Sample records for outpatient barium enema

  1. Barium enema

    MedlinePLUS

    Barium enema is a special x-ray of the large intestine, which includes the colon and rectum. ... to a bag that holds a liquid containing barium sulfate. This is a contrast material that highlights ...

  2. Barium enema (image)

    MedlinePLUS

    A barium enema is performed to examine the walls of the colon. During the procedure, a well lubricated enema tube is inserted gently into the rectum. The barium, a radiopaque (shows up on X-ray) contrast ...

  3. 21 CFR 201.304 - Tannic acid and barium enema preparations.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Tannic acid and barium enema preparations. 201...Specific Drug Products § 201.304 Tannic acid and barium enema preparations. (a) It has become a widespread practice for tannic acid to be added to barium enemas to...

  4. 21 CFR 201.304 - Tannic acid and barium enema preparations.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Tannic acid and barium enema preparations. 201...Specific Drug Products § 201.304 Tannic acid and barium enema preparations. (a) It has become a widespread practice for tannic acid to be added to barium enemas to...

  5. 21 CFR 201.304 - Tannic acid and barium enema preparations.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 false Tannic acid and barium enema preparations. 201.304 Section...Products § 201.304 Tannic acid and barium enema preparations. (a) It has...practice for tannic acid to be added to barium enemas to improve X-ray...

  6. 21 CFR 201.304 - Tannic acid and barium enema preparations.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 false Tannic acid and barium enema preparations. 201.304 Section...Products § 201.304 Tannic acid and barium enema preparations. (a) It has...practice for tannic acid to be added to barium enemas to improve X-ray...

  7. 21 CFR 201.304 - Tannic acid and barium enema preparations.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2012-04-01 false Tannic acid and barium enema preparations. 201.304 Section...Products § 201.304 Tannic acid and barium enema preparations. (a) It has...practice for tannic acid to be added to barium enemas to improve X-ray...

  8. Relative sensitivity of colonoscopy and barium enema for detection of colorectal cancer in clinical practice

    Microsoft Academic Search

    DK Rex; EY Rahmani; JH Haseman; GT Lemmel; S Kaster; JS Buckley

    1997-01-01

    BACKGROUND & AIMS: The relative sensitivities of barium enema and colonoscopy for colorectal cancer are still debated. The aim of this study was to determine the relative sensitivity of barium enema and colonoscopy in general clinical practice. METHODS: Medical records of 2193 consecutive colorectal cancer cases identified in 20 central Indiana hospitals were reviewed. All procedures performed within 3 years

  9. DETECTION OF SMALL LESIONS OF THE LARGE BOWEL—Barium Enema Versus Double Contrast

    PubMed Central

    Robinson, J. Maurice

    1954-01-01

    Roentgen study with the so-called opaque barium enema with some modifications is superior to double contrast study as the primary means of demonstrating polyps in the colon as well as other lesions. The method described combines fluoroscopy, high kilovoltage radiography, fluoroscopically aimed “spot films” taken with compression, suction and evacuation studies. In this way unsuspected as well as suspected polyps can be demonstrated, particularly if attention is directed to the region where polyps are most likely to be found—namely, the distal third of the large bowel. Double contrast study is quite valuable as a supplement to the modified “single contrast” barium enema, but it has not been sufficiently perfected to replace the modified opaque barium enema as a primary procedure. In many instances a combination of methods will, of course, be required. PMID:13209360

  10. Phased surgical treatment of barium enema-induced rectal injury and retention of barium in the pelvic floor space

    PubMed Central

    Yang, Xuefei; Xia, Ligang; Huang, Jun; Wang, Jianping

    2014-01-01

    Iatrogenic injuries caused by barium enema are rarely reported. Following a phased surgical protocol for up to one year, we have successfully treated a patient with rectal injury and severe infection of the pelvic floor space complicated with retention of large amounts of barium and vaginal fistula. In this article, the phased surgery planning for the treatment of rectal injury complicated with vaginal fistula is discussed in terms of the pros and cons, and the observed effect and evolution of barium retained in the pelvic floor space are described. PMID:25405155

  11. Double contrast barium enema: technique, indications, results and limitations of a conventional imaging methodology in the MDCT virtual endoscopy era.

    PubMed

    Rollandi, Gian Andrea; Biscaldi, Ennio; DeCicco, Enzo

    2007-03-01

    The double contrast barium enema of the colon continues to be a diffused conventional radiological technique and allows for the diagnosis of neoplastic and inflammatory pathology. After the '70s, a massive initiative is undertaken to simplify, perfect and encode the method of the double contrast barium enema: Altaras from Germany, Miller from USA and Cittadini from Italy are responsible for the perfection of this technique in the last 30 years. The tailored patient preparation, a perfect technique of execution and a precise radiological documentation are essentials steps to obtain a reliable examination. The main limit of double contrast enema is that it considers the pathology only from the mucosal surface. In neoplastic pathology evaluation the main limit is the "T" parameter staging, but more limited are the "N" and "M" parameters evaluation. Today the double contrast technique continues to be a refined, sensitive and specific diagnostic method, moreover, diagnostic results cannot compete with the new CT multislice techniques (CT-enteroclysis and virtual colonoscopy) which can examine both the lumen and the wall of the colon. The double contrast is a cheap and simple examination but in the next future is predictably a progressive substitution of conventional radiology from new multislice techniques, because the cross sectional imaging is more frequently able to detect causes of the symptoms whether resulting both from colonic or non colonic origin. PMID:17161931

  12. Colorectal Carcinoma Missed on Double Contrast Barium Enema Study: A Problem in Perception

    Microsoft Academic Search

    Frederick M. Kelvin; Richard Gardiner; Wenzel Vas; Giles W. Stevenson

    52%, due to a combination of perceptive and technical factors in 32%, and interpreta- tive in 6%. The most common perceptive mistakes were failure to recognize a filling defect in the barium pool and failure to detect the tumor en face in double contrast study. Five cases were only detected at the time of the study as a result of

  13. The value of colonoscopy and double-contrast barium-enema examinations in the evaluation of patients with subacute and chronic lower intestinal bleeding

    SciTech Connect

    Thoeni, R.F. (Univ. of California, San Francisco); Venbrux, A.C.

    1983-03-01

    One hundred thirty six consecutive patients were examined with histories of guaiac positive stool examinations, bright red blood per rectum, or hematochezia to determine the value of the double-contrast barium-enema (DC-BE) examination and colonoscopy/proctoscopy in establishing bleeding sites. If examination findings were analyzed in conjunction with findings of visual examination of the anal area, the difference in the respective sensitivities of the two examinations was not statistically significant. If findings at the visual inspection were excluded, the DC-BE examination missed 45 of 155 proved bleeding sites (sensitivity, 71%) and 13 of 35 nonbleeding lesions (sensitivity for all lesions 70%), while colonoscopy missed 13 of 155 bleeding sites (sensitivity, 92%) and seven of 35 nonbleeding lesions (sensitivity for all lesions, 90%). The sensitivity of both methods was similar if all rectal and anal lesions were excluded. We conclude that colonoscopy is superior to the DC-BE examination in the detection of bleeding sites but similar in results to the DC-BE examination if lesions in the anal canal and rectum are excluded. The routine use of the DC-BE examination in patients with superficial lesions in the anal canal should be discouraged unless the patient has persistent bleeding or is 50 years old or older.

  14. Lower GI Series (Barium Enema)

    MedlinePLUS

    ... Application success rates, funding priorities, and trends Funding Process Tips for applicants; human subjects research information; grant review and management resources; and commonly used funding mechanisms, including diversity ...

  15. The use of water-soluble contrast enemas in the diagnosis of acute lower left quadrant peritonitis

    Microsoft Academic Search

    L. Gottesman; S. J. Zevon; G. W. Brabbee; T. Dailey; W. A. Wichern

    1984-01-01

    The traditional work-up of patients with lower left quadrant peritonitis often includes the eventual use of barium-enema radiography.\\u000a Diagnosis is usually delayed until adequate patient stabilization allows diagnostic contrast enemas. Delay of accurate diagnosis\\u000a may, at times, have serious clinical sequelae. The use of barium enema in acute lower left quadrant peritonitis has both theoretic\\u000a and actual disadvantages. These include

  16. Retrograde spread of 5-aminosalicylic acid enemas in patients with active ulcerative colitis

    SciTech Connect

    Campieri, M.; Lanfranchi, G.A.; Brignola, C.; Bazzocchi, G.; Gionchetti, P.; Minguzzi, M.R.; Cappello, I.P.; Corbelli, C.; Boschi, S.

    1986-02-01

    In an attempt to know the exact retrograde spread of high-dosage 5-aminosalicylic acid enemas, we have studied eight patients with active left-sided colitis, by adding a small amount of barium sulfate to the enemas and by checking the spread radiologically after 15 minutes, 1 hour, and 6 hours. Four grams of 5-aminosalicylic acid in 100-ml enemas and 4 gm in 200-ml enemas were used. The same experiment was repeated in a subsequent attack, with enemas labeled with technetium-99m and checked by scintiscans in five of these patients. We always have observed a volume-dependent spread of enemas but, interestingly, in the patients studied with technetium-99m there was always a wider spread than that which was detected with barium enemas. In all five patients, 100-ml enemas reached the splenic flexure. In two patients with total colitis, a progression of 100-ml technetium-99m enemas was performed in the transverse colon, but the maximum opacity remained in the left side. We can conclude that 4 gm of 5-aminosalicylic acid in 100-ml enemas can be suitable for treating patients with left-sided colitis, and will represent a valid addition for patients with more extensive colitis.

  17. Proper Management for Morbid Iatrogenic Retroperitoneal Barium Insufflation

    PubMed Central

    Vahedian-Ardakani, Jalal; Nazerani, Shahram; Saraee, Amir; Sarmast, Ali; Saraee, Ehsan

    2014-01-01

    A barium enema is a diagnostic and therapeutic procedure commonly used for colon and rectum problems. Rectal perforation with extensive intra- and/or extraperitoneal spillage of barium is a devastating complication of a barium enema that leads to a significant increase in patient mortality. Due to the low number of reported cases in recent scientific literature and the lack of experience with the management of these cases, we would like to present our treatment approach to a rare case of retroperitoneal contamination with barium, followed by its intraperitoneal involvement during a diagnostic barium enema. Our experience with long-term management of the patient and the good outcome will be depicted in this paper. PMID:25580416

  18. 21 CFR 876.5210 - Enema kit.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices § 876.5210 Enema kit. (a) Identification. An enema kit is a device...

  19. 21 CFR 876.5210 - Enema kit.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices § 876.5210 Enema kit. (a) Identification. An enema kit is a device...

  20. 21 CFR 876.5210 - Enema kit.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices § 876.5210 Enema kit. (a) Identification. An enema kit is a device...

  1. 21 CFR 876.5210 - Enema kit.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices § 876.5210 Enema kit. (a) Identification. An enema kit is a device...

  2. 21 CFR 876.5210 - Enema kit.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices § 876.5210 Enema kit. (a) Identification. An enema kit is a device...

  3. The malone antegrade continence enema

    Microsoft Academic Search

    D. M Griffiths; P. S Malone

    1995-01-01

    The previously reported Malone antegrade continence enema (MACE) was used in 21 children for intractable fecal incontinence or constipation. Twelve are completely clean, and three are much improved (71% success rate). However, only four of the 21 have not had some type of complication, either minor or major. Five of the 21 now have a colostomy, and one has abandoned

  4. CRC Screening With Double-Contrast Barium Enema

    Cancer.gov

    Skip to Main Content at the National Institutes of Health | www.cancer.gov Print Page E-mail Page Search: Please wait while this form is being loaded.... Home Browse by Resource Type Browse by Area of Research Research Networks Funding Information About

  5. SOURCE ASSESSMENT: MAJOR BARIUM CHEMICALS

    EPA Science Inventory

    This report summarizes data on air emissions from the production of major barium chemicals. Compounds studied include barium sulfide, barium carbonate, barium chloride, barium hydroxide, and barium sulfate. In order to evaluate potential environmental effects the source severity,...

  6. Antegrade continence enema (ACE): current practice.

    PubMed

    Sinha, Chandrasen Kumar; Grewal, Alka; Ward, Harry C

    2008-06-01

    The purpose of this study was to assess current status of antegrade continence enema (ACE) procedure taking into account the recent improvement in the technique and outcome. Reviewing our record of 48 patients with ACE procedure performed between January 2002 and May 2007, we found that the underlying diagnoses were idiopathic constipation in 56%, anorectal malformation in 31%, spina bifida in 8% and Hirschsprung's disease in 4%. Mean age of operation was 10.7 years. Appendix was used as stoma in 73% of cases. Stomal stenosis requiring revision was seen in 6% of cases and continence was achieved in 92% of cases. A systematic search of database was performed for the same period. Twenty-four studies describing 676 patients were found. The mean age was 10 years and various sites used for ACE were, right side of abdomen in 71%, umbilicus in 15% and left side of abdomen in 14%. The incidence of open and laparoscopic procedures were 87 and 13%, respectively. Appendix was used for stoma in 76% procedures. Other operative modalities were retubularised colon, retubularised ileum, caecal button and caecostomy tube, etc. The mean volume of enema fluid used was 516 ml. The mean evacuation time was 42 min. Stomal stenosis requiring revision was seen in 13% of cases. Continence was achieved in 93% of cases. There has been significant improvement in the outcome during last 5 years in comparison to the outcome published in late 1990s. Advancements in techniques, better-trained stoma care nurses and better stoma appliances could have played major role in this success. PMID:18408942

  7. Improvement in neurogenic bladder after the antegrade continence enema procedure

    Microsoft Academic Search

    Jacqueline Gividen; John G Van Savage

    2002-01-01

    A child with neurogenic bladder and bowel underwent an antegrade continence enema procedure for fecal incontinence and severe constipation. She subsequently demonstrated an improvement in her neurogenic bladder and urinary incontinence.

  8. Tapered terminal ileum conduit for antegrade continence enemas

    Microsoft Academic Search

    Gregory A. Surfield; David A. Andrews

    2005-01-01

    Antegrade continence enemas can be used to control fecal incontinence caused by neurogenic bowel. Creating a conduit can become\\u000a a problem when the appendix is unsuitable for use. This paper describes a procedure using a tapered terminal ileum conduit\\u000a for use with antegrade continence enemas in place of the appendix. This procedure has been attempted and successfully completed\\u000a on two

  9. Comparative trial of sodium cromoglycate enemas with prednisolone enemas in the treatment of ulcerative colitis.

    PubMed Central

    Grace, R H; Gent, A E; Hellier, M D

    1987-01-01

    A double blind multicentre study comparing sodium cromoglycate (600 mg/100 ml) by enema with prednisolone (20 mg/100 ml) by enema is reported. The study was conducted over a nine week period in the treatment of 70 patients with ulcerative colitis. Analysis of symptoms showed significant decreases in scores for patients in both groups, both at four and eight weeks; the only difference between the two groups was a significantly greater improvement in the reduction of rectal bleeding after four weeks in the prednisolone group. On sigmoidoscopy, both treatment groups showed a highly significant improvement after four and eight weeks with no significant differences being seen between the groups. Histology of the rectal biopsies showed a significant improvement in the inflammation of the mucosa for both treatment groups after four and eight weeks with no differences being observed between the groups. There were no significant changes in eosinophils from baseline and no difference between the groups at four and eight weeks. PMID:3102323

  10. [Outpatient emergencies].

    PubMed

    Rivallan, Armel; Le Nagard, Philippe

    2014-01-01

    The outpatient monitoring of patients sometimes involves emergency situations. In their practice, the nurses who visit the patient's home are confronted with the limits of their intervention. Faced with these delicate situations team coordination is a strength and the reactivity of the caregivers often contributes to a satisfactory outcome for the patient. PMID:24979919

  11. Durability of the Malone antegrade continence enema in pregnancy

    Microsoft Academic Search

    Francis J Wren; Carl T Reese; Ross M Decter

    2003-01-01

    The Malone antegrade continence enema (MACE) is a therapeutic option to treat chronic constipation and fecal incontinence in patients with neurogenic bowel. Previous reports have described the short-term success of this procedure, but no report has described the durability of the procedure during pregnancy. We present the case of a spinal cord injury patient who underwent an uncomplicated pregnancy after

  12. Reduction of radiation dose to patients undergoing barium enema by dose audit.

    PubMed

    Yu, S K; Cheung, Y K; Chan, T L; Kung, C M; Yuen, M K

    2001-02-01

    Nowadays, new fluoroscopic machines are usually equipped with a dose-area product (DAP) meter for dose measurement. In our hospital, DAP meters have been used in the Diagnostic Radiology Department for dose audit since June 1997. Demographic patient data, name of radiologist, fluoroscopic duration and DAP readings of every case were recorded by radiographers. In early 1999, questionnaires were distributed to radiologists who had performed fluoroscopic examinations during the auditing period. 23 radiologists with varying years of experience completed the questionnaire and their practice was analysed. Since familiarization with the examination technique would affect radiologists' practice, these radiologists were divided into two groups for analysis. Radiologists with less than 3 years of experience were grouped together as junior radiologists, whilst others were grouped as senior radiologists. Results of the questionnaire indicated that radiologists generally found DAP meters useful for dose evaluation in the process of technique refinement. Radiologists aware of being under continuous surveillance of their practice showed significant reduction of doses (junior radiologists 25%, p<0.005; senior radiologists 36%, p<0.05) and fluoroscopic times (junior radiologists 36%, p<0.001; senior radiologists 18%, p<0.05) compared with radiologists who were unaware that they were under surveillance but with similar radiological experience. This effect is believed to be because of increased awareness of radiation dose through audit. In addition, this "audit effect" may also affect junior radiologists in decision-making regarding the number of radiographs (p<0.05), but no effect was found for senior radiologists (p>0.5). PMID:11718389

  13. Analysis of air contrast barium enema, computed tomographic colonography, and colonoscopy: prospective comparison

    Microsoft Academic Search

    DC Rockey; E Paulson; D Niedzwiecki; W Davis; HB Bosworth; L Sanders; J Yee; J Henderson; P Hatten; S Burdick; A Sanyal; DT Rubin; M Sterling; G Akerkar; K Binmoeller; J Garvie; EJ Bini; K McQuaid; WL Foster; WM Thompson; A Dachman; R Halvorsen

    2005-01-01

    Findings 614 patients completed all three imaging tests. When analysed on a per-patient basis, for lesions 10 mm or larger in size (n=63), the sensitivity of ACBE was 48% (95% CI 35-61), CTC 59% (46-71, p=0·1083 for CTC vs ACBE), and colonoscopy 98% (91-100, p<0·0001 for colonoscopy vs CTC). For lesions 6-9 mm in size (n=116), sensitivity was 35% for

  14. Barium titanium glycolate: A new barium titanate powder precursor

    SciTech Connect

    Day, V.W.; Klemperer, W.G.; Payne, D.A. [Univ. of Nebraska, Lincoln, NE (United States)] [and others] [Univ. of Nebraska, Lincoln, NE (United States); and others

    1996-02-01

    This paper describes the synthesis and structure of a barium titanium glycolate complex and the calcination into barium titanate preceramic powders that sinter into polycrystalline, tetragonal barium titanate having good dielectric properties.

  15. Self-Administered Ethanol Enema Causing Accidental Death

    PubMed Central

    Peterson, Thomas; Rentmeester, Landen; Judge, Bryan S.; Cohle, Stephen D.; Jones, Jeffrey S.

    2014-01-01

    Excessive ethanol consumption is a leading preventable cause of death in the United States. Much of the harm from ethanol comes from those who engage in excessive or hazardous drinking. Rectal absorption of ethanol bypasses the first pass metabolic effect, allowing for a higher concentration of blood ethanol to occur for a given volume of solution and, consequently, greater potential for central nervous system depression. However, accidental death is extremely rare with rectal administration. This case report describes an individual with klismaphilia whose death resulted from acute ethanol intoxication by rectal absorption of a wine enema. PMID:25436159

  16. The Malone Antegrade Continence Enema for Neurogenic and Structural Fecal Incontinence and Constipation

    Microsoft Academic Search

    Martin A. Koyle; Devonna M. Kaji; Manuel Duque; Jodi Wild

    1995-01-01

    Problems of fecal elimination are commonly encountered by the pediatric urologist and surgeon. The Malone antegrade continence enema has been described as a means to administer a large volume enema via a continent catheterizable appendicocecostomy, resulting in reliable fecal elimination. Of 22 patients undergoing this procedure 16 reported total continence 4 months or longer after surgery. Complications are relatively minor

  17. Coffee Enema for Preparation for Small Bowel Video Capsule Endoscopy: A Pilot Study

    PubMed Central

    Kim, Eun Sun; Keum, Bora; Seo, Yeon Seok; Jeen, Yoon Tae; Lee, Hong Sik; Um, Soon Ho; Kim, Chang Duck; Ryu, Ho Sang

    2014-01-01

    Coffee enemas are believed to cause dilatation of bile ducts and excretion of bile through the colon wall. Proponents of coffee enemas claim that the cafestol palmitate in coffee enhances the activity of glutathione S-transferase, an enzyme that stimulates bile excretion. During video capsule endoscopy (VCE), excreted bile is one of the causes of poor preparation of the small bowel. This study aimed to evaluate the feasibility and effect of coffee enema for preparation of the small bowel during VCE. In this pilot study, 17 of 34 patients were assigned to the coffee enema plus polyethylene glycol (PEG) 2 L ingestion group, whereas the 17 remaining control patients received 2 L of PEG only. The quality of bowel preparation was evaluated in the two patient groups. Bowel preparations in the proximal segments of small bowel were not differ between two groups. In the mid and distal segments of the small intestine, bowel preparations tend to be better in patients who received coffee enemas plus PEG than in patients who received PEG only. The coffee enema group did not experience any complications or side effects. Coffee enemas may be a feasible option, and there were no clinically significant adverse events related to coffee enemas. More prospective randomized studies are warranted to improve small bowel preparation for VCE. PMID:25136541

  18. Barium ferrite permanent magnets

    Microsoft Academic Search

    I. Yu. Gershov

    1964-01-01

    1.We have selected and introduced the following optimum conditions for the preparation of isotropic barium ferrite magnets:a)Barium oxide content 15 ± 1%; b) kaolin content 1%; c) roasting of mixture of ferric oxide and barium salt at temperatures of 900–950‡ with five hours holding time; d) pressure during pressing 1.5–2 t\\/cm2; e) sintering of magnets at a temperature of 1160–1260‡

  19. Molecular Structure of Barium Chloride

    NSDL National Science Digital Library

    2002-08-15

    Barium Chloride was the byproduct of the discovery of radium by Madame Curie. When refining radium, the final separation resulted in barium chloride and radium chloride. Electrophoresis of barium chloride produces small-scale amounts of barium atom. This can be used for obtaining barium for commercial uses. Applications of barium chloride include stimulating the heart and other muscles for medicinal purposes, and also for softening water. Other uses of barium chloride include the manufacturing of barium salts, as pesticide, pigments, boiler detergent, in purifying sugar, as mordant in dyeing and printing textiles, and in the manufacture of caustic soda, polymers, and stabilizers.

  20. [A case of ischemic colitis presenting as bloody diarrhea after normal saline enema].

    PubMed

    Park, Ji Eun; Moon, Won; Nam, Ji Hyun; Kim, Nang Hee; Kim, Sung Hoon; Park, Moo In; Park, Seun Ja; Kim, Kyu Jong

    2007-08-01

    Ischemic colitis is a frequent disorder of large bowel in elderly persons or in debilitated patients with a variable underlying medical problems. Ischemic colitis may result from alterations in the systemic circulation or anatomic or functional changes in the local mesenteric vasculature. In most cases, no specific cause for the ischemic colitis is identified. Cases of ischemic colitis after enema for bowel cleansing have been rarely reported, but there has been no case report after normal saline enema. We report a case of ischemic colitis in a 72-year old patient with well-controlled hypertension, presenting as bloody diarrhea which developed after normal saline enema for preoperative bowel cleansing. PMID:17928757

  1. Withdrawal strategies for outpatients

    PubMed Central

    Mezciems, Edgar

    1996-01-01

    This article discusses outpatient withdrawal strategies for patients addicted to alcohol, benzodiazepines, barbiturates, and opiates and describes some practical ways to support recovery. PMID:8828877

  2. Barium Abundances in Cepheids

    E-print Network

    Andrievsky, S M; Korotin, S A; Luck, R E; Kovtyukh, V V; Maciel, W J

    2012-01-01

    We derived the barium atmospheric abundances for a large sample of Cepheids, comprising 270 stars. The sample covers a large range of galactocentric distances, from about 4 to 15 kpc, so that it is appropriated to investigate the existence of radial barium abundance gradients in the galactic disc. In fact, this is the first time that such a comprehensive analysis of the distribution of barium abundances in the galactic disc is carried out. As a result, we conclude that the Ba abundance distribution can be characterized by a zero gradient. This result is compared with derived gradients for other elements, and some reasons are briefly discussed for the independence of the barium abundances upon galactocentric distances.

  3. [Outpatient alcohol detoxification].

    PubMed

    Scherle, T; Croissant, B; Heinz, A; Mann, K

    2003-03-01

    Increasing significance is being attributed to outpatient detoxification treatment of alcohol-dependent patients. Many patients want to undergo outpatient detoxification or even carry it out without professional supervision. In some Scandinavian countries and in the USA, outpatient detoxification under medical supervision has increased substantially. In these countries,numerous studies describe outpatient alcohol detoxification as a safe and cost-reducing method. These studies vary in many aspects, especially regarding the nature and dose of the withdrawal medication, but also concerning the inclusion criteria of patients. Medications to treat or prevent alcohol withdrawal symptoms are rather heterogeneous. Besides well-known standard medication established in inpatient treatment (e.g.,benzodiazepines and carbamazepine), interesting studies report the application of rather uncommon substances such as physostigmine and psychotropic analgesic nitrous oxide (PAN) for alcohol detoxification. This article provides an overview on outpatient alcohol detoxification and discusses its transfer to practical application. PMID:12627236

  4. VU University Amsterdam Outpatient Scheduling

    E-print Network

    Bhulai, Sandjai

    Practitioner PEARL STAM #12;2 Outpatient scheduling Outpatient scheduling for a general practitioner .................................................................................................................................. 7 1.1.2 General Practitioner

  5. The antegrade continence enema procedure and total anorectal reconstruction

    PubMed Central

    Zbar, Andrew P.

    2014-01-01

    Patients may present with anal incontinence (AI) following repair of a congenital anorectal anomaly years previously, or require total anorectal reconstruction (TAR) following radical rectal extirpation, most commonly for rectal cancer. Others may require removal of their colostomy following sphincter excision for Fournier's gangrene, or in cases of severe perineal trauma. Most of the data pertaining to antegrade continence enema (the ACE or Malone procedure) comes from the pediatric literature in the management of children with AI, but also with supervening chronic constipation, where the quality of life and compliance with this technique appears superior to retrograde colonic washouts. Total anorectal reconstruction requires an anatomical or physical supplement to the performance of a perineal colostomy, which may include an extrinsic muscle interposition (which may or may not be ‘dynamized'), construction of a neorectal reservoir, implantation of an incremental artificial bowel sphincter or creation of a terminal, smooth-muscle neosphincter. The advantages and disadvantages of these techniques and their outcome are presented here. PMID:24759342

  6. Bile acid absorption from ileoanal pouches using enema scintigraphy.

    PubMed

    Bain, I M; Mostafa, A B; Harding, L K; Neoptolemos, J P; Keighley, M R

    1995-05-01

    It is unclear whether bile acid absorption is affected by ileoanal pouch construction. Bile acid absorption was measured in the abdomen of 16 patients with pouches (nine with good and seven with poor pouch function based on a clinical score) and in six patients with an end ileostomy using a radiolabelled synthetic bile acid (75SeHCAT) enema and dynamic scintigraphy. The median (interquartile range) 75SeHCAT absorption was 81 (79-87) per cent in patients with ileostomy, 46 (43-53) per cent in patients having well functioning pouches, and 24 (18-38) per cent in the group with poor pouch function (P < 0.01). Log transformation of the absorption curves revealed a two-component uptake (fast component t1/2 = 1.4-7.2 min; slow component t1/2 = 16-144 min) in all patients with ileostomy, in eight of nine patients with pouches with good function, and in one of seven patients with a poorly functioning pouch (P < 0.05); in the other six patients with poorly functioning pouches, only the slow component of absorption was present. This test showed significantly reduced bile acid absorption in patients with an ileoanal pouch and gave an objective discrimination between well and poorly functioning pouches. PMID:7613929

  7. Quantitative distribution of radiolabeled 5-aminosalicylic acid enemas in patients with left-sided ulcerative colitis

    SciTech Connect

    Vitti, R.A.; Meyers, F.; Knight, L.C.; Siegel, J.A.; Malmud, L.S.; Fisher, R.S. (Temple Univ. Hospital, Philadelphia, PA (USA))

    1989-11-01

    Rectally administered suspensions of 5-aminosalicylic acid (5-ASA) are topically effective in treating left-sided ulcerative colitis. The extent to which the contents of these enemas are distributed to inflamed mucosal linings has not previously been determined. This study was undertaken to validate a technique for labeling 5-ASA with 99mTc and to quantitate the distribution of (99mTc)5-ASA in eight patients with left-sided ulcerative colitis. Eight patients underwent three colonic scintigraphic exams within five days, receiving a 60-ml radiolabeled 5-ASA enema into the unprepared rectum for each study, with sequential anterior abdominal images obtained for 4 hr. Activity within the rectum, sigmoid, descending, transverse, and ascending colon was quantitated. Over 50% of the labeled enema had advanced beyond the rectum in five of eight patients and in six of eight patients by 30 min and 60 min, respectively. The distribution of (99mTc)5-ASA was quantitatively reproducible when repeated in the same patient on different days, despite apparent visual differences. By 2 hr, the amount of the enema present within the rectum decreased significantly (P less than 0.05) compared to the initial distribution. The amount of enema present within the descending colon was increased significantly at 0.5 hr (P less than 0.05) and at 2 hr (P less than 0.01). There were no significant changes in the distribution from initial values for the sigmoid, transverse, or ascending colon at any time. In each of these cases the spread of the enema to or beyond the extent of disease was documented. In patients with left-sided ulcerative colitis, small volume (99mTc)5-ASA enemas reliably reach the area of inflammation.

  8. Barium Ion Trapping Rebecca Schutzengel

    E-print Network

    Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

    Barium Ion Trapping Rebecca Schutzengel Franklin W. Olin College of Engineering University of Washington INT REU August 20, 2012 Rebecca Schutzengel Barium Ion Trapping August 20, 2012 1 / 12 #12;Uses for Ion Trapping Bell's Inequality tests Quantum Computing Rebecca Schutzengel Barium Ion Trapping August

  9. Observed Barium Emission Rates

    NASA Technical Reports Server (NTRS)

    Stenbaek-Nielsen, H. C.; Wescott, E. M.; Hallinan, T. J.

    1993-01-01

    The barium releases from the CRRES satellite have provided an opportunity for verifying theoretically calculated barium ion and neutral emission rates. Spectra of the five Caribbean releases in the summer of 1991 were taken with a spectrograph on board a U.S. Air Force jet aircraft. Because the line of sight release densities are not known, only relative rates could be obtained. The observed relative rates agree well with the theoretically calculated rates and, together with other observations, confirm the earlier detailed theoretical emission rates. The calculated emission rates can thus with good accuracy be used with photometric observations. It has been postulated that charge exchange between neutral barium and oxygen ions represents a significant source for ionization. If so. it should be associated with emissions at 4957.15 A and 5013.00 A, but these emissions were not detected.

  10. Tailored Barium Swallow Study

    MedlinePLUS

    Tailored Barium Swallow Study The TBS is a special study that is completed in radiology. The test evaluates the mouth and the throat ... and may be asked to feed the child. Study Participants You/Your child will drink liquids or ...

  11. Semiconducting barium titanate

    Microsoft Academic Search

    W. Heywang

    1971-01-01

    Barium titanate, which is well known as a basic ferroelectric material, is also of interest when doped because of the interaction between semiconductivity and ferroelectricity. The resistance of blocking layers at surfaces and grain-boundaries is governed mainly by the ferroelectric properties, so that a resistance jump of four decades is observed on heating above the Curie temperature. A survey of

  12. Development of In Situ Gelling and Bio Adhesive 5-Fluorouracil Enema

    PubMed Central

    Wang, Lu-Lu; Zheng, Wen-Sheng; Chen, Shao-Hua; Fang, Xia-Qin

    2013-01-01

    In this study, a novel 5-Fluorouracil (5-FU) enema with good bio adhesion and temperature sensitivity was developed using in situ gelling technology. The preparation was formulated as a free-flowing liquid before use, while a layer of gel film was quickly formed when administered in the rectum, with a large contact surface area. It also demonstrated good biocompatibility, appropriate gel strength and bio adhesive force with excellent adhesion to rectal mucosa and prolonged action time, allowing more effective drug absorption and diffusion to surrounding tissues. Poloxamer 407 and poloxamer 188 were applied to adjust the gelling temperature. With the addition of carbopol and polycarbophil (bio adhesive substances), the solubility of 5-FU and gel strength increased, the temperature of gelation and the surface area of drug contact on mucous epithelium decreased. Decreased adhesive force between the preparation and the mucous membrane of the rectum was demonstrated with improving carbopol and polycarbophil’s concentration. In vitro release demonstrated that 5-FU in situ gelling enema with different bases had a rapid and almost complete drug release. We used an optimized formulation of P407/P188/polycarbophil/5-FU (17/2.5/0.2/1.0) for animal experiments. The result showed that the drug evenly covered the surface of the rectum and there was no leakage in 6 hours. The in situ gelling enema showed significantly higher rectal tissue levels of 5-FU compared with suppository and intravenous administration, indicating that 5-FU could be well absorbed due to the enlarged releasing area, longer retention time and larger amount of dissolved active ingredients. Systemically, 5-FU levels in the enema group were similar to those in the suppository group and significantly lower than the intravenous group. The enema was not associated with morphological damage to rectal tissue. These results suggest that the bio adhesive and in situ gelling enema could be a more effective rectal delivery system of 5-FU. PMID:23976976

  13. Drug complications in outpatients

    Microsoft Academic Search

    Tejal K. Gandhi; Helen R. Burstin; E. Francis Cook; Ann L. Puopolo; Jennifer S. Haas; Troyen A. Brennan; David W. Bates

    2000-01-01

    OBJECTIVE: Outpatient drug complications have not been well studied. We sought to assess the incidence and characteristics of outpatient\\u000a drug complications, identify their clinical and nonclinical correlates, and evaluate their impact on patient satisfaction.\\u000a \\u000a \\u000a DESIGN: Retrospective chart reviews and patient surveys.\\u000a \\u000a \\u000a \\u000a \\u000a SETTING: Eleven Boston-area ambulatory clinics.\\u000a \\u000a \\u000a \\u000a \\u000a PATIENTS: We randomly selected 2,248 outpatients, 20 to 75 years old.\\u000a \\u000a \\u000a \\u000a \\u000a MEASUREMENTS AND MAIN

  14. Silicosis in barium miners.

    PubMed Central

    Seaton, A; Ruckley, V A; Addison, J; Brown, W R

    1986-01-01

    Four men who mined barytes in Scotland and who developed pneumoconiosis are described. Three developed progressive massive fibrosis, from which two died; and one developed a nodular simple pneumoconiosis after leaving the industry. The radiological and pathological features of the men's lungs were those of silicosis and high proportions of quartz were found in two of them post mortem. The quartz was inhaled from rocks associated with the barytes in the mines. The features of silicosis in barium miners are contrasted with the benign pneumoconiosis, baritosis, that occurs in workers exposed to crushed and ground insoluble barium salts. Diagnostic difficulties arise when silicosis develops in workers mining minerals known to cause a separate and benign pneumoconiosis. These difficulties are compounded when, as not infrequently happens, the silicotic lesions develop or progress after exposure to quartz has ceased. Images PMID:3787542

  15. 75 FR 33824 - Barium Chloride From China

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-15

    ...No. 731-TA-149 (Third Review)] Barium Chloride From China Determination On the...revocation of the antidumping duty order on barium chloride from China would be likely to...Publication 4157 (June 2010), entitled Barium Chloride from China: Investigation...

  16. 75 FR 19657 - Barium Chloride From China

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-15

    ...No. 731-TA-149 (Third Review)] Barium Chloride From China AGENCY: United States...concerning the antidumping duty order on barium chloride from China...revocation of the antidumping duty order on barium chloride from China would be likely...

  17. Properties of Semiconductive Barium Titanates

    Microsoft Academic Search

    Osamu Saburi

    1959-01-01

    The resistivity of barium titanate which is usually of the order of 109˜1012 ohm-cm, may be remarkably reduced with suitable control in valency. The valency-controlled barium titanate, whose resistivity is of the order of 10˜104 ohm-cm at room temperature, shows anomalous positive character in the temperature dependency of the resistivity. For example, the resistivity of barium titanate containing 0.1 mol.

  18. The Malone antegrade continence enema combined with urinary diversion in adult neurogenic patients: early results

    Microsoft Academic Search

    Joel M. H. Teichman; Vince J. Rogenes; Douglas B. Barber

    1997-01-01

    Objectives. Patients with neurogenic voiding dysfunction often have coexisting neurogenic bowel problems. Impaired bowel evacuation is a cause of major morbidity and impaired lifestyle for these patients. The Malone antegrade continence enema (ACE) performed synchronously with a urinary continence procedure has been successful in pediatric patients. We report early experience combining the ACE with a urinary continence procedure in adult

  19. Use of Malone Antegrade Continence Enema in Patients With Perineal Colostomy After Rectal Resection

    Microsoft Academic Search

    Guillaume Portier; Nicolas Bonhomme; Ivan Platonoff; Frank Lazorthes

    2005-01-01

    PURPOSE  Abdominoperineal resection, with iliac colostomy, remains the gold standard treatment for very low-lying rectal cancer, but it alters patients quality of life. Alternatives to iliac colostomy need to be experimented. Antegrade enemas via a cecal access (Malone operation) obtains a colonic emptying and improves continence for incontinent patients. Continence and quality of life after abdominoperineal resection and perineal colostomy associated

  20. Comparison of bismuth citrate and 5-aminosalicylic acid enemas in distal ulcerative colitis: a controlled trial.

    PubMed Central

    Pullan, R D; Ganesh, S; Mani, V; Morris, J; Evans, B K; Williams, G T; Rhodes, J

    1993-01-01

    An enema that contained a complex of bismuth citrate and polyacrylate was compared with 5-aminosalicylic acid (5-ASA) enemas for treatment of distal ulcerative colitis. The multicentre trial involving 63 patients was randomised and double blind with enemas given over four weeks; clinical, sigmoidoscopic, and histological assessments were made. Improvements were seen in both treatment groups. Clinical remission was seen in 18 of 32 patients treated with 5-ASA and 12 of 31 patients treated with bismuth citrate-carbomer (chi 2 1.94; p = 0.16). Sigmoidoscopic remission occurred in 20 of 32 patients in the 5-ASA group and 15 of 31 patients given bismuth (chi 2 1.27; p = 0.26). Improvement of rectal biopsy histology by at least one grade was seen in 16 of 32 patients in the 5-ASA group and 14 of 31 patients with bismuth (chi 2 0.15; p = 0.70). Analysis of covariance gave no significant difference between groups, although there was a trend favouring 5-ASA. There was no evidence of bismuth accumulation during the trial. Bismuth enemas may offer a new therapeutic option in distal ulcerative colitis. PMID:8504970

  1. [Stepwise Outpatient Care.

    PubMed

    Valdes-Stauber, Juan; Vietz, Johannes; Kilian, Reinhold

    2014-05-23

    Objective: To assess possible differences in clinical, social, care, and satisfaction profile of patients treated by outpatient clinics or office based psychiatrists. Method: The study sample consists of 100 patients of a psychiatric outpatient clinic and 100 patients treated by office based psychiatrists in the same catchment area. Patients were examined using standardized assessment instruments for severity of illness (HoNOS, CGI), general (GAF) and specific functional impairment (PSP), and satisfaction with psychiatric services (ZUF-8). Chi-square tests, univariate ANOVAs and stepwise multivariate logistic regression models were applied. Results: Compared with patients treated by office based psychiatrists, patients treated by the outpatient clinic showed higher HoNOS and CGI scores, lower GAF and PSP scores, and had more often a disability pension, a legal guardianship, a schizophrenia diagnosis, suicide attempts, hospitalizations, and therapeutic contacts. However, there were no significant differences regarding care satisfaction. Conclusion: The assessed outpatient clinic met the German statutory criteria for its legitimation. However, care needs have to be specified in a better way, and the different care intensity as well as concrete interventions between both settings have to be specified more accurately. PMID:24858435

  2. Barium uranyl diphosphonates

    SciTech Connect

    Nelson, Anna-Gay D., E-mail: nelsoa@umich.edu [Department of Civil Engineering and Geological Sciences and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556 (United States); Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48109-1005 (United States); Alekseev, Evgeny V. [Institute of Energy and Climate Research (IEK-6), Forschungszentrum Juelich Wilhelm-Johnen-Strasse, Juelich 52428 (Germany); Ewing, Rodney C. [Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48109-1005 (United States); Albrecht-Schmitt, Thomas E. [Department of Civil Engineering and Geological Sciences and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556 (United States)

    2012-08-15

    Three Ba{sup 2+}/UO{sub 2}{sup 2+} methylenediphosphonates have been prepared from mild hydrothermal treatment of uranium trioxide, methylendiphosphonic acid (C1P2) with barium hydroxide octahydrate, barium iodate monohydrate, and small aliquots of HF at 200 Degree-Sign C. These compounds, Ba[UO{sub 2}[CH{sub 2}(PO{sub 3}){sub 2}]{center_dot}1.4H{sub 2}O (Ba-1), Ba{sub 3}[(UO{sub 2}){sub 4}(CH{sub 2}(PO{sub 3}){sub 2}){sub 2}F{sub 6}]{center_dot}6H{sub 2}O (Ba-2), and Ba{sub 2}[(UO{sub 2}){sub 2}(CH{sub 2}(PO{sub 3}){sub 2})F{sub 4}]{center_dot}5.75H{sub 2}O (Ba-3) all adopt layered structures based upon linear uranyl groups and disphosphonate molecules. Ba-2 and Ba-3 are similar in that they both have UO{sub 5}F{sub 2} pentagonal bipyramids that are bridged and chelated by the diphosphonate moiety into a two-dimensional zigzag anionic sheet (Ba-2) and a one-dimensional ribbon anionic chain (Ba-3). Ba-1, has a single crystallographically unique uranium metal center where the C1P2 ligand solely bridges to form [UO{sub 2}[CH{sub 2}(PO{sub 3}){sub 2}]{sup 2-} sheets. The interlayer space of the structures is occupied by Ba{sup 2+}, which, along with the fluoride ion, mediates the structure formed and maintains overall charge balance. - Graphical abstract: Illustration of the stacking of the layers in Ba{sub 3}[(UO{sub 2}){sub 4}(CH{sub 2}(PO{sub 3}){sub 2}){sub 2})F{sub 6}]{center_dot}6H{sub 2}O viewed along the c-axis. The structure is constructed from UO{sub 7} pentagonal bipyramidal units, U(1)O{sub 7}=gray, U(2)O{sub 7}=yellow, barium=blue, phosphorus=magenta, fluorine=green, oxygen=red, carbon=black, and hydrogen=light peach. Highlights: Black-Right-Pointing-Pointer The polymerization of the UO{sub 2}{sup 2+} sites to form uranyl dimers leads to structural variations in compounds. Black-Right-Pointing-Pointer Barium cations stitch uranyl diphosphonate anionic layers together, and help mediate structure formation. Black-Right-Pointing-Pointer HF acts as both a mineralizing agent and a ligand.

  3. [A case of hepatic encephalopathy successfully treated by antegrade glycerin enema through percutaneous endoscopic cecostomy].

    PubMed

    Tomikashi, Koichi; Nomura, Yuh; Miyawaki, Kiichiro; Shimada, Ayumi; Kanemitsu, Daisuke; Takashima, Hidetaka; Abe, Mitsumasa

    2008-01-01

    A 76-year-old man with liver cirrhosis, a chronic defecation disorder and a refractory hepatic encephalopathy was hospitalized for the hepatic encephalopathy. The encephalopathy quickly improved upon treatment, but a high level of serum ammonia persisted. We inserted a percutaneous endoscopic cecostomy at the cecum and an antegrade glycerin enema through it to treat the chronic defecation disorder, which was a deteriorative factor of the hepatic encephalopathy. After the aforementioned procedure, the chronic defecation disorder improved and the serum ammonia level dramatically decreased. The patient continued the antegrade glycerin enema at home, and serum ammonia values remained low in comparison to levels measured prior to the administration of treatment. The subject has not experienced a recurrence of hepatic encephalopathy. PMID:18176043

  4. Failure of 5-aminosalicylic acid enemas to improve chronic radiation proctitis

    SciTech Connect

    Baum, C.A.; Biddle, W.L.; Miner, P.B. Jr.

    1989-05-01

    Radiation proctitis is a well-known complication of abdominal and pelvic radiation. Conventional medical and surgical treatment often is disappointing. 5-Aminosalicylic acid (5-ASA) is the active component in sulfasalazine and is effective in the treatment of distal ulcerative colitis. Four patients with radiation proctitis were treated with 4 g 5-ASA by enema nightly for two to six months. Patients were seen monthly, interviewed, and a sigmoidoscopic exam performed. No change was seen in the degree of mucosal inflammation on follow-up sigmoidoscopic exams. Three patients noted no change in their symptoms of bleeding, pain, or tenesmus. One patient noted initial improvement, but this was not sustained. 5-ASA enemas do not appear to be effective in the treatment of radiation proctitis.

  5. Discovery of the Barium Isotopes

    E-print Network

    A. Shore; A. Fritsch; J. Q. Ginepro; M. Heim; A. Schuh; M. Thoennessen

    2009-08-13

    Thirty-eight barium isotopes have so far been observed; the discovery of these isotopes is discussed. For each isotope a brief summary of the first refereed publication, including the production and identification method, is presented.

  6. Discovery of the barium isotopes

    SciTech Connect

    Shore, A.; Fritsch, A.; Ginepro, J.Q.; Heim, M.; Schuh, A. [National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 (United States); Thoennessen, M., E-mail: thoennessen@nscl.msu.ed [National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 (United States)

    2010-11-15

    Thirty-eight barium isotopes have been observed so far and the discovery of these isotopes is discussed here. For each isotope a brief summary of the first refereed publication, including the production and identification method, is presented.

  7. 42 CFR 419.21 - Hospital outpatient services subject to the outpatient prospective payment system.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...outpatient services subject to the outpatient prospective payment system. 419.21 Section...SERVICES (CONTINUED) MEDICARE PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT...Excluded From the Hospital Outpatient Prospective Payment System § 419.21...

  8. FLAME SPECTROPHOTOMETRIC STUDY OF BARIUM

    Microsoft Academic Search

    J. C. Burger; T. C. Rains; H. E. Zittel; J. A. Dean

    1961-01-01

    Flame emission characteristics of the barium ionic doublet at 455.4 and ; 4193.4 m mu , the atomic resonance line at 553.6 m mu , and the BaOH and BaO ; bands at 489 and 513 m mu were studied. A prism flame spectrophotometer ; (Beckman DU) and a grating type (Jarrell-Ash Ebert) were used. Barium ; concentrations ranged from

  9. Large-volume barium aspiration.

    PubMed

    Hundemer, Gregory L; Kumar, Varun; Vaduganathan, Muthiah

    2015-04-01

    We present a case of large-volume barium aspiration in a 56-year-old woman with stage IV tongue squamous cell carcinoma and longstanding dysphagia. The patient rapidly developed hypoxemic respiratory failure from the resultant chemical pneumonitis. However, her respiratory status improved with supportive care alone in 48 hours. Barium aspiration is rare and often produces dramatic radiographic findings, but is generally associated with a favorable prognosis. PMID:25829647

  10. Large-volume barium aspiration

    PubMed Central

    Hundemer, Gregory L.; Kumar, Varun

    2015-01-01

    We present a case of large-volume barium aspiration in a 56-year-old woman with stage IV tongue squamous cell carcinoma and longstanding dysphagia. The patient rapidly developed hypoxemic respiratory failure from the resultant chemical pneumonitis. However, her respiratory status improved with supportive care alone in 48 hours. Barium aspiration is rare and often produces dramatic radiographic findings, but is generally associated with a favorable prognosis. PMID:25829647

  11. Barium light source method and apparatus

    NASA Technical Reports Server (NTRS)

    Curry, John J. (Inventor); MacDonagh-Dumler, Jeffrey (Inventor); Anderson, Heidi M. (Inventor); Lawler, James E. (Inventor)

    2002-01-01

    Visible light emission is obtained from a plasma containing elemental barium including neutral barium atoms and barium ion species. Neutral barium provides a strong green light emission in the center of the visible spectrum with a highly efficient conversion of electrical energy into visible light. By the selective excitation of barium ionic species, emission of visible light at longer and shorter wavelengths can be obtained simultaneously with the green emission from neutral barium, effectively providing light that is visually perceived as white. A discharge vessel contains the elemental barium and a buffer gas fill therein, and a discharge inducer is utilized to induce a desired discharge temperature and barium vapor pressure therein to produce from the barium vapor a visible light emission. The discharge can be induced utilizing a glow discharge between electrodes in the discharge vessel as well as by inductively or capacitively coupling RF energy into the plasma within the discharge vessel.

  12. Improving outpatient diabetes care.

    PubMed

    Kirsh, Susan; Hein, Michael; Pogach, Leonard; Schectman, Gordon; Stevenson, Lauren; Watts, Sharon; Radhakrishnan, Archana; Chardos, John; Aron, David

    2012-01-01

    More than 20% of patients in the Veterans Health Administration (VHA) have diabetes; therefore, disseminating "best practices" in outpatient diabetes care is paramount. The authors' goal was to identify such practices and the factors associated with their development. First, a national VHA diabetes registry with 2008 data identified clinical performance based on the percentage of patients with an A1c >9%. Facilities (n = 140) and community-based outpatient clinics (n = 582) were included and stratified into high, mid, and low performers. Semistructured telephone interviews (31) and site visits (5) were conducted. Low performers cited lack of teamwork between physicians and nurses and inadequate time to prepare. Better performing sites reported supportive clinical teams sharing work, time for non-face-to-face care, and innovative practices to address local needs. A knowledge management model informed our process. Notable differences between performance levels exist. "Best practices" will be disseminated across the VHA as the VHA Patient-Centered Medical Home model is implemented. PMID:22031174

  13. Abundance analysis of barium and mild barium stars

    E-print Network

    R. Smiljanic; G. F. Porto de Mello; L. da Silva

    2007-04-02

    High signal to noise, high resolution spectra were obtained for a sample of normal, mild barium, and barium giants. Atmospheric parameters were determined from the FeI and FeII lines. Abundances for Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Sr, Y, Zr, Ba, La, Ce, Nd, Sm, Eu, and Gd, were determined from equivalent widths and model atmospheres in a differential analysis, with the red giant Eps Vir as the standard star. The different levels of s-process overabundances of barium and mild barium stars were earlier suggested to be related to the stellar metallicity. Contrary to this suggestion, we found in this work no evidence of barium and mild barium to having different range in metallicity. However, comparing the ratio of abundances of heavy to light s-process elements, we found some evidence that they do not share the same neutron exposure parameter. The exact mechanism controlling this difference is still not clear. As a by-product of this analysis we identify two normal red giants misclassified as mild barium stars. The relevance of this finding is discussed. Concerning the suggested nucleosynthetic effects possibly related to the s-process, for elements like Cu, Mn, V and Sc, we found no evidence for an anomalous behavior in any of the s-process enriched stars analyzed here. However, further work is still needed since a clear [Cu/Fe] vs. [Ba/H] anticorrelation exists for other s-process enriched objects.

  14. Barium and CH Stars The classical barium (or ``Ba II'') stars are red

    E-print Network

    Bond, Howard E.

    Barium and CH Stars The classical barium (or ``Ba II'') stars are red giants whose spectra show strong absorption lines of barium, strontium, and certain other heavy elements, as well as strong transfer in binary sys­ tems that drastically alters the surface compo­ sition of a companion star. Barium

  15. Fully-Ionized Barium Plasma Source

    Microsoft Academic Search

    N. Rynn; E. Hinnov; L. C. Johnson

    1967-01-01

    A device for generating a fully-ionized barium plasma column is described. It is similar to the previously described Q1 device except for the substitution of rhenium ionizing surfaces for tungsten, and barium for the alkali metals. The main motivation for the use of barium is that singly-ionized barium has its resonance lines in the visible wavelength range, and thus allows

  16. Barium Ions for Quantum Computation Matthew Dietrich

    E-print Network

    Blinov, Boris

    Barium Ions for Quantum Computation Matthew Dietrich A dissertation submitted in partial of the manuscript made from microform." Signature Date #12;#12;University of Washington Abstract Barium Ions Department of Physics Barium ion is investigated as a hyperfine qubit. 137Ba+ is trapped in a linear Paul

  17. Quantum manipulation on the Barium quadrupolar transition

    E-print Network

    Blatt, Rainer

    Quantum manipulation on the Barium quadrupolar transition A diploma thesis in physics submitted and stabilization of a new fiber laser system to ma- nipulate the Barium quadrupolar transition, with the aim with a single Barium ion trapped in a linear Paul trap and Doppler cooled to the Lamb Dicke regime. The narrow

  18. Mucosal colonic tube fistula with antireflux wrap for antegrade colonic enema.

    PubMed

    Bowkett, Brendon Douglas; Kelly, E W

    2009-06-01

    Antegrade enemas can provide children with excellent faecal continence in situations where adequate control has been compromised because of underlying congential anomaly or poor surgical outcome in their treatment. The enema is often delivered through an appendicostomy. If the appendix is absent or utilized for another purpose, then placement of a chait tube or caecostomy button can provide access to the colon for the enema. However, these devices may be associated with breakages, accidental removal and leakage and replacement may require another operative procedure under a general anaesthetic. Full thickness colonic tubes can also be constructed at any point along the colon but in the author's experience, they can be associated with significant leakage of both gas and faecal material. The construction of a mucosal colonic tube with anti-reflux wrap is a technique that avoids the above problems and offers a distinctive advantage in selected situations. The technique relies on tabularising mucosa alone to create a continent fistula. Six children with severe soiling underwent the technique. The outcomes were evaluated using a modified quality of life score (QOLI). The score included assessment of soiling, staining, odour, self-esteem and socialization measure. Technical evaluation included analysis of the ease of catheterization and continence of the mucosal fistula site. All six patients had dramatic improvement in their faecal continence with complete resolution of soiling in all six. Follow up median is 42 months and the range is 6-48 months. QOLI scores improved from a total of 4.75 to 18.5. Possible range is 0-21. All the six fistula sites catheterize easily and no stenosis or faecal leakage has occurred. Two patients required treatment of minor granulations at the entry site of the fistula during the early healing phase. PMID:19455343

  19. Monitoring Outpatient Care

    NASA Technical Reports Server (NTRS)

    2003-01-01

    Each year, health care costs for managing chronically ill patients increase as the life expectancy of Americans continues to grow. To handle this situation, many hospitals, doctors practices, and home care providers are turning to disease management, a system of coordinated health care interventions and communications, to improve outpatient care. By participating in daily monitoring programs, patients with congestive heart failure, chronic obstructive pulmonary disease, diabetes, and other chronic conditions requiring significant self-care are facing fewer emergency situations and hospitalizations. Cybernet Medical, a division of Ann Arbor, Michigan-based Cybernet Systems Corporation, is using the latest communications technology to augment the ways health care professionals monitor and assess patients with chronic diseases, while at the same time simplifying the patients interaction with technology. Cybernet s newest commercial product for this purpose evolved from research funded by NASA, the National Institute of Mental Health, and the Advanced Research Projects Agency. The research focused on the physiological assessment of astronauts and soldiers, human performance evaluation, and human-computer interaction. Cybernet Medical's MedStar Disease Management Data Collection System is an affordable, widely deployable solution for improving in-home-patient chronic disease management. The system's battery-powered and portable interface device collects physiological data from off-the-shelf instruments.

  20. Spiral CT of the abdomen after distention of small bowel loops with transparent enema in patients with Crohn's disease

    Microsoft Academic Search

    G. A. Rollandi; P. F. Curone; E. Biscaldi; F. Nardi; E. Bonifacino; R. Conzi; L. E. Derchi

    1999-01-01

    Background: To evaluate the capability of a computed tomographic (CT) technique that combines distention of the small bowel loops with\\u000a a transparent enema with contrast-enhanced spiral CT of the abdomen in patients with Crohn's disease.\\u000a \\u000a \\u000a \\u000a \\u000a Methods: We evaluated the abdomen with spiral CT after distention of the small bowel loops with a transparent enema of methylcellulose\\u000a in 40 patients consecutively

  1. Computer modelling of barium titanate

    Microsoft Academic Search

    G. V. Lewis; C. R. A. Catlow

    1983-01-01

    Barium titanate is an important material for both scientific and industrial applications. Much of the interest centres around its ferroelectric properties, since it is structurally the most simple in this class. In addition rare-earth doped ceramics are found to exhibit a very steep positive temperature coefficient of resistance (PTCR) above the Curie point. The theory of this PTCR effect is

  2. 42 CFR 419.21 - Hospital outpatient services subject to the outpatient prospective payment system.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...outpatient prospective payment system. 419.21 Section 419...SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICARE...CONTINUED) PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT...Outpatient Prospective Payment System § 419.21 Hospital...

  3. 42 CFR 419.21 - Hospital outpatient services subject to the outpatient prospective payment system.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...outpatient prospective payment system. 419.21 Section 419...SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICARE PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT DEPARTMENT...Outpatient Prospective Payment System § 419.21 Hospital...

  4. 40 CFR 721.10011 - Barium calcium manganese strontium oxide.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...2012-07-01 false Barium calcium manganese strontium oxide. 721.10011 Section...Substances § 721.10011 Barium calcium manganese strontium oxide. (a) Chemical substance...substance identified as barium calcium manganese strontium oxide (PMN...

  5. 40 CFR 721.10011 - Barium calcium manganese strontium oxide.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...2013-07-01 false Barium calcium manganese strontium oxide. 721.10011 Section...Substances § 721.10011 Barium calcium manganese strontium oxide. (a) Chemical substance...substance identified as barium calcium manganese strontium oxide (PMN...

  6. 40 CFR 721.10011 - Barium calcium manganese strontium oxide.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...2011-07-01 false Barium calcium manganese strontium oxide. 721.10011 Section...Substances § 721.10011 Barium calcium manganese strontium oxide. (a) Chemical substance...substance identified as barium calcium manganese strontium oxide (PMN...

  7. 40 CFR 721.10011 - Barium calcium manganese strontium oxide.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...2014-07-01 false Barium calcium manganese strontium oxide. 721.10011 Section...Substances § 721.10011 Barium calcium manganese strontium oxide. (a) Chemical substance...substance identified as barium calcium manganese strontium oxide (PMN...

  8. 40 CFR 721.10011 - Barium calcium manganese strontium oxide.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...2010-07-01 2010-07-01 false Barium calcium manganese strontium oxide. 721.10011...Chemical Substances § 721.10011 Barium calcium manganese strontium oxide. (a...chemical substance identified as barium calcium manganese strontium oxide (PMN...

  9. Investigations on Barium Ferrite Magnets

    Microsoft Academic Search

    K. J. Sixtus; K. J. Kronenberg; R. K. Tenzer

    1956-01-01

    Barium ferrite (BaO:6Fe2O3) has been investigated magnetically to test the predictions of fine particle theory in the region of grain sizes larger than the critical one for which no satisfactory theory exists as yet. Grain size and coercive force of polycrystalline magnets (nonoriented and crystal oriented) were closely related to sintering temperatures. A comparison of theoretical and observed temperature dependence

  10. The problem of the barium stars

    NASA Technical Reports Server (NTRS)

    Bohm-Vitense, E.; Nemec, J.; Proffitt, C.

    1984-01-01

    Ultraviolet observations of barium stars and other cool stars with peculiar element abundances are reported. Those observations attempted to find hot white dwarf companions. Among six real barium stars studied, only Zeta Cap was found to have a white dwarf companion. Among seven mild, or marginal, barium stars studied, at least three were found to have hot subluminous companions. It is likely that all of them have white dwarf companions.

  11. [Treatment of severe chronic constipation through the antegrade continent enema procedure].

    PubMed

    Pera, Miguel; Parés, David; Pascual, Marta; Pérez, Marta; Cañete, Nuria; Sánchez de la Blanca, M Isabel; Andréu, Montserrat; Grande, Luis

    2006-12-01

    The antegrade continent enema procedure was first described in 1990 by Malone for the treatment of severe fecal neurogenic incontinence in children. Since then, this technique has been successfully carried out in adults, as well as in patients with refractory constipation. The procedure provides a continent and catheterizable channel, generally an appendicostomy, through which antegrade washouts are given to produce colonic emptying. We describe the case of a 23-year-old man with severe constipation and overflow fecal incontinence who underwent an appendicostomy. There were no immediate postoperative complications and saline washouts were started on the fourth day. Since then, the patient has had a bowel movement between 1 and 3 hours after each washout, has recovered continence, and no longer wears an absorbent pad. PMID:17192226

  12. 75 FR 20625 - Barium Chloride From China

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-20

    ...INTERNATIONAL TRADE COMMISSION [Investigation No. 731-TA-149 (Third Review)] Barium Chloride From China AGENCY: United States International Trade Commission. ACTION: Revised schedule for the subject...

  13. Outpatient abdominoplasty under conscious sedation.

    PubMed

    Mustoe, Thomas A; Kim, Peter; Schierle, Clark F

    2007-01-01

    According to the authors, advantages of outpatient abdominoplasty performed with the patient under conscious sedation are decreased nausea and vomiting and greatly reduced risk of deep venous thrombosis. Sharp dissection without electrocautery, preservation of perforators, and a plane of dissection that preserves lymphatic vessels has provided rapid recovery, minimal need for postoperative narcotics, and a low complication rate. PMID:19341673

  14. Outpatient clinics without the paperwork.

    PubMed

    Hagland, M

    1997-05-01

    Chicago's MacNeal Health Network made several smart moves to get physician buy-in for a computer-based patient record system in its outpatient clinics. It didn't take long before paper-based patient records all but disappeared. PMID:10167512

  15. Sol-gel synthesis of barium titanate powders using barium acetate and titanium(IV) isopropoxide

    SciTech Connect

    Phule, P.P.; Risbud, S.H. (Univ. of Arizona, Tucson (USA))

    1988-03-01

    A sol-gel process for low-temperature preparation of BaTiO{sub 3} powders is described. Chemical polymerization between barium acetate and titanium(IV) isopropoxide leads to the formation of barium titanate gels. After suitable drying and calcination treatments, the barium titanate gels were converted to BaTiO{sub 3} powders. The barium titanate gels and powders were characterized by TGA, DTA, and XRD. The results of these analyses indicate that it is possible to obtain stoichiometric (Ba/Ti = 0.99), homogeneous, high-purity BaTiO{sub 3} powders using relatively inexpensive barium acetate as a starting material.

  16. Intussusception

    MedlinePLUS

    ... kinds of enemas (an air enema or a barium enema ) often can diagnose and treat intussusception at ... been turned inside out and cures the blockage. Barium, a liquid mixture, is sometimes used in place ...

  17. Outpatient pulmonary rehabilitation – rehabilitation models and shortcomings in outpatient aftercare

    PubMed Central

    Korczak, Dieter; Huber, Beate; Steinhauser, Gerlinde; Dietl, Markus

    2010-01-01

    Background The chronic obstructive pulmonary disease (COPD) and the bronchial asthma are widespread diseases. They need long-lasting and sustainable rehabilitation. Objectives The goal of this HTA is to describe the present supply and the economic relevance of out-patient pulmonary rehabilitation in conjunction with its social aspects. A further target is to derivate options for actions in the health-care system and possible research necessities. Methods Relevant publications are identified by means of a structured search in 37 database accessed through the German Institute of Medical Documentation and Information (DIMDI). In addition a manual search of identified reference lists has been done. The present report includes German and English literature published from 2004 to 2009. The methodological quality was assessed by two independent researchers according to pre-defined quality criteria of evidence based medicine. Results Among 860 publications 31 medical studies, four economic studies and 13 ethical studies meet the inclusion criteria. The studies cover rehabilitation programmes in 19 countries. The majority of them has a high level of evidence (1A to 2C). The pulmonary rehabilitation programmes differ by the setting (in-patient, out-patient, in-home, community-based), by the length of intervention (from two weeks to 36 months), by the way and the frequency of intervention and by the duration of the follow-up treatment. Overall out-patient rehabilitation programmes achieve the same positive effects for COPD patients as in-patient programmes do. This is especially true for physical performance and health related quality of life. There are only a few studies dealing with asthma. Therefore, valid statements cannot be given. The results for cost-effectiveness are not distinct enough. Discussion Goals of pulmonary rehabilitation like prevention and adequate treatment of acute exacerbations, the minimisation of hospitalisation and the reduction of mortality are attained in out-patient as well as in in-patient pulmonary rehabilitation. Regarding the best frequency of training units per week or the duration and the content of a unit further research is needed. Final results for the ideal length of an in-patient rehabilitation are still missing. None of the studies deals with the analysis of the different treatment forms of a COPD which are frequently defined by an alteration of in-patient and out-patient treatments and participation in sports clubs or self-help groups. There are some other limitations of the studies. The results concerning self-management programmes are not distinct. (Self-) Selection leads to high drop-out rates. Many studies have only small sample sizes. Confounder and long-time effects are seldom researched, relevant economic evaluations do not exist The improvement of health related quality of life is primarily obtained by an improved disease management than by an improvement of a medical parameter. Conclusion Out-patient pulmonary rehabilitation is as effective as in-patient pulmonary rehabilitation. But there is a critical shortage of out-patient pulmonary rehabilitation supply in Germany. Domains for further research are the evaluation of models for integrated care, the length, frequency and content of training programmes, psychiatric assessments and the cost-effectiveness of out-patient pulmonary rehabilitation. PMID:21289884

  18. Noise characterisation of barium ferrite dispersions

    Microsoft Academic Search

    S. M. McCann; P. M. Sollis; P. R. Bissell; T. Onions

    1999-01-01

    Structural changes in barium ferrite dispersions during the milling process have been investigated by using noise measurements of the remanent states (DC modulation noise). Doped barium ferrite particles mixed with solvents, self wetting resins and binders were dispersed using a bead mill. Samples extracted at intervals during the process were coated onto PET film and magnetically oriented before drying. Tapes

  19. REMOVAL OF BARIUM AND RADIUM FROM GROUNDWATER

    EPA Science Inventory

    A research project was undertaken to investigate processes for removing barium and radium from drinking water. Special emphasis was placed on ion exchange processes that can be used without adding large concentrations of sodium to the water. The wastes from radium and barium remo...

  20. Tribological properties of barium ferrite films

    Microsoft Academic Search

    M. Scherge; X. Sui; X. Ma; C. L. Bauer; M. S. Jhon; M. H. Kryder

    1995-01-01

    Acoustic emission and friction coefficients have been measured during start-stop and continuous sliding for pure and doped barium ferrite films, without lubrication, and compared with concomitant surface topography and magnetic properties. Barium ferrite films averaging about 100 nm in thickness, were produced on thermally oxidized Si substrates by sputter deposition and then furnace or rapid thermal annealed in order to

  1. Tuberculosis: Hospitalization and Outpatient Treatment

    PubMed Central

    Wicks, C. A.

    1964-01-01

    Initial hospitalization terminated by discharge upon medical advice to continue with chemotherapy on an outpatient basis represents the treatment of choice for most patients with active pulmonary tuberculosis. Any departure from this plan for any patient should be accepted only after careful consideration of all the circumstances. Patients with active pulmonary tuberculosis who are to receive outpatient chemotherapy without adequate initial hospitalization should be carefully selected by the local or provincial department of public health. Approval in writing should be required from the appropriate public health authority before antituberculosis chemotherapy is provided at public expense for any such patient, except possibly for a limited period while awaiting formal approval. In all instances, the clinic which dispenses the antituberculosis drugs should have the patient under supervision with recall for follow-up examinations as required. Prophylactic antituberculosis chemotherapy may be provided to certain groups of persons without hospitalization. PMID:14179540

  2. Medication errors in paediatric outpatients

    Microsoft Academic Search

    Rainu Kaushal; Donald A Goldmann; Carol A Keohane; Erika L Abramson; Seth Woolf; Catherine Yoon; Katherine Zigmont; David W Bates

    2010-01-01

    BackgroundMedication errors are common in many settings and have important ramifications. Although there is growing research on rates and characteristics of medication errors in adult ambulatory settings, less is known about the paediatric ambulatory setting.ObjectiveTo assess medication error rates in paediatric patients in ambulatory settings.MethodsThe authors conducted a prospective cohort study of paediatric patients in six outpatient offices in Massachusetts.

  3. Outpatient Diverticulitis: Mild or Myth?

    PubMed Central

    O’Connor, Erin S.; Smith, Maureen A.; Heise, Charles P.

    2013-01-01

    Background Diverticulitis is considered common in the outpatient population, with mild variants of described diagnostic criteria: left lower quadrant pain, fever, and leukocytosis. Here, expected criteria utilization among outpatients with a possible diagnosis of diverticulitis is assessed. Study Design Primary care acute clinic visits in 2008 for diverticulitis (ICD-9 562.11/562.13) or left lower quadrant pain (789.04) were identified among patients ?40 years old. Encounters were reviewed through structured manual chart abstraction, and evaluated for diagnostic accuracy compared to expected criteria. Analysis included inter-rater reliability (kappa tests) and descriptive frequencies by diagnosis code and diverticulitis rating (?2-tests). Results 376 acute visits were identified with codes for diverticulitis (n=97) or left lower quadrant pain (n=279). High inter-rater reliability was demonstrated for key clinical variables (kappa=0.84–1.0). Left lower quadrant pain was reported in >75% of patients, while temperature and white blood cell count data were frequently unavailable. Lack of these expected criteria resulted in low diagnostic accuracy ratings ("No/Unlikely" – 53.6% diverticulitis, 88.2% left lower quadrant pain, p<0.001). Conclusions This investigation raises concern for low accuracy in the outpatient diagnosis of diverticulitis due to inconsistent use of expected criteria, suggesting a smaller population with true diverticulitis than previously anticipated, or lack of criteria applicability in this setting. PMID:22411489

  4. Communications to the Editor Synthesis of Monodisperse Nanoparticles of Barium

    E-print Network

    Communications to the Editor Synthesis of Monodisperse Nanoparticles of Barium Titanate: Toward of barium titanate, BaTiO3, with diameters ranging from 6 to 12 nm. Barium titanate is a room,10 In the synthesis developed here, barium titanium ethyl hexano-isopropoxide (A

  5. Ileoanal pouches: Comparison of CT, scintigraphy, and contrast enemas for diagnosing postsurgical complications

    SciTech Connect

    Thoeni, R.F.; Fell, S.C.; Engelstad, B.; Schrock, T.B. (Univ. of California, San Francisco (USA))

    1990-01-01

    The value of CT of the pelvis, 111In-labeled leukocyte scintigraphy, and contrast enema (pouchography) for detecting postsurgical complications was assessed in 44 patients with total colectomy, rectal mucosectomy, and ileoanal pouches. Ileoanal pouches were created as reservoirs from an ileal loop that was anastomosed to the dentate line of the anus and stayed connected to the remainder of the ileum. This pouch preserves the normal defecatory pathway and eliminates disease-producing mucosa. A total of 57 sets of examinations revealed 22 cases of normal postoperative findings, 22 of pouchitis, 13 of abscess, and three of fistula. Overall sensitivity for detecting complications with pouchography was 60% (18 of 30 findings); with CT, 78% (28 of 36 findings); and with scintigraphy, 79% (23 of 29 findings). Pouchitis was best diagnosed by scintigraphy (sensitivity, 80%), followed by CT (sensitivity, 71%) and pouchography (sensitivity, 53%). Only CT correctly diagnosed all cases of abscess. Fistulas were frequently missed by all three methods. If tests were combined, the overall sensitivity rose to 93% for the combination CT/scintigraphy and to 86% for CT/pouchography, but did not improve for pouchography/scintigraphy (78%). For evaluation of complications in patients with ileoanal pouches, CT should be the initial test. If an abscess is found, no further tests are needed. If CT findings are negative, a scintigram should be obtained. Our data did not establish a clear role for pouchography.

  6. Magnetic and dielectric properties of barium titanate-coated barium ferrite

    Microsoft Academic Search

    Chao Wang; Xijiang Han; Ping Xu; Xiaohong Wang; Xueai Li; Hongtao Zhao

    2009-01-01

    Flaky barium ferrite with hexagonal molecular structure was successfully prepared by reverse microemulsion method, and was coated with barium titanate through a coordination–precipitation technique. The prepared composite particles were characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDAX), vibrating sample magnetometry (VSM) and vector network analyzer. Barium ferrite nanoparticles are proved to be single magnetic

  7. Barium ions for quantum computation

    NASA Astrophysics Data System (ADS)

    Dietrich, Matthew

    Barium ion is investigated as a hyperfine qubit. 137Ba + is trapped in a linear Paul trap and laser cooled. Isotope selective photoionization is employed to improve trapping from an isotopically inpure source. Optical pumping into the magnetically insensitive 2S 1/2(F=2) mF = 0 state is shown, and readout by electron shelving into the 2D5/2 is demonstrated both directly and by adiabatic passage. Rabi flops between the 2S1/2 F=1 and F=2 states is accomplished by exposure to 8.037 GHz microwave radiation. Several methods of locking the cooling lasers have been attempted and are discussed. Stabilization of the infrared laser used to drive the D 5/2 ? S1/2 transition is of particular interest, and several novel technologies are tested in this purpose.

  8. Abundance Analysis of Barium Stars

    E-print Network

    G. Q. Liu; Y. C. Liang; L. Deng

    2008-11-13

    We obtain the chemical abundances of six barium stars and two CH subgiant stars based on the high signal-to-noise ratio and high resolution Echelle spectra. The neutron capture process elements Y, Zr, Ba, La, Eu show obvious overabundance relative to the Sun, for example, their [Ba/Fe] values are from 0.45 to 1.27. Other elements, including Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Mn, Ni, show comparable abundances to the Solar ones, and their [Fe/H] cover a range from $-$0.40 to 0.21, which means they belong to Galactic disk. The predicts of the theoretical model of wind accretion for binary systems can explain the observed abundance patterns of the neutron capture process elements in these stars, which means that their overabundant heavy-elements could be caused by accreting the ejecta of AGB stars, the progenitors of the present white dwarf companions in the binary systems.

  9. Barium Isotopes in Single Presolar Grains

    NASA Technical Reports Server (NTRS)

    Pellin, M. J.; Davis, A. M.; Savina, M. R.; Kashiv, Y.; Clayton, R. N.; Lewis, R. S.; Amari, S.

    2001-01-01

    Barium isotopic compositions of single presolar grains were measured by laser ablation laser resonant ionization mass spectrometry and the implications of the data for stellar processes are discussed. Additional information is contained in the original extended abstract.

  10. Point defects and properties of barium titanate

    SciTech Connect

    Prisedskii, V.V.; Tret'yakov, Y.D.

    1986-01-01

    The authors consider the simple case of uniformly distributed atomic point defects over the volume of a barium titanate crystal. The diversity of phenomena associated with the transport of electric charge in barium titanate is determined by the distinctive features of its point defects: the existence of two regions of disorder, one of which corresponds to a compensated semiconductor while the other corresponds to an uncompensated semiconductor and a difference in the kinetics of the relaxation of two types of dominant atomic defects, viz., oxygen and barium vacancies. The authors have made a quantitative examination of the interrelation between the conditions of the preparation of materials based on barium titanate and their electrical conductivity.

  11. Spinwave spectrum for barium ferrite (abstract)

    Microsoft Academic Search

    S. P. Marshall; J. B. Sokoloff

    1990-01-01

    In order to determine whether barium ferrite will be suitable for microwave and millimeter wave device applications, it is essential to calculate the intrinsic ferrimagnetic resonance linewidth for perfect single crystals of this compound. The two mechanisms believed to be responsible for the intrinsic linewidth of barium ferrite, the Kasuya–LeCraw1 two-magnon one-phonon process and the two-magnon scattering caused by the

  12. Fabrication of Barium Ferrite Thick Films

    Microsoft Academic Search

    Wei Jiang Yeh; Carla Blengeri-Oyarce; Sundeep Pillamari; Jnana Manoj Appikonda; Laura Diaz; Yanko Kranov; David McIlroy

    2008-01-01

    During recent years the need for high quality self-biased barium ferrite (BaFe12O19) thick films had been increasing due to its chemical stability, anisotropy and oriented hexagonal M-type ferrites. Our goal is to fabricate barium ferrite thick films to be incorporated in self-biased microwave devises. Different methods such as sputtering, pulse laser deposition, CVD and modified liquid phase deposition have been

  13. Dielectric and Piezoelectric Properties of Barium Titanate

    Microsoft Academic Search

    Shepard Roberts

    1947-01-01

    The dielectric constant and loss of barium titanate and barium-strontium titanate have been measured at biasing field strengths from 0 to 5 megavolts per meter, at temperatures from -50°C to +135°C and at frequencies from 0.1 to 25 megacycles. The measurements versus temperature indicate the expected agreement with the Curie-Weiss law at temperatures above the Curie point. Measurements versus field

  14. Psychiatric disorders in asthmatic outpatients.

    PubMed

    Nascimento, Isabella; Nardi, Antonio Egidio; Valença, Alexandre M; Lopes, Fabiana L; Mezzasalma, Marco A; Nascentes, Ronaldo; Zin, Walter A

    2002-05-15

    It has been reported that the lifetime prevalence of panic disorder in patients with pulmonary disease is higher than epidemiologic estimates of population prevalence. We evaluated the frequency of anxiety disorders in 86 subjects from the Outpatient Asthma Clinic. Psychiatric diagnoses were assessed with the Mini-International Neuropsychiatric Interview 4.4 Version (MINI). Forty-five asthmatic patients (52.3%) reported at least one current anxiety disorder. The frequency of panic disorder with or without agoraphobia was 13.9% (n=12) and that of agoraphobia without panic disorder was 26.8% (n=23). Social anxiety and generalized anxiety disorders occurred in 9.3% (n=8) and 24.4% (n=21) of the sample, respectively. Twenty-nine patients (33.7%) reported a major depressive episode. The psychiatric morbidity of the sample was 61.6% (n=53). Our results tend to support the high morbidity of anxiety disorders, particularly panic/agoraphobic spectrum disorders, in asthmatic outpatients. PMID:12007595

  15. Thermochemical hydrogen production via a cycle using barium and sulfur - Reaction between barium sulfide and water

    NASA Technical Reports Server (NTRS)

    Ota, K.; Conger, W. L.

    1977-01-01

    The reaction between barium sulfide and water, a reaction found in several sulfur based thermochemical cycles, was investigated kinetically at 653-866 C. Gaseous products were hydrogen and hydrogen sulfide. The rate determining step for hydrogen formation was a surface reaction between barium sulfide and water. An expression was derived for the rate of hydrogen formation.

  16. Blood Pressure Measurement in Different Outpatient Clinics

    Microsoft Academic Search

    Ricardo Pereira Silva; José Wellington Lima; Raul Pinheiro Medeiros; Haroldo Heitor Ribeiro Filho; Pedro Henrique Filgueira; Ramon Rawache Barbosa Lima; Carlos Roberto Martins Rodrigues Sobrinho

    2010-01-01

    The objective of this study is to investigate how blood pressure is measured in different outpatient clinics. This is a retrospective study performed with 1,000 patients, randomly selected among patients followed in different outpatient clinics in Fortaleza, Brazil. Among the 1,000 patients, 962 had available records. The older the patient, the greater the possibility of having had blood pressure measured.

  17. 38 CFR 17.92 - Outpatient care for research purposes.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...false Outpatient care for research purposes. 17.92 Section...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Outpatient Treatment § 17.92 Outpatient care for research purposes. Subject to...Department of Veterans Affairs research project and there are...

  18. 38 CFR 17.92 - Outpatient care for research purposes.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...false Outpatient care for research purposes. 17.92 Section...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Outpatient Treatment § 17.92 Outpatient care for research purposes. Subject to...Department of Veterans Affairs research project and there are...

  19. 38 CFR 17.92 - Outpatient care for research purposes.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...false Outpatient care for research purposes. 17.92 Section...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Outpatient Treatment § 17.92 Outpatient care for research purposes. Subject to...Department of Veterans Affairs research project and there are...

  20. 38 CFR 17.92 - Outpatient care for research purposes.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...false Outpatient care for research purposes. 17.92 Section...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Outpatient Treatment § 17.92 Outpatient care for research purposes. Subject to...Department of Veterans Affairs research project and there are...

  1. 38 CFR 17.92 - Outpatient care for research purposes.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...false Outpatient care for research purposes. 17.92 Section...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Outpatient Treatment § 17.92 Outpatient care for research purposes. Subject to...Department of Veterans Affairs research project and there are...

  2. 42 CFR 410.155 - Outpatient mental health treatment limitation.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Outpatient mental health treatment limitation. 410...Benefits § 410.155 Outpatient mental health treatment limitation. (a...liability amounts for outpatient mental health services subject to the...

  3. 42 CFR 410.155 - Outpatient mental health treatment limitation.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Outpatient mental health treatment limitation. 410...Benefits § 410.155 Outpatient mental health treatment limitation. (a...liability amounts for outpatient mental health services subject to the...

  4. 42 CFR 410.155 - Outpatient mental health treatment limitation.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Outpatient mental health treatment limitation. 410...Benefits § 410.155 Outpatient mental health treatment limitation. (a...liability amounts for outpatient mental health services subject to the...

  5. 42 CFR 410.155 - Outpatient mental health treatment limitation.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Outpatient mental health treatment limitation. 410...Benefits § 410.155 Outpatient mental health treatment limitation. (a...liability amounts for outpatient mental health services subject to the...

  6. 42 CFR 410.59 - Outpatient occupational therapy services: Conditions.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Outpatient occupational therapy services: Conditions... § 410.59 Outpatient occupational therapy services: Conditions...Part B pays for outpatient occupational therapy services only if they...

  7. 42 CFR 410.59 - Outpatient occupational therapy services: Conditions.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Outpatient occupational therapy services: Conditions... § 410.59 Outpatient occupational therapy services: Conditions...Part B pays for outpatient occupational therapy services only if they...

  8. 42 CFR 410.59 - Outpatient occupational therapy services: Conditions.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Outpatient occupational therapy services: Conditions... § 410.59 Outpatient occupational therapy services: Conditions...Part B pays for outpatient occupational therapy services only if they...

  9. 42 CFR 410.59 - Outpatient occupational therapy services: Conditions.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Outpatient occupational therapy services: Conditions... § 410.59 Outpatient occupational therapy services: Conditions...Part B pays for outpatient occupational therapy services only if they...

  10. 42 CFR 410.59 - Outpatient occupational therapy services: Conditions.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Outpatient occupational therapy services: Conditions... § 410.59 Outpatient occupational therapy services: Conditions...Part B pays for outpatient occupational therapy services only if they...

  11. Re-epithelialization of squamous epithelium for a radiation-induced rectal ulcer while giving an ecabet sodium enema.

    PubMed

    Chino, Akiko; Kishihara, Teruhito; Uragami, Naoyuki; Ishiyama, Akiyoshi; Ogawa, Taishi; Hoshino, Etsuo; Igarashi, Masahiro; Fujita, Rikiya

    2009-01-01

    The present patient developed a severe rectal ulcer more than 1 month after having received external beam radiation therapy for prostate cancer. Surveillance endoscopy every 3 months demonstrated healing of this rectal ulcer using a novel therapy. He was given enemas with ecabet sodium, which provides physical protection and promotes healing by increasing prostaglandin E(2), and this process induced squamous metaplasia that halted the progression of the ulcer of radiation proctitis as a late-phase reaction. Intrapapillary capillary loops were visualized with magnified narrow band imaging at the healing ulcer site as seen via the esophagus and, moreover, demonstrated histologically. PMID:19691805

  12. Effect of Majja Basti (therapeutic enema) and Asthi Shrinkhala (Cissus quadrangularis) in the management of Osteoporosis (Asthi-Majjakshaya).

    PubMed

    Gupta, Ajay K; Shah, Nehal; Thakar, A B

    2012-01-01

    Osteoporosis is a systemic disorder that affects entire skeleton, which is a metabolic bone disease characterized by low bone mass and microarchitectural deterioration of the skeleton, leading to enhanced bone fragility and a consequent increase in fracture risk. In Ayurveda, it can be correlated with Asthi-Majjakshaya. Basti (therapeutic enema) is the prime therapy for Asthi related diseases and Asthi Shrinkhala (Cissus quadrangularis) is the drug which is being used for strengthening of bone by traditional Vaidya since long. It has been selected for oral administration. In clinical trial, 12 patients treated with Majja Basti along with Asthi Shrinkhala pulp capsules and results are very encouraging. PMID:23049194

  13. Outpatient burns: prevention and care.

    PubMed

    Lloyd, Emillia C O; Rodgers, Blake C; Michener, Michael; Williams, Michael S

    2012-01-01

    Most burn injuries can be managed on an outpatient basis by primary care physicians. Prevention efforts can significantly lower the incidence of burns, especially in children. Burns should be managed in the same manner as any other trauma, including a primary and secondary survey. Superficial burns can be treated with topical application of lotions, honey, aloe vera, or antibiotic ointment. Partial-thickness burns should be treated with a topical antimicrobial agent or an absorptive occlusive dressing to help reduce pain, promote healing, and prevent wound desiccation. Topical silver sulfadiazine is the standard treatment; however, newer occlusive dressings can provide faster healing and are often more cost-effective. Physicians must reevaluate patients frequently after a burn injury and be aware of the indications for referral to a burn specialist. PMID:22230304

  14. Outpatient treatment of adult asthma.

    PubMed Central

    Kleerup, E C; Tashkin, D P

    1995-01-01

    As a chronic disease with intermittent exacerbations, asthma is treated primarily in the outpatient setting by primary care physicians. Asthma is the result of complex and only partially understood interactions of respiratory, inflammatory, and neural cells and their mediators. The goals of asthma therapy are to prevent and relieve symptoms, allow normal activities of daily living, restore and maintain normal pulmonary function, avoid adverse effects from interventions, and minimize inconvenience and cost. These goals can be achieved through educating patients, assessing and monitoring asthma severity, avoiding or controlling asthma triggers, establishing an intervention plan for routine self-management and the management of exacerbations, and providing regular follow-up care. We present a stepped approach to asthma pharmacotherapy, emphasizing anti-inflammatory therapy--inhaled corticosteroids, cromolyn sodium, or nedocromil sodium--as a summary of recent national and international recommendations. PMID:7667983

  15. Temperature-dependent coherent oscillation in photorefractive relaxor strontium barium

    E-print Network

    Osnabrück, Universität

    Temperature-dependent coherent oscillation in photorefractive relaxor strontium barium niobate M of the photorefractive light-induced scattering (beam fanning) in Sr0.61Ba0.39Nb2O6 (strontium barium niobate) doped

  16. Two barium stars in the Galactic bulge

    E-print Network

    Lebzelter, Thomas; Straniero, Oscar; Aringer, Bernhard

    2013-01-01

    Barium stars conserve important information on the s-process and the third dredge-up in intermediate mass stars. Their discovery in various environments is therefore of great help to test nucleosynthesis and mixing models. Our aim is to analyse two stars with a very strong barium line detected in a large survey of red giants in the Galactic bulge. Abundance analysis was done comparing synthetic model spectra based on the COMARCS code with our medium resolution spectra. Abundances of Ba, La, Y, and Fe were determined. Beside the two main targets, the analysis was also applied to two comparison stars. We confirm that both stars are barium stars. They are the first ones of this kind identified in the Galactic bulge. Their barium excesses are among the largest values found up to now. The elemental abundances are compared with current nucleosynthesis and mixing models. Furthermore, we estimate a frequency of barium stars in the Galactic bulge of about 1%, which is identical to the value for disc stars.

  17. Properties and uses of barium ferrite ceramic magnets

    Microsoft Academic Search

    I. Yu. Gershov

    1963-01-01

    1.Barium ferrite is a promising ceramic material for permanent magnets. It does not include scarce and expensive materials. It has a low density and high coercive force; components with barium ferrite magnets therefore have high stability in operation, and high maximum specific magnetic energy, especially in anisotropic magnets.2.For the successful use of barium ferrite magnets it is essential to consider

  18. Experiments with remote entanglement using single barium ions Nathan Kurz

    E-print Network

    Blinov, Boris

    Experiments with remote entanglement using single barium ions Nathan Kurz A dissertation submitted entanglement using single barium ions Nathan Kurz Chair of the Supervisory Committee: Dr. Boris B. Blinov Physics Department Barium ion qubits are trapped and Doppler cooled in a linear Paul trap and the tasks

  19. Magnetoresistive Conductive Polyaniline-Barium Titanate Nanocomposites with Negative Permittivity

    E-print Network

    Guo, John Zhanhu

    Magnetoresistive Conductive Polyaniline-Barium Titanate Nanocomposites with Negative Permittivity field sensors,10 energy electrodes11 and biosensors.12,13 Barium titanate (BaTiO3) as transition metal Carolina 28301, United States ABSTRACT: Polyaniline (PANI) polymer nanocomposites (PNCs) filled with barium

  20. Ferroelectric Properties of Individual Barium Titanate Nanowires Investigated

    E-print Network

    Heller, Eric

    Ferroelectric Properties of Individual Barium Titanate Nanowires Investigated by Scanned Probe on the ferroelectric properties of individual single-crystalline barium titanate nanowires. We show that nonvolatile report the scanned probe characterization of individual single-crystalline barium titanate (BaTiO3) nano

  1. PHOTOSENSITIVE CENTERS AND CHARGE TRANSFER PROCESSES IN BARIUM CALCIUM TITANATE

    E-print Network

    Malovichko, Galina

    PHOTOSENSITIVE CENTERS AND CHARGE TRANSFER PROCESSES IN BARIUM CALCIUM TITANATE G.MALOVICHKO, V of crystals from barium titanate (BT) family make them promising candidates for various applications@uos.de; vgrachev@uos.de; schirmer@uos.de Abstract The results of the study of charge transfer processes in barium

  2. Compact pulse forming line using barium titanate ceramic material

    Microsoft Academic Search

    Surender Kumar Sharma; P. Deb; R. Shukla; T. Prabaharan; A. Shyam

    2011-01-01

    Ceramic material has very high relative permittivity, so compact pulse forming line can be made using these materials. Barium titanate (BaTiO3) has a relative permittivity of 1200 so it is used for making compact pulse forming line (PFL). Barium titanate also has piezoelectric effects so it cracks during high voltages discharges due to stresses developed in it. Barium titanate is

  3. Surface treatment of barium gallogermanate laser glass

    NASA Astrophysics Data System (ADS)

    Yang, Gang; Qian, Qi; Yang, Zhongmin

    2011-01-01

    The surface of barium gallogermanate glass is modified through HCl solution etching to remove the surface defects and contaminations. The etching process and mechanism for barium gallogermanate glass in hydrochloric acid are investigated, and its optimum conditions are determined. However, the HCl etching induces the insoluble etch product containing minute crystal particles on glass surface. By heating BGG glass at the optical fiber drawing temperature, the deposited surface layer turned to be amorphous again and results in the increase of the transmittance of glass. The results indicated that the HCl etching combined with subsequent high-temperature heat treatment is an effective approach to improve the surface quality of barium gallogermanate glass, which would reduce the optical loss of the final optical fiber.

  4. Intracytoplasmic barium salts in pleural fluid.

    PubMed

    Chan, A C; Collins, R J; Cheung, T K

    1993-10-01

    Cytological examination of the pleural effusion fluid obtained from a 66-yr-old Chinese lady showed numerous intra- and extracytoplasmic colourless refractile non-birefringent crystals. X-ray analysis of the crystals identified barium salts. On further inquiry, it was learnt that the fluid obtained had been placed in a specimen bottle provided by the x-ray department. This container was presumably contaminated with barium salts. The case highlights an unusual aspect of specimen contamination and the usefulness of x-ray analysis in the identification of crystals/substances. PMID:8165010

  5. Electric field tunable 60 GHz ferromagnetic resonance response in barium ferrite-barium strontium titanate multiferroic heterostructures

    E-print Network

    Patton, Carl

    barium strontium titanate films on Nb-doped strontium titanate substrates were capped with an unbondedElectric field tunable 60 GHz ferromagnetic resonance response in barium ferrite-barium strontium titanate multiferroic heterostructures Young-Yeal Song,1,a Jaydip Das,1 Pavol Krivosik,1,2 Nan Mo,1

  6. Outpatient total body irradiation as a component of a comprehensive outpatient transplant program.

    PubMed

    Bredeson, C; Perry, G; Martens, C; McDiarmid, S; Bence-Bruckler, I; Atkins, H; Serna, D; Hopkins, H; Mikhael, J; Genest, P; Huebsch, L

    2002-04-01

    Outpatient total body irradiation (TBI) as part of a comprehensive outpatient transplant program was delivered to 142 of 167 (85%) consecutive patients receiving TBI-based conditioning therapy. Outpatients received either a single fraction of 500 cGy (110 patients) or 1200 cGy in six fractions over 3 days (32 patients). Patients were assessed daily and were administered oral ondansetron and dexamethasone for prophylaxis of nausea and vomiting as well as i.v. hydration. Accommodation during outpatient TBI-based conditioning was either the patient's home if within 30 min of the hospital, a hotel on the hospital grounds or on a closed hospital ward. None of the 142 patients required admission to the inpatient program during their TBI. There was no difference in 100-day mortality between those receiving TBI as an outpatient (9%) vs as an inpatient (16%). Of four deaths occurring within the first 14 days post transplant, none could be attributed to receiving TBI as an outpatient. Two hundred and six inpatient days were saved through the delivery of outpatient TBI. A comprehensive outpatient program, appropriate patient selection, daily hydration, the use of prophylactic 5HT3 antagonist anti-emetic therapy all contribute to the safe delivery of outpatient TBI. PMID:12180111

  7. Barium Titanate and Bismuth Oxide Nanocomposites Barium titanate, BaTiO3, and bismuth oxide Bi2O3 are transparent materials with

    E-print Network

    Harmon, Julie P.

    Barium Titanate and Bismuth Oxide Nanocomposites Barium titanate, BaTiO3, and bismuth oxide Bi2O3 Wall in Tetragonal Barium Titanate", H. Chaib, F. Schlaphof, T. Otto and L. M. Eng, Journal of Physics

  8. Electric Tuning of Ferromagnetic Resonances in Hexagonal-Barium-Ferrite\\/Barium-Strontium-Titanate Heterostructures

    Microsoft Academic Search

    Young-Yeal Song; Jaydip Das; Pavol Krivosik; Hyung-Kee Seo; Mingzhong Wu

    2010-01-01

    This letter reports the first demonstration of a monolithic heterostructure with a large electric tuning of the ferromagnetic resonance (FMR) at millimeter-wave frequencies. The structure is composed of a barium-strontium-titanate (BST) film and two thin platinum electrodes, all grown on a barium ferrite slab with in-plane uniaxial anisotropy. The electric tuning of the FMR responses around 60 GHz was obtained

  9. Investigations on barium ferrite magnetic thin films

    Microsoft Academic Search

    Wenjie Pang; Hong Sun

    2002-01-01

    Summary form only given. Barium ferrite thin films are promising candidates for both longitudinal and perpendicular recording media. It is important to understand the time dependent phenomena in these thin films as many of the critical properties of magnetic recording media are directly related to it. The time dependent phenomenon is also known as magnetic viscosity. The magnetic viscosity parameter,

  10. STABILIZED BARIUM TITANATE CERAMICS FOR CAPACITOR DIELECTRICS

    Microsoft Academic Search

    J. B. MacChesney; P. K. Gallagher; F. V. DiMarcello

    1963-01-01

    The effects of additions of LaâOâ and LaâOâ--; 3TiOâ on the electronic properties of barium titanate were investigated. ; It was found that small additions of the components markedly increase the ; lifetime of the material subjected to d-c fields of 50 v per mil at 200 l ; C. (auth);

  11. Phase associations of barium in marine sediments

    Microsoft Academic Search

    Meagan Eagle Gonneea; Adina Paytan

    2006-01-01

    Barium (Ba) is associated with various phases in marine sediments, including carbonates, organic matter, opal, ferromanganese oxyhydroxides, terrestrial silicates and other detrital material, and barite. Using samples representing sediments from a wide variety of sedimentary environments and export production regimes, we show that there is a considerable range in Ba concentrations associated with five operationally defined phases using a sequential

  12. A novel alternative for renal replacement therapy: 2-year successful colonic dialysis via a Malone antegrade continent enema stoma.

    PubMed

    Kajbafzadeh, Abdol-Mohammad; Zeinoddini, Atefeh; Heidari, Reza; NaserHodjjati, Haleh; Tourchi, Ali

    2014-06-01

    This study is a case report of home-based colonic dialysis (CD) for treating end-stage renal disease in a 20-year-old woman. She had a history of Malone antegrade continence enema (MACE) for treating neuropathic bowel at the age of 11 years. The patient refused any type of renal replacement therapy. However, she agreed to CD through the MACE stoma by changing the colonic irrigation solution to the peritoneal dialysis solution. The patient was discharged with a plasma creatinine (Cr) level of 1.7 mg/dL and blood urea nitrogen (BUN) level of 8 mg/dL. She has continued CD on a regular basis at home. The patient's serum Cr and BUN has remained in the steady low state during 24 months of follow-up (mean Cr level = 2.8 mg/dL and mean BUN level = 10.7 mg/dL). PMID:24345419

  13. Trapped Barium Ions for Quantum ComputationTrapped Barium Ions for Quantum Computation V.Mirgon, G.Shu, A.Avril, M.Dietrich N.Kurz, E. Shahar, and B.B.Blinov

    E-print Network

    Blinov, Boris

    Trapped Barium Ions for Quantum ComputationTrapped Barium Ions for Quantum Computation V.Mirgon, G of Washington Seattle WA 98195 Trapped Barium Ions for Quantum ComputationTrapped Barium Ions for Quantum

  14. 42 CFR 414.1105 - Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services. 414...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) Services § 414...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services....

  15. 42 CFR 414.1105 - Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services. 414...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) Services § 414...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services....

  16. 42 CFR 414.1105 - Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services. 414...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) Services § 414...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services....

  17. 42 CFR 414.1105 - Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services. 414...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) Services § 414...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services....

  18. 42 CFR 414.1105 - Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services. 414...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) Services § 414...Payment for Comprehensive Outpatient Rehabilitation Facility (CORF) services....

  19. 77 FR 24409 - Medicare and Medicaid Programs: Hospital Outpatient Prospective Payment; Ambulatory Surgical...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-24

    ...Medicaid Programs: Hospital Outpatient Prospective Payment; Ambulatory Surgical Center...Medicaid Programs: Hospital Outpatient Prospective Payment; Ambulatory Surgical Center...Medicaid Programs: Hospital Outpatient Prospective Payment; Ambulatory Surgical...

  20. Medicare's fee schedule for hospital outpatient care.

    PubMed

    Grimaldi, Paul L

    2002-01-01

    Medicare's hospital outpatient prospective payment system (OPPS) went live on August 1, 2000, after a decade of developmental work. The new system introduced a fee schedule that replaced the cost-related methods that Medicare previously used to reimburse various hospital outpatient services. Hospitals are now paid predetermined rates or fees based on the Ambulatory Patient Classification (APC) groups assigned to the services that Medicare patients receive during outpatient encounters. The new system aims to simplify Medicare's intricate cost-based reimbursement policies, improve hospital efficiency, ensure that payments are sufficient to compensate hospitals for reasonable Medicare costs, and reduce Medicare coinsurance amounts for beneficiaries. Implementation of OPPS-related administrative and operational changes has been a major challenge for hospitals. PMID:12079149

  1. Outpatient tubeless percutaneous nephrolithotomy and concomitant cystolitholapaxy

    PubMed Central

    Lehmann, Kyle J.; Beiko, Darren

    2014-01-01

    Percutaneous nephrolithotomy (PCNL) is a widely employed endourologic procedure to remove renal stones. Traditionally, PCNL has been performed on an inpatient basis, with patients routinely hospitalized postoperatively. Given the ongoing rising healthcare costs, a shift toward outpatient surgery is desirable. We report the case of a 21-year-old female who was safely discharged a few hours following uncomplicated tubeless PCNL and concomitant cystolitholapaxy for a stent with encrustation on its distal coil. To the best of our knowledge, this is the first published case of tubeless PCNL with concomitant cystolitholapaxy performed on an entirely outpatient basis. PMID:24678360

  2. Ultrafast laser inscription of bistable and reversible waveguides in strontium barium niobate crystals

    E-print Network

    Ultrafast laser inscription of bistable and reversible waveguides in strontium barium niobate optical channel waveguides in strontium barium niobate nonlinear ferroelectric crystals by direct barium niobate SBN crystal because of its prime importance in modern photonics due to its nonlinear

  3. Enhanced dielectric properties from barium strontium titanate films with strontium titanate buffer layers

    E-print Network

    Alpay, S. Pamir

    Enhanced dielectric properties from barium strontium titanate films with strontium titanate buffer in their PE state. One of the leading material candidates for tunable materials is barium strontium titanate- tive amounts of Ba and Sr. TC for pure barium t

  4. Engineering domain configurations for enhanced piezoelectricity in barium titanate single crystals

    E-print Network

    Li, Jiangyu

    Engineering domain configurations for enhanced piezoelectricity in barium titanate single crystals piezoelectric responses of barium titanate single crystals under different crystallographic orientations, and use it to explain the ultrahigh piezoelectric response recently observed in a 270 cut barium titanate

  5. Band-Spectrum of Barium Oxide

    Microsoft Academic Search

    Albin Lagerqvist; Erland Lind; R. F. Barrow

    1949-01-01

    THE introduction of barium salts to flames or arcs leads, in presence of oxygen, to the production of a characteristic band-spectrum attributed to BaO. Mecke and Guillery1 derived a band-head equation. Mahanti2 gave a new vibrational analysis and also made a rotational analysis. From this the spectrum was shown to arise from a 1Sigma - 1Sigma transition with B'e =

  6. Mn2+, Ti4+ substituted barium ferrite

    Microsoft Academic Search

    G. Turilli; F. Licci; S. Rinaldi; A. Deriu

    1986-01-01

    The substitution of iron by manganese in M-type barium ferrite BaFe12O19 has been investigated with the aim of elucidating its effect on the magnetic and magnetostrictive properties. Substitution of up to 0.4 manganese atoms per unit formula did not affect the magnetization whilst the anisotropy and magnetostriction decreased by 30% and 20%, respectively. Higher manganese contents gave rise to large

  7. Barium ferrite films grown by laser ablation

    Microsoft Academic Search

    A. Lisfia; J. C. Lodder; P. de Haan; M. A. Smithers; F. J. G. Roesthuis

    1998-01-01

    Pulsed laser ablation (PLA) has been used to grow barium ferrite films on Al2O3 single crystal substrates. When deposition occurs in an oxidising atmosphere at high temperatures, the films are single BaFe12O19 phase, very well oriented with (001) texture, and exhibit a large perpendicular magnetic anisotropy. In this case, the microstructure and the anisotropy orientation are not influenced by variation

  8. New barium ferrite particles: Spherical shape

    Microsoft Academic Search

    Y. K. Hong; H. S. Jung

    1999-01-01

    Pure and ZnTi-doped spherical barium ferrite particles were prepared using two different methods: semicoprecipitation and ultrasonic spray pyrolysis. The ultrasonic spray pyrolysis method was more effective in controlling particle shape. Particle size was in between 0.27 and 0.3 ?m. Coercivity and saturation magnetization were in the range of 1000 to 5000 Oe and 49 to 53 emu\\/g, respectively. Crystallization of

  9. Barium ferrite thin-film recording media

    Microsoft Academic Search

    Xiaoyu Sui; Matthias Scherge; Mark H. Kryder; John E. Snyder; Vincent G. Harris; Norman C. Koon

    1996-01-01

    Both longitudinal and perpendicular barium ferrite thin films are being pursued as overcoatless magnetic recording media. In this paper, prior research on thin-film Ba ferrite is reviewed and the most recent results are presented. Self-textured high-coercivity longitudinal Ba ferrite thin films have been achieved using conventional rf diode sputtering. Microstructural studies show that c-axis in-plane oriented grains have a characteristic

  10. New barium ferrite particles: Spherical shape

    Microsoft Academic Search

    Y. K. Hong; H. S. Jung

    1999-01-01

    Pure and ZnTi-doped spherical barium ferrite particles were prepared using two different methods: semicoprecipitation and ultrasonic spray pyrolysis. The ultrasonic spray pyrolysis method was more effective in controlling particle shape. Particle size was in between 0.27 and 0.3 mum. Coercivity and saturation magnetization were in the range of 1000 to 5000 Oe and 49 to 53 emu\\/g, respectively. Crystallization of

  11. Production of translationally cold barium monohalide ions

    E-print Network

    DePalatis, M V

    2013-01-01

    We have produced sympathetically cooled barium monohalide ions BaX$^+$ (X = F, Cl, Br) by reacting trapped, laser cooled Ba$^+$ ions with room temperature gas phase neutral halogen-containing molecules. Reaction rates for two of these (SF$_6$ and CH$_3$Cl) have been measured and are in agreement with classical models. BaX$^+$ ions are promising candidates for cooling to the rovibrational ground state, and our method presents a straightforward way to produce these polar molecular ions.

  12. Analysis of 26 Barium Stars I. Abundances

    E-print Network

    Dinah M. Allen; Beatriz Barbuy

    2006-04-03

    We present a detailed analysis of 26 barium stars, including dwarf barium stars, providing their atmospheric parameters (Teff, log g, [Fe/H], vt) and elemental abundances. We aim at deriving gravities and luminosity classes of the sample stars, in particular to confirm the existence of dwarf barium stars. Accurate abundances of chemical elements were derived. Abundance ratios between nucleosynthetic processes, by using Eu and Ba as representatives of the r- and s-processes are presented. High-resolution spectra with the FEROS spectrograph at the ESO-1.5m Telescope, and photometric data with Fotrap at the Zeiss telescope at the LNA were obtained. The atmospheric parameters were derived in an iterative way, with temperatures obtained from colour-temperature calibrations. The abundances were derived using spectrum synthesis for Li, Na, Al, alpha-, iron peak, s- and r-elements atomic lines, and C and N molecular lines. Atmospheric parameters in the range 4300 < Teff < 6500, -1.2 < [Fe/H] < 0.0 and 1.4 < log g < 4.6 were derived, confirming that our sample contains giants, subgiants and dwarfs. The abundance results obtained for Li, Al, Na, alpha- and iron peak elements for the sample stars show that they are compatible with the values found in the literature for normal disk stars in the same range of metallicities. Enhancements of C, N and heavy elements relative to Fe, that characterise barium stars, were derived and showed that [X/Ba] vs. [Ba/H] and [X/Ba] vs. [Fe/H] present different behaviour as compared to [X/Eu] vs. [Eu/H] and [X/Eu] vs. [Fe/H], reflecting the different nucleosynthetic sites for the s- and r-processes.

  13. Improving the magnetic properties of hydrothermally synthesized barium ferrite

    Microsoft Academic Search

    Xiangyuan Liu; John Wang; Leong-Ming Gan; Ser-Choon Ng

    1999-01-01

    The formation of fine barium ferrite (BaFe12O19) powders under hydrothermal conditions at [OH?]\\/[NO3?] ratio of 2 has been examined by employing barium nitrate and ferric nitrate as the starting materials. The effects of Ba\\/Fe ratio, reaction temperature and time on the formation, particle size, and magnetic properties of barium ferrite were studied. To further enhance the magnetic properties of hydrothermally

  14. An investigation of particle size effects in ultrafine barium ferrite

    Microsoft Academic Search

    V. K. Sankaranarayanan; Q. A. Pankhurst; D. P. E. Dickson; C. E. Johnson

    1993-01-01

    Ultrafine particles of barium ferrite in the size range 5-100 nm have been synthesized by thermal decomposition of a citrate precursor. The precursor decomposed at 425°C is amorphous, but crystalline barium ferrite starts forming at temperatures of 550°C and above. Barium ferrite which shows a monophase X-ray diffraction pattern and well-resolved Mössbauer spectra is obtained at 700°C. The Mössbauer spectra

  15. Barium hexaferrite suspensions for electrophoretic deposition.

    PubMed

    Ovtar, Simona; Lisjak, Darja; Drofenik, Miha

    2009-09-15

    In this investigation we have looked at the preparation of barium hexaferrite suspensions, with the stability of the magnetic barium hexaferrite particles being increased by the addition of a surfactant, dodecylbenzylsulfonic acid (DBSA). The influence of the solubility DBSA in different solvents and its adsorption onto the surfaces of particles with different sizes were determined from zeta-potential measurements. The most suitable and stable suspensions of barium hexaferrite particles, regardless of their sizes, were obtained in 1-butanol, and these were then used for a subsequent electrophoretic deposition. The microstructures of the deposits were examined with electron microscopy. The thickness and density of the deposits as a function of the electric field, the zeta-potential, the particle size, and the separation distance between the electrodes were investigated. The thickness of the deposits was found to increase with the increasing zeta-potential of the suspension and with the increasing separation distance between the electrodes. Denser deposits were obtained from the suspensions of smaller particles that had narrower particle size distributions. PMID:19541323

  16. Creating unstable velocity-space distributions with barium injections

    NASA Technical Reports Server (NTRS)

    Pongratz, M. B.

    1983-01-01

    Ion velocity-space distributions resulting from barium injections from orbiting spacecraft and shaped charges are discussed. Active experiments confirm that anomalous ionization processes may operate, but photoionization accounts for the production of the bulk of the barium ions. Pitch-angle diffusion and/or velocity-space diffusion may occur, but observations of barium ions moving upwards against gravity suggests that the ions retain a significant enough fraction of their initial perpendicular velocity to provide a mirror force. The barium ion plasmas should have a range of Alfven Mach numbers and plasma betas. Because the initial conditions can be predicted these active experiments should permit testing plasma instability hypotheses.

  17. 38 CFR 17.163 - Posthospital outpatient dental treatment.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...2011-07-01 false Posthospital outpatient dental treatment. 17.163 Section 17.163...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.163 Posthospital outpatient dental treatment. The Chief, Dental...

  18. 38 CFR 17.163 - Posthospital outpatient dental treatment.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...2013-07-01 false Posthospital outpatient dental treatment. 17.163 Section 17.163...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.163 Posthospital outpatient dental treatment. The Chief, Dental...

  19. 38 CFR 17.163 - Posthospital outpatient dental treatment.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...2014-07-01 false Posthospital outpatient dental treatment. 17.163 Section 17.163...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.163 Posthospital outpatient dental treatment. The Chief, Dental...

  20. 38 CFR 17.163 - Posthospital outpatient dental treatment.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...2012-07-01 false Posthospital outpatient dental treatment. 17.163 Section 17.163...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.163 Posthospital outpatient dental treatment. The Chief, Dental...

  1. 38 CFR 17.163 - Posthospital outpatient dental treatment.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...2010-07-01 false Posthospital outpatient dental treatment. 17.163 Section 17.163...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Dental Services § 17.163 Posthospital outpatient dental treatment. The Chief, Dental...

  2. 38 CFR 17.165 - Emergency outpatient dental treatment.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 2011-07-01 false Emergency outpatient dental treatment. 17.165 Section...treatment. When outpatient emergency dental care is provided, as a...treatment. Individuals provided emergency dental care who are found to be...

  3. 38 CFR 17.165 - Emergency outpatient dental treatment.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 2010-07-01 false Emergency outpatient dental treatment. 17.165 Section...treatment. When outpatient emergency dental care is provided, as a...treatment. Individuals provided emergency dental care who are found to be...

  4. 38 CFR 17.165 - Emergency outpatient dental treatment.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 2014-07-01 false Emergency outpatient dental treatment. 17.165 Section...treatment. When outpatient emergency dental care is provided, as a...treatment. Individuals provided emergency dental care who are found to be...

  5. 38 CFR 17.165 - Emergency outpatient dental treatment.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 2012-07-01 false Emergency outpatient dental treatment. 17.165 Section...treatment. When outpatient emergency dental care is provided, as a...treatment. Individuals provided emergency dental care who are found to be...

  6. 38 CFR 17.165 - Emergency outpatient dental treatment.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 2013-07-01 false Emergency outpatient dental treatment. 17.165 Section...treatment. When outpatient emergency dental care is provided, as a...treatment. Individuals provided emergency dental care who are found to be...

  7. Does large-bowel enema reduce septic complications in acute pancreatitis? 1 1 This study was performed in the Experimental Medical Research Center of Selçuk University, Konya, Turkey

    Microsoft Academic Search

    Serdar Yol; Mahmut Baykan; ?ükrü Özer; Mehmet Aköz; Osman Yilmaz; Cüneyt Kuru

    1998-01-01

    BACKGROUND: The source of septic complications in acute pancreatitis was unknown until recent years. The pathogenesis of bacterial translocation from the gut has been accepted as the main source of pancreatic or peripancreatic infection. This study was designed to investigate the role of large bowel enema during acute pancreatitis in preventing bacterial translocation.MATERIALS AND METHODS:Twenty-four Spraque-Dawley rats were used in

  8. Outpatient thoracoscopic limited sympathectomy for hyperhidrosis palmaris

    Microsoft Academic Search

    Jiun-Yi Hsia; Chih-Yi Chen; Chung-Ping Hsu; Sen-Ei Shai; Shyh-Sheng Yang

    1999-01-01

    Thoracoscopic sympathectomy is considered the most effective treatment for hyperhidrosis palmaris. We have treated 1,043 cases of this disease by this method. We have developed an outpatient technique of thoracoscopic sympathectomy using electrocautery. This procedure has been used in 47 patients with hyperhidrosis palmaris. The early results have been favorable. We describe this fast, safe, economic, and effective method for

  9. Meperidine surveillance in an outpatient department

    Microsoft Academic Search

    Roger Glass; Steven Schonfeld; Vito Rocco

    1979-01-01

    The identification of two patients who were misusing meperidine prescribed in a hospital prompted the establishment of a surveillance system to examine the possible extent of the problem of prescription narcotic abuse. All outpatient prescriptions for meperidine in a six-month period were reviewed and 17 high users were identified who were considered to be at greatest risk of misuse; they

  10. An evaluation of flexible fibreoptic sigmoidoscopy.

    PubMed Central

    Vellacott, K D; Hardcastle, J D

    1981-01-01

    Results of 350 flexible fibreoptic sigmoidoscopy examinations showed a diagnostic yield of 30% compared with 6.5% by rigid sigmoidoscopy of the same patients. The mean time for the examinations was eight minutes, a distance of over 50 cm being visualised in 65% of the patients. Preparation of the bowel with a single phosphate enema was adequate in 95% of the patients. As an outpatient investigation for clinicians fibreoptic sigmoidoscopy is a safe, quick, and useful addition to rigid sigmoidoscopy and should result in a decrease in the number of barium enema examinations required. PMID:6796178

  11. Outpatient tubeless percutaneous nephrolithotomy: the initial case series

    Microsoft Academic Search

    Darren Beiko; Linda Lee

    2010-01-01

    Introduction: Percutaneous nephrolithotomy (PCNL) has tradi- tionally been performed on an inpatient basis. To the best of our knowledge, this is the first report of tubeless PCNL on a completely outpatient basis. The purposes of this study were to assess the safety and efficacy of outpatient PCNL. Methods: We reviewed the initial consecutive outpatient tubeless PCNLs performed at our institution

  12. 42 CFR 410.37 - Colorectal cancer screening tests: Conditions for and limitations on coverage.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...personal history of colorectal cancer; or (vi) Inflammatory bowel disease, including Crohn's Disease, and ulcerative colitis. (4) Screening barium enema means— (i) A screening double contrast barium enema of the entire...

  13. 42 CFR 410.37 - Colorectal cancer screening tests: Conditions for and limitations on coverage.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...personal history of colorectal cancer; or (vi) Inflammatory bowel disease, including Crohn's Disease, and ulcerative colitis. (4) Screening barium enema means— (i) A screening double contrast barium enema of the entire...

  14. 42 CFR 410.37 - Colorectal cancer screening tests: Conditions for and limitations on coverage.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...personal history of colorectal cancer; or (vi) Inflammatory bowel disease, including Crohn's Disease, and ulcerative colitis. (4) Screening barium enema means— (i) A screening double contrast barium enema of the entire...

  15. 42 CFR 410.37 - Colorectal cancer screening tests: Conditions for and limitations on coverage.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...personal history of colorectal cancer; or (vi) Inflammatory bowel disease, including Crohn's Disease, and ulcerative colitis. (4) Screening barium enema means— (i) A screening double contrast barium enema of the entire...

  16. BARIUM IN TEETH AS INDICATOR OF BODY BURDEN

    EPA Science Inventory

    A study was conducted to determine the biological availability of naturally occurring barium in a municipal drinking water by the analysis of barium in deciduous teeth of children. The grade school children of two Illinois towns were chosen for the study. The towns were chosen ba...

  17. Laser Cooled Single Ion Spectroscopy of Magnesium and Barium

    Microsoft Academic Search

    Gary Robert Janik

    1984-01-01

    Individual ions of magnesium and barium have been isolated and confined in RF traps in an ultra high vacuum environment. The ion motion has been cooled by means of a resonant laser excitation. The single ions were detected by their laser induced fluorescence. The kinetic temperature of magnesium was measured to be less than 200 millidegrees Kelvin. In barium, a

  18. The application of barium ferrite particles in advanced recording media

    Microsoft Academic Search

    M. P. Sharrock; L. W. Carlson

    1995-01-01

    Barium ferrite is a leading candidate material for advanced magnetic recording media. Tapes and disks made with it offer output amplitudes at recording densities of current interest (75-100 kfci) that far exceed those of advanced acicular oxides and are comparable to those of many commercially available media made with metallic particles (MP). The very high coercivity values available with barium

  19. M-Type Barium Hexagonal Ferrite Films Mingzhong Wu

    E-print Network

    -type barium hexagonal ferrite BaFe12O19 (BaM) films as a replacement for those magnetic garnets. BaM films can2 M-Type Barium Hexagonal Ferrite Films Mingzhong Wu Department of Physics, Colorado State University, Fort Collins, USA 1. Introduction Magnetic garnet materials such as yttrium iron garnet (YIG

  20. Recording performance of longitudinal barium ferrite thin film media

    Microsoft Academic Search

    Xiaoyu Sui; A. Singh; Yinglian Chen; D. N. Lambeth; M. K. Krydeer

    1995-01-01

    The high density recording characteristics of barium ferrite thin film media have been investigated. High levels of overwrite are achieved. Media microstructures have been identified to have a close relation to the noise behavior in the barium ferrite thin films. A linear increase in noise spectra is observed, indicating the existence of transition noise. In addition, positive ?M peaks are

  1. Thermal decomposition of (BaTi) citrates into barium titanate

    Microsoft Academic Search

    D. Hennings; W. Mayr

    1978-01-01

    From aqueous solutions of barium and titanium citrates two different (BaTi) citrate salts can be precipitated, depending on the pH of the solution. The ratio of barium to titanium in the salts is either 1 : 1 or 2 : 1. The thermal decomposition of the salts was investigated by means of DTA, TGA, infrared spectroscopy, and X-ray diffraction. At

  2. Explanation of the apparent sublinear photoconductivity of photorefractive barium titanate

    Microsoft Academic Search

    Daniel Mahgerefteh; Jack Feinberg

    1990-01-01

    We explain the apparent sublinear intensity dependence of photoconductivity in barium titanate. In our model shallow acceptors act as a reservoir for charges optically excited from the donors. As this reservoir fills, the fraction of occupied donors changes appreciably, changing the lifetime of the free carriers. We identify two types of barium titanate crystals having quite different photorefractive characteristics, depending

  3. Barium strontium titanate powder obtained by polymeric precursor method

    SciTech Connect

    Ries, A.; Simoes, A.Z.; Cilense, M.; Zaghete, M.A.; Varela, J.A

    2003-03-15

    Pure barium strontium titanate powder, with Ba/Sr ratio of 80/20 was prepared by the polymeric precursor method (also called Pechini process). The powder was obtained after a calcination at 800 deg. C for 8 h and characterized by XRD, IR, BET and SEM. The requirements to avoid barium carbonate as a secondary phase are presented and discussed in detail.

  4. Barium Enhancement in NGC 6819 Blue Stragglers

    NASA Astrophysics Data System (ADS)

    Milliman, Katelyn; Mathieu, Robert D.; Schuler, Simon C.

    2015-01-01

    Possible formation pathways for blue straggler stars include mergers in hierarchical triple systems, stellar collisions during dynamical encounters, and mass transfer from a giant companion. Extensive work on the blue stragglers in the old open cluster NGC 188 (7 Gyr) has led to exciting discoveries including a binary secondary mass distribution peaked at 0.5 MSolar and the detection of three young white dwarf binary companions. These indicate that mass transfer from an asymptotic giant branch star is the dominant mechanism for blue straggler formation in open clusters. Such mass transfer events should pollute the surface abundance of the blue straggler with nucleosynthesis products from the evolved donor. The other formation pathways, mergers and collisions, are predicted to produce no such enhancements. In an effort to move beyond NGC 188 and into other open clusters we present the first results of a surface abundance study of the blue stragglers in the intermediate-aged open cluster NGC 6819 (2.5 Gyr) using the Hydra multi-object spectrograph on the WIYN 3.5 m telescope. This part of our study centers on the s-process element barium as a tracer of formation via mass transfer. We compare the blue straggler surface abundance of barium to that of a sample of main-sequence stars in NGC 6819 and find multiple blue stragglers with anomalous abundances. Surprising, most of the blue stragglers with barium anomalies show no radial-velocity evidence for a companion. We gratefully acknowledge funding from the National Science Foundation under grant AST- 0908082 and the Wisconsin Space Grant Consortium.

  5. Scattering lengths of calcium and barium isotopes

    SciTech Connect

    Dammalapati, U.; Willmann, L.; Knoop, S. [Kernfysisch Versneller Instituut (KVI), University of Groningen, Zernikelaan 25, 9747 AA Groningen (Netherlands); LaserLaB Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam (Netherlands)

    2011-11-15

    We have calculated the s-wave scattering length of all the even isotopes of calcium (Ca) and barium (Ba) in order to investigate the prospect of Bose-Einstein condensation (BEC). For Ca we have used an accurate molecular potential based on detailed spectroscopic data. Our calculations show that Ca does not provide other isotopes alternative to the recently Bose condensed {sup 40}Ca that suffers strong losses because of a very large scattering length. For Ba we show by using a model potential that the even isotopes cover a broad range of scattering lengths, opening the possibility of BEC for at least one of the isotopes.

  6. Europium-doped barium bromide iodide

    SciTech Connect

    Gundiah, Gautam; Hanrahan, Stephen M.; Hollander, Fredrick J.; Bourret-Courchesne, Edith D.

    2009-10-21

    Single crystals of Ba0.96Eu0.04BrI (barium europium bromide iodide) were grown by the Bridgman technique. The title compound adopts the ordered PbCl2 structure [Braekken (1932). Z. Kristallogr. 83, 222-282]. All atoms occupy the fourfold special positions (4c, site symmetry m) of the space group Pnma with a statistical distribution of Ba and Eu. They lie on the mirror planes, perpendicular to the b axis at y = +-0.25. Each cation is coordinated by nine anions in a tricapped trigonal prismatic arrangement.

  7. Europium-doped barium bromide iodide.

    PubMed

    Gundiah, Gautam; Hanrahan, Stephen M; Hollander, Frederick J; Bourret-Courchesne, Edith D

    2009-01-01

    Single crystals of Ba(0.96)Eu(0.04)BrI (barium europium bromide iodide) were grown by the Bridgman technique. The title compound adopts the ordered PbCl(2) structure [Braekken (1932 ?). Z. Kristallogr.83, 222-282]. All atoms occupy the fourfold special positions (4c, site symmetry m) of the space group Pnma with a statistical distribution of Ba and Eu. They lie on the mirror planes, perpendicular to the b axis at y = ±0.25. Each cation is coordinated by nine anions in a tricapped trigonal prismatic arrangement. PMID:21578035

  8. Short-cavity squeezing in barium

    NASA Technical Reports Server (NTRS)

    Hope, D. M.; Bachor, H-A.; Manson, P. J.; Mcclelland, D. E.

    1992-01-01

    Broadband phase sensitive noise and squeezing were experimentally observed in a system of barium atoms interacting with a single mode of a short optical cavity. Squeezing of 13 +/- 3 percent was observed. A maximum possible squeezing of 45 +/- 8 percent could be inferred for out experimental conditions, after correction for measured loss factors. Noise reductions below the quantum limit were found over a range of detection frequencies 60-170 MHz and were best for high cavity transmission and large optical depths. The amount of squeezing observed is consistent with theoretical predictions from a full quantum statistical model of the system.

  9. Scattering lengths of calcium and barium isotopes

    E-print Network

    U. Dammalapati; L. Willmann; S. Knoop

    2011-10-25

    We have calculated the s-wave scattering length of all the even isotopes of calcium (Ca) and barium (Ba), in order to investigate the prospect of Bose-Einstein condensation (BEC). For Ca we have used an accurate molecular potential based on detailed spectroscopic data. Our calculations show that Ca does not provide other isotopes alternative to the recently Bose condensed 40Ca that suffers strong losses because of a very large scattering length. For Ba we show by using a model potential that the even isotopes cover a broad range of scattering lengths, opening the possibility of BEC for at least one of the isotopes.

  10. Dielectric properties of barium titanate supramolecular nanocomposites.

    PubMed

    Lee, Keun Hyung; Kao, Joseph; Parizi, Saman Salemizadeh; Caruntu, Gabriel; Xu, Ting

    2014-04-01

    Nanostructured dielectric composites can be obtained by dispersing high permittivity fillers, barium titanate (BTO) nanocubes, within a supramolecular framework. Thin films of BTO supramolecular nanocomposites exhibit a dielectric permittivity (?r) as high as 15 and a relatively low dielectric loss of ?0.1 at 1 kHz. These results demonstrate a new route to control the dispersion of high permittivity fillers toward high permittivity dielectric nanocomposites with low loss. Furthermore, the present study shows that the size distribution of nanofillers plays a key role in their spatial distribution and local ordering and alignment within supramolecular nanostructures. PMID:24584569

  11. Antidepressant Prescribing Practices of Outpatient Psychiatrists

    Microsoft Academic Search

    Mark Olfson; Steve C. Marcus; Harold Alan Pincus; Julie M. Zito; James W. Thompson; Deborah A. Zarin

    1998-01-01

    Results: The proportion of outpatient psychiatric vis- its in which an antidepressant was prescribed increased from 23.1% (95% confidence interval (CI), 19.7%- 26.5%) in 1985 to 48.6% (95% CI, 47.5%-49.7%) in 1993- 1994. After controlling for several patient variables, psy- chiatric patients were approximately 2.3 (95% CI, 1.8- 2.9) times more likely to receive an antidepressant in 1993- 1994 than

  12. Barium ferrite powders prepared by microwave-induced hydrothermal reaction and magnetic property

    Microsoft Academic Search

    Tomohisa Yamauchi; Yasunori Tsukahara; Takao Sakata; Hirotaro Mori; Tsukasa Chikata; Shunsaku Katoh; Yuji Wada

    2009-01-01

    We have prepared barium ferrite particles by the microwave-induced hydrothermal method. The crystallization of the barium ferrite particles is promoted within a short time by microwave irradiation because the seeds of barium ferrite having large permeability are rapidly heated through the interaction of barium ferrite with the magnetic component of the microwaves. Crystals having unusually low thickness were obtained compared

  13. Earthquake-induced barium anomalies in the Lisan Formation, Dead Sea Rift valley, Israel

    E-print Network

    Marco, Shmuel "Shmulik"

    Earthquake-induced barium anomalies in the Lisan Formation, Dead Sea Rift valley, Israel Amitai Editor: L. Stixrude Keywords: barium Dead Sea seismite earthquake Lisan recurrence rate Prominent barium The present paper is a rst report of prominent barium concen- tration anomalies in seismically perturbed

  14. Fluid seepage along the San Clemente Fault scarp: basin-wide impact on barium cycling

    E-print Network

    Huh, Chih-An

    Fluid seepage along the San Clemente Fault scarp: basin-wide impact on barium cycling Marta E present evidence that the barium released at cold seeps along the San Clemente Fault zone may significantly impact the geochemical budget of barium within the basin. Barium fluxes at seep localities

  15. Hygienic importance of increased barium content in some fresh waters.

    PubMed

    Havlík, B; Hanusová, J; Rálková, J

    1980-01-01

    In surface waters of the mining and processing areas of uranium ore there is an increased content of free and bound barium ions due to the use of barium salts for the treatment of waste and mine waters containing radium. In model experiments with the algae Ankistrodesmus falcatus, Chlorella kessleri and Scenedesmus obliquus, we studied the effect of Ba2+ on the accumulation of 226Ra. It was found that the accumulation of radium by algae is negatively influenced with barium concentrations higher than 1 mg.l-1. The accumulation of barium of organisms of primary production was studied using 133BaCl2. At a barium content in the medium of 4.0, 0.46 and 0.04 mu. l-1, the algae accumulated 30-60% of the added amount of barium during an exposure of 15 days. Biochemical analyses showed that barium is bound to the cellular membrane and to other components of the algal cell that cannot be extracted with water or alcohol. PMID:7462608

  16. Do all barium stars have a white dwarf companion?

    NASA Technical Reports Server (NTRS)

    Dominy, J. F.; Lambert, D. L.

    1983-01-01

    International Ultraviolet Explorer short-wavelength, low-dispersion spectra were analyzed for four barium, two mild barium, and one R-type carbon star in order to test the hypothesis that the barium and related giants are produced by mass transfer from a companion now present as a white dwarf. An earlier tentative identification of a white dwarf companion to the mild barium star Zeta Cyg is confirmed. For the other stars, no ultraviolet excess attributable to a white dwarf is seen. Limits are set on the bolometric magnitude and age of a possible white dwarf companion. Since the barium stars do not have obvious progenitors among main-sequence and subgiant stars, mass transfer must be presumed to occur when the mass-gaining star is already on the giant branch. This restriction, and the white dwarf's minimum age, which is greater than 8 x 10 to the 8th yr, determined for several stars, effectively eliminates the hypothesis that mass transfer from an asymptotic giant branch star creates a barium star. Speculations are presented on alternative methods of producing a barium star in a binary system.

  17. Microstructure and magnetism in barium strontium titanate (BSTO)-barium hexaferrite (BaM) multilayers

    SciTech Connect

    Frey, N.A. [Materials Physics Laboratory, Physics Department, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620 (United States); Heindl, R. [Materials Physics Laboratory, Physics Department, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620 (United States); Srinath, S. [Materials Physics Laboratory, Physics Department, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620 (United States); Srikanth, H. [Materials Physics Laboratory, Physics Department, University of South Florida, 4202 East Fowler Avenue, Tampa, FL 33620 (United States)]. E-mail: sharihar@cas.usf.edu; Dudney, N.J. [Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831 (United States)

    2005-08-11

    High quality multilayers of barium ferrite (BaM) and barium strontium titanate (BSTO) were grown in optimized conditions on thermally oxidized Si(1 0 0) and Al{sub 2}O{sub 3} substrates using magnetron sputtering. As-grown films were amorphous and different annealing procedures were explored to stabilize crystalline phases. BSTO and BaM phases were identified using X-ray diffraction and cross-sectional scanning electron micrographs showed sharp interfaces between BSTO and BaM layers. Magnetic hysteresis loops obtained at various temperatures and field orientations showed a large coercivity ({approx}2500 Oe) consistent with the hard magnetic hexaferrite component. Hysteresis loops also revealed the distinct influence of magnetocrystalline and shape anisotropies at different temperature ranges.

  18. Migration and redistribution of oxygen vacancy in barium titanate ceramics

    SciTech Connect

    Chen, L.; Xiong, X. M.; Meng, H.; Lv, P.; Zhang, J. X. [State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275 (China)

    2006-08-14

    Degradation of barium titanate based multilayer capacitor mainly results from migration and redistribution of oxygen vacancy. For barium titanate ceramics, the authors observe an internal friction relaxation peak around 70 deg. C due to oxygen vacancy, and its relaxation strength differs greatly for specimen aged at 85 deg. C for 120 h and at 150 deg. C for 5 h. Two possible explanations are proposed, one based on symmetry-conforming short-range order while the other on the interaction between oxygen vacancy and domain wall during aging process. In any case, relaxation thermodynamics is a powerful tool to investigate the migration and redistribution of oxygen vacancy in barium titanate ceramics.

  19. Designed microstructures in textured barium hexaferrite

    NASA Astrophysics Data System (ADS)

    Hovis, David Brian

    It is a fundamental principle of materials science that the microstructure of a material defines its properties and ultimately its performance for a given application. A prime example of this can be found in the large conch shell Strombus gigas, which has an intricate microstructure extending across five distinct length scales. This microstructure gives extraordinary damage tolerance to the shell. The structure of Strombus gigas cannot be replicated in a modern engineering ceramic with any existing processing technique, so new processing techniques must be developed to apply this structure to a model material. Barium hexaferrite was chosen as a model material to create microstructures reminiscent of Strombus gigas and evaluate its structure-property relations. This work describes novel processing methods to produce textured barium hexaferrite with no coupling between the sample geometry and the texture direction. This technique, combining magnetic field-assisted gelcasting with templated grain growth, also allows multilayer samples to be fabricated with different texture directions in adjacent layers. The effects of adding either B2O3 or excess BaCO 3 on the densification and grain growth of barium hexaferrite was studied. The texture produced using this technique was assessed using orientation imaging microscopy (OIM) at Oak Ridge National Laboratory. These measurements showed peak textures as high as 60 MRD and sharp interfaces between layers cast with different texture directions. The effect of oxygen on the quality of gelcasting is also discussed, and it is shown that with proper mold design, it is possible to gelcast multiple layers with differing texture directions without delamination. Monolithic and multilayer samples were produced and tested in four point bending to measure the strength and work of fracture. Modulus measurements, made with the ultrasonic pulse-echo technique, show clear signs of microcracking in both the isotropic and textured samples. Both the strength and work of fracture were shown to be affected by the texture direction. The multilayer samples did not show significant improvements in either strength or work of fracture, but they did show much less variability than the monolithic samples.

  20. A novel colonoscopic approach for the management of a Malone antegrade continence enema channel, which cannot be catheterized in the immediate postoperative period: a case report.

    PubMed

    Szymanski, Konrad M; Keenan, Alison; Cain, Mark P; Waseem, Shamaila; Kaefer, Martin

    2014-12-01

    Early Malone antegrade continence enema (MACE) complications are rare, but can be devastating, particularly if they involve loss of the channel. Management of these complications is not well described. We report on a patient who had her MACE channel successfully salvaged in the immediate postoperative period using a colonoscopic retrograde wire and catheter placement after failing antegrade percutaneous endoscopic management. To our knowledge, this is the first report of a novel, colonoscopic, minimally invasive technique of managing select MACE channels, which cannot be otherwise recatheterized. We also review the management of postoperative MACE complications. PMID:25306482

  1. Magnetic properties of substituted barium ferrite powders

    SciTech Connect

    Gruskova, A. [Slovak Univ. of Technology, Bratislava (Slovakia). Dept. of Electrotechnology] [Slovak Univ. of Technology, Bratislava (Slovakia). Dept. of Electrotechnology

    1994-03-01

    Hexagonal barium ferrites were prepared using the citrate method. Cobalt and titanium were added in the amounts x from 0.2 to 1.1 ion/f.u. related to the formula BaCo{sub x}Ti{sub x}Fe{sub 12{minus}2x}O{sub 19}. The heat treatment has been applied in three steps of 550 C/5 hrs, 850 C/2 hrs and 1,100 C/2 hrs. The following magnetic properties have been achieved: H{sub c} {approximately} 80 kA/m, J{sub s} {approximately} 120 {times} 10{sup {minus}6} Tkg{sup {minus}1} m{sup 3}, and J{sub r} {approximately} 60 {times} 10{sup {minus}6} Tkg{sup {minus}1} m{sup 3} in the composition for which x is equal to 0.5 ion/f.u. The magnetic parameters have been measured by the vibration magnetometer.

  2. Theoretical isotope shifts in neutral barium

    E-print Network

    Nazé, Cédric; Godefroid, Michel

    2015-01-01

    The present work deals with a set of problems in isotope shifts of neutral barium spectral lines. Some well known transitions ($6s^2~^1S_0-6s6p~^{1,3}P^o_1$ and $6s^2~^1S_0-6p^2~^3P_0$) are first investigated. Values of the changes in the nuclear mean-square charge radius are deduced from the available experimental isotope shifts using our ab initio electronic factors. The three sets $\\{ \\delta\\langle r^2\\rangle^{A,A'}\\} $ obtained from these lines are consistent with each other. The combination of the available nuclear mean-square radii with our electronic factors for the $6s5d~^3D_{1,2} -6s6p~^{1}P^o_1$ transitions produces isotope shift values in conflict with the laser spectroscopy measurements of Dammalapati et al. (Eur. Phys. J. D 53, 1 (2009)).

  3. A triangular heterometallic siloxide containing barium

    SciTech Connect

    Coan, P.S.; Streib, W.E.; Caulton, K.G. (Indiana Univ., Bloomington (United States))

    1991-12-25

    Reaction of KOSiPh[sub 3] with Ba[sub 3](OSiPh[sub 3])[sub 6](THF) in THF displaces barium from the triangular reagent to yield a colorless solid. Recrystallization in the presence of MeOC[sub 2]H[sub 4]OMe(DME) yields KBa[sub 2](OSiPh[sub 3])[sub 5](DME)[sub 2], characterized by [sup 1]H and [sup 29]Si NMR spectroscopy and X-ray diffraction. The molecule contains a triangular KBa[sub 2]([mu][sub 3]-OSiPh[sub 3])[sub 2]([mu][sub 2]-OSiPh[sub 3])[sub 3] core with [eta][sup 1] and [eta][sup 2]-DME ligation on each barium. The benzene-soluble molecule is fluxional in solution at both the OSiPh[sub 3] and the DME groups. At -70C in CH[sub 2]Cl[sub 2]/C[sub 6]D[sub 6], both [eta][sup 1]-DME/[eta][sup 2]-DME site exchange and intramolecular siloxide migration have been slowed, and the spectra are in agreement with retention of the solid-state structure in solution. Crystallographic data for KBa[sub 2](OSiPh[sub 3])[sub 5](DME)[sub 2] (-159C): a = 15.474 (3) [angstrom], b = 26.466 (6) [angstrom], c = 23.783 (5) [angstrom], [beta] = 99.80 (1)[degree] with Z = 4 in space group P2[sub 1]/n.

  4. 42 CFR 419.22 - Hospital outpatient services excluded from payment under the hospital outpatient prospective...

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Hospital outpatient services furnished to SNF residents (as defined in § 411.15...care plan (and thus included under the SNF PPS) that are furnished by the hospital “under arrangements” but billable only by the SNF, regardless of whether or not the...

  5. 42 CFR 419.22 - Hospital outpatient services excluded from payment under the hospital outpatient prospective...

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Hospital outpatient services furnished to SNF residents (as defined in § 411.15...care plan (and thus included under the SNF PPS) that are furnished by the hospital “under arrangements” but billable only by the SNF, regardless of whether or not the...

  6. 42 CFR 419.22 - Hospital outpatient services excluded from payment under the hospital outpatient prospective...

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Hospital outpatient services furnished to SNF residents (as defined in § 411.15...care plan (and thus included under the SNF PPS) that are furnished by the hospital “under arrangements” but billable only by the SNF, regardless of whether or not the...

  7. Upper gastrointestinal barium evaluation of duodenal pathology: A pictorial review.

    PubMed

    Gupta, Pankaj; Debi, Uma; Sinha, Saroj Kant; Prasad, Kaushal Kishor

    2014-08-28

    Like other parts of the gastrointestinal tract (GIT), duodenum is subject to a variety of lesions both congenital and acquired. However, unlike other parts of the GIT viz. esophagus, rest of the small intestine and large intestine, barium evaluation of duodenal lesions is technically more challenging and hence not frequently reported. With significant advances in computed tomography technology, a thorough evaluation including intraluminal, mural and extramural is feasible in a single non-invasive examination. Notwithstanding, barium evaluation still remains the initial and sometimes the only imaging study in several parts of the world. Hence, a thorough acquaintance with the morphology of various duodenal lesions on upper gastrointestinal barium examination is essential in guiding further evaluation. We reviewed our experience with various common and uncommon barium findings in duodenal abnormalities. PMID:25170399

  8. Improved dielectric strength of barium titanate-polyvinylidene fluoride nanocomposite

    NASA Astrophysics Data System (ADS)

    Dou, Xiaoliang; Liu, Xiaolin; Zhang, Yong; Feng, Huan; Chen, Jian-Feng; Du, Song

    2009-09-01

    Barium titanate-polyvinydene fluoride nanocomposites with improved dielectric strength were prepared, in which on the surface of the barium titanate nanoparticle was coated. The results showed that the dielectric breakdown strength of the nanocomposites increase significantly up to 250 kV/mm and then decrease. Microstructural investigations revealed that the coated barium titanate nanoparticles were well-dispersed in polyvinydene fluoride. Fourier transform infrared spectroscopy confirmed that there is a large coverage of cross-linking in both interfaces of the barium titanate-titanate and the titanate-polyvinydene fluoride, which can connect the composites to form an organically integrated body, which result in the increase of the dielectric strength of the nanocomposites.

  9. Liquid-phase-deposited barium titanate thin films on silicon

    NASA Astrophysics Data System (ADS)

    Lee, Ming-Kwei; Liao, Hsin-Chih; Tung, Kuan-Wen; Shih, Chung-Min; Shih, Tsung-Hsiang

    2002-01-01

    Using a mixture of hexafluorotitanic acid, barium nitrate and boric acid, high refractive index (1.54) barium titanate films can be deposited on silicon substrates. The deposited barium titanate films have featureless surfaces. The deposition temperature is near room temperature (80°C). However, there are many fluorine and silicon incorporations in the films. The refractive index of the as-deposited film is 1.54. By current-voltage measurement, the leakage current of the as-deposited film with a thickness of 1000 Å is about 9.48×10-7 A cm-2 at the electrical field intensity of 0.3 MV cm-1. By capacitance-voltage measurement, the effective oxide charge of the liquid-phase-deposited barium titanate film is 3.06×1011 cm-2 and the static dielectric constant is about 22.

  10. Calculated emission rates for barium releases in space

    NASA Technical Reports Server (NTRS)

    Stenbaek-Nielsen, H. C.

    1989-01-01

    The optical emissions from barium releases in space are caused by resonance and fluorescent scattering of sunlight. Emission rates for the dominant ion and neutral lines are calculated assuming the release to be optically thin and the barium to be in radiative equilibrium with the solar radiation. The solar spectrum has deep Fraunhofer absorption lines at the primary barium ion resonances. A velocity component toward or away from the sun will Doppler shift the emission lines relative to the absorption lines and the emission rates will increase many-fold over the rest value. The Doppler brightening is important in shaped charge or satellite releases where the barium is injected at high velocities. Emission rates as a function of velocity are calculated for the 4554, 4934, 5854, 6142 and 6497 A ion emission lines and the dominant neutral line at 5535 A. Results are presented for injection parallel to the ambient magnetic field, B, and for injection at an angle to B.

  11. Upper gastrointestinal barium evaluation of duodenal pathology: A pictorial review

    PubMed Central

    Gupta, Pankaj; Debi, Uma; Sinha, Saroj Kant; Prasad, Kaushal Kishor

    2014-01-01

    Like other parts of the gastrointestinal tract (GIT), duodenum is subject to a variety of lesions both congenital and acquired. However, unlike other parts of the GIT viz. esophagus, rest of the small intestine and large intestine, barium evaluation of duodenal lesions is technically more challenging and hence not frequently reported. With significant advances in computed tomography technology, a thorough evaluation including intraluminal, mural and extramural is feasible in a single non-invasive examination. Notwithstanding, barium evaluation still remains the initial and sometimes the only imaging study in several parts of the world. Hence, a thorough acquaintance with the morphology of various duodenal lesions on upper gastrointestinal barium examination is essential in guiding further evaluation. We reviewed our experience with various common and uncommon barium findings in duodenal abnormalities. PMID:25170399

  12. Study of the photovoltaic effect in thin film barium titanate

    NASA Technical Reports Server (NTRS)

    Grannemann, W. W.; Dharmadhikari, V. S.

    1983-01-01

    The feasibility of making non-volatile digital memory devices of barium titanate, BaTiO3, that are integrated onto a silicon substrate with the required ferroelectric film produced by processing, compatible with silicon technology was examined.

  13. Synthesis, photoluminescence and magnetic properties of barium vanadate nanoflowers

    SciTech Connect

    Xu, Jing [Department of Applied Physics, Chongqing University, 174 Shapingba Street, Chongqing 400044 (China) [Department of Applied Physics, Chongqing University, 174 Shapingba Street, Chongqing 400044 (China); Chongqing University of Science and Technology, Chongqing 401331 (China); Hu, Chenguo, E-mail: hucg@cqu.edu.cn [Department of Applied Physics, Chongqing University, 174 Shapingba Street, Chongqing 400044 (China)] [Department of Applied Physics, Chongqing University, 174 Shapingba Street, Chongqing 400044 (China); Xi, Yi [Department of Applied Physics, Chongqing University, 174 Shapingba Street, Chongqing 400044 (China)] [Department of Applied Physics, Chongqing University, 174 Shapingba Street, Chongqing 400044 (China); Peng, Chen [School of Physical Science and Technology, Southwest University, Chongqing 400715 (China)] [School of Physical Science and Technology, Southwest University, Chongqing 400715 (China); Wan, Buyong; He, Xiaoshan [Department of Applied Physics, Chongqing University, 174 Shapingba Street, Chongqing 400044 (China)] [Department of Applied Physics, Chongqing University, 174 Shapingba Street, Chongqing 400044 (China)

    2011-06-15

    Graphical abstract: The flower-shaped barium vanadate was obtained for the first time. The photoluminescence and magnetic properties of the barium vanadate nanoflowers were investigated at room temperature. Research highlights: {yields} In the paper, the flower-shaped barium vanadate were obtained for the first time. The CHM method used here is new and simple for preparation of barium vanadate. {yields} The photoluminescence and magnetic properties of the barium vanadate nanoflowers were investigated at room temperature. The strong bluish-green emission was observed. {yields} The ferromagnetic behavior of the barium vanadate nanoflowers was found with saturation magnetization of about 83.50 x 10{sup -3} emu/g, coercivity of 18.89 Oe and remnant magnetization of 4.63 x 10{sup -3} emu/g. {yields} The mechanisms of PL and magnetic property of barium vanadate nanoflowers have been discussed. -- Abstract: The flower-shaped barium vanadate has been obtained by the composite hydroxide mediated (CHM) method from V{sub 2}O{sub 5} and BaCl{sub 2} at 200 {sup o}C for 13 h. XRD and XPS spectrum of the as-synthesized sample indicate it is hexagonal Ba{sub 3}V{sub 2}O{sub 8} with small amount of Ba{sub 3}VO{sub 4.8} coexistence. Scan electron microscope and transmission electron microscope display that the flower-shaped crystals are composed of nanosheets with thickness of {approx}20 nm. The UV-visible spectrum shows that the barium vanadate sample has two optical gaps (3.85 eV and 3.12 eV). Photoluminescence spectrum of the barium vanadate flowers exhibits a visible light emission centered at 492 and 525 nm which might be attributed to VO{sub 4} tetrahedron with T{sub d} symmetry in Ba{sub 3}V{sub 2}O{sub 8}. The ferromagnetic behavior of the barium vanadate nanoflowers has been found with saturation magnetization of about 83.50 x 10{sup -3} emu/g, coercivity of 18.89 Oe and remnant magnetization of 4.63 x 10{sup -3} emu/g, which is mainly due to the presence of a non-orthovanadate phase with spin S = 1/2.

  14. A search for technetium (Tc II) in barium stars

    NASA Technical Reports Server (NTRS)

    Little-Marenin, Irene R.; Little, Stephen J.

    1987-01-01

    The authors searched without success for the lines of Tc II at 2647.02, 2610.00 and 2543.24 A in IUE spectra of the barium stars HR 5058, Omicron Vir, and Zeta Cap. The lack of Tc II implies that the observed s-process enhancements were produced more than half a million years ago and supports the suggestion that the spectral peculiarities of barium stars are probably related to the binary nature of the stars.

  15. Kinetics and mechanisms of hydrothermal synthesis of barium titanate

    Microsoft Academic Search

    James O. Eckert; Catherine C. Hung-Houston; Bonnie L. Gersten; Malgorzata M. Lencka; Richard E. Riman

    1996-01-01

    Reaction mechanisms for the hydrothermal synthesis of barium titanate are evaluated. Feedstocks of barium hydroxide octahydrate and anatase titania are reacted for varying durations (1--72 h) to provide intermediate-stage samples for characterization by transmission electron microscopy\\/energy-dispersive spectroscopy (TEM\\/EDS), X-ray diffractometry (XRD), and inductively coupled plasma spectroscopy (ICP) and XRD methods permits the analysis of data with the Johnson-Mehl-Avrami equation. This

  16. On the nature of defects in barium ferrite platelets

    Microsoft Academic Search

    D. Ratnam; W. Buessem

    1970-01-01

    Barium ferrite (Ba.0.6Fe2O3) platelets of approximatelyfrac{1}{2}mum diameter and with intrinsic coercive force of about 5000 Oe were crystallized from a glass phase. To study the nature of the defects and their influence on the magnetic properties, the crystailized glass was plastically deformed by applying a pressure of 30 kbar in an opposed anvil press. Barium ferrite platelets were extracted from

  17. 'Skidding' of the CRRES G-9 barium release

    NASA Technical Reports Server (NTRS)

    Huba, J. D.; Mitchell, H. G.; Fedder, J. A.; Bernhardt, P. A.

    1992-01-01

    A simulation study and experimental data of the CRRES G-9 ionospheric barium release are presented. The simulation study is based on a 2D electrostatic code that incorporates time-dependent coupling to the background plasma. It is shown that the densest portion of the barium ion cloud 'skids' about 15 km within the first three seconds following the release, consistent with the optical data analyses.

  18. Thermal Decomposition of Barium Dioxodiaquaperoxyoxalato Uranate(VI) Hydrate

    Microsoft Academic Search

    B. B. V. Sailaja; T. Kebede; M. S. Prasada Rao

    2002-01-01

    Barium dioxodiaquaperoxyoxalatouranate was obtained by reaction of uranyl nitrate with oxalic acid and then hydrogen peroxide\\u000a in the presence of barium ion. The complex was subjected to chemical analysis. The thermal decomposition behaviour of the\\u000a complex was studied using TG, DTG and DTA techniques. The solid complex salt and the intermediate product of its thermal decomposition\\u000a were characterized using IR

  19. Neutron source, neutron density and the origin of barium stars

    Microsoft Academic Search

    Robert A. Malaney; David L. Lambert

    1988-01-01

    The authors present new high resolution spectra of the MgH profiles in nine barium stars, and determine, by spectral synthesis techniques, the magnesium isotopic ratios in each star. When compared with recent AGB nucleosynthesis calculations, they can emphatically rule out the operation of the 22Ne(alpha, n)25Mg reaction as the neutron source responsible for the s-process enhancements observed in these barium

  20. Hospital outpatient pharmacies and durable medical equipment.

    PubMed

    Smith, J E; Popielarski, E

    1986-04-01

    Factors to consider when planning and implementing a durable medical equipment (DME) business are discussed. Although hospital pharmacists have begun to provide home health-care and other outpatient-care services, few hospital pharmacies have implemented DME businesses in conjunction with those services. By providing DME to patients, hospital pharmacies can realize substantial net income while improving continuity of patient care. Before establishing a DME business, pharmacists should consider where the showroom will be located, who will deliver and set up the equipment and train patients to use the equipment, and how the business will be promoted within the hospital; they must also become familiar with methods of reimbursement for DME. It is also important for pharmacists to decide whether the hospital should enter into a joint-venture relationship with an established community-based DME dealer or act as sole owner of the DME business. As hospitals search for ways to generate income from sources other than inpatient care and to encourage patients to use hospital services, hospital pharmacists should not overlook the possibility of establishing a DME business in conjunction with other outpatient-care programs. PMID:3706340

  1. Outpatient provider concentration and commercial colonoscopy prices.

    PubMed

    Pozen, Alexis

    2015-01-01

    The objective was to evaluate the magnitude of various contributors to outpatient commercial colonoscopy prices, including market- and provider-level factors, especially market share. We used adjudicated fee-for-service facility claims from a large commercial insurer for colonoscopies occurring in hospital outpatient department or ambulatory surgery center from October 2005 to December 2012. Claims were matched to provider- and market-level data. Linear fixed effects regressions of negotiated colonoscopy price were run on provider, system, and market characteristics. Markets were defined as counties. There were 178?433 claims from 169 providers (104 systems). The mean system market share was 76% (SD = 0.34) and the mean real (deflated) price was US$1363 (SD = 374), ranging from US$169 to US$2748. For every percentage point increase in a system or individual facility's bed share, relative price increased by 2 to 4 percentage points; this result was stable across a number of specifications. Market population and price were also consistently positively related, though this relation was small in magnitude. No other factor explained price as strongly as market share. Price variation for colonoscopy was driven primarily by market share, of particular concern as the number of mergers increases in wake of the recession and the Affordable Care Act. Whether variation is justified by better quality care requires further research to determine whether quality is subsumed in prices. PMID:25870183

  2. [Statistical study of outpatient urologic care].

    PubMed

    Belvis Esclapés, V M; Jiménez Navarro, J; Ruiz Ferrando, J; Gasso Matoses, M; Mira Llinares, A

    1991-01-01

    Attendance generated in an urology outpatients office, reaching up to 6564 visits, was studied for a complete year. Considering only the initial visits handled during that period (1968), we evaluated the following parameters: age, sex, mode of remission, data presented, type of consultation, most common type of urological pathology. No particular period of life has come out as showing greater incidence of urological pathology. Males represented twice as many visits as women. 84.29% patients had been correctly referred to the office. Sixty percent of visits happened without appropriate clinical data to support the case. Emergencies represented 13.31%, but 90% of those actually lacked such condition. Renal-ureteral lithiasis (25.57%) was the most frequently present pathology in our office, followed by benign hypertrophy of the prostate (16.07%). Urinary lower tract infections (15.59%) and inflammatory and/or congenital prepuce pathologies (14.09%) were the second most frequent ones. In this paper, we emphasize the increasing prevalence of male-related sterility visits in the outpatients environment, as well as nephrological. PMID:1772045

  3. Impact of music on pediatric oncology outpatients.

    PubMed

    Kemper, Kathi J; Hamilton, Craig A; McLean, Thomas W; Lovato, James

    2008-07-01

    Music is widely used to enhance well-being. We wished to assess music's effect on pediatric oncology outpatients. Patients who had leukemia and were in maintenance or consolidation outpatient treatment served as their own control at two visits. At visit 1, children rested for 20 min; at visit 2, for 20 min they listened to music designed to increase vitality and improve heart rate variability (HRV). At both visits, parents completed before and after treatment visual analog scales (VAS) of their child's relaxation, well-being, vitality, anxiety, stress, and depression; patients' heart rates were monitored during treatments to calculate HRV. The 47 patients with complete VAS data and 34 patients with usable HRV data were similar. At baseline, VAS scores for negative states were low (average <2.5 of 10) and positive states were high (average 7> of 10). Relaxation improved more with music than rest (p < 0.01). The HRV parasympathetic parameter was significantly lower with music than rest. No other differences were significant. Further studies are needed to better delineate the relationship between subjective and objective measures of well-being among patients who are not in severe distress. PMID:18391850

  4. Fatal barium chloride poisoning: four cases report and literature review.

    PubMed

    Ananda, Sunnassee; Shaohua, Zhu; Liang, Liu

    2013-06-01

    Barium is an alkaline earth metal which has a variety of uses including in the manufacturing industry and in medicine. However, adverse health effects and fatalities occur due to absorption of soluble barium compounds, notably the chloride, nitrate, and hydroxide, which are toxic to humans. Although rare, accidental and suicidal modes of poisoning are sporadically reported in the literature.We describe 4 cases of poisoning due to barium chloride in China. In witnessed cases, severe gastrointestinal symptoms, hypokalemia leading to muscle weakness, cardiac arrhythmias, and respiratory failure were noted. Autopsy showed some nonspecific but common findings, such as subendocardial hemorrhage in the ventricles, visceral petechiae, and fatty changes in the liver. Interestingly, microscopic examination showed degenerative changes and amorphous, flocculent foamy materials in the renal tubules. Toxicology was relevant for barium in blood and tissues. Three of the cases were accidental and 1 homicidal in nature. A round-up of relevant literature on fatal barium compounds poisoning is also provided. Forensic pathologists should be aware of the clinical presentations of barium compound poisoning and especially look for any evidence of hypokalemia. Still, postmortem toxicological and histological studies are essential for an accurate identification of the cause of death. PMID:23629399

  5. A Study of Personality Characteristics of Outpatient Alcoholics.

    ERIC Educational Resources Information Center

    Calaycay, P. R.; Altman, H. A.

    1985-01-01

    Tested 60 alcoholic outpatients matched with 60 normals on the Eysenck Personality Inventory and the IPAT-Anxiety Scale Questionniare. The alcoholic outpatients were beyond borderline in anxiety, lack of integrated development of self-sentiment, ego weakness, paranoid insecurity, guilt proneness and frustration tension. Neuroticism and anxiety…

  6. Reinforcing outpatient medical student learning using brief computer tutorials: the

    E-print Network

    -6920/12/70 #12;RESEARCH ARTICLE Open Access Reinforcing outpatient medical student learning using brief computerReinforcing outpatient medical student learning using brief computer tutorials: the Patient-Teacher-Tutorial sequence Pusic et al. Pusic et al. BMC Medical Education 2012, 12:70 http://www.biomedcentral.com/1472

  7. Development of the Physical Therapy Outpatient Satisfaction Survey (PTOPS)

    Microsoft Academic Search

    Susan E Roush; Robert J Sonstroem

    1999-01-01

    Background and Purpose. The purposes of this 3-phase study were (1) to identify the underlying components of outpatient satisfaction in physical therapy and (2) to develop a test that would yield reliable and valid measurements of these components. Subjects. Three samples, consisting of 177, 257, and 173 outpatients from 21 facilities, were used in phases 1, 2, and 3, respectively.

  8. Beware of Strangers Bearing Gifts: Foodborne Illness in Outpatient Clinic

    Microsoft Academic Search

    K. McMullen; J. Reneau; K. Winters; V. Fraser; D. Warren

    2004-01-01

    BACKGROUND: Catered meals are common in hospitals, outpatient clinics, and physician offices. During a routine site visit of an outpatient clinic, Infection Control (IC) identified an outbreak of gastrointestinal (GI) illness among clinic employees. Personnel attributed their illness to a lunch catered from a local restaurant the previous day.METHODS: Cases were defined as personnel who ate catered food and developed

  9. Creative Art Therapy Groups: A Treatment Modality for Psychiatric Outpatients

    ERIC Educational Resources Information Center

    Drapeau, Marie-Celine; Kronish, Neomi

    2007-01-01

    This brief report examines the benefits of a creative art therapy group program for outpatients suffering from psychiatric disorders. Included is a review of relevant treatment outcomes literature on the effectiveness of group art therapy. The authors describe the Creative Art Therapy Group Program offered to adult psychiatric outpatients that is…

  10. Relationship between Alexithymia, Dissociation and Personality in Psychiatric Outpatients

    Microsoft Academic Search

    Thomas N. Wise; Lee S. Mann; Michael J. Sheridan

    2000-01-01

    Background: The relationship between alexithymia and dissociation is not known. Both mechanisms ward off overwhelming affective states; hence, this report examines the relationship between dissociation, alexithymia, depressed mood and the five-factor model of personality in a sample of psychiatric outpatients. Methods: One hundred and sixteen outpatients were evaluated using the Toronto Alexithymia Scale (TAS), the Dissociative Experiences Scale (DES), NEO

  11. The pain behavior scale: Modification and validation for outpatient use

    Microsoft Academic Search

    Michael Feuerstein; Mark Greenwald; Michael P. Gamache; Anthony S. Papciak; Edwin W. Cook

    1985-01-01

    The present study investigated the validity of an inpatient pain behavior rating scale modified for outpatient use. A series of 43 consecutive outpatients referred for evaluation of chronic pain was examined using the Pain Behavior Scale (PBS) and other psychometric instruments. Analyses revealed significantly higher Pain Behavior Scale scores for low back and multiple pain-site groups. The results also indicated

  12. Use of Emergency Outpatient Services in a Small Rural Hospital

    PubMed Central

    Thompson, James M.; Ratcliff, Melva J.

    1992-01-01

    Use of emergency outpatient services is described for a 34-bed rural hospital in Alberta. One in 10 outpatients was classified as having serious and extreme emergencies. Less than 3% were transferred to a higher level of care; 10% were admitted to the local hospital. Recommendations are made for staffing, training, inventory, and funding of small rural hospital emergency departments. PMID:21221292

  13. Evidence-Based Practices in Outpatient Treatment for Eating Disorders

    ERIC Educational Resources Information Center

    Schaffner, Angela D.; Buchanan, Linda Paulk

    2010-01-01

    This study examined the current issues relevant to implementing evidence-based practices in the context of outpatient treatment for eating disorders. The study also examined the effectiveness of an outpatient treatment program for eating disorders among a group of 196 patients presenting with anorexia nervosa, bulimia nervosa, or eating disorder…

  14. 42 CFR 414.63 - Payment for outpatient diabetes self-management training.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Payment for outpatient diabetes self-management training. 414... § 414.63 Payment for outpatient diabetes self-management training. (a...this section, payment for outpatient diabetes self-management training is made...

  15. 42 CFR 414.63 - Payment for outpatient diabetes self-management training.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Payment for outpatient diabetes self-management training. 414... § 414.63 Payment for outpatient diabetes self-management training. (a...this section, payment for outpatient diabetes self-management training is made...

  16. 42 CFR 414.63 - Payment for outpatient diabetes self-management training.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Payment for outpatient diabetes self-management training. 414... § 414.63 Payment for outpatient diabetes self-management training. (a...this section, payment for outpatient diabetes self-management training is made...

  17. 42 CFR 447.321 - Outpatient hospital and clinic services: Application of upper payment limits.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 2010-10-01 false Outpatient hospital and clinic services: Application of upper...Noninstitutional Services Outpatient Hospital and Clinic Services § 447.321 Outpatient hospital and clinic services: Application of...

  18. 75 FR 7218 - Payment for Inpatient and Outpatient Health Care Professional Services at Non-Departmental...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-18

    ...Payment for Inpatient and Outpatient Health Care Professional Services at Non-Departmental...Charges Associated With Non-VA Outpatient Care AGENCY: Department of Veterans Affairs...payments for inpatient and outpatient health care professional services and other...

  19. 75 FR 78901 - Payment for Inpatient and Outpatient Health Care Professional Services at Non-Departmental...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-17

    ...Payment for Inpatient and Outpatient Health Care Professional Services at Non-Departmental...Charges Associated With Non-VA Outpatient Care AGENCY: Department of Veterans Affairs...payments for inpatient and outpatient health care professional services and other...

  20. 42 CFR 440.20 - Outpatient hospital services and rural health clinic services.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Outpatient hospital services and rural health clinic services. 440.20 Section...Outpatient hospital services and rural health clinic services. (a) Outpatient...hospitals in the State. (b) Rural health clinic services. If nurse...

  1. 42 CFR 440.20 - Outpatient hospital services and rural health clinic services.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Outpatient hospital services and rural health clinic services. 440.20 Section...Outpatient hospital services and rural health clinic services. (a) Outpatient...hospitals in the State. (b) Rural health clinic services. If nurse...

  2. 42 CFR 440.20 - Outpatient hospital services and rural health clinic services.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Outpatient hospital services and rural health clinic services. 440.20 Section...Outpatient hospital services and rural health clinic services. (a) Outpatient...hospitals in the State. (b) Rural health clinic services. If nurse...

  3. 42 CFR 419.20 - Hospitals subject to the hospital outpatient prospective payment system.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Hospitals subject to the hospital outpatient prospective payment system. 419.20 Section...SERVICES (CONTINUED) MEDICARE PROGRAM PROSPECTIVE PAYMENT SYSTEM FOR HOSPITAL OUTPATIENT...Excluded From the Hospital Outpatient Prospective Payment System § 419.20...

  4. Medicare's outpatient code editor is key to APC payments.

    PubMed

    Leary, R; Farley, D E

    2001-07-01

    Since implementation of the outpatient prospective payment system (PPS) in August 2000, HCFA has used an inadequate communication process to inform providers about billing and coding requirements. Numerous program memorandums have been issued to communicate changes to the outpatient PPS and even to correct information that was provided in previous program memorandums. Providers need to monitor changes in outpatient PPS policy by reading the program memorandums posted on HCFA's Web site (www.hcfa.org) and through reviewing other informal communications posted to the HCFA Web site. In addition, the outpatient code editor (OCE) contains information about quarterly APC classification updates. In fact, the OCE is the only source of this information in many cases. Because the outpatient PPS differs from any other PPS implemented by HCFA, providers should ensure that they have all the current information they need to comply with the system's billing and coding requirements. PMID:11467230

  5. Synthesis of single-crystal barium titanium isopropoxide complex to form barium titanate

    SciTech Connect

    Suyama, Yoko (Japan Fine Ceramic Center, Nagoya (Japan)); Nagasawa, Mitsuru (Toyota Technological Inst., Nagoya (Japan))

    1994-02-01

    Single-crystal barium titanate double alkoxide complex with a composition presumed to be BaTi(OCH(CH[sub 3])[sub 2])[sub 6][center dot]xC[sub 6]H[sub 6] was successfully synthesized in this work. The crystal was converted to BaTiO[sub 3] at 100 C. The preparation of the oxides via single crystals of metal alkoxides has some advantage over the well-known sol-gel method in that it results in oxides with well-defined and homogeneous compositions at the atomic level and in fine particle sizes, smaller than 50 nm.

  6. [Outpatient tinnitus management and hyperacusis training].

    PubMed

    Pilgramm, M; Lebisch, H; Pehle, W

    2012-06-01

    The degree of suffering caused by chronic ringing in the ears leads to different forms of therapy according to the differential diagnosis. In addition to possibly providing a hearing aid, hyperacusis as well as tinnitus management training plays a central role. Training in the management of tinnitus should be carried out in an interdisciplinary manner. Patient management should always be in the hands of an ENT physician who is supported diagnostically and therapeutically by an audiologist (hearing aid acoustician) and a psychologist (psychotherapist). The individual disciplines aid one another. As a rule, all procedures can be offered on an outpatient basis. For learning the techniques, participation in several days of course activities is necessary for all therapists. Fundamentally, all measures must be subject to quality management (certification, follow-up investigations). PMID:22552316

  7. Clozapine Prescribing in a Canadian Outpatient Population

    PubMed Central

    Alessi-Severini, Silvia; Le Dorze, Josee-Anne; Nguyen, David; Honcharik, Patricia; Eleff, Michael

    2013-01-01

    Objective Description of demographics of an outpatient population of clozapine users. Methods Retrospective chart review study of an urban population diagnosed with schizophrenia. Assessment of therapeutic histories in relation to clinical practice guidelines. Results Seventy-seven of the 467 patients were on clozapine therapy. Average patients’ age was 39.4 ± 11.8 years) and 68% were males. The majority of patients (68%) had tried 3 or more antipsychotics before switching to clozapine, 21% had tried two and 11% had tried one. Median length of therapy prior to clozapine initiation was 8.9 years in males and 7.7 years in females. Conclusion Until 2010, the use of clozapine was often delayed and more than 2 antipsychotic medications were tried for relatively long periods of time before patients were switched to this effective agent. PMID:24358290

  8. Theoretical isotope shifts in neutral barium

    NASA Astrophysics Data System (ADS)

    Nazé, C.; Li, J. G.; Godefroid, M.

    2015-03-01

    The present work deals with a set of problems in isotope shifts of neutral barium spectral lines. Some well-known transitions (6 s2 1S0-6 s 6 p 1,3P1o and 6 s2 1S0-6 p2 3P0) are investigated. Values of the changes in the nuclear mean-square charge radius are deduced from the available experimental isotope shifts using our ab initio electronic factors. The three sets {? A ,A'} obtained from these lines are consistent with each other. The combination of the available nuclear mean-square radii with our electronic factors for the 6 s 5 d 3D1 ,2-6 s 6 p 1P1o transitions produces isotope shift values in conflict with the laser spectroscopy measurements of U. Dammalapati et al. [Eur. Phys. J. D 53, 1 (2009), 10.1140/epjd/e2009-00076-x].

  9. High H? ionic conductivity in barium hydride

    NASA Astrophysics Data System (ADS)

    Verbraeken, Maarten C.; Cheung, Chaksum; Suard, Emmanuelle; Irvine, John T. S.

    2015-01-01

    With hydrogen being seen as a key renewable energy vector, the search for materials exhibiting fast hydrogen transport becomes ever more important. Not only do hydrogen storage materials require high mobility of hydrogen in the solid state, but the efficiency of electrochemical devices is also largely determined by fast ionic transport. Although the heavy alkaline-earth hydrides are of limited interest for their hydrogen storage potential, owing to low gravimetric densities, their ionic nature may prove useful in new electrochemical applications, especially as an ionically conducting electrolyte material. Here we show that barium hydride shows fast pure ionic transport of hydride ions (H?) in the high-temperature, high-symmetry phase. Although some conductivity studies have been reported on related materials previously, the nature of the charge carriers has not been determined. BaH2 gives rise to hydride ion conductivity of 0.2 S cm?1 at 630 °C. This is an order of magnitude larger than that of state-of-the-art proton-conducting perovskites or oxide ion conductors at this temperature. These results suggest that the alkaline-earth hydrides form an important new family of materials, with potential use in a number of applications, such as separation membranes, electrochemical reactors and so on.

  10. High H? ionic conductivity in barium hydride.

    PubMed

    Verbraeken, Maarten C; Cheung, Chaksum; Suard, Emmanuelle; Irvine, John T S

    2015-01-01

    With hydrogen being seen as a key renewable energy vector, the search for materials exhibiting fast hydrogen transport becomes ever more important. Not only do hydrogen storage materials require high mobility of hydrogen in the solid state, but the efficiency of electrochemical devices is also largely determined by fast ionic transport. Although the heavy alkaline-earth hydrides are of limited interest for their hydrogen storage potential, owing to low gravimetric densities, their ionic nature may prove useful in new electrochemical applications, especially as an ionically conducting electrolyte material. Here we show that barium hydride shows fast pure ionic transport of hydride ions (H(-)) in the high-temperature, high-symmetry phase. Although some conductivity studies have been reported on related materials previously, the nature of the charge carriers has not been determined. BaH2 gives rise to hydride ion conductivity of 0.2 S cm(-1) at 630 °C. This is an order of magnitude larger than that of state-of-the-art proton-conducting perovskites or oxide ion conductors at this temperature. These results suggest that the alkaline-earth hydrides form an important new family of materials, with potential use in a number of applications, such as separation membranes, electrochemical reactors and so on. PMID:25485988

  11. Preparation and properties of barium ferrite using hot-rolled mill scale

    SciTech Connect

    Chien, Y.T.; Pan, H.C.; Ko, Y.C. (China Steel Corp., Kaohsiung, Taiwan (TW))

    1989-08-01

    Commercial-quality barium ferrite was made on a laboratory scale by the solid-state reaction of raw hot-rolled mill scale and barium carbonate. The processing parameters are reported. The mechanism of ferrite formation is proposed.

  12. Millimeter wave phase shifter based on ferromagnetic resonance in a hexagonal barium ferrite thin film

    E-print Network

    Millimeter wave phase shifter based on ferromagnetic resonance in a hexagonal barium ferrite thin of an M-type barium ferrite BaM thin film prepared by pulsed laser deposition and a coplanar waveguide

  13. Pyroelectric properties of barium strontium titanate films: Effect of thermal M. W. Cole,2

    E-print Network

    Alpay, S. Pamir

    Pyroelectric properties of barium strontium titanate films: Effect of thermal stresses J. Zhang,1 M pyroelectric properties of 001 -textured polycrystalline barium strontium titanate BaxSr1-xTiO3, BST films

  14. Acceleration of barium ions near 8000 km above an aurora

    NASA Technical Reports Server (NTRS)

    Stenbaek-Nielsen, H. C.; Hallinan, T. J.; Wescott, E. M.; Foeppl, H.

    1984-01-01

    A barium shaped charge, named Limerick, was released from a rocket launched from Poker Flat Research Range, Alaska, on March 30, 1982, at 1033 UT. The release took place in a small auroral breakup. The jet of ionized barium reached an altitude of 8100 km 14.5 min after release, indicating that there were no parallel electric fields below this altitude. At 8100 km the jet appeared to stop. Analysis shows that the barium at this altitude was effectively removed from the tip. It is concluded that the barium was actually accelerated upward, resulting in a large decrease in the line-of-sight density and hence the optical intensity. The parallel electric potential in the acceleration region must have been greater than 1 kV over an altitude interval of less than 200 km. The acceleration region, although presumably auroral in origin, did not seem to be related to individual auroral structures, but appeared to be a large-scale horizontal structure. The perpendicular electric field below, as deduced from the drift of the barium, was temporally and spatially very uniform and showed no variation related to individual auroral structures passing through.

  15. Creating unstable velocity-space distributions with barium injections

    SciTech Connect

    Pongratz, M.B.

    1983-01-01

    Large Debye lengths relative to detector dimensions and the absence of confining walls makes space an attractive laboratory for studying fundamental theories of plasma instabilities. However, natural space plasmas are rarely found displaced from equilibrium enough to permit isolation and diagnosis of the controlling parameters and driving conditions. Furthermore, any plasma or field response to the departure from equilibrium can be masked by noise in the natural system. Active experiments provide a technique for addressing the chicken or egg dilemma. Early thermite barium releases were generally conducted at low altitudes from sounding rockets to trace electric fields passively or to study configuration-space instabilities. One can also study velocity-space instabilities with barium releases. Neutral barium vapor releases wherein a typical speed greatly exceeds the thermal speed can be used to produce barium ion velocity-space distributions that should be subject to a number of microinstabilities. We examine the ion velocity-space distributions resulting from barium injections from orbiting spacecraft and shaped-charges.

  16. Medicare Payments for Outpatient Urologic Surgery by Location of Care

    PubMed Central

    Hollingsworth, John M.; Saigal, Chris S.; Lai, Julie C.; Dunn, Rodney L.; Strope, Seth A.; Hollenbeck, Brent K.

    2014-01-01

    Introduction and objective The cost implications associated with offloading outpatient surgery from hospitals to ASCs and the physician office remain poorly defined. Motivated by this, we determined whether payments for outpatient surgery vary by location of care. Methods Using national Medicare claims (1998 to 2006), we identified elderly patients, who underwent one of 22 common outpatient urologic procedures. For each procedure, we measured all relevant payments (in USD) made during 30-day claims window that encompassed the procedure date. We then categorized payment types (hospital, physician, and outpatient facility). Finally, we used multivariable regression to compare price-standardized payments across hospitals, ASCs, and the physician office. Results Average total payments for outpatient surgery episodes varied widely, from USD 200 for urethral dilation in the office to USD 5,688 for hospital-based shockwave lithotripsy. For all but two procedure groups, ASCs and the office were associated with lower overall episode payments than hospitals. For instance, average total payments for urodynamic procedures performed at ASCs were less than a third of those done in hospitals (P<0.001). Compared to hospitals, office-based prostate biopsies were nearly 75% less costly (P<0.001). Outpatient facility payments were the biggest driver of these differences. Conclusions These data support policies that encourage the provision of outpatient surgery in less resource-intensive settings. PMID:23102712

  17. Fabrication of Nanoparticles of Barium Carbonate\\/Oxalate Using Reverse Micelle Technique

    Microsoft Academic Search

    Poonam Sharma; H. S. Virk

    2009-01-01

    Nanoparticles of barium carbonate\\/oxalate have been synthesized in situ from barium nitrate and ammonium carbonate\\/oxalate by reverse micelle method. These particles were characterized using transmission electron microscope (TEM), fourier transform infrared (FTIR) and x-ray diffraction (XRD). The results indicate that rod-like barium carbonate (BaCO3) and spherical barium oxalate (BaC2O4) nanoparticles can be fabricated with high crystallinity.

  18. Magnetic properties of La–Co substituted barium ferrite thin films with large magnetic anisotropy

    Microsoft Academic Search

    K. Kakizaki; H. Taguchi; N. Hiratsuka

    2004-01-01

    Barium ferrite thin films with lanthanum ions and cobalt ions substituted for barium ions and iron ions have been prepared by conventional diode sputtering method. The hexagonal magnetoplumbite structure was formed by an annealing at 800°C or above. La–Co-substituted barium ferrite thin films had large magnetic anisotropy compared with non-substituted barium ferrite thin films. Moreover, an attempt was also made

  19. Emission spectrographic determination of barium in sea water using a cation exchange concentration procedure

    USGS Publications Warehouse

    Szabo, B. J.; Joensuu, O.

    1967-01-01

    A concentration technique employing Dowex 50W cation exchange resin is described for the determination of barium in sea water. The separated barium is precipitated as fluoride together with calcium and strontium and measured by emission spectrographic analysis. The vertical distribution of barium in sea water has been measured in the Caribbean Sea and the Atlantic Ocean. The barium content varied between 7 and 23 ??g. per liter; in two profiles, the lowest concentrations were at a depth of about 1000 meters.

  20. Vulnerability of Rural Hospitals to Medicare Outpatient Payment Reform

    PubMed Central

    Mohr, Penny E.; Franco, Sheila J.; Blanchfield, Bonnie B.; Cheng, C. Michael; Evans, William N.

    1999-01-01

    Because the Balanced Budget Act (BBA) of 1997 requires implementation of a Medicare prospective payment system (PPS) for hospital outpatient services, the authors evaluated the potential impact of outpatient PPS on rural hospitals. Areas examined include: (1) How dependent are rural hospitals on outpatient revenue? (2) Are they more likely than urban hospitals to be vulnerable to payment reform? (3) What types of rural hospitals will be most vulnerable to reform? Using Medicare cost report data, the authors found that small size and government ownership are more common among rural than urban hospitals and are the most important determinants of vulnerability to payment reform. PMID:11481724

  1. [Implementation of psychiatric involuntary outpatient treatment in canton de Vaud].

    PubMed

    Morandi, Stéphane; Bonsack, Charles; Monnat, Martine; Boubaker, Karim

    2014-09-17

    Civil involuntary outpatient treatment authorises the provision to unwilling psychiatric patients of continuing ambulatory treatment. There is an absence of convincing international evidence for their effectiveness. From 2013 and after the Swiss Civil Code was amended, all cantonal governments enacted legislation for this new form of coercion. In canton Vaud, a working group including jurists, psychiatrists and civil judges has been set up by the Department of health in order to propose involuntary outpatient treatments respectful of patients' rights and proportional to patients' and network's needs. This article describes how involuntary outpatient treatments are locally implemented and assessed in the context of a pilot project limited to one year. PMID:25322497

  2. Outpatient bilateral supracostal tubeless percutaneous nephrolithotomy for staghorn calculi

    PubMed Central

    Kokorovic, Andrea; Wilson, James W.L.; Beiko, Darren

    2014-01-01

    Percutaneous nephrolithotomy (PCNL) is the surgical procedure of choice to treat staghorn calculi. Most centres perform PCNL as the traditional inpatient procedure. However, outpatient PCNL has been successfully attempted and represents a feasible method of reducing hospital costs. We report the case of a 35-year-old female who underwent outpatient simultaneous PCNL for bilateral renal staghorn calculi. The patient was discharged in stable condition less than 3 hours following the procedure with minimal discomfort. To the best of our knowledge, this case report is the first to describe a successfully completed outpatient bilateral supracostal tubeless PCNL for staghorn calculi. PMID:24839499

  3. 40 CFR 721.10010 - Barium manganese oxide (BaMnO3).

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...2011-07-01 2011-07-01 false Barium manganese oxide (BaMnO3). 721.10010 Section...Chemical Substances § 721.10010 Barium manganese oxide (BaMnO3). (a) Chemical...chemical substance identified as barium manganese oxide (BaMnO3 ) (PMN...

  4. 40 CFR 721.10010 - Barium manganese oxide (BaMnO3).

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...2014-07-01 2014-07-01 false Barium manganese oxide (BaMnO3). 721.10010 Section...Chemical Substances § 721.10010 Barium manganese oxide (BaMnO3 ). (a) Chemical...chemical substance identified as barium manganese oxide (BaMnO3 ) (PMN...

  5. 40 CFR 721.10010 - Barium manganese oxide (BaMnO3).

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...2012-07-01 2012-07-01 false Barium manganese oxide (BaMnO3). 721.10010 Section...Chemical Substances § 721.10010 Barium manganese oxide (BaMnO3 ). (a) Chemical...chemical substance identified as barium manganese oxide (BaMnO3 ) (PMN...

  6. 40 CFR 721.10010 - Barium manganese oxide (BaMnO3).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...2010-07-01 2010-07-01 false Barium manganese oxide (BaMnO3). 721.10010 Section...Chemical Substances § 721.10010 Barium manganese oxide (BaMnO3). (a) Chemical...chemical substance identified as barium manganese oxide (BaMnO3 ) (PMN...

  7. 40 CFR 721.10010 - Barium manganese oxide (BaMnO3).

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...2013-07-01 2013-07-01 false Barium manganese oxide (BaMnO3). 721.10010 Section...Chemical Substances § 721.10010 Barium manganese oxide (BaMnO3 ). (a) Chemical...chemical substance identified as barium manganese oxide (BaMnO3 ) (PMN...

  8. 49 CFR 173.182 - Barium azide-50 percent or more water wet.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Barium azide-50 percent or more water wet. 173.182 Section...Barium azide—50 percent or more water wet. Barium azide...to take place when and where freezing weather is possible, a suitable...solution must be used to prevent freezing. Each packaging must...

  9. L = 1.24 Conjugate Magnetic Field Line Tracing Experiments With Barium Shaped Charges

    Microsoft Academic Search

    E. M. Wescott; E. P. Rieger; H. C. Stenbaek-Nielsen; T. N. Davis; H. M. Peek; P. J. Bottoms

    1974-01-01

    Barium ions are well suited for tracing out magnetic field lines, because they resonantly scatter sunlight in several visible wavelengths and because ions are constrained to spiral about magnetic field lines while traveling freely parallel to the field. By use of high explosive shaped charges with hollow conical liners of barium metal, detonated above 500-km altitude, jets of barium plasma

  10. Synthesis of Barium Ferrite Ultrafine Particles by Coprecipitation in the Presence of Polyacrylic Acid

    Microsoft Academic Search

    Dong-Hwang Chen; Yuh-Yuh Chen

    2001-01-01

    The barium ferrite ultrafine particles were synthesized by coprecipitation in an aqueous solution with polyacrylic acid (PAA) as a protective agent. Thermal analysis by TGA\\/DTA showed that the precursor could yield barium ferrite after calcination above 700°C for 2 h. By analyses of the XRD and electron diffraction pattern, the formation of pure barium ferrite was confirmed and the appropriate

  11. Barium ferrite particulate tapes for high-band 8 mm VCR

    Microsoft Academic Search

    H. Yokoyama; T. Ito; M. Isshiki; K. Kurata; T. Fukaya

    1992-01-01

    Barium ferrite particulate media have been applied to recording tapes for a high-band 8 mm VCR, with full compatibility with metal particulate tapes, although they have remarkably different magnetic and recording characteristics. The compatibility of barium ferrite tapes to metal particulate tapes has been attained by adopting barium ferrite particles with an average diameter of 50 nm and a diameter

  12. Barium ferrite thin film media with perpendicular c-axis orientation and small grain size

    E-print Network

    Laughlin, David E.

    on the magnetic properties of stoichiometric barium ferrite thin films have been previously reported.2 In our workBarium ferrite thin film media with perpendicular c-axis orientation and small grain size Zailong, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 Barium ferrite thin films with perpendicular c

  13. TEE BARIUM CONTENT IN THE CALCAREOUS SKELETAL MATERTALS OF SOME RECENT AND

    E-print Network

    Luther, Douglas S.

    TEE BARIUM CONTENT IN THE CALCAREOUS SKELETAL MATERTALS OF SOME RECENT AND FOSSIL CORALS known mlxtures of the 'vrlo m inerals. Ion-exchange methods hrere utllized to separate barium from on ln the Ilvlng eorals varled from 5- 2 + IOS ppn, to L2.5 + 6.1+% ppr. ThtB varJ-atlon ln barium

  14. M-type barium hexaferrite synthesis and characterization for phase shifter applications

    E-print Network

    McHenry, Michael E.

    M-type barium hexaferrite synthesis and characterization for phase shifter applications A. T. Wise; published online 13 April 2011) M-type barium hexaferrite films have been grown by liquid phase epitaxy half a percent. VC 2011 American Institute of Physics. [doi:10.1063/1.3559471] Since M-type barium

  15. 49 CFR 173.182 - Barium azide-50 percent or more water wet.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 2013-10-01 2013-10-01 false Barium azide-50 percent or more water wet. 173...Other Than Class 1 and Class 7 § 173.182 Barium azide—50 percent or more water wet. Barium azide—50 percent or more water wet,...

  16. PHYSICAL REVIEW A 88, 023403 (2013) Production of translationally cold barium monohalide ions

    E-print Network

    Chapman, Michael

    2013-01-01

    PHYSICAL REVIEW A 88, 023403 (2013) Production of translationally cold barium monohalide ions M. V) We have produced sympathetically cooled barium monohalide ions BaX+ (X = F, Cl, Br) by reacting with these predictions. Producing BaX+ ions in this way is simple and allows for the study of different barium monohalide

  17. Spectroscopy of Eu3+ ions in congruent strontium barium niobate crystals

    E-print Network

    Osnabrück, Universität

    Spectroscopy of Eu3+ ions in congruent strontium barium niobate crystals Ä. Andresen, A.-N. Bahar properties of single crystals of strontium barium niobate, grown from the congruently melting composition, electro-optic, pho- torefractive, and dielectric properties, the solid solution strontium barium niobate

  18. 49 CFR 173.182 - Barium azide-50 percent or more water wet.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 2014-10-01 2014-10-01 false Barium azide-50 percent or more water wet. 173...Other Than Class 1 and Class 7 § 173.182 Barium azide—50 percent or more water wet. Barium azide—50 percent or more water wet,...

  19. A comparison between excess barium and barite as indicators of carbon export

    E-print Network

    Paytan, Adina

    A comparison between excess barium and barite as indicators of carbon export Meagan Eagle and Adina in many paleoproductivity studies. Barite, the main carrier of particulate barium in the water column in some locations. We demonstrate that Baexcess (total barium minus the fraction associated

  20. MNRAS 428, 32523261 (2013) doi:10.1093/mnras/sts270 Barium abundances in Cepheids

    E-print Network

    Maciel, Walter Junqueira

    2013-01-01

    MNRAS 428, 3252­3261 (2013) doi:10.1093/mnras/sts270 Barium abundances in Cepheids S. M. Andrievsky; in original form 2012 August 28 ABSTRACT We derived the barium atmospheric abundances for a large sample to 15 kpc, so it is appropriate to investigate the existence of radial barium abundance gradients

  1. Compact high power barium nitrite crystal-based Raman laser at 1197 nm

    E-print Network

    Cheng, Ji-Xin

    Compact high power barium nitrite crystal-based Raman laser at 1197 nm for photoacoustic imaging of fat Rui Li Mikhail N. Slipchenko Pu Wang Ji-Xin Cheng #12;Compact high power barium nitrite crystal such a barrier, we demonstrate the construction and use of a com- pact, barium nitrite crystal-based Raman laser

  2. Discrete barite particles and barium as tracers of paleoproductivity in South Atlantic sediments

    Microsoft Academic Search

    Franz Gingele; Andreas Dahmke

    1994-01-01

    Geochemical analyses as well as X ray diffraction measurements were carried out on five sediment cores from the eastern Angola Basin and the equatorial divergence of the South Atlantic. Barite concentrations were calculated from total barium concentrations by subtracting the estimated barium background supplied by ``nonbarite'' barium carriers. Barite concentrations assessed by this geochemical method show a good correspondence to

  3. 49 CFR 173.182 - Barium azide-50 percent or more water wet.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 2010-10-01 2010-10-01 false Barium azide-50 percent or more water wet. 173...Other Than Class 1 and Class 7 § 173.182 Barium azide—50 percent or more water wet. Barium azide—50 percent or more water wet,...

  4. PHYSICAL REVIEW A 81, 052328 (2010) Hyperfine and optical barium ion qubits

    E-print Network

    Blinov, Boris

    2010-01-01

    PHYSICAL REVIEW A 81, 052328 (2010) Hyperfine and optical barium ion qubits M. R. Dietrich,* N these profoundly quantum systems. Despite a long history in ion trapping [3­5], barium has never previously been a natural source without isotope-selective ionization [6,7]. Barium possesses a long-lived metastable state

  5. M-type barium hexaferrite synthesis and characterization for phase shifter applications

    E-print Network

    Laughlin, David E.

    M-type barium hexaferrite synthesis and characterization for phase shifter applications A. T. Wise subject to AIP license or copyright; see http://jap.aip.org/about/rights_and_permissions #12;M-type barium-type barium hexaferrite films have been grown by liquid phase epitaxy and examined by x-ray diffraction

  6. 1 Barium and carbon fluxes in the Canadian Arctic Archipelago 2 Helmuth Thomas,1

    E-print Network

    Boyer, Edmond

    1 Barium and carbon fluxes in the Canadian Arctic Archipelago 2 Helmuth Thomas,1 Elizabeth Shadwick Barium (Ba) in the Amundsen Gulf, 8 southeastern Beaufort Sea, was monitored over a full year from observed at river mouths, the lowest concentrations are found in water 12 masses of Atlantic origin. Barium

  7. Phase associations of barium in marine sediments Meagan Eagle Gonneea *, Adina Paytan 1

    E-print Network

    Paytan, Adina

    Phase associations of barium in marine sediments Meagan Eagle Gonneea *, Adina Paytan 1 Department 2006 Abstract Barium (Ba) is associated with various phases in marine sediments, including carbonates-export productivity. D 2005 Elsevier B.V. All rights reserved. Keywords: Barium; Barite; Marine sediment; Sedimentary

  8. Noncollinear Optical Frequency Doubling in Strontium Barium Niobate Arthur R. Tunyagi, Michael Ulex, and Klaus Betzler*

    E-print Network

    Osnabrück, Universität

    Noncollinear Optical Frequency Doubling in Strontium Barium Niobate Arthur R. Tunyagi, Michael Ulex of a novel noncollinear optical second-harmonic generation mechanism is reported. In strontium barium niobate mechanism which we detected in crystals of strontium barium niobate (SBN)--cone-shaped second

  9. 49 CFR 173.182 - Barium azide-50 percent or more water wet.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 2011-10-01 2011-10-01 false Barium azide-50 percent or more water wet. 173...Other Than Class 1 and Class 7 § 173.182 Barium azide—50 percent or more water wet. Barium azide—50 percent or more water wet,...

  10. Optogalvanic detection of barium high-lying levels with a two-step pulsed laser excitation

    E-print Network

    Boyer, Edmond

    L-513 Optogalvanic detection of barium high-lying levels with a two-step pulsed laser excitation P barium have been investigated by using a two-step pulsed laser excitation combined with an optogalvanic number for the ground state. In barium the ground level has a J = 0 value, so with a two- photon process

  11. Introduction Strontium Barium Niobate k-Space Spectroscopy Results Conclusions Unraveling Relaxor Phase Transitions by

    E-print Network

    Osnabrück, Universität

    Introduction Strontium Barium Niobate k-Space Spectroscopy Results Conclusions Unraveling Relaxor 2009 WILLIAMSBURG WORKSHOP ON FUNDAMENTAL PHYSICS OF FERROELECTRICS #12;Introduction Strontium Barium ferroelectrics Introduction Strontium Barium Niobate k-Space Spectroscopy Results Conclusions SBN ­ SrxBa1-xNb2O6

  12. 75 FR 36629 - Barium Chloride From the People's Republic of China: Continuation of Antidumping Duty Order

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-28

    ...Trade Administration [A-570-007] Barium Chloride From the People's Republic...revocation of the antidumping duty order on barium chloride from the People's Republic...review of the antidumping duty order on barium chloride from the PRC pursuant to...

  13. Influence of Ba content on grain size and dynamics of crystallization in barium ferrite thin films

    E-print Network

    Laughlin, David E.

    Influence of Ba content on grain size and dynamics of crystallization in barium ferrite thin films of the crystallization process, which ultimately determines the grain size, were studied in barium ferrite thin films. Rapid thermal annealing was used to crystallize the amorphous as-deposited barium ferrite films

  14. Processing of yttrium-doped barium zirconate for high proton conductivity

    E-print Network

    Processing of yttrium-doped barium zirconate for high proton conductivity Peter Babilo Materials the transport properties of yttrium-doped barium zirconate (BYZ) have been explored, with the aim of attaining are arguably those of Iguchi et al.1 Using yttrium-doped barium cerate as an electrolyte, these authors

  15. The enhanced and optimal piezoelectric coefficients in single crystalline barium titanate with engineered domain configurations

    E-print Network

    Li, Jiangyu

    The enhanced and optimal piezoelectric coefficients in single crystalline barium titanate the effective electromechanical moduli of tetragonal barium titanate poled along 111 direction, where that poling along 111 direction does not lead to the optimal domain configuration, since barium titanate poled

  16. Discrete Barium Strontium Titanate (BST) Thin-Film Interdigital Varactors on Alumina: Design, Fabrication, Characterization, and

    E-print Network

    Discrete Barium Strontium Titanate (BST) Thin-Film Interdigital Varactors on Alumina: Design, Raleigh, NC-27695-7914, USA. Email:jayeshnath@ieee.org Abstract -- Discrete Barium Strontium Titanate (BST, capacitors, BST, ferroelectric, thin-film, barium strontium titanate, bandpass filter, IP3, ACPR, temperature

  17. Dielectric tunability of graded barium strontium titanate multilayers: Effect of thermal strains

    E-print Network

    Alpay, S. Pamir

    Dielectric tunability of graded barium strontium titanate multilayers: Effect of thermal strains M TEC of a multilayered barium strontium titanate Ba1-ySryTiO3 BST ferroelectric heterostructure such as barium strontium titanate Ba1-ySryTiO3 BST have emerged as leading candidates for such applications due

  18. Nanoscale Patterning of Barium Titanate on Block Tu Lee,, Nan Yao, and Ilhan A. Aksay*,,

    E-print Network

    Aksay, Ilhan A.

    Nanoscale Patterning of Barium Titanate on Block Copolymers Tu Lee,, Nan Yao, and Ilhan A. Aksay of polystyrene-polybutadiene-polystyrene (Kraton D1102) has been used to pattern barium titanate precursor on the unsaturated carbon bonds in the polybutadiene matrix with antistereochemistry. Anchoring the barium titanate

  19. Effect of depolarization and coercivity on actuation strains due to domain switching in barium titanate

    E-print Network

    Shu, Yi-Chung

    . The theoretical maximum actuation strain such as 1.1% for barium titanate crystals, however, has not been observed in thermally aged barium titanate BaTiO3 crystals.2 Burcsu et al. examined the 90°- switching-induced strainEffect of depolarization and coercivity on actuation strains due to domain switching in barium

  20. Optimization of High Tunability Barium Strontium Titanate Thin Films Grown by RF Magnetron

    E-print Network

    York, Robert A.

    Optimization of High Tunability Barium Strontium Titanate Thin Films Grown by RF Magnetron Abstract-- Barium strontium titanate is a solid solution perovskite with a field-dependent permittivity.7 MV/cm. I. INTRODUCTION In recent years there has been much interest in thin-film barium strontium

  1. Effect of Microwave Frequency on Hydrothermal Synthesis of Nanocrystalline Tetragonal Barium Titanate

    E-print Network

    Dutta, Prabir K.

    , 2007; ReVised Manuscript ReceiVed: April 29, 2008 Nanocrystalline tetragonal barium titanate (BaTiO3. The dependence of properties of barium titanate on microwave frequency could be due to different transverse titanate with different morphol- ogies, particle sizes, and dispersions. Barium titanate exists in several

  2. Polyaniline stabilized barium titanate nanoparticles reinforced epoxy nanocomposites with high dielectric

    E-print Network

    Guo, John Zhanhu

    Polyaniline stabilized barium titanate nanoparticles reinforced epoxy nanocomposites with high*b and Zhanhu Guo*a Epoxy polymer nanocomposites (PNCs) filled with both barium titanate (BaTiO3) (500 and 100 systems.7 Barium titanate (BaTiO3) exhibiting unique ferroelectricity,8 piezoelectricity9 and high

  3. Barium Titanate Nanoparticles in Block Copolymer Tu Lee,*,, Nan Yao, Hiroaki Imai,, and Ilhan A. Aksay,

    E-print Network

    Aksay, Ilhan A.

    Barium Titanate Nanoparticles in Block Copolymer Tu Lee,*,, Nan Yao, Hiroaki Imai,, and Ilhan A-polybutadiene-polystyrene (Kraton D1102). The barium titanated Kraton thin film had remnants of the cylindrical morphology of a plain Kraton thin film with an interdomain spacing of 23 nm. The procedure of barium titanation

  4. Shape-Controlled Monocrystalline Ferroelectric Barium Titanate Nanostructures: From Nanotubes and Nanowires to Ordered Nanostructures

    E-print Network

    Srinivasan, Gopalan

    Shape-Controlled Monocrystalline Ferroelectric Barium Titanate Nanostructures: From Nanotubes of barium titanate nanostructures using Na2Ti3O7 nanotubes and nanowires as synthetic precursors. A variety and nanowires and the temperature- dependent crystal structure of barium titanate. Various nanoblocks, including

  5. Strain effect on coercive field of epitaxial barium titanate thin films S. Choudhury,1,a

    E-print Network

    Chen, Long-Qing

    Strain effect on coercive field of epitaxial barium titanate thin films S. Choudhury,1,a Y. L. Li,1 polarizations of 001 -oriented epitaxial barium titanate thin films using the phase-field approach by strain. We use 001 -oriented epitaxial barium titanate BTO thin films as a model system. In the phase

  6. Single-crystal barium titanate thin films by ion slicing T. Izuhara,a)

    E-print Network

    Reeves, Mark E.

    Single-crystal barium titanate thin films by ion slicing T. Izuhara,a) I.-L. Gheorma, and R. M, D.C. 20052 Received 19 September 2002; accepted 3 December 2002 Thin barium titanate films, 0.5­8 m.1063/1.1540727 Barium titanate, BaTiO3 BTO , is a ferroelectric crystal whose outstanding electrical and optical

  7. The effect of stress on the dielectric properties of barium strontium titanate thin films

    E-print Network

    Suo, Zhigang

    The effect of stress on the dielectric properties of barium strontium titanate thin films T. M Barium strontium titanate thin films are being developed as capacitors in dynamic random access memories to their large permittivities, barium strontium titan- ate BST bulk ceramics have long been used to make high

  8. Single-Crystalline Barium Titanate By Jeffrey J. Urban, Jonathan E. Spanier, Lian Ouyang,

    E-print Network

    Heller, Eric

    Single-Crystalline Barium Titanate Nanowires By Jeffrey J. Urban, Jonathan E. Spanier, Lian Ouyang composed of barium titanate (BaTiO3), a prototypical displacive ferroelectric material[14,15] that yields-volatile memory devices with an integration density approaching 1 terabit cm±2 . 2. Synthesis of Barium Titanate

  9. High tunability barium strontium titanate thin films for rf circuit applications

    E-print Network

    York, Robert A.

    High tunability barium strontium titanate thin films for rf circuit applications N. K. Pervez,a) P) Large variations in the permittivity of rf magnetron sputtered thin-film barium strontium titanate have/cm. © 2004 American Institute of Physics. [DOI: 10.1063/1.1818724] Barium strontium titanate (BST) is a solid

  10. Operation of multiple 90 switching systems in barium titanate single crystals under electromechanical loading

    E-print Network

    Shu, Yi-Chung

    Operation of multiple 90° switching systems in barium titanate single crystals under Hysteresis evolution of a 5 5 2 mm3 barium titanate single crystal during a combined electromechanical of barium titanate BaTiO3 single crystals under combined electrical and mechanical loadings was examined

  11. Phase diagrams and dielectric response of epitaxial barium strontium titanate films: A theoretical analysis

    E-print Network

    Alpay, S. Pamir

    Phase diagrams and dielectric response of epitaxial barium strontium titanate films: A theoretical for publication 7 March 2002 We develop phase diagrams for single-domain epitaxial barium strontium titanate films. DOI: 10.1063/1.1473675 I. INTRODUCTION Thin films of barium strontium titanate BaxSr1 xTiO3 ,(BST

  12. Optimization of the tunability of barium strontium titanate films via epitaxial stresses

    E-print Network

    Alpay, S. Pamir

    Optimization of the tunability of barium strontium titanate films via epitaxial stresses Z.-G. Ban The tunability of epitaxial barium strontium titanate films is analyzed theoretically using a phenomenological.1063/1.1524310 I. INTRODUCTION Thin films of barium strontium titanate (BaxSr1 xTiO3, BST have long been recognized

  13. Fabrication, characterization and microwave properties of polyurethane nanocomposites reinforced with iron oxide and barium titanate

    E-print Network

    Guo, John Zhanhu

    with iron oxide and barium titanate nanoparticles Z. Guo a,*, S.-E. Lee a , H. Kim a , S. Park a , H.T. Hahn the introduction of the dielectric barium titanate nanoparticle into Fe2O3/PU nanocomposites. The permeability (PU) nanocomposites reinforced with magnetic iron oxide nanoparticles and/or dielectric barium

  14. Microwave dielectric properties of graded barium strontium titanate films M. W. Cole,1,a

    E-print Network

    Alpay, S. Pamir

    Microwave dielectric properties of graded barium strontium titanate films M. W. Cole,1,a C. V, delay lines, filters, and phase shifters for steerable antennas.1­3 Barium strontium titanate BaxSr1-x Received 8 April 2008; accepted 13 April 2008; published online 8 May 2008 Compositionally graded barium

  15. Journal of Crystal Growth 300 (2007) 330335 Growth and optical property characterization of textured barium

    E-print Network

    Atwater, Harry

    of textured barium titanate thin films for photonic applications Matthew J. DickenÃ?, Kenneth Diest, Young layers on amorphous and silicon substrates. Growth of highly oriented barium titanate films of the thin films grown with and without oxygen plasma. We have shown that optical quality barium titanate

  16. Structure evolution and dielectric behavior of polystyrene-capped barium titanate nanoparticles

    E-print Network

    Lin, Zhiqun

    Structure evolution and dielectric behavior of polystyrene-capped barium titanate nanoparticles H35600g Polystyrene-capped barium titanate (BaTiO3) nanoparticles with sizes of 11 nm and 27 nm were nanocrystals. 1. Introduction Barium titanate (BaTiO3), one of the most commonly used perovskite compounds

  17. White dwarf kicks and implications for barium stars

    NASA Astrophysics Data System (ADS)

    Izzard, R. G.; Church, R. P.; Dermine, T.

    The barium stars have caused much grief in the field of binary stellar evolution. They are often eccentric when they should be circular and are not found to have periods longer than 104 days even though wind accretion should still be efficient at such separations. We address both these problems by introducing a kick to white dwarfs when they are born, thus solving the eccentricity problem, and imposing strong orbital angular momentum loss to shrink barium-star binaries down to the observed periods. Whilst our angular momentum prescription is hard to justify for the barium stars it shows that strong angular momentum loss is necessary to reproduce the observed period-eccentricity distribution. We are investigating whether this can be obtained from a circumbinary disc.

  18. Barium Levels in Soils and Centella asiatica.

    PubMed

    Ong, Ghim Hock; Yap, Chee Kong; Mahmood, Maziah; Tan, Soon Guan; Hamzah, Suhaimi

    2013-08-01

    In this study, Centella asiatica and surface soils were collected from 12 sampling sites in Peninsular Malaysia, and the barium (Ba) concentrations were determined. The Ba concentration [?g/g dry weight (dw)] was 63.72 to 382.01 ?g/g in soils while in C. asiatica, Ba concentrations ranged from 5.05 to 21.88 ?g/g for roots, 3.31 to 11.22 ?g/g for leaves and 2.37 to 6.14 ?g/g for stems. In C. asiatica, Ba accumulation was found to be the highest in roots followed by leaves and stems. The correlation coefficients (r) of Ba between plants and soils were found to be significantly positively correlated, with the highest correlation being between roots-soils (r=0.922, p<005), followed by leaves-soils (r=0.890, p<005) and stems-soils (r=0.848, p<005). This indicates that these three parts of C. asiatica are good biomonitors of Ba pollution. For the transplantation study, four sites were selected as unpolluted [(Universiti Putra Malaysia (UPM)], semi-polluted (Seri Kembangan and Balakong) and polluted sites (Juru). Based on the transplantation study under experimental field and laboratory conditions, Ba concentrations in C. asiatica were significantly (p<0.05) higher after three weeks of exposure at Seri Kembangan, Balakong and Juru. Thus, these experimental findings confirm that the leaves, stems and roots of C. asiatica can reflect the Ba levels in the soils where this plant is found. Three weeks after back transplantation to clean soils, the Ba levels in C. asiatica were still higher than the initial Ba level even though Ba elimination occurred. In conclusion, the leaves, stems and roots of C. asiatica are good biomonitors of Ba pollution. PMID:24575242

  19. Selectivity in biomineralization of barium and strontium.

    PubMed

    Krejci, Minna R; Wasserman, Brian; Finney, Lydia; McNulty, Ian; Legnini, Daniel; Vogt, Stefan; Joester, Derk

    2011-11-01

    The desmid green alga Closterium moniliferum belongs to a small number of organisms that form barite (BaSO(4)) or celestite (SrSO(4)) biominerals. The ability to sequester Sr in the presence of an excess of Ca is of considerable interest for the remediation of (90)Sr from the environment and nuclear waste. While most cells dynamically regulate the concentration of the second messenger Ca(2+) in the cytosol and various organelles, transport proteins rarely discriminate strongly between Ca, Sr, and Ba. Herein, we investigate how these ions are trafficked in C. moniliferum and how precipitation of (Ba,Sr)SO(4) crystals occurs in the terminal vacuoles. Towards this goal, we simultaneously visualize intracellular dynamics of multiple elements using X-ray fluorescence microscopy (XFM) of cryo-fixed/freeze-dried samples. We correlate the resulting elemental maps with ultrastructural information gleaned from freeze-fracture cryo-SEM of frozen-hydrated cells and use micro X-ray absorption near edge structure (micro-XANES) to determine sulfur speciation. We find that the kinetics of Sr uptake and efflux depend on external Ca concentrations, and Sr, Ba, and Ca show similar intracellular localization. A highly ion-selective cross-membrane transport step is not evident. Based on elevated levels of sulfate detected in the terminal vacuoles, we propose a "sulfate trap" model, where the presence of dissolved barium leads to preferential precipitation of (Ba,Sr)SO(4) due to its low solubility relative to SrSO(4) and CaSO(4). Engineering the sulfate concentration in the vacuole may thus be the most direct way to increase the Sr sequestered per cell, an important consideration in using desmids for phytoremediation of (90)Sr. PMID:21871966

  20. Timed barium esophagram in achalasia types.

    PubMed

    Zanoni, A; Rice, T W; Lopez, R; Birgisson, S; Shay, S S; Thota, P N; Baker, M E; Raymond, D P; Blackstone, E H

    2015-05-01

    Relationships of timed barium esophagram (TBE) findings to achalasia types defined by high-resolution manometry (HRM) have not been elucidated. Therefore, we correlated preoperative TBE and HRM measurements in achalasia types and related these to patient symptoms and prior treatments. From 2006 to 2013, 248 achalasia patients underwent TBE and HRM before Heller myotomy. TBE height and width were recorded at 1 and 5 minutes; HRM measured lower esophageal sphincter mean basal pressure, integrated relaxation pressure (IRP), and mean esophageal body contraction amplitude. Achalasia was classified into types I (25%), II (65%), and III (9.7%). TBE height at 5 minutes was higher for I (median 8?cm; interquartile range 6-12) and II (8?cm; 8-11) than for III (1?cm; 0-7). TBE width at 5 minutes was widest (3?cm; 2-4), narrower in II (2?cm; 2-3), and narrowest in I (1?cm; 0-2), P?

  1. Barium Levels in Soils and Centella asiatica

    PubMed Central

    Ong, Ghim Hock; Yap, Chee Kong; Mahmood, Maziah; Tan, Soon Guan; Hamzah, Suhaimi

    2013-01-01

    In this study, Centella asiatica and surface soils were collected from 12 sampling sites in Peninsular Malaysia, and the barium (Ba) concentrations were determined. The Ba concentration [?g/g dry weight (dw)] was 63.72 to 382.01 ?g/g in soils while in C. asiatica, Ba concentrations ranged from 5.05 to 21.88 ?g/g for roots, 3.31 to 11.22 ?g/g for leaves and 2.37 to 6.14 ?g/g for stems. In C. asiatica, Ba accumulation was found to be the highest in roots followed by leaves and stems. The correlation coefficients (r) of Ba between plants and soils were found to be significantly positively correlated, with the highest correlation being between roots-soils (r=0.922, p<005), followed by leaves-soils (r=0.890, p<005) and stems-soils (r=0.848, p<005). This indicates that these three parts of C. asiatica are good biomonitors of Ba pollution. For the transplantation study, four sites were selected as unpolluted [(Universiti Putra Malaysia (UPM)], semi-polluted (Seri Kembangan and Balakong) and polluted sites (Juru). Based on the transplantation study under experimental field and laboratory conditions, Ba concentrations in C. asiatica were significantly (p<0.05) higher after three weeks of exposure at Seri Kembangan, Balakong and Juru. Thus, these experimental findings confirm that the leaves, stems and roots of C. asiatica can reflect the Ba levels in the soils where this plant is found. Three weeks after back transplantation to clean soils, the Ba levels in C. asiatica were still higher than the initial Ba level even though Ba elimination occurred. In conclusion, the leaves, stems and roots of C. asiatica are good biomonitors of Ba pollution. PMID:24575242

  2. Compact pulse forming line using barium titanate ceramic material.

    PubMed

    Kumar Sharma, Surender; Deb, P; Shukla, R; Prabaharan, T; Shyam, A

    2011-11-01

    Ceramic material has very high relative permittivity, so compact pulse forming line can be made using these materials. Barium titanate (BaTiO(3)) has a relative permittivity of 1200 so it is used for making compact pulse forming line (PFL). Barium titanate also has piezoelectric effects so it cracks during high voltages discharges due to stresses developed in it. Barium titanate is mixed with rubber which absorbs the piezoelectric stresses when the PFL is charged and regain its original shape after the discharge. A composite mixture of barium titanate with the neoprene rubber is prepared. The relative permittivity of the composite mixture is measured to be 85. A coaxial pulse forming line of inner diameter 120 mm, outer diameter 240 mm, and length 350 mm is made and the composite mixture of barium titanate and neoprene rubber is filled between the inner and outer cylinders. The PFL is charged up to 120 kV and discharged into 5 ? load. The voltage pulse of 70 kV, 21 ns is measured across the load. The conventional PFL is made up of oil or plastics dielectrics with the relative permittivity of 2-10 [D. R. Linde, CRC Handbook of Chemistry and Physics, 90th ed. (CRC, 2009); Xia et al., Rev. Sci. Instrum. 79, 086113 (2008); Yang et al., Rev. Sci. Instrum. 81, 43303 (2010)], which increases the length of PFL. We have reported the compactness in length achieved due to increase in relative permittivity of composite mixture by adding barium titanate in neoprene rubber. PMID:22129008

  3. Compact pulse forming line using barium titanate ceramic material

    NASA Astrophysics Data System (ADS)

    Kumar Sharma, Surender; Deb, P.; Shukla, R.; Prabaharan, T.; Shyam, A.

    2011-11-01

    Ceramic material has very high relative permittivity, so compact pulse forming line can be made using these materials. Barium titanate (BaTiO3) has a relative permittivity of 1200 so it is used for making compact pulse forming line (PFL). Barium titanate also has piezoelectric effects so it cracks during high voltages discharges due to stresses developed in it. Barium titanate is mixed with rubber which absorbs the piezoelectric stresses when the PFL is charged and regain its original shape after the discharge. A composite mixture of barium titanate with the neoprene rubber is prepared. The relative permittivity of the composite mixture is measured to be 85. A coaxial pulse forming line of inner diameter 120 mm, outer diameter 240 mm, and length 350 mm is made and the composite mixture of barium titanate and neoprene rubber is filled between the inner and outer cylinders. The PFL is charged up to 120 kV and discharged into 5 ? load. The voltage pulse of 70 kV, 21 ns is measured across the load. The conventional PFL is made up of oil or plastics dielectrics with the relative permittivity of 2-10 [D. R. Linde, CRC Handbook of Chemistry and Physics, 90th ed. (CRC, 2009); Xia et al., Rev. Sci. Instrum. 79, 086113 (2008); Yang et al., Rev. Sci. Instrum. 81, 43303 (2010)], which increases the length of PFL. We have reported the compactness in length achieved due to increase in relative permittivity of composite mixture by adding barium titanate in neoprene rubber.

  4. Psychiatric Disorders in Outpatients With Borderline Intellectual Functioning: Comparison With Both Outpatients From Regular Mental Health Care and Outpatients With Mild Intellectual Disabilities

    PubMed Central

    Wieland, Jannelien; Haan, Sara Kapitein-de; Zitman, Frans G

    2014-01-01

    Objective: In the Netherlands, patients with borderline intellectual functioning are eligible for specialized mental health care. This offers the unique possibility to examine the mix of psychiatric disorders in patients who, in other countries, are treated in regular outpatient mental health care clinics. Our study sought to examine the rates of all main Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision, Axis I psychiatric diagnoses in outpatients with borderline intellectual functioning of 2 specialized regional psychiatric outpatient departments and to compare these with rates of the same disorders in outpatients from regular mental health care (RMHC) and outpatients with mild intellectual disabilities (IDs). Method: Our study was a cross-sectional, anonymized medical chart review. All participants were patients from the Dutch regional mental health care provider Rivierduinen. Diagnoses of patients with borderline intellectual functioning (borderline intellectual functioning group; n = 235) were compared with diagnoses of patients from RMHC (RMHC group; n = 1026) and patients with mild ID (mild ID group; n = 152). Results: Compared with the RMHC group, psychotic and major depressive disorders were less common in the borderline intellectual functioning group, while posttraumatic stress disorder and V codes were more common. Compared with the mild ID group, psychotic disorders were significantly less common. Conclusion: Mental health problems in people with borderline intellectual functioning may not be well addressed in general psychiatry, or by standard psychiatry for patients with ID. Specific attention to this group in clinical practice and research may be warranted lest they fall between 2 stools. PMID:25007114

  5. Ionization and expansion of barium clouds in the ionosphere

    NASA Technical Reports Server (NTRS)

    Ma, T.-Z.; Schunk, R. W.

    1993-01-01

    A recently envelope 3D model is used here to study the motion of the barium clouds released in the ionosphere, including the ionization stage. The ionization and the expansion of the barium clouds and the interaction between the clouds and the background ions are investigated using three simulations: a cloud without a directional velocity, a cloud with an initial velocity of 5 km/s across the B field, and a cloud with initial velocity components of 2 km/s both along and across the B field.

  6. Photoionization and Photoelectric Loading of Barium Ion Traps

    E-print Network

    A. V. Steele; L. R. Churchill; P. F. Griffin; M. S. Chapman

    2007-03-22

    Simple and effective techniques for loading barium ions into linear Paul traps are demonstrated. Two-step photoionization of neutral barium is achieved using a weak intercombination line (6s2 1S0 6s6p 3P1, 791 nm) followed by excitation above the ionization threshold using a nitrogen gas laser (337 nm). Isotopic selectivity is achieved by using a near Doppler-free geometry for excitation of the triplet 6s6p 3P1 state. Additionally, we report a particularly simple and efficient trap loading technique that employs an in-expensive UV epoxy curing lamp to generate photoelectrons.

  7. Methods for producing monodispersed particles of barium titanate

    DOEpatents

    Hu, Zhong-Cheng (Knoxville, TN)

    2001-01-01

    The present invention is a low-temperature controlled method for producing high-quality, ultrafine monodispersed nanocrystalline microsphere powders of barium titanate and other pure or composite oxide materials having particles ranging from nanosized to micronsized particles. The method of the subject invention comprises a two-stage process. The first stage produces high quality monodispersed hydrous titania microsphere particles prepared by homogeneous precipitation via dielectric tuning in alcohol-water mixed solutions of inorganic salts. Titanium tetrachloride is used as an inorganic salt precursor material. The second stage converts the pure hydrous titania microsphere particles into crystalline barium titanate microsphere powders via low-temperature, hydrothermal reactions.

  8. Study of the photovoltaic effect in thin film barium titanate

    NASA Technical Reports Server (NTRS)

    Grannemann, W. W.; Dharmadhikari, V. S.

    1981-01-01

    The photoelectric effect in structures consisting of metal deposited barium titanate film silicon is described. A radio frequency sputtering technique is used to deposit ferroelectric barium titantate films on silicon and quartz. Film properties are measured and correlated with the photoelectric effect characteristics of the films. It was found that to obtain good quality pin hole free films, it is necessary to reduce the substrate temperature during the last part of the deposition. The switching ability of the device with internal applied voltage is improved when applied with a ferroelectric memory device.

  9. Assessing anxious features in depressed outpatients.

    PubMed

    McClintock, Shawn M; Husain, Mustafa M; Bernstein, Ira H; Wisniewski, Stephen R; Trivedi, Madhukar H; Morris, David; Alpert, Jonathan; Warden, Diane; Luther, James F; Kornstein, Susan G; Biggs, Melanie M; Fava, Maurizio; Rush, A John

    2011-12-01

    Both the 17-item Hamilton Rating Scale for Depression (HRSD(17)) and 30-item Inventory of Depressive Symptomatology - Clinician-rated (IDS-C(30) ) contain a subscale that assesses anxious symptoms. We used classical test theory and item response theory methods to assess and compare the psychometric properties of the two anxiety subscales (HRSD(ANX) and IDS-C(ANX)) in a large sample (N = 3453) of outpatients with non-psychotic major depressive disorder in the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) study. Approximately 48% of evaluable participants had at least one concurrent anxiety disorder by the self-report Psychiatric Diagnostic Screening Questionnaire (PDSQ). The HRSD(ANX) and IDS-C(ANX) were highly correlated (r = 0.75) and both had moderate internal consistency given their limited number of items (HRSD(ANX) Cronbach's alpha = 0.48; IDS-C(ANX) Cronbach's alpha = 0.58). The optimal threshold for ascribing the presence/absence of anxious features was found at a total score of eight or nine for the HRSD(ANX) and seven or eight for the IDS-C(ANX) . It would seem beneficial to delete item 17 (loss of insight) from the HRSD(ANX) as it negatively correlated with the scale's total score. Both the HRSD(ANX) and IDS-C(ANX) subscales have acceptable psychometric properties and can be used to identify anxious features for clinical or research purposes. PMID:22057975

  10. [The state of outpatient psychotherapy in Germany].

    PubMed

    Zepf, Siegfried; Mengele, Ute; Hartmann, Sebastian

    2003-01-01

    This paper presents the results of a study of the state of adult outpatient psychotherapy in Germany after the PTG came into force. 1042 psychotherapists were questioned on certain issues. One result was that patients have to wait 4.6 months for psychotherapy and that every second patient asking for a diagnostic interview and possible treatment was refused. Of those who were given a diagnostic interview 35 % were not taken into treatment, although disturbances were diagnosed--such as tinnitus, pain, organic disturbances with psychic complications, suicidal tendencies, anorexia nervosa, addiction, psychosomatic illnesses, personality disorders, psychotic disorders--would normally demand psychotherapeutic treatment. Furthermore only 56 % of those patients who Löcherbach et al. considered needing and wanting psychotherapeutic treatment were actually in a G IV psychotherapy. Apart from this the possibility of getting psychotherapy as well as the kind of psychotherapy proved to be dependent on the kind of medical insurance. Different payments by the insurance companies caused longer waiting times for patients and determined the choice of psychotherapy by the psychotherapists. PMID:12649759

  11. Laboratory tests and compliance of dermatologic outpatients

    PubMed Central

    Kim, Jaehwan

    2013-01-01

    Laboratory tests, including blood tests and urine analysis, are frequently performed in the dermatology outpatient clinic, but doctors often do not consider the cognitive or psychological effect of the examinations. Based on terror management theory, we hypothesized that performing laboratory tests increases the patient’s fear of mortality, and therefore has a positive effect on the patient’s attitude toward the doctor’s recommendations and willingness to accept them. The study employed a single factor between-subjects design, using a questionnaire completed by the patients. One group consisted of patients who had undergone laboratory tests 1 week before the survey, and the other group consisted of patients who had not undergone a laboratory test. Although the differences between two groups were not statistically significant, the patients who had laboratory tests had tendency to show even lower positive attitude toward the doctor’s recommendations and less intention to follow the recommendations. In contrast to our hypothesis, performing laboratory tests does not subliminally increase patients’ fears or anxieties about their disease or their compliance with doctors’ recommendations. PMID:24555101

  12. 76 FR 49458 - TRICARE; Hospital Outpatient Radiology Discretionary Appeal Adjustments

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-10

    ...Secretary TRICARE; Hospital Outpatient Radiology Discretionary Appeal Adjustments AGENCY...opportunity for net adjusted payments for radiology services for which TRICARE payments were...services, DoD has determined that, for radiology services specified in the...

  13. The Role of the Dietitian in an Outpatient Heart Failure Center

    Microsoft Academic Search

    T. Kuehneman; D. Saulsbury; P. L. Splett

    1997-01-01

    LEARNING OUTCOME: To identify a model for the role of a dietitian in an outpatient heart failure center and to identify outcome indicators appropriate for use with congestive heart failure outpatients.The establishment of outpatient heart failure centers is recognized as an essential step in decreasing the staggering cost of caring for the patient with congestive heart failure (CHF). These outpatient

  14. Buprenorphine Outpatient Outcomes Project: can Suboxone be a viable outpatient option for heroin addiction?

    PubMed Central

    Sittambalam, Charmian D.; Vij, Radhika; Ferguson, Robert P.

    2014-01-01

    Background Opioid dependence treatment traditionally involves methadone clinics, for which dispensing schedules can be cumbersome. Buprenorphine, a partial agonist of the mu receptor and antagonist of the kappa receptor, is a potential outpatient alternative to methadone. Funded by a grant from the State of Maryland's Community Health Resources Commission (CHRC), the Buprenorphine Outpatient Outcomes Project (BOOP) evaluates the outcome of Suboxone (buprenorphine/naloxone) treatment on abstinence from heroin use, rates of emergency room visits and hospitalizations, legal issues, and quality of life. Methods Active heroin users were recruited between June 2007 and June 2010 and induction therapy with Suboxone was instituted during hospitalization. Once discharged, patients were followed as outpatients for maintenance treatment and counseling. Data were collected from electronic medical records, Maryland state legal records, and SF-36® Health Surveys regarding several parameters and patients were categorized according to duration of treatment with Suboxone into one of three groups: <1 month, 1–3 months, and >3 months. Results A total of 220 participants were included in the study. The age range of participants was 18–67 years with most being African American males. Eighty-three (38%) remained in the study for at least 1 month, with 37 of the 83 (45%) remaining in treatment for >3 months. Ten of the 37 (27%) never relapsed after their longest period of abstinence from heroin. During the first year after initiating treatment with Suboxone, hospitalization and emergency room visit rates for all 220 participants decreased by 45 and 23%, respectively, as compared to the year prior to starting treatment. The number of legal charges for drug possession decreased from 70 to 62. Anecdotally, the quality of life seemed to improve in those who were treated with Suboxone for longer periods of time and received regular counseling. Conclusion Overall, Suboxone is an effective treatment method for heroin addiction and is a viable outpatient therapy option. Individualized treatment plans and counseling must be implemented for maximum benefits to be seen. Retention of patients for a long duration of therapy was difficult, but for those who did remain, benefits were seen in overall health, abstinence from heroin use, cognition, and quality of life. PMID:24765257

  15. Outpatient Vascular Intervention: A Two-Year Experience

    SciTech Connect

    Macdonald, Sumaira; Thomas, Steven M.; Cleveland, Trevor J.; Gaines, Peter A. [Sheffield Vascular Institute, Firth 4, Northern General Hospital, Sheffield Vascular Institute, Herries Road, Sheffield S7 5AU (United Kingdom)

    2002-10-15

    Purpose: To retrospectively analyze the outcome of a range of interventional vascular procedures performed on outpatients. Methods: Suitability for outpatient procedures was assessed according to agreed protocols. An episode was defined as any procedure/s through a single access site at one attendance. Retrospective case-note review was performed. Results: There were 693 outpatient episodes between April 1998 and May 2000 (290 interventional, and 403 diagnostic procedures),comprising 25% (693/2769) of the total workload. Follow-up is available in 214; 38 of these were transfers from outlying hospitals and were excluded from analysis. One hundred and seventy-six were true outpatients. There were 98 iliac and 46 femoropopliteal interventions,2 aortic stents, 1 renal and 5 upper-limb angioplasties (PTAs), 5 embolizations, 8 Hickman lines, 1 line stripping, 3 atherectomies, 1 dialysis-graft PTA and 6 bypass-graft PTAs. Sixty-eight closure devices were used. Twelve patients were converted to inpatients (6.8%,12/176). The readmission rate was 3.4% (6/176). The reattendance rate was 1.1% (2/176), both subsequently attending for outpatient duplex ultrasound examination to exclude pseudoaneurysm. The major complication rate was 3.4% and the delayed major complication rate was 1.7%. Conclusion: Outpatient vascular intervention is safe with appropriate protocols and with careful patient selection. Local vascular services benefit from the release of inpatient beds.

  16. Outpatients revisited: subjective views and clinical decisions in the management of general surgical outpatients in south west England

    Microsoft Academic Search

    A Faulkner; A Saltrese-Taylor; J OBrien; M Williams; C D Collins; S Frankel

    1995-01-01

    STUDY OBJECTIVE--To assess the scope for reducing unnecessary outpatient reattendances, using a benchmark an acute specialty at a site recognised to have an especially low ratio of repeat to new attendances. DESIGN--This was a survey of the re-attendance workload at general surgery outpatient clinics over a three month period. Patient re-booking and discharge rates for different grades of staff; clinicians'

  17. REMOVING BARIUM AND RADIUM THROUGH CALCIUM CATION EXCHANGE

    EPA Science Inventory

    The removal of barium (Ba) and radium (Ra), which are found in many groundwater sources, was achieved in laboratory studies with an ion exchange process. In the studies, a strong acid resin in the calcium form effectively removed Ba(+2) and Ra (+2) to meet standards. The resin wa...

  18. Synthesis and surface properties of submicron barium sulfate particles

    NASA Astrophysics Data System (ADS)

    Zhang, Ming; Zhang, Bao; Li, Xinhai; Yin, Zhoulan; Guo, Xueyi

    2011-10-01

    Barium sulfate particles were synthesized in the presence of EDTA at room temperature. X-ray diffractometry (XRD), Fourier transform infrared resonance (FTIR) and scanning electron microscopy (SEM) were used to characterize the structure and morphology of BaSO 4 particles. The effect of the preparation parameters on the particle size distribution and morphology was investigated. The conditional formation constants of Ba-EDTA at different pH values were calculated. The results show that the size and morphology of BaSO 4 particles can be effectively controlled by adding EDTA in the precipitation process. Among all the operation conditions, the pH value has significant effect on the particle size. The obtained barium sulfate particles are spherical and well dispersed at pH = 9-10. Zeta potentials of BaSO 4 were measured at different pH. The isoelectric point (IEP) of barium sulfate colloid appears at pH 6.92. The model of the solid-solution interface at a particle of BaSO 4 was presented. The FTIR result indicates that the surface of the prepared BaSO 4 absorbs the functional groups of EDTA, which lower the IEP of the barium sulfate particles.

  19. Original article Response to barium selenate supplementation in sheep

    E-print Network

    Boyer, Edmond

    group did not receive any supplement of Se and/or vitamin E. The two groups were managed under the sameOriginal article Response to barium selenate supplementation in sheep kept at pasture supplements in the prevention of dis- orders related to Se deficiency in sheep maintained at pasture

  20. BARIUM AND RADIUM IN WATER TREATMENT PLANT WASTES

    EPA Science Inventory

    Water treatment plants at nine locations (10 plants) in Illinois and Iowa were studied to determine the characteristics and disposal practices for the sludge, brine, and backwash water containing radium (Ra) and/or barium (Ba). The treatment processes in these ten plants include ...

  1. Magnetic and structural characteristics of sputtered barium ferrite thin films

    Microsoft Academic Search

    Jinshan Li; Stephen S. Rosenbluem; Hidetaka Hayashi; Robert Sinclair

    1996-01-01

    ? M curves have been measured on both randomly and perpendicularly oriented barium ferrite thin films. Compared with theoretical simulations, the shape and peak values of the ? M curves suggest that the intergranular exchange interaction in sputtered BaM thin films is negligible. This is similar to the case of oxide particulate media even though the sputtered films are much

  2. Structure and magnetic properties of aerosol synthesized barium ferrite particles

    Microsoft Academic Search

    W. A. Kaczmarek; B. W. Ninham; A. Calka

    1991-01-01

    The aerosol synthesis technique has been employed to produce barium ferrite particles. X-ray and electron diffraction, scanning and transmission microscopy methods were used to find detailed information on crystallography, morphology and chemical composition of as prepared and annealed powders. A detailed study has been made of the correlation between magnetic hysteresis parameters and the inner structure of submicrometer ferrite particles.

  3. BARIUM AND RADIUM REMOVAL FROM GROUNDWATER BY ION EXCHANGE

    EPA Science Inventory

    The primary objective of this study was to determine the applicability of weak acid exchange resin in the hydrogen form for removal of hardness, barium and radium from groundwater. Weak acid resin in the hydrogen form eliminates the addition of sodium to drinking water. The capac...

  4. Long Term Magnetic Stability of Alnico and Barium Ferrite Magnets

    Microsoft Academic Search

    K. J. Kronenberg; M. A. Bohlmann

    1960-01-01

    Alnico and barium ferrite materials do not age at room temperature. The decreases in remanence, occurring with time, are adjustments by the magnet to its environment. Remanence adjustment proceeds with the logarithm of time and amounts to 2% or less one year after magnetization. Remanences in magnets with Hci > 2200 oe show no changes. Also, the smaller the irreversible

  5. Dynamics of a barium release in the magnetospheric tail

    NASA Technical Reports Server (NTRS)

    Mende, S. B.; Swenson, G. R.; Geller, S. P.; Doolittle, J. H.; Haerendel, G.

    1989-01-01

    The late time behavior of the May 13, 1985 magnetotail barium cloud is examined. The bulk dynamics of the cloud are studied based on triangulated data and data from Fabry-Perot Doppler velocity measurements. The changes in cloud morphology in relation to the in situ measurements made by the Ion Release Module satellite are discussed.

  6. PROPOSED ORAL REFERENCE DOSE (RFD) FOR BARIUM AND COMPOUNDS

    EPA Science Inventory

    The Integrated Risk Information System (IRIS) is a database of EPA's consensus opinion of the human health effects that may result from exposure to various substances found in the environment. A Toxicological Review and IRIS Summary were prepared for barium and compounds in 1998 ...

  7. Electron Optical Studies of Barium Titanate Single Crystal Films

    Microsoft Academic Search

    Michiyoshi Tanaka; Goro Honjo

    1964-01-01

    Thin single crystal films of barium titanate prepared by chemical thinning of single crystal plates are studied by transmission electron microscopy and electron diffraction. The films as thin as 1000 Å are found to have the same lattice parameters as the bulk crystals, giving no evidence for the existence of the anomalous surface layer proposed by Känzig et al. The

  8. Nanoshell tubes of ferroelectric lead zirconate titanate and barium titanate

    Microsoft Academic Search

    Yun Luo; Izabela Szafraniak; Nikolai D. Zakharov; Valanoor Nagarajan; Martin Steinhart; Ralf B. Wehrspohn; Joachim H. Wendorff; Ramamoorthy Ramesh; Marin Alexe

    2003-01-01

    Wafer-scale fabrication of ferroelectric oxide nanoshell tubes as well as ordered nanotube arrays have been accomplished using a simple and convenient fabrication method that allows full tailoring of tube dimensions as well as array pattern and size. Using different silicon and alumina templates, barium titanate and lead zirconate titanate tubes with diameters ranging from 50 nm up to several micrometers

  9. Hierarchical Structure-Ferroelectricity Relationships of Barium Titanate Particles

    E-print Network

    Aksay, Ilhan A.

    Review Hierarchical Structure-Ferroelectricity Relationships of Barium Titanate Particles Tu Lee structural levels and to thoroughly review the corresponding structure- ferroelectricity relationships at all). However, the inconsistency of the critical size in the literature, ranging from 15 to 200 nm in diameter,4

  10. Kinetics and mechanisms of hydrothermal synthesis of barium titanate

    SciTech Connect

    Eckert, J.O. Jr.; Hung-Houston, C.C.; Gersten, B.L.; Lencka, M.M.; Riman, R.E. [Rutgers Univ., Piscataway, NJ (United States). Dept. of Ceramics

    1996-11-01

    Reaction mechanisms for the hydrothermal synthesis of barium titanate are evaluated. Feedstocks of barium hydroxide octahydrate and anatase titania are reacted for varying durations (1--72 h) to provide intermediate-stage samples for characterization by transmission electron microscopy/energy-dispersive spectroscopy (TEM/EDS), X-ray diffractometry (XRD), and inductively coupled plasma spectroscopy (ICP) and XRD methods permits the analysis of data with the Johnson-Mehl-Avrami equation. This analysis reveals two reaction-rate regimes. Kinetic analysis, based on reaction progress, yields insight into the first reaction-rate regime but is inconclusive in the analysis of the second reaction-rate regime. In the first regime, at the early stage of barium titanate formation, a dissolution-precipitation mechanism dominates. In contrast, in the second regime, at longer reaction times, an in-situ transformation mechanism is probably dominant. However, multiple reaction mechanisms (e.g., in-situ transformation and dissolution-precipitation) may be competing for rate control. Alternatively, dissolution-precipitation may be the dominant mechanism throughout the barium titanate synthesis, with nucleation and growth controlling the first regime and dissolution rate controlling the second regime.

  11. Oral anticancer agent medication adherence by outpatients.

    PubMed

    Kimura, Michio; Usami, Eiseki; Iwai, Mina; Nakao, Toshiya; Yoshimura, Tomoaki; Mori, Hiromi; Sugiyama, Tadashi; Teramachi, Hitomi

    2014-11-01

    In the present study, medication adherence and factors affecting adherence were examined in patients taking oral anticancer agents. In June 2013, 172 outpatients who had been prescribed oral anticancer agents by Ogaki Municipal Hospital (Ogaki, Gifu, Japan) completed a questionnaire survey, with answers rated on a five-point Likert scale. The factors that affect medication adherence were evaluated using a customer satisfaction (CS) analysis. For patients with good and insufficient adherence to medication, the median ages were 66 years (range, 21-85 years) and 73 years (range, 30-90 years), respectively (P=0.0004), while the median dosing time was 131 days (range, 3-3,585 days) and 219 days (24-3,465 days), respectively (P=0.0447). In 36.0% (62 out of 172) of the cases, there was insufficient medication adherence; 64.5% of those cases (40 out of 62) showed good medication compliance (4-5 point rating score). However, these patients did not fully understand the effects or side-effects of the drugs, giving a score of three points or less. The percentage of patients with good medication compliance was 87.2% (150 out of 172). Through the CS analysis, three items, the interest in the drug, the desire to consult about the drug and the condition of the patient, were extracted as items for improvement. Overall, the medication compliance of the patients taking the oral anticancer agents was good, but the medication adherence was insufficient. To improve medication adherence, a better understanding of the effectiveness and necessity of drugs and their side-effects is required. In addition, the interest of patients in their medication should be encouraged and intervention should be tailored to the condition of the patient. These steps should lead to improved medication adherence. PMID:25295117

  12. Oral anticancer agent medication adherence by outpatients

    PubMed Central

    KIMURA, MICHIO; USAMI, EISEKI; IWAI, MINA; NAKAO, TOSHIYA; YOSHIMURA, TOMOAKI; MORI, HIROMI; SUGIYAMA, TADASHI; TERAMACHI, HITOMI

    2014-01-01

    In the present study, medication adherence and factors affecting adherence were examined in patients taking oral anticancer agents. In June 2013, 172 outpatients who had been prescribed oral anticancer agents by Ogaki Municipal Hospital (Ogaki, Gifu, Japan) completed a questionnaire survey, with answers rated on a five-point Likert scale. The factors that affect medication adherence were evaluated using a customer satisfaction (CS) analysis. For patients with good and insufficient adherence to medication, the median ages were 66 years (range, 21–85 years) and 73 years (range, 30–90 years), respectively (P=0.0004), while the median dosing time was 131 days (range, 3–3,585 days) and 219 days (24–3,465 days), respectively (P=0.0447). In 36.0% (62 out of 172) of the cases, there was insufficient medication adherence; 64.5% of those cases (40 out of 62) showed good medication compliance (4–5 point rating score). However, these patients did not fully understand the effects or side-effects of the drugs, giving a score of three points or less. The percentage of patients with good medication compliance was 87.2% (150 out of 172). Through the CS analysis, three items, the interest in the drug, the desire to consult about the drug and the condition of the patient, were extracted as items for improvement. Overall, the medication compliance of the patients taking the oral anticancer agents was good, but the medication adherence was insufficient. To improve medication adherence, a better understanding of the effectiveness and necessity of drugs and their side-effects is required. In addition, the interest of patients in their medication should be encouraged and intervention should be tailored to the condition of the patient. These steps should lead to improved medication adherence. PMID:25295117

  13. Preliminary study of the CRRES magnetospheric barium releases

    NASA Technical Reports Server (NTRS)

    Huba, J. D.; Bernhardt, P. A.; Lyon, J. G.

    1992-01-01

    Preliminary theoretical and computational analyses of the Combined Release and Radiation Effects Satellite (CRRES) magnetospheric barium releases are presented. The focus of the studies is on the evolution of the diamagnetic cavity which is formed by the barium ions as they expand outward, and on the structuring of the density and magnetic field during the expansion phase of the releases. Two sets of simulation studies are discussed. The first set is based upon a 2D ideal MHD code and provides estimates of the time and length scales associated with the formation and collapse of the diamagnetic cavity. The second set uses a nonideal MHD code; specifically, the Hall term is included. This additional term is critical to the dynamics of sub-Alfvenic plasma expansions, such as the CRRES barium releases, because it leads to instability of the expanding plasma. Detailed simulations of the G4 and G10 releases were performed. In both cases the expanding plasma rapidly structured: the G4 release structured at time t less than about 3 s and developed scale sizes of about 1-2 km, while the G10 release structured at time t less than about 22 s and developed scale sizes of about 10-15 km. It is also found that the diamagnetic cavity size is reduced from those obtained from the ideal MHD results because of the structure. On the other hand, the structuring allows the formation of plasma blobs which appear to free stream across the magnetic field; thus, the barium plasma can propagate to larger distances traverse to the magnetic field than the case where no structuring occurs. Finally, a new normal mode of the system was discovered which may be excited at the leading edge of the expanding barium plasma.

  14. Outpatient preoperative evaluation clinic can lead to a rapid shift from inpatient to outpatient surgery: a retrospective review of perioperative setting and outcome

    Microsoft Academic Search

    John B Pollard; Philippe Garnerin

    1999-01-01

    Study Objective: To report the rapid shift from inpatient to outpatient surgery that occurred after opening an outpatient preoperative evaluation clinic and the perioperative complications and mortality rates before and after this intervention.Design: Monthly variations of total volume of procedures and percentages of outpatient procedures were analyzed retrospectively using control charts over two consecutive 10-month periods before and after the

  15. [MRSA clones identified in outpatient dermatology clinics].

    PubMed

    Hosoya, Shino; Ito, Teruyo; Misawa, Shigeki; Yoshiike, Takashi; Oguri, Toyoko; Hiramatsu, Keiichi

    2014-11-01

    To know the characteristics of methicillin-resistant Staphylococcus aureus (MRSA) strains disseminating through the Japanese community, we have determined types of Staphylococcal cassette chromosome mec (SCCmec) elements, Multi-Locus Sequence Typing (MLST), and carriages of four exotoxin genes (toxic-shock syndrome toxin, Panton-Valentine Leukocidine, and exfoliative toxins a and b) using 54 MRSA strains isolated from outpatients attending dermatology clinics at the four university hospitals of Juntendo University. Ten clonal complexes and 12 SCCmec types have been identified. As a result, more than 15 MRSA clones that were defined by the combination of genotype and SCCmec type, were identified. Among them, Clonal Complex (CC) 5-type IIa SCCmec strains were the most major (16 strains). In contrast to the fact that CC5- type IIa SCCmec strains known as a hospital-associated MRSA clone in Japan carried toxic-shock syndrome toxin gene (tst), only 2 of 16 strains have been shown to carry tst. Thirty-eight (70.4%) of isolates belonged to the clones distinct from the CC5-type IIa SCCmec strains. Among them, CC8 strains were major (12 strains), which contained 9 tst-positive CC8-type IVl SCCmec clones and a CC8-type IVa SCCmec strain carrying the Panton Valentine Leukocidin gene (lukS, F-PV). Clones related to impetigo were also identified: 7 exfoliative toxin b (etb) -positive clones, CC89-type IIa SCCmec and CC89-type V SCCmec strains; and 2 exfoliative toxin a (eta) -positive CC121-type V SCCmec strains. Other clones were as follows: CC1-type IVa SCCmec, CC8-type I SCCmec, CC81-type IVg SCCmec, CC97-type IVc SCCmec, CC91-type IVa SCCmec, CC59-type IVg SCCmec, CC45-type IIn SCCmec, CC89-SCCmec nontypeable, and CC8-type IVm, novel subtype of type IV SCCmec were identified in this study. Our data showed that many novel MRSA clones have emerged in the community. PMID:25764806

  16. Outpatient treatment costs and their potential impact on cancer care.

    PubMed

    Isshiki, Takahiro

    2014-12-01

    Cancer creates a tremendous financial burden. Cancer-related costs are categorized into direct, indirect, and psychosocial costs. Although there have been many reports on medical care costs, which are direct, those on other costs are extremely scarce. We estimated travel time and costs required for cancer patients to receive outpatient treatment. We studied 521 cancer patients receiving anti-cancer treatment between February 2009 and December 2012 at the Outpatient Chemotherapy Center of Teikyo University Chiba Medical Center. Address data were extracted from Data Warehouse electronic medical records, and travel distance and time required for outpatient treatment were calculated via MapInfo and ACT Distance Calculator Package. Transportation costs were estimated on the basis of ¥274 (=$3.00) per kilometer. The study design was approved by an ethics review board of Teikyo University (12-851). Average round-trip travel distance, time, and cost for all patients were 26.7 km, 72.5 min, and ¥7,303 ($79.99), respectively. Cancer patients incurred a travel cost of ¥4000-¥9000 ($40.00 to $100.00) for each outpatient treatment. With population aging, seniors living alone and senior households are increasing, and outpatient visits are becoming a common burden. PMID:25060622

  17. Ambulatory surgery centers and outpatient urologic surgery among Medicare beneficiaries

    PubMed Central

    Suskind, Anne M.; Dunn, Rodney L.; Zhang, Yun; Hollingsworth, John M.; Hollenbeck, Brent K.

    2014-01-01

    Objectives To determine the effect of an ambulatory surgery center (ASC) opening in a healthcare market on utilization and quality of outpatient urologic surgery. Methods Retrospective cohort study of Medicare beneficiaries undergoing outpatient urologic surgery from 2001 to 2010. Markets were classified into three groups based on ASC status (i.e., those with ASCs, those without ASCs, and those where ASCs were introduced). Multiple propensity score methods adjusted for differences between markets and general linear mixed models determined the effect of ASC opening on utilization and quality, defined by mortality and hospital admission within 30 days of the index procedure. Results During the study period, 195 ASCs opened in markets previously without one. Rates of hospital based urologic surgery in markets where ASCs were introduced declined from 221 to 214 procedures per 10,000 beneficiaries in the 4 years after baseline. In contrast, rates in the other two market types increased over the same period (p < 0.001). Rates of outpatient urologic surgery overall (i.e., in the hospital and ASC) demonstrated similar growth across market types during same period (p = 0.56). The introduction of an ASC into a market was not associated with increases in hospital admission or mortality (p’s > 0.5). Conclusions The introduction of an ASC into a healthcare market lowered rates of outpatient urologic surgery performed in the more expensive hospital setting. This redistribution was not associated with declines in quality or with greater growth in overall outpatient surgery use. PMID:24976220

  18. Design, testing, fabrication and launch support of a liquid chemical barium release payload (utilizing the liquid fluorine-barium salt/hydrazine system)

    NASA Technical Reports Server (NTRS)

    Stokes, C. S.; Smith, E. W.; Murphy, W. J.

    1972-01-01

    A payload was designed which included a cryogenic oxidizer tank, a fuel tank, and burner section. Release of 30 lb of chemicals was planned to occur in 2 seconds at the optimum oxidizer to fuel ratio. The chemicals consisted of 17 lb of liquid fluorine oxidizer and 13 lb of hydrazine-barium salt fuel mixture. The fuel mixture was 17% barium chloride, 16% barium nitrate, and 67% hydrazine, and contained 2.6 lb of available barium. Two significant problem areas were resolved during the program: explosive valve development and burner operation. The release payload was flight tested, from Wallops Island, Virginia. The release took place at an altitude of approximately 260 km. The release produced a luminous cloud which expanded very rapidly, disappearing to the human eye in about 20 seconds. Barium ion concentration slowly increased over a wide area of sky until measurements were discontinued at sunrise (about 30 minutes).

  19. Designing an appointment system for an outpatient department

    NASA Astrophysics Data System (ADS)

    Panaviwat, Chalita; Lohasiriwat, Haruetai; Tharmmaphornphilas, Wipawee

    2014-06-01

    An outpatient department in which non-urgent patients arrived for consultation faces with the problem of patients' long waiting time. Lack of an effective appointment is considered as the cause. In this study, a discrete event simulation model was developed to evaluate an appointment system. The developed system considered appointment rule, sequencing rule and environmental factor (priority rule). Various appointment systems were examined by the simulation model. All proposed alternatives effectively reduced outpatient waiting time without adding extra resources. With the introduction of appointment system, simulation had shown that average waiting time could be reduced thirty-seven to forth-four percent as compared to the current status. The most effective appointment system was finally recommended to the outpatient department for implementation.

  20. Vanadium doped barium germanate microrods and photocatalytic properties under solar light

    NASA Astrophysics Data System (ADS)

    Pei, L. Z.; Wang, S.; Liu, H. D.; Lin, N.; Yu, H. Y.

    2015-01-01

    Vanadium doped barium germanate microrods have been prepared by a facile hydrothermal process. The obtained vanadium doped barium germanate microrods are proved to be hexagonal BaGe4O9 and orthorhombic Ba2V2O7 phases by X-ray diffraction. Scanning electron microscopy shows that the vanadium doped barium germanate products consist of microrods with the diameter of microscale size. The diameter of the mirorods decreases from 800 nm to 150 nm with the vanadium doping mass percentage increasing from 1% to 10%. Solid UV-vis diffuse reflectance spectra show that the band gap of the vanadium doped barium germanate is smaller than that of the undoped barium germanate. The photocatalytic activity has been greatly enhanced by the vanadium doping. The vanadium doped barium germanate microrods exhibit great application potential for the photocatalytic degradation of methylene blue under solar light irradiation.

  1. Life Model of Hollow Cathodes Using a Barium Calcium Aluminate Impregnated Tungsten Emitter

    NASA Technical Reports Server (NTRS)

    Kovaleski, S. D.; Burke, Tom (Technical Monitor)

    2001-01-01

    Hollow cathodes with barium calcium aluminate impregnated tungsten emitters for thermionic emission are widely used in electric propulsion. These high current, low power cathodes are employed in ion thrusters, Hall thrusters, and on the International Space Station in plasma contactors. The requirements on hollow cathode life are growing more stringent with the increasing use of electric propulsion technology. The life limiting mechanism that determines the entitlement lifetime of a barium impregnated thermionic emission cathode is the evolution and transport of barium away from the emitter surface. A model is being developed to study the process of barium transport and loss from the emitter insert in hollow cathodes. The model accounts for the production of barium through analysis of the relevant impregnate chemistry. Transport of barium through the approximately static gas is also being treated. Finally, the effect of temperature gradients within the cathode are considered.

  2. Barium and Yttrium abundance in intermediate-age and old open clusters

    E-print Network

    Mishenina, T; Carraro, G; Kovtyukh, V V; Yegorova, I A

    2013-01-01

    Barium is a neutron capture element, that, in open clusters, is frequently over-abundant with respect to the Iron. A clear explanation for this is still missing. Additionally, its gradient across the Galactic disk is poorly constrained. We measure the abundance of yttrium and barium using the synthetic spectrum method from UVES high-resolution spectra of eight distant open clusters, namely Ruprecht 4, Ruprecht 7, Berkeley 25, Berkeley 73, Berkeley 75, NGC 6192, NGC 6404, and NGC 6583. The barium abundance was estimated using NLTE approximation. We confirm that Barium is indeed over-abundant in most clusters, especially young clusters. Finally, we investigated the trend of yttrium and barium abundances as a function of distance in the Galaxy and ages. Several scenarios for the barium over-abundance are then discussed.

  3. Outpatient prescribing errors and the impact of computerized prescribing

    Microsoft Academic Search

    Tejal K. Gandhi; Saul N. Weingart; Andrew C. Seger; Joshua Borus; Elisabeth Burdick; Eric G. Poon; Lucian L. Leape; David W. Bates

    2005-01-01

    BACKGROUND: Medication errors are common among inpatients and many are preventable with computerized prescribing. Relatively little is\\u000a known about outpatient prescribing errors or the impact of computerized prescribing in this setting.\\u000a \\u000a \\u000a OBJECTIVE: To assess the rates, types, and severity of outpatient prescribing errors and understand the potential impact of computerized\\u000a prescribing.\\u000a \\u000a \\u000a \\u000a \\u000a DESIGN: Prospective cohort study in 4 adult primary care

  4. Polymerized complex route to barium titanate powders using barium-titanium mixed-metal citric acid complex

    SciTech Connect

    Arima, Momoko; Kakihana, Masato; Nakamura, Yoshiyuki; Yashima, Masatomo; Yoshimura, Masahiro [Tokyo Inst. of Tech., Yokohama (Japan)

    1996-11-01

    Barium titanate (BaTiO{sub 3}) powders were prepared by a polymerized complex method based on the Pechini-type reaction route, wherein a mixed solution of citric acid (CA), ethylene glycol (EG), and barium and titanium ions, with a molar ratio of CA:EG:Ba:Ti = 10:40:1:1, was polymerized to form a transparent resin, which was used as a precursor for BaTiO{sub 3}. Characterization of the initial precursor solution of EG, CA, and barium and titanium ions by Raman scattering and {sup 13}C-NMR spectroscopy indicated that barium and titanium ions were simultaneously stabilized with CA to form a barium-titanium mixed-metal CA complex with a stoichiometry similar to Ba:Ti:CA = 1:1:3. Raman and {sup 13}C-NMR spectra of the liquid mixture at various reaction stages indicated that the fundamental coordination structure of the mixed-metal complex remained almost unchanged throughout the polymerization process. X-ray diffractometry (XRD) measurements indicated formation of pseudo-cubic BaTiO{sub 3} free from BaCo, and TiO{sub 2} when the barium-titanium polymeric precursor was heat-treated in air at 500 C for 8 h or at 600 C for 2 h. However, the Raman spectra of the same powders indicated the formation of tetragonal (rather than cubic) BaTiO{sub 3}, with traces of high-temperature hexagonal BaTiO{sub 3} and an intermediate phase, Ba{sub 2}Ti{sub 2}O{sub 5}{center_dot}CO{sub 3}. A solid-state reaction between BaCO{sub 3} and TiO{sub 2} was concluded as not being responsible for the BaTiO{sub 3} formation; rather, BaTiO{sub 3} formed directly by thermal decomposition of the intermediate Ba{sub 2}Ti{sub 2}O{sub 5}{center_dot}CO{sub 3} phase at temperatures >500 C. In addition, by Raman scattering measurements, the intermediate Ba{sub 2}Ti{sub 2}O{sub 5}{center_dot}CO{sub 3} phase was found to be unstable in ambient air, yielding BaCO{sub 3} as one of the decomposed products.

  5. Elastic scattering of electrons by gadolinium and barium atoms

    NASA Astrophysics Data System (ADS)

    Miloshevsky, G. V.; Tolkach, V. I.; Rozin, S.; Shani, G.

    2000-08-01

    Total and differential cross-sections for elastic scattering of electrons from gadolinium and barium atoms in a wide energy range were calculated. In the low- and intermediate-energy regions, the phase theory of elastic scattering was used. At low incident energies (<10 eV), an additional polarization potential was introduced. At high incident energies, the Born approximation (keV range) and the Rutherford formula (MeV range) were applied. Our results are in rather good agreement with experimental data of Romanyuk et al. (Pis'ma Zh. Eksp. Teor. Fiz. 32 (1980) 472) for elastic scattering of very-low-energy electrons from barium atoms which confirm its reliability. This agreement is important because these experimental results are in serious disagreement with theoretical calculations of Szmytkowski and Sienkiewicz (Phys. Rev. A 50 (1994) 4007).

  6. Electromagnetic properties of photodefinable barium ferrite polymer composites

    NASA Astrophysics Data System (ADS)

    Sholiyi, Olusegun; Lee, Jaejin; Williams, John D.

    2014-07-01

    This article reports the magnetic and microwave properties of a Barium ferrite powder suspended in a polymer matrix. The sizes for Barium hexaferrite powder are 3-6 ?m for coarse and 0.8-1.0 ?m for the fine powder. Ratios 1:1 and 3:1 (by mass) of ferrite to SU8 samples were characterized and analyzed for predicting the necessary combinations of these powders with SU8 2000 Negative photoresist. The magnetization properties of these materials were equally determined and were analyzed using Vibrating Sample Magnetometer (VSM). The Thru, Reflect, Line (TRL) calibration technique was employed in determining complex relative permittivity and permeability of the powders and composites with SU8 between 26.5 and 40 GHz.

  7. Observations and theory of the AMPTE magnetotail barium releases

    NASA Technical Reports Server (NTRS)

    Bernhardt, P. A.; Roussel-Dupre, R. A.; Pongratz, M. B.; Haerendel, G.; Valenzuela, A.

    1987-01-01

    The barium releases in the magnetotail during the Active Magnetospheric Particle Tracer Explorers (AMPTE) operation were monitored by ground-based imagers and by instruments on the Ion Release Module. After each release, the data show the formation of a structured diamagnetic cavity. The cavity grows until the dynamic pressure of the expanding ions balances the magnetic pressure on its surface. The magnetic field inside the cavity is zero. The barium ions collect on the surface of the cavity, producing a shell. Plasma irregularities form along magnetic field lines draped over the surface of the cavity. The scale size of the irregularities is nearly equal to the thickness of the shell. The evolution and structuring of the diamagnetic cavity are modeled using magnetohydrodynamics theory.

  8. Numerical simulation of a radially injected barium cloud

    NASA Technical Reports Server (NTRS)

    Swift, D. W.; Wescott, E. M.

    1981-01-01

    Electrostatic two-dimensional numerical simulations of a radially symmetric barium injection experiment demonstrate that ions created by solar UV irradiation are electrostatically bound to the electrons which remain tied to the field lines on which they are created. Two possible instabilities are identified, but neither of them causes the barium plasma cloud to polarize in a way that would permit the plasma to keep up with the neutrals. In a second model, the velocity of the neutrals is allowed to be a function of the azimuthal angle. Here, a portion of the cloud does polarize in a way that allows a portion of the plasma to detach and move outward at the approximate speed of the neutrals. No rapid detachment is found when only the density of the neutrals is given an azimuthal asymmetry.

  9. NASA/Max Planck Institute Barium Ion Cloud Project.

    NASA Technical Reports Server (NTRS)

    Brence, W. A.; Carr, R. E.; Gerlach, J. C.; Neuss, H.

    1973-01-01

    NASA and the Max Planck Institute for Extraterrestrial Physics (MPE), Munich, Germany, conducted a cooperative experiment involving the release and study of a barium cloud at 31,500 km altitude near the equatorial plane. The release was made near local magnetic midnight on Sept. 21, 1971. The MPE-built spacecraft contained a canister of 16 kg of Ba CuO mixture, a two-axis magnetometer, and other payload instrumentation. The objectives of the experiment were to investigate the interaction of the ionized barium cloud with the ambient medium and to deduce the properties of electric fields in the proximity of the release. An overview of the project is given to briefly summarize the organization, responsibilities, objectives, instrumentation, and operational aspects of the project.

  10. Study of the photovoltaic effect in thin film barium titanate

    NASA Technical Reports Server (NTRS)

    Grannemann, W. W.; Dharmadhikari, V. S.

    1982-01-01

    Ferroelectric films of barium titanate were synthesized on silicon and quartz substrates, and the photoelectric effect in the structure consisting of metal deposited ferroelectric barium titanate film silicon was studied. A photovoltage with polarity that depends on the direction of the remanent polarization was observed. The deposition of BaTiO3 on silicon and fused quartz substrates was accomplished by an rf sputtering technique. A series of experiments to study the growth of ferroelectric BaTiO3 films on single crystal silicon and fused quartz substrates were conducted. The ferroelectric character in these films was found on the basis of evidence from the polarization electric field hysteresis loops, capacitance voltage and capacitance temperature techniques and from X-ray diffraction studies.

  11. Anomalies of piezoelectric coefficients in barium titanate thin films

    NASA Astrophysics Data System (ADS)

    Shirokov, Vladimir; Kalinchuk, Valery; Shakhovoy, Roman; Yuzyuk, Yury

    2014-11-01

    Modeling of electromechanical devices involves the use of different material coefficients, whose measurement is a difficult task, especially when the problem concerns thin films. Required coefficients of thin films could be found theoretically, using known values of the bulk constants. Electromechanical coefficients of barium titanate thin films are still unknown; therefore, it is expedient to carry out their calculations. We give here the full set of electromechanical coefficients of barium titanate thin films for the whole range of technologically available misfit strains. In the present paper, piezoelectric coefficients as functions of a misfit strain were calculated. It was revealed that piezoelectric coefficients exhibit anomalies at phase boundaries and inside the monoclinic r-phase as well. The obtained results allow finding the required values of the thin-film parameters, varying the misfit strain.

  12. Spectroscopy of barium attached to superfluid helium clusters

    NASA Astrophysics Data System (ADS)

    Stienkemeier, F.; Meier, F.; Lutz, H. O.

    To complement the data on absorption spectra of alkaline earth atoms attached to superfluid helium clusters we are reporting on barium atoms attached to 4HeN. The absorption spectrum of the lowest singlet transition is blue-shifted and strongly broadened compared to the corresponding unperturbed Ba (6s6p1Po1?6s21S0) transition in accord with the observations on Sr and Ca added to HeN [F. Stienkemeier, F. Meier, and H.O. Lutz: J. Chem. Phys. 107(24), 10816 (1997)]. Moreover, we compare the asymptotic values of shift and width of the excitation spectrum with increasing helium cluster size He ( 1000 up to 10000) to those found for barium atoms in bulk liquid helium.

  13. Nanoscale inhomogeneities in yttrium-barium-copper-oxide (YBCO) superconductors

    Microsoft Academic Search

    Zahirul Islam; S. K. Sinha; J. C. Lang; X. Liu; D. Haskel; S. C. Moss; G. Srajer; B. W. Veal; D. Wermeille; D. R. Lee; D. R. Haeffner; U. Welp; P. Wochner

    2004-01-01

    X-ray diffraction studies at the Advanced Photon Source reveal that nanoscale inhomogeneities, electronic or structural in origin, form in yttrium-barium-copper-oxide (YBa_2Cu_3O_6+x) superconductors and coexist with the superconducting (SC) state. Diffuse scattering from these inhomogeneous superstructures is due to atomic displacements with respect to equilibrium lattice sites (Z. Islam et al. Phys. Rev. B 66, 92501 (2002)), that are characterized by

  14. Isotopic Masses of Hydrogen, Chlorine, Barium, Cerium, and Neodymium

    Microsoft Academic Search

    Jay L. Benson; Walter H. Johnson

    1966-01-01

    The 16-in. double-focusing mass spectrometer at the University of Minnesota has been employed to measure the atomic mass of H1 and the atomic masses and isotopic mass differences of chlorine, barium, cerium, and neodymium. Recent improvements in instrumentation have increased the precision of both narrow and wide doublet measurements. The doublet C11H22-C12H10 was used to relate the H1 mass directly

  15. Synthesis and Electromagnetic Properties of Polyaniline-barium Ferrite Nanocomposite

    Microsoft Academic Search

    Yuan-Xun Li; Huai-Wu Zhang; Ying-Li Liu; John Q. Xiao

    2007-01-01

    The polyaniline (PANI)-barium ferrite composite with magnetic behavior was synthesized by in situ polymerization of aniline in the presence of BaFe12O19 nanoparticles of 60–80 nm in diameters. The structure, morphology and magnetic properties of samples were characterized by powder X-ray diffraction, Fourier transform infrared, scanning electron microscopy, transmission electron microscopy and vibrating sample magnetometer technique. The results of spectroanalysis indicated

  16. In-situ laser deposition of barium ferrite films

    Microsoft Academic Search

    W. D. Song; Y. F. Lu; W. J. Wang; C. K. Ong; J. P. Wang; T. C. Chong

    1999-01-01

    Barium ferrite films with high coercivity, large magnetic anisotropy, good crystal orientation and crystallinity with hexagonal symmetry have been prepared on single crystal sapphire substrates by laser in-situ deposition. The structures of these films were characterized by X-ray diffractometry. X-ray diffraction pattern shows a preferential c-axis orientation normal to the film plane at a deposition temperature of 900°C. The magnetic

  17. Microstructure of composite material with powders of barium ferrite

    Microsoft Academic Search

    R. Nowosielski; R. Babilas; G. Dercz; L. Paj?k b

    Purpose: The aim of the present work is the microstructure characterization of commercial powder BaFe12O19 (as-prepared) and composite material with BaFe12O19 powders and polymer matrix, using XRD (X-Ray Diffraction) and SEM (Scanning Electron Microscopy) methods. Design\\/methodology\\/approach: The morphology of barium ferrite powders and a fracture surface of the examined composite material was realized by using the scanning electron microscope. The

  18. Barium Ferrite Films Grown By Pulsed Laser Ablation

    Microsoft Academic Search

    A. Lisfi; J. C. Lodder; P. de Haan; F. J. G. Roesthuis

    1998-01-01

    Abstract:available only.\\u000aIt is known that barium ferrite (BaFe12019) can grow with perpendicular anisotropy on A1203 a single crystal substrate,' but also on an amorphous substrate by using a ZnO buffer.2 Because of its large magnetic anisotropy which can easily overcome the shape anisotropy of the film, this material can exhibit high potentiality as media for magnetic and magneto-optic recording.

  19. Oriented barium ferrite straight-field focusing structure

    Microsoft Academic Search

    I. Wagner

    1970-01-01

    An oriented barium ferrite straight-field structure for focusing the electron beam of a klystron has been designed and successfully manufactured. The structure is a hollow tapered hexagon, circumscribed about a9frac{3}{4}-inch outside diameter and3frac{7}{8}-inch inside diameter. The overall height, including pole pieces, is9frac{3}{8}inches. The peak axial field strength, before field shaping, is 1000 gauss, and transverse fields are held to 1

  20. Preparation of Acicular Barium Ferrite Particles and Their Magnetic Properties

    Microsoft Academic Search

    M. Sugimoto; Y. Arai; H. Harada; T. Nukui

    1985-01-01

    Methods for producing acicular barium ferrite particles for use in coated tape media were studied, and their magnetic and other properties were investigated. Acicular ¿-FeOOH particles were dispersed in a BaCl2 solution, and NaHCO3 added to precipitate BaCO3 on the particle surfaces. After washing and addition of B2O3, P2O5, or Bi2O3, particles were fired at 800 to 900°C; addition of

  1. Preparation of Nanoparticles of Barium Ferrite from Precipitation in Microemulsions

    Microsoft Academic Search

    B. J. Palla; D. O. Shah; P. Garcia-Casillas; J. Matutes-Aquino

    1999-01-01

    Magnetic nanoparticles of barium ferrite (BaFe12O19) have been synthesized using a microemulsion mediated process. The aqueous cores of water-in-oil microemulsions were used as constrained microreactors for the precipitation of precursor carbonate and hydroxide particles. These precursors were then calcined at 925°C for 12?h, during which time they were transformed to the hexagonal ferrite. The pH of reaction was varied between

  2. Barium ferrite powders prepared by milling and annealing

    Microsoft Academic Search

    R. Nowosielski; R. Babilas; G. Dercz; J. Wrona

    Purpose: Microstructure and magnetic properties analysis of barium ferrite powder obtained by milling and heat treatment. Design\\/methodology\\/approach: The milling process was carried out in a vibratory mill, which generated vibrations of the balls and milled material inside the container during which their collisions occur. After milling process the powders were annealed in electric chamber furnace. The X-ray diffraction methods were

  3. Microstructure and magnetic properties of commercial barium ferrite powders

    Microsoft Academic Search

    R. Nowosielski; R. Babilas; J. Wrona

    Purpose: Microstructural and magnetic properties analysis of commercial barium ferrite powder BaFe12O19. Design\\/methodology\\/approach: The X-ray diffraction methods were utilized not only for qualitative and quantitative phase analysis of studied powder sample, but also for the determination of lattice parameters, crystallite size and the lattice distortion. The Rietveld method was used in the verification of the qualitative phase composition and in

  4. Magnetic composites CoNi–barium ferrite prepared by electrodeposition

    Microsoft Academic Search

    E. Gómez; S. Pané; E. Vallés

    2005-01-01

    CoNi–barium ferrite magnetic composites have been prepared by using a chloride electroplating bath. The use of a cationic surfactant and a vigorous stirring of solution by means of a rod stirrer have been the key to assure a significant insertion of particles in the deposits. This incorporation was confirmed by chemical analysis, cross-section images and X-ray diffraction results. A maximum

  5. Radium and barium in the Amazon River system

    Microsoft Academic Search

    Willard S. Moore; John M. Edmond

    1984-01-01

    Data for ²²⁶Ra and ²²⁸Ra in the Amazon River system show that the activity of each radium isotope is strongly correlated with barium concentrations. Two trends are apparent, one for rivers which drain shield areas and another for all other rivers. These data suggest that there has been extensive fractionation of U, Th, and Ba during weathering in the Amazon

  6. Synthesis and characterization of barium ferrite–silica nanocomposites

    SciTech Connect

    Aguilar-González, M.A.; Mendoza-Suárez, G.; Padmasree, K.P., E-mail: padma512@yahoo.com

    2013-10-15

    In this work, we prepared barium ferrite-silica (BaM-SiO{sub 2}) nanocomposites of different molar ratios by high-energy ball milling, followed by heat-treatment at different temperatures. The microstructure, morphology and magnetic properties were characterized for different synthesis conditions by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and vibrating sample magnetometry (VSM). The results indicate that 15 h of milling was enough to avoid the generation of hematite phase and to get a good dispersion of barium ferrite particles in the ceramic matrix. For milling periods beyond 15 h and heat treatment above 900 °C, the XRD patterns showed the presence of hematite phase caused by the decomposition of BaM. The agglomerate size observed through SEM analysis was around 150 nm with a good BaM dispersion into the SiO{sub 2} matrix. The highest saturation magnetization (Ms) value obtained was 43 emu/g and the corresponding coercivity (Hc) value of 3.4 kOe for the composition 60BaM-40SiO{sub 2} milled for 15 h and heat treated at 900 °C. This coercivity value is acceptable for the application in magnetic recording media. Highlights: • Barium ferrite–silica nanocomposites were prepared by high energy ball milling. • Optimal processing time is 15 h milling and heat treatment at 900 °C. • This is enough to avoid the generation of hematite phase. • Obtain good dispersion of barium ferrite particles in the ceramic matrix • Above this processing time shows the presence of increased amount of hematite.

  7. The positive temperature coefficient of resistivity in barium titanate

    Microsoft Academic Search

    B. Huybrechts; K. Ishizaki; M. Takata

    1995-01-01

    Positive temperature coefficient of resistivity (PTCR) materials have become very important components, and among these materials\\u000a barium titanate compounds make up the most important group. When properly processed these compounds show a high PTCR at the\\u000a Curie temperature (the transition temperature from the ferroelectric tetragonal phase to the paraelectric cube phase). In\\u000a the first half of this paper literature related

  8. Elastic and Piezoelectric Coefficients of Single-Crystal Barium Titanate

    Microsoft Academic Search

    Don Berlincourt; Hans Jaffe

    1958-01-01

    Mechanical resonance and antiresonance frequencies were measured on barium titanate single-crystal elements maintained under electric dc bias from -50°C to +150°C. A complete set of elastic, piezoelectric, and dielectric constants of the tetragonal modification at 25°C is obtained. The elastic compliances show substantial deviation from cubic symmetry. Measurements in the orthorhombic state show longitudinal compliance four times higher than in

  9. Copper Compatible Barium Titanate Thin Films for Embedded Passives

    Microsoft Academic Search

    Jon Ihlefeld; Brian Laughlin; Alisa Hunt-Lowery; William Borland; Angus Kingon; Jon-Paul Maria

    2005-01-01

    Barium titanate thin films have been prepared by chemical solution deposition on 18 µ m thick, industry standard copper foils in the absence of chemical barrier layers. The final embodiment exhibits randomly oriented BaTiO3 grains with diameters between 0.1 and 0.3 µ m, and an equiaxed morphology. The average film thickness is 0.6 µ m and the microstructure is free

  10. Structural, Spectral And Optical Characterization Of Calcium Barium Tartrate Crystals

    NASA Astrophysics Data System (ADS)

    Freeda, M. Mary; Priya, R. Krishna; Freeda, T. H.; Delphine, S. Mary

    2011-10-01

    Single crystals of Calcium Barium tartrate (CBT) were grown by controlled diffusion in silica gel at ambient temperature. The structural characterization of the grown crystals was carried out by Powder X-ray diffraction analysis. The functional groups present in the crystals were identified using Fourier Transform Infrared spectral analysis. The UV-Vis-NIR transmission spectrum was recorded to study the optical transparency of the grown crystals.

  11. Synthesis and characterization of hard magnetic composites—Hollow microsphere\\/titania\\/barium ferrite

    Microsoft Academic Search

    Guohong Mu; Xifeng Pan; Na Chen; Chihuan He; Mingyuan Gu

    2008-01-01

    Hard magnetic composites—hollow microsphere (core)\\/titania (intermediate layer)\\/barium ferrite (magnetic shell) (M\\/T\\/B) were prepared by wet-chemical method. Barium ferrite nanoparticles were directly coated on the rutile titania-coated hollow microsphere forming light hard magnetic composites using sol–gel technique. The prepared composites were characterized with FESEM, EDS, XRD and vibrating sample magnetometry. The composites are composed of barium ferrite, hematite, titania and mullite.

  12. Barium ferrite powders prepared by microwave-induced combustion process and some of their properties

    Microsoft Academic Search

    Yen-Pei Fu; Cheng-Hsiung Lin; Ko-Ying Pan

    2004-01-01

    Barium ferrite powders were successfully synthesized by a microwave-induced combustion process. The process takes only a few minutes to obtain calcined barium ferrite powders. The resultant powders were investigated by XRD, SEM, VSM, TG\\/DTA, and a surface area measurement. The as-received product shows the barium ferrite with saturation magnetization (Ms)?23 emu\\/g and an intrinsic coercive force (iHc) of 595 Oe,

  13. Absorbing properties and structural design of microwave absorbers based on carbonyl iron and barium ferrite

    Microsoft Academic Search

    Y. B. Feng; T. Qiu; C. Y. Shen

    2007-01-01

    Carbonyl iron and barium ferrite powder (BaZn1.5Co0.5Fe16O27) were prepared in this work. The complex permittivity and permeability spectra for rubber radar absorbing materials employing carbonyl iron and barium ferrite powders were measured. A database describing the frequency dependence of the permittivities and permeabilities of the carbonyl iron and barium ferrite microwave absorbers with various powder percentage compositions in 2–18GHz was

  14. Absorbing properties and structural design of microwave absorbers based on carbonyl iron and barium ferrite

    Microsoft Academic Search

    Y. B. Feng; T. Qiu; C. Y. Shen

    2007-01-01

    Carbonyl iron and barium ferrite powder (BaZn1.5Co0.5Fe16O27) were prepared in this work. The complex permittivity and permeability spectra for rubber radar absorbing materials employing carbonyl iron and barium ferrite powders were measured. A database describing the frequency dependence of the permittivities and permeabilities of the carbonyl iron and barium ferrite microwave absorbers with various powder percentage compositions in 2 18

  15. 77 FR 31366 - Medicare Program; Semi-Annual Meeting of the Advisory Panel on Hospital Outpatient Payment (HOP...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-25

    ...meeting of the Advisory Panel on Hospital Outpatient Payment (HOP...their associated weights, and hospital outpatient therapeutic supervision...Presentations and Comments Because of staffing and resource limitations...adjustments, supervision of hospital outpatient diagnostic...

  16. 78 FR 31558 - Medicare Program; Second Semi-Annual Meeting of the Advisory Panel on Hospital Outpatient Payment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-24

    ...Meeting of the Advisory Panel on Hospital Outpatient Payment (HOP Panel...meeting of the Advisory Panel on Hospital Outpatient Payment (HOP...their associated weights, and hospital outpatient therapeutic services...Presentations and Comments Because of staffing and resource...

  17. 77 FR 70447 - Medicare Program; Semi-Annual Meeting of the Advisory Panel on Hospital Outpatient Payment (HOP...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-26

    ...meeting of the Advisory Panel on Hospital Outpatient Payment (HOP...their associated weights, and hospital outpatient therapeutic supervision...Presentations and Comments Because of staffing and resource limitations...adjustments, supervision of hospital outpatient diagnostic...

  18. 42 CFR 484.38 - Condition of participation: Qualifying to furnish outpatient physical therapy or speech pathology...

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...outpatient physical therapy or speech pathology services. 484.38 Section 484...outpatient physical therapy or speech pathology services. An HHA that wishes to furnish outpatient physical therapy or speech pathology services must meet all the...

  19. 42 CFR 484.38 - Condition of participation: Qualifying to furnish outpatient physical therapy or speech pathology...

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Qualifying to furnish outpatient physical therapy or speech pathology services...Qualifying to furnish outpatient physical therapy or speech pathology services...wishes to furnish outpatient physical therapy or speech pathology...

  20. 42 CFR 484.38 - Condition of participation: Qualifying to furnish outpatient physical therapy or speech pathology...

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...furnish outpatient physical therapy or speech pathology services. 484.38 Section...furnish outpatient physical therapy or speech pathology services. An HHA that wishes to furnish outpatient physical therapy or speech pathology services must meet all...

  1. 42 CFR 484.38 - Condition of participation: Qualifying to furnish outpatient physical therapy or speech pathology...

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...furnish outpatient physical therapy or speech pathology services. 484.38 Section...furnish outpatient physical therapy or speech pathology services. An HHA that wishes to furnish outpatient physical therapy or speech pathology services must meet all...

  2. 42 CFR 484.38 - Condition of participation: Qualifying to furnish outpatient physical therapy or speech pathology...

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...furnish outpatient physical therapy or speech pathology services. 484.38 Section...furnish outpatient physical therapy or speech pathology services. An HHA that wishes to furnish outpatient physical therapy or speech pathology services must meet all...

  3. 76 FR 72003 - Calendar Year 2011 Cost of Outpatient Medical, Dental, and Cosmetic Surgery Services Furnished by...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-21

    ...Outpatient Medical, Dental, and Cosmetic Surgery Services Furnished by Department of Defense...outpatient medical, dental, and cosmetic surgery services furnished by military treatment...outpatient medical, dental, and cosmetic surgery services rates referenced are...

  4. 78 FR 62709 - Calendar Year 2013 Cost of Outpatient Medical, Dental, and Cosmetic Surgery Services Furnished by...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-22

    ...Outpatient Medical, Dental, and Cosmetic Surgery Services Furnished by Department of Defense...outpatient medical, dental and cosmetic surgery services furnished by military treatment...Outpatient Medical, Dental, and Cosmetic Surgery rates referenced are effective upon...

  5. High-frequency magnetic properties of low-temperature sintered Co?Ti substituted barium ferrites

    Microsoft Academic Search

    Changsheng Wang; Xiwei Qi; Longtu Li; Ji Zhou; Xiaohui Wang; Zhenxing Yue

    2003-01-01

    Co?Ti substituted barium ferrites BaFe12?2xCoxTixO19 were prepared by a modified chemical coprecipitation method and low-temperature sintering with Bi2O3 doping. Effects of Co?Ti substitution amount and the barium ferrite particles fabrication temperature on high-frequency magnetic properties were investigated. The initial permeability of sintered barium ferrites could be promoted effectively with Bi2O3 doping. Higher temperature for barium ferrite particles fabrication resulted in

  6. 38 CFR 17.49 - Priorities for outpatient medical services and inpatient hospital care.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...outpatient medical services and inpatient hospital care. 17.49 Section 17.49 ...DEPARTMENT OF VETERANS AFFAIRS MEDICAL Hospital, Domiciliary and Nursing Home Care...outpatient medical services and inpatient hospital care. In scheduling...

  7. 42 CFR 447.321 - Outpatient hospital and clinic services: Application of upper payment limits.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    42 Public Health 4 2011-10-01...Outpatient hospital and clinic services: Application...Section 447.321 Public Health CENTERS FOR MEDICARE...SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES...Outpatient Hospital and Clinic Services §...

  8. 42 CFR 447.321 - Outpatient hospital and clinic services: Application of upper payment limits.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    42 Public Health 4 2012-10-01...Outpatient hospital and clinic services: Application...Section 447.321 Public Health CENTERS FOR MEDICARE...SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES...Outpatient Hospital and Clinic Services §...

  9. 42 CFR 447.321 - Outpatient hospital and clinic services: Application of upper payment limits.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    42 Public Health 4 2013-10-01...Outpatient hospital and clinic services: Application...Section 447.321 Public Health CENTERS FOR MEDICARE...SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES...Outpatient Hospital and Clinic Services §...

  10. 42 CFR 447.321 - Outpatient hospital and clinic services: Application of upper payment limits.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    42 Public Health 4 2014-10-01...Outpatient hospital and clinic services: Application...Section 447.321 Public Health CENTERS FOR MEDICARE...SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES...Outpatient Hospital and Clinic Services §...

  11. Outpatient protocol for biofeedback therapy of pelvic floor outlet obstruction

    Microsoft Academic Search

    James W. Fleshman; Zeev Dreznik; Kathleen Meyer; Robert D. Fry; Robert Carney; Ira J. Kodner

    1992-01-01

    Pelvic floor outlet obstruction is a rare cause of severe constipation. Anal myectomy, subtotal colectomy, and medical therapy have limited success. The purpose of this study was to develop a short outpatient treatment using biofeedback techniques. Nine patients with severe constipation and straining resulting from pelvic floor outlet obstruction underwent complete investigation of the pelvic floor musculature and anal sphincter

  12. Assessing Geographical Clustering of Outpatient Psychiatric Service Utilization in Philadelphia

    E-print Network

    Smith, Tony E.

    -spot, Outpatient psychiatric service utilization, GIS, Racial disparity #12;2 Assessing Geographical Clustering, CMHC Act (1963) under the Kennedy administration established "Community Mental Health Centers" (CMHCs) across the nation to provide high-quality mental health services that are geographically and economically

  13. Cultural Issues in an Outpatient Program for Stimulant Abusers

    Microsoft Academic Search

    Patricia Pérez-Arce; Kirkland D. Carr; James L. Sorensen

    1993-01-01

    Cocaine abuse has created widespread problems, especially in poor urban ethnic minority communities. This article discusses the cultural issues in delivering a cocaine treatment program to a predominantly minority patient population. The Stimulant Treatment Outpatient Program (STOP) of San Francisco General Hospital's Substance Abuse Services was established in 1990 as a public service clinic. Many program elements apply equally well

  14. Behavioral Treatments During Outpatient Methadone Maintenance: A Controlled Evaluation.

    ERIC Educational Resources Information Center

    Bigelow, George; And Others

    The Treatment Evaluation Project was established to evaluate the feasibility of using behavioral treatment in conjunction with methadone maintenance to improve the effectiveness of methadone treatment. Over 100 outpatients were accepted into treatment and randomly assigned to one of four behavioral treatment modalities in addition to the usual…

  15. Integrative Outpatient Group Therapy for Discharged Elderly Psychiatric Inpatients.

    ERIC Educational Resources Information Center

    Schmid, A. H.; Rouslin, M.

    1992-01-01

    Examined effectiveness of outpatient group therapy for discharged elderly psychiatric inpatients. Found that therapy was enhanced by participation of caregivers or significant others, in-depth exploration of medical issues and medication, and the creation of a socially active facilitating environment with extensions into the community. (Author/NB)

  16. Updated 10/2012 Detox Facilities and Outpatient Detox

    E-print Network

    Oliver, Douglas L.

    Systems of CT Substance Abuse Treatment Program 950 Campbell Avenue, Unit 116- A3 West Haven, CT 203Updated 10/2012 Detox Facilities and Outpatient Detox Please note patient or family member may 500 Blue Hills Avenue Hartford, CT 860-714-3739 (Detox #) Call every day for availability Medicaid

  17. Alprazolam Compared to Clobazam and Placebo in Anxious Outpatients

    Microsoft Academic Search

    Aitor Castillo; Cesar Sotillo; Javier Mariategui

    1987-01-01

    In this double-blind study we compared alprazolam, clobazam, and placebo for the treatment of outpatients suffering from generalized anxiety disorder. At the end of the treatment, the three groups were significantly improved without showing differences among them. However, both active-drug groups were much improved at the end of week 1 in contrast to the placebo group. We were unable to

  18. Selecting Unique Claims in the Outpatient File - SEER-Medicare

    Cancer.gov

    For Outpatient claims, sort by patient_id, from_dt, link_num, and seg_num. Keep the first record in the sort (if first link_num;) in order to eliminate duplicate charge and payment amounts from the file.

  19. Out-Patient Nurse Involvement--An Answer to Success

    ERIC Educational Resources Information Center

    Monaco, Ruth J.

    1976-01-01

    The article describes the planning and implementation of a continuing education inservice program for out-patient clinic nursing staff. Educational needs were assessed through interviews. Brief, twice-monthly seminar sessions stressed participant involvement. Copies of evaluation instruments are included which indicate favorable participant…

  20. 42 CFR 410.60 - Outpatient physical therapy services: Conditions.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...certain inpatients of a hospital or a CAH or SNF. Medicare Part B pays for outpatient...to an inpatient of a hospital, CAH, or SNF who requires them but who has exhausted...institution that is a hospital, a CAH, or a SNF. (iv) Treat individuals who are...

  1. 42 CFR 410.60 - Outpatient physical therapy services: Conditions.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...certain inpatients of a hospital or a CAH or SNF. Medicare Part B pays for outpatient...to an inpatient of a hospital, CAH, or SNF who requires them but who has exhausted...institution that is a hospital, a CAH, or a SNF. (iv) Treat individuals who are...

  2. 42 CFR 410.60 - Outpatient physical therapy services: Conditions.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...certain inpatients of a hospital or a CAH or SNF. Medicare Part B pays for outpatient...to an inpatient of a hospital, CAH, or SNF who requires them but who has exhausted...institution that is a hospital, a CAH, or a SNF. (iv) Treat individuals who are...

  3. 42 CFR 410.60 - Outpatient physical therapy services: Conditions.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...certain inpatients of a hospital or a CAH or SNF. Medicare Part B pays for outpatient...to an inpatient of a hospital, CAH, or SNF who requires them but who has exhausted...institution that is a hospital, a CAH, or a SNF. (iv) Treat individuals who are...

  4. 42 CFR 410.60 - Outpatient physical therapy services: Conditions.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...certain inpatients of a hospital or a CAH or SNF. Medicare Part B pays for outpatient...to an inpatient of a hospital, CAH, or SNF who requires them but who has exhausted...institution that is a hospital, a CAH, or a SNF. (iv) Treat individuals who are...

  5. Toward Instituting a Chaperone Policy in Outpatient Pediatric Clinics

    ERIC Educational Resources Information Center

    Feldman, Kenneth W.; Jenkins, Carol; Laney, Tyler; Seidel, Kristy

    2009-01-01

    Objectives: We sought to evaluate child, parent and medical provider preferences for chaperones for outpatient encounters and to evaluate the acceptability and frequency of utilization following institution of a chaperone policy. Secondarily, we sought to understand what medical history and examinations teens consider "sensitive." Design: We…

  6. Perceived Mental Illness Stigma among Youth in Psychiatric Outpatient Treatment

    ERIC Educational Resources Information Center

    Elkington, Katherine S.; Hackler, Dusty; McKinnon, Karen; Borges, Cristiane; Wright, Eric R.; Wainberg, Milton L.

    2012-01-01

    This research explores the experiences of mental illness stigma in 24 youth (58.3% male, 13-24 years, 75% Latino) in psychiatric outpatient treatment. Using Link and Phelan's (2001) model of stigmatization, we conducted thematic analysis of the interview texts, examining experiences of stigma at individual and structural levels, in addition to the…

  7. Patient Satisfaction in Malaysia's Busiest Outpatient Medical Care

    PubMed Central

    Perianayagam, Wilson; Abdul Manaf, Rizal; Ali Jadoo, Saad Ahmed; Al-Dubai, Sami Abdo Radman

    2015-01-01

    This study aimed to explore factors associated with patient satisfaction of outpatient medical care in Malaysia. A cross-sectional exit survey was conducted among 340 outpatients aged between 13 and 80 years after successful clinical consultations and treatment acquirements using convenience sampling at the outpatient medical care of Tengku Ampuan Rahimah Hospital (HTAR), Malaysia, being the country's busiest medical outpatient facility. A survey that consisted of sociodemography, socioeconomic, and health characteristics and the validated Short-Form Patient Satisfaction Questionnaire (PSQ-18) scale were used. Patient satisfaction was the highest in terms of service factors or tangible priorities, particularly “technical quality” and “accessibility and convenience,” but satisfaction was low in terms of service orientation of doctors, particularly the “time spent with doctor,” “interpersonal manners,” and “communication” during consultations. Gender, income level, and purpose of visit to the clinic were important correlates of patient satisfaction. Effort to improve service orientation among doctors through periodical professional development programs at hospital and national level is essential to boost the country's health service satisfaction. PMID:25654133

  8. Survey of satisfaction with care in a rheumatology outpatient clinic

    Microsoft Academic Search

    J Hill; H A Bird; R Hopkins; C Lawton; V Wright

    1992-01-01

    Consumer satisfaction is increasingly recognised by hospital administrators and health care providers as an important aspect of health care. A study was undertaken to investigate the satisfaction with care among patients with rheumatoid arthritis (RA) attending a rheumatology outpatient clinic at Leeds General Infirmary. The Leeds satisfaction questionnaire was developed and rigorously tested for reliability (Cronbachs alpha) and stability (test\\/retest).

  9. Rates of isolated sleep paralysis in outpatients with anxiety disorders

    Microsoft Academic Search

    Michael W. Otto; Naomi M. Simon; Mark Powers; Devon Hinton; Alyson K. Zalta; Mark H. Pollack

    2006-01-01

    Initial research suggests that rates of isolated sleep paralysis (ISP) are elevated in individuals with panic disorder and particularly low in individuals with other anxiety disorders. To further evaluate these findings, we examined rates of ISP in a sample outpatients with primary diagnoses of panic disorder (n=24), social anxiety disorder (n=18), or generalized anxiety disorder (n=18). We obtained an overall

  10. Outpatient Treatment of Primary Anorexia Nervosa in Adult Males.

    ERIC Educational Resources Information Center

    Ziesat, Harold A., Jr.; Ferguson, James M.

    1984-01-01

    Describes three cases of adult-onset primary anorexia nervosa in males. For each case, the history and diagnostic patterns are considered, followed by a discussion of the course of outpatient treatment. The therapy was multimodal and included elements of behavioral contingency management, cognitive therapy, and dynamic psychotherapy. (JAC)

  11. Patient Satisfaction in Malaysia's Busiest Outpatient Medical Care.

    PubMed

    Ganasegeran, Kurubaran; Perianayagam, Wilson; Abdul Manaf, Rizal; Ali Jadoo, Saad Ahmed; Al-Dubai, Sami Abdo Radman

    2015-01-01

    This study aimed to explore factors associated with patient satisfaction of outpatient medical care in Malaysia. A cross-sectional exit survey was conducted among 340 outpatients aged between 13 and 80 years after successful clinical consultations and treatment acquirements using convenience sampling at the outpatient medical care of Tengku Ampuan Rahimah Hospital (HTAR), Malaysia, being the country's busiest medical outpatient facility. A survey that consisted of sociodemography, socioeconomic, and health characteristics and the validated Short-Form Patient Satisfaction Questionnaire (PSQ-18) scale were used. Patient satisfaction was the highest in terms of service factors or tangible priorities, particularly "technical quality" and "accessibility and convenience," but satisfaction was low in terms of service orientation of doctors, particularly the "time spent with doctor," "interpersonal manners," and "communication" during consultations. Gender, income level, and purpose of visit to the clinic were important correlates of patient satisfaction. Effort to improve service orientation among doctors through periodical professional development programs at hospital and national level is essential to boost the country's health service satisfaction. PMID:25654133

  12. Psychiatric illness in two contrasting ethiopian outpatient populations

    Microsoft Academic Search

    M. Dormaar; R. Giel; J. N. van Luijk

    1974-01-01

    Two Ethiopian general outpatient populations with a very different socio-economic background showed a significant difference in the proportions of patients with psychiatric illness. The two clinics varied considerably in their accessability to patients. The differences in the prevalence of psychiatric illness are explained in terms of the varying illness behaviour of the two populations rather than as a result of

  13. Self-Esteem and Suicide Ideation in Psychiatric Outpatients

    ERIC Educational Resources Information Center

    Bhar, Sunil; Ghahramanlou-Holloway, Marjan; Brown, Gregory; Beck, Aaron T.

    2008-01-01

    Depression, hopelessness, and low self-esteem are implicated as vulnerability factors for suicide ideation. The association of self-esteem with suicide ideation after controlling for depressed mood and hopelessness was examined. Adult psychiatric outpatients (N = 338) completed measures of self-esteem, suicide ideation, hopelessness, and…

  14. Aetiology of Intellectual Disability in Paediatric Outpatients in Northern India

    ERIC Educational Resources Information Center

    Jauhari, Prashant; Boggula, Raju; Bhave, Anupama; Bhargava, Roli; Singh, Chandrakanta; Kohli, Neera; Yadav, Rajesh; Kumar, Rashmi

    2011-01-01

    Aim: To study the aetiology of intellectual disability in patients presenting to hospital and the diagnostic yield of a standardized examination. Method: Over a 1-year period, the first three children presenting to the paediatric outpatients department (OPD) on 2 selected weekdays with developmental delay, suspected intellectual disability, or…

  15. Community-acquired pneumonia in outpatients: aetiology and outcomes.

    PubMed

    Cillóniz, Catia; Ewig, Santiago; Polverino, Eva; Marcos, Maria Angeles; Prina, Elena; Sellares, Jacobo; Ferrer, Miquel; Ortega, Mar; Gabarrús, Albert; Mensa, Josep; Torres, Antoni

    2012-10-01

    The purpose of this study was to establish the microbial aetiology and outcomes of patients with community-acquired pneumonia (CAP) treated as outpatients after presenting to a hospital emergency care unit. A prospective observational study was carried out in the Hospital Clinic of Barcelona (Barcelona, Spain). All consecutive cases of CAP treated as outpatients were included. 568 adult outpatients with CAP were studied (mean ± SD age 47.2 ± 17.6 yrs; 110 (19.4%) were aged ? 65 yrs). Aetiological diagnoses were established in 188 (33.1%) cases. Streptococcus pneumoniae was the most frequent pathogen followed by Mycoplasma pneumoniae and respiratory viruses. Legionella was detected in 13 (2.3%) cases. More than one causative agent was found in 17 (9.0%) patients. Mortality was low (three (0.5%) patients died) and other adverse events were rare (30 (5.2%) patients had complications, 13 (2.3%) were re-admitted and treatment failed in 13 (2.3%)). Complications were mostly related to pleural effusion and empyema, and re-admissions and treatment failures to comorbidities. Outpatients with CAP have a characteristic microbial pattern. Regular antipneumococcal coverage remains mandatory. Treatment failures and re-admissions are rare and may be reduced by increased attention to patients requiring short-term observation in the emergency care unit and in the presence of pleural effusion and comorbidities. PMID:22267760

  16. 42 CFR 410.62 - Outpatient speech-language pathology services: Conditions and exclusions.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Outpatient speech-language pathology services: Conditions and exclusions...Services § 410.62 Outpatient speech-language pathology services: Conditions and exclusions...Medicare Part B pays for outpatient speech-language pathology services only if they...

  17. 42 CFR 410.62 - Outpatient speech-language pathology services: Conditions and exclusions.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Outpatient speech-language pathology services: Conditions and exclusions...Services § 410.62 Outpatient speech-language pathology services: Conditions and exclusions...Medicare Part B pays for outpatient speech-language pathology services only if they...

  18. 63 FR 47552 - Medicare Program; Prospective Payment System for Hospital Outpatient Services

    Federal Register 2010, 2011, 2012, 2013, 2014

    1998-09-08

    As required by sections 4521, 4522, and 4523 of the Balanced Budget Act of 1997, this proposed rule would eliminate the formula- driven overpayment for certain outpatient hospital services, extend reductions in payment for costs of hospital outpatient services, and establish in regulations a prospective payment system for hospital outpatient services (and for Medicare Part B services furnished to......

  19. Are the CMS Hospital Outpatient Quality Measures Relevant for Rural Hospitals?

    ERIC Educational Resources Information Center

    Casey, Michelle M.; Prasad, Shailendra; Klingner, Jill; Moscovice, Ira

    2012-01-01

    Context: Quality measures focused on outpatient settings are of increasing interest to policy makers, but little research has been conducted on hospital outpatient quality measures, especially in rural settings. Purpose: To evaluate the relevance of Centers for Medicare and Medicaid Services' (CMS) outpatient quality measures for rural hospitals,…

  20. Factors Associated with Deliberate Self-Harm Behaviour among Depressed Adolescent Outpatients

    ERIC Educational Resources Information Center

    Tuisku, Virpi; Pelkonen, Mirjami; Kiviruusu, Olli; Karlsson, Linnea; Ruuttu, Titta; Marttunen, Mauri

    2009-01-01

    This study examined whether depressed adolescent outpatients with deliberate self-harm behaviour (DSH) differed from non-suicidal depressed adolescent outpatients in depressive and anxiety symptoms, alcohol use, perceived social support and number of negative life-events. Depressed adolescent outpatients (n = 155) aged 13-19 years were interviewed…

  1. A review of the health impacts of barium from natural and anthropogenic exposure.

    PubMed

    Kravchenko, Julia; Darrah, Thomas H; Miller, Richard K; Lyerly, H Kim; Vengosh, Avner

    2014-08-01

    There is an increasing public awareness of the relatively new and expanded industrial barium uses which are potential sources of human exposure (e.g., a shale gas development that causes an increased awareness of environmental exposures to barium). However, absorption of barium in exposed humans and a full spectrum of its health effects, especially among chronically exposed to moderate and low doses of barium populations, remain unclear. We suggest a systematic literature review (from 1875 to 2014) on environmental distribution of barium, its bioaccumulation, and potential and proven health impacts (in animal models and humans) to provide the information that can be used for optimization of future experimental and epidemiological studies and developing of mitigative and preventive strategies to minimize negative health effects in exposed populations. The potential health effects of barium exposure are largely based on animal studies, while epidemiological data for humans, specifically for chronic low-level exposures, are sparse. The reported health effects include cardiovascular and kidney diseases, metabolic, neurological, and mental disorders. Age, race, dietary patterns, behavioral risks (e.g., smoking), use of medications (those that interfere with absorbed barium in human organism), and specific physiological status (e.g., pregnancy) can modify barium effects on human health. Identifying, evaluating, and predicting the health effects of chronic low-level and moderate-level barium exposures in humans is challenging: Future research is needed to develop an understanding of barium bioaccumulation in order to mitigate its potential health impacts in various exposured populations. Further, while occupationally exposed at-risk populations exist, it is also important to identify potentially vulnerable subgroups among non-occupationally exposed populations (e.g., elderly, pregnant women, children) who are at higher risk of barium exposure from drinking water and food. PMID:24844320

  2. Weak Carbon-Hydrogen-Nitrogen Interactions Affect the Heterocyclic Ligand Bonding Modes in Barium Complexes Containing 2-Tetrazolato

    E-print Network

    Schlegel, H. Bernhard

    Weak Carbon-Hydrogen-Nitrogen Interactions Affect the Heterocyclic Ligand Bonding Modes in Barium calculations of barium complexes of the formula Ba- (azolate)2(18-crown-6). With dimethylaminotetrazolate [CN4

  3. Project EARTH-12-GMH2: Cadmium and barium isotopes as tracers of modern and past ocean processes

    E-print Network

    Henderson, Gideon

    Project EARTH-12-GMH2: Cadmium and barium isotopes as tracers of modern and past ocean processes Supervisor: Professor Gideon Henderson Cadmium and barium both show surface depletion in the oceans, are both

  4. Recovery in the outpatient setting: 36-month results from the Schizophrenia Outpatients Health Outcomes (SOHO) study.

    PubMed

    Novick, Diego; Haro, Josep Maria; Suarez, David; Vieta, Eduard; Naber, Dieter

    2009-03-01

    Recovery is an important outcome of schizophrenia that has not been well defined or researched. Using a stringent definition of recovery that included long-lasting symptomatic and functional remission as well as an adequate quality of life for a minimum of 24 months and until the 36-month visit, we determined the frequency and predictors of recovery in patients with schizophrenia during 3 years of antipsychotic treatment in the prospective, observational Schizophrenia Outpatients Health Outcomes (SOHO) study. Of the 6642 patients analysed, 33% achieved long-lasting symptomatic remission, 13% long-lasting functional remission, 27% long-lasting adequate quality of life, and 4% achieved recovery during the 3 year follow-up period. Logistic regression analysis revealed that social functioning at study entry (having good occupational/vocational status, living independently and being socially active) and adherence with medication were factors significantly associated with achieving recovery. Higher negative symptom severity, higher BMI and lack of effectiveness as the reason for change of medication at baseline were baseline factors associated with a lower likelihood of achieving recovery. Treatment with olanzapine was also associated with a higher frequency of recovery compared with risperidone, quetiapine, typical antipsychotics (oral, depot) and patients taking two or more antipsychotic medications. There were no differences among the patients taking olanzapine, clozapine and amisulpride. Predictors of long-lasting symptomatic remission, functional remission and adequate quality of life were also independently analysed. Although the results should be interpreted conservatively due to the observational, non-randomised study design, they indicate that only a small proportion of patients with schizophrenia achieve recovery and suggest that social functioning, medication adherence and type of antipsychotic are important predictors of recovery. PMID:19070991

  5. Lack of effect of drinking water barium on cardiovascular risk factors

    SciTech Connect

    Wones, R.G.; Stadler, B.L.; Frohman, L.A. (Univ. of Cincinnati College of Medicine, OH (USA))

    1990-04-01

    Higher cardiovascular mortality has been associated in a single epidemiological study with higher levels of barium in drinking water. The purpose of this study was to determine whether drinking water barium at levels found in some U.S. communities-alters the known risk factors for cardiovascular disease. Eleven healthy men completed a 10-week dose-response protocol in which diet was controlled. Other aspects of the subjects' lifestyles known to affect cardiac risk factors were controlled, and the barium content (as barium chloride) of the drinking water was varied from 0, to 5 ppm, to 10 ppm. Multiple blood and urine samples, morning and evening blood pressure measurements, and 48-hr electrocardiographic monitoring were performed at each dose of barium. There were no changes in morning or evening systolic or diastolic blood pressures, plasma cholesterol or lipoprotein or apolipoprotein levels, serum potassium or glucose levels, or urine catecholamine levels. There were no arrythmias related to barium exposure detected on continuous electrocardiographic monitoring. A trend was seen toward increased total serum calcium levels with exposure to barium, which was of borderline statistical significance and of doubtful clinical significance. In summary, drinking water barium at levels of 5 and 10 ppm did not appear to affect any of the known modifiable cardiovascular risk factors.

  6. LACK OF EFFECT OF DRINKING WATER BARIUM ON CARDIOVASCULAR RISK FACTORS

    EPA Science Inventory

    Higher cardiovascular mortality has been associated in a single epidemiological study with higher levels of barium in drinking water. he purpose of this study was to determine whether drinking water barium at levels found in some U.S. communities alters the known risk factors for...

  7. The effect of barium on perceptions of taste intensity and palatability

    PubMed Central

    Dietsch, Angela M.; Solomon, Nancy Pearl; Steele, Catriona M.; Pelletier, Cathy A.

    2015-01-01

    Purpose Barium may affect the perception of taste intensity and palatability. Such differences are important considerations in the selection of dysphagia assessment strategies and interpretation of results. Methods Eighty healthy women grouped by age (younger, older) and genetic taste status (supertaster, non-taster) rated intensity and palatability for seven tastants prepared in deionized water with and without 40% w/v barium: non-carbonated and carbonated water, diluted ethanol, and high concentrations of citric acid (sour), sodium chloride (salty), caffeine (bitter) and sucrose (sweet). Mixed model analyses explored the effects of barium, taster status, and age on perceived taste intensity and acceptability of stimuli. Results Barium was associated with lower taste intensity ratings for sweet, salty, and bitter tastants, higher taste intensity in carbonated water, and lower palatability in water, sweet, sour, and carbonated water. Older subjects reported lower palatability (all barium samples, sour) and higher taste intensity scores (ethanol, sweet, sour) compared to younger subjects. Supertasters reported higher taste intensity (ethanol, sweet, sour, salty, bitter) and lower palatability (ethanol, salty, bitter) than non-tasters. Refusal rates were highest for younger subjects and supertasters, and for barium (regardless of tastant), bitter, and ethanol. Conclusions Barium suppressed the perceived intensity of some tastes and reduced palatability. These effects are more pronounced in older subjects and supertasters, but younger supertasters are least likely to tolerate trials of barium and strong tastant solutions. PMID:24037100

  8. Noise and Recording Properties of Barium-Ferrite Particulate Media Studied by Micromagnetic Modeling

    Microsoft Academic Search

    Pierre-Olivier Jubert; Brian Biskeborn; Diana Qiu; Ayako Matsumoto; Hitoshi Noguchi; Osamu Shimizu

    2011-01-01

    We study noise and recording properties of nonoriented barium-ferrite particulate media using micromagnetic modeling. The packing and orientation distribution of the barium ferrite particles are reproduced very well with our packing algorithm. The distribution of switching fields is determined from experimental hysteresis loops. Using these parameters, we perform recording simulations of periodic waveforms written at various frequencies and extract broad-band

  9. Nanocrystalline structure and magnetic properties of barium ferrite particles prepared via glycine as a fuel

    Microsoft Academic Search

    Jianxun Qiu; Le Liang; Mingyuan Gu

    2005-01-01

    The barium ferrite particles were prepared using a self-propagating combustion method with glycine as a fuel. The process was investigated with differential scanning calorimeter and thermogravimetric analysis. The effects of the pH value of the precursor solution, the glycine dosage and calcination temperature on the morphology, the crystalline structure and the magnetic properties of the barium ferrite particles were studied

  10. Anisotropy and switching behavior of recording media: comparison of barium ferrite and acicular particles

    Microsoft Academic Search

    M. P. Sharrock

    1990-01-01

    The anisotropy and switching behavior of recording media made with barium ferrite platelets are very different from those of media made with acicular magnetic particles. It was found that the ratio of the anisotropy field to the remanence coercivity increases with the diameter-to-thickness ratio (aspect ratio) of barium ferrite particles and is higher than for acicular particles except for platelets

  11. Underlayer and substrate effects in RF-magnetron sputtered barium ferrite thin film media

    Microsoft Academic Search

    A. T. A. Wee; J. P. Wang; A. C. H. Huan; L. P. Tan; R. Gopalakrishnan; K. L. Tan

    1997-01-01

    The effect of employing various sputtered underlayers and commercially available substrates in order to optimize the characteristics of barium ferrite (BaM) thin films for magnetic recording media have been studied. Our results show that the choice of underlayer or substrate controls the resultant surface morphology and magnetic properties of the BaM film. In particular, it was found that barium ferrite

  12. Effect of Magnetic Properties for High Density Recording of Barium-Ferrite Particulate Medium

    Microsoft Academic Search

    N. Aoki; M. Hirokoh

    1991-01-01

    In this paper we introduce barium ferrite tape samples with a high recording characteristic in the conventional longitudinal magnetization mode, and explain the origin of their high output voltage at high recording densities, with reference to the effect of the magnetic characteristic and the behavior of remanent magnetization. Longitudinally and non-oriented barium ferrite recording media were prepared using the same

  13. Factors influencing the remanent properties of hard magnetic barium ferrites: Impurity phases and grain sizes

    Microsoft Academic Search

    Ugur Topal

    2008-01-01

    In the present study, the effects of impurity phases and grain dimensions on the remanence properties of barium ferrite magnets are examined. The relationship between isothermal remanence MR (H) and demagnetization remanence MD (H) for non-interacting single domain particles, MD (H) =MR (Hmax)?2MR (H), was used in order to investigate the interactions between particles in barium ferrite samples. We have

  14. Magnetic properties of coprecipitated barium ferrite powders as a function of synthesis conditions

    Microsoft Academic Search

    Suzilene R. Janasi; Daniel Rodrigues; Fernando J. G. Landgraf; Marília Emura

    2000-01-01

    Barium ferrite is widely used as a permanent magnet because of its large coercivity and low cost. The usual route to produce barium ferrites is the ceramic method. In order to overcome the detrimental milling effects in the magnetic properties, ferrite powders were obtained by coprecipitation. This method can produce high purity materials with a narrow particle size distribution. In

  15. Crystal structure and magnetic properties of barium ferrite synthesized using GSPC and HEBM

    Microsoft Academic Search

    Jianxun Qiu; Mingyuan Gu

    2006-01-01

    In order to synthesize barium ferrite at low temperatures, a gel self-propagating combustion (GSPC) technique and a high-energy ball milling (HEBM) process are combined. After the resultants of gel combustion are milled and subsequently calcined, barium ferrite is formed. The morphologies of the milled powders are examined with transmission electron microscopy. The crystal structure of the powders during the milling

  16. Occupancy and site distribution of europium in barium magnesium aluminate Eu Mossbauer spectroscopy

    E-print Network

    Boolchand, Punit

    Occupancy and site distribution of europium in barium magnesium aluminate by 151 Eu Mo investigated this phosphor with varying europium concentrations and different synthesis conditions using 151 Eu Barium magnesium aluminate (BaMgAl10O17) activated by europium ions, also known as BAM, is widely used

  17. Cation non-stoichiometry in yttrium-doped barium zirconate: phase behavior, microstructure, and proton conductivity

    E-print Network

    Cation non-stoichiometry in yttrium-doped barium zirconate: phase behavior, microstructure-stoichiometry by incorporation of yttrium on the A-site. The dopant partitioning can explain the decrease in cell constant conductivity. Barium zirconate, specifically yttrium-doped BaZrO3, has attracted particular attention amongst

  18. Synthesis of Single-Crystalline Perovskite Nanorods Composed of Barium Titanate and Strontium Titanate

    E-print Network

    Heller, Eric

    Synthesis of Single-Crystalline Perovskite Nanorods Composed of Barium Titanate and Strontium Titanate Jeffrey J. Urban, Wan Soo Yun, Qian Gu, and Hongkun Park* Department of Chemistry and Chemical alkoxide precursors and 1 mmol of oleic acid (Aldrich, 99+%). The precursors, barium titanium isopropoxide

  19. Dielectric properties of MgO-doped compositionally graded multilayer barium strontium titanate films

    E-print Network

    Alpay, S. Pamir

    Dielectric properties of MgO-doped compositionally graded multilayer barium strontium titanate shifters and filters operat- ing in the microwave regime.1­4 Ferroelectrics FEs such as barium strontium titanate Ba1-xSrxTiO3 BST have emerged as leading candidates for such applications due to their highly

  20. Impact of thermal strain on the dielectric constant of sputtered barium strontium titanate thin films

    E-print Network

    York, Robert A.

    Impact of thermal strain on the dielectric constant of sputtered barium strontium titanate thin, California 93106 Received 6 November 2001; accepted for publication 10 January 2002 Barium strontium titanate: magnesium oxide, strontium titanate, sapphire, silicon, and vycor glass. These substrates were chosen

  1. Charge and polarization distributions at the 90 domain wall in barium titanate ferroelectric

    E-print Network

    Goddard III, William A.

    Charge and polarization distributions at the 90° domain wall in barium titanate ferroelectric on quantum mechanics studies to provide a first-principles description of the 90° domain wall in barium titanate. Using periodic cells with lengths of up to 74 nm 5120 atoms , the authors find that the domain

  2. Tracking Phaselock Loop Characteristics with a VCO Using a Barium Strontium Titanate (BST)

    E-print Network

    Tracking Phaselock Loop Characteristics with a VCO Using a Barium Strontium Titanate (BST) Thin University, Raleigh, NC-27695-7919,USA, Ph: +1-919-767-3277, Email: avictor@harris.com Abstract -- Barium Strontium Titanate (BST) varactors utilized in a VCO demonstrate unique tuning characteristics compared

  3. Millimeter-wave magnetoelectric effects in bilayers of barium hexaferrite and lead zirconate titanate

    E-print Network

    Srinivasan, Gopalan

    excitations in bilayers of single crystal barium ferrite and lead zirconate titanate PZT . An electric field EMillimeter-wave magnetoelectric effects in bilayers of barium hexaferrite and lead zirconate titanate G. Srinivasan,a I. V. Zavislyak, and A. S. Tatarenko Physics Department, Oakland University

  4. Barium and molybdenum records in bivalve shells: Geochemical proxies for phytoplankton dynamics in coastal environments?

    E-print Network

    Abstract Barium : calcium and molybdenum : calcium ratios were investigated in shells of the tropicalBarium and molybdenum records in bivalve shells: Geochemical proxies for phytoplankton dynamics coupled plasma mass spectrometer. Absolute dates of shell precipitation assigned on the basis of periodic

  5. Evidence against Barium in the Mushroom Trogia venenata as a Cause of Sudden Unexpected Deaths in Yunnan, China

    PubMed Central

    Zhang, Ying; Li, Yanchun; Wu, Gang; Feng, Bang; Yoell, Shanze; Yu, Zefen; Zhang, Keqin

    2012-01-01

    This study examined barium concentrations in the mushroom Trogia venenata, the leading culprit for sudden unexpected deaths in Yunnan, southwest China. We found that barium concentrations in T. venenata from Yunnan were low and comparable to other foods, inconsistent with barium concentrations in this mushroom as a significant contributor to these deaths. PMID:23042168

  6. Environmental monitoring of offshore oil and gas drilling discharges—A caution on the use of barium as a tracer

    Microsoft Academic Search

    John P. Hartley

    1996-01-01

    Commonly used methods for extracting barium from marine sediments are inefficient when high concentrations of barium sulphate are present in samples. Comparative data on sea-bed barium concentrations around a single exploration well are presented to highlight the influence of different extraction methods which can result in 2–3 order of magnitude differences in levels recorded. This suggests that in many monitoring

  7. The effect of Pt interlayers on the magnetic and structural properties of perpendicularly oriented barium ferrite media

    E-print Network

    Laughlin, David E.

    barium ferrite media Zailong Zhuang,a) Maithri Rao, David E. Laughlin, and Mark H. Kryder Data Storage Systems Center, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 Perpendicular barium ferrite Ba-axis orientation for thicker films, Pt interlayers were added into the barium ferrite films. This article thus

  8. In-situ formation of barium ferrite in iron doped "tetragonal tungsten bronze": Elaboration of room temperature multiferroic composites

    E-print Network

    Paris-Sud XI, Université de

    recently have shown that a barium ferrite parasitic phase was responsible for RT magnetic hysteresis [91 In-situ formation of barium ferrite in iron doped "tetragonal tungsten bronze": Elaboration their room temperature multiferroics properties to the occurrence of barium ferrite parasitic phases

  9. IEEE TRANSACTIONS ON MAGNETICS, VOL. 37, NO. 4, JULY 2001 2589 Barium and Strontium Ferrite Perpendicular Thin

    E-print Network

    Laughlin, David E.

    IEEE TRANSACTIONS ON MAGNETICS, VOL. 37, NO. 4, JULY 2001 2589 Barium and Strontium FerriteAlSi) as the soft magnetic underlayer for hexagonal barium ferrite (BaM) and strontium ferrite (SrM) was studied-TYPE barium ferrite (BaM) and strontium ferrite (SrM) thin films which have hexagonal crystal structure

  10. Barium uptake into the shells of the common mussel (Mytilus edulis) and the potential for estuarine paleo-chemistry reconstruction

    E-print Network

    Paris-Sud XI, Université de

    Barium uptake into the shells of the common mussel (Mytilus edulis) and the potential for estuarine and Cosmochimica Acta 70, 2 (2006) 395-407" #12;Barium in Mytilus shells Gillikin et al. 2 40 Abstract In this study we test if calcite shells of the common mussel, Mytilus edulis, contain barium in proportion

  11. Diverse patterns of ocean export productivity change across the Cretaceous-7 Paleogene boundary: new insights from biogenic barium8

    E-print Network

    Paleogene boundary: new insights from biogenic barium8 9 10 11 12 Pincelli M. Hull1,2 and Richard D. Norris1 productivity patterns using new and compiled measurements of biogenic barium. Unlike a53 previous synthesis, we barium and other proxies in the central57 Pacific and some upwelling or neritic Atlantic sites indicate

  12. The role of microstructure and processing on the proton conducting properties of gadolinium-doped barium cerate

    E-print Network

    -doped barium cerate Sossina M. Hailea) Department of Material Science, California Institute of Technology-crystal fibers, grown by a modified float zone process, were notably barium deficient, and exhibited a low. Indeed, it has been proposed that the grain bound- aries in barium cerate, in particular, are responsible

  13. Self-biased planar millimeter wave notch filters based on magnetostatic wave excitation in barium hexagonal ferrite thin films

    E-print Network

    Self-biased planar millimeter wave notch filters based on magnetostatic wave excitation in barium; accepted 29 September 2010; published online 25 October 2010 The use of M-type barium hexagonal ferrite Ba-type barium hexagonal ferrite BaFe12O19 BaM thin films, as a replacement for those cubic garnets.4 Hexagonal

  14. Barium Ions for Quantum Computing Matthew Dietrich, Ryan Bowler, Gary Howell, Adam Kleczewski, Nathan Kurz, Viki Mirgon,

    E-print Network

    Blinov, Boris

    Barium Ions for Quantum Computing Matthew Dietrich, Ryan Bowler, Gary Howell, Adam Kleczewski+ make it an excellent qubit candidate. Here we report trapping 138Ba+, an even isotope of barium production, using the S1/2 to P3/2 transition. Barium as a Qubit The two hyperfine levels of the 137Ba

  15. The Effect of Biaxial Texture on the Effective Electromechanical Constants of Pollycrystalline Barium Titanate and Lead Titanate Thin Films

    E-print Network

    Bhattacharya, Kaushik

    Barium Titanate and Lead Titanate Thin Films Jennifer L. Ruglovsky1 , Jiangyu Li2 , Kaushik Bhattacharya1 for a polycrystalline film. We explore tetragonal 4MM materials, and give specific results for barium titanate and lead tensor. Increased out-of-plane texturing gives rise to an enhanced piezoelectric effect for barium

  16. Strain actuation of barium titanate single crystals under electromechanical loading in the non-polar [110] direction

    E-print Network

    Shu, Yi-Chung

    Strain actuation of barium titanate single crystals under electromechanical loading in the non of barium titanate single crystals under electromechanical loading in the non-polar [110] direction Jay in tetragonal barium titanate (BaTiO3) single crystals have focused on inducing ferroelastic 90 domain switching

  17. Nanoshell tubes of ferroelectric lead zirconate titanate and barium titanate Yun Luo, Izabela Szafraniak, and Nikolai D. Zakharov

    E-print Network

    Ramesh, R.

    Nanoshell tubes of ferroelectric lead zirconate titanate and barium titanate Yun Luo, Izabela templates, barium titanate and lead zirconate titanate tubes with diameters ranging from 50 nm up to several (PbZr0.52Ti0.48O3 ,PZT) and barium titanate (BaTiO3 ,BTO) nanotubes were fabricated by using

  18. Q factor of dual-tunable microwave resonators based on yttrium iron garnet and barium strontium titanate layered structures

    E-print Network

    Srinivasan, Gopalan

    500 m plate of ceramic barium strontium titanate having similar in-plane sizes. A frequency spectrum iron garnet YIG film and barium strontium titan- ate BST slab has been investigated. Less attentionQ factor of dual-tunable microwave resonators based on yttrium iron garnet and barium strontium

  19. AlGaN/GaN metal-oxide-semiconductor heterostructure field-effect transistors using barium strontium titanate

    E-print Network

    York, Robert A.

    -effect transistors have been formed by incorporating barium strontium titanate (BST) deposited by rf magnetron) for microwave applications.21,22 The use of the end-member phases (barium titanate and strontium titanate) underAlGaN/GaN metal-oxide-semiconductor heterostructure field-effect transistors using barium strontium

  20. The effect of biaxial texture on the effective electromechanical constants of polycrystalline barium titanate and lead titanate thin films

    E-print Network

    Atwater, Harry

    barium titanate and lead titanate thin films Jennifer L. Ruglovsky a,*, Jiangyu Li b , Kaushik to an enhanced piezoelectric effect for barium titanate films, but not for lead titanate. Twist texturing about for a polycrystalline film. We explore tetragonal 4MM materials, and give specific results for barium titanate and lead