct transhepatic portal vein access. A major concern of the transhepatic route is the risk of postprocedural bleeding, which is increased when patients are anticoagulated or receiving pharmaceutical thrombolytic therapy. Thus percutaneous portal vein access and subsequent closure are important technical parts of percutaneous portal vein procedures. At present, various techniques have been used for either portal access or subsequent transhepatic tract closure and hemostasis. Regardless of the method used, meticulous technique is required to achieve the overall safety and effectiveness of portal venous procedures. This article reviews the various techniques of percutaneous transhepatic portal vein access and the various closure and hemostatic methods used to reduce the risk of postprocedural bleeding. PMID:23729976

  8. Zolmitriptan: A Novel Portal Hypotensive Agent Which Synergizes with Propranolol in Lowering Portal Pressure

    PubMed Central

    Reboredo, Mercedes; Chang, Haisul C. Y.; Barbero, Roberto; Rodríguez-Ortigosa, Carlos M.; Pérez-Vizcaíno, Francisco; Morán, Asunción; García, Mónica; Banales, Jesús M.; Carreño, Norberto; Alegre, Félix; Herrero, Ignacio; Quiroga, Jorge

    2013-01-01

    Objective Only a limited proportion of patients needing pharmacological control of portal hypertension are hemodynamic responders to propranolol. Here we analyzed the effects of zolmitriptan on portal pressure and its potential interaction with propranolol. Methods Zolmitriptan, propranolol or both were tested in two rat models of portal hypertension: common bile duct ligation (CBDL) and CCl4-induced cirrhosis. In these animals we measured different hemodynamic parameters including portal venous pressure, arterial renal flow, portal blood flow and cardiac output. We also studied the changes in superior mesenteric artery perfusion pressure and in arterial wall cAMP levels induced by zolmitriptan, propranolol or both. Moreover, we determined the effect of splanchnic sympathectomy on the response of PVP to zolmitriptan. Results In both models of portal hypertension zolmitriptan induced a dose-dependent transient descent of portal pressure accompanied by reduction of portal flow with only slight decrease in renal flow. In cirrhotic rats, splanchnic sympathectomy intensified and prolonged zolmitriptan-induced portal pressure descent. Also, propranolol caused more intense and durable portal pressure fall when combined with zolmitriptan. Mesenteric artery perfusion pressure peaked for about 1 min upon zolmitriptan administration but showed no change with propranolol. However propranolol enhanced and prolonged the elevation in mesenteric artery perfusion pressure induced by zolmitriptan. In vitro studies showed that propranolol prevented the inhibitory effects of β2-agonists on zolmitriptan-induced vasoconstriction and the combination of propranolol and zolmitriptan significantly reduced the elevation of cAMP caused by β2-agonists. Conclusion Zolmitriptan reduces portal hypertension and non-selective beta-blockers can improve this effect. Combination therapy deserves consideration for patients with portal hypertension failing to respond to non-selective beta

  9. Portal-systemic encephalopathy in two patients without liver cirrhosis and portal hypertension.

    PubMed

    K C, Sudhamshu; Matsutani, Shoichi; Maruyama, Hitoshi; Fukamachi, Tadahiro; Nomoto, Hiromasa; Akiike, Taro; Ebara, Masaaki; Saisho, Hiromitsu

    2002-06-01

    The portal-systemic venous shunt is uncommon in patients without portal hypertension. We present two cases of portal-systemic encephalopathy due to extrahepatic shunt without liver cirrhosis and portal hypertension. Two women in their seventies were admitted to our hospital because of recurrent episodes of altered sensorium, drowsiness, slurred speech, disorientation, asterexis and high blood ammonia levels. There was no history of abdominal surgery or abdominal trauma. Clinical examination revealed no signs of portal hypertension or stigmata of chronic liver diseases. Brain CT and MRI scanning were unremarkable except for a high intensity signal in the basal ganglia on T1 weighted MRI images. Laboratory tests were almost normal except for the hyperammonemia occurring on several occasions. There was no evidence of liver cirrhosis by imaging. However, color Doppler showed an extra-hepatic shunt in both patients and pulsed Doppler showed decreased velocity and volume of the portal venous flow. These sonographic findings were confirmed during percutaneous transhepatic portography (PTP). Portal pressures measured during PTP were 9 and 11 mmHg. Needle biopsy ruled out idiopathic portal hypertension and liver cirrhosis. The diagnosis was portal systemic encephalopathy due to extra-hepatic portosystemic venous shunting. Both patients were treated by embolization of the shunting vessel with metallic coils.

  10. MR imaging in idiopathic portal hypertension.

    PubMed

    Arai, K; Matsui, O; Kadoya, M; Yoshikawa, J; Gabata, T; Takashima, T; Kobayashi, K; Unoura, M

    1991-01-01

    Magnetic resonance imaging was performed in four patients with biopsy proven idiopathic portal hypertension (IPH). The MR images show proximity of medium-sized intrahepatic vessels to each other and to the liver surface in all patients. Small vessels running parallel to the second order branches of the intrahepatic portal vein are commonly seen as collateral pathways of portal flow in IPH and were seen in two patients. These findings were clearly demonstrated on gradient-recalled echo images. Intrahepatic periportal abnormal high intensity was seen in all patients on T2-weighted images and may reflect abnormalities in the portal tracts such as fibrous enlargement and increase in the number of vascular channels. Tiny low-intensity nodules sometimes observed in liver cirrhosis were not seen in any patient. Magnetic resonance was a useful noninvasive method in the differentiation of IPH from liver cirrhosis.

  11. [Emphysematous gastritis with concomitant portal venous air].

    PubMed

    Jeong, Min Yeong; Kim, Jin Il; Kim, Jae Young; Kim, Hyun Ho; Jo, Ik Hyun; Seo, Jae Hyun; Kim, Il Kyu; Cheung, Dae Young

    2015-02-01

    Emphysematous gastritis is a rare form of gastritis caused by infection of the stomach wall by gas forming bacteria. It is a very rare condition that carries a high mortality rate. Portal venous gas shadow represents elevation of intestinal luminal pressure which manifests as emphysematous gastritis or gastric emphysema. Literature reviews show that the mortality rate is especially high when portal venous gas shadow is present on CT scan. Until recently, the treatment of emphysematous gastritis has been immediate surgical intervention. However, there is a recent trend of avoiding surgery because of the frequent occurrence of post-operative complications such as anastomosis leakage. In addition, aggressive surgical treatment has failed to show significant improvement in prognosis. Recently, the authors experienced a case of emphysematous gastritis accompanied by portal venous gas which was treated successfully by conservative treatment without immediate surgical intervention. Herein, we present a case of emphysematous gastritis with concomitant portal venous air along with literature review.

  12. The Fukushima Daiichi Accident Study Information Portal

    SciTech Connect

    Shawn St. Germain; Curtis Smith; David Schwieder; Cherie Phelan

    2012-11-01

    This paper presents a description of The Fukushima Daiichi Accident Study Information Portal. The Information Portal was created by the Idaho National Laboratory as part of joint NRC and DOE project to assess the severe accident modeling capability of the MELCOR analysis code. The Fukushima Daiichi Accident Study Information Portal was created to collect, store, retrieve and validate information and data for use in reconstructing the Fukushima Daiichi accident. In addition to supporting the MELCOR simulations, the Portal will be the main DOE repository for all data, studies and reports related to the accident at the Fukushima Daiichi nuclear power station. The data is stored in a secured (password protected and encrypted) repository that is searchable and accessible to researchers at diverse locations.

  13. 23. INCLINED END POST / VERTICAL / DIAGONAL / PORTAL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    23. INCLINED END POST / VERTICAL / DIAGONAL / PORTAL BRACING DETAIL. VIEW TO SOUTHEAST. - Abraham Lincoln Memorial Bridge, Spanning Missouri River on Highway 30 between Nebraska & Iowa, Blair, Washington County, NE

  14. Single Portal Knee Arthroscopy: 2015 Technique Update

    PubMed Central

    Cooper, Daniel E.

    2016-01-01

    A technique of single portal knee arthroscopy was reported in 2013. Using a parallel working cannula assembled to the arthroscope cannula, the instruments are passed into the joint in line with the arthroscope. The original technique video in Arthroscopy Techniques shows the use of a 25 mm tube assembly with a parallel portal through which biters and proximally bent cutter instruments are used to perform procedures in the knee. This 2015 technical update shows the current preferred and most versatile method of single portal knee arthroscopy using a parallel locking and rotating hub for passage of biters and double-bend cutters. The video shows adequate completion of a partial meniscectomy using only 1 portal. PMID:27073772

  15. The International Human Epigenome Consortium Data Portal.

    PubMed

    Bujold, David; Morais, David Anderson de Lima; Gauthier, Carol; Côté, Catherine; Caron, Maxime; Kwan, Tony; Chen, Kuang Chung; Laperle, Jonathan; Markovits, Alexei Nordell; Pastinen, Tomi; Caron, Bryan; Veilleux, Alain; Jacques, Pierre-Étienne; Bourque, Guillaume

    2016-11-23

    The International Human Epigenome Consortium (IHEC) coordinates the production of reference epigenome maps through the characterization of the regulome, methylome, and transcriptome from a wide range of tissues and cell types. To define conventions ensuring the compatibility of datasets and establish an infrastructure enabling data integration, analysis, and sharing, we developed the IHEC Data Portal (http://epigenomesportal.ca/ihec). The portal provides access to >7,000 reference epigenomic datasets, generated from >600 tissues, which have been contributed by seven international consortia: ENCODE, NIH Roadmap, CEEHRC, Blueprint, DEEP, AMED-CREST, and KNIH. The portal enhances the utility of these reference maps by facilitating the discovery, visualization, analysis, download, and sharing of epigenomics data. The IHEC Data Portal is the official source to navigate through IHEC datasets and represents a strategy for unifying the distributed data produced by international research consortia.

  16. Recent trends in print portals and Web2Print applications

    NASA Astrophysics Data System (ADS)

    Tuijn, Chris

    2009-01-01

    case, the ordering process is, of course, not fully automated. Standardized products, on the other hand, are easily identified and the cost charged to the print buyer can be retrieved from predefined price lists. Typically, higher volumes will result in more attractive prices. An additional advantage of this type of products is that they are often defined such that they can be produced in bulk using conventional printing techniques. If one wants to automate the ganging, a connection must be established between the on-line ordering and the production planning system. (For digital printing, there typically is no need to gang products since they can be produced more effectively separately.) Many of the on-line print solutions support additional features also available in general purpose e-commerce sites. We here think of the availability of virtual shopping baskets, the connectivity with payment gateways and the support of special facilities for interfacing with courier services (bar codes, connectivity to courier web sites for tracking shipments etc.). Supporting these features also assumes an intimate link with the print production system. Another development that goes beyond the on-line ordering of printed material and the submission of full pages and/or documents, is the interactive, on-line definition of the content itself. Typical applications in this respect are, e.g., the creation of business cards, leaflets, letter heads etc. On a more professional level, we also see that more and more publishing organizations start using on-line publishing platforms to organize their work. These professional platforms can also be connected directly to printing portals and thus enable extra automation. In this paper, we will discuss for each of the different applications presented above (traditional Print Portals, Web2Print applications and professional, on-line publishing platforms) how they interact with prepress and print production systems and how they contribute to the

  17. Efficacy and Safety of Direct-Acting Oral Anticoagulants Use in Acute Portal Vein Thrombosis Unrelated to Cirrhosis.

    PubMed

    Nery, Filipe; Valadares, Diana; Morais, Sara; Gomes, Manuel Teixeira; De Gottardi, Andrea

    2017-04-01

    In acute portal vein thrombosis (APVT) unrelated to cirrhosis, anticoagulant therapy is classically started with low molecular weight heparin or vitamin K antagonists. New direct-acting oral anticoagulants (DOACs) are used in the treatment of venous thrombosis outside the splanchnic vascular bed, but not in the latter. We report a young female with APVT occurring in a non-cirrhotic liver linked to heterozygosity of factor V-Leiden and prothrombin G20210A gene mutations. Rivaroxaban was started, with total recanalization of the left and partial recanalization of the right portal vein branches, without complications. New DOACs do not need daily subcutaneous injections nor routinely blood coagulation control tests, making its use attractive, eventually increasing patient's compliance. If proved to be safe and effective in the future studies, its use may be extended to PVT treatment. This case shows that rivaroxaban was safe, not only prevented the extension of thrombosis in the portal tract, but also resolved PVT, at least partially.

  18. Heterotopic Auxiliary Liver Transplantation With Portal Flow

    PubMed Central

    Lorente, Laureano; Aller, Maria Angeles; Ispizua, José Ignacio; Rodriguez, José; Durán, Hipólito

    1990-01-01

    One of the causes of auxiliary liver transplantation failure is the inter-liver competition between the host liver and the graft for the hepatotrophic factors of the portal blood. We have developed an experimental model of heterotopic partial (30%) liver isotransplant using Wistar rats so as to study this competition. Splenoportography and dissection demonstrate the existence of collateral circulation. The collaterals at 90 days post-transplant (PT) consisted of veins from the portal vein to the host liver (PR), paraesophageal veins (PE) and splenorenal veins (SR). At 60 days P.T., PR and SR veins but not PE ones appeared, and at 30 days P.T., there were only PR veins. Graft atrophy at 90 days P.T. was associated with a severe degree of bile duct proliferation. The gradual development of portal hypertension causes porto-systemic collateral circulation and the graft loses the portal hepatotrophic factors. The late development of the portal hypertension and the biliary proliferation could be caused by the hepatic arterial ischemia in this experimental model. Thus, as has been described in the orthotopic liver tansplantation, the heterotopic one might require a double vascularization, both portal and arterial. PMID:2278927

  19. Blogs: Getting Started

    ERIC Educational Resources Information Center

    Dyrud, Marilyn A.; Worley, Rebecca B.; Schultz, Benjamin

    2005-01-01

    Blogs are communication tools, they serve as vehicles to transmit messages. Before deciding to blog, one needs to devise a strategy on how this medium will fit in with his or her communication needs. This will also help later in deciding which features one will need to include in his or her blog. This article discusses ways on how to start and…

  20. Is Head Start Dying?

    ERIC Educational Resources Information Center

    Sherman, Ann; And Others

    1971-01-01

    Analysis of problems faced by Head Start and its present status includes a review of its transfer from O.E.O. to H.E.W., its extensions, the Westinghouse Report, and other studies and articles. Decline in public interest and support is noted. (KW)

  1. Starting in School

    ERIC Educational Resources Information Center

    Albertine, Susan

    2012-01-01

    Through its signature initiative, Liberal Education and America's Promise (LEAP), the Association of American Colleges and Universities (AAC&U) is promoting a vision for learning that begins in school: Starting in School . . . Rigorous and rich curriculum focused on the essential learning outcomes; comprehensive, individualized, and…

  2. TARCOG Home Start Program.

    ERIC Educational Resources Information Center

    Top of Alabama Regional Council of Governments, Huntsville. Human Resources Program.

    This report describes the Top of Alabama Regional Council of Governments (TARCOG) Home Start Program. Five aspects of the program are presented. (1) The nutrition component is aimed at helping parents make the best use of food resources through good planning, buying, and cooking. (2) The health program involves provision of medical and dental…

  3. Mapping Sure Start Scotland.

    ERIC Educational Resources Information Center

    Cunningham-Burley, Sarah; Jamieson, Lynn; Morton, Sarah; Adam, Rachel; McFarlane, Vivienne

    Sure Start Scotland is part of a broader action program for children from birth to age three and their families with the objectives of improving children's social and emotional development, health, and ability to learn, as well as strengthening families and communities. This summary report details a "mapping" project to identify services…

  4. Starting Trees from Cuttings.

    ERIC Educational Resources Information Center

    Kramer, David C.

    1983-01-01

    Describes a procedure for starting tree cuttings from woody plants, explaining "lag time," recommending materials, and giving step-by-step instructions for rooting and planting. Points out species which are likely candidates for cuttings and provides tips for teachers for developing a unit. (JM)

  5. Starting in School

    ERIC Educational Resources Information Center

    Albertine, Susan

    2012-01-01

    Through its signature initiative, Liberal Education and America's Promise (LEAP), the Association of American Colleges and Universities (AAC&U) is promoting a vision for learning that begins in school: Starting in School . . . Rigorous and rich curriculum focused on the essential learning outcomes; comprehensive, individualized, and…

  6. Project Right Start.

    ERIC Educational Resources Information Center

    Jameson, Barbara B.

    The University-Urban Interface Program (UUIP) is a federally-funded project to study an urban university's community relations efforts and innovations, their successes and failures. This is a study of one of the UUIP areas of priority, Project Right Start, a plan for creating a facility for the detection and treatment of psychological problems in…

  7. Smart Start Evaluation Plan.

    ERIC Educational Resources Information Center

    Bryant, Donna; Burchinal, Margaret; Buysse, Virginia; Kotch, Jonathan; Maxwell, Kelly; Neenan, Peter; Noblit, George; Orthner, Dennis; Peisner-Feinberg, Ellen; Telfair, Joseph

    Smart Start is North Carolina's partnership between state government and local leaders, service providers, and families to better serve children under 6 years of age and their families. This report describes the comprehensive plan to evaluate the state and local goals and objectives of the program, focusing on the components addressing the…

  8. Home Start Curriculum Guide.

    ERIC Educational Resources Information Center

    Roggman, Lori; And Others

    This curriculum guide contains monthly work plans and weekly activity units for a Home Start Program. Emphasis is placed on the importance of the home, the family unit, and the education and development of young children by their own parents. Yearly goals include concern for the following: physical and dental health, nutrition, mental health and…

  9. Home Start Evaluation Study.

    ERIC Educational Resources Information Center

    High/Scope Educational Research Foundation, Ypsilanti, MI.

    Case studies of eight Home Start programs are given as the third section of an evaluation study. Communities involved are Binghamton, New York; Franklin, North Carolina; Cleveland, Ohio; Harrogate, Tennessee; Houston, Texas; Weslaco, Texas; Millville, Utah; Parkersburg, West Virginia. Although each study varies in format, each describes in detail…

  10. Improvement of Service Searching Algorithm in the JVO Portal Site

    NASA Astrophysics Data System (ADS)

    Eguchi, S.; Shirasak, Y.; Komiya, Y.; Ohishi, M.; Mizumoto, Y.; Ishihara, Y.; Tsutsumi, J.; Hiyama, T.; Nakamoto, H.; Sakamoto, M.

    2012-09-01

    The Virtual Observatory (VO) consists of a huge amount of astronomical databases which contain both of theoretical and observational data obtained with various methods, telescopes, and instruments. Since VO provides raw and processed observational data, astronomers can concentrate themselves on their scientific interests without awareness of instruments; all they have to know is which service provides their interested data. On the other hand, services on the VO system will be better used if queries can be made by means of telescopes, wavelengths, and object types; currently it is difficult for newcomers to find desired ones. We have recently started a project towards improving the data service functionality and usability on the Japanese VO (JVO) portal site. We are now working on implementation of a function to automatically classify all services on VO in terms of telescopes and instruments without referring to the facility and instrument keywords, which are not always filled in most cases. In the paper, we report a new algorithm towards constructing the facility and instrument keywords from other information of a service, and discuss its effectiveness. We also propose a new user interface of the portal site with this algorithm.

  11. Electronic Health Record Patient Portal Adoption by Health Care Consumers: An Acceptance Model and Survey

    PubMed Central

    2016-01-01

    Background The future of health care delivery is becoming more citizen centered, as today’s user is more active, better informed, and more demanding. Worldwide governments are promoting online health services, such as electronic health record (EHR) patient portals and, as a result, the deployment and use of these services. Overall, this makes the adoption of patient-accessible EHR portals an important field to study and understand. Objective The aim of this study is to understand the factors that drive individuals to adopt EHR portals. Methods We applied a new adoption model using, as a starting point, Ventkatesh's Unified Theory of Acceptance and Use of Technology in a consumer context (UTAUT2) by integrating a new construct specific to health care, a new moderator, and new relationships. To test the research model, we used the partial least squares (PLS) causal modelling approach. An online questionnaire was administrated. We collected 360 valid responses. Results The statistically significant drivers of behavioral intention are performance expectancy (beta=.200; t=3.619), effort expectancy (beta=.185; t=2.907), habit (beta=.388; t=7.320), and self-perception (beta=.098; t=2.285). The predictors of use behavior are habit (beta=0.206; t=2.752) and behavioral intention (beta=0.258; t=4.036). The model explained 49.7% of the variance in behavioral intention and 26.8% of the variance in use behavior. Conclusions Our research helps to understand the desired technology characteristics of EHR portals. By testing an information technology acceptance model, we are able to determine what is more valued by patients when it comes to deciding whether to adopt EHR portals or not. The inclusion of specific constructs and relationships related to the health care consumer area also had a significant impact on understanding the adoption of EHR portals. PMID:26935646

  12. An Approach for harmonizing European Water Portals

    NASA Astrophysics Data System (ADS)

    Pesquer, Lluís; Stasch, Christoph; Masó, Joan; Jirka, Simon; Domingo, Xavier; Guitart, Francesc; Turner, Thomas; Hinderk Jürrens, Eike

    2017-04-01

    A number of European funded research projects is developing novel solutions for water monitoring, modeling and management. To generate innovations in the water sector, third parties from industry and the public sector need to take up the solutions and bring them into the market. A variety of portals exists to support this move into the market. Examples on the European level are the EIP Water Online Marketplace(1), the WaterInnEU Marketplace(2), the WISE RTD Water knowledge portal(3), the WIDEST- ICT for Water Observatory(4) or the SWITCH-ON Virtual Product Market and Virtual Water-Science Laboratory(5). Further innovation portals and initiatives exist on the national or regional level, for example, the Denmark knows water platform6 or the Dutch water alliance(7). However, the different portals often cover the same projects, the same products and the same services. Since they are technically separated and have their own data models and databases, people need to duplicate information and maintain it at several endpoints. This requires additional efforts and hinders the interoperable exchange between these portals and tools using the underlying data. In this work, we provide an overview on the existing portals and present an approach for harmonizing and integrating common information that is provided across different portals. The approach aims to integrate the common in formation in a common database utilizing existing vocabularies, where possible. An Application Programming Interface allows access the information in a machine-readable way and utilizing the information in other applications beyond description and discovery purposes. (1) http://www.eip-water.eu/my-market-place (2) https://marketplace.waterinneu.org (3) http://www.wise-rtd.info/ (4) http://iwo.widest.eu (5) http://www.switch-on-vwsl.eu/ (6) http://www.rethinkwater.dk/ (7) http://wateralliance.nl/

  13. Portal hypertension: angiographic and hemodynamic evaluation.

    PubMed

    Koolpe, H A; Koolpe, L

    1986-09-01

    There has been a correlation of three hemodynamic parameters with the etiology of portal hypertension and one of the major determinants of therapeutic success, namely, the direction of portal flow. The presence of a 4 mm Hg or greater gradient between the right atrium and the intrahepatic inferior vena cava associated with a "lumpy" pull-back tracing between the wedged and free positions has been associated with alcoholic liver disease. Such patients have antegrade portal flow when their AoD/HWP ratio is in the range of 2.6 to 2.0, and flow becomes stagnant or reversed below this range. Nonalcoholic liver disease is characterized by the absence of a gradient between the right atrium and the inferior vena cava and by a pull-back tracing that falls smoothly and rapidly to the free hepatic vein value. These patients have antegrade portal flow with an AoD/HWP ratio in the range of 1.7 to 1.5. The correct characterization of the cause for diffuse liver disease and direction of portal flow applies to the selection process for patients being considered for the selective distal splenorenal shunt as well as for the newer procedure of orthotopic liver transplantation. It is hoped that the wider application of these physiologic parameters, in the context of an increasing array of imaging tools for the portal system, including high-resolution ultrasound, computed tomography, and magnetic resonance imaging (MRI), will continue to offer all clinicians interested in the problem of portal hypertension a reliable guide to prognosis and the success of the particular treatment provided.

  14. Engine Cold Start

    DTIC Science & Technology

    2015-09-01

    have a high surface to volume ratio for the combustion chamber , and high gas velocities during compression that results in high heat transfer rates...into the pre- chambers during the injection event to augment ignition. Except for a thermostatically controlled cold start advance, the mechanical fuel...Kistler Cylinder Pressure Transducer, 6052B (Main- Chamber ) • Kistler 5018 Charge Amplifiers • Kistler Fuel Line Pressure Transducer, 4065A1000 with

  15. The Sydney West Knowledge Portal: Evaluating the Growth of a Knowledge Portal to Support Translational Research.

    PubMed

    Janssen, Anna; Robinson, Tracy Elizabeth; Provan, Pamela; Shaw, Tim

    2016-06-29

    The Sydney West Translational Cancer Research Centre is an organization funded to build capacity for translational research in cancer. Translational research is essential for ensuring the integration of best available evidence into practice and for improving patient outcomes. However, there is a low level of awareness regarding what it is and how to conduct it optimally. One solution to addressing this gap is the design and deployment of web-based knowledge portals to disseminate new knowledge and engage with and connect dispersed networks of researchers. A knowledge portal is an web-based platform for increasing knowledge dissemination and management in a specialized area. To measure the design and growth of an web-based knowledge portal for increasing individual awareness of translational research and to build organizational capacity for the delivery of translational research projects in cancer. An adaptive methodology was used to capture the design and growth of an web-based knowledge portal in cancer. This involved stakeholder consultations to inform initial design of the portal. Once the portal was live, site analytics were reviewed to evaluate member usage of the portal and to measure growth in membership. Knowledge portal membership grew consistently for the first 18 months after deployment, before leveling out. Analysis of site metrics revealed members were most likely to visit portal pages with community-generated content, particularly pages with a focus on translational research. This was closely followed by pages that disseminated educational material about translational research. Preliminary data from this study suggest that knowledge portals may be beneficial tools for translating new evidence and fostering an environment of communication and collaboration.

  16. The Sydney West Knowledge Portal: Evaluating the Growth of a Knowledge Portal to Support Translational Research

    PubMed Central

    2016-01-01

    Background The Sydney West Translational Cancer Research Centre is an organization funded to build capacity for translational research in cancer. Translational research is essential for ensuring the integration of best available evidence into practice and for improving patient outcomes. However, there is a low level of awareness regarding what it is and how to conduct it optimally. One solution to addressing this gap is the design and deployment of web-based knowledge portals to disseminate new knowledge and engage with and connect dispersed networks of researchers. A knowledge portal is an web-based platform for increasing knowledge dissemination and management in a specialized area. Objective To measure the design and growth of an web-based knowledge portal for increasing individual awareness of translational research and to build organizational capacity for the delivery of translational research projects in cancer. Methods An adaptive methodology was used to capture the design and growth of an web-based knowledge portal in cancer. This involved stakeholder consultations to inform initial design of the portal. Once the portal was live, site analytics were reviewed to evaluate member usage of the portal and to measure growth in membership. Results Knowledge portal membership grew consistently for the first 18 months after deployment, before leveling out. Analysis of site metrics revealed members were most likely to visit portal pages with community-generated content, particularly pages with a focus on translational research. This was closely followed by pages that disseminated educational material about translational research. Conclusions Preliminary data from this study suggest that knowledge portals may be beneficial tools for translating new evidence and fostering an environment of communication and collaboration. PMID:27357641

  17. Focal spot motion of linear accelerators and its effect on portal image analysis.

    PubMed

    Sonke, Jan-Jakob; Brand, Bob; van Herk, Marcel

    2003-06-01

    The focal spot of a linear accelerator is often considered to have a fully stable position. In practice, however, the beam control loop of a linear accelerator needs to stabilize after the beam is turned on. As a result, some motion of the focal spot might occur during the start-up phase of irradiation. When acquiring portal images, this motion will affect the projected position of anatomy and field edges, especially when low exposures are used. In this paper, the motion of the focal spot and the effect of this motion on portal image analysis are quantified. A slightly tilted narrow slit phantom was placed at the isocenter of several linear accelerators and images were acquired (3.5 frames per second) by means of an amorphous silicon flat panel imager positioned approximately 0.7 m below the isocenter. The motion of the focal spot was determined by converting the tilted slit images to subpixel accurate line spread functions. The error in portal image analysis due to focal spot motionwas estimated by a subtraction of the relative displacement of the projected slit from the relative displacement of the field edges. It was found that the motion of the focal spot depends on the control system and design of the accelerator. The shift of the focal spot at the start of irradiation ranges between 0.05-0.7 mm in the gun-target (GT) direction. In the left-right (AB) direction the shift is generally smaller. The resulting error in portal image analysis due to focal spotmotion ranges between 0.05-1.1 mm for a dose corresponding to two monitor units (MUs). For 20 MUs, the effect of the focal spot motion reduces to 0.01-0.3 mm. The error in portal image analysis due to focal spot motion can be reduced by reducing the applied dose rate.

  18. The MISTRALS programme data portal

    NASA Astrophysics Data System (ADS)

    Brissebrat, Guillaume; Belmahfoud, Nizar; Cloché, Sophie; Darras, Sabine; Descloitres, Jacques; Drocourt, Yoann; Ferré, Hélène; Henriot, Nicolas; Ramage, Karim

    2017-04-01

    different file formats and data processing tools. The MISTRALS data portal - http://mistrals.sedoo.fr/ - has been designed and developed as a unified tool for sharing scientific data in spite of many sources of heterogeneity, and for fostering collaboration between research communities. The metadata (data description) are standardized and comply with international standards (ISO 19115-19139; INSPIRE European Directive; Global Change Master Directory Thesaurus). A search tool allows to browse the catalog by keyword or multicriteria selection (area, period, physical property...) and to access data. Every in situ dataset is available in the native format, but the most commonly used datasets have been homogenized (property names, units, quality flags...) and inserted in a relational database, in order to enable accurate data selection, and download in standard formats. At present the MISTRALS data portal enables to access about 650 datasets. It counts more than 675 registered users and about 100 data requests every month. The number of available datasets is increasing daily, due to the provision of campaign datasets by several projects. Every scientist is invited to browse the catalog, complete the online registration and use MISTRALS data. Feel free to contact mistrals-contact@sedoo.fr for any question.

  19. The MISTRALS programme data portal

    NASA Astrophysics Data System (ADS)

    Brissebrat, Guillaume; Albert-Aguilar, Alexandre; Belmahfoud, Nizar; Cloché, Sophie; Darras, Sabine; Descloitres, Jacques; Ferré, Hélène; Fleury, Laurence; Focsa, Loredana; Henriot, Nicolas; Labatut, Laurent; Petit de la Villéon, Loïc; Ramage, Karim; Schmechtig, Catherine; Vermeulen, Anne

    2016-04-01

    different file formats and data processing tools. The MISTRALS data portal - http://mistrals.sedoo.fr/ - has been designed and developed as a unified tool for sharing scientific data in spite of many sources of heterogeneity, and for fostering collaboration between research communities. The metadata (data description) are standardized and comply with international standards (ISO 19115-19139; INSPIRE European Directive; Global Change Master Directory Thesaurus). A search tool allows to browse the catalog by keyword or multicriteria selection (area, period, physical property...) and to access data. Data sets managed by different data centres (ICARE, IPSL, SEDOO, CORIOLIS) are available through interoperability protocols (OPeNDAP, xml requests...) or archive synchronisation. Every in situ data set is available in the native format, but the most commonly used data sets have been homogenized (property names, units, quality flags...) and inserted in a relational database, in order to enable accurate data selection, and download of different data sets in a shared format. At present the MISTRALS data portal enables to access about 600 datasets. It counts more than 675 registered users and about 100 data requests every month. The number of available datasets is increasing daily, due to the provision of campaign datasets by several projects. Every scientist is invited to browse the catalog, complete the online registration form and use MISTRALS data. Feel free to contact mistrals-contact@sedoo.fr for any question.

  20. The MISTRALS programme data portal

    NASA Astrophysics Data System (ADS)

    Fleury, Laurence; Brissebrat, Guillaume; Belmahfoud, Nizar; Boichard, Jean-Luc; Brosolo, Laetitia; Cloché, Sophie; Descloitres, Jacques; Ferré, Hélène; Focsa, Loredana; Henriot, Nicolas; Labatut, Laurent; Mière, Arnaud; Petit de la Villéon, Loïc; Ramage, Karim; Schmechtig, Catherine; Vermeulen, Anne; André, François

    2015-04-01

    different file formats and data processing tools. The MISTRALS data portal - http://mistrals.sedoo.fr/ - has been designed and developed as a unified tool for sharing scientific data in spite of many sources of heterogeneity, and for fostering collaboration between research communities. The metadata (data description) are standardized and comply with international standards (ISO 19115-19139; INSPIRE European Directive; Global Change Master Directory Thesaurus). A search tool allows to browse the catalog by keyword or multicriteria selection (area, period, physical property...) and to access data. Data sets managed by different data centres (ICARE, IPSL, SEDOO, CORIOLIS) are available through interoperability protocols (OPeNDAP, xml requests...) or archive synchronisation. Every in situ data set is available in the native format, but the most commonly used data sets have been homogenized (property names, units, quality flags...) and inserted in a relational database, in order to enable accurate data selection, and download of different data sets in a shared format. At present the MISTRALS data portal enables to access about 550 datasets. It counts more than 600 registered users and about 100 data requests every month. The number of available datasets is increasing daily, due to the provision of campaign datasets (2012, 2013, 2014) by several projects. Every scientist is invited to browse the catalog, complete the online registration form and use MISTRALS data. Feel free to contact mistrals-contact@sedoo.fr for any question.

  1. The MISTRALS programme data portal

    NASA Astrophysics Data System (ADS)

    Fleury, Laurence; Brissebrat, Guillaume; Belmahfoud, Nizar; Boichard, Jean-Luc; Brosolo, Laetitia; Cloché, Sophie; Descloitres, Jacques; Ferré, Hélène; Focsa, Loredana; Labatut, Laurent; Mastrorillo, Laurence; Mière, Arnaud; Petit de la Villéon, Loïc; Ramage, Karim; Schmechtig, Catherine

    2014-05-01

    different file formats and data processing tools. The MISTRALS data portal - http://mistrals.sedoo.fr/ - has been designed and developed as a unified tool to share scientific data in spite of many sources of heterogeneity, and to foster collaboration between research communities. The metadata (data description) are standardized and comply with international standards (ISO 19115-19139; INSPIRE European Directive; Global Change Master Directory Thesaurus). A search tool allows to browse the catalogue by keyword or by multicriteria selection (location, period, physical property...) and to access data. Data sets managed by different data centres (ICARE, IPSL, SEDOO, CORIOLIS) are available through interoperability protocols (OPeNDAP, xml requests...) or archive synchronisation. At present the MISTRALS data portal allows to access more than 400 datasets and counts more than 500 registered users. The number of available datasets is increasing daily, due to the provision of campaign datasets (2012, 2013) by several projects. Every in situ data set is available in the native format, but the favorite data sets have been homogenized (property names, units, quality flags...) and inserted in a relational database, in order to enable more accurate data selection, and download of different datasets in a shared format. Every scientist is invited to make use of the different MISTRALS tools and data. Do not hesitate to browse the catalogue and fill the online registration form. Feel free to contact mistrals-contact@sedoo.fr for any question.

  2. The SNS/HFIR Web Portal System for SANS

    SciTech Connect

    Campbell, Stuart I; Miller, Stephen D; Bilheux, Jean-Christophe; Reuter, Michael A; Peterson, Peter F; Kohl, James Arthur; Trater, James R; Vazhkudai, Sudharshan S; Lynch, Vickie E

    2010-01-01

    In a busy world, continuing with the status-quo, to do things the way we are already familiar, often seems to be the most efficient way to conduct our work. We look for the value-add to decide if investing in a new method is worth the effort. How shall we evaluate if we have reached this tipping point for change? For contemporary researchers, understanding the properties of the data is a good starting point. The new generation of neutron scattering instruments being built are higher resolution and produce one or more orders of magnitude larger data than the previous generation of instruments. For instance, we have grown out of being able to perform some important tasks with our laptops the data are too big and the computations would simply take too long. These large datasets can be problematic as facility users now begin to grapple with many of the same issues faced by more established computing communities. These issues include data access, management, and movement, data format standards, distributed computing, and collaboration among others. The Neutron Science Portal has been architected, designed, and implemented to provide users with an easy-to-use interface for managing and processing data, while also keeping an eye on meeting modern cybersecurity requirements imposed on institutions. The cost of entry for users has been lowered by utilizing a web interface providing access to backend portal resources. Users can browse or search for data which they are allowed to see, data reduction applications can be run without having to load the software, sample activation calculations can be performed for SNS and HFIR beamlines, McStas simulations can be run on TeraGrid and ORNL computers, and advanced analysis applications such as those being produced by the DANSE project can be run. Behind the scenes is a live cataloging system which automatically catalogs and archives experiment data via the data management system, and provides proposal team members access to their

  3. The double-dark portal

    NASA Astrophysics Data System (ADS)

    Curtin, David; Tsai, Yuhsin

    2014-11-01

    In most models of the dark sector, dark matter is charged under some new symmetry to make it stable. We explore the possibility that not just dark matter, but also the force carrier connecting it to the visible sector is charged under this symmetry. This dark mediator then acts as a Double-Dark Portal. We realize this setup in the dark mediator Dark matter model (dmDM), featuring a fermionic DM candidate χ with Yukawa couplings to light scalars ϕ i . The scalars couple to SM quarks via the operator . This can lead to large direct detection signals via the 2 → 3 process χ N → χ N ϕ if one of the scalars has mass ≲ 10 keV. For dark matter Yukawa couplings y χ ˜ 10-3 -10-2, dmDM features a thermal relic dark matter candidate while also implementing the SIDM scenario for ameliorating inconsistencies between dwarf galaxy simulations and observations. We undertake the first systematic survey of constraints on light scalars coupled to the SM via the above operator. The strongest constraints are derived from a detailed examination of the light mediator's effects on stellar astrophysics. LHC experiments and cosmological considerations also yield important bounds. Observations of neutron star cooling exclude the minimal model with one dark mediator, but a scenario with two dark mediators remains viable and can give strong direct detection signals. We explore the direct detection consequences of this scenario and find that a heavy dmDM candidate fakes different WIMPs at different experiments. Large regions of dmDM parameter space are accessible above the irreducible neutrino background.

  4. Portal hypertensive gastric mucosa: an endoscopic study.

    PubMed Central

    Papazian, A; Braillon, A; Dupas, J L; Sevenet, F; Capron, J P

    1986-01-01

    The endoscopic features of the gastric mucosa in patients with cirrhosis have not been systematically investigated. In these patients, we observed an endoscopic aspect, consisting of multiple small erythematous areas, outlined by a subtle yellowish network (resembling a mosaic), mainly located in the proximal part of the stomach. We tested the value of this sign by comparing two groups: 100 patients with portal hypertension due to cirrhosis, and 300 control patients without signs of liver disease or portal hypertension. This endoscopic pattern was observed in 94 of the patients with cirrhosis, whereas oesophageal varices were seen in 78 only. In contrast, only one patient of the control group had this aspect. Moreover, this sign was also found in seven of eight patients with non cirrhotic portal hypertension, but was seen neither in 100 patients with chronic alcoholism but without liver disease, nor in 10 cirrhotic patients with end-to-side portacaval shunts. These endoscopic changes might be because of mucosal and/or submucosal oedema and congestion highlighting the normal areae gastricae pattern and related to raised portal pressure. We conclude that the mosaic pattern of the gastric mucosa is a sensible and specific sign for diagnosis of portal hypertension, whatever the cause. Images Figure PMID:3781334

  5. When to Start Antiretroviral Therapy

    MedlinePlus

    ... away. What conditions increase the urgency to start ART? The following conditions increase the urgency to start ... risk of HIV transmission. Once a person starts ART, why is medication adherence important? ART is a ...

  6. Properties of "started" earthquakes

    NASA Astrophysics Data System (ADS)

    Babeshko, V. A.; Evdokimova, O. V.; Babeshko, O. M.

    2016-04-01

    The properties of earthquakes called "started" in [1] are studied. The problems associated with the method of revealing them, the expected behavior of the event, and the determination of its place, time, and intensity are discussed. Certain characteristic properties of real earthquakes are compared with the modeled ones. It is emphasized that there are no data on earthquakes of a similar type in scientific publications. The method of using high-efficiency calculations is proposed by imbedding the investigations in topological spaces having a wider spectrum of properties than the functional ones.

  7. Enceladus: Starting Hydrothermal Activity

    NASA Technical Reports Server (NTRS)

    Matson, D. L.; Castillo-Rogez, J. C.; Johnson, T. V.; Lunine, J. I.; Davies, A. G.

    2011-01-01

    We describe a process for starting the hydrothermal activity in Enceladus' South Polar Region. The process takes advantage of fissures that reach the water table, about 1 kilometer below the surface. Filling these fissures with fresh ocean water initiates a flow of water up from an ocean that can be self-sustaining. In this hypothesis the heat to sustain the thermal anomalies and the plumes comes from a slightly warm ocean at depth. The heat is brought to the surface by water that circulates up, through the crust and then returns to the ocean.

  8. Enceladus: Starting Hydrothermal Activity

    NASA Technical Reports Server (NTRS)

    Matson, D. L.; Castillo-Rogez, J. C.; Johnson, T. V.; Lunine, J. I.; Davies, A. G.

    2011-01-01

    We describe a process for starting the hydrothermal activity in Enceladus' South Polar Region. The process takes advantage of fissures that reach the water table, about 1 kilometer below the surface. Filling these fissures with fresh ocean water initiates a flow of water up from an ocean that can be self-sustaining. In this hypothesis the heat to sustain the thermal anomalies and the plumes comes from a slightly warm ocean at depth. The heat is brought to the surface by water that circulates up, through the crust and then returns to the ocean.

  9. Effect of fluid shear stress on portal vein remodeling in a rat model of portal hypertension.

    PubMed

    Wen, Bin; Liang, Jian; Deng, Xin; Chen, Ran; Peng, Peichun

    2015-01-01

    Aims. To explore the effects and mechanisms of fluid shear stress on portal vein remodeling in a rat model of portal hypertension. Methods. Subcutaneous injections of CCl4 were given to establish a rat model of liver cirrhosis and portal hypertension. Biomechanical technology was adopted to determine the dynamic changes of haemodynamic indices and fluid shear stress. Nitric oxide (NO), synthase (NOS), and endothelin-1 (ET-1) of the portal vein blood were measured. Changes in geometric structure and ultrastructure of the portal vein were observed using optical and electron microscopy. Results. After the CC14 injections, rat haemodynamics were notably altered. From week 4 onwards, PVP, PVF, and PVR gradually and significantly increased (P < 0.05 versus baseline). The fluid shear stress declined from week 4 onwards (P < 0.01 versus control group). NO, NOS, and ET-1 increased after repeated CCI4 injections. Hematoxylin and eosin staining showed thickened portal vein walls, with increased inside and outside diameters. Electron microscopy revealed different degrees of endothelial cell degeneration, destruction of basement membrane integrity, proliferating, and hypertrophic smooth muscle cells. Conclusions. Fluid shear stress not only influenced the biomechanical environment of the portal vein but also participated in vascular remodeling.

  10. Investigating the efficacy of subharmonic aided pressure estimation for portal vein pressures and portal hypertension monitoring.

    PubMed

    Dave, Jaydev K; Halldorsdottir, Valgerdur G; Eisenbrey, John R; Merton, Daniel A; Liu, Ji-Bin; Zhou, Jian-Hua; Wang, Hsin-Kai; Park, Suhyun; Dianis, Scott; Chalek, Carl L; Lin, Feng; Thomenius, Kai E; Brown, Daniel B; Forsberg, Flemming

    2012-10-01

    The efficacy of using subharmonic emissions from Sonazoid microbubbles (GE Healthcare, Oslo, Norway) to track portal vein pressures and pressure changes was investigated in 14 canines using either slow- or high-flow models of portal hypertension (PH). A modified Logiq 9 scanner (GE Healthcare, Milwaukee, WI, USA) operating in subharmonic mode (f(transmit): 2.5 MHz, f(receive): 1.25 MHz) was used to collect radiofrequency data at 10-40% incident acoustic power levels with 2-4 transmit cycles (in triplicate) before and after inducing PH. A pressure catheter (Millar Instruments, Inc., Houston, TX, USA) provided reference portal vein pressures. At optimum insonification, subharmonic signal amplitude changes correlated with portal vein pressure changes; r ranged from -0.82 to -0.94 and from -0.70 to -0.73 for PH models considered separately or together, respectively. The subharmonic signal amplitudes correlated with absolute portal vein pressures (r: -0.71 to -0.79). Statistically significant differences between subharmonic amplitudes, before and after inducing PH, were noted (p ≤ 0.01). Portal vein pressures estimated using subharmonic aided pressure estimation did not reveal significant differences (p > 0.05) with respect to the pressures obtained using the Millar pressure catheter. Subharmonic-aided pressure estimation may be useful clinically for portal vein pressure monitoring.

  11. Investigating the efficacy of subharmonic aided pressure estimation for portal vein pressures and portal hypertension monitoring

    PubMed Central

    Dave, Jaydev K.; Halldorsdottir, Valgerdur G.; Eisenbrey, John R.; Merton, Daniel A.; Liu, Ji-Bin; Zhou, Jian-Hua; Wang, Hsin-Kai; Park, Suhyun; Dianis, Scott; Chalek, Carl L.; Lin, Feng; Thomenius, Kai E.; Brown, Daniel B.; Forsberg, Flemming

    2013-01-01

    The efficacy of using subharmonic emissions from Sonazoid microbubbles (GE Healthcare, Oslo, Norway) to track portal vein pressures and pressure changes was investigated in 14 canines using either slow- or high-flow models of portal hypertension (PH). A modified Logiq 9 scanner (GE Healthcare, Milwaukee, WI) operating in subharmonic mode (ftransmit:2.5MHz, freceive:1.25MHz) was used to collect RF data at 10-40% incident acoustic power levels with 2-4 transmit cycles (in triplicate), before and after inducing PH. A pressure catheter (Millar Instruments, Inc., Houston, TX) provided reference portal vein pressures. At optimum insonification, subharmonic signal amplitude changes correlated with portal vein pressure changes; r ranged from -0.82 to -0.94 and from -0.70 to -0.73 for PH models considered separately or together, respectively. The subharmonic signal amplitudes correlated with absolute portal vein pressures (r: -0.71 to -0.79). Statistically significant differences between subharmonic amplitudes, before and after inducing PH, were noted (p≤0.01). Portal vein pressures estimated using SHAPE did not reveal significant differences (p>0.05) with respect to the pressures obtained using the Millar pressure catheter. Subharmonic aided pressure estimation may be useful clinically for portal vein pressure monitoring. PMID:22920550

  12. View of Crane 55 above its arched portal over roadway ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of Crane 55 above its arched portal over roadway atop pier at Drydock No. 2 - Puget Sound Naval Shipyard, Portal Gantry Crane No. 55, Central Industrial Area, Farragut Avenue, Bremerton, Kitsap County, WA

  13. 13. Detail, connection point of end post, top chord, portal ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. Detail, connection point of end post, top chord, portal strut, and tension members at upstream side of west portal, view to northwest. - Dry Creek Bridge, Spanning Dry Creek at Cook Road, Ione, Amador County, CA

  14. Effects of ondansetron on portal hemodynamics in liver cirrhosis.

    PubMed

    Tripkovic, M; Kozjek, F; Krizman, I; Jereb, J; Francetic, I; Grabnar, I; Mrhar, A

    2000-09-01

    The double-blind randomized pilot study was undertaken to compare the effects of a 10-day course of ondansetron 8 mg/day and propranolol 80 mg/day perorally in treating portal hypertension. SUBIECTS AND METHODS: 16 patients with liver disease were enrolled in the study. Measurements of portal vein diameter, portal blood flow velocity and portal blood flow volume were done at days 1, 5 and 10 of treatment using duplex Doppler sonography. The propranolol group demonstrated a decrease in portal venous diameter, while patients treated with ondansetron exhibited reduced portal blood flow velocity values. A decreased portal blood flow volume was found in both groups after 10 days of therapy. No statistically significant differences were found between the groups with the exception of portal venous diameter which is significantly lower at the end of the treatment in the case of propranolol.

  15. 164. Twin Tunnels. View of the south portal of the ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    164. Twin Tunnels. View of the south portal of the north tunnel from inside the finished north portal of the south tunnel looking north. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  16. 40. December 20, 1933 View of portal site, tunnel no. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    40. December 20, 1933 View of portal site, tunnel no. 1, CWA men facing the portal. "Stripping the hillside grule sic formation between tunnels 1 and 2." - Scotts Bluff Summit Road, Gering, Scotts Bluff County, NE

  17. 16. DETAIL VIEW OF ORNAMENTAL UPPER PORTAL STRUT AND FLORAL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    16. DETAIL VIEW OF ORNAMENTAL UPPER PORTAL STRUT AND FLORAL MOTIF GUSSETS OF SOUTH BRIDGE PORTAL. FACING SOUTHWEST. - Coverts Crossing Bridge, Spanning Mahoning River along Township Route 372 (Covert Road), New Castle, Lawrence County, PA

  18. 13. Detail of connection of end portal, top chord, diagonal, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. Detail of connection of end portal, top chord, diagonal, vertical and portal strut. Looking at east end, north side of east span. - Boomershine Bridge, Spanning Twin Creek, Farmersville, Montgomery County, OH

  19. 43. VIEW OF THE RAMP ABOVE LOWER PORTAL AND RAMP, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    43. VIEW OF THE RAMP ABOVE LOWER PORTAL AND RAMP, LOOKING NORTHWEST. THE RAMP WAS USED TO GUIDE RUN-OFF FROM THUNDERSTORMS AWAY FROM THE PORTAL. - Independent Coal & Coke Company, Kenilworth, Carbon County, UT

  20. 340. Caltrans, Photographer October 14, 1935 "TUNNEL WEST PORTAL"; ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    340. Caltrans, Photographer October 14, 1935 "TUNNEL - WEST PORTAL"; VIEW OF TUNNEL - WEST PORTAL' UNDER CONSTRUCTION SHOWING EXCAVATION OF TUNNEL AFTER POUR. 5-1669 - San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Francisco, San Francisco County, CA

  1. The hospital library and the enterprise portal.

    PubMed

    Bandy, Margaret; Fosmire, Brenda

    2004-01-01

    At Exempla Healthcare, the medical librarians and the e-Business staff are creating an enterprise information portal where medical reference is targeted, easily accessible, and supported by the medical librarians. A team approach has been essential. The e-Business department has worked for nine months coordinating technical challenges required to support personalization, targeted communications, and a single access point for clinical patient data. Exempla medical librarians have been involved in the definition and design of information access needs from the very beginning. The Clinicians Portal was the first developed, with other customizations to follow. Many challenges remain, but by definition, a portal is designed to be flexible and adapt to the changing needs of the enterprise it supports.

  2. Pancreatic Adenocarcinoma Complicated by Sinistral Portal Hypertension

    PubMed Central

    Kaley, Kristin; Lamb, Lynne

    2016-01-01

    Pancreatic cancer is known for vague symptoms that lead to a delay in diagnosis, and hence most cases are found at an advanced stage. Many complications can happen secondary to pancreatic cancer including diabetes, malabsorption, and deep venous thrombosis. Sinistral (segmental or left-sided) portal hypertension (SPH) refers to portal hypertension confined to the left-sided segment of the portal venous system namely the splenic side, and the most common etiology is splenic vein thrombosis (SVT). We present here a case of a 66-year-old male with advanced pancreatic cancer who died due to bleeding secondary to SVT. We advise physicians caring for these patients to be aware of this complication, which may also be the manifestation of an undiagnosed pancreatic cancer. PMID:27555987

  3. Best Practices for Building Web Data Portals

    NASA Astrophysics Data System (ADS)

    Anderson, R. A.; Drew, L.

    2013-12-01

    With a data archive of more than 1.5 petabytes and a key role as the NASA Distributed Active Archive Center (DAAC) for synthetic aperture radar (SAR) data, the Alaska Satellite Facility (ASF) has an imperative to develop effective Web data portals. As part of continuous enhancement and expansion of its website, ASF recently created two data portals for distribution of SAR data: one for the archiving and distribution of NASA's MEaSUREs Wetlands project and one for newly digitally processed data from NASA's 1978 Seasat satellite. These case studies informed ASF's development of the following set of best practices for developing Web data portals. 1) Maintain well-organized, quality data. This is fundamental. If data are poorly organized or contain errors, credibility is lost and the data will not be used. 2) Match data to likely data uses. 3) Identify audiences in as much detail as possible. ASF DAAC's Seasat and Wetlands portals target three groups of users: a) scientists already familiar with ASF DAAC's SAR archive and our data download tool, Vertex; b) scientists not familiar with SAR or ASF, but who can use the data for their research of oceans, sea ice, volcanoes, land deformation and other Earth sciences; c) audiences wishing to learn more about SAR and its use in Earth sciences. 4) Identify the heaviest data uses and the terms scientists search for online when trying to find data for those uses. 5) Create search engine optimized (SEO) Web content that corresponds to those searches. Because search engines do not yet search raw data, so Web data portals must include content that ties the data to its likely uses. 6) Create Web designs that best serves data users (user centered design), not for how the organization views itself or its data. Usability testing was conducted for the ASF DAAC Wetlands portal to improve the user experience. 7) Use SEO tips and techniques. The ASF DAAC Seasat portal used numerous SEO techniques, including social media, blogging

  4. Unifying access to services: ESO's user portal

    NASA Astrophysics Data System (ADS)

    Chavan, A. M.; Tacconi-Garman, L. E.; Peron, M.; Sogni, F.; Canavan, T.; Nass, P.

    2006-06-01

    The European Southern Observatory (ESO) is in the process of creating a central access point for all services offered to its user community via the Web. That gateway, called the User Portal, will provide registered users with a personalized set of service access points, the actual set depending on each user's privileges. Correspondence between users and ESO will take place by way of "profiles", that is, contact information. Each user may have several active profiles, so that an investigator may choose, for instance, whether their data should be delivered to their own address or to a collaborator. To application developers, the portal will offer authentication and authorization services, either via database queries or an LDAP server. The User Portal is being developed as a Web application using Java-based technology, including servlets and JSPs.

  5. astronomia.pl: Polish Astronomy Portal

    NASA Astrophysics Data System (ADS)

    Czart, K.

    2005-12-01

    Astronomia.pl is an educational internet service for students, teachers and all astronomy amateurs. It is the biggest and the most popular astronomical portal in Poland. Our main address is www.astronomia.pl, but we created additional services: Copernicus - biographies of famous astronomers (www.kopernik.pl), AstroWWW - a collection of interesting webpages created by amateur astronomers (www.astrowww. pl), AstroSHOP - an on-line shop (www.astronomia.com.pl), Planetarium - website about Polish planetaria (www.planetarium.pl). An English version of the portal is available at www.astronomia.pl/english. In this article we give a short introduction to many of the portal's projects.

  6. Patient Portal Preferences: Perspectives on Imaging Information.

    PubMed

    McNamara, Mary; Arnold, Corey; Sarma, Karthik; Aberle, Denise; Garon, Edward; Bui, Alex A T

    2015-08-01

    Patient portals have the potential to provide content that is specifically tailored to a patient's information needs based on diagnoses and other factors. In this work, we conducted a survey of 41 lung cancer patients at an outpatient lung cancer clinic at the medical center of the University of California Los Angeles, to gain insight into these perceived information needs and opinions on the design of a portal to fulfill them. We found that patients requested access to information related to diagnosis and imaging, with more than half of the patients reporting that they did not anticipate an increase in anxiety due to access to medical record information via a portal. We also found that patient educational background did not lead to a significant difference in desires for explanations of reports and definitions of terms.

  7. Portal cavernoma cholangiopathy-clinical characteristics.

    PubMed

    Duseja, Ajay

    2014-02-01

    Because of the presence of portal cavernoma, paracholedochal and pericholedochal varices, portal cavernoma cholangiopathy (PCC) has become an entity unique to patients with extrahepatic portal venous obstruction (EHPVO). Majority of patients with these abnormalities are asymptomatic and are incidentally detected to have the presence of biliary abnormalities on cholangiography. Minority of patients present with symptoms of chronic cholestasis with or without biliary pain or acute cholangitis related most often to the presence of biliary strictures or stones. Other than the age of the patient and duration of EHPVO, presence of gall stones and common bile duct stones are other risk factors for the causation of symptoms in patients with PCC. This review summarizes the clinical characteristics of asymptomatic and symptomatic patients with PCC giving details of the prevalence of symptoms, their risk factors and overall burden of symptomatic PCC.

  8. Grid portal architectures for scientific applications

    NASA Astrophysics Data System (ADS)

    Thomas, M. P.; Burruss, J.; Cinquini, L.; Fox, G.; Gannon, D.; Gilbert, L.; von Laszewski, G.; Jackson, K.; Middleton, D.; Moore, R.; Pierce, M.; Plale, B.; Rajasekar, A.; Regno, R.; Roberts, E.; Schissel, D.; Seth, A.; Schroeder, W.

    2005-01-01

    Computational scientists often develop large models and codes intended to be used by larger user communities or for repetitive tasks such as parametric studies. Lowering the barrier of entry for access to these codes is often a technical and sociological challenge. Portals help bridge the gap because they are well known interfaces enabling access to a large variety of resources, services, applications, and tools for private, public, and commercial entities, while hiding the complexities of the underlying software systems to the user. This paper presents an overview of the current state-of-the-art in grid portals, based on a component approach that utilizes portlet frameworks and the most recent Grid standards, the Web Services Resource Framework and a summary of current DOE portal efforts.

  9. Effect of hepatic portal infusion of water on water intake by water-deprived rats.

    PubMed

    Kobashi, M; Adachi, A

    1992-11-01

    To determine whether or not hepatoportal osmoreceptive (or sodium-receptive) signals participate in the control of drinking, we examined the effects of portal infusion of water, 0.9% saline, and 1.8% saline on water intake by water-deprived rats. Infusion was started 0.5 h prior to the end of the water deprivation period for 3.5 h at a rate of 52 microliters/min through either a portal or a jugular catheter. After 24-h water deprivation, water intake was measured successively for 24 h without food. As a result of the water infusion tests, water intake of the portal infusion group was significantly less than that of the jugular infusion group during and after the infusion. Portal infusion of neither 0.9% nor 1.8% saline affected the water intake compared to similar infusion into the jugular vein. It is concluded that hypotonic stimulation of the hepatoportal osmoreceptor suppresses water intake in water-deprived rats. On the contrary, isotonic or hypertonic stimulation does not produce any change of water intake.

  10. Pattern-based information portal for business plan co-creation

    NASA Astrophysics Data System (ADS)

    Bontchev, Boyan; Ruskov, Petko; Tanev, Stoyan

    2010-10-01

    Creation of business plans helps entrepreneurs in managing identification of business opportunities and committing necessary resources for process evolution. Applying patterns in business plan creation facilitates the identification of effective solutions that were adopted in the past and may provide a basis for adopting similar solutions in the future within given business context. The article presents the system design of an information portal for business plan co-creation based on patterns. The portal is going to provide start-up and entrepreneurs with ready-to-modify business plan patterns in order to help them in development of effective and efficient business plans. It will facilitate entrepreneurs in co-experimenting and co-learning more frequently and faster. Moreover, the paper focuses on the software architecture of the pattern based portal and explains the functionality of its modules, namely the pattern designer, pattern repository services and agent-based pattern implementers. It explains their role for business process co-creation, storing and managing patterns described formally, and selecting patterns best suited for specific business case. Thus, innovative entrepreneurs will be guided by the portal in co-writing winning business plans and staying competitive in the present day dynamic globalized environment.

  11. Pattern-based information portal for business plan co-creation

    NASA Astrophysics Data System (ADS)

    Bontchev, Boyan; Ruskov, Petko; Tanev, Stoyan

    2011-03-01

    Creation of business plans helps entrepreneurs in managing identification of business opportunities and committing necessary resources for process evolution. Applying patterns in business plan creation facilitates the identification of effective solutions that were adopted in the past and may provide a basis for adopting similar solutions in the future within given business context. The article presents the system design of an information portal for business plan co-creation based on patterns. The portal is going to provide start-up and entrepreneurs with ready-to-modify business plan patterns in order to help them in development of effective and efficient business plans. It will facilitate entrepreneurs in co-experimenting and co-learning more frequently and faster. Moreover, the paper focuses on the software architecture of the pattern based portal and explains the functionality of its modules, namely the pattern designer, pattern repository services and agent-based pattern implementers. It explains their role for business process co-creation, storing and managing patterns described formally, and selecting patterns best suited for specific business case. Thus, innovative entrepreneurs will be guided by the portal in co-writing winning business plans and staying competitive in the present day dynamic globalized environment.

  12. Application of the smart portal in transportation

    SciTech Connect

    Kercel, S.W.; Baylor, V.M.; Dress, W.B.; Hickerson, T.W.; Jatko, W.B.; Labaj, L.E.; Muhs, J.D.; Pack, R.M.

    1996-12-31

    Under a program sponsored by the Department of Energy, the Oak Ridge complex is developed a ``Portal-of-the-Future``, or ``smart portal``. This is a security portal for vehicular traffic which is intended to quickly detect explosives, hidden passengers, etc. It uses several technologies, including microwaves, weigh-in-motion, digital image processing, and electroacoustic wavelet-based heartbeat detection. A novel component of particular interest is the Enclosed Space Detection System (ESDS), which detects the presence of persons hiding in a vehicle. The system operates by detecting the presence of a human ballistocardiographic signature. Each time the heart beats, it generates a small but measurable shock wave that propagates through the body. The wave, whose graph is called a ballistocardiogram, is the mechanical analog of the electrocardiogram, which is routinely used for medical diagnosis. The wave is, in turn, coupled to any surface or object with which the body is in contact. If the body is located in an enclosed space, this will result in a measurable deflection of the surface of the enclosure. Independent testing has shown ESDS to be highly reliable. The technologies used in the smart portal operate in real time and allow vehicles to be checked through the portal in much less time than would be required for human inspection. Although not originally developed for commercial transportation, the smart portal has the potential to solve several transportation problems. It could relieve congestion at international highway border crossings by reducing the time required to inspect each vehicle while increasing the level of security. It can reduce highway congestion at the entrance of secure facilities such as prisons. Also, it could provide security at intermodal transfer points, such as airport parking lots and car ferry terminals.

  13. Application of the smart portal in transportation

    NASA Astrophysics Data System (ADS)

    Kercel, Stephen W.; Baylor, Vivian M.; Dress, William B.; Hickerson, Tim W.; Jatko, W. Bruce; Labaj, Leo E.; Muhs, Jeffrey D.; Pack, Richard M.

    1997-02-01

    Under a program sponsored by the Department of Energy, the Oak Ridge complex is developing a `Portal-of-the-Future', or `smart portal.' This is a security portal for vehicular traffic which is intended to quickly detect explosives, hidden passengers, etc. It uses several technologies, including microwaves, weigh-in-motion, digital image processing, and electroacoustic wavelet-based heartbeat detection. A novel component of particular interest is the Enclosed Space Detection System (ESDS), which detects the presence of persons hiding in a vehicle. The system operates by detecting the presence of a human ballistocardiographic signature. Each time the heart beats, it generates a small but measurable shock wave that propagates through the body. The wave, whose graph is called a ballistocardiogram, is the mechanical analog of the electrocardiograms, which is routinely used for medical diagnosis. The wave is, in turn, coupled to any surface or object with which the body is in contact. If the body is located in an enclosed space, this will result in a measurable deflection of the surface of the enclosure. Independent testing has shown ESDS to be highly reliable. The technologies used in the smart portal operate in real time and allow vehicles to be checked through the portal in much less time than would be required for human inspection. Although not originally developed for commercial transportation, the smart portal has the potential to solve several transportation problems. It could relieve congestion at international highway border crossings by reducing the time required to inspect each vehicle while increasing the level of security. It can reduce highway congestion at the entrance of secure facilities such as prisons. Also, it could provide security at intermodal transfer points, such as airport parking lots and car ferry terminals.

  14. The CeDRES data portal

    NASA Astrophysics Data System (ADS)

    Albert-Aguilar, Alexandre; Delmotte, Pauline; André, François; Brissebrat, Guillaume; Canonici, Jean-Christophe; Piguet, Bruno

    2016-04-01

    SAFIRE is the French facility dedicated to airborne measurement for environmental research. The SAFIRE steering committee decided that access to its archives should be improved. If certain data, including recent campaigns, are available online, access to them is difficult for users because these data are dispersed in as many data portals as campaigns. Most of projects are not able to keep medium to long term online access to their database. Therefore, many airborne data, particularly the oldest, are not available online, stored on media whose sustainability is not guaranteed. SAFIRE also decided to identify old data stored in Meudon (France) on paper and hard media and to rescue with the help of an archivist. At the same time, the development of a centralized digital archive - containing data collected with the Fokker - 27 " ARAT " and Merlin IV aircraft - associated to a web portal was given to SEDOO. The first part of the project consisted in modelling the database. The second part, still in progess, was the development of the CeDRES (Centre de Données aéRoportées & SAFIRE) portal (http://cedres.sedoo.fr) which is responsive and bilingual (French and English) ; and metadata standardization (iso 19115). The main objectives of this project are data preservation and open data access. A first test version of CeDRES portal will be release in mid-February 2016. And operational version is planned for summer 2016. In the future, CeDRES portal will be able to receive and to distribute metadata and data of aircraft currently in service (FALCON-20, ATR-42 and PiperAztec-23). The interoperability implementation and data homogenization are planned in the medium term. The CeDRES portal is part of the French atmospheric chemistry data center AERIS (http://www.aeris-data.fr). Every scientist is invited to browse the catalog and use CEDRES data. Feel free to contact cedres-contact@sedoo.fr for any question.

  15. Application of the smart portal in transportation

    NASA Astrophysics Data System (ADS)

    Kercel, Stephen W.; Baylor, Vivian M.; Dress, William B.; Hickerson, Tim W.; Jatko, William B.; Labaj, Leo E.; Muhs, Jeffrey D.; Pack, Richard M.

    1997-02-01

    Under a program sponsored by the Department of Energy, the Oak Ridge complex is developing a `Portal-of-the-Future', or `smart portal.' This is a security portal for vehicular traffic which is intended to quickly detect explosives, hidden passengers, etc. It uses several technologies, including microwaves, weigh-in-motion, digital image processing, and electroacoustic wavelet-based heartbeat detection. A novel component of particular interest is the Enclosed Space Detection System (ESDS), which detects the presence of persons hiding in a vehicle. The system operates by detecting the presence of a human ballistocardiographic signature. Each time the heart beats, it generates a small but measurable shock wave that propagates through the body. The wave, whose graph is called a ballistocardiogram, is the mechanical analog of the electrocardiograms, which is routinely used for medical diagnosis. The wave is, in turn, coupled to any surface or object with which the body is in contact. If the body is located in an enclosed space, this will result in a measurable deflection of the surface of the enclosure. Independent testing has shown ESDS to be highly reliable. The technologies used in the smart portal operate in real time and allow vehicles to be checked through the portal in much less time than would be required for human inspection. Although not originally developed for commercial transportation, the smart portal has the potential to solve several transportation problems. It could relieve congestion at international highway border crossings by reducing the time required to inspect each vehicle while increasing the level of security. It can reduce highway congestion at the entrance of secure facilities such as prisons. Also, it could provide security at intermodal transfer points, such as airport parking lots and car ferry terminals.

  16. Calcified wall portal venous aneurysm: a case report

    PubMed Central

    Khairallah, Safouane; Elmansouri, Abdelmajid; Jalal, Hicham; Idrissi, Mariem Ouali; Ganouni, Najat Cherif Idrissi

    2016-01-01

    Portal vein aneurysms are extremely rare, less than 200 cases have been reported until late 2015. They are defined as a portal vein diameter exceeding 19 mm for cirrhotic patients and 15 mm in normal livers. Most patients are asymptomatic, but complications may occur. We report a case of a 68-year-old female admitted for etiological assessment of a portal hypertension revealed by an upper gastro intestinal bleeding, who was incidentally diagnosed with a portal vein aneurysm. PMID:28292056

  17. Calcified wall portal venous aneurysm: a case report.

    PubMed

    Khairallah, Safouane; Elmansouri, Abdelmajid; Jalal, Hicham; Idrissi, Mariem Ouali; Ganouni, Najat Cherif Idrissi

    2016-01-01

    Portal vein aneurysms are extremely rare, less than 200 cases have been reported until late 2015. They are defined as a portal vein diameter exceeding 19 mm for cirrhotic patients and 15 mm in normal livers. Most patients are asymptomatic, but complications may occur. We report a case of a 68-year-old female admitted for etiological assessment of a portal hypertension revealed by an upper gastro intestinal bleeding, who was incidentally diagnosed with a portal vein aneurysm.

  18. Framework Development Supporting the Safety Portal

    SciTech Connect

    Prescott, Steven Ralph; Kvarfordt, Kellie Jean; Vang, Leng; Smith, Curtis Lee

    2015-07-01

    In a collaborating scientific research arena it is important to have an environment where analysts have access to a shared repository of information, documents, and software tools, and be able to accurately maintain and track historical changes in models. The new Safety Portal cloud-based environment will be accessible remotely from anywhere regardless of computing platforms given that the platform has available Internet access and proper browser capabilities. Information stored at this environment would be restricted based on user assigned credentials. This report discusses current development of a cloud-based web portal for PRA tools.

  19. R2 Water Quality Portal Monitoring Stations

    EPA Pesticide Factsheets

    The Water Quality Data Portal (WQP) provides an easy way to access data stored in various large water quality databases. The WQP provides various input parameters on the form including location, site, sampling, and date parameters to filter and customize the returned results. The The Water Quality Portal (WQP) is a cooperative service sponsored by the United States Geological Survey (USGS), the Environmental Protection Agency (EPA) and the National Water Quality Monitoring Council (NWQMC) that integrates publicly available water quality data from the USGS National Water Information System (NWIS) the EPA STOrage and RETrieval (STORET) Data Warehouse, and the USDA ARS Sustaining The Earth??s Watersheds - Agricultural Research Database System (STEWARDS).

  20. Portal increases throughput with SCADA, distributed control

    SciTech Connect

    Bell, D.E.

    1983-06-01

    Portal Pipelines has added a distributed control system run by SCADA (supervisory control and data acquisition) in its Minot, North Dakota control center. The system keeps abreast of crude movements and quantities of oil being delivered. It was installed in specified stages from 5TI programmable controller, to a PM550 controller (in conjunction with FSK modems), to a full SCADA system. Expansion of the pipeline network in 1980 made integration to SCADA necessary. The Minot control center, CRT terminal, and alarm system are described. Backup consists of redundant computers. Portal's daily movement of 100,000 bbl of crude oil would not be possible without SCADA.

  1. Portal Hypertension Secondary to Spontaneous Arterio-Portal Venous Fistulas: Transcatheter Arterial Embolization with n-Butyl Cyanoacrylate and Microcoils

    SciTech Connect

    Yamagami, Takuji; Nakamura, Toshiyuki; Nishimura, Tsunehiko

    2000-09-15

    We report a 73-year-old man with recurrent variceal bleeding due to portal hypertension caused by multiple intrahepatic arterio-portal venous fistulas, which were successfully occluded by embolization with n-butyl cyanoacrylate and micro-coils.

  2. User Needs of Digital Service Web Portals: A Case Study

    ERIC Educational Resources Information Center

    Heo, Misook; Song, Jung-Sook; Seol, Moon-Won

    2013-01-01

    The authors examined the needs of digital information service web portal users. More specifically, the needs of Korean cultural portal users were examined as a case study. The conceptual framework of a web-based portal is that it is a complex, web-based service application with characteristics of information systems and service agents. In…

  3. The Monash Portal: More Than Just a Virtual Gateway.

    ERIC Educational Resources Information Center

    Kennedy, David; Webster, Len; Benson, Robyn; James, Di; Bailey, Nathan

    The My Monash Portal (Portal) at Monash University (Australia) provides a virtual gateway to support student-centered flexible learning by coordinating several of the university's key resources to meet the needs of students and staff. The Portal is intended to help deliver innovative learning programs, foster opportunities to undertake research,…

  4. User Needs of Digital Service Web Portals: A Case Study

    ERIC Educational Resources Information Center

    Heo, Misook; Song, Jung-Sook; Seol, Moon-Won

    2013-01-01

    The authors examined the needs of digital information service web portal users. More specifically, the needs of Korean cultural portal users were examined as a case study. The conceptual framework of a web-based portal is that it is a complex, web-based service application with characteristics of information systems and service agents. In…

  5. Preduodenal portal vein in an adult--angiography and CT.

    PubMed

    Sasai, K; Sano, A; Nishizawa, S; Imanaka, K; Kuroda, Y

    1985-01-01

    We report on an adult case of preduodenal portal vein illustrated by computed tomography (CT) and angiography. These diagnostic modalities were initially performed to evaluate a coexisting pancreatic cancer. Contrast-enhanced CT demonstrated unusual positioning of the portal vein ventral to the duodenum. The superior mesenteric-portal vein, which was L-shaped and convexly caudad, strongly suggested this anomalous condition.

  6. Factors Influencing Student Acceptance and Use of Academic Portals

    ERIC Educational Resources Information Center

    Presley, Adrien; Presley, Theresa

    2009-01-01

    Institutions of higher education have increasing turned to web portals as a way to connect with students. These portals are designed to provide students a centralized point of access to information and services. In spite of the efforts put into developing and maintaining these portals, their use by students can be disappointing. The study…

  7. Factors Influencing Student Acceptance and Use of Academic Portals

    ERIC Educational Resources Information Center

    Presley, Adrien; Presley, Theresa

    2009-01-01

    Institutions of higher education have increasing turned to web portals as a way to connect with students. These portals are designed to provide students a centralized point of access to information and services. In spite of the efforts put into developing and maintaining these portals, their use by students can be disappointing. The study…

  8. 13. Detail of west side of southwest portal showing the ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. Detail of west side of southwest portal showing the latticed top chord rivet-connected to the latticed inclined end post and the portal strut; also shown is the webbed portal bracing and the top lateral bracing with the pin connection of the hip vertical and the diagonal. - Post Road Bridge, State Route 7-A, Havre de Grace, Harford County, MD

  9. Minnesota: Early Head Start Initiatiive

    ERIC Educational Resources Information Center

    Center for Law and Social Policy, Inc. (CLASP), 2012

    2012-01-01

    Minnesota provides supplemental state funding to existing federal Head Start and Early Head Start (EHS) grantees to increase their capacity to serve additional infants, toddlers, and pregnant women. The initiative was started in 1997 when the state legislature earmarked $1 million of the general state Head Start supplemental funds for children…

  10. Missouri: Early Head Start Initiative

    ERIC Educational Resources Information Center

    Center for Law and Social Policy, Inc. (CLASP), 2012

    2012-01-01

    Missouri's Early Head Start/Child Care Partnership Project expands access to Early Head Start (EHS) services for children birth to age 3 by developing partnerships between federal Head Start, EHS contractors, and child care providers. Head Start and EHS contractors that participate in the initiative provide services through community child care…

  11. Colorectal variceal bleeding in patients with extrahepatic portal vein thrombosis and idiopathic portal hypertension.

    PubMed

    Orozco, H; Takahashi, T; Mercado, M A; Prado-Orozco, E; Ferral, H; Hernandez-Ortiz, J; Esquivel, E

    1992-03-01

    We report three patients with colonic variceal bleeding secondary to portal hypertension, 0.5% of all cases with hemorrhagic portal hypertension studied by us in the last 16 years. One patient had idiopathic portal hypertension, and the others had extrahepatic portal vein thrombosis. Colonic varices were documented in all three cases by angiogram; large arteriovenous fistulas in the territory of the superior mesenteric artery and between the inferior mesenteric artery and hemorrhoidal veins were demonstrated in one patient. Two patients underwent colonoscopy; colonic varices were seen in only one. Two patients also had bled from esophagogastric varices. One patient underwent descending colon and sigmoid resection after failure to control bleeding with ligation of arterial supply; one patient underwent the Sugiura procedure, plus transanal ligation of hemorrhoids and rectal varices. At 3 months, 2 years, and 4 years of follow-up, the patients were in good general condition without any evidence of rebleeding.

  12. Measuring Problem Solving Skills in "Portal 2"

    ERIC Educational Resources Information Center

    Shute, Valerie J.; Wang, Lubin

    2013-01-01

    This paper examines possible improvement to problem solving skills as a function of playing the video game "Portal 2." Stealth assessment is used in the game to evaluate students' problem solving abilities--specifically basic and flexible rule application. The stealth assessment measures will be validated against commonly accepted…

  13. Airport testing an explosives detection portal

    SciTech Connect

    Rhykerd, C.; Linker, K.; Hannum, D.; Bouchier, F.; Parmeter, J.

    1998-08-01

    At the direction of the US Congress, following the Pan Am 103 and TWA 800 crashes, the Federal Aviation Administration funded development of non-invasive techniques to screen airline passengers for explosives. Such an explosives detection portal, developed at Sandia National Laboratories, was field tested at the Albuquerque International airport in September 1997. During the 2-week field trial, 2,400 passengers were screened and 500 surveyed. Throughput, reliability, maintenance and sensitivity were studied. Follow-up testing at Sandia and at Idaho National Engineering and Environmental Laboratory was conducted. A passenger stands in the portal for five seconds while overhead fans blow air over his body. Any explosive vapors or dislodged particles are collected in vents at the feet. Explosives are removed from the air in a preconcentrator and subsequently directed into an ion mobility spectrometer for detection. Throughput measured 300 passengers per hour. The non-invasive portal can detect subfingerprint levels of explosives residue on clothing. A survey of 500 passengers showed a 97% approval rating, with 99% stating that such portals, if effective, should be installed in airports to improve security. Results of the airport test, as well as operational issues, are discussed.

  14. Duodenal web with preduodenal portal vein.

    PubMed

    Golombek, S; Bilgi, J; Ukabiala, O

    1995-06-01

    This article described an unusual case of an infant with duodenal atresia and preduodenal portal vein without Down's syndrome or other anatomical anomalies associated with this condition. Duodenoduodenostomy was effective. Enteral feeding was re-established 72 hours post-operatively and the patient was discharged home one day later.

  15. Collaboration Portals for NASA's Airborne Field Campaigns

    NASA Technical Reports Server (NTRS)

    Conover, Helen; Kulkami, Ajinkya; Garrett, Michele; Goodman, Michael; Peterson, Walter Arthur; Drewry, Marilyn; Hardin, Danny M.; He, Matt

    2011-01-01

    The University of Alabama in Huntsville (UAH), in collaboration with the Global Hydrology Resource Center, a NASA Earth Science Data Center, has provided information management for a number of NASA Airborne Field campaigns, both hurricane science investigations and satellite instrument validation. Effective field campaign management requires communication and coordination tools, including utilities for personnel to upload and share flight plans, weather forecasts, a variety of mission reports, preliminary science data, and personal photos. Beginning with the Genesis and Rapid Intensification Processes (GRIP) hurricane field campaign in 2010, we have provided these capabilities via a Drupal-based collaboration portal. This portal was reused and modified for the Midlatitude Continental Convective Clouds Experiment (MC3E), part of the Global Precipitation Measurement mission ground validation program. An end goal of these development efforts is the creation of a Drupal profile for field campaign management. This presentation will discuss experiences with Drupal in developing and using these collaboration portals. Topics will include Drupal modules used, advantages and disadvantages of working with Drupal in this context, and how the science teams used the portals in comparison with other communication and collaboration tools.

  16. Portal Schools Project, First Year Report.

    ERIC Educational Resources Information Center

    Lutonsky, Linda

    This document discusses the theory and philosophy of the Portal School strategy. According to the author, that strategy is a process for making an environment responsive to change; a way of providing a setting in which site, specific and locally determined programs, and theories can be adapted, implemented, and diffused; and a method for closing…

  17. Collaboration Portals for NASA's Airborne Field Campaigns

    NASA Astrophysics Data System (ADS)

    Conover, H.; Kulkarni, A.; Garrett, M.; Goodman, M.; Petersen, W. A.; Drewry, M.; Hardin, D. M.; He, M.

    2011-12-01

    The University of Alabama in Huntsville (UAH), in collaboration with the Global Hydrology Resource Center, a NASA Earth Science Data Center, has provided information management for a number of NASA Airborne Field campaigns, both hurricane science investigations and satellite instrument validation. Effective field campaign management requires communication and coordination tools, including utilities for personnel to upload and share flight plans, weather forecasts, a variety of mission reports, preliminary science data, and personal photos. Beginning with the Genesis and Rapid Intensification Processes (GRIP) hurricane field campaign in 2010, we have provided these capabilities via a Drupal-based collaboration portal. This portal was reused and modified for the Midlatitude Continental Convective Clouds Experiment (MC3E), part of the Global Precipitation Measurement mission ground validation program. An end goal of these development efforts is the creation of a Drupal profile for field campaign management. This presentation will discuss experiences with Drupal in developing and using these collaboration portals. Topics will include Drupal modules used, advantages and disadvantages of working with Drupal in this context, and how the science teams used the portals in comparison with other communication and collaboration tools.

  18. ExPASy: SIB bioinformatics resource portal.

    PubMed

    Artimo, Panu; Jonnalagedda, Manohar; Arnold, Konstantin; Baratin, Delphine; Csardi, Gabor; de Castro, Edouard; Duvaud, Séverine; Flegel, Volker; Fortier, Arnaud; Gasteiger, Elisabeth; Grosdidier, Aurélien; Hernandez, Céline; Ioannidis, Vassilios; Kuznetsov, Dmitry; Liechti, Robin; Moretti, Sébastien; Mostaguir, Khaled; Redaschi, Nicole; Rossier, Grégoire; Xenarios, Ioannis; Stockinger, Heinz

    2012-07-01

    ExPASy (http://www.expasy.org) has worldwide reputation as one of the main bioinformatics resources for proteomics. It has now evolved, becoming an extensible and integrative portal accessing many scientific resources, databases and software tools in different areas of life sciences. Scientists can henceforth access seamlessly a wide range of resources in many different domains, such as proteomics, genomics, phylogeny/evolution, systems biology, population genetics, transcriptomics, etc. The individual resources (databases, web-based and downloadable software tools) are hosted in a 'decentralized' way by different groups of the SIB Swiss Institute of Bioinformatics and partner institutions. Specifically, a single web portal provides a common entry point to a wide range of resources developed and operated by different SIB groups and external institutions. The portal features a search function across 'selected' resources. Additionally, the availability and usage of resources are monitored. The portal is aimed for both expert users and people who are not familiar with a specific domain in life sciences. The new web interface provides, in particular, visual guidance for newcomers to ExPASy.

  19. Liver surgery in cirrhosis and portal hypertension.

    PubMed

    Hackl, Christina; Schlitt, Hans J; Renner, Philipp; Lang, Sven A

    2016-03-07

    The prevalence of hepatic cirrhosis in Europe and the United States, currently 250 patients per 100000 inhabitants, is steadily increasing. Thus, we observe a significant increase in patients with cirrhosis and portal hypertension needing liver resections for primary or metastatic lesions. However, extended liver resections in patients with underlying hepatic cirrhosis and portal hypertension still represent a medical challenge in regard to perioperative morbidity, surgical management and postoperative outcome. The Barcelona Clinic Liver Cancer classification recommends to restrict curative liver resections for hepatocellular carcinoma in cirrhotic patients to early tumor stages in patients with Child A cirrhosis not showing portal hypertension. However, during the last two decades, relevant improvements in preoperative diagnostic, perioperative hepatologic and intensive care management as well as in surgical techniques during hepatic resections have rendered even extended liver resections in higher-degree cirrhotic patients with portal hypertension possible. However, there are few standard indications for hepatic resections in cirrhotic patients and risk stratifications have to be performed in an interdisciplinary setting for each individual patient. We here review the indications, the preoperative risk-stratifications, the morbidity and the mortality of extended resections for primary and metastatic lesions in cirrhotic livers. Furthermore, we provide a review of literature on perioperative management in cirrhotic patients needing extrahepatic abdominal surgery and an overview of surgical options in the treatment of hepatic cirrhosis.

  20. Collaboration Portals for NASA's Airborne Field Campaigns

    NASA Technical Reports Server (NTRS)

    Conover, Helen; Kulkami, Ajinkya; Garrett, Michele; Goodman, Michael; Peterson, Walter Arthur; Drewry, Marilyn; Hardin, Danny M.; He, Matt

    2011-01-01

    The University of Alabama in Huntsville (UAH), in collaboration with the Global Hydrology Resource Center, a NASA Earth Science Data Center, has provided information management for a number of NASA Airborne Field campaigns, both hurricane science investigations and satellite instrument validation. Effective field campaign management requires communication and coordination tools, including utilities for personnel to upload and share flight plans, weather forecasts, a variety of mission reports, preliminary science data, and personal photos. Beginning with the Genesis and Rapid Intensification Processes (GRIP) hurricane field campaign in 2010, we have provided these capabilities via a Drupal-based collaboration portal. This portal was reused and modified for the Midlatitude Continental Convective Clouds Experiment (MC3E), part of the Global Precipitation Measurement mission ground validation program. An end goal of these development efforts is the creation of a Drupal profile for field campaign management. This presentation will discuss experiences with Drupal in developing and using these collaboration portals. Topics will include Drupal modules used, advantages and disadvantages of working with Drupal in this context, and how the science teams used the portals in comparison with other communication and collaboration tools.

  1. [Portal hypertension in pediatrics: II: Hemorrhagic complications].

    PubMed

    Costaguta, Alejandro; Alvarez, Fernando

    2010-08-01

    Bleeding from esophageal varices is the most severe complication of portal hypertension, and should be managed in specially trained centers. Vasoactive drugs, mainly octreotide, plus endoscopic treatment are able to control bleeding in 90% of the cases. Rescue treatments like TIPS and surgery should be immediately available for those who do not stop bleeding or have varices difficult to manage.

  2. Intercomprehension: A Portal to Teachers' Intercultural Sensitivity

    ERIC Educational Resources Information Center

    Pinho, Ana Sofia

    2015-01-01

    The development of opportunities for teachers' professional development in plurilingual and intercultural education is a key issue in language teacher education and "intercomprehension" (IC) can provide a potential portal for the development of teachers' intercultural sensitivity. Particularly relevant to this is the creation of powerful…

  3. Regulations.gov Federal Regulatory Portal

    ERIC Educational Resources Information Center

    Ashlin, John; Davis, Richard; Dalecky, Selene; Grasso, Richard; LaPlant, Lisa; Morales, Oscar; Nelson, Jennifer; White, Michael; Whitt, Sharon A.

    2004-01-01

    The Regulations.gov Online Rulemaking Project is 1 of the 24 e-Government Initiatives on the President's Management Agenda (PMA), which was announced by the White House in 2001. The Regulations.gov Web site is the central electronic rulemaking portal for the federal government. Through a single Web site, citizens can search, view, and comment on…

  4. Cross-Cultural Dimensions of Internet Portals.

    ERIC Educational Resources Information Center

    Zahir, Sajjad; Dobing, Brian; Hunter, M. Gordon

    2002-01-01

    Discussion of cultural influences on new technologies focuses on an analysis of full-service national Web portals from different countries that investigated whether the adoption of new technologies resulted in cultural convergence or divergence. Results showed differences in appearance and features offered that can be attributed to cultural…

  5. Cross-Cultural Dimensions of Internet Portals.

    ERIC Educational Resources Information Center

    Zahir, Sajjad; Dobing, Brian; Hunter, M. Gordon

    2002-01-01

    Discussion of cultural influences on new technologies focuses on an analysis of full-service national Web portals from different countries that investigated whether the adoption of new technologies resulted in cultural convergence or divergence. Results showed differences in appearance and features offered that can be attributed to cultural…

  6. Portal hypertension as portrayed by marked hepatosplenomegaly: case report

    SciTech Connect

    Greene, R.A.

    1987-12-01

    The liver is vulnerable to as host of disease processes, including portal hypertension. This is a severe hepatic condition in which the liver is subject to numerous imbalances: increased hepatic blood flow, increased portal vein pressure due to extrahepatic portal vein obstruction, and/or increases in hepatic blood flow resistance. Although many diseases states may be responsible for the development of portal hypertension, it is most commonly associated with moderately severe or advanced cirrhosis. Advanced, untreated portal hypertension may cause additional complications such as hepatosplenomegaly, gastrointestinal bleeding, and ascites.

  7. Anatomy of the Portal Vein Bifurcation: Implication for Transjugular Intrahepatic Portal Systemic Shunts

    SciTech Connect

    Kwok, Philip Chong-hei Ng, Wai Fu; Lam, Christine Suk-yee; Tsui, Polly Po; Faruqi, Asma

    2003-06-15

    Purpose: The relationship of the portalvein bifurcation to the liver capsule in Asians, which is an important landmark for transjugular intrahepatic portosystemic shunt, has not previously been described. Methods: The anatomy of the portal vein bifurcation was studied in 70 adult Chinese cadavers; it was characterized as intrahepatic or extrahepatic. The length of the exposed portion of the right and left portal veins was measured when the bifurcation was extrahepatic. Results: The portal vein bifurcation was intrahepatic in 37 cadavers (53%) and extrahepatic in 33 cadavers (47%). The mean length of the right and left extrahepatic portal veins was 0.96 cm and 0.85 cm respectively.Both were less than or equal to 2 cm in 94% of the cadavers with extrahepatic bifurcation. There was no correlation between the presence of cirrhosis and the location of the portal vein bifurcation(p 1.0). There was no statistically significant difference in liver mass in cadavers with either extrahepatic or intrahepatic bifurcation (p =0.40). Conclusions: These findings suggest that fortransjugular intrahepatic portosystemic shunt placement, a portal vein puncture 2 cm from the bifurcation will be safe in most cases.

  8. Restriction of drinking water abrogates splanchnic vasodilation and portal hypertension in portal vein-ligated rats.

    PubMed

    Heinemann, Akos; Schuligoi, Rufina; Lippe, Irmgard T; Stauber, Rudolf E

    2009-01-01

    Portal hypertension is associated with splanchnic vasodilation which is claimed responsible for the maintenance of chronically elevated portal pressure. Vasopressin analogues are used in the treatment of acute variceal bleeding, since they effectively reduce splanchnic blood flow and portal pressure. Dehydration stimulates the release of endogenous vasopressin release. Here we compared the effects of deprivation of drinking water for 18 h with those of vasopressin infusion on mesenteric hemodynamics in portal vein-ligated (PVL) and sham-operated (SHAM) rats. Blood flow in the superior mesenteric artery was measured with the ultrasonic transit time shift technique. Deprivation of drinking water had no hemodynamic effects in SHAM rats, but completely reversed the mesenteric hyperemia and portal hypertension in PVL rats to figures measured in SHAM rats, without altering blood pressure. Similarly, intravenous infusion of low doses of arginine vasopressin (1-10 pmol/min) selectively reduced mesenteric blood flow in PVL rats but had little effect in SHAM rats. These data suggest that control of water balance or aquaretic drugs might have beneficial effects on splanchnic hemodynamics and portal pressure in advanced liver disease, possibly by stimulating endogenous vasopressin release.

  9. Synteny Portal: a web-based application portal for synteny block analysis

    PubMed Central

    Lee, Jongin; Hong, Woon-young; Cho, Minah; Sim, Mikang; Lee, Daehwan; Ko, Younhee; Kim, Jaebum

    2016-01-01

    Recent advances in next-generation sequencing technologies and genome assembly algorithms have enabled the accumulation of a huge volume of genome sequences from various species. This has provided new opportunities for large-scale comparative genomics studies. Identifying and utilizing synteny blocks, which are genomic regions conserved among multiple species, is key to understanding genomic architecture and the evolutionary history of genomes. However, the construction and visualization of such synteny blocks from multiple species are very challenging, especially for biologists with a lack of computational skills. Here, we present Synteny Portal, a versatile web-based application portal for constructing, visualizing and browsing synteny blocks. With Synteny Portal, users can easily (i) construct synteny blocks among multiple species by using prebuilt alignments in the UCSC genome browser database, (ii) visualize and download syntenic relationships as high-quality images, (iii) browse synteny blocks with genetic information and (iv) download the details of synteny blocks to be used as input for downstream synteny-based analyses, all in an intuitive and easy-to-use web-based interface. We believe that Synteny Portal will serve as a highly valuable tool that will enable biologists to easily perform comparative genomics studies by compensating limitations of existing tools. Synteny Portal is freely available at http://bioinfo.konkuk.ac.kr/synteny_portal. PMID:27154270

  10. Portal hypertension associated with primary hypoplasia of the hepatic portal vein in dogs.

    PubMed

    Van den Ingh, T S; Rothuizen, J; Meyer, H P

    1995-10-21

    Portal hypertension caused by primary hypoplasia of the portal vein was diagnosed in 42 dogs. The portal hypertension was manifested by the presence of multiple portosystemic collateral vessels. The main clinical signs were retarded growth or weight loss, apathy, intermittent diarrhoea and vomiting, anorexia, abdominal distension and polydipsia. Major findings at physical examination were ascites in 23 dogs and neurological signs in 16 dogs. The dogs had increased activities of liver enzymes in plasma and increased fasting levels of total bile acids and ammonia; in many of the dogs the packed red cell volume, total serum protein and albumin were low. Gross inspection of the portal vein revealed a patent but underdeveloped extrahepatic vein in 13 of the dogs. Microscopic examination of the liver revealed hypoplasia of the intrahepatic portal veins in all the dogs, and this was associated with minor arteriolar proliferation and absence of fibrosis in 12 of them, with moderate to marked arteriolar proliferation often combined with ductular proliferation in 13, and with marked portal fibrosis (formerly described as hepatoportal fibrosis) with a varying number of arteriolar and bile ductular structures in 17 of the dogs. The disease affected mainly young dogs, and was most likely to have been of congenital origin.

  11. Starting physiology: bioelectrogenesis.

    PubMed

    Baptista, Vander

    2015-12-01

    From a Cartesian perspective of rational analysis, the electric potential difference across the cell membrane is one of the fundamental concepts for the study of physiology. Unfortunately, undergraduate students often struggle to understand the genesis of this energy gradient, which makes the teaching activity a hard task for the instructor. The topic of bioelectrogenesis encompasses multidisciplinary concepts, involves several mechanisms, and is a dynamic process, i.e., it never turns off during the lifetime of the cell. Therefore, to improve the transmission and acquisition of knowledge in this field, I present an alternative didactic model. The design of the model assumes that it is possible to build, in a series of sequential steps, an assembly of proteins within the membrane of an isolated cell in a simulated electrophysiology experiment. Initially, no proteins are inserted in the membrane and the cell is at a baseline energy state; the extracellular and intracellular fluids are at thermodynamic equilibrium. Students are guided through a sequence of four steps that add key membrane transport proteins to the model cell. The model is simple at the start and becomes progressively more complex, finally producing transmembrane chemical and electrical gradients. I believe that this didactic approach helps instructors with a more efficient tool for the teaching of the mechanisms of resting membrane potential while helping students avoid common difficulties that may be encountered when learning this topic.

  12. Hypersensitivity of mesenteric veins to 5-hydroxytryptamine- and ketanserin-induced reduction of portal pressure in portal hypertensive rats.

    PubMed Central

    Cummings, S. A.; Groszmann, R. J.; Kaumann, A. J.

    1986-01-01

    Isolated superior mesenteric veins from portal hypertensive rats were 3 to 10 times more sensitive to 5-hydroxytryptamine (5-HT) and 3 times less sensitive to (-)-noradrenaline than veins from sham-operated rats. The sensitivity to vasopressin did not differ in the 2 groups. Ketanserin competitively antagonized the effects of 5-HT in superior mesenteric veins and portal veins with high affinity (KB values 0.1-0.3 nM), as expected for 5-HT2-receptors. The affinity of ketanserin for 5-HT2-receptors was similar in veins from normal, sham-operated or portal-hypertensive rats. Intraportal injections of low doses of 5-HT caused increases in portal pressure which were more pronounced in portal hypertensive rats than in sham-operated rats and were blocked by 0.3 mg kg-1 ketanserin in both groups. Ketanserin 0.3 mg kg-1 did not block the portal pressor response to (-)-noradrenaline in either group of rats. In portal hypertensive rats but not in sham-operated rats, 0.3 mg kg-1 ketanserin caused decreases in portal pressure, portal flow and cardiac output, as estimated by radioactive microspheres. The reduction in portal pressure caused by ketanserin was due mainly to a decrease in portal venous inflow secondary to a decreased cardiac output. The reduction in cardiac output, which was observed only in the portal hypertensive rats but not in sham-operated rats, is consistent with venous dilatation and pooling of blood in the portal venous system. The venous pooling could be secondary to the blockade of 5-HT2-receptors in the portal venous system. It is proposed that ketanserin should be explored for the treatment of patients with portal hypertension. PMID:3801785

  13. Enoxaparin does not ameliorate liver fibrosis or portal hypertension in rats with advanced cirrhosis.

    PubMed

    Fortea, José I; Zipprich, Alexander; Fernandez-Mena, Carolina; Puerto, Marta; Bosoi, Cristina R; Almagro, Jorge; Hollenbach, Marcus; Bañares, Juan; Rodríguez-Sánchez, Belén; Cercenado, Emilia; Clément, Marc-André; Rose, Christopher F; Bañares, Rafael; Vaquero, Javier; Ripoll, Cristina

    2017-06-30

    Recent studies suggest that heparins reduce liver fibrosis and the risk of decompensation of liver disease. Here, we evaluated the effects of enoxaparin in several experimental models of advanced cirrhosis. Cirrhosis was induced in male Sprague-Dawley (SD) rats by: i. Oral gavage with carbon tetrachloride (CCl4ORAL ), ii. Bile duct ligation (BDL), and iii. CCl4 inhalation (CCl4INH ). Rats received saline or enoxaparin s.c. (40 IU/Kg/d or 180 IU/Kg/d) following various protocols. Blood biochemical parameters, liver fibrosis, endothelium- and fibrosis-related genes, portal pressure, splenomegaly, bacterial translocation, systemic inflammation, and survival were evaluated. Endothelial dysfunction was assessed by in-situ bivascular liver perfusions. Enoxaparin did not ameliorate liver function, liver fibrosis, pro-fibrogenic gene expression, portal hypertension, splenomegaly, ascites development and infection, serum IL-6 levels or survival in rats with CCl4ORAL or BDL-induced cirrhosis. Contrarily, enoxaparin worsened portal pressure in BDL rats and decreased survival in CCl4ORAL rats. In CCl4INH rats, enoxaparin had no effects on hepatic endothelial dysfunction, except for correcting the hepatic arterial dysfunction when enoxaparin was started with the CCl4 exposure. In these rats, however, enoxaparin increased liver fibrosis and the absolute values of portal venous and sinusoidal resistance. Our results do not support a role of enoxaparin for improving liver fibrosis, portal hypertension or endothelial dysfunction in active disease at advanced stages of cirrhosis. These disease-related factors and the possibility of a limited therapeutic window should be considered in future studies evaluating the use of anticoagulants in cirrhosis. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

  14. In vitro vascular responsiveness to norepinephrine in experimental portal hypertension.

    PubMed

    Bomzon, A; Jacob, G; Lee, S S; Meddings, J

    1991-02-01

    It has been postulated that loss of response to norepinephrine accounts in part for the portal hypertension, systemic hypotension, and generalised vascular dilatation of chronic liver disease. The in vitro vascular responsiveness to norepinephrine was measured in aortic rings and portal veins excised from four different rat models of hepatic disease with and without portal hypertension, hepatocellular damage, and hyperbilirubinemia--the carbon tetrachloride (CCl4) cirrhotic rat with portal hypertension, the five-week chronic bile duct ligated and resected (CBDL) cirrhotic rat with portal hypertension and hyperbilirubinemia, the 10-day partial ligated portal vein (PVL) portal hypertensive rat without hepatocellular damage and hyperbilirubinemia, and the three-day bile duct ligated (ABDL) rat with acute hepatocellular damage and hyperbilirubinemia but without portal hypertension. Sham-treated or operated groups for each model were also prepared. Vascular reactivity of the aortic rings to norepinephrine was potentiated in the three portal hypertensive groups, and attenuated in the model of acute cholestasis. No consistent pattern of response to norepinephrine was evident in the portal veins. Based upon the presented in vitro data and the discussed limitations of an in vitro study, we conclude that it is unlikely that the loss of response to norepinephrine accounts for the portal hypertension, systemic hypotension, and generalised vascular dilatation of chronic liver disease.

  15. Noninvasive Evaluation of Portal Hypertension: Emerging Tools and Techniques

    PubMed Central

    Snowdon, V. K.; Guha, N.; Fallowfield, J. A.

    2012-01-01

    Portal hypertension is the main cause of complications in patients with cirrhosis. However, evaluating the development and progression of portal hypertension represents a challenge for clinicians. There has been considerable focus on the potential role of noninvasive markers of portal hypertension that could be used to stratify patients with respect to the stage of portal hypertension and to monitor disease progression or treatment response in a longitudinal manner without having to undertake repeated invasive assessment. The pathogenesis of portal hypertension is increasingly understood and emerging knowledge of the vascular processes that underpin portal hypertension has paved the way for exploring novel biomarkers of vascular injury, angiogenesis, and endothelial dysfunction. In this paper we focus on the pathogenesis of portal hypertension and potential non-invasive biomarkers with particular emphasis on serum analytes. PMID:22720166

  16. Successful Portal Vein Stent Placement in a Child with Cavernomatous Replacement of the Portal Vein After Partial Liver Transplantation: The Importance of a Recognizable Portal Vein Remnant.

    PubMed

    Miraglia, Roberto; Maruzzelli, Luigi; Caruso, Settimo; Ricotta, Calogero; Riva, Silvia; Burgio, Gaetano; Spada, Marco; Luca, Angelo

    2015-12-01

    Late portal vein thrombosis with cavernomatous replacement has been reported in 4.5% of pediatric patients who have undergone partial liver transplantation. In such cases, minimally invasive radiological treatments have a high failure rate. We report a successful case of percutaneous recanalization of the portal vein remnant, and subsequent stent placement, in a pediatric patient who underwent left lateral split liver transplantation with cavernomatous replacement of the portal vein.

  17. From Head Start to Sure Start: Reflections on Policy Transfer

    ERIC Educational Resources Information Center

    Welshman, John

    2010-01-01

    This article uses the history of debates over the US Head Start programme (1965), Early Head Start (1994) and the UK Sure Start initiative (1998), as a window on to policy transfer. In all the three, the aim was that early intervention could offer a means of boosting children's educational attainment and of countering the wider effects of poverty…

  18. Head Start Works! Two Head Start Veterans Share Their Views.

    ERIC Educational Resources Information Center

    Mallory, Nancy J.; Goldsmith, Nancy A.

    1990-01-01

    Elements of a successful Head Start program are described. These elements are provision of comprehensive services, parent involvement and family support, a commitment to meeting local needs, training and technical assistance support, and use of a collaborative approach. Anecdotes about two Head Start parents and a former Head Start participant are…

  19. MYC — EDRN Public Portal

    Cancer.gov

    The oncogenic protein MYC, previously known as c-MYC, is a multifunctional, nuclear phosphoprotein that plays a role in cell cycle progression, apoptosis and cellular transformation. It participates in the regulation of gene transcription of specific target genes. MYC binds DNA in a non-specific manner, yet also specifically recognizes the core sequence 5'-CAC[GA]TG-3'. Mutations, overexpression, rearrangement and translocation of the MYC gene have been associated with a variety of hematopoietic tumors, leukemias and lymphomas, including Burkitt lymphoma. Evidence shows that alternative translation initiations from an upstream, in-frame non-AUG (CUG) and a downstream AUG start site result in the production of two isoforms with distinct N-termini.

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

    SciTech Connect

    Kim, Soo Chin; Kim, Hyo-Cheol Chung, Jin Wook; Jae, Hwan Jun; Park, Jae Hyung

    2011-02-15

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

  1. Flu Season Starting to Peak

    MedlinePlus

    ... page: https://medlineplus.gov/news/fullstory_162917.html Flu Season Starting to Peak More severe strain of ... 6, 2017 FRIDAY, Jan. 6, 2017 (HealthDay News) -- Flu season is in full swing and it's starting ...

  2. Towards easing the configuration and new team member accommodation for open source software based portals

    NASA Astrophysics Data System (ADS)

    Fu, L.; West, P.; Zednik, S.; Fox, P. A.

    2013-12-01

    For simple portals such as vocabulary based services, which contain small amounts of data and require only hyper-textual representation, it is often an overkill to adopt the whole software stack of database, middleware and front end, or to use a general Web development framework as the starting point of development. Directly combining open source software is a much more favorable approach. However, our experience with the Coastal and Marine Spatial Planning Vocabulary (CMSPV) service portal shows that there are still issues such as system configuration and accommodating a new team member that need to be handled carefully. In this contribution, we share our experience in the context of the CMSPV portal, and focus on the tools and mechanisms we've developed to ease the configuration job and the incorporation process of new project members. We discuss the configuration issues that arise when we don't have complete control over how the software in use is configured and need to follow existing configuration styles that may not be well documented, especially when multiple pieces of such software need to work together as a combined system. As for the CMSPV portal, it is built on two pieces of open source software that are still under rapid development: a Fuseki data server and Epimorphics Linked Data API (ELDA) front end. Both lack mature documentation and tutorials. We developed comparison and labeling tools to ease the problem of system configuration. Another problem that slowed down the project is that project members came and went during the development process, so new members needed to start with a partially configured system and incomplete documentation left by old members. We developed documentation/tutorial maintenance mechanisms based on our comparison and labeling tools to make it easier for the new members to be incorporated into the project. These tools and mechanisms also provided benefit to other projects that reused the software components from the CMSPV

  3. Improving Diabetes Management With a Patient Portal: Qualitative Study of a Diabetes Self-Management Portal

    PubMed Central

    Dupak, Kourtney; Kuehner, Zachary; Leonard, Kevin; Lovrics, Emily; Picton, Peter; Seto, Emily; Cafazzo, Joe

    2012-01-01

    Background Effective management and care of diabetes is crucial to reducing associated risks such as heart disease and kidney failure. With increasing access and use of the Internet, online chronic disease management is being explored as a means of providing patients with support and the necessary tools to monitor and manage their disease. Objective The objective of our study was to evaluate the experience of patients and providers using an online diabetes management portal for patients. Methods Participants were recruited from a large sample population of 887 for a follow-up questionnaire to be completed after 6 months of using the patient portal. Participants were presented with the option to participate in an additional interview and, if the participant agreed, a time and date was scheduled for the interview. A 5-item, open-ended questionnaire was used to capture providers' opinions of the patient portal. Providers included general practitioners (GPs), nurses, nurse practitioners (NPs), dieticians, diabetes educators (DECs), and other clinical staff. Results A total of 854 patients were consented for the questionnaire. Seventeen (8 male, 9 female) patients agreed to participate in a telephone interview. Sixty-four health care providers completed the five open-ended questions; however, an average of 48.2 responses were recorded per question. Four major themes were identified and will be discussed in this paper. These themes have been classified as: facilitators of disease management, barriers to portal use, patient-provider communication and relationship, and recommendations for portal improvements. Conclusions This qualitative study shows that online chronic disease management portals increase patient access to information and engagement in their health care, but improvements in the portal itself may improve usability and reduce attrition. Furthermore, this study identifies a grey area that exists in the roles that GPs and AHPs should play in the facilitation of

  4. Portals to Wonderland: Health portals lead to confusing information about the effects of health care

    PubMed Central

    Glenton, Claire; Paulsen, Elizabeth J; Oxman, Andrew D

    2005-01-01

    Background The Internet offers a seemingly endless amount of health information of varying quality. Health portals, which provide entry points to quality-controlled collections of websites, have been hailed as a solution to this problem. The objective of this study is to assess the extent to which government-run health portals provide access to relevant, valid and understandable information about the effects of health care. Methods We selected eight clinically relevant questions for which there was a systematic review, searched four portals for answers, and compared the answers we found to the results of the systematic reviews. Results Our searches resulted in 3400 hits, 155 of which mentioned both the condition and the intervention in one of the eight questions. Sixty-three of the 155 web pages did not give any information about the effect of the intervention. Seventy-seven qualitatively described the effects of the intervention. Twenty-six of these had information that was too unclear to be categorised; 15 were not consistent with the systematic review; and 36 were consistent with the review, but usually did not mention what happens without the intervention, what outcomes have been measured or when they were measured. Fifteen web pages quantitatively described effects. Four of these were abstracts from the systematic review, nine had information that was incomplete and potentially misleading because of a lack of information about people not receiving the intervention and the length of follow-up; one had information that was consistent with the review, but only referred to three trials whereas the review included six; and one was consistent with the review. Conclusion Information accessible through health portals is unlikely to be based on systematic reviews and is often unclear, incomplete and misleading. Portals are only as good as the websites they lead to. Investments in national health portals are unlikely to benefit consumers without investments in the

  5. Involving Parents in Head Start.

    ERIC Educational Resources Information Center

    Leik, Robert K.; Chalkley, Mary Anne

    1989-01-01

    The Head Start Family Impact Project involved a one-year study of 81 single mothers and their children from the Hennepin County Head Start Program. This program was planned to test the notion that parent-child interaction in the context of Head Start would be the most beneficial form of parental involvement. An assessment session, which measured…

  6. Yes, Head Start Improves Reading!

    ERIC Educational Resources Information Center

    Larsen, Janet J.

    This study evaluated the effect of a Head Start program on children's intelligence and reading achievement test scores over a three year period. Each of 25 Head Start children was paired with a non-Head Start child of the same reace, sex, age, socioeconomic status, date of school entrance, kindergarten experience, promotion record, and type of…

  7. Volar Central Portal in Wrist Arthroscopy

    PubMed Central

    Corella, F.; Ocampos, M.; Cerro, M. Del; Larrainzar-Garijo, R.; Vázquez, T.

    2016-01-01

    Background Nowadays, the wrist is not limited to a dorsal visualization; the joint can be thought of as a “box,” which can be visualized from almost every perspective. The purpose of this study was to describe a new volar central portal for the wrist, following three principles: a single incision that allows access to both the radiocarpal and midcarpal joints, centered on the lunate, with the volar structures at risk protected not only by retractors, but also by tendons. Description of Technique The incision begins in the distal wrist crease and extended 1.5 cm proximally up to the proximal wrist crease, following the axis of the third intermetacarpal space. The flexor superficialis tendons are identified and retracted toward the radial side. Next, the fourth and fifth flexor digitorum profundus tendons are retracted toward the ulnar side, while the third and second tendons are retracted toward the radial side. The volar central midcarpal portal is performed under direct vision just over the anterior horn of the lunate through the Poirier space. The volar central radiocarpal portal is created under the lunate through the interval between the ulnocarpal ligaments and the short radioulnar ligament. Methods An anatomical study was performed on 14 cadaver specimens. Two data were recorded: iatrogenic injuries of the structures at risk and the distances to the structures at risk. Results The median (interquartile range [IQR]) distances from the volar central radiocarpal portal to the median nerve, palmar cutaneous branch of the median nerve, and ulnar neurovascular bundle were 10.5 (7.8–15.0), 18.5 (15.8–20.3), and 7.0 (5.0–10.5) mm, respectively. The median (IQR) distances from the volar central midcarpal portal to the median nerve, palmar cutaneous branch of the median nerve, and ulnar neurovascular bundle were 7.0 (4.8–10.3), 16.0 (14.8–19.0), and 4.5 (3.8–9.0) mm, respectively. No iatrogenic injuries were observed. Conclusion The volar

  8. Volar Central Portal in Wrist Arthroscopy.

    PubMed

    Corella, F; Ocampos, M; Cerro, M Del; Larrainzar-Garijo, R; Vázquez, T

    2016-03-01

    Background Nowadays, the wrist is not limited to a dorsal visualization; the joint can be thought of as a "box," which can be visualized from almost every perspective. The purpose of this study was to describe a new volar central portal for the wrist, following three principles: a single incision that allows access to both the radiocarpal and midcarpal joints, centered on the lunate, with the volar structures at risk protected not only by retractors, but also by tendons. Description of Technique The incision begins in the distal wrist crease and extended 1.5 cm proximally up to the proximal wrist crease, following the axis of the third intermetacarpal space. The flexor superficialis tendons are identified and retracted toward the radial side. Next, the fourth and fifth flexor digitorum profundus tendons are retracted toward the ulnar side, while the third and second tendons are retracted toward the radial side. The volar central midcarpal portal is performed under direct vision just over the anterior horn of the lunate through the Poirier space. The volar central radiocarpal portal is created under the lunate through the interval between the ulnocarpal ligaments and the short radioulnar ligament. Methods An anatomical study was performed on 14 cadaver specimens. Two data were recorded: iatrogenic injuries of the structures at risk and the distances to the structures at risk. Results The median (interquartile range [IQR]) distances from the volar central radiocarpal portal to the median nerve, palmar cutaneous branch of the median nerve, and ulnar neurovascular bundle were 10.5 (7.8-15.0), 18.5 (15.8-20.3), and 7.0 (5.0-10.5) mm, respectively. The median (IQR) distances from the volar central midcarpal portal to the median nerve, palmar cutaneous branch of the median nerve, and ulnar neurovascular bundle were 7.0 (4.8-10.3), 16.0 (14.8-19.0), and 4.5 (3.8-9.0) mm, respectively. No iatrogenic injuries were observed. Conclusion The volar central portal is

  9. Assessment of percutaneous transhepatic portal vein embolization with portal vein stenting for perihilar cholangiocarcinoma with severe portal vein stenosis.

    PubMed

    Hyodo, Ryota; Suzuki, Kojiro; Ebata, Tomoki; Komada, Tomohiro; Mori, Yoshine; Yokoyama, Yukihiro; Igami, Tsuyoshi; Sugawara, Gen; Naganawa, Shinji; Nagino, Masato

    2015-04-01

    The aim of the present study was to assess the clinical efficiency of portal vein (PV) stenting when performed with preoperative percutaneous transhepatic portal vein embolization (PTPVE) in patients with severe PV stenosis due to tumor invasion. Between 2007 and 2013, four consecutive patients (one male, three females; mean age, 52 years; age range, 25-73 years) with perihilar cholangiocarcinoma and PV stenosis underwent PTPVE and PV stenting. Patients were analyzed with regard to the procedure, hypertrophy of the future remnant liver (FRL), and plasma clearance rate of indocyanine green by the FRL (ICGK-F). Further, the %FRL volume increase in PTPVE was compared between the stenting group and the usual PTPVE group who have perihilar cholangiocarcinomas without PV stenosis. Preoperative PTPVE with PV stenting was successfully performed and portal flow to the FRL improved after stenting in all four patients. The %FRL volume increase was 18-60% (mean, 34%) in the stenting group and was 12-51% (mean, 21%) in the usual PTPVE group. The ICGK-F value after PTPVE exceeded 0.05 in all four patients. All patients achieved R0 resection. Preoperative PTPVE with PV stenting appears to be feasible in cases of severe PV tumor invasion and stenosis. This procedure may allow a broader indication for surgery. © 2014 Japanese Society of Hepato-Biliary-Pancreatic Surgery.

  10. Patient web portals, disease management, and primary prevention.

    PubMed

    Coughlin, Steven S; Prochaska, Judith J; Williams, Lovoria B; Besenyi, Gina M; Heboyan, Vahé; Goggans, D Stephen; Yoo, Wonsuk; De Leo, Gianluca

    2017-01-01

    Efforts aimed at health care reform and continued advances in information technologies have prompted interest among providers and researchers in patient web portals. Patient web portals are password-protected online websites that offer the patients 24-hour access to personal health information from anywhere with an Internet connection. This article, which is based upon bibliographic searches in PubMed, reviews important developments in web portals for primary and secondary disease prevention, including patient web portals tethered to electronic medical records, disease-specific portals, health disparities, and health-related community web portals. Although findings have not been uniformly positive, several studies of the effectiveness of health care system patient portals in chronic disease management have shown promising results with regard to patient outcomes. Patient web portals have also shown promising results in increasing adherence with screening recommendations. Racial and ethnic minorities, younger persons, and patients who are less educated or have lower health literacy have been found to be less likely to use patient portals. Additional studies are needed of the utility and effectiveness of different elements of web portals for different patient populations. This should include additional diseases and health topics such as smoking cessation and weight management.

  11. Retropatellar Accessory Portals for Improved Access to the Patella

    PubMed Central

    Koh, Jason L.; Logli, Anthony L.

    2016-01-01

    Background: Standard knee arthroscopy portals are frequently used to address retropatellar chondral pathology. Alternative portals may offer a safe and simple substitute, particularly when reaching the base of deep lesions is required. Purpose: To describe and assess the safety of accessory retropatellar portals. Study Design: Descriptive laboratory study. Methods: An anatomic study was performed on 10 fresh-frozen cadaveric knees. Medial and lateral retropatellar portals were created, and the distance to adjacent neurovascular structures (common peroneal nerve [CPN] and infrapatellar branch of the saphenous nerve [IPBSN]) and bony landmarks (medial and lateral epicondyles and margins of the midpatella) was recorded. A clinical account of portal use is provided through a retrospective chart review. Results: The medial and lateral retropatellar portals were a mean 15.8 ± 15.5 mm and 53.8 ± 7.2 mm from the IPBSN and CPN, respectively. No nerves were contacted in any specimens. Clinically, the portals have been used in 109 cases over a 7-year period without complication. Conclusion: The high level of IPBSN variability poses some risk to medial portal use; however, there is little to no risk laterally. Clinical experience with portals suggests that they can be used safely. We recommend careful blunt dissection to minimize chance of iatrogenic nerve injury. Clinical Relevance: Retropatellar portals may offer improved access to chondral lesions of the patella, thereby safely allowing one to maintain an arthroscopic approach. PMID:27900340

  12. Cavo-portal transposition in pediatric liver transplant recipients.

    PubMed

    Szymczak, Marek; Kaliciński, Piotr; Kwiatkowski, Wojciech; Broniszczak, Dorota; Stefanowicz, Marek

    2014-06-10

    Cavo-portal transposition (CPT) at liver transplantation (LTx) allows portal revascularization of the liver in recipients in whom portal system thrombosis does not allow performance of porto-portal anastomosis. The aim was to present the cases of 2 children who underwent LTx and CPT in our institution. 1. A 10-year-old boy, after Kasai procedure and living donor LTx, was qualified for retransplantation 9 years after first LTx complicated with late portal vein thrombosis, portal hypertension, hypersplenism, and multiple GI bleeding episodes, after splenectomy and meso-caval shunt preventing GI bleeding. At retransplant surgery, CPT was done. Actual follow-up was 40 months. Doppler ultrasound and angio CT show normal flow within the graft's portal vein. Biochemical parameters were within normal range. There was no bleeding from the gastrointestinal tract. 2. A 14-month-old child after Kasai procedure was qualified for living donor liver transplantation. During surgery, thrombosis of the recipient portal system was found, which was not diagnosed before. The CPT was done. There were no complications during the postoperative course. The actual follow-up was 32 months, and the patient is doing well, with normal liver and renal function, without hypersplenism or ascites. There was no gastrointestinal bleeding. Doppler ultrasound showed normal intrahepatic portal and arterial flow in the transplanted liver. Cavo-portal transposition is an important option in portal vein revascularization in liver transplant recipients without access to the portal system. Long-term observation of these 2 cases did not show any late problems (e.g., bleeding from the gastrointestinal tract, renal function, hyperammonemia, ascites) related to cavo-portal transposition.

  13. NewProt - a protein engineering portal.

    PubMed

    Schwarte, Andreas; Genz, Maika; Skalden, Lilly; Nobili, Alberto; Vickers, Clare; Melse, Okke; Kuipers, Remko; Joosten, Henk-Jan; Stourac, Jan; Bendl, Jaroslav; Black, Jon; Haase, Peter; Baakman, Coos; Damborsky, Jiri; Bornscheuer, Uwe; Vriend, Gert; Venselaar, Hanka

    2017-06-01

    The NewProt protein engineering portal is a one-stop-shop for in silico protein engineering. It gives access to a large number of servers that compute a wide variety of protein structure characteristics supporting work on the modification of proteins through the introduction of (multiple) point mutations. The results can be inspected through multiple visualizers. The HOPE software is included to indicate mutations with possible undesired side effects. The Hotspot Wizard software is embedded for the design of mutations that modify a proteins' activity, specificity, or stability. The NewProt portal is freely accessible at http://newprot.cmbi.umcn.nl/ and http://newprot.fluidops.net/. © The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.

  14. Sunshot Initiative High Penetration Solar Portal

    DOE Data Explorer

    The DOE SunShot Initiative is a collaborative national initiative to make solar energy cost-competitive with other forms of energy by the end of the decade. Reducing the installed cost of solar energy systems by about 75% will drive widespread large-scale adoption of this renewable energy and restore U.S. leadership in the global clean energy race. The High Penetration Solar Portal was created as a resource to aggregate the most relevant and timely information related to high penetration solar scenarios and integrating solar into the grid. The site is designed so that utilities, grant awardees, regulators, researchers, and other solar professionals can easily share data, case studies, lessons learned, and demonstration project findings. [from https://solarhighpen.energy.gov/about_the_high_penetration_solar_portal

  15. Phase contrast portal imaging using synchrotron radiation

    SciTech Connect

    Umetani, K.; Kondoh, T.

    2014-07-15

    Microbeam radiation therapy is an experimental form of radiation treatment with great potential to improve the treatment of many types of cancer. We applied a synchrotron radiation phase contrast technique to portal imaging to improve targeting accuracy for microbeam radiation therapy in experiments using small animals. An X-ray imaging detector was installed 6.0 m downstream from an object to produce a high-contrast edge enhancement effect in propagation-based phase contrast imaging. Images of a mouse head sample were obtained using therapeutic white synchrotron radiation with a mean beam energy of 130 keV. Compared to conventional portal images, remarkably clear images of bones surrounding the cerebrum were acquired in an air environment for positioning brain lesions with respect to the skull structure without confusion with overlapping surface structures.

  16. Culture differences in design of portal sites.

    PubMed

    Fang, Xiaowen; Rau, Pei-Luen Patrick

    2003-01-15

    Two experiments were carried out to examine the effects of cultural differences between the Chinese and the US people on the perceived usability and search performance of World Wide Web (WWW) portal sites. Chinese users in Taiwan and US users in Chicago were recruited to perform searching tasks on two versions of Yahoo! portal site: the standard Yahoo! and Yahoo! Chinese. The layout of Yahoo! Chinese is the same as the layout of Yahoo!, and categories on Yahoo! Chinese have been translated from its US counterpart. A special browser was programmed to record all the keystroke data and participants were asked to fill out a satisfaction questionnaire after finishing the tasks. Significant differences of satisfaction and steps to perform some tasks were found between the two groups. The experiment results also provided more detailed insights into the cultural differences between the Chinese and the US users.

  17. Phase contrast portal imaging using synchrotron radiation

    NASA Astrophysics Data System (ADS)

    Umetani, K.; Kondoh, T.

    2014-07-01

    Microbeam radiation therapy is an experimental form of radiation treatment with great potential to improve the treatment of many types of cancer. We applied a synchrotron radiation phase contrast technique to portal imaging to improve targeting accuracy for microbeam radiation therapy in experiments using small animals. An X-ray imaging detector was installed 6.0 m downstream from an object to produce a high-contrast edge enhancement effect in propagation-based phase contrast imaging. Images of a mouse head sample were obtained using therapeutic white synchrotron radiation with a mean beam energy of 130 keV. Compared to conventional portal images, remarkably clear images of bones surrounding the cerebrum were acquired in an air environment for positioning brain lesions with respect to the skull structure without confusion with overlapping surface structures.

  18. On flattening filter-free portal dosimetry.

    PubMed

    Pardo, Eduardo; Castro Novais, Juan; Molina López, María Yolanda; Ruiz Maqueda, Sheila

    2016-07-08

    Varian introduced (in 2010) the option of removing the flattening filter (FF) in their C-Arm linacs for intensity-modulated treatments. This mode, called flattening filter-free (FFF), offers the advantage of a greater dose rate. Varian's "Portal Dosimetry" is an electronic portal imager device (EPID)-based tool for IMRT verification. This tool lacks the capability of verifying flattening filter-free (FFF) modes due to saturation and lack of an image prediction algorithm. (Note: the latest versions of this software and EPID correct these issues.) The objective of the present study is to research the feasibility of said verifications (with the older versions of the software and EPID). By placing the EPID at a greater distance, the images can be acquired without saturation, yielding a linearity similar to the flattened mode. For the image prediction, a method was optimized based on the clinically used algorithm (analytical anisotropic algorithm (AAA)) over a homogeneous phantom. The depth inside the phantom and its electronic density were tailored. An application was developed to allow the conversion of a dose plane (in DICOM format) to Varian's custom format for Portal Dosimetry. The proposed method was used for the verification of test and clinical fields for the three qualities used in our institution for IMRT: 6X, 6FFF and 10FFF. The method developed yielded a positive verification (more than 95% of the points pass a 2%/2 mm gamma) for both the clinical and test fields. This method was also capable of "predicting" static and wedged fields. A workflow for the verification of FFF fields was developed. This method relies on the clinical algorithm used for dose calculation and is able to verify the FFF modes, as well as being useful for machine quality assurance. The procedure described does not require new hardware. This method could be used as a verification of Varian's Portal Dose Image Prediction.

  19. Thrombosis of the portal venous system.

    PubMed

    Sacerdoti, D; Serianni, G; Gaiani, S; Bolognesi, M; Bombonato, G; Gatta, A

    2007-03-01

    Portal vein thrombosis (PVT) is a rare cause of portal hypertension. Its diagnosis has been facilitated by improvements in imaging techniques, in particular Doppler sonography. The prevalence is about 1% in the general population, but much higher rates are observed in patients with hepatic cirrhosis (7%, range 0.6-17%), particularly those who also have hepatocellular carcinoma (HCC) (35%). The most common causes of PVT are myeloproliferative disorders, deficiencies of anticoagulant proteins, prothrombotic gene mutations, cirrhosis with portal hypertension, and HCC. Its development often requires the presence of two or more risk factors (local and/or systemic), e.g., a genetically determined thrombophilic state plus an infectious episode or abdominal surgery. It is clinically useful to distinguish between cirrhotic and noncirrhotic forms. Portal vein thrombosis is also traditionally classified as acute or chronic, but this distinction is often difficult. Color Doppler ultrasound is the first-line imaging study for diagnosis of PVT; magnetic resonance angiography and CT angiography are valid alternatives. The main complications are ischemic intestinal necrosis (in acute PVT) and esophageal varices (in chronic cases); the natural history of the latter differs depending on whether or not the thrombosis is associated with cirrhosis. The treatment of choice for PVT has never been adequately investigated. It is currently based on the use of anticoagulants associated, in some cases, with thrombolytics, but experience with the latter agents is too limited to draw any definite conclusions. In chronic thrombosis (even forms associated with cirrhosis), anticoagulant therapy is recommended and possibly, beta-blockers as well. Naturally, treatment of the underlying pathology is essential.

  20. Web portal on environmental sciences "ATMOS''

    NASA Astrophysics Data System (ADS)

    Gordov, E. P.; Lykosov, V. N.; Fazliev, A. Z.

    2006-06-01

    The developed under INTAS grant web portal ATMOS (http://atmos.iao.ru and http://atmos.scert.ru) makes available to the international research community, environmental managers, and the interested public, a bilingual information source for the domain of Atmospheric Physics and Chemistry, and the related application domain of air quality assessment and management. It offers access to integrated thematic information, experimental data, analytical tools and models, case studies, and related information and educational resources compiled, structured, and edited by the partners into a coherent and consistent thematic information resource. While offering the usual components of a thematic site such as link collections, user group registration, discussion forum, news section etc., the site is distinguished by its scientific information services and tools: on-line models and analytical tools, and data collections and case studies together with tutorial material. The portal is organized as a set of interrelated scientific sites, which addressed basic branches of Atmospheric Sciences and Climate Modeling as well as the applied domains of Air Quality Assessment and Management, Modeling, and Environmental Impact Assessment. Each scientific site is open for external access information-computational system realized by means of Internet technologies. The main basic science topics are devoted to Atmospheric Chemistry, Atmospheric Spectroscopy and Radiation, Atmospheric Aerosols, Atmospheric Dynamics and Atmospheric Models, including climate models. The portal ATMOS reflects current tendency of Environmental Sciences transformation into exact (quantitative) sciences and is quite effective example of modern Information Technologies and Environmental Sciences integration. It makes the portal both an auxiliary instrument to support interdisciplinary projects of regional environment and extensive educational resource in this important domain.

  1. Campus Portals: Supportive Mechanisms for University Communication, Collaboration, and Organizational Change.

    ERIC Educational Resources Information Center

    Eisler, David L.

    2001-01-01

    University portals provide a new computerized interface between colleges and constituent groups. This article discusses: campus portals and possible features they may contain, nine strategies for portal projects, collaborative mechanisms to develop and implement portal projects, criteria for determination of campus portal readiness, potential…

  2. Portal vein thrombosis related to Cassia angustifolia.

    PubMed

    Soyuncu, Secgin; Cete, Yildiray; Nokay, Ali E

    2008-09-01

    Cassia angustifolia (Senna), used as a laxative, is a plant from the Fabaceae family. It includes hydroxyanthracene glycosides, also known as Senna Sennoside. These glycosides stimulate the peristalsis of the colon and alter colonic absorption and secretion resulting in fluid accumulation and expulsion. In the literature, there are reports illustrating the hepatotoxic effects of Cassia angustifolia but there is no report of portal vein thrombosis caused by Cassia Angustifolia. A 42-year-old woman was admitted to the emergency department with a five-day history of worsening epigastric pain, anorexia, episodic vomiting, and intermittent fever. She reported that she had boiled dried senna leaves she had bought from herbalists and drank approximately 200 mL daily for two years. Color Doppler screening found an echogen thrombus obliterating portal vein bifurcation and the right branch. The lumen was obstructed at this level and there was no blood flow through it. Treatment with thrombolytics was unsuccessful. Severe hepatotoxicity senna use is unusual. The cause of senna-related hepatotoxicity is unclear but could be explained by the exposure of the liver to unusual amounts of toxic metabolites of anthraquinone glycosides. Chronic use of Cassia angustifolia may rarely be associated with portal vein thrombosis.

  3. Interventional Radiologic Treatment for Idiopathic Portal Hypertension

    SciTech Connect

    Hirota, Shozo; Ichikawa, Satoshi; Matsumoto, Shinichi; Motohara, Tomofumi; Fukuda, Tetsuya; Yoshikawa, Takeshi

    1999-07-15

    Purpose: To evaluate the usefulness of interventional radiological treatment for idiopathic portal hypertension. Methods: Between 1995 and 1998, we performed an interventional radiological treatment in five patients with idiopathic portal hypertension, four of whom had refused surgery and one of whom had undergone surgery. Three patients with gastroesophageal varices (GEV) were treated by partial splenic embolization (PSE), one patient with esophageal varices (EV) and massive ascites by transjugular intrahepatic portosytemic shunt (TIPS) and PSE, and one patient with GEV by percutaneous transhepatic obliteration (PTO). Midterm results were analyzed in terms of the effect on esophageal and/or gastric varices. Results: In one woman with severe GEV who underwent three sessions of PSE, there was endoscopic confirmation that the GEV had disappeared. In one man his EV shrunk markedly after two sessions of PSE. In two patients slight reduction of the EV was obtained with one application of PSE combined with endoscopic variceal ligation therapy. PTO for GV in one patient resulted in good control of the varices. All patients have survived for 16-42 months since the first interventional treatment, and varices are well controlled. Conclusion: Interventional radiological treatment is effective for patients with idiopathic portal hypertension, whether or not they have undergone surgery.

  4. Preduodenal portal vein in the adult.

    PubMed

    Papaziogas, T; Papaziogas, B; Paraskevas, G; Lazaridis, C; Patsas, A

    2000-09-01

    We present three cases of preduodenal portal vein in adult people, which were diagnosed in our department. All of them were identified during elective operation for cholelithiasis, caused some technical difficulties to the performance of the operation, but led to no major intraoperative or postoperative complications. None of them had any preoperative symptoms, which could be related to this anomaly. The preduodenal portal vein is a rare congenital anomaly, which is usually discovered in infants or children due to the obstruction of the duodenum. In adults, it is often asymptomatic, and is usually discovered as an accidental finding during laparotomy for other reason. The postcontrast CT can set the diagnosis, when this anomaly is suspected. Despite its rarity, this anomaly is of great surgical importance, because it can predispose to intraoperative complications including hemorrhage from the abnormal vein, or damage to the biliary tract or the distented duodenum. The anterior position of the portal vein results from the persistence of the ventral anastomosis between the two vitelline veins and the distal portion of the right vitelline vein, with subsequent atrophy of the cranial part of the left vitelline and dorsal anastomotic vein.

  5. The DIRAC Web Portal 2.0

    NASA Astrophysics Data System (ADS)

    Mathe, Z.; Casajus Ramo, A.; Lazovsky, N.; Stagni, F.

    2015-12-01

    For many years the DIRAC interware (Distributed Infrastructure with Remote Agent Control) has had a web interface, allowing the users to monitor DIRAC activities and also interact with the system. Since then many new web technologies have emerged, therefore a redesign and a new implementation of the DIRAC Web portal were necessary, taking into account the lessons learnt using the old portal. These new technologies allowed to build a more compact, robust and responsive web interface that enables users to have better control over the whole system while keeping a simple interface. The web framework provides a large set of “applications”, each of which can be used for interacting with various parts of the system. Communities can also create their own set of personalised web applications, and can easily extend already existing ones with a minimal effort. Each user can configure and personalise the view for each application and save it using the DIRAC User Profile service as RESTful state provider, instead of using cookies. The owner of a view can share it with other users or within a user community. Compatibility between different browsers is assured, as well as with mobile versions. In this paper, we present the new DIRAC Web framework as well as the LHCb extension of the DIRAC Web portal.

  6. Surgical management of portal cavernoma cholangiopathy.

    PubMed

    Varma, Vibha; Behera, Arunanshu; Kaman, Leileshwar; Chattopadhyay, Somnath; Nundy, Samiran

    2014-02-01

    The majority of patients with portal cavernoma cholangiopathy (PCC) are asymptomatic, however some (5-38%) present with obstructive jaundice, cholangitis, or even biliary pain due to bile duct stones which form as a result of stasis. Most patients with extrahepatic portal venous obstruction (EHPVO) present with variceal bleeding and hypersplenism and these are the usual indications for surgery. Those who present with PCC may also need decompression of their portosystemic system to reverse the biliary obstruction. It is important to realize that though endoscopic drainage has been proposed as a non-surgical approach to the management of PCC it is successful in only certain specific situations like those with bile duct calculi, cholangitis, etc. A small proportion of such patients will continue to have biliary obstruction and these patients are thought to have a mechanical ischemic stricture. These patients will require a second stage procedure in the form of a bilioenteric bypass to reverse the symptoms related to PCC. In the absence of a shuntable vein splenectomy and devascularization may resolve the PCC in a subset of patients by decreasing the portal pressure.

  7. [Portal hypertension. Evidence-based guide].

    PubMed

    Mercado, Miguel Angel; Orozco Zepeda, Héctor; Plata-Muñoz, Juan José

    2004-01-01

    Treatment of portal hypertension has evolved widely during the last decades. Advances in physiopathology have allowed better application of therapeutic options and also have permitted to know the natural history of varices and variceal bleeding, predicting which patients have a higher risk of bleeding. It also permits probability of designing patient treatment. According to liver function and subadjacent liver disease, it is possible to offer different alternatives within the three possible scenarios (primary prophylaxis, acute bleeding episode, and secondary prophylaxis). For primary prophylaxis, pharmacotherapy offers the best choice. Endoscopic banding is also growing in these scenarios and probably will be accepted in the near future. For the acute bleeding episode, endoscopic therapy (sclerosis and/or bands) and/or pharmacologic therapy (octreotide, terlipresin) represent best choice, considering TIPS as a rescue option. Surgery is not used routinely in this scenario in most centers. For secondary prophylaxis, pharmaco- and endoscopic therapy are first-line treatments, while TIPS and surgery as second-line treatments. TIPS is mainly used in patients on a waiting list for liver transplantation. Surgery offers good results for low-risk patients, with good liver function and with portal blood-flow preserving procedures (selective shunts, extensive devascularizations). Liver transplantation is recommended for patients with poor liver function because together with portal hypertension, it treats subadjacent liver disease.

  8. ENCODE data at the ENCODE portal

    PubMed Central

    Sloan, Cricket A.; Chan, Esther T.; Davidson, Jean M.; Malladi, Venkat S.; Strattan, J. Seth; Hitz, Benjamin C.; Gabdank, Idan; Narayanan, Aditi K.; Ho, Marcus; Lee, Brian T.; Rowe, Laurence D.; Dreszer, Timothy R.; Roe, Greg; Podduturi, Nikhil R.; Tanaka, Forrest; Hong, Eurie L.; Cherry, J. Michael

    2016-01-01

    The Encyclopedia of DNA Elements (ENCODE) Project is in its third phase of creating a comprehensive catalog of functional elements in the human genome. This phase of the project includes an expansion of assays that measure diverse RNA populations, identify proteins that interact with RNA and DNA, probe regions of DNA hypersensitivity, and measure levels of DNA methylation in a wide range of cell and tissue types to identify putative regulatory elements. To date, results for almost 5000 experiments have been released for use by the scientific community. These data are available for searching, visualization and download at the new ENCODE Portal (www.encodeproject.org). The revamped ENCODE Portal provides new ways to browse and search the ENCODE data based on the metadata that describe the assays as well as summaries of the assays that focus on data provenance. In addition, it is a flexible platform that allows integration of genomic data from multiple projects. The portal experience was designed to improve access to ENCODE data by relying on metadata that allow reusability and reproducibility of the experiments. PMID:26527727

  9. Salvianolic Acid B Reducing Portal Hypertension Depends on Macrophages in Isolated Portal Perfused Rat Livers with Chronic Hepatitis

    PubMed Central

    Zhao, Xin; Jia, Hongmei; Yang, Shijun; Liu, Yuetao; Deng, Bo; Xu, Xueyan; Zhang, Tao; Zhou, Hang; Zu, Chengzhe; Yin, He; Li, Ting; Song, Yijun; Wang, Yueqi; Li, Pengtao; Zou, Zhongmei; Cai, Dayong

    2012-01-01

    This study is aimed to investigate the effects of Sal B on portal hypertension (PH). PH with chronic hepatitis was induced by carbon tetrachloride (CCl4) in rats. The model was confirmed with elevated portal pressures and increased serum CD163 levels. The inducible nitric oxide synthase (iNOS) or heme oxygenase-1 (HO-1) in portal triads was assessed. The isolated portal perfused rat liver (IPPRL) was performed at d0, d28, d56 , and d84 in the progression of chronic hepatitis. After constricting with phenylephrine, the portal veins were relaxed with Sal B. The EC50 of Sal B for relaxing portal veins was −2.04 × 10−9, 7.28 × 10−11, 1.52 × 10−11, and 8.44 × 10−11 mol/L at d0, d28, d56, and d84, respectively. More macrophages infiltrated in portal triads and expressed more iNOS or HO-1 as PH advanced. The areas under the curve (AUCs) of Sal B for reducing PH were positively correlated with the levels of iNOS or HO-1 in portal triads, and so did with serum CD163 levels. Sal B reduces PH in IPPRL with chronic hepatitis, via promoting portal relaxation due to macrophage-originated NO or CO in portal triads, partly at least. PMID:23118797

  10. Development of a trace explosives detection portal for personnel screening

    SciTech Connect

    Parmeter, J.E.; Linker, K.L.; Rhykerd, C.L. Jr.; Bouchier, F.A.; Hannum, D.W.

    1998-08-01

    The authors discuss the development, design, and operation of a walk-through trace detection portal designed to screen personnel for explosives. Developed at Sandia National Laboratories (SNL) with primary funding from the Federal Aviation Administration (FAA) and additional support from the Department of Energy office of Safeguards and Security, this portal is intended primarily for use in airport terminals and in other localities where a very high throughput of pedestrian traffic is combined with stringent security requirements. The portal is capable of detecting both vapor and particulate contamination, with the collection of explosive material being based upon the entrainment of that material in air flows over the body of the person being screened. This portal is capable of detecting most types of common high explosives of interest to the FAA. The authors discuss the results of field testing of the portal in the Albuquerque International Airport in September, 1997 and more recent steps towards commercialization of the portal.

  11. Disastrous Portal Vein Embolization Turned into a Successful Intervention

    SciTech Connect

    Dobrocky, Tomas; Kettenbach, Joachim; Lopez-Benitez, Ruben Kara, Levent

    2015-10-15

    Portal vein embolization (PVE) may be performed before hemihepatectomy to increase the volume of future liver remnant (FLR) and to reduce the risk of postoperative liver insufficiency. We report the case of a 71-year-old patient with hilar cholangiocarcinoma undergoing PVE with access from the right portal vein using a mixture of n-butyl-2-cyanoacrylate and ethiodized oil. During the procedure, nontarget embolization of the left portal vein occurred. An aspiration maneuver of the polymerized plug failed; however, the embolus obstructing portal venous flow in the FLR was successfully relocated into the right portal vein while carefully bypassing the plug with a balloon catheter, inflating the balloon, and pulling the plug into the main right portal vein.

  12. EMODnet Physical Parameters (EMODNet PP) Portal

    NASA Astrophysics Data System (ADS)

    Novellino, A.; Schaap, D.; Manzella, G. M. R.; Pouliquen, S.; Gorringe, P.

    2012-04-01

    In December 2007 the European Parliament and Council adopted a common text for the Marine Strategy Framework Directive which aims to achieve environmentally healthy marine waters by 2020. This Directive includes an initiative for an overarching European Marine Observation and Data Network (EMODNet). During the one-year consultation phase that followed the release of the EU Green Paper on a Future Maritime Policy for the European Union, stakeholders gave an overwhelming positive response. Facilitating access to high quality marine data will resolve difficulties and stimulate an expansion of value-added public and commercial services, lay the foundations for sound governance and reduce uncertainties on human impact on the planet as well as of forecasts relating to the future state of the marine environment. Better and linked marine data will have an immediate impact on the planning of environmental policy and mitigation measures, and will also facilitate impact assessments and scientific work. The overall objectives of the EMODnet Physical Parameters (EMODNet PP) preparatory action is to provide access to archived and near real-time data on physical conditions in Europe's seas and oceans by means of a dedicated Pilot Portal and to determine how well the data meet the needs of users from industry, public authorities and scientists. The latter implicates that it is also an objective to identify data gaps and arguments why these gaps should be filled in future monitoring. This project will contribute towards the definition of an operational European Marine Observation and Data Network (EMODnet). This is done done by: 1. providing through a portal: a. access to marine data from measurement stations and ferryboxes. Both near real-time and archived data of time series are to be made available. b. metadata for these data sets using EMODnet/INSPIRE standards. c. metadata maps and overviews for whole sea-basins showing the availability of data and monitoring intensity of that

  13. Cosmogenic Effects in the Portales Valley Meteorite

    NASA Astrophysics Data System (ADS)

    Bonino, G.; Cini Castagnoli, G.; Taricco, C.; Bhandari, N.; Suthar, K. M.; Killgore, M.

    1999-09-01

    The Portales Valley (H6) meteorite shower fell on 13 June 1998 near the town of Portales, New Mexico. About 50 fragments, ranging between 12 g to 34 kg, covered a strew field of about 10 km x 2 km. The different fragments consist of large silicate-rich regions crosscut by unusual thick veins of metallic Fe-Ni of different sizes and abundances. Galactic cosmic ray (GCR) particles interact with meteoroids in the interplanetary space, thereby producing a large variety of both radioactive and stable nuclides and radiation damage in minerals (tracks) produced by heavy nuclei. As Portales Valley is a large shower, various fragments located at different depth within the meteoroid provide an opportunity to study cosmogenic effects also as a function of depth and for different target element abundance. Measured depth profiles are available only for few meteorites. Furthermore a fresh fall, like Portales Valley, allows to extend this analysis to several nuclides. We measured the gamma-activity in a fragment weighing about 600 g shortly after fall. Twelve cosmogenic radioisotopes with half-lives ranging between 16.1 days to 7.2 x 10(5) years have been measured with high precision. Measurements in other 3 fragments were done successively. These measurements were performed in the underground Laboratory in Torino by a highly sensitive and selective Ge-NaI(Tl) gamma-spectrometer. The Na-22(T_1/2=2.6y)/Al-26(T_1/2=7.2 10(5y) ) ratio, which is nearly independent of meteoroid composition and shielding, gives about the same value of 1.5 for the 4 fragments of Portales Valley , very similar to those of Fermo and Torino (measured in our Laboratory) which fell in 1996 and 1988 respectively, near to the minima (GCR maxima) of the Schwabe cycle of solar activity. In addition we will present results of the nuclear tracks density measureded at PRL and of the chemical analysis and we will discuss these results in relation to the different cosmogenic effects in a meteoroid. Acknowledgments

  14. A Climate Information Portal for Copernicus: a central portal for European climate services?

    NASA Astrophysics Data System (ADS)

    Juckes, Martin; Swart, Rob; Thysse, Peter; Som de Cerff, Wim; Groot, Annemarie; Bennett, Victoria; Costa, Luis; Lückenkötter, Johannes; Callaghan, Sarah

    2015-04-01

    The FP7 project "Climate Information Portal for Copernicus" (CLIPC) is developing a demonstration portal for the Copernicus Climate Change Service (C3S). This project is one of a suite of FP7 research activities which are administratively independent of Copernicus, focussed on creating the technical and scientific building blocks needed for the service. It is to be expected that at EGU 2015 there will be many presentations describing portals delivering new and innovative ranges of services. It would be unwise to seek to replace all this creative activity with a single portal -- instead CLIPC is designing a portal to make distributed resources more accessible through flexible discovery systems. CLIPC needs to deliver more than a directory of resources: resources need to be presented in common protocols so that users can access multiple datasets. More information about the project objectives is available at www.clipc.eu. The gulf between the climate science communities and the end user communities is a central challenge being addressed in the project. It is important to understand that there is significant diversity and multiple communication barriers within these two sets of communities as well as between them. The CLIPC services must presentation will provide a review of progress towards this ambitious goal, through a discussion of user requirements activities, an overview of the proposed architecture, work on assessing and adjusting model biasses, and a discussion of the climate impact indicators which will be provided through the portal. When looking at the usability of data for the various users, CLIPC will implement a set of services functioning as a "knowledge base" supplying information to users about the data, including definitions of terminology used, quality of datasets, versioning, and user annotations.

  15. Preduodenal portal vein: a cause of prenatally diagnosed duodenal obstruction.

    PubMed

    Choi, S O; Park, W H

    1995-10-01

    Preduodenal portal vein is a rare congenital anomaly that causes high intestinal obstruction. The authors report on a newborn who was diagnosed as having duodenal obstruction at 30 weeks' gestation. During surgery the patient was found to have duodenal obstruction caused by a preduodenal portal vein. Malrotation was an associated finding. Treatment consisted of Ladd's procedure and a diamond-shaped duodenoduodenostomy performed anterior to the portal vein.

  16. ACTRIS Data Centre: An atmospheric data portal

    NASA Astrophysics Data System (ADS)

    Myhre, C. Lund; Fahre Vik, A.; Logna, R.; Torseth, K.; Linné, H.; O'Connor, E.

    2012-04-01

    ACTRIS (Aerosols, Clouds, and Trace gases Research InfraStructure Network) is a European Project aiming at integrating European ground-based stations equipped with advanced instrumentation for studying aerosols, clouds, and short-lived gas-phase species. The ACTRIS activities result in improved atmospheric measurements data made at more than 60 European sites, from numerous instruments and includes variables measured by ground based in situ and remote sensing technologies. Core variables are in situ aerosol optical, physical and chemical properties, short-lived trace gases (volatile organic carbon and nitrogen oxides), aerosol scattering and extinction profiles, and cloud properties. The ACTRIS data centre (ACTRIS DC) is giving free and open access to all data resulting from the activities of the infrastructure network, complemented with data from other relevant networks and data bases. The overall goal is to facilitate scientists and other user groups access to atmospheric observational data, and to provide mature products for analysis and interpretation of atmospheric composition change. The ACTRIS DC aims at substantially increasing the number of high-quality data by providing long-term observational data relevant to climate and air quality research produced with standardized or comparable procedures throughout the network. The backbone of the ACTRIS DC is the three core data bases: - EARLINET Data Base hosting aerosol lidar data from more than 30 European sites - EBAS hosting ground based atmospheric in situ data from more than 1000 sites globally - Cloudnet hosting remote sensing cloud data and products from 5 European sites Furthermore, a joint portal is developed combining information from various data sources to gain new information not presently available from standalone databases or networks. The data centre will provide tools and services to facilitate the use of measurements for broad user communities. Higher level and integrated products will be

  17. Wall shear stress in portal vein of cirrhotic patients with portal hypertension

    PubMed Central

    Wei, Wei; Pu, Yan-Song; Wang, Xin-Kai; Jiang, An; Zhou, Rui; Li, Yu; Zhang, Qiu-Juan; Wei, Ya-Juan; Chen, Bin; Li, Zong-Fang

    2017-01-01

    AIM To investigate wall shear stress (WSS) magnitude and distribution in cirrhotic patients with portal hypertension using computational fluid dynamics. METHODS Idealized portal vein (PV) system models were reconstructed with different angles of the PV-splenic vein (SV) and superior mesenteric vein (SMV)-SV. Patient-specific models were created according to enhanced computed tomography images. WSS was simulated by using a finite-element analyzer, regarding the blood as a Newtonian fluid and the vessel as a rigid wall. Analysis was carried out to compare the WSS in the portal hypertension group with that in healthy controls. RESULTS For the idealized models, WSS in the portal hypertension group (0-10 dyn/cm2) was significantly lower than that in the healthy controls (10-20 dyn/cm2), and low WSS area (0-1 dyn/cm2) only occurred in the left wall of the PV in the portal hypertension group. Different angles of PV-SV and SMV-SV had different effects on the magnitude and distribution of WSS, and low WSS area often occurred in smaller PV-SV angle and larger SMV-SV angle. In the patient-specific models, WSS in the cirrhotic patients with portal hypertension (10.13 ± 1.34 dyn/cm2) was also significantly lower than that in the healthy controls (P < 0.05). Low WSS area often occurred in the junction area of SV and SMV into the PV, in the area of the division of PV into left and right PV, and in the outer wall of the curving SV in the control group. In the cirrhotic patients with portal hypertension, the low WSS area extended to wider levels and the magnitude of WSS reached lower levels, thereby being more prone to disturbed flow occurrence. CONCLUSION Cirrhotic patients with portal hypertension show dramatic hemodynamic changes with lower WSS and greater potential for disturbed flow, representing a possible causative factor of PV thrombosis. PMID:28566887

  18. View up from portal level inside of pyramidal structure toward ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View up from portal level inside of pyramidal structure toward pintle. - Naval Base Philadelphia-Philadelphia Naval Shipyard, 350-Ton Hammerhead Crane, League Island, Philadelphia, Philadelphia County, PA

  19. Prepancreatic postduodenal portal vein: report of a case.

    PubMed

    Inoue, Masafumi; Taenaka, Naoyuki; Nishimura, Shigehiko; Kawamura, Tetsuo; Aki, Toshihiko; Yamaki, Kenichiro; Enomoto, Hitoshi; Kosaka, Kinshi; Yoshikawa, Kazuhiko

    2003-01-01

    We report an unusual case of a prepancreatic postduodenal portal vein (PPPV), incidentally discovered during total gastrectomy. If it had not been noticed, this portal vein might have been ligated and divided with disastrous consequences. This anomaly was not diagnosed preoperatively, but it could have been. Although embryological anomalies of the portal venous system, such as PPPV and preduodenal portal vein, are rarely encountered in abdominal surgery, surgeons must be aware of their possibility and be able to recognize them to avoid major intraoperative injury.

  20. View of the Warrington Avenue Bridge portal, inbound from Pittsburgh ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of the Warrington Avenue Bridge portal, inbound from Pittsburgh - Pittsburgh & Castle Shannon Railroad, Warrington Avenue Bridge, Overbrook Trolley Line, Crossing Warrington Avenue, Pittsburgh, Allegheny County, PA

  1. View of the Warrington Avenue Bridge portal, outbound from Pittsburgh ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of the Warrington Avenue Bridge portal, outbound from Pittsburgh - Pittsburgh & Castle Shannon Railroad, Warrington Avenue Bridge, Overbrook Trolley Line, Crossing Warrington Avenue, Pittsburgh, Allegheny County, PA

  2. Quality Control of Portal Imaging with PTW EPID QC PHANTOM.

    PubMed

    Pesznyák, Csilla; Fekete, Gábor; Mózes, Arpád; Kiss, Balázs; Király, Réka; Polgár, István; Zaránd, Pál; Mayer, Arpád

    2009-01-01

    Quality assurance (QA) and quality control (QC) of different electronic portal imaging devices (EPID) and portal images with the PTW EPID QC PHANTOM. Characteristic properties of images of different file formats were measured on Siemens OptiVue500aSi, Siemens BeamView Plus, Elekta iView, and Varian PortalVision and analyzed with the epidSoft 2.0 program in four radiation therapy centers. The portal images were taken with Kodak X-OMAT V and the Kodak Portal Localisation ReadyPack films and evaluated with the same program. The optimal exposition both for EPIDs and portal films of different kind was determined. For double exposition, the 2+1 MU values can be recommended in the case of Siemens OptiVue500aSi Elekta iView and Kodak Portal Localisation ReadyPack films, while for Siemens BeamView Plus, Varian PortalVision and Kodak X-OMAT V film 7+7 MU is recommended. The PTW EPID QC PHANTOM can be used not only for amorphous silicon EPIDs but also for images taken with a video-based system or by using an ionization chamber matrix or for portal film. For analysis of QC tests, a standardized format (used at the acceptance test) should be applied, as the results are dependent on the file format used.

  3. Kansas: Early Head Start Initiative

    ERIC Educational Resources Information Center

    Center for Law and Social Policy, Inc. (CLASP), 2012

    2012-01-01

    Kansas Early Head Start (KEHS) provides comprehensive services following federal Head Start Program Performance Standards for pregnant women and eligible families with children from birth to age 4. KEHS was implemented in 1998 using Child Care and Development Block Grant (CCDBG) quality set-aside dollars augmented by a transfer of federal…

  4. Maine: Early Head Start Initiatives

    ERIC Educational Resources Information Center

    Center for Law and Social Policy, Inc. (CLASP), 2012

    2012-01-01

    Maine has two initiatives that build on Early Head Start (EHS). The first initiative, Fund for a Healthy Maine, has since 2001 provided tobacco settlement money to existing Head Start and EHS programs to expand the number of children who receive full-day, full-year services. Local programs have the option of using these funds for EHS, depending on…

  5. Head Start Nutrition Education Curriculum.

    ERIC Educational Resources Information Center

    Montclair State Coll., Upper Montclair, NJ.

    This multidisciplinary preschool nutrition education curriculum was written for use in the instruction of 3- to 5-year-olds in the National Head Start program. Introductory notes on cooking experiences for Head Start children and suggested menus for young children are followed by nine units. The curriculum incorporates a variety of teaching…

  6. State Funding of Head Start.

    ERIC Educational Resources Information Center

    Idaho State Legislature, Boise. Office of Performance Evaluation.

    This background paper details Head Start, a federally funded program serving preschool age children from low-income families, and focuses on the program's effectiveness and the adequacy of historic federal funding levels. The paper provides an overview of the Head Start Program, describes federal requirements for local programs, and describes Head…

  7. Instructions for Uploading Data to the Assay Portal - Instructions for Uploading Data to the Assay Portal

    Cancer.gov

    This document provides instructions for configuring and uploading data files to the CPTAC Assay Portal. It is divided into sections, with an overview checklist provided at the end. If help is needed at any stage of the process, please use the support page: https://assays.cancer.gov/support/

  8. Novel Rat Model of Repetitive Portal Venous Embolization Mimicking Human Non-Cirrhotic Idiopathic Portal Hypertension

    PubMed Central

    Klein, Sabine; Hinüber, Christian; Hittatiya, Kanishka; Schierwagen, Robert; Uschner, Frank Erhard; Strassburg, Christian P.; Fischer, Hans-Peter; Spengler, Ulrich; Trebicka, Jonel

    2016-01-01

    Background Non-cirrhotic idiopathic portal hypertension (NCIPH) is characterized by splenomegaly, anemia and portal hypertension, while liver function is preserved. However, no animal models have been established yet. This study assessed a rat model of NCIPH and characterized the hemodynamics, and compared it to human NCIPH. Methods Portal pressure (PP) was measured invasively and coloured microspheres were injected in the ileocecal vein in rats. This procedure was performed weekly for 3 weeks (weekly embolization). Rats without and with single embolization served as controls. After four weeks (one week after last embolization), hemodynamics were investigated, hepatic fibrosis and accumulation of myofibroblasts were analysed. General characteristics, laboratory analyses and liver histology were collected in patients with NCIPH. Results Weekly embolization induced a hyperdynamic circulation, with increased PP. The mesenteric flow and hepatic hydroxyproline content was significantly higher in weekly embolized compared to single embolized rats (mesenteric flow +54.1%, hydroxyproline +41.7%). Mesenteric blood flow and shunt volumes increased, whereas splanchnic vascular resistance was decreased in the weekly embolization group. Fibrotic markers αSMA and Desmin were upregulated in weekly embolized rats. Discussion This study establishes a model using repetitive embolization via portal veins, comparable with human NCIPH and may serve to test new therapies. PMID:27589391

  9. Taking a traditional web site to patient portal technology.

    PubMed

    Labow, Kimberly

    2010-01-01

    In this era of consumer-driven healthcare, consumers (your current and potential patients) seek healthcare information on the Internet. If your practice doesn't have a Web site, or has one that's static and uninformative, you won't be found, and the patient will move on to the next practice Web site. Why? Because only the most graphically appealing, informative, and patient-centered Web sites will drive patients to your practice. Patients are demanding improved communication with their physician. A practice Web site is a start, but the adoption of a fully functional, interactive Web site with patient portal solutions will not only improve patient-to-provider relationships but will also give the patient access to your practice from anywhere, at any time of the day. Furthermore, these solutions can help practices increase efficiencies and revenue, while reducing operating costs. With the American Recovery and Reinvestment Act of 2009 and other incentives for healthcare information technology adoption, the time is right for your practice to consider implementing technology that will bring considerable value to your practice and also increase patient satisfaction.

  10. Open source portal to distributed image repositories

    NASA Astrophysics Data System (ADS)

    Tao, Wenchao; Ratib, Osman M.; Kho, Hwa; Hsu, Yung-Chao; Wang, Cun; Lee, Cason; McCoy, J. M.

    2004-04-01

    In large institution PACS, patient data may often reside in multiple separate systems. While most systems tend to be DICOM compliant, none of them offer the flexibility of seamless integration of multiple DICOM sources through a single access point. We developed a generic portal system with a web-based interactive front-end as well as an application programming interface (API) that allows both web users and client applications to query and retrieve image data from multiple DICOM sources. A set of software tools was developed to allow accessing several DICOM archives through a single point of access. An interactive web-based front-end allows user to search image data seamlessly from the different archives and display the results or route the image data to another DICOM compliant destination. An XML-based API allows other software programs to easily benefit from this portal to query and retrieve image data as well. Various techniques are employed to minimize the performance overhead inherent in the DICOM. The system is integrated with a hospital-wide HIPAA-compliant authentication and auditing service that provides centralized management of access to patient medical records. The system is provided under open source free licensing and developed using open-source components (Apache Tomcat for web server, MySQL for database, OJB for object/relational data mapping etc.). The portal paradigm offers a convenient and effective solution for accessing multiple image data sources in a given healthcare enterprise and can easily be extended to multi-institution through appropriate security and encryption mechanisms.

  11. Preduodenal portal vein in the adult.

    PubMed

    Ooshima, I; Maruyama, T; Ootsuki, K; Ozaki, M

    1998-01-01

    Preduodenal portal vein (PDPV) is a rare developmental anomaly. We recently encountered this anomaly in a 73-year-old woman who had gastric cancer and colonic cancer with liver metastasis. The PDPV was diagnosed preoperatively by computed tomography and angiography. To the best of our knowledge, there are only 19 adult cases reported in the world literature, with this additional case being reported here. In infants the anomaly has often been associated with duodenal obstruction, but in adults it is often symptomless. We discuss the disease process, embryology, diagnosis, association with other anomalies, and surgical treatment.

  12. The NOAO NVO Portal: Overall Design & Implementation

    NASA Astrophysics Data System (ADS)

    Fuentes, E.; Miller, C. J.; Gasson, D.

    2007-10-01

    We present an overview and design of the NOAO National Virtual Observatory (NVO) Portal. This is a web application providing one-stop discovery, analysis, and access to VO-compliant imaging data and services. It strictly follows the Model-View-Controller (MVC) design pattern and relies heavily on Asynchronous Javascript And XML (AJAX) in the browser. Because of the heavy use of AJAX, the relatively simple database schemas, and, most importantly, the rapid development/iteration schedule, Ruby-on-Rails (RoR) was chosen as the implementation language and PostgreSQL as the database engine.

  13. A portal for visualizing grid usage.

    SciTech Connect

    von Laszewski, G.; DiCarlo, J.; Allcock, B.; Mathematics and Computer Science; Univ. of Chicago

    2007-08-25

    We introduce a framework for measuring the use of Grid services and exposing simple summary data to an authorized set of Grid users through a JSR168-enabled portal. The sensor framework has been integrated into the Globus Toolkit and allows Grid administrators to have access to a mechanism helping with report and usage statistics. Although the original focus was the reporting of actions in relationship to GridFTP services, the usage service has been expanded to report also on the use of other Grid services.

  14. Hydrazine engine start system air start performance and controls sizing

    SciTech Connect

    Johnson, A.T.

    1992-01-01

    Hydrazine has been used as an energy source in many applications to fuel in-flight main engine starting. In a current application, an existing hydrazine engine start system (ESS) design was adapted to meet new fuel control requirements. This paper presents a brief system description, historical context, and the motivating factors for the hydrazine controls changes and three case studies of controls design and analysis from the ESS program. 4 refs.

  15. Palliative Portal Vein Stent Placement in Malignant and Symptomatic Extrinsic Portal Vein Stenosis or Occlusion

    SciTech Connect

    Novellas, Sebastien; Denys, Alban Bize, Pierre; Brunner, Philippe; Motamedi, Jean Paul; Gugenheim, Jean; Caroli, Francois-Xavier; Chevallier, Patrick

    2009-05-15

    This article evaluates the results of portal vein (PV) stent placement in patients with malignant extrinsic lesions stenosing or obstructing the PV and causing symptomatic PV hypertension (PVHT). Fourteen patients with bile duct cancer (n = 7), pancreatic adenocarcinoma (n = 4), or another cancer (n = 3) underwent percutaneous transhepatic portal venous stent placement because of gastroesophageal or jejunal varices (n = 9), ascites (n = 7), and/or thrombocytopenia (n = 2). Concurrent tumoral obstruction of the main bile duct was treated via the transhepatic route in the same session in four patients. Changes in portal venous pressure, complications, stent patency, and survival were evaluated. Mean {+-} standard deviation (SD) gradient of portal venous pressure decreased significantly immediately after stent placement from 11.2 mmHg {+-} 4.6 to 1.1 mmHg {+-} 1.0 (P < 0.00001). Three patients had minor complications, and one developed a liver abscess. During a mean {+-} SD follow-up of 134.4 {+-} 123.3 days, portal stents remained patent in 11 patients (78.6%); stent occlusion occurred in 3 patients, 2 of whom had undergone previous major hepatectomy. After stent placement, PVHT symptoms were relieved in four (57.1%) of seven patients who died (mean survival, 97 {+-} 71.2 days), and relieved in six (85.7%) of seven patients still alive at the end of follow-up (mean follow-up, 171.7 {+-} 153.5 days). Stent placement in the PV is feasible and relatively safe. It helped to relieve PVHT symptoms in a single session.

  16. The START III bargaining space

    SciTech Connect

    Karas, T.H.

    1998-08-01

    The declining state of the Russian military and precarious Russian economic condition will give the US considerable advantages at the START III bargaining table. Taking the US-RF asymmetries into account, this paper discusses a menu of START III measures the US could ask for, and measures it could offer in return, in attempting to negotiate an equitable treaty. Measures the US might seek in a START III treaty include: further reductions in deployed strategic nuclear warheads, irreversibility of reductions through warhead dismantlement; beginning to bring theater nuclear weapons under mutual control, and increased transparency into the Russian nuclear weapons complex. The US may, however, wish to apply its bargaining advantages to attempting to achieve the first steps toward two long-range goals that would enhance US security: bringing theater nuclear weapons into the US-RF arms control arena, and increasing transparency into the Russian nuclear weapons complex. In exchange for measures relating to these objectives, the US might consider offering to Russia: Further strategic weapons reductions approaching levels at which the Russians believe they could maintain a degree of parity with the US; Measures to decrease the large disparities in potential deliver-system uploading capabilities that appear likely under current START II/START III scenarios; and Financial assistance in achieving START II/START III reductions as rapidly as is technically possible.

  17. Portal vein stent placement for the treatment of postoperative portal vein stenosis: long-term success and factor associated with stent failure.

    PubMed

    Kato, Atsushi; Shimizu, Hiroaki; Ohtsuka, Masayuki; Yoshitomi, Hideyuki; Furukawa, Katsunori; Miyazaki, Masaru

    2017-02-01

    Portal vein stenosis develops due to different causes including postoperative inflammation and oncological processes. However, limited effective therapy is available for portal vein stenosis. The objectives of this study were to evaluate the efficacy of a portal vein stent for portal vein stenosis after hepatobiliary pancreatic surgery and to determine the factors associated with stent patency. From December 2003 to December 2015, portal vein stents were implanted in 29 patients who had portal vein stenosis after hepatobiliary pancreatic surgery. We conducted a retrospective analysis to evaluate the efficacy and safety of portal vein stent placement. Twelve clinical variables were analyzed for their role in stent patency. The symptoms before portal vein stent placements included nine patients with hepatic encephalopathy, six patients with gastrointestinal bleeding, four patients with ascites, and four patients with hyperbilirubinemia. Portal vein thrombosis due to postoperative portal stenosis was found in four patients. Portal vein stent were successfully implanted without any major complications. Of the 21 patients with symptoms, 17 showed improvement, and stent patency was maintained in 22 (76%) patients. The presence of a collateral vein is the only variable related to the development of an occlusion after portal stenting. Portal vein stent were implanted safely and had good long-term patency. This procedure is useful to relieve portal hypertension-related symptoms and to improve the quality of life. Our data strongly suggest that embolization to block blood flow in a collateral vein during portal vein stent placement will improve the patency of the stent.

  18. Constriction rate variation produced by partial ligation of the portal vein at pre-hepatic portal hypertension induced in rats

    PubMed Central

    RODRIGUES, Daren Athiê Boy; da SILVA, Aline Riquena; SERIGIOLLE, Leonardo Carvalho; FIDALGO, Ramiro de Sousa; FAVERO, Sergio San Gregorio; LEME, Pedro Luiz Squilacci

    2014-01-01

    Background Partial portal vein ligation causes an increase in portal pressure that remains stable even after the appearance of collateral circulation, with functional adaptation to prolonged decrease in portal blood flow. Aim To assess whether different constriction rates produced by partial ligation of the vein interfere with the results of this experimental model in rats. Methods Three groups of five rats each were used; in group 1 (sham-operated), dissection and measurement of portal vein diameters were performed. Portal hypertension was induced by partial portal vein ligation, reducing its size to 0.9 mm in the remaining 10 animals, regardless of the initial diameter of the veins. Five animals with portal hypertension (group 2) underwent reoperation after 15 days and the rats in group 3 after 30 days. The calculation of the constriction rate was performed using a specific mathematical formula (1 - π r 2 / π R2) x 100% and the statistical analysis with the Student t test. Results The initial diameter of the animal's portal vein was 2.06 mm, with an average constriction rate of the 55.88%; although the diameter of the veins and the constriction rate in group 2 were lower than in group 3 (2.06 mm - 55,25% and 2.08 mm - 56.51%, respectively), portal hypertension was induced in all rats and no significant macroscopic differences were found between the animals that were reoperated after 15 days and after 30 days respectively, being the shorter period considered enough for the evaluation. Comparing the initial diameter of the vein and the rate of constriction performed in groups 2 and 3, no statistic significance was found (p>0.05). Conclusion Pre-hepatic portal hypertension in rat can be induced by the reduction of the portal vein diameter to 0.9 mm, regardless the initial diameter of the vein and the vessel constriction rate. PMID:25626939

  19. Trans-4 Portal as a New Portal for Accessing the Lunate in Wrist Arthroscopy: a Cadaveric Study

    PubMed Central

    Shahryar-Kamrani, Reza; Saremi, Hossein; Oryadi-Zanjani, Leila; Nabian, Mohammad Hossein; Amoozadeh, Azita; Moradi, Amir Hossein

    2016-01-01

    Background Evolving wrist arthroscopy requires creating new portals, and creating portals reciprocally leads to increased indications for arthroscopic wrist procedures. To facilitate access to the lunate bone and fossa for new arthroscopic procedures, a new portal was used. This is a cadaveric study of this portal. Objectives In this cadaveric study, we evaluated a portal in wrist arthroscopy for procedures involving the lunate bone and lunate fossa. Materials and Methods Seventeen wrists from 10 fresh cadavers were included in this study. After diagnostic arthroscopy, a portal (Trans-4) was made through the fourth extensor compartment, exactly along the lunate’s long axis under direct visualization from the 3-4 portal. Strand retractors were used to protect the extensor tendons and posterior capsule. Lunate bone core decompression and osteoscopy were done through the portal. At the end of the procedure, the position of the decompression hole in the lunate and any possible injury to the extensor tendons, distal radius cartilage, lunate cartilage, and perilunate ligaments were investigated. Results Lunate bone decompression was performed successfully in all cases using the trans-4 portal. In 15 wrists, the lunate hole was located in the middle third. In the other two wrists, it was located slightly radial in one case and slightly on the ulnar side in the other case. There was no cortical penetration during decompression, and no extensor tendon, superficial nerve branches, or peri-lunate ligament injuries were observed. Conclusions The trans-4 portal could be a safe working portal in wrist arthroscopy that enables access to the lunate bone and lunate fossa. PMID:27703801

  20. Teachers' Acceptance and Use of an Educational Portal

    ERIC Educational Resources Information Center

    Pynoo, Bram; Tondeur, Jo; van Braak, Johan; Duyck, Wouter; Sijnave, Bart; Duyck, Philippe

    2012-01-01

    In this study, teachers' acceptance and use of an educational portal is assessed based on data from two sources: usage data (number of logins, downloads, uploads, reactions and pages viewed) and an online acceptance questionnaire. The usage data is extracted on two occasions from the portal's database: at survey completion (T1) and twenty-two…

  1. Health Literacy, Education Levels, and Patient Portal Usage During Hospitalizations

    PubMed Central

    Davis, Sharon E.; Osborn, Chandra Y.; Kripalani, Sunil; Goggins, Kathryn M.; Jackson, Gretchen Purcell

    2015-01-01

    Patient portal adoption has rapidly increased, and portal usage has been associated with patients’ sociodemographics, health literacy, and education. Research on patient portals has primarily focused on the outpatient setting. We explored whether health literacy and education were associated with portal usage in an inpatient population. Among 60,159 admissions in 2012–2013, 23.3% of patients reported limited health literacy; 50.4% reported some post-secondary education; 34.4% were registered for the portal; and 23.4% of registered patients used the portal during hospitalization. Probability of registration and inpatient portal use increased with educational attainment. Health literacy was associated with registration but not inpatient use. Among admissions with inpatient use, educational attainment was associated with viewing health record data, and health literacy was associated use of appointment and health education tools. The inpatient setting may provide an opportunity to overcome barriers to patient portal adoption and reduce disparities in use of health information technologies. PMID:26958286

  2. Portal: Your Door to World Languages and Cultures

    ERIC Educational Resources Information Center

    Elliott, Don; Lawton, Rachele

    2009-01-01

    Portal: Your Door to World Languages and Cultures was a series of public cultural events, in a variety of formats, created through a new partnership between the credit and continuing education (noncredit) foreign language programs at the Community College of Baltimore County (CCBC). Portal was designed to cultivate interest in foreign languages…

  3. Continued Use of a Chinese Online Portal: An Empirical Study

    ERIC Educational Resources Information Center

    Shih, Hung-Pin

    2008-01-01

    The evolution of the internet has made online portals a popular means of surfing the internet. In internet commerce, understanding the post-adoption behaviour of users of online portals can help enterprises to attract new users and retain existing customers. For predicting continued use intentions, this empirical study focused on applying and…

  4. MedEdPORTAL: Educational Scholarship for Teaching

    ERIC Educational Resources Information Center

    Reynolds, Robby J.; Candler, Christopher S.

    2008-01-01

    MedEdPORTAL is an online publication service provided at no charge by the Association of American Medical Colleges (AAMC). The intent is to promote collaboration and educational scholarship by helping educators publish and share educational resources. With MedEdPORTAL, users can quickly locate high-quality, peer-reviewed teaching materials in both…

  5. Connections: A Comprehensive Student Portal. Concept Paper and Proposal.

    ERIC Educational Resources Information Center

    Harr, Gary Lynn

    A student Web portal is a personalized, student-centric view of College Web resources. The "Artemis" system at Florida Community College at Jacksonville (FCCJ), represents movement toward realization of the efficiencies and student service possibilities of a Web portal. This proposal recommends a radical expansion of Artemis functions,…

  6. A short history of portal hypertension and of its management.

    PubMed

    Balducci, Genoveffa; Sterpetti, Antonio V; Ventura, Marco

    2016-03-01

    The aim of our study was to review the changing trends in the treatment of complications from portal hypertension. A short history of portal hypertension and of the treatment of its complications is reported, underlying the most important achievements and changes.

  7. Inflammation: a way to understanding the evolution of portal hypertension

    PubMed Central

    Aller, María-Angeles; Arias, Jorge-Luis; Cruz, Arturo; Arias, Jaime

    2007-01-01

    Background Portal hypertension is a clinical syndrome that manifests as ascites, portosystemic encephalopathy and variceal hemorrhage, and these alterations often lead to death. Hypothesis Splanchnic and/or systemic responses to portal hypertension could have pathophysiological mechanisms similar to those involved in the post-traumatic inflammatory response. The splanchnic and systemic impairments produced throughout the evolution of experimental prehepatic portal hypertension could be considered to have an inflammatory origin. In portal vein ligated rats, portal hypertensive enteropathy, hepatic steatosis and portal hypertensive encephalopathy show phenotypes during their development that can be considered inflammatory, such as: ischemia-reperfusion (vasodilatory response), infiltration by inflammatory cells (mast cells) and bacteria (intestinal translocation of endotoxins and bacteria) and lastly, angiogenesis. Similar inflammatory phenotypes, worsened by chronic liver disease (with anti-oxidant and anti-enzymatic ability reduction) characterize the evolution of portal hypertension and its complications (hepatorenal syndrome, ascites and esophageal variceal hemorrhage) in humans. Conclusion Low-grade inflammation, related to prehepatic portal hypertension, switches to high-grade inflammation with the development of severe and life-threatening complications when associated with chronic liver disease. PMID:17999758

  8. An Analysis of Knowledge Management Mechanisms in Healthcare Portals

    ERIC Educational Resources Information Center

    Lee, Chei Sian; Goh, Dion Hoe-Lian; Chua, Alton Y. K.

    2010-01-01

    Healthcare portals are becoming increasingly popular with Internet users since they play an important role in supporting interaction between individuals and healthcare organizations with a Web presence. Additionally, many of these organizations make use of knowledge management mechanisms on their healthcare portals to manage the abundance of…

  9. An Analysis of Knowledge Management Mechanisms in Healthcare Portals

    ERIC Educational Resources Information Center

    Lee, Chei Sian; Goh, Dion Hoe-Lian; Chua, Alton Y. K.

    2010-01-01

    Healthcare portals are becoming increasingly popular with Internet users since they play an important role in supporting interaction between individuals and healthcare organizations with a Web presence. Additionally, many of these organizations make use of knowledge management mechanisms on their healthcare portals to manage the abundance of…

  10. Congenital duodenal obstruction due to a preduodenal portal vein.

    PubMed

    Pathak, D; Sarin, Yogesh Kumar

    2006-05-01

    Only about 80 cases of pre-duodenal portal vein (PDPV), a rare congenital anomaly of portal vein development that was first described by Knight in 1921, have been reported till date.[1] We report a neonate with duodenal obstruction caused by PDPV and briefly review the available literature.

  11. Measuring Campus Portal Effectiveness and the Contributing Factors

    ERIC Educational Resources Information Center

    Masrek, Mohamad Noorman bin

    2007-01-01

    Purpose: The purpose of the paper is to evaluate the effectiveness or success of universities' portal implementation from the perspective of students as users. Adopting the model developed by Delone and McLean, portal effectiveness is defined as being composed of information quality, systems quality and service quality. In addition, the paper also…

  12. 3. VIEW SOUTHEAST VIEW OF EAST PORTAL SHOWING SKEW AND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. VIEW SOUTHEAST- VIEW OF EAST PORTAL SHOWING SKEW AND PORTAL BRACING. - National Docks Branch Bridge N.D.2F, Spans former Central Railroad of New Jersey , west of New Jersey Turnpike, north of Communipaw Avenue near Johnson Avenue, Jersey City, Hudson County, NJ

  13. 8. East portal of 1898 swing span of Bridge Number ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. East portal of 1898 swing span of Bridge Number 210.52, view to east, 210mm lens. Note the difference in the latticed portal strut as compared to that of the 1929 approach span in the previous photo. - Southern Pacific Railroad Shasta Route, Bridge No. 210.52, Milepost 210.52, Tehama, Tehama County, CA

  14. Endovascular management for significant iatrogenic portal vein bleeding.

    PubMed

    Kim, Jong Woo; Shin, Ji Hoon; Park, Jonathan K; Yoon, Hyun-Ki; Ko, Gi-Young; Gwon, Dong Il; Kim, Jin Hyoung; Sung, Kyu-Bo

    2017-01-01

    Background Despite conservative treatment, hemorrhage from an intrahepatic branch of the portal vein can cause hemodynamic instability requiring urgent intervention. Purpose To retrospectively report the outcomes of hemodynamically significant portal vein bleeding after endovascular management. Material and Methods During a period of 15 years, four patients (2 men, 2 women; median age, 70.5 years) underwent angiography and embolization for iatrogenic portal vein bleeding. Causes of hemorrhage, angiographic findings, endovascular treatment, and complications were reported. Results Portal vein bleeding occurred after percutaneous liver biopsy (n = 2), percutaneous radiofrequency ablation (n = 1), and percutaneous cholecystostomy (n = 1). The median time interval between angiography and percutaneous procedure was 5 h (range, 4-240 h). Common hepatic angiograms including indirect mesenteric portograms showed active portal vein bleeding into the peritoneal cavity with (n = 1) or without (n = 2) an arterioportal (AP) fistula, and portal vein pseudoaneurysm alone with an AP fistula (n = 1). Successful transcatheter arterial embolization (n = 2) or percutaneous transhepatic portal vein embolization (n = 2) was performed. Embolic materials were n-butyl cyanoacrylate alone (n = 2) or in combination with gelatin sponge particles and coils (n = 2). There were no major treatment-related complications or patient mortality within 30 days. Conclusion Patients with symptomatic or life-threatening portal vein bleeding following liver-penetrating procedures can successfully be managed with embolization.

  15. Continued Use of a Chinese Online Portal: An Empirical Study

    ERIC Educational Resources Information Center

    Shih, Hung-Pin

    2008-01-01

    The evolution of the internet has made online portals a popular means of surfing the internet. In internet commerce, understanding the post-adoption behaviour of users of online portals can help enterprises to attract new users and retain existing customers. For predicting continued use intentions, this empirical study focused on applying and…

  16. Teachers' Acceptance and Use of an Educational Portal

    ERIC Educational Resources Information Center

    Pynoo, Bram; Tondeur, Jo; van Braak, Johan; Duyck, Wouter; Sijnave, Bart; Duyck, Philippe

    2012-01-01

    In this study, teachers' acceptance and use of an educational portal is assessed based on data from two sources: usage data (number of logins, downloads, uploads, reactions and pages viewed) and an online acceptance questionnaire. The usage data is extracted on two occasions from the portal's database: at survey completion (T1) and twenty-two…

  17. Measuring Campus Portal Effectiveness and the Contributing Factors

    ERIC Educational Resources Information Center

    Masrek, Mohamad Noorman bin

    2007-01-01

    Purpose: The purpose of the paper is to evaluate the effectiveness or success of universities' portal implementation from the perspective of students as users. Adopting the model developed by Delone and McLean, portal effectiveness is defined as being composed of information quality, systems quality and service quality. In addition, the paper also…

  18. Giant Intrahepatic Portal Vein Aneurysm: Leave it or Treat it?

    PubMed

    Shrivastava, Amit; Rampal, Jagdeesh S; Nageshwar Reddy, D

    2017-03-01

    Portal vein aneurysm (PVA) is a rare vascular dilatation of the portal vein. It is a rare vascular anomaly representing less than 3% of all visceral aneurysms and is not well understood. Usually, PVA are incidental findings, are asymptomatic, and clinical symptoms are proportionally related to size. Patients present with nonspecific epigastric pain or gastrointestinal bleeding with underlying portal hypertension. PVA may be associated with various complications such as biliary tract compression, portal vein thrombosis/rupture, duodenal compression, gastrointestinal bleeding, and inferior vena cava obstruction. Differential diagnoses of portal vein aneurysms are solid, cystic, and hypervascular abdominal masses, and it is important that the radiologists be aware of their multi-modality appearance; hence, the aim of this article was to provide an overview of the available literature to better simplify various aspects of this rare entity and diagnostic appearance on different modality with available treatment options. In our case, a 55-year-old male patient came to the gastroenterology OPD for further management of pancreatitis with portal hypertension and biliary obstruction with plastic stents in CBD and PD for the same. In this article, we have reported a case of largest intrahepatic portal vein aneurysm and its management by endovascular technique. As per our knowledge, this is the largest intrahepatic portal vein aneurysm and first case where the endovascular technique was used for the treatment of the same.

  19. MedEdPORTAL: Educational Scholarship for Teaching

    ERIC Educational Resources Information Center

    Reynolds, Robby J.; Candler, Christopher S.

    2008-01-01

    MedEdPORTAL is an online publication service provided at no charge by the Association of American Medical Colleges (AAMC). The intent is to promote collaboration and educational scholarship by helping educators publish and share educational resources. With MedEdPORTAL, users can quickly locate high-quality, peer-reviewed teaching materials in both…

  20. Portal: Your Door to World Languages and Cultures

    ERIC Educational Resources Information Center

    Elliott, Don; Lawton, Rachele

    2009-01-01

    Portal: Your Door to World Languages and Cultures was a series of public cultural events, in a variety of formats, created through a new partnership between the credit and continuing education (noncredit) foreign language programs at the Community College of Baltimore County (CCBC). Portal was designed to cultivate interest in foreign languages…

  1. South portal and deck view from south, showing inclined endposts, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    South portal and deck view from south, showing inclined endposts, Pratt through trusses, south portal strut, overhead bracing, pipe rails and posts, and concrete deck with bituminous wearing surface - Castle Garden Bridge, Township Route 343 over Bennetts Branch of Sinnemahoning Creek, Driftwood, Cameron County, PA

  2. 2. West portal of Tunnel 18, oblique view to northnortheast, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. West portal of Tunnel 18, oblique view to north-northeast, 135mm lens. Note the use of concrete face and wingwalls, with dressed stone voussoirs, wingwall coping, parapet with stone belt course and coping, and coursed stone masonry slope protection flanking the portal. - Southern Pacific Railroad Natron Cutoff, Tunnel No. 18, Milepost 410, Dorris, Siskiyou County, CA

  3. North portal and deck view, from north, showing inclined endposts, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    North portal and deck view, from north, showing inclined endposts, Pratt through trusses, north portal strut, overhead bracing, pipe rails and posts, and concrete deck with bituminous wearing surface - Castle Garden Bridge, Township Route 343 over Bennetts Branch of Sinnemahoning Creek, Driftwood, Cameron County, PA

  4. Spontaneous Intrahepatic Portal Venous Shunt: Presentation and Endovascular Treatment.

    PubMed

    Sheth, Nakul; Sabbah, Nathanael; Contractor, Sohail

    2016-07-01

    Spontaneous intrahepatic portal venous shunts are rare with only few case reports published. Treatments using various endovascular techniques have been described, although no single technique has been shown to be preferred. We present a patient who was referred for treatment of a spontaneous portal venous shunt and describe our treatment approach and present a review on previously reported cases.

  5. 1. West portal of Tunnel 35, contextual view to eastnortheast ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. West portal of Tunnel 35, contextual view to east-northeast with west portal of Tunnel 36 (HAER CA-209) visible in distance at left, 135mm lens. - Central Pacific Transcontinental Railroad, Tunnel No. 35, Milepost 176.62, Yuba Pass, Nevada County, CA

  6. 6. East portal of Tunnel 17, oblique view to westsouthwest, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. East portal of Tunnel 17, oblique view to west-southwest, 90mm lens. This view shows to advantage the stepped concrete wingwalls and fitted stone masonry coping protection flanking the portal, features typical of the Southern Pacific Common Standard tunnels of this period. - Southern Pacific Railroad Natron Cutoff, Tunnel No. 17, Milepost 408, Dorris, Siskiyou County, CA

  7. 1. West portal of Tunnel 27 in distance, contextual view ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. West portal of Tunnel 27 in distance, contextual view to northeast looking past Tunnel 26 (HAER CA-202) from atop east portal of Tunnel 25 (HAER CA-201), 380mm lens. - Central Pacific Transcontinental Railroad, Tunnel No. 27, Milepost 133.9, Applegate, Placer County, CA

  8. Westfacing portals within Open Cut No. 2 (South Bergen Tunnel ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    West-facing portals within Open Cut No. 2 (South Bergen Tunnel on right, North Bergen Tunnel see HAER No. NJ-136) on left), from within the opposite portal of the South Bergen Tunnel, looking east - Delaware, Lackawanna & Western Railroad, South Bergen Tunnel, Jersey City, Hudson County, NJ

  9. 3. East portal of Tunnel 39, view to west with ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. East portal of Tunnel 39, view to west with east portal of Tunnel 38 (HAER CA-211) visible in distance, 135mm lens with electronic flash fill. - Central Pacific Transcontinental Railroad, Tunnel No. 39, Milepost 180.95, Cisco, Placer County, CA

  10. 6. East portal of Tunnel 18, oblique view to northwest, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. East portal of Tunnel 18, oblique view to northwest, 135mm lens. This view shows to advantage the stepped ashlar granite wingwalls and fitted rubble slab slope protection flanking the portal, features typical of the Southern Pacific Common Standard tunnels. - Central Pacific Transcontinental Railroad, Tunnel No. 18, Milepost 120.5, Newcastle, Placer County, CA

  11. 1. West portal of Tunnel 38, contextual view to east, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. West portal of Tunnel 38, contextual view to east, 135mm lens. West portal of Tunnel 3 (HAER CA-212) on original Central Pacific Transcontinental line visible in distance at left. - Central Pacific Transcontinental Railroad, Tunnel No. 38, Milepost 180.58, Cisco, Placer County, CA

  12. 1. West portal of Tunnel 39, contextual view to east, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. West portal of Tunnel 39, contextual view to east, 135mm lens. West portal of Tunnel 4 (HAER CA-214) on the original Central Pacific Transcontinental line is visible at left. - Central Pacific Transcontinental Railroad, Tunnel No. 39, Milepost 180.95, Cisco, Placer County, CA

  13. 8. FIGUEROA STREET TUNNEL NO. 2, SOUTH PORTAL SEEN FROM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. FIGUEROA STREET TUNNEL NO. 2, SOUTH PORTAL SEEN FROM ABOVE NORTH PORTAL OF TUNNEL NO. 3. LOOKING 12°N. - Figueroa Street Tunnels, Mileposts 24.90, 25.14, 25.28, & 25.37 on Arroyo Seco Parkway, Los Angeles, Los Angeles County, CA

  14. 12. Detail of west side of southwest portal showing the ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    12. Detail of west side of southwest portal showing the latticed diagonal brace and the hip vertical, pin-connected to the latticed inclined end post directly beneath the riveted connection with the portal bracing. - Post Road Bridge, State Route 7-A, Havre de Grace, Harford County, MD

  15. Stent Recanalization of Chronic Portal Vein Occlusion in a Child

    SciTech Connect

    Cwikiel, Wojciech; Solvig, Jan; Schroder, Henrik

    2000-07-15

    An 8-year-old boy with a 21/2 year history of portal hypertension and repeated bleedings from esophageal varices, was referred for treatment. The 3.5-cm-long occlusion of the portal vein was passed and the channel created was stabilized with a balloon-expandable stent; a portosystemic stent-shunt was also created. The portosystemic shunt closed spontaneously within 1 month, while the recanalized segment of the portal vein remained open. The pressure gradient between the intrahepatic and extrahepatic portal vein branches dropped from 17 mmHg to 0 mmHg. The pressure in the portal vein dropped from 30 mmHg to 17 mmHg and the bleedings stopped. The next dilation of the stent was performed 12 months later due to an increased pressure gradient; the gastroesophageal varices disappeared completely. Further dilation of the stent was planned after 2, 4, and 6 years.

  16. Portal hypertension in vinyl chloride monomer workers. A hemodynamic study.

    PubMed

    Blendis, L M; Smith, P M; Lawrie, B W; Stephens, M R; Evans, W D

    1978-08-01

    Hemodynamic studies were performed in 5 vinyl chloride monomer workers in whom splenomegaly or thrombocytopenia was detected during a screening program at major chemical plant. Three patients had portal hypertension and collateral venous circulations, with intrasplenic pressures between 20 and 29 mm Hg and normal wedged hepatic venous pressures, but the gradient between the wedged and free hepatic vein pressures was also increased. Splenic blood flows were increased in both hypertensive and normotensive patients. There was no correlation between the splenic blood flow and the portal pressure or the presence of portal fibrosis. The portal hypertension associated with vinyl chloride exposure is mainly presinusoidal in type, and may be attributed to an abnormality of the portal vein radicles, or hepatic sinusoids.

  17. Interface methods for using intranet portal organizational memory information system.

    PubMed

    Ji, Yong Gu; Salvendy, Gavriel

    2004-12-01

    In this paper, an intranet portal is considered as an information infrastructure (organizational memory information system, OMIS) supporting organizational learning. The properties and the hierarchical structure of information and knowledge in an intranet portal OMIS was identified as a problem for navigation tools of an intranet portal interface. The problem relates to navigation and retrieval functions of intranet portal OMIS and is expected to adversely affect user performance, satisfaction, and usefulness. To solve the problem, a conceptual model for navigation tools of an intranet portal interface was proposed and an experiment using a crossover design was conducted with 10 participants. In the experiment, a separate access method (tabbed tree tool) was compared to an unified access method (single tree tool). The results indicate that each information/knowledge repository for which a user has a different structural knowledge should be handled separately with a separate access to increase user satisfaction and the usefulness of the OMIS and to improve user performance in navigation.

  18. The NOAO NVO Portal: Client-Side VO

    NASA Astrophysics Data System (ADS)

    Gasson, D.; Fuentes, E.; Miller, C. J.

    2007-10-01

    The NOAO National Virtual Observatory (NVO) portal is a recently deployed web application for one-stop discovery, analysis, and access to VO-compliant imaging data and services. The NOAO NVO portal utilizes Simple Image Access Protocol (SIAP) services provided by some astronomical archives. The portal also utilizes a number of SOAP-based VO web services (WESIX, Sesame, etc). We discuss the design decisions and technology choices that were made in the NOAO NVO portal code to facilitate the use of IVOA standards and VO data/services. This includes a new Virtual Observatory library written for Ruby: an interpreted scripting language for quick and easy object-oriented programming. We provide an overview of VORuby and how it is utilized in the NOAO NVO Portal.

  19. Amyloidosis: an unusual cause of portal hypertension

    PubMed Central

    Laborda, Lorena Silva; Bernardelli, Raquel; Pinesi, Henrique Trombini; Silva, Marilia Polo Minguete e; Chiavelli, Viviane; Simões, Angélica Braz; Felipe-Silva, Aloisio

    2016-01-01

    Amyloidosis comprises a group of diseases that occurs in five to nine cases per million patients per year worldwide irrespective of its classification. Although the hepatic involvement in primary amyloidosis is frequent, the clinical manifestations of liver amyloidosis are mild or even absent. The authors report the case of an aged man who complained of diffuse abdominal pain and marked weight loss and presented clinical signs of hepatopathy. Clinical workup revealed portal hypertension with ascites, hemorrhoids, and esophageal varices. The laboratory tests showed the cholestatic pattern of liver enzymes, hyperbilirubinemia, renal insufficiency and massive proteinuria accompanied by the presence of serum pike of monoclonal lambda light chain protein. The outcome was unfavorable, and the patient died. The autopsy findings revealed the diagnosis of amyloidosis predominantly involving the liver and kidneys. The bone marrow examination demonstrated the deposition of amyloid material associated with clonal plasma cells infiltration. The authors call attention to portal hypertension as a rare manifestation of primary amyloidosis. Meanwhile, this diagnosis should be taken into account whenever the hepatopathy is accompanied by laboratory abnormalities consistent with hepatic space-occupying lesions concomitantly with other organs involvement. In the case reported herein, kidney involvement was also present with renal failure, massive proteinuria with monoclonal serum gammopathy, what reinforced the diagnostic possibility of primary amyloidosis. PMID:27547738

  20. A web portal for hydrodynamical, cosmological simulations

    NASA Astrophysics Data System (ADS)

    Ragagnin, A.; Dolag, K.; Biffi, V.; Cadolle Bel, M.; Hammer, N. J.; Krukau, A.; Petkova, M.; Steinborn, D.

    2017-07-01

    This article describes a data centre hosting a web portal for accessing and sharing the output of large, cosmological, hydro-dynamical simulations with a broad scientific community. It also allows users to receive related scientific data products by directly processing the raw simulation data on a remote computing cluster. The data centre has a multi-layer structure: a web portal, a job control layer, a computing cluster and a HPC storage system. The outer layer enables users to choose an object from the simulations. Objects can be selected by visually inspecting 2D maps of the simulation data, by performing highly compounded and elaborated queries or graphically by plotting arbitrary combinations of properties. The user can run analysis tools on a chosen object. These services allow users to run analysis tools on the raw simulation data. The job control layer is responsible for handling and performing the analysis jobs, which are executed on a computing cluster. The innermost layer is formed by a HPC storage system which hosts the large, raw simulation data. The following services are available for the users: (I) CLUSTERINSPECT visualizes properties of member galaxies of a selected galaxy cluster; (II) SIMCUT returns the raw data of a sub-volume around a selected object from a simulation, containing all the original, hydro-dynamical quantities; (III) SMAC creates idealized 2D maps of various, physical quantities and observables of a selected object; (IV) PHOX generates virtual X-ray observations with specifications of various current and upcoming instruments.

  1. Management of rectal varices in portal hypertension

    PubMed Central

    Al Khalloufi, Kawtar; Laiyemo, Adeyinka O

    2015-01-01

    Rectal varices are portosystemic collaterals that form as a complication of portal hypertension, their prevalence has been reported as high as 94% in patients with extrahepatic portal vein obstruction. The diagnosis is typically based on lower endoscopy (colonoscopy or sigmoidoscopy). However, endoscopic ultrasonography has been shown to be superior to endoscopy in diagnosing rectal varices. Color Doppler ultrasonography is a better method because it allows the calculation of the velocity of blood flow in the varices and can be used to predict the bleeding risk in the varices. Although rare, bleeding from rectal varices can be life threatening. The management of patients with rectal variceal bleeding is not well established. It is important to ensure hemodynamic stability with blood transfusion and to correct any coagulopathy prior to treating the bleeding varices. Endoscopic injection sclerotherapy has been reported to be more effective in the management of active bleeding from rectal varices with less rebleeding rate as compared to endoscopic band ligation. Transjugular intrahepatic portsystemic shunt alone or in combination with embolization is another method used successfully in control of bleeding. Balloon-occluded retrograde transvenous obliteration is an emerging procedure for management of gastric varices that has also been successfully used to treat bleeding rectal varices. Surgical procedures including suture ligation and porto-caval shunts are considered when other methods have failed. PMID:26730278

  2. Higgs portal valleys, stability and inflation

    NASA Astrophysics Data System (ADS)

    Ballesteros, Guillermo; Tamarit, Carlos

    2015-09-01

    The measured values of the Higgs and top quark masses imply that the Standard Model potential is very likely to be unstable at large Higgs values. This is particularly problematic during inflation, which sources large perturbations of the Higgs. The instability could be cured by a threshold effect induced by a scalar with a large vacuum expectation value and directly connected to the Standard Model through a Higgs portal coupling. However, we find that in a minimal model in which the scalar generates inflation, this mechanism does not stabilize the potential because the mass required for inflation is beyond the instability scale. This conclusion does not change if the Higgs has a direct weak coupling to the scalar curvature. On the other hand, if the potential is absolutely stable, successful inflation in agreement with current CMB data can occur along a valley of the potential with a Mexican hat profile. We revisit the stability conditions, independently of inflation, and clarify that the threshold effect cannot work if the Higgs portal coupling is too small. We also show that inflation in a false Higgs vacuum appearing radiatively for a tuned ratio of the Higgs and top masses leads to an amplitude of primordial gravitational waves that is far too high, ruling out this possibility.

  3. Automatic indexing in a drug information portal.

    PubMed

    Sakji, Saoussen; Letord, Catherine; Dahamna, Badisse; Kergourlay, Ivan; Pereira, Suzanne; Joubert, Michel; Darmoni, Stéfan

    2009-01-01

    The objective of this work is to create a bilingual (French/English) Drug Information Portal (DIP), in a multi-terminological context and to emphasize its exploitation by an ATC automatic indexing allowing having more pertinent information about substances, organs or systems on which drugs act and their therapeutic and chemical characteristics. The development of the DIP was based on the CISMeF portal, which catalogues and indexes the most important and quality-controlled sources of institutional health information in French. DIP has created specific functionalities and uses specific drugs terminologies such as the ATC classification which used to automatic index the DIP resources. DIP is the result of collaboration between the CISMeF team and the VIDAL Company, specialized in drug information. DIP is conceived to facilitate the user information retrieval. The ATC automatic indexing provided relevant results in 76% of cases. Using multi-terminological context and in the framework of the drug field, indexing drugs with the appropriate codes or/and terms revealed to be very important to have the appropriate information storage and retrieval. The main challenge in the coming year is to increase the accuracy of the approach.

  4. Software tool for portal dosimetry research.

    PubMed

    Vial, P; Hunt, P; Greer, P B; Oliver, L; Baldock, C

    2008-09-01

    This paper describes a software tool developed for research into the use of an electronic portal imaging device (EPID) to verify dose for intensity modulated radiation therapy (IMRT) beams. A portal dose image prediction (PDIP) model that predicts the EPID response to IMRT beams has been implemented into a commercially available treatment planning system (TPS). The software tool described in this work was developed to modify the TPS PDIP model by incorporating correction factors into the predicted EPID image to account for the difference in EPID response to open beam radiation and multileaf collimator (MLC) transmitted radiation. The processes performed by the software tool include; i) read the MLC file and the PDIP from the TPS, ii) calculate the fraction of beam-on time that each point in the IMRT beam is shielded by MLC leaves, iii) interpolate correction factors from look-up tables, iv) create a corrected PDIP image from the product of the original PDIP and the correction factors and write the corrected image to file, v) display, analyse, and export various image datasets. The software tool was developed using the Microsoft Visual Studio.NET framework with the C# compiler. The operation of the software tool was validated. This software provided useful tools for EPID dosimetry research, and it is being utilised and further developed in ongoing EPID dosimetry and IMRT dosimetry projects.

  5. Portal copper transport in rats by albumin

    SciTech Connect

    Gordon, D.T.; Leinart, A.S.; Cousins, R.J.

    1987-03-01

    The distribution of newly absorbed copper among serum proteins obtained from the portal circulation of rats was examined by conventional and high-performance gel filtration chromatography, affinity chromatography, and Western blotting. Within 10-30 min after being administered by gavage or directly into the intestine, /sup 67/Cu and /sup 64/Cu, respectively, were recovered in the albumin fraction. By 8 h after administration of the radionuclides, virtually all of the radioactivity was found with ceruloplasmin. Affigel blue fractionation and subsequent Superose-6 chromatography further demonstrated that all of the copper in the albumin-containing fractions was in fact bound to this protein rather than high molecular weight moieties. Vascular perfusion of the isolated rat intestine, where /sup 64/Cu was infused into the lumen, showed that newly absorbed /sup 64/Cu in the vascular perfusate collected from the cannulated portal vein was associated with albumin. Uptake of radioactivity by isolated rat liver parenchymal cells from medium containing rat serum with /sup 67/Cu bound to albumin was demonstrated. In vitro binding of /sup 64/Cu to serum proteins that were transferred to nitrocellulose by Western blotting techniques showed that albumin is essentially the only protein that binds appreciable amounts of copper. The data suggest that albumin is the plasma protein that is responsible for the initial transport of copper after absorption.

  6. Portal Hypertension as Immune Mediate Disease

    PubMed Central

    Manti, Sara; Marseglia, Lucia; D'Angelo, Gabriella; Filippelli, Martina; Cuppari, Caterina; Gitto, Eloisa; Romano, Claudio; Arrigo, Teresa; Salpietro, Carmelo

    2014-01-01

    Context: Portal Hypertension (PH) is a progressive complication due to chronic liver disease. In addition to pathophysiologic changes in the micro-circulation, in PH are established fibrous tissue (periportal fibrous septal) and regenerative hyperplastic nodules (from micro- to macro-nodules) promoting hepatic architectural distortion. Evidence Acquisition: A literature search of electronic databases was undertaken for the major studies published from 1981 to today. The databases searched were: PubMed, EMBASE, Orphanet, Midline and Cochrane Library. We used the keywords: "portal hypertension, children, immune system, endocrine system, liver fibrosis". Results: It is believed that PH results from three “phenotype”: ischemia-reperfusion, involving nervous system (NS); edema and oxidative damage, involving immune system; inflammation and angiogenesis, involving endocrine system. However, its exact cause still underdiagnosed and unknown. Conclusions: PH is a dynamic and potentially reversible process. Researchers have tried to demonstrate mechanisms underlying PH and its related-complications. This review focuses on the current knowledge regarding the pathogenesis, and immune, endocrine-metabolic factors of disease. The strong positive association between immune system and development of PH could be efficient to identify non-invasive markers of disease, to modify prognosis of PH, and to development and application of specific and individual anti-inflammatory therapy. PMID:24976841

  7. Dark matter decay through gravity portals

    NASA Astrophysics Data System (ADS)

    Catà, Oscar; Ibarra, Alejandro; Ingenhütt, Sebastian

    2017-02-01

    Motivated by the fact that, so far, the whole body of evidence for dark matter is of gravitational origin, we study the decays of dark matter into Standard Model particles mediated by gravity portals, i.e., through nonminimal gravitational interactions of dark matter. We investigate the decays in several widely studied frameworks of scalar and fermionic dark matter where the dark matter is stabilized in flat spacetime via global symmetries. We find that the constraints on the scalar singlet dark matter candidate are remarkably strong and exclude large regions of the parameter space, suggesting that an additional stabilizing symmetry should be in place. In contrast, the scalar doublet and the fermionic singlet candidates are naturally protected against too-fast decays by gauge and Lorentz symmetry, respectively. For a nonminimal coupling parameter ξ ˜O (1 ), decays through the gravity portal are consistent with observations if the dark matter mass is smaller than ˜105 GeV , for the scalar doublet, and ˜1 06 GeV , for the fermionic singlet.

  8. The ADRICOSM STAR GeoPortal

    NASA Astrophysics Data System (ADS)

    Giorgetti, Alessandra; Cesarini, Claudia; Gambetta, Marco; Reseghetti, Franco; Vinci, Matteo

    2010-05-01

    From Stockholm (1972) to Rio de Janeiro (1992) and to Johannesburg (2002), environmental protection objectives are related to the principles of sustainable development. This includes the following important components: participation, information, communication, training (capacity building) and education. Better information ensure more participation from individuals, and allows citizens to take part in many different actions that can influence the policy process. Participation to political decisions need access to reliable and quality controlled information. The ADRICOSM Portal was developed in order to manage data diversity, provide access to any kind of product, provide metadata completeness and accuracy. The product, as defined in ADRICOSM, is anything that can be offered to a client and that might satisfy a want or need. This implied the implementation of services that was taking into consideration the diversity of the objects to be provided to users: observations, model outputs, maps, etc. The implementation of the portal was based on two metadata levels: 1. Directory level - consisting of broad descriptions of the contents of data sets; used to locate data sets of potential interest and 2. Data level - consisting of the actual data objects. The portal was developed as a simplified front end for the partners data management systems, giving emphasis on federated access points focused on thematic aspects. This was based on the idea that specialized customer-related access points can be better carried out by delegated teams of experts who know the needs of different customers, define the user software which is most suited to them. The data management systems provide facilities for two data tracks, one in real-time (or near-realtime) and one in delayed mode. Both tracks are based on the same data sources and transmission systems, but the data follow different routes and are processed differently depending on user requirements. The real-time data and model products

  9. Splanchnic-aortic inflammatory axis in experimental portal hypertension

    PubMed Central

    Aller, Maria-Angeles; de las Heras, Natalia; Nava, Maria-Paz; Regadera, Javier; Arias, Jaime; Lahera, Vicente

    2013-01-01

    Splanchnic and systemic low-grade inflammation has been proposed to be a consequence of long-term prehepatic portal hypertension. This experimental model causes minimal alternations in the liver, thus making a more selective study possible for the pathological changes characteristic of prehepatic portal hypertension. Low-grade splanchnic inflammation after long-term triple partial portal vein ligation could be associated with liver steatosis and portal hypertensive intestinal vasculopathy. In fact, we have previously shown that prehepatic portal hypertension in the rat induces liver steatosis and changes in lipid and carbohydrate metabolism similar to those produced in chronic inflammatory conditions described in metabolic syndrome in humans. Dysbiosis and bacterial translocation in this experimental model suggest the existence of a portal hypertensive intestinal microbiome implicated in both the splanchnic and systemic alterations related to prehepatic portal hypertension. Among the systemic impairments, aortopathy characterized by oxidative stress, increased levels of proinflammatory cytokines and profibrogenic mediators stand out. In this experimental model of long-term triple portal vein ligated-rats, the abdominal aortic proinflammatory response could be attributed to oxidative stress. Thus, the increased aortic reduced-nicotinamide-adenine dinucleotide phosphate [NAD(P)H] oxidase activity could be associated with reactive oxygen species production and promote aortic inflammation. Also, oxidative stress mediated by NAD(P)H oxidase has been associated with risk factors for inflammation and atherosclerosis. The splanchnic and systemic pathology that is produced in the long term after triple partial portal vein ligation in the rat reinforces the validity of this experimental model to study the chronic low-grade inflammatory response induced by prehepatic portal hypertension. PMID:24307792

  10. Organic Scintillation Detectors for Spectroscopic Radiation Portal Monitors

    NASA Astrophysics Data System (ADS)

    Paff, Marc Gerrit

    Thousands of radiation portal monitors have been deployed worldwide to detect and deter the smuggling of nuclear and radiological materials that could be used in nefarious acts. Radiation portal monitors are often installed at bottlenecks where large amounts of people or goods must traverse. Examples of use include scanning cargo containers at shipping ports, vehicles at border crossings, and people at high profile functions and events. Traditional radiation portal monitors contain separate detectors for passively measuring neutron and gamma ray count rates. 3He tubes embedded in polyethylene and slabs of plastic scintillators are the most common detector materials used in radiation portal monitors. The radiation portal monitor alarm mechanism relies on measuring radiation count rates above user defined alarm thresholds. These alarm thresholds are set above natural background count rates. Minimizing false alarms caused by natural background and maximizing sensitivity to weakly emitting threat sources must be balanced when setting these alarm thresholds. Current radiation portal monitor designs suffer from frequent nuisance radiation alarms. These radiation nuisance alarms are most frequently caused by shipments of large quantities of naturally occurring radioactive material containing cargo, like kitty litter, as well as by humans who have recently undergone a nuclear medicine procedure, particularly 99mTc treatments. Current radiation portal monitors typically lack spectroscopic capabilities, so nuisance alarms must be screened out in time-intensive secondary inspections with handheld radiation detectors. Radiation portal monitors using organic liquid scintillation detectors were designed, built, and tested. A number of algorithms were developed to perform on-the-fly radionuclide identification of single and combination radiation sources moving past the portal monitor at speeds up to 2.2 m/s. The portal monitor designs were tested extensively with a variety of

  11. 29 CFR 790.5 - Effect of Portal-to-Portal Act on determination of hours worked.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Labor Standards Act, all of the time spent in the travel which is so made compensable. 32 But if there... the working face to the portal of the mine, the only time spent in such travel which the employer is required to count as hours worked will be the time spent in traveling from the portal to the working face...

  12. Culture Model of Rat Portal Myofibroblasts

    PubMed Central

    El Mourabit, Haquima; Loeuillard, Emilien; Lemoinne, Sara; Cadoret, Axelle; Housset, Chantal

    2016-01-01

    Myofibroblasts are matrix-producing cells with contractile properties, usually characterized by de novo expression of alpha-smooth muscle actin, that arise in fibrotic diseases. Hepatic stellate cells (HSCs), known as perisinusoidal cells containing auto-fluorescent vitamin A, are the major although not exclusive source of myofibroblasts in the injured liver. Portal myofibroblasts (PMFs) have been defined as liver myofibroblasts derived from cells that are distinct from HSCs and located in the portal tract. Here, we describe the protocol we have established to obtain rat PMFs in culture. In this method, the biliary tree is (i) separated from the liver parenchyma by in situ enzymatic perfusion of the liver, (ii) minced and further digested in vitro, until bile duct segments are isolated by sequential filtration. Bile duct isolates free of HSC contaminants, form small cell clusters, which initially comprise a large majority of epithelial cells. In culture conditions (fetal bovine serum) that provide a growth advantage to mesenchymal cells over epithelial cells, the epithelial cells die and detach from the substrate, while spindle-shaped cells outgrow from the periphery of the cell clusters, as shown by video-microscopy. These cells are highly proliferative and after 4–5 days, the culture is composed exclusively of fully differentiated myofibroblasts, which express alpha-smooth muscle actin and collagen 1, and secrete abundant collagen. We found no evidence for epithelial-mesenchymal transition, i.e., no co-expression of alpha-smooth muscle actin and cytokeratin at any stage, while cytokeratin becomes undetectable in the confluent cells. PMFs obtained by this method express the genes that were previously reported to be overexpressed in non-HSC or portal fibroblast-derived liver myofibroblasts as compared to HSC-derived myofibroblasts, including the most discriminant, collagen 15, fibulin 2, and Thy-1. After one passage, PMFs retain the same phenotypic features as in

  13. Culture Model of Rat Portal Myofibroblasts.

    PubMed

    El Mourabit, Haquima; Loeuillard, Emilien; Lemoinne, Sara; Cadoret, Axelle; Housset, Chantal

    2016-01-01

    Myofibroblasts are matrix-producing cells with contractile properties, usually characterized by de novo expression of alpha-smooth muscle actin, that arise in fibrotic diseases. Hepatic stellate cells (HSCs), known as perisinusoidal cells containing auto-fluorescent vitamin A, are the major although not exclusive source of myofibroblasts in the injured liver. Portal myofibroblasts (PMFs) have been defined as liver myofibroblasts derived from cells that are distinct from HSCs and located in the portal tract. Here, we describe the protocol we have established to obtain rat PMFs in culture. In this method, the biliary tree is (i) separated from the liver parenchyma by in situ enzymatic perfusion of the liver, (ii) minced and further digested in vitro, until bile duct segments are isolated by sequential filtration. Bile duct isolates free of HSC contaminants, form small cell clusters, which initially comprise a large majority of epithelial cells. In culture conditions (fetal bovine serum) that provide a growth advantage to mesenchymal cells over epithelial cells, the epithelial cells die and detach from the substrate, while spindle-shaped cells outgrow from the periphery of the cell clusters, as shown by video-microscopy. These cells are highly proliferative and after 4-5 days, the culture is composed exclusively of fully differentiated myofibroblasts, which express alpha-smooth muscle actin and collagen 1, and secrete abundant collagen. We found no evidence for epithelial-mesenchymal transition, i.e., no co-expression of alpha-smooth muscle actin and cytokeratin at any stage, while cytokeratin becomes undetectable in the confluent cells. PMFs obtained by this method express the genes that were previously reported to be overexpressed in non-HSC or portal fibroblast-derived liver myofibroblasts as compared to HSC-derived myofibroblasts, including the most discriminant, collagen 15, fibulin 2, and Thy-1. After one passage, PMFs retain the same phenotypic features as in

  14. Efficacy and Safety of Direct-Acting Oral Anticoagulants Use in Acute Portal Vein Thrombosis Unrelated to Cirrhosis

    PubMed Central

    Nery, Filipe; Valadares, Diana; Morais, Sara; Gomes, Manuel Teixeira; De Gottardi, Andrea

    2017-01-01

    In acute portal vein thrombosis (APVT) unrelated to cirrhosis, anticoagulant therapy is classically started with low molecular weight heparin or vitamin K antagonists. New direct-acting oral anticoagulants (DOACs) are used in the treatment of venous thrombosis outside the splanchnic vascular bed, but not in the latter. We report a young female with APVT occurring in a non-cirrhotic liver linked to heterozygosity of factor V-Leiden and prothrombin G20210A gene mutations. Rivaroxaban was started, with total recanalization of the left and partial recanalization of the right portal vein branches, without complications. New DOACs do not need daily subcutaneous injections nor routinely blood coagulation control tests, making its use attractive, eventually increasing patient’s compliance. If proved to be safe and effective in the future studies, its use may be extended to PVT treatment. This case shows that rivaroxaban was safe, not only prevented the extension of thrombosis in the portal tract, but also resolved PVT, at least partially. PMID:28496539

  15. [Function of portal pressure during operation on the choice of surgical approaches in portal hypertension].

    PubMed

    Chen, Wei; Luo, Meng; Sun, Yong-wei; Xu, Qing; Zhao, Gang; Hua, Rong; Liu, Wei; Jiang, Chun-hui; Shi, Chang-ying; Wu, Zhi-yong

    2008-11-15

    To investigate the relationship between perioperative free portal pressure (FPP) after devascularization or spleno-renal shunt operation added devascularization and rebleeding or encephalopathy in patients with portal hypertension, and evaluate the relationship between dynamic changes of FPP and surgical approaches. The clinical data of 170 patients with portal hypertension receiving devascularization or devascularization with spleno-renal shunt operation (combination group) from January 2001 to December 2007 were retrospectively analyzed. All patients were divided into three groups: low pressure group [L group, after devascularization FPP 22 mm Hg, n = 60) and combination group (C group, n = 47). There was no significant difference in preoperative Child-Pugh score and pre-operation FPP (P > 0.05) among the three groups. Perioperative FPP, morbidity of rebleeding and encephalopathy were compared with each other. The values of postoperative FPP were (27.1 +/- 1.9) mm Hg, (20.8 +/- 1.8) mm Hg and (21.5 +/- 2.2) mm Hg among the H group, L group and C group respectively. The rebleeding rates were 21.7%, 4.6% and 4.5% among the three groups respectively. All the values in H group were higher than those in L group and C group remarkably. The encephalopathy rate in C group (10.4%) was higher than that in L group (7.0%) or H group (3.3%), but there were no statistical significance (P > 0.05). FPP after splenectomy and devascularization may be a basis of choice of surgical approaches in portal hypertension. The spleno-renal shunt operation should be performed in the patients when FPP is over 22 mm Hg after devascularization.

  16. [Portal perfusion with right gastroepiploic vein flow in liver transplant].

    PubMed

    Mendoza-Sánchez, Federico; Javier-Haro, Francisco; Mendoza-Medina, Diego Federico; González-Ojeda, Alejandro; Cortés-Lares, José Antonio; Fuentes-Orozco, Clotilde

    Liver transplantation in patients with liver cirrhosis, portal vein thrombosis, and cavernous transformation of the portal vein, is a complex procedure with high possibility of liver graft dysfunction. It is performed in 2-19% of all liver transplants, and has a significantly high mortality rate in the post-operative period. Other procedures to maintain portal perfusion have been described, however there are no reports of liver graft perfusion using right gastroepiploic vein. A 20 year-old female diagnosed with cryptogenic cirrhosis, with a Child-Pugh score of 7 points (class "B"), and MELD score of 14 points, with thrombosis and cavernous transformation of the portal vein, severe portal hypertension, splenomegaly, a history of upper gastrointestinal bleeding due to oesophageal varices, and left renal agenesis. The preoperative evaluation for liver transplantation was completed, and the right gastroepiploic vein of 1-cm diameter was observed draining to the infrahepatic inferior vena cava and right suprarenal vein. An orthotopic liver transplantation was performed from a non-living donor (deceased on January 30, 2005) using the Piggy-Back technique. Portal vein perfusion was maintained using the right gastroepiploic vein, and the outcome was satisfactory. The patient was discharged 13 days after surgery. Liver transplantation was performed satisfactorily, obtaining an acceptable outcome. In this case, the portal perfusion had adequate blood flow through the right gastroepiploic vein. Copyright © 2015 Academia Mexicana de Cirugía A.C. Publicado por Masson Doyma México S.A. All rights reserved.

  17. Clinical role of non-invasive assessment of portal hypertension

    PubMed Central

    Bolognesi, Massimo; Di Pascoli, Marco; Sacerdoti, David

    2017-01-01

    Measurement of portal pressure is pivotal in the evaluation of patients with liver cirrhosis. The measurement of the hepatic venous pressure gradient represents the reference method by which portal pressure is estimated. However, it is an invasive procedure that requires significant hospital resources, including experienced staff, and is associated with considerable cost. Non-invasive methods that can be reliably used to estimate the presence and the degree of portal hypertension are urgently needed in clinical practice. Biochemical and morphological parameters have been proposed for this purpose, but have shown disappointing results overall. Splanchnic Doppler ultrasonography and the analysis of microbubble contrast agent kinetics with contrast-enhanced ultrasonography have shown better accuracy for the evaluation of patients with portal hypertension. A key advancement in the non-invasive evaluation of portal hypertension has been the introduction in clinical practice of methods able to measure stiffness in the liver, as well as stiffness/congestion in the spleen. According to the data published to date, it appears to be possible to rule out clinically significant portal hypertension in patients with cirrhosis (i.e., hepatic venous pressure gradient ≥ 10 mmHg) with a level of clinically-acceptable accuracy by combining measurements of liver stiffness and spleen stiffness along with Doppler ultrasound evaluation. It is probable that the combination of these methods may also allow for the identification of patients with the most serious degree of portal hypertension, and ongoing research is helping to ensure progress in this field. PMID:28104976

  18. Clinical role of non-invasive assessment of portal hypertension.

    PubMed

    Bolognesi, Massimo; Di Pascoli, Marco; Sacerdoti, David

    2017-01-07

    Measurement of portal pressure is pivotal in the evaluation of patients with liver cirrhosis. The measurement of the hepatic venous pressure gradient represents the reference method by which portal pressure is estimated. However, it is an invasive procedure that requires significant hospital resources, including experienced staff, and is associated with considerable cost. Non-invasive methods that can be reliably used to estimate the presence and the degree of portal hypertension are urgently needed in clinical practice. Biochemical and morphological parameters have been proposed for this purpose, but have shown disappointing results overall. Splanchnic Doppler ultrasonography and the analysis of microbubble contrast agent kinetics with contrast-enhanced ultrasonography have shown better accuracy for the evaluation of patients with portal hypertension. A key advancement in the non-invasive evaluation of portal hypertension has been the introduction in clinical practice of methods able to measure stiffness in the liver, as well as stiffness/congestion in the spleen. According to the data published to date, it appears to be possible to rule out clinically significant portal hypertension in patients with cirrhosis (i.e., hepatic venous pressure gradient ≥ 10 mmHg) with a level of clinically-acceptable accuracy by combining measurements of liver stiffness and spleen stiffness along with Doppler ultrasound evaluation. It is probable that the combination of these methods may also allow for the identification of patients with the most serious degree of portal hypertension, and ongoing research is helping to ensure progress in this field.

  19. Enabling OpenID Authentication for VO-integrated Portals

    NASA Astrophysics Data System (ADS)

    Plante, R.; Yekkirala, V.; Baker, W.

    2012-09-01

    To support interoperating services that share proprietary data and other user-specific information, the VAO Project provides login services for browser-based portals built on the open standard, OpenID. To help portal developers take advantage of this service, we have developed a downloadable toolkit for integrating OpenID single sign-on support into any portal. This toolkit provides APIs in a few languages commonly used on the server-side as well as a command-line version for use in any language. In addition to describing how to use this toolkit, we also discuss the general VAO framework for single sign-on. While a portal may, if it wishes, support any OpenID provider, the VAO service provides a few extra features to support VO interoperability. This includes a portal's ability to retrieve (with the user's permission) an X.509 certificate representing the authenticated user so that the portal can access other restricted services on the user's behalf. Other standard features of OpenID allow portals to request other information about the user; this feature will be used in the future for sharing information about a user's group membership to enable sharing within a group of collaborating scientists.

  20. Effect of laparoscopic splenectomy on portal hypertensive gastropathy in cirrhotic patients with portal hypertension.

    PubMed

    Anegawa, Go; Kawanaka, Hirofumi; Uehara, Hideo; Akahoshi, Tomohiko; Konishi, Kozo; Yoshida, Daisuke; Kinjo, Nao; Hashimoto, Naotaka; Tomikawa, Morimasa; Hashizume, Makoto; Maehara, Yoshihiko

    2009-09-01

    This study investigated the relationship between portal hypertensive gastropathy (PHG) and splenomegaly, and the effect of laparoscopic splenectomy on PHG in cirrhotic patients with portal hypertension. Seventy patients with liver cirrhosis and portal hypertension were prospectively studied. Indication for laparoscopic splenectomy was bleeding tendency in 10 patients, induction of interferon in 45, treatment of hepatocellular carcinoma in seven, and treatment for endoscopic injection sclerotherapy-resistant esophagogastric varices in eight. The severity of PHG was classified into none, mild, or severe according to the classification by McCormack et al. The severity of liver disease was classified using the Child-Pugh score. All patients underwent upper gastrointestinal endoscopy before and 1 month after the operation. The prevalence of PHG was significantly correlated with the severity of liver disease using the Child-Pugh score. The severity of PHG was significantly correlated with the resected spleen volume. One month after the operation, PHG was improved in 16 of 17 patients with severe PHG and in 12 of 32 with mild PHG. The Child-Pugh score showed a significant improvement (6.8 +/- 1.4 to 6.2 +/- 1.2) at 3 months after laparoscopic splenectomy (P < 0.0001). PHG may be associated with splenomegaly, and laparoscopic splenectomy may have a beneficial effect on PHG, at least for a short time.

  1. [Portal hypertension in children. Follow-up after portal systemic shunts (author's transl)].

    PubMed

    Bernard, O; Alvarez, F; Alagille, D

    1982-01-01

    The retrospective study of 115 children in whom a successful portosystemic shunt was carried out for portal hypertension, provides the following conclusions: 1) Patency of the shunt must be checked by esophageal endoscopy, six months postoperatively. A patent shunt can be expected when the size of the spleen and/or thrombocytopenia improve in the early post-operative period. Early ultrasound examination is also very useful in that respect. 2) None of the children with extrahepatic portal vein obstruction or congenital hepatic fibrosis presented with clinical signs of portal systemic encephalopathy (PSE). 3) Eight of 30 children with cirrhosis presented with one or more clinical episodes of PSE. Some were transient allowing for a normal diet to be resumed later on. 4) It is thus advisable to give children with cirrhosis a low protein diet in the months after surgery. Protein content of the diet can usually be increased progressively over a period of one to two years. 5) Whenever splenectomy is necessary, it is mandatory to prevent pneumococcal infections with the pneumococcal vaccine and daily treatment with oral penicillin.

  2. Portal Vein Recanalization and Transjugular Intrahepatic Portosystemic Shunt Creation for Chronic Portal Vein Thrombosis: Technical Considerations.

    PubMed

    Thornburg, Bartley; Desai, Kush; Hickey, Ryan; Kulik, Laura; Ganger, Daniel; Baker, Talia; Abecassis, Michael; Lewandowski, Robert J; Salem, Riad

    2016-03-01

    Portal vein thrombosis (PVT) is common in cirrhotic patients and presents a challenge at the time of transplant. Owing to the increased posttransplant morbidity and mortality associated with complete PVT, the presence of PVT is a relative contraindication to liver transplantation at many centers. Our group began performing portal vein (PV) recanalization and transjugular intrahepatic portostystemic shunt placement (PVR-TIPS) several years ago to optimize the transplant candidacy of patients with PVT. The procedure has evolved to include transsplenic access to assist with recanalization, which is now our preferred method due to its technical success without significant added morbidity. Here, we describe in detail our approach to PVR-TIPS with a focus on the transsplenic method. The procedure was attempted in 61 patients and was technically successful in 60 patients (98%). After transitioning to transsplenic access to assist with recanalization, the technical success rate has improved to 100%. The recanalized portal vein and TIPS have maintained patency during follow-up, or to the time of transplant, in 55 patients (92%) with a mean follow-up of 16.7 months. In total, 23 patients (38%) have undergone transplant, all of whom received a physiologic anastomosis (end-to-end anastomosis in 22 of 23 patients, 96%). PVR-TIPS placement should be considered as an option for patients with chronic PVT in need of transplantation. Transsplenic access makes the procedure technically straightforward and should be considered as the primary method for recanalization.

  3. Gastric Polyposis: A Rare Cause of Iron Deficiency Anemia in a Patient With Portal Hypertension

    PubMed Central

    Macaron, Carole; Pai, Rish K.; Alkhouri, Naim

    2015-01-01

    Portal hypertension leading to gastric polyposis has rarely been reported. More common gastric manifestations of portal hypertension are portal hypertensive gastropathy and gastric antral vascular ectasia (GAVE). We report a case of a patient in whom portal hypertension manifested as bleeding gastric polyps leading to transfusion-dependent iron deficiency anemia. PMID:26157923

  4. How outcomes are achieved through patient portals: a realist review.

    PubMed

    Otte-Trojel, Terese; de Bont, Antoinette; Rundall, Thomas G; van de Klundert, Joris

    2014-01-01

    To examine how patient portals contribute to health service delivery and patient outcomes. The specific aims were to examine how outcomes are produced, and how variations in outcomes can be explained. We used a realist review method, which aims to describe how 'an intervention works, for whom, and in what circumstances' by analyzing patterns between context, mechanism, and outcomes. We reviewed 32 evaluation studies of patient portals published since 2003. The reviewed evaluations indicate that as a complement to existing health services, patient portals can lead to improvements in clinical outcomes, patient behavior, and experiences. Four different mechanisms are reported to yield the reported outcome improvements. These are patient insight into personal health information, activation of information, interpersonal continuity of care, and service convenience. The vast majority of evaluations were conducted in integrated health service networks in the USA, and we detected no substantial variation in outcomes across these networks. Patient portals may impact clinical outcomes and health service delivery through multiple mechanisms. Given the relative uniformity of evaluation contexts, we were not able to detect patterns in how patient portals work in different contexts. Nonetheless, it appears from the overwhelming proportion of patient portal evaluations coming from integrated health service networks, that these networks provide more fertile contexts for patient portals to be effective. To improve the understanding of how patient portals work, future evaluations of patient portals should capture information about mechanisms and context that influence their outcomes. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  5. Brain processing of duodenal and portal glucose sensing.

    PubMed

    Boubaker, J; Val-Laillet, D; Guérin, S; Malbert, C-H

    2012-08-01

    Peripheral and central glucose sensing play a major role in the regulation of food intake. Peripheral sensing occurs at duodenal and portal levels, although the importance of these sensing sites is still controversial. The present study aimed to compare the respective influence of these sensing pathways on the eating patterns; plasma concentrations of glucose, insulin and glucagon-like peptide-1 (GLP-1); and brain activity in juvenile pigs. In Experiment 1, we characterised the changes in the microstructure as a result of a 30-min meal in eight conscious animals after duodenal or portal glucose infusion in comparison with saline infusion. In Experiment 2, glucose, insulin and GLP-1 plasma concentrations were measured during 2 h after duodenal or portal glucose infusions in four anaesthetised animals. In Experiment 3, single photon emission computed tomography brain imaging was performed in five anaesthetised animals receiving duodenal or portal glucose or saline infusions. Both duodenal and portal glucose decreased the amount of food consumed, as well as the ingestion speed, although this effect appeared earlier with the portal infusion. Significant differences of glucose and GLP-1 plasma concentrations between treatments were found at the moment of brain imaging. Both duodenal and portal glucose infusions activated the dorsolateral prefrontal cortex and primary somatosensory cortex. Only duodenal glucose infusion was able to induce activation of the prepyriform area, orbitofrontal cortex, caudate and putamen, as well as deactivation of the anterior prefrontal cortex and anterior entorhinal cortex, whereas only portal glucose infusion induced a significant activation of the insular cortex. We demonstrated that duodenal and portal glucose infusions led to the modulation of brain areas that are known to regulate eating behaviour, which probably explains the decrease of food intake after both stimulations. These stimulation pathways induced specific systemic and

  6. The BAOBAB data portal and DACCIWA database

    NASA Astrophysics Data System (ADS)

    Brissebrat, Guillaume; Belmahfoud, Nizar; Cloché, Sophie; Ferré, Hélène; Fleury, Laurence; Mière, Arnaud; Ramage, Karim

    2017-04-01

    In the framework of the African Monsoon Multidisciplinary Analyses (AMMA) programme, several tools have been developed in order to boost the data and information exchange between researchers from different disciplines: a user-friendly data management and dissemination system, quasi real-time display websites and a scientific paper exchange collaborative tool. The information system is enriched by past and ongoing projects (IMPETUS, FENNEC, ESCAPE, QweCI, ACASIS, DACCIWA...) addressing meteorology, atmospheric chemistry, hydrology, extreme events, health, adaptation of human societies... It is becoming a reference information system on environmental issues in West Africa: BAOBAB (Base Afrique de l'Ouest beyond AMMA Base). The projects include airborne, ground-based and ocean measurements, social science surveys, satellite data use, modelling studies and value-added product development. Therefore, the BAOBAB data portal enables to access a great amount and a large variety of data: - 250 local observation datasets, that have been collected by operational networks since 1850, long term monitoring research networks and intensive scientific campaigns; - 1350 outputs of a socio-economics questionnaire; - 60 operational satellite products and several research products; - 10 output sets of meteorological and ocean operational models and 15 of research simulations. Data documentation complies with metadata international standards, and data are delivered into standard formats. The data request interface takes full advantage of the database relational structure and enables users to elaborate multicriteria requests (period, area, property…). The BAOBAB data portal counts about 900 registered users, and 50 data requests every month. The databases and data portal have been developed and are operated jointly by SEDOO and ESPRI in France: http://baoab.sedoo.fr. The ongoing DACCIWA (Dynamics-Aerosol-Chemistry-Cloud Interactions over West Africa) project uses the BAOBAB portal to

  7. Radiation portal monitor system and method

    DOEpatents

    Morris, Christopher; Borozdin, Konstantin N.; Green, J. Andrew; Hogan, Gary E.; Makela, Mark F.; Priedhorsky, William C.; Saunders, Alexander; Schultz, Larry J.; Sossong, Michael J.

    2009-12-15

    A portal monitoring system has a cosmic ray charged particle tracker with a plurality of drift cells. The drift cells, which can be for example aluminum drift tubes, can be arranged at least above and below a volume to be scanned to thereby track incoming and outgoing charged particles, such as cosmic ray muons, whilst also detecting gamma rays. The system can selectively detect devices or materials, such as iron, lead, gold and/or tungsten, occupying the volume from multiple scattering of the charged particles passing through the volume and can also detect any radioactive sources occupying the volume from gamma rays emitted therefrom. If necessary, the drift tubes can be sealed to eliminate the need for a gas handling system. The system can be employed to inspect occupied vehicles at border crossings for nuclear threat objects.

  8. Impulsively started incompressible turbulent jet

    SciTech Connect

    Witze, P O

    1980-10-01

    Hot-film anemometer measurements are presented for the centerline velocity of a suddenly started jet of air. The tip penetration of the jet is shown to be proportional to the square-root of time. A theoretical model is developed that assumes the transient jet can be characterized as a spherical vortex interacting with a steady-state jet. The model demonstrates that the ratio of nozzle radius to jet velocity defines a time constant that uniquely characterizes the behavior and similarity of impulsively started incompressible turbulent jets.

  9. Tsunami.gov: NOAA's Tsunami Information Portal

    NASA Astrophysics Data System (ADS)

    Shiro, B.; Carrick, J.; Hellman, S. B.; Bernard, M.; Dildine, W. P.

    2014-12-01

    We present the new Tsunami.gov website, which delivers a single authoritative source of tsunami information for the public and emergency management communities. The site efficiently merges information from NOAA's Tsunami Warning Centers (TWC's) by way of a comprehensive XML feed called Tsunami Event XML (TEX). The resulting unified view allows users to quickly see the latest tsunami alert status in geographic context without having to understand complex TWC areas of responsibility. The new site provides for the creation of a wide range of products beyond the traditional ASCII-based tsunami messages. The publication of modern formats such as Common Alerting Protocol (CAP) can drive geographically aware emergency alert systems like FEMA's Integrated Public Alert and Warning System (IPAWS). Supported are other popular information delivery systems, including email, text messaging, and social media updates. The Tsunami.gov portal allows NOAA staff to easily edit content and provides the facility for users to customize their viewing experience. In addition to access by the public, emergency managers and government officials may be offered the capability to log into the portal for special access rights to decision-making and administrative resources relevant to their respective tsunami warning systems. The site follows modern HTML5 responsive design practices for optimized use on mobile as well as non-mobile platforms. It meets all federal security and accessibility standards. Moving forward, we hope to expand Tsunami.gov to encompass tsunami-related content currently offered on separate websites, including the NOAA Tsunami Website, National Tsunami Hazard Mitigation Program, NOAA Center for Tsunami Research, National Geophysical Data Center's Tsunami Database, and National Data Buoy Center's DART Program. This project is part of the larger Tsunami Information Technology Modernization Project, which is consolidating the software architectures of NOAA's existing TWC's into

  10. Development of Geospatial Map Based Election Portal

    NASA Astrophysics Data System (ADS)

    Gupta, A. Kumar Chandra; Kumar, P.; Vasanth Kumar, N.

    2014-11-01

    The Geospatial Delhi Limited (GSDL), a Govt. of NCT of Delhi Company formed in order to provide the geospatial information of National Capital Territory of Delhi (NCTD) to the Government of National Capital Territory of Delhi (GNCTD) and its organs such as DDA, MCD, DJB, State Election Department, DMRC etc., for the benefit of all citizens of Government of National Capital Territory of Delhi (GNCTD). This paper describes the development of Geospatial Map based Election portal (GMEP) of NCT of Delhi. The portal has been developed as a map based spatial decision support system (SDSS) for pertain to planning and management of Department of Chief Electoral Officer, and as an election related information searching tools (Polling Station, Assembly and parliamentary constituency etc.,) for the citizens of NCTD. The GMEP is based on Client-Server architecture model. It has been developed using ArcGIS Server 10.0 with J2EE front-end on Microsoft Windows environment. The GMEP is scalable to enterprise SDSS with enterprise Geo Database & Virtual Private Network (VPN) connectivity. Spatial data to GMEP includes delimited precinct area boundaries of Voters Area of Polling stations, Assembly Constituency, Parliamentary Constituency, Election District, Landmark locations of Polling Stations & basic amenities (Police Stations, Hospitals, Schools and Fire Stations etc.). GMEP could help achieve not only the desired transparency and easiness in planning process but also facilitates through efficient & effective tools for management of elections. It enables a faster response to the changing ground realities in the development planning, owing to its in-built scientific approach and open-ended design.

  11. Portal dosimetry for VMAT using integrated images obtained during treatment.

    PubMed

    Bedford, James L; Hanson, Ian M; Hansen, Vibeke Nordmark

    2014-02-01

    Portal dosimetry provides an accurate and convenient means of verifying dose delivered to the patient. A simple method for carrying out portal dosimetry for volumetric modulated arc therapy (VMAT) is described, together with phantom measurements demonstrating the validity of the approach. Portal images were predicted by projecting dose in the isocentric plane through to the portal image plane, with exponential attenuation and convolution with a double-Gaussian scatter function. Appropriate parameters for the projection were selected by fitting the calculation model to portal images measured on an iViewGT portal imager (Elekta AB, Stockholm, Sweden) for a variety of phantom thicknesses and field sizes. This model was then used to predict the portal image resulting from each control point of a VMAT arc. Finally, all these control point images were summed to predict the overall integrated portal image for the whole arc. The calculated and measured integrated portal images were compared for three lung and three esophagus plans delivered to a thorax phantom, and three prostate plans delivered to a homogeneous phantom, using a gamma index for 3% and 3 mm. A 0.6 cm(3) ionization chamber was used to verify the planned isocentric dose. The sensitivity of this method to errors in monitor units, field shaping, gantry angle, and phantom position was also evaluated by means of computer simulations. The calculation model for portal dose prediction was able to accurately compute the portal images due to simple square fields delivered to solid water phantoms. The integrated images of VMAT treatments delivered to phantoms were also correctly predicted by the method. The proportion of the images with a gamma index of less than unity was 93.7% ± 3.0% (1SD) and the difference between isocenter dose calculated by the planning system and measured by the ionization chamber was 0.8% ± 1.0%. The method was highly sensitive to errors in monitor units and field shape, but less sensitive to

  12. Variations in Patient Portal Adoption in Four Primary Care Practices

    PubMed Central

    Wald, Jonathan S.

    2010-01-01

    This case report reviews the patient portal adoption experiences of four primary care practices at Partners HealthCare during 2002 – 2009. Although each practice used the enterprise patient portal (Patient Gateway) and electronic health record, their patient enrollments varied substantially, as did their marketing approaches, new feature adoption, leadership approach, and staff involvement. Marketing limitations, leadership concerns, and limited staff engagement characterized the low-enrollment practices, but not the others. These factors, along with other practice characteristics such as location and patient demographics, should be explored in future research to identify best practices for successful adoption of a patient portal. PMID:21347096

  13. Posttransplant bilioportal fistula with portal vein thrombosis: a case report.

    PubMed

    Kasahara, M; Sakamoto, S; Fukuda, A; Shigeta, T; Tanaka, H; Mastuno, N; Hashimoto, M; Kondo, Y; Nosaka, S; Nakazawa, A

    2010-11-01

    An 8-year-old female patient, known to have post-Kasai biliary atresia with mild intrapulmonary shunting, underwent living donor liver transplantation because of recurrent cholangitis. After the treatment of postoperative biliary stricture with percutaneous transhepatic biliary drainage, the patient subsequently developed hematochezia with portal vein thrombosis. The intraoperative findings showed portal vein thrombosis with a bilioportal fistula. We performed closure of the bilioportal fistula and reconstruction of the portal vein with a native internal jugular vein interposition graft. A bilioportal fistula due to percutaneous hepatobiliary procedures is a reportedly a rare complication following liver transplantation. The patient is currently doing well after a successful surgical intervention.

  14. Duodenal obstruction due to a preduodenal portal vein.

    PubMed

    Vilakazi, Mnc; Ismail, F; Swanepoel, H M; Muller, E W; Lockhat, Z I

    2014-01-01

    An infant presented with clinical signs and symptoms suggestive of a pyloric stenosis. On abdominal ultrasound, pyloric stenosis was excluded, and other causes for proximal duodenal obstruction, such as a duodenal web or annular pancreas, were suspected. At surgery, the cause was found to be due to an anterior portal vein or preduodenal portal vein, compressing the duodenum. There were no associated findings such as midgut malrotation, duodenal web and congenital anomalies. The treatment was a diamond-shaped duodeno-duodenostomy anterior to the portal vein. The patient improved after surgery.

  15. Portal Tools for Targeting Climate Information Users: The NIDIS Experience

    NASA Astrophysics Data System (ADS)

    Owen, T.; Brewer, M.

    2008-12-01

    Translation of scientific information for targeted user groups is a critical challenge facing the development of any comprehensive climate services framework. This talk explores the lessons learned from the development of a National Integrated Drought Information System (NIDIS) portal (drought.gov) to this end. The NIDIS portal focuses on communities of shared user interest, distinct tabular and map-based data accessibility pathways, and the judicious use of database crawlers to incorporate new and emerging data and information. These foci are informing the development of a climate services portal within NOAA scheduled for initial release in 2009.

  16. [PIV: a computer-aided portal image verification system].

    PubMed

    Fu, Weihua; Zhang, Hongzhi; Wu, Jing

    2002-12-01

    Portal image verification (PIV) is one of the key actions in QA procedure for sophisticated accurate radiotherapy. The purpose of this study was to develop a PIV software as a tool for improving the accuracy and visualization of portal field verification and computing field placement errors. PIV was developed in the visual C++ integrated environment under Windows 95 operating system. It can improve visualization by providing tools for image processing and multimode images display. Semi-automatic register methods make verification more accurate than view-box method. It can provide useful quantitative errors for regular fields. PIV is flexible and accurate. It is an effective tool for portal field verification.

  17. Portal dosimetry for VMAT using integrated images obtained during treatment

    SciTech Connect

    Bedford, James L. Hanson, Ian M.; Hansen, Vibeke Nordmark

    2014-02-15

    Purpose: Portal dosimetry provides an accurate and convenient means of verifying dose delivered to the patient. A simple method for carrying out portal dosimetry for volumetric modulated arc therapy (VMAT) is described, together with phantom measurements demonstrating the validity of the approach. Methods: Portal images were predicted by projecting dose in the isocentric plane through to the portal image plane, with exponential attenuation and convolution with a double-Gaussian scatter function. Appropriate parameters for the projection were selected by fitting the calculation model to portal images measured on an iViewGT portal imager (Elekta AB, Stockholm, Sweden) for a variety of phantom thicknesses and field sizes. This model was then used to predict the portal image resulting from each control point of a VMAT arc. Finally, all these control point images were summed to predict the overall integrated portal image for the whole arc. The calculated and measured integrated portal images were compared for three lung and three esophagus plans delivered to a thorax phantom, and three prostate plans delivered to a homogeneous phantom, using a gamma index for 3% and 3 mm. A 0.6 cm{sup 3} ionization chamber was used to verify the planned isocentric dose. The sensitivity of this method to errors in monitor units, field shaping, gantry angle, and phantom position was also evaluated by means of computer simulations. Results: The calculation model for portal dose prediction was able to accurately compute the portal images due to simple square fields delivered to solid water phantoms. The integrated images of VMAT treatments delivered to phantoms were also correctly predicted by the method. The proportion of the images with a gamma index of less than unity was 93.7% ± 3.0% (1SD) and the difference between isocenter dose calculated by the planning system and measured by the ionization chamber was 0.8% ± 1.0%. The method was highly sensitive to errors in monitor units and

  18. Portal dosimetry for VMAT using integrated images obtained during treatment

    SciTech Connect

    Bedford, James L. Hanson, Ian M.; Hansen, Vibeke Nordmark

    2014-02-15

    Purpose: Portal dosimetry provides an accurate and convenient means of verifying dose delivered to the patient. A simple method for carrying out portal dosimetry for volumetric modulated arc therapy (VMAT) is described, together with phantom measurements demonstrating the validity of the approach. Methods: Portal images were predicted by projecting dose in the isocentric plane through to the portal image plane, with exponential attenuation and convolution with a double-Gaussian scatter function. Appropriate parameters for the projection were selected by fitting the calculation model to portal images measured on an iViewGT portal imager (Elekta AB, Stockholm, Sweden) for a variety of phantom thicknesses and field sizes. This model was then used to predict the portal image resulting from each control point of a VMAT arc. Finally, all these control point images were summed to predict the overall integrated portal image for the whole arc. The calculated and measured integrated portal images were compared for three lung and three esophagus plans delivered to a thorax phantom, and three prostate plans delivered to a homogeneous phantom, using a gamma index for 3% and 3 mm. A 0.6 cm{sup 3} ionization chamber was used to verify the planned isocentric dose. The sensitivity of this method to errors in monitor units, field shaping, gantry angle, and phantom position was also evaluated by means of computer simulations. Results: The calculation model for portal dose prediction was able to accurately compute the portal images due to simple square fields delivered to solid water phantoms. The integrated images of VMAT treatments delivered to phantoms were also correctly predicted by the method. The proportion of the images with a gamma index of less than unity was 93.7% ± 3.0% (1SD) and the difference between isocenter dose calculated by the planning system and measured by the ionization chamber was 0.8% ± 1.0%. The method was highly sensitive to errors in monitor units and

  19. The romanesque marble portals of Schloss Tirol/Italy

    NASA Astrophysics Data System (ADS)

    Recheis, A.; Bidner, Th.; Hauser, W.; Mirwald, P. W.

    2003-04-01

    Marble artifacts are confronted with two kinds of problems: i) weathering, which is a task for material conservation research, ii) unclear provenance which creates problems with respect to historical interpretations. An art historically very prominent example are the two romanesque marble portals of Schloß Tyrol/ South Tyrol/Italy, the Palas portal at the entrance sheltered by a canopy and the Chapel portal leading directly from the palas hall into the chapel. Stilistic criteria and historical sources date them into the 12th century (1). The performed study concerned a detailed macroscopic mapping and ultrasonic work (2) as well as petrographical and chemical investigations on some very small drill core samples. The map-ping and ultrasonic work revealed that the Palas portal is significantly more weathered and damaged than the chapel portal. At first glance this finding seems consistent with the location of the objects. However, even if a reported period of some 120 years of unsheltered free exposure of the Palas portal after its construction is taken into account, the weathering impacts are too severe (5). A fire catastrophy documented around 1300 might be considered the relevant damage event. This again sheds some light on the specific history of the well preserved Chapel portal: stylistically both portals are contemporaneous, so one may assume that it had been taken from another locality and was built in later. A potential candidate for this is a karolingian church (7-8th century) outside the castle-complex of which the relics have been excavated recently. This picture is substantiated by the results of the material investigations (grain size, chemistry and C, O isotopes (3)) suggesting different provenance of the marbles of the two portals. Comparative studies on the regional marbles speak in favour for Laas Marble for the Palas portal and Sterzing Marble for the Chapel portal (4). The study is continued with a detailed investigation on the supposed fire

  20. 3. East portal of Tunnel 27, view to northeast from ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. East portal of Tunnel 27, view to northeast from atop cut bank, 210mm lens. This view shows to good effect the original construction of the Harriman period tunnels, which were concreted fifty feet in from the portals with the balance being timber lined. In 1965 the east end of the tunnel collapsed, with the result that approximately 115 feet of the east end was 'daylighted' and the original east portal and concreted end were left in place, free-standing as seen here. - Central Pacific Transcontinental Railroad, Tunnel No. 27, Milepost 133.9, Applegate, Placer County, CA

  1. Head Start Planned Variation Program.

    ERIC Educational Resources Information Center

    Klein, Jenny

    There is little agreement concerning which methods of preschool intervention are most effective. In order to evaluate several approaches to early childhood education, Project Head Start, in conjunction with Project Follow Through, has initiated the Planned Variation program. This year only a pilot project is underway with eight schools…

  2. Employment Obtaining and Business Starting

    ERIC Educational Resources Information Center

    Lan, Jian

    2009-01-01

    The implementation of business starting education in higher vocational colleges is of important and realistic meanings for cultivating advanced technology application-type talents and for releasing the employment obtaining pressure of higher vocational students. Based on the analysis on the employment situation of higher vocational graduates, this…

  3. Near Field of Starting Plumes

    NASA Astrophysics Data System (ADS)

    Johari, H.; Gharib, M.; Dabiri, D.

    1997-11-01

    Although steady jets and plumes have been studied extensively in the past, there is relatively little known about the initial stages of starting buoyant jets. The present investigation examined buoyancy-driven flows resulting from cylindrical containers w ith length to diameter ratios (L/D) between 2 and 13. Density ratios up to ten percent were utilized. A technique was developed to release the column of buoyant fluid with minimal disturbance during the discharge. Our observations indicate that the majori ty of the released fluid gets entrained into the starting vortex ring for L/D < 4. Longer columns result in a jet trailing behind the starting vortex. In all cases, the starting vortex ring becomes unstable as a result of the baroclinic torque generation around its perimeter, and disintegrates into a turbulent mass within the first 5 diameters. This fluid mass then gets reorganized into a larger, more diffuse thermal. The thermal formation occurs closer to the source as the length to diameter ratio of th e buoyant column gets smaller. The temporal evolution of the circulation associated with the buoyant fluid, which was derived from the digital particle image velocimetry technique, will be presented.

  4. Rigor Made Easy: Getting Started

    ERIC Educational Resources Information Center

    Blackburn, Barbara R.

    2012-01-01

    Bestselling author and noted rigor expert Barbara Blackburn shares the secrets to getting started, maintaining momentum, and reaching your goals. Learn what rigor looks like in the classroom, understand what it means for your students, and get the keys to successful implementation. Learn how to use rigor to raise expectations, provide appropriate…

  5. Rigor Made Easy: Getting Started

    ERIC Educational Resources Information Center

    Blackburn, Barbara R.

    2012-01-01

    Bestselling author and noted rigor expert Barbara Blackburn shares the secrets to getting started, maintaining momentum, and reaching your goals. Learn what rigor looks like in the classroom, understand what it means for your students, and get the keys to successful implementation. Learn how to use rigor to raise expectations, provide appropriate…

  6. Head Start Families Sharing Literature

    ERIC Educational Resources Information Center

    Green, Connie R.; Halsall, Sharen W.

    2004-01-01

    The purpose of this research was to ascertain the types of books read by Head Start families to their children, conditions for reading aloud at home, perceived benefits of reading aloud, and children's responses to books. Data were collected from parent interviews and reading logs. Participants included 14 children and families from four Head…

  7. Multiple Perspectives on Starting Right.

    ERIC Educational Resources Information Center

    Katz, Lilian G.

    This paper addresses multiple perspectives on the quality of early childhood care and education, including lessons learned from programs in various countries, the implications of these perspectives, and recommendations for the improvement of early childhood provision. It also examines the ideas expressed in the 1994 "Start Right" report on early…

  8. Kids Get a Smart Start.

    ERIC Educational Resources Information Center

    Hoffman, Carl

    1996-01-01

    Under the Smart Start program, 19 of North Carolina's Appalachian counties have qualified for competitive state funding to improve community services to young children and their families. Programs tailored to local needs provide subsidized child care to children of working parents, preventive health screenings, literacy and high school equivalency…

  9. Head Start Dental Health Curriculum.

    ERIC Educational Resources Information Center

    Administration for Children, Youth, and Families (DHHS), Washington, DC. Head Start Bureau.

    This curriculum for Head Start programs provides preschool learning experiences that teach about dental health. The majority of the curriculum guide is devoted to the following lesson plans: (1) "Introduction of 'Smiley the Super Pup'," an optional puppet character which may be used to review the concepts covered in each lesson; (2)…

  10. Entrepreneur Training Program. Getting Started.

    ERIC Educational Resources Information Center

    De Maria, Richard

    This student workbook on starting a small business is part of the entrepreneur training program at Ocean County (New Jersey) Vocational-Technical Schools. The workbook consists of 16 units containing goals and objectives, study questions, exercises, sample materials, and information sheets. Unit topics are as follows: being a small business owner;…

  11. Off to a Good Start.

    ERIC Educational Resources Information Center

    Hoffman, Carl

    1994-01-01

    Caring Start is a mobile-clinic program that provides prenatal care, well-baby clinics, childhood immunizations, counseling services, and contraceptives to rural poor families in northwest Pennsylvania. Before the mobile clinic, many rural women (mostly teenagers) went without prenatal health care due to lack of transportation. (LP)

  12. Start Where Your Students Are

    ERIC Educational Resources Information Center

    Jackson, Robyn R.

    2010-01-01

    Starting where your students are means understanding how currencies are negotiated and traded in the classroom. Any behavior that students use to acquire the knowledge and skills needed in the classroom functions as currency. Teachers communicate the kinds of currencies they accept in their classrooms, such as getting good grades; students do…

  13. Single-Portal Versus Two-Portal Knee Arthroscopy: First Clinical Experience With a New Surgical Technique.

    PubMed

    Cooper, Daniel E

    2016-01-01

    This pilot study compared efficacy, morbidity, and complication rates with a new single-portal arthroscopy technique and traditional 2-portal knee arthroscopy. This prospective study evaluated 156 patients who underwent arthroscopic knee surgery, 106 with 2 portals and a traditional arthroscope and instruments and 50 with a single portal and newly designed arthroscopy instruments. Patients who had reconstructive procedures, microfractures, lateral release procedures, advanced osteoarthritis, and revision surgery were excluded, as were obese patients. The same surgeon performed all procedures, and the patient groups had no significant differences in sex, age, types of pathology, surgical treatment, medications given, or rehabilitation protocol. All patients were examined and completed questionnaires 1 week, 1 month, and 3 months postoperatively. The surgeon was blinded to the data. Follow-up was 100%. The single-portal technique was technically feasible for treatment of knee pathology in 49 of 50 patients. The 2-portal technique provided adequate treatment of knee pathology in all 106 cases. No difference was reported in pain level in the recovery room or on postoperative day 2. However, patients in the single-portal group reported less pain on day 4 (P=.04) and day 7 (P=.004) and were less likely to use oral narcotic analgesics (P=.0001). The single-portal group reported better function in activities of daily living at 1 month and less interference with sports participation at 3 months. Complication rates were no different in the 2 groups. The findings showed that the single-portal technique improved functional recovery at 1 month and 3 months postoperatively and may result in less morbidity in some parameters.

  14. Use of autogenous saphenous vein as a conduit for mesenterico-left portal vein bypass.

    PubMed

    Query, Julie A; Sandler, Anthony D; Sharp, William J

    2007-06-01

    The authors describe a case of extrahepatic portal vein (EHPV) thrombosis and portal hypertension treated with a variant of mesenterico-left portal vein bypass (MLPVB) or Rex shunt. In this case, a segment of autogenous greater saphenous vein was used to bridge the distance between the left gastric vein inflow and the left portal vein. Use of such nontraditional conduit in similar circumstances may expand the application of portal revascularization/decompression procedures in treating these patients.

  15. 7. EAST PORTAL OF CONCRETE LINED CULVERT LOCATED 30 YARDS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. EAST PORTAL OF CONCRETE LINED CULVERT LOCATED 30 YARDS WEST OF HAPPY ISLES BRIDGE. NOTE ROCK & CONCRETE FLOOR. - Happy Isles Bridge, Spanning Merced River on Service road, Yosemite Village, Mariposa County, CA

  16. B & P Tunnel west portal. Baltimore, Baltimore City, MD. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    B & P Tunnel west portal. Baltimore, Baltimore City, MD. Sec. 1201, MP 97.43. - Northeast Railroad Corridor, Amtrak route between District of Columbia/Maryland state line & Maryland/Delaware state line, Baltimore, Independent City, MD

  17. B & P Tunnel east portal & North Avenue Bridge. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    B & P Tunnel east portal & North Avenue Bridge. Baltimore, Baltimore City, MD. Sec. 1201, MP 96.00. - Northeast Railroad Corridor, Amtrak route between District of Columbia/Maryland state line & Maryland/Delaware state line, Baltimore, Independent City, MD

  18. 2. VIEW OF EAST PORTAL, FACING WEST. FORMER PARKING AREA ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. VIEW OF EAST PORTAL, FACING WEST. FORMER PARKING AREA TO LEFT OF WALL NOW RE-LANDSCAPED. - Big Oak Flat Road Tunnel No. 3, Through mountain spur on New Big Oak Flat Road, Yosemite Village, Mariposa County, CA

  19. 3. VIEW OF WEST PORTAL. SAME POSITION AS NO. 1 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. VIEW OF WEST PORTAL. SAME POSITION AS NO. 1 SHOWING RETAINING WALL BELOW ROAD. - Big Oak Flat Road Tunnel No. 1, Through mountain spur on New Big Oak Flat Road, Yosemite Village, Mariposa County, CA

  20. Integrating Space Communication Network Capabilities via Web Portal Technologies

    NASA Technical Reports Server (NTRS)

    Johnston, Mark D.; Lee, Carlyn-Ann; Lau, Chi-Wung; Cheung, Kar-Ming; Levesque, Michael; Carruth, Butch; Coffman, Adam; Wallace, Mike

    2014-01-01

    We have developed a service portal prototype as part of an investigation into the feasibility of using Java portlet technology as a means of providing integrated access to NASA communications network services. Portal servers provide an attractive platform for this role due to the various built-in collaboration applications they can provide, combined with the possibility to develop custom inter-operating portlets to extent their functionality while preserving common presentation and behavior. This paper describes various options for integration of network services related to planning and scheduling, and results based on use of a popular open-source portal framework. Plans are underway to develop an operational SCaN Service Portal, building on the experiences reported here.

  1. Assay Portal | Office of Cancer Clinical Proteomics Research

    Cancer.gov

    The CPTAC Assay Portal serves as a centralized public repository of "fit-for-purpose," multiplexed quantitative mass spectrometry-based proteomic targeted assays. Targeted proteomic assays eliminate issues that are commonly observed using conventional protein detection systems.

  2. 35. South entrance house portal, caretaker's house cupola, cast iron ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    35. South entrance house portal, caretaker's house cupola, cast iron balustrade, cast iron fence (Graff Memorial), wrought iron fence - Fairmount Waterworks, East bank of Schuylkill River, Aquarium Drive, Philadelphia, Philadelphia County, PA

  3. SHENANDOAHDIVES (MAYFLOWER) MINE PORTAL SITE, LOOKING WEST. NOTE FOUNDATION AT ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    SHENANDOAH-DIVES (MAYFLOWER) MINE PORTAL SITE, LOOKING WEST. NOTE FOUNDATION AT RIGHT AND RADIATOR AT LOWER LEFT, BOTH REMNANTS OF THE DORMITORY. - Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, CO

  4. 3. DETAIL OF TRUSS PANELS AND INCLINED PORTAL MEMBER AT ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. DETAIL OF TRUSS PANELS AND INCLINED PORTAL MEMBER AT THE SOUTHEAST ENTRANCE TO THE BRIDGE, LOOKING WEST. - Chicago, Madison & Northern Railroad, Sanitary & Ship Canal Bridge, Spanning Sanitary & Ship Canal, east of Kedzie Avenue, Chicago, Cook County, IL

  5. 2. PORTAL VIEW OF BRIDGE FROM NORTH SIDE OF SANITARY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. PORTAL VIEW OF BRIDGE FROM NORTH SIDE OF SANITARY AND SHIP CANAL, LOOKING SOUTHEAST. - Chicago, Madison & Northern Railroad, Sanitary & Ship Canal Bridge, Spanning Sanitary & Ship Canal, east of Kedzie Avenue, Chicago, Cook County, IL

  6. Popular Tasks in the ForeSee Portal

    EPA Pesticide Factsheets

    Access the robust American Customer Satisfaction Index Portal to obtain information, such as search terms used by survey respondents, satisfaction by audience type, and responses to specific survey questions; and learn how to use various filters.

  7. 11. Detailed view of sign, portal strut, lattice work, and ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    11. Detailed view of sign, portal strut, lattice work, and diagonal eye-bars, (Nov. 30, 1988) - University Heights Bridge, Spanning Harlem River at 207th Street & West Harlem Road, New York County, NY

  8. The portals 4.0.1 network programming interface.

    SciTech Connect

    Barrett, Brian W.; Brightwell, Ronald Brian; Pedretti, Kevin; Wheeler, Kyle Bruce; Hemmert, Karl Scott; Riesen, Rolf E.; Underwood, Keith Douglas; Maccabe, Arthur Bernard; Hudson, Trammell B.

    2013-04-01

    This report presents a specification for the Portals 4.0 network programming interface. Portals 4.0 is intended to allow scalable, high-performance network communication between nodes of a parallel computing system. Portals 4.0 is well suited to massively parallel processing and embedded systems. Portals 4.0 represents an adaption of the data movement layer developed for massively parallel processing platforms, such as the 4500-node Intel TeraFLOPS machine. Sandias Cplant cluster project motivated the development of Version 3.0, which was later extended to Version 3.3 as part of the Cray Red Storm machine and XT line. Version 4.0 is targeted to the next generation of machines employing advanced network interface architectures that support enhanced offload capabilities. 3

  9. The Portals 4.0 network programming interface.

    SciTech Connect

    Barrett, Brian W.; Brightwell, Ronald Brian; Pedretti, Kevin; Wheeler, Kyle Bruce; Hemmert, Karl Scott; Riesen, Rolf E.; Underwood, Keith Douglas; Maccabe, Arthur Bernard; Hudson, Trammell B.

    2012-11-01

    This report presents a specification for the Portals 4.0 network programming interface. Portals 4.0 is intended to allow scalable, high-performance network communication between nodes of a parallel computing system. Portals 4.0 is well suited to massively parallel processing and embedded systems. Portals 4.0 represents an adaption of the data movement layer developed for massively parallel processing platforms, such as the 4500-node Intel TeraFLOPS machine. Sandias Cplant cluster project motivated the development of Version 3.0, which was later extended to Version 3.3 as part of the Cray Red Storm machine and XT line. Version 4.0 is targeted to the next generation of machines employing advanced network interface architectures that support enhanced offload capabilities.

  10. 4. From Skew Span to portal on span 1 looking ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. From Skew Span to portal on span 1 looking up grade toward the south end. - Monongahela Connecting Railroad Company, Hot Metal Bridge, Spanning Monongahela River at mile post 3.1, Pittsburgh, Allegheny County, PA

  11. 7. SOUTH PORTAL. VIEW TO SOUTHSOUTHEAST Milwaukee Road Railroad ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. SOUTH PORTAL. VIEW TO SOUTH-SOUTHEAST - Milwaukee Road Railroad Overpass, Spanning Chicago, Milwaukee, St. Paul, & Pacific Railroad Grade (Milwaukee Road) at Orange Street, Missoula, Missoula County, MT

  12. The Integrated Web Portal for Escalation with Overdose Control (EWOC).

    PubMed

    Wang, Haibin; Tighiouart, Mourad; Huang, Shao-Chi; Berel, Dror; Cook-Wiens, Galen; Bresee, Catherine; Li, Quanlin; Rogatko, André

    2013-01-01

    In this paper, we present the design and implementation of a novel web portal for the cancer phase I clinical trial design method Escalation with Overdose Control (EWOC). The web portal has two major components: a web-based dose finding calculator; and a standalone and downloadable dose finding software which can be installed on Windows operating systems. The web-based dose finding calculator uses industry standards and is a database-driven and distributed computing platform for designing and conducting dose finding in cancer phase I clinical trials utilizing EWOC methodology. The web portal is developed using open source software: PHP, JQuery, R and OpenBUGS. It supports any standard browsers with internet connection. The web portal can be accessed at: http://biostatistics.csmc.edu.

  13. 9. OBLIQUE VIEW, NORTH PORTAL AND TIMBER DECK, FROM NORTHWEST, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    9. OBLIQUE VIEW, NORTH PORTAL AND TIMBER DECK, FROM NORTHWEST, SHOWING INCLINED ENDPOSTS, OVERHEAD BRACING, VERTICALS OF EASTTRUSS PANELS, EAST RAILING, AND TRANSVERSE DECK PLANKS - River Road Bridge, Crossing Casselman River on Casselman River Road, Grantsville, Garrett County, MD

  14. 46. View of access portal holes drilled to place steel ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    46. View of access portal holes drilled to place steel ties in Pleasant Dam buttresses. Photographer unknown, 1935. Source: Huber Collection. - Waddell Dam, On Agua Fria River, 35 miles northwest of Phoenix, Phoenix, Maricopa County, AZ

  15. Outsourcing the Portal: Another Branch in the Decision Tree.

    ERIC Educational Resources Information Center

    McMahon, Tim

    2000-01-01

    Discussion of the management of information resources in organizations focuses on the use of portal technologies to update intranet capabilities. Considers application outsourcing decisions, reviews benefits (including reducing costs) as well as concerns, and describes application service providers (ASPs). (LRW)

  16. 7. NORTH WEB AND WEST PORTAL. VIEW TO SOUTHEAST FROM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. NORTH WEB AND WEST PORTAL. VIEW TO SOUTHEAST FROM BLAIR RAILROAD BRIDGE. - Abraham Lincoln Memorial Bridge, Spanning Missouri River on Highway 30 between Nebraska & Iowa, Blair, Washington County, NE

  17. 15. SOUTH WEB AND WEST PORTAL OF MIDDLE THROUGH TRUSS. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. SOUTH WEB AND WEST PORTAL OF MIDDLE THROUGH TRUSS. VIEW TO NORTHEAST. - Abraham Lincoln Memorial Bridge, Spanning Missouri River on Highway 30 between Nebraska & Iowa, Blair, Washington County, NE

  18. View from western bridge portal along entrance road, softball fields ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View from western bridge portal along entrance road, softball fields to right and hospital complex in distance - New York State Soldiers & Sailors Home, Department of Veterans Affairs Medical Center, 76 Veterans Avenue, Bath, Steuben County, NY

  19. 6. Detail, vertical guides adjacent to east portal of Tunnel ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. Detail, vertical guides adjacent to east portal of Tunnel 28, view to southwest, 135mm lens with electronic flash fill. - Central Pacific Transcontinental Railroad, Tunnel No. 28, Milepost 134.75, Applegate, Placer County, CA

  20. 7. Detail, machinery shed atop east portal of Tunnel 28, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. Detail, machinery shed atop east portal of Tunnel 28, showing shaft and pulley system, 210mm lens with electronic flash fill. - Central Pacific Transcontinental Railroad, Tunnel No. 28, Milepost 134.75, Applegate, Placer County, CA